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16. DISCUSSION ON THE PAPER: VORTEX INSTABILITY OF MIXED CONVECTION BOUNDARY LAYER FLOW ADJACENT TO A NON-ISOTHERMAL HORIZONTAL SURFACE IN A POROUS MEDIUM WITH VARIABLE PERMEABILITY

Author

Ioan Pop and D. Andrew S. Rees

Subjects
Convection, Materials science, Natural convection, Meteorology, Mechanical Engineering, Biomedical Engineering, Mechanics, Condensed Matter Physics, Vortex, Boundary layer, Mechanics of Materials, Combined forced and natural convection, Modeling and Simulation, General Materials Science, Porous medium, Rayleigh–Bénard convection, Convection cell
Abstract

In this Discussion we shall reflect on various aspects of the recently published paper by Elaiw and Ibrahim (2008). Their paper considers the onset of convective instabilities of a mixed convection boundary layer induced by the combined presence of a hot horizontal surface in an unbounded porous medium and an externally-imposed uniform horizontal forced convective flow. These authors also adopt a power law variation in the surface temperature, and allow for the effects of nonuniform porosity caused by inefficient packing of the porous medium near to the horizontal surface. The primary aim of the present Discussion is to discuss the theoretical foundations of the analysis of Elaiw and Ibrahim (2008) in order to clarify them unambiguously.

Published
2010

19. Discussion of the Paper 'Experimental Investigation into Concentration-Dependent Chloride Diffusivity in Glass Beads and Fine Sand' by K. Prabhakaran Nair, A. Praveen, and S. Chandrakaran

Author

Kristian Krabbenhoft, Andrei V. Lyamin, Olivier Buzzi, and khaled Al-Ttarawneh

Subjects
Convection, Materials science, Mechanical Engineering, Biomedical Engineering, Mechanics, Condensed Matter Physics, Thermal diffusivity, Power law, Chloride, Boundary layer, Mechanics of Materials, Combined forced and natural convection, Modeling and Simulation, medicine, General Materials Science, Porous medium, Porosity, medicine.drug
Abstract

In this Discussion we shall reflect on various aspects of the recently published paper by Elaiw and Ibrahim (2008). Their paper considers hie onset of convective instabilities of a mixed convection boundary layer induced by the combined presence of a hot horizontal surface in an unbounded porous medium and an externally imposed uniform horizontal forced convective flow. These authors also adopt a power law variation in the surface temperature and allow for the effects of nonuniform porosity caused by inefficient packing of the porous medium near the horizontal surface. The primary aim of the present Discussion is to discuss the theoretical foundations of the analysis of Elaiw and Ibrahim (2008) in order to clarify them unambiguously.

Published
2009

25. The paper presents results of measuring radar cross section (RCS) vs frequency dependences for wire-grid, lamellar and bulk models of small-size radar targets at decameter wavelengths in the case of ground-wave sounding. It has been shown that the RCS may

Author

V. I. Lutsenko and Stanislav I. Khomenko

Subjects
Wire grid, Radar cross-section, business.industry, law.invention, Depth sounding, Wavelength, Optics, law, Surface wave, Lamellar structure, Electrical and Electronic Engineering, Radar, business, Decametre, Geology, Remote sensing
Published
1997

43. Correction to the paper 'Structure Recovery of Systems of Probabilistic Dependencies from Data. Apparatus of Genotype of Variables', 'Journal of Automation and Information Sciences', 2003, No. 4

Author

Alexander S. Balabanov

Subjects
Structure (mathematical logic), Information retrieval, business.industry, Computer science, Probabilistic logic, computer.software_genre, Automation, Information science, Control and Systems Engineering, Data mining, business, computer, Software, Information Systems
Published
2004

44. NOZZLELESS ELECTROSPUN NANOFIBERS FOR REMEDIATION OF TEXTILE WASTEWATER

Author

Hosam El-Sayed, Marwa Abou Taleb, and Salwa Mowafi

Subjects
Materials science, Textile, Wastewater, Mechanics of Materials, business.industry, Environmental remediation, Nanofiber, Nozzle, General Materials Science, Condensed Matter Physics, Pulp and paper industry, business
Published
2022

47. PROCESS OPTIMIZATION AND CHARACTERIZATION OF MANILA TAMARIND SEED OIL EXTRACTED BY THE SOXHLET METHOD

Author

Vinayagam Nadanakumar, Ravishankar Sathyamurthy, N. Vedaraman, Athikesavan Muthu Manokar, K. Karuppasamy, P. Vijayabalan, Sriharikota Chandra Sekhar, and Ammar H. Elshiekh

Subjects
Automotive Engineering, Energy Engineering and Power Technology, Process optimization, Response surface methodology, Tamarind seed, Solvent extraction, Pulp and paper industry, Pollution, Box–Behnken design, Mathematics
Published
2021

49. FRACTIONAL DISTILLATION OF PYROLYSIS OIL

Author

Sergey M. Leschev and Tatsiana Henarava

Subjects
Fractional distillation, chemistry.chemical_compound, Materials science, chemistry, Pyrolysis oil, General Medicine, Pulp and paper industry
Published
2021