نتایج جستجو برای: convex bearing
تعداد نتایج: 129763 فیلتر نتایج به سال:
In this paper, the concepts of $L$-concave structures, concave $L$-interior operators and concave $L$-neighborhood systems are introduced. It is shown that the category of $L$-concave spaces and the category of concave $L$-interior spaces are isomorphic, and they are both isomorphic to the category of concave $L$-neighborhood systems whenever $L$ is a completely distributive lattice. Also, it i...
Introduction Bar extrusion is a process in which a block of metal (billet) is forced to flow by compression through a tool (die) opening of a smaller crosssectional area than that of the original billet. There are two basic types of bar extrusion: direct and indirect. The most important and common method used is the direct extrusion (Lange 1988). Figure 1 shows the principle of direct bar extru...
This paper discusses the preservation of some stochastic orders between two interdependent series and parallel systems when the survival and distribution functions of all components switch to the exponentiated model. For the series systems, the likelihood ratio, hazard rate, usual, aging faster, aging intensity, convex transform, star, superadditive and dispersive orderings, and for the paralle...
the current study which is an expacto one,has been carried out with the purpose of comparing the bone mineral density(bmd) of menopause women athletes who were professional at weight bearing sports and non-weight bearing sports.the participants were all menopause women athletes of tehran that 20 of them were aimfully put in two groups: the weight bearing sports group(handball and basketball; n=...
[1] This paper examines the ferrous and ferric iron mineralogy of rocks inferred from 246 visible/near-infrared (430–1010 nm) multispectral observations made by the Mars Exploration Rover Spirit’s Pancam on its traverse from its landing site to its second Winter Haven location. Principal component, correspondence analyses, and a sequential maximum angle convex cone technique were used to identi...
Using the fixed point theorem in a cone, the existence and multiplicity of radial convex solutions of singular system of Monge-Amp`{e}re equations are established.
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