853 research outputs found
Systems approach to engineering education design
[Abstract]:
The design and delivery of effective engineering education to diverse cohorts of adult learners is challenging. The sheer volume and diversity of published literature relating to the scholarship of teaching and learning presents a challenge to educational designers and teaching practitioners alike. A systems approach to design and development, incorporating key principles from the literature, can assist practitioners (particularly those new to teaching) in the effective design and delivery of technical courses. This paper presents a research-based educational lifecycle model to support the design of engineering education. The paper then describes a requirements-driven development methodology that has been applied successfully to the design and delivery of a number of technical courses involving different cohorts of adult learners. The application of the methodology to development of an introductory radar systems course is used as a case study throughout the paper
An All Linear Optical Quantum Memory Based on Quantum Error Correction
When photons are sent through a fiber as part of a quantum communication
protocol, the error that is most difficult to correct is photon loss. Here, we
propose and analyze a two-to-four qubit encoding scheme, which can recover the
loss of one qubit in the transmission. This device acts as a repeater when it
is placed in series to cover a distance larger than the attenuation length of
the fiber, and it acts as an optical quantum memory when it is inserted in a
fiber loop. We call this dual-purpose device a ``quantum transponder.''Comment: 4 pages, 5 figure
Michel decay spectrum for a muon bound to a nucleus
The spectrum of electrons from muons decaying in an atomic bound state is
significantly modified by their interaction with the nucleus. Somewhat
unexpectedly, its first measurement, at the Canadian laboratory TRIUMF,
differed from basic theory. We show, using a combination of techniques
developed in atomic, nuclear, and high-energy physics, that radiative
corrections eliminate the discrepancy. In addition to solving that outstanding
problem, our more precise predictions are potentially useful for interpreting
future high-statistics muon experiments that aim to search for exotic
interactions at sensitivity.Comment: 6 pages, 4 figures, Alberta Thy 7-14 v2: Expanded discussion. Journal
versio
Individual Rights to Privacy and Corporate E-mail
E-mail continues to gain popularity as a medium for business communication. Despite considerable attention recently in the popular press, attitudes and behaviors toward e-mail privacy remain adamantly inconsistent with current organizational policies and legal positions (Behar, 1997). In the U.S., employers have the legal right to read messages sent or received by their employees over company equipment. Employees, however, feel that e-mail should be private. An experiment is conducted to further explore user attitudes toward e-mail privacy and conditions under which organizations should be allowed to monitor employee e-mai
Poster 449 Ketotic Hypoglycemia in RYRâ1 Central Core Myopathy: A Case Report
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/147182/1/pmr2s344a.pd
Inefficiency of classically simulating linear optical quantum computing with Fock-state inputs
Aaronson and Arkhipov recently used computational complexity theory to argue
that classical computers very likely cannot efficiently simulate linear,
multimode, quantum-optical interferometers with arbitrary Fock-state inputs
[Aaronson and Arkhipov, Theory Comput. 9, 143 (2013)]. Here we present an
elementary argument that utilizes only techniques from quantum optics. We
explicitly construct the Hilbert space for such an interferometer and show that
its dimension scales exponentially with all the physical resources. We also
show in a simple example just how the Schr\"odinger and Heisenberg pictures of
quantum theory, while mathematically equivalent, are not in general
computationally equivalent. Finally, we conclude our argument by comparing the
symmetry requirements of multiparticle bosonic to fermionic interferometers
and, using simple physical reasoning, connect the nonsimulatability of the
bosonic device to the complexity of computing the permanent of a large matrix.Comment: 7 pages, 1 figure Published in PRA Phys. Rev. A 89, 022328 (2014
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