Results 21 to 30 of about 30,474 (270)
Energies, 2020 A simple yet accurate photovoltaic (PV) performance curve as a function of satellite-based solar irradiation is necessary to develop a PV power forecasting model that can cover all of South Korea, where more than 35,000 PV power plants are currently in ...
Alba Vilanova +3 more
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Some general Gompertz and Gompertz-Makeham life expectancy models
Analele Universitatii "Ovidius" Constanta - Seria Matematica, 2022 Abstract Life expectancy models are highly important, as they indicate the populations health. The present models consider several types of factors, and by analyzing them we extend the formulae to new, mixed types in order to create particular representations that are beneficial for creating future results and estimations.
openaire +2 more sources
Mathematics, 2020 In this paper, we study a new family of Gompertz processes, defined by the power of the homogeneous Gompertz diffusion process, which we term the powers of the stochastic Gompertz diffusion process.
Eva María Ramos-Ábalos +2 more
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A multistage Gompertz life‐cycle model applied to threatened Chinook salmon
Aquaculture, Fish and Fisheries, 2022 Because the Gompertz model has a long history of use as a population model, we analyzed its properties as a multistage stock‐recruitment model. We found that if a life‐cycle model is a sequence of linked Gompertz stock‐recruitment models at each life ...
Richard A. Hinrichsen +1 more
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Influence of aggregate chemical composition on the demulsification rate of emulsified asphalt
Frontiers in Materials, 2022 Efficient demulsification is vital for the application of emulsified asphalt in road construction. In this paper, the effects of the main chemical components of the aggregates (CaCO3, MgO, Fe2O3, SiO2, Al2O3) on the demulsification process of emulsified ...
Wei Tan +6 more
doaj +1 more source
The Journal of Poultry Science, 2021 This study aimed to evaluate the differences between the growth patterns of large- and normal-sized Japanese quail strains and their F1 progeny, by fitting their growth parameter values to five nonlinear regression growth models (Weibull, Logistic ...
Mohammad I. Haqani +6 more
doaj +1 more source
Modified Gompertz sigmoidal model removing fine-ending of grain-size distribution
Open Geosciences, 2019 Because of the laboratory operating, the fineending of grain-size distribution (GSD) are simply combined as one point, which results in the information loss of the fine and very-fine clastic particles, and affects the geological parameters calculation of
Yuan Rui +3 more
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Finding the Growth Rate of a Tumor
Undergraduate Journal of Mathematical Modeling: One + Two, 2020 The Gompertz method is used to analyze the growing glioblastoma data and estimate how accurate the results of growth over time are. The Gompertz curve is expressed as V(t) = αe-βe-γt. The data from the tumor is graphed in Excel along with the values from
Christine Staat
doaj +1 more source
Determinants of the population growth of the West Nile virus mosquito vector Culex pipiens in a repeatedly affected area in Italy [PDF]
, 2014 Background The recent spread of West Nile Virus in temperate countries has raised concern. Predicting the likelihood of transmission is crucial to ascertain the threat to Public and Veterinary Health.
Bonfanti, L. +5 more
core +1 more source
Improvement of biomethane potential of sewage sludge anaerobic co-digestion by addition of “sherry-wine” distillery wastewater [PDF]
, 2020 Co-digestion of sewage sludge (SS) with other unusually treated residues has been reported as an efficient method to improve biomethane production. In this work, Sherry-wine distillery wastewater (SWDW) has been proposed as co-substrate in order to ...
Agabo García, Cristina +3 more
core +3 more sources