forager
发表于 2025-3-26 22:49:49
A Two Population Threshold Model,We consider now a more complicated model involving two populations and an infection which is communicated between them. An example would be males and females as the populations and a venereal disease, or mosquito and man as the populations and malaria as the disease.
Adj异类的
发表于 2025-3-27 04:56:48
A Simple Epidemic Model with Permanent Removal,all group of individuals who have a communicable infection being inserted into a large population of individuals capable of “catching” the disease. Then an attempt is made to describe the spread of the infection in the larger group To do this, certain assumptions are required to describe the charact
Lasting
发表于 2025-3-27 06:20:29
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FLAT
发表于 2025-3-27 09:30:55
A Threshold Model,ear how one would expect to know this function. In this section we add a phenomenon to the model, a threshold effect, which yields the delay as a function of I(t). In order to allow for variations in the infection rate, we now allow r, of the previous models, to be a function r(t). For example, it m
perimenopause
发表于 2025-3-27 16:27:58
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背心
发表于 2025-3-27 19:34:19
A Model with Age Dependence and an Open Population,act balance. In this section a special case of a model of F. Hoppensteadt is described in which these factors are allowed to vary and a further complication is permitted in the model in that age dependent rates of exposure, virility, etc., are also allowed. In fact, two types of age dependence will
Enliven
发表于 2025-3-28 01:28:45
Some Simple Control Aspects,ly described models, a large outbreak of the Infection is predicted. There are two immediate possible courses of action — vaccination and quarantine. In the context of the models, vaccination is taking an individual from susceptible class and putting him in the removed class (or a special class) wit
钉牢
发表于 2025-3-28 04:21:07
Peter H. Cole,Damith C. Ranasinghe ensure positive and bounded cable tensions in under constrained planar two-degree-of-freedom translational cable robots. The hybrid (serial/parallel) topology of the investigated robot is general enough to ensure wide applicability of the proposed trajectory planning method, which translates the us
d-limonene
发表于 2025-3-28 07:15:12
Ch. Lentza-Rizose-scale investment in the built environment and infrastructure. From this process, the establishment of new towns and the construction of ambitious government-sponsored projects became common strategies of local authorities to stimulate economic growth, social stability and cultural development. Owi
growth-factor
发表于 2025-3-28 12:08:19
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