Archive

This engineering paper describes low-power wireless sensor nodes and a cluster-based dynamic-tree hierarchical WSN architecture for monitoring historical buildings and wooden artifacts for early pest detection. The authors report simulation and demonstration results indicating improved scalability and reliability…

This engineering study describes an experimental setup using a small electret condenser microphone connected to a notebook/PC to detect extremely low frequency signals. Using a small air cell made from a drilled DVD plate with a speaker and microphone on opposite sides, the microphone captured signals in the 0.5–20…

This experimental and modeling study examined pulsed electric field (PEF) permeabilization in several fruit and vegetable tissues at 293 K using 1000 μs pulses and field strengths of 400 and 1000 V·cm(-1). While electroporation theory predicts greater damage in tissues with larger cells, the authors report this…

The paper evaluates how pulsed electric field (PEF) processing affects milk volatile compounds compared with HTST pasteurization (75 °C, 15 s). GC-MS detected 37 volatiles and reported some compositional differences between PEF and pasteurized milk, including increased aldehydes and lower methyl ketones with PEF.…

This engineering study describes modifying MRI RF transmit coil electric-field distributions to create electric field-free zones without substantially changing transmit sensitivity. Phantom experiments are reported to show reduced implant heating when a zero electric-field plane is aligned with the implant location.…

This study evaluated MRI safety parameters for three commercial veterinary RFID microchips at 1 T, assessing movement forces, heating, artifacts, and device function. Translation and torque were reported to be larger than expected from normal activity, but no significant heating was observed and microchip function…

This paper presents a theoretical model of giant phospholipid vesicle deformation in an alternating-current electric field, based on minimizing membrane bending energy and electric-field energy. The model treats the membrane and surrounding aqueous media as leaky dielectrics and reports good quantitative agreement…

This experimental study examined how pulsed electric field (PEF) processing parameters affect cell membrane rupture in onion tissue disks, using ion leakage as the primary integrity measure. Disintegration efficiency increased with field strength up to 500 V/cm and varied with pulse width, pulse number, and…

This condensed-matter physics study examined how high magnetic fields and pressure affect magnetization, transport, and thermodynamic properties of the intermediate-valence compound YbPd. The authors report that the Yb valence state and two first-order transitions are stable up to 55 T, while increasing pressure…

This paper presents a mesoscopic transport modeling framework (NEGF plus a real-space π-orbital model) to study how a uniform perpendicular magnetic field affects electronic transport in armchair graphene nanoribbons. The authors report width-dependent equilibrium current profiles and edge-localized transport under…

This paper is a review of two-dimensional electron dynamics in microscopically inhomogeneous magnetic fields, focusing on magnetic potentials varying on scales smaller than the mean free path. It covers early work on localization in random magnetic fields, methods to fabricate magnetic potentials, and drift-diffusion…

This paper discusses the Czjzek model for distributions of electric field gradient (EFG) tensors in disordered solids and highlights its underlying assumptions and characteristics. It then introduces an extended model that combines a defined local EFG environment with an adjustable Gaussian (Czjzek) noise term to…

This study reports slow relaxation of magnetoresistance in selectively doped p-GaAs-AlGaAs structures following application of a magnetic field. The authors emphasize efforts to rule out temperature fluctuation artifacts and state that the main relaxation features remain. They interpret the phenomenon using a…

This in vitro study tested electromagnetic compatibility between passive RFID readers and 15 pacemakers plus 15 ICDs across 134 kHz, 13.56 MHz, and 915 MHz bands. EMI reactions were common with low-frequency RFID and rare with high-frequency RFID, while no reactions were observed with ultra-high-frequency or…

This engineering/materials study synthesized nanocrystalline hydroxyapatite bioceramic powder using microwave radiation and then characterized the resulting material. The authors report highly crystalline HAp nanopowder with nanoscale size, mixed morphology, and elemental composition consistent with the HAp phase.…

This engineering-focused study examines failure of needle-shaped specimens exposed to very high electric fields in field-ion microscopy. The authors report experiments indicating breakdown may be initiated by nanoparticles detached from a point anode. They propose a mechanism in which expanding cathode plasma…

This engineering study measures and simulates screening current induced magnetic fields (SCF) in a Bi2223-tape HTS insert used in an LTS/HTS NMR magnet at 77 K. SCF was induced by the insert self-field, an external 5-T background magnet, and their combination, and axial field distributions and temporal variations…

This engineering study describes a focused-ion-beam-assisted technique for fabricating reduced-size NdFeB nanomagnets and integrating them onto a thin-film bulk acoustic resonator (FBAR). After bonding the magnet, the FBAR showed a downshift in resonance frequency and a reduced quality factor. The magnetic behavior…

This cross-sectional web-based survey assessed parents' concerns about managing their children's diabetes and their attitudes toward a mobile-phone-integrated glucometer service that could transmit real-time glucose readings. Parents most commonly reported concerns about access to their child's health care provider,…

This cross-sectional survey assessed mobile phone ownership and use patterns among 309 medical science students in Yazd using a self-administered questionnaire. The abstract reports descriptive statistics on daily talking time, music listening, texting, and common locations of phone use. While the paper references…

This clinical report describes the use of radiofrequency (RF) technology in surgery of abdominal and thoracic parenchymatous organs in 17 patients. The authors report one complication (pleural effusion) and otherwise no additional organ complications in the abstract. They also describe a case of splenic preservation…

This critical review summarizes human research on static magnetic field (SMF) therapy delivered by permanent magnets attached to the skin and evaluates how well studies report SMF dosage and treatment parameters. Across 56 included studies, many did not report essential SMF characteristics (e.g., magnet dimensions,…