605results about How to "Improve migration ability" patented technology

A solid-state imaging device includes a substrate having a first surface and a second surface, light being incident on the second surface side; a wiring layer disposed on the first surface side; a photodetector formed in the substrate and including a first region of a first conductivity type; a transfer gate disposed on the first surface of the substrate and adjacent to the photodetector, the transfer gate transferring a signal charge accumulated in the photodetector; and at least one control gate disposed on the first surface of the substrate and superposed on the photodetector, the control gate controlling the potential of the photodetector in the vicinity of the first surface.

Protective self aligned buffer (PSAB) layers are layers of material that are selectively formed at the surface of metal layers in a partially fabricated semiconductor device. In a Damascene interconnect, PSAB layer typically resides at an interface between the metal layer and a dielectric diffusion barrier layer. PSAB layers promote improved adhesion between a metal layer and an adjacent dielectric diffusion barrier layer. Further, PSAB layers can protect metal surfaces from inadvertent oxidation during fabrication process. A PSAB layer may be formed entirely within the top portion of a metal layer, by, for example, chemically converting metal surface to a thin layer of metal silicide. Thickness of PSAB layers, and, consequently resistance of interconnects can be controlled by partially passivating metal surface prior to formation of PSAB layer. Such passivation can be accomplished by controllably treating metal surface with a nitrogen-containing compound to convert metal to metal nitride.

A molecular sieve containing composition, which can be applied in catalytic cracking reaction for producing more ethylene and propylene, and its preparation method. The composition contains a pentasil-type molecular sieve having a SiO2/Al2O3 molar ratio of 15-60, prepared by activation and modification with phosphorus, alkaline earth metal and transition metal. The composition essentially includes 85 DIFFERENCE 98% wt of pentasil-type molecular sieve, 1 DIFFERENCE 10% wt of P2O5, 0.3 DIFFERENCE 5% wt of alkaline earth oxide, and 0.3 DIFFERENCE 5% wt of transition metal oxide. The molecular sieve structure and active centers have high thermal and hydrothermal stability. The salient feature of this composition is that when applied as an active component of cracking catalyst for catalytic pyrolysis process, the yield of ethylene is above 18% and the total yield of ethylene and propylene is more than 40%.

Capping protective self aligned buffer (PSAB) layers are layers of material that are selectively formed at the surface of metal layers in a partially fabricated semiconductor device. Encapsulating PSAB layers are formed not only at the surface of the metal layers, but also within the unexposed portions of the metal lines. Encapsulating PSAB layer, for example, can surround the metal line with the PSAB material, thereby protecting interfaces between the metal line and diffusion barriers. Encapsulating PSAB layers can be formed by treating the exposed surfaces of metal lines with GeH₄. Capping PSAB layers can be formed by treating the exposed surfaces of metal lines with SiH₄. Interconnects having both a silicon-containing capping PSAB layer and a germanium-containing encapsulating PSAB layer provide good performance in terms of adhesion, resistance shift, and electromigration characteristics.

The invention discloses a portrait style transfer method based on semantic segmentation and a deep convolutional neural network. The method comprises the steps of firstly, selecting a portrait image needed to be converted and a target style portrait image; secondly, carrying out semantic segmentation on the two images to obtain a portrait area and a background area; thirdly, segmenting out the specific five sense organs from the portrait area; fourthly, defining a portrait style transfer loss function; fifthly, adopting the deep convolutional neural network VGG-19 as an image advanced style extraction basic model; sixthly, after a content constraint layer and a style constraint layer is set, defining the content constraint layer and the style constraint layer in the VGG-19 model; and finally, establishing a new model structure. The segmented semantic image and the original image are input to the new VGG-19 model; the advanced style features and content features of the image are extracted; the portrait style transfer loss function is used; by adopting a gradient descent method, the loss function is minimized through multiple iterations; and finally a style transfer result image is generated.

The invention discloses a process for reserve recycling and preparation of lithium nickel cobaltate from a waste lithium battery as a raw material, and belongs to the field of waste lithium battery recycling. According to the process disclosed by the invention, an anode material of the waste lithium ion battery is recycled, a new lithium nickel cobaltate anode material is synthesized by means of a reserve recycling process, the regenerated anode material meets the performance requirements for native products, and resource utilization is achieved; the prepared primary product of lithium nickel cobaltate is treated by using a reducing metal powder so that the obtained lithium nickel cobaltate has oxygen vacancy; LiNixCo1-xO2-y is obtained, wherein x is not less than 0.33 and not more than 0.67, and y is not less than 0.05 and not more than 0.5; the oxygen vacancy can be used for enhancing the migration capacity of lithium ions in the lithium nickel cobaltate crystal structure and enhancing the discharge capacity of the battery. The reducing metal powder adopted by the process disclosed by the invention has the advantages that the synthesis process can be simplified and the cost for preparing the oxygen vacancy can be reduced.

The invention belongs to the technical field of nano material preparation and relates to a silica micropowder loaded type nano zerovalent iron particle and a preparation method thereof. The method comprises the following steps of: (1) preparing modified silica micropowder; (2) removing oxygen; (3) preparing a nano iron solution; and (4) preparing nano zerovalent iron particles. In the invention, a liquid-phase reduction method is adopted to prepare the silica micropowder loaded type nano zerovalent iron particles, and a strong reducing agent KBH4 or NaBH4 is used for reducing Fe<3+> to obtain Fe<0>; loading is carried out through the silica micropowder to ensure that the agglomeration resistance of the nano zerovalent iron particle is greatly improved; the prepared nano zerovalent iron particles are uniformly distributed and have small mean grain size and large specific surface area; and the pollutant removal capacity of the nano zerovalent iron particles is far higher than that unloaded nano iron, and the nano zerovalent iron particles have stronger mobility in simulated soil, and can be widely applied to the field of environmental modification.

The invention relates to the technical field of adipose mesenchymal stem cells in the technical field of cell therapy, in particular to a method for enhancing an immune regulating function and a migration capacity of adipose mesenchymal stem cells. Primary culture and secondary culture are performed to the adipose mesenchymal stem cells obtained through separation, and then short-time culture is performed by using culture medium containing low-concentration TLR3 activator Poly(I:C). After Poly(I:C) co-stimulation culture is performed, the obtained adipose mesenchymal stem cells with a brand new phenotype have a stronger migration capacity, the levels of secreting cytokine and chemotactic factor are changed and a stronger immunosuppressive function is reflected on the whole.

The invention discloses a perovskite-based thin film solar cell and a preparing method thereof. The perovskite-based thin film solar cell comprises a hole transfer layer, wherein the hole transfer layer comprises a polymer capable of conducting hole transfer and graphdiyne dispersed in the polymer. In the perovskite-based thin film solar cell, a perovskite material adopted for an absorbing layer generates excitons by absorbing sunlight and separates the excitons into electrons and holes, the electrons are collected through a dense layer which is made from a semiconductor material and guided out to an external circuit through a conductive layer, and the holes are collected through the hole transfer layer and guided out through electrodes. According to the perovskite-based thin film solar cell and the preparing method thereof, the graphdiyne is dispersed in the polymer capable of conducting hole transfer to form a polymer-graphdiyne composite material which serves as the hole transfer layer of the perovskite-based thin film solar cell, and compared with a tradition perovskite-based thin film solar cell only comprising a polymer hole transfer layer, the perovskite-based thin film solar cell has the advantages that the hole transfer ability of the hole transfer layer is improved, and the conversion efficiency of the solar cell is improved.

The forced web page pushing out method includes utilizing AC as web site deputy and re-orienting URL to URL of WEB-PORTAL server in the client end. The present invention makes it possible for the user inputting any URL to enter the web page of WEB-PORTAL server directly simply. The present invention is also suitable for client end having distributed IP address via DHCP or set static IP address.

The invention discloses a MoSe ₂ Nanosheet Composite Firework-like TiO ₂ Nanorod arrays, which include TiO ₂ Nanorod arrays and MoSe ₂ nanosheets; the MoSe ₂ nanosheets are uniformly and massively distributed in the TiO ₂ The surface of the nanorod array has good recombination on the array surface; the TiO ₂ Nanorod arrays are made of TiO ₂ self-assembled nanorods. The present invention also discloses that the MoSe ₂ Nanosheet Composite Firework-like TiO ₂ Fabrication of nanorod arrays using a two-step solvothermal method to make MoSe ₂ Nanosheets uniformly grown on fireworks-like TiO ₂ On the nanorod array, a material with good composite morphology is obtained. The prepared semiconductor material has increased spectral absorption range and specific surface area, reduced carrier recombination probability, good photocatalytic degradation performance, and has great application potential in the field of photocatalytic degradation. The preparation method of the invention has the advantages of simple operation, high yield, low preparation cost and the like.

Protective self aligned buffer (PSAB) layers are layers of material that are selectively formed at the surface of metal layers in a partially fabricated semiconductor device. In a Damascene interconnect, PSAB layer typically resides at an interface between the metal layer and a dielectric diffusion barrier layer. PSAB layers promote improved adhesion between a metal layer and an adjacent dielectric diffusion barrier layer. Further, PSAB layers can protect metal surfaces from inadvertent oxidation during fabrication process. A PSAB layer may be formed entirely within the top portion of a metal layer, by, for example, chemically converting metal surface to a thin layer of metal silicide. Thickness of PSAB layers, and, consequently resistance of interconnects can be controlled by partially passivating metal surface prior to formation of PSAB layer. Such passivation can be accomplished by controllably treating metal surface with a nitrogen-containing compound to convert metal to metal nitride.

The invention discloses a reconnaissance type obstacle-surmounting machine snake, and belongs to the field of robots. Because the conventional wall climbing robots cannot surmount walls of 90 degrees, the conventional wall climbing robots are difficult to move a single step on modern buildings in a common right-angle design; the capability of surmounting obstacles is weak, so that the conventional wall climbing robots cannot perform search, inspection and maintenance tasks at dangerous locations, and the application range is narrow. In order to overcome the defects of the conventional wall climbing robots, the wall climbing machine snake is designed by combining a snake-shaped robot which is high in stability, small in cross section, and high in flexibility. The machine snake can simulate a snake to raise the head and swing the head. The machine snake can raise the head like the snake, so that the machine snake can freely turn on walls of different angles, and the mobility is high. The machine snake walks by adopting wheels, and a buffering torsion spring is arranged at each joint, so that the turning accuracy is guaranteed. On the aspect of adsorption, the machine snake is adsorbed on a wall by utilizing a vacuum negative pressure theory; through comparison and analysis, a base structure is designed, so that the adsorption is firmer. A camera can rotate 360 degrees.

The invention provides water-based ink resin for PVC furniture membranes and a preparation method of the water-based ink resin. Raw materials of the water-based ink resin for the PVC furniture membranes comprise an anionic emulsifier, a nonionic emulsifier, a pH buffering agent, an initiator, a chain transfer agent, a methyl methacrylate monomer, a methyl acrylate monomer, a glycidyl methacrylate monomer, tert-butyl hydroperoxide, rongalite, a preservative, and deionized water; based on a design concept of ''polymer welding'', an emulsion-type resin which is well compatible to PVC and of which glass transition temperature is similar to that of the PVC is prepared and designed, wherein the main body of the emulsion-type resin is poly(methyl methacrylate-methyl acrylate), and the high peeling strength of the water-based ink resin and the PVC furniture membranes is guaranteed; and meanwhile, a characteristic that the PVC furniture membranes have a large number of plasticizers is combined, a proper amount of the glycidyl methacrylate monomer with epoxy groups is introduced to a copolymerization monomer system, and therefore the plasticizer migration resistant ability of the water-based ink resin is improved.

The invention provides an electrophotographic laminated film and a method for producing the electrophotographic laminated film. The electrophotographic laminated film comprises a substrate and at least one of a coating layer and a function control means provided on a surface of the substrate. The uppermost layer of the coating layer has a surface resistance in a range of 1.0×10⁸ to 1.0×10¹³ Ω/□. The surface of the substrate preferably comprises at least one of a polycarbonate resin and a polyallylate resin. At least one of the coating layer and the function control means is preferably formed by providing a coating liquid. Further, a solvent contained in the coating liquid is preferably permits at least one of the coating layer and function control means to be formed while dissolving the surface of the substrate.

The invention discloses an adversarial face image generating method and device. The method relates to adversarial attacks in the field of computer security, and comprises the steps of obtaining a reference face image and an adversarial face image; through a pre-trained target face recognition model, extracting feature maps under multiple scales from the reference face image and the adversarial face image respectively; performing fusion processing on the feature maps of the reference face image under multiple scales to obtain feature information of the reference face image; performing fusion processing on the feature maps of the adversarial face image under multiple scales to obtain feature information of the adversarial face image; calculating a loss value of the feature information of thereference face image and the feature information of the adversarial face image; and based on the loss value, iteratively adjusting the pixel value of each pixel point in the adversarial face image toobtain a target adversarial face image. According to the invention, the versatility and mobility of the adversarial face image on the face recognition model can be improved by fusing the feature mapsof the adversarial face image under multiple scales.

The invention discloses a confrontation learning-based method for generating image confrontation verification codes. The method comprises the following steps of: (1) selecting an image recognizing neural network A and an attack algorithm a; (2) generating an image confrontation verification code on the basis of a confrontation learning method according to the trained image recognizing model A andthe attack algorithm; (3) selecting one or more image recognizing models B, selecting one or more attack algorithms b, cracking the image confrontation verification code generated in the step (2) according to the image recognition model B and the attack algorithm b and adjusting a generation strategy of the image confrontation verification code according to the cracking result; and (4) generatingan image confrontation verification code according to the adjusted generation strategy of the image confrontation verification code. The invention also discloses a system for generating the image confrontation verification codes. The method disclosed by the invention has the beneficial effects that a small amount of special noise is added to an image verification code through confrontation learning to attack a depth image recognizing model and the security of the image verification code is protected in the manner of weakening the attack ability of a verification code cracker.

The invention relates to ultralow temperature discharge electrolyte of a novel lithium ion battery. The electrolyte comprises the following raw materials in percent by weight: component A, namely 10-15 percent of conductive lithium salt, component B, namely 80-90 percent of organic solvent and component C, namely 2-8 percent of additive. The electrolyte has extremely high electrochemical stability. The freezing point is lowered, the ion migration capability is improved, the electrical conductivity is improved, the lithium ion transfer resistance is reduced, and the wettability of the electrolyte on a diaphragm under low-temperature conditions and the penetrability of the lithium ion to the diaphragm are improved. Therefore, the electrolyte has the characteristics of being capable of normally working in an environment with temperature of 50 DEG C below zero and being stable in performance and excellent in cycle indicators.

The invention belongs to the field of heavy metal pollution remediation in polluted environment, the invention discloses a method for improving stabilization efficiency of nanometer zero-valent iron in a heavy metal composite polluted soil. The method comprises the following steps of (1) preparing for the modified nanometer zero-valent iron; (2) stabilizing treatment of the modified nanometer zero-valent iron on the heavy metal composite polluted soil; and (3) evaluating a stabilization effect; the method is characterized in that sodium carboxymethylcellulose is adopted to modify the nanometerzero-valent iron, the agglomeration of the nanometer zero-valent iron is reduced through utilizing a steric hindrance effect and an electrostatic steric effect to increase the dispersity of the nanometer zero-valent iron and the mobility of the nanometer zero-valent iron in the soil. According to the method, the stabilizing efficiency of the modified nanometer zero-valent iron to heavy metals inthe heavy metal composite polluted soil is improved; and the method is simple to operate, high in repairing efficiency, low in repairing cost and free of secondary pollution to the environment.