Neuronet data processing algorithms in laser interferometer circuit at detecting object’s low oscillations and vibrations

A neuronet algorithm of interferometer data processing was developed for detection of microoscillations of the object. The algorithm parameters analysis has been carried out and sensitivity of the technique has been evaluated using experiment and simulation data. The article is published in the original.     

Analytical determination of a number of particles per carat for diamond powders on the basis of an extrapolation-affine 3D grain model

A new method for analytical determination of a number of particles per carat for diamond powders has been elaborated which is based on an extrapolation-affine 3D grain model The paper provides some results of testing the method on synthetic diamond grinding powders. The mean value of relative error as obtained on eleven test powders was 1.34%, the maximum value being 3%.     

Effect of Heat Treatment on the Microstructure and Microhardness of Nanostructural Al2O3 Coatings

Nanostructural Al₂O₃ coatings were formed on a steel substrate surface using a multichamber detonation sprayer. The Al₂O₃ coatings were characterized by a dense microstructure with porosity below 1% and hardness of 1300 ± 25 HV_0.3. The transition layer between the coating and substrate was up to 15 μm thick, containing Fe-Al-type intermetallic compounds (FeAl₃, Fe₂Al₅). Postdeposition heat treatment of the samples at 850 °C for 3 h was carried out in air and argon environments. The effect of heat treatment on the microstructure and microhardness of the Al₂O₃ coatings was investigated by optical microscopy, scanning and transmission electron microscopy, scanning probe microscopy, x-ray phase analysis, and Vickers hardness testing. A positive impact of postcoating heat treatment on the coating microstructure and microhardness was observed. Heat treatment resulted in an increase in the coating hardness from 1300, to 1350 ± 25 HV_0.3 and 1600 ± 25 HV_0.3 after annealing in air and argon, respectively. Heat treatment in argon led to a more significant increase in the α-Al₂O₃ phase from 47 to 81%.     

Image sequence filtering algorithms for resolution improvement in applicative noise conditions

Algorithms for improving the resolution of a sequence of images distorted by applicative noise manifested in the form of randomly shaped local regions of occlusion are synthesized and analyzed. The basis is the implementation of an optimal linear filtering algorithm in block form, which is synthesized with account for possible emergence of false observations in individual elements of the analyzed images. A method for incorporating the results of independent segmentation of each individual image into the recursive filtering process is proposed, which enhances the quality of the final processing.     

Removal and storage of ash of thermal power stations,variants and prospects of development

Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 11, pp. 24–28, November, 1994.     

Urinary excretion of vanilmandelic acid in the glossalgia syndrome

Under observation there were 78 patients aged 41 to 70 years suffering from the glossalgia syndrome, as well as 25 clinically healthy subjects. An activation of the sympathoadrenal system was revealed in the patients. This was ascertained on the basis of the data on vanillylmandelic acid excretion with the urine. The excretion of that acid is known to be dependent on the intensity of the paraesthesias, the duration of the ailment and the character of concurrent visceral diseases. The results obtained are regarded as evidences of the participation of the vegetative nervous system in the mechanism of the glossalgia syndrome development.     

High-dose transdermal nicotine and naltrexone: Effects on nicotine withdrawal, urges, smoking, and effects of smoking.

Although treatment with transdermal nicotine replacement (TNR) has improved smoking abstinence rates, higher doses of TNR could improve effects on urge to smoke, nicotine withdrawal, and reinforcement from smoking, and naltrexone might further reduce reinforcement and urges. A laboratory investigation with 134 smokers using a 3 × 2 parallel-group design evaluated the effects of TNR (42-mg, 21-mg, or 0-mg patch) as crossed with a single dose of naltrexone (50 mg) versus placebo on urge to smoke, withdrawal, and responses to an opportunity to smoke (intake, subjective effects) after 10 hr of deprivation. Urge and withdrawal were assessed both prior to and after cigarette cue exposure. Only 42 mg TNR, not 21 mg, prevented urge to smoke, heart rate change, and cue-elicited increase in withdrawal. Both 21 and 42 mg TNR blocked cue-elicited drop in heart rate and arterial pressure. Naltrexone reduced cue-elicited withdrawal symptoms but not urges to smoke or deprivation-induced withdrawal prior to cue exposure. Neither medication significantly affected carbon monoxide intake or subjective effects of smoking except that 42 mg TNR resulted in lower subjective physiological activation. No interaction effects were found, and no results differed by gender. Results suggest that starting smokers with 42 mg TNR may increase comfort during initial abstinence, but limited support is seen for naltrexone during smoking abstinence. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Synthesis and properties of the composite ceramics from nanocrystalline Al<Subscript>2</Subscript>O<Subscript>3</Subscript>-30% Y<Subscript>0.1</Subscript>Zr<Subscript>0.9</Subscript>O<Subscript>2</Subscript> prepared from a water-alcohol solution

The hydrogel of the mixed oxide Al₂O₃-30% Y_0.1Zr_0.9O₂ was prepared by precipitation of ammonia from a water-alcohol mixture (1 : 5). The Al₂O₃-30% Y_0.1Zr_0.9O₂ compound thus synthesized was characterized using differential scanning calorimetry, transmission electron microscopy, and the BET adsorption method. The obtained sample consisted of spherical particles with an average size of 16–20 nm and a specific surface area of 167 m²/g. The Al₂O₃-30% Y_0.1Zr_0.9O₂ powder was pressed at 300 MPa and then calcinated at 1600°C for 2 h in air. The topographic and structural features of the prepared ceramics were determined using atomic force microscopy and X-ray electron probe microanalysis. The porosity, the Vickers microhardness, and the tensile strength were determined by mercury porometry.