This paper will give several new types of the duals of binary irreducible cyclic codes,and some results on arithmatic properties of the codes in an open problem mentioned by .

Traditional parallelized compiler techniques use node splitting to make irreducible loops reducible,but will make code duplicate inevitably.

This paper discusses the physics process and the physics method of three representative irreversible Carnot cycle models, and gives out their schematic diagrams that make the physics pictures of the models.

Exergoeconomic performance optimization for universal model of irreversible heat engine cycles containing 7 heat engine models;