7results about How to "Improve offset" patented technology

This invention relates to the field of fireboat water pump installation technology, specifically to a method for installing a water-spraying propelled fireboat's water pump. The method includes: S1. Initially positioning the water inlet channel on the hull plate, allowing the outlet flange of the water inlet channel to extend into the pump chamber; S2. Placing a dummy pump fixture in the pump chamber, the dummy pump fixture including a dummy pump body, with dummy pump feet at the bottom of the dummy pump body. The dummy pump feet are first anchored to the outlet flange of the water inlet channel using locating pins, and then fixed with bolts; a dummy pump shaft, which is a round tube, is installed on the top of the dummy pump body; S3. Butt-welding the water inlet channel to the hull plate, monitoring the relative position changes of the dummy pump shaft and the steel wire in real time; S4. After welding the water inlet channel, marking the center line of the dummy pump shaft, disassembling the fixture from the outlet flange of the water inlet channel, replacing the fixture with the actual pump, and completing the water pump installation. This installation method avoids inaccurate positioning due to welding deformation of the water inlet channel causing the center line of the water inlet channel to shift, which in turn leads to the shift of the pump shaft center line, thus improving the positioning and alignment accuracy.

The invention belongs to the field of biological medicine, and discloses antisense oligonucleotide targeting VEGFA precursor mRNA, a pharmaceutical composition and application of the antisense oligonucleotide. The antisense oligonucleotide has a nucleobase sequence complementary to a specific segment of VEGFA precursor mRNA, and can promote the migration of VEGFA precursor mRNA splicing to VEGF165b, so that the antisense oligonucleotide can be used for preventing or treating diseases or symptoms related to vascular hyperplasia.

The utility model relates to the technical field of building construction, and discloses a template lifting device which comprises two template components which are sequentially arranged in the vertical direction, each template component is formed by connecting a plurality of templates end to end, and die cavities of the two template components are communicated and connected in a magnetic attraction mode. The device further comprises a frame body, a fixing assembly and a moving assembly, the frame body is arranged on the outer side of the formwork assembly, the fixing assembly is arranged on the frame body, and the moving assembly is movably arranged on the frame body in the vertical direction. The fixed assembly is detachably connected with the formwork assembly located on the upper portion, the movable assembly is detachably connected with the multiple formworks of the formwork assembly located on the lower portion, and after concrete in a die cavity of the formwork assembly located on the lower portion is poured and formed, the multiple formworks of the formwork assembly located on the lower portion can be driven by the movable assembly to move upwards; and therefore, the template assembly is positioned above the original template assembly. According to the formwork lifting device, the problems of shaking and deviation of the formwork in the lifting process can be effectively solved, the construction precision is improved, and the construction safety is guaranteed.

This utility model discloses a modular shelf light with a snap-locking structure, belonging to the field of display lighting accessories. Addressing the problems of unstable installation and poor conductivity reliability in existing shelf lights, it provides a modular shelf light solution including a shelf support and a shelf, with an anti-detachment component and a conductive connection at the shelf insertion end. In the anti-detachment component, the snap-locking hook structure engages with a track slot, and the support part moves to the locking position to limit the elastic deformation of the snap-lock, forming an active lock. The conductive connection uses elastic conductive glass beads in elastic contact with the conductive strip. The lighting part includes a light guide strip and a light shield to optimize light. This utility model enhances the stability of the mechanical connection and the reliability of conductivity, improves light uniformity, reduces glare, solves the stability, reliability, and safety problems of existing shelf lights in frequent use scenarios, and improves product practicality.

This invention relates to the field of seismic exploration technology, and particularly to a method and apparatus for AVO trend correction of pre-stack gathers for interlayered shale oil reservoirs. The method includes: constructing seismic wavefield amplitude and travel time equations based on the steady-phase principle; establishing illumination weight coefficient equations based on deconvolution imaging conditions according to the seismic wavefield amplitude and travel time equations; determining illumination weight coefficients using the equations based on the forward-modeled wavefield propagation amplitude, receiver amplitude, shot amplitude, travel time from imaging point to shot point, travel time from imaging point to receiver point, travel time from shot point to receiver point, and angular frequency; and using the illumination weight coefficients to perform amplitude illumination compensation on the pre-stack gather seismic data to obtain the pre-stack gather imaging results after AVO trend correction. This invention can improve the accuracy of AVO in pre-stack seismic gathers, thereby identifying sweet spots in interlayered shale reservoirs with optimal reservoir and production potential, improving the reliability of geological models, reducing the risk of blind drilling, and saving exploration costs.

An electronic device may include a flexible display having a first display portion and a second display portion that rotate relative to each other about a bending axis. The flexible display may be mounted to a foldable housing having a first housing portion and a second housing portion coupled by a hinge aligned with the bending axis. The foldable housing is operable in a flat state and a folded state. The translation assembly may be configured to slide the display relative to the housing when the device is moved between a flat state and a folded state. A compression assembly may be used to apply compression to the flexible display when the foldable housing is in the folded state. A tensioning assembly may be used to apply tension to the flexible display when the foldable housing is in a flat state. The translation assembly, compression assembly, and tensioning assembly may be combined into a module if desired.

The utility model relates to the technical field of lead screw detection, in particular to multifunctional lead screw detection equipment, which mainly comprises a supporting plate, a bearing seat is fixedly mounted in the middle of the top end of the supporting plate, a torsion sensor is connected to one side of the bearing seat, a gear motor is mounted on one side of the torsion sensor, and a detection adjusting assembly comprises a sliding block. A mounting plate is arranged at the top end of the sliding block, a sliding frame is fixedly connected to the outer side of the sliding block, and a replacement chuck is connected to one side of the mounting plate. According to the multifunctional lead screw detection equipment, the mounting plate and the sliding block are slidably clamped and fixed, so that the mounting plate is convenient to disassemble, the mounting plate and the replacement chuck are fixed and limited through insertion and are also convenient to disassemble and assemble, the replacement chucks matched with lead screws of different models can be conveniently replaced, and the practicability is high. And the replaced replacement chuck is matched with the bearing seat to stably position the screw rod, so that the abrasion is reduced, and the efficiency and the precision of the detection equipment are ensured.