A heat-insulated pipe and a separate sealed pipeline section with hydroprotection along the external surface and along the ends, which section is formed by the heat-insulated pipe, which comprises an internal working pipe which is arranged in an external hydroprotected pipe casing so as to form a "pipe in pipe" construction, a heat-insulation layer filling an inter-pipe space between the above-mentioned pipes, and also end seals, each of which has an axial opening under the working pipe and is nondetachably and hermetically connected to the external hydroprotected pipe casing. Openings which are usable in the manufacturing of the heat-insulated pipe are formed in each end seal, at least one of which openings is intended for the pouring-in of a foaming heat-insulated composition and at least one opening, which is covered by a perforated section, is intended for connecting the inter-pipe cavity with the heat-insulated layer to the external environment, and, furthermore, at least one further opening is formed in the seal and is intended for the withdrawal of elements of a system for monitoring the state of the heat-insulation layer, wherein all of the openings in the end seals can be closed with stoppers.

The substrate is used in a catalytic converter can to which a cylindrical inlet pipe leads and has an inner catalytic zone portion, an outer catalytic zone portion and an insulation material thermally separating the portions. The insulation extends through the substrate and has a uniform cross-section substantially defined by the intersection of two notional cylinders and the upstream face of the substrate, each notional cylinder having: a nominal diameter that is between 1.08 and 1.20 of the diameter of the inlet pipe; a thickness of 1-4 mm; and an axis aligned with the gas direction at the point of maximum velocity at the intersection of the inlet pipe and the can. One of the cylinders is associated with the gas flow at the lower limit of the operating range and the other of the cylinders is associated with the gas flow at the upper limit of the operating range.

A method includes concentrically positioning a working pipe having centering elements inside a casing-pipe, forming a "pipe-in-pipe" design, hermetically sealing the ends of the "pipe-in-pipe" design using end plugs, feeding a foaming thermal insulation material through a servicing aperture in one of the plugs, hermetically sealing the servicing aperture of the plug after finishing the feeding of the foaming material, and outputting gases, which create excess pressure in the annular cavity, by means of a perforated area. Carrying out the method allows for: reducing the number of operations in the technological process; eliminating losses of a liquid reactive polyurethane-foam composition from the inter-pipe space by means of servicing gaps; decreasing the number of defective finished products by means of creating optimal conditions for forming a layer of thermal insulation; providing for stable quality of finished products by means of producing thermally insulated pipes having a calculated thermal conductivity coefficient.

Invention relates to the information of bidomain structure in ferroelectric single crystals and can be used in nanotech and micromechanics for fabrication and operation of precise positioning devices, such as probe microscopes, tunable laser resonators, optics adjustment etc. The technical result achieved is the formation of bi-domain boundary, along with increased efficiency and stability of transforming electric signals to elastic deformations, raising sensitivity and precision due to the absence of mechanical hysteresis, creep and residual deformations in wide range of working temperatures with a high linearity of the voltage-to-mechanical deformation dependence.

The all-season hybrid vertical power plant comprises a vertical shaft in the form of a cylindrical pipe capable of rotation and encompassing a steady hollowed axis mounted on the support. On the vertical shaft a Savonius rotor and a Darreus rotor are mounted. Said Savonius rotor is mounted inside said Darreus rotor. The entire surface of Savonius rotor blades has photoelectric cells. The outputs of said photoelectric cells are connected to the power input of a control unit. A shaft rotation speed gage is mounted on said vertical shaft. The gage output being connected to the control input of said control unit. The first power output of said control unit is connected to the input of a direct current brushless motor. The second power output of said control unit is connected to the input of an inductive power transmitter. The output of said inductive power transmitter is connected via a charge controller to the first input of the electric power accumulator.

The invention refers to measuring equipment and is a mechanical stress sensor. The sensor comprises a rectangular plate of a polymer material the top surface of said rectangular plate having a cavity where the detector is located, wherein inside the body of said rectangular plate there is a preliminary tensile amorphous ferromagnetic microwire produced from cobalt-enriched alloys and located inside a measuring coil in the form of oppositely connected solenoids made from copper wire. The microwire is connected to the first pair of contact pads, said differential measuring coil is connected via printed conductors to the second pair of contact pads, further wherein both pairs of contact pads are connected to the detector comprising an alternating current source connected to the magnetic field source, a direct current source connected to the first pair of contact pads and a measuring coil signal amplifier whose input is connected to the second pair of contact pads and output is connected to an analog to digital converter coupled with a personal computer.

The invention relates to nonferrous metallurgy, and specifically to an anode for electrolytically producing aluminum by the electrolysis of fluoride melts. An anode for producing aluminum by the electrolysis of melts at a temperature below 930ºC is comprised of a base, made of an alloy which contains, by mass percentage, iron (65-96), copper (up to 35), nickel (up to 20) and one or a plurality of additives of molybdenum, manganese, titanium, tantalum, tungsten, vanadium, zirconium, niobium, chromium, and aluminum (up to 1), and cobalt, cerium, yttrium, silicon and carbon (totaling up to 5), and a protective oxide layer comprised mainly of iron oxides and of complex oxides of iron, copper and nickel. The base is prepared by means of casting into metal molds or into sand molds. The protective oxide layer on the surface of the anode is produced by means of pre-oxidation in air at a temperature of 850-1050ºC, or directly, during the process of electrolysis, by oxidation using oxygen which forms on the anode. The protective oxide layer on the surface of the anode has a thickness of 0.1-3.0 mm.

The invention relates to the field of thermochemical processing of articles made from aluminium alloys by thermodiffusion galvanization. The powder mixture composition comprises zinc powder, an inert filler - oxides of silicon, aluminium, iron and calcium with additions of clay and sand, and an activator - a mixture of components: 12-15% by mass of sodium fluoride, 20-25% by mass of lithium chloride, 10-15% by mass of ammonium chloride, 12-14% by mass of zinc chloride, with the remainder being potassium chloride, with the following ratio of components in the composition: 55-60% by mass of inert filler, 3-5% by mass of activator, with the remainder being zinc powder. The method comprises pre-processing the surface of the articles with pellets of austenitic or austenitic-ferritic steel with a dispersibility of 0.3-0.4 mm, loading the articles and a saturating mixture into a container preheated to 100-120°C, loading the container into a furnace preheated to 100-120°C, processing the articles at a temperature of 420-430° C for 1 hour while constantly rotating the container at a speed of 1-2 rpm and a constant pressure within the container of 1.8-2.2 atm, cooling the furnace to 100-120°C, extracting the articles from the container, cooling the articles in water and processing same in a vibrating apparatus with ceramic chips along with an inhibiting solution, and the composition mentioned is used as a saturating powder mixture.

The invention relates to the chemical-thermal treatment of aluminum-alloy surfaces by means of thermal diffusion galvanizing in powdered mixtures in order to increase the corrosion properties of products. A composition of a powder mixture for the thermal diffusion galvanizing of products made of aluminum alloys includes zinc powder, an inert filler and, as an activator, a mixture of the following components, in weight percent: sodium fluoride (12-15), lithium chloride (20-25), ammonium chloride (10-15), zinc chloride (12-14), potassium chloride (the remainder), with the following ratio of the components of the composition, in weight percent: inert filler (17-22), activator (6-8), zinc powder (the remainder). The preparation method of the composition for the thermal diffusion galvanizing of products made of aluminum alloys includes drying a mixture of the inert filler and the activator at a temperature of 60-70°C over the course of 1.5-2.0 hours, and mixing all the components in an airtight rotating container at a temperature of 60-70°C until a moisture content of no greater than 1% is reached.

Systems, methods, and software for detecting boundary locations of multiple subsurface layers are described. In some aspects, the boundaries of multiple subsurface layers in a subterranean region are identified based on measurements associated with multiple different transmitter-receiver spacings. The measurements are generated based on operating multiple transmitters and multiple receivers of a resistivity logging tool at a tool depth in a wellbore in the subterranean region. A first pair of the subsurface boundary locations are determined based on a first measurement associated with a first transmitter-receiver spacing. A second, different pair of the subsurface boundary locations are determined based on a second measurement associated with a second, longer transmitter-receiver spacing. The first pair of subsurface boundary locations reside between the second pair of subsurface boundary locations in the subterranean region.