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A review on front end conversion in ocean wave energy converters

Nagulan SANTHOSH,Venkatesan BASKARAN,Arunachalam AMARKARTHIK

Frontiers in Energy 2015, Volume 9, Issue 3,   Pages 297-310 doi: 10.1007/s11708-015-0370-x

Abstract: detail which is positioned in the first stage of the wave energy converter among other stages such as powertake off (PTO) and electrical energy conversion.

Keywords： wave energy converter     point absorbers     power take off (PTO)     front end energy conversion    

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A novel method for extending the output power back-off range of an asymmetrical Doherty power amplifier Research Article

Mingyu LI, Xiaobing CHENG, Zhijiang DAI, Kang ZHONG, Tianfu CAI, Chaoyi HUANG

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 3,   Pages 470-479 doi: 10.1631/FITEE.2200250

Abstract: stage away from infinity and changing the phase delay of the output matching network of the carrier power

Keywords： Doherty power amplifier (DPA)     Output power back-off (OPBO)     Output impedance     Network phase    

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Advanced purification and comprehensive utilization of yellow phosphorous off gas

Ping NING,Xiangyu WANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 181-189 doi: 10.1007/s11783-014-0698-1

Abstract: Without appropriate purification and removal, this off gas has potential to cause severe pollution problemsPurified yellow phosphorous off gas can be beneficially reused as a raw material in chemical productionIn this paper, the significance of purification and reutilization of yellow phosphorous off gas are exploredprocesses, and main characteristics of the technologies for purification and reuse of yellow phosphorus offcomprehensive reutilization can be an effective solution for heavy pollution resulting from yellow phosphorous off

Keywords： yellow phosphorous off gas     purification     comprehensive utilization    

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Space Tourism Begins to Take Off

Mitch Leslie

Engineering 2022, Volume 10, Issue 3,   Pages 4-6 doi: 10.1016/j.eng.2022.01.005

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Typical off-design analytical performances of internal combustion engine cogeneration

Xiaohong HE, Ruixian CAI

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 184-192 doi: 10.1007/s11708-009-0007-z

Abstract: Based on experimental data, typical off-design characteristic curves with corresponding formulas of internalsingle-pressure heat recovery steam generator (HRSG) and influence of ambient pressure on combined heat and power(CHP) system, off-design operation regularities of ICE cogeneration are analyzed.Moreover, ICE power output and efficiency decrease with the decrease in ambient pressure.

Keywords： internal combustion engine (ICE)     cogeneration     heat recovery steam generator (HRSG)     off-design     superheated    

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Quantification of emission variability for off-road equipment in China based on real-world measurements

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1455-x

Abstract:

• Emissions from 53 in-use diesel-fueled off-road equipment were measured

Keywords： Off-road equipment     Portable emission measurement system (PEMS)     Real-world emissions     Diesel engine    

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Construction Technology of Off-Site Precast Concrete Buildings

Ting Gong,Jian Yang,Hao Hu,Feng Xu

Frontiers of Engineering Management 2015, Volume 2, Issue 2,   Pages 122-124 doi: 10.15302/J-FEM-2015039

Abstract: A comparison between traditional on-site and modern off-site construction methods has been conducted.

Keywords： off-site construction     precast concrete     modular construction     construction management     building information    

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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 can be improved substantially. This can be reached by better taking into account in a better way the big variety in material composition and potential toxicity of electrical and electronic products – from a technical, organizational and regulatory perspective. Realizing that there is no ‘one size fit for all’ and combining smart tailor made solutions with economic of sale will result in the best environmental gain/cost ratio. Several examples show how science and engineering have supported or will support this approach.

Keywords： e-waste     take back     treatment     substantially    

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Development and application of an off-site maintenance system in the petrochemical industry

Ruisheng YONG, Yanbing YE, Hanbin LUO, Lieyun DING

Frontiers of Engineering Management 2017, Volume 4, Issue 2,   Pages 111-126 doi: 10.15302/J-FEM-2017027

Abstract: and exposure to hazards during on-site operations and thereby reduce the probability of accidents, off-site

Keywords： on-site maintenance     petrochemical industry     safety     off-site maintenance system    

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How to make the production of methanol/DME “GREENER”—Integration of wind power with

Weidou NI , Zhen CHEN , Zheng LI , Jian GAO ,

Frontiers in Energy 2009, Volume 3, Issue 1,   Pages 94-98 doi: 10.1007/s11708-009-0012-2

Abstract: Wind power, whose installed capacity increased at a rate of more than 100% in recent years, has the mostHowever, there still exist many unsolved problems in wind power for on-grid utilization.A new integrated system which combines coal-based methanol/DME production with wind power is proposedIn this system, wind power is used to electrolyze water to produce H and O.

Keywords： wind power     off-grid     coal-based methanol/DME     electrolyze water    

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Airborne Wind Energy Prepares for Take Off

Peter Weiss

Engineering 2020, Volume 6, Issue 2,   Pages 107-109 doi: 10.1016/j.eng.2019.12.002

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Trace analysis of off-flavor/odor compounds in water using liquid-liquid microextraction coupled with

Jian LU,Paul S. WILLS,P. CHRIS WILSON

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 477-481 doi: 10.1007/s11783-015-0820-z

Abstract: A rapid, inexpensive and laboratory friendly method was developed for analysis of off-flavor/odor compoundsOff-flavor/odor compounds included geosmin, 2-methylisoborneol (MIB), 2-isobutyl-3-methyoxypyrazine (

Keywords： off-flavor/odor compounds     liquid-liquid microextraction     gas chromatography-tandem mass spectrometry    

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Can energy storage make off-grid photovoltaic hydrogen production system more economical?

Frontiers of Engineering Management   Pages 672-694 doi: 10.1007/s42524-022-0245-x

Abstract: Considering the intermittence and variability of PV power generation, the deployment of battery energystorage can smoothen the power output.Thus, the installation of energy-storage equipment in a PVEH system is a complex trade-off problem.

Keywords： hydrogen     off-grid photovoltaic     energy storage     LCOH     engineering economics    

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Effect of heat transfer coefficient of steam turbine rotor on thermal stress field under off-design condition

Jie GUO,Danmei XIE,Hengliang ZHANG,Wei JIANG,Yan ZHOU

Frontiers in Energy 2016, Volume 10, Issue 1,   Pages 57-64 doi: 10.1007/s11708-015-0385-3

Abstract: The precise calculation of temperature and thermal stress field of steam turbine rotor under off-design

Keywords： steam turbine     rotor     thermal stress     heat transfer coefficient     empirical formula    

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Genetic Engineering Aims to Take a Bite Out of Insect Pests

Chris Palmer

Engineering 2022, Volume 18, Issue 11,   Pages 6-8 doi: 10.1016/j.eng.2022.09.004

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Title Author Date Type Operation

A review on front end conversion in ocean wave energy converters

Nagulan SANTHOSH,Venkatesan BASKARAN,Arunachalam AMARKARTHIK

Journal Article

A novel method for extending the output power back-off range of an asymmetrical Doherty power amplifier

Mingyu LI, Xiaobing CHENG, Zhijiang DAI, Kang ZHONG, Tianfu CAI, Chaoyi HUANG

Journal Article

Advanced purification and comprehensive utilization of yellow phosphorous off gas

Ping NING,Xiangyu WANG

Journal Article

Space Tourism Begins to Take Off

Mitch Leslie

Journal Article

Typical off-design analytical performances of internal combustion engine cogeneration

Xiaohong HE, Ruixian CAI

Journal Article

Quantification of emission variability for off-road equipment in China based on real-world measurements

Journal Article

Construction Technology of Off-Site Precast Concrete Buildings

Ting Gong,Jian Yang,Hao Hu,Feng Xu

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

Development and application of an off-site maintenance system in the petrochemical industry

Ruisheng YONG, Yanbing YE, Hanbin LUO, Lieyun DING

Journal Article

How to make the production of methanol/DME “GREENER”—Integration of wind power with

Weidou NI , Zhen CHEN , Zheng LI , Jian GAO ,

Journal Article

Airborne Wind Energy Prepares for Take Off

Peter Weiss

Journal Article

Trace analysis of off-flavor/odor compounds in water using liquid-liquid microextraction coupled with

Jian LU,Paul S. WILLS,P. CHRIS WILSON

Journal Article

Can energy storage make off-grid photovoltaic hydrogen production system more economical?

Journal Article

Effect of heat transfer coefficient of steam turbine rotor on thermal stress field under off-design condition

Jie GUO,Danmei XIE,Hengliang ZHANG,Wei JIANG,Yan ZHOU

Journal Article

Genetic Engineering Aims to Take a Bite Out of Insect Pests

Chris Palmer

Journal Article