FIELD: chemical industry. SUBSTANCE: present invention describes process of asymmetric preparation of florphenycol of formula I: . Said process comprises the following stages: (1) stage of regioselective opening of chiral epoxide of formula II: by successive treatment with strong base, Lewis acid and dichloroacetonitrile to obtain ...

FIELD: control of change-over of automatic transmission. SUBSTANCE: mechanical gear-box having several selectable gear ratios includes input and output shafts, control unit for generation of input signals and for processing of these signals by the preset logic rules for transmission of command output signals to control drives of system, control drive of gear-box inclusive; it is also provided with...

FIELD: tyre production technology. SUBSTANCE: this is intended for production of radial-ply tyres for motor trucks and cars. Unit is made up of spindle with guide screw which is connected with driver, pad disk and pneumatic cylinder. Located above pneumatic cylinder is arm of lever having at least two flexible tension rings, and winding rollers. Arm of lever is connected to spindle through lever h...

FIELD: chemistry. SUBSTANCE: lamellar material consists of two external and one internal layers. The internal layer contains up to 50-70 wt.% of lamellar material and 60-80 wt.% of fibrous binder from poly(m-phenyleneisophthalamide), and flakes, the balance. Each external layer contains 15-25 wt. % of lamellar material, 60-70 wt.% of flakes, and fibrous binder from poly(m-phenyleneisophthalamide),...

The present invention relates to a process for improving the cured adhesion of at least two rubber components which contact each other in a pneumatic tire. Prior to vulcanization of the pneumatic tire, one of the components is a precured rubber compound and the other is an uncured rubber compound. The process involves using a precured rubber compound comprising from 40 to 100 parts by weight of na...

FIELD: computer engineering, in particular, electronic equipment for products control using pulse request field. SUBSTANCE: device has amorphous magnetostrictive strip which is made from iron- cobalt alloy, cobalt content in this alloy is at least 30 nuclear percents. In addition this marker, which is made by means of annealing of amorphous magnetic strip-shaped member, is exposed to saturated mag...

FIELD: building materials; may be used in manufacture of heat- and sound-insulating members of buildings and structures, heat-efficient carriers and self-bearing guard members of buildings and structures in industrial and civil engineering. SUBSTANCE: mixture contains, mas.%: ground quartz sand, 38-5-48.5; sodium fluosilicate, 4.7-6.0; water glass, 28.5-35.8; water, 4.9-24.3; and additionally foam...

FIELD: microbiology, medicine. SUBSTANCE: invention relates to the strain of lactic acid bacterium Lactobacillus acidophilus CNCM 1-1225 used as an agent against diarrhea. Invention relates to a composition used against diarrhea also and containing biologically active culture of Lactobacillus acidophilus CNCM 1-1225 and acceptable pharmaceutical or food vehicle. Preferable food vehicle in composit...

FIELD: production of cellulose without chloride chemicals, in particular, in ozone bleaching of cellulose. SUBSTANCE: method includes bleaching of cellulose to whiteness of at least 86 ISO without chlorine bleaching chemicals, with strength of produced cellulose remaining commercially acceptable. In treatment of cellulose containing heavy metals such as manganese, pulp is cooked and delignified to...

FIELD: medicine. SUBSTANCE: method involves choosing physiological characteristics of living being, for example, skin resistance, measuring them in statistically significant number of points which are located in some region of organism surface, determination of statistical distribution of measured values in comparison to reference statistical distribution by means of disclosed device. Said statist...

A cryogenic system for the recovery of fluorine compounds from a carrier gas stream such as an effluent stream from a semiconductor facility comprising three cryogenic rectification columns and a mass transfer contacting device.

FIELD: pharmaceutical chemistry. SUBSTANCE: erythromycin derivatives with general formula I: (I) are provided, in which formula R is (CH2)nAr1, where n is integer from 0 to 6 and Ar1 is (i) carbocyclic C1-18-aryl group optionally substituted by carboxyl group (free, salt, ester, or amide), halogen, nitro group, C1-1...

FIELD: biology, microbiology, agriculture. SUBSTANCE: invention relates to a method of preparing plants of new type able to nitrogen-fixing in leaves. Method involves inoculation of plant organ with bacterium of genus Azotobacter or Azomonas, or Beijerinckia, or Derxia under in vitro conditions. Treated plant is cultured in cultural medium containing nitrogen and carbon source that is utilized by ...

FIELD: mechanical engineering. SUBSTANCE: according to method, effected is bending-down of marginal zone of blank 1-3 for package. Sheet material blank comprises layer 1 which absorbs fluid medium, and at least two layers 2, 3 which create barrier for fluid medium on absorbing layer 1. Also provided are following components being created by milling and extending along marginal zone: flap 8, recess...

FIELD: chemistry of polymers, more particularly composite materials based on phenol resins and fillers. SUBSTANCE: claimed composition comprises tall oil-modified novolac phenol-formaldehyde resin, urotropin, lubricant, magnesia, graphite, wood meal and thermoplastic material, the ratio of components being as follows (wt %): 42.8- 43.4 tall oil-modified novolac phenol-formaldehyde resin; 6.9-6.8 u...

FIELD: modular pressure pickups used in production lines. SUBSTANCE: pickup with flame extinguishing adaptor senses working fluid pressure by means of diaphragm tightly joined with adaptor. Diaphragm transmits working fluid pressure acting upon its outer surface. Sensing member of pickup forms output signal corresponding to pressure of working fluid. Adaptor includes chamber on its outer surface a...

FIELD: clothes for children. SUBSTANCE: panties have gathers at holes for legs, insert fixed from one side and fastenings-"stickers" intended for fixing. Panties construction provides for changing their size as required, due to double rolling-up of upper edge of panties rear part, as a result, fastenings-"stickers" are brought to respective position again, and holes for legs are gathered by elasti...

FIELD: agriculture. SUBSTANCE: present invention describes optically active 2-imidazolin-5-one derivatives of general formula 1: wherein W is oxygen atom, M is oxygen or sulfur atom; R and R are different and are alkyl or phenyl substituted by 1-3 groups selected from R6;; R is C1-2Ὤ¿½ alkyl; R is H or phenyl optionally substituted by 1-3 g...

The canopy is hung from a collapsible cantilever support and comprises a first part attached to the support and at least one collapsible further part attached to the first canopy part. The canopy material is hung from a collapsible cantilever support including an articulated rod and a vertical support that is attached to a first canopy, which in turn is secured to at least one further canopy. The...

FIELD: protection of brake disks against oxidation. SUBSTANCE: method consists in isolating each friction plane of brake disk with liquid-proof layer applied on the outside; disk is immersed in solution containing impregnating composition. Impregnation is effected at differential of pressure on the outside of surfaces being treated and pressure inside open porosity of brake disk with forcing-out t...