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| 1 | Mapping wetland changes in China between 1978 and 2008显示文摘Four wetland maps for all China have been produced,based on Landsat and CBERS-02B remote sensing data between 1978 and 2008 (1978,1990,2000 and 2008).These maps were mainly developed by manual interpretation and validated by substantial field investigation in 2009.Based on these maps,we analyzed the 2008 wetland distribution in China and discussed wetland changes and their drivers over the past 30 years.(i) There were about 324097 km 2 of wetlands in 2008,for which inland marshes or swamps were the most common wetland type (35%),with lakes (26%) second.Most of the wetlands were in Heilongjiang,Inner Mongolia,Qinghai and Tibet,occupying about 55% of the national wetland area.(ii) From 1978 to 2008,China's wetland area continually and significantly decreased,by about 33% based on changes in the wetland map.This was in sharp contrast to the increase in artificial wetlands,which increased by about 122%.Inland marshes accounted for the main loss of total wetlands from 1978 to 2000.From 2000 through 2008,riverine and lacustrine wetlands constituted the main wetland loss.Fortunately however,the rate of wetland loss decreased from 5523 to 831 km 2 /a.(iii) The change ratio of lost natural wetlands (including inland and coastal wetlands) to non-wetlands has decreased slightly over the past 30 years.From 1978 to 1990,nearly all natural wetlands (98%) lost were transformed into non-wetlands.However,the ratio declined to 86% from 1990 to 2000,and to 77% from 2000 to 2008.(iv) All Chinese provinces were divided into three groups according to patterns of wetland changes,which could relate to the driving forces of such changes.Tibet was completely different from other provinces,as it was one representative example in which there was a net wetland increase,because of global warming and decreased human activity since 1990.Increased economic development caused considerable wetland loss in most eastern provinces,and artificial wetlands increased. | NIU ZhenGuo ZHANG HaiYing WANG XianWei YAO WenBo ZHOU DeMin ZHAO KuiYi ZHAO Hui LI NaNa HUANG HuaBing LI CongCong YANG Jun LIU CaiXia LIU Shuang WANG Lin LI Zhan YANG ZhenZhong QIAO Fei ZHENG YaoMin CHEN YanLei SHENG YongWei GAO XiaoHong ZHU WeiHong WANG WenQing WANG Hong WENG YongLing ZHUANG DaFang LIU JiYuan LUO ZhiCai CHENG Xiao GUO ZiQi GONG Peng | 2012 | Chinese Science Bulletin2012,57,22: | 51 |
| 2 | Leaf morphology correlates with water and light availability:What consequences for simple and compound leaves?显示文摘叶子是对在进化的过程的环境变化敏感的机关并且可以作为对不能生活的应力的回答展出 phenotypic 粘性。然而,叶的肯定在不同环境的词法粘性和它的规定仍然是不清楚的。我们执行了一个模仿的实验在水和轻可获得性的不同坡度学习叶形态学的变化。就叶子和脉络的不同类型而言,当学习反对,我们选择了 Quercus acutissima 的羽状静脉的简单叶子和 Robinia 假相思树的复合叶子。我们调查了的词法参数包括能容易在这个领域里被测量的叶尺寸,形状和脉络模式。重要变化由于环境或异速生长的效果发生在许多参数。为叶有广泛地一致的趋势沿着坡度的词法变化。叶尺寸与资源的短供应变得更小。薄板区域的叶延伸和部分改变了提高资源获得和保存。在在支持和功能的结构的投资之间的交易优化了主要、次要的静脉的脉络模式。传单部分起了象叶牙齿那样的一个作用因为他们是复合的叶的不仅单个单位,而且部分。我们差不多建议那在词法变化的一样的趋势可以是重要解释让共存的种类适应类似的产地并且形成壁龛区别。 | Fei Xu Weihua Guo Weihong Xu Yinghua Wei Renqing Wang | 2009 | Progress in Natural Science:Materials International2009,19,12: | 22 |
| 3 | Evaluating the reliability of microsatellite genotyping from low-quality DNA templates with a polynomial distribution model显示文摘Molecular studies using trace DNA, such as from museum specimens, ancient or forensic samples and samples obtained noninvasively, often have a common problem of low quality of DNA templates. Amplification errors, such as allelic dropout and false allele, may arise during polymerase chain reaction (PCR) using such samples. A mathematical model which treats homozygotes and heterozygotes discriminately has been developed to measure sample quality and compute the confidence level of using multipletube approaches. We use plucked hair samples collected from 26 individual Sichuan snub-nosed monkeys (Rhinopithecus roxel- lana) to test the model. In this case, a confidence level of 99% can be achieved by three positive PCRs. If the sample quality is very poor and requires many PCR replicates, an alternative multiplestep genotyping method is recommended. This model enables researchers to optimize experimental protocols through pilot studies and obtain reliable genetic information using noninvasive sampling method. | HE Gangi HUANG Kang GUO SongTao JI WeiHong QI XiaoGuang REN Yi JIN XueLin LI BaoGuo | 2011 | Chinese Science Bulletin2011,56,24: | 8 |
| 4 | Reconfigurable manufacturing systems: Principles, design, and future trends显示文摘 | Yoram KOREN Xi GU Weihong GUO | 2018 | Frontiers of Mechanical Engineering2018,13,2: | 6 |
| 5 | Dominance rank of adult females and mating competition in Sichuan snub-nosed monkeys(Rhinopithecus roxellana)in the Qinling Mountains,China显示文摘Dominance hierarchy reflects resource competition in male primates as well as females.In this study,we collected data on the social rank and mating competition of female Sichuan snub-nosed monkeys from September 2009 to June 2010 in the Qinling Mountains,Shaanxi,China.Displacement was used to determine social hierarchy of the studied wild females.A total of 1223 displacement bouts between adult females and 316 mating behaviors within one-male units(OMUs) were recorded.Competitive displacement among females was very low(0.22 displacements per observation hour).The dominant ranks of females in target OMUs were determined by displacement,from one OMU to another:JB unit:YL > DBC > YCM >XBC > BD;JZT unit:XHW > JG > DT;PK unit:QQ > TM > HF;LP unit:SK > TH > WM.Higher-ranking females performed significantly more sexual behavior than lower-ranking females in this rare monkey.High-ranking females were more likely to win mating contests within those OMUs.Based on these studies,we assessed the social relationships among adult females and clarified possible explanations for the strategies of female mating competition in the OMUs.Furthermore,the notion that reproductive success may also be related to female dominance hierarchies in this polygynous species should be considered in future research. | HE HaiXia ZHAO HaiTao QI XiaoGuang WANG XiaoWei GUO SongTao JI WeiHong WANG ChengLiang WEI Wei LI BaoGuo | 2013 | Chinese Science Bulletin2013,58,17: | 5 |
| 6 | Stiffeners layout design of thin-walled structures with constraints on multi-fastener joint loads显示文摘The purpose of this paper is to present an extended topology optimization method for the stiffeners layout design of aircraft assembled structures. Multi-fastener joint loads and manufacturing constraints are considered simultaneously. On one hand, the joint loads are calculated and constrained within a limited value to avoid the failure of fasteners. On the other hand, the manufacturing constraints of the material distribution in the machining directions of stiffeners are implemented by an improved piecewise interpolation based on a beveled cut-surface. It is proven that the objective function is strictly continuous and differentiable with respect to the piecewise interpolation. The effects of the extended method with two different constraints are highlighted by typical numerical examples. Compared with the standard topology optimization, the final designs have clearly shown the layout of stiffeners and the joint loads have been perfectly constrained to a satisfying level. | Jie HOU Jihong ZHU Fei HE Weihong ZHANG Wenjie GUO | 2017 | Chinese Journal of Aeronautics2017,30,4: | 5 |
| 7 | Variation in transboundary flow of Nujiang River and its correlation with summer monsoon under the effect of the Longitudinal Range-Gorge显示文摘在在纵的范围峡(LRG ) 的地形学的效果下面的 Nujiang 河 transboundary 流动和夏天季风活动的变化之间的关系被检验。学习基于观察的河流动数据,和他们与环境预言( NCEP )的国家中心和大气的研究( NCAR )的国家中心的重新分析的 U/V 风领域的关联的统计分析,并且国家海洋、大气的管理( NOAA )的出去的 Longwave 放射( OLR )的数据。transboundary 河流动主要被集中在,这被结束湿或雨季(从 5 月到 10 月) ,特别地在夏天或洪水季节(从 6 月到 8 月) 。有一个清楚的趋势让 transboundary 河流动自从 1970 年代,与时间增加,自从 1980 年代特别地明显。由于地形学的东方西方障碍和 LRG 的纵贯的走廊效果,夏天河流动变化大部分与风被相关在高、低的高度南方、在北方。相反,河流动变化显然与风被相关仅仅在高高度,不是在低高度在东方、西。在 OLR 和河流动变化之间的否定关联也是明显的。这些关系是用索引在这篇论文建议了的二夏天季风描述的份量上。索引 MI 2 包括动态并且 thermodynamical 在 Nujiang 河盆的 LRG 区域完成并且给 transboundary 河流动变化的一个通常好的代表。更大的 MI 2 代表更强壮的夏天季风活动和更高的 transboundary 河流动,当更小的 MI 2 建议更弱的季风循环和更低的水流动时。 | YOU WeiHong GUO ZhiRong HE DaMing | 2007 | Chinese Science Bulletin2007,52,A02: | 4 |
| 8 | Optimal operation of cold–heat–electricity multi-energy collaborative system based on price demand response显示文摘In a multi-energy collaboration system, cooling, heating, electricity, and other energy components are coupled to complement each other. Through multi-energy coordination and cooperation, they can significantly improve their individual operating efficiency and overall economic benefits. Demand response, as a multi-energy supply and demand balance method, can further improve system flexibility and economy. Therefore, a multi-energy cooperative system optimization model has been proposed, which is driven by price-based demand response to determine the impact of power-demand response on the optimal operating mode of a multi-energy cooperative system. The main components of the multi-energy collaborative system have been analyzed. The multi-energy coupling characteristics have been identified based on the energy hub model. Using market elasticity as a basis, a price-based demand response model has been built. The model has been optimized to minimize daily operating cost of the multi-energy collaborative system. Using data from an actual situation, the model has been verified, and we have shown that the adoption of price-based demand response measures can significantly improve the economy of multi-energy collaborative systems. | Yuwei Cao Liying Wang Shigong Jiang Weihong Yang Ming Zeng Xiaopeng Guo | 2020 | Global Energy Interconnection2020,3,5: | 4 |
| 9 | Ribozyme probe based on molecular beacon for real time monitoring of enzymatic cleavage process显示文摘Ribozyme probe based on molecular beacon (MBR) for monitoring enzymatic cleavage process in real time is designed and studied. The approach relies on ri-bozyme substrates modified at the two arms, with a fluores-cent moiety attached to the end of one arm and a non-fluorescent quenching moiety attached to the end of the other arm. MBR is employed to directly convert the cleavage information into fluorescence signal in real time. Compared with traditional approach, this method provides a no-radiolabeling, sensitive and effective way to research on the ribozyme activity, enzymatic dynamic process and ri-bozyme function during gene therapy. The activity of the ribozyme against hepatitis C virus RNA (HCV-RNA) is stud-ied based on this assay. | MENG Xiangxian, WANG Kemin, TAN Weihong, LI Jun, TANG Zhiwen, GUO Qiuping, HUANG Shasheng & LI Du State Key Laboratory of Chemo/Biosensing and Chemometrics, Institute of Biological Technology, College of Chemistry and Chemical Engi-neering, Hunan University, Changsha 410082, China Correspondence should be addressed to Wang Kemin (e-mail: kmwang @hnu.net.cn) | 2003 | Chinese Science Bulletin2003,48,23: | 3 |
| 10 | Restoration of Eroded Thickness of the Neogene Strata in the Western Qaidam Basin and Its Significance for Oil and Gas Occurrence显示文摘During the Pleistocene,the western Qaidam Basin has largely experienced strong structural reconstruction and strong erosion.First,the eroded thickness of Neogene strata was restored approximately by the stratigraphic profile comparison method and plane trend surface restoring method;then,accurate calculation of erosion was recovered using vitrinite reflectance,and the erosion that was restored by the trend surface restoring method was corrected;finally,a distribution map of cumulative erosion was produced.This study marks an important achievement in that one of the most important parameters of basin tectonic evolution,sedimentary evolution,and oil and gas accumulation history has been obtained,and that a basic geological problem has been solved in the Qaidam Basin.The areas with high erosion and low erosion are shown in the map and a close relation between the distribution of oil and gas fields and erosion was recognized.Large and medium oil and gas fields are mainly distributed in areas with medium and low erosion.It is difficult to form large-scale oil and gas accumulation in areas in which erosion is more than 2000 m.The mechanism of the relation between oil and gas distribution and erosion is explained.This study will be of use in predicting the distribution of oil and gas. | SUN Ping GUO Zeqing HE Wenyuan LIU Weihong | 2017 | Acta Geologica Sinica(English Edition)2017,91,4: | 3 |
| 11 | Low-Complexity Signal Detection Based on Relaxation Iteration Method in Massive MIMO Systems显示文摘Minimum mean square error(MMSE) detection algorithm can achieve nearly optimal performance when the number of antennas at the base station(BS) is large enough compared to the number of users. But the traditional MMSE involves complicated matrix inversion. In this paper, we propose a modified MMSE algorithm which exploits the channel characteristics occurring in massive multiple-input multipleoutput(MIMO) channels and the relaxation iteration(RI) method to avoid the matrix inversion. A proper initial solution is given to accelerate the convergence speed. In addition, we point out that the channel estimation scheme used in channel hardening-exploiting message passing(CHEMP) receiver is very appropriate for our proposed detection algorithm. Simulation results verify that the proposed algorithm can achieve very close performance of the traditional MMSE algorithm with a small number of iterations. | GUO Ruohan LI Xiaohui FU Weihong HEI Yongqiang | 2015 | China Communications2015,12,S1: | 3 |
| 12 | Natural Gas Types,Distribution Controlling Factors,and Future Exploration in the Western Qaidam Basin显示文摘The Paleogene and Neogene oil and gas in the western Qaidam basin have a regular distribution in three concentric zones from the edge to the center of the basin.Natural gas mainly occurs in the inner zone,and the gas-oil ratio of the northern area of the basin is significantly higher than that of the southern area.Large amounts of carbon isotope data of natural gas,plotted in Xshaped and comprehensive identification diagrams for the southern area and northern area,respectively,were used to identify the types of natural gas.The large-scale distribution of natural gas is highly consistent with the Ro values of major source rocks,but is poorly correlated with the type of organic matter.This indicates that the main controlling factor of natural gas distribution is organic matter maturity,and the kerogen types act as the basis for the formation of different types of natural gas.Paleouplifts and squeezed anticlines near hydrocarbon generation depression centers,which are major natural gas-rich regions,control the migration directions of natural gas,while hydrocarbon migration pathways and fault systems connecting gas sources are the most important factors for natural gas reservoir formation in the inner basin.Therefore,favorable zones for natural gas distribution can be predicted on the basis of the distribution of thermal evolution and the gas generation intensity of major source rocks as well as the structural map.The Shizigou-YoushashanYingdong-Dawusi,Youquanzi –Kaitemilike- Youdunzi,and Xiaoliangshan – Nanyishan- Dafengshan structural belts are favorable zones for natural gas accumulation.This study has important theoretical and practical significance for future natural gas exploration. | GUO Zeqing SUN Ping LI Jian ZHANG Lin LIU Weihong TIAN Jixian ZHANG Shaosheng ZENG Xu | 2014 | Acta Geologica Sinica(English Edition)2014,88,4: | 3 |
| 13 | Traditional Chinese Medicine symptom patterns in patients with colorectal carcinoma显示文摘OBJECTIVE: To observe the symptom patterns(or syndromes) according to Traditional Chinese Medicine(TCM) theory in patients with various stages of colorectal cancer, and to observe the dynamic evolution process of these TCM patterns.METHODS: A prospective and cross-sectional questionnaire-based investigation was performed. Clinical data on TCM symptom patterns in patients with colorectal cancer in the perioperative period(210 cases) and adjuvant treatment period(160 cases)were collected. EPIData 3.1 together with frequency statistics and cluster analyses were performed to identify the TCM patterns based on symptom characteristics in patients with colorectal cancer, and to assess the dynamic changes in these patterns.RESULTS: In the perioperative period, from the first day of perioperative care to postoperative days 3,7, and 10, the TCM pattern showed a process of dynamic change from blood deficiency to deficiency of both Qi and Yin and the pattern of dampness and hot accumulative knotting. In the adjuvant treatment period, the TCM pattern changed from Qi deficiency and Yin deficiency inner-heat with dampness to a deficiency pattern, primarily including Yin deficiency of the liver and kidney, deficiency of Qi and blood, and spleen deficiency.CONCLUSION: Our study confirmed that variations in the dynamic evolution of TCM symptom patterns exist in patients with colorectal cancer during different treatment periods. This information is of great value in the individualized management of colorectal cancer. | Li Yan Gu Jianzhong Zhou Huamiao Wang Hui Zou Ying Yang Weihong Guo Yong | 2018 | Journal of Traditional Chinese Medicine2018,38,2: | 3 |
| 14 | Novel protein detection method based on proximity- dependent polymerase reaction and aptamers显示文摘In recent years, specific detection of proteins is one of the hot issues about aptamers in proteomics. Here we reported a simple, sensitive and specific proximity-dependent protein assay with dual DNA aptamers. Thrombin was used as the model protein, and two aptamer probes with complementary se- quence at 3′-end were designed for the two distinct epitopes of the protein. Association of the two ap- tamers with thrombin resulted in stable hybrids due to the proximity of 3′-end, then polymerase reac- tion was induced. The amount of obtained dsDNA was indicated using the fluorescence dye Sybr Green I. The results showed that the initial velocity of polymerase reaction had a positive correlation with concentration of thrombin. The advantages of this dual-aptamer-based approach included simple and flexible design of aptamer probes, high selectivity and high sensitivity. The detection limit was 6.9 pmol/L. | YANG XiaoHai WANG Lei WANG KeMin TAN WeiHong TANG HongXing MENG XiangXian GUO QiuPing | 2008 | Chinese Science Bulletin2008,53,2: | 3 |
| 15 | Synthesis and DNA Adsorption of Poly(2-Vinyl-4,6-Diamino-1,3,5-Triazine)Coated Polystyrene Microspheres显示文摘To take advantage of the polymer's special properties, we synthesized PVDAT coated polystyrene(PVDAT@PS) microspheres through semi-continuous precipitation polymerization, and demonstrated the possibility of controlling the size of microspheres by using different sized PS cores. Mechanism of the microsphere synthesis was investigated. Preliminary application studies indicated that the synthesized microspheres adsorbed double-stranded DNAs(dsDNAs) comprising A-T base pairs in pH7.4 phosphate buffered saline, and the adsorption capacity was in a range of 3.28 mg to 5.58 mg per gram PVDAT@PS microspheres depending on A-T base pair percentage and chain length of the dsDNAs. | 黄雷 王小涛 XIE Xun XIE Weihong LI Xuefeng GONG Xinghou LONG Shijun GUO Huiling 刘最芳 | 2018 | Journal of Wuhan University of Technology(Materials Science)2018,33,4: | 3 |
| 16 | A hydrophilic fluorescent polymer containing naphthalimide moiety as chemosensor for microbioreactors显示文摘A novel hydrophilic copolymer P(NI-HEMA) containing the pendant group of naphthalimide moiety has been prepared. In the aqueous buffer solution, its film on the glass substrate shows an obvious fluorescence change and excellent linear relevance in the pH range of 5.8-8.0. Specifically, using the isobestic point at 406 nm as excitation wavelength can avoid the UV irradiation and the tedious calibration process. The film stability and hydrophilicity of copolymer P(NI-HEMA) were studied. Because of the easy synthesis, low price and high linear relevance to pH, the hydrophilic chemosensor film of P(NI- HEMA) could be potentially applied as a low-cost pH indicator for high-throughput bioprocessing in microreactors. | SHEN LiangJun ZHU WeiHong MENG XianLe GUO ZhiQian TIAN He | 2009 | Science China Chemistry2009,52,6: | 2 |
| 17 | Application of TruScreen in detecting ASCUS patients显示文摘Objective:To explore the application of cervical cancer screening system,TruScreen in detecting atypical squamous cell of undetermined significance(ASCIIS) patients.Methods:A total of 42 cases were selected,who were diagnosed as ASCIIS by thinprep cytologic test(TCT).Area from site 15 to 20,site 21 to 32 were detected by TruScreen.And the result was compared with those of cases which had positive pathological result of cervical biopsy.Results:There were 16 cases with abnormal pathological result in ASCUS cases,including 6 cases with cervical intraepithelial neoplasia(CIN)Ⅰ,6 cases with CINⅡ,3 cases with CINⅢand 1 case with infiltrating carcinoma. The consistency between TCT and pathological test was 38.10%(16/42).The positive rate of TruScreen at site 15-20 was 61.91%(26/42).There was significant difference in consistency with pathological test between TCT and TruScreen(x^2=4.762,P=0.029).The positive rate of TruScreen at site 21-32 was 66.67%(28/42)(Kappa=0.181,P=0.016).There was significant difference in consistency with pathological test between TCT and TruScreen(x^2=9.4919,P=0.002).And no case was missed when site 21-32 of patients with CINⅡand above were detected by TruScreen. Conclusions:TruScreen is effective in detecting ASCUS patients. | Weihong Li Yu Guo Haiyan Niu Song Jin Li Wang | 2011 | Asian Pacific Journal of Tropical Medicine2011,4,8: | 2 |
| 18 | Extended SRC: Un- dersampled Face Recognition via Intra-Class Variant Dic- tionary显示文摘 | Deng Weihong Hu Jiani Guo Jun | 2012 | IEEE Transactions on Pattern Analysis and Machine Intelligence2012,34,9: | 1 |
| 19 | Dynamic mechanical properties of acrylic rubber blended with phenolic resin 显示文摘 | WuCaiyun Wei Chunyan Guo Weihong Wu Chifei | 2008 | Journal of Applied Polymer Science2008,109,: | 1 |
| 20 | Structure and properties of compatibilized recycled poly(ethylene terephthalate)/linear low density polyethylene blends显示文摘 | Hongsheng Zhang Weihong Guo Yingbo Yu | 2007 | European Polymer Journal2007,43,: | 1 |