深水平岩溶承压水上下组煤开采危险性评价     

马杰 《安阳工学院学报》2016,15(4):49-51

为评价芦岭矿Ⅱ1018工作面开采危险性,结合大量钻孔资料、抽水试验成果、底板隔水层裂隙统计和水源识别判别,分析了太灰中1灰~4灰薄层灰岩的赋存特征,评价了工作面底板隔水层阻水能力,识别了Ⅱ1018工作面上位工作面（Ⅱ1016）的出水水源。研究结果表明：1）经Fisher判别分析,Ⅱ1016工作面出水水源为灰岩水;2）1灰到4灰各单层灰岩逐渐增厚,富水性增加,但灰岩作为一整体含水层时,其富水性有随深度弱化趋势;3）10煤底到1灰隔水层厚度稳定,裂隙发育较弱,富水性差,具备有效隔水岩层的基本条件。  相似文献   

师范院校普通话水平测试暴露的问题及其对策     

郑燕萍 《莆田学院学报》2006,13(3):55-58

以师范院校的普通话水平测试为据,分析水平测试存在的种种问题,依此提出科学的训练模式和方法,以期达到提高普通话教学质量之目的。  相似文献   

中小学生家长期望水平的个体化指向   总被引：1，自引：0，他引：1  

宋保忠  蔡小明  杨珏玲  周方 《陕西教育学院学报》2007,23(4):1-3

家长期望理论研究,是当前心理学、教育学研究领域的新课题。调研发现中小学生家长对子女的学习、学历期望值偏高。家长期望水平个体化指向要合理定位:要以子女身心发展现有水平的个体特质为基准,与子女的自我价值发展趋向一致,以适度超过子女现有发展水平为目标,使家长期望水平与子女的学业成就动机都能向高一级的目标、方向跨越。  相似文献   

输电线路防雷评价模型及管理系统设计     

关宏 《福建工程学院学报》2007,5(6):600-604

通过相关影响线路耐雷水平各项因素分析,并借助计算机辅助设计管理系统,建立防雷评价模型,得到综合比较整体评价结果,同时以某一改造工程实例加以验证,从运行情况看,改造后的线路工程达到了预期目标,有效地减少了线路雷击.  相似文献   

高职院校生源状况分析   总被引：4，自引：0，他引：4  

强琛 《石家庄职业技术学院学报》2006,18(3):67-68

高职生源的文化基础水平和知识结构呈现多样性和一定的层次性,这促成了其学习需求和发展方向的多样化。我们应根据高职院校生源结构特点“因材施教”,充分发挥学生所长,促进学生个性良好发展。  相似文献   

Pricing policy and the college choice process     

Dr. Randall G. Chapman 《Research in higher education》1979,10(1):37-57

Following the presentation of a marketing management paradigm for higher educational institutions, this paper discuses some aspects of the pricing policy process in colleges and universities. A statistical model of the college choice process is developed, and some empirical results related to the effects of price, among other factors, on the collegechoice decision-making behavior process of high school seniors are presented and interpreted. The two most important factors affecting the college choice process are seen to be college quality and price-related considerations. Marketing implications of these results are discussed.Presented at the Annual Forum of the Association For Institutional Research, Houston, Texas, May 1978.  相似文献   

Noise Levels in Hong Kong Primary Schools: Implications for classroom listening     

Ching Yee Choi 《International Journal of Disability, Development & Education》2005,52(4):345-360

Many researchers have stressed that the acoustic environment is crucial to the speech perception, academic performance, attention, and participation of students in classrooms. Classrooms in highly urbanised locations are especially vulnerable to noise, a major influence on the acoustic environment. The purpose of this investigation was to determine noise levels in one such urban environment, Hong Kong. The ambient noise level, and its relationship to the speech intensity levels of both teachers and students was surveyed in 47 primary school classrooms. Moreover, the presence of acoustical treatments for noise reduction and the use of classroom amplification systems were documented for each classroom. The survey found that the mean occupied noise level was 60.74 dB (A); the mean unamplified and amplified speech‐to‐noise ratios of teachers were 13.53 dB and 18.45 dB, respectively; while the mean unamplified speech‐to‐noise ratio for students was 4.13 dB. Most of the classrooms exhibited insufficient acoustical treatments to provide significant noise reduction. The listening environment in many Hong Kong primary schools was not favourable for optimal classroom learning. Recommendations for improving the acoustical environment in classrooms in highly urbanised locations such as Hong Kong are discussed.  相似文献   

制度分析的层次问题与国际制度研究     

田野 《教学与研究》2007,42(5):82-87

经济学和政治学中的新制度主义理论大都将某一层次的制度作为自己的分析对象,而把更高层次的制度作为给定的外生变量.从关于国际制度层次划分的代表性观点来看,构成性制度相对于限制性制度而言是更高层次的制度,普遍性制度相对于特殊性制度而言是更高层次的制度.这种将国际制度区分为不同层次的视角,有助于我们认识国际制度研究中新自由制度主义与建构主义之间的理论争鸣.  相似文献   

影响高中生物教师教学水平的几个主要因素     

饶有生  宋显群 《江西教育学院学报》2004,25(3):96-98

影响高中生物教师教学水平的因素有很多,但就我省高中生物教学的实际情况而言,主要是教师的教学观念、教师的专业知识水平、教师的科学研究能力三个方面。如何在这三个方面不断丰富和完善自我的问题应该成为广大高中生物教师共同关注的课题。  相似文献   

金属中自由电子气能量的研究     

杨晓翠  李伟 《通化师范学院学报》2001,22(5):43-45

本文根据费米气体模型理论,研究金属中自由电子气的能量,讨论电子的最高能量、平均能量和电子气的能级密度.  相似文献