Results 21 to 30 of about 2,070,030 (304)

Research on the Influence of Sampling Methods for the Accuracy of Web Services QoS Prediction

open access: yesIEEE Access, 2019
In recent years, as the number of Web services, increases dramatically, the personalized Web service recommendation has become a hot topic in both academia and industry.
Jun Li, Jian Lin
doaj   +1 more source

A hardware prototype of wideband high‐dynamic range analog‐to‐digital converter

open access: yesIET Circuits, Devices and Systems, 2023
Key parameters of analog‐to‐digital converters (ADCs) are their sampling rate and dynamic range. Power consumption and cost of an ADC are directly proportional to the sampling rate; hence, it is desirable to keep it as low as possible.
Satish Mulleti   +5 more
doaj   +1 more source

COVID-19: Test, Test and Test

open access: yesMedical Sciences, 2020
A new virus was identified in late December 2019 when China reported the first cases of pneumonia in Wuhan, and a global COVID-19 pandemic followed. The world was not late to respond, with a number of sweeping measures ranging from social distancing ...
Fatima A Saleh, Aleen Sleem
doaj   +1 more source

Roving Divers Surveying Fish in Fixed Areas Capture Similar Patterns in Biogeography but Different Estimates of Density When Compared With Belt Transects

open access: yesFrontiers in Marine Science, 2020
Fish abundance and diversity are core measurements taken by many nearshore marine monitoring projects. The most common approaches for counting fish include belt transects and timed counts by roving divers, each with its own limitations.
A. Rassweiler   +9 more
doaj   +1 more source

Sampling plan and methodological aspects: a household healthcare survey in Piauí

open access: yesRevista de Saúde Pública, 2021
OBJECTIVE To describe the methodological aspects of the Piauí home healthcare survey (ISAD-PI) and assess the relation between sampling plan, precision, and design effects, assuming that population health surveys are relevant instruments for health ...
Lays Arnaud Rosal Lopes Rodrigues   +13 more
doaj   +2 more sources

An Approach to Natural Sampling Using a Digital Sampling Technique for SPWM Multilevel Inverter Modulation

open access: yesEnergies, 2019
This paper introduces an approach that applies a digital sampling technique for a sinusoidal pulse width modulation (SPWM) multilevel inverter modulation that reduces the total harmonic contents in the output voltage compared to that of classical regular
Mauricio Muñoz-Ramírez   +3 more
doaj   +1 more source

Halton Sampling for Image Registration Based on Mutual Information

open access: yes, 2008
Mutual information is a widely used similarity measure for aligning multimodal medical images. At its core, it relies on the computation of a discrete joint histogram, which itself requires image samples for its estimation.
Michel Bierlaire   +5 more
core   +1 more source

Population Density of Certain Piercing-Sucking Insects Infesting Wheat and its Associated Coccinellid Predator in Relation to Sampling Methods [PDF]

open access: yesJournal of Plant Protection and Pathology, 2016
Population trends of certain piercing-sucking insects infesting wheat i.e. Thrips sp L., Empoasca spp and  its associated coccinellid predator Coccinella undecimpunctata was determined by using yellow sticky traps (YST), direct count and sweep net ...
A. Abd El-Raheem, A. Salem, M. Amro
doaj   +1 more source

Bayesian methods for hierarchical distance sampling models

open access: yes, 2014
Cornelia S. Oedekoven was supported by a studentship jointly funded by the University of St Andrews and EPSRC (EPSRC grant EP/C522702/1), through the National Centre for Statistical Ecology.The few distance sampling studies that use Bayesian methods ...
Oedekoven, Cornelia Sabrina   +11 more
core   +1 more source

Comparação de métodos de amostragem na Floresta Ombrófila Densa – Parque Estadual Carlos Botelho/SP-Brasil. Comparison of sampling methods in the Dense Ombrophylous Forest, Carlos Botelho State Park, São Paulo, Brazil. [PDF]

open access: yesRevista do Instituto Florestal, 2005
Foram comparados três métodos deamostragem (parcelas, quadrantes e relascopia),empregados no levantamento do componentearbóreo de dois trechos da Floresta Ombrófila Densa,no Parque Estadual Carlos Botelho, localizado naregião sul do Estado de São Paulo ...
Antonio Cecílio DIAS   +1 more
doaj  

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