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91.
民主教育家鲁立刚系20世纪前半叶湖南著名的地理教员和中学校长。他潜心教育事业,50岁之前教书育人,之后著书立说。其教育思想主要有尊师重教及重名轻利现、用人唯贤及言传身教现、救国育才及文理并重现。他身体力行的教育实践与“朴实沉觳”的教育思想至今熠熠生辉。 相似文献
92.
With advanced prediction modes of intra prediction, intra coding of H.264/AVC offers significant coding gains compared with previous video coding standards. It uses an important tool called Lagrangian rate-distortion optimization (RDO) technique to decide the best coding mode for a block, but the computational burden is extremely high. In this paper, we proposed an improved fast intra prediction algorithm including block type selection and mode decision algorithm based on analysis of edge feature of a block. Our algorithm filters out unlikely block type and candidate modes to reduce the RDO calculations. Experimental results showed that the proposed algorithm can reduce the computation complexity of intra prediction from 52.90% to 56.31%, with 0.04 dB PSNR degradation and 2% increase of bit rate. 相似文献
93.
随着计算机关系型数据库语言的丰富与完善,特别是FOXBASE最新一代的数据库管理系统软件的出现,以及各种管理系统开发工具软件的使用,使得在开发一个计算机系统时,最感困难和复杂的已不再是具体程序的编写,而是整个系统的规划。大连市委组织部开发的《大连市组织工作信息管理网络系统》即是整个系统的规划在局域网络中的总体设计的想法和思路。 相似文献
94.
李琦 《洛阳工业高等专科学校学报》2004,14(3):43-44,48
从对现代汽车新技术的介绍入手,详细分析了当前汽车修理行业所面临的几大挑战以及应对的措施,探讨了汽修专业教育存在的问题.指出要根据最新的汽车技术发展,安排教学工作,才能够培养出在几方面都能满足实际需要的专业人才。 相似文献
95.
A clinical task-based interview can be seen as a situation where the interviewer–interviewee interaction on a task is regulated
by a system of explicit and implicit norms, values, and rules. This paper describes how documenting and mapping triadic interaction
among the interviewer, the interviewee, and the knowledge negotiated can be used to increase procedural replicability of the
interview and accuracy of drawn conclusions about the interviewee’s thinking process. Excerpts from interviews with 25 inservice
mathematics teachers working on a task to make up a problem whose solution requires division of two fractions are discussed.
The excerpts illustrate the relationship between methodological decisions taken by the interviewer during the interview and
the applicability of the interview output to the research questions. A divergent analysis of the interviews with these teachers,
which spanned over two years and were conducted by four interviewers, is used to offer a framework for analyzing data collected
in clinical task-based interviews. 相似文献
96.
97.
1IntroductionBackground subtraction methods are extensively ex-ploited for moving object detection in videos in manyapplications ,such as traffic monitoring[1],human mo-tion capture[2]and video surveillance[3]. The centralidea behind such methods is to segment foreground ini mage sequences taken from a fixed camera by com-paring each newframe to a model of the scene back-ground . Therefore , correctly and efficiently modelingand updating the background model is one of the mostchallenging aspec… 相似文献
98.
99.
吴琦 《长江工程职业技术学院学报》2002,19(1):61-62
介绍了控件的主要属性、事件和方法,以及利用控件开发局域网通信程序的方法。WinsockWinsock 相似文献
100.
Takashi Sagawa 《浙江大学学报(A卷英文版)》2018,19(1):80-85
Composite materials of Fe/Al2O3, which consist of small particles of iron supported by thermally stable alumina even at 500–700 °C, have been widely used in the water-gas shift reaction for natural gas reforming. Therefore, Fe/Al2O3 is one of the promising candidates for re-transformation of exhausted CO2 into fuels such as alcohols and hydrocarbons. The development of a CO2 reforming system using the composite materials of Fe/Al2O3 through CO2 reduction to CO, dissociation of water into hydrogen, and methanol synthesis has been investigated. It was found that dry and steam (i.e. wet) reforming of CO2 produced almost the same amount of CO. At a temperature above 500 °C, maximal and saturated yields of CO and H2 from CO2 and water were obtained. However, this CO2 reforming system requires higher-pressure conditions from several tens to hundreds standard atmospheric pressure in order to achieve high yield and selectivity for methanol production. In this study we developed the modified CO2 reforming system by the utilization of Ni and/or Cu instead of Fe in order to obtain other types of useful products such as CO, CH4, and carbon, more efficiently and selectively under atmospheric pressure. When Ni or Cu was used, conversion of CO2 was reduced to 76%, while 9% of methane was detected in the case of Ni. On the other hand, though the CO2 conversion reduced half of the Fe, the selectivity of CO from CO2 increased to 95% in the case of Cu. 相似文献