Risultati di ricerca
5 giorni fa · The diagram below illustrates two coupling patterns: a triplet of doublets (td) and a doublet of triplets (dt). The J coupling constants for both multiplets are measured at 3.2 and 8.3 Hz. The difference is the left multiplet (td) exhibits two couplings of 8.3 Hz and one of 3.2 Hz and the right multiplet (dt) exhibits one coupling of ...
2 giorni fa · However, strong coupling simultaneously involving Fabry-P\'erot (FP) cavity modes, anapole states, and excitons has not been thoroughly explored. In this work, we numerically present the strong coupling of a FP cavity-anapole-exciton supported by a nano-optical metasurface of bulk $\mathrm{W}{\mathrm{S}}_{2}$-Si heterogeneous nanodisks inserted into a FP optical cavity.
1 giorno fa · The key to studying the coupling mechanism between enzymatic activity and channel gating of chanzymes is to capture the structures of all intermediate states in the catalytic and gating cycles.
2 giorni fa · The impact of exciton-vibrational (EV) coupling involving low-energy (“slow”) intermolecular vibrations and higher-energy (“fast”) intramolecular vibrations on the absorption and emission spectra of H- and J-dimers is studied theoretically for a pair of chromophores with excitonic coupling dominated by transition dipole–dipole coupling, JC. Exact quantum-mechanical solutions based on ...
1 giorno fa · Although cyano groups are easily introduced into target molecules by the formation of C–CN, the coupling of CN to nitrogen is more challenging because of the high electronegativity of that element. We have developed an efficient one-pot two-step method of preparing alkylated N -acyl cyanamides and cyanoformamides through a nitrogen-umpolung strategy.
1 giorno fa · Abstract. The space manipulator can assist astronauts to accomplish space activities, including docking, fixing, and grasping. It is subjected to thermal radiation and produces thermal deformation during orbit operation, which makes the operation of the space manipulator deviate from the predetermined trajectory and further affects its positioning accuracy. Therefore, to solve the problem of ...
1 giorno fa · While several neurovascular coupling pathways have been identified and studied, there is still no consensus on the vascular signal transduction and transmission mechanisms that enable acute responses to vasoactive substances released by active neurons. Arteriolar diameter is viewed as a crucial control point for neurovascular coupling.
