Abstract: The present invention provides a zero-steering hydraulic drive axle, which includes: a housing, and the housing is internally provided with a first drive assembly. One end of the first drive assembly is connected to an external power input device for power input, and the other end of the first drive assembly is connected to an external rotation output device. The first drive assembly includes: a plunger pump and a plunger motor. One end of the plunger pump is matched with the power input device, and the other end of the plunger pump is connected to an external oil pipe for oil feeding or supplementing. The plunger motor is matched with the rotation output device. The present invention is simple in overall structure, stable in power output, capable of realizing stepless speed change and pivot steering and turning, and wider in application scene range.

Abstract: A longitudinal beam assembly includes an integrally formed longitudinal beam and a mounting tower. The mounting tower is mounted on the longitudinal beam. The longitudinal beam is provided with a first suspension mounting portion, and the first suspension mounting portion is configured to mount a suspension lower swing arm. The mounting tower is provided with a shock absorber mounting portion and a second suspension mounting portion. The shock absorber mounting portion is configured to mount a shock absorber and the second suspension mounting portion is configured to mount a suspension upper swing arm.

Abstract: Embodiments of this application relate to the field of vehicle technologies, and specifically, to a vehicle frame and a vehicle. The vehicle frame includes longitudinal rails and a steering gear; the steering gear includes a shell and a steering rod slidably disposed in the shell; two ends of the shell are fixedly connected to the longitudinal rails respectively; and two ends of the steering rod respectively protrude out of the longitudinal rails, so as to be movably connected to wheels, and the steering rod drives the wheels to steer when the steering rod slides. In this way, the vehicle frame provided in the embodiments of this application is able to guarantee the torsional mode and stiffness of the whole vehicle while achieving light-weighting of the body.

Abstract: Provided are a quantum dot display panel, a preparation method, and a display device. The quantum dot display panel includes a backlight module, a quantum dot color filter structure, a first reflecting layer and a second reflecting layer. The quantum dot color filter structure is positioned on a light exit side of the backlight module. The quantum dot color filter structure includes at least a red quantum dot color filter unit, a green quantum dot color filter unit and a composite quantum dot color filter unit. The first reflecting layer is arranged on a side of the quantum dot color filter structure facing away from the backlight module. The first reflecting layer covers the red quantum dot color filter unit and the green quantum dot color filter unit. The second reflecting layer is arranged on a side of the backlight module facing away from the quantum dot color filter structure.

Abstract: The present application discloses a manufacturing method of an optical film and the optical film. The manufacturing method includes: step S10, mixing titanium source precursors and a barium source and adding an alkaline agent for a reaction to obtain nanoparticles; and step S20, mixing quantum dots, an organic adhesive, and the nanoparticles followed by coating to obtain the optical film.

Abstract: Disclosed are a method and device for determining a gray-scale value of a display panel. The method includes that: brightness values corresponding to multiple gray scales under a target area of a display panel are fitted to obtain a target slope value and a target deviation value; a reference brightness value under a target gray scale of the display panel is determined according to the target slope value and the target deviation value; and an output gray-scale value corresponding to each pixel under the target gray scale is determined according to the reference brightness value.

Abstract: Provided in the present invention are a salt of an arylaminopurine derivative represented by Formula (2), a preparation method therefor and the use thereof. The salt obtained in the present invention has good crystallinity and significantly improved solubility relative to that in the free form, and the preferred salt and crystal form have low hygroscopicity and can exist stably. Therefore, compared with the free form of arylaminopurine derivatives or other salts, it is easier to prepare same into a medicine.

Abstract: A method for preparing a fluorescent polarizing film based on directional arrangement of quantum rods. In the method, an inkjet printing technology is used for printing quantum-rod ink having proper viscosity and surface tension on a substrate according to a preset pattern, and directionally arranging quantum rods to obtain a fluorescent polarizing film. The diameter and spacing of fluorescent lines obtained by the method can be controlled and adjusted according to parameter conditions such as a needle aperture, a printing speed, and a preset pattern. The prepared transparent fluorescent film with directionally arranged quantum rods has a high degree of polarization, can be prepared on a flexible substrate in a normal temperature environment, and has wide applicability.

Abstract: Provided are a quantum dot material, a preparation method and use thereof. The quantum material includes a quantum dot, and a first cladding layer and a second cladding clad outside of the quantum dot, wherein the first cladding layer is located between the quantum dot and the second cladding layer. The quantum dot material provided herein has good water and oxygen barrier properties and good stability.

Abstract: Disclosed is a method for preparing a quantum rod/polymer fiber membrane by using electrospinning technique. The method comprises the following steps: (1) preparing a quantum rod solution; (2) preparing a polymer solution, and adding the quantum rod solution obtained in step (1) into the polymer solution so as to form an electrospinning precursor solution with a volume concentration of the quantum rods of 5%-80%; and (3) adding the electrospinning precursor solution into an electrospinning device, regulating the voltage of a generator and the receiving distance, and then performing electrospinning to prepare the quantum rod/polymer fiber membrane. By adjusting the concentration of the quantum rod solution and parameters in the electrospinning process, the method realizes directional arrangements of the quantum rods in the electrospinning process, thereby obtaining the quantum rod/polymer fiber membrane with high degree of polarization performance.

Abstract: Provided are a backlight module, a display device, a method for driving a display device, an electronic apparatus, and a computer-readable storage medium. The backlight module includes: a base substrate; multiple light emitting modules disposed on a side of the base substrate, where each of the multiple light emitting modules includes a first light emitting region, a second light emitting region and a third first light emitting region; and a light exiting layer disposed on a side of the light emitting modules facing away from the base substrate. Vertical projections of the first light emitting region, the second light emitting region and the third light emitting region on the base substrate overlap with vertical projections of a first light exiting region, a second light exiting region and a third light exiting region on the base substrate respectively. Each backlight driving module is connected to at least one light emitting module.

Abstract: Barium titanium particles, a method of preparing the same, and a display panel are disclosed. The method includes steps of mixing a barium source precursor and a titanium source precursor with an alkaline solution to obtain a to-be-reacted mixture solution, wherein the barium source precursor is selected from barium enoate; and reacting the to-be-reacted mixture solution under a first condition for a first time, and then isolating and purifying to obtain the barium titanium particles.

Abstract: Disclosed are a pharmaceutically acceptable salt of a heterocyclic compound depicted by formula (A) or a hydrate of the salt. The pharmaceutically acceptable salt is selected from alkali metal salts. The present inventors have unexpectedly discovered that three salts, especially sodium salt, lithium salt and a hydrate of either salt, have improved solubility and dissolution when compared to the compound of formula A, and thus can be more easily formulated into a drug product when compared to the compound of formula A. Also disclosed is a use of the heterocyclic compound or a hydrate depicted by formula A, a pharmaceutically acceptable alkali metal salt thereof or a hydrate of the alkali metal salt in the preparation of a medicament for treating acute lung injury or acute respiratory distress syndrome.

Abstract: Barium titanium particles, a method of preparing the same, and a display panel are disclosed. The method includes steps of mixing a barium source precursor and a titanium source precursor with an alkaline solution to obtain a to-be-reacted mixture solution, wherein the barium source precursor is selected from barium enoate; and reacting the to-be-reacted mixture solution under a first condition for a first time, and then isolating and purifying to obtain the barium titanium particles.

Abstract: Provided are a backlight module, a display device, a method for driving a display device, an electronic apparatus, and a computer-readable storage medium. The backlight module includes: a base substrate; multiple light emitting modules disposed on a side of the base substrate, where each of the multiple light emitting modules includes a first light emitting region, a second light emitting region and a third first light emitting region; and a light exiting layer disposed on a side of the light emitting modules facing away from the base substrate. Vertical projections of the first light emitting region, the second light emitting region and the third light emitting region on the base substrate overlap with vertical projections of a first light exiting region, a second light exiting region and a third light exiting region on the base substrate respectively. Each backlight driving module is connected to at least one light emitting module.

Abstract: Disclosed are a method and device for determining a gray-scale value of a display panel. The method includes that: brightness values corresponding to multiple gray scales under a target area of a display panel are fitted to obtain a target slope value and a target deviation value; a reference brightness value under a target gray scale of the display panel is determined according to the target slope value and the target deviation value; and an output gray-scale value corresponding to each pixel under the target gray scale is determined according to the reference brightness value.

Abstract: A device for fixing a metal tube with a plate by expansion includes a pressure head, a jacket and an expansion block. The jacket is of a cylindrical structure having a bottom and provided with a plurality of openings on the side having the bottom and near the bottom, and threads are provided on inner wall of jacket; threads are provided on outer wall of pressure head, and threads on outer wall of pressure head are matched with threads on inner wall of jacket; a cone head is fixed below pressure head and has an outer surface in an inverted cone shape; the expansion block has an inner surface in an inverted cone shape, a plurality of extrusion heads are arranged on outer surface and pass through openings on the side of the jacket; and inner surface of the expansion block is fitted with outer surface of the cone head.

Abstract: Provided are a quantum dot material, a preparation method and use thereof. The quantum material includes a quantum dot, and a first cladding layer and a second cladding clad outside of the quantum dot, wherein the first cladding layer is located between the quantum dot and the second cladding layer. The quantum dot material provided herein has good water and oxygen barrier properties and good stability.

Abstract: There is provided a microcatheter with a tapering wall thickness shaft having varying stiffness/flexibility along its length from proximal end near the medical practitioner to the distal end near the target site in the patient, such as with at least three segments. The shaft is prepared of a thermoplastic material having varying composition along its length. The distal end may be shaped according to the required use just prior to the medical procedure. The microcatheter is particularly adapted for the delivery of microspheric compositions for treatment of tumors or fibroids by embolization of peripheral blood vessels of the tumor or fibroid.