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Choosing configurations of transmission line tower grounding by back flashover probability value

Dmitry KUKLIN

Frontiers in Energy 2016, Volume 10, Issue 2,   Pages 213-226 doi: 10.1007/s11708-016-0398-6

Abstract: The probability of back flashover, which provides both qualitative and quantitative estimate of the groundingThe insulation flashover probability is calculated on the basis of engineering method, which evaluatesbreakdown strength of insulation for nonstandard waveshapes, and probability data on lightning currentsDifferent approaches are examined for identifying the back flashover probability, as not only amplitudesIt is found that lightning current waveform can greatly influence calculated back flashover probability

Keywords： grounding     transmission line tower     back flashover probability     FDTD method    

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Discussion on back-to-back two-stage centrifugal compressor compact design techniques

Lei HUO, Huoxing LIU

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4,   Pages 390-400 doi: 10.1007/s11465-013-0278-2

Abstract:

Design a small flow back-to-back two-stage centrifugal compressor in the aviation turbocharger, theTherefore, the stationary part of the back-to-back two-stage centrifugal compressor should pay full attention

Keywords： back-to-back     two-stage     centrifugal compressor     design     Internal flow    

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DFIG sliding mode control fed by back-to-back PWM converter with DC-link voltage control for variable

Youcef BEKAKRA,Djilani BEN ATTOUS

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 345-354 doi: 10.1007/s11708-014-0330-x

Abstract: control of doubly fed induction generator (DFIG) with the rotor connected to the electric grid through a back-to-backA proportional-integral-(PI) controller is used to keep the DC-link voltage constant for a back-to-back

Keywords： doubly fed induction generator (DFIG)     wind turbine     back-to-back pulse width modulation (PWM)     DC-link    

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Renewable synthetic fuel: turning carbon dioxide back into fuel

Frontiers in Energy 2022, Volume 16, Issue 2,   Pages 145-149 doi: 10.1007/s11708-022-0828-6

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Acupuncture is ineffective for chronic low back pain? A critical analysis and rethinking

Xuqiang Wei, Baoyan Liu

Frontiers of Medicine 2021, Volume 15, Issue 5,   Pages 767-775 doi: 10.1007/s11684-020-0785-6

Abstract: Acupuncture is a promising treatment for relieving pain and improving lower back function in clinicalMost RCTs conclude that acupuncture procedures for chronic low back pain (CLBP) had no significant difference

Keywords： chronic low back pain     sham acupuncture     acupuncture     methodology     therapeutic evaluation    

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Analytical method of capsizing probability in the time domain for ships in the random beam seas

LIU Liqin, TANG Yougang, LI Hongxia

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 361-366 doi: 10.1007/s11709-007-0048-5

Abstract: The methods for constructing safe basins of ships and predicting their survival probability in random

Keywords： different     survival probability     different significant     nonlinear differential     narrowband    

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The Ignition and the Forecast Model of Wood Blocks in a Bench-scale Flashover Apparatus

Ji Jingwei,Song Hu,Yang Lizhong,Fan Jicheng

Strategic Study of CAE 2003, Volume 5, Issue 7,   Pages 62-66

Abstract:

The ignition of both deal and fir blocks were tested with a bench-scale flashover test apparatus.Tests results showed that the bench-scale flashover test apparatus could offer a test environment similarIgnition time of wood block in the bench-scale flashover test apparatus were calculated with the testedfacile and available for the purpose of forecasting the ignition time of wood blocks in the bench-scale flashover

Keywords： flashover     wood     ignition    

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Take back and treatment of discarded electronics: a scientific update

Ab STEVELS, Jaco HUISMAN, Feng WANG, Jinhui LI, Boyang LI, Huabo DUAN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 4,   Pages 475-482 doi: 10.1007/s11783-013-0538-8

Abstract: This paper indicates that the performance of tack-back and treatment of electronic waste (e-waste) system

Keywords： e-waste     take back     treatment     substantially    

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Transmission probability method based on triangle meshes for solving the unstructured geometry neutron

WU Hongchun, LIU Pingping, ZHOU Yongqiang, CAO Liangzhi

Frontiers in Energy 2007, Volume 1, Issue 2,   Pages 158-166 doi: 10.1007/s11708-007-0020-z

Abstract: To calculate the fuel assembly, the transmission probability method (TPM) is widely used.

Keywords： unstructured geometry     assembly     transmission probability     TPM     rectangular    

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Lightning Flashover Characteristics of a Full-Scale AC 500 kV Transmission Tower with Composite Cross Article

Qian Wang, Xidong Liang, Yufeng Shen, Shuming Liu, Zhou Zuo, Yanfeng Gao

Engineering 2023, Volume 23, Issue 4,   Pages 130-137 doi: 10.1016/j.eng.2021.09.021

Abstract: process of streamer-leader discharge is recorded with a high-speed camera, and the major path of the flashoverThe flashover voltages are measured and corrected to standard conditions while considering the air humidityThe tower’s lightning-withstand level is calculated based on the tower structure and the flashover

Keywords： Composite cross arms     Transmission tower     Lightning flashover     Streamer discharge     Lightning withstand    

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Evaluating effect of chloride attack and concrete cover on the probability of corrosion

Sanjeev Kumar VERMA, Sudhir Singh BHADAURIA, Saleem AKHTAR

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 379-390 doi: 10.1007/s11709-013-0223-9

Abstract: chlorination studies, and from results of a field survey evaluates the effect of chloride content on the probabilitythe effect of concrete cover over the chloride content of the RC structures at rebar depth and on the probability

Keywords： concrete     chloride     reinforcement     corrosion     deterioration     cover    

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Review on New Theories and Methods in Prototype Back Analysis of Dam

Gu Chongshi,Wu Zhongru

Strategic Study of CAE 2001, Volume 3, Issue 8,   Pages 76-81

Abstract:

Based on the study of the present theories and application in prototype back analysis of dam, thehot problems which need to be solved urgently in back analysis are pointed out and studied.Some new back analysis theories and methods are introduced.

Keywords： dam     prototype back analysis     application    

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Simulation of grid connection and maximum power point tracking control of brushless doubly-fed generator in wind power system

Hicham SERHOUD, Djilani BENATTOUS

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 380-387 doi: 10.1007/s11708-013-0252-z

Abstract: In this paper, based on the analysis of the mathematical model in a common synchronous reference frame of the brushless doubly-fed generator (BDFG), the grid connection strategy and maximum energy extraction control were both analyzed. Besides, the transient simulation of no-load model and generation model of the BDFG have been developed on the MATLAB/Simulink platform. The test results during cutting-in grid confirmed the good dynamic performance of grid synchronization and effective power control approach for the BDFG-based variable speed wind turbines.

Keywords： brushless doubly-fed generator (BDFG)     modeling     grid connection control     back-to-back pulse-width modulation    

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Using hybrid models to predict blood pressure reactivity to unsupported back based on anthropometric

Gurmanik KAUR,Ajat Shatru ARORA,Vijender Kumar JAIN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 6,   Pages 474-485 doi: 10.1631/FITEE.1400295

Abstract: Guidelines on measurement of BP contain recommendations on the position of the back of the participantsby advising that they should sit with supported back to avoid spuriously high readings.squares support vector machine (LS-SVM) model for the prediction of BP reactivity to an unsupported back

Keywords： 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)    

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Surgical robotics: A look-back of latest advancement and bio-inspired ways to tackle existing challenges

Yang LIU, Jing LIU

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 376-384 doi: 10.1007/s11465-012-0352-1

Abstract:

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.

Keywords： minimally invasive surgery     surgical robotics     haptic feedback     miniaturization     bio-inspiration     bionics    

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Title Author Date Type Operation

Choosing configurations of transmission line tower grounding by back flashover probability value

Dmitry KUKLIN

Journal Article

Discussion on back-to-back two-stage centrifugal compressor compact design techniques

Lei HUO, Huoxing LIU

Journal Article

DFIG sliding mode control fed by back-to-back PWM converter with DC-link voltage control for variable

Youcef BEKAKRA,Djilani BEN ATTOUS

Journal Article

Renewable synthetic fuel: turning carbon dioxide back into fuel

Journal Article

Acupuncture is ineffective for chronic low back pain? A critical analysis and rethinking

Xuqiang Wei, Baoyan Liu

Journal Article

Analytical method of capsizing probability in the time domain for ships in the random beam seas

LIU Liqin, TANG Yougang, LI Hongxia

Journal Article

The Ignition and the Forecast Model of Wood Blocks in a Bench-scale Flashover Apparatus

Ji Jingwei,Song Hu,Yang Lizhong,Fan Jicheng

Journal Article

Take back and treatment of discarded electronics: a scientific update

Ab STEVELS, Jaco HUISMAN, Feng WANG, Jinhui LI, Boyang LI, Huabo DUAN

Journal Article

Transmission probability method based on triangle meshes for solving the unstructured geometry neutron

WU Hongchun, LIU Pingping, ZHOU Yongqiang, CAO Liangzhi

Journal Article

Lightning Flashover Characteristics of a Full-Scale AC 500 kV Transmission Tower with Composite Cross

Qian Wang, Xidong Liang, Yufeng Shen, Shuming Liu, Zhou Zuo, Yanfeng Gao

Journal Article

Evaluating effect of chloride attack and concrete cover on the probability of corrosion

Sanjeev Kumar VERMA, Sudhir Singh BHADAURIA, Saleem AKHTAR

Journal Article

Review on New Theories and Methods in Prototype Back Analysis of Dam

Gu Chongshi,Wu Zhongru

Journal Article

Simulation of grid connection and maximum power point tracking control of brushless doubly-fed generator in wind power system

Hicham SERHOUD, Djilani BENATTOUS

Journal Article

Using hybrid models to predict blood pressure reactivity to unsupported back based on anthropometric

Gurmanik KAUR,Ajat Shatru ARORA,Vijender Kumar JAIN

Journal Article

Surgical robotics: A look-back of latest advancement and bio-inspired ways to tackle existing challenges

Yang LIU, Jing LIU

Journal Article