Search results for "Threshold limit value"

showing 3 items of 23 documents

Practical thresholds to distinguish erosive and rill rainfall events

2019

Abstract In this paper, 1017 rainfall events from 2008 to 2017 are used to identify the rainfall threshold that produces upland erosion at the Masse (central Italy) and Sparacia (southern Italy) experimental stations. The rainfall events are classified into three classes: non-erosive, interrill-only and rill. The threshold values for separating as correctly as possible the erosive rains (case I) and the rill rains (case II) are derived solely from the hyetograph. Each threshold value is obtained by imposing that the long-term erosivity of the events above the threshold is equal to the long-term erosivity of all erosive events (case I) or only rill events (case II). The performances of selec…

Water erosionThreshold limit valueRainfall patternSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliRUSLEUSLETruncation (statistics)Interrill; Rainfall erosivity; Rainfall hyetograph; Rainfall pattern; Rainfall thresholds; RUSLE; Soil erosion; Soil loss; USLERainfall hyetographWater Science and TechnologyHydrologySoil logeographyRainfall thresholdsgeography.geographical_feature_categoryInterrillRainfall erosivityRainfall thresholdSoil lossRillHyetographSoil erosionErosionEnvironmental scienceScale (map)Predictive modellingJournal of Hydrology
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Occupational hygiene in a Finnish drum composting plant

2005

Bioaerosols (microbes, dust and endotoxins) and volatile organic compounds (VOCs) were determined in the working air of a drum composting plant treating source-separated catering waste. Different composting activities at the Oulu drum composting plant take place in their own units separated by modular design and constructions. Important implication of this is that the control room is a relatively clean working environment and the risk of exposure to harmful factors is low. However, the number of viable airborne microbes was high both in the biowaste receiving hall and in the drum composting hall. The concentration (geometric average) of total microbes was 21.8 million pcs/m3 in the biowaste…

business.product_categoryThreshold limit valueeducationIndoor bioaerosolAir pollutionDrummedicine.disease_causecomplex mixturesOccupational hygieneOccupational ExposuremedicineHumansOrganic ChemicalsRespiratorWaste Management and DisposalFinlandOccupational HealthAerosolsVolatilisationWaste managementfungiDustPulp and paper industryRefuse DisposalEndotoxinsWaste treatmentAir Pollution IndoorOdorantsEnvironmental scienceVolatilizationbusinesspsychological phenomena and processesWaste Management
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The stability of color discrimination threshold determined using pseudoisochromatic test plates

2014

Congenital red-green color vision deficiency is one of the most common genetic disorders. A previously printed set of pseudoisochromatic plates (KAMS test, 2012) was created for individual discrimination threshold determination in case of mild congenital red-green color vision deficiency using neutral colors (colors confused with gray). The diagnostics of color blind subjects was performed with Richmond HRR (4th edition, 2002) test, Oculus HMC anomaloscope, and further the examination was made using the KAMS test. 4 male subjects aged 20 to 24 years old participated in the study: all of them were diagnosed with deuteranomalia. Due to the design of the plates, the threshold of every subject …

medicine.medical_specialtyColor differenceColor visionbusiness.industryThreshold limit valueAudiologyPositive correlationColor discriminationAnomaloscopeOpticsmedicineDiscrimination thresholdbusinessMathematicsError scoreSPIE Proceedings
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