12results about How to "Complex structure" patented technology

The invention relates to the technical field of medical preparations, in particular to moisturizing and repairing type artificial tear as well as a preparation method and application thereof. Comprising the following steps: preparing effective components including high-molecular-weight polydeoxyribonucleotide and hyaluronic acid or a salt thereof into a homogeneous-phase stable composite solution, sterilizing, filtering, and aseptically packaging, the artificial tear formed by selecting high-molecular-weight polydeoxyribonucleotide and high-molecular-weight sodium hyaluronate as effective components has a relatively good repairing effect on tissues, can form long-term moisturizing and lubrication on ocular surfaces, is suitable for treating xerophthalmia, repairing cornea, relieving inflammatory response and the like, and has a good application prospect. Important market values and clinical application prospects are realized.

The present invention discloses a belt-transmission angle attachment head, including a housing, a power mechanism, a transmission mechanism and a spindle; the power mechanism and transmission mechanism are arranged in the housing; the power mechanism includes a servo motor and a reducer, the servo motor is connected to the reducer, and an input shaft of the reducer is vertically arranged with respect to an output shaft of the reducer; the transmission mechanism includes a driving wheel, a transmission belt and a driven wheel, and the driving wheel is mounted on the output shaft of the reducer; a side of the spindle is mounted on the housing via a rotating shaft, an end of the rotating shaft away from the spindle is mounted with the driven wheel, the driving wheel and the driven wheel are connected via the transmission belt, and the spindle and the power mechanism are located on the same side of the transmission mechanism. The angle attachment head has advantages such as small size, simple structure and suitable for deep cavity machining.

The application belongs to the field of stem cell biology and relates to a culture method of a 3D nerve immune organoid containing microglia cells, which comprises the following steps: S1, inducing induced pluripotent stem cells in ectoderm direction and mesoderm direction respectively to obtain nerve-like embryoid bodies and yolk sac-like embryoid bodies; S2, culturing the nerve-like embryoid bodies to make them differentiate into nerves to obtain nerve ring structures, re-digesting the nerve ring structures to obtain nerve progenitor cell single cells, and culturing the yolk sac-like embryoid bodies to make them generate macrophage progenitor cells; and S3, fusing the nerve progenitor cell single cells and the macrophage progenitor cells and continuing to culture to form the 3D nerve immune organoid containing microglia cells. The brain-like organoid of the application can realize the following functions: exploring the control of microglia cells on the proportion of progenitor cells in the development stage, the change of phagocytosis, the control on the number of mature neurons, the influence on cell proliferation and apoptosis, and simultaneously accepting external stimulation and making corresponding functional stress changes.

The utility model discloses a fire vehicle -mounted electric rubber dinghy platform relates to fire equipment field, including bottom plate, electric capstan and manual capstan, and the bottom plate top one side is hinged with the storage platform through the rotating shaft, and the bottom plate, electric capstan and manual capstan are all installed at the top of the external fire engine, and the bottom plate includes bottom plate main part, and one side fixed connection of bottom plate main part has hydraulic rod, and hydraulic rod is equipped with two groups and is fixed at one side of bottom plate main part, and electric capstan includes capstan main part, and this platform can utilize the bundle rope and fix electric rubber dinghy on the storage platform surface, when using, can manually rotate and lift the storage platform, utilizes electric capstan to spread the storage platform, and the unfolded storage platform is contacted with the ground, and the fireman is convenient to take down electric rubber dinghy and uses, and the whole operation process is fast and efficient, can all -round improve the efficiency, safety and adaptability of water area rescue action, better guards the life and property safety of the people.

This application provides a medical ultrasonic scalpel, a medical ultrasonic scalpel system, and a robot-assisted ultrasonic scalpel system, belonging to the field of medical device technology. The medical ultrasonic scalpel includes a fluid flow sleeve and a scalpel shaft. The fluid flow sleeve includes a sleeve body and a first protrusion. The sleeve body has mounting cavities extending through opposite ends of the sleeve body. The first protrusion is located on the inner sidewall of the sleeve body. The scalpel shaft extends through the mounting cavity and is pivotally connected to the fluid flow sleeve. The scalpel shaft and the fluid flow sleeve are movable in the extension direction X. The outer sidewall of the scalpel shaft has a second protrusion. The first protrusion and the second protrusion cooperate such that when the fluid flow sleeve rotates in a first rotation direction, the first protrusion and the second protrusion are misaligned, allowing the fluid flow sleeve to move in the extension direction X. When the fluid flow sleeve rotates in a second rotation direction, the first protrusion and the second protrusion abut against each other, thereby driving the scalpel shaft to rotate in the second rotation direction, where the first rotation direction is opposite to the second rotation direction.

The invention provides fatty acylation split-ring iridoid glycoside as well as a preparation method and application thereof, the fatty acylation split-ring iridoid glycoside comprises at least one of fatty acyl gentiopicroside, fatty acyl sweroside and fatty acyl swertiamarin, and the fatty acyl gentiopicroside is at least one of fatty acyl gentiopicroside, fatty acyl sweroside and fatty acyl swertiamarin. Wherein the fatty acyl gentiopicroside, the fatty acyl swertiamarin and the fatty acyl swertiamarin are respectively represented by a structural formula (I), a structural formula (II) and a structural formula (III), and a group R1, a group R2 and a group R3 are respectively and independently selected from alkyl or alkenyl with the carbon atom number of 5-21. The preparation method of the fatty acylation split-ring iridoid glycoside is also applied to preparation of a fatty acylation gentian plant extract. The fatty acylation split-ring iridoid glycoside and the fatty acylation gentian plant extract are used as raw materials to be applied to the field of medicine to play the roles of relieving, removing red, resisting inflammation, relieving itching, cleaning, emulsifying and resisting bacteria, and are also used as functional raw materials to be applied to the field of daily chemicals to play the roles of relieving, removing red, resisting inflammation, relieving itching, cleaning, emulsifying and resisting bacteria.

The application discloses a kind of space three curved steel box girder model construction methods based on BIM technology, comprising: step 1, obtain the two-dimensional drawing data of bridge, generate route space curve;Step 2, according to the ellipse equation in two-dimensional drawing data, generate the corresponding semicircular arc part profile of roof, bottom plate, web plate and rib plate in bridge, and form parameterized profile family with corresponding straight line part profile;Step 3, with the obtained route space curve as reference, generate the corresponding steel box girder frame entity of bridge;Step 4, according to the diaphragm parameter of bridge section in two-dimensional drawing data, generate diaphragm entity;Step 5, with route space curve reference, the generated diaphragm entity is imported into steel box girder frame entity, and the corresponding three curved steel box girder model is output.The application further provides a kind of space three curved steel box girder model construction system.The method of the application can solve the technical problems of three curved steel box girder fine lofting and deepening design.

The invention discloses a connector, which is used for being plugged with a mating connector to form a connecting assembly, and comprises a shell provided with a guide rail; the power assisting rod is hinged to the shell, and the power assisting rod is provided with a driving face which is away from a matched connector in a rotating mode; one end of the transfer rod is provided with a connecting part, and the other end of the transfer rod is provided with a guide part which is in guide movement fit with the guide rail and a power part which abuts against the driving surface and can move relative to the driving surface; when the power assisting rod rotates, the driving face pushes the power part so that the switching rod can move in the direction away from the matched connector under the guiding of the guiding part and the guiding rail. The power assisting rod can be promoted to be more miniaturized and flattened, the transfer rod and the connecting part of the transfer rod are allowed to move in a more complex combined track, and the movement is more stable.

The invention provides hydrocarbylated split-ring iridoid glycoside and a preparation method and application thereof, the hydrocarbylated split-ring iridoid glycoside comprises at least one of hydrocarbylated gentiopicroside, hydrocarbylated sweroside and hydrocarbylated swertiamarin, and the hydrocarbylated split-ring iridoid glycoside comprises at least one of hydrocarbylated gentiopicroside, hydrocarbylated sweroside and hydrocarbylated swertiamarin. Wherein the hydrocarbylated gentiopicroside, the hydrocarbylated swertiamarin and the hydrocarbylated swertiamarin are respectively represented by a structural formula (I), a structural formula (II) and a structural formula (III), and R1, R2 and R3 are respectively and independently selected from alkyl or alkenyl with the carbon atom number of 6-22. The preparation method of the hydrocarbylated split-ring iridoid glycoside is also applied to preparation of a hydrocarbylated gentian plant extract. The hydrocarbylated secoiridoid glycoside and the hydrocarbylated gentian plant extract are applied to preparation of relieving, red-removing, anti-inflammatory, itching-relieving, cleaning, emulsifying and bacteriostatic medicines as raw materials, and are also applied to the field of daily chemicals as functional raw materials to play the roles of relieving, red-removing, anti-inflammatory, itching-relieving, cleaning, emulsifying and bacteriostatic.

This invention relates to the field of automotive parts technology, and discloses an automotive trim component with a transparent, seamlessly integrated lidar sensor and its manufacturing method. The trim component includes: a connected trim body, a mounting frame, and a lidar sensor. The trim body is disposed on the side of the mounting frame away from the lidar sensor and is connected to the mounting frame. The trim body includes a main body and a shielding coating covering the main body, with the shielding coating located on the side of the main body closer to the mounting frame. The main body is made of transparent plastic. The trim body has a lidar window area directly opposite the lidar sensor. A filter layer is provided along the lidar window area on the trim body. The filter layer allows light of a preset wavelength to pass through and filters light of other wavelengths. The advantages of this invention are that the automotive trim component is easy to manufacture, low in cost, and has a neat lidar window boundary.

The utility model discloses an assembled graphite product, including base, with the base of graphite block and the circular ring thin wall component of setting outside graphite block and with base intercalation, the circular ring thin wall component includes a plurality of arc blocks of intercalation, and two ends of arc block are equipped with first intercalation block, first intercalation groove. The graphite product provided by the new type has complex structure, and has certain mechanical strength, improves the application of graphite product.

This invention discloses a structurally variable coupled chaotic system and its applications, belonging to the field of information security technology. The coupled chaotic system is formed by the coupling of multiple discrete chaotic systems. During system evolution, the coupling structure between different subsystems is dynamically changed in real time by manipulating the coupling matrix. The coupled system exhibits complex dynamic behavior and high nonlinearity, and the dynamic changes in structure cause continuous abrupt changes in the system's dynamics, resulting in non-stationary chaotic sequences. This system is resistant to attacks from statistical analysis, algebraic analysis, and other methods, exhibiting extremely high security. Furthermore, this system is applicable to various chaotic systems and complex chaotic networks of arbitrary scale. It can also generate complex dynamics based on simple discrete chaotic systems. Under the same complexity and security requirements, controlling structural changes results in lower overhead. It can be used to design high-performance chaotic cryptographic systems and as a component in network security applications.