نتایج جستجو برای: shaped set
تعداد نتایج: 726740 فیلتر نتایج به سال:
در این مطالعه نهشته های الیگوسن زون بینالود در سه برش باغشن گچ، دامنجان و طاغان واقع در شمال نیشابور مورد مطالعه قرار گرفت. مطالعات بافتی و ساختارهای رسوبی این نهشته ها منجر به شناسایی 3 مجموعه رخساره سنگی دانه درشت (gmg,gcm,gmm,gh,gp,gt) ، دانه متوسط (sh,sp,st,sr,sm,sl) و دانه ریز(fl,fm) و 5 عنصر ساختاری (sb,lv,ff ch,la) شد. مطالعه اثار فسیلی این نهشته ها نیز منجر به شناسایی اثار فسیلی , areni...
in this paper, we introduce λκ−closed sets and study its properties in generalized topological spaces.
We present a systematic derivation of the extended Jefferys’ orbit for rigid ellipsoidal and V-shaped polymer molecules in linear incompressible viscous flows using a Lagrange multiplier’s method based on a constraining force argument [5]. It reproduces the well-known Jefferys’ orbit for rotating ellipsoids [12]. The method is simple and applicable to any rigid body immersed in a linear flow fi...
In this paper we consider the entry and exit of firms in a Ramsey model with capital and an endogenous labour supply. At the firm level, there is a fixed cost combined with increasing marginal cost, which gives a standard U-shaped cost curve with optimal firm size. The costs of entry (exit) are quadratic in the flow of new firms. The number of firms becomes a second state variable and the entry...
Nowadays, the growth of virtual environments such as virtual organizations, social networks, and ubiquitous computing, has led to the adoption of trust concept. One of the methods of making trust in such environments is to use a long-term relationship with a trusted partner. The main problem of this kind of trust, which is based on personal experiences, is its limited domain. Moreover, both par...
A double-loop digraph, G(N ; s1; s2), has the set of vertices V = ZN and the adjacencies are de0ned by i → i + sk (modN ), k = 1; 2 for any i ∈ V . Double commutative-step digraph generalizes the double-loop. A double commutative-step digraph can be represented by a L-shaped tile, which periodically tessellates the plane. This geometrical approach has been used in several works to optimize some...
We consider an optimization version of the image segmentation problem, in which we are given a grid graph with weights on the grid cells. We are interested in finding the maximum weight subgraph such that the subgraph can be decomposed into two ”star-shaped” images. We show that this problem can be reduced to the problem of finding a maximum-weight closed set in an appropriately defined directe...
In this paper, we study the Chebyshev centres of bounded subsets of normed spaces and obtain a norm inequality for relative centres. In particular, we prove that if T is a remotal subset of an inner product space H, and F is a star-shaped set at a relative Chebyshev centre c of T with respect to F, then llx - qT (x)1I2 2 Ilx-cll2 + Ilc-qT (c) 112 x E F, where qT : F + T is any choice functi...
The Gemini Planet Imager is a dedicated facility for directly imaging and spectroscopically characterizing extrasolar planets. It combines a very high-order adaptive optics system, a diffraction-suppressing coronagraph, and an integral field spectrograph with low spectral resolution but high spatial resolution. Every aspect of the Gemini Planet Imager has been tuned for maximum sensitivity to f...
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