نتایج جستجو برای: carpets and rugs
تعداد نتایج: 16827292 فیلتر نتایج به سال:
We study the orthogonal projections of a large class of self-affine carpets, which contains the carpets of Bedford and McMullen as special cases. Our main result is that if Λ is such a carpet, and certain natural irrationality conditions hold, then every orthogonal projection of Λ in a non-principal direction has Hausdorff dimension min(γ, 1), where γ is the Hausdorff dimension of Λ. This gener...
In 1984 Bedford and McMullen independently introduced a family of self-affine sets now known as Bedford-McMullen carpets. Their work stimulated lot research in the areas fractal geometry non-conformal dynamics. this survey article we discuss some aspects carpets, focusing mostly on dimension theory.
background: being exposed to house dust mites intensifies atopic dermatitis. this study has investigated the contamination rate with dermatophagoides mites in patient's residential home with atopic dermatitis. methods: in this cross-sectional study, 40 patients took part with atopic dermatitis (positive or negative for mites by prick dermal test). samples were collected from 3 locations (livin...
Various Persian traditional arts can be understood as different aspects of a unique concept. All of them represent substantial meanings which root in both Islamic and Iranian beliefs. The symbolic language of these arts and the ability of being expressed in various arts let artists to choose proper methods for their work. Rug and architecture are the most important Persian arts and two aspects ...
Handwoven carpets as one of the main export items of Iran during the Qajar period underwent significant integration with the world economy after a series of foreign companies were established. As a result, the design, pattern, dyeing, and even weaving techniques of carpets changed significantly. There have not been enough considerations of all of these effects so far. We investigate the effects...
This study was undertaken to investigate whether certain hazardous chemicals were present as components in new carpets, and if so, in what quantities. The study included analysis of eight new carpet samples that were available for retail in the UK. Some of the carpet samples contained high levels of organotins, in particular TBT (up to 47,500 ppb). One sample contained high levels (1600 ppb) of...
We consider the use of task pool teams in implementation of the master equation on random Sierpinski carpets. Though the basic idea of dynamic storage of the probability density reported earlier applies straightforward to random carpets, the randomized construction breaks up most of the simplifications possible for regular carpets. In addition, parallel implementations show highly irregular com...
Shahsevan nomads live in Northwest of Iran. This tribe was established in Safavid era which is one of the magnificent periods in the Iranian history, as a powerful army by Shah Abbas I to support Ghezelbash soldiers as the strong defending forces of the country to encounter the foreign powers. The tribe was scattered in different historical periods to settle in different areas such as the centr...
Quality assessment in carpet manufacturing is performed by humans who evaluate the appearance retention (AR) grade on carpet samples. To quantify the AR grades objectively, different research based on computer vision have been developed. Among them Local Binary Pattern (LBP) and its variations has shown promising results. Nevertheless, the requirements of quality assessment on a wide range of c...
Carpet is one of the oldest and most ancient traditional arts that in addition to satisfying practical needs, reflects beliefs, myths and other conceptions. These concepts are manifested in the context of rugs, with colorful and beautiful motifs informed by inspiration. In this paper, in addition to identification of animal motifs in the rural rugs of Hamadan, these motifs have been classified ...
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