At the August 2013 Flash Memory Summit SK hynix announced that it would sample 3D NAND by the end of the year. (This post’s graphic shows side-by-side cross section illustrations of the SK hynix 3D NAND design and an electron micrograph of that device.) At about the same time, in a...
The periodic table, also called the periodic table of elements, is an organized arrangement of the 118 known chemical elements. The chemical elements are arranged from left to right and top to bottom in order of increasing atomic number, or the number of protons in anatom's nucleus, which ge...
In 1913 Bohr proposed hisquantized shell model of the atom to explain how electrons can have stable orbits around the nucleus. ... The energy of an electron depends on the size of the orbit and is lower for smaller orbits. Radiation can occur only when the electron jumps from one orbit t...
2D and DOSY NMR spectroscopies support the sandwiched binding mode based on 1:1 host-guest interactions. The binding constants (K(S)) of complex 1 for various PAHs were determined by NMR titration studies and the values were found to span up to an order of 10(4) M(-1) for coronene ...
the last centuries. They were determined not to repeat that mistake of the old European colonial powers when it came to decide on the legal status of the moon; at least the possibility of a "land grab" in outer space giving rise to another world war was to be avoided. By that token,...
A Swede who wrote a trilogy about collecting bugs, an Egyptian doctor who put pants on rats to study their sex lives and a British researcher who lived like an animal have been named winners of the Ig Nobels, the annual spoof prizes for quirky scientific
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and dissolving in nitric acid. Digestion in Aqua Regia was additionally carried out to detect the presence of rare and refractory elements. Weight loss after ignition at 1000 °C was carefully registered and determined the loss on ignition value. Due to their light weight, 10 samples were analyz...
likely to provide better protocol information or discussion of the mechanism than papers from less prestigious sources. Comments on possible reasons for this suboptimal reporting are offered. The use of a suitable information/feature checklist, following best practice in many leading chemical and ...