نتایج جستجو برای: sphere

تعداد نتایج: 40881  

2012
Andrei Andryieuski Sangwoo Ha Andrey A. Sukhorukov Yuri S. Kivshar Andrei V. Lavrinenko

Andrei Andryieuski,1,* Sangwoo Ha,2 Andrey A. Sukhorukov,2 Yuri S. Kivshar,2 and Andrei V. Lavrinenko1 1DTU Fotonik–Department of Photonics Engineering, Technical University of Denmark, Ørsteds pl. 343, DK-2800 Kongens Lyngby, Denmark 2Nonlinear Physics Centre and Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), Research School of Physics and Engineering, Australian National ...

2010
Minhyong Kim

The exposition here follows the lecture delivered at the summer school, and hence, contains neither precision, breadth of comprehension, nor depth of insight. The goal rather is the curious one of providing a loose introduction to the excellent introductions that already exist, together with scattered parenthetical commentary. The inadequate nature of the exposition is certainly worst in the th...

1997
John H Morrow Jr

IN 1883, one year before the invention of the dirigible, Albert Robida’s book War in the Twentieth Century envisaged a sudden, crushing air strike, while Ivan S. Bloch’s 1898 treatise on warfare expected bombardment from airships in the near future. With the evolu­ tion of airships—in particular, the flights of Count Ferdinand von Zeppelin’s dirigibles toward the end of the first decade of the ...

2012
PIERRE BERTHELOT Francesco Baldassarri

Let k be a perfect field of characteristic p > 0, Wn = Wn(k). For separated k-schemes of finite type, we explain how rigid cohomology with compact supports can be computed as the cohomology of certain de Rham-Witt complexes with coefficients. This result generalizes the classical comparison theorem of Bloch-Illusie for proper and smooth schemes. In the proof, the key step is an extension of the...

2017
Songxiao Li Stevo Stević

The boundedness of the weighted differentiation composition operator from the logarithmic Bloch space to the weighted-type space is characterized in terms of the sequence (zn)n∈N0 . An asymptotic estimate of the essential norm of the operator is also given in terms of the sequence, which gives a characterization for the compactness of the operator.

2001
LI GUO

This paper concerns the Tamagawa number conjecture of Bloch and Kato [B-K] for adjoint motives of modular forms of weight k ≥ 2. The conjecture relates the value at 0 of the associated L-function to arithmetic invariants of the motive. We prove that it holds up to powers of certain “bad primes.” The strategy for achieving this is essentially due to Wiles [Wi], as completed with Taylor in [T-W]....

Journal: :فصلنامه علوم اجتماعی 0
هادی خانیکی استادیار دانشگاه علامه طباطبائی

0

Journal: :iranian journal of science and technology (sciences) 2008
m. kazaz

v. dannon showed that spherical curves in e4 can be given by frenet-like equations, and he thengave an integral characterization for spherical curves in e4 . in this paper, lorentzian spherical timelike andspacelike curves in the space time 41 r are shown to be given by frenet-like equations of timelike andspacelike curves in the euclidean space e3 and the minkowski 3-space 31 r . thus, finding...

Journal: :journal of nanostructures 2016
m. pirhadi s. feshki m. marandi r. davarnejad

dye sensitized solar cell was fabricated from a double layer photoanode. first, tio2 nanoparticles  were synthesized by hydrothermal method. these tio2 nps were deposited on fto glasses by electrophoretic deposition  method in applied voltage of 5 v and epd time of 2.5-10 min. then tio2 hollow spheres (hss) were synthesized by sacrificed template method with carbon spheres as template and ttip ...

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