"全北京,向上看",就这一句话,让多数人知道了世贸天阶的存在。而北京奥运会的举办,作为9大特色商业街之一的世贸天阶再次闯进了人们的视线。世贸天阶 CEO 褚梅灵说:"奥运不仅让我们的知名度大幅提升,销售业绩也很让人欣..."全北京,向上看",就这一句话,让多数人知道了世贸天阶的存在。而北京奥运会的举办,作为9大特色商业街之一的世贸天阶再次闯进了人们的视线。世贸天阶 CEO 褚梅灵说:"奥运不仅让我们的知名度大幅提升,销售业绩也很让人欣喜,据初步统计,销售额同比增长了20%左右。""全北京向上看"的由来是世贸天阶花2.展开更多
The measured data of vibrations induced by excavation of deep-buried cavern and open pit with method of bench blasting were analyzed by Fourier Transform and Wavelet Transform,and the characteristics of vibrations ind...The measured data of vibrations induced by excavation of deep-buried cavern and open pit with method of bench blasting were analyzed by Fourier Transform and Wavelet Transform,and the characteristics of vibrations induced under these two circumstances were studied.It is concluded that with the similar rock condition and drilling-blasting parameters,vibration induced by bench blasting in deep-buried cavern has a higher main frequency and more scattered energy distribution than that in open pit.The vibration induced by bench blasting in open pit is mainly originated from the blast load,while the vibration induced by bench blasting in deep-buried cavern is the superposition of vibrations induced by blast load and transient release of in-situ stress.The vibration induced by transient release of in-situ stress increases with the stress level.展开更多
This study is to integrate pest management （IPM） of maize insect pest. The paper reports the current condition of species diversity of maize field in Nanning, Guangxi Province. All exper/mcntal materials were collec...This study is to integrate pest management （IPM） of maize insect pest. The paper reports the current condition of species diversity of maize field in Nanning, Guangxi Province. All exper/mcntal materials were collected dur/ng the stages of tasseling, blister, milk, maturity and after reaping respectively from 5 plots from April to July, 2007. The Shannon-Wiener index（H）, Simpson index（H＇）, Brillouin index（J）, species evenness（E） and richness index （Dmc） were used into analysis of abundance and distribution characteristics of communities and populations of major arthropods in maize fields. Result showed that a total of 19 arthropods, belonged to 10 orders and 18 families, were obtained from maize fields. Of which there are 12 pest insects, 3 natural enemy insects, 2 spiders and 2 middle insects. All of the community diversity indices were the highest in maize fields after reaping. No significant difference was found between other 4 various stages i.t. tasseling, blister, milk and maturity stages. The results of this study will help to carry out the IPM of maize field pest insect.展开更多
In this paper, for a sustainable building in a Mediterranean climate areas, the relation between envelope and energy is discussed. The relation between envelopes and energy has been considered in all the phases of the...In this paper, for a sustainable building in a Mediterranean climate areas, the relation between envelope and energy is discussed. The relation between envelopes and energy has been considered in all the phases of the life building （construction phase and during operation）. This has been made through global assessment of massive envelopes （with or without insulation） realized with blocks of different materials： natural stone, concrete and brick. For these types of envelope the thermal comfort of the rooms, the energy requirement for cooling and heating, economic and environmental aspects （costs and embodied energy） in the life cycle of the building have been studied.展开更多
文摘"全北京,向上看",就这一句话,让多数人知道了世贸天阶的存在。而北京奥运会的举办,作为9大特色商业街之一的世贸天阶再次闯进了人们的视线。世贸天阶 CEO 褚梅灵说:"奥运不仅让我们的知名度大幅提升,销售业绩也很让人欣喜,据初步统计,销售额同比增长了20%左右。""全北京向上看"的由来是世贸天阶花2.
基金Project(2010CB732003) supported by the National Basic Research Program of ChinaProjects(50725931,50779050 and 50909077) supported by the National Natural Science Foundation of China
文摘The measured data of vibrations induced by excavation of deep-buried cavern and open pit with method of bench blasting were analyzed by Fourier Transform and Wavelet Transform,and the characteristics of vibrations induced under these two circumstances were studied.It is concluded that with the similar rock condition and drilling-blasting parameters,vibration induced by bench blasting in deep-buried cavern has a higher main frequency and more scattered energy distribution than that in open pit.The vibration induced by bench blasting in open pit is mainly originated from the blast load,while the vibration induced by bench blasting in deep-buried cavern is the superposition of vibrations induced by blast load and transient release of in-situ stress.The vibration induced by transient release of in-situ stress increases with the stress level.
文摘This study is to integrate pest management （IPM） of maize insect pest. The paper reports the current condition of species diversity of maize field in Nanning, Guangxi Province. All exper/mcntal materials were collected dur/ng the stages of tasseling, blister, milk, maturity and after reaping respectively from 5 plots from April to July, 2007. The Shannon-Wiener index（H）, Simpson index（H＇）, Brillouin index（J）, species evenness（E） and richness index （Dmc） were used into analysis of abundance and distribution characteristics of communities and populations of major arthropods in maize fields. Result showed that a total of 19 arthropods, belonged to 10 orders and 18 families, were obtained from maize fields. Of which there are 12 pest insects, 3 natural enemy insects, 2 spiders and 2 middle insects. All of the community diversity indices were the highest in maize fields after reaping. No significant difference was found between other 4 various stages i.t. tasseling, blister, milk and maturity stages. The results of this study will help to carry out the IPM of maize field pest insect.
文摘In this paper, for a sustainable building in a Mediterranean climate areas, the relation between envelope and energy is discussed. The relation between envelopes and energy has been considered in all the phases of the life building （construction phase and during operation）. This has been made through global assessment of massive envelopes （with or without insulation） realized with blocks of different materials： natural stone, concrete and brick. For these types of envelope the thermal comfort of the rooms, the energy requirement for cooling and heating, economic and environmental aspects （costs and embodied energy） in the life cycle of the building have been studied.
