PALAVRAS EM INGLÊS RELACIONADAS COM «PARAHYDROGEN»
parahydrogen
generator
induced
polarization
wiki
molecular
hydrogen
occurs
isomeric
forms
with
proton
spins
aligned
parallel
other
antiparallel
room
temperature
thermal
equilibrium
consists
approximately
orthohydrogen
parahydrogen
university
york
homepage
research
group
comes
nuclear
spin
isomers
electronic
wave
functions
must
both
tweezers
metal
probe
nonequilibrium
shown
that
ansa
aminoborane
qcat
provided
fold
signal
enhancements
originating
hydrogens
california
berkeley
thomas
theis
physics
para
phenomenon
used
overview
supporting
bruker
instrument
designed
enrich
content
normal
patent
method
producing
apparatus
includes
container
holding
water
least
pair
closely
spaced
improving
sensitivity
curr
chem
duckett
mewis
wiktionary
uncountable
form
molecule
which
nuclei
10 LIVROS EM INGLÊS RELACIONADOS COM «PARAHYDROGEN»
Descubra o uso de
parahydrogen na seguinte seleção bibliográfica. Livros relacionados com
parahydrogen e pequenos extratos deles para contextualizar o seu uso na literatura.
1
World Congress on Medical Physics and Biomedical Engineering ...
Vol. 25/VII Diagnostic and Therapeutic Instrumentation, Clinical Engineering Olaf
Dössel, Wolfgang C. Schlegel. Development of MR active contrast agents via
Parahydrogen Induced Polarization K. Münnemann1,2, M. Roth2, F. Dechent1,2,
...
Olaf Dössel, Wolfgang C. Schlegel, 2010
2
Safety in the Handling of Cryogenic Fluids
Equilibrium between Orthohydrogen and Parahydrogen A property of hydrogen
that can influence a number of its other properties, such as specific heat and
thermal conductivity, is the existence of the two forms of hydrogen, orthohydrogen
...
Frederick J. Edeskuty, Walter F. Stewart, 1996
3
Thermodynamic and Related Properties of
Parahydrogen from ...
[4] as represented by the surface given in ref. [3]; A-lZOK,CI-200K,0300K . . . . . . ...
..24 Density differences between normal and parahydrogen at a given
temperature and pressure . . 25 Comparison of enthalpy with values calculated
by Michels ...
4
In Situ NMR Methods in Catalysis
out the whole experiment (PASADENA condition; PASADENA: Parahydrogen
And Synthesis Allow Dramatically Enhanced Nuclear Alignment) leading to
characteristic antiphase patterns ofthepolarization signals obtained. Due to the ...
Joachim Bargon, Lars T. Kuhn, 2007
5
Literature Survey of Orthohydrogen and
Parahydrogen Research
A survey of the technical literature pertaining to ortho hydrogen and parahydrogen is presented.
P. L. Barrick, L. F. Brown, COLORADO UNIV BOULDER., 1964
6
Fundamental Equations of State for
Parahydrogen, Normal ...
All three equations of state have the same maximum pressure of 2000 MPa and temperature of 1000 K. The uncertainty in density is 0.04% in the region between 250 and 450 K at and pressures from 0.1-300 MPa.
have given a clean surface which could chemisorb hydrogen and convert
parahydrogen by the mechanism below. Turkevich and Selwood (68) have
examined the conversion on the solid free radical a, é-diphenyl-B-picryl hydrazyl.
W. G. Frankenburg, Vasili Ilyich Komarewsky, Sir Eric Keightley Rideal, 1948
8
Hydrogen Aircraft Technology
If parahydrogen was used, a (|> of 1 1 or 12 would be required for air liquefaction
instead of the (t> = 8 which is represented. The heat sink capacity of subcooled
hydrogen is shown in Figure 5-9 for two levels of pressure. As shown, a major ...
9
Frontiers of Laser Physics and Quantum Optics: Proceedings ...
The parahydrogen was obtained in liquid phase by converting normal hydrogen
using catalyst; the purity of parahydrogen was estimated to be greater than 99.9
%. The crystal was grown at a temperature of 15 K under a pressure of 30 atm.
10
Rocket Propulsion Elements
Liquid hydrogen has two isomers, namely, orthohydrogenand parahydrogen,
which differ intheorientation of their nuclearspin state.As hydrogen isliquefied
and cooled to lowerand lower temperatures, therelative equilibrium composition
of ...
George P. Sutton, Oscar Biblarz, 2011
10 NOTÍCIAS NAS QUAIS SE INCLUI O TERMO «PARAHYDROGEN»
Conheça de que se fala nos meios de comunicação nacionais e internacionais e como se utiliza o termo
parahydrogen no contexto das seguintes notícias.
Raman scattering of hydrogen produces ultrashort-pulse light
"Our recent experiments on adiabatic stimulated Raman scattering in parahydrogen show potential for the realization of laser light sources ... «Laser Focus world, jun 14»
Vive la Différence!
Although magnetically silent and thus invisible to NMR, parahydrogen can enhance the sensitivity of NMR and in vivo MRI. This is due to the ... «Physics, fev 14»
Welcome Additions
He uses a research technique — which he integrates into his teaching — known as parahydrogen-induced polarization to study how hydrogen ... «Boston College Chronicle, dez 13»
chemists use MRI to peek at temperatures of gases inside catalytic …
The researchers also demonstrated microscale MRI images in a micro-reactor using parahydrogen, a state of the hydrogen molecule in which ... «UC Los Angeles, out 13»
Plastic Quantum Crystals
B 86, 064524 (2012); L. A. Alekseeva and I. N. Krupskii, “Low Temperature Plasticity of Pure Parahydrogen,” Phys. Solid State 49, 2104 (2007) ... «Physics, jan 13»
Brain imaging: fMRI 2.0
Gary Green, director of the York Neuroimaging Centre at the University of York, UK, is working with parahydrogen, a 'hyperpolarized' molecule ... «Nature.com, abr 12»
For MRI, time is of the essence
Because parahydrogen has nuclei spinning in opposing directions — both with and against the larger magnetic field of the imager — its two ... «Scienceline, jun 11»
High-Resolution NMR Without Any Magnets
While the phenomenon of parahydrogen-induced polarization has been known for some time, the current work is the first to successfully use it ... «Medgadget.com, jun 11»
Nuclear magnetic resonance with no magnets
One way to hyperpolarize a sample of hydrogen gas is to change the proportions of parahydrogen and orthohydrogen in it. Like most gases, at ... «Eureka! Science News, mai 11»
Nanoporous quantum filters - inside the fascinating and weird world …
By using CNTs as nanoporous molecular sieves, the separation of parahydrogen molecules from mixtures of classical particles at cryogenic ... «Nanowerk LLC, abr 11»
