Results 21 to 30 of about 115,557 (199)

Morphological and Compositional Analysis on Thermal Deposition of Supercritical Aviation Kerosene in Micro Channels

open access: yesMolecules, 2023
The integration of active cooling systems in super or hypersonic aircraft using endothermic hydrocarbon fuels is considered an effective way to relieve the thermal management issues caused by overheating. When the temperature of aviation kerosene exceeds
Ao Sun   +5 more
doaj   +1 more source

EXTRACTION OF HERBAL COMPONENTS – THE CASE FOR SUPERCRITICAL FLUID EXTRACTION [PDF]

open access: yes, 2008
Malaysia is rich in heritage of sources for herbs and medicinal plants. The increasing public awareness of the health, environment and safety hazards associated with the use of organic solvents in herbals processing and the possible solvent ...
Hasan, Masitah, Kumoro, Andri Cahyo
core   +1 more source

Solubility examination of palm kernel oil in supercritical CO2 and its correlation with solvent density based model [PDF]

open access: yes, 2012
Application of supercritical carbon dioxide (SC-CO2) to vegetable oil extraction became an attractive technique due to its high solubility, short extraction time and simple purification.
Setianto, Wahyu Bahari   +2 more
core   +4 more sources

Transesterification of Vegetables oil using Sub-and Supercritical Methanol [PDF]

open access: yes, 2012
A benign process, non catalytic transesterification in sub and supercritical methanol method was used to prepare biodiesel from vegetables oil. The experiment was carried out in batch type reactor (8.8 ml capacity, stainless steel, AKICO, JAPAN) by ...
W, Wahyudiono   +7 more
core   +1 more source

Supercritical Elliptic Equations [PDF]

open access: yesAdvanced Nonlinear Studies, 2012
Abstract For an elliptic model equation with supercritical power non-linearity we give a complete description of radial solutions and discuss self-similar blow-up solutions.
Rupflin, M, Struwe, M
openaire   +3 more sources

SUPERCRITICAL CARBON DIOXIDE EXTRACTION OF ANDROGRAPHOLIDE FROM ANDROGRAPHIS PANICULATA LEAVES USING METHANOL AS COSOLVENT [PDF]

open access: yes, 2006
The optimisation and design of any separation processes, such as the extraction of bio molecules from their natural resources require mathematical modelling.
Kumoro, A.C., Hasan, M.
core   +1 more source

Supercritical regime for the kissing polynomials [PDF]

open access: yesJournal of Approximation Theory, 2020
We study a family of polynomials which are orthogonal with respect to the varying, highly oscillatory complex weight function $e^{niλz}$ on $[-1,1]$, where $λ$ is a positive parameter. This family of polynomials has appeared in the literature recently in connection with complex quadrature rules, and their asymptotics have been previously studied when ...
Andrew F. Celsus, Guilherme L. F. Silva
openaire   +3 more sources

Electrodeposition from supercritical fluids

open access: yes, 2014
Recent studies have shown that it is possible to electrodeposit a range of materials, such as Cu, Ag and Ge, from various supercritical fluids, including hydrofluorocarbons and mixtures of CO2 with suitable co-solvents. In this perspective we discuss the
George, M.W.   +8 more
core   +1 more source

Reactions of Supercritical Water and Supercritical Methanol with Benzaldehyde.

open access: yesJournal of The Japan Petroleum Institute, 1996
超臨界水および超臨界メタノールとベンズアルデヒドの反応実験を553Kから693Kの温度範囲で行い, 得られた反応生成物の収率の経時変化より反応経路を推定した。超臨界水とベンズアルデヒドの反応ではベンゼンが主生成物であり, これはベンズアルデヒドの熱分解によって生成したものと思われる。また, 副生成物としては安息香酸とベンジルアルコールが検出された。これらの副生成物はベンズアルデヒドと水との反応によって生成した水和物とベンズアルデヒドとの Cannizzaro タイプの不均化反応によって生成すると考えられる。また, 超臨界メタノールとベンズアルデヒドとの反応では, 主生成物はベンジルアルコールであり, 副生成物としてジメチルアセタール, ベンゼン, 安息香酸メチルが得られた ...
YOKOYAMA, Chiaki   +3 more
openaire   +2 more sources

MODELLING OF SUPERCRITICAL CARBON DIOXIDE EXTRACTION OF ANDROGRAPHOLIDE FROM ANDROGRAPHIS PANICULATA LEAVES BY EMPLOYING INTEGRAL DESORPTION CONCEPT [PDF]

open access: yes, 2006
Mathematical formulation is necessary for the optimisation and scale-up of a separation unit such as the extraction of biomolecules from their natural resources.
Kumoro, A.C., Hasan, M.
core   +2 more sources

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