Abstract: Devices, methods, and non-transitory program storage devices are disclosed herein to: obtain, at a first electronic device, one more images captured by a first image capture device; crop a first portion of a first image of the one or more images, e.g., comprising a face of a human subject; apply a distortion correction operation to the cropped first portion; and then crop a second portion of the first image, wherein the second portion comprises a portion of a surface (e.g., a desktop or document) in the first image; apply a distortion correction operation to the cropped second portion; and transmit the distortion-corrected first and second portions to a second electronic device, e.g., after compositing the first and second portions into an output image to be transmitted. The first image capture device may be integrated into the first electronic device, or it may be connected in a wired or wireless fashion.

Abstract: Some examples relate to locally storing a chat conversation history at an on-premises data center. As one example, a system can receive a chat message from a first client device of a first participant in a chat conversation. In response to receiving the chat message, the system can determine a data center associated with the first participant. The system can then transmit the text chat message to a server node in the data center. The server node can be configured to transmit a command to a database system of the data center. The command can be configured to cause the database system to store a copy of the text chat message in a chat log associated with the chat conversation. The system can also transmit the text chat message to a second client device of a second participant in the chat conversation.

Abstract: An apparatus includes a strength member including a core formed of a composite material, and an encapsulation layer disposed around the core. A conductor layer is disposed around the strength member. A coating is disposed on the conductor layer. The coating is formulated to have a solar absorptivity of less than 0.5 at a wavelength of less than 2.5 microns, and a radiative emissivity of greater than 0.5 at a wavelength in a range of 2.5 microns to 15 microns, at an operating temperature in a range of 60 degrees Celsius to 250 degrees Celsius. The coating may have an erosion resistance that is at least 5% greater than an erosion resistance of aluminum or aluminum alloys.

Abstract: A device for connection detection is provided. The device includes: a power connecting end, in electrical connection with a power module; a load connecting end, in electrical connection with an external load; a switch circuit, electrically connected between the power connecting end and the load connecting end; a voltage control circuit, in electrical connection with the load connecting end and configured to output a voltage through the load connecting end; and a voltage detecting circuit, in electrical connection with the load connecting end and configured to measure voltage of the load connecting end and output a voltage detection signal, the voltage detection signal being configured to control an ON/OFF state of the switch circuit. A jump starter apparatus including the device for connection detection and a battery clip including the device for connection detection are further provided.

Abstract: Provided is a driving device for detecting mechanical characteristics and electrical characteristics of cells. A structure of the driving device includes a piezoelectric stack, a bridge-type flexible hinge mechanism, a parallel hinge mechanism, a lead screw guide rail, a stepping motor, a linear displacement sensor, a force sensor, a ceramic needle, a first electrode, a second electrode, a cell container, an XY axis displacement platform, a positioning hole, a first metal base, a second metal base, a first metal connecting plate, a second metal connecting plate, a first pre-tightening wedge, a second pre-tightening wedge, screws, and a pre-tightening screw. During the operation of the driving device, the piezoelectric stack is driven under an excitation effect of a driving electric field signal, such that the bridge-type flexible hinge mechanism stretches, and the ceramic needle is driven by the parallel flexible hinge mechanism to move downwards.

Abstract: A purified oligosaccharide compound having antithrombotic activity or a mixture of a homologous compound thereof and a pharmaceutically acceptable salt thereof, a preparation method for the mixture, a pharmaceutical composition containing the mixture, and uses thereof serving as an intrinsic factor X-enzyme (Xase) inhibitor in the preparation of drugs for preventing and/or treating thrombotic diseases.

Abstract: A self-propelled full-automatic dense-planting vegetable transplanter and control method thereof includes a seedling taking and throwing mechanism, a box moving device, a crawler-type walking chassis, a seedling guiding device, a soil covering mechanism, a planting mechanism, and a dispersing device. The box moving device is mounted on the crawler-type walking chassis. The dispersing device is located on one side of the box moving device. The seedling taking and throwing mechanism includes a seedling taking and throwing movement mechanism and a linear movement mechanism. The linear movement mechanism is arranged above the box moving device. The seedling taking and throwing movement mechanism is configured to reciprocate between the dispersing device and the box moving device through the linear movement mechanism. The dispersing device is connected to the seedling guiding device.

Abstract: A method of estimating local oscillator leakage (LOL) for a radio frequency (RF) signal transmitter. The method comprises generating a transmitter wideband baseband signal (s(t)) with a direct current (DC) voltage element of the transmitter wideband baseband signal (s(t)) removed or blocked and an average of the transmitter wideband baseband signal (s(t)) set to zero. The method includes processing said transmitter wideband baseband signal (s(t)) to form a RF signal; processing the RF signal to obtain a receiver baseband signal (y(t)); and determining a magnitude of an average of the receiver baseband signal (y(t)) as comprising a magnitude of the transmitter DC offset.

Abstract: An optical device includes an input waveguide and an output waveguide. The optical device includes an interference region that includes an input unit optically coupled with the input waveguide, that includes an output unit optically coupled with the output waveguide, and that has a larger waveguide width than a waveguide width of the input waveguide and a waveguide width of the output waveguide. Further, the optical device includes an unnecessary light waveguide that is included in the output unit in the interference region and that is arranged parallel to the output waveguide. The unnecessary light waveguide is a single-mode waveguide that includes a rib portion and a slab portion with a smaller thickness than a thickness of the rib portion, and that guides only a fundamental mode of light.

Abstract: A power supply device with dual power source planes and a server. The device includes: a plurality of controllers connected in parallel; a first Power Supply Unit (PSU) power source group and a second PSU power source group each includes two PSU power sources connected in parallel, and the first PSU power source group and the second PSU power source group are respectively located on two independent power source planes; and a power source backboard, wherein the power source backboard includes a first copper skin layer and a second copper skin layer, which are not connected with each other, the first PSU power source group is connected to the input end of each controller by means of the first copper skin layer, and the second PSU power source group is connected to the input end of each controller by means of the second copper skin layer.

Abstract: The present application discloses a ceiling-mount air disinfector, i.e., an air disinfection troffer, including: a housing; a first air outlet and a first air inlet respectively near two opposing ends of a side of the housing; a filter covering the first air inlet; a cross flow fan located near the first air outlet, and an air disinfection apparatus disposed in the housing including an ultraviolet disinfection mechanism and an air rectifying chamber, said air rectifying chamber including a plurality of air ducts configured in parallel. In operation, ultraviolet light and air flow are introduced into the air ducts, traveling toward each other along a long side of the air ducts so that maximized air-light interaction time is achieved for the best disinfection efficacy.

Abstract: The present application relates to the technical field of semiconductors, and in particular, to a wafer scheduling method and a wafer scheduling apparatus for an etching equipment. The wafer scheduling method includes: obtaining a wafer processing request, where the wafer processing request includes at least process information of wafers and an equipment processing parameter of the etching equipment; responding to the wafer processing request, and determining a wafer scheduling parameter corresponding to the process information and the equipment processing parameter, based on the process information, the equipment processing parameter, and a preset wafer scheduling policy, where the wafer scheduling parameter is used to determine a transfer time for transferring the wafers to the etching equipment for processing; and performing wafer scheduling processing on the wafers by using the wafer scheduling parameter. In this way, the wafer processing productivity of the etching equipment can be improved.

Abstract: The present invention discloses the preparation method of ?-phosphonyl-enamine derivative. The preparation method comprising the following steps: dissolving the enamine derivative, organic phosphine compound, manganese acetate and potassium carbonate in the solvent, reacting at room temperature to obtain the ?-phosphonyl-enamine derivative. The enamine derivative was as the starting material, and the raw materials are easy to obtain and a great many varieties. The various forms of the products obtained therein can be directly applied and can be used in further reactions. The reaction conditions are mild, the reaction speed is high, the reaction operation and the post-treatment process are simple, the production is convenient, and the method is suitable for large-scale production.

Abstract: An edge-casting process for sheet materials according to the present invention includes the following steps: S1. grooving, that is to choose a suitable sheet material, and leave a processing margin on the peripheral edge of the sheet, material, so as to make a first groove; S2. casting or covering, that is to cast a high solid content coating material into said first groove and solidify it; S3. making a second groove on the back of said first groove of the sheet material, and casting a high solid content coating material into said second groove and solidify it; and S4. milling and chamfering, that is to chamfer the sheet material according to a required processing margin, then perform an edge-casting process.

Abstract: Method and system for reducing a temperature differential across a flight vehicle. The system includes an exterior of the flight vehicle. The exterior of the flight vehicle includes a first exterior panel being at a first initial temperature and a second exterior panel being at a second initial temperature to define an initial temperature differential. A fluid loop, containing a working fluid, is coupled to the first exterior panel and the second exterior panel such that heat is transferred from the first exterior panel to the working fluid to decrease the first initial temperature of the first exterior panel to a first altered temperature, and to heat the working fluid. The heated working fluid is circulated from the first exterior panel and used to heat the second exterior panel to a second altered temperature greater than the second initial temperature.

Abstract: The invention concerns a method for the preparation of a coated building board comprising an ink receiving layer, the method comprising at least i) application of an aqueous coating composition comprising a) 5 to 40% by weight of the coating composition of an acrylic polymer, b) 1 to 6% by weight of the coating composition of a molecular sieve, and c) 1 to 30% by weight of the coating composition of a pigment, on at least a part of the surface of the building board, and ii) curing the coating composition. The invention also concerns the aqueous composition for preparing the ink receiving layer comprising the acrylic polymer, the molecular sieve and the pigment, and its use.

Abstract: A method for preparing a novel crystal form F of trelagliptin includes: adding a mediating protein into the trelagliptin to obtain a mixture, and introducing a mechanochemical action on the mixture for transformation of a crystal form of the trelagliptin to obtain the novel crystal form F of trelagliptin. The preparation method does not require any organic solvent and thus will not lead to an organic solvent residue to affect the safety of medication. In addition, the preparation method is less time-consuming than a solvent crystallization method, is easy to allow green industrial production, and has characteristics such as simplicity, high efficiency, safety, and environmental friendliness.