نتایج جستجو برای: family space

تعداد نتایج: 900674  

Journal: :Discrete & Computational Geometry 2006
Sergei Ovchinnikov

Let M be a family of subspaces of a metric space X. The space X is M–homogeneous if any isometry between two subspaces in M can be extended to an isometry of X. In the case when M is the family of all subspaces of X, the space X is said to be fully homogeneous. We show that the space L, where L is a fully homogeneous subspace of R, is R– homogeneous where R is the family of subspaces that are p...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی مشهد - دانشکده دندانپزشکی 1394

مقدمه: مطالعات درباره کیفیت زندگی مرتبط با سلامت دهان کودکان مبتلا به اوتیسم محدود است. هدف این مطالعه بررسی درک والدین از کیفیت زندگی مرتبط با سلامت دهان در کودکان اوتیستیک شهر مشهد در سال 93 بود. روش بررسی : 70 کودک مبتلا به اوتیسم و 70 کودک سالم 12-8 ساله و خانواده هایشان وارد مطالعه شدند. ابزار مطالعه پرسشنامه ی pedsql oral health scale بودکه شامل حیطه های درد دندان، درد لثه، خونریزی از ل...

2003
Navid Hassanpour Hamid Jafarkhani

We introduce a new family of Space-Time Trellis Codes which extends the powerful characteristics of SuperOrthogonal Space-Time Trellis Codes to four transmit antennas. We consider a family of quasi-orthogonal space-time block codes as building blocks in our new trellis codes. These codes combine set-partitioning and a super set of quasi-orthogonal space-time block codes in a systematic way to p...

2004
MEGAN M. KERR

We construct a continuous family of new homogeneous Einstein spaces with negative Ricci curvature, obtained by deforming from the quaternionic hyperbolic space of real dimension 12. We give an explicit description of this family, which is made up of Einstein solvmanifolds which share the same algebraic structure (eigenvalue type) as the rank one symmetric space HH. This deformation includes a c...

Journal: :Applied Mathematics and Computation 2013
Alicia Cordero Juan R. Torregrosa Pura Vindel

In this paper, the dynamics of the Chebyshev-Halley family is studied on quadratic polynomials. A singular set, that we call cat set, appears in the parameter space associated to the family. This cat set has interesting similarities with the Mandelbrot set. The parameters space has allowed us to find different elements of the family such that can not converge to any root of the polynomial, sinc...

2014
Na Huang Changfeng Ma

By using the concept of exceptional family, we propose a sufficient condition of a solution to general order complementarity problems (denoted by GOCP) in Banach space, which is weaker than that in Németh, 2010 (Theorem 3.1). Then we study some sufficient conditions for the nonexistence of exceptional family for GOCP in Hilbert space. Moreover, we prove that without exceptional family is a suff...

2014
Gülnur Şaffak Atalay Emin Kasap

abstract: In this paper, we analyzed the problem of consructing a family of surfaces from a given some special Smarandache curves in Euclidean 3-space. Using the Frenet frame of the curve in Euclidean 3-space, we express the family of surfaces as a linear combination of the components of this frame, and derive the necessary and sufficient conditions for coefficents to satisfy both the asymptoti...

Journal: :J. Logic & Analysis 2011
Timur Oikhberg Christian Rosendal

We construct a family of separable Hilbertian operator spaces, such that the relation of complete isomorphism between the subspaces of each member of this family is complete Kσ . We also investigate some interesting properties of completely unconditional bases of the spaces from this family. In the Banach space setting, we construct a space for which the relation of isometry of subspaces is equ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد یزد - دانشکده شیمی 1392

چکیده روغن اسانسی اندام های هوایی دو گونه گیاهی ایران از خانواده نعنائیان (nepeta persica، nepeta asterotricha) به دو روش تقطیر با آب و head space به دست آمد و ترکیبات موجود در آن ها به وسیله کروماتوگرافی گازی همراه با طیف سنجی جرمی جداسازی و شناسایی گردید. در روغن اسانسی حاصل از اندام هوایی n. persica، 18 ترکیب از 22/92% کل اسانس شناسایی شد و محصولات عمده (5/16%) 4a?, 7?, 7a? nepetalactone، ...

Social mobility takes shape of a physical aspect which makes it possible to translate downward mobility in the physical space. Huge inflation and decrease of purchasing power during the recent years have led to downward mobility of middle class in Iran. Various facets of decrease in physical and social space have to be studied. For this purpose, 20 cases who had experienced such situation have ...

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