نتایج جستجو برای: polarized

تعداد نتایج: 36437  

2016
M. Tahir Q. Y. Zhang U. Schwingenschlögl

We theoretically demonstrate versatile electronic properties of germanene monolayers under circularly, linearly, and elliptically polarized light. We show for the high frequency regime that the edge states can be controlled by tuning the amplitude of the light and by applying a static electric field. For circularly polarized light the band gap in one valley is reduced and in the other enhanced,...

2007
B. Vollmer

Deep observations of 6 cm polarized radio continuum emission of 8 Virgo spiral galaxies are presented. All galaxies show strongly asymmetric distributions of polarized intensity with elongated ridges located in the outer galactic disk. Such features are not found in existing observations of polarized radio continuum emission of field spiral galaxies, where the distribution of 6 cm polarized int...

2012
Tae-Sung Kim Kyung-Ae Park

Wind speeds have long been estimated from C-band VV-polarized SAR data by using the CMOD algorithms such as CMOD4, CMOD5, and CMOD_IFR2. Some SAR data with HH-polarization without any observations in VV-polarization mode should be converted to VV-polarized value in order to use the previous algorithms based on VV-polarized observation. To satisfy the necessity of polarization ratio (PR) for the...

2011
Bicheng Zhang Guoqing Yao Yafei Zhang Juan Gao Bo Yang Zhiguo Rao Jianfei Gao

OBJECTIVES Tumor-associated macrophages have been implicated in promoting tumor growth, progression and metastasis. However, the activated phenotype (M1 or M2) of tumor-associated macrophages remains unknown in solid tumors. Therefore, this study examined the density and prognostic significance of M2-polarized tumor-associated macrophages in lung adenocarcinoma. METHODS Tumor specimens from 6...

1997
V. A. Korotkov W.-D. Nowak

The physics programme for a possible fixed target polarized nucleon-nucleon collision experiment aiming at studying the nucleon spin structure at HERA is described. The experiment named HERA~ N could be realized using an internal polarized gas target in the HERA polarized/unpolarized proton beam. Single spin asymmetry measurements could provide unique information on higher twist contributions. ...

2009
A. Sissakian O. Shevchenko O. Ivanov

The combined analysis of polarized DIS and SIDIS data is performed in NLO QCD. The new parametrization on polarized PDFs is constructed. The uncertainties on PDFs and their first moments are estimated applying the modified Hessian method. The especial attention is paid to the impact of novel SIDIS data on the polarized distributions of light sea and strange quarks. In particular, the important ...

2002
Hideshi Baba Ken Sasaki Tsuneo Uematsu

In the last ten years, the spin-dependent structure functions g1 and g2 of the nucleon have been intensively studied in the polarized deep-inelastic scattering of polarized lepton on polarized nucleon targets. Based on the next-to-leading order (NLO) QCD analysis of the experimental data, the polarized parton distributions inside the nucleon have been extracted. The gluon polarization ∆G is now...

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