Experimental Measurements and Computer Simulation of Fission Product Gamma-Ray Spectra [PDF]
, 1997 Airborne gamma ray spectrometry using high volume scintillation detectors, optionally in conjunction with Ge detectors, has potential for making rapid environmental measurements in response to nuclear accidents. An experimental investigation and computer
Sanderson, D.C.W. +4 more
core +8 more sources
Emergent Spinning and Orbital Motion in Clustered Wind-Assisted Flyers. [PDF]
Adv Sci (Weinh)Inspired by natural snowflake geometries, paper‐cut flyers exhibit geometry‐defined spinning and orbital motions during cluster formation in a wind tunnel. Collective flights of multiple paperflakes reveal dynamic clustering, fragmentation, and continuously evolving spin behaviors.
Zhou B +7 more
europepmc +2 more sources
The influence of Unmanned Agricultural Aircraft System design on spray drift
Journal für Kulturpflanzen, 2020 Field experiments were conducted to determine the influence of the Unmanned Agricultural Aircraft Systems (UAAS) design on spray drift sediment during a common arable field application in consideration of the spray deposit distribution.
Andreas Herbst +5 more
doaj +1 more source
A Robust and High-Precision Three-Step Positioning Method for an Airborne SAR Platform
Remote Sensing, 2023 When airborne synthetic aperture radar (SAR) encounters long-time global navigation satellite system (GNSS) denial, the system cannot eliminate inertial navigation system (INS) accumulated drift.
Wenhao Tong +3 more
doaj +1 more source
Linking sea ice deformation to ice thickness redistribution using high-resolution satellite and airborne observations [PDF]
The Cryosphere, 2021 An unusual, large, latent-heat polynya opened and then closed by freezing and convergence north of Greenland's coast in late winter 2018. The closing presented a natural but well-constrained full-scale ice deformation experiment.
L. von Albedyll +4 more
doaj +1 more source
Research and Evaluation on Key Technological Indicators for Airborne and Shipborne Gravimetry [PDF]
Journal of Geodesy and Geoinformation Science, 2019 Gravimetry technical guides are the scientific basis for air-sea gravimetry. However, the existing technical guides in China are behind the application requirements.
Motao HUANG,Kailiang DENG,Taiqi WU,Xiuping LU,Guojun ZHAI,Yongzhong OUYANG,Xin CHEN,Min LIU
doaj +1 more source
Understanding Spray Attributes of Commercial UAAS as Impacted by Operational and Design Parameters
Drones, 2022 Unmanned aerial application systems (UAAS) have recently gained momentum for the application of crop protection (CP) products. Due to their high operational efficiency, mobility, and low cost, UAAS may be perceived as a more viable option for spray ...
Rajeev Sinha +5 more
doaj +1 more source
Agriculture, 2023 Pesticide spray drift has been a worldwide concern in terms of potential environmental pollution and ecosystem damage. This study defined the main drift reduction agent (DRA) characteristics that help to understand the drift formation process in ...
Tadas Jomantas +9 more
doaj +1 more source
Agriculture, 2019 Spray drift is one of the most important causes of pollution from plant protection products and it puts the health of the environment, animals, and humans at risk. There is; thus, an urgent need to develop measures for its reduction.
Georgios Bourodimos +4 more
doaj +1 more source
Comparison of Lyman-alpha and LI-COR infrared hygrometers for airborne measurement of turbulent fluctuations of water vapour [PDF]
Atmospheric Measurement Techniques, 2018 To investigate if the LI-COR humidity sensor can be used as a replacement of the Lyman-alpha sensor for airborne applications, the measurement data of the Lyman-alpha and several LI-COR sensors are analysed in direct intercomparison flights on ...
A. Lampert +10 more
doaj +1 more source