CHE SIGNIFICA DEUTERIUM IN INGLESE
Deuterio
Il deutero è uno dei due isotopi stabili dell'idrogeno. Ha un'abbondanza naturale negli oceani della Terra di circa un atomo in 6.420 di idrogeno. Quindi il deutero rappresenta circa lo 0,015% di tutto l'idrogeno naturale negli oceani, mentre l'isotopo più comune rappresenta più del 99,98%. L'abbondanza di deuterio cambia leggermente da un tipo di acqua naturale all'altra. Il nucleo del deuterio, chiamato deuterone, contiene un protone e un neutrone, mentre l'isotopo di idrogeno molto più comune, protium, non ha neutroni nel nucleo. Il nome dell'isotopo deuterio è formato dal greco deuteros che significa "secondo", per indicare le due particelle che compongono il nucleo. Deuterium è stato scoperto e nominato nel 1931 da Harold Urey, conquistando un premio Nobel nel 1934. Questo ha seguito la scoperta del neutrone nel 1932, che ha reso evidente la struttura nucleare del deuterio. Poco dopo la scoperta del deuterio, Urey e altri produssero campioni di "acqua pesante" in cui il deuterio è stato altamente concentrato rispetto al prozio.
definizione di deuterium nel dizionario inglese
La definizione di deuterio nel dizionario è un isotopo stabile dell'idrogeno, presente nell'idrogeno naturale e nell'acqua pesante: utilizzato come tracciante in chimica e biologia. Simbolo: D o ²H; numero atomico: 1; atomico: 2,014; punto di ebollizione: -249,7 ° C.
PAROLE IN INGLESE ASSOCIATE CON «DEUTERIUM»
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CITAZIONI IN INGLESE CON «DEUTERIUM»
Citazioni e frasi famose con la parola
deuterium.
Watching cold fusion is like watching water boil in slow motion. First, sufficient deuterium has to penetrate the palladium electrode. This can take a few weeks. Then, if excess heat is generated during the next month or two, accurate temperature readings require extreme precautions to exclude environmental effects.
10 LIBRI IN INGLESE ASSOCIATI CON «DEUTERIUM»
Scopri l'uso di
deuterium nella seguente selezione bibliografica. Libri associati con
deuterium e piccoli estratti per contestualizzare il loro uso nella letteratura.
1
Defeating Cancer!: The Biological Effect of
Deuterium Depletion
This book gives an account of experiments carried out using deuterium-depleted water and of the human clinical trials underway in Hungary.
2
Fusion: The Energy of the Universe
Adequate sources of deuterium and tritium are thus important, independent of
what type of confinement system, magnetic or inertial, is employed. One gram of
deuterium will produce 300 GJ of electricity, and providing for all of the world's ...
G. M. McCracken, Peter E. Stott,
2005
3
Fundamentals of Protein NMR Spectroscopy
Changes in the magnetic field strength are detected by measuring the position of
a deuterium resonance from the sample. Hence, it is usually necessary to include
a deuterated 'lock-solvent' in the sample. A buffered solution of 95% H20/5% ...
Gordon S. Rule, T. Kevin Hitchens,
2006
4
Dielectrics for Nanosystems: Materials Science, Processing, ...
HYDROGEN/DEUTERIUM IMPLANTATION FOR SI-DIELECTRIC INTERFACE IN
NANOSCALE DEVICES T. Kundu and D. Misra Electrical and Computer
Engineering Department New Jersey Institute of Technology, Newark, NJ 07102
...
Rajendra Singh, Electrochemical Society. Dielectric Science and Technology Division,
2004
5
Drug Metabolism: Chemical and Enzymatic Aspects
Because of the twofold difference in mass between deuterium and hydrogen, it is
generally more difficult to break a carbon–deuterium bond than it is to break the
corresponding carbon–hydrogen bond. This is because the greater the mass of ...
Jack P. Uetrecht, William Trager,
2007
From the ratio of line intensities in ordinary and deuterated hydrocyanic acid, the
Bell Labs, group derive a ratio of deuterium to hydrogen of 6 x 10~3. This
remarkably high value (some 40 times greater than that pertaining in the Earth's ...
7
The Formation and Early Evolution of Stars: From Dust to ...
at its center setting off the process of sustained fusion of deuterium. The quantity
of the mass accretion rate is therefore not only important for the star's final mass,
it also determines the supply of deuterium to the hydrostatic core which leads to ...
8
Modern Techniques in Protein NMR: Volume 16: Modern ...
To this point we have introduced the use of deuterium as an approach to improve
the efficacy of large classes of triple- resonance experiments thai would
otherwise su1fer significantly from relaxation loses. Outside of the low
gyromagnetic ...
N. Rama Krishna, Lawrence Berliner,
1998
9
Hydrogen/
deuterium Exchange Mass Spectrometry Reveals the ...
The back-exchange correction is only necessary when one wishes to know the
exact number of deuterium atoms in a given protein or peptide fragment. In many
cases where biological functional information is being probed, the actual number
...
10
Astrophysical Concepts: 3rd edition
It therefore has a somewhat different value for normal hydrogen, which has only a
proton in its nucleus, and for deuterium which has a nucleus composed of a
neutron and a proton. The extra neutron in deuterium makes the nucleus about ...
10 NOTIZIE DOVE SI INCLUDE IL TERMINE «DEUTERIUM»
Vedi di che si parla nei media nazionali e internazionali e come viene utilizzato il termine ino
deuterium nel contesto delle seguenti notizie.
Helion Energy takes in $10.6M for fusion energy | The Seattle Times
The helium, along with deuterium fuel from seawater, would be heated to become plasma and then compressed with magnetic fields to reach ... «The Seattle Times, lug 15»
Nuclear Medicine/Radiopharmaceuticals Market Worth $6.96 Billion …
... F-18)], [Beta/Alpha Radiation Therapy (I131, Y-90)], [Applications (Cancer/Oncology, Cardiac)] & (Deuterium, C-13) - Forecast to 2017. «PR Newswire, lug 15»
'Heroes of Telemark' dam is world heritage site - The Local
... when the Norwegian resistance movement sabotaged it to prevent the deuterium oxide, or 'heavy water', produced by the plant being used to ... «The Local.no, lug 15»
Getting the measure of Mars
The clues came thanks to Sam's TLS, which can measure the ratio of deuterium to hydrogen (D/H). 'Water released at lower temperatures came ... «Royal Society of Chemistry, lug 15»
When Soviets got the A-bomb, the US created the H-bomb
That January he realised that an atomic bomb, a "primary", could similarly squeeze and heat a physically separate container of deuterium, ... «The Australian Financial Review, lug 15»
Analyst Price Target Update on Concert Pharmaceuticals, Inc.
The Company tests and produces pharmaceutical drugs by utilizing the element deuterium. Its drug candidates address various therapeutic ... «The Daily Rover, lug 15»
Concert Pharmaceuticals' precision deuteration platform can …
Substituting deuterium for certain hydrogen atoms in molecules has been shown to enhance the metabolic properties of a number of drugs and ... «News-Medical.net, lug 15»
Going Nuclear: The Fusion Race Is Heating Up. Will Anyone Cross …
A single gram of a fusion fuel like deuterium oxide is potentially equivalent to 10 tons of coal, according to Helion. That's enough fuel to power a ... «Re/code, lug 15»
Simple reaction shows quantum interference
... Complutense University of Madrid in Spain, Zare and colleagues have now shown that the reaction of a hydrogen atom with a deuterium (D2) ... «Royal Society of Chemistry, lug 15»
Scientists Examine Anomaly of Saturn's Higher-Than-It-Should-Be …
Direct observation of an abrupt insulator-to-metal transition in dense liquid deuterium.” Knudson goes on to describe, “We started at 20 K, ... «Pioneer News, giu 15»