نتایج جستجو برای: lifting magnet
تعداد نتایج: 31425 فیلتر نتایج به سال:
The lifting scheme (LS) based wavelet transform [1] is the decorrelation stage employed in JPEG2000 [2], where the 9/7 and the 5/3 wavelet filters are used for lossy and lossless compression respectively. It is known that the 5/3 wavelet filters can be implemented with a simple multiplierless two steps LS, whereas the 9/7 wavelet filters require non rational multiplications with four lifting st...
Let $R$ be a right artinian ring or a perfect commutativering. Let $M$ be a noncosingular self-generator $sum$-liftingmodule. Then $M$ has a direct decomposition $M=oplus_{iin I} M_i$,where each $M_i$ is noetherian quasi-projective and eachendomorphism ring $End(M_i)$ is local.
In this study, an optimization-based approach for simulating the lifting motion of a three dimensional digital human model is presented. Lifting motion is generated by minimizing a performance measure subjected to basic physical and kinematical constraints. Two performance measures are investigated: one is the dynamic effort; the other is the compression and shear forces on the lumbar joint. Th...
The recently proposed Chebyshev-like lifting map for the zeros of a uni-variate polynomial was motivated by its applications to splitting a univariate polynomial p(x) numerically into factors, which is a major step of some most eeective algorithms for approximating polynomial zeros. We complement the Chebyshev-like lifting process by a descending process, decrease the estimated computational co...
Fast-ramping superconducting (SC) accelerator magnets are the subject of R&D efforts by magnet designers at various laboratories. They require modifications of magnet design tools such as the ROXIE program at CERN, i.e. models of dynamic effects in superconductors need to be implemented and validated. In this paper we present the efforts towards a dynamic 2-D simulation of fast-ramping SC magne...
In this note theory and measurements of the effect of the eddy current in the laminations on the magnet field will be presented. The theory assumes a simple solenoid–type magnet with laminated iron core and ignores the end field effect. The measurements were made on the input voltage and current, and the dipole component of the magnetic field in the middle of the magnet bore. The amplitude and ...
This article addresses the empirical and theoretical bases for recommendations regarding lifting technique. Current knowledge regarding the potential mechanisms of injury due during lifting is reviewed. Lifting from postures involving extreme lumbar vertebral flexion, (approximately 60 degrees of lumbar flexion, characterised by absence of electromyographical activity in erector spinae) has the...
Lifting operators play an important role in starting a lattice Boltzmann model from a given initial density. The density, a macroscopic variable, needs to be mapped to the distribution functions, mesoscopic variables, of the lattice Boltzmann model. Several methods proposed as lifting operators have been tested and discussed in the literature. The most famous methods are an analytically found l...
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