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Study on Extension Engineering

Yang Chunyan, Cai Wen

Strategic Study of Chinese Academy of Engineering 2000, Volume 2, Issue 12,   Pages 90-96

Abstract:

Extension engineering is the application technology of extension theory and extension method.It has been applied to some engineering fields such as detection, control, management, information and

Keywords： contradictory problem     extension set     extensibility     extension engineering    

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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:

Agricultural extension is an approach to rural development and agricultural transformation in whichDuring recent decades, different extension approaches have been tested and validated by the Ethiopiangovernment and non-governmental organizations to stimulate in the agricultural extension system (AESFarmer Research and Extension Groups and Farmer Field Schools were found to be central to the participation

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

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CHALLENGES AND CAPACITY GAPS IN SMALLHOLDER ACCESS TO DIGITAL EXTENSION AND ADVISORY SERVICES IN KENYA

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 4,   Pages 642-654 doi: 10.15302/J-FASE-2021423

Abstract:

● Seventy-eight percent of farmers accessed extension and advisory services

Keywords： advisory service     agricultural extension     digital extension     digital literacy    

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The Research of Mining the Mutative Knowledge With Extension Data Mining

Chen Wenwei

Strategic Study of Chinese Academy of Engineering 2006, Volume 8, Issue 11,   Pages 70-73

Abstract:

The thesis standardized the extension information and the extension knowledge, that is, basing onknowledge, the thesis extended the mutative information and knowledge, and nailed down the conceptions of extensiondata mining and extension reasoning.This thesis also attested two theorems of the extension data mining and the formula of the extensionThe author put forward the extension data mining which extended from mining the static knowledge to mining

Keywords： extension information     extension knowledge     extension data mining     extension reasoning    

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Study on Extension Strategic Tactical Planning

Yang Chunyan,Zhang Yongjun

Strategic Study of Chinese Academy of Engineering 2002, Volume 4, Issue 10,   Pages 73-78

Abstract:

Extension Strategic Tactics Planning (ESTP), based upon the science of extenics, is established alonggenerate the ideas of strategic tactical planning, how to completely analyze the resources, how to exploit extension

Keywords： extension strategic tactical planning     contradictory problem     extension method     idea generation     extension    

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Extension Controller Design via Sliding Mode Control

Chen Jenyang,Wong Chingchang

Strategic Study of Chinese Academy of Engineering 2001, Volume 3, Issue 9,   Pages 48-51

Abstract:

In this paper, a novel extension controller based on the scheme of sliding mode control is investigatedBy integrating the essential concept of extension set theory with the sliding mode control , the robustextension controller can be easily realized.In this study, a basic extension controller is organized first without any specific expert knowledgeActually, the proposed extension controller is stable in the sense of the Lyapunov.

Keywords： extension set     extension control     sliding mode control     system stability    

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Generating Available Scheme for Extension Detecting Technology

Yu Yongquan ,Zhang Jiwen

Strategic Study of Chinese Academy of Engineering 2002, Volume 4, Issue 1,   Pages 64-68

Abstract:

This work shows a method to obtain an available scheme for extension detecting technology.Based on the theory of extenics, some definitions and conceptions about extension detecting are described

Keywords： detecting matter-element     detecting element     extension set     extension tree    

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Correlation between tension softening relation and crack extension resistance in concrete

Xiufang ZHANG , Shilang XU ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3,   Pages 323-329 doi: 10.1007/s11709-009-0041-2

Abstract: Changes of the material fracture energy consumption with crack propagation can be described by a crack extensionThe variation of the crack extension resistance is mainly associated with the energy consumption in theThe crack extension resistance is then a function of the softening curve, which is a basic mechanicalThe relationship between the softening curve and the crack extension resistance curve is then analyzedThe results indicate that the characteristic points of the crack extension resistance curve is closely

Keywords： concrete     fracture process zone     crack extension GR resistance     tension softening curve    

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A New Evolution-reasoning Method in Conceptual Design Based on Extension Theory

Hao Yanwei,Liu Haisheng,Zhang Guoxian

Strategic Study of Chinese Academy of Engineering 2003, Volume 5, Issue 5,   Pages 63-69

Abstract: p>After existing study methods are analyzed, a new researching model for conceptual design based on extension

Keywords： conceptual design     matter elements transform     genetic algorithms     evolution reasoning     extension appraisal    

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Adaptive Extension Controller Design for Nonlinear Systems

Wong Qingchang,Chen Zhenyuan

Strategic Study of Chinese Academy of Engineering 2001, Volume 3, Issue 7,   Pages 54-58

Abstract:

A design method for the extension controller is developed in this paper.The proposed adaptive extension control resulting from the direct adaptive approach is employed to directlyadapt the gain parameter of the extension controller.Unlike the fuzzy controller, only one linguistic — like level is needed in the extension controllerThe derivation shows that the proposed extension controller is stable in the sense of the Lyapunov.

Keywords： extension theory     adaptive control     extension controller     robust stability    

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Extension Detecting Technology

Yu Yongquan

Strategic Study of Chinese Academy of Engineering 2001, Volume 3, Issue 4,   Pages 88-94

Abstract: this paper, based on the transformation concept of the contradiction, a new detecting technology—extensiondetecting problems of undetectable physical value the related concepts, basic principle and frame of extensionAn implementing way for its application to engineering is proposed, and an example is given as well.

Keywords： extension detecting technology     extrinsic     transform of matter element    

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Innovative agricultural extension value chain-based models for smallholder African farmers

Bidjokazo FOFANA, Leonides HALOS-KIM, Mercy AKEREDOLU, Ande OKIROR, Kebba SIMA, Deola NAIBAKELAO, Mel OLUOCH, Fumiko ISEKI

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 4,   Pages 418-426 doi: 10.15302/J-FASE-2020358

Abstract: The value chain extension strategy of Sasakawa Africa Association focuses on improving the capacity ofnational agricultural extension systems and follows various thematic areas along the value chain toThe supervised enterprise project model is an innovative agricultural extension model developed alongwith above models for capacity development of extension agents and transfer of technologies to smallholderofficers and extension delivery to farming communities.

Keywords： crop productivity     extension     farmer     grain yield     income     model    

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Extension Knowledge Base System and Its Application

Li Lixi,Li Jia

Strategic Study of Chinese Academy of Engineering 2001, Volume 3, Issue 3,   Pages 61-64

Abstract: Extension knowledge representation (EKR) based on extension theory is presented in this paper.In addition, the Specific Extension Inference (SEI) corresponding to EKR is also reviewed.Finally, the feature and the frame of extension knowledge base system (EKBS) are proposed.

Keywords： extension theory     non-compatible     knowledge base    

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Study of Conceptual Design of Extension for Mechanical Products

Zhao Yanwei

Strategic Study of Chinese Academy of Engineering 2001, Volume 3, Issue 5,   Pages 67-71

Abstract: article puts forward the research content, characters, path, and method of the conceptual design of extensiontechnology of intelligent conceptual design this article conducts research on the modelization method of extensionThe living example shows that the extension method has been applied in the field of conceptual designThis method is of great significance to resolve the bottleneck problem in theoretic studying and engineering

Keywords： conceptual design     mechanical product     intelligent CAD     extension    

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Study on Incompatibility Problems SolvingBased on Extension Theory

Yang Chunyan

Strategic Study of Chinese Academy of Engineering 2007, Volume 9, Issue 10,   Pages 36-39

Abstract:

Based on the study of single-characteristic incompatibility problem and the transformation of solving it,  the structure, judging methods and solving methods of multi-characteristic incompatibility problem are studied.  The transformation for solving incompatibility problem is called solution transformation.  Its applied value will be explained through its application in marketing.  This study will provide new tools for the intelligent disposal of contradiction problem.

Keywords： incompatibility problem     the function of compatible degree     solution transformation     extension set    

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Title Author Date Type Operation

Study on Extension Engineering

Yang Chunyan, Cai Wen

Journal Article

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

Gerba LETA, Steffen SCHULZ, Girum GETACHEW ALEMU

Journal Article

CHALLENGES AND CAPACITY GAPS IN SMALLHOLDER ACCESS TO DIGITAL EXTENSION AND ADVISORY SERVICES IN KENYA

Journal Article

The Research of Mining the Mutative Knowledge With Extension Data Mining

Chen Wenwei

Journal Article

Study on Extension Strategic Tactical Planning

Yang Chunyan,Zhang Yongjun

Journal Article

Extension Controller Design via Sliding Mode Control

Chen Jenyang,Wong Chingchang

Journal Article

Generating Available Scheme for Extension Detecting Technology

Yu Yongquan ,Zhang Jiwen

Journal Article

Correlation between tension softening relation and crack extension resistance in concrete

Xiufang ZHANG , Shilang XU ,

Journal Article

A New Evolution-reasoning Method in Conceptual Design Based on Extension Theory

Hao Yanwei,Liu Haisheng,Zhang Guoxian

Journal Article

Adaptive Extension Controller Design for Nonlinear Systems

Wong Qingchang,Chen Zhenyuan

Journal Article

Extension Detecting Technology

Yu Yongquan

Journal Article

Innovative agricultural extension value chain-based models for smallholder African farmers

Bidjokazo FOFANA, Leonides HALOS-KIM, Mercy AKEREDOLU, Ande OKIROR, Kebba SIMA, Deola NAIBAKELAO, Mel OLUOCH, Fumiko ISEKI

Journal Article

Extension Knowledge Base System and Its Application

Li Lixi,Li Jia

Journal Article

Study of Conceptual Design of Extension for Mechanical Products

Zhao Yanwei

Journal Article

Study on Incompatibility Problems SolvingBased on Extension Theory

Yang Chunyan

Journal Article