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本文建立了一个安排单循环赛程的优化组合数学模型．本模型主要通过控制比赛中各队两场比赛中间休息的场次数，使其在一定的范围内变化，进而使各队每场比赛后都能得到均等的休息．本文中得出了两个重要公式：1)各种可能的赛程中，各队所有可能的休整场数最小值的上确界计算公式为：m1=[(n-3)/2)：2）各种可能的赛程中，各队所有可能的休整场数最大值的下确界计算公式为：M1=[n/2]。将各队每两场比赛中间相隔的场次数控制在[m1,M1]内。可以得到较优化的赛程、 相似文献
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李礼 《初中生学习(中考新概念)》2005,(12)
引子：在篮球比赛中，每一个球队都和其他球队进行一场比赛，请写出m个球队共比赛的场数n的公式。由于每一个球队都和其他球队进行一场比赛，则每个球队共比赛(m-1)场；m个球队共比赛的场数为m(m-1)，但其中有一半是重复的，故共比赛的场数公式是：n=(m(m-1))/2。这个公式及其反映出的思维方式在几何中也有重要的应用。举例说明如下：一、确定线段的条数例1如图，直线上有几条线段? 相似文献
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人教版七年级数学上册《整式的加减》习题2.1第9题题目是:3个球队进行单循比赛(参加比赛的每一个队都与其他所有的队各赛一场),总的比赛场数是多少?4个队呢?5个队呢?n个队呢?解析:3支球队进行单循环比赛,每支队都要与另两支队比赛,每场比赛都有两支队参赛,除去重复的,共有2+1=3场比赛;4支球队共有 相似文献
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初中代数第一册有一道题是这样的:4个球队进行单循环比赛,总的比赛场数是多少?此题的解题思路:每一个球队都和其它球队进行一场比赛,即进行(4—1)场,则4个球队共赛4(4—1)场,而每两个球队只需赛一场,上面的比赛场次重复计算一次,故总的比赛场数应是4(4-1)/2=6场.如果我们推广到n个球队参加单循环比赛,那总的比赛场数是多少呢?也可以用相同的思路:每个球队都和其它球队进行一场,即(n—1)场,则n个球队共赛 相似文献
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童严明 《中学课程辅导(初一版)》2004,(7)
题目:3个球队进行单循环比赛(参加比赛的每一个队都与其他所有的队各赛一场),总的比赛场数是多少?4个球队呢?5个球队呢?写出m个球队进行单循环比赛时总的比赛场数n的公式.(九年义务教育三年制代数课本第一册第23页B组第2题.) 分析:解法一:易知,两个球队需赛1场.3个 相似文献
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In three experiments, we examined the effect on the patterns of responding noted on fixed interval (FI) schedules of prior
exposure to a range of interval and ratio schedules. Rats leverpressed for food reinforcement on random ratio (RR), random
interval (RI), or variable interval (VI) schedules prior to transfer to FI schedules. In Experiment 1, prior exposure to an
RR schedule retarded the development of typical FI patterns of responding. Exposure to a yoked RI schedule produced even greater
retardation of typical FI performance. This effect was replicated in Experiment 2, using a within-subjects design. Rats responded
on a multiple RR-RI schedule prior to a multiple FI-FI schedule. Typical FI performance emerged more slowly in the component
previously associated with the RI than with that associated with the RR. In Experiment 3, exposure to an RR schedule retarded
the development of FI performance to a greater extent than did exposure to a VR schedule. The latter schedule was programmed
to allow the possibility that inhibitory control would develop after reinforcement. These results confirm that ratio schedules
independently result in the disruption of FI responding. This effect was not long lasting and cannot be used plausibly to
explain species differences in responding to FI schedules. However, it does suggest that temporal control—as manifested by
the transfer of inhibitory control from one schedule to another—could facilitate movement between interval schedules. 相似文献
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Four pigeons pecked for food reinforcement on variable interval 1-min schedules and on the variable-interval 1-min components of multiple, concurrent, and pseudoconcurrent schedules. The pseudoconcurrent schedule provided only one schedule of reinforcement; but, any reinforcer could be collected by responding on either of two keys. The rate of responding generated by the variable interval schedule was not greater than the rates of responding generated by the components of the complex schedules. But, the rate of reinforcement obtained from the variable interval schedule was greater than the rates of reinforcement obtained from the components of the multiple schedule. These results may contradict the equation proposed by Herrnstein (1970). The equation predicts that the rate of responding generated by a schedule of reinforcement will be greater when the schedule appears alone, than when it appears as one component of a complex schedule. 相似文献
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利用层次分析法,探讨了某学院基础部绩效工资的分配问题.首先根据团队的业绩,将绩效工资分配给基础部内的各个团队;然后根据个人业绩,将绩效工资在各个团队内进行完全的分配;最后总结了基于AHP的高校绩效工资分配的两种方法. 相似文献
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[摘要]为了解湖南省篮球传统校运动队的建设情况,对参加2011年湖南省中学生篮球比赛的21支球队进行了调查研究,结果表明各队均坚持常年训练和参加省市两级的中学生篮球比赛,但每年参加的比赛偏少,水平不高。影响其发展的主要原因是队伍构成不尽合理、学训矛盾突出和经费投入严重不足。建议制订针对性的发展规划,加强教练员和运动员的培养力度,加大经费投入力度以促进篮球传统校运动队的发展。 相似文献
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The effects of different schedule requirements at reinforcement on patterns of responding by pigeons were assessed under conjunctive schedules with comparable response-number requirements, Under one conjunctive schedule (conjunctive fixed-interval fixed-ratio schedule), a response was reinforced after a 6-min interval had elapsedand a specific minimum number of responses had been emitted, Under a second conjunctive schedule, a response was reinforced after the 6-min fixed interval and upon completion of a tandem schedule requirement (conjunctive fixed-interval tandem schedule), This schedule retained the same required minimum number of responses as the first conjunctive schedule, but responses were never reinforced according to a fixed-ratio schedule; the tandem schedule was comprised of a fixed-ratio and a small (.1 to 10.0 sec) fixed-interval schedule, Under the conjunctive fixed-interval fixed-ratio schedule, responding was characterized by an initial pause, an abrupt transition to a high response rate, and a second transition to a lower rate that prevailed or slightly increased up to reinforcement, Under the conjunctive fixed-interval tandem schedule, pauses were extended, response rates were lower, and the initial high rate of responding was generally absent, The above effects depended upon the size of the fixed interval of the tandem schedule, The distinct pattern of responding generated by conjunctive fixed-interval fixed-ratio schedules depends upon occasional reinforcement of fixed-ratio responding and not merely on the addition of a minimum number of required responses. 相似文献
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中国男排与世界强队发球技术运用的比较研究 总被引：1，自引：0，他引：1
席振坤 《唐山师范学院学报》2007,29(5):113-115
以2006年世界男排联赛成都赛区中国男排和与赛队的比赛为研究对象,对现代男子排球发球技术运用进行对比研究,结果表明:中国男排运动员在发球得分、发球效果与世界强队的差距较大。加强发球技术的训练,重视运用策略,降低失误率对取得比赛的胜利有着重要的作用。 相似文献
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对2001-2002赛季CBA总决赛八一、东方队攻防能力的探析 总被引：5，自引：0，他引：5
吴晓鸣 《喀什师范学院学报》2002,23(6):89-92
通过对2001—2002赛季CBA总决赛4场比赛的分析，揭示出八一、东方两队攻守的主要特点及其存在的不足． 相似文献
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中锋是球队中不可或缺的重要组成部分,CBA是目前我国在亚洲水平最高的篮球职业联赛之一,通过对05-06赛季的CBA几支优秀球队和中锋球员的技术统计,分析中锋在球队中的作用,有助于教练员认识中锋在球队中起到的作用,并且加以利用． 相似文献
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Pigeons were studied on multiple variable-ratio yoked-variable-interval schedules in which components had equal rates of food reinforcement and appeared equally often on each of two keys. Interpolated between component changes on the final multiple schedule were 10-sec probes in which both schedule stimuli were present, one on each key. During multiple schedule training, variable-ratio response rates were greater than yoked-variable-interval rates; however, response rate differences in the components were not a function of the mean ratio value for the 40-to-320-ratio range studied. During the choice probes, subjects responded more to the stimulus associated with the interval schedule than to the one associated with the ratio schedule. It was concluded that pigeons prefer interval schedules over equal reinforcement rate ratio schedules, because the former generate fewer responses per reinforcement. 相似文献