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71.
批语家们在评价当代作品时,必须依据一定的价值标准,但是,已有的标准却是由以往,而非当代作品所建立起来的,这样,当代批语家就容易对当代作品不理解甚至责备,而社会却将因当代作品中这些遭到不理解甚至责备的因素而建立起新的价值标准。在当代小说中,描写,时间的地位和功能已经完全不同了,描写在向你展示事物的同时又不让你看见事物;时间不再流动,不再是任何事情的标志,瞬间否认了所有的连续性。这些,突出了小说的虚构性和创造性,同时也要求读参与创造。  相似文献   
72.
The purpose of this paper is to derive an upper bound for the rate of blow-up of solutions to the Non-Newton filtration equation where u ≥ 0,p > 1. The blow up rate estimates of positive radial solutions were established by Weissler in [I]for the (1)′ with p=2. In this paper,we get same result for the (1) or (1)′ with p>1. Then,it extent and complment result in [1].  相似文献   
73.
不同文化之间的平等关系是现代进化的主旋律之一,在我们的民主社会中,这构成了一个非常珍贵的观念。文化等级制度已经被消除,所有的文化都有被承认的权利。非殖民化使得这种历史原则不可逆转。然而,“在我们努力建设一个世界性文明的时候,我们必须应付许多新的挑战:比如要求区分不同根源的叛逆性期望……正是持这种期望的各种力量,构成了现代世界紧张局势的根源。”  相似文献   
74.
In these years, semilinear reaction-diffusion systems of the Fujita type ut=Δu+vm (A) vt Δ v + un, (x,t) ∈Ω× (0,T), as well as the related elliptic systems with the region Ω Rn RN, m ,n > 1 were studied by a number of authors, The problems concerning (A) include the existence and multiplicity of global solutions, blowing-up, blow-up rates, and blow-up sets, uniqueness and nonuniqueness, etc. For (B) , there are problems such as existence and nonexistence, uniqueness and nonuniqueness, and so on. On the contrary, it seems that little is known about the result for quasilinear reaction-diffusion systems (non-Newtonian filtration systems) and quasilinear elliptic systems, especially about that of blow-up rate estimates for quasilinear reaction-diffusion systems.  相似文献   
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76.
1  IntroductionIn both academia and industries,Business Process Reengineering( BPR) ( Hammer,1990 )has attracted significantattention to the processes through which work is accomplished orinformation is processed. BPR increases the need for representation schemes of theconcerned processes. There is a body of literature emphasizing process representation tosupport process management including process diagnosis,process design or redesign,process automation,etc.Asthe core of process represen…  相似文献   
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78.
The paper studies four methods about selection of independent variables in multivariate analysis.In general condition,advanced statistical method and bachward statistical method could not obtain the best subset of independent variables.It is possibly affected by the orders of variables of associations amog variables.When multicollinearity is presented in a set of explanatory variables-abnormal state,it is not effective to use the method,although stepwise regression and optimum selecting method of total subsets is widely used.According to this case,the paper proposes a new method which combines deleting variables with ingredient analysis and is used in research and science practically.The important characteristic of this paper is that it gives some examples to support each conclusion.  相似文献   
79.
In this paper we obtain the convergence rate of strongly consistent estimate for coefficients of closed-loop ARMAX system driven by iid random sequence, after adaptively stabilizing the system without introducing external excitation signal. The system is allowed to be unstable and of nonminimum-phase.  相似文献   
80.
巴勒斯早年在英国国家物理实验室工作,后在美国华盛顿特区任英国科学官员。1974—1995年期间在英国能源部、卫生部担任资深职位。现在为专业科学作家,有若干部著作问世,如《关注世界天气》(1991)、《我们见到的气候》(1999)、《气候变化:多学科问题》(2001)。本书于2005年出版,2006年再次印刷。  相似文献   
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