‘Alexandrian’ glass confirmed by hafnium isotopes
نویسندگان
چکیده
منابع مشابه
Limit to high-spin isomerism in hafnium isotopes
Configuration-constrained nuclear shape calculations are used to show that reinforcing neutron and proton orbital structures create exceptional conditions for the formation of multiquasiparticle isomers in neutron-rich hafnium isotopes, with axially symmetric, prolate shapes. Highly excited, long-lived states are predicted. However, at angular momenta close to 40\ , orbital alignment effects fo...
متن کاملThe Alexandrian Library of Life
In the last quarter-century many scientific, environmental, and popular publications have used a metaphor comparing species extinction and the loss of biodiversity in the modern era to the destruction of the ancient Library of Alexandria in Egypt more than 1,500 years ago. The rhetorical figure is characteristic of the environmental humanities, for it invokes the value of cultural and literary ...
متن کاملThe Alexandrian Library of Life
In the last quarter-century many scientific, environmental, and popular publications have used a metaphor comparing species extinction and the loss of biodiversity in the modern era to the destruction of the ancient Library of Alexandria in Egypt more than 1,500 years ago. The rhetorical figure is characteristic of the environmental humanities, for it invokes the value of cultural and literary ...
متن کاملThe Alexandrian Library of Life
In the last quarter-century many scientific, environmental, and popular publications have used a metaphor comparing species extinction and the loss of biodiversity in the modern era to the destruction of the ancient Library of Alexandria in Egypt more than 1,500 years ago. The rhetorical figure is characteristic of the environmental humanities, for it invokes the value of cultural and literary ...
متن کاملOxidation of Hafnium and Diffusion of Hafnium Atoms in Hexagonal Close-Packed Hafnium; Microscopic Investigations by Perturbed Angular Correlations
Time-differential perturbed angular correlation (TDPAC) studies in hafnium metal (∼ 5%Zr) have been carried out at different temperatures. It is found that hafnium metal on heating at 873 K continuously for two days in air, transforms partially and abruptly to HfO2 while no component of oxide has been observed for heating up to 773 K and during initial heating at 873 K for 1 day. This result is...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2020
ISSN: 2045-2322
DOI: 10.1038/s41598-020-68089-w