Abstract: Some embodiments of the disclosure provide a decellularized heart valve (DHV) composite, a preparation method of the DHV composite, and a use of the DHV composite. In some examples, the preparation method of the DHV composite includes the following steps: S1, conducting a reaction I on a DHV with a copper chloride-dopamine hydrochloride mixed solution to obtain a copper ion-modified DHV; and S2, conducting a reaction II on the copper ion-modified DHV with a GDF11 solution to obtain the DHV composite. In other examples, the present disclosure provides a use of the DHV composite in preparation of a tissue-engineered heart valve (TEHV). In further examples, the TEHV is a heart valve (HV) with remodeling and regeneration capabilities.

Abstract: According to a transformer-architecture-based method and system for IoT for and smart control of urban integrated energy, urban integrated energy IoT information acquired by a terminal from different areas is output to a server after being standardized into a sequence signal, where energy demand prediction is performed through learning of a deep learning network configured on the server, a smart control network is configured and built by using the deep learning network, real-time prediction processing is performed on the urban integrated energy IoT information acquired in real time, and a result is uploaded to a workstation for reviewing. Based on the transformer architecture, the deep learning network is combined with a fast Fourier transform algorithm and inverse transform on a sequence, and an FFT-Attention mechanism is proposed. Compared with a conventional transformer architecture, frequency domain information of a sequence is given more emphasis.

Abstract: A battery pack, comprising a first cell and a second cell connected in series, the first cell having a current cut-off device and having a first failure voltage, the current cut-off device being configured to be able to break a circuit in response to a voltage value of the first cell reaching or exceeding the first failure voltage, and the second cell having no current cut-off device. The battery pack may use a soft pack battery as the second cell, having advantages such as high energy density, low impedance, high discharge power, a low rate of temperature rise during high-rate discharge, and flexibility in dimensions.

Abstract: During operation, an electronic device may receive, associated with a computer, a packet or a frame that includes a dynamic power reset pattern, where the dynamic power reset pattern specifies temporal pattern of power resets. Then, the electronic device may detect multiple power resets, where a given detected power reset in the detected power resets involves activation of a power reset button in the electronic device. Moreover, the electronic device may compute a detected power reset pattern, where the detected power reset pattern includes a detected temporal pattern of detected power resets. Next, the electronic device may compare the dynamic power reset pattern and the detected power reset pattern. Furthermore, based at least in part on a result of the comparison, the electronic device may at least selectively provide, to the computer, the result of the comparison.

Abstract: A chamber arrangement includes a chamber body, a substrate support, and a laser source. The substrate support is arranged within the chamber body and supported for rotation about a rotation axis relative to the chamber body. The laser source is arranged outside of the chamber body and optically coupled to the substrate support along a lasing axis. The lasing axis intersects the substrate support at a location radially outward from an outer periphery of a substrate seated on the substrate support. A semiconductor processing system and a material layer deposition method are also described.

Abstract: The present disclosure relates to the technical field of medical instrument and provides a passage establishment device for posterior spinal fusion minimally invasive surgery. The device includes: a tube, an interior of the tube includes a through hole penetrating through both axial ends of the tube, and a wall of the tube includes an opening portion. The tube of the passage establishment device of the present disclosure can be inserted between the vertebral bodies and can also be removed from between the vertebral bodies. The through hole of the tube forms a surgical passage for the fusion device to penetrate, which can safely protect human tissues and is convenient for doctors to perform follow-up operations. The tube can be installed quickly, and thus the operation time is shortened. It is easy to disassemble, clean, and disinfect the tube.

Abstract: An automatic cleaning device, comprising: a moving platform configured to automatically move on an operation surface; a cleaning module which is provided on the moving platform and comprises a wet-type cleaning module configured to clean at least a part of the operation surface in a wet-type cleaning mode and a dry-type cleaning module configured to clean at least a part of the operation surface in a dry-type cleaning mode; and a floating lifting/lowering structure connected to the dry-type cleaning module and configured to enable the dry-type cleaning module to passively move up and down relative to the moving platform.

Abstract: Disclosed is a multi-functional visual electric toothbrush, including a main unit, an oral viewer, an interdental cleaning appliance and an electric toothbrush head. The oral viewer is connected to the main unit, the interdental cleaning appliance is connected to the front end of the oral viewer, and the electric toothbrush head is connected to a toothbrush driving mechanism. A circuit system and a control system of the main unit can not only transfer the energy of a power supply to the toothbrush driving mechanism, so as to drive the electric toothbrush head to work for large-area oral cleaning, but also connect a lighting system, an observation system and a switch of the oral viewer to control the oral viewer to work. The interdental cleaning appliance may be used cooperatively with the oral viewer to perform targeted cleaning on difficult-to-clean food debris in an oral cavity.

Abstract: Methods, systems, and assemblies suitable for gas-phase processes are disclosed. An exemplary assembly includes a susceptor ring and at least one injector tube. The injector tube can be disposed within the susceptor ring to provide a gas to a peripheral region of a substrate. Methods, systems, and assemblies can be used to obtain desired (e.g. composition and/or thickness) profiles of material on a substrate surface.

Abstract: Disclosed are an agarase mutant with improved thermal stability and application thereof, belonging to the fields of genetic engineering technology and enzyme engineering. The present disclosure provides an agarase mutant, which is obtained by mutating the amino acid at the 86th site, the 373rd site, the 374th site, the 496th site, the 507th site, or the 747th site of agarase with an amino acid sequence as shown in SEQ ID NO.1. The agarase mutant provided by the present disclosure improves the thermal stability and the hydrolytic activity of the agarase. Compared with the wild type enzyme, the mutant enzyme shows excellent heat resistance and can be industrially used at a relatively high temperature, so that the utilization rate of agar raw materials and the yield of oligosaccharides from agar are improved, and the mutant enzyme has a good industrial application prospect.

Abstract: The invention provides engineered mitochondria and a preparation method thereof, and relates to the technical field of mitochondria. The engineered mitochondria are formed by attaching exogenous cell membranes to outer membranes of exogenous mitochondria. The preparation method comprises the following steps: S1: extracting exogenous cell membranes from cells; S2: separating and extracting exogenous mitochondria from cells or tissue; and S3: mixing the separated and extracted exogenous mitochondria with the exogenous cell membranes in a specific ratio, thereby attaching the exogenous cell membranes to the outer membranes of the exogenous mitochondria to obtain the engineered mitochondria. The invention enables the production of engineered mitochondria with enhanced biological activity, exhibiting improved therapeutic effects on mitochondrial dysfunction-related disorders.

Abstract: A text recognition method and apparatus disclosed. The text recognition method includes: obtaining a to-be-detected image; determining a target text detection area in the to-be-detected image, where the target text detection area includes target text in the to-be-detected image, and the target text detection area is a polygonal area including m vertex pairs, m being a positive integer greater than 2; correcting the polygonal area to m?1 rectangular areas to obtain a corrected target text detection area; and performing text recognition on the corrected target text detection area to determine the target text, and outputting the target text.

Abstract: A worm gear-worm retractor for an implanted tongue retraction device is provided. The retractor of the present invention includes a control switch capable of adjusting a retraction force of a pull line, a pull line fixing device capable of fixing the pull line, and a casing. The control switch and the pull line fixing device are mounted in the casing, and the control switch is a worm gear-worm structure formed by a worm and a worm gear. Because the control switch adopts the worm gear-worm structure, by rotating the worm, the worm gear can be driven, so that the pull line fixing device connected to the worm gear rotates, thereby tensioning or loosening the pull line to adjust the retraction force of the pull line fixing device. The retractor has advantages of a compact structure, a small size and convenient adjustment.

Abstract: The present disclosure discloses a simple preparation method of green acid-modified cyclodextrin, belonging to the field of cyclodextrin modification. Cyclodextrin and succinic acid are mutually modified by an esterification reaction in the presence of catalyst, and acid-modified cyclodextrin with different modification degrees is obtained by controlling reaction time at a high temperature or under a microwave action. The prepared modified cyclodextrin does not involve the use of toxic and harmful reagents, the modification reaction is simple, green and controllable, and the loading capacity of the modified cyclodextrin to guest molecules is remarkably improved compared with the loading capacity of the original cyclodextrin, so that the modified cyclodextrin has great application potential in the health fields such as food, medicines, and cosmetics.

Abstract: An integrated circuit structure includes a substrate, a conductive layer, a plurality of memory devices, a bonding pad, and a source line. The conductive layer is over the substrate. The memory devices are stacked in a vertical direction over the conductive layer. The bonding pad is over the conductive layer. The source line extends upwardly from the bonding pad and has a lower portion inlaid in the bonding pad and an upper portion having a sidewall coterminous with a sidewall of the bonding pad. A top end of the source line has a first lateral dimension greater than a second lateral dimension of the bonding pad.

Abstract: A wireless power system has a wireless power transmitting device and a wireless power receiving device. The wireless power transmitting device may include ASK decoding circuitry. An inverter controller may supply control signals to an inverter based on a clock signal. To improve wireless transmission at various frequencies of interest, the clock signal used by the inverter controller may be dithered using a modulating signal. To mitigate bit errors in ASK decoding caused by the dithering of the clock signal in the wireless power transmitting device, ASK communication receiving circuitry in the wireless power transmitting device may receive information regarding the modulating signal used to dither the clock signal. The ASK communication receiving circuitry may receive a clock signal that has been dithered using the modulating signal, dither an analog-to-digital converter sampling rate using the modulating signal, or include notch filtering circuitry with parameters determined based on the modulating signal.

Abstract: A wireless power transmitter can receive the results of a characterizing signal transmitted by the wireless power receiver, compute at least two parameters of a model characterizing an in-band communications channel based on the received results of the characterizing signal transmitted by the wireless power receiver, compute a plurality of equalizing filter taps from the at least two parameters, and apply the computed equalizing filter to subsequent signals received by the wireless power transmitter via the in-band communications channel. A first parameter can correspond to a time constant of the channel, and a second parameter can correspond to a damping value of the communications channel. The wireless power transmitter can transmit to a wireless power receiver a request to transmit a characterizing signal through the in-band communication channel, wherein the characterizing signal transmitted by the wireless power receiver is sent in response to the transmitted request.

Abstract: Systems, devices, and methods related to frequency converter arrangements are provided. For example, a frequency converter arrangement converts a first signal centered at a first frequency to a second signal centered at a second frequency different from the first frequency. The frequency converter arrangement includes local oscillator (LO) circuitry and in-phase, quadrature-phase (IQ) mixer circuitry coupled to the LO circuitry. The LO circuitry includes duty cycle correction circuitry to adjust a duty cycle of a pair of input clock signals. The duty cycle correction circuitry includes coarse tuning circuitry responsive to a digital calibration code, and analog tuning loop circuitry. The LO circuitry further includes quadrature divider circuitry coupled to an output of the duty cycle correction circuitry, where the quadrature divider circuitry generates an in-phase LO signal and a quadrature-phase LO signal from a pair of output clock signals at outputs of the duty cycle correction circuitry.