共查询到20条相似文献，搜索用时 62 毫秒
1.
煤层气作为新兴的能源矿种,具有巨大的资源潜力,有着极大的经济价值、社会效益和环境效应。近年来,我国陆续发现了许多大气田,这些气田均为煤成气田。四川盆地是中国陆上最重要的天然气产区之一,勘探证实,须家河组天然气主要源于自身煤系地层。文章通过分析不同构造区域沉积相带的变化和有机质富集的关系,结合四川盆地须家河组煤系烃源岩分布和发育特点,总结了四川盆地须家河组煤系烃源岩沉积发育模式,对探索前陆盆地煤成气（烃）地质条件及油气分布规律,具有重要的理论意义和实际意义。 相似文献
2.
The Family Day Care Rating Scale (FDCRS; Harms & Clifford, 1989) was developed in the USA. The scale attempts to define quality in family day care for pre‐schoolers and to provide a standardised way of assessing it. The FDCRS has been shown to have good reliability and validity in the USA and Canada. However, the rating scale has never been used to assess quality of family day care in the UK. This paper describes data collected from 104 family day care providers (childminders) in England using the FDCRS. It reports on the internal consistency of the FDCRS subscales and the validity of aggregating the subscales to derive one single measure of quality. Analyses suggest that the scale may provide a useful global measure of quality. However, not all subscales yielded good internal consistency. Recommendations are made as to how the FDCRS could be modified for effective use as a research tool in England. 相似文献
3.
The effects of cognitive thinking styles, trust, conflict management on online students' learning and virtual team performance 总被引：1，自引：0，他引：1
Xiaojing Liu Richard J. Magjuka Seung-hee Lee 《British journal of educational technology : journal of the Council for Educational Technology》2008,39(5):829-846
4.
王玉东 《河北能源职业技术学院学报》2004,4(2):47-49
简要介绍弯管流量计的工作原理及特点，分析了弯管流量计在现场应用中易出现的问题。使用户对弯管流量计的选型、安装和使用方面更加方便。有利于推动弯管流量计在工业流量计量的应用。 相似文献
5.
高校学生素质拓展与素质教育思考 总被引：3，自引：0，他引：3
王娟 《宁波职业技术学院学报》2005,9(6):51-53
“大学生素质拓展计划”是新时期高校素质教育的一项重要措施，也是推进素质教育的一项系统工程。通过社会实践、校园文化建设等有效活动途径，为大学生素质教育增添新的内容和活力。实施素质拓展计划和全面开展素质教育，使广大青年学生成长为社会有用人才。 相似文献
6.
The Formulating-Hypotheses (F-H) item presents a situation and asks examinees to generate as many explanations for it as possible. This study examined the generalizability, validity, and examinee perceptions of a computer-delivered version of the task. Eight F-H questions were administered to 192 graduate students. Half of the items restricted examinees to 7 words per explanation, and half allowed up to 15 words. Generalizability results showed high interrater agreement, with tests of between 2 and 4 items scored by one judge achieving coefficients in the .80s. Construct validity analyses found that F-H was only marginally related to the GRE General Test, and more strongly related than the General Test to a measure of ideational fluency. Different response limits tapped somewhat different abilities, with the 15-word constraint appearing more useful for graduate assessment. These items added significantly to conventional measures in explaining school performance and creative expression. 相似文献
7.
浅析高校干部经济责任审计的难点及对策 总被引：5，自引：0，他引：5
干部经济责任审计是党和国家加强干部队伍建设，开展反腐倡廉活动的重要举措，是对领导干部进行经济监督管理的重要形式之一。干部经济责任审计在高校刚刚起步，在具体实施过程中存在着审计主体定位难、审计切入难和审计实施方法难等问题。结合工作实际采用审计委托书和组建审计联合主体等方法，可以有效解决上述问题，使干部经济责任审计工作顺利开展。 相似文献
8.
The demographic and job satisfaction characteristics of Florida community college faculty were studied in Florida's 28 community colleges. A total of 1,116 faculty responded in the fall of 1977 to an instrument developed to measure faculty characteristics and attitudes. The results showed that the Florida faculty is a satisfied faculty with over 95% reporting that they were satisfied with community college work as a career and with 72% stating that they plan to stay in the community college field until they retire. Second, it was found that faculty participation in in‐service training programs had increased significantly since 1968. In 1977‐1978, 69% of the faculty reported participation in one or more in‐service programs while the 1968 percentage was 37%. It is concluded that periodic surveys in other community colleges and states similar to this one should provide useful information for the further development and improvement of community colleges. 相似文献
9.
10.
This study aimed to verify the factorial structure, internal validity, reliability, and criterion validity of The Sentiments, Attitudes and Concerns about Inclusive Education Revised Scale (SACIE-R) in an Italian sample. The SACIE-R is a useful tool to measure three aspects of teachers’ perceptions about inclusion, which are Sentiments, Attitudes and Concerns, providing valuable information to address the needs of teachers working with special students. A measure of this construct is currently not available in Italian, and a validation process is required. In order to provide an initial psychometric evaluation of the Italian adaptation, the SACIE-R was translated for use in Italian-speaking populations. Four hundred Italian teachers enrolled in educational teaching courses completed the SACIE-R. Confirmatory factor analyses demonstrated a good fit to the hypothesised 3-factor model, and adequate internal consistency for the scale was evidenced. A confirmatory factor analysis showed the same factor structural validity as the original instrument (although some items in the original version were deleted). Furthermore, taken together, the results showed a good level of reliability, and convergent and discriminant validity. Finally, the Italian version of the SACIE-R has good psychometric characteristics that can make it a useful measure of teacher attitude toward inclusion in the Italian educational context. 相似文献
11.
标定倾斜岩巷中腰线,是比较重要的矿山测量工作之一。目前,在倾斜岩巷掘进中普遍使用的装岩机的规格一般为10.0米×1.7米×2.2米(这占去了有限巷道空间的一大部分),另外,由于巷道迎头矸石不清等原因造成仪器不易对中,这些情况一直造成传统做法下的巷道中腰线标定工作具有耗费时长、不易完工等局限。因此,研究更加合理的延线方法具有很重要的实际意义。 相似文献
12.
13.
Norms, reliabilities, and validities for the five scales of an instrument designed to measure Bruner’s model are presented. In testing the instrument on a random sample of men and women, it was found that persons of both sexes emphasized knowledge of society, human condition, natural world, past, and artistic heritage in that order. It is suggested that the Educational Values Inventory may be able to provide useful information to educational planners when developing institutional goals. 相似文献
14.
Joseph Polubinski Lawrence E. Melamed O. Veronika Prinzo 《Psychology in the schools》1986,23(4):337-341
Beery's Developmental Test of Visual-Motor Integration was individually administered to 193 school-age children. Test protocols were factor analyzed by a principal component solution. Four factors were obtained, indicating that the test does not measure a unitary dimension of perceptual-motor development, but rather four distinct levels or stages for the age range of children investigated. The structural features of the designs that make up the test were used to define the factors. It is argued that a more useful interpretation of performance on this test would be one that designates visualmotor processing in terms of levels, not age equivalents. 相似文献
15.
测量公法线长度是齿轮精度检验常用的方法之一,在齿轮设计、齿轮精度检验及齿轮测绘中应用广泛.测量公法线长度的工具简单,测量技术易掌握且能保证测量精度,基本可以满足普通齿轮的精度测量与测绘计算. 相似文献
16.
倪小妹 《淮南职业技术学院学报》2008,8(3):87-89
2006年2月财政部正式颁布了《企业会计准则第8号——资产减值》,这是为规范会计核算、提高会计信息质量而采取的又一项重要措施,使得我国会计准则进一步趋向标准化,逐渐向国际化靠拢;探讨资产减值准备的意义,分析新准则所做改进及存在的不足,进而提出完善新准则的建议,希望有利于准则的理解和完善。 相似文献
17.
给出了一种基于Ferguson曲线计算断面面积的算法。通过与现有算法的对比分析，说明该算法的计算精度较其它算法更高，而且计算量小，在实际工程中具有较高的应用价值。 相似文献
18.
新时期高校学生社会实践活动实效性探析 总被引：2，自引：0，他引：2
社会实践活动是高校思想政治教育的重要渠道,是推进大学生素质教育的重要措施和人才培养的重要环节,是实现人才全面提升的最基本、最重要的途径。然而,高校学生社会实践尚存在着诸多的问题亟待解决。本文就高校学生社会实践中存在的问题及如何更深入、更有效地开展好社会实践活动,在理论环节上做了进一步探索和思考,在实践环节上提出了一些有益的建议。 相似文献
19.
胡晓梅 《黄冈师范学院学报》2010,30(6):40-42
将三分Cantor集构造的一个性质推广到2n＋1（n∈N）分Cantor集,并用它简便计算出2n＋1分Cantor集的Hausdorff测度,给出了此类广义Cantor集Hausdorff测度计算的一种新方法.该方法比其它方法更为初等而易于计算,为计算其它分形集的Hausdorff测度提供了一种思路. 相似文献