高等职业教育之教学实训空间模式研究

教学实训空间模式能够有效地处理教学、实训和空间三者之间的关系．有利于提高高等职业教育的课程教学质量和实训水平。因此,分析教学实训空间模式的构建．探讨教学实训空间模式的应用．具有现卖的理论意义和实践价值。     

面向食品质量与安全专业食品卫生学课程的教学改革研究

随着社会经济的快速发展,食品安全问题成为日益关注的热点,因此,面向食品质量与安全专业的核心专业课程教学改革具有重要的意义。鉴于此,本文结合浙江工商大学食品质量与安全这一国家特色专业,从理论教学、实验教学和实践教学等三个方面开展了传统的食品卫生学专业课程教学改革,实践证明效果显著,旨在创新人才培养的有效性教学体系的形成与发展,对培养具有国际化视野的相关人才具有深远的意义。     

大学生职业生涯规划现状调查——以中国民航大学为例

为了能掌握大学生职业生涯规划的真实情况,以便更有针对性和开创性地开展职业指导工作．笔者采取随机抽样和个别谈话相结合的方式,从自我认知、工作世界认知、职业生涯规划认知等三方面对中国民航大学的1200余名学生展开调查。     

银川平原浅层地下水资源和水盐调控研究

在阐述银川平原浅层地下水形成分布规律性的基础,首次在该地区采用三维地下水有限差分模型计算了地下水资源量、补排组构和可利用量。论证和提出用有害盐量取代以往惯用全盐量评价盐害和计算排引比的传统做法,通过水盐均衡计算指出30多年来灌区——直处在脱盐状态。论证和提出了银北灌区各类水量的宏观调控意见,动态模拟计算了不同规划水平年引、排水9套方案,提出了不同地区和采用不同方案引用黄河水量和开发利用地下水量的意见。     

ASP.NET数据验证机制研究

数据验证是Web程序设计的重要环节,本文针对ASP.NET中验证控件的使用方法进行详细阐述,并结合实例说明在ASP.NET中数据验证的方便性与灵活性.     

薄膜滤波器的研制

一、引言 光学滤波器被广泛地应用于光纤通信,民用高科技产品中的光电显示,航空航天以及军事技术当中.是一类非常重要的光无源器件,由于它的功能不可替代,而且用量较大,所以已形成了一个新兴产业.     

基于Linux的内核数据捕获技术研究

以Linux作为数据捕获的平台,以捕获系统的所有活动特别是入侵者的加密会话为目标,提出了一种利用Rootkit技术,通过替换系统调用sys_read,sys_write,sys_open,sys_socketcall等来从内核捕获数据的技术。     

Wet-chemical synthesis of two-dimensional metal nanomaterials for electrocatalysis

Two-dimensional (2D) metal nanomaterials have gained ever-growing research interest owing to their fascinating physicochemical properties and promising application, especially in the field of electrocatalysis. In this review, we briefly introduce the recent advances in wet-chemical synthesis of 2D metal nanomaterials. Subsequently, the catalytic performances of 2D metal nanomaterials in a variety of electrochemical reactions are illustrated. Finally, we summarize current challenges and highlight our perspectives on preparing high-performance 2D metal electrocatalysts.     

Understanding the topic evolution of scientific literatures like an evolving city: Using Google Word2Vec model and spatial autocorrelation analysis

Topic evolution has been described by many approaches from a macro level to a detail level, by extracting topic dynamics from text in literature and other media types. However, why the evolution happens is less studied. In this paper, we focus on whether and how the keyword semantics can invoke or affect the topic evolution. We assume that the semantic relatedness among the keywords can affect topic popularity during literature surveying and citing process, thus invoking evolution. However, the assumption is needed to be confirmed in an approach that fully considers the semantic interactions among topics. Traditional topic evolution analyses in scientometric domains cannot provide such support because of using limited semantic meanings. To address this problem, we apply the Google Word2Vec, a deep learning language model, to enhance the keywords with more complete semantic information. We further develop the semantic space as an urban geographic space. We analyze the topic evolution geographically using the measures of spatial autocorrelation, as if keywords are the changing lands in an evolving city. The keyword citations (keyword citation counts one when the paper containing this keyword obtains a citation) are used as an indicator of keyword popularity. Using the bibliographical datasets of the geographical natural hazard field, experimental results demonstrate that in some local areas, the popularity of keywords is affecting that of the surrounding keywords. However, there are no significant impacts on the evolution of all keywords. The spatial autocorrelation analysis identifies the interaction patterns (including High-High leading, High-Low suppressing) among the keywords in local areas. This approach can be regarded as an analyzing framework borrowed from geospatial modeling. Moreover, the prediction results in local areas are demonstrated to be more accurate if considering the spatial autocorrelations.     

考虑关税和补贴的跨国生产业务外包决策与优化

在随机需求下研究由一个境外集成制造商、一个国际运输服务提供商和一个供应商构成的跨国生产业务外包决策问题.考虑制造商所在国存在进口关税、供应商所在国存在补贴,定量分析制造成本、运输成本、关税成本和出口补贴对跨国生产业务外包决策的影响;依次建立三级独立主从决策模型和联盟主从决策模型,分析收益分享和成本分担对决策的影响.结果 表明对于跨国生产业务外包决策与优化,当关税成本计算考虑运输费用和保险费用时,跨国生产业务难以实现协调;联盟博弈可以压缩博弈层级进而改善跨国供应链绩效;关税税率提升使各方利润和整体利润减少,削弱供应商的领导地位、加强制造商的地位;出口补贴增加可以提高各方利润及整体利润,加强供应商的领导地位、削弱制造商的地位;各方仅进行收益分享可以改善供应链利润,但仅进行关税或运输成本分担会恶化供应链利润.