|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Multiple Cropping Intensity in China Derived from Agro-meteorological Observations and MODIS Data显示文摘Double-and triple-cropping in a year have played a very important role in meeting the rising need for food in China.However,the intensified agricultural practices have significantly altered biogeochemical cycles and soil quality.Understanding and mapping cropping intensity in China′s agricultural systems are therefore necessary to better estimate carbon,nitrogen and water fluxes within agro-ecosystems on the national scale.In this study,we investigated the spatial pattern of crop calendar and multiple cropping rotations in China using phenological records from 394 agro-meteorological stations(AMSs)across China.The results from the analysis of in situ field observations were used to develop a new algorithm that identifies the spatial distribution of multiple cropping in China from moderate resolution imaging spectroradiometer(MODIS)time series data with a 500 m spatial resolution and an 8-day temporal resolution.According to the MODIS-derived multiple cropping distribution in 2002,the proportion of cropland cultivated with multiple crops reached 34%in China.Double-cropping accounted for approximately 94.6%and triple-cropping for 5.4%.The results demonstrat that MODIS EVI(Enhanced Vegetation Index)time series data have the capability and potential to delineate the dynamics of double-and triple-cropping practices.The resultant multiple cropping map could be used to evaluate the impacts of agricultural intensification on biogeochemical cycles. | YAN Huimin XIAO Xiangming HUANG Heqing LIU Jiyuan CHEN Jingqing BAI Xuehong | 2014 | Chinese Geographical Science2014，24，2： | 11 |
| 2 | Spatio-temporal variations of the bacterioplankton community composition in Chaohu Lake, China显示文摘Despite considerable attention paid to Chaohu Lake in China, the dynamics of bacterioplankton community composition (BCC) on spatial and seasonal scales are poorly understood.In this study, water samples were collected from autumn 2006 to summer 2007 at five positions in Chaohu Lake with difierent trophic status.BCC of these samples was determined by both the PCR amplification of the 16S rDNA gene and the denaturing gradient gel electrophoresis (DGGE).The abundance and diversity of bacterioplankton communities at difierent sampling positions showed similar seasonal patterns.The BCCs in the samples varied substantially, and the pattern of changes indicated that the seasonal difierence might have a significant impact on the BCC's structure in the lake.Canonical correspondence anal-ysis (CCA) on the DGGE patterns and physicochemical parameters indicated that the temperature and the levels of 5-d biochemical O2 demand (BOD5), NH3-N, CODMn, total nitrogen, total phosphorous, and dissolved oxygen significantly infiuenced the BCC, and four of the seven variables were related to the level of eutrophication.Our results indicate that eutrophic status and season are the most infiu-ential factors in determining BCC in Chaohu Lake. | Chaoling Wei Sumin Bao Xinyan Zhu Xiangming Huang | 2008 | Progress in Natural Science:Materials International2008，18，9： | 9 |
| 3 | Micromorphological Features of Diagnostic Horizons in Several soils in Southwest China: Implication for Soil Taxonomic Classification显示文摘The comparative studies on micromorphological features in diagnostic horizons of Stagnic Anthrosols, Ustic Ferrosols and Ustic Vertosols in southwestern China were conducted to underpin the rationale for Chinese Soil Taxonomy. The following findings were explored: (1) Stagnic Anthrosols had the specific micromorphological features, e.g., the humic formation in anthrostagnic epipedon, the platy structures in plow subhorizon, the secondary formation of ferromanganese and the weakly optical-orientation clay domains in hydragric horizon, etc.: (2) The groundmasses of ferric horizon in Ustic Ferrosols appeared in hue of 2.5YR or redder, and had pellicular grain structure; (3) Ustic Vertosols had a crust horizon (Acr), and crack structure dominated in Acr and angular blocky structure in disturbed horizon; (4) Because of the distinct differences in micromorphological features among these three soils, the specific micromorphological features might be employed as diagnostic horizons to differentiate soils while the quantifiable micromorphological features might potentially be selected as diagnostic indices for Chinese soil taxonomic classification. | XU Xiangming HE Yurong HUANG Chengmin XIONG Donghong | 2010 | Journal of Mountain Science2010，7，1： | 5 |
| 4 | Micromorphological Features of Paleo-Stagnic-Anthrosols at Archaeological Site of Sanxingdui,China显示文摘The archaeological site of the Sanxingdui may date back as far as 5,000 years ago.The typical profiles of Palaeo-Stagnic-Anthrosols near the ancient site were selected,which aimed to identify diagnostic horizons employing methodology of soil taxonomic classification and to reveal the micromorphological properties of the paleosols.Under long-term anthropogenic mellowing,the discernible differentiation between anthrostagnic epipedon and its subhorizons as well as hydragric horizon and its subhorizons occurred in Paleo-Stagnic-Anthrosols at the archaeological site of the Sanxingdui.The micromorphological properties diversified among each specific diagnostic subhorizon,e.g.,the developed microstructure in cultivated subhorizon within anthrostagnic epipedon,closely arranged particles and considerable micropores beneficial to both of water conservation and filtration in plow subhorizon within anthrostagnic epipedon,and automorphic optical-orientation clays and calcareous corrosion in hydragric horizons.The findings above of micromorphological features related with diagnostic horizons are significant for soil taxonomic classification. | HE Yurong HUANG Chengmin XU Xiangming WANG Yanqiang HE Xiubin | 2008 | Journal of Mountain Science2008，5，4： | 2 |
| 5 | Genomic analysis,trajectory tracking,and field surveys reveal sources and long-distance dispersal routes of wheat stripe rust pathogen in China显示文摘Identifying sources of phytopathogen inoculum and determining their contributions to disease outbreaks are essential for predicting disease development and establishing control strategies.Puccinia striiformis f.sp.tritici(Pst),the causal agent of wheat stripe rust,is an airborne fungal pathogen with rapid virulence variation that threatens wheat production through its long-distance migration.Because of wide variation in geographic features,climatic conditions,and wheat production systems,Pst sources and related dispersal routes in China are largely unclear.In the present study,we performed genomic analyses of 154 Pst isolates from all major wheat-growing regions in China to determine Pst population structure and diversity.Through trajectory tracking,historical migration studies,genetic introgression analyses,and field surveys,we investigated Pst sources and their contributions to wheat stripe rust epidemics.We identified Longnan,the Himalayan region,and the Guizhou Plateau,which contain the highest population genetic diversities,as the Pst sources in China.Pst from Longnan disseminates mainly to eastern Liupan Mountain,the Sichuan Basin,and eastern Qinghai;that from the Himalayan region spreads mainly to the Sichuan Basin and eastern Qinghai;and that from the Guizhou Plateau migrates mainly to the Sichuan Basin and the Central Plain.These findings improve our current understanding of wheat stripe rust epidemics in China and emphasize the need for managing stripe rust on a national scale. | Yuxiang Li Jichen Dai Taixue Zhang Baotong Wang Siyue Zhang Conghao Wang Jiguang Zhang Qiang Yao Mingju Li Chengyun Li Yuelin Peng Shiqin Cao Gangming Zhan Fei Tao Haifeng Gao Weili Huang Xiaojun Feng Yingwen Bai Zhuoma Qucuo Hongsheng Shang Chong Huang Wancai Liu Jiasui Zhan Xiangming Xu Xianming Chen Zhensheng Kang Xiaoping Hu | 2023 | Plant Communications2023，4，4： | 1 |
| 6 | Well-or?dered spherical LiNix CoO-2x) Mnx Ch cathode materials syn?thesized from cobalt concentration-gradient precursors显示文摘 | Huang Zhenlei Gao Iian He Xiangming | 2012 | J Power Sources2012，202，： | 1 |
| 7 | Effects of modified fertilization technology on the grain yield and nitrogen use efficiency of midseason rice显示文摘 | Xiangming Zeng Baoji Han Fangsen Xu Jianliang Huang Hongmei Cai Lei Shi | 2012 | Field Crops Research2012，，： | 1 |
| 8 | A hybrid data-driven and mechanism-based method for vehicle trajectory prediction显示文摘Ensuring the safe and efficient operation of self-driving vehicles relies heavily on accurately predicting their future trajectories.Existing approaches commonly employ an encoder-decoder neural network structure to enhance information extraction during the encoding phase.However,these methods often neglect the inclusion of road rule constraints during trajectory formulation in the decoding phase.This paper proposes a novel method that combines neural networks and rule-based constraints in the decoder stage to improve trajectory prediction accuracy while ensuring compliance with vehicle kinematics and road rules.The approach separates vehicle trajectories into lateral and longitudinal routes and utilizes conditional variational autoencoder(CVAE)to capture trajectory uncertainty.The evaluation results demonstrate a reduction of 32.4%and 27.6%in the average displacement error(ADE)for predicting the top five and top ten trajectories,respectively,compared to the baseline method. | Haoqi Hu Xiangming Xiao Bin Li Zeyang Zhang Lin Zhang Yanjun Huang Hong Chen | 2023 | Control Theory and Technology2023，21，3： | 0 |
| 9 | A hybrid chemical modification strategy for monocrystalline silicon micro-grinding:Experimental investigation and synergistic mechanism显示文摘For high performance manufacturing of micro parts and features,a hybrid chemical modification strategy is proposed to decrease critical energy barrier of mechanical removal of hard and brittle crystal material by refining localized machining condition.The strategy,namely UVlight and IR-laser hybrid chemical modification(UVIR-CM)strategy,includes two steps,an ultraviolet light(UV-light)catalytic advanced oxidation and an infrared laser(IR-laser)assisted selective modification based on Fenton liquid–solid reaction for monocrystalline silicon.The modification effects of UVIR-CM strategy were investigated by surface morphology micro-observation,crosssection transmission electron microscopy(TEM)observation,Raman spectroscopy analysis and nanoindentation test.Experimental results demonstrated that varied degrees of laser texturing appeared on different strategy samples’IR-laser scanned area.And the IR-laser thermal damage has been successfully inhibited due to the refraction and reflection of energy by bubbles in liquid medium.But for the UVIR-CM strategy,a uniform and amorphous silicate layer is detected in a certain boundary.The UV-light promotes oxidation cycle ability of the chemical solution and ensures sufficient oxide modified layer for subsequent step.Attributing to synergism of photochemical,photothermal and kinetic effects induced by IR-laser,the modified layer displays layered structure with about 600 nm thickness,(2.7±0.60)GPa nanohardness,and(93.7±22.9)GPa indentation modulus.And the layered structure is amorphous layer,nanocrystal and micro-twins layer from the surface to the interior of sample.Consequently,it reveals that the subsequent mechanical removal will become easy due to decreasing energy barrier of monocrystalline silicon in selective area.Meanwhile,its original excellent mechanical properties also are maintained under a certain depth.The results contribute to develop a novel combined micro-machining technology to achieve collaborative manufacturing of structure shape and surface integrity for micro parts and feature. | Yinghui REN Kexin LI Wei LI Xiangming HUANG Xiaoman LIU Genyu CHEN Toshiro DOI | 2023 | Chinese Journal of Aeronautics2023，36，7： | 0 |
| 10 | ML-SLD:A message-level stateless design for cloud-native 5G core network显示文摘The Internet of Things(IoTs)has become an essential component of the 5th Generation(5G)network and beyond,accelerating the transition to digital society.The increasing signaling traffic generated by billions of IoT devices has placed significant strain on the 5G Core network(5GC)control plane.To address this issue,the 3rd Gener-ation Partnership Project(3GPP)first proposed a Service-Based Architecture(SBA),intending to create a flexible,scalable,and agile cloud-native 5GC.However,considering the coupling of protocol states and functions,there are still many challenges to fully utilize the benefits of the cloud computing and orchestrate the 5GC in a cloud-native manner.We propose a Message-Level StateLess Design(ML-SLD)to provide a cloud-native 5GC from an architectural standpoint in this paper.Firstly,we propose an innovative mechanism for servitization of the N2 interface to maintain the connection between Radio Access Network(RAN)and the 5GC,avoiding interruptions and dropouts of large-scale user data.Furthermore,we propose an On-demand Message Forwarding(OMF)al-gorithm to reduce the impact of cloud fluctuations on the performance of cloud-native 5GC.Finally,we create a prototype that is based on the OpenAirInterface(OAI)5G core network projects,with all Network Functions(NFs)packaged in dockers and deployed in a kubernetes-based cloud environment.Several experiments have been built with UERANSIM and Chaosblade simulation tools.The findings demonstrate the viability and efficiency of our proposed methods. | Keliang Du Luhan Wang Xiangming Wen Yu Liu Haiwen Niu Shaoxin Huang | 2023 | Digital Communications and Networks2023，9，3： | 0 |
| 11 | Observations of the solar corona during the total solar eclipse on 21 August 2017显示文摘The Sun’s tenuous outer atmosphere,the corona,emits only about one-millionth as much light as the solar surface.In ancient times the corona was observed by human beings only during total solar eclipses,when the strong emission of visible light from the photosphere was completely blocked by the Moon.In 1931, | Hui Tian ZhongQuan Qu YaJie Chen LinHua Deng ZhengHua Huang Hao Li Yue Zhong Yu Liang JingWen Zhang YiGong Zhang BaoLi Lun XiangMing Cheng XiaoLi Yan ZhiKe Xue YuXin Xin ZhiMing Song YingJie Zhu Tanmoy Samanta | 2017 | Earth and Planetary Physics2017，1，1： | 0 |
| 12 | Expert Consensus on Nutritional Support for Children with Congenital Heart Disease(2023 Edition)显示文摘The second edition of the expert consensus on pediatric nutrition was formed based on a global update of pedia-tric nutrition guidelines or consensus worldwide,the management of congenital heart disease,and the results of multi-center clinical nutrition research for congenital heart disease following thefirst Chinese consensus edition of 2016.The consensus was also shaped by the results of three discussion sessions and two questionnaires con-ducted by the 13-member collaboration group.This process was informed by both clinical guidelines and expert consensus.The quality of literature,both in English and Chinese,and the level of recommendations were evaluated using the Grading of Recommendations Assessment,Development,and Evaluations(GRADE)system. | Xuming Mo Wei Cai Jirong Qi Zhuoming Xu Ying Wang Weihui Yan Shoujun Li Nianguo Dong Xinxin Chen Jinfen Liu Qiang Shu Jimei Chen Haibo Zhang Hao Zhang Quansheng Xing Qi An Xiaofeng Li Xu Wang Yan He Junwu Su Taibing Fan Teng Ming Weibing Tang Li Hong Jinghao Zheng Ming Ye Guocheng Sun Yiqun Ding Liang Tao Yifeng Yang Zhongshi Wu Hua Cao Qiang Wang Keming Yang Libing Zhang Ping Wen Yanqin Cui Bo Zhai Yong Zou Qingya Tang Rui Chen Chun Wu Zhiyu Feng Caixia Liu Yaping Mi Rufang Zhang Ke Lin Xin Li Mingan Pi Xiangming Fan Shanshan Shi Peng Huang Zhengxia Pan Jiafeng Qi Renwei Chen Shuguang Tao Yaqin Shu Huifeng Zhang Lan Jiang Min Da Nishant Patel Liang Hu Cardiac Surgery Group of Pediatric Surgery Society of Chinese Medical Association and Parenteral Enteral Nutrition Society of Chinese Medical Association | 2023 | Congenital Heart Disease2023，18，6： | 0 |
| 13 | Determination of laser entrance hole size for ignition-scale octahedral spherical hohlraums显示文摘A recently proposed octahedral spherical hohlraum with six laser entrance holes(LEHs)is an attractive concept for an upgraded laser facility aiming at a predictable and reproducible fusion gain with a simple target design.However,with the laser energies available at present,LEH size can be a critical issue.Owing to the uncertainties in simulation results,the LEH size should be determined on the basis of experimental evidence.However,determination of LEH size of an ignition target at a small-scale laser facility poses difficulties.In this paper,we propose to use the prepulse of an ignition pulse to determine the LEH size for ignition-scale hohlraums via LEH closure behavior,and we present convincing evidence from multiple diagnostics at the SGIII facility with ignition-scale hohlraum,laser prepulse,and laser beam size.The LEH closure observed in our experiment is in agreement with data from the National Ignition Facility.The total LEH area of the octahedral hohlraum is found to be very close to that of a cylindrical hohlraum,thus successfully demonstrating the feasibility of the octahedral hohlraum in terms of laser energy,which is crucially important for sizing an ignition-scale octahedrally configured laser system.This work provides a novel way to determine the LEH size of an ignition target at a small-scale laser facility,and it can be applied to other hohlraum configurations for the indirect drive approach. | Yao-Hua Chen Zhichao Li Hui Cao Kaiqiang Pan Sanwei Li Xufei Xie Bo Deng Qiangqiang Wang Zhurong Cao Lifei Hou Xingsen Che Pin Yang Yingjie Li Xiaoan He Tao Xu Yonggang Liu Yulong Li Xiangming Liu Haijun Zhang Wei Zhang Baibin Jiang Jun Xie Wei Zhou Xiaoxia Huang Wen Yi Huo Guoli Ren Kai Li Xudeng Hang Shu Li Chuanlei Zhai Jie Liu Shiyang Zou Yongkun Ding Ke Lan | 2022 | Matter and Radiation at Extremes2022，7，6： | 0 |
| 14 | Index Calculation and Analysis of China's Pesticide Import and Export During 2011-2020显示文摘Using the trade data from the General Administration of Customs of China between January 2011 and December 2020,we estimated the index for China's pesticide import and export,including annual import and export pesticide price index,quantity index and value index.We also calculated the terms of trade(TOT)of pesticide in total and by trade regions.First,China's import and export value indices of pesticide showed N-shape trends during 2011-2020,and the trend of the export value index was mainly affected by the changes in the export price index. | Shangguan Shuangyue Fang Xiangming Chen Yu He Zixuan Zhou Ruyin Qu Mengmeng Cao Bingwei Wu Lihui Huang Xinhe Wu Houbin | 2021 | Rice science2021，28，5： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员