Abstract: The present disclosure discloses an ionizable cationic lipid analog material and use thereof as a drug delivery carrier. In the present disclosure, a series of cationic lipid analog materials are reasonably designed, and a preparation method of the cationic lipid analog materials involves mild reaction conditions, a simple process, and excellent stability. The cationic lipid analog materials have excellent biocompatibility, and can allow an efficient and safe intracellular delivery of a biomacromolecular drug. The cationic lipid analog materials can also be used as delivery carriers for other types of drugs.

Abstract: The present invention discloses a pulp molding negative angle container comprising a conical pulp container which is open on the upper end, wherein: the inner wall of the open end of the pulp container has a separation space which is inclined downwards and set outwards; a protruding shoulder is provided on the outer wall of the open end of the pulp container, wherein the outer diameter of the protruding shoulder is larger than the inner diameter of the hole on the open end; wherein when two pulp containers are nested over each other, the protruding shoulder is placed on the upper hole of the open end and a separation gap is formed between the separation space on one pulp container and the outer wall on the other pulp container. The process comprises: A. injection; B. demolding. The present invention can greatly reduce the difficulty of separation.

Abstract: A cover (200) and a manufacturing method therefor. The cover (200) comprises a dispensing port (212), a detachable plug (250) that is located at the peripheral edge (230) of the cover (200) and integrally formed with the cover (200), and a recess (222). When a sealing structure is formed between the cover (200) and a cup (100), the dispensing port (212) is used for providing an outlet for contents present in the cup (100). The detachable plug (250) comprises a protrusion (255), and the protrusion (255) is used to form another sealing structure between the protrusion (255) and the dispensing port (212). The recess (222) is configured to be detachably coupled with the protrusion (255) so as to keep the detachable plug (250) in the vicinity of the cover (200) when the detachable plug (250) is not in use.

Abstract: A safety box comprises a paper pulp outer box (1) and a paper pulp inner box (2), where buckle holes (11) are provided in the two side edges of the paper pulp outer box respectively, the paper pulp inner box enters the paper pulp outer box from the inner box inlet and outlet opening (10), and outwardly protruding buckles (20) on the two side edges of the paper pulp inner box become fastened in the buckle holes arranged on the two side edges of the paper pulp outer box respectively, the wall thickness of the outwardly protruding buckles is equal to that of the paper pulp inner box, and the two outwardly protruding buckles oppositely deform inwards under external force so as to force the outwardly protruding buckles to be separated from the buckle holes while pushing out the paper pulp inner box.

Abstract: A pulp molded folding spoon, comprising a holding portion (1) and a spoon bowl (2) connected to the front end of the holding portion (1). The holding portion (1) comprises an elongated sheet-like body (10); the front end of the sheet-like body (10) is connected to the opening of the spoon bowl (2); the sheet-like body (10) is provided with a Y-shaped folding line (11) distributed in the length direction of the sheet-like body (10); and a reinforcing rib I (12) is located between two opposite folding lines of the Y-shaped folding line (11). The structural strength can be improved and the service life can be prolonged.

Abstract: A connecting structure for a molded paper pulp cup cover comprising a tearable turnover flip cover integrally formed with and arranged on a cup cover plate, where a drinking hole is formed after the flip cover is overturned. The rear side of the flip cover is connected to the hole wall of the drinking hole by at least one turnover stress connection point; the circumferential side edge of the flip cover is connected to the drinking hole by a tear line that comprises a U-shaped section and arc-shaped sections located at the two ends of the U-shaped section; tearable connecting points are formed between the U-shaped section and the arc-shaped sections and a vertical distance from the tearable connecting points to the bottom of the U-shaped section is greater than a vertical distance from the tearable connecting points to the turnover stress connecting points.

Abstract: The present invention discloses a pulp molding negative angle container comprising a conical pulp container which is open on the upper end, wherein: the inner wall of the open end of the pulp container has a separation space which is inclined downwards and set outwards; a protruding shoulder is provided on the outer wall of the open end of the pulp container, wherein the outer diameter of the protruding shoulder is larger than the inner diameter of the hole on the open end; wherein when two pulp containers are nested over each other, the protruding shoulder is placed on the upper hole of the open end and a separation gap is formed between the separation space on one pulp container and the outer wall on the other pulp container. The process comprises: A. injection; B. demolding. The present invention can greatly reduce the difficulty of separation.

Abstract: Disclosed is a method for qualitative and quantitative determination of key substances in mixture based on terahertz spectrum. Terahertz spectrum of a reference mixture is trained through an SVR algorithm, and predicting parameters of key substances in the mixture to be determined after a model is generated. According to the method, an initial pure spectrum corresponding to each composition in the mixture does not need to be separately determined, no limitation on the number of samples contained in the mixture, and no limitation on frequency range to be determined, and the proportion requirement of the mixture in the early test stage is not limited, and the SVR model does not need to be re-trained after a database is formed in the later stage, and the result can be obtained immediately after the spectrum of item to be determined is introduced into the algorithm model.

Abstract: A buckling structure includes a cover and a box, wherein the cover and box are each made of paper, plastic, or a combination thereof.

Abstract: Disclosed herein are an installation assembly (1), an instrument (2) and an installation method for a radio frequency identification tag. The installation assembly (1) comprises a first housing unit (11) mounted on the instrument (2) and a second housing unit (14) snapped-fitted with the first housing unit (11) to form a receiving space for receiving the radio frequency identification tag (13). The radio frequency identification tag (13) can be easily installed on the instrument (2) by snapping-fitting the first housing unit (11) with the second housing unit (14), thereby effectively enhancing installation efficiency and reliability of the radio frequency identification tag (13).

Abstract: The present disclosure provides methods and apparatuses for predicting road conditions based on big data. One exemplary method comprises: collecting driving data associated with a road section; comparing the collected driving data with a normal observation sample to determine whether the driving data is abnormal data, putting the abnormal data and the road section into an abnormality database in response to the driving data being abnormal data, and continuously recording driving data of this road section; determining whether the road section is an abnormal road section according to the number of occurrences of abnormal data associated with the road section; and predicting a reason for the abnormality of the road section determined as the abnormal road section, according to a preset model. The technical solutions provided by the present disclosure can help accurately predict road conditions by analyzing big data, thereby saving manpower and material resources.

Abstract: A method for quantitative detection of blood lipid in blood based on terahertz spectroscopy, including: matching the terahertz spectral absorption coefficient curves of blood samples obtained in step 3 with parameters of component concentration and component type of the blood lipid detected by hospital instruments, and establishing a terahertz blood lipid parameter database by combining the time-domain signal data of samples of the triglyceride and cholesterol; determining parameters of a support vector regression (SVR) model; performing a training with the training set as input to the SVR model to obtain a support vector and a corresponding weight; and testing the test set of an unknown blood sample using the trained support vector and the corresponding weight.

Abstract: Disclosed is a negative angle pulp molded cup lid, wherein the cup lid is made of pulp and comprises a top portion (1) and a side portion (2) connected to an edge of the top portion (1). An inner wall of the side portion (2) has an inner conical surface (31), the inner conical surface (31) forms an angle of less than 90° with a lower surface of the top portion (1), and the inner diameter of the inner conical surface (31) gradually decreases from top to bottom, such that the sealing property and the structural strength can be improved.

Abstract: The present invention discloses a pulp molding negative angle container comprising a conical pulp container which is open on the upper end, wherein: the inner wall of the open end of the pulp container has a separation space which is inclined downwards and set outwards; a protruding shoulder is provided on the outer wall of the open end of the pulp container, wherein the outer diameter of the protruding shoulder is larger than the inner diameter of the hole on the open end; wherein when two pulp containers are nested over each other, the protruding shoulder is placed on the upper hole of the open end and a separation gap is formed between the separation space on one pulp container and the outer wall on the other pulp container. The process comprises: A. injection; B. demolding. The present invention can greatly reduce the difficulty of separation.

Abstract: A method for quantitative detection of blood lipid in blood based on terahertz spectroscopy, including: matching the terahertz spectral absorption coefficient curves of blood samples obtained in step 3 with parameters of component concentration and component type of the blood lipid detected by hospital instruments, and establishing a terahertz blood lipid parameter database by combining the time-domain signal data of samples of the triglyceride and cholesterol; determining parameters of a support vector regression (SVR) model; performing a training with the training set as input to the SVR model to obtain a support vector and a corresponding weight; and testing the test set of an unknown blood sample using the trained support vector and the corresponding weight.

Abstract: Disclosed is a method for qualitative and quantitative determination of key substances in mixture based on terahertz spectrum. Terahertz spectrum of a reference mixture is trained through an SVR algorithm, and predicting parameters of key substances in the mixture to be determined after a model is generated. According to the method, an initial pure spectrum corresponding to each composition in the mixture does not need to be separately determined, no limitation on the number of samples contained in the mixture, and no limitation on frequency range to be determined, and the proportion requirement of the mixture in the early test stage is not limited, and the SVR model does not need to be re-trained after a database is formed in the later stage, and the result can be obtained immediately after the spectrum of item to be determined is introduced into the algorithm model.

Abstract: A pulp molding negative angle container comprises a conical pulp container which is open on the upper end. The inner wall of the open end of the pulp container has a separation space which is inclined downwards and set outwards. A protruding shoulder is provided on the outer wall of the open end of the pulp container, wherein the outer diameter of the protruding shoulder is larger than the inner diameter of the hole on the open end. When two pulp containers are nested over each other, the protruding shoulder is placed on the upper hole of the open end and a separation gap is formed between the separation space on one pulp container and the outer wall on the other pulp container.

Abstract: Disclosed herein are an installation assembly (1), an instrument (2) and an installation method for a radio frequency identification tag. The installation assembly (1) comprises a first housing unit (11) mounted on the instrument (2) and a second housing unit (14) snapped-fitted with the first housing unit (11) to form a receiving space for receiving the radio frequency identification tag (13). The radio frequency identification tag (13) can be easily installed on the instrument (2) by snapping-fitting the first housing unit (11) with the second housing unit (14), thereby effectively enhancing installation efficiency and reliability of the radio frequency identification tag (13).

Abstract: A surgical instrument and a method for installing a RFID label on the surgical instrument are provided. The surgical instrument includes a surgical instrument body, a RFID label and an adhesive, the surgical instrument body and the RFID label are fixedly connection by the adhesive, the adhesive comprises a first adhesive and a second adhesive; the first adhesive is disposed between a bottom surface of the RFID label and a surface of the surgical instrument body, the other surfaces of the RFID label are covered by the second adhesive, the second adhesive also covers an intersection of the RFID label with the surgical instrument body; and the first adhesive and the second adhesive are different types of adhesives, and an adhesive intensity of the first adhesive is greater than an adhesive intensity of the second adhesive, and fluidity of the second adhesive is greater than fluidity of the first adhesive.

Abstract: A surgical instrument and a method for installing a RFID label on the surgical instrument are provided. The surgical instrument includes a surgical instrument body, a RFID label and an adhesive, the surgical instrument body and the RFID label are fixedly connection by the adhesive, the adhesive comprises a first adhesive and a second adhesive; the first adhesive is disposed between a bottom surface of the RFID label and a surface of the surgical instrument body, the other surfaces of the RFID label are covered by the second adhesive, the second adhesive also covers an intersection of the RFID label with the surgical instrument body; and the first adhesive and the second adhesive are different types of adhesives, and an adhesive intensity of the first adhesive is greater than an adhesive intensity of the second adhesive, and fluidity of the second adhesive is greater than fluidity of the first adhesive.