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关于方程X^n=1在有限群内的解
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作者 李胜林 《湖南城市学院学报》 1989年第6期56-59,共4页
1903年Frobenius证明了:一个有限群G,如果n整除它的阶,则方程x^n=1在G内解的个数是n的倍数。与这个定理有关的一个猜想是:如果n整除有限群G的阶,且方程x^n=1在G内恰好有n个解,则这些解作成G的正规子群。关于这个猜想目前已有的两个结论... 1903年Frobenius证明了:一个有限群G,如果n整除它的阶,则方程x^n=1在G内解的个数是n的倍数。与这个定理有关的一个猜想是:如果n整除有限群G的阶,且方程x^n=1在G内恰好有n个解,则这些解作成G的正规子群。关于这个猜想目前已有的两个结论如下: 展开更多
关键词 有限群 X^n=1 正规子群 可解群 FROBENIUS 单群 单位元 解集 休成 原象
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一种新的仰泳教学法——利用升力的仰卧漂浮法
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作者 梁德露 《山东体育科技》 1986年第2期40-43,共4页
这里介绍一种新的漂浮力法——利用升力的仰卧漂浮法。运动员在水中游进当身体与移动方向具有仰角时,平行于身体移动方向的那部分力为阻力,垂直于移动方向的那部分力为升力,这个升力起着抬高身体的作用;当身体俯卧或仰卧时,两手成适当... 这里介绍一种新的漂浮力法——利用升力的仰卧漂浮法。运动员在水中游进当身体与移动方向具有仰角时,平行于身体移动方向的那部分力为阻力,垂直于移动方向的那部分力为升力,这个升力起着抬高身体的作用;当身体俯卧或仰卧时,两手成适当仰角做与前进方向相垂直的横向左右拨水(如蛙泳的划臂), 展开更多
关键词 漂浮法 移动方向 力法 模仿练习 合力作用点 关节固定 月卜 水上 后撑 休成
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发扬“泪水+汗水”的精神
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作者 刘孚威 《江西老区建设》 1986年第1期25-,共1页
省委书记万绍芬同志曾向大家推荐《农民日报》刊登的一篇感人的好文章。
关键词 万绍芬 《农民日报》 人民公仆 太平官 老区建设 党性强 宫县 热心于 休成 智力开发
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运动后留心身体的5个“求救”信号
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作者 刘辉 《家庭医药(快乐养生)》 2015年第7期26-26,共1页
虽然运动对于增进健康、放松身心大有好处,但是如果一味追求运动量却不顾身体发出的信号,结果可能会适得其反。头痛许多人运动后不但没有达到想要的健身效果,反而头痛了,这究竟是什么原因?运动时,交感神经较为兴奋,如果缺乏适当暖身,或... 虽然运动对于增进健康、放松身心大有好处,但是如果一味追求运动量却不顾身体发出的信号,结果可能会适得其反。头痛许多人运动后不但没有达到想要的健身效果,反而头痛了,这究竟是什么原因?运动时,交感神经较为兴奋,如果缺乏适当暖身,或进行非规律性的运动时,就有可能会导致头痛。大部分头痛只要休息就可获得改善。但预防胜过治疗,应确实做好运动前的暖身,让身体提早做准备,或是避免太过剧烈的运动。 展开更多
关键词 健身效果 迟发性肌肉酸痛 全松 肌群 微小损伤 电解质饮料 血液循环 休成 冰敷 不平衡
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Mechanism of Dormancy in the Buds and Cambium of Eucommia ulmoides 被引量:2
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作者 Kalima N’Koma MWANGE 王学文 崔克明 《Acta Botanica Sinica》 CSCD 2003年第6期698-704,共7页
This paper describes changes in the structure of buds and vascular cambium as well as in protein content of one-year-old dormant branches of Eucommia ulmoides Oliv. in water-culture conditions. Results confirm the exi... This paper describes changes in the structure of buds and vascular cambium as well as in protein content of one-year-old dormant branches of Eucommia ulmoides Oliv. in water-culture conditions. Results confirm the existence of 2 quiescences (Q1, Q2) and 1 rest (R) phases in this tree during the dormancy period. In the R time, the E. ulmoides cambium was unable to reactivate even though the tree was subjected to exogenous IAA, suitable temperature or required luminosity. Furthermore, pistillate trees entered the dormant phase earlier than staminate ones. The protein content in the bark during Q1 increased significantly ( P < 0.01), but drastically decreased in the R period, before rising up again at the onset of Q2 ( P < 0.01). Even though the change pattern of protein content was similar, its occurrence is much earlier in staminate than in pistillate plants. SDS-PAGE revealed a 'special' protein band of 11.8 kD in the transitional Q1-R-Q2 stages. This 'special' protein bands would be related to the cambial dormancy and to the regulation of the Q1-R-Q2 transition. 展开更多
关键词 Eucommia ulmoides IAA QUIESCENCE REST special protein
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Metabolic rates and biochemical compositions of Apostichopus japonicus (Selenka) tissue during periods of inactivity 被引量:5
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作者 包杰 董双林 +3 位作者 田相利 王芳 高勤峰 董云伟 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2010年第2期218-223,共6页
Estivation, hibernation, and starvation are indispensable inactive states of sea cucumbers Apostichopusjaponicus in nature and in culture ponds. Generally, temperature is the principal factor that induces estivation o... Estivation, hibernation, and starvation are indispensable inactive states of sea cucumbers Apostichopusjaponicus in nature and in culture ponds. Generally, temperature is the principal factor that induces estivation or hibernation in the sea cucumber. The present study provided insight into the physiological adaptations ofA. japonicus during the three types of inactivity (hibernation, estivation, and starvation) by measuring the oxygen consumption rates (Vo2) and biochemical compositions under laboratory conditions of low (3℃), normal (17℃) and high (24℃) temperature. The results show that the characteristics of A. japonicus in dormancy (hibernation and estivation) states were quite different from higher animals, such as fishes, amphibians, reptiles, and mammals, but more closely resembled a semi-dormant state. It was observed that the shift in the A. japonicus physiological state from normal to dormancy was a chronic rather than acute process, indicated by the gradual depression of metabolic rate. While metabolic rates declined 44.9% for the estivation group and 71.7% for the hibernation group, relative to initial rates, during the 36 d culture period, metabolic rates were not maintained at constant levels during these states. The metabolic depression processes for sea cucumbers in hibernation and estivation appeared to be a passive and an active metabolic suppression, respectively. In contrast, the metabolic rates (128.904-11.70 μg/g h) of estivating sea cucumbers were notably higher (107.85±6.31 μg/gh) than in starving sea cucumbers at 17℃, which indicated that the dormancy mechanism here, as a physiological inhibition, was not as efficient as in higher animals. Finally, the principle metabolic substrate or energy source of sea cucumbers in hibernation was lipid, whereas in estivation they mainly consumed protein in the early times and both protein and lipid thereafter. 展开更多
关键词 Apostichopus japonicus oxygen consumption rates chemical composition temperature periods of inactivity
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On suburban leisure and tourism development: a case study of Wangcong Shrine in Chengdu 被引量:1
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作者 HU Yang 《Ecological Economy》 2010年第3期247-253,共7页
Suburban leisure and tourism are important supplements to the suburban economic development and urban tourism and of great significance under the background of urban-rural integran'on Wangcong Shrine in Chengdu is st... Suburban leisure and tourism are important supplements to the suburban economic development and urban tourism and of great significance under the background of urban-rural integran'on Wangcong Shrine in Chengdu is still in the initial stage. Regarding the development Of tcowns the advantage of environment, transportation, Tourism development of Wangcong Sluine lands'cape, architecture, content, identity, and publicity as well. Development of suburban leisure travel is one direction of tourism development of Wangcong Shrine. The people of Chengdu are main target tourists of a one-day trip, And various parks, Farmer's House Tour, leisure villa and other suburban attractions are its competitors. To developing Wang- cong Shrine tourism, increase of historical contents is its focus. The positioning of the civilization of ancient Shu should be shifted to Shu civilization; and renewal of the Huangcheng (Imperial City) is necessary to attract more Chengdu people for short tour and leisure. 展开更多
关键词 Wangcong Shrine Suburban tourism Leisure tourism Chengdu
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The aesthetic arts and heritage conservation study of Hunan Tujia Waving Dance
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作者 Xinyuan Guo 《International Journal of Technology Management》 2013年第5期49-51,共3页
Tujia Waving Dance, as an important part of culture, has drawn the attention of many scholars in sociology and ethnology and researched by them in recent years, with the results one after another. But from the perspec... Tujia Waving Dance, as an important part of culture, has drawn the attention of many scholars in sociology and ethnology and researched by them in recent years, with the results one after another. But from the perspective of sports and culture to observe and understand the Waving Dance, there are still not many learners and their analysis is limited to the discussions of the value of fitness and the recreational sports, but being ambiguous on the classification of the Waving Dance and its genes discussions, with some problems having big controversy. We can start from the basic shape of the Waving Dance to identify its dance category, to determine its basic factor, and to analyze the diversity value of the Waving Dance. 展开更多
关键词 heritage conservation Tujia Waving Dance aesthetic arts.
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Main Content and Enlightenment of Western state retirement system
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作者 Shi Shuangyan 《International English Education Research》 2015年第6期98-100,共3页
The retirement age policy adjustment is again sharing the cost of the aging process, incentives to delay retirement life expectancy means that workers work longer. Developed by the elastic mechanism into retirement sy... The retirement age policy adjustment is again sharing the cost of the aging process, incentives to delay retirement life expectancy means that workers work longer. Developed by the elastic mechanism into retirement system framework, improve the flexibility of the retirement system, in curbing early retirement incentives to delay retirement, improve the elderly labor force participation rate, and achieved some success. The reform of the retirement system gradually into public view. To adapt to China's national conditions for the establishment of flexible retirement mechanism, western countries need to discuss flexible retirement system, in-depth analysis of the establishment of the special constraints flexible retirement mechanism, good theoretical advance preparation for retirement Mechanism. 展开更多
关键词 retirement age retirement pension international comparison
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“杠杆能否平衡”选择题的特殊解法
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作者 柏露枝 《物理教师》 1994年第5期40-41,共2页
杠杆能否平衡的选择题,学生解答甚感困难,究其原因,是学生对这类选择题的解答,方法单一,举措无双,现举数例以说明这类选择题的一些特殊解法。
关键词 特殊解 自由转动 极端情况 物理环境 块材 重心位置 相向运动 休成 对作 系统的结构
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新闻观和时代观
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作者 冯英子 《中国记者》 1988年第9期22-23,共2页
自从“一国两制”提出之后,我们报纸上对于台港澳的消息,已引起注意,不断出现“台港澳”的专栏新闻,报道当地消息。这诚然是一件好事,不过,在选材上,却不免仍然存在一些问题。试以某报某日的《台港澳新闻》为例,一个专栏里,收了四条新闻... 自从“一国两制”提出之后,我们报纸上对于台港澳的消息,已引起注意,不断出现“台港澳”的专栏新闻,报道当地消息。这诚然是一件好事,不过,在选材上,却不免仍然存在一些问题。试以某报某日的《台港澳新闻》为例,一个专栏里,收了四条新闻,其一曰:《台湾重金属污染严重》;其二曰:《台湾森林历经浩劫》;其三曰:《台湾南部蔓延登革热流行病》;其四曰:《台湾流行算命求神》。把四条新闻放在一起,人们就可以见到台湾这个地方,污染严重,疾病流行,迷信盛行,一句话,台湾人民生活在水深火热之中。当然,以台湾之大,这些消息自有他的根据。 展开更多
关键词 时代观 新闻观 重金属污染严重 一曰 主观随意性 休成 此君 八十年代 亚洲四小龙 用之
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革命军人的情怀
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作者 李雅萍 曾腾芳 《歌迷大世界》 2007年第4期16-17,共2页
关键词 休成 黄喜 羊河 维安 卫军 地火 江国 怀来
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乐途仕2010风尚标
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作者 陈晨 《优品》 2010年第5期77-77,共1页
浪漫与经典,是一个复杂的命题。它们可以是绅士,娓娓道来;也可以是贵妇,浅吟低颂。我们理解的浪漫,我们熟悉的经典,是名词、动词、形容词、是一对足够玄妙、慑人心神的词儿……今季,这份浪漫经典,随着时尚的季风拂过我们的脸庞,来到我... 浪漫与经典,是一个复杂的命题。它们可以是绅士,娓娓道来;也可以是贵妇,浅吟低颂。我们理解的浪漫,我们熟悉的经典,是名词、动词、形容词、是一对足够玄妙、慑人心神的词儿……今季,这份浪漫经典,随着时尚的季风拂过我们的脸庞,来到我们的身旁, 展开更多
关键词 鞋款 城市大气 季主 休成 舒适带 结合技术 超弹性 磨砂 橡胶鞋底 铬黄
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恶梦
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作者 雨墙 《朔方》 1989年第9期50-52,共3页
那年我二十来岁,上了××学院。开学的第一天上午,宿舍来了五个人。剩了门边那张高低床。老于来的时候,我们五个人玩扑克。他四十来岁个小体瘦脸上有若干根胡须。他先是将头伸进来光往里面瞪,我说:“你找谁?”他就走了进来。
关键词 翻过来 第三天 天会 人极 梦的解析 一本 休成 气极 龙床 人的声音
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A DISCRETE-TIME Geo/G/1 RETRIAL QUEUE WITH J-VACATION POLICY AND GENERAL RETRIAL TIMES 被引量:4
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作者 YUE Dequan ZHANG Feng 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2013年第4期556-571,共16页
The authors discuss a discrete-time Geo/G/1 retrial queue with J-vacation policy and general retrial times.As soon as the orbit is empty,the server takes a vacation.However,the server is allowed to take a maximum numb... The authors discuss a discrete-time Geo/G/1 retrial queue with J-vacation policy and general retrial times.As soon as the orbit is empty,the server takes a vacation.However,the server is allowed to take a maximum number J of vacations,if the system remains empty after the end of a vacation.If there is at least one customer in the orbit at the end of a vacation,the server begins to serve the new arrivals or the arriving customers from the orbit.For this model,the authors focus on the steady-state analysis for the considered queueing system.Firstly,the authors obtain the generating functions of the number of customers in the orbit and in the system.Then,the authors obtain the closed-form expressions of some performance measures of the system and also give a stochastic decomposition result for the system size.Besides,the relationship between this discrete-time model and the corresponding continuous-time model is also investigated.Finally,some numerical results are provided. 展开更多
关键词 DISCRETE-TIME generating function J-vacation policy Markov chain retrial queue.
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