Showing 6,421 - 6,440 results of 10,931 for search '"software"', query time: 0.09s Refine Results
  1. 6421

    Influence of Axle Load on the Wear of Railway Wheel Material by Hewan Getachew Yenealem, Daniel T. Redda, Awel Mohammedseid

    Published 2023-01-01
    “…Two kinds of rail and wheel steels have been studied against different axle load steps, simulating them for wear performance analysis using multibody simulation software (SIMPACK) and MATLAB programming. The simulation model results are validated against the vehicle’s specifications and wear depth measured on Ethiopia—Addis Ababa Light Rail Transit (LRT), and experimental results from the literature. …”
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  2. 6422

    Study on Optimization of Grouting Curtain Design of Damsin Karst Areas Based on Response Surface Methodology by XIE Mengshan, CAO Lei, GUO Xiaojing, LIU Xu, ZHANG Cong, JIANG Maiyong, LI Jinyou

    Published 2023-01-01
    “…Curtain grouting is an effective measure to solve the seepage problem of dams in karst areas.In order to optimize the grouting curtain design of dams in karst areas and effectively control the seepage flow and pressure of the dam foundation,a curtain service model of dams in karst areas is firstly built by using multi-field coupling software,and the evaluation standard of curtain service performance of dams in karst areas is put forward.Secondly,based on experimental design of Box-Behnken response surface,a regression model among curtain permeability coefficient,curtain height,curtain width,and Ca(OH)<sub>2</sub> dissolution rate in the curtain body in karst areas is established.Finally,according to the fmincon function in Matlab,a model for optimizing design parameters of grouting curtain in karst areas is established,and the optimal combination of design parameters of curtain of a dangerous dam in the karst area is solved by taking the minimum curtain grouting amount as the optimization principle under the condition of satisfying the curtain service performance.The results show that the curtain permeability coefficient is the most important factor affecting the Ca(OH)<sub>2</sub> dissolution rate in the dam curtain in karst areas,followed by the curtain height and width.In view of the safety and economic requirements of the project,it is suggested that the curtain height of 15.80 m and the curtain width of 4.51 m should be adopted in the curtain design of the dam in the karst area.The research results can provide a reference for evaluating the service performance of dam curtain in karst areas and offer a new idea for optimizing the design of grouting curtain of dams in karst areas.…”
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  3. 6423

    Research on the Influence of Moisture Condition on the Mechanical Properties and Microstructure of Sandstone by Zuosen. Luo, Zuoxiang. Zhu, Hao Bai, Daxiang Liu, Qiancheng. Sun

    Published 2021-01-01
    “…The results show that, with the increase of water content, the macromechanical parameters of sandstone gradually decrease, and the fine and microstructure characteristics are characterized by the gradual increase in the number of pores and the gradual increase in pore size. Based on the PFC2D software, considering the weakening effect of water on the partial cementation from a mesoscopic point of view, it is proposed to use soft and hard contacts to simulate the changes in the degree of cementation between particles under different water-bearing conditions and to study the impact of sandstone micromechanical parameters with changes in water content. …”
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  4. 6424

    Faster model-based estimation of ancestry proportions by Santander, Cindy G., Refoyo Martinez, Alba, Meisner, Jonas

    Published 2024-12-01
    “…Ancestry estimation from genotype data in unrelated individuals has become an essential tool in population and medical genetics to understand demographic population histories and to model or correct for population structure. The ADMIXTURE software is a widely used model-based approach to account for population stratification, however, it struggles with convergence issues and does not scale to modern human datasets or the large number of variants in whole-genome sequencing data. …”
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  5. 6425

    Dynamic Simulation of a Warship Control Valve Based on a Mechanical-Electric-Fluid Cosimulation Model by Jiazhen Han, Yudong Xie, Yong Wang, Qixian Wang

    Published 2021-01-01
    “…Compared with the pure software simulations, the unsteady flow characteristics and dynamic response of the actuator were synchronously obtained in this study, which accurately captured the sudden fluid loads required for further compensation. …”
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  6. 6426

    Influence of flood control structures on the water level in the downstream of the Saigon – Dong Nai river system by I. M. Markova, Phan Khanh Khanh

    Published 2023-09-01
    “…To assess the impact of upstream reservoirs and flood control structures on the water level in the lower reaches of the SG – DN river, hydrological data of the river network were collected and a hydraulic model was developed based on a digital elevation model (DEM) using the software package Mike 11, Mike 21 and Mike Flood.Results. …”
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  7. 6427

    Orthogonal Analysis and Numerical Simulation of Rock Mechanics Parameters in Stress Field of Shaft Heading Face by Liyun Yang, Siyu Chen, Pengxiang Dong, Qingcheng Wang, Chen Huang

    Published 2020-01-01
    “…This paper focuses on improving the blasting effect of the drilling and blasting method in the deep rock mass and solves the problems of blasthole collapse and misfire accident in the process of drilling and blasting construction of heading face. FEM software, ABAQUS, is used to simulate the stress distribution around the blasthole by extending a certain depth in the vertical direction of the shaft heading face. …”
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  8. 6428

    A System Review: Effect of Robot-assisted Training on Improvement of Lower Extremities Function of Stroke Patients in Early Rehabilitation by Xuejing LI, Jiajia WU, Tao YE, Qiang TANG

    Published 2018-04-01
    “…Meta-analysis was performed by using RevMan 5.3 software.Results:Five trials involving four Chinese literatures and one English literature were enrolled in this Meta-analysis. …”
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  9. 6429

    Thermal Environment inside a Tunnel after Thermobaric Explosion by Fei Chen, Jinfeng Mao, Jin Zhou, Pumin Hou, Liyao Liu, Shangyuan Chen

    Published 2017-01-01
    “…In order to investigate the thermal environment inside a tunnel after thermobaric explosion, we developed a damage evaluation method for the thermal radiation of explosion fireballs in tunnels; secondly, the air temperature distribution inside a tunnel shortly after explosion was theoretically analyzed; finally, the dynamic thermal environment after the explosion and the influences of TBXs mass and initial ground temperature on it in cases of open and blocked tunnels were numerically simulated with the FLUENT software. The results show that the fireball thermal radiation damage occurs mainly in the vicinity of the explosion source. …”
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  10. 6430

    MEDIATING ROLE OF UNEMPLOYMENT ANXIETY IN THE RELATIONSHIP BETWEEN GENERAL SELF-EFFICACY AND JOB SEARCHING COMPETENCE LEVEL by Özlem Karadağ Ak, Aslan Şendoğdu, Ayşe Elif Yazgan

    Published 2022-11-01
    “…The research population consists of 328 graduate students. SPSS package software was used during the phase of data analysis. …”
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  11. 6431

    Investigating the Effect of Ear Canal Length on Improving Earplugs and Earmuffs Performance at 400 and 500 Hz Frequencies by Hossein Ebrahimi, Farhad Forouharmajd, Siamak Pourabdian, Kamyar Nazaryan

    Published 2024-12-01
    “…Two types of earplugs and two types of earmuffs were tested. Using LABVIEW software, sound at 400 Hz and 500 Hz frequencies was generated by an ev-av150e sound generator at an 80 dB sound pressure level (weight A) with pink noise through a desktop speaker. …”
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  12. 6432

    Knowledge, attitudes, and perceptions of healthcare students and professionals on the use of artificial intelligence in healthcare in Pakistan. by Muhammad Mustafa Habib, Zahra Hoodbhoy, M A Rehman Siddiqui

    Published 2024-05-01
    “…We analyzed the data using Statistical Package for Social Sciences (SPSS) statistical software, version 26.0. Overall, 616 individuals responded to the survey while n = 610 (99.0%) of respondents consented to participate. …”
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  13. 6433

    Assessing citizens\' satisfaction from urban management performance in the field of urban servicesCase study: City of Farouj by mohammad motamedi, seyedhassan rasouli, mohammad nasiri

    Published 2019-12-01
    “…In the next step, 380 questionnaires were completely and correctly collected and entered into SPSS software. Finally, the results of the study were analyzed by statistical tests. …”
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  14. 6434

    Academic Debt in Higher Education: An Analysis of the Causes and Opportunities to Overcome by Yu. S. Ezrokh, A. M. Kashirina

    Published 2023-01-01
    “…Analytics and visualization of quantitative data were carried out using MS PowerBI software. Research results. It was revealed that: a) high incoming scores do not guarantee trouble-free education at the university; b) students with low scores (but not less than 160–170) are also able to master quite complicated university programs; c) the presence of academic debts does not depend on the type of disciplines studied (economics / information technology). …”
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  15. 6435

    Predicting the Quality of Marital Life: The Role of Mindfulness and Spiritual Experiences by Abdolreza Afzood, Abolfazl Bakhshipour, Meysam Sadeghi

    Published 2024-11-01
    “…Data analysis was conducted using Mean±SD, Pearson correlation and multiple regression with SPSS software, version 22. Results: The results showed a direct and significant relationship between mindfulness (r=0.48) and spiritual experiences (r=0.57) with the quality of marital life (P<0.01). …”
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  16. 6436

    Gaining Surgical Access for Repositioning the Inferior Alveolar Neurovascular Bundle by Saif Yousif Abdullah Al-Siweedi, P. Nambiar, P. Shanmuhasuntharam, W. C. Ngeow

    Published 2014-01-01
    “…Scanned CBCT (i-CAT machine) data of sixty patients and reconstructions performed using the SimPlant dental implant software were reviewed. Outcome variables were the linear distances of the mandibular canal to the inferior border and the buccal cortex of the mandible, measured immediately at the mental foramen (D1) and at 10, 20, 30, and 40 mm (D2–D5) distal to it. …”
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  17. 6437

    Analysis of the Deformation Characteristics and Formation Mechanism of Reservoir Landslides under Rainfall Conditions by DOU Sijun, XU Xingqian, LI Jiguo, LING Huikun, ZHOU Shasha

    Published 2020-01-01
    “…Hexi reservoir landslide is located in Tianyuan Town,Changning County,Baoshan City,Yunnan Province.There are obvious tensile cracks,fault,bank slope retaining wall and cut-off ditch crack deformation at its rear edge,which bring a serious threat to the safety of spillways and dam body.Based on the basic morphological features and geological environment conditions of the landslide,combined with the geological survey data,this paper analyzes the deformation characteristics and induced factors of the landslide and judges the landslide as a large-scale thick-layer traction-pushing bedding landslide,simulates the change of slope pore water pressure and safety coefficient under the conditions of different rainfall intensity and reservoir water level change by Geo-Studio numerical software,and analyzes &amp; evaluates its stability.The results show that:Under continuous rainfall,the reservoir water level rises,the front edge of the slope body softens,the pressure of pore water in the slope body increases,the natural discharge effect produces,and the sliding force increases,which aggravate the deformation,failure and destabilization of slope body.In the process of the sudden drop of reservoir water level,the backpressure effect of the reservoir water is weakened,and the water penetration of the pre-slope body produces the dynamic water pressure,which is more likely to lead to the occurrence of such landslides.The steep slope terrain and bedding structure of downward rock formation in the landslide area create favorable conditions for the development of the landslide,and thecontinuous rainfall is the main factor of the landslide.The joint cutting slope and backpressure anti-slip pile is an effective means to prevent and control the landslide.The results can serve as theoretical reference for the analysis,judgment and timely prevention of similar landslides in daily operation and management of reservoir.…”
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  18. 6438

    INFLUENCE OF DIFFERENT IMPACT VELOCITY ON OCCUPANT HEAD INJURYUNDER HORIZONTAL IMPACT by ZHU XianFei, FENG YunWen, XUE XiaoFeng, ZHU ZhengZheng

    Published 2020-01-01
    “…In order to investigate the influences of different impact velocity on the occupant ’s head injury under horizontal impact conditions,a comprehensive evaluation method based on occupant ’s Abbreviated Injury Scale( AIS) and occupant’s injury risk probability to evaluate occupant injury is proposed,and a dynamic simulation model which including seat,restraint system and dummy was constructed by LS-Dyna software. Take the typical civil aircraft double-tube triple-seat as research objects,the effects of different horizontal impact velocity( 8. 0 m/s,10. 0 m/s,12. 0 m/s,14. 0 m/s,16. 0 m/s) on the head injury of occupants,the stages and characteristics of injuries were analyzed. …”
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  19. 6439

    Thresholds of Abnormality Perception in Facial Esthetics among Laypersons and Dental Professionals: Profile Esthetics by Raed H. Alrbata, Ayham Kh. Alfaqih, Mohammad R. Almhaidat, Ahmad M. Al-Tarawneh

    Published 2020-01-01
    “…Using photo editing software, a baseline profile image of a young male was manipulated on a 2 mm incremental basis to move each of the upper and lower jaws backward and forward relative to true vertical line (TVL) at which four variables of maxillary and mandibular retrusion and protrusion were researched. …”
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  20. 6440

    Nonlocal Modeling of Superelastic Behavior in Thin Plate with Central Hole Shape Memory Alloys Under Mechanical Loads by Mohammed Saad Qasim

    Published 2024-12-01
    “…One of the outcomes of this study is introducing a specific finite detail model in the Abaqus R software program, wherein the nonlocal variable works as an extra degree of freedom. …”
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