5results about How to "Solve unmanageable problems" patented technology

The application discloses a method for improving the synthesis efficiency and quality of alpha-hydroxy acid borneol and borneol. In view of the problems existing in the traditional borneol synthesis process, alpha-hydroxy acid is used instead of anhydrous oxalic acid as an esterification agent, one or more of boric acid, phenylboric acid, boron oxide and VB2 is used as a catalyst, and an acid anhydride is added, and the intermediate product alpha-hydroxy acid borneol is obtained by stirring reaction at room temperature. After the reaction is completed, the catalyst is filtered out by standing and precipitating, and the reaction product is washed to neutral with water. The monoterpenes by-product in the product is separated by water vapor distillation to obtain crude alpha-hydroxy acid borneol. The crude borneol is separated and purified by column chromatography to obtain refined alpha-hydroxy acid borneol. Finally, the borneol ester is saponified, and the borneol with a purity of more than 98% is obtained by water vapor distillation. The application can complete the reaction by stirring at room temperature, and there is no danger of heating, material flushing and explosion, and the total borneol yield can reach more than 45%, and the normal borneol accounts for more than 80% of the total borneol.

The utility model relates to a kind of communication module is beaten detection tooling. Including bottom plate, the seat for placing communication module for placing, the horizontal type clamp for compacting communication module and the beating assembly for beating the two sides of communication module and the clamping seat installed in the top of bottom plate;Seat is placed in the top of bottom plate, and seat is close to clamping seat to place;Horizontal type clamp is installed in the top of clamping seat, and horizontal type clamp compacting end is located just above seat;Two groups of beating assembly of opposite placement are installed in the bottom of bottom plate;And the acting end of two groups of beating assembly is penetrated in bottom plate. It solves the technical problem that communication module detection device in the prior art can only realize single direction beating, cannot comprehensively simulate the multidirectional impact that module can be subjected to in actual use, some devices also lack the stable fixing structure of communication module, prone to module displacement, shaking and other problems in beating process, not only affect detection accuracy, but also possibly cause additional damage to module due to unstable fixation.

The application relates to a simulation experiment system of canyon river and alluvial fan interaction, which comprises a groundwater reservoir, a water inlet pool, a water and sand mixing narrow slot, a sediment deposition pool and a water outlet pool. The simulation experiment system can meet the research needs of river and alluvial fan interaction, can inversely analyze the process of alluvial fan development forming an alluvial plain, and has the advantages of simple operation, precise control, convenient measurement, low cost and the like.

The present application relates to the field of new energy technology, in particular to a method for controlling ammonia borane hydrolysis hydrogen release in solid phase system, the solid phase system is AB@metal M / aerogel porous material; the amount of water added to the solid phase system is controlled to control the amount of AB hydrolysis hydrogen release. The AB@metal M / aerogel porous material is: AB is encapsulated in the aerogel porous material loaded with metal catalyst M. The catalyst is loaded on the aerogel porous material, and AB can be encapsulated in these aerogel porous materials due to the certain solid morphology of the aerogel porous material. The amount of water added to the AB@metal M / aerogel porous material is controlled to control the AB hydrolysis hydrogen release process. The method for controlling hydrogen release in the solid phase system can solve the problem that the liquid phase hydrogen release process is difficult to control, and can be applied to vehicle-mounted energy devices, and has the characteristics of convenient vehicle-mounted, simple operation and easy process control.

The embodiment of the disclosure provides a UE policy management method and related equipment, and belongs to the technical field of communication. The method can be executed by a user equipment (UE), and includes: receiving a management UE policy command message sent by a policy control function (PCF) network element through an access and mobility management function (AMF) network element, wherein the management UE policy command message comprises a UE policy, the UE policy comprises a target user equipment policy section identifier (UPSI), and a policy section corresponding to the target UPSI is empty; if the target UPSI does not exist in the UE policy stored by the UE, discarding or rejecting an association indication message of the target UPSI in the UE policy.