在线考试系统防作弊策略研究

分析了利用在线考试系统实施考试的过程中可能的作弊方式及其特点,针对各种作弊方式,提出了两种防作弊策略：①自动组卷策略;②将自主开发的具有防作弊功能的ActiveX控件嵌入在线考试系统。两种策略的提出,一方面可减少考生作弊的可能性,另一方面可增强在线考试系统的公平性。     

基于JavaEE的高校财务预算开支系统设计与实现

研究了高校财务管理模式,分析了高校财务管理系统的功能模块,设计了基于JavaEE平台的财务预算开支系统体系架构,并介绍了如何利用JavaEE、Ajax、JQuery、Qrcode等技术实现系统的主要模块。     

基于TDM/TDMA应急救灾卫星通信系统的设计

卫星通信是应急救灾通信的主要手段,是我国应急通信体系的重要组成部分。文章针对省市政府部门的应急救灾通信需求,论述了基于前向链路TDM、反向链路TDMA技术的卫星通信系统的设计方案,详细介绍了系统的设备组成和功能。     

杨陵区空气质量的变化趋势与对策分析

利用杨陵区环境空气质量监测点的数据,研究杨凌最近5年在平稳快速建设与发展的环境下城市空气污染的特征。结果表明：空气环境中PM10经常为杨陵区首要污染物,5年中有2年均值高于国家二级标准,呈不稳定态势;SO2浓度年均值远低于国家二级标准,呈平稳上升态势;NO2浓度年均值为国家一级标准,呈稳中有降态势。污染主要源于气象条件不利、燃煤增加、机动车增加等因素。并针对杨陵区空气污染的特征提出了防治建议与对策。     

我国竞技体育“举国体制”存在的合理性分析

举国体制,从某种意义上说,就是集中力量办大事的体制.科学认识我国竞技体育“举国体制”问题,决不是简单的对社会制度问题的评析,旨在对我国竞技体育“举国体制”存在的合理性从四个方面进行科学的剖析,以期为我国竞技体育发展的理论问题提供科学的参考之宜.     

《国史大纲》考辨三则

钱穆先生的《国史大纲》以纲目为体,行文精练.就其中所涉及的三个问题进行发散思维与考辨,对“伯禽”之名的形成与其封国之关系、“海鸥鸟”之称是指石虎还是佛图澄以及单襄公“所言之旨”做进一步的探究.     

乘积FC-度量空间中的极大元定理及其对广义拟变分包含问题组的应用

利用FC-度量空间中的极大元定理,建立了乘积FC-度量空间中的极大元定理,作为应用,获得了FC-度量空间中广义拟变分包含问题组的解的新的存在定理.这些结果统一、改进和推广了近期文献的已知结果.     

Skeleton Changes Induced by Horse Riding on Medieval Skeletal Remains from Croatia

Skeletal remains of 35 individuals from the Croatian excavation site Kamen Most – Kaldrma from the fourteenth to fifteenth centuries were analyzed anthropologically. Due to specific skeletal characteristics, eight of them were analyzed in great detail in this study. The results of additional analysis indicated that all bone elements, except pelves, of all eight persons belonged to males. All pelvic girdle have characteristics of female sex and pronounced muscle attachments that are both indicative of horse riding. All eight persons had at least two of six changes on femora indicative of horse riding. Vertebrae of seven persons (one person did not have preserved vertebrae) have Schmorl's nodes. Signs of advanced osteoarthritis were found on all joints in all eight persons. All of them also have visible signs of periostitis especially on lower extremities. Pathological signs of trauma were found in five persons. Two of them had skull fractures and the rest had fractures of extremities which are also characteristic for horse riders. The average age of all eight persons was above 45 years at death. DNA analysis confirmed male sex for seven individuals. The results were additionally confirmed by later archeological findings of tombstones with illustrations of horse riders.     

Acceleration patterns in the lower and upper trunk during running

Abstract

The purpose of the present study was to relate 3D acceleration patterns of the lower and upper trunk during running to running gait cycle, assess the validity of stride duration estimated from acceleration patterns, investigate speed-dependent changes in acceleration, and examine the test–retest reliability of these parameters. Thirteen healthy young men performed two running trials each on a treadmill and on land at three speeds (slow, preferred, and fast). The 3D accelerations were measured at the L3 spinous process (lower trunk) and the ensiform process (upper trunk) and synchronised with digital video data. The amplitude and root mean square of acceleration and stride duration were calculated and then analysed by three-way analysis of variance to test effects of running conditions, device location, and running speed. Bland-Altman analysis was used to evaluate the test–retest reliability. Marked changes in acceleration were observed in relation to foot strike during running. Stride durations calculated from the vertical accelerations were nearly equal to those estimated from video data. There were significant speed effects on all parameters, and the low test–retest reliability was confirmed in the anterior–posterior acceleration during treadmill running and the anterior–posterior acceleration at slow speed during treadmill and overground running.     

武术段位制在高校的推广研究

高校是全民健身的重要组成部分。依托高校普及发展武术段位制是实现全民健身和培养大学生终身体育意识的有效途径,关系着武术未来的兴衰。现行的武术段位制在高校中存在着缺乏推广和普及;晋级标准不太适合大学生;收费标准偏高;高校考评点不多等问题。文章提出加大教学与比赛力度;完善段位制教学体制,另设考段费用标准;增加考评点和考试次数,适当降低申报机构条件等对策,以促进武术及段位制在高校的推广和发展对策。