Results 221 to 230 of about 145,999 (267)
Discovery of Novel Ionizable Lipids for Lipid Nanoparticles: Lipophilicity as a Predictor of Squaramide Head Group Lipid Clearance. [PDF]
Small SciKumarasinghe ES +14 more
europepmc +1 more source
1,3,2-Dioxaborine-based mero-polyanionic dyes: high-extinction NIR-absorbing polymethines. [PDF]
RSC AdvPolishchuk V, Shishkina S, Shandura M.
europepmc +1 more source
The hydrodynamic torque dipole from rotary bacterial flagella powers symmetric discs. [PDF]
Nat PhysGrober D +3 more
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Scaffolds with optimized quaternary symmetry for de novo cryoEM structure determination of small RNAs. [PDF]
Nat MethodsJones CP, Ferré-D'Amaré AR.
europepmc +1 more source
Hierarchical pore engineering in waste-derived carbons for supercapacitors: bridging the performance gap from three-electrode evaluation to practical two-electrode devices. [PDF]
RSC AdvIdris MB, Mamba BB, Xolile F.
europepmc +1 more source
Some of the next articles are maybe not open access.
Graphs and Combinatorics, 2000
The authors introduce the notion of a symmetric graph design (SGD) which is a generalization of a symmetric balanced incomplete block design. In particular, a symmetric \((n,G,\lambda;F)\)-design is a collection \(\{G_1, G_2, \dots{}, G_n\}\) of spanning subgraphs of the complete graph \(K_n\) such that: (i) \(G_i \simeq G\) for \(i = 1, \dots{}, n\); (
Hans-Dietrich O. F. Gronau +3 more
openaire +1 more source
The authors introduce the notion of a symmetric graph design (SGD) which is a generalization of a symmetric balanced incomplete block design. In particular, a symmetric \((n,G,\lambda;F)\)-design is a collection \(\{G_1, G_2, \dots{}, G_n\}\) of spanning subgraphs of the complete graph \(K_n\) such that: (i) \(G_i \simeq G\) for \(i = 1, \dots{}, n\); (
Hans-Dietrich O. F. Gronau +3 more
openaire +1 more source
Symmetric designs and geometroids
Combinatorica, 1989A \(\lambda\)-set in a symmetric 2-(v,k,\(\lambda)\) design \(\Pi\) is a subset S meeting every block in 0, 1 or \(\lambda\) points such that for any point of S there is a unique block meeting S at that point only. In this paper, families of symmetric 2-designs containing \(\lambda\)-sets are investigated.
T. P. McDonough, Vassili C. Mavron
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Designs, Codes and Cryptography, 1992
The author proves some necessary existence conditions for quasi-symmetric designs, i.e. designs with exactly two block intersection sizes. Properties of the incidence matrix of the design are used to achieve the results which rule out several sets of admissible parameters for quasi- symmetric designs.
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The author proves some necessary existence conditions for quasi-symmetric designs, i.e. designs with exactly two block intersection sizes. Properties of the incidence matrix of the design are used to achieve the results which rule out several sets of admissible parameters for quasi- symmetric designs.
openaire +2 more sources