منابع مشابه
Helicopter Journals
The impact factor mania, also called impactitis, continues to play an improper role in the choices made by most investigators as to which journals to submit their research articles in the biomedical fields, and still worse, in the decisions taken by governing bodies and research grant allocators, as highlighted in a recent mBio editorial (1). Other factors, however, are threatening the scientif...
متن کاملCcv. the Vitamin a Content of "light White" Casein by Manan Kumar Maitra and Thomas Moore
THE presence of vitamin A in specimens of casein not subjected to treatment for effecting its removal or destruction has been assumed from the early days of research on vitamins. "Light white" casein (sodium caseinate), a form of casein much used in nutritional experiments, was examined as a source of vitamin A for rats by Culhane [1933]. She found that its use as the protein constituent of a b...
متن کاملHelicopter Rotor Unsteady Aerodynamics
Unsteady helicopter rotor aerodynamics are complicated. This paper reviews some of the fundamentals and newer developments of unsteady helicopter aerodynamics. Rotor flow is beautiful and complex. Visualizing rotor flow allows for an appreciation of the following theories and solution attempts as well as nature’s complexities. The flow through a helicopter rotor with forward motion is shown in ...
متن کاملThe RMAX Helicopter UAV
.............................................................2 INTRODUCTION.....................................................2 BACKGROUND OF DEVELOPMENT OF INDUSTRIAL –USE-UNMANNED HELICOPTERS........................................................2 PROTOTYPE MODEL OF 'RCASS' COUNTERREVOLUTION DUAL-ROTOR HELICOPTER ....3 DEVELOPMENT OF FIRST MODEL 'R50' ..........3 ATTITUDE CONTROL DEVICE,' ...
متن کاملHelicopter combat survivability
Of all modern aircraft, helicopters are the least survivable due to their low altitude and relatively low speed flight profiles compared with jet aircraft, and their high acoustic and radar signatures. These are inherent limitations of rotary wing aircraft, which cannot be easily or affordably designed out. Formal survivability analysis is centred on two components: the first being susceptibili...
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ژورنال
عنوان ژورنال: Journal of the Japan Society for Aeronautical and Space Sciences
سال: 1987
ISSN: 0021-4663
DOI: 10.2322/jjsass1969.35.468