Abstract: Example embodiments of the present disclosure relate to improved HVAC devices and kits for HVAC devices that improve the sound attenuation associated with the device, particularly low-frequency noise. An example embodiment includes an improved furnace including a housing with a combustion air chamber, a heat exchanger chamber, and a circulation blower chamber, wherein the combustion air chamber comprises a burner assembly and a combustion air fan, the furnace also includes a sound attenuation layer including a first acoustic metamaterial layer coupled to the combustion air chamber and tuned to attenuate sound for a first frequency band, one or more housing openings fluidly connecting the combustion air chamber to an environment outside the housing, wherein the sound attenuation layer includes a discontinuous section that aligns with one or more of the housing openings.

Abstract: Example embodiments of the present disclosure relate to improved HVAC devices and kits for HVAC devices that improve the sound attenuation associated with the device, particularly low-frequency noise. An example embodiment includes an improved furnace including a housing with a combustion air chamber, a heat exchanger chamber, and a circulation blower chamber, wherein the combustion air chamber comprises a burner assembly and a combustion air fan, the furnace also includes a sound attenuation layer including a first acoustic metamaterial layer coupled to the combustion air chamber and tuned to attenuate sound for a first frequency band, one or more housing openings fluidly connecting the combustion air chamber to an environment outside the housing, wherein the sound attenuation layer includes a discontinuous section that aligns with one or more of the housing openings.

Abstract: A neonatal incubator with sound canceling features to minimize injury to the neonate. Internally developed sounds and external ambient noise are cancelled at the location of the infant's head.

Abstract: An electromagnetic vibrator has a movable magnet that can move linearly in an axial direction. A field coil surrounds the movable magnet. Magnetic bumpers are disposed on opposite ends of the vibrator, and are oriented to repel the movable magnet. When an alternating current is provided in the field coil, the movable magnet oscillates linearly in the axial direction, bumping against the magnetic field of the bumper magnets and thereby creating vibration. The movable magnet may have a toroidal shape and be disposed on an axial shaft to linearly constrain the motion of the movable magnet. Two field coils can be provided to simultaneously create push and pull forces on the movable magnet. The bumper magnets can be replaced with compression springs. The electromagnetic vibrator can be very small and energy efficient; it is well suited for use in portable electronic devices, cell phones, toys, industrial mixers, and massage devices.

Abstract: The fabrication of a heat exchanger assembly by disposing a metal fitting of an oil cooler subassembly into an opening in a first tank and disposing a tubular connector into a bore in the fitting. These components are mechanically held together prior to brazing by disposing an outer clinch cylinder to extend from the fitting though the opening and by disposing an inner clinch cylinder to extend from the fitting to above an annular rib on the tubular connector and placing V-shaped first stakes in the inner clinch cylinder for mechanical engagement with the rib and placing V-shaped second stakes in the outer clinch cylinder for mechanical engagement with the first tank.

Abstract: The fabrication of a heat exchanger assembly by disposing a metal fitting of an oil cooler subassembly into an opening in a first tank and disposing a tubular connector into a bore in the fitting. These components are mechanically held together prior to brazing by disposing an outer clinch cylinder to extend from the fitting though the opening and by disposing an inner clinch cylinder to extend from the fitting to above an annular rib on the tubular connector and placing V-shaped first stakes in the inner clinch cylinder for mechanical engagement with the rib and placing V-shaped second stakes in the outer clinch cylinder for mechanical engagement with the first tank.

Abstract: An implantable device, such as an implantable medical device (IMD) includes at least two radio frequency (RF) antennas and may additionally include an RF communication circuit. The RF antennas are spatially diverse, are disposed adjacent a housing, and are each configured to receive RF signals transmitted to the IMD from a remote RF signal source. The RF communication circuit, if included, is disposed within the housing and is configured to selectively receive the RF signals received by one or more of the spatially diverse RF antennas.

Abstract: Device data is generated at each medical device in a system including a plurality of medical devices. Priority information is dynamically assigned to the device data at each medical device based on the character of the device data. The device data and the priority information are transmitted from each medical device. Interfering communications of device data and priority information from multiple medical devices are processed successively based on the priority information.

Abstract: As disclosed within, the present device is directed to a multi-well sample module having integrated impedance measuring electrodes (which allow for the generation of an electric field within each well and the measuring of the change in impedance of each of the well's contents) and an electrical connection scheme allowing simultaneous measurement of each well's change in impedance.

Abstract: This invention incorporates the use of bioimpedance measurements of intact cells to classify and characterize any unique global cellular event such as signal transduction from ligand/receptor interactions, cytotoxicity, apoptosis, tumor cell progression, or stem cell differentiation. Specifically, we have demonstrated that this invention can classify signal transduction pathways from G-protein coupled, tyrosine kinase, and nuclear receptors.