نتایج جستجو برای: edm

تعداد نتایج: 2468  

1997
Tarek Ibrahim Pran Nath

An analysis of the neutron EDM and of the electron EDM in minimal N=1 supergravity unification with two CP violating phases is given. For the neutron the analysis includes the complete one loop gluino, chargino, and neutralino exchange diagrams for the electric dipole and the chromoelectric dipole operators, and also the contribution of the purely gluonic dimension six operator. It is shown tha...

2012
G. Kibria B. B. Pradhan B. Bhattacharyya

In micro-electrical discharge machining (micro-EDM), dielectric plays a significant role during the machining process as different types of dielectrics have different chemical compositions, cooling rates and dielectric strengths. For this, dissimilar process responses are accounted when machining in EDM at micron level. The present paper investigates micro-EDM characteristics such as material r...

2016
Judy Kay

There has been an explosion of digital learning sensors. Some are in bespoke learning applications. But many more are in the digital tools people use in every aspect of their lives. This paper introduces a user-centred view of EDM for lifelong, life-wide learning. That includes formal education, but goes beyond it to the complex, multi-faceted and ill-defined learning in our broader lives. This...

2012
Rina Chakravorty Susanta Kumar Gauri Shankar Chakraborty

Electrical discharge machining (EDM) is one of the most extensively used non-traditional machining processes having multiple performance characteristics, some of which are usually correlated. So, ideally, use of principal component analysis (PCA)-based approaches that take into account the possible correlations between the responses are suitable for optimization of EDM process. A recently repor...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده مهندسی مکانیک 1391

این پژوهش یک مدل حرارتی-فیزیکی از فرآیند ماشینکاری تخلیه ی الکتریکی (edm) را توسط روش المان محدود (fem) توسعه می دهد. آنالیز عددی فرآیند edm تک جرقه در حالت دوبعدی و متقارن محوری انجام شده است. آنالیز عددی با در نظر گرفتن فرضیات واقع گرانه ای مثل شار حرارتی با توزیع گوسین، معادله ی شعاع جرقه ی وابسته به زمان روشنی پالس و جریان تخلیه، گرمای نهان ذوب وغیره برای پیش گویی شکل حفره و نرخ برداشت مواد...

2015
C.J. Finno K.E. Estell S. Katzman L. Winfield A. Rendahl J. Textor D.L. Bannasch B. Puschner

BACKGROUND Equine neuroaxonal dystrophy/equine degenerative myeloencephalopathy (NAD/EDM) is a neurodegenerative disorder affecting genetically predisposed foals maintained on α-tocopherol (α-TP)-deficient diet. OBJECTIVE Intramuscular α-TP and selenium (Se) administration at 4 days of age would have no significant effect on serum or cerebrospinal fluid (CSF) α-TP in healthy foals. Serum and ...

2006
A. Y. Alfakih Henry Wolkowicz

In this paper, we use known bounds on the smallest eigenvalue of a symmetric matrix and Schoenberg’s Theorem to provide both necessary as well as sufficient trace inequalities that guarantee a matrix D is a Euclidean distance matrix, EDM. We also provide necessary and sufficient trace inequalities that guarantee a matrix D is an EDM generated by a regular figure.

Journal: :international journal of advanced design and manufacturing technology 0
seyfollah saedodin mohsen torabi hadi eskandar

whereas in electrical discharge machining (edm) the heat flux entering the workpiece is extremely high, the fourier heat conduction model may fails. this article reports on determination of temperature distribution in the workpiece due to edm using non-fourier heat conduction model. equations are solved by deriving the numerical solution. the temperature layers and profiles of sample calculatio...

Journal: :The journal of sexual medicine 2012
Christopher B Harte Cindy M Meston

INTRODUCTION Oral erectile dysfunction medications (EDMs) have become an increasingly popular drug of abuse among young men without a medical indication. In addition to being associated with increased sexual risk behaviors, recreational EDM use may adversely impact psychological aspects of sexual function, primarily by affecting one's confidence in pharmacologically unaided erectile ability. To...

2007
Boris Ravaine Misha Kozlov

Symmetries of the Universe have always provided theoreticians with a powerful tool in their efforts to understand and unify physics laws. Three of them have shaped physics over the last 50 years: parity (P ), charge conjugation (C), and time-reversal (T ). Today, T -violation remains the most mysterious symmetry violation as it is not understood properly and as much stronger T -violating mechan...

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