Results 21 to 30 of about 2,244,832 (340)

Digital radiography image quality evaluation using various phantoms and software

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To investigate the effect of the exposure parameters on image quality (IQ) metrics of phantom images, obtained automatically using software or from visual evaluation. Methods Three commercial phantoms and a homemade phantom constructed according to the instructions given in the IAEA Human Health Series No.
Ioannis A. Tsalafoutas, Shady AlKhazzam, Virginia Tsapaki, Huda AlNaemi, Mohammed Hassan Kharita   +4 more
wiley   +1 more source

Universal control induced by noise [PDF]

Physical Review A, 2016
On the basis of the quantum Zeno effect it has been recently shown [D. K. Burgarth et al., Nat. Commun. 5, 5173 (2014)] that a strong amplitude damping process applied locally on a part of a quantum system can have a beneficial effect on the dynamics of the remaining part of the system.
Arenz, Christian, Burgarth, Daniel, Facchi, Paolo, Giovannetti, Vittorio, Nakazato, Hiromichi, Pascazio, Saverio, Yuasa, Kazuya   +6 more
openaire   +4 more sources

Driving Behavior and Decision Mechanisms in Emergency Conditions

World Electric Vehicle Journal, 2022
In this article we used simulator experiments to explore the intelligent mechanisms of human decision-making. Three types of typical emergency scenarios were used in the experiment, in which Scenario 1 was used to analyze the driver’s choice to protect ...
Ying Lyu, Yiteng Sun, Tianyao Zhang, Debao Kong, Zheng Lv, Yujie Liu, Zhenhai Gao   +6 more
doaj   +1 more source

Room Acoustical Parameters as Predictors of Acoustic Comfort in Outdoor Spaces of Housing Complexes

Frontiers in Psychology, 2020
Room acoustical parameters have frequently been used to evaluate or predict the acoustical performance in rooms. For housing complexes in urban areas with high population density, it is important to improve acoustic performance not solely indoors, but ...
Armin Taghipour, Sahand Athari, Arnthrudur Gisladottir, Arnthrudur Gisladottir, Tessa Sievers, Tessa Sievers, Kurt Eggenschwiler   +6 more
doaj   +1 more source

Quantum Control Noise Spectroscopy with Optimal Suppression of Dephasing [PDF]

, 2022
We extend quantum noise spectroscopy (QNS) of amplitude control noise to settings where dephasing noise or detuning errors make significant contributions to qubit dynamics. Previous approaches to characterize amplitude noise are limited by their vulnerability to low-frequency dephasing noise and static detuning errors, which can overwhelm the target ...
arxiv   +1 more source

Genetic noise control via protein oligomerization [PDF]

, 2008
Gene expression in a cell entails random reaction events occurring over disparate time scales. Thus, molecular noise that often results in phenotypic and population-dynamic consequences sets a fundamental limit to biochemical signaling.
A Arkin, A Barabasi, A Gilman, A Goldbeter, A Hernday, A Ujvari, B Alberts, B Chen, B Kim, B Lewin, B Müller-Hill, C Berger, C Herman, C Huang, C Tan, Cheol-Min Ghim, D Beckett, D Gillespie, D Hawley, D Hawley, D Rentzeperis, D Rozanov, D Thieffry, E Kussel, E Levine, Eivind Almaas, F Ramirez, F Sauer, G Ackers, H Kobayashi, I Ispolatov, J Kohler, J Little, J McDermott, J Newman, J Pedraza, J Raser, J Vilar, M Gibson, M Ptashne, M Shea, M Thattai, M Thattai, N Buchler, N Nelson, N Rosenfeld, P Guptasarma, P Warren, PL deHaseth, R Bundschuh, R Losick, R Sauer, S Macnamara, S Ramsey, S Semsey, T Alarcón, T Gardner, T Tian, T Tian, T Yi, WH Press   +60 more
core   +4 more sources

Control of Environmental Noise [PDF]

Journal of the Air Pollution Control Association, 1973
The article reviews the current state of knowledge of noise and how people respond to noise. Sources of community noise are discussed and existing federal legislation pertaining to noise is mentioned. Methods of reducing the noise impact on communities from aircraft, surface transportation, and industrial sites are presented. Interior noise in industry,
openaire   +3 more sources

Tacticity in chiral phononic crystals

Nature Communications, 2019
Here, the authors study the influence of tacticity on the dynamic behaviour of chiral structured periodic media comprising rotational inertia elements. This opens the way towards new mechanisms for wave control by exploiting spin-spin coupling mechanism.
A. Bergamini, M. Miniaci, T. Delpero, D. Tallarico, B. Van Damme, G. Hannema, I. Leibacher, A. Zemp   +7 more
doaj   +1 more source

Respirable stone particles differ in their ability to induce cytotoxicity and pro-inflammatory responses in cell models of the human airways

Particle and Fibre Toxicology, 2021
Background Respirable stone- and mineral particles may be a major constituent in occupational and ambient air pollution and represent a possible health hazard.
Vegard Sæter Grytting, Magne Refsnes, Johan Øvrevik, Marit Sigrid Halle, Jasmin Schönenberger, Roelant van der Lelij, Brynhild Snilsberg, Tonje Skuland, Richard Blom, Marit Låg   +9 more
doaj   +1 more source

Potential role of polycyclic aromatic hydrocarbons as mediators of cardiovascular effects from combustion particles

Environmental Health, 2019
Air pollution is the most important environmental risk factor for disease and premature death, and exposure to combustion particles from vehicles is a major contributor.
Jørn A. Holme, Bendik C. Brinchmann, Magne Refsnes, Marit Låg, Johan Øvrevik   +4 more
doaj   +1 more source