|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Spatial and temporal variability of daily precipitation in Haihe River basin, 1958-2007显示文摘The seasonal variability and spatial distribution of precipitation are the main cause of flood and drought events.The study of spatial distribution and temporal trend of precipitation in river basins has been paid more and more attention.However,in China,the precipita- tion data are measured by weather stations(WS)of China Meteorological Administration and hydrological rain gauges(RG)of national and local hydrology bureau.The WS data usually have long record with fewer stations,while the RG data usually have short record with more stations.The consistency and correlation of these two data sets have not been well understood.In this paper,the precipitation data from 30 weather stations for 1958-2007 and 248 rain gauges for 1995-2004 in the Haihe River basin are examined and compared using linear regression,5-year moving average,Mann-Kendall trend analysis,Kolmogorov-Smirnov test, Z test and F test methods.The results show that the annual precipitation from both WS and RG records are normally distributed with minor difference in the mean value and variance.It is statistically feasible to extend the precipitation of RG by WS data sets.Using the extended precipitation data,the detailed spatial distribution of the annual and seasonal precipitation amounts as well as their temporal trends are calculated and mapped.The various distribution maps produced in the study show that for the whole basin the precipitation of 1958-2007 has been decreasing except for spring season.The decline trend is significant in summer,and this trend is stronger after the 1980s.The annual and seasonal precipitation amounts and changing trends are different in different regions and seasons.The precipitation is decreasing from south to north,from coastal zone to inland area. | CHU Jianting XIA Jun XU Chongyu LI Lu WANG Zhonggen | 2010 | Journal of Geographical Sciences2010，20，2： | 17 |
| 2 | Environmental changes reflected by n-alkanes of lake core in Nam Co on the Tibetan Plateau since 8.4 kaB.P.显示文摘The n-alkanes are extracted from NMLC-1 core that was drilled in the Nam Co, central Tibet. They are measured by using Gas Chromatography and Mass Spectrometry (GC/MS) for componential and quantitative analyses. According to the constructed depth-age model, the component and concentration of n-alkanes, together with total organic carbon (TOC), total nitrogen (TN) and carbonate are used to elu- cidate palaeoenvironmental changes of Nam Co during the past 8.4 ka. The results indicate that Holo- cene environment performs three stages in the lake area. In the stage of 8.4―6.7 kaB.P., it was warmer while precipitation slightly increased. This stage was ended by an obvious cold/dry event. During 6.7― 5.8 kaB.P., temperature increased rapidly and reached its maximum values at about 6.0 kaB.P. The environments were warm/wet optimum for the blooming of terrestrial plants and submerged aquatic plants. After that, temperature decreased continuously and showed the lowest values at about 3.0 kaB.P. From 2.9 kaB.P. to the present, temperature rose again but alternated with cold and warm. The lake area tended to be dry after 1.4 kaB.P. During 600―400 aB.P., the environmental feature was the reflection of 'Little Ice Age'. | LIN Xiao ZHU LiPing WANG Yong WANG JunBo XIE ManPing JU JianTing Roland MAUSBACHER Antje SCHWALB | 2008 | Chinese Science Bulletin2008，53，19： | 14 |
| 3 | Climatic and lake environmental changes in the Serling Co region of Tibet over a variety of timescales显示文摘The Serling Co region is located at the transitional zone of the interaction between the Indian monsoon and the westerlies over the Tibetan Plateau. The Serling Co lake covers a water area of2,389 km2(June 2017) in a 45,530 km2drainage basin. Under the dramatic hydro-meteorological changes on the Tibetan Plateau in recent decades, and complex hydrological compositions of rivers and lakes in the basin, the lake area expanded by 43%, from1,667 km2in 1976, to 2,389 km2in 2017 (1)In 2014 it surpassed Nam Co as the largest lake on the Tibetan Plateau [2], and exerts significant effect on regional environmental conditions. | Liping Zhu Junbo Wang Jianting Ju Ning Ma Yinsheng Zhang Chong Liu Boping Han Linshan Liu Mingda Wang Qingfeng Ma | 2019 | Science Bulletin2019，64，7： | 13 |
| 4 | Theoretical mean-variance relationship of IP network traffic based on ON/OFF model显示文摘Mean-variance relationship (MVR),nowadays agreed in power law form,is an important function. It is currently used by traffic matrix estimation as a basic statistical assumption. Because all the existing papers obtain MVR only through empirical ways,they cannot provide theoretical support to power law MVR or the definition of its power exponent. Furthermore,because of the lack of theoretical model,all traffic matrix estimation methods based on MVR have not been theoretically supported yet. By observing both our laboratory and campus network for more than one year,we find that such an empirical MVR is not sufficient to describe actual network traffic. In this paper,we derive a theoretical MVR from ON/OFF model. Then we prove that current empirical power law MVR is generally reasonable by the fact that it is an approximate form of theoretical MVR under specific precondition,which can theoretically support those traffic matrix estimation algorithms of using MVR. Through verifying our MVR by actual observation and public DECPKT traces,we verify that our theoretical MVR is valid and more capable of describing actual network traffic than power law MVR. | JIN Yi ZHOU Gang JIANG DongChen YUAN Shuai WANG LiLi CAO JianTing | 2009 | Science in China(Series F)2009，52，4： | 10 |
| 5 | The spatial distribution and sedimentary processes of organic matter in surface sediments of Nam Co,Central Tibetan Plateau显示文摘In this study,67 surface sediment samples collected from Nam Co in central Tibet were analyzed for total carbon,total organic carbon and total nitrogen,and 51 of these samples were also analyzed for n-alkanes.The origin and spatial distribution of organic matter were then investigated using these proxies,and the control factors responsible for the spatial distribution patterns and paleolimnological significance were discussed.The results indicated that the origin of organic matter in surface sediment of Nam Co is consistent with the sources of n-alkanes,which were primarily submerged plants,followed by terrestrial plants,and then aquatic algae and bacteria.The organic matter in surface sediments of the lake showed typical spatial variability.Because of the great influence of underwater topography,river inputs and water quality,the spatial distribution of organic matter is enriched from the source to the deposit center.This spatial variability of organic matter in the lake indicates that the sediments in different areas have different sensitivities to environmental changes,which is important to reconstruction of paleoenvironments and paleoclimate using lake sediment cores. | WANG Yong ZHU LiPing WANG JunBo JU JianTing LIN Xiao | 2012 | Chinese Science Bulletin2012，57，36： | 9 |
| 6 | Composition, spatial distribution, and environmental significance of water ions in Pumayum Co catchment, southern Tibet显示文摘主要阳离子(Mg2+ , Ca2+ , Na+ ,和 K+) 和阴离子的化学(HCO3 ? , SO4 2 ? ,并且 Cl ?) 在普麦乌姆湖的水里,公司和它的流入河被学习,在各种各样的流入河和湖之中揭示明显的离子的差别。湖水的化学类型是 Mg2+-Ca2+-HCO3 ?-SO4 2+ ,但是主要流入河的主要离子是 Ca2+-Mg2+-HCO3 ? 。在 Jiaqu 河的湖入口,主要流入河,有在深度以内的水化学的重要变化不到 2 m。然而,它在湖的另外的区域是几乎同类的。与水化学和湖水的氧同位素的分发的证据,因此,一个结论能被构画出那条 Jiaqu 河在沉没三角洲上在水的 hydrochemistry 上有不同效果,而这为另外的河不是事实。吉布斯阴谋表明负责控制湖水的化学作文的主导的机制是在排水区域捱过的岩石。离子比率和第三的阴谋进一步探索了控制集水的水化学的主要过程,即,捱过的碳酸盐,捱过的黄铁矿,并且硅酸盐捱过。在河水和湖水之间的不同 hydrochemistry 特征可以源于 CaCO3 降水。调查结果将在湖在 paleolimnological 研究有益于碳酸盐的环境意义的解释。 | ZHU Liping JU Jianting WANG Yong XIE Manping WANG Junbo PENG Ping ZHEN Xiaolin LIN Xiao | 2010 | Journal of Geographical Sciences2010，20，1： | 9 |
| 7 | Multi-microgrid Energy Management Systems: Architecture, Communication, and Scheduling Strategies显示文摘The increasing penetration of various distributed and renewable energy resources at the consumption premises,along with the advanced metering,control and communication technologies,promotes a transition on the structure of traditional distribution systems towards cyber-physical multi-microgrids(MMGs).The networked MMG system is an interconnected cluster of distributed generators,energy storage as well as controllable loads in a distribution system.And its operation complexity can be decomposed to decrease the burdens of communi-cation and control with a decentralized framework.Consequently,the multi-microgrid energy management system(MIVIGEIV1S)plays a significant role in improving energy efficiency,power quality and reliability of distribution systems,especially in enhancing system resiliency during contingencies.A comprehensive overview on typical functionalities and architectures of MMGEMS is illustrated.Then,the emerging communication technologies for information monitoring and interaction among MMG clusters are surveyed.Furthermore,various energy scheduling and control strategies of MMGs for interactive energy trading,multi-energy management,and resilient operations are thoroughly analyzed and investigated.Lastly,some challenges with great importance in the future research are presented. | Bin Zhou Jianting Zou Chi Yung Chung Huaizhi Wang Nian Liu Nikolai Voropai Daosen Xu | 2021 | Journal of Modern Power Systems and Clean Energy2021，9，3： | 8 |
| 8 | Pollen-inferred Holocene vegetation and climate histories in Taro Co,southwestern Tibetan Plateau显示文摘A 310-cm-long sediment core,covering the last10,200 years,was collected from Taro Co on the southwestern Tibetan Plateau and analyzed for pollen,grain size and total inorganic carbon content.The pollen data showed that vegetation changed from alpine steppe to alpine meadow during 10,200–8,900 cal a BP,to alpine steppe dominated by Artemisia during 8,900–7,400 cal a BP,to alpine meadow during 7,400–3,300 cal a BP and to alpine steppe after 3,300 cal a BP.Correspondingly,the pollen,grain size and total inorganic carbon content results revealed climatic change in this area over four stages.The initial stage was from 10,200 to 8,900 cal a BP,during which the climate changed from cold-dry to warm-humid.The second stage(8,900–7,400 cal a BP)was characterized by a warm and dry climate.However,at approximately7,400 cal a BP,the climate began to become cold and humid,which continued until 3,300 cal a BP.The last stage,from 3,300 cal a BP to present,was characterized as cold and increasingly arid.Climatic events of the early and mid-late Holocene showed that the area was significantly affected by the westerlies.However,the mid-Holocene climate in Taro Co was controlled by the Indian monsoon.The mid-late Holocene depositional environment record of Taro Co was very important to further elaborate the degree of influence by the westerlies or Indian monsoon. | Qingfeng Ma Liping Zhu Xinmiao L Yun Guo Jianting Ju Junbo Wang Yong Wang Lingyu Tang | 2014 | Chinese Science Bulletin2014，59，31： | 7 |
| 9 | Hydrodynamic process of Tibetan Plateau lake revealed by grain size:Case study of Pumayum Co显示文摘Under the background of global warming,some lakes on the Tibetan Plateau(TP) are potentially sensitive to temperature change.With a case study of Pumayum Co,where glacier meltwater is important to supply(we call this a glacier-fed lake hereafter),we analyze the sensitivity of lake sediment grain size to temperature change.This is done by resolving the modern hydrodynamic process,coupled with comparison of paleoclimatic proxies.According to the spatial distributions of parameters,percentage of grain size and the grain size frequency distribution curve,hydrodynamic processes are analyzed.Five clastic sedimentation types are thereby discriminated.In the open lake area,suspended load transport is the main transport agent.Grain Size Trend Analysis(GSTA),a sediment dynamics model,reveals a trend toward eastward transport.This indicates that the largest and glacier-fed river,the Jiaqu River,influences the entire lake(not just the subsurface alluvial fan),and that lake sediment grain size may serve as a temperature indicator.Time series comparison between grain size of a short core from the central lake and meteorological data confirms this temperature indication,which in turn shows reliability of the method discriminating the hydrodynamic process.This case study will improve the ability of paleoclimatic reconstruction using lake sediment in glacier-fed lakes on the Tibetan Plateau. | JU JianTing ZHU LiPing FENG JinLiang WANG JunBo WANG Yong XIE ManPing PENG Ping ZHEN XiaoLin LÜXinMiao | 2012 | Chinese Science Bulletin2012，57，19： | 7 |
| 10 | Prevalence of Metabolic Syndrome and Risk Factors Among Chinese Adults:Results from a Population-Based Study—Beijing,China,2017–2018显示文摘Summary What is already known about this topic?Metabolic syndrome(MetS)is one of the most easily available health indicative markers for cardiovascular diseases,and it has become a major public health problem worldwide due to increasing urbanization and aging populations.The prevalence of MetS increased dramatically in China,however,there are no records of MetS defined by the 2017 Chinese Diabetes Society for Beijing by far.What is added by this report?In this study,the data of 24,412 participants aged 18–74 years from a large population-based study in Beijing was collected.The overall prevalence of MetS among Beijing residents was 24.5%.The prevalence was 35.2%in males and 15.4%in females.What are the implications for public health practice?Effective public health strategies should target males,people with older age,lower education,higher body mass index,smokers,those who drink alcohol,those who are unemployed or retired,and those who live in rural areas on MetS prevention and control. | Jufen Liu Qingping Liu Zhiwen Li Jing Du Chao Wang Yanlin Gao Zaihua Wei Jing Wang Yunping Shi Jianting Su Yang Liu Ping Wang Chunyan Xie Gang Li Bing Shao Le Zhang | 2022 | China CDC weekly2022，4，29： | 4 |
| 11 | Wear properties of NiAl based materials | Jianting Guo Zhensheng Wang Liyuan Sheng Lanzhang Zhou Chao Yuan Zhigang Chen Li Song | 2012 | Progress in Natural Science:Materials International2012，22，5： | 3 |
| 12 | Targeting fatty acid synthase sensitizes human nasopharyngeal carcinoma cells to radiationvia downregulating frizzled class receptor 10显示文摘Objective:Our aim was to test the hypothesis that fatty acid synthase(FASN)expression contributes to radioresistance of nasopharyngeal carcinoma(NPC)cells and that inhibiting FASN enhances radiosensitivity.Methods:Targeting FASN using epigallocatechin gallate(EGCG)or RNA interference in NPC cell lines that overexpress endogenous FASN was performed to determine their effects on cellular response to radiationin vitro using MTT and colony formation assays,andin vivo using xenograft animal models.Western blot,immunohistochemistry,real-time PCR arrays,and real-time RT-PCR were used to determine the relationship between FASN and frizzled class receptor 10(FZD10)expression.FZD10 knockdown and overexpression were used to determine its role in mediating FASN function in cellular response to radiation.Immunohistochemical staining was used to determine FASN and FZD10 expressions in human NPC tissues,followed by analysis of their association with the overall survival of patients.Results:FASN knockdown or inhibition significantly enhanced radiosensitivity of NPC cells,bothin vitro andin vivo.There was a positive association between FASN and FZD10 expression in NPC cell lines grown as monolayers or xenografts,as well as human tissues.FASN knockdown reduced FZD10 expression,and rescue of FZD10 expression abolished FASN knockdown-induced enhancement of radiosensitivity.FASN and FZD10 were both negatively associated with overall survival of NPC patients.Conclusions:FASN contributes to radioresistance,possiblyvia FZD10 in NPC cells.Both FZD10 and FASN expressions were associated with poor outcomes of NPC patients.EGCG may sensitize radioresistance by inhibiting FASN and may possibly be developed as a radiosensitizer for better treatment of NPCs. | Jiongyu Chen Fan Zhang Xiaosha Ren Yahui Wang Wenhe Huang Jianting Zhang Yukun Cui | 2020 | Cancer Biology & Medicine2020，17，3： | 3 |
| 13 | Fabrication of ZnO films by radio frequency magnetron sputtering and annealing显示文摘ZnO thin films were deposited on Si(l11) substrates through a radio frequency (rf) magnetron sputtering system.Then the samples were annealed at different temperatures in air ambience and ammonia ambience respectively. The struc-ture and composition of the ZnO films were studied by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy(XPS). The morphology of the samples was studied by scanning electron microscopy (SEM). Measured results show thatZnO films with hexagonal wurtzite structure were grown on Si(111) substrates when annealed in the two ambiences. Thevolatilization process of ZnO in the ammonia ambience at high temperature was discussed and the mechanism of the reac-tion was analyzed. | GAO Haiyong ZHUANG Huizhao XUE Chengshan WANG Shuyun DONG Zhihua HE Jianting | 2005 | Rare Metals2005，24，3： | 3 |
| 14 | An artificial chromosome for data storage显示文摘DNA digital storage provides an alternative for information storage with high density and long-term stability.Here,we report the de novo design and synthesis of an artificial chromosome that encodes two pictures and a video clip.The encoding paradigm utilizing the superposition of sparsified error correction codewords and pseudo-random sequences tolerates base insertions/deletions and is well suited to error-prone nanopore sequencing for data retrieval.The entire 254 kb sequence was 95.27%occupied by encoded data.The Transformation-Associated Recombination method was used in the construction of this chromosome from DNA fragments and necessary autonomous replication sequences.The stability was demonstrated by transmitting the data-carrying chromosome to the 100 th generation.This study demonstrates a data storage method using encoded artificial chromosomes via in vivo assembly for write-once and stable replication for multiple retrievals,similar to a compact disc,with potential in economically massive data distribution. | Weigang Chen Mingzhe Han Jianting Zhou Qi Ge Panpan Wang Xinchen Zhang Siyu Zhu Lifu Song Yingjin Yuan | 2021 | National Science Review2021，8，5： | 3 |
| 15 | Genetic analysis of selected Sargassum fusiforme (Harvey) Setchell (Sargassaceae, Phaeophyta) strains with RAPD and ISSR markers显示文摘Since the 1980s,Sargassum fusiforme has been cultivated in Zhejiang,South China,and nowadays it becomes one of the important commercial seaweeds in China.With traditions of eating habits in the East Asian countries,this brown alga is used as food,because it contained functional oligo/polysaccharides and chemical components,and was regarded playing roles in antioxidant activities and regulating immunology.Through over 15 years’selection,breeding and cultivation,we obtained three strains with good traits and testified their characters during the production,which included the cultivars with high yield and other two good characters,either all the selected strains were applied in the Sargassum production.To avoid confusion during the selection and nursery,it was preferred to establish one fingerprint for distinguishing the Sargassum cultivars from different strains.Random amplified polymorphic DNA(RAPD)and inter-simple sequence repeat(ISSR)methods were adopted to analyze the genetic diversities of the selected S.fusiforme strains.With that,one fingerprint with RAPD markers was constructed,and one sequence characterized amplifi ed region(SCAR)marker to S.fusiforme was obtained.It is indicated that the applied fingerprint could be valid in S.fusiforme genetic and germplasm justification,and will be positive to molecular marker assistance in its selection and cultivation. | YAO Jianting SHUAI Li LI Shengyao XU Caolu WANG Xiuliang | 2019 | Journal of Oceanology and Limnology2019，37，3： | 3 |
| 16 | High Temperature Creep and Fracture Behavior of a Directionally Solidified Ni-base Superalloy显示文摘DZ17G 的张力的蠕升破裂性质,一个方向联盟者团结了超级合金,在 830-900 度 C 被调查。所有蠕变曲线展出的结果表演可以忽略主要 creep,几乎相对别稳定 -- 说 creep 和主导的第三级的 creep 舞台。为 creep (540 kJ/mol ) 的更高明显的活化能建议 creep 被弯过程的 Orowan 控制。tertiary 的时间爬的发作的破裂时间的大比率是微观结构变化的后果,即,鲸鱼群妈“粒子面向的变粗平行到应用压力轴。creep 破裂数据跟随 Monkman- 资助关系。根据 metallographic 考试建议的 transgranular 破裂机制是与微观结构在断绝开始的creep 裂缝的连接(例如演员组,孔,和碳化物/矩阵连接)并且另外在标本表面,沿着鲸鱼群妈/鲸鱼群妈宣传“的接口对快克的应用压力轴,和这进程垂直繁殖能被 Tien 模型描述。(编辑作者摘要) 31 个裁判员。 | Yuan, Chao Guo, Jianting Wang, Shuhe Yang, Hongcai | 1998 | Journal of Materials Science & Technology1998，14，3： | 3 |
| 17 | Fabrication and photoluminescence of GaN nanowires prepared by ammoniating GaeO3/BN films on Si substrate显示文摘GaN nanowires were successfully pre-pared on Si(111) substrate through ammoniating Ga2O3/BN films deposited by radio frequency mag-netron sputtering system. The synthesized nanowires were confirmed as hexagonal wurtzite GaN by X-ray diffraction, selected-area electron diffraction and Fourier transform infrared spectra. Scanning electron microscopy and transmission electron microscopy revealed that the grown GaN nanowires have a smooth and clean surface with diameters ranging from 40 to 160 nm and lengths typically up to several tens of micrometers. The representative photolumi-nescence spectrum at room temperature exhibited a strong UV light emission band centered at 363 nm and a relative weak purple light emission peak at 422 nm. The growth mechanism is discussed briefly. | XUE Chengshan WU Yuxin ZHUANG Huizhao TIAN Deheng LIU Yi'an HE Jianting AI Yujie SUN Lili WANG Fuxue | 2006 | Chinese Science Bulletin2006，51，14： | 2 |
| 18 | Inertial force balance and ADAMS simulation of the oscillating sieve and return pan of a rice combine harvester显示文摘To reduce the inertial force of the oscillating sieve and return pan of a rice combine harvester,partial equilibrium was adopted.Firstly,based on the kinematic analysis of a slider-crank mechanism,the appropriate mass of counterweight intervals was achieved.Then,an ADAMS dynamic simulation was used to determine the optimum balance mass of the oscillating sieve and return pan individually.Considering the relative motion between the return pan and the oscillating sieve,the overall inertial force of the two parts would be reduced.The simulation results indicated that the optimum counterweight of the oscillating sieve was 15.5 kg based on an analysis of the movement tracks of the mass center and overall inertial force.The results also showed that the overall balance of inertial force not only reduced the counterweight but also decreased the overall inertial force of the oscillating sieve and return pan.Finally,a search for the most suitable crank initial angle of the return pan to reduce the overall inertial force and optimize the overall balance revealed three groups of initial angles:φ=0°,φ=45°,andφ=90°.The results indicated that arranging the initial angle of the crank of the oscillating sieve and return pan in the same position(φ=90°)was the most favorable for reducing the overall inertial force.In this situation,the optimum counterweight of the oscillating sieve was only 14.0 kg.The results can provide references for the design of the overall balance of the inertial force in the cleaning components of a combine harvester. | Chuncai Wei Lizhang Xu Jianting Wang Yaoming Li | 2018 | International Journal of Agricultural and Biological Engineering2018，11，1： | 2 |
| 19 | MICROSTRUCTURE AND MECHANICAL PROPERTIES OF Fe-Ni-Co-BASE SUPERALLOY AFTER LONGTERM AGING AT 650℃显示文摘The microstructure and mechanical properties of a Ni-Fe-Co base superalloy with lowthermal expansion coefficient after aging at 650℃ for 200,500,1000 and 2000 h have beeninvestigated.It was found that they are stable at 650℃.This alloy is believed to.fill the re-quirements for long time service to aircraft engine. | WANG Shuhe GUO Jianting LAI Wanhui GE Yunlong TAN Minghui LI Hui Institute of Metal Research,Academia Sinica,Shenyang,China | 1991 | Acta Metallurgica Sinica(English Letters)1991，4，3： | 2 |
| 20 | Status of genetic studies and breeding of Saccharina japonica in China显示文摘Saccharina japonica is one of the most important economic brown seaweeds.It is intensively cultivated on large scales in a number of Asian countries.The current annual,global production is about 8 million tons valued as about 4 million US dollars.Considerable efforts have been made to S.japonica in China since the 1950s on its cultivation.To further advance the cultivation of this species,detailed research of genetics and breeding studies are required.Recently,with the advancement of sequencing techniques,the genomics and comparative transcriptomics data were yielded,and quantitative trait locus(QTL)mapping has been conducted,along with genetic linkage maps constructed to this species.New strains have been bred and selected,with better characteristics,e.g.higher seawater temperature resistances and higher yields.In this review,we present the current status of genetic and breeding studies that have been performed to S.japonica in China,and provide guidelines for future developments in the areas of genetic selection and breeding for this species. | WANG Xiuliang YAO Jianting ZHANG Jie DUAN Delin | 2020 | Journal of Oceanology and Limnology2020，38，4： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员