181 results about "Isolation techniques" patented technology

Cells derived from human umbilical cords are disclosed along with methods for their therapeutic use. Isolation techniques, culture methods and detailed characterization of the cells with respect to their cell surface markers, gene expression, and their secretion of trophic factors are described.

Cells derived from human umbilical cords are disclosed along with methods for their therapeutic use. Isolation techniques, culture methods and detailed characterization of the cells with respect to their cell surface markers, gene expression, and their secretion of trophic factors are described.

Fully monolithic gimbal-less micro-electro-mechanical-system (MEMS) devices with large static optical beam deflection and fabrications methods are disclosed. The devices can achieve high speed of operation for both axes. Actuators are connected to a device, or device mount by linkages that allow static two-axis rotation in addition to pistoning without the need for gimbals, or specialized isolation technologies. The device may be actuated by vertical comb-drive actuators, which are coupled by bi-axial flexures to a central micromirror or device mount. Devices may be fabricated by etching an upper layer both from the top side and from the bottom side to form beams at different levels, The beams include a plurality of lower beams, a plurality of full-thickness beams, and a plurality of upper beams, the lower, full-thickness and upper beams That form vertical combdrive actuators, suspension beams, flexures, and a device mount.

Systems and methods which implement cooperative techniques at wireless network access points to provide interference mitigation are shown. Embodiments utilize cooperative antenna beam adaptation techniques wherein antenna beam selection, selective antenna beam transmission power, and/or antenna beam null selection is implemented based upon the communication environment created by a plurality of access points. Additionally or alternatively, embodiments utilize cooperative antenna beam isolation techniques wherein narrow channel filters are implemented with respect to antenna beam signals and/or shielding is provided between various antenna beams based upon the communication environment created by a plurality of access points. Embodiments additionally or alternatively utilize cooperative antenna beam coordination techniques wherein transmission and/or reception of signals is coordinated, the use of antenna beams is coordinated, and/or interference cancellation is implemented based upon the communication environment created by a plurality of access points.

A system and method decreases the transmission of structure-borne noise by cooling fans to electronic components and structurally integrated enclosures for the electronic components. The system has a machined isolation plate that fits onto a rear plate on the structurally integrated enclosure. The cooling fans are fitted onto the opposite side of the isolation plate. Fitted between the isolation plate and the rear plate, and/or the isolation plate and the cooling fans are soft elastomeric isolators. These isolators dampen and prevent the transmission of structure-borne noise from the cooling fans to the electronic components and the structurally integrated enclosure. This dampening is advantageous on platforms in which stealth is desired, such as on submarines.

The invention relate to a method of extracting scandium from red mud, the method utilize the red mud that come from the process of producing aluminum oxide from alumyte, in accordance with specific characteristics of red mud, applying hydrochloric acid leach, P204 abstraction, acid-washing edulcoration, sodium-hydroxide back extraction, ammonia modifier hydrolytic decomposition zirconium and titanate in hydrochloric acid solution, oxalic acid precipitating scandium and medium temperature calcining technique, the purity of final production Sc2O3 is 99.9%. Extracting scandium from red mud change refuse into available material, save mineral resources, benefiting environmental conservation. The invention also fills up the study vacant of isolation technique in high-strength zirconium titanate and scandium.

An electronic pressure-sensing device is isolated from corrosive, conductive gasses and fluids by a corrosion resistant metal diaphragm welded to a pressure port. The pressure-sensing device is attached to a support structure with a hole that provides a path from the diaphragm area to the pressure-sensing device. A fill fluid is sealed behind the diaphragm and fills the hole through the support structure to the electronic pressure-sensing device. In this design, any hostile chemical applied is completely isolated from the electronic sensor and associated adhesive seals by the metal diaphragm.

Silicon-on-insulator (SOI) structures with silicon layers less than 20 nm in thickness are used to form extremely thin silicon-on-insulator (ETSOI) semiconductor devices. ETSOI semiconductor devices can be efficiently manufactured by mesa isolation techniques. A method of forming a plurality of semiconductor devices is provided comprising a SOI structure. The SOI structure comprises a substrate, an insulating layer overlying the substrate, and a silicon layer overlying the insulating layer, wherein the silicon layer has a thickness less than 20 nm. The silicon layer is patterned to create at least two laterally spaced apart silicon layers. A semiconductor device is formed at each of the at least two laterally spaced apart silicon layers.

Techniques are provided for improved fault isolation and fault reduction. A system for use with a data network includes multiple diagnostic units each adapted to communicate with the network including to a network user. A central controller is operatively connected to the diagnostic units, the controller being adapted to communicate with and coordinate operations of the diagnostic units, to instruct the diagnostic units to perform tests adapted to help isolate a network fault, and to analyze test results received from a diagnostic unit to attempt to determine the network fault. Various methods for improving fault isolation and fault reduction are also provided.

The invention relates to reflecting type whole solid state electrochromism device with paper carrier material and the manufacturing method. The device includes paper carried electrochromism layer, ion conductor layer, ion storing layer, current-carrying electrode layer, and transparent glass base layer. It uses the paper carried electrochromism as main display thin film. Its two sides are tightly pressed with the ion conductor layer of which two sides are respectively set current carrying electrode layer and the transparent glass base layer. Each layer side is hermetically packaged and connected with electrode. The device can greatly increase device contrast, overcome 'cross talk', 'pixel dispersion', leakage, image blur etc, gain the electrochromic display with low cost, and lay stable foundation for merchandizing and popularity of the electrochromism type electronic ink and paper, color electrochromic display.

A method of fabricating an integrated circuit includes forming an isolation trench in a semiconductor substrate and partially filling the trench with a dielectric material so that at least the sidewalls of the trench are coated with the dielectric material. Ions are implanted into the substrate in regions directly below the isolation trench after partially filling the trench with the dielectric material. The dielectric along the sidewalls of the trenches can serve as a mask so that substantially all of the ions implanted below the isolation trenches are displaced from the active regions. The dielectric along the sidewalls of the trenches serves as a mask so that substantially all of the ions implanted below the isolation trenches are displaced from the active regions. After the ions are implanted in the substrate below the trenches, the remainder of the trench can be filled with the same or another dielectric material. The trench isolation technique can be used to fabricate memory, logic and imager devices which can exhibit reduced current leakage and/or reduced optical cross-talk.

The invention relates to a wideband multi-channel substrate integrated waveguide power divider adopting a novel high-isolation technology. Input/output ports and a substrate integrated waveguide cavity are connected by using a novel mixed multi-through-hole probe to realize wideband impedance matching. A flow drainage groove and a resistive isolating groove are formed on the substrate integrated waveguide cavity, and an isolating resistor is arranged on the resistive isolating groove to obtain high isolation characteristic of each output port. The output ports are distributed at equal intervals on a circle by taking an input port as the center, and the whole power dividing circuit has axial rotation symmetry, so that the amplitudes of multi-channel power dividing signals are equal, N-channel parallel power division is realized, and signal transmission loss can be reduced to the largest extent. The power dividing circuit can be flexibly designed into an in-phase power divider, an inverse-phase power divider and a differential power divider. The wideband multi-channel substrate integrated waveguide power divider has the advantages of wide band, low insertion loss, high isolation, any multi-channel power dividing output, high input/output standing wave, high amplitude consistency of each channel of power dividing output signal, and the like. The wideband multi-channel substrate integrated waveguide power divider is mainly applicable to a microwave millimeter wave power synthesis amplification system, a phased-array antenna feed network and the like, and has a wide application prospect in microwave millimeter wave systems for communication, radar and measurement.

The automatic tracking control method for submerged-arc welding seam belongs to the field of automatic welding control technology. The technological scheme includes adopting welding arc as the sensor for detecting weld seam shape and position, obtaining the horizontal and vertical deviation information of the welding torch and weld seam from varying arc and voltage, and combining AC shaping, hardware and digital filtering, photocoupling and PWM technology. The deviation signal is processed in signal processing circuit, A/D converter circuit, sampling circuit, and monolithic computer circuit, control signal is output via the HSO port to control PWM generator circuit, and step motor is driven to regulate cross block for the arc to align the weld seam center and realize automatic seam tracking. The present invention has high accuracy, high anti-jamming capacity, high stability and reliability.

Isolation methods and devices for isolating regions of a semiconductor device. The isolation structure and methods include forming a biased gate over a field isolation region and adjacent a pixel of an image sensor. The isolation methods also include forming an isolation gate over substantial portions of a field isolation region to isolate pixels in an array of pixels. The isolation method and structure further include forming an isolating trench in an active area and filling the trench with a doped conductive material containing silicon. There is also provided a method and structure for isolating the regions by providing a trench in an active area of a substrate, growing an epitaxial layer in the trench to fill the trench or to partially fill the trench and depositing an insulating material over the epitaxial layer and within the trench to completely fill the trench.

A structure for isolating areas in a semiconductor device is provided. The structure includes a trench having first and second portions formed in a substrate. The first portion has a first width, and the second portion has a second width and is below the first portion. The first width is greater than the second width. A first insulating liner is formed along at least lateral sidewalls of the first portion. A spacer material is formed along at least lateral sidewalls of the insulating liner and filling the second portion. A filler material is over said spacer material and within the first portion. Methods for forming the structure are also provided.

An alpha type cyclone separator which belongs to the isolation technique comprises a straight bowl body, a conical bowl body, an ash exhausting pipe, a coping, a liquid inlet, and a liquid outlet. The utility model is of small conical angle and long conical body structure, and the angle between the axes of the liquid inlet and the horizontal direction is of alpha. The coping is a spiral lamina with an obliquity of alpha, and an air inlet and the straight bowl boy, as well as the coping are tangent according to the obliquity alpha of the coping. The alpha is from 5 DEG C to 25 DEG C, and a second class or a second and third circumfluent cyclone separator also can be connected in series. The separating efficiency of the alpha type cyclone separator is obviously superior to a traditional hydrocyclones, and the alpha type cyclone separator is of low pressure drop, small amplification effect, high separation definition, and obvious energy saving effect. The pressure drop is about 70 percent that of traditional hydrocyclones, therefore, the utility model can satisfy the separating demand of high concentration, widely distributed granularity of solid particles, highly required technical process, and great difficulty for classification. The cyclone separator can be widely popularized and applied in chemical engineering, petroleum, metallurgy, medicine, and environmental protection field.

A light emitting device (10) comprises a body (11) comprising a substrate (12) of a p-type semiconductor material. The substrate has an upper surface (14) and having formed therein on one side of the upper surface and according to a bulk semi-conductor fabrication process utilizing lateral active area isolation techniques: a first n+-type island (16) to form a first junction (24) between the first island and the substrate; and a second n+-type island (18) spaced laterally from the first island (16). The substrate provides a laterally extending link (20) between the islands having an upper surface. The upper surface of the link, an upper surface of the island (16) and an upper surface of the island (18) collectively form a planar interface (21) between the body (11) and an isolation layer (19) of the device. The device comprises a terminal arrangement to apply a reverse bias to the first junction, to cause the device to emit light. The device is configured to facilitate the transmission of the emitted light.

A circuit isolation technique that uses implanted ions in embedded portions of a wafer substrate to lower the resistance of the substrate under circuits formed on the wafer or portions of circuits formed on the wafer to prevent the flow of injected currents across the substrate. The embedded ions provide low resistance regions that allow injected currents from a circuit to flow directly to a ground potential in the same circuit rather than flowing across the substrate to other circuits. High energy implantation processes on the order of 1 MeV to 3 MeVs can be used to implant the ions in embedded regions. Multiple energy levels can be used to provide thick embedded layers either prior to or after application of an epitaxial layer. Various masking materials can be used to mask the isolation regions during the implantation process, including hard masking materials such as silicon dioxide or silicon nitride, poly-silicon or an amorphous silicon layer, and a photoresist layer. Additive materials can be used in one or more of the masking layers to increase the absorption characteristics of the high energy ions. Separate physical masks can be used to block the implantation of ions.

The invention provides a controller of a steering engine. The controller comprises a zeroing circuit, a steering engine feedback position circuit, a target signal conditioning circuit, a target angle and actual angle processing circuit, a direction control circuit, a signal selecting circuit, a PWM (Pulse-Width Modulation) signal generating circuit, a PID (Proportion Integration Differentiation) conditioning circuit, a carrier signal generating circuit, a signal isolating circuit, an over-current protecting circuit, a current sampling circuit, a power pipe driving circuit, an H bridge inverter circuit, a current sampling circuit and a power supply circuit. According to the controller of the steering engine provided by the invention, the common elements are adopted, so that the cost is reduced; with the adoption of the mature technology, the reliability can be ensured; and a PID control technology, a PWM control technology, a target signal and actual signal processing technology, an over-current protecting circuit technology, an isolating technology and the like are achieved by adopting discrete electronic elements; and as an experiment shown, the controller of the steering engine has the characteristics of being quick in response and good in tracking and meets the performance of controlling the steering engine.

Using application - interface isolation technique, the method fixes up mapping relation between nodes to be simulated and experiment node. Based on mapping relation of nodes, experiment node dispatches data packets of application program to realize simulation of self-organization network. The invention deploys mapping relation of nodes at sampling time on different wireless nodes on simulation platform to retain characteristic of distribution operation of application. Meanwhile, the method combines the technique with damping control for radio frequency signal to obtain high simulation validity for two features including wireless link of transmission characteristic, and node movement in mobile self-organization network. The invention guarantees better validity of simulation.

The invention discloses a method for extracting Olea europaea leaf polyphenol by an aqueous two phase system. The method comprises the following steps of adding dried and crushed Olea europaea leaves into the aqueous two phase system containing hydrophilic low molecules organic solvent and inorganic salt solution, mixing, performing ultrasonic extraction, and extracting the Olea europaea leaf polyphenol to an upper phase; performing enrichment on the upper phase with macroporous resin, eluting the upper phase with the organic solvent, and concentrating and drying eluant to obtain the Olea europaea leaf polyphenol; the recovery rate of the Olea europaea leaf polyphenol is more than 90 percent, and the purity of the Olea europaea leaf polyphenol is more than 80 percent. The aqueous two phase extraction technique, which is a new isolation technique, is applied to isolation and extraction of the Olea europaea leaf polyphenol by combing with the traditional ultrasonic-assisted organic solvent extraction technique, therefore the method has the advantages that the product yield is high, the product purity is high, extraction is rapid, the condition is mild, equipment is simple, the Olea europaea leaf polyphenol is easy to amplify, and the like.

This invention is preparation procedure of the yolk antibody of high biological activity, belonging to the field of bioproduct and industrialized isolation technique. In this invention, we adopt the natural macromolecule gel high -extractive technique and hyperfiltration to extract the yolk-antibody of high biological activity from yolk at an industrialized level, annual output is upto 10 ton. the yolk-antibody content is about 30%-50%, meanwhile we could obtain some by-products like albumen powder, yolk powder, egg oil, vitellin and so on. In the invention high technology like bioimmunology and membrane separation is adopted. The invention is high-tech, high-usage, highly-automated and typical of green food and environmental-friendly.

A processor isolation technique enhances debug capability in a multiprocessor circuit. A bypass register has a bit location which may indicate that a processor is to be bypassed. A code entry point is selected to permit a downstream processor to do the work of the bypassed processor. The processors may be arrayed in a pipeline.

The invention discloses a multi-data-source dynamical isolated access method. Aiming at requirements of multi-data-source dynamic access, the dynamic database connection, access and multi-transaction processing technologies are utilized, and multi-data-source dynamic isolated access is realized through three stages including multi-data-source dynamic connection, multi-data-source dynamic inquiry and multi-data-source isolated storage. High-speed access and management of multiple (unlimited number) data sources can be completed simultaneously, and by the data isolation technology, non-interfering of data transmission of the multiple data sources is guaranteed and safety and high speed are realized, so that oneness and inefficiency of operations on data sources of conventional software are overcome. The multi-data-source dynamical isolated access method can be widely applied to software development environments needing simultaneous access to different data-source data, especially SaaS (software as a service) and PaaS (platform as a service) environments in the field of cloud computation.