Spatiotemporal programs and genetics of orientation

Summary A number of migratory bird species have endogenous annual rhythms that regulate the entire annual cycle including the migratory portion. Moreover, captive migrants display inherited migratory activity; this could theoretically also be used by free-living migrants as a time-program for migration. Finally, this heritable migratory activity is oriented in a seasonally appropriate direction even in naive birds. These, characteristics should enable inexperienced migrants isolated from contact with experienced conspecifics to utilize a heritable vector-navigation program to migrate from the breeding grounds to the winter quarters. That is, migrants should reach goal areas they have never experienced by migrating in programmed directions, for as long a period as the genetically fixed time-program for migratory activity induces them to do so. The time-course of migration as established by trapping stations, theoretical influences of environmental variables on migratory programs, and also compensatory behavior and migratory backup measures, are discussed. The present evidence supports the view that a large number of migrants are essentially brought to their wintering areas by vector-navigation systems.     

高校图书采购招标项目用户满意度评价指标体系探析?

确立科学合理的评价指标体系是对高校图书采购招标项目进行用户满意度评价研究的基础,本文结合高校图书采购招标项目的特点,在评价指标体系一般理论的基础上,对高校图书采购招标项目用户满意度评价指标做了层层剖析,并运用德尔菲法对所选指标进行遴选,建立了一套简便的、可操作性强的高校图书采购招标项目用户满意度评价指标体系。     

Discovering non-terminating inputs for multi-path polynomial programs

This paper investigates the termination problems of multi-path polynomial programs （MPPs） with equational loop guards. To establish sufficient conditions for termination and nontermination simultaneously, the authors propose the notion of strong/weak non-termination which under/over- approximates non-termination. Based on polynomial ideal theory, the authors show that the set of all strong non-terminating inputs （SNTI） and weak non-terminating inputs （WNTI） both correspond to tile real varieties of certain polynomial ideals. Furthermore, the authors prove that the variety of SNTI is computable, and under some sufficient conditions the variety of WNTI is also computable. Then by checking the computed SNTI and WNTI varieties in parallel, termination properties of a consid- ered MPP can be asserted. As a consequence, the authors establish a new framework for termination analysis of MPPs.     

高职院校开办新媒体采编与网站管理专业初探

借助互联网、卫星通信、数字电视等高科技平台,以三网融合,信息产品与数字娱乐为载体的新媒体产业迅猛发展,成为国家新的经济增长点。新媒体与传统媒体的交融互补,深刻地改变了社会态势和人们的生活方式。国家的宏观需求和珠三角地区的具体调研都表明,新媒体采编与网站管理人才,在未来十年内都有相当大的缺口。高职学院开办新媒体采编与网站管理专业正逢其时。     

高标清同播背景下广播电视新闻专业实验教学探讨

为应对高标清清同播对广播电视人才培养的新要求,高校广播电视新闻学专业应调整实验教学内容,改革实验教学方法,更新教学理念,培养能够适应高清制作的人才。     

壶口黄河公路大桥加固改造方案比选

通过对壶口黄河公路大桥病害的分析，提出了加固改造方案，并结合实际情况，进行了方案比选及经济比较。     

SPEX1403激光Raman光谱仪的计算机功能开发——Ⅰ.标峰程序

作者提出了用一阶导数谱辅助求 Raman 光谱峰值的新方法,较好地解决了谱峰与噪音的识别问题;编制了 SPEX_(1403)激光 Raman 光谱的标峰程序,具有10种不同大小尺寸的绘图功能、9种不同的字号供标峰选用,操作分为自动、半自动和手动三种方式,具有用于图注、实验条件说明的打字,存、取及复制标峰谱图等功能,克服了一般标峰过程中常见的弊病,标峰效果满意.     

双向选择招聘公务员的优化方案

本文结合2004年全国大学生数学建模竞赛 D 题“公务员招聘”，进行量化分析，建立数学模型，给出双向选择招聘公 务员的优化方案。     

SPEX 1403激光Raman光谱仪的计算机功能开发——拉曼光谱重迭谱峰的分峰程序

本文使用图形辅助输入谱峰参数的方法,并采用把谱峰参数转换到[0,100]闭区间和阻尼非线性最小二乘法进行谱线拟合,从而将重迭的 Raman 谱峰分开.程序中阻尼因子的选择,避免了迭代中的发散和可行域之外的假收敛.本程序在 IBM PC/XT 机上,用 TurboPascal 语言编制.     

矿山微机辅助管理系统

本文介绍江西德兴铜矿矿山微机辅助管理系统。该系统采用结构化分析、结构化设计及结构化编程的方法,用DBASE关系数据库语言开发,在微机IBM-PC/XT上实现。系统由六个子系统构成,程序容量1M字节,具有多种处理功能,能打印出52种不同的报表。