Results 171 to 180 of about 973,075 (210)

Optical extraction efficiency in gas-flow lasers

Optics Letters, 1995
It is shown that the celebrated Rigrod model [J. Appl. Phys. 34, 2602 (1963)] is inadequate for calculating the output power of gas-f low lasers in an important range of parameters in which the quenching of the excited species is slow and the optical extraction eff iciency is high.
B D, Barmashenko, S, Rosenwaks
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THE SOLVENT EXTRACTION OF CRUDE MUSTARD GAS

Canadian Journal of Research, 1947
Equilibrium studies with low-boiling hydrocarbon fractions and crude mustard gas indicate that the latter can be extracted to give product purities of approximately 92.5% with 95% recovery. These values have been verified in the operation of a pilot plant for continuous counter-current extraction of crude mustard gas.
R, MUNGEN, H, SHEFFER
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Gas‐Assisted Mechanical Extraction of Oil Seeds

Chemie Ingenieur Technik, 2006
It is the objective of this thesis to show the general applicability of the Gas Assisted Mechanical Expression (GAME) process for recovery of oil from oilseeds with high yields. In this process, the oilseeds are saturated with supercritical CO2 before mechanical pressing. The CO2 displaces part of the oil during the pressing and therefore increases the
Kuipers, N.J.M., Venter, M.J., Willems, P., de Haan, André Banier   +3 more
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Preparation of standard vapor-gas mixtures for gas chromatography: continuous gas extraction

Analytical Chemistry, 1984
Preparation de melanges standards basee sur le concept de l'action de tampon, de systemes heterogenes maintenant les microconcentrations des composants de la phase gazeuse a un niveau stable. Essais sur des solutions d'hydrocarbures aromatiques volatils, cetanes, alcools et esters dans du Carbowax et de l'eau.
A. G. Vitenberg, M. I. Kostkina, B. V. Ioffe   +2 more
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Liquefaction of Biomass by Supercritical Gas Extraction

Energy Sources, 2001
Verbascum and sunflower stalks mill were converted to liquid products by using organic solvents (methanol, ethanol, and acetone) with catalysts (%10 NaOH) and without catalysts in an autoclave at temperatures of 533 and 573 K for verbascum and 523 and 563 K for sunflower.The liquid products were extracted by liquid-liquid extraction (benzene and ...
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Supercritical Gas Extraction of Coal

1988
The fundamentals of supercritical gas extraction is briefly described, and a review of the recent investigations of the factors controlling the supercritical gas extraction of coal is presented.
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
exaly  

From Gas to Gas: Fundamentals of Static Headspace Extraction-Gas Chromatography

LCGC International
Headspace sampling is one of the staple sample introduction techniques for gas chromatography (GC) because it involves the injection of samples already in the vapor phase into the instrument. In this installment, we discuss the fundamentals of headspace extraction, including static versus dynamic extraction, establishing equilibrium in the vial ...
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Shale Gas Extraction

2023
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Shale Gas Extraction And Treatment Of Shale Gas Wastewater

2018
Günümüzde kaya gazı yeni birenerji kaynağı olarak ele alınmakta ve kaya gazı ekstraksiyonuna yönelikaraştırmalar tüm dünyada hız kesmeden devam etmektedir. Düşey ve yatay sondajınbirlikte kullanıldığı ekstraksiyon çalışmalarında kaya gazının açığaçıkarılabilmesi için kaya formlarına yüksek hacimlerde basınçlı su enjekteedilmektedir.
SARI ERKAN, Hanife, BAKARAKİ TURAN, Nouha, ÖNKAL ENGİN, Güleda   +2 more
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