Ultra High Temperature, Miniature, SOI Sensors for Extreme Environments (2009)
Anthony D. Kurtz, Er A. Ned, Alan H. Epstein
The need for semiconductor pressure transducers that can operate at extremely high temperatures, in harsh environments that are corrosive, oxidizing, experiencing high vibration, is constantly on the...
DEMONSTRATION OF A MICROFABRICATED HIGH-SPEED TURBINE SUPPORTED ON GAS BEARINGS (2008)
Luc G. Fréchette, Stuart A. Jacobson, Kenneth S. Breuer, Fredric F. Ehrich, Reza Ghodssi, Ravi Khanna, ...
A single-crystal silicon air turbine supported on gas lubricated bearings has been operated in a controlled and sustained manner at rotational speeds greater then 1 million rpm and power levels...
Latest Ruggedized High Temperature Piezoresistive (2008)
D. Kurtz, Er A. Ned, Scott Goodman, Alan H. Epstein
In recent years, the need for semiconductor pressure transducers that can be used in applications that require operation in harsh environments that are corrosive, oxidizing, experiencing high...
Demonstration of a Microfabricated High-Speed Turbine Supported on Gas Bearings (2006)
Frechette, Luc G., Jacobson, Stuart A., Breuer, Kenneth S., Ehrich, Fredric F., Ghodssi, Reza, Khanna, Ravi, ...
A single-crystal silicon air turbine supported on gas lubricated bearings has been operated in a controlled and sustained manner at rotational speeds greater then I nullion rpm and power levels...
Aspirated High Pressure Compressor (2006)
Epstein, Alan H., Maclaurin, R. C., Kerrebrock, Jack L., Guenette, Gerald R., Merchant, Ali A., Neumayer, Fritz, ...
The design and test of a two-stage, vaneless, aspirated counter-rotating fan is presented in this paper. The fan nominal design objectives were a pressure ratio of 3:1 and adiabatic efficiency of...
Epstein, Alan H., Protz, Jonathan
A top-down analysis of the cost structure of a U.S. air war was performed with the aim of elucidating the importance of aircraft range to campaign cost. Historically, operations and support costs...
Current Problems in Turbomachinery Fluid Dynamics. (2002)
Greitzer,Edward M., McCune,James E., Epstein,Alan H., Tan,Choon S.
A multi-investigator effort on problems of current interest in turbomachinery fluid dynamics is being carried out in the Gas Turbine and Plasma Dynamics Laboratory of MIT. Within the overall program...
Current Problems in Turbomachinery Fluid Dynamics. (2002)
Greitzer,Edward M., McCune,James E., Epstein,Alan H., Tan,Choon S.
A multi-investigator program on problems of current interest in turbomachinery fluid dynamics is being conducted at the M.I.T. Gas Turbine & Plasma Dynamics Lab. Within the scope of this effort, four...
Current Problems in Turbomachinery Fluid Dynamics. (2002)
Greitzer,Edward M., McCune,James E., Epstein,Alan H., Tan,Choon S.
A multi-investigator program on problems of current interest in turbomachinery fluid dynamics is being conducted at the M.I.T. Gas Turbine and Plasma Dynamics Lab. Within the scope of this effort,...
Covert,Eugene E., Epstein,Alan H.
During the last reporting period most of the effort has been directed to assembling the dedicated computer facility, integrating its use with computational codes, and developing the first version of...
Covert,Eugene E., Epstein,Alan H.
Computational efforts have concentrated on the areas of minicomputer-array processor development and two-dimensional computer code algorithm development. The particular areas covered are: 1) a...
Current Problems in Turbomachinery Fluid Dynamics. (2002)
Greitzer,Edward M., McCune,James E., Epstein,Alan H., Tan,Choon S.
A multi-investigator effort on problems of current interest in turbomachinery fluid dynamics is being carried out in the Gas Turbine & Plasma Dynamics Lab. of MIT. Within the overall program, four...
Fluid Dynamics of High Performance Turbomachines. (2002)
Greitzer,Edward M., Epstein,Alan H., Giles,Michael B., McCunme,James E., Tan,Choon S.
This report describes work which is part of a study on high performance turbomachinery fluid dynamics. Within the general topic, four separate tasks studies include: 1) Loss mechanisms and loss...
Fluid Dynamics of High Performance Turbomachines. (2002)
Greitzer,Edward M., Epstein,Alan H., Giles,Michael B., Kerrebrock,Jack L., McCune,James E.
Major tasks include: 1) Loss mechanisms and loss migration in transonic compressors, including development of advanced instrumentation for measurements of wake radial transport and analysis of...
Compressor Stability and Control: Review and Practical Implications (2001)
Paduano, James D., Epstein, Alan H.
This paper discusses developments in axial compressor stability modeling over the last several years and related work in active control of rotating stall and surge. Several major themes have emerged...
Air Force Research in Aero Propulsion Technology. (1998)
Greitzer, Edward M., Epstein, Alan H., Tan, Choon S., Giles, Michael B., Martinez-Sanchez, Manuel
The work consisted of six separate projects: 1. Rotor Dynamic Instability due to Alford Forces; 2. Turbocharger Stall; 3. Three-Dimensional Flows in Turbomachines; 4. Computational Techniques for...
Fluid Dynamics of High Performance Turbomachines. (1998)
Greitzer, Edward M., Epstein, Alan H., Giles, Michael B., McCune, James E., Tan, Choon S.
Within the general topic, four separate tasks are specified. These are, in brief: I. Loss mechanisms and loss migration in transonic compressors, including development of advanced instrumentation for...
Unsteady Flow Phenomena in Turbomachines. (1998)
Greitzer, Edward M., Epstein, Alan H., Giles, Michael B., McCune, James E., Tan, Choon S.
This report describes work carried out at the Gas Turbine Laboratory at M.I.T. as part of our multi-investigator effort on basic unsteady flow phenomena. Within the overall project, four separate...
Active Stabilization of Aeromechanical Systems. (1998)
Epstein, Alan H., Greitzer, Edward M., Dugundji, John, Garnier, Vincent H., Gysling, Daniel L.
This report details the work on the active control of surge and stall in gas turbine engines. The use of small amplitude waves predicted by theory as stall precursors were tested with experimental...
This report documents the proceedings of a workshop on Intelligent Turbine Engines for Army Applications held at the Massachusetts Institute of Technology on March 21-22, 1994. The workshop brought...
Active Control of Aeroelasticity and Internal Flows in Turbomachinery (1998)
Epstein, Alan H., Paduano, James D., Greitzer, Edward M.
The research conducted was focused in two areas. The first is active control of rotating stall when inlet distortion is present. This research was carried out on the low speed 3-stage active control...
Fabrication and Characterization of a Micro Turbine/Bearing Rig (1998)
Lin, Chuang-Chia, Ghodssi, Reza, Ayon, Arturo A., Chen, Dye-Zone, Jacobson, Stuart, Breuer, Kenneth, ...
This paper reports on a process to build, package, and instrument a 5-level wafer-bonded micro-machined turbine/bearing rig. The process flow involves the use of 5 wafers, 16 masks, and 9 deep...
High Frequency Response Multilayer Heat Flux Gauge Configuration. (1998)
Epstein, Alan H., Norton, Robert J.
Double-sided, high-frequency response heat flux gauge for use on metal turbine blading consists of a metal film (1500A) resistance thermometer sputtered on both sides of a thin (25 um) polyimide...
Method for Calibrating a Heat Flux Gauge. (1998)
Epstein, Alan H., Guenette, Gerald R., Norton, Robert J.
Double-sided, high-frequency response heat flux gauge for use on metal turbine blading consists of a metal film (1500A) resistance thermometer sputtered on both sides of a thin (25 micro) polyimide...
Air Force Research in Aero Propulsion Technology (AFRAPT). (1997)
Greitzer, Edward M., Epstein, Alan H., Ingard, K. U., Tan, Choon S., Waitz, Ian A.
This report covers research performed under Grant AFOSR-91-0052. The work consisted of five separate projects: (1) Active Control of Jet Engine Surge; (2) Turbomachinery Vortical Flows in an Adverse...
Air Force Research in Aero Propulsion Technology (AFRAPT). (1996)
Epstein, Alan H., Greizer, Edward M., Tan, Choon S., Waitz, Ian A., Ingard, U.
This report covers research performed under Grant AFOSR-91-0052. The work consisted of four separate projects: (1) Reduction of Fan Noise Thorough Boundary Layer and Wake Suction; (2) Effect of...
Epstein, Alan H., Lebovics, Robert S., Goffman, Thomas, Teague, Diane, Fuetsch, Elizabeth S., Glatstein, Eli, ...
Background: The halogenated pyrimidines 5'-iododeoxyuridine (IdUrd) and 5'-bromodeoxyuridine (BrdUrd) are under active study as radiation sensitizers for a variety of malignancies. Head and neck...
Thesis (M.S.) - Florida Technological University, Orlando, 1972.