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Electrónica

Exposure assessment and cytogenetic biomonitoring study of workers occupationally exposed to extremely low‐frequency magnetic fields

Abstract Human cytogenetic biomonitoring (HCB) has long been used to evaluate the potential effects of work environments on the DNA integrity of workers. However, HCB studies on the genotoxic effects of occupational exposure to extremely low-frequency electromagnetic fields (ELF-MFs) were limited by the quality of the exposure assessment. More specifically, concerns were raised regarding the […]

Pulsed electromagnetic fields used in regenerative medicine: An in vitro study of the skin wound healing proliferative phase

Abstract Numerous studies have demonstrated the efficacy of extremely low frequency-pulsed electromagnetic fields (ELF-PEMF) in accelerating the wound healing process in vitro and in vivo. Our study focuses specifically on ELF-PEMF applied with the Magnomega® device and aims to assess their effect during the main stages of the proliferative phase of dermal wound closure, in […]

Monitoring plant growth by analyzing their morphology using microfocus X‐ray CT

Abstract The growth and development of embryophytes is deeply influenced by environmental stimuli, such as light, temperature, and soil nutrients. Understanding the mechanisms underlying the growth response of plants to environmental stimuli is crucial for agriculture. In this study, we examined the morphology of a flowering plant, Arabidopsis thaliana, using microfocus X-ray computed tomography (µCT), […]

Development of portable deterioration diagnosis device for oil filled transformers based on near‐infrared spectroscopic information

Abstract A transformer plays a key role in electric power distribution system; therefore, when the transformer fails, several electrical components may get affected. As a result, diagnosing the deterioration of transformers is important for the management of electric power distribution system. The furfural content in the insulating oil of a transformer is widely used as […]

Gas classification by an electronic‐nose prototype based on a single gas sensor with novel temperature modulation

Abstract An electronic nose prototype based on the novel temperature-modulation technique is developed, where the heater voltage changes its amplitude and frequency periodically. The system comprises a sensor analog front end and a digital processing part including a heater voltage generator and a sensor data transmitter, where the digital part was implemented by a field […]

Binary image embedding and restoration in speech signal

Abstract In this paper, we propose a method of embedding images into a speech signal. An image is embedded in the high frequency band above 16 kHz of the speech signal to be difficult to perceive for humans. In the proposed method, the image is embedded after being binarized by the error diffusion method. When the […]

Validation of mobile phone use recall in the multinational MOBI‐kids study

Abstract Potential differential and non-differential recall error in mobile phone use (MPU) in the multinational MOBI-Kids case–control study were evaluated. We compared self-reported MPU with network operator billing record data up to 3 months, 1 year, and 2 years before the interview date from 702 subjects aged between 10 and 24 years in eight countries. […]

Electromagnetic field exposure monitoring of commercial 28‐GHz band 5G base stations in Tokyo, Japan

Abstract Fifth generation (5G) wireless communication is being rolled out around the world. In this work, the latest radio frequency electromagnetic field (EMF) exposure measurement results on commercial 28-GHz band 5G base stations (BSs) deployed in the urban area of Tokyo, Japan, are presented. The measurements were conducted under realistic traffic conditions with a 5G […]

Fabricating process of thin‐strain sensor by utilizing wafer‐level‐packaging techniques

Abstract This research has developed a fabricating process of thin-strain sensor by utilizing wafer-level-packaging (WLP) techniques. The thickness of sensor makes thinner, its performance is able to highly increase. However, the thinner sensor was fragile, and so it was difficult to handle in post processes. Thus, a thin sensor with lid by utilizing WLP techniques, […]