Results 71 to 80 of about 75,809 (268)

Manufacturing Continuous Fiber‐Reinforced Printing Filaments: Development of a Post‐Consolidation Unit

open access: yesAdvanced Engineering Materials, EarlyView.
A novel, temperature‐controlled post‐consolidation unit is developed to test its potential to improve the melt impregnation process used to manufacture continuous fiber‐reinforced filaments for additive manufacturing of high‐performance thermoplastics.
Daniel Beermann   +2 more
wiley   +1 more source

A Hybrid Double Zero MVDR Beamformer That is Universal Over the Number of Second Order Notches

open access: yesIEEE Access
In a dynamic environment, close-range and fast-moving interferers transit the resolution cells rapidly, challenging the minimum variance distortionless response (MVDR) beamformer’s ability to place accurate notches in each interferer’s ...
Savas Erdim, John R. Buck
doaj   +1 more source

Perception and coding of high-frequency spectral notches: Potential implications for sound localization

open access: yesFrontiers in Neuroscience, 2014
The interaction of sound waves with the human pinna introduces high-frequency notches (5-10 kHz) in the stimulus spectrum that are thought to be useful for vertical sound localization.
Ana eAlves-Pinto   +2 more
doaj   +1 more source

Reversible Kernohan notch [PDF]

open access: yesNeurology, 2007
A 55-year-old patient experienced episodic headaches, left facial twitching, and increasing falls over 2 years. Multiple yearly brain MRs (figure 1, top panels) revealed a large right frontal arachnoid cyst with evolving …
J M, Oster   +4 more
openaire   +2 more sources

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

open access: yesAdvanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner   +22 more
wiley   +1 more source

Metastable Quantum Phase Transitions in a Periodic One-dimensional Bose Gas: Mean-Field and Bogoliubov Analyses

open access: yes, 2010
We generalize the concept of quantum phase transitions, which is conventionally defined for a ground state and usually applied in the thermodynamic limit, to one for \emph{metastable states} in \emph{finite size systems}.
A. J. Leggett   +8 more
core   +1 more source

Characterization of defects in plates using shear and Lamb waves [PDF]

open access: yes, 2017
This work investigates the interaction of shear and Lamb waves with different kinds of defects in plates, in view of applications to defect characterization purposes. Using a finite element model, the reflection and transmission coefficients of shear and
Achillopoulou, Dimitra, Pau, Annamaria
core   +1 more source

Micropatterned Biphasic Printed Electrodes for High‐Fidelity on‐Skin Bioelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Micropatterned biphasic printed electrodes achieve unprecedented skin conformity and low impedance by combining liquid‐metal droplets with microstructured 3D lattices. This scalable approach enables high‐fidelity detection of ECG, EMG, and EEG signals, including alpha rhythms from the forehead, with long‐term comfort and stability.
Manuel Reis Carneiro   +4 more
wiley   +1 more source

Effect of micro-notches on fatigue strength of electrodeposited nanocrystalline nickel thin films

open access: yesMATEC Web of Conferences, 2018
The effect of micro-notches on the fatigue strength of nickel thin films was studied. Two types of thin films with 10 μm thickness were produced by electrodeposition using sulfamate solution without and with brightener: ultra-fine grained film (UFG) with
Tanaka Keisuke   +2 more
doaj   +1 more source

Minima in cubic distortion-product otoacoustic emission input/output functions due to distributed primary sources [PDF]

open access: yesJASA Express Letters
Input/output (I/O) functions of distortion-product otoacoustic emissions (DPOAEs) may contain sudden amplitude minima (notches) although they are measured in animals with a negligible reflection source.
Václav Vencovský, Aleš Vetešník
doaj   +1 more source

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