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张传强 《济南职业学院学报》2007,(3):78-80
随着多媒体技术的迅速发展,当代教育也在经历着巨大的变革,而以培养与国际接轨的应用型人才为本的大学英语教学,更应该适时的进行改革,以适应时代发展的需要。因此,在建构主义理论指导下,建立网络环境下的新型大学英语教学模式,就是我们英语教育者的努力方向。 相似文献
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本文主要论述开发缝纫机智能化CAD系统的机构设计部分的基本思想和实现过程，并结合作者在浙江省制造业信息化工程重大科技攻关项目中的实际工作，利用分布式数据库Oracle和UG二次开发工具UG／OPENAPI，建立和开发了三维参数化缝纫机机构设计管理系统，实现了缝纫机四大机构的参数化设计分析以及相关计算和知识库管理，同时提供了特殊缝纫机新机构设计模块．文章最后以缝纫机四大机构中的送料机构为例，对该系统进行了例证． 相似文献
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中考是同学们在初中阶段最重要的一次考试．可是,每年都会有些平时学习成绩好的考生由于审题粗心,不仔细分析而导致失分,致使中考成绩不理想．下面我就结合2009年部分省、市中考试题跟同学们谈谈审题方法,以减少我们考试过程中出现的非知识性失误． 相似文献
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<正>随着地震勘探复杂程度的增大及勘探精度要求的提高,多次波衰减问题已成为地震勘探中最突出的问题之一,基于信号理论的多次波衰减方法已经无法满足地震勘探的要求,而基于波动理论的多次波衰减方法综合考虑了多次波传播的运动学及动力学特征,且几乎不需要任何先验信息就可以进行处理,不仅避免了基于信号域衰减方法的一些局限性,而且能够取得较好的衰减效果。本文主要对常用的几种波动理论衰减多次波方法和原理进行介绍,并对各方法适用情况进行分析。 相似文献
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金属活动性顺序是每年中考的重点和热点内容之一．下面将有关金属活动性顺序知识的中考题型总结如下：
一、判断型
例1 能用于证明锌、铜、银的活动性顺序的试剂组是（ ） 相似文献
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本文主要论述开发缝纫机智能化CAD系统的机构设计部分的基本思想和实现过程,并结合作者在浙江省制造业信息化工程重大科技攻关项目中的实际工作,利用分布式数据库Oracle和UG二次开发工具UG/OPENAPI,建立和开发了三维参数化缝纫机机构设计管理系统,实现了缝纫机四大机构的参数化设计分析以及相关计算和知识库管理,同时提供了特殊缝纫机新机构设计模块.文章最后以缝纫机四大机构中的送料机构为例,对该系统进行了例证. 相似文献
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Representations of contemporary rapid prototyping (RP) technologies may not be able to manage and share data processing information based on network. This paper presents a new approach, together with its technical implementation, to solve this problem, and discusses web-based study on RP data processing tecihniques. At present STL files produced by 3D modeling systems contain triangular facet representation of surfaces and have become standard data inputs of RP and manufacturing systems. The paper proposes algorithms for correcting common errors, and optimizes the algorithm of gaps or hole errors leading to open loops in the data structure based on analyses of the rules and errors in the STL file. In addition, effectiveness of the approach is demonstrated by a simple model view example of STL files based on Java 3D technology. 相似文献
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在核心素养背景下,通过历史学科能力表现指标体系对2023年四份高考卷对历史学科能力三个层级九个维度考查情况进行数据分析,得出在一级能力层级中都侧重实践应用能力考查,在二级能力层级中重视解释、概括和考证能力考查的结论,并据此提出在日常测评中应分层级递进式命题,注重考查学生面对新情境、新材料进行解释和评价的能力,同时通过增添层级化赋分题目,提升命题质量。 相似文献
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Product data management (PDM) is a unique technique that integrates and manages all applications, information and processes defining a product from design to manufacture, and to end-user support. However, exploration of valuable information and knowledge from the PDM system has become a key in improvement of efficiency and implementation of knowledge management in an enterprise. This paper introduces a data mining prototype system model based on PDM, and emphasizes some important techniques such as design of the prototype system framework, methods of data selection and integration of data mining prototype system and PDM. The model basically solves the problem of functional losses in mining and analyzing data in PDM. Application of data mining to PDM is meaningful to the ideas and techniques of PDM, and to the rapid development of data mining application itself. Also, it is useful in improving development and usage of enterprise databases. 相似文献
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Product data management (PDM) is a unique technique that integrates and manages all applications, information and processes defining a product from design to manufacture, and to end-user support. However, exploration of valuable information and knowledge from the PDM system has become a key in improvement of efficiency and implementation of knowledge management in an enterprise. This paper introduces a data mining prototype system model based on PDM, and emphasizes some important techniques such as design of the prototype system framework, methods of data selection and integration of data mining prototype system and PDM. The model basically solves the problem of functional losses in mining and analyzing data in PDM. Application of data mining to PDM is meaningful to the ideas and techniques of PDM, and to the rapid development of data mining application itself. Also, it is useful in improving development and usage of enterprise databases. 相似文献
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