نتایج جستجو برای: cone interconversion
تعداد نتایج: 44171 فیلتر نتایج به سال:
A novel structural interconversion unit based on intramolecular boroxine formation has been developed. The of a macrocyclic triboronic acid (blue Japanese umbrella) and tricyclic (green pinwheel) can be triggered by water or temperature. These unique interconversions are attributed to the entropic advantage formation. More information found in Research Article K. Ono co-workers (DOI: 10.1002/ch...
Some unnatural polymers/oligomers have been designed to adopt a well-defined, compact, three-dimensional folding capability. Azobenzene units are common linkages in these oligomer designs. Two alternating pyridinedicarboxamide/m-(phenylazo)azobenzene oligomers that can fold into both right- and left-handed helices were studied computationally in order to understand their dynamical properties. H...
Variable-temperature NMR experiments and ab initio density functional calculations were carried out to investigate the conformation interconversion of novel chiral 3-alkyl-3,4-dihydro-2H-benzo[1,4]oxazine derivatives. With CDCl3 as the solvent, the coalescence temperatures of H2, H3, H11, and H19 of product 1 are about 289, 304, 292, and 316 K, with the corresponding activation free energies at...
The recent challenges for improving the operation speed of nanoelectronics have motivated research on manipulating light in on-chip integrated circuits. Hybrid plasmonic waveguides with low-dimensional semiconductors, including quantum dots and quantum wells, are a promising platform for realizing sub-diffraction limited optical components. Meanwhile, two-dimensional transition metal dichalcoge...
Included among the five established determinants of virulence in Pasteurella pestis are the abilities of cells to accomplish the de novo biosynthesis of purines and to grow as dark pigmented (P(+)) colonies on a solid synthetic medium containing hemin. P(+) isolates of P. pestis strain KIM-10 (mouse intraperitoneal ld(50) < 10 cells) failed to convert exogenous guanine-8-(14)C to adenine residu...
in this paper, we prove the existence of fixed point for chatterjea type mappings under $c$-distance in cone metric spaces endowed with a graph. the main results extend, generalized and unified some fixed point theorems on $c$-distance in metric and cone metric spaces.
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