Archive

This paper presents an engineering approach for real-time ECG signal processing on a mobile phone with remote transmission to a medical center. The method uses an IIR low-pass filter and Hilbert transform to support R-peak detection and arrhythmia alerting. Reported algorithm performance includes 96.97% sensitivity…

This study evaluated a fractional radiofrequency microneedle system for treating facial atrophic acne scars in Asian subjects over 1-, 3-, and 6-month follow-up after three monthly sessions. Of 26 completers, the most common self-reported improvement category at 6 months was 26–50% improvement, and scar volume…

This paper presents a two-compartment computational model of CA3 pyramidal neurons to investigate how extracellular electric fields influence neuronal behavior via ephaptic transmission. The model is matched to subthreshold experimental responses at rest and used to analyze how DC and sinusoidal fields affect…

This paper describes an engineering application of electromagnetic field (EMF) treatment to mitigate biofouling in seawater-cooled tubular heat exchanger-condensers. After allowing a biofilm to stabilize, EMF treatment was applied and was reported to precipitate dissolved ions and contribute to partial…

This cross-sectional survey sampled general practitioners in Germany to assess EMF knowledge and its relationship to concern about EMF health risks. Four latent knowledge groups were identified, with 43.1% giving mainly correct answers and 14.0% answering mostly "don't know". Concern was not related to knowledge…

This multicentre, randomized, double-blind, placebo-controlled trial in Japan evaluated lansoprazole 15 mg daily for 4 weeks in functional dyspepsia diagnosed by Rome III criteria. Lansoprazole showed higher overall symptom relief than placebo at week 4 and improved epigastric pain and burning scores. Postprandial…

This article describes a pilot mobile-phone-based support system (“celemedicine”) for mid-level rural health workers in Gulmi District, Nepal, enabling free calls to three general practitioner doctors at the district hospital. The intervention aims to improve appropriate referral and connectivity between peripheral…

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 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 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 paper theoretically investigates magnetic-field-induced phenomena in bent-core nematic liquid crystals, focusing on how molecular biaxiality modifies the response. Using molecular field and Landau theory, it reproduces reported experimental trends such as an enhanced Cotton-Mouton effect and an increase in the…

This paper presents a theoretical model of a single ferromagnetic particle with finite coupling between its magnetic moment and particle body in a rotating magnetic field. It describes synchronous and asynchronous motion regimes, including planar motion at low frequencies and a precession regime at high frequencies,…

This engineering simulation study models colloidal particle transport and deposition in a membrane filtration channel at a particle volume fraction of 10%. The model couples a dynamically updating crossflow velocity field with particle-particle and particle-membrane interaction potentials (electrostatic double layer…

This paper describes development and testing of a Wi-Fi–enabled tele-localisation prototype for radiotherapy field localisation using a personal digital assistant (PDA). Trial tests on 30 subjects across multiple treatment regions reported localisation times under 1.5 minutes and similar transmission speeds across…

This engineering paper presents an intraoral version of the Tongue Drive System (iTDS) built into a dental retainer. It uses four 3-axis magnetoresistive sensors to detect tongue motion and transmits digitized data wirelessly via a dual-band 27/432 MHz transmitter, with configuration updates via a 13.56 MHz inductive…

This physics study analyzes circular wave packets in high Rydberg states produced by applying a pulsed electric field to extreme Stark states. It reports a position-dependent energy gradient that creates a correlation between principal quantum number and spatial coordinate, which appears insensitive to the initial…

This study compared two non-invasive acupoint stimulation methods—TEAS and PEMF—as alternatives to manual acupuncture for recovery from exercise-induced muscle fatigue. Using 2 Hz stimulation (PEMF magnetic flux 30.92 mT), the authors report faster recovery of EMG median frequency and improved peak torque recovery in…

This paper presents a theoretical description of nonequilibrium dynamics in a three-dimensional Fermi-Hubbard model driven by an external electric field. The authors report direction-dependent damping of Bloch oscillations and the emergence of a long-lived transient prethermalized state over a broad range of field…

This physics study uses analytical calculations and Monte Carlo simulations to determine ground-state structures of monodisperse ferrofluid monolayers under external magnetic fields. It reports structural transitions depending on whether the field is perpendicular or parallel to the monolayer plane, with different…