Results 151 to 160 of about 459,830 (368)

Spatial heterogeneity of dissolved oxygen and sediment fluxes revealed by autonomous robotic lakewater profiling

open access: yesLimnology and Oceanography, EarlyView.
Abstract Inland waters are under extreme anthropogenic pressure, while their ecosystem services, including water supply, food production, biodiversity, flood protection, and recreation, hinge on their health and condition. Therefore, water quality monitoring gains attention, and more resources are invested to increase spatial and temporal survey ...
Eric Röder   +5 more
wiley   +1 more source

Context-free grammars with cancellation properties

open access: yesTheoretical Computer Science, 1985
Let F(X) be the free group generated by a set X and \(X^*\) be the free monoid generated by X. If \(Q\subseteq X^*\times X^*\), then [Q] denotes the congruence of \(X^*\) generated by elements of Q and \(\) denotes the congruence of F(X) generated by the elements of Q.
openaire   +2 more sources

Glacial meltwater drives high CH4 supersaturation in Maxwell Bay, King George Island (Southern Ocean)

open access: yesLimnology and Oceanography Letters, EarlyView.
Abstract Coastal waters exhibit the highest and most dynamic dissolved CH4 concentrations in marine environments, but significant knowledge gaps on the distribution and emissions, particularly in the Southern Ocean, still exist. We quantified dissolved CH4 concentrations and sea–air fluxes in the coastal waters of Maxwell Bay, King George Island ...
Lina A. Holthusen   +9 more
wiley   +1 more source

Abstract families of context-free grammars

open access: yesInternational Journal of Computer Mathematics, 1981
An abstract family of grammars (AFG) may be defined as a class of grammars for which the corresponding class of languages forms an abstract family of languages (AFL) as defined by Ginsburg and Greibach. The derivation bounded grammars of Ginsburg and Spanier is an example of an AFG which is properly included in the class of all context-free grammars ...
openaire   +4 more sources

Pressurized plankton observatory offers a new window into deep‐sea larval behavior

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract The High‐Pressure Plankton Observatory (HiPPO) is designed to quantify motions of zooplankton for behavioral study, including swimming and metabolic responses to environmental perturbations. It builds on prior chamber designs while filling gaps in capability for resolving orientation of small (< 1 mm) plankton, tracking their movements over ...
Rodrigo Zúñiga Mouret   +11 more
wiley   +1 more source

Continuous determination of dissolved inorganic carbon fluxes from pumping suspension feeders

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Suspension‐feeding organisms play a pivotal role in the cycling of carbon in the oceans. They filter large amounts of water, filter out organic matter, remineralize it, and release respiratory CO2 back into the water column. Measuring emissions of respiratory CO2 in situ from suspension feeders poses the challenge of detecting small changes in
Neomie Diga Darmon   +8 more
wiley   +1 more source

Grammar-Based Specification and Parsing of Binary File Formats

open access: yesInternational Journal of Digital Curation, 2012
The capability to validate and view or play binary file formats, as well as to convert binary file formats to standard or current file formats, is critically important to the preservation of digital data and records. This paper describes the extension of
William Underwood
doaj   +4 more sources

A Task-driven Grammar Refactoring Algorithm

open access: yesActa Polytechnica, 2012
This paper presents our proposal and the implementation of an algorithm for automated refactoring of context-free grammars. Rather than operating under some domain-specific task, in our approach refactoring is perfomed on the basis of a refactoring task ...
Ivan Halupka   +2 more
doaj  

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