Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Li Hui Guo"'
Autor:
李辉,郭霞凌 LI Hui, GUO Xialing
Publikováno v:
Zhongguo youzhi, Vol 47, Iss 4, Pp 125-132 (2022)
甾体激素类药物在医药工业中地位突出,是仅次于抗生素的第二大类化学药物。甾体激素类药物的合成往往依赖于AD、ADD、9α-OH-AD、4-BNA等关键中间体的高质量生产,工业微生物转化植物甾醇
Externí odkaz:
https://doaj.org/article/a0f1ec2601d848f6855ae81478c8763b
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 3, Pp o644-o644 (2010)
In the title compound, C26H18N4O6, the amide units are approximately coplanar with the benzene ring bonded to the N atom [dihedral angles of 10.59 (10) and 24.00 (12)°], but twisted significantly out of the plane of the benzene ring bonded to the ca
Externí odkaz:
https://doaj.org/article/40aa51f6162147d5804622f5553454ef
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 11, Pp o2104-o2104 (2008)
In the title compound, C28H24N2O4, the dihedral angle between the two rings of the biphenyl unit is 75.34 (9)°. The outer aromatic rings form dihedral angles of 66.96 (1) and 85.69 (8)° with the rings to which they are attached . The molecular stru
Externí odkaz:
https://doaj.org/article/4a1edff2d0a94a47aef6139bef30d39e
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 1, Pp o189-o189 (2008)
The cation of the title compound, C36H34N6O22+·2PF6−, lies across a crystallographic inversion centre. The imidazole and pyridine rings form dihedral angles of 82.28 (5)° and 11.87 (7)°, respectively, with the anthracene ring system. The crystal
Externí odkaz:
https://doaj.org/article/350861293bef4e19a7f6448c3e450088
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 173:6-12
The supramolecular interaction between the water-soluble pillar[5]arene (WP[5]) as host and dopamine hydrochloride (DH) as guest was studied by spectrofluorometry. The fluorescence intensity of DH gradually decreased with increasing WP[5] concentrati
Publikováno v:
Analytical and bioanalytical chemistry. 411(27)
A new fluorescence sensor (QDs-IIP), based on ion-imprinted polymers (IIP) as recognition element and Mn-doped ZnS quantum dots (QDs) as fluorophore, was synthesized for the selective and sensitive determination of hexavalent chromium (Cr(VI)) ions.
Publikováno v:
Chemical Physics Letters. 644:132-137
The DielsAlder (DA) covalent dimerization mechanisms of pyridine were studied at the MP2/6-311G(d,p) level. Involvement of N atom in DA reaction causes high barrier height, otherwise the barrier heights are low. The two most stable DI dimers forme
Autor:
Li Hui Guo, Bo Fang
Publikováno v:
Advanced Materials Research. 827:72-77
According to mathematical physics model of PV Cell, the simulation model of Si PV array as well as controller model of PV power system is constructed with adoption of orCAD/PSpice10.5 ABM. On this basis, single-stage grid-connected PV system is simul
Publikováno v:
Applied Mechanics and Materials. :752-755
An iterative method of active shimming has been presented, which is based on the Laplaces Spherical Harmonics and the least square theory. This approach makes the inhomogeneity of magnetic field to acceptable restriction. With analysis of the method,
Autor:
Li Hui Guo, Wan Qiang Hu
Publikováno v:
Advanced Materials Research. 703:8-11
Though there are a lot of rules and models for metal material fracture, it makes lots of troubles for engineering application, because of the lacking of reasonable description of fracture principle and change law. This article discusses some basic pr