Abstract: The present invention provides a loop-type microfluidic system, and the microfluid therein could be driven to move around the loop-channel repeatedly by the air comes from the air holes and through the driving conduits. In order to process the polymerase chain reaction (PCR), the microfluid should bear the temperature changes for three times. Hence, plural temperature controllers are utilized to adjust the temperatures of the sections constituting the loop-channel. Moreover, the times of cycles may be determined based on the desired times of reactions. The present invention could also increase or decrease the number of the air holes, the driving conduits and the temperature controllers to adjust the times of temperature changes according to the demands of various biochemical reactions.

Abstract: The present invention relates to a replaceable module for a notebook computer, the said module is disposed on an external housing body of a display apparatus of a notebook computer, a component with at least one function is installed on a circuit board mounted inside the said module, thereby when the said module is connected onto the said external housing body, the said notebook computer can utilize the function possessed by the said module; while the said notebook computer needs to utilize another function, it is only necessary to install the said module mounted with another circuit board of the said another function to the said notebook computer, thereby to facilitate the notebook computer to conduct upgrading and maintenance.