Bair B Damdinov

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UNLABELLED Extramedullary spinal cord tumors (ESCTs) are relatively rare neoplasms requiring surgical treatment. This paper presents a study of outcomes in patients with ESCTs treated at Irkutsk region hospitals with different facilities. AIM To identify factors affecting the outcome of surgical treatment of ESCTs. MATERIAL AND METHODS The disease stage(More)
The temperature dependencies of real and imaginary parts of complex shear modulus of liquids have been obtained. It has been shown that both real shear modulus G' and imaginary shear modulus G" decrease with increasing temperature. The experiments have been carried out by resonance method at a shear oscillation frequency of 74 kHz. Liquids of viscosity(More)
The visco-elastic properties of liquids have been investigated using acoustical resonance method. Piezoquatrz performed tangential oscillations on the main resonance frequency of 74 kHz contacts by the one end of horizontal surface with the studied liquid layer covered by quartz cover-plate. So the stagnant shear waves are installed in layer. The solution(More)
An acoustical resonance method with piezoquartz vibrator was used in the experimental determination of shear elasticity modulus and a tangent of mechanical loss angle of studied liquids and their boundary layers. It has been shown that liquid has an earlier unknown low frequency (approx. 100 kHz) viscoelastic relaxation process. The experimental results of(More)
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