Results 1 to 10 of about 40,153 (337)

Application of Solution Calorimetry to Determining the Fusion Enthalpy of an Arylaliphatic Compound at 298.15 K: n-Octadecanophenone [PDF]

open access: diamondLiquids, 2022
Evaluating the temperature dependence of the fusion enthalpy is no trivial task, as any compound melts at a unique temperature. At the same time, knowledge of the fusion enthalpies under some common conditions, particularly at the reference temperature ...
Mikhail I. Yagofarov   +3 more
doaj   +2 more sources

Calculation of Five Thermodynamic Molecular Descriptors by Means of a General Computer Algorithm Based on the Group-Additivity Method: Standard Enthalpies of Vaporization, Sublimation and Solvation, and Entropy of Fusion of Ordinary Organic Molecules and Total Phase-Change Entropy of Liquid Crystals [PDF]

open access: goldMolecules, 2017
The calculation of the standard enthalpies of vaporization, sublimation and solvation of organic molecules is presented using a common computer algorithm on the basis of a group-additivity method.
Rudolf Naef, William E. Acree
doaj   +4 more sources

Polymorphism and Phase-Transition Thermodynamic Properties of Phenazone (Antipyrine) [PDF]

open access: yesMolecules
In this work, detailed information on the phase-transition thermodynamics of the analgesic and antipyretic drug phenazone, also known as antipyrine, is reported. It was found that the compound forms two polymorphs. Fusion thermodynamics of both forms was
Dmitrii N. Bolmatenkov   +5 more
doaj   +2 more sources

Enthalpies of Fusion of Some Binary Organic Mixed Crystals.

open access: bronzeNIPPON KAGAKU KAISHI, 1996
混晶を形成する二成分系有機化合物のナフタレン-2-ナフトール, trans-アゾベソゼン-trans-スチルベン(以下単にアゾベンゼン,スチルベンと記す。),アゾベンゼン-ジフェニルアセチレン,およびアゾベンゼン-ビベンジルの 4 種類の系について,組成と融解エソタルピーとの関係を示差走査熱量計(DSC)によって測定し,相図との関係を検討した。いずれの系でも得られた融解エンタルピーの値は,混晶が理想溶液を形成すると仮定して求めた理論値に比較し,かなり小さい値であった。混晶の融点がすべて,各純粋成分の融点の中間の値をとる,いわゆる, Roozeboom I 型の相図を示すナフタレン-2-ナフトールおよびアゾベンゼンースルベチン系では,それぞれの系で 2-ナフトールのモル分率が約 0.6 ...
Hidemoto Nojima
openaire   +3 more sources

Temporal Fusion Transformer and transfer learning techniques applied to predict steam enthalpy with limited data in geothermal power plants

open access: goldMechanical Engineering Journal
Japanese geothermal power plants are expected to be significant renewable energy sources owing to the abundance of geothermal sources in Japan. The plant capacity factor in geothermal power plants is low.
Hodaka MATSUZAKI   +2 more
doaj   +3 more sources

Thermal Properties of Polyurethanes. Enthalpies and Entropies of Fusion [PDF]

open access: bronzePolymer Journal, 1970
Enthalpies and entropies of fusion have been determined for two series of semicrystalline polyurethanes. The H series is based on 1,6-hexamethylene diisocyanate and various α, ω-diols containing from 2 to 10 methylene units. The DP series is based on 4,4′-methylene diphenyl diisocyanate and various α, ω-diols containing from 2 to 10 methylene units ...
Tisato Kajiyama, William J MacKnight
openaire   +2 more sources

The Enthalpy of Fusion of Magnesium Chloride. [PDF]

open access: bronzeActa Chemica Scandinavica, 1973
Jan Lützow Holm   +5 more
openaire   +2 more sources

Thermal Characterization and Heat Capacities of Seven Polyphenols [PDF]

open access: yesMolecules
Polyphenolic compounds are key elements in sectors such as pharmaceutics, cosmetics and food; thus, their physicochemical characterization is a vital task.
Iván Montenegro   +4 more
doaj   +2 more sources

The Enthalpy of Fusion of Samarium Trifluoride. [PDF]

open access: bronzeActa Chemica Scandinavica, 1972
Jan Lützow Holm   +4 more
openaire   +2 more sources

The Influence of the Processing Conditions on Changes in Physical and Structural Properties of Injection Moulded Parts Made of Polypropylene [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
The injection moulding conditions may change the degree of crystallinity of the plastic to some extent, which affects the mechanical properties such as tensile strength and hardness. Moreover, the cooling conditions of the moulded parts may contribute to
P. Palutkiewicz, A. Kalwik, T. Jaruga
doaj   +1 more source

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