Abstract

A method for manufacturing a multi-component target for magnetron sputtering is that the technological process is conducted using powder materials, the components of which are selected from powders: tungsten (W), in an amount in the range of 69.9 to 84.6 wt%, advantageously 78.4 wt%, boron (B) in an amount in the range of 13.5 to 24.3 wt%, advantageously 15.2 wt% and an intermediate metal, advantageously titanium (Ti), in an amount in the range of 1.7 to 6.4 wt%, advantageously 6,4 wt%, which are placed in a high-energy ball mill in a shielding gas atmosphere, advantageously argon, and then the obtained mixture of powders (5) is compacted in a tool set constructed according to the invention, placed in the vacuum chamber of a spark plasma sintering (SPS) device, where the compacting process is conducted in a sintering temperature from 1600 °C to 1800 °C, advantageously 1650 °C, with a heating rate from 10°C/min to 400 °C/min, over a time of 2 min to 30 min, under a pressure of 30 MPa to 50 MPa, advantageously 32 MPa, in a vacuum of more than 5 x10-2mbar, advantageously 5 x10-2 mbar, to obtain a multi-component circular magnetron target with a diameter within a range of from 80 mm to 100 mm, advantageously 100 mm. A tool set for the manufacturing of multi-component target placed in a vacuum chamber of the spark plasma sintering (SPS) device, characterised in that graphite sintering tools containing cylindrical punches: lower (1) and upper (2) form with a circular die (3) a feeding chamber with an internal diameter in the range of 80 to 100 mm, advantageously 100 mm for placing a mixture of powders (5). Moreover, the entire tool set has in a horizontal plane, centric in respect to its vertical axis, sequentially placed elements. Proper selection of materials for individual elements of the tool set in the form of graphite and CFRC composite and updated design of the tool set, as well as the use of complete thermal insulation with the use of graphite felt enabled significant reduction of energy demand by the spark plasma sintering device. Multi-component magnetron target, characterized in that it has the form of a circular target with a diameter in the range of 80-100 mm, advantageously 100 mm and contains tungsten (W) in an amount of 69.9 to 84.6 wt%, advantageously 78.4 wt% and boron (B) in an amount from 13.5 to 24.3 wt%, advantageously 15.2 wt% and an intermediate metal, advantageously titanium (Ti), in an amount in the range from 1.7 to 6.4 wt%, advantageously 6.4 wt%.

IPC Classes  ?

• C23C 14/34 - Sputtering
• H01J 37/34 - Gas-filled discharge tubes operating with cathodic sputtering
• B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
• C04B 35/58 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides
• C22C 1/04 - Making non-ferrous alloys by powder metallurgy
• C22C 29/14 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on borides
• C04B 35/626 - Preparing or treating the powders individually or as batches

Abstract

233 substrate. Another object of the invention is the plasma-catalytic system of the invention for use in the decomposition of ammonia, characterized in that the mixture to be decomposed contains at least 60% ammonia and at least 40% another component selected from nitrogen and hydrogen with a flow rate in a range of 160-200 Ndm3/h.

IPC Classes  ?

• B01J 23/755 - Nickel
• C01B 3/04 - Production of hydrogen or of gaseous mixtures containing hydrogen by decomposition of inorganic compounds, e.g. ammonia

Abstract

Exemplary arrangements relate to a digital camera (10). The camera includes a PCB plate (12) including electronic image sensor (24). The PCB plate is mounted to a base plate (16) through flexures (38, 54) that are operative to cause the PCB plate to be suspended and disposed away from the base plate except at PCB mount portions (32), and the electronic image sensor on the PCB plate and the base plate, to be frictionlessly resiliently repeatedly relatively movable responsive to thermal expansion and contraction. Exemplary arrangements enable the circuitry of the digital camera to compensate for temperature drift of image data.

IPC Classes  ?

• H04N 23/52 - Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
• H04N 23/54 - Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
• H04N 25/60 - Noise processing, e.g. detecting, correcting, reducing or removing noise
• H05K 1/18 - Printed circuits structurally associated with non-printed electric components

Abstract

The object of the invention is a method for manufacturing microfluidic systems for a medical diagnostics of the Point-of-care type in thin-layered polyester materials, including designing of the geometry of layers in the microfluidic system, cutting out micropatterns, binding the layers and testing the tightness of the system, characterized in that as the polyester material are used the polyester films for medical applications, selected from a group containing of hydrophilic films and films coated on at least one side with an acrylic adhesive layer on which micropatterns are manufactured using laser microprocessing, further the foils are placed in alternated way to form layers, are aligned and are combined in a holder, wherein the micropatterns, after bonding of the film layers, form microfluidic microstructures with a resolution of at least 25 μm and maximum height of a partial-melting of the material of 20 μm, and a microfluidic system for medical diagnostics manufactured by this method.

IPC Classes  ?

• B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers

Abstract

An intraosseous hearing implant, which is part of a bone conduction-based system for the stimulation of auditory perception, characterised in that it consists of a mechanical vibration exciter (1), the exciter comprising an electromechanical transducer (2) and comprising a shank (3) and, at the opposite end, a spherical tip (4) coated with a polymer shield (5), with a tightening nut (6) fixed on the tip towards the bone of the skull (CZ), and further, a fixing socket (7) which is operationally tangential to the tightening nut (6), and whose surface tangential to the bone of the skull (CZ) is coated with a layer of bioactive coating and whose base is flush with the shield (5) of the spherical tip (4) of the shank (3) of the mechanical vibration exciter (1), and which is attached to the bone of the skull (CZ) by means of an adhesive binder being a biomaterial, and also characterised in that the shank (3) of the mechanical vibration exciter (1) is connected by a sliding ball (8) comprising a through-hole (8.1), through which the shank (3) of the mechanical vibration exciter (1) passes, wherein the shank (3) of the mechanical vibration exciter (1) is connected to an adjusting pin (10) seated in the socket (11.5) of a fixing plate (11), through a stationary holder (9.1) and a rotary holder (9.2) both placed on the top of the adjusting pin (10), in which the sliding ball (8) is placed.

IPC Classes  ?

• H04R 25/00 - Deaf-aid sets

Abstract

bƒƒ]oxepine having a formula (2) is mixed with a catalyst in a molar ratio of 1:4 in an organic solvent, a mixture is then heated at the boiling point of the solvent for 5 minutes, followed by adding dropwise a hydrazine monohydrate slowly to the reaction mixture and is stirred for further 30 minutes at the boiling point, the post-reaction mixture is then filtered and washed twice with ethanol, and the resulting filtrate is left at the temperature -15°C for 24 hours, followed by separation of the final product therefrom by means of filtration under reduced pressure.

IPC Classes  ?

• C07D 307/91 - Dibenzofurans; Hydrogenated dibenzofurans

Abstract

The object of the invention is a method for producing flaked graphene by intercalation and exfoliation of graphite in a liquid, with continuous stirring of the components by sonication, characterized in that oleum is used as the liquid, wherein the concentration of sulphur trioxide in sulphuric acid is 1-60%.

IPC Classes  ?

• C01B 32/19 - Preparation by exfoliation

Abstract

The invention relates to a cartridge with lab on paper type sensors, characterized in that it consists of an upper cartridge housing (6) and a lower cartridge housing (10), detachably connected by a hinge (8), and a chromatography paper with the printed architecture of lab on paper sensors type (9) placed between the housings (6, 10), wherein the upper cartridge housing (6) is divided into an outer zone on which a slot (3) is located to which a blister with a solvent (1) is attached by a double-sided adhesive tape (2), and an inner zone containing a centrally positioned slot (7) equipped with a porous foil (5) around which symmetrically arranged openings (4) are located, additional aligning elements are located on the comers of each of the elements (6, 9, 10), and on the lower cartridge housing (10), at the inner side thereof, a spacer structure (11) is located of a shape being an envelope of the area that includes the central slot (7) and openings (4) so that when assembled, the cartridge forms a measuring system. The invention also relates to a measurement method carried out using said cartridge and its use for detection of explosives.

IPC Classes  ?

• B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers

Abstract

The subject of the invention is a method for bleaching diatomaceous earth. In this method diatomaceous earth is reacted with hydrochloric acid or a mixture of hydrochloric acid and nitric acid at a temperature from 62°C to 108°C, then diatomaceous earth is filtered off and dried.

IPC Classes  ?

• C01B 33/12 - Silica; Hydrates thereof, e.g. lepidoic silicic acid

Abstract

The subject of the invention is a method for bleaching diatomaceous earth. In this method diatomaceous earth is reacted with hydrochloric acid or a mixture of hydrochloric acid and nitric acid at a temperature from 62°C to 108°C, then diatomaceous earth is filtered off and dried.

IPC Classes  ?

• C01B 33/12 - Silica; Hydrates thereof, e.g. lepidoic silicic acid

Abstract

The invention is related to a method of manufacture of van der Waals heterostructures based on transition metal dichalcogenides selectively grown by the chemical vapor deposition on a graphene substrate, wherein the surface of the graphene substrate was irradiated with an electron beam, whereupon the growth of transition metal dichalcogenides in the area irradiated with the electron beam was controlled by exposure of the irradiated substrate to the air. The invention is also related to a heterostructure manufactured by the described method, characterized in that a two-dimensional structure in the form of a monolayer was grown on a graphene substrate.

IPC Classes  ?

• H01L 21/36 - Deposition of semiconductor materials on a substrate, e.g. epitaxial growth

Abstract

The subject-matter of the invention is a suspension of a photosensitive image sensor, in particular of a digital camera, comprising a PCB plate with an image sensor, characterized in that the PCB plate (P) with an image sensor (M) has at least two resiliently seated first mounting openings (Ot1) of the camera base plate (B) has at least two resiliently seated second mounting openings (Ot2). The method for repeatably controlling and compensating for the temperature drift of an image in a photosensitive image sensor, in particular of a digital camera, consists in that the camera is hardware modified, the temperature drift of the camera image is recorded in steps of at least 1°C for temperature in the range from -35°C to 100°C, wherein a temperature sensor in the camera is used to record the temperature, the recorded temperature drift of the image is used to calculate a polynomial compensation model, and the calculated polynomial compensation model is used to compensate for the temperature drift of the image recorded by the camera.

IPC Classes  ?

• H04N 23/52 - Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
• H04N 23/54 - Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils

Abstract

The subject-matter of the invention is a suspension of a photosensitive image sensor, in particular of a digital camera, comprising a PCB plate with an image sensor, characterized in that the PCB plate (P) with an image sensor (M) has at least two resiliently seated first mounting openings (Ot1) of the camera base plate (B) has at least two resiliently seated second mounting openings (Ot2). The method for repeatably controlling and compensating for the temperature drift of an image in a photosensitive image sensor, in particular of a digital camera, consists in that the camera is hardware modified, the temperature drift of the camera image is recorded in steps of at least 1°C for temperature in the range from -35°C to 100°C, wherein a temperature sensor in the camera is used to record the temperature, the recorded temperature drift of the image is used to calculate a polynomial compensation model, and the calculated polynomial compensation model is used to compensate for the temperature drift of the image recorded by the camera.

IPC Classes  ?

• H04N 23/52 - Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
• H04N 23/54 - Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils

Abstract

The invention relates to a nitrating mixture for the nitration of 2,4- and 2,6-dinitrotoluene to 2,4,6-trinitrotoluene containing from 5 to 20 wt. % of nitric oxide (V), from 60 to 80 wt. % of nitric acid (V) and from 5 to 30 wt. % sulfuric acid (VI). The invention further relates to a process for obtaining of 2,4,6-trinitrotoluene comprising contacting 2,4- and 2,6-dinitrotoluene with the nitrating mixture according to the invention and heating the resulting reaction mixture, characterized in that the mass ratio of the nitrating mixture to 2,4- and 2,6-dinitrotoluene is not greater than 10:1.

IPC Classes  ?

• C06B 25/04 - Compositions containing a nitrated organic compound the nitrated compound being an aromatic
• C07C 205/06 - Compounds containing nitro groups bound to a carbon skeleton having nitro groups bound to carbon atoms of six-membered aromatic rings

Abstract

The invention relates to a nitrating mixture for the nitration of 2,4- and 2,6-dinitrotoluene to 2,4,6-trinitrotoluene containing from 5 to 20 wt. % of nitric oxide (V), from 60 to 80 wt. % of nitric acid (V) and from 5 to 30 wt. % sulfuric acid (VI). The invention further relates to a process for obtaining of 2,4,6-trinitrotoluene comprising contacting 2,4- and 2,6-dinitrotoluene with the nitrating mixture according to the invention and heating the resulting reaction mixture, characterized in that the mass ratio of the nitrating mixture to 2,4- and 2,6-dinitrotoluene is not greater than 10:1.

IPC Classes  ?

• C06B 25/04 - Compositions containing a nitrated organic compound the nitrated compound being an aromatic
• C07C 205/06 - Compounds containing nitro groups bound to a carbon skeleton having nitro groups bound to carbon atoms of six-membered aromatic rings

Abstract

An object of the invention is an absorbent material, in particular a dressing material, build of poly(glycerol sebacate), called absorbent material made of PGS, containing an active substance, and a method of absorbent material made of PGS containing an active substance fabrication. In the absorbent material, the active substance may be adenosine. The active substance is placed during the moulding process and therefore no subsequent modification/treatment of the absorbent material is necessary. The composition of the polymer mixture reduces shrinkage during curing, shortens the curing process and ensures linear release of the active substance by diffusion. The method of the absorbent material made of PGS fabrication according to the invention provides a cured absorbent material, which is preferably placed in a polyamide/polyethylene bag and then sterilised.

IPC Classes  ?

• A61F 13/00 - Bandages or dressings; Absorbent pads
• A61L 15/26 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
• A61L 15/44 - Medicaments

Abstract

The invention relates to a method for manufacturing ceramic matrix composites reinforced with metallic particles, characterized in that it comprises the following steps: a) a solvent in an amount of 2-15 parts by weight is mixed with two organic monomers in an amount of 2-15 parts by weight each, and with a photoinitiator in an amount of 1-5 parts by weight based on the sum of the weights of organic monomers, wherein the photoinitiator is selected from the group comprising a mixture of ethyl (2,4,6-trimethylbenzoyl)phenylphosphinate and bis-(2,4,6-trimethylbenzoyl)phenylphosphine oxide, bis-(2,4,6-trimethylbenzoyl)phenylphosphine oxide, and ethyl (2,4,6-trimethylbenzoyl)phenylphosphinate; b) then a dispersing agent in an amount of 0.2-5.0 parts by weight, a ceramic powder in an amount of 65-90 parts by weight, and a metal powder in an amount of 0.1-10.0 parts by weight are added and mixed again, wherein the dispersing agent is selected from the group comprising a polyester and polyamine copolymer as a 50% solution in a trichlorethylene-ethanol azeotrope, a polyester and polyamine copolymer as a 50% solution in 2-butanone; c) the resulting dispersion is mixed and deaerated; d) products are formed using a 3D stereolithographic printer in accordance with a previously prepared product design; e) the resulting products are sintered.

IPC Classes  ?

• C04B 35/111 - Fine ceramics
• C04B 35/14 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on silica
• C04B 35/486 - Fine ceramics
• C04B 35/626 - Preparing or treating the powders individually or as batches
• B28B 1/00 - Producing shaped articles from the material
• C04B 35/634 - Polymers

Abstract

Formulation of nanoparticles of calcium phosphate, preferably hydroxyapatite, said nanoparticles being modified with lecithin, preferably phosphatidylcholine, said formulation having an enhanced cellular uptake and being a carrier for bisphosphonate, characterised in that bisphosphonate is selected from the group of bisphosphonate drugs approved for medical use, the group comprising alendronate and zoledronate, bisphosphonate is encapsulated in calcium phosphate nanoparticles in an amount up to 40 % by mass, and the nanoparticles are less than 200 nm in size. Method of obtaining said formulation, comprising the steps: a. dissolving Ca(N03)2. 4H2O in a lecithin solution, b. dissolving (NH4)2HP04 in a bisphosphonate solution, c. adjusting the pH of the solution resulting from step a. and of the solution resulting from step b. to the value of 10, d. mixing the solutions from step c. in a reactor to obtain a suspension, e. centrifuging the suspension from step d. to obtain precipitate, f. purifying the precipitate from step e. by rinsing it four times with ultrapure water and centrifuging, g. drying the precipitate from step f. at 50 °C for 12-24 h, h. grinding the precipitate from step g. in a ball mill for 10 minutes at a speed of 150 rpm, wherein step d. is carried out in a continuous or batch reactor.

IPC Classes  ?

• A61K 9/16 - Agglomerates; Granulates; Microbeadlets
• A61K 31/675 - Phosphorus compounds having nitrogen as a ring hetero atom, e.g. pyridoxal phosphate
• A61K 31/663 - Compounds having two or more phosphorus acid groups or esters thereof, e.g. clodronic acid, pamidronic acid

Abstract

b,fb,fb,f]oxepin. The preferable catalyst of the reaction is triethylamine, and the compounds obtained may be useful as molecular switches in biological systems and photopharmacology.

IPC Classes  ?

• C07D 313/14 - [b, f]-condensed

Abstract

22 nanoparticles and decorated with Cu nanoparticles. The reactor is also characterized in that it comprises a filling of composite halloysite particles selected from the stationary and fluidized one. The energy needed to conduct the photocatalytic process is provided by a source selected from among the LED sources distributed uniformly throughout the reactor space and from an external LED source through a fibre optic system. Preferably, the reactor further comprises a prefiltration system disposed in front of it and an end filter disposed behind it.

IPC Classes  ?

• C02F 1/28 - Treatment of water, waste water, or sewage by sorption
• C02F 1/72 - Treatment of water, waste water, or sewage by oxidation
• C02F 1/32 - Treatment of water, waste water, or sewage by irradiation with ultraviolet light
• B01J 35/08 - Spheres
• B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
• B01J 23/72 - Copper
• B01J 21/06 - Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
• B01J 21/16 - Clays or other mineral silicates
• B01J 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
• B01J 20/16 - Alumino-silicates
• B01J 20/02 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
• B01J 20/12 - Naturally occurring clays or bleaching earth
• B01J 20/32 - Impregnating or coating
• C02F 101/20 - Heavy metals or heavy metal compounds
• C02F 101/30 - Organic compounds

Abstract

The subject matter of the invention is a method of heat treatment of medium- and high-carbon alloy steels, the AIM of which is to produce a fragmented, multiphase microstructure consisting of tempered bainitic ferrite and martensite, separated by layers of stable residual austenite and finely dispersed alloy carbide precipitates responsible for secondary hardness. The method according to the invention makes it possible to control the phase fraction and morphology of the microstructure, allowing achieving the desired properties of the steel in terms of applications and requirements for tools and structural components. The method according to the invention, can be used to shape the properties of pieces that are required to have higher impact strength and resistance to fracture compared to conventional martensitic quenching and tempering treatment, while maintaining comparable hardness and strength. These pieces can include industrial knives, coin punches and punching dies for plastics, among other things. This treatment allows for longer life of the pieces and increases the fault-free life of equipment.

IPC Classes  ?

• C21D 1/18 - Hardening; Quenching with or without subsequent tempering
• C21D 6/00 - Heat treatment of ferrous alloys
• C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
• C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
• C21D 1/20 - Isothermal quenching, e.g. bainitic hardening
• C21D 1/22 - Martempering
• C21D 1/30 - Stress-relieving

Abstract

The invention relates to a biocomposite comprising beeswax and a method of producing the biocomposite with the use of beeswax. The use of beeswax made it possible to eliminate/replace synthetic (petroleum-derived) waxes used as a processing additive and reduce the carbon footprint of the composite.

IPC Classes  ?

• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
• A61K 35/644 - Beeswax; Propolis; Royal jelly; Honey

Abstract

The subject of the invention is a laboratory stand for studying the effect of accelerations on the linear burning rate of solid rocket propellants. The laboratory stand for studying the effect of accelerations on the linear burning rate of solid rocket propellants according to the invention comprises a DC electric motor with an encoder, an energy storage module, an igniter power supply system, an electronic pressure measuring system in a combustion chamber and a rocket micromotor. The electric motor is connected to an encoder, at the same time the electric motor is connected to the main shaft by a bellows-free coupling, and an energy storage module is placed on the main shaft. On the opposite side of the rocket micromotor body located on the main shaft by a fastener there is the igniter power supply system mounted on the main shaft containing a power supply system sleeve on which conductive rings and insulating rings are placed, terminated with a closing ring and carbon brushes. The electronic pressure measuring system in the combustion chamber includes a pressure sensor located in a pressure sensor socket connected to the rocket micromotor body by means of a pressure measurement port. And, furthermore, on the threaded end of the main shaft is located a rocket micromotor body mount containing the combustion chamber with an internal collector groove and a pressure measurement port, and a safety valve port with a safety valve together with an outlet socket on the side of the rocket micromotor body.

IPC Classes  ?

• G01M 15/14 - Testing gas-turbine engines or jet-propulsion engines
• F02K 9/96 - Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof characterised by specially adapted arrangements for testing or measuring

Abstract

The subject of the invention is a laboratory stand for studying the effect of accelerations on the linear burning rate of solid rocket propellants. The laboratory stand for studying the effect of accelerations on the linear burning rate of solid rocket propellants according to the invention comprises a DC electric motor with an encoder, an energy storage module, an igniter power supply system, an electronic pressure measuring system in a combustion chamber and a rocket micromotor. The electric motor is connected to an encoder, at the same time the electric motor is connected to the main shaft by a bellows-free coupling, and an energy storage module is placed on the main shaft. On the opposite side of the rocket micromotor body located on the main shaft by a fastener there is the igniter power supply system mounted on the main shaft containing a power supply system sleeve on which conductive rings and insulating rings are placed, terminated with a closing ring and carbon brushes. The electronic pressure measuring system in the combustion chamber includes a pressure sensor located in a pressure sensor socket connected to the rocket micromotor body by means of a pressure measurement port. And, furthermore, on the threaded end of the main shaft is located a rocket micromotor body mount containing the combustion chamber with an internal collector groove and a pressure measurement port, and a safety valve port with a safety valve together with an outlet socket on the side of the rocket micromotor body.

IPC Classes  ?

• G01M 15/14 - Testing gas-turbine engines or jet-propulsion engines
• F02K 9/96 - Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof characterised by specially adapted arrangements for testing or measuring

Abstract

Exemplary arrangements relate to methods for recording and reproducing holograms. A method of recording a hologram in a thresholded opto-magnetic medium (7) includes producing a collimated recording beam (1) with a pulsed laser. The intensity of the recording beam is selectively modulated by passage through a modulator (2). The recording beam is spatially shaped by passage through a shaping element (15). The shaped modulated recording beam is made convergent by passage through an aspheric lens (4). The convergent beam is deflected bidirectionally with a MEMS mirror (6) that is in operative connection with the modulator, such that multiple disposed locations on a surface of the medium are exposed to a constriction of the convergent shaped recording beam, causing a change in the medium in the locations. Reconstructing the hologram is carried out by illuminating the medium with a collimated laser beam and focusing with a lens, light from the illuminated medium onto a detection matrix. Additional methods of recording and reproducing holograms utilize alternative steps.

IPC Classes  ?

• G03H 1/10 - Processes or apparatus for producing holograms using modulated reference beam
• G03H 1/22 - Processes or apparatus for obtaining an optical image from holograms

Abstract

An intraosseous dental implant for the application of biologically active agents directly to the surrounding soft tissues and bone tissue, and their substitutes, is described. The implant enables the measurement of the newly formed or lost bone tissue volume immediately adjacent to the implant. Increasing the dynamics of osseointegration growth directly results in the possibility of reducing the duration of the entire treatment protocol. To increase dynamics of the osseointegration process, the type of material from which the implant is made, its design features, surface topography, as well as the formation of layered structures and coating applications, are described. The implant introduces growth factors and other biologically active factors that affect an increase in the dynamics of osseointegration strength. The entire implant or a porous section thereof can be produced by 3D printing through selective melting/sintering of biocompatible metallic, ceramic, or metallic-ceramic composite powders with laser or electron beams.

IPC Classes  ?

• A61C 8/02 - Means for transfixation of natural teeth
• A61C 8/00 - Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools

Abstract

The object of the invention is a method for producing flaked graphene by intercalation and exfoliation of graphite in a liquid, with continuous stirring of the components by sonication, characterized in that oleum is used as the liquid, wherein the concentration of sulphur trioxide in sulphuric acid is 1-60%.

IPC Classes  ?

• C01B 32/19 - Preparation by exfoliation

Abstract

Refractive index distribution standard in the form of a three-dimensional object which contains in its volume a base medium and regions of variable size and distance with a refractive index other than that of the base medium, characterised in that the difference between the refractive index of said regions and the refractive index of the base medium is not greater than 0.04, at least one of the regions is a set of at least two prisms or cylinders or coaxial rings of variable size and distance, having a dimension in at least one direction similar to the resolving power of the measurement system under assessment and at least one of the regions is sphere-like or ellipsoid-like in shape.

IPC Classes  ?

• G01N 21/41 - Refractivity; Phase-affecting properties, e.g. optical path length

Abstract

Generator of physically unclonable cryptographic keys (PUF) has two adjustable speed ring oscillators (GPRS, GPRS′), which outputs (o-GPRS, o-GPRS′) are connected to inputs (i1-DF, i2-DF) of a phase detector (DF), which output (o-DF) is connected to control inputs of the adjustable speed ring oscillators (s-GPRS, s-GPRS′) through a control system (US) and is also connected to a output (o-PUF) of the generator of physically unclonable cryptographic keys (PUF) through a sample and compare circuit (URP). Generator has a initializing input (i-UCH) connected to both initializing inputs of the adjustable speed ring oscillators (i-GPRS, GPRS′) and to the first input of the sample and compare circuit (i-URP), which second input (z-URP) is connected to the output (o-GPRS′) of one of adjustable speed ring oscillators (GPRS′).

IPC Classes  ?

• H04L 29/06 - Communication control; Communication processing characterised by a protocol
• H04L 9/08 - Key distribution
• H04L 9/14 - Arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
• H04L 9/32 - Arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system

Abstract

Random number generator (GL) comprising adjustable speed ring oscillators (GPRS, GPRS′), which have outputs (o-GPRS, o-GPRS′) connected to inputs (i1-UM, i2-UM) of a metastability circuit (UM) and inputs (i1-DF, i2-DF) of a phase detector (DF), which outputs (o-UM, o-DF) are connected to inputs (r-US′, i-US′) of a control circuit (US′), having output (o-US′) connected to control inputs (s-GPRS, s-GPRS′) of the adjustable speed ring oscillators (GPRS, GPRS′). The outputs (o-UM, o-DF) of the metastability circuit (UM) and the phase detector (DF) are being outputs (o-GL, o2-GL) of the random number generator (GL).

IPC Classes  ?

• G06F 7/58 - Random or pseudo-random number generators
• H03K 3/84 - Generating pulses having a predetermined statistical distribution of a parameter, e.g. random pulse generators

Abstract

Core/shell microcapsules according to the invention are characterised in that they consist of a polyester porous core comprising a biologically active substance and hydrogel shell encompassing said core prepared from an aqueous solution of alginate at a concentration of 0.01% (w/v) to 30.0% (w/v), with the addition of graphene oxide in the amount of 0.01% (w/v) to 10.0% (w/v) in relation to the alginate solution volume. Polyester porous core is made from an emulsion obtained from an aqueous solution of a biologically active substance and a polyester solution prepared in an organic solvent. Polyester is selected from the group consisting of: lactic acid polymers, glycolic acid polymers, ε-caproic acid polymers and their copolymers. The solvent for the biologically active substance comprises a physiological saline solution or biologically acceptable buffer, and the ratio of organic phase to aqueous phase is from 1: 1 to 20: 1.

IPC Classes  ?

• A61K 9/16 - Agglomerates; Granulates; Microbeadlets
• A61K 9/50 - Microcapsules
• A61K 38/00 - Medicinal preparations containing peptides
• A61K 9/19 - Particulate form, e.g. powders lyophilised

Abstract

The subject of the invention is an intraosseous dental implant for the application of biologically active agents directly to the surrounding soft tissues and bone tissue, and their substitutes, and enabling the measurement of the newly formed or lost bone tissue volume immediately adjacent to the dental implant. Increasing the dynamics of osseointegration growth directly results in the possibility of reducing the duration of the entire treatment protocol. This effect is highly anticipated by patients - the beneficiaries of therapy. In order to increase the dynamics of the osseointegration process in intraosseous dental implants, there is ongoing research on the type of material from which the implants are made, their design features, surface topography, as well as the formation of layered structures and coating applications. The use of growth factors and other biologically active factors affects the increase in the dynamics of osseointegration strength in intraosseous dental implants. The possibility of introducing these factors into the direct surroundings of the implant during healing is important. The entire implant or porous section of the implant according to the invention can advantageously be produced by 3D printing through selective melting/sintering of biocompatible metallic, ceramic or metallic-ceramic composite powders with laser or electron beam.

IPC Classes  ?

• A61C 8/00 - Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools

Abstract

The subject of the invention is an intraosseous dental implant for the application of biologically active agents directly to the surrounding soft tissues and bone tissue, and their substitutes, and enabling the measurement of the newly formed or lost bone tissue volume immediately adjacent to the dental implant. Increasing the dynamics of osseointegration growth directly results in the possibility of reducing the duration of the entire treatment protocol. This effect is highly anticipated by patients - the beneficiaries of therapy. In order to increase the dynamics of the osseointegration process in intraosseous dental implants, there is ongoing research on the type of material from which the implants are made, their design features, surface topography, as well as the formation of layered structures and coating applications. The use of growth factors and other biologically active factors affects the increase in the dynamics of osseointegration strength in intraosseous dental implants. The possibility of introducing these factors into the direct surroundings of the implant during healing is important. The entire implant or porous section of the implant according to the invention can advantageously be produced by 3D printing through selective melting/sintering of biocompatible metallic, ceramic or metallic-ceramic composite powders with laser or electron beam.

IPC Classes  ?

• A61C 8/00 - Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools

Abstract

Application of a polymer-carbon composite, wherein in a matrix of electrically non-conducting thermoplastic polymer, elastomer or siloxane, a filler is dispersed in the form of carbon nanostructures used in the amount of 0.1% to 10% by wt., for selective shielding of radiation in the range of 0.1-10 THz, with efficiency exceeding 10 dB at least in a part of the mentioned sub-terahertz range, the composite obtained by a direct mixing of fluid polymer and the filler and curing being used, and the composite used being non-conducting for direct current.

IPC Classes  ?

• C08J 3/20 - Compounding polymers with additives, e.g. colouring
• C08K 3/04 - Carbon
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 83/04 - Polysiloxanes

Abstract

Refractive index distribution standard in the form of a three-dimensional object which contains in its volume a base medium and regions of variable size and distance with a refractive index other than that of the base medium, characterised in that the difference between the refractive index of said regions and the refractive index of the base medium is not greater than 0.04, at least one of the regions is a set of at least two prisms or cylinders or coaxial rings of variable size and distance, having a dimension in at least one direction similar to the resolving power of the measurement system under assessment and at least one of the regions is sphere-like or ellipsoid-like in shape.

IPC Classes  ?

• G01N 21/27 - Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection
• G01N 21/41 - Refractivity; Phase-affecting properties, e.g. optical path length

Abstract

The invention is related to a method of manufacturing flake graphene in a liquid phase exfoliation process of graphite in oil.

IPC Classes  ?

• C01B 32/19 - Preparation by exfoliation

Abstract

The invention is related to a method of manufacturing flake graphene in a liquid phase exfoliation process of graphite in oil.

IPC Classes  ?

• C01B 32/19 - Preparation by exfoliation

Abstract

Random number generator (GL) comprises three ring oscillators (GP1, GP2, GP3) and seven bistables (UB1, UB2, UB3, UB4, UB5, UB6, UB7). The ring oscillators (GP1, GP2, GP3) comprise delay lines (LO1, LO2, LO3) closed in loops. The delay lines (LO1, LO2, LO3) comprise delays (EO) connected in series between inputs (i-LO1, i- LO2, i-LO3) and outputs (o-LOl, O-L02, O-L03) of the delay lines. Outputs (o-UB1, o-UB2, o-UB3, o-UB4, o-UB5, 0-UB6, o-UB7) of the bistables (UB1, UB2, UB3, UB4, UB5, UB6, UB7) are connected to outputs (o1-GL, o2-GL, o3-GL, o4-GL, o-5GL, 06-GL, o7-GL) of the random number generator (GL). Inputs (i1-UB1, i2-UB1, i1-UB2, i2- UB2, i1-UB3, i2-UB3, i1-UB4, i2-UB4, i1-UB5, i2-UB5, i1-UB6, i2- UB6, i1-UB7, i2-UB7) of the bistables (UB1, UB2, UB3, UB4, UB5, UB6, UB7) are connected to the delay lines (LO1, LO2, LO3) of the ring oscillators (GP1, GP2, GP3) to outputs of selected delays (EO).

IPC Classes  ?

• H03K 3/84 - Generating pulses having a predetermined statistical distribution of a parameter, e.g. random pulse generators

Abstract

Application of a polymer-carbon composite, wherein in a matrix of electrically non-conducting thermoplastic polymer, elastomer or siloxane, a filler is dispersed in the form of carbon nanostructures used in the amount of 0.1% to 10% by wt., for selective shielding of radiation in the range of 0.1-10 THz, with efficiency exceeding 10 dB at least in a part of the mentioned sub-terahertz range, the composite obtained by a direct mixing of fluid polymer and the filler and curing being used, and the composite used being non-conducting for direct current.

IPC Classes  ?

• C08K 3/04 - Carbon
• C08J 3/20 - Compounding polymers with additives, e.g. colouring

Abstract

Random number generator (GL) comprising adjustable speed ring oscillators (GPRS, GPRS'), which have outputs (o-GPRS, o-GPRS') connected to inputs (i1-UM, i2-UM) of a metastability circuit (UM) and inputs (i1-DF, i2-DF) of a phase detector (DF), which outputs (o-UM, o-DF) are connected to inputs (r-US', i-US') of a control circuit (US'), having output (o-US') connected to control inputs (s-GPRS, s-GPRS') of the adjustable speed ring oscillators (GPRS, GPRS'). The outputs (o-UM, o-DF) of the metastability circuit (UM) and the phase detector (DF) are being outputs (o-GL, o2-GL) of the random number generator (GL).

IPC Classes  ?

• H03K 3/84 - Generating pulses having a predetermined statistical distribution of a parameter, e.g. random pulse generators

Abstract

Metastability based random number generator comprises a block for metastability generation of time intervals (GMICRS') having at least two outputs (T1, T2, T3, T4, T5) and at least one speed control input (RS1, RS2, RS3, RS4, RS5), and it comprises a block of variable speed arbiter circuits (ARS') comprising at least one arbiter circuit (ARS1, ARS2, ARS3) connected to at least two selected outputs (T1, T2), (T2, T3), (T4, T5) of the block for metastability generation of time intervals (GMICRS'). Further it has an output sub-system (UK) connected to outputs of the arbiter circuits (ARS1, ARS2, ARS3). At least one arbiter circuit (ARS1, ARS2, ARS3) has a speed control input (RSA1, RSA2, RSA3) connected to a speed control system (USS'), which is also connected to the block for metastability generation of time intervals (GMICRS') through a controlled speed adjustment circuit (RUDS') and which is also connected to outputs (LL', PLL') of the output sub-system (UK), both being outputs of the metastability based random number generator.

IPC Classes  ?

• H03K 3/84 - Generating pulses having a predetermined statistical distribution of a parameter, e.g. random pulse generators

Abstract

Metastability based random number generator comprises an adjustable speed oscillatory response multivibrator (MOORS), having an output (Q) connected to an input (TQ) of a counter (LCZ). The output (T) of the counter (LCZ) is connected to inputs (T1, T2) of two memories (UP, UP2), which outputs (T1P, T2P) are connected to inputs (K2, K1) of a comparator circuit (UK). Outputs (K, P) of the comparator circuit (UK) are outputs (LL, PLL) of the metastability based random number generator. A speed control input (RS) of the multivibrator (MOORS) is connected to an output (SS) of a speed control system (USS). The outputs (LL, PLL) of the metastability based random number generator are connected to inputs (WLL, WPLL) of the speed control system (USS).

IPC Classes  ?

• H03K 3/84 - Generating pulses having a predetermined statistical distribution of a parameter, e.g. random pulse generators

Abstract

Generator of physically unclonable cryptographic keys (PUF) has two adjustable speed ring oscillators (GPRS, GPRS'), which outputs (o-GPRS, o-GPRS') are connected to inputs (il-DF, i2-DF) of a phase detector (DF), which output (o-DF) is connected to control inputs of the adjustable speed ring oscillators (s-GPRS, s-GPRS' ) through a control system (US) and is also connected to a output (o-PUF) of the generator of physically unclonable cryptographic keys (PUF) through a sample and compare circuit (URP). Generator has a initializing input (i-UCH) connected to both initializing inputs of the adjustable speed ring oscillators (i-GPRS, i-GPRS' ) and to the first input of the sample and compare circuit (i-URP), which second input (z-URP) is connected to the output (o-GPRS') of one of adjustable speed ring oscillators (GPRS').

IPC Classes  ?

• G06F 7/58 - Random or pseudo-random number generators
• G09C 1/00 - Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
• H04L 9/08 - Key distribution

Goods & Services

Anti-corrosive preparations; anti-rust preparations for preservation; undercoat paints; protective preparations for metals; undercoating for vehicle chassis.

Goods & Services

(1) Anti-corrosive greases; anti-corrosive paints; anti-corrosive oils; anti-corrosive waxes (2) Anti-rust preparations for preservation; undercoatings for boat decks; undercoatings for motor vehicles; undercoatings for vehicle chassis.

Abstract

Method for preparation of 5-alkylsalicylaldoximes with formula 1, where R is a C6-C16 alkyl group, consisting in that into a water-alcohol solvent system, p-alkylphenol, sodium hydroxide, chloroform and hydroxylamine are introduced, while in relation to the alkylphenol used, sodium hydroxide and chloroform are used in amounts from the stoichiometric amount to a 100% excess, and hydroxylamine is used in amounts from the stoichiometric amount to a 60% excess, and the reaction is carried out at a temperature of 60-75° C. for 1.5-4 h, and then, at a temperature of 20-30° C., the post-reaction mixture is acidified till the pH of the aqueous phase <7.0 is obtained, and next, an alcohol-water azeotrope is distilled off with an admixture of unreacted chloroform, the residue is mixed with a neutral C5-C10 hydrocarbon solvent, the layers are separated, and the solvent is distilled off from the organic phase.

IPC Classes  ?

• C07C 249/04 - Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton of oximes
• C07C 249/08 - Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton of oximes by reaction of hydroxylamines with carbonyl compounds
• C09D 5/08 - Anti-corrosive paints
• C23F 11/14 - Nitrogen-containing compounds

Goods & Services

Anti-corrosive preparations, namely, anti-corrosive coatings, anti-corrosive paints, anti-corrosive oils; anti-rust preparations for preservation, namely, rust protecting paints, anti-rust greases, rust preventatives in the nature of a coating; undercoat paints; protective preparations for metals in the nature of exterior surface protective coatings for metals; undercoating for vehicle chassis

Abstract

A system for testing spontaneous social interactions of group-housed mice placed in an experimental apparatus comprising a plurality of compartments (101-104) bridged by corridors (105). At least one compartment (101-104) has a perforated partition wall (106,107) separating the compartment into a territory available for mice (106b, 107b) and a territory to be explored by olfaction (106a, 107a). In the territory available for mice (106b, 107b), above the partition wall (106, 107), there is an infrared laser curtain (201), wherein the system comprises a photographic device (202) for acquiring the intersection of a mouse in the light of the infrared curtain. In the territory to be explored by olfaction (106a, 107a), there is a source of olfactory stimuli (203).

IPC Classes  ?

• A01K 1/03 - Housing for domestic or laboratory animals
• A01K 29/00 - Other apparatus for animal husbandry
• G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints

Abstract

Method for preparation of 5-alkylsalicylaldoximes with formula 1, where R is a C6-C16 alkyl group, consisting in that into a water- alcohol solvent system, p-alkylphenol, sodium hydroxide, chloroform and hydroxylamine are introduced, while in relation to the alkylphenol used, sodium hydroxide and chloroform are used in amounts from the stoichiometric amount to a 100% excess, and hydroxylamine is used in amounts from the stoichiometric amount to a 60% excess, and the reaction is carried out at a temperature of 60-75°C for 1.5-4 h, and then, at a temperature of 20-30°C, the post-reaction mixture is acidified till the pH of the aqueous phase < 7.0 is obtained, and next, an alcohol-water azeotrope is distilled off with an admixture of unreacted chloroform, the residue is mixed with a neutral C5-C10 hydrocarbon solvent, the layers are separated, and the solvent is distilled off from the organic phase.

IPC Classes  ?

• C07C 249/04 - Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton of oximes
• C07C 249/08 - Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton of oximes by reaction of hydroxylamines with carbonyl compounds
• C09D 5/08 - Anti-corrosive paints
• C23F 11/14 - Nitrogen-containing compounds
• C07C 251/48 - Oximes with oxygen atoms of oxyimino groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with the carbon atom of at least one of the oxyimino groups bound to a carbon atom of a six-membered aromatic ring

Abstract

Method for preparation of 5-alkylsalicylaldoximes with formula 1, where R is a C6-C16 alkyl group, consisting in that into a water- alcohol solvent system, p-alkylphenol, sodium hydroxide, chloroform and hydroxylamine are introduced, while in relation to the alkylphenol used, sodium hydroxide and chloroform are used in amounts from the stoichiometric amount to a 100% excess, and hydroxylamine is used in amounts from the stoichiometric amount to a 60% excess, and the reaction is carried out at a temperature of 60-75°C for 1.5-4 h, and then, at a temperature of 20-30°C, the post-reaction mixture is acidified till the pH of the aqueous phase < 7.0 is obtained, and next, an alcohol-water azeotrope is distilled off with an admixture of unreacted chloroform, the residue is mixed with a neutral C5-C10 hydrocarbon solvent, the layers are separated, and the solvent is distilled off from the organic phase.

IPC Classes  ?

• C09D 5/12 - Wash primers
• C09D 7/48 - Stabilisers against degradation by oxygen, light or heat
• C09D 7/63 - Additives non-macromolecular organic
• C07C 249/08 - Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton of oximes by reaction of hydroxylamines with carbonyl compounds
• C23F 11/14 - Nitrogen-containing compounds
• C07C 251/48 - Oximes with oxygen atoms of oxyimino groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with the carbon atom of at least one of the oxyimino groups bound to a carbon atom of a six-membered aromatic ring

Abstract

A method for recovering polymer from printed glycol-modified poly(ethylene tefephtalate) (PETG) substrates, comprising the steps of: providing a printed PETG substrate with the print layer comprising pigments and/or dyes dispersed in a binder matrix; chopping the substrate into irregular strips and; treating the chopped substrate with a treating composition; wherein the treating composition is an aqueous azeotrope of an organic low molecular weight, polar solvent selected from the group consisting of ketones, aldehydes, alcohols and esters.

IPC Classes  ?

• C08J 11/08 - Recovery or working-up of waste materials of polymers without chemical reactions using selective solvents for polymer components
• B29B 17/02 - Separating plastics from other materials
• C09D 9/00 - Chemical paint or ink removers
• B41M 7/00 - After-treatment of printed works, e.g. heating, irradiating

Abstract

A method of nanocrystalline structure formation in bearing steel, characterised in that in the first stage, an element made of a commercial bearing steel with the following chemical composition (by wt. %): carbon: 0.93+1.10, silicon: 0.4÷0.75, manganese: 0.95÷1.25, chromium: 1.30+1.65, phosphorus up to 0.027, sulphur up to 0.02, nickel up to 0.3, copper up to 0.25 and unavoidable impurities, is heated to an austenitising temperature in the range of 900÷940°C and held in this temperature for 10÷45 minutes. Then, the steel is cooled to the isothermal holding temperature in the range of 300÷350°C, higher than the martensite start temperature but lower than the bainite start temperature. The cooling rate from the temperature of austenitising should be high enough to avoid the pearlite reaction, i.e. a rate higher than the critical rate preventing the occurrence of diffusive transformations. In the case of this steel, the cooling rate should be 8°C/s or higher, depending on the size of the element and the chemical composition of the steel. The subsequent annealing at the isothermal holding temperature for a period of 5-8 hours is used in order to complete the bainitic reaction, and then the material is cooled down until the room temperature is reached.

IPC Classes  ?

• C21D 1/20 - Isothermal quenching, e.g. bainitic hardening
• C21D 9/40 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for bearing races

Abstract

This invention relates to a method for the preparation of microporous MOF materials based on [Zn40]6+ is characterized in that in the presence of an organic linker or the mixture of various linkers a mechanic force is applied to molecular oxozinc precursors of the formula L6Zn4O, where ligand L stands for monoanion derived from carboxylic acid, primary or secondary amide of a carboxylic acid, imide, carbamate, diester of phosphoric acid (V), and as organic linker is used an organic ligand containing two or three carboxylic groups and possibly substituted with a functional group from the list: -F, -C1, -Br, -I, -OH, -CN, -N02, -NH2, -SH, -CF3, ether group, linear or branched alkyl C1-C10 group.

IPC Classes  ?

• C07C 51/41 - Preparation of salts of carboxylic acids by conversion of the acids or their salts into salts with the same carboxylic acid part
• C07C 63/28 - Salts thereof

Abstract

Method for purification of ammonia or mixtures of nitrogen and hydrogen, or nitrogen, hydrogen and ammonia, according to which: a) ammonia or a mixture of gases under pressure of from 0.1 to 25 MPa is passed through a column packed with aluminium oxide with a large specific surface area; b) the ammonia or mixture of gases is then passed through a column packed with CaO, NaOH, KOH or an NaOH/KOH melt, separately or in a mixture, at 20 to 70°C and under pressure of from 0.1 to 25 MPa; c) next, the ammonia or mixture of gases is passed through a column packed with activated carbon having a specific area of 100÷3000 m2 /g with sodium, potassium, caesium, magnesium, calcium, strontium, barium or cerium nitrates(V) or nitrates(III) deposited on its surface, separately or in a mixture; the aforementioned steps being realised in a serial process at a gas stream flow rate in the range of 100 dm3/h to 1000 m3/h.

IPC Classes  ?

• C01C 1/02 - Preparation or separation of ammonia
• C01B 3/02 - Production of hydrogen or of gaseous mixtures containing hydrogen
• C01B 3/56 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solids; Regeneration of used solids
• C01B 21/04 - Purification or separation of nitrogen

Abstract

Method for purification of ammonia or mixtures of nitrogen and hydrogen, or nitrogen, hydrogen and ammonia, according to which: a) ammonia or a mixture of gases under pressure of from 0.1 to 25 MPa is passed through a column packed with aluminium oxide with a large specific surface area; b) the ammonia or mixture of gases is then passed through a column packed with CaO, NaOH, KOH or an NaOH/KOH melt, separately or in a mixture, at 20 to 70°C and under pressure of from 0.1 to 25 MPa; c) next, the ammonia or mixture of gases is passed through a column packed with activated carbon having a specific area of 100÷3000 m2 /g with sodium, potassium, caesium, magnesium, calcium, strontium, barium or cerium nitrates(V) or nitrates(III) deposited on its surface, separately or in a mixture; the aforementioned steps being realised in a serial process at a gas stream flow rate in the range of 100 dm3/h to 1000 m3/h.

IPC Classes  ?

• C01C 1/02 - Preparation or separation of ammonia
• C01B 21/04 - Purification or separation of nitrogen
• C01B 3/02 - Production of hydrogen or of gaseous mixtures containing hydrogen
• C01B 3/56 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solids; Regeneration of used solids

Abstract

The subject matter of invention is a method for obtaining a tissue engineered product for the reconstruction and regeneration of bone tissue, the tissue engineered product, and its applications. In more detail: the invention represents the method for obtaining the tissue engineered product in cell culture conditions in vitro on degradable material. The product consists almost entirely of natural components, which are produced by cells seeded on a resorbable material. When the cells come from the donor who is also the recipient of the graft, the product is composed of his/her own biological material. Such composition ensures immunological compatibility, which does not occur in the case of biological material obtained from an incompatible donor or when the biological material is of animal origin, which is often the case in current clinical practice.

IPC Classes  ?

• A61L 27/18 - Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• A61L 27/38 - Animal cells