科创中国

高中物理教科书中编入了诸多中国传统文化的素材.通过以应用比较广泛的三个版本的物理教科书中的相关内容为研究对象,进行分析和解读,认为教科书在引入传统文化时,应更多地关注其与学科内容间的联系,充分利用古诗词的魅力,并以多种方式进行展示,将传统文化元素与物理学知识更好地融合,发挥传统文化对物理课程的教育教学功能.

肝着liver fixity:a diseased condition arisingwhen qi and blood of the liver meridian becomedepressed and stagnant The so-called肝着,used first in Synopsis ofGolden Chamber (《金匮要略》),describes a path-ological condition caused by stagnation of qi andblood in the liver and characterized by thoracic

传统与时尚结合的关键是看对传统元素的运用能否在体现中国深厚传统底蕴的同时寻求创新.通过对莨绸服饰创新发展的阐述,对天意品牌运用茛绸的作品作介绍,以及对天意莨绸服饰部分作品进行深入分析,从设计的角度找出中国传统元素经过创新改良后的时尚亮点,天意莨绸服饰将传统元素巧妙地运用于现代服饰设计中,成功地向传统借鉴了时尚,完美地诠释了对传统的传承和创新.

Due to the insufficiency of utilizing knowledge to guide the complex optimal searching, existing genetic algorithms fail to effectively solve excavator boom structural optimization problem. To improve the optimization efficiency and quality, a new knowledge-based real-coded genetic algorithm is proposed. A dual evolution mechanism combining knowledge evolution with genetic algorithm is established to extract, handle and utilize the shallow and deep implicit constraint knowledge to guide the optimal searching of genetic algorithm circularly. Based on this dual evolution mechanism, knowledge evolution and population evolution can be connected by knowledge influence operators to improve the configurability of knowledge and genetic operators. Then, the new knowledge-based selection operator, crossover operator and mutation operator are proposed to integrate the optimal process knowledge and domain culture to guide the excavator boom structural optimization. Eight kinds of testing algorithms, which include different genetic operators, are taken as examples to solve the structural optimization of a medium-sized excavator boom. By comparing the results of optimization, it is shown that the algorithm including all the new knowledge-based genetic operators can more remarkably improve the evolutionary rate and searching ability than other testing algorithms, which demonstrates the effectiveness of knowledge for guiding optimal searching. The proposed knowledge-based genetic algorithm by combining multi-level knowledge evolution with numerical optimization provides a new effective method for solving the complex engineering optimization problem.

跪坐是唐代以前中原汉族合乎礼仪的标准坐姿,宋代以后则盛行垂足坐.在小学语文教材中,有部分插图所绘的坐姿不符合历史事实,多将唐代以前流行的跪坐误绘为宋代以后盛行的垂足坐.桌椅等与垂足坐相适应的高足家具唐代以后始普遍流行,在反映唐代以前的历史插图中,不应出现桌椅等家具.中国古代的酒具、茶具和农具,其材质和样式随着时代的发展而有所不同,绘制其插图时,不能有悖于当时的时代背景.

针对物流信息平台中信息资源采集系统建设的不足,提出建立基于Nutch的网页资源定向采集系统,并对中文分词、主题相关度分析、结果排序、正文解析等关键模块进行重点探讨.最后在一定条件下进行了实验,并分析了实验结果.

以中药鼻炎康提取液、复方珍珠暗疮提取液和VC银翘提取液为研究对象,研究反渗透技术在提取液浓缩过程中的应用.试验结果表明,经反渗透工艺能有效脱水60%以上,中药的主要有效成分保留率达90%,膜通量稳定在14 L/(m2·h),清洗后膜通量恢复80%以上.

从宏观和微观两个层面对金融危机背景下影响我国物流企业跨国并购的相关因素进行了分析,并提出了应对策略.

早在20世纪30年代,当马林诺夫斯基阅读了费孝通的《汇材经济》给予了高度评价,并指出费先生的《汇材经济》代表了社会学的中国学派的形成.费先生逝世已经7周年,但是他一生践行的社会学人类学研究方法,依然为社会学的"本土化"有着重要的启发.实现中国社会学的"本土化"的关键是社会学古人类学的紧密结合,只有这样,才能真正创立社会学的"中国学派".

中国宏观经济数据表明,存货总投资对解释GDP波动具有非常重要的作用.进一步利用采购经理人指数(PMI)数据对产成品存货投资和原材料存货投资进行研究,本文发现前者具有逆周期性,而后者表现出顺周期性.本文构建了一个具有产成品和原材料两种存货的动态宏观模型.利用贝叶斯动态方法,对模型进行了整体估计.结果表明,模型动态很好地解释了数据中的经验事实;两类存货投资的周期性特征主要源于最终需求冲击,该结论印证了2008年金融危机中,需求大幅回落是造成中国经济波动的最主要因素.