Results 31 to 40 of about 882,221 (292)

Prediction of forbidden ultraviolet and visible emissions in comet 67P/Churyumov-Gerasimenko

open access: yes, 2015
Remote observation of spectroscopic emissions is a potential tool for the identification and quantification of various species in comets. CO Cameron band (to trace \cod) and atomic oxygen emissions (to trace H$_2$O and/or CO$_2$, CO) have been used to ...
Bhardwaj, Anil   +2 more
core   +1 more source

Efficient Photoionization-Loading of Trapped Cadmium Ions with Ultrafast Pulses [PDF]

open access: yes, 2006
Atomic cadmium ions are loaded into radiofrequency ion traps by photoionization of atoms in a cadmium vapor with ultrafast laser pulses. The photoionization is driven through an intermediate atomic resonance with a frequency-quadrupled mode-locked Ti ...
B. B. Blinov   +29 more
core   +2 more sources

Effect of Gd addition on microstructure and corrosion behaviors of Mg–Zn–Y alloy

open access: yesJournal of Magnesium and Alloys, 2016
The Mg97-xZn1Y2Gdx alloys were prepared by as-casting method. Corrosion performance of alloys was evaluated by using potentiodynamic polarization, hydrogen evolution rate and mass loss measurements in 3% sodium chloride solution at room temperature.
Jinyang Zhang   +3 more
doaj   +1 more source

Seeing spin dynamics in atomic gases

open access: yes, 2014
The dynamics of internal spin, electronic orbital, and nuclear motion states of atoms and molecules have preoccupied the atomic and molecular physics community for decades.
Stamper-Kurn, Dan M.
core   +1 more source

Atomic Volume Curves of the Elements [PDF]

open access: yesNature, 1914
IN his interesting review of Prof. Letts's book on Some Fundamental Problems of Chemistry, in NATURE of May 21, Prof. Meldola states that an atomic volume curve which includes the inert elements is there published for the first time.
openaire   +2 more sources

Atomic Volumes of Carbon and Hydrogen [PDF]

open access: yesNature, 1926
PROF. INGOLD has introduced an important modification of Baeyer's strain theory, which brings the calculated ring strains into closer agreement with the thermal data of the cycloparaffins and with the general chemistry of the formation and decomposition of this series of saturated hydrocarbons (Trans. Chem. Soc., 119, 305, 1921).
openaire   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Ab initio study of the volume dependence of dynamical and thermodynamical properties of silicon

open access: yes, 1995
Motivated by the negative thermal expansion observed for silicon between 20 K and 120 K, we present first an ab initio study of the volume dependence of interatomic force constants, phonon frequencies of TA(X) and TA(L) modes, and of the associated mode ...
A. Fleszar   +38 more
core   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

Investigating the magnetovolume effect in isotropic body-centered-cubic iron using spin-lattice dynamics simulations

open access: yesAIP Advances, 2014
The understanding of the magnetovolume effect lacks explicit consideration of spin-lattice coupling at the atomic level, despite abundant theoretical and experimental studies throughout the years.
C. P. Chui, Yan Zhou
doaj   +1 more source

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