Visual FoxPro中常见错误及其处理方法

在应用程序设计中 ,程序的调试是程序设计的重要一环 .重点介绍Visualfoxpro中常见错误及其错误的处理方法 ,以便提高应用程序的质量和效果     

全国大学生网球丙、丁组男双技战术运用特征及发展对策研究

采用文献资料、数据统计、临场观察等方法对全国大学生网球丙组、丁组男双运动员技战术运用特征进行了研究,认为丙、丁组男双运动员在比赛中发球局战术多以压制对方反手、寻求稳定为主,接发球战术具有明显的单打接发球战术特点,临场阵型选择多以"一网一底"为主.在发球质量、接二发战术运用能力、网前抢网及中场对抗能力、破网能力、抓关键分能力等方面存在较大的欠缺. 建议在训练及比赛中注重提高发球和接发球质量,强化"主动拦击,积极抢网",加大中场和近网拦截训练,提前攻守转换时间,并在加强沟通与信任的基础上,制定发球局与接发球局策略以形成不同的战术套路,从而逐步提高技战术运用水平.     

浅议我国高职院校教学研究工作

加强教学研究工作,不仅是高职院校教学改革和提高自身地位的要求,而且是提高高职教师教学水平和综合素质的需要,因此,高职院校应积极采取措施,加强教学研究工作。     

提高国民生活质量和国家竞争力——韩国新世纪的人力资源开发战略简析

韩国政府为了实现在21世纪成为“世界超一流国家”的宏伟目标，在对现存教育与人力资源开发体制进行反省的基础上，决定把强化人力资源开发作为国家发展的核心战略。2001年12月制定出台了《人、知识、跨越：国家人力资源开发基本计划》，确立了“提高国民生活质量和国家竞争力”的人力资源开发目标和一系列政策保障措施。     

XMage: An image retrieval method based on partial similarity

XMage is introduced in this paper as a method for partial similarity searching in image databases. Region-based image retrieval is a method of retrieving partially similar images. It has been proposed as a way to accurately process queries in an image database. In region-based image retrieval, region matching is indispensable for computing the partial similarity between two images because the query processing is based upon regions instead of the entire image. A naive method of region matching is a sequential comparison between regions, which causes severe overhead and deteriorates the performance of query processing. In this paper, a new image contents representation, called Condensed eXtended Histogram (CXHistogram), is presented in conjunction with a well-defined distance function CXSim() on the CX-Histogram. The CXSim() is a new image-to-image similarity measure to compute the partial similarity between two images. It achieves the effect of comparing regions of two images by simply comparing the two images. The CXSim() reduces query space by pruning irrelevant images, and it is used as a filtering function before sequential scanning. Extensive experiments were performed on real image data to evaluate XMage. It provides a significant pruning of irrelevant images with no false dismissals. As a consequence, it achieves up to 5.9-fold speed-up in search over the R*-tree search followed by sequential scanning.     

空调系统生物污染问题探讨

主要探讨空调系统防治生物污染的措施，认为集中式空调可充分利用原有的设备容量．改变送风参数，增加新风量，减少回风；风机盘管系统则应采取有效措施减少冷凝水产生，同时要经常清洗过滤器。     

松嫩平原盐碱性湿地渔业开发途径

松嫩平原是我国重要的农业生产基地,盐碱性湿地分布广,面积大,是该区农业发展的主要限制因素之一。结合近年来吉林省农业综合开发项目和“八五”国家攻关项目的实施,本文从渔业利用方面,初步总结了吉林省白城地区及松原地区盐碱性湿地开发的实践经验,报道9种开发利用途径及其主要技术。     

Touch your toes! Developing a direct measure of behavioral regulation in early childhood

Behavioral aspects of self-regulation, including controlling and directing actions, paying attention, and remembering instructions, are critical for successful functioning in preschool and elementary school. In recent years, several direct assessments of these skills have appeared, but few studies provide complete psychometric data and many are not easy to administer. We developed a direct measure of children's behavioral regulation, the Head-to-Toes Task, and report performance of participants aged 36–78 months, including a group of Spanish-speaking children, from two different sites (N = 353; N = 92). We examined construct validity, examiner reliability, sources of variation, and associations between task scores and background characteristics. Results showed that the task was valid, reliable, and demonstrated variability in children's scores. A cross-classified hierarchical growth curve analysis indicated that girls, participants assessed in English, and higher-socioeconomic status (SES) children achieved slightly higher average scores than did boys, Spanish-speaking and lower-SES children, but effect sizes were small. Older participants achieved higher scores than did younger children, and there were no effects for site. Results suggest that the Head-to-Toes Task is an informative and easy-to-administer direct assessment of children's behavioral regulation. We discuss implications for its use in early childhood settings.     

Library Technical Services Face New Changes of Technology: A Student Survey of Electronic Course Reserve

ABSTRACT

The digitization of library materials has had a tremendous impact on libraries. By using the Internet, readers can access digital library materials from any place in the world. The BMCC Library started several programs to provide more digital materials to its patrons in the forms of electronic books, periodicals, full-text materials, and webpage links to other databases. A test program began in spring 2002 for course reserves, and electronic archiving was about to start in fall 2001. This paper describes a survey conducted to measure the response to the implementation of ERes for digitizing course reserves.     

南阳地区农村土地资源开发利用研究

本文对南阳地区农村土地资源利用现状进行分析,指出存在问题,提出持续利用对策。