Abstract: The present disclosure relates to dielectric duplexers. One example dielectric duplexer includes a dielectric body, where an input/output structure, a tap, a first resonance structure, and a second resonance structure are provided on surfaces of the dielectric body. The tap and the input/output structure are provided on different surfaces of the dielectric body. The tap and the input/output structure are located between the first resonance structure and the second resonance structure. A first resonator consists of the first resonance structure and the dielectric body around the first resonance structure, and a second resonator consists of the second resonance structure and the dielectric body around the second resonance structure. A conducting layer covers a surface of the input/output structure, the tap, the first resonance structure, and the second resonance structure, and the conducting layer covers the surface of the dielectric body except a region around the input/output structure.

Abstract: Techniques are described for implementing automated control systems to control operations of target physical systems including batteries, such as based at least in part on models of the batteries' dynamic behaviors that are generated by gathering and analyzing information about the batteries' operations under varying conditions. The techniques may include, for each of multiple charge levels of a battery and for each of multiple resistive loads, injecting multi-frequency microvolt pulses into the battery, and using sensors to collect time changes of the responses to these pulses. Information about the inputs and the responses is then analyzed and used to generate an incremental parametric state model representing the internal dynamics of the battery, which is further used to control additional ongoing battery operations (e.g., to control whether and how much power is supplied to and/or extracted from the battery in a current or future time period).

Abstract: A tool box includes a box body and a tool-head fixing assembly. The tool-head fixing assembly is configured to fix the tool head. The tool-head fixing assembly includes a first positioning column and an elastic member. The first positioning column includes a positioning part and a mounting part. The positioning part extends in a first straight line, and the tool head is sleeved on the positioning part. The mounting part is connected to the box body. The tool-head fixing assembly has an assembled state and a disassembled state, when the tool-head fixing assembly is in the assembled state, the elastic member is mounted above the tool head, the elastic member forms an interference fit with the positioning part, and a projection of the elastic member on a plane perpendicular to the first straight line at least partially coincides with a projection of the tool head on the plane.

Abstract: This application provides an example dielectric filter and an example communications device. The dielectric filter includes a dielectric block. At least two resonant through holes that are parallel to each other are provided in the dielectric block. The resonant through hole is a stepped hole. The stepped hole includes a large stepped hole and a small stepped hole that are arranged coaxially and that are in communication. The small stepped hole passes through a first surface of the dielectric block. The large stepped hole passes through a second surface of the dielectric block. A stepped surface is formed between the large stepped hole and the small stepped hole. The surfaces of the dielectric block are covered with conductor layers. The conductor layers cover the surfaces of the dielectric block and inner walls of the large stepped hole and the small stepped hole. A conductor layer of the inner wall of the large stepped hole is short-circuited with a conductor layer of the second surface.

Abstract: A display substrate, a display panel and a display device are provided. The display substrate includes a plurality of pixel groups arranged in a first direction. Each pixel group at least includes a first pixel column and a second pixel column arranged sequentially along the first direction. The first pixel column includes one first display pixel or a plurality of first display pixels arranged in a second direction interesting with the first direction. The second pixel column includes one second display pixel or a plurality of second display pixels arranged in the second direction. The outline of the display area of the display substrate includes a first outline section not parallel to either the second direction or the first direction.

Abstract: A tool box includes a box body and a tool-head fixing assembly. The tool-head fixing assembly is configured to fix the tool head. The tool-head fixing assembly includes a first positioning column and an elastic member. The first positioning column includes a positioning part and a mounting part. The positioning part extends in a first straight line, and the tool head is sleeved on the positioning part. The mounting part is connected to the box body. The tool-head fixing assembly has an assembled state and a disassembled state, when the tool-head fixing assembly is in the assembled state, the elastic member is mounted above the tool head, the elastic member forms an interference fit with the positioning part, and a projection of the elastic member on a plane perpendicular to the first straight line at least partially coincides with a projection of the tool head on the plane.

Abstract: Apparatuses and techniques are described for providing a positive voltage source and a negative voltage source in a circuit. The positive voltage source and the negative voltage source have a common ground node. The positive voltage source can be provided using a current mirror in which a current in a first path is copied to provide a current in a second path. The currents of the first and second paths are sunk at the common ground node. The negative voltage source can be provided using a current mirror in which a current in a third path is copied to provide a current in a fourth path, where the current of the fourth path is sourced at the common ground node.

Abstract: The present disclosure provides a flexible transparent electrode, a flexible display panel, related manufacture methods, and a display device. The flexible transparent electrode includes a graphene body and metal nanowires. At least part of the metal nanowires is inserted into the graphene body to form an interpenetrating body structure.

Abstract: The present application discloses a display substrate having an array of a plurality of pixel areas. The display substrate includes a base substrate and a plurality of main spacers on the base substrate. The array of the plurality of pixel areas includes at least one group of pixel areas. Each of the at least one group of pixel areas includes a matrix of pixel areas. In each of the at least one group of pixel areas, each row of the plurality of pixel areas corresponds to at least one of the plurality of main spacers, and each column of the plurality of pixel areas corresponds to at least one of the plurality of main spacers.

Abstract: This application provides an uplink access method and a device. The method includes: a network device receiving indication information sent by a terminal device when the terminal device goes online, where the indication information is used to trigger the network device to send uplink registration window indication information on a first port; the uplink registration window indication information indicates a registration window location at which the terminal device sends uplink registration information; and the network device sends the uplink registration window indication information on the first port according to the indication information. According to the technical solutions provided in embodiments of this application, in a P2MP working mode, a network device may be prevented from periodically indicating a registration window, thereby reducing resource overhead and power consumption.

Abstract: The present disclosure discloses a method for coating an environmental barrier coating, comprising: coating an aluminum film layer on a surface of a rare earth silicate ceramic layer, and heat treating the aluminum film layer to form a rare earth aluminate phase at least in pores of a side of the rare earth silicate ceramic layer facing the aluminum film layer. An environmental barrier coating prepared by the above method is also disclosed.

Abstract: A voltage regulator circuit is presented that can generate a stable and well-regulated output level to supply loads that have large dynamic current and capacitive variation. A compensation circuit is added to introduce a zero that tracks the voltage regulator's non-dominant pole. The compensation circuit includes a compensation transistor, whose gate is connected to receive the same voltage as the regulator's load driving pass transistor, and a series combination of a capacitance and a tracking resistance connected in series between the compensation transistor's gate and a supply level, where the value of the tracking resistance depends on the current supplied to the load. The tracking resistance can be implemented as a diode connected NMOS through which the compensation transistor is connected to the low supply level, or a diode connected PMOS whose current tracks that of the compensation transistor through a current mirror.

Abstract: An input/output apparatus of a multiplexer is provided, including: a main tap and at least two branch taps of the main tap, where each of the at least two branch taps is configured to couple to a different resonant cavity in the multiplexer, and the at least two branch taps include a first branch tap and a second branch tap; a coupling polarity of the first branch tap is opposite to that of the second branch tap; and a coupling calculation frequency of the second branch tap is closest to a coupling calculation frequency of the first branch tap. The input/output apparatus of the multiplexer enables two channels with closest frequencies to use different coupling polarities. Because the coupling polarities are different, signals naturally do not interfere with each other, and signal interference between channels is eliminated in principle. The embodiments of the present disclosure further provide a corresponding multiplexer.

Abstract: Apparatuses and techniques are described for calibrating a negative voltage source. A ground voltage is applied to a multi-stage amplifier from the negative voltage source while an offset voltage measurement (OVM) is made at the output of the multi-stage amplifier. The OVM is recorded and subsequently used by a calibration circuit when the negative voltage source applies a range of negative voltages to the input of the multiple stage amplifier. The calibration circuit subtracts the OVM from measurements obtained at the output of the multi-stage amplifier to obtain corrected measurements, and uses the corrected measurements to calibrate the negative voltage source, e.g., by adjusting a relationship between digital values input to the negative voltage source and the output voltages.

Abstract: An optical signal modulation circuit includes a laser (DFB), a modulator (EAM), and an operational amplifier. The laser (DFB) generates a laser to stimulate the modulator (EAM) to generate a photon-generated current (ip), a first port (a) of the modulator (EAM) is connected to a first input voltage (Vbias), a second port (b) of the modulator (EAM) is connected to an inverting input end of the operational amplifier, a non-inverting input end of the operational amplifier is connected to a second input voltage (Vin), and an output end of the operational amplifier is connected to the first port (a) of the modulator. In the modulation circuit, a photon-generated current (ip) of the EAM is fed back to the operational amplifier, to implement a linear relationship between the second input voltage (Vin) and the photon-generated current (ip) of the EAM, and obtain a linear EML transmission curve, namely, a high-linearity EML.

Abstract: The present application discloses a sizing method for making paper. An alkenyl succinic anhydride (ASA) is added to a papermaking process. An aluminum salt is added in one or more process steps during the papermaking process. Preferably, the aluminum salt is an aluminum salt which can generate free aluminum ion in aqueous solution. The sizing method of the present application enhances the usage efficiency of a sizing agent and the aluminum salt, as well as provides paper having a high moisture content.

Abstract: This application describes an example dielectric resonator and a filter. One example dielectric resonator includes a body and an encirclement wall, where the encirclement wall is saliently disposed on a surface of the body. The encirclement wall of the dielectric resonator encircles the surface of the body to form a cavity area, where the encirclement wall isolates the cavity area from external space of the encirclement wall.

Abstract: The present application discloses a display substrate having an array of a plurality of pixel areas. The display substrate includes a base substrate and a plurality of main spacers on the base substrate. The array of the plurality of pixel areas includes at least one group of pixel areas. Each of the at least one group of pixel areas includes a matrix of pixel areas. In each of the at least one group of pixel areas, each row of the plurality of pixel areas corresponds to at least one of the plurality of main spacers, and each column of the plurality of pixel areas corresponds to at least one of the plurality of main spacers.

Abstract: A filter and a communications device are disclosed. The filter includes a metal cavity, a metal resonant cavity, and a metal cover covering the metal cavity and the metal resonant cavity. A dielectric waveguide is disposed in the metal cavity, and the dielectric waveguide is electrically connected to the metal cavity. Resonant rod is disposed in the metal resonant cavity. A coupling structure is disposed between the metal cavity and a metal resonant cavity that is neighboring to the metal cavity, the coupling structure includes a communication area between the metal cavity and the metal resonant cavity and a dielectric body that protrudes into the communication area, the dielectric body is connected to the dielectric waveguide, and the coupling structure is coupled to a resonant rod in the metal resonant cavity.

Abstract: The present application provides a separator comprising a first porous substrate, a second porous substrate and a first coating layer including a substance that reversibly intercalates and deintercalates lithium and a first inorganic particle, and an electrochemical device, wherein the first coating layer is disposed between the first porous substrate and the second porous substrate. By disposing the first coating layer between the first porous substrate and the second porous substrate, the present application improves the safety performance, rate performance and cycle performance of the electrochemical device.