以十八大会议精神为指引初探良好学风形成的措施

教育是民族振兴和发展的基石。党的十八大报告中指出,坚持教育优先发展,着力提高教育质量。高等学校作为培养社会主义合格建设者和可靠接班人的重要阵地,在立德树人、教书育人方面有着不可推卸的责任,而学风的建设情况必将是高校教育质量高低的有效表征。文章对我校学风建设中存在的问题及改进措施提出了相关建议。     

大数据技术在漳州生态环境保护中的应用实践

随着物联网、云计算、大数据、移动互联网等新兴信息技术的不断发展和深入应用,环境监管和信息化面临着重大的发展机遇和挑战。环境管理制度的落实离不开精细化管理,精细化管理离不开信息化的支撑。针对生态环境精细化监管,如何利用大数据手段分解责任、量化管理、精准找源、靶向治理,成为政府部门亟待解决的难题。该文从分析漳州市环境监管存在的问题入手,提出环保大数据技术解决思路,构建环保大数据应用架构及基于大数据的漳州市"智慧环保"解决方案。     

桂林市四湖水系水环境现状及水质评价

为了进一步监测、控制以及优化桂林市四湖景区的水环境,明确该湖区水环境变化特征以及主要影响因子,分析2008年春、夏季四湖水系的10个样点监测数据,采用因子分析法的主成分分析方法,结合水质标识指数,研究该湖区水质状况及变化趋势.结果从时间变化上看,春夏季水质较好且变化不大,春季的水质稍优于夏季;从四湖水质受控因子上看,春夏季四湖水的第一主成分都为营养盐,它对水质影响最大,是控制治理的主因子.     

胰岛素原转化酶基因克隆及序列测定

目的研究胰岛素抵抗和胰岛素缺乏与Ⅱ型糖尿病发病机制的关系.方法Ⅱ型糖尿病普遍存在胰岛素、胰岛素原障碍,胰岛β细胞分泌出胰岛素原经胰岛素原转化酶(Prohormone convertase,PC2)去除部分肽段后形成胰岛素.结果与结论若PC降解功能异常可导致胰岛素原及其代谢产物不适当分泌引起胰岛素缺乏,研究该基因分布和表达的变化,对探讨糖尿病胰岛素抵抗的发病机制奠定基础.     

Development and study on automatic balancer based on counter weight by magnetic force

Rotating machines are very sensitive to mass unbalance which has a harmful effect on its running accuracy and service life. Therefore,a variety of dynamic balancing methods and devices are studied to reduce the vibration caused by mass unbalance. On-line active balancing is a new balancing procedure which is more convenient and precise than the previous methods. In this paper,an electromagnetic balancer based on ring coils and permanent magnets is presented. The balancer has a simple structure and the self-locking function without clutch,and transfers power by the non-contact electromagnetic field. In order to justify the rationality of its design,a two-dimension(2D) electromagnetic finite element model is conducted to verify that this magnetic circuit has no flux leakage and saturation. A three-dimension (3D) 1/10 model of the balancer is built to obtain the self-locking torque and driving torque. Based on the research work above,an electromagnetic balancer is developed. By testing the balancer using COCO80,it is verified effective to reduce the rotor unbalance at the speed of 1300 r/min.     

基于SWAT模型的布尔哈通河流域径流模拟研究

气候条件的变化对水资源影响十分显著,为探讨中朝俄界河图们江流域水资源与气候条件变化的关系,以布尔哈通河流域为研究区,用土地利用数据、数字高程模型数据、土壤类型数据、水文数据和气象数据构建了适用流域的SWAT(Soil and water assessment tool)模型.模型以1995～2015年为基准期,对布尔哈...     

复杂网络上的一种综合型SIRS模型

提出一个综合考虑人工免疫、反馈机制、群体密度和群体游动等多种因素的SIRS疾病传播模型,通过理论分析和计算机模拟对该模型的动力学行为进行详细研究.结果表明:人工免疫对系统的稳态感染比例和传播阈值都有影响;反馈机制仅对系统的稳态感染比例有影响,但对传播阈值没有影响;群体密度越大,系统的稳态感染比例也越大,但传播阈值反而越小.另外,在群体密度不太大时,群体游动时的稳态感染比例要高于群体静止时的稳态感染比例,这说明群体游动更有利于疾病的传播.     

关于两类控制算子族

本文在拓扑向量空间上给出“控制算子族”的定义，并对“加法控制算子族”与“凸－控制算子族”得出共鸣定理，从而推广了前人的相应结果。     

THE STUDY OF THE PAVEMENT SETTLEMENT STANDARD INDUCED BY SHALLOW BURIED TUNNEL TO UNDER- TRAVERSE HIGHWAY

Now the surface settlement induced by shallow buried tunnel to under-traverse highway, mostly adopt the empirical value, 3 cm, acquired from Beijing or Shenzhen metro, which is regarded as the controlling standard. But to more project, tunnel under-traverse highway, we must decide the controlling standard flexibly, which should base on the pavement service function and the pavement condition. The thesis, based on the pavement evenness and running comfort ability in the view of completing the pavement service function, supposes the longitudinal pavement settlement cross sec- tion as a quadratic parabola, and gets the maximal settlement value in the range of longitudinal pavement influence when the tunnel is under-traverse highway perpendicularly. Then the controlling standard is decided. As Wenxiang Tunnel under- traverse Lianhuo Freeway on Zhengzhou-Xi＇ an Passenger Dedicated Railway Line for an example, the settlement controlling standard is acquired, and we hope it has an direction and reference value to similar tunnel construction.     

Hilbert变换与小波变换在数字信号调制识别中的应用

利用MATLAB的“M”文件蝙程，采用Hilbert变换与小波变换相结合的方法对2ask，4ask，2fsk，4fsk，2psk，4psk六种数字信号进行瞬时幅度和相位的特征提取，进而进行调制识别。实验结果表明此方法可以在信噪比较低的情况下对信号进行有效的识别。