Abstract: The present invention relates to a kit and a method for evaluating toxicity of a waterbody sample by a spore release of a green alga Ulva. The kit for evaluating the toxicity of a waterbody sample comprises a capsule-type bioware that includes the leaf of the green alga Ulva prepared in a coin shape; a small cylinder for measuring a volume of a waterbody sample; an artificial salt for controlling growth conditions of the leaf of the green alga Ulva; a dividing measurement film or magnifying glass for measuring the area with changed color into white in the leaf of the green alga Ulva; and a standard toxic solution. The toxicity is evaluated based on the color change (particularly, the change into white color) due to the spore release of the green alga Ulva.

Abstract: The present invention discloses an ALU (Arithmetic Logic Unit) that can be operated as an OR gate, an AND gate, an adder gate and an exclusive OR gate using a half adder that uses a superconductor rapid single flux quantum logic device. The ALU using a half adder includes a half adder using a superconductor rapid single flux quantum logic device as a logic circuit, and a switching unit that has input ports respectively connected to a sum output port and a carry output port of the half adder and is operated as an OR gate, an AND gate, an adder gate and an exclusive OR gate using output signals of the half adder. The switching unit includes a first switch having an input port connected to the sum output port of the half adder, a second switch having an input port connected to the carry output port of the half adder and an output port connected to an output port of the first switch, and a third switch having an input port connected to the carry output port of the half adder.