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| 1 | Photochemical pollution in Lanzhou, China - A case study显示文摘The photochemical air pollution in Xigu district of Lanshou city, Gansu Province was studied during a period of 1981-1984. The extremely high NMHC/NOx ratio and ozone level elevation after rain have been noticed. A series of outdoor and indoor reaction chamber simulation experiments conducted in order to understand the specific conditions. The ozone formation under NMHC/NOx condition and the possible reason for high ozone concentration after rain are discussed. | Tang Xiaoyan , Li Jinglong, Dong ZhenXing, Wang Yuying,Wang Wenxing , Qi Liwen, Liu Xiling, Zhang Yutian, Zhang Xuejin,Tian Bingshen, Jin Suwen , Yang Lingqing and Zhang Yixin Department of Technical Physics,Peking University, Beijing, China. Chinese Reaearch Academy of Eavironmental Sciences, Beijing,China. Gansu Provincial Environmental Research Institute, Lanshou, China. Lanshou Petrochemical Engineering Institute, Lanshou, China. | 1989 | Journal of Environmental Sciences1989，1，1： | 15 |
| 2 | Identification and screening of nitrogenefficient cotton genotypes under low and normal nitrogen environments at the seedling stage显示文摘Background: Large quantities of nitrogen(N) fertilizer applied to cotton cropping systems support high yields but cause adverse environmental impacts such as N_20 emission and water eutrophication. The development of cotton cultivars with higher N use efficiencies suitable for low-N conditions is therefore important for sustainable production. In this study, we evaluated 100 cotton genotypes in 2016 for N use efficiency and related traits at the seedling stage.Methods: Sand culture experiment was conducted with low N levels(0.01 g·kg^(-1)) or normal N levels(0.1 g·kg^(-1)).We investigated plant height, SPAD value(soil plant analysis development chlorophyll meter), dry weight, N accumulation, N utilization efficiency, and N uptake efficiency. Through descriptive statistics, principal component analysis and heatmap clustering analysis, we confirmed the evaluation index system of N-efficient genotypes and the classification of N-efficient genotypes.Results: Significant differences were observed among N levels and genotypes for all agronomic traits and N levels.Coefficients of variation varied greatly and ranged from 6.7~28.8 and 7.4~20.8 under low-N and normal-N treatment, respectively. All traits showed highly significant positive correlations with each other, except SPAD value.The principal components under both N levels were similar, showing that total dry weight, aboveground dry weight, total N accumulation, and N uptake efficiency were important components. We confirmed these four traits as suitable screening indexes for low N tolerance. Based on the results of heatmap clustering and scatter diagram analysis of N efficiency value, 10 genotypes were found low-N tolerant, in which five varieties were inefficient under both low and normal N conditions, while four varieties were found efficient under low-N conditions but inefficient under normal-N conditions. Only one variety was efficient under both low and normal-N conditions. Meanwhile, 20 genotypes were identified as low-N sensitive ones, in which 19 genotypes were inefficient under low-N conditions but efficient under normal-N conditions, one variety was inefficient under both low and normal-N conditions.Conclusion: We preliminarily identified Kashi as a low-N tolerant and N-efficient cotton genotype, and CCRI 64 as a lowN sensitive and N-inefficient cotton genotype. Further studies should be carried out to verify the yield and heritability effect of specific genotypes in the field. | ZHANG Hengheng FU Xiaoqiong WANG Xiangru GUI Huiping DONG Qiang PANG Nianchang WANG Zhun ZHANG Xiling SONG Meizhen | 2018 | Journal of Cotton Research2018，1，2： | 9 |
| 3 | Gas-water stratified flow patterns from electromagnetic tomography显示文摘Because of gravitational differentiation of multi-phase fluids,gas-water flow is usually stratified in highly inclined or horizontal gas wells.By using electrode arrays to scan flowing fluids, electromagnetic tomography can identify the flow patterns of mixed fluid from the different electrical properties of gas and water.The responses for different gas-water interface locations were calculated and then physical measurements were undertaken.We compared the results of the numerical simulation with the experimental data,and found that the response characteristics were consistent in the circumstances of uniform physical fields and stratified flows.By analyzing the signal characteristics,it is found that,with the change of the interface location,the response curves showed'steps'whose position and width were decided by the location of fluid interface.The measurement accuracy of this method depended on the vertical distance between adjacent electrodes.The results showed that computer simulation can simulate the measurement of the electromagnetic tomography accurately,so the physical experiment can be replaced. | Wang Xiaoxing Wu Xiling | 2009 | Petroleum Science2009，6，3： | 7 |
| 4 | Trends of Urban Air Pollution in Zhengzhou City in 1996-2008显示文摘Urban air pollution is a commonly concerned environmental problem in the world.Identification of air quality trend using long-term monitoring data is helpful to understand the effectiveness of pollution control strategies.This study,using data from six monitoring stations in Zhengzhou City,analyzed the changing trend in concentrations of SO 2,NO x /NO 2 and TSP/PM 10 in 1996-2008,based on non-parametric Mann-Kendall test and Sen's slope estimator,and evaluated the comprehensive air pollution level using Multi-Pollutant Index(MPI).It was found that the concentration of each pollutant exceeded obviously the World Health Organization(WHO) guideline value,but the changing trend varied:SO 2 and NO 2 were significantly increased mainly due to an increase in coal consumption and vehicle number,while NO x,TSP and PM 10 decreased.The air pollution was serious,and differed markedly among the three functional regions:it is the most severe in the Industrial and Residential Area(IRA),followed by the Transportation Hub and Business District(THBD),and then the High-tech,Cultural and Educational Area(HCEA).Different from NO 2 concentration that had a similar change trend/rate among the function regions,the change rate of PM 10 concentration differed spatially,decreased much more obviously in THBD than other two regions.For the whole city,the comprehensive air pollution level declined gradually,illustrating that the air quality in Zhengzhou was improved in the last decade. | DU Xile LU Changhe WANG Hairong MA Jianhua | 2012 | Chinese Geographical Science2012，22，4： | 6 |
| 5 | A Clustering-tree Topology Control Based on the Energy Forecast for Heterogeneous Wireless Sensor Networks显示文摘How to design an energy-efficient algorithm to maximize the network lifetime in complicated scenarios is a critical problem for heterogeneous wireless sensor networks(HWSN).In this paper, a clustering-tree topology control algorithm based on the energy forecast(CTEF) is proposed for saving energy and ensuring network load balancing, while considering the link quality, packet loss rate, etc. In CTEF, the average energy of the network is accurately predicted per round(the lifetime of the network is denoted by rounds) in terms of the difference between the ideal and actual average residual energy using central limit theorem and normal distribution mechanism, simultaneously. On this basis, cluster heads are selected by cost function(including the energy, link quality and packet loss rate) and their distance.The non-cluster heads are determined to join the cluster through the energy, distance and link quality. Furthermore, several noncluster heads in each cluster are chosen as the relay nodes for transmitting data through multi-hop communication to decrease the load of each cluster-head and prolong the lifetime of the network. The simulation results show the efficiency of CTEF. Compared with low-energy adaptive clustering hierarchy(LEACH), energy dissipation forecast and clustering management(EDFCM) and efficient and dynamic clustering scheme(EDCS)protocols, CTEF has longer network lifetime and receives more data packets at base station. | Zhen Hong Rui Wang Xile Li | 2016 | IEEE/CAA Journal of Automatica Sinica2016，3，1： | 6 |
| 6 | Screening and evaluation of reliable traits of upland cotton(Gossypium hirsutum L.)genotypes for salt tolerance at the seedling growth stage显示文摘Background:Salt stress significantly inhibits the growth,development,and productivity of cotton because of osmotic,ionic,and oxidative stresses.Therefore,the screening and development of salt tolerant cotton cultivars is a key issue towards sustainable agriculture.This study subjected 11 upland cotton genotypes at the seedling growth stage to five different salt concentrations and evaluated their salt tolerance and reliable traits.Results:Several morpho-physiological traits were measured after 10 days of salinity treatment and the salt tolerance performance varied significantly among the tested cotton genotypes.The optimal Na Cl concentration for the evaluation of salt tolerance was 200 mmol·L-1.Membership function value and salt tolerance index were used to identify the most consistent salt tolerance traits.Leaf relative water content and photosynthesis were identified as reliable indicators for salt tolerance at the seedling stage.All considered traits related to salt tolerance indices were significantly and positively correlated with each other except for malondialdehyde.Cluster heat map analysis based on the morpho-physiological salt tolerance-indices clearly discriminated the 11 cotton genotypes into three different salt tolerance clusters.Cluster I represented the salt-tolerant genotypes(Z9807,Z0228,and Z7526)whereas clusters II(Z0710,Z7514,Z1910,and Z7516)and III(Z0102,Z7780,Z9648,and Z9612)represented moderately salttolerant and salt-sensitive genotypes,respectively.Conclusions:A hydroponic screening system was established.Leaf relative water content and photosynthesis were identified as two reliable traits that adequately represented the salt tolerance of cotton genotypes at the seedling growth stage.Furthermore,three salt-tolerant genotypes were identified,which might be used as genetic resources for the salt-tolerance breeding of cotton. | SIKDER Ripon Kumar WANG Xiangru JIN Dingsha ZHANG Hengheng GUI Huiping DONG Qiang PANG Nianchang ZHANG Xiling SONG Meizhen | 2020 | Journal of Cotton Research2020，3，2： | 5 |
| 7 | Hierarchical Feature-Based Detection Method for SAR Targets Under Complex Environment显示文摘A reliable target detection method for Synthetic aperture radar(SAR)images is needed urgently with the wide application of SAR systems.The performance of conventional detection algorithms,such as Constant false alarm rate(CFAR),degrade significantly in low SCR or complex regions while the Human visual system(HVS)can identify targets of interest without knowing characteristics of the background even in complicated environment.The combination of HVS with the SAR-ATR system may effectively achieve real-time multi-target detection in complex occlusion scenes.A new effective target detection algorithm is put forward using hierarchical characteristics of targets.Inspired by different roles of the retina and visual cortex in the HVS,this detection algorithm is divided into coarse detection and fine detection stage.Two kinds of features based on the correlation between target features and suspicious targets,namely overall feature and refined feature,are used in these two stages respectively to extract real targets.Experimental results verify its correctness and effectiveness in complex environment. | GAO Fei MA Fei LUO Xiling WANG Jun SUN Jinping | 2017 | Chinese Journal of Electronics2017，26，3： | 4 |
| 8 | Severe human infection with a novel avian-origin influenza A(H7N4) virus显示文摘Human infections with influenza H7 subtypes, such as H7N9, have raised concerns worldwide. Here, we report a human infection with a novel influenza A(H7N4) virus. A 68 years-old woman with cardiovascular and cholecystic comorbidities developed rapidly progressed pneumonia with influenza-like-illness as initial symptom, recovered after 23 days-hospitalization including 8 days in ICU. Laboratory indicators for liver and blood coagulation dysfunction were observed. Oseltamivir phosphate, glucocorticoids and antibiotics were jointly implemented, with nasal catheterization of oxygen inhalation for this patient.We obtained the medical records and collected serial respiratory and blood specimens from her. We collected throat, cloacal and/or feces samples of poultry and wild birds from the patient's backyard, neighborhood, local live poultry markets(LPMs) and the nearest lake. All close contacts of the patient were followed up and sampled with throat swabs and sera. Influenza viruses and other respiratory pathogens were tested by real-time RT-PCR, viral culturing and/or sequencing for human respiratory and bird samples. Micro-neutralizing assay was performed for sera. A novel reassortant wild bird-origin H7N4 virus is identified from the patient and her backyard poultry(chickens and ducks) by sequencing, which is distinct from previously-reported avian H7N4 and H7N9 viruses. At least four folds increase of neutralizing antibodies to H7N4 was detected in her convalescent sera. No samples from close contacts, wild birds or other poultry were tested positive for H7N4 by real-time RT-PCR. | Xiang Huo Lun-biao Cui Cong Chen Dayan Wang Xian Qi Ming-hao Zhou Xiling Guo Fengming Wang William J. Liu Weirong Kong Daxin Ni Ying Chi Yiyue Ge Haodi Huang Feifei Hu Chao Li Xiang Zhao Ruiqi Ren Chang-jun Bao George F. Gao Feng-Cai Zhu | 2018 | Science Bulletin2018，63，16： | 4 |
| 9 | Molecular basis of heading date control in rice显示文摘Flowering time is of great significance for crop reproduction,yield,and regional adaptability,which is intricately regulated by various environmental cues and endogenous signals.Genetic approaches in Arabidopsis have revealed the elaborate underlying mechanisms of sensing the dynamic change of photoperiod via a coincidence between light signaling and circadian clock,the cellular time keeping system,to precisely control photoperiodic flowering time,and many other signaling pathways including internal hormones and external temperature cues.Extensive studies in rice(Oryza sativa.),one of the short-day plants(SDP),have uncovered the multiple major genetic components in regulating heading date,and revealed the underlying mechanisms for regulating heading date.Here we summarize the current progresses on the molecular basis for rice heading date control,especially focusing on the integration mechanism between photoperiod and circadian clock,and epigenetic regulation and heading procedures in response to abiotic stresses. | Hua Wei Xiling Wang Hang Xu Lei Wang | 2020 | aBIOTECH2020，1，4： | 3 |
| 10 | Flow imaging method of electromagnetic measurement in well logging显示文摘Multiphase flow in an oil well is a dynamic phenomenon of inhomogeneous medium,which should be studied in a nonlinear way. This paper presents an electromagnetic measurement method based on the electrical property differences between oil,gas and water to scan,inverse and show the distribution and condition of multiphase flow. Both numerical simulation and physical experiments have proved that clear images could be obtained by this way. | WU XiLing,WANG XiaoXing,ZHAO YanWei & YANG Mei School of Resource and Information Technology,China University of Petroleum,Beijing 102249,China | 2008 | Science China Earth Sciences2008，51，S2： | 3 |
| 11 | Design, Synthesis and Activities of Aziridine Derivatives of N^5-Methyltetrahydrofolate Against Methionine Synthase显示文摘 | DENG Xiling GUO Ying TIAN Chao LIU Junyi WANG Xiaowei ZHANG Zhili | 2015 | Chemical Research in Chinese Universities2015，31，5： | 2 |
| 12 | Technological Exploration of RRAM Crossbar Array for Matrix-Vector Multiplication显示文摘矩阵向量增加是为许多计算地集中的算法的关键操作。抵抗切换的随机的存取存储器(RRAM ) 设备和 RRAM 闩穿的新兴的金属氧化物表明了模拟矩阵向量增加的一条有希望的硬件认识与超离频精力效率。在这篇论文,我们分析设备水平和电路水平的影响非理想的因素包括 RRAM 设备的非线性的当前电压的关系,设备制造的变化并且给操作,和 interconnect 抵抗以及另外的闩数组写参数。在那上,我们建议工艺的探索流动让设备参数配置克服非理想的因素的影响并且为各特定的申请在性能,精力,和可靠性之中完成一宗更好的交易。我们向量机器(SVM ) 和混合公民标准和技术(MNIST ) 模式识别数据集开创的支持的模拟结果证明那个 RRAM 闩数组基于 SVM 是柔韧的输入信号变化但是对通道差距偏差敏感。进一步的抵抗决定测试一台 6 位的 RRAM 设备对有能力的礼品在 90% 附近认识到识别精确性,显示 RRAM 闩数组的物理可行性基于 SVM。另外,建议工艺的探索流动能与以前的工作相比在 MNIST 数据集和 26.4% 精力积蓄上完成识别精确性的 10.98% 改进。试验性的结果也证明节省的超过 84.4% 力量能以很少精确性减小的成本被完成。 | Lixue Xia Peng Gu Boxun Li Tianqi Tang Xiling Yin Wenqin Huangfu Shimeng Yu Yu Cao Yu Wang Huazhong Yang | 2016 | Journal of Computer Science & Technology2016，31，1： | 2 |
| 13 | Protein array of Coxiella burnetii probed with Q fever sera显示文摘Coxiella burnetii is the etiological agent of Q fever.To identify its major seroreactive proteins,a subgenomic protein array was developed.A total of 101 assumed virulence-associated recombinant proteins of C.burnetii were probed with sera from mice experimentally infected with C.burnetii and sera from Q fever patients.Sixteen proteins were recognized as major seroreactive antigens by the mouse sera.Seven of these 16 proteins reacted positively with at least 45% of Q fever patient sera.Notably,HspB had the highest fluorescence intensity value and positive frequency of all the proteins on the array when probed with both Q fever patient sera and mouse sera.These results suggest that these seven major seroreactive proteins,particularly HspB,are potential serodiagnostic and subunit vaccine antigens of Q fever. | WANG XiLe XIONG XiaoLu GRAVES Stephen STENOS John WEN BoHai | 2013 | Science China(Life Sciences)2013，56，5： | 2 |
| 14 | Chromosome-level Genomes Reveal the Genetic Basis of Descending Dysploidy and Sex Determination in Morus Plants显示文摘Multiple plant lineages have independently evolved sex chromosomes and variable karyotypes to maintain their sessile lifestyles through constant biological innovation.Morus notabilis,a dioecious mulberry species,has the fewest chromosomes among Morus spp.,but the genetic basis of sex determination and karyotype evolution in this species has not been identified.In this study,three high-quality genome assemblies were generated for Morus spp.[including dioecious M.notabilis(male and female)and Morus yunnanensis(female)]with genome sizes of 301–329 Mb and were grouped into six pseudochromosomes.Using a combination of genomic approaches,we found that the putative ancestral karyotype of Morus species was close to 14 protochromosomes,and that several chromosome fusion events resulted in descending dysploidy(2n=2x=12).We also characterized a~6.2-Mb sex-determining region on chromosome 3.Four potential male-specific genes,a partially duplicated DNA helicase gene(named MSDH)and three Ty3_Gypsy long terminal repeat retrotransposons(named MSTG1/2/3),were identified in the Y-linked area and considered to be strong candidate genes for sex determination or differentiation.Population genomic analysis showed that Guangdong accessions in China were genetically similar to Japanese accessions of mulberry.In addition,genomic areas containing selective sweeps that distinguish domesticated mulberry from wild populations in terms of flowering and disease resistance were identified.Our study provides an important genetic resource for sex identification research and molecular breeding in mulberry. | Zhongqiang Xia Xuelei Dai Wei Fan Changying Liu Meirong Zhang Peipei Bian Yuping Zhou Liang Li Baozhong Zhu Shuman Liu Zhengang Li Xiling Wang Maode Yu Zhonghuai Xiang Yu Jiang Aichun Zhao | 2022 | Genomics, Proteomics & Bioinformatics2022，20，6： | 1 |
| 15 | One chiral and two achiral 3-D coordination polymers constructed by 2-phenyl imidazole dicarboxylate显示文摘 | Wang Wenyue Niu Xiling Gao Yongchao | 2010 | Cryst Growth Des2010，10，9： | 1 |
| 16 | Effect of Panaxtriol Saponins on synaptophysin and postsynaptic density-95 expression at different periods of cerebral infarction显示文摘BACKGROUND:The change in expression of synaptophysin (Syp) and postsynaptic density-95 (PSD-95) alters after cerebral infarction,and the plasticity of synapses contributes greatly to nerve function recovery. Chinese medicinal substances may play an important role in the expression of Syp and PSD-95. OBJECTIVE: To observe the effect of Panaxtriol Saponins (PTS),an active component in Sanqi tongshu capsules,on the expression of Syp and PSD-95 after cerebral infarction at different time points in rats,so as to examine the cerebral function remodeling mechanism. DESIGN,TIME AND SETTING: A randomized and controlled observation which was performed in Dongzhimen Hospital,Beijing University of Traditional Chinese Medicine from January to March,2007. MATERIALS: Twenty-six healthy male Sprague Dawley rats were used to establish middle cerebral artery occlusion based on the Longa method. Sanqi tongshu capsules (containing 100 mg PTS per tablet) were provided by the Chengdu Huashen Group and nimodipine tablets (30 mg) by Tianjin Zhongyang Pharmaceutical Co.,Ltd. METHODS: Twenty-six rats were randomly divided into an operation group (n=21) and a control group (n=5). The operation group underwent the EZ Longa procedure to make the middle cerebral artery occlusion model. After surgery rats were randomly divided into a model group,a PTS group and a nimodipine group,with seven rats in each group. Rats were intragastrically administrated with saline (2 mL/d) in the model group,with Sanqi tongshu capsule (5.4 mg/100 g/d) in the PTS group,and with nimodipine (1.73 mg/100 g/d) in the nimodipine group. Rats in the control group did not undergo model establishment and drug administration. MAIN OUTCOME MEASURES: The expressions of Syp and PSD-95 were measured by immunohistochemical and image analysis at days 3,7 and 28 after the operation. RESULTS: The expression of Syp and PSD-95 in the operation group was significantly lower than in the control group at days 3,7,28 postoperatively (P<0.05). The expression of Syp and PSD-95 in the PTS group and nimodipine group was significantly higher than in the model group at day 28 postoperatively (P< 0.05-0.01). Additionally,after PTS and nimodipine treatment at different intervals,the expression of Syp and PSD-95 at day 28 postoperatively was significantly higher than those at days 3 and 7 postoperatively,respectively (P<0.01). CONCLUSION: PTS can promote the expression of Syp and PSD-95,i.e. the remodeling process of synapses,after cerebral infarction at different time points in rats,which contributes to cerebral function remodeling. | Fangyuan Cui Jiangying Zhai Weimeng Zou Xiling Wang Yihuai Zou Linggqun Zhu | 2008 | Neural Regeneration Research2008，3，11： | 1 |
| 17 | A microRNA miR-34a-Regulated Bimodal Switch Targets Notch in Colon Cancer Stem Cells显示文摘 | Pengcheng Bu Kai-Yuan Chen Joyce Huan Chen Lihua Wang Jewell Walters Yong Jun Shin Julian P. Goerger Jian Sun Mavee Witherspoon Nikolai Rakhilin Jiahe Li Herman Yang Jeff Milsom Sang Lee Warren Zipfel Moonsoo M. Jin Zeynep H. Gümü? Steven M. Lipkin Xiling | 2013 | Cell Stem Cell2013，，： | 1 |
| 18 | The nature of the potentiostatic current oscillations at iron/sulfuric acid solution interfaces 显示文摘 | Chao Wang Shenhao Chen Xiling Yu | 1994 | Electrochimica Acta1994，39，4： | 1 |
| 19 | One chiral and two achiral 3-D coordination polymers constructed by 2-phenyl imidazole dicarboxylate显示文摘 | Wang Wenyue Niu Xiling Gao Yongchao | 2010 | Cryst Growth Des2010，10，9： | 1 |
| 20 | Chromosome-level genome assemblies of five Prunus species and genome-wide association studies for key agronomic traits in peach显示文摘Prunus species include many important perennial fruit crops,such as peach,plum,apricot,and related wild species.Here,we report de novo genome assemblies for five species,including the cultivated species peach(Prunus persica),plum(Prunus salicina),and apricot(Prunus armeniaca),and the wild peach species Tibetan peach(Prunus mira)and Chinese wild peach(Prunus davidiana).The genomes ranged from 240 to 276 Mb in size,with contig N50 values of 2.27−8.30Mb and 25,333−27,826 protein-coding gene models.As the phylogenetic tree shows,plum diverged from its common ancestor with peach,wild peach species,and apricot~7 million years ago(MYA).We analyzed whole-genome resequencing data of 417 peach accessions,called 3,749,618 high-quality SNPs,577,154 small indels,31,800 deletions,duplications,and inversions,and 32,338 insertions,and performed a structural variant-based genome-wide association study(GWAS)of key agricultural traits.From our GWAS data,we identified a locus associated with a fruit shape corresponding to the OVATE transcription factor,where a large inversion event correlates with higher OVATE expression in flat-shaped accessions.Furthermore,a GWAS revealed a NAC transcription factor associated with fruit developmental timing that is linked to a tandem repeat variant and elevated NAC expression in early-ripening accessions.We also identified a locus encoding microRNA172d,where insertion of a transposable element into its promoter was found in double-flower accessions.Thus,our efforts have suggested roles for OVATE,a NAC transcription factor,and microRNA172d in fruit shape,fruit development period,and floral morphology,respectively,that can be connected to traits in other crops,thereby demonstrating the importance of parallel evolution in the diversification of several commercially important domesticated species.In general,these genomic resources will facilitate functional genomics,evolutionary research,and agronomic improvement of these five and other Prunus species.We believe that structural variant-based GWASs can also be used in other plants,animal species,and humans and be combined with deep sequencing GWASs to precisely identify candidate genes and genetic architecture components. | Qiuping Tan Sen Li Yuzheng Zhang Min Chen Binbin Wen Shan Jiang Xiude Chen Xiling Fu Dongmei Li Hongyu Wu Yong Wang Wei Xiao Ling Li | 2021 | Horticulture Research2021，8，1： | 1 |
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