274results about How to "Efficient trapping" patented technology

A stentless support structure capable of being at least partly assembled in situ. The support structure comprises a braided tube that is very flexible and, when elongated, becomes very long and very small in diameter, thereby being capable of placement within a small diameter catheter. The support structure is preferably constructed of one or more thin strands of a super-elastic or shape memory material such as Nitinol. When released from the catheter, the support structure folds itself into a longitudinally compact configuration. The support structure thus gains significant strength as the number of folds increase. This radial strength obviates the need for a support stent. The support structure may include attachment points for a prosthetic valve.

Microstructured optical fiber and method of making. Glass soot is deposited and then consolidated under conditions which are effective to trap a portion of the consolidation gases in the glass to thereby produce a non-periodic array of voids which may then be used to form a void containing cladding region in an optical fiber. Preferred void producing consolidation gases include nitrogen, argon, CO2, oxygen, chlorine, CF4, CO, SO2 and mixtures thereof.

A stentless support structure capable of being at least partly assembled in situ. The support structure comprises a braided tube that is very flexible and, when elongated, becomes very long and very small in diameter, thereby being capable of placement within a small diameter catheter. The support structure is preferably constructed of one or more thin strands of a super-elastic or shape memory material such as Nitinol. When released from the catheter, the support structure folds itself into a longitudinally compact configuration. The support structure thus gains significant strength as the number of folds increase. This radial strength obviates the need for a support stent. The support structure may include attachment points for a prosthetic valve.

A particle separation member is provided for use with a cyclone separator. The particle separation member divides the separator into a cyclone chamber and a particle receiving chamber. The cyclone chamber and the particle receiving chamber communicating via a plurality of apertures in the particle separation member.

A filter element having multiple formed layers of filtration media is disclosed. The media are layered so as to form a pore size gradient. The filter element is capable of removing both solid and liquid particulates from a moving fluid stream. The filter element has high strength and compressibility. The layers can be supported on a porous or perforate support to provide mechanical stability during filtering operations. The filtration media layers can be formed into various filter element forms such as panels, cartridges, inserts, and the like.

A particle separation member is provided for use with a cyclone separator. The particle separation member divides the separator into a cyclone chamber and a particle receiving chamber. The cyclone chamber and the particle receiving chamber communicating via a plurality of apertures in the particle separation member.

An adjustable-height bicycle seat post assembly comprises a hollow seat post for supporting a bicycle seat slidably on plastic guides or shims inside a hollow tube. The hollow tube clamps into the frame of a bicycle. A mainspring forces the post upward, but a locking mechanism interconnects the post with the tube in various fixed positions relative to the tube. The locking mechanism includes a housing, which supports a plunger for reciprocating movement into and out of engagement with holes on the post. The locking mechanism is affixed to the outside of the tube to bear shearing forces on the plunger. An endcap on the locking mechanism and a topcap on the tube protect the assembly from foreign debris. The locking mechanism may be manipulated remotely using a magnetic switch assembly or manually using a mechanical assembly. A lost motion coupling is integrated into the locking mechanism and / or actuator assembly to enable the remote actuator to be moved or deployed while the latch remains trapped under the influence of a dominant shear load. The lost motion coupling is also effective to allow an operator to deploy the remote actuator at any convenient time prior to a desired change in seat height.

It is an object of the present invention to provide a highly reliable and high-quality semiconductor element by effectively preventing the migration of silver to a nitride semiconductor when an electrode main entirely or mostly of silver having high reflection efficiency is formed in contact with a nitride semiconductor layer. A semiconductor element comprises a nitride semiconductor layer, an electrode connected to said nitride semiconductor layer, and an insulating film covering at least part of said electrode, wherein the electrode comprises: a first metal film including silver or a silver alloy and in contact with the nitride semiconductor layer; and a second metal film completely covering the first metal film, and the insulating film comprises a nitride film.

In an apparatus having an internal combustion engine, an exhaust system for transporting engine exhaust from the engine, a particulate filter disposed in the exhaust system, and a particulate detector disposed downstream of the particulate filter in the exhaust system, a method for monitoring a performance characteristic of the particulate filter, including detecting an increase in exhaust flow in the exhaust system; determining if the increase in the exhaust flow occurs at a rate equal to or greater than a threshold rate of change; and if the increase in the exhaust flow is determined to have occurred at a rate equal to or greater than the threshold rate of change, then determining from a signal received from the particulate detector if a value of a parameter related to particulate matter passing through the particulate filter has a predetermined relationship to a predetermined threshold value that indicates a reduction in filter trapping efficiency.

Disclosed herein are methods to create medical devices and medical devices including bioactive composite structures with enhanced adhesion characteristics. The bioactive composite structures are prepared using anchors that are electrochemically codeposited into a metallic layer that is formed on the surface of implantable medical device followed by the adhesion of a bioactive material-containing coating to the substrate and anchors.

A honeycomb filter including partition walls having a porous partition wall base material and a surface layer provided on only inflow side or both inflow and outflow sides of the partition wall base material, and satisfying the following conditions capable of using as a DPF. The surface layer has a peak pore diameter of from 0.3 μm to 20 μm (exclusive) being equal to or smaller than the average pore diameter of the base material; the porosity of from 60% to 95% (exclusive) when measured by mercury porosimetry being larger than that of the base material; and the thickness L1 of from 0.5% to 30% (exclusive) of the partition wall thickness L2; and mass per filtration area of from 0.01 mg / cm2 to 6 mg / cm2 (exclusive). The base material has an average pore diameter of from 10 μm to 60 μm (exclusive) and a porosity of from 40% to 65% (exclusive).

The present disclosure presents a partially-transparent (see-through) three-dimensional thin film solar cell (3-D TFSC) substrate. The substrate includes a plurality of unit cells. Each unit cell structure has the shape of a truncated pyramid, and its parameters may be varied to allow a desired portion of sunlight to pass through.

A single component traction cleat of co-molded hub and dynamic traction portions includes dynamic traction elements flexible about proximal ends secured inboard of and below a hub periphery having cut-outs through which the elements move when flexed. The hub has a cross-like configuration with spoke-like legs from which static traction elements depend. Locking posts located on the hub spoke legs include a recess between two symmetrical interference sections for receiving a locking tooth on a mating receptacle.

It is an object of the present invention to provide a highly reliable and high-quality semiconductor element by effectively preventing the migration of silver to a nitride semiconductor when an electrode main entirely or mostly of silver having high reflection efficiency is formed in contact with a nitride semiconductor layer. A semiconductor element comprises a nitride semiconductor layer, an electrode connected to said nitride semiconductor layer, and an insulating film covering at least part of said electrode, wherein the electrode comprises: a first metal film including silver or a silver alloy and in contact with the nitride semiconductor layer; and a second metal film completely covering the first metal film, and the insulating film comprises a nitride film.

A method for the fabrication of a three-dimensional thin-film semiconductor substrate with selective through-holes is provided. A porous semiconductor layer is conformally formed on a semiconductor template comprising a plurality of three-dimensional inverted pyramidal surface features defined by top surface areas aligned along a (100) crystallographic orientation plane of the semiconductor template and a plurality of inverted pyramidal cavities defined by sidewalls aligned along the (111) crystallographic orientation plane of the semiconductor template. An epitaxial semiconductor layer is conformally formed on the porous semiconductor layer. The epitaxial semiconductor layer is released from the semiconductor template. Through-holes are selectively formed in the epitaxial semiconductor layer with openings between the front and back lateral surface planes of the epitaxial semiconductor layer to form a partially transparent three-dimensional thin-film semiconductor substrate.

An electron capture dissociation device to implement a combination of electron capture dissociation and collision dissociation and a mass spectrometer with the use thereof are provided. This device includes a linear ion trap provided with linear multipole electrodes applied with a radio frequency electric field and wall electrodes that are arranged on both ends in the axis direction of the linear multipole electrodes, have holes on the central axis thereof, and generate a wall electric field by being applied with a direct-current voltage, a cylindrical magnetic field-generating unit that generates a magnetic field parallel to the central axis of the linear multipole electrodes and surrounds the linear ion trap, and an electron source arranged opposite to the linear multipole electrodes with sandwiching one of the wall electrodes. The electron generation site of the electron source is placed in the inside of the magnetic field generated by the magnetic field-generating unit.

Novel enhanced products and processes for trapping emboli utilize self-expanding skeletons and biodegradable polymer systems, for example stent-like Nitinol® elements and PLGA, to address longstanding issues related to thrombus capture without deleterious impacts on the vasculature or other negative artifacts of the procedure by at least partial post-use dissolution in situ. Drug coating and elution technologies are included as would be known to those skilled in the art.

An adjustable-height bicycle seat post assembly comprises a hollow seat post for supporting a bicycle seat slidably on plastic guides or shims inside a hollow tube. The hollow tube clamps into the frame of a bicycle. A mainspring forces the post upward, but a locking mechanism interconnects the post with the tube in various fixed positions relative to the tube. The locking mechanism includes a housing, which supports a plunger for reciprocating movement into and out of engagement with holes on the post. The locking mechanism is affixed to the outside of the tube to bear shearing forces on the plunger. An endcap on the locking mechanism and a topcap on the tube protect the assembly from foreign debris. The locking mechanism may be manipulated remotely using a magnetic switch assembly or manually using a mechanical assembly. A lost motion coupling is integrated into the locking mechanism and / or actuator assembly to enable the remote actuator to be moved or deployed while the latch remains trapped under the influence of a dominant shear load. The lost motion coupling is also effective to allow an operator to deploy the remote actuator at any convenient time prior to a desired change in seat height.

A plasma generator for producing plasma under normal pressure by applying a voltage between a ground electrode and a high-voltage electrode, the plasma generator including the ground electrode, the high-voltage electrode, and a dielectric member arranged between the ground electrode and the high-voltage electrode, in which the dielectric member has a structure including a porous ceramic substrate covered with an inorganic dielectric substance.

An apparatus comprising an internal combustion engine, an exhaust system in communication with the engine, a particulate sensor associated with the exhaust system, and a controller in electrical communication with the particulate sensor, wherein the controller is configured to determine a change in a rate of exhaust flow in the exhaust system, to compare the change in the rate of exhaust flow to a preselected threshold rate of change; and if the change in the rate of exhaust flow has a preselected relationship to the preselected threshold rate of change, then to determine a degradation of the sensor.

An apparatus comprising an internal combustion engine, an exhaust system in communication with the engine, a particulate sensor associated with the exhaust system, and a controller in electrical communication with the particulate sensor, wherein the controller is configured to determine a change in a rate of exhaust flow in the exhaust system, to compare the change in the rate of exhaust flow to a preselected threshold rate of change; and if the change in the rate of exhaust flow has a preselected relationship to the preselected threshold rate of change, then to determine a degradation of the sensor.

A method of making an optical fiber preform includes depositing silica glass soot on the inside of a substrate tube via a chemical vapor deposition operation. The silica glass soot is consolidated into silica glass under controlled conditions such that the consolidated silica glass on the interior of the substrate tube contains a non-periodic array of gaseous voids in a cladding region of the optical fiber preform. The optical fiber preform may be used to produce an optical fiber having a core and a cladding containing voids formed from the gaseous voids of the cladding region of the optical fiber preform. The core of the optical fiber has a first index of refraction and the cladding has a second index of refraction less than that of the core.

Solid expandable compositions useful for the manufacture of cavity filler inserts and the like are obtained by combining at least one anhydride-functionalized thermoplastic, at least one amine-functionalized latent curing agent, and at least one latent blowing agent. Such compositions may be formulated so as to provide a highly expanded foam upon heating to activate the blowing agent wherein the foam is resistant to sagging and tolerant of over baking conditions.

Pharmacologically and biologically active compositions containing carotenoids, in combination with micro and macro nutrients, a process for their preparation from carrots and their use in formulations for health care and nutrition applications. The process includes sequentially treating carrot juice with a carboxylic acid and a saccharide to obtain a carotenoid fraction rich in micro and macro nutrients in proportions compatible with those originally found in the natural state. A method of treating retenoid deficient states and immunomodulation is also disclosed using the composition.

A stentless support structure capable of being at least partly assembled in situ. The support structure comprises a braided tube that is very flexible and, when elongated, becomes very long and very small in diameter, thereby being capable of placement within a small diameter catheter. The support structure is preferably constructed of one or more thin strands of a super-elastic or shape memory material such as Nitinol. When released from the catheter, the support structure folds itself into a longitudinally compact configuration. The support structure thus gains significant strength as the number of folds increase. This radial strength obviates the need for a support stent. The support structure may include attachment points for a prosthetic valve.

Method and apparatus for the single particle detection of submicron structures such as biological molecules and viruses utilises an optical element (100) comprising an optically transparent substrate (1) partially coated with a thin film of me (2) illuminated with an optical beam (4) incident on a non-metal coated region (3) of the surface of the optical element at a point adjacent or close to the metal coated region of the optical element such that the beam propagates above but close and substantially parallel to the metal surface defining a measurement zone from within which submicron particles (7) contained in a sample (6) placed in contact with the optical element scatter or emit light which can be detected in the far field by conventional photodetection systems. The apparatus can be configured in a flow cell or optical microscope configuration.

An apparatus for trapping residual product of semiconductor manufacturing processes increases trapping effect and trapping capacity of residual product of reaction by maximizing an effective area for the residual product of reaction to be trapped while actively preventing the residual product of reaction generated in a process chamber during a thin film deposition and etching process from sucking into a vacuum pump, thereby easily removing the trapped residual product of reaction, including hollow housing having an inner containing space, first connection pipe connecting process chamber and housing, second connection pipe connecting vacuum pump and housing, and a protrusion extending inwardly and protruding from a housing base, cooling element disposed inside the housing for cooling the residual product of reaction flowing into the housing through the first connection pipe, and trap plates disposed inside the housing as multiple layers on which the residual product of reaction is laminated.

A process for producing CMC articles, such as turbine components. The process entails applying a release sheet to a drum and then forming on the drum an impregnated tape that overlies the release sheet. The tape comprises a slurry mixture containing a ceramic precursor material and a unidirectionally-oriented filamentary material that may be wound onto the drum dry or already impregnated with the mixture. A second release sheet may be applied to overlie the tape. Alternatively, the filamentary material may be impregnated with the slurry mixture after it has been wound and removed from the drum. The resulting laminate structure may then be passed through an apparatus that flattens the tape and redistributes the slurry mixture within the tape.