Abstract: A compact foldable and adjustable bed includes a base frame having front and rear support frames hinged to each other. The front support frame comprises a front support beam, a front connection beam, and two front crank-type side rails, each having horizontal and inclined portions. Front and rear drive assemblies are placed at the front and rear support frames and are operatively connected to an upper limb board and a lower limb board, respectively. The front and rear support frames fold about the hinge to transition between an expanded state and a storage state. The drive assemblies interleave in the storage state. The front support beam provides structural rigidity, the front connection beam provides folding clearance, and the front crank-type side rails increase overall frame thickness to internally accommodate pivotal travel of the flipping assemblies, enabling the bed to rest flat on a supporting surface without external support legs.

Abstract: A processing device in a memory sub-system identifies a first memory device of a plurality of memory devices that is part of a subset of the plurality of memory devices having lower endurance characteristics than a remainder of the plurality of memory devices, determines whether a program erase cycle count of the first memory device satisfies a threshold criterion, and responsive to determining that the program erase cycle count of the first memory device satisfies the threshold criterion, updates a trim setting for the first memory device, the trim setting specifying an updated program voltage associated with a first set of wordlines of the first memory device.

Abstract: The present disclosure discloses a scanned image acquisition method for a biological sample. The method includes: first, acquiring a sectional sample of a to-be-scanned biological sample; then, controlling a scanning transmission electron microscope to perform trans-scanning on the sectional sample based on a plurality of sets of focusing parameters, and collecting, during the trans-scanning and using a composite detector, a current signal set at a focusing surface generated under each set of focusing parameters; next, performing image processing on the current signal set at each focusing surface to obtain a plurality of signal images at each focusing surface; and finally, performing image filtering on the plurality of signal images at each focusing surface using an image filtering algorithm to obtain a plurality of layer scanned images, where a total quantity of the layer scanned images is different from a total quantity of the signal images.

Abstract: A light-emitting substrate and a method for manufacturing the same, and a display device are provided. In the light-emitting substrate, the first electrode includes a cover portion not exposed by the first via hole, the cover portion of the first electrode includes an upper surface away from the base substrate, a first included angle is between a surface where the first slope surface is located and the upper surface of the cover portion, a second included angle is between a surface where the second slope surface is located and the upper surface of the cover portion, and the second included angle is greater than the first included angle; and the first electrode and the second electrode of the electrical connection structure provide an electrical signal to the light-emitting device for driving the light-emitting device to emit light.

Abstract: Alloying elements in the aluminum alloy by mass percentage are: W (Mg): 4.0% to 7.0%; W (Mn): 0.5% to 0.8%; W (Er): 0.61% to 1.5%; W (Sc): 0.1% to 0.4%; W (Si)+W (Fe): 0.4% to 0.7%; and the remainder is Al, satisfying: 0.2%?W (Fe)?0.34 W (Er), and 2.6 W (Sc)+0.7 W (Er)?W (Zr)?2.1%. The preparation method of the aluminum alloy includes alloy powder preparation, additive manufacturing, and heat treatment. The alloy powder preparation includes raw material melting, atomization to make powder, powder sieving, and drying. The aluminum alloy exhibits high formability, a wide forming process window, and a high density of the formed components. After being subjected to heat treatment, the aluminum alloy possesses excellent mechanical properties at both room temperature and elevated temperatures.

Abstract: Disclosed are a memory management method and a storage device. The method includes: detecting an access event, wherein the access event reflects that a first physical unit among the plurality of physical units is accessed; determining, through a Cuckoo filter, whether a hit event corresponding to the first physical unit occurs according to the access event; if the hit event occurs, updating hit count information corresponding to the first physical unit; and if the hit count information meets a preset condition, migrating first identification information corresponding to the first physical unit from a first information queue to a second information queue.

Abstract: The present disclosure discloses a supported polymetallic oxide tandem catalyst, preparation method and application thereof, a surface of the support is supported with an oxide of metal A and then with metal vanadate nano-particles; and the oxide of metal A serves as a direct dehydrogenation catalytic site, and the metal vanadate nano-particles serve as a selective hydrogen combustion site. In the application of the tandem catalyst, dehydrogenation site and selective hydrogen combustion site are coupled at the nano-scale, and this coupling mechanism shifts the reaction equilibrium to the alkenes through the selective combustion of byproduct hydrogen, which effectively surpasses the thermodynamic limit; and meanwhile, the combustion of hydrogen releases chemical energy, and provides heat energy through direct heating, enabling the self-heating operation of the reaction.

Abstract: An insufficient content (IC) detection ensemble comprising a natural language model and a gradient boosting classifier detects IC in HyperText Transfer Protocol (HTTP) responses corresponding to Uniform Resource Locators (URLs). The architecture of the IC detection ensemble is such that the natural language model receives natural language tokens from body elements of HTML code in the HTTP responses as inputs, and the gradient boosting classifier receives count-based feature values and additional feature values extracted from the HTTP responses and outputs from the natural language model to generate IC/non-IC verdicts.

Abstract: The present disclosure relates to a device, a method and a medium in a spectrum sharing system. There is provided an electronic device comprising processing circuitry configured to: receive a spectrum request from a spectrum request system; send heartbeat interval information to the spectrum request system, the heartbeat interval information indicating a heartbeat interval at which the spectrum request system sends heartbeat requests, and the heartbeat interval information being shortest spectrum occupation time predicted based on spectrum usage data of the spectrum request system.

Abstract: Provided is a light-emitting assembly. The light-emitting assembly includes a plurality of light-emitting units, wherein each of the plurality of light-emitting units includes a first semiconductor layer, a light-emitting layer, and a second semiconductor layer that are laminated; a color-converting portion, disposed on a side, away from the light-emitting layer, of the first semiconductor layer; a common electrode layer, disposed between the first semiconductor layer and the color-converting portion, electrically connected to the first semiconductor layer, and connected to at least two of the plurality of light-emitting units; first electrodes, disposed on a side, away from the light-emitting layer, of the second semiconductor layer and electrically connected to the second semiconductor layer, the first electrodes being in one-to-one correspondence with the plurality of light-emitting units; and a first encapsulation layer, at least enclosing sidewalls of the plurality of light-emitting units.

Abstract: An atmosphere-land-reservoir-river integrated medium-to-long-term chained-process runoff forecasting method includes: determining control sections and controlling reservoirs according to hydrological and meteorological characteristics of a study area, and constructing and decomposing a rainfall, runoff generation, confluence, and routing integrated chained-process forecasting framework into four modules: meteorological rainfall, land surface runoff generation, river channel confluence, and runoff routing; selecting applicable calculation models for each module according to an intended time scale for calculation, performing calculations of rainfall, runoff generation, confluence, and routing respectively through a hybrid downscaling model, a land surface runoff generation calculation equation, a river channel confluence calculation method, and a runoff routing equation considering an impact of reservoir operation, and acquiring runoff processes of different control sections; and sequentially performing runoff

Abstract: A touch-control structure includes: a plurality of first touch-control electrodes, a plurality of second touch-control electrodes, a plurality of first lead wires and a plurality of second lead wires; the first touch-control electrodes are insulated from the second touch-control electrodes; at least a part of the first lead wires includes main body portions and narrowing portions connected to each other along an extension path of the first lead wires, and a cross section of at least a part of the narrowing portions is smaller than a cross section of the main body portions; and the lead-out region and the touch-control region are distributed along the second direction, the second lead wires are located between the touch-control region and the binding portion, and at least one of the first lead wires is intersected with and insulated from at least one of the second lead wires.

Abstract: A modular design method for an active phased array transmitting antenna for microwave wireless power transmission includes: obtaining an aperture-field amplitude distribution function for a transmitting antenna that maximizes beam collection efficiency under a constraint of a peak radiation level outside a receiving region; designing a physical size and an arrangement mode of subarrays, establishing a radiation model of the subarrays, and obtaining subarray excitation coefficients according to the physical size and the arrangement mode, and the aperture-field amplitude distribution function; categorizing the subarrays based on the subarray excitation coefficients, assigning each category of the subarrays as a module, and calculating module excitation coefficients; and optimizing the module excitation coefficients to maximize beam collection efficiency, and simultaneously suppressing the peak radiation level outside the receiving region radiated by the radiation model.

Abstract: The invention provides a moisture-proof acetyl L-carnitine or hydrochloride thereof and a preparation method thereof. Through the auxiliary material selection and preparation method treatment of raw materials of acetyl L-carnitine or hydrochloride thereof, the problems of strong moisture absorption and deliquescence when exposed to air are solved, and excellent moisture-proof and deliquescence-resistant effects are achieved, the stability of acetyl L-carnitine or hydrochloride thereof is improved, and high applicability is brought to users. In addition, the preparation process is simple, the production cost is low and it is environmentally friendly.

Abstract: A nucleic acid sequencing system may include a substrate coupled to a rotating disk. The substrate may include a plurality of nucleic acid samples. A detection system, including for example an objective and a camera, may detect sequencing events on the substrate while the substrate is rotated relative to the detection system around a rotational axis of the substrate, perpendicular to a surface of the substrate, by the actuation system.

Abstract: A power distribution device and a server system are provided. The power distribution device includes a housing, power distribution assemblies, power distribution connectors, and an AC power connection assembly. An inner cavity of the housing is provided with a plurality of first slots. The power distribution assemblies are provided in the first slots. First plugging structures of the power distribution assemblies cooperatively form a first plugging portion, and the first plugging portion is configured to be plugged and unplugged to the power supply. Second plugging structures of power distribution connectors cooperatively form a second plugging portion, and the second plugging portion is configured to be plugged and unplugged to a middle backplane of a server system. The AC power connection assembly is accommodated in the inner cavity and configured to be externally connected to a high-voltage AC power and electrically connected to the power supply.

Abstract: An example optical lens includes at least seven lenses that are arranged from an object side to an image side, where in a direction from the object side to the image side, a first lens has a positive optical power, an object side surface that is of the first lens and that is near an optical axis is a convex surface, an image side surface that is of the first lens and that is near the optical axis is a concave surface, and a last lens has a negative focal power; and a back focal length BFL of the optical lens satisfies: BFL?2.5 mm.

Abstract: An anti-breakage self-locking universal surgical clamp is provided, which includes a handle body, a hook, a first nickel titanium wire rope, a front handle, and a clamp head. An inner wall side of the handle body is fixedly provided with a first positioning screw, and an outer wall side of the handle body is movably provided with the front handle. An outer wall side of the handle body is movably provided with the clamp head, the inner wall side of the handle body is fixedly provided with the hook. An outer wall side of the first positioning screw is fixedly provided with a first tension spring, which is connected to the hook through a head tension hook. The present disclosure achieves opening and closing function of surgical clamp by the front handle, the first nickel titanium wire rope, and a return spring.

Abstract: Providing and using an activity logging service can include registering an activity logging service with a hash ledger storage service that can store a hash ledger that represents an activity log for an entity, and registering an observer device with the activity logging service. The observer device can provide event data to the activity logging service, and the event data can describe an event associated with the entity. The event data can be obtained from the observer device and a block that represents the event can be generated. A block can be added to the activity log, and a hash of a portion of the activity log can be generated and sent to the hash ledger storage service. The hash ledger storage service can be configured to append the hash of the portion of the activity log to the hash ledger that represents the activity log for the entity.