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The paper presents theoretical analysis and experimental results which show the possibility of the application of laser beam in examination of the changes of physical parameters of the air flow disturbed by the presence of solid objects.
The method of calculation of kA coefficient needed for calculation of polarizability tensor components α[równoległa] and α(prostopadła] of liquid crystal molecule is presented. Having a refractive indices ne and no, density d, molecular weight M and kA we can calculate the polarizability anisotropy (α[równoległa]-α[prostopadła]), polarizability tensor components α[równoległa]1, α[prostopadła]1 and...
The electron field-emission properties of diamond-like carbon (DLC) thin films and diamond films (DF) were examined by measuring the field-emission current as a function of applied macroscopic electric field. The DLC and DF films were deposited on flat silicon substrates by means of RF PCVD and HF CVD techniques, respectively. The field emission research was carried out using a diode configuration...
Possibilities of tha application of stabilized enzymic solutions for the estimation of dialysis progress with spectrophotometric method are discussed. The change of absorbance of the solution depends on the content of urea in the effluent dialysate which is added to it.
In oue earlier paper we studied the dynamic and thermodynamic properties of some metallic f.c.c crystals using as a model of lattice dynamics the reduced second order approximation of the self-consistent phonon theory (RSOSCPT) developed by Plakida and Siklós. Interatomic interactions were described in terms of the generalized Buckingham, Lennard-Jones and Morse pair potentials. In the present paper...
Certain possibilities of on-line monitoring of dialysis efficiency with spectrophotometric method are connected not with the detection of urea, which is the most common marker of removed wastes, but with some other substances, also diffusing from blood to dialysate. Spectrophotometric detection of acetic acid and creatynine seems to be better choice for these substances exhibit significant absorption...
An antiferroelectric liquid crystal compound (MHOPBB) has been studied by means of low frequency dielectric spectroscopy. This compound shows various chiral smectic C phase and subphases : the SmC, the SmCα, and the SmCγ. In each of the phase detected one dielectric relaxation mode (soft mode and Goldstone mode) related to collective molecular fluctuation, was registered. In earlier work [1] in the...
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