نتایج جستجو برای: 5111

تعداد نتایج: 86  

1996
Govind P Agrawal

A novel phase-detection scheme based on phase conjugation is proposed. Its use has all the advantages offered by the conventional heterodyne detection technique but simplifies the receiver design considerably since neither a balanced receiver nor a polarization-diversity receiver are required. The use of homodyne or heterodyne detection has not become practical for optical communication systems...

2016
Rajiv Gupta M. Münchow R. Maass W. Scheid

A classical model with dynamical deformations and orientations degrees of freedom is presented for collisions of deformed nuclei. Applications of this model are made to the damping effects and to sub-coulomb transfer in 'U+ 38U reactions at Elab'7. 42 and 5.05-6.07 MeVlu, respectively. I INTRODUCTION The 'U+ 'U reaction is well studied at beam energies of both above and below the Coulomb barrie...

2003
SHELDON S. SHEN LAWRENCE J. BURGART

Fertilization of the sea urchin egg triggers a sequence of events that are necessary for metabolic derepression and stimulation of proliferation. Changes in intracellular Ca 2+ and H ÷ activities regulate the sequence of events. Intracellular sodium activity is important in the regulation of the intracellular activities of these ions and may directly regulate metabolic events. Using Na+-sensiti...

1996
H Mabuchi

I propose a quantum-trajectories approach to parametric identification of the effective Hamiltonian for a Markovian open quantum system, and discuss an application motivated by recent experiments in cavity quantum electrodynamics. This example illustrates a strategy for quantum parameter estimation that efficiently utilizes the information carried by correlations between measurements distribute...

1998
SHINGO SHOJI DEBRA SIMMS KEI YAMADA JOEL P. GALLAGHER

Previous reports of membrane hyperpolarizations, associated with acute application of cocaine, have been recorded from brain slice preparations containing aminergic nuclei and have always been attributed to cocaine’s ability to elevate levels of local biogenic amines followed by activation of their receptors. The majority of these studies were conducted with brain slices obtained from rats that...

2002
B. Fornal P. F. Mantica B. A. Brown R. Broda P. Bhattacharyya M. P. Carpenter M. Cinausero P. J. Daly T. Glasmacher Z. W. Grabowski D. E. Groh M. Honma F. G. Kondev W. Królas T. Lauritsen S. N. Liddick S. Lunardi N. Marginean T. Mizusaki D. J. Morrissey W. F. Mueller T. Otsuka D. Seweryniak H. Schatz A. Stolz

The level structure of 54 22Ti32 has been explored for the first time by combining β-decay measurements from fragmentation products with prompt γ -ray spectroscopy following deep inelastic reactions. The latter technique was also instrumental in tracing Ti30 to higher spin. The data provide new tests of effective interactions for full pf -shell calculations in neutron-rich nuclei above 48Ca. Th...

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