نتایج جستجو برای: neon

تعداد نتایج: 2279  

Journal: :Physical review letters 2010
Nicolas Sisourat Hendrik Sann Nikolai V Kryzhevoi Přemysl Kolorenč Tilo Havermeier Felix Sturm Till Jahnke Hong-Keun Kim Reinhard Dörner Lorenz S Cederbaum

The interatomic electronic decay after inner-valence ionization of a neon atom by a single photon in a neon-helium dimer is investigated. The excited neon atom relaxes via interatomic Coulombic decay and the excess energy is transferred to the helium atom and ionizes it. We show that the decay process is only possible if the dimer's bond stretches up to 6.2 Å, i.e., to more than twice the equil...

2015
V Shumova L M Vasilyak

The influence of dust particles on the concentration of metastable neon atoms and ionization was investigated using the developed drift/diffusion model for plasma of positive column of glow discharge. The detailed de-excitation in neon was considered. In addition to usual plasma losses in dusty plasmas, the quenching of metastable atoms on dust particle surface was considered. The strong influe...

Journal: :Vision Research 2001
Akiyoshi Kitaoka Jiro Gyoba Hideaki Kawabata Kenzo Sakurai

Neon color spreading is closely related to the photopic visual phantom illusion, since these two completion phenomena are characterized by in-phase lightness induction, and the only difference in the stimulus configuration is the difference in the inducer height. This idea was supported by the present study. Neon color spreading showed almost the same function of critical spatial frequency as p...

Journal: :Vision Research 1995
Paola Bressan

Ejima, Redies, Takahashi and Akita [(1984) Vision Research, 24, 1719-1726], studying the dependence of the neon colour spreading effect on wavelength and illuminance, found a number of relationships that appeared of difficult interpretation. This paper shows that these relationships can all be logically predicted within Grossberg and Mingolla's [(1985) Psychological Review, 92, 173-211] approac...

Seventeen two-photon transitions for neon have been observed in the 580- 635 nm spectral region for use in the spectroscopic study of its higher excited levels, which are not accessible by one-photon absorption. To compare the two and one-photon absorption signals originating from the same lower level, an effort was made to record single-photon optogalvanic spectrum in the available wavele...

2004
D. N. McKinsey

This article describes CLEAN, an approach to the detection of low-energy solar neutrinos and neutrinos released from supernovae. The CLEAN concept is based on the detection of elastic scattering events (neutrino-electron scattering and neutrinonuclear scattering) in liquified noble gases such as liquid helium, liquid neon, and liquid xenon, all of which scintillate brightly in the ultraviolet. ...

2008
J E Herald L Bianchi D J Hillier

We show that a strong P-Cygni feature seen in the far-UV spectra of some very hot ( Te f f & 85 kK) central stars of planetary nebulae (CSPN), which has been previously identified as C III λ977, actually originates from Ne VII λ973. Using stellar atmospheres models, we reproduce this feature seen in the spectra of two [WR]-PG 1159 type CSPN, Abell 78 and NGC 2371, and in one PG 1159 CSPN, K 1-1...

2010
Michele A. Kuester Joel T. McCorkel Brian R. Johnson Thomas U. Kampe

The National Ecological Observatory Network (NEON), funded by the National Science Foundation, is a continental-scale ecological observation platform for discovering, understanding and forecasting the impacts of climate change, land-use change, and invasive species on ecology. An imaging spectrometer will be used by the NEON Airborne Observation Platform (AOP) to observe both the human drivers ...

Journal: :Physical review 2022

The NEWS-G collaboration uses spherical proportional counters (SPCs) to search for weakly interacting massive particles (WIMPs). In this paper, we report the first measurements of nuclear quenching factor in neon gas at 2 bar using an SPC deployed a neutron beam TUNL facility. energy-dependence is modeled simple power law: αEnrβ; determine its parameters by simultaneously fitting data collected...

Journal: :Journal of vision 2013
Marco Cicchini Lothar Spillmann

When a red star is placed in the middle of an Ehrenstein figure so as to be collinear with the surrounding black rays, a reddish veil is perceived to fill the white center. This is called neon color spreading. To better understand the processes that give rise to this phenomenon, we studied the temporal properties of the effect. Specifically, we presented a "sustained" black Ehrenstein figure (r...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید