A new method for monitoring the health condition based on nondestructive signals of laser radiation absorption and scattering

Davydov, Roman; Mazing, M S; Yushkova, V. V.; Давыдов, В. В.; Glinushkin, A. P.; Stirmanov, A. V.; Rud, V. Yu.

doi:10.1088/1742-6596/1410/1/012067

Cited by 32 publications

(3 citation statements)

References 25 publications

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“…The improved living standards and the development of modern society have rendered monitoring of health conditions a primary concern [1][2][3][4]. In particular, the real-time health monitoring requirements of the elderly and newborn infants have increased [5,6].…”

Section: Introductionmentioning

confidence: 99%

Rapid Manufacturing Approach of an Ultrathin Moisture Sensor for Health Monitoring

Zhang

Takashi

et al. 2023

Sensors

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This study developed a rapid manufacturing approach for a moisture sensor based on contactless jet printing technology. A compact measurement system with ultrathin and flexure sensor electrodes was fabricated. The proposed sensor system focuses on continuous urine measurement, which can provide timely information on subjects to ensure efficient diagnosis and treatment. The obtained results verify that the proposed sensor system can exhibit a typical responsivity of up to −7.76 mV/RH% in the high-sensitivity range of 50–80 RH%. A preliminary field experiment was conducted on a hairless rat, and the effectiveness of the proposed ultrathin moisture sensor was verified. This ultrathin sensor electrode can be fabricated in the micrometer range, and its application does not affect the comfort of the user. The ultrathin electrode sensors can be printed directly on the diaper or undergarment of the user for in situ urine health monitoring, particularly of infants and the elderly.

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Section: Introductionmentioning

confidence: 99%

Rapid Manufacturing Approach of an Ultrathin Moisture Sensor for Health Monitoring

Zhang

Takashi

et al. 2023

Sensors

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“…The study of the ways and mechanisms of their distribution along with agricultural crops in new regions is of both theoretical and practical interest. This topic is especially relevant for predicting invasions, developing new methods of plant protection and ensuring food security of states [2].…”

Section: Introductionmentioning

confidence: 99%

The emergence and development of mycoses in short-day plants under conditions of long daylight hours

et al. 2020

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The relevance of the study of mycoses is increasing due to their widespread distribution. Field experiments were carried out on sites in the region with short daylight hours (Dagestan) and long daylight hours (Volgograd). Fungal diseases were investigated on crops with short daylight hours: cucumber, pepper, and cotton according to the methods generally accepted in phytopathology. The species composition of aboriginal and exotic infections was revealed. Each culture under conditions of long daylight hours is characterized by damage by 4-5 species of fungi. The manifestation of exotic infections is observed at the beginning of the growing season at the seedling stage. The role of the introduction of short-day plants to the northern regions in the spread of exotic species of pathogenic fungi is shown. The species composition of fungi on crops in the study areas was found to be identical. They belong to different biological groups, but saprotrophs, biotrophs and hemibiotrophs predominate. It was found that Fusarium lolii (Wm.G. Sm.) Sacc and Rhizoctonia solani Kuehn (on cotton) and Verticillium dahliae Kleb and Rhizoctonia solani J.G. moved to new areas together with seeds. Kuhn (on pepper). These species are capable of causing epiphytotics at the beginning of the growing season with a low natural infectious background. The accumulation of native species of infection in the lands adjacent to the fields during the cultivation period leads to the appearance of epiphytoties in the second half of the growing season. First of all, the assimilation apparatus, flowers, ovaries and fruits are affected.

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“…The state and fl ow rate q of such media must be controlled in the range of fl ow rate variation of more than two orders of magnitude [6][7][8]. In this case, the temperature T of the fl owing medium, for example, in power plants and cooling systems, can vary by more than 200°C.…”

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confidence: 99%

Design of a Flow-Through Refractometer for Monitoring the State of Transparent Media with a Cylindrical Insert in the Form of a Vertical Section of a Pipeline

2021

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The problems of monitoring the state of fl owing media with a simultaneous change in temperature and fl ow rate of the medium by more than two orders of magnitude are considered. A design of a fl ow-through refractometer is proposed for monitoring the state of transparent media in laminar and turbulent fl ow regimes, as well as at high fl ow rates and changes in the temperature of the medium by more than 200°C. The developed fl ow-through refractometer implements a method for measuring the refractive index, based on the principle of parallelism of two beams: the incident and transmitted through a pipeline with refraction at the boundaries of several media. The piping in the form of a cylindrical Plexiglas insert is part of the refractometer design. The design of the optical part of the refractometer with a vertical section of the pipeline eliminates the infl uence on the measurement of the refractive index of errors caused by multiple refl ections of laser radiation from optical elements, the formation of voids or vortex fl ows in the pipeline. For the proposed refractometer there are no restrictions on the value of the measured refractive index of the fl owing liquid, in contrast to the previously used industrial fl ow-through refractometers, the principle of operation of which is based on the phenomenon of total internal refl ection of laser radiation at the interface of two media. The results of experimental studies of various media with the proposed refractometer are presented.

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A new method for monitoring the health condition based on nondestructive signals of laser radiation absorption and scattering

Cited by 32 publications

References 25 publications

Rapid Manufacturing Approach of an Ultrathin Moisture Sensor for Health Monitoring

Rapid Manufacturing Approach of an Ultrathin Moisture Sensor for Health Monitoring

The emergence and development of mycoses in short-day plants under conditions of long daylight hours

Design of a Flow-Through Refractometer for Monitoring the State of Transparent Media with a Cylindrical Insert in the Form of a Vertical Section of a Pipeline

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