Results 191 to 200 of about 1,654,268 (228)
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Integral Transforms and Special Functions, 2000
A convolution structure in defined on s N−1, the unit sphere in RN . It is used to construct a space of Boehmians of S N−1; which generalizes the space of Schwartz distributions on S N−1;.
Mikusiński, Piotr, Pyle, Bradford A.
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A convolution structure in defined on s N−1, the unit sphere in RN . It is used to construct a space of Boehmians of S N−1; which generalizes the space of Schwartz distributions on S N−1;.
Mikusiński, Piotr, Pyle, Bradford A.
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, 2014
A series of nitrogen-containing polymer and carbon spheres were obtained by the sol–gel method. In particular, the nitrogen-rich carbon spheres were prepared by one-pot hydrothermal synthesis in the presence of resorcinol/formaldehyde as carbon ...
Nilantha P. Wickramaratne +5 more
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A series of nitrogen-containing polymer and carbon spheres were obtained by the sol–gel method. In particular, the nitrogen-rich carbon spheres were prepared by one-pot hydrothermal synthesis in the presence of resorcinol/formaldehyde as carbon ...
Nilantha P. Wickramaratne +5 more
semanticscholar +1 more source
Graphene-wrapped ZnO hollow spheres with enhanced electromagnetic wave absorption properties
, 2014Graphene-wrapped ZnO hollow spheres were synthesized by a two-step process, which combined a hydrothermal reaction with surface modification. The experimental results show that reduced graphene oxide sheets adhere entirely to the surface of the ZnO ...
Meikang Han +6 more
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Mesoporous titania spheres with tunable chamber stucture and enhanced photocatalytic activity.
Journal of the American Chemical Society, 2007Urchinlike TiO2 spheres with tunable chamber structure were synthesized using a template-free solvothermal method. The unique sphere-in-sphere chamber structure allows multiple reflections of UV light resulting in greatly enhanced photocatalytic activity.
Hexing Li +7 more
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Applications: Aggregated Spheres, Layered Spheres, and Spheres Containing Inclusions
2003The theory developed so far is suitable to investigate the optical properties both of single particles and of dispersions of particles that are of interest in several fields of physics. With the proviso that careful tests are necessary to verify the adequacy of the model in the sense explained in Sect.
Paolo Denti +2 more
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, 2014
Porous nitrogen-doped hollow carbon spheres (PNHCS) had been prepared by pyrolysis of hollow polyaniline spheres (HPS), which were synthesized by the use of sulfonated polystyrene spheres (SPS) as a hard template.
Jinpeng Han +5 more
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Porous nitrogen-doped hollow carbon spheres (PNHCS) had been prepared by pyrolysis of hollow polyaniline spheres (HPS), which were synthesized by the use of sulfonated polystyrene spheres (SPS) as a hard template.
Jinpeng Han +5 more
semanticscholar +1 more source
Future Generation Computer Systems, 1994
Abstract We present a parallel simulated annealing algorithm for crystallization of N -body systems. The implementation uses systolic simulated annealing with additional parallel cost function evaluation. We have a hybrid topology which consists of a systolic ring and attached to each ring processor a tree of processors.
Voogd, J.M., Sloot, P.M.A., Dantzig, R.
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Abstract We present a parallel simulated annealing algorithm for crystallization of N -body systems. The implementation uses systolic simulated annealing with additional parallel cost function evaluation. We have a hybrid topology which consists of a systolic ring and attached to each ring processor a tree of processors.
Voogd, J.M., Sloot, P.M.A., Dantzig, R.
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, 2014
Alkali lignin, recovered from the pulping black liquor, was chemically modified by acetylating, and then used as a biomass resource to prepare uniform colloidal spheres via self-assembly.
Yong Qian +4 more
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Alkali lignin, recovered from the pulping black liquor, was chemically modified by acetylating, and then used as a biomass resource to prepare uniform colloidal spheres via self-assembly.
Yong Qian +4 more
semanticscholar +1 more source
Equidistribution on the Sphere
SIAM Journal on Scientific Computing, 1997A concept of generalized discrepancy, which involves pseudodifferential operators to give a criterion of equidistributed pointsets, is developed on the sphere. A simply structured formula in terms of elementary functions is established for the computation of the generalized discrepancy.
Freeden, Willi, Cui, J.
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American Sociological Review, 1972
This is a study of network representation: The data represent a set of interlocked directorates—specifically, the network in which the boards of major banks are interlocked with the boards of major industrials. The problem is to represent this network so as to organize it and describe its major outlines.
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This is a study of network representation: The data represent a set of interlocked directorates—specifically, the network in which the boards of major banks are interlocked with the boards of major industrials. The problem is to represent this network so as to organize it and describe its major outlines.
openaire +2 more sources