海量图书期刊资源,随时随地畅享阅读乐趣
The Clar covering polynomial of hexagonal systems IHeping Zhang; Fuji Zhang · 1996
The Clar covering polynomial of hexagonal systems IIIHeping Zhang; Fuji Zhang · 2000
On the Quasi-Ordering of Catacondensed Hexagonal Systems with Respective to their Clar Covering PolynomialsXu, Liqiong; Zhangb, Fuji · Zeitschrift für Naturforschung A · 2012
The Clar covering polynomial of hexagonal systems II. An application to resonance energy of condensed aromatic HydrocarbonsZhang Fu-Ji; Zhang He-Ping; Liu Yu-Ting · 1996
InYanyan Wang; Heping Zhang; Lei Zhang; Wenjun Liu; Yong Zhang; Xinchang Zhang; Tiansong Sun · 2010
Hexagonal systems with fixed bondsFuji Zhang; Xueliang Li; Heping Zhang · 1993
Some graphs determined by their spectraXiaoling Zhang; Heping Zhang · 2009
Plane elementary bipartite graphsHeping Zhang; Fuji Zhang · 2000
Perfect Matchings of Polyomino GraphsHeping Zhang,Fuji Zhang · Graphs and Combinatorics · 1997
NIH Public AccessZhang, Xu; Shi, Heping; Wu, Jiaxi; Zhang, Xuewu; Sun, Lijun; Chen, Chuo · 2014
Job Opportunity Finding by Text ClassificationShilin Zhang; Heping Li; Shuwu Zhang · 2012
Analysis of Twin Data Using SASRui Feng, Gongfu Zhou, Meizhuo Zhang and Heping Zhang · Biometrics · 2009