Results 121 to 130 of about 44,579 (279)
Energy efficient engine sector combustor rig test program [PDF]
Under the NASA-sponsored Energy Efficient Engine program, Pratt & Whitney Aircraft has successfully completed a comprehensive combustor rig test using a 90-degree sector of an advanced two-stage combustor with a segmented liner.
Dubiel, D. J. +4 more
core +1 more source
Courtship display behavior influences tail myology in Centrocercus minimus (Gunnison sage‐grouse)
Journal of Anatomy, EarlyView.Courtship displays among birds are widespread, particularly those which incorporate raised tail feathers for extended periods of time. The Gunnison sage‐grouse (Centrocercus minimus) is such a species. When we compared the tail muscles of the sage‐grouse to birds which do not engage in erected tail fan postures, both morphology proportional mass ...
Alexander D. Clark +3 more
wiley +1 more source
The NOAA/NESS program for operational snowcover mapping: Preparing for the 1980's [PDF]
There are no author-identified significant results in this ...
Schneider, S. R.
core +1 more source
Journal of Anatomy, EarlyView.Simple rhamphotheca are externally homogeneous but internally are composed of several corneous layers with varying hardness. Areas under more mechanical stress such as the rostral portion and the tomia are significantly harder than other areas. Abstract Corneous sheaths on the jaws of beaked tetrapods, or rhamphothecae, are classified as simple or ...
Khanh H. T. To +2 more
wiley +1 more source
Strength of parrot flight feathers is a function of position on the wing [PDF]
D. Charles Deeming +3 more
openalex +1 more source
Journal of Anatomy, EarlyView.Juvenile scolopacid shorebirds possess well‐developed osteological correlates of tactile bill‐tip organs, indicating sensory systems for remote‐touch foraging are present from early life. Ontogenetic changes in bill‐tip morphology suggest ecological specialisation and interspecific variation develop later, after fledging in these highly precocial ...
Carla J. du Toit +2 more
wiley +1 more source
Arrow-wing supersonic cruise aircraft structural design concepts evaluation. Volume 4: Sections 15 through 21 [PDF]
The analyses performed to provide structural mass estimates for the arrow wing supersonic cruise aircraft are presented. To realize the full potential for structural mass reduction, a spectrum of approaches for the wing and fuselage primary structure ...
Davis, G. W., Sakata, I. F.
core +1 more source
It’s All About Me (Or Is It Us?): The Narrative Antecedents of the Locus of Celebrity
Journal of Management Studies, EarlyView.Abstract For two decades, research on individual and organizational celebrity has flourished. However, the literature remains limited in several ways. First, despite recent gains regarding the antecedents of celebrity, current theory does not fully explain why celebrity resides at a specific locus (i.e., at the individual‐ and/or organizational level).
Laura D’Oria +3 more
wiley +1 more source
A Cross‐Sectional Study on Parakeets Feeding and Housing Practices in Italy
Journal of Animal Physiology and Animal Nutrition, EarlyView.ABSTRACT Italy has one of the largest companion bird populations in Europe. This study aimed to investigate feeding and housing practices among Italian parakeet owners. An online questionnaire was distributed, yielding 433 voluntary responses. Participants were classified as hobbyists (HBY; ≤ 13 birds owned) or breeders (BRD; > 13 birds owned) to ...
Erdem Danyer +4 more
wiley +1 more source