Browsing Materials Science & Technology by Publication Date
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The cyclecomplete graph Ramsey number r ( C 8 , K 8 )
( Tokyo University of Science , 2007 , Article)The cyclecomplete graph Ramsey number r ( C m , K n ) is the smallest integer N such that every graph G of order N contains a cycle C m on m vertices or has independent number α ( G ) ≥ n . ... 
The basis number of the strong product of paths and cycles with bipartite graphs
( Central Missouri State University , 2007 , Article)The basis number of a graph G is defined to be the least integer d such that there is a basis B of the cycle space of G such that each edge of G is contained in at most d members of B. MacLane [13] proved that a graph G ... 
The cyclecomplete graph Ramsey number r(C6,K8)≤38
( Tokyo University of Science , 2008 , Article)The cyclecomplete graph Ramsey number r ( C m , K n ) is the smallest integer N such that every graph G of order N contains a cycle C m on m vertices or has independent number α ( G ) ≥ n . ... 
Minimum cycle bases for direct products of K2 with complete graphs
( University of Queensland Press , 2009 , Article)We construct a minimum cycle basis for the direct product K2 x Kp of two complete graphs where p > 2. For p > 3, these bases consists only of squares. This completes the work of R. Hammack, who treated the case Kp x ... 
Fundamental group and cycle space of dual graphs and applications
( Elsevier , 2010 , Article)In this work, we study the fundamental group of dual graph of a planar graph. Moreover, we show that a planar graph G has no cut vertex if and only if N(Π(D(G))) = N(Π(D(G − v))) − 1 for any v ∈ V(G). Some applications ... 
A new upper bound of the basis number of the lexicographic product of graphs
( Charles Babbage Research Centre , 2010 , Article)An upper bound of the basis number of the lexicographic product of two graphs from the basis number of the factors is presented. Furthermore, the basis numbers of the lexicographic product of some classes of graphs is determined. 
On the basis number and the minimum cycle bases of the wreath product of some graphs II
( University of Zielona Gora , 2010 , Article)A construction of a minimum cycle bases for the wreath product of a star by a path, two stars and a star by a wheel is given. Moreover, the basis numbers of these products are determined. 
On minimum cycle bases of the wreath product of wheels with stars
( Zenodo , 2010 , Article)The length of a cycle basis of a graph is the sum of the lengths of its elements. A minimum cycle basis is a cycle basis with minimum length. In this work, a construction of a minimum cycle basis for the wreath product of ... 
Edgemaximal graphs without θ 7 graphs
( Tokyo University of Science , 2011 , Article)Let G(n; θ2k+1, ≥ δ) denote the class of nonbipartite θ2k+1free graphs on n vertices and minimum degree at least δ and let f (n; θ2k+1, ≥ δ) = max{ε(G): G ∈ G(n; θ2k+1, ≥ δ)}. In this paper we determinj an upker bound ... 
Edge Maximal C2k+1edge Disjoint Free Graphs
( University of Zielona Gora , 2012 , Article)For two positive integers r and s, G(n;r,s) denotes to the class of graphs on n vertices containing no r of sedge disjoint cycles and f(n;r,s) = max{E(G):G ∈ G(n;r,s)}. In this paper, for integers r ≥ 2 and k ≥ 1, we ... 
Date palm wood flour/glass fibre reinforced hybrid composites of recycled polypropylene: Mechanical and thermal properties
( Elsevier, Ltd , 2012 , Article)Recycled polypropylene (RPP) based hybrid composites of date palm wood flour/glass fibre were prepared by different weight ratios of the two reinforcements. Mixing process was carried out in an extruder and samples were ... 
Mechanical and thermal properties of date palm leaf fiber reinforced recycled poly (ethylene terephthalate) composites
( Elsevier, Ltd , 2013 , Article)Development of a recycled poly (ethylene terephthalate) (PETr) reinforced with surface treated date palm leaf fiber (DPLF) composites with enhanced mechanical properties have been studied. Surface modified date palm leaf ... 
EdgeMaximal Graphs Without θ2k+1Graphs
( Taylor and Francis Ltd. , 2014 , Article)Let σ(n; θ2k+1) denote the class of nonbipartite graphs on n vertices having no θ2k+1 graph and f(n; θ2k+1) = max{ ε(G): G ∊ σ (n; θ2k+1)}. In this paper we determine f(n; θ2k+1), by proving that for k ≥ 4 and n ≥ 36k. ... 
The ramsey number for theta graph versus a clique of order three and four
( University of Zielona Gora , 2014 , Article)For any two graphs F1 and F2, the graph Ramsey number r(F1, F2) is the smallest positive integer N with the property that every graph on at least N vertices contains F1 or its complement contains F2 as a subgraph. In ... 
EdgeMaximal θ2k+1Edge Disjoint Free Graphs
( Kyungmoon Publishing , 2014 , Article)For two positive integers r and s, G(n; r; θs) denotes to the class of graphs on n vertices containing no r of edge disjoint θsgraphs and f(n; r; θs) = max{E(G) : G ∈ G(n; r; θs)}. In this paper, for integers r, k ≥ 2, ... 
Electronic vs Ionic limitations to electrochemical performance in Li4Ti5O12based organic suspensions for lithiumredox flow batteries
( Electrochemical Society Inc. , 2014 , Article)Here, we report the electrochemical response of the LTO/KB anolytes vs. lithium as function of the cycling rate in static mode (i.e. no flow) and using a homemade cell. The KB content was fixed at 3 wt% while the LTO ... 
Thermoelectric properties of SbNCa3 and BiNCa3 for thermoelectric devices and alternative energy applications
( Elsevier B.V. , 2014 , Article)Thermoelectric properties of two antiperovskites SbNCa3 and BiNCa3 are calculated using first principles calculations. High values of Seebeck coefficients are observed for these materials. Electrical and thermal conductivities ... 
Graphene and graphitic derivative filled polymer composites as potential sensors
( Royal Society of Chemistry , 2015 , Article)Graphite and numerous graphiticderived micro and nanoparticles have gained importance in current materials science research. These twodimensional sheets of sp2hybridized carbon atoms remarkably influence the properties ... 
TiO2pillared clays with wellordered porous structure and excellent photocatalytic activity
( Royal Society of Chemistry , 2015 , Article)TiO2pillared clays with wellordered porous structures are successfully prepared via incorporating TiO2 nanosol particles into the clays, where empty octahedral sites are partially modified with divalent metal ions such ... 
General strategy to synthesize uniform mesoporous TiO2/Graphene/Mesoporous TiO2 sandwichlike nanosheets for highly reversible lithium storage
( American Chemical Society , 2015 , Article)Uniform oxide deposition on graphene to form a sandwichlike configuration is a wellknown challenge mainly due to their large lattice mismatches and poor affinities. Herein, we report a general strategy to synthesize ...