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Articles 91 - 120 of 529
Full-Text Articles in Aeronautical Vehicles
Pocketcubes/Cubesats On Antares, Robert J. Twiggs, Walter Holemans, Michael Bitzer
Pocketcubes/Cubesats On Antares, Robert J. Twiggs, Walter Holemans, Michael Bitzer
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs, Walter Holmans, and Michael Bitzer titled "PocketCubes/CubeSats on Antares" from September 6, 2016.
Citizensatellite: Low Cost Missions For The Unordinary Innovator, Robert J. Twiggs, Amin Djamshidpour, Ted Tagami, Tony So
Citizensatellite: Low Cost Missions For The Unordinary Innovator, Robert J. Twiggs, Amin Djamshidpour, Ted Tagami, Tony So
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Robert Twiggs, Amin Djamshidpour, Ted Tagami, and Tony Sotitled "CitizenSatellite: Low Cost Missions for the Unordinary Innovator" from August 19, 2016.
Secondary Launch Opportunities Orbital Atk, Robert J. Twiggs
Secondary Launch Opportunities Orbital Atk, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs titled "Secondary Launch Opportunities Orbital ATK" from August 17, 2016.
Citizen Satellite: A Way To Have Low Cost Space Missions For The Unordinary Innovator, Robert J. Twiggs, Amin Djamshidpour, Ted Tagami, Tony So
Citizen Satellite: A Way To Have Low Cost Space Missions For The Unordinary Innovator, Robert J. Twiggs, Amin Djamshidpour, Ted Tagami, Tony So
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Robert Twiggs, Amin Djamshidpour , Ted Tagami, and Tony So titled "Citizen Satellite: A Way to have Low Cost Space Missions for the Unordinary Innovator" from August 7, 2016.
Syllabus: Space Systems Engineering 122 (Satellites And Space Systems Ii), Robert J. Twiggs
Syllabus: Space Systems Engineering 122 (Satellites And Space Systems Ii), Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A syllabus created by Professor Bob Twiggs for Space Systems Engineering 122 (Satellites and Space Systems II) taught at Morehead State University in the Spring of 2016.
Lunar Icecube Space Mission, Robert J. Twiggs, Eric Jerde
Lunar Icecube Space Mission, Robert J. Twiggs, Eric Jerde
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professors Bob Twiggs and Eric Jerde titled "Lunar IceCube Space Mission" from March 1, 2016.
Overview Of Eps-1 For Spacecraft, Robert J. Twiggs
Overview Of Eps-1 For Spacecraft, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on an "Overview of EPS-1 for Spacecraft" from Febuary 15, 2016.
Overview Of Eps-2 For Spacecraft, Robert J. Twiggs
Overview Of Eps-2 For Spacecraft, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on an "Overview of EPS-2 for Spacecraft" from February 15, 2016.
Citizen Satellite: A Way To Have Low Cost Space Missions For The Unordinary Innovator, Robert J. Twiggs, Amin Djamshidpour, Ted Tagami, Tony So
Citizen Satellite: A Way To Have Low Cost Space Missions For The Unordinary Innovator, Robert J. Twiggs, Amin Djamshidpour, Ted Tagami, Tony So
Robert "Bob" Twiggs STEM Education Collection
A report written by Robert Twiggs, Amin Djamshidpour, Ted Tagami, and Tony So on February 9, 2016.
Tu-Pod: Deployment Mechanism & Antenna Mounting, Robert J. Twiggs
Tu-Pod: Deployment Mechanism & Antenna Mounting, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs titled "Tu-POD: Deployment Mechanism & Antenna Mounting" from February 8, 2016.
Tu-Pod: Safety Review, Robert J. Twiggs
Tu-Pod: Safety Review, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs titled "Tu-POD: Safety Review" from February of 2016.
Early Afternoon Concurrent Panel Sessions: Commercial Space Industry Snapshot: Presentation: Small Catapult-Assisted Horizontal-Launch Reusable Rbcc Ssto Spaceplane For Economical Short-Duration Leo Access, Nihad E. Daidzic,
Aviation / Aeronautics / Aerospace International Research Conference
This article discusses the conceptual design, flight trajectory calculations, and utilization of the possible future horizontally-launched reusable Single-Stage-to-Orbit (SSTO) spaceplane for small payload short-duration manned/unmanned access to Low-Earth-Orbit (LEO). The 10,000 lb spaceplane would use 5,000 ft catapult-assist horizontal-launch facility and conduct powered approach and landing on conventional horizontal paved runways following the gliding atmospheric re-entry. To increase the economy of operation, the launch facility located at high elevations (4,000+ ft) equatorial region is required, such as, the plateaus in Kenya and Tanzania in Africa and/or Ecuador in South America. A 500-lb payload, including pilot-commander, is envisioned. The propulsion cycle …
Comparisons Of Ablator Experimental Performance To Response Modeling And Effects Of Water Phase Transition In Porous Tps Materials, David L. Smith
Comparisons Of Ablator Experimental Performance To Response Modeling And Effects Of Water Phase Transition In Porous Tps Materials, David L. Smith
Theses and Dissertations--Mechanical and Aerospace Engineering
The Mars Science Laboratory Entry Descent and Landing Instrumentation (MEDLI) project performed extensive arc jet tests for development, qualification, and calibration of instrumented heat shield plugs. These plugs each contained several thermocouples for recording near-surface and in-depth temperature response of the Phenolic Impregnated Carbon Ablator (PICA) heat shield. The arc jet test results are entered into a comprehensive database so that broad trends across the test series can be compared. One method of analysis is to compare with ablator material response calculations and solve the in-depth heat conduction equations. Using the near-surface thermocouple measurements as a boundary condition in numerical …
Small Satellite Noncommutative Rotation Sequence Attitude Control Using Piezoelectric Actuators, Joshua L. Evans
Small Satellite Noncommutative Rotation Sequence Attitude Control Using Piezoelectric Actuators, Joshua L. Evans
Theses and Dissertations--Electrical and Computer Engineering
Attitude control remains one of the top engineering challenges faced by small satellite mission planning and design. Conventional methods for attitude control include propulsion, reaction wheels, magnetic torque coils, and passive stabilization mechanisms, such as permanent magnets that align with planetary magnetic fields. Drawbacks of these conventional attitude control methods for small satellites include size, power consumption, dependence on external magnetic fields, and lack of full control authority. This research investigates an alternative, novel approach to attitude-control method for small satellites, utilizing the noncommutative property of rigid body rotation sequences. Piezoelectric bimorph actuators are used to induce sinusoidal small-amplitude satellite …
Lunar Icecube: Nextstep Lunar Cubesat Mission And Instrument Concept, Robert J. Twiggs
Lunar Icecube: Nextstep Lunar Cubesat Mission And Instrument Concept, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs associates titled "Lunar IceCube: NEXTSTEP Lunar Cubesat Mission and Instrument Concept" from November 12, 2015.
Small Packages Can Get Big Results, Robert J. Twiggs
Small Packages Can Get Big Results, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "Small Packages can get Big Results" from October 16, 2015.
Brief Look At The Environment Of Space, Robert J. Twiggs
Brief Look At The Environment Of Space, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs titled "Brief Look at the Environment of Space" from September 10, 2015.
A Brief History Of Space - Sse 120 Session 1, Robert J. Twiggs
A Brief History Of Space - Sse 120 Session 1, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "A Brief History of Space - Session 01" from August 30, 2015.
A Brief History Of Space - Sse 120 Questions 01, Robert J. Twiggs
A Brief History Of Space - Sse 120 Questions 01, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "A Brief History of Space - Questions 01" from August 26, 2015.
A Brief History Of Space - Sse 120 Questions 02, Robert J. Twiggs
A Brief History Of Space - Sse 120 Questions 02, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "A Brief History of Space - Questions 02" from August 25, 2015.
A Brief History Of Space - Sse 120 Questions 04, Robert J. Twiggs
A Brief History Of Space - Sse 120 Questions 04, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "A Brief History of Space - Questions 04" from August 25, 2015.
A Brief History Of Space - Sse 120 Questions 03, Robert J. Twiggs
A Brief History Of Space - Sse 120 Questions 03, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "A Brief History of Space - Questions 03" from August 25, 2015.
What Is Orbital Debris?, Robert J. Twiggs
What Is Orbital Debris?, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "What is Orbital Debris?" from August 24, 2015.
Brief Look At The Environment Of Space, Robert J. Twiggs
Brief Look At The Environment Of Space, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs titled "Brief Look at the Environment of Space" from August 24, 2015.
Orbital Debris Mitigation Policy And Unique Challenges For Small Satellites, J. C. Liou, David Jarkey
Orbital Debris Mitigation Policy And Unique Challenges For Small Satellites, J. C. Liou, David Jarkey
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by J. C. Liou and David Jarkey titled "Orbital Debris Mitigation Policy and Unique Challenges for Small Satellites" at the Small Satellite Conference on August 10, 2015.
Overview Of The Orbital Debris Problem, J. C. Liou
Overview Of The Orbital Debris Problem, J. C. Liou
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by J. C. Liou titled "Overview of the Orbital Debris Problem" at the Small Satellite Conference on August 10, 2015.
A Brief History Of Space - Sse 120, Robert J. Twiggs
A Brief History Of Space - Sse 120, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs on "A Brief History of Space" from August 5, 2015.
The “Stratospheric Cricket Keeper” – Developing A Simple“Life-Support” Payload For High-Altitude Balloon Missions, Lucas Kramer, Chad Serba, James Flaten
The “Stratospheric Cricket Keeper” – Developing A Simple“Life-Support” Payload For High-Altitude Balloon Missions, Lucas Kramer, Chad Serba, James Flaten
2017 Academic High Altitude Conference
Exposure to the environmental conditions of “near-space” (AKA the stratosphere) is quickly fatal to nearly all forms of animal life. It is even challenging to build a sealable enclosure that can keep insects (crickets) alive through the dramatic and simultaneous pressure and temperature drops experienced during a high-altitude balloon mission. This poster describes the development of a rugged “cricket keeper” in which we were able to fly crickets to the stratosphere and, quoting the words of JFK, “return (them) safely to the earth!” This “life-support” payload had large windows (for the view!) and included Arduino-logged temperature and pressure sensors, an …
Brief Look At The Environment Of Space, Robert J. Twiggs
Brief Look At The Environment Of Space, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint Presentation created by Professor Bob Twiggs titled "Brief Look at the Environment of Space" from June 17, 2015.
Unstandard Cubesat/Pocketqube/Tubesat Deployers, Robert J. Twiggs
Unstandard Cubesat/Pocketqube/Tubesat Deployers, Robert J. Twiggs
Robert "Bob" Twiggs STEM Education Collection
A PowerPoint presentation created by Professor Bob Twiggs titled "Unstandard CubeSat/PocketQube/TubeSat Deployers" from April 23, 2015.