Abstract: A method and an equipment for comprehensive utilization of niobite is disclosed. The method includes the following steps: S1. adding and uniformly mixing a coal-based reducing agent to the niobite, and subsequently reducing the mixture in a reduction furnace to obtain the selective reduction product; S2. adding the selective reduction product to a super-gravity reactor where the ambient temperature is controlled to be lower than the temperature at which the niobium oxide is reduced; driven by super-gravity, reverse migrating and collecting the metal iron and the niobium-rich slag at different locations in the reactor; discharging the metallic iron tightly attached to the wall of the reactor through an iron discharging port, and discharging the niobium-rich slag enriched to the inner layer of the reactor through a slag discharging port, so that the separation of the metallic iron and the niobium-rich slag is realized in the super-gravity field.

Abstract: The present disclosure relates to a composite membrane and a packaging structure. The composite membrane comprises: a carrier layer; and an information layer, wherein the information layer is disposed on one side of the carrier layer along thickness direction of the composite membrane, and the information layer further comprises a light-transmitting layer, a first pattern layer, and a second pattern layer, which are disposed along the thickness direction of the composite membrane, wherein: the first pattern layer is disposed close to the carrier layer; the light-transmitting layer is disposed on one side of the first pattern facing layer away from the carrier layer; the second pattern layer is disposed on one side of the light-transmitting layer facing away from the carrier layer, and the second pattern layer and the first pattern layer present different visual information of one multi-dimensional object.

Abstract: The present disclosure relates to a composite membrane and a packaging structure. The composite membrane comprises: a carrier layer; and an information layer, wherein the information layer is disposed on one side of the carrier layer along thickness direction of the composite membrane, and the information layer further comprises a light-transmitting layer, a first pattern layer, and a second pattern layer, which are disposed along the thickness direction of the composite membrane, wherein: the first pattern layer is disposed close to the carrier layer; the light-transmitting layer is disposed on one side of the first pattern facing layer away from the carrier layer; the second pattern layer is disposed on one side of the light-transmitting layer facing away from the carrier layer, and the second pattern layer and the first pattern layer present different visual information of one multi-dimensional object.

Abstract: A double-effective vaccine vector against foot-and-mouth disease virus having a bicistronic expression vector sequence, the bicistronic expression vector sequence is an antisense gene sequence capable of conjugating with 5? UTR of RNA of the foot-and-mouth disease virus genome and an intact sequence of VP1 structural protein gene of the foot-and-mouth disease virus. Animal experiments show that the vaccine vector provides double effects in terms of gene therapy and gene immunization for the prevention and treatment of foot-and-mouth disease in animals. Also provided are construction methods and methods of use of the vaccine vector.

Abstract: A double-effective vaccine vector against foot-and-mouth disease virus having a bicistronic expression vector sequence, the bicistronic expression vector sequence is an antisense gene sequence capable of conjugating with 5? UTR of RNA of the foot-and-mouth disease virus genome and an intact sequence of VP1 structural protein gene of the foot-and-mouth disease virus. Animal experiments show that the vaccine vector provides double effects in terms of gene therapy and gene immunization for the prevention and treatment of foot-and-mouth disease in animals. Also provided are construction methods and methods of use of the vaccine vector.

Abstract: An automatic scanning device (14) for automatically scanning bar codes attached on products conveyed on production lines includes a sensor (20), two bar code readers (22), an alert lamp (24), a buzzer (26), a halt switch (28), and a hand-held scanner (32). The sensor is used for detecting whether there are products passing through the automatic scanning device. The bar code readers are used for automatically scanning bar codes attached on products when the sensor detects products. The alert lamp and the buzzer are used for timely notifying an operator, the halt switch is used for halting an associated production line or part thereof, and the hand-held scanner is used for scanning the bar codes by hand, when the bar code readers fail to scan the bar codes. A related method is also provided.