家、国观念冲突下的双重悲剧——对鲁迅小说《药》主题的再探讨

鲁迅先生的小说《药》呈现出一种父母对儿子的浓重亲情,反映出人们意识中根深蒂固的个人小家庭观念。家庭观念和国家观念的激烈冲突,造成的是两败俱伤的双重悲剧。     

京西石佛村摩崖造像群

石佛村为北京市门头沟区永定镇辖村,明代成村,毗邻戒台寺,是一座因摩崖造像群的佛像而得名的小村庄.村落至今还保留昔日人们进香的古道,这条由青石铺成的蜿蜒曲折的古道,见证了石佛村古老而沧桑的历史.     

An experimental setup for study of photoresponse of high T c superconductors

We have developed an experimental setup that has been proven suitable for the study of photoresponse of high T _c superconductors. The distinguish feature of this experimental setup lies mainly in the data acquisition system which is equipped with computer as well as the IEEE-488 interface bus, which ensures the accuracy to experimental results. Using the experimental setup, the optical response to laser radiation in high-T _c superconductors has been examined, both of bolometric effect and nonequilibrium optical response are revealed. The project was supported by the National Natural Science Foundation of China     

煤矿井下单片机控制电动机综合保护器的设计与实现

针对煤矿工作面电动机供电环境复杂、带载启动易发生误动作等特点,提出了综合保护装置的总体设计思路。确定了综合保护装置采用ADuc12单片机为核心处理器、与地面的通信方式和故障处理方法。     

多媒体条件下的英语学习模式

由于我国与国外在经济、科技、文化等各个领域交流的越来越频繁,对英语人才的需求是越来越多,要求也越来越高,所以我国非常重视对英语人才的培养,很多地方从小学就开设英语课.而英语毕竟是一门外语,学习者要想达到一定的程度,得在学习方面具有很强的自主性.     

我国普通高校体育教学课型研究

调查显示,现阶段高校体育教学课型的设置缺乏与教学目标之间对应和衔接的研究,教学实践中表现出较大的随意性.运用归纳法和逻辑研究方法,对不同课型的内容和特征进行分析,高度概括出了基础体育课、选项体育课和选修体育课三类课型,而这三类课型基本涵盖了目前高校体育教学所有课型的内容和特征.     

经济发达地区地产对农户多重效用模型及实证研究--以浙江省海宁市为例

农村集体中农民个人的二重性和集体土地所有权的基本矛盾是现行农村集体土地所有制的基本特征,由此决定了地产对农民具有多重效用,全国百强县（市）之一的浙江省海宁市的调查资料证明了地产对农民的多重效用模型,目前地产对农民最重要的效用是“生活保障效用,提供就业效用,直接收益效用”。影响地产效用的因素的地域性,非农收入水平对上述三种效用的影响明显,要创造条件促进达地区的以及非农为主的兼业农户彻底离开农业,即率先实现工业化过程中的第二阶段转移。     

煤矿井下电力线通讯系统的设计与实现

针对目前煤矿使用的信息传输系统,提出以煤矿井下铺设好的低压电力线作为通讯介质而建立的信息传输系统,通过对通讯技术、电力线特性及煤矿井下特殊环境的分析和研究,采用了基于Lonworks总线技术的电力线载波通信方式,完成了煤矿井下电力线通讯系统的设计和研发,经实际测试实现了载波通讯,为产品的开发奠定了基础。     

Stomatocyte structural color-barcode micromotors for multiplex assays

Artificial micromotors have a demonstrated value in the biomedical area. Attempts to develop this technology tend to impart micromotors with novel functions to improve the values. Herein, we present novel structural color-barcode micromotors for the multiplex assays. We found that, by rapidly extracting solvent and assembling monodispersed nanoparticles in droplets, it could form stomatocyte colloidal crystal clusters, which not only showed striking structural colors and characteristic reflection peaks due to their ordered nanoparticles arrangement, but also provided effective cavities for the integration of functional elements. Thus, the micromotors with catalysts or magnetic elements in their cavities, as well as with the corresponding structural color coding, could be achieved by using the platinum and ferric oxide dispersed pre-gel to fill and duplicate the stomatocyte colloidal crystal clusters. We have demonstrated that the self-movement of these structural color-barcode micromotors could efficiently accelerate the mixing speed of the detection sample and greatly increase the probe–target interactions towards faster and more sensitive single or multiplex detection, and the magnetism of these barcode micromotors enables the flexible collection of the micromotors, which could facilitate the detection processes. These features make the stomatocyte structural color-barcode micromotors ideal for biomedical applications.     

基于STM32的矿用多接口通讯管理器硬件设计

针对目前煤矿井下电气设备的接口种类多、多种现场总线通信方式共存的现状,提出了多接口通讯管理器的硬件设计思路。该管理器以Cortex STM32芯片为核心处理器,可实现各类接口之间的信号转换、互联。