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| 1 | Modern stalagmite oxygen isotopic composition and its implications of climatic change from a high-elevation cave in the eastern Qinghai-Tibet Plateau over the past 50 years显示文摘An oxygen isotope record of a stalagmite from Huanglong Cave in the eastern Qinghai-Tibet Plateau dated with 230Th and 210Pb methods provides variations of the Asian monsoon with an average resolu-tion of 1 year over the past 50 years. This study shows that the δ18O of dripwater in the cave represents the annual mean δ18O of local meteoric precipitation and the stalagmites were deposited in isotopic equilibrium. A comparison of the stalagmite δ18O record with instrumentally meteorological data indi-cates that shifts of the δ18O are largely controlled by the amount effect of meteoric precipitation con-veyed through the southwest monsoon(the Indian monsoon) and less affected by temperature. Therefore,the variations of δ18O record reflect the changes in monsoon precipitation on inter-annual time scales under the influence of the southwest monsoon. Like many other stalagmite δ18O records in the Asian monsoon regions,the δ18O record of the stalagmite from Huanglong Cave also reveals a gradually enriched trend during the past 50 years,i.e. relatively enriched in 18O. This trend may indicate the decline of the Asian monsoon intensity which is consistent with the decrease of monsoon indices. The weakening of the modern Asian monsoon well matched with the temperature changes in strato-sphere,which may illustrate that the weakening of the monsoon mainly results from the lowering of solar radiation. | YANG XunLin ZHANG PingZhong CHEN FaHu HUH Chih-an LI HongChun CHENG Hai Kathleen R. JOHNSON LIU JingHua AN ChunLei | 2007 | Chinese Science Bulletin2007，52，9： | 20 |
| 2 | Late Cretaceous-Cenozoic exhumation history of Tiantangzhai region of Dabieshan Orogen: Constraints from (U-Th)/He and fission track analysis显示文摘Integrated fission track and (U-Th)/He analysis is carried out on 6 apatite and 6 zircon samples from a near vertical section in The Tiantangzhai region at the core of the present Dabieshan orogen. The result shows that the region experienced cooling/exhumation during the Late Cretaceous and Early Tertiary period. Age-elevation relationships for different dating systems and different minerals suggest a pulse of rapid exhumation at ~110 Ma before present, preserved in the structurally highest samples. At lower elevations, ages begin to decrease with decreasing elevation, suggesting lower exhumation rates since 90 Ma. Two periods of different exhumation rates are identified since 90 Ma. The average apparent exhumation rate for the period of 43.4-22.5 is 0.062 km/Ma, whereas that for the period of 76.4-47.4 Ma is 0.039 km/Ma. | ZHOU Zuyi XU Changhai P. W. Reiners YANG Fengli R. A. Donelick | 2003 | Chinese Science Bulletin2003，48，11： | 20 |
| 3 | A Modified Entropy Generation Number for Heat Exchangers显示文摘AModifiedEntropyGenerationNumberforHeatExchangersAModifiedEntropyGenerationNumberforHeatExchangers￥Z.M.Xu;S.R.Yang(Department... | Z. M. Xu S. R. Yang Z. Q. Chen | 1996 | Journal of Thermal Science1996，5，4： | 14 |
| 4 | Asian summer monsoon precipitation recorded by stalagmite oxygen isotopic composition in the western Loess Plateau during AD1875―2003 and its linkage with ocean-atmosphere system显示文摘Based on 5 high-precision 230Th dates and 103 stable oxygen isotope ratios (δ18O) obtained from the top 16 mm of a stalagmite collected from Wanxiang Cave,Wudu,Gansu,variation of monsoonal precipita-tion in the modern Asian Monsoon (AM) marginal zone over the past 100 years was reconstructed. Comparison of the speleothem δ18O record with instrumental precipitation data at Wudu in the past 50 years indicates a high parallelism between the two curves,suggesting that the speleothem δ18O is a good proxy for the AM strength and associated precipitation,controlled by 'amount effect' of the pre-cipitation. Variation of the monsoonal precipitation during the past 100 years can be divided into three stages,increasing from AD 1875 to 1900,then decreasing from AD 1901 to 1946,and increasing again thereafter. This variation is quite similar to that of the Drought/Flooding index archived from Chinese historical documents. This speleothem-derived AM record shows a close association with the Pacific Decadal Oscillation (PDO) between AD 1875 and 1977,with higher monsoonal precipitation corre-sponding to cold PDO phase and vice versa at decadal timescale. The monsoonal precipitation varia-tion is out of phase with the PDO after AD 1977,probably resulting from the decadal climate jump in the north Pacific occurring at around AD 1976/77. These results demonstrate a strong linkage between the AM and associated precipitation and the Pacific Ocean via ocean/atmosphere interaction. This rela-tionship will aid to forecast future hydrological cycle for the AM monsoon region,and to improve forecasting potential of climatic model with observation data from cave. | LIU JingHua ZHANG PingZhong CHENG Hai CHEN FaHu YANG XunLin ZHANG DeZhong ZHOU Jing JIA JiHong AN ChunLei SANG WenCui Kathleen R. JOHNSON | 2008 | Chinese Science Bulletin2008，53，13： | 13 |
| 5 | Understanding the Unique Characteristics of Suicide in China: National Psychological Autopsy Study显示文摘Objective To compare the characteristics of suicides in the four main demographic groups: urban males, urban females,rural males and rural females in order to help clarify the demographic pattern of suicides in China. Methods A detailed psychological autopsy survey instrument was independently administered to 895 suicide victims in family members and close associates from 23 geographically representative locations from around the country. Results Pesticide ingestion accounted for 58% (519) of all suicides and 61% (318/519) of deaths were due to unsuccessful medical resuscitation. A substantial proportion (37%) of suicide victims did not have a mental illness. Among the 563 victims with mental illness, only 13%(76/563) received psychiatric treatment. Compared to other demographic groups, young rural females who died from suicide had the highest rate of pesticide ingestion (79%), the lowest prevalence of mental illness (39%), and the highest acute stress from precipitating life events just prior to the suicide. Conclusion Many suicides in China are impulsive acts of deliberate self-harm following acute interpersonal crises. Prevention of suicides in China must focus on improving awareness of psychological problems, improving mental health services, providing alternative social support networks for managing acute interpersonal conflicts, limiting access to pesticides, and improving the resuscitation skills of primary care providers. | GONG-HUAN YANG MICHAEL R. PHILLIPS MAI-GENG ZHOU LI-JUN WANG YAN-PING ZHANG DONG XU | 2005 | Biomedical and Environmental Sciences2005，18，6： | 12 |
| 6 | Estimating biophysical parameters of rice with remote sensing data using support vector machines显示文摘Hyperspectral reflectance (350-2500 nm) measurements were made over two experimental rice fields containing two cultivars treated with three levels of nitrogen application.Four different transformations of the reflectance data were analyzed for their capability to predict rice biophysical parameters,comprising leaf area index (LAI;m-2 green leaf area m-2 soil) and green leaf chlorophyll density (GLCD;mg chlorophyll m 2 soil),using stepwise multiple regression (SMR) models and support vector machines (SVMs).Four transformations of the rice canopy data were made,comprising reflectances (R),first-order derivative reflectances (D1),second-order derivative reflectances (D2),and logarithm transformation of reflectances (LOG).The polynomial kernel (POLY) of the SVM using R was the best model to predict rice LAI,with a root mean square error (RMSE) of 1.0496 LAI units.The analysis of variance kernel of SVM using LOG was the best model to predict rice GLCD,with an RMSE of 523.0741 mg m-2.The SVM approach was not only superior to SMR models for predicting the rice biophysical parameters,but also provided a useful exploratory and predictive tool for analyzing different transformations of reflectance data. | YANG XiaoHua HUANG JingFeng WU YaoPing WANG JianWen WANG Pei WANG XiaoMing Alfredo R. HUETE | 2011 | Science China(Life Sciences)2011，54，3： | 12 |
| 7 | Biogenic production of DMSP and its degradation to DMS—their roles in the global sulfur cycle显示文摘Dimethyl sulfide(DMS) is the most abundant form of volatile sulfur in Earth’s oceans, and is mainly produced by the enzymatic clevage of dimethylsulfoniopropionate(DMSP). DMS and DMSP play important roles in driving the global sulfur cycle and may affect climate. DMSP is proposed to serve as an osmolyte, a grazing deterrent, a signaling molecule, an antioxidant, a cryoprotectant and/or as a sink for excess sulfur. It was long believed that only marine eukaryotes such as phytoplankton produce DMSP. However, we recently discovered that marine heterotrophic bacteria can also produce DMSP, making them a potentially important source of DMSP. At present, one prokaryotic and two eukaryotic DMSP synthesis enzymes have been identified.Marine heterotrophic bacteria are likely the major degraders of DMSP, using two known pathways: demethylation and cleavage.Many phytoplankton and some fungi can also cleave DMSP. So far seven different prokaryotic and one eukaryotic DMSP lyases have been identified. This review describes the global distribution pattern of DMSP and DMS, the known genes for biosynthesis and cleavage of DMSP, and the physiological and ecological functions of these important organosulfur molecules, which will improve understanding of the mechanisms of DMSP and DMS production and their roles in the environment. | Xiao-Hua Zhang Ji Liu Jingli Liu Guipeng Yang Chun-Xu Xue Andrew R. J. Curson Jonathan D. Todd | 2019 | Science China(Life Sciences)2019，62，10： | 11 |
| 8 | Spatial and seasonal characterization of net primary productivity and climate variables in southeastern China using MODIS data显示文摘We developed a sophisticated method to depict the spatial and seasonal characterization of net primary productivity (NPP) and climate variables. The role of climate variability in the seasonal variation of NPP exerts delayed and continuous effects. This study expands on this by mapping the seasonal characterization of NPP and climate variables from space using geographic information system (GIS) technology at the pixel level. Our approach was developed in southeastern China using moderate-resolution imaging spectroradiometer (MODIS) data. The results showed that air temperature,precipitation and sunshine percentage contributed significantly to seasonal variation of NPP. In the northern portion of the study area,a significant positive 32-d lagged correlation was observed between seasonal variation of NPP and climate (P<0.01),and the influences of changing climate on NPP lasted for 48 d or 64 d. In central southeastern China,NPP showed 16-d,48-d,and 96-d lagged correlation with air temperature,precipitation,and sunshine percentage,respectively (P<0.01); the influences of air temperature and precipitation on NPP lasted for 48 d or 64 d,while sunshine influence on NPP only persisted for 16 d. Due to complex topography and vegetation distribution in the southern part of the study region,the spatial patterns of vegetation-climate relationship became complicated and diversiform,especially for precipitation influences on NPP. In the northern part of the study area,all vegetation NPP had an almost similar response to seasonal variation of air temperature except for broad crops. The impacts of seasonal variation of precipitation and sunshine on broad and cereal crop NPP were slightly different from other vegetation NPP. | Dai-liang PENG Jing-feng HUANG Alfredo R. HUETE Tai-ming YANG Ping GAO Yan-chun CHEN Hui CHEN Jun LI Zhan-yu LIU | 2010 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2010，11，4： | 10 |
| 9 | Nature:研究鉴定出蛋白Nlrp9b抵抗轮状病毒感染机制显示文摘轮状病毒(rotavirus)是婴儿和儿童罹患肠胃炎和腹泻的一种最为常见的原因,每年导致全世界大约21.5万人死亡。它是高度传染性的和潜在致命性的。这种病毒特异性地感染宿主小肠中的肠上皮细胞,并且已进化出抵抗干扰素和NF-KB信号的策略来躲避免疫系统,这就提出一个问题:其他的宿主因子是否参与肠道粘膜中的抗病毒反应。不过,针对体内(特别是通过NLR炎性体)检测和限制肠道病毒的机制,人们知之甚少。 | Shu Zhu, Zheng Wei, Noah W. Palm, Yi Yang, Hua Yu, Hua-Bing Li, Geng Wang, Xuqiu Lei, Marcel R. de Zoete, Jun Zhao, Yunjiang Zheng, Haiwei Chen, Liang Shan, Richard A. Flavell Siyuan Ding, Ningguo Feng, Harry B. Greenberg Siyuan Ding, Harry B. Greenberg Penghua Wang, Yujiao Zhao Wen Pan, Jun Lu Jun Zhao, Yuval Kluger Kellie A. Jurado, Clara Abraham, Erol Fikrig Erol Fikrig, Richard A. Flavell | 2017 | 现代生物医学进展2017，17，27： | 10 |
| 10 | Late Cretaceous biota and the Cretaceous-Paleogene(K--Pg)Boundary in Jiayin of Heilongjiang,China显示文摘An international cooperative study of the Late Cretaceous biota and non-marine strata including the Cretaceous-Paleogene(K--Pg) boundary in Jiayin near the Heilongjiang River,China during 2002-2010,is summarized in this paper. The strata includes the Upper Cretaceous Yong'ancun-,Taipinglinchang-,Yuliang-zi-,and Furao formations,and the Paleocence Wuyun Formation consisting of Baoshantou Member and a Coalbearing Member. Seven palynological assemblages from Santonian to Paleocene are recognized,which is used for definition of the K--Pg boundary. Through the palynological analysis of three drilled boreholes (XHY-2005,2006,2008) in Xiaoheyan of western Jiayin,the K--Pg boundary is defined within 20. 00-20. 05 m in the borehole XHY-2006 (as a standard boundary) which is just between the top of Furao Formation (late Maasterichtian) and the base of Baishantou Member (early Danian) . These new research results are supported by paleo- magnetic,geochemical and other analyses,also. On the other hand,the presence of eight taxa of Maasterichtian dinosaurs (mostly hadrosaurids) have been recognized by the authors; and two mega-plant assemblages from the Yong'ancun Fm (Santonian) to Taipinglinchang Fm (Campanian) are confirmed. These research a-chievements indicate that the Upper Cretaceous-Paleocene in Jiayin can be well correlated to the strata in the neighboring Zeya-Bureja basin,Russia. The K--Pg boundary definited in Jiayin is the first well documented non-marine K--Pg boundary in China. Also the related paleoclimate,paleoenvironment and the mass extinctions in this area during the Cretaceous-Paleocene transition are also discussed. | Sun G. Akhmetiev M. Markevich V. Ashraf A. R. Bugdaeva E. Godefroit P. Bolotsky Yu. Dong Z. M. Golovneva L. Yang H. X. Sun C. L. Sun Y. W. Quan C. Kodrul T. Kezina T. Johnson K. Nishida H Dilcher D. L. Harding I. Chen Y. J. | 2011 | Global Geology2011，14，3： | 9 |
| 11 | Gly(82)Ser polymorphism of the receptor for advanced glycation end products is associated with an increased risk of gastric cancer in a Chinese population显示文摘 | Gu, H.J. Yang, L. Sun, Q. M. Zhou, B. Tang, N. P. Cong, R. H. Zeng, Y. Wang, B. | 2008 | 南京医科大学学报(自然科学版)2008，28，9： | 9 |
| 12 | Structure and Property of Bamboo Fiber显示文摘The chemical composition, fiber characteristics, crystalline structure, mechanical properties and thermal behavior of the five species of bamboo (Phyllostachys edulis cv.Pachyloe, Bambusa tootisk, Arundinaia amabilis, B.vulgaris cv. Vittata, and Dendrocalamus affinis) were studied with IR, X-ray, DSC and chemical analyses. The results indicated that the benzene-ethanol extractive content of bamboo was higher than that of wood, the content of lignin and the content of pentosan were 19.1% - 25.3% and 14.9% - 22.6%, respectively. Except for Ph. edulis cv. Pachyloe, the cellulose content in the other 4 species was over 50%. The average length of fiber of D. affinis was the longest (1.861 mm). The length/ width ratio of bamboo fiber was also higher than that of wood, and it was the highest for B.tootisk, which reached 142. The results of IR and X-ray confirmed that crystalline structure of bamboo fibers was cellulose, and A. amabilis had the highest crystallinity index. The differential thermal analysis (DSC) can be one of the methods to identify various fiber materials. After steam explosive pretreatment, cellulose content of D. affinis had increased from 50.5% to 69.2%, the crystallinity index had increased and the breaking tenacity of bamboo fibers was suitable for producing textile products, indicating that steam explosion is an useful pretreatment for bamboo fibers made into composite materials and textiles. | JIANG Jianxin1 YANG Zhongkai2 ZHU Liwei1 SHI Limin2 YAN Lijie1 1. College of Materials Science and Technology, Beijing Forestry University, Beijing100083, P. R. China 2 .Beijing Municipal Key Laboratory of Clothing Materials R & D and Assessment, Beijing Institute of Clothing Technology, Beijing 100029, P. R. China. | 2008 | Chinese Forestry Science and Technology2008，7，2： | 8 |
| 13 | Effect of vacuum level on microstructure and mechanical properties of titanium-steel vacuum roll clad plates显示文摘 | De-han Yang Zong-an Luo Guang-ming Xie Ming-kun Wang R. D. K. Misra | 2018 | Journal of Iron and Steel Research(International)2018，25，1： | 8 |
| 14 | A Type of Language Field Integrated Algorithm Used for Analysis and Control of Complicated System显示文摘ATypeofLanguageFieldIntegratedAlgorithmUsedforAnalysisandControlofComplicatedSystemYangBingruDepartmentofComputerScienceandEn... | Yang Bingru Department of Computer Science and Engineering, University of Science and Technology of Beijing, 100083, P. R. China | 1998 | Journal of Systems Engineering and Electronics1998，9，1： | 7 |
| 15 | KD(D&K) and Double-Bases Cooperating Mechanism显示文摘KD(D&K) (Synthesized Knowledge Discovery System based on Database and KnowledgeBase Cooperating Mechanism) is first advanced in this paper on the basis of KDD (KnowledgeDiscovery System based on Database) and KDK (Knowledge Discovery System based on KnowledgeBase). KD (D&K) is not simple addition of KDD and KDK but a new system with absolutelynew character and essential development, which is distinct from KDD and KDK and includes them.Not only the generalized structural frame of control rules KD (D&K) acquiring method is proposed,but also the theoretical basis of its key technical problem--don ble-bases cooperating mechanism isdiscussed according to the original academic idea to restrict KDD by basic knowledge base. | Yang Bingru(School of information Engineering,University of Science and Technology of BeiJing,100083, P. R. China)Xiong Fanlun(The institute of Intelligent Machine, Academic Sinica,Hefei 230031, P. R. China) | 1999 | Journal of Systems Engineering and Electronics1999，10，2： | 7 |
| 16 | The Effect of Tide on the Global Climate Change显示文摘The differential rotation between the solid and fluid spheres caused by tidal force could explain the 1500 to 1800-year cycle of the world's temperature. Strong tide increases the vertical and horizontal mixing of water in the oceans, drawing the cold Pacific water from the depths to the surface and the warm water from the west to the east, where it cools or warms the atmosphere above, absorbs or releases CO2 to decrease or increase greenhouse effect and to make La Nina or El Nino occur in the global. The moon's declination and obliquity of the ecliptic affect the tidal intensity. The exchange of tidal energy and tide-generating force caused by the sun, moon and major planets makes the earth's layers rotate in different speeds. The differenti-al rotation between solid and fluid of the earth is the basic reason for El Nino and global climate change. | YANG Xuexiang, CHEN Zhen and CHEN Dianyou( College of Ceo - exploration Science and Technology, Jilin University, Changchun 130026, P. R. China)Qiao Qiyuan(National Astronomical Observatory, Chinese Academy of Science, Beijing 100012, P. R. China) | 2002 | Global Geology2002，7，1： | 7 |
| 17 | Study on Missile Intelligent Fault Diagnosis System Based on Fuzzy NN Expert System显示文摘In order to study intelligent fault diagnosis methods based on fuzzy neural network (NN) expert system and build up intelligent fault diagnosis for a type of missile weapon system, the concrete implementation of a fuzzy NN fault diagnosis expert system is given in this paper. Based on thorough research of knowledge presentation, the intelligent fault diagnosis system is implemented with artificial intelligence for a large-scale missile weapon equipment. The method is an effective way to perform fuzzy fault diagnosis. Moreover, it provides a new way of the fault diagnosis for large-scale missile weapon equipment. | Yang Jun Feng Zhensheng Zhang Xien & Liu Pengyuan Dept. of Missile Engineering, Ordnance Engineering College, Shijiazhuang 050003, P. R. China | 2001 | Journal of Systems Engineering and Electronics2001，12，1： | 7 |
| 18 | EFFECTS OF AGRICULTURE RECLAMATION ON THE HYDROLOGIC CHARACTERISTICS IN THE SANJIANG PLAIN, CHINA显示文摘The Sanjiang Plain is the largest and most concentrated wetland region in China, the total area is about 1.088×107ha with rich marsh resources and biodiversity. Before 1949, the Sanjiang Plain was a large untravelled wild plant and waterfowl habitat, and there were some rare swans, red-crowned cranes and thousands of hydrophytes. From 1950, the local government began to reclaim the marsh in the Sanjiang Plain, built the commodity grain base of Northeast China, and developed the industry of grain processing, animal husbandry, etc. Up to now, there are 54 farms which control 3.5087×106ha agriculture field. The marsh areas are reduced by 1/2; many rare animals and plants are near extinction. The human activities and agriculture reclamation made a great change on the environment, especially made water balance change and regional climate change. So to study and protect the wetland ecosystem and marsh resource are extremely urgent. This paper focus on the hydrology change and climate change before and after marsh reclamation, including evapotranspiration, run off, soil character, micro-climate on both marsh and agriculture field, and the reason that cause seasonal drought, waterlogging and degeneration of marsh. | WANG Yi-yong, YANG Yong-xing (Changchun Institute of Geography, the Chinese Academy of Sciences,Changchun 130021,P. R. China) | 2001 | Chinese Geographical Science2001，11，2： | 6 |
| 19 | Refining constitutive relation by integration of finite element simulations and Gleeble experiments显示文摘Thermo-mechanical coupled finite element calculations were carried out to simulate the Gleeble compression of the samples of a titanium alloy(Ti60), and the results are analyzed and compared with the actual compression tests conducted on a Gleeble 3800 thermo-mechanical simulator. The changes in temperature, stress and strain distribution in the samples and the source of error on the constitutive relations from Gleeble hot compression test were analyzed in detail. Both simulations and experiments showed that the temperature distribution in the specimen is not uniform during hot compression, resulting in significant deformation inhomogeneity and non-ignorable error in the flow stress strain relation,invalidating the uniform strain assumption commonly assumed when extracting the constitutive relation from Gleeble tests. Based on the finite element simulations with iterative corrections, we propose a scheme to refine the constitutive relations from Gleeble tests. | D.J. Yu D.S. Xu H. W ang Z.B. Zhao G.Z. Wei R. Yang | 2019 | Journal of Materials Science & Technology2019，35，6： | 6 |
| 20 | Preparation and Characterization of Polymeric Microspheres Having Isotactic Poly(methacrylic acid) on Their Surfaces显示文摘A poly( tert -butyl methacrylate)(PBMA) macromonomer was synthesized by anionic polymerization with bis(2,6-di- t -butyl phenoxy) methyl aluminum [MeAl(ODBP)2] as the initiator and trimethylsilylmethacrylate(TMSMA) as the end capping agent in dry THF. Then, a poly(methacrylic acid)(PMAA) macromonomer was obtained by means of hydrolysis reaction from the PBMA macromonomer in the presence of hydrochloric acid. The structures of the PBMA macromonomer were characterized by using 1H NMR. It was found that the resulted PBMA macromonomer has highly isotactic properties and the PMAA macromonomer has an end vinyl group on per polymer chain. The monodisperse polymeric microspheres, which consisted of polystyrene cores and PMAA branches on their surfaces, were prepared by the dispersion copolymerization of styrene with the PMAA macromonomer in an ethanol/water mixed solvent. It was found that the concentration of the PMAA macromonomer would affect the microsphere formation, the morphology and its size in the copolymerization system. | CHEN Ming-qing 1** , LIU Xiao-ya 1, YANG Cheng 1 and AKASHI Mitsuru 21. School of Chemical and Material Engineering, Southern Yangtze University, Wuxi 214036, P. R. China 2. Department of Applied Chemistry and Chemical Engineering, Faculty of Engi | 2002 | Chemical Research in Chinese Universities2002，18，1： | 6 |
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