نتایج جستجو برای: evenness

تعداد نتایج: 1999  

Journal: :ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences 2014

Journal: :IOP Conference Series: Materials Science and Engineering 2021

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2021

Significance Identifying species assemblages that boost the provision of multiple ecosystem functions simultaneously (multifunctionality) is crucial to undertake effective restoration actions aiming at promoting biodiversity and high multifunctionality in a changing world. By disentangling effect traits on litter decomposition experiment, we show it possible identify across mixtures originating...

2000
Robert L. Griess

Given a rational lattice and suitable set of linear transformations, we construct a cousin lattice. Sufficient conditions are given for integrality, evenness and unimodularity. When the input is a Barnes-Wall lattice, we get multi-parameter series of cousins. There is a subseries consisting of unimodular lattices which have ranks 2d−1 ± 2d−k−1, for odd integers d ≥ 3 and integers k = 1, 2, · · ...

Journal: :محیط زیست طبیعی 0
زهرا نوری دانشجوی دکترای جنگلداری، دانشکده منابع طبیعی، دانشگاه تهران، ایران جهانگیر فقهی دانشیار گروه جنگلداری، دانشکده منابع طبیعی، دانشگاه تهران، ایران قوام الدین زاهدی امیری دانشیار گروه جنگلداری، دانشکده منابع طبیعی، دانشگاه تهران، ایران رامین رحمانی دانشیار گروه جنگلداری، دانشگاه گرگان، ایران

the aim of this study is to investigate the tree species' diversity in a region with no management planning and introduce the calculated indices as the norm for sustainability assessment. dbh of all tree individuals, and their stories were recorded in the inventory grid (75 m × 100 m) sample plots. subsequently, richness, evenness (simpson, smith & wilson) and heterogeneity (simpson, shann...

2013
Gözde Kizilates Murat Ersen Berberler Onur Ugurlu

In this paper, a solution method for classical fair division problem utilizing cut-and-choose protocol has been examined and a new method has been suggested in order to eliminate the deficiencies of that method. Furthermore, the problem has been generalized and mathematical models have been written according to oddness or evenness of the number of persons and solution techniques have been given...

Hamid Ahani, Hamid Jalilvand

Forests are biologically diverse systems, representing some of the richest biological areas on Earth. They offer a variety of habitats for plants, animals and micro-organisms. However, forest biodiversity is increasingly threatened as a result of deforestation, fragmentation, climate change and other stressors. Biodiversity is the variation of life forms within a given ecosystem, biome, or on t...

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