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Liansuo AN , Zhi WANG , Zhonghe HAN ,
《能源前沿(英文)》 2009年 第3卷 第3期 页码 254-261 doi: 10.1007/s11708-009-0047-4
关键词: wet steam two-phase flow spontaneous condensation numerical simulation flow separation profile loss
《结构与土木工程前沿(英文)》 页码 1163-1187 doi: 10.1007/s11709-023-0987-5
关键词: cast-in anchor concrete cone capacity geopolymer concrete head size surface crack anchor profile
《工程管理前沿(英文)》 2021年 第8卷 第4期 页码 595-614 doi: 10.1007/s42524-021-0173-1
关键词: robust train speed profile percentile reliability model scenario-based position–time–speed network mixed-integer programming
Torsional behavior of triangular web profile (TRIWP) steel section by experimental study
Fatimah DE’NAN,Hazwani HASAN,Mohd Hanim OSMAN,Sariffudin SAAD
《结构与土木工程前沿(英文)》 2016年 第10卷 第4期 页码 409-419 doi: 10.1007/s11709-016-0358-6
关键词: corrugated web i-beam non uniform steel section torsion resistance torsion angle triangular web profile steel section
Multi-omics joint analysis revealed the metabolic profile of retroperitoneal liposarcoma
《医学前沿(英文)》 doi: 10.1007/s11684-023-1020-z
《能源前沿(英文)》 2023年 第17卷 第2期 页码 211-227 doi: 10.1007/s11708-022-0847-3
关键词: end-to-end learning microgrids voltage profile improvement generative adversarial network
《医学前沿(英文)》 doi: 10.1007/s11684-023-1006-x
关键词: neurodevelopmental disorder autosomal recessive intellectual disability consanguinity spastic paraplegia hearing loss TMEM141
New nonlinear stiffness actuator with predefined torque‒deflection profile
《机械工程前沿(英文)》 2023年 第18卷 第1期 doi: 10.1007/s11465-022-0721-3
关键词: compliant actuator nonlinear stiffness actuator nonlinear spring predefined torque−deflection profile
Walha LASSAAD, Tounsi MOHAMED, Driss YASSINE, Chaari FAKHER, Fakhfakh TAHER, Haddar MOHAMED
《机械工程前沿(英文)》 2013年 第8卷 第2期 页码 127-136 doi: 10.1007/s11465-013-0254-x
In this paper we investigate the nonlinear dynamic behaviour of a cam mechanism with oscillating roller follower in presence of defects. The nonlinear developed lumped-mass model includes eight degrees of freedom with two nonlinear hertzian contacts. The first one is located between cam and first roller while the second is between second roller and the sliding rod. The nonlinear dynamic behaviour is described by second order differential equations which are resolved by using the implicit Newmark algorithm combined with the Newton-Raphson iterative scheme. The influence of the cam profile error on the dynamic behaviour is also investigated.
关键词: cam nonlinear behaviour oscillating roller follower profile error
Power fluctuation and power loss of wind turbines due to wind shear and tower shadow
Binrong WEN, Sha WEI, Kexiang WEI, Wenxian YANG, Zhike PENG, Fulei CHU
《机械工程前沿(英文)》 2017年 第12卷 第3期 页码 321-332 doi: 10.1007/s11465-017-0434-1
The magnitude and stability of power output are two key indices of wind turbines. This study investigates the effects of wind shear and tower shadow on power output in terms of power fluctuation and power loss to estimate the capacity and quality of the power generated by a wind turbine. First, wind speed models, particularly the wind shear model and the tower shadow model, are described in detail. The widely accepted tower shadow model is modified in view of the cone-shaped towers of modern large-scale wind turbines. Power fluctuation and power loss due to wind shear and tower shadow are analyzed by performing theoretical calculations and case analysis within the framework of a modified version of blade element momentum theory. Results indicate that power fluctuation is mainly caused by tower shadow, whereas power loss is primarily induced by wind shear. Under steady wind conditions, power loss can be divided into wind farm loss and rotor loss. Wind farm loss is constant at 3α(3α−1)R2/(8H2). By contrast, rotor loss is strongly influenced by the wind turbine control strategies and wind speed. That is, when the wind speed is measured in a region where a variable-speed controller works, the rotor loss stabilizes around zero, but when the wind speed is measured in a region where the blade pitch controller works, the rotor loss increases as the wind speed intensifies. The results of this study can serve as a reference for accurate power estimation and strategy development to mitigate the fluctuations in aerodynamic loads and power output due to wind shear and tower shadow.
关键词: wind turbine wind shear tower shadow power fluctuation power loss
Turnover and loss of nitrogenous compounds during composting of food wastes
YANG Yanmei, ZHANG Xiangfeng, YANG Zhifeng, XI Beidou, LIU Hongliang
《环境科学与工程前沿(英文)》 2008年 第2卷 第2期 页码 251-256 doi: 10.1007/s11783-008-0042-8
Winner determination problem with loss-averse buyers in reverse auctions
Xiaohu QIAN, Min HUANG, Yangyang YU, Xingwei WANG
《工程管理前沿(英文)》 2017年 第4卷 第2期 页码 212-220 doi: 10.15302/J-FEM-2017019
关键词: reverse auction loss aversion winner determination improved ant colony algorithm
A novel energy loss model and optimization design of the coin chute flection curve
Qinghua LIANG, Jinqiu MO, Weizhong GUO
《机械工程前沿(英文)》 2012年 第7卷 第1期 页码 38-46 doi: 10.1007/s11465-012-0311-x
In this paper, we propose a novel design model based on the energy loss of the coin (ELM model) to optimize the flection curve, which is widely used in coin operated machines. Two different kinds of energy loss models are analyzed according to dynamic characteristics of the coin falling movement. The flection curve is constructed based on cubic quasi-uniform B-spline with the data points and end points derivatives as inputs, and the curve model is governed and affected by energy loss equations, allowing to minimize the total energy loss before the coin arrives at the detecting position, thus to reduce the energy loss and collisions between the coin and the flection, thus to improve the testing accuracy. A case study with a typical Chinese currency coin shows the effectiveness of the model using GA optimization toolbox.
关键词: flection curve B-spline energy loss model (ELM model) optimization design
TANG Zhongzhi, LI Junyao, YANG Jianhong
《医学前沿(英文)》 2008年 第2卷 第2期 页码 178-181 doi: 10.1007/s11684-008-0033-y
K Sathish KUMAR,S NAVEEN
《能源前沿(英文)》 2014年 第8卷 第4期 页码 434-442 doi: 10.1007/s11708-014-0313-y
关键词: distribution system reconfiguration (DFR) power loss reduction catfish particle swarm optimization (catfish PSO) radial structure
标题 作者 时间 类型 操作
Numerical study and control method of interaction of nucleation and boundary layer separation in condensing flow
Liansuo AN , Zhi WANG , Zhonghe HAN ,
期刊论文
Influence of surface cracking, anchor head profile, and anchor head size on cast-in headed anchors in
期刊论文
Robust energy-efficient train speed profile optimization in a scenario-based position–time–speed network
期刊论文
Torsional behavior of triangular web profile (TRIWP) steel section by experimental study
Fatimah DE’NAN,Hazwani HASAN,Mohd Hanim OSMAN,Sariffudin SAAD
期刊论文
Topology-independent end-to-end learning model for improving the voltage profile in microgrids-integrated
期刊论文
Panoramic variation analysis of a family with neurodevelopmental disorders caused by biallelic loss-of-function
期刊论文
Nonlinear dynamic behaviour of a cam mechanism with oscillating roller follower in presence of profile
Walha LASSAAD, Tounsi MOHAMED, Driss YASSINE, Chaari FAKHER, Fakhfakh TAHER, Haddar MOHAMED
期刊论文
Power fluctuation and power loss of wind turbines due to wind shear and tower shadow
Binrong WEN, Sha WEI, Kexiang WEI, Wenxian YANG, Zhike PENG, Fulei CHU
期刊论文
Turnover and loss of nitrogenous compounds during composting of food wastes
YANG Yanmei, ZHANG Xiangfeng, YANG Zhifeng, XI Beidou, LIU Hongliang
期刊论文
Winner determination problem with loss-averse buyers in reverse auctions
Xiaohu QIAN, Min HUANG, Yangyang YU, Xingwei WANG
期刊论文
A novel energy loss model and optimization design of the coin chute flection curve
Qinghua LIANG, Jinqiu MO, Weizhong GUO
期刊论文
Relationship of endothelial nitric oxide synthase gene polymorphism with blood pressure, lipid profile
TANG Zhongzhi, LI Junyao, YANG Jianhong
期刊论文