Results 71 to 80 of about 6,732,839 (289)

S-Transform–Based Time–Frequency Analysis of Backscattered Acoustic Signals [PDF]

E3S Web of Conferences
Acoustic scattering offers a reliable non-destructive route for investigating submerged monolayer cylindrical shells, enabling wall thickness, material properties, and degradation effects to be inferred without compromising structural integrity.
Nahraoui Youssef, Elouaham Samir, Elhoucein Aassif   +2 more
doaj   +1 more source

The Fate (Outcome) of Clinically Apparent Single Lesion and Oligofocal Nephroblastomatosis Treated According to SIOP/GPOH Protocols for Wilms Tumor

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The management of clinically apparent single lesions or oligofocal nephroblastomatosis, a facultative precursor of nephroblastoma, remains debated. Methods We retrospectively analyzed 37 patients with clinically apparent single or oligofocal nephroblastomatosis (two to three lesions per kidney) among 2347 patients registered between
Nils Welter, Jens‐Peter Schenk, Jenny Wegert, Manfred Gessler, Leo Kager, Stefan Wagenpfeil, Marina Müller, Jean‐Michel Wolff, Joerg Fuchs, Steven W. Warmann, Clemens‐Magnus Meier, Jochen Hubertus, Christian Rübe, Christian Vokuhl, Patrick Melchior, Lena Tschirner, Norbert Graf, Rhoikos Furtwängler   +17 more
wiley   +1 more source

Detection of Coherent Vorticity Structures using Time-Scale Resolved Acoustic Spectroscopy

, 1998
We describe here an experimental technique based on the acoustic scattering phenomenon allowing the direct probing of the vorticity field in a turbulent flow.
Arneodo, Baerg, Baudet, Benzi, Brachet, Choi, Christophe Baudet, Chu, Cohen, Colonius, Douady, Engler, Engler, Flandrin, Gilbert, Gromov, Hlawatsh, Ho, Jeong, Korman, Kraichnan, Lund, Lundgren, Lundgren, Nelkin, Noullez, Obukhov, Olivier Michel, Shafi, She, Tsinober, Wallace, Watkins, William J. Williams   +33 more
core   +2 more sources

A High‐Sensitivity Circulating Nucleic Acid Sequencing Assay for Assessing Treatment Response to Alectinib in a Pediatric Patient With ALK‐Rearranged Non–Small Cell Lung Cancer

Pediatric Blood &Cancer, EarlyView.
Alberto D. Guerra, Nicholas F. Evageliou, Vandana Batra, Kristen L. Dalton, Stephanie Ortel, Usman Ashraf, Tricia R. Bhatti, Lisa J. States, Lea F. Surrey, Theodore W. Laetsch   +9 more
wiley   +1 more source

Efficacy and Safety Analysis of Roxarestat in Regulating Renal Anemia in Patients on Maintenance Hemodialysis

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley   +1 more source

Power Quality Analysis Using Bilinear Time-Frequency Distributions

EURASIP Journal on Advances in Signal Processing, 2010
Bilinear time-frequency distributions (TFDs) are powerful techniques that offer good time and frequency resolution of time-frequency representation (TFR).
Sha'ameri AhmadZuri, Abdullah AbdulRahim   +1 more
doaj   +2 more sources

Statistical Analysis for Time Modulation-Based Frequency Diverse Array Beampattern

IEEE Access, 2019
Frequency diverse array (FDA) has received much attention due to its both range- and angle-dependent beampatterns. However, the range-angle coupling and time-variant beampattern in FDA may affect its applicability.
Hui Chen, Wen-Qin Wang, Yan-Shuo Cui, Yi Liao   +3 more
doaj   +1 more source

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada, Makoto Harada, Tadahiko Kikugawa, Takeshi Nakata, Koji Hashimoto, Tsuneo Konta, Yuji Kamijo   +6 more
wiley   +1 more source

Time/frequency analysis of contact-friction instabilities. Application to automotive brake squeal. [PDF]

, 2010
Robust design of silent brakes is a current industrial challenge. Braking systems enter in the more general context of unstable systems featuring contact friction interaction.
BALMES, Etienne, LEMAIRE, Rémi, PASQUET, Thierry, VERMOT DES ROCHES, Guillaume   +3 more
core   +2 more sources

Time-Frequency Analysis of Sjöstrand’s Class

Revista Matemática Iberoamericana, 2006
We investigate the properties an exotic symbol class of pseudodifferential operators, Sjöstrand's class, with methods of time-frequency analysis (phase space analysis). Compared to the classical treatment, the time-frequency approach leads to striklingly simple proofs of Sjöstrand's fundamental results and to far-reaching generalizations.
openaire   +6 more sources