Results 31 to 40 of about 45,422,298 (247)

CORRELATION OF THE NUMBER OF IMAGES OF AN N-POINT GRAVITATIONAL LENS AND THE NUMBER OF SOLUTIONS OF ITS SYSTEM

Odessa Astronomical Publications, 2017
In this paper, we study the correlation between the number of solutions of a system of lens equations and the number of source images that a gravitational lens has. We defined the concept of an image in a gravitational lens.
A. T. Kotvytskiy, S. D. Bronza, V. Yu. Shablenko   +2 more
doaj   +1 more source

Design and Simulation of Aerosol Inlet System for Particulate Matter with a Wide Size Range

Atmosphere, 2023
A novel aerodynamic lens-based inlet system was developed for a wide particle size range, and it could extend the size range of transmitted particulate matter (PM) to 50 nm–10 μm.
Xubing Du, Zeming Zhuo, Xue Li, Xuan Li, Mei Li, Junlin Yang, Zhen Zhou, Wei Gao, Zhengxu Huang, Lei Li   +9 more
doaj   +1 more source

Dysfunctional lens syndrome: a prospective review

Revista Brasileira de Oftalmologia, 2021
The term dysfunctional lens syndrome has gained acceptance in the field and encompasses natural changes due to aging of crystalline lens. The evolution of diagnostic devices has been a key factor in better staging, understanding and characterizing of ...
Jorge Selem Haddad, Karolinne Maia Rocha, George Oral Waring IV, Fernando Faria-Correia, Renato Ambrosio Júnior   +4 more
doaj   +1 more source

Pax6 interactions with chromatin and identification of its novel direct target genes in lens and forebrain. [PDF]

, 2013
Pax6 encodes a specific DNA-binding transcription factor that regulates the development of multiple organs, including the eye, brain and pancreas. Previous studies have shown that Pax6 regulates the entire process of ocular lens development.
Tessa Walcher, Jovica Ninkovic (104237), David C Beebe, Deyou Zheng (7943), Ying Yang (24175), Xie, Q., Jie Huang, Louise Wolf (104240), Ariel Vitenzon (104242), Vitenzon, Ariel, Magdalena Götz, Zavadil, J., Wolf, L., Deyou Zheng, Götz, M., Yang, Ying, Ales Cvekl, Wolf, Louise, Tessa Walcher (104238), Yang, Y., Cvekl, A., Zheng, D.Y., Louise Wolf, Ninkovic, J., Jovica Ninkovic, Ariel Vitenzon, Götz, Magdalena, Jiri Zavadil (10270), Walcher, Tessa, Magdalena Götz (32199), Zavadil, Jiri, Qing Xie, Ninkovic, Jovica, Walcher, T., David C. Beebe (104247), Beebe, D.C., Zheng, Deyou, Huang, Jie, Cvekl, Ales, David C. Beebe, Xie, Qing, Jie Huang (104235), Ales Cvekl (104250), Vitenzon, A., Beebe, David C., Qing Xie (104232), Ying Yang, Jiri Zavadil, Huang, J., Xie Qing, Wolf Louise, Huang Jie, Walcher Tessa, Götz Magdalena, Cvekl Ales, Zheng Deyou, Vitenzon Ariel, Beebe David C., Yang Ying, Ninkovic Jovica, Zavadil Jiri   +60 more
core   +2 more sources

Wide-angle spectral imaging using a Fabry-Pérot interferometer [PDF]

Journal of the European Optical Society-Rapid Publications, 2015
We show that wide-angle spectral imaging can be achieved with compact and cost-effective devices using Fabry-Pérot interferometers. Designs with a full field of view of 90°, in which the Fabry-Pérot interferometer is mounted either in front of an imaging
Strauch M., Livshits I. L., Bociort F., Urbach H. P.   +3 more
doaj   +1 more source

Dynamic Optical Wireless Power Transmission Infrastructure Configuration for EVs

Energies
Electric vehicles (EVs) are becoming more widespread as we move toward a carbon-free society. However, challenges remain, such as the need for large batteries, the inconvenience of charging, and limited driving range.
Mahiro Kawakami, Tomoyuki Miyamoto
doaj   +1 more source

Flying a Micro-Drone by Dynamic Charging for Vertical Direction Using Optical Wireless Power Transmission

Energies
Micro-drones weighing less than about 200 g have a limited flight time of 5–15 min. Dynamic charging by optical wireless power transmission is a promising solution to this problem.
Tomoya Watamura, Takuo Nagasaka, Yuto Kikuchi, Tomoyuki Miyamoto   +3 more
doaj   +1 more source

Enhancement of Vehicular Visible Light Communication Using Spherical Detector and Custom Lens Combinations

IEEE Access, 2023
Vehicular Visible light communication (VLC) technology has recently attracted much interest from researchers and scientists. This technology enables connectivity between vehicles and infrastructures along the road by using vehicles’ headlights and
Selma Yahia, Yassine Meraihi, Amar Ramdane-Cherif, Tu Dac Ho, Hossien B. Eldeeb   +4 more
doaj   +1 more source

Holographic capture and projection system of real object based on tunable zoom lens

, 2020
In this paper, we propose a holographic capture and projection system of real objects based on tunable zoom lenses. Different from the traditional holographic system, a liquid lens-based zoom camera and a digital conical lens are used as key parts to ...
Di Wang, Chao Liu, Chuan Shen, Yan Xing, Qiong-Hua Wang   +4 more
semanticscholar   +1 more source

Frequency response characteristics of objective lens actuators for optical disc drives using viscoelastic damping material

Nihon Kikai Gakkai ronbunshu, 2015
Objective lens actuators are mechanical devices for positioning the objective lens in optical disc drives. The moving part in the objective lens actuator, which is comprised of the objective lens, a holder holding the objective lens, and coils attached ...
Katsuhiko KIMURA, Manabu OCHI, Ryuichiro MIZUNO, Hidenao SAITO, Toshihiko SUGIURA   +4 more
doaj   +1 more source