Results 31 to 40 of about 166,145,672 (253)

PREDICTION OF PHYSICOCHEMICAL PROPERTIES BY ARTIFICIAL NEURAL NETS

Avances en Ciencias e Ingeniería, 2023
In this study, we employed the Artificial Neural Network-Group COSMO sigma profile method to estimate critical pressure, critical temperature, enthalpy of fusion, and melting temperature of pure chemical compounds.
Arturo Alvarez, Víctor H. Alvarez
doaj  

New insight into the melting process of PA 6 fibers: Determining tension-induced changes of enthalpy by HTA-assisted DSC analysis

Polymer Testing, 2023
Differential scanning calorimetry (DSC) measurements of fibers are affected from insulation effects originating from the specific specimen geometry with poor contact between the material sample and the crucible bottom.
Stefan Oberparleiter, Roman Lackner
doaj   +1 more source

Heat capacity and enthalpy of fusion of penconazole (C13H15C12N3)

, 2004
Low-temperature heat capacities of penconazole (C13H15Cl2N3) were precisely measured with an automated adiabatic calorimeter over the temperature rang from 78 to 364 K. The sample was observed to melt at 332.38 +/- 0.06 K.
Sun, LX, Wang, MH, Ma, HX, Tan, ZC, Song, JR, Di, YY, Sun, XH   +6 more
core   +1 more source

Heat capacity and enthalpy of fusion of pyrimethanil laurate (C24H37N3O2)

, 2004
Low-temperature heat capacities of pyrimethanil laurate (C24H37N3O2) were precisely measured with an automated adiabatic calorimeter over the temperature range between T = 78 K and T = 340 K. The sample was observed to melt at (321.52 +/- 0.04) K.
Liu, YF, Wang, HF, Zhi-Cheng Tan, Yuan-Fa Liu, You-Ying Di, Wang, MH, Mei-Han Wang, Tan, ZC, Hui-Fang Wang, Di, YY, Xiao-Hong Sun, Sun, XH   +11 more
core   +1 more source

A Computationally Efficient Multi-Scale Thermal Modelling Approach for PBF-LB/M Based on the Enthalpy Method

Metals, 2022
Laser-Based Powder Bed Fusion is one of the most widely used additive manufacturing processes, mainly due to its high-quality output. End users would greatly benefit from a virtual simulation of the process; however, the modelling of the process is very ...
Panagiotis Stavropoulos, Georgios Pastras, Thanassis Souflas, Konstantinos Tzimanis, Harry Bikas   +4 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Fusion of secretory vesicles isolated from rat liver [PDF]

, 1978
Secretory vesicles isolated from rat liver were found to fuse after exposure to Ca2+. Vescle fusion is characterized by the occurrence of twinned vesicles with a continuous cleavage plane between two vesicles in freeze-fracture electron microscopy.
Dahl, Gerhard, Dahl, G., Gratzl, Manfred   +2 more
core   +1 more source

Thermal Characterization and Heat Capacities of Seven Polyphenols

Molecules
Polyphenolic compounds are key elements in sectors such as pharmaceutics, cosmetics and food; thus, their physicochemical characterization is a vital task.
Iván Montenegro, Carmen Pérez, Begoña González, Ángeles Domínguez, Elena Gómez   +4 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source