Now showing items 1-10 of 467
Photoacoustic measurement of internal quantum efficiency and observation of the exciton effect in GaSe with photoacoustic phase spectra
(Applied Optics, 1997)
We studied the room temperature photoacoustic spectra of GaSe single crystals in the vicinity of the energy gap. Exciton formation was observed in both amplitude and phase spectra. The thermal source that arises in the ...
Some optical properties of the spiral inflector
(Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1999)
This paper compares some optical properties of different spiral inflectors using the program CASINO. The electric field distribution in the inflectors has been numerically calculated from an electric potential map produced ...
The effect of tropopause height on the content of radioactive debris in surface atmosphere
(Environment International, 1997)
The effect of tropopause height on the content of Cs-137 and total beta activity in surface atmosphere was considered for the period of intensive nuclear weapon tests, from 1968-1971. The activity of Cs-137 in monthly air ...
Conduction of heat in inhomogeneous solids
(Applied Physics Letters, 1998)
In this letter we present a method for calculation of linear heat flow in inhomogeneous solids. The method is based on the evaluation of transfer matrices for each layer in a multilayered structure from the Laplace ...
Soliton-induced modification of the speed of sound in quasi-one-dimensional molecular crystals
(Journal of Physics: Condensed Matter, 1998)
The influence of the anharmonic vibron-phonon coupling, arising on account of a dressing effect, on the characteristics of the lattice subsystem in quasi-one-dimensional molecular crystals was examined within the pseudo-harmonic ...
Room-temperature luminescence of AgBr quantum dots
(Chemical Physics Letters, 1999)
A new method for the preparation of 25 Angstrom AgBr quantum dots has been developed. The room-temperature emission of size-restricted AgBr crystallites was observed. The emission spectrum of 25 Angstrom AgBr quantum dots ...
Preparation of Bi2Se3 quantum dots by dissolution of crystalline powder in acetonitrile
(Journal of Materials Science Letters, 1998)
Numerical simulation of photothermal effects in solids with inhomogeneous thermal properties
(Journal of Physics. D: Applied Physics, 1999)
A numerical simulation procedure for the calculation of surface temperature in thermally inhomogeneous solids induced by a harmonically modulated external heat source is presented. The procedure is based on the separation ...
Application of polymerase chain reaction (PCR) in virus diagnosis and bone marrow transplantation
(Jugoslovenska Medicinska Biohemija, 1996)
Polymerase chain reaction (PCR) is a very potent method enabling the amplification of target DNA sequences at least 10(5)-10(6) fold. The efficacy of PCR is measured by its specificity, efficiency (yield quantity) and ...
Synthesis and some physical properties of the diluted magnetic semiconductor Cd1-xMnxO
(Journal of Physics: Condensed Matter, 1996)
Polycrystalline samples of cadmium-manganese mixed oxides Cd1-xMnxO were synthesized by ceramic technology in a wide range of concentrations x (0.05 less than or equal to x less than or equal to 0.90). Their crystalline ...