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34results about How to "Troubleshoot visualization issues" patented technology

Internet-based cross-media landmark historical event extraction and picture retrieval method

The invention provides an Internet-based cross-media landmark historical event extraction and picture retrieval method. The method comprises two steps of historical event extraction and cross-media picture retrieval based on historical events. Events can be collected from tag sets of photo-sharing websites and extracted from articles in related landmark introduction websites. The extraction of events from tag sets can be realized by utilizing the frequency of each tag in time to select an optimal partition interval of the tags within the time range, obtaining a sudden weight of each tag by an age theory, and performing tag clustering on tags with high sudden weights, wherein each cluster forms an event. Cross-media picture retrieval based on events can be realized by using time constraints and event keywords to retrieve picture sets to obtain an initialized picture ranking result, establishing a model by utilizing visual mode difference between related pictures and irrelevant pictures, removing irrelevant pictures in a retrieval result, and finally establishing a reordering model by using the relativity and diversity of pictures as the constrain to find a corresponding and representative picture set for each event, so as to realize the visualization of the landmark historical events.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI

Intelligent system for testing fixed broadband internet quality

The invention discloses an intelligent system for testing the fixed broadband internet quality. The intelligent system comprises an intelligent broadband client testing terminal, an intelligent mobile-phone management APP, a remote server crowd, a database and a management portal. The management portal is connected with the database, the database is connected with the remote server crowd, the remote server crowd is respectively connected with the intelligent mobile-phone management APP and the intelligent broadband client testing terminal, and the intelligent mobile-phone management APP is connected with the intelligent broadband client testing terminal. The intelligent system for testing the fixed broadband internet quality has the advantages that automation of quality testing of internet broadband is achieved, traditional artificial participation broadband testing is faultlessly replaced, the cost is low, and the efficiency is high; standardization and collecting intelligentization of testing are guaranteed, intelligentizing remote upgrading can be achieved, and the business expansibility of internet broadband testing is achieved; mobile phone APP operating is matched, self registration of a testing user is completed, the data source problem of a user bandwidth rate is solved, a geographic information map of a broadband-quality testing points is formed, and the visual problem that traditional-broadband testing points is solved.
Owner:杭州赛客网络科技有限公司

Simulation test device and method for multi-angle tilt drilling grouting technology for coal seam bottom plate under effect of pressure-bearing flowing water

ActiveCN109441441AEasy to observeOptimization of grouting processSealing/packingWater sourceOpen source
The invention discloses a simulation test device and method for a multi-angle tilt drilling grouting technology for a coal seam bottom plate under the effect of pressure-bearing flowing water. The simulation test device comprises a test rack, a pressure-bearing aquifer water source applying device, multi-angle drilling and different hole diameter fracture simulation devices and a grouting device;the test rack is used for bearing the multi-angle drilling and different hole diameter fracture simulation device; the multi-angle drilling and different hole diameter fracture simulation devices aredivided into multiple sets according to drilling angles and the sizes of fractures; the pressure-bearing aquifer water source applying device comprises a constant-pressure water pump, a water pressureadjusting valve, an open source fracture and sealed fracture control valve and a flowmeter; and the grouting device comprises a grouting machine, a safety valve, a slurry flushing valve, a grouting channel valve, a grouting hole selecting switch and a disassembly-free flushing valve. According to the simulation test device, simulation of a grouting process layout process, simulation of a dynamicprocess of slurry flowing to diffusion, simulation of drilling tilt angles to the slurry diffusion influence, and scenario simulation of precipitation and condensation mechanisms can be achieved.
Owner:NORTH CHINA INST OF SCI & TECH

Cleavage type universal-partition ultrafast-amplification visual sensor for chromium ions

The invention provides a cleavage type universal-partition ultrafast-amplification visual sensor for chromium ions. The visual sensor comprises (1) a cleavage system, (2) a sPCR amplification system and (3) a detection system containing an ABTS developing solution. According to the invention, primers, a template and probes are ingeniously designed, so ultrafast amplification of the template can berealized in the presence of chromium ions, and an amplification product is allowed to form a G-quadruplex in a proper environment; and color development is performed by utilizing the peroxidase-likeactivity of the G-quadruplex. Thus, the problem of difficulty in realizing visual detection of traditional PCR products is overcome, and rapid and visual detection of chromium ions is realized. Moreover, the sensor provided in the invention has the characteristics of high specificity and high sensitivity to chromium ions, and is more objective and accurate in detection results.
Owner:CHINA AGRI UNIV

An Intelligent System for Quality Testing of Fixed Broadband Internet

The invention discloses an intelligent system for testing the fixed broadband internet quality. The intelligent system comprises an intelligent broadband client testing terminal, an intelligent mobile-phone management APP, a remote server crowd, a database and a management portal. The management portal is connected with the database, the database is connected with the remote server crowd, the remote server crowd is respectively connected with the intelligent mobile-phone management APP and the intelligent broadband client testing terminal, and the intelligent mobile-phone management APP is connected with the intelligent broadband client testing terminal. The intelligent system for testing the fixed broadband internet quality has the advantages that automation of quality testing of internet broadband is achieved, traditional artificial participation broadband testing is faultlessly replaced, the cost is low, and the efficiency is high; standardization and collecting intelligentization of testing are guaranteed, intelligentizing remote upgrading can be achieved, and the business expansibility of internet broadband testing is achieved; mobile phone APP operating is matched, self registration of a testing user is completed, the data source problem of a user bandwidth rate is solved, a geographic information map of a broadband-quality testing points is formed, and the visual problem that traditional-broadband testing points is solved.
Owner:杭州赛客网络科技有限公司

Cadmium ion cutting type universal type isolating superfast amplification visualization sensor

The invention provides a cadmium ion cutting type universal type isolating superfast amplification visualization sensor. The cadmium ion cutting type universal type isolating superfast amplification visualization sensor comprises 1, a cutting system, 2, a sPCR amplification system, and 3, a detection system containing ABTS color developing solution. According to a preparation method, skilful design of primers, templates, and probes is adopted, so that in the presence of cadmium ions, template superfast amplification is realized, a G-quadruplex is formed in an appropriate environment from amplification products; and the G-quadruplex peroxidase activity is adopted in color development, so that a difficult problem in the prior art that visualization detection of conventional PCR products is difficult to realize is solved, and rapid visualization detection on cadmium ions is realized. And in addition, the cadmium ion cutting type universal type isolating superfast amplification visualization sensor is high in specificity and sensitivity on cadmium ions, so that detection results are more objective and accurate.
Owner:CHINA AGRI UNIV

Extraction of historical events based on Internet cross-media landmarks and search method for related pictures

The invention provides an Internet-based cross-media landmark historical event extraction and picture retrieval method. The method comprises two steps of historical event extraction and cross-media picture retrieval based on historical events. Events can be collected from tag sets of photo-sharing websites and extracted from articles in related landmark introduction websites. The extraction of events from tag sets can be realized by utilizing the frequency of each tag in time to select an optimal partition interval of the tags within the time range, obtaining a sudden weight of each tag by an age theory, and performing tag clustering on tags with high sudden weights, wherein each cluster forms an event. Cross-media picture retrieval based on events can be realized by using time constraints and event keywords to retrieve picture sets to obtain an initialized picture ranking result, establishing a model by utilizing visual mode difference between related pictures and irrelevant pictures, removing irrelevant pictures in a retrieval result, and finally establishing a reordering model by using the relativity and diversity of pictures as the constrain to find a corresponding and representative picture set for each event, so as to realize the visualization of the landmark historical events.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI

Copper ion cutting type universal partition superfast amplification visual sensor

The invention provides a copper ion cutting type universal partition superfast amplification visual sensor. The copper ion cutting type universal partition superfast amplification visual sensor comprises: (1) a cutting system; (2) an sPCr amplification system; (3) an HCR system; and (4) a detection system containing ABTS developing liquid. A primer, a template and a probe are designed cleverly, sothat the template is subjected to superfast amplification under the existence of the copper ion; and the amplification product promotes HCR reaction, so that the product forms a G-quadruplex under the proper environment. The peroxidase-like activity of the G-quadruplex is further utilized to develop, so that the problem that the traditional PCR product is difficult in visual detection is solved and rapid and visual detection of the copper ion is realized. More than that, the sensor provided by the invention has the characteristics of high specificity and high sensitivity; and the detection result is more objective and accurate.
Owner:CHINA AGRI UNIV

Grass trimmer

ActiveCN113491194ARealize support and protectionAvoid curlMowersAgricultural engineeringStructural engineering
The invention belongs to the technical field of grass trimmers, and discloses a grass trimmer. The grass trimmer comprises a connecting rod, a grass trimming head and an operating portion, wherein one end of the connecting rod is connected with the grass trimming head, the other end of the connecting rod is connected with the operating portion, and the grass trimming head comprises a grass trimming rope, a reel, a shell and a streamline protection structure; the reel is used for winding the grass trimming rope and can rotate around a first axis; the shell is provided with an accommodating cavity for accommodating at least part of the reel, and a threading hole for the grass trimming rope to extend out of the outer side of the shell is formed in the shell; and the streamline protection structure comprises a head part and a tail part and is provided with a through channel for the grass trimming rope to penetrate through, the head part is connected to the shell, and the through channel is used for connecting the grass trimming rope penetrating out of the threading hole and enabling the grass trimming rope to be exposed out of the tail part of the protection structure. By arranging the protection structure, the supporting and protecting effects on the grass trimming rope are achieved, the grass trimming rope can be prevented from being curled, and the risk that the grass trimming rope is broken from the root is reduced; the problem of visualization of the grass trimming rope is solved; and meanwhile, the streamline protection structure can effectively reduce pneumatic noise generated when the grass trimming rope works.
Owner:NANJING CHERVON IND
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