نتایج جستجو برای: hiss model

تعداد نتایج: 2104622  

Journal: :Journal Of Geophysical Research: Space Physics 2022

We conduct electromagnetic particle simulations in a uniform magnetic environment to verify the nonlinear wave growth process of plasmaspheric hiss equatorial plasmasphere. The satisfaction separability criterion for coexisting multiple frequency waves initial stage wavenumber-time evolution declares that packets are coherent and capable growing nonlinearly. Spatial temporal evolutions two typi...

2014
Sakineh Saghaeiannejad-Isfahani Maryam Jahanbakhsh Mahboobeh Habibi Razieh Mirzaeian Mansoreh Nasirian Javad Sharifi Rad

BACKGROUND AND PURPOSE The user's satisfaction with information system in fact denotes the extent the user is satisfied with the system's achievement in fulfilling his/her information requirements. This study tries to explore the users' satisfaction with hospital information systems (HISs) based on DeLone and McLean's model focusing on the medical-teaching hospitals of Isfahan city. METHODOLO...

Journal: :The Yale Law Journal 1958

Journal: :Geophysical Research Letters 2023

Precipitation into the Earth's atmosphere due to pitch angle scattering by plasma waves has been recognized as one of major loss mechanisms for energetic electrons. In this study, we quantitatively evaluate their roles in precipitating electrons during a conjunction event with modulated electron precipitation observed at low altitudes Electron Loss and Fields INvestigation three types whistler ...

1999
Harm DERKSEN Hanspeter KRAFT

Invariant theory has been a major subject of research in the 19th century. One of the highlights was Gordan’s famous theorem from 1868 showing that the invariants and covariants of binary forms have a finite basis. His method was constructive and led to explicit degree bounds for a system of generators (Jordan 1876/79). In 1890, Hilbert presented a very general finiteness result using completel...

2003
Guillaume Picard Olivier Cappé

Compensation of nonlinear distortions is an issue of importance for the restoration of degraded audio material. It however remains a very challenging task, especially in cases when only a single instance of the degraded audio signal is available. Compared to other sources of distortion such as additive noise (hiss) or signal gaps, even the fundamental limits achievable by the restoration are ye...

Journal: :Journal of bacteriology 1983
S B Rodriguez J L Ingraham

The gene encoding nucleosidediphosphate kinase (ndk) was located at 55 units on the Salmonella typhimurium chromosome. The ndk locus was 83% cotransducible with hisS and 2% cotransducible with glyA in phage P22-mediated crosses. A nucleosidediphosphate kinase mutant that produced only 10% of the wild-type enzyme activity (ndk-1) grew normally and produced a heat-labile enzyme.

2011
Tine A. Biedenweg Michael H. Parsons Patricia A. Fleming Daniel T. Blumstein

BACKGROUND Animals typically show less habituation to biologically meaningful sounds than to novel signals. We might therefore expect that acoustic deterrents should be based on natural sounds. METHODOLOGY We investigated responses by western grey kangaroos (Macropus fulignosus) towards playback of natural sounds (alarm foot stomps and Australian raven (Corvus coronoides) calls) and artificia...

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