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Reanalysis on Performance of Microwave Phase Detector for Multisignals.
Sensors (Basel)
December 2024
Aviation Engineering School, Air Force Engineering University, Xi'an 710038, China.
Microwave phase detectors (MPDs) are key components of instantaneous frequency measurement (IFM) receivers and phase interferometer direction finding (PIF-DF) receivers. In conventional analyses, there is seldom a major quantitative discussion of MPD characterization when multiple signals arrive at the same time, which is often the case in complex and noisy electromagnetic environments. We have reanalyzed the characteristics of MPDs with respect to filter effects acting on more than two RF signals and differential amplifiers, which are not considered in conventional analyses.
View Article and Find Full Text PDFDesign and Study of Pulsed Eddy Current Sensor for Detecting Surface Defects in Small-Diameter Bars.
Sensors (Basel)
December 2024
College of Automation & College of Artificial Intelligence, Nanjing University of Posts and Telecommunications, Nanjing 210023, China.
The design and study of pulsed eddy current sensors for detecting surface defects in small-diameter rods are highly significant. Accurate detection and identification of surface defects in small-diameter rods may be attained by the ongoing optimization of sensor design and enhancement of detection technologies. This article presents the construction of a non-coaxial differential eddy current sensor (Tx-Rx sensor) and examines the detection of surface defects in a small diameter bar.
View Article and Find Full Text PDFppb-Level SO Photoacoustic Sensor for SF Decomposition Analysis Utilizing a High-Power UV Laser with a Power Normalization Method.
Sensors (Basel)
December 2024
Hangzhou Institute of Technology, Xidian University, Hangzhou 311200, China.
A highly sensitive sulfur dioxide (SO) photoacoustic gas sensor was developed for the sulfur hexafluoride (SF) decomposition detection in electric power systems by using a novel 266 nm low-cost high-power solid-state pulse laser and a high -factor differential photoacoustic cell. The ultraviolet (UV) pulse laser is based on a passive -switching technology with a high output power of 28 mW. The photoacoustic signal was normalized to the laser power to solve the fluctuation of the photoacoustic signal due to the power instability of the UV laser.
View Article and Find Full Text PDFGenome-Wide Identification and Expression Analysis of the G-Protein Gene Family in Barley Under Abiotic Stresses.
Plants (Basel)
December 2024
Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China.
Heterotrimeric G-proteins are fundamental signal transducers highly conserved in plant species, which play crucial roles in regulating plant growth, development, and responses to abiotic stresses. Identification of G-protein members and their expression patterns in plants are essential for improving crop resilience against environmental stresses. Here, we identified eight heterotrimeric G-protein genes localized on four chromosomes within the barley genome by using comprehensive genome-wide analysis.
View Article and Find Full Text PDFMining of Candidate Genes and Developing Molecular Markers Associated with Pokkah Boeng Resistance in Sugarcane ( spp.).
Plants (Basel)
December 2024
State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning 530005, China.
Sugarcane Pokkah Boeng (PB), a fungal disease caused by spp., poses a significant threat to sugar industries globally. Breeding sugarcane varieties resistant to PB has become a priority, and the mining of PB resistance genes and the development of molecular markers provide a solid foundation for this purpose.
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