|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 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 | China's wetland change (1990-2000) determined by remote sensing显示文摘Two wetland maps for the entire China have been produced based on Landsat data acquired around 1990 and 2000. Wetlands in China have been divided into 3 broad categories with 15 sub-categories except rice fields. In 1990, the total wetland area in China was 355208 km2 whereas in 2000 it dropped to 304849 km2 with a net loss of 50360 km2. During an approximate 10-year period, inland wetland reduced from 318326 to 257922 km2, coastal wetland dropped from 14335 to 12015 km2, while artificial wetland increased from 22546 to 34911 km2. The greatest natural wetland loss occurred in Heilongjiang, Inner Mon- golia, and Jilin with a total loss of over 57000 km2 of wetland. In western China, over 13000 km2 of wetlands were newly formed in Xinjiang, Tibet, and Qinghai. About 12000 km2 of artificial wetlands were also added for fish farm and reservoir constructions. The newly formed wetlands in western China were caused primarily by climate warming over that region whereas the newly created artificial wetlands were caused by economic developments. China’s wetland loss is caused mainly by human activities. | Peng Gong ZhenGuo Niu Xiao Cheng KuiYi Zhao DeMin Zhou JianHong Guo Lu Liang XiaoFeng Wang DanDan Li HuaBing Huang et al. | 2010 | Science China Earth Sciences2010，53，7： | 28 |
| 3 | Resilience-based retrofitting of existing urban RC-frame buildings using seismic isolation显示文摘The improvement of the seismic resilience of existing reinforced-concrete(RC) frame buildings, which is essential for the seismic resilience of a city, has become a critical issue. Although seismic isolation is an effective method for improving the resilient performance of such buildings, target-oriented quantitative improvements of the resilient performance of these buildings have been reported rarely. To address this gap, the seismic resilience of two existing RC frame buildings located in a high seismic intensity region of China were assessed based on the Chinese Standard for Seismic Resilience Assessment of Buildings. The critical engineering demand parameters(EDPs) affecting the seismic resilience of such buildings were identified. Subsequently, the seismic resilience of buildings retrofitted with different isolation schemes(i.e., yield ratios) were evaluated and compared, with emphasis on the relationships among yield ratios, EDPs, and levels of seismic resilience. Accordingly, to achieve the highest level of seismic resilience with respect to the Chinese standard, a yield ratio of 3% was recommended and successfully applied to the target-oriented design for the seismic-resilience improvement of an existing RC frame building. The research outcome can provide an important reference for the resilience-based retrofitting of existing RC frame buildings using seismic isolation in urban cities. | Yang Cantian Xie Linlin Li Aiqun Zeng Demin Jia Junbo Chen Xi Chen Min | 2020 | Earthquake Engineering and Engineering Vibration2020，19，4： | 7 |
| 4 | Quantitative Simulation on Soil Moisture Contents of Two Typical Vegetation Communities in Sanjiang Plain,China显示文摘Different types of vegetation occupy different geomorphology and water gradient environments in the San-jiang Plain,indicating that the soil moisture dynamics and water balance patterns of the different vegetation communi-ties might differ from each other.In this paper,a lowland system,perpendicular to the Nongjiang River in the Honghe National Nature Reserve(HNNR),was selected as the study area.The area was occupied by the non-wetland plant forest and the typical wetland plant meadow.The Microsoft Windows-based finite element analysis software package for simulating water,heat,and solute transport in variably saturated porous media(HYDRUS),which can quantita-tively simulate water,heat,and/or solute movement in variably-saturated porous media,was used to simulate soil moisture dynamics in the root zone(20-40 cm) of those two plant communities during the growing season in 2005.The simulation results for soil moisture were in a good agreement with measured data,with the coefficient of determi-nation(R2) of 0.44-0.69 and root mean square error(RMSE) ranging between 0.0291 cm3/cm3 and 0.0457 cm3/cm3,and index of agreement(d) being from 0.612 to 0.968.During the study period,the volumetric soil moisture content of meadow increased with the depth and its coefficient of variation decreased with the depth(from 20 cm to 40 cm),while under the forest the soil moisture content at different depths varied irregularly.The calculated result of water budget showed that the water budget deficit of the meadow was higher than that of the forest,suggesting that the meadow is more likely to suffer from water stress than the forest.The quantitative simulation by HYDRUS in this study did not take surface runoff and plant growth processes into account.Improved root water uptake and surface runoff models will be needed for higher accuracy in further researches. | LI Shanghua ZHOU Demin LUAN Zhaoqing PAN Yun JIAO Cuicui | 2011 | Chinese Geographical Science2011，21，6： | 7 |
| 5 | Structure of different types of coal metamorphism by HTEM显示文摘In order to discuss the effect of tectonic stress on the structural evolution of coal, given the importance attached to High-resolution Transmission Electron Microscopy (HTEM), we investigated several aspects of material structures of high-rank Carboniferous period coal, located in the northern foreland basin of the Dabie orogenic belt in eastern China. High powered crystal lattice images of Bright Fields (BF) and Selected Area Diffraction patterns (SAD) of different types of metamorphism in coal were obtained. The results show that the Basic Structural Units (BSU) become increasingly more compact as a function of rising tem-perature and pressure. Under pressure, the local orientation of molecules is strengthened, the arrangement of BSU speeds up and the degree of order is clearly enhanced. | LI Xiaoming CAO Daiyong LIU Demin | 2010 | Mining Science and Technology2010，20，6： | 6 |
| 6 | Experimental Study on Interaction Between Degrees of Freedom in a Wave Buoy显示文摘Increasing degrees of freedom(DOFs)is a useful way to raise the power capture efficiency of oscillating wave energy converters.Thus,this study proposes a buoy with three DOFs,which are surge,heave,and pitch.The hydrodynamic performance and power capture efficiency of the buoy is physically modeled.Amplitudes of unidirectional and coupled motions are compared to analyze the interaction effect between freedoms under conditions with and without power take-off damping.The capture width ratio and corresponding growth rates are also calculated.Results show that the buoy makes a periodic sinusoidal(or approximate)movement in every DOF.Coupling effect can cause an increase in the amplitude in one DOF and a decrease in the amplitudes of the others.This phenomenon shows that the kinematic energy of the buoy redistributes to all DOFs compared with the unidirectional conditions.Adding DOFs can improve the power absorption of the buoy in most cases,but the number of DOFs is not the more the better. | HUANG Shuting SHI Hongda CAO Feifei TAN Junzhe CHENG Haixun LI Demin LIU Shangze GONG Haoxiang TAO Ji | 2019 | Journal of Ocean University of China2019，18，6： | 5 |
| 7 | Scale Issues of Wetland Classification and Mapping Using Remote Sensing Images: A Case of Honghe National Nature Reserve in Sanjiang Plain, Northeast China显示文摘Wetland research has become a hot spot linking multiple disciplines presently. Wetland classification and mapping is the basis for wetland research. It is difficult to generate wetland data sets using traditional methods because of the low accessibility of wetlands, hence remote sensing data have become one of the primary data sources in wetland research. This paper presents a case study conducted at the core area of Honghe National Nature Reserve in the Sanjiang Plain, Northeast China. In this study, three images generated by airship, from Thematic Mapper and from SPOT 5 were selected to produce wetland maps at three different wetland landscape levels. After assessing classification accuracies of the three maps, we compared the different wetland mapping results of 11 plant communities to the airship image, 6 plant ecotypes to the TM image and 9 landscape classifications to the SPOT 5 image. We discussed the different characteristics of the hierarchical ecosystem classifications based on the spatial scales of the different images. The results indicate that spatial scales of remote sensing data have an important link to the hierarchies of wetland plant ecosystems displayed on the wetland landscape maps. The richness of wetland landscape information derived from an image closely relates to its spatial resolution. This study can enrich the ecological classification methods and mapping techniques dealing with the spatial scales of different remote sensing images. With a better understanding of classification accuracies in mapping wetlands by using different scales of remote sensing data, we can make an appropriate approach for dealing with the scale issue of remote sensing images. | GONG Huili | 2011 | Chinese Geographical Science2011，21，2： | 5 |
| 8 | Impact of Land Use Change on Groundwater Recharge in Guishui River Basin,China显示文摘It is important to understand how land use change impacts groundwater recharge,especially for regions that are undergoing rapid urbanization and there is limited surface water.In this study,the hydrological processes and re-charge ability of various land use types in Guishui River Basin,China(in Beijing Municipality) were analyzed.The impact of land use change was investigated based on water balance modeling,WetSpass and GIS.The results indicate that groundwater recharge accounts for only 21.16% of the precipitation,while 72.54% is lost in the form of evapotranspiration.The annual-lumped groundwater recharge rate decreases in the order of cropland,grassland,urban land,and forest.Land use change has resulted in a decrease of 4 × 106 m3 of yearly groundwater recharge in the study area,with a spatially averaged rate of 100.48 mm/yr and 98.41 mm/yr in 1980 and 2005,respectively.This variation has primarily come from an increase of urban area and rural settlements,as well as a decrease of cropland. | PAN Yun GONG Huili ZHOU Demin LI Xiaojuan NAKAGOSHI Nobukazu | 2011 | Chinese Geographical Science2011，21，6： | 5 |
| 9 | Clinical significance of germline copy number variation in susceptibility of human diseases显示文摘Germline copy number variation(CNV) is considered to be an important form of human genetic polymorphisms. Previous studies have identified amounts of CNVs in human genome by advanced technologies, such as comparative genomic hybridization, single nucleotide genotyping, and high-throughput sequencing. CNV is speculated to be derived from multiple mechanisms, such as nonallelic homologous recombination(NAHR) and nonhomologous end-joining(NHEJ). CNVs cover a much larger genome scale than single nucleotide polymorphisms(SNPs), and may alter gene expression levels by means of gene dosage, gene fusion, gene disruption, and long-range regulation effects, thus affecting individual phenotypes and playing crucial roles in human pathogenesis. The number of studies linking CNVs with common complex diseases has increased dramatically in recent years. Here, we provide a comprehensive review of the current understanding of germline CNVs, and summarize the association of germline CNVs with the susceptibility to a wide variety of human diseases that were identified in recent years. We also propose potential issues that should be addressed in future studies. | Liwen Hu Xinyue Yao Hairong Huang Zhong Guo Xi Cheng Yang Xu Yi Shen Biao Xu Demin Li | 2018 | Journal of Genetics and Genomics2018，45，1： | 4 |
| 10 | The temporal dynamics of antimicrobial-resistant Salmonella enterica and predominant serovars in China显示文摘Salmonella enterica is one of the most common bacterial pathogens in humans and animals.Systematic studies on the trends and geographical distribution of antimicrobial-resistant Salmonella and dominant serovars have been well studied in European and American countries while not in China.Here,taking the One-Health strategy,we used>35000 Salmonella enterica isolates to explore the temporal and spatial dynamics of dominant serovars in China.We found that Salmonella Typhimurium was the dominant serovar causing human infection in China,which was consistent with Australia but inconsistent with North American and European countries.The proportion of Salmonella serovars Typhimurium,London,Rissen,Corvallis,Meleagridis,Kentucky,and Goldcoast showed an increasing trend during 2006-2019.We randomly selected 1962 isolates for comparative genomics and antimicrobial resistance studies and found that the number of antibiotic resistance genes(ARGs)per isolate increased 1.84 and 2.69 times of human and non-human origins,respectively,spanning 14 years.The proportion of antimicrobial-resistant Salmonella isolates had an increasing trend during 2006-2019,especially beta-lactam,quinolone,tetracycline,and rifampicin resistance.Moreover,we found that higher diversity of sequence types(STs)in S.Typhimurium than in other serovars,ST34 from pig and ST 19 from chicken origin,were mainly associated with isolates causing child and adult gastro-infection,respectively.Our results fill in the data gap on the trends of dominant serovars and antimicrobial resistance of Salmonella enterica in China.These data provide useful information for public health decision-makers prioritizing interventions for foodborne diseases and food safety. | Yanan Wang Yue Liu Na Lyu Zhiyuan Li Sufang Ma Demin Cao Yuanlong Pan Yongfei Hu Hua Huang George F.Gao Xuebin Xu Baoli Zhu | 2023 | National Science Review2023，10，3： | 4 |
| 11 | Tectonic Landform of Quaternary Lakes and Its Implications for Deformation in the Northern Qinghai-Tibet Plateau显示文摘在北 Qinghai 西藏高原的 Hohxil 区域由众多的高原湖被占据,它长作为是构造产品被推断了。然而,到目前为止,小证据都没被发现支持这试验推理。在 Hohxil 区域的东方片断的 TM 卫星图象的地调查和 morphotectonic 分析表明库赛·莱克和耶卢苏·莱克是塑造 S 的拉开盆,它被左罢工滑倒主人差错 trending WNW-ESE 统治。二个湖的拉开距离被分析是 <15 20 km 和 15 km 分别地。基于指责的率的研究,拉开盆的开始年龄被建议是近似在早更新世。拉开盆 tectonics 进一步在北 Qinghai 西藏高原为广泛地分布式的大湖盆被认为是普通机制。盆和他们的实质的 intra 块滑动的这些拉开的地区性的分发建议那一左首砍应力,独立于著名罢工滑倒差错,被强加了在上越过北 Qinghai 西藏高原。因此, intra 块滑倒可以是在提供在印度和欧亚大陆之间的进行中的大陆大陆集中的高原外壳的材料的东方挤出的重要表情。在高原内地以内的拉开 tectonics 的展现由全球放系统(GPS ) 为最新建议的连续变丑提供领域证据和变丑的一种可能的式样越过北 Qinghai 西藏高原的测量。关于系统的构造地形开发,一个模型最后为拉开盆被建议。 | WANG An WANG Guocan LI Dewei XIE Defan LIU Demin | 2009 | Acta Geologica Sinica(English Edition)2009，83，1： | 3 |
| 12 | Effect of anterior tympanomeatal angle blunting on the middle ear transfer function using a finite element ear model显示文摘 | Jie Wang Fei Zhao Yongxin Li Demin Han Shusheng Gong Shouqin Zhao Hua Zhang | 2011 | Medical Engineering and Physics2011，，9： | 3 |
| 13 | Time-delayed feedback control optimization for quasi linear systems under random excitations显示文摘A strategy for time-delayed feedback controloptimization of quasi linear systems with random excitationis proposed. First, the stochastic averaging method isused to reduce the dimension of the state space and to derivethe stationary response of the system. Secondly, the controllaw is assumed to be velocity feedback control with timedelay and the unknown control gains are determined by theperformance indices. The response of the controlled systemis predicted through solving the Fokker-Plank-Kolmogorovequation associated with the averaged It equation. Finally,numerical examples are used to illustrate the proposed controlmethod, and the numerical results are confirmed byMonte Carlo simulation. | Xueping Li Demin Wei Weiqiu Zhu School of Civil Engineering and Transportation, South China University of Technology, 510640 Guangzhou, China Department of Mechanics, State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, 310027 Hangzhou, China | 2009 | Acta Mechanica Sinica2009，25，3： | 2 |
| 14 | Long-term adaptive informative path planning for scalar field monitoring using cross-entropy optimization显示文摘Dear editor,Robots are extensively used in various civil and military applications (1, 2)In the last decade, informative path planning (IPP) has been one of the most important research areas in modern robot engineering [3], especially in long-term monitoring of a particular area of interest. | Yang LI Rongxin CUI Weisheng YAN Demin XU | 2019 | Science China(Information Sciences)2019，62，5： | 2 |
| 15 | Effects of soil amendments, foliar sprayings of silicon and selenium and their combinations on the reduction of cadmium accumulation in rice显示文摘Agricultural soil contamination by cadmium (Cd) is becoming one of the most serious environmental issues and public concerns. In this study, factorial arrangements of treatments were designed to explore the effects of two soil amendments, sodium sulfide-biofuel ash (SSBA) and lime (0.1%), and three foliar applications, silicon (Si, 2.5 mmol L-1), selenium (Se, 40 mg L-1), and their combination (SS), on Cd reduction in rice (Oryza sativa L.) in a pot experiment, which were then verified in a field experiment. Compared with the control without amendment but with spraying of deionized water, both SSBA and lime significantly reduced concentrations of CaCl2-extractable Cd in soil by 30%–39% and 31%–40% and Cd in brown rice by 44%–63% and 53%–72% in the pot and field experiments, respectively. Foliar Si, Se, and SS applications significantly reduced Cd accumulation in brown rice by 62%–64%, 72%–83%, and 39%–73%, respectively, increased rice grain yield, and improved antioxidant enzyme activities in rice leaves but with different trends in the pot and field experiments. Combinations of SSBA and lime with Si, Se, and SS had a non-significant synergistic effect on Cd reduction in brown rice compared to only foliar spraying or soil amendment in both pot and field experiments, although SSBA + Se and SSBA + Si reduced Cd concentration in brown rice by 16%–34% and 14%–24% compared to only foliar Si and Se and soil SSBA applications, respectively. Soil lime application and foliar Si spraying were the most cost-effective strategies to reduce Cd accumulation in brown rice in the field and pot experiments, respectively. Although soil amendments and foliar treatments were individually effective, their combinations failed to generate a significant synergistic reduction of Cd concentration in brown rice. | Demin LI Hongyan LIU Min GAO Jing ZHOU Jun ZHOU | 2022 | Pedosphere2022，32，4： | 2 |
| 16 | NKT cells in HIV-1 infection显示文摘自然漂亮 T (NKT ) 细胞是一张唯一的 T 细胞人口有重要 immunoregulatory 功能并且被显示了对微生物的一个范围涉及宿主免疫。他们可能在 HIV-1 感染起一个作用,有选择地因此在感染的早阶段期间被弄空,这也出现。最近的研究在高度活跃的 antiretroviral 治疗(HAART ) 下面在 HIV-1 感染和他们的恢复期间关于 NKT 弄空的动力学被考察。为这些变化的可能的机制在 HIV 致病基于最近的开发被建议。进一步的讨论被 downregulating CD1d 表示在抗原演讲房间(APC ) 上集中于 HIV NKT 激活的混乱。HIV-1 蛋白质 Nef 被发现由打断初生、再循环的 CD1d 分子的细胞内部的 trafficking 起主要作用。 | Demin Li Xiao-Ning Xu | 2008 | Cell Research2008，18，8： | 2 |
| 17 | Mixed finite element for two-dimensional incompressible convective Brinkman-Forchheimer equations显示文摘In this work, the two-dimensional convective Brinkman-Forchheimer equa- tions are considered. The well-posedness for the variational problem and its mixed finite element approximation is established, and the error estimates based on the conforming approximation are obtained. For the computation, a one-step Newton (or semi-Newton) iteration algorithm initialized using a fixed-point iteration is proposed. Finally, numerical experiments using a Taylor-Hood mixed element built on a structured or unstructured triangular mesh are implemented. The numerical results obtained using the algorithm are compared with the analytic data, and are shown to be in very good agreement. Moreover, the lid-driven problem at Reynolds numbers of 100 and 400 is considered and analyzed. | Demin LIU Kaitai LI | 2019 | Applied Mathematics and Mechanics(English Edition)2019，40，6： | 2 |
| 18 | Construction and characterization of a bacterial artificial chromosome library of rice 5460F显示文摘Thermo-sensitive genie male sterile (TGMS) rice has a number of desirable characteristics for hybrid rice production. Many studies have demonstrated that the sterility of TGMS rice is controlled by a single recessive gene. It has been mapped for the first time on chromosome 8 and named tms1. Several AFLP markers which tightly linked to the tms1 gene have been identified recently. In order to develop a detailed physical map of the tms1 gene-encompassing region and finally clone the tms1 gene, a bacterial artificial chromosome (BAC) | Jianmin Fu Xueping Qu Chuanyou Li Jianhang Jia Demin Jin Qian Wang Rencui Yang Bin Wang | 1999 | Chinese Science Bulletin1999，44，17： | 2 |
| 19 | Frontier research of ultra-high-speed ultra-large-capacity and ultra-long-haul optical transmission显示文摘极端高速度, ultra-large-capacity 和 ultra-long-haul (3U ) 是光通讯的永久追求。作为光通讯的一个新模式, 3U 传播能极大地支持下一代光因特网和宽带活动通讯网络开发和工艺的进步,因此,它变得国际高技术知识产权竞争的焦点扎根。这篇论文在 3U 传播研究引入科学问题,关键技术和重要成就。 | Daojun XUE Shaohua YU Qi YANG Nan CHI Lan RAO Xiangjun XIN Wei LI Songnian FU Sheng CUI Demin LIU Zhuo LI Aijun WEN Chongxiu YU Xinmei WANG | 2016 | Frontiers of Optoelectronics2016，9，2： | 2 |
| 20 | A study on the heat of fusion of β-cpolypropylene显示文摘 | Li J X Cheung W L Jia Demin | 1999 | Polymer1999，40，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员