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End-use energy utilization efficiency of Nigerian residential sector

Fidelis I. ABAM,Olayinka S. OHUNAKIN,Bethrand N. NWANKWOJIKE,Ekwe B. EKWE

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 322-334 doi: 10.1007/s11708-014-0329-3

Abstract: In this paper, the end-use efficiencies of the different energy carriers and the overall energy efficiencyThe overall energy efficiency ranges from 19.15% in 2006 to 20.19% in 2011 with a mean of (19.96±0.23)% while the overall exergy efficiency ranges from 4.34% in 2006 to 4.40% in 2011 with a mean of (4.31The energy and exergy efficiency margin was 15.58% with a marginal improvement of 0.07% and 0.02%, respectivelyElectricity utilization exergy efficiency is affected by vapor-compression air conditioning application

Keywords： end-use     energy     exergy efficiency     residential sector     Nigeria    

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Improving the efficiency and effectiveness of global phosphorus use: focus on root and rhizosphere levels

Uwe LUDEWIG, Lixing YUAN, Günter NEUMANN

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 4,   Pages 357-365 doi: 10.15302/J-FASE-2019275

Abstract: Unfortunately, plant physiologists, agronomists, farmers and end users employ different measures for P use efficiencyMajor physiological and genetic factors for plant P uptake and utilization have been identified, but

Keywords： acquisition efficiency     plant growth promoting rhizobacteria     phosphate     use efficiency     utilization efficiency    

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Utilization of MSWI fly ash as partial cement or sand substitute with focus on cementing efficiency and

Lei Zheng, Xingbao Gao, Wei Wang, Zifu Li, Lingling Zhang, Shikun Cheng

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 1, doi: 10.1007/s11783-019-1184-6

Abstract: Cementing efficiency factor and mortar pore structure explain the strength results.The k value (cementing efficiency) of fly ash varied between 0.36 and 0.15 for the fly ash fraction incarcinogenic risks (CR) and non-carcinogenic hazard quotient (HQ) in sensitive scenario for blended mortar utilization

Keywords： MSWI fly ash     Cementing efficiency     Health risk assessment of heavy metal     Sand replacement     Cement replacement    

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Optimization and performance prediction of a new near-zero emission coal utilization system with combined

GUAN Jian, WANG Qinhui, LI Xiaomin, LUO Zhongyang, CEN Kefa

Frontiers in Energy 2007, Volume 1, Issue 1,   Pages 113-119 doi: 10.1007/s11708-007-0013-y

Abstract: In accordance with the new near-zero emission coal utilization system with combined gasification andBased on these calculations, the whole system efficiency calculation method that complies with the massTo enhance the system efficiency, the system pressure and the gasifier carbon conversion ratio were optimizedThe results indicate that the system efficiency increases with increasing pressure and gasifier carbonThe system efficiency could reach around 62.1% when operated in these two optimum parameters.

Keywords： influence     efficiency calculation     optimum     software FactSage     transport    

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Comparative study on the efficiency and environmental impact of two methods of utilizing polyvinyl chloride

WU Yuehui,WANG Guoliang,WANG Zhen,LIU Yi,GU Ping,SUN Dezhi

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 3,   Pages 451-462 doi: 10.1007/s11783-013-0614-0

Abstract: incineration process and a vacuum pyrolysis process, for energy conversion were compared to determine their efficiency

Keywords： polyvinyl chloride waste     utilization     incineration process     vacuum pyrolysis process     life cycle assessment    

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Strategies for improving fertilizer phosphorus use efficiency in Chinese cropping systems

Gu FENG, Jingping GAI, Xionghan FENG, Haigang LI, Lin ZHANG, Keke YI, Jialong LV, Yiyong ZHU, Li TANG, Yilin LI

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 4,   Pages 341-347 doi: 10.15302/J-FASE-2019280

Abstract:

A four-year project, entitled “The mechanisms of fraction transformation and high use efficiencybacteria in rhizosphere and hyphosphere; (3) to estimate the biological potential of crops for high efficiencyP absorption and use; (4) to innovate new approaches for improving the efficiency of P fertilizers.

Keywords： fixation     mobilization     phosphorus fertilizer     rhizosphere     transformations     utilization    

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Recycling of heat discharged from bearing quenching

WEN Xin-lin, CI Tie-jun, ZHANG Rong-ying, WEN Peng

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 472-474 doi: 10.1007/s11465-006-0062-7

Abstract: It is a novel approach for full utilization of heat energy during heat treatment, which increased 30% of the heat efficiency when compared with normal air-cooler methods that directly put exhaust air into

Keywords： process     utilization     technical     efficiency     atmosphere    

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Using drip irrigation of water and fertilizer for synergic development of industry and agriculture

An Di,Wang Tingjie and Jin Yong

Strategic Study of CAE 2015, Volume 17, Issue 5,   Pages 120-125

Abstract:

The low efficiency of fertilizer utilization in China has resulted in severe nonpoint source pollutionwater could be quantitatively fed to crops by using drip irrigation technology， which can increase the utilizationefficiency of fertilizer， irrigation efficiency of water and crop yields.

Keywords： fertilizer；water conservation；utilization efficiency；drip irrigation；PVC    

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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: Yellow phosphorous is an important raw material in the chemical industry. However, during the production of yellow phosphorous, high concentrations of carbon monoxide and other impurities are released. Without appropriate purification and removal, this off gas has potential to cause severe pollution problems once released. Purified yellow phosphorous off gas can be beneficially reused as a raw material in chemical production for synthesis of high value-added chemical reagents. In this paper, the significance of purification and reutilization of yellow phosphorous off gas are explored. The principles, processes, and main characteristics of the technologies for purification and reuse of yellow phosphorus off gas (including technical measurements of impurity reduction, relevant engineering cases, and public acceptance of the technologies) are summarized. In view of the existing problems and scientific development requirements, this paper proposes several recommendations for green production based on the concept of recycle economics. We conclude that advanced purification and comprehensive reutilization can be an effective solution for heavy pollution resulting from yellow phosphorous off gassing.

Keywords： yellow phosphorous off gas     purification     comprehensive utilization    

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Methodologies for chemical utilization of CO

Liangnian HE, Ya Du, Chengxia MIAO, Jinquan WANG, Xiaoyong DOU, Ying WU

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 224-228 doi: 10.1007/s11705-009-0067-y

Abstract: The reactions of CO with oxirane to produce cyclic carbonate, and with aziridine to afford oxazolidine have been of interest as a useful method for its fixation by a chemical process. Highly efficient processesemploying recyclable CO -phlilic homogeneous catalyst were devised for environmentally benign synthesis of cyclic carbonates and oxazolidinones under supercritical CO without any organic solvent. These processes represent pathways for greener chemical fixations of CO to afford industrial useful materials such as organic carbonates and oxazolidinones with great potential applications.

Keywords： carbon dioxide     chemical utilization     molecular catalyst     carbonate     oxazolidinone    

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CROP PROTECTION OPENS UP NEW ERA OF CONSERVATION AND UTILIZATION OF GREEN OPTIONS

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 1,   Pages 1-3 doi: 10.15302/J-FASE-2021431

Abstract: special issue of Frontiers of Agricultural Science and Engineering outlines potential conservation and utilization
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The effect of different agricultural management practices on irrigation efficiency, water use efficiency

La ZHUO, Arjen Y. HOEKSTRA

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 185-194 doi: 10.15302/J-FASE-2017149

Abstract: This paper explores the effect of varying agricultural management practices on different water efficiencyindicators: irrigation efficiency (IE), crop water use efficiency (WUE), and green and blue water footprintImprovements in one water efficiency indicator may cause a decline in another.

Keywords： field management     irrigation efficiency     water footprint     water productivity     water use efficiency    

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The application of marine meteorological observation in tropical cyclone data assimilation

Wan Qilin,He Jinhai

Strategic Study of CAE 2012, Volume 14, Issue 10,   Pages 33-42

Abstract: recognized that there is a need to develop appropriate data assimilation technology for enhancing the efficiencyof data utilization.By means of the multi scale/block batch wise data assimilation, to amplify the utilization of marine

Keywords： marine meteorological observation     the efficiency of data utilization     multi scale/block batch wise data    

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Recent development of vibration utilization engineering

WEN Bangchun

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 1-9 doi: 10.1007/s11465-008-0017-2

Abstract: The utilization of vibration and wave, which was developed during the latter half of the 20th centuryIn this paper, vibration utilization is classified into linear or non-linear vibrations, waves, and electric-magneticSome research results about vibration utilization engineering are described.

Keywords： utilization engineering     non-linear     vibration     vibration utillization     utillization engineering    

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China’s policy framework for carbon capture, utilization and storage: Review, analysis, and outlook

Frontiers in Energy 2023, Volume 17, Issue 3,   Pages 400-411 doi: 10.1007/s11708-023-0862-z

Abstract: Carbon capture, utilization, and storage (CCUS) is estimated to contribute substantial CO2

Keywords： carbon capture     utilization     and storage (CCUS)     policy     content analysis     China    

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Title Author Date Type Operation

End-use energy utilization efficiency of Nigerian residential sector

Fidelis I. ABAM,Olayinka S. OHUNAKIN,Bethrand N. NWANKWOJIKE,Ekwe B. EKWE

Journal Article

Improving the efficiency and effectiveness of global phosphorus use: focus on root and rhizosphere levels

Uwe LUDEWIG, Lixing YUAN, Günter NEUMANN

Journal Article

Utilization of MSWI fly ash as partial cement or sand substitute with focus on cementing efficiency and

Lei Zheng, Xingbao Gao, Wei Wang, Zifu Li, Lingling Zhang, Shikun Cheng

Journal Article

Optimization and performance prediction of a new near-zero emission coal utilization system with combined

GUAN Jian, WANG Qinhui, LI Xiaomin, LUO Zhongyang, CEN Kefa

Journal Article

Comparative study on the efficiency and environmental impact of two methods of utilizing polyvinyl chloride

WU Yuehui,WANG Guoliang,WANG Zhen,LIU Yi,GU Ping,SUN Dezhi

Journal Article

Strategies for improving fertilizer phosphorus use efficiency in Chinese cropping systems

Gu FENG, Jingping GAI, Xionghan FENG, Haigang LI, Lin ZHANG, Keke YI, Jialong LV, Yiyong ZHU, Li TANG, Yilin LI

Journal Article

Recycling of heat discharged from bearing quenching

WEN Xin-lin, CI Tie-jun, ZHANG Rong-ying, WEN Peng

Journal Article

Using drip irrigation of water and fertilizer for synergic development of industry and agriculture

An Di,Wang Tingjie and Jin Yong

Journal Article

Advanced purification and comprehensive utilization of yellow phosphorous off gas

Ping NING,Xiangyu WANG

Journal Article

Methodologies for chemical utilization of CO

Liangnian HE, Ya Du, Chengxia MIAO, Jinquan WANG, Xiaoyong DOU, Ying WU

Journal Article

CROP PROTECTION OPENS UP NEW ERA OF CONSERVATION AND UTILIZATION OF GREEN OPTIONS

Journal Article

The effect of different agricultural management practices on irrigation efficiency, water use efficiency

La ZHUO, Arjen Y. HOEKSTRA

Journal Article

The application of marine meteorological observation in tropical cyclone data assimilation

Wan Qilin,He Jinhai

Journal Article

Recent development of vibration utilization engineering

WEN Bangchun

Journal Article

China’s policy framework for carbon capture, utilization and storage: Review, analysis, and outlook

Journal Article