Abstract: The present application belongs to the technical field of biology. Provided is a photobioreactor used for algae cultivation, said photobioreactor comprising: a reactor main body, a separation unit, and a first aeration device. The reactor main body is a sealed irregular tubular shape, the separation unit is located within the reactor main body, and divides the reactor main body into two spaces, a left space and a right space, and the first aeration device is connected to a bottom portion of the reactor main body. Also provided is an algae cultivation system, comprising the photobioreactor, the second aeration device, and a temperature control system, and being capable of regulating the temperature of an algae solution.

Abstract: A method and apparatus for switching device, wherein the apparatus includes a clamp block (44) configured for attachment to a rail end point (12,14), the clamp block (44) including a housing (64) having a slot (66) formed therein, and a clip (42) configured to be received in the slot (66). The clip (42) disengageable from the slot (66) upon application of a generally lateral trailing force to the rail end point (12,14) in excess of a threshold value.

Abstract: A method and apparatus for switching device, wherein the apparatus includes a clamp block (44) configured for attachment to a rail end point (12,14), the clamp block (44) including a housing (64) having a slot (66) formed therein, and a clip (42) configured to be received in the slot (66). The clip (42) disengageable from the slot (66) upon application of a generally lateral trailing force to the rail end point (12,14) in excess of a threshold value.