Results 21 to 30 of about 638,913 (261)

Low frequency signal spectrum analysis for strong earthquakes

Annals of Geophysics, 2012
<p>We examined changes in the spectral composition of the low frequency (LF) subionospheric signals from the NRK transmitter (37.5 kHz) in Iceland that were received in Bari (Italy) relative to the earthquake that occurred in L’Aquila on April 6 ...
Masashi Hayakawa, Konrad Schwingenschuh, Pier Francesco Biagi, Maria Solovieva, Alexander Rozhnoi   +4 more
doaj   +1 more source

Study of the Reasonable Acquisition Frequency Evaluation Method of Midspan Deflection of Medium- and Small-Span Beam Bridges

Applied Sciences, 2023
The objective of this study is to further promote and apply the structural monitoring system to medium and small bridges, given the relative delays in scientific research, technical specifications, and engineering practice for the safety monitoring of ...
Zhengjun Tan, Haijun Wu, Qingcui Tang
doaj   +1 more source

Short-Range SAR Imaging From GHz to THz Waves

IEEE Journal of Microwaves, 2021
Synthetic aperture radar (SAR) is a well-known imaging technique and most commonly used up to the microwave frequency spectrum (below 30 GHz) which provides spatial resolution in the sub-m range.
Aman Batra, Jan Barowski, Dilyan Damyanov, Michael Wiemeler, Ilona Rolfes, Thorsten Schultze, Jan C. Balzer, Diana Gohringer, Thomas Kaiser   +8 more
doaj   +1 more source

A spectrum-of-spectrum filtering method to extract direct and multipath arrivals from simulations and measurements

MethodsX, 2023
In measurements and numerical modelling of wave propagation, undesired interference between direct and multipath arrivals can be reduced using Fourier-based signal processing methods.
Eivind Nag Mosland, Per Lunde, Jan Kocbach   +2 more
doaj   +1 more source

Central Nervous System Neuroblastoma, FOXR2‐Activated: A Pooled Analysis of Published Clinical Outcomes

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) neuroblastoma, FOXR2‐activated, is a recently recognized entity in the WHO CNS5 classification, defined by activation of the FOXR2 transcription factor and unique histopathological features. This review synthesizes available literature and pooled clinical data, providing insight into demographics ...
Sudarshawn Damodharan, Mohamed S. Abdelbaki   +1 more
wiley   +1 more source

Comparative study of two typical one-third octave algorithms in substation noise analysis

Energy Reports, 2022
The one-third octave band (1/3-octave-band) is the most important output item in noise spectrum analysis, which can reflect the frequency characteristics of the noise.
Zhenghai Liao, Zheyuan Gan, Jingzhu Hu, Jun Zhao, Bing Zhou, Jiangong Zhang   +5 more
doaj   +1 more source

Feasibility and Safety of Somato‐Cognitive Coordination Therapy for Cerebellar Ataxia Following Pediatric Brain Tumor Treatment

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cerebellar ataxia after pediatric brain tumor treatment can cause persistent gait, balance, and speech impairment, yet no established rehabilitation strategy exists. Somato‐cognitive coordination therapy (SCCT) is a virtual reality–guided intervention designed to promote sensorimotor integration through visually constrained reaching
Masanobu Takeuchi, Takashi Matsuzawa, Jun Yamanishi, Masahiro Yoshitomi, Junji Ikeda, Shin‐Ichi Tsujimoto, Yasuteru Yamaguchi, Norio Shiba, Dhroov Pathare, Ayumi Kato, Masahiko Hara   +10 more
wiley   +1 more source

The Role of “Adult‐Onset” Cancer Predisposition Genes in Pediatric Cancer: A Comprehensive Review

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Current literature estimates that 10% of pediatric cancers are caused by pathogenic or likely pathogenic (P/LP) germline variants in cancer predisposition genes (CPGs). Variants in CPGs thought to increase cancer risk exclusively during adulthood are referred to as “adult‐onset” CPGs (aoCPGs).
Maria Rozo, Miriam A. Bornhorst, Angela J. Waanders, Sara Zarnegar‐Lumley, Ashwin Lakshman Koppayi, Lucy A. Godley   +5 more
wiley   +1 more source

Measurable Residual Disease Monitoring During Treatment for Pediatric Acute Myeloid Leukemia in First Relapse

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survival after relapse in pediatric acute myeloid leukemia (AML) remains poor, highlighting the critical importance of identifying prognostic factors to guide optimal relapse management. Methods We investigated the prognostic impact of multiparameter flow cytometry (MFC) measurable residual disease (MRD) in 188 patients with first ...
Camilla Poulsen, Kristian Juul Sandahl, Lene Karlsson, Jonas Abrahamsson, Nira Arad‐Cohen, Daniel Cheuk, Barbara De Moerloose, Linda Fogelstrand, Jose Maria Fernandez Navarro, Bianca F. Goemans, Kirsi Jahnukainen, Gertjan Kaspers, Zhanna Kovalova, Monica Cheng Munthe‐Kaas, Ulrika Norén‐Nyström, Josefine Palle, Ramune Pasauliene, Cornelis Jan Pronk, Kadri Saks, Anne Tierens, Henrik Hasle, Kristian Løvvik Juul‐Dam   +21 more
wiley   +1 more source

Quantitative analysis method of electromagnetic spectrum parameter leakage risk in fleet [PDF]

Zhihui kongzhi yu fangzhen
In order to prevent the leakage of electromagnetic spectrum parameters of frequency equipment used by fleet effectively and ensure the safety of frequency usage, a quantitative analysis method of electromagnetic spectrum parameter leakage risk based on ...
WANG Di, ZHAO Luda, LUO Sheng, WANG Lei
doaj   +1 more source