Results 71 to 80 of about 731,514 (328)
Atom Indonesia, 2019 Given the facts that Indonesia has suitable environment condition to survival, reproduction and development of the principal mosquito vector for dengue virus, Aedes aegypti, the transmission of dengue virus does routinely occur every year.
B. Ernawan +3 more
doaj +1 more source
Discovery of the Tungsten Isotopes [PDF]
Atom.Data Nucl.Data Tabl.96:315,2010, 2009 Thirty-five tungsten isotopes have so far been observed; the discovery of these isotopes is discussed. For each isotope a brief summary of the first refereed publication, including the production and identification method, is presented.
arxiv +1 more source
Quantum Phase Transition in the Shape of Zr isotopes. [PDF]
Physical Review Letters, 2016 The rapid shape change in Zr isotopes near neutron number N=60 is identified to be caused by type II shell evolution associated with massive proton excitations to its 0g_{9/2} orbit, and is shown to be a quantum phase transition.
T. Togashi +3 more
semanticscholar +1 more source
Low‐Loss Far‐Infrared Surface Phonon Polaritons in Suspended SrTiO3 Nanomembranes
Advanced Functional Materials, EarlyView.The low‐loss, highly confined, and thickness‐tunable surface phonon polaritons are demonstrated in the far‐infrared regime within transferable freestanding SrTiO3 membranes, achieving high figures of merit comparable to the previous record values from the vdW materials.
Konnor Koons +8 more
wiley +1 more source
Magnetic Isotope Effect in the Uranium Isotopes Separation [PDF]
arXiv, 2018 When uranyl nitrate is photolysed in the water solution, light isotope ${}^{235}{\rm U}$ is separated from isotope ${}^{238}{\rm U}$ ; an enrichment factor $K = 1.04$ . The initial samples were depleted by a light isotope of uranium ${}^{235}{\rm U}$ (degree $\beta = 0.00455$). Regenerated uranyl nitrate was enriched by an isotope of uranium ${}^{235}{\
arxiv
Spatial distribution of isotopes and compositional mixing in the inner protoplanetary disk [PDF]
A&A 673, A5 (2023)The mass-independent isotopic signatures of planetary bodies have been widely used to trace the mixing and transport processes in planet formation. The observed isotopic variations among meteorites have been further linked to the modeled mass-weighted mean initial semimajor axes, assuming a spatial isotopic gradient in the inner protoplanetary disk ...
arxiv +1 more source
Galactic Evolution of Silicon Isotopes: Application to Presolar SiC Grains From Meteorites [PDF]
, 1996 We calculate and discuss the chemical evolution of the isotopic silicon abundances in the interstellar medium at distances and times appropriate to the birth of the solar system. This has several objectives, some of which are related to anomalous silicon isotope ratios within presolar grains extracted from meteorites; namely: (1) What is the relative ...
arxiv +1 more source
Advanced Functional Materials, EarlyView.This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann +4 more
wiley +1 more source
Nature CommunicationsSelective extracting uranium from seawater is quite challenging, particularly the presence of vanadium, which poses a significant obstacle for most amidoxime absorbents.
Pengcheng Zhang +10 more
doaj +1 more source
Theoretical Evaluation of Intermolecular and Intramolecular Isotope Fractionations in Fragmentation [PDF]
arXiv, 2017 Revelation of the effects of isotope fractionation during fragmentation in electron ionization mass spectrometry (EI-MS) on compound-specific isotope analysis of chlorine and bromine (CSIA-Cl/Br) may be of crucial significance, yet a theoretical basis for elucidating the effects is absent. This study provides a solid theoretical deduction regarding the
arxiv