888results about How to "Efficient retention" patented technology

A microfluidic system includes a bubble valve for regulating fluid flow through a microchannel. The bubble valve includes a fluid meniscus interfacing the microchannel interior and an actuator for deflecting the membrane into the microchannel interior to regulate fluid flow. The actuator generates a gas bubble in a liquid in the microchannel when a sufficient pressure is generated on the membrane.

The invention relates to a process for the production of a molded porous ceramic article containing β-SiC, which process comprises the following steps: the preparation of a molded article containing silicon and carbon and the subsequent pyrolysis and siliconization of the article containing silicon and carbon to form SiC. The invention further relates to a molded porous ceramic article containing SiC which has been produced from a molded article containing silicon and carbon.

The disclosure relates to composite nonwoven fibrous web including an embedded phase having a population of particulates forming a substantially continuous three-dimensional network, and a matrix phase comprising a population of fibers forming a three-dimensional network around the particulates. The disclosure also relates to methods of making a composite nonwoven fibrous web including forming an embedded phase having a population of particulates in a substantially continuous three-dimensional network, and forming a matrix phase comprising a population of fibers forming a three-dimensional network around the particulates. Articles made from a composite nonwoven fibrous web prepared according to the methods as described above are also disclosed. In exemplary embodiments, the articles may include gas filtration articles, liquid filtration articles, sound absorption articles, surface cleaning articles, cellular growth support articles, drug delivery articles, personal hygiene articles, and wound dressing articles.

A process and method which ‘locks in’ three-dimensional texturing added to a paper web by virtue of an adhesive material which is printed onto the surface of the web is generally disclosed. The adhesive may be applied to the web either before, during, or after the web is molded to increase the surface texture. The adhesive may be applied at relatively low pressure so as to preserve surface texture without significant deformation of the web. The cured adhesive material inhibits the web from reassuming a two-dimensional state or may contribute additional texture by rising above the surface of the web. This process may not only increase the bulk of the web when dry and wet, but also increase the wet resiliency, the wet strength, and the tactile properties of the web.

A hand tool has an elongated shank with a handle at one end and a bit holder at the other end, the bit holder including a cylindrical body having a distal end surface and an axis, the body having an axial bore formed in the end surface of non-circular transverse cross section and terminating at an inner end surface. A neodymium permanent magnet is freely received in the bore and retained against the inner end surface by a thin circular retainer, formed of metal or plastic, which is interference-fitted in the bore. Both flat, disk-like and concave, bowl-shaped retainers are disclosed. A shock-absorbing cushion may be disposed between the magnet and the inner end surface of the bore. A bit formed of magnetizable material is mateably received in a socket portion of the bore and retained in place by the magnet. The portion of the bore receiving the magnet may have a different cross section from the socket portion. The magnet may be disposed in an encapsulation which interference fits in the bore.

A wall structure adapted to be fabricated in sections or modules and comprises an upper member, a lower member, a plurality of studs interconnected between the upper and lower members with respective studs including openings therein, and at least one diagonal brace member or strap extending diagonally across the wall structure. In one embodiment the strap is extended to opposed corner areas where opposed end portions of the strap are fastened to a portion of the upper or lower member and to a portion of an adjacent column or stud.

A container (1) for the cultivation of plants is described, the container (1) comprising an inner container (2) for housing a plant cultivation medium (C), an outer container (3) fixed around the inner container (2) and provided with a bottom wall (5) arranged at a predetermined distance (d_f) from the bottom wall (5) of the inner container (2), the outer container (3) defining with the inner container (2) an airspace (7) substantially sealed in a fluid-tight manner, wherein a storage zone (A) of an irrigation liquid (L) is defined, and an elongated element (10) for the capillary upwelling of the irrigation liquid (L) towards said cultivation medium (C). The container (1) of the invention enables to provide the plant housed in the cultivation medium (C) with the proper quantity of irrigation liquid (L) as a function of the plant needs.

A closure seal for doors, hatches and the like comprising a pneumatically inflatable sealing element of generally known configuration housed in a specially constructed channel-shaped retainer. The sealing element comprises a flat, relatively stiff base portion of predetermined width and a flexible portion comprising spaced apart side walls, joined with the base, and an outer wall joining with the side walls to form a hollow expandable section. The base forms shoulders where it joins with the side walls. A retaining channel, formed of sheet metal and of generally U-shaped cross section, receives the sealing element and is formed with longitudinally spaced apart, opposed, inwardly projecting elements forming longitudinally spaced apart constrictions of slightly less width than the base of the sealing element. The sealing element is inserted in the retaining channel, with the base of the element being forced through the constrictions, and thereafter is retained in the channel by engagement of the shoulders of the base by the spaced apart projection pairs.

The invention provides a method for producing biogas through high-solid two-phase three-stage anaerobic digestion by using perishable organic wastes, which comprises the following steps: the perishable organic wastes are hydrolyzed in a hydrolysis acidogenic reactor, and a mixture obtained after hydrolysis is acidified to generate a large number of organic acid products with low molecular weight; the bottom of the hydrolysis acidogenic reactor is communicated with the bottom of a methanogenic reactor through a circulation pump and a pipeline; the top of the methanogenic reactor is communicated with the top of the hydrolysis acidogenic reactor; and the acetic acid producing reaction is carried out in the methanogenic reactor and the methane producing reaction is continuously carried out. The invention can separate the hydrolysis acidogenic process from the acetic acid and methane producing process in the anaerobic digestion process so as to prevent organic acids generated by the perishable organic wastes from inhibiting methanogenesis. The device has simple processing procedure, low cost, easy maintenance and stable and reliable performance, is suitable for anaerobic digestion treatment of various perishable organic wastes, and has highly efficient and stable biogas production capacity of the perishable organic wastes through the anaerobic digestion.

A jointing compound or plaster for construction elements, particularly paper-faced plasterboards. This plaster includes, in percentages by weight with respect to the total weight of plaster 50 to 85% of a mineral filler; 1 to 20% of an organic binder dispersible in an aqueous phase; 1 to 15% of a silicate-based agent other than the mineral filler; 0.2 to 5% of a hydrophobic agent which is a silicone derivative; 0.05 to 5% of polyvinyl alcohol; and water to make up to 100%. A method of producing a work such as a partition, a wall covering or a ceiling is also disclosed.

The ground anchor includes a shaft having a pointed lower end, an embossed section extending between lower and upper portions of the shaft to retain the threaded upper portion above ground, at least one helical blade attached to the lower portion, a stabilizer cap mounted concentric on the upper portion, the cap having an outer diameter greater than the helical blades and having a plurality of spikes, a first and second securing member threaded onto the upper portion for holding the stabilizer cap against the embossed section and rotating the shaft into and from the ground, the second securing member having an outer diameter less than the first securing member and an interchangeable mount threaded to the upper portion. The interchangeable mount having a housing for covering the securing members and the upper portion and optionally having an attachment(s) extending therefrom.

A new apparatus for design and scale-up of photocatalytic and thermocatalytic processes is disclosed. The apparatus is based on optimizing photoprocess energetics by decoupling of the process energy efficiency from the DRE for target contaminants and is applicable to both low- and high-flux photoreactor design and scale-up. The low-flux apparatus is based on the implementation of natural biopolymeric and other low-pressure drop media support for titanium dioxide and other band-gap photocatalysts and is further based on the implementation of multifunctional metal oxide aerogels and other media in conjunction with a novel rotating fluidized particle bed reactor.

The invention relates to a burner comprising two half shells, one of which is perforated, that are tightly joined together along at least a portion of their edges, so as to form a tubular body communicating with a venturi tube. At least two corresponding ends of the two half shells have a truncated profile, providing the tubular body has at least one truncated end. The invention also relates to a venturi tube for said burner that is composed of two half shells The invention further relates to a mounting for a thermocouple and for an igniter of said burner, the mounting having coupling means that cause mutual contact surfaces to be oriented in at least three non-parallel planes and that prevent mounting rotation, so that the position thereof is accurately defined. The invention also relates to a process for fabricating said burner.

An object of the present invention is to prepare substances which are excellent in delivery and enable drugs to be retained in a body effectively over a long period and to construct a drug delivery system using the substances. When the delivering substance which is obtained by reacting polyalkylene glycol or a reactive derivative thereof, a phospholipid and a drug with each other to form covalent bonds is administered systemically or topically, the substance is retained at a target site in a body for a long period, thereby making it possible to sustain drug efficacy over a long period by a single administration.

The invention relates to revetment combination system that has cutoff purifying function to the river rainfall runoff surface contaminating material. It sets non-sand concrete curbstone at the intersection of road and bank slope, a catch water channel is set at one side of intersection road, where coarse sand bedding is paved. Crushed stones are filled in the channel, and the top of channel is sealed by non-sand concrete. On the band slope toward water side paves coarse sand, crushed stone of different thickness, and ecology brick. Cement laid stone masonry breast wall is set at basal slope, and growing plant at the bank slope. It increases the residence time for runoff in the system and takes purification to it.

Methods for steady state operation of an upflow anaerobic digester using organic matter that contains a portion of solid, non-digestible matter include (1) providing an upflow anaerobic digester, (2) providing a bacterial culture in the upflow anaerobic digester for the breakdown of organic matter, (3) introducing an influent into the upflow anaerobic digester, wherein the influent comprises a biodegradable component, a liquid component, and an amount of solid non-digestible matter, (4) operating the upflow anaerobic digester in a steady-state, (5) accumulating the solid, non-digestible matter in the upflow anaerobic digester, (6) and removing a portion of the accumulated solid, non-digestible matter from the upflow anaerobic digester through the bottom of the upflow anaerobic digester while maintaining steady-state operation of the upflow anaerobic digester. Steady-state operation of the upflow anaerobic digester is maintained by selecting a percentage of the total volume of the liquid and material that are flushed from the digester for a given period of time so as to preserve the steady-state of the bacterial culture.

A retention system in which rotor pole pieces are retained within complementarily shaped channels in a rotor hub, permanent magnets are secured between the pole pieces and within clamp members, and wedge-shaped pieces are used to apply positive locking forces along the axial length of each clamp member and of adjacent pole pieces. A curable resin preferably in disposed within gaps between the permanent magnets and the clamp members.

A filter-type gas separating-cleaning apparatus with quickly moving filter layer features that its filter cylinder rotating at high speed is composed of external filter net, supporting posts, internal filter net, shaft sleeve, shaft disk and supporting rings, and the gas containing solid particles and/or liquid drops is filtered by said filter cylinder. Its advantage is use of big-mesh filter material to remove fine solid particles and/or liquid drops, resulting in high filter speed, and easy cleaning.

A method and arrangement for securing a wheel to a load bar of a load carrier attached to a carrying vehicle includes a mounting assembly secured to a load bar of the load carrier. A wheel support assembly is pivotally connected to the mounting assembly such that the wheel assembly can be raised and lowered as needed. The wheel support assembly includes a pair of support bars configured for receiving a wheel therebetween. The support bars maintain a substantial parallel relationship with respect to one another and each includes an angled slot for receiving opposite ends of an axle of a wheel therein. Pivoting of the wheel assembly may be arrested by means of a gripping assembly.