scholarly journals Structure of aggregates revealed

Nature ◽  
2016 ◽  
Vol 537 (7621) ◽  
pp. 492-493 ◽  
Author(s):  
Robert Tycko
Keyword(s):  
Structure Of Aggregates

THE STRUCTURE OF AGGREGATES AND THE MOLECULAR KINEMATICS OF THE VISCOSITY OF A BERNAL LIQUID

1964 ◽  
Vol 42 (2) ◽  
pp. 304-320 ◽  
Author(s):  
F. W. Smith
Keyword(s):  
Coordination Number ◽  
Free Volume ◽  
Activation Volume ◽  
Molecular Volume ◽  
3 Dimensional ◽  
Theory Of Liquids ◽  
Kinetic Pressure ◽  
Steel Balls ◽  
Set Of Points ◽  
Structure Of Aggregates

The structure of 3-dimensional aggregates is discussed as a set of points on which graphs are constructed. By constructing the Voronoi honeycomb (Dirichlet regions) for the points and applying a small "irregularizing transformation", a "simplicial graph" and a "primitive coordination number" (whose value is close to 14 for all aggregates) can be defined universally for both regular and irregular aggregates. Recent studies of the geometry of irregular aggregates (of steel balls, crystal grains, etc.) are reviewed. The theory of liquids of J. D. Bernal is discussed and the simplicial graph is used to show that the "activation volume" of a Bernal liquid is about one-tenth of the molecular volume. The kinematics of flow of aggregates is discussed in terms of their graphs and in terms of a process of "volume exchange"—the production and destruction of free volume. Using these concepts, an equation is derived for the viscosity of a Bernal liquid as a product of five terms expressing respectively the kinematic, stoichiometric, kinetic, pressure-dependent, and shear-dependent factors.

The formation and structure of aggregates in hemicyanine monolayers

1995 ◽  
Vol 103 (3) ◽  
pp. 167-172 ◽  
Author(s):  
Robert A. Hall ◽  
Peter J. Thistlethwaite ◽  
Franz Grieser ◽  
Nobuo Kimizuka ◽  
Toyoki Kunitake
Keyword(s):  
Structure Of Aggregates

Functional nano-structure of aggregates self-organized on the liquid/solid interface-enzymatic polymerization of ADP

1997 ◽  
Vol 106 (1) ◽  
pp. 245-248 ◽  
Author(s):  
A. Goto ◽  
H. Hakamata ◽  
Y. Kuwahara ◽  
R. Goto ◽  
P. Walde ◽  
...  
Keyword(s):  
Enzymatic Polymerization ◽  
Nano Structure ◽  
Solid Interface ◽  
Self Organized ◽  
Structure Of Aggregates

THE STRUCTURE OF AGGREGATES—A CLASS OF 20-FACED SPACE-FILLING POLYHEDRA

1965 ◽  
Vol 43 (11) ◽  
pp. 2052-2055 ◽  
Author(s):  
F. W. Smith
Keyword(s):  
Diamond Lattice ◽  
Space Filling ◽  
Delaunay Simplices ◽  
Voronoi Polyhedra ◽  
Polyhedral Cells ◽  
Structure Of Aggregates

An example is given of a class of partitions of space into polyhedral cells having an average of 20 faces each. The structure is derived from the Voronoi polyhedra of slightly distorted versions of the diamond lattice, which in turn are duals of the Delaunay simplices of the diamond lattice. A particular member of this class is described: it is a 20-faced stereohedron that packs to fill space by isometries including a rotation.

Probing Heterogeneous Structure of Aggregates

2008 ◽  
Vol 26 (8) ◽  
pp. 1018-1023 ◽  
Author(s):  
Zeng Yang ◽  
Duu-Jong Lee ◽  
Arun S. Mujumdar ◽  
Xiao-Feng Peng ◽  
Ay Su ◽  
...  
Keyword(s):  
Heterogeneous Structure ◽  
Structure Of Aggregates
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