degassing rates of as-received and previously degassed

Development and sensitivity analysis of a model for assessing stratification and safety of Lake Nyos during artificial degassing

Martin Schmid Andreas Lorke Alfred Wuest Michel Halbwachs Gregory Tanyileke Development and sensitivity analysis of a model for assessing stratification and safety of Lake Nyos during artificial degassing Received: 5 November 2002 /Accepted: 3 April

Effects of Dissolved Air on Subcooled Flow Boiling of a Dielectric

degassed liquid was measured using an oxygen detector Model 407510 by Extech Instruments to be 3 ppm, which is equiva-lent to 0.000215 mole/mole of air content 0.022% by volume . Therefore, it is considered a satisfactory level of degassing. An additional

Dynamics of magma mixing and degassing recorded in

Crystal-rich materials (scoriae and lava flows) emitted during the 1985–2000 activity of Stromboli were taken into consideration for systematic study of bulk rock/matrix glass chemistry and in particular for the study of chemical and textural zoning of plagioclase, the most abundant mineral phase. Over the considered time period, bulk rock composition remained fairly constant in both major

Flow analysis on microcasting with degassed

2020/5/20The dish with the mold was degassed in a vacuum desiccator (VL-C) (ASONE, Osaka), which was connected to a vacuum line at a gauge pressure of -98 kPa for 1 h degassing. After being degassed, the dish with the mold was immediately removed from the desiccator and the solution of native or cross-linked albumin was applied onto the open ends of the micro-channels of the mold

Surface Analysis

Physisorption is a process in which the van der Waals forces of the surface of a cleaned and degassed compound can attract and hold onto low-temperature (liquefied) gases. By comparing the amount of gas used, characteristics of the compound's surface can then be calculated, like surface area, average pore size, total pore size, etc. Physisorption can occur with any solid-fluid or solid-gas

Trace element degassing and enrichment in the eruptive plume

Trace element degassing and enrichment in the eruptive plume of the 2000 eruption of Hekla volcano, Iceland Severine Mounea,*, Pierre-J. Gauthiera, Sigurdur R. Gislasonb, Olgeir Sigmarssona,b a Laboratoire Magmas et Volcans, Observatoire de Physique du Globe de Clermont-Ferrand, CNRS—Universite Blaise Pascal—IRD,

(PDF) Rates of carbon dioxide plume degassing from

Rates of carbon dioxide plume degassing from Mount Etna volcano Marco Liuzzo Related Papers Contribution of CO2 and H2S emitted to the atmosphere by plume and diffuse degassing from volcanoes: the Etna volcano case study By Marga Lopez By

Raman scattering study of stoichiometric Si and Ge type II

Si136 was prepared by a modified degassing procedure first described by Gryko et al.10 Sodium silicide was degassed at 385 C at;1025 Torr for several days. The resulting mix-ture of NaxSi136 (x,4) and Na8Si46 was density separated using CCl41CH2Br2 xSi

Global Warming Potential of Inhaled Anesthetics:

2010/2/12Global warming potentials (GWPs) of airborne chemical compounds are currently under scrutiny as many industries search for replacement compounds that will minimize environmental impact. Inhaled anesthetics, as a group, are recognized greenhouse gases. 1 – 3 However, because they have been considered "medically essential" and used in relatively small amounts, they have been only

Aerial strategies advance volcanic gas measurements at

2020/10/30At present, constraints on carbon degassing exist for ~60 of the ~300 currently active volcanoes and, of those, only ~10 are characterized by long-term datasets that enable any assessment of temporal variability in gas composition or carbon emission rates ().

Atom Transfer Radical Polymerization of N,N

per 1 mL of monomer), and ligand (1 equiv). After degassing with argon for 20 min, CuX (1 equiv) was added. The solution was degassed for an additional 10 min, and initiator (1 equiv) was added via syringe. The reaction was carried out at the

Preparation and epoxy curing of novel dicyclopentadiene

Preparation and Epoxy Curing of Novel Dicyclopentadiene-Derived Mannich Amines FENG-PO TSENG,1 FENG-CHIH CHANG,1 SHIAU-FENG LIN,2 JIANG-JEN LIN2 1 Institute of Applied Chemistry, National Chiao-Tung University, Hsinchu, Taiwan, Republic of China

Determination the Thermal Stability of Perfluoroalkylethers by

degassing, the transducer cavity was prefilled with test fluid. This was done by mounting a cell containing the type of fluid to be tested (approximately 2 mL), evacuating to 0.1 torr with stir- ring for several minutes to degas the fluid, closing the valve, and then

Characterization Using Krypton Adsorption and BET

The samples were degassed again using the previously described technique on completion of the krypton adsorption measurements. Water adsorption isotherms were collected for each excipient using the Micromeritics 3Flex analyzer on completion of the preparation.

Degassing characteristics of some 'O' ring materials

Degassing rates given by the first pump-down for Viton (curve 1) and nitrile (curve 8) are for new O rings straight from the manufacturers, which were merely wiped in tissue paper before test. These runs can be regarded mainly as a method for bringing the samples to a standard condition.

Aerial strategies advance volcanic gas measurements at

2020/10/30At present, constraints on carbon degassing exist for ~60 of the ~300 currently active volcanoes and, of those, only ~10 are characterized by long-term datasets that enable any assessment of temporal variability in gas composition or carbon emission rates ().

Flow analysis on microcasting with degassed

2020/5/20The dish with the mold was degassed in a vacuum desiccator (VL-C) (ASONE, Osaka), which was connected to a vacuum line at a gauge pressure of -98 kPa for 1 h degassing. After being degassed, the dish with the mold was immediately removed from the desiccator and the solution of native or cross-linked albumin was applied onto the open ends of the micro-channels of the mold

Effects of Dissolved Air on Subcooled Flow Boiling of a Dielectric

degassed liquid was measured using an oxygen detector Model 407510 by Extech Instruments to be 3 ppm, which is equiva-lent to 0.000215 mole/mole of air content 0.022% by volume . Therefore, it is considered a satisfactory level of degassing. An additional

Dating degassed groundwater with

Dating degassed groundwater with 3H/3He Ate Visser,1 Hans Peter Broers,2 and Marc F. P. Bierkens1,2 Received 21 December 2006; revised 9 July 2007; accepted 20 July 2007; published 30 October 2007. [1] The production of gases in groundwater under contaminated locations by

Aerial strategies advance volcanic gas measurements at

At present, constraints on carbon degassing exist for ~60 of the ~300 currently active volcanoes and, of those, only ~10 are characterized by long-term datasets that enable any assessment of temporal variability in gas composition or carbon emission rates ().

Degassing Behavior of Nanostructured Al and Its

2009/11/6U ltrafine-grained (UFG) and nanostructured Al alloys (e.g., grain size 100 to ~1000 nm) produced via cryomilling have attracted considerable interest in the past decade due to their reported high room-temperature strength, high specific strength, and enhanced high-strain-rate properties.[1, 2] The observed improvements in mechanical response over those of conventional materials are in general

Plastic masters—rigid templates for soft lithography

Plastic masters—rigid templates for soft lithography Salil P. Desai,a Dennis M. Freemanab and Joel Voldman*a Received 9th December 2008, Accepted 4th February 2009 First published as an Advance Article on the web 5th March 2009 DOI: 10.1039/b822081f We

Frontiers

Magmatic degassing, typically measured as SO2 flux, plays a fundamental role in controlling volcanic eruption style and is one of the key parameters used by volcano observatories to assess volcanic unrest and detect eruption precursors. Volcanic tremor, the integrated amplitude of seismic energy release over a range of frequencies, is also a key parameter in volcano monitoring. A connection

A Study of the Gas Phase Polymerization of Propylene: The impact

The salt was previously vacuum-dried during five hours at 200C and kept under argon atmosphere at room temperature. The oil was degassed frozen under vacuum and then kept under argon. The experiments performed with dry injection were

Raman scattering study of stoichiometric Si and Ge type II

Si136 was prepared by a modified degassing procedure first described by Gryko et al.10 Sodium silicide was degassed at 385 C at;1025 Torr for several days. The resulting mix-ture of NaxSi136 (x,4) and Na8Si46 was density separated using CCl41CH2Br2 xSi

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