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Search Results: 1 - 10 of 249671 matches for " 李政 "
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谈谈DOS系统的使用与管理

计算机系统应用 , 1993,
Abstract: 本文针对目前国内许多PC机用户在DOS系统使用和管理上存在某些问题,提出几点建议和技术措施。
dBASE与WPS的联合使用

计算机系统应用 , 1993,
Abstract: 本文通过几个实例,说明将dBASE与WPS联合使用对扩展系统功能、提高工作效率、简化程序设计所起 的作用。在具体实现上采用了一些技巧。
数据库结构描述文件的几种特殊用途

计算机系统应用 , 1997,
Abstract: 大家知道,在FORPRO、FoXBASE中,对于任意一个打开的数据库(源库),可用COPYTO<文件名>STRUCTUREEXTENDED建立一个对应的结构描述文件。结构描述文件也是数据库,它含有四个字段:FIELD-NAME、FIELThTYPE。LIELD-LEN、FIELD-DEC,分别用于存放源库字段名、字段类型、字
VFP5.0通用查询模块的设计与实现

计算机系统应用 , 1999,
Abstract: 查询模块是数据库管理系统中不可缺少的部分。本文给出一种在 VFP5. 0下实现的可对任意指定的表、按各种要求进行查询的通用模块的设计思想和方法。该模块可方便地生成查询条件,任意指定输出字段和排序字段,具有较强的实用性。
通用学生成绩管理系统的设计与实现

计算机系统应用 , 1994,
Abstract: 本文介绍一个通用的学生成绩管理系统的设计方法,给出主要清单。该系统全部用FoxBASE编程实现。其中在数据录入、新库结构的形成、专业课的标识、成绩的统计、特别是数据库的横向统计等方面都采用了比较先进的技术,使程序具有很强的通用性和技巧性。
中国特色的调解制度研究

比较法研究 , 2011,
Abstract:
鞍钢宽厚板厂钢结构安装和问题处理

工业建筑 , 1997, DOI: 10.13204/j.gyjz199704015
Abstract: 鞍钢宽厚板厂钢结构安装和问题处理李政(鞍钢建设公司114001)鞍钢宽厚板厂主厂房建筑面积9.417万m2,全长726m,宽156m,钢结构安装量约1.6万t,全部由鞍钢建设公司安装,吊装中总的质量是好的,但也出现了一些问题。1屋架钢材裂缝CD跨行3...
职业教育现代学徒制的价值审视——基于技术技能人才知识结构变迁的分析

- , 2017, DOI: 10.16382/j.cnki.1000-5560.2017.01.006
Abstract: 摘要 从前工业社会到后工业社会,技术技能人才的知识结构经历了从一维到四维的转变。后工业社会技术技能人才的四维度知识结构包括经验型技术知识、实体型技术知识、方法型技术知识与理论型技术知识,它们之间具有独特的运行机制与形成机制。我国职业教育人才培养模式必须要结合技术技能人才知识结构的变迁进行深度变革,充分发挥现代学徒制在后工业社会技术技能人才培养中的关键作用。
Abstract: From pre-industrial society to post-industrial society, technicians' knowledge structure has changed from one dimension to four dimensions. In post-industrial society, technicians' four-dimensioned knowledge structure includes:experiential technical knowledge, material technical knowledge, methodological technical knowledge and theoretical technical knowledge. Each has its specific mechanisms of development and operation. Firstly, experiential technical knowledge takes the form of skills and experiments, which tends to be personalized, emotional, tacit, pre-scientific, system-integrated, situational, etc. Material technical knowledge takes the machine as its carrier, which is semi-theoretical and semi-empirical. Material technical knowledge is utilized to create, accumulate and implement the knowledge through operating and controlling machines. Methodological technical knowledge is a knowledge of design and decision, which contributes to the design of working process and decision-making. Secondly, the development of experiential technical knowledge and material technical knowledge requires training and internalization in workplaces. The development of methodological technical knowledge relies on the transfer and insight in the mentoring apprenticeship. The development of theoretical technical knowledge requires accumulation and the sublimation of learning in schools. In recent years, there have been several defects in the professional training modes in vocational colleges. Firstly, the ways of collaboration between vocational colleges and enterprises have helped little to train qualified technicians for the manufacturing industry. In addition, the collaboration has provided ineffective learning experience. Last but not least, the collaboration has not been designed to provide enterprises with a platform for operation. Therefore, it's imperative to revolutionize the professional training modes, including the transformation of technicians' knowledge structure. Modern apprenticeship offers a new perspective of the transformation. Firstly, it has established close relationship between students and the production situation, which can help students gain plenty of first-hand knowledge from the production process. Secondly, based on a stable mentoring relationship, modern apprenticeship can help students gain methodological technical knowledge needed in modern
二倍体与四倍体绿玉树乳汁管分布特征的比较
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热带亚热带植物学报 , 2007, DOI: 10.3969/j.issn.1005-3395.2007.4.009
Abstract: 采用石蜡切片法、离析法以及徒手切片3种方法研究了绿玉树(euphorbiatirucallil.)乳汁管的分布,并对二倍体和四倍体植株茎的乳汁管分布和数量进行了比较研究。结果表明,绿玉树乳汁管为无节型;初级乳汁管主要分布在木质部与韧皮部之间,在两年生茎的髓部也有分布;次级乳汁管以多级分支的形式无规则地散布在韧皮部中;末级乳汁管分布在皮层(或周皮)下部。随着茎成熟度增加,初级乳汁管数量和直径随之增加,直径增加到一定时便停滞,以增加数量的方式来缓解液压。与二倍体相比,相同成熟度的四倍体绿玉树乳汁管数量和直径都显著减少,其中嫩茎的初级乳汁管数量减少了5.5条,直径减少了8.4μm;一年生枝条初级乳汁管数量减少了10.7条,直径减少了9.6μm。
Development of Workflow Definition Tool for Office Automation System
办公自动化中流程定义工具的开发


计算机系统应用 , 2007,
Abstract: 工作流系统是办公自动化系统中的重要组件,而流程定义则是工作流系统所有活动的基础,在工作流系统中占有非常重要的地位.论文以某通信公司的办公自动化系统为背景,从体系结构、系统功能和设计思想等方面对其中的流程定义工具进行了分析,最后,给出了该流程定义工具的运行结果.
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