Distance and Eccentric sequences to bound the Wiener index, Hosoya polynomial and the average eccentricity in the strong products of graphs

This paper is concerned with the strong product of two graphs, and , and bounds on the Wiener index, Hosoya polynomial and the average eccentricity in this family of graphs. We first introduce the distance sequence of a connected graph. It is defined as the sequence of the distances between all unordered pairs of vertices. We prove that the distance sequence of any connected graph of given order and size is dominated by the distance sequence of the so-called path-complete graph. This is the main tool to prove general results as, among others, that, if is a connected graph of given order and size, then the Wiener index of , for every fixed connected graph , and the Hosoya polynomial , for every with , are maximised if is a path-complete graph. We also investigate the average eccentricity of . We show that for fixed , and chosen from among all connected graphs of given order , it is maximised if is a path of the same order. We also determine a graph of order and minimum degree such that for every connected graph of order and minimum degree , the average eccentricity of never exceeds the average eccentricity of by more than 3.Ministerio de Economía y Competitividad MTM2014-60127-

Abstracts on Radio Direction Finding (1899 - 1995)

The files on this record represent the various databases that originally composed the CD-ROM issue of "Abstracts on Radio Direction Finding" database, which is now part of the Dudley Knox Library's Abstracts and Selected Full Text Documents on Radio Direction Finding (1899 - 1995) Collection. (See Calhoun record https://calhoun.nps.edu/handle/10945/57364 for further information on this collection and the bibliography). Due to issues of technological obsolescence preventing current and future audiences from accessing the bibliography, DKL exported and converted into the three files on this record the various databases contained in the CD-ROM. The contents of these files are: 1) RDFA_CompleteBibliography_xls.zip [RDFA_CompleteBibliography.xls: Metadata for the complete bibliography, in Excel 97-2003 Workbook format; RDFA_Glossary.xls: Glossary of terms, in Excel 97-2003 Workbookformat; RDFA_Biographies.xls: Biographies of leading figures, in Excel 97-2003 Workbook format]; 2) RDFA_CompleteBibliography_csv.zip [RDFA_CompleteBibliography.TXT: Metadata for the complete bibliography, in CSV format; RDFA_Glossary.TXT: Glossary of terms, in CSV format; RDFA_Biographies.TXT: Biographies of leading figures, in CSV format]; 3) RDFA_CompleteBibliography.pdf: A human readable display of the bibliographic data, as a means of double-checking any possible deviations due to conversion

Large space structures and systems in the space station era: A bibliography with indexes (supplement 03)

Bibliographies and abstracts are listed for 1221 reports, articles, and other documents introduced into the NASA scientific and technical information system between January 1, 1991 and June 30, 1991. Topics covered include large space structures and systems, space stations, extravehicular activity, thermal environments and control, tethering, spacecraft power supplies, structural concepts and control systems, electronics, advanced materials, propulsion, policies and international cooperation, vibration and dynamic controls, robotics and remote operations, data and communication systems, electric power generation, space commercialization, orbital transfer, and human factors engineering