120results about How to "Highly ordered" patented technology

The present invention relates to compositions comprising rigid-rod polymers and carbon nanotubes. The compositions comprise dispersed carbon nanotubes aligned with rigid-rod polymers. The alignment of the nanotubes and polymers can be liquid crystalline. The rigid-rod polymers of this invention include, but are not limited to, polymers and copolymers comprising benzobisazole, pyridobisimidazole and benzamidazobenzo-phenanthroline repeat units. Dispersion of carbon nanotubes is achieved by in-situ polymerization in the presence of the carbon nanotubes, which may be either single-wall or multi-wall or a combination of both. The polymer compositions comprising carbon nanotubes may be spun into fibers or formed into films. The strength of the resulting fibers of the present invention is significantly greater than that of fibers without carbon nanotubes.

A system for repairing embedded memories on an integrated circuit is disclosed. The system comprises an external Built-In Self-repair Register (BISR) associated with every reparable memory on the circuit. Each BISR is configured to accept a serial input from a daisy chain connection and to generate a serial output to a daisy chain connection, so that a plurality of BISRs are connected in a daisy chain with a fuse box controller. The fuse box controller has no information as to the number, configuration or size of the embedded memories, but determines, upon power up, the length of the daisy chain. With this information, the fuse box controller may perform a corresponding number of serial shift operations to move repair data to and from the BISRs and into and out of a fuse box associated with the controller. Memories having a parallel repair interface are supported by a parallel address bus and enable control signal on the BISR, while those having a serial repair interface are supported by a parallel daisy chain path that may be selectively cycled to shift the contents of the BISR to an internal serial register in the memory. Preferably, each of the BISRs has an associated repair analysis facility having a parallel address bus and enable control signal by which fuse data may be dumped in parallel into the BISR and from there, either uploaded to the fuse box through the controller or downloaded into the memory to effect repairs. Advantageously, pre-designed circuit blocks may provide daisy chain inputs and access ports to effect the inventive system therealong or to permit the circuit block to be bypassed for testing purposes.

Normally, when stents are bent, inside the body of the stented patient, there is head-to-head collision between facing V-points on the inside of the bend. However, by alternating between two whole numbers the number of struts between successive connectors around the circumference of each of the stenting rings, the V-points are caused to veer circumferentially in opposite directions as they approach each other on the inside of the bend, so allowing them to pass by each other without collision, thereby allowing in the same stent both close packing of the ring stack, and an enhanced ability to tolerate severe bending, after placement in the body.

The preparation process of mesoporous spherical nano SiO2 particle includes mixing deionized water, CTAB, tetraethyl metasilicate, water solution or ammonia water solution of sodium hydroxide and alcohol solvent in certain proportion; heating reaction of the mixture inside PTFE reactor with protecting stainless steel casing and set in stove with blower; filtering of the reacted solution; washing and high temperature roasting to obtain mesoporous spherical nano SiO2 particle with homogeneous size. The process of the present invention is simple, low in cost and short in production period, and the prepared mesoporous spherical nano SiO2 particle is homogeneous in size, regular in appearance and ordered in pore channel.

Organic light-emitting diode with a layer arrangement which comprises an electrode, a counter electrode and an organic layer sequence arranged between the electrode and the counter electrode, where the organic layer sequence is arranged on a metal substrate and one or several organic transport layers containing in each case an admixture for increasing the electric conductivity and which are formed with at least one of the features from the following group of features: charge carrier transporting and charge carrier injecting.

The invention discloses a preparation method of an anodized aluminum film of a through hole. The preparation method mainly comprises the following steps: after a high-purity aluminum sheet is subjected to annealing, oxide layer removing, degreasing and electrochemical polishing treatment, placing into an anodizing electrolytic cell to carry out primary anode oxidation by taking oxalic acid, sulfuric acid or phosphoric acid solution as electrolyte, after an oxide layer is removed through treatment of mixed aqueous solution of chromic acid and phosphoric acid once, the secondary oxidation is carried out under the same conditions, the residual aluminum-based substrate is removed in acid solution, and reaming is carried in the phosphoric acid, so that the anodized aluminum film of the through hole with small aperture, and the controlled aperture and thickness is obtained. According to the invention, the relatively cheap device is used, through the simpler process, a large amount of anodized aluminum films of through holes can be simply and uniformly prepared in a lossless manner, and heavy metals are not introduced in a process of removing the residual aluminum substrate, so that environmental pollution is reduced. The prepared anodized aluminum film has the advantages of good uniformity and repeatability, highly ordered nanometer pore passage, uniform period, and controlled thickness and aperture.

The invention belongs to the field of photoelectric nano-material technologies, and more specifically relates to a method used for preparing TiO2 / Cu2O nano heterojunction by composite mask method. The method comprises following steps: titanium sheets are subjected to secondary anodic oxidation so as to obtain TiO2 nanotube array thin films; the TiO2 nanotube array thin films are immersed in a compound solution of phenyltriethoxysilane and methanol, and the TiO2 nanotube array thin films with super-hydrophobicity are prepared by mask method and ultraviolet light treatment; and then Cu2O nanocrystals produced by the high-frequency impulse electrodeposition method are uniformly distributed on the surface and inner wall of the TiO2 nanotube array thin films to obtain the TiO2 / Cu2O nano heterojunction. The photoelectric property of the TiO2 / Cu2O nano heterojunction is higher than 6 to 14 times of the photoelectric property of the TiO2 nanotube array; the photoelectric property is excellent; and the TiO2 / Cu2O nano heterojunction can be used as ideal materials for solar energy photoelectric conversion and solar energy efficient utilization.

An apparatus is provided for synthesis and collection of higher order chemical compounds from lower order precursors. The apparatus includes a first silent electric discharge reactor configured to synthesize an intermediate product (e.g., disilane) from a precursor chemical (e.g., monosilane). A second silent electric discharge reactor is connected downstream of the first reactor. This second reactor is configured to convert the intermediate product into the higher order chemical compound (e.g., trisilane). Multiple condensation traps are also connected to receive effluent from the second reactor, which will generally include the compound of interest as well as unreacted precursor and intermediate product. In the illustrated embodiment, a parallel second condensation traps is also included to shunt flow and continue collection while the chemical of interest is removed for purification. Moreover, parallel second condensation traps for the intermediate product and unreacted (or recombined) precursor allow continued collection while the contents of the first traps are recycled in the reactor(s).

The invention relates to a method of preparing porous ceramic material, especially relates to a bore diameter control method by film fluid jet emulsify technique, mainly applying to the preparation of ceramic material with regular pore construction. The specific technical project is as follows: a method of preparing porous ceramic material, is characterized by: use film fluid jet emulsify technique to control and prepare mono-disperse non-polar / polar emulsion, which means: the disperse phase flows into continuous phase through fenestra of film emulsified medium and form primary emulsion in the condition of shearing force; take said primary emulsion as discontinuous phase, which flows into continuous phase in the condition of fluid jet through fenestra and forms mono-disperse emulsion; take said emulsion as mold and disperse it into non-hydrosol which changes into gel through instable poly-condensation; the gel after leaving plate is burned to get high-ordered porous ceramic material.

A phase locked loop circuit in accordance with an embodiment implements a digital phase delay quantizer to replace the analog charge-pump and phase frequency detector in an analog PLL circuit. Therefore, the built-in loop filter can be a compact-sized, high order, high bandwidth, and high attenuation digital filter as well. The digital PLL circuit takes advantage of the deep sub-micron process technology which features high speed, high resolution, compact size, and low power.

The invention belongs to the technical field of inorganic material, and specifically relates to a preparation method of a highly-ordered nano particle superlattice material. The preparation method comprises the following steps: adopting a solution method to prepare mono-dispersed metal oxide nano crystals, inducing the nano particles to carry out self-assembly through the solution evaporation to prepare a three-dimensional ordered nano crystal superlattice solid, subjecting the solid to high-temperature carbonization so as to carbonize the organic molecules on the particle surfaces to obtain carbon-coated oxide nano particle superlattice, removing the oxide nano particles through acid etching so as to obtain a highly-ordered mesoporous carbon material, taking the mesoporous carbon material as the template, pouring a proper precursor into the channels in the carbon material, and finally subjecting the carbon material to steps of hydrolysis and crystallization so as to obtain the superlattice material of corresponding nano particle. The preparation has the advantages of simpleness, easily available raw material, and low cost. The size and morphology of nano particles can be modulated by adjusting the particle size and morphology of the initial metal oxide nano particles.

The invention belongs to the technical field of alumina templates, and particularly relates to a method for preparing multilevel-structure alumina by pattern prefabrication through micro-nano ball arrangement. The method particularly comprises the following steps: 1. selecting high-purity aluminium, performing annealing, degreasing, chemical polishing pretreatment; 2. prefabricating a pattern on a pretreated aluminium sheet by micro-nano balls; 3. performing one-step anodic oxidation by using the aluminium substrate completing step 2 as an anode, using inert metal as a cathode, and using phosphoric acid as an electrolyte, selecting a proper voltage according to the morphological size of the prefabricated pattern, and finally performing pore expanding treatment to obtain an alumina template. The alumina template prepared by the method is adjustable according to the pattern structure, has a complex period, and is provided with a multilevel structure. The multilevel period structure is applicable to optical and electronic devices; with reference to properties of photonic crystals, the multilevel structure can be used to realize bandgap regulation.

The object of the present invention is to provide a carbonaceous material for an anode of a nonaqueous electrolyte secondary battery which uses a plant-derived organic material as a raw material, has high purity so that alkali metals such as the potassium element are sufficiently removed by de-mineral, and has excellent cycle characteristics, and to provide a lithium ion secondary battery using the carbonaceous material.The carbonaceous material for an anode of a nonaqueous electrolyte secondary battery is a carbonaceous material obtained by carbonizing a plant-derived organic material, the atom ratio of hydrogen atoms and carbon atoms (H / C) according to elemental analysis being at most 0.1, the average particle size Dv50 being from 2 to 50 μm, the average interlayer spacing of the 002 planes determined by X-ray diffraction being from 0.365 nm to 0.400 nm, the potassium element content being at most 0.5 mass %, the calcium element content being at most 0.02 mass %, and the true density determined by a pycnometer method using butanol being at least 1.44 g / cm3 and less than 1.54 g / cm3.

The invention provides a zinc oxide / bismuth vanadate heterojunction film with a characteristic of visible light responding, and a preparation method and applications thereof. The preparation method comprises the following steps: at first, preparing a BiVO4 precursor solution and a ZnO precursor solution, then soaking a substrate into the BiVO4 precursor solution to prepare an amorphous BiVO4 film with a certain thickness by utilizing a reverse layer-layer self assembly technology utilizing a hydroxyl layer electrostatic adsorption effect, irradiating the amorphous BiVO4 film by UV rays to form a hydroxyl layer, then soaking the substrate into the amorphous BiVO4 film to carry out secondary reverse layer-layer self assembly to form a BiVO4-ZnO amorphous film, and finally carry out crystallization at a constant temperature of 500 DEG C to obtain the zinc oxide / bismuth vanadate heterojunction film. The process is simple and controllable, the requirements on experiment conditions are low, and the prepared zinc oxide / bismuth vanadate heterojunction film has a wide application prospect in the photocatalysis field.

The invention discloses a preparation method of three-dimensional ordered titanium dioxide photonic crystal microballoons covered by silver nanoparticles, and belongs to the technical field of biomedical research, environmental monitoring and clinical detection. According to the invention, a microfluidic device is adopted to prepare three-dimensional ordered titanium dioxide photonic crystal microballoons, and then a silver nitrate water solution is adopted to generate the silver nanoparticles through high temperature reduction of a hydrothermal reaction, the silver nanoparticles are loaded uniformly on the surfaces of the titanium dioxide photonic crystal microballoons, and three-dimensional ordered titanium dioxide photonic crystal microballoon structure covered by the silver nanoparticles is generated. The prepared product has the advantages that the structure is simple in regulation and control, is good in repeatability, and is uniform in surface hotspot distribution, so that the prepared three-dimensional ordered titanium dioxide photonic crystal microballoon structure covered by the silver nanoparticles is high in detection sensitivity, is simple in operation and is relatively good in signal reproducibility when the structure is used for surface raman enhanced spectrum substrate detection, and the detection limit range of the composite material in the surface raman enhanced detection field is further improved.

The invention discloses an alloy nano-tube and a preparation method thereof, which belong to the field of nanometer material. The alloy nano-tube is a solid solution, a metal compound or an amorphous state formed by two transition metal elements, namely A and B, wherein the A accounts for 15.3 to 86.4 percent of the total amount, and the B accounts for 13.6 to 84.7 percent of the total amount. The preparation method comprises the following steps: a formwork with a layer of gold or platinum film introduced into the back side is soaked in an electrolysis bath containing metal ion A and B, and is electrodeposited under certain voltage and current conditions to obtain a binary alloy nano-tube. Binary alloy nano-tubes with different diameters, different lengths and different components can be obtained by adopting formworks with nanochannels with different inner diameters, controlling the electrodeposition time and adjusting cathode current density. The binary alloy nano-tube has simple preparation process, mild reaction conditions, strong controllability and good application prospect.

The invention relates to a preparation and purification method of bicaudal gemellus quaternary ammonium salt type cationic surfactant. The preparation method comprises the following steps in sequence: (1) metric acetonitrile is added into a dual-bottleneck distilling flask that is provided with a refluxing and condensing tube, and simultaneously, long-chain dialkyl methyl tertiary amine and relevant saturated dihalide are added thereof; (2) nitrogen is pumped for 10 to 20 minutes for deoxidizing; (3) a magnetic mixing reaction is carried through for 10 to 15 hours under the condition of 78 to 83 DEG C. after the reaction is finished, the solvent is removed by a decompression and distillation way to obtain yellowish colloid substance, then acetone is added, precipitated under low temperature, filtered and then washed twice by using the acetone, finally, white powdery solid is obtained by the vacuum drying. When the white powder is used for element analysis and hydrogen spectrum analysis of nuclear magnetic resonance, the analysis result is accordance with that of the target products. The method of the invention has cheap and easy available materials, moderate reaction condition, complete reaction and high reaction yield coefficient, which also can be carried through in common solvents, such as ethanol and so on.

The invention discloses a sulfonated cyanine dyes / hydrotalcite film with near infrared absorption and fluorescent characteristics and a preparation method thereof, belonging to the technical field of organic-inorganic composite optical function materials. The preparation method is characterized by respectively preparing the hydrotalcite colloidal solution and aqueous solution of the sulfonated cyanine dyes; and using the treated substrate with negative charges to carry out layer-by-layer assembly in the two solutions to obtain the sulfonated cyanine dyes / hydrotalcite multi-layer composite film. The composite film has the near infrared absorption and fluorescent characteristics. The sulfonated cyanine dyes carry out ordered layer-by-layer assembly with hydrotalcite nano flake laminates, thus not only enhancing the photo-thermal stability of the sulfonated cyanine dyes, but also simultaneously realizing uniform dispersion and high order of the sulfonated cyanine dyes on the hydrotalciteinterlayer molecular scale and inhibiting the cyanine dyes from aggregation by using cation order and positioning action of the hydrotalcite laminates.

A stent is described, which includes a plurality of stenting rings, each stenting ring including a plurality of struts and points of inflection, each point of inflection connecting adjacent struts, the points of inflection of adjacent stenting rings facing each other along an axis parallel to a longitudinal axis of the stent in a radially expanded stenting disposition while the stent is in an unbent configuration. Adjacent stenting rings are connected by connectors extending from a point of inflection on one stenting ring to a facing point of inflection on another stenting ring, the connectors being linear along an entire length thereof and parallel to the longitudinal axis of the stent, each of the connectors having a length shorter than a length of each of the struts.

The invention discloses a preparing process of ternary ferroelectric polymer film material, which comprises preparing a precursor solution by using dimethyl sulfoxide as solvent and ternary polymer P (VDF-TrFE-CFE) as solute, and adopting horizontal dipping method to create films and heat-treat films on LB devices, thereby obtaining polymer films which are characterized by controllable nanometer scale, ordered arrangement level and high crystallinity. The film material processed according to the method provides a platform for studying the origin of relaxation ferroelectricity. The P (VDF-TrFE-CFE) ternary ferroelectric polymer films have the properties for studying practical energy memory devices.

The invention relates to a preparation method of a Fe-based hydrotalcite-like compound, and the preparation method is as follows: first preparing a divalent metal M salt and trivalent Fe salt mixed solution, adding urea to the mixed solution, stirring until the salts are dissolved, and then reacting at 80-120 DEG C in a closed environment for 24 to 96 hours to obtain the Fe-based hydrotalcite-like compound; wherein metal M is selected from the group consisting of Ni, Mg or Co. According to the preparation method, the characteristic of uniform interior pH of the solution of an urea method, the high-crystallinity uniform-size hydrotalcite-like compound can be prepared, the preparation process of the Fe-based hydrotalcite-like compound can be simplified, the ratio of divalent and trivalent metallic element can be controllably adjusted in a certain range. The preparation method of the invention is one-step in reaction, low in cost, simple in operation, mild in reaction conditions, and in favor of further preparation of the Fe-based hydrotalcite-like compound into a thin film and a device.

A method for direct sampling of a plurality of radio bands, including a step of receiving a first radio band via a first interface and at least one additional radio band via at least one additional interface, the first radio band and the at least one additional radio band each being associated with different frequency ranges, and the first radio band or the at least one additional radio band being a DAB band. Furthermore, a selection signal is received via an interface, the selection signal indicating whether further processing of the first radio band and / or the at least one additional radio band takes place. Depending on the selection signal, the first radio band is sampled at a common sampling frequency and / or the at least one additional radio band is sampled at the common sampling frequency.

The invention relates to a quickly assembling method for a colloidal crystal with controllable layer number. The method comprises the following steps: (1) injecting ultrapure water into an open vessel, continuously and dropwise adding a polystyrene microsphere emulsion on the water surface by using a trace liquid inlet device until microspheres fully overspread the water surface; (2) performing ultrasonic oscillation on the open vessel until a densely arrayed particle layer is uniformly colorful; (3) immersing a clean substrate below the water level, pulling the substrate out of the water level by adopting a dipping pulling device, drying at the temperature of 100 DEG C so as to obtain a single-layered colloidal crystal which is highly ordered; immersing a coating film sample below the water level again, repeating the above steps so as to obtain a double-layered colloidal crystal, repeatedly performing the steps so as to obtain the highly-ordered colloidal crystal of which the layer number can be precisely controlled. The method has the characteristics of simplicity, convenience, quickness and low cost, the whole preparation process only requires 4-10 minutes, besides, the layer number can be precisely controlled, and any required layer number can be realized; the quickly assembling method provides an effective pathway for the application and industrialization of the colloidal crystal in the field of nanotechnology.

The invention discloses a preparation method of a porous anodic aluminum oxide film, which comprises the following steps: (1) pretreating the surface of pure aluminum; (2) electropolishing the pretreated pure aluminum, wherein the electropolishing solution is composed of 1,2-propanediol and perchloric acid according to a volume ratio of (9:1)-(2:1); (3) removing a nano-level porous film layer on the surface of the pure aluminum; (4) performing anodic oxidation for 1-5 hours; and (5) cleaning and drying. According to the invention, the nano-level porous film layer is formed on the surface of the pure aluminum through electropolishing by selecting the appropriate electropolishing solution and appropriate electropolishing conditions, thus greatly shortening the production cycle. Besides, a highly-ordered porous anodic aluminum oxide film can be finally obtained according to the invention.

A highly effective firearm recoil absorbing combination is obtained by providing a shoulder mountable assembly containing a viscoelastomeric thermoset polymerizate pad possessing excellent cushioning and rebounding characteristics along with sufficient surface tack to cohesively steady a firing firearm against the pad. The assembly may securely affixed to the shoulder region of a garment or detachably mountable thereto.

The invention discloses large-scale magnetic spinning equipment and a method using the equipment for manufacturing micro-nano-meter fibers. The equipment comprises a support, a feeding device, a spinning spraying device and a roller type collecting device horizontally arranged. Bar-shaped permanent magnets for providing a magnetic field are fixed to the surface of a collecting roller of the roller type collecting device. The spinning spraying device is provided with a plurality of spinning spraying heads which are uniformly arranged in a column. Injection orifices of the spinning spraying heads point to the bar-shaped permanents of the surface of the collecting roller. The spinning spraying device further comprises a spraying head drive mechanism which can drive the spinning spraying heads to do reciprocating motion in the center axis direction of the collecting roller. According to the equipment, magnetic field force replaces electric field force, under the effect of the alternating magnetic field, ferrofluid is stretched to manufacture the magnetic micro-nano-meter fibers, the high-voltage effect is not needed in the whole process, the production cost and the potential safety hazards are reduced effectively, the micro-nano-meter fibers can be produced continuously in batches, the manufactured fibers are arranged orderly, the yield is high, and the magnetic spinning equipment is suitable for mass production.

The invention relates to a preparation method for a nano SiO2 lattice on a 316L stainless steel surface. The preparation method comprises the following steps: carrying out anodic oxidization, in ethylene glycol electrolyte of perchloric acid, on 316L stainless steel, thereby obtaining 316L stainless steel with a nano hole array on surface; adding 2mol / L nitric acid into deionized water to obtain a mixture I, stirring the mixture I, adding the mixture I into a silicon source while stirring, and carrying out stirring reaction on the mixture I, thereby obtaining SiO2 sol; dropwise adding the SiO2 sol into the 316L stainless steel with the nano hole array on surface at 5-40 DEG C to obtain a mixture II, cleaning the mixture II, drying the mixture II, and roasting the mixture II under a protective atmosphere to obtain the nano SiO2 lattice on the 316 stainless steel surface. The preparation method is simple and effective, environmentally-friendly and low in cost; and obtained SiO2 nano particles are uniform in particle diameter, and are ordered in distribution; and the nano SiO2 lattice is regular and ordered in structure and high in density.