نتایج جستجو برای: existing models
تعداد نتایج: 1211725 فیلتر نتایج به سال:
soil moisture retention curve (smrc) is an important soil property which expresses reaction between matric potential and moisture of soil. direct measurement of soil matric potential and moisture is labour- and time-consuming. in order to prevail this problem, indirect methods are used for smrc prediction. pedotransfer functions (ptfs) are one of these indirect methods. this study was carried o...
In the current technological environment, different entities engage in intricate cyber security approaches order to counter damages and disruptions web-based systems. The design of protocols relies on guarantee that attacks are prevented Prevention detection using techniques such as access control tools, encryption firewalls present limitations full protection Furthermore, despite sophisticatio...
By existing censor and skewness in survival data, some models such as weibull are used to analyzing survival data. In addition, parametric and semiparametric models can be obtained from baseline hazard function of Cox model to fit to survival data. However these models are popular because of their simple usage but do not consider unknown risk factors, that's why cannot introduce the be...
Some scientists are interesting to study in area of harvested ecological modelling. The harvested population dynamics is more realistic than other ecological models. In the present paper, some of the Lotka-Volterra predator-prey models have been considered. In the said models, existing species are harvested by constant or variable growth rates. The behavior of their solutions has been analyzed ...
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