Results 41 to 50 of about 155,194 (319)

The Centaurus A Northern Middle Lobe as a Buoyant Bubble [PDF]

, 2001
We model the northern middle radio lobe of Centaurus A (NGC 5128) as a buoyant bubble of plasma deposited by an intermittently active jet. The extent of the rise of the bubble and its morphology imply that the ratio of its density to that of the ...
Bicknell, Geoffrey V., Saxton, Curtis J., Sutherland, Ralph S.   +2 more
core   +3 more sources

Calibration of Numerical Simulation Methods for Underwater Explosion with Centrifugal Tests

Shock and Vibration, 2019
The centrifugal underwater explosion tests and corresponding numerical simulations were carried out to study the laws of shock wave and bubble pulsation. A semiempirical method to determine JWL state equation parameters was given.
Qiusheng Wang, Shicong Liu, Haoran Lou
doaj   +1 more source

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

FEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso, Jaime Hiniesta‐Valero, Alejandra Guerra‐Castellano, Miguel A. De la Rosa, Irene Díaz‐Moreno   +4 more
wiley   +1 more source

Thermal performance enhancement in a double tube heat exchanger using combination of bubble injection and helical coiled wire insert

Case Studies in Thermal Engineering, 2023
In this experimental study, a novel approach combining a helical coiled wire (HCW) turbulator and bubble injection (BI) method has been employed to synergistically improve the heat transfer efficiency of double tube heat exchanger. The thermal-frictional
Ning Wang, S.P. Ghoushchi, Kamal Sharma, Ibrahim Elbadawy, Abir Mouldi, Hassen Loukil, Ahmed Farouk Deifalla   +6 more
doaj   +1 more source

An Alternative Method to Deduce Bubble Dynamics in Single Bubble Sonoluminescence Experiments [PDF]

, 2002
In this paper we present an experimental approach that allows to deduce the important dynamical parameters of single sonoluminescing bubbles (pressure amplitude, ambient radius, radius-time curve) The technique is based on a few previously confirmed ...
A. Eller, A. Prosperetti, A. Prosperetti, A. Prosperetti, A. Prosperetti, B. Gompf, B.D. Storey, B.P. Barber, B.P. Barber, B.P. Barber, B.P. Barber, C.C. Wu, D. Lohse, D. Lohse, D.F. Gaitan, G. Simon, G. Simon, G. Simon, G. Vacca, G.A. Delgadino, J. Holzfuss, J.A. Ketterling, J.A. Ketterling, J.A. Ketterling, K. Yasui, K. Yasui, K.R. Weninger, K.R. Weninger, M. T. Levinsen, M.-C. Chu, M.M. Fyrillas, M.P. Brenner, M.P. Brenner, M.P. Brenner, P. Smereka, P.H. Roberts, R. Hiller, R. Löfstedt, R. Pecha, R. Pecha, R.G. Holt, R.G. Holt, S. Hilgenfeldt, S. Hilgenfeldt, S.J. Putterman, T.J. Matula, T.J. Matula, T.J. Matula, U. Parlitz, U.H. Augsdörfer, W. Lauterborn, W. Lauterborn, W.C. Moss, W.J. Lentz, Y.J. Tian   +54 more
core   +3 more sources

Laboratory‐Scale Procedure for Evaluating the Flux Efficiency on Melt Cleanliness and Tensile Properties of Recycled Aluminum Alloys

Advanced Engineering Materials, EarlyView.
A laboratory‐scale procedure is developed to evaluate the efficiency of melt‐cleaning and drossing fluxes during aluminium alloy recycling, studying their effects on melt cleanliness and tensile properties of secondary foundry alloys. This work provides a practical tool for foundries and aluminium refiners to assess the efficiency of salt fluxes in ...
Veronica Milani, Giulio Timelli
wiley   +1 more source

A Numerical Simulation of the Underwater Supersonic Gas Jet Evolution and Its Induced Noise

Applied Sciences, 2023
To explore the complex flow field and noise characteristics of underwater high-speed gas jets, the mixture multiphase model, large eddy simulation method, and Ffowcs Williams–Hawking (FW–H) acoustic model were used for simulations, and the numerical ...
Wei Yu, Baoshou Wang, Chun Zhang
doaj   +1 more source

Evolution of an elliptical bubble in an accelerating extensional flow [PDF]

, 2008
Mathematical models that describe the dynamical behavior of a thin gas bubble embedded in a glass fiber during a fiber drawing process have been discussed and analyzed.
Ahmed, S., Breward, C., Cumberbatch, E., Cummings, L. J., Fosse, E., Gewecke, N., Guevara, A., Please, C., Richardson, G., Schwendeman, D. W., Tilley, B. S., Xu, K.   +11 more
core  

A study of nucleate boiling and critical heat flux with EHD enhancement [PDF]

, 2007
The paper describes results from an experimental and theoretical study of the effect of an electric field on nucleate boiling and the critical heat flux (CHF) in pool boiling of R123 at atmospheric pressure on a horizontal wall with a smooth surface. Two
Hristov, Y, Karayiannis, TG, Kenning, DBR, Sefiane, K, Zhao, D   +4 more
core   +1 more source

Optimizing Laser Ablation of Stainless Steels for Volume Removal and Surface Quality Using Burst of Pulses

Advanced Engineering Materials, EarlyView.
This study explores the ablation efficiency and surface quality of laser‐treated stainless steel alloys (AISI 304, AISI 420, and AISI 316Ti) using an ultrashort pulsed laser and varying burst parameters (MHz, GHz, and Bi‐burst). Both ablation rates and surface quality parameters are determined, including isotropy surface roughness values, highlighting ...
Dirk Obergfell, Bahman Azarhoushang, Andrés Fabián Lasagni   +2 more
wiley   +1 more source