Results 11 to 20 of about 4,114,836 (337)

A Genetic Algorithm-Enhanced Sensor Marks Selection Algorithm for Wavefront Aberration Modeling in Extreme-UV (EUV) Photolithography

open access: yesInformation, 2023
In photolithographic processes, nanometer-level-precision wavefront-aberration models enable the machine to be able to meet the overlay (OVL) drift and critical dimension (CD) specifications.
Aris Magklaras   +4 more
doaj   +1 more source

Packing Oblique 3D Objects

open access: yesMathematics, 2020
Packing irregular 3D objects in a cuboid of minimum volume is considered. Each object is composed of a number of convex shapes, such as oblique and right circular cylinders, cones and truncated cones.
Alexander Pankratov   +2 more
doaj   +1 more source

Optimal Crowdfunding Design [PDF]

open access: yesSSRN Electronic Journal, 2014
Trabajo presentado en la 43rd EARIE (European Association for Research in Industrial Economics) Annual Conference, organizada por la Nova School of Business and Economics (Nova SBE) en Lisboa del 26 al 28 de agosto de 2016 We characterize optimal reward-based crowdfunding where production is contingent on an aggregate funding threshold.
Matthew Ellman, Sjaak Hurkens
openaire   +8 more sources

Learning From Older Adults to Promote Independent Physical Activity Using Mobile Health (mHealth)

open access: yesFrontiers in Public Health, 2021
Background: Healthy aging is critically important for several reasons, including economic impact and quality of life. As the population of older adults rapidly increases, identifying acceptable ways to promote healthy aging is a priority.
Camille Nebeker, Zvinka Z. Zlatar
doaj   +1 more source

An Optimized Covering Spheroids by Spheres

open access: yesApplied Sciences, 2020
Covering spheroids (ellipsoids of revolution) by different spheres is studied. The research is motivated by packing non-spherical particles arising in natural sciences, e.g., in powder technologies.
Alexander Pankratov   +3 more
doaj   +1 more source

Mechanical Fracture of Aluminium Alloy (AA 2024-T4), Used in the Manufacture of a Bioproducts Plant

open access: yesMetals, 2023
Aluminium alloy (AA2024-T4) is a material commonly used in the aerospace industry, where it forms part of the fuselage of aircraft and spacecraft thanks to its good machinability and strength/weight ratio.
Luis Fabian Urrego   +3 more
doaj   +1 more source

Radial Gradient Pressure Effects on Flow Behavior in a Dual Volute Turbocharger Turbine

open access: yesApplied Sciences, 2018
The pressure gradient in the dual volute radial turbocharger turbines is the primary source of the vortices’ formation in rotor passages. The effects of the upstream non-uniform flow conditions on the development of secondary flows are not well known. In
Azadeh Sajedin   +2 more
doaj   +1 more source

D-optimal design of experiments applied to 3D high-performance concrete printing mix design

open access: yesMaterials & Design, 2022
The development of 3D printable cement-based materials is a complex process with a variety of competing objectives. The compositions formed are far more complex than in conventional concrete, increasing the difficulty in designing mixtures for 3D ...
Vasileios Sergis   +1 more
doaj   +1 more source

Matrix Design for Optimal Sensing [PDF]

open access: yes, 2012
We design optimal $2 \times N$ ($2
Achanta, Hema Kumari   +2 more
core   +1 more source

Optimal, minimax and admissible two-stage design for phase II oncology clinical trials

open access: yesBMC Medical Research Methodology, 2020
Background The article aims to compare the efficiency of minimax, optimal and admissible criteria in Simon’s and Fleming’s two-stage design. Methods Three parameter settings (p 1-p 0 = 0.25–0.05, 0.30–0.10, 0.50–0.30) are designed to compare the maximum ...
Fei Qin   +7 more
doaj   +1 more source

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