Results 31 to 40 of about 130,570 (300)

Polar invariants of plane curve singularities: intersection theoretical approach [PDF]

open access: yes, 2010
This article, based on the talk given by one of the authors at the Pierrettefest in Castro Urdiales in June 2008, is an overview of a number of recent results on the polar invariants of plane curve singularities.
Arkadiusz Płoski   +2 more
core   +1 more source

Influence of wing design modification on aircraft polar curve [PDF]

open access: yes, 2019
This thesis focuses on determining the polar curve of Roko NG aircraft, its evaluation and design of possible wing modification; on the influence of said modification on the polar curve and determination of basic flight performance.
Mixová, Alexandra
core   +2 more sources

Polar damage sum concept for constant amplitude proportional and nonproportional multiaxial fatigue analysis

open access: yesForces in Mechanics, 2021
This paper proposes a new concept for the evaluation of fatigue damage parameters. It is suggested that evaluation of fatigue damage may not necessarily be confined to a single plane, i.e., a critical plane.
Jafar Albinmousa, Mohammed Al Hussain
doaj   +1 more source

On a Class of Polar Log-Aesthetic Curves [PDF]

open access: yesVolume 3B: 47th Design Automation Conference (DAC), 2021
Abstract Curves are essential concepts that enable compounded aesthetic curves, e.g., to assemble complex silhouettes, match a specific curvature profile in industrial design, and construct smooth, comfortable, and safe trajectories in vehicle-robot navigation systems.
openaire   +2 more sources

First pre-modern record of the gyrfalcon (Falco rusticolus) in north-east Greenland [PDF]

open access: yes, 2019
Gyrfalcon (Falco rusticolus) is the largest falcon in the world. It inhabits a wide range of climate zones in the Northern Hemisphere, from boreal forests in the south of its range to the arid polar deserts of the High Arctic.
Gotfredsen, Anne Birgitte   +11 more
core   +1 more source

Lead titanate-induced abnormal ferroelectric/antiferroelectric phase transitions in Pb(Lu0.5Nb0.5)O3 solid solutions

open access: yesMaterials & Design, 2019
The development of bulk materials with ferroelectric/antiferroelectric (FE/AFE) phase transitions is of importance for meeting the needs of advanced electronic equipment. Here, we report a (1 − x)Pb(Lu0.5Nb0.5)O3-xPbTiO3 (abbreviated as PLNT100x) system,
Xiaoming Yang   +7 more
doaj   +1 more source

Validation study of Polar V800 accelerometer [PDF]

open access: yes, 2016
Background: The correct quantification of physical activity (PA) and energy expenditure (EE) in daily life is an important target for researchers and professionals.
Santos-Lozano, Alejandro   +7 more
core   +1 more source

A gymkhana to discover and generate curves in a cooperative work

open access: yesMultidisciplinary Journal for Education, Social and Technological Sciences, 2014
The student who access the University understands a curve as a function represented by an equality involving the Cartesian variables x and y. But he does not know another great set of curves such as those described by parametric equations and polar ...
Anna Vidal Meló   +3 more
doaj   +1 more source

Remanent magnetization of two intrusive bodies in southeastern Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1978
Direction of natural remanent magnetization (NRM) was measured for a diabase from the intrusive contact of rapakivi granite (1650 Ma) and for a granodiorite intrusion (1810 Ma).
K.J. Neuvonen
doaj   +1 more source

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