Results 71 to 80 of about 5,613 (231)

Robust particle outline extraction and its application to digital on-line holography [PDF]

, 2014
Peer ...
Burns, Nicholas M, Watson, John
core   +1 more source

GPX4 Inhibitor Resistance and Metastatic Features in Triple‐Negative Breast Cancer

Advanced Science, EarlyView.
This study establishes breast cancer cell lines that are resistant to glutathione peroxidase 4 inhibitors (GPX4i) in vitro and investigates the metastatic capacity of the GPX4i‐resistant versus parental lines in vivo. GPX4i‐resistant cells survive upon intravenous injection, but lose capacity to spontaneously metastasize.
Marie Sabatier, Mayher Kaur, Milena Chaufan, Felix‐Levin Hormann, Luiza Martins Nascentes Melo, Mario Palma, Jordan Torpey, Yanshan Liang, Alanis Carmona, Cameron Fraser, Midori Flores, Krystina J. Szylo, Mahsa Yavari, Sheng Hui, Alpaslan Tasdogan, Sven Heiles, Jessalyn M. Ubellacker   +16 more
wiley   +1 more source

Three Dimensional Auto-Alignment of the ICSI Pipette

IEEE Access, 2019
Intracytoplasmic sperm injection (ICSI) is an assisted reproductive technology used in infertility treatment, where a single sperm is selected and immobilized using a glass injection pipette and is inserted directly into the cytoplasm of an oocyte under ...
Ferhat Sadak, Mozafar Saadat, Amir M. Hajiyavand   +2 more
doaj   +1 more source

Design and Experimental Validation of an Optical Autofocusing System with Improved Accuracy

Photonics, 2023
This study proposes a modified optical design to improve the issue of autofocus accuracy in existing optical systems. The proposed system uses lens offset to convert incident light into non-parallel light, achieving a focus shift and avoiding severe ...
Jui-Hsiang Hung, Ho-Da Tu, Wen-Huai Hsu, Chien-Sheng Liu   +3 more
doaj   +1 more source

Reflection and refraction of an Airy beam at a dielectric interface [PDF]

, 2012
Reflection and refraction of a finite-power Airy beam at the interface between two dielectric media are investigated analytically and numerically. The formulation takes into account the paraxial nature of the optical beams to derive convenient field ...
Chremmos, Ioannis, Efremidis, Nikolaos K.   +1 more
core   +3 more sources

Criteria for selecting the Paganin‐filter reconstruction parameter in X‐ray phase‐contrast tomography

Journal of Synchrotron Radiation, EarlyView.
The development of a criterion for near‐optimal selection of the Paganin‐filter parameter based on noise power analysis measured via an image's noise power spectrum is described.The Paganin filter, widely employed in propagation‐based phase‐contrast X‐ray computed tomography with synchrotron light, attenuates phase effects and suppresses high‐frequency
Eduardo X. Miqueles, Everton L. de Oliveira, Murilo Carvalho, David M. Paganin   +3 more
wiley   +1 more source

EXPERIMENTAL KA-BAND GROUND-BASED SAR SYSTEM

Radio Physics and Radio Astronomy, 2015
An experimental ground-based synthetic aperture radar (GB-SAR) system operating at Ka-band has been developed. The system is designed to be operated from a top a hill or from a building roof, etc. for imaging the underlying ground terrain.
O. O. Bezvesilniy, D. M. Vavriv, V. A. Volkov, A. A. Kravtsov, E. V. Bulakh, V. V. Vinogradov, S. S. Sekretarov   +6 more
doaj   +1 more source

Laser autofocusing: A sliding mode approach

IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society, 2010
Quality of the laser processing depends on many factors, such as overall configuration of the laser workstation, control methods used and quality of the laser beam. Although lasers used in material processing are typically high energy lasers, light beam still needs to be focused in order to achieve higher energy density and smaller final spot size ...
Golubovic, Edin, Khalil, Islam S. M., Kamadan, Abdullah, Şabanoviç, Asif   +3 more
openaire   +2 more sources

High speed optical coherence microscopy with autofocus adjustment and a miniaturized endoscopic imaging probe [PDF]

, 2010
Optical coherence microscopy (OCM) is a promising technique for high resolution cellular imaging in human tissues. An OCM system for high-speed en face cellular resolution imaging was developed at 1060 nm wavelength at frame rates up to 5 Hz with ...
Aaron D. Aguirre, Aguirre, Aguirre, Boppart, Boudoux, Bourquin, Chao Zhou, Chen, Chen, Clark, de Boer, Dickensheets, Dubois, Fortier, Geusebroek, Helmchen, Hitzenberger, Hoeling, Huang, Huang, Huber, Izatt, Izatt, Jain, James G. Fujimoto, Juergen Sawinski, Jung, Kempe, Kiesslich, Kim, Lexer, Liu, Maitland, Miyajima, Muldoon, Myaing, Pan, Piyawattanametha, Polglase, Qi, Rajadhyaksha, Rouse, Sawinski, Schmitt, Shu-Wei Huang, Tearney, Wang, Westphal, Willner, Winfried Denk, Xie, Xie, Xie, Xu, Zara, Zhao, Zhu, Zvyagin   +57 more
core   +1 more source

Micro Biomimetic Eyeball for Humanoid Robots: A Visual System with High‐Density Functional Integration Based on an Origami Mechanism

Advanced Science, Volume 13, Issue 1, 5 January 2026.
A biomimetic eyeball system (BES) based on a 3‐DOF miniature origami mechanism, which addresses the inherent issues of large size and weight in traditional electromechanical BESs is presented. Moreover, it maintains a level of visual functionality comparable to that of the human eye, including capabilities such as rapid scanning, target recognition ...
Junji Pu, Yang Chen, Yulie Wu, Canhui Yin, Chunyan Qu, Dingbang Xiao, Xuezhong Wu   +6 more
wiley   +1 more source