This paper highlights the type, distribution and area of wetlands in China, reviews the progress and achievements made in wetland research and expounds the status quo of wetland utilization in China. It also analyses ...This paper highlights the type, distribution and area of wetlands in China, reviews the progress and achievements made in wetland research and expounds the status quo of wetland utilization in China. It also analyses emphatically the problems existing in wetland utilization, points out the importance of wetland protection, and presents suggestions on wetland protection and wetland ecosystem research.展开更多
Grassland is an important part of the economy and development of farmers and herdsmen in grassland areas in China, which can maintain the ecological environment and ensure the national ecological security. Therefore, ...Grassland is an important part of the economy and development of farmers and herdsmen in grassland areas in China, which can maintain the ecological environment and ensure the national ecological security. Therefore, China needs to strengthen the protection of grassland and reasonable development and utilization of grassland resources, to create grassland natural park. But at present, there are still some problems in the creation of grassland park, which seriously damage the grassland ecological environment. In order to create grassland natural park, maintain the grassland ecological environment and protect natural resources, we need to use a reasonable and scientific way to protect grassland resources.展开更多
Environment is the basic premise of human livelihood and development. The environment provides the necessary resources and conditions for our livelihood and development. With the development of social economy, environ...Environment is the basic premise of human livelihood and development. The environment provides the necessary resources and conditions for our livelihood and development. With the development of social economy, environmental problems have been put on the agenda of relevant departments of various countries as an unavoidable and important issue. Protecting the environment, reducing environmental pollution and curbing the trend of ecological deterioration have become an important task of social management of relevant departments. For China, environmental protection is a basic national policy. It is an important and arduous task to solve the prominent environmental problems in the country, promote the coordinated development of economy, society and environment and implement the sustainable development strategy. China ecological and environmental protection association pointed out that we must not follow the old path of "pollution before management" in western countries, but should put environmental protection in an important position in advance. For civil construction, the waste of tunnel slag is one of the important factors affecting soil and water conservation in mountainous areas. Reasonable digestion and utilization of tunnel slag is one of the important measures to protect the ecological environment in mountainous areas.展开更多
By integrating photoinduced electron transfer（PET） into the design of functional bioluminogenic probes,Urano and his coworkers recently developed a new rational design strategy, BioLeT. It is expected that this BioL...By integrating photoinduced electron transfer（PET） into the design of functional bioluminogenic probes,Urano and his coworkers recently developed a new rational design strategy, BioLeT. It is expected that this BioLeT strategy will enable us to design and develop new bioluminescence probes for detecting various biomolecules with no catalytic or reactive activity.展开更多
The simulation of 295/80R22. 5 tire building process from tire building to curing was developed using ABAQUS software,which covered four stages: gluing of components on main drum,gluing of components on auxiliary drum...The simulation of 295/80R22. 5 tire building process from tire building to curing was developed using ABAQUS software,which covered four stages: gluing of components on main drum,gluing of components on auxiliary drum,building process of green tire and shaping process of green tire. Results showed that material distribution of the simulated structure had good consistence with the real tire structure. Therefore,the tire building process simulation can be used to judge the rationality of tire construction design and to determine the shapes of different tire components. In order to optimize the construction design,a reverse simulation method was proposed to design the semi-product components such as apex,tread,and shoulder pad. The semi-product components determined by utilizing the reverse simulation method were assembled again into a tire. Results show that the simulated material distribution is consistent with the material distribution of design tire,which proves effectiveness and reliability of the reverse simulation method.展开更多
文摘This paper highlights the type, distribution and area of wetlands in China, reviews the progress and achievements made in wetland research and expounds the status quo of wetland utilization in China. It also analyses emphatically the problems existing in wetland utilization, points out the importance of wetland protection, and presents suggestions on wetland protection and wetland ecosystem research.
文摘Grassland is an important part of the economy and development of farmers and herdsmen in grassland areas in China, which can maintain the ecological environment and ensure the national ecological security. Therefore, China needs to strengthen the protection of grassland and reasonable development and utilization of grassland resources, to create grassland natural park. But at present, there are still some problems in the creation of grassland park, which seriously damage the grassland ecological environment. In order to create grassland natural park, maintain the grassland ecological environment and protect natural resources, we need to use a reasonable and scientific way to protect grassland resources.
文摘Environment is the basic premise of human livelihood and development. The environment provides the necessary resources and conditions for our livelihood and development. With the development of social economy, environmental problems have been put on the agenda of relevant departments of various countries as an unavoidable and important issue. Protecting the environment, reducing environmental pollution and curbing the trend of ecological deterioration have become an important task of social management of relevant departments. For China, environmental protection is a basic national policy. It is an important and arduous task to solve the prominent environmental problems in the country, promote the coordinated development of economy, society and environment and implement the sustainable development strategy. China ecological and environmental protection association pointed out that we must not follow the old path of "pollution before management" in western countries, but should put environmental protection in an important position in advance. For civil construction, the waste of tunnel slag is one of the important factors affecting soil and water conservation in mountainous areas. Reasonable digestion and utilization of tunnel slag is one of the important measures to protect the ecological environment in mountainous areas.
基金Financial support from the National Program on Key Basic Research Project(No.2013CB734000)the Program of New Century Excellent Talents in University(No.NCET-11-0306)+1 种基金the Shandong Natural Science Foundation(No.JQ201019)the Fundamental Research Funds of Shandong University(No.2014JC008)
文摘By integrating photoinduced electron transfer（PET） into the design of functional bioluminogenic probes,Urano and his coworkers recently developed a new rational design strategy, BioLeT. It is expected that this BioLeT strategy will enable us to design and develop new bioluminescence probes for detecting various biomolecules with no catalytic or reactive activity.
基金National Natural Science Foundation of China (No.51405201)
文摘The simulation of 295/80R22. 5 tire building process from tire building to curing was developed using ABAQUS software,which covered four stages: gluing of components on main drum,gluing of components on auxiliary drum,building process of green tire and shaping process of green tire. Results showed that material distribution of the simulated structure had good consistence with the real tire structure. Therefore,the tire building process simulation can be used to judge the rationality of tire construction design and to determine the shapes of different tire components. In order to optimize the construction design,a reverse simulation method was proposed to design the semi-product components such as apex,tread,and shoulder pad. The semi-product components determined by utilizing the reverse simulation method were assembled again into a tire. Results show that the simulated material distribution is consistent with the material distribution of design tire,which proves effectiveness and reliability of the reverse simulation method.
