89results about How to "Reasonable protection" patented technology

Prevention of unpermitted use of enabling bits is achieved by sealing the enabling bits to an environment in such a way that the bits can only be unsealed by or from the environment, and by using an isolation mechanism to isolate the environment from other environments on the machine on which the environment operates. The environment is trusted not to use the enabling bits except in accordance with a set of rules governing the bits. The enabling bits may be a decryption key for DRM-protected content, and the rules may be a license governing the use of that content. Trust that the enabling bits will not be misused is established by trusting the environment not to use the enabling bits contrary to the rules, trusting the isolation mechanism to isolate the environment, and trusting the unsealing mechanism only to unseal the bits for the environment.

The invention discloses an upper air falling object protection method and device. The method includes the steps that whether a falling object exists above a movable carrier or not is detected through a detection device; if it is detected that the falling object exists above the movable carrier, the danger value of the falling object is determined; and the danger value is compared with a preset danger threshold value, and a protection measure is taken according to a comparison result. By the adoption of the scheme, the movable carrier can flexibly and reasonably conduct protection when encountering the upper air falling object, so that the falling object is prevented from damaging the device.

The invention relates to a high-speed train gearbox no-load running-in test bench, which is composed of a driving device, axle end transition bearing positioning clamping devices, a large-span mobile wheel set axle positioning supporting device, a gearbox input end pressing vertical column device and a noise testing device, wherein the driving device is arranged at the left end of a test bench base (1); a fixing-end and a mobile-end transition bearing positioning clamping devices are arranged at the left side and the right side of the test bench base (1) respectively; the large-span mobile wheel set axle positioning supporting device is composed of two sets of large-span mobile wheel set axle positioning supporting devices with the same structure; the gearbox input end pressing vertical column device is arranged on the test bench base (1); and the noise testing device comprises noise testing sound level meters and supporting tube assemblies arranged at the input end and the output end of the gearbox respectively. A series of technical problems that the existing gearbox no-load running-in test bench is complicated to assemble and disassemble, an axle journal is damaged, a high rotation speed can not be met and the like can be solved.

The invention relates to a reclamation method for a sunk paddy field caused by mining in mountainous regions and belongs to the technical field of improvement and utilization of environment, ecology and damaged fields. The method includes: performing topsoil stripping to fissured positions where fissures are created by mining sinking and lead to water leakage of the paddy field; covering water holding materials on fissured areas after topsoil stripping; compacting the covered water holding materials, pouring slurry and standing; performing topsoil backfilling and grinding to the fissured areas after slurry pouring and standing, and flattening to enable the fissured areas to be a whole with pieces of the paddy field around the fissured areas; and irrigating, nourishing and improving the paddy field after backfilling and grinding. By the method, the cultivation land where the fissures are created by mining sinking and lead to water leakage of the paddy field can restore the paddy field utilization mode and reach production level of a normal paddy field as soon as possible, a stable self-maintaining farmland ecological system can be formed, a paddy field protecting system can be formed, soil microbial content can be increased, physicochemical property of soil can be improved, and benign farmland ecological system circulation can be formed.

The invention relates to a gearbox no-load running-in test bed with a self-centering positioning and clamping device. The gearbox no-load running-in test bed is mainly composed of a driving device, a fixed end elastic clamping spindle positioning and clamping device, a movable end self-centering positioning and clamping device, a gearbox input end compression upright post device, a noise testing device and a test bed base, wherein the driving device is connected and mounted to the left end of the test bed base (1) via bolts, the fixed end elastic clamping spindle positioning and clamping device (4) is mounted on the left side of the test bed base (1), the movable end self-centering positioning and clamping device (9) is mounted at the right end of the test bed base (1), and the gearbox input end compression upright post device (8) is mounted on the test bed base (1) via a T-shaped bolt. The gearbox no-load running-in test bed solves a series of technical problems that the existing gearbox no-load running-in test bed is complex in dismantling and mounting, damages axle spindles and cannot meet high revolution speed and the like.