共查询到20条相似文献，搜索用时 15 毫秒
1.
Zhang rongfa 《伊犁师范学院学报》1997,(Z1)
本文研究捕会一被会会三种群周期模型,得到了一组易于检验高分条件,在此条件下,保证系统正周期群的全局渐近稳定性,同时也保证了该糸统是一致持续生存的。 相似文献
2.
《Chinese Education & Society》2013,46(3):112-126
Born in what is now known as Shantung Province's Tsou hsien, Mencius (c. 390-305 B.C.), whose family name was Meng and his name K'o, was a student of a disciple of Tzu Ssu who was Confucius' grandson. Mencius was a trumpeter for restoring the slave system and was long revered by the reactionary ruling classes as the "No. 2 sage," second only to Confucius, because he had inherited and made contributions in developing the reactionary theories of the Confucian school. The so-called "policy of benevolence," which was incisively criticized by Chairman Mao in On the People's Democratic Dictatorship, was a reactionary slogan which Mencius had done his utmost to advertise in his effort to restore the slave system. By criticizing his reactionary words and deeds and. analyzing the class content of his political line, we can better understand how the overthrown reactionary classes worked overtime to revive the old system and how they viciously attacked the new system. Through such criticism and analysis, we can also gain a deeper understanding of the class struggle under the dictatorship of the proletariat and see clearly the counterrevolutionary nature of Lin Piao and other political swindlers. 相似文献
3.
Alexander M. Dushkin 《Journal of Jewish Education》2013,79(2):76-80
This article analyzes the career commitments and retention patterns among graduates of the DeLeT program (Day School Leadership Through Teaching) who were prepared for day-school teaching at Brandeis University and Hebrew Union College-Jewish Institute of Religion. Employing t-tests to analyze survey responses, we identify factors that shape and support teachers' career commitments to Jewish day schools. Our findings suggest that those who stay in Jewish day school teaching are likely to do so because of more commitment to the Jewish community, greater perception of effective teacher preparation experience, and better school support in comparison to those who leave teaching in this setting. These findings are consistent with a multi-layered understanding of teachers' lives and career commitments, which is illustrated in the interaction between person, program, and setting. 相似文献
4.
In the application of active magnetic bearings(AMB),one of the key problems to be solved is the safety and stabiltiy in the sense of rotor dynamics,The project related to the present paper deals with the method for analyzing bearing rotor systems with high rotation speed and specially supported by active magnetic bearings,and studies its rotor dynamics performance,including calculation of the natural frequencies with their distribution characteristics,and the critical speeds of the system.one of the targets of this project is to formulate a theory and method valid for the analysis of the dynamic performance of the active magntic bearing-rotor systemby combining the traditional theory and method of rotor dynamics with the analytical theory and design method based on modern control theory of the AMB system. 相似文献
5.
PDM（product data management)is one kind of techniques based on software and database,which integrates information and process related to products.But it is not enough to perform the complication of PDM in enterprises.Then the mechanism to harmonize all kinds of information and process in needed.The paper introduces a novel approach to implement the intelligent monitor of PDM based on MAS(multi-0agent system).It carries out the management of information and process by MC( monitor Center).The paper first puts forward the architecture of the whole system,then defines the structure of MC and its interoperation mode. 相似文献
6.
Frost's poems enjoy great popularity among people worldwide. He has written a large number of poems with rich rhyme throughout his career. Frost uses metre and sound devices to reinforce the theme, giving a sense of beauty, and modifying the crude reality. People love his poems, and admire him for his clever using of audio system. 相似文献
7.
《欧洲教育》2013,45(2):45-61
The school is one of the largest service enterprises of the state and must have a well-functioning administrative organization. Teachers, the real representatives of the organization of teaching, must respect this. Without the efforts of the administration, the prerequisites and general framework of instruction, namely, premises, financial resources, and personnel, would be largely inaccessible, and the school and its day-today operations would come to a halt. But if we formulate an antinomy between these two areas of responsibility in defining our topic, this happens because disruptions occur in the direct functioning of the educational process which are demonstrably attributable to encroachments of the administrative organization on the organization of teaching. A few examples will illustrate this vividly. 相似文献
8.
《Chinese Education & Society》2013,46(1-2):25-38
What kind of a person is Confucius who has for more than 2,000 years been honored all the time by the ruling classes as the "sage"? 相似文献
9.
Thefunctionofcomputeraidedprocessplanning(CAPP)istotransformtheproductdesigninformationintotheinstructionsoftheproductmanufactureinthelightofthestatusoftheenterpriseresources .CAPPisthebridgebetweentheproductCADandtheCAM ,anditlinksproductdatamanagement (PDM )andERP .WiththewideapplicationofCADandthespreadofthecomputerintegratedmanufacturing (CIM )technologyinmanyenterprises ,asakey ,CAPPisnowrequiredtobemoreadaptable,feasibleandintegrated .Thelimitedfunctionandpart processoriented… 相似文献
10.
Andrew M. Cavallo 《Science & Education》2012,21(10):1595-1599
In this short paper we discuss Mario Bunge's definition of system boundary. It is quickly discovered that Bunge's definition of system and system boundary are both deficient. We thus propose new definitions, which (hopefully) improve the situation. Our definition of system boundary works off the same intuition behind Bunge's. 相似文献
11.
In this paper,a dynamic model on a rigid rotor-sliding bearing system with a SFD is established.The stability and bifurcation behaviors of the system are studied,on The basis of the differential equations of fluid momentum and mass continuity,the distribution pressure function is derived by taking oil film inertia force into consideration.Damping force, clearance excitation force,interference force of different frequencies and static load are also considered in the model,Finally,the governing equations of the stability and bifurcation behaviors of the system are solved by Floquet theory,Simulation of dynamic model shows that the rigid rotor-sliding bearing system can maintain stability and exhibit a Hopt bifurcation phenomenon in a certain range. 相似文献
12.
海外的生活是不是对你来说既神秘又新鲜,好奇的你是否想领略一下海外生活的一点一滴呢?从这一期起,我社驻加拿大特约作者将向你们一一展示海外学习、生活的真实图景!也欢迎大家鸿雁传书,与我们的特约作者亲自交流内心的感受吧! 相似文献
13.
Ram Bahal Monika Wason Sudeep 《美中教育评论》2006,3(5):58-65
Looking the progress of cyber based information system in railways, air ways, commercial institutions, industries, medical institutions etc. a pertinent questions is raised that why not in agriculture？ It is however, realized that due to short supply of extension workers, their lower educational level and least per capita extension expenditure, the demand based extension services are not been provided to different kinds of clients. Due to diversification of agriculture, the needs are varying from farmer to farmer and area to area. Farmers need different calculated feasible, viable and economical practices to follow for better output and income. The socio-economic and agro-climatic situation of farmers in the same village is also different. Therefore, demand based extension services cannot be possible through our conventional system of extension with the available human and financial resources. So far, extension agents give the information what ever they know and not that what the farmers need. It is therefore suggested to develop cyber based extension system in our country, which provides all required information about all possible questions of the farmers. Keeping this point in view, an effort was made to develop an Expert System of Extension at Division of Agricultural Extension, Indian Agricultural Research Institute New Dlehi-12. The system was built in two phases. In the first phase the agricultural information of the selected crops have been collected from the authentic sources and stored in the form of a database. In the second phase, the decision rules were formulated and coded in the expert system. Both these phases are finally combined to form cyber-based expert system, which is hosted on the Internet for the use of the farmers and general public. This is a best combination of man and machine for efficiency and need to based on dissemination at a time to all farmers. 相似文献
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15.
ＴｅｘｔａｎｄＶｏｉｃｅＩｎｔｅｇｒａｔｅｄＰａｇｉｎｇＳｙｓｔｅｍＳｈｅｎＬｉａｎｆｅｎｇ（沈连丰）ＷｅｉＨｕｉｈａｉ（魏慧海）ＷａｎＳｈａｎ（万山）（ＮａｔｉｏｎａｌＣｏｍｍｕｎｉｃａｔｉｏｎｓＲｅｓｅａｒｃｈＬａｂｏｒａｔｏｒｙ，Ｄｅｐａｒｔｍ... 相似文献
16.
Reid A. Bryson 《The Journal of environmental education》2013,44(2):4-5
ABSTRACT:This paper synthesizes what the empirical literature reports regarding what can best be learned outdoors. The review suggests that the outdoors may be effective in stimulating critical thinking, increasing problem-solving skills, and developing concepts rather than rote memory. Little evidence was found to support claims for the superiority of teaching language development in the outdoors. The empirical literature offers qualified support to those who advocate the value of outdoor education in facilitating cognitive development in the areas of environmental education and general science, but the evidence must be regarded as tenuous and uncertain. Much of the research which has been reported falls short of the scientific standards necessary for it to make meaningful contributions to this debate. 相似文献
17.
《开放教育研究》2002,(3)
In modern system of distance education, most management subsystems generally adopt WebBrowser/Web Server/Data Server or B/S/D structure. In this structure, web server is in the centerof this three - level structure, having dual tasks: 1) expression service: to save HTML silence di- 相似文献
18.
lIntroductionTheflexiblemanulhcturingtechnology(FMT)originatedinUSAinthemid1960s',sincethenithasspreadtomanyothercountries.Duringthelastfewyears,theflexiblemanufacturingsystem(FMS)hasdemonstratednotonlypopularintheindustrializedcountries,butalsofindsitsap… 相似文献
19.
集成创新的Office System家族 在日常应用软件中,MS Office办公套件是大家最为熟悉的软件之一.MS Of fice中包括的Word,Excel,PowerPoint,Outlook已被广泛应用.为了增强MS Office软件给用户带来的价值,提升MS Office集成创新的能力,2003年,微软整合Office套件和一系列.NET企业级服务器软件,推出Office System产品家族. 相似文献
20.
利用System View对增量调制通信系统的数学模型进行了实验仿真,通过对比理想信道和衰落信道构成的两种不同通信系统的仿真结果,分析了产生误差的原因,为通信类课程的实践教学提供了参考。 相似文献