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physics.class-ph2009★ 2 cited
The Gaussian formula and spherical aberration of the static and moving curved mirrors from Fermat's principle
Sylvia H. Sutanto, Paulus C. Tjiang
The Gaussian formula and spherical aberrations of the static and relativistic curved mirrors are analyzed using the optical path length (OPL) and Fermat's principle. The geometrica…
physics.class-ph2006★ 16 cited
Efficiency of Carnot Cycle with Arbitrary Gas Equation of State
Paulus C. Tjiang, Sylvia H. Sutanto
The derivation of the efficiency of Carnot cycle is usually done by calculating the heats involved in two isothermal processes and making use of the associated adiabatic relation f…
physics.class-ph2003
On the Derivation of Conserved Quantities in Classical Mechanics
Paulus C. Tjiang, Sylvia H. Sutanto
Using a theorem of partial differential equations, we present a general way of deriving the conserved quantities associated with a given classical point mechanical system, denoted…