Design and Implementation of the Continue Education Student Information Management System for a Politics and Law Department

传统的继续教育管理方法因其效率低下、流程复杂已经难以适应当前的发展形势。基于上述研究背景，本文将主要针对某政法系统继续教育管理系统，通过将传统的继续教育管理方法与信息化计算机技术、网络技术相结合，达到提高政法系统学员的继续教育管理效率，完成学员在进行继续教育时所需的各种功能。 本系统采用流行的B/S架构，分为服务器端与后台服务器。用户在后台服务器实现操作，服务器则完成相应的业务处理。返回用户的操作结果。系统采用了SQLSERVER2008数据库对其进行开发，能够让用户在简单的界面里完成操作。 本系统能够对单位信息和个人信息进行有效的管理，满足某政法系统继续教育管理工作，实现了对继续教育单位...Traditional professional management work of continuing education in politics and law for continue education student information management system appeared a series of questions such as inefficient, mode backward between the various departments, and the loss of training materials and training information. Considering status of professional management work of continuing education politics department...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X201323193

A Primary Study of Energy Efficiency Optimization Covering Low CO2 Emission Reduction Restraint

随着中国经济的高速发展，能源需求不断增长。高企的国际原油价格对中国的经济增长产生很大的负担，威胁能源安全。与此同时，气候变化日益受到关注，以煤为主的能源结构，决定了高强度的二氧化碳排放，令中国在国际上备受压力。 本文首先从物质的角度，分析经济行为中能源的作用，揭示能源这一贯穿始终的生产要素的独特性和不可替代性，从而表明所有经济活动都是围绕能源开展的。基于此，本文定义了广义和狭义的能源效率，并分析了不同能源效率衡量指标的优缺点。并根据不同层面效率的经济学性质提出有针对的节能措施。 本文还简要分析了能源历史，并基于地质学的知识预测未来能源的核心问题不是化石能源的供给而是二氧化碳排放成本。 对...As the economy prospers, China has seen a continuous rise on energy demand while high oil price burdens the growth of economy and threatens the energy security. Coal-dominated energy structure contributes richly to high intensity of CO2 emissions, putting China in the spotlight since climate change has become a great concern nowadays. This paper begins with analyzing the function of energy in eco...学位：经济学硕士院系专业：经济学院中国能源经济研究中心_能源经济学学号：3132009115182

Research on Dynamic Evolution and Mechanism of Resources Acquisition in the Process of Entrepreneurship’s Growth——Based on Guanxi Perspective

企业所拥有的资源及资源的异质性是新创企业绩效产生差异的关键因素。由于创业企业自身所具有初始资源的短缺，如何从外部环境中获取这些资源并加以整合利用是创业企业绩效提升的关键。本文依据资源依附理论、资源基础理论、社会网络理论和交易成本理论，赋予“关系”以更符合中国当下国情，积极的定义。并以资源为主线，以“关系”为“桥梁”，把创业环境特性、创业网络、资源可获得性、资源整合能力纳入整合到一个框架体系内，构建了“关系”对创业企业不同阶段的资源获取机制影响模型。 本研究共由五个部分构成：第一部分为绪论，依次介绍了选题背景、研究目的与研究方法、研究步骤及技术路线；第二部分是文献综述，对研究变量的文献进行了回...Resources and resource heterogeneity are the key factors in new venture performance. Since the initial shortage of resources, how an entrepreneur enterprise to obtain these resources from the external environment and integrate them determining entrepreneurial performance afterward. Based on resource dependency theory, resource-based theory, social network theory and transaction cost theory, this t...学位：管理学硕士院系专业：管理学院企业管理系_企业管理(含财务管理、市场营销、人力资源管理)学号：1762009115106

Establishment of full-sib families of Branchiostoma japonicum and the relationship between early development patterns and larvae survival rates

2011年3月9日—5月19日,以厦门海域采集的野生个体和实验室繁育的日本文昌鱼成体为亲本,尝试性地建立了全同胞家系;采用温度和光照诱导的方法,对雌、雄亲本进行人工催产,获得了34对亲本的全同胞家系受精卵。在家系培育过程中发现致使胚胎和仔鱼死亡的几种主要原因,以及日本文昌鱼早期发育的两种模式。通过加强养护管理,提高仔鱼存活率,缩短幼体变态所需时间,最终建立了7个完成变态的全同胞家系。在这些家系中,从受精卵到完成变态后不久的亚成体存活率最高为32.4%,最低为1.67%,而变态最快历时24 d,最慢历时42 d。虽然在全同胞家系建立过程中,幼体死亡率高,家系间的胚胎和幼体生长发育状况差异大,但实验结果表明日本文昌鱼全同胞家系建立完全可行,为其优良品系选育建立了基础。One general requirement of individual laboratory animals is that they have known genetic backgrounds.However, ensuring such genetic similarity is difficult, and can be facilitated by breeding a full strain for experimentation.To this end, the authors bred 34full-sib families of amphioxus larvae/embryos.Due to the high mortality of the embryos and larvae, only seven full-sib families of juvenile amphioxus Branchiostoma japonicum were obtained.Among them, the highest and lowest survival ratios were 32.4% and1.67%, respectively, whereas the shortest metamorphosis and longest larva duration were 24 d and 42 d, respectively.These results demonstrate the feasibility of establishing full-sib families of amphioxus, and provide fundamental data needed for the future breeding of amphioxus strains.国家高技术研究发展计划(“863”)项目(2008AA092602); 国家自然科学基金项目(30830023); 深圳市科技研发资金项目(JSF201006290026A

Identification and expressional analysis of green fluorescent protein genes in amphioxus

通信作者(Corresponding author)，王义权(1957 -), 男, 教授, 博士生导师, 研究方向：动物分子遗传与进化。E-mail: [email protected][中文文摘]近年在隶属头索动物亚门的文昌鱼体内发现有内源性绿色荧光蛋白存在,并发现文昌鱼荧光蛋白的发光现象在不同发育时期以及个体间有较大的差异。为了进一步揭示GFP基因在文昌鱼中的进化模式,探索其可能执行的功能,该文首先对白氏文昌鱼(Branchiostoma belcheri)GFP基因作了全面鉴定,并对其不同发育阶段胚胎及成体不同区域中的荧光信号进行了实时观察记录,进而对GFP基因在绿色荧光表达强烈的两个特定时期做了绝对定量检测。研究结果表明,文昌鱼基因组中至少有12个内源性GFP基因,在个体发育的不同时期,内源性荧光出现的位置有所变化,而且在变态后的个体之间出现荧光的情况差异较大,荧光蛋白基因的表达由多个GFP同源基因共同参与,这些基因在不同的发育时期表达量有较大的差异,提示不同的GFP基因在特定发育阶段可能行使各自的功能。[英文文摘]Endogenous green fluorescent proteins (GFPs) have recently been found in amphioxus, where different characteristics of light production in different development stages and between different individuals have manifested. We identified the GFP genes in an amphioxus species Branchiostoma belcheri and monitored real time fluorescence signals of GFPs during different developmental stages to provide an insight on the GFP function in amphioxus. We found there are at least 12 endogenous GFP genes in amphioxus genome, and fluorescent expression changes in body position during different developmental stages. Additionally, GFP expression after metamorphosis development differed significantly among different amphioxus individuals, suggesting that there are multiple GFP homologous genes responsible for fluorescent expression. Expression levels of these genes varied significantly during different developmental stages,indicating that different GFP genes may have their unique functions in the development of amphioxus during specific phases of growth.国家自然科学基金项目(30830023;31071110

Analysis of Amphioxus Geographic Populations in the West Pacific Ocean Based on COX I Gene

文昌鱼是进化发育研究的重要模式动物,目前实验材料均采自野外。因此,对其进行正确的物种鉴定和地理种群的遗传分化分析十分必要。该研究扩增并测定了COXⅠ基因部分序列,结合nCbI数据库中的COXΙ序列信息,对太平洋西岸文昌鱼的种类和地理种群分化情况进行了分析。结果表明,马来文昌鱼(brAnCHIOSTOMA MAlAyAnuM)、白氏文昌鱼(b.bElCHErI)和日本文昌鱼(b.JAPOnICuM)这3个种之间的遗传差异很大,再次证实3个物种的有效性,同时提出应当审慎对待nCbI数据库中文昌鱼的种名标注;太平洋西岸文昌鱼属brAnCHIOSTOMA的3种文昌鱼群体遗传多样性均处于较高水平,同一物种的不同地理种群间没有出现明显的遗传分化,反映了海洋动物的基因交流较容易,不同海域隔离较弱。Amphioxus(lancelet) is an important model animal in the field of Evo-Devo study.However,the specimens for laboratorial experiments are usually sampled directly from the field.Thus,it is necessary to correctly identify species and evaluate the genetic diversity of geographic populations.In the present investigation,we amplified and sequenced COX Ⅰ gene of amphioxus collected from various localities of the West Pacific Ocean and downloaded all available sequences of the gene from NCBI.Based on those sequences data,we constructed NJ tree to decide the taxonomic status of those amphioxus and performed AMOVA analysis to estimate genetic diversities among geographic populations and individuals.The current results supported the validity of the three amphioxus species,Branchiostoma malayanum,B.belcheri and B.japonicum.We also proposed that some amphioxus species names recorded in NCBI sequence database might be inaccurate.Genetic analysis on the geographic populations of amphioxus species suggested that each examined amphioxus species have a high level of genetic diversity.However,the genetic divergences among geographic populations of the same species are indetectable,indicating a frequent gene flow among them.国家自然科学基金重点项目(30830023);教育部高校博士学科点专项科研基金(20070384041

关于中国现代科技发展历史的反思

本文回顾了最近100多年来现代科学技术事业在中国发展的曲折历程,探讨了科技人才政策、科研项目管理问题和科技体制等问题对中国当代科技发展的作用。通过反思这一历史过程,我们得到了一些常识性却为人们所忽视的结论,希望对当前的科技工作有所裨益

Design and application of mechanical rotation pulse device for water depth and water level measurement

针对超声波、光电等水深水位传感器抗污染能力差,无法实现水深水位同时检测的问题,提出了一种机械式旋转脉冲水深水位测量装置,该测量装置分滚筒提升装置、夹紧装置和控制装置三部分。在重锤下降的过程中,通过实时检测光电编码器输出的旋转脉冲数可以得到重锤下降的位移、速度、加速度,找出重锤下降的加速度突变点,由此判断出蓄水池的水面和固液界面两个临界点,进而计算出蓄水池的水深、水位和沉淀物料厚度。测试结果表明:该装置抗污染能力强,在重锤为510 g、采样时间间隔为0.10 S时测量效果最佳,测量误差小于1%。A new type of mechanical rotation pulse measurement device is proposed,aiming at problem that ultrasonic and photoelectric sensors have poor ability to resist pollution and can't realize water depth and water level detection at the same time.The measurement device points cylinder lifting device,clamping device and control device.In falling process of heavy hammer,the downward displacement,velocity,acceleration of heavy hammer can be obtained through real-time detection on output rotation pulse number of photoelectric encoder.Then the two falling acceleration mutation points of heavy hammer can also be founded when heavy hammer gets into the water and arrives at the solid-liquid interface in a reservoir.Thus the reservoir water depth,water level and precipitation material thickness can be calculated.The measurement result shows that the pollution resistance capability of the device is strong and the water depth measurement error of the device is less than 1 % when the weight of heavy hammer is 510 g and the sampling time interval is 0.10 s.国家自然科学基金资助项目(U1204107;51475459); 河南省高等学校精密制造技术与工程重点学科开放实验室开放基金资助项目(PMTE201318A); 河南理工大学博士基金资助项目(B2012—101); 河南理工大学教改项目(2014JG061); 河南省教育厅科技技术研究重点项目(14B460033

遥感图像中船只目标区域的分割方法

针对高分辨率遥感海面图像中的船只检测问题,提出一种新的区域分割方法。该方法利用小波变换得到适合分形分析的一定尺度的频谱信息,针对图像特点采用改进的差分盒维计算方法进行区域分割,根据小波变换的尺度映射关系将得到的目标区域映射到原图的相应区域,同时利用分维数的特点进行更细致的分割。实验结果证明了该方法的有效性

2020 区块链溯源服务创新及应用报告

致谢单位 本报告由国家自然科学基金重点国际（地区）合作研究项目：中国企业供应链合作创新行为研究（71420107024）提供支持。 同时感谢以下合作企业对案例素材提供的大力支持： 惠氏营养品（中国）有限公司 大连鑫玉龙海洋生物种业科技股份有限公司 人头马君度集团 中粮福临门食品营销有限公司 北京京东世纪信息技术有限公