نتایج جستجو برای: clumped
تعداد نتایج: 1053 فیلتر نتایج به سال:
Two computationally simple forms of dead reckoning were implemented in a physical robot (Khepera). The precision of homing was compared between both strategies for various environments in which obstacles were distributed in four different ways: regular, at random, clumped, and with walls. Counter intuitively, the computational more complex strategy did not perform better in general. Both strate...
Plant growth and development can be influenced by mutualistic and non-mutualistic microorganisms. We investigated the ability of the ericoid endomycorrhizal fungus Oidiodendron maius to influence growth and development of the non-host plant Arabidopsis thaliana. Different experimental setups (non-compartmented and compartmented co-culture plates) were used to investigate the influence of both s...
In the tropics, geochemical records from stalagmites have so far mainly been used to qualitatively reconstruct changes in precipitation, but several new methods to reconstruct past temperatures from stalagmite material have emerged recently: i) liquidevapor homogenization of fluid inclusion water ii) noble gas concentrations in fluid inclusion water, iii) the partitioning of oxygen isotopes bet...
It is so important to apply suitable methods to have a reliable estimation of the spatial distribution of trees. This research was aimed to determine and evaluate the spatial pattern of five species by distance- and density-based indices (Quercus brantii, Acer moncepesulanum, Crataegus aronia, Pistacia atlantica & Amygdalus lycioides) in the Kalkhani Forest in Koudasht Lorestan province, Iran. ...
Three measures of clumpiness of complex networks are introduced. The measures quantify how most central nodes of a network are clumped together. The assortativity coefficient defined in a previous study measures a similar characteristic, but accounts only for the clumpiness of the central nodes that are directly connected to each other. The clumpiness coefficient defined in the present paper al...
Restoration of degraded dunes through revegetation native dune building species is critical to preserve multiple ecosystem services (i.e., coastal protection, habitat). As exhibit high levels abiotic stress, it likely that facilitative interactions among plants occur, reducing stress caused by harsh conditions, and benefiting restoration efforts. The research was determine how plant spatial arr...
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