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| 1 | An Overview on Advanced Grid-connected Inverters Used for Decentralized Renewable Energy Resources显示文摘并网逆变器是分散式可再生能源接入配电网的重要接口,随着分布式可再生能源渗透率的不断提高,并网逆变器在传统配电网中的地位越发突出。为了高效完成可再生能源分散式并网,并有效降低并网逆变器对电网的冲击,一些在装置上、结构上和功能上更加先进的并网逆变器成为了迫切的需求。针对现有的一些先进并网逆变器进行比较、分析和研究,从装置级、功能级和控制级的角度对现有先进并网逆变器进行综述。给出一些在结构上能更加灵活地将可再生能源分散接入配电网的硬件电路。研究一些适用于可再生能源分散接入的,使并网逆变器能虚拟同步发电机完成自治运行、电能质量治理、系统阻抗检测、网络阻抗控制等辅助控制功能。同时还对并网逆变器的并网同步算法和电流跟踪控制策略进行了探讨。最后,提出一个适合于可再生能源分散并网的先进并网逆变器框架。 | ZENG Zheng ZHAO Rongxiang TANG Shengqing YANG Huan LU Zhipeng | 2013 | 中国电机工程学报2013，33，24： | 76 |
| 2 | Input-occupancy-output models of the non-competitive type and their application - an examination of the China-US trade surplus显示文摘本文构建了一种能够反映中国加工贸易特点的非竞争(进口)型投入占用产出模型,提出了一个国家全部出口与分部门、分大类商品的单位出口对国内增加值和就业的拉动效应的计算方法,从数学上证明了出口总值等于出口商品所包含的完全国内增加值与完全进口额之和,并据此编制了2002年中美两国的非竞争(进口)型投入占用产出表,测算和分析了中美两国出口对各自国内增加值和就业的影响。 | Lawrence J. Lau Xikang Chen Cuihong Yang Leonard K. Cheng K. C. Fung Yun-Wing Sung Kunfu Zhu Jiansuo Pei Zhipeng Tang | 2010 | Social Sciences in China2010，31，1： | 24 |
| 3 | Characteristics of atmospheric single particles during haze periods in a typical urban area of Beijing:A case study in October,2014显示文摘To investigate the composition and possible sources of particles, especially during heavy haze pollution, a single particle aerosol mass spectrometer(SPAMS) was deployed to measure the changes of single particle species and sizes during October of 2014, in Beijing. A total of 2,871,431 particles with both positive and negative spectra were collected and characterized in combination with the adaptive resonance theory neural network algorithm(ART-2a). Eight types of particles were classified: dust particles(dust, 8.1%), elemental carbon(EC, 29.0%), organic carbon(OC, 18.0%), EC and OC combined particles(ECOC, 9.5%),Na-K containing particles(Na K, 7.9%), K-containing particles(K, 21.8%), organic nitrogen and potassium containing particles(KCN, 2.3%), and metal-containing particles(metal,3.6%). Three haze pollution events(P1, P2, P3) and one clean period(clean) were analyzed,based on the mass and number concentration of PM_(2.5)and the back trajectory results from the hybrid single particle Lagrangian integrated trajectory model(Hysplit-4 model). Results showed that EC, OC and K were the major components of single particles during the three haze pollution periods, which showed clearly increased ratios compared with those in the clean period. Results from the mixing state of secondary species of different types of particles showed that sulfate and nitrate were more readily mixed with carbon-containing particles during haze pollution episodes than in clean periods. | Lang Liu Yanli Wang Shiyong Du Wenjie Zhang Lujian Hou Sverre Vedal Bin Han Wen Yang Mindong Chen Zhipeng Bai | 2016 | Journal of Environmental Sciences2016，28，2： | 19 |
| 4 | Change analysis of rice area and production in China during the past three decades显示文摘米饭空间时间的分布,它批评为农业,环境并且食物安全研究,被自然条件以及社会经济的开发影响。把数据基于多来源,一个有效模型说出集成可耕地分发,庄稼数据的行政单位统计,农业灌溉数据和庄稼的空间生产分配模型(垃圾)适用性数据,被用来在国家规模与 10-km 象素得到米饭区域和生产的一系列空间分布它向前从1980年代初被使用并且过去常分析空间、时间的变化的模式。结果证明重要变化在 19802010 期间在中国发生在米饭。总的来说,超过 50% 米饭区域减少了,当将近 70% 米饭生产在 19802010 期间在变化区域增加了时。空间地,特别,大多数增加的区域和生产在吉林和 Heilongjiang 在东北中国;特别,大多数减少的区域和生产在区域位于东南中国很快在广东,福建和浙江的都市化。因此,米饭区域的矩心是自从 1980,向东北移动了约 230 km,并且米饭生产大约 320 km,它移动的工具米饭生产向东北比米饭区域快因为东北中国的重要米饭收益增加。结果也证明那个米饭区域变化在米饭生产变化上有明确的影响。米饭生产的大约 54.5% 增加由于播种区域的扩大,当在在米饭的 83.2% 减少附近生产由于米饭区域的收缩时。这暗示米饭生产增加可能由于区域扩大和另外的非区域因素,但是减少米饭生产能大部分被归因于米饭区域减少。 | LIU Zhenhuan LI Zhengguo TANG Pengqin LI Zhipeng WU Wenbin YANG Peng YOU Liangzhi TANG Huajun | 2013 | Journal of Geographical Sciences2013，23，6： | 15 |
| 5 | Spatio-temporal dynamics of maize cropping system in Northeast China between 1980 and 2010 by using spatial production allocation model显示文摘在地区性的规模上理解庄稼模式和他们的变化是为投射 agro 生态系统动力学的一个批评要求。然而,为印射庄稼区域和产量的分发的工具和方法仍然正在缺乏。基于跨熵的理论,一个空间生产分配模型(垃圾) 为介绍在 19802010 期间在东北中国收割系统的玉米的空间与时间的动力学被开发了。模仿的结果显示了那(1 ) 播种区域向北扩展了到 48 獥的玉米吗? | TAN Jieyang YANG Peng LIU Zhenhuan WU Wenbin ZHANG Li LI Zhipeng YOU Liangzhi TANG Huajun LI Zhengguo | 2014 | Journal of Geographical Sciences2014，24，3： | 12 |
| 6 | Liuwei Dihuang pill suppresses metastasis by regulating the wnt pathway and disrupting β-catenin/T cell factor interactions in a murine model of triple-negative breast cancer显示文摘OBJECTIVE:To investigate if the Liuwei Dihuang pill(LWDHP)can inhibit metastasis to the liver and lungs in mice bearing triple-negative breast cancer(TNBC),and the molecular mechanism underpinning this action.METHODS:Ninety-nine TNBC bearing-mice were distributed randomly to five groups:control(Con),paclitaxel(PTX),low-dose LWDHP(LLP,2.3 g·kg^-1·d^-1),middle-dose LWDHP(MLP,4.6 g·kg^-1·d^-1)and high-dose LWDHP(HLP,9.2 g·kg^-1·d^-1).The LWDHP were administered(p.o.)to the agonal stage.The morphology of BC cells was observed by hematoxylin&eosin staining.Expression of axin-2,β-catenin,T cell factor(TCF),cyclin-D1 and vascular endothelial growth factor(VEGF)was detected by western blotting or immunofluorescence.β-catenin/TCF-1 interaction was measured using a co-immunoprecipitation assay.RESULTS:After LWDHP treatment,metastasis of BC cells to the lungs and liver was inhibited,expression of axin-2 was increased,expression of TCF-1,β-catenin,cyclin-D1 and VEGF was decreased,andβ-catenin/TCF-1 interaction was disrupted.CONCLUSION:The LWDHP could inhibit metastasis of BC cells to the liver and lungs.The molecular mechanism underlying this action may be regulation of protein expression andβ-catenin/TCF-1 interactions in the Wnt pathway. | Zheng Lixiang Zheng Qing Yu Zhipeng Wang Jian Ren Xiaoying Gong Yan Yang Xue Hunag Ping Weng Meizhi Liu Hongning Liu Haizhou | 2019 | Journal of Traditional Chinese Medicine2019，39，6： | 9 |
| 7 | Local icariin application enhanced periodontal tissue regeneration and relieved local inflammation in a minipig model of periodontitis显示文摘Periodontitis is an inflammatory autoimmune disease. Treatment should alleviate inflammation, regulate the immune reaction and promote periodontal tissue regeneration. Icariin is the main active ingredient of Epimedii Folium, and it is a promising compound for the enhancement of mesenchymal stem cell function, promotion of bone formation, inhibition of bone resorption, alleviation of inflammation and regulation of immunity. The study investigated the effect of icariin on periodontal tissue regeneration in a minipig model of periodontitis. The minipig model of periodontitis was established. Icariin was injected locally. The periodontal clinical assessment index, a computed tomography(CT) scan, histopathology and enzyme-linked immune sorbent assay(ELISA)were used to evaluate the effects of icariin. Quantitative analysis results 12 weeks post-injection demonstrated that probing depth,gingival recession, attachment loss and alveolar bone regeneration values were(3.72 ± 1.18) mm vs.(6.56 ± 1.47) mm,(1.67 ± 0.59)mm vs.(2.38 ± 0.61) mm,(5.56 ± 1.29) mm vs.(8.61 ± 1.72) mm, and(25.65 ± 5.13) mm3 vs.(9.48 ± 1.78) mm3 in the icariin group and0.9% NaCl group, respectively. The clinical assessment, CT scan, and histopathology results demonstrated significant enhancement of periodontal tissue regeneration in the icariin group compared to the 0.9% NaCl group. The ELISA results suggested that the concentration of interleukin-1 beta(IL-1β) in the icariin group was downregulated compared to the 0.9% NaCl group, which indicates that local injection of icariin relieved local inflammation in a minipig model of periodontitis. Local injection of icariin promoted periodontal tissue regeneration and exerted anti-inflammatory and immunomodulatory function. These results support the application of icariin for the clinical treatment of periodontitis. | Xiuli Zhang Nannan Han Guoqing Li Haoqing Yang Yangyang Cao Zhipeng Fan Fengqiu Zhang | 2018 | International Journal of Oral Science2018，10，3： | 9 |
| 8 | LICOM Model Datasets for the CMIP6 Ocean Model Intercomparison Project显示文摘The datasets of two Ocean Model Intercomparison Project(OMIP)simulation experiments from the LASG/IAP Climate Ocean Model,version 3(LICOM3),forced by two different sets of atmospheric surface data,are described in this paper.The experiment forced by CORE-II(Co-ordinated Ocean–Ice Reference Experiments,Phase II)data(1948–2009)is called OMIP1,and that forced by JRA55-do(surface dataset for driving ocean–sea-ice models based on Japanese 55-year atmospheric reanalysis)data(1958–2018)is called OMIP2.First,the improvement of LICOM from CMIP5 to CMIP6 and the configurations of the two experiments are described.Second,the basic performances of the two experiments are validated using the climatological-mean and interannual time scales from observation.We find that the mean states,interannual variabilities,and long-term linear trends can be reproduced well by the two experiments.The differences between the two datasets are also discussed.Finally,the usage of these data is described.These datasets are helpful toward understanding the origin system bias of the fully coupled model. | Pengfei LIN Zhipeng YU Hailong LIU Yongqiang YU Yiwen LI Jirong JIANG Wei XUE Kangjun CHEN Qian YANG Bowen ZHAO Jilin WEI Mengrong DING Zhikuo SUN Yaqi WANG Yao MENG Weipeng ZHENG Jinfeng MA | 2020 | Advances in Atmospheric Sciences2020，37，3： | 9 |
| 9 | Emission factors of polycyclic aromatic hydrocarbons from domestic coal combustion in China显示文摘Domestic coal stove is widely used in China, especially for countryside during heating period of winter, and polycyclic aromatic hydrocarbons(PAHs) are important in flue gas of the stove. By using dilution tunnel system, samples of both gaseous and particulate phases from domestic coal combustion were collected and 18 PAH species were analyzed by GC-MS. The average emission factors of total 18 PAH species was 171.73 mg/kg, ranging from 140.75 to 229.11 mg/kg for bituminous coals, while was 93.98 mg/kg, ranging from 58.48 to 129.47 mg/kg for anthracite coals. PAHs in gaseous phases occupied 95% of the total of PAHs emission of coal combustion. In particulate phase, 3-ring and 4-ring PAHs were the main components, accounting for 80% of the total particulate PAHs. The total toxicity potency evaluated by benzo[a]pyrene-equivalent carcinogenic power, sum of 7 carcinogenic PAH components and 2,3,7,8-tetrachlorodibenzodioxin had a similar tendency. And as a result, the toxic potential of bituminous coal was higher than that of anthracite coal. Efcient emission control should be conducted to reduce PAH emissions in order to protect ecosystem and human health. | Chunmei Geng Jianhua Chen Xiaoyang Yang Lihong Ren Baohui Yin Xiaoyu Liu Zhipeng Bai | 2014 | Journal of Environmental Sciences2014，26，1： | 8 |
| 10 | Emission factors, ozone and secondary organic aerosol formation potential of volatile organic compounds emitted from industrial biomass boilers显示文摘To evaluate the potential benefits of biomass use for air pollution control, this paper identified and quantified the emissions of major reactive organic compounds anticipated from biomass-fired industrial boilers. Wood pellets(WP) and straw pellets(SP) were burned to determine the volatile organic compound emission profiles for each biomass-boiler combination. More than 100 types of volatile organic compounds(VOCs) were measured from the two biomass boilers. The measured VOC species included alkanes, alkenes and acetylenes, aromatics, halocarbons and carbonyls. A single coal-fired boiler(CB) was also studied to provide a basis for comparison. Biomass boiler 1(BB1) emitted relatively high proportions of alkanes(28.9%–38.1% by mass) and alkenes and acetylenes(23.4%–40.8%),while biomass boiler 2(BB2) emitted relatively high proportions of aromatics(27.9%–29.2%)and oxygenated VOCs(33.0%–44.8%). The total VOC(TVOC) emission factors from BB1(128.59–146.16 mg/kg) were higher than those from BB2(41.26–85.29 mg/kg). The total ozone formation potential(OFP) ranged from 6.26 to 81.75 mg/m^3 with an average of 33.66 mg/m^3 for the two biomass boilers. The total secondary organic aerosol potential(SOAP) ranged from 61.56 to 211.67 mg/m^3 with an average of 142.27 mg/m^3 for the two biomass boilers.The emission factors(EFs) of TVOCs from biomass boilers in this study were similar to those for industrial coal-fired boilers with the same thermal power. These data can supplement existing VOC emission factors for biomass combustion and thus enrich the VOC emission inventory. | Chunmei Geng Wen Yang Xuesong Sun Xinhu Wang Zhipeng Bai Xia Zhang | 2019 | Journal of Environmental Sciences2019，31，9： | 8 |
| 11 | High-performance Li-ion batteries based on graphene quantum dot wrapped carbon nanotube hybrid anodes显示文摘Since Akira Yoshino first proposed the usage of the carbonaceous materials as an anode of lithium ion batteries(LIBs)in 1985,carbonaceous materials such as graphite and graphene have been widely considered as LIB anodes.Here,we explored the application of novel carbonaceous UB anodes incorporating graphene quantum dots(GQDs).We fabricated a freestanding all-carbon electrode based on a porous carbon nanotube(CNT)sponge via a facile in-situ hydrothermal deposition technique,creating coaxial structure of GQD-coated CNTs(GQD@CNTs)through electrostatic interaction and n-n stacking with tunable loading and functionalization.This hybrid structure combined conductive CNTs with highly active GQDs,in which GQDs with predesigned functional groups provided massive storage sites for Li ions and the 3D CNT frameworks avoided the agglomeration of GQDs,together contributing to a high specific capacity(700 mAh·g^-1 at 100 mA·g^-1 after 100 cycles)and rate performance.Even at a high current density of 1,000 mA·g^-1,the reversible specific capacity remained at 483 mAh g-1 after 350 cycles.In particular,the mechanism study demonstrated the important role of oxygen functional groups of GQDs in promoting the performance of the LIB anodes by controlled grafting of GQDs onto various porous-carbon and metal-foam based structures. | Xuewei Zhao Yizeng Wu Yunsong Wang Huaisheng Wu Yawei Yang Zhipeng Wang Linxiu Dai Yuanyuan Shang Anyuan Cao | 2020 | Nano Research2020，13，4： | 7 |
| 12 | Recent progress in fingerprint recognition显示文摘指纹识别逐渐地被用来认识到在平民的日常生活的个人鉴定例如身份证,等等采指纹硬盘。大改进在察觉到技术和自动指纹识别算法的联机指纹被完成了。各种各样的指纹识别技术包括指纹获得,分类,改进并且匹配,高度被改进。这篇论文概述最近在指纹识别进展并且总结与低质量的指纹并且匹配弄歪的指纹图象的改进的特殊焦点为每步建议的算法。两个问题被相信是重要、挑战性的任务。另外,我们也为指纹确认比赛 2004 的指纹识别算法(FVC2004 ) 和指纹供应商技术评估讨论普通评估 2003 (FpVTE2003 ) ,基于哪个我们能客观地并且一致地测量识别算法的表演。 | TIAN Jie CHEN Xinjian ZHANG Yangyang YANG Xin HE Yuliang LI Liang XIE Weihua ZHENG Zhipeng | 2006 | Progress in Natural Science:Materials International2006，16，3： | 7 |
| 13 | Aeroelastic optimization design for wing with maneuver load uncertainties显示文摘An aeroelastic optimization design methodology for air vehicle considering the uncertainties in maneuver load conditions is presented and applied to a structural design process of low-aspect-ratio wing. An aerodynamic load correction model is developed and used to predict the critical load conditions with the perturbations of theoretical linear aerodynamic forces and experimental aerodynamic forces from wind-tunnel test, when concerning the uncertainties in use of theoretical linear and experimental aerodynamic forces. Three objective functions of critical loads are defined. The load evaluations for three wing sections are investigated in four characteristic maneuvers, and the most critical load conditions are confirmed by using the sequential quadratic programming method. On this basis, the aeroelastic optimization design employing the genetic-gradient hybrid algorithm is conducted, in which the objective is to minimize structural mass subject to the constraints of stress, deformation and flutter speed. The resulting optimal structure is heavier than the one simply based on the theoretical linear or experimental aerodynamic forces. However, it is more robust when encountering the critical load conditions in actual flight due to the consideration of uncertainties in aerodynamic forces in the early design phase, thereby, the risk of structural redesign can be reduced. | YANG Chao, XIAO ZhiPeng*, WAN ZhiQiang, YAN De & DAI YuTing School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China | 2010 | Science China(Technological Sciences)2010，53，11： | 6 |
| 14 | Evaluation of GNSS Signal-in-Space Continuity:A Weibull-Distribution-Based Method显示文摘Signal-in-space(SIS) continuity is an important performance index of Global navigation satellite system(GNSS). However, the studies on the continuity of GNSS SIS are limited both at home and abroad, and are mainly based on the exponential distribution method. We first employ this method to analyze SIS failures of GPS and BDS, finding that this method is not flexile when describing the characteristic of GNSS SIS failures and the fitting characteristic of this method is not well. Therefore, we propose a method based on Weibull distribution to evaluate the performance of GNSS SIS continuity. Our method is compared with the models of exponential distribution, normal distribution, and Gamma distribution regarding the fitting characteristics of the interruption time interval of GPS SIS, the critical parameter of continuity. Results show that the fitting characteristic of the Weibull-distributionbased method is the best and can be used in various forms to describe reliability problem. Then our method is used to evalute the SIS continuity of BDS and GLONASS and its effectiveness and rationality are validated again. The contributions of our study lie in the development of a practical method for evaluating GNSS SIS continuity and a reference for GNSS performance. | LI Rui ZHENG Shuaiyong WANG Zhipeng TANG Yang SUN Si HUANG Zhigang | 2018 | Chinese Journal of Electronics2018，27，3： | 6 |
| 15 | Adaptive optical focusing through perturbed scattering media with a dynamic mutation algorithm显示文摘Optical imaging through or inside scattering media, such as multimode fiber and biological tissues, has a significant impact in biomedicine yet is considered challenging due to the strong scattering nature of light. In the past decade, promising progress has been made in the field, largely benefiting from the invention of iterative optical wavefront shaping, with which deep-tissue high-resolution optical focusing and hence imaging becomes possible. Most of the reported iterative algorithms can overcome small perturbations on the noise level but fail to effectively adapt beyond the noise level, e.g., sudden strong perturbations. Reoptimizations are usually needed for significant decorrelation to the medium since these algorithms heavily rely on the optimization performance in the previous iterations. Such ineffectiveness is probably due to the absence of a metric that can gauge the deviation of the instant wavefront from the optimum compensation based on the concurrently measured optical focusing.In this study, a square rule of binary-amplitude modulation, directly relating the measured focusing performance with the error in the optimized wavefront, is theoretically proved and experimentally validated. With this simple rule, it is feasible to quantify how many pixels on the spatial light modulator incorrectly modulate the wavefront for the instant status of the medium or the whole system. As an example of application, we propose a novel algorithm, the dynamic mutation algorithm, which has high adaptability against perturbations by probing how far the optimization has gone toward the theoretically optimal performance. The diminished focus of scattered light can be effectively recovered when perturbations to the medium cause a significant drop in the focusing performance, which no existing algorithms can achieve due to their inherent strong dependence on previous optimizations. With further improvement, the square rule and the new algorithm may boost or inspire many applications, such as high-resolution optical imaging and stimulation, in instable or dynamic scattering environments. | HUANHAO LI CHI MAN WOO TIANTING ZHONG ZHIPENG YU YUNQI LUO YUANJIN ZHENG XIN YANG HUI HUI PUXIANG LAI | 2021 | Photonics Research2021，9，2： | 6 |
| 16 | Characteristics of stemflow for sand-fixed shrubs in Mu Us sandy land, Northwest China显示文摘Little work has been done on stemflow for desert shrubs in China. This study measured stemflow in two shrubs of Salix psammophila C. Wang et Chang Y. Yang and Artemisia sphaerocephala Krasch in Mu Us sandy land and established a relationship between stemflow and canopy characteristics, rainfall amount and intensity. During the experimental period, the amount of stemflow for S. psammophila and A. sphaerocephala accounted for 7.6% and 2.7% of the gross rainfall respectively. Statistical analysis showed that there was a significant positive linear correlation between rainfall and stemflow for the two shrubs; while the relationship between stemflow percentage and rainfall suggested that there existed a rainfall depth threshold of 3―5 mm for S. psammophila and 5―7 mm for A. sphaerocephala. Stemflow percentage positively increased with rainfall depth increasing before the rainfall depth threshold values had been reached but showed stability after the threshold. A stepwise regression analysis suggested that the shrubs with more branches, larger crown volume and smaller branch angle inclination tended to collect more volumes of stemflow. Moreover, stemflow amount and percentage increased with the maximum rain intensity increasing in 10 minutes (I10) and the stemflow percentage tended to increase quickly with I10 when it was less than 3.0 mm h-1 for S. psammophila and 2.0 mm h-1 for A. sphaero- cephala, and then showed stable trend with increasing of I10. | YANG ZhiPeng LI XiaoYan LIU LianYou WU JianJun HASI Eerdun SUN YongLiang | 2008 | Chinese Science Bulletin2008，53，14： | 6 |
| 17 | FDTD for plasmonics:Applications in enhanced Raman spectroscopy显示文摘The exact electromagnetic enhancement mechanism behind SERS,TERS,HERS and SHINERS is one of the issues focused on in the study of enhanced Raman spectroscopy.The three dimensional finite difference time domain method(3D-FDTD),which is widely used in nanoplasmonic simulations,not only provides us with a powerful numerical tool for theoretical studies of the ERS electromagnetic enhancement mechanism,but also serves as a useful tool for the design of ERS-active systems with higher sensitivities and spectral spatial resolution.In this paper,we first introduce the fundamental principles of FDTD algorithms,and then the size-dependent dielectric function of dispersive metallic material is discussed.A comparative study of FDTD and rigorous Mie evaluations of electromagnetic fields in the vicinity of a system of self-similar nanospheres shows an excellent correlation between the two computational methods,directly confirming the validity and accuracy of 3D-FDTD simulations in ERS calculations.Finally,we demonstrate,using a TERS calculation as an example,that the non-uniform mesh method can be more computationally efficient without loss of accuracy if it is applied correctly. | YANG ZhiLin LI QianHong RUAN FangXiong LI ZhiPeng REN Bin XU HongXing TIAN ZhongQun | 2010 | Chinese Science Bulletin2010，55，24： | 6 |
| 18 | Breeding for Resistance to Tomato Bacterial Diseases in China:Challenges and Prospects显示文摘Four bacterial diseases including bacterial canker caused by Clavibacter michiganensis subsp. michiganensis, bacterial speck caused by Pseudomonas syringae pv. tomato, bacterial spot caused by at least four Xanthomonas species, and bacterial wilt caused by Ralstonia solanacearum are among the most devastating diseases in tomato(Solanum lycopersicum) production in China. However, almost no commercial cultivars currently growing in the country are resistant to these four bacterial diseases because little effort has been devoted to breeding for resistance. In addition,the existence of great natural variation in each pathogen and the quantitative inheritance of resistance add to the difficulties of developing cultivars with resistance to these diseases. In the past 20 years, molecular markers tightly linked to genes conferring resistance to these four bacterial diseases have been identified or gene-based markers have been developed, which may circumvent some of the problems associated with phenotypic selection for resistance to multiple bacterial pathogens and races. Here we present a review on current status of studies on these diseases and discuss the promise of new technologies in breeding for resistance to these bacterial diseases in China. | WANG Yuqing ZHANG Yaxian GAO Zhipeng YANG Wencai | 2018 | Horticultural Plant Journal2018，4，5： | 5 |
| 19 | Geospatial Service Web:towards integrated cyberinfrastructure for GIScience显示文摘A geospatial cyberinfrastructure is needed to support advanced GIScience research and education activities.However,the heterogeneous and distributed nature of geospatial resources creates enormous obstacles for building a unified and interoperable geospatial cyberinfrastructure.In this paper,we propose the Geospatial Service Web(GSW)to underpin the development of a future geospatial cyberinfrastructure.The GSW excels over the traditional spatial data infrastructure by providing a highly intelligent geospatial middleware to integrate various geospatial resources through the Internet based on interoperable Web service technologies.The development of the GSW focuses on the establishment of a platform where data,information,and knowledge can be shared and exchanged in an interoperable manner.Theoretically,we describe the conceptual framework and research challenges for GSW,and then introduce our recent research toward building a GSW.A research agenda for building a GSW is also presented in the paper. | GONG Jianya WU Huayi ZHANG Tong GUI Zhipeng LI Zhenlong YOU Lan SHEN Shengyu ZHENG Jie GENG Jing QI Kunlun YANG Wenjing LI Zhenqiang YU Jingmin | 2012 | Geo-Spatial Information Science2012，15，2： | 5 |
| 20 | Gravimetric analysis for PM_(2.5) mass concentration based on year-round monitoring at an urban site in Beijing显示文摘Daily PM_(2.5)(particulate matter with an aerodynamic diameter of below 2.5 μm) mass concentrations were measured by gravimetric analysis in Chinese Research Academy of Environmental Sciences(CRAES), in the northern part of the Beijing urban area, from December 2013 to April 2015. Two pairs of Teflon(T1/T2) and Quartz(Q1/Q2) samples were obtained, for a total number of 1352 valid filters. Results showed elevated pollution in Beijing,with an annual mean PM_(2.5)mass concentration of 102 μg/m^3. According to the calculated PM_(2.5)mass concentration, 50% of our sampling days were acceptable(PM_(2.5)< 75 μg/m^3), 30% had slight/medium pollution(75–150 μg/m^3), and 7% had severe pollution(> 250 μg/m^3). Sampling interruption occurred frequently for the Teflon filter group(75%) in severe pollution periods,resulting in important data being missing. Further analysis showed that high PM_(2.5)combined with high relative humidity(RH) gave rise to the interruptions. The seasonal variation of PM_(2.5)was presented, with higher monthly average mass concentrations in winter(peak value in February, 422 μg/m^3), and lower in summer(7 μg/m^3 in June). From May to August, the typical summer period, least severe pollution events were observed, with high precipitation levels accelerating the process of wet deposition to remove PM_(2.5). The case of February presented the most serious pollution, with monthly averaged PM_(2.5)of 181 μg/m^3 and 32% of days with severe pollution. The abundance of PM_(2.5)in winter could be related to increased coal consumption for heating needs. | Yanli Wang Wen Yang Bin Han Wenjie Zhang Mindong Chen Zhipeng Bai | 2016 | Journal of Environmental Sciences2016，28，2： | 5 |
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