5results about How to "Improve security features" patented technology

This invention belongs to the field of biomedical technology, specifically relating to triptolide liposomes (TP-lipo), their combined use, and their application in the prevention and treatment of tumors. To enhance the efficacy of triptolide in the treatment and prevention of tumors such as pancreatic cancer, cervical cancer, ovarian cancer, and colorectal cancer, and to improve its bioavailability and clinical application while reducing toxicity, this invention uses HSPC, DOPS, and cholesterol as liposome components to encapsulate triptolide monomers, thus preparing TP-lipo. Experiments have shown that TP-lipo exhibits anti-tumor activity: it directly kills tumor cells and reverses the immunosuppressive microenvironment, making it a potential drug for tumor treatment. TP-lipo, when used in combination with PD-1 antibodies, or in combination with radiotherapy, chemotherapy, or surgery, demonstrates a potent and synergistic anti-tumor effect with low toxicity. Therefore, the TP-lipo of this invention provides more clinical strategies for tumor treatment.

The utility model discloses a kind of ceramic suction disc fine grinding mechanism, belong to ceramic suction disc processing field.A kind of ceramic suction disc fine grinding mechanism, including frame, the upper surface of frame is centrally provided with polishing table, and polishing table both ends are symmetrically provided with conveyer belt, the upper surface of frame and located the both sides of conveyer belt are equipped with truss, slidingly connected with connecting piece between truss, the perpendicular intersection of the median line of polishing table and the sliding path of connecting piece, polishing head and second cylinder are installed on connecting piece, and the end of second cylinder is connected with suction disc;The utility model can flexibly control polishing head position by the connecting piece slidingly connected between truss, the perpendicular intersection of the median line of polishing table and the sliding path of connecting piece, can accurately polish ceramic suction disc on polishing table in all directions, dust pan is set on frame, effectively collect the dust generated by polishing, keep working environment clean, conducive to long-term stable operation of equipment and operator health.

This disclosure discloses an aqueous high-voltage electrolyte and its preparation method, as well as a supercapacitor, belonging to the field of supercapacitor technology. The preparation method of the aqueous high-voltage electrolyte includes: adding an electrolyte salt to deionized water and stirring until the electrolyte salt is completely dissolved to obtain a mixed solution; adding a high-voltage additive and a hydrogen-eliminating additive to the mixed solution, and stirring to obtain the aqueous high-voltage electrolyte. This disclosure utilizes the synergistic effect of two additives, which preferentially adsorb at the electrode / electrolyte interface. By adjusting the interfacial double-layer structure, disrupting the hydrogen bond network of water molecules, or forming a protective layer, these additives effectively increase the water decomposition overpotential, thereby achieving a stable widening of the operating voltage window without significantly altering the basic composition and physicochemical properties of the electrolyte.

The application discloses a circuit board for an automatic medical injector and a production process thereof, and particularly relates to the technical field of circuit board manufacturing. The circuit board for the automatic medical injector adopts an elastic bending-resistant substrate as a substrate, selects elastic metal as a raw material, adds polyether in synthetic fibers, has good mechanical physical properties and good temperature resistance, and adds plasticizers and organic silicon as an auxiliary. The circuit board has high and low temperature resistance, electrical insulation, oxidation resistance stability, and a reinforcing layer as metal rubber. The structure is stable, and the elastic bending-resistant substrate has good elasticity, toughness and bending resistance. The use of transparent film coating and protective film double-protects the upper surface of the circuit board body, has good protection effect, avoids the phenomenon that the surface of the elastic bending-resistant substrate is damaged due to damage of the transparent film coating, improves the structure of the circuit board body, and improves the safety function of the circuit board body.

This invention discloses a method for biasing 4-byte floating-point latitude and longitude coordinates based on a Feistel network. The method first converts the floating-point number into a binary representation in IEEE 754 format. The modification bit of the mantissa is determined based on the exponent, and this modification bit is inverted. An initial key is determined based on the exponent, and a 16-round key is generated using the SHA256 algorithm. The content of the byte following the modification bit is then encrypted using Feistel for 16 rounds. Finally, the data is converted back to an IEEE 754 floating-point number, thus achieving biasing. This invention employs a 16-round Feistel network for efficient operation, uses the SHA-256 hash function to generate a keystream for enhanced security, and can accurately recover the original data through inverse transformation. Therefore, it is efficient, secure, and reversible, making it suitable for spatial query services that require protection of latitude and longitude data privacy and error tolerance.