Abstract: An insulated telescopic arm and an insulated bucket arm vehicle. The insulated telescopic arm comprises an outer arm (1), an insulated inner arm (2) and a self-adjusting roller apparatus (3). The insulated inner arm (2) is limited in the outer arm (1) and can extend out of the outer arm (1) from a free end of the outer arm (1) along an axial direction. The self-adjusting roller apparatus (3) comprises a pressure cylinder (31) disposed on the outer arm (1), piston rods (32)capable of moving up and down in the pressure cylinder (31), and roller assemblies (33) used to carry the insulated inner arm (2), there being at least two roller assemblies (33), and the roller assemblies (33) each comprising a roller shaft (331) and a roller body (332) used to carry the insulated inner arm (2) and rotatably sleeved on an outer side of the roller shaft (331). Two ends of the roller shaft (331) extending out of the roller body (332) are each correspondingly connected to a piston rod (32).

Abstract: An optical system and a display apparatus are provided. The optical system includes: a lens assembly, a transflective film, a reflective polarizing layer, a phase retardation film. The lens assembly includes at least two lenses, the at least two lenses include a first surface, a first attachment surface and a second surface arranged in sequence along a direction of an optical axis of the lens assembly. The transflective film is provided on a side of the first surface away from the second surface. The reflective polarizing layer is provided on a side of the second surface away from the first surface. The phase retardation film is provided on the first attachment surface. The first attachment surface is a curved surface, and a ratio of a minimum value of a curvature radius of the first attachment surface to a curvature radius of the second surface is not less than 3.

Abstract: A flow distribution control method for a hydraulic system, the hydraulic system comprising N loops L1-LN. The flow distribution control method comprises the following steps: S1: comparing pressures P1-PN at an inlet of an actuator in each loop of the hydraulic system; S2: according to the comparison result, determining a loop Lp1 which requires flow compensation; and S3: conducting flow compensation on the loop Lp1 according to the theoretical flow of the loop Lp1 and an actual flow in the loop Lp1 which flows into the actuator, wherein the number of loops in the loop Lp1 is less than or equal to N. Also disclosed are a flow distribution control device and a flow distribution control apparatus for the hydraulic system, the hydraulic system and a non-transitory computer-readable medium.

Abstract: An optical structure and a display device are provided. The optical structure includes at least one lens including a first surface and a second surface, a transflective film, and a reflective polarizing layer. The transflective film is at a side of the first surface away from the second surface; the reflective polarizing layer is at a side of the second surface away from the first surface. The second surface is a curved surface and includes a first region and a second region, a compensation film is between the reflective polarizing layer and the second surface, and a first compensation film surface of the compensation film away from the second surface is a curved surface; a distance between the first compensation film surface and a surface in the first region is smaller than a distance between the first compensation film surface and a surface in the second region.

Abstract: A method for compensating boom deflection comprising: determining a joint angle set of a boom if an end of the boom were to reach a predetermined target position when viewed as a rigid body, wherein the joint angle set comprises an angle of each joint of the boom; determining an actual position that the joint angle set causes the end to reach; determining the deviation between the actual and predetermined target positions; and when the deviation does not satisfy a predetermined condition, continuing to adjust the joint angle set until the deviation satisfies the predetermined condition. The end of the boom can consequently more accurately reach the predetermined target position. The present invention further relates to a method for controlling a boom, an apparatus for compensating boom deflection, an apparatus for controlling a boom, a construction machine, and a computer-readable storage medium.

Abstract: Embodiments of this application mainly relate to the field of energy conservation, and in particular, to modeling methods and methods for evaluating an energy conservation effect. A BES template library is established according to a building purpose, an ECM combination, and a type of HVAC system, the BES template library including a plurality of BES model templates. A purpose, an applied ECM, a type of HVAC system, and specified characteristic parameters of a target building are received. A first template is determined by retrieving a template with highest similarity to the target building from the BES template library according to the purpose, the applied ECM, and the type of HVAC system of the target building. A simplified BES model of the target building is obtained by modifying corresponding characteristic parameters in the first template according to the specified characteristic parameters of the target building.

Abstract: The present application relates to a stopping method and apparatus for a device with a hoisting mechanism and a crane. The method includes: generating a displacement change rate according to position offset information of a hoisting handle of the device when the position offset information meets a triggering condition; comparing the displacement change rate with a preset threshold to generate a stopping control instruction; and controlling an overhead system of the device to perform deceleration stopping according to the stopping control instruction. The stopping method and apparatus for the device with the hoisting mechanism, the crane, the electronic device and the computer readable medium involved in the present application may achieve the purpose of rapid stopping control only through the hoisting handle of the device, and reduce the requirement for the driver's reaction time and increase the safety of the device when emergency stopping is required.

Abstract: A display device and an optical system are provided, the display device includes a display screen, a lens assembly, a transreflective film, a polarizing reflective layer, a phase delay film. The display surface of the display screen is configured to emit light; the lens assembly is at a side of the display surface emitting light; the lens assembly includes a first surface and a second surface, the first surface is a convex surface, the second surface is at a side of the first surface away from the display surface; the lens assembly includes a third surface, the third surface is located at the side of the second surface away from the first surface; at least a portion of an edge of the first region is adjacent to at least a portion of an edge of the second region; only the second region is provided with a first microstructure.

Abstract: An optical structure and a display apparatus. The optical structure includes a lens structure, a beam splitting film, a reflective polarizing film, a phase retardation film and a compensation film. The lens structure includes a first surface and a second surface, the phase retardation film and the compensation film are arranged between the beam splitting film and the reflective polarizing film, the compensation film includes at least one sub-compensation film, the sub-compensation film includes a plurality of protruding structures spaced apart, a refractive index in a thickness direction of the compensation film is nz, the maximum in-plane refractive index and the minimum in-plane refractive index of the compensation film are nx and ny, respectively, and a thickness of the compensation film is d, nz, nx, ny, and d satisfy a following relational equation: nz>nx, nz>ny, (nx?ny)*d?20 nm.

Abstract: An optical system, a display apparatus, a glasses lens, and glasses are provided. The optical system includes a lens assembly, a transflective film, a polarizing reflective layer, a first phase retardation film, and a metasurface. The lens assembly includes a first surface, a second surface, a third surface, and a fourth surface that are sequentially arranged in a direction of an optical axis of the lens assembly. The metasurface is located on a side of the second surface away from the first surface, and the metasurface is located on a light emitting side of the polarizing reflective layer; and the metasurface includes a first area and a second area surrounding at least part of the first area, and a focal power of the first area is less than a focal power of the second area.

Abstract: A single plasmid vector system for packaging recombinant human adenovirus type 4. The vector system contains an E3 region-deleted human adenovirus type 4 (HAdV-4 or Ad4) genome, a vector sequence for amplifying plasmids in bacteria, a pBR322 replication origin, a kanamycin resistance gene, and a replication control sequence; and an exogenous gene embedding site is located behind a packaging signal of the human adenovirus type 4 and in front of an E1 region. The present invention further provides a method for packaging the recombinant human adenovirus type 4 by the single plasmid vector system and an application in vaccine and drug preparation. The vector system can be used for rapidly and efficiently preparing a human adenovirus type 4 vector recombinant virus for stably expressing an exogenous gene, and has a good application prospect in the fields of preparation of a diagnostic kit, a vaccine, a gene therapy kit and/or a tumor therapy drug, etc.

Abstract: A product state quantification and remaining life prediction method, the method comprising: T1, acquiring design data and operating data of a product; T2, establishing a design model of the product on the basis of the design data, performing data fusion according to the design data and operating data to obtain a predicted performance curve of the product, and selecting an optimized operating state point in the predicted performance curve; and T3, establishing a cost model and an operating flexibility model of the product on the basis of the predicted performance curve, and calculating a remaining life prediction of the product according to a performance demand or operating cost of the product.

Abstract: In an embodiment, a method (100) is described. The method comprises receiving (102) data corresponding to a plurality of radiographic imaging slices of a body. The method further comprises determining (104) a position of a needle inserted in the body. The determination is based on combining information from at least one of the radiographic imaging slices comprising an indication of a first portion of the needle outside the body and at least one other of the radiographic imaging slices comprising an indication of a second portion of the needle inside the body. A combined needle region is generated by merging data corresponding to a position of the first portion of the needle outside the body with data corresponding to a position of the second portion of the needle inside the body.

Abstract: A display apparatus and a manufacturing method thereof are provided. The display apparatus includes a display panel and a lens structure. The display panel includes a substrate and a plurality of sub-pixels located on the substrate. The lens structure is located on a light-emitting side of the display panel, and a lens surface of the lens structure close to the display panel is a curved surface. The display panel includes a first region and a second region surrounding the first region, an included angle between a light-emitting surface of a sub-pixel located in the first region and an optical axis of the lens structure is greater than an included angle between a light-emitting surface of a sub-pixel located in the second region and the optical axis.

Abstract: A pixel circuit includes a photodiode configured to photo generate image charge in response to incident light, a floating diffusion coupled to receive the image charge from the photodiode, a transfer transistor coupled between the photodiode and the floating diffusion to transfer the image charge from the photodiode to the floating diffusion, a reset transistor coupled between a variable voltage source and the floating diffusion, wherein the reset transistor is configured to be switched in response to a reset control signal, and a lateral overflow integration capacitor (LOFIC) coupled between the variable voltage source and the floating diffusion. The variable voltage source is configured to output a high-voltage level during a high conversion gain (HCG) reset signal readout and an HCG image signal readout, and a mid-voltage level during a LOFIC image signal readout and a LOFIC reset signal readout.

Abstract: An optical structure, a manufacturing method thereof and a display device. The optical structure has a light incident side and a light-exiting side, the optical structure includes a first lens, a transflective film, a phase retardation layer, and a polarizing reflective film. The first lens includes a first surface and a second surface, the phase retardation layer is located on a side of the second surface away from the first surface, the phase retardation layer includes an alignment layer and a liquid crystal layer, the manufacturing method includes: coating the alignment layer on the second surface of the first lens; using an alignment light source to optically align the alignment layer from the light incident side; coating the liquid crystal layer on a side of the alignment layer away from the second surface.

Abstract: An optical system and a display apparatus are provided. The optical system includes: a lens component, a polarized reflection layer, a transflective film, and a phase retardation film; a distance between two intersection points where the first surface and the second surface intersect with the optical axis is a first distance, a distance between two intersection points where the third surface and the fourth surface intersect with the optical axis is a second distance, and a distance between two intersection points of the fifth surface and the sixth surface intersect with the optical axis is a third distance; a ratio of an absolute value of a curvature radius of the fourth surface to an absolute value of a curvature radius of the third surface is 0.8 to 1, the second distance is greater than the first distance, and the second distance is greater than the third distance.

Abstract: An optical system and a display apparatus are provided. The optical system includes: a lens component, a transflective film, a reflective polarization layer, and a phase retardation film. The lens component includes at least two lenses which include a first surface, a second surface, a third surface and a fourth surface sequentially arranged. An absolute value of a curvature radius of the fourth surface is greater than that of the first surface, a ratio of a curvature radius of the third surface to that of the fourth surface is 0.3 to 0.8, and an absolute value ratio of a conic constant of the third surface to that of the fourth surface is no greater than 0.2.

Abstract: An optical system and a display apparatus are provided. The optical system includes: a lens component, a transflective film, a reflective polarization layer, and a phase retardation film. The lens component includes at least two lenses including a first surface, a second surface, a third surface and a fourth surface arranged sequentially; the transflective film is on a side of the first surface away from the second surface; the reflective polarization layer is between the second surface and the third surface; absolute values of curvature radii of the first surface and the second surface are both less than that of the fourth surface; a ratio of the curvature radius of the first surface to that of the second surface is 0.5 to 1.25; and an absolute value ratio of a conic constant of the first surface to that of the second surface is no greater than 0.4.

Abstract: A sensor assembly, a force detection device and method, and construction machinery, the sensor assembly comprising a connecting part used for connecting a base to be tested and a bearing part used for bearing, the bearing part being connected to the connecting part, the bearing part comprising at least two sensing units with different measuring ranges, and the at least two sensing units being arranged to have a different initial gap (b1, b2) from the connecting part, so that corresponding initial gap (b1, b2) are eliminated when a load applied to the bearing part reaches different extents. The different initial gaps (b1, b2) are eliminated by means of the load reaching a different extent, so that the sensing units with different measuring ranges can provide detection feedback in the respective working conditions in which the units have the highest measurement precision and thereby ensure the accuracy of detection results.