Abstract: Provided are a whole bacteria capsule, a preparation method therefor and a use thereof. The preparation method comprises the steps of: (1) screening fecal bacteria donors using high-throughput sequencing; (2) collecting feces of the fecal bacteria donors screened in step (1), and preparing a fecal bacterial liquid; and (3) mixing the fecal bacterial liquid prepared in step (2) with a freeze-drying protective agent, cooling, freezing and vacuum-drying the mixture, and loading the freeze-dried feces bacteria powder obtained into a capsule shell to obtain the whole bacteria capsule. By screening the fecal bacteria donors using high-throughput sequencing, fecal bacteria donors can be quickly screened for different fecal bacteria receptors, and the whole bacteria capsule prepared can accurately match with the fecal bacteria receptors.

Abstract: According to embodiments of the present invention, an energy harvesting device is provided. The energy harvesting device includes a plurality of energy harvesting elements, each energy harvesting element including a transducer, and at least one spring arranged in between at least two energy harvesting elements of the plurality of energy harvesting elements to mechanically couple the at least two energy harvesting elements to each other. According to further embodiments of the present invention, a method for forming an energy harvesting device is also provided.

Abstract: In various embodiments, a device for determining a property of a fluid may be provided. The device may include a fluid receiving structure configured to receive the fluid having a first condition. The device may further include a flow control structure coupled to the fluid receiving structure. The flow control structure may be configured to change the first condition of the fluid to a second condition. The device may further include a determination mechanism configured to determine the property of the fluid based on the second condition. The device may also include a voltage generation mechanism a voltage generation mechanism configured to generate a voltage based on the second condition.

Abstract: In various embodiments, a device for determining a property of a fluid may be provided. The device may include a fluid receiving structure configured to receive the fluid having a first condition. The device may further include a flow control structure coupled to the fluid receiving structure. The flow control structure may be configured to change the first condition of the fluid to a second condition. The device may further include a determination mechanism configured to determine the property of the fluid based on the second condition. The device may also include a voltage generation mechanism a voltage generation mechanism configured to generate a voltage based on the second condition.

Abstract: According to embodiments of the present invention, an energy harvesting device is provided. The energy harvesting device includes a microchannel arranged to receive a fluid, a bluff body arranged to interact with the fluid flowing through the microchannel to generate a vortex fluid street, and an energy harvesting element arranged to interact with the vortex fluid street to harvest energy from the fluid. According to further embodiments of the present invention, a method of harvesting energy is also provided.

Abstract: According to embodiments of the present invention, an energy harvesting device is provided. The energy harvesting device includes a plurality of energy harvesting elements, each energy harvesting element including a transducer, and at least one spring arranged in between at least two energy harvesting elements of the plurality of energy harvesting elements to mechanically couple the at least two energy harvesting elements to each other. According to further embodiments of the present invention, a method for forming an energy harvesting device is also provided.