Results 141 to 150 of about 503,018 (197)

Interference Field Control for High-Uniformity Nanopatterning: A Review. [PDF]

Sensors (Basel)
Li J, Li X.
europepmc   +1 more source

Integrating the One Health approach into school curricula: perceptions and educational needs of teachers in mainland France and New Caledonia. [PDF]

Front Public Health
Hermet L, Coraci P, Touboul-Lundgren P.
europepmc   +1 more source

The Global Wheat Full Semantic Organ Segmentation (GWFSS) dataset. [PDF]

Plant Phenomics
Wang Z, Zenkl R, Greche L, De Solan B, Samatan LB, Ouahid S, Visioni A, Robles-Zazueta CA, Pinto F, Perez-Olivera I, Reynolds MP, Zhu C, Liu S, D'argaignon MP, Lopez-Lozano R, Weiss M, Marzougui A, Roth L, Dandrifosse S, Carlier A, Dumont B, Mercatoris B, Fernandez J, Chapman S, Najafian K, Stavness I, Wang H, Guo W, Virlet N, Hawkesford MJ, Chen Z, David E, Gillet J, Irfan K, Comar A, Hund A.   +35 more
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An exploratory study on transformational leadership competencies in global health. [PDF]

Front Health Serv
Löfflad-Bürkin BM, Czabanowska K, Vicente-Crespo M, Babich S, Casamitjana N, De Souza LE, Rispel L, Rutebemberwa E, Matthiä A, Okumu F, Kuenzli N, Hoffmann A, Waser M, Kamath R, Ehrenberg JP, Hattendorf J, Bohlius J.   +16 more
europepmc   +1 more source

RETRACTED: An innovative efficiency of incubator to enhance organization supportive business using machine learning approach.

PLoS One
Li X, Zhang Q, Gu H, Othmen S, Asklany S, Lhioui C, Elrashidi A, Mercorelli P.   +7 more
europepmc   +1 more source

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A Luneburg Lens for the Terahertz Region

Journal of Infrared, Millimeter, and Terahertz Waves, 2019
We experimentally demonstrate a two-dimensional Luneburg lens for the THz region using a waveguide-based artificial-dielectric medium. The substrate material of the lens is Teflon with the top and bottom surfaces coated with silver to form a quasi-parallel-plate waveguide.
Yasith Amarasinghe, Daniel Mittleman, Rajind Mendis   +2 more
exaly   +2 more sources

Printed holey plate Luneburg lens

Microwave and Optical Technology Letters, 2007
AbstractA printed Luneburg lens whose permittivity distribution is controlled by photo lithographically etching holes of different sizes into one side of a PCB ground plane is reported. The lens designed to operate in TE01 mode has a measured −3‐dB beamwidth of 5.2° with 14.2‐dB gain at 27.22 GHz for a 12.2λ, 13.4‐cm diameter lens.
Xue, L., Fusco, V. F.
openaire   +3 more sources

Smooth plate Luneburg lens with superstrate

, 2015
This paper deals with a new technological process allowing to manufacture a Luneburg lens antenna with a smooth gradient index law following the theoretical one. The technological process is validated through the design of a 60GHz plate Luneburg lens. Moreover, a dielectric superstrate is added front of the lens to narrow the beam in the E plane and so
Bór, J., Lafond, O., Himdi, Mohamed, Merlet, H., Lebars, P.   +4 more
openaire   +2 more sources

Planar bifunctional Luneburg-fisheye lens made of an anisotropic metasurface

Laser and Photonics Reviews, 2014
Luneburg lens and Maxwell-fisheye lens are well-known microwave and optical devices with distinct focusing properties. Here, a planar bifunctional Luneburg-fisheye lens made of an anisotropic metasurface is presented, which features as a Luneburg along ...
Tie Jun Cui, Xiang Wan, Yu Luo
exaly   +3 more sources

Modified structural Luneburg lens for broadband focusing and collimation

Mechanical Systems and Signal Processing, 2020
Luneburg lens is a symmetric gradient-index lens with a refractive index that increases from the outer surface to the center in a radial manner. It has the ability to focus and collimate waves, which makes it useful for energy harvesting, waveguiding and
Liuxian Zhao, Changquan Lai, Miao Yu
exaly   +2 more sources