نتایج جستجو برای: bi 2223ag super conductor

تعداد نتایج: 103007  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ریاضی 1394

در این پایان نامه ابتدا روش های لانکسوز و روش های تکراری را مطرح می کنیم و سپس روش های گرادیان مزدوج و مانده مزدوج را با جهتهای جستجو مطرح کرده و تعمیم می دهیم روش های bi-conjugat gradiant و bi-conjugat residual را مطرح کرده و نتایج عددی حاصل را بیان کرده و نتیجه میگیریم که bi-conjugat residual بهتر از bi-conjugat gradiant می باشند.

Journal: :Proceedings of the National Academy of Sciences 2015

Journal: :Energies 2021

Usage of phase change materials’ (PCMs) latent heat has been investigated as a promising method for thermal energy storage applications. However, one the most common disadvantages using (LHTES) is low conductivity PCMs. This issue affects rate (charging/discharging) in Many researchers have proposed different methods to cope with this problem storage. In paper, tubular pipe super conductor incr...

2016
Daniel F. Weyer Jeffrey E. Shield

Power District (NPPD) implemented an inspection program to determine the extent of condition for this type of widely used conductor. Other companies which have had related issues with similar types of corrosion have simply replaced their existing insignificant miles of conductor; however NPPD transmission system includes over 2000 miles of this particular conductor. Throughout 2012, many other ...

2008
S. L. Sobolev

In this paper we present integral conductor inequalities connecting the Lorentz p, q-(quasi)norm of a gradient of a function to a one-dimensional integral of the p, q-capacitance of the conductor between two level surfaces of the same function. These inequalities generalize an inequality obtained by the second author in the case of the Sobolev norm. Such conductor inequalities lead to necessary...

2009
Takaaki Isono

For testing large-scale cable-in-conduit conductors, several practical experimental techniques have been developed to specifically address the issues of conductor stability. The following described techniques enable experimentalists to quantify the effects and thus provide useful tools ro improve the conductor performapce in magnet applications. In this paper, we present two experimental techni...

2003
Peter Samuelsson

We propose a spin-independent scheme to generate and detect two-particle entanglement in a mesoscopic normal-superconductor system. A superconductor, weakly coupled to the normal conductor, generates an orbitally entangled state by injecting pairs of electrons into different leads of the normal conductor. The entanglement is detected via violation of a Bell inequality, formulated in terms of ze...

2014
Oldřich Coufal

J. C. Maxwell derived formulae for the calculation of current density and current in a cylindrical conductor supplied with variable current. In the 1950s K. Simonyi published a method for calculating current density in a cylindrical conductor made up of two conductors, cylindrical and tubular, of different resistivities. The present paper proves that Simonyi’s result is incorrect. The main atte...

2010
Kirk T. McDonald Joseph Henry

In 1914, Blondel [1] performed an experiment in which a solenoidal coil was coaxial with a region of static magnetic field, such that the magnetic field on the conductor of the coil was negligible. The conductor of the coil T (D in the right figure) could be wound onto an auxiliary drum T ′ (D1), such that the magnetic flux through the coil T (D) was time dependent. What was the reading of the ...

2004
H. Nakane Y. Sohara

A method to accurately estimate the thickness of a paramagnetic film conductor from the difference in the complex impedance between a circular solenoid coil equipped with a conductor and a similar one without a conductor has been studied. As for aluminum films of a thickness of 15 to 60 um and a frequency range of 10 to 500 kHz, the discrepancy between the measured values using this method and ...

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