On the Nature of Interplay among Major Flexibility Channels in Molecular Rotors by M. S. A. Abdel-Mottaleb

“…Furthermore, effects of molecular dynamic simulations on molecular properties in the femtosecond to picosecond time domain are studied to validate the results. …”
Get full text

Transport of Alzheimer's associated amyloid-β catalyzed by P-glycoprotein. by James W McCormick, Lauren McCormick, Gang Chen, Pia D Vogel, John G Wise

“…Here we use molecular dynamics (MD) simulations, transport substrate accumulation studies in cell culture, and biochemical activity assays to show that P-gp actively transports Aβ. …”
Get full text

Studying the Simultaneous Effect of Autonomous Vehicles and Distracted Driving on Safety at Unsignalized Intersections by Mohammad Khashayarfard, Habibollah Nassiri

“…This factor can be estimated using driving simulators. In this paper, five different scenarios were defined for simulation, in addition to the primary state, according to the different market penetration rates of AVs in Vissim. …”
Get full text

A Rumor Spreading Model considering the Cumulative Effects of Memory by Yi Zhang, Jiuping Xu

“…Further, rumor spreading model simulations are conducted with different parameters in three artificial networks. …”
Get full text

Observations on Harmonics Summation in Transmission Systems: Alternative Aggregation Estimation by Rafael S. Salles, Maise N. S. Silva, Paulo F. Ribeiro

“…The software MATLAB/Simulink performs simulation and analysis. Finally, the work discusses the findings.…”
Get full text

Performance analysis of 60 GHz pulse multiuser communication system based on cross-layer strategy by Xuehua LI, Chen SHEN, Yuanyuan YAO

“…Due to the advantages of license-free,strong directionality,high system capacity,and high transmission rate of Gbit/s,60 GHz band is listed as one of the candidate bands for new radios (new radio).In 5G ultra-dense networking scenario,the randomness of node switching caused by the decrease of the distance between network nodes may cause severe multiple access interference and resource mismatch problems.In this regard,based on the concept of cross-layer collaborative design,a resource scheduling strategy based on fairness was proposed.The multiple access performance of the strategy was simulated in a 60 GHz pulsed wireless communication system based on TH-PAM (time hopping pulse amplitude modulation).Simulation results show that compared with the system with pure physical layer optimization algorithm,the multiple access system which adopts this strategy shows stronger fairness and lower system error rate,but it needs increase the transmission power to meet the requirements of the coverage of the equivalent communication system.That is,there is a certain trade-off between the energy and fairness of the system,which can be used to guide the structure and deployment of the actual communication system.…”
Get full text

Cause Analysis and Control Measures of Waterlogging in Shanghai Zoo Based on MIKE 21 by ZHOU Jing, WANG Huan

“…In order to analyze the cause of waterlogging after the drainage system of Shanghai Zoo reached the standard and explore the best control measures,data analysis and field investigation were carried out,and it was preliminarily determined that the waterlogging in the zoo was related to the poor drainage of the water system and the insufficient drainage pumping station.MIKE 21 was used to build a hydrodynamic model of the water system in the zoo,and the changes in the hydrological characteristic values of the water system under the current drainage condition were simulated and studied.It is concluded that the root cause of waterlogging in the zoo is that the drainage path is blocked,and the drainage pumping station has an insufficient scale and unreasonable layout.In order to promote drainage and remove waterlogging,the water system optimization and waterlogging facility renovation plans were proposed,and the engineering effect of each plan was simulated.Through the comparison of indicators such as drainage rate,drainage time,and maximum drainage time difference in different regions,the effect of each plan in promoting drainage and removing waterlogging was determined.In view of the engineering economy,the plan of expanding culverts and moving some culverts to the river was determined as the best,and the drainage layout was adjusted to achieve the best control effect under the specific investment.…”
Get full text

Natural Frequency Analysis of Permanent Magnet Eddy Current Couplings Based on the Riccati Transfer Matrix Method by Xu Chengxi, Wang Jian

“…On this basis, compare the analysis results with the accurate 3D finite element simulation results. The results show that this method can accurately analyze the natural frequency of permanent magnet eddy current couplings, and the error generated by high-precision simulation model analysis is not more than 8%. …”
Get full text

Formulation of the protein synthesis rate with sequence information by Wenjun Xia, Jinzhi Lei

“…Here, we investigate the kinetics of translation at the molecular level by a stochastic simulation model. The model explicitly includes RNA sequences, ribosome dynamics, the tRNA pool and biochemical reactions involved in the translation elongation. …”
Get full text

Alignment-induced self-organization of autonomously steering microswimmers: Turbulence, clusters, vortices, and jets by Segun Goh, Elmar Westphal, Roland G. Winkler, Gerhard Gompper

“…The simulations of the employed squirmer model reveal a distinct dependence on the type of microswimmer—puller or pusher—flow field. …”
Get full text

Photovoltaic MPPT control and improvement strategies considering environmental factors: based on PID-type sliding mode control and improved grey wolf optimization by Leijia Liu

“…An in-depth evaluation was conducted using simulation software based on MATLAB, and a practical testing platform was built accordingly. …”
Get full text

Kinematics Analysis of 1T3R Parallel Mechanism with Decoupling-reducing Structure based on Hybrid Drive by Guowang Chen, Li Du, Linxian Che, Junkun Hong, Mafei Bao

“…Based on the 3D motion simulation model, the angular velocity and angular acceleration curves of the mechanism are obtained.…”
Get full text

A Numerical Study on the Progressive Failure of 3D Four-Directional Braided Composites by Kun Xu

“…The numerical model can simulate the effect of damage accumulation on the tensile stress-strain curve by combining the proposed failure criteria and the stiffness degradation model. …”
Get full text

A New Method to Improve the Magnetic Gear Torque by Jing Libing, Zhang Ting, Lin Ying, Cheng Jia, Xie Lihui

“…The two dimensional（ 2 D） finite element（ FE） method is used to simulate the modified magnetic gear model,and the electromagnetic field and electromagnetic torque of the magnetic gear are calculated. …”
Get full text

Enhancing Scalability of Quantum Eigenvalue Transformation of Unitary Matrices for Ground State Preparation through Adaptive Finer Filtering by Erenay Karacan, Yanbin Chen, Christian B. Mendl

“…Hamiltonian simulation is a domain where quantum computers have the potential to outperform their classical counterparts. …”
Get full text

Study on the Influence of Axis Parallelism Error on Tooth Root Deformation Bending Stress by Yang Zhou, Jipeng Li, Guangwei Yang

“…Based on the allowable deflection of the inner and outer rings of the spherical roller bearing， a finite element model of gear contact with different degrees of axis offset is established， and dynamic simulation analysis is performed to obtain the tooth root strain and stress distribution curve during the meshing process. …”
Get full text

Energetics of substrate transport in proton-dependent oligopeptide transporters by Balaji Selvam, Nicole Chiang, Diwakar Shukla

“…Our simulations revealed conformational changes and key intermediate states involved in peptide translocation. …”
Get full text

APPLICATION OF MULTI-DEGREE-OF-FREEDOM SYSTEM IN VIBRATION ISOLATION DESIGN OF OPTOELECTRONIC POD by WANG PengPeng, JIA HongGuang, XUE ZhiPeng, LI Ming, GUAN YongLiang

“…The natural frequency of the isolation system was determined through multi-degree-of-freedom system vibration theory,instruct the design of spatial layout and relative positions,damping values and stiffness of isolators,and support structure. The simulation analysis of optical pod isolation system was conducted by using ADAMS/Vibration code module,the optical pod isolation system was tested on a vibration table,the experiment results of natural frequency were consistent with theoretical and simulation results,the error is less than 10%,and the isolation system has good vibration isolation performance near 92 Hz. …”
Get full text

Study of Shear Capacity of Jointed Rock Mass with Prestressed Anchor Bolt by Yufei Zhao, Hongtao Zhang, Yong Nie

Get full text

Analysis of Hot Spots in Watershed Runoff Generation and Concentration Based on Bibliometrics by HU Jinhui, SUN Yingna, WANG Ning, LI Zan

“…At present,the CiteSpace is rarely applied in the field of hydrology.Compared with other similar applications,this software can analyze data easily and generate visual map flexibly.Based on that,using CiteSpace to analyze the hot spots of watershed runoff generation and concentration can provide some references to scholars.Through the CNKI database,1 046 journals and academic papers from 1999 to 2020 are retrieved with “runoff generation and concentration”,“model” and “flood” as the subject terms.Based on the analysis functions of CNKI and CiteSpace,the results show that:among the Keyword co-occurrence map,the domestic hot spots in the field of watershed runoff generation and concentration include “Flood Forecast”,“Distributed Hydrological Model”,“Xin'an River Model”,“Urbanization”,“SWMM Model”,“Underlying Surface”,etc.By using the clustering function,the relevant research can be divided into “Flood Forecast”,“Control of Urban Flood”,“Geographic Information System”,and “Flood Disaster”.According to the clustering timeline diagram,“Simulation of Runoff Generation and Concentration in Hydrological Cycle” and “Simulation of Urban Flood Control Construction by Low-impact Development Concepts and SWMM Model” are current hot spots.Finally,detailed analysis related to those two hot spots are presented.…”
Get full text