641 results about "Change Type" patented technology

A resistance change type memory includes first, second and third drive lines, a resistance change element having one end connected to the third drive line, a first diode having an anode connected to the first drive line and a cathode connected to other end of the first resistance change element, a second diode having an anode connected to other end of the first resistance change element and a cathode connected to the second drive line, and a driver / sinker which supplies a write current to the resistance change element. A write control circuit is arranged such that when first data is written, the write current is caused to flow in a direction from the first drive line to the third drive line, and when second data is written, the write current is caused to flow in a direction from the third drive line to the second drive line.

The invention discloses a method for monitoring goods in real time in logistics management. The monitoring method comprises the following steps of: constructing a spatial-temporal data model by using an object-oriented thought, defining each object in the logistics management, establishing a data table, introducing an event mechanism, defining a data table and change information of changes caused by each event, combining the changes of related information in the data table in a specified time domain into a set, representing the change of the spatial information of the goods through the set, simultaneously grouping the goods according to the attribute information change types of the goods, performing management by using groups as units, finally defining the chain relation among the events, establishing a data integrity control table by using the events as a core, and completing update of the spatial information according to the table so as to realize real-time monitoring of the goods. The method has the operation flows that the information of the warehoused goods is recorded through a RFID (Radio-Frequency Identification) label and bound with a vehicle ID (Identity) when the goods are delivered, and the spatial information of the outgoing goods can be acquired by positioning a vehicle through a GPS (Global Positioning System) positioner so that update of the spatial information of the goods is realized.

The invention discloses a method and a system for dynamically updating geographic space data based on a remote sensing image. The method comprises the steps of preprocessing an image, identifying change information, performing filtering to eliminate noise, extracting the boundary of a changed area, generating a vector boundary diagram of an image change feature, regularizing the boundary of the feature, segmenting update data based on the principle of quad-tree spatial index to locate the changed area quickly, identifying the change type of elements based on a neural decision tree method, extracting the change type, and updating and storing the change information in an original database. According to the invention, a simple, quick and accurate change detection method is obtained. By adoption of the quad-tree grid partition mode, the speed and precision of retrieval are improved. The boundary of the changed area extracted by an IGAC-based extraction method is more accurate.

A quick change type bit holder for use in a bit assembly for road milling, road planing, trenching and mining equipment wherein a bit shank extends completely through an axially oriented bit holder bore includes a slotted shank having an outwardly tapered bit holder bore wherein insertion of the bit shank in a bit block acts to slightly collapse the shank which collapses the tapered bore to a generally cylindrical configuration that preferably snugly retains the bit shank rotatably therein.

A quick change type bit / bit holder includes several different structures for holding the item in a bit block without the necessity of a fastener. The bit portion of the bit / bit holder combination includes a ductile steel insert with a polycrystalline diamond coated tungsten carbide bit positioned therein. The ductility of the steel insert acts as a shock absorber to allow the bit to successfully remove concrete as well as asphalt in a road milling machine.

A resistance change memory device includes: a memory chip having memory cells of a resistance change type; and a heater so attached to the memory chip as to apply a temperature bias to the memory chip.

The invention provides a sidelight type backlight source module which comprises a light source bracket with a back plate and a rubber frame, LED (Light-Emitting Diode) lamp strips with a plurality of LED light sources, a printed circuit board, a reflecting film, a light guide plate, a brightening film and a scattering film. The light guide plate comprises a light incident bottom surface and a light emergent top surface which is opposite to the light incident bottom surface; scattering lattice points are arranged on the light incident bottom surface of the light guide plate; a gradual change type arrangement way in which the arrangement density degree is determined according to the distances from the scattering lattice points to the LED light sources is adopted for the scattering lattice points; and the arrangement density gradually increases along with the increase of the distances from the scattering lattice points to the LED light sources by regarding the LED lamp strips as boundaries. Compared with the prior art, the sidelight type backlight source module disclosed by the invention provides a backlight source by placing the LED strips at the two sides or single side and changes emergent light brightness at each special position of the light guide plate by setting the non-uniformly distributed scattering lattice points, so that light reinforcement is realized at corresponding position of the light guide plate, which is far away from the LED light sources, and thus ideal light brightness and light emergent uniformity are obtained through the light guide plate.

A quick change type bit / bit holder includes several different structures for holding the item in a bit block without the necessity of a fastener. The bit portion of the bit / bit holder combination includes a ductile steel insert with a polycrystalline diamond coated tungsten carbide bit positioned therein. The ductility of the steel insert acts as a shock absorber to allow the bit to successfully remove concrete as well as asphalt in a road milling machine.

The present invention discloses a multi-scale forest dynamic change monitoring method. The method comprises carrying out remote sensing image geometric correction and rectification; acquiring a land cover type map with a 1KM resolution ratio by using MODIS time series NDVI data with a 1KM resolution ratio of different seasons within one year; generating a coarse scale land cover changing map by using multiple years of land cover type maps with a 1KM resolution ratio; establishing a coarse scale forest cover change masking file by using a coarse scale land cover changing type map; establishing forest cover characteristic indexes on TM images with a 30 m resolution ratio according to the coarse scale forest cover change masking file; and extracting forest dynamic change information combining the coarse scale land cover changing map and forest characteristic indexes of time series. According to the method provided by the present invention, by using time series remote sensing data with different spatial resolutions, coarse scale land cover to fine scale forest change step-by-step detailed forest dynamic monitoring can be realized in large-area regions, and both monitoring efficiency and monitoring accuracy can be raised.

The invention discloses a transceiver used for a radio super broadband, which comprises an antenna, a band-pass filter, a switch, a frequency integrating device, a receiver and a transmitter, wherein the antenna is used for receiving and transmitting RF signals; the band-pass filter is used for filtering out disturbance signals outside the band and in the RF signals; the switch is used for switching a transmitting chain and a receiving chain; the frequency integrating device is used for providing two paths of local oscillation signals of different frequencies; the receiver is used for dividing received RF signals into two paths; the signals in two paths mix frequencies with the local oscillation signals and are provided to a base band by lower frequency-change processing to carry out digital signal processing; the transmitter is used for mixing the frequencies of the two paths of base band signals and the local oscillation signals and generates two paths of transmitted RF signals by upper frequency-change processing, and after the two paths of transmitted RF signals are combined into a path, power amplification is carried out. The invention also discloses a method for receiving and transmitting signals in the radio super broadband. By using the transceiver of a direct frequency-change type, compared with the superhet structure of two frequency-change times, the invention can lower the realizing cost of the system and also facilitates realizing the integration of the system on the chip.

A plurality of differing horizontal pairs of slot shapes are positioned in the upper body portion of a quick change type bit holder to provide access to a bit extractor tool for removing the bit holder from its associated bit block.

The invention is a manufacturing method for quanta point microsphere used as biomedicine fluorescence probe. It belongs to chemical engineering, material and biomedicine field. The invention uses spray and drying method to embeds the quanta point into high molecular material, forms quanta microsphere with particle distribution less than 10 micrometers, the quanta point nanometer particle with different quantity and different fluorescence character is dispersed in the high molecular liquid, then carries on spray and drying, it changes the fluorescence character of the microsphere through changing type of quanta point material, quantity of the quanta point and the color and intensity of the quanta point, controls the particle size and figure of the quanta microsphere through adjusting the condition of spray and drying.

[Problem] An optical path converting type optical coupling element able to be bidirectionally used and restrain the number of parts at its minimum is provided. [Means for Resolution] A resin molding body has two faces (front face 15 and lower face 19) perpendicular to each other, and also has a total reflecting face 23 approximately having an angle of 45° with respect to these two faces. Plural collimating lenses 16 and a spacer 17 are integrally formed on one face. Plural collimating lenses 20 and a spacer 21 are also integrally formed on the other face. A wall taking-away portion 26 is concavely arranged between the two faces so as to be located on the rear face side of the total reflecting face 23. Guide holes 18, 22 for inserting guide pins thereinto and connected to optical connectors, etc. are bored on the two faces of the resin molding body.

The invention discloses an objective evaluation method of no-reference video quality weighted by key frame image quality. The method comprises the steps of: firstly, preliminarily selecting a key frame according to a movement intensity method weighed by a human eye interest, then dividing the preliminarily selected key frame into a scene switching type key frame and a non-scene switching type key frame by correlation analysis; evaluating image quality of the non-scene switching type key frame, subdividing the non-scene switching type key frame into a content change type key frame and a quality change type key frame according to an evaluation result; finally carrying out weighted summation calculation on single frame quality by using a duration factor and a deterioration frequency factor of the quality change type key frame, and obtaining the quality evaluation result of an entire video sequence. According to the objective evaluation method, the defect that then existing evaluating technology cannot be coincided with an actual subjective feeling; computation complexity can be reduced on the premise of ensuring the evaluating performance; the objective evaluation method is suitable for automatic evaluation of various video applications of an existing network, simple in operating steps and easy to integrate.

A plurality of differing horizontal pairs of slot shapes are positioned in the upper body portion of a quick change type bit holder to provide access to a bit extractor tool for removing the bit holder from its associated bit block.

The invention discloses a variable weight type random scheduling method based on real-time working conditions; the scheduling method optimizes the problem of the dynamic random rescheduling in terms of classification of various perturbation, rescheduling driving mechanism, the construction of rescheduling majorized set, the selection rule of the workpieces to be processed and rescheduling optimization algorithm, classifies various perturbation in the production process into two classes of invisible perturbation and dominant perturbation, adopts corresponding rescheduling driving mechanisms according to different types of perturbation, thus quickly and effectively dealing with various uncertain problems which randomly occur in the production process; the scheduling method is suitable for the mode with a plurality of varieties and single-piece small lot production, can rapidly and effectively handle the various uncertain problems which randomly occur in the production scheduling process and has strong coupling capacity with the real-time working conditions, thus being capable of improving the self-adaptability of a workshop production system to the uncertain working conditions and the agility of production scheduling, reducing unnecessary rescheduling, enhancing reaction capacity to the working conditions and lowering the loss of the production system brought by the various uncertain problems.

The invention provides a Python code change reminding method based on abstract syntax tree node change extraction. The method comprises the following steps of: (1) obtaining source code of different-version programs of the same software; (2) generating abstract syntax trees corresponding to two versions of source programs; (3) matching the abstract syntax trees to obtain a change node, and combining change node context information to mark the node change type; (4) gathering change tuples into transactions to construct a training set; (5) mining the association relationship in the change tuples by using a data mining technology; and (6) reminding a developer of possibly occurring change positions and possible change types in the according to the programs mined association relationship. The Python code change reminding method solves the problems that in the prior art, the possible code change type cannot be reminded due to the lack of software evolution analysis aiming at the python language, and the like. The management of the software life cycle is further guided, and the software evolution controllability is improved, so that the quality of a software product can be well controlled.

The invention discloses a combined quick-changing type transmission mechanism teaching aid, and belongs to the field of education teaching instruments or demonstration tools. The teaching aid comprises a motive power platform and a transmission mechanism, wherein the motive power platform comprises a vertically arranged fixed panel; a motor, a worm and gear component, a bevel gear component, a chain wheel and an output shaft are arranged on the fixed panel; the worm and gear component is positioned right above the motor and is connected with a motor belt; the worm and gear component is in shaft connection with the bevel gear component; the chain wheel and the bevel gear component are arranged relative to the fixed panel and are in shaft connection with each other through the bevel gear; the chain wheel is connected with the output shaft through a chain; and the output shaft is connected with the transmission mechanism. Tape transmission, worm and gear transmission, bevel gear wheel transmission and chain transmission are performed on the motive power platform. Through the adoption of the various combinations, the teaching aid has the advantages that various experimental demonstrations such as gear train, crank connecting rod and sliding block and gear show processing can be realized; the experimental devices can be demounted and mounted quickly; and the mechanical transmission experiment teaching is facilitated.

A programmable logic circuit includes: an input circuit configured to receive a plurality of input signals; and a programmable cell array including a plurality of unit programmable cells arranged in a matrix form, each of the unit programmable cells including a first memory circuit of resistance change type including a first transistor and a second memory circuit of resistance change type including a second transistor, the first and second memory circuits connected in parallel, each gate of the first transistors on same row respectively receiving one input signal, each gate of the second transistors on same row receiving an inverted signal of the one input signal, output terminals of the first and second memory circuits on same column being connected to a common output line.

The present invention discloses an electronic map data manufacturing and updating method and apparatus, to reduce processing time of electronic map update and improve efficiency of the electronic map update. The electronic map data manufacturing method comprises: for a map element in an electronic map, generating a feature identifier of the map element according to location information of the map element; and establishing a correspondence between the map element and the corresponding feature identifier. The electronic map updating method comprises: for a same type of map elements in an electronic map, comparing feature identifiers corresponding to this type of map elements in a to-be-updated target data table and a source data table that provides an update data source, to obtain a changed map element; separately determining a change type of the changed map element in a data table to which the map element belongs; and updating the target data table according to the determined change type of the map element in the data table to which the map element belongs.

Lidar point clouds and multi-spectral aerial images are integrated for change detection of building models. This reduces errors owing to ground areas and vegetation areas. Manifold change types are detected with low cost, low inaccuracy and high efficiency.

The invention discloses a method for detecting remote sensing image change based on non-parametric density estimation, which mainly solves the problem that the estimation to the statistic items which relevant to a change type and a non-change type in a differential chart in the prior art has error. The realizing process of the method is that inputting two remote sensing images with different time-phase, removing noise of each channel of each image, obtaining noise-removing images of the two time-phase, and constructing difference images through adopting the change time-vector method, gathering the difference images into change type and a non-change type through applying K-means clustering algorism, obtaining the initial sorting results, and estimating the statistic items relevant to the change type and the non-change type in differential images through adopting non-parameter density estimation, carrying out the self-adapting space restriction combining the variable weight markov random field model, and obtaining the final change detecting results. The experimentation shows that the invention can effectively keeps the structure information of the images, removes insulation noise, improves the change detection processing efficiency, and can be used for the fields of disaster surveillance, land utilization and agriculture investigation.

The invention discloses a solar selective absorption coating comprising a bonding layer, an infrared reflection layer, a diffusion stopping layer, an absorption layer and an antireflection layer, wherein the absorption layer is formed by at least two layers of metal ceramic absorption layers; the at least two layers of metal ceramic absorption layers are composite material thin films formed by doping metal atoms in ceramic; the middle metal volume content in a film layer is the highest and the metal volume content is gradually reduced from middle to two boundary directions; and the metal volume content between the adjacent two metal ceramic absorption layers with different average metal volume contents has an obvious interface. Compared with gradually-changed type and interference type solar selective absorption coatings, the metal volumes of the absorption layers are gradually changed and have the characteristic that the gradually-changed type solar selective absorption coating can easily absorb a solar spectrum; and meanwhile, the obvious interface exists between the absorption layers, the absorption layers have phase interference of lights, and the sunlight absorption is increased.

The invention provides a graphene and rare earth up-conversion fluorescent composite material and a preparation method thereof. The method comprises the steps of: using a graphite powder as a raw material to prepare graphite oxide by a Hummer method; conducting ultrasonic dispersion on 5-85mg of graphite oxide into 24-60mL of water; then adding Y (NO3), Yb (NO3) and Er (NO3) in a total molar weight of 0.05-1mmol by a stoichiometric ration of 78:20:2 into the graphite oxide dispersion; adding 0.02-0.5g of NaF and stirring for 5-10min; transferring the mixture to a 100mL reactor; reacting for 4-24h at 200-240 DEG C; naturally cooling to room temperature; centrifuging for separation and washing the reaction product with deionized water twice to obtain a graphene and yttrium fluoride up-conversion fluorescent powder composite material, which comprises a mixture of two or three selected from the followings: graphene-YF3:Yb, Er; graphene-(alpha) NaYF4:Yb, Er; and graphene-(beta) NaYF4:Yb, Er. The method provided by the invention is simple, employs non-toxic raw materials, and can change type of the earth up-conversion fluorescent material and up-conversion fluorescence properties of a final composite material by simply adjusting conditions of a hydrothermal reaction.

A resin molding body has two faces (front face 15 and lower face 19) perpendicular to each other, and also has a total reflecting face 23 approximately having an angle of 45° with respect to these two faces. Plural collimating lenses 16 and a spacer 17 are integrally formed on one face. Plural collimating lenses 20 and a spacer 21 are also integrally formed on the other face. A wall taking-away portion 26 is concavely arranged between the two faces so as to be located on the rear face side of the total reflecting face 23. Guide holes 18, 22 for inserting guide pins thereinto and connected to optical connectors, etc. are bored on the two faces of the resin molding body.

A resistance change memory device including: a cell array having a resistance change type of memory cells disposed at the cross-points of word lines and bit lines, the resistance value of the memory cell being reversibly settable; a word line driver circuit configured to apply a selecting drive voltage to one selected in the word lines; and a bit line driver circuit configured to drive multiple bit lines in such a manner that a set mode and a reset mode are set simultaneously for multiple memory cells selected by the selected word line, the set mode being for changing a selected memory cell from a first resistance state into a second resistance state while the reset mode is for changing a selected memory cell from the second resistance state into the first resistance state.

A resistance change memory device includes a cell array having multiple layers of mats laminated thereon, each of the mats having word lines and bit lines intersecting each other as well as resistance change type memory cells arranged at intersections thereof, each of the mats further having therein a reference cell and a reference bit line connected to the reference cell, the reference cell set to a state of a certain resistance value; a selection circuit configured to select a word line in each mat of the cell array, and select a bit line intersecting a selected word line and the reference bit line at the same time; and a sense amplifier configured to sense data by comparing respective cell currents of a selected memory cell on the selected bit line and the reference cell on the reference bit line.