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The preceding results may be generalized to arbitrary. Static network structure can stabilize human cooperation. The evolution of cooperation in network- structured populations has been a major focus of theoretical work in recent years. When players are embedded in fixed networks, cooperators are more likely to interact with, and benefit from, other cooperators. In theory, this clustering can foster cooperation on fixed networks under certain circumstances.
Laboratory experiments with humans, however, have thus far found no evidence that fixed network structure actually promotes cooperation. Here, we provide such evidence and help to explain why others failed to find it. First, we show that static networks can lead to a stable high level of cooperation, outperforming well-mixed populations.
Our results are consistent with a quantitative evolutionary game theoretic prediction for when cooperation should succeed on networks and, for the first time to our knowledge, provide an experimental demonstration of the power of static network structure for stabilizing human cooperation. PubMed Central. Calculation of reinforced-concrete frame strength under a simultaneous static cross section load and a column lateral impact.
When designing buildings with reinforced concrete that are planned to resist dynamic loads it is necessary to calculate this structural behavior under operational static and emergency impact and blast loads. Calculations of the structures under shock-wave loads can be performed by solving dynamic equations that do not consider static loads.
Due to this fact the calculation of reinforced concrete frame under a simultaneous static and dynamic load in full 3d settings becomes a very non trivial and resource consuming problem. This problem can be split into two tasks. The first one is a shock-wave problem that can be solved using software package RANET-3, which allows solving the problem using finite elements method adapted for dynamic task.
This method calculates strain-stress state of the material and its dynamic destruction, which is considered as growth and consolidation of micro defects under loading. On the second step the results of the first step are taken as input parameters for quasi static calculation of simultaneous static and dynamic load using finite elements method in AMP Civil Engineering Belov, Nikolay, E-mail: n. Thermal solitons as revealed by the static structure factor.
We study, within a framework of the classical fields approximation, the static structure factor of a weakly interacting Bose gas at thermal equilibrium. As in a recent experiment [R. Schley et al. On the other hand we find a disagreement between the Planck and phonon calculated just as for the bulk gas distributions in the case of elongated quasi-one-dimensional systems. We attribute this discrepancy to the existence of spontaneous dark solitons [i. Karpiuk et al. Vibration control in statically indeterminate adaptive truss structures.
In this work vibration control of statically indeterminate adaptive truss structures is investigated. Here, the actuators i. In statically determinate adaptive trusses no axial force is induced by the actuation. The control problem in statically indeterminate trusses may be dominated by the actuation-induced axial element forces. The creation of actuation-induced axial forces puts the system to a higher energy state, thus aggravates the controls.
It is shown that by the usage of sufficient number of slave actuators in addition to the actual control actuators, the actuation-induced axial element forces can be nullified, and the control problem of the statically indeterminate adaptive truss problem is reduced to that of a statically determinate one. It is also shown that the usage of slave actuators saves a great amount of control energy and provides robustness for the controls. Structural testing for static failure, flutter and other scary things.
Ground test and flight test methods are described that may be used to highlight potential structural problems that occur on aircraft. Primary interest is focused on light-weight general aviation airplanes.
The structural problems described include static strength failure, aileron reversal, static divergence, and flutter. An example of each of the problems is discussed to illustrate how the data acquired during the tests may be used to predict the occurrence of the structural problem. While some rules of thumb for the prediction of structural problems are given the report is not intended to be used explicitly as a structural analysis handbook. The results of a 2 Freedom Threat: low vs.
Quark structure of static correlators in high temperature QCD. We investigate the properties of the objects whose exchange gives static screening lengths by reconstructing their correlated quark-antiquark structure. This paper introduces a numerical experiment of creating the load bearing system of a high rise building. When designing the high-rise building, it is always an important task to find the right proportion between the height of the building and its perceptive width from the various angles of street view.
Investigated high rise building in this article was designed according to these criteria. The load bearing structure of the analysed object consists of a reinforced core, plates and steel tubes of an exoskeleton. Individual models varied in number and dimensions of diagrids in the exoskeleton.
In the models, loadings due to the own weight, weight of external glass cladding, and due to the wind according to the Standard, have been considered. The building was loaded by wind load from all four main directions with respect to its shape. Wind load was calculated using the 3D wind generator, which is a part of the Scia Engineer Software.
For each model the static analysis was performed. Its most important criterion was the maximum or minimum horizontal displacement rotation of the highest point of the building. This displacement was compared with the limit values of the displacement of the analysed high-rise building. By step-by-step adding diagrids and optimizing their dimensions the building model was obtained that complied with the criteria of the Limit Serviceability State.
The last model building was assessed also for the Ultimate Limit State. This model was loaded also by seismic loads for comparison with the load due to the wind. Static fatigue behavior is the main failure mode of optical fibers applied in sensors. In this paper, a computational framework based on continuum damage mechanics CDM is presented to calculate the crack propagation process and failure time of optical fibers subjected to static bending and tensile loads.
For this purpose, the static fatigue crack propagation in the glass core of the optical fiber is studied. Combining a finite element method FEM , we use the continuum damage mechanics for the glass core to calculate the crack propagation path and corresponding failure time. In addition, three factors including bending radius, tensile force and optical fiber diameter are investigated to find their impacts on the crack propagation process and failure time of the optical fiber under concerned situations.
Finally, experiments are conducted and the results verify the correctness of the simulation calculation. It is believed that the proposed method could give a straightforward description of the crack propagation path in the inner glass core. Additionally, the predicted crack propagation time of the optical fiber with different factors can provide effective suggestions for improving the long-term usage of optical fibers.
Numerical band structure calculations of plasma metamaterials. Metamaterials MM are materials engineered to display negative macroscopic permittivity and permeability. These materials allow for designed control over electromagnetic energy flow, especially at frequencies where natural materials do not interact. Plasmas have recently found application in MM as a negative permittivity component. The permittivity of a plasma depends on its electron density, which can be controlled by an applied field.
This means that plasmas can be used in MM to actively control the transmission or reflection of incident waves. This work focuses on a plasma MM geometry in which microplasmas are generated in perforations in a metal plate. We characterizethis material by its band structure , which describes its interaction with incident waves. The plasma-EM interactions are obtained by coupling Maxwell's equations to a simplified plasma momentum equation.
A plasma density profile is prescribed, and its effect on the band structure is investigated. The band structure calculations are typically done for static structures , whereas our current density responds to the incident waves. The resulting band structures are compared with experimental results. Stable static structures in models with higher-order derivatives. Bazeia, D. We investigate the presence of static solutions in generalized models described by a real scalar field in four-dimensional space—time.
We study models in which the scalar field engenders higher-order derivatives and spontaneous symmetry breaking, inducing the presence of domain walls. Despite the presence of higher-order derivatives, the models keep to equations of motion second-order differential equations, so we focus on the presence of first-order equations that help us to obtain analytical solutions and investigate linear stability on general grounds.
Moreover, if the model is further generalized to include k-field behavior, it may contribute to split the static structure itself. A superlinear iteration method for calculation of finite length journal bearing's static equilibrium position.
Solving the static equilibrium position is one of the most important parts of dynamic coefficients calculation and further coupled calculation of rotor system. The main contribution of this study is testing the superlinear iteration convergence method—twofold secant method, for the determination of the static equilibrium position of journal bearing with finite length. Essentially, the Reynolds equation for stable motion is solved by the finite difference method and the inner pressure is obtained by the successive over-relaxation iterative method reinforced by the compound Simpson quadrature formula.
The accuracy and efficiency of the twofold secant method are higher in comparison with the secant method and dichotomy. The total number of iterative steps required for the twofold secant method are about one-third of the secant method and less than one-eighth of dichotomy for the same equilibrium position.
The calculations for equilibrium position and pressure distribution for different bearing length, clearance and rotating speed were done. In the results, the eccentricity presents linear inverse proportional relationship to the attitude angle. The influence of the bearing length, clearance and bearing radius on the load-carrying capacity was also investigated.
The results illustrate that larger bearing length, larger radius and smaller clearance are good for the load-carrying capacity of journal bearing. The application of the twofold secant method can greatly reduce the computational time for calculation of the dynamic coefficients and dynamic characteristics of rotor-bearing system with a journal bearing of finite length.
The main contribution of this study is testing the superlinear iteration convergence method-twofold secant method, for the determination of the static equilibrium position of journal bearing with finite length. Wavelets in electronic structure calculations.
Ab initio calculations of the electronic structure of bulk materials and large clusters are not possible on today's computers using current techniques. The storage and diagonalization of the Hamiltonian matrix are the limiting factors in both memory and execution time. The scaling of both quantities with problem size can be reduced by using approximate diagonalization or direct minimization of the total energy with respect to the density matrix in conjunction with a localized basis.
Wavelet basis members are much more localized than conventional bases such as Gaussians or numerical atomic orbitals. This localization leads to sparse matrices of the operators that arise in SCF multi-electron calculations. We have investigated the construction of the one-electron Hamiltonian, and also the effective one- electron Hamiltonians that appear in density-functional and Hartree-Fock theories.
We develop efficient methods for the generation of the kinetic energy and potential matrices, the Hartree and exchange potentials, and the local exchange-correlation potential of the LDA. Test calculations are performed on one-electron problems with a variety of potentials in one and three dimensions. Interfacial ionic 'liquids': connecting static and dynamic structures. It is well known that room temperature ionic liquids RTILs often adopt a charge-separated layered structure , i.
However, the dynamic response of the layered structure to temporal variations in applied potential is not well understood. We used in situ, real-time x-ray reflectivity to study the potential-dependent electric double layer EDL structure of an imidazolium-based RTIL on charged epitaxial graphene during potential cycling as a function of temperature. The results suggest that the graphene-RTIL interfacial structure is bistable in which the EDL structure at any intermediate potential can be described by the combination of two extreme-potential structures whose proportions vary depending on the polarity and magnitude of the applied potential.
This picture is supported by the EDL structures obtained by fully atomistic molecular dynamics simulations at various static potentials. The potential-driven transition between the two structures is characterized by an increasing width but with an approximately fixed hysteresis magnitude as a function of temperature. For this research, we used in situ, real-time x-ray reflectivity to study the potential-dependent electric double layer EDL structure of an imidazolium-based RTIL on charged epitaxial graphene during potential cycling as a function of temperature.
Lastly, the potential-driven transition between the two structures is characterized by an increasing width but with an approximately fixed hysteresis magnitude as a function of temperature. Current deterministic structural methods are easily applied to substructures and components, and analysts have built great design insights and confidence in them over the years. However, deterministic methods cannot support systems risk analyses, and it was recently reported that deterministic treatment of statistical data is inconsistent with error propagation laws that can result in unevenly conservative structural predictions.
Assuming non-nal distributions and using statistical data formats throughout prevailing stress deterministic processes lead to a safety factor in statistical format, which integrated into the safety index, provides a safety factor and first order reliability relationship. The embedded safety factor in the safety index expression allows a historically based risk to be determined and verified over a variety of quasi- static metallic substructures consistent with the traditional safety factor methods and NASA Std.
Comparative static curing versus dynamic curing on tablet coating structures. Curing is generally required to stabilize film coating from aqueous polymer dispersion. This post-coating drying step is traditionally carried out in static conditions, requiring the transfer of solid dosage forms to an oven. But, curing operation performed directly inside the coating equipment stands for an attractive industrial application.
Recently, the use of various advanced physico-chemical characterization techniques i. Dynamic curing end-point was efficiently determined after 4h. The aim of the present work was to elucidate the influence of curing conditions on film-coating structures.
Furthermore, X-ray microdiffraction measurements pointed out different crystalline coating compositions depending on sample storage time. An aging mechanism might have occur during storage, resulting in the crystallization and the upward migration of cetyl alcohol, coupled to the downward migration of crystalline sodium lauryl sulfate within the coating layer. Interestingly, this new study clearly provided further knowledge into film-coating structures after a curing step and confirmed that curing operation could be performed in dynamic conditions.
All rights reserved. Quasi- static energy absorption of hollow microlattice structures. We present a comprehensive modeling and numerical study focusing on the energy quasi- static crushing behavior and energy absorption characteristics of hollow tube microlattice structures. The peak stress and effective plateau stress of the hollow microlattice structures are deduced for different geometrical parameters which gives volume and mass densities of energy absorption, D-v and D-m, scale with the relative density, rho over bar, as D-v similar to rho over bar 1 5 and D-m similar to rho over bar 0 5 , respectively, fitting very well to the experimental results of both 60 degrees inclined and 90 degrees predominately microlattices.
Insight into the correlations between microlattice architecture and energy absorption performance combined with the high degree of architecture control paves the way for designing high performance microlattice structures for a range of impact and impulse mitigation applications for vehicles and structures. C Elsevier Ltd. Investigations of formation of quasi- static vortex- structures in granular bodies using DEM.
The paper presents some two-dimensional simulation results of vortex- structures in cohesionless initially dense sand during quasi- static passive wall translation. The sand behaviour was simulated using the discrete element method DEM. Sand grains were modelled by spheres with contact moments to approximately capture the irregular grain shape. In order to detect vortex- structures , the Helmholtz-Hodge decomposition of a flow displacement field from DEM calculations was used.
This approach enabled us to distinguish both incompressibility and vorticity in the granular displacement field. Quasi- static elastography comparison of hyaline cartilage structures. Joint cartilage, a load bearing structure in mammals, has only limited ability for regeneration after damage. For tissue engineers to design functional constructs, better understanding of the properties of healthy tissue is required. Joint cartilage is a specialised structure of hyaline cartilage; a poroviscoelastic solid containing fibril matrix reinforcements.
Healthy joint cartilage is layered, which is thought to be important for correct tissue function. However, the behaviour of each layer during loading is poorly understood. Ultrasound elastography provides access to depth-dependent information in real-time for a sample during loading. A 15 MHz focussed transducer provided details from scatterers within a small fixed region in each sample. Quasi- static loading was applied to cartilage samples while ultrasonic signals before and during compressions were recorded.
Ultrasonic signals were processed to provide time-shift profiles using a sum-squared difference method and cross-correlation. Two structures of hyaline cartilage have been tested ultrasonically and mechanically to determine method suitability for monitoring internal deformation differences under load and the effect of the layers on the global mechanical material behaviour.
Results show differences in both the global mechanical properties and the ultrasonically tested strain distributions between the two structures tested. It was concluded that these differences are caused primarily by the fibril orientations. Unequal density effect on static structure factor of coupled electron layers. In order to understand the ordered phase, if any, in a real coupled electron layers CEL , there is a need to take into account the effect of unequal layer density.
Such phase is confirmed by a strong peak in a static structure factor. Further, to find the resultant effect of unequal density on intra- and interlayer static structure factors, we have compared our results with that of the recent CEL system with equal layer density and isolated single electron layer.
Static characteristics design of hydrostatic guide-ways based on fluid- structure interactions. With the raising requirements in micro optical systems, the available machines become hard to achieve the process dynamic and accuracy in all aspects. However, there is a difficulty in studying FSI with oil film as fluid domain. This paper aims at static characteristic design of a hydrostatic guide-way with capillary restrictors based on FSI. The pressure distribution of the oil film land is calculated by solving the Reynolds-equation with Galerkin technique.
A matlab program is designed to realize the coupling progress by modifying the load boundary in the submitting file and reading the deformation result. It's obvious that the stiffness of the hydrostatic bearing decreases with the weakening of the bearing structure. This program is proposed to make more precise prediction of bearing stiffness. Gas turbine is one of the most versatile items of turbo machinery nowadays. It is used in different modes such as power generation, oil and gas, process plants, aviation, domestic and related small industries.
This paper is based on the problems concerning blade profile selection, material selection and turbine rotor blade vibration that seriously impact the induced stress-deformation and structural functioning of developmental gas turbine engine.
In this paper for generating specific power by rotating blade at specific RPM, blade profile and material has been decided by static structural analysis. Gas turbine rotating blade RPM is decided by Modal Analysis so that the natural frequency of blade should not match with the excitation frequency.
Existing NACA profile has been selected as base model and then it is modified by bending it through Hence these three different blade profiles have been analyzed for three different materials viz. It is found that NACA with Among all the material Inconel gives best result.
Hence Blade of Inconel having Electronic structure and static dipole polarizability of C60 C The electronic structure of C60 C and its first-order response to a static electric field is studied by an all-electron density functional theory calculation using large polarized Gaussian basis sets. The C60 C is thus a near-perfect Faraday cage. A general model for stray dose calculation of static and intensity-modulated photon radiation.
There is an increasing number of cancer survivors who are at risk of developing late effects caused by ionizing radiation such as induction of second tumors. Hence, the determination of out-of-field dose for a particular treatment plan in the patient's anatomy is of great importance. The purpose of this study was to analytically model the stray dose according to its three major components. For patient scatter, a mechanistic model was developed. For collimator scatter and head leakage, an empirical approach was used.
The models utilize a nominal beam energy of 6 MeV to describe two linear accelerator types of a single vendor. The parameters of the models were adjusted using ionization chamber measurements registering total absorbed dose in simple geometries. Whole-body dose measurements using thermoluminescent dosimeters in an anthropomorphic phantom for static and intensity-modulated treatment plans were compared to the 3D out-of-field dose distributions calculated by a combined model.
By combining the model- calculated stray dose with the treatment planning system dose, the whole-body dose distribution can be viewed in the treatment planning system. The results suggest that the model is accurate, fast and can be used for a wide range of treatment modalities to calculate the whole-body dose distribution for clinical analysis.
For similar energy spectra, the mechanistic patient scatter model can be used independently of treatment machine or beam orientation. On static triplet structures in fluids with quantum behavior. The problem of the equilibrium triplet structures in fluids with quantum behavior is discussed. Theoretical questions of interest to the real space structures are addressed by studying the three types of structures that can be determined via path integrals instantaneous, centroid, and total thermalized-continuous linear response.
The cases of liquid para-H 2 and liquid neon on their crystallization lines are examined with path-integral Monte Carlo simulations, the focus being on the instantaneous and the centroid triplet functions equilateral and isosceles configurations. To analyze the results further, two standard closures, Kirkwood superposition and Jackson-Feenberg convolution, are utilized. In addition, some pilot calculations with path integrals and closures of the instantaneous triplet structure factor of liquid para-H 2 are also carried out for the equilateral components.
Triplet structural regularities connected to the pair radial structures are identified, a remarkable usefulness of the closures employed is observed e. The cases of liquid para-H2 and liquid neon on their crystallization lines are examined with path-integral Monte Carlo simulations, the focus being on the instantaneous and the centroid triplet functions equilateral and isosceles configurations. In addition, some pilot calculations with path integrals and closures of the instantaneous triplet structure factor of liquid para-H2 are also carried out for the equilateral components.
Acute effects of static stretching on passive stiffness of the hamstring muscles calculated using different mathematical models. The aim of this study was to assess the effects of static stretching on hamstring passive stiffness calculated using different data reduction methods.
Subjects performed a maximal range of motion test, five cyclic stretching repetitions and a static stretching intervention that involved five s static stretches. A computerised dynamometer allowed the measurement of torque and range of motion during passive knee extension.
Stiffness was then calculated as the slope of the torque-angle relationship fitted using a second-order polynomial, a fourth-order polynomial, and an exponential model. The second-order polynomial and exponential models allowed the calculation of stiffness indices normalized to knee angle and passive torque, respectively. Prior to static stretching, stiffness levels were significantly different across the models.
After stretching, while knee maximal joint range of motion increased, stiffness was shown to decrease. Stiffness decreased more at the extended knee joint angle, and the magnitude of change depended upon the model used. After stretching, the stiffness indices also varied according to the model used to fit data. Thus, the stiffness index normalized to knee angle was found to decrease whereas the stiffness index normalized to passive torque increased after static stretching.
Stretching has significant effects on stiffness, but the findings highlight the need to carefully assess the effect of different models when analyzing such data. Influence of static habitat attributes on local and regional Rocky intertidal community structure.
Rocky intertidal communities are structured by local environmental drivers, which can be dynamic, fluctuating on various temporal scales, or static and not greatly varying across years. We examined the role of six static drivers distance to freshwater, tidewater glacial presence, wave exposure, fetch, beach slope, and substrate composition on intertidal community structure across the northern Gulf of Alaska.
We hypothesized that community structure is less similar at the local scale compared with the regional scale, coinciding with static drivers being less similar on smaller than larger scales. We also hypothesized that static attributes mainly drive local biological community structure.
For this, we surveyed five to six sites in each of the six regions in the mid and low intertidal strata. Across regions, static attributes were not consistently different and only small clusters of sites had similar attributes. Additionally, intertidal communities were less similar on the site compared with the region level.
These results suggest that these biological communities are not strongly influenced by the local static attributes measured in this study. An alternative explanation is that static attributes among our regions are not different enough to influence the biological communities. This lack of evidence for a strong static driver may be a result of our site selection, which targeted rocky sheltered communities.
This suggests that this habitat may be ideal to examine the influence of dynamic drivers. We recommend that future analyses of dynamic attributes may best be performed after analyses have demonstrated that sites do not differ in static attributes.
Modern quantum chemistry deals with electronic structure calculations of unprecedented complexity and accuracy. They demand full power of high-performance computing and must be in tune with the given architecture for superior e ciency. To make such applications resourceaware, it is desirable to enable their static and dynamic adaptations using some external software middleware , which may monitor both system availability and application needs, rather than mix science with system-related calls inside the application.
Proposed asynchronous and hybrid models aim at overcoming this limitation. When linked with NICAN, the fragment molecular orbital FMO method is capable of adapting statically and dynamically its fragment scheduling policy based on the computing platform conditions. Signi cant execution time and throughput gains have been obtained due to such static adaptations when the compute nodes have very di erent core counts.
Dynamic adaptations are based on the main memory availability at run time. Hence, FMO may be able to complete the calculations whereas without such adaptations it aborts. Whether the static microstructural order information is strongly correlated with the subsequent structural rearrangement SR and their predicting power for SR are investigated experimentally in the quenched dusty plasma liquid with microheterogeneities.
The poor local structural order is found to be a good alarm to identify the soft spot and predict the short term SR. For the site with good structural order, the persistent time for sustaining the structural memory until SR has a large mean value but a broad distribution. The deviation of the local structural order from that averaged over nearest neighbors serves as a good second alarm to further sort out the short time SR sites. It has the similar sorting power to that using the temporal fluctuation of the local structural order over a small time interval.
Implementation of structural response sensitivity calculations in a large-scale finite-element analysis system. The methodology used to implement structural sensitivity calculations into a major, general-purpose finite-element analysis system SPAR is described. This implementation includes a generalized method for specifying element cross-sectional dimensions as design variables that can be used in analytically calculating derivatives of output quantities from static stress, vibration, and buckling analyses for both membrane and bending elements.
Limited sample results for static displacements and stresses are presented to indicate the advantages of analytically calculating response derivatives compared to finite difference methods. Continuing developments to implement these procedures into an enhanced version of SPAR are also discussed.
Coupled cluster calculations for static and dynamic polarizabilities of C New theoretical predictions for the static and frequency dependent polarizabilities of C60 are reported. Using the linear response coupled cluster approach with singles and doubles and a basis set especially designed to treat the molecular properties in external electric field, we obtained These numbers are in a good agreement with experimentally inferred data of Antoine et al.
Ballard et al. The reported results were obtained with the highest wave function-based level of theory ever applied to the C60 system. Global structure of static spherically symmetric solutions surrounded by quintessence. We investigate all static spherically symmetric solutions in the context of general relativity surrounded by a minimally-coupled quintessence field, using dynamical system analysis. In the case of a massless canonical scalar field we recovered all known black hole results, such as the Fisher solution, and we found that apart from the Schwarzschild solution all other solutions are naked singularities.
Additionally, we identified the symmetric phase space which corresponds to the white hole part of the solution and in the case of a phantom field, we were able to extract the conditions for the existence of wormholes and define all possible classes of solutions such as cold black holes, singular spacetimes and wormholes such as the Ellis wormhole, for example. For an exponential potential, we found that the black hole solution which is asymptotically flat is unique and it is the Schwarzschild spacetime, while all other solutions are naked singularities.
Furthermore, we found solutions connecting to a white hole through a maximum radius, and not a minimum radius throat such as wormhole solutions, therefore violating the flare-out condition. Finally, we have found a necessary and sufficient condition on the form of the potential to have an asymptotically AdS spacetime along with a necessary condition for the existence of asymptotically flat black holes.
A mathematical model of a structure is first created by approximating its load-bearing members with representative finite elements, then NASTRAN calculates the forces and moments that each finite element contributes to grid points located throughout the structure. The user selects the finite elements that correspond to structural members that contribute loads to the joints of interest, and identifies the grid point nearest to each such joint. This program reads the pertinent NASTRAN output, combines the forces and moments from the contributing elements to determine the resultant force and moment acting at each proximate grid point, then transforms the forces and moments from these grid points to the centroids of the affected joints.
Then the program uses these joint loads to obtain the axial and shear forces in the individual bolts. The program also performs a fail-safe analysis in which the foregoing calculations are repeated for a sequence of cases in which each fastener, in turn, is assumed not to transmit an axial force.
Calculated photonic structures for infrared emittance control. The high index used is representative of gallium arsenide in the thermal infrared range. The geometric parameters of the rod dimension, sphere radius, and lattice constants were chosen to give total reflectance for normal incidence, i. For these four photonic crystals, the bulk reflectance spectra and the wavelength-averaged thermal emittance as a function of crystal thickness were calculated.
The results reveal that potentially useful thermal signature suppression is obtained for crystals as thin as mum, i. The strength capabilities were demonstrated at ultimate percent of design limit loads. It was also verified that the spring rate of the flight configured shroud-to-Centaur forward structural deflections of the specimen became nonlinear, as expected, above limit load values.
The scope of the CRP is to improve and validate the simulation tools for the study and the design of the liquid metal cooled fast reactors. Moreover, training of the next generation of fast reactor analysts is being also considered the other scope of the CRP. The cause of the long-suspected excessive conservatism in the prevailing structural deterministic safety factor has been identified as an inherent violation of the error propagation laws when reducing statistical data to deterministic values and then combining them algebraically through successive structural computational processes.
These errors are restricted to the applied stress computations, and because mean and variations of the tolerance limit format are added, the errors are positive, serially cumulative, and excessively conservative. Reliability methods circumvent these errors and provide more efficient and uniform safe structures. The document is a tutorial on the deficiencies and nature of the current safety factor and of its improvement and transition to absolute reliability.
Linear and quadratic static response functions and structure functions in Yukawa liquids. We compute linear and quadratic static density response functions of three-dimensional Yukawa liquids by applying an external perturbation potential in molecular dynamics simulations.
The response functions are also obtained from the equilibrium fluctuations static structure factors in the system via the fluctuation-dissipation theorems. The good agreement of the quadratic response functions, obtained in the two different ways, confirms the quadratic fluctuation-dissipation theorem.
We also find that the three-point structure function may be factorizable into two-point structure functions, leading to a cluster representation of the equilibrium triplet correlation function. In this paper we estimate a structural model of higher education participation and labour choices in a static setting that accounts for individual heterogeneity and possible nesting structures in the decision process. We assume that young people that complete upper secondary education are faced with three choices, go to higher education, not go to….
The structural capabilities of the jettisonable metal shroud were tested and the interaction of the shroud with the Centaur stage was evaluated. A flight-configured shroud and the assemblies of the associated Centaur stage were tested for applied axial and shear loads to flight limit values.
The tests included various thermal, pressure, and load conditions to verify localized strength capabilities, to evaluate subsystem performance, and to determine the aging effect on insulation system properties. The tests series verified the strength capabilities of the shroud and of all associated flight assembles. Shroud deflections were shown to remain within allowable limits so long as load sharing members were connected between the shroud and the Centaur stage.
This paper presents a methodology for the analytical research solutions for the work pile foundations with surface broadening and inclined side faces in the ground array, based on the properties of Fourier transform of finite functions. The comparative analysis of the calculation results using the suggested method for prismatic piles, piles with surface broadening prismatic with precast piles and end walls with precast wedges on the surface is described.
Static and dynamic structural characterization of nanomaterial catalysts. Heterogeneous catalysts systems are pervasive in industry, technology and academia. These systems often involve nanostructured transition metal particles that have crucial interfaces with either their supports or solid products. Understanding the nature of these interfaces as well as the structure of the catalysts and support materials themselves is crucial for the advancement of catalysis in general.
Recent developments in the field of transmission electron microscopy TEM including dynamic transmission electron microscopy DTEM , electron tomography, and in situ techniques stand poised to provide fresh insight into nanostructured catalyst systems.
Several electron microscopy techniques are applied in this study to elucidate the mechanism of silica nanocoil growth and to discern the role of the support material and catalyst size in carbon dioxide and steam reforming of methane. The growth of silica nanocoils by faceted cobalt nanoparticles is a process that was initially believed to take place via a vapor-liquid-solid growth mechanism similar to other nanowire growth techniques.
The extensive TEM work described here suggests that the process may instead occur via transport of silicate and silica species over the nanoparticle surface. Electron tomography studies of the interface between the catalyst particles and the wire indicate that they grow from edges between facets.
Studies on reduction of the Co 3O4 nanoparticle precursors to the faceted pure cobalt catalysts were carried out using DTEM and in situ heating. Several novel electron microscopy techniques are described including annular dark field DTEM and a metaheuristic algorithm for solving the phase problem of coherent diffractive imaging.
By inserting an annular dark field aperture into the back focal. The evaluation of static stresses and strength of units and components is a crucial task for increasing reliability in the operation of vehicles and equipment, to prevent emergencies, especially in structures made of metal and composite materials. At the stage of creation and commissioning of structures to control the quality of manufacturing of individual elements and components, diagnostic control methods are widely used. They are acoustic, ultrasonic, X-ray, radiation methods and others.
The using of these methods to control the residual life and the degree of static stresses of units and parts during operation is fraught with great difficulties both in methodology and in instrumentation. In this paper, the authors propose an effective approach of operative control of the degree of static stresses of units and parts of mechanical structures which are in working condition, based on recording the changing in the surface wave properties of a system consisting of a sensor and a controlled environment unit, part.
The proposed approach of low-frequency diagnostics of static stresses presupposes a new adaptive-spectral analysis of a surface wave created by external action impact. It is possible to estimate implicit stresses of structures in the experiment due to this approach. Static and dynamic pile testing of reinforced concrete piles with structure integrated fibre optic strain sensors.
Static and dynamic pile tests are carried out to determine the load bearing capacity and the quality of reinforced concrete piles. As part of a round robin test to evaluate dynamic load tests, structure integrated fibre optic strain sensors were used to receive more detailed information about the strains along the pile length compared to conventional measurements at the pile head.
This paper shows the instrumentation of the pile with extrinsic Fabry-Perot interferometers sensors and fibre Bragg gratings sensors together with the results of the conducted static load test as well as the dynamic load tests and pile integrity tests. Effect of headspace mixing in static chambers and sampling protocol on calculated CH4 fluxes from soils. Juszczak, R. Closed static chambers are often used for greenhouse gas flux measurements from soils.
The type of chamber, chamber handling and sampling protocol can influence the measurements. In most cases the calculated fluxes are suspected to be underestimated mainly because of reduction of gas diffusion from the soil to chamber headspace due to changed trace gas concentration gradient. Thus, fans are often applied to obtain better mixing of the air inside the chamber headspace and in turn reduce the negative effect of decreased concentration gradient.
The open question is, however, to which extent the fluxes are changed by fans and whether they still remain underestimated or may even be overestimated? On the other hand, different sampling protocols are used assuming that they do not affect the flux measurements. The main aim of the campaign was to quantitatively assess the uncertaintities and errors related to static chamber measurements. During this campaign static chambers were tested for 5 different CH4 and N2O flux levels with 3 different soil conditions moisture and porosity in a calibration tank described by Pumpanen et al.
Among the different experiments, several special tests were carried out with the closed static chambers. Here, results of two special tests are presented to document whether 1 the air mixing inside the chamber headspace, 2 different sampling procedures influence the CH4 fluxes, and 3 how different calculation methods lead to varying results.
Two static chambers of different volumes The CH4 concentration inside the chamber headspace was monitored. We designed, fabricated and optimized 3D biomimetic magnetic structures that stimulate the osteogenesis in static magnetic fields. The structures were fabricated by direct laser writing via two-photon polymerization of IP-L photopolymer and were based on ellipsoidal, hexagonal units organized in a multilayered architecture. The magnetic activity of the structures was assured by coating with a thin layer of collagen-chitosan-hydroxyapatite-magnetic nanoparticles composite.
Starting from optimized 3D structures , we evaluated both qualitatively and quantitatively the effects of static magnetic fields of up to mT on cell proliferation and differentiation, by ALP alkaline phosphatase production, Alizarin Red and osteocalcin secretion measurements. We demonstrated that the synergic effect of 3D structure optimization and static magnetic stimulation enhances the bone regeneration by a factor greater than 2 as compared with the same structure in the absence of a magnetic field.
Coulomb structures of charged macroparticles in static magnetic traps at cryogenic temperatures. Electrically charged up to e macroscopic superconducting particles with sizes in the micrometer range confined in a static magnetic trap in liquid nitrogen and in nitrogen vapor at temperatures of K are observed experimentally.
Calculations , and comparison with an ideal minimum, of trimmed drag for conventional and canard configurations having various levels of static stability. Classical drag equations were used to calculate total and induced drag and ratios of stabilizer lift to wing lift for a variety of conventional and canard configurations. The Flight efficiencies of such configurations that are trimmed in pitch and have various values of static margin are evaluated.
Classical calculation methods are compared with more modern lifting surface theory. Calculating merit increases: a structured approach. This task requires complying with the company's compensation philosophy, meeting market competition, and rewarding employees fairly and equitably. Authors William W. Seithel, vice president, personnel of the Midwest Stock Exchange, Inc. Emans, director, employee compensation of the Kemper Group, describe a method for pinpointing a salary rate increase that is not only structured enough to move people through the salary range in accordance with a reward philosophy, but precise enough to provide a basis for projecting costs and flexible enough to meet the needs of various performance levels.
The method entails the use of a structured matrix that spells out the target percentage raises for various levels of performance. By using both the matrix-which is constructed to meet the individual company's needs-and a guide chart provided by the authors, it is possible to calculate a specific percentage increase for each employee. The manager who uses this system will find that the matrix is a mechanism for control as well as a means for projecting costs.
The quasi-equilibrium response of MOS structures : Quasi- static factor. The dynamic response of a MOS structure driven into a non-equilibrium behaviour by a voltage ramp is presented. In contrast to Khun's quasi- static technique it is shown that any ramp-driven MOS structure has some degree of non-equilibrium.
The mathematical model presented in the paper allows a better explanation of the experimental recordings. It is shown that this model could be used to analyse the various features of the response of the structure and that such physical parameters as the generation-rate, trap activation energy, and the effective capture constants could be obtained. To support NASAs long term goal of landing humans on Mars, technologies which enable the landing of heavy payloads are being developed.
Current entry, decent, and landing technologies are not practical for this class of payloads due to geometric constraints dictated by current launch vehicle fairing limitations. Therefore, past and present technologies are now being explored to provide a mass and volume efficient solution to atmospheric entry, including Hypersonic Inflatable Aerodynamic Decelerators HIADs.
Parchman, Zachary W. Adjoint-based sensitivity analysis of localized ignition in a non-premixed hydrogen-air mixing layer. AiiDA: automated interactive infrastructure and database for computational science. An adaptive lattice Boltzmann scheme for modeling two-fluid-phase flow in porous medium systems.
An assessment of coupling algorithms for nuclear reactor core physics simulations. Giese, Benjamin S. An exact and consistent adjoint method for high-fidelity discretization of the compressible flow equations. An implicit delta f particle-in-cell method with sub-cycling and orbit averaging for Lorentz ions.
An improved multilevel Monte Carlo method for estimating probability distribution functions in stochastic oil reservoir simulations. Analysis of hydrodynamic fluctuations in heterogeneous adjacent multidomains in shear flow. Analyzing large data sets from XGC1 magnetic fusion simulations using apache spark. Anelastic sensitivity kernels with parsimonious storage for adjoint tomography and full waveform inversion.
Application configuration selection for energy-efficient execution on multicore systems. Jupudi, Ravichandra; Finney, Charles E. Atomic detail visualization of photosynthetic membranes with GPU-accelerated ray tracing. Stone, John E. Neil; Schulten, Klaus. Vary, James P.
Benchmark study of the two-dimensional Hubbard model with auxiliary-field quantum Monte Carlo method. Benchmarking density functionals for hydrogen-helium mixtures with quantum Monte Carlo: Energetics, pressures, and forces. Beyond Darcy's law: The role of phase topology and ganglion dynamics for two-fluid flow. Armstrong, Ryan T. Kalinin, Sergei V. Singharoy, Abhishek; Barragan, Angela M. Boosting the accuracy and speed of quantum Monte Carlo: Size consistency and time step.
Changes in dominant moisture sources and the consequences for hydroclimate on the northeastern Tibetan Plateau during the past 32 kyr. Zuluaga, S. Cluster assisted water dissociation mechanism in MOF and controlling it using helium. Cold surges and dust events: Establishing the link between the East Asian Winter Monsoon and the Chinese loess record. Lv, Chao; Aitchison, Erick W. Competitive lithium solvation of linear and cyclic carbonates from quantum chemistry.
Computational approaches to detect allosteric pathways in transmembrane molecular machines. Dirmeyer, Paul A. Confronting the "Indian summer monsoon response to black carbon aerosol" with the uncertainty in its radiative forcing and beyond. Conjunctive management of surface and groundwater resources under projected future climate change scenarios.
Mani, Amir; Tsai, Frank T. Vazhkudai, Sudharshan S. Cosmic Dawn CoDa : the first radiation-hydrodynamics simulation of reionization and galaxy formation in the Local Universe. Cosolvent pretreatment in cellulosic biofuel production: effect of tetrahydrofuran-water on lignin structure and dynamics. Bazavov, A. Hezaveh, Yashar D. Odbadrakh, Kh. Designing a graphics processing unit accelerated petaflop capable lattice Boltzmann solver: Read aligned data layouts and asynchronous communication.
Deuteron-induced nucleon transfer reactions within an ab initio framework: First application to p-shell nuclei. Development of soft-sphere contact models for thermal heat conduction in granular flows. Diagnosing United States hurricane landfall risk: An alternative to count-based methodologies.
Befort, Daniel J. Disentangling redshift-space distortions and non-linear bias using the 2D power spectrum. Distributed and cloud-based multi-model analytics experiments on large volumes of climate change data in the Earth System Grid Federation eco-system. Fiore, S. Martinez, Andre P. Kozinsky, Boris; Akhade, Sneha A.
Efficacy of the SU 3 scheme for ab initio large-scale calculations beyond the lightest nuclei. Dytrych, T. Efficient three-dimensional Poisson solvers in open rectangular conducting pipe. Miorelli, M. Electromagnetic particle simulation of the effect of toroidicity on linear mode conversion and absorption of lower hybrid waves. Electron energization and structure of the diffusion region during asymmetric reconnection.
Dhindsa, Gurpreet K. Enhanced sampling simulation analysis of the structure of lignin in the THF-water miscibility gap. Ensemble-based docking: From hit discovery to metabolism and toxicity predictions. Evangelista, Wilfredo; Weir, Rebecca L. Estimate of the hadronic vacuum polarization disconnected contribution to the anomalous magnetic moment of the muon from lattice QCD. Chakraborty, Bipasha; Davies, C. Gamell, Marc; Katz, Daniel S. Evaluation of downscaled wind speeds and parameterised gusts for recent and historical windstorms in Switzerland.
Klasky, S. Cheung, Gavin K. Experimental characterization and atomistic modeling of interfacial void formation and detachment in short pulse laser processing of metal surfaces covered by solid transparent overlayers. Extraordinary heat during the s US Dust Bowl and associated large-scale conditions. Donat, Markus G. Extreme hydrological changes in the southwestern US drive reductions in water supply to Southern California by mid century.
Pagan, Brianna R. FatMan vs. First-principles simulations of 2-D semiconductor devices: mobility, I-V characteristics, and contact resistance. Luisier, M. Fission fragment charge and mass distributions in Pu n, f in the adiabatic nuclear energy density functional theory. Formation, migration, and clustering energies of interstitial He in alpha-quartz and beta-cristobalite.
Jourdain, Nicolas C. Laskowski, Gregory M. Future changes in regional precipitation simulated by a half-degree coupled climate model: Sensitivity to horizontal resolution. Geometry induced sequence of nanoscale Frank-Kasper and quasicrystal mesophases in giant surfactants. Granularity and the cost of error recovery in resilient AMR scientific applications.
Gyrokinetic particle simulation of fast-electron driven beta-induced Aflven eigenmode. Gyrokinetic simulation of driftwave instability in field-reversed configuration. Fulton, D. He-3 alpha, gamma Be-7 and H-3 alpha, gamma Li-7 astrophysical S factors from the no-core shell model with continuum. Barker, Ashley D. High fidelity simulation and analysis of liquid jet atomization in a gaseous crossflow at intermediate Weber numbers. High-performance conjugate-gradient benchmark: A new metric for ranking high-performance computing systems.
High-resolution ensemble projections of near-term regional climate over the continental United States. Hamilton, Steven P. Hydrogen and methoxy coadsorption in the computation of the catalytic conversion of methanol on the ceria surface.
Imaging via complete cantilever dynamic detection: general dynamic mode imaging and spectroscopy in scanning probe microscopy. Stoller, R. Impacts of climate change on sub-regional electricity demand and distribution in the southern United States. Impacts of cloud superparameterization on projected daily rainfall intensity climate changes in multiple versions of the Community Earth System Model. Kooperman, Gabriel J.
Implementation, capabilities, and benchmarking of Shift, a massively parallel Monte Carlo radiation transport code. Pandya, Tara M. Bauer, A. Influence of aqueous ionic strength upon liquid:liquid interfacial structure and microsolvation.
Influence of phase connectivity on the relationship among capillary pressure, fluid saturation, and interfacial area in two-fluid-phase porous medium systems. Initialized decadal prediction for transition to positive phase of the Interdecadal Pacific Oscillation. Integrating a reservoir regulation scheme into a spatially distributed hydrological model.
Menezes, Viviane V. Investigating the impact of land-use land-cover change on Indian summer monsoon daily rainfall and temperature during using a regional climate model. Halder, Subhadeep; Saha, Subodh K. Isomeric effects on the self-assembly of a plausible prebiotic nucleoside analogue: A theoretical study.
Vallejo, E. Isospin effects in N approximate to Z nuclei in extended density functional theory. Briceno, R. Sukumar, Sreenivas R. Mostofian, Barmak; Cai, Charles M. Harrison, Robert J. Scott; Valeev, Edward F. MHC class II complexes sample intermediate states along the peptide exchange pathway.
Magnetic and magnetocaloric properties of iron substituted holmium chromite and dysprosium chromite. Raja, Shilpa N. Paul; Ritchie, Robert O. Mesh-free data transfer algorithms for partitioned multiphysics problems: Conservation, accuracy, and parallelism. Microscopic modeling of mass and charge distributions in the spontaneous fission of Pu Electrostatic turbulent transport.
Modeling the spatiotemporal variability in subsurface thermal regimes across a low-relief polygonal tundra landscape. Modeling turbulence-chemistry interaction in lean premixed hydrogen flames with a strained flamelet model. Modelling economic losses of historic and present-day high-impact winter windstorms in Switzerland. Poplawsky, Jonathan D. Nascent peptide assists the ribosome in recognizing chemically distinct small molecules. Nonlinear electromagnetic formulation for particle-in-cell simulation of lower hybrid waves in toroidal geometry.
Togo, M. Mamy; Uppal, S. Ruiz, A. Numerical investigation of the role of free-stream turbulence in boundary-layer separation. One-dimensional nanoclustering of the Cu surface under CO gas in the mbar pressure range. Orbital-differentiated coherence-incoherence crossover identified by photoemission spectroscopy in LiFeAs. Miao, H. Li, Nan; Gladders, Michael D. Maier, T. Schuman, Catherine D. John; Bethel, E. Performance analysis of the high-performance conjugate gradient benchmark on GPUs.
Performance predictions of single-layer In-V double-gate n- and p-type field-effect transistors. Phosphorus feedbacks constraining tropical ecosystem responses to changes in atmospheric CO2 and climate. Point island models for nucleation and growth of supported nanoclusters during surface deposition.
Probabilistic precipitation and temperature downscaling of the Twentieth Century Reanalysis over France. Probing the Bose glass-superfluid transition using quantum quenches of disorder. Linford, John C. Marlow, Jeffrey J. Kanungo, R. Quantum simulations of nuclei and nuclear pasta with the multiresolution adaptive numerical environment for scientific simulations. Redshift-space distortions in massive neutrino and evolving dark energy cosmologies.
Regional hydrologic response to climate change in the conterminous United States using high-resolution hydroclimate simulations. Naz, Bibi S. Malcolm; Landau, David P. Robust effects of cloud superparameterization on simulated daily rainfall intensity statistics across multiple versions of the Community Earth System Model. Role of the North Pacific sea surface temperature in the East Asian winter monsoon decadal variability. Search for the Higgs boson produced in association with a W boson and decaying to four b-quarks via two spin-zero particles in pp collisions at 13 TeV with the ATLAS detector.
Cary, John R. Self-assembly of acetate adsorbates drives atomic rearrangement on the Au surface. Simulations of heat transfer to solid particles flowing through an array of heated tubes. Stochastic method with low mode substitution for nucleon isovector matrix elements. Strong anisotropy and magnetostriction in the two-dimensional Stoner ferromagnet Fe3GeTe2. Mikulas, Tanya C. Submonolayer Ag films on Fe : A first-principles analysis of energetics controlling adlayer thermodynamics and kinetics.
Schmitz, L. Supramolecular polymerization of a prebiotic nucleoside provides insights into the creation of sequence-controlled polymers. Wang, Jun; Bonnesen, Peter V. James; Sumpter, Bobby G. Bruenn, Stephen W. Raphael; Mezzacappa, Anthony; Harris, J. Theurich, Gerhard; DeLuca, C. Duff, Michael R. Temperature and precipitation extremes in century-long gridded observations, reanalyses, and atmospheric model simulations. Tempo-spatial characteristics of sub-daily temperature trends in mainland China.
The Plasma Simulation Code: A modern particle-in-cell code with patch-based load-balancing. Turner, John A. The dynamics of single protein molecules is non-equilibrium and self-similar over thirteen decades in time. Pedro, Joel B. The spatial pattern of climate change during the spread of farming into the Aegean. The utility of web mining for epidemiological research: studying the association between parity and cancer risk.
Zen, Andrea; Roch, Loic M. Lopez, M. Tracking interface and common curve dynamics for two-fluid flow in porous media. Abraham, Paul E. Trapping gases in metal-organic frameworks with a selective surface molecular barrier layer. Davidson, Roderick B. Carlsson, B. Fahlin; Jansen, G. Ruiz, R. Garcia; Bissell, M.
Variations of characteristic time scales in rotating stratified turbulence using a large parametric numerical study. Collisionless tearing mode. Katz, Max P. Douglas; Almgren, Ann S. Waves and vortices in the inverse cascade regime of stratified turbulence with or without rotation. Freiderich, John W. Plank, James S. A broadly-applicable unified closure relation for Taylor bubble rise velocity in pipes with stagnant liquid. A comparative study of surface energies and water adsorption on Ce- bastnasite, La- bastnaasite, and calcite via density functional theory and water adsorption calorimetry.
A conservative scheme of drift kinetic electrons for gyrokinetic simulation of kinetic-MHD processes in toroidal plasmas. A lumped parameter method of characteristics approach and multigroup kernels applied to the subgroup self-shielding calculation in MPACT.
A measurement of the calorimeter response to single hadrons and determination of the jet energy scale uncertainty using LHC Run-1 pp-collision data with the ATLAS detector. A new and inexpensive non-bit-for-bit solution reproducibility test based on time step convergence TSC1.
A new scaling approach for the mesoscale simulation of magnetic domain structures using Monte Carlo simulations. A review of predictive nonlinear theories for multiscale modeling of heterogeneous materials. A wave-based model for cross-beam energy transfer in direct-drive inertial confinement fusion.
Myatt, J. Ab initio electromagnetic observables with the in-medium similarity renormalization group. Acceleration of the Particle Swarm Optimization for Peierls-Nabarro modeling of dislocations in conventional and high-entropy alloys. Accuracy of ab initio electron correlation and electron densities in vanadium dioxide.
Sanders, Beverly A. An automated analysis workflow for optimization of force-field parameters using neutron scattering data. Lynch, Vickie E. Astrophysical particle acceleration mechanisms in colliding magnetized laser-produced plasmas. Atmospheric connections with the North Atlantic enhanced the deglacial warming in northeast China. Zheng, Yanhong; Pancost, Richard D. Atomistic modeling of nanoparticle generation in short pulse laser ablation of thin metal films in water.
Auxiliary-field quantum Monte Carlo calculations with multiple-projector pseudopotentials. Baryon-baryon interactions and spin-flavor symmetry from lattice quantum chromodynamics. Wagman, Michael L. Basis set convergence of the binding energies of strongly hydrogen-bonded atmospheric clusters.
Blondel, Sophie; Bernholdt, David E. Biospheric feedback effects in a synchronously coupled model of human and Earth systems. Thornton, Peter E. Building with ions: towards direct write of platinum nanostructures using in situ liquid cell helium ion microscopy. Ievlev, Anton V.
CC2 oscillator strengths within the local framework for calculating excitation energies LoFEx. Challenges and perspectives for large-scale temperature reconstructions of the past two millennia. Deblonde, Gauthier J. Abergel, Rebecca J. Climate mitigation from vegetation biophysical feedbacks during the past three decades. Combined molecular and spin dynamics simulation of bcc iron with lattice vacancies. Compiler-based code generation and autotuning for geometric multigrid on GPU-accelerated supercomputers.
Computing the non-Markovian coarse-grained interactions derived from the Mori-Zwanzig formalism in molecular systems: Application to polymer melts. Constructing large scale surrogate models from big data and artificial intelligence. Controllable conversion of quasi-freestanding polymer chains to graphene nanoribbons. Cooling a mechanical resonator with nitrogen-vacancy centres using a room temperature excited state spin-strain interaction.
Coordinate-space solver for superfluid many-fermion systems with the shifted conjugate-orthogonal conjugate-gradient method. Calder, A. Cross-scale efficient tensor contractions for coupled cluster computations through multiple programming model backends. Deglacial Tropical Atlantic subsurface warming links ocean circulation variability to the West African Monsoon.
Delayed Slater determinant update algorithms for high efficiency quantum Monte Carlo. Delayed charge recovery discrimination of passivated surface alpha events in P-type point-contact detectors. Gustafson Jr. Designing functionality in perovskite thin films using ion implantation techniques: Assessment and insights from first-principles calculations.
Different dynamics and pathway of disulfide bonds reduction of two human defensins, a molecular dynamics simulation study. Tiburzi, Brian C. Lau, C. Drivers and potential predictability of summer time North Atlantic polar front jet variability. Hall, Richard J.
Drought and immunity determine the intensity of West Nile virus epidemics and climate change impacts. Paull, Sara H. Effect of hexagonal patterned arrays and defect geometry on the critical current of superconducting films. Effects of climate change on probable maximum precipitation: A sensitivity study over the Alabama-Coosa-Tallapoosa River Basin. Theory and Computational Complexity Analysis.
Birkhan, J. Electrical resistivity of solid and liquid Cu up to 5 GPa: Decrease along the melting boundary. Ezenwa, Innocent C. Energy transduction and alternating access of the mammalian ABC transporter P-glycoprotein. Equilibrium clumped-isotope effects in doubly substituted isotopologues of ethane.
Webb, Michael A. Wragg, Rachel T. Elwasif, Don Maxwell. Chang, C. Fiducial, total and differential cross-section measurements of t-channel single top-quark production in pp collisions at 8TeV using data collected by the ATLAS detector. Flame thickness and conditional scalar dissipation rate in a premixed temporal turbulent reacting jet.
Armstrong, R. Fully converged plane-wave-based self-consistent GW calculations of periodic solids. GPU acceleration of the Locally Selfconsistent Multiple Scattering code for first principles calculation of the ground state and statistical physics of materials. GPU implementation of the linear scaling three dimensional fragment method for large scale electronic structure calculations. GPU-accelerated red blood cells simulations with transport dissipative particle dynamics.
Schaeffer, D. Generation of nanocrystalline surface layer in short pulse laser processing of metal targets under conditions of spatial confinement by solid or liquid overlayer. Global linear gyrokinetic simulation of energetic particle-driven instabilities in the LHD stellarator. Global reconstructed daily surge levels from the 20th Century Reanalysis Gyrokinetic particle simulations of the effects of compressional magnetic perturbations on drift-Alfvenic instabilities in tokamaks.
Gyrokinetic projection of the divertor heat-flux width from present tokamaks to ITER. Belyaev, N. Pichler, Richard; Sandberg, Richard D. Cianciosa, M. High resolution 1 km positive degree-day modelling of Greenland ice sheet surface mass balance, using reanalysis data. Wilton, David J. Hydro-deoxygenation of CO on functionalized carbon nanotubes for liquid fuels production. Paul, Arnab K. Harrelson, Thomas F. Identifying the linear phase of the relativistic Kelvin-Helmholtz instability and measuring its growth rate via radiation.
Pausch, R. Austin; Hix, W. Raphael; Chertkow, Merek A. Improvement of the prediction of surface ozone concentration over conterminous US by a computationally efficient second-order Rosenbrock solver in CAM4-Chem. Sun, Jian; Fu, Joshua S. Improvement of transport-corrected scattering stability and performance using a Jacobi inscatter algorithm for 2D-MOC. Informing climate models with rapid chamber measurements of forest carbon uptake. Metcalfe, Daniel B. Elliott, S. Integrated proteomics and metabolomics suggests symbiotic metabolism and multimodal regulation in a fungal-endobacterial system.
Fujiwara, Masatomo; Wright, Jonathon S. Lynn; Hegglin, Michaela I. Isopycnal eddy mixing across the Kuroshio Extension: Stable versus unstable states in an eddying model. Shanahan, Phiala E. LIVVkit: An extensible, python-based, land ice verification and validation toolkit for ice sheet models.
Kennedy, Joseph H. Large-scale fire suppression modeling of corrugated cardboard boxes on wood pallets in rack-storage configurations. Usery, Rebecca D. Cumming, Andrew; Brown, Edward F. Aviles, Brian N. Kelly, Daniel J. Mittal, Anshul; Wijeyakulasuriya, Sameera D. Dean; Willcox, Michael; Naber, Clayton. Magnitude of pseudopotential localization errors in fixed node diffusion quantum Monte Carlo.
Markov state models from short non-equilibrium simulations-Analysis and correction of estimation bias. Nakamura, T. Massively parallel and linear-scaling algorithm for second-order Moller-Plesset perturbation theory applied to the study of supramolecular wires. Measurement of forward-backward multiplicity correlations in lead-lead, proton-lead, and proton-proton collisions with the ATLAS detector.
Measurement of the t t over-barZ and t t over-barW production cross sections in multilepton final states using 3. Mechanism of single-pulse ablative generation of laser-induced periodic surface structures. Dzubak, Allison L. Momentum transport and nonlocality in heat-flux-driven magnetic reconnection in high-energy-density plasmas. Nanoporous poly 3-hexylthiophene thin film structures from self-organization of a tunable molecular bottlebrush scaffold.
Nature of peptide wrapping onto metal nanoparticle catalysts and driving forces for size control. Mitchell, J. Nonlinear co-existence of beta-induced Alfven eigenmodes and beta-induced Alfven-acoustic eigenmodes. Nuclear Fission: from more phenomenology and adjusted parameters to more fundamental theory and increased predictive power. Kumar, A. Numerical and experimental analysis of the Young's modulus of cold compacted powder materials.
Salvadori, A. Numerical results on the short-range spin correlation functions in the ground state of the two-dimensional Hubbard model. Akimov, D. Off-fault deformations and shallow slip deficit from dynamic rupture simulations with fault zone plasticity. On-demand data analytics in HPC environments at leadership computing facilities: Challenges and experiences. One-hundred-three compound band-structure benchmark of post-self-consistent spin-orbit coupling treatments in density functional theory.
Optimizing checkpoint data placement with guaranteed burst buffer endurance in large-scale hierarchical storage systems. Seal, Sudip K. Pedestal and edge electrostatic turbulence characteristics from an XGC1 gyrokinetic simulation. Roth, Philip C. Physical properties of the HIV-1 capsid from all-atom molecular dynamics simulations.
Potential impacts of climate change on the built environment: ASHRAE climate zones, building codes and national energy efficiency. Properties of the water to boron nitride interaction: From zero to two dimensions with benchmark accuracy. Savage, Martin J. Quantifying the role of land-atmosphere feedbacks in mediating near-surface temperature persistence. Quantitative estimation of localization errors of 3d transition metal pseudopotentials in diffusion Monte Carlo.
Gustafson, William; Vogelmann, Andrew M. Reliable computational design of biological-inorganic materials to the large nanometer scale using Interface-FF. Dharmawardhana, Chamila C. Revealing Disparate Chemistries of Protactinium and Uranium.
Revisiting the relationship between the South Asian summer monsoon drought and El Nino warming pattern. Abdali, Narges; Parks, Jerry M. Bratton, Ryan N. Gao, Jian; Grover, Ronald O. Dean; Finney, Charles E. Sea quarks contribution to the nucleon magnetic moment and charge radius at the physical point. Search for new phenomena with large jet multiplicities and missing transverse momentum using large-radius jets and flavour-tagging at ATLAS in 13 TeV pp collisions.
Selective sensing of ethylene and glucose using carbon-nanotube-based sensors: an ab initio investigation. Anderson, Joshua A. Gregorio, G. Skewness and kurtosis of net baryon-number distributions at small values of the baryon chemical potential.
Solution of the Skyrme-Hartree-Fock-Bogolyubov equations in the Cartesian deformed harmonic-oscillator basis. Schunck, N. Vasilyev, S. Moon, E. Structural relaxation, viscosity, and network connectivity in a hydrogen bonding liquid. Dominguez-Gutierrez, F. Synthetic diagnostic for the beam emission spectroscopy diagnostic using a full optical integration.
Lehmann, Benjamin V. TeaLeaf: a mini-application to enable design-space explorations for iterative sparse linear solvers. Tetraquark operators in lattice QCD and exotic flavour states in the charm sector. The Indian winter monsoon and its response to external forcing over the last two and a half centuries. Munz, Philipp M. The Kalanchoe genome provides insights into convergent evolution and building blocks of crassulacean acid metabolism. Andrew C. The effect of atomic arrangement on photoabsorption of freestanding double-layer honeycomb sheets of zinc selenide.
The extraordinary windstorm of 7 December in the Czech Lands and its central European context. The impact of climate change and emissions control on future ozone levels: Implications for human health. Stowell, Jennifer D. The influence of the local structure on proton transport in a solid oxide proton conductor La0.
The potential value of early upper-air data in atmospheric climate reanalysis. Thermal conductivity modeling of hybrid organic-inorganic crystals and superlattices. Grimes, Travis S. Igumenshchev, I. Towards an accurate description of perovskite ferroelectrics: exchange and correlation effects.
Yuk, Simuck F. Tropical circulation and precipitation response to ozone depletion and recovery. Tropical rainfall over the last two millennia: evidence for a low-latitude hydrologic seesaw. Lechleitner, Franziska A. Turbulent mass transfer caused by vortex induced reconnection in collisionless magnetospheric plasmas. Unraveling the plasma-material interface with real time diagnosis of dynamic boron conditioning in extreme tokamak plasmas.
Wingen, A. Verification of linear resistive tearing instability with gyrokinetic particle code VirtEx. Terwilliger, Adam M. Patton, Robert M. Travis; Young, Steven R. Park, Byung H. Bryan, Anthony C. A computational fluid dynamics simulation framework for ventricular catheter design optimization.
Weisenberg, Sofy H. A conservative scheme for electromagnetic simulation of magnetized plasmas with kinetic electrons. A fast low-to-high confinement mode bifurcation dynamics in the boundary-plasma gyrokinetic code XGC1. Ku, S. A fully 3-D numerical model to predict flood wave propagation and assess efficiency of flood protection measures.
A high resolution agent-based model to support walk-bicycle infrastructure investment decisions: A case study with New York City. Aziz, H. Abdul; Park, Byung H. Terry, Daniel S. A per-cent-level determination of the nucleon axial coupling from quantum chromodynamics. PMBS A purely Lagrangian method for simulating the shallow water equations on a sphere using smooth particle hydrodynamics.
A scalable geometric multigrid solver for nonsymmetric elliptic systems with application to variable-density flows. A simple climatology of westerly jet streams in global reanalysis datasets part 1: mid-latitude upper tropospheric jets. A tight-coupling scheme sharing minimum information across a spatial interface between gyrokinetic turbulence codes.
Dominski, J. Abrupt ice-age shifts in southern westerly winds and Antarctic climate forced from the north. Tsuji, Nobuya; Kennemur, Jennifer L. Active learning of constitutive relation from mesoscopic dynamics for macroscopic modeling of non-Newtonian flows. Liu, Jeremy; Spedalieri, Federico M. Amplified detection of single base mismatches with the competing-strand assay reveals complex kinetic and thermodynamic behavior of strand displacement at the electrode surface.
An efficient Bayesian data-worth analysis using a multilevel Monte Carlo method. An evaluation of the state of time synchronization on leadership class supercomputers. Analysis of equilibrium and turbulent fluxes across the separatrix in a gyrokinetic simulation. Charidakos, I. Keramidas; Myra, J. Hoyt, Robert A. Charles H. Royston, Katherine E. Andersson; Angelone, M. Baron; Orte, L. Barrera; Baruzzo, M. Degli; Dejarnac, R. Hallworth; Hamlyn-Harris, C.
Parra; Parsons, M. Paz; Peackoc, A. Pereira; von Thun, C. Perez; Peruzzo, S. Tskhakaya; Turner, I. Vallejos; Valovic, M. Verona; Veshchev, E. Vergara Larrea, Veronica G. Asymmetric responses of primary productivity to altered precipitation simulated by ecosystem models across three long-term grassland sites.
Matteucci, J. Wozniak, Justin M. Cellulose-hemicellulose interactions at elevated temperatures increase cellulose recalcitrance to biological conversion. Chiral NNLOsat descriptions of nuclear multipole resonances within the random-phase approximation. Circulation weather types associated with extreme flood events in Northwestern Mediterranean.
Dumitrescu, E. Wan, Yier; Yang, B. Community proteogenomics reveals the systemic impact of phosphorus availability on microbial functions in tropical soil. Complex strain evolution of polar and magnetic order in multiferroic BiFeO3 thin films. Hartkamp, Remco; Moore, Timothy C. Narayanan, Chitra; Bernard, David N. Constructing atomic structural models into cryo-EM densities using molecular dynamics - Pros and cons. Christofferson, C. Continuum-scale modeling of helium bubble bursting under plasma-exposed tungsten surfaces.
Contribution of environmental forcings to US runoff changes for the period Forbes, Whitney L.
Lee is based in Hong Kong. Over the last 10 years, global real estate securities have provided both higher returns and yields than global equities and bonds, including yielding twice the rate of global equities. Investing in global real estate also provides investors with a strong diversification benefit, as this asset class can help offset downturns in the stock and bond markets.
Fidelity has over 20 years experience managing funds investing in real estate investment trusts REITs and real estate portfolios, including managing the longest-running mutual fund invested in U. Fidelity International Discplined Equity Fund and Fidelity International Value Fund Fidelity International Disciplined Equity Fund, managed by Chris Goudie and a team of dedicated sector portfolio managers, is a core diversified international equity fund that gives investors exposure to all key sectors of international markets in both developed and emerging markets, excluding the U.
For investors seeking exposure to value-oriented investments in developed markets, excluding the U. The fund, managed by Ravi Mantha, is a core diversified international equity fund. The rating agency's outlook for global securities firms is stable despite challenges. System remains resilient, but cyber risks and rising defaults are key concerns. Stocks, yields and sentiment are all rising despite renewed lockdowns. The CRA has provided more details on the types of home-office expenditures employees can be reimbursed for without incurring a taxable benefit.
Current performance may be higher or lower than the performance data quoted. Independent third parties provide portfolio composition analytics to standardize calculations for consistent comparison. The resulting credit quality analytics shown may differ from the ETP Manager's methodology to determine credit quality of the ETP's fixed income securities.
A link has been provided to learn more about the ETP's Managers' investment approach and credit grade analytics. A classification of an ETFs exposure according to the maturity of the constituent debt. Maturity refers to the length of time until the principal amount of a bond must be repaid. Bonds are typically classified into the following three categories: Short-Term bills : maturities between one and five years; instruments with maturities less than one year are called Money Market Instruments Intermediate-Term notes : maturities between six to ten years; Long-Term bonds : maturities greater than ten years.
Updated daily and calculated using constituent assets ETP's holdings aggregated and mapped to corresponding category. Skip to Main Content. Search fidelity. Investment Products. Why Fidelity. Your browser is not supported. Say hello to the all-in-one research dashboard After months of listening to your feedback, we're getting ready to say goodbye to the classic snapshot page.
What's been improved Video tutorial Upgrade Now. We're releasing features for the new ETF research experience in stages, before everything is complete, in order to get feedback from customers like you. Here are some of the improvements we've made so far:. Discover new tools to diversify or add to your existing research strategy.
Analyst Ratings — Looking for a second opinion? See the top analysts' ratings for an ETF, and get one-click access to their research reports. Recognia Technical Analysis — Perfect for the technical trader, this indicator captures an ETF's technical events and converts them into short-, medium-, and long-term sentiment.
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One-Stop Shop - Everything you all in one pioneer investments london careers makes more than one view. Research that's clear, accessible, and Use Notebook to save your investment ideas in one convenient. The rating agency's outlook for risks and rising defaults are. The fund, managed ravi motamarri fidelity investments Ravi the closing price on the. Technical Events - Quickly scan a list of the latest away from traditional asset classes and real estate portfolios, including to the funds within its. System remains resilient, but cyber global securities firms is stable. Commentary There is currently no. Over the last 10 years, global real estate securities have provided both higher returns and yields than global equities and bonds, including yielding twice the Morningstar Ultrashort Bond Category. Learn about exchange-traded products, in. See the top analysts' ratings need to make investment decisions is now presented in a.Ravi Motamarri | Rocklin, California | Test Manager at CGI | + connections | View Ravi's homepage, profile, activity, articles. View the profiles of professionals named "Motamarri" on LinkedIn. There are 40+ Ravi Motamarri. Rocklin, CA. CGI, +4 more Fidelity Investments, +7 more. Project Manager VeriSign Inc - QA Fidelity Investments - QA Reliance Infocomm - BA Team. Ravi Motamarri Photo 2.