In order to investigate the size effect and other effects on the stress-strain relationship of confined concrete, 42 specimens with different sizes and section shapes were placed under axial compression loading. Effec...In order to investigate the size effect and other effects on the stress-strain relationship of confined concrete, 42 specimens with different sizes and section shapes were placed under axial compression loading. Effects of key parameters such as size of specimens, tie configuration, transverse reinforcement ratio, and concrete cover were studied. The results show that for specimens with the same configuration and the same volumetric ratio of the transverse reinforcement, along with the increasing specimen size, the peak stress, peak strain and deformation of the post-peak show a down trend, however, the volumetric ratio of the transverse reinforcement is lowered, the decreasing of the peak stress is accelerated, but the decreasing of the deformation is slow down. For specimens with the same volumetric ratio but different configurations of transverse reinforcement, though the transverse reinforcement configuration becomes more complicated, the peak stress of the large size specimen does not improve more than that of the small size. However, the deformation occurs before the stress declines to 85% of peak stress, and the improvement with the grid pattern tie configuration is much greater due to size effect.展开更多
The biggest problem in the world as well as in Turkey is to increase efficiency of human capital, which can only be achieved by educating all people in accordance with their capacities and demands. And, the biggest pr...The biggest problem in the world as well as in Turkey is to increase efficiency of human capital, which can only be achieved by educating all people in accordance with their capacities and demands. And, the biggest problem in education is finance. In order for everybody to have education, there is a need to develop a finance system which will help overcome the financial problems faced by households or individuals. For this purpose, the participatory, payable, profitable, and potent （4p＇s） insured education system model （IESM） is developed. This paper focuses on principles of the IESM and the analyses of frequency and variance by categories （one-way ANOVA）.展开更多
With increasing globalization and Bulgaria＇s accession into the European Union （EU）, the question how to improve the country＇s international competitiveness has become very important and urgent. The aim of the pap...With increasing globalization and Bulgaria＇s accession into the European Union （EU）, the question how to improve the country＇s international competitiveness has become very important and urgent. The aim of the paper is to present the results of a research on the past decade＇s competitiveness of Bulgarian export-oriented sectors, enjoying good positions in local and international markets and having a high development potential. The first part of the article presents a comprehensive review of the concept of competitiveness--its definitions, factors, and measurements at national, industry, and firm level. On the basis of the theoretical considerations, an empirical analysis on the current state of competitiveness of the selected export-oriented industries is performed. These include metallurgy, machine building, chemicals, clothing and textiles, furniture, wine production, tobacco, and food processing. The research answers the following questions： What are the major competitive advantages of Bulgarian export-oriented industries on the world market？ What are their disadvantages？ How did they change over the period 2002-2012, and what steps should be taken to meet the challenges？ The employed methods of analysis are both quantitative--calculating various production, trade, and price indices, and qualitative--carrying out a survey among top managers of firms operating in the selected industries across all the regions of the country. Results show that the country＇s competitiveness on international level has gradually improved but still remains at a comparatively low level as Bulgarian producers compete mostly on the price, invest very little in research and development （R＆D）, rely on low labor costs, and produce goods with low added value. The paper looks into the specific challenges to competitiveness faced by different sectors and the implications of addressing them. In conclusion, it puts forward some recommendations for boosting Bulgaria＇s international competitiveness which are aimed at key stakeholders： companies, central and local government, and institutions promoting cooperation.展开更多
In this paper, the general idea and quality assurance for the teaching quality management system of higher vocational colleges are proposed. A teaching quality management system for higher vocational colleges is const...In this paper, the general idea and quality assurance for the teaching quality management system of higher vocational colleges are proposed. A teaching quality management system for higher vocational colleges is constructed and studied to help these schools clearly know the development ideas and accordingly improve the core school competitiveness, and eventually promote a continuous long-term development.展开更多
基金Project(50838001) supported by the National Natural Science Foundation of China
文摘In order to investigate the size effect and other effects on the stress-strain relationship of confined concrete, 42 specimens with different sizes and section shapes were placed under axial compression loading. Effects of key parameters such as size of specimens, tie configuration, transverse reinforcement ratio, and concrete cover were studied. The results show that for specimens with the same configuration and the same volumetric ratio of the transverse reinforcement, along with the increasing specimen size, the peak stress, peak strain and deformation of the post-peak show a down trend, however, the volumetric ratio of the transverse reinforcement is lowered, the decreasing of the peak stress is accelerated, but the decreasing of the deformation is slow down. For specimens with the same volumetric ratio but different configurations of transverse reinforcement, though the transverse reinforcement configuration becomes more complicated, the peak stress of the large size specimen does not improve more than that of the small size. However, the deformation occurs before the stress declines to 85% of peak stress, and the improvement with the grid pattern tie configuration is much greater due to size effect.
文摘The biggest problem in the world as well as in Turkey is to increase efficiency of human capital, which can only be achieved by educating all people in accordance with their capacities and demands. And, the biggest problem in education is finance. In order for everybody to have education, there is a need to develop a finance system which will help overcome the financial problems faced by households or individuals. For this purpose, the participatory, payable, profitable, and potent （4p＇s） insured education system model （IESM） is developed. This paper focuses on principles of the IESM and the analyses of frequency and variance by categories （one-way ANOVA）.
文摘With increasing globalization and Bulgaria＇s accession into the European Union （EU）, the question how to improve the country＇s international competitiveness has become very important and urgent. The aim of the paper is to present the results of a research on the past decade＇s competitiveness of Bulgarian export-oriented sectors, enjoying good positions in local and international markets and having a high development potential. The first part of the article presents a comprehensive review of the concept of competitiveness--its definitions, factors, and measurements at national, industry, and firm level. On the basis of the theoretical considerations, an empirical analysis on the current state of competitiveness of the selected export-oriented industries is performed. These include metallurgy, machine building, chemicals, clothing and textiles, furniture, wine production, tobacco, and food processing. The research answers the following questions： What are the major competitive advantages of Bulgarian export-oriented industries on the world market？ What are their disadvantages？ How did they change over the period 2002-2012, and what steps should be taken to meet the challenges？ The employed methods of analysis are both quantitative--calculating various production, trade, and price indices, and qualitative--carrying out a survey among top managers of firms operating in the selected industries across all the regions of the country. Results show that the country＇s competitiveness on international level has gradually improved but still remains at a comparatively low level as Bulgarian producers compete mostly on the price, invest very little in research and development （R＆D）, rely on low labor costs, and produce goods with low added value. The paper looks into the specific challenges to competitiveness faced by different sectors and the implications of addressing them. In conclusion, it puts forward some recommendations for boosting Bulgaria＇s international competitiveness which are aimed at key stakeholders： companies, central and local government, and institutions promoting cooperation.
文摘In this paper, the general idea and quality assurance for the teaching quality management system of higher vocational colleges are proposed. A teaching quality management system for higher vocational colleges is constructed and studied to help these schools clearly know the development ideas and accordingly improve the core school competitiveness, and eventually promote a continuous long-term development.
