noconstant suppress constant term distribution(exponential) exponential survival distribution distribution(gompertz) Gompertz survival distribution distribution(loglogistic) loglogistic survival distribution distribution(llogistic) synonym for distribution(loglogistic) distribution(weibull) Weibull survival distribution distribution(lognormal) lognormal survival distribution distribution(lnorma...

In this communication, based upon the deterministic Gompertz law of cell growth, a stochastic model in tumour growth is proposed. This model takes account of both cell ssion and mortality too. The corresponding density function of the size of the tumour cells obeys a functional Fokker-Planck equation which can be solved analytically. It is found that the density function exhibits an interesting...

This study reports simulation of cumulative biogas production data from thermophilic digester loaded with mixed fruit and vegetable wastes co-digested slaughterhouse at 55 ℃ 6.8 -7.2 operation temperature pH respectively. The experimental was fitted to the linear, exponential, Gaussian, logistic modified Gompertz kinetic models. results obtained showed that generation rate slow lag phase expone...

In this paper we have proven uniqueness theorems for estimation of the age-dependent parameter α in the Gompertz survival model with a mortality deceleration rate, in the absence of age-specific mortality data. We obtained estimations dependent on and uniform in the population size N . c © 2007 Elsevier Ltd. All rights reserved.

Water hyacinth (Eichhornia crassipes), an invasive aquatic weed with large biomass production is of socio-economic and environmental concern in fresh water bodies such as the Lake Victoria East Africa. Efforts towards its control removal can be complemented by biogas for use energy source. The co-digestion (WH) ruminal slaughterhouse waste (RSW) has potential to improve from WH through collatio...

The current study was carried out to analyze the trend and forecast in area, production productivity of mango crop Karnataka. It determined by using secondary data for period 18 years (2000-01 2017-18) collected from Directorate Economics Statistics, To estimate its next 5 years, up 2022-23, linear, quadratic, exponential, logistic Gompertz models were fitted best-fitted model selected based on...

An ensemble formulation for the Gompertz growth function within the framework of statistical mechanics is presented, where the two growth parameters are assumed to be statistically distributed. The growth can be viewed as a self-referential process, which enables us to use the Bose-Einstein statistics picture. The analytical entropy expression pertain to the law can be obtained in terms of the ...

In Demography and modelling mortality (or failure) data the univariate Makeham-Gompertz is well-known for its extension of exponential distribution. Here, a bivariate class of Gompertz--Makeham distribution is constructed based on random number of extremal events. Some reliability properties such as ageing intensity, stress-strength based on competing risks are given. Also dependence properties...