高校体育教学中开展国防教育的思考

通过体育与国防的互动关系入手了,剖析体育既是强身健体的娱乐活动,也是提高国防能力的重要途径和手段;从高校体育教学功能和国防建设的要求上入手,提出在体育教学中开展国防教育是进行国防教育的补充和拓展,并具有得天独厚的优势,有助于形成终身国防意识;开展国防教育的关键是挖掘体育教育的文化功能,把爱国主义贯穿到体育教学中;最后提出将军事体育项目可引入高校体育教学中,既丰富了体育教学的内容,也是承载国防教育的良好载体,推进国防教育的开展和实施。     

Terminal allocation problem in a transshipment hub considering bunker consumption

This article investigates the method of allocating arriving vessels to the terminals in transshipment hubs. The terminal allocation decision faced by a shipping alliance has the influence on the scheduled arrival time of vessels and further affects the bunker consumption cost for the vessels. A model is formulated to minimize the bunker consumption cost as well as the transportation cost of inter‐terminal transshipment flows/movements. The capacity limitation of the port resources such as quay cranes (QCs) and berths is taken into account. Besides the terminal allocation, the QC assignment decision is also incorporated in the proposed model. A local branching based method and a particle swarm optimization based method are developed to solve the model in large‐scale problem instances. Numerical experiments are also conducted to validate the effectiveness of the proposed model, which can save around 14% of the cost when compared with the “First Come First Served” decision rule. Moreover, the proposed solution methods not only solve the proposed model within a reasonable computation time, but also obtain near‐optimal results with about 0.1～0.7% relative gap. © 2016 Wiley Periodicals, Inc. Naval Research Logistics 63: 529–548, 2016     

Optimal timing of switches between product sales for sports and entertainment tickets

Like airlines and hotels, sports teams and entertainment venues can benefit from revenue management efforts for their ticket sales. Teams and entertainment venues usually offer bundles of tickets early in their selling horizon and put single‐event tickets on sale at a later date; these organizations must determine the best time to offer individual tickets because both types of ticket sales consume the same fixed inventory. We model the optimal a priori timing decision for a seller with a fixed number of identical tickets to switch from selling the tickets as fixed bundles to individual tickets to maximize the revenue realized before the start of the performance season. We assume that bundle and single‐ticket customers each arrive according to independent, nonhomogeneous Markovian death processes with a linear death rate that can vary over time and that the benefit from selling a ticket in a package is higher than from selling the ticket individually. We characterize the circumstances in which it is optimal for the seller to practice mixed bundling and when the seller should only sell bundles or individual tickets, and we establish comparative statics for the optimal timing decision for the special case of constant customer arrival rates. We extend our analytical results to find the optimal time for offering two groups of tickets with high and low demand. Finally, we apply the timing model to a data set obtained from the sports industry. © 2007 Wiley Periodicals, Inc. Naval Research Logistics, 2008     

运动心理学在消防灭火攻坚组训练中的应用

运动心理学是研究人在从事体育运动时的心理特点及其规律的心理学分支,与体育学、体育社会学、运动生理学、运动训练理论和方法,以及其他各项运动的理论和方法有着密切的联系。通过分析当前消防攻坚组训练工作中存在的运动心理学上的问题,探讨、分析其原因,探讨运动心理学促进消防攻坚组训练工作,帮助攻坚组成员们创立良好的心理机制,保持良好的心理状态,促进官兵的身心健康,培养官兵健全的人格和坚强意志,使攻坚组成员们更好地完成党和人民赋予的各项任务。     

运动场馆火灾烟气蔓延规律数值模拟研究

运动场馆规模大、人员密集、功能复杂、用电负荷大、配电线路多、火灾荷载大,一旦发生火灾可能导致群死群伤恶性事故的发生。研究运动场馆火灾情况下烟气变化规律,能够更好的指导消防安全设计。以某运动场馆为例,应用火灾模拟软件对其火灾情况下烟气蔓延过程进行数值模拟研究,分析了常见自然排烟方式对烟气层的高度、温度、氧气浓度、一氧化碳浓度变化的影响,从而为运动场馆防排烟设计提供依据。     

体育教育专业学生体育消费现状调查分析——以石河子大学体育学院为例

研究学生群体的消费水平对衡量一个高校学生的消费观念具有很重要的现实意义。高校作为群众体育工作的一个重要的组成部分,对学生体育消费现状的把握更有利于推进群众体育工作的发展。本文综合运用文献资料法、问卷调查法以及比较分析法,对石河子大学体育学院体育教育专业的学生体育消费的现状进行调查与分析,总结出该校体育教育专业学生群体中的体育消费现状,寻求相应的措施以改善现状,并提出建议。     

燃汽轮机作为坦克动力的现状与分析

阐述了美国、俄罗斯应用燃汽轮机作为坦克动力的现状。假设将俄罗斯ГТД-1250燃汽轮机及其传动装置装入国产某型坦克动力舱,通过对发动机牵引力和燃油消耗量的计算,并与原型坦克进行对比分析,结果表明：燃汽轮机作为坦克动力在性能上能够满足使用要求。     

基于发动机工作过程计算的空气滤清器模型

针对二级滤清式自动抽尘空气滤清器进行研究,提出了其基于发动机工作过程计算的功率损失计算模型.该模型以发动机工作过程计算为基础,考虑了空气滤清器进气阻力与发动机工作过程之间的影响.通过实例计算,说明该模型能够用来模拟空气滤清器所造成的功率损失,随发动机工况的变化关系,从而为进一步模拟动力装置效率打下相应的基础.     

履带车辆悬挂系统振动仿真与减振器能耗分析

为研究履带车辆传统减振器的能耗与路况、车速的关系,应用动力学仿真软件RecurDyn建立了突出悬挂系统的履带车辆模型。依据国际标准,用不同等级的随机路面表示不同路况,并改变模型中的主动轮驱动转速,得到不同车速。仿真与分析结果表明:同一路况下,车速对减振器能耗的影响不大;同一车速下,路况越恶劣,减振器能耗显著增大。研究结果对履带车辆馈能悬挂的研究具有一定的指导意义。     

大学生消费行为调查分析及对策研究

目前大学生的消费意识、消费方式、消费观念已经在消费领域中显露出与已有经济收入的新富群体靠近的趋势,而这种超越自己学生身份的消费现象和观念值得关注和深思。文章通过分析S大学学生消费行为的现状,了解当前大学生消费中存在的具体问题,并提出了解决消费问题的主要对策和建议。