Abstract: In an example embodiment, a deep neural network is used to predict a classification for ingested job listings for a piece of information that is missing from the ingested job listings. More particularly, the deep neural network may comprise a multi-layer perceptron with a plurality of rectifier linear units (ReLUs). For a given category of information, a plurality of different information entities may be evaluated by the multi-layer perceptron against features of a job listing, producing a probability prediction of reach of those information entities for the job listing. The information entity with the highest predicted probability is identified by the multi-layer perceptron as the predicted information entity for that given category of information for the job listing.

Abstract: A regeneration method for a benzene alkylation solid acid catalyst, comprising: purging the solid acid catalyst in a reactor with a gas; continuously injecting n-hexane at a feed port of the reactor and heating the n-hexane to wash the solid acid catalyst, and discharging the n-hexane entraining benzene alkylation reaction residues from a discharge port of the reactor; and stopping injecting n-hexane, cleaning off a liquid in the reactor by purging with the gas, and cooling the reactor. In the regeneration method of the present disclosure, the regeneration liquid used is n-hexane, which can increase the solubility of the residues in channels and enhance the regeneration effect. Meanwhile, permanent damage to the channel structure of the catalyst caused by carbon burning regeneration can be avoided, thereby prolonging the lifetime of the catalyst.

Abstract: The present disclosure provides a method of separating ?-olefin by a simulated moving bed. The method comprises using a coal-based Fischer-Tropsch synthetic oil as a raw material to obtain a target olefin having a carbon number N within a range from 9 to 18, wherein the raw material is subjected to treatment steps including pretreatment, fraction cutting, alkane-alkene separation, and isomer separation, thereby obtaining a high purity ?-olefin product. As compared to conventional rectification and extraction processes, the product obtained by the method of the present disclosure has advantages of higher purity, higher yield, lower energy consumption, and significantly reduced production cost.

Abstract: Disclosed are a pretreatment method and system for a fraction oil for the production of alkylbenzene, the method comprising: adding a fraction oil, a weak base solution and an inorganic salt solution into a reactor, and leaving same to stand and layering same after the reaction is complete; adding water and an inorganic salt solution into an oil phase for washing with water; extracting same with a polar solvent having a high boiling point, and then adsorbing same with an adsorbent to separate oxygen-containing compounds in the neutral fraction oil; sending the extraction agent containing the oxygen-containing compounds to an extraction agent recovery unit; and then sending the neutral fraction oil to an alkylation reactor for a reaction.

Abstract: An efficient simulated moving bed device and an efficient simulated moving bed process are provided. The efficient simulated moving bed device comprises an adsorption bed, a raw material feeding system, a desorbent feeding system, a circulating system, an extract system, a raffinate system, a program-controlled valve group, and an automatic control system.

Abstract: The present disclosure provides a method of separating ?-olefin by a simulated moving bed. The method comprises using a coal-based Fischer-Tropsch synthetic oil as a raw material to obtain a target olefin having a carbon number N within a range from 9 to 18, wherein the raw material is subjected to treatment steps including pretreatment, fraction cutting, alkane-alkene separation, and isomer separation, thereby obtaining a high purity ?-olefin product. As compared to conventional rectification and extraction processes, the product obtained by the method of the present disclosure has advantages of higher purity, higher yield, lower energy consumption, and significantly reduced production cost.

Abstract: Techniques are provided for automatically generating a real-time notification associated with a job posting. In one technique, in response to receiving a job posting, a plurality of saved searches that includes a first set of criteria and a second set of criteria is identified. For each saved search, a job posting is added to a first subset of saved searches if the job posting satisfies the first set of criteria. For each saved search of the first subset, a saved search is added to a second subset of saved searches if the job posting satisfies the second set of criteria. For each saved search of the second subset, a notification associated with the job posting is automatically sent to a computing device of a user associated with each saved search of the second subset.

Abstract: The present invention provides a crystal form of urate transporter 1 inhibitor and a preparation method and use thereof. The crystal form is characterized by a stable state of appearance and a capability of further improving the purity and storage stability of the compound, etc., and suitable as a pharmaceutical raw material.

Abstract: Provided is a method for preparing a URAT1 inhibitor, 2-((5-bromo-4-((4-bromonaphthalen-1-yl)methyl)-4H-1,2,4-triazol-3-yl)thio) acetic acid represented by the following formula ZXS-BR, the reaction equation of which being shown as follows. Compared with the prior art, the preparation method provided by the present application is of low cost, ease of handling, ease of quality control, and applicable to industrialization.

Abstract: A regeneration method for a benzene alkylation solid acid catalyst, comprising: purging the solid acid catalyst in a reactor with a gas; continuously injecting n-hexane at a feed port of the reactor and heating the n-hexane to wash the solid acid catalyst, and discharging the n-hexane entraining benzene alkylation reaction residues from a discharge port of the reactor; and stopping injecting n-hexane, cleaning off a liquid in the reactor by purging with the gas, and cooling the reactor. In the regeneration method of the present disclosure, the regeneration liquid used is n-hexane, which can increase the solubility of the residues in channels and enhance the regeneration effect. Meanwhile, permanent damage to the channel structure of the catalyst caused by carbon burning regeneration can be avoided, thereby prolonging the lifetime of the catalyst.

Abstract: Disclosed are a pretreatment method and system for a fraction oil for the production of alkylbenzene, the method comprising: adding a fraction oil, a weak base solution and an inorganic salt solution into a reactor, and leaving same to stand and layering same after the reaction is complete; adding water and an inorganic salt solution into an oil phase for washing with water; extracting same with a polar solvent having a high boiling point, and then adsorbing same with an adsorbent to separate oxygen-containing compounds in the neutral fraction oil; sending the extraction agent containing the oxygen-containing compounds to an extraction agent recovery unit; and then sending the neutral fraction oil to an alkylation reactor for a reaction.

Abstract: The present invention provides a crystal form of urate transporter 1 inhibitor and a preparation method and use thereof. The crystal form is characterized by a stable state of appearance and a capability of further improving the purity and storage stability of the compound, etc., and suitable as a pharmaceutical raw material.

Abstract: The present invention relates to the pharmaceutical field for the treatment of hyperuricemia and gout. In particular, the present invention relates to a carboxylic acid urate transporter 1 (URAT1) inhibitor of a general formula (I) containing a diarylmethane structure and a preparation method thereof, and a pharmaceutical composition containing the same and a use thereof in the preparation of medicaments for treating hyperuricemia and gout, wherein R1 is selected from H, C1-C10 alkyl, C3-C10 cycloalkyl, F, Cl, Br, I, CN, NO2, SR4 or OR4; R2 is selected from H, F, Cl, Br or I; R3 is selected from H or C1-C4 alkyl; X is selected from S or CH2; wherein R4 is selected from C1-C10 alkyl.

Abstract: Provided is a method for preparing a URAT1 inhibitor, 2-((5-bromo-4-((4-bromonaphthalen-1-yl)methyl)-4H-1,2,4-triazol-3-yl)thio) acetic acid represented by the following formula ZXS-BR, the reaction equation of which being shown as follows. Compared with the prior art, the preparation method provided by the present application is of low cost, ease of handling, ease of quality control, and applicable to industrialization.

Abstract: The present invention relates to the pharmaceutical field for the treatment of hyperuricemia and gout. In particular, the present invention relates to a carboxylic acid urate transporter 1 (URAT1) inhibitor of a general formula (I) containing a diarylmethane structure and a preparation method thereof, and a pharmaceutical composition containing the same and a use thereof in the preparation of medicaments for treating hyperuricemia and gout, wherein R1 is selected from H, C1-C10 alkyl, C3-C10 cycloalkyl, F, Cl, Br, I, CN, NO2, SR4 or OR4; R2 is selected from H, F, Cl, Br or I; R3 is selected from H or C1-C4 alkyl; X is selected from S or CH2; wherein R4 is selected from C1-C10 alkyl.

Abstract: In accordance with an embodiment of the present invention, an information sharing mechanism comprising a memory structure may be provided in a database system. In an embodiment, mined information transferred by a capture process to an associated apply process can be written into the memory structure without taking any latch. Similarly, the mined information can be read by the apply process from the memory structure without taking any latch. The capture and apply processes may work cooperatively to establish a safe point in log mining under various circumstances such as in an initial startup state, in a steady state, in a process restart scenario in the middle of information sharing. In some embodiments, the information sharing mechanism supports both checkpoint-free and checkpoint modes of log mining by the capture process. In addition, both the capture process and the apply process may employ an eager apply approach to increase processing capacity.

Abstract: A computer is programmed to parse a network that interconnects databases in a distributed database system, into a number of paths, wherein each path starts in a source database that is a source of changes and ends in a destination database that uses the changes to replicate the source database. The computer identifies databases that occur within each path in the network, and queries the identified databases to obtain statistics for each path. Statistics along each path are analyzed automatically, to identify a component in each path as a candidate for further investigation. The identified component may be marked as a bottleneck e.g. if there are no other paths connected to it. Alternatively the identified component may be a source of changes for another path that has a bottleneck or that has another candidate for further investigation. The identified bottleneck is displayed to the user with recommendations for improvement.

Abstract: A computer is programmed to parse a network that interconnects databases in a distributed database system, into a number of paths, wherein each path starts in a source database that is a source of changes and ends in a destination database that uses the changes to replicate the source database. The computer identifies databases that occur within each path in the network, and queries the identified databases to obtain statistics for each path. Statistics along each path are analyzed automatically, to identify a component in each path as a candidate for further investigation. The identified component may be marked as a bottleneck e.g. if there are no other paths connected to it. Alternatively the identified component may be a source of changes for another path that has a bottleneck or that has another candidate for further investigation. The identified bottleneck is displayed to the user with recommendations for improvement.

Abstract: A computer is programmed to parse a network that interconnects databases in a distributed database system, into a number of paths, wherein each path starts in a source database that is a source of changes and ends in a destination database that uses the changes to replicate the source database. The computer identifies databases that occur within each path in the network, and queries the identified databases to obtain statistics for each path. Statistics along each path are analyzed automatically, to identify a component in each path as a candidate for further investigation. The identified component may be marked as a bottleneck e.g. if there are no other paths connected to it. Alternatively the identified component may be a source of changes for another path that has a bottleneck or that has another candidate for further investigation. The identified bottleneck is displayed to the user with recommendations for improvement.