Abstract: A power tool system and a battery pack. The battery pack includes a housing provided with a socket, and two battery cell groups received in the housing. Each battery cell group has a positive electrode and a negative electrode. The socket has four conductive terminals respectively and electrically connected to the electrodes of two battery cell groups. Two battery cell groups can be switched between isolated state and series connected state to output two different voltages through two conductive terminals with different polarities being disconnected or connected to each other, and the two conductive terminals with different polarities are respectively connected to two battery cell groups.

Abstract: A display substrate, a method for manufacturing the same, and a display device are provided.

Abstract: The invention relates to an ophthalmic pharmaceutical composition and its preparation methods and applications, wherein the pharmaceutical composition comprises of L-Alanyl-L-Glutamine suspended or dissolved in an isoosmotic solution suitable for human eyes, and has the advantages causing minimal irritation, with high stability and a good safety profile, and which can be used for relieving dry eye disease (DED) symptoms and/or improving and/or treating DED.

Abstract: A method for achieving terminal-pair definition of four-terminal-pair (4TP) impedance and an application thereof are provided, which belongs to the field of precision measurement and metrology. A current output terminal of a two-stage follower is connected to a high current terminal of impedance through a coaxial line, and a voltage output terminal of the two-stage follower is connected to a high voltage terminal of the impedance through the coaxial line, which makes current of the high voltage terminal be 0, and core wire currents and outer wire currents of the high current terminal equal and reverse. The terminal-pair definition of the 4TP impedance can be satisfied; and the follower is added to make a bridge ratio variable and isolate effects of bridge load changes, thereby accelerating a balancing speed of the 4TP impedance bridge, and achieving accurate and fast comparative measurement having high precision of the 4TP AC impedance.

Abstract: Systems, apparatus, and methods for detecting air breathed by a user and/or one or more gases are provided herein. In some embodiments, an apparatus may include a test material adapted to reduce in size when exposed to one or more stimuli. In some embodiments, one or more chemicals may be disposed on the test material and, when exposed to the air breathed by the user, the one or more chemicals are adapted to transform from a first color to a second color. In some embodiments, when the test material reduces in size an intensity of the second color increases. The apparatus may further include a face mask. In this regard, the test material may be removably attached to the face mask. The apparatus may further include a spectrophotometer configured to determine if the one or more chemicals have transformed from the first color to the second color.

Abstract: Various embodiments of the present disclosure are directed towards a semiconductor package comprising optically coupled integrated circuit (IC) chips. A first IC chip and a second IC chip overlie a substrate at a center of the substrate. A photonic chip overlies the first and second IC chips and is electrically coupled to the second IC chip. A laser device chip overlies the substrate, adjacent to the photonic chip and the second IC chip, at a periphery of the substrate. The photonic chip is configured to modulate a laser beam from the laser device chip in accordance with an electrical signal from the second IC chip and to provide the modulated laser beam to the first IC chip. This facilitates optical communication between the first IC chip to the second IC chip. Various embodiments of the present disclosure are further directed towards simultaneously aligning and bonding constituents of the semiconductor package.

Abstract: An apparatus to facilitate utilizing structured sparsity in systolic arrays is disclosed. The apparatus includes a processor comprising a systolic array to receive data from a plurality of source registers, the data comprising unpacked source data, structured source data that is packed based on sparsity, and metadata corresponding to the structured source data; identify portions of the unpacked source data to multiply with the structured source data, the portions of the unpacked source data identified based on the metadata; and output, to a destination register, a result of multiplication of the portions of the unpacked source data and the structured source data.

Abstract: The present invention provides a video processing method and apparatus, and an electronic device and a storage medium. The video processing method comprises: obtaining video materials; obtaining an audio material; determining music points of the audio material, and extracting video segments from each of the video materials according to the music points; stitching the extracted video segments to obtain a composite video; and adding the audio material to an audio track of the composite video to obtain a target video. The present invention improves the efficiency of producing a rhythmic video and reduces production costs.

Abstract: The present disclosure relates to a method for removing an artifact in an image, an electronic device, and a storage medium. The method includes obtaining original scan data of a target object collected by a detector during a first imaging scanning, and performing an artifact correction on the original scan data with a scattering reference signal. The original scan data includes a scattering signal. The scattering reference signal is obtained based on energy data of the detector obtained under a condition that no slit is applied and energy data of the detector obtained under a condition that a slit is applied during a second imaging scanning.

Abstract: The present invention relates to the use of hypoxia-inducible factor (HIF) inhibitors in cancer immunotherapy. Specifically, the disclosure provides methods of treating a cancer in a subject in need of cancer immunotherapy, comprising administering a HIF-1a inhibitor to the subject and a second cancer immunotherapeutic agent to the subject, wherein the HIF-1a inhibitor comprising echinomycin, and wherein the second cancer immunotherapeutic agent comprising an anti-CTLA-4 antibody including Ipilimumab or Tremelimumab.

Abstract: An electromagnetic transient simulation method and apparatus for a voltage source converter (VSC), an electronic device, and a storage medium are provided. The method mainly includes: performing circuit equivalence processing on a voltage source converter with any quantity of ports based on a work mechanism of the voltage source converter; performing discretization processing on the equivalent circuit, to obtain an equivalent target circuit, and determining a node admittance matrix expression and a historical current source expression according to the equivalent target circuit; and constructing a multi-port Norton equivalent model corresponding to the voltage source converter according to the node admittance matrix expression and the historical current source expression, and performing electromagnetic transient simulation on the voltage source converter by using the multi-port Norton equivalent model, to obtain a simulation result.

Abstract: The present invention provides a multi-modal data prediction method based on a causal Markov model, belonging to the technical field of intelligent traffic technology; the method of the present invention includes: collecting regional data and multi-modal traffic data of a research region; taking the time position, the regional point of interest and the weather information as conditional feature variables; taking the regional attraction factor, the bicycle demand factor, the taxi demand factor, the bus demand factor and the traffic speed factor as physical concept variables; taking the bicycle traffic flow, the taxi traffic flow, the bus traffic flow and the regional speed as multi-modal traffic data observation variables, and describing the generation process of the multi-modal traffic flow by using a causal Markov process; solving the causal Markov process by using a neural network, and training a built neural network for the multi-modal traffic data observation.

Abstract: A NVMe™ or NVMe-over-fabrics enabled device with video codec functionality may be seen to overcome scalability problem of known hardware assisted video codec solutions. The device of aspects of the present application may or may not have storage media. A host computer communicates with the device through NVMe™ commands. The device may be in one of many SSD form factors, such as U.2 or AIC. The device may be provided as a component in NVMe-enabled computers or NVMe-over-fabrics-enabled systems.

Abstract: Embodiments of the present disclosure relate to a method, apparatus and computer readable storage medium for positioning beam management. According to embodiments of the present disclosure, a terminal device determines signal quality and a time of arrival of a positioning reference signal received from a network device and identifies a positioning beam failure based at least in part on the determined signal quality and the time of arrival of the positioning reference signal.

Abstract: The present disclosure discloses an advanced mental fatigue early warning system, electronic device and storage medium, including a data acquisition module, a preprocessing module, an adjustment ability calculation module, a fatigue early warning module, a communication module and a storage module; the data acquisition module is configured for obtaining pupil diameter data; the preprocessing module is configured for preprocessing the pupil diameter data, removing invalid data, and performing linear interpolation; the adjustment ability calculation module is configured for performing calculation and correcting the preprocessed pupil diameter data; the fatigue early warning module is configured for performing mathematical modeling, establishing an advanced prediction model, and calculating a remaining time for an upcoming mental fatigue occurs and issuing an alarm; the communication module is configured for uploading mental fatigue adjustment abilities and alarm methods; the storage module is configured for arc

Abstract: A display substrate (20) and a display device (40). The display substrate (20) comprises a base substrate and a plurality of sub-pixels (100) located on the base substrate. Each sub-pixel (100) comprises a pixel circuit and a pixel electrode (134) electrically connected to the pixel circuit, and each pixel circuit comprises a driving sub-circuit. The pixel electrodes (134) each comprises an electrode body part (140) and a first electrode extension part (142) extending from the electrode body part (140). The display substrate (20) comprises first-type sub-pixels. The electrode body part (140) of each first-type sub-pixel (100) does not overlap a control electrode of the driving sub-circuit of the sub-pixel or an electrode part directly electrically connected to the control electrode, and the first electrode extension part (142) of each pixel electrode (134) at least partially overlaps the control electrode or the electrode part.

Abstract: The present invention relates to a sunscreen composition, which comprises 5 to 50% by weight of at least one UV protective agent; 0.05 to 5% by weight of at least one hydrophobically modified clay mineral; 1 to 60% by weight of at least one oil component; and 0.1 to 4% by weight of at least one associative polymer. The present invention also provide a method of achieving an improved sunscreen protection effect with desirable film morphology and excellent wear properties.

Abstract: The present embodiments relate to a perpendicular magnetic recording (PMR) write head with a Tunable Pole Protrusion or Tunable Pole Performance (TPP) side bridge design. A PMR write head can include a main pole including a tip portion configured to be disposed at an air-bearing surface (ABS) and configured to interact with a magnetic recording medium. The PMR write head can also include a hot seed (HS) portion and a first write shield. The PMR write head can also include a first metallic side bridge disposed between the tip portion of the main pole and the HS portion. The PMR write head can also include a bias circuit including at least a first bias electrical pad and a second electrical bias pad directing an electrical current flow along an electrical path between the tip portion of the main pole and the write shield portion via the first metallic side bridge.

Abstract: The present disclosure provides the use of BAZ1B_K426hy in the preparation of a product for tumor detection and belongs to the field of biotechnology. The present disclosure further provides a group of immunogenic polypeptides, including polypeptide A and polypeptide B. An anti-BAZ1B_K426hy polyclonal antibody is prepared by conducting mixed immunization on an animal with the immunogenic polypeptide. The polyclonal antibody can specifically recognize an endogenous protein BAZ1B_K426hy by enzyme-linked immunosorbent assay (ELISA)/Dot blot/Western blot, which is used for preparation of detection products for tumors and Williams syndrome.