36results about How to "Reduce the number of exchanges" patented technology

The invention relates to a lithium-containing modified low silicon-aluminum X type molecular sieve adsorbent and a preparation method thereof. The molecular sieve adsorbent comprises the following components in parts by weight: 80-90 parts of Li-LSX molecular sieve raw powder, 10-20 parts of binder and 1-5 parts of forming adjuvant; the method comprises following steps: modifying the merchant low-silicon molecular sieve raw powder by the processes of once exchange and once roasting, twice exchange and twice roasting and third lithium exchange to obtain the Li-LSX molecular sieve raw powder, and then mixing with the binder and the forming adjuvant for shaping to obtain the product. Compared with the prior art, the exchange roasting modification process provided by the invention can improve the stability of LSX molecular sieve framework, reduce the damage on the LSX molecular sieve framework caused by the subsequent process, obtain the LSX molecular sieve the Li+ exchange degree of which is more than 95%, and lower production cost, thus making large-scale industrial production possible.

The embodiment of the invention discloses a data sharing method and device, a server and a storage medium. The method is applied to the technical field of data processing. The method comprises the steps of: detecting an access request for target shared data, determining a target access permission of a request user for the target shared data, and under the condition that the access request is usedfor writing the target shared data and the target access permission is a data read-write permission, writing the target shared data into a storage area corresponding to database link information, or,under the condition that the access request is used for reading the target shared data and the target access permission is a data read-write permission or a data read permission, acquiring the targetshared data based on the database link information and returning the target shared data. With the above method adopted, a data sharing process can be managed in a unified mode through a data sharing server, the data sharing process is effectively simplified, an exchange link is shortened, and data sharing delay is reduced.

The invention discloses a novel balloon microcatheter for treating cerebrovascular stenosis. The novel balloon microcatheter is combined by a balloon catheter and a microcatheter. The balloon catheter is sleeved outside the microcatheter. An external cavity is formed by the inner wall of the balloon catheter and the outer wall of the microcatheter. A balloon is arranged at the front end of the outer cavity. The microcatheter is provided with balloon developing rings at two ends corresponding to the balloon. A tip developing ring is disposed at the tip of the microcatheter. The inner cavity of the microcatheter is used as a conveying system for a support. During operation, a doctor uses the balloon on the balloon catheter to pre-expand vascular stenosis and then withdraws the balloon, a balloon expansion support or a self-expandable support disconnects from the inner cavity of the microcatheter along with withdrawal of the balloon (the balloon expansion support needs to pushed forward slightly), and the balloon expansion support or the self-expandable support expands and fixes at the vascular stenosis to expand the vessel. By the novel balloon microcatheter, exchanging times of medical instruments inside a patient's body during operation can be reduced, and possibility of complications of the patient is lowered.

The invention discloses supergravity air cooling equipment capable of removing natural dormancy of deciduous fruit trees. The supergravity air cooling equipment comprises a heat exchange bucket with an opening in the upper end, an air inlet device, a cooling air outlet device and a cooling liquid inlet device are arranged on the heat exchange bucket, and a supergravity cooling liquid atomization device capable of dispersing and atomizing cooling liquid conveyed by the cooling liquid inlet device is arranged in the heat exchange bucket. According to the scheme, the heat and mass transfer mode with air and water in direct contact is adopted, the heat and mass transfer link is reduced, the water and air temperature difference is about 1 DEG C after air and water liquid are exchanged, and supports are provided for low-temperature cooling water to manufacture low-temperature air. The relative humidity of cooling air obtained after heat and mass transfer is close to the saturation relative humidity, and proper humidity can be provided for the fruit trees after the cooling air and high-temperature air are mixed.