FIELD: oil production industry. SUBSTANCE: this is intended for intensification of oil recovery by improving filtration characteristics of bottom-hole zone of bed and by testing of beds. According to method, bottom-hole zone of bed is subjected to simultaneous physical and pulsing depression and repression treatment so as to stabilize current values of hydraulic conductivity of bottom-hole zone. M...

FIELD: energy generation. SUBSTANCE: process increasing energy produced by system of gas turbine includes compression of ambient air by main compressor and preliminary compression of air during hot humid weather above flow from main compressor to pressure value not higher than 115% of pressure of ambient air. Prior to feed of preliminarily compressed air to main compressor it is cooled. Air compre...

FIELD: supersmall displacements. SUBSTANCE: kinematic chain includes two pairs of gear wheels; it is used for connecting the screw with nut. Screw is mounted in body for axial displacement. Wheel fitted on screw has Z+1 teeth and is engageable with wheel of kinematic chain fitted on shaft; wheel of kinematic chain has Z teeth. Wheel fitted on nut has Z teeth and is engageable with wheel fitted on ...

FIELD: manufacture of building materials. SUBSTANCE: invention relates to cellular-concrete mixes appropriate for manufacturing heat-insulation and construction-heat- insulation cellular concretes. Concrete mix contains, wt %: ground blast-furnace granulated slag, 53.65-74.32; low-value liquid glass, 25.09-45.02; pore agent, 0.161-0.755; and disperse-reinforcing material, 0.337-0.460. Pore agent m...

The biodegradable polymeric compositions comprise a starch based component and a polymeric component comprising polymers of hydroxyacids or mixtures thereof with polymers deriving from ethylenically unsaturated monomers, particularly polymers of ethylene-vinylalcohol or polyvinylalcohol.

An image processing apparatus includes a designating section for designating an arbitrary region or an arbitrary position of an image; a specifying section for specifying an object region which is present in the designated region or position, and which can additionally be in a vicinity of the designated region or position, from pixel information in the designated region or position; a det...

FIELD: manufacture of building materials. SUBSTANCE: invention relates to concrete mixes appropriate to manufacture concrete and ferroconcrete products. Additive contains post-yeast slop and 3.0-0.5 wt % of modifier: swelled porous product with bulk weight 0.6 g/cu.cm (calcium-magnesium silicates). EFFECT: improved frost resistance, strength, water resistance, and fracture toughness. 4 cl, 2 tbl

FIELD: mechanical engineering. SUBSTANCE: prior and/or in the course of the program of wringing out of clothes, drum of washing machine is given rotary motion at stage of weight measurement of clothes in three phases. The first phase is characterized by slow increasing number of revolution up to some final value nl which is higher than number of revolutions at which clothes adjoin the drum surface...

A modulation/demodulation system and method comprising transmitting structure having first and second PN generators which produce distinct, synchron ized, first and second PN sequences. A tapped delay line generates a plurality of symb ols from the second PN sequence, each symbol corresponding to an offset of the secon d PN sequence by one or more chips from the epoch of the first PN sequence. A p...

A surface covering material is described which can be applied on to for example rock and coal surfaces (for convenience both rock and coal will further in this specification be referred to as "rock") in tunnels, stopes and pillars as well as around base plates of rock bolts to inhibit the breaking away of the rock covered thereby. The material comprises a mixture of a cementitious constituent, com...

The invention relates to an adhesive strip and further to a safety bag provided with the adhesive strip according to the invention. The lower surface of the surface film (1) of the adhesive strip comprises a glue layer (2), part of which, advantageously half of its width from the outer edge, is covered with a protective slip (3) consisting of a counterfoil (3a) placed against the glue layer (2) an...

An information reproducing system for selecting one of reproduction items, fetching at least one information unit that corresponds to the selected reproduction item, and reproducing the fetched information unit, the information reproducing system having: a record medium on which information units, reproduction control command information for fetching at least one information unit that corresponds ...

Compounds having the formula (I): in which: R<1> is methyl, ethyl or isopropyl; R<2> is alkyl, aralkyl, cycloalkyl, cycloalkylmethyl, aryl, heterocyclic, or heterocyclic-substituted thio; R<3> is hydrogen, methyl or ethyl; or R<2> together with R<3> is -(CH2)n-, in which n is 3,4 or 5; and A is aromatic heterocyclic; and salts thereof, are valuable agricultural and horticultural anthelminti...

FIELD: specific gravity separation of fine-grained and slime materials, in particular, in mining industry. SUBSTANCE: pulp of concentrated material is supplied to plates wetted with water and installed vertically in a spaced relation to one another. Plates have grooves inclined to horizon. Grooves on opposite surfaces of adjacent plates are inclined in mutually opposite direction. Pulp is supplied...

The invention relates to an arrangement for insulating and damping rails for trackbound vehicles. Damping is imparted through interaction partly through contact between the rail (20) and a central rail foot spreader (1) on each foundation (3), partly through the damping of vertical accelerations via pre-tensioned sleeper clips (4) acting symmetrically in the y-axis, and partly through direct conta...

The invention relates to an arrangement for insulating and damping rails for trackbound vehicles. Damping is imparted through interaction partly through contact between the rail (20) and a central rail foot spreader (1) on each foundation (3), partly through the damping of vertical accelerations via pre-tensioned sleeper clips (4) acting symmetrically in the y-axis, and partly through direct conta...

FIELD: medicine, chemical-pharmaceutical industry. SUBSTANCE: method involves mixing an active component with filling agent, wet granulation of a mixture, granulate drying, dry granulation, granulate powdering, granulate pressing to make tablets and applying a film cover consisting of a mixture of methylcellulose-8, titanium dioxide and tropeolin-0 at the following ratio per one tablet, wt.-%: 63,...

FIELD: liquid cleaning equipment. SUBSTANCE: apparatus has washing reservoir with cover, main washing medium chamber, hollow needles adapted for supplying washing medium into ampoules, and water and air supplying branch pipes, with hollow needles and branch pipes being communicated with main washing medium chamber. Apparatus is further provided with auxiliary washing medium chamber to which water ...

FIELD: ecology; disinfection of sewage waters without reagents. SUBSTANCE: method includes treatment of water in pulse electromagnetic devices with magnetic field intensity of 70-80 kA/m and frequency of 2-10 pulses/s. EFFECT: reduced in water caliform bacteria to level of maximum allowable concentration; considerable reduction of chlorine consumption or full rejection of its use. 1 tblo

FIELD: environmental monitoring. SUBSTANCE: dry algae capable of restoring their vital activity in water are placed into water to be examined and the latter is affected by alternate current. Vibration amplitude of algae is measured and is used to estimate quality and toxicity level of water. EFFECT: accelerated procedure. 2 dwg