نتایج جستجو برای: 0196
تعداد نتایج: 119 فیلتر نتایج به سال:
A simple k-colouring of a multigraph G is a decomposition of the edge multiset as the sum of k simple graphs, called ‘colours’. A copy of some fixed graph H in G is called multicoloured if its edges all have distinct colours. Recall that the Turán number ex(n,H) of H is the maximum number of edges in a graph on n vertices not containing a copy of H . We consider a multicolour generalisation exk...
تورم یکی از مهمترین مشکلات مطرح در اقتصاد است که آثار زیان بار بسیاری به همراه دارد. از جمله این آثار زیان بار می توان به عدم تخصیص بهینه منابع، کند شدن روند رشد اقتصاد و ایجاد نااطمینانی از آینده را نام برد. این پژوهش با موضوع «برآورد نرخ بهینه تورم برای اقتصاد ایران با استفاده از کالیبراسیون مدل سیدراسکی» نیز تلاشی در جهت روشن نمودن زیربخشی از موضوع تورم بوده است. هدف از انجام این پژوهش برآور...
The problem of maintaining consistency of replicas of large files has been addressed b y Barbara, Feijoo and Garcia-Molina [l], Barbara and Lipton [2], Fuchs, W u and Abraham [5] and Metzner [6]. Our model is essentially identical to that previously assumed. We present a scheme that provides all capabilities previously obtained as well as being able to detect and identify missing as well as ext...
0196-4399/00 (see frontmatter) © 2010 Elsevier Clinical Microbiology Newsletter 32:5,2010 The following describes our experience in developing an improved medium for the detection of Salmonella and Shigella species in clinical specimens. Initially, we attempted to build on past improvements of enteric plating agars containing the surfactant Niaproof 4, formerly known as Tergitol 4. However, des...
The Clouds and the Earth’s Radiant Energy System (CERES) is part of NASA’s Earth Observing System (EOS). CERES objectives include the following. 1) For climate change analysis, provide a continuation of the Earth Radiation Budget Experiment (ERBE) record of radiative fluxes at the top-of-the-atmosphere (TOA), analyzed using the same techniques as the existing ERBE data. 2) Double the accuracy o...
Radiative transfer theory and modeling assumptions were applied at laboratory and field scales in order to study the link between leaf reflectance and transmittance and canopy hyperspectral data for chlorophyll content estimation. This study was focused on 12 sites of Acer saccharum M. (sugar maple) in the Algoma Region, Canada, where field measurements, laboratory-simulation experiments, and h...
Recent advances in forward modeling of the electromagnetic scattering properties of sea ice are presented. In particular, the principal results include the following: 1) approximate calculations of electromagnetic scattering from multilayer random media with rough interfaces, based on the distorted Born approximation and radiative transfer (RT) theory; 2) comprehensive theory of the effective c...
The main result of this paper is an approximation algorithm for the weighted region optimal path problem. In this problem, a point robot moves in a planar space composed of n triangular regions, each of which is associated with a positive unit weight. The objective is to find, for given source and destination points s and t , a path from s to t with the minimum weighted length. Our algorithm, B...
The Defense Meteorological Satellite Program (DMSP) operational special sensor microwave imager (SSM/I) marked its ten-year anniversary on the launch date of the first SSM/I (F-8), June 19, 1997. After F-8, the DMSP has launched five more SSM/I’s, F-10 (December 1990), F-11 (November 1991), F-12 (August 1994), F-13 (March 1995), and F-14 (April 1997), leaving the last SSM/I for a candidate laun...
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