2025results about How to "Broaden your options" patented technology

In a multilayer wiring board comprising a core board, and a wiring layer and an electrically insulating layer that are stacked on one surface of said core board, a thermal expansion coefficient of said core board in XY directions falls within a range of 2 to 20 ppm, a core member for said core board is a core member selected from silicon, ceramics, glass, a glass-epoxy composite, and metal, said core board is provided with a plurality of through holes that are made conductive between the front and the back by a conductive material, and a capacitor is provided on one surface of said core board, wherein said capacitor comprises an upper electrode being the conductive material in said through hole, and a lower electrode disposed so as to confront said upper electrode via a dielectric layer.

The invention discloses konjac jelly powder. The konjac jelly powder comprises the following components in part by weight: 30 to 40 parts of konjac powder, 10 to 25 parts of carrageenin, 0 to 10 parts of xanthan gum, 0 to 15 parts of locust bean gum, 0 to 20 parts of guar gum, 5 to 12.5 parts of sodium citrate, 8 to 15 parts of potassium chloride, 0 to 7 parts of xylitol and 2 to 5 parts of citric acid. A method for preparing jellies by using the konjac jelly powder comprises the following steps of: mixing the konjac jelly powder and white granulated sugar uniformly; pouring the mixed white granulated sugar and konjac jelly powder into a stirred cold water proportioning cylinder; continuously adding the white granulated sugar or syrup, opening steam and heating; and performing filtration, packing and sterilization to obtain konjac jelly finished products. The konjac jelly powder provided by the invention has low production cost, adjustable taste and high dietary fiber content; the prepared konjac jellies do not need to be treated by alkali; and the method for preparing the jellies by using the konjac jelly powder has simple making process and low making cost.

The invention discloses a theme word vector and network structure-based theme keyword extraction method, and particularly relates to the technical field of extracting keywords from texts. The theme word vector and network structure-based theme keyword extraction method comprises the following steps of: carrying out theme clustering on a text corpus on the basis of an LDA theme model, and obtaining100 keywords, relevancies of which with each theme are top 100 in the theme; expressing each word in the text corpus as a word vector by utilizing word2vec, obtaining a semantic similarity between every two words through calculation, and respectively calculating 5 words, semantic similarities of which with each keyword in the keywords are top 5, wherein the keywords and the words, the semantic similarities of which with each keyword are top 5 form a new keyword set; and constructing a keyword network and obtaining the top 20 words in each set to serve as keywords of the theme. According to the method, keywords which have relatively high word frequencies in documents can be extracted, and keywords which have relatively word frequencies and are strongly associated with themes can be effectively discovered.

A system for growing plants in adverse circumstances is composed of a great container for growing plants in it, the matrix loaded in said great container, and a water storing and controlling unit communicated via water tube with water tank and arranged in said great container for contacting with said matrix.

The invention belongs to a material with a micro / nano composite structure, and particularly relates to a core / shell fiber with a nanowire-embedded microtube structure and a preparation method thereof. The core / shell fiber is characterized in that independent nanowires are embedded in a microtube with a micron-level hollow tubular structure; and the microtube material and the nanowire material arethe same or different polymer materials or inorganic oxide materials. The preparation method provided by the invention is a three-fluid coaxial electrostatic spinning method, wherein three stainless steel spray tubes with different thicknesses are coaxially assembled into a spinneret, and corresponding liquid is respectively introduced into each spray tube through a liquid supply system to carry out composite electrospinning, thus forming a fiber with a three-layer core / shell structure; and moreover, the middle-layer material is removed to leave the hollow tubular structure, thus obtaining the core / shell fiber with a nanowire-embedded microtube structure. The three-fluid composite electrostatic spinning method provided by the invention is more suitable for the preparation of the core / shell fiber.

The invention discloses a method for obtaining a temperature-sensitive sterile line by performing site-specific mutagenesis on P / TMS12-1 through a CRISPR (clustered regularly interspaced short palindromic repeats) / Cas9 system. The method comprises the following steps: cloning and controlling a Pei'ai 64S temperature-sensitive sterile major gene P / TMS12-1 fragment; designing a target sequence according to the P / TMS12-1 sequence; constructing a pU3-gRNA carrier of the target-containing sequence fragment; constructing a pCRISPR / Cas9 carrier; obtaining a positive transgenic seedling by utilizing the pCRISPR / Cas9 carrier containing the target sequence fragment; screening a mutant plant from the positive transgenic seeding; performing subculture planting on the mutant plant to obtain the temperature-sensitive sterile line without transgenic components. According to the method disclosed by the invention, the CRISPR / Cas9 system is utilized to completely inactivate P / TMS12-1 non-coding RNA, and the temperature-sensitive sterile line without transgenic components is artificially cultivated. The method disclosed by the invention has the advantages of being strong in purposiveness, small in genome damages and capable of avoiding transgenic interference.

The invention discloses an intelligent sales terminal with an online shopping function, a sales system and a method. Disclosed by the invention is an intelligent safe sales terminal, a sales system and an implementation method which are based on network technologies, not only can carry out shopping on a local sales terminal, but also can order goods through the network. The intelligent sales terminal comprises a microprocessor, a man-machine interface module, a storage device, a network communication interface and a local communication interface, wherein the man-machine interface module, the storage device, the network communication interface and the local communication interface are connected with the microprocessor; and the man-machine interface module comprises a display screen and a device used for data input. The sales system comprises the intelligent sales terminal and a remote shopping website. The sales system also can comprise an automatic replenishment system and a remote server. The intelligent sales terminal with the online shopping function, the sales system and the method are easy to implement and can provide great convenience for shopping of customers.

The invention provides a method and system for returning of an unmanned plane. Automatic returning of the unmanned plane can be realized after a user clicks a button. The method comprises: obtaining a coordinate of a take-off point after the unmanned plane takes off; planning a flight path and obtaining coordinates of passing points in the flight in real time to form flight path information; receiving a return command from a hand-held terminal; calculating a return path from a coordinate of a present position to the coordinate of the take-off point according to the coordinate of the present position, the flight path information, and the coordinate of the take-off point of the unmanned plane; and controlling the unmanned plane to return along the return path and to land.

A driving support system for giving a support to a driving operation of a vehicle includes a drive history database and a drive teaching unit for specifying a travel route of a vehicle subjected to a driving support. Vehicle information including information about vehicle operation is associated with pertinent route information and is registered as a drive history in the drive history database. The drive teaching unit is configured to extract a drive history corresponding to the specified travel route from the drive history database. The drive teaching unit is further configured as a guide for the driving support to teach information about the extracted drive history to a driver of the vehicle subjected to the driving support.

The invention discloses a cloud storage system for providing cloud storage service for users. The cloud storage system is characterized by comprising a cloud storage service provider (103), a primary agent node (102), a secondary agent node and a storage cloud (105), wherein a user sends a service request, the primary agent node selects the service scheme provided by the configuration of the optimal cloud storage service provider according to the request, and the secondary agent node selects the storage center in the data storage cloud to realize the cloud storage service. The invention also provides a data deployment method of the cloud storage system, which is used for deleting, modifying or adding user data. The invention can support services provided by multiple cloud storage service providers to accelerate the response speed of service used by the users, and can dynamically configure a bottom storage architecture according to the characteristics of the users, thereby simultaneously having the advantages of a master-slave mode architecture and a peer to peer storage architecture.

The invention discloses a 3D printing device suitable for multi-material workpieces. The 3D printing device comprises three-dimensional moving structures, a workbench, a rotary plate type sprayer switching device, a feeding system and a control system. The three-dimensional moving structures comprise the X-axis moving structure, the Y-axis moving structure and the Z-axis moving structure. The workbench is fixedly connected with the X-axis moving structure and is driven by the X-axis moving structure and the Y-axis moving structure to perform horizontal motion and driven by the Z-axis moving structure to perform vertical motion. The rotary plate type sprayer switching device comprises a rotary plate and a motor; multiple segmented screw rod sprayer devices are mounted on the rotary plate in the circumferential direction, and the rotary plate is driven by the motor to rotate for switching. The feeding system is used for providing pulp for the segmented screw rod sprayer devices. The control system is used for controlling the movement of the three-dimensional moving structures and the rotary plate and extrusion of the pulp in the segmented screw rod sprayer devices. According to the 3D printing device, the selecting range of processing materials is expanded, and the 3D printing device has the advantages of being high in work efficiency, low in production cost and the like, and can effectively reduce material hysteresis and flowing phenomena.

User scheduling used in a downlink multiple-input-multiple-output (MIMO) transmission, including with respect to each of user groups in which the users having the same Precoding Matrix Indicator (PMI), causing to complement each other based on a predetermined scheduling rule, according to the information fed back by the users in a single-user feedback manner of the SU-MIMO, to form a candidate user set; and selecting a scheduled MU-MIMO transmission user set from all the candidate user sets. User feeding back and user selection and scheduling used in a downlink MIMO transmission is further provided and includes selecting and scheduling, based on a predetermined scheduling rule, according to at least two CQIs fed back by each user, so as to determine a scheduled MU-MIMO transmission user set.

The invention discloses a three-dimensional (3D) printing method of a micro-nano structure based on near-field electrostatic spinning. According to the method, a layered manufacturing principle of a 3D printing technology is combined with a near-field electrostatic spinning droplet or micro-nano fiber filament forming control technology. The method comprises the following steps: firstly, designing a part model through a computer, and processing contour data and padding data of the model to obtain relative movement data of a spray nozzle and a receiving platform; secondly, preparing micro-nano liquid flow or micro-nano fiber filaments from material liquid by controlling factors such as voltage, receiving distance, flow speed, temperature and humidity; thirdly, orderly stacking the micro-nano liquid flow or the micro-nano fiber filaments through the relative movement of the spray nozzle and the receiving platform; and finally, performing layered manufacturing and layer-by-layer stacking to further form and manufacture the micro-nano structure. According to the method, the micro-nano structure can be quickly manufactured in a multi-material and low-cost manner.

The invention discloses a high-strength lamellar Al-based metal ceramic composite material and a preparation method thereof, aiming at solving the problems of high preparation cost, complex operation, single type of reinforcement ceramic and low strength. The high-strength lamellar Al-based metal ceramic composite material, i.e., high-strength lamellar structure Al-Si-Mg / (Al2O3, SiC, TiC) composite material comprises ceramic powder and Al-Si-Mg alloy. The volume fraction of ceramic powder is 20%-40vol%; the volume fraction of Al-Si-Mg alloy is 80%-60vol%; the mass ratio of aluminum in the Al-Si-Mg alloy is 75-84wt%; the mass ratio of silicon is 10-15wt%; the mass ratio of magnesium is 6-10wt%. The preparation method of the high-strength lamellar Al-based metal ceramic composite material comprises the following steps: preparation of water-based ceramic slurry; directional solidification; freezing and drying; sintering of blanks; smelting of alloy; and non-pressure infiltration.

Intelligent disinfecting equipment is an ultralow-volume, intelligent and three-dimensional disinfecting device composed of a medicine applying device, a central control device, an external interaction device, a walking device, a power supply device and a rack. When 5-100 micrometers of ultramicro medicine particles containing effective disinfecting components are conveyed to a disinfecting environment through an airflow conveying device of the disinfecting device, the disinfecting operation process is completed under cooperation of the central control device containing a motion control module, a data module and a task management module, the external interaction device and the power supply device; preparation, analysis and comparison of whole disinfecting operation, environmental meteorological data acquiring and automatic collection, recording, storage and transmission of data of operation control and the operation process can be achieved through the Internet of Things and cloud computing in the disinfecting process; disinfection, management and monitoring are timely and are synchronized and integrated. The intelligent disinfecting equipment saves medicine, water and labor, and automation, standardization, formulation and menulizing of the disinfecting operation can be achieved.

There is provided a lens formed from a circular bottom face (11), lateral face (14) and top face (15) and having a surface light source (13) of a finite size disposed at the center of the bottom face (11). The top face (15) is an aspheric surface rotational symmetric with respect to a z-axis and which totally reflects a part of a component, whose polar angle is smaller than a polar angle Θ0 at the intersection between the lateral face (14) and top face (15), of light emitted from the surface light source (13). The lateral face (14) is an aspheric surface rotational symmetric with respect to the z-axis and pervious to a component, whose polar angle is larger than the polar angle Θ0, and component, totally reflected at the top face (15), of the light emitted from the surface light source (13). A function r=fS(z) where z is a variable representing the lateral face (14) increases monotonously as the variable z decreases in a closed zone defined by 0≦z≦z1 (z-coordinate of an intersection between the lateral face (14) and top face (15)), and has at least one point where a absolute value |d2r / dz2| is maximum in the closed zone.

The invention aims to provide a method and equipment for providing searching suggestions corresponding to a query sequence. The method comprises the following steps of: acquiring an optimal searching suggestion which is selected from one or more first searching suggestions through user equipment by a user, wherein the one or more first searching suggestions correspond to the query sequence input by the user; performing matching processing according to the optimal searching suggestion to obtain one or more second searching suggestions corresponding to the optimal searching suggestions; and providing at least one of the one or more second searching suggestions for the user equipment. The optimal searching suggestion which is selected from the first searching suggestions by the user is acquired, and the matching processing is performed according to the optimal searching suggestion to obtain the second searching suggestions which are provided for the user; and therefore, compared with theprior art, the invention provides richer searching suggestions for the user, provides a wider selection range for the user and improves the searching experiences of the user.

A data encryption and decryption method and an apparatus thereof, and a communication system are disclosed. The data encryption method comprises the following steps of segmenting data to be encrypted and generating a segmented data; aiming at the data to be encrypted, randomly selecting an encryption algorithm; randomly generating a secret key corresponding to the encryption algorithm; using the encryption algorithm and the secret key to encrypt the data to be encrypted so as to acquire the encrypted segmented data; packing the encrypted segmented data to acquire an encrypted segmented data block; and combining and packing the encrypted segmented data block to acquire a final cryptograph. By using the encryption method, cracking difficulty is increased and safety of the data encryption method is increased.

This invention relates to a kind of improving method of lithium ionic cell cathode materials. The cathode materials in need of improving are mixed evenly with catalyst which has 0.1úÑ-10úÑ weight percent of cathode materials. The materials are then put into reaction furnace, which uses hydrocarbon as carbon source. The cathode materials are mixed with buffer gas according to 1í†(0-10) volume ratio. Then the mixture are reacted in reaction furnace at 600-1300íµ for 1-900 minutes. A kind of improved composite cathode materials, at the surface of which in-situ grows nanometer carbon fibrin / carbon tube, are gained. The improved materials have good cell kinetic ability, circulating ability, charge-discharge capacity and consistency with electrolyte.

Apparatus, and an associated method, for a power converter that provides operative power to a load device. The characteristics of the operative power are selectable, permitting the power supply to be used to power load devices of differing power requirements. An indicator indicates that electrical characteristics, such as voltage levels and polarities, to be exhibited by the operative power. A signal is generated by a command generator and provided to a power source. The power source extracts the informational content of the command and generates operative power of the selected characteristics.

The invention discloses a synthesis method of a polymethacrylate pour point depressant. The method comprises the following steps: (1) synthesizing hexadecyl methacrylate; (2) synthesizing a polymer, proportioning and adding the hexadecyl methacrylate, styrene and maleic anhydride in a ratio of (2-10):(1-5):(1-5) into a three-mouth flask filled with magnetite, by taking toluene as a solvent, adding an initiator benzoyl peroxide, and heating for completely dissolving the reactants, starting to stir, according to the difference of carbon numbers of polycarbonates, maintaining the internal temperature of the three-mouth flask at 65-90 DEG C, and carrying out reaction for 4-8 h; and (3) removing toluene by reduced pressure distillation. The method disclosed by the invention achieves the beneficial effects that the polymethacrylate pour point depressant synthesized by using the method is high in purity, high in yield, and good in pour point depressing effect; and the selection scope of the pour point depressant to base oil is expanded, and the low-temperature fluidity of lubricating oil can be improved well.

The invention discloses a metal-based powder metallurgy brake lining material and preparation methods thereof. The invention aims to solve the problems that the strength of a material is reduced along with the adding of ceramic particles when the powder metallurgy brake lining material is produced by the prior art and the like. The material comprises the following components in percentage by weight: 10 to 80 percent of Cu-Sn mechanical alloy powder, 1.25 to 15 percent of Ti-C mechanical activated powder, 2 to 65 percent of Fe powder, 0 to 10 percent of Ni powder, 0 to 12 percent of Cr powder, 2 to 8 percent of Al2O3 powder, and 7.75 to 23 percent of graphite, wherein the Cu-Sn mechanical alloy powder is prepared from Sn powder and Cu powder which contains 6 to 10 percent of Sn powder by mechanical alloying beforehand; and the Ti-C mechanical activated powder is prepared from Ti powder and C powder according to the ratio of 2:1-8:1 through mechanical activation beforehand, and forms TiC during the sintering. The invention also provides two preparation methods which combine the mechanical activation and the mechanical alloying with the prior powder metallurgy or discharge plasma sintering method.

The invention relates to a thermal-insulating anti-flaming building material and a preparation method thereof. The thermal-insulating anti-flaming building material comprises the following components by weight parts: 45 to50 parts of lightweight aggregates, 45 to 50 parts of inorganic gelled materials, 5 to 10 parts of toughening agents, 3 to10 parts of interface modifying agents and 0.5 to 2 parts of dispersing agents. The quick coagulating function and the closing function of the interface modifying agents are utilized to perform hole-closing treatment on the surfaces of the lightweight aggregates; fibrous inorganic whisker materials with big ratio of length to diameter are selected as the toughening materials; the defects of inferior thermal-insulating effect and fragile property of the inorganic thermal-insulating material are thoroughly overcome; all the raw materials of the thermal-insulating anti-flaming building material are selected from A-level anti-flaming materials and areexcellent in anti-flaming effect; and the production process for the thermal-insulating anti-flaming material is simple and short, is continuously operated, is easily performed and controlled and is beneficial to industrialized application.

The invention relates to a method for preparing a compound electrode, which aims to widen the selection range of electrode materials and simplify a production process so as to obtain the electrode with the best cost performance and reduce the using amount of noble metal. The method comprises the following steps of: selecting a semiconductor or insulated material as a substrate of the compound electrode; obtaining a printing electrode layer on the first layer of the bottom part of the compound electrode on the substrate by a printing process, and solidifying the printing electrode layer; and finally, obtaining electrode parts on the second layer or above the second layer of the compound electrode on the printing electrode layer by a plating process, wherein the plating process comprises electronic plating and chemical plating. The compound electrode prepared by the method is made of two or more layers of different conducting materials, and the preparation method combines the advantages of preparing electrodes by an electronic plating method and a printing method and can be widely applied to the field of printing electronics.

The present invention relates to: a magnetic field shielding sheet for a digitizer which minimizes an influence on a geomagnetic sensor, shields the electromagnetic field generated from various constituent elements of a main body of a portable terminal device when preparing a digitizer function for the portable terminal device, and can simultaneously improve the sensitivity of an electronic pen; a manufacturing method thereof; and the portable terminal device using the same. The magnetic field shielding sheet of the present invention comprises: a thin magnetic sheet having at least one layer which is formed with a nano-crystalline alloy and is divided into a plurality of fine pieces by flake treatment; a protective film attached to one side of the thin magnetic sheet through a first adhesive layer; and double-sided tape attached to the other side of the thin magnetic sheet through a second adhesive layer formed on one side, wherein the thin magnetic sheet is characterized by heat-treating an amorphous ribbon formed with the nano-crystalline alloy at a temperature of 300 DEG C to 700 DEG C.

The invention discloses a preparation method of functional fluorescence carbon nanoparticles (CNPs) based on natural saccharide materials and representation and application thereof in measurement for biotechnique. The preparation method is characterized by comprises the following steps of dissolving 1g of carbon sources (cellulose, starch, chitosan and cyclodextrin) and 0.1g of NaOH into 15ml of deionized water, then reacting reacting for 4 hours in an autoclave at 160 DEG C, and carrying out acid-base neutralization and microwave treatment on the obtained carbon nanoparticles. According to the preparation method, the raw materials are abundant and cheap and are easily available, the preparation method is simple, and the synthesized nanoparticles have good fluorescence characteristic and the characteristics of stable fluorescence, dark flashing, tunable wavelength, wide excitation spectra, narrow emission spectrum and the like, and can be used as a fluorescence indicator in the biological medicine field.

The invention provides a support layer for a perovskite base thin film solar cell and a production method of the support layer. The support layer is in a porous structure, so that organic metal semiconductor light absorption materials in perovskite structures can be filled in. The support layer is made of polymer materials. According to the support layer and the production method, the polymer materials are used as the support layer to produce the perovskite base thin film solar cell and the support layer material is different from traditional inorganic wide bandgap semiconductors and inorganic insulators; compared with prior perovskite base thin film solar cells, the support layer has the advantages that during the production of the support layer, the support layer in the porous structure meeting conditions can be obtained without special solvents or special instruments; the support layer can only be subjected to room temperature drying instead of high-temperature treatment during production, the production process is simple, and the operation is facilitated.