职业教育——哲学和理论的阐述     

M.H.弗朗斯  张伟远 《教育与职业》1986,(5)

引言 职业教育理论只是最近才发展为一门学科,它正如人们所称的处于类似青春期的阶段(Crites,1981)。然而,最近几年已经有了不少进展。如果我们要在学校中推行一种有效的职业教育计划,就必须对职业教育理论有所了解。 在考察职业教育理论中,我们必须考虑到某些限制因素。首先,不同理论的许多假设是试验性的;第二,现存的研究中许多是依据对中层男性白人的研究资料(Herr,1970);第三,职业发展理论不能作为所有职业教育和咨询计划的一般发展理论之基础(Tolbert,1980)。  相似文献   

Hybrid heuristic and mathematical programming in oil pipelines networks： Use of immigrants     

DELACRUZJ.M. HERRAN-GONZALEZA. RISCO-MARTINJ.L. ANDRES-TOROB. 《浙江大学学报(A卷英文版)》2005,6(1):9-19

We solve the problem of petroleum products distribution through oil pipelines networks. This problem is modelled and solved using two techniques: A heuristic method like a multiobjective evolutionary algorithm and Mathematical Programming. In the multiobjective evolutionary algorithm, several objective functions are defined to express the goals of the solutions as well as the preferences among them. Some constraints are included as hard objective functions and some are evaluated through a …  相似文献   

讨论主题5：评课的基本原则是什么     

高建中马九克  任其斌胡佳 《现代教学》2007,(1):27-29

●评课应以“以学生的发展为本”为首要原则 高建中：要确定评课的原则，那就要对一堂课的本质进行理解。为此，我先谈谈对课堂教学的一些认识：  相似文献   

基于红外图像的绝缘子高温区域特征研究     

宫政  西日艾力.吾斯曼  罗俊  尹迪晖  闫书佳 《教育教学论坛》2019,(1):104-105

绝缘子故障会引起表面温度的上升,造成局部区域高温。因此,准确识别绝缘子的高温区域是故障检测的有效途径。本文提出了基于灰度共生矩阵的绝缘子高温特征提取方法。红外图像经过图像分割后,提取纹理特征,选取能量、熵、惯性矩和相关性作为特征值。试验结果验证该方法准确性高,可为绝缘子高温区域的识别提供参考。  相似文献   

Broken Promises     

Lorraine M.Gregoire  晓雾 《英语自学》2001,(3)

“Sheesh!Give me a few points for self control!”Isnapped at my cranky husband.I wanted to stop at a sport-ing goods store“Going Out of Business”sale we passed inthe mall.“There's nothing we need”,his usual grumpymale comment.“It's all overpriced junk.If they had anythinggood they wouldn't be going out of business.”  相似文献   

开罗夜未眠     

G.WILLOW WILSON 《海外英语》2007,(11):24-25

During the last few years, my neighborhood in Cairo has experienced such an influxof refugees from the Iraq war that longtime residents have begun, with a mixture of  相似文献   

俄罗斯中等职业教育改革     

A.M诺维科夫  师程梅 《世界职业技术教育》2001,(3):12-13

  相似文献   

妈妈唱过的歌     

李智明  雨霖  克忠 《音乐世界》1992,(4)

(二朴。-Z一一一.、 人甲2 0 8 2 76-已侣==于气=。缨!式一!:)。;下 3 O一{迹二!气·}丛{讲讲曾曾爸爸爸爸厂~~-~-一一、/一一.一一-一一一、熏衬}遍昼 九叼3 5 32过,过,说唱曾曾妈妈妈妈/-一一.一、垫1里3。5 e 1 48像执断了诬。} 沪沪一‘一~响、8。5 2 3 16-一~,二留‘=二二二二二二二二二那是一个那是一首刀斧着追事帜/内01︸!一n︸l一、六O芍厂;.︸.,‘荤︸2一︸\O‘l场︸幽拱一‘-︼一 4。\几O一. V火炬点然的鲜血染红的个面一一是是那那1说歌.,;1。旦其箕卜一1(亘纠典二} 6劲t多少次为多少次在续早、1夔5.。传颂说歌压。{二二}赴…  相似文献   

Effect of boundary conditions and convection on thermally induced motion of beams subjected to internal heating     

MALIK Pravin KADOLI Ravikiran GANESAN N. 《浙江大学学报(A卷英文版)》2007,8(7):1044-1052

Numerical exercises are presented on the thermally induced motion of internally heated beams under various heat transfer and structural boundary conditions. The dynamic displacement and dynamic thermal moment of the beam are analyzed taking into consideration that the temperature gradient is independent as well as dependent on the beam displacement. The effect of length to thickness ratio of the beam on the thermally induced vibration is also investigated. The type of boundary conditions has its influence on the magnitude of dynamic displacement and dynamic thermal moment. A sustained thermally induced motion is observed with progress of time when the temperature gradient being evaluated is dependent on the forced convection generated due to beam motion. A finite element method (FEM) is used to solve the structural equation of motion as well as the heat transfer equation.  相似文献   

硬件接口实验仿真系统的设计与实现     

薛纪文  加云刚  吴涛 《实验室研究与探索》2005,24(4):45-47

文章分析了硬件接口实验环节的特点,介绍了采用软件方式进行硬件接口实验仿真的现实意义,并给出仿真软件设计的数据结构及算法实现。  相似文献