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295 results about "Unit size" patented technology

Basically, the allocation unit size is the block size on your hard drive when it formats NTFS. If you have lots of small files, then it’s a good idea to keep the allocation size small so your harddrive space won’t be wasted. If you have lots of large files, keeping it higher will increase the system performance by having less blocks to seek.

Density detection using real time discrete photon counting for fast moving targets

A system for detecting and graphically displaying a contents of a fast-moving target object comprises: a radiation source, having a position such that at least a portion of radiation emitted from the radiation source passes through the fast-moving target object, the fast-moving target object having a variable velocity and acceleration while maintaining a substantially constant distance from the radiation source and being selected from the group consisting of: a vehicle, a cargo container and a railroad car; a velocity measuring device configured to measure the variable velocity of the fast-moving target object; a detector array comprising a plurality of photon detectors, having a position such that at least some of the at least a portion of the radiation passing through the target object is received thereby, the detector array having a variable count time according to the variable velocity and a grid unit size; a counter circuit coupled to the detector array for discretely counting a number of photons entering individual photon detectors, the counter circuit measuring a count rate according to a contents within the fast-moving target object; a high baud-rate interface coupled to the counter circuit for sending count information from the counter circuit at a rate fast enough to support real-time data transfer therethrough; and a processor coupled to the velocity measuring device and to the high-baud-rate interface, receiving count information from the high baud-rate interface and generating distortion-free image data in real time as a function of the count information and the variable velocity. A method for using the system is also disclosed.
Owner:LEIDOS

Learning-based high efficiency video coding method

The invention discloses a learning-based high efficiency video coding method. The method comprises the following steps: coding a video sequence by a high efficiency video coder, and extracting feature vectors corresponding to coding unit blocks; inputting the extracted feature vectors and an optimal coding unit size into a three-value-output learning machine, and building a learning model; adding an early-abort strategy structure into a selection process of coding unit sizes in the high efficiency video coder, executing a skip mode current block and a merge mode current block firstly, and extracting feature vectors corresponding to corresponding current coding; inputting the feature vectors into a learned learning machine model, outputting a prediction value, and executing the current coding unit size according to the corresponding early-abort strategy structure till all coding unit layers in coding tree units are coded; and performing repeated execution till the coding tree units in all video frames are coded. By adoption of the method, an optimal coding process can be output correspondingly according to a rate-distortion cost and calculation complexity; the learning performance and classifying performance of a classifier are improved; and the coding efficiency of video coding is increased.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI

Asphalt mixture fatigue test numerical simulation method based on random generation

The invention discloses an asphalt mixture fatigue test numerical simulation method based on random generation. The method comprises the steps of randomly generating a test piece; determining the particle number, grading and irregular shape of coarse aggregates according to the test piece to be formed; determining that the coarse aggregates are not overlapped; generating irregular coarse aggregates; determining the minimum discrete unit size of bituminous mortar; filling the bituminous mortar; determining bituminous mortar grading and the dosage of asphalt in bituminous mortar according to the grading of an asphalt mixture; acquiring relative material parameters according to a bituminous mortar creep test and a spitting test; determining void ratio and void distribution and generating voids; conducting fatigue test numerical simulation; determining a virtual loading mode; conducting loading with a servo mechanism; conducting fatigue failure judgment. Through random test piece generation, three-dimensional configuration reconstruction of the asphalt mixture is achieved. By the adoption of the method, three-dimensional reconstruction of various grading levels, various void ratios and various asphalt mixtures can be achieved, and digital test piece reconstruction efficiency and accuracy are improved greatly.
Owner:SOUTHEAST UNIV

Method and device for measuring grain loss spatial distribution of combine harvester

InactiveCN102138383ARealize real-time quantitative monitoringEasy to distinguishMowersSignal conditioning circuitsUnit size
The invention relates to a method and device for measuring grain loss spatial distribution of a combine harvester. The method comprises the following steps of: providing an array type sensor; mounting the array type sensor at a position of the combine harvester with loss to be measured; converting impacting force of seed, short stalk and light impure materials to the surface of the sensor into an electric signal; providing a signal regulating circuit to process the signal provided by the array type sensor in real time; distinguishing the signals of the seed from other material signals; pulse-counting; providing a single-chip processor to count the loss amount of each array unit based on the value in pulse counting, and calculating the grain loss spatial distribution information based on the unit size and the distribution information of the array type sensor; providing a display device to receive the grain loss spatial distribution information through a serial port; and displaying the information in real time. By use of the method and the device for measuring grain loss spatial distribution of the combine harvester, the grain and grass can be effectively distinguished, the grain loss spatial distribution information can be obtained, and quantitative monitoring of the grain loss in real time can be realized.
Owner:CHINESE ACAD OF AGRI MECHANIZATION SCI

Data storage method for sparse matrix and method for realizing SpMV based on same

The invention discloses a data storage method for a sparse matrix and a method for realizing sparse matrix-vector multiply (SpMV) based on the same. The data storage method comprises the following steps of: A, scanning the sparse matrix according to the line number with preset queue unit size, and storing a non-zero element value of a line of a non-zero element into a non-zero element array val when the non-zero element is scanned; and B, calculating a queue value difference, judging the type of the queue value difference of the non-zero element queue unit, taking the queue units with the same queue value difference type as the same queue group, and storing the queue group information to an index array. The method for realizing the SpMV comprises the following steps of: 1) calculating the queue value of the queue unit according to the queue value difference type; 2) reading a corresponding x variable according to the queue value, and multiplying the corresponding x variable by an element in the val; 3) accumulating a result which is calculated by each queue unit in the queue group, and saving in a result array; and 4) continuously reading the queue value difference type of the next queue group. By the method, zero element filling is reduced, and operation of realizing the SpMV and operation efficiency of storing access operation are improved.
Owner:INST OF SOFTWARE - CHINESE ACAD OF SCI

County-level crop planting area remote sensing statistic sampling survey scheme design method

InactiveCN107527014AAccurately obtain planting area statisticsRealize refined transformationImage enhancementImage analysisUnit sizeRandom combination
The invention discloses a county-level crop planting area remote sensing statistic sampling survey scheme design method. Multi-period up-to-date GF-1 16-meter-width images are adopted as a data source; a decision tree classification method is constructed to perform automatic interpretation, so that the spatial distribution condition of crops in a research area can be obtained; with the spatial distribution data of the crops adopted as a sampling population, on the basis of the arable land area and crop planting scale of the research area, a PPS sampling method is adopted to select a general survey region; various sample unit sizes and various sample unit quantities are designed in the selected general survey region, the quadrat unit sizes, quadrat sample unit quantities, sampling methods and calculation methods are combined randomly, the calculation results of the statistic sampling survey schemes of different combinations are compared with the planting area of target crops which is obtained through the data interpretation of GF-2 0.8-meter-resolution images; and analysis is performed according to the overall sampling accuracy, sampling stability and minimum sample capacity of result data, and a remote sensing statistic sampling survey scheme most suitable for the target crops of the research area can be obtained.
Owner:武汉珈和科技有限公司

Resource allocation method and equipment in communication system

The application discloses a resource allocation method and equipment in a communication system. The method comprises the following steps: a terminal determines the first frequency domain resource unitsize according to configuration information; the configuration information comprises predefined first configuration information; or the configuration information comprises second configuration information sent to the terminal by the base station; or the configuration information comprises the first configuration information and the second configuration information; the terminal determines resource allocation related parameter according to the first frequency domain resource unit size; the terminal determines the first frequency domain resource unit size according to the predefined first configuration information, or determines the first frequency domain resource unit size according to the second configuration information indicated by the base station, or determines the first frequency domain resource unit size according to the second configuration information indicated by the base station and the first configuration information predefined by the terminal, thereby realizing the configurable size of the first frequency domain resource unit. Under the big bandwidth or new application demand scene, the resource allocation granularity flexible configuration can be realized so as to satisfy different service demands.
Owner:HUAWEI TECH CO LTD
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