Results 61 to 70 of about 1,458 (254)

P5K-4 High-Overtone Self-Focusing Acoustic Transducer for High Frequency Ultrasonic Imaging

, 2007
This paper reports the use of high-overtone selffocusing acoustic transducers for high frequency ultrasonic imaging application. For an acoustic transducers working for ultrasonic imaging, the resolution is primarily determined by the acoustic wavelength,
Shung, K. Kirk, Q. Zhou, Kim, Eun Sok, Zhou, Qifa, D. Wu, E. S. Kim, Wu, Dawei, H. Yu, Yu, Hongyu, K. K. Shung, C.-Y. Lee, Lee, Chuang Yuan   +11 more
core   +1 more source

Integration of Serum Neurofilament Light Chain and Cortical Dysfunction Improves Diagnostic Accuracy in ALS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To determine whether integration of serum neurofilament light chain (NfL) and cortical dysfunction improves diagnostic accuracy in amyotrophic lateral sclerosis (ALS) when applied alongside the Gold Coast criteria (GCC). Methods In this prospective study, 148 participants with suspected ALS were recruited (101 ALS and 47 with ALS ...
Aicee Dawn Calma, Nathan Pavey, Yukiko Tsuji, Amirul Ab Ghapar, Mehdi A.J. van den Bos, Bronwen Orden, Grace Lee, Linda Mekhael, Julie Ryder, Cláudia Santos Silva, David McDonald, Fakhria Kakar, Con Yiannikas, Matthew C. Kiernan, David A. Brown, Parvathi Menon, Steve Vucic   +16 more
wiley   +1 more source

A Case Study on Sonic Heritage and Acoustic Profiling of the Bamboo Bass Guitar

BioResources
The acoustic properties of a custom-built bamboo bass guitar (BBG) were examined in this study as a sustainable substitute for traditional wooden instruments. To evaluate tonal and harmonic behavior, the BBG which was made completely of bamboo components
Ahmad Faudzi Musib, Aaliyawani Ezzerin Sinin, Sinin Hamdan, Khairul Anwar Mohamad Said, Khairil Anwar Dean Kamarudin   +4 more
doaj  

OVERTONE SPECTRA AND LOCAL MODE ANALYSIS OF CHLOROTRIFLUOROMETHANE

, 1985
Author Institution: Department of Chemistry, University of RochesterUsing Photocacoustic Spectroscopy and Fourier Transform Infra-lied Spectroscopy, the fundamental and overtone spectra of chlorotrifluoromethane up to the v=5 manifold was obtained ...
Perry, David S., De Souza, A. M.
core  

Artificial Intelligence in Systemic Sclerosis: Clinical Applications, Challenges, and Future Directions

Arthritis Care &Research, EarlyView.
Systemic sclerosis (SSc) is a rare autoimmune disease defined by immune dysregulation, vasculopathy, and progressive fibrosis of the skin and internal organs. Despite advances in care, major complications such as interstitial lung disease (ILD) and myocardial involvement remain the leading causes of morbidity and mortality.
Cristiana Sieiro Santos, José Miguel Sequí‐Sabater, Diego Benavent   +2 more
wiley   +1 more source

Exploring low-amplitude variability in first-overtone Cepheids with TESS

Context. Classical Cepheid stars that pulsate in the first overtone radial mode often exhibit additional periodicities at the millimagnitude level. Extensive studies of the OGLE data of the Magellanic Clouds have revealed distinct groups based on the ...
A. Bódi, H. Netzel, E. Plachy
core   +1 more source

Adaptive Observer for Coupled Wave PDE and Infinite ODE With Sampled Data and Unknown Input: Application to Brain Hemodynamics Estimation

International Journal of Adaptive Control and Signal Processing, EarlyView.
This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir, Sarah Mechhoud, Taous‐Meriem Laleg‐Kirati   +2 more
wiley   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

From light-scattering measurements to polarizability derivatives in vibrational Raman spectroscopy: The 2 nu(5) overtone of SF6

, 2013
The room-temperature isotropic spectrum of SF6 was recorded at the frequency of the 2 nu(5) overtone by running high-sensitivity incoherent Raman experiments for two independent polarizations of the incident beam and for gas densities varying from 2 to ...
Rachet, Florent, Chrysos, Michel, Kremer, David, F. Rachet, M. Chrysos, D. Kremer   +5 more
core   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source