نتایج جستجو برای: anion exchange

تعداد نتایج: 215750  

Journal: :The Journal of Cell Biology 1977
M A Goldstein J P Schroeter R L Sass

Optical diffraction patterns from electron micrographs of both longitudinal and cross sections of normal and anomalous canine cardiac Z bands have been compared. The data indicate that anomalous cardiac Z bands resembling nemaline rods are structurally related to Z bands in showing a repeating lattice common to both. In thin sections transverse to the myofibril axis, both electron micrographs a...

2004
Wendy L. Freedman

The Carnegie Supernova Project (CSP) is aimed at providing an independent measure of change in the the Hubble expansion as a function of redshift, and setting constraints dark energy contribution to the total energy content of the universe. Using type Ia supernovae (SNIa), the CSP differs from other projects to date in its goal of providing an I-band restframe Hubble diagram. The CSP is focused...

Journal: :Physical review letters 1996
John Quang

We study the dielectric response of impurity two-level atoms in a photonic band gap (PBG) to an applied laser field. In this system, the atoms may exchange energy coherently by resonance dipoledipole interaction (RDDI) which is assumed to be strong compared to the spontaneous emission rate. When the applied Rabi frequency exceeds the RDDI energy scale, nonlinear saturation of the absorptive par...

2005
Ben Allen Tony Brown Katja Schwieger Ernesto Zimmermann Wasim Malik David Edwards Laurent Ouvry Ian Oppermann

Ultra Wide Band (UWB) wireless communications offers a radically different approach to wireless communication compared to conventional narrow band systems. Global interest in the technology is huge. This paper reports on the state of the art of UWB wireless technology and highlights key application areas, technological challenges, higher layer protocol issues, spectrum operating zones and futur...

Journal: :Physical review letters 2008
M Taguchi M Matsunami Y Ishida R Eguchi A Chainani Y Takata M Yabashi K Tamasaku Y Nishino T Ishikawa Y Senba H Ohashi S Shin

We have reexamined the valence-band (VB) and core-level electronic structure of NiO by means of hard and soft x-ray photoemission spectroscopies. The spectral weight of the lowest energy state was found to be enhanced in the bulk sensitive Ni 2p core-level spectrum. A configuration-interaction model including a bound state screening has shown agreement with the core-level spectrum and off- and ...

Journal: :Chemical communications 2015
Shanghao Li Joseph Dale Combs Olaa Eid Alharbi Jing Kong Chengshan Wang Roger M Leblanc

The attenuated total reflection technique was utilized to obtain FTIR spectra of (13)C-labeled peptides with a sequence of (AAAAK)4AAAAY in H2O. The regular amide I band was not at the typical position as reported in globular proteins, whereas the (13)C amide I band was still sensitive to conformation change.

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