Results 41 to 50 of about 1,000,026 (144)

Min (A)cyclic Feedback Vertex Sets and Min Ones Monotone 3-SAT

open access: yes, 2018
In directed graphs, we investigate the problems of finding: 1) a minimum feedback vertex set (also called the Feedback Vertex Set problem, or MFVS), 2) a feedback vertex set inducing an acyclic graph (also called the Vertex 2-Coloring without ...
Rusu, Irena
core   +2 more sources

Set K-Cover Algorithms for Energy Efficient Monitoring in Wireless Sensor Networks

open access: yes, 2003
Wireless sensor networks (WSNs) are emerging as an effective means for environment monitoring. This paper investigates a strategy for energy efficient monitoring in WSNs that partitions the sensors into covers, and then activates the covers iteratively ...
Abrams, Zoe   +2 more
core   +4 more sources

Land Cover Mapping of a Tropical Region by Integrating Multi-Year Data into an Annual Time Series

open access: yesRemote Sensing, 2015
Generating annual land cover maps in the tropics based on optical data is challenging because of the large amount of invalid observations resulting from the presence of clouds and haze or high moisture content in the atmosphere.
Jesús A. Anaya   +2 more
doaj   +1 more source

Mapping Outburst Floods Using a Collaborative Learning Method Based on Temporally Dense Optical and SAR Data: A Case Study with the Baige Landslide Dam on the Jinsha River, Tibet

open access: yesRemote Sensing, 2021
Outburst floods resulting from giant landslide dams can cause devastating damage to hundreds or thousands of kilometres of a river. Accurate and timely delineation of flood inundated areas is essential for disaster assessment and mitigation.
Zhongkang Yang   +5 more
doaj   +1 more source

Reversible non-volatile switch based on a TCNQ charge transfer complex [PDF]

open access: yes, 1993
A solid-state synaptic memory matrix (10) having switchable weakly conductive connections at each node (24) whose resistances can be selectably increased or decreased over several orders of magnitude by control signals of opposite polarity, and which ...
DiStefano, Salvador   +2 more
core   +1 more source

Optimization in the distribution and sequencing of machines in wood harvesting in planted forests

open access: yesForest Systems
Aim of study: The objective was to evaluate an optimized model for the distribution and sequencing of machines in tree felling and processing and extraction operations, aiming to reduce unproductive times and gains in production capacity.
Willian Masioli   +4 more
doaj   +1 more source

Vero cell technology for rapid development of inactivated whole virus vaccines for emerging viral diseases

open access: yesExpert Review of Vaccines, 2017
Introduction: Rapid development and production of vaccines against emerging diseases requires well established, validated, robust technologies to allow industrial scale production and accelerated licensure of products.
P. Noel Barrett   +4 more
doaj   +1 more source

Formation and degradation of immature laterites in response to paleoclimatic changes in the eastern Amazon [PDF]

open access: yesBrazilian Journal of Geology
Lateritic formations are widespread in eastern Amazon, occurring as bauxite-bearing mature profiles on plateaus or as immature ones in lowlands. Climate and landscape evolution over the Neogene were analyzed via mineralogical (XRD), textural (optical ...
Marcondes Lima da Costa   +3 more
doaj   +1 more source

Superselectors: Efficient Constructions and Applications

open access: yes, 2010
We introduce a new combinatorial structure: the superselector. We show that superselectors subsume several important combinatorial structures used in the past few years to solve problems in group testing, compressed sensing, multi-channel conflict ...
A. Bonis De   +25 more
core   +1 more source

Endotrophin is associated with chronic multimorbidity and all-cause mortality in a cohort of elderly women

open access: yesEBioMedicine, 2021
Background: The signalling peptide endotrophin is derived through proteolytic cleavage of the carboxyl-terminal during formation of type VI collagen.
Line Mærsk Staunstrup   +6 more
doaj   +1 more source

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