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Chemical Research in Chinese Universities 2009年第3期25卷 273-278页

作者： A li-ta DUAN li-mei XU xiu-ting liU Shu-qin College of Chemistry Inner Mongolia University for Nationalities Tongliao 028000 P.R. China

An iron（Ⅲ） complex [Fe^Ⅲ（Tpz^Me2）（Hpz^Me2）Cl2]（1） has been synthesized at a low temperature, which contains tripodal ligand, namely, the anionic hydrotris-3,5-dimethyl-pyrazolylborate（Tpz^Me2）. A series of iron（Ⅲ） catecholate complexes 2-5 has been obtained via the reaction of compound 1 with catecholate or substituted catecholates. These complexes were characterized by X-ray crystallographic analysis, mass spectrometry and elemental analysis, and the results show that TpzMe2 ligand has the beneficial effect on the stabilization of iron（Ⅲ） catecholate complexes.

关键词： Iron complex Hydrotris-3,5-dimethyl-pyrazolylborate Catecholate

Acute Pesticide Poisoning in Jiangsu Province, China, from 2006 to 2015

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Biomedical and Environmental Sciences 2017年第9期30卷 695-700页

作者： WANG Bo Shen CHEN lin li xiu ting XU Ming ZHU Bao li ZHANG Juan Key Laboratory of Environmental Medicine Engineering of Ministry of Education School of Public Health Southeast University Department of Prevention and Control for Occupational Disease Jiangsu Provincial Center for Disease Prevention and Control Nanjing Prevention and Treatment Center for Occupational Diseases

This study aimed to investigate the characteristics of pesticide poisoning in Jiangsu Province, China, and to provide a scientific basis for developing effective interventional measures and preventive strategies. From 2006 to 2015, a total of 35,308 cases of pesticide poisoning were reported in Jiangsu Province. Non‐occupational poisoning accounted for 73.79% of all poisoning cases. A comparison of the data collected before（2006） and after（2015） this study showed a decrease in non‐occupational pesticide poisoning. Pesticide poisoning showed an age central tendency of 30 to 44 years, area central tendency for northern Jiangsu, and seasonal central tendency of occupational pesticide poisoning in autumn. Pesticide poisoning remains a major health concern in China. Government agencies together with scientists should focus their efforts on the prevention of potential threats to vulnerable groups such as the elderly, women, and children.

关键词： from 2006 to 2015 Acute Pesticide Poisoning in Jiangsu Province China

Association between Plasma Metal Levels and Diabetes Risk： a Case-control Study in China

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Biomedical and Environmental Sciences 2017年第7期30卷 482-491页

作者： li xiu ting YU Peng Fei GAO Yan GUO Wen Hui WANG Jun liU Xin GU Ai Hua JI Gui Xiang DONG Qiu WANG Bo Shen CAO Ying ZHU Bao li XIAO Hang Nanjing Prevention and Treatment Genter for Occupational Disease Nanjing 210042 Jiangsu China Key Lab of Modern Toxicology Ministry of Education Department of Toxicology School of Public Health Nanjing Medical University Nanjing 211166 Jiangsu China Suzhou Municipal Center for Disease Prevention and Control Suzhou 215003 Jiangsu China School of Public Health Nanjing Medical University Nanjing 211166 Jiangsu China Jiangsu Provincial Center for Disease Control and Prevention Nanjing 210028 Jiangsu China Ministry of Environmental Protection Nanjing Institute of Environmental Sciences Nanjing 210042 Jiangsu China Department of ENT Huai 'an Second People 's Hospital Huai 'an 211700 Jiangsu China

Objective Many metals, some of which have been classified as environmental endocrine disruptors, are used extensively in everyday consumer products and are ubiquitous in our living environment. In the present study, we aimed to explore the associations between the prevalence risk of type 2 diabetes and plasma levels of 20 trace elements as well as those of heavy metals in a Han Chinese population. Methods We conducted a case-control study to investigate the associations between plasma concentrations of 20 metals and diabetes in Jiangsu province. A total of 122 newly diagnosed cases of type 2 diabetes and 429 matched controls were recruited from community physical examinations in Suzhou City of Jiangsu Province. Plasma metal levels were measured by inductively-coupled plasma mass spectrometry. Results After adjusting for confounders, plasma vanadium, chromium, manganese, copper, zinc, arsenic, selenium, strontium, palladium, cadmium, cesium, and barium were associated with diabetes risk （P 〈 0.05）. The adjusted OR increased with increasing concentration of vanadium, manganese, copper, zinc, and cesium. Conclusion Many metals, including manganese, copper, zinc, arsenic, selenium, and cadmium in plasma, are associated with the morbidity of diabetes. Monitoring of environmental metal levels and further studies are urgently needed.

关键词： Metals Diabetes Chromium Arsenic Cadmium

Experiments and modeling of microstructural and mechanical behaviors of laser-welded Ni-based superalloy at high temperatures

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Chinese Journal of Aeronautics 2025年第1期38卷 99-114页

作者： ting HOU Yong li Degang WANG Yuelin WANG Marko VILOTIC School of Mechanical Engineering and Automation Beihang UniversityBeijing 100191China Department of Structure Shenyang Aircraft Designand Research InstituteShenyang 110000China Engineering Center Shenyang Aircraft CorporationShenyang 110000China Faculty of Technical Science University of Novi SadNovi Sad 21102Serbia

The performance of welded Ni-based superalloys at high temperatures is essential to be evaluated due to their particular service environment for aero-engines and high-speed *** tensile properties and related microstructural evolutions such as the carbide precipitate and grain of a laser-welded Ni-based alloy were experimentally and numerically investigated at different temperatures(20,300,500,800℃).The results show that at room temperature,the strength of the Base Material(BM)was slightly smaller,with a difference of less than 1%,than the Welded Material(WM),which can be attributed to the more uniformly distributed needle-shaped carbide precipitates in the WM than those nonuniformly coarser spherical ones in the *** at 300℃ and 500℃,the strength of WM decreased more obviously compared with that of BM due to the more apparent growth of grain:13.52%loss in yield strength in WM alloys as compared with BM alloys at 300℃,and 16.57% at 500℃.At 800℃,the strength of BM and WM both decreased to a similar level due to Dynamic Recrystallization(DRX).However,a much higher elongation was observed for the BM than WM(less than 50%of BM),which can be attributed to the enhanced dislocation accumulation capability of the large spherical carbides along grain boundaries on the fracture surface in ***,a unified model considering the welding effects on both microstructures(dislocation,carbides,and grain)and mechanical properties evolutions at different temperatures was developed and *** on this model,the key temperature ranges(20–600℃)where apparent weakening of strength and uniform plasticity occurs for welded structures were identified,providing a direct guidance for potential structure and process design.

关键词： Ni-based superalloy Microstructure Mechanical properties Constitutive model High temperature

Interpreting hourly mass concentrations of PM_(2.5)chemical components with an optimal deep-learning model

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Journal of Environmental Sciences 2025年第5期151卷 125-139页

作者： Hongyi li ting Yang Yiming Du Yining Tan Zifa Wang State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry(LAPC) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Center for Excellence in Regional Atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China University of Chinese Academy of Sciences Beijing 100049China Shenyang Environmental Monitoring Center Shenyang 110167China

PM_(2.5)constitutes a complex and diversemixture that significantly impacts the environment,human health,and climate ***,existing observation and numerical simulation techniques have limitations,such as a lack of data,high acquisition costs,andmultiple *** limitations hinder the acquisition of comprehensive information on PM_(2.5)chemical composition and effectively implement refined air pollution protection and control *** this study,we developed an optimal deep learning model to acquire hourly mass concentrations of key PM_(2.5)chemical components without complex chemical *** model was trained using a randomly partitioned multivariate dataset arranged in chronological order,including atmospheric state indicators,which previous studies did not *** results showed that the correlation coefficients of key chemical components were no less than 0.96,and the root mean square errors ranged from 0.20 to 2.11μg/m^(3)for the entire process(training and testing combined).The model accurately captured the temporal characteristics of key chemical components,outperforming typical machine-learning models,previous studies,and global reanalysis datasets(such asModern-Era Retrospective analysis for Research and Applications,Version 2(MERRA-2)and Copernicus Atmosphere Monitoring Service ReAnalysis(CAMSRA)).We also quantified the feature importance using the random forest model,which showed that PM_(2.5),PM_(1),visibility,and temperature were the most influential variables for key chemical *** conclusion,this study presents a practical approach to accurately obtain chemical composition information that can contribute to filling missing data,improved air pollution monitoring and source *** approach has the potential to enhance air pollution control strategies and promote public health and environmental sustainability.

关键词： Pm2.5 chemical composition Hourly mass concentration Deep learning Bayesian optimization Feature importance

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基于互联网搜索数据的中国流感监测

系统工程理论与实践 2013年第12期33卷 3028-3034页

作者：李秀婷刘凡董纪昌吕本富中国科学院大学管理学院北京100190 北京银行博士后科研工作站北京100080

流感是第一个实现全球监控的传染性疾病,但传统监控体系发布的数据严重滞后于流感疫情的发展情况,本文探讨了网络搜索数据在流感快速预警方面的作用.研究发现,网络搜索数据中包含了与流感趋势的历史信息相"正交"的有效信息,这部分信息... 详细信息

流感是第一个实现全球监控的传染性疾病,但传统监控体系发布的数据严重滞后于流感疫情的发展情况,本文探讨了网络搜索数据在流感快速预警方面的作用.研究发现,网络搜索数据中包含了与流感趋势的历史信息相"正交"的有效信息,这部分信息反映了流感疫情的当期变异,因而搜索数据可以弥补历史信息难以解释数据新变异的缺点.但是,网络搜索信息并不能完全替代历史信息,两种信息具有一定程度的互补性,历史信息能够较好地预测流感趋势,而搜索信息保障了对新变化的即时预测(now-casting)的准确性.因而,联合使用以上.两种信息将会达到较理想的监测效果.

关键词：网络搜索流感监测流感预警主成分分析

CT whole lung radiomic nomogram:a potential biomarker for lung function evaluation and identification of COPD

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Military Medical Research 2025年第1期12卷 36-47页

作者： Tao-Hu Zhou xiu-xiu Zhou Jiong Ni Yan-Qing Ma Fang-Yi Xu Bing Fan Yu Guan Xin-Ang Jiang Xiao-Qing lin Jie li Yi Xia Xiang Wang Yun Wang Wen-Jun Huang Wen-ting Tu Peng Dong Zhao-Bin li Shi-Yuan liu li Fan Department of Radiology the Second Affiliated Hospital of Naval Medical UniversityShanghai 200003China School of Medical Imaging Shandong Second Medical UniversityWeifang 261053ShandongChina Department of Radiology School of MedicineTongji HospitalTongji UniversityShanghai 200065China Department of Radiology Zhejiang Province People’s HospitalAffiliated People’s Hospital of Hangzhou Medical CollegeHangzhou 310014China Department of Radiology Sir Run Run Shaw HospitalZhejiang 310018China Jiangxi Provincial People’s Hospital the First Affiliated Hospital of Nanchang Medical CollegeNanchang 330006China College of Health Sciences and Engineering University of Shanghai for Science and TechnologyShanghai 200093China Department of Radiology the Second People’s Hospital of DeyangDeyang 618000SichuanChina Department of Radiation Oncology Shanghai Jiao Tong University Affiliated Sixth People’s HospitalShanghai 200233China

Background:Computed tomography(CT)plays a great role in characterizing and quantifying changes in lung structure and function of chronic obstructive pulmonary disease(COPD).This study aimed to explore the performance of CT-based whole lung radiomic in discriminating COPD patients and non-COPD ***:This retrospective study was performed on 2785 patients who underwent pulmonary function examination in 5 hospitals and were divided into non-COPD group and COPD *** radiomic features of the whole lung volume were *** absolute shrinkage and selection operator(LASSO)logistic regression was applied for feature selection and radiomic signature construction.A radiomic nomogram was established by combining the radiomic score and clinical *** operating characteristic(ROC)curve analysis and decision curve analysis(DCA)were used to evaluate the predictive performance of the radiomic nomogram in the training,internal validation,and independent external validation ***:Eighteen radiomic features were collected from the whole lung volume to construct a radiomic *** area under the curve(AUC)of the radiomic model in the training,internal,and independent external validation cohorts were 0.888[95%confidence interval(CI)0.869–0.906],0.874(95%CI 0.844–0.904),and 0.846(95%CI 0.822–0.870),*** were higher than the clinical model(AUC were 0.732,0.714,and 0.777,respectively,Plinical factor ***:The intuitive nomogram constructed by CT-based whole-lung radiomic has shown good performance and high accuracy in identifying COPD in this multicenter study.

关键词： Chronic obstructive pulmonary disease(COPD) Computed tomography(CT) Radiomic

MXene Hybridized Polymer with Enhanced Electromagnetic Energy Harvest for Sensitized Microwave Actuation and Self‑Powered Motion Sensing

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Nano-Micro Letters 2025年第3期17卷 265-279页

作者： Yu‑Ze Wang Yu‑Chang Wang ting‑ting liu Quan‑liang Zhao Chen‑Sha li Mao‑Sheng Cao School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081People’s Republic of China School of Materials Science and Engineering Peking UniversityBeijing 100871People’s Republic of China School of Mechanical and Material Engineering North China University of TechnologyBeijing 100144People’s Republic of China Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People’s Republic of ChinaHeilongjiang UniversityHarbin 150080People’s Republic of China

Polymeric microwave actuators combining tissue-like softness with programmablemicrowave-responsive deformation hold great promise for mobile intelligentdevices and bionic soft robots. However, their application is challenged by restricted electromagneticsensitivity and intricate sensing coupling. In this study, a sensitized polymericmicrowave actuator is fabricated by hybridizing a liquid crystal polymer with Ti3C2Tx(MXene). Compared to the initial counterpart, the hybrid polymer exhibits unique spacechargepolarization and interfacial polarization, resulting in significant improvements of230% in the dielectric loss factor and 830% in the apparent efficiency of electromagneticenergy harvest. The sensitized microwave actuation demonstrates as the shortenedresponse time of nearly 10 s, which is merely 13% of that for the initial shape memory polymer. Moreover, the ultra-low content of MXene (upto 0.15 wt%) benefits for maintaining the actuation potential of the hybrid polymer. An innovative self-powered sensing prototype that combinesdriving and piezoelectric polymers is developed, which generates real-time electric potential feedback (open-circuit potential of ~ 3 mV) duringactuation. The polarization-dominant energy conversion mechanism observed in the MXene-polymer hybrid structure furnishes a new approachfor developing efficient electromagnetic dissipative structures and shows potential for advancing polymeric electromagnetic intelligent devices.

关键词： Microwave absorption Electromagnetic response Energy harvest Self-sensing Soft actuator

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小微企业融资困境和普惠金融关系研究综述

技术经济与管理研究 2017年第8期 62-65页

作者：李秀婷中央财经大学政府管理学院北京100081 北京工商大学嘉华学院北京101118

文章基于小微企业"融资难、融资贵"的突出问题,在分析小微企业发展及融资困境、普惠金融及其在中国的发展和趋势的基础上,梳理了国内外关于小微企业融资困境的成因、普惠金融的性质、目的及其对小微企业融资服务的作用、途径等方面的研... 详细信息

文章基于小微企业"融资难、融资贵"的突出问题,在分析小微企业发展及融资困境、普惠金融及其在中国的发展和趋势的基础上,梳理了国内外关于小微企业融资困境的成因、普惠金融的性质、目的及其对小微企业融资服务的作用、途径等方面的研究,并对上述研究进行了述评。通过综述发现已有研究为解决小微企业"融资难、融资贵"的困境奠定了坚实的理论基础,同时具有重要的指导作用。但在通过普惠金融如何促进小微企业融资便利化,解决小微企业困境的具体措施方面缺乏深入系统的研究,这无疑为后续的研究提供了继续完善和深化的空间。为此,综述小微企业融资困境和普惠金融关系的相关研究,对于研究普惠金融如何有效解决小微企业融资困境及其具体措施方面具有重要的理论指导意义。

关键词：小微企业融资困境普惠金融融资措施

基于投入产出模型的我国房地产业宏观经济效应分析

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系统工程理论与实践 2014年第2期34卷 323-336页

作者：李秀婷刘凡吴迪董纪昌高鹏中国科学院大学管理学院北京100190 北京银行博士后科研工作站北京100080

对房地产业的合理定位是有效实施宏观调控和长远规划行业发展的重要前提.本文基于投入产出模型和1997以来的5张投入产出表,测算了我国房地产业的宏观经济效应,其中包括房地产业的产业关联效应,及其对经济增长、就业及物价的影响.研究成... 详细信息

对房地产业的合理定位是有效实施宏观调控和长远规划行业发展的重要前提.本文基于投入产出模型和1997以来的5张投入产出表,测算了我国房地产业的宏观经济效应,其中包括房地产业的产业关联效应,及其对经济增长、就业及物价的影响.研究成果有助于对我国房地产业在国民经济中进行合理定位,也为有效实施房地产调控,促进国民经济的协调发展提供量化依据.

关键词：房地产业投入产出模型宏观经济效应投入产出表产业关联