473results about How to "High material" patented technology

A composite magnetic core formed of a high permeability material and a lower permeability, high saturation flux density material prevents core saturation without an air gap and reduces eddy current losses and loss of inductance. The composite core is configured such that the low permeability, high saturation material is located where the flux accumulates from the high permeability sections. The presence of magnetic material having a relatively high permeability keeps the flux confined within the core thereby preventing fringing flux from spilling out into the winding arrangement. This composite core configuration balances the requirements of preventing core saturation and minimizing eddy current losses without increasing either the height or width of the core or the number of windings.

Susceptor assemblies, reactors and systems including the assemblies, and methods of using the assemblies, reactors, and systems are disclosed. Exemplary susceptor assemblies include two or more sections that can be moved relative to each other to allow rapid changes in a substrate temperature. The movement of the two or more sections can additionally or alternatively be used to manipulate conductance of gas flow though a reactor.

A system and method for communicating with a medical implant is disclosed. The system (10,210,310,410) includes on-board electronics, a signal generator (15,215), an amplifier (16,216), a coil (14,214), a receiver (22,222), and a processor (20,220). The on-board electronics (100, 110) include a power harvester, a sensor, a microprocessor, and a data transmitter. The signal generator (15,215) generates a first signal, the amplifier (16,216) amplifies the first signal, the coil (14,214) transmits the amplified signal, the power harvester receives the first signal and transmits a data packet (18,218) containing data, the receiver (22,222) receives the data packet (18,218), and the processor (20,220) either processes the data or sends the data to a data storage device.

A control system for electrosurgical apparatus in which the energy delivery profile of both RF EM radiation and microwave EM radiation delivered to a probe is set based on sampled voltage and current information of RF energy conveyed to the probe and / or sampled forward and reflected power information for the microwave energy conveyed to and from the probe. The energy delivery profile for the RF EM radiation is for tissue cutting (without requiring a sharp blade) and the energy delivery profile for the microwave EM radiation is for haemostasis or sealing or coagulation or ablation of tissue. The RF EM radiation and microwave EM radiation may be applied separately or simultaneously.

An inductive energy harvester comprises a permanent magnet magnetic field source attached by a pair of compact spiral disk springs to an induction coil. The springs position the magnet so that the induction coil surrounds one end of the magnet where the flux density is greatest. In addition, the magnetic flux emerging from that end of the magnet is enhanced by a disk of magnetic material having high permeability and high flux density. In another embodiment, the magnetic field source comprises two dipole magnets arranged in opposing flux relationship with a thin layer of high flux density, high magnetic permeability material located in a gap between the magnets.

A golf club head includes a golf club head body and a complex plate. The golf club head body includes an assembling opening to mount the complex plate. The complex plate includes a base plate and a protrusion structure which are made of different metal material. The upraised protrusion structure has a buffer structure formed therein. The complex plate has an outer (front) surface and an inner (rear) surface opposite to the outer surface. The protrusion structure is disposed on the inner surface of the complex plate. In assembling operation, the complex plate is received in the assembling opening of the golf club head body so as to constitute the golf club head.

ESR microscope systems and methods for examining specimens using both continuous wave and pulsed modes in the 9 to 60 GHz range. The ESR microscope uses an image probe comprising gradient coils in addition to conventional modulation coils (in continuous wave mode) or magnetic field bias coils (in pulse mode), and a resonator constructed from high permittivity material. The systems and methods also involves the use of sample containers that permit the precise placement of samples in relation to the image probe. The microscope uses a microstrip or thin coaxial or dielectric antenna to obtain a high coupling coefficient to the specimen being imaged. The microscope systems provide resolution at the single micron level, and permit the observation of images comprising tens to hundreds of pixels for each of two or three dimensions in a few minutes. Novel stable radicals used as the imaging media are also described.

Presently, many variations of light treatment are used in health care. Prime examples are the in-vivo or ex-vivo photodynamic treatment (PDT) of skin diseases, cancer / tumors, psoriasis, mood disorders, bladder infections, promoting wound closure, recovering spinal cord injuries, and countering muscle / bone atrophy. PDT is a treatment that uses a drug, called a photo-sensitizer or photosensitizing agent, and a particular type of light. The invention relates to an improved PDT device.

A novel semiconductor transistor is presented. The semiconductor structure has a MOSFET like structure, with the difference that the device channel is formed in an intrinsic region, so as to effectively decrease the impurity and surface scattering phenomena deriving from a high doping profile typical of conventional MOS devices. Due to the presence of the un-doped channel region, the proposed structure greatly reduces Random Doping Fluctuation (RDF) phenomena decreasing the threshold voltage variation between different devices. In order to control the threshold voltage of the device, a heavily doped poly-silicon or metallic gate is used. However, differently from standard CMOS devices, a high work-function metallic material, or a heavily p-doped poly-silicon layer, is used for a n-channel device and a low work-function metallic material, or heavily n-doped poly-silicon layer, is used for a p-channel FET.

A semiconductor structure and a method of forming the same. In one embodiment, a method of forming a silicon-on-insulator (SOI) wafer substrate includes: providing a handle substrate; forming a high resistivity material layer over the handle substrate, the high resistivity material layer including one of an amorphous silicon carbide (SiC), a polycrystalline SiC, an amorphous diamond, or a polycrystalline diamond; forming an insulator layer over the high resistivity material layer; and bonding a donor wafer to a top surface of the insulator layer to form the SOI wafer substrate.

Ultra fine and nanometer powders and a method of producing same are provided, preferably refractory metal and ceramic nanopowders. When certain precursors are injected into the plasma flame in a reactor chamber, the materials are heated, melted and vaporized and the chemical reaction is induced in the vapor phase. The vapor phase is quenched rapidly to solid phase to yield the ultra pure, ultra fine and nano product. With this technique, powders have been made 20 nanometers in size in a system capable of a bulk production rate of more than 10 lbs / hr. The process is particularly applicable to tungsten, molybdenum, rhenium, tungsten carbide, molybdenum carbide and other related materials.

An ultrasonic monitoring apparatus is provided for use by an operator in detecting ultrasonic vibrations and sound waves. The ultrasonic monitoring apparatus consists of a hand held device with a sensor socket that allows a variety of different types of sensors to be interchangeably installed in the hand held device. These sensors include both contact and airborne ultrasonic sensors as well as a combination temperature and ultrasonic sensor that allows the operator to simultaneously monitor the surface temperature of an object and the ultrasonic vibrations produced by the object. Identification information corresponding to the type of sensor is encoded on the individual sensors. The identification information is read by an identification circuit located in the hand held device. This identification information allows the hand held device to configure itself to operate with the type of sensor installed in the socket.

An inexpensive, highly catalytic material preferably formed by a leaching process. The catalyst comprises a finely divided metal particulate and a support. The active material may be a nickel and / or nickel nickel alloy particulate having a particle size less than about 100 Angstroms. The support may be one or more metal oxides.

An improved method and apparatus for anchoring bone screws into bones of living beings includes a cannulated screw or bone anchor that is provided with at least one discharge opening in the distal end thereof. The head of the screw is configured to receive therein a material delivery probe in sealing relationship therewith. A fluid insertion device is connected to the material delivery probe and pumps a highly viscous material through the material delivery probe and into the interior of a bone in which the distal end of the screw has been inserted. The screw can be anchored proximally in bone to prevent backpressure from dislodging the delivery cannula and aides in achieving the high pressures necessary to cause the positive effects of materials previously not injectable in the bone or surrounding areas with the current methods and apparatia.

The present invention teaches a method for enabling the formation of a high damping, soft polymer gel. The method includes: reacting a poly(alkyl vinylether-co-maleimide) polymer with a maleated polyalkylene and an alkyl diamine under substantially dry conditions sufficient to form a polyalkylene grafted poly(alkyl vinylether-co-maleimide) polymer product; and, dispersing the polyalkylene grafted poly(alkyl vinylether-co-maleimide) polymer product with an extender oil sufficient to form the gel. The present invention also contemplates a polymer gel composition, a polymer composition and an article manufactured from the polymer gel composition.

The present invention involves the prescribing and / or dispensing ophthalmic lenses, such as progressive addition lenses, for a wearer. In one form of the invention lens usage information is obtained from a wearer and entered into a programmed computer. The programmed computer processes the lens usage information to provide a separate weighted lifestyle score for each of one or more respective lifestyle score categories, such that each weighted lifestyle score is a function of a predetermined relationship between the respective lifestyle score category and at least ophthalmic lens design feature. The programmed computer then selects or designs an ophthalmic lens design using one or more of the weighted lifestyle scores such that the selected or designed ophthalmic lens has at least one lens design feature which has been customised using one or more of the weighted lifestyle scores.

A preloaded cathode layer, comprising: (A) An integral porous structure having massive surfaces greater than 100 m2 / g or pores with a size from 1.0 nm to 100 nm, wherein multiple conductive particles, platelets or filaments, without a conductive filler, form a 3-D conductive network; and (B) a metal polysulfide preloaded in the pores or deposited on the massive surfaces, selected from: (a) an MxSy, (x=1-3 and y=1-10) wherein M is a metal element selected from a non-lithium alkali metal, an alkaline metal selected from Mg or Ca, a transition metal, a metal from groups 13 to 17, or a combination thereof, or (b) Li2S6, Li2S7, Li2S8, Li2S9, or Li2S10, wherein the metal polysulfide contains a thin coating or small particles with a thickness or diameter less than 20 nm and occupies a weight fraction of from 1% to 99%.

A wet stick pressure sensitive adhesive comprising the solventless polymerization product of: a) about 30 to about 70 parts by weight of an (meth)acrylate ester monomer wherein the (meth)acrylate ester monomer, when homopolymerized, has a Tg of less than about 10° C.; b) about 70 to about 30 parts by weight of a hydrophilic acidic comonomer; and c) about 10 to 100 parts based on 100 parts of the sum of components (a+b) of a non-reactive plasticizing agent, wherein the pressure sensitive adhesive adheres to wet substrate surfaces and a method of making.

An LED lamp includes a plurality of LED light units, a connecting member engaged with first ends of the LED light units, a mounting member engaged with second ends of the LED light units, and two strengthening members. The LED light units are juxtaposed together and placed side by side. Each LED light unit comprises a heat sink and a plurality of LED modules engaged with a bottom of the heat sink. The strengthening members extend through two outmost side portions of the LED light units and connecting the connecting member and the mounting member to support the LED light units.

An ultrasonic transducer for use in a fluid medium includes at least one transducer core having at least one acoustic / electric transducer element. The ultrasonic transducer furthermore includes at least one decoupling element which is configured to reduce a structure-borne noise coupling between the transducer core and a housing. The decoupling element includes at least one porous plastic material, in particular a foamed plastic material. The porous plastic material includes at least one thermosetting polymer and / or at least one thermoplastic.

An LED lamp includes a plurality of LED light units juxtaposed together and a connecting member engaging with the LED light units. Each LED light unit includes a heat sink and an LED module engaged on the heat sink. The heat sink defines a groove group at each lateral portion thereof. The connecting member includes a plurality of inserts received in grooves of the groove groups of the heat sinks of neighboring LED light units and clasping the neighboring LED light units together thereby to secure the LED light units into the LED lamp.

A photocathode is formed on a monocrystalline silicon substrate having opposing illuminated (top) and output (bottom) surfaces. To prevent oxidation of the silicon, a thin (e.g., 1-5 nm) boron layer is disposed directly on the output surface using a process that minimizes oxidation and defects, and a low work-function material layer is then formed over the boron layer to enhance the emission of photoelectrons. The low work-function material includes an alkali metal (e.g., cesium) or an alkali metal oxide. An optional second boron layer is formed on the illuminated (top) surface, and an optional anti-reflective material layer is formed on the boron layer to enhance entry of photons into the silicon substrate. An optional external potential is generated between the opposing illuminated (top) and output (bottom) surfaces. The photocathode forms part of novel sensors and inspection systems.

An injection system for injection of a relatively high viscous material into hard tissue surrounded by soft tissue in an animal body. The injection system comprising an elongated tubular member having a proximal section defining a syringe chamber and a distal section defining a cannula. The cannula having an inside diameter and an outside diameter and a length sufficient for insertion into the hard tissue. The proximal section defining the syringe chamber having an inside diameter greater than the inside diameter of the cannula, the proximal section adapted to be inserted in the soft tissue. The cannula having a bore communicating with the syringe chamber. The injection system comprising a syringe fitted for insertion within the syringe chamber of the proximal section. The syringe having an open end for communicating with the bore of the cannula. The syringe adapted for containing the high viscous material to be injected through the open end and the bore into the hard tissue respectively whereby the injection of the high viscous material is facilitated.

An improved dispersant material for mitigating crude oil fouling comprises a reaction product of a polyamine and a polyisobutylene succinyl anhydride made with a polyisobutylene having a vinylidene double bond content of at least 50%. The reaction product has an active nitrogen atom content of at least about 2% by weight. The reaction product is prepared by thermally reacting the polyisobutylene with maleic anhydride to produce said polyisobutylene succinyl anhydride and thereafter reacting the polyisobutylene succinyl anhydride with a polyamine having 5 to 7 active nitrogen atoms.

A method for producing a nanostructured, in particular a ceramic-like functional coating on a substrate is described. To that end, using at least one plasma source, a pulsed plasma is produced with which a matrix phase and at least one nano-scale interstitial phase embedded in it are deposited on the substrate via a material input. Preferably a plurality of pulsed plasma sources that are time-correlated or synchronized with each other are used. Also proposed is a nanostructured functional coating, in particular one producible by this method, which is free of chlorine and / or sulfur, and which contains at least one metal and / or at least one element selected from the group oxygen, hydrogen, nitrogen, carbon, helium, argon or neon.

A wireless magnetic through-hull communications apparatus and method which permit higher data-rate communications through materials than presently available using acoustic techniques is described. A signal source on one side of a barrier is directed into a coil driver which generates an amplified, modulated signal responsive thereto. The resulting signal is used to drive a transmitter coil which generates a time-varying magnetic field that penetrates the barrier as well as any gaps comprising water, air or other material between the barrier and the transmitter coil. On the other side of the barrier, and perhaps through additional gaps comprising water, air or other material, a receiver coil detects the time-varying magnetic field. This signal may be amplified and then digitized by a signal processor. The signal processor may then communicate with a data processing and / or display unit, another sensor or some other device. Electric power may also be transmitted through the barrier for providing power to instrumentation without the need for batteries.

A system for injecting an incompressible low viscosity fluid into a bone cement reservoir adapted to be engaged with a cannula through which a high viscosity bone cement is transferred from the bone cement reservoir to a bone element is provided. The system comprises a control handle having a cylindrical body, a grip portion at an outer end of the cylindrical body and a central thumb-actuated plunger of a power piston, the grip portion being configured for receiving at least two fingers a user such as to permit actuation of the control handle by the single hand of the user, the cylindrical body including the power piston and a low viscosity fluid reservoir concentrically disposed relative to each other, the low viscosity fluid reservoir containing the incompressible low viscosity fluid and the power piston extending longitudinally through a center of the low viscosity fluid reservoir.

A tool for friction stir spot welding of high melting temperature materials, wherein the tool geometry includes a short pin and broad shoulder to enhance mixing of high temperature materials, and wherein the tool includes a superabrasive coating to thereby enable FSSW of high melting temperature materials.