نتایج جستجو برای: hilbert cast

تعداد نتایج: 50363  

مقدمه: تحقیقات در زمینه لحیم‏کاری معمولی آلیاژهای بیس نشان می‏دهد که لحیم‏کاری این نوع آلیاژها غیرقابل پیش بینی است و از حساسیت تکنیکی بسیار بالایی برخوردار است. هدف از این مطالعه بررسی روش Cast to (کستینگ برای بار دوم) و مقایسه استحکام خمشی آن با روش لحیم‏کاری معمولی بود. مواد و روش‏ها: در این مطالعه آزمایشگاهی تجربی، تعداد 30 نمونه الگوی فلزی استوانه ای به طول 60 میلیمتر و قطر 3 میلیمتر از آ...

M. Sheikholeslami, S. M. A Boutorabi,

In this research the relationship between graphitization ability and the carbon equivalent (CE %) of a cast iron have been investigated. The first series of moulds were cast at CE of 3.2% and pouring temperature of 1350°C. The other moulds were cast at different CE% with varying Si content. The graphitization ability( c ) was calculated using the thermodynamics aspects of graphitization and CE%...

We introduce variational inequality problems on Hilbert $C^*$-modules and we prove several existence results for variational inequalities defined on closed convex sets. Then relation between variational inequalities, $C^*$-valued metric projection and fixed point theory  on  Hilbert $C^*$-modules is studied.

B. Yang Th. M. Rassias

In this paper, we provide a short account of the study of Hilbert-typeinequalities during the past almost 100 years by introducing multi-parametersand using the method of weight coefficients. A basic theorem of Hilbert-typeinequalities with the homogeneous kernel of −−degree and parameters is proved.

In this paper we introduce and study Besselian $g$-frames. We show that the kernel of associated synthesis operator for a Besselian $g$-frame is finite dimensional. We also introduce $alpha$-dual of a $g$-frame and we get some results when we use the Hilbert-Schmidt norm for the members of a $g$-frame in a finite dimensional Hilbert space.

In this paper, we considered composition operators on weighted Hilbert spaces of analytic functions and  observed that a formula for the  essential norm, gives a Hilbert-Schmidt characterization and characterizes the membership in Schatten-class for these operators. Also, closed range composition operators  are investigated.

Journal: :journal of algebra and related topics 2013
a. sahleh l. najarpisheh

let $a$ be a $c^*$-algebra and $e$ be a left hilbert $a$-module. in this paper we define a product on $e$ that making it into a banach algebra and show that under the certain conditions $e$  is arens regular. we also study the relationship between derivations of $a$ and $e$.

1937
R. B. Lal

To the Editor, The Indian Medical Gazette StR,?I have read with considerable interest your leading article on epidemic dropsy in the October issue of the Gazette. I wish to draw your attention to one or two points in connection with your reference to our work on the subject. While offering criticism on the deductions made by us from our experiments you make no mention of the fact that albumin w...

Journal: :iranian journal of biotechnology 2006
mohammad reza nassiry mojtaba tahmoorespour ali javadmanesh mahdi soltani saheb foroutani far

association of genetic polymorphism in the calpastatin (cast) gene with average daily gain was examined in iranian purebred kurdi sheep. the genotypes for cast were determined by the pcr-sscp method. blood samples were collected from 84 purebred kurdi sheep belonging to the kurdi breeding station located in the khorasan province, north-east of iran. extraction of genomic dna was based on the gu...

2001
Arthur L. LIESTMAN

We consider the broadcasting problem for one-dimensional grid graphs with a given neighborhood template. There are two different models that have been considered-shouting (a node informs all of its neighbors in one step) and whispering (a node informs a single neighbor in one step). Let a(t) (respectively a(t)) denote the maximum number of nodes that can be reached in t steps by shouting (respe...

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