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Unit for processing numeric and logic operations for use in central processing units (CPUS), multiprocessor systems, data-flow processors (DSPS), systolic processors and field programmable gate arrays (FPGAS)

An expanded arithmetic and logic unit (EALU) with special extra functions is integrated into a configurable unit for performing data processing operations. The EALU is configured by a function register, which greatly reduces the volume of data required for configuration. The cell can be cascaded freely over a bus system, the EALU being decoupled from the bus system over input and output registers. The output registers are connected to the input of the EALU to permit serial operations. A bus control unit is responsible for the connection to the bus, which it connects according to the bus register. The unit is designed so that distribution of data to multiple receivers (broadcasting) is possible. A synchronization circuit controls the data exchange between multiple cells over the bus system. The EALU, the synchronization circuit, the bus control unit, and registers are designed so that a cell can be reconfigured on site independently of the cells surrounding it. A power-saving mode which shuts down the cell can be configured through the function register; clock rate dividers which reduce the working frequency can also be set.
Owner:PACT +1

H.264/AVC standard-based intra-frame prediction mode selection method

The invention discloses an H.264/AVC standard-based intra-frame prediction mode selection method which mainly solves the problems of complex intra-frame mode selection and difficulty in realizing hardware in parallel of the traditional H.264/AVC standard. The H.264/AVC standard-based intra-frame prediction mode selection method comprises the steps of: firstly, carrying out primary selection on all prediction modes of a 4*4 subblock and a 8*8 subblock by using an SATD (Sum Of Absolute Transformed Difference) to obtain four candidate prediction modes; carrying out rate distortion optimization (RDO) on the four candidate modes to select an optimal prediction mode; then replacing DCT with KL transformation during transformation; and finally, carrying out code rate estimation by using CAVLC (Context-based Adaptive Variable Length Coding) instead of CABAC (Context-Based Adaptive Binary Arithmetic Coding). According to the invention, the speed of intra-frame mode selection of the H.264/AVC standard is increased, hardware is easily realized rapidly and in parallel in the intra-frame mode selection of the H.264/AVC standard, and the H.264/AVC standard-based intra-frame prediction mode selection method can be used in an intra-frame prediction process in the H.264/AVC standard.
Owner:XIDIAN UNIV

Method and device for selecting multiple articles in list interface of intelligent terminal device

The invention discloses a method and device for selecting multiple articles in a list interface of an intelligent terminal device, and belongs to the technical field of touch control. The method includes the steps of in the list interface, when the situation that a touch control interface of the intelligent terminal device is pressed through a first touch control medium and a second touch control medium is detected, enabling the intelligent terminal device to trigger a multi-selection command, calculating first coordinates of the touch control position of the first touch control medium and second coordinates of the touch control position of the second touch control medium according to the multi-selection command, obtaining the first article which is displayed on the list interface and corresponds to the first coordinates and the second article which is displayed on the list interface and corresponds to the second coordinates, triggering a first selection command, and selecting the first article, the second article and all the articles located between the first article and the second article according to the first selection command. According to the method and the device, a user can easily, conveniently and rapidly complete a multi-selection task by directly carrying out dual-touch-control-medium pressing operation on the list interface, and the use efficiency of the user is improved.
Owner:HANVON CORP

Cold region active ventilation cooling self-recovery slope anchorage structure and construction method

ActiveCN104452782AStrong convective heat transfer capacityGood cooling effectExcavationsBulkheads/pilesAgricultural engineeringSelf recovery
The invention belongs to the field of cold region slope support and discloses a cold region active ventilation cooling self-recovery slope anchorage structure and a construction method. The cold region active ventilation cooling self-recovery slope anchorage structure comprises a framework, ventilation anchor pipes and a ventilation system. The ventilation anchor pipes are formed in the mode that anchor pipes are nested in ventilation pipes coaxially through positioning rings and the ventilation pipes are coaxially sleeved with exhaust pipes. The ventilation system is composed of fans, temperature control switches and solar panels, all of which are connected through wires. Slurry is injected into the anchor pipes, passes through slurry outlet holes and is bonded with surrounding stable frozen soil; geogrids, drain pipes and the framework are constructed on the slope surface, and the ventilation anchor pipes penetrate through the framework; the front section of each ventilation anchor pipe is sleeved with a flange base plate and a spring sequentially and is fixed on the framework through an anchorage device; plants are planted in the geogrids, and a drain channel is arranged at the slope toe; the fans are installed at the front sections of the anchor pipes, the temperature control switches and the solar panels are arranged on the framework, and the fans, the temperature control switches and the solar panels are connected through the wires. The cooling effect is remarkable due to automatic air supply, the swelling reduction, shock absorption and self-recovery functions are remarkable, water is drained in time, and development of frozen soil is promoted due to the geogrid slope surface and the plants; the method is easy and convenient to implement, and construction is rapid.
Owner:LANZHOU UNIVERSITY OF TECHNOLOGY

Pavement grooving machine

The invention relates to a pavement grooving machine. The pavement grooving machine comprises a grooving device mounted at the front end of a driving device, wherein the driving device comprises a power station housing; a diesel tank, an electric control cabinet, a hydraulic control cabinet and a hydraulic oil tank are mounted in front of the power station housing; a diesel engine and an oil pump are mounted in the power station housing; caterpillar tracks are mounted below the power station housing and are driven by a hydraulic motor; the grooving device comprises a cutting wheel mounted on a cutting wheel bracket; the cutting wheel is driven by the hydraulic motor; a slag removal plate and a dustproof cover are mounted on the cutting wheel bracket; the slag removal plate is positioned in front of the cutting wheel; the dustproof cover is positioned behind the cutting wheel; a slag outlet is formed in the side surface of the cutting wheel bracket; the cutting wheel bracket is connected with the front end of the driving device through a sliding frame. The pavement grooving machine is small in size, light in weight and convenient to operate, is used for paving a cable and a pipeline, and is efficient and environment-friendly; grooves can be conveniently and quickly formed under the conditions of pavements such as concrete pavements and asphalt pavements; the pavements are protected and do not need to be grooved manually; meanwhile, the pavement grooving machine is provided with the dustproof cover, and raised dust during working can be effectively prevented.
Owner:苏州科艺油气工程设备服务有限公司

Method for quickly planting sophora davidii

InactiveCN101822193AReforestation fastShorten the afforestation cycleSeed and root treatmentClimate change adaptationRevegetationBud
The invention discloses a method for quickly planting sophora davidii. The method comprises the following steps of: A, seeds collection, namely, storing the seeds in a dry and ventilated room; B, nursery garden selection, namely, flattening, ploughing under to great depth, fertilizing, bedding, irrigating and preparing to plant; C, soil preparation and nutritional soil allocation, namely, preparing seedbed and flattening bed surface; D, bud forcing treatment before sowing, namely, sterilizing the seeds by using 0.5 percent solution of potassium permanganate before sowing; E, sowing, namely, spring sowing, sowing in line, sowing by drilling ditch and watering to remain floor wet; F, seedling management, spraying the solution of potassium permanganate at the seedling stage, spraying continuously, preventing grub underground insects at the young seedling stage and seedling for sell; and G, tree planting, namely, tree planting in spring and autumn, selecting biennial nursery stock to cut branches at the 10-centimeter distance away from the root and digging 40-centimeter depth pits to plant, wherein 269 to 333 plants are planted per mu. The method has the advantages of realizing rapid afforestation of the sophora davidii in a shot time and achieving the ecological benefit of vegetation recovery and water and soil conservation and the economic benefit of green manure and feed development, along with simple and convenient operation and quick effect.
Owner:WUHAN BOTANICAL GARDEN CHINESE ACAD OF SCI
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