منابع مشابه
Exact solutions of (3 +1)-dimensional nonlinear evolution equations
In this paper, the kudryashov method has been used for finding the general exact solutions of nonlinear evolution equations that namely the (3 + 1)-dimensional Jimbo-Miwa equation and the (3 + 1)-dimensional potential YTSF equation, when the simplest equation is the equation of Riccati.
متن کاملE Ecosystem Modeling toward Ecosystem Modeling on Computing Grids
of challenges. Much of classical ecological theory originates from very simple differential equations in which a single variable represents population densities. Researchers typically analyze the solutions mathematically and then compare them to abundance estimates from field or lab observations. Although highly influential in ecological theory, the models’ aggregated form is particularly diffi...
متن کاملEcosystem Evolution and Conservation
A major problem in conservation biology is to decide the target of conservation: should conservation efforts aim to preserve species or ecosystems? The traditional approach has, by necessity, focused on particular species threatened by extinction. With the increasing attention on preserving biodiversity at large, for which the species-by-species approach falls short, a trend is now emerging tha...
متن کاملModular ecosystem modeling
The modular ecosystem modeling approach was used to create a flexible landscape model structure that is easy to modify and extend for particular case studies and applications. The Library of Hydro Ecological Modules (LHEM; http://iee.umces.edu/LHEM) includes modules that describe hydrologic processes, nutrient cycling, vegetation growth, decomposition, etc., both locally and spatially. LHEM is ...
متن کاملAn Ecosystem Model of Technology Evolution
We propose a new conceptual model for understanding technological evolution that identifies the impact of social (e.g., market, economic, and political forces) and technological forces. We build on theories from technological forecasting, technology evolution, and innovation research to develop the concept of a technology ecosystem. By considering the influence of social forces, technical force...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Environmental safety and natural resources
سال: 2019
ISSN: 2616-2121,2411-4049
DOI: 10.32347/2411-4049.2019.2.18-29