Abstract: A cholecystokinin (CCK) secretion-promoting peptide targeting a calcium-sensing receptor (CaSR), and a preparation method and use thereof are provided. The CCK secretion-promoting peptide targeting a CaSR is a QGDVVALPA active peptide and has an amino acid sequence as follows: Gln-Gly-Asp-Val-Val-Ala-Leu-Pro-Ala. Compared with the prior art, the active peptide is allowed to be artificially synthesized through a chemical solid phase synthesis method, and is allowed to be obtained by an enzymatic hydrolysis of oat protein, separation and purification. The active peptide is allowed to target the CaSR of an intestinal endocrine cell membrane to activate a Gq signal pathway, thereby further increasing an intracellular calcium ion concentration to significantly promote secretion of CCK by an intestinal endocrine cell; and moreover, the active peptide has the advantages of safety, no toxic side effect, tolerance to digestive enzyme hydrolysis of a gastrointestinal tract, easy absorption, etc.

Abstract: A method for improving the resistance of a ceramic PTC thermal element to reduction is provided, belonging to the technical field of preparation of electronic components. The ceramic PTC thermal element is barium titanate based. The method includes: filling a material container body with the barium titanate based ceramic PTC thermal element; loading the material container body containing the element into a magnetron sputtering apparatus; sputtering, by the magnetron sputtering apparatus, an inorganic material as a target material onto the surface of the element when the material container body is in a rotating state, thereby forming a thin film layer of the inorganic material on the surface; and after the magnetron sputtering is completed, taking out the material container body containing the element with the thin film layer of the inorganic material combined on the surface, and performing high-temperature heat treatment.

Abstract: Provided are a multilayer chip ZnO varistor with base metal inner electrodes and a preparation method thereof. The varistor is formed by ceramic sheets and inner electrodes which were alternately laminated. Wherein the main material of inner electrodes is the base metal nickel(Ni), both ends of the varistor are coated with silver electrodes.

Abstract: Provided are a laminated chip composite resistor combining a thermistor and a varistor, and a preparation method thereof. The composite resistor comprises a varistor part, a transition layer part and a thermistor part overlapped sequentially, wherein the varistor part is formed by alternately laminating a ceramic layer of a varistor, a first electrode layer, another ceramic layer of a varistor and a second electrode layer; the thermistor part is formed by alternately laminating a ceramic layer of a thermistor, a third electrode layer, another ceramic layer of a thermistor and a fourth electrode layer; and the transition layer part is located between the thermistor part and the varistor part. Co-firing is employed and the base metal Ni is the main material of inner electrodes, which can reduce costs, simplify the preparation process, and improve the reliability.

Abstract: Provided are a laminated chip composite resistor combining a thermistor and a varistor, and a preparation method thereof. The composite resistor comprises a varistor part, a transition layer part and a thermistor part overlapped sequentially, wherein the varistor part is formed by alternately laminating a ceramic layer of a varistor, a first electrode layer, another ceramic layer of a varistor and a second electrode layer; the thermistor part is formed by alternately laminating a ceramic layer of a thermistor, a third electrode layer, another ceramic layer of a thermistor and a fourth electrode layer; and the transition layer part is located between the thermistor part and the varistor part. Co-firing is employed and the base metal Ni is the main material of inner electrodes, which can reduce costs, simplify the preparation process, and improve the reliability.

Abstract: Provided are a multilayer chip ZnO varistor with base metal inner electrodes and a preparation method thereof. The varistor is formed by ceramic sheets and inner electrodes which were alternately laminated. Wherein the main material of inner electrodes is the base metal nickel(Ni), both ends of the varistor are coated with silver electrodes.

Abstract: An RFID-based sensing system includes a piezoelectric arrangement mountable at least partially on a structure, an RFID transponder connected to the piezoelectric arrangement, and an antenna connected to the RFID transponder and/or being integrated into the RFID transponder. The piezoelectric arrangement and/or the RFID transponder are adapted to convert kinetic energy provided by the structure into electrical energy usable for powering the RFID transponder and to generate sensing information with respect to a state of the structure. The RFID-based sensing system also includes an RFID reader.