نتایج جستجو برای: induced polarization

تعداد نتایج: 1039108  

Journal: :The journal of physical chemistry. B 2015
Shubhajit Paul Bela E Bode Jörg Matysik A Alia

A sample of solubilized and quinone-depleted reaction centers from the purple bacterium Rhodobacter (R.) sphaeroides wild type has been prepared entirely (13)C and (15)N isotope labeled at all positions of the protein as well as of the cofactors. In this sample, the occurrence of the solid-state photo-CIDNP (photochemically induced dynamic nuclear polarization) effect has been probed by (13)C s...

2018
Chuwen Li Chao Zhang Hefeng Zhou Yu Feng Fan Tang Maggie P. M. Hoi Chengwei He Dan Ma Chao Zhao Simon M. Y. Lee

Citation: Li C, Zhang C, Zhou H, Feng Y, Tang F, Hoi MPM, He C, Ma D, Zhao C and Lee SMY (2018) Inhibitory Effects of Betulinic Acid on LPS-Induced Neuroinflammation Involve M2 Microglial Polarization via CaMKKβ-Dependent AMPK Activation. Front. Mol. Neurosci. 11:98. doi: 10.3389/fnmol.2018.00098 Inhibitory Effects of Betulinic Acid on LPS-Induced Neuroinflammation Involve M2 Microglial Polariz...

Journal: :Physical review letters 2011
S P Malace M Paolone S Strauch I Albayrak J Arrington B L Berman E J Brash B Briscoe A Camsonne J-P Chen M E Christy E Chudakov E Cisbani B Craver F Cusanno R Ent F Garibaldi R Gilman O Glamazdin J Glister D W Higinbotham C E Hyde-Wright Y Ilieva C W de Jager X Jiang M K Jones C E Keppel E Khrosinkova E Kuchina G Kumbartzki B Lee R Lindgren D J Margaziotis D Meekins R Michaels K Park L Pentchev C F Perdrisat E Piasetzky V A Punjabi A J R Puckett X Qian Y Qiang R D Ransome A Saha A J Sarty E Schulte P Solvignon R R Subedi L Tang D Tedeschi V Tvaskis J M Udias P E Ulmer J R Vignote F R Wesselmann B Wojtsekhowski X Zhan

We measured with unprecedented precision the induced polarization P(y) in (4)He(e,e'p)(3)H at Q(2)=0.8 and 1.3  (GeV/c)(2). The induced polarization is indicative of reaction-mechanism effects beyond the impulse approximation. Our results are in agreement with a relativistic distorted-wave impulse approximation calculation but are overestimated by a calculation with strong charge-exchange effec...

Journal: :Nano letters 2011
S-F Shi Xiaodong Xu D C Ralph P L McEuen

We achieve direct electrical readout of the wavelength and polarization dependence of the plasmon resonance in individual gold nanogap antennas by positioning a graphene nanoconstriction within the gap as a localized photodetector. The polarization sensitivities can be as large as 99%, while the plasmon-induced photocurrent enhancement is 2-100. The plasmon peak frequency, polarization sensitiv...

2014
Vladimir Burtman Haiyan Fu Michael S. Zhdanov

Unconventional hydrocarbon reserves substantially surpass those of conventional resources and therefore are extremely economically attractive. However, exploration and production of unconventional reserves is challenging. This paper demonstrates that one can observe significant induced polarization effects in shale reservoir rocks, which can be used in exploration for unconventional reserves. T...

2006
M. L. Norman

Scattering of the cosmic microwave background (CMB) in clusters of galaxies polarizes the radiation. We explore several polarization components which have their origin in the kinematic quadrupole moments induced by the motion of the scattering electrons, either directed or random. Polarization levels and patterns are determined in a cluster simulated by the hydrodynamical Enzo code. We find tha...

Journal: :Optics express 2015
Ben McMillen Yves Bellouard

Femtosecond laser exposure in the non-ablative regime induces a variety of bulk structural modifications, in which anisotropy may depend on the polarization of the writing beam. In this work, we investigate the correlation between polarization state and stress anisotropy. In particular, we introduce a methodology that allows for rapid analysis and visualization of laser-induced stress anisotrop...

2016
O. Scholten A. Bonardi S. Buitink A. Corstanje U. Ebert J. E. Enriquez H. Falcke J. R. Hörandel P. Mitra K. Mulrey A. Nelles S. Thoudam J. P. Rachen L. Rossetto C. Rutjes P. Schellart S. ter Veen T. Winchen

We present measured radio emission from cosmic-ray-induced air showers under thunderstorm conditions. We observe for these events large differences in intensity, linear polarization and circular polarization from the events measured under fair-weather conditions. This can be explained by the effects of atmospheric electric fields in thunderclouds. Therefore, measuring the intensity and polariza...

2013

This note introduces the use of distributed polarization x-talk measurement for raw polarization maintaining fiber (PMF) quality inspection, PMF coil winding process monitoring, PMF coil adhesive curing and stress release monitoring, overall PMF coil quality inspection, and temperature induced stress determination. PMF birefringence temperature variation can also be precisely measured. The use ...

Journal: :Optics express 2006
Tsung-Hsien Lin Yuhua Huang Andy Y G Fuh Shin-Tson Wu

A scattering-free, polarization controllable Fresnel zone plate lens is demonstrated using a photo-induced alignment of the dye-doped liquid crystal film. This photo-aligned liquid crystal zone plate provides orthogonal polarization states for odd and even zones. The different focus orders can be separated because of their different polarization states. The fabrication process is relatively sim...

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