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1100results about How to "Extended processing time" patented technology

Non-thermal sterilization method for apple cloudy juice

The invention discloses a liquid food novel non-thermal sterilization method, in particular a non-thermal sterilization method of cloudy apple juice which belongs to the food processing technology field. The technical scheme includes adopting the aseptic operation to send the cloudy apple juice into a reaction vessel and adopting pulse type carbon dioxide with high density for the sterilization. The concrete operation step is: firstly, pumping carbon dioxide with high density into the reaction vessel; secondly, treating for a certain period at the set temperature and pressure condition; thirdly, releasing the carbon dioxide after the treatment to lower the pressure in the reaction vessel to the normal pressure; fourthly, operating the steps from the first to the third repeatedly for more than two times for the pulse type carbon dioxide with high density treatment. The killing effect of Escherichia coli in the cloudy apple juice which is processed in the invention can achieve the result of lowering at least five logarithms to satisfy the commercial aseptic requirement. Compared with the present non-thermal sterilization method, the invention has more obvious sterilization effect and can shorten the treatment time and save energy. The invention has the advantages of low processing temperature, energy saving and environmental protection and can maintain the good flavor of the cloudy apple juice.
Owner:CHINA AGRI UNIV

Uncertain space-time trajectory data range query method under road network environment

The invention discloses an uncertain space-time trajectory data range query method under road network environment. The process includes that firstly, a road network is divided into divided areas with the number of K; a hash table is established according to sides and divided corresponding relations; boundary points of the divided areas are calculated, and a two-dimensional space R tree index is established; the shortest path distance among the boundary points of each dividing is calculated; a one-dimensional R tree time quantum index is established for each dividing, and a B+ tree for storing trajectory data for each one-dimensional R tree is established; then, the earliest arrival time and the latest leaving time of a certain trajectory and an uncertain trajectory are calculated, and a unit segment assemble and divided beginning and ending time are inserted into time interval components; and finally, according to the dividing of a query point, distance information of a divided boundary point and the query point is calculated, and therefore a query result is obtained. According to the uncertain space-time trajectory data range query method under the road network environment, a small amount of input/output (I/O) operations and online calculation are only needed to be performed for a part of dividing, the query results can be obtained, and the query results are high in accuracy degree and fast in response speed.
Owner:ZHEJIANG UNIV
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