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基于ISSR与ITS-RFLP的花生白绢病菌遗传多样性分析

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中国油料作物学报 2021年第4期43卷 724-730页

作者：宋万朵晏立英雷永淮东欣康彦平王志慧姜慧芳廖伯寿中国农业科学院油料作物研究所/油料作物生物学与遗传育种重点实验室武汉430062

本研究利用简单重复序列区间(Inter Simple Sequence Repeat,ISSR)和ITS-RFLP技术,对采自我国12个省市的39个花生白绢病菌菌株进行遗传多样性分析。结果表明:从筛选出的17条ISSR引物共扩增出269条DNA谱带,其中多态性谱带266条,平均多态... 详细信息

本研究利用简单重复序列区间(Inter Simple Sequence Repeat,ISSR)和ITS-RFLP技术,对采自我国12个省市的39个花生白绢病菌菌株进行遗传多样性分析。结果表明:从筛选出的17条ISSR引物共扩增出269条DNA谱带,其中多态性谱带266条,平均多态性百分率为98.9%,UPGMA聚类分析将这些菌株分为4个类群。限制性内切酶AluⅠ、RsaⅠ、HpaⅡ和MboⅠ作用内部转录间隔区(Internal Transcribed Spacer,ITS)PCR扩增产物产生的谱带,利用ITS-RFLP分析遗传多样性,将39个菌株划分为7个组群。ISSR和ITS-RFLP的结果均表明花生白绢病菌存在较高的遗传变异,但其遗传相似性与地理来源无明显相关。

关键词：花生白绢病 Sclerotium rolfsii ISSR ITS-RFLP 遗传多样性

Energy Efficiency Maximization for Cooperative NOMA with Hardware Impairments

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China Communications 2024年第12期21卷 80-91页

作者： wang Zhengqiang Chang Ruifei wan Xiaoyu Fan Zifu duo Bin School of Communication and Information Engineering Chongqing University of Posts and TelecommunicationsChongqing 400065China College of Computer Science and Cyber Security Chengdu University of TechnologyChengdu 610059China

The massive connectivity and limited energy pose significant challenges to deploy the enormous devices in energy-efficient and environmentally friendly in the Internet of Things(IoT).Motivated by these challenges,this paper investigates the energy efficiency(EE)maximization problem for downlink cooperative non-orthogonal multiple access(C-NOMA)systems with hardware impairments(HIs).The base station(BS)communicates with several users via a half-duplex(HD)amplified-and-forward(AF)***,we formulate the EE maximization problem of the system under HIs by jointly optimizing transmit power and power allocated coefficient(PAC)at BS,and transmit power at the *** original EE maximization problem is a non-convex problem,which is challenging to give the optimal solution ***,we use fractional programming to convert the EE maximization problem as a series of subtraction form ***,variable substitution and block coordinate descent(BCD)method are used to handle the ***,a resource allocation algorithm is proposed to maximize the EE of the ***,simulation results show that the proposed algorithm outperforms the downlink cooperative orthogonal multiple access(C-OMA)scheme.

关键词： block coordinate descent cooperative non-orthogonal multiple access energy efficiency hardware impairments resource allocation

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上海体育学院部分学生人格健康调查与思考

体育科学 2004年第8期24卷 21-25页

作者：杨学军朱咏贤吴家舵成万祥张庆文陈周业上海体育学院上海200438

对上海体育学院 2 0 0 1年级、2 0 0 2年级大部分学生进行了人格健康调查 ,结果表明 ,绝大多数同学为人格健康者。但发现在两个年级中 ,人格健康欠佳者分别占被调查人数的 5 .6 %和8.2 %。探讨了原因 ,明确了对上海体育学院学生进行人... 详细信息

对上海体育学院 2 0 0 1年级、2 0 0 2年级大部分学生进行了人格健康调查 ,结果表明 ,绝大多数同学为人格健康者。但发现在两个年级中 ,人格健康欠佳者分别占被调查人数的 5 .6 %和8.2 %。探讨了原因 ,明确了对上海体育学院学生进行人格健康教育的重要性、必要性和紧迫性 ,并提出了完善的措施。

关键词：大学生人格特征健康上海体育学院调研

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从中西医差异探讨肿瘤临床教学模式

中国中医药现代远程教育 2024年第24期22卷 26-28页

作者：孙铜林李杨孙银辉万多王理槐湖南中医药大学第一附属医院肿瘤科湖南长沙410007 湖南中医药大学医学院湖南长沙410208

肿瘤严重威胁着人们的健康,给社会、患者家庭带来了沉重的负担。培养肿瘤专科人才是行之有效的应对策略,而培养人才的关键之一是临床教学。中西医的理论实践与教学存在差异,文章梳理其中的异同,探究中西医优势互补的教学模式。基于问题... 详细信息

肿瘤严重威胁着人们的健康,给社会、患者家庭带来了沉重的负担。培养肿瘤专科人才是行之有效的应对策略,而培养人才的关键之一是临床教学。中西医的理论实践与教学存在差异,文章梳理其中的异同,探究中西医优势互补的教学模式。基于问题的学习法(PBL)-多学科协作诊疗(MDT)模式下的中西医结合教学,使中西医差异交叉融合,扬长避短,令肿瘤专科学生更加有效地深入认识疾病。

关键词：中西医差异肿瘤临床教学 PBL-MDT模式

Insight into Biophysicochemical Principles of Biopolymers through Simulation and Theory

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Chinese Journal of Polymer Science 2023年第9期41卷 1342-1354,I0005页

作者： Hai-Xiao wan duo Xu Xue-Wei Dong Kai Yang Li-Tang Yan State Key Laboratory of Chemical Engineering Department of Chemical EngineeringTsinghua UniversityBeijing100084China Center for Soft Condensed Matter Physics and Interdisciplinary Research&School of Physical Science and Technology Soochow UniversitySuzhou215006China

The development of biopolymers for biomedical applications has traditionally been based on new ***,there is growing recognition that the biological responses can be regulated by the physical as well as the chemical properties of *** the biophysicochemical principles regarding biopolymers is thereby of great importance in the generation of advanced ***,this review article seeks to provide a conceptual framework demonstrating how the approaches of tailored computer simulations and theoretical analysis are harnessed to explore the physicochemical principles of biopolymer cellular *** briefly introduce the theoretical and simulation methods used in this field,summarize the typical findings based on these approaches,and describe the correlations between theoretical results and ***,the future prospects for the theoretical aspect of biopolymers and their biophysicochemical interactions are *** knowledge might be critical from the perspective of advantageous and safe use of designer biomaterials.

关键词： Biopolymers Computer simulation Theoretical analysis Biophysicochemical interaction Biophysics

Molecular Simulations in Macromolecular Science

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Chinese Journal of Polymer Science 2023年第9期41卷 1361-1370,I0005页

作者： duo Xu Hai-Xiao wan Xue-Rong Yao Juan Li Li-Tang Yan State Key Laboratory of Chemical Engineering Department of Chemical EngineeringTsinghua UniversityBeijing100084China Beijing Research Institute of Chemical Industry SINOPECBeijing100013Chin

Molecular simulations are now an essential part of modern chemistry and physics,especially for the investigation of *** have evolved into mature approaches that can be used effectively to understand the structure-to-property relationships of diverse macromolecular *** this article,we provide a tutorial on molecular simulations,focusing on the technical and practical *** prominent and classical simulation methods and software are *** applications of molecular simulations in various directions of macromolecular science are thenfeatured by representative systems,including self-assembly,crystallization,chemical reaction,and some typical non-equilibrium *** tutorial paper provides a useful overview of molecular simulations in the rapid progress of macromolecular science,and suggests guidance for researchers who start exploiting molecular simulations in their study.

关键词： Molecular simulation Coarse-grained molecular dynamics Multi-scale method Polymer physics

Influence of Wave Direction on the Dynamic Response of A Submarine Equipment Launch and Recovery System

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China Ocean Engineering 2022年第1期36卷 144-154页

作者： JIN Yong-ping XIE Kun LIU Guang-ping wan Bu-yan PENG You-duo National-Local Joint Engineering Laboratory of Marine Mineral Resources Exploration Equipment and Safety Technology Hunan University of Science and TechnologyXiangtan 411201China

A launch and recovery system for a seafloor drill was studied using a dynamic model that considered the influences of seawater resistance and the elastic deformation of the cable based on the lumped mass *** influence of wave direction angle on heave,roll,and pitch motions of the ship was analyzed,and those motion characteristics were then used to assess the tension response of the armored umbilical cable at the lifting point under different wave direction *** analyzing the different wave direction angles we found that,when a ship experiences longitudinal waves it will express longitudinal *** a ship encounters transverse waves,it will have transverse *** oblique waves from bow or stern,a ship will have both longitudinal and transverse movement,exhibiting obvious heave and pitch *** waves,in this study,produced the most obvious impact on armored umbilical cable ***,the tension of the armored umbilical cable will change based on the weight of the armored umbilical cable and the seafloor drill in the *** analysis has provided a useful reference for the study of heave compensation and the constant tension automatic control.

关键词： seafloor drill elastic cable lumped mass method motion characteristics analysis

新疆西昆仑特格里曼苏砂岩型铜矿地质特征及成因探讨

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地质找矿论丛 2012年第3期27卷 284-290页

作者：曾威孙丰月张雪梅万多许庆林天津地质调查中心天津300170 吉林大学地球科学学院长春130061 大港油田第一采油厂天津300280

特格里曼苏铜矿产于库山河群(C1k)砂岩中,矿体呈层状、似层状产出,受地层控制,浅色砂岩与紫色砂岩的交互带是铜矿体产出的最有利层位。通过对含矿砂岩胶结物的研究,认为赋矿砂岩中胶结物类型主要有碳酸盐胶结、硅质胶结、泥质胶结和铁... 详细信息

特格里曼苏铜矿产于库山河群(C1k)砂岩中,矿体呈层状、似层状产出,受地层控制,浅色砂岩与紫色砂岩的交互带是铜矿体产出的最有利层位。通过对含矿砂岩胶结物的研究,认为赋矿砂岩中胶结物类型主要有碳酸盐胶结、硅质胶结、泥质胶结和铁质胶结4种,常见的胶结物组合类型有碳酸盐-硅质胶结组合、碳酸盐-泥质胶结组合、硅质-泥质胶结组合、铁质-泥质-碳酸盐胶结组合;矿化常发生于具碳酸盐-硅质胶结组合的砂岩中,铜矿物与硅质胶结物伴生。通过对含矿砂岩胶结物中流体包裹体研究,得到成矿流体为低温、低盐度流体。认为矿床成因为沉积成岩成因,古陆的风化剥蚀提供了基本的成矿物质,沉积物的搬运沉积形成了矿源层,成岩作用时期由于有机质及细菌的作用、氧化还原条件的改变,在成岩流体的迁移下造成了铜质的局部再富集,形成具有工业意义的铜矿体。

关键词：特格里曼苏砂岩型铜矿沉积成岩成因流体包裹体西昆仑新疆维吾尔自治区

冠心病患者炎性因子的变化及其与血清视黄醇结合蛋白4水平的相关性研究

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中国医药指南 2014年第5期12卷 7-8页

作者：吴桂平付鑫张彦红邹慕蔚万多沈阳医学院沈洲医院心内科辽宁沈阳110035

目的探讨冠心病患者血清高敏C反应蛋白(hs-CRP)、白细胞介素-6(IL-6)、MCP-1与视黄醇结合蛋白4(RBP4)的相关性。方法分别收集健康组、动脉粥样硬化组、CHD组患者,检测其空腹血清RBP4、hs-CRP、IL-6、MCP-1水平。结果与健康组相比,AS组、... 详细信息

目的探讨冠心病患者血清高敏C反应蛋白(hs-CRP)、白细胞介素-6(IL-6)、MCP-1与视黄醇结合蛋白4(RBP4)的相关性。方法分别收集健康组、动脉粥样硬化组、CHD组患者,检测其空腹血清RBP4、hs-CRP、IL-6、MCP-1水平。结果与健康组相比,AS组、CHD组患者血清RBP4、hs-CRP、IL-6、MCP-1含量明显升高(P<0.05或P<0.01);相关性分析显示AS组、CHD组患者血清RBP4与炎性因子hs-CRP、IL-6、MCP-1呈正相关。结论 RBP4参与了动脉粥样硬化的炎性反应过程,其可能通过多种途径直接或间接地参与冠心病的发生发展。

关键词：视黄醇结合蛋白4 冠心病动脉粥样硬化炎性因子 Retinol binding protein 4