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Agricultural extension approach: evidence from an Integrated Soil Fertility Management Project in Ethiopia

Gerba LETA, Steffen SCHULZ, Girum GETACHEW ALEMU

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 4,   Pages 427-439 doi: 10.15302/J-FASE-2020331

Abstract: Farmer Research and Extension Groups and Farmer Field Schools were found to be central to the participationISFM was found to aid technology transfer and helped to increase grain and residue yields as well as farmer

Keywords： Ethiopia     Farmer Field School     Farmer Research and Extension Group     governance     institutionalization     ISFM    

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SOIL CARBON CHECK: A TOOL FOR MONITORING AND GUIDING SOIL CARBON SEQUESTRATION IN FARMER FIELDS

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 2,   Pages 248-261 doi: 10.15302/J-FASE-2023499

Abstract: ListItem>

● Establishment of a rapid tool for monitoring soil carbon sequestration in farmer

Keywords： 4 per 1000 initiative     carbon sequestration     climate action     farmer fields     SDG13     soil organic carbon    

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ENTREPRENEURIAL OPPORTUNITY, VALUE EVOLUTION, AND ORGANIZATIONAL INTEGRATION OF PROFESSIONAL FARMER ENTREPRENEURSHIP

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 1,   Pages 135-148 doi: 10.15302/J-FASE-2022464

Abstract:

● The choice of a modern agriculture project was found to be rational for professional farmers to reduce interference from non-market factors. The success of this project is due to its capacity to successfully fill the structural hole in the market transaction network.

Keywords： Benefit-linked mechanism     featured agriculture     organizational integration     professional farmers     rural cooperative     structural hole theory    

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Russian school of the theory and geometry of gearing: Its origin and golden period (1935 --1975)

Dmitry BABICHEV,Sergey LAGUTIN,Natalya BARMINA

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1,   Pages 44-59 doi: 10.1007/s11465-015-0360-z

Abstract:

During the second half of the twentieth century, Soviet scientists were among the world leaders in the theory and geometry of gearing or the theoretical fundamentals of designing gears and gear-cutting tools. The authors of the current paper review works related to the development of the theory of gearing (TG) written in Russian from the mid-1930s to the present. Overall, the review covers more than 400 publications of nearly 200 authors (among more than 1000 studied works). This review involves some works on gear strength and accuracy to attract more experts.

This paper presents a short list of works from the seventeenth century to the nineteenth century and discusses the basic concepts of the TG. This paper also includes a review of more than 160 papers in Russian for the period of 1935–1975, which is the “golden age” of the TG. The main features and achievements during this period are also considered.

The distinctive feature of this review is the use of diagrams that visually present TG experts and the dates and themes of their published works. The diagrams also show the following aspects: 1) The most popular and important themes in a specific period, 2) the most important publications on the themes of interest to readers, and 3) the direction of the works and scope of interests of every researcher.

Keywords： theory of gearing (TG)     gear geometry     generating surface     gear synthesis     gear analysis    

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AGRICULTURAL GREEN DEVELOPMENT IN THE ERHAI LAKE BASIN—THE WAY FORWARD

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 510-517 doi: 10.15302/J-FASE-2023524

Abstract: three main challenges were identified for concurrently decreasing pollution in the lake and increasing farmer

Keywords： agriculture     farmer income     nitrogen     phosphorus     water pollution    

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Study on Quality Evaluation of Domestic Agricultural Machinery Equipment: An Analysis Based on the Farmer

Zhou Jing, Qing Ping

Strategic Study of CAE 2019, Volume 21, Issue 5,   Pages 60-66 doi: 10.15302/J-SSCAE-2019.05.019

Abstract: Based on the data collected from farmer surveys in Central China, farmers' subjective evaluation

Keywords： domestic agricultural machinery     quality evaluation     farmer survey     Central China    

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Effectiveness of preventive medicine education and its determinants among medical students in Malaysia

Shirin Anil,Mohamed Shukry Zawahir,Redhwan Ahmed Al-Naggar

Frontiers of Medicine 2016, Volume 10, Issue 1,   Pages 91-100 doi: 10.1007/s11684-016-0428-0

Abstract:

Preventive medicine has been incorporated in the medical school curriculum, but its effectiveness” In univariable analysis, being a female, medical school, family size, and perception about the

Keywords： preventive medicine     medical school     medical students    

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Some issues about setting up the Chinese school of modern guanli science（III）：four definitions and three

Liu Renhuai,Sun Dongchuan,Sun Kai

Strategic Study of CAE 2009, Volume 11, Issue 8,   Pages 18-23

Abstract: We hope to set up the Chinese school of modern guanli science.

Keywords： guanli     guanli activity     guanli work     guanli science     Chinese school of modern guanli science     speaking rights    

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Recent progress in electric-field assisted combustion: a brief review

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 883-899 doi: 10.1007/s11708-021-0770-z

Abstract: Among the combustion technologies, electric-field assisted combustion is an advanced techno-logy thatIn the last two decades, tremendous efforts have been made to understand electric-field assisted combustionThese findings significantly facilitate the application of electric-field assisted combustion.

Keywords： electric field     combustion     flame stabilization     emission reduction     flame propagation    

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A MATLAB code for the material-field series-expansion topology optimization method

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 607-622 doi: 10.1007/s11465-021-0637-3

Abstract: This paper presents a MATLAB implementation of the material-field series-expansion (MFSE) topo-logy optimizationThe MFSE method uses a bounded material field with specified spatial correlation to represent the structuralWith the series-expansion method for bounded fields, this material field is described with the characteristic

Keywords： MATLAB implementation     topology optimization     material-field series-expansion method     bounded materialfield     dimensionality reduction    

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Field test on temperature field and thermal stress for prestressed concrete box-girder bridge

Baoguo CHEN, Rui DING, Junjie ZHENG, Shibiao ZHANG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 158-164 doi: 10.1007/s11709-009-0002-9

Abstract: A field test was conducted to investigate the distribution of temperature field and the variation ofAccording to field tests, the thermal stress incurred by hydration heat may induce temperature cracks

Keywords： box-girder bridge     field test     hydration heat     temperature field     temperature gradient     thermal stress    

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Energy field-assisted high-speed dry milling green machining technology for difficult-to-machine metal

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0744-9

Abstract: Energy field-assisted machining technology has the potential to overcome the limitations of machiningThe introduction of advanced energy-field-assisted green processing technology can improve the machinabilityThe laser energy field, ultrasonic energy field, and cryogenic minimum quantity lubrication energy fieldsBy analyzing the effects of changing the energy field and cutting parameters on tool wear, chip morphologyFinally, the shortcomings and technical challenges of energy-field-assisted milling are summarized in

Keywords： difficult-to-machine metal material     green machining     high-speed dry milling     laser energy field-assistedmilling     ultrasonic energy field-assisted milling     cryogenic minimum quantity lubrication energy field-assisted    

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Temperature field simulation of laser homogenizing equipment

Juanjuan WANG, Yunshan WANG, Fudong ZHU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 49-52 doi: 10.1007/s11465-009-0005-1

Abstract: The scanning ring facula’s mathematic model is established based on the temperature field’s superposingdistribution and temperature distribution characteristics are achieved by simulating its temperature fieldBy studying the effect of parameters on the temperature field, the best parameter can be found.

Keywords： laser homogenizing technology     laser scanning ring facula     temperature field    

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Sulige Gas Field super project

Wenrui HU, Jingwei BAO, Pengcheng JI

Frontiers of Engineering Management 2017, Volume 4, Issue 3,   Pages 379-384 doi: 10.15302/J-FEM-2017107

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The influencing factors of the WTP for the risk reduction of chemical industry accidents in China

Lei HUANG, Zhijuan SHAO, Weiliang BAO, Bailing DUAN, Jun BI, Zengwei YUAN

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 860-868 doi: 10.1007/s11783-012-0467-y

Abstract: To explore the factors that influence respondents’ willingness to pay (WTP) for the risk reduction of chemical industry accidents, a questionnaire survey combined with contingent valuation and psychometric paradigm methods were conducted in the city of Yancheng, Jiangsu Province, China. Both traditional socioeconomic variables and perceived characteristics of the hazards were considered in this study, and a Tobit model was used to find the factors influencing WTP under three risk reduction scenarios. The results showed that three demographic characteristics, , , and , significantly affected the WTP for chemical risk reduction. In addition, three extracted public risk perception factors, , , and , also strongly affected the WTP. The mean WTP value increased as the magnitude of the risk reduction increased. The number of factors influencing the WTP decreased as the reduction level improved, and only the factor had a significant influence on the WTP for a higher level (80%) of risk reduction. The cost for chemical safety management of Yancheng was calculated, and the optimized risk reduction level was determined. These findings can assist governments and policy makers to formulate suitable strategies for risk control, to reach target groups of people to develop effective communication, and to provide specific references for the best investment for the security of local residents.

Keywords： risk perception     willingness to pay     contingent valuation method     risk management school of the environment    

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Title Author Date Type Operation

Agricultural extension approach: evidence from an Integrated Soil Fertility Management Project in Ethiopia

Gerba LETA, Steffen SCHULZ, Girum GETACHEW ALEMU

Journal Article

SOIL CARBON CHECK: A TOOL FOR MONITORING AND GUIDING SOIL CARBON SEQUESTRATION IN FARMER FIELDS

Journal Article

ENTREPRENEURIAL OPPORTUNITY, VALUE EVOLUTION, AND ORGANIZATIONAL INTEGRATION OF PROFESSIONAL FARMER ENTREPRENEURSHIP

Journal Article

Russian school of the theory and geometry of gearing: Its origin and golden period (1935 --1975)

Dmitry BABICHEV,Sergey LAGUTIN,Natalya BARMINA

Journal Article

AGRICULTURAL GREEN DEVELOPMENT IN THE ERHAI LAKE BASIN—THE WAY FORWARD

Journal Article

Study on Quality Evaluation of Domestic Agricultural Machinery Equipment: An Analysis Based on the Farmer

Zhou Jing, Qing Ping

Journal Article

Effectiveness of preventive medicine education and its determinants among medical students in Malaysia

Shirin Anil,Mohamed Shukry Zawahir,Redhwan Ahmed Al-Naggar

Journal Article

Some issues about setting up the Chinese school of modern guanli science（III）：four definitions and three

Liu Renhuai,Sun Dongchuan,Sun Kai

Journal Article

Recent progress in electric-field assisted combustion: a brief review

Journal Article

A MATLAB code for the material-field series-expansion topology optimization method

Journal Article

Field test on temperature field and thermal stress for prestressed concrete box-girder bridge

Baoguo CHEN, Rui DING, Junjie ZHENG, Shibiao ZHANG

Journal Article

Energy field-assisted high-speed dry milling green machining technology for difficult-to-machine metal

Journal Article

Temperature field simulation of laser homogenizing equipment

Juanjuan WANG, Yunshan WANG, Fudong ZHU

Journal Article

Sulige Gas Field super project

Wenrui HU, Jingwei BAO, Pengcheng JI

Journal Article

The influencing factors of the WTP for the risk reduction of chemical industry accidents in China

Lei HUANG, Zhijuan SHAO, Weiliang BAO, Bailing DUAN, Jun BI, Zengwei YUAN

Journal Article