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40篇 您的检索式:作者名="Guoyu Ren"
    题名 作者 年代 出处 被引量
1Spatial and temporal variations and controlling factors of potential evapotranspiration in China:1956-2000显示文摘Based on the climatic data of 580 stations in China during 1956 and 2000, potential evapotranspiration are calculated using the Penman-Monteith Method recommended by FAO. The spatial and temporal distributions of the potential evapotranspiration over China and the temporal trends of the regional means for 10 major river basins and whole China are analyzed. Through a partial correlation analysis, the major climate factors which affect the temporal change of the potential evapotranspiration are analyzed. Major results are drawn as follows: 1) The seasonal and annual potential evapotranspiration for China as a whole and for most basins show decline tendencies during the past 45 years; for the Songhua River Basin there appears a slightly increasing trend. 2) Consequently, the annual potential evapotranspirations averaged over 1980-2000 are lower than those for the first water resources assessment (1956-1979) in most parts of China. Exceptions are found in some areas of Shandong Peninsula, western and middle basins of the rivers in Southwest China, Ningxia Hui Autonomous Region as well as the source regions of the Yangtze and Yellow rivers, which may have brought about disadvantages to the exploration and utilization of water resources. 3) Generally, sunshine duration, wind speed and relative humidity have greater impact on the potential evapotranspiration than temperature. Decline tendencies of sunshine duration and/or wind speed in the same period appear to be the major causes for the negative trend of the potential evapotranspiration in most areas.GAO Ge CHEN Deliang REN Guoyu CHEN Yu LIAO Yaoming 2006Journal of Geographical Sciences2006,16,1:34
2Improved survival of porcine acute liver failure by a bioartificial liver device implanted with induced human functional hepatocytes显示文摘Xiao-Lei Shi Yimeng Gao YupengYan HuchengMa Lulu Sun Pengyu Huang Xuan Ni Ludi Zhang Xin Zhao Haozhen Ren Dan Hu Yan Zhou Feng Tian Yuan Ji Xin Cheng Guoyu Pan Yi-Tao Ding LijianHui 2016Cell Research2016,26,2:31
3Karyotype Stability and Unbiased Fractionation in the Paleo-Allotetraploid Cucurbita Genomes显示文摘Honghe Sun Shan WU Guoyu Zhang Chen Jiao Shaogui Guo Yi Ren Jie Zhang Haiying Zhang Guoyi Gong Zhangcai Jia Fan Zhang Jiaxing Tian William J. Lucas Jeff J. Doyle Haizhen Li Zhangjun Fei Yong Xu 2017Molecular Plant2017,10,10:33
4COL4A3 mutations cause focal segmenta glomerulosclerosis显示文摘Jingyuan Xie Xiaoxi Wu Hong Ren Weiming Wang Zhaohui Wang Xiaoxia Pan Xu Hao Jun Tong Jun Ma Zhibin Ye Guoyu Meng Yufei Zhu Krzysztof Kiryluk Xiangyin Kong Landian Hu Nan Chen 2014Journal of Molecular Cell Biology2014,8,6:15
5Global land-surface air temperature change based on the new CMA GLSAT data set显示文摘The China Meteorological Administration(CMA)has recently developed a new global monthly homogenized land-surface air temperature data set.Based on this data set,we reanalyzed the change in global annual mean land-surface air temperature(LSAT)during three time periods(1901–2014,1979–2014 and 1998–2014).The results show that the linear trends of global annual mean LSAT were 0.104°C/decade,0.247°C/decade and 0.098°C/decade for the three periods,respectively.The trends were statistically significant except for the period 1998–2014,the period thatXiubao Sun Guoyu Ren Wenhui Xu Qingxiang Li Yuyu Ren 2017Science Bulletin2017,62,4:10
6An Overview of China's Mainland Temperature Change Research显示文摘There has been significant effort devoted to investigating long-term trends in land surface air temperature over China's Mainland by Chinese scientists over the past 50 years, and much progress has been made in understanding dynamics of the changes. This review highlights research conducted by early Chinese climatologists, and particularly Professor Shaowu Wang from Peking University, with special focus on systematic work that has been conducted since the mid to late 1970s. We also discuss major issues that remain unresolved in past and current studies. The most recent analyses indicate that the country-average annual mean surface air temperature rose by 1.12℃ over the past 115 years(1901–2015), with a rate of increase of about 0.10℃ decade^(-1). Temperatures have risen more rapidly since the 1950s, with the rate of increase of more than 0.25℃ decade^(-1). However, the recent increase in temperatures is in large part due to contamination by systematically biased data. These data are influenced by unprecedented urbanization in China, with a contribution of urbanization to the overall increase of annual mean temperatures in China's Mainland of about one third over the past half a century. If the bias is corrected, the rate of increase for the country-average annual mean surface air temperature is 0.17℃ decade^(-1) over the last 50–60 years, which is approximately the same as global and Northern Hemispheric averages in recent decades. Future efforts should be focused towards the recovery and digitization of early-year observational records, the homogenization of observational data, the evaluation and adjustment of urbanization bias in temperature data series from urban stations, the analysis of extreme temperatures over longer periods including the first half of the 20th century, and the investigation of the observed surface air temperature change mechanisms in China's Mainland.Guoyu REN Yihui DING Guoli TANG 2017Journal of Meteorological Research2017,31,1:9
7Extreme Temperature Change of the Last 110 Years in Changchun,Northeast China显示文摘In China and East Asia,the long-term continuous observational data at daily resolution are insufficient,and thus there is a lack of good understanding of the extreme climate variation over the last 100 years plus.In this study,the extreme temperature indices defined by ETCCDI(Expert Team on Climate Change Detection and Indices)and local meteorological administrations were analyzed for Changchun City,Northeast China,by using the daily maximum temperature(Tmax)and daily minimum temperature(Tmin)over 1909?2018.The results showed that extreme cold events,such as cold days,cold nights,frost days,icing days,and low temperature days,decreased significantly at rates of?0.41 d(10 yr)^?1,?1.45 d(10 yr)^?1,?2.28 d(10 yr)^?1,?1.16 d(10 yr)?1 and?1.90 d(10 yr)^?1,respectively.Warm nights increased significantly at a rate of 1.71 d(10 yr)^?1,but warm days decreased slightly and the number of high temperature days decreased at a rate of?0.20 d(10 yr)?1.The frequency of cold surge events increased significantly at a rate of 0.25 d(10 yr)^?1,occurring mainly from the mid-1950s to late-1980s.The average Tmax,average Tmin and extreme Tmin increased at rates of 0.09℃(10 yr)^?1,0.36℃(10 yr)^?1 and 0.54℃(10 yr)^?1,respectively;and extreme Tmax decreased significantly at a rate of?0.17℃(10 yr)^?1.In 1909?2018,1951?2018 and 1979?2018,the indices related to cold events decreased,while the trends of the indices related to warm events were different for different periods.Xiujing YU Guoyu REN Panfeng ZHANG Jingbiao HU Ning LIU Jianping LI Chenchen ZHANG 2020Advances in Atmospheric Sciences2020,37,4:2
8GLOBAL CLIMATE CHANGES AND THE TOURISM OF CHINA显示文摘The future global climate changes induced by the increased atmospheric CO2 concentration is receiving much attention from the scientific community as well as the public. Model simulations and palaeoclimatic data studies show an evident change in temperature and precipitation over China will occur under conditions of the global warming. Possible scenarios of the future climates are given here for China on the basis of synthesizing model simulations and palaeoclimatic data. Most parts of China will experience an increase in temperature, but the warming may be more remarkable in winter in h1e northern half of the country. Increase in precipitation will be seen in nearly every parts of the eastern China, and it will be larger in North and Northeast China. Impacts of the climate changes on the national tourism are assessed. Regions suitable for tourisin development in terms of climate comfortable index will shift northward. Some scenic spots and toruism facilities will be damaged due to sea level rise and increased rainfall. Some regions will benefit from the dimate change, but the tourism industry as a whole will be negatively affected.Ren Guoyu(National Climate Center, Beijing 100081People’s Republic of China) 1996Journal of Geographical Sciences1996,6,2:2
9Change in extreme temperature event frequency over mainland China during 1961 -2008显示文摘Zhou Yaqing Ren Guoyu 2011Climate Research2011,50,:1
10Numerical modelling of regular wave slamming on subface of open- piled structures with the corrected SPH method 显示文摘GAO Rui REN Bing WANG Guoyu 2012Ap- plied ocean research2012,34,:1
11Changes in means and extreme events of temperature and precipitation in the Asia- Pacific Network region, 1955 -2007显示文摘Choi G Collins D Ren Guoyu 2009International Journal of Climatology2009,29,:1
12Comparison of theThomthwaite method and pan data with the standardPenman-Monteith estimates of reference ET in China显示文摘Chen Deliang Xu Chong-Yu Ren Guoyu 2008Climate Research2008,28,:1
13Urbanization effects on observed surface air temperature in North China 显示文摘Ren GuoYu Chu Ziying Zhou Jiangxing 2008Journal of Climate2008,21,:1
14Inconsistencies of precipitation in the eastern and central Tibetan Plateau between surface adjusted data and reanalysis显示文摘Qinglong You Klaus Fraedrich Guoyu Ren Baisheng Ye Xianhong Meng Shichang Kang 2012Theoretical and Applied Climatology2012,,3:1
15Tempospatial Pattern of Surface Wind Speed and the “Urban Stilling Island” in Beijing City显示文摘An hourly-resolution dataset from observations at the automatic weather stations(AWSs) is developed and applied to study the characteristics of weakening surface wind in the urban areas of Beijing City in 2008–2017. The 'Urban Stilling Island(USI)' is defined and quantified to depict the surface wind speed(WS) differences between rural and urban regions. The urban(rural) sites are represented by 45(6) stations within(outside) the 6th Ring Road(RR). The results demonstrate remarkable smaller annual and seasonal average WS values in urban areas than in rural areas, indicating significant USI, especially in the central urban areas(within the 4th RR) in spring and winter. Further analysis reveals that the surface roughness effect dominates and enhances the USI intensity(USII) under the stronger large-scale background wind in spring and winter, whereas the Urban Heat Island(UHI) effect may dominate and decrease the USII under weaker large-scale wind in summer and autumn. The diurnal USII variations are characterized by a steady low-value phase from 1900 to 0800 Beijing Time(BT) and a high-value phase from 1100 to 1500 BT,with rapid shifts of USII in between. Long-term variation of hourly USII shows large mean USII in 2008–2012 but decreased USII in 2013–2017, possibly attributed to the change of urbanization level around the rural observation sites.Ping YANG Guoyu REN Pengcheng YAN Jingmian DENG 2020Journal of Meteorological Research2020,34,5:1
16Comparative Analysis of China Surface Air Temperature Series for the Past 100 Years显示文摘温度变化在全球变化科学起一个关键作用。在过去的几十年,全面调查结果在中国在温度变化上被完成过去的 100 年了。几个次系列被创造了为这个国家说明平均表面空气温度。这些的关联从 0.73 ~ 0.97 的系列范围。它也在更好的数据质量,更宽的空间数据范围,时间系列的改进同质,和调查结果的提高的可靠性被完成。结果由 0.78 摮爠獥潰獮獥琠? 汣浩瑡 ? 档湡敧 ? 湩汦敵据獥漠 ? 牣潹灳敨楲? 档湡敧 ? 愠摮愠慤瑰瑡潩 ?Guoli Tang Yihui Ding Shaowu Wang Guoyu Ren Hongbin Liu Li Zhang 2010Advances in Climate Change Research2010,1,1:1
17Variability of Temperature in the Tibetan Plateau Based on Homogenized Surface Stations and Reanalysis Data显示文摘Qinglong You Klaus Fraedrich Guoyu Ren 2013International Journal of Climatology2013,33,:1
18Variability of temperature in the Tibetan Plateau based on homogenized surface stations and reanalysis data显示文摘Qinglong You Klaus Fraedrich Guoyu Ren Nick Pepin Shichang Kang 2012Int. J. Climatol2012,,6:1
19Urbanization Effects on Observed Surface Air Temperature Trends in North China显示文摘Ren Guoyu Zhou Yaqing Chu Ziying Zhou Jiangxing Zhang Aiying Guo Jun Liu Xuefeng 2008Journal of Climate2008,,6:1
20Highly efficient synthesis and application of aryl diazonium salts via femtosecond laser-tailored 3D flow microfluidic chips显示文摘The first example of the microfluidic chips(MFCs) consisting of centimeter-level 3D channels with highdensity and large-volume fabricated by femtosecond laser micromachining were utilized to develop a time-saving, economical and hazardless flow synthesis process, and its advantages have been proved by in situ formation of aryldiazonium salts and subsequent borylation with bis(pinacolato)diboron. There are several important advantages in our 3D MFC-based flow synthesis technology, including the following:(1) the reaction temperature was altered from ice bath to room temperature;(2) the residence time was reduced by 10 times;(3) the yield was greatly improved, that is, several arylboronates were successfully obtained with higher yield compared to traditional batch process. Therefore, it can be envisioned that a novel, simplified flow synthetic protocol will be developed toward green organic synthesis via MFCs.Jing Ren Miao Wu Kaiwu Dong Min Zhang Ya Cheng Guoyue Shi 2023Chinese Chemical Letters2023,34,4:1
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