Abstract: In order to provide a filter installation, including a filter device for cleaning a raw gas flow loaded with paint overspray, the filter device including a filter element, on which paint overspray from the raw gas flow loaded with paint overspray is configured to be deposited together with the auxiliary filter material fed to the raw gas flow, a receiving container for receiving a system of paint overspray and auxiliary filter material and a removal device for removing at least a part of the system of paint overspray and auxiliary filter material from the receiving container, by means of which filter installation a material-saving, efficient filtering operation is configured to be carried out, it is proposed that the filter installation includes a processing device for processing the system of paint overspray and auxiliary filter material.

Abstract: The present invention provides a cleaning device (1) for cleaning the air-ionizing part (4) of an electrode (3), said device comprising a cleaning member (5) arranged to be in physical contact with the said air-ionizing part of said electrode, the air-ionizing part of electrode and the cleaning member being arranged to slide relative to each other. The cleaning device further comprises an actuator (6, 8, 9) arranged to activate the relative motion between said air-ionizing part (4) of the electrode (3) and the cleaning member (5). There is also provided an ionization electrode comprising an air-ionizing part and the cleaning device, as well as a ultrafine particle sensor, an air ionizer or an electrostatic air cleaner comprising such an electrode.

Abstract: A tank system for capturing fluids from an oil or gas well. The system comprises a series of tanks adapted to step down the temperature and pressure of well products from a fossil fuel well while removing gas products until the liquid products contain less dissolved gas in a tank than they could contain at ambient temperature and pressure. Therefore, no venting of gas takes place during the separation. An oil-gas separator is provided within the tank system to separate organic products from non-organic products. Gas products may be flared or delivered for further processing.

Abstract: A filtering device including an inlet orifice, an outlet orifice, and a housing, the housing including an inlet compartment and a filtering element arranged in the housing between the inlet compartment and the outlet compartment so as to filter the flow of air, where the filtering device includes a deflector arranged in the inlet compartment and opposite the inlet orifice so as to deflect the flow of dirty air penetrating into the inlet compartment.

Abstract: The capsule (2002) according to the invention comprises a side wall (2006) extending along a longitudinal axis (X-X), an inlet wall (2008) closing a first rear end of the side wall (2006), and an outlet wall (2010) closing a second front end of the side wall (2006), delimiting a chamber (2014) for receiving a substance for preparing a drink. According to one aspect of the invention, the outlet wall (2010) and the inner surface (2028) of the side wall (2006) comprise complementary raised snapping portions making it possible to snap the outlet wall (2010) in the front end of the side wall (2006). Applicable to capsules for extracting coffee, tea, hot chocolate, etc.

Abstract: The brewing comprises: a brewing chamber with at least two brewing chamber portions (121, 123; 215B, 227; 321, 323) movable one with respect to the other; a water heater (115; 207; 315); and a structural frame supporting said at least two brewing chamber portions (121, 123; 215B, 227; 321, 323), on which forces generated by the pressurized water in the brewing chamber during brewing are discharged. The structural frame comprises two side components (111; 205; 311) arranged sideways of said brewing chamber, and two end components (113, 115; 221, 207; 313, 315) mechanically constrained to the side components (111; 205; 311). The side components and the end components form a closed structure, whereto the water heater is in turn constrained independently independently from the first brewing chamber portion and adjacent thereto. Forces generated by the pressurized water in the brewing chamber during brewing are discharged on the water heater (115; 207; 315).

Abstract: The brewing unit comprises a brewing chamber comprising at least two brewing chamber portions (421, 423) movable one with respect to the other, and a capsule guide for guiding a capsule (C) from a capsule insertion aperture (460) to a brewing position. The capsule guide comprises a pair of capsule guiding channels (464), configured and arranged for slidingly engaging a flange (Fc) of the capsule (C) and a respective capsule retention member (466) arranged at the lower end of each capsule guiding channel (464) for retaining the capsule in the brewing position before closing the brewing chamber and for disengaging the capsule (C) when the brewing chamber portions (421, 423) are moved apart after completion of a brewing cycle. Both brewing chamber portions (421, 423) are movable with respect to the capsule guide from an open position, for receiving a capsule there between, to a closed brewing position, and vice-versa.

Abstract: A wine aerator comprises a spherical aerating member and an open-mouthed hemispherical receptacle which releasably receives the aerating member. The receptacle has an inner surface, an outer surface, and an outlet. Projections project from the inner surface of the receptacle and support the aerating member within the receptacle. Ribs extend along the outer surface of the receptacle and space the receptacle apart from a wine glass.

Abstract: A system and method for frying one or more food items. The system comprises a frying tank (2) having an open state in which the one or more food items may be introduced into the tank (2) and a closed state in which the interior chamber is hermetically sealed. A cooking oil delivery system (6) delivers cooking oil to the tank (2) so as to completely fill the tank with cooking oil.

Abstract: An upright electric roaster and smoker having an air flow passage outside of, and adjacent to, the food heating chamber. The air flow passage has an upper inlet in the heating chamber so that air flows upwardly through the heating chamber from a bottom air inlet and subsequently flows downwardly through the air flow passage from the upper inlet of the passage to an outlet located in a lower portion of the passage.

Abstract: A heat control for an oven permits selective overriding of a holding cycle heating recipe with a boost heating recipe to deliver a boost of heat to food held in a heating compartment. Various types of boost heating recipes may be used. A heat control for an oven graphically displays stages of completion of a preheat cycle on an operator interface. Associated ovens and methods are also disclosed.

Abstract: A juice extraction module for a juicer is provided, which includes a container formed with a juice discharge port, a sieve positioned inside of the container, a screw positioned inside of the sieve to extract juice from a material, and a lid coupled to a top end of the container and formed with a input port through which the material is input. The juice extraction module includes a crushing portion formed on a top end of the screw to be narrowed upward, the crushing portion having a crushing blade formed thereon; and a crushing processing portion connected to the input port and formed in a bottom of the lid to be concave for accommodating the crushing portion.

Abstract: The present description discusses apparatuses and methods for applying straps around a bundle of objects by applying a variable force to tension the strap around the bundle of objects and then actuating a series of cams to control the sealing of the strap around the bundle of objects. The apparatus includes a track assembly extending substantially about a strapping station. The track assembly is adapted to receive a strap and to release the strap during a tensioning operation. An accumulator delivers strap to the track assembly. The accumulator has a strap conveyor system that defines a strap path and an accumulator container adjacent to the strap path. Strap can be accumulated in the accumulator container and subsequently delivered to the track assembly.

Abstract: [Object] One object is to provide a primer composition composed of an amorphous carbon material and used for forming a primer layer that tightly binds with fluorine-containing silane coupling agent. A primer composition according to an embodiment of the present disclosure is composed of an amorphous carbon material containing at least one element of silicon, oxygen, and nitrogen.

Abstract: A variable printing machine for printing images different in top-bottom length with a plate and a blanket cylinder changed in diameter, is provided in which the plate and blanket cylinders and an impression cylinder can be brought into a proper state of contact with one another. Each of a plate cylinder shaft 20 and a blanket cylinder shaft 30 has its one axial end portion supported in a cantilever structure from a main frame 1 of the machine. When the plate cylinder sleeve 21 and the blanket cylinder sleeve 31 are each exchanged with one of different diameter, the blanket cylinder shaft 30 and the impression cylinder 4 are moved relative to each other so that the plate cylinder 2 and the blanket cylinder 3 may be brought into a proper state of contact with each other and so are the blanket cylinder 3 and the impression cylinder 4.

Abstract: In an ink supply method in an ink supply apparatus including an ink fountain storing, a plurality of ink fountain keys, an ink fountain roller, an ink ductor roller, and an ink roller group, the throw-off operation of an ink form roller positioned at the end of the ink roller group is performed after the end of a print job using a preceding printing plate. The ink feed operation of the ink ductor roller is stopped after the end of the print job using the preceding printing plate. The ink roller group is divided into a plurality of roller subgroups after the end of the print job using the preceding printing plate. The ink in some roller subgroups out of the divided roller subgroups is scraped and removed by an ink scraping member. An ink supply apparatus is also disclosed.

Abstract: In an ink film thickness distribution correction method in an ink supply apparatus including an ink fountain, a plurality of ink fountain keys, an ink fountain roller, an ink ductor roller, and an ink roller group including at least one ink form roller, the throw-off operation of the ink form roller positioned at the end of the ink roller group is performed during test printing or final printing. The ink feed operation of the ink ductor roller is stopped during test printing or final printing. The ink roller group is divided into a plurality of roller subgroups during test printing or final printing. The ink in some roller subgroups out of the divided roller subgroups is scraped and removed by an ink scraping member. An ink film thickness distribution correction apparatus is also disclosed.

Abstract: A stamp structure includes a stamp frame having a plate part. The plate part includes a plurality of holes. The plurality of holes are configured to facilitate the adsorption of an object to the plate part during a transfer of the object from a donor substrate to a target substrate.

Abstract: To provide a composition for laser engraving that can give a relief printing plate having excellent ink laydown and that has excellent rinsing properties after laser engraving. A composition for laser engraving, the composition that comprises (Component A) an acrylate oligomer; (Component B) a thermopolymerization initiator; and (Component C) at least one of the compounds represented by Formula (1) to Formula (7); the composition not comprising or comprising at more than 0 mass % but less than 2 mass % relative to the total mass of the composition (Component D) a resin having a weight-average molecular weight of at least 10,000, wherein R1 to R18 independently denote a hydrogen atom, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, a heterocyclic group, or a substituted heterocyclic group, L2 denotes a divalent organic group, L3 denotes a trivalent organic group, and L4 denotes a tetravalent organic group.

Abstract: Disclosed are a resin composition for laser engraving, comprising (Component A) a resin that is a plastomer at 20° C. and contains no ethylenically unsaturated group, and (Component B) a crosslinking agent, a relief printing plate precursor for laser engraving and a process for producing the same using the resin composition, and a relief printing plate and a process for making the same using the resin composition.

Abstract: An image forming apparatus includes a notification section that provides information to a user; a sheet feeding section that feeds a sheet; an image forming section that forms an image on a sheet; a first conveyance section that conveys a sheet fed from the sheet feeding section to the image forming section; a displacement detection section that detects a displacement of a sheet in the first conveyance section; a displacement correction section that corrects a lateral position of a sheet on the basis of a result of detection by the displacement detection section; and a control section that controls the notification section to notify an occurrence of a displacement error which cannot be corrected by the displacement correction section and a cause of the displacement error when the displacement error is detected by the displacement detection section.

Abstract: Here is disclosed a reusable pneumatic distraction device having a housing which encloses a first and a second gas reservoir which are configured to contain a quantity of high and low pressure gas, respectively. A valve member seals off an exhaust in the first gas reservoir, the valve member movable between a closed position sealing the exhaust and an open position. The device also includes a pneumatic drive for urging the valve towards its opened position. The pneumatic drive configured to apply a lower urging force followed by a larger urging force as the valve opens. The device is also provided with a lock pin releasably coupled to the valve for preventing the valve from moving towards its open position. Finally, the device includes a delay mechanism to delay the opening of the piston when the lock pin is released.

Abstract: Shotshell type ammunition includes a hull, a wad member disposed within the hull, and at least one projectile disposed within at least partially the hull. The hull has a rimless proximal end that includes a primer for firing the ammunition. The hull also has a seat surface for seating the hull against a complementary seat surface in a firing chamber of a firearm. The seat surface is located a distance from an outer end surface of the hull at the rimless proximal end. The hull further includes an outer side surface extending from the rimless proximal end of the hull to the seat surface of the hull. Methods of fabricating such ammunition include forming such a hull, and providing a wad member and one or more projectiles at least partially within the hull.

Abstract: Shotshell type ammunition includes a hull, a wad member disposed within the hull, a hollow nose member, and at least one projectile disposed within the hollow nose member and the hull. The hull has a rimless proximal end that includes a primer for firing the ammunition. The hull also has a seat surface for seating the hull against a complementary seat surface in a firing chamber of a firearm. The seat surface is located a distance from an outer end surface of the hull at the rimless proximal end. The hull further includes an outer side surface extending from the rimless proximal end to the seat surface. Methods of fabricating such ammunition include forming such a hull, providing a wad member within the hull, inserting at least one projectile into a hollow nose member, and inserting the hollow nose member at least partially into the hull.

Abstract: The present invention relates to a composite material for the production of ecological ammunition characterized in that it comprises a) a metal matrix formed by a zinc and bismuth alloy, zinc and aluminum alloy, tin and bismuth alloy or zinc and tin alloy and a metal selected from aluminum, bismuth and the combination thereof and b) reinforcing metal particles distributed therein selected from wolframium, ferro-wolframium, ferro-wolframium carbides, wolframium carbides, wolframium oxides and ferro-wolframium oxides, subjected to oxidation before being added to the metal matrix.

Abstract: A bullet system including a bullet body with a tail portion engaged with a polymer cup that provides enhanced engagement of the barrel upon firing. The bullet system may have a radial retracted state that corresponds to an elongated axial state of the bullet system that allows the cupped bullet to be fed down the barrel at a reduced diameter with reduced engagement with the barrel. The radial expansion of the bullet system occurs upon axial length reduction of the bullet system by axial compression. The axial compression can occur upon firing of the propellant or when loading with the ramrod. The bullet system can provide a tactile seat force indicator tip insert within the tip of the bullet body that provides a tactile sensation when the bullet is properly seated against the propellant charge. A cutting edge may be provided for scraping the barrel upon insertion of the bullet.

Abstract: A suspended coach drive bogie advantageously provides several enhancements to existing systems, including junction switching, higher speeds, reserved energy storage for emergency operations and for assistance with meeting peak grid electrical load demand, cooperative computing with multiple bogies, and self-diagnostics of the bogies which serves to make systems employing the same more reliable, faster, safer, and more energy efficient than other automated people movers.

Abstract: An exemplary guideway mechanism includes two branches, a plurality of branches each including two parallel rails, a plurality of groups of connecting blocks including four connecting blocks arranged at four corners of an imaginary square, and a plurality of supporting brackets each connecting one corresponding group of connecting blocks. Adjacent ends of the rails of each branch respectively connect two adjacent connecting blocks. Each of two ends of each rail connects one corresponding connecting block. Two adjacent rails respectively located in two adjacent branches are perpendicular to each other and connected together by a respective connecting block of one corresponding group of connecting blocks. The other two rails respectively located in the two adjacent branches connect another two respective connecting blocks of the one corresponding group of connecting blocks. The whole guideway mechanism is in the form of a grid.

Abstract: An exemplary guideway mechanism includes four branches each including two parallel rails, four groups of connecting blocks each including four connecting blocks arranged at four corners of an imaginary square, and four supporting brackets each connecting one corresponding group of connecting blocks. Adjacent ends of the rails of each branch respectively connect two adjacent connecting blocks. Each of two ends of each rail connects one corresponding connecting block. Two adjacent rails respectively located in two adjacent branches are perpendicular to each other and connected together by a respective connecting block of one corresponding group of connecting blocks. The other two rails respectively located in the two adjacent branches connect another two respective connecting blocks of the one corresponding group of connecting blocks. The whole guideway mechanism is frame-shaped.

Abstract: A transport system including at least one guideway, at least one levitation generator, at least one lifting member, at least one drive generator, and at least one drive member is presented. The at least one guideway, at least one levitation generator, at least one lifting member, at least one drive generator, and at least one drive member can each be implemented with other systems. The at least one drive generator is configured to: generate a driving magnetic flux; move with a corresponding at least one drive member; and be driven relative to the at least one drive member by the driving magnetic flux. The at least one levitation generator can be configured to: generate a levitating magnetic flux; move within a corresponding at least one lifting member; and elevate above a rest position relative to the at least one lifting member in response to the levitating magnetic flux.

Abstract: A suspended coach transit system comprising suspended coaches incorporating self-contained emergency evacuation means, dynamically balanced sway control for passenger comfort, system-wide communications for autonomous movement, radiant passenger heating and cooling and aerodynamic drag reduction for maximization of energy efficiency which serve to make the related products more comfortable, faster, safer and more energy efficient.

Abstract: A door unit for rail vehicles includes one or two sliding doors, means for supporting and guiding each sliding door between a closed position and an open position, and means for controlling the movement of each door between a closed position and an open position. The supporting, guiding and controlling means are carried on a support unit which defines an independent module with the doors, assembled prior to being mounted on the vehicle structure. The support unit includes at least one frame connectable to the vehicle structure and supporting each door, and the respective guiding and controlling means. The frame includes an upper cross-member, a lower cross-member and two uprights connecting these cross-members between them, in such a way to form a perimeter frame that defines a doorway, and which surrounds the four sides of the door or doors, when they are in the closed position.

Abstract: An autorack railroad car has a housing surmounting an underframe. The underframe defines a first or main deck. The housing, or “rack” defines at least one additional deck spaced upwardly from the main deck. The housing has end doors. The end doors may be folding end doors, such as a tri-fold hinged door. When closed, the door may be secured by latches at top and bottom. The car may have a dynamic response member, such as a damper, or stop, mounted between one or more panels of the door and the adjacent end of the deck. The dynamic response member may function either to provide damping to the door in vibration, or may function to define a vibration nodal point intermediate the main deck and the roof, or both.

Abstract: An autorack railroad car has a housing surmounting an underframe. The underframe defines a first or main deck. The housing, or “rack” defines at least one additional deck spaced upwardly from the main deck. The housing has end doors. The end doors may be folding end doors, such as a tri-fold hinged door. When closed, the door may be secured by latches at top and bottom. The car may have a movable sill-step, or foot-hold that is movable between a deployed or extended position, and a stowed or retracted position. The movable step may be mounted to a panel of the door. The movable step may be biased away from any position between the stowed and retracted positions. The movable step may be free of springs that may break, and free of pins or other items requiring careful removal and replacement. The movable parts of the step assembly may be captured by the stationary parts to prevent them from coming loose or falling off.

Abstract: Provided herein are compositions and methods including hydraulic cement, supplementary cementitious material, and/or self-cementing material. Methods for making the compositions and using the compositions are provided.

Abstract: Provided is a photocurable ink jet ink, which contains maleimide compounds and with which low-temperature precipitation is controlled. In concrete terms, provided is a photocurable ink jet ink containing a first maleimide compound represented by general formula (1), a second maleimide compound having a chemical structure different from the first maleimide compound, and at least one butene diacid derivative.

Abstract: A method for producing a superhydrophobic surface, which includes cellulosic material. The cellulosic material includes nanocellulose particles and the method includes adding the nanocellulose particles to a surface and hydrophobizing the nanocellulose particles with a modifier before, during and/or after the addition of the particles. The invention further relates to a hydrophobic coating.

Abstract: The present invention relates to a topical film-forming composition including, in a pharmaceutically acceptable medium: 5 to 30 wt % of ethyl cellulose; 0.1 to 10 wt % of an auxiliary film-forming agent; 0.1 to 20 wt % of one or more triacids, at least one of which is boric acid; and 60 to 95 wt % of an organic solvent, the percentages being expressed by weight relative to the total weight of the composition. The invention also relates to the use of such a composition in a method for treating herpes, in particular herpes labialis.

Abstract: The present invention generally relates to asphalt mixes with a high content of recycled bituminous materials comprising a binder modified with glycerol. The present invention further relates to a method for preparing said asphalt mixes and to the use of said asphalt mixes as materials for making courses and/or surfacing for road construction and/or civil engineering. The present invention also relates to the use of glycerol as a correcting agent for the workability and/or of the thermal cracking resistance and/or of the rutting resistance of an asphalt mix with a high content of recycled bituminous materials.

Abstract: Partially fluorinated ketones are provided that include a terminal alkyl group having from 1 to 6 carbon atoms bonded to a carbonyl group and a hydrofluoroether moiety having from 2 to 4 carbon atoms that contains at least one hydrogen substituent. The hydrofluoroether moiety is bonded to the carbonyl group with a carbon-carbon bond. The ether oxygen is bonded to a carbon atom that is at least two carbon atoms removed from the carbonyl group. Additionally, a fluorinated alkyl group having from 1 to 10 carbon atoms is bonded to the ether oxygen of the hydrofluoroether moiety. These partially fluorinated ketones can be used in a wide variety of electronics applications.

Abstract: Provided are aminoalcohol compounds for use as additives for paints and coatings. The compounds are of the formula (I): wherein x, R, R1, R2, R3, R4, R5, R6, and RA are as defined herein.

Abstract: Compositions and methods for producing a manufactured product, a method for making a liquid absorbent, and processes for disposal of flammable liquids with a flue gas desulfurization by-product. The compositions for the manufactured products combine a binder and the by-product. The composition contains a greater percentage by weight of the by-product than the binder. The methods for producing manufactured products include dewatering the gypsum-depleted waste stream to reduce a water content, and forming the manufactured product. The method for making a liquid absorbent includes dewatering, granulating, drying, heating, and packaging a granulated gypsum-depleted composition as the liquid absorbent. The processes for disposal of flammable liquids include distributing a by-product into contact with flammable liquid, absorbing the liquid, transporting, and igniting the flammable liquid. The artificial soils are a combination of by-product and animal waste, human waste, or another bio-solid.

Abstract: Methods and compositions are provided that relate to cementing operations, including a method of cementing that may comprise providing a settable composition that may comprise wollastonite, pumice, a calcium-ion source, and water, wherein the wollastonite may be present in an amount in a range of from about 25% to about 75% by combined weight of the wollastonite and pumice, and wherein the pumice may present in an amount in a range of from about 25% to about 75% by combined weight of the wollastonite and pumice. Embodiments of the method further may comprise allowing the settable composition to set.

Abstract: To provide a method and facility for enabling CO2 gas generated in a cement manufacturing facility to be separated and recovered at a high concentration. To this end, according to the present invention, the calcination of a cement material and the recovery of CO2 gas generated in a calciner are performed by one of the following steps of: [1] superheating the cement material before calcination to at least the calcination temperature thereof in a superheating furnace and then mixing the superheated cement material with a new cement material before calcination in a mixer/calciner; [2] mixing, in the mixer/calciner, the cement material before calcination with a part of high-temperature cement clinker discharged from a cement kiln; and [3] using an externally heated calciner.

Abstract: An expandable podium has a first part (2) which includes a supporting base panel (7) and a rear panel (8) rising from the base panel, a second part (3) which includes a top panel (9) and a front panel (10) depending from the top panel, wherein in expanded mode of the podium a lower hinge (5) links a bottom corner (10?) of the front panel to the nearest forward corner of the base panel and an upper hinge links a top corner (8?) of the rear panel to the nearest rearward corner of the top panel, each of the upper and lower hinges forming an elongate element the ends of which are connected pivotally to the appertaining base, top, front and rear panels about a respective pivot axis. The pivot axes extend at converging directions that intersect in a common point of intersection, beyond the rear panel.

Abstract: A deck table is provided that includes a table section and a clamping mechanism that are attachable to a number of vertical posts in order to position the support surface on the posts in a horizontal position. The table section includes support surface and a bottom support that can be positioned against the posts and engaged by the clamping mechanism that extends between the posts. The clamping mechanism is rotatably attached to the table section and can be releasably engaged with the vertical posts to enable the table to be readily repositioned and/or removed from the posts, as desired, without disassembly of the component parts of the table.

Abstract: A pallet device for storing and shipping goods is disclosed. The pallet device may include a planar surface having a top and a bottom. The pallet device further may include cross braces having two openings extending therethrough and separated by a partition. The partition includes a row of slits that each extend along the depth of the cross brace. The lower surface of the cross brace also may include a row of slits that each extend along the width of the cross brace. The cross brace is secured to the bottom of the planar surface. The pallet device also includes a plurality of ribs that are each inserted into a slit of the partition as well as a slit of the lower surface of the cross brace.

Abstract: A modular mounting system is provided to store equipment in a variety of configurations. The system includes a mounting base configured to be rigidly mounted to a surface and a base member removably attached to the mounting base. The system further includes a coupling mechanism that removably holds the base member relative to the mounting base.

Abstract: A lockbox includes a body and a lid connected to body and pivotable between a closed position and an open position. The body defines an enclosure and includes a body aperture and the lid includes a first lid aperture positioned adjacent to the body aperture when the lid is in the closed position, such that insertion of a padlock shackle through the body aperture and the lid aperture prevents pivoting movement of the lid from the closed position to the open position. The lockbox includes a slot intersecting one of the body aperture and the lid aperture for insertion of an item into the enclosure when the lid is in the closed position. A padlock shackle inserted through the body aperture and the lid aperture prevents passage of an item through the slot.

Abstract: Coal-fired power station with controller for air-fuel ratio in combustion of ground coal, with pneumatic conveying of ground coal to burners of power station. An electrode (10) with average radius rm with 0.1 mm?rm?1.2 mm arranged in channel carrying air in flow direction of air upstream of sensors (11) of correlation measurement device (12) at distance l with 1× unobstructed width of flow cross-section of the channel carrying the air<l<10× unobstructed width of the flow cross-section of the channel carrying the air in the region of the sensors (11). A counter electrode (13, 25) electrically operative relative to electrode (10) is arranged in upstream of sensors (11), and electrode (10) and counter electrode (13, 25) are connected with different poles of a high-voltage source (9) configured for providing a voltage U of 12 kV?U?20 kV.