传感器网络操作系统TinyOS 2.x关键技术分析     

刘平  李贯峰 《人天科学研究》2014,(10):28-30

TinyOS是针对无线传感器网络特点设计的一种嵌入式操作系统。从操作系统TinyOS 2.x的特点出发,描述了TinyOS 2.x的组件体系结构、运行机制和消息级通信模型,可为更好地了解TinyOS 2.x操作系统提供参考和依据。  相似文献   

用气功提高短跑速度的研究     

石爱桥  赵凤英 《武汉体育学院学报》1996,(4)

短跑运动是一个科学性很强的项目，科研人员一直不断研讨新的训练途径和方法。本文通过多年的实验与重复实验研究，说明气功结合短跑训练，可以有效地提高短跑运动员的放松能力；有效地促进训练后的疲劳消除；有效地改善神经和生理机能，从而提高短跑成绩。并对以上结论进行了理论分析。  相似文献   

以培养学生创新素质为宗旨组织专业实验课教学   总被引：1，自引：0，他引：1  

刘长久  姜吉琼  刘勇平  尚伟 《高教论坛》2004,(6):109-111

理工科高等学校的专业实验是实施培养大学生创新精神和实践能力极为重要的一环。教师思想观念的转变，以培养学生创新精神和实践能力为宗旨对专业实验课的内容安排、教学方式以及考核办法进行有效的教学改革和建立可行的运行机制是实施的关键。  相似文献   

高职“四方联动”校企合作模式的实践与探讨     

何晓春  周艳春 《南通职业大学学报》2008,22(1):33-36

从分析国内外校企合作的模式入手,论述了南通职业大学进行的政府、行业、企业与学校四方联动校企合作的新模式,即政府引导、行业主导、企业合作、学校参与项目合作、技术开发、培训员工等,并提出在校企合作中互惠共赢是基础、机制建设是保障,教学改革是核心。  相似文献   

商品流通企业存货成本应包括进货费用     

胡德新  徐汉峰 《孝感职业技术学院学报》2008,11(1):89-91

我国于2006年出台的企业会计准则冲破了1993年和2001年两次会计制度改革的禁区,与国际准则接轨,将商品采购环节的进货费用全部计入存货的采购成本,对已售商品的进货费用或金额较小的进货费用又要计入经营费用。  相似文献   

Comparison of foot strike patterns of barefoot and minimally shod runners in a recreational road race     

《运动与健康科学(英文)》2014,3(2):137-142

BackgroundPrevious studies of foot strike patterns of distance runners in road races have typically found that the overwhelming majority of shod runners initially contact the ground on the rearfoot. However, none of these studies has attempted to quantify foot strike patterns of barefoot or minimally shod runners. This study classifies foot strike patterns of barefoot and minimally shod runners in a recreational road race.MethodsHigh-speed video footage was obtained of 169 barefoot and 42 minimally shod distance runners at the 2011 New York City Barefoot Run. Foot strike patterns were classified for each runner, and frequencies of forefoot, midfoot, and rearfoot striking were compared between the barefoot and minimally shod groups.ResultsA total of 59.2% of barefoot runners were forefoot strikers, 20.1% were midfoot strikers, and 20.7% were rearfoot strikers. For minimally shod runners, 33.3% were forefoot strikers, 19.1% were midfoot strikers, and 47.6% were rearfoot strikers. Foot strike distributions for barefoot and minimally shod runners were significantly different both from one another and from previously reported foot strike distributions of shod road racers.ConclusionFoot strike patterns differ between barefoot and minimally shod runners, with forefoot striking being more common, and rearfoot striking less common in the barefoot group.  相似文献   

Strike type variation among Tarahumara Indians in minimal sandals versus conventional running shoes     

《运动与健康科学(英文)》2014,3(2):86-94

PurposeThis study examined variation in foot strike types, lower extremity kinematics, and arch height and stiffness among Tarahumara Indians from the Sierra Tarahumara, Mexico.MethodsHigh speed video was used to study the kinematics of 23 individuals, 13 who habitually wear traditional minimal running sandals (huaraches), and 10 who habitually wear modern, conventional running shoes with elevated, cushioned heels and arch support. Measurements of foot shape and arch stiffness were taken on these individuals plus an additional sample of 12 individuals.ResultsMinimally shod Tarahumara exhibit much variation with 40% primarily using midfoot strikes, 30% primarily using forefoot strikes, and 30% primarily using rearfoot strikes. In contrast, 75% of the conventionally shod Tarahumara primarily used rearfoot strikes, and 25% primarily used midfoot strikes. Individuals who used forefoot or midfoot strikes landed with significantly more plantarflexed ankles, flexed knees, and flexed hips than runners who used rearfoot strikes. Foot measurements indicate that conventionally shod Tarahumara also have significantly less stiff arches than those wearing minimal shoes.ConclusionThese data reinforce earlier studies that there is variation among foot strike patterns among minimally shod runners, but also support the hypothesis that foot stiffness and important aspects of running form, including foot strike, differ between runners who grow up using minimal versus modern, conventional footwear.  相似文献   

沉重的翅膀,艰难的飞翔——中国现当代文学中女性追求解放的痛苦之旅     

汪芸 《四川职业技术学院学报》2007,17(3):7-39

在近一个世纪的中国现当代文学史上，女性文学是一朵绚丽的奇葩，而其表现女性对于自由解放的追求也成为一个永恒的主题。从“五四”觉醒的女性到当下“真实”的女人，无不在彷徨而执着中寻求着自身的生存状态和生命价值，然而由于历史沉积的原罪意识使得她们始终不能彻底地解放自己．  相似文献   

特殊儿童音乐治疗机制、功能及实施原则   总被引：3，自引：1，他引：3  

王和平  杜晓新  曹静萍 《中国特殊教育》2004,(2):80-84

为了提高特殊儿童康复教育质量 ,丰富训练内容和形式 ,促进相关从业人员专业技能发展 ,本研究就特殊儿童音乐治疗的基本问题加以综述 ,重点讨论该技术在促进特殊儿童知觉动作、语言、社会技能、情绪、认知等能力发展的功能 ;结合实践阐述实施原则 ,如以儿童主动发展为主、治疗内容生活化、团体治疗为主个别治疗为辅等 ;所以 ,借鉴和吸收音乐治疗的理论和技术并运用于特殊儿童教育实践中是一有意义的尝试。  相似文献   

管办评三方的权力边界能够完全廓清吗——基于不完全契约理论的思考     

孙阳春 《复旦教育论坛》2019,17(6):70-75

厘清权力关系、廓清权力边界是管办评有效分离的核心要义。学者们已经关注到“权力边界的模糊、不清晰”所造成的“错位、越位、缺位”等教育治理困境，并从不同角度为厘清权力边界做出了卓有成效的努力。从不完全契约理论出发进行权力厘定，发现管办评三方的确定性权力边界可以厘清，但剩余权力的边界却是无法廓清的；因剩余权力的存在而导致的边界模糊地带始终存在，且无法消除；只有通过剩余权力的规制才能有效突围因剩余权力边界模糊带来的治理困境。基于此提出了“规制剩余权力与厘清确定性权力边界”并重的观点，以及两手共同协力才能破解教育治理困境的政策建议。  相似文献