Abstract: Disclosed herein are ultrasonic transducer systems comprising: an ultrasonic imager comprising a plurality of pMUT transducer elements; and one or more circuitries connected electronically to the plurality of transducer element, the one or more circuitries configured to enable: pulse transmission and reception of reflected signal for the ultrasonic transducer, where inductors are used to equalize impedance to obtain greater pressure output. Also disclosed are methods of altering a pressure of an ultrasonic wave emitted by an ultrasonic transducer.

Abstract: Composite materials containing ferrite particles and ferromagnetic metallic particles are described for high capacity, low loss, high frequency inductor applications. The materials allow exceptional performance at frequencies from 10 kHz to above 500 MHz.

Abstract: A health sensor system and method can include a wearable non-invasive biosensor for capturing cardiac waveform signals such as electrocardiogram (ECG) signals and composite vibration objects over one or more channels, one or more processors operatively coupled to the wearable non-invasive biosensor, and memory having computer instructions which causes the system to perform certain operations. In some embodiments, the operations can include powering the health sensor system in response to receiving a radio frequency signal using a near field communication protocol, monitoring pulmonary artery pressures based on cardiac time intervals during a period when the health sensor system is powered by the radio frequency signal, performing a heart and lung function assessment based on the monitoring of the pulmonary artery pressures, and presenting the heart and lung function assessment. In some embodiments, the biosensor can be a single NFC patch biosensor.

Abstract: Disclosed herein are ultrasonic transducer systems comprising: an ultrasonic imager comprising a plurality of pMUT transducer elements; and one or more circuitries connected electronically to the plurality of transducer element, the one or more circuitries configured to enable: pulse transmission and reception of reflected signal for the ultrasonic transducer, where inductors are used to equalize impedance to obtain greater pressure output. Also disclosed are methods of altering a pressure of an ultrasonic wave emitted by an ultrasonic transducer.

Abstract: A system for marking cardiac time intervals from heart valve signals includes a non-invasive sensor unit for capturing electrical signals and composite vibration objects, a memory containing computer instructions, and one or more processors coupled to the memory. The one or more processors causes the one or more processors to perform operations including separating a plurality of individual heart vibration events into heart valve signals from the composite vibration objects, and marking cardiac time interval from the heart valve signals by detecting individual heartbeats using at least one or more of a PCA algorithm or deep learning.

Abstract: Exemplary pre-operative electrode-dispensing neuromonitoring gun systems and methods involve the administration of a neuromonitoring electrode to a patient. A system can include a dispensing device and a cartridge. The dispensing device can have a case, a trigger, and a pusher. The cartridge can have a plurality of electrodes. In some cases, an electrode can include two subdermal leads, a posterior connection port or plug, and a casing to house the connection port before placement and to cover the leads upon removal.

Abstract: Disclosed herein are ultrasonic transducer systems comprising: an ultrasonic imager comprising a plurality of pMUT transducer elements; and one or more circuitries connected electronically to the plurality of transducer element, the one or more circuitries configured to enable: pulse transmission and reception of reflected signal for the ultrasonic transducer, where inductors are used to equalize impedance to obtain greater pressure output. Also disclosed are methods of altering a pressure of an ultrasonic wave emitted by an ultrasonic transducer.

Abstract: The present disclosure is directed to methods of Quantum Spin Engineering of spinel superparamagnetic ferrite nanoparticles (SMFNs) for MRI contrast agents and for magnetohyperthermia agents. Using the methods herein, the magnetic properties of the SMFNs can be controlled by changing the amount of 3d-transition element cations having unpaired electrons in the 3d orbital that occupy the octahedral sites of the spinel crystal form, to form mixed spinels, while anions in the spinels can be utilized to magnetically couple the cations utilizing intra-crystalline angles determined by ion sizes and crystal structure, and further tuning of other critical parameters is provided. The mixed spinels disclosed herein provide enhanced MRI contrast agents and improved magnetohyperthermia agents with lower toxicity and safety concerns, while the production methods disclosed herein have lower cost.

Abstract: A composite magnetic material has a plurality of grains having a magnetic ferrite phase, grain boundaries surrounding the grains, and a plurality of nanoparticles disposed at the grain boundaries. The nanoparticles of the composite material are both magnetic and electrically insulating, having a magnetic flux density of greater than about 100 mT and an electrical resistivity of at least about 108 Ohm-cm. Also provided is a method of making the composite material. The material is useful for making inductor cores of electronic devices.

Abstract: Disclosed herein are ultrasonic transducer systems comprising: an ultrasonic imager comprising a plurality of pMUT transducer elements; and one or more circuitries connected electronically to the plurality of transducer element, the one or more circuitries configured to enable: pulse transmission and reception of reflected signal for the ultrasonic transducer; and control of the ultrasonic transducer, the control of the ultrasonic transducer comprising focusing ultrasonic beam in an elevation direction.

Abstract: A system for marking cardiac time intervals from heart valve signals includes a non-invasive sensor unit for capturing electrical signals and composite vibration objects, a memory containing computer instructions, and one or more processors coupled to the memory. The one or more processors causes the one or more processors to perform operations including separating a plurality of individual heart vibration events into heart valve signals from the composite vibration objects, and marking cardiac time interval from the heart valve signals by detecting individual heartbeats using at least one or more of a PCA algorithm or deep learning.

Abstract: A composite magnetic material has a plurality of grains having a magnetic ferrite phase, grain boundaries surrounding the grains, and a plurality of nanoparticles disposed at the grain boundaries. The nanoparticles of the composite material are both magnetic and electrically insulating, having a magnetic flux density of greater than about 100 mT and an electrical resistivity of at least about 108 Ohm-cm. Also provided is a method of making the composite material. The material is useful for making inductor cores of electronic devices.

Abstract: Devices and methods for directing a magnetic field into a body party of a subject are provided. The devices include at least one electromagnetic coil, a magnetic core or yoke, and a pair of flux concentrators. The flux concentrators are separated by a gap into which the body part fits and through which the flux concentrators focus the magnetic field. The devices allow magnetic fields to be transmitted through the gap with higher intensity at greater distances from the device than possible with previous designs. The methods of using such devices allow the delivery of magnetic fields with higher intensity to the interior of a body part without exposing interposed proximal regions to magnetic fields of unduly high intensity. The devices and methods are useful for deep transcranial magnetic stimulation of the brain to treat various medical conditions.

Abstract: Devices and methods for directing a magnetic field into a body party of a subject are provided. The devices include at least one electromagnetic coil, a magnetic core or yoke, and a pair of flux concentrators. The flux concentrators are separated by a gap into which the body part fits and through which the flux concentrators focus the magnetic field. The devices allow magnetic fields to be transmitted through the gap with higher intensity at greater distances from the device than possible with previous designs. The methods of using such devices allow the delivery of magnetic fields with higher intensity to the interior of a body part without exposing interposed proximal regions to magnetic fields of unduly high intensity. The devices and methods are useful for deep transcranial magnetic stimulation of the brain to treat various medical conditions.

Abstract: A link layer system is provided. The link layer system a first link layer control module and a retry queue for storing a transmitted data packet. The retry control module is coupled to the first link layer control module, which directs the retry queue to discard the transmitted data packet when an acknowledgment bit is received by the first link layer control module.

Abstract: A method of distributing stored value cards where value is not loaded to the account associated with each card until the card holder completes and activates process is disclosed. By delaying the funding of the settlement account associated with stored value cards until card activation, cash flow efficiencies and savings are achieved that make stored value card rebate plans and other marketing and loyalty programs economical.

Abstract: The invention provides a method of giving a gift instrument having a value to a recipient. The method comprises (a) ordering the gift instrument from a central processing facility, (b) delivering the gift instrument to the recipient, (c) receiving the gift instrument by the recipient, (d) redeeming the gift instrument by selecting goods or services from a redemption facility, where the goods or services have a value corresponding to the value of the gift instrument, and (e) providing the goods or services to the recipient. The step of ordering the gift instrument may include accessing an Internet web page associated with the central processing facility. The step of delivering the gift instrument may include sending an electronic text message to the recipient's text-compatible cell phone.

Abstract: A link layer system is provided. The link layer system a first link layer control module and a retry queue for storing a transmitted data packet. The retry control module is coupled to the first link layer control module, which directs the retry queue to discard the transmitted data packet when an acknowledgment bit is received by the first link layer control module.

Abstract: A method for extending consumer credit comprises identifying a consumer having a first line of credit and extending a second line of credit restricted for use with a designated merchant or merchant association under a consumer's account. In some embodiments, a risk abatement account is funded to pay uncollectible receivables of the credit provider created by the second line of credit. Other embodiments include incentives for one or both of use and timely payment(s) against the second line of credit. A system comprises a network, a management engine and an interface. The management engine associates a first line of credit and a second line of credit with a consumer account. The second line of credit is restricted to use with a designated merchant or association. When a consumer makes a purchase from the designated merchant(s), the management engine records the purchase transaction on the consumer's second line of credit.

Abstract: A link layer system is provided. The link layer system a first link layer control module and a retry queue for storing a transmitted data packet. The retry control module is coupled to the first link layer control module, which directs the retry queue to discard the transmitted data packet when an acknowledgment bit is received by the first link layer control module.