on the basis of the analysis of the factors causing the cotton bollworm outbreaks and control failure, the authors recommend that the fundamental strategy for solving the problem of cotton bollworms in China should be...on the basis of the analysis of the factors causing the cotton bollworm outbreaks and control failure, the authors recommend that the fundamental strategy for solving the problem of cotton bollworms in China should be to conduct area-wide unified controls rather than depend on insecticides. The unified control system is the guarantee for Integrated Pest Management (IPM) for small-scale crop owners at present. So the authors call on policymakers to put stress on organizing individual growers to carry out area wide unified controls.展开更多
A genetic algorithm is proposed to optimize the yaw control system used for the stable and efficient operation of turbines in wind power plants.In particular,the factors that produce yaw static deviation are analyzed....A genetic algorithm is proposed to optimize the yaw control system used for the stable and efficient operation of turbines in wind power plants.In particular,the factors that produce yaw static deviation are analyzed.Then,the sought optimization method for the yaw static deviation of the wind turbine is implemented by using a lidar wind meter in the engine room in order to solve the low accuracy problem caused by yaw static deviation.It is shown that fuzzy control can overcome problematic factors such as the randomness of wind direction and track the change of wind direction accurately.Power control implementation is simple,as only the voltage and current of the generator need to be measured.展开更多
Considering the WHO warning about the emergence of a’post-antibiotic’era during the 21st century in which common infections and minor injuries will have a dramatic impact on human death toll,search for new potential...Considering the WHO warning about the emergence of a’post-antibiotic’era during the 21st century in which common infections and minor injuries will have a dramatic impact on human death toll,search for new potential antibacterial drug targets became a necessary need.Targets that are extensively explored concern the modulation展开更多
THE BASIC SITUATION The Chinese govemment has always been devoting a great deal of attention to the research of diarrhoea prevention and control. Early in 1950’s we wiped out the classical cholera which had been epid...THE BASIC SITUATION The Chinese govemment has always been devoting a great deal of attention to the research of diarrhoea prevention and control. Early in 1950’s we wiped out the classical cholera which had been epidemic over a century in old China, brought typhoid fever and dysentry under control by preventing them from spreading in large areas, and reduced to different extents the incidence and mortality of other types of diarrhoea. Since China is a country with a vast territory and a large population, and is greatly varied展开更多
文摘on the basis of the analysis of the factors causing the cotton bollworm outbreaks and control failure, the authors recommend that the fundamental strategy for solving the problem of cotton bollworms in China should be to conduct area-wide unified controls rather than depend on insecticides. The unified control system is the guarantee for Integrated Pest Management (IPM) for small-scale crop owners at present. So the authors call on policymakers to put stress on organizing individual growers to carry out area wide unified controls.
文摘A genetic algorithm is proposed to optimize the yaw control system used for the stable and efficient operation of turbines in wind power plants.In particular,the factors that produce yaw static deviation are analyzed.Then,the sought optimization method for the yaw static deviation of the wind turbine is implemented by using a lidar wind meter in the engine room in order to solve the low accuracy problem caused by yaw static deviation.It is shown that fuzzy control can overcome problematic factors such as the randomness of wind direction and track the change of wind direction accurately.Power control implementation is simple,as only the voltage and current of the generator need to be measured.
文摘Considering the WHO warning about the emergence of a’post-antibiotic’era during the 21st century in which common infections and minor injuries will have a dramatic impact on human death toll,search for new potential antibacterial drug targets became a necessary need.Targets that are extensively explored concern the modulation
文摘THE BASIC SITUATION The Chinese govemment has always been devoting a great deal of attention to the research of diarrhoea prevention and control. Early in 1950’s we wiped out the classical cholera which had been epidemic over a century in old China, brought typhoid fever and dysentry under control by preventing them from spreading in large areas, and reduced to different extents the incidence and mortality of other types of diarrhoea. Since China is a country with a vast territory and a large population, and is greatly varied
