Претраживање
Приказ резултата 1-10 од 27
Phase-transformation kinetics in triphasic cordierite gel
(Journal of Materials Research, 2001)
A triphasic cordierite-type gel was prepared from silica sol, boehmite sol, and an aqueous solution of Mg(NO3)(2). 6H(2)O. The silica sol was obtained from water glass by the ion exchange method, while boehmite sol was ...
Ceramics in the Si3N4-ZrO2-CeO2 system: Phase composition changes and properties
(Zeitschrift fur Metallkunde, 2001)
Silicon nitride-based compositions containing zirconia and ceria additives were prepared by hot pressing in argon atmosphere. The compositions studied can be divided into two groups: (a) with a constant total amount of ...
Dosimetric characteristics of tissue equivalent thermoluminescent solid TL detectors based on lithium borate
(Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 2001)
This paper presents the main dosimetric characteristics of newly prepared, complete tissue-equivalent thermoluminescent dosimeters Li2B4O7:Cu,In, and Li2B4O7:Cu, in the form of sintered pellets. The dosimetric characteristics ...
Design of the central region in the Warsaw K-160 cyclotron
(Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 2001)
This paper describes the design of the central region for h=2 and 3 modes of acceleration in the Warsaw K-160 cyclotron. The central region is unique and compatible with the two above-mentioned harmonic modes of operation. ...
Thermal conductivity and thermal diffusivity of selected oxide single crystals
(Journal of Materials Research, 2001)
Values for the thermal conductivity kappa and the thermal diffusivity D of four oxide single crystals were obtained. Near room temperature, the values for kappa (W cm(-1) K-1) and D (cm(2) s(-1)) are as follows: LaAlO3, ...
The design of reflective filters based on Al(x)Ga(1-x)N multilayers
(Semiconductor Science and Technology, 2001)
In this work we report a method fur designing reflective filters based on Al(x)Ga(1-x)N multilayers. Reflective filters have been designed using a genetic algorithm. The algorithm finds the optimal thickness and composition ...
Distributed measurement and control system based on microcontrollers with automatic program generation
(Sensors and Actuators A: Physical, 2001)
The paper describes an open architecture microcontroller based distributed measurement and control system with automatic generation of application program, interpretation of functions and generation of program for control ...
An efficient electric field approximation for spiral inflector calculations
(Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 2001)
This paper presents a new analytical approximation of the electric field in the spiral inflector. It is based on R-function formalism and derived according to the geometric shape of the inflector including the grounded ...
The cation distribution and magnetic structure of Y3Fe((5-x))AlxO12
(Journal of Magnetism and Magnetic Materials, 2001)
The samples of Y3Fe(5-x)AlxO12 (x = 1,2,3,4,5) were sintered from corresponding mixed hydroxides that were obtained by coprecipitation of mixed nitrates. The neutron diffraction experiments were done, for all the samples, ...
Cubic Casimir operator of SUc(3) and confinement in the nonrelativistic quark model
(Physics Letters B, 2001)
Only two-body [F-i.F-j] confining potentials have been considered, thus far, in the quark model without gluons, which by construction can only depend on the quadratic Casimir operator of the colour SU(3) group. A three-quark ...