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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

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 321-332 doi: 10.1007/s11465-017-0434-1

Abstract: This study investigates the effects of wind shear and tower shadow on power output in terms of powerFirst, wind speed models, particularly the wind shear model and the tower shadow model, are describedThe widely accepted tower shadow model is modified in view of the cone-shaped towers of modern large-scalePower fluctuation and power loss due to wind shear and tower shadow are analyzed by performing theoreticalResults indicate that power fluctuation is mainly caused by tower shadow, whereas power loss is primarily

Keywords： wind turbine     wind shear     tower shadow     power fluctuation     power loss    

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Smog Casts a Shadow on Solar Power

Jane Palmer

Engineering 2019, Volume 5, Issue 6,   Pages 989-990 doi: 10.1016/j.eng.2019.10.009

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Safety and serviceability assessment for high-rise tower crane to turbulent winds

Zhi SUN, Nin HOU, Haifan XIANG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 18-24 doi: 10.1007/s11709-009-0009-2

Abstract: Tower cranes are commonly used facilities for the construction of high-rise structures.This paper proposes a general scheme for safety and serviceability assessment of high-rise tower craneSpatially correlated wind velocity field at the location of the tower crane was first simulated usingThe proposed method is then adopted for analyzing the buffeting response of an in-use tower crane under

Keywords： tower crane     buffeting response     wind velocity     modeling    

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Practice and Experience of Canton Tower Project Management

Rong-hua Yi

Frontiers of Engineering Management 2016, Volume 3, Issue 1,   Pages 74-79 doi: 10.15302/J-FEM-2016013

Abstract: This paper presents a brief introduction about the preliminary consulting and tender agent of Canton Towersituation of the whole-process supervision on the construction site, and a general summary of the Canton Tower

Keywords： Canton Tower     consultation     tender agent     whole-process     supervision    

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Impacts of solar multiple on the performance of direct steam generation solar power tower plant with

Yan LUO, Xiaoze DU, Lijun YANG, Chao XU, Muhammad AMJAD

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 461-471 doi: 10.1007/s11708-017-0503-5

Abstract: two key design parameters for revealing the performance of direct steam generation (DSG) solar power towerTaking the dual-receiver DSG solar power tower plant with a given size of solar field equivalent electricity

Keywords： direct steam generation     solar power tower     solar multiple     thermal energy storage capacity     levelized cost    

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Amethod of shadowpuppet figure modeling and animation

Xiao-fang HUANG,Shou-qian SUN,Ke-jun ZHANG,Tian-ning XU,Jian-feng WU,Bin ZHU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 5,   Pages 367-379 doi: 10.1631/FITEE.1400351

Abstract: To promote the development of the intangible cultural heritage of the world, shadow play, many studieshave focused on shadow puppet modeling and interaction.Most of the shadow puppet figures are still imaginary, spread by ancients, or carved and painted by shadowThis study proposes an algorithm to transform 3D human models to 2D puppet figures for shadow puppetsExperiment proves that more realistic and attractive figures and animations of the shadow puppet can

Keywords： Shadow play     Shadow puppet figure     3D human body     Data processing     2D modeling    

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Taizhou Bridge—the first kilometer level three-tower two-span suspension bridge in the world

Zhong Jianchi

Strategic Study of CAE 2010, Volume 12, Issue 4,   Pages 4-8

Abstract: The middle tower of the bridge adopts longitudinal shape of herringbone fashion for the first time inThe foundation of the middle tower is the deepest caisson in the earth under water.carried out to construct the great engineering project, such as the design techniques of the three-towerscale caisson foundation, the manufacture, connection techniques of steel and concrete in the middle towerwelding of extra thick steel plate and manufacturing and control of abnormal sections of the middle tower

Keywords： three-tower suspension bridge     innovation     design     caisson in water     herringbone steel tower    

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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: of the fact that to choose the optimum design of grounding, the calculation model should include the tower

Keywords： grounding     transmission line tower     back flashover probability     FDTD method    

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Design on the board of spiral cooling tower

Huang Rui

Strategic Study of CAE 2008, Volume 10, Issue 11,   Pages 43-46

Abstract:

A spiral structure of cooling tower is designed for heat exchange ofgas & liquid.The method includes the locating of the outer spiral line on the tower wall and theAccording to the basic parameters of cooling tower, the critic parameters of spiral curving board canbe ascertainable, so as to accurately link up the tower board with the tower wall and the inner axial

Keywords： cooling tower     board     spiral curving board     topology    

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Public key based bidirectional shadow image authentication without pixel expansion in image secret sharing Research Article

Xuehu YAN, Longlong LI, Jia CHEN, Lei SUN,publictiger@126.com

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 1,   Pages 88-103 doi: 10.1631/FITEE.2200118

Abstract: generally includes shadow image detection and identification, and plays an important role in ISS.The authentication of the shadow image in the distributing (encoding) phase is also important for thethe received shadow image with his/her private key.In the decoding phase, the dealer can authenticate each received shadow image with a secret key; in addition, the dealer can losslessly decode the secret image with any k or more shadow images.

Keywords： Image secret sharing     Shadow image authentication     Public key     Pixel expansion     Lossless decoding    

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Anti-sliding safety assessment for main saddle on middle tower of Taizhou Bridge

Ruan Xin,Ruan Jing,Chen Airong and Guo Ji

Strategic Study of CAE 2012, Volume 14, Issue 5,   Pages 71-74

Abstract: Three methods to assess the safety of saddle sliding on middle tower of the Taizhou Bridge are presentedAll three assessment results indicate that the middle tower saddle of the Taizhou Yangtze River Bridge

Keywords： three-tower two-span suspension bridge     middle tower saddle     deterministic assessment     probabilistic    

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Contribution of Design Innovation to Oriental Pearl Tower & Menara Jakarta

Jiang Huancheng

Strategic Study of CAE 1999, Volume 1, Issue 1,   Pages 30-35

Abstract:

The project Oriental Pearl Tower, 463.85 m in height, ranked the first in Asia and the third in the
  The success in both Shanghai Oriental Pearl Tower construction and the design competitionIn the project of Shanghai Tower, designers used a string of pearls to symbolize Shanghai, hanging onFurthermore, a series of advanced technologies were employed in the tower, such as to use a prestressedMenara Jakarta, designers kept and developed all advantages and overcome some shortages in Shanghai Tower

Keywords： design innovation     TV tower     space frame     diagonal strut     sphere     steel pole     hanging structure    

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Optimization design of anti-seismic engineering measures for intake tower based on non-dominated sorting

Frontiers of Structural and Civil Engineering   Pages 1428-1441 doi: 10.1007/s11709-023-0998-2

Abstract: An intake tower in northwest China was considered the research object, and its natural vibration characteristicsadopted to optimize the anti-seismic scheme combination by comprehensively considering the dynamic towerFinally, the rationality of the original intake tower antiseismic design scheme was evaluated according

Keywords： intake tower     NSGA-II     mode decomposition response spectrum method     anti-seismic engineering measures    

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Tracing the impact of stack configuration on interface resistances in reverse electrodialysis by in situ electrochemical impedance spectroscopy

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-021-1480-9

Abstract:

• RED performance and stack resistance were studied by EIS and LSV.

Keywords： Reverse electrodialysis     Electrochemical impedance spectroscopy     Concentration polarization     Spacer shadow    

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Analyzing the nonlinear vibrational wave differential equation for the simplified model of Tower Cranes

M.R. AKBARI,D.D. GANJI,A.R. AHMADI,Sayyid H. Hashemi KACHAPI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 58-70 doi: 10.1007/s11465-014-0289-7

Abstract:

In the current paper, a simplified model of Tower Cranes has been presented in order to investigate

Keywords： Algebraic Method (AGM)     tower crane     oscillating system     angular frequency    

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Title Author Date Type Operation

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

Journal Article

Smog Casts a Shadow on Solar Power

Jane Palmer

Journal Article

Safety and serviceability assessment for high-rise tower crane to turbulent winds

Zhi SUN, Nin HOU, Haifan XIANG

Journal Article

Practice and Experience of Canton Tower Project Management

Rong-hua Yi

Journal Article

Impacts of solar multiple on the performance of direct steam generation solar power tower plant with

Yan LUO, Xiaoze DU, Lijun YANG, Chao XU, Muhammad AMJAD

Journal Article

Amethod of shadowpuppet figure modeling and animation

Xiao-fang HUANG,Shou-qian SUN,Ke-jun ZHANG,Tian-ning XU,Jian-feng WU,Bin ZHU

Journal Article

Taizhou Bridge—the first kilometer level three-tower two-span suspension bridge in the world

Zhong Jianchi

Journal Article

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

Dmitry KUKLIN

Journal Article

Design on the board of spiral cooling tower

Huang Rui

Journal Article

Public key based bidirectional shadow image authentication without pixel expansion in image secret sharing

Xuehu YAN, Longlong LI, Jia CHEN, Lei SUN,publictiger@126.com

Journal Article

Anti-sliding safety assessment for main saddle on middle tower of Taizhou Bridge

Ruan Xin,Ruan Jing,Chen Airong and Guo Ji

Journal Article

Contribution of Design Innovation to Oriental Pearl Tower & Menara Jakarta

Jiang Huancheng

Journal Article

Optimization design of anti-seismic engineering measures for intake tower based on non-dominated sorting

Journal Article

Tracing the impact of stack configuration on interface resistances in reverse electrodialysis by in situ electrochemical impedance spectroscopy

Journal Article

Analyzing the nonlinear vibrational wave differential equation for the simplified model of Tower Cranes

M.R. AKBARI,D.D. GANJI,A.R. AHMADI,Sayyid H. Hashemi KACHAPI

Journal Article