FIELD: oil and gas production industry. SUBSTANCE: device has unit for recording instantaneous parameters of pumping setup, circuit for determining and recording of dynamic levels, and indicators. Also provided are following components: survivability ensuring unit, unit for correcting efficiency factor of electric motor, multiplication units, adder, subtraction unit, integrators, and primary multi...

FIELD: oil and gas production industry. SUBSTANCE: device is used in construction of wells. Device has body with coupling thread, sealing collar, rod, seat, ball, supporting nut, and sealing rings. Made inside body below coupling thread is step. Suspended from this step is rod with nut screwed on it. Nut has holes and bevelled upper surface. Supporting nut is screwed on lower part of rod. Mounted ...

FIELD: oil and gas production industry. SUBSTANCE: according to method, installed beyond casing pipe in well is thermometric equipment, recorded is time of putting well in operation, measured are well output, pressure and temperature at well mouth, and temperature beyond casing pipe. Also recorded is time of measuring all aforesaid parameters. After that, coefficient of convective heat transfer is...

A down-shift control system is provided, by which if sufficient torque canno t beobtained for an acceleration request or intention at a shift position, a down-shift operation is suitably performed so as to realize a reliable driving capabili ty and no shift-busy phenomenon occurs. The system comprises a section (1) for calcula ting target driving force of a vehicle according to a degree of opening...

A method of making a drill blank which is elongate and has a vein of an abrasive layer located in an end surface thereof. The method includes the steps of: (i) providing a cemented carbide body having a recess formed in a surface thereof, (ii) placing a layer of ultra-hard abrasive or a mass of ultra-hard abrasive particles on a surface of the recess, (iii) inserting a cemented carbide piece havin...

FIELD: organic chemistry. SUBSTANCE: invention proposes derivatives of hydroxamic acid of the formula (I): HO-NH-CO-CH(OH)-CHR2-C(O)-NH-CHR3C(O)N-R4R5 where R2 is C1-C6-alkyl; R3 is C1-C6-alkyl or R7 is -B-; n = 0, 1; B is divalent C1-C6-alkyl; R7 is CO-NH-OH, cycloalkyl, 5...

FIELD: electrical engineering. SUBSTANCE: method of electronic measurement consists in usage of energy signal formed by first processor in the capacity of characterizing signals. This energy signal is transmitted by means of connector to second processor that generates indication signal. Device for realization of method includes first and second processors, connector, liquid crystal indicator, opt...

A coating composition particularly suitable for coating poly(phenylene oxide) comprises aqueous medium-dispersed particles of: A) between about 30 and about 35 wt%, of a first styrene-acrylic polymer formed of monomers, between about 50 and about 80 mole% of which monomers are styrene or substituted styrene monomers, between about 2 and about 15 mole percent of which monomers are acrylonitrile, an...

This invention relates to a method for forming a coating film which comprises applying an epoxy resin powder coating (A) onto a substrate by electrostatic coating, half-baking the resultant uncured coat, applying a polyester resin powder coating (B) onto the half-baked coat by electrostatic coating, and baking the two uncured coats simultaneously, wherein the epoxy resin powder coating (A) and the...

FIELD: manufacture of building materials. SUBSTANCE: raw meal contains 30-40% of vesicular vermiculite, 30-60% of liquid glass, and 10-30% of finely ground dolomite with grain composition, according to riddlings on sieves No 05K and 01K, 3 and 40- 70 wt %, respectively. In addition, sodium alkyl siliconate and dust fractions from vermiculite burning may also be used in quantities (above 100%) 2-3 ...

FIELD: organic chemistry, antibiotics. SUBSTANCE: invention relates to new derivatives of erythromycin of the general formula (I) where Z, X and Y - hydrogen; R - lower alkyl substituted with phenyl that can be substituted with one or some radicals taken from a group involving halide, lower alkyl, hydroxyl, trifluoromethyl, lower alkoxy-group, phenyl, phenoxy-grou...

FIELD: agriculture, molecular biology. SUBSTANCE: method involves transformation of plant cells and insertion of a nucleotide sequence encoding selective gene together with structural nucleotide sequence. Selected sequences should induce or enhance a positive effect of a compound added in growth medium simultaneously. This ensures to isolate transformed cells without damage of nontransformed cells...

FIELD: food-processing, pharmaceutical, medical and chemical industries; drying liquid viscous materials, mainly, colloidal and aqueous solutions. SUBSTANCE: material to be dried is placed on heated trays in vacuum chamber; drying process is conducted in three stages. At first stage, material is heated to temperature below boiling point of free moisture contained in material; at second stage, mate...

FIELD: production of films. SUBSTANCE: perforated laminated films contain stretchable thermoplastic material having multitude of microholes formed by net of fiber-like elements. Films are formed by directing of liquids, primarily, water to upper surface of source film in the form of column-shaped flows to contact zone. In this case, film is positioned on supporting member. The latter is provided w...

FIELD: organic chemistry, pharmacy. SUBSTANCE: invention relates to alkyl derivatives of trazodone of the general formula (I) where only one of R, R', R' and R''' means C1-3-alkyl and others are hydrogen, and their salts with physiologically acceptable an inorganic or an organic acids. Compounds are synthesized by interaction of compound of the formula (I...

FIELD: petroleum processing. SUBSTANCE: invention is intended for use in vacuum distillation of mazut to produce vacuum gas oil and consists in that condensation and washing off high-boiling goudron fractions in one of column sections is accomplished with phlegm condensed directly in this section, at outlet of which temperature gradient equal to 75-85 C is created by way of providing ratio of temp...

FIELD: communications and computer engineering. SUBSTANCE: distribution cabinet has casing 1 with distributing frame 2 for branching off light conductors by means of connecting adapters and couplers 13 ensuring desired minimal bending radii. Distributing channel 6 incorporating at least one carrying bus 3 for fixing adapter case 9 and couplers 13 is installed for branching off light conductors. Op...

The invention relates to a method of rapidly transporting a drug to the epidermis and accumulating and maintaining the drug therein for a prolonged period of time comprising administration of a therapeutically efective non-toxic amount of the drug with an effective amount of hyaluronic acid.

The invention relates to a marking paint meant to be packed into a small pressure can (1) and to be sprayed with the help of a propellant (8), and to a distribution packing for it. The marking paint consists of a mixture of water, polymer and a colour pigment belonging to the AZO-group which is of foodstuff quality and is dispersible in water.

FIELD: medicine, pharmacy. SUBSTANCE: invention relates to derivatives of 2,4-oxazolidine-dione of the general formula (I) where R is C1-8--alkyl, pyridyl possibly condensed with benzene ring or 5-membered aromatic heterocyclic group containing one nitrogen atom and one oxygen atom or one sulfur atom or three nitrogen atoms being the indicated groups can ...