Abstract: A method for preparing a titanium nitride-titanium diboride-cubic boron nitride composite material is disclosed. Titanium powder and cubic boron nitride raw powders are mixed by a planetary ball milling method, and then the titanium nitride-titanium diboride-cubic boron nitride composite material is prepared through the steps of wet mixing, drying, sieving, pre-sintering through a high-temperature vacuum furnace, cold isostatic press molding and high-temperature sintering.

Abstract: The present invention relates to a new zinc binding fusion protein that is a fusion protein of glutathione S-transferase (GST) and metallothionein (MT), to which zinc bind, providing an efficacy in preventing or treating a ROS-related disease and heavy metal poisoning.

Abstract: Apparatus and methods are provided to calibrate a closed-loop envelop tracking system for a power amplifier of a wireless transmitter using standardized modulation signals. In one novel aspect, a closed-loop adaptive method is used to track changes in PA nonlinearity due to environmental or circuitry changes during operating condition using standardized modulation signals. In one embodiment, the PA supply voltage compensation lookup table (LUT) and/or the phase compensation LUT is updated during normal operation to sustain good linearity and efficiency performance. In another novel aspect, the PA target response is adjusted in response to changes in PA-related system configuration, such as changes in PA bias settings, and/or indicators measured from the transmitter such as changes in impedance or temperature changes for the RF module or the PA module. The PA supply voltage compensation LUT and/or the phase LUT is updated accordingly upon adjustment of the PA target response.

Abstract: An alignment mark is adapted to be positioned relative to a head of a patient, and includes an alignment unit and a marking unit. The alignment unit includes a pad member and an alignment member. The pad member is adapted to adhere to a scalp of the patient. The alignment member has a threaded section that extends through the pad member and that is adapted to be threadedly locked into a cranium of the patient, and a head section that is opposite to the threaded section and that abuts against the pad member. The marking unit is removably disposed on the alignment unit, and includes a marking member.

Abstract: A stereotactic stabilizer is adapted to be mounted to a fixing device and to be mounted with a stereotactic surgical instrument. The stereotactic stabilizer includes base seat and a rod member. The base seat has a main portion and an instrument connecting portion that is provided on the main portion and that is adapted to be mounted with the stereotactic surgical instrument. The rod member extends from the base seat and is adapted to be mounted to the fixing device so as to be positioned relative to a head of a patient.

Abstract: A communication unit has an envelope tracking system operably coupled to a power amplifier, PA, module. The envelope tracking system has at least one slew rate module arranged to re-distribute a slew rate across a number of input samples according to a maximum slew rate of the number of input samples; and a supply modulator arranged to variably control a supply voltage for the PA module in response to an output of the at least one slew rate module.

Abstract: A foamed biocompatible material for use in tissue repair and a kit for producing same. The kit includes a container having a valve and an inlet, and a tissue-repair composition containing a biocompatible material and a liquid carrier, in which the composition is placed in the inlet of the container and the inside of container has a pressure lower than that of the outside so that, upon opening the valve, the composition is forced into the container by the pressure difference to form a foam inside the container. Also disclosed is a method of preparing a foamed biocompatible material for tissue repair.

Abstract: A power supply apparatus includes an inductor to store and discharge energy and a circuit to charge the inductor using a plurality of charging pulses. The circuit skips a charging pulse of the plurality of charging pulses to reduce overcurrent associated with the inductor.

Abstract: A radio frequency (RF) receiver includes a digital tuning engine; and I-path and Q-path analog filters, tuned by the digital tuning engine. The digital tuning engine gets an I/Q imbalance difference, and the digital tuning engines tunes the I-path analog filter and/or the Q-path analog filter based on the I/Q imbalance difference.

Abstract: A method for forming an aqueous polyurethane dispersion including providing an isocyanate (NCO)-terminated prepolymer with a side-chain reactive functional group by admixing (i) at least one diisocyanate, (ii) at least one difunctional polyol, (iii) a short-chain diol monomer having a side-chain reactive functional group or a modified clay thereof, (iv) at least one hydroxy carboxylic acid compound and (v) a hydrophilic cosolvent; neutralizing the NCO-terminated prepolymer with a tertiary amine; dispersing the NCO-terminated prepolymer in water; and admixing the NCO-terminated prepolymer with at least one chain extending agent comprising a hydrophilic diamine; wherein the short-chain diol monomer (iii) is expressed by structural formula (I): wherein, A is an azetidine-2,4-dione functional group or a malonamide-linked alkyl group and B is a nitrogen-linked di-hydroxy terminal group or tertiary amine-linked di-hydroxy terminal group wherein IDD was synthesized by methylenedi-p-phenyl dii

Abstract: A method of configuring at least one frequency dependent (FD), in-phase/quadrature (I/Q), imbalance compensation filter within a radio frequency (RF) module is described. The method includes applying an input signal to an input of the RF module, receiving a filtered I-path signal for the RF module and deriving at least one I-path filtering estimate value therefrom, receiving a filtered Q-path signal for the RF module and deriving at least one Q-path filtering estimate value therefrom, and configuring the at least one FD I/Q imbalance compensation filter based at least partly on at least one ratio between the derived I-path and Q-path filtering estimate values.

Abstract: A communication unit comprises a radio frequency, RF, transmitter comprising: a power amplifier, PA, module; an envelope tracking system operably coupled to the PA module and arranged to variably control a supply voltage for the PA module; and a load control system operably coupled to an output of the PA module and arranged to control a power amplifier output load.

Abstract: A communication unit comprises a radio frequency, RF, transmitter comprising: a power amplifier, PA, module; an envelope tracking system operably coupled to the PA module and arranged to variably control a supply voltage for the PA module; and a load control system operably coupled to an output of the PA module and arranged to control a power amplifier output load.

Abstract: A radio frequency (RF) receiver includes a digital tuning engine; I-path and Q-path analog filters, tuned by the digital tuning engine; and a digital compensation circuit. The digital tuning engine executes a RC (resistor-capacitor) time constant calibration to adjust respective cut-off frequencies of the I-path analog filter and the Q-path analog filter. The digital tuning engine executes a filter mismatch calibration to match the I-path analog filter and the Q-path analog filter. The digital tuning engine executes a filter residual mismatch calibration to match an I-path response from the I-path analog filter to the digital compensation circuit and a Q-path response from the Q-path analog filter to the digital compensation circuit.

Abstract: A communication unit has an envelope tracking system operably coupled to a power amplifier, PA, module. The envelope tracking system has at least one slew rate module arranged to re-distribute a slew rate across a number of input samples according to a maximum slew rate of the number of input samples; and a supply modulator arranged to variably control a supply voltage for the PA module in response to an output of the at least one slew rate module.

Abstract: A communication unit includes a radio frequency, RF, transmitter having: a power amplifier, PA, module; and an envelope tracking system operably coupled to the PA module and having a supply modulator arranged to variably control a supply voltage for the PA module in response to a number of input samples of an envelope signal; wherein the envelope tracking system further includes at least one slew rate module arranged to re-distribute a maximum slew rate across the number of input samples in a provision of a variable power supply to the PA module.

Abstract: A communication unit includes a radio frequency, RF, transmitter having: a power amplifier, PA, module; and an envelope tracking system operably coupled to the PA module and having a supply modulator arranged to variably control a supply voltage for the PA module in response to a number of input samples of an envelope signal; wherein the envelope tracking system further includes at least one slew rate module arranged to re-distribute a maximum slew rate across the number of input samples in a provision of a variable power supply to the PA module.

Abstract: An artificial dura biomedical device and a brain surgery method utilizing the same are disclosed. The steps includes: fixing an artificial dura to a partial skull; and fixing the partial skull with the artificial dura to a cut hole of a whole skull. The artificial dura biomedical device includes an artificial dura and a connecting element. The connecting element fixes the partial skull with the artificial dura.

Abstract: A power drive system of light-emitting diode (LED) strings includes an isolation transformer, a current-sharing capacitor, two rectifying units, and a current control integrated circuit (IC). The isolation transformer has a primary-side winding and a secondary-side winding with a dotted terminal and a non-dotted terminal. The current-sharing capacitor is connected to the dotted terminal at one terminal thereof. One rectifying units is connected to the other terminal of the current-sharing capacitor, and the other rectifying unit is connected to the non-dotted terminal of the secondary-side winding. Each rectifying unit is connected to one LED string. The current control IC is connected between common points of the rectifying units and corresponding anode terminals of the LED strings and corresponding cathode terminals of the LED strings.

Abstract: A foamed biocompatible material for use in tissue repair and a kit for producing same. The kit includes a container having a valve and an inlet, and a tissue-repair composition containing a biocompatible material and a liquid carrier, in which the composition is placed in the inlet of the container and the inside of container has a pressure lower than that of the outside so that, upon opening the valve, the composition is forced into the container by the pressure difference to form a foam inside the container. Also disclosed is a method of preparing a foamed biocompatible material for tissue repair.