نتایج جستجو برای: we can recognize ancient environmental

تعداد نتایج: 5973958  

2007
Thorsten Wagener

Received 6 July 2007 Accepted 9 July 2007 Natural and anthropogenic changes constantly impact the environment surrounding us. Available moisture and energy change due to variability and shifts in climate, and the separation of precipitation into different pathways on the land surface are altered due to wildfires, beetle infestations, urbanization, deforestation, invasive plant species, etc. Man...

Journal: :European Journal of Translational and Clinical Medicine 2021

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1390

over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده برق و الکترونیک 1390

there are many approaches for solving variety combinatorial optimization problems (np-compelete) that devided to exact solutions and approximate solutions. exact methods can only be used for very small size instances due to their expontional search space. for real-world problems, we have to employ approximate methods such as evolutionary algorithms (eas) that find a near-optimal solution in a r...

Journal: :The Journal of Indonesia Sustainable Development Planning 2021

Journal: :Frontiers in Environmental Science 2022

OPINION article Front. Environ. Sci., 24 March 2022Sec. Environmental Citizen Science https://doi.org/10.3389/fenvs.2022.874559

Journal: :Proceedings of the National Academy of Sciences 1998

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