MnS细微粉体的制备与工艺研究

在微波水热条件下,以MnCl2.4H2O和C2H5NS为原料制备了MnS细微粉体.研究了微波水热温度、保温时间、反应物浓度、反应物pH对产物结构及形貌的影响,并采用X-射线衍射仪、扫描电子显微镜等分析手段表征了MnS细微粉体的显微结构和形貌,确定了制备单相MnS细微粉体的最佳工艺.     

微波电子线路课程教学设计

微波电子线路课程是一门电子专业的专业基础课。对微波电子线路课程的教学进行研究和探讨,教学实践证明其有效性。     

基于碎片重组的动态数字出版模型研究

大数据具有数量大而密度低的特点,正在加剧人们对知识获取的困境。传统的知识出版业以本或以篇为单位的出版方式成为制约人们有效检索和利用知识的瓶颈。针对这一问题,文章提出基于碎片重组的动态数字出版模型,首先研究了知识碎片产生的社会背景和对科学研究所带来的科学价值,以及技术发展环境对当前社会化知识碎片阅读的推动作用;其次讨论了动态组合的数字出版模型,以及实现动态数字出版中所考虑的关键技术。本研究不仅发展了知识组织的理论,还推进了知识的深度检索、小粒度知识获取和高效利用的方法,大大提高了知识出版与传播的效率。     

金纳米粒子的制备与表征

以4.5 G PAMAM（4.5代聚酰胺-胺型）树状大分子为保护剂,利用微波法还原HAuCl4溶液制备金纳米粒子。考察了在同一照射条件下,4.5 G PAMAM与HAuCl4不同物质的量比对金纳米粒子大小及形状的影响。利用紫外可见分光光度计、透射电子显微镜以及X射线衍射分析对其进行了表征。结果表明,照射时间相同时,以30 s为例,当4.5 G PAMAM与HAuCl4物质的量比为5时,得到的金纳米粒子最小;随着4.5 G PAMAM与HAuCl4物质的量比值的减小,金纳米粒子变大,且发生了不同程度的聚集。     

动态战略适应视角下的学部制改革成效分析范式

动态战略适应视角是从大学战略管理中提出来,学部制改革作为大学内部治理结构中重要的战略选择,涉及高校内人、财、物多方面整合。基于动态战略适应理论的分析框架,即大学战略与大学所处的内外部环境、所拥有的资源以及大学内部组织之间的适应状态,提出学部制改革成效分析范式,即学部制改革的环境适应、资源适应及组织适应。     

认知情态表达的动力图式研究及其教学应用

本文从认知语义学的动力图式角度对情态表达进行研究,继承了动力图式（Force—Dynamic）中对于“趋势”动词命题分析的优势,同时弥补了以往FD研究对含有比较多系动词的命题解释力不强的缺陷。将情态表达的“非现实语义力”等级数量的概念带入FD模式中,重点探讨了情态中心词表达语义力的等级数量划分。使得动力图式更加清晰,释解更为有力。同时指出情态表达的动力图式展现,在英语教学中发挥的认知心理学作用。     

Beyond direct neighbourhood effects: higher-order interactions improve modelling and predicting tree survival and growth

It is known that biotic interactions are the key to species coexistence and maintenance of species diversity. Traditional studies focus overwhelmingly on pairwise interactions between organisms, ignoring complex higher-order interactions (HOIs). In this study, we present a novel method of calculating individual-level HOIs for trees, and use this method to test the importance of size- and distance-dependent individual-level HOIs to tree performance in a 25-ha temperate forest dynamic plot. We found that full HOI-inclusive models improved our ability to model and predict the survival and growth of trees, providing empirical evidence that HOIs strongly influence tree performance in this temperate forest. Specifically, assessed HOIs mitigate the competitive direct effects of neighbours on survival and growth of focal trees. Our study lays a foundation for future investigations of the prevalence and relative importance of HOIs in global forests and their impact on species diversity.     

Dynamic Systems Theory and Team Sport Coaching

This article examines the theory of dynamic systems and its use in the domains of the study and coaching of team sports. The two teams involved in a match are looked at as two interacting systems in movement, where opposition is paramount. A key element for the observation of game play is the notion of configuration of play and its ever-changing shape, namely through phases of contraction and expansion, and its moving location on the court or the field. Analysis of specific configurations of play by players, or external observers, is discussed in light of the notion of prototypical configuration of play and the process of learning by analogy. Offensive and defensive matrices of play, encompassing play in movement as a systemic whole, are presented as advance organizers that provide players with advance strategic representations of reference key points in the unfolding of game play. These various concepts, along with elements of movement in play, are integrated in a model intended to help players and observers grasp a systemic view of action play and its underlying fulcrums.     

基于VRML-Java动态三维虚拟场景的建立

本文对基于VRML-Java的虚拟现实技术在动态三维虚拟场景建立中的应用进行了研究,提出和实现了VRML场景对象建模的有效方法,实现了VRML场景对象的动态生成、交互式的结构布置等功能。     

基于构件动态迁移解决MMORPG负载问题的研究

随着在线玩家人数迅速增长,MMORPG的负载问题也凸显出来.当前的主要解决方法是以地图划分游戏世界,利用服务器集群让每一台服务器管理一小块地图.本文提出了以场景划分游戏世界,并把MMORPG构件化,抽象出场景构件和角色构件,每一台服务器部署若干个场景构件,通过特定负载均衡算法驱使超负载服务器上的场景构件动态迁移,从而实现整个服务器集群负载均衡.通过实现构件原型并进行负载均衡实验,证实该解决方法切实可行.