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| 1 | Climate change regionalization in China(1961–2010)显示文摘Since climatic condition is the important foundation for human subsistence and development and the key factor in sustainable development of economy and society, climate change has been a global issue attracting great attentions of politicians, scientists, governments, and the public alike throughout the world. Existing climate regionalization in China aims to characterize the regional differences in climate based on years of the mean value of different climate indexes. However, with the accelerating climate change nowadays, existing climate regionalization cannot represent the regional difference of climate change, nor can it reflect the disasters and environmental risks incurred from climate changes. This paper utilizes the tendency value and fluctuation value of temperature and precipitation from 1961 to 2010 to identify the climate change quantitatively, and completes the climate change regionalization in China(1961–2010) with county administrative regionalization as the unit in combination with China's terrain feature. Level-I regionalization divides China's climate change(1961–2010) into five tendency zones based on the tendency of temperature and precipitation, which are respectively Northeast China-North China warm-dry trend zone, East China-Central China wet-warm trend zone, Southwest China-South China dry-warm trend zone, Southeast Tibet-Southwest China wet-warm trend zone, and Northwest China-Qinghai-Tibet Plateau warm-wet trend zone; level-II regionalization refers to fourteen fluctuation regions based on level-I regionalization according to the fluctuation of temperature and precipitation. | SHI PeiJun SUN Shao WANG Ming LI Ning WANG JingAi JIN YunYun GU XiaoTian YIN WeiXia | 2014 | Science China Earth Sciences2014，57，11： | 22 |
| 2 | Development of Wistar rat model of insulin resistance显示文摘AIM: To establish a simplified and reliable animal model of insulin resistance with low cost in Wistar rats. METHODS: Wistar rats were treated with a high fat emulsion by ig for 10 d. Changes of the diets, drinking and body weight were monitored every day and insulin resistance was evaluated by hyperinsulinemic-euglycemicclamp techniques and short insulin tolerance test using capillary blood glucose. Morphologic changes of liver, fat, skeletal muscles, and pancreatic islets were assessed under light microscope. mRNA expressions of GLUT2 and α-glucosidase in small intestine epithelium, GLUT4 in skeletal muscles and Kir6.2 in beta cell of islets were determined by in situ hybridization.RESULTS: KITT was smaller in treated animals (4.5±0.9)than in untreated control Wistar rats (6.8±1.5), and so was glucose injection rate. Both adipocyte hypertrophy and large pancreatic islets were seen in high fat fed rats,but no changes of skeletal muscles and livers wereobserved. mRNA levels of GLUT2, α-glucosidase in small intestinal epithelium and Kir6.2 mRNA in beta cells of islets increased, whereas that of GLUT4 in skeletal muscles decreased in high fat fed group compared with normal control group.CONCLUSION: An insulin resistance animal model in Wistar rats is established by ig special fat emulsion. | JingAi NingWang MeiYang Zhi-MinDu Yong-ChunZhang Bao-FengYang | 2005 | World Journal of Gastroenterology2005，11，24： | 6 |
| 3 | Effects of Ti addition on the microstructure and mechanical properties of Mg-Zn-Zr-Ca alloys显示文摘The effects of Ti additions(0,0.4,0.6,0.8,1.0,1.2 wt.%)on the microstructure and mechanical properties of as-cast and aging Mg-0.4%Zn-1.0%Zr-1.5%Ca(wt.%)alloys were investigated.The results indicated that minor Ti can effectively refine grains,while excessive Ti addition resulted in the grain coarsening.When the content of Ti was 0.8 wt.%,the as-cast alloy exhibited the finest grain size of 39μm which contributed to the optimal mechanical properties with Brinell hardness of 57.9 HB,ultimate tensile strength of 145 MPa and elongation of 3.2%.After T6 heat treatment,the continuous net-like Mg_(2)Ca and Mg_(6)Zn_(3)Ca_(2)phases changed to uniform massive T phases(ternary Mg-Zn-Ca phases)and dispersive halo-like precipitates(Mg_(2)Ca and Mg_(6)Zn_(3)Ca_(2)phases).The ultimate tensile strengths of the alloy at room temperature(RT),175℃and 200℃were correspondingly improved to 182 MPa,169 MPa and 141 MPa,respectively. | Jingai Chen Yan Sun Jinshan Zhang Weili Cheng Xiaofeng Niu Chunxiang Xu | 2015 | Journal of Magnesium and Alloys2015，3，2： | 4 |
| 4 | Spatiotemporal Changes of Hazard Intensity-Adjusted Population Exposure to Multiple Hazards in Tibet During 1982–2015显示文摘The dynamic changes of population exposure to hazards in high-altitude areas are an important factor in the scientific evaluation of environmental risks. In this study,the hazards of hypoxia, earthquakes, and snowstorms in Tibet were respectively described by the percentage of oxygen at sea level, earthquake intensity, and mean annual maximum snow depth. The rates of population affected by hypoxia, earthquakes, and snowstorms were calculated by chronic mountain sickness and historical disaster data.Based on these, the study examined the change in population exposure to the three hazards and their combinations by hazard intensity level at the 1 km 9 1 km grid scale in1982–2015. The results show that population exposures to hypoxia, earthquakes, and snowstorms were about 745 thousand, 97 thousand, and 168 thousand in 2015,respectively, among a total population in Tibet of 3.24 million. These exposures were mainly concentrated in the3400–5000 m above sea level zone. The population exposed to hypoxia and earthquakes showed a rising trend from 1982 to 2015, while the population exposed tosnowstorms decreased after 2000 due to reduced snowstorm intensity. Hypoxia-earthquake and hypoxia-snowstorm are the main multiple hazard combinations that people in Tibet suffered from and their personátime exposures were estimated at around 842 thousand and 913 thousand in 2015, respectively, with an average annual increase of 1.7% and 1.3%. Hypoxia is the most important health risk in Tibet. The areas of high personátime exposure to multiple hazards of hypoxia-earthquake-snowstorm are the key areas for strengthening integrated risk governance. | Anyu Zhang Jingai Wang Yao Jiang Yanqiang Chen Peijun Shi | 2018 | International Journal of Disaster Risk Science2018，9，4： | 3 |
| 5 | Inhibition of small-intestinal sugar absorption mediated by sodium orthovanadate Na_3VO_4 in rats and its mechanisms显示文摘AIM: To investigate the inhibitory effects of sodium orthovanadate on small-intestinal glucose and maltose absorption in rats and its mechanism.METHODS: Normal Wistar rats were lavaged with sodium orthovanadate (16 mg/kg, 4 mg/kg and 1 mg/kg) for 6 d.Blood glucose values were measured after fasting and 0.5, 1, 1.5 and 2 h after glucose and maltose feeding with oxidation-enzyme method, α-glucosidase was abstracted from the upper small intestine, and its activity was examined.mRNA expression of α-glucosidase and glucose-transporter 2 (GLUT2) in epithelial cells of the small intestine was observed by in situ hybridization.RESULTS: Sodium orthovanadate could delay the increase of plasma glucose concentration after glucose and maltose loading, area under curve (AUC) in these groups was lower than that in control group. Sodium orthovanadate at dosages of 10 μmol/L, 100 μmol/L and 1000 μmol/L could suppress the activity of α-glucosidase in the small intestine of normal rats, with an inhibition rate of 68.18%, 87.22% and 91.91%,respectively. Sodium orthovanadate reduced mRNA expression of α-glucosidase and GLUT2 in epithelial cells of small intestine.CONCLUSION: Sodium orthovanadate can reduce and delay the absorption of glucose and maltose. The mechanism may be that it can inhibit the activity and mRNA expression of α-glucosidase, as well as mRNA expression of GLUT2 in small intestine. | JingAi JieDu NingWang Zhi-MinDu Bao-FengYang | 2004 | World Journal of Gastroenterology2004，10，24： | 2 |
| 6 | Catalytic: effecl of metal oxides on pyrolysis of sewage sludge 显示文摘 | JINGAI SHAO RONG YAN HANPNG CHEN | 2010 | Fuel Processing Technology2010，91，9： | 1 |
| 7 | Overexpression of NYGGF4 (PID1) induces mitochondrial impairment in 3T3-L1 adipocytes显示文摘 | Yaping Zhao Chunmei Zhang Xiaohui Chen Chunlin Gao Chenbo Ji Fukun Chen Chun Zhu Jingai Zhu Jialin Wang Lingmei Qian Xirong Guo | 2010 | Molecular and Cellular Biochemistry (-)2010，，1： | 1 |
| 8 | Maize drought disaster risk assessment of China based on EPIC model显示文摘Digital Agriculture is one of the important applications of Digital Earth.As the global climate changes and food security becomes an increasingly important issue,agriculture drought comes to the focus of attention.China is a typical monsoon climate country as well as an agricultural country with the world’s largest population.The East Asian monsoon has had a tremendous impact upon agricultural production.Therefore,a maize drought disaster risk assessment,in line with the requirements of sustainable development of agriculture,is important for ensuring drought disaster reduction and food security.Meteorology,soil,land use,and agro-meteorological observation information of the research area were collected,and based on the concept framework of‘hazard-inducing factors assessment(hazard)-vulnerability assessment of hazard-affected body(vulner-ability curve)-risk assessment(risk),’importing crop model EPIC(Erosion-Productivity Impact Calculator),using crop model simulation and digital mapping techniques,quantitative assessment of spatio-temporal distribution of maize drought in China was done.The results showed that:in terms of 2,5,10,and 20 year return periods,the overall maize drought risk decreased gradually from northwest to southeast in the maize planting areas.With the 20 year return period,high risk value regions(drought loss rate]0.5)concentrate in the irrigated maize region of Northwest china,ecotone between agriculture and animal husbandry in Northern China,Hetao Irrigation Area,and north-central area of North China Plain,accounting for 6.41%of the total maize area.These results can provide a scientific basis for the government’s decision-making in risk management and drought disaster prevention in China. | Huicong Jia Jingai Wang Chunxiang Cao Donghua Pan Peijun Shi | 2012 | International Journal of Digital Earth2012，5，6： | 1 |
| 9 | Fractional condensation of multicomponent vapors from pyrolysis of cotton stalk 显示文摘 | Sui Haiqing Yang Haiping Shao Jingai | 2014 | Energy & Fuels2014，28，8： | 1 |
| 10 | THEORY AND PRACTICE FOR COMPILING THE ATLAS OF NATURAL DISASTERS IN CHINA显示文摘This article inquires into theoretical and practical problems on compilation of an atlas of regional natural disasters. (1) The basic theory of compiling an atlas of regional disasters has been founded on the combination of the sciences of disasters, cartography and regional geogrphy. The content structure of a regional disaster atlas should be composed of at least the following five parts:hazard-formative environments and hazard-affected bodies,hazards, disaster effects, monitoring and warning system for natural disasters, and countermeasures for natural disaster reduction. (2) Contents of cartographic design of a regional disaster atlas should be composed of at least the following five parts: base map system, cartographic representation, Symbol System, color system, map edition and map layout system. (3) Based on theory and cartographic design of compiling an atlas of regional disaster, the Atlas of Natural Disater in China, which reveals objectively the temporal and spaial pattern of regional natural disasters of China,has been compiled and published. | Wang Jingai(Department of Resources and Environmental Sciences, Bejing Normal University, Beijing 100875 People’s Republic of China) | 1994 | Journal of Geographical Sciences1994，4，Z2： | 1 |
| 11 | SPATIO-TEMPORAL CHANGE OF DROUGHT DISASTER IN CHINA IN RECENT FIFTY YEARS | Wang Jingai 1,2 , Sun Heng 1, Xu Wei 1 and Zhou Jinju 1 (1. Department of Resource & Environment Science, Beijing Normal University, Beijing 100875, China 2. Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education of China, Beijing Normal University, Beijing 100875, China) SunHui | 2003 | Natural Disaster Reduction in China2003，，1： | 1 |
| 12 | Fabrication of lununescent and mesoporous core-shell structured nanocomposites and their application as drug carrier显示文摘 | Gai Shili Yang Piaoping Hao Jingai | 2009 | Microp Mesop Mater2009，131，： | 1 |
| 13 | Wind tunnel simulation of ridge-tillage effects on soil erosion from cropland 显示文摘 | Liu Muxing Wang Jingai Yan Ping | 2006 | Soil Tillage Res2006，90，2： | 1 |
| 14 | Maize drought disaster risk assessment of China based on EPIC model 显示文摘 | Jia Huicong Wang Jingai Cao Chunxiang | 2011 | Inter- national Journal of Digital Earth2011，5，6： | 1 |
| 15 | Catalytic effect of metal oxides on pyrolysis of sewage sludge显示文摘 | Jingai Shao Rong Yan Hanping Chert | 2010 | Fuel Processing Technology2010，91，： | 1 |
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