46results about How to "Surface area" patented technology

A tube for implantation into the eye for replacement conduction of aqueous humor from the chambers of the eyeball to the subconjunctival tissue and ultimately to the venous system is comprised of an elongated fluid conducting conduit having distal and proximate ends, a sidewall and an interior passageway and at least one longitudinally extending opening in the sidewall that exposes the interior passageway and at least one nidi-forming structure carried by the conduit and extending laterally therefrom to implement the formation of at least one aqueous filtration bleb in the tissue of the eyeball. In one embodiment, the tube also contains at least one releasable ligature circumscribing the conduit. In another embodiment, the tube also contains an anchor appended to the conduit to prevent it from migrating from its placement site.

The invention relates to a kind of method for manufacturing propylene by catalytic cracking alkene of no less than tetra carbon, which mainly solves the short catalyst regeneration period problem and the stability problems uninvolved in previous technique. The invention uses minor crystalline grain and molecular sieve with high silicon-aluminium ratio as the catalyst for catalytic cracking with alkene that no less than tetra carbon to manufacture propylene. According to the technique scheme that described above, the invention can solve the problems mentioned above excellently, and can be used in industrial production of manufacturing propylene by catalytic cracking with alkene.

A method and an apparatus for preparing and culturing cells, particularly bone marrow stromal cells. The method includes the steps of placing an oxygenator and a scaffold in a container, such as a syringe, withdrawing bone marrow stromal cells with the syringe, evenly distributing the cells on the scaffold, connecting the syringe with a reservoir with a medium to enrich the syringe with the medium, and promoting the medium level movement in the syringe to culture bone marrow stromal cells.

A foamed skeleton reinforced composite, comprising a foamed skeleton and a matrix material. The foamed skeleton is selected from at least one of a metal foamed skeleton, an inorganic non-metal foamed skeleton, and an organic foamed skeleton. The matrix material is selected from a metal or a polymer.

A spherical ball and a method of making the spherical ball wherein the ball has a plurality of elongated dimples substantially covering the outer surface of the ball without any dimple overlap. The elongated dimples are of at least two types including a first plurality of dimples having a minor axis and a major axis which together form the long axis of the first plurality of dimples. The minor axis being less than the major axis. A second plurality of dimples has a minor axis equal to that of the first plurality of dimples and a major axis less than the major axis of the first plurality of dimples but greater than the minor axis.

An impact hammer mountable to the drum of a rotary crusher employs an attachment bolt having a tapered head which is wedged into a tapered socket in the impact hammer body. A “supernut” is used to secure the bolt to the rotary drum. The supernut is tightened against the rotary shear head until it is snug. Then, threaded locking posts, which pass through the periphery of the supernut, are tightened repeatedly, thereby applying a great deal of tension the bolt shank and effectively stretching it. Any shocks applied to the impact hammer will drive the tapered head of the bolt deeper into the socket of the hammer body block, resulting in the maintenance of a secure hammer-to-drum union. The hammer body also has tungsten carbide chips embedded in a hardfacing material that is applied to the wear surfaces of the hammer.

An instrument for controlling bleeding includes an outer shaft having a central lumen extending between proximal and distal ends thereof, and an inner shaft disposed within the central lumen of the outer shaft, the inner shaft having a central lumen extending between proximal and distal ends thereof. The instrument has an inflatable balloon with a proximal end secured to the outer shaft and a distal end that is inverted and secured to the inner shaft. In one embodiment, the balloon has a spherical shape when the outer and inner shafts are in a first position and a toroidal shape when the outer and inner shafts are in a second position. The instrument includes an actuator for discharging a flowable material from the central lumen. In one embodiment, the instrument includes a stylet having barb-like features to attach a hemostat to the distal end of the instrument.

A bolometric detector for electromagnetic radiation comprising a sensitive part or membrane comprising one or more layers of a sensitive material, the resistivity of which varies with temperature; first electric conductor elements in electrical continuity with a readout circuit associated with the bolometric detector and acting as electrodes for the detector and being in contact with the sensitive material and acting as an electromagnetic radiation absorber; second electric conductor elements at a floating potential acting only as an electromagnetic radiation absorber; at least one support area for the sensitive part fulfilling the function of positioning the sensitive part and electric conductor in relation to the readout circuit; at least one thermal isolation structure electrically and mechanically linking each support area to the sensitive part. The conductor elements are distributed as two crossed, superimposed networks of conductive tracks, the first of the two networks comprising all the first conductor elements.

Power LEDs are implanted in a specially designed printed circuit board (PCB) that is known in the art as a Metal Core Printed Circuit Board (MCPCB). The MCPCB is bended over to so as to have rounded corners having a radius that is not smaller than a determined value depending of the overall thickness of the MCPCB and other factors without any negative effects on the insulating layer and copper traces in the area of bending. In this manner, the surface area of the heat sink used in an LED nail care curing appliance is increased. The MCPCB with installed LEDs with rounded corners thereby follows the natural curvature (based on the shape of a human hand) of the appliance housing, eliminating the need for additional heat sinks or fans to reduce the heat generated by the LEDs.

In an electric power tool which houses a motor and a controller for controlling drive of the motor, the controller has a circuit board on which electric components are mounted and a heat radiation member which radiates heat of the electric components. The heat radiation member has a facing part which faces the circuit board in parallel to a board surface of the circuit board. The facing part is provided with steps by which a distance between the facing part and the board surface of the circuit board varies. Furthermore, the facing part of the heat radiation member is provided with a first facing part in which a relative distance with respect to the board surface of the circuit board is reduced.

The functional structural element includes: a substrate member which has a surface made of directionally solidified silicon; and a functional structural body which is made of a functional material and is formed on the surface of the substrate member.

The invention relates to a kind of method for manufacturing propylene by catalytic cracking alkene of no less than tetra carbon, which mainly solves the short catalyst regeneration period problem and the stability problems uninvolved in previous technique. The invention uses minor crystalline grain and molecular sieve with high silicon-aluminium ratio as the catalyst for catalytic cracking with alkene that no less than tetra carbon to manufacture propylene. According to the technique scheme that described above, the invention can solve the problems mentioned above excellently, and can be used in industrial production of manufacturing propylene by catalytic cracking with alkene.

Hammers, including hammer blades, for hammer mills are shown which have an insert bushing press fit into a hole in each hammer blade so that the hammer blades rotate with the bushing around rods being rotated in a circle around a central rotary axis of the rotor of a hammer mill.

An impact hammer mountable to the drum of a rotary crusher employs an attachment bolt having a tapered head which is wedged into a tapered socket in the impact hammer body. A “supernut” is used to secure the bolt to the rotary drum. The supernut is tightened against the rotary shear head until it is snug. Then, threaded locking posts, which pass through the periphery of the supernut, are tightened repeatedly, thereby applying a great deal of tension the bolt shank and effectively stretching it. Any shocks applied to the impact hammer will drive the tapered head of the bolt deeper into the socket of the hammer body block, resulting in the maintenance of a secure hammer-to-drum union. The hammer body also has tungsten carbide chips embedded in a hardfacing material that is applied to the wear surfaces of the hammer.

A solid-state imaging device is provided. The solid-state imaging device includes a pixel section, a peripheral circuit section, a silicide blocking layer formed in the pixel section except for part or whole of an area above an isolation portion in the pixel section, and a metal-silicided transistor formed in the peripheral circuit section.

Power LEDs are implanted in a specially designed printed circuit board (PCB) that is known in the art as a Metal Core Printed Circuit Board (MCPCB). The MCPCB is bended over to so as to have rounded corners having a radius that is not smaller than a determined value depending of the overall thickness of the MCPCB and other factors without any negative effects on the insulating layer and copper traces in the area of bending. In this manner, the surface area of the heat sink used in an LED nail care curing appliance is increased. The MCPCB with installed LEDs with rounded corners thereby follows the natural curvature (based on the shape of a human hand) of the appliance housing, eliminating the need for additional heat sinks or fans to reduce the heat generated by the LEDs.

In a bidirectional heat sink for a package element and a method for assembling the same, the bidirectional heat sink includes a first heat-dissipating plate, a second heat-dissipating plate, and a plurality of heat-dissipating pieces. The first heat-dissipating plate is provided with a groove. Both sides of the groove are formed with two separation walls. The package element is inserted into the groove to contact the two separation walls. The second heat-dissipating plate extends from one end of the first heat-dissipating plate. Each of the heat-dissipating pieces extends from the second heat-dissipating plate in a direction away from the first heat-dissipating plat). By this structure, the contact area of the package element is increased to improve the heat-dissipating efficiency. Further, the assembling process is performed quickly to form a firm structure.

A charge pump for transmitting energy and data has a primary side, a secondary side and a first coupling capacitance by way of which the primary side is connected to the secondary side, wherein the primary side is designed to periodically transmit energy in the form of a charge packet to the secondary side with the first coupling capacitance during a charge pump interval, the primary side being designed to impress an item of data on the charge pump interval by modulation, wherein the secondary side is designed to receive the item of data by demodulating the charge pump interval, wherein the secondary side is designed to impress an item of data on the charge pump interval by modulation, and wherein the primary side is designed to receive the item of data by demodulation of the charge pump interval.

The present invention relates to a method for preparing a multi-metals / activated carbon composite, more particularly to a method for preparing a multi-metals / activated carbon composite, which is prepared by electrochemical electroplating of an alloy plate comprising at least two metals and activated carbons fixed on a conductive support under a predetermined condition. The multi-metals / activated carbon composite prepared in accordance with the present invention has improved adhesion force and specific surface area than those of a conventional composite obtained by continuously plating activated carbons, in which metal salts are impregnated, or metals and good reactivity due to the introduction of pure metals. Since the composition and content of metals can be controlled accurately, the multi-metals / activated carbon composite is useful as an active material for filters for removing gaseous or liquid pollutants, secondary cells, fuel cells, capacitors, hydrogen storage electrodes, etc.

To improve catalytic efficiency by securing sufficient three phase interfaces in carbon nanohorns, where a reactant gas, a catalyst and an electrolyte meet. The resulting support with a catalyst allows an electrode reaction to proceed efficiently and improves the power generation efficiency of a fuel cell. Also, an electrode having excellent properties and a solid polymer fuel cell including the electrode, capable of giving high battery output are provided. An electrode catalyst for a fuel cell including a carbon nanohorn aggregate as a support, a catalytic metal supported on the carbon nanohorn aggregate support and a polyelectrolyte applied to the carbon nanohorn aggregate support, characterized in that the catalytic metal is not supported in deep regions between carbon nanohorns. Preferably, the catalytic metal has an average particle size of 3.2 to 4.6 nm.

A plate-shaped shearing knife is provided made of hard metal for shearing off allotments of liquid glass. The hard metal of the shearing knife has a thermal conductivity of at least 85 W / mK. Next to a V-shaped or circular-shaped cutting region -2-, there are edge regions on both sides that do not flare out wedge-like, and have an average width b which is in a range of 5% to 30% of the total width of the shearing knife B in this section.

Embodiments of the invention are directed to an exhaust system for a combustion engine with a bent pipe section conducting an exhaust gas flow. The exhaust system further includes an injector for introducing a liquid reduction agent into the exhaust gas flow, which is connected to the pipe section via a connecting pipe so that the injector can introduce the reduction agent through the connecting pipe into an introduction region of the pipe section into the exhaust gas flow. The risk of a crystallization of the reduction agent can be reduced with a return flow plate, which in the pipe section is arranged upstream of the introduction region.

A bolometric detector for electromagnetic radiation comprising a sensitive part or membrane comprising one or more layers of a sensitive material, the resistivity of which varies with temperature; first electric conductor elements in electrical continuity with a readout circuit associated with the bolometric detector and acting as electrodes for the detector and being in contact with the sensitive material and acting as an electromagnetic radiation absorber; second electric conductor elements at a floating potential acting only as an electromagnetic radiation absorber; at least one support area for the sensitive part fulfilling the function of positioning the sensitive part and electric conductor in relation to the readout circuit; at least one thermal isolation structure electrically and mechanically linking each support area to the sensitive part. The conductor elements are distributed as two crossed, superimposed networks of conductive tracks, the first of the two networks comprising all the first conductor elements.

Disclosed herein are fiber reinforced cement composite materials incorporating a 3-mode fiber blend that includes cellulose pulp and synthetic fibers in a ratio selected to provide the composite material with improved water absorption characteristics and the same or improved mechanical properties as compared to equivalent composite materials reinforced with predominantly or all cellulose fibers. Also disclosed herein are fiber blends comprised of a combination of cellulose fibers and polypropylene fibers adapted to reinforce cementitious composite articles manufactured by the Hatschek process and autoclave cured.

A pool brush includes a handle receiver; and a brush head attached to the handle receiver, the brush head having a body and a plurality of bristles extending from said body. The body includes a cylindrical portion having rounded top, bottom, front and rear sides, and opposite end portions, and the plurality of bristles includes bristles radially extending 360 degrees around the cylindrical portion of the body and from the end portions. The plurality of bristles includes a plurality of bundles of relatively longer bristles and a plurality of bundles of relatively shorter bristles, wherein the bundles of relatively longer bristles are in arrays in an alternating arrangement with arrays of the bundles of shorter bristles.

A pool brush includes a handle receiver; and a brush head attached to the handle receiver, the brush head having a body and a plurality of bristles extending from said body. The body includes a cylindrical portion having rounded top, bottom, front and rear sides, and opposite end portions, and the plurality of bristles includes bristles radially extending 360 degrees around the cylindrical portion of the body and from the end portions. The plurality of bristles includes a plurality of bundles of relatively longer bristles and a plurality of bundles of relatively shorter bristles, wherein the bundles of relatively longer bristles are in arrays in an alternating arrangement with arrays of the bundles of shorter bristles.

Some or all, of the surface area of the back neck of a guitar is reduced to for a continuous geometric pattern, with spaced depressions or raised ridges, leaving less surface area for the palm of the hand and / or thumb to contact, thereby reducing or eliminating tackiness so that the grip on the neck can be better controlled.

A solid-state imaging device is provided. The solid-state imaging device includes a pixel section, a peripheral circuit section, a silicide blocking layer formed in the pixel section except for part or whole of an area above an isolation portion in the pixel section, and a metal-silicided transistor formed in the peripheral circuit section.