1.4.1 Unstable nuclei Figure 1.2 gives the combinations of protons and neutrons that are found to be stable nuclei. This information may also be presented as an area of stability, Fig 1.4. Nuclei lying outside this area may be regarded as having the wrong combination of protons and neutrons...
How can someone tell how stable or unstable an element is if all we know is where that element is placed on the periodic table? Periodic table of the elements: The periodic table of the elements is a structural form of displaying all ...
The unstable periodic orbit (UPO) in chaotic "sea" was located by variational method and the corresponding stable manifold (SM) and unstable manifold (UM) of the UPO were numerically calculated. It was shown that the dynamics of ionization of the one electron...
However, their effectiveness is hindered by low efficiency and unstable cyclic performance. Here we introduce an amine-support system designed to achieve efficient and stable CO2 capture. Through atom-level design, each polyethyleneimine (PEI) molecule is precisely impregnated into the cage-like pore ...
This was quite unexpected as this molecule is highly unstable at ambient conditions26. Its synthesis requires the use of high-energy radiation or strong acids and the resulting compound can only be isolated under high vacuum or in argon matrix and at very low temperatures27,28. Indeed, the ...
In principle, the reaction of IaH with a given A could proceed by an initial ET,(Equation 3)N-DMBI-H + A → N-DMBI-H⋅+ + A⋅−followed by further reaction of IaH⋅+ (clearly unstable from the irreversible cyclic voltammogram of IaH29) to form Ia+. E0/⋅−(A) values ...
The poor conductivity, sluggish reaction kinetics, and unstable crystal structure of cathode materials have impeded their electrochemical performance. Here, controlled intercalation of TiSe2 with Cu is used to yield a layered superconductor Cu0.11TiSe2, which exhibits increased electrons and ions transfer...
Figure S4 shows that the states in O atoms of DIT are highly unstable near the Fermi level before adsorbing Li2S6. After the adsorption of Li2S6, the interaction between O and Li atoms leads to a downward shift of the energy levels and stabilizes the system [42]. Furthermore, the ...
finds a consistently larger spread of the error (Fig.4d). Thus, the invariant model performs particularly well (and even better than the equivariant model) on certain conformations which comes at the price of worse performance for other conformations, a fact which is invisible to per-atom ...
less well-defined grain boundaries due to the existence of a certain quantity of a glassy phase (5–50 vol%), which can mitigate the dendrite formation and growth. It turns out, however, that when these SEs come into contact with Na metal, they break down into an unstable solid ...