259results about How to "Fully covered" patented technology

Various intravascular stents, such as intracoronary stents, include improved expansion and connecting strut designs. Such stents can be both very flexible and fully cover vessel surface inside the vascular lumen, and be well designed for both the delivery phase and the deployed phase of the stent life cycle.

A system and methods for optimizing the performance of communication network utilizing an electrical distribution grid are disclosed. Optimization methods may include archiving historical message data and metrics from transmissions by Remote Hubs received on one or more Substation-to-Edge channels. Trends in the archived metrics over time are later analyzed to determine which combination of transmission variables such as frequency band, modulation method, drive voltage, and transmission time produce the highest message success rates overall. The results of such analysis may be used to provide feedback to the Remote Hubs or reveal necessary repairs to the network. Optimization may also be carried out locally by an individual Remote Hub by estimating the impedance of the transmission medium and adjusting either drive voltage or transmission band.

An endoluminal graft which is both expandable and supportive is provided in a form suitable for use in a branched body vessel location. The graft expands between a first diameter and a second, larger diameter. The support component is an expandable stent endoprosthesis. A liner is applied to the endoprosthesis in the form of a compliant wall material that is porous and biocompatible in order to allow normal cellular invasion upon implantation, without stenosis, when the expandable and supportive graft is at its second diameter. The supportive endoluminal graft is preferably provided as a plurality of components that are deployed separately at the branching body vessel location, one of which has a longitudinal seam defining leg portions within which the other components fit in a telescoping manner.

A system and method for inferring schematic and topological properties of an electrical distribution grid is provided. The system may include Remote Hubs, Subordinate Remotes, a Substation Receiver, and an associated Computing Platform and Concentrator. At least one intelligent edge transmitter, called a Remote Hub Edge Transmitter, may transmit messages on the electrical distribution grid by injecting a modulated current into a power main that supplies an electric meter. The Subordinate Remotes, Remote Hubs, the Substation Receiver, and the associated Computing Platform and Concentrator may contain processing units which execute stored instructions allowing each node in the network to implement methods for organizing the on-grid network and transmitting and receiving messages on the network. The Substation Receiver, Computing Platform and Concentrator may detect and infer schematic grid location attributes of the network and publish the detected and inferred attributes to other application systems including geospatial information systems maintaining the logical and physical network model.

The invention relates to a high-performance silicon-carbon cathode material and a preparation method thereof. The preparation method comprises the following steps: (1) dispersing silicon into a solvent, carrying out liquid-phase ball-milling, so as to obtain nano-silicon dispersion liquid, adding graphite, and carrying out liquid-phase ball milling so as to uniformly mix nano-silicon with graphite; (2) carrying out granulation on slurry obtained the step (1), so as to obtain graphite/nano-silicon composite particles; (3) carrying out granulation on the product of the step (2) and asphalt by virtue of a mixed kneading-pressing-crushing method, so as to obtain graphite/nano-silicon/asphalt composite particles, and carrying out mechanical fusion so as to realize spheroidization and uniform coating of the graphite/nano-silicon/asphalt composite particles in one step; and (4) carrying out carbonization, scattering and sieving, so as to obtain the high-performance silicon-carbon cathode material. The preparation method is simple and low in cost and can be used for easily producing the high-performance silicon-carbon cathode material in large scale.

Apparatus is disclosed for enclosing bales of materials with at least four substantially rectilinear sides in flexible sheet material tubes having one open end into which the bales are inserted leaving the tube open end projecting loosely beyond the end of the bale utilizing structure temporarily placed inside the tube open end tending to resist inward movement of said tube such that the tube end may be formed into pleats at the four corners of the end of the bale and structure external of the tube cooperating to form and fold the pleats against the bale end surface where they are affixed.

The invention discloses a powder-coated atomic layer deposition device. The powder-coated atomic layer deposition device comprises a powder container and a reaction cavity, wherein an inlet source hole is formed in one end of the reaction cavity; a gas inlet tube used for inputting reaction gas or carrier gas is arranged in the inlet source hole in a sealing mode; a cavity door is arranged at the other end of the reaction cavity; the powder container is arranged inside the cavity door; under driving of a power device, rotation can be realized; a gas inlet is formed in the powder container; the gas inlet tube enters an inner cavity of the powder container through the gas inlet; an ultrasonic vibrating rod is arranged inside the reaction cavity; and after the powder container enters the reaction cavity through a guide device, the outer side wall of the powder container is in contact with the ultrasonic vibrating rod. According to the powder-coated atomic layer deposition device disclosed by the invention, a rotary method is combined with an ultrasonic vibrating method, contact possibility of powder and reaction gas can be increased by rotation, and powder agglomeration can be relieved by energy generated by vibrations, so that powder is dispersed, and a uniform and compact film is finally coated on the surface of the powder.

The invention relates to a preparation method of silver-coated aluminum powder and belongs to the technical field of powder surface treatment. The preparation method comprises the steps of performing copper displacement plating and then performing silver displacement plating. In the step of performing copper displacement plating, fluoride serves as a complexing agent of aluminum ions, so that reaction of removing an oxide film from the surface of aluminum powder can be performed in a nearly neutral environment, dissolution of the aluminum powder is inhibited and deposition of the copper on the aluminum powder is promoted. In the step of performing silver displacement plating, ammonium sulfate solution serves as activating solution, potassium sodium tartrate serves as a complexing agent ofcopper, and a copper platting layer is removed by replacing silver by copper, so that the silver can be deposited on the aluminum powder. The final silver-coated aluminum powder does not contain interlayer copper and the aluminum powder is coated completely. The procedures of plating the interlayer copper and then plating the silver are adopted, so the difficulty of coating the silver on the aluminum powder is reduced.

The invention discloses a metallic oxide-coated modified doped ternary anode material and a preparation method thereof. The anode material is represented by Li (Ni0.5Mn0.3Co0.2)(1-x)SrxO2.mAl2O3, and comprises a substrate and a coating layer coating the outer part of the substrate, wherein the substrate is represented by Li(Ni0.5Mn0.3Co0.2)(1-x)SrxO2; the coating layer is Al2O3. The anode material is prepared through combining the solid phase method with the heterogeneous nucleation method. The metallic oxide-coated modified doped ternary anode material provided by the invention has higher electronic conductivity and cycling stability, the surface is uniformly and completely coated, and the preparation method is easy, controllable, low in cost and suitable for large-scale industrial production.

The invention provides a double-wall sandwich structural microcapsule self-repairing rubber and a preparation method thereof, and relates to a rubber and a preparation method thereof. The preparation method comprises the step of sequentially mixing a rubber matrix, stearic acid, zinc oxide, an accelerant, an anti-aging agent, carbon black, paraffin, a double-wall sandwich structural self-repairing microcapsule and a nano mesoporous molecular sieve in proportion, wherein the double-wall sandwich microcapsule is utilized and adopts urea-formaldehyde resin as the wall material, so that the sealing performance is high, and the manufactured walls have moderate hardness; the nano mesoporous molecular sieve utilized as a synergist is naturally inorganic filler which can improve the mechanical performance of the rubber, and a double coating brings higher heat-resisting stability, therefore, the contact probability of a repairing agent and the catalyst is greatly increased, and the influence of excessively added repairing agents and catalysts to the mechanical performance of the rubber can be avoided. Once microcrack appears in the material, a plurality of pores act to improve the capillary siphon effect of the microcrack to the microcapsule, thus the probability of the repairing agent and the curing agent to enter the microcrack is greatly increased, and as a result, the repairing effect is greatly improved.

The invention relates to a production method of color carbon fibers and belongs to the technical fields of inorganic non-metallic materials and surface treatment. The production method comprises the following steps of removing an adhesive layer and other attachment materials on the surface of the carbon fibers after ultrasonic cleaning through an organic solvent and depositing a layer of nanometer titanium dioxide thin film on the surface of the carbon fibers by an atomic layer deposition method so as to develop the carbon fibers. According to the production method of the color carbon fibers, the production process is simple and the deposition process is easy to control; the surface the nanometer titanium dioxide thin film deposited carbon fibers is rich in color, the color maintenance durability is good, and the oxidation resistance and the environmental erosion resistance of the carbon fibers are greatly improved; the cost is low, the pollution to the ecological environment is not produced, and the application prospect is broad.

A method of securely data protection for an electronic device includes the steps of: enclosing a core circuit module of the electronic within a protection element to form a protection circuit surrounding the core circuit module; operatively linking a detective circuit between the protection element and the core circuit module; and activating the detective circuit in case of a hack of the electronic device, such that when the electronic device is broken to access the core circuit module through the protection element, the detective circuit is activated to block data information saved in the core circuit module from being access.

The invention relates to a preparation method of a functionalized polyester fiber. The functionalized polyester fiber is prepared through blended spinning of functional powder coated by polyester chips and polybutylece terephthalate (PBT). A preparation method of the functional powder coated by the PBT includes that a layer of titanium catalysts is supported on the surface of the functional powder, added polybutylece terephthalate cyclic oligomer (CBT) polymerizes on the surface of the functional powder and generates PBT resin under the action of the catalysts, and the functional powder coated by the PBT is obtained after spray powdering. The catalysts for the polymerization of the CBT are supported on the surface of the functional powder through a supporting technology, the mass ratio of the PBT resin to the functional powder is (2-4):1, the mass ratio of the polyester chips to the functional powder coated by the PBT is (10-15):1, the functional powder coated by the PBT has a good compatibility with polyester, and the functionalized effects of the obtained functionalized polyester fiber are excellent.

The invention discloses a preparation method for a silicon-carbon composite negative electrode material. The preparation method comprises the steps of performing dispersing on nanometer silicon, graphite and an organic matter separately and mixing in proportion; next, performing heating and drying and heating until the temperature reaches an organic matter softening point temperature or above, and performing fusing and binding and low-temperature carbonization to obtain an organic matter cracked carbon-coated primary coating material; performing dispersing on the organic matter and the primary coating material separately and mixing in proportion; and next, performing heating and drying and heating until the temperature reaches an organic matter softening point temperature or above, and performing fusing and coating and high-temperature carbonization to obtain an organic matter cracked carbon-coated secondary coating material, namely the silicon-carbon composite negative electrode material provided by the invention. The initial reversible capacity of the negative electrode material prepared by the method can reach 649mAh/g, and the capacity retention ratio after 50 cycles can be maintained at 85.36%, and quite excellent cycling performance is shown; and in addition, the preparation method has a simple and environment-friendly process, low energy loss, rich silicon and graphite raw material resource, low cost and high safety, and is suitable for industrial production and use.

A retractable vehicle cover apparatus for covering a vehicle comprises an elongated, hollow housing, and axle disposed therein for rotation about a central axis, and an elongated cover having a proximal end coupled with the axle and also having a distal end. The housing includes wall structure having an elongated aperture defined through the wall structure. The cover is fed through the aperture for selective movement between a retracted position where the cover is wrapped around the axle, and an extended position where a substantial portion of the cover extends from the housing. The cover includes an outer layer of aligned cover strips, a middle, elastic layer and an inner layer of aligned padding strips. The elastic layer biases the cover toward a rest width substantially the same length as the aperture to facilitate extension and retraction of the cover, and permits selective expansion of the cover in order to more fully cover the vehicle.

This invention relates to a material for decorating surface of the positive of Li ionic battery and its preparation method, first of all, putting a positive powder material Li-M1M2-O(M1M2=Co Mn Ni Cr into a solution with organic substance in the concentration of 0.05-2.00mol/1 then to put the mixed substance into a heat water reactor with mixing for 0.1-4h under 150-200deg. to spray and dry the reacted solution, then a positive material is got covered uniform carbon microspheres having the advantage of high specific capacity, fine circulation performance, uniform porosity and no impurities.

The invention discloses a double-coated composite solid-state lithium manganate material and a preparation method thereof. The preparation method comprises the following steps of mixing and sinteringa lithium salt, a titanium salt, an aluminum salt and a phosphate raw material to obtain a solid-state electrolyte lithium titanium aluminum phosphate (Li <1+x> Al <x> Ti <2-x> (PO4) 3 (LATP); addingLATP, single crystal lithium manganate, a graphene oxide aqueous solution and zirconium oxide balls into a sand mill to be fully ground, nanocrystallizing the LATP and attaching the LATP to the surface of the lithium manganate, and meanwhile, coating the lithium manganate with graphene oxide; and after drying, reducing the graphene oxide into graphene at a high temperature in a hydrogen atmosphereto obtain the solid electrolyte and the graphene double-coated lithium manganate positive electrode material. According to the method, the consistency and repeatability of the material are ensured, the manufacturing cost is low, the solid electrolyte can inhibit the dissolution of manganese, the graphene blocks the reaction between the electrolyte and the positive electrode material, and the cycle performance and the high-temperature performance are improved.

The invention belongs to the technical fields of a nanometer material and lubricating oil, and discloses a surface modified nanometer material serving as a lubricating oil additive as well as a preparation method and an application thereof. The preparation method mainly comprises the following steps: putting a mixture of powder to be treated and a surface modification agent as well as grinding balls in a ball-milling tank of an improved dielectric barrier discharge plasma assisted mechanical milling device, feeding a discharge atmosphere medium, controlling the temperature of the ball-milling tank, adjusting discharge parameters, and starting the mechanical milling device so as to carry out dielectric barrier discharge plasma assisted mechanical milling, thus obtaining the surface modified nanometer material. The obtained powdery surface modified nanometer material can be added to the lubricating oil so as to improve the performance of the lubricating oil. The preparation method is simple to operate and good in controllability; the obtained surface modified nanometer material is small in particle size, high in activity, good in surface modification and extremely easy to deposit, flatly spread and diffuse on a mechanical friction surface and has excellent dispersion property in the lubricating oil, so that the friction of mechanical movement parts is reduced, and the worn surface is repaired.

The present invention relates, in general, to a headset for temporarily blocking or interrupting noise and shock waves above a preset reference level and, more particularly, to a headset for blocking or interrupting noise, which allows a user to listen to typical voices, sounds, etc. through microphones and speakers mounted on the headset, thus allowing the user to normally converse with other users even while wearing the headset, and which senses a noise above the preset reference level which may be generated in places, such as a rifle range, a hunting field, and a large-scale work place and factory where a loud noise is frequently generated, and temporarily blocks or interrupts the output of the speakers, thus preventing auditory organs from being damaged due to noise above the reference level being transmitted through the headset.