This paper discusses on the findings of a survey on the present perspective of quality mission among the ma nufacturing practitioners in Hong Kong. Further, the quality approaches and techniques adopted in Hong Kong ...This paper discusses on the findings of a survey on the present perspective of quality mission among the ma nufacturing practitioners in Hong Kong. Further, the quality approaches and techniques adopted in Hong Kong manufacturing to improve quality are looked into. The results of this study reveal that the present view on quality is to focus on customers, to improve the operational processes and to increase the total involvement among the staff in the company. In addition, it is found that the difference in working experience and types of industry would affect the perspective of quality as an individual and as a company to a certain extent. Moreover, it is interesting to find that SPC and QCC are widely used in manufacturing for controlling operational processes. TQM and ISO quality system are often adopted in large electronics companies. However, zero defect program is not common in the three industries while benchmarking emerged as a useful technique.展开更多
As one of the top ten Chinese teas, Longjing Green Tea is famous for its green tea leaves, sweet taste, pleasant aroma and beautiful shape. Besides of using as drinks, Longjing tea leaves can be applied as spice in Ch...As one of the top ten Chinese teas, Longjing Green Tea is famous for its green tea leaves, sweet taste, pleasant aroma and beautiful shape. Besides of using as drinks, Longjing tea leaves can be applied as spice in Chinese cuisine for its particular taste and function. Under the background of pursuing healthy cuisine, the development of organic Longjing tea and advocate of Chinese tea culture have great economic and culture significance.展开更多
Research on structure of tectonically deformed coals(TDC) is a key issue in coal and gas outburst prevention and coalbed methane(CBM) exploitation.This paper presents a summary on the research progress in TDC's st...Research on structure of tectonically deformed coals(TDC) is a key issue in coal and gas outburst prevention and coalbed methane(CBM) exploitation.This paper presents a summary on the research progress in TDC's structural-genetic classification,tectonic strain influence on coal microstructure,coal porosity system,coal chemical structure and constituents,and their relationship with the excess coalbed methane.Previous studies suggested that tectonic deformation had significant influence on coal microstructure,coal super microstructure,and even chemical macromolecular structure.The main mechanisms of coal deformation are the tectonic stress degradation and polycondensation metamorphism(dynamical metamorphism).Besides,under different deformation mechanisms,the ultra-and micro-structure and chemical constituents of TDC presented distinct characteristics.Based on these achievements,we propose one possible evolutionary trend of TDC with different deformation mechanisms,and suggest that the coal and gas outburst in the TDC,especially in the mylonitic coals,may be not only controlled by geological structure,but also influenced by the tectonic stress degradation of ductile deformation.Therefore,further study on TDC should be focused on the controlling mechanism of deformation on structure and composition of coal,generation conditions and occurrence state of excess coalbed methane from deformation mechanism of coal.展开更多
文摘This paper discusses on the findings of a survey on the present perspective of quality mission among the ma nufacturing practitioners in Hong Kong. Further, the quality approaches and techniques adopted in Hong Kong manufacturing to improve quality are looked into. The results of this study reveal that the present view on quality is to focus on customers, to improve the operational processes and to increase the total involvement among the staff in the company. In addition, it is found that the difference in working experience and types of industry would affect the perspective of quality as an individual and as a company to a certain extent. Moreover, it is interesting to find that SPC and QCC are widely used in manufacturing for controlling operational processes. TQM and ISO quality system are often adopted in large electronics companies. However, zero defect program is not common in the three industries while benchmarking emerged as a useful technique.
文摘As one of the top ten Chinese teas, Longjing Green Tea is famous for its green tea leaves, sweet taste, pleasant aroma and beautiful shape. Besides of using as drinks, Longjing tea leaves can be applied as spice in Chinese cuisine for its particular taste and function. Under the background of pursuing healthy cuisine, the development of organic Longjing tea and advocate of Chinese tea culture have great economic and culture significance.
基金supported by National Natural Science Foundation of China (Grant Nos. 41030422,40972131,40940014)National Basic Research Program of China (Grant No. 2009CB219601)
文摘Research on structure of tectonically deformed coals(TDC) is a key issue in coal and gas outburst prevention and coalbed methane(CBM) exploitation.This paper presents a summary on the research progress in TDC's structural-genetic classification,tectonic strain influence on coal microstructure,coal porosity system,coal chemical structure and constituents,and their relationship with the excess coalbed methane.Previous studies suggested that tectonic deformation had significant influence on coal microstructure,coal super microstructure,and even chemical macromolecular structure.The main mechanisms of coal deformation are the tectonic stress degradation and polycondensation metamorphism(dynamical metamorphism).Besides,under different deformation mechanisms,the ultra-and micro-structure and chemical constituents of TDC presented distinct characteristics.Based on these achievements,we propose one possible evolutionary trend of TDC with different deformation mechanisms,and suggest that the coal and gas outburst in the TDC,especially in the mylonitic coals,may be not only controlled by geological structure,but also influenced by the tectonic stress degradation of ductile deformation.Therefore,further study on TDC should be focused on the controlling mechanism of deformation on structure and composition of coal,generation conditions and occurrence state of excess coalbed methane from deformation mechanism of coal.
