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| 1 | Stable classi?cation with limited sample: transferring a 30-m resolution sample set collected in 2015 to mapping 10-m resolution global land cover in 2017显示文摘As the world strives to reduce the impact of population growth, urbanization, agricultural expansion, and climate change on food security, energy and water shortage, resource over-exploration, biodiversity loss, environmental pollution, and ultimately human health, timely and higher resolution land cover information is urgently needed to achieve the sustainable development goals of the United Nations. | Peng Gong Han Liu Meinan Zhang Congcong Li Jie Wang Huabing Huang Nicholas Clinton Luyan Ji Wenyu Li Yuqi Bai Bin Chen Bing Xu Zhiliang Zhu Cui Yuan Hoi Ping Suen Jing Guo Nan Xu Weijia Li Yuanyuan Zhao Jun Yang Chaoqing Yu Xi Wang Haohuan Fu Le Yu Iryna Dronova Fengming Hui Xiao Cheng Xueli Shi Fengjin Xiao Qiufeng Liu Lianchun Song | 2019 | Science Bulletin2019,64,6: | 166 |
| 2 | A complete sequence and comparative analysis of a SARS-associated virus(Isolate BJ01)显示文摘The genome sequence of the Severe Acute Respiratory Syndrome (SARS)-associated virus provides essential information for the identification of pathogen(s), exploration of etiology and evolution, interpretation of transmission and pathogenesis, development of diagnostics, prevention by future vaccination, and treatment by developing new drugs. We report the complete genome sequence and comparative analysis of an isolate (BJ01) of the coronavirus that has been recognized as a pathogen for SARS. The genome is 29725 nt in size and has 11 ORFs (Open Reading Frames). It is composed of a stable region encoding an RNA-dependent RNA polymerase (composed of 2 ORFs) and a variable region representing 4 CDSs (coding sequences) for viral structural genes (the S, E, M, N proteins) and 5 PUPs (putative uncharacterized proteins). Its gene order is identical to that of other known coronaviruses. The sequence alignment with all known RNA viruses places this virus as a member in the family of Coronaviridae. Thirty putative substitutions have been identified by comparative analysis of the 5 SARS- associated virus genome sequences in GenBank. Fifteen of them lead to possible amino acid changes (non-synonymous mutations) in the proteins. Three amino acid changes, with predicted alteration of physical and chemical features, have been detected in the S protein that is postulated to beinvolved in the immunoreactions between the virus and its host. Two amino acid changes have been detected in the Mprotein, which could be related to viral envelope formation. Phylogenetic analysis suggests the possibility of non-human origin of the SARS-associated viruses but provides noevidence that they are man-made. Further efforts should focus on identifying the etiology of the SARS-associated virus and ruling out conclusively the existence of otherpossible SARS-related pathogen(s). | QIN E'de ZHU Qingyu YU Man FAN Baochang CHANG Guohui SI Bingyin YANG Bao PENG Wenming JIANG Tao LIU Bohua DENG Yongqiang LIU Hong ZHANG Yu WANG Cui LI Yuquan GAN Yonghua LI Xiaoyu L Fushuang TAN Gang CAO Wuchun, YANG Ruifu Institute of Microbiology and Epidemiology, Chinese Academy of Military Medical Sciences, Beijing 100071, China WANG Jian, LI Wei, XU Zuyuan, LI Yan, WU Qingfa, LIN Wei, CHEN Weijun, TANG Lin, DENG Yajun, HAN Yujun, LI Changfeng, LEI Meng, LI Guoqing, LI Wenjie, L Hong, SHI Jianping, TONG Zongzhong, ZHANG Feng, LI Songgang, LIU Bin, LIU Siqi, DONG Wei, WANG Jun, Gane K-S Wong, YU Jun & YANG Huanming* Beijing Genomics Institute, Chinese Academy of Sciences, Beijing 101300 National Center for Genome Information, Beijing 101300, China | 2003 | Chinese Science Bulletin2003,48,10: | 121 |
| 3 | H7N9 virulent mutants detected in chickens in China pose an increased threat to humans显示文摘 | Jianzhong Shi Guohua Deng Huihui Kong Chunyang Gu Shujie Ma Xin Yin Xianying Zeng Pengfei Cui Yan Chen Huanliang Yang Xiaopeng Wan Xiurong Wang Liling Liu Pucheng Chen Yongping Jiang Jinxiong Liu Yuntao Guan Yasuo Suzuki Mei Li Zhiyuan Qu Lizheng Guan Jinkai Zang Wenli Gu Shuyu Han Yangming Song Yuzhen Hu Zeng Wang Linlin Gu Wenyu Yang Libin Liang Hongmei Bao Guobin Tian Yanbing Li Chuanling Qiao Li Jiang Chengjun Li Zhigao Bu Hualan Chen | 2017 | Cell Research2017,27,12: | 70 |
| 4 | Effect of N Fertilization on Grain Yield of Winter Wheat and Apparent N Losses显示文摘Excessive nitrogen (N) fertilizer application to winter wheat is a common problem on the North China Plain. To determine the optimum fertilizer N rate for winter wheat production while minimizing N losses, field experiments were conducted for two growing seasons at eight sites, in Huimin County, Shandong Province, from 2001 to 2003. The optimum N rate for maximum grain yield was inversely related to the initial soil mineral N content (Nmin) in the top 90 cm of the soil profile before sowing. There was no yield response to the applied N at the three sites with high initial soil mineral N levels (average 212 kg N ha-1). The average optimum N rate was 96 kg N ha-1 for the five sites with low initial soil Nmin (average 155 kg N ha-1) before sowing. Residual nitrate N in the top 90 cm of the soil profile after harvest increased with increasing fertilizer N application rate. The apparent N losses during the wheat-growing season also increased with increasing N application rate. The average apparent N losses with the optimum N rates were less than 15 kg N ha-1, whereas the farmers' conventional N application rate resulted in losses of more than 100 kg N ha-1. Therefore, optimizing N use for winter wheat considerably reduced N losses to the environment without compromising crop yields. | CUI Zhen-Ling CHEN Xin-Ping LI Jun-Liang XU Jiu-Fei SHI Li-Wei ZHANG Fu-Suo | 2006 | Pedosphere2006,16,6: | 45 |
| 5 | Programmable time-domain digital-coding metasurface for non-linear harmonic manipulation and new wireless communication systems显示文摘Optical non-linear phenomena are typically observed in natural materials interacting with light at high intensities, and they benefit a diverse range of applications from communication to sensing. However,controlling harmonic conversion with high efficiency and flexibility remains a major issue in modern optical and radio-frequency systems. Here, we introduce a dynamic time-domain digital-coding metasurface that enables efficient manipulation of spectral harmonic distribution. By dynamically modulating the local phase of the surface reflectivity, we achieve accurate control of different harmonics in a highly programmable and dynamic fashion, enabling unusual responses, such as velocity illusion. As a relevant application, we propose and realize a novel architecture for wireless communication systems based on the time-domain digital-coding metasurface, which largely simplifies the architecture of modern communication systems, at the same time yielding excellent performance for real-time signal transmission. The presented work, from new concept to new system, opens new pathways in the application of metamaterials to practical technology. | Jie Zhao Xi Yang Jun Yan Dai Qiang Cheng Xiang Li Ning Hua Qi Jun Chen Ke Guo Dong Bai Shuo Liu Shi Jin Andrea Alù Tie Jun Cui | 2019 | National Science Review2019,6,2: | 46 |
| 6 | Temporal and spatial response of vegetation NDVI to temperature and precipitation in eastern China显示文摘到整个年,春天,夏天和秋天里的温度和降水的变化的植被 NDVI 的时间、空间的反应特征在东方中国从 205 个气象学的车站基于 SPOT VGT-NDVI 数据和降水数据从 1998 年 4 月被分析到 2008 年 3 月。结果显示总体上,到温度的变化的植被 NDVI 的反应是比在东方中国的降水的更显著的。植被 NDVI 最大地对温度的变化作出回应与一大约 10 的 lag 天,和它最大地对降水的变化作出回应与一大约 30 天的 lag。到温度和降水的植被 NDVI 的反应最在秋天被读,并且有最长在夏天落后。空间地,到温度的变化的植被 NDVI 的最大的反应比在东方中国的南部的部分在北、中间的部分是更显著的。到降水的变化的植被 NDVI 的最大的反应比在东方中国的中间、南部的部分在北部分是更显著的。到温度的变化的植被 NDVI 的反应更长有比在东方中国的中间的部分在北、南部的部分落后。到降水的变化的植被 NDVI 的反应有最长在南部的部分落后,并且最突然在东方中国的北部分落后。到在东方中国的温度和降水的变化的植被 NDVI 的反应与另外的结果主要一致,但是到温度和降水的变化的植被 NDVI 的 lag 时间与东方中国的季风区域的那些结果有一些差别。 | CUI Linli SHI Jun | 2010 | Journal of Geographical Sciences2010,20,2: | 32 |
| 7 | 5-Hydroxymethylcytosine signatures in circulating cell-free DNA as diagnostic biomarkers for human cancers显示文摘象 5-methylcytosine (5mC ) 和 5-hydroxymethylcytosine (5hmC ) 那样的 DNA 修正是知道在哺乳动物影响全球基因表示的 epigenetic 标记。在人的染色体,与基因表示的靠近的关联和高化学的稳定性给他们的流行,这些 DNA epigenetic 标记能为癌症用作理想的 biomarkers 诊断。利用一种高度敏感、选择的化学标记技术,我们这里报导在传播没有房间的 DNA ( cfDNA )并且在从最近与 colorectal 诊断的 260 个病人的一个队收集的配对的肿瘤和邻近的纸巾的 genomic DNA ( gDNA )的 5hmC 的染色体宽的介绍,胃,胰腺,从 90 个健康个人的肝或甲状腺癌症和正常纸巾。5hmC 主要在与开的染色质和容许的 histone 修正重合的 transcriptionally 活跃的区域被散布。柔韧的联系癌症的 5hmC 签名在 cfDNA 被识别为特定的癌症类型是特征的。传播 cfDNA 的 5hmC 底 biomarkers colorectal 和胃的癌症是高度预兆的并且比常规 biomarkers 优异并且比得上从织物活体检视的 5hmC biomarkers。因此,这新策略能从血样品的分析为癌症的诊断和预后导致有效、最低限度地侵略的方法的发展。 | Wenshuai Li Xu Zhang Xingyu Lu Lei You Yanqun Song Zhongguang Luo Jun Zhang Ji Nie Wanwei Zheng Diannan Xu Yaping Wang Yuanqiang Dong Shulin Yu Jun Hong Jianping Shi Hankun Hao Fen Luo Luchun Hua Peng Wang Xiaoping Qian Fang Yuan Lianhuan Wei Ming Cui Taiping Zhang Quan Liao Menghua Dai Ziwen Liu Ge Chen Katherine Meckel Sarbani Adhikari Guifang Jia Marc B Bissonnette Xinxiang Zhang Yupei Zhao Wei Zhang Chuan He Jie Liu | 2017 | Cell Research2017,27,10: | 30 |
| 8 | Sleep and Cognitive Abnormalities in Acute Minor Thalamic Infarction显示文摘In order to characterize sleep and the cognitive patterns in patients with acute minor thalamic infarction(AMTI), we enrolled 27 patients with AMTI and 12 matched healthy individuals. Questionnaires about sleep and cognition as well as polysomnography(PSG) were performed on days 14 and 90 post-stroke. Compared to healthy controls, in patients with AMTI, hyposomnia was more prevalent; sleep architecture was disrupted as indicated by decreased sleep efficiency, increased sleep latency, and decreased non-rapid eye movement sleep stages 2 and 3;more sleep-related breathing disorders occurred; and cognitive functions were worse, especially memory. While sleep apnea and long-delay memory recovered to a large extent in the patients, other sleep and cognitive function deficit often persisted. Patients with AMTI are at an increased risk for hyposomnia, sleep structure disturbance,sleep apnea, and memory deficits. Although these abnormalities improved over time, the slow and incomplete improvement suggest that early management should be considered in these patients. | Wei Wu Linyang Cui Ying Fu Qianqian Tian Lei Liu Xuan Zhang Ning Du Ying Chen Zhijun Qiu Yijun Song Fu-Dong Shi Rong Xue | 2016 | Neuroscience Bulletin2016,32,4: | 28 |
| 9 | The Chromosome-Level Reference Genome of Tea Tree Unveils Recent Bursts of Nonautonomous LTR Retrotransposons in Driving Genome Size Evolution显示文摘Dear Editor,The tea tree Camellia sinensis,a member of the genus Camellia in the Theaceae family,includes two major cultivated varieties,C.sinensis var.assamica(CSA\Assam type)and C.sinensis var.sinensis(CSS;Chinese type)(Ming and Bartholomew,2007).Due to the high economic importance of the tea tree,considerable efforts have been made to explore genetic basis of the biosynthesis of natural metabolites that determine health benefits and diverse tea flavors(Shi et al.,2011;Li et al.,2011;Li et al.,2015;Xia et aL,2017;Liu et al.,2019). | Qun-Jie Zhang Wei L i Kui Li Hong Nan Cong Shi Yun Zhang Zhang-Yan Dai Yang-Lei Lin Xiao-Lan Yang Yan Tong Dan Zhang Cui Lu Li-Ying Feng Chen-Feng Wang Xiao-Xin Liu Jian-An Huang Wen-Kai Jiang Xing-Hua Wang Xing-Cai Zhang Evan E.Eichler Zhong-Hua Liu and Li-Zhi Gao | 2020 | Molecular Plant2020,13,7: | 27 |
| 10 | Function S-Rough sets and its applications显示文摘Based on S-rough sets(singular rough sets), t hi s paper presents function S-rough sets (function singular rough sets)and its ma thematical structures and features. Function S-rough sets has two forms: functi on one direction S-rough sets (function one direction singular rough sets) and function two direction S-rough sets (function two direction singular rough sets ). This paper advances the relationship theorem of function S-rough sets and S -rough sets. Function S-rough sets is the general form of S-rough sets, and S -rough sets is the special case of function S-rough sets. In this paper, appli cations of function S-rough sets in rough law mining-discovery of system are g iven. Function S-rough sets is a new research direction of rough sets and rough system. | Cui Yuquan Shi Kaiquan | 2006 | Journal of Systems Engineering and Electronics2006,17,2: | 25 |
| 11 | Structure of MERS-CoV spike receptor-binding domain complexed with human receptor DPP4显示文摘最近的尖铁 glycoprotein (S) 鉴别中东呼吸症候群 coronavirus (MERS-CoV ) 指向细胞的受体, dipeptidyl peptidase 4 (DPP4 ) 。顺序比较和当模特儿的分析在病毒的尖铁上揭示了一个通常认为的受体绑定领域(RBD ) ,它调停这个相互作用。我们报导 3.0 Å MERS-CoV RBD 的决定水晶结构跳了到人的 DPP4 的细胞外的领域。我们的结果证明 MERS-CoV RBD 由一个核心和受体绑定子域组成。受体绑定子域与 DPP4 β 交往;推进器然而并非它的内在的 hydrolase 领域。MERS-CoV RBD 和相关 SARS-CoV RBD 分享他们的核心子域的结构的类似的高度,但是在受体绑定子域是尤其是分叉的。Mutagenesis 研究在为到 DPP4 和入口的病毒的绑定是批评的进目标房间的受体绑定子域识别了几关键残余。在在 MERS-CoV RBD 和 DPP4 之间的接口的原子细节提供病毒和受体相互作用的结构的理解,它能对 MERS-CoV 感染指导治疗学和疫苗的开发。 | Nianshuang Wang Xuanling Shi Liwei Jiang Senyan Zhang Dongli Wang Pei Tong Dongxing Guo Lili Fu Ye Cui Xi Liu Kelly C Arledge Ying-Hua Chen Linqi Zhang Xinquan Wang | 2013 | Cell Research2013,23,8: | 26 |
| 12 | Incidence of Pleural Effusion in Patients with Pulmonary Embolism显示文摘 | Min Liu Ai Cui Zhen-Guo Zhai Xiao-Juan Guo Man Li Lei-Lei Teng Li-Li Xu Xiao-Juan Wang Zhen Wang Huan-Zhong Shi | 2015 | Chinese Medical Journal2015,,8: | 25 |
| 13 | Progresses on microwave remote sensing of land surface parameters显示文摘Highly accurate observations at various scales on the land surface are urgently needed for the studies of many areas,such as hydrology,meteorology,and agriculture.With the rapid development of remote sensing techniques,remote sensing has had the capacity of monitoring many factors of the Earth's land surface.Especially,the space-borne microwave remote sensing systems have been widely used in the quantitative monitoring of global snow,soil moisture,and vegetation parameters with their all-weather,all-time observation capabilities and their sensitivities to the characteristics of land surface factors.Based on the electromagnetic theories and microwave radiative transfer equations,researchers have achieved great successes in the microwave remote sensing studies for different sensors in recent years.This article has systematically reviewed the progresses on five research areas including microwave theoretical modeling,microwave inversion on soil moisture,snow,vegetation and land surface temperatures.Through the further enrichment of remote sensing datasets and the development of remote sensing theories and inversion techniques,remote sensing including microwave remote sensing will play a more important role in the studies and applications of the Earth systems. | SHI JianCheng DU Yang DU JinYang JIANG LingMei CHAI LinNa MAO KeBiao XU Peng NI WenJian XIONG Chuan LIU Qiang LIU ChenZhou GUO Peng CUI Qian LI YunQing CHEN Jing WANG AnQi LUO HeJia WANG YinHui | 2012 | Science China Earth Sciences2012,55,7: | 24 |
| 14 | Current research on soybean pest management in China显示文摘Pest is one of the important factors affecting soybean yield and quality. Until now, 404 species on soybean have been known based on literature review and a large scale survey. More than 20 key pests occur every year and are causing serious damage. In 3 different ecoregions(Northern ecoregion, Huang-Huai-Hai ecoregion and Central south ecoregion), pests occurrence and damage styles show a variety of regional characteristics. Soybean pests occurrence from north to south were shown as follow: from large pests to small pests, from chewing pests to sucking pests, from low reproductive rate and less generation pests to high reproductive rate and more generation pests. Soybean pest management is mainly based on resistant breeding, combining with monitoring, plant quarantine, cultural, biological, physical, mechanical and chemical controls in China. Although pesticides play an important role in practice, the absence of reasonable use has threatened sustainability of China's soybean production. Soybean integrated pest management is not the only strategy, and it still needs improvement and development, but it's the best alternative for pest control. It can be expected that integrated pest management will remain as the main strategy for soybean pest control in future. Further innovation of green prevention and control technology will also become a focus of future research in view of new pest problems brought about by crop restructuring, agricultural system change and global climate change. Integration of above technologies will reduce the harm of pests and production costs as well as improving soybean production capacity. In this review, research progress of Chinese soybean pest and its management was summarized and some suggestions were provided to adapt for soybean pest management under current situation. | Yu Gao Shusen Shi Menglei Xu Juan Cui | 2018 | Oil Crop Science2018,3,4: | 22 |
| 15 | Wireless Communications with Programmable Metasurface:Transceiver Design and Experimental Results显示文摘Metasurfaces have drawn significant attentions due to their superior capability in tailoring electromagnetic waves with a wide frequency range, from microwave to visible light. Recently, programmable metasurfaces have demonstrated the ability of manipulating the amplitude or phase of electromagnetic waves in a programmable manner in real time, which renders them especially appealing in the applications of wireless communications. In this paper, we present the fundamental principle of applying programmable metasurface as transmitter for wireless communications. Then, we establish a prototype system of metasurface-based transmitter to conduct several experiments and measurements over the air, which practically demonstrate the feasibility of using programmable metasurfaces in future communication systems. By exploiting the dynamically controllable property of programmable metasurface, the design, implementation and experimental evaluation of the proposed metasurface-based wireless communication system are presented with the prototype, which realizes single carrier quadrature phase shift keying(QPSK) transmission over the air. In the developed prototype, the phase of the reflected electromagnetic wave of programma-ble metasurface is directly manipulated in real time according to the baseband control signal, which achieves 2.048 Mbps data transfer rate with video streaming transmission over the air. In addition, experimental result is provided to compare the performance of the proposed metasurface-based architecture against the conventional one. With the slight increase of the transmit power by 5 dB, the same bit error rate(BER) performance can be achieved as the conventional system in the absence of channel coding. Such a result is encouraging considering that the metasurface-based system has the advantages of low hardware cost and simple structure, thus leading to a promising new architecture for wireless communications. | Wankai Tang Xiang Li Jun Yan Dai Shi Jin Yong Zeng Qiang Cheng Tie Jun Cui | 2019 | China Communications2019,16,5: | 23 |
| 16 | Development of mechatronic driving system for seed meters equipped on conventional precision corn planter显示文摘Precision planters are more and more widely used for planting corn in China.Seed meters of conventional precision corn planters are usually driven by ground wheel and chain and sprocket system at present.Because of the slippage of ground wheels and vibration of chains,planting accuracy cannot be ensured,especially at higher forward speed.To improve the planting performance of precision planters,a mechatronic driving system was designed and its field working performance was evaluated in this research.A two-row pneumatic precision planter was modified to allow simultaneously using two different driving systems,i.e,with one row unit equipped with the newly designed mechatronic driving system and the other row unit equipped with conventional mechanical driving system,and used for planting at three forward speeds(9,11 and 12 km/h)on no-tillage and rotary-tillage lands.The distances between adjacent seeds in each plot were measured and the indices of uniformity in seed spacing,quality of feeding index(QFI),missing-seeding index and precision index were analyzed.With the average 4.70%increase of QFI and 3.54%decrease of missing-seeding index,the mechatronic driving system performed better than the mechanical driving system both on no-tillage and rotary-tillage lands at each forward speed.The values of QFI,missing-seeding index and precision index of the mechatronic driving system on rotary-tillage land are comparable to those on no-tillage land,by contrast,these indices of the mechanical driving system on rotary-tillage land are significantly worse than those on no-tillage land.The result indicates that the mechatronic driving system can eliminate the effect of ground wheel slippage on planting quality and maintain the uniformity of seed distribution.Although the QFI,missing-seeding index and precision index become worse with the increase of forward speed,with the worst values of QFI of 89.93%,missing-seeding index of 5.08%and precision index of 18.92%at the highest forward speed of 12 km/h,the mechatronic driving system can reduce the effect of forward speed on planting accuracy effectively.The result indicates that planters equipped with the mechatronic driving system are suitable for high speed planting.As compared to the mechanical driving system,the advantage of the mechatronic driving system is more noticeable especially when the forward speed is more than 11 km/h. | Yang Li He Xiantao Cui Tao Zhang Dongxing Shi Song Zhang Rui Wang Mantao | 2015 | International Journal of Agricultural and Biological Engineering2015,8,4: | 22 |
| 17 | Diverse modes of clonal evolution in HBV-related hepatocellular carcinoma revealed by single-cell genome sequencing显示文摘Hepatocellular 癌(HCC ) 是癌症实质词法,基因并且 phenotypic 差异。然而,我们不理解在 intratumor 异质和肿瘤的联系词法 / 组织学的特征之间的关系。用介绍 96 个肿瘤房间(30-36 各个) 和 15 个正常的肝房间(5 各个) 的单个房间的整个染色体的定序,与联系 HBV 的 HCC 从三个男病人收集了,我们证实拷贝数字变化在 hepatocarcinogenesis 早发生,但是此后在整个肿瘤仍然保持相对稳定前进。重要地,我们证明特定的 HCC 能具有 monoclonal 或 polyclonal 起源。有汇合的 multinodular 形态学的肿瘤是典型 polyclonal 肿瘤并且显示最高的 intratumor 异质。除了 mutational 和拷贝数字侧面,我们把了用导出 HBV 的外国 genomic 标记的 HCC 的同种细胞的起源。在 monoclonal HCC,所有肿瘤单身者房间展出一样的 HBV 集成,显示 HBV 集成是一个早司机事件并且在肿瘤前进期间仍然保持极其稳定。另外,我们的结果显示那两个都转移,迟了的传播并且早播种当模特儿,在 HCC 有一个角色前进。尤其是,开始的克隆传播的早 intrahepatic 导致同步 multifocal 肿瘤的形成。同时,我们在 HCC 识别了潜在的司机基因 ZNF717,它展出变化的高频率在单个房间并且人口铺平,,通过调整 IL-6/STAT3 小径行动的肿瘤 suppressor。这些调查结果热点多重不同肿瘤在 HCC 的进化机制,它为特定的处理策略建议需要。 | Meng Duan, Shu Zhang, Zhichao Wang, Jieyi Shi, Longzi Liu, Xiaoying Wang, Aiwu Ke, Jian Zhou, Jia Fan, Qiang Gao Junfeng Hao, Chong Li Sijia Cui Daniel L Worthley Ya Cao Ruibin Xi Xiaoming Zhang Jian Zhou, Jia Fan Qiang Gao | 2018 | Cell Research2018,28,3: | 21 |
| 18 | Urban Three-dimensional Expansion and Its Driving Forces——A Case Study of Shanghai,China显示文摘Urban expansion is a phenomenon of urban space increase,and an important measuring index of the process of urbanization.Taking Shanghai as an example,the changes of urban average height and built-up area were studied to represent city's vertical and horizontal increases respectively,and statistical methods were used to analyze the driving forces of urban expansion.The research drew following conclusions:1) The urban expansion process of Shanghai from 1985 to 2006 had a clear periodic feature,and could be divided into three stages:vertical expansion in dominance,coordinated vertical and horizontal expansion,and horizontal expansion in dominance.2) The average height and quantity of buildings in core city were significantly bigger than those in suburbs,but the changing speed of the latter was faster.And 3) urbanization process was the major driving force for the city's horizontal expansion,while industrial structure improvement was the key driving factor for the vertical expansion.Those two driving forces were simultaneously affected by city's political factors. | SHI Longyu SHAO Guofan CUI Shenghui LI Xuanqi LIN Tao YIN Kai ZHAO Jingzhu | 2009 | Chinese Geographical Science2009,19,4: | 20 |
| 19 | PERSPECTIVES IN MECHANICS OF HETEROGENEOUS SOLIDS显示文摘The Microand Nano-mechanics Working Group of the Chinese Society of Theoretical and Applied Mechanics organized a forum to discuss the perspectives,trends,and directions in mechanics of heterogeneous materials in January 2010.The international journal,Acta Mechanica Solida Sinica,is devoted to all fields of solid mechanics and relevant disciplines in science,technology,and engineering,with a balanced coverage on analytical,experimental,numerical and applied investigations.On the occasion of the 30 th anniversary of Acta Mechanica Solida Sinica,its editor-in-chief,Professor Q.S.Zheng invited some of the forum participants to review the state-of-the-art of mechanics of heterogeneous solids,with a particular emphasis on the recent research development results of Chinese scientists.Their reviews are organized into five research areas as reported in different sections of this paper.§I firstly brings in focus on microand nano-mechanics,with regards to several selective topics,including multiscale coupled models and computational methods,nanocrystal superlattices,surface effects,micromechanical damage mechanics,and microstructural evolution of metals and shape memory alloys.§II shows discussions on multifield coupled mechanical phenomena,e.g.,multi-fields actuations of liquid crystal polymer networks,mechanical behavior of materials under radiations,and micromechanics of heterogeneous materials.In §III,we mainly address the multiscale mechanics of biological nanocomposites,biological adhesive surface mechanics,wetting and dewetting phenomena on microstructured solid surfaces.The phononic crystals and manipulation of elastic waves were elaborated in §IV.Finally,we conclude with a series of perspectives on solid mechanics.This review will set a primary goal of future science research and engineering application on solid mechanics with the effort of social and economic development. | C.Q. Chen J.Z. Cui H.L. Duan X.Q. Feng L.H. He G.K. Hu M.J. Huang Y.Z. Huo B.H. Ji B. Liu X.H. Peng H.J. Shi Q.P. Sun J.X. Wang Y.S. Wang H.P. Zhao Y.P. Zhao Q.S. Zheng W.N. Zou | 2011 | Acta Mechanica Solida Sinica2011,24,1: | 18 |
| 20 | Fecal microbiota transplantation and prednisone for severe eosinophilic gastroenteritis显示文摘Eosinophilic gastroenteritis is a rare disease of unknown etiology.It is characterized by patchy or diffuse eosinophilic infiltration of the bowel wall to a variable depth and various gastrointestinal manifestations.We describe a case of severe eosinophilic gastroenteritis presenting as frequent bowel obstruction and diarrhea in a 35-year-old man.The patient was misdiagnosed and underwent surgery because of intestinal obstruction when he was first admitted to a local hospital.Then he was misdiagnosed as having Crohn’s disease in another university teaching hospital.Finally,the patient asked for further treatment from our hospital because of the on-going clinical trial for treating refractory Crohn’s disease by fecal microbiota transplantation.Physical examination revealed a slight distended abdomen with diffuse tenderness.Laboratory investigation showed the total number of normal leukocytes with neutrophilia as 90.5%,as well as eosinopenia,monocytopenia and lymphocytopenia.Barium radiography and sigmoidoscopy confirmed inflammatory stenosis of the sigmoid colon.We diagnosed the patient as having eosinophilic gastroenteritis by multi-examinations.The patient was treated by fecal microbiota transplantation combined with oral prednisone,and was free from gastrointestinal symptoms at the time when we reported his disease.This case highlights the importance of awareness of manifestations of a rare disease like eosinophilic gastroenteritis. | Yi-Xuan Dai Chuan-Bing Shi Bo-Ta Cui Min Wang Guo-Zhong Ji Fa-Ming Zhang | 2014 | World Journal of Gastroenterology2014,20,43: | 18 |