Abstract: The invention relates to an elevator with an elevator car moving between landings at different levels in a first section of an elevator shaft. A second section located above the first section, the second section comprising a lifting device mounted under a crash deck and an installation platform which is movably suspended by the lifting device in the second section. At least one crash deck located between the first and the second sections.

Abstract: A control method of a three-phase multi-level inverter includes: determining a modulation ratio based on output of the three-phase multi-level inverter, where the modulation ratio indicates a ratio of an amplitude value of a sinusoidal modulation wave in pulse width modulation to an amplitude value of a carrier; generating, based on the modulation ratio and a modulation ratio threshold, a common-mode voltage regulation signal for regulating a common-mode voltage in phase voltages of the three-phase multi-level inverter; adding the common-mode voltage regulation signal and a differential-mode voltage regulation signal for regulating a differential-mode voltage in the phase voltages of the three-phase multi-level inverter to obtain a composite regulation signal, where the composite regulation signal is presented as a modulation wave for discontinuous pulse width modulation (DPWM); and generating, based on the composite regulation signal, drive signals for controlling switches of phases of the three-phase multi-

Abstract: The embodiment of the present disclosure provides a display panel, which includes an array substrate, a counter substrate and a spacer. The array substrate includes a base substrate and a plurality of signal lines on the base substrate. The plurality of signal lines include a plurality of first signal lines and a plurality of second signal lines. The plurality of first signal lines and the plurality of second signal lines intersect each other to define a plurality of first regions. The plurality of first regions include a plurality of first pixel regions, at least one second pixel region and at least one redundant region. The first signal line extends along a first direction, the second signal line includes a body portion extending along a second direction, at least one second signal line further includes a bending portion connected to the body portion.

Abstract: A crosslinkable polyolefin composition includes: a) ?60.0 wt. % and ?99.0 wt. % of an ethylene alpha-olefin co-polymer; b) ?1.0 wt. % and ?35.0 wt. % of an ethylene-alpha-olefin-diene terpolymer; c) ?0.1 wt. % and ?5.0 wt. % of a crosslinking agent; with regard to the total weight of the polyolefin composition. A film includes the polyolefin composition. An encapsulated solar cell is encapsulated by at least two sealing layers each including such a film. In addition, a cured solar cell is obtained by subjecting the encapsulated solar cell under conditions of curing the sealing layers, a photovoltaic module includes the cured solar cell.

Abstract: The present application provides a device control method and apparatus. The method comprises: uploading a resource packet of a first device to an Internet of Things platform; receiving a configuration file of the first device sent by the Internet of Things platform, wherein the configuration file is generated by the Internet of Things platform according to second attribute information of the first device when it is determined that the first device accesses the Internet of Things platform according to first attribute information of the first device in the resource package; and parsing the second attribute information of the first device from the configuration file, such that a second device controls the first device according to function information of the first device corresponding to the second attribute information.

Abstract: Embodiments of the present disclosure provide a display device and a driving method. The display device includes a display panel that includes a plurality of pixels, each of the plurality of pixels includes a pixel electrode, wherein the pixel electrode includes a plurality of pixel sub-electrodes spaced from each other; and a drive circuit configured to load a first drive voltage with different maintaining durations to at least part of a plurality of pixel sub-electrodes in a set pixel through a signal output terminal in a picture display stage, so that the set pixel is switched from a first state to a second state; wherein the set pixel is at least one of the plurality of pixels.

Abstract: A material feeding apparatus includes a rolling shaft, a sensor, and a control unit. A material roll is disposed on the rolling shaft, and the material feeding apparatus is configured to rotate the rolling shaft to convey a material belt in the material roll. The sensor is configured to sense material roll information and send the material roll information to the control unit. The control unit is configured to control a rotation status of the rolling shaft based on the material roll information.

Abstract: An epoxidized vegetable oil is subjected to a first ring-opening reaction with an acidic catalyst and a ?-mercaptoalcohol compound to obtain a first reaction solution, and then the first reaction solution is subjected to a second ring-opening reaction with a cyclohydrocarbyl methanol compound to obtain the vegetable oil polyol, which adopts novel ring-opening reagents to introduce an antioxidant sulfur-containing fragment into the molecular structure of the vegetable oil polyol in a covalent manner, while also introducing a cyclohydrocarbyl group and retaining a small portion of epoxy groups, thereby ensuring that a polyurethane product has a certain degree of toughness, in addition to relatively good corrosion resistance and oxidation resistance, while guaranteeing the mechanical properties of the polyurethane material.

Abstract: A display substrate (910), comprising a plurality of pixel units (P11, P12, P21, P22) and at least one compensation circuit. At least one pixel unit (P11, P12, P21, P22) comprises: a main light-emitting unit and an auxiliary light-emitting unit; and the at least one compensation circuit is connected to the auxiliary light-emitting unit of the at least one pixel unit (P11, P12, P21, P22). The at least one compensation circuit is configured to measure the brightness or temperature of the at least one pixel unit (P11, P12, P21, P22) and control the auxiliary light-emitting unit of the at least one pixel unit (P11, P12, P21, P22) to emit light according to a measurement result.

Abstract: Debug engine receives a capture file over the network interface and initiate playback by executing the capture file with the processor. The capture file comprises real-time local network environment video synchronized with data captured by a local browser at a local station interacting with a local network gateway device over a local network. The capture file is played back, using a mock server including transmitting HTTP requests from the capture file at the developer station to the mock gateway server. Additionally, HTTP responses are received from the capture file at the mock gateway server, in synch with actions in the real-time local network environment video. A GUI engine renders a GUI on the developer computer from real-time GUI code generated from the capture file playback as modified by processing the HTTP responses.

Abstract: Resorbable implants, coverings and receptacles comprising poly(butylene succinate) and copolymers thereof have been developed. The implants are preferably sterilized, and contain less than 20 endotoxin units per device as determined by the limulus amebocyte lysate (LAL) assay, and are particularly suitable for use in procedures where prolonged strength retention is necessary, and can include one or more bioactive agents. The implants may be made from fibers and meshes of poly(butylene succinate) and copolymers thereof, or by 3d printing molding, pultrusion or other melt or solvent processing method. The implants, or the fibers preset therein, may be oriented. These coverings and receptacles may be used to hold, or partially/fully cover, devices such as pacemakers and neurostimulators. The coverings, receptacles and implants described herein, may be made from meshes, webs, lattices, non-wovens, films, fibers, foams, molded, pultruded, machined and 3D printed forms.

Abstract: The present discloses relates to a method for continuously synthesizing 5-hydroxymethylfurfural by using a micro-channel reactor, which belongs to the technical field of micro-chemical engineering. The method includes: separately conveying an aqueous glucose solution, which contains FeCl3 and HCl, and methyl butyl ketone to a T-shaped micro-mixer, the T-shaped micro-mixer being in communication with a capillary tube; then enabling an aqueous glucose solution phase and a methyl butyl ketone phase to flow in the capillary tube in a segmented flow manner while performing an HMF synthesis reaction; and collecting a reaction product flowing out of the capillary tube, wherein HMF generated by the reaction is present in an organic phase of the reaction product. The method is easy to operate, has a controllable process, high product yield, a low by-product amount and a short synthesis period, and is a green method for efficient and continuous synthesis of HMF.

Abstract: A display panel includes a driving backplane, an optical device layer, an adhesive layer and an optical conversion layer. The optical device layer includes optical devices each including a buffer layer and at least one light emitting unit. The buffer layer includes a first surface and a second surface. The first surface is farther away from the driving backplane than the second surface. The light-emitting unit is located on a side of the second surface away from the first surface. A buffer layer of at least one optical device further includes a side surface for connecting a first surface and a second surface. The side surface intersects with the first surface to form a first acute angle, and the side surface intersects with the second surface to form a first obtuse angle. A refractive index of the adhesive layer is less than a refractive index of the buffer layer.

Abstract: A pixel circuit includes a light emitting element, a first energy storage circuit, a first driving circuit, a second driving circuit, a first driving control circuit, a second driving control circuit, a second energy storage circuit and a first control data voltage writing-in circuit; the first control data voltage writing-in circuit controls to write a first control data voltage into the third node under the control of a first writing-in control signal; both the first terminal of the first driving circuit and the first terminal of the second driving circuit are electrically connected to a power supply voltage terminal, the first driving circuit is used to drive the light emitting element under the control of a potential of the control terminal thereof, and the second driving circuit is used to drive the light emitting element under the control of a potential of the control terminal thereof.

Abstract: An asset, such as a module, may be used to provide access to a resource. The asset may include identifiers that indicate a type, version, or format of the asset. At least in some instances, an enterprise may desire to store and maintain assets of a particular type. Accordingly, the assets may be converted subsequent to receiving a request for the resource for which the asset is used to provide access. The converted assets may be output to a cache memory of a device attempting to access the resource and/or saved on a database to provide to additional computing devices attempting to access the resource.

Abstract: The present invention relates to the technical field of train power supply and operation control, and provides a three-rail power supply control system for an electrical railway train. Power supply rails in the system are divided into a first power supply rail, a second power supply rail, and a third power supply rail, wherein the first power supply rail, the second power supply rail, and a running rail constitute a three-phase AC power supply loop, and the third power supply rail and the running rail constitute a DC power supply loop. An AC-DC-AC variable voltage variable frequency device supplies power to a train traction motor by means of the three-phase AC power supply loop and current collectors. Frequency modulation and voltage regulation power supply is conducted by means of the AC-DC-AC variable voltage variable frequency device on the ground to achieve train driving and operation control.

Abstract: A display panel has sub-pixel regions. The display panel includes an optical device layer, an adhesive layer and a light adjustment layer. The optical device layer includes a buffer layer and light-emitting units, a light-emitting unit is located in an opening region of a corresponding sub-pixel region, and the buffer layer is located on a light-exit surface of the light-emitting units. The adhesive layer is located on a side of the buffer layer away from the light-emitting units, a refractive index n2 of the adhesive layer being less than a refractive index n1 of the buffer layer. The light adjustment layer is located on the side of the buffer layer, and is configured such that when light emitted by the light-emitting units enters into the buffer layer, at least part of light with a refraction angle greater than or equal to arc ? sin ? n ? 2 n ? 1 enters the adhesive layer through the light adjustment layer.

Abstract: The invention relates to a construction arrangement of an elevator, comprising a hoistway in a building, the hoistway comprising a hoistway opening, the opening delimited by lower and upper edge structures; a load in the hoistway lower than said opening; a hoisting arrangement for hoisting said load, said hoisting arrangement comprising a support structure higher than said load; a hoisting device; and flexible tension member connected to said load; the flexible tension member being movable with said hoisting device to hoist the load by a hoisting force. Said support structure comprises an anchoring beam structure comprising a lower end engaging the lower edge structure, and an upper end engaging the upper edge structure; and a support beam structure connected to the anchoring beam structure, protruding from the anchoring beam structure into the hoistway; said flexible tension member hanging in the hoistway supported by the support beam structure.

Abstract: A power converter includes a power conversion circuit, a relay, and a controller. The power conversion circuit can be configured to implement conversion from a direct current to an alternating current. The relay can be configured to implement on-grid and off-grid switching. The controller can be configured to control switch-on/off of switches in the power conversion circuit and the relay. When a positive direct current bus has a short circuit to ground, the controller switches off a relay of a corresponding phase when any phase of grid voltage is negative. When a negative direct current bus has a short circuit to ground, the controller switches off a relay of a corresponding phase when any phase of grid voltage is positive.

Abstract: A fault control beam tomography regularization method and apparatus, a computer, and a storage medium are provided. The method includes: acquiring a seismic imaging data volume; extracting a coherence attribute from the seismic imaging data volume; resampling data of the coherence attribute to obtain a resampling coherence attribute corresponding to a tomography grid; obtaining an input ray density by ray tracing; calculating a fault control beam tomography operator according to the resampling coherence attribute and the input ray density; and introducing the fault control beam tomography operator to a tomography inversion target function for regularization constraint, to obtain a tomography inversion target function into which the regularization constraint has been added.