Results 51 to 60 of about 2,833,435 (268)

Effect of amplitude and pulse in low frequency ultrasound on oil/water emulsions

Dyna, 2016
The application of ultrasound within advanced or emerging technologies requires selecting parameters that depend on the target application. This study evaluated pulse and amplitude parameters of oil/water emulsions (20:80% w/w) using low frequency probe ...
María Alejandra Cabrera-Trujillo, Luz Indira Sotelo-Díaz, María Ximena Quintanilla-Carvajal   +2 more
doaj   +1 more source

Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine, Hallie Coltin, Sylvia Cheng, Lucie Lafay‐Cousin, Vanan Issai Magimairajan, Craig Erker, Stéphanie Vairy, Lynette Bowes, Adam Fleming, Donna Johnston, Sarah McKillop, Roona Sinha, Julie Bennett, Christina Coleman, Laura Wheaton, Shayna Zelcer, Samuele Renzi, Thai Hoa Tran   +17 more
wiley   +1 more source

Towards Nonlinear Magnetic Rotating Pendula for Low-Frequency Weak Vibration Energy Harvesting

Energies
Energy harvesting from ambient vibrations has received significant attention as an alternative renewable, clean energy source for microelectronic devices in diverse applications such as wearables and environmental monitoring.
Mihai Ionut Trandafir, Panagiotis Alevras   +1 more
doaj   +1 more source

A direct laser-synthesized magnetic metamaterial for low-frequency wideband passive microwave absorption

International Journal of Extreme Manufacturing, 2023
Microwave absorption in radar stealth technology is faced with challenges in terms of its effectiveness in low-frequency regions. Herein, we report a new laser-based method for producing an ultrawideband metamaterial-based microwave absorber with a ...
Yihe Huang, Yize Li, Kewen Pan, Yixian Fang, Kai Chio Chan, Xiaoyu Xiao, Chao Wei, Kostya S Novoselov, John Gallop, Ling Hao, Zhu Liu, Zhirun Hu, Lin Li   +12 more
doaj   +1 more source

Comparative Feasibility Studies of High Voltage Circuit Breaker Operating in the LFAC System With Different Frequencies

IEEE Access, 2022
With the development of the flexible low frequency transmission technology following the improvement of offshore wind power transmission, it is of great significance to investigate the operation adaptability of the main equipment especially under the low
Wen Wang, Keli Gao, Zhibing Li, Xianglian Yan   +3 more
doaj   +1 more source

On the estimation of low fundamental frequencies [PDF]

2011 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), 2011
In this paper, we analyze the difficult problem of estimating low fundamental frequencies from periodic signals, like those produced by musical instruments. The problem arises when the fundamental frequency is low for a given number of samples as this causes the harmonics to overlap in the frequency domain.
openaire   +1 more source

On the Effectiveness of Low Frequency Perturbations [PDF]

Proceedings of the Twenty-Eighth International Joint Conference on Artificial Intelligence, 2019
Carefully crafted, often imperceptible, adversarial perturbations have been shown to cause state-of-the-art models to yield extremely inaccurate outputs, rendering them unsuitable for safety-critical application domains. In addition, recent work has shown that constraining the attack space to a low frequency regime is particularly effective.
Yash Sharma 0001, Gavin Weiguang Ding, Marcus A. Brubaker   +2 more
openaire   +3 more sources

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani, Rachel K. Peterson, Avani D. Rao, Laurie J. McKenzie, Ahmed Magdy Elmotayam, Leslie Chang, Michael Roth, Susan L. McGovern   +7 more
wiley   +1 more source

Low-Frequency Model for Radiofrequency Absorbers

Journal of Research of the National Institute of Standards and Technology, 1995
A simple model is developed to characterize the behavior of radio-frequency absorbers at low frequency. The absorber is represented by a flat, homogeneous, isotropic slab of lossy material, with effective constitutive parameters. These parameters are determined by a fit to measured data.
openaire   +2 more sources

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben, Marisa H. Huisman, Martha A. Grootenhuis, Femke K. Aarsen, Marita Partanen   +4 more
wiley   +1 more source