We study the p-harmonic flow from the unit disk D2 to the unit sphere S2 under rotational symmetry. We show that the Dirichlet problem with constant boundary condition is locally well-posed in the class of clas
Here we report the investigation of HZSM-5 with dominantly sinusoidal channel openings over its acid-sites free external surface to enforce xylene’s diffusion, which enabled both good reactivity for toluene conversion and selectivity (more than 99%) towardsp-xylene in a 220 h methanol–toluene al...
However, as it is demonstrated here, the band-flattening capability is not harmed by the PT symmetry, as long as the PTMM is in the exact PT phase.References McPhedran, R. C., Shadrivov, I. V., Kuhlmey, B. T. & Kivshar, Y. S. Metamaterials and metaoptics. NPG Asia Mater. 3...
①、σ键和π键。 ⅰ、σ键:沿键轴方向重叠,呈圆柱形对称,称为σ轨道,生成的键称为σ键σ是希腊字母,相当于英文的s,是对称Symmetry[`simitri]这个字的第一个字母)。 σ键形成的方式: ⅱ、π键:两个p轨道彼此平行地重叠起来,轨道的对称面是通过键轴的平面,这...
d–h show SAED patterns correspond to areas in c from ① to ⑤, respectively. Based on the unit cell parameters and Pnma symmetry, the main indexes are marked in yellow and red for different twin domains. i The deduced twinning model of HZSM-5 crystals, where the two twin components, ...
By symmetry, we must choose the barycentre u α,β of E α,β as a new vertex. For notational convenience, we label the elements of Sym(3) and Alt(4) as follows: We use the simpler notation u ij for the new vertex uαi,βj. One may check that u i+3,j−6=u i...
plane of symmetry 对称面plane of trajectory orbital 轨道面plane of unconformity 不整合面plane survey 平面测量plane table 平板仪plane table plate 平板仪测板plane table surveying 平板测量planet 行星planetable survey 平板仪测量planetary radiation budget 行星辐射收支planetary wind 行星风planetography 行星表面...
2a). The resolutions of the cryo-EM reconstruction were substantially improved by applying the two-fold symmetry, suggestive of a very rigid dimeric interface in the MjaRNase P complex (Supplementary Figs 3, 4). Secondary structural elements were clearly resolved in the EM density maps, allowing...
Orbital-based GNNs16,17 use symmetry-adapted atomic orbital features to predict different molecular properties. Though orbital-based GNNs predict molecular properties well, they are not an excellent choice for capturing complicated periodic structures such as crystals since they describe the nature of ...
Corrections to the Wess–Zumino–Witten anomaly caused by the explicit breaking of the SU(3)×SU(3) chiral symmetry are studied using the effective meson Lagrangian based on the Nambu–Jona-Lasinio model with the simultaneous expansion in derivatives, current quark masses, and 1/Nc powers. The...