Aeronautical engineering

It turns out that there is another branch of mathematics, closely related to tire calculus of variations, although historically the two fields grew up somewhat separately, known as optimal control theory (OCT). Although the boundary between these two fields is somewhat blurred, in practice one may view optimal control theory as the application of the calculus of variations to problems with differential equation constraints. OCT is used in chemical, electrical, and aeronautical engineering where the differential equation constraints may be chemical kinetic equations, electrical circuit equations, the Navier-Stokes equations for air flow, or Newton s equations. In our case, the differential equation constraint is the TDSE in the presence of the control, which is the electric field interacting with the dipole (pemianent or transition dipole moment) of the molecule [53, 54, 55 and 56]. From the point of view of control theory, this application presents many new features relative to conventional applications perhaps most interesting mathematically is the admission of a complex state variable and a complex control conceptually, the application of control teclmiques to steer the microscopic equations of motion is both a novel and potentially very important new direction. 

German aeronautical engineer Otto Lilicnthal invents his first glider. 

Russian-American aeronautical engineer Igor Sikorsky makes the first successful tethered helicopter flight. 

Benjamin Gal-Or, Department of Aeronautical Engineering, Technion-Israel Institute of Technology, Haifa, Israel also at Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania (295)... 

Fineman, S., Some Analytical Considerations of the Hybrid Rocket Combustion Problem, M. S. E. Thesis, Department of Aeronautical Engineering, Princeton University, Princeton,... 

Department of Astronomy, University of Tokyo Department of Astronomy, Keio University, Yokohama Department of Physics and Astronomy, Louisiana State University and Department of Aeronautical Engineering, Kyoto University... 

Additional data for a particular type of fuel injection might be discovered by means of comprehensive bibliographies available (15, 22, 35, 84)- Most current work is eventually noted in one or more of the following publications Aeronautical Engineering Review, Aircraft Engineering, Jet Propulsion, NACA Research Abstracts (unclassified and confidential), Title Announcement Bulletins of the Armed Services Technical Information Agency (unclassified and confidential), U. S. Government Research Reports. 

Ricci, R. R., Ignition Characteristics of Special Jet Engine Fuels, Aeronautical Engine... 

Fuel in Nene Turbojet Engine, Naval Air Material Center, Aeronaut Engine Lab., Philadelphia, Pa., NAM-PP503 (1954). 

DAER Dept of Aeronautical Engineering Research (Brit)... 

ACCCE Maryland (See also EA) AEL Aeronautical Engineering Laboratory... 

One major problem with structural materials is that they crack and weaken as they age. The human body has mechanisms for healing itself if the skin is cut or a bone is broken. However, inanimate materials have had no such mechanisms— until now. Scientists at the University of Illinois at Ur-bana-Champaign (UIUC) have invented a plastic that automatically heals microscopic cracks before they can develop into large cracks that would degrade the usefulness of the material. This accomplishment was achieved by an interdisciplinary team of scientists including aeronautical engineering professors Scott White and Philippe Geubelle, applied mechanics professor Nancy Sottos, and chemistry professor Jeffrey Moore. 

B. N, Raghunandan and H. S. Mukunda, Analysis of Bipropellant Droplet Combustion with Variable Thermodynamic and Transport Properties, Rept. No. AE CIndian Institute of Science, Bangalore (1974) C F30, 71 (1977). 

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