Abstract: A liquid accumulator and a refrigerating system having same are provided. The liquid accumulator includes a tank body component, a valve seat, a baffle, and a one-way valve. The tank body component has a tank cavity, and the valve seat and the baffle are arranged in the tank cavity and abut against a side wall of the tank cavity, respectively. The valve seat is provided with a valve port, and the baffle is provided with a communicating port. The one-way valve includes a valve plate, a valve core, and a blocking portion connected to the valve core. The valve plate is arranged at an end of the one-way valve that is proximal to the valve port. The valve plate can block the valve port and abut against the valve core, and an end of the valve core away from the valve plate passes through the communicating port.

Abstract: The present invention discloses a data query method, device and equipment and a storage medium. A data query method comprises the following steps: receiving an MDX query statement; acquiring related information of measurement and dimension in the MDX query statement; and performing query according to the related information of measurement and dimension to obtain a query result. According to the present invention, an MDX expression is computed by extracting the related information of measurement and dimension and utilizing a distributed computing framework, so that the data analysis efficiency is greatly improved.

Abstract: The query method and device suitable for an On-Line Analytical Processing (OLAP) query engine includes a client agent module, a query pattern matching module, a query distributed execution module, and a pre-aggregation module. The query pattern matching module is configured to obtain an MDX query request received by an OLAP query engine and process the MDX query request to generate at least one set of aggregation query sets. The one set of aggregation query sets includes a plurality of aggregation query requests. The query distributed execution module is configured to perform concurrent processing on the plurality of aggregation query requests. The aggregation query requests are arranged corresponding to the aggregation query results. An efficient OLAP query execution engine can deal with complex OLAP queries of various reporting system. Therefore, the execution efficiency of MDX query can be significantly enhanced, and analysis requests of the reporting systems are rapidly responded.

Abstract: Disclosed is a dilating incision device, which relates to a surgical tool and includes an outer shell, a dilating element and an incision assembly. The dilating element that is arranged at one end of the outer shell and communicated with the inside of the outer shell is used to drill into and expand a stenosis segment of the pancreatic or biliary duct or a puncture path between lumens of the digestive tract. A sliding groove is formed in a side wall of the outer shell, by which the inner cavity of the outer shell is communicated with the outside. The incision assembly includes an incision knife arranged in the outer shell and a sliding handle housing the outer shell. An intercommunicating hole is formed in one end of the dilating element, by which the inner cavity of the dilating element is communicated. with the outside.

Abstract: The present disclosure provides an under-screen fingerprint identification apparatus and an electronic device, where the under-screen fingerprint identification apparatus, applied to an electronic device with a liquid crystal display screen and a middle frame, includes a detection light source and a fingerprint identification module. The detection light source is located below an edge area of a protective cover plate of the liquid crystal display screen, the middle frame is provided with an accommodation space at a position opposite to the detection light source, and the detection light source is at least partially located in the accommodation space and is attached to the middle frame, so as to reduce an increased width of a chin area of the electronic device and contribute to realization of a full screen of the electronic device.

Abstract: Provided are revaprazan hydrochloride polymorphs and a preparation method thereof. The method comprises a step of dissolving revaprazan hydrochloride in ethanol or aqueous solutions of ethanol having different proportions to perform recrystallization.

Abstract: Provided is a preparation method for revaprazan hydrochloride, the method comprising: (1) the preparation of 4-hydroxyl-2-(4-fluoroaniline)-5,6-dimethylpyrimidine; (2) the preparation of 4-chloro-2-(4-fluoroaniline)-5,6-dimethylpyrimidine; (3) the preparation of revaprazan hydrochloride. The method has advantages such as simple operations, high product purity, good yield and suitability for industrial production.

Abstract: Provided are revaprazan hydrochloride polymorphs and a preparation method thereof. The method comprises a step of dissolving revaprazan hydrochloride in ethanol or aqueous solutions of ethanol having different proportions to perform recrystallization.

Abstract: Provided is a preparation method for revaprazan hydrochloride, the method comprising: (1) the preparation of 4-hydroxyl-2-(4-fluoroaniline)-5,6-dimethylpyrimidine; (2) the preparation of 4-chloro-2-(4-fluoroaniline)-5,6-dimethylpyrimidine; (3) the preparation of revaprazan hydrochloride. The method has advantages such as simple operations, high product purity, good yield and suitability for industrial production.

Abstract: Provided in the present invention are a new method for preparing the crystalline forms of Temozolomide and three types of crystalline form of Temozolomide by the method. Said method comprises the following steps: a Temozolomide is dissolved into dimethyl sulphoxide, a second organic solvent is added for recrystallization to prepare the crystalline forms of Temozolomide, wherein the second organic solvent is an alcohol, a ketone, a halohydrocarbon or an ester.

Abstract: Provided in the present invention are a new method for preparing the crystalline forms of Temozolomide and three types of crystalline form of Temozolomide by the method. Said method comprises the following steps: a Temozolomide is dissolved into dimethyl sulphoxide, a second organic solvent is added for recrystallization to prepare the crystalline forms of Temozolomide, wherein the second organic solvent is an alcohol, a ketone, a halohydrocarbon or an ester.