44results about How to "Effectively pass through" patented technology

The invention relates to a transient electromagnetic logging instrument which comprises a shell, a circuit module and an electromagnetic probe system, wherein the circuit module is arranged in the shell, and the electromagnetic probe system is connected with the circuit module. The circuit module is sequentially connected with a power voltage regulator module, a PWM (pulse width modulation) module, a high-power isolating transformer bank and a power conversion module through a direct-current power supply to form a direct-current power supply circuit and a main control circuit taking a digital signal processor as a core, and a communication bus, a power bus, a control bus and a data bus are arranged on the periphery of the main control circuit. The electromagnetic probe system comprises a transmitting coil and a plurality of receiving coils, wherein the transmitting coil is provided with a magnetic core. The instrument detects casing damage and effectively measures the formation resistivity of an open hole well and a cased well in a non-contact mode. High-power transient excitation is realized by the aid of internal iron cores of the coils, the excitation intensity of a transient electromagnetic field is improved, and the formation resistivity is finally obtained by necessarily graduating and processing measured original signals.

The invention relates to a high thermal conductivity metal substrate and a manufacturing method thereof. The high thermal conductivity metal substrate comprises a porous liquid crystal polymer (LCP) film, heat conducting insulation layers which are coated on two sides of the porous LCP film and have the thermal conductivity of 2-6W/m.K, a heat conducting insulation layer which is coated on a metal foil and has the thermal conductivity of 1-4W/m.K, and the metal foil. The two sides of the porous LCP film and one side of the metal foil are coated with the heat conducting insulation layers, and the high thermal conductivity metal substrate is prepared through lamination. The prepared metal substrate has high thermal conductivity and excellent dielectric properties.

The invention discloses a tractor for a finished steel strand and a threading method of the finished steel strand. The tractor comprises a hoop, a mandrel, a threaded connection sleeve and a traction pull ring. One side of the mandrel is inserted in the center of the finished steel strand, the other side of the mandrel is arranged at one end of the threaded connection sleeve, the other end of the threaded connection sleeve is arranged at one end of the traction pull ring, the other end of the traction pull ring is provided with a pull ring connected with traction equipment, the hoop is arranged on the end portion of the finished steel strand in a sleeved mode, and the size of the periphery of the tractor is smaller than the inner diameter of a construction hole channel. The threading method includes the steps: (1) braiding the finished steel strand, (2) sleeving mark plates at the two ends of the finished steel strand, (3) inserting the conical end of the mandrel into the center of the finished steel strand and squeezing the hoop, and (4) connecting the mandrel and the traction pull ring with the two ends of the threaded connection sleeve respectively. The tractor and the threading method have the advantages that the tractor is high in connecting strength and convenient to replace, winding and torsion among steel strand bodies are avoided, and the finished steel strand is threaded out of a corrugated tube of the construction hole channel effectively and safely.

The invention discloses a wire lifting device of an electric power rush repair tower, comprising a left connecting base (1-1), a right connecting base (1-2), an adjusting device (3) and two connecting devices, wherein the left connecting base (1-1) is connected with a left cross arm; the right connecting base (1-2) is connected with a right cross arm; the adjusting device(3) is arranged between the left and the right connecting bases (1-1, 1-2) and used for adjusting a distance between the left and the right connecting bases; the two connecting devices are arranged up and down; the adjusting device (3) is detachably connected with the left and the right connecting bases(1-1, 1-2); and the connecting devices are detachably connected with the left and the right connecting bases (1-1, 1-2). In the invention, a wire still can effectively thread the cross arms under the situation of removing a supporting bar; the use is more convenient; and the supporting bar is not needed in a practical operation, therefore the production cost is also reduced.

The invention discloses an orthoester 5-fluorouracil prodrug molecule. The orthoester 5-fluorouracil prodrug molecule is N-5-fluorouracil1-ethyl-2-carbonalkoxy-(1,3) dioxolane-4-methylformamide havinga structure as shown in formula (I) described in the specification, wherein n=2-32 and m=n+2. The invention further discloses a preparation method of the abovementioned prodrug molecule and a nanoparticle prepared therefrom and an application thereof. The orthoester 5-fluorouracil prodrug molecule, the preparation method and the nanoparticle and the application thereof have the advantages that the nanoparticle prepared by the orthoester 5-fluorouracil prodrug molecule not only has the advantages of a small molecule prodrug but also is endowed with the advantage of a nano drug delivery system(that is a drug carrier), the prodrug nanoparticle not only has excellent acid degradation property and reduced tumor cytotoxicity and realizes passive targeting enrichment of a drug in a tumor, the nanoparticle has high drug loading capacity because the drug is used as a main part of the carrier, and the nanoparticle is capable of loading other antitumor drugs and achieves the effect of cooperatively treating the tumor and thus has good application prospects in the field of tumor treatment.

The invention relates to a PE pipe extrusion molding device, which comprises a bottom plate frame, a supporting frame and an extrusion molding assembly, the supporting frame is installed in the middle of the upper end of the bottom plate frame, the extrusion molding assembly is installed on the left side of the upper end of the bottom plate frame, and the middle of the extrusion molding assembly is located at the upper end of the supporting frame. The problems are solved that when an existing PE pipe is machined, round machining cannot be effectively conducted on the interior of the PE pipe generally, so that the formed PE pipe is easily irregular, the defect that the inner wall of the PE pipe is easily rough and concaved and have bubbles and the like generally occurs, the follow-up using effect of the pipe is affected, and meanwhile when the existing PE pipe is machined, the wall thickness of the PE pipeline is generally adjusted by replacing different molds, the wall thickness of the PE pipeline cannot be accurately and conveniently adjusted, and the machining efficiency of the PE pipeline is affected.

The invention discloses a path fusion planning method for a passage area, a robot and a chip, and the robot searches candidate paths for fusion in a narrow channel with many obstacles in advance. Then, the path fusion planning method is used for fusing a heuristic search algorithm and the candidate paths meeting the search conditions to plan an overall navigation path, and map grid marking errors are overcome, so that the navigation path planning problem of a robot in a passable area where marking errors are likely to be generated due to the fact that channels in a grid map are narrow is solved.

The invention discloses a lactoferritin-modified gold-bismuth selenide quantum dot material as well as a preparation method and application thereof. The prepration method comprises the following steps: (1) preparing a Bi2Se3 quantum dot solution by virtue of a sol-gel method; (2) carrying out in-situ reduction in the Bi2Se3 quantum dot solution, so as to generate an Au-Bi2Se3 quantum dot solution;and (3) modifying the surface with lactoferritin through Au-S bond reaction, so as to obtain the lactoferritin-modified gold-bismuth selenide quantum dot material. The Lf-Au-Bi2Se3 quantum dot material with high hydrophilcity and biocompatibility and good oxidation-reduction catalytic activity is prepared by virtue of the simple method and can be effectively applied to treatment of oxidative-stress-induced diseases such as neurodegenerative diseases and relevant inflammation.

The invention relates to the field of milk powder production, and particularly discloses a milk powder formula helpful for delaying senescence and preventing hypertension, hyperglycemia and hyperlipidemia and a preparation method thereof, the raw materials of the formula milk powder comprise main materials and auxiliary materials, and the raw materials of the formula milk powder further comprise nutrient substances; the main materials comprise skim milk powder and whole milk powder. The radix polygonati officinalis extract, the radix puerariae extract, the folium mori extract and the rhizoma polygonati extract are all medicinal and edible components, so that on one hand, a health-care effect can be provided for a human body, and on the other hand, three highs can be effectively prevented; through the arrangement of nutrient substances, daily nutrient elements can be effectively provided for people, and retinyl acetate, cholecalciferol, dl-alpha-tocopheryl acetate, pyridoxine hydrochloride and L-sodium ascorbate can also provide vitamins required by a schedule for a human body and have a certain effect of delaying senescence.

The invention discloses a preparation method of in-situ nitrogen-doped mesoporous carbon nanospheres. The preparation method includes following steps: (1), dissolving chitosan in an acetic acid watersolution to obtain a solution A; (2), dissolving three-segment copolymer F127 into an alcohol solution, adding tetraethyl orthosilicate and HCl solution to obtain a solution B; (3), mixing the solution B with the solution A, stirring, standing, and adopting a spraying dryer for drying to obtain powder; (4), putting the powder obtained in the step (3) into a tubular furnace, holding temperature of380-440 DEG C under protection of nitrogen, rising the temperature to 880-920 DEG C, and calcining to obtain a carbon-silicon composite material; (5), using NaOH water solution to desilicate the carbon-silicon composite material obtained in the step (4), using deionized water to wash to be neutral, and drying to obtain the mesoporous carbon material. The method has the advantage of being capable of preparing mesoporous carbon with small pore diameter and particle size, and obtained mesoporous carbon can effectively penetrate cytomembranes and has a function of efficiently loading and releasinganticancer drug.

An antibacterial with cyclic short chain and low hematolysis has the chemical formula (A1X1A2)N and unique amino acid structure with benzene ring and positive charge.

The invention belongs to the technical field of filter elements, and particularly provides a double-filtration ultraviolet sterilization filter element which comprises a mounting mechanism, a filtering mechanism and an ultraviolet mechanism. The mounting mechanism comprises an upper pressing plate and a lower pressing plate, a plurality of supporting components are fixedly connected between the upper pressing plate and the lower pressing plate, and an ultraviolet mechanism is rotatably connected to the inner sides of the upper pressing plate and the lower pressing plate; a speed reducing motordrives a quartz tube to rotate through a fixed base; friction is generated between the quartz tube and a rubber pad on the inner side wall of the supporting box; a liquid outlet groove deforms, and agap is formed between the liquid outlet groove and the outer wall of the quartz tube; clean water can flow to the outer wall of the quartz tube, and the rubber can wipe and clean the outer wall of the quartz tube and remove dust adhered to the surface of the quartz tube. When the quartz tube rotates, the scraping plate can scrape the outer wall of the quartz tube so that the removal effect is further improved, the light transmittance is guaranteed, and the ultraviolet rays emitted by the ultraviolet lamp tube can effectively penetrate through the quartz tube to sterilize gas.

The invention discloses a smooth pipeline inner wall detecting device carrier, comprising a front transport vehicle and a rear transport vehicle. The front transport vehicle and the rear transport vehicle are all mounted with rotating shafts through a bearing. The end of the rotating shaft is fixedly mounted. The outer ring of the rotating wheel is fixed with a soft rubber tube in an annular equidistant array. The end of the soft rubber tube is integrally formed with an attaching rubber plate. The attaching rubber plate and the soft rubber tube are jointly provided with a negative pressure port. The in-pipe inspection equipment carrier designed in the invention can drive the corresponding detection device to move in the cable duct through two transport vehicles, which is capable of absorbing the inner wall of a pipe by negative pressure to perform a fixed point detection on the cable. The smooth pipe inner wall detecting device carrier can not only effectively pass through the curve area, but also adapt to the movement according to the characteristics of the pipeline. Therefore, it can effectively operate in the pipeline, which ensures the safety of the movement and can effectivelyreplace the existing manual hand-held detection.

A crisaborole sustained-release film having good absorption effects and a preparing method thereof are disclosed. The film is prepared from an active component, a plasticizer, a filler, an absorptionpromoter, a suspending aid and an adhesive. The film can overcome a problem that medicine use frequency is over-high and can provide longer skin residence time and a decreased number of times of administration. A plurality of film forming auxiliary materials, which supplement each other and which are integral, are adopted to prepare the film, the plasticizer and the filler enhance film forming performance, the absorption promoter enhances medicine infiltration capacity, the suspending aid ensures dispersibility of raw materials in a liquid state, and the adhesive enhances the degree of adhesion between the film and skin.

The invention discloses a hypochlorous acid two-photon fluorescent probe HCP and its preparation method and application. The two-photon fluorescent probe HCP has a structure as shown in structural formula I: the two-photon fluorescent probe HCP of the present invention can effectively The probe HCP can effectively and selectively image HOCl in vitro and in vivo, and can effectively cross the blood-brain barrier with targeting brain characteristics. The properties of the probe, the first in vivo and in vitro direct observation of upregulation of HOCl during KA-induced epilepsy, could be applied in the preparation of a tool for screening hypochlorous acid inhibitors. In addition, the present invention discloses for the first time that anti-epileptic inhibitors can be screened by combining high-content analysis with HCP, which will provide a simple and effective product and method for studying HOCl in biological systems and screening drugs for the prevention and treatment of epilepsy.

The invention discloses a metal substrate with high thermal conductivity, and relates to the technical field of metal substrates. The metal substrate comprises a metal layer, an Al2O3H2O(6) film, a heat-conducting insulating layer and a metal foil layer which are sequentially arranged from bottom to top, wherein the heat-conducting insulating layer is coated on the Al2O3H2O(6) film, and the heat conductivity coefficient of the Al2O3H2O(6) film is 0.2-4W/(m.K). The metal substrate is high in heat conductivity coefficient and good in dielectric property; the heat conduction substrate is ensuredto have good peeling strength, and heat can be transmitted from the middle to the outside, so that the establishment of an efficient heat conduction channel is facilitated, and thus the heat conductivity coefficient of the substrate is improved; and the heat conductivity coefficient, the dielectric constant and the dielectric loss can be adjusted by adjusting the ratio of the Al2O3H2O(6) film to the heat-conducting insulating layer.

The invention discloses a wire harness SR structure suitable for narrow space and high in assembly precision and a processing technology, the wire harness SR structure comprises a wire harness and a plug-in and is characterized in that one end of the wire harness is provided with the plug-in, the two sides of the plug-in are provided with blocking mechanisms, the outer sides of the blocking mechanisms are clamped with hardware plates, and the outer sides of the blocking mechanisms and the hardware plates are provided with SR outer molds. One end of the wire harness is fixedly installed with the plug-in, the side surface of the plug-in is clamped with the blocking mechanisms, the side surface of the wire harness is in clearance fit with the blocking mechanism,s the side surfaces of the blocking mechanisms are clamped with the hardware plates, the inner walls of the SR outer molds are bonded with the hardware plates, the blocking mechanisms and the wire harness, the plug-in comprises a rubber shell, and grooves are formed in two sides of the rubber shell. And each blocking mechanism comprises a right inner mold, clamping keys are evenly welded to the plane of the right inner mold, and a left inner mold is clamped to the outer walls of the clamping keys. According to the invention, the wire harness SR structure has the characteristics of good injection molding effect and good sealing effect.