Results 81 to 90 of about 58,230 (252)
The triangle and the open triangle [PDF]
arXiv, 2009 We show that for percolation on any transitive graph, the triangle condition implies the open triangle condition.
arxiv
Cabri's role in the task of proving within the activity of building part of an axiomatic system [PDF]
, 2007 We want to show how we use the software Cabri, in a Geometry class for preservice mathematics teachers, in the process of building part of an axiomatic system of Euclidean Geometry.
Camargo, Leonor +2 more
core
PLANTS, PEOPLE, PLANET, EarlyView.Maize plays a key role in agricultural profitability and food security on six continents. Successful efforts to breed higher‐yielding maize varieties depend on replicated yield trials in many environments. Capturing in‐season data can help improve and accelerate the development of regionally adapted hybrids, but collecting these data can be impractical
Nikee Shrestha +16 more
wiley +1 more source
Spatial Analyses for Fine Woody Debris Volume Stock in the Hyrcanian Research Forest of Kheyrood-Kenar [PDF]
بومشناسی جنگلهای ایرانExtended Abstract Background: In the Hyrcanian forests, fine woody debris (FWDs) plays a significant role in providing ecological services. However, their importance is often overlooked in the management and executive sectors. Based on the sustainability
Ali Asghar Vahedi +5 more
doaj
Periodic Billiards in Isosceles Triangles [PDF]
arXiv, 2013 Any periodic trajectory on an isosceles triangle gives rise to a periodic trajectory on a right triangle obtained by identifying the halves of the original triangle. We examine the relationship between periodic trajectories on isosceles triangles and the trajectories on right triangles obtained in this manner, and the consequences of this relationship ...
arxiv
Quarterly Journal of the Royal Meteorological Society, EarlyView.This study proposes an approach to account for the spatial and temporal variability in the contribution of surface emissivity error in the data assimilation system by including the surface emissivity as an analysis variable and representing its errors in the ensemble‐based background error covariances matrix within an idealized ensemble‐variational ...
Zheng Qi Wang, Mark Buehner, Yi Huang
wiley +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.The evolution of wind gusts is difficult to observe because gusts are short‐lived phenomena that can originate at higher altitudes. During the Field Experiment on Sub‐mesoscale Spatio‐Temporal Variability in Lindenberg (FESSTVaL), novel ground‐based remote‐sensing methodologies were applied to measure wind with Doppler lidars in order to provide the ...
Julian Steinheuer +2 more
wiley +1 more source
A little noticed right triangle [PDF]
arXiv, 2008 Given a right triangle ABC, with the ninety degree angle at A; consider the triangle O1OO2.Where the point O is the midpoint of the hypotenuseBC(and so the center of the triangle ABC's circumcircle), the point O1 being the triangle AOB's circumcenter, and the point O2 being the triangle AOC circumcenter.
arxiv
Quarterly Journal of the Royal Meteorological Society, EarlyView.This study analyzes the impact of orographic drag on the lower atmosphere over moderately complex terrain using high‐resolution ICON simulations. Numerical simulations explore the effects of parametrizations over moderately complex terrain near the Perdigao experiment site and the Serra da Estrela mountain range by comparing km‐ and 100‐m‐scale ...
Julian Quimbayo‐Duarte +3 more
wiley +1 more source
Subdivision by bisectors is dense in the space of all triangles [PDF]
arXiv, 2010 Starting with any nondegenerate triangle we can use a well defined interior point of the triangle to subdivide it into six smaller triangles. We can repeat this process with each new triangle, and continue doing so over and over. We show that starting with any arbitrary triangle, the resulting set of triangles formed by this process contains triangles ...
arxiv