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1841
Performance of OFDM: FSO Communication System with Hybrid Channel Codes during Weak Turbulence
Published 2019-01-01“…The performance of orthogonal frequency division multiplexing- (OFDM-) based free-space optics (FSO) depends on various parameters such as number of subcarriers, base band modulation, nature of laser beam, turbulence modelling, and much more. …”
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1842
The Challenges and Opportunities for Performance Enhancement in Resonant Fiber Optic Gyroscopes
Published 2025-01-01“…In a conventional RFOG, a single-wavelength laser source is used to generate counter-propagating waves in a ring resonator, for which the phase difference is measured in terms of the resonant frequency shift to obtain the rotation rate. …”
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1843
Design considerations for wavefront sensing with self-referencing interferometers in adaptive optics systems
Published 2025-01-01“…The SRI is developed to aid adaptive optics (AO) control, via deformable mirrors, in correcting wavefront error from atmospheric turbulence in (laser-based) free-space optical communication links. …”
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1844
Experimental Study on Directional Fracture Blasting of Cutting Seam Cartridge
Published 2019-01-01“…Since the cutting seam cartridge has sound directional breaking effect, in order to explore its blasting wave mechanism, an experimental study was conducted on the blast wave of a cutting seam cartridge using a high-speed laser schlieren system and air overpressure test system. …”
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1845
Coherent Anti-Stokes Hyper-Raman Spectroscopy
Published 2025-01-01“…Observed signals are proven to come from the CAHRS process through various experiments concerning the dependences of the signals on incident laser powers, time-delay, polarizations, and selection rules of molecular vibrations. …”
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1846
Non-Invasive Techniques for Monitoring Cultural Heritage: Change Detection in Dense Point Clouds at the San Pietro Barisano Bell Tower in Matera, Italy
Published 2024-12-01“…Dense point clouds, obtained via laser scanning, offer detailed 3D representations of heritage structures, facilitating the precise monitoring of changes over time. …”
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1847
Identification of Damage in a Beam Structure by Using Mode Shape Curvature Squares
Published 2010-01-01“…The experimental modal frequencies and the corresponding mode shapes are obtained by using a scanning laser vibrometer with a PZT actuator. From the mode shapes, mode shape curvatures are obtained by using a central difference approximation. …”
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1848
Preparation of Microfiber Grating for Real-Time Sensing of Escherichia Coli Concentration
Published 2020-01-01“…In this article, microfiber gratings (MFGs) were fabricated by using a high-frequency CO2 laser. The number of periods is 30, and the length of the period is 600 μm. …”
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1849
The Modal and Harmonic Analysis of a Cylindrical Horn Designed for an Airborne Ultrasonic Dryer
Published 2024-12-01“…The experimental data measured by a laser vibrometer are also used for validating the results of numerical simulation.…”
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1850
The Intrinsic Room-Temperature Ferromagnetism in ZnO:Co Thin Films Deposited by PLD
Published 2012-01-01“…c-axis preferential orientated ZnO:Co thin films were synthesized on c-plane sapphire substrates by using pulsed laser deposition (PLD) technique in an oxygen-deficient ambient. …”
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1851
Investigations on Polymeric Nanoparticles for Ocular Delivery
Published 2019-01-01“…The confocal scanning laser microscopy (CSLM) studies also confirmed the ability of nanoparticles to penetrate into deeper layers of cornea. …”
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1852
Space-Charge Limitation of a Femtosecond Photoinjector
Published 2011-01-01“…Experimental investigation of a compact 40-kV diode-type photoelectric DC gun driven by 100 fs laser pulses revealed that the space-charge-limited current density could exceed 30 kA/cm2 and that the density increased linearly with the accelerating voltage. …”
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1853
Polymorphous Low-Grade Adenocarcinoma of the Tongue Base Treated by Transoral Robotic Surgery
Published 2015-01-01“…A 54-year-old male presenting with a mass at the base of the tongue performed transoral laser microsurgery. The pathologic diagnosis was polymorphous low-grade adenocarcinoma. …”
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1854
Measurement of Velocity and Temperature Profiles in the 1/40 Scaled-Down CANDU-6 Moderator Tank
Published 2015-01-01“…With a transparent moderator tank model, a flow field is visualized with a particle image velocimetry (PIV) technique under an isothermal state, and the temperature field is measured using a laser induced fluorescence (LIF) technique. A preliminary CFD analysis is also performed to find out the flow, thermal, and heating boundary conditions with which the various flow patterns expected in the prototype CANDU-6 moderator tank can be reproduced in the experiment.…”
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1855
Asphalt Mixture Segregation Detection: Digital Image Processing Approach
Published 2017-01-01“…The visual inspection method has commonly been used to determine pavement texture and in-place core density test used for verification. Furthermore, laser-based devices, such as the Florida Texture Meter (FTM) and the Circular Track Meter (CTM), have recently been developed to evaluate the asphalt mixture texture. …”
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1856
First Reported Case of Proliferative Retinopathy in Hemoglobin SE Disease
Published 2014-01-01“…Hemoglobin analysis revealed Hb SE heterozygosity. Sector laser photocoagulation to areas of nonperfusion in both eyes resulted in regression of the peripheral neovascularization over a period of 6 months. …”
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1857
A Novel and Robust Method for Investigating Fungal Biofilm
Published 2025-01-01“…We detail a step-by-step procedure for creating a substratum for biofilm growth and measuring biofilm thickness using confocal laser scanning microscopy (CLSM) and ultrastructure by scanning electron microscopy (SEM). …”
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1858
The Ontological Multiplicity of Digital Heritage Models: A Case Study of Yunyan Temple, Sichuan Province, China
Published 2025-01-01“…This paper investigates the ontological multiplicity of digital heritage objects within the context of a digital twin project focused on Yunyan Temple, Sichuan Province, China—a site threatened by natural disasters. The project employs laser scanning and photogrammetry to generate high-resolution 3D models at varying levels of detail. …”
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1859
Optimal control of a Bose-Einstein condensate in an opticallattice: the non-linear and two-dimensional cases
Published 2025-02-01“…A wide variety of target states can be achieved with high precision by varying only the laser phases setting the lattice position. We discuss the physical relevance of the different results and the future directions of this work.…”
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1860
A Case of Secondary Epiretinal Membrane Spontaneous Release
Published 2016-01-01“…During the follow-up, slight visual deterioration, progressive deformation of the retinal profile, and an increase in diffuse retinal edema were observed. No surgical or laser treatment was performed. On the next visit, the spontaneous ERM separation with residual parapapillary fixation, the increase in visual acuity (0.9), and the decrease in retinal thickness were revealed. …”
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