نتایج جستجو برای: Argon isotherm

تعداد نتایج: 14880  

2005
C. M. Evans

Field ionization of high-n CH3I Rydberg states doped into argon is presented as a function of argon number density along the critical isotherm. These data exhibit a decrease in the argon induced shift of the dopant ionization energy near the critical point. We show that this decrease is due to the interaction between argon and the quasi-free electron arising from field ionization of the dopant....

Journal: :chemistry of solid materials 2015
s. m. pourali a. samadi-maybodi

a  facile  effective  stirring  aging  at  room  temperature  prior  to  conventional  hydrothermal treatment was employed in the template-free synthesis of micro- and nano-crystalline sodalites with  two  different  initial  gel  compositions.  the  effect  of  initial  si/al  molar  ratio,  naoh concentration and stirring aging time were investigated on the morphology and particle size of the...

2016
F. Millot

2014 I have determined a set of adsorption isotherms for argon on graphite from 55 to 62 K. An interpretation of the results is proposed. LE JOURNAL DE PHYSIQUE LETTRES TOME 40, 1,,r JANVIER 1979, Classification Physics Abstracts 82.65 Argon on graphite isotherms have been determined by volumetry with a modified MacLeod gauge previously described by Larher [1]. The cooling bath is solid nitroge...

2005
C. M. Evans G. L. Findley

Field ionization of C2H5I doped into argon is presented as a function of argon number density along the argon critical isotherm. These data exhibit a decrease in the argon induced shift of the C2H5I ionization energy near the critical point similar to recent field ionization measurements of CH3I/Ar. We show that this decrease is due to the interaction between argon and the quasi-free electron a...

2001
Peter I. Ravikovitch Alexander V. Neimark

We present a consistent method for calculation of pore size distributions in nanoporous materials from adsorption and desorption isotherms, which form the hysteresis loop H1 by the IUPAC classification. The method is based on the nonlocal density functional theory (NLDFT) of capillary condensation hysteresis in cylindrical pores. It is implemented for the nitrogen and argon sorption at their bo...

2006
L. A. G. AYLMORE

-Sorption isotherms for four gases (N2, A, Kr and C O 2 ) , commonly used in specific surface area and pore structure measurements, have been accurately determined on a number of clay mineral and oxide systems. Specific surface areas obtained by application of the BET theory to these isotherms illustrate the extent to which the apparent cross-sectional areas for these sorbed gases vary with sur...

2013
J. A. S. Ting L. M. D. Rosario A. M. Ulano H. V. Lee H. J. Ramos R. B. Tumlos

This study deals with the enhancement of chromium (VI) removal by vacuum drying and plasma pre-treatments of cocolumber (Cocos nucifera) sawdust. For fixed adsorbent dose and pH, the effects of important parameters such as initial adsorbate concentration and contact time are determined. Results show that both pre-treatments increased the adsorption efficiency of the sawdust. The adsorption data...

Journal: :The journal of physical chemistry. A 2005
Luxi Li C M Evans G L Findley

Field ionization measurements of high-n CH(3)I and C(2)H(5)I Rydberg states doped into krypton are presented as a function of krypton number density along the critical isotherm. These data exhibit a decrease in the krypton-induced shift of the dopant ionization energy near the critical point. This change in shift is modeled to within +/-0.2% of experiment using a theory that accounts for the po...

2009
Luxi Li Xianbo Shi C. M. Evans G. L. Findley

0301-0104/$ see front matter 2009 Elsevier B.V. A doi:10.1016/j.chemphys.2009.03.022 * Corresponding author. Address: Department of C Queens College – CUNY, Flushing, NY 11367, United S fax: +1 718 997 5531. E-mail address: [email protected] (C.M. E Vacuum ultraviolet photoabsorption spectra of CH3I 6s and 6s0 Rydberg states doped into supercritical argon, krypton, and xenon perturbers ...

ژورنال: سلامت و محیط زیست 2013
بقاءپور, محمد علی, جاهد, بابک, جوشنی, غلام حسین,

Background and Objectives: Increasing waste tiers production has made the recycling of this solid waste a critical issue in the world. On the other hand, it seems contamination of groundwater to the petroleum pollutant like gasoline is a great threat to the health of societies in developing countries. The main objective of this study was gasoline removal from aquatic environment by waste tire d...

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