Results 121 to 130 of about 99,410 (264)

Visibility Evaluation of Fundic Gland Polyp Associated With Proton Pump Inhibitor in Texture and Color Enhancement Imaging

open access: yesDEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Objectives A ‘gray color sign’ (GCS) is a new endoscopic feature of fundic gland polyp associated with proton pump inhibitor (PPI‐FGP). Here, we compare the ability of texture and color enhancement imaging (TXI) to white light imaging (WLI) with regard to the detection of GCS. Methods In this prospective study, 19 consecutive patients with PPI‐
Ryota Uchida   +17 more
wiley   +1 more source

Birefringent devices Final report, 8 Mar. 1966 - 8 Mar. 1967 [PDF]

open access: yes
Birefringent devices, lossless double-pass network synthesis, and electro-optical amplitude ...
Ammann, E. O., Yarborough, J. M.
core   +1 more source

Nitrogen‐Doped Graphene Aerogels for Supercapacitors: Advances in Synthesis and Electrochemical Performance

open access: yesBattery Energy, Volume 5, Issue 2, March 2026.
This review explores nitrogen‐doped graphene aerogel materials used in supercapacitors, analyzing synthesis techniques, performance measures, and recent advancements. It highlights material challenges and limitations while suggesting directions for future research.
Khaled Abdou Ahmed Abdou Elsehsah   +6 more
wiley   +1 more source

Lossless convexification and duality

open access: yesJournal of the Franklin Institute
The main goal of this paper is to investigate strong duality of non-convex semidefinite programming problems (SDPs). In the optimization community, it is well-known that a convex optimization problem satisfies strong duality if the Slater's condition holds. However, this result cannot be directly generalized to non-convex problems.
openaire   +3 more sources

Recent Advancements in the Characterization of D‐Amino Acid and Isoaspartate Post‐Translational Modifications

open access: yesMass Spectrometry Reviews, Volume 45, Issue 2, Page 218-230, March/April 2026.
ABSTRACT One of the great triumphs of mass spectrometry‐based peptide and protein characterization is the characterization of their modifications as most modifications have a characteristic mass shift. What happens when the modification does not change the mass of the peptide?
Samuel Okyem, Jonathan V. Sweedler
wiley   +1 more source

Spatially‐Controlled Planar Guided Crystallization of Low‐Loss Phase Change Materials for Programmable Photonics

open access: yesAdvanced Materials, Volume 38, Issue 8, 6 February 2026.
The concept of spatially‐controlled planar guided crystallization is a novel method for programming the growth of optically homogeneous low‐loss Sb2S3 phase‐change material (PCM), leveraging the directional crystallization within confined channels.
Fouad Bentata   +16 more
wiley   +1 more source

Performance-lossless Black-box Model Watermarking [PDF]

open access: green, 2023
Na Zhao   +3 more
openalex   +1 more source

Laminated Multilayer Optical Waveguides Enabled by Floating Film Transfer

open access: yesAdvanced Materials Interfaces, Volume 13, Issue 3, 3 February 2026.
A scalable floating film transfer process enables the lamination of sub‐micron polymer films into high‐quality multilayer optical waveguides. The method preserves optical performance, allows precise control over layer stacking, and supports the integration of high‐index‐contrast polymer/air gratings for efficient mode coupling in advanced photonic ...
Christopher Knoth   +3 more
wiley   +1 more source

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