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Prevalence and Trends of Birth Defects—Five Counties,Shanxi Province,China,2003–2022

2002年

作者： richard Arnold Johnson Dean w. wichern

来源：畅想之星图书光盘版（南... 评论

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China CDC weekly 2023年第36期5卷 797-803页

作者： Duoduo wang Zhijiao Song Yali Zhang le Zhang lei Jin Aiguo Ren Zhiwen Li Jufen Liu Institute of Reproductive and Child Health/National Health Commission Key Laboratory of Reproductive Health Peking UniversityBeijingChina Department of Epidemiology and Biostatistics School of Public HealthPeking UniversityBeijingChina Department of Health Education Shanxi Women and Children Health HospitalTaiyuan CityShanxi ProvinceChina

Summary what is already known about this topic?The Shanxi Province,located in northern China,holds the highest prevalence of birth defects(BDs)across the *** the implementation of a nationwide folic acid supplementation program in 2009,a significant reduction of 53.89%in the prevalence of neural tube defects(NTDs)was observed in Shanxi from 2012 to 2017.

关键词： nationwide holds Shanxi

A Comparative Study of The Regular Pattern of Syndrome and Treatment of Lung-intestine Related Diseases in Ancient and Modern Medical Cases Based on Data Mining

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world Journal of Traditional Chinese Medicine 2016年第1期2卷 62-67页

作者： Fang-Fang Mo le-Peng wang Si-Hua Gao Department of Diabetes Research Center Beijing University of Chinese Medicine

Objective: To analyze the similarities and differences of the applications of "the lung and large intestine being interior-exteriorly related"between the ancient and modern clinical practices, and to reveal the theory ***: Based on the ancient and modern medical cases database, 245 ancient medical records and 373 modern medical records were studied with the general statistical description and analysis of association rules, and the results were compared to summarize the similarities and differences of the regular pattern of syndrome and treatment on lung-large intestine related diseases in ancient and modern medical ***: In modern medical cases, intestinal diseases appeared with the main symptom of constipation due to deficiency of lung qi and qi stagnation of large intestine were always treated by purgation together with replenishing and restoring lung qi. In ancient medical cases, large intestine heat was always caused by lung heat and a variety of diarrhea symptoms appeared. They were always treated by clearing heat and moistening lungs. In addition, the symptom of bound stool caused by qi stagnation of large intestine due to lung qi stagnation was always treated by lowering lung qi to regulate and smooth large intestine qi. And Armeniae Amarum Semen was used by both as a core medicinal ***: Ascending-descending of qi movement is the core of the lung and large intestine relationship. In other words, the lung and the large intestine communicate through qi.

关键词： Medical cases The lung and large intestine being interior-exteriorly related Lung-large intestine related diseases The regular pattern of syndrome and treatment Comparative study

FPGA Implementation of MIMO for Visible Light Communication

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FPGA Implementation of MIMO for Visible Light Communication

作者： richard Mo 上海交通大学

学位级别：硕士

As the radio frequency（RF） spectrum gets more and more congested with our constant use of wi-Fi and 3G/4G, newer systems are being designed to alleviate if not replace some older ones. Visible Light Communication（VLC）, a system in which information uses visible light as the media to transmit information has been showing promising results for indoor use. Combined with the technologies that are used in RF, it can provide high performance for relatively low costs. Techniques such as the orthogonal frequency division multiplexing modulation and multiple input multiple output（MIMO） can be adapted to work with visible light, they might not necessarily work without adjustment as the characteristics of RF waves and visible light waves *** part of a project to implement a VLC system on a FPGA hardware platform, the MIMO aspect is studied from a VLC point of view, which differs slightly from its RF counterpart. As the SNR is expected to be sufficiently high, a zero-forcing decoder with ordered successive interference cancellation is implemented. To do so, the pseudoinverse of the channel matrix needs to be computed. This is a complex process and can be done via different methods. we opt for the method using the singular value decomposition of a matrix to determine its pseudoinverse. Since resources available on hardware are more restricted than with software, hardware-efficient algorithms are used to get the most of FPGAs.

关键词： visible light communication multiple input multiple output spatial multiplexing V-BLAST zero-forcing

Viral inactivation by light

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eLight 2022年第1期2卷 237-254页

作者： Mohammad Sadraeian le Zhang Farzaneh Aavani Esmaeil Biazar Dayong Jin Present Address:Institute for Biomedical Materials and Devices(IBMD) Faculty of ScienceUniversity of Technology SydneySydneyNSW 2007Australia Department of Oral and Maxillofacial Surgery Division of Regenerative Orofacial MedicineUniversity Hospital Hamburg-Eppendorf20251 HamburgGermany Department of Biomedical Engineering Islamic Azad UniversityTonekabon BranchTonekabonIran UTS‑SUStech Joint Research Centre for Biomedical Materials&Devices Department of Biomedical EngineeringCollege of EngineeringSouthern University of Science and TechnologyShenzhenGuangdongChina

Nowadays,viral infections are one of the greatest challenges for medical sciences and human *** antiviral compounds and chemical inactivation remain inadequate,physical approaches based on irradiation provide new potentials for prevention and treatment of viral infections,without the risk of drug resistance and other unwanted side *** across the electromagnetic spectrum can inactivate the virions using ionizing and non-ionizing *** review highlights the anti-viral utility of radiant methods from the aspects of ionizing radiation,including high energy ultraviolet,gamma ray,X-ray,and neutron,and non-ionizing photo-inactivation,including lasers and blue light.

关键词： Antiviral therapy Enveloped virus Photo-inactivation Ionizing radiation Nuclear radiations

挖泥船施工作业三维可视化系统优化设计与应用

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中国港湾建设 2024年第8期44卷 93-98页

作者：庞景墩贺海涛林直郑昊乐中交疏浚技术装备国家工程研究中心有限公司上海200082

随着疏浚工程和疏浚业务的不断发展,对于疏浚施工过程监视效果要求也越来越高。针对现有挖泥船疏浚过程中三维可视化监视存在显示效果差、精度不高等问题,基于Unity3D引擎,设计并开发一套具有普适性的挖泥船施工作业三维可视化系统,实... 详细信息

随着疏浚工程和疏浚业务的不断发展,对于疏浚施工过程监视效果要求也越来越高。针对现有挖泥船疏浚过程中三维可视化监视存在显示效果差、精度不高等问题,基于Unity3D引擎,设计并开发一套具有普适性的挖泥船施工作业三维可视化系统,实现挖泥船关键疏浚机具动作驱动、水下地形生成及渲染、地形实时重构的三维可视化显示。通过实船应用验证,该系统可以有效提高施工效率和质量,提升施工精度,减少漏挖、超挖现象的发生,具有重要的工程应用价值。

关键词：挖泥船三维可视化 Unity3D 地形重构疏浚工程

Incorporation of N-doped biochar into zero-valent iron for efficient reductive degradation of neonicotinoids:mechanism and performance

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Biochar 2023年第1期5卷 1343-1359页

作者： Xiangying Li Xiangyu Zhang Peng Zhang Xinhua wang Hongwen Sun Yongyue Lu le Jiao Chenglan Liu National Key Laboratory of Green Pesticide South China Agricultural University483#Wushan RoadTianhe DistrictGuangzhou 510642China MOE Key Laboratory of Pollution Processes and Environmental Criteria College of Environmental Science and EngineeringNankai University38#Tongyan RoadHaihe Education ParkJinnan DistrictTianjin 300350China Agro-Environmental Protection Institute Ministry of Agriculture and Rural Affairs31#Fukang RoadNankai DistrictTianjin 300191China

The extensive use of neonicotinoids on food crops for pest management has resulted in substantial environmental *** is imperative to develop an effective remediation material and technique as well as to determine the evolution pathways of ***,novel ball-milled nitrogen-doped biochar(NBC)-modified zero-valent iron(ZVI)composites(named MNBC-ZVI)were fabricated and applied to degrading *** on the characterization results,NBC incorporation introduced N-doped sites and new allying heterojunctions and achieved surface charge redistribution,rapid electron transfer,and higher hydrophobicity of ZVI *** a result,the interaction between ZVI particles and thiamethoxam(a typical neonicotinoid)was improved,and the adsorption-desorption and reductive degradation of thiamethoxam and·H generation steps were ***-ZVI could rapidly degrade 100%of 10 mg·L^(−1) thiamethoxam within 360 min,its reduction rate constant was 12.1-fold greater than that of pristine ZVI,and the electron efficiency increased from 29.7%to 57.8%.This improved reactivity and selectivity resulted from increased electron transfer,enhanced hydrophobicity,and reduced accumulation of iron ***,the degradation of neonicotinoids occurred mainly via nitrate reduction and dichlorination,and toxicity tests with degradation intermediates revealed that neonicotinoids undergo rapid ***,MNBCZVI also presented favorable tolerance to various anions,humic acid,wastewater and contaminated soil,as well as high *** work offers an efficient and economic biochar-ZVI remediation technology for the rapid degradation and detoxification of neonicotinoids,significantly contributes to knowledge on the relevant removal mechanism and further advances the synthesis of highly reactive and environmentally friendly materials.

关键词： Zero-valent iron(ZVI) Ball milling N-doped biochar Neonicotinoid degradation Electron efficiency

太行山中南段测鱼地区中新生代构造变形及构造应力场

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河北地质大学学报 2024年第4期47卷 1-10页

作者：张祥信申方乐李伟王芳秦巨富河北地质大学河北省战略性关键矿产资源重点实验室河北石家庄050031 河北地质大学地球科学学院河北石家庄050031 河北地质大学华信学院河北石家庄050700

太行山中南段测鱼地区中新生代构造变形强烈,构造形迹以断裂构造为主。以测鱼地区广泛发育的共轭剪节理和断层为研究对象,在详细的野外构造观测和解析基础上,应用共轭剪节理统计和断层滑动矢量数据分析,对研究区中新生代构造应力场进行... 详细信息

太行山中南段测鱼地区中新生代构造变形强烈,构造形迹以断裂构造为主。以测鱼地区广泛发育的共轭剪节理和断层为研究对象,在详细的野外构造观测和解析基础上,应用共轭剪节理统计和断层滑动矢量数据分析,对研究区中新生代构造应力场进行了反演。构造解析表明,测鱼地区中新生代经历了3期构造应力场的演化,分别是中晚侏罗世Nw-SE向挤压、早白垩世Nw-SE向伸展和古新世-始新世NE-Sw向挤压。根据区域构造演化特征,推测中晚侏罗世Nw-SE向挤压应力场可能与古太平洋板块由Nw向亚洲大陆东部俯冲消减有关;早白垩世Nw-SE向伸展应力场与东亚活动陆缘的弧后伸展有关,形成于华北克拉通破坏阶段;古新世-始新世NE-Sw向挤压应力场可能与太平洋板块的俯冲方向由NNw向往Nww向逆时针偏转有关。测鱼地区的上述3期构造应力场记录了太行山中南段中新生代构造演化和动力学背景信息。

关键词：构造变形构造应力场构造演化中新生代太行山中南段

H-bonding interactions enable a 3D pillared cobalt(Ⅱ) coordination polymer for touchless finger moisture detection

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Tungsten 2023年第1期5卷 109-117页

作者： Hao Dong le-Xi Zhang Heng Xu Yan-Yan Yin Xing-Bai Zhao Li-Jian Bie School of Materials Science and Engineering Tianjin Key Lab for Photoelectric Materials and DevicesKey Laboratory of Display Materials and Photoelectric Devices(Ministry of Education)National Demonstration Center for Experimental Function Materials EducationTianjin University of TechnologyTianjin 300384China Department of Environmental Science and Engineering Nankai University Binhai CollegeTianjin 300270China

Coordination polymers(CPs) are emerging as the next generation of macromolecule materials in many industrial and technological applications,***/humidity *** design of CP-based sensors with high performance and low cost is of significance,but this work is still in the infancy *** this contribution,a new one dimensional(1D) CP has been successfully synthesized by a simple solvent evaporation method at room temperature,namely [Co(DPP)(H_(2)O)_(2)]n·(TCA)2(H_(2)O)_(4)(named as Co-1,HTCA=3-thiophenezoic acid,DPP=1,3-di(4-pyridyl)propane).The Co-1 structure contains abundant H-bonding interactions,weaving it from 1D chain structure into three dimensional(3D) pillared-layer *** an impedimetric humidity sensing material,this CP exhibits short response time,small hysteresis,excellent repeatability,and good stability in the working range of 11%-97% relative humidity(RH).Furthermore,it also shows excellent performance in monitoring the moisture content of human finger *** analyzing the complex impedance spectra,the humidity sensing mechanism of Co-1 sensor was expounded at different RH ranges.

关键词： Cobalt Coordination polymer H-bonding interactions Humidity sensor Finger detection

Monthly composites from Sentinel-1 and Sentinel-2 images for regional major crop mapping with Google Earth Engine

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Journal of Integrative Agriculture 2021年第7期20卷 1944-1957页

作者： LUO Chong LIU Huan-jun LU Lii-ping LIU Zheng-rong KONG Fan-chang ZHANG Xin-le Northeast Institute of Geography and Agroecology Chinese Academy of SciencesChangchun 130102P.R.China School of Public Adminstration and Law Northeast Agricultural UniversityHarbin 150030P.R.China

Rapid and accurate access to large-scale,high-resolution crop-type distribution maps is important for agricultural management and sustainable agricultural *** to the limitations of remote sensing image quality and data processing capabilities,large-scale crop classification is still *** study aimed to map the distribution of crops in Heilongjiang Province using Google Earth Engine(GEE)and Sentinel-1 and Sentinel-2 *** obtained Sentinel-1 and Sentinel-2 images from all the covered study areas in the critical period for crop growth in 2018(May to September),combined monthly composite images of reflectance bands,vegetation indices and polarization bands as input features,and then performed crop classification using a Random Forest(RF)*** results show that the Sentinel-1 and Sentinel-2 monthly composite images combined with the RF classifier can accurately generate the crop distribution map of the study area,and the overall accuracy(OA)reached 89.75%.Through experiments,we also found that the classification performance using time-series images is significantly better than that using single-period *** with the use of traditional bands only(i.e.,the visible and near-infrared bands),the addition of shortwave infrared bands can improve the accuracy of crop classification most significantly,followed by the addition of red-edge *** common vegetation indices and Sentinel-1 data to the crop classification improved the overall classification accuracy and the OA by 0.2 and 0.6%,respectively,compared to using only the Sentinel-2 reflectance *** analysis of timeliness revealed that when the July image is available,the increase in the accuracy of crop classification is the *** the Sentinel-1 and Sentinel-2 images for May,June,and July are available,an OA greater than 80%can be *** results of this study are applicable to large-scale,high-resolution crop classification and provide key technologies f

关键词： Sentinel-1 Sentinel-2 monthly composites crop mapping Google Earth Engine