Results 31 to 40 of about 267,431 (292)

Thermophysical properties and oxygen transport in (Thx,Pu1-x)O2 [PDF]

, 2016
Using Molecular Dynamics, this paper investigates the thermophysical properties and oxygen transport of (Thx,Pu1−x)O2 (0 ≤ x ≤ 1) between 300-3500 K.
Cooper, MWD, Galvin, C, Grimes, RW, Rushton, MJD   +3 more
core   +2 more sources

Transient behavior of ablation and swelling for C/C composite and HfC-coated C/C composite in an arc-heated wind tunnel

Case Studies in Thermal Engineering
This study investigated and modeled the transient behavior of surface recession, defined as the difference between ablative length and swelling length, for thermal protection materials within a high-enthalpy flow.
Moon Won Song, Philyong Oh, Jong Geun Bae, Ho Seok Kim, Se Youn Moon   +4 more
doaj   +1 more source

Clean energy pipeline energy storage system and its economy

Case Studies in Thermal Engineering
The economic problem of a clean energy heating system under a peak and valley electricity pricing system is investigated, and a pipe network energy storage system is correspondingly proposed to solve this problem.
Ronghua Wu, Jiyou Lin, Hao Yu, Yuanyuan Sun, Long Xu, Xiaona Yu   +5 more
doaj   +1 more source

Potentiometric Determination of Acidity Constants of Some Synthesized Organic Compounds in Organic-Water Media [PDF]

Journal of Sciences, Islamic Republic of Iran, 2016
The acidity constants of some synthesized protonated pyrazolo quinazoline compounds were determined potentiometrically at ionic strength of 0.1 M in DMF: water (60:40 v/v) system at different temperatures (298.15 K to 318.15 K).
Sh. Baluja, P. Ramavat, K. Nandha
doaj  

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Evolution of structural ({\alpha}) relaxation-time anomalies in GexSe1-x Chalcogenide glasses

, 2015
We examine enthalpy relaxation across the chalcogenide glass series GexSe1-x, prepared over close-by compositions using conventional melt-quenching technique. We estimate the timescale {\tau}(Tg) characterizing enthalpic relaxation near the kinetic glass
Awasthi, A. M., Sampath, Sujatha, Sharma, Deepak   +2 more
core   +1 more source

Pore size distribution and supercritical hydrogen adsorption in activated carbon fibers [PDF]

, 2009
Pore size distributions (PSD) and supercritical H_2 isotherms have been measured for two activated carbon fiber (ACF) samples. The surface area and the PSD both depend on the degree of activation to which the ACF has been exposed.
Ahn, C. C., Fultz, B., Kabbour, H., Purewal, J. J., Vajo, J. J.   +4 more
core   +2 more sources

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

New method for transient cold wall heat flux measurements for unlimited exposure times

Scientific Reports
This paper presents a new method to measure high cold wall surface heat fluxes temporally resolved. It is based on a system identification approach, the so-called Non-Integer System Identification (NISI) method, which allows to correlate the surface heat
Fabian Hufgard, Christian Duernhofer, Clemens Mueller, Stefan Loehle   +3 more
doaj   +1 more source

Formation and Dissociation of Methane Hydrates from Seawater in Consolidated Sand: Mimicking Methane Hydrate Dynamics beneath the Seafloor

Energies, 2013
Methane hydrate formation and dissociation kinetics were investigated in seawater-saturated consolidated Ottawa sand-pack under sub-seafloor conditions to study the influence of effective pressure on formation and dissociation kinetics. To simulate a sub-
Prasad B. Kerkar, Kristine Horvat, Devinder Mahajan, Keith W. Jones   +3 more
doaj   +1 more source