36results about How to "Good floatation" patented technology

A snowmobile ski includes a bridge adapted to connect to a ski leg of a snowmobile, a ski body having an inner lateral edge, an outer lateral edge, a top surface adapted to be connected the bridge, and a bottom surface adapted for moving over snow, a keel running lengthwise along the bottom surface of the ski body in such a manner that a centerline of the keel is offset from a centerline of the bridge in a direction toward the outer lateral edge of the ski body, and a runner connected to the keel.

A watercraft propelled by a water jet includes an sealed hull portion including an upper deck and a bottom surface, an engine compartment located behind the sealed hull portion and containing a propulsion and steering system including an engine, a bladed impeller driven by the engine for inducting water and forcing the inducted water away from the craft through a directionally displaceable nozzle, and a control lever located on the upper deck including an engine throttle control and a steering control for adjusting the directionally displacement of the nozzle.

The invention relates to the field of traditional Chinese medicine preparations, and discloses rhizoma corydalis total alksloid gastric floating tablets. The rhizoma corydalis total alksloid gastric floating tablets are prepared from an active component and pharmaceutic adjuvants, wherein the active component is a rhizoma corydalis total alksloid extract, and the pharmaceutic adjuvants are prepared from a sustained-release framework material, a retarding agent, a floating promoter and a flow promoter; the weight ratio of the active component to the pharmaceutic adjuvants is equal to (1 to 1.1)-(1 to 2.1). The rhizoma corydalis total alksloid gastric floating tablets are short in time consumed by floating up and long in floating duration time, and has a slow-release effect; after being taken, the gastric floating tablets are not affected by gastric emptying in virtue of the floating property and the adhesion of forming gel in water, and can stay in the stomach for a long time; the rhizoma corydalis total alksloid gastric floating tablets are high in bioavailability, strong in drug action and low in local irritation, so that the compliance of a patient is greatly improved.

The invention discloses a roxithromycin controlled-release preparation. The roxithromycin controlled-release preparation is mainly prepared from roxithromycin and mesoporous silica, and the mass ratio of roxithromycin to mesoporous silica is (1-10):1. Mesoporous silica is adopted as a controlled-release material. Roxithromycin has high hydrophobicity and is fast dissolved out in the stomach, which is a key feature for guaranteeing the bioavailability of the preparation, after medicine is loaded in mesoporous silica,a crystalline structure is lost, an amorphous or molecular state emerges, the medicine is free of lattice constraint, free energy is large, and the medicine can be more easily dissolved in media; secondarily, a large specific surface of mesoporous silica is favorable for dissolution of the medicine; besides, adsorption of mesoporous silica on roxithromycin is physical adsorption, no chemical bonds are formed, main acting force is achieved through hydrogen bonds, bond energy is low, and medicine molecules can be easily released. The roxithromycin controlled-release preparation is simple in preparation technology and suitable for industrial production.

The invention discloses a preparation method for a floating type powdery aluminum pigment. The preparation method includes the step of solvent displacement, wherein a solvent is used for cleaning floating type aluminum silver paste; the step of primary filter pressing, wherein filter pressing is conducted on the floating type aluminum silver paste obtained in the solvent displacement step to obtain a first filter cake; the step of liquid phase dispersion, wherein a solvent is adopted for dispersing the first filter cake to obtain an aluminum sheet suspension; the step of surface treatment, wherein aluminum sheets in the aluminum sheet suspension are coated with surface treating agents. The preparation method has the advantages that the preparation process is simple, consumed time is short, repeatability is high and the stability of the obtained floating type powdery aluminum pigment is high. The floating type powdery aluminum pigment obtained through the method has a remarkable mirror plane effect, is good in dispersing performance and also has good floating performance.

The invention discloses a preparation method of compound algicide with a high alga removal rate and belongs to the technical field of algicide. According to the preparation method disclosed by the invention, coal ash and expanded graphite are mixed to serve as a carrier, saccharose is utilized as an outer coated carbon layer precursor, and the carrier and the saccharose are prepared into visible-light catalytic active compound algicide with visible-light catalytic activity is prepared through chitosan adsorption and copper ion coating; the compound algicide is in a worm shape and has good floatability, and an the alga removal rate of the algicide is improved; under irradiation of light, alga can generate oxygen on the surface through photosynthesis, the alga is accelerated to die, a descent rate of a chlorophyll content of the alga is quickened continuously, the alga is accelerated to die, and the alga removal rate of the algicide is improved againfurther; the chitosan and the coal both have better flocculation capacity and adsorption capacity, and the chitosan can generate amino groups with positive charge after reacting with hydrochloric acid; when the amino groups are more, an acid solution and magnetite powder are utilized to jointly modify the coal ash and the expanded graphite; thus, the alga removal rate of the algicide is further improved; the algicide has a wide application prospect.

The invention discloses an anemometry tower provided with a laser anemometer, which comprises a foundation of the anemometry tower. The foundation is provided with a bottom plate, side plates are connected on the peripheral walls of the bottom plate, the bottom plate and the side plates are connected to form a box type structure, a plurality of longitudinal supporting rods in the perpendicular and horizontal direction are mounted on the bottom plate, inclined supporting rods are connected among the longitudinal supporting rods, a tower body is mounted at the center of the bottom plate, an adjustable platform is mounted on the upper portion of the tower body and provided with a platform plate, a lead screw is mounted on the platform plate, one end of the lead screw is connected with the tower body, a main inclined supporting rod is mounted among the tower body and the side plates at least, positioning piles are mounted on the periphery of the bottom plate and are connected with one ends of the main inclined supporting rods, and the other ends of the main inclined supporting rods are connected with the tower body. The laser anemometer can be mounted on the anemometry tower, the anemometry tower is short in manufacturing cycle and low in manufacturing cost and is fine in stability after being positioned and sunk, the platform of the anemometry tower can be adjusted horizontally, the laser anemometer can be stably mounted on the platform of the anemometry tower, and acquisition of accurate data of anemometry can be guaranteed.