Abstract: The invention relates to a diagnostic method and system for drip irrigation cotton with nitrogen nutrient deficit. First, the sensitive leaf layer of cotton is determined according to the growth stage of cotton, and the spectral reflectance and biomass of each functional leaf in the sensitive leaf layer are collected to calculate average spectral reflectance of the sensitive leaf layer and the maximum leaf biomass. Then, the critical nitrogen concentration was calculated according to the maximum leaf biomass. Finally, the nitrogen nutrition index of cotton is calculated according to the nitrogen concentration and the critical nitrogen concentration. The nitrogen nutrition index is used to characterize the abundance and deficiency of nitrogen nutrition in cotton, so as to determine the abundance and deficiency of nitrogen nutrition in cotton, which can reduce the calculation amount of nitrogen nutrition index, diagnose the abundance and deficiency of nitrogen nutrition in drip irrigation cotton.

Abstract: Provided is a visible light communication system. The system includes a modulation and light emission module configured to emit a communication light ray obtained by modulating information to be communicated; and a tracking and light sensing module configured to receive and demodulate the communication light ray to obtain the information to be communicated and further configured to align the tracking and light sensing module with the communication light ray according to the angle between the tracking and light sensing module and the communication light ray.

Abstract: A chimeric antigen receptor, comprising an amino acid sequence shown in SEQ ID NO. 1. A nucleic acid encoding the chimeric antigen receptor, a vector comprising the nucleic acid, an immune effector cell comprising the chimeric antigen receptor, the nucleic acid molecule and/or the vector, a method for preparing the immune effector cell, a composition comprising the immune effector cell, and use of the chimeric antigen receptor.

Abstract: Provided in the present disclosure is a method for using a four-plasmid system to prepare modified immune effector cells. The method comprises: forming a lentivirus by using four plasmids within 293T cells, extracting and obtaining the lentivirus, then transfecting immune effector cells by using the lentivirus, and expressing a chimeric antigen receptor. Also provided in the present disclosure is a use of the immune effector cell obtained by using the described method and of a composition containing the immune effector cell.

Abstract: A chimeric antigen receptor, comprising an amino acid sequence shown in SEQ ID NO. 1. A nucleic acid encoding the chimeric antigen receptor, a vector comprising the nucleic acid, an immune effector cell comprising the chimeric antigen receptor, the nucleic acid molecule and/or the vector, a method for preparing the immune effector cell, a composition comprising the immune effector cell, and use of the chimeric antigen receptor.

Abstract: Provided in the present disclosure is a method for using a four-plasmid system to prepare modified immune effector cells. The method comprises: forming a lentivirus by using four plasmids within 293T cells, extracting and obtaining the lentivirus, then transfecting immune effector cells by using the lentivirus, and expressing a chimeric antigen receptor. Also provided in the present disclosure is a use of the immune effector cell obtained by using the described method and of a composition containing the immune effector cell.

Abstract: Provided in the present disclosure is a method for using a four-plasmid system to prepare modified immune effector cells. The method comprises: forming a lentivirus by using four plasmids within 293T cells, extracting and obtaining the lentivirus, then transfecting immune effector cells by using the lentivirus, and expressing a chimeric antigen receptor. Also provided in the present disclosure is a use of the immune effector cell obtained by using the described method and of a composition containing the immune effector cell.

Abstract: A chimeric antigen receptor, comprising an amino acid sequence shown in SEQ ID NO. 1. A nucleic acid encoding the chimeric antigen receptor, a vector comprising the nucleic acid, an immune effector cell comprising the chimeric antigen receptor, the nucleic acid molecule and/or the vector, a method for preparing the immune effector cell, a composition comprising the immune effector cell, and use of the chimeric antigen receptor.