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1A community-derived classification for extant lycophytes and ferns显示文摘发展史长通知了蕨类植物分类。当我们推断进化的树的能力改善了,针对认出生来的组的分类变得逐渐地预兆、稳定。这里,我们为 lycophytes 和蕨纲植物提供一个现代、全面分类,在下面,利用一条基于社区的途径类水平。我们 monophyly 用作主要标准让 taxa,而且目的识别保存两个广泛地被接受的存在 taxa 和界限并且与我们蕨类植物发展史的理解一致。总共,这个分类对待一在 337 个类, 51 个家庭, 14 目,和二个班估计了 11  916 种类。这个分类没在 lycophyte 和蕨纲植物上作为最后的词被打算分类,而是当前的假设的概括陈述,源于最好的可得到的数据并且在问题由熟悉植物的那些大多数塑造了。我们希望它将在蕨类植物上为最近的文学的那些想要的参考用作一个资源发展史和分类,为指导未来调查的一个框架,和推进讲话的刺激。Eric Schuettpelz Harald Schneider Alan R. Smith Peter Hovenkamp Jefferson Prado Germinal Rouhan Alexandre Salino Michael Sundue Thafs Elias Almeida Barbara Parris Emily B. Sessa Ashley R. Field Andre Luis de Gasper Carl J. Rothfels Michael D. Windham Marcus Lehnert Benjamin Dauphin Atsushi Ebihara Samuli Lehtonen Pedro Bond Schwartsburd Jordan Metzgar Li-Bing Zhang Li-Yaung Kuo Patrick J. Brownsey Masahiro Kato Marcelo Daniel Arana Francine C. Assis Michael S. Barker David S. Barrington Ho-Ming Chang Yi-Han Chang Yi-Shan Chao Cheng-Wei Chen De-Kui Chen Wen-Liang Chiou Vinicius Antonio de Oliveira Dittrich Yi-Fan Duan Jean-Yves Dubuisson Donald R. Farrar Susan Fawcett Jose Maria Gabriel y Galan Luiz Armando de Araujo Goes-Neto Jason R. Grant Amanda L. Grusz Christopher Haufler Warren Hauk Hai He Sabine Hennequin Regina Yoshie Hirai Layne Huiet Michael Kessler Petra Korall Paulo H. Labiak Anders Larsson Blanca Leen Chun-Xiang Li Fay-Wei Li Melanie Link-Perez Hong-Mei Liu Ngan Thi Lu Esteban I. Meza-Torres Xin-Yuan Miao Robbin Moran Claudine Massi Mynssens Nathalie Nagalingum Benjamin Ollgaard Alison M. Paul Jovani B. de S. Pereira Leon R. Perrie Monica Ponce Tom A. Ranker Christian Schulz Wataru Shinohara Alexander Shmakov Erin M. Sigel Filipe Soares de Souza Lana da Silva Sylvestre Weston Testo Luz Amparo Triana-Moreno Chie Tsutsumi Hanna Tuomisto IvAn A. Valdespino Alejandra Vasco Raquel Stauffer Viveros Alan Weakley Ran Wei Stina Weststrand Paul G. Wolf George Yatskievych Xiao-Gang Xu Yue-Hong Yan Liang Zhang Xian-Chun Zhang Xin-Mao Zhou 2016Journal of Systematics and Evolution2016,54,6:44
2Late 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 2003Chinese Science Bulletin2003,48,11:20
3Role of the IL-33-ST2 axis in sepsis显示文摘Sepsis remains a major clinical problem with high morbidity and mortality. As new inflammatory mediators are characterized, it is important to understand their roles in sepsis. Interleukin 33(IL-33) is a recently described member of the IL-1 family that is widely expressed in cells of barrier tissues. Upon tissue damage, IL-33 is released as an alarmin and activates various types of cells of both the innate and adaptive immune system through binding to the ST2/IL-1 receptor accessory protein complex. IL-33 has apparent pleiotropic functions in many disease models, with its actions strongly shaped by the local microenvironment. Recent studies have established a role for the IL-33-ST2 axis in the initiation and perpetuation of inflammation during endotoxemia, but its roles in sepsis appear to be organism and model dependent. In this review, we focus on the recent advances in understanding the role of the IL-33/ST2 axis in sepsis.Hui Xu Heth R. Turnquist Rosemary Hoffman Timothy R. Billiar 2017Military Medical Research2017,4,1:14
4A 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 1996Journal of Thermal Science1996,5,4:14
5The Homo sapiens Cave hominin site of Mulan Mountain,Jiangzhou District,Chongzuo,Guangxi with emphasis on its age显示文摘One of the most hotly debated and frontal issues in paleoanthropology focuses on the origins of modern humans. Recently, an incomplete hominin mandible with a distinctly weaker mental protuberance than modern human and a great variety of coexisting fossil mammals were unearthed from the Homo sapiens Cave of Mulan Mountain, Chongzuo, Guangxi. The mammalian fauna from the Homo sapiens Cave characterized by the combination of Elephas kiangnanensis, first occurring Elephas maixmus, and Megatapirus augustus, and strikingly different from the Early Pleistocene Gigantopithecus fauna and the Middle Pleistocene Ailuropoda-Stogodon fauna of South China could be regarded as an early representive of the typical Asian elephant fauna. Faunal analysis, biostratigraphic correlation, and, most importantly, U-series dating all consistently support an estimate of ca. 110 ka for the age of the fossil Homo sapiens and coexisting mammalian fauna, that is, the early Late Pleistocene. The fauna is mainly made up of tropical-subtropical elements, but grassland elements have a much greater variety than forest elements, which probably indicates a drier climate at that time. This discovery of early Homo sapiens at the Mulan Mountain will play a significant role in the study of the origin and its environmental background of modern humans.JIN ChangZhu PAN WenShi ZHANG YingQi CAI YanJun XU QinQi TANG ZhiLu WANG Wei WANG Yuan LIU JinYi QIN DaGong R. Lawrence Edwards CHENG Hai 2009Chinese Science Bulletin2009,54,21:13
6Polyphenol Oxidase, Peroxidase and PhenylalanineAmmonium Lyase Induced in Postharvest Peach Fruitsby Inoculation with Pichia membranefaciensor Rhizopus stolonifer显示文摘Rhizopus rot of peach fruits could be significantly suppressed by Pichia membranefaciens.Polyphenol oxidase (PPO), peroxidase (POD) and phenylalanine ammonium-lyase (PAL) activities inducedby inoculation with P. membranefaciens or R. stolonifer were studied in postharvest peach fruits. The activ-ities of PPO and PAL in peaches increased significantly after being inoculated with P. membranefaciens + R.stolonifer by 24 h, the activities maintained at a high level throughout the experiment. Under the condition ofinfected with R. stolonifer alone, activity of PPO and PAL could also increased, but the levels were lowerthan those treated with P. membranefaciens+ R. stolonifer. However, fruits inoculaed with P. membrane-faciens+ R. stolonifer or R. stolonifer alone did not stimulated POD activity. The results suggest that theactivation of these defense enzymes is involved in the action of P. membranefaciens against R. stolonifer.QIN Guo-zheng, TIAN Shi-ping, LIU Hai-bo and XU Yong(Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany , Chinese Academy of Sciences , Beijing 100093 , P. R. China) 2002Agricultural Sciences in China2002,1,12:13
7Sustainable Management of Planted Forests in China: Comprehensive Evaluation, Development Recommendation and Action Framework显示文摘China is one of the largest countries in the world in terms of planted forests area. Planted forests play an important role in soil and water conservation, food source, timber supply and energy security, but there are still many problems waiting for immediate resolution. Based on the current development status of planted forest in China, the paper made an comprehensive analysis for the positive impact and existing problems with regard to planted forests, and then came up with policy recommendations for promoting sustainable management of planted forests, mainly including: 1) to accelerate planted forests development and improve the quality; 2) to strengthen the protection and management, and quicken the development of planted forests; 3) to enhance the scientific planning for planted forests; 4) to reinforce the management for forests harvesting so as to promote the reasonable utilization of planted forests; 5) to perfect the management system for planted forest resources and improve the managerial capacity; 6) to complete related laws and regulations and improve the policy guarantee system; 7) to reinforce the forest tenure reform and establish a sound planted forest land transference system. Finally, the paper presented the future action framework for guiding the sustainable management of planted forests in China.HE Youjun1 LI Zhiyong1 CHEN Jie1 LIU Yong1 LIU Daoping2 WU Shengfu3 QIN Yongsheng4 XU Zhijiang51. Research Institute of Forestry Policy and Information, Chinese Academy of Forestry(CAF), Beijing 100091, P. R. China 2. Quality Management Office and Department of Afforestation and Silviculture, State Forestry Administration(SFA), Beijing 100714, P. R. China 3. Green Panel Consulting, Beijing 100714, P. R. China 4. Beijing Forestry and Parks Department of International Cooperation, Beijing Municipal Bureau of Landscape and Forestry, Beijing 100029, P. R. China 5. International Cooperation Office, Yunnan Provincial Forestry Bureau, Kunmin 650021, P. R. China 2008Chinese Forestry Science and Technology2008,7,3:12
8Understanding 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 2005Biomedical and Environmental Sciences2005,18,6:12
9Improving Drought Tolerance of Rice by Designed QTL Pyramiding显示文摘Drought is the most important factor limiting rice yields in the rainfed areas of Asia. To overcome the problem, we developed a new strategy 'designed QTL pyramiding' to more effi ciently develop drought tolerant (DT)Z.K. Li D. Dwivedi Y.M. Gao T.Q. Zheng R. Lafitte J.L. Xu D. Mackill B.Y. Fu J.Domingo Y. Sun L.H. Zhu 2007分子植物育种2007,5,2:12
10A STUDY ON LANDSCAPE MOSAIC STRUCTUREIN URBANRURAL AREA IN NORTHWESTOF CHINA WITH RS AND GIS- A Case Study of Xigu District in Lanzhou City显示文摘ABSTRACT: At the study area of Xigu District in Lanzhou City, using RS & GIS as tools we apply Diversity, Dominance, Fragmentation , Isolation and so on to study the quantitative, fractal and spatial characters of landscapes’ structures in the four sub-regions divided by the morphological features. Using the Fractal Theory to establish the fractal structure models, we analyze the complexity and stability of various landscapes’ distribution with fractal dimension value. The spatial distribution characteristics of landscape mosaic structure are also expounded. At the end of the paper we discuss the relevant problems on the main factors which control and effect on the spatial pattern of landscapes as well as on landscape optimization and management.XU Jian-hua1, LU Yan1, AI Nan-shan2, YUE Wen-ze3(1. Department of Geography, East China Normal University, Shanghai 200062, P. R. China 2. Environmental Science and Engineering School, Sichuan University, Chengdu 610064, P. R. Chin 2001Chinese Geographical Science2001,11,4:12
11LASER LIFT-OFF OF GaN THIN FILMS FROM SAPPHIRE SUBSTRATES显示文摘Gallium Nitride film was successfully separated from sapphire substrate by laser radiation. The absorption of the 248nm radiation by the GaN at the interface results in rapid thermal decomposition of the interfacial layer, yielding metallic Ga and N2 gas. The substrate can be easily removed by heating above the Ga melting point (29℃). X-ray diffraction, atomic force microscopy and Photoluminescence of CaN before and after lift-off process have been performed, which demonstrated that the separation and transfer process do not alter the structural quality of the GaN films. And further discussions on the threshold energy and crack-free strategies of laser lift-off process have also been presented.J. Xu, R. Zhang, Y.P. Wang, X.Q. Xiu, S.L. Gu, B. Shen, Y. Shi, Z.G. Liu and Y.D. Zheng (Department of Physics and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China) 2001Acta Metallurgica Sinica(English Letters)2001,14,6:10
12AN ASSESSMENT OF LAND USE CHANGES IN FUQING COUNTYOF CHINA USING REMOTE SENSING TECHNOLOGY显示文摘Fuqing County of southeast China has witnessed significant land use changes during the last decade. Re mote sensing technology using multitemporal Landsat TM images was used to characterize land use types and to monitor land use changes in the county. Two TM scenes from 1991 and 1996 were used to cover the county and a five-year time period. Digital image processing was carried out for the remotely sensed data to produce classified images. The images were further processed using GIS software to generate GIS databases so that the data could be further spatially analyzed taking the advantages of the software. Land use change areas were determined by using the change detection technique. The comparison of the two classified TM images using the above technologies reveals that during the five study years, a large area of arable lands in the county has been lost and deforestation has taken place largely because of the dramatic in crease in built-up land and orchard. The conclusive statistical information is useful to understand the processes, causes and impacts of the land use changes in the county. The major driving force to the land use changes in the county ap peared to be the rapid economic development. The decision makers of the county have to pay more attention to the land use changes for the county’s sustainable development.XU Han-qiu( Department of Environmental and Resources Engineering, Fuzhou University, Fuzhou 350002, P. R. China) 2002Chinese Geographical Science2002,12,2:9
13Study of Static Adsorption Capacity of ACF for Xenon at 201 K显示文摘The static adsorption performances of a series of active carbon fiber(ACF)for xenon at 201 K were measured with a model ASAP2010M specific surface area and aperture distribution instrument by changing the working gas of instrument from N 2 to Xenon. Compared with grain active carbon(GAC): (1) the adsorption performance of Viscose based ACF(VACF) adsorbents is better than that of GAC; (2) owing to the difference of aperture distribution, the adsorption performance of ACF with different radicales is different under the same experiment conditions though the specific surface area is similar; (3) there is no definite relationship between adsorption performance and specific surface area; (4) the VACF A2 is the superior xenon adsorbent at the experimental temperature.WANG Ya long ** , ZHANG Hai tao, WANG Xu hui, ZHANG Li xing, CHEN Li yun, XIE Jin chuan (Northwest Institute of Nuclear Technology, Xian 710024, P. R. China) 2002Chemical Research in Chinese Universities2002,18,2:9
14Geographical distribution of red and green Noctiluca scintillans显示文摘The dinoflagellate Noctiluca scintillans is one of the most important and abundant red tide organisms and it is distributed world-wide. It occurs in two forms. Red Noctiluca is heterotrophic and fills the role of one of the microzooplankton grazers in the foodweb. In contrast, green Noctiluca contains a photosynthetic symbiont Pedinomonas noctilucae (a prasinophyte), but it also feeds on other plankton when the food supply is abundant. In this review, we document the global distribution of these two forms and include the first maps of their global distribution. Red Noctiluca occurs widely in the temperate to sub-tropical coastal regions of the world. It occurs over a wide temperature range of about 10°C to 25°C and at higher salinities (generally not in estuaries). It is particularly abundant in high productivity areas such as upwelling or eutrophic areas where diatoms dominate since they are its preferred food source. Green Noctiluca is much more restricted to a temperature range of 25°C-30°C and mainly occurs in tropical waters of Southeast Asia, Bay of Bengal (east coast of India), in the eastern, western and northern Arabian Sea, the Red Sea, and recently it has become very abundant in the Gulf of Oman. Red and green Noctiluca do overlap in their distribution in the eastern, northern and western Arabian Sea with a seasonal shift from green Noctiluca in the cooler winter convective mixing, higher productivity season, to red Noctiluca in the more oligotrophic warmer summer season.P. J. HARRISON K. FURUYA P. M. GLIBERT J. Xu H. B. LIU K. YIN J. H. W. LEE D. M. ANDERSON R. GOWEN A. R. AL-AZRI A. Y. T. HO 2011Chinese Journal of Oceanology and Limnology2011,29,4:8
15Research on Relationships Between Built Environment and Criminal Behavior in Parking Areas: A Case Study on Pudong New Area, ShanghaiMAO Yuanyuan, PhD Candidate, School of Architecture & Urban Planning, Tongji University, Shanghai, P. R. China. DAI Shenzhi, Professor, School of Architecture & Urban Planning, Tongji University, Shanghai, P. R. China. DENG Tian, China Overseas Property Group Co., Ltd (Eastern China), Shanghai, P. R. China. XU Bin, Off icer, Shanghai Municipal Public Security Bureau Pudong Branch, Shanghai, P. R. China. ZHU Wei, PhD, Eindhoven University of Technology, Eindhoven, the Netherlands. DONG Hengping, Postgraduate student, School of Architecture & Urban Planning, Tongji University, Shanghai, P. R. China. 2009China City Planning Review2009,18,2:7
16Variant genotypes and haplotypes of the epidermal growth factor gene promoter are associated with a decreased risk of gastric cancer in a high-risk Chinese population显示文摘Jin, G. F. Miao, R. F. Deng, Y. M. Hu, Z. B. Zhou, Y. Tan, Y. F. Wang, J. M. Hua, Z. L. Ding, W. L. Wang, L. Chen, W. S. Shen, J. Wang, X. R. Xu, Y. C. Shen, H. B. 2007南京医科大学学报(自然科学版)2007,27,10:7
17Intuitionistic fuzzy hierarchical clustering algorithms显示文摘Intuitionistic fuzzy set (IFS) is a set of 2-tuple arguments, each of which is characterized by a membership degree and a nonmembership degree. The generalized form of IFS is interval-valued intuitionistic fuzzy set (IVIFS), whose components are intervals rather than exact numbers. IFSs and IVIFSs have been found to be very useful to describe vagueness and uncertainty. However, it seems that little attention has been focused on the clus- tering analysis of IFSs and IVIFSs. An intuitionistic fuzzy hierarchical algorithm is introduced for clustering IFSs, which is based on the traditional hierarchical clustering procedure, the intuitionistic fuzzy aggregation operator, and the basic distance measures between IFSs: the Hamming distance, normalized Hamming, weighted Hamming, the Euclidean distance, the normalized Euclidean distance, and the weighted Euclidean distance. Subsequently, the algorithm is extended for clustering IVIFSs. Finally the algorithm and its extended form are applied to the classifications of building materials and enterprises respectively.Xu Zeshui1,2 1. Coll. of Economics and Management, Southeast Univ., Nanjing 210096, P. R. China 2. Inst. of Sciences, PLA Univ. of Science and Technology, Nanjing 210007, P. R. China 2009Journal of Systems Engineering and Electronics2009,20,1:6
18Static Scene Illumination Estimation from Videos with Applications显示文摘我们在场自动地从一个录像恢复景色几何学和照明的一个系统,为各种各样的应用提供一个基础。基于的照明评价方法要求的以前的图象在一个数据库形式的用户相互作用或外部信息。我们为起始的景色重建采用 structure-from-motion 和多看法立体声,然后估计环境球形的泛音代表的地图(同样这些比的更好表现另外的底) 。我们也表明编辑利用恢复几何学和照明的应用的几个录像,包括反对插入(例如,为扩充现实) ,阴影察觉,和录像 relighting。Bin Liu Nun Xu Ralph R. Martin 2017Journal of Computer Science & Technology2017,32,3:6
19Refining 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 2019Journal of Materials Science & Technology2019,35,6:6
20UV-induced Self-initiated Graft Polymerization of Acrylamide onto Poly(ether ether ketone)显示文摘Photo-grafting of hydrophilic monomer was used to enhance the hydrophilicity of poly(ether ether ketone) (PEEK) with the aim of extending its applications to biological fields. PEEK sheets were surface modified by grafting of acrylamide(AAm) with ultraviolet(UV) irradiation in the presence or absence of benzophenone(BP). The effects of BP, irradiation time and monomer concentration on the surface wettability of PEEK were investigated. Characteriza tion of modified PEEK using scanning electron microscopy(SEM), energy-disperse spectrometer(EDS) and water contact angle measurements shows that AAm was successfully grafted on PEEK surface both in presence and absence of BP. With the increase in irradiation time and monomer concentration, contact angles decrease to as low as 30°, demonstrating a significant improvement of surface hydrophilicity. In agreement with the decrease in contact angle, under identical conditions, the nitrogen concentration increases, suggesting the increase in grafting degree of the grafting polymerization. This investigation demonstrates a self-initiation of PEEK due to its BP-like structure in the backbone of the polymer. Though the graft polymerization proceeds more readily in the presence of BP, the self-initiated graft polymerization is clearly observed.CHEN Rui-chao, SUN Hui, LI Ang and XU Guo-zhi College of Materials Science and Mechanical Engineering, National Center for Quality Supervision and Test of Plastic Products, Beijing Technology and Business University, Beijing 100048, P. R. China 2012Chemical Research in Chinese Universities2012,28,1:6
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