检索结果-南通市图书馆

Zoological Systematics 2019年第3期44卷 177-184页

作者： Hecai Zhang tiange hu Changying Shi Guangwen Chen College of Life Sciences Henan Normal University

Due to their characteristics, such as powerful regeneration capability, high susceptibility to xenobiotics, wide distribution and weak dispersion ability, planarians are used as ideal test animals in several research fields, and planarianology has become a more and more active subject. This paper reviews the research progress of planarians from the aspects of molecular phylogeny, molecular taxonomy, population genetics and phylogeography, and also summarizes the corresponding molecular markers applied. Moreover, the future direction and tendency in this field is briefly analyzed and prospected.

关键词： Planarian molecular marker molecular phylogeny molecular taxonomy, population genetics phylogeography

Genetic diversity,population structure and demographic history of Dugesia japonica in Taihang Mountains

在线全文

学校读者我要写书评

暂无评论

Zoological Systematics 2021年第2期46卷 153-162页

作者： Hecai Zhang tiange hu Changying Shi Guangwen Chen Dezeng Liu College of Life Sciences Henan Normal UniversityXinxiang 453007China

The freshwater planarian Dugesia japonica has become a model organism in regeneration biology and toxicology due to its powerful regeneration capability and highly chemical ***,little is known about its evolutionary history and *** Mountains is the natural boundary between the Loess Plateau and the North China Plain,and is considered as one of the important priority areas for biodiversity conservation in *** order to figure out the genetic diversity,population structure and demographic history of *** in Taihang Mountains,a study based on the mitochondrial COI from 116 individuals sampled across 20 populations has been *** results showed that the 116 COI sequences yielded 32 haplotypes,including 8 shared haplotypes and 24 private *** overall haplotype diversity(Hd)and nucleotide diversity(π)were 0.920 and 0.083,*** though the AMOVA results suggested that the genetic variation among populations was significant(FST=0.480,P<0.01),the phylogeny and haplotype network analysis based on 32 haplotypes revealed no obvious phylogeographic ***,the significantly positive values of neutrality test(Tajima’s D=2.596,P<0.05;Fu’s Fs=2.769,P<0.01)together with the multimodal arrangement of mismatch distribution indicated that *** in Taihang Mountains would have been undergoing population *** hope these findings will arouse conservation and management strategy regarding freshwater planarians and contribute to the biodiversity in the long run.

关键词： Dugesia japonica Taihang Mountains genetic diversity population structure demographic history

Early-life famine exposure,adulthood obesity patterns,and risk of low-energy fracture

在线全文

学校读者我要写书评

暂无评论

Frontiers of Medicine 2024年第1期18卷 192-203页

作者： Hongyan Qi Chunyan hu Jie Zhang Lin Lin Shuangyuan Wang Hong Lin Xiaojing Jia Yuanyue Zhu Yi Zhang Xueyan Wu Mian Li Min Xu Yu Xu tiange Wang Zhiyun Zhao Weiqing Wang Yufang Bi Meng Dai Yuhong Chen Jieli Lu Department of Endocrine and Metabolic Diseases Shanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of MedicineShanghai200025China Shanghai National Clinical Research Center for Endocrine and Metabolic Diseases Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the People’s Republic of ChinaShanghai National Center for Translational MedicineRuijin HospitalShanghai Jiao Tong University School of MedicineShanghai200025China

Malnutrition in early life increases the risk of osteoporosis,but the association of early-life undernutrition combined with adulthood obesity patterns with low-energy fracture remains *** study included 5323 community-dwelling subjects aged⩾40 years from ***-life famine exposure was identified based on the participants’birth *** obesity was assessed using the body mass index(BMI),and abdominal obesity was evaluated with the waist-to-hip ratio(WHR).Low-energy fracture was defined as fracture occurring after the age of⩾40 typically caused by falls from standing height or *** to the nonexposed group,the group with fetal,childhood,and adolescence famine exposure was associated with an increased risk of fracture in women with odds ratios(ORs)and 95%confidence intervals(CIs)of 3.55(1.57–8.05),3.90(1.57–9.71),and 3.53(1.05–11.88),respectively,but not in *** interactions were observed between fetal famine exposure and general obesity with fracture among women(P for interaction=0.0008).Furthermore,compared with the groups with normal BMI and WHR,the group of women who underwent fetal famine exposure and had both general and abdominal obesity had the highest risk of fracture(OR,95%CI:3.32,1.17–9.40).These results indicate that early-life famine exposure interacts with adulthood general obesity and significantly increases the risk of low-energy fracture later in life in women.

关键词： famine obesity body mass index waist-to-hip ratio low-energy fracture

基于鲁棒增广e约束法的综合能源系统多目标多阶段供能优化配置方法

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

电网技术 2024年第7期48卷 2723-2733,I0013,I0014,I0015页

作者：李天格胡志坚谈竹奎王扬胡号郝丹宁郑琳武汉大学电气与自动化学院湖北省武汉市430072 贵州电网有限责任公司电力科学研究院贵州省贵阳市550005

综合能源园区供能优化配置是实践现代能源体系建设、实现能源高效清洁利用的重要技术手段,然而现有规划配置方法存在多能耦合转换模型各异、忽视建设时序性与缺乏多维目标选优上的不足。为此,该文建立综合能源系统多目标多阶段供能优化... 详细信息

综合能源园区供能优化配置是实践现代能源体系建设、实现能源高效清洁利用的重要技术手段,然而现有规划配置方法存在多能耦合转换模型各异、忽视建设时序性与缺乏多维目标选优上的不足。为此,该文建立综合能源系统多目标多阶段供能优化配置模型,该模型为一个多目标混合整数线性优化问题。为实现多目标问题的高效求解,提出了基于鲁棒增广e约束法(robust augmented e-constraint method,AUGMECON-R)的Pareto解集求解方法,并结合综合权重与逼近理想解排序法(technique for order preference by similarity to ideal solution,TOPSIS),选取最契合园区多维评价偏好的建设方案。通过算例仿真验证了所提模型和算法的有效性,该模型能适用于各地各类型园区的供能优化配置决策。

关键词：综合能源系统规划多维目标多阶段模型鲁棒增广e约束法

Two-dimensional materials for future information technology: status and prospects

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2024年第6期67卷 1-147页

作者： Hao QIU Zhihao YU tiange ZHAO Qi ZHANG Mingsheng XU Peifeng LI Taotao LI Wenzhong BAO Yang CHAI Shula CHEN Yiqi CHEN hui-Ming CHENG Daoxin DAI Zengfeng DI Zhuo DONG Xidong DUAN Yuhan FENG Yu FU Jingshu GUO Pengwen GUO Yue HAO Jun HE Xiao HE Jingyi hu Weida hu Zehua hu Xinyue huANG Ziyang huANG Ali IMRAN Ziqiang KONG Jia LI Qian LI Weisheng LI Lei LIAO Bilu LIU Can LIU Chunsen LIU Guanyu LIU Kaihui LIU Liwei LIU Sheng LIU Yuan LIU Donglin LU Likuan MA Feng MIAO Zhenhua NI Jing NING Anlian PAN Tian-Ling REN Haowen Shu Litao SUN Yue SUN Quanyang TAO Zi-Ao TIAN Dong WANG Hao WANG Haomin WANG Jialong WANG Junyong WANG Wenhui WANG Xingjun WANG Yeliang WANG Yuwei WANG Zhenyu WANG Yao WE... School of Electronic Science and Engineering Nanjing University School of Integrated Circuits Interdisciplinary Research Center for Future Intelligent Chips (Chip-X)Nanjing University School of Integrated Circuit Science and Engineering Nanjing University of Posts and Telecommunications State Key Laboratory of Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences School of Physics and Key Lab of Quantum Materials and Devices of the Ministry of Education School of Electronic Science & EngineeringSoutheast University College of Integrated Circuits State Key Laboratory of Silicon and Advanced Semiconductor MaterialsZhejiang University Suzhou Laboratory State Key Laboratory of Integrated Chips and Systems School of MicroelectronicsFudan University Shaoxin Laboratory Department of Applied Physics The Hong Kong Polytechnic University Key Laboratory for Micro-Nano Physics and Technology of hunan Province College of Materials Science and EngineeringHunan University College of Integrated Circuits Zhejiang University Shenzhen Geim Graphene Center Shenzhen Key Laboratory of Layered Materials for Value-Added ApplicationsTsinghua-Berkeley Shenzhen Institute & Institute of Materials ResearchTsinghua Shenzhen International Graduate SchoolTsinghua University State Key Laboratory of Extreme Photonics and Instrumentation College of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZijingang CampusZhejiang University National Key Laboratory of Materials for Integrated Circuits Shanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences CAS Key Laboratory of Nanophotonic Materials and Devices & Key Laboratory of Nanodevices and Applications i-LabSuzhou Institute of Nano-Tech and Nano-Bionics (SINANO)Chinese Academy of Sciences College of Chemistry and Chemical Engineering Hunan University Key Laboratory of Quantum State Construction and Manipulation (Ministry of Education) Department of PhysicsRenmin University of China School

Over the past 70 years, the semiconductor industry has undergone transformative changes,largely driven by the miniaturization of devices and the integration of innovative structures and materials. Two-dimensional(2D) materials like transition metal dichalcogenides(TMDs) and graphene are pivotal in overcoming the limitations of silicon-based technologies, offering innovative approaches in transistor design and functionality, enabling atomic-thin channel transistors and monolithic 3D integration. We review the important progress in the application of 2D materials in future information technology, focusing in particular on microelectronics and optoelectronics. We comprehensively summarize the key advancements across material production, characterization metrology, electronic devices, optoelectronic devices, and heterogeneous integration on silicon. A strategic roadmap and key challenges for the transition of 2D materials from basic research to industrial development are outlined. To facilitate such a transition, key technologies and tools dedicated to 2D materials must be developed to meet industrial standards, and the employment of AI in material growth, characterizations, and circuit design will be essential. It is time for academia to actively engage with industry to drive the next 10 years of 2D material research.

关键词： two-dimensional (2D) materials information technology production technology standardization of characterization microelectronicdevices optoelectronic devices multi-functional integration

Associations of sleeping patterns and isotemporal substitution of other behavior with the prevalence of CKD in Chinese adults

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Medicine 2024年第2期18卷 303-314页

作者： Yi Ding Xiaoli Xu Zhuojun Xin Qiuyu Cao Jiaojiao huang Xianglin Wu Yanan huo Qin Wan Yingfen Qin Ruying hu Lixin Shi Qing Su Xuefeng Yu Li Yan Guijun Qin Xulei Tang Gang Chen Min Xu tiange Wang Zhiyun Zhao Zhengnan Gao Guixia Wang Feixia Shen Zuojie Luo Li Chen Qiang Li Zhen Ye Yinfei Zhang Chao Liu Youmin Wang Tao Yang huacong Deng Lulu Chen Tianshu Zeng Jiajun Zhao Yiming Mu Shengli Wu Yuhong Chen Jieli Lu Weiqing Wang Guang Ning Yu Xu Yufang Bi Mian Li Department of Endocrine and Metabolic Diseases Shanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of MedicineShanghai200025China Shanghai National Clinical Research Center for Metabolic Diseases Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of ChinaShanghai Key Laboratory for Endocrine TumorState Key Laboratory of Medical GenomicsRuijin HospitalShanghai Jiao Tong University School of MedicineShanghai200025China Jiangxi Provincial People’s Hospital Affiliated to Nanchang UniversityNanchang330000China Department of Endocrinology The Affiliated Hospital of Southwest Medical UniversityLuzhou646000China Department of Endocrinology The First Affiliated Hospital of Guangxi Medical UniversityNanning530000China Zhejiang Provincial Center for Disease Control and Prevention Hangzhou310000China Department of Endocrinology Affiliated Hospital of Guiyang Medical UniversityGuiyang550000China Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai200000China Tongji Hospital Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan430000China Sun Yat-sen Memorial Hospital Sun Yat-sen UniversityGuangzhou510000China Department of Endocrinology The First Affiliated Hospital of Zhengzhou UniversityZhengzhou450000China Department of Endocrinology The First Hospital of Lanzhou UniversityLanzhou730000China Fujian Provincial Hospital Fujian Medical UniversityFuzhou350000China Dalian Municipal Central Hospital Affiliated of Dalian Medical UniversityDalian116000China Department of Endocrinology The First Hospital of Jilin UniversityChangchun130000China Department of Endocrinology The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou325000China Qilu Hospital of Shandong University Jinan250000China Department of Endocrinology The Second Affiliated Hospital of Harbin Medical UniversityHarbin150000China Department of Endocrinology Cen

Studies have found a U-shaped relationship between sleep duration and chronic kidney disease(CKD)risk,but limited research evaluated the association of reallocating excessive sleep to other behavior with *** included 104538 participants from the nationwide cohort of the Risk Evaluation of Cancers in Chinese Diabetic Individuals:A Longitudinal Study,with self-reported time of daily-life *** isotemporal substitution models,we found that substituting 1 h of sleeping with sitting,walking,or moderate-to-vigorous physical activity was associated with a lower CKD ***-time physical activity displacement was associated with a greater prevalence reduction than occupational physical activity in working *** stratified analysis,a lower CKD prevalence related to substitution toward physical activity was found in long *** pronounced correlations were observed in long sleepers with diabetes than in those with prediabetes,and they benefited from other behavior substitutions toward a more active *** U-shaped association between sleep duration and CKD prevalence implied the potential effects of insufficient and excessive sleep on the kidneys,in which the pernicious link with oversleep could be reversed by time reallocation to physical *** divergence in the predicted effect on CKD following time reallocation to behavior of different domains and intensities and in subpopulations with diverse metabolic statuses underlined the importance of optimizing sleeping patterns and adjusting integral behavioral composition.

关键词： sleep physical activity chronic kidney disease isotemporal substitution behavioral pattern

应用 DSA 进行颅内组织无框架立体定位的方法

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

上海交通大学学报 1998年第8期32卷 130-133页

作者：费保蔚庄天戈胡杰周范民上海交通大学生物医学工程系上海医科大学附属华山医院神经外科

提出了一种利用数字血管减影（ＤＳＡ）对颅内组织进行无框架立体定位的方法．该方法利用４个定位头标和２幅ＤＳＡ投影图象，完全确定颅内任何一点相对于定位坐标系的三维坐标．计算机仿真及实验结果表明，该方法理论正确，定位精度为... 详细信息

提出了一种利用数字血管减影（ＤＳＡ）对颅内组织进行无框架立体定位的方法．该方法利用４个定位头标和２幅ＤＳＡ投影图象，完全确定颅内任何一点相对于定位坐标系的三维坐标．计算机仿真及实验结果表明，该方法理论正确，定位精度为０．５ｍｍ，可应用于放射治疗和计算机辅助神经外科手术．

关键词：数字血管减影颅内组织立体定位 CAD 放射治疗

大型油化船上层建筑分段整体吊装方案分析及优化

在线全文

学校读者我要写书评

暂无评论

上海船舶运输科学研究所学报 2024年第3期47卷 15-21页

作者：刘呈伟章锐贾天戈李同兰胡泽军吴金耘舟山长宏国际船舶修造有限公司浙江舟山316052 浙江海洋大学船舶与海运学院浙江舟山316022 浙江海洋大学海洋工程装备学院浙江舟山316022 舟山市卓林船舶设计有限公司浙江舟山316000

针对某大型油化船上层建筑分段整体吊装存在的结构安全问题,采用有限元方法对该上层建筑分段进行整体建模和仿真计算,重点对吊排及其连接处的结构最大应力和最大位移进行分析。基于中国船级社规范对现行吊装方案下上层建筑在吊装过程中... 详细信息

针对某大型油化船上层建筑分段整体吊装存在的结构安全问题,采用有限元方法对该上层建筑分段进行整体建模和仿真计算,重点对吊排及其连接处的结构最大应力和最大位移进行分析。基于中国船级社规范对现行吊装方案下上层建筑在吊装过程中的应力和变形进行评估,在此基础上采用调整吊排角度的方法对该吊装方案进行优化。计算结果表明,采用优化后的吊装方案,吊排附近结构、整体结构的最大应力和最大位移满足规范的要求,该研究可供后续大型船舶上层建筑整体吊装方案设计参考。

关键词：大型油化船上层建筑整体吊装结构响应有限元计算

图像分割中采用自适应3次 B样条修饰轮廓线(英文)

在线全文

学校读者我要写书评

暂无评论

红外与毫米波学报 2001年第6期20卷 401-405页

作者：李斌胡海波庄天戈上海交通大学生物医学工程系上海200030

提出了一种在图像分割中获取连续光滑轮廓线的方法 .该方法先以动态规划方法处理图像的全局最小累积代价阵 ,并从累积代价梯度降低最快的方向提取全局最优的轮廓线 .然后用一种自适应 3次 B样条对获得的轮廓线进行修饰和平滑处理 .该样... 详细信息

提出了一种在图像分割中获取连续光滑轮廓线的方法 .该方法先以动态规划方法处理图像的全局最小累积代价阵 ,并从累积代价梯度降低最快的方向提取全局最优的轮廓线 .然后用一种自适应 3次 B样条对获得的轮廓线进行修饰和平滑处理 .该样条可根据轮廓线不同处的曲率变化情况 ,自适应地调整控制点的分布 .在各类图像上的试验表明 ,该方法能有效地消除轮廓线上的小锯齿 ,获得较其它方法更平滑的曲线 ,同时又保留了轮廓线的特征细节 .

关键词：轮廓提取图像分割自适应3次B样条轮廓线修饰动态规划

计及电-气-热-氢需求响应的综合能源系统多时间尺度低碳运行优化策略

在线全文

学校读者我要写书评

暂无评论

电力自动化设备 2023年第1期43卷 16-24页

作者：李天格胡志坚陈志刘盛辉武汉大学电气与自动化学院湖北武汉430072

为更好地促进综合能源系统(IES)的低碳经济运行,提升多时间尺度运行优化管理水平,提出了一种考虑电-气-热-氢需求响应与阶梯式碳排放费用机制的多时间尺度低碳运行优化策略。综合考虑阶梯式碳排放费用机制,关注电、气、热之外的氢负荷需... 详细信息

为更好地促进综合能源系统(IES)的低碳经济运行,提升多时间尺度运行优化管理水平,提出了一种考虑电-气-热-氢需求响应与阶梯式碳排放费用机制的多时间尺度低碳运行优化策略。综合考虑阶梯式碳排放费用机制,关注电、气、热之外的氢负荷需求,通过优化耦合设备中的燃气轮机热电比的可调性,建立了日前-日内滚动-实时三阶段的多时间尺度优化模型。以IES整体运行成本、碳排放费用成本、弃风弃光成本最小为经济目标,并将原非线性问题转化为混合整数线性问题,调用Gurobi求解器求解。通过仿真对比分析各类情形下的优化结果,验证了所提策略在促进低碳运行、发挥系统设备灵活性与促进清洁能源消纳方面的有效性。

关键词：多时间尺度需求响应综合能源系统阶梯式碳排放费用机制可调热电比氢能