نتایج جستجو برای: open space and sub
تعداد نتایج: 16970870 فیلتر نتایج به سال:
the space now known as complete erdos space ec was introduced by paul erdos in 1940 as the closed subspace of the hilbert space ?2 consisting of all vectors such that every coordinate is in the convergent sequence {0} ? { 1 n : n ? n}. in a solution to a problem posed by lex g. oversteegen we present simple and useful topological characterizations of ec. as an application we determine the ...
in this thesis our aim is to construct vector field in r3 for which the corresponding one-dimensional maps have certain discontinuities. two kinds of vector fields are considered, the first the lorenz vector field, and the second originally introced here. the latter have chaotic behavior and motivate a class of one-parameter families of maps which have positive lyapunov exponents for an open in...
abstract biometric access control is an automatic system that intelligently provides the access of special actions to predefined individuals. it may use one or more unique features of humans, like fingerprint, iris, gesture, 2d and 3d face images. 2d face image is one of the important features with useful and reliable information for recognition of individuals and systems based on this ...
in this article we review an algebraic de finition of the gyrogroup and a simpli fied version of the gyrovector space with two fundamental examples on the open ball of finite-dimensional euclidean space, which are the einstein and möbius gyrovector spaces. we introduce the structure of gyrovector space and the gyroline on the open convex cone of positive de finite matrices and see its interest...
the study aims to achieve research and testing of hypotheses survey techniques and questionnaires to collect information used. 61 questions in the questionnaire included 15 questions and 46 open questions according to research in the study population, girls and their mothers as the value of different children investment should be. mothers according to the research community benefits from havi...
Mosque is one of the most important Muslims' buildings and one of the best expressions of Islamic community (Ummah). In spite of considerable architectural history of the mosque in Islam and Iran, it seems that there are significant questions about the ideal mosque in Islam. For example "open space" (or courtyard), regarding its undeniable importance according to Islamic tradition (Sirrah & Sun...
The meaning of place and, consequently, the quality of relationship between people and places has become significant due to the current ever rising identity crises and the breakdown of meaning as a result of various phenomena such as globalization. Since the open space has lost its value and since the open space design is not considered in residential complexe...
based on a gender equity perspective and within a pluralistic civil society, women should have equal rights for presence in and use of urban open spaces. despite this, various factors decrease their presence including inappropriate design of space, as well as socio-cultural obstacles. since women’s major place of presence and activity has traditionally been in or near home, neighborhood open sp...
background it is obvious that most of informal learnings of social skills and constructive plays occur in school yards and play-fields where children spend much of their non-official time of teaching. this study aimed to investigate the impact of schools' open space on learning and educational achievement of elementary students in ahvaz, southwest of iran. materials and methods at a cross-...
2-Dimethyl amino ethyl azide (DMAZ) has attracted much attention as a suitable liquid fuel replacement for monomethyl hydrazine (MMH) and unsymmetrical dimethyl hydrazine (UDMH) in propellant systems because, in contrast to these fuels, it is noncarcinogen. In this research, performance, and ignition delay time of DMAZ were studied with common liquid oxidizers such as inhibited red fuming n...
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