نتایج جستجو برای: atmospheric lifetime

تعداد نتایج: 131217  

2013
Katsuhisa Kitano Satoshi Ikawa Atsushi Tani Yoichi Nakashima Hiromitsu Yamazaki Tomoko Ohshima Kazuhiro Kaneko Masaaki Ito Takeshi Kuwata Atsushi Yagishita

It has been demonstrated that atmospheric plasmajets can be used for non-conventional plasma processing that involves liquids. For the purpose of disinfecting human bodies in dental and surgical therapies, sterilization experiments in solution have been conducted with low-temperature atmospheric-pressure plasmas. For the plasma disinfection in the body fluid, we have successfully developed the ...

2007
Alvaro Montenegro Victor Brovkin Michael Eby David Archer Andrew J. Weaver

[1] Two earth-system models of intermediate complexity are used to study the long term response to an input of 5000 Pg of carbon into the atmosphere. About 75% of CO2 emissions have an average perturbation lifetime of 1800 years and 25% have lifetimes much longer than 5000 years. In the simulations, higher levels of atmospheric CO2 remain in the atmosphere than predicted by previous experiments...

Journal: :Chaos: An Interdisciplinary Journal of Nonlinear Science 2019

2017
Peter O Hopcroft Paul J Valdes Fiona M O'Connor Jed O Kaplan David J Beerling

Atmospheric methane (CH4) varied with climate during the Quaternary, rising from a concentration of 375 p.p.b.v. during the last glacial maximum (LGM) 21,000 years ago, to 680 p.p.b.v. at the beginning of the industrial revolution. However, the causes of this increase remain unclear; proposed hypotheses rely on fluctuations in either the magnitude of CH4 sources or CH4 atmospheric lifetime, or ...

Silicoaluminophosphate (SAPO-34) molecular sieve doped with transition metals, Mn and Ni, with different molar ratios (Mn/Ni=0.33, 3) were investigated for their activity, selectivity and lifetime in biomethanol to olefins reaction. MnNiAPSO-34 nanostructured catalyst was synthesized by hydrothermal method and addition of metals was carried out by isomorphous substitution into the crystalline f...

Journal: :Open Syst. Inform. Dynam. 2011
Patrycja Stefanska Marcin Wilczewski Marek Czachor

Comparison of the theory of Rabi oscillations with experiment [M. Wilczewski and M. Czachor, Phys. Rev. A 79, 033836 (2009)] suggests that cavity lifetime parameters obtained in measurements with many photons may be much smaller than those applicable to almost vacuum states of light. In this context, we show that the conclusion remains unchanged even if one takes a more realistic description of...

2012
Prashanth S. Venkataram

Muons are produced in the upper atmosphere as a result of the collisions of incoming highenergy particles from outer space with atmospheric particles. These muons then travel through the atmosphere at high energies and are thus measured to exist for a much longer time than their mean lifetime at rest. This experiment measures both the mean lifetime of muons at rest as well as the mean speed thr...

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