Titlebook: Food Bites; The Science of the F Richard Hartel,AnnaKate Hartel Book 2008 Springer-Verlag New York 2008 food engineering.food safety.food s

Spirometry

History of Gauge Theory,invariance principle in physics are described. The roles of Maxwell, V. Fock, Herman Weyl are provided. Then the Yang–Mills theory, the Glashow–Weinberg–Salam theory and Gell-mann’s theory are briefly introduced. Woon Siong Gan’s introduction of gauge invariance to acoustic fields equation is consid