Results 61 to 70 of about 9,698 (163)

Modeling the Number of COVID-19 Total Cases in Iran Using Gompertz and Logistic Growth Curves

Journal of Biostatistics and Epidemiology, 2021
Background and Aim:  The growth curve are time dependece regression models  which commonly are useful in describing the rapid growth of total cases or deaths in a pandemic situation Methods & Materials: The Gompertz and logistic functions are useful ...
Hossein Zamani
doaj  

Normalized Gompertz wavelets and their applications

International Journal of Wavelets, Multiresolution and Information Processing
In this paper we define, using the Stirling numbers of the second kind, the Gompertz wavelets and show their basic properties. In particular, we prove that the admissibility condition holds for them. We also compute the normalizing factors in the space of the square-integrable functions [Formula: see text] and present an explicit formula for them in ...
openaire   +2 more sources

Application of Gompertz-Poisson Distribution in LifetimeTheory

پژوهش‌های ریاضی, 2017
Gompertz-Poisson distribution is a three-parameter lifetime distribution with increasing, decreasing, increasing-decreasing and unimodal shape failure rate function and a composition of Gompertz and Poisson distributions cut at zero point that in this ...
Shahram Yaghoubzadeh Shahrestani
doaj  

Neutrosophic Gompertz Distribution: Applications in Analyzing Complex Environmental Datasets

International Journal of Computational Intelligence Systems
Many real-world problems are characterized by uncertainty, indeterminacy, vagueness, and ambiguity. In situations where the random variable has ambiguous values, classical probability distributions may not be effective.
Muhammad Saleem, Shakila Bashir, Ammara Tayyab, Muhammad Aslam, Mujahid Rasul   +4 more
doaj   +1 more source

Estimation of growth in intact grazing Holstein steers

Revista Colombiana de Ciencias Pecuarias, 2013
Summary Background: animal growth does not follow a linear pattern. Accordingly, fitted non-linear models are used to analyze the relationship between growth rate and age. Objective: to assess the ability of several mathematical models (Gompertz, Brody,
Raul Velásquez Vélez, Ricardo R Noguera, Sandra L Posada, Alvaro Hoyos Velásquez, Juan Manuel Cerón   +4 more
doaj  

Mono- and Polyauxic Growth Kinetics: A Semi-Mechanistic Framework for Complex Biological Dynamics. [PDF]

Bull Math Biol
Mockaitis G.
europepmc   +1 more source

Integrating biological and machine learning models for rainbow trout growth: Balancing accuracy and interpretability. [PDF]

PLoS One
Fulton L, Lyu P.
europepmc   +1 more source

Dynamic assessment of the ecological value of cultivated land based on the Gompertz curve model: A case study of Lezhi County, China. [PDF]

PLoS One
Yuan L, Chen H, Xu J, Wang H.
europepmc   +1 more source

Real-time prediction of influenza and respiratory syncytial virus epidemics in primary care using the Gompertz model. [PDF]

Sci Rep
Perramon-Malavez A, Ye Q, López D, Montañola-Sales C, Alonso S, Álvarez E, Soriano-Arandes A, Prats C.   +7 more
europepmc   +1 more source

Predicting sugar beet leaf area index: evaluating performance of double sigmoid functions under different irrigation and plant density scenarios. [PDF]

Sci Rep
Shirazi SHM, Razzaghi F, Shabani A, Sepaskhah AR, Khozaei M.   +4 more
europepmc   +1 more source