Results 11 to 20 of about 1,122,392 (204)

Vibration Error Analysis and Motion Compensation of Video Synthetic Aperture Radar

open access: yesLeida xuebao, 2015
Video Synthetic Aperture Radar (ViSAR) system offers high imaging frame rate, and high resolution, and it is consequently used to investigate and locate near-moving targets. Compared with microwave SAR, the practical application of ViSAR is restricted by
Zhao Yu-lu   +4 more
doaj   +1 more source

Comparing Soil Erosion Rates on Terraced and Sloping Cultivated Land in Palestine Using FRN 137Cs Trace

open access: yesInternational Journal of Analytical Chemistry, 2022
Soil erosion is a serious problem in Palestine. It is enhanced mainly by poor farming practices used in upland agricultural areas occupying the Central Highland of Palestine.
Orwa Houshia   +6 more
doaj   +1 more source

Enhanced thermal insulation and mechanical properties of Y-α-SiAlON porous ceramics with Sr doping

open access: yesJournal of Materials Research and Technology, 2023
α-SiAlON is a potential wave-transmittance material for radome materials, yet the comprehensive properties need to be improved. In this study, a series of SrxY0.5-xSi12-(m + n) Alm +nOnN16-n (x = 0.02, 0.04, 0.06, and 0.08) porous ceramics with ...
Fengying Fan   +7 more
doaj   +1 more source

Method and Implementation of High-speed Digital Sampling Technology Based on Impulse Radar Signal

open access: yesLeida xuebao, 2012
A High-speed digital sampling technology suitable for periodical impulse radar signal is proposed in this paper. One bit high-speed quantize is constructed by differential comparator in FPGA. Time-interleaved digital sampling and buffer encoding are used
Shen Shao-xiang   +2 more
doaj   +1 more source

A Novel Lithium Foil Cosmic-Ray Neutron Detector for Measuring Field-Scale Soil Moisture

open access: yesFrontiers in Water, 2021
During the past decade, cosmic-ray neutron sensing technology has enabled researchers to reveal soil moisture spatial patterns and to estimate landscape-average soil moisture for hydrological and agricultural applications.
Andres Patrignani   +4 more
doaj   +1 more source

Improvement to the Carrier Transport Properties of CdZnTe Detector Using Sub-Band-Gap Light Radiation

open access: yesSensors, 2019
The effects of sub-band-gap light radiation on the performance of CdZnTe photon-counting X-ray detectors were studied using infrared light with different wavelengths in the region of 980⁻1550 nm. The performance of the detectors for X-ray detection
Xiangxiang Luo   +3 more
doaj   +1 more source

MAPbBr3−xIx Crystals Improved by Accurate Solution-Grown Procedure for Alpha Particle Detection

open access: yesFrontiers in Physics, 2020
High-quality organic–inorganic halide perovskite brings an opportunity for ideal nuclear radiation detection due to its large carrier mobility, lifetime, and heavy atoms.
Xin Liu   +20 more
doaj   +1 more source

A High-Performance Gamma Spectrometer for Unmanned Systems Based on Off-the-Shelf Components

open access: yesSensors, 2022
Since the Fukushima Daiichi Nuclear Power Plant accident in March 2011, the technology available for unmanned aerial vehicles (UAVs) for radiation monitoring has improved greatly.
Andrea Chierici   +4 more
doaj   +1 more source

A Novel, Rapid Response Renewable Biopolymer Neutron and Gamma Radiation Solid-State Detector for Dosimetry and Nuclear Reactor Flux-Power Mapping

open access: yesInstruments, 2023
A novel solid-state neutron and gamma radiation monitor-dosimeter based on biopolymer polylactic acid (PLA) is presented. The resulting detector (PLAD) technology takes advantage of property changes of the renewable PLA resin when subject to ionizing ...
Wen Jiang   +4 more
doaj   +1 more source

Growth and Scintillation Properties of Na+-Doped CsCu2I3 Single Crystals

open access: yesCrystals, 2023
CsCu2I3 crystal is a promising Cu-based halide material for scintillation detection. In this paper, Na+ ion-doped CsCu2I3 crystals with a size of ϕ12 mm × 50 mm were grown successfully using the vertical Bridgman method, and the properties were ...
Chang Shu   +7 more
doaj   +1 more source

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