Abstract:
A sensor assembly including one or more capacitive micromachined ultrasonic transducer (CMUT) microarray modules which are provided with a number of individual transducers. The transducers include silicon device and backing layers joined by a fused benzocyclobutene (BCB) layer which defines the transducer air gap, and which are arranged to simulate or orient individual transducers in a hyperbolic paraboloid geometry. The transducers/sensor are arranged in a matrix and are activatable to emit and receive reflected beam signals at a frequency of between about 100 to 170 kHz.
Abstract:
A sensor assembly including one or more capacitive micromachined ultrasonic transducer (CMUT) microarray modules which are provided with a number of individual transducers. The microarray modules are arranged to simulate or orient individual transducers in a hyperbolic paraboloid geometry. The transducers/sensor are arranged in a rectangular or square matrix and are activatable individually, selectively or collectively to emit and received reflected beam signals at a frequency of between about 100 to 170 kHz.
Abstract:
Single-domain antibodies that bind pro-apoptotic proteins Bax and caspase-3 are identified and isolated. These single-domain antibodies may be used to modulate the activity of Bax and caspase-3, thereby modulating the symptoms and steps of oxidative stress and/or cell apoptosis, including Bax dimerization, mitochondrial permeabilization and the release of apoptotic proteins.
Abstract:
In a preferred embodiment, there is provided a method for preparing a crown ether, the method comprising: loading a resin having a resin functional group with a linking compound having a functional group selected for coupling to the resin functional group and at least two carbon atoms each having a substituent; coupling the linking compound to a polyethylene glycol having two terminal carbon atoms each bonded to an optionally protected terminal hydroxyl group to obtain a cyclized intermediate, whereby one said at least two carbon atoms or the substituent and an associated one of the two terminal carbon atoms or the hydroxyl groups undergo a coupling or substitution reaction; and removing the linking compound and the cyclized intermediate from the resin.
Abstract:
A motor drive system and method for determining an optimized efficiency of the motor drive system are provided. The motor drive system includes a system controller, a motor drive having includes an inverter configured to generate the AC power upon one or more motor leads, and an electric motor, which is to convert the AC power from the motor leads to rotational energy. A dynamometer may include a load coupled to the shaft and sensors to measure to measure operating characteristics such as torque and speed of the electric motor. The system controller is configured to generate a lookup table, with an entry describing an output current command for operating the inverter and the motor at a maximum system efficiency for a given combination rotational speed and output torque. Motor temperature may also be measured and used as an additional index into the lookup table.
Abstract:
A resonator and/or transducer comprising at least one deflectable membrane, a fixed substrate, and at least one cavity defined between the at least one deflectable membrane and the fixed substrate. A Free to Fixed Boundary Ratio (FFBR) of the deflectable membrane is selected to optimize a characteristic of the resonator and/or transducer, such as resonant frequency, displacement, operating voltage, electromechanical coupling coefficient, or mass sensitivity.
Abstract:
In a preferred embodiment, there is provided a method for measuring a capacitance change or difference of a sensing capacitor, the method comprising: sweeping a frequency range of first and second alternating current (AC) voltage sources respectively connected to first and second amplifiers, said first amplifier having or connected to a first reference capacitor or electrode and said second amplifier having or connected to a second reference capacitor or electrode and the sensing capacitor; detecting first and second high cutoff frequencies respectively of the first and second amplifiers; and determining a difference between the first and second high cutoff frequencies, wherein the difference reflects the capacitance change or difference.
Abstract:
In a preferred embodiment, there is provided a protecting group for protecting the thiol side chain of a cysteine residue, the protecting group comprising a Diels-Alder cycloadduct of a furan and a maleimide, and optionally, a linker interposed between the thiol side chain and the Diels-Alder cycloadduct.
Abstract:
A motor drive system and method for determining an optimized efficiency of the motor drive system are provided. The motor drive system includes a system controller, a motor drive having includes an inverter configured to generate the AC power upon one or more motor leads, and an electric motor, which is to convert the AC power from the motor leads to rotational energy. A dynamometer may include a load coupled to the shaft and sensors to measure to measure operating characteristics such as torque and speed of the electric motor. The system controller is configured to generate a lookup table, with an entry describing an output current command for operating the inverter and the motor at a maximum system efficiency for a given combination rotational speed and output torque. Motor temperature may also be measured and used as an additional index into the lookup table.
Abstract:
A system and method are provided for growing cyber security awareness relating to social engineering and administering anti-social engineering training. The system makes use of artificial intelligence (AI), cyber security strategies and/or gamification principles to help organizations better understand and prepare for potential social engineering security risks. One embodiment of the system includes a reinforcement learning (RL) module, which further includes a trained predictor and an agent that interacts with a target. The RL module receives as input a training dataset that includes information about the target. The trained predictor generates a bait for the target based on the input training dataset; and the agent delivers the generated bait as an attack on the target. The RL module outputs a playbook of the attack, which can be used to update the training dataset and the trained predictor for subsequent iterative attacks, and/or to recommend social engineering countermeasures to the target.