Results 41 to 50 of about 236,638 (182)

Some incidence theorems and integrable discrete equations

, 2004
Several incidence theorems of planar projective geometry are considered. It is demonstrated that generalizations of Pascal theorem due to M\"obius give rise to double cross-ratio equation and Hietarinta equation.
Adler, V. E.
core   +2 more sources

High efficiency near diffraction-limited mid-infrared flat lenses based on metasurface reflectarrays [PDF]

, 2016
A limiting factor in the development of mid-infrared optics is the lack of abundant materials that are transparent, low cost, lightweight, and easy to machine. In this paper, we demonstrate a metasurface device that circumvents these limitations.
Aieta, Francesco, Capasso, Federico, Gabay, Ilan, Khorasaninejad, Mohammadreza, Kim, Myoung-Hwan, Mansuripur, Tobias, Rousso, David, She, Alan, Troccoli, Mariano, Wang, Xiaojun, Yu, Nanfang, Zhang, Shuyan   +11 more
core   +3 more sources

Study on the Seismic Response of a Water-Conveyance Tunnel Considering Non-Uniform Longitudinal Subsurface Geometry and Obliquely Incident SV-Waves

Applied Sciences
The longitudinal seismic response characteristics of a shallow-buried water-conveyance tunnel under non-uniform longitudinal subsurface geometry and obliquely incident SV-waves was studied using the numerical method, where the effect of the non-uniform ...
Erlei Yao, Yu Rao, Meishan Liu, Zhifang Liu, Ang Cao   +4 more
doaj   +1 more source

OPTIMIZING TERRESTRIAL LASER SCANNING MEASUREMENT SET-UP [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
One of the main applications of the terrestrial laser scanner is the visualization, modeling and monitoring of man-made structures like buildings. Especially surveying applications require on one hand a quickly obtainable, high resolution point cloud but
S. Soudarissanane, R. Lindenbergh
doaj   +1 more source

Nuclear resonant surface diffraction [PDF]

, 2017
Nuclear resonant x-ray diffraction in grazing incidence geometry is used to determine the lateral magnetic configuration in a one-dimensional lattice of ferromagnetic nanostripes.
Bocklage, Lars, Dzemiantsova, Liudmila, Meier, Guido, Pues, Matthias, Röhlsberger, Ralf, Schlage, Kai, Wille, Hans-Christian   +6 more
core   +1 more source

Resolving Three-Dimensional Surface Motion with InSAR: Constraints from Multi-Geometry Data Fusion

Remote Sensing, 2019
Interferometric synthetic aperture radar (InSAR) technology has been widely applied to measure Earth surface motions related to natural and anthropogenic crustal deformation phenomena.
Thomas Fuhrmann, Matthew C. Garthwaite
doaj   +1 more source

Application of multireflection grazing incidence method for stress measurements in polished Al–Mg alloy and CrN coating [PDF]

, 2012
Multi-reflection grazing incidence geometry, referred to as MGIXD, characterized by a small and constant incidence angle, was applied to measure low surface stresses in very thin layers of Al–Mg alloy and CrN coating.
BACZMANSKI, Andrzej, BONARSKI, J, BRAHAM, Chedly, CHOPART, J.-P., LODINI, A, MARCISZKO, Marianna, TARKOWSKI, L., WIERZBANOWSKI, K, WROBEL, Mirosław, ZAZI, N   +9 more
core   +6 more sources

Spatiotemporal Optimization of Observation Geometry for Wave-Induced Bias in the Kuroshio Region Using the KaDOP Model and Five Years of Hourly ERA5 Reanalysis Data

Remote Sensing
Ocean surface currents (OSCs) are central to upper ocean dynamics and air–sea exchange, yet their retrieval from spaceborne synthetic aperture radar (SAR) is limited by wave-induced bias (WB).
Saichao Cao, Yongsheng Xu, Hanwei Sun, Weiya Kong   +3 more
doaj   +1 more source

Coherent Magnetization Rotation of a Layered System Observed by Polarized Neutron Scattering under Grazing Incidence Geometry

Crystals, 2019
The in-plane magnetic structure of a layered system composed of polycrystalline grains smaller than the ferromagnetic exchange length was studied to elucidate the mechanism controlling the magnetic properties considerably different from the bulk using ...
Ryuji Maruyama, Thierry Bigault, Thomas Saerbeck, Dirk Honecker, Kazuhiko Soyama, Pierre Courtois   +5 more
doaj   +1 more source

Parametric investigation of laser incidence geometry in laser-assisted milling of Inconel 718

Journal of Materials Research and Technology
While laser-assisted milling machining is promising for promoting the machinability of Inconel 718, the geometrical parameters of laser beam relative to milling tool significantly influence its machining performance.
Chenwei Gao, Pengfan Wei, Shuo Jin, Junjie Zhang   +3 more
doaj   +1 more source