Chinese Geographical Science,2014年24(01):60-70 ISSN：1002-0063
[Qi Zengxiang] Univ South China, Coll Design & Art, Hengyang 421001, Peoples R China.;[Vina, Andres; Liu Jianguo; Liu Wei] Michigan State Univ, Dept Fisheries & Wildlife, Ctr Syst Integrat & Sustainabil, E Lansing, MI 48823 USA.;[Ouyang Zhiyun; Xu Weihua] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Reg & Urban Ecol, Beijing 100085, Peoples R China.;[Wan Hui] World Wide Fund Nat WWF Xian Programme Off, Xian 710075, Peoples R China.
[Xu, WH] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, State Key Lab Reg & Urban Ecol, Beijing 100085, Peoples R China.
giant panda;habitat suitability;Maximum Entropy (MAXENT);nature reserve network;surrogate species
Many nature reserves are established to protect the habitat needs of particular endangered species of interest but their effectiveness for protecting other species is questionable. In this study, this effectiveness was evaluated in a nature reserve network located in the Qinling Mountains, Shaanxi Province, China. The network of reserves was established mainly for the conservation of the giant panda, a species considered as a surrogate for the conservation of many other endangered species in the region. The habitat suitability of nine protected species, including the giant panda, was modeled by using Maximum Entropy (MAXENT) and their spatial congruence was analyzed. Habitat suitability of these species was also overlapped with nature reserve boundaries and their management zones (i.e.,core, buffer and experimental zones). Results show that in general the habitat of the giant panda constitutes a reasonable surrogate of the habitat of other protected species, and giant panda reserves protect a relatively high proportion of the habitat of other protected species. Therefore, giant panda habitat conservation also allows the conservation of the habitat of other protected species in the region. However,a large area of suitable habitat was excluded from the nature reserve network. In addition, four species exhibited a low proportion of highly suitable habitat inside the core zones of nature reserves. It suggests that a high proportion of suitable habitat of protected species not targeted for conservation is located in the experimental and buffer zones, thus, is being affected by human activities. To increase their conservation effectiveness, nature reserves and their management zones need to be re-examined in order to include suitable habitat of more endangered species. The procedures described in this study can be easily implemented for the conservation of many endangered species not only in China but in many other parts of the world.
In order to guarantee the quality of laboratory animal, the nation codes regulate the pressure differential between indoor and outdoor, the air environment of the laboratory animal room under different pressure differential were simulated and analyzed under different wind velocity by simulation software in this paper. The follow conclusions were draw: (1) when face to outside natural wind, the maximal pressure is always on 1/4 to 1/3 heights to the top. (2) The relationship between the windward side maximal pressure and natural wind velocity is P(max) = 0.5842u(2) + 0.1099u - 0.0555. (3) The outdoor wind velocity of most area in China are less than 7m/s, for the isolated environment, it is safety when the pressure differential is +40Pa, but for the barrier environment, it is dangerous when the pressure differential is +20Pa, especially for the coastal area. When the laboratory animal room was built, the pressure differential should be adjust and accordance with the local wind velocity.
With medical image three-dimensional reconstruction software reconstruct three-dimensional model of the pelvic, Not only the principle of aiming device design is introduced, but also deduces the relationship between the measurements of pre-operative pictures and the angles of drilling ringers of the aiming device, and also compiles applied software for numeration, By the virtual prototype on aiming device of setting screws in acetabulum anterior column, the doctors can simulate the operative environment before operation, The study provides a dependable approach to advance the accuracy rate during operation of acetabulum anterior column setting screws deeply.
The teaching building is located in the hot summer and cold winter region in China, after the teaching building built, due to use of row window and poorly considers the indoor comfort, it is very hot in summer. This study measured temperature, pressure of the teaching building and take the measurements as initial boundary conditions, use CFD software simulates the indoor air environment, thermal environment, the indoor thermal comfort index (PMV-PPD) of it, through the simulation, the indoor environment of the teaching building need a greatly improved, this study provides reference for the teaching building of ecological green design and improvement.
Liu, Y. Q.;Li, M. W.;Jin, L.;Jiang, X. B.;Qiu, L. P.
[Liu, Y. Q.; Jin, L.] Univ South China, Sch Urban Construct, Hengyang, Peoples R China.;[Li, M. W.] Hitachi Air Conditioning & Refrigerating Prod Gua, Guangzhou, Guangdong, Peoples R China.;[Qiu, L. P.] Shenzhen Dongshen Resource Protect Off, Shenzhen, Peoples R China.;[Jiang, X. B.] Univ South China, Design & Art Sch, Hengyang, Peoples R China.
Screw heat pump units;Single-heat recovery with double-supply system;The heat pump units with three-supply system;Heat pump water heater with single-supply system;The heat pump unit comes with economizer;Heat recovery value
Introduce one cooler manufacturer's several heat recovery schemes of the screw heat pump units, such as single-heat recovery with double-supply system, the heat pump units with three-supply system, heat pump water heater with single-supply system and the heat pump unit comes with energy saver. Respectively calculate the energy saved by each heat recovery scheme. Point out the applicable climate and regions of each scheme and deduce the optimum amount of energy saved in ensured the screw heat pump units' main function circumstances.
[杨知建; 甘德欣; 李涛; 陈希] College of Biological Science and Technology, Hunan Agricultural University, Changsha 410128, China;[王宽; 齐增湘; 李晖; 李涛] College of Design and Art, University of South China, Hengyang 421001, Hunan, China;[陈希] Biological Research Institute of Chenzhou, Chenzhou 423000, Hunan, China