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Design and validation of a real-time cassava planter seed quality monitoring system based on optical fiber sensors and rotary encoders.
Front Plant Sci
December 2024
Agricultural Machinery Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong, China.
Targeting the issues of seed leakage and cutting segment adhesion due to poor seed feeding and cutting in real-time seed-cutting cassava planters, this study developed a seeding quality monitoring system. Based on the structure and working principle of the seed cutting and discharging device, the installation methods of the matrix fiber optic sensor and rotary encoder were determined. By combining the operational characteristics of the planter's ground wheel drive with seed cutting and seed dropping, a monitoring model correlating the sowing parameters with seed dropping time was established; a monitoring window was created by extracting and processing the rotary encoder pulse signal, and the number of seeds sown after each opposing cutter's operation was calculated based on the pulse width information within the monitoring window.
View Article and Find Full Text PDFDetermining Tyre Adhesion Characteristics Based on the Road Tests of Automobiles.
Sensors (Basel)
November 2024
Institute of Vehicles and Construction Machinery Engineering, Warsaw University of Technology, 84 Narbutta Str., 02-524 Warsaw, Poland.
The motion of automobiles significantly depends on the conditions of interaction between a tyre and a road surface. One of the most frequently used ways of presenting the conditions of cooperation between a tyre and a road surface is a characteristic showing a longitudinal adhesion coefficient as a function of a longitudinal slip of a tyre. One of the methods for determining tyre-to-road adhesion characteristics is to use a special trailer combined with a towing vehicle.
View Article and Find Full Text PDFThe role of exercise in promoting lymphangiogenesis and extracellular matrix synthesis in lymphedema-induced tissue injury.
Mol Biol Rep
December 2024
Humanitas College, Kyung Hee University, 1732 Deogyeongdae-Ro, Yongin, 17104, South Korea.
Background: Secondary lymphedema is a progressive condition caused by lipid- and protein-rich interstitial fluid accumulation resulting from compromised lymphatic function. It commonly occurs in cancer patients following surgical lymph node ablation and radiation treatment. This study aims to elucidate the effects of exercise on the myokine interleukin (IL)-6 and the molecular changes involved in lymphangiogenesis and extracellular matrix (ECM) synthesis using a lymphedema mouse model.
View Article and Find Full Text PDFPartial activation of SIK3 delays the onset of wakefulness and alleviates hypersomnia due to the lack of protein kinase A-phosphorylation site.
Sleep
December 2024
International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki, Japan.
Study Objectives: Sleep/wakefulness is regulated by intracellular signaling pathways composed of protein kinases such as salt-inducible kinase 3 (Sik3). Sik3-deficiency in neurons decreases NREM sleep time and electroencephalogram (EEG) delta power during NREM sleep, while Sik3Slp mice lacking a protein kinase A (PKA)-phosphorylation site, S551, show hypersomnia phenotype. In this study, we examined how a phosphomimetic mutation of the 221st threonine residue (T221E), which provides a partial (weak) constitutive activity of the kinase, affects sleep/wakefulness and circadian behavior.
View Article and Find Full Text PDFToward rapid silica analysis of CPDM samples: Deposition of recovered dust and analysis by FTIR.
J Occup Environ Hyg
December 2024
Department of Mining and Minerals Engineering, Virginia Polytechnic Institute & State University, Blacksburg, Virginia.
The ongoing resurgence of severe Coal Workers' Pneumoconiosis in the US has been linked to overexposure to respirable crystalline silica (RCS, which is predominantly present as quartz and regulated as such). Capabilities that enable more frequent RCS monitoring are highly sought. Recent developments include field-based quartz analysis of traditional filter samples-collected on polyvinyl chloride (PVC) filters-using portable Fourier Transform Infrared spectroscopy (FTIR).
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