Results 71 to 80 of about 152,362 (259)

Functional assessment in acute coronary syndrome: a systematic review of acute versus staged interventions

open access: yesREC: Interventional Cardiology (English Ed.)
Introduction and objectives: Several tools have been implemented to assess the functional significance of coronary lesions. Their reliability in the management of acute coronary syndrome (ACS) might be affected by alterations in the acute phase that go ...
Federico Vergni   +5 more
doaj   +1 more source

Superluminal, subluminal, and negative velocities in free-space electromagnetic propagation

open access: yes, 2010
In this Chapter the time-domain analysis of the velocity of the electromagnetic field pulses generated by a spatially compact source in free space is presented.
Bajcsy   +25 more
core   +1 more source

Nonlinear magnetization dynamics of antiferromagnetic spin resonance induced by intense terahertz magnetic field [PDF]

open access: yes, 2016
We report on the nonlinear magnetization dynamics of a HoFeO3 crystal induced by a strong terahertz magnetic field resonantly enhanced with a split ring resonator and measured with magneto-optical Kerr effect microscopy.
Hirori, H   +4 more
core   +2 more sources

Copper‐Based Crystalline‐Metallic Glass Composite Thin Films: A Novel Material with Enhanced Strength and Thermally Stable Nanotwins

open access: yesAdvanced Functional Materials, EarlyView.
A Cu‐based crystal‐glass composite with high‐density twins is identified by a fast screening technique using combinatorial sputtering together with XRD and nanoindentation mapping. This bamboo‐like structure demonstrates homogenous plastic flow and retains high strength during in situ high temperature tests, up to 1 GPa at 550°C, owing to those ...
Chunhua Tian   +10 more
wiley   +1 more source

Simplifying the Assessment of Coronary Artery Stenosis by Enhancing Instantaneous Wave Free Ratio [PDF]

open access: yesArchives of Cardiovascular Diseases Supplements, 2017
Instantaneous wave free ratio (iFR) does not require adenosine, but has a relatively wide intermediate range where functional assessment remains inconclusive. In this pilot study, we sought to enhance iFR through with the use of intracoronary (IC) saline (iFRs) and contrast media (iFRc) and determine whether these techniques correlated well with ...
Spagnoli, Vincent   +8 more
openaire   +4 more sources

Numerical comparison of pipe-column-separation models [PDF]

open access: yes, 1994
Results comparing six column-separation numerical models for simulating localized vapor cavities and distributed vaporous cavitation in pipelines are presented.
Angus R. Simpson   +5 more
core   +1 more source

In Situ Amidation‐Derived Interfacial Modulation for Homogeneous Ultra‐High Nanoparticle Loading Toward Robust and Flexible Piezoelectric Composites

open access: yesAdvanced Functional Materials, EarlyView.
Synergistic interfacial strategy between inorganic ceramic fillers and polymer chains effectively inhibit particle aggregation and interfacial incompatibility. complex covalent and non‐covalent interfacial interactions promote superior uniformity, ultra‐high ceramic filler loading, and strong grain‐to‐grain connectivity, thereby enabling the ...
HakSu Jang   +20 more
wiley   +1 more source

Bio‐Inspired Multimodal Hardware Front‐End Enabled by 2D Floating‐Gate Memory for UAV Perception

open access: yesAdvanced Functional Materials, EarlyView.
A MoS2/h‐BN /graphene floating‐gate memory underpins a bio‐inspired multimodal front end that integrates visual, inertial, and airflow cues. A 4 × 4 FG memory array encodes temporal intensity differences, while IMU‐ and airflow‐driven threshold modulation suppresses self‐motion artifacts, enabling fast, low‐power, robust autonomous UAV tracking and ...
Lianghao Guo   +11 more
wiley   +1 more source

Novel Assessment of Ischemia in Patients With Anomalous Right Coronary Artery

open access: yesJACC: Case Reports, 2019
Anomalous right coronary arteries are usually benign; however, sudden death owing to myocardial ischemia, especially during exertion, have been reported in patients with intramural or interarterial course, which is likely due to dynamic obstruction.
Lerin C. McCray, MD   +3 more
doaj   +1 more source

Investigation into the Strouhal numbers associated with vortex shedding from parallel-plate thermoacoustic stacks in oscillatory flow conditions [PDF]

open access: yes, 2010
This paper investigates vortex shedding processes occurring at the end of a stack of parallel plates, due to an oscillating flow induced by an acoustic standing wave.
Jaworski, Arthur J.   +2 more
core   +1 more source

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