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Response surface modeling-based source contribution analysis and VOC emission control policy assessment in a typical ozone-polluted urban Shunde,China

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Journal of Environmental Sciences 2017年第1期29卷 294-304页

作者： Zhiqiang You Yun Zhu Carey Jang Shuxiao Wang Jian Gao Che-Jen lin Minhui li zhenghua Zhu Hao Wei Wenwei Yang Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control College of Environment and EnergySouth China University of TechnologyGuangzhou Higher Education Mega CenterGuangzhou 510006China State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China USEPA/offilce of Air Quality Planning&Standards RTPNC 27711USA Chinese Research Academy of Environmental Sciences Beijing 100012China Department of Civil Engineering Lamar UniversityBeaumontTX 77710-0024USA Guangzhou Urban Environmental Cloud Information Technology R&D Co.Ltd Guangzhou 511400China

To develop a sound ozone（O_3） pollution control strategy,it is important to well understand and characterize the source contribution due to the complex chemical and physical formation processes of O_3.Using the ＂Shunde＂ city as a pilot summer case study,we apply an innovative response surface modeling（RSM） methodology based on the Community Multi-Scale Air Quality（CMAQ） modeling simulations to identify the O_3 regime and provide dynamic analysis of the precursor contributions to effectively assess the O_3 impacts of volatile organic compound（VOC） control strategy.Our results show that Shunde is a typical VOC-limited urban O_3 polluted city.The ＂Jiangmen＂ city,as the main upper wind area during July 2014,its VOCs and nitrogen oxides（NO_x） emissions make up the largest contribution（9.06%）.On the contrary,the contribution from local（Shunde） emission is lowest（6.35%） among the seven neighbor regions.The local VOCs industrial source emission has the largest contribution comparing to other precursor emission sectors in Shunde.The results of dynamic source contribution analysis further show that the local NO_x control could slightly increase the ground O_3 under low（10.00%） and medium（40.00%）reduction ratios,while it could start to turn positive to decrease ground O_3 under the high NO_x abatement ratio（75.00%）.The real-time assessment of O_3 impacts from VOCs control strategies in Pearl River Delta（PRD） shows that the joint regional VOCs emission control policy will effectively reduce the ground O_3 concentration in Shunde.

关键词： O_3 Response surface model Source contribution analysis VOCs control policy

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Immunomodulatory effects of polysaccharides from edible fungus:a review

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Food Science and Human Wellness 2021年第4期10卷 393-400页

作者： zhenghua Yin Zhenhua liang Changqin li Jinmei Wang Changyang Ma Wenyi Kang National R&D Center for Edible Fungus Processing Technology Henan UniversityKaifengHenan 475004China Joint International Research Laboratory of Food&Medicine Resource Function KaifengHenan 475004China Functional Food Engineering Technology Research Center KaifengHenan 475004China

The polysaccharides from edible fungus showed many kinds of biological activities,including anti-tumor,immunomodulatory,anti-inflammatory,anti-diabetes,improving functional constipation activities.In particular,the immunomodulatory effects have been paid more and more attention by scholars,but there was no systematic introduction of their immunomodulatory mechanism.So,this review introduced the immunomodulatory effects and mechanism of edible fungus polysaccharides in recent years,and then the relationships between structure and immunomodulatory effect were also discussed.

关键词： Edible fungus Polysaccharides Immunomodulatory effect Mechanisms-immunomodulatory relationship

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Strong motion observations and recordings from the great Wenchuan Earthquake

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Earthquake Engineering and Engineering Vibration 2008年第3期7卷 235-246页

作者： li Xiaojun Zhou zhenghua Yu Haiyin Wen Ruizhi Lu Dawei Huang Moh Zhou Yongnian Cu Jianwen Institute of Engineering Mechanics China Earthquake Administration Harbin 150080 China National Earthquake Infrastructure Service Beijing China California Geological Survey Sacramento USA Yunnan Provincial Earthquake Administration Kunming China

The National Strong Motion Observation Network System （NSMONS） of China is briefly introduced in this paper. The NSMONS consists of permanent free-field stations, special observation arrays, mobile observatories and a network management system. During the Wenchuan Earthquake, over 1,400 components of acceleration records were obtained from 460 permanent free-field stations and three arrays for topographical effect and structural response observation in the network system from the main shock, and over 20,000 components of acceleration records from strong aftershocks occurred before August 1, 2008 were also obtained by permanent free-field stations of the NSMONS and 59 mobile instruments quickly deployed after the main shock. The strong motion recordings from the main shock and strong aftershocks are summarized in this paper. In the ground motion recordings, there are over 560 components with peak ground acceleration （PGA） over 10 Gal, the largest being 957.7 Gal. The largest PGA recorded during the aftershock exceeds 300 Gal.

关键词： Wenchuan Earthquake strong motion observation network mobile observation observation array strong motion record PGA

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Construction of single-chromosome DNA library from lilium regale Wilson

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Chinese Science Bulletin 1998年第5期43卷 434-439页

作者： Benyuan Dang Zanmin Hu Yihua Zhou lihua Cui Lanlan Wang liangcai li zhenghua Chen Chinese Acad Sci Inst Genet Beijing 100101 Peoples R China

A protocol of simple rapid microdissection of single-chromosome, amplification and cloning of its DNA from lilium regale Wilson is described. Single-chromosome, microdissected by micromanipulator, was put into a 0 5 mL Eppendorf tube and digested with Sau3A, and then the Sau3A linker adaptors were ligated to the ends of DNA fragments. After 2 rounds of PCR amplification with one chain of linker adaptor as primer, the PCR products thus obtained have a length of 300-2 500 base pairs (bp) with predominant fragments at about 1 000 bp. Southern blot analysis confirmed that the PCR products originated from the genome of lilium regale Wilson. By cloning the amplification products from the second round of PCR, single-chromosome DNA library was constructed, in which about as many as 100 000 recombinant clones were produced. A total number of 84 clones were analysed, and it was revealed that the inserts ranged in size from 300 to 1 800 bp, with an average of 780 bp. Compared with the methods described in other literature, this protocol, eliminating the need for enzymatic digestion and ligating micromanipulation of chromosomal DNA in nanoliter volumes, permits the efficient amplification of single chromosome (not tens of chromosomes as reported before) and the fragments (780 bp in average) cloned in this study are longer than those reported before (650 bp in average).

关键词： lilium regale wilson single=chromosome dna library.

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具有里程碑意义的新时代十年

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当代中国史研究 2022年第6期29卷 4-13页

作者：李正华中国社会科学院大学当代中国研究所

在全党全国各族人民迈上全面建设社会主义现代化国家新征程、向第二个百年奋斗目标进军的关键时刻,2022年10月,中国共产党第二十次全国代表大会在北京隆重举行。大会高举中国特色社会主义伟大旗帜,坚持马克思列宁主义、毛泽东思想、邓... 详细信息

在全党全国各族人民迈上全面建设社会主义现代化国家新征程、向第二个百年奋斗目标进军的关键时刻,2022年10月,中国共产党第二十次全国代表大会在北京隆重举行。大会高举中国特色社会主义伟大旗帜,坚持马克思列宁主义、毛泽东思想、邓小平理论、“三个代表”重要思想、科学发展观,全面贯彻习近平新时代中国特色社会主义思想,深入分析了国际国内形势,回顾总结了过去五年的工作和新时代十年的伟大变革、坚持和发展中国特色社会主义取得的重大成就和宝贵经验,阐述了开辟马克思主义中国化时代化新境界、中国式现代化的中国特色和本质要求等重大问题,对全面建设社会主义现代化国家、全面推进中华民族伟大复兴进行了战略谋划,对统筹推进“五位一体”总体布局、协调推进“四个全面”战略布局做出了全面部署。

关键词：习近平新时代中国特色社会主义思想 “四个全面”战略中国式现代化全国代表大会全面贯彻战略谋划国际国内形势科学发展观

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中国特色应急管理制度体系构建:现实基础、存在问题与发展策略

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管理世界 2022年第1期38卷 138-143页

作者：张铮李政华吉林大学行政学院

应急管理是维护和实现国家安全与公共安全的压舱石,而制度是行政体系运转的关键,构建系统完备的应急管理制度体系也是实现国家治理体系与治理能力现代化的重要内容。新中国成立以来,应急管理制度的发展经历了3个阶段:单灾种应急管理(194... 详细信息

应急管理是维护和实现国家安全与公共安全的压舱石,而制度是行政体系运转的关键,构建系统完备的应急管理制度体系也是实现国家治理体系与治理能力现代化的重要内容。新中国成立以来,应急管理制度的发展经历了3个阶段:单灾种应急管理(1949~2003年)、作为整体的应急管理体系建立(2003~2018年)与中国特色应急管理制度体系构建(2018年至今)。通过分析机构职能划分、应急管理预案与协调联动机制、多元主体参与、应急管理法治化,大数据科技使用与管理五方面存在的问题与挑战,结合我国中国共产党的全面集中统一领导、以人为中心的公共安全治理理念﹑应急管理部的构建与大部制改革的推进等中国特色社会主义制度的优越性,提出具有针对性的中国特色社会主义应急管理制度体系构建与发展策略。

关键词：中国特色应急管理制度体系国家治理

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基于因子图的INS/UWB室内行人紧组合定位技术

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仪器仪表学报 2022年第5期43卷 32-45页

作者：李倩蒋正华孙炎奔粤阳哈尔滨工程大学智能科学与工程学院哈尔滨150001

针对室内复杂应用场景下待定位行人接收到的超宽带(UWB)测距信息数量不确定问题,提出一种基于因子图的INS/UWB室内行人紧组合定位算法,实现对动态随遇接入与退出的UWB量测信息有效融合。首先,基于室内行人运动模型以及UWB量测模型构建IN... 详细信息

针对室内复杂应用场景下待定位行人接收到的超宽带(UWB)测距信息数量不确定问题,提出一种基于因子图的INS/UWB室内行人紧组合定位算法,实现对动态随遇接入与退出的UWB量测信息有效融合。首先,基于室内行人运动模型以及UWB量测模型构建INS/UWB紧组合因子图模型,由于对行人位置与速度同时进行建模估计,导致该因子图模型含有环结构。在此基础上,针对有环因子图模型基于和积算法(SPA)通过两次迭代推导因子图中各节点间消息传递算法,计算行人位置与速度的后验概率密度。进一步,针对特殊量测矢量条件下因子图算法定位误差跳变问题,提出一种基于坐标变换的因子图改进方法,从而有效提高行人位置与速度估计精度。仿真结果表明,本文提出的INS/UWB紧组合定位算法可以有效融合动态随遇接入与退出的UWB测距信息。在满足计算量与内存消耗需求的前提下,与变结构多模型扩展卡尔曼滤波(EKF)相比,本文提出算法的定位精度与速度估计精度可以分别提高14.94%与56.42%。

关键词：室内定位惯性导航系统超宽带紧组合因子图

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MICROFRACTRUE MECHANISM OF TA2/A3 EXPLOSIVE CLADDING INTERFACE

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中国有色金属学会会刊：英文版 1995年第2期5卷 113-119页

作者： Yang, Yang Zhang, Xinming (Department of Materials Science and Engineering,Central-South University of Technology,Changsha 410083)li, zhenghua li,Qingyun (North-West Institute for Nonferrous Metal Research) Central-South Univ of Technology Changsha China

ＭＩＣＲＯＦＲＡＣＴＲＵＥＭＥＣＨＡＮＩＳＭＯＦＴＡ２／Ａ３ＥＸＰＬＯＳＩＶＥＣＬＡＤＤＩＮＧＩＮＴＥＲＦＡＣＥ￥Ｙａｎｇ，Ｙａｎｇ；Ｚｈａｎｇ，Ｘｉｎｍｉｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｅｒｉａｌｓＳｃｉｅｎｃ... 详细信息

ＭＩＣＲＯＦＲＡＣＴＲＵＥＭＥＣＨＡＮＩＳＭＯＦＴＡ２／Ａ３ＥＸＰＬＯＳＩＶＥＣＬＡＤＤＩＮＧＩＮＴＥＲＦＡＣＥ￥Ｙａｎｇ，Ｙａｎｇ；Ｚｈａｎｇ，Ｘｉｎｍｉｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｅｒｉａｌｓＳｃｉｅｎｃｅａｎｄＥｎｇｉｎｅｅｒｉｎｇ，Ｃ...

关键词： microfracture mechanism explosive cladding interface

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Implementing geostatistical analysis to study spatio-temporal distribution patterns of swimming crabs(Portunus trituberculatus)

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Acta Oceanologica Sinica 2021年第6期40卷 67-74页

作者： Wenbin Zhu Kaner Lu Zhanhui Lu Qian Dai zhenghua li Yongdong Zhou Siqi Huang Haichen Zhu Guocheng Cui Zhejiang Marine Fisheries Research Institute Zhoushan 316021China Scientific Observing and Experimental Station of Fishery Resources Key Fishing Grounds of Ministry of AgricultureZhoushan 316021China Key Laboratory of Sustainable Utilization of Marine Fishery Resources of Zhejiang Province Zhoushan 316021China Zhejiang Ocean University Zhoushan 316021China Geological Environment Monitoring Center of Zhejiang Province Hangzhou 310007China

This study attempted to compare the performance of local polynomial interpolation,inverse distance weighted interpolation,and ordinary kriging in studying distribution patterns of swimming crabs.Cross-validation was used to select the optimum method to get distribution results,and kriging was used for making spatial variability analysis.Data were collected from 87 sampling stations in November of 2015(autumn)and February(winter),May(spring)and August(summer)of 2016.Results indicate that swimming crabs widely distributed in autumn and summer:in the summer,they were more spatially independent,and resources in each sampling station varied a lot;in the winter and spring,the abundance of crabs was much lower,but the individual crab size was bigger,and they showed the patchy and more concentrative distribution pattern,which means they were more spatially dependent.Distribution patterns were in accordance with ecological migration features of swimming crabs,which were affected by the changing marine environment.This study could infer that it is applicable to study crab fishery or even other crustacean species using geostatistical analysis.It not only helps practitioners have a better understanding of how swimming crabs migrate from season to season,but also assists researchers in carrying out a more comprehensive assessment of the fishery.Therefore,it may facilitate advancing the implementation in the pilot quota management program of swimming crabs in northern Zhejiang fishing grounds.

关键词： swimming crabs(Portunus trituberculatus) geostatistical analysis ordinary kriging spatio-temporal distributions Zhejiang coastal waters of China

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Chromosome microdissection by laser microbeam, chromosomal fragment isolation and amplification in vitro in barley (Hordeum vulgare L.)

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Chinese Science Bulletin 1998年第10期43卷 851-855页

作者： Huai Wang Yihua Zhou Benyuan Dang Zanmin Hu Lanlan Wang liangcai li zhenghua Chen Acad Sinica Inst Genet Beijing 100101 Peoples R China

A method for microdissection, isolation and amplification of plant chromosomal fragments using laser microbeam and a glass microneedle was established. Firstly, 7H chromosome of barley (Hordeum vulgare L.) was dissected by Nd: YAG laserbeam with suitable parameters and the fragment comprising a satellite was isolated with a glass microneedle which was fixed on a micromanipulator. Then, the chromosomal fragment DNA was amplified by LA_PCR (linker adaptor PCR) for two rounds. The size of the DNA fragments of PCR products varied from 500-3 000 bp and the PCR products originated from the genome of barley were verified by Southern hybridization. Compared with previous reports, there are some advantages in this research. The performance is easier, the dissection is more precise and the cost is low. It also permits efficient amplification with only one single chromosome fragment. Laser microbeam_glass microneedle method may be useful in the microdissection of special chromosome regions, especially in plants with middle or small chromosomes.

关键词： Hordeum vulgare L. chromosome microdissection laser microbeam LA_PCR.

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