Results 21 to 30 of about 6,445 (164)

Accounting for Acoustic Damping in a Helmholtz Solver [PDF]

open access: yes, 2017
Thermoacoustic Helmholtz solvers provide a cheap and efficient way of predicting combustion instabilities. However, because they rely on the inviscid Euler equations at zero Mach number, they cannot properly describe the regions where aerodynamics may ...
Miguel-Brebion, Maxence   +3 more
core   +2 more sources

Novel Electroactive Therapeutic Platforms for Cardiac Arrhythmia Management

open access: yesAdvanced Science, EarlyView.
Electroactive platforms offer promising applications in cardiac arrhythmia. Based on their energy sources and mechanisms, electroactive platforms are categorized into i) direct electrical stimulation, ii) self‐powered electroactive systems, iii) physical stimuli‐mediated electroactive systems, and iv) conductive systems, and their applications in ...
Juwei Yang   +4 more
wiley   +1 more source

Revisiting paravertebral muscles in European rabbits (Oryctolagus cuniculus) and European brown hares (Lepus europaeus) (Leporidae; Lagomorpha)

open access: yesThe Anatomical Record, EarlyView.
Abstract Domesticated European rabbits (Oryctolagus cuniculus) have long been chosen as laboratory model organisms. Despite this, there has been no definitive study of the vertebral musculature of wild rabbits. Relevant descriptions of well‐studied veterinary model mammals (such as dogs) are generally applicable, but not appropriate for a species ...
Nuttakorn Taewcharoen   +3 more
wiley   +1 more source

Air-coupled PMUT at 100 kHz with PZT active layer and residual stresses: Multiphysics model and experimental validation [PDF]

open access: yes, 2017
In this paper a complete Multiphysics modelling via the Finite Element Method (FEM) of an air-coupled Piezoelectric Micromachined Ultrasonic Transducer (PMUT) is described, with its experimental validation related to the mechanical and acoustic ...
ARDITO, RAFFAELE   +5 more
core   +1 more source

Metallic nanoparticle inks for flexible printed electronics

open access: yesFlexMat, EarlyView.
Abstract Flexible printed electronics represent a cutting‐edge technology leveraging functional inks to fabricate electronic circuits and components on diverse flexible substrates. Various advanced printing processes enable the production of computer‐controlled patterns with superior resolution and flexibility.
Ruimin Cai   +9 more
wiley   +1 more source

Visual Patterns of Diaphragmatic Motion in Acute Respiratory Failure: A Prospective Pilot Study

open access: yesJournal of Clinical Ultrasound, Volume 53, Issue 3, Page 421-428, March/April 2025.
In this prospective bicentric study, we studied the relationship between the appearance of diaphragmatic motion and the etiological diagnosis of patients admitted to the emergency department with ARF. We observed a different visual pattern in patients with pneumonia. This is an interesting result as it allows the diagnosis of pneumonia without the need
Thibaut Markarian   +7 more
wiley   +1 more source

A low-cost electricity generator for rural areas using a travelling-wave looped-tube thermoacoustic engine [PDF]

open access: yes, 2010
This article describes the construction and preliminary testing of a pre-prototype thermoacoustic electricity generator to test the concept of a low-cost device for application in remote or rural areas of developing countries.
Backhaus, S, Jaworski, AJ, Yu, Z
core   +1 more source

Study of Risk Factors and Image Findings of Isolated Abdominal Incidentally Detected Aortic Dissection

open access: yesJournal of Clinical Ultrasound, Volume 53, Issue 3, Page 429-435, March/April 2025.
We detect the risk factors and image characteristics of incidentally detected IAAD. Independent risk factors of IAAD included fatty liver and smoking. In the ultrasound findings of IAAD, an intimal flap was frequently observed. In the CT scan, displacement of intimal calcifications was frequently observed. For suspected IAAD, the abdominal aorta should
Hiromasa Tsubouchi   +15 more
wiley   +1 more source

Generation of electrical energy using lead zirconate titanate (PZT-5A) piezoelectric material: Analytical, numerical and experimental verifications [PDF]

open access: yes, 2016
Energy harvesting is the process of attaining energy from the external sources and transforming it into usable electrical energy. An analytical model of piezoelectric energy harvester has been developed to determine the output voltage across an ...
Ahmad, Nasir   +5 more
core   +1 more source

MR and Ultrasound for Liver Fat Assessment in Children: Techniques and Supporting Evidence

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Hepatic steatosis is a common imaging finding that can be a sign of chronic liver disease, most often associated with metabolic dysfunction‐associated steatotic liver disease (MASLD). Imaging techniques for evaluating steatosis range from basic qualitative assessments to advanced and highly accurate quantitative metrics. Among these, MRI‐based
Suraj D. Serai   +3 more
wiley   +1 more source

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