The VITAL (EnVIronmenTALly Friendly Aero Engines) project funded by the European Commission under its Framework 6 Programme aims to provide significant reductions in fuel burn, emissions and noise through the development of innovative design and manufacturing techniques. One way to reduce the amount of fuel burnt, and hence CO2 produced, is to reduce the weight of the engine. A significant prop...

M MDO OML A novel method has been developed for calculating q gradients of aerodynamic force and moment coefi% TSV cients for an aeroelastic aircraft model. This method t/c uses the Global Sensitivity Equations (GSE) to acX count for the aero-structural coupling, and a reduceda order modal analysis approach to condense the cou6 piing bandwidth between the aerodynamic and strucA rural models. Pa...

Abstract A coupled model of engine mainstream way with secondary air system was established based on the network method. The change rule performance, parameters and axial force simulated when aero-engine sunk in shaft failure. dynamic could be forecast accurately analysis transient algorithm, also calculated. So simulation data can provided for engineering design, it help designer improve desig...

Malignant melanoma, as the name implies, is a malignant tumor of melanocytes, found in the skin, eyes, meningeal lining and the mucosal epithelium of the aero-digestive and genitourinary tracts. Malignant melanoma is typically skin malignancy, which rarely presents at extracutaneous site. Here we present a rare case of primary retroperitoneal melanoma and review the findings in comparison with ...

Optical aberrations that are due to high-speed turbulence in the aero-optical regime are corrected with optical phase conjugation based on coherent population trapping in sodium vapor. Experimental measurements of an unheated, forced helium jet in air have demonstrated aberration correction by a factor of 7.8 at a forcing frequency of 18kHz with an optical power gain of 32.

A growing body of scientific evidence indicates that exercise has a positive impact on human health, including neurological health. Aerobic exercise, which is supposed to enhance cardiovascular functions and metabolism, also induces neurotrophic factors that affect hippocampal neurons, thereby improving spatial learning and memory. Alternatively, little is known about the effect of resistance e...

Studies have shown that significant vehicle mass and cost savings are possible with the use of ballutes for aero-capture. Through NASA’s In-Space Propulsion program, a preliminary examination of ballute sensitivity to geometry and Reynolds number was conducted, and a single-pass coupling between an aero code and a finite element solver was used to assess the static aeroelastic effects. There re...