提高“自感现象”演示成功率的方法

本文根据实验结果。介绍了提高“自感现象”演示成功率的方法,并从理论上作了分析讨论。     

以优化环境推进数字经济的健康快速发展

当前我国数字经济的增长势头强劲,在国民经济中的地位显著提升。数字经济的发展依赖于良好的政务环境、营商环境、科创环境,因此地方政府要从软环境和硬环境两个方面优化数字经济发展环境,促进数字经济健康快速发展。     

基于BIM的结构钢筋与机电系统翻模研究——以福州市规划院产业楼为例

基于建筑信息模型（Building Information Modeling, BIM)）概念,以福州市规划设计研究院新建大楼为实际案例,应用Autodesk Revit软件将原有CAD图纸进行BIM结构钢筋和机电模型建置,并提出BIM技术虚拟仿真过程中发现的问题。研究结果表明:（１）BIM技术可实际解决工程常常出现钢筋复杂节点、机电管道碰撞的问题;（２）机电系统进行Revit翻模时,不能按原CAD路径绘制,族库不全需建族完善。该研究成果可为后期施工决策提供技术支持,并有助于相关行业人士学习与借鉴。     

逻辑抽象思维与创造性思维--兼谈逻辑抽象思维能力的培养

人类思维的发展历程说明,有创造的出现就有逻辑抽象的出现.而真正的逻辑抽象思维是以概念思维为标志的.创造性想象是概念的联想和思维模式的转换;创造性直觉是逻辑抽象思维基础上的一种思维跳跃.创造性思维中的逻辑抽象表现为一种目的性、收敛性和程序性.培养逻辑抽象思维和提高创造能力要注意将逻辑抽象由经验型向理性型发展,自发型向自控型发展,简单型向辩证型发展.     

做好高职院校新生入馆教育的思考

针对高职院校图书馆存在的对入馆教育不够重视、入馆教育内容太理论化、参观图书馆走过场、读者手册内容简单等问题,阐述开展新生入馆教育的有效途径:重视入馆教育,寻求读者自觉利用图书馆的激情,编发《图书馆使用手册》,以电化教学激发新生兴趣,开设文献检索必修课等。     

Relationship between hyperuricemia and metabolic syndrome

Objective: To investigate the relationship between metabolic syndrome and hyperuricemia. Methods: A total of 2 374 subjects who received health examination in our hospital from Jan. 2004 to Dec. 2006 were enrolled in our study. Hyperuricemia is defined as ≥7 mg/dl (in men) or ≥6.0 mg/dl (in women). Metabolic syndrome was defined using AHA/NHLBI (American Heart Association/National Heart, Lung, and Blood Institute) criteria. Results: (1) The overall prevalence of hyperuricemia was 13.10%. The condition was more common in men than in women (19.07% vs 3.42%). (2) Among men, uric acid concentration is statistically significantly positively correlated with waist circumference, blood pressure, and triglyceride. Uric acid is negatively correlated with serum high-density lipoprotein-cholesterol (HDL-C). Uric acid concentration is most strongly correlated with serum triglyceride (r=0.379) and waist circumference (r=0.297). Among women, statistically significant positive correlations were noted for the serum uric acid concentrations with waist circumference, triglyceride and fasting plasma glucose. Serum triglyceride (r=0.329) and waist circumference (r=0.234) are most strongly correlated with uric acid concentrations. (3) Men with hyperuricemia had a 1.634-fold increased risk of metabolic syndrome as compared with those without hyperuricemia odds ratio (OR)=1.634, P=0.000. Women with hyperuricemia had a 1.626-fold increased risk of metabolic syndrome (OR=1.626, P=0.000) as compared with those without hyperuricemia. Conclusion: Hyperuricemia is prevalent among Chinese population. Additionally, serum uric acid is positively associated with metabolic syndrome.     

基于高职“324”实训基地运行模式的研究——以扬州工业职业技术学院钻井技术专业为例

实训基地是为学生提供岗位技能训练,保证学生掌握一定职业技能的场所,是高职教育的基本硬件,其建设水平的高低直接影响着高职院校的教学质量与水平。结合我院中央财政重点支持建设专业钻井技术,对实训基地的运行模式进行创新实践。     

Moodle教学环境下成人契约学习实证分析

Moodle教学环境下师生签订学习契约以实现学习成果。契约学习的主要环节有师生共同诊断学习需求、签订契约、履行契约、对学习结果进行契约评价。以Moodle教学环境下的课程为试点,进行契约学习实践探索。采用调查和访谈方法,对数据与信息进行统计与分析。结果发现,使用学习契约,增强了学习者的学习动力;提高了学习者的学习自主能力。有助于学习者履行学习责任,有利于增强师生之间的关系。基于这些发现,文章尝试进行了讨论、分析并提出建议。     

Scheduling algorithm for multimedia services in IEEE 802.16e OFDM system

Based on five scheduling types and their QoS requirements defined in IEEE 802.16e specification, this paper proposes a new scheduring algorithm for non-real-time or real-time multimedia services. Taking the performances of efficiency, fairness and complexity into consideration, the proposed algorithm enhances the efficiency of air interface resource at the expense of the short-time unfairness, but ensures the long-time fairness. Moreover, the proposed algorithm introduces an efficient QoS assurance mechanism, which implements the functions of congestion control, queuing management and traffic management. The simulation results based on a simplified traffic model show that the proposed algorithm guarantees better performances of efficiency and fairness than conventional algorithms, without increasing the algorithm complexity. Especially on the occasion of heavy-traffic requirement, the performance of efficiency and fairness can be improved by 50% at most.     

基于二维零件数控加工图形编程系统研究

随着自动编程技术的迅速发展,各种新型数控编程系统不断出现.利用图形编程理论,针对数控线切割机床的加工特点,开发了一种基于二维零件数控加工的TXBCH图形编程系统,重点研究了系统中图素的概念、图素的定义方式和算法,并在此基础上开发出了相应的软件.通过三十多个不同类型零件的图形输入,验证了本文所开发的TXBCH图形编程系统的正确性.解决了中小企业由于费用问题不能购买大型数控编程系统的难题,加快了中小企业的自动化进程.