Kosko introduced the idea of additive fuzzy systems in a simple algebraic form that is the standard additive model in the book of "Fuzzy Engineering" in 1996.

The threat level of each factor is quantified by threat index method,and the weights of all factors are determined by engineering fuzzy set method.

According to the engineering fuzzy set theory,a method of target threat assessment for multi-aircraft cooperative air combat is proposed.

It introduce the origin and connotation of the concept of ecosystem health and provide some index that study eco system health degree,and apply engineering fuzzy set theory in the eco system health model available.

Collision avoidance action assessment of single-trawling vessels using multilevel fuzzy pattern recognition model of the engineering fuzzy set theory was made.

Theory and model of engineering variable fuzzy set ——Mathematical basis for fuzzy hydrology and water resources;

Study on fuzzy analysis on heat economic engineering of heat pump hot water system in northern of China;

Some factors such as physical environment, economic environment and engineering environment etc are considered, the method of fuzzy analysis on heat economic engineering is adopted, to make a comprehensive assessment between wastewater source heat pump system and other heating and air conditioning systems.

Considered some factors such as physical environment,economic environment and engineering environment etca,dopted the method of fuzzy analysis on heat economic engineeringt,o make a comprehensive assessment between wastewater source heat pump system and other heating and air conditioning systems.