Results 101 to 110 of about 843,251 (286)
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
Effects of different hypoxia exposure on myeloid-derived suppressor cells in mice
For many people living at high altitudes for long or short periods of time, hypoxia is a challenge affecting many aspects of the body, including the immune system.
Qiying Xu +4 more
doaj +1 more source
Helmet assembly and latch means therefor Patent [PDF]
Transparent polycarbonate resin, shell helmet and latch design for high altitude and space ...
Jones, R. L.
core +1 more source
ABSTRACT The Carnac alignments in Morbihan (France) are among the most famous Neolithic sites of the world. Paradoxically, they have benefited little from a thorough renewal of archaeological data over the past century. There are many reasons for this, but it is mainly because the site has been regarded more as a monument to visit and protect than as ...
Guillaume Bruniaux +6 more
wiley +1 more source
ABSTRACT In Upper Mesopotamia, the transition from the Pre‐Pottery Neolithic A (PPNA) to Pre‐Pottery Neolithic B (PPNB) period, ca. 10 800–10 600 cal. BP, is marked by a series of changes in chipped stone industries, architectural forms, symbolic objects, regional distribution of settlements and long‐distance exchange networks among others.
Toshihiro Tada +7 more
wiley +1 more source
Objective This study aimed to investigate the prevalence of gallstone disease among health check-upers (employees) in the Qinghai-Tibet Plateau and clarify the independent effects of altitude, ethnicity, and their interaction on gallstone disease risk ...
Shenggui Qi +6 more
doaj +1 more source
Tailcone on orbiter altitude attainable at the maximum ALT interface airspeed [PDF]
A preflight analysis performed for verification of the ALT mated vehicle incidence angle which maximizes the post separation altitude attainment by the orbiter at the maximum approach and landing test (ALT) interface airspeed (300 KEAS) is discussed.
Glenn, G. M.
core +1 more source
ABSTRACT Rain‐induced erosion processes can severely damage Earthen archaeological sites. Huaca Chornancap (HCH; eighth–14th century ad) is a platform located in the Lambayeque region (Peru) exposed to seasonal rain due to El Niño Southern Oscillation (ENSO).
Luigi Magnini +5 more
wiley +1 more source
Application of trajectory optimization techniques to upper atmosphere sampling flights using the F4-C Phantom aircraft [PDF]
Altitude potential of an off-the-shelf F4-C aircraft is examined. It is shown that the standard F4-C has a maximum altitude capability in the region from 85000 to 95000 ft, depending on the minimum dynamic pressures deemed acceptable for adequate flight ...
Hague, D. S., Merz, A. W.
core +1 more source

