Abstract: A driver circuit may include a source, a first circuit path, and a second circuit path. The a first circuit path may be connected to the source and include a first anode pad, a first set of connecting elements to connect the first anode pad to an anode of an optical load, a second anode pad that is separate from the first anode pad, a second set of connecting elements to connect the anode of the optical load to the second anode pad, and a switch. The switch being in a closed state causes current to charge the first set of connecting elements and the second set of connecting elements through the first circuit path. The switch transitioning from the closed state to the open state causes the first set of connecting elements to discharge current through the second circuit path to provide an electrical pulse to the optical load.

Abstract: A welfare-oriented raising house for meat-type ducks, including a raising house, is provided. The raising house is internally provided with a support frame which is of a U-shaped structure and arranged in a length direction of the raising house, a raising net arranged at a top of the support frame, a cleaning and storing mechanism arranged at one end of the support frame for cleaning and storing the raising net, a traction mechanism arranged at the other end of the support frame for the traction of the raising net, blocking mechanisms which are of a zigzag structure and arranged at both sides of the support frame, and tensioning vibration mechanisms arranged at bottoms of the blocking mechanisms and fixedly connected to a side edge of the support frame.

Abstract: In some implementations, an electrical drive circuit may generate a rectangular optical pulse using cathode pre-charge and cathode-pull compensation. The electrical drive circuit may include an anode and a cathode to connect an optical load, a switch, a first source connected between the anode and a ground, a rectifier connected between the cathode and the switch, a capacitor connected in parallel with the rectifier, a second source connected to the ground, and an inductor connected between the switch and the second source. In some implementations, when the switch is closed and the optical load is connected, a first current is provided to the optical load through the first source, the rectifier, and the switch, and a second current is provided to the optical load through the first source, the capacitor, and the switch, where a rise time of the first current complements a fall time of the second current.

Abstract: A shutdown circuit may include a filter, for receiving a laser trigger signal for a laser emitter, that is configured to output a filtered signal. The shutdown circuit may include a logic gate configured to receive the filtered signal and at least one of a first signal based on a signal from a photodiode or a second signal based on a signal from a conductive path. The shutdown circuit may include a flip-flop configured to receive an output of the logic gate and to output an enablement signal that is based on the output of the logic gate, and a driver circuit for a switch configured to control current flow to the laser emitter. The driver circuit may be configured to receive the enablement signal and the laser trigger signal and to output the laser trigger signal based on whether the enablement signal is a first or a second voltage.

Abstract: In some implementations, a light detection and ranging (LIDAR) system includes a vertical cavity surface emitting laser (VCSEL) array including a plurality of VCSELs. The VCSEL array may have a first aspect ratio. The LIDAR system may include a set of transmission optics configured to receive light from the VCSEL array and to illuminate a field of view having a second aspect ratio that is greater than the first aspect ratio. The LIDAR system may include an image sensor array configured for line readout. The image sensor array may have a third aspect ratio that is different from the first aspect ratio. The LIDAR system may include a set of reception optics configured to image light reflected from objects in the field of view, having the second aspect ratio, onto the image sensor array having the third aspect ratio.

Abstract: An electrical drive circuit may charge one or more inductive elements, where the electrical drive circuit includes the one or more inductive elements and a capacitive element in series between the one or more inductive elements and the optical load, and where the electrical drive circuit is connected to one or more sources. The electrical drive circuit may generate, after the charging and for a first time interval, a main electrical pulse. The electrical drive circuit may discharge, after the charging and for a second time interval, the one or more inductive elements to provide a compensation electrical pulse, where at least a portion of the second time interval overlaps with the first time interval. The electrical drive circuit may combine the main electrical pulse and the compensation electrical pulse into a combined electrical pulse. The electrical drive circuit may provide the combined electrical pulse to the optical load.

Abstract: A hierarchical control method for an island power grid energy storage system for increasing new energy generation fluctuation is disclosed. The method includes implementing a rolling dispatch method based on an idea of model predictive control; comprehensively considering a response capability of the energy storage system to grid-wide economic dispatch instructions and life loss of energy storage lithium batteries, and constructing an objective function of an intraday control model of the energy storage system with economic optimization; and constructing, on a basis of satisfying the objective function of the intraday control model, a real-time control model of the energy storage system and solving the model, and determining charge and discharge plans of a lithium battery energy storage system and a supercapacitor energy storage system.

Abstract: An optical package may include a fan-out-wafer-level-packaging (FOWLP) sub-package including a redistribution layer (RDL) on a molded component including an electrical chip. The optical package may include an optical chip over the FOWLP sub-package. The optical chip may be electrically connected to the RDL. An area of a surface of the RDL may be larger than an area of a surface of the optical chip. The optical package may include a package housing over the optical chip such that light to be received or transmitted by the optical chip may is to pass through the package housing.

Abstract: In some implementations, a substrate comprises a ceramic core, multiple metal-filled vias through the ceramic core, and a first metal layer, on a top side of the ceramic core, including metal traces, over respective metal-filled vias. The substrate comprises a second metal layer, including a first electrical contact over a first metal trace, a second electrical contact over a second metal trace, and a third electrical contact over a third metal trace, where the second metal trace is electrically isolated from the first and third metal traces. The substrate comprises a thin dielectric layer separating the first metal layer and the second metal layer. The dielectric layer between the first metal layer and the second layer provides the substrate with a low parasitic inductance and a low thermal resistance based on a thickness of the dielectric layer and/or a material used for the dielectric layer.

Abstract: In some implementations, an emitter module may include an emitter layer including a first emitter array configured to produce a first beam that provides flood illumination, and a second emitter array configured to produce a second beam that provides spot illumination. The emitter module may include a first optics layer, positioned in front of the emitter layer, that includes a first collimating lens positioned in front of the first emitter array, and a second collimating lens positioned in front of the second emitter array. The emitter module may include a second optics layer, positioned in front of the first optics layer, that includes an optical diffuser positioned in front of the first collimating lens, and a beamsplitter grating positioned in front of the second collimating lens.

Abstract: In some implementations, an electrical drive circuit may generate a rectangular optical pulse using cathode pre-charge and cathode-pull compensation. The electrical drive circuit may include an anode and a cathode to connect an optical load, a switch, a first source connected between the anode and a ground, a rectifier connected between the cathode and the switch, a capacitor connected in parallel with the rectifier, a second source connected to the ground, and an inductor connected between the switch and the second source. In some implementations, when the switch is closed and the optical load is connected, a first current is provided to the optical load through the first source, the rectifier, and the switch, and a second current is provided to the optical load through the first source, the capacitor, and the switch, where a rise time of the first current complements a fall time of the second current.

Abstract: An electrosurgical hook electrode includes an intermediate portion (36), a hook portion (38) connected to the intermediate portion (36) at a bend angle, and a coating (40) disposed over the intermediate portion (36) and the hook portion (38), the coating (40) having a varying thickness.

Abstract: In some implementations, a controller may cause a first switch of a driver circuit to transition from an open state to a closed state to charge an inductive element of the driver circuit. The controller may cause the first switch to transition from the closed state to the open state to discharge the inductive element. The controller may cause a second switch of the driver circuit to transition from an open state to a closed state to select a capacitive element to be charged by discharging the inductive element. The controller may cause a third switch of the driver circuit to transition from an open state to a closed state to discharge the selected capacitive element to provide an electrical pulse to an optical emitter, of an array of optical emitters of the driver circuit, that is connected to the selected capacitive element.

Abstract: A shutdown circuit may include a filter, for receiving a laser trigger signal for a laser emitter, that is configured to output a filtered signal. The shutdown circuit may include a logic gate configured to receive the filtered signal and at least one of a first signal based on a signal from a photodiode or a second signal based on a signal from a conductive path. The shutdown circuit may include a flip-flop configured to receive an output of the logic gate and to output an enablement signal that is based on the output of the logic gate, and a driver circuit for a switch configured to control current flow to the laser emitter. The driver circuit may be configured to receive the enablement signal and the laser trigger signal and to output the laser trigger signal based on whether the enablement signal is a first or a second voltage.

Abstract: An optical device may include emitter array to emit light. The optical device may include a collimating element to create an image of the light emitted by the emitter array. The optical device may include a diffractive optical element (DOE) to generate a pattern from the image of the light. The optical device may include a distortion correction element to reduce distortion in the pattern on a screen or to shape the pattern on the screen.

Abstract: Techniques for a machine learning model including the steps of summing values of a set of non-binary input feature values with bias values of a first set of bias values to generate first summed values; binarizing the first summed values; receiving a set of binary weights; performing a convolution operation on the binarized summed values and the set of binary weights to generate convolved output feature values; summing feature values of the convolved output feature values with bias values of a second set of bias values and applying a scale value of a first set of scale values to generate a first set of normalized feature values; summing the first set of normalized feature values with the non-binary input feature values to generate second summed values; and outputting a set of output feature values based on the second summed normalized feature values and non-binary input feature values.

Abstract: In some implementations, an optical device includes a two-zone vertical cavity surface emitting laser (VCSEL) with a set of emission zones configured to emit structured light forming a set of dots; a single-element collimating lens aligned to the two-zone VCSEL; and a tiling diffractive optical element (DOE) aligned to the single-element collimating lens, wherein the tiling DOE comprises a set of tile segments aligned to the set of emission zones, and wherein a tile segment, of the set of tile segments, is configured to project, from the set of emission zones toward portions of a target, the structured light forming the set of dots.

Abstract: An electrosurgical electrode (30) includes a conductive rod (32) having a working portion (38) at a distal end portion (35). The electrode (30) also includes a composite coating (40) disposed on the working portion (38). The composite coating (40) includes a first coating (42) disposed on an outer surface of the working portion (38) and a second coating (44) disposed over the first coating (42).

Abstract: A frequency conversion power transmission system includes: a new energy power generation base, a first isolation device, a second isolation device, an alternating current-alternating current (AC-AC) frequency conversion device and a power transmission cable; the new energy power generation base is configured to supply electrical energy to an AC power grid, and operate at a constant voltage and a constant or variable frequency according to environmental conditions including weather, an environment or a distance; the first isolation device is connected to the new energy power generation base; the second isolation device is connected to the AC power grid; an input terminal of the AC-AC frequency conversion device is connected to the first isolation device, an output terminal of the AC-AC frequency conversion device is connected to the second isolation device, and the power transmission cable is configured to connect the new energy power generation base and the first isolation device.

Abstract: An embodiment of the disclosure provides a comment content display method, apparatus and device, and storage medium, the method including: when any parent comment of a content object includes at least one child comment, display a comment hiding button at a preset position in a comment region of the parent comment; and filter out the parent comment and child comments of the parent comment from all the comments that have been currently loaded and displayed in response to a trigger operation of a user for the comment hiding button, and updating a current display interface to display other comment contents except the filtered out parent comment and child comments of the parent comment.