منابع مشابه
Abstract Purpose of the a Mr F
A major faci is being establis Standards (NBS provide extreme emulating a wide varilsty Bf rn typlcal of a small machine job shop. The control architecture adopted is hierarchical in nature and highly modular. The facility will be used for research on interface standards and metrology in an automated environment. The Congressional Acr e d n g up the National Bureau of Standards charges the Bure...
متن کاملTricyclic graphs with maximum Merrifield-Simmons index
It is well known that the graph invariant, ‘the Merrifield–Simmons index’ is important one in structural chemistry. The connected acyclic graphs with maximal and minimal Merrifield–Simmons indices are determined by Prodinger and Tichy [H. Prodinger, R.F. Tichy, Fibonacci numbers of graphs, Fibonacci Quart. 20 (1982) 16–21]. The sharp upper and lower bounds for theMerrifield–Simmons indices of u...
متن کاملOn a conjecture of Merrifield and Simmons
On page 144 of (3], a (see Gutman[l]), formulated as follows:
متن کاملExtremal Hosoya index and Merrifield-Simmons index of hexagonal spiders
For any graph G, let m(G) and i(G) be the numbers of matchings (i.e., the Hosoya index) and the number of independent sets (i.e., the Merrifield–Simmons index) of G, respectively. In this paper, we show that the linear hexagonal spider and zig-zag hexagonal spider attain the extremal values of Hosoya index and Merrifield–Simmons index, respectively. c © 2008 Elsevier B.V. All rights reserved.
متن کاملFrom Merrifield to MetaPhore: A Random Walk with Serendipity
Introduction It is the highpoint of my career to receive this award, named in honor of my Ph.D. mentor, Bruce Merrifield. There is little that I can add to what we all know regarding the impact that Bruce has had on peptide research. Certainly, he has had a more significant impact on my scientific development than any other individual. I do need, however, to acknowledge from the start that I ha...
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ژورنال
عنوان ژورنال: Nature
سال: 1924
ISSN: 0028-0836,1476-4687
DOI: 10.1038/113933a0