Archive

This study evaluated whether the NAL-NL1 hearing-aid fitting formula is appropriate for hearing-impaired mobile communication, comparing it with a modified fitting formula. Speech materials were low-pass filtered at 8 kHz and presented through a mobile phone for word-recognition testing in quiet and noisy conditions.…

This engineering paper models the driving system of a centrifugal blood pump for extracorporeal circulation, focusing on disc magnetic coupling. It uses a three-dimensional static magnetic field edge element method in Ansys to numerically calculate magnetic fields and analyze how coupling parameters relate to…

This prospective, parallel-group randomized controlled trial tested whether frequent mobile phone messaging could support lifestyle modification to prevent type 2 diabetes in high-risk Indian men. The intervention group had a lower incidence of type 2 diabetes than the control group receiving standard advice at…

This paper describes a SAR measurement system for a 3G mobile phone (1718.5 MHz) using brain phantom material in a Perspex box sized to a small rat volume, with induced fields measured at multiple locations. SAR was computed from induced-field measurements and also estimated experimentally via temperature rise, with…

This study evaluated pulsed radiofrequency (PRF) neuromodulation of the suprascapular nerve in 11 patients with chronic shoulder pain from adhesive capsulitis and/or rotator cuff tear. Pain (VAS) and shoulder-related quality of life/function (OSS) were assessed before treatment and monthly after PRF for up to 9…

This study evaluated a cosmetic radiofrequency device (Accent) for facial wrinkle reduction in 45 women receiving four weekly sessions. Patient satisfaction was higher at 6 months than at 1 month after treatment, and the authors suggest the approach may be effective for facial rejuvenation. The abstract emphasizes…

This paper proposes and simulates actively-controlled second harmonic generation in a silicon nitride ring resonator. Quasi-phase matching is induced by a periodic static electric field generated by voltage applied to electrodes along the ring. Simulations report a calculated efficiency of -21.67 dB at 60 mW pump…

This engineering study investigates resonance behavior in diabolo metal bar optical antennas using FDTD numerical simulations and a dipole oscillator model. It reports that narrowing the antenna waist increases optical absorption and near-field enhancement at resonance and produces a red-shift in resonant…

This engineering/optics study examines focusing properties of a radially polarized beam interacting with gold metal cubes arranged along the beam propagation direction. It reports >20d7 electric field enhancement between two cubes separated by bb/10 on the optical axis, linked to a strong longitudinal field and…

This engineering study describes a method to improve the sensitivity of Faraday-effect-based heterodyning fiber laser sensors for magnetic field measurement. It reports an inverse relationship between magnetic-field sensitivity and intra-cavity linear birefringence, supported by theory and experimental birefringence…

This engineering study reports theoretical analysis and experimental demonstration of an S-tapered optical microfiber integrated with ferrofluid for magnetic-field tunability. The transmission spectrum and dip wavelengths were found to vary with magnetic-field intensity, with a Langevin-like response and a linear…

This engineering study describes using antenna-coupled microwave radiation to enhance laser-induced breakdown spectroscopy (LIBS) emission from a Gd2O3 sample at reduced pressure. The authors report substantially increased plasma emission intensity, higher-temperature plasma, and longer emission lifetime when…

This engineering study examines how the spectral mismatch between mobile phone flash LEDs and modern display gamuts influences smartphone camera color reproduction. Using a CIECAM02-based metric and an evaluation method grounded in raw camera data and a Digital ColorChecker SG, the authors propose optimized flash LED…

This paper presents a theoretical and experimental demonstration of a photonic RF phase shifter based on a dual-parallel Mach-Zehnder modulator using a two-drive scheme. The approach aims to mitigate residual optical carrier effects and avoid a lowest-frequency limitation from an optical filter by driving the…

This occupational exposure assessment monitored surgeons during 11 surgeries using monopolar electro surgery units and measured electric and magnetic field strengths during cutting and coagulating modes. Electric fields near the cable at 10 cm were reported in the hundreds of V/m, while magnetic fields were

This paper proposes a reversible approach to tune Mie scattering resonances in random media using external low induction magnetic fields. The experimental demonstration uses ultrasound in emulsions of fluorinated ferrofluid droplets dispersed in a Bingham fluid. Magnetic-field-induced droplet deformation is reported…

This experimental study measured the electric field inside a plasma channel formed during a high-pressure nanosecond discharge in hydrogen using coherent anti-Stokes Raman scattering. The authors report root-mean-square electric field intensities up to 30 kV/cm in the plasma channel. Polarization measurements…

This paper analyzes compressible Hall magnetohydrodynamic turbulence with an external strong guide magnetic field using signed measure analysis. In simulations varying ion skin depth to modulate the Hall term, increasing the Hall term is reported to reduce the fractal dimension of current and vorticity sheets. The…