Results 11 to 20 of about 16,352,078 (311)

Design of Wide Angle and Large Aperture Optical System with Inner Focus for Compact System Camera Applications

Applied Sciences, 2019
Conventionally, a bright, very wide-angle optical system is designed as a floating type optical system that moves two or more lens groups composed of multiple lens in order to focus accurately.
Hojong Choi, Jaemyung Ryu
doaj   +1 more source

Power Profile-Based Antenna Selection for Millimeter Wave MIMO With an All-Planar Lens Antenna Array

IEEE Access, 2021
Lens antenna arrays can significantly reduce the number of radio frequency (RF) chains and provide a cost-effective beamforming approach to millimeter-wave massive multiple-input multiple-output (MIMO) systems.
Qianyun Zhang, Xinwei Li, Lei Cheng, Yuanwei Liu, Yue Gao   +4 more
doaj   +1 more source

Chromatin remodeling enzyme Brg1 is required for mouse lens fiber cell terminal differentiation and its denucleation [PDF]

, 2010
Background: Brahma-related gene 1 (Brg1, also known as Smarca4 and Snf2 beta) encodes an adenosine-5'-triphosphate (ATP)-dependent catalytical subunit of the (switch/sucrose nonfermentable) (SWI/SNF) chromatin remodeling complexes.
He, Shuying, Metzger, Daniel, Wolf Louise, Bharesh K Chauhan, Chambon, Pierre, Ruth Ashery-Padan, Nakai, Akira, Zavadil, Jiri, Cveklova Kveta, Daniel Metzger, Ernst R Tamm, Chauhan Bharesh K, Metzger Daniel, Melinda K Pirity, Wang Wei-Lin, Chauhan, Bharesh K., Pierre Chambon, Cveklova, Kveta, Cvekl Ales, Akira Nakai, Ales Cvekl, Pirity Melinda K, Wolf, Louise, Tamm, Ernst R., Ashery-Padan, Ruth, Cvekl, Ales, Chambon Pierre, Wang, Wei-Lin, Wei-Lin Wang, Ashery-Padan Ruth, Nakai Akira, He Shuying, Shuying He, Kveta Cveklova, Zavadil Jiri, Louise Wolf, Tamm Ernst R, Jiri Zavadil, Pirity, Melinda K.   +38 more
core   +1 more source

Patient comfort following thirty minutes of lens wear: piggy-back versus conventional rigid-lens wear

African Vision and Eye Health, 2014
Discomfort when wearing contact lenses, especially rigid contact lenses, is a common complaint amongst neophyte as well as experienced contact lens wearers. Wearing a piggy-back system of contact lenses has been shown to improve comfort and wearing time,
W. D.H. Gillan
doaj   +1 more source

Experimental Characterization of High Tolerance to Beam Irradiation Conditions of Light Beam Power Receiving Module for Optical Wireless Power Transmission Equipped with a Fly-Eye Lens System

Energies, 2022
This paper is an experimental characterization of a light-receiving module containing a fly-eye lens system with high tolerance to beam irradiation conditions. The fly-eye lens system, which is tolerant to fluctuations in beam shape, beam size, number of
Yuha Tai, Tomoyuki Miyamoto
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.   +48 more
core   +2 more sources

A Novel Fisheye-Lens-Based Photoacoustic System

Sensors, 2016
This paper presents a novel fisheye-lens-based photoacoustic (PA) system. In conventional PA systems, mechanical motors are utilized to obtain the target information due to the small fields of view of such systems.
Hojong Choi, Jaemyung Ryu, Jungsuk Kim
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

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

Developed an In-Line System of Measuring MTF for Automating the Assembly Process of Lens-Module in a Smartphone Camera [PDF]

한국정밀공학회지, 2021
In this paper, we would like to introduce an in-line MTF (Modulation Transfer Function) measuring system which is compatible with the automated assembly process line of lens-modules in smartphone cameras.
Sangseon Lee, Hojae Lee
doaj   +1 more source