FIELD: computer tomography. SUBSTANCE: computer tomography is based on obtaining image by means of dispersed small-angle radiation. To enhance measurement sensitivity, dispersion recording is performed within ultrasmall angles from 0 to 1 deg with respect to incident beam direction. Fan beams of low divergence formed by collimator are directed to object. Special spatial filter positioned behind ob...

FIELD: entertainment games, in particular, chess. SUBSTANCE: device has external input unit, variant search unit, position memory unit, commutator, indication unit, turn output unit, positions comparison unit, standard positions storage unit, detector for random variant selection unit and material evaluation, unit for estimation of interaction between pieces, comparator, setter and adder. EFFECT: ...

FIELD: civil and industrial engineering, more particularly manufacture of heat- insulating concrete products. SUBSTANCE: concrete comprises cement, foam-forming additive, water, montmorillonite clay comprising at least 60% of mineral (Al, Mg)2(OH)2{Si4O10}H2O - and foam-forming additive NICA made of hydrolyzed cattle blood stabilized by aluminium sulfate Al2(SO4)3 , ratios of components being as f...

FIELD: electrical engineering. SUBSTANCE: device has winding testing units which supply specific voltage level to rotor winding in order to detect winding faults. Goal of invention is achieved by introduced rotor transmission facilities which moves rotor assembled with winding and collector specific intermediate position, rotor lifting-dropping facilities for moving rotor from intermediate positio...

Provided are an antibacterial bonding compositions for dental use, which comprises (A) an antibacterial primer that comprises an antibacterial polymerizable monomer having an ethylenic unsaturated group and at least one or more cationic groups selected from the group consisting of ammonium bases, pyridinium bases and phosphonium bases , and a volatile solvent, and (B) an adhesive composition compr...

The invention provides a system (10) for treatment and purification of domestic household effluent, and for the elimination within said system of organic solid wastes, comprising means (12, 14) for separately collecting first and second constituents of the sewage of a domestic residential unit, lavatory sewage comprising said first sewage constituent, and bath, shower, wash basin, laundry, kitchen...

FIELD: lubricants. SUBSTANCE: invention provides new fluorinated hydrocarbons containing in molecule at least oxygen atom and having general formula R1R3C=CR2R4, wherein R1, R2, and R3 are partially or completely fluorinated linear or branched C1-C30-alkyls, R4 is linear or branched C1-C30-alkyl or C2-C100-polyether group. Preparation methods for such compounds are also provided. EFFECT: increased...

Two organophosphorus compounds: sodium di-(n-octyl) phosphinate and sodium di-(n-dodecyl) phosphinate, were synthesized and purified. Sodium di-(n-octyl) phosphinate was used both as a surfactant to form reverse micelles and as a precipitating agent to remove heavy metals from aqueous nitrate and chloride solutions. The heavy metals lead, cadmium, and zinc were precipitated from aqueous solutions ...

Provided herein is a method for the removal of soluble metal species consisting of lead, cadmium, zinc and mixtures thereof, present in an aqueous effluent, the method comprising the steps of: a) contacting the aqueous effluent with a organophosphorus salt selected from sodium di-(n-octyl) phosphinate and sodium di-(n-dodecyl) phosphinate or mixtures thereof; b) achieving precipitation of said sol...

FIELD: refractory materials. SUBSTANCE: composition contains refractory filler such as magnesium oxide, corundum, dolomite, silicon carbide, individually or in mixtures; carbonaceous component (3-30%); and binding agent: alkylresorcinol acid modified with urea-formaldehyde oligomer (5-30%). EFFECT: simplified hardening technology and improved environmental condition.

FIELD: chemical-to-electrical energy conversion. SUBSTANCE: fuel cell has case, electrodes dipped in electrolyte, channels for feeding fuel and oxidizing gases. Gaseous-diffusion electrodes are made in the form of porous tubes whose interiors function as channels; they are arranged in parallel layers so that each next layer is symmetric to preceding one; molten carbonates are used as electrolyte. ...

FIELD: brush production. SUBSTANCE: brush has handle and head connected to handle and made from material subjected to plastic deformation. Head has bristle bundle receiving holes where at least one bristle is fastened by means of many-sided clip. Each clip has grooves in at least one side of it. When clip is used for fastening bristles in respective hole, grooves are positioned transverse to brist...

FIELD: communication. SUBSTANCE: invention is related to communication system and provides for achievement of highest quality of service on the average to users in all multi-user communication system thanks to control over speed of data transmission in given system. In correspondence with invention degree of usage of communication resources both for direct communication line from base station to r...

FIELD: electrical engineering. SUBSTANCE: instant values of supply voltage and load current are measured. Instant value of correction voltage is calculated from formula given in description of invention and introduced in supply mains. Proposed technique may be found useful for power systems feeding electric and power-generating circuits handling loads which bring distortions in their current and v...

The invention relates to mixtures of linear organosiloxanes of the general formula 1 R3Si0-(SiR2O)n-SiR3 (1), where R can be identical or different and is a hydrocarbon radical having from 1 to 18 carbon atoms which is optionally substituted by fluorine, chlorine or cyano radicals and is free from ethylenically or acetylenically unsaturated bonds, and n has values from 0 to 20, where the mean numb...

FIELD: compressed gas transportation systems. SUBSTANCE: transportation system includes vessel with gas reservoirs which are assembled in compartments for storage of compressed gas; each compartment includes 3 to 30 gas reservoirs connected to one adjusting valve by means of pipe line belonging to this compartment. System includes high-pressure pipe line provided with devices for connection with s...

Implantable device with a charging current feed arrangement (78) which has at least one receiving coil (106) into which energy can be fed electromagnetically via a charging device (59) located outside the body, an electrochemical battery (90) which can be repeatedly recharged via the charging current feed arrangement, and with a main module (56, 130) supplied with electric power by the battery. Th...

FIELD: communication system. SUBSTANCE: multitap receiver of RAKE type for communication system with widened spectrum has device integrating symbols that includes adder to sum up values of output signals of Walsh indices that are generated in sequence by correlator with use of algorithm of fast Walsh transform in agreement with N code Walsh sequences with value generated by last stage of N-stage s...

A foothold provided with reflectors capable of preventing reflectors having different colors from being erroneously attached to the foothold, of securing unity of the positions of the footholds in respect of right and left colors thereof without firing the foothold again to the body, of sufficiently serving as a channel mark, and of being used for a long period of time since given colors are provi...

FIELD: crystal growing. SUBSTANCE: high eutectic purity (at least 98%) crystal modification B with melting point 73 C, preferably 73-75 C, and NH oscillations in IR spectra 3200-3300 cm-1, in contrast to modification A, is not disposed for crystal growth when used as fungicidal substance. Substance is stable on large-scale storage preserving its original good capability of being suspended and disp...