Device for on-the-water measurement of rowing output

All those who compete in the sport of rowing have used the land rowing machine, Ergometer (commonly called the ‘erg’), manufactured by Concept II (Morrisville, Vermont, USA). Ergon is the Greek word for work, hence the Ergometer measures work. Rowers are commonly ranked according to their ‘erg score.’ The fault in this ranking is that the land Ergometer cannot account for many of the important technical aspects associated with rowing on the water. The goals of this project were to (1) develop a system for on-the-water measurement of work during rowing and then (2) demonstrate the potential of such a system to quantify performance and improve rowing technique. To achieve these goals, force was measured using strain gauges glued to the shaft of the rowing oar and angular displacement was measured using a potentiometer. The force and displacement measurements were sent to a microcontroller, which calculated the total work done in a particular stroke, as well as other parameters, and displayed the values to the rower. The parameters were used to evaluate the performance of three collegiate rowers on the water. The data were also used to plot force profiles, which were reviewed with each rower and the coach to illustrate the rowers’ habits and facilitate improving technique. One rower was ‘tutored’ with the device through five on-the-water practices, after which his force profiles and parameter values demonstrated significant improvement. The device not only provided a standard to which all rowers were compared on the water, but also supplied the rowers with important information on technical aspects of their strokes and pacing themselves.     

谈海船船员培训合格证评估项目的开设建设

阐述海船合格证培训评估的要求,保证评估项目开展应完善的设备和设施。     

非专业英语教学中英语歌曲的引入——以贵州民族大学空中乘务专业为例

迄今为止,如何让非母语学习者有效地习得语言一直都是困扰无数教学实践者和研究者们的难题。特别是在缺乏语言环境的条件下,英语基础薄弱的空中乘务专业的学习者对于英语学习更是无从着手,本文通过对80名空中乘务专业的学生二语课堂引入英文歌曲的实践,得出歌曲的使用发挥了艺考生的特长,能极大地调动学生学习语言的积极性,帮助学生习得词汇,使课堂教学达到既定的效果。笔者希望引入英文歌曲能为二语课堂提供一些有益的借鉴。     

并行算法的评析与设计

本文利用一种典型的并行随机存取计算机(PRAM)理论模型阐述并行算法一些简单的基本概念和技术,给出并行算法的一些评析和设计方法.     

高校教育技术人员队伍建设的现状与对策

高校教育技术人员队伍建议目前存在一些问题,与高校教育技术发展不协调。必须切实转变观念,采取相应措施,重视队伍建设促进高校教育技术理论和实践和谐发展。     

潜艇艇员体能训练探讨

潜艇艇员战训时,由于担负的任务和所处的环境特殊,要求其具有特殊的体能素质。采用文献资料法、专家访谈法,探讨了潜艇艇员体能的需求,提出相适应的体能训练方法和对策.     

建筑工程专业企业调查与专业建设的思考

针对企业对建筑工程专业毕业生的需求状况,分析了企业对高职毕业生的工作要求和高职毕业生在工作中存在的问题,并对目前的高职教育提出了建议。     

科技伦理"全员"论:想象的主体想象的活动

撇开具体的社会物质生活条件,撇开特定的社会历史形态,一些论者把科技伦理定义为全体科技当事人服务于全体人类。这种科技伦理“全员”论只不过是“想象的主体的想象的活动”,等于运用现象学还原的方法把社会历史因素存入了“括号”之中,充其量只是谢林的“理智直观”或胡塞尔的“本质直观”的产物,是地地道道的“唯心主义的非理性主义”;超现实、超历史、超阶级、超国家的科技伦理只是一种主观的虚妄;资本主义私有制生产关系下的科技活动及其异化、资本主义国家价值取向的“单向度”性,决定了科技伦理“全员”论不但是“认识论的贵族主义”,而且是“抽象的乌托邦主义”。唯物主义的科技伦理观的科学性就在于:从科技活动的现实出发、从现存的社会历史形态出发,去说明和解释科学技术的发生、发展及其伦理蕴含。惟其如此,我们的科技伦理学才能立足于“自己思维的此岸性”———不但帮助人们“解释世界”,而且指导人们“改变世界”。     

民航乘务专业抗眩晕能力训练实践模式研究

在高等职业教育体育课程改革的环境下,以民航乘务专业所必需的抗眩晕能力训练为例,从抗眩晕能力的事实性和重要性出发,以抗眩晕训练相关理论研究和科学依据为基点,构建民航乘务专业抗眩晕能力训练实践模式,并提出意志品质训练与抗眩晕能力训练的结合,以提高抗眩晕训练的最终效果。     

“海乘”职业从“邮轮经济”中淘金

邮轮作为一种新型旅游模式,经过数十年发展,逐渐形成许多国际型大都市城市经济发展的重要模式。邮轮作为一种交通和旅游的特殊工具,低调而神秘的世界豪华邮轮在向中国走近;同时众多国际邮轮公司为开发新兴的邮轮市场,纷纷将关注的焦点转向中国。由于海乘职业让人羡慕的优势特点,到国际豪华邮轮上做“海乘”已经成为不少年轻人的新选择。邮轮需求的优秀海乘人员资源严重短缺,为在校大学生提供了稳定的就业前景和选择。