Results 101 to 110 of about 1,482,034 (300)
Modeling Study of the Low-Temperature Oxidation of Large Methyl Esters [PDF]
arXiv, 2009 This study focuses on the automatic generation by the software EXGAS of kinetic models for the oxidation of large methyl esters using a single set of kinetic parameters. The obtained models allow to well reproduce the oxidation of n-decane / methyl palmitate mixture in a jet-stirred reactor. This paper also presents the construction and a comparison of
arxiv
Pioneering Metal‐Free Late‐Stage C−H Functionalization Using Acridinium Salt Photocatalysis
Chemistry – A European Journal, Volume 30, Issue 67, December 2, 2024.Organic dyes are powerful photocatalysts in organic transformations due to their availability, adaptable absorption, and diverse structures. Acridinium‐based organo‐photocatalysts, notable for visible light responsiveness, efficiently functionalize inert C−H bonds under mild conditions without transition metals.
Shyamal Kanti Bera, Andrea Porcheddu
wiley +1 more source
Prediction of the Yield of Enzymatic Synthesis of Betulinic Acid Ester Using Artificial Neural Networks and Support Vector Machine [PDF]
arXiv, 2015 3\b{eta}-O-phthalic ester of betulinic acid is of great importance in anticancer studies. However, the optimization of its reaction conditions requires a large number of experimental works. To simplify the number of times of optimization in experimental works, here, we use artificial neural network (ANN) and support vector machine (SVM) models for the ...
arxiv
Blind Facial Image Quality Enhancement using Non-Rigid Semantic Patches [PDF]
, 2016 We propose to combine semantic data and registration algorithms to solve various image processing problems such as denoising, super-resolution and color-correction. It is shown how such new techniques can achieve significant quality enhancement, both visually and quantitatively, in the case of facial image enhancement.
arxiv +1 more source
Heparinase Immobilization Characterization and Optimization a [PDF]
, 1988 Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/73755/1/j.1749-6632.1988.tb25880.x ...
Bernstein, Howard +2 more
core +1 more source
Recent Advances and Prospects in High‐Performance Bio‐Based Phthalonitrile Resins
Advanced Functional Materials, Volume 34, Issue 51, December 16, 2024.Partially bio‐based phthalonitrile resins, originally developed as heat‐resistant materials like their fossil‐based counterparts, can be explored for broader applications due to their attractive performance characteristics. While challenges remain, particularly in processability and thermal performance, recent advancements in molecular design and green
Boris A. Bulgakov, Ulrich S. Schubert
wiley +1 more source
Journal of Aeronautical Materials, 2018 The modified cyanate ester resin(CE) which can be applied stably in the cryogenic environment was prepared by using phenoxy resin(PKHH) and high purity epoxy resin(EP) through the method of melting prepolymerization.
ZHANG Haiqi +6 more
doaj +1 more source
Orientational and steric effects in linear alkanoates + N-Alkane mixtures [PDF]
Fluid Phase Equilib. 578 (2024) 114012The CH$_3$(CH$_2$)$_u$COO(CH$_3$)$_v$CH$_3$ + n-alkane mixtures have been investigated on the basis of an experimental database containing effective dipole moments of esters, and excess molar functions of the systems: enthalpies ($H_{\text{m}}^{\text{E}}$), volumes ($V_{\text{m}}^{\text{E}}$), isobaric heat capacities ($C_{p\text{m}}^{\text{E}}$) and ...
arxiv +1 more source
An IR study of pure and ion irradiated frozen formamide [PDF]
, 2006 Context. The chemical evolution of formamide (HCONH2), a molecule of astrobiological interest that has been tentatively identified in interstellar ices and in cometary coma, has been studied in laboratory under simulated astrophysical conditions such as ion irradiation at low temperature. Aims.
arxiv +1 more source
Characterization of New TPS Resins [PDF]
Ablative thermal protection systems are commonly used as protection from the intense heat during re-entry of a space vehicle and have been used successfully on many missions including Stardust and Mars Science Laboratory both of which used PICA a ...
Boghozian, T. +2 more
core +1 more source