Results 21 to 30 of about 18,287 (310)

Directed Binary Hierarchies and Directed Ultrametrics [PDF]

open access: yesJournal of Classification, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lerman, Israël-César, C.   +1 more
openaire   +7 more sources

After direct manipulation---direct sonification [PDF]

open access: yesACM Transactions on Applied Perception, 1998
The effectiveness of providing multiple-stream audio to support browsing on a computer was investigated through the iterative development and evaluation of a series of sonic browser prototypes. The data set used was a database containing music.
Mikael Fernström, Caolan McNamara
openaire   +2 more sources

Localisation of defects with time and frequency measurements using pulsed arrays [PDF]

open access: yes, 2014
The frequency dependent directivity of the periodic permanent magnet transducer is to used extract information about the position of any discontinuities present in a sample. Two approaches are used; narrowband excitation, and broadband pulsed generation.
Dixon, Steve   +3 more
core   +1 more source

Changing Direction on Direction of Fit [PDF]

open access: yesEthical Theory and Moral Practice, 2012
In this paper, I show that we should understand the direction of fit of beliefs and desires in normative terms. After rehearsing a standard objection to Michael Smith’s analysis of direction of fit, I raise a similar problem for Lloyd Humberstone’s analysis.
openaire   +2 more sources

Directed triangles in directed graphs

open access: yesDiscrete Mathematics, 1992
The authors show that if each vertex of an oriented graph \(G_ n\) has indegree and outdegree at least \(n/t\), where \(t=2.867\dots,\) then \(G_ n\) contains an oriented 3-cycle.
Maurits de Graaf   +2 more
openaire   +3 more sources

A Logic of Directions [PDF]

open access: yesProceedings of the Twenty-Ninth International Joint Conference on Artificial Intelligence, 2020
We propose a logic of directions for points (LD) over 2D Euclidean space, which formalises primary direction relations east (E), west (W), and indeterminate east/west (Iew), north (N), south (S) and indeterminate north/south (Ins). We provide a sound and complete axiomatisation of it, and prove that its satisfiability problem is NP-complete.
Heshan Du   +2 more
openaire   +4 more sources

Chemical Mechanical Planarization and Old Italian Violins

open access: yesMicromachines, 2018
Previous studies have shown that spectral analysis based on force data can elucidate fundamental physical phenomena during chemical mechanical planarization (CMP). While it has not been literally described elsewhere, such analysis was partly motivated by
Ara Philipossian   +2 more
doaj   +1 more source

Every Direction a Julia Direction [PDF]

open access: yesProceedings of the American Mathematical Society, 1974
Let f ( z ) = exp
openaire   +2 more sources

Nature Inspired MIMO Antenna System for Future mmWave Technologies

open access: yesMicromachines, 2020
In this work, a new Multiple Input Multiple Output (MIMO) antenna system with a novel shape inspired by nature is proposed for Fifth-Generation (5G) communication systems. The antenna is designed on a Rogers 5880. The dielectric constant of the substrate
Saifur Rahman   +8 more
doaj   +1 more source

Steering performance of ultrasonic phased array sensors using acoustic fields under directivity constraint

open access: yesAIP Advances, 2021
Ultrasonic phased array sensors consist of multiple elements excited by predetermined time-delayed pulses. The directivity of each element was used to propose a sound field calculation model that adds a directivity constraint for each element.
Xia Zhao, Zhaoba Wang
doaj   +1 more source

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