Results 11 to 20 of about 9,698 (163)

Ever since gompertz [PDF]

open access: yesDemography, 1997
AbstractIn 1825 British actuary Benjamin Gompertz made a simple but important observation that a law of geometrical progression pervades large portions of different tables of mortality for humans. The simple formula he derived describing the exponential rise in death rates between sexual maturity and old age is commonly referred to as the Gompertz ...
S J, Olshansky, B A, Carnes
openaire   +2 more sources

Potential autonomous vehicle ownership growth in Hungary using the Gompertz model

open access: yesProduction Engineering Archives, 2023
Autonomous Vehicles (AVs) are anticipated to bring forth a multitude of advantages for upcoming mobility.These potential benefits and many others vary substantially by the market share of AVs.
Alatawneh Anas, Torok Adam
doaj   +1 more source

Preliminary Observation of Biogas Production from a Mixture of Cattle Manure and Bagasse Residue in Different Composition Variations

open access: yesInternational Journal of Renewable Energy Development, 2023
The need of renewable energy is paramount important as it is expected to replace fossil energy. One of renewable energy commonly used for rural area is biomass-based energy.
H Hadiyanto   +6 more
doaj   +1 more source

Gompertz-power series distributions [PDF]

open access: yesCommunications in Statistics - Theory and Methods, 2015
In this paper, we introduce the Gompertz power series class of distributions which is obtained by compounding Gompertz and power series distributions. This distribution contains several lifetime models such as Gompertz-geometric, Gompertz-Poisson, Gompertz-binomial, and Gompertz-logarithmic distributions as special cases.
Jafari, Ali Akbar, Tahmasebi, Saeid
openaire   +2 more sources

Dinámica de crecimiento y curvas de extracción de nutrientes de Pennisetum sp. (Maralfalfa)

open access: yesRevista Mexicana de Ciencias Pecuarias, 2020
El crecimiento de una especie, así como la concentración y extracción de nutrientes en el forraje, se pueden conocer a través de modelos matemáticos. Se utilizaron las ecuaciones de Gompertz y Logistic para estudiar el crecimiento, un modelo potencial ...
Oscar López-Astilleros   +4 more
doaj   +1 more source

Performance, Growth Curves and Carcass Yield of Four Strains of Broiler Chicken [PDF]

open access: yesBrazilian Journal of Poultry Science, 2019
The objective of this study was to evaluate the performance, carcass yield and growth curves of different commercial strains of broiler chicken. 2400 day-old chicks, males and females of the Cobb500, RossAp95, Hubbard Flex and a new Francesa line were ...
BRF Nogueira   +6 more
doaj   +1 more source

Stability conditions of limit cycle for Gompertz Autoregressive model

open access: yesTikrit Journal of Pure Science, 2023
In this paper, we suggest Gompertz Autoregressive model by using the cumulative distribution function of Gompertz distribution and, the aim of this paper is studying and finding the stability conditions of a limit cycle for the Gompertz Autoregressive ...
Nezar E. Ali, Azher A. Mohammad
doaj   +1 more source

Generalized Gompertz - Generalized Gompertz Distribution

open access: yesJournal of Physics: Conference Series, 2019
In the present paper, we introduce a new generated family of continuous distributions based on generalized Gompertz distribution. Then generalized Gompertz - generalized Gompertz distribution is proposed as a special case of this new family. The probability density, cumulative distribution, reliability and hazard rate functions are introduced ...
M A A Boshi, S H Abid, N H Al-Noor
openaire   +1 more source

Comparison of Growth Patterns of COVID-19 Cases through the ARIMA and Gompertz Models. Case Studies: Austria, Switzerland, and Israel

open access: yesRambam Maimonides Medical Journal, 2020
On May 19, 2020, data confirmed that coronavirus 2019 disease (COVID-19) had spread worldwide, with more than 4.7 million infected people and more than 316,000 deaths.
Francisco Javier Diaz Perez   +5 more
doaj   +1 more source

The conformability of two equations for bacterial growth in pork

open access: yesCzech Journal of Food Sciences, 2002
Pork is now distributed as cut meat, which increases the chance of contamination with bacteria. The rate of bacterial growth can be expressed by an exponential function. In order to find how the number of contaminating bacteria increases, we compared two
M. Miyahara   +3 more
doaj   +1 more source

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