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isotopic
isotopic, a. (aɪsəˈtɒpɪk) [f. prec. + -ic.] a. Of, pertaining to, or being an isotope or isotopes of an element; isotopic number, the number of neutrons in a nucleus minus the number of protons. Before Soddy coined the word in 1913, isotopic had previously (unknown to him) been used in a different s...
Oxford English Dictionary
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Isotopic
Isotopic may refer to:
In the physical sciences, to do with chemical isotopes
In mathematics, to do with a relation called isotopy; see Isotopy (disambiguation )
In geometry, isotopic refers to facet-transitivity
wikipedia.org
en.wikipedia.org
A Lead Isotopic Standard for Instrument Calibration | NIST
2 days agoStandard Reference Material 3328 Lead (Pb) Isotopic Standard Solution. Stable isotope analysis is an important interdisciplinary tool used by numerous fields such as nuclear and homeland security, forensics, medicine and pharmaceuticals, human health and nutrition, and climate science. Achieving reliable metrology and traceability in isotope ...
www.nist.gov
Isotopic labeling
Isotopic tracer
An isotopic tracer, (also "isotopic marker" or "isotopic label"), is used in chemistry and biochemistry to help understand chemical reactions See also isotopic signature.
wikipedia.org
en.wikipedia.org
Is every diffeomorphism of the n-torus isotopic to a linear one? It is an easy fact that every diffeomorphism of the $n$-torus $\mathbb{T}^n$ is homotopic to a linear diffeomorphism. A classical theorem of low dimensi...
Yes for $n=3$. This is due to Waldhausen, who proved that the mapping class group of a closed aspherical oriented Haken 3-manifold is identified with $\text{Out}(\pi_1)$; in this case that is $GL_3 \Bbb Z$. There is a proof of Waldhausen's theorem in Hempel's book on 3-manifolds. Open for $n=4$. Map...
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Isotopic signature
An isotopic signature (also isotopic fingerprint) is a ratio of non-radiogenic 'stable isotopes', stable radiogenic isotopes, or unstable radioactive isotopes Addition of sugars originated from corn or sugar cane (C4 plants) skews the isotopic ratio of sugars present in honey, but does not influence the isotopic
wikipedia.org
en.wikipedia.org
Are slice disks with the same boundary isotopic? Given two smoothly properly embedded disks $f,g : D^2 \to D^4$ with $f|_{S^1} = g|_{S^1}$, does it follow that $f$ and $g$ are isotopic?
If this disk was isotopic to the flat disk, then it's easy to construct an isotopy from this 2-knot to the standard longitudinal $S^2$. field until the derivative approximates the embedding (so every embedding is isotopic to a flat disk.
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Isotopic shift
The isotopic shift (also called isotope shift) is the shift in various forms of spectroscopy that occurs when one nuclear isotope is replaced by another ratio of the square root of the isotopic masses.
wikipedia.org
en.wikipedia.org
Isotopy of links If a link $L$ has $\mu$ components $K_1,\ K_2,\ ... K_\mu$ and $L'$ has components $K'_1,\ K'_2,\ ... K'_\mu$ components, does "$L$ is isotopic to $L'$ " imply that "each $K_i$ is isotopic to $K'_{\si...
That is, $L$ and $L'$ are subsets of some manifold $M$; to say that $L$ is isotopic to $L'$ is to say that there is a homeomorphism $H$ of $M$ which is isotopic to the identity and which has $H(L) = L'$.
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Equivalence of links in $R^3$ or $S^3$ Definition 1. Two links are equivalent if they are ambient isotopic in $\mathbb{R^3}$. Definition 2. Two links are equivalent if they are ambient isotopic in ${S^3}$. Are these...
These definitions are the exact same, because generically an isotopy sweeps a (locally) $2$-dimensional locus, and in a three-dimensional space it can always be made to avoid a particular point. All you have to do is call that point $\infty$.
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Hf-W isotopic constraints on early evolution of the Earth
As one of the short-lived radioactive systems, Hf-W system can well constrain the accretion and differentiation processes in the evolution of the early Earth. Based on the review of Hf-W isotopic ...
www.researchgate.net
Isotopic geochronology and crustal evolution of Huangling metamorphic ...
Corpus ID: 222269444; Isotopic geochronology and crustal evolution of Huangling metamorphic terrain @inproceedings{Jisheng1986IsotopicGA, title={Isotopic geochronology and crustal evolution of Huangling metamorphic terrain}, author={Jiang Jisheng}, year={1986} }
www.semanticscholar.org
Carbon and oxygen isotopic constraints on paleoclimate and ...
We investigate the growth of the northern Tibetan Plateau and associated climate change by applying oxygen and carbon isotopic compositions in Cenozoic strata in the southwestern Qaidam basin. The X-ray diffraction and isotopic studies reveal that the carbonate minerals are mainly authigenic and they do not preserve any evidence for detrital carbonate and diagenesis.
geosciencefrontiers.com
geosciencefrontiers.com
Isotopic age spectrum of the Huangling granitic batholith,western Hubei ...
The Rb Sr isochron ages and zircon U Pb concordant ages for main rock suites of the Huangling granitic batholith have been recalculated with the Isoplot program (Ludwig,1994),and the intrusive ages have been measured of variant kinds of dikes in the batholith. A age spectrum of magmatic activity have been obtained: the emplacement ages of the Taipingxi tonalite,Huanglingmiao granodiorite and ...
www.semanticscholar.org
(PDF) In-situ microanalysis of Pb isotopic compositions ... - ResearchGate
The Huayangchuan ore belt is located in the western segment of Xiaoqinling Orogen in the southern margin of the North China Craton (NCC), and hosts voluminous magmatism and significant U−REE− ...
www.researchgate.net