Showing 1,141 - 1,160 results of 46,768 for search '"designer"', query time: 0.12s Refine Results
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    Optimal Design and Acoustic Assessment of Low-Vibration Rotor Blades by G. Bernardini, E. Piccione, A. Anobile, J. Serafini, M. Gennaretti

    Published 2016-01-01
    “…An optimal procedure for the design of rotor blade that generates low vibratory hub loads in nonaxial flow conditions is presented and applied to a helicopter rotor in forward flight, a condition where vibrations and noise become severe. …”
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  7. 1147
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    The Design of a Semi-Prefabricated LVL-Concrete Composite Floor by David Yeoh, Massimo Fragiacomo

    Published 2012-01-01
    “…This paper describes the design of a novel semi-prefabricated LVL-concrete composite floor that has been developed in New Zealand. …”
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    Distance criterion-based quantizer design for cooperative spectrum sensing by Yuanhua FU, Zhiming HE

    Published 2018-09-01
    “…In terms of sensing node’s energy and reporting channel’s bandwidth constrains problem for cooperative spectrum sensing in cognitive radio networks,an optimal quantizer design method based on distance criterion was proposed.First of all,the Bhattacharyya distance of received quantized data at the fusion center (FC) was calculated as performance criteria,the optimization mathematical model of the quantizer was constructed,and the optimum quantization thresholds were obtained by using particle swarm optimization algorithm.According to received sensing nodes’ quantized data at the FC,a log-likelihood ratio detector was constructed to decide the presence or absence of primary user signal,the upper bound to sensing performance of energy detector that without quantization was derived.Compared with the existing methods in literatures,the performance of proposed 3-bit quantization method approaches to the upper bound performance of energy detector,under the premise of obtaining comparable detection performance,the requirement of communication bandwidth is reduced.…”
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  12. 1152

    Design of tree topology based Byzantine fault tolerance system by Wei-dong LYU, Xue-guang ZHOU, Zhi-min YUAN

    Published 2017-11-01
    “…A tree topology based Byzantine fault tolerance system was designed and the calculation of the Byzantine node bound based on depth and width was given.The consistency protocol was designed through divide the tree into groups by communication and work,which guaranteed the safety of system.The access of a node was determined with joint signature mechanism.The Byzantine nodes were placed to the leaves by view change protocol,which guaranteed the liveness of the system.On the foundation of traditional protocol,the new protocol support multiple tasks operating at the same time,and communication between nodes is largely decreased,as well as the space complexity,hence the feasibility being promoted,and the gap between Byzantine fault tolerance system and the non-Byzantine systems being narrowed.…”
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    Structure Design of a New Type of Automatic Folding Stage by Sun Jianghong, Niu Xiaohui, Liu Xu

    Published 2016-01-01
    “…Aiming at the traditional stage is not easy to be moved or folded and some space is wasted,a new type of automatic folding stage is designed to make full use of the same space. The overall structure and the working principle of the stage are introduced,and the specific structure and principle of some mechanisms are described in detail,the statics analysis,kinematics analysis and dynamics analysis are carried out,the design basis is indicated. …”
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  16. 1156

    Design and Analysis of Deformable Wheeled Climbing Obstacle-surmounting Robot by Wei Junying, Yuan Yuan, Fan Zhaojian

    Published 2018-01-01
    “…In view of the difficult problem of robotic climbing,a new mobile system design plan of deformable wheel climbing obstacle-surmounting robot is proposed. …”
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  17. 1157

    Design Tools for Bolted End-Plate Beam-to-Column Joints by Giusy Terracciano, Gaetano Della Corte, Gianmaria Di Lorenzo, Raffaele Landolfo

    Published 2018-01-01
    “…They are easy and quick tools to be used in the first phases of the design process, in order to identify joint configurations and geometrical properties satisfying specified joint structural performances. …”
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    Reliability Optimization Design of Rail-roader Electric Wheel Reducer by Yi Chengshan, Liu Yanhu, Cun Ligang, Sun Yunqi

    Published 2015-01-01
    “…From the perspective of the optimization design of rail-roader electric wheel,according to the working condition and load conditions of planetary gear,taking the volume,contact ratio,efficiency of NGW planetary gear transmission as the target function,optimization design of gear reducer is carried out based on the theory of reliability.The reliability of gear fatigue strength is combined within the constraint of optimization problem,the optimization parameters such as the minimum volume and quality of the machinery parts and components are obtained,the transmission efficiency remain before optimization level.By the optimization design of planetary gear reducer,the special requirements of rail-roader electric wheel are fulfilled.The reference forthe design of rail-roader provided.…”
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    Design and Optimization of Fresnel Lens for High Concentration Photovoltaic System by Lei Jing, Hua Liu, Yao Wang, Wenbin Xu, Hongxin Zhang, Zhenwu Lu

    Published 2014-01-01
    “…A practical optimization design is proposed, in which the solar direct light spectrum and multijunction cell response range are taken into account in combination, particularly for the Fresnel concentrators with a high concentration and a small aspect ratio. …”
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