Results 1 to 10 of about 323,365 (265)

The Optimal Lattice Quantizer in Nine Dimensions [PDF]

open access: yesAnnalen Der Physik, 2021
AbstractThe optimal lattice quantizer is the lattice that minimizes the (dimensionless) second momentG. In dimensions 1 to 3, it has been proven that the optimal lattice quantizer is one of the classical lattices, and there is good numerical evidence for this in dimensions 4 to 8.
Erik Agrell, Bruce Allen
exaly   +5 more sources

Optimal Versus Equal Dimensions of Round Bales of Agricultural Materials Wrapped with Plastic Film—Conflict or Compliance?

open access: yesApplied Sciences, 2021
For the assumed bale volume, its dimensions (diameter, height), minimizing the consumption of the plastic film used for bale wrapping with the combined 3D method, depend on film and wrapping parameters.
Anna Stankiewicz
doaj   +3 more sources

Optimal taxation with multiple dimensions of heterogeneity

open access: yesJournal of Public Economics, 2021
This paper develops a general theory of optimal income taxation with multiple dimensions of agent heterogeneity. The main technical hurdle in developing this theory is the possibility that individuals have multiple optimal incomes. Using a perturbation approach, optimal tax formulas are derived that account for the possibility that individuals have ...
Katy Bergstrom
exaly   +3 more sources

Optimal dimensions and performance evaluation of a truncated spherical dielectric lens antenna at X-band frequencies. [PDF]

open access: yesPLoS ONE
This study presents the design and development of a truncated spherical dielectric lens antenna. The primary goal of this research is to significantly improve and optimize the directivity and beamwidth characteristics of the feed antenna by adjusting the
Syed Zeeshan Ali   +6 more
doaj   +2 more sources

Energetically optimal dimensions of parallelepiped-shaped industrial structures [PDF]

open access: yesE3S Web of Conferences, 2023
Technical structures with a parallelepiped form are frequently used in various areas of industry. For example, as fluid containers, ice and minerals piles, underground and surface storages and cooling chambers.
Galkin A.F., Pankov V.Yu.
doaj   +1 more source

Optimization of Gyrotron Resonator’s Dimensions [PDF]

open access: yesJournal of Telecommunications and Information Technology, 2021
This paper explains the procedure of determining the initial dimensions of a gyrotron resonator. In particular, the paper discusses which geometrical parameters impact the wave properties of the resonator. The solution is implemented using Matlab software and estimations are performed with the use of the SMath Studio ...
Nowak, Kacper, Dumbrajs, Olgierd
openaire   +3 more sources

Optimization of Invasive Weed for Optimal Dimensions of Concrete Gravity Dams [PDF]

open access: yesJournal of Soft Computing in Civil Engineering, 2022
Dam construction projects among the most extensive and most expensive projects are considered. It is always appropriate and optimal for such concrete structures to reduce the volume of concrete and consequently reduce construction costs is essential.
Vahed Ghiasi   +2 more
doaj   +1 more source

Statistical Optimization in High Dimensions [PDF]

open access: yesOperations Research, 2016
We consider optimization problems whose parameters are known only approximately, based on noisy samples. In large-scale applications, the number of samples one can collect is typically of the same order of (or even less than) the dimensionality of the problem.
Huan Xu 0001   +2 more
openaire   +2 more sources

An approach to the optimization of thin-walled cantilever open section beams [PDF]

open access: yesTheoretical and Applied Mechanics, 2007
An approach to the optimization of the thin-walled cantilever open section beams subjected to the bending and to the constrained torsion is considered. The problem is reduced to the determination of minimum mass, i.e.
Anđelić Nina, Milošević-Mitić Vesna
doaj   +1 more source

Gravity from thermodynamics: Optimal transport and negative effective dimensions

open access: yesSciPost Physics, 2023
We prove an equivalence between the classical equations of motion governing vacuum gravity compactifications (and more general warped-product spacetimes) and a concavity property of entropy under time evolution.
Giuseppe Bruno De Luca, Nicolò De Ponti, Andrea Mondino, Alessandro Tomasiello
doaj   +1 more source

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