Abstract: Systems and methods for motion correction in medical imaging are provided in the present disclosure. The systems may obtain at least two image sequences relating to a subject. Each of the at least two image sequences may be reconstructed based on image data that is acquired by a medical imaging device during one of at least two time periods. The subject may undergo a physiological motion during the at least two time periods. The systems may generate, based on the at least two image sequences, at least one corrected image sequence relating to the subject by correcting, using a motion correction model, an artifact caused by the physiological motion.

Abstract: Provided is a new-type cis-replicon construct for efficiently expressing a target protein, which comprises an RNA polymerase coding unit and a target protein coding unit. The replicon construct can drive the replication of the target protein coding unit and reduce or avoid the replication and expression of the RNA polymerase, thereby effectively improving the expression of the target protein and reducing the expression of the non-target protein.

Abstract: The present invention discloses an ASN.1 protocol processor for protocol interacting between the server and client and transformation between protocol data and byte stream data, comprising: a protocol data description module in which ASN.1 protocol is integrated and a protocol procedure module in which protocol procedure codes are integrated; wherein the protocol data description module stores ASN.1 protocol description information which is described by the eXtensible Markup Language (XML) and ASN.1 protocol data which are required by the protocol procedure and set according to the description information; and the protocol procedure module performs protocol interaction and protocol transformation based on the protocol procedure according to the information in the protocol data description module. An ASN.1 protocol processing method is also disclosed.