Results 61 to 70 of about 4,137,589 (389)

Numerical study on the supercavitating flow around an underwater high-speed projectile near the unsteady free surface

AIP Advances
When a high-speed projectile navigates underwater near the surface, the unsteady free surface changes the surrounding flow velocity and pressure distribution, which affects the supercavitating flow pattern and hydrodynamic characteristics. Therefore, the
Yunxia Xu, Xin Yuan, Xin Zhang, Chi Zhang, Yuyang Yang, Jiahe Li, Zijie Zhao, Qi Dai   +7 more
doaj   +1 more source

Analysis of sliding electric contact characteristics in augmented railgun based on the combination of contact resistance and sliding friction coefficient

Defence Technology, 2020
The contact resistance between the armature and rails is an important indicator of the contact characteristics in electromagnetic launches. As the contact resistance depends not only on the contact state but also on the contact stress and temperature ...
Chun-yan Zhu, Bao-ming Li
doaj   +1 more source

Atmospheric diffuse plasma jet formation from positive-pseudo-streamer and negative pulseless glow discharges

Communications Physics, 2021
Streamer coupling theory is traditionally used to engineer the generation of diffuse plasmas in the regime preceding filamentary discharge, but this method remains inefficient.
Jing Li, Bingying Lei, Jing Wang, Boping Xu, Shuang Ran, Yishan Wang, Tongyi Zhang, Jie Tang, Wei Zhao, Yixiang Duan   +9 more
doaj   +1 more source

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser, Alice Bizeul, Meera Chitlur, Hugo Donato, Jelena Roganovic, Julia E. Vogt, Thomas Kühne   +6 more
wiley   +1 more source

The neural bases of event monitoring across domains: a simultaneous ERP-fMRI study. [PDF]

, 2017
The ability to check and evaluate the environment over time with the aim to detect the occurrence of target stimuli is supported by sustained/tonic as well as transient/phasic control processes, which overall might be referred to as event monitoring. The
Causin, Francesco, Formica, Silvia, Mazzonetto, Ilaria, Tarantino, Vincenza, Vallesi, Antonino   +4 more
core   +2 more sources

Developmental Disorders in Children Recently Diagnosed With Cancer

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Neurocognitive deficits in adult survivors of childhood cancer are well established, but less is known about developmental disorders (DD) arising shortly after cancer diagnosis. Using 2016–2019 linked Ohio cancer registry and Medicaid data, we compared DD among 324 children with cancer and 606,913 cancer‐free controls.
Jamie Shoag, Long Vu, Ritika Miryala, Jeffrey M. Albert, Molly McVoy, Siran M. Koroukian   +5 more
wiley   +1 more source

Quasi-All-Fiber High-Efficiency Divided Chirp-Pulse Amplification System Based on Active Controlling

IEEE Photonics Journal, 2016
We present a new high-efficiency divided chirp-pulse amplification (DCPA) system based on an actively controlled quasi-all-fiber structure. As a proof-of-principle experiment, a two-channel amplification system composed of single-mode ytterbium-doped ...
J. Yu, Y. Feng, L. N. Duan, X. H. Li, X. H. Hu, T. Zhang, W. Zhang, Y. S. Wang, Z. Yang, W. Zhao   +9 more
doaj   +1 more source

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

On the use of the theory of dynamical systems for transient problems

, 2013
This paper is a preliminary work to address the problem of dynamical systems with parameters varying in time. An idea to predict their behaviour is proposed.
Galvanetto, Ugo, Magri, Luca
core   +1 more source