Results 251 to 260 of about 258,109 (284)

Automated small tilt-angle measurement using Lau interferometry

Applied Optics, 2005
A technique for a tilt-angle measurement of reflecting objects based on the Lau interferometry coupled with the moire readout has been proposed. A white-light incoherent source illuminates a set of two gratings, resulting in the generation of the Fresnel image due to the Lau effect. The Fresnel image is projected onto a reflecting object.
Shashi, Prakash, Sumitra, Singh, Santosh, Rana   +2 more
openaire   +2 more sources

Axial tilt angles of active regions

Solar Physics, 1996
Separate Mount Wilson plage and sunspot group data sets are analyzed in this review to illustrate several interesting aspects of active region axial tilt angles. (1) The distribution of tilt angles differs between plages and sunspot groups in the sense that plages have slightly higher tilt angles, on average, than do spot groups.
openaire   +1 more source

Edge Enhancement Using the Tilt Angle

68th EAGE Conference and Exhibition incorporating SPE EUROPEC 2006, 2006
Measures of the local phase of potential fields can be a useful aid to their interpretation. There are several variations in use, such as the tilt angle, tilt derivative and the Theta map. This paper introduces some new phase based filters which show improved performance as edge detectors in different ways.
openaire   +1 more source

Tilt-angle variations of active regions

Solar Physics, 1996
An examination of the tilt angles of multi-spot sunspot groups and plages shows that on average they tend to rotate toward the average tilt angle in each hemisphere. This average tilt angle is about twice as large for plages as it is for sunspot groups. The larger the deviation from the average tilt angle, the larger, on average, is the rotation of the
openaire   +1 more source

Patellar tilt angle

2022
Yuranga Weerakkody, Henry Knipe, Sonam Vadera   +2 more
openaire   +1 more source

[Tilting angle of the scapula].

Nihon Seikeigeka Gakkai zasshi, 1984
The shoulder joint has the most freedom of range of motion in the human body. This joint is composed of the gleno-humeral joint, the acromio-clavicular joint, the sterno-clavicular joint and the scapulo-thoracic articulation. The scapula has a very important role in the scapulo-humeral rhythm in the shoulder motions, but the scapular position could be ...
openaire   +1 more source

Axial tilt angles of sunspot groups

Solar Physics, 1991
Digitized Mount Wilson sunspot data from 1917 to 1985 are analyzed to examine tilt angles determined from the area-weighted positions of leading and following sunspots. These spot group tilt angles are examined in relation to other group characteristics to give information which may relate to the formation and evolution of sunspot groups and the ...
openaire   +1 more source

Excitonic devices with van der Waals heterostructures: valleytronics meets twistronics

Nature Reviews Materials, 2022
Alberto Ciarrocchi, Fedele Tagarelli, Ahmet Avsar   +2 more
exaly  

Emerging exciton physics in transition metal dichalcogenide heterobilayers

Nature Reviews Materials, 2022
Emma C Regan, Yongxin Zeng, Long Zhang
exaly  

Tunable strongly coupled superconductivity in magic-angle twisted trilayer graphene

Nature, 2021
Jeong Min Park, Yuan Cao, Kenji Watanabe
exaly