Abstract: A four-dimensional (4D) light-detection-and-ranging sensor using frequency modulated continuous wave is provided with an ultra-high velocity resolution. At a transmitting terminal, the hybrid waveform of a driving laser is used to minimize the phase noise generated by a distributed-feedback laser during wavelength scanning. The hybrid waveform is obtained by combining direct-current signal (not modulated) and alternating-current (AC) signal. The AC signal is a predistorted triangle or AC waveform for extracting location. The continuous wave (CW) extracts velocity. At a receiving terminal, a radar radio-frequency receiver is combined with an avalanche photodiode (APD) with multiple layers accumulated in series to obtain excellent responsivity and saturated current. The mixed waveform coordinated with the APD prevents Doppler shift frequency from being contaminated by low-frequency flicker noise.

Abstract: A battery current collector plate and a battery, the current collector plate comprising a current collector plate body and a weld zone, the current collector plate body having a first face for contacting a rolled core, and a second face opposite the first face; at least a portion of the second face is provided with the weld zone, and the weld zone has a lower laser reflectivity than the first face. In the present utility model, the weld zone of low laser reflectivity is provided on the current collector plate, such that a surface of the current collector plate absorbs laser energy more effectively, thereby increasing the efficiency and precision of welding. At the same time, the weld zone of low laser reflectivity can also reduce the temperature and the amount of heat generated during laser welding, thereby safeguarding the performance and stability of a rolled core assembly.

Abstract: A current collecting plate for a negative electrode of a battery unit. The current collecting plate comprises: a main body part that forms a main body of the current collecting plate; a welding region that is arranged at the approximate center of the main body part; and a connecting part that connects the welding region to the main body part, wherein in addition to being connected to the connecting part, the welding region is separated from the main body part by a through opening.

Abstract: Embodiments of the present application provides a method for improving the short-circuit capability of an enhancement-mode (E-mode) GaN HEMT and its device structure. This is achieved by depositing metal in the active region between the gate and the source, adjacent to the source region of a conventional E-mode GaN HEMT, the metal is directly connected with the source of the conventional E-mode GaN HEMT. The conventional E-mode GaN HEMT is combined with a gate-source-shorted depletion-mode (D-mode) GaN HEMT to form a complete E-mode GaN HEMT with improved short-circuit capability. By clamping the saturation current of the complete device through the D-mode GaN HEMT, the saturation current density of the E-mode GaN HEMT can be reduced, and the purpose of improving the short-circuit capability is finally realized.

Abstract: A manufacturing method of an input circuit of a flip-flop including: depositing a first gate strip, a second gate strip, a third gate strip, and a fourth gate strip, wherein a distance between the first and second gate strips, a distance between the second and third gate strips, and a distance between the third and fourth gate strips equal; executing a cut-off operation upon the first gate strip to generate a first first gate strip and a second first gate strip; executing a cut-off operation upon the third gate strip to generate a first third gate strip and a second third gate strip; and directing a first signal to the first first gate strip and the second third gate strip, and a second signal to the second first gate strip and the first third gate strip.

Abstract: A front light module includes a light guide sheet and a light bar. The light guide sheet has two light receiving laterals, a fold line, a first pattern area, and a second pattern area respectively located on two sides of the fold line. One light receiving lateral is protruded to form first taper sets, and the other is protruded to form second taper sets. The second pattern area is superimposed on the first pattern area, and the first and second tapers set are engaged and coplanar to form a light incident surface after folding along the fold line. The light bar provides light toward the light incident surface, the first pattern area is lit by the odd positions of the light bar via the first taper sets, and the second pattern area is lit by the even positions of the light bar via the second taper sets.

Abstract: A battery electrode sheet, a cylindrical battery, and a method for manufacturing same. The battery electrode sheet comprises a coated zone coated with an electrode material, and a bare foil zone, the bare foil zone being provided with multiple oblique slots and multiple oblique protrusions in an alternating manner. The cylindrical battery comprises a positive electrode sheet, a negative electrode sheet and a separator, the positive electrode sheet and/or the negative electrode sheet being the battery electrode sheet. The method for manufacturing a cylindrical battery comprises flattening positive/negative electrode end faces of a cell, wherein the direction of flattening is the same as the direction of inclination of oblique protrusions.

Abstract: A cylindrical battery cell. The cylindrical battery cell includes an anode, a cathode, one or more separator sheets that separates the anode from the cathode, an electrolyte and a cylindrical housing. The anode, the one or more separator sheets, and the cathode are rolled together to form a roll and the anode, the cathode and the one or more separators form concentric layers within the roll. The roll is seated in the cylindrical housing. At least one of the anode and the cathode includes a plurality of apertures formed from an inner radial surface of the roll to an outer radial surface of the roll. The plurality of apertures form passageways that are configured to facilitate a flow of the electrolyte within the roll such that the electrolyte flows into the roll.

Abstract: A server includes a server module and an expansion module, the server module includes a first tray provided with a first connecting mechanism, a first circuit board mounted on the first tray, and a top cover covered on the first tray for enclosing the first circuit board between the first tray and the top cover; the expansion module includes a second tray provided with a second connecting mechanism matching with the first connecting mechanism and a second circuit board mounted on the second tray, the second circuit board is electrically connected to the first circuit board. A server system is also provided.

Abstract: A fuel combustor for nitrogen-containing fuel minimizes NOx emissions from the combustion of nitrogen-containing fuels such as ammonia fuel. A turbine for generating power includes a drivable turbine and at least one of the fuel combustors for nitrogen-containing fuel. Methods of combusting nitrogen-containing fuel with the fuel combustor, minimizing NOx emissions formed by the combustion of nitrogen-containing fuel, and generating power are disclosed.

Abstract: An electrode sheet for a lithium ion battery, comprising a coated part coated with an electrode material along a length direction of the sheet and an uncoated part uncoated with the electrode material, wherein the sheet comprises a sheet head and a sheet tail; the uncoated part of the sheet head is provided with a head notch; and the uncoated part of the sheet tail is provided with a tail notch. In the present invention, notches of specific shapes and sizes are provided in the uncoated parts of the head and tail ends of the electrode sheet, respectively, which can diminish the problem of a tab end face becoming larger in diameter, protruded outward or folded when flattened, and diminish the problem of a center hole being blocked.

Abstract: The present disclosure relates to a system, a method and a computer-readable medium for quality prediction. The method includes obtaining values of a parameter of a first endpoint, obtaining values of a parameter of a second endpoint, and generating a prediction of the parameter of the first endpoint according to the values of the parameter of the first endpoint and the values of the parameter of the second endpoint. The prediction includes probability distribution information of the parameter of the first endpoint at a timing in the future. The present disclosure can result in a more precise quality prediction.

Abstract: An avalanche photodiode (APD) with cascaded multiplication layers (M-layer) is provided. The APD is applied to high speed and wide dynamic range applications. It has an epitaxial-layers structure. The structure is formed by inserting at least one charge layer into a single M-layer. The single M-layer is thus sliced into at least two layers, a first and a second M-layers, of different thicknesses. Thus, edge breakdown is suppressed and the increase of dark current caused by M-layer reduction is relieved for high speed performance.

Abstract: In an example, a battery includes a metal foil. A coating is disposed on a portion of the metal foil, and an uncoated portion of the metal foil corresponds to an electrode member of the battery. The battery further includes a ceramic barrier disposed on at least a portion of a boundary between the electrode member and the coating.

Abstract: A battery includes an anode, a cathode, one or more separators, and an electrolyte. The anode, the cathode, the one or more separators, and the electrolyte are disposed in a roll configuration. At least one of the anode or the cathode includes a foil portion having a plurality of bent portions in different widths that are bent inwardly toward an axis of the roll configuration and that define an edge of the roll configuration.

Abstract: A multi-electrode device is provided. The device improves electrical-to-optical (E-O) frequency response in vertical cavity surface emitting laser (VCSEL) array. An electrode is used in a near quasi-single-mode (QSM) VCSEL array having zinc diffusion apertures for enhancing high-speed data transmission. By forming a distance less than 20 microns between the centers of every two neighboring apertures in the VCSEL array being compact 2×2-coupled, high-speed data transmission is significantly enhanced. The present invention exhibits good electro-optical frequency response suppression and good 3-decibel E-O bandwidth. Concerning the maximum QSM optical output power and the Gaussian-like optical far-field with a narrow diverging angle, significant improvement in dynamic performance do not sacrifice static performance.

Abstract: A server device which is self-adaptive to different placements and locations includes a chassis, a plurality of storage elements, and a storage cabinet. First and third slide rails are positioned at opposite sides of the storage cabinet along a first direction. Second and fourth slide rails are positioned at other two opposing sides of the storage cabinet. The storage cabinet is movably positioned in the chassis along a third direction. When the chassis is horizontal, the first slide rail and the third slide rail provide support for the storage cabinet and when the chassis is vertical, support is provided by the second and fourth slide rails. The problem of the storage cabinet being difficult to slide when the placement of the chassis is changed is reduced, and the server device is more flexible in its placement.

Abstract: The present application relates to an image processing method and system. The method includes: determining an enhanced image of a target object of an input image based on a segmentation algorithm, where the enhanced image of the target object comprises an image in which each pixel classified as the target object is displayed in an enhanced manner; and determining a positioning image of the target object by applying an integral image algorithm to the enhanced image of the target object.

Abstract: A transition metal layered oxide is a P2 type transition metal layered oxide which is represented by following formula (1). Na0.67-2xM1xMgaCubMn1-a-bO2??(1) In the formula (1), M1 is selected from a group consisting of calcium (Ca), potassium (K), magnesium (Mg), and lithium (Li), 0.01?a+b?0.5, 0.01?a?0.5, 0.01?b?0.5, and 0?x?0.2. A positive electrode material of a sodium-ion battery includes the above transition metal layered oxide.

Abstract: A front light module includes a light guide sheet and a light bar. The light guide sheet has two light receiving laterals, a fold line, a first pattern area, and a second pattern area respectively located on two sides of the fold line. One light receiving lateral is protruded to form first taper sets, and the other is protruded to form second taper sets. The second pattern area is superimposed on the first pattern area, and the first and second tapers set are engaged and coplanar to form a light incident surface after folding along the fold line. The light bar provides light toward the light incident surface, the first pattern area is lit by the odd positions of the light bar via the first taper sets, and the second pattern area is lit by the even positions of the light bar via the second taper sets.