论衡阳影戏的宗教仪式功能

衡阳影戏和其他地区的影戏一样具有多方面的价值和功能,但作为衡岳文化的一部分,这些功能在具体内容、表现方式等方面都有着浓郁的地域色彩.衡阳影戏具有很强的宗教仪式功能,这主要是体现在演出的"开台"、"扫台"仪式,以及某些特定场合如"新屋戏"、"还愿戏"的演出过程中.     

河北省旅游产业发展问题分析

随着经济社会的发展,中国已进入一个国内旅游大发展的临界点;同时,中国在世界旅游市场中的地位迅速提高.据世界旅游组织预测:到2020年中国将成为世界上最大的旅游目的地国家,同时将成为世界十大旅游客源国之一.在此大背景下,河北省作为中国北方的重要省份,旅游资源十分丰富,如何将丰富的旅游资源转变为经济资源,如何将河北省发展为旅游强省,旅游业发展战略研究将对河北省旅游业实现长期、深入、健康的发展具有重要意义.     

对偶问题在经济管理中的应用

企业的管理者对企业的生产计划,成本估算,生产过程管理以及市场预算对企业起到关键作用。文章根据市场及企业本身的具体情况,利用线性规划的对偶问题原理建立相应的数学模型,用线性规划中的对偶问题原理加以分析,为企业决策者提供合理决策的理论依据。     

The Metabolic Cost of Two Ranges of Arm Position Height with and without Hand Weights during Low Impact Aerobic Dance

Abstract

To determine the energy cost of low impact aerobic dance while varying arm movement height and the use of hand weights, 10 adults volunteered to participate in four choreographed trials. All trials consisted of identical leg movements. Arm movements, however, were performed above shoulder level both with and without 0.9-kg hand weights and below shoulder level both with and without 0.9-kg hand weights. Open circuit spirometry was employed throughout the 10-min videotape guided trials, and heart rate was measured by telemetry. Neither the use of hand weights nor the change in arm position height significantly altered the energy cost of low impact aerobic dance. However, heart rate responses were significantly different. Caution should be observed by aerobics instructors and participants as to the use of heart rate as an indicator of intensity for low impact aerobic dance.     

室外冰场环保清雪车的研制

冰雪运动在我国北方很盛行,高校滑冰课是冬季体育课主要课程之一,但传统的人工维护冰场,速度慢、质量差,影响了冰上运动的普及和发展。为了解决人工清雪费时费力、效率低、清扫效果差的问题,课题组进行了室外冰场环保清雪车的研制工作。设计制造了环保电动车,配有螺旋推雪器和皮带扫雪刷并用的扫雪方式。用机械替代人力清雪能节省人力,速度快,效果好,对普及和推广冰上体育运动有实际意义。     

在影子空间里开展数字实践

为解决当前网络教学和未来数字教育中如何开展实习、实验等实践教学的难题,基于数字教育的概念,提出开展"数字实践"的新构想.定义了影子空间和数字实践的概念,研究了数字实践的特征和可开展的数字实践项目,研究并给出了影子空间里开展数字实践的途径与方式.结果 显示,与生产实践一样,数字实践也可以认知工程现场,领悟结构原理和工作原...     

流光溢彩——谈王家卫电影的光影魅力

光影作为造型语言的重要表现手段,历来受到电影工作者的重视。王家卫电影利用表现性光影塑造出分割、破碎的空间;以光影塑造场景氛围,烘托气氛,表现角色的性格特征和内心情感;运用表现性光影追求唯美的视觉效果和艺术境界。王家卫电影的光影艺术是一种抽象的视觉语言符号,是一种高度抽象化的真实,王家卫的成功尝试拓展了电影的创作空间和表现手法。     

基于实船动力学测试信息的我国优秀女子赛艇运动员技术特征分析

在研制了一种同步检测赛艇运动员手与脚运动生物力学信息的水上实船多源传感信息获取与评价系统的基础上,将该系统长期应用于国家队和部分省队。通过该系统采集国家队两名女子公开级运动员在桨频Sr=32下的实船训练数据,分别从动作结构、桨下支点、手脚配合、左右两边发力对称性等方面对两名运动员的技术特征进行分析,揭示了赛艇运动中的关键技术问题。     

Age-Related Corresponding Relationships of Controlled Force Exertion Measured by a Computer-Generated Sinusoidal and Quasi-Random Display

This study examined age-group corresponding relationships of the controlled force exertion based on sinusoidal and quasi-random waveforms in 175 right-handed male adults aged 20 to 86 years. The subjects were divided into 3 groups based on age-level: 53 young (mean age 24.6, SD?=?3.3 years), 71 middle aged (mean age 44.3, SD?=?8.7 years), and 51 elderly (mean age 69.3, SD?=?6.4 years). The participants matched their submaximal grip strength by the dominant hand to changing demand values displayed as either a sinusoidal or a quasi-random waveform appearing on the display of a personal computer. The quasi-random waveform was changed in π with amplitude and in π/2 with frequency (peak and mean frequency were 0.1 Hz in both waveforms). The participants performed the controlled force exertion test three times with a 1-min interval (one trial was 40 sec) after one practice trial using the dominant hand. The measurement order was randomly assigned. The total of the differences between the demand value and grip exertion value for 25 sec were used as an evaluation parameter. The coefficient of variance was almost the same range in all age groups in both waveforms (CV_SW ?=?30.8–35.6, CV_RW ?=?26.3–37.7), but the elderly group showed the highest value in the quasi-random waveform. Significant correlations were found among the sinusoidal and quasi-random waveforms in the young, middle-aged, and elderly groups, but significant differences were not found in the correlations among each age group. The controlled force exertion evaluation based on the sinusoidal and quasi-random waveform displays has a moderate relationship, and this relationship does not show age-level differences.     

Age and Individual Differences in Controlled Force Exertion Measured by a Computer-Generated Sinusoidal and Quasi-Random Display

This study examined age group and individual differences in controlled force exertion by emulating sinusoidal and quasi-random waveforms in 222 right-handed female adults aged 20 to 86 years. The subjects matched their submaximal grip strength by the dominant hand to changing demand values displayed as either a sinusoidal or a quasi-random waveform appearing on the display of a personal computer. A total of the differences between the demanded value and grip exertion value for 25 seconds was used as an evaluation parameter. The measurements showed a tendency to increase across the age groups in both waveforms. Significant second-order curve regressions were identified, but there was no significant difference in the increase rates of both waveforms. Analysis of variance showed non-significant differences among means of both waveforms in all age groups, and the differences between means in groups of participants over 50 and 20- to 24-year-olds increased in both waveforms. Individual differences were almost the same in both waveforms.