Abstract: The present disclosure relates to novel crystalline forms of Blarcamesine hydrocholoride (hereinafter referred to as “compound I”), a method for preparing same, a pharmaceutical composition comprising the crystalline forms, and use of the crystalline forms in preparing a Sigma-1 receptor agonist and a medicament for treating Rett syndrome, Alzheimer's disease, and Parkinson's disease dementia.

Abstract: Provided are novel crystalline forms of Nirogacestat (Referred to as “Compound I”) dihydrobromide and preparation methods thereof, pharmaceutical compositions containing the crystalline forms, and uses of the crystalline forms for preparing ?-secretase inhibitor drugs and drugs for treating desmoid tumors. Compared with prior arts, the provided crystalline forms of Compound I dihydrobromide have one or more improved properties, which solve the problems of the prior art and are of great value to the optimization and development of the drugs.

Abstract: The present invention provides novel crystalline forms of Xevinapant and preparation methods thereof, pharmaceutical compositions containing the crystalline forms, and uses of the crystalline forms for preparing IAPs drugs and drugs for treating LA SCCHN.

Abstract: Provided are novel crystalline forms of Lanifibranor (Referred to as “Compound I”) and preparation methods thereof, pharmaceutical compositions containing the crystalline forms, and uses of the crystalline forms for preparing pan-PPAR agonists drugs and drugs for treating NASH. Compared with prior arts, the provided crystalline forms of Compound I have one or more improved properties, which solve the problems of the prior art and is of great value to the optimization and development of the drugs.

Abstract: The present invention provides novel crystalline forms of Xevinapant and preparation methods thereof, pharmaceutical compositions containing the crystalline forms, and uses of the crystalline forms for preparing IAPs drugs and drugs for treating LA SCCHN.

Abstract: The present disclosure provides compounds and salts thereof, and compositions, which are useful in the prevention and/or treatment of HIV.

Abstract: The present disclosure relates to a method for preventing a maloperation of differential protection of an optical fiber caused by saturation of a single Current Transformer (CT) of 3/2 connection. By applying a combination of the differential judgment and the sub-CT current judgment, reliable identification of internal and external faults is ensured, and the problem of misjudging of the internal fault as the external fault can be prevented as well.

Abstract: The present disclosure relates to a method for preventing a maloperation of differential protection of an optical fiber caused by saturation of a single Current Transformer (CT) of 3/2 connection. By applying a combination of the differential judgment and the sub-CT current judgment, reliable identification of internal and external faults is ensured, and the problem of misjudging of the internal fault as the external fault can be prevented as well.

Abstract: The invention relates to a frequency measuring method and measuring device. The method comprises: firstly sampling the current signal to be measured, and discretizing the sampled signals; secondly obtaining sampling matrixes [In] and [In,] of the current signal to be measured at time n and time n?1 from the discrete sampled signals, setting a reference frequency fref, constructing a reference voltage signal u(t) from fref, and discretizing u(t) to gain reference matrix; finally, attaining phase values of time n and time n?1 from the eigenvalues of matrixes [In]+[U] and [In?1]+[U], and determining a calculation frequency fcomp. The invention uses sampled matrixes constructed from the reference signals and the signals to be measured.