Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Weston L Tew"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-17 (2023)
Abstract Advances in instrumentation and tracer materials are still required to enable sensitive, accurate, and localized in situ 3D temperature monitoring by magnetic particle imaging (MPI). We have developed a high-resolution magnetic particle imag
Externí odkaz:
https://doaj.org/article/d5beea83f346441b9d372385501ec61f
Autor:
Thinh Q. Bui, Adam J. Biacchi, Cindi L. Dennis, Weston L. Tew, Angela R. Hight Walker, Solomon I. Woods
Publikováno v:
Appl Phys Lett
Characterization of the magnetization dynamics of single-domain magnetic nanoparticles (MNPs) is important for magnetic particle imaging (MPI), magnetic resonance imaging (MRI), and emerging medical diagnostic/therapeutic technologies. Depending on p
Autor:
Christof Gaiser, Bernd Fellmuth, Roberto M. Gavioso, Murat Kalemci, Vladimir Kytin, Tohru Nakano, Anatolii Pokhodun, Patrick M. C. Rourke, Richard Rusby, Fernando Sparasci, Peter P. M. Steur, Weston L. Tew, Robin Underwood, Rod White, Inseok Yang, Jintao Zhang
Publikováno v:
Journal of Physical and Chemical Reference Data. 51:043105
In 2011, a working group of the Consultative Committee for Thermometry published their best estimates of the differences between the thermodynamic temperature T and its approximation ( T90), the temperature according to the International Temperature
Autor:
Weston L. Tew, Jifeng Qu, Rod White, Kevin J. Coakley, Kunli Zhou, Samuel P. Benz, Zhenyu Zhou, Horst Rogalla
Publikováno v:
Metrologia. 54:549-558
Recent measurements using acoustic gas thermometry have determined the value of the Boltzmann constant, k, with a relative uncertainty less than 1 × 10−6. These results have been supported by a measurement with a relative uncertainty of 1.9 × 10
Publikováno v:
J Appl Phys
Magnetic nanoparticle (MNP) thermometry based on magnetic particle spectroscopy (MPS) is explored as a potential approach for realizing in-situ temperature measurement of 3D objects. MNP thermometry relies on the nonlinear magnetization response to a
Autor:
Kevin J. Coakley, Alessio Pollarolo, Nathan E. Flowers-Jacobs, Horst Rogalla, Anna E. Fox, Weston L. Tew, Samuel P. Benz, Adam C. Weis
Publikováno v:
J Res Natl Inst Stand Technol
In preparation for the redefinition of the International System of Units (SI), five different electronic measurements of the Boltzmann constant have been performed using different Johnson noise thermometry (JNT) systems over the past seven years. In
Publikováno v:
International Journal of Thermophysics. 36:2036-2059
The worldwide history and present state of development of rhodium–iron resistance thermometers (RIRTs) is briefly reviewed. A standardized interpolation method using RIRTs with the nominal composition of 0.5 % Fe (by mole) is presented, with exampl
Autor:
Andrea Peruzzi, Jan van Geel, F. Sparasci, Tohru Nakano, Peter P. M. Steur, F. Pavese, Kenneth D. Hill, Leszek Lipinski, A. Szmyrka-Grzebyk, Keisuke Nagao, Bernd Fellmuth, Osamu Tamura, Y. Hermier, Weston L. Tew, S. Valkiers, Jin Seog Kim
Publikováno v:
Metrologia. 52:104-110
The neon triple point is one of the defining fixed points of the International Temperature Scale of 1990 (ITS-90). Although recognizing that natural neon is a mixture of isotopes, the ITS-90 definition only states that the neon should be of ?natural
Autor:
Sarah L. Bromley, Weston L. Tew, Eric Oelker, Jun Ye, Dhruv Kedar, Colin Kennedy, Tobias Bothwell, John Robinson
Publikováno v:
Metrologia, 2019, Vol.56(6), pp.065004 [Peer Reviewed Journal]
We report on an improved systematic evaluation of the JILA SrI optical lattice clock, achieving a nearly identical systematic uncertainty compared to the previous strontium accuracy record set by the JILA SrII optical lattice clock (OLC) at $2.1 \tim
Publikováno v:
Measurement Science and Technology. 30:112001