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Choosing configurations of transmission line tower grounding by back flashover probability value
Dmitry KUKLIN
《能源前沿(英文)》 2016年 第10卷 第2期 页码 213-226 doi: 10.1007/s11708-016-0398-6
关键词: grounding transmission line tower back flashover probability FDTD method
Discussion on back-to-back two-stage centrifugal compressor compact design techniques
Lei HUO, Huoxing LIU
《机械工程前沿(英文)》 2013年 第8卷 第4期 页码 390-400 doi: 10.1007/s11465-013-0278-2
Design a small flow back-to-back two-stage centrifugal compressor in the aviation turbocharger, the compressor is compact structure, small axial length, light weighted. Stationary parts have a great influence on their overall performance decline. Therefore, the stationary part of the back-to-back two-stage centrifugal compressor should pay full attention to the diffuser, bend, return vane and volute design. Volute also impact downstream return vane, making the flow in circumferential direction is not uniformed, and several blade angle of attack is drastically changed in downstream of the volute with the airflow can not be rotated to required angle. Loading of high-pressure rotor blades change due to non-uniformed of flow in circumferential direction, which makes individual blade load distribution changed, and affected blade passage load decreased to reduce the capability of work, the tip low speed range increases.
关键词: back-to-back two-stage centrifugal compressor design Internal flow
Youcef BEKAKRA,Djilani BEN ATTOUS
《能源前沿(英文)》 2014年 第8卷 第3期 页码 345-354 doi: 10.1007/s11708-014-0330-x
关键词: doubly fed induction generator (DFIG) wind turbine back-to-back pulse width modulation (PWM) DC-link voltage sliding mode control
Renewable synthetic fuel: turning carbon dioxide back into fuel
《能源前沿(英文)》 2022年 第16卷 第2期 页码 145-149 doi: 10.1007/s11708-022-0828-6
Acupuncture is ineffective for chronic low back pain? A critical analysis and rethinking
Xuqiang Wei, Baoyan Liu
《医学前沿(英文)》 2021年 第15卷 第5期 页码 767-775 doi: 10.1007/s11684-020-0785-6
关键词: chronic low back pain sham acupuncture acupuncture methodology therapeutic evaluation
Analytical method of capsizing probability in the time domain for ships in the random beam seas
LIU Liqin, TANG Yougang, LI Hongxia
《结构与土木工程前沿(英文)》 2007年 第1卷 第3期 页码 361-366 doi: 10.1007/s11709-007-0048-5
关键词: different survival probability different significant nonlinear differential narrowband
季经纬,宋虎,杨立中,范维澄
《中国工程科学》 2003年 第5卷 第7期 页码 62-66
利用小尺寸轰燃实验台对松木和杉木的点燃性能进行了研究。该实验台能够提供接近实际火灾的燃烧环境,实验具有较好的可重复性。在锥形量热计实验的基础上提出了一种新的材料热辐射引燃判据。采用实验测得的轰燃实验台上层热烟气温度的平均值,结合热辐射引燃判据计算了木材在轰燃实验台中的点燃情况。
Take back and treatment of discarded electronics: a scientific update
Ab STEVELS, Jaco HUISMAN, Feng WANG, Jinhui LI, Boyang LI, Huabo DUAN
《环境科学与工程前沿(英文)》 2013年 第7卷 第4期 页码 475-482 doi: 10.1007/s11783-013-0538-8
WU Hongchun, LIU Pingping, ZHOU Yongqiang, CAO Liangzhi
《能源前沿(英文)》 2007年 第1卷 第2期 页码 158-166 doi: 10.1007/s11708-007-0020-z
关键词: unstructured geometry assembly transmission probability TPM rectangular
全尺寸交流500 kV输电杆塔复合横担的雷电闪络特性 Article
王乾, 梁曦东, 沈余峰, 刘书明, 左周, 高岩峰
《工程(英文)》 2023年 第23卷 第4期 页码 130-137 doi: 10.1016/j.eng.2021.09.021
架空输电线路(OTL)一直以来都是电力传输的主要方式。随着输电电压和输电容量的迅速提高,输电杆塔的尺寸也随之增加,造成土地资源的大量占用。考虑到线路复合绝缘子的优异性能,复合横担有望成为这一问题的解决方案。在本文中,作者制备了一个安装有复合横担的全尺寸交流(AC)500 kV输电杆塔,并施加了不同极性的雷电过电压。借助高速相机记录了流注-先导放电的过程,确认了闪络的主要路径。通过测量闪络电压并根据空气密度和湿度对结果进行修正,证实了放电的极性效应。继而,根据杆塔结构和闪络特性计算了杆塔的耐雷水平。基于全尺寸试验的结果与分析,确认了复合横担的可行性,并提出了结构优化方案。
Evaluating effect of chloride attack and concrete cover on the probability of corrosion
Sanjeev Kumar VERMA, Sudhir Singh BHADAURIA, Saleem AKHTAR
《结构与土木工程前沿(英文)》 2013年 第7卷 第4期 页码 379-390 doi: 10.1007/s11709-013-0223-9
关键词: concrete chloride reinforcement corrosion deterioration cover
顾冲时,吴中如
《中国工程科学》 2001年 第3卷 第8期 页码 76-81
在研究大坝原型反分析及其应用研究现状的基础上,提出了反分析中急待解决的热点问题,并对这些热点问题进行了探讨,介绍了一些新的分析理论和方法。
Hicham SERHOUD, Djilani BENATTOUS
《能源前沿(英文)》 2013年 第7卷 第3期 页码 380-387 doi: 10.1007/s11708-013-0252-z
关键词: brushless doubly-fed generator (BDFG) modeling grid connection control back-to-back pulse-width modulation (PWM) converter wind power generation
Using hybrid models to predict blood pressure reactivity to unsupported back based on anthropometric
Gurmanik KAUR,Ajat Shatru ARORA,Vijender Kumar JAIN
《信息与电子工程前沿(英文)》 2015年 第16卷 第6期 页码 474-485 doi: 10.1631/FITEE.1400295
关键词: Blood pressure (BP) Principal component analysis (PCA) Forward stepwise regression Artificial neural network (ANN) Adaptive neuro-fuzzy inference system (ANFIS) Least squares support vector machine (LS-SVM)
Yang LIU, Jing LIU
《机械工程前沿(英文)》 2012年 第7卷 第4期 页码 376-384 doi: 10.1007/s11465-012-0352-1
This article is dedicated to present a review on existing challenges and latest developments in surgical robotics in attempts to overcome the obstacles lying behind. Rather than to perform an exhaustive evaluation, we would emphasize more on the new insight by digesting the emerging bio-inspired surgical technologies with potentials to revolutionize the field. Typical approaches, possible applications, advantages and technical challenges were discussed. Evolutions of surgical robotics and future trends were analyzed. It can be found that, the major difficulties in the field of surgical robots may not be properly addressed by only using conventional approaches. As an alternative, bio-inspired methods or materials may shed light on new innovations. While endeavors to deal with existing strategies still need to be made, attentions should be paid to also borrow ideas from nature.
关键词: minimally invasive surgery surgical robotics haptic feedback miniaturization bio-inspiration bionics
标题 作者 时间 类型 操作
Choosing configurations of transmission line tower grounding by back flashover probability value
Dmitry KUKLIN
期刊论文
Discussion on back-to-back two-stage centrifugal compressor compact design techniques
Lei HUO, Huoxing LIU
期刊论文
DFIG sliding mode control fed by back-to-back PWM converter with DC-link voltage control for variable
Youcef BEKAKRA,Djilani BEN ATTOUS
期刊论文
Acupuncture is ineffective for chronic low back pain? A critical analysis and rethinking
Xuqiang Wei, Baoyan Liu
期刊论文
Analytical method of capsizing probability in the time domain for ships in the random beam seas
LIU Liqin, TANG Yougang, LI Hongxia
期刊论文
Take back and treatment of discarded electronics: a scientific update
Ab STEVELS, Jaco HUISMAN, Feng WANG, Jinhui LI, Boyang LI, Huabo DUAN
期刊论文
Transmission probability method based on triangle meshes for solving the unstructured geometry neutron
WU Hongchun, LIU Pingping, ZHOU Yongqiang, CAO Liangzhi
期刊论文
Evaluating effect of chloride attack and concrete cover on the probability of corrosion
Sanjeev Kumar VERMA, Sudhir Singh BHADAURIA, Saleem AKHTAR
期刊论文
Simulation of grid connection and maximum power point tracking control of brushless doubly-fed generator in wind power system
Hicham SERHOUD, Djilani BENATTOUS
期刊论文
Using hybrid models to predict blood pressure reactivity to unsupported back based on anthropometric
Gurmanik KAUR,Ajat Shatru ARORA,Vijender Kumar JAIN
期刊论文