共查询到20条相似文献，搜索用时 421 毫秒
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共享心智模型的研究已有近20年的历史，从理论和实证研究两个方面对共享心智模型研究进行分析，指出研究的不足及对未来的展望． 相似文献
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旅游目的地吸引力建模研究 总被引：2，自引：0，他引：2
给出了旅游目的地的界定，并提出旅游目的地是一个动态的开放的集合的新概念．表述了旅游目的地新界定的涵义，并对其地域辐射性、动态稳定性、协同制约性、竞争合作性等特征进行了研究．提出了旅游目的地是由旅游资源、旅游产品、旅游市场营销、旅游行业结构要素组成，并研究了其结构模型，提出了旅游目的地要素结构指数概念及数学模型，并运用生产函数理论建立了旅游目的地吸引力指数模型． 相似文献
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在面临课程改革的今天，越来越多的人从事数学教育研究．然而数学教育研究的目的何在？数学教育可以回答什么样的问题？怎样的回答才是合理的？什么样的证据才能支持你的观点？如何收集这些证据？数学教育中的理论和模型是怎样的？如何评价这些模型和理论？有很多人试图用数学研究的观点和方法来做数学教育研究．本人在读完美国数学家、数学教育学家舍恩菲尔德的这篇原著后受益匪浅，于是试着将之编译出来和大家一起分享． 相似文献
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骆奎真 《中学物理教学参考》2000,29(8):7-8
物理学是研究物理现象及其变化规律的科学．一种重要的研究方法就是把研究对象抽象成某种理想模型，然后研究理想模型的运动变化规律．为什么不把实际的客体直接作为研究对象?物理模型具有哪些特点?如何运用模型进行研究?搞清楚这些问题，对物理教学和物理学习都大有益处。 相似文献
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在考虑交易成本的情况下，利用β-数建立了证券组合投资的多目标优化模型，并采用遗传算法研究了模型的求解． 相似文献
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张德耀 《福建教育学院学报》2007,(12):50-52
新课程呼唤有效的棱本教研和合作教研，在以反思研究为主体的同课研究事，不同的教师执教同一教学内容，显示不同的教学风格和设想，通过比较、鉴别。给同行教师以示范和启迪。同课研究是一项很有意义、值得推广的棱本教研活动。 相似文献
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迟秀军 《赤峰学院学报(自然科学版)》2012,(4):83-84
配送中心选址理论的发展总是与实际经济水平发展速度基本同步的,二者的发展趋势也基本相同．目前,世界各地都在大兴建设物流园区,从这一点上看,配送中心选址问题是将单一的配送中心选址转化为多个配送中心选址．近年来,国内外对未来配送中心的研究．大多数把研究的重点放在了建立符合实际情况的配送中心选址模型、应用有效的方法来求解该模型上．因而．建立配送中心选址模型并得出求解算法是配送中心选址研究的发展趋势． 相似文献
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比较研究法浅析 总被引：1，自引：0，他引：1
杨柳 《黑龙江教育学院学报》2010,29(6):64-65
比较法在历史科学研究中被普遍采用。没有比较,就不能有鉴别。历史科学的研究非常注重史料的鉴别。因此,我们要利用史料研究问题,就得先鉴别史料的真伪。要鉴别史料,就得运用比较的方法,比较史料的可靠度,才能得到准确而重要的历史材料。 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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Rajesh Kanoi 《海外英语》2007,(1):52
Today, Sunday morning, I sit thinking and typing at my computer. My thoughts are in my homeland, India and my body is in China. The body is here and mind there for a good reason. Mr. Hu is president and I am resident and both are in each other's countries (what a difference the absence of one small letter makes!). Mr. Hu will return in a few days and I will stay on longer. 相似文献
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正A One day a pig went to the stable(马棚)to see his good friend,an oldhorse,and was going to stay there forthenight.Night came and it was time forsleep.The pig went into the straw heap(稻草堆)and lay comfortably.A longtime passed,but the horse was stillstanding there and did not move.Thepig asked the horse why he did not go tosleep."Standing like this is the begin-ning ofsleeping,"answered the horse. 相似文献
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《今日中学生》2014,(9)
正1.Any fool can count the seeds in an apple.Only God can count all the apples in one seed.2.Happy families are all alike;every unhappy family is unhappy in its own way.3.Memories are the key not to the past,but to the future.4.Sometimes in the dark you see what you want to see.5.There is a great difference between 相似文献
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《重庆大学学报(英文版)》2014,(2)
正Scope and Policy The Journal of Chongqing University-English Edition(JCQU-E)is a peerreviewed journal publishing research articles in multiple disciplines of science and technology,covering civil and environmental engineering,chemical engineering,biotechnology,mechanical and electrical engineering,computer and data processing,mining,metallurgy,materials science,and interdisciplines thereof. 相似文献