Претраживање
Приказ резултата 1-10 од 18
Photolysis of Steroidal 20-Aryl-Substituted 11-Nitrites
(Wiley, 1997)
The two structurally similar 20‐phenyl‐ and 20‐(4‐methoxyphenyl)‐11‐(nitrosooxy)pregnan‐20‐ol derivatives 4 and 7 behave differently under photolytic conditions, the former nitrous acid ester affording, as a main product, ...
Photoacoustic investigation of thermal and transport properties of amorphous GeSe thin films
(AIP Publishing, 1994)
In this work the possibility of simultaneous determination of thermal and transport properties of thin films using a photoacoustic method was investigated. The properties of amorphous GeSe thin films, which were evaporated ...
Optical properties of guanidinium aluminium sulphate hexahydrate (GASH)
(IOP Publishing, 1993)
Far-infrared reflection spectra were determined, for the first time, for single crystals of guanidinium aluminium sulphate hexahydrate (GASH) and its solid solution for 5 mol.% chromium isomorph (GCSH). The infrared active ...
Photoacoustic properties of softmagnetic amorphous Fe81B13Si4C2 ribbon
(Springer, 1998)
Photoacoustic properties of amorphous Fe81B13Si4C2 ribbons were investigated. The amplitude and phase photoacoustic spectra were measured as a function of the modulation frequency of an He–Ne laser beam. Thermal diffusivity ...
The ωσ method: A new contactless comparison method for measuring electrical conductivity of nonferromagnetic conductors
(AIP Publishing, 1997)
A novel, very simple, eddy current method for measuring the electrical conductivity of nonferromagnetic conductors is described. This method is relative, i.e., we measure the ratio of conductivities of two samples of the ...
Photoacoustic investigation of transport in semiconductors: Theoretical and experimental study of a Ge single crystal
(The American Physical Society, 1995)
Photoacoustic (PA) heat-transmission measurements were used to study transport in a nearly intrinsic Ge single crystal. A theoretical model was developed which quantitatively describes excess carrier and thermal-wave space ...
Far infrared properties of PLZT ceramics
(Springer, 1997)
Far infrared and mid-infrared reflectivity measurements have been made of lead titanate zirconate (PLZT) ceramics at room temperature in the frequency range 40–1500 cm-1. Kramers-Krönig analysis and a fitting procedure ...
Photoacoustic frequency heat‐transmission technique: Thermal and carrier transport parameters measurements in silicon
(AIP Publishing, 1995)
Photoacoustic frequency heat‐transmission technique is used to study thermal and carrier transport properties in low‐doped silicon wafers. Amplitude and phase photoacoustic signals as a function of modulation frequency of ...
A photoacoustic investigation of transport properties and thermal diffusivity of InSb single crystals
(Elsevier, 1996)
Thermal and electronic transport properties of low-doped single crystal InSb were determined for the first time and analyzed using a photoacoustic frequency heat transmission technique. The thermal diffusivity, excess ...
Anisotropy in Thermal and Electronic Properties of Single Crystal GeSe2 Obtained by the Photoacoustic Method
(The Japan Society of Applied Physics, 1998)
Anisotropy in the thermal and electronic properties for two directions of a thermal wave propagation in GeSe2 single crystal was investigated using the photoacoustic frequency transmission technique. First, the electric ...