Showing 601 - 620 results of 775 for search '"Numerical analysis"', query time: 0.07s Refine Results
  1. 601

    Simulation of structured populations in chemically stressed environments by Thomas G. Hallam, Qingping Deng

    Published 2005-10-01
    “…We develop a mathematical model, the numerical analysis for this model, and the simulation techniques necessary to solve the problem of population dynamics in an environment where heterogeneity is generated by resource and chemical stressor. …”
    Get full text
    Article
  2. 602

    Shaking Table Test Investigation on Seismic Performance of Joint Model of Immersed Tunnel by Xueming Zhang, Linlin Song, Hongjuan Chen, Shicai Chen, Zhinan Hu, Yong Li

    Published 2022-01-01
    “…The simplified model was established in ABAQUS for numerical analysis. The soil around the tunnel was simplified as spring-damper, the tunnel was simplified as beam element, and the joint was simulated by nonlinear spring. …”
    Get full text
    Article
  3. 603

    Difference Analysis of Wave Disaster Characteristics Induced by Landslides of Different Water Entry Scales by WANG Lei, XIE Mingli, HUANG Huibao, KE Hu, GAO Qiang

    Published 2024-01-01
    “…This paper conducts a three-dimensional numerical analysis on the surges generated by landslides of different water entry scales,and analyzes the characteristics of surge disasters induced by landslides of different water entry scales, such as surge height, surge speed,and bank climbing height.Meanwhile,the impact of surges caused by landslides of different water entry scales on the dam is explored.The FLOW-3D numerical simulation method is employed to simulate and analyze the entire process of landslide instability,surge formation and propagation,surge climbing,and surge backflow.The results show that the maximum climbing height of the surge generated by the 3.1 million m<sup>3</sup> landslide of water entry is 54.5 m on the opposite bank,and the surge height in front of the dam is 6.69 m.The surge has a small area of overflow at the right bank dam shoulder.The surge generated by the 0.8 million m<sup>3</sup> landslide of water entry has a maximum climbing height of 26.00 m on the opposite bank,and the surge height in front of the dam is 5.38 m,without influence exerted by the surge on the dam safety.The results indicate that the induced surge caused by 3.1×10<sup>6</sup> m<sup>3</sup> landslide of water entry is more catastrophic than that brought by 0.8×10<sup>6</sup> m<sup>3</sup> landslide of water entry.…”
    Get full text
    Article
  4. 604

    Study on the Instability Mechanism and Grouting Reinforcement Repair of Large-Scale Underground Stopes by Chengyu Xie, Nan Jia, Liwen He

    Published 2020-01-01
    “…The environmental conditions due to unreasonable mining in underground stopes, the slurry diffusion mechanism in the grouting reinforcement of a stope within its influence, the causes of large-scale instability collapse, and the catastrophic stope process are analyzed, and limit upper line analysis theory and numerical analysis methods are comprehensively adopted, revealing the continuous catastrophic collapse mode of large-scale underground stopes. …”
    Get full text
    Article
  5. 605

    Study on Adiabatic Temperature Rise Reflecting Hydration Degree of Concrete by Yanhua Han, Shaojun Fu, Shufa Wang, Zuowei Xie

    Published 2018-01-01
    “…By comparing simulated temperatures with various measured results, it can be found that the numerical analysis results of parameters calculated by BP neural network are closest to the measured values in the whole curing ages. …”
    Get full text
    Article
  6. 606

    Development of a Hybridized Model for Predicting the Life Span of Power Transformers by O.O. Olaluwoye, A.A. Okubanjo, O.K. Oyetola, P.O. Alao, O.G. Olasunkanmi

    Published 2019-08-01
    “…These parameters were used in developing a DP model using Jacobi and Gauss Seidel numerical analysis iterative techniques. The techniques were implemented in Matrix Laboratory 8.2 (R2013b)  environment. …”
    Get full text
    Article
  7. 607

    Outbreak conditions and impacts of parasites in copepod populations by Even Sletteng Garvang, Lasse Krøger Eliassen, Josefin Titelman, Tom Andersen

    Published 2024-12-01
    “…The ability of parasites to invade host populations largely depended on traits of free‐living spores and host density. From numerical analysis, we found that the parasite typically induced oscillations in the host population. …”
    Get full text
    Article
  8. 608

    Mechanism of Roadway Floor Heave Controlled by Floor Corner Pile in Deep Roadway under High Horizontal Stress by Xinchao Kang, Dongming Guo, Zhiying Lu

    Published 2021-01-01
    “…Based on the solution of the slip line field under plane strain condition, the mechanical model of the slip-type floor heave is established, and the formula for calculating the critical failure depth of the roadway floor and the minimum support depth of the corner pile is derived. Through numerical analysis and similar model tests, the deformation and stress distribution of surrounding rock under the support of the corner piles are studied, and the force law of the pile under high horizontal stress is analyzed. …”
    Get full text
    Article
  9. 609

    Stability Control of Multilayer Roof Strata in the Large Mining Height Gob-Side Entry: A Case Study by Yong Chen, Yingpeng Wang, Zhengyuan Qin, Feng Yang, Vivek Agarwal

    Published 2024-12-01
    “…Through mechanical analysis, the strata movement of a multilayer roof structure was investigated, and numerical analysis was conducted to identify key aspects of the supporting scheme, e.g., ensuring the stability of immediate roof above the filling area, transferring the resistance from the cemented backfill to the roof structure and maintaining self-supporting capacity. …”
    Get full text
    Article
  10. 610

    Formation Mechanism and Stability Analysis of the Hejia Landslide by Hao Zhang, Zaiqiang Hu, Xingzhou Chen, Hongru Li

    Published 2021-01-01
    “…Through field investigation and analysis of regional geological conditions, it is concluded that Hejia landslide is a large-scale landslide, through long-term sliding-bending deformation; it is generated from the external hard rock with thick layers and sliding zone for layered soft rock; the formation mechanism of landslide is as follows: (1) high-steep and hard-soft layered slope is the slope structure condition that caused the large landslide; (2) the existence of thick soft rock belt provides material conditions for the formation of slip surface; (3) certain air conditions provide displacement space for the separation and disintegration of the sliding body, and the landslide is stable at present. Numerical analysis results show that reservoir impoundment will adversely affect the stability of landslide. …”
    Get full text
    Article
  11. 611

    Analysis of the Seismic Performance of a Two-Span Specially Shaped Column Frame by Zhen-chao Teng, Tian-jia Zhao, Yu Liu

    Published 2019-01-01
    “…The effects of concrete strength, reinforcement ratio, and axial compression ratio on the seismic performance of the building incorporating such columns were studied. The numerical analysis was performed for a ten-frame structure with specially shaped columns under low reversed cyclic loading. …”
    Get full text
    Article
  12. 612

    Development of a Hybridized Model for Predicting the Life Span of Power Transformers by O.O. Olaluwoye, A.A. Okubanjo, O.K. Oyetola, P.O. Alao, O.G. Olasunkanmi

    Published 2019-08-01
    “…These parameters were used in developing a DP model using Jacobi and Gauss Seidel numerical analysis iterative techniques. The techniques were implemented in Matrix Laboratory 8.2 (R2013b)  environment. …”
    Get full text
    Article
  13. 613

    Analyses of the Design of Multirows Vaneless Staggered Counter-Rotating Turbine by Zhongye Wu, Yukun Zhang, Qingfen Ma, Jingru Li

    Published 2022-01-01
    “…In order to verify the design method, two-dimensional throughflow design, blade design, and three-dimensional numerical analysis are performed. Expansion ratios and efficiency at the speed combinations of the 80% to 105% are discussed to reveal the turbine characteristics at off-design conditions. …”
    Get full text
    Article
  14. 614

    Bionic Design of Wind Turbine Blade Based on Long-Eared Owl’s Airfoil by Weijun Tian, Zhen Yang, Qi Zhang, Jiyue Wang, Ming Li, Yi Ma, Qian Cong

    Published 2017-01-01
    “…Glauert Model was adopted to design the standard blade and the bionic blade, respectively. Numerical analysis method was utilized to study the aerodynamic characteristics of the airfoils as well as the blades. …”
    Get full text
    Article
  15. 615

    A Comprehensive Availability Modeling and Analysis of a Virtualized Servers System Using Stochastic Reward Nets by Tuan Anh Nguyen, Dong Seong Kim, Jong Sou Park

    Published 2014-01-01
    “…., between physical host failure and VMM, etc.) in a virtualized servers system. We also show numerical analysis on steady state availability, downtime in hours per year, transaction loss, and sensitivity analysis. …”
    Get full text
    Article
  16. 616

    Fano resonated, ultrathin, flexible and ultrawideband absorption featured nano-metaatom structure with dispersion gap optimized for optical range applications by Ahasanul Hoque, Mohammad Tariqul Islam, Ali F. Almutairi

    Published 2025-01-01
    “…The Finite Difference Time Domain (FDTD) method incorporated with CST microwave studio computational tool used for the entire analysis. Numerical analysis revealed that, on average 86.66% absorption achieved for 560 THz bandwidth peak absorption for the unit cell was 99.88% and the array shows 99.79%. …”
    Get full text
    Article
  17. 617

    Digital Twin-Based Modeling of Complex Systems for Smart Aging by Yiyi Deng

    Published 2022-01-01
    “…The validation results demonstrate the system’s excellence in information interaction, optimization of numerical analysis, and display of results for smart aging.…”
    Get full text
    Article
  18. 618

    A Time Scheduling Model of Logistics Service Supply Chain Based on the Customer Order Decoupling Point: A Perspective from the Constant Service Operation Time by Weihua Liu, Yi Yang, Haitao Xu, Xiaoyan Liu, Yijia Wang, Zhicheng Liang

    Published 2014-01-01
    “…Matlab 7.8 software is used in the numerical analysis for a specific example. Results show that the order completion time of the LSSC can be delayed or be ahead of schedule but cannot be infinitely advanced or infinitely delayed. …”
    Get full text
    Article
  19. 619

    Experimental and Numerical Evaluation of the Ablation Process of Carbon/Carbon Composites Using High Velocity Oxygen Fuel System by Xueling Fan, Peng Jiang, Biao Li, Xiaochao Jin, Yong Zhao

    Published 2017-01-01
    “…The microstructures of C/C composites were characterized and the numerical analysis was performed. Two typical ablation morphologies of the carbon fibers, which are drum-like and needle-like shapes, were observed depending on the alignments of fibers to the flame directions. …”
    Get full text
    Article
  20. 620

    Extended properties of nonlinear power system models that are symmetrically configured in the narrow sense by Elior Segev, Vladimir Zhuk, Elinor Ginzburg-Ganz, Juri Belikov, Yoash Levron

    Published 2025-03-01
    “…This property leads to dynamic models that are linear and time-invariant in the dq0 reference frame, or at least suitable for low-complexity numerical analysis, which is crucial when studying large-scale power systems. …”
    Get full text
    Article