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针对医院眼科病床的安排问题,根据排队论原理制定了一系列的评价指标。通过对530例病人数据的分析,建立了改进的病床安排模型,并用概率统计方法和计算机仿真模拟,对改进前后的模型进行比较和评价,给出了估计病人等待入院时间的方法。对于医院提出的新的手术时间约束和病床分配约束,通过方案的计算比较和非线性整数规划,得到了最优化的结果。 相似文献
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《赤峰学院学报(自然科学版)》2017,(24)
本文为解决医院眼科部门合理安排病床问题建立多服务台有优先权的排队模型.以统计学方法为基础,将各种不同用途的指标组成病床安排评价指标集合,最终构建评价指标体系.实践结果表明,医院能够更好地合理安排床位,而且病人对医院服务的满意度都有所增加. 相似文献
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针对某眼科医院病人排队等候时间长的问题,运用Markov生灭过程构建合理评价指标体系,并利用具有约束条件的线性规划方法设计了病人平均住院时间最短的病床安排模型I,给出各类病人入院的大致时间区间.考虑周六、日不安排手术或病床比例大致固定等模型深入的问题时,对病床安排模型I作出相应的调整与评价.最后,基于缩短病人平均逗留时间给出了病床安排模型II和病床分配比例. 相似文献
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以排队论理论为基础,建立了医院眼科病人排队系统的数学模型.首先,建立了对医院病床安排系统进行综合评价的指标体系,并对现有FCFS规则扣改进规则进行了评价;然后,建立了区间估计模型,使得病人在门诊时就被告知大致入住时间.最后,建立了多指标床位分配模型,得出了床位的最佳设置值. 相似文献
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《佳木斯教育学院学报》2018,(1)
在流行生态文化旅游地产开发的当下,文章探究了生态文化旅游地产的发展起源、开发模式及发展动态趋势,通过不同的分类并创建相应的评价模型来进行案例分析,探讨、研究出生态文化旅游地产发展的开发模式。 相似文献
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采用运筹学排队论原理对医院门诊病人的排队系统进行研究,提出医院病床设置的最佳值,并与医院现在的住院安排做对比,为医院的管理模式提供改进建议和科学的理论依据.同时,应用核密度估计初步判断病人的术后恢复时间,以及规定时间段内出院的病人人数.该方法可以应用于医院各类疾病的病床安排和时间估计,是一种科学、有效的方法. 相似文献
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通过对矿区可持续发展系统协调性评价的比较研究,建立了一个新的较全面的矿区可持续发展系统评价模型。通过案例对该模型进行了论证。 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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罗艳萍 《读与写:教育教学刊》2008,5(6)
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity. 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献
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RUZBEHANI Mohsen 《重庆大学学报(英文版)》2004,3(1):20-25
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec… 相似文献
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Richard Denner 《海外英语》2007,(4):14-15
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose. 相似文献