Results 11 to 20 of about 347,722 (310)

Development of a rapid fractionation tool for natural organic matter [PDF]

open access: yes, 2010
A rapid natural organic matter (NOM) fractionation tool was developed to enable NOM to be classified by hydrophobicity at the water treatment works and in the catchment.
Piper, Claire
core   +7 more sources

Occupancy fraction, fractional colouring, and triangle fraction [PDF]

open access: yesJournal of Graph Theory, 2021
Given $\varepsilon>0$, there exists $f_0$ such that, if $f_0 \le f \le Δ^2+1$, then for any graph $G$ on $n$ vertices of maximum degree $Δ$ in which the neighbourhood of every vertex in $G$ spans at most $Δ^2/f$ edges, (i) an independent set of $G$ drawn uniformly at random has at least $(1/2-\varepsilon)(n/Δ)\log f$ vertices in expectation, and (ii)
Ewan Davies   +3 more
openaire   +5 more sources

The Last Fraction of a Fractional Conjecture [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2010
Reed conjectured that for every $\varepsilon>0$ and every integer $\Delta$, there exists g such that the fractional total chromatic number of every graph with maximum degree $\Delta$ and girth at least g is at most $\Delta+1+\varepsilon$. The conjecture was proven to be true when $\Delta=3$ or $\Delta$ is even. We settle the conjecture by proving it
Frantisek Kardos   +2 more
openaire   +2 more sources

Fractional permissions without the fractions [PDF]

open access: yesProceedings of the 13th Workshop on Formal Techniques for Java-Like Programs, 2011
Fractional permissions are a popular approach to reasoning about programs that use shared-memory concurrency. Abstractly, they provide a way of managing that either multiple readers or one writer thread can access a resource concurrently. Concretely, specification using fractional permissions typically requires the user to pick concrete mathematical ...
Stefan Heule   +3 more
openaire   +1 more source

Carbon isotope fractionation during aerobic biodegradation of trichloroethene by Burkholderia cepacia G4: a tool to map degradation mechanisms [PDF]

open access: yes, 2002
The strain Burkholderia cepacia G4 aerobically mineralized trichloroethene (TCE) to CO2 over a time period of similar to20 h. Three biodegradation experiments were conducted with different bacterial optical densities at 540 nm (OD(540)s) in order to test
Schuth, Christoph   +25 more
core   +1 more source

Recent advances in high-temperature fractionation of polyolefins

open access: yes, 2022
S.77-140The synthesis and characterization of polyolefins continues to be one of the most important areas for academic and industrial research. One consequence of the development of new ""tailor-made"" polyolefins is the need for new and improved ...
Macko, Tibor   +2 more
core   +1 more source

Fractional Planks [PDF]

open access: yesDiscrete & Computational Geometry, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ron Aharoni   +3 more
openaire   +3 more sources

Fractionalize this [PDF]

open access: yesNature Physics, 2010
Invited Perspective for Nat ...
openaire   +2 more sources

Base specific fractionation of double stranded DNA: affinity chromatography on a novel type of adsorbant [PDF]

open access: yes, 1978
Bünemann H, Müller W. Base specific fractionation of double stranded DNA: affinity chromatography on a novel type of adsorbant. Nucleic Acids Research.
Werner Mliller   +4 more
core   +1 more source

Fractional Coins and Fractional Derivatives [PDF]

open access: yesAbstract and Applied Analysis, 2013
This paper discusses the fundamentals of negative probabilities and fractional calculus. The historical evolution and the main mathematical concepts are discussed, and several analogies between the two apparently unrelated topics are established. Based on the new conceptual perspective, some experiments are performed shading new light into possible ...
openaire   +5 more sources

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