Results 101 to 110 of about 993,247 (318)
RCS and stealth performance analyses of marine low-altitude helicopter
Hangkong gongcheng jinzhanThe study of radar target characteristics and stealth performance of low altitude helicopters at sea can provide a basis for path planning. a random rough sea surface model is established in this paper.
LIANG Chengliang +3 more
doaj +1 more source
End to End Satellite Servicing and Space Debris Management [PDF]
, 2019 There is growing demand for satellite swarms and constellations for global positioning, remote sensing and relay communication in higher LEO orbits. This will result in many obsolete, damaged and abandoned satellites that will remain on-orbit beyond 25 ...
Chandra, Aman +3 more
core +2 more sources
Archaeology in Oceania, EarlyView.ABSTRACT In this paper we report on faunal remains recovered from a legacy archaeological excavation undertaken in the rockshelter entrance of Waribruk (New Guinea II Cave), a GunaiKurnai site located on the west bank of the Snowy River, East Gippsland, southeastern Australia.
Matthew C. McDowell +7 more
wiley +1 more source
Pilots' use of a traffic alert and collision-avoidance system (TCAS 2) in simulated air carrier operations. Volume 2: Appendices [PDF]
, 1989 Pilots' use of and responses to a traffic alert and collision-avoidance system (TCAS 2) in simulated air carrier line operations are discribed in Volume 1.
Billings, Charles E. +5 more
core +1 more source
Genetic Diversity, Adaptation, Wild Introgression, and Coat Color Mutation of Golden Yak
Animal Research and One Health, EarlyView.Genetic diversity, adaptation, wild introgression, and coat color mutation of golden yak from two populations on the Qinghai‐Xizang Plateau. ABSTRACT The golden yak lives on the Qinghai‐Xizang Plateau with a golden coat and adapts to high altitudes and strong ultraviolet environment. The golden coat is a prominent phenotype in many domesticated species,
Huixuan Yan +15 more
wiley +1 more source
Improvements of the gravity field from satellite techniques as proposed to the European Space Agency [PDF]
, 1978 A summary of the European Earth Sciences Space Programme and the requirements for each gravity field mapping resulting from this programme are given. Three satellite experiments for gravity field improvement proposed to the European Space Agency in the ...
Reigber, C.
core +1 more source
Innovative observing strategy and orbit determination for Low Earth Orbit Space Debris
, 2011 We present the results of a large scale simulation, reproducing the behavior of a data center for the build-up and maintenance of a complete catalog of space debris in the upper part of the low Earth orbits region (LEO).
A. Milani +26 more
core +1 more source
Cutting Through the Green: A Case for Grassland Archaeology Using UAV Multispectral Data
Archaeological Prospection, EarlyView.ABSTRACT Advances in low‐altitude remote sensing are needed to improve the effectiveness of archaeological prospection in the Netherlands. The geomorphological situation and land use history make applying various remote sensing and geophysical technologies particularly challenging.
Roeland Emaus
wiley +1 more source
Magsat attitude dynamics and control: Some observations and explanations [PDF]
, 1980 Before its reentry 7 months after launch, Magsat transmitted an abundance of valuable data for mapping the Earth's magnetic field. As an added benefit, a wealth of attitude data for study by spacecraft dynamicists was also collected.
Stengle, T. H.
core +1 more source
Archaeological Prospection, EarlyView.ABSTRACT High‐resolution and accurate synoptic images of terrestrial topography, even in densely forested areas, have proven valuable for archaeology by enabling the identification and characterization of relief patterns associated with ancient human activities. This study presents a novel approach that integrates digital terrain models (DTMs) obtained
Jhon A. Zabaleta‐Santisteban +13 more
wiley +1 more source