Abstract: The invention discloses a method of preparing a high chiral purity lactam intermediate D comprising a step of reducing a compound C to lactam intermediate D in a solvent by hydrogenation reduction using a heavy metal catalyst and a chiral inducer. Brivaracetam can be prepared in a single step using the lactam intermediate D. The synthesis route is short, reaction conditions are mild, post-treatment is simple, reaction yield is high, chiral selectivity is good, and production cost is low. The conversion rate of the compound C in the reaction is 81%, and the DE value of the compound D is more than 99.0%, which is suitable for industrial production.

Abstract: Aspects of the invention include detecting an error alert from a target computer system. In response to detecting the error alert, performance data is then retrieved from the target computer system. A gated recurrent unit (GRU) neural network is used to generate a prediction of a root cause of the error alert based on the performance data. The weights of a reset gate of the GRU neural network are adjusted based on received feedback of the prediction.

Abstract: The present disclosure provides a distributed storage method, involving the technical fields of computer and cloud computing, and including: reading and sending data to an external shuffle service in response to a request of a task from a driver thread; modifying a state of the task to a waiting-for-completion state after finishing sending the data to the external shuffle service; and sending the waiting-for-completion state to the driver thread, to cause the driver thread to release an executor thread corresponding to the task. The distributed storage method can reduce the waste of the resources of the executor thread and improves the efficiency of task operations. The present disclosure also provides an electronic apparatus, and a non-transitory computer-readable storage medium.

Abstract: A design support device supports a design project achieved by executing a plurality of tasks including subtasks. The design history data of the design performed by a designer is sequentially stored and associated with a task to sequentially generate task-design history relevant data. A subtask is defined with respect to the task-design history relevant data to sequentially generate design process data. Subtask relevant data indicating a relevance between subtasks with respect to the plurality of pieces of design process data is generated, and a subtask to be performed in a later design work is estimated with respect to an in-process design work from a difference between past design process data of a project performed in the past and in-process data in a project performed currently to obtain an estimate subtask. An optimal execution order is calculated to obtain estimate design process data and the estimate design process data is output.

Abstract: A mesh is manufactured in consideration of the differences between the specification of the mesh to be manufactured for each portion to be analyzed, the difficulty in defining the mesh specification, and the response to the change in the mesh specification. Analysis mesh manufacturing equipment has first means for registering, as an uncorrected sample, a combination of partial mesh data for a correction examining portion and CAD data associated therewith to a mesh correcting sample database, second means for storing mesh data and CAD data that are to be inspected, third means for retrieving, with respect to the mesh data and the CAD data that are to be inspected, a partial mesh that is similar to the mesh data and the CAD data of the uncorrected sample that are registered to the mesh correcting sample database, and fourth means for highlighting the retrieved partial mesh on a display device.

Abstract: Processes are disclosed for the preparation of octafluoro-[2,2]paracyclophane which utilize a low temperature, e.g., less than about 200.degree. C., and a reducing agent comprising titanium to promote the dimerization of dihalo-tetrafluoro-p-xylenes. One suitable reducing agent is prepared by combining TiCl.sub.4 with LiAlH.sub.4 in an organic solvent.