Results 111 to 120 of about 5,076,999 (331)
Advanced Engineering Materials, EarlyView.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
Incidence matrix and cover matrix of nested interval orders
The Electronic Journal of Linear Algebra, 2012 For any poset P , its incidence matrix n and its cover matrix C are the P × P (0, 1) matrices such that n(x, y) = 1 if any only if x is less than y in P and C(x, y) = 1 if any only if x is covered by y in P. It is shown that n and C are conjugate to each other in the incidence algebra of P over a field of characteristic 0 provided P is the nested ...
Yaokun Wu, Shizhen Zhao
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Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer
Advanced Functional Materials, EarlyView.Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero +12 more
wiley +1 more source
Matrix Rational Completions Satisfying Generalized Incidence Equations
, 1965 Let us consider the following problem. Let there be v elements x1 , . . . , xv and v sets S1, . . . , Sv such that every set contains exactly k distinct elements and every pair of sets has exactly λ distinct elements in common.
E. C. Johnsen
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Advanced Functional Materials, EarlyView.Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum +5 more
wiley +1 more source
A resistant case of Kawasaki Disease [PDF]
, 2007 Kawasaki disease (KD) is an acute febrile illness of childhood of unknown origin which may cause coronary arteritis and death. The Maltese incidence has been calculated at 3.2/100,000 population 4 years of age, similar to that reported in European ...
Mulvaney, Shirley +2 more
core
A benefit incidence matrix for urban transport improvement
Papers in Regional Science, 1992 By constructing a socioeconomic model within the framework of the multiregional general equilibrium theory, this paper proposes a matrix for an urban transport improvement project that illustrates the relationship between benefit generation and incidence.
Hisa Morisugi, Eiji Ohno
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Configuration Synthesis of Metamorphic Mechanisms Based on Characteristic Incidence Matrix
, 2010 This paper presents an approach to the configuration synthesis of metamorphic mechanisms with consideration of both link and joint changes. The technique, referred to here as computational geometry, uses a constraint graph to represent topological ...
Jian S. Dai +3 more
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Unraveling the Electronic Structure of Silicon Vacancy Centers in 4H‐SiC
Advanced Functional Materials, EarlyView.The electronic structure of the silicon vacancy in 4H‐SiC is probed via transient absorption spectroscopy, uncovering previously inaccessible excited states of the quartet and doublet spin channels, including the V2' transition. In combination with theoretical analysis, a comprehensive picture of the electronic structure is established.
Ali Tayefeh Younesi +9 more
wiley +1 more source
TOPOLOGICAL ANALYSIS OF THYRISTOR CIRCUITS
Academy Journal of Science and Engineering, 2009 The paper utilises the network topology in the analysis of a thyristor circuit – an oscillating chopper. The graph of the chopper was developed following which the complete incidence matrix was formed.
Babatunde Araoye ADEGBOYE
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