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685results about How to "Avoid transport" patented technology

Method of controlling heavy metal cadmium accumulation of paddy

The invention discloses a method for controlling the accumulation of heavy metal cadmium in rice, and belongs to the technical field of rice planting. The method comprises the following steps of: (1) before the land preparation for seedling transplanting, applying a divalent manganese chelate in soil and uniformly mixing the divalent manganese chelate and the soil; (2) during a period from 15 to 20 days after seedling transplanting to 35 to 45 days after the seedling transplanting, spraying aqueous solution of a divalent manganese fertilizer once every other 7 to 10 days; (3) spreading the divalent manganese chelate in the early booting stage and the grouting stage of the rice respectively; (4) irrigating the paddy land within 3 to 5 days after the soil application of the divalent manganese chelate; (5) from the earing period of the rice to the ripening period of the rice, spraying the aqueous solution of the divalent manganese fertilizer once every other 7 to 10 days; and (6) after the soil application of the divalent manganese chelate, applying the divalent manganese chelate in the same way each year, but with an application rate which is reduced by half or three quarters. The method adopts soil application and leaf surface spraying application of the divalent manganese fertilizer and is more effective. The method is wider in application range, more economic and effective and is capable of improving the mineral nutrient element content of the rice and overcoming the adverse effects of the prior art.
Owner:CHINA NAT RICE RES INST

Device for detecting wave front of large-aperture optical system

The invention relates to a device for detecting the wave front of a large-aperture optical system. The device comprises an interferometer, a five-dimensional adjustment platform, a numerical-control turntable, a numerical-control electric displacement platform, a self-collimation standard plane mirror, a two-dimensional adjustment rack and a computer control and data processing system. The device is characterized in that: the wave front of the large-aperture optical system is divided into a plurality of sub-aperture wave fronts, the interferometer and the self-collimation standard plane mirror detect the sub-aperture wave fronts of the large-aperture optical system, the numerical-control turntable and the numerical-control electric displacement platform control the standard plane mirror to move so as to scan the sub-aperture wave fronts, the interferometer detects and records the sub-aperture wave fronts, so that the detected sub-aperture wave fronts cover the whole large-aperture optical system; and the computer control and data processing system stitches the sub-aperture wave fronts through algorithms, so that the full-aperture wave front of the large-aperture optical system is obtained, and the detection on the wave front of the large-aperture optical system is finished. The device has the advantages of simple structure, low cost and capability of detecting the image quality of the wave front of a large-aperture optical system with the aperture of not less than 1000 mm.
Owner:INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI

Driver qualification confirmation system and method based on face recognition

The invention provides a driver qualification confirmation system based on face recognition. The system comprises a video collection unit, a driving license recognition unit, a face image recognition unit, a data processing unit, a display alarm unit, a driver database, a center data processing unit and a data transmission unit, wherein the video collection unit, the driving license recognition unit, the face image recognition unit, the data processing unit and the display alarm unit are arranged inside a cab; the driver database, the center data processing unit and the data transmission unit are arranged in the center; the video collection unit collects driver face image data and driving license data; the face recognition unit recognizes the collected driver face images meeting the requirement, and determines whether a driver photo on a driving license is consistent with the face image of a driver or not; the driving license recognition unit sends the recognized driving license number and the photo of a licensee to a center processing unit of a management center; the center processing unit searches the driver database, determines whether the driving license is valid or not, and determines whether the driving license has the driving qualification or not currently. Therefore the driver without the driving qualification is effectively prevented from continuing to drive a vehicle, and safety and reliability of traffic transportation are improved.
Owner:国通道路交通管理工程技术研究中心有限公司 +1
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