Sentence examples for some physical systems from inspiring English sources

What exactly qualifies some physical systems to play the role of "measurer"?

Linear differential equations subject to some boundary conditions arise in the mathematical description of some physical systems.

Due to this fact singular systems can better describe and analyze the behavior of some physical systems than regular ones by standard state-space systems [28, 29].

Recently, there have, indeed, been publications on some physical systems that can be described by the model with periodic disturbances [40].

Thus, particles' positions and their wave function determine the outcomes of any measurements (so long as these outcomes are recorded in the positions of some physical systems, as in any practical measurements).

It describes how the quantum state of some physical system changes with time.

If so, there has to be some natural fact of the matter about whether some physical system is dysfunctional.

In quantum mechanics, the Schrödinger equation is a partial differential equation that describes how the quantum state of some physical system changes with time.

In statistical thermodynamics, the entropy S of some physical system is defined as S = - k \sum_i p_i \ln(p_i).\, The sum is over all possible states i of the system in question, such as the positions of gas particles in a container.

The latter type of equations, in particular, may be used to represent some nontrivial physical systems as, for instance, constrained systems (see e.g.[2]).[2]

Some typical physical systems that exhibit impulsive behaviour include the action of a pendulum clock, mechanical systems subject to impacts, the maintenance of a species through periodic stocking or harvesting, the thrust impulse maneuver of a spacecraft, and the function of the heart.