Results 31 to 40 of about 130,696 (295)

Development of a 0.25 m f/10 reflecting telescope consisting of a thin primary mirror and a friction drive

open access: yesRuhuna Journal of Science, 2020
Modern astronomical telescopes are comprised of high-quality optics and superior mounting designs to meet the standards and challenges of observational astronomy. Cost of commercial telescopes is a constraint for developing countries like Sri Lanka to
H.S.D. Amaradasa   +4 more
doaj   +1 more source

Development of Texture Mapping Approaches for Additively Manufacturable Surfaces

open access: yesChinese Journal of Mechanical Engineering, 2022
Additive manufacturing (AM) technologies have been recognized for their capability to build complex components and hence have offered more freedom to designers for a long time.
Bhupesh Verma   +3 more
doaj   +1 more source

The Various Radii Circle Packing Problem in a Triangle

open access: yesMathematics
Malfatti’s problem is the problem of fitting three circles into a triangle such that they are tangent to each other and each circle is also tangent to a pair of the triangle’s sides.
Ching-Shoei Chiang, Yi-Ting Chiang
doaj   +1 more source

Optimization of the LS89 Axial Turbine Profile Using a CAD and Adjoint Based Approach †

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2018
The LS89 high pressure axial turbine vane was originally designed and optimized for a downstream isentropic Mach number of 0.9. This profile has been widely used for computational fluid dynamics (CFD) validation in the open literature but very few ...
Ismael Sanchez Torreguitart   +2 more
doaj   +1 more source

How fast can vanadium dioxide neuron-mimicking devices oscillate? Physical mechanisms limiting the frequency of vanadium dioxide oscillators

open access: yesNeuromorphic Computing and Engineering, 2023
The frequency of vanadium dioxide (VO _2 ) oscillators is a fundamental figure of merit for the realization of neuromorphic circuits called oscillatory neural networks (ONNs) since the high frequency of oscillators ensures low-power consuming, real-time ...
S Carapezzi   +5 more
doaj   +1 more source

Curve network interpolation by $C^1$ quadratic B-spline surfaces

open access: yes, 2015
In this paper we investigate the problem of interpolating a B-spline curve network, in order to create a surface satisfying such a constraint and defined by blending functions spanning the space of bivariate $C^1$ quadratic splines on criss-cross ...
Dagnino, Catterina   +2 more
core   +1 more source

Biomechanical comparative finite element analysis between a conventional proximal interphalangeal joint flexible hinge implant and a novel implant design using a rolling contact joint mechanism

open access: yesJournal of Orthopaedic Surgery and Research, 2023
Background The rolling contact joint (RCJ) mechanism is a system of constraint that allows two circular bodies connected with flexible straps to roll relative to one another without slipping.
Yong-Jae Kim, Hyun-ah Bae, Seok Woo Hong
doaj   +1 more source

Combining constructive and equational geometric constraint solving techniques [PDF]

open access: yes, 1997
In the past few years, there has been a strong trend towards developing parametric, computer aided design systems based on geometric constraint solving.
Joan Arinyo, Robert, Soto Riera, Antoni
core   +1 more source

Parent‐to‐Child Information Disclosure in Pediatric Oncology

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Despite professional consensus regarding the importance of open communication with pediatric cancer patients about their disease, actual practice patterns of disclosure are understudied. Extant literature suggests a significant proportion of children are not told about their diagnosis/prognosis, which is purported to negatively ...
Rachel A. Kentor   +12 more
wiley   +1 more source

Franco-Japanese Research Collaboration on Constraint Programming [PDF]

open access: yes, 2006
International audienceConstraint programming is an emergent technology that allows modeling and solving various problems in many areas such as artificial intelligence, computer programming, computer-aided design, computer graphics, and user interfaces ...
Benhamou, Frédéric   +6 more
core   +1 more source

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