Results 21 to 30 of about 439,301 (345)

Resgatando um método eficiente para determinação do ponto de ebulição de substâncias orgânicas: percolador versus Siwoloboff

Química Nova, 2014
The aim of this paper was to revive the accurate determination of the boiling point of organic compounds using the percolator technique developed in the 1960s. Although this method is simple, fast and efficient it is omitted from current textbooks.
Flaviana Rodrigues Fintelman Dias, Wanderson Amaral da Silva, Vinícius Rangel Campos, Anna Claudia Cunha, Vitor Francisco Ferreira, Nelson Ângelo de Souza   +5 more
doaj   +1 more source

MRI monitoring of lesions created at temperature below the boiling point and of lesions created above the boiling point using high intensity focused ultrasound [PDF]

, 2010
Magnetic Resonance Imaging (MRI) was utilized to monitor lesions created at temperature below the boiling point and lesions created at temperature above the boiling point using High Intensity Focused Ultrasound (HIFU) in freshly excised kidney, liver and
Couppis, A., Damianou, C., Hadjisavvas, V., Ioannides, K., Iosif, D., Kyriacou, P. A., Mylonas, N.   +6 more
core   +1 more source

PREDICTING THE BOILING POINT OF PCDD/Fs BY THE QSPR METHOD BASED ON THE MOLECULAR DISTANCE-EDGE VECTOR INDEX

Química Nova, 2015
The quantitative structure property relationship (QSPR) for the boiling point (Tb) of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) was investigated.
Long Jiao, Xiaofei Wang, Shan Bing, Zhiwei Xue, Hua Li   +4 more
doaj   +1 more source

Drop impact on superheated surfaces [PDF]

, 2011
At impact of a liquid droplet on a smooth surface heated above the liquid's boiling point, the droplet either immediately boils when it contacts the surfaces (``contact boiling''), or without any surface contact forms a Leidenfrost vapor layer towards ...
Andrea Prosperetti, Chao Sun, Detlef Lohse, Hendrik J. J. Staat, M. Rein, Tuan Tran   +5 more
core   +3 more sources

Mathematical Properties of a Novel Graph-Theoretic Irregularity Index with Potential Applicability in QSPR Modeling

Mathematics, 2022
Irregularity indices are graph-theoretic parameters designed to quantify the irregularity in a graph. In this paper, we study the practical applicability of irregularity indices in QSPR modeling of the physicochemical and quantum-theoretic properties of ...
Sakander Hayat, Amina Arif, Laiq Zada, Asad Khan, Yubin Zhong   +4 more
doaj   +1 more source

Boiling Point Measurement of Gamma-valerolactone/water and Gamma-valeroctone/ethanol Mixtures at Different Concentrations and Pressures

Chemical Engineering Transactions, 2019
Gamma-valerolactone (GVL) is used in green technology to produce chemicals and biofuels. Separation of GVL from mixtures within a process is a recurring challenge in chemical plants.
Valter Nunes Trindade-Junior, Marcos Corazza, Edson Antonio Da Silva, Reginaldo Guirardello   +3 more
doaj   +1 more source

Experimental investigation on the evolution of bubble behavior in subcooled flow boiling in narrow rectangular channel based on bubble tracking algorithm

Frontiers in Energy Research, 2023
The nucleate subcooled boiling is an efficient heat transfer form and plays an important role in many cooling applications. The size and distribution of bubbles in subcooled boiling have considerable influence on boiling heat transfer.
Kezhong Lv, Linglan Zhou, Yong Chen, Hong Gao   +3 more
doaj   +1 more source

Equation of state and phase transitions in asymmetric nuclear matter [PDF]

, 2001
The structure of the 3-dimension pressure-temperature-asymmetry surface of equilibrium of the asymmetric nuclear matter is studied within the thermal Thomas-Fermi approximation.
A. I. Sanzhur, A. Lejeune, D. Bandyopadhyay, D. Bandyopadhyay, D. Q. Lamb, G. Sauer, H. Jaqaman, H. Müller, J. Cibor, J. Cugnon, J. M. Lattimer, J. M. Lattimer, L. D. Landau, M. Abd-Alla, M. Barranco, M. Brack, S. A. Firin, S. J. Lee, S. Levit, S. Shlomo, V. M. Kolomietz, W. A. Küpper   +21 more
core   +2 more sources

Visualization and Sound Measurements of Vibration Plate in a Boiling Bubble Resonator

Fluids, 2021
We developed a boiling bubble resonator (BBR) as a new heat transfer enhancement method aided by boiling bubbles. The BBR is a passive device that operates under its own bubble pressure and therefore does not require an electrical source.
Junichiro Ono, Noriyuki Unno, Kazuhisa Yuki, Jun Taniguchi, Shin-ichi Satake   +4 more
doaj   +1 more source

A hybrid molecular dynamics–machine learning framework for boiling point estimation in aromatic fluids

Case Studies in Thermal Engineering
Precise estimation of boiling points in organic fluids is critical for designing efficient and safe thermal systems. This study presents a hybrid molecular dynamic (MD)–machine learning (ML) framework for boiling point estimation in two representative ...
Amirali Shateri, Zhiyin Yang, Nasser Sherkat, Jianfei Xie   +3 more
doaj   +1 more source