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Tsinghua University patents (2016 archive)


Recent patent applications related to Tsinghua University. Tsinghua University is listed as an Agent/Assignee. Note: Tsinghua University may have other listings under different names/spellings. We're not affiliated with Tsinghua University, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "T" | Tsinghua University-related inventors


Image coding/decoding method, device, and system

The present application discloses an image coding/decoding method, device, and system, where an encoder performs singular vector decomposition on a prediction block corresponding to a to-be-coded image block, to obtain eigenvector matrices u and v of the prediction block; and performs coding processing on residual data according to the eigenvector matrices u and v of the prediction block, where the residual data is a difference between a pixel value of the to-be-coded image block and a pixel value of the corresponding prediction block. This can reduce identifier load of a coded bit stream.. ... Tsinghua University

Organic electroluminescent and preparation method thereof

Disclosed are an organic electroluminescent device and a preparation method thereof. The organic electroluminescent device comprises an anode, a hole transport layer, an organic light-emitting layer, an electron transport layer and a cathode. ... Tsinghua University

Method, apparatus and system for sending physical layer signal

Embodiments of the present invention disclose a sending apparatus and a receiving apparatus, and a method for sending a physical layer signal, includes: constructing a signal with a frame structure comprising multiple ga128 sequences, a —ga128 sequence, and a single-frequency sequence of m in length; wherein the ga128 and —ga128 sequences are golay sequences of 128 in length, m is an integer multiple of 128, and the single-frequency sequence comprises m single-frequency symbols and is used to enable a receiving apparatus to estimate an inphase and quadrature (iq) imbalance parameter; and sending the signal with the frame structure.. . ... Tsinghua University

Rechargeable nickel ion battery based on nano carbonmaterials

This invention discloses a rechargeable nickel ion battery based on the nano-carbon materials. The said nickel ion battery is composed of a nano-carbon material cathode, a nickel anode, an separator, and an electrolyte containing nickel ions. ... Tsinghua University

Magnetic head, hard disk device, and method for transferring two-dimensional atomic crystal layer to head slider of magnetic head

A magnetic head, including a head slider. The head slider includes a contact surface corresponding to a disk body, and the contact surface is a flat surface. ... Tsinghua University

Electric power peak-shaving and combined heat and power waste heat recovery device and operation method thereof

The invention relates to an electric peaking combined heat and power (chp) waste heat recovery device and an operating method thereof. The device comprises an inner power plant portion and a heat exchange station portion, wherein the inner power plant portion comprises a heat exchanger, a waste heat recovery electric heat pump, an energy-storing electric heat pump, high/low temperature water storing tanks, a heating network heater, a valve and a circulating water pump; the heat exchange station portion mainly comprises high/low temperature water storing tanks, an electric heat pump, a heat exchanger, a valve and a circulating water pump; as for the operating method of the device, the device can operate in periods of an electrical load trough, an electrical load flat and an electrical load peak respectively through combination of different valve switches, the high temperature water storing tank is used for balancing the difference between system heat supply amount and heating load, the low temperature water storing tank is used for stabilizing steam exhaust waste heat recovery amount, thereby, the problem that the electricity generation peaking capacity is limited due to mutual coupling of electricity generation and heat supply in traditional operating modes of ‘heat determines electricity’ is solved, a chp unit can participate in power grid load regulation, the power grid regulating capacity can be improved so as to deal with the condition of constantly increasing of electrical load trough-to-peak difference, and the absorptive capacity of a power grid for wind power generation can be improved so as to reduce phenomena of ‘fan suspending’.. ... Tsinghua University

Fuel cell system

The disclosure relates to a fuel cell system. The fuel cell system includes a fuel cell module, fuel and oxidizing gas. ... Tsinghua University

Method for making fuel cell system

The disclosure relates to a method for making fuel cell system. The fuel cell system includes a fuel cell module curved to form a chamber. ... Tsinghua University

Fuel cell modules

The disclosure relates to a fuel cell module. The fuel cell module includes a container and a membrane electrode assembly located on the container. ... Tsinghua University

Method and apparatus for cache management of transaction processing in persistent memory

The present invention provides a method and an apparatus for cache management of transaction processing in persistent memory. The method includes: when a transaction starts, reading old version data from non-volatile memory to a processor cache, and executing the transaction; during the execution of the transaction, allocating a space to generated new version data, and using a steal write-back technology to allow persistence of uncommitted data; when the transaction is committed or aborted, implementing forced persistence of transaction data to the non-volatile memory; after persistence of the transaction data or state is implemented to the non-volatile memory, writing the transaction data back to original data addresses, and using a no-force write-back technology to relax persistence of committed data to the non-volatile memory, where the transaction processing module periodically implements persistence of cached data to the non-volatile memory using bulk persistence; and when a system failure occurs, performing failure recovery processing on the transaction data. ... Tsinghua University

Metal nanowires film

The disclosure relates to a metal nanowire film. The metal nanowire film includes a substrate and a number of first metal nanowire bundles located on the substrate. ... Tsinghua University

Method for making metal nanowires film

The disclosure relates to a method for making a metal nanowire film. The method includes applying a metal layer on a substrate; placing a carbon nanotube composite structure on the metal layer, wherein the carbon nanotube composite structure defines a number of openings and parts of the metal layer are exposed by the number of openings; dry etching the metal layer using the carbon nanotube composite structure as a mask; and removing the carbon nanotube composite structure. ... Tsinghua University

Electronic device, method and computer-readable medium for sensing spectrum usage in a cognitive radio communication system

The disclosure provides an electronic device, a method and computer-readable medium. The electronic device includes a circuitry. ... Tsinghua University

Transparent oled device and display device employing same

The present invention discloses a transparent oled device, which comprises a plurality of pixels, each pixel comprising an organic functional layer, a first transparent electrode and a second transparent electrode being disposed on both sides of the organic functional layer, a reflective electrode being disposed on one side of the organic functional layer, the area of the reflective electrode being less than that of the organic functional layer. With regard to the transparent oled device, by providing a reflective electrode, a combination of a light-emitting device over a microdomain is combined with a transparent light-emitting device, such that the luminance on both sides of a transparent oled device can be respectively adjusted to be the same or different as required. ... Tsinghua University

11/10/16 / #20160329115

Fuel ball detecting method and system with self-diagnosis function

A fuel ball detecting method and system with a self-diagnosis function are provided. The method includes: exciting a first detecting coil and a second detecting coil of a fuel ball sensor disposed outside a pipeline; obtaining a first voltage signal u1 from the first detecting coil and a second voltage signal u2 from the second detecting coil; processing u1 and u2 by differential amplification, band pass filtering, phase sensitive detection and low pass filtering by a signal processor to obtain a fuel ball waveform signal u0; determining whether the fuel ball passes the pipeline according to u0 by a single chip microcomputer; determining whether the first and the second detecting coils, the signal processor and the single chip microcomputer work normally; outputting a result showing whether the fuel ball passes the pipeline, when the first and the second detecting coils, the signal processor and the single chip microcomputer work normally.. ... Tsinghua University

11/10/16 / #20160328828

Depth map super-resolution processing method

The present invention discloses a depth map super-resolution processing method, including: firstly, respectively acquiring a first original image (s1) and a second original image (s2) and a low resolution depth map (d) of the first original image (s1); secondly, 1) dividing the low resolution depth map (d) into multiple depth image blocks; 2) respectively performing the following processing on the depth image blocks obtained in step 1); 21) performing super-resolution processing on a current block with multiple super-resolution processing methods, to obtain multiple high resolution depth image blocks; 22) obtaining new synthesized image blocks by using an image synthesis technology; 23) upon matching and judgment, determining an ultimate high resolution depth image block; and 3) integrating the high resolution depth image blocks of the depth image blocks into one image according to positions of the depth image blocks in the low resolution depth map (d). Through the depth map super-resolution processing method of the present invention, depth information of the obtained high resolution depth maps is more accurate.. ... Tsinghua University

11/10/16 / #20160327784

Optimized design method for manufacturing fresnel grating

An optimized design method for manufacturing a fresnel grating is disclosed, including the following steps: (1) making a fresnel surface type of the fresnel grating equivalent to a curved surface type, and determining, based on the curved surface type to which the fresnel surface type is equivalent, an optical path difference function of the fresnel grating: Φ (λ)=<ap1p2b>−<aob>+nmλ; and (2) determining a fresnel grating parameter that minimizes a function value of the optical path difference function, so as to manufacture a fresnel grating that has an aberration elimination effect. The manufactured fresnel grating may effectively eliminate a portion of aberrations of the fresnel grating, and increase a resolution of a spectrometer.. ... Tsinghua University

11/03/16 / #20160322582

Organic electroluminescent device and method for manufacture thereof

The present invention discloses an organic electroluminescent device and a manufacturing method thereof. The host material of the light-emitting layer of the organic electroluminescent device is material in which the triplet state energy level of the ct excited state is higher than that of the n-π excited state by 0 to 0.3 ev; or the triplet state of the host material of the light-emitting layer is higher than that of the n-π excited state by more than 1.0 ev; in addition, the difference in energy level between the second triplet state of the n-π state and the first singlet state of the ct excited state is −0.1 to 0.1 ev; and the luminescent dye is a fluorescent dye. ... Tsinghua University

11/03/16 / #20160320750

Exposure method of holographic grating and exposure light path

The invention provides an exposure method of a holographic grating and an exposure light path. The exposure method includes: (1) determining initial positions (c, d) of the two exposure light sources (s1, s2); (2) calculating imaging quality parameters of the grating; (3) setting a compensating mirror (a1) in the initial light path; (4) adjusting a position of the exposure light source (s1) to a new position (d1) according to a position of the compensating mirror (a1); (5) calculating imaging quality parameters of the grating; (6) judging whether the imaging quality parameters in the step (5) and the imaging quality parameters in the step (2) are equal, and if yes, using the new position (d1) as a final position of the exposure light source (s1). ... Tsinghua University

11/03/16 / #20160320237

Method of spectrometer and spectrometer

A design method of a spectrometer and a spectrometer are disclosed, including the following steps: 1) determining an incident angle of a second incident slit and a groove-shaped cycle of a concave grating; 2) estimating a blaze angle of the concave grating, determining a surface material and a groove-shaped structure of the concave grating; 3) acquiring wavelength-diffraction efficiency curves; 4) determining values of incident angles θa1 and θa3 and values of wavelengths λ2 and λ3, and setting λ4 to equal λ2; 5) acquiring a record structural parameter and a use structural parameter; 6) determining a manufacture parameter of the concave grating; 7) determining locations of the three incident slits and the three photodetectors relative to the concave grating. The spectrometer acquired by using this method has relatively high diffraction efficiency in most spectrum regions and effectively alleviates the problem of relatively low diffraction efficiency in a broad spectrum region.. ... Tsinghua University

10/27/16 / #20160316548

Cathode control multi-cathode distributed x-ray apparatus and ct device having said apparatus

This invention relates to an apparatus producing distributed x-ray, and in particular to a cathode control multi-cathode distributed x-ray apparatus, which produces x-ray that changes focal position in a predetermined order by arranging multiple independent hot cathodes and controlling cathodes in an x-ray source device, and a ct device having said x-ray apparatus.. . ... Tsinghua University

10/27/16 / #20160315846

Method and system for detecting normalization of forwarding behavior of router in core routing area

The present disclosure provides a method and system for detecting normalization of forwarding behavior of a router in a core routing area. The method includes: obtaining data flow received by ports of a core router; performing matching check to the data flow according to the data flow state table; if the data flow does not match the data flow state table, checking state of the data flow to calculate a state check result s(i); determining whether the data flow state table needs to be updated, if yes, updating the data flow state table; and determining whether the state check result s(i) is a trigger state, if yes, calculate state r of the forwarding behavior of the core router, and determining whether the forwarding behavior of the core router is abnormal according to the state r of the forwarding behavior of the core router, if yes, generating an alert log.. ... Tsinghua University

10/27/16 / #20160313185

Light polarization state modulation and detection apparatuses and detection method

Disclosed are a light polarization state detection apparatus, a detection method and a light polarization state modulation method. The light polarization state detection apparatus comprises a lens with a variable birefringence feature as an optical phase modulator, a polarizer as a sop analyzer, a plurality of common lenses and a ccd as imaging devices, and a data processing and displaying unit. ... Tsinghua University

10/13/16 / #20160301596

Collaboration method and device for verifying behavior in route switching system

A collaboration method and device for verifying a behavior in a route switching system are provided. The method includes: evaluating a plurality of evaluating indicators in a plurality of verification methods to obtain valid evaluating indicators; generating a comprehensive efficiency attribute value set and a comprehensive cost attribute value set according to the valid evaluating indicators; generating weights of the valid evaluating indicators according to importance of the valid evaluating indicators; calculating a comprehensive efficiency value corresponding to each verification method and a comprehensive cost value corresponding to each verification method according to the weights of the valid evaluating indicators and values of the valid evaluating indicators in each verification method; establishing a state transition equation according to the comprehensive efficiency value corresponding to each verification method and the comprehensive cost value corresponding to each verification method, and solving the state transition equation to obtain an optimal solution.. ... Tsinghua University

10/13/16 / #20160301564

Verifying method and device for consistency of forwarding behaviors of router data based on action codes

The present disclosure provides a verifying method and device for consistency of forwarding behaviors of router data based on action codes. The verifying method includes following steps of: determining related functions for a number of functional modules of a router; configuring action codes for the function modules of the router, each functional module sending configured action code to control layer after executing the related function; configuring condition codes for the functional modules of the router; combining parts or all of the functional modules according to a preset combination way; constructing a trie tree, nodes of the trie tree storing the action codes of the functional modules; detecting whether there is abnormal forwarding behavior in forwarding process of received data packet according to the trie tree and the received data packet.. ... Tsinghua University

10/13/16 / #20160301098

Method of making polymer lithium ion battery

A method of making a polymer lithium ion battery comprises following steps. A case and a battery core located within the case are provided. ... Tsinghua University

10/13/16 / #20160298179

Luminophore-labeled molecules coupled with particles for microarray-based assays

A method for labeling target molecules coupled to particles for the detection of the target molecules using a microarray chip, comprises: providing a functionalized microparticle, wherein the microparticle is coated with one or more functional group; providing a modification group on each of the target molecules to be detected to form modified target molecules; contacting the functionalized microparticle with the modified target molecules; coupling a luminophore to the complex between the functionalized microparticle and the modified target molecules, thereby directly or indirectly labeling each modified target molecules with the luminophore. By directly or indirectly labeling the target molecules with the luminophore, the method reduces the cost of fluorescence detection, and avoids pcr inhibition derived from traditional fluorescence labeling molecules.. ... Tsinghua University

10/06/16 / #20160294070

Wideband microstrip antennas and antenna arrays

There is provided a wideband patch antenna and an antenna array. The antenna includes a dielectric substrate of a rectangle shape, a radiation patch formed on a top surface of the dielectric substrate, a coupling patch formed on the top surface of the dielectric substrate and extending from a side of the dielectric substrate to a position from the radiation patch by a distance, a metal support arranged on the lower surface of the dielectric substrate and extending from the edge of the lower surface of the dielectric substrate downward to the ground, a layer of air having a predetermined thickness being formed between the lower surface of the dielectric substrate and the ground. ... Tsinghua University

09/29/16 / #20160285506

Spreading signal generating method, generating device, receiving method and receiving device

The application relates to a spreading signal generating method, generating device, receiving method and receiving device. The spreading signal generating method comprises: generating a first spreading signal component and a second spreading signal component, wherein the first spreading signal component and the second spreading signal component each comprise a spreading code and a binary subcarrier, the spreading code of the first spreading signal component is the same as the spreading code of the second spreading signal component, the binary subcarrier of the first spreading signal component is different from the binary subcarrier of the second spreading signal component; and modulating the first spreading signal component and the second spreading signal component with radio frequency (rf) carriers so as to generate the spreading signal, where a phase of rf carrier for modulating the first spreading signal component is different from a phase of rf carrier for modulating the second spreading signal component.. ... Tsinghua University

09/22/16 / #20160276069

Method for recoating rtv anti-pollution flashover coating on insulator coated with rtv anti-pollution flashover coating

Disclosed is a method for recoating an rtv anti-pollution flashover coating on an insulator coated with the rtv anti-pollution flashover coating. The insulator includes an insulator body, a steel cap connected to an upper surface of the insulator body, and a steel pin connected to a lower surface of the insulator body. ... Tsinghua University

09/22/16 / #20160275330

Method and device for estimating orientation field of fingerprint

A method for estimating an orientation field of a fingerprint is provided, comprising: obtaining an initial orientation field of a fingerprint, and putting the initial orientation field in a reference coordinate system; obtaining n initial orientation blocks corresponding to the initial orientation field, and obtaining n orientation block sets corresponding to n positions respectively from a fingerprint dictionary; obtaining a similarity between each of the n initial orientation blocks and each orientation block in the n orientation block sets corresponding to the n positions to obtain p similarities, and selecting a preset number of candidate orientation blocks for each position from the orientation block set according to the p similarities; obtaining a compatibility between two candidate orientation blocks corresponding to any two adjacent positions respectively to obtain a plurality of compatibilities; and obtaining a candidate orientation block for each position according to the p similarities and the plurality of compatibilities.. . ... Tsinghua University

09/01/16 / #20160254790

Distributed amplifier

The present disclosure provides a distributed amplifier, including: a drain transmission line; a gate transmission line; gfets, in which sources of the graphene field-effect transistors are respectively grounded; gates of the graphene field-effect transistors respectively connected with a plurality of first shunt capacitors which are grounded; the gate transmission line is connected with a plurality of first nodes respectively between the gates of the graphene field-effect transistors and the plurality of first shunt capacitors, having a plurality of first inductors respectively between each two first nodes; drains of the graphene field-effect transistors respectively connected with a plurality of second shunt capacitors which are grounded; the drain transmission line is connected with a plurality of second nodes respectively between the drains of the graphene field-effect transistors and the plurality of second shunt capacitors, having a plurality of second inductors respectively between each two second nodes.. . ... Tsinghua University

09/01/16 / #20160251239

Method and apparatus for processing radioactive wastewater

A method and an apparatus for processing radioactive wastewater are provided, wherein the radioactive wastewater is processed by using disc tube reverse osmosis (dtro) membrane assembly, thereby achieving both the effects of high decontamination factors and high concentration multiples. In said method, the radioactive wastewater passes through the first-stage membrane assembly and the second-stage membrane assembly in sequence to obtain the second-stage clear water, and the first-stage concentrated water flowing out of the first-stage membrane assembly enters the third-stage membrane assembly to obtain concentrate.. ... Tsinghua University

08/25/16 / #20160249037

Method for acquiring comfort degree of motion-sensing binocular stereoscopic video

The present invention discloses a method for acquiring a comfort degree of a motion-sensing binocular stereoscopic video. The method includes the following steps: s1. ... Tsinghua University

08/25/16 / #20160244965

Impact resisting column assembly of train station

An impact resisting column assembly of train station is provided. The column assembly includes: a column (2); an encasing steel plate (8) wrapping about the column (2); a rigid jacket (3) having a rectangular cross-section, fitted over the encasing steel plate (8) and spaced apart from the encasing steel plate (8); and mild steel energy dissipators (7) disposed between a first side (81) of the encasing steel plate (8) and a first side (31) of the rigid jacket (3), and between a second side (82) of the encasing steel plate (8) and a second side (31) of the rigid jacket (3), in which the first and second sides (81, 82) are parallel with each other and perpendicular to an extension direction of a railway (1) in the train station, and the first and second sides (31, 32) are parallel with each other and perpendicular to the extension direction.. ... Tsinghua University

08/11/16 / #20160233507

Cathode active material and method for making the same

A method for making a cathode active material of a lithium ion battery, the cathode active material being represented by a chemical formula of li[(ni0.8co0.1mn0.1)1-xmox]o2, wherein 0<x≦0.05. Source liquid solutions of li, ni2+, co2+, mn2+, and mo6+ are mixed in stoichiometric ratio in a multi-carboxylic acid solution to form a solution. ... Tsinghua University

08/11/16 / #20160231458

Method for parsing and calculating performance of satellite gravity field measurement by low-to-low satellite-to-satellite tracking

A method for calculating performance of satellite gravity field measurement by low-to-low satellite-to-satellite tracking, includes: acquiring parameters of gravity satellite system; calculating an effect of satellite loads on the power spectrum of nonspherical perturbation potential, so as to obtain an degree error variance; comparing degree error variance with degree variance given by kaula rule, and when degree error variance equals degree variance, considering that the highest degree of gravity field measurement is obtained, calculating geoid degree error and its accumulative error, gravity anomaly degree error and its accumulative error, so as to obtain the performance of satellite gravity field measurement by low-to-low satellite-to-satellite tracking. The method is capable of evaluating gravity field measurement performance quickly and effectively, obtaining a rule of effects of the gravity satellite system parameters on the gravity field measurement performance, so as to avoid shortcoming caused by numerical simulation.. ... Tsinghua University

08/11/16 / #20160231453

Detector in a scattered configuration applied to x/gamma ray container/vehicle inspection equipment

The present application discloses a detector module, which is arranged on a detector arm, comprising one or a plurality of detector units arranged in a scattered configuration, wherein each of the detector units in the detector module is installed aiming at a beam center of a ray source, thus improving imaging quality and reducing the size of a detector frame drastically.. . ... Tsinghua University

08/11/16 / #20160231223

Fluidic chip for flow cytometry and methods of use

The present disclosure in some embodiments provides a flow cell sorting system, a focus detection method, as well as a fluidic chip. In one aspect, the fluidic chip comprises a cover sheet and one or more substrate layers, and one or more channels in each of the fluidic chips. ... Tsinghua University

08/11/16 / #20160229497

Floating type self-lifting drilling platform

A floating type self-lifting drilling platform includes a main deck, a floating cushion, pile legs, a lifting mechanism and a mooring system. The area and thickness of the floating cushionare both greater than those of the main deck, the middle part is provided with a moon pool, and the inner part is partitioned into multiple cabins; there are three pile legs, the pile legs are truss structures, the bottom part of each of the pile legs is rigidly connected with the floating cushion, and the main deck lifts vertically along the pile legs through the lifting mechanism and is fixed at a preset height; each pile leg includes upper and lower hollow sealing bodies; the water line is located in the height range of the upper section during the operation and positioned through the mooring system.. ... Tsinghua University

07/28/16 / #20160219308

Method and apparatus for obtaining size of transform block

The present disclosure provides a method for obtaining a size of a transform block, where the method includes: obtaining a dividing manner of an image block; and obtaining size information of a post-dividing transform block according to the dividing manner of the image block and a width and a height of a pre-dividing transform block. By using the method for obtaining a size of a transform block provided in this embodiment of the present disclosure, a size of a transform block may be coded according to a dividing manner of an image block or a height and a width of a pre-dividing transform block, thereby effectively improving coding efficiency.. ... Tsinghua University

07/14/16 / #20160200589

Method for making lithium cobalt oxide

A method for making lithium cobalt oxide requires a cobalt salt solution and an alkaline solution as reactants, these reactants being put into a controlled crystallization reactor containing a buffer agent. The reactants are stirred to form spheres of cobalt oxyhydroxide. ... Tsinghua University

07/07/16 / #20160198163

Quantization method and apparatus in encoding/decoding

An apparatus at an encoding end and an apparatus at decoding end are provided for implementing quantization in encoding and decoding an image in a process of transmission. The apparatus at an encoding end includes a memory storage and a processor coupled to the memory that executes the instructions to perform quantization using a coefficient matrix on an image, the coefficient matrix having a plurality of coefficients which being divided into a plurality of frequency bands, wherein a number of the frequency bands is smaller than a number of coefficients in the coefficient matrix; a scaling value is assigned that every coefficient in said each frequency band has the same scaling value; generate a parameter set having multiple band parameters thereof and write the parameter set into a bitstream to be transmitted. ... Tsinghua University

07/07/16 / #20160196884

Reactivity control method and telescoped control rod for pebble-bed high-temperature gas-cooled reactor

A reactor lateral reflection layer telescoped control rod capable of separately achieving cold shutdown includes an inner rod, an outer rod and a guide cylinder assembly which are vertically and coaxially arranged, wherein the outer rod and the guide cylinder assembly are hollow cylindrical bodies; the top end of the inner rod can move up and down inside the outer rod and the other end of the inner rod moves up and down, along with the top end, inside a control rod passage which is positioned below the guide cylinder assembly and is coaxial with the guide cylinder assembly; and the top end of the outer rod can move up and down in the guide cylinder assembly and the other end of the outer rod moves up and down, along with the top end, inside the control rod passage.. . ... Tsinghua University

07/07/16 / #20160196686

Patch net model and construction method thereof

The present invention relates to the technical field of image processing, and in particular, to a patch net model for image representation and a construction method of the patch net model. The patch net model for image representation is of a forest-shaped structure consisting of a plurality of composite nodes and basic nodes, each composite node is a non-leaf node, and each basic node is a leaf node; the basic node includes a certain patch region of an image and a representative patch representing an apparent feature of the patch region; the composite node includes a certain patch region of the image and can be further decomposed into basic nodes and/or composite nodes; an edge exists between two nodes, which are located on the same layer of the forest-shaped structure and are spatially connected, and a relation matrix used for expressing the spatial relative position of the two nodes is arranged on the edge.. ... Tsinghua University

06/16/16 / #20160172326

Bonding method and bonding structure formed using the same

In view of the problems in all existing bonding methods, such as high temperature, high pressure, and high surface modification cost, etc., the present invention provides a bonding method and a bonding structure formed using the same, which can overcome such drawbacks and also achieve wafer-level bonding under a condition of normal temperature and low pressure. The bonding method comprises: generating bonding structures capable of being mutually mechanical interlocked, wherein, the frictional heat generated by the bonding structures capable of being mutually mechanical interlocked is higher than the bonding energy therebetween; and, utilizing the frictional heat generated by the bonding structures capable of being mutually mechanical interlocked to bond the bonding structures capable of being mutually mechanical interlocked.. ... Tsinghua University

06/16/16 / #20160170074

Alignment system and method for container or vehicle inspection system

The present disclosure discloses an alignment system and an alignment method for a container or vehicle inspection system, and an inspection system. The inspection system comprises comprising an ray source, a collimator, a detector arm and a detector module mounted on a detector arm, the ray source, the collimator and the detector module are arranged to form an inspection passage, a ray beam emitted from the ray source passes through collimator and irradiates onto an inspected object, and an attenuated ray beam is collected by the detector module so as to complete inspection. ... Tsinghua University

06/16/16 / #20160167979

Method for making spherical cobalt oxyhydroxide

A method for making a spherical cobalt oxyhydroxide requires a controlled crystallization reactor. A buffer agent is put into the controlled crystallization reactor. ... Tsinghua University

06/09/16 / #20160164081

Method for making lithium ion battery anode active material

A method for making a lithium ion battery anode active material comprising: providing silicon particles and a silane coupling agent, wherein the silane coupling agent comprises a hydrolysable functional group and an organic functional group; mixing the silicon particles and the silane coupling agent in water to obtain a first mixture; adding a monomer or oligomer to the first mixture to obtain a second mixture, the surfaces of the silicon particles being coated with a polymer layer by in situ polymerization method to obtain silicon polymer composite material, the monomer or the oligomer reacting with the organic functional group of the silane coupling agent in a polymerization, thereby a generated polymer layer being chemically grafted on the surfaces of the silicon particles; and heating the silicon polymer composite material to carbonize the polymer layer to form a carbon layer coated on the surfaces of the silicon particles.. . ... Tsinghua University

06/09/16 / #20160159006

Pneumatic manufacturing system for complex tissues and organs, having multiple degrees of freedom and multiple nozzles

Disclosed is a pneumatic manufacturing system for complex tissues and organs, having multiple degrees of freedom and multiple nozzles, belonging to the organs manufacturing field. The system comprises an x-direction movement mechanism, a y-direction movement mechanism, a q-direction rotation mechanism, a lifting platform, a rotation-forming platform, a shell, a high-pressure gas source, a multiple-nozzle forming unit, a spraying solution pressure tank, a temperature control device, a sterilizing device and a control unit. ... Tsinghua University

06/02/16 / #20160157396

Magnetic field shielding system based on closed superconducting coil groups and magnetic field shielding device

A magnetic field shielding system includes a first stage superconducting coil and a second stage superconducting coil. The first stage superconducting coil and the second stage superconducting coil are coaxial, coplanar and electrically connected in series to form a closed loop; the first stage superconducting coil has a first radius r1, the second stage superconducting coil has a second radius r2, and r1>r2; a radius ratio α between the first radius r1 and the second radius r2 is: α=r1/r2; the first stage superconducting coil has n1 turns; the second stage superconducting coil has n2 turns; a turns ratio β between n1 and n2 is: β=n1/n2; and the radius ratio α satisfies: α≧2; the turns ratio β satisfies: 0.01≦β≦20.. ... Tsinghua University

06/02/16 / #20160153764

Three-dof heterodyne grating interferometer displacement measurement system

A three-dof (degree of freedom) heterodyne grating interferometer displacement measurement system comprises a dual-frequency laser, a grating interferometer, a measurement grating, receivers and an electronic signal processing component; the grating interferometer comprises a polarizing spectroscope, a reference grating and dioptric elements; the measurement system realizes displacement measurement on the basis of grating diffraction, the optical doppler effect and the optical beat frequency principle. Three linear displacements can be output by the system when the grating interferometer and the measurement grating perform a three-dof linear relative motion. ... Tsinghua University

05/26/16 / #20160146762

Method and device for testing defect based on ultrasonic lamb wave tomography

Disclosed are a method and a device for testing a defect based on an ultrasonic lamb wave tomography. The method includes: partitioning an imaging area of a material to be tested into grids; exciting electromagnetic acoustic transducers for emitting to emit lamb waves with a a0 mode in all directions, and electromagnetic acoustic transducers for receiving to receive the lamb waves; obtaining a time-frequency analysis result and recording time-of-flights of testing waves; determining a first slowness of each grid to obtain a first defect area; establishing an extrapolation formula according to the first defect area, and iterating the extrapolation formula to trace and revise paths of the lamb waves until a better imaging precision is obtained.. ... Tsinghua University

05/26/16 / #20160145104

Method for making lithium iron phosphate

A method for making a lithium iron phosphate suitable for use as a cathode active material comprises providing a lithium ion source solution and an iron phosphate, the lithium ion source solution comprising an organic solvent and a lithium chemical compound dissolved in the organic solvent. The lithium ion source solution and the iron phosphate are mixed and the mixture heated at a first temperature under a normal pressure to form a precursor solution, the first temperature being in a range from about 40° c. ... Tsinghua University

05/19/16 / #20160142710

Image encoding and decoding method and apparatus

Embodiments of the present disclosure provide an image encoding and decoding method and apparatus. A division mode used for a current image block is acquired, division information of the current image block is acquired according to the division mode, and encoding processing is performed on a division mode identifier and the division information that correspond to the division mode, so that a decoder obtains, according to the division mode identifier and the division information, a division template used by an encoder, so as to perform decoding. ... Tsinghua University

05/19/16 / #20160140339

Method and apparatus for assembling component in router

A method and apparatus for assembling a component in a router are provided. The router includes at least one reconfigurable component, the at least one reconfigurable component has a unique function, the method includes: obtaining attribute information of the at least one reconfigurable component in the router, wherein the attribute information comprises information on an importance and/or a using frequency of the at least one reconfigurable component in the router; coding the at least one reconfigurable component based on huffman coding to generate a huffman code according to the attribute information of the at least one reconfigurable component; selecting the at least one reconfigurable component, and assembling the selected reconfigurable component to realize a routing function and to form an assembly code; and generating a routing paradigm table according to a user security requirement and the assembly code, such that the router performs the routing function according to the routing paradigm table.. ... Tsinghua University

05/19/16 / #20160138903

Two-dof heterodyne grating interferometer displacement measurement system

A two-dof heterodyne grating interferometer displacement measurement system, comprising a dual-frequency laser, a grating interferometer, a measurement grating, receivers and an electronic signal processing component, wherein the grating interferometer comprises a polarizing spectroscope, a reference grating and dioptric elements. The measurement system achieves the displacement measurement on the basis of the grating diffraction, the optical doppler effect and the optical beat frequency principle. ... Tsinghua University

05/12/16 / #20160132715

Method and system for rectifying distorted fingerprint

A method and a system for rectifying a distorted fingerprint are provided. The method includes following steps. ... Tsinghua University

05/12/16 / #20160132410

Kernel state and user state data exchange method for disaster recovery of virtual container system

The present invention relates to a kernel state and user state data exchange method for disaster recovery of a virtual container system. In one disaster recovery backup of a virtual container, data needs to be exchanged between a kernel state and a user state. ... Tsinghua University

05/12/16 / #20160131807

Manufacture method for blazed concave grating

A manufacture method for a blazed concave grating is provided, including: replicating a blazed concave grating by means of a replication process, after the replication is completed, conducting heat preservation and cooling, then separating two gratings (g1, g2) by using different pulling manners respectively, and finally splicing the replicated and separated concave grating blanks, to obtain a required blazed concave grating. This manufacture method can solve the problem of a big error in an existing replication method for a blazed concave grating.. ... Tsinghua University

05/12/16 / #20160130145

Method for making cathode material of lithium ion battery

A method for making a cathode material of a lithium ion battery is disclosed. A manganese source liquid solution, a lithium source liquid solution, a phosphate source liquid solution, and a metal m source liquid solution are provided. ... Tsinghua University

04/28/16 / #20160118586

Method for forming stacked structure

A method for forming a stacked structure includes steps of: providing a first layer; oxidizing at least a part of the first layer to form a first oxide layer on the first layer; forming a second layer on the first oxide layer; and forming a second oxide layer between the first oxide layer and the second layer by rapid thermal annealing.. . ... Tsinghua University

04/07/16 / #20160098052

Partition method and device for power system

The present disclosure relates to a partition method and a partition device for a power system and belongs to a field of an evaluation and control of a power system. The method includes steps of: obtaining a quasi-steady sensitivity matrix according to generators participating in automatic voltage control and load buses in the power system; obtaining a power system model according to the quasi-steady sensitivity matrix and the load buses; determining principal component vectors and principal component singular values according to the power system model; determining a principal component vector dominated by each generator according to the principal component vectors and the principal component singular values; and partitioning the generators dominating a same principal component vector to a partition, and partitioning the load buses according to a partition result for the generators.. ... Tsinghua University

03/31/16 / #20160092611

Method for constructing real-time solar irradiation metering network of gigawatts level photovoltaic power generation base

A method for constructing real-time solar irradiation metering network of gigawatt-level photovoltaic power generation base comprises the following steps: spatial and temporal distribution characteristics of irradiation quantity of the target area is analyzed based on the historical observation data of the irradiation quantity. The outline location of solar irradiation metering stations is determined by dividing the typical areas where the spatial and temporal distribution characteristics are consistent. ... Tsinghua University

03/31/16 / #20160091409

Apparatus and method to measure a molecular diffusion coefficient in a porous powder

An apparatus and method for measuring molecular diffusivity in porous powders or minerals, e.g., the microporous synthetic minerals used for gas separation and chemical catalysis, were invented that allows a varying pressure in the gas around the powder during the measurement. This obviates the need for the pressure to be constant and the attendant complicated component parts. ... Tsinghua University

03/24/16 / #20160087566

Method and apparatus for controlling reactive power of generator in power plant

A method and apparatus for controlling a reactive power of a generator in a power plant are provided. The method includes: s1, dividing a plurality of power plants into a plurality of plant-plant coordination groups; s2, dividing generators into a first generator and a second generator set; s3, calculating a deviation between a measured voltage and a preset voltage of a central bus; s4, comparing the deviation with a control dead band threshold; s5, establishing a reactive power tracking model if the deviation is greater than the control dead band threshold; s6, establishing a reactive power keeping model; and s7, obtaining sum reactive power adjustments of the generators according to the first reactive power adjustments and the second reactive power adjustments, and obtaining voltage adjustments of buses according to the sum reactive power adjustments.. ... Tsinghua University

03/24/16 / #20160087437

Method and apparatus for controlling voltage in near direct current area

The present disclosure relates to a method and an apparatus for controlling a voltage in a near direct current area. The method includes: collecting measured values of parameters as initial values of prediction values of the parameters; inputting the initial values into a preset control model for optimizing a model predictive control; solving the preset control model to obtain a solution sequence of the terminal voltage setting values of the generators participating in the voltage control within a time window; and sending first values in the solution sequence to the generators, such that the voltage control in the near direct current area is realized.. ... Tsinghua University

03/24/16 / #20160084225

Method and apparatus for controlling voltage in wind farm

The present disclosure relates to a method and an apparatus for controlling a voltage in a wind farm. The method includes: collecting measured values of parameters as initial values of the prediction values; inputting the initial values into a preset control model for optimizing a model predictive control; solving the preset control model to obtain a first solution sequence of the reactive power setting values of the wind turbines and a second solution sequence of the terminal voltage setting values of the static var generators; and sending first values in the first solution sequence to the wind turbines and first values in the second solution sequence to the static var generators, such that a voltage control in the wind farm is realized.. ... Tsinghua University

03/24/16 / #20160083684

Ethanol production device and process through continuous solid-state fermentation and having self-control system

The present invention belongs to the technology field of microbial fermentation for producing fuel ethanol. It specifically relates to a device and process having self-control system for producing fuel ethanol. ... Tsinghua University

03/24/16 / #20160083320

Continuous solid-state separation device and process for producing fuel ethanol

The present invention belongs to the technology field of microbial fermentation of the sugar-containing raw materials for producing fuel ethanol. It specifically relates to a continuous separation device and process for producing fuel ethanol. ... Tsinghua University

03/17/16 / #20160079592

Aluminum based electroactive materials

An electroactive material including an aluminum nanoparticle core and a nanoshell surrounding the aluminum nanoparticle core as well as its methods of use and manufacture are described.. . ... Tsinghua University

03/17/16 / #20160078674

Three-dimensional scene model generating method

Three-dimensional scene model generating method, comprising: analyzing and extracting object structure groups of a scene and the semantic relationship of objects from a scene model library; counting and fitting the relative position of the objects in each object structure group, and calculating a gaussian distribution function; : retrieving each object in the sketch in the model library; : determining a model corresponding to the sketch; calculating the initial position of the corresponding object according to the sketch; finding out a local optimal position according to the initial position calculated and the gaussian distribution function in combination with a gradient descent method, and placing each model according to the position to obtain a final scene model.. . ... Tsinghua University

03/10/16 / #20160072062

Al-w-o stack structure applicable to resistive random access memory

An al-w-o stack structure applicable to a resistive random access memory according to an embodiment of the invention comprises a tungsten top electrode, a tungsten oxide layer formed on the tungsten lower electrode, an aluminum oxide layer formed on the tungsten oxide layer and an aluminum top electrode formed on the aluminum oxide layer. The invention utilizes the different properties of two metals, namely aluminum and tungsten in bonding with oxygen ions, to obtain a resistive random access memory with more stable performances, lower power consumption and larger high resistance-low resistance ratio.. ... Tsinghua University

03/03/16 / #20160064931

Method and device for determining safe threshold for power grid voltage of wind farm converging area

Disclosed are a method and a device for determining safe threshold for power grid voltage of a wind farm converging area, the method includes: obtaining ground state voltage; obtaining upper and lower limit voltage of the output bus, first lower and upper limit of reactive powers of fans and compensation devices, and lower and upper limit of active power fluctuations; obtaining second lower and upper limit of reactive powers of fans and compensation devices; determining whether voltage error is greater than a predetermined threshold; replacing the first lower and upper limit of the reactive powers of fans and the reactive powers of compensation devices with the second lower and upper limit of reactive powers of fans and compensation devices respectively, and repeating above steps if the voltage error is greater than the predetermined threshold, else defining the upper and lower limit voltage of the output bus as a safe threshold.. . ... Tsinghua University

02/25/16 / #20160056847

Method and system for initializing rf module through non-volatile control

Provided are a method and a system for initializing an rf module through non-volatile control, including: storing, by a non-volatile storage array, configuration information for initializing the rf module, and backing up the configuration information when receiving a power-down instruction (s1); and reading, by an rf module initialization accelerator, the configuration information from the non-volatile storage array when receiving a power-up instruction, and transmitting the read configuration information to the rf module, thereby initializing the rf module (s2). With the technical solution given in the present invention, the initialization of an rf module becomes much faster, and the power consumption of a wireless communication terminal can be reduced. ... Tsinghua University

02/11/16 / #20160044771

High-gain thompson-scattering x-ray free-electron laser by time-synchronic laterally tilted optical wave

An improved optical undulator for use in connection with free electron radiation sources is provided. A tilt is introduced between phase fronts of an optical pulse and the pulse front. ... Tsinghua University

02/11/16 / #20160043324

Organic light emitting devices

The present invention relates to monochromatic organic light emitting devices. The organic light emitting device includes a substrate, an anode, a cathode and an organic electroluminescent medium disposed between the anode and the cathode, wherein the organic electroluminescent medium includes compound monochromatic luminescent layer; and the compound monochromatic luminescent layer includes host a doped with monochromatic dopant and host b doped with monochromatic dopant, wherein the host a is consisted of two kinds of materials with different transporting characteristics, one is hole-transporting material, and the other is electron-transporting material. ... Tsinghua University

02/04/16 / #20160036555

All-optical time slice switching method and system based on time synchronization

An all-optical time slice switching method based on time synchronization is provided. With the method, continuous data streams in an optical network are assembled to time domain periodic optical time slices and are transmitted in an asynchronous transmission mode. ... Tsinghua University

01/28/16 / #20160028499

Apparatus and method in radio communications system

An apparatus and a method in a radio communications system. The apparatus in the radio communications system includes an estimation unit and a statistics collection unit. ... Tsinghua University








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