Abstract: Applying a bias magnetic field to a solid-state spin sensor enables vector magnetic field measurements with the solid-state spin sensor. Unfortunately, if the bias magnetic field drifts slowly, it creates noise that confounds low-frequency field measurements. Fortunately, the undesired slow drift of the magnitude of the bias magnetic field can be removed, nullified, or cancelled by reversing the direction (polarity) of the bias magnetic field at known intervals. This makes the resulting solid-state spin sensor system suitable for detecting low-frequency (mHz, for example) changes in magnetic field or other physical parameters.

Abstract: Combination step bolt and fall protection anchorage assemblies are disclosed that may be mounted on structures such as communication towers, poles and antennas. The assemblies include a mounting plate that can be bolted to the structure, an integrated anchorage clip connected to the mounting plate having at least one safety hook hole extending therethrough, and a step bolt secured to the integrated anchorage clip.

Abstract: Combination step bolt and fall protection anchorage assemblies are disclosed that may be mounted on structures such as communication towers, poles and antennas. The assemblies include a mounting plate that can be bolted to the structure, an integrated anchorage clip connected to the mounting plate having at least one safety hook hole extending therethrough, and a step bolt secured to the integrated anchorage clip.

Abstract: Applying a bias magnetic field to a solid-state spin sensor enables vector magnetic field measurements with the solid-state spin sensor. Unfortunately, if the bias magnetic field drifts slowly, it creates noise that confounds low-frequency field measurements. Fortunately, the undesired slow drift of the magnitude of the bias magnetic field can be removed, nullified, or cancelled by reversing the direction (polarity) of the bias magnetic field at known intervals. This makes the resulting solid-state spin sensor system suitable for detecting low-frequency (mHz, for example) changes in magnetic field or other physical parameters.

Abstract: Systems, apparatus, and methods for collecting, interpreting, and utilizing noise exposure data may include sensors to obtain an analog signal representative of impulse noise sound pressure and an analog signal representative of continuous noise sound pressure. At least one ADC may generate digital signals by sampling the analog signals at rates equal to or greater than twice the reciprocal of a minimum impulse noise rise time. Accelerometers may obtain data in close proximity to and remote from the sensors. At least one processor may include a first combining node to combine the digital signals to represent both the continuous noise and the impulse noise, a shock-artifact detection filter to identify a time frame including a shock artifact based on the accelerometry data, a frequency filter to generate a background-removed audio signal, an adaptive filter to estimate the shock artifact, and a second combining node to produce a shock-artifact-free audio signal.

Abstract: Reliable, real-time heart and respiratory rates are key vital signs used in evaluating the physiological status in many clinical and non-clinical settings. Measuring these vital signs generally requires superficial attachment of physically or logistically obtrusive sensors to subjects that may result in skin irritation or adversely influence subject performance. Given the broad acceptance of ingestible electronics, the approach disclosed here enables vital sign monitoring internally from the gastrointestinal tract. The large animal (porcine) experiments and a robust processing disclosed herein demonstrate the feasibility of this approach. Implementing vital sign monitoring as a stand-alone technology or in conjunction with other ingestible devices has the capacity to significantly aid telemedicine, optimize performance monitoring of athletes, military service members, and first-responders, as well as provide a facile method for rapid clinical evaluation and triage.

Abstract: Systems, apparatus, and methods for collecting, interpreting, and utilizing noise exposure data may include sensors to obtain an analog signal representative of impulse noise sound pressure and an analog signal representative of continuous noise sound pressure. At least one ADC may generate digital signals by sampling the analog signals at rates equal to or greater than twice the reciprocal of a minimum impulse noise rise time. Accelerometers may obtain data in close proximity to and remote from the sensors. At least one processor may include a first combining node to combine the digital signals to represent both the continuous noise and the impulse noise, a shock-artifact detection filter to identify a time frame including a shock artifact based on the accelerometry data, a frequency filter to generate a background-removed audio signal, an adaptive filter to estimate the shock artifact, and a second combining node to produce a shock-artifact-free audio signal.

Abstract: Combination step bolt and fall protection anchorage assemblies are disclosed that may be mounted on structures such as communication towers, poles and antennas. The assemblies include a mounting plate that can be bolted to the structure, an integrated anchorage clip connected to the mounting plate having at least one safety hook hole extending therethrough, and a step bolt secured to the integrated anchorage clip.

Abstract: Reliable, real-time heart and respiratory rates are key vital signs used in evaluating the physiological status in many clinical and non-clinical settings. Measuring these vital signs generally requires superficial attachment of physically or logistically obtrusive sensors to subjects that may result in skin irritation or adversely influence subject performance. Given the broad acceptance of ingestible electronics, the approach disclosed here enables vital sign monitoring internally from the gastrointestinal tract. The large animal (porcine) experiments and a robust processing disclosed herein demonstrate the feasibility of this approach. Implementing vital sign monitoring as a stand-alone technology or in conjunction with other ingestible devices has the capacity to significantly aid telemedicine, optimize performance monitoring of athletes, military service members, and first-responders, as well as provide a facile method for rapid clinical evaluation and triage.

Abstract: Spinal correction comparable to that achieved through mastery of the specific upper spinal correction procedure may be produced through the simple application of harmonic vibrations and light long axis traction to the spine. Accordingly, complex spine correction may be achieved through a relatively simple procedure, apt for automation. During the procedure the patient may be placed in a supine position and the patient's head supported. The patient's head may be elevated and/or positioned forward with respect to the rest of the body. Light long axis traction is then induced along the spine. During the induction of traction, vibrations are applied to the spine.

Abstract: A system and method are provided for monitoring utilization of network resources in a photonic network. A monitoring threshold is set for monitoring utilization of network components of interest. A resource utilization data processor obtains resource utilization data indicating utilization of the network resources. A threshold crossing determination unit determines if threshold crossing has occurred based on the utilization data and the monitoring threshold. A user interface indicates the utilization of the network components in accordance with the determination of the threshold crossing.

Abstract: Spinal correction comparable to that achieved through mastery of the specific upper spinal correction procedure may be produced through the simple application of harmonic vibrations and light long axis traction to the spine. Accordingly, complex spine correction may be achieved through a relatively simple procedure, apt for automation. During the procedure the patient may be placed in a supine position and the patient's head supported. The patient's head may be elevated and/or positioned forward with respect to the rest of the body. Light long axis traction is then induced along the spine. During the induction of traction, vibrations are applied to the spine.

Abstract: A particle spreader system for efficiently evenly distributing particles (i.e. grain, seed, etc.) within a storage bin. The particle spreader system generally includes a manifold including a plurality of discharge openings and a lower opening, a plurality of gates attached to the manifold, wherein the gates incrementally adjust about the discharge openings and a plurality of chutes attached to the manifold, wherein the plurality of chutes extend outwardly from the plurality of discharge openings. The manifold suspendedly attaches to an inlet of a storage bin, wherein the manifold receives a mass of particles via the inlet and wherein the gates regulates a flow of the mass of particles through the discharge openings.

Abstract: A valve assembly according to the present invention includes a valve housing having a first end and a second end. A selectively closeable flow path runs through the valve housing. A valve body is disposed in the valve housing. The valve body is moveable from a first position closing the flow path to a second position opening the flow path. The valve body has a channel therethrough. A secondary chamber is provided adjacent the valve body in communication with the channel. An exhaust port is provided in communication with the secondary chamber. A solenoid is provided adjacent the secondary exhaust port, the solenoid adapted to selectively open the secondary exhaust port. A compressed gas gun employing the valve assembly is also provided.

Abstract: A paintball marker for launching a paintball using a bolt with an internal impact ring for contacting a power tube sized to fit within the bolt. The power tube has an internal gas passage for supplying launching gas to the paintball and an external striking surface that is contacted by the bolt's impact ring. A main seal is positioned selectively seal the internal passage of the power tube from a gas supply. Movement of the bolt causes the impact ring to contact the striking surface to unseat the power tube from the main seal to release gas from the main gas chamber through the internal passage into the breach to launch the paintball.

Abstract: A self-regulating valve assembly for a compressed gas gun includes a valve housing and a valve body disposed within the valve housing. The rearward end of the valve body defined an outlet port. The forward end of the valve body defines a gas balance reservoir open to and in communication with the breech of the gun. A valve gas passage is provided between the valve body and the valve housing, the valve gas passage providing communication between the outlet port of the valve body and the gas balance reservoir of the valve body. A slidable valve poppet is disposed within the valve body and includes a sensing end adjacent to and at least partially within the gas balance reservoir, the sensing end having a sensing face adapted to react to gas pressure within the gas balance reservoir. The valve poppet is slidable between a closed position and an open position. A valve spring within the valve body biases the valve poppet toward the closed position.

Abstract: A particle spreader system for efficiently evenly distributing particles (i.e. grain, seed, etc.) within a storage bin. The particle spreader system generally includes a manifold including a plurality of discharge openings and a lower opening, a plurality of gates attached to the manifold, wherein the gates incrementally adjust about the discharge openings and a plurality of chutes attached to the manifold, wherein the plurality of chutes extend outwardly from the plurality of discharge openings. The manifold suspendedly attaches to an inlet of a storage bin, wherein the manifold receives a mass of particles via the inlet and wherein the gates regulates a flow of the mass of particles through the discharge openings.

Abstract: A self-regulating valve assembly for a compressed gas gun includes a valve housing and a valve body disposed within the valve housing. The rearward end of the valve body defined an outlet port. The forward end of the valve body defines a gas balance reservoir open to and in communication with the breech of the gun. A valve gas passage is provided between the valve body and the valve housing, the valve gas passage providing communication between the outlet port of the valve body and the gas balance reservoir of the valve body. A slideable valve poppet is disposed within the valve body and includes a sensing end adjacent to and at least partially within the gas balance reservoir, the sensing end having a sensing face adapted to react to gas pressure within the gas balance reservoir. The valve poppet is slideable between a closed position and an open position. A valve spring within the valve body biases the valve poppet toward the closed position.