Results 71 to 80 of about 4,195,484 (202)

Improvement of Text Dependent Speaker Identification System Using Neuro-Genetic Hybrid Algorithm in Office Environmental Conditions [PDF]

open access: yes, 2009
In this paper, an improved strategy for automated text dependent speaker identification system has been proposed in noisy environment. The identification process incorporates the Neuro-Genetic hybrid algorithm with cepstral based features.
Islam, Md. Rabiul, Rahman, Md. Fayzur
core   +1 more source

Composition and Source of Perfluorinated Compounds in Soil and Waters from the Rural Areas in Eastern China

open access: yesYankuang ceshi, 2015
At present, little research on perfluorinated compounds (PFCs) has been carried out in rural areas. To better determine the pollution level and the geographical distribution of PFC in rural areas, soils, surface waters, and groundwaters were collected ...
CHEN Shu   +8 more
doaj   +1 more source

A Method for Neuronal Source Identification

open access: yes, 2013
Multi-sensor microelectrodes for extracellular action potential recording have significantly improved the quality of in vivo recorded neuronal signals.
Lee, Chang Won   +4 more
core  

Identifying Key Potential Source Areas for Ambient Methyl Mercaptan Pollution Based on Long-Term Environmental Monitoring Data in an Industrial Park

open access: yesAtmosphere, 2018
Precise source identification for ambient pollution incidents in industrial parks were often difficult due to limited measurements. Source area analysis method was one of the applicable source identification methods, which could provide potential source ...
Yujie Liu   +4 more
doaj   +1 more source

Radial cancellation in spinning sound fields [PDF]

open access: yes, 2010
The radiating part of a circular acoustic source is determined on the basis of an exact analysis of the radiation properties of a source with angular dependence $\exp \J n\theta$ and arbitrary radial dependence.
Carley, Michael
core  

Chasing the second gamma-ray bright isolated neutron star: 3EG J1835+5918/RX J1836.2+5925 [PDF]

open access: yes, 2002
The EGRET telescope aboard NASAs Compton GRO has repeatedly detected 3EG J1835+5918, a bright and steady source of high-energy gamma-ray emission with no identification suggested until recently.
Brazier, K. T. S.   +5 more
core   +1 more source

Comprehensive Risk Evaluation of Perfluoroalkyl Substance Pollution in Urban Riverine Systems: Ecotoxicological and Human Health Perspectives

open access: yesToxics
This study investigated the spatiotemporal distribution of perfluoroalkyl substances (PFASs) in the Daku River, Taoyuan, with a particular focus on source apportionment and associated ecological and human health risks.
Ferlian Vida Satriaji   +7 more
doaj   +1 more source

Seasonal Levels, Sources, and Health Risks of Heavy Metals in Atmospheric PM2.5 from Four Functional Areas of Nanjing City, Eastern China

open access: yesAtmosphere, 2019
Aerosol pollution is a serious environmental issue, especially in China where there has been rapid urbanization. To identify the intra-annual and regional distributions of health risks and potential sources of heavy metals in atmospheric particles with ...
Lichun Wu   +7 more
doaj   +1 more source

Insight into the Formation of Winter Black Carbon and Brown Carbon over Xi’an in Northwestern China

open access: yesToxics
This study evaluates the effectiveness of air pollution control measures in Xi’an, China, by investigating long-term changes in the concentrations, optical properties, and sources of black carbon (BC) and brown carbon (BrC).
Dan Li   +6 more
doaj   +1 more source

A Data-Based Framework for Identifying a Source Location of a Contaminant Spill in a River System with Random Measurement Errors

open access: yesSensors, 2019
This study addresses the problem of identifying the source location of a contaminant spill in a river system when a sensor network returns observations containing random measurement errors.
Jun Hyeong Kim   +2 more
doaj   +1 more source

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