The dynamical problem of a variable frequency oscillator perturbed by an inverse square potential with a force quadratic in velocity is resolved by the nonlinear superposition law.

Based on the measured value of P&H 2300 XP excavator, this paper analyzed great deal of the data of bucket and resolved the restrain of bucket boundary and the calculation load at the tooth by using the principle of linear superposition of the force.

Using the principle of superposition,a simplified computational method of mass concrete surface temperature change,the lowest temperature value and temperature stress is provided when the temperature drops quickly.

Flat plate steady mathematical model and non steady symmetric model are presented, the analytical solution of temperature of powder is derived on the basis of non steady symmetric model in spheroidal coordinates with the methods of mathematical transformation and principle of superposition.

The energy of electric field stored in the capacitor placed in an alternating electromagnatic field is concluded by using the principle of superposition and by starting with Maxwell equations.

The electric current density fields superposition principle and its applications;

An improved power flow algorithm for meshed distribution networks based on superposition principle and forward/backward sweep method;

Analyses on the essence of problems about superposition principle of quantum states;

Linear equations,superposition theorem, and complex exponential expression;

Furthermore, the superposition theorem is then adopted in the approach, which overcomes the difficulties when applying the symmetrical components to the short circuit calculation.

<Abstrcat> This paper analyses operation accuracy that is influenced by the open input resistance of operation amplifier by means of superposition theorem.