Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

31results about How to "Operability" patented technology

Performance degradation testing method of insulated gate bipolar transistor

The invention belongs to the technical field of testing and relates to a performance degradation testing method of an insulated gate bipolar transistor. According to the method, the insulated gate bipolar transistor is taken as an object, a programmable pulse generator, a programmable electronic switch, a programmable digital universal meter, a power resistor, a working resistor and a direct current power supply are utilized, and offset values of conduction saturation voltage of the insulated gate bipolar transistor along with the impact number of times of short-circuit current under different short-circuit current values can be obtained through short-circuit current impact and further used as performance degradation data of the insulated gate bipolar transistor. According to the method, the accurate performance degradation data of the insulated gate bipolar transistor caused by short-circuit current can be obtained within a short period of time, and the data can be utilized for accurately predicting the failure time of the insulated gate bipolar transistor in the using process so as to take measures in time before the failure of the insulated gate bipolar transistor, prevent serious faults caused by the failure of the insulated gate bipolar transistor and further reduce the economic loss.
Owner:CHINA AERO POLYTECH ESTAB

Visualization arrangement method for resources in OpenStack cloud platform

The invention provides a visualization arrangement method for resources in an OpenStack cloud platform, which comprises the steps of: carrying out three levels of arrangement on the resources in the OpenStack cloud platform by using a visualization method; carrying out arrangement on infrastructure resources provided by OpenStack, and creating a basic virtual machine; carrying out complex configuration on the virtual machine and installing and configuring specific software; and providing Load Balance to carry out supporting, and creating a group of virtual machines with load balance. By visualization dragging combination on OpenStack basic resources and resources created by a user, one group of virtual machines with specific calculation, network and storage abilities are obtained, and a load balancer can be added on the virtual machines to carry out shunting on service traffic so as to improve safety and reliability of an application system. A specific application environment arrangedin a visualizing mode can be optionally led into an application center to generate a set of specific application system, and the specific application system can be subjected to version control, smoothupgrading and backspacing and supports multiple versions to be simultaneously online.
Owner:北京易捷思达科技发展有限公司

Efficiency test bed of electric-hydraulic proportional pump control motor system

An efficient test bed of the electric-hydraulic proportional pump control motor system comprises a test bed measurement and control system, a pump control motor system, an electric-hydraulic proportional servo system, an oil replenishing system, a cooling system, a resistance loading system, an engine, an electromagnetic clutch and a speed raising box. The test bed measurement and control system calculates the input power and the output power of the pump control motor system by measuring the rotating speed and the torque at the input end and the output end of the pump control motor system so that the efficiency value of the pump control motor system can be obtained. The efficiency test bed of the electric-hydraulic proportional pump control motor system has the advantages that system oil supply pressure is stable and precise, the static and dynamic performance of the test bed is improved, and the test bed has more operability and the reliability; the resistance loading system is simple and practical, and the controllability is excellent; the oil temperature is adjusted through the test bed measurement and control system, energy consumption can be better lowered, the efficiency is improved, and the precision of test data is also greatly improved.
Owner:JIANGSU UNIV

Underground comprehensive pipe gallery

The invention relates to an underground comprehensive pipe gallery. The underground comprehensive pipe gallery comprises a high-position gallery body and a low-position gallery body which are constructed under the ground. The high-position gallery body is divided into ventilating rooms, an escape channel, a power distribution room and a feeding room through first partition walls. A plurality of first inlets and outlets are formed in the first partition walls and communicate the ventilating rooms, the escape channel, the power distribution room and the feeding room. The top of each ventilating room is provided with a ventilating opening and a ventilating structure which are exposed out of the ground. The top of the escape channel is provided with an escape opening and an escape well cover which are exposed out of the ground. The top of the feeding room is provided with upper feeding openings and feeding cover plates which are exposed out of the ground. Second inlets and outlets communicating with the low-position gallery body are formed in the bottoms of the ventilating rooms, the escape channel and/or the feeding room. The low-position gallery body is internally provided with a pipeline cabin and a cable cabin. A drainage structure is arranged at the bottoms of the pipeline cabin and the cable cabin. The pipeline cabin is divided into a plurality of sub pipeline cabin bodies. The cable cabin is divided into a plurality of sub cable cabin bodies. The underground comprehensive pipe gallery is small in occupied area, convenient to install and maintain and high in management efficiency.
Owner:BERIS ENG & RES CORP

Method for producing N-alkyl-(3,4-methylenedioxy) aniline

InactiveCN101245060AReduce pollutionGood base selectivityOrganic chemistryNitrobenzeneKetone
A preparation method of N-alkyl-(3, 4-methylenedioxy) aniline relates to the method of the N-alkyl-(3, 4-methylenedioxy) aniline. 3, 4-(methylenedioxy) nitrobenzene in a pressure kettle is taken as the starting raw material, C1 to C4 lower aliphatic alcohols are taken as reaction solvents and alkylation reagents, a reductive alkylation catalyst is added, the pressure kettle is sealed, hydrogen gas is introduced for replacement, the temperature is increased, the hydrogen is introduced, the hydrogenation reaction is finished, the temperature is decreased, the pressure is relieved, then the N-alkylation reaction, the nitrogen introducing for replacement and the temperature increase reaction are continuously carried out for preparing the N-alkyl-(3, 4-methylenedioxy) aniline. In the preparation method, the hydrogenation reduction and the N-alkylation reaction are carried out in a same reaction kettle, the reduction products do not need to be separated, aldehyde and ketone alkylation reagents do not need to be added, and the N-alkylation reaction is directly carried out. The preparation method has small environmental pollution, good N-alkylation selectivity and high conversion rate, the raw material is easy to be recovered, the catalyst can be applied, the production cost is low, and the production process can be simplified.
Owner:WUXUE LONGXIANG MEDICINE

Bottom plate automatic net spreading and connecting device and method for slicing of thick seams

The invention discloses a bottom plate automatic net spreading and connecting device and method for slicing of thick seams. The bottom plate automatic net spreading and connecting device comprises a plurality of hydraulic supports which are in parallel with an excavation working face, and the tail of each hydraulic support is provided with a rear seat. A net coil spreading mechanism, a slipping mechanism and a net connecting mechanism are arranged on each rear seat. The net coil spreading mechanisms are used for mounting or spreading well wound net coils. The slipping mechanisms are arranged below the net coil spreading mechanisms and used for driving the net coil spreading mechanisms to slip in the mode of being parallel with the excavation working face to spread the net coils. The net connecting mechanisms are fixed to the slipping mechanisms and used for sewing and connecting the overlapped parts of the to-be-spread net coils and the spread net coils. The automatic net connecting function is achieved, the number of equipment is decreased, the equipment cost is reduced, and meanwhile the bottom plate automatic net spreading and connecting device and method further have the advantages that the net spreading efficiency is high, the workload of downhole workers is little, and operability and practicability are greatly achieved.
Owner:SHANDONG UNIV OF SCI & TECH

Preparation method for copper-doped multilayer graphene

The invention relates to a preparation method for copper-doped multilayer graphene, and relates to graphene. According to the preparation method for copper-doped multilayer graphene, through doping ofheterogeneous copper atoms, the structure and the energy stage of the multilayer graphene are effectively regulated, and the photoelectric property of the multilayer graphene is improved. According to the preparation method, a graphite target material and a copper target material are used as raw materials, direct current radio frequency joint sputtering of magnetron sputtering is adopted, a copper element is led into a carbon substrate, and the structure and the energy stage of the multilayer graphene are effectively improved. According to the preparation method, low-cost easily-obtained andnontoxic graphite target material and copper target material are used as the raw materials, the copper element is led into the carbon substrate, the structure and the energy stage of the multilayer graphene are effectively improved, and the electron transition mode is more diverse; and the photoelectric property of the multilayer graphene is effectively changed, and the multilayer graphene can beused for detectors, light emitting diodes, solar batteries, supercapacitors, lithium ion batteries, fluorescent materials and other fields.
Owner:KUNMING INST OF PHYSICS

Method for judging salt damage grade of bamboo plants

The invention relates to a method for judging the salt damage grade of bamboo plants, and relates to bamboo plants. The method for judging the salt damage grade of the bamboo plants comprises the steps that materials are prepared as the following requirements, specifically, in a nursery, bamboo seedlings are buried and potted, plastic pots are filled with nutritious soil, the bamboo seedlings arepoured with water, when all bamboo are survived and then moved into a shed, and the pot bamboo is selected as the experimental materials; the requirements of soil salinization gradient are as follows,specifically, six salinity levels are arranged, wherein the three salinity levels repeat, and the six salinity levels comprises tap water, 0.1% of a NaCl aqueous solution, 0.3% of a NaCl aqueous solution, 0.5% of a NaCl aqueous solution, 0.7% of a NaCl aqueous solution and 1.0% of a NaCl aqueous solution; the time of soil salinization treatment is as follows, specifically, during the cultivationprocess of the potted bamboo, the NaCl aqueous solution is poured in the bamboo seedlings for every 3-5 days to maintain the soil salt concentration of each treatment, and salt treatment is stopped when most of leaf tips and leaf edges turned yellow of the tested bamboo to leaves; and the salt tolerance grade is determined by sampling and analysis. The method for judging the salt damage grade of the bamboo plants can accurately determine the salt damage grade of the bamboo plants.
Owner:厦门市园林植物园

Preparation method of copper-doped multilayer graphene

The invention relates to a preparation method for copper-doped multilayer graphene, and relates to graphene. According to the preparation method for copper-doped multilayer graphene, through doping ofheterogeneous copper atoms, the structure and the energy stage of the multilayer graphene are effectively regulated, and the photoelectric property of the multilayer graphene is improved. According to the preparation method, a graphite target material and a copper target material are used as raw materials, direct current radio frequency joint sputtering of magnetron sputtering is adopted, a copper element is led into a carbon substrate, and the structure and the energy stage of the multilayer graphene are effectively improved. According to the preparation method, low-cost easily-obtained andnontoxic graphite target material and copper target material are used as the raw materials, the copper element is led into the carbon substrate, the structure and the energy stage of the multilayer graphene are effectively improved, and the electron transition mode is more diverse; and the photoelectric property of the multilayer graphene is effectively changed, and the multilayer graphene can beused for detectors, light emitting diodes, solar batteries, supercapacitors, lithium ion batteries, fluorescent materials and other fields.
Owner:KUNMING INST OF PHYSICS

Interactive answering operation and answering expression method and system

The invention provides an interactive answering operation and answering expression method and system, and relates to the field of touch control. The interactive question answering operation and question answering expression method comprises the following steps: selecting answer options, dragging all around to exceed a preset pixel value, and loosening fingers to complete question answering; in the pressing and dragging process, the answers move along with the indexes, and the UI display state changes; and judging whether the moving distance exceeds a preset pixel value or not, and performing state restoration or ending the process according to a judgment result. The progress bar comprises the current answer progress and graphic display of correct and wrong answers; the question which is being answered at present is marked by a red arrow on the progress bar, and the arrow moves forwards to the next question every time one question is answered; and after the answer is completed, the progress bar above the interface gives correct and error feedback. The device can effectively reduce mistaken touch, and can visually enable people to clearly know the current answering progress. The invention further provides an interactive answering operation and answering expression system.
Owner:北京课游工场数字科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products