Results 21 to 30 of about 102,133 (316)

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   +2 more sources

Analysis of an Elasto-Hydrodynamic Seal by Using the Reynolds Equation

open access: yesApplied Sciences, 2022
This paper reports numerical studies of an Elasto-Hydrodynamic (EHD) seal, which is being developed for supercritical CO2 (sCO2) turbomachinery applications. Current sCO2 turbomachinery suffers from high leakage rates, which is creating a major roadblock
Sevki Cesmeci   +5 more
doaj   +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

Total Roman Domination Edge-Supercritical and Edge-Removal-Supercritical Graphs [PDF]

open access: yesAustralas. J Comb., 2020
20 pages, 2 figures.
Christina M. Mynhardt, S. E. A. Ogden
openaire   +3 more sources

Using Static Culture Method to Increase the Production of Acetobacter Xylinum Bacterial Cellulose

open access: yesJournal of Natural Fibers
Bacterial cellulose is a natural polymer, usually produced through synthetic (chemically defined) or natural media. However, the current methods of bacterial cellulose production are not ideal because of their low productivity and large number of ...
Jialing Chen   +4 more
doaj   +1 more source

Research on Closed Cycle Pipe Blowing Technology of 5 MW Supercritical Carbon Dioxide Unit Boiler

open access: yes发电技术, 2023
In order to explore the steam pipe blowing process suitable for new supercritical carbon dioxide boiler, taking a 5 MW supercritical carbon dioxide circulating power generation test unit as the research object, the characteristics of main and auxiliary ...
WANG Lin
doaj   +1 more source

Supercritical Synthesis of Biodiesel [PDF]

open access: yesMolecules, 2012
The synthesis of biodiesel fuel from lipids (vegetable oils and animal fats) has gained in importance as a possible source of renewable non-fossil energy in an attempt to reduce our dependence on petroleum-based fuels. The catalytic processes commonly used for the production of biodiesel fuel present a series of limitations and drawbacks, among them ...
Bernal, Juana M.   +8 more
openaire   +4 more sources

Supercritical Fluid Extraction [PDF]

open access: yes, 2014
Peer ...
Mendiola, J. A.   +3 more
openaire   +3 more sources

Understanding Sub and Supercritical Cryogenic Fluid Dynamics in Conditions Relevant to Novel Ultra Low Emission Engines

open access: yesEnergies, 2020
In this paper we provide insight into the thermophysical properties and the dynamics of cryogenic jets. The motivation of the work is to optimise the use of cryogenic fluids in novel ultra low emission engines.
Jaya Madana Gopal   +5 more
doaj   +1 more source

Bifurcation analysis of a three dimensional system

open access: yesJournal of Hebei University of Science and Technology, 2018
In order to enrich the stability and bifurcation theory of the three dimensional chaotic systems, taking a quadratic truncate unfolding system with the triple singularity equilibrium as the research subject, the existence of the equilibrium, the ...
Yongwen WANG, Zhiqin QIAO, Yakui XUE
doaj   +1 more source

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