Results 21 to 30 of about 542,162 (354)
The convex hull swampland distance conjecture and bounds on non-geodesics [PDF]
Journal of High Energy Physics, 2020 The Swampland Distance Conjecture (SDC) restricts the geodesic distances that scalars can traverse in effective field theories as they approach points at infinite distance in moduli space.
J. Calderón-Infante +2 more
semanticscholar +1 more source
Estimating 3D Green Volume and Aboveground Biomass of Urban Forest Trees by UAV-Lidar
Remote Sensing, 2022 Three dimensional (3D) green volume is an important tree factor used in forest surveys as a prerequisite for estimating aboveground biomass (AGB). In this study, we developed a method for accurately calculating the 3D green volume of single trees from ...
Lv Zhou +7 more
doaj +1 more source
AN EFFICIENT ALGORITHM FOR THE CONVEX HULL OF PLANAR SCATTERED POINT SET [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012 Computing the convex hull of a point set is requirement in the GIS applications. This paper studies on the problem of minimum convex hull and presents an improved algorithm for the minimum convex hull of planar scattered point set.
Z. Fu, Y. Lu
doaj +1 more source
Steaming on Convex Hulls [PDF]
Interfaces, 2007 This is a sea story about using a simple classroom example to save a great deal of money, as well as to convince beginning Postgraduate Naval School operations research students—experienced, skeptical military officers—that mathematical analysis can yield immediate results.
Kline, Jeffrey E. +3 more
openaire +3 more sources
Applied Sciences, 2021 Procambarus clarkii was found to have excellent anti-wear performance against abrasive materials. To improve the wear resistance performance of the soil-engaging component of agricultural machinery, in this study, the micro-thorn and convex hull coupled ...
Qingzhu Zhang +4 more
doaj +1 more source
On Sumsets and Convex Hull [PDF]
Discrete & Computational Geometry, 2014 One classical result of Freimann gives the optimal lower bound for the cardinality of A+A if A is a d-dimensional finite set in the Euclidean d-space. Matolcsi and Ruzsa have recently generalized this lower bound to |A+kB| if B is d-dimensional, and A is contained in the convex hull of B.
Oriol Serra +2 more
openaire +3 more sources
Generalized Convex Hull Pricing for the AC Optimal Power Flow Problem
IEEE Transactions on Control of Network Systems, 2020 We study an abstract myopic electricity market subject to general nonconvex power flow models and convex generator models (without discrete commitment variables) in a setting where there may be no market equilibrium that guarantees revenue adequacy of ...
Manuel V. P. Garcia +2 more
semanticscholar +1 more source
Micro Water–Energy Nexus: Optimal Demand-Side Management and Quasi-Convex Hull Relaxation [PDF]
IEEE Transactions on Control of Network Systems, 2018 In some countries and regions, water distribution and treatment consume a considerable amount of electric energy. This paper investigates the water network's potential ability to provide demand response services to the power grid for the management of ...
Qifeng Li +3 more
semanticscholar +1 more source
Randomized Incremental Convex Hull is Highly Parallel
ACM Symposium on Parallelism in Algorithms and Architectures, 2020 The randomized incremental convex hull algorithm is one of the most practical and important geometric algorithms in the literature. Due to its simplicity, and the fact that many points or facets can be added independently, it is also widely used in ...
G. Blelloch +3 more
semanticscholar +1 more source
The convex hull of the run-and-tumble particle in a plane [PDF]
Journal of Statistical Mechanics: Theory and Experiment, 2019 We study the statistical properties of the convex hull of a planar run-and-tumble particle (RTP), also known as the ‘persistent random walk’, where the particle/walker runs ballistically between tumble events at which it changes its direction randomly ...
A. Hartmann +3 more
semanticscholar +1 more source