Abstract

There is provided a metal injection molding method for producing a molded part. A polymeric binder and a metallic powder are mixed to obtain a powder-binder mixture. The powder-binder mixture is heated to a desired temperature. The powder-binder mixture is injected in a polymer mold at a desired pressure and/or a desired flow rate. The polymer mold has a portion of its internal surface coated with a metallic layer. And finally the molded part is demolded. There is further provided a metal injection mold comprising a polymer plate having a mold surface, and a metallic layer on a portion or the totality of the mold surface.

IPC Classes  ?

• B22F 3/22 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor for producing castings from a slip
• B22F 1/10 - Metallic powder containing lubricating or binding agentsMetallic powder containing organic material

Abstract

The present disclosure provides a method and apparatus using a novel PWM switching technique that requires only one PWM carrier signal and benefits from two logic functions to provide switching signals and provides the flying capacitor (FC) voltage as well as dc-link capacitors voltages regulated to their desired values without external control. It may also, eliminate the odd multiples of the switching harmonic clusters from the output voltage is possible; double the frequency of first switching harmonic; reduce filtering efforts may be required since the values of the output LC filter inductor and capacitor can be very much reduced. Furthermore, notable reduction in control complexity is possible using the novel PWM method.

IPC Classes  ?

• H02P 1/00 - Arrangements for starting electric motors or dynamo-electric converters
• H02M 1/00 - Details of apparatus for conversion
• H02M 1/12 - Arrangements for reducing harmonics from AC input or output
• H02M 7/04 - Conversion of AC power input into DC power output without possibility of reversal by static converters
• H02M 7/217 - Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 7/483 - Converters with outputs that each can have more than two voltage levels
• H02M 7/487 - Neutral point clamped inverters
• H02M 7/5395 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
• H02P 1/28 - Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor by progressive increase of voltage applied to primary circuit of motor
• H02P 3/00 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
• H02P 27/14 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation with three or more levels of voltage

Abstract

There is provided a metal injection molding method for producing a molded part. A polymeric binder and a metallic powder are mixed to obtain a powder-binder mixture. The powder-binder mixture is heated to a desired temperature. The powder-binder mixture is injected in a polymer mold at a desired pressure and/or a desired flow rate. The polymer mold has a portion of its internal surface coated with a metallic layer. And finally the molded part is demolded. There is further provided a metal injection mold comprising a polymer plate having a mold surface, and a metallic layer on a portion or the totality of the mold surface.

IPC Classes  ?

• B22F 3/16 - Both compacting and sintering in successive or repeated steps
• B22C 3/00 - Selection of compositions for coating the surfaces of moulds, cores, or patterns
• B22C 9/00 - Moulds or coresMoulding processes
• B22D 17/00 - Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure

Abstract

There is described a method of assessing an ink deposition accuracy in an electronic device printing process. The method generally has: printing a meta material structure on a substrate using conductive ink, the metamaterial structure having a pattern of conductive elements interspersed with complementary insulating elements, the metamaterial structure having at least a terahertz resonance frequency; emitting a terahertz radiation beam incident on the metamaterial structure of the substrate, the incident terahertz radiation beam having power at least at the terahertz resonance frequency of the metamaterial structure; the metamaterial structure interacting with said incident terahertz radiation beam resulting in an outgoing terahertz radiation beam having a spectral response at least at the terahertz resonance frequency; measuring said spectral response of said outgoing terahertz radiation beam; assessing an ink deposition accuracy of said printing based on said measured spectral response; and generating a signal based on said assessed ink deposition accuracy.

IPC Classes  ?

• H05K 3/12 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using printing techniques to apply the conductive material
• H05K 13/08 - Monitoring manufacture of assemblages

Abstract

A method of manufacturing an electrically conductive composite comprising a thermoplastic polymer and electrically conductive particles embedded in at least part of the surface of the thermoplastic polymer is provided. This method comprises the steps of: a) providing a heat-shrinkable object made of bulk thermoplastic polymer, wherein at least part of the surface of the object is rough, b) depositing electrically conductive particles on said part of the surface of the object that is rough leaving spaces free of particles on said part of the surface of the object that is rough, and c) heating the object above a shrinking temperature, thereby shrinking the object, embedding the particles into said part of the surface of the object that is rough and allowing the particles to form conductive paths yielding the electrically conductive composite.

IPC Classes  ?

• H01B 13/00 - Apparatus or processes specially adapted for manufacturing conductors or cables
• H01B 1/20 - Conductive material dispersed in non-conductive organic material
• H01B 1/24 - Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon, or silicon

Abstract

Organic-inorganic halide perovskite (OIHP) materials through their promising material properties, simple solution processability, low material cost, high photon absorption, carrier mobilities, and tunable band gap are suitable for large area coatings in the fabrication of optical displays, LEDs, photovoltaic cells and photodetectors. However, OIHP stability and shelf life have been limited to date as exposed perovskite films do not survive long in ambient air causing further issues for large scale OIHP based device production and deployment. Accordingly, the inventors have established three-cation material system variants using an innovative single solution thiocyanate (SCN) doped three cation material system allowing tailoring of perovskite grain size and microstructure to minimize degradation from exposure to atmospheric conditions. Further, solvent engineering techniques using the innovative single solution SCN doped three cation material system established by the inventors allow for large area processing, compact OIHP films with large crystal grains (>4 μm), and passivated grain boundaries.

IPC Classes  ?

• H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
• H01L 51/44 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation - Details of devices
• H01L 51/52 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) - Details of devices
• H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
• C01G 21/00 - Compounds of lead

Abstract

The present disclosure provides a method and apparatus using a novel PWM switching technique that requires only one PWM carrier signal and benefits from two logic functions to provide switching signals and provides the flying capacitor (FC) voltage as well as dc-link capacitors voltages regulated to their desired values without external control. It may also, eliminate the odd multiples of the switching harmonic clusters from the output voltage is possible; double the frequency of first switching harmonic; reduce filtering efforts may be required since the values of the output LC filter inductor and capacitor can be very much reduced. Furthermore, notable reduction in control complexity is possible using the novel PWM method.

IPC Classes  ?

• H02M 7/539 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
• H02M 1/088 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
• H02M 1/12 - Arrangements for reducing harmonics from AC input or output
• H02P 27/02 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude

Abstract

There is described a method of assessing an ink deposition accuracy in an electronic device printing process. The method generally has: printing a meta mate rial structure on a substrate using conductive ink, the metamaterial structure having a pattern of conductive elements interspersed with complementary insulating elements, the metamaterial structure having at least a terahertz resonance frequency; emitting a terahertz radiation beam incident on the metamaterial structure of the substrate, the incident terahertz radiation beam having power at least at the terahertz resonance frequency of the metamaterial structure; the metamaterial structure interacting with said incident terahertz radiation beam resulting in an outgoing terahertz radiation beam having a spectral response at least at the terahertz resonance frequency; measuring said spectral response of said outgoing terahertz radiation beam; assessing an ink deposition accuracy of said printing based on said measured spectral response; and generating a signal based on said assessed ink deposition accuracy.

IPC Classes  ?

• H05K 3/00 - Apparatus or processes for manufacturing printed circuits
• H05K 3/12 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using printing techniques to apply the conductive material
• H05K 3/22 - Secondary treatment of printed circuits

Abstract

A method of extracting water from sludge, wherein the sludge includes a magnetic ballast, wherein the sludge is positioned on an interface. It includes applying a magnetic treatment to the magnetically-ballasted sludge to extract water from the sludge.

IPC Classes  ?

• C02F 11/15 - Treatment of sludgeDevices therefor by de-watering, drying or thickening by treatment with electric, magnetic or electromagnetic fieldsTreatment of sludgeDevices therefor by de-watering, drying or thickening by treatment with ultrasonic waves
• C02F 11/12 - Treatment of sludgeDevices therefor by de-watering, drying or thickening
• C02F 11/14 - Treatment of sludgeDevices therefor by de-watering, drying or thickening with addition of chemical agents
• C02F 11/143 - Treatment of sludgeDevices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances

Abstract

There is described a system for determining a coronal artery tissue type. The system generally has an optical coherence tomography (OCT) imaging system being configured for acquiring an OCT image of coronal artery tissue; and a controller configured to perform the steps of: using trained feature extraction engines, extracting corresponding feature vectors comprising a plurality of features in at least a region of interest of the OCT image; using trained classification engines, determining corresponding preliminary coronal artery tissue types associated to the region of interest of the OCT image based on corresponding ones of the plurality of feature vectors; and using a majority voting engine, majority voting an output coronal artery tissue type associated to the region of interest of the OCT image based on the previously determined preliminary coronal artery tissue types.

IPC Classes  ?

• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• G06K 9/46 - Extraction of features or characteristics of the image
• G06K 9/78 - Combination of image acquisition and recognition functions
• G06N 3/02 - Neural networks

Abstract

Titanium dioxide (Ti02) forms the basis of devices for applications including sensing devices, solar cells, photo-electrochromics, and photocatalysis. Such devices exploit different phases of Ti02 within such devices and accordingly it would be beneficial to have an amorphous Ti02 precursor which allows crystalline phase spatial patterning, for the crystallization of the amorphous Ti02 precursor to be triggered at low energies, and with the crystalline phase controllable at room-temperature without necessitating complex handling whilst providing Ti02 phases that are stable over a prolonged period of time. Accordingly, there are provided processes for providing a Ti02 precursor and controlling the conversion of the Ti02 precursor from amorphous-to-anatase, amorphous-to-rutile, amorphous-to-mixture of anatase/rutile or from amorphous-to-anatase-to-rutile in a simple and efficient manner.

IPC Classes  ?

• C01G 23/047 - Titanium dioxide
• C01G 23/053 - Producing by wet processes, e.g. hydrolysing titanium salts

Abstract

Reference oscillators are ubiquitous in timing applications generally, and in modern wireless communication devices particularly. Microelectromechanical system (MEMS) resonators are of particular interest due to their small size and potential for integration with other MEMS devices and electrical circuits on the same chip. In order to support their use in high volume low cost applications it would be beneficial for MEMS designers to have MEMS resonator designs and manufacturing processes that whilst employing low cost low resolution semiconductor processing yield improved resonator performance thereby reducing the requirements of the oscillator circuitry. It would be further beneficial for the oscillator circuitry to be able to leverage the improved noise performance of differential TIAs without sacrificing power consumption.

IPC Classes  ?

• H03H 9/02 - Networks comprising electromechanical or electro-acoustic elementsElectromechanical resonators Details
• H03H 9/24 - Constructional features of resonators of material which is not piezoelectric, electrostrictive, or magnetostrictive
• H03F 3/45 - Differential amplifiers
• H03G 3/30 - Automatic control in amplifiers having semiconductor devices
• H03H 3/007 - Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
• H03B 5/36 - Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
• B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
• G01C 19/5684 - Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using the phase shift of a vibration node or antinode of essentially two-dimensional vibrators, e.g. ring-shaped vibrators the devices involving a micromechanical structure
• H03G 1/00 - Details of arrangements for controlling amplification
• G01C 19/5656 - Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using vibrating bars or beams the devices involving a micromechanical structure
• H03K 5/24 - Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
• G01C 19/5663 - ManufacturingTrimmingMountingHousings

Abstract

A pulley for a continuously variable transmission (CVT) and a method of controlling the pulley. The pulley has a main shaft, a fixed sheave, a mobile sheave and a cam system. The fixed sheave is fixedly mounted on the main shaft and has a fixed belt groove portion. The mobile sheave is movably mounted on the main shaft and has a mobile belt groove portion, the mobile sheave is mounted on the main shaft such that the fixed belt groove portion and the mobile belt groove portion form a riding path for a drive belt and is axially movable with respect to the main shaft such as to vary an effective diameter of the pulley by increasing or decreasing an axial space between the mobile sheave and the fixed sheave. The cam system is mounted at one end via a bearing fitted around the primary shaft to the mobile sheave. The cam system is adapted to provide an axial movement to the mobile sheave in order to increase or decrease the axial space between the mobile sheave and the fixed sheave.

IPC Classes  ?

• F16H 61/662 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for continuously variable gearings with endless flexible members
• F16H 9/18 - Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts only one flange of each pulley being adjustable
• F16H 63/06 - Final output mechanisms thereforActuating means for the final output mechanisms a single final output mechanism being moved by a single final actuating mechanism the final output mechanism having an indefinite number of positions
• F16H 59/24 - Inputs being a function of torque or torque demand dependent on the throttle opening
• F16H 59/54 - Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on signals from the brakes, e.g. parking brakes
• F16H 59/36 - Inputs being a function of speed

Abstract

A method, device and system for correcting errors in a group of received packets having a redundant packet. The method includes determining an inconsistent bit indicator for a bit position of the packets, determining a bit reliability indicator indicative of a potential bit error location in at least one packet, calculating a number of potential bit error locations for the bit position and identifying a correctable bit location accordingly. A method, device and system for correcting an error in a received packet. The method is adapted to calculate a checksum value of the received packet, verify if the checksum value is indicative of at least one bit error in the received packet, identify a predefined Checksum Pattern Type (CPT) according to the checksum value and determine at least one bit error event (BEE) accordingly. A method, device and system for decoding a plurality of received fountain encoded symbols.

IPC Classes  ?

• H04L 1/22 - Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
• H04L 1/24 - Testing correct operation
• H04L 12/70 - Packet switching systems

Abstract

Orbital angular momentum (OAM) based photonics promises researchers and systems designers with a new degree of freedom whilst offering annular intensity distributions rather than Gaussian intensity distributions. However, absence of an optical fiber design that not only supports propagation of OAM signals and cylindrical vector modes but does so with a large design space for designers to adj ust and tune the modal properties of the optical fiber supporting these OAM signals has hampered developments. Embodiments of the invention exploit photonic crystal fiber designs to support this design / manufacturing tunability whilst also supporting "endlessly single-radial order" modal regimes where the optical fiber is mono-annular over a wide range of optical wavelengths. Such optical fibers being able to support the transmission of a larger diversity of mono-annular modes (OAM or vector modes in nature, or otherwise) in a reliable manner and over a wider range of wavelengths than conventional silica optical fibers.

IPC Classes  ?

• G02B 6/122 - Basic optical elements, e.g. light-guiding paths
• G02F 1/35 - Non-linear optics

Abstract

A method is disclosed allowing digital 3D models to be indexed, searched, and compared, and to display the results in a 3D space. The method comprises four complementary parts: displaying, comparing/searching, face reconciliation, and ranking results. Each of these parts can fit in one another or be used independently. The implementation of a process for searching/comparing 3D models based on descriptors at least partly related to faces requires a face reconciliation process (pairing of faces between 3D models).

IPC Classes  ?

• G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
• G06F 17/30 - Information retrieval; Database structures therefor
• G06F 17/50 - Computer-aided design
• G06T 19/20 - Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
• G06K 9/62 - Methods or arrangements for recognition using electronic means
• G06T 7/66 - Analysis of geometric attributes of image moments or centre of gravity
• G06T 7/30 - Determination of transform parameters for the alignment of images, i.e. image registration

Abstract

The invention discloses a method for indexing 3D digital models, retrieving same, comparing same and displaying the results thereof in a 3D space. The method includes four complementary steps, i.e. display, comparison/search, surface matching and result classification. Said steps can be embedded within one another or can be implemented separately. The implementation of a process for searching/comparing 3D models based on descriptors partially relating to the surfaces requires a process of surface matching (pairing surfaces between the 3D models).

IPC Classes  ?

• G06T 19/00 - Manipulating 3D models or images for computer graphics
• G06F 17/50 - Computer-aided design

Abstract

A trial insert (28) for selecting between a first hip prosthesis (10) and a second hip prosthesis (10), the selected hip prosthesis (10) being fitted to a patient, the patient having a femur (16) and a pelvis (12), the pelvis (12) defining an acetabulum (14), the first hip prosthesis (10) including a first acetabular cup (20) attachable to the acetabulum (14) and a first replacement femoral head (24) attachable to the femur (16), the first acetabular cup (20) defining a substantially spherical first cup shell (21), the first cup shell (21) defining a first shell inner radius, the second hip prosthesis (10) including a second acetabular cup (20) attachable to the acetabulum (14) and a second replacement femoral head (24) attachable to the femur (16), the second acetabular cup (20) defining a substantially spherical second cup shell (21), the second cup shell (21) defining a second shell inner radius, the first shell inner radius being smaller than the second shell inner radius, the trial insert (28) comprising: a body (30); a head mount (34) for mounting the first and second replacement femoral heads (24) thereto, the head mount (34) being mechanically coupled to the body (30); and an insert-to-cup coupler (32) mountable to the first and second acetabular cups (20), the insert-to- cup coupler (32) being mechanically coupled to the body (30) and configurable between a smaller configuration in which the insert-to-cup coupler (32) is mountable to the first acetabular cup (20) and a larger configuration in which the insert-to-cup coupler(32) is mountable to the second acetabular cup (20).

IPC Classes  ?

• A61F 2/46 - Special tools for implanting artificial joints
• A61F 2/34 - Acetabular cups

Abstract

A acetabular reamer (10) for reaming an acetabulum, reaction forces being exerted onto the acetabular reamer by the acetabulum when the acetabulum is reamed, the acetabular reamer comprising: a body (12), the body (12) defining a rotation axis (13) about which the acetabular reamer (10) is rotatable; a reaming element (14, 14', 14') operatively coupled to the body (12) so as to be movable between a reaming element inner position and a reaming element outer position relatively thereto, the reaming element (14, 14', 14') being positioned further away from the rotation axis in the reaming element outer position than in the reaming element inner position; an actuator (16) operatively coupled to the reaming element (14, 14', 14') for moving the reaming element (14, 14', 14') between the reaming element inner and outer positions; and a reaming element lock (18) configurable between a locked configuration and an unlocked configuration, the reaming element lock (18) being operatively coupled to the reaming element (14, 14', 14') in a manner such that when the reaming element lock (18) is in the unlocked configuration, the reaming element (14, 14', 14') is substantially freely movable by the actuator (16) between the reaming element inner and outer positions, and when the reaming element lock (18) is in the locked configuration, the reaming element lock (18) substantially prevents the reaming element (14, 14', 14') from moving relatively to the body (12); the reaming element lock (18) being configured, sized and operatively coupled to the reaming element (14, 14', 14') and the body (12) in a manner such that when the reaming element lock (18) is in the locked configuration and the reaction forces are exerted onto the reaming element (14, 14', 14'), a larger portion of the reaction forces is transmitted to the body (12) than to the actuator (16).

IPC Classes  ?

• A61B 17/16 - Instruments for performing osteoclasisDrills or chisels for bonesTrepans
• A61F 2/46 - Special tools for implanting artificial joints

Abstract

An apparatus for binding together two biological tissue portions with a binding component. The apparatus includes a body defining a body handle for receiving a hand; at least one drum rotatably mounted to the body, the at least one drum including a binding component attachment for attaching the binding component thereto; a drum actuating lever mounted to the body, the drum actuating lever being operatively coupled to the at least one drum for rotating the at least one drum in a predetermined direction when the drum actuating lever is moved; and a crimping assembly operatively coupled to the body for holding a crimp component and selectively crimping the crimp component to the binding component. The body handle, the drum actuating lever and the crimping assembly are configured, sized and positioned in a manner such that the intended user is able to tighten the binding component around the at least one drum by moving the drum actuating lever using one hand; and the intended user is able to operate the crimping assembly to selectively crimp the crimp component to the binding component middle section using another hand while simultaneously holding the body handle with the first hand.

IPC Classes  ?

• A61B 17/03 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith

Abstract

A planar parallel mechanism having a platform movable in a plane along three degrees of freedom is described Existing technology fails to provide a manipulator with three degrees of freedom, wherein the mechanisms for moving the manipulator move in a decoupled fashion A manipulator and method of supporting and displacing an object which provides a solution to this problem comprises a base (1) and a moving portion (2) and articulated support legs (A1,A2,A3) between the moving portion (2) and the base (1) The articulated support legs (A1,A2,A3) are connected to the base (1) by a first translational joint, andjomtly restrict movement of the moving portion to displacements in a plane in two translational degrees of freedom and one rotational degree of freedom A decoupled displacement of the moving portion (2) along a first of the two translational degrees of freedom and a decoupled displacement of the moving portion (2) along the rotational degree of freedom both result from actuation of at most two of the first translational joints Actuators (3,3a,3b,6,7) are operatively connected to a different one of the first translational joints so as to selectively control the displacements of the moving portion (2) in the three degrees of freedom of the moving portion (2).

IPC Classes  ?

• B23Q 1/62 - Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only two sliding pairs only with perpendicular axes, e.g. cross-slides
• B23Q 1/48 - Movable or adjustable work or tool supports using particular mechanisms with sliding pairs and rotating pairs
• B23Q 16/00 - Equipment for precise positioning of tool or work into particular locations not otherwise provided for
• B25J 13/00 - Controls for manipulators

Abstract

Titanium dioxide (Ti02) forms the basis of devices for applications including sensing devices, solar cells, photo-electrochromics, and photocatalysis. Such devices exploit different phases of Ti02 within such devices and accordingly it would be beneficial to have an amorphous Ti02 precursor which allows crystalline phase spatial patterning, for the crystallization of the amorphous Ti02 precursor to be triggered at low energies, and with the crystalline phase controllable at room-temperature without necessitating complex handling whilst providing Ti02 phases that are stable over a prolonged period of time. Accordingly, there are provided processes for providing a Ti02 precursor and controlling the conversion of the Ti02 precursor from amorphous-to-anatase, amorphous-to-rutile, amorphous-to-mixture of anatase/rutile or from amorphous-to-anatase-to-rutile in a simple and efficient manner.

IPC Classes  ?

• C01G 23/047 - Titanium dioxide
• C01G 23/053 - Producing by wet processes, e.g. hydrolysing titanium salts

Abstract

There is described a system for determining a coronal artery tissue type. The system generally has an optical coherence tomography (OCT) imaging system being configured for acquiring an OCT image of coronal artery tissue; and a controller configured to perform the steps of: using trained feature extraction engines, extracting corresponding feature vectors comprising a plurality of features in at least a region of interest of the OCT image; using trained classification engines, determining corresponding preliminary coronal artery tissue types associated to the region of interest of the OCT image based on corresponding ones of the plurality of feature vectors; and using a majority voting engine, majority voting an output coronal artery tissue type associated to the region of interest of the OCT image based on the previously determined preliminary coronal artery tissue types.

IPC Classes  ?

• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• G06N 3/02 - Neural networks

Abstract

The present disclosure provides a method and apparatus using a novel PWM switching technique that requires only one PWM carrier signal and benefits from two logic functions to provide switching signals and provides the flying capacitor (FC) voltage as well as dc-link capacitors voltages regulated to their desired values without external control. It may also, eliminate the odd multiples of the switching harmonic clusters from the output voltage is possible; double the frequency of first switching harmonic; reduce filtering efforts may be required since the values of the output LC filter inductor and capacitor can be very much reduced. Furthermore, notable reduction in control complexity is possible using the novel PWM method.

IPC Classes  ?

• H02M 1/088 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
• H02M 1/12 - Arrangements for reducing harmonics from AC input or output
• H02M 7/539 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
• H02P 27/02 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude

Abstract

The invention discloses a method for indexing 3D digital models, retrieving same, comparing same and displaying the results thereof in a 3D space. The method includes four complementary steps, i.e. display, comparison/search, surface matching and result classification. Said steps can be embedded within one another or can be implemented separately. The implementation of a process for searching/comparing 3D models based on descriptors partially relating to the surfaces requires a process of surface matching (pairing surfaces between the 3D models).

IPC Classes  ?

• G06T 19/00 - Manipulating 3D models or images for computer graphics

Abstract

There is described a method of assessing an ink deposition accuracy in an electronic device printing process. The method generally has: printing a meta mate rial structure on a substrate using conductive ink, the metamaterial structure having a pattern of conductive elements interspersed with complementary insulating elements, the metamaterial structure having at least a terahertz resonance frequency; emitting a terahertz radiation beam incident on the metamaterial structure of the substrate, the incident terahertz radiation beam having power at least at the terahertz resonance frequency of the metamaterial structure; the metamaterial structure interacting with said incident terahertz radiation beam resulting in an outgoing terahertz radiation beam having a spectral response at least at the terahertz resonance frequency; measuring said spectral response of said outgoing terahertz radiation beam; assessing an ink deposition accuracy of said printing based on said measured spectral response; and generating a signal based on said assessed ink deposition accuracy.

IPC Classes  ?

• H05K 3/00 - Apparatus or processes for manufacturing printed circuits
• H05K 3/12 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using printing techniques to apply the conductive material
• H05K 3/22 - Secondary treatment of printed circuits