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Research on swimming by undulatory long dorsal fin propulsion

WANG Guangming, SHEN Lincheng, WU Yonghui

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 77-81 doi: 10.1007/s11465-007-0013-y

Abstract: The hydromechanical performances of the undulatory long dorsal fin propeller of are estimated with theThe hydromechanical efficiency of the undulatory long dorsal fin system ranged from 81.664% to 86.420%is suggested that the undulatory long dorsal fin propulsion is an adaptation to swimming with high hydromechanicalefficiency.

Keywords： locomotive characteristic     hydromechanical     observation     propulsion     hydromechanical efficiency    

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Analysis of foundation sliding of an arch dam considering the hydromechanical behavior

Maria Luísa Braga FARINHA, José Vieira de LEMOS, Emanuel MARANHA DAS NEVES

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1,   Pages 35-43 doi: 10.1007/s11709-012-0142-1

Abstract: This paper presents the application of a methodology which can be used to assess arch dam foundation stability, using the discrete element method (DEM) and the code 3DEC. A global three-dimensional model of a dam foundation was developed, in which some discontinuities were simulated and both the grout and drainage curtains were represented. The model, calibrated taking into account recorded data, was used to carry out nonlinear mechanical analysis. The same model was employed to perform a hydraulic analysis, based on equivalent continuum concepts, which allowed the water pressure pattern within the foundation to be obtained. These water pressures were applied on discontinuities involved in the possible sliding mechanism along the dam/foundation interface, and the safety of the dam/foundation system was evaluated using a process of reduction of strength characteristics, with the aim of calculating the minimum safety factors that ensure stability. Results were compared with those obtained with the usual bi-linear uplift pressure distribution at the base of the dam, commonly used in concrete dam design. The relevance of carrying out hydraulic analysis in arch dam foundation failure studies is highlighted.

Keywords： concrete dams     rock foundations     hydromechanical behavior     failure analysis    

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Micro-hydromechanical deep drawing of metal cups with hydraulic pressure effects

Liang LUO, Zhengyi JIANG, Dongbin WEI, Xiaogang WANG, Cunlong ZHOU, Qingxue HUANG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 66-73 doi: 10.1007/s11465-018-0468-z

Abstract: Micro-hydromechanical deep drawing (MHDD), a typical microforming method, has been developed to take

Keywords： micro-hydromechanical deep drawing     microforming     size effects     lubrication     Voronoi    

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Hydromechanical model for hydraulic fractures using XFEM

Bo HE

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 240-249 doi: 10.1007/s11709-018-0490-6

Abstract: In this study, a hydromechanical model for fluid flow in fractured porous media is presented.Finally, examples are presented to demonstrate the versatility and efficiency of this two-scale hydromechanical

Keywords： multi-phase medium     porous     fracture     multi-scale method    

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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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Evaluating R&D efficiency of China’s listed lithium battery enterprises

Frontiers of Engineering Management   Pages 473-485 doi: 10.1007/s42524-022-0213-5

Abstract: To guide future policies and understand proper ways of promoting R&D efficiency, we looked into the lithiumResults revealed little indication of a meaningful improvement in R&D efficiency throughout our samplewas 0.442, whereas the average pure technical efficiency was at 0.503, thus suggesting that they wereIn contrast, the performance of the five leading players seemed superior because their average efficiencyMoreover, they were experiencing increasing scale efficiency (IRS).

Keywords： Data Envelopment Analysis     R&D investment efficiency     China’s listed lithium battery enterprises     technicalefficiency     pure technical efficiency     scale efficiency    

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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 efficiency

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

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Optimization of power and efficiency for an irreversible Diesel heat engine

Shiyan ZHENG, Guoxing LIN

Frontiers in Energy 2010, Volume 4, Issue 4,   Pages 560-565 doi: 10.1007/s11708-010-0018-9

Abstract: thermodynamic analysis and optimal control theory methods, the analytical expressions of power output and efficiencyMoreover, the optimum criterion of some important parameters, such as the power output, efficiency, pressure

Keywords： Diesel heat engine     irreversibility     power output     efficiency     parameter optimization    

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Methods and applications of DEA cross-efficiency: Review and future perspectives

Jie WU, Jiasen SUN, Liang LIANG

Frontiers of Engineering Management 2021, Volume 8, Issue 2,   Pages 199-211 doi: 10.1007/s42524-020-0133-1

Abstract: To address this problem, scholars have proposed the cross-efficiency evaluation (CREE) method.the theory and applications of CREE, including the non-uniqueness problem, the aggregation of cross-efficiency

Keywords： cross-efficiency evaluation     efficiency     secondary goal model     aggregation     review    

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STRATEGIES FOR IMPROVING WATER USE EFFICIENCY IN DRYLAND AGROECOSYSTEMS

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 599-602 doi: 10.15302/J-FASE -2021409

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Effects of dwarfing genes on water use efficiency of bread wheat

Jiakun YAN, Suiqi ZHANG

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 126-134 doi: 10.15302/J-FASE-2017134

Abstract: effects of different dwarfing genes on root growth, coleoptile length, grain yields and water using efficiency

Keywords： coleoptile length     wheat     dwarfing genes     grain yield     root     water use efficiency    

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neutrality potential of wastewater treatment plants: A novel evaluation framework integrating energy efficiency

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 9, doi: 10.1007/s11783-022-1549-0

Abstract:

• Framework of indicators was established based on energy efficiency

Keywords： Wastewater treatment plants     Energy neutrality potential     Energy efficiency     Energy recovery     Evaluation    

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Approaches to achieve high grain yield and high resource use efficiency in rice

Jianchang YANG

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 2,   Pages 115-123 doi: 10.15302/J-FASE-2015055

Abstract: This article discusses approaches to simultaneously increase grain yield and resource use efficiencyare three important approaches to achieving the dual goal of high grain yield and high resource use efficiencyDeeper root distribution and higher leaf photosynthetic N use efficiency at lower N rates could be usedsink activity through increasing sugar-spikelet ratio at the heading time and enhancing the conversion efficiencyand non-flooded straw mulching cultivation, could substantially increase grain yield and water use efficiency

Keywords： rice     nitrogen-efficient cultivar     grain fill     harvest index     nitrogen use efficiency     water use efficiency    

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A Comprehensive Evaluation of Policy Effectiveness for Energy Efficiency in Existing Buildings

Xing Wei,Han-ding Guo

Frontiers of Engineering Management 2014, Volume 1, Issue 4,   Pages 341-347 doi: 10.15302/J-FEM-2014060

Abstract: evaluation index system and a grey comprehensive evaluation model for policy effectiveness for energy efficiency

Keywords： grey comprehensive evaluation     existing buildings     energy efficiency     policies effectiveness    

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Regional characteristics of industrial energy efficiency in China: application of stochastic frontier

Tao HUANG,Akio ONISHI,Feng SHI,Masafumi MORISUGI,Mjo Lwin CHERRY

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 506-521 doi: 10.1007/s11783-014-0656-y

Abstract: This paper analyzed regional industrial energy efficiency in China with Total-Factor Energy EfficiencyThe East region has the best energy efficiency and the Central and the West regions stand as the secondHowever, it is found that industrial energy efficiency of all regions increased from 1998 to 2006.The industries of all provinces in China are not yet at the frontier efficiency position, therefore,However, increasing of heavy industry will lead to worse industrial energy efficiency.

Keywords： industrial energy efficiency     stochastic frontier analysis     total-factor energy efficiency     single factorenergy efficiency    

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Title Author Date Type Operation

Research on swimming by undulatory long dorsal fin propulsion

WANG Guangming, SHEN Lincheng, WU Yonghui

Journal Article

Analysis of foundation sliding of an arch dam considering the hydromechanical behavior

Maria Luísa Braga FARINHA, José Vieira de LEMOS, Emanuel MARANHA DAS NEVES

Journal Article

Micro-hydromechanical deep drawing of metal cups with hydraulic pressure effects

Liang LUO, Zhengyi JIANG, Dongbin WEI, Xiaogang WANG, Cunlong ZHOU, Qingxue HUANG

Journal Article

Hydromechanical model for hydraulic fractures using XFEM

Bo HE

Journal Article

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

La ZHUO, Arjen Y. HOEKSTRA

Journal Article

Evaluating R&D efficiency of China’s listed lithium battery enterprises

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

Optimization of power and efficiency for an irreversible Diesel heat engine

Shiyan ZHENG, Guoxing LIN

Journal Article

Methods and applications of DEA cross-efficiency: Review and future perspectives

Jie WU, Jiasen SUN, Liang LIANG

Journal Article

STRATEGIES FOR IMPROVING WATER USE EFFICIENCY IN DRYLAND AGROECOSYSTEMS

Journal Article

Effects of dwarfing genes on water use efficiency of bread wheat

Jiakun YAN, Suiqi ZHANG

Journal Article

neutrality potential of wastewater treatment plants: A novel evaluation framework integrating energy efficiency

Journal Article

Approaches to achieve high grain yield and high resource use efficiency in rice

Jianchang YANG

Journal Article

A Comprehensive Evaluation of Policy Effectiveness for Energy Efficiency in Existing Buildings

Xing Wei,Han-ding Guo

Journal Article

Regional characteristics of industrial energy efficiency in China: application of stochastic frontier

Tao HUANG,Akio ONISHI,Feng SHI,Masafumi MORISUGI,Mjo Lwin CHERRY

Journal Article