Results 11 to 20 of about 3,633,425 (318)

Prototype-based sampling

open access: yes, 2022
A prototype-based sampling method for spatial data sampling and its application in landslide susceptibility mapping 
Prototype-based sampling (14190421)
core   +1 more source

Merging Unmanned Aerial Systems (UAS) Imagery and Echo Soundings with an Adaptive Sampling Technique for Bathymetric Surveys

open access: yesRemote Sensing, 2018
Bathymetric surveying to gather information about depths and underwater terrain is increasingly important to the sciences of hydrology and geomorphology.
Laura V. Alvarez   +5 more
doaj   +1 more source

Features of the quasi-optimal discrete signal processing [PDF]

open access: yesРадиофизика и электроника, 2019
Subject and Purpose. The subject of the research is a digital signal processing system of a radar, consisting of an input filter, an analog-to-digital converter and a processor that implements an algorithm for detecting of information signal in ...
O.V. Sytnik
doaj   +1 more source

Quantitative estimation of sampling uncertainties for mycotoxins in cereal shipments [PDF]

open access: yes, 2012
Many countries receive shipments of bulk cereals from primary producers. There is a volume of work that is ongoing that seeks to arrive at appropriate standards for the quality of the shipments and the means to assess the shipments as they are out-loaded.
Bourgeois, Florent   +2 more
core   +1 more source

Evaluation of respondent-driven sampling [PDF]

open access: yes, 2012
Respondent-driven sampling produced a generally representative sample of this well-connected nonhidden population. However, current respondent-driven sampling inference methods failed to reduce bias when it occurred.
Joseph Katongole   +34 more
core   +1 more source

A New All-Season Passive Sampling System for Monitoring H2S in Air

open access: yesThe Scientific World Journal, 2002
A new Maxxam All-Season Passive Sampling system for monitoring H2S in air has been developed. This passive sampling system employs the same approaches as the Maxxam All-Season Passive Sampling Systems for monitoring SO2, NO2, and O3 reported previously ...
Hongmao Tang   +3 more
doaj   +1 more source

Imperfect Estimation of Lepeophtheirus salmonis Abundance and Its Impact on Salmon Lice Treatment on Atlantic Salmon Farms

open access: yesFrontiers in Marine Science, 2021
Accurate monitoring of sea lice levels on salmon farms is critical to the efficient management of louse infestation, as decisions around whether and when to apply treatment depend on an estimation of abundance.
Jaewoon Jeong   +4 more
doaj   +1 more source

Spatially correlated Poisson sampling [PDF]

open access: yes, 2012
A new method for sampling from a finite population that is spread in one, two or more dimensions is presented. Weights are used to create strong negative correlations between the inclusion indicators of nearby units.
Grafström, Anton, Anton Grafström
core   +1 more source

Introduction to Maxxam All-Season Passive Sampling System and Principles of Proper Use of Passive Samplers in the Field Study

open access: yesThe Scientific World Journal, 2001
Maxxam all-season passive sampling system (PASS) is introduced in this paper. The PASS can be used to quantitatively and accurately monitor SO2 , NO2, O 3, and H2 S in air in all weather conditions with flexible exposure times from several hours to ...
Hongmao Tang
doaj   +1 more source

Moving towards a Network of Autonomous UAS Atmospheric Profiling Stations for Observations in the Earth’s Lower Atmosphere: The 3D Mesonet Concept

open access: yesSensors, 2019
The deployment of small unmanned aircraft systems (UAS) to collect routine in situ vertical profiles of the thermodynamic and kinematic state of the atmosphere in conjunction with other weather observations could significantly improve weather forecasting
Phillip B. Chilson   +19 more
doaj   +1 more source

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