Results 41 to 50 of about 715,216 (279)

Robust sub-50 fs cavity-laser phase stabilization for ultra-fast electron diffraction instruments [PDF]

EPJ Web of Conferences, 2019
A novel laser-RF cavity synchronization scheme was developed for ultrafast electron diffraction instruments. The approach directly generates a synchronized microwave tone by retrieving a phase-locked high-harmonic by photodetection.
Otto Martin R., René de Cotret Laurent P., Stern Mark J., Siwick Bradley J.   +3 more
doaj   +1 more source

Perceptual Tone Mapping Model for High Dynamic Range Imaging

IEEE Access, 2023
One of the key challenges in tone mapping is to preserve the perceptual quality of high dynamic range (HDR) images when mapping them to standard dynamic range (SDR) displays.
Imran Mehmood, Xinye Shi, Muhammad Usman Khan, Ming Ronnier Luo   +3 more
doaj   +1 more source

Low-Light Image Enhancement Using CycleGAN-Based Near-Infrared Image Generation and Fusion

Mathematics
Image visibility is often degraded under challenging conditions such as low light, backlighting, and inadequate contrast. To mitigate these issues, techniques like histogram equalization, high dynamic range (HDR) tone mapping and near-infrared (NIR ...
Min-Han Lee, Young-Ho Go, Seung-Hwan Lee, Sung-Hak Lee   +3 more
doaj   +1 more source

Complex-Tone Pitch Discrimination in Listeners With Sensorineural Hearing Loss

Trends in Hearing, 2016
Physiological studies have shown that noise-induced sensorineural hearing loss (SNHL) enhances the amplitude of envelope coding in auditory-nerve fibers.
Federica Bianchi, Michal Fereczkowski, Johannes Zaar, Sébastien Santurette, Torsten Dau   +4 more
doaj   +1 more source

Deep Chroma Compression of Tone-Mapped Images

ACM Transactions on Multimedia Computing, Communications, and Applications
Acquisition of High Dynamic Range (HDR) images is thriving due to the increasing use of smart devices and the demand for high-quality output. Extensive research has focused on developing methods for reducing the luminance range in HDR images using conventional and deep learning-based tone mapping operators to enable accurate reproduction on ...
Xenios Milidonis, Alessandro Artusi, Francesco Banterle   +2 more
openaire   +3 more sources

Low tone spreading in Buli [PDF]

, 2003
In Buli, tone indicates lexical information as well as grammatical information. The changing of tone patterns regularly observed on lexemes is covered best by an autosegmental approach with autonomous tonal and segmental tiers.
Schwarz, Anne
core   +1 more source

Vasovagal cardiac arrest during spinal anesthesia for Cesarean section -A case report- [PDF]

Korean Journal of Anesthesiology, 2013
The vasovagal response is characterized by an inappropriate combination of bradycardia and paradoxical vasodilation. During a general or neuraxial anesthesia-induced sympathectomy, a sudden vagal activation and/or an acute reduction in sympathetic tone ...
Young-Eun Jang, Sang-Hwan Do, In-Ae Song
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Neonatal Resuscitation in Primary Health Care Facilities

Solo Journal of Anesthesi, Pain and Critical Care, 2022
Background : Neonatal resuscitation is an action that must be done in the first minute when a newborn with severe asphyxia is born. Case Illustration : The case was infant  whom born spontaneously from 41 years old woman, G7P6A0 in primary health care ...
Gusti Ayu Putu Ika Bella Saptaning Astyari, Rabel Relianta Zagoto, Oby Mesakh Ngahu   +2 more
doaj   +1 more source

Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation

FEBS Letters, EarlyView.
Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang, Ruslana Romaniuk, Hristo L. Svilenov   +2 more
wiley   +1 more source