92 results about "Taking test" patented technology

A first party (e.g. educational testing service) provides through the internet to a control server information (e.g. test server) relating to a second party (e.g. a student taking tests prepared by the service). The server provides and may store a verification (e.g. an encrypted digital signature) of, but does not store, the second party information. The server transmits the information and the verification through the internet to the second party. The second party transmits to the server through the internet the information and the verification with a request to transmit the information to a designated third party (e.g. a college or university to which the student has applied for admission). The server authenticates the information through verification comparisons (or through comparison of the information with the reconstruction and decryption of the verification) and transmits the information, authenticated by the server and the testing service, to the third party.

The present invention provides authentication of computer generated game or test results (“outcomes”), and a system by which persons who play games or take tests on a game or testing computer, respectively, may submit the outcomes of the games or tests to a central authority having at least one central computer, and have the central computer “certify” those outcomes as being accurately reported and fairly achieved. This certification of the computer generated result constitutes a “remote-auditing” of the activity taking place on the game computer. In one application, the system enables computer generated game tournaments in which players play the games on game computers and compete against each other by submitting the outcomes for those tournament games to the central computer, which certifies the outcomes and rates and ranks the players. In another application, the system provides for players of computer games to obtain a certified ranking and rating without participation in a tournament. In other embodiments, the system provides for self-authentication and certification of outcomes for games played on the game computer itself, or for mutual-authentication and certification of such outcomes on any other game computer in the system.

The invention belongs to the technical field of crystal structure measurement through measuring back scattering, and relates to a method for measuring the orientation differences of orientation silicon steel crystal particles by utilizing an EBSD (Electron Back-Scattered Diffraction) technique. The method provided by the invention comprises the following steps of: measuring the euler angle of each crystal particle in a taken test sample by adopting the principle of detecting the crystal particle orientation by adopting the EBSD, and calculating the orientation differences of adjacent crystal particles and the orientation differences between the crystal particles and a standard goss texture, thereby obtaining the corresponding relationships between the magnetic induction intensity and the orientation differences. The method has the advantages of, rapid measurement speed, large measurement region, intuitive and understandable expression, typical obtained result and the like, and is simple to operate.

The invention discloses a storage device for mesenchymal stem cell exosomes. A low-temperature box with the internal temperature kept at -20 DEG C is included, and is internally provided with a rotatable rotating base; eight storing cavities are formed in the rotating base in the circumferential direction in an array manner; test tube frames capable of sliding are arranged in the storing cavities;test tubes containing the exosomes can be placed in the test tube frames; and stabilizing devices for elastically fixing the test tubes are arranged in the test tube frames. The storage device for the mesenchymal stem cell exosomes is simple in structure, convenient to operate, and convenient to maintain; and the device can be used for effectively keeping the temperature of the test tubes, to-be-taken test tubes can be independently taken out in the taking and using process, temperature changing of other test tubes is avoided, the storing effect of the test tubes is guaranteed, and thus the device has high using and popularizing value.

The invention belongs to the technical field of mechanical engineering, and discloses a test system and a test method used for a servo hydraulic cylinder. In the invention, a hydraulic control device is respectively connected with the servo hydraulic cylinder to be tested, a pump source and an accumulator to build a complete hydraulic control loop; a closed-loop controller is respectively connected with the servo hydraulic cylinder to be tested, the hydraulic control device and a computer; and then the servo hydraulic cylinder to be tested is connected with a loading device to constitute a complete mechanical-hydraulic-electrical closed-loop control system used for the servo hydraulic cylinder testing. The invention has convenient operation and wide application range, and can comprehensively and systematically judge dynamic and static properties of the servo hydraulic cylinder to be tested by taking test indexes such as cleanliness, frictional characteristic, step response time, hysteresis loop, and the like aiming at different servo hydraulic cylinders in an equipment factory and engineering production field.

The invention discloses an intelligent examination monitoring system and method. The intelligent examination monitoring system comprises a database, a database server, an examination room management server, an examinee client and a camera. The signal output end of the camera is connected with the examinee client. The examinee client is connected with the examination room management server. The examination room management server is connected with the database server through the internet. The database server is connected with the database. Compared with the prior art, identity identification accuracy can be improved, and the situation that examinees attend the examinations for other examinees is eliminated; meanwhile, by means of the system, the examinees can directly attend the examinations without document check, the workload of invigilators is greatly lowered, and the trouble, caused by document missing and counterfeit, to the examinees is eliminated. The intelligent examination monitoring system is matched with manual invigilation, and fairness and justness of the examinations are guaranteed to the maximum degree, and the rights and interests of all the examinees are guaranteed.

The invention discloses a large water conservancy and hydropower geotechnical engineering exploration soil sample storage box which comprises a base, a storage box body, a sliding cover, a heating base, a lifting clamping plate, a water tank and an atomizer. Sliding rails are fixedly connected to the inner walls on the left side and the right side of the storage box body through screws, sliding blocks are installed on the sliding rails in a sliding mode, a lifting clamping plate is fixedly connected between the sliding blocks on the left side and the right side through screws, the water tank is fixedly installed on the outer wall of the right side of the storage box body through a screw, a water pipe is in threaded connection with the water tank, and the other end of the water pipe is connected with the atomizer. A soil taking test tube is heated by heating the base, and the temperature of the soil taking test tube is ensured. When the humidity inside the storage box body does not reach standards, water vapor is sprayed into the storage box body through the atomizer, the humidity inside the storage box body is ensured, the phenomenon that water loss is serious due to the fact thatsoil sample wax sealing is not timely in the transportation process is effectively avoided, the soil taking test tube can be placed in or taken out by spirally twisting a spiral adjusting button, andthe operation is simple and effective.

The invention relates to a method and a device for checking print products of the same kind, particularly printed paper sheets of the same kind, which are transported by a transport unit. For this purpose, during a teach-in phase, test images are taken at several points of the print product using a digital camera. The test images taken, or parts thereof, are evaluated with respect to the characteristic information thereof, and the test image having the most characteristic information is selected as the reference image. In order to check print products of the same kind, the subsequent print products of the same kind are checked by taking at least one image at a position that corresponds to the reference image and by comparing it to the image data of the reference image. This check is carried out with a device, comprising a digital camera for taking test images of the print product, an illumination device for illuminating the print product, an input for feeding a position signal, and a control and evaluating unit for controlling the digital camera and the illumination device and for evaluating image data of the digital camera. The invention further relates to a computer program and a computer program product.

A system and method for computer-aided test and homework management in client-server architecture comprises server software for a teacher to create tests and homework, and client software for students to take tests and complete homework assignments. The teacher uses the server software to correct the set-answers and multiple choices automatically. For creative responses in a free-style text format, matching pre-defined key words in the response is used for auto-grading, but can be overridden manually by the teacher. Keywords in the response are highlighted to help the teacher in the grading process. The client software provides a secure way to take a test by displaying a black background behind the window to block possible cheating utensils. The client software is also operable to administer testing and homework offline, as it downloads and saves test questions and homework assignments in the client data repository, which allows students to review all the tests and homework assignments previously taken.

The invention relates to an auxiliary picture-taking test frame for automobile lamp road test, comprising a first vertical bracket, a second vertical bracket, a horizontal beam and a suspension platform. Both the first vertical bracket and the second vertical bracket can go up and down. The horizontal beam, the first vertical bracket and the second vertical bracket form a gantry-type body structure. The suspension platform is movably installed on the horizontal beam, and the suspension platform is used for placing an observation record instrument for recording the automobile lamp test performance. By adjusting the height of the first vertical bracket and the second vertical bracket and horizontally adjusting the position of the suspension platform, the suspension platform is kept in the position range of the line of sight of the driver. The test frame can provide effective, comparable and quantifiable analysis data for the improvement of the light effect and subsequent development, reduce the research and development costs and shorten the research and development process. The problem that there is no automobile lamp auxiliary bracket for existing automobile lamp road test and the existing automobile lamp road test is of high cost and long cycle is solved.

The invention discloses a device for continuously obtaining drill hole in-situ water samples and a water taking method. The device comprises an air pressure control system, a pipeline transportation system, a lifting control system, a water inlet control system and a plug isolation system, wherein the air pressure control system is mainly used for providing a pressure difference for the water intake control system. The pipeline transportation system is mainly used for transmitting an air pressure and conveying the water samples. The lifting control system is mainly used for dropping and lifting a water taking device. The plug isolation system is mainly used for isolating a water taking test section. The water inlet control system is mainly used for controlling opening and closing of a water inlet valve according to the pressure difference. The device for continuously obtaining the drill hole in-situ water samples, provided by the invention, can continuously obtain the samples at different depths below the drill hole underground water level under the condition of one dropping and one lifting of the water taking device, and has the advantages of being low in manufacturing cost, simple in structure, easy to operate, and the like.