As a modern concept,the word "state"dates from Europe of the 16th century and matures at the end of the 18th century.The concept of state is accompanied by the concept of sovereignty; if there is no sovereig...As a modern concept,the word "state"dates from Europe of the 16th century and matures at the end of the 18th century.The concept of state is accompanied by the concept of sovereignty; if there is no sovereignty,there is no state at all.This paper studies the key writers in the history of the western political thoughts in modern times.It can be concluded that constitutional democracy is the result of seeking balance between"being governed"and"being non- oppressed".On the one hand,it ensures that sovereignty will not be threatened,and on the other hand,it avoids centralization of authority.展开更多
The recent steel boom was characterized by a steep increase in world wide hot-rolling capacity.Still new hot-rolling mills are scheduled to start production during the coming years.Existing plants,which may be in oper...The recent steel boom was characterized by a steep increase in world wide hot-rolling capacity.Still new hot-rolling mills are scheduled to start production during the coming years.Existing plants,which may be in operation since decades,have to compete with brand-new equipment and technology in terms of product quality and production efficiency.SMS Siemag have developed and successfully applied overall modernization concepts for hot-rolling mills as well as well-defined upgrade packages dedicated particularly to the improvement of product quality and the enlargement of product range.This paper describes the general methods of how SMS Siemag approaches hot-rolling mill modernization projects for maximum customer benefit and describes examples for overall modernization concepts as well as for powerful upgrade packages which have been put into operation during the recent years.展开更多
文摘As a modern concept,the word "state"dates from Europe of the 16th century and matures at the end of the 18th century.The concept of state is accompanied by the concept of sovereignty; if there is no sovereignty,there is no state at all.This paper studies the key writers in the history of the western political thoughts in modern times.It can be concluded that constitutional democracy is the result of seeking balance between"being governed"and"being non- oppressed".On the one hand,it ensures that sovereignty will not be threatened,and on the other hand,it avoids centralization of authority.
文摘The recent steel boom was characterized by a steep increase in world wide hot-rolling capacity.Still new hot-rolling mills are scheduled to start production during the coming years.Existing plants,which may be in operation since decades,have to compete with brand-new equipment and technology in terms of product quality and production efficiency.SMS Siemag have developed and successfully applied overall modernization concepts for hot-rolling mills as well as well-defined upgrade packages dedicated particularly to the improvement of product quality and the enlargement of product range.This paper describes the general methods of how SMS Siemag approaches hot-rolling mill modernization projects for maximum customer benefit and describes examples for overall modernization concepts as well as for powerful upgrade packages which have been put into operation during the recent years.