نتایج جستجو برای: griffings method 1
تعداد نتایج: 4076496 فیلتر نتایج به سال:
A fundamental problem in formalizing our intuitive ideas about information is to provide a quantitative notion of “meaningful” or “relevant” information. It is argued in this paper that information theory, in particular lossy source compression, provides a natural quantitative approach to the question of “relevant information.” Specifically, the authors formulate a variational principle for the...
since the discovery of macc as a major metabolite of both endogenous and exogenously applied acc, it has become evident that the formation of macc from acc can act to regulate ethylene production in certain tissues. hence, it was suggested that macc could serve as an indicator of water-stress history in plant tissues. the accurate quantification of macc in plant tissues is essential for the und...
in new management approaches, in the organizations with inflexible structure, existing of red tapes and interruptions caused by limitations and also non-compliance with environmental changes, create demotivation among staff. with regard to the influence of job motivational potential and its relationship to the type of organizational structure( enabling and dissuasive), the goal of this research...
this study investigated how group formation method, namely student-selected vs. teacher-assigned, influences the results of the community model of teaching creative writing; i.e., group dynamics and group outcome (the quality of performance). the study adopted an experimental comparison group and microgenetic research design to observe the change process over a relatively short period of time. ...
In this paper, we give a short review of the moving mesh methods based upon moving mesh PDEs, including a brief description of a new moving collocation method. Then we carry out a numerical study of a class of PDEs describing blow-up of solutions of combustion problems. The study demonstrates the usefulness of these methods as a tool for the analyst. Speciically, we use the numerical method as ...
در سال های اخیر، تقاضای استفاده از تئوری خطی ویسکوالاستیسیته بیشتر شده است. با افزایش استفاده از کامپوزیت های پیشرفته در صنایع هوایی و همچنین استفاده روزافزون از مواد پلیمری، اهمیت روش های دقیق طراحی و تحلیل چنین ساختارهایی بیشتر شده است. این مواد جدید از خودشان رفتارهای مکانیکی ارائه می دهند که با تئوری های الاستیسیته و ویسکوزیته، نمی توان آن ها را توصیف کرد. این مواد، خواص ویسکوالاستیک دارند....
We propose a new symmetry reduction method for (1+1)-dimensional differential-difference equations (DDEs), namely, the λ -symmetry of solving ordinary differential is generalized to DDEs. Order-reduction processes are consequence invariance given DDE under vector fields class. These satisfy prolongation formula. A simple example order-reduction provided illustrate application.
abstract: in this thesis, we focus to class of convex optimization problem whose objective function is given as a linear function and a convex function of a linear transformation of the decision variables and whose feasible region is a polytope. we show that there exists an optimal solution to this class of problems on a face of the constraint polytope of feasible region. based on this, we dev...
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