30results about How to "Eliminate penetration" patented technology

A horizontal bore cryogenic drilling method includes in a first embodiment forming a pilot hole of a first select diameter along a desired path of the horizontal bore. A grindable casing is inserted into the guide bore. A cryogenic fluid is flowed through the grindable casing to form a freeze zone of frozen moisture adjacent the grindable casing having a second select diameter. A primary bore is formed having a third select diameter greater than the first diameter and less than the second select diameter within the freeze zone along the desired path of the horizontal bore with the grindable casing in place. The second diameter is selected to be sufficiently greater than the third select diameter to prevent collapse of the freeze zone. Another embodiment of the invention is a method of forming a horizontal bore in an earth formation including providing a drill string having a conduit communicating with a cutting tool for engaging the earth formation. A cryogenic fluid is flowed through the conduit and the cutting tool to drive the cutting tool and remove cuttings from a bore formed by the cutting tool. The cutting tool is directed into an earth formation and a freeze zone is formed in the earth formation in advance of the cutting tool by the cryogenic fluid flowing through the cutting tool. The cutting tool is then advanced into the earth formation to form the horizontal bore at a rate enabling continuous formation of a freeze zone in advance of the cutting tool of sufficient diameter to prevent collapse of the bore as the cutting tool is advanced.

A solvent-based solution including methods of making and using for treating and protecting for heavy traffic asphalt pavement, particularly against water-associated problems, such as repeated freeze / thaw cycles, and damage caused by exposure to UV light. The mechanism of protection include an internal coating and partial internal sealing of voids and pores with a special blend of pre-oxidized asphalt emulsion that has been modified with moisture-insensitive silicone-based compounds and surfactants to enhance penetration depth and effectiveness. The sealer works from within the asphalt pavement as well as at the surface. A water-repelling function prevents water from penetrating from the surface while allowing vapor transmission across the pavement through connected voids and capillaries. The sealer should also enhance the bonding strength between asphalt coated particles, thus eliminate chipping. As a result, the sealer should prolong the life of exiting and of new asphalt pavement as well as reduce maintenance cost.

A device for drug release including a drug reservoir including a gate, wherein opening of the gate releases a drug stored in the drug reservoir, an electronic command and control (C & C) unit in communication with the gate that produces a gate bias voltage and time profile supplied to the gate for controlling opening of the gate, and a power source for supplying power to the electronic command and control unit.

The invention provides a welding process of a copper stranded cable. The welding process comprises the following procedures: cutting off the cable; fixing and binding end parts; carrying out hot-pressing molding; welding; and cleaning. In the hot-pressing molding procedure, a pressure shaping process is adopted at a high temperature, namely, the fixedly bound end parts are heated to about 800 DEG C by an oxygen torch, and then the end parts are pressed by hammering with an iron hammer or other tools to form an oblate or semicircular shape or other shapes for facilitating the end parts to be welded with a welding connection piece. By means of the process, an ideal shape of the end parts of the cable can be obtained for the welded section of the cable, thus ideal welding quality can be obtained; and welding addition materials can be saved.

The invention discloses a high-definition video connector with good shielding effect and a use method thereof, relates to the technical field of high-definition video connectors, and aims to solve the problem that the magnetic shielding effect of the existing high-definition video connector is poor. The outer shell is composed of a permalloy inner shell, an eddy current shielding layer and an insulating rubber, and the eddy current shielding layer is fixed between the permalloy inner shell and the insulating rubber, the lower end of the outer shell is fixedly provided with a fixing block, and the outer shell An inner cavity is arranged inside, and a converging mechanism is fixedly installed at the middle position inside the inner cavity. A joint is installed at the lower end of the inner cavity, and a terminal is installed at the rear end of the joint. Both sides of the bottom of the joint Both sides are fixedly provided with slide rails, both sides of the rear end of the housing are provided with slide grooves, a shielding bottom plate is installed inside the fixed block, fixed columns are fixedly installed on both sides of the upper end of the fixed block, and the fixed column There are fixed bolts installed inside.

The invention discloses a quaternary pyridine salt type alkaline or alkalescent polymer membrane, which is used as a membrane material of a direct alcohol fuel cell. The quaternary pyridine salt type alkaline or alkalescent polymer membrane is produced from polymer materials which are subjected to membrane formation, quaternization reaction and alkalization reaction. The polymer materials are polymer materials produced by pyridine quaternization and a blend prepared from the polymer materials and polyvinylidene fluoride, bisphenol A polyethersulfone, polyether-ether-ketone, polyethersulfone, polyethersulfoneketone, poly(phthalazinone ether ketone), poly(phthalazinone ether sulfone) or poly(phthalazinone ether sulfone ketone) and so on which are blended. A direct methanol fuel cell (AMDMFC) adopting the quaternary pyridine salt type alkaline or alkalescent polymer membrane works under alkaline or alkalescent conditions, has the advantages of improving the oxidation reaction rate of methanol, eliminating the methanol permeation caused by electric dragging, widening the selection range of catalysts (including the catalysts of anodes and cathodes) and cell materials, simplifying watermanagement and so on.

The invention discloses a depth-based cavity repairing method in viewpoint synthesis. The method comprises steps as follows: (1) performing depth edge one-way expansion preprocessing on an input reference depth map to eliminate inter-infiltration of a foreground pixel and a background pixel in a synthesized virtual viewpoint view; (2) performing pixel mapping transformation by using the preprocessed reference depth map and an original reference view to obtain a virtual viewpoint view with a cavity and a virtual viewpoint depth map; (3) repairing the cavity in the virtual depth map with a pixel-based image repairing method in combination with the relative position relation between the foreground and the background around the cavity in the virtual viewpoint depth map; (4) repairing the cavity in the virtual viewpoint view with an improved sample-based image repairing method in combination with the repaired virtual viewpoint depth map. With the adoption of the method, the virtual viewpoint view with better quality can be obtained, the continuity of image edges can be better kept, and the inter-infiltration of the foreground and background pixels can be eliminated.

This invention provides an oil-product on-line optimized mixing method including a basic control system controlling flow of each component and an optimized control system with intelligent operation connecting to it via an interface, a sample device and a near infrared on-line analyzer analyzing the sample characterizing in including the following technological steps: before analyzing the sample by the near infrared on-line analyzer, the sample is pre-processed including a constant temperature process and water remove process. The invention also provides an oil-product on-line optimized mixing system.

A method and structure for a method of manufacturing a device having different types of transistors, wherein gates of the different types of transistors in the device comprise different materials. The method comprises depositing a silicon layer on a gate dielectric layer, depositing a first-type gate material on the silicon layer, removing the first-type gate material from areas where a second-type gate is to be formed, depositing a second-type gate material on the silicon layer in areas where the first-type gate material was removed, and simultaneously patterning the first-type gate material and the second-type gate material into first-type and second-type gates, and anneal and transform the two types of gate materials.