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Sound analysis of the magnetically levitated left ventricular assist device HeartMate 3 ™ .
Publication Type: Academic Journal
Source(s): The International journal of artificial organs [Int J Artif Organs] 2019 Dec; Vol. 42 (12), pp. 717-724. Date of Electronic Publication: 2019 Jun 28.
Abstract: Introduction: The HeartMate 3 ™ has shown lower rates of adverse events compared to previous devices due to the design and absence of mechanical bearings. For previous devices, sound analysis emerged as a way to assess pump function. The aims of this s...
Subcutaneous implantable cardioverter-defibrillator and defibrillation testing: A propensity-matched pilot study.
Publication Type: Academic Journal
Source(s): Heart rhythm [Heart Rhythm] 2021 Dec; Vol. 18 (12), pp. 2072-2079. Date of Electronic Publication: 2021 Jun 30.
Abstract: Background: To date, only a few comparisons between subcutaneous implantable cardioverter-defibrillator (S-ICD) patients undergoing and those not undergoing defibrillation testing (DT) at implantation (DT+ vs DT-) have been reported.Objective: The purp...
Robust femtosecond-written chirped and tilted fiber Bragg gratings for Raman filtering in multi-kW fiber lasers.
Publication Type: Academic Journal
Source(s): Optics letters [Opt Lett] 2023 Jul 15; Vol. 48 (14), pp. 3697-3700.
Abstract: We present a robust chirped and tilted fiber Bragg grating (CTFBG) in a large-mode-area double-cladding fiber (LMA-DCF) written by a femtosecond (fs) laser. By implementing the fs-CTFBG into the output end of a high-power fiber laser for Raman filterin...
Optical injection locking of a THz quantum-cascade VECSEL with an electronic source.
Publication Type: Academic Journal
Source(s): Optics letters [Opt Lett] 2023 Jul 15; Vol. 48 (14), pp. 3809-3812.
Abstract: Optical injection locking of a metasurface quantum-cascade (QC) vertical-external-cavity surface-emitting laser (VECSEL) is demonstrated at 2.5 THz using a Schottky diode frequency multiplier chain as the injection source. The spectral properties of th...
Out-of-Band Fiber-Optic Time and Frequency Transfer Using Asymmetric and Symmetric Opto-Electronic Repeaters.
Publication Type: Academic Journal
Source(s): IEEE transactions on ultrasonics, ferroelectrics, and frequency control [IEEE Trans Ultrason Ferroelectr Freq Control] 2023 Jul; Vol. 70 (7), pp. 792-797. Date of Electronic Publication: 2023 Jun 29.
Abstract: Signal repeaters for fiber-optic communication can be realized with back-to-back connected transceivers. This configuration can provide high gain ( ≈ 30 dB) at low cost, and the needed semiconductor lasers and modulators can be realized for practically...
Fatigue damage assessment of complex railway turnout crossings via Peridynamics-based digital twin.
Publication Type: Academic Journal
Source(s): Scientific reports [Sci Rep] 2022 Aug 23; Vol. 12 (1), pp. 14377. Date of Electronic Publication: 2022 Aug 23.
Abstract: Railway turnouts are essential in the train traffic route management for modern railways. Despite significant devotion to railway turnout research, one of their most common failures has not been thoroughly investigated, which is a fatigue over the turn...
A RUL Estimation System from Clustered Run-to-Failure Degradation Signals.
Publication Type: Academic Journal
Source(s): Sensors (Basel, Switzerland) [Sensors (Basel)] 2022 Jul 16; Vol. 22 (14). Date of Electronic Publication: 2022 Jul 16.
Abstract: The prognostics and health management disciplines provide an efficient solution to improve a system's durability, taking advantage of its lifespan in functionality before a failure appears. Prognostics are performed to estimate the system or subsystem'...
A Robust Deep Neural Network for Rolling Element Fault Diagnosis under Various Operating and Noisy Conditions.
Publication Type: Academic Journal
Source(s): Sensors (Basel, Switzerland) [Sensors (Basel)] 2022 Jun 22; Vol. 22 (13). Date of Electronic Publication: 2022 Jun 22.
Abstract: This study proposes a new intelligent diagnostic method for bearing faults in rotating machinery. The method uses a combination of nonlinear mode decomposition based on the improved fast kurtogram, gramian angular field, and convolutional neural networ...
Semiconductor Optical Amplifier (SOA)-Driven Reservoir Computing for Dense Wavelength-Division Multiplexing (DWDM) Signal Compensation.
Publication Type: Academic Journal
Source(s): Sensors (Basel, Switzerland) [Sensors (Basel)] 2023 Jun 18; Vol. 23 (12). Date of Electronic Publication: 2023 Jun 18.
Abstract: Optical signal processing (OSP) technology is a crucial part of the optical switching node in the modern optical-fiber communication system, especially when advanced modulation formats, e.g., quadrature amplitude modulation (QAM), are applied. However,...
Simple polarization-insensitive coherent RoF link with increased capacity.
Publication Type: Academic Journal
Source(s): Optics letters [Opt Lett] 2023 Jun 15; Vol. 48 (12), pp. 3179-3182.
Abstract: A simple polarization-insensitive coherent radio-over-fiber (RoF) link with increased spectrum efficiency and transmission capacity is proposed and demonstrated. Instead of using two polarization splitters (PBSs), two 90° hybrids, and four pairs of bal...