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  1. 13321

    Experiment Research of the Velocity Loss of Multi-wedge Belt Drive System by Ren Guoqiang, Huang Jiedong

    Published 2015-01-01
    “…Aiming at the problems of velocity loss of multi-wedge belt drive system in the process of operation,the multi-wedge belt drive speed loss test bench of two same size pulleys is established,the influences of the load torque,input speed,belt pre-tension,pulley diameter and belt length on belt velocity loss are obtained by using the multi-wedge belt drive test bench.The results show that increase the system load torque,reduce the input speed,belt pre-tension,pulley diameter and belt length,the multi-wedge belt drive velocity loss will be increased.The experimental study is conducted based on the multi-wedge belt drive system of key parameters,the influence of relevant parameters on system velocity loss is got,it can provide a certain reference for optimization design of the follow-up multi-wedge belt drive system.…”
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  2. 13322

    Effect of Pantograph’s Main Structure on the Contact Quality in High-Speed Railway by Jiangwen Wang, Guiming Mei

    Published 2021-01-01
    “…The objective is to investigate how the variations of the pantograph’s main structure influence the contact quality, which may support the structural design and parameter optimization of the pantograph in high-speed railway.…”
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  3. 13323

    Calculation of Effective Earth Radius and Point Refractivity Gradient in UAE by Abdulhadi Abu-Almal, Kifah Al-Ansari

    Published 2010-01-01
    “…The obtained values are used to investigate their impact on the design of microwave links. The cumulative distribution of the refractivity gradient in the first 65 meters above the ground surface, the monthly distribution for the median value of the k-factor, as well as their comparison with the ITU-maps are provided. …”
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  4. 13324

    METALLURGICAL EDUCATION IN CDIO IDEOLOGY by Natalya V. Gafurova, Svetlana I. Osipova

    Published 2022-05-01
    “…The authors define the factors that determine modernization of vocational education on a basis of the normative documents, national experience and international initiatives in the CDIO (Conceive – Design – Implement – Operate). The authors substantiate the system changes of vocational education that allow to implement competence-based approach and to create an innovative program, which deals with the crucial human and scientific problems through the integration of education, research and production activities in a public and private partnership.…”
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  5. 13325

    Improvement of the Turbine Main Stop Valves with Flow Simulation in Erosion by Solid Particle Impact CFD by Z. Mazur, G. Urquiza, R. Campos

    Published 2004-01-01
    “…For some of the most important geometric parameters of the MSVBV, design recommendation have been made.…”
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  6. 13326

    FATIGUE FRACTURE ANALYSIS OF BRASS OSCILLATOR WIRE OF VERTICAL LOG-PERIODIC ANTENNAZHENG DEZHI SONG ZONGFENG LIANG HANXIN by ZHENG DeZhi, SONG ZongFeng, LIANG HanXin

    Published 2021-01-01
    “…The main causes of fatigue damage are the tension adjustment of the antenna cable and the large local temperature difference,which results in the stress of the oscillator wire far exceeding the original design stress. According to the reason breakage of the brass oscillator wire,an improved scheme is proposed to meet the antenna requirements in this area.…”
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  7. 13327

    Censo 2020 – novas Macrorregiões, 50 anos depois by José Donizete Cazzolato

    Published 2020-06-01
    “…Territorial non-conformities in the current regional design are brought to light, and the advantages of the author’s proposal are demonstrated with the aid of maps—namely, assignment of Maranhão to the North Region and creation of a novel unit: the Northwest Region. …”
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  8. 13328

    Research on the programming language for proxy re-encryption by Mang SU, Yan YU, Bin WU, Anmin FU

    Published 2018-06-01
    “…The programming language for proxy re-encryption(PLPRE) based on domain specific language(DSL) was proposed,which was similar to the matical description and was adopt to describe the proxy re-encryption directly.The algorithm designer could describe the algorithm conveniently and quickly by PLPRE,and obtain the programming code for computer.Firstly,the grammar of PLPRE was presented,including the definitions of the keyword and programming logic,then the ACC-PRE algorithm was described by PLPRE as an example.Secondly,the PLPRE parser was realized by ANTLR.Finally,the comparisons between the PLPRE and the related work were made.By using the PLPRE,user does not need to pay attentions to data structure or memory allocation.It is suitable for the cryptography experts who is not familiar with the programming.Thus,PLPRE will decrease the deviation between the design and implement for PRE.…”
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  9. 13329

    Study on the Dynamics Virtual Simulation of the Transmission System of a Type Helicopter by Jiang Lingli, Hua Dengrong, Li Xuejun, Wang Ping

    Published 2016-01-01
    “…The research work can provides the model and theoretical basis for structure optimize design and analysis of fatigue and forecasting life of the helicopter transmission system.…”
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  10. 13330

    RELIABILITY ALLOCATION OF A ROTARY MACHINE BASED ON GREY EVALUATION THEORY by QIAN Yi, JIANG Chao, LI Nan, LI XinYe

    Published 2021-01-01
    “…A comprehensive reliability allocation method, which is applicable to the cases of lack of data in design stage, as well as the complexity of the influence factors and uncertainty of expert evaluation, is presented based on the grey system theory. …”
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  11. 13331

    An Approach to Increase Power-Added Efficiency in a 5 GHz Class E Power Amplifier in 0.18 µm CMOS Technology by Hemad Heidari Jobaneh

    Published 2023-01-01
    “…Plus, the output power of the PA is about 26 dBm when the DC voltage supply is 1.8 V. Advanced design system and TSMC 0.18 µm CMOS process are utilized to carry on the simulation.…”
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  12. 13332
  13. 13333

    Research of Cycloidal Pump for Hybrid Transmission(E-CVT) by Shi Chongshi, Yan Chenxi, Huang Mingyu, Ni Hongjun

    Published 2020-04-01
    “…The oil pump equipped with E-CVT has the function of providing cooling lubrication flow and brake flow.In order to study the use characteristics of cycloidal pump as the power source of E-CVT hydraulic system,the mathematical model is established based on theoretical analysis,and the multi-domain simulation model including signal domain,hydraulic domain and mechanical domain is built by AMESim platform.The model is verified by experimental data.Based on the simulation model,the effects of oil temperature,rotation speed and load pressure on volumetric efficiency and flow characteristics are dynamically studied.At the same time,the low oil temperature start failure of the oil pump in the E-CVT is predicted by the model connection filter,oil sump and pipeline,which provides a reference for the subsequent fuel pump motor related strategy design.…”
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  14. 13334

    The Establishment and Evaluation Method of Prefabricated Building Construction Quality Evaluation Index System Taking into Account Multimedia Sensor Network Nodes by Yankun Guo

    Published 2021-01-01
    “…According to the detailed design content of the prefabricated building construction stage, we construct the prefabricated construction quality evaluation index system, use the multimedia sensor network node method to obtain the weight of each evaluation index, comprehensively evaluate the construction quality of the prefabricated building, and finally show through the case analysis results that the multimedia sensor network node method can be of high practical value in the process of prefabricated building construction quality evaluation, and it has improved the domestic prefabricated building construction quality evaluation index system and evaluation quality and has certain reference value.…”
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  15. 13335

    Smart materials for NZEB buildings. Adaptive technological solutions for sustainable projects by Rosa Romano

    Published 2020-06-01
    “…The paper shows some of the results of the European research COST Action TU 1403 Adaptive Envelope, whose aim is to map technological innovation at an international level, linked to design and creation of adaptive façades systems, by analysing the subsystems that from the micro to the macro scale allow to reach and exceed the energy-environmental targets foreseen by the current national and international regulations. …”
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  16. 13336

    Permeable Pavement Systems: Technical Considerations by Eban Bean, Mark Clark, Barbra C, Larson

    Published 2019-04-01
    “…This new 8-page document provides technical details of permeable pavement systems, such as application, system elements, design, installation, operation, maintenance, crediting, and costs, in order to inform planners, engineers, landscape architects, local government officials, and other professionals in the built environment about the considerations for implementing and maintaining permeable pavements. …”
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  17. 13337

    The Role of Hypertext in Consumer Decision Making. The Case of Travel Destination Choice by Raúl Valdez Munoz

    Published 2012-01-01
    “…This study aims to offer insights into new areas for further research on tourism websites design, application and evaluation.…”
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  18. 13338

    Modeling and Contact Analysis of Circular-arc-tooth-trace Cylindrical Gear for Manufacture by You Yunxia, Hou Li, Yan Lili, Sun Zhijun

    Published 2015-01-01
    “…A modeling method for manufacture of circular-arc-tooth-trace(CATT) cylindrical gear is proposed by analyzing the generating theory and meshing principle of gear and rack.Based on the secondary development of UG software,the three-dimensional model of CATT cylindrical gear for manufacturing is established.The maximum contact stress of CATT cylindrical gear with different tooth line radius are analyzed under the same condition by using the method of finite element analysis.Reveal The influence of the tooth line radius on the contact line length and the maximum contact stress of CATT cylindrical gear and the influence law curve of the maximum contact stress are obtained,which provides the necessary theoretical basis for the design and engineering application of the CATT cylindrical gear.…”
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  19. 13339

    COMPILATION METHOD AND EXPERIMENTAL STUDY OF GRINDING MACHINE SPINDLE LOAD SPECTRUM by CHI YuLun, LI HaoLin

    Published 2017-01-01
    “…With high precision grinding technology development,the requirement for machine tool reliability is higher and higher.The load spectrum of grinding is key scientific basis of building the grinding machine spindle reliability experiment platform.Based on bearing ring machine tool grinding process,the load spectrum signal characteristic and processing method is studied through long time grinding spindle load measurement,recoding and analysis.Then,the compilation method is provided to get load spectrum.At last,the programmed load spectrum for "idle-grinding-idle"is drawn,which is consistent with real field load.It provide the loading condition and theory basis for grinding machine tool spindle reliability experiment,and also is very important to improve machine tool spindle design.…”
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  20. 13340

    Payload Mass Identification of a Single-Link Flexible Arm Moving under Gravity: An Algebraic Identification Approach by Juan Carlos Cambera, Andres San-Millan, Vicente Feliu-Batlle

    Published 2015-01-01
    “…Specifically, we follow a frequency domain design methodology to develop an algebraic identifier. …”
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