Results 241 to 250 of about 18,170 (301)

Perceptions of yellow fever emergency mass vaccinations among vulnerable groups in Uganda: A qualitative study. [PDF]

PLoS Negl Trop Dis
Huebl L, Nnyombi A, Kihumuro A, Lukwago D, Walakira E, Kutalek R.   +5 more
europepmc   +1 more source

Numerical solution and experimental investigation for hydro-acoustic analysis and noise reduction assessment of ship ducted propeller. [PDF]

Heliyon
Alizadeh V, Abbaspour M, Mohseni Arasteh A, Lari K, Torabi Azad M.   +4 more
europepmc   +1 more source

Chert outcrops differentiation by means of low-field NMR relaxometry. [PDF]

Sci Rep
Fajt M, Mazur-Rosmus W, Stefańska A, Kochman A, Krzyżak AT.   +4 more
europepmc   +1 more source

Recent developments in the theory of emanation thermal analysis

Thermochimica Acta, 1987
Abstract A report of recent developments in the theory of the emanation thermal analysis of porous and dispersed solids is given. A mathematical model of the inert gas release during non-isothermal heating of solids is suggested, describing the behaviour of porous and dispersed solids on heating, taking into account the annealing of structure defects,
J. Kříž, V. Balek
openaire   +2 more sources

Characteristic Distance as a Material’s Structure Parameter in the Theory of Fracture Emanating from Notches and Cracks

, 2001
The most typical for engineering materials micromechanism is discussed of fracture involving the coalescence process between the main crack and microcrack nucleated ahead of main crack. The appropriate criteria for mathematical description of such process are described.
A. J. Krasowsky
openaire   +2 more sources

Theory of emanation thermal analysis. II Improvement and computer simulation of the mathematical model for inert gas release from a porous solid

Thermochimica Acta, 1984
Abstract An improved mathematical model for the inert gas release from porous solids is proposed. The idea of the recoil atoms' escape via migration along their recoil path and via diffusion in a quasi-continuum, simulating the highly defective solid, has been introduced in this model.
J. Kříž, V. Balek
openaire   +2 more sources

Theory of emanation thermal analysis. III. Experimental verification of the mathematical model for inert gas release from porous solids

Thermochimica Acta, 1984
Abstract The mathematical model for the inert gas release from porous solids has been experimentally verified. The structure relaxation and sintering of the following solids have been investigated by the emanation thermal analysis at constant heating rate: silica gel, thoria powder, ferric oxide powder of various thermal history, commercial ferric ...
V. Balek, J. Kříẑ
openaire   +2 more sources

Theory of Emanation Thermal Analysis: XI. Radon diffusion as the probe of microstructure changes in solids

Journal of Thermal Analysis and Calorimetry, 2002
The theoretical background for the use of radon diffusion as a probe of microstructure changes in solids is given. The high sensitivity of the emanation thermal analysis (ETA) in the study of solid state processes especially interactions taking place on surfaces and in the near surface layers is described.
I. N. Beckman, V. Balek
openaire   +2 more sources

Theory of emanation thermal analysis VII: thermostimulated inert gas release as influenced by the energy spectrum of the defect sites in solids

Thermochimica Acta, 1989
Abstract The results are given of the investigation into the influence of the energy spectrum of defect sites in solids occupied by inert gas atoms (used as the label of solid samples) on the thermostimulated gas release rate curves. The model curves of the temperature dependences of the inert gas release were investigated using several methods, such
A.V. Sheleznov, I.N. Beckman, V. Balek
openaire   +2 more sources

Averroës and the Theory of Emanation

Mediaeval Studies, 1981
Barry Sherman Kogan
openaire   +2 more sources