Abstract: Provided are a pixel structure, a fine metal mask, a display apparatus and a control method. The pixel structure includes: a plurality of first sub-pixel columns, where the first sub-pixel column includes a plurality of first sub-pixels arranged along a first direction, and two adjacent first sub-pixel columns are separated by a second sub-pixel column. The second sub-pixel column includes a plurality of second sub-pixel groups, the second sub-pixel group includes a second sub-pixel and a third sub-pixel, and along the first direction, the second sub-pixels and the third sub-pixels in the second sub-pixel column are arranged alternately, and the first sub-pixel is configured to form a pixel unit with two second sub-pixel groups for displaying.

Abstract: A touch control structure is provided. The touch control structure includes a plurality of first mesh electrodes arranged in a plurality of rows and a plurality of second mesh electrodes arranged in a plurality of columns. The touch control structure includes a plurality of bendable mesh blocks along a column direction, and a plurality of gaps respectively in the plurality of bendable mesh blocks. In a respective bendable mesh block of the plurality of bendable mesh blocks, a respective gap of the plurality of gaps includes a plurality of line opens respectively breaking open multiple mesh lines of the respective bendable mesh block. The respective gap spaces apart the respective bendable mesh block into a respective first half mesh block and a respective second half mesh block directly adjacent to each other, which are insulated from each other by the respective gap.

Abstract: Disclosed are a cooling water-saving device for a cooling tower, and a wet cooling tower. The cooling water-saving device comprises indirect heat exchange devices and a water collecting tank. The inner wall of a cooling tower shell is sealed by the water collecting tank. The indirect heat exchange device comprises a heat exchange channel and a heat insulation channel. The heat insulation channel penetrates through the bottom of the water collecting tank, and the bottom inlet of the heat insulation channel communicates with air entering from the bottom of the cooling tower shell. The heat exchange channel for shielding water drops is arranged at the top outlet of the heat insulation channel, and the top of the heat exchange channel extends into an air outlet in the upper part of the cooling tower shell. The lower outlet of the heat exchange channel communicates with a rain area.

Abstract: A mechanical arm includes a first link connectable to a surface, a second link, a third link, a fourth link, and a fifth link that are coupled to one another in series, and an end effector connectable to the fifth link. The end effector is rotatable about an axis of rotation same as an axis of rotation of the fourth link, and rotatable about an axis of rotation orthogonal to the axis of rotation of the fourth link. The first link, the second link, the third link, the fourth link, and the fifth link are collectively structured and configured to rotate such that the end effector is actuatable to a workspace under the surface.

Abstract: The invention relates to a method for preparing amorphous particle-modified magnesium alloy surface-gradient composites and pertains to the technical field of composites. The method comprises steps of: holding the temperature at 150˜350° C. for FeCrMoBC amorphous alloy particles; mixing pure magnesium, pure zinc, pure aluminum, pure copper and Mg-5 wt % Mn alloy under continuous protective gases, gradually raising temperature to 720˜760° C. and melting at a constant temperature for 15˜25 min to obtain a magnesium alloy melt; cooling the magnesium alloy melt to 600˜635° C. and starting mechanical stirring; continuing the cooling until the semi-solid temperature is 570˜615° C., slowly adding the above FeCrMoBC amorphous alloy particles, holding for 2˜5 min after mixing evenly, and cooling the crucible with water to obtain an amorphous particle-modified magnesium alloy surface-gradient composite.

Abstract: The mask for evaporation includes a plurality of predetermined areas, each of the predetermined areas includes an opening and a blocking area, the blocking area includes a first area, a second area and a third area, first area has a first surface and a second surface, second area has a third surface and a fourth surface, third area has a fifth surface and a sixth surface, first surface, third surface and fifth surface are located on a same one side of mask, and second surface, fourth surface and sixth surface are located on a same one side of mask, thickness of second area is greater than thickness of first area and thickness of third area, first surface and third surface flush, and a plane where sixth surface is located is located between a plane where third surface is located and a plane where the fourth surface is located.

Abstract: The invention relates to a method for preparing amorphous particle-modified magnesium alloy surface-gradient composites and pertains to the technical field of composites. The method comprises steps of: holding the temperature at 150˜350° C. for FeCrMoBC amorphous alloy particles; mixing pure magnesium, pure zinc, pure aluminum, pure copper and Mg-5 wt % Mn alloy under continuous protective gases, gradually raising temperature to 720˜760° C. and melting at a constant temperature for 15˜25 min to obtain a magnesium alloy melt; cooling the magnesium alloy melt to 600˜635° C. and starting mechanical stirring; continuing the cooling until the semi-solid temperature is 570˜615° C., slowly adding the above FeCrMoBC amorphous alloy particles, holding for 2˜5 min after mixing evenly, and cooling the crucible with water to obtain an amorphous particle-modified magnesium alloy surface-gradient composite.

Abstract: A CaTiO3-based oxide thermoelectric material and a preparation method thereof are disclosed. The CaTiO3-based oxide thermoelectric material has a chemical formula of Ca1-xLaxTiO3, where 0<x?0.4. The present disclosure makes it possible to prepare a CaTiO3-based thermoelectric material with properties comparable to n-type ZnO, CaTiO3, SrTiO3 and other oxide thermoelectric materials. Among them, the La15 sample has a power factor reaching up to 8.2 ?Wcm?1K?2 (at about 1000 K), and a power factor reaching up to 9.2 ?Wcm?1K?2 at room temperature (about 300 K); and a conductivity reaching up to 2015 Scm?1 (at 300 K). The CaTiO3-based oxide thermoelectric material exhibits the best thermoelectric performance among calcium titanate ceramics. The method for preparing the CaTiO3-based oxide thermoelectric material of the present disclosure is simple in process, convenient in operation, low in cost, and makes it possible to prepare a CaTiO3-based ceramic sheet with high thermoelectric performance.

Abstract: A film mask, a manufacturing method thereof, a display panel and a display device are provided. The mask includes a frame and a first align mask. The frame includes two first frame edges extending along a first direction and arranged at intervals along a second direction and two second frame edges extending along the second direction and arranged at intervals along the first direction. The first frame edges and the second frame edges intersect to form a quadrilateral. The first frame edges and the second frame edges include first surfaces and second surfaces which are oppositely disposed. The first surfaces of at least three angles of the four angles are provided with the first align mask. The first align mask is provided with a first align identifier. The first direction intersects with the second direction.

Abstract: A trimmer includes a handle assembly, a power mechanism installed at one end of the handle assembly, and a blade assembly connected to the power mechanism. The power mechanism has a housing assembly, a motor received in the housing assembly, and a power transmission assembly mounted on the housing assembly. The motor is an external rotor motor with a diameter greater than or equal to 50 mm. The power transmission assembly has pinion coaxially sleeved on an output shaft of the motor and a big gear meshing with the small gear, and a transmission ratio of the small gear to the big gear is less than 6. By such arrangement, the trimmer can obtain the best output effect under a condition that the output power of the motor is unchanged.

Abstract: A flocculating, grading, and dewatering device includes a tank body, a mixing zone, a flocculent settling zone, a centrifugal dewatering zone, and a particle screening zone. An initial material is mixed with a chemical agent for a flocculation reaction, a lower sediment material settles and an upper liquid overflows. In the centrifugal dewatering zone, a screen basket is allowed to rotate to facilitate a centrifugal movement of the sediment material, water in the sediment material moves into a guide cavity and then flows to a centrifugate outlet, and then a dewatered material in the screen basket is removed out of the screen basket. In the particle screening zone, a screening mechanism screens particles of different size grades in the dewatered material, and water generated flows downward and is discharged; liquids discharged from the centrifugate outlet and the overflow port are combined, and then discharged through a mixed liquid outlet.

Abstract: The present application relates to the field of medical devices, and in particular to a suture anchor. A suture anchor includes an anchor head and an anchor body, wherein a threading hole is formed on the anchor head, the anchor body includes a side pressing portion integrally formed by a plurality of layers of round tables, and at least two opposite longitudinal cuts are formed on each round table of the side pressing portion; from a direction close to the anchor head to a direction away from the anchor head, positions of the longitudinal cuts on adjacent round tables are deflected toward a same side.

Abstract: A mask sheet for evaporation on a substrate is provided, and the mask sheet includes: a plurality of first ribs extending in a first direction; and a plurality of second ribs extending in a second direction intersecting the first direction, the mask sheet includes a first region for an evaporation of a first exposure region of the substrate and a second region for an evaporation of a second exposure region of the substrate, a third rib is provided at a boundary of the first region and the second region so as to shield an overlapping exposure region between the first exposure region and the second exposure region, the third rib includes a first sub-rib, a second sub-rib, and a spacer for separating the first sub-rib and the second sub-rib, and the third rib has a width greater than that of the first rib.

Abstract: An apparatus and method for measuring a structural angular acceleration based on dynamic centrifugal force measurement belong to the technical field of angular acceleration measurement. The apparatus has a solid ball. The solid ball can move freely along the radial direction of the outer wall packaging hood. The elastic block is used as a stress base. A rod for lateral limit and connection is used for connecting the rigid block and a pulley and limiting the displacement of solid ball so that the solid ball can only move longitudinally along the apparatus. The rigid block can move freely due to the pulley. Measurement of a transient angular acceleration is converted into dynamic measurement of the centrifugal force of the solid ball. Through the above design, the dynamic angular acceleration of the structure caused by dynamic load can be relatively accurately calculated.

Abstract: The present disclosure provides a transmission assembly and a garden tool. The transmission assembly is configured to connect a drive assembly and a garden work assembly. The transmission assembly comprises a casing and a first transmission component and a second transmission component accommodated in the casing; the first transmission component and the second transmission component are engaged with each other; the first transmission component comprises a first gear and a second gear engaged with each other; a gear shaft of the first gear is disposed at an angle with respect to a gear shaft of the second gear; and the second transmission component comprises a third gear able to rotate coaxially with the second gear and a fourth gear engaged with the third gear.

Abstract: A mechanical arm includes a first link connectable to a surface, a second link, a third link, a fourth link, and a fifth link that are coupled to one another in series, and an end effector connectable to the fifth link. The end effector is rotatable about an axis of rotation same as an axis of rotation of the fourth link, and rotatable about an axis of rotation orthogonal to the axis of rotation of the fourth link. The first link, the second link, the third link, the fourth link, and the fifth link are collectively structured and configured to rotate such that the end effector is actuatable to a workspace under the surface.

Abstract: An organic amine ester derivative drug of 2-(?-hydroxypentyl)benzoic acid and a preparation method thereof and an use thereof are disclosed. The present disclosure particularly relates to a compound having the general formula I or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable formulation prepared from the compound or the pharmaceutically acceptable salt thereof. The compound having the general formula I or the pharmaceutically acceptable salt thereof has in vitro a good solubility and a low hygroscopicity, and has in vivo a bioavailability and a brain aggregation concentration that are significantly greater than those of the original medicine butyphthalide and/or an improving drug efficacy. The use of the compound in the preparation of a drug for preventing and/or treating heart and cerebral ischemic diseases, a drug for preventing and/or treating heart and cerebral artery occlusion diseases, an anti-parkinsonian drug and an anti-senile-dementia drug is also disclosed.

Abstract: A measuring device and method for horizontal dynamic impedance of specified foundation depth based on differential response analysis of pulse excitation. The measuring method is realized based on the measuring device. Two rigid piles with different lengths are embedded into different foundation depths. Motion characteristics of the two rigid piles in the process of collision impact with the outside are different under the same pulse excitation. Dynamic impedance of specified foundation depth is deduced from the formula according to the differential response. Single-degree-of-freedom oscillators are arranged on the pile heads of the two piles, and strain gauges are arranged on the bottoms of the single-degree-of-freedom oscillators to obtain stress states of the single-degree-of-freedom oscillators, thereby calculating the relative displacements of the single-degree-of-freedom oscillators. This is simple in structure, reliable in measurement and convenient in data collection and processing.