Flow behavior and microstructure of a homogenized ZK60 magnesium alloy were investigated during compression in the temperature range of 250-400 ℃ and the strain rate range of 0.1-50 s^-1. The results showed that dyna...Flow behavior and microstructure of a homogenized ZK60 magnesium alloy were investigated during compression in the temperature range of 250-400 ℃ and the strain rate range of 0.1-50 s^-1. The results showed that dynamic recrystallization （DRX） developed mainly at grain boundaries at lower strain rate （0.1-1 s^-1）, while in the case of higher strain rate （10-50 s^-1）, DRX occurred extensively both at twins and grain boundaries at all temperature range, especially at temperature lower than 350 ℃, which resulted in a more homogeneous microstructure than that under other deformation conditions. The DRX extent determines the hot workability of the workpiece, therefore, hot deformation at the strain rate of 10-50 s^-1 and in the temperature range of 250-350 ℃ was desirable for ZK60 alloy. Twin induced DRX during high strain rate compression included three steps. Firstly, twins with high dislocation subdivided the initial grain, then dislocation arrays subdivided the twins into subgrains, and after that DRX took place with a further increase of strain.展开更多
This article presents a case study of the Siam Commercial Bank （SCB） by investigating why and how SCB implemented organizational restructuring during the uncertain economic environment, and gives an overview of the ...This article presents a case study of the Siam Commercial Bank （SCB） by investigating why and how SCB implemented organizational restructuring during the uncertain economic environment, and gives an overview of the Thai commercial bank industry. This article presents and discusses SCB＇s strategy implementation in its organization during 1997-2010. This case study is aimed to provide some guidelines for other companies in developing and in choosing strategies for their business sustainability in the global change, and in choosing the implementation of their organization structure for competitive markets.展开更多
This paper1 addresses different theoretical frameworks of organizational learning （OL） from two aspects： from the perspective of individuals to organizations and from the perspective of organizations to individuals...This paper1 addresses different theoretical frameworks of organizational learning （OL） from two aspects： from the perspective of individuals to organizations and from the perspective of organizations to individuals. The most significant finding is intended to highlight the guidelines for each of researchers＇ concentrated cluster and to demonstrate that different researchers present different guidelines for processes, individual skills, and changes in the environment, teamwork, and competitiveness. The insight, gained by considering OL as a process, is not routine It allows one to create, acquire, and transfer knowledge. This will always be limited to the internal capabilities developed during the course of the timeline and will identify skills and competencies generated in accordance with the requirements presented by different environments. OL is associated with both the change in organizational behaviors and the creation of a knowledge base.展开更多
From three different historical phases, the article summarizes the development process on forestry cooperative organizations in China since 1949, and analyses the types, functions and existing problems of current fore...From three different historical phases, the article summarizes the development process on forestry cooperative organizations in China since 1949, and analyses the types, functions and existing problems of current forestry cooperative organizations. Drawing on the experience of other countries for reference, the authors bring forward policy suggestions on facilitating the development of forestry cooperative organizations and strengthening standardized management.展开更多
基金Project (14JJ6047) supported by the Natural Science Foundation of Hunan Province,ChinaProject (51274092) supported by the National Natural Science Foundation of ChinaProject (20120161110040) supported by the Doctoral Program of Higher Education ofChina
文摘Flow behavior and microstructure of a homogenized ZK60 magnesium alloy were investigated during compression in the temperature range of 250-400 ℃ and the strain rate range of 0.1-50 s^-1. The results showed that dynamic recrystallization （DRX） developed mainly at grain boundaries at lower strain rate （0.1-1 s^-1）, while in the case of higher strain rate （10-50 s^-1）, DRX occurred extensively both at twins and grain boundaries at all temperature range, especially at temperature lower than 350 ℃, which resulted in a more homogeneous microstructure than that under other deformation conditions. The DRX extent determines the hot workability of the workpiece, therefore, hot deformation at the strain rate of 10-50 s^-1 and in the temperature range of 250-350 ℃ was desirable for ZK60 alloy. Twin induced DRX during high strain rate compression included three steps. Firstly, twins with high dislocation subdivided the initial grain, then dislocation arrays subdivided the twins into subgrains, and after that DRX took place with a further increase of strain.
文摘This article presents a case study of the Siam Commercial Bank （SCB） by investigating why and how SCB implemented organizational restructuring during the uncertain economic environment, and gives an overview of the Thai commercial bank industry. This article presents and discusses SCB＇s strategy implementation in its organization during 1997-2010. This case study is aimed to provide some guidelines for other companies in developing and in choosing strategies for their business sustainability in the global change, and in choosing the implementation of their organization structure for competitive markets.
文摘This paper1 addresses different theoretical frameworks of organizational learning （OL） from two aspects： from the perspective of individuals to organizations and from the perspective of organizations to individuals. The most significant finding is intended to highlight the guidelines for each of researchers＇ concentrated cluster and to demonstrate that different researchers present different guidelines for processes, individual skills, and changes in the environment, teamwork, and competitiveness. The insight, gained by considering OL as a process, is not routine It allows one to create, acquire, and transfer knowledge. This will always be limited to the internal capabilities developed during the course of the timeline and will identify skills and competencies generated in accordance with the requirements presented by different environments. OL is associated with both the change in organizational behaviors and the creation of a knowledge base.
文摘From three different historical phases, the article summarizes the development process on forestry cooperative organizations in China since 1949, and analyses the types, functions and existing problems of current forestry cooperative organizations. Drawing on the experience of other countries for reference, the authors bring forward policy suggestions on facilitating the development of forestry cooperative organizations and strengthening standardized management.
