نتایج جستجو برای: polarization profile

تعداد نتایج: 285997  

Journal: :Nano letters 2016
Neil A Krueger Aaron L Holsteen Seung-Kyun Kang Christian R Ocier Weijun Zhou Glennys Mensing John A Rogers Mark L Brongersma Paul V Braun

The emergence and growth of transformation optics over the past decade has revitalized interest in how a gradient refractive index (GRIN) can be used to control light propagation. Two-dimensional demonstrations with lithographically defined silicon (Si) have displayed the power of GRIN optics and also represent a promising opportunity for integrating compact optical elements within Si photonic ...

2011
Shen Wang Hiroyuki Arai Yuki Inoue Keizo Cho

A pair of small and low profile dual-polarization antennas has been developed for miniature indoor base station under the MIMO (Multiple-Input Multiple-Output) technology to restrain spatial correlation in LOS (Line-Of-Sight) channel environment. Both of the component antennas operate at 2GHz, it is expected to apply on IMT-2000 or LTE communication systems. The space volume is about W150×H120×...

Journal: :Optics letters 1997
H S Kim S H Yun I K Kwang B Y Kim

We demonstrate a novel all-fiber acousto-optic tunable notch filter based on coupling to cladding modes in a single-mode fiber. The device has the advantage of low loss (<0.1 dB) and low polarization dependence. By coupling input light to multiple cladding modes by use of multiple acoustic waves, we achieved an electronically controllable variable spectral profile without a significant coherent...

ژورنال: پژوهش در پزشکی 2015

background: Classical macrophages (M1) and alternative macrophages (M2) are responsible for various functions in order to maintain homeostasis. BCG vaccine and hydatid cyst fluid can be examples of stimulants which can cause M1and M2 macrophage polarization. Evaluating the expression of markers such as IFNγ and TNFα for M1 phenotype and TGFβ and IL4 for M2 phenotype is one of the confirmatory w...

حسینی, معصومه, رمضانی مقدم آرانی, احمد,

Beam polarization measurement in scattering experiments with a high accuracy and the lowest possible cost is an important issue. In this regard, deuteron beam polarization was measured in the low-energy beam line easily with a relatively low cost procedure and in a very short time by Lamb Shift Polarimeter (LSP). Also, the beam polarization has been measured in high-energy beam line with BINA. ...

Journal: :Infection and immunity 2012
Wei Li Barry P Katz Stanley M Spinola

During microbial infection, macrophages are polarized to classically activated (M1) or alternatively activated (M2) cells in response to microbial components and host immune mediators. Proper polarization of macrophages is critical for bacterial clearance. To study the role of macrophage polarization during Haemophilus ducreyi infection, we analyzed a panel of macrophage surface markers in skin...

Journal: :Journal of biomedical optics 2003
Xueding Wang Lihong V Wang Chia-Wei Sun Chih-Chung Yang

A study of polarized light transmitted through randomly scattering media of a polystyrene-microsphere solution is described. Temporal profiles of the Stokes vectors and the degree of polarization are measured experimentally and calculated theoretically based on a Monte Carlo technique. The experimental results match the theoretical results well, which demonstrates that the time-resolved Monte C...

2007
M. Kramer B. W. Stappers A. Jessner A. G. Lyne C. A. Jordan

We present polarization observations of the radio emitting magnetar AXPJ1810−197. Using simultaneous multi-frequency observations performed at 1.4, 4.9 and 8.4 GHz, we obtained polarization information for single pulses and the average pulse profile at several epochs. We find that in several respects this magnetar source shows similarities to the emission properties of normal radio pulsars whil...

Journal: :Journal of neurophysiology 2008
Midori Sakura Dimitrios Lambrinos Thomas Labhart

Many insects exploit skylight polarization for visual compass orientation or course control. As found in crickets, the peripheral visual system (optic lobe) contains three types of polarization-sensitive neurons (POL neurons), which are tuned to different ( approximately 60 degrees diverging) e-vector orientations. Thus each e-vector orientation elicits a specific combination of activities amon...

1998
S. Wolf

We present model calculations for the scattered flux and polarization of nuclear radiation having in mind the AGN unification scheme. It is our aim to survey the influence of several model parameters, especially, the influence of the torus. Additionally, we considerably improved present models, for instance by including multiple instead of single scattering. For these purposes, we developed a M...

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