Abstract: In some embodiments, a computer system comprises processors, a request manager coupled to the processors and configured to receive practice test requests, a practice test manager configured to retrieve practice test data, a real time session manager configured to establish a real time session with a user computer, an AI-based analyzer configured to execute a machine learning model to determine accuracy of results received from the user computer, a non-transitory computer-readable storage medium storing sequences of instructions for: receiving, using the request manager, a request for performing a practice test; retrieving, using the practice test manager, data for the practice test; using the real time session manager: establishing a real time session with the user computer to enable the user computer to access the data and execute the practice test; and as the practice test is executed, collecting test results and transmitting them to user devices.

Abstract: Systems and methods for spectrometry are disclosed. In some embodiments, the system comprises a Fourier Transform Spectrometer (FTS) comprising a waveguide and a delay element. In some embodiments, the method comprises determining a power spectral density of an input optical signal via the FTS.

Abstract: There is provided a glucose sensor system comprising: a transmitter (2) for containing a battery (212), the transmitter being for placement on top of patient skin; a transcutaneous connector (3) comprising at least one conductive path; and an implantable monolithic integrated circuit (I) for placement beneath the patient skin, wherein the implantable monolithic integrated circuit comprises a potentiostat and an electrochemical sensing element; wherein the potentiostat is electrically coupled to the transmitter (2) via the transcutaneous connector (3), and the electrochemical sensing element is configured to sense glucose concentration and generate an electrical signal representative of the glucose concentration, and wherein the potentiostat is electrically connected to the electrochemical sensing element.

Abstract: Disclose is a system and method for real-time measurement and feedback of metrology and metallurgical data during additive manufacturing (AM) part fabrication. This solution promises to provide higher performance, lower cost AM parts. A sensor is placed either in the rake/roller or following the rake/roller so that it has no impact on the process efficiency and can be used to provide real-time feedback and an archived digital map of the entire part volume. The solution provides non-contact sensing of AM layer's electrical conductivity in a high-temperature environment, metallurgical property verification, porosity imaging, local defect detection and sizing, local material temperature monitoring, and grain anisotropy imaging. Part geometry, the AM powder, and the laser/material interface are monitored in real-time. Dual mode sensing using magnetoquasistatic and optical sensors enhance results. Real-time nonlinear control of the AM fabrication process is performed based on the sensor data.

Abstract: An approach for controlling ultraviolet intensity over a surface of a light sensitive object is described. Aspects involve using ultraviolet radiation with a wavelength range that includes ultraviolet-A and ultraviolet-B radiation to irradiate the surface. Light sensors measure light intensity at the surface, wherein each sensor measures light intensity in a wavelength range that corresponds to a wavelength range emitted from at least one of the sources. A controller controls the light intensity over the surface by adjusting the power of the sources as a function of the light intensity measurements. The controller uses the light intensity measurements to determine whether each source is illuminating the surface with an intensity that is within an acceptable variation with a predetermined intensity value targeted for the surface. The controller adjusts the power of the sources as a function of the variation to ensure an optimal distribution of light intensity over the surface.

Abstract: A windowing device includes: a windowing module including a dimming transparent substrate and a semiconductor temperature adjustment element, the dimming transparent substrate being provided with different light transmittances when the dimming transparent substrate has different adjustment parameters; a temperature adjustment circuitry configured to input a current to the semiconductor temperature adjustment element and adjust a temperature of the semiconductor temperature adjustment element; a temperature sensor configured to detect a temperature of an environment where the windowing module is located; and a controller configured to input a circuitry adjustment signal to the temperature adjustment circuitry when the temperature detected by the temperature sensor is beyond a predetermined temperature range, as to adjust a temperature of the dimming transparent substrate to be within the predetermined temperature range.

Abstract: An apparatus (100) for compensating for weather-independent Doppler expansions in radar signals of a weather radar system (200) is disclosed. The device comprises: a receiving device (110) for receiving a representation (50) of the radar signals, a calculation device (120) and a compensation device (130). The representation includes pixels of a range Doppler matrix. The calculation device (120) is designed to calculate azimuth angles (Azi) for the pixels (75) by means of fine bearing. The compensation device (130) is designed to correct weather-independent Doppler shifts for the pixels (75) based on the calculated azimuth angle (Azi; AziMopu) and thus to compensate for the weather-independent Doppler expansions and to provide them as a compensated representation (150).

Abstract: The present disclosure relates to a processing arrangement for converting digital image data. Conventional approaches suffer from speed or non-ideal compressing schemes. These drawbacks are overcome by the processing arrangement for determining a digital output value from a digital input value based on a linear function and a square root function. The processing arrangement includes a first calculation block configured to determine a first output value of the linear function, a second calculation block configured to determine a second output value of the square root function. A selector is configured to select, based on a comparison between the digital input value and a threshold value, whether the digital output value is determined by the first calculation block or by the second calculation block.

Abstract: A method for use in manufacturing an optical emitter arrangement comprises holding an electrically conductive base member and two electrically conductive base elements in a predetermined spatial relationship, and providing two electrically conductive projections, wherein each projection extends in a direction away from a surface of a corresponding one of the base elements and wherein each projection terminates at a corresponding outer end. The method further comprises bringing a projecting portion of a surface profile of a mold tool into engagement with an area of a surface of the base member whilst bringing other portions of the surface profile of the mold tool into engagement with the outer ends of the projections so as to form a void that extends away from the surface of the base member around the projecting portion of the surface profile of the mold tool and that extends away from the surface of each of the base elements around each projection without extending over the outer end of each projection.

Abstract: A TPMS sensor with an externally replaceable battery is disclosed. The valve stem facilitates battery replacement with a valve stem core designed to removably secure a battery within the valve stem and a sensor configured with an electrical connection designed to connect the sensor to power from the battery. The valve stem has an interior cavity configured to retain the valve stem core. The battery may be at least partially retained within the valve stem. The sensor may be configured in a sensor body connected to an end of the valve stem distal from the valve stem core. The electrical connection may comprise a spring-loaded terminal configured to connect or disconnect the sensor and battery as the battery is inserted or removed from the valve stem through a valve stem end proximal to the valve stem core, permitting battery replacement without removing or deflating a tire configured with the sensor.

Abstract: A privacy film for a curved display screen. The privacy film has a curved cross section when no force is applied. The privacy film comprises alternating transparent layers and opaque layers, each extending across the privacy film, and each parallel to the other transparent and opaque layers when no force is applied. A method of manufacturing the film is also disclosed.

Abstract: A photosensitive element includes a semiconductor substrate, a light sensitive region formed in the semiconductor substrate, an inactive region at least partly surrounding the light sensitive region, and a protective layer having an opening leaving the light sensitive region uncovered by the protective layer. The protective layer is an anti-reflective coating having in at least a part of a spectral range between 300 nm and 1200 nm a reflectivity of less than 10% and a transmittance of less than 0.1%.

Abstract: A patterning method of a film is disclosed. The method including: providing a film including a first surface; forming n etching barrier layers on the first surface of the film, and n is an integer larger than or equal to 2; and performing n etching processes on the film to form a recessed structure on the first surface using the n etching barrier layers as masks, the recessed structure includes n bottom surfaces respectively having different depths. Two adjacent etching processes of the n etching processes include a previous etching process and a subsequent etching process, and after the previous etching process is completed, a part of the n etching barrier layers is removed to form a mask for the subsequent etching process; a material of the part of the n etching barrier layers which is removed is different from a material of the mask of the subsequent etching process.

Abstract: A system for sensing torque of an object includes a flange having a first length along a main axis of a main surface of the flange and a torque sensor device formed over the main surface of the flange. The torque sensor device includes a sensing portion and a plurality of measurement transducers formed over the sensing portion. The torque sensor device has a second length parallel to the main surface of the flange and a third length parallel to the main surface of the flange. The second length and the third length are each smaller than half of the first length.

Abstract: A measuring arrangement for detecting deformations, in particular bending of the outer surface, of a wind turbine structural element, includes: at least two measurement sites on the structural element spaced apart from one another toward a structural element extension, each having at least one acceleration sensor, that can be communication-connected—preferably via a wireless interface—to an evaluation device. The measuring arrangement—has at least two speed sensors, in particular angular speed sensors, on the structural element and spaced apart from one another toward a structural element extension, preferably the longitudinal extension, and/or the measuring arrangement has at least two position sensors, in particular magnetic field sensors, on the structural element and spaced apart from one another toward a structural element extension, preferably the longitudinal extension.

Abstract: An arrangement for an optoelectronic component includes a substrate and an optical semiconductor chip arranged on the substrate. The optical semiconductor chip has an optically active region, a first optically non-active region, and a second optically non-active region. A connection structure connects a chip-side electrical connection to the optically active region. An electrical connection connects the chip-side electrical connection to a second substrate-side electrical connection. A coating is provided in a layer stack in the optically active region, in the first optically non-active region, and in the second optically non-active region. The layer stack includes a first layer and a second layer arranged above the first layer. The chip-side electrical connection and the connection structure in the first optically non-active region and the protective layer in the second optically non-active region are each arranged between the first layer and the second layer.

Abstract: A variable angle transducer interface block apparatus and related systems and methods are disclosed. The variable angle transducer interface block apparatus has an interface block having a mounting receiver. The interface block is positioned proximate to a material wall. A curved mounting structure is movably connected to the mounting receiver. A transducer is mounted on the curved mounting structure, wherein an angle of an acoustic signal transmitted by the transducer into the material wall is adjustable by movement of the curved mounting structure relative to the mounting receiver.

Abstract: A plurality of flow rate values associated with pressurized air directed to an airway of a user of a respiratory therapy system is received. A plurality of pressure values associated with the pressurized air directed to the airway of the user is received. A first time associated with a first breath of the user and a second time associated with a second breath of the user are identified. The plurality of flow rate values is filtered based at least in part on the identified first time and the identified second time. The filtering produces a subset of the plurality of flow rate values. An intentional leak characteristic curve for the respiratory therapy system is determined using at least two of the subset of the plurality of flow rate values and the corresponding pressure values for the at least two of the subset of the plurality of flow rate values.

Abstract: There is provided a circuit (502; 503; 504) configured for operation with a multi-bin photon-counting x-ray detector (20) having multiple energy thresholds, wherein said circuit (502; 503; 504) is configured to obtain or generate several Total Time-Over-Threshold (TTOT) signals corresponding to several different energy thresholds, and provide energy integrating information based on said several TTOT signals.

Abstract: A processing system includes methods to promote sleep. The system may include a monitor such as a non-contact motion sensor from which sleep information may be determined. User sleep information, such as sleep stages, hypnograms, sleep scores, mind recharge scores and body scores, may be recorded, evaluated and/or displayed for a user. The system may further monitor ambient and/or environmental conditions corresponding to sleep sessions. Sleep advice may be generated based on the sleep information, user queries and/or environmental conditions from one or more sleep sessions. Communicated sleep advice may include content to promote good sleep habits and/or detect risky sleep conditions. In some versions of the system, any one or more of a bedside unit 3000 sensor module, a smart processing device, such as a smart phone or smart device 3002, and network servers may be implemented to perform the methodologies of the system.