Over the years,population growth and industrial development in Hong Kong has caused serious pollution of the environ-ment.To ensure that we will live in a healthy environment,we need to have a broader view of economic...Over the years,population growth and industrial development in Hong Kong has caused serious pollution of the environ-ment.To ensure that we will live in a healthy environment,we need to have a broader view of economic efficiency that incor-porates environmental quality as one of the dimensions of"economic success".This has become an acute problem for theworld in general and Hong Kong in particular.展开更多
Along with the fast development of national economy, environmental issues have become more and more prominent. China has promulgated a series of policies of energy-saving and emission-reduction to
High effect flocculant compound bacteria were screened out with the product bacteria of flocculant in soil. Their system appraising study shows that two were actionomyces and the other was microzyme among the three ba...High effect flocculant compound bacteria were screened out with the product bacteria of flocculant in soil. Their system appraising study shows that two were actionomyces and the other was microzyme among the three bacteria. According to nSrDNA, the three bacteria were marked at a molecule level and the system growth tree was established, ensuring the position of compound bacteria at the molecule level. The purificant which was made of the compound bacteria has spreading value because of its excellent clearing effect for organic and inorganic polluted water.展开更多
E-mail-assisted language teaching is at the fore-front of the advances in educational tools in EFLteaching.But is it possible to create EFL communica-tive environment by E-mail and Internet in Chineseuniversities?Can ...E-mail-assisted language teaching is at the fore-front of the advances in educational tools in EFLteaching.But is it possible to create EFL communica-tive environment by E-mail and Internet in Chineseuniversities?Can we totally adopt CA by E-mail andInternet in Western countries into Chinese universi-ties?It is evident that Completely transferring it toChinese educational context is irrational and will ulti-mately fail.Thus,success depends on reconciling E-mail-assisted EFL teaching with traditional Chineseapproaches.This paper is designed to make perspec-tives on this reconciliation,and presents some disad-vantages of using E-mail and Internet in teaching.展开更多
Although sudden nocturnal warming events near the earth＇s surface in Australia and the United States have been examined in previous studies, similar events observed occasionally over the Loess Plateau of Northwest Ch...Although sudden nocturnal warming events near the earth＇s surface in Australia and the United States have been examined in previous studies, similar events observed occasionally over the Loess Plateau of Northwest China have not yet been investigated. The factors that lead to these warming events in such areas with their unique topography and climate remain not clear. To understand the formation mechanisms and associated thermal and dynamical features, a nocturnal warming event recorded in Gansu Province （northwest of the Loess Plateau） in June 2007 was investigated by using observations and model simulations with the Weather Research and Forecasting （WRF） model. Observations showed that this near-surface warming event lasted for 4 h and the temperature increased by 2.5℃. During this event, a decrease in humidity occurred simultaneously with the increase of temperature. The model simulation showed that the nocturnal warming was caused mainly by the transport of warmer and drier air aloft downward to the surface through enhanced vertical mixing. Wind shear played an important role in inducing the elevated vertical mixing, and it was enhanced by the continuous development of the atmospheric baroclinicity, which converted more potential energy to kinetic energy.展开更多
文摘Over the years,population growth and industrial development in Hong Kong has caused serious pollution of the environ-ment.To ensure that we will live in a healthy environment,we need to have a broader view of economic efficiency that incor-porates environmental quality as one of the dimensions of"economic success".This has become an acute problem for theworld in general and Hong Kong in particular.
文摘Along with the fast development of national economy, environmental issues have become more and more prominent. China has promulgated a series of policies of energy-saving and emission-reduction to
基金the "973" Project of China ( No 2004CB418505) Innovation Foundation of Jilin University ( No419070200045)
文摘High effect flocculant compound bacteria were screened out with the product bacteria of flocculant in soil. Their system appraising study shows that two were actionomyces and the other was microzyme among the three bacteria. According to nSrDNA, the three bacteria were marked at a molecule level and the system growth tree was established, ensuring the position of compound bacteria at the molecule level. The purificant which was made of the compound bacteria has spreading value because of its excellent clearing effect for organic and inorganic polluted water.
文摘E-mail-assisted language teaching is at the fore-front of the advances in educational tools in EFLteaching.But is it possible to create EFL communica-tive environment by E-mail and Internet in Chineseuniversities?Can we totally adopt CA by E-mail andInternet in Western countries into Chinese universi-ties?It is evident that Completely transferring it toChinese educational context is irrational and will ulti-mately fail.Thus,success depends on reconciling E-mail-assisted EFL teaching with traditional Chineseapproaches.This paper is designed to make perspec-tives on this reconciliation,and presents some disad-vantages of using E-mail and Internet in teaching.
基金Supported by the National Natural Science Foundation of China(41375109)National(Key)Basic Research and Development(973)Program of China(2014CB441406)Key Laboratory of Meteorological Disaster of Ministry of Education,Nanjing University of Information Science&Technology(KLME1412)
文摘Although sudden nocturnal warming events near the earth＇s surface in Australia and the United States have been examined in previous studies, similar events observed occasionally over the Loess Plateau of Northwest China have not yet been investigated. The factors that lead to these warming events in such areas with their unique topography and climate remain not clear. To understand the formation mechanisms and associated thermal and dynamical features, a nocturnal warming event recorded in Gansu Province （northwest of the Loess Plateau） in June 2007 was investigated by using observations and model simulations with the Weather Research and Forecasting （WRF） model. Observations showed that this near-surface warming event lasted for 4 h and the temperature increased by 2.5℃. During this event, a decrease in humidity occurred simultaneously with the increase of temperature. The model simulation showed that the nocturnal warming was caused mainly by the transport of warmer and drier air aloft downward to the surface through enhanced vertical mixing. Wind shear played an important role in inducing the elevated vertical mixing, and it was enhanced by the continuous development of the atmospheric baroclinicity, which converted more potential energy to kinetic energy.
