نتایج جستجو برای: فیبرهای آوران lll

تعداد نتایج: 1708  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پایه 1391

تحقیق حاضر شامل سه فصل می باشد: در فصل اول مروری بر روش های میکرواستخراج با حلال با تأکید بیشتر بر روی روش میکرواستخراج با فیبرهای توخالی انجام شده است. در این بخش حالتهای مختلف به همراه مزایا و معایب روش فوق مورد بررسی قرار گرفته است. همچنین کلیه کارهایی که تاکنون با استفاده از روش میکرواستخراج با فیبرهای توخالی انجام شده معرفی گردیده است. فصل دوم شامل چهار بخش مجزا می باشد. در این فصل روشهای...

2010
Enis Tuncer

In this review, the dielectric permittivity of dielectric mixtures is discussed in view of the spectral density representation method. A distinct representation is derived for predicting the dielectric properties, permittivities ε, of mixtures. The presentation of the dielectric properties is based on a scaled permittivity approach, ξ = (εe − εm)(εi − εm) −1, where the subscripts e, m and i den...

Journal: :Applied sciences 2022

Introduction: The purpose of this systematic review was to critically analyze the recent literature present a guideline for management neurophysiological changes after implant placement and oral maxillofacial surgical procedures. Materials methods: Three electronic databases manual search approaches were used identify relevant articles on changes. Only studies with randomized controlled study d...

2001
F. Bagarello

In this paper we prove that any multi-resolution analysis of L2(R) produces, for some values of the filling factor, a single-electron wave function of the lowest Landau level (LLL) which, together with its (magnetic) translated, gives rise to an orthonormal set in the LLL. We also give the inverse construction. Moreover, we extend this procedure to the higher Landau levels and we discuss the an...

1998
Wilberd van der Kallen

We consider the complexity of a Lenstra Lenstra Lovász lattice reduction algorithm ([LLL]) in which the vectors are allowed to be linearly dependent and in which one also asks for the matrix of the transformation from the given generators to the reduced basis. The main problem will be to show that the entries of the transformation matrix remain bounded through the algorithm, with a reasonable b...

2002
U. Heinzmann

(6 x ~}R30°-Xe/Pd(lil) and the dilute phase of Xe/Pd(li I) were investigated with spin-polarized low-energy electron diffraction (SPLEED). In the experiment spin-polarized electrons from a GaAs source were scattered and the spin-dependent intensities were measured. Comparative calculations were carried out by means of a relativistic LEED program. The structure determination of (6 x fi)R30”-Xe/P...

2000
P. R. Fischer D. E. Gragson

The potential dependence in the surlace second hannonic response from hydrogen terminated n-Si(111) i(l l and oxidized n-Si(1l1) ll surfaces has been examined in aqueous NH4F and H2S04 4 solutions. The relative phase of the nonlinear response as measured by rotational anisotropy experiments is found to be highly sensitive to the presence of the oxide and the field applied across Si(ll I)/mdde/e...

2010
Alexander May

25 years ago, Lenstra, Lenstra and Lovász presented their celebrated LLL lattice reduction algorithm. Among the various applications of the LLL algorithm is a method due to Coppersmith for finding small roots of polynomial equations. We give a survey of the applications of this root finding method to the problem of inverting the RSA function and the factorization problem. As we will see, most o...

2007
Alexander May

25 years ago, Lenstra, Lenstra and Lovasz presented their celebrated LLL lattice reduction algorithm. Among the various applications of the LLL algorithm is a method due to Coppersmith for finding small roots of polynomial equations. We give a survey of the applications of this root finding method to the problem of inverting the RSA function and the factorization problem. As we will see, most o...

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