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| 1 | Spatial and temporal variability in the net primary production of alpine grassland on the Tibetan Plateau since 1982显示文摘基于 GIMMS AVHRR NDVI 数据( 8 km 空间分辨率)为 19822000 , SPOT 植被 NDVI 数据( 1 km 空间分辨率)为 19982009 ,并且观察植物生物资源数据, CASA 模型习惯于在高山的草地的变化在西藏的高原( TP )上让主要生产( NPP )赚的模型。这研究将帮助评估高山的草地生态系统的健康条件,并且对高原牧场并且到 TP 上的国家生态的安全躲蔽处的函数的理解的持续开发的提升很重要。NPP 变化的时间空间的特征用空间统计分析被调查,独立根据 physico 地理的因素(自然地区,高度,纬度和经度) ,河盆,和县级的行政区域。处理的数据用一个 ENVI 4.8 平台被执行,当一个 ArcGIS 9.3 和 ANUSPLIN 平台被用来进行空间分析并且印射时。主要结果如下:(1 ) TP 上的高山的草地的 NPP 逐渐地从东南减少到西北,它在降水和温度对应于坡度。从 1982 ~ 2009,在 TP 高山的草地的平均年度全部的 NPP 是 177.2 ?? ?? ? | ZHANG Yili QI Wei ZHOU Caiping DING Mingjun LIU Linshan GAO Jungang BAI Wanqi WANG Zhaofeng ZHENG Du | 2014 | Journal of Geographical Sciences2014，24，2： | 47 |
| 2 | Changes in air temperature over China in response to the recent global warming hiatus显示文摘The 1998-2012 global wanning hiatus has aroused great public interest over the past several years.Based on the air temperature measurements from 622 meteorological stations in China,the temperature response to the global warming hiatus was analyzed at national and regional scales.We found that air temperature changed-0.221°C/10a during 1998-2012,which was lower than the long-term trend for 1960-1998 by 0.427°C/10a.Therefore,the warming hiatus in China was more pronounced than the global mean.Winter played a domi nant role in the nati on wide warming hiatus,con tributi ng 74.13%,while summer contributed the least among the four seasons.Furthermore,the warming hiatus was spatial heterogeneous across different climate conditions in China.Comparing the three geographic zones,the monsoon region of eastern China,arid region of northwestern China,and high frigid region of the Tibetan Plateau,there was significant cooling in eastern and northwestern China.In eastern China,which contributed 53.79%,the trend magnitudes were 0.896°C/10a in winter and 0.134°C/10a in summer.In the Tibeta n Plateau,air temperature in creased by 0.204°C/10a,indicating a lack of a significant warming hiatus.More broadly,the warming hiatus in China may have been associated with the negative phase of PDO and reduction in sunspot numbers and total solar radiation.Finally,although a warming hiatus occurred in China from 1998 to 2012,air temperature rapidly increased after 2012 and will likely to continuously warm in the next few years. | DU Qinqin ZHANG Mingjun WANG Shengjie CHE Cunwei MA Rong MA Zhuanzhuan | 2019 | Journal of Geographical Sciences2019，29，4： | 9 |
| 3 | Antioxidant capacity and the relationship with polyphenol and vitamin C in Actinidia fruits 显示文摘 | DU Guorong LI Mingjun MA Fengwang | 2009 | Food Chemistry2009，11，3： | 1 |
| 4 | Antioxidant capacityand the relationship with polyphenol and vitamin C in Actinidia fruits显示文摘 | DU Guorong LI Mingjun MA Fengwang | 2009 | Food Chem2009，113，2： | 1 |
| 5 | Antioxidant capacity and the relationship with polyphenol and vitamin C in Actinidia fi'uits 显示文摘 | Du Guorong Li Mingjun Ma Fengwang | 2009 | Food Chemistry2009，113，2： | 1 |
| 6 | Antioxidant capacity and the relationship with polyphenol and vitamin C in Actinidia fruit 显示文摘 | DU Guorong LI Mingjun MA Fengwang | 2009 | Food Chemistry2009，113，2： | 1 |
| 7 | A novel sliding mode variable structure controller for cascade STATCOM显示文摘 | WU Junyong CHEN Qichao DU Mingjun | 2013 | IET Power Electronics2013，6，2： | 1 |
| 8 | Antioxidant capacity and the relationship with polyphenol and Vitamin C in Actinidia fruits显示文摘 | Guorong Du Mingjun Li Fengwang Ma Dong Liang | 2008 | Food Chemistry2008，，2： | 1 |
| 9 | A Hu sheep genome with the first ovine Y chromosome reveal introgression history after sheep domestication显示文摘The Y chromosome plays key roles in male fertility and reflects the evolutionary history of paternal lineages.Here,we present a de novo genome assembly of the Hu sheep with the first draft assembly of ovine Y chromosome(o MSY),using nanopore sequencing and Hi-C technologies.The o MSY that we generated spans 10.6 Mb from which 775 Y-SNPs were identified by applying a large panel of whole genome sequences from worldwide sheep and wild Iranian mouflons.Three major paternal lineages(HY1a,HY1b and HY2)were defined across domestic sheep,of which HY2 was newly detected.Surprisingly,HY2 forms a monophyletic clade with the Iranian mouflons and is highly divergent from both HY1a and HY1b.Demographic analysis of Y chromosomes,mitochondrial and nuclear genomes confirmed that HY2 and the maternal counterpart of lineage C represented a distinct wild mouflon population in Iran that diverge from the direct ancestor of domestic sheep,the wild mouflons in Southeastern Anatolia.Our results suggest that wild Iranian mouflons had introgressed into domestic sheep and thereby introduced this Iranian mouflon specific lineage carrying HY2 to both East Asian and Africa sheep populations. | Ran Li Peng Yang Ming Li Wenwen Fang Xiangpeng Yue Hojjat Asadollahpour Nanaei Shangquan Gan Duo Du Yudong Cai Xuelei Dai Qimeng Yang Chunna Cao Weidong Deng Sangang He Wenrong Li Runlin Ma Mingjun Liu Yu Jiang | 2021 | Science China(Life Sciences)2021，64，7： | 1 |
| 10 | Antioxidant capacity and the relationship with polyphenol and vitamin C in Actinidia fruits显示文摘 | Du Guorong Li Mingjun Ma Fengwang | 2009 | Food Chemistry2009，113，： | 1 |
| 11 | Anfioxidant capacityand the relationship with polyphenol and Vitamin C in Actinidia fruits显示文摘 | DU Guorong LI Mingjun MA Fengwang | 2009 | Food Chemistry2009，113，： | 1 |
| 12 | Impact of substrate temperature on the microstructure, electrical and optical properties of sputtered nanoparticle V 2 O 5 thin films显示文摘 | Zhenfei Luo Zhiming Wu Xiangdong Xu Mingjun Du Tao Wang Yadong Jiang | 2010 | Vacuum2010，，2： | 1 |
| 13 | Antioxidant capacity and the relationship with polyphenol and vitamin C in Actinidia fruits显示文摘 | DU Guorong LI Mingjun MA Fengwang | 2009 | Food Chemistry2009，113，： | 1 |
| 14 | Antioxidant capacity and the relationship with polyphenol and Vitamin C in Actinidia fruits显示文摘 | Guorong Du Mingjun Li Fengwang Ma Dong Liang | 2008 | Food Chemistry2008，，2： | 1 |
| 15 | Antioxidant capacity and the relationship with polyphenol and vitamin C in Actinidia fruits显示文摘 | DU Guorong LI Mingjun MA Fengwang | | 0，，： | 1 |
| 16 | Antioxidant capacity and the relationship with polyphenol and Vitamin C in Actinidia fruits显示文摘 | Guorong Du Mingjun Li Fengwang Ma | 2009 | Food Chemistry2009，113，2： | 1 |
| 17 | Purification of the Beonite from Shangtianti, Henan Province, China显示文摘Bentonites consisting mainly of montmorillonite are widely utilized in various applications. However, natural bentonites contain many kinds of impurities such as quartz, cristobalite, feldspar, zeolite, calcite etc., which can decrease the performance of bentonite. Furthermore, quartz and cristobalite are carcinogenic. Therefore purification of bentonite is critical to its applications. Among the impurities in bentonite, cristobalite is the most difficult one to get rid of because of its tiny particle size and aggregation state. | LIAO Libing WANG Mingjun DU Gaoxiang GONG Zhijin L Guocheng | 2013 | 矿物学报2013，33，S1： | 0 |
| 18 | A novel spatio-temporal trajectory data-driven development approach for autonomous vehicles显示文摘Nowadays,autonomous driving has been attracted widespread attention from academia and industry.As we all know,deep learning is effective and essential for the development of AI components of Autonomous Vehicles(AVs).However,it is challenging to adopt multi-source heterogenous data in deep learning.Therefore,we propose a novel data-driven approach for the delivery of high-quality Spatio-Temporal Trajectory Data(STTD)to AVs,which can be deployed to assist the development of AI components with deep learning.The novelty of our work is that the meta-model of STTD is constructed based on the domain knowledge of autonomous driving.Our approach,including collection,preprocessing,storage and modeling of STTD as well as the training of AI components,helps to process and utilize huge amount of STTD efficiently.To further demonstrate the usability of our approach,a case study of vehicle behavior prediction using Long Short-Term Memory(LSTM)networks is discussed.Experimental results show that our approach facilitates the training process of AI components with the STTD. | Menghan ZHANG Mingjun MA Jingying ZHANG Mingzhuo ZHANG Bo LIW Dehui DU | 2021 | Frontiers of Earth Science2021，15，3： | 0 |
| 19 | Experimental Study on Heavy Oil Drag Reduction in Horizontal Pipelines by Water Annular Conveying显示文摘Transportation of heavy oil by the so-called water-ring technique is a very promising method by which pressure drop and pollution can be significantly reduced.Dedicated experiments have been carried out by changing the phase’s density,viscosity,velocity and interfacial tension to systematically analyze the characteristics of the water ring.On the basis of such experimental data,a mathematical model for pressure drop prediction has been introduced.This research shows that as long as the density of oil and water remains the same,a concentric water ring can effectively be formed.In such conditions,the oil-water viscosity difference has little effect on the shape of water ring,and it only affects the pressure drop.The greater the viscosity of heavy oil,the smaller the pressure drop of the oil-water ring transportation system.The influence of phases’interfacial tension on the characteristics and pressure drop of the heavy oil-water ring can be considered negligible.The pressure drop prediction model introduced on the basis of the Buckingham’s principle provides values in good agreement(95%)with the experimental data. | Mingjun Du Jiaqiang Jing Xinqiang Xiong Bingbing Lang Xuan Wang Shiying Shi | 2022 | Fluid Dynamics & Materials Processing2022，18，1： | 0 |
| 20 | Privacy-Preserving Strategyproof Auction Mechanisms for Resource Allocation显示文摘In recent years, auction theory has been extensively studied and many state-of-the-art solutions have been proposed aiming at allocating scarce resources. However, most of these studies assume that the auctioneer is always trustworthy in the sealed-bid auctions, which is not always true in a more realistic scenario. Besides the privacy-preserving issue, the performance guarantee of social efficiency maximization is also crucial for auction mechanism design. In this paper, we study the auction mechanisms that consider the above two aspects. We discuss two multi-unit auction models: the identical multiple-items auction and the distinct multiple-items auction.Since the problem of determining a multi-unit auction mechanism that can maximize its social efficiency is NPhard, we design a series of nearly optimal multi-unit auction mechanisms for the proposed models. We prove that the proposed auction mechanisms are strategyproof. Moreover, we also prove that the privacy of bid value from each bidder can be preserved in the auction mechanisms. To the best of our knowledge, this is the first work on the strategyproof multi-unit auction mechanisms that simultaneously consider privacy preservation and social efficiency maximization. The extensive simulations show that the proposed mechanisms have low computation and communication overheads. | Yu-E Sun He Huang Xiang-Yang Li Yang Du Miaomiao Tian Hongli Xu Mingjun Xiao | 2017 | Tsinghua Science and Technology2017，22，2： | 0 |
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