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# The quantum mechanical description of large systems will closely approximate the classical description.
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# and quantum
# She can broadcast this ( quantum ) information, and Bob can obtain the information via some suitable receiver.
# Reductionism with respect to physics and questions regarding whether quantum mechanics can fully explain all chemical phenomena.
# Transmission Coefficient ( quantum mechanics ) ( dimensionless )-Represents the probability flux of a transmitted wave relative to that of an incident wave.
# in the other it corresponds to a probability distribution — specifically, the probability that the quantum of charge is located at any particular point within spatial dimensions.
# they are interpretations of a phenomenology, a set of observations, including both those obtained by empirical research, and more informal subjective ones ( the fact that humans invariably observe an unequivocal world is important in the interpretation of quantum mechanics ).
# The rapid rate at which quantum descriptions become more complicated as the size of a system increases.
# In the context of quantum mechanics, " classical theory " refers to theories of physics that do not use the quantisation paradigm, particularly Newtonian mechanics ( which is also known as classical mechanics ).
# the quantum kernel is instead of ( the quantum kernel is nonlocal from a classical heat kernel viewpoint, but it is local in the sense that it does not allow signals to be transmitted ),
# the quantum vacuum state is Lorentz invariant ( although not manifestly in the above ), whereas the classical thermal state is not ( the classical dynamics is Lorentz invariant, but the Gibbs probability density is not a Lorentz invariant initial condition ).
# Development of methods for solving quantum problems where the perturbation cannot be considered small in perturbation theory and where quantum numbers are large.
# Semiclassical methods such as periodic-orbit theory connecting the classical trajectories of the dynamical system with quantum features.
# ( finite ) for < math > r < r_0 </ math > and 0 elsewhere, or a particle in the spherical equivalent of the square well, useful to describe scattering and bound states in a nucleus or quantum dot.
# and mechanical
# Performing all calculations using electronics rather than wheels, ratchets, or mechanical switches
# PCB milling uses a two or three-axis mechanical milling system to mill away the copper foil from the substrate.
# powering the a / c, power steering, and other auxiliary pumps electrically as and when needed ; this reduces mechanical losses when compared with driving them continuously with traditional engine belts.
The cause of the crash was determined by the USAF to be the result of a mechanical problem with the # 1 aircraft's control stick actuator.
# The displacement type Stirling engines, known as beta and gamma types, use an insulated mechanical displacer to push the working gas between the hot and cold sides of the cylinder.
# Exfoliative Cytology – In this method, cells are collected after they have been either spontaneously shed by the body (" spontaneous exfoliation ") or manually scraped / brushed off of a surface in the body (" mechanical exfoliation ").
# An endotracheal tube is inserted and secured by the anaesthetist and mechanical ventilation is started.
# " Articulated Tug and Barge " ( ATB ) units also utilize mechanical means to connect to their barges.
Winchell, who had medical training, was also an inventor, becoming the first person to build and patent a mechanical artificial heart, implantable in the chest cavity ( US Patent # 3097366 ).
# Circuit disconnect alarm or low pressure alarm indicates failure of circuit to achieve a given pressure during mechanical ventilation.
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