Abstract: The present disclosure relates to a cover plate, a display panel and a display terminal. The cover plate includes a first region and a second region surrounding the first region. The second region includes a plurality of side cover plate regions and at least one corner opening region located between two adjacent side cover plate regions. The cover plate includes at least one buffer portion which is filled in the corner opening region.

Abstract: A random transient power test signal generator based on three-dimensional memristive discrete map, which utilizes a three-dimensional parallel bi-memristor Logistic map module to generate two pseudo-random sequences, and based on the sequences, uses two waveform output modules to generate transient voltage and transient current signals respectively, thus the random transient power testing signal is obtained. The map can significantly improve the complexity of chaos and greatly extend its range of chaos. In addition, a performance evaluation shows the map has more robust hyperchaotic behavior in much larger chaos range. Moreover, the random sequences generated by the map module combines with DDS, which can generate a transient power signal with completely random period, starting phase and ending phase.

Abstract: A multi-level conversion circuit and a control method for flying capacitor voltage thereof are provided. In the multi-level conversion circuit, each flying capacitor is connected between a common connection node of the lower switches connected therewith and a common connection node of the upper switches connected therewith. The control method includes steps of: (a) determining the main switch and synchronous rectification switch of the lower and upper switches; (b) acquiring an adjustment value corresponding to each flying capacitor; (c) adjusting a duty ratio of the main switch according to the adjustment value corresponding to the flying capacitor connected therewith; and (d) when the multi-level conversion circuit working in a CCM, increasing a phase-shift angle between the main switches by an angle to make a peak value or a valley value of an inductor current remain unchanged before and after adjusting the duty ratio.

Abstract: In the present disclosure, the multi-level AC/DC conversion circuit and the multi-level DC/DC conversion circuit calculate the duty ratio of synchronous rectification switch according to the input voltage, the output voltage, the interval time of turning on the main switch, the switching cycle and the duty ratio of main switch, thereby eliminating the need for additional zero-current detecting function or zero-crossing detection circuit in conventional AC/DC conversion circuits. Accordingly, for the multi-level AC/DC conversion circuit and the multi-level DC/DC conversion circuit of the present disclosure, the cost is reduced, and the reliability is enhanced.

Abstract: A multi-level conversion circuit and a control method for flying capacitor voltage thereof are provided. In the multi-level conversion circuit, each flying capacitor is connected between a common connection node of the lower switches connected therewith and a common connection node of the upper switches connected therewith. When the conversion circuit works in a DCM, the control method includes steps of: (a) determining the main switch and synchronous rectification switch of the lower and upper switches; (b) acquiring an adjustment value corresponding to each flying capacitor; and (c) adjusting a duty ratio of the main switch according to the adjustment value corresponding to the flying capacitor connected therewith, wherein the adjustment trend of the duty ratio under D<(N?2)/(N?1) is opposite to that under (N?2)/(N?1)<D?1, and D is the duty ratio before the adjustment.

Abstract: The present application provides an automobile seat cushion comprising: a body shaped like a flat sheet that has a top surface in contact with the buttocks of a user and a bottom surface in contact with an automobile seat; a plurality of protrusions that are distributed under the bottom surface of the body and provided to vertically protrude downward from the bottom surface, the plurality of protrusions being formed integrally with the body of the seat cushion; and a plurality of vertical ventilation holes that are formed to be recessed downward from the top surface of the body, the plurality of vertical ventilation holes and the plurality of protrusions being in one-to-one correspondence vertically, wherein each vertical ventilation hole of the plurality of vertical ventilation holes vertically extends downward beyond the bottom surface of the body from the top surface of the body, and enters into a corresponding protrusion but does not penetrate through a bottom of the corresponding protrusion, and wherein

Abstract: Disclosed is an exercise bench. In the exercise bench, a resistance assembly arranged inside a machine body supplies resistance forces to two pull cables, and the two pull cables are respectively led out from shields on two sides of a deck and change their directions by two pull cable steering mechanisms.

Abstract: The present disclosure relates to a smart exercise apparatus. The apparatus includes two pull cables each having a free end, and damping mechanisms configured to supply damping forces to the pull cables; and further includes a mount, arms, and a display raisably and lowerably connected to the mount. The arms are detachably connected to the mount, and the height of the arms is adjustable. The free ends of the two pull cables are respectively led out from two ends of the arms.

Abstract: Disclosed is a smart exercise apparatus equipped with electronic tags. The apparatus includes an exercise apparatus and an accessory. The exercise apparatus is provided with a reader, and the accessory is provided with an electronic tag, wherein the electronic tag is wirelessly connected to the reader. In the smart exercise apparatus, readers and electronic tags are respectively arranged on the exercise apparatus and the accessories thereof, such that the accessories are automatically identified in response to approaching the exercise apparatus.

Abstract: A rowing machine includes a rowing machine body, and further includes a fixing member, a deck fixedly connected to a lower portion of the rowing machine body, a receiving chamber opened in the fixing member, one end of the deck being rotatably connected to a lower end of the receiving chamber, and a size of the deck being identical to a size of the receiving chamber.

Abstract: Embodiments of the present application provide a screen body support device, including: a fixing bracket; a movable bracket being rotatably connected with the fixing bracket, in which the movable bracket and the fixing bracket are provided in a non-display area of a flexible display screen; and a driving component being fixedly connected with the movable bracket, in which the driving component is configured to drive the movable bracket to swing in two opposite directions with respect to the fixing bracket, so that the flexible display screen is bent in two opposite directions respectively.

Abstract: A method for preparing aluminum foam sandwich material by rotating friction extrusion and electromagnetic pulse hybrid process includes: step 1: preparing the filler; step 2: processing the filler to prepare a plurality of preforms; step 3: clamping and fixing the plurality of preforms to form a preform assembly; step 4: welding the panel on the surface of the preform assembly to form an non-foaming sandwich material; step 5: heating and foaming the non-foaming sandwich material through a foaming mold; step 6: insulating the foaming mold after completion of foaming; injecting cooling water into the foaming mold after completion of insulation to maintain pressure and shape, forming the aluminum foam sandwich material of the required shape. The aluminum foam sandwich material produced by this method has good interface bonding, no adverse interface reaction, high bending resistance, impact resistance, and excellent sound absorption and insulation properties.

Abstract: A method for transmission configuration indicator (TCI) state determination is provided. The method includes the following. Receive higher-layer configuration information. Determine N control resource sets (CORESETs) and at least one TCI state of each of the N CORESETs based on the higher-layer configuration information. Determine a target CORESET from the N CORESETs; and determine a target TCI state from at least one TCI state of the target CORESET.

Abstract: The invention relates to a GDSL lipase, genetically-engineered bacteria and an application thereof. The GDSL lipase is derived from Streptomyces diastaticus CS1801 and its amino acid sequence is as shown in SEQ ID NO.2. After construction of a genetically-engineered bacterium strain, a GDSL lipase is generated through fermentation. Through this enzyme, vitamin A and palmitic acid are converted to produce vitamin A palmitate. The content of the vitamin A palmitate obtained from the conversion is 16.35 mg/L at most. The conversion efficiency is 81.75% at most. This lipase provides a new path to synthesize vitamin A palmitate by the enzymatic method and has an important application prospect.

Abstract: A method for resource identifier determination and related apparatuses are provided. The method includes the following. Receive higher-layer configuration information. Determine a first transmission resource of a first transmission point and a second transmission resource of a second transmission point at least according to the higher-layer configuration information. Receive downlink control information (DCI) according to the first transmission resource and the second transmission resource. Determine a physical uplink control channel (PUCCH) resource identifier at least according to the higher-layer configuration information and the DCI.

Abstract: The present disclosure provides a vacuum food processor, comprising: a base, a vacuum blender jar, and a lid assembly. A vacuum air extraction device is disposed inside the base; and the lid assembly comprises a lid body, a main sealing ring, a vacuum status indicator, a first vacuum air extraction channel, a second vacuum air extraction channel, and a pressure relief device, wherein the vacuum status indicator comprises a deformable deforming portion, such that under the action of atmospheric pressure, the vacuum status indicator is compressively deformed toward an inner cavity of the vacuum blender jar.

Abstract: An information display method and an apparatus are described wherein a terminal obtains a first operation entered by a user. The terminal further obtains at least one key character based on the first operation. The terminal further determines that characteristic information associated with the key character is stored, and displays target information associated with the characteristic information. The target information is information that is in a set of information associated with the key character and that is associated with the characteristic information. The method can improve information display precision.

Abstract: A Dendrobium officinale oligosaccharide, a Dendrobium officinale oligosaccharide derivative and a preparation method and use thereof. The Dendrobium officinale oligosaccharide includes 3-9 glycoside residues and a glucose residue at a non-reducing end; the derivative thereof is obtained by substituting with a hydrophobic residue at the non-reducing end; the preparation method and use of both are also provided.

Abstract: The present disclosure provides a flexible LED light-emitting lamp strip including a long strip-shaped flexible circuit substrate as well as a plurality of light-emitting units arranged in a length direction of the circuit substrate and welded to the circuit substrate. The plurality of light-emitting units are connected in parallel with one another, and each of the plurality of light-emitting units includes a front light-emitting LED lamp bead, a first side light-emitting LED lamp bead and a second side light-emitting LED lamp bead.