نتایج جستجو برای: electron production

تعداد نتایج: 897107  

Journal: :Physical review 2022

We provide a comprehensive overview of transversely polarized $\mathrm{\ensuremath{\Lambda}}$ production at the future Electron-Ion Collider (EIC). In particular, we study both spontaneous transverse polarization as well spin transfer within momentum dependent (TMD) factorization region. To describe polarization, consider contribution from TMD polarizing fragmentation function (TMD PFF). Simila...

Journal: :Essays in biochemistry 2010
Martin Jastroch Ajit S Divakaruni Shona Mookerjee Jason R Treberg Martin D Brand

Mitochondrial proton and electron leak have a major impact on mitochondrial coupling efficiency and production of reactive oxygen species. In the first part of this chapter, we address the molecular nature of the basal and inducible proton leak pathways, and their physiological importance. The basal leak is unregulated, and a major proportion can be attributed to mitochondrial anion carriers, w...

2012
Hiroyo Otaki R. Craig Everroad Katsumi Matsuura Shin Haruta

Microbial mats containing the filamentous anoxygenic photosynthetic bacterium Chloroflexus aggregans develop at Nakabusa hot spring in Japan. Under anaerobic conditions in these mats, interspecies interaction between sulfate-reducing bacteria as sulfide producers and C. aggregans as a sulfide consumer has been proposed to constitute a sulfur cycle; however, the electron donor utilized for micro...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1389

in this thesis, a new optically active poly(amide-imide) (pai) was synthesized by the indirect polycondensation reaction of the l-phenylalanine based diacid chloride and 4,4?-diaminodiphenylether in the presence of triethylamine in n-methyl-2-pyrrolidone. the formation of pai was confirmed by ftir, 1h nmr and elemental analysis. in next step, the surface of titanium dioxide (tio2) nanoparticles...

Journal: :The Journal of chemical physics 2004
Nobuaki Yonekura Takashi Nakajima Yukari Matsuo Tohru Kobayashi Yoshimitsu Fukuyama

We report the detailed experimental study on the production of electron-spin-polarized Sr+ ions through one-photon resonant two-photon ionization via laser-excited 5s5p 3P1 (MJ = +1) of Sr atoms produced by laser-ablation. We have experimentally confirmed that the use of laser-ablation for the production of Sr atoms prior to photoionization does not affect the electron-spin polarization. We hav...

Journal: :Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada 2002
John J Donovan Nicholas E Pingitore

We find no physical basis for traditional mass-fraction weighted averaging of X-ray continuum measured in pure elements to estimate continuum production from compounds. Measurements of continuum from pairs of stable isotopes demonstrate that mass alone (the presence of more or fewer neutrons) has no effect on continuum production in electron probe microanalysis. Electron-fraction weighted avera...

2012
Elizabeth Surrey

Related Articles Wave frequency dependence of H− ion production and extraction in a transformer coupled plasma H− ion source at SNU Rev. Sci. Instrum. 83, 02A727 (2012) Physics research and technology developments of electron string ion sources Rev. Sci. Instrum. 83, 02A512 (2012) Pantechnik new superconducting ion source: PantechniK Indian Superconducting Ion Source Rev. Sci. Instrum. 83, 02A3...

1998
A. V. Pavlov

In this paper we present the results of a study of the electron cooling rate, the production rates of vibrationally excited N2…v†, and the production frequency of the N2 vibrational quanta arising from the collisions of electrons with unexcited N2…0† and vibrationally excited N2…1† molecules as functions of the electron temperature. The electron energy transfer rates for vibrational excitation ...

1991
D. A. Williams R. J. Wilson I. Stockdale

The components of the SLD barre1 Cerenkov Ring Imaging Detector (GRID) are now built and are being installed. We report on tests of these, including tests of the fiber optic calibration system, detailed studies of electron drift paths on production drift boxes and detectors, tests of the dynamic gating system and its effect on drift path distortions due to space-charge, and a measurement of the...

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