The increase in car ownership brought about by energy shortages,and environmental crises became more acute.The most effective way to achieve energy saving and emission reduction of car is to improve engine efficiency....The increase in car ownership brought about by energy shortages,and environmental crises became more acute.The most effective way to achieve energy saving and emission reduction of car is to improve engine efficiency.In addition to that,lightweight body is the key.Aluminum,magnesium alloy as significant materials of lightweight,and the application amount in the car body is a significant upward trend.However,there is high cost of material,with immature applied technology and a series of bottleneck problems.All of them affect general application of lightweight materials. This paper focuses on forming process issues for aluminum,magnesium alloy and the solutions to achieve.展开更多
The energetic sector is necessary for productive activity in the world, because energy is one of the most essential economic resources. The energy, at a social-historic level, always has been relevant for the developm...The energetic sector is necessary for productive activity in the world, because energy is one of the most essential economic resources. The energy, at a social-historic level, always has been relevant for the development of any society, and as a country advanced in this field, there is an important increase of their energetic needs, in such a way that all energy supplies are considered as a national security strategy for many countries. This element, the natural resources of their own, their existence and good management are and will be the key for the coming years and decades to achieve the national security in the energetic field, economic development, and environment. This last argument has a great importance for the issues that are generated by an environmental crisis and the greenhouse effect in the world, due to the consumption of energy from oil and coal. All these justify the relevance of performing an analysis of the problems between the energy development and the environment, and both issues are presented in this paper from the economic history point of view.展开更多
Nowadays human society enters the 21st century, with the rapid economic and technological development, people＇s material and spiritual requirements has got great satisfaction. However, natural environmental damage br...Nowadays human society enters the 21st century, with the rapid economic and technological development, people＇s material and spiritual requirements has got great satisfaction. However, natural environmental damage brought by us is also accelerating. Natural disasters happen frequently, including ecological degradation and deterioration, energy resources crisis, greenhouse effect, earthquakes, tsunamis, volcanoes etc. The global crisis has once again waken-up call to mankind. How to properly solve these crises had become a common and urgent responsibility of mankind. This paper will mainly discuss and seek some new potential methods in solving energy crisis and environmental problems from the perspective of automotive and architecture design. As an architect, how to avoid light pollution and reduce heat absorption of roof, increasing heat reflectance of roof are becoming their main and urgent responsibilities. On the other hand, reducing greenhouse effect, researching and developing new low-carbon, low-emission fuel sources are also becoming automotive designers＇ obligations. Living in harmony with nature ＆ earth is becoming the common human themes of the 21 st century.展开更多
文摘The increase in car ownership brought about by energy shortages,and environmental crises became more acute.The most effective way to achieve energy saving and emission reduction of car is to improve engine efficiency.In addition to that,lightweight body is the key.Aluminum,magnesium alloy as significant materials of lightweight,and the application amount in the car body is a significant upward trend.However,there is high cost of material,with immature applied technology and a series of bottleneck problems.All of them affect general application of lightweight materials. This paper focuses on forming process issues for aluminum,magnesium alloy and the solutions to achieve.
文摘The energetic sector is necessary for productive activity in the world, because energy is one of the most essential economic resources. The energy, at a social-historic level, always has been relevant for the development of any society, and as a country advanced in this field, there is an important increase of their energetic needs, in such a way that all energy supplies are considered as a national security strategy for many countries. This element, the natural resources of their own, their existence and good management are and will be the key for the coming years and decades to achieve the national security in the energetic field, economic development, and environment. This last argument has a great importance for the issues that are generated by an environmental crisis and the greenhouse effect in the world, due to the consumption of energy from oil and coal. All these justify the relevance of performing an analysis of the problems between the energy development and the environment, and both issues are presented in this paper from the economic history point of view.
文摘Nowadays human society enters the 21st century, with the rapid economic and technological development, people＇s material and spiritual requirements has got great satisfaction. However, natural environmental damage brought by us is also accelerating. Natural disasters happen frequently, including ecological degradation and deterioration, energy resources crisis, greenhouse effect, earthquakes, tsunamis, volcanoes etc. The global crisis has once again waken-up call to mankind. How to properly solve these crises had become a common and urgent responsibility of mankind. This paper will mainly discuss and seek some new potential methods in solving energy crisis and environmental problems from the perspective of automotive and architecture design. As an architect, how to avoid light pollution and reduce heat absorption of roof, increasing heat reflectance of roof are becoming their main and urgent responsibilities. On the other hand, reducing greenhouse effect, researching and developing new low-carbon, low-emission fuel sources are also becoming automotive designers＇ obligations. Living in harmony with nature ＆ earth is becoming the common human themes of the 21 st century.
