对体育院校实验室开放管理模式的探讨

本文就体育院校实验室开放的目的,实验室开放基本要求,实验室开放的必要性和可能性,实验室开放管理模式等,提出了开放体育院校实验室管理项目方案的建议,便于实验室今后从管理模式上更能科学化、规范化管理。     

USB2.0技术在便携式测试系统中的应用

介绍了一种基于USB技术的便携式石油测井测试系统的设计,详细阐述了该测试系统的USB接口开发的方法数据通信过程。该系统使用DSP和FPGA的硬件架构,完成了测井数据的获取和格式转换,并利用USB控制芯片FT245BL实现了测井仪器与PC机之间的通信,实验结果表明该测试系统很好的满足了实验室仪器调试的需要。     

高校多校区教务管理系统的组网解决方案探讨

高校办学正经历着多校区办学模式,跨校区的网络建设为教学资源配置和管理实效影响很大。在物理实现成本还比较高昂的情况下,如何能更好的解决跨校区的教务管理系统运作。重点就基于反向代理公网服务器的学分管理系统,基于分布式的考试系统以及基于虚拟专用网的教学资源共享系统进行了解决方案的探讨。希望以此促进网络应用推动网络建设。     

浅谈KJ95N安全监控系统应急预案的应用

1 KJ95N安全监控系统简介 KJ95N安全监控系统于2008年在金能煤业分公司安装使用,该系统具有模拟量、开关量、传输、存储、处理、打印、声光报警、控制等功能,用于监测甲烷浓度、一氧化碳浓度、风速、温度、烟雾、馈电状态、风门状态、风筒状态、局部通风机开停、主要通风机开停,并实现甲烷超限声光报警、断电和甲烷风电闭锁控制.系统现配置两套工业控制机,具有主副机自动切换功能,配备专用打印机一台、数据上传服务器两台(一主一备)、光纤环网交换机三台、防病毒软件一套、系统设置局域网防火墙一台、安装了UPS后备电源一套(6kAV/2h)、思科交换机两台、避雷设施一套.     

一种燃煤发电企业智能煤样储存室的设计

通过计算机系统自动、准确控制机械手抓取存样瓶,机械装置在铺设导轨的封闭煤样储存室内定向移动,将存查煤样准确的存入存样柜或从存样柜中取出,并用实例说明样品存/取流程,同时系统自动提醒存查煤样销毁日期。本设计实现了燃煤发电企业存查煤样的智能、封闭管理。     

VLAN技术浅谈

VLAN是英文Virtual Local Area Network的缩写,即虚拟局域网。一方面,VLAN建立在局域网交换机的基础之上;另一方面,VLAN是局域交换网的灵魂。VLAN充分体现了现代网络技术的重要特征:高速、灵活、管理简便和扩展容易。是否具有VLAN功能是衡量局域网交换机的一项重要指标。网络的虚拟化是未来网络发展的潮流。     

基于PLC的智能车库管理系统设计

本文介绍了一种基于三菱FX2N系列PLC的智能化的车库管理系统。以PLC为控制核心,结合先进的计算机、信息、人工智能等技术,设计出一款稳定、安全、先进并且智能化程度高的车辆出入库管理系统。该系统能够实现车辆的自动检测,道闸控制以及车位信息实时显示等功能。此设计可以应用到不同的停车场管理中。详细阐述了系统功能的设计,以及软硬件的设计。     

福建省青少年运动员信息注册管理系统探析

目前福建省青少年运动员信息注册管理采用的是"运动员注册管理子系统",但该系统尚存在采集运动员基本身份信息的手段缺乏智能性、指纹识别率不高、所采集的运动员信息过于简单、缺乏信息公开查询功能、无法进行网络报名报项等不足。为进一步提高运动员信息注册管理的准确性和高效率,应对该系统进行改进,在系统中设置第二代身份证阅读器,采用识别率高的指纹仪器,增加运动员拓展信息的录入,增加数字照片导入、信息公开查询和报名报项的功能。     

鹅城站Unigear ZS1型10kV隔离柜电气闭锁回路创新设计

本文提出了鹅城换流站站用电系统1022,1023,106隔离柜操作过程中存在的安全隐患,并对1022,1023,106隔离柜电气闭锁回路进行简述。最后根据电气闭锁回路实际情况及安全操作的需要,提出相关隔离柜的电气闭锁回路的整改方案并最终实施。     

输电线路智能巡检系统

本文结合当前安徽省内500kV电压等级输电线路巡检工作的现实需要,介绍了基于计算机网络通讯技术开发的输电线路智能巡检系统的构成、工作原理、技术优势和特点.本系统软件能实现线路缺陷的网络闭环管理,并将国家电网公司标准化作业指导书融入其中,使输电线路巡检管理实时直观,达到线路巡检工作标准化、电子化、信息化、智能化和无纸化管理要求,本系统在输电线路巡检工作中的成功运用必将大大提高电网信息化管理的效率和质量,有效保障电网安全稳定运行,具有显著的社会、经济效益.     

Carbohydrate ingestion improves endurance performance during a 1h simulated cycling time trial

This study examined the effect of carbohydrate ingestion on metabolic and performance-related responses during and after a simulated 1h cycling time trial. Eight trained male cyclists (VO 2 peak = 66.5ml kg -1 min -1 ) rode their own bicycles mounted on a windload simulator to imitate real riding conditions. At a self-selected maximal pace, the cyclists performed two 1h rides (separated by 7 days) and were fed either an 8% carbohydrate or placebo solution. The beverages were administered 25 min before (4.5ml kg -1 ) and at the end (4.5ml kg -1 ) of the ride. With carbohydrate feeding, plasma glucose tended (P = 0.21) to rise before the time trial. Compared with rest, the plasma glucose concentration decreased significantly (P < 0.05) at the end of both rides, with no statistically significant difference being observed between treatments. Thereafter, plasma glucose increased significantly (P < 0.05) at 15 and 30 min into recovery, and was significantly higher at 30 min during the carbohydrate trial compared with the placebo trial. No significant changes in plasma free fatty acids were observed during the ride. However, a significant increase (P < 0.05) in free fatty acids was found at 15 and 30 min into recovery, with no difference between trials. Mean power output was significantly (P < 0.05) greater during the carbohydrate compared with the placebo trial (mean - S.E.: 277-3 and 269-3W, respectively). The greater distance covered in the carbohydrate compared with the placebo trial (41.5-1.06 and 41.0–1.06km, respectively; P < 0.05) was equivalent to a 44s improvement. We conclude that pre-exercise carbohydrate ingestion significantly increases endurance performance in trained cyclists during a 1h simulated time trial. Although the mechanism for this enhancement in performance with carbohydrate ingestion cannot be surmised from the present results, it could be related to a higher rate of carbohydrate oxidation, or to favourable effects of carbohydrate ingestion on the central component of fatigue.     

Science and medicine of rowing: A review

The biology and medicine of rowing are briefly reviewed. Effort in a 2000 -m race is about 70% aerobic. Because the boat (and in some instances a cox) must be propelled, successful competitors are very tall, with a large lean mass and aerobic power. Large hearts may lead to erroneous diagnoses of a cardiomyopathy. Large respiratory minute volumes must be developed by chest muscles that are also involved in rowing. The vital capacity is typically large, and breathing becomes entrained. Expiration cannot be slowed relative to inspiration (as normally occurs at high rates of ventilation) and the limiting flow velocity may be reached, with the potential for airway collapse. Performance is strongly related to the power output at the ‘anaerobic threshold’, and lactate measures provide a guide to an appropriate intensity of endurance training. Peak blood lactate levels are higher in males (commonly 11–19 mmol·l -1 and occasionally as high as 25 mmol·l -1) than in females (9–11 mmol·l -1), probably because males have a greater muscle mass in relation to blood volume. The skeletal muscles are predominantly slow twitch in type, developing an unusual force and power at low contraction velocities. Many rowers have a suboptimal diet, eating excessive amounts of fat. Lightweight rowers also have problems of weight cycling. Aerobic power and muscle endurance often change by 10% over the season, but such fluctuations can be largely avoided by a well-designed winter training programme. Injuries include back and knee problems, tenosynovitis of the wrist and, since the introduction of large blades, fractures of the costae.     

我国体育市场管理法规研究

采用调查法和比较法对全国体育市场立法和管理现状进行调查,对部分较早出台并有一定代表性的省市的体育市场管理法规的立法和管理情况进行了研究,提出了体育市场管理立法和管理的原则、基本程序、措施及其一般模式,为规范全国体育市场管理提供参考依据。     

重新认识体育的社会关联

体育与政治之间存在一个悖论，体育的发展与经济实力之间没有直线相关，体育与教育部分重叠，体育与宗教最为近缘，体育可借用科学手段，体育的艺术禀性日益明显，体育与养生反映着两种人生观。     

上海社区体育竞赛参与者的特点探析

本文在专家访谈、问卷调查、数理统计和文献资料分析的基础上,探析了上海社区体育竞赛参与者的特点、参与者对社区体育赛事运作管理的看法等问题。在此基础上从引进社区体育赛事的志愿者、整合社区体育赛事的各种资源、开发社区体育竞赛的无形资产、组建非营利性的专业团队、规范社区体育赛事的服务管理等方面提出了进一步满足上海社区居民日益增长的体育竞赛参赛需求的对策与措施。     

对全面把握游泳训练环节的探讨

从系统观点出发,结合训练实践,对全面把握游泳训练环节进行探讨。认为应强化非智力因素在运动员多年训练中的作用,在育材全过程中不断选材,从整体上把握动态训练的全过程,把培养高水平运动员的整个过程置于一个严格的科学控制之下。     

我国优秀游泳运动员出发技术辅助训练的研究

为改进我国优秀游泳运动员的出发技术,采用观测和实验方法,通过拍摄运动员陆上和水下出发技术录像以及出发计时,对出发技术进行运动生物力学诊断和分析。在此基础上,根据运动员自身特点和不同泳姿提出相应的入水启动方式,并研制出发训练辅助器材,对出发预备姿势、腾起角度以及飞行远度和入水角进行控制。实践证明:这是一种快捷、有效的出发技术辅助训练方法。     

运动性呼吸肌疲劳与耐力性项目的运动能力

影响和限制耐力性运动项目的成绩的生理因素是复杂的和多方面的,取决于训练的强度和运动成绩.大强度持续性运动可导致呼吸肌疲劳.运动性呼吸疲劳可能在决定运动耐量方面起到关键的作用：一方面通过直接影响运动肌力量的生成（外周疲劳）,另一方面,通过肢体用力自感不安反馈引起工作肌运动单位输出功率下降（中枢疲劳）.对呼吸肌进行训练,可能有助于提高耐力性项目的运动成绩.     

Identifying home advantage in international tennis and golf tournaments

A regression analysis of competitors' tournament results in relation to their world rankings was proposed to identify the effect of home advantage in international ‘grand-slam’ tennis and ‘major’ golf tournaments. The results provided little evidence of home advantage in either the grand-slam tennis or the golf tournaments held in 1993. The only possible evidence of home advantage was found in the Wimbledon tennis and the US Open golf championships. Even these findings can be explained, at least partially, by (1) the availability of information concerning the low world rankings of the British tennis players competing at Wimbledon, and (2) selective entry, allowing only the world's top-ranked foreign golfers into the US open golf tournament. In both cases, the lower ranking home competitors have a greater opportunity to perform above their anticipated world rankings. Therefore, provided entry into tennis and golf tournaments is truly ‘open’ to both the host nation's representatives and foreign competitors alike, home advantage does not appear to be a major factor influencing the competitors' performance in such competitions. These findings may be explained by the relatively objective nature of the scoring systems used in tennis and golf, unlike the subjective influence of refereeing decisions on the results of team-games such as soccer.     

青少年业余足球运动员运动倾向性5因素结构模型初探

根据Scanlan等人最新提出的运动倾向性理论模型,结合我国实际情况建立了青少年足球运动员运动倾向性5因素结构模型。运动倾向性被定义为:渴望和决心继续参加足球运动的心理状态。所建立的5因素结构模型认为,运动倾向性是由运动乐趣、参与选择、个人投入、社会约束及参与机会5个因素决定。经确定5个决定因素和运动倾向性的操作定义,编制了相应调查问卷,通过对北京市252名青少年足球运动员实测结果,建立运动倾向性及其影响因素的协方差结构模型,用Lisre 18分析的结果表明:该运动倾向性模型比较符合北京青少年足球运动员。其中运动乐趣、个人投入、参与机会和参与选择4因素对运动倾向性有影响;社会约束对运动倾向性影响不大。