Zobrazeno 1 - 10
of 42
pro vyhledávání: '"E. Keicher"'
Autor:
A. Verevkin, Roman Sobolewski, Eric A. Dauler, Aaron Pearlman, B. M. Voronov, A. Ferri, Joel K. W. Yang, Karl K. Berggren, William E. Keicher, G.N. Gol'tsman
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 15:626-630
We have developed a fabrication process for GHz-counting-rate, single-photon, high-detection-efficiency, NbN, nanowire detectors. We have demonstrated two processes for the device patterning, one based on the standard polymethylmethacrylate (PMMA) or
Autor:
Mark L. Stevens, William E. Keicher, David O. Caplan, Ronald R. Parenti, David J. Geisler, A. M. Fletcher, Timothy M. Yarnall, Scott A. Hamilton
Publikováno v:
OFC/NFOEC
Combining optical-phase-locked loop based coherent detection, interleaving, and powerful rate-½ FEC enabled the error-free transmission of BPSK waveforms at information rates of 9.94-Gb/s and 19.88-Gb/s with sensitivities of 2.1 photons-per-bit and
Autor:
D.L. Spears, Tso Yee Fan, William E. Keicher, B.E. Edwards, I. Melngailis, Antonio Sanchez, S. Marcus, Charles Freed
Publikováno v:
Proceedings of the IEEE. 84:227-267
The development of the laser soon led to recognition of its potential in radar applications. As radar systems were designed and implemented, however, it became clear that major refinement of the laser sources was needed to meet specific radar transmi
Autor:
Joel G. Grimm, Adam Prince, Steven A. Davidson, Kenneth I. Schultz, William E. Keicher, Michael Hess, Philip M. Blumenau, Mary Martin, Alan L. Kachelmyer, Leo J. Sullivan
Publikováno v:
Naval Engineers Journal. 106:192-207
An airborne passive/active surveillance aircraft-based, electro-optic sensor system, named Gatekeeper, is being developed for the US Navy Theater Ballistic Missile Defense Program. The sensor is designed to detect theater ballistic missiles (TBMs), e
Autor:
E Keicher, Robert W Meech
Publikováno v:
The Journal of Physiology. 475:45-57
1. In Rana oocytes, measurements with chloride-sensitive microelectrodes show that the mean intracellular chloride activity (34.8 +/- 6.3 mM, n = 79) is three times higher than that expected for the passive distribution of chloride ions across the ou
Publikováno v:
Biology of the Cell. 75:89-99
The review focuses on calcium accumulation by secretory organelles. The observation that secretory granules contain variable and often important quantities of calcium (1–200 mM of total calcium) can be interpreted as a maturation index. A progressi
Publikováno v:
Journal of Histochemistry & Cytochemistry. 39:1645-1658
The localization of Ca(2+)- and Mg(2+)-ATPases was determined in Aplysia central and peripheral nervous system, using an electron microscopic cytochemical method. The enzyme activity appeared localized to the membrane of glial granules (gliagrana), p
Publikováno v:
European Journal of Neuroscience. 3:10-17
The visceral ganglion of Aplysia was mechanically desheathed after protease softening of the connective tissue to permit the positioning of ion-selective electrodes in the vicinity of the neuronal membrane. The effects of this treatment on satellite
Publikováno v:
Neuroscience. 42:593-601
The relative volume of perineuronal extracellular space, the number of gliagrana and their total calcium content have been measured in Aplysia punctata and A. californica, at the periphery of giant neurons R2 and LP1. After chemical fixation, the ext
Publikováno v:
Cell and Tissue Research. 262:149-156
The content of specific glio-interstitial granules in situ was studied in Mytilus retractor muscle using fluorescent probes and X-ray microanalysis. The granules readily take up the fluorescent monoamine dye acridine orange added to sea water (2.7×1