A new species, Pediculaster kaiyangensis Guo ＆ Zhao sp. nov., in the genus Pediculaster Vitzthum, is described, which was collected in stored Chinese medicinal materials Polygala tenuifolia Willd from Kaiyang County,...A new species, Pediculaster kaiyangensis Guo ＆ Zhao sp. nov., in the genus Pediculaster Vitzthum, is described, which was collected in stored Chinese medicinal materials Polygala tenuifolia Willd from Kaiyang County, Guiyang City, Guizhou Province.展开更多
The utilization of caves is a rather rare phenomenon in nonhuman primates, found almost exclusively in those members of the genus Trachypithecus that share a preference for forest on limestone （karst） hills in Vietn...The utilization of caves is a rather rare phenomenon in nonhuman primates, found almost exclusively in those members of the genus Trachypithecus that share a preference for forest on limestone （karst） hills in Vietnam and southern China. Here we report a new case of usage of caves as overnight sleeping shelters by Franqois＇ or black langurs （Trachypithecusfraru;oisi） at Mayanghe National Nature Reserve in Yanhe County, Guizhou Province, China. We tentatively address three possible hypotheses that may account for the use of caves in Francois＇ langurs at Mayanghe： shelter against climatic conditions, acquisition of minerals and protection from predators. utilization展开更多
Ground crack and subsidence were investigated in Kaiyang Phosphorus Mine as an example. Contribution factors to cause ground crack and mining subsidence were studied, including mining method, mining depth and ore thic...Ground crack and subsidence were investigated in Kaiyang Phosphorus Mine as an example. Contribution factors to cause ground crack and mining subsidence were studied, including mining method, mining depth and ore thickness and stope size, dip angle of orebody, geological structure, nature of overburden and water contents, and roof supports, etc. Countermeasures against cracks and subsidence were put forward. The uniaxial compressive strength of compounded phosphorus gypsum after 28 d of curing period was tested to be more than 1 MPa. Phosphorus gypsum can be used as materials for the backfill of stope. By comparison and numerical simulation, cut and fill mining method with middle-deep drilling holes and ore transportation by blasting force was selected as the optimum mining method in Kaiyang Phosphorus Mine.展开更多
In utility power system, electricity demand is being covered largely by fossil fueled power generation, which contributes high level of GHG （greenhouse gas） emission and causes global warming worldwide. In order to ...In utility power system, electricity demand is being covered largely by fossil fueled power generation, which contributes high level of GHG （greenhouse gas） emission and causes global warming worldwide. In order to reduce GHG emission level, most of the countries in the world targeting towards green energy that is power generation from RE （renewable energy） sources. In this paper, it is considered to study prospects of RE sources in particular, solar and wind in Victoria State which are abundant as compared to other sources of renewable. The wind and solar energy feasibility study and sensitivity analysis has been done for Victoria with the aid of HOMER （hybrid optimization model of electric renewable） simulation software. From the study, it has clearly evicted that wind energy combinational HPS （hybrid power system） has more contribution, and high potential than solar PV （photovoltaic） systems for a particular location. This study also investigates the influences of energy storage in the proposed HPS.展开更多
基金supported by the Nomarch Special Talent Fund of Guizhou Province[(2004)07-39]
文摘A new species, Pediculaster kaiyangensis Guo ＆ Zhao sp. nov., in the genus Pediculaster Vitzthum, is described, which was collected in stored Chinese medicinal materials Polygala tenuifolia Willd from Kaiyang County, Guiyang City, Guizhou Province.
文摘The utilization of caves is a rather rare phenomenon in nonhuman primates, found almost exclusively in those members of the genus Trachypithecus that share a preference for forest on limestone （karst） hills in Vietnam and southern China. Here we report a new case of usage of caves as overnight sleeping shelters by Franqois＇ or black langurs （Trachypithecusfraru;oisi） at Mayanghe National Nature Reserve in Yanhe County, Guizhou Province, China. We tentatively address three possible hypotheses that may account for the use of caves in Francois＇ langurs at Mayanghe： shelter against climatic conditions, acquisition of minerals and protection from predators. utilization
基金Projects(50574098, 50404010) supported by the National Natural Science Foundation of China project(05jj10010) supported by the Hunan Provincial Natural Science Foundation of Distinguished Young Scholars
文摘Ground crack and subsidence were investigated in Kaiyang Phosphorus Mine as an example. Contribution factors to cause ground crack and mining subsidence were studied, including mining method, mining depth and ore thickness and stope size, dip angle of orebody, geological structure, nature of overburden and water contents, and roof supports, etc. Countermeasures against cracks and subsidence were put forward. The uniaxial compressive strength of compounded phosphorus gypsum after 28 d of curing period was tested to be more than 1 MPa. Phosphorus gypsum can be used as materials for the backfill of stope. By comparison and numerical simulation, cut and fill mining method with middle-deep drilling holes and ore transportation by blasting force was selected as the optimum mining method in Kaiyang Phosphorus Mine.
文摘In utility power system, electricity demand is being covered largely by fossil fueled power generation, which contributes high level of GHG （greenhouse gas） emission and causes global warming worldwide. In order to reduce GHG emission level, most of the countries in the world targeting towards green energy that is power generation from RE （renewable energy） sources. In this paper, it is considered to study prospects of RE sources in particular, solar and wind in Victoria State which are abundant as compared to other sources of renewable. The wind and solar energy feasibility study and sensitivity analysis has been done for Victoria with the aid of HOMER （hybrid optimization model of electric renewable） simulation software. From the study, it has clearly evicted that wind energy combinational HPS （hybrid power system） has more contribution, and high potential than solar PV （photovoltaic） systems for a particular location. This study also investigates the influences of energy storage in the proposed HPS.
