Results 81 to 90 of about 6,064,533 (415)

Surface/Interface Chemistry Engineering of Correlated‐Electron Materials: From Conducting Solids, Phase Transitions to External‐Field Response

open access: yesAdvanced Science, 2021
Correlated electronic materials (CEMs) with strong electron−electron interactions are often associated with exotic properties, such as metal‐insulator transition (MIT), charge density wave (CDW), superconductivity, and magnetoresistance (MR), which are ...
Zejun Li, Qiran Wu, Changzheng Wu
doaj   +1 more source

Quantum point contacts as heat engines [PDF]

open access: yesPhysica E 74, 447 (2015), 2015
The efficiency of macroscopic heat engines is restricted by the second law of thermodynamics. They can reach at most the efficiency of a Carnot engine. In contrast, heat currents in mesoscopic heat engines show fluctuations. Thus, there is a small probability that a mesoscopic heat engine exceeds Carnot's maximum value during a short measurement time ...
arxiv   +1 more source

AAPM Task Group No. 249.B—Essentials and guidelines for clinical medical physics residency training program

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract The establishment of guidelines and curriculum standards for medical physics residency training is a critical component of setting expectations and competencies for the profession. Since the last publication of these standards, residency training has become integrated into the eligibility criteria for most medical physics certification bodies.
Jonathon A. Nye   +16 more
wiley   +1 more source

Missing linkers : an alternative pathway to UiO-66 electronic structure engineering [PDF]

open access: yes, 2017
UiO-66 is a promising metal-organic framework for photocatalytic applications. However, the ligand-to-metal charge transfer of an excited electron is inefficient in the pristine material.
De Vos, Arthur   +4 more
core   +3 more sources

Effects of Electron-Electron Scattering on Electron-Beam Propagation in a Two-Dimensional Electron-Gas [PDF]

open access: yes, 2000
We have studied experimentally and theoretically the influence of electron-electron collisions on the propagation of electron beams in a two-dimensional electron gas for excess injection energies ranging from zero up to the Fermi energy. We find that the detector signal consists of quasiballistic electrons, which either have not undergone any electron ...
arxiv   +1 more source

Quantitative quality control of 3D water tank using image analysis

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Background and objective Accurate beam data acquisition using three‐dimensional (3D) water tanks is essential for beam commissioning and quality control (QC) in clinical radiation therapy. This study introduces a novel method for quantitative QC of the system, utilizing MV images and webcam videos.
Yuki Tanimoto   +9 more
wiley   +1 more source

Towards a Security Engineering Process Model for Electronic Business Processes

open access: yes, 2012
Business process management (BPM) and accompanying systems aim at enabling enterprises to become adaptive. In spite of the dependency of enterprises on secure business processes, BPM languages and techniques provide only little support for security ...
Eichler, Jörn
core   +3 more sources

Gravitational Wave & Relativity Impact Electronic Communication & Engineering

open access: yesMATEC Web of Conferences, 2017
About a few months ago (Feb 11, 2016), the LIGO (Laser Interferometer Gravitational-Wave Observatory) scientist team researchers made an announcement that they had confirmed the gravitational wave already detected on Sept 14, 2015 (by LIGO’s twin ...
Zakaria Shahrudin   +2 more
doaj   +1 more source

Towards better understanding of factors contributing to medical physicist well‐being in academic medical centers: A systems‐analysis approach

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract The well‐being of medical physicists can impact overall system performance, patient safety, and quality of patient care. There are limited formal assessments of factors contributing to physicists well‐being. Nine medical physicists at a US academic medical center were surveyed on 21 workplace factors, drawn from the National Academy of ...
Elizabeth Kwong   +13 more
wiley   +1 more source

Engineering - what's that? [PDF]

open access: yes, 2009
Engineering the Future (EtF) aims to develop a sustainable model of activities and interactions among researchers, policy makers and practitioners that develops pupils’ understanding of the nature of engineering, embeds experiences of engineering within ...
Ekevall, E.   +5 more
core  

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