实践与经验的关系辨析

实践与经验的关系问题是认识论中的重要问题.二者既有联系又有区别.本文试从实践与经验的含义入手,逐渐深入地分析实践与经验的先后产生问题和两者的区别.     

教学叙事:穿越经验的反思

陈建华教授在<教师要超越经验层面上的教育常识>一文中说:教师对教育活动中各种问题的处理往往依据自己对教育的理解或者自己的教育观念.而这些理解或观念有些是合理得当的,有些属于经验层面的,可能存在问题.因此,教师要对教育经验进行反思.     

住宅室内外给排水设计的几点经验

住宅给排水设计中的节水节能问题不容忽视。针对目前住宅室内外给排水设计中存在的问题,分析了设计中需注意的细节。根据多年的工程设计和现场维修经验,谈谈住宅室内外给排水设计中的一些经验与做法,以便将工程设计做得更加完善。     

数学解决问题的基本方法——化归

回顾我们处理数学问题的过程和经验会发现,我们常常是将待解决的陌生问题通过转化,归结为一个比较熟悉的问题来解决,因为这样就可以充分调动和运用我们已有的知识、经验和方法.也常将一个复杂的问题转化归结为一个或几个简单的问题来解决等等.这些方法的科学概括就是数学上解决问题的基本思想方法一一化归.     

初中数学教学规律探索

文章针对当前我国初中数学教学中存在的问题,提出数学教学应加强学生对数学问题敏感性及数学问题探究能力的培养,通过对我国数学教学改革趋势与经验的分析,在相关教学理论的启发下,结合自身多年来的中学数学实践探索经验,吸收并整合情境教学与问题教学等国内同行的研究成果,提出了初中数"情境-问题-讨论-反思"教学模式.     

教师要超越经验层面上的教育常识

一、教师不能迷信教育经验 教师往往依据自己对教育的理解或者自己的教育观念来处理教育活动中的各种问题.教师的理解或观念有些有理论支持,可能是合理和得当的,但是有些可能属于教师经验层面上的教育常识,可能存在问题.     

唐山钢厂推行小型轧钢自动化后怎样提高元钢质量的

唐山钢厂轧钢车间为了提高元钢的质量,在改进孔型设计工作中摸索到一些经验。我们认为这些经验还不够成熟,现刊出供有关部门研究并注意此一问题。     

拉罗克斯压滤机存在的问题及改进

阐述拉罗克斯压滤机在使用过程中暴露出的一系列问题,围绕这些问题提出改进办法,为完善该机提供一些经验和看法。     

对搞好钢铁企业系统节能工作的几点看法

辽宁省的钢铁企业在开展系统节能方面做了很多工作,积累了丰富的经验。本文根据全省开展系统节能的经验,从行业管理的角度,探讨了如何搞好钢铁企业系统节能工作的有关问题。     

含水构造的巷道通过方法探讨

文中根据通过较大含水构造恭道的施工实例,分析了通过含水的方法,提出了解决该类问题的途径和需注意的问题,为解决类似问题提供了借鉴经验。     

熔炼次数对M17返回料合金成分、组织和性能的影响

实验结果表明,M17铸造高温合金(%:0.16C、8.79Cr、5.79A1、4.93Ti、3.29Mo、15.20Co、0.78V、0.015B、0.073Zr、0.002S、0.001P、0.001 1O、0.001 0N)经25 kg真空感应炉返回重熔后,Si含量随重熔次数的增加而略有增加,合金中主要元素和其它杂质元素S、P、H的含量变化不大,而氧、氮略有增加;合金中初生碳化物由新合金中的草书体逐渐向返回合金块状转变,初生碳化物的遗传性堵塞合金凝固时的补缩通道,使返回料合金的疏松倾向增大,高温塑性下降较大。     

Shijiazhuang will Build the World's Biggest Replacingcopper-with-aluminum Cable Production Base

正Shijiazhuang City will build the world’s biggest replacing-copper-with-aluminum cable production base,the annual output value can reach 100 billion yuan,in the future it will develop replacing-copper-with-aluminum highend industry cluster.This piece of news was learned by the reporter at the Rare Earth highiron Aluminum Alloy[Nonferrous Business Opportunity:Aluminum alloy door]Cable Conductor New Technology Application Seminar held at the provincial capital.     

Chongqing is Preparing to Set Up Nonferrous Metal Exchange,in a Bid to Become the Transit Place of Kazakhstan Copper

正Since the beginning of Chongqing’s upgrading to a municipality directly under the Central Government,Chongqing City has established direct friendly relationship with Almaty,Kazakhstan,and carried out a series of cooperation in commerce and trade,and culture     

Guangxi Baise Extends Industrial Chain to Combat Loss in Aluminum Business

正"For each tonne of aluminum being produced,the upstream enterprise on the aluminum industrial chain will suffer loss about 2000yuan."Said Liang Xiao,Deputy Director of Pingguo Industrial Park Management Committee under the Guangxi Baise City,one of the four major aluminum industry bases in China,on August 11.Extending aluminum     

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL ANNUAL CONTENTS Volume 21(2014)

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Chinalco Straightened Out Copper Assets,and Delegated Stock Equity of Yunnan Copper

正Immediately after the news that Chinalco transferred 58%stock equity of Yunnan Copper Group to its wholly-owned subsidiary China Copper Corporation Limited free of charge was disclosed on July 9,many individual investors couldn’t help but to think:Does it mean China Copper Corporation Limited will assemble assets for overall listing?At present,among main copper business companies under China Copper Corporation     

The Development and Reform Commission Encourages Private Capital to Enter Geological Prospecting Field

正At the press conference recently held by the National Development and Reform Commission under the theme"Deepen Reform in Investment AuditApproval System",when answering questions from reporters,Huang Min,Director of the Department of Fixed Assets Investment of the National Development and Reform Commission,said that in the future it would continue to intensify efforts in geological prospecting,and actively guide social capital to enter this field.     

Guangxi's first Nickel Industry Development Research Report Was Released

正Recently,Guangxi Metallurgical Research Institute,a subsidiary of Guangxi Nonferrous Metals Group,completed survey on laterite and related manufacturers in the region,by combining the current development status of laterite both at home and abroad,it compiled Guangxi’s first"Research Report on the Development of Guangxi Nickel Industrial Chain"which adopted laterite as the study subject.This report expounded on the current     

China’s Major Non-ferrous Metals Imports & Exports(End of September. 2014)

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China's Major Non-ferrous Metals Imports & Exports

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