Abstract: According to some embodiments, an apparatus comprises a multi-level power converter configured to convert an input voltage to an output voltage, wherein the multi-level power converter comprises one or more switching groups, wherein a switching group of the one or more switching groups comprises a pair of switches and a flying capacitor, and a controller configured to determine a duty reference for the switching group, determine a duty correction factor for the switching group based upon a flying capacitor voltage error of the flying capacitor, determine a sign correction signal based on a flying capacitor ripple voltage, and determine a duty command for activating the pair of switches based on the duty reference, the duty correction factor, and the sign correction signal.

Abstract: Systems, apparatus, and methods of rendering content based on a control point of a camera device are disclosed. In an example, a marker is attached to the camera device and its pose is tracked over time. Based on a camera model of the camera device, an offset between the marker and the control point is determined. The tracked pose of the marker can be translated and/or rotated according to the offset to estimate a pose of the control point. The rendering of the content is adjusted over time based on the estimated poses of the control point. Upon presentation of the content in a real-world space (e.g., on a display assembly located therein), the camera device can capture the content along with other objects of the real-world space and generate a video stream thereof.

Abstract: A riser sensor unit is used to sense engagement of a subsea riser tool with a riser coupling. The riser sensor unit includes a power supply configured to convert alternating current to direct current, an intrinsic safety barrier connected to the power supply, and a first sensor powered by the intrinsic safety barrier. The first sensor is attached to a sub of the subsea riser tool and is configured to generate a first signal upon detecting contact of a bottom surface of the sub with the riser coupling. The intrinsic safety barrier is configured to receive the first signal from the first sensor and transmit the first signal to a control system located remotely from the intrinsic safety barrier.

Abstract: According to some embodiments, an apparatus comprises a multi-level power converter configured to convert an input voltage to an output voltage, wherein the multi-level power converter comprises one or more switching groups, wherein a switching group of the one or more switching groups comprises a pair of switches and a flying capacitor, and a controller configured to determine a duty reference for the switching group, determine a duty correction factor for the switching group based upon a flying capacitor voltage error of the flying capacitor, determine a sign correction signal based on a flying capacitor ripple voltage, and determine a duty command for activating the pair of switches based on the duty reference, the duty correction factor, and the sign correction signal.

Abstract: A container includes an external receptacle including glass and has a bottom and a side wall to define an inner cavity. An internal receptacle includes glass, is housed within the inner cavity of the external receptacle, and has a bottom and a side wall. An intermediate element, including plastic or elastomeric material, is interposed between the internal receptacle and the external receptacle. The side wall of the internal receptacle includes a ring having a free upper face and a lower contact surface. The intermediate element is interposed between the lower contact surface of the ring and a support surface on a collar at the upper end of the side wall of the external receptacle. The collar has a step-like seat open upwards and toward the inner cavity of the external receptacle and extending between an upper free face of an upper edge of the collar and the support surface.

Abstract: A multi-level converter comprises one or more flying capacitors configured to operate at balanced voltages. The multi-level converter comprises a plurality of switching groups comprising pairs of switches operable to transfer energy to and from an inductor and the one or more flying capacitors for inverting an input voltage to an inverted output voltage. The multi-level converter comprises the inductor configured to operate according to an inductor frequency greater than a switching frequency used to control the plurality of switching groups.

Abstract: A system for enhanced power system model validation is provided. The system includes a computing device including at least one processor in communication with at least one memory device. The at least one processor is programmed to store a plurality of models for a plurality of devices and a plurality of input files associated with the plurality of models, receive, from a user, a selection of model of the plurality of models to simulate, retrieve one or more input files of the plurality of input files, perform a model validity check on the selected model, if the selected model passed the model validity check, perform a model calibration on the selected model, and if the selected model passed the model calibration, perform a post evaluation on the selected model.

Abstract: Methods and apparatus for detecting biological agents suspended in air in real time. A method includes emitting towards an air sample a beam of monochromatic polarized light whose wavelength corresponds to an absorption maximum of a biological molecule. The method further includes receiving, at different scattering angles, the scattered light beam after passing through the sample and determining that there are particles in the sample that contain the biological molecules of interest if the intensity of the scattered light has a substantially higher peak than the rest of the scattered light. The amount of the biological molecules is then estimated according to the amplitude of the peak. The size of the particles containing the biological molecules is also estimated as a function of the scattering angle where the peak was detected.

Abstract: The pyrido[2,3-d]pyrimidin-7(8H)-ones of Formula 1 and pharmaceutical compositions containing compounds of Formula 1 as CDK inhibitors are disclosed herein. Methods and use of a compound of Formula 1 in the treatment of cancer and manufacture are also disclosed.

Abstract: A fog injection nozzle able to generate a swirling cone of fog. The nozzle includes an internal cavity into which a pressurized liquid and a pressurized gas are introduced. The pressurized liquid is introduced into the cavity via a central axial duct of a cylindrical block and the pressurized gas is introduced into the cavity via a plurality of axial through holes disposed about the central axial duct. The axial through holes and radial arms are arranged such that a mixture of the liquid and gas inside the cavity is asymmetrically deflected by the radial arms to cause a swirling tangential component to appear in the conical flow of fog discharged from the nozzle.

Abstract: The present invention relates to tobacco products from plants comprising mutated berberine bridge enzyme-like nucleic acids and the recessive nic1 and/or nic2 alleles and methods of making the same.

Abstract: According to one configuration, a power system includes a resonant power converter, a monitor resource, and a controller. During operation, the resonant power converter converts an input voltage to an output voltage. The monitor resource monitors a magnitude of the input voltage. The controller dynamically controls a corresponding resonant frequency of the resonant power converter and a switching frequency of switches in the resonant power converter depending on a magnitude of the input voltage.

Abstract: One or more EMG sensors are configured to sense surface-EMG data indicative of muscle movement of the patient; and transmit surface-EMG data. A controller can identify at least one parameter of the surface-EMG data; compare the parameter to a corresponding dystonia-threshold-value; responsive to a determination that the parameter is greater than the corresponding dystonia-threshold-value: issue a visual-engagement command to a visual unit; and issue a tactile-engagement command to a tactile unit.

Abstract: A pre-packaged chip includes a chip having at least one electrical top contact at a top side of the chip and at least one electrical bottom contact at a bottom side, a first laminate layer on the top side, a second laminate layer on the bottom side, the first laminate layer and the second laminate layer being laminated together to sandwich the chip therebetween, a first metal layer on the first laminate layer and electrically contacted to the at least one electrical top contact via at least one top contact hole through the first laminate layer, and a second metal layer on the second laminate layer and electrically contacted to the at least one electrical bottom contact via at least one bottom contact hole through the second laminate layer. The pre-packaged chip is free from any contact hole extending from the first metal layer to the second metal layer.

Abstract: An autonomous solar collector cleaning device includes at least one main shaft, a first driver attached to a first end of the at least one main shaft, and a second driver attached to a second end of the at least one main shaft. The first and second drivers propel the cleaning device along a surface of the solar collector. A first sensor is attached to the first driver to detect an edge of the solar collector, and a second sensor is attached to the second driver to detect the edge of the solar collector. A control circuit maintains alignment of the cleaning device with respect to the solar collector based on outputs from the first and second sensors.

Abstract: Systems and methods for a riser coupling are disclosed. A riser sensor unit for sensing engagement of a riser tool with a riser coupling includes a first sensor attached to a sub of the riser tool. The first sensor is configured to generate a first signal upon detecting contact with the riser coupling, and an intrinsic safety barrier is configured to transmit the first signal to a control system.

Abstract: A photovoltaic (PV) module cleaning system can include a robotic cleaning device and a support system. The support system can be configured to provide a metered fill to the robotic cleaning device. In some embodiments, the robotic cleaning device and include a curved cleaning head. Various techniques for deploying a robotic cleaning device on PV modules include out-and-back, leapfrog, among others.

Abstract: A container for containing cosmetic products comprises an external glass receptacle (100), an internal glass receptacle (200), designed to be housed within the inner cavity (110) of said external receptacle (100) and in turn provided with its own inner cavity (210) for containing the product, and an intermediate element (300) made up of plastic material, destined to be interposed between respective mutual contact portions of the internal receptacle (200) and of the external receptacle (100). The side wall (212) of the internal receptacle (200) is provided, at its upper end, with a ring (213) having a free upper face (214) and a lower contact surface (215), and the intermediate element (300) is interposed between said lower contact surface (215) of the ring (213) of the internal receptacle (200) and a support surface on a collar (113) provided at the upper end of the side wall (112) of the external receptacle (100).

Abstract: According to one configuration, a power system includes a resonant power converter, a monitor resource, and a controller. During operation, the resonant power converter converts an input voltage to an output voltage. The monitor resource monitors a magnitude of the input voltage. The controller dynamically controls a corresponding resonant frequency of the resonant power converter and a switching frequency of switches in the resonant power converter depending on a magnitude of the input voltage.

Abstract: According to one configuration, a power system includes a resonant power converter, a monitor resource, and a controller. During operation, the resonant power converter converts an input voltage to an output voltage. The monitor resource monitors a magnitude of the input voltage. The controller dynamically controls a corresponding resonant frequency of the resonant power converter and a switching frequency of switches in the resonant power converter depending on a magnitude of the input voltage.