Results 31 to 40 of about 13,797 (255)

Improved method to optimize the phase jump of multiple exposure-tiled gratings

High Power Laser Science and Engineering
Large-aperture gratings have significant applications in inertial confinement fusion, immersion lithography manufacturing and astronomical observation. Currently, it is challenging and expensive to manufacture sizable monolithic gratings.
Xinhui Ding, Hui Yu, Dawei Li, Junyong Zhang, Li Wang, Qiong Zhou, Xingqiang Lu   +6 more
doaj   +1 more source

Artificial Intelligence in Systemic Sclerosis: Clinical Applications, Challenges, and Future Directions

Arthritis Care &Research, EarlyView.
Systemic sclerosis (SSc) is a rare autoimmune disease defined by immune dysregulation, vasculopathy, and progressive fibrosis of the skin and internal organs. Despite advances in care, major complications such as interstitial lung disease (ILD) and myocardial involvement remain the leading causes of morbidity and mortality.
Cristiana Sieiro Santos, José Miguel Sequí‐Sabater, Diego Benavent   +2 more
wiley   +1 more source

Rigorous coupled-wave analysis of antireflective surface-relief gratings [PDF]

Journal of the Optical Society of Korea, 1997
Rigorous coupled-wave analysis (RCWA) with a simplified eigenvalue problem is used to investigate the an-tireflective property of one-dimensional surface-relief gratings such as binary gratings, triangular gratings and gratings with triangle-like surface profiles. The convergence of RCWA is investigated by varying the number of layers and the number of
Chang-Wook Han, Doo-Jin Cho, Bum-Ku Rhee
openaire   +1 more source

Rheumatoid Arthritis and Coronary Artery Calcium Progression: A Case Cohort Analysis From ELSA‐Brasil

Arthritis Care &Research, EarlyView.
Objective To investigate the association between rheumatoid arthritis (RA) and coronary artery calcium (CAC) prevalence, incidence, and progression over four years in adults without prior cardiovascular disease. Methods A case‐cohort study within the Brazilian Longitudinal Study of Adult Health (ELSA‐Brasil) included 585 participants (86 patients with ...
Patrícia Fonseca Estrada, Marcos Rafael N. Cavalcante, Itamar de Souza Santos, Márcio S. Bittencourt, Vandrize Meneghini, Paulo A. Lotufo, Alessandra C. Goulart, Isabela M. Bensenor   +7 more
wiley   +1 more source

Perspective: Optical measurement of feature dimensions and shapes by scatterometry

APL Materials, 2018
The use of optical scattering to measure feature shape and dimensions, scatterometry, is now routine during semiconductor manufacturing. Scatterometry iteratively improves an optical model structure using simulations that are compared to experimental ...
Alain C. Diebold, Andy Antonelli, Nick Keller   +2 more
doaj   +1 more source

Anorectal Dysfunction in Systemic Sclerosis: Clinical Phenotypes and Functional Patterns

Arthritis Care &Research, EarlyView.
Objective The aim of this study was to characterize specific physiologic defects in anorectal dysfunction in systemic sclerosis (SSc) using anorectal manometry (ARM), evaluate associations with gastrointestinal (GI) and extraintestinal clinical phenotypes, and explore potential serologic markers for risk stratification.
Timothy Kaniecki, Alireza Amindarolzarbi, Tsion Abdi, John Clarke, Michael Hughes, Ami A. Shah, Zsuzsanna H. McMahan   +6 more
wiley   +1 more source

Tunable Chiral Spectral Responses of Incommensurate Twisted Bilayer Photonic Crystals

Applied Sciences
Recently, twisted bilayer photonic crystals (TBPhCs) have been used as moiré-based optical platforms, supporting twist-tunable chiroptical and polarization-dependent responses. A periodic moiré supercell exists only for commensurate twist angles, whereas
Hyundong Kim, Dowoon Kim, You-Shin No
doaj   +1 more source

Design and Analysis of High-Index-Contrast Gratings Using Coupled Mode Theory

IEEE Photonics Journal, 2010
We analyze high-refractive-index-contrast subwavelength grating structures using truncated coupled mode theory (CMT). CMT not only provides physical insight into the role of each mode in the overall response but also allows for improved design.
Aftab Ahmed, Marco Liscidini, Reuven Gordon   +2 more
doaj   +1 more source

Bandpass filters based on integrated aperture‐ and gap‐coupled discontinuities

IET Communications, 2022
An electromagnetic coupling mechanism is discussed for distributed‐element aperture‐ and gap‐coupled discontinuities based on rigorous lumped‐element equivalent circuit analysis.
Amir Nosrati, Mahmoud Mohammad‐Taheri
doaj   +1 more source

Microvascular Damage Is Associated With Carotid Wall Structural Changes in Systemic Sclerosis: A Capillaroscopy and Ultrasound‐Based Observational Study

Arthritis Care &Research, EarlyView.
Objective Systemic sclerosis (SSc) is characterized by cardiovascular risk excess not fully explained by traditional factors. Whether the severity of microvascular damage correlates with structural subclinical atherosclerosis remains unclear. We investigated the relationship between nailfold videocapillaroscopy (NVC) abnormalities and carotid ...
Eugenio Capparelli, Luca Clerici, Francesco Lapia, Giusy C. Moltisanti, Eleonora Zaccara, Greta Pellegrino, Daniela Bompane, Francesca Capelli, Letizia Ferrami, Laura Castelnovo, Antonio Tamburello, Maria Sole Chimenti, Paola Faggioli, Antonino Mazzone   +13 more
wiley   +1 more source