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An Empirical Study on the Internal Control Efficiency of Listed Engineering Companies
Zhi-wen Wang,Jing Tong
《工程管理前沿(英文)》 2015年 第2卷 第2期 页码 159-164 doi: 10.15302/J-FEM-2015026
关键词: internal control efficiency board of directors independent directors audit committee
Shiyan ZHENG
《能源前沿(英文)》 2011年 第5卷 第4期 页码 367-375 doi: 10.1007/s11708-011-0170-x
关键词: internal combustion engine irreversibility power output efficiency optimization
Red soil for sediment capping to control the internal nutrient release under flow conditions
Lei Xia, Guo Liu, Chunmei Chen, Meiyan Wen, Yangyang Gao
《环境科学与工程前沿(英文)》 2016年 第10卷 第6期 doi: 10.1007/s11783-016-0886-2
关键词: Sediment Red soil capping Flow conditions Nitrogen Phosphorus
Vibration control efficiency of piezoelectric shunt damping system
Dan WU, Zhichun YANG, Hao SUN,
《机械工程前沿(英文)》 2009年 第4卷 第4期 页码 441-446 doi: 10.1007/s11465-009-0055-4
关键词: piezoelectric shunt vibration control efficiency clamped plate generalized electromechanical coupling coefficient
苏万华,张众杰,刘瑞林,乔英俊
《中国工程科学》 2018年 第20卷 第1期 页码 97-103 doi: 10.15302/J-SSCAE-2018.01.014
为实现车辆低碳排放和零污染控制,笔者比较了新能源车和内燃机的各自优势,指出在未来相当长的时间内,内燃机仍将是汽车的主要原动力。本文总结了目前高效、节能、清洁的内燃机新技术,包括:先进燃烧技术、高增压和小型强化技术、多系统多变量控制技术、余热回收技术、智能停缸技术、缸内喷水技术等。最后指出,在环境污染、全球变暖、能源危机迫切的压力下,高效、清洁的内燃机新技术层出不穷,可挖掘潜力巨大,我国内燃机工业不可懈怠,自主发展高效清洁的内燃机是我国汽车工业走向汽车强国的重要组成部分。
燃油喷雾形态主动控制的可能性 Review
Masataka Arai
《工程(英文)》 2019年 第5卷 第3期 页码 519-534 doi: 10.1016/j.eng.2019.04.010
内燃机(ICE)对于汽车是有吸引力的动力源,具有良好的可储存性、可运输性,同时需要供应高能量密度的液体燃料。具有高性能和低环境危害的紧凑型内燃机是内燃机发展趋势。未来必须把燃油喷雾智能主动控制的燃烧作为解决传统内燃机相关重大问题(如排放)的突破性技术。已发展出在喷雾期间形成预期的燃料喷射速率和喷射模式的技术,并且传统内燃机可以在一定程度上控制燃烧。但是在燃烧范围内,燃料在空间上的扩散并未取得预期进展。因此,对于燃烧的智能控制,新且有效的燃油喷雾主动控制技术是非常必要的。空化、闪蒸、喷雾- 喷雾相互作用、喷雾-壁面相互作用和空气流动是有可能实现燃油喷雾形态主动控制的基础。本文使用文献中的论据来讨论未来喷雾燃烧的智能紧凑内燃机中喷雾形态主动控制技术的可能性。
《工程管理前沿(英文)》 页码 612-624 doi: 10.1007/s42524-023-0269-x
关键词: investment efficiency government investment air pollution control three-stage DEA-Malmquist model
QPSO-ILF-ANN-based optimization of TBM control parameters considering tunneling energy efficiency
《结构与土木工程前沿(英文)》 2023年 第17卷 第1期 页码 25-36 doi: 10.1007/s11709-022-0908-z
关键词: tunnel boring machine control parameter optimization quantum particle swarm optimization artificial neural network tunneling energy efficiency
Cylindrical particulate internal flows: A review
Lizhong HUANG, Xiang GAO, Jianzhong LIN
《机械工程前沿(英文)》 2012年 第7卷 第4期 页码 385-393 doi: 10.1007/s11465-012-0354-z
The study of cylindrical particulate internal flows has wide industrial applicability hence received much attention. This article reviews the cylindrical particulate internal flows over the past twenty years. The research is related to the cylindrical particulate flows in the straight channel, curved channel and rotational channel. Finally, several open research issues have been identified.
Bing XU, Min CHENG
《机械工程前沿(英文)》 2018年 第13卷 第2期 页码 151-166 doi: 10.1007/s11465-018-0470-5
This paper presents a survey of recent advancements and upcoming trends in motion control technologies employed in designing multi-actuator hydraulic systems for mobile machineries. Hydraulic systems have been extensively used in mobile machineries due to their superior power density and robustness. However, motion control technologies of multi-actuator hydraulic systems have faced increasing challenges due to stringent emission regulations. In this study, an overview of the evolution of existing throttling control technologies is presented, including open-center and load sensing controls. Recent advancements in energy-saving hydraulic technologies, such as individual metering, displacement, and hybrid controls, are briefly summarized. The impact of energy-saving hydraulic technologies on dynamic performance and control solutions are also discussed. Then, the advanced operation methods of multi-actuator mobile machineries are reviewed, including coordinated and haptic controls. Finally, challenges and opportunities of advanced motion control technologies are presented by providing an overall consideration of energy efficiency, controllability, cost, reliability, and other aspects.
关键词: motion control electrohydraulic control energy efficiency mobile machineries
Design and control optimization of energy systems of smart buildings today and in the near future
Shengwei WANG, Wenjie GANG
《工程管理前沿(英文)》 2017年 第4卷 第1期 页码 58-66 doi: 10.15302/J-FEM-2017005
关键词: Design optimization Optimal control Smart building Energy efficiency
Current progress on internal medicine in China—2006 Part I
YAO Dingkang, ZHU Liang, ZHAO Xue, MEI Changlin
《医学前沿(英文)》 2007年 第1卷 第3期 页码 235-247 doi: 10.1007/s11684-007-0046-y
关键词: internal medicine Chinaºs internal respiration gastroenterology cardiology
Embankment dam foundation analysis for the decrease of internal erosion likelihood
Marc SMITH
《结构与土木工程前沿(英文)》 2012年 第6卷 第4期 页码 431-436 doi: 10.1007/s11709-012-0183-5
关键词: seepage detection geostatistical analysis dam monitoring internal erosion LIDAR survey
Coupling evaluation for material removal and thermal control on precision milling machine tools
《机械工程前沿(英文)》 2022年 第17卷 第1期 页码 12-12 doi: 10.1007/s11465-021-0668-9
关键词: machine tools cutting energy efficiency thermal stability machining accuracy coupling evaluation
Advances in polishing of internal structures on parts made by laser-based powder bed fusion
《机械工程前沿(英文)》 2023年 第18卷 第1期 doi: 10.1007/s11465-022-0724-0
关键词: laser-based powder bed fusion polishing internal structures surface quality surface features post process additive manufacturing
标题 作者 时间 类型 操作
An Empirical Study on the Internal Control Efficiency of Listed Engineering Companies
Zhi-wen Wang,Jing Tong
期刊论文
Unified cycle model of a class of internal combustion engines and their optimum performance characteristics
Shiyan ZHENG
期刊论文
Red soil for sediment capping to control the internal nutrient release under flow conditions
Lei Xia, Guo Liu, Chunmei Chen, Meiyan Wen, Yangyang Gao
期刊论文
Vibration control efficiency of piezoelectric shunt damping system
Dan WU, Zhichun YANG, Hao SUN,
期刊论文
Efficiency evaluation of government investment for air pollution control in city clusters: A case from
期刊论文
QPSO-ILF-ANN-based optimization of TBM control parameters considering tunneling energy efficiency
期刊论文
Motion control of multi-actuator hydraulic systems for mobile machineries: Recent advancements and future
Bing XU, Min CHENG
期刊论文
Design and control optimization of energy systems of smart buildings today and in the near future
Shengwei WANG, Wenjie GANG
期刊论文
Current progress on internal medicine in China—2006 Part I
YAO Dingkang, ZHU Liang, ZHAO Xue, MEI Changlin
期刊论文
Coupling evaluation for material removal and thermal control on precision milling machine tools
期刊论文