Results 71 to 80 of about 1,418,415 (161)

Counting Tree-like Multigraphs with a Given Number of Vertices and Multiple Edges

open access: yesMathematics
The enumeration of chemical graphs plays a crucial role in cheminformatics and bioinformatics, especially in the search for novel drug discovery. These graphs are usually tree-like multigraphs, or they consist of tree-like multigraphs attached to a ...
Muhammad Ilyas   +2 more
doaj   +1 more source

Discrete optimization. proceedings of the Advanced Research Institute on Discrete Optimization and Systems Applications of the Systems Science Panel of NATO and of the Discrete Optimization Symposium, co-sponsored by IBM Canada and SIAM, Banff, Alta. and Vancouver, B.C., Canada, August 1977 /

open access: yes, 1979
Includes bibliographical references.Print version record.Cover; TOCContents; Part 3: Methodology; Section 1: Surveys; CHChapter 1. Disjunctive programming; CHChapter 2. Methods of nonlinear 0-1 programming; CHChapter 3.
IBM Canada.   +7 more
core  

Approximation properties relative to continuous scale space for hybrid discretisations of Gaussian derivative operators

open access: yesFrontiers in Signal Processing
This paper presents an analysis of properties of two hybrid discretisation methods for Gaussian derivatives, based on convolutions with either the normalised sampled Gaussian kernel or the integrated Gaussian kernel followed by central differences.
Tony Lindeberg
doaj   +1 more source

Consensus in discrete-time nonlinearly coupled networks

open access: yes, 2014
We consider consensus algorithms for multi-agent networks with discrete-time linear identical MIMO agents. The agents may be of arbitrary order, the interaction topology may be time-varying and the couplings may be nonlinear and uncertain, however ...
Proskurnikov, Anton
core  

Discrete embedded solitons [PDF]

open access: yes, 2005
We address the existence and properties of discrete embedded solitons (ESs), that is localised waves existing inside the phonon band in a nonlinear dynamical-lattice model. The model describes a one-dimensional array of optical waveguides with both Chi(2)
Yagasaki, Y   +3 more
core  

NEW CHROMATO DERIVATIVES AND ADDUCTS: SYNTHESIS, INFRARED AND MÖSSBAUER STUDIES

open access: yesScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2011
Eight new chromato organostannic adducts have been synthesized and studied by infrared and Mössbauer spectroscopy. Discrete, polymeric and supramolecular structures have been suggested, the environment around the tin centre being in all cases, trigonal ...
Bernard Mahieu   +3 more
doaj  

A framework for discrete optimization of stellarator coils

open access: yesNuclear Fusion
Designing magnets for three-dimensional plasma confinement is a key task for advancing the stellarator as a fusion reactor concept. Stellarator magnets must produce an accurate field while leaving adequate room for other components and being reasonably ...
K.C. Hammond
doaj   +1 more source

Using discrete choice experiments for environmental valuation [PDF]

open access: yes
This paper provides with a review of the state of the art of environmental valuation with discrete choice experiments (DCE). The growing body of literature on this field serves to emphasise the increasing role that DCE are playing in environmental ...
Hoyos Ramos, David
core  

SYNTHESIS AND SPECTROSCOPIC CHARACTERIZATION OF SOME NEW PO43-, HPO42- AND HPO32- CONTAINING ORGANOTIN (IV) DERIVATIVES

open access: yesScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2016
Four new organotin (IV) derivatives containing coordinating phosphate, hydrogenophosphate and hydrophosphonate anions have been synthesized and studied by infrared and Mössbauer spectroscopies.
WALY DIALLO, LIBASSE DIOP
doaj  

Nonlinear Discrete Observer for Flexibility Compensation of Industrial Robots [PDF]

open access: yes, 2014
This paper demonstrates the solutions of digital observer implementation for industrial applications. A nonlinear high-gain discrete observer is proposed to compensate the tracking error due to the flexibility of robot manipulators. The proposed discrete
ABBA, Gabriel   +2 more
core  

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