نتایج جستجو برای: transition flight
تعداد نتایج: 306504 فیلتر نتایج به سال:
Accurate measurements of the composition and energy spectra of cosmic rays beyond the TeV energy region have been an experimental challenge for years. TRACER (“Transition Radiation Array for Cosmic Energetic Radiation”), is currently the largest cosmic-ray detector for direct measurements, and has been developed for long-duration balloon flights. The instrument is unconventional in that it uses...
Anion photoelectron spectra of Ga(2)N(-) were measured at photodetachment wavelengths of 416 nm(2.978 eV), 355 nm(3.493 eV), and 266 nm(4.661 eV). Both field-free time-of-flight and velocity-map imaging methods were used to collect the data. The field-free time-of-flight data provided better resolution of the features, while the velocity-map-imaging data provided more accurate anisotropy parame...
Blade flap and chord bending and torsion moments are investigated for six rotors operating at transition and high speed: H-34 in flight and wind tunnel, SA 330 (research Puma), SA 349/2, UH-60A full-scale, and BO 105 model (HART-I). The measured data from flight and wind tunnel tests are compared with calculations obtained using the comprehensive analysis CAMRAD II. The calculations were made ...
The photodissociation dynamics of CH2BrCl have been studied using resonance-enhanced multiphoton ionization with time-of-flight mass spectrometry. Polarization dependent time-of-flight profiles were collected for a range of wavelengths from 248 to 268 nm, corresponding to the red wing of the absorption spectrum. Forward convolution fits to the data have provided translational energy distributio...
An advanced guidance law is developed for reentry phase of a reentry vehicle. It can achieve small miss distance and desired impact attitude angle, simultanceously. To meet this requirment a guidance law based on the fuzzy logic approach is developed. It is partitioned into three stages. This guidance law does not require linearization of missile engagement model. Line-of-sight and flight path ...
An experimental investigation was conducted to study the effectiveness of Synthetic Vision Systems (SVS) flight displays as a means of eliminating Low Visibility Loss of Control (LVLOC) and Controlled Flight Into Terrain (CFIT) accidents by low time general aviation (GA) pilots. A series of basic maneuvers were performed by 18 subject pilots during transition from Visual Meteorological Conditio...
The objective of this research is to design and demonstrate an agent-based modeling and analysis tool for evaluating General Aviation (GA) pilot situation awareness under free flight air traffic management (ATM). A computational tool is developed to assess free flight’s potential effect on GA operators, by combining an agent-based representation of the overall pilot/vehicle/ATM system with quan...
the application of a flight simulator with six degree of freedom (6dof)) in design and analysis of rocket systems is essential. the calibration of a 6dof flight simulator is a challenging problem. this paper focuses on the calibration of a flight simulator and intends to answer the following questions: 1) does experimental design have significant impact on calibration quality? if so, which expe...
Today’s airspace environment is congested and complex. The enroute environment is a tangled web of victor airways and jet routes connecting the multitude of radio navigation aids sprinkled all over the world and especially the US. The terminal area environments are highly congested with air traffic and requires precise aircraft control by pilots and ground controllers. This situation is even mo...
introduction: this paper investigates the relationships between extraversion, neuroticism and psychoticism dimensions with brain / behavioral systems. methods: randomly selected 128 female university students in tehran completed gray-wilson personality questionnaire and eysenck personality questionnaire-reversion, using pearson correlation coefficiency and regression analysis, result: the resul...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید