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President's Commission on Moon, Mars and Beyond
The mission of the Commission shall be to provide recommendations to the President on implementation of the vision outlined in the President's policy statement entitled "A Renewed Spirit of Discovery" and the President's Budget Submission for Fiscal Year 2005 (collectively, "Policy"). The Commission shall examine and make recommendations to the President regarding: a) science research agenda to be conducted on the Moon and other destinations as well as human and robotic science activities that advance our capacity to achieve the Policy; b) The exploration of technologies, demonstrations, and strategies, including the use of lunar and other in situ natural resources, that could be used for sustainable human and robotic exploration; c) Criteria that could be used to select future destinations for human exploration; d) Long-term organization options for managing implementation of space exploration activities; e) The most appropriate and effective roles for potential private sector and international participants in implementing the Policy; and f) Methods for optimizing space exploration activities to encourage the interests of America's youth in studying and pursuing careers in mathematics, science, and engineering; and g) Management of the implementation of the Policy within available resources.
Date:
June 16, 2004
Creator:
President's Commission on Moon, Mars and Beyond
Object Type:
Website
System:
The UNT Digital Library
Space Exploration: Issues Concerning the "Vision for Space Exploration"
Report detailing the vision for space exploration, including budget changes for NASA, public reaction, issues, and more.
Date:
June 9, 2005
Creator:
Smith, Marcia S.
Object Type:
Report
System:
The UNT Digital Library
Technology transfer from the space exploration initiative
Space exploration has demonstrated that it stimulates the national economy by creating new and improved products, increased employment, and provides a stimulus to education. The exploration of the Moon and Mars under the Space Exploration Initiative has the potential of accelerating this stimulates to the economy. It is difficult to identify all of the concrete ways this will be accomplished. However, many areas can be identified. The space exploration building blocks of power, propulsion, spacecraft, robotics, rovers, mining and manufacturing, communications, navigation, habitats, life support and infrastructures are reviewed to identify possible technology areas. For example, better means for working in hazardous areas and handling hazardous waste are potential outcomes of this initiative. Methods to produce higher quality goods and improve America`s competitiveness in manufacturing will undoubtedly evolve from the need to produce products that must last many years in the harsh environments of space and planetary surfaces. Some ideas for technology transfer are covered in this paper.
Date:
June 14, 1991
Creator:
Buden, D.
Object Type:
Article
System:
The UNT Digital Library
Numerical Analysis of Cambered Plate Configurations under Low Reynolds Numbers and at a Low-Density Condition
Article discusses how, after one year of operation, the Ingenuity rotorcraft and the Perseverance rover continue their exploration missions on Mars. Succeeding the technology demonstration phase, by proving its flight capabilities, Ingenuity transitioned to a new mission stage to explore modes of flight exploration for future scouting missions. The author's research intends to analyze, using numerical simulations, the aerodynamic conditions such as those experienced by Ingenuity during its flight missions.
Date:
June 27, 2023
Creator:
Saez, Aleandro; Manzo, Maurizio & Ciarcià, Marco
Object Type:
Article
System:
The UNT Digital Library
Technology transfer from the space exploration initiative
Space exploration has demonstrated that it stimulates the national economy by creating new and improved products, increased employment, and provides a stimulus to education. The exploration of the Moon and Mars under the Space Exploration Initiative has the potential of accelerating this stimulates to the economy. It is difficult to identify all of the concrete ways this will be accomplished. However, many areas can be identified. The space exploration building blocks of power, propulsion, spacecraft, robotics, rovers, mining and manufacturing, communications, navigation, habitats, life support and infrastructures are reviewed to identify possible technology areas. For example, better means for working in hazardous areas and handling hazardous waste are potential outcomes of this initiative. Methods to produce higher quality goods and improve America's competitiveness in manufacturing will undoubtedly evolve from the need to produce products that must last many years in the harsh environments of space and planetary surfaces. Some ideas for technology transfer are covered in this paper.
Date:
June 14, 1991
Creator:
Buden, D.
Object Type:
Article
System:
The UNT Digital Library
Space Exploration: Report of the Aldridge Commission on Implementation of President Bush’s Exploration Initiative
This report discusses the commission created to assist the National Aeronautics and Space Administration as it focuses on new exploration goals. Updated June 22, 2004.
Date:
June 22, 2004
Creator:
Smith, Marcia S.
Object Type:
Report
System:
The UNT Digital Library
Design of Small Impact-Resistant RTGs for Global Network of Unmanned Mars Landers
Ongoing studies by the National Aeronautics and Space Administration (NASA) for the robotic exploration of Mars contemplate a network of at least twenty small and relatively inexpensive landers distributed over both low and high latitudes of the Martian globe. They are intended to explore the structural, mineralogical, and chemical characteristics of the Martian soil, search for possible subsurface trapped ice, and collect long-term seismological and meteorological data over a period of ten years. They can also serve as precursors for later unmanned and manned Mars missions.; The collected data will be transmitted periodically, either directly to Earth or indirectly via an orbiting relay. The choice of transmission will determine the required power, which is currently expected to be between 2 and 12 watts(e) per lander. This could be supplied either by solar arrays or by Radioisotope Thermoelectric Generators (RTGs). Solar-powered landers could only be used for low Martian latitudes, but RTG-powered landers can be used for both low and high latitudes. Moreover, RTGs are less affected by Martian sandstorms and can be modified to resist high-G-load impacts. High impact resistance is a critical goal. It is desired by the mission designers, to minimize the mass and complexity of the system …
Date:
June 26, 1991
Creator:
Schock, Alfred
Object Type:
Report
System:
The UNT Digital Library
Benchmarking Heavy Ion Transport Codes FLUKA, HETC-HEDS MARS15, MCNPX, and PHITS
Powerful accelerators such as spallation neutron sources, muon-collider/neutrino facilities, and rare isotope beam facilities must be designed with the consideration that they handle the beam power reliably and safely, and they must be optimized to yield maximum performance relative to their design requirements. The simulation codes used for design purposes must produce reliable results. If not, component and facility designs can become costly, have limited lifetime and usefulness, and could even be unsafe. The objective of this proposal is to assess the performance of the currently available codes â PHITS, FLUKA, MARS15, MCNPX, and HETC-HEDS â that could be used for design simulations involving heavy ion transport. We plan to access their performance by performing simulations and comparing results against experimental data of benchmark quality. Quantitative knowledge of the biases and the uncertainties of the simulations is essential as this potentially impacts the safe, reliable and cost effective design of any future radioactive ion beam facility. Further benchmarking of heavy-ion transport codes was one of the actions recommended in the âÂÂReport of the 2003 RIA R&D Workshop".
Date:
June 7, 2013
Creator:
Ronningen, Reginald Martin; Remec, Igor & Heilbronn, Lawrence H.
Object Type:
Report
System:
The UNT Digital Library
A Journey to Inspire, Innovate, and Discover
On January 14, 2004, President George W. Bush announced a new vision for America’s civil space program that calls for human and robotic missions to the Moon, Mars, and beyond. This vision set forth goals of: returning the Space Shuttle safely to flight; completing the International Space Station (ISS); phasing out the Space Shuttle when the ISS is complete (about 2010); sending a robotic orbiter and lander to the Moon; sending a human expedition to the Moon as early as 2015, but no later than 2020; conducting robotic missions to Mars in preparation for a future human expedition; and conducting robotic exploration across the solar system. Such a focus for the American space program has not existed since the Apollo era and establishes a much-needed direction and purpose for our national space efforts. The Commission sought extensive input for their deliberations, from within the U.S. government and directly from the public in the United States and abroad. The Commission held five televised public hearings, meeting in: Washington, D.C.; Dayton, Ohio; Atlanta, Georgia; San Francisco, California; and New York City. The Commission heard public testimony from 96 individuals representing academia, industry, media, teachers, students, entrepreneurs, astronauts, labor unions, state governments, federal …
Date:
June 2014
Creator:
United States. President's Commission on Implementation of United States Space Exploration Policy.
Object Type:
Report
System:
The UNT Digital Library
Cooperative Robot Teams Applied to the Site Preparation Task
Prior to human missions to Mars, infrastructures on Mars that support human survival must be prepared. robotic teams can assist in these advance preparations in a number of ways. This paper addresses one of these advance robotic team tasks--the site preparation task--by proposing a control structure that allows robot teams to cooperatively solve this aspect of infrastructure preparation. A key question in this context is determining how robots should make decisions on which aspect of the site preparation t6ask to address throughout the mission, especially while operating in rough terrains. This paper describes a control approach to solving this problem that is based upon the ALLIANCE architecture, combined with performance-based rough terrain navigation that addresses path planning and control of mobile robots in rough terrain environments. They present the site preparation task and the proposed cooperative control approach, followed by some of the results of the initial testing of various aspects of the system.
Date:
June 15, 2001
Creator:
Parker, LE
Object Type:
Article
System:
The UNT Digital Library
U.S. Civilian Space Policy Priorities: Reflections 50 Years After Sputnik
This report describes Sputnik and its influence on today's U.S. civilian space policy, the actions other nations and commercial organizations are taking in space exploration, and why the nation invests in space exploration and the public's attitude toward it. The report concludes with a discussion of possible options for future U.S. civilian space policy priorities and the implication of those priorities.
Date:
June 20, 2008
Creator:
Stine, Deborah D.
Object Type:
Report
System:
The UNT Digital Library
The National Aeronautics and Space Administration’s FY2001 Budget Request: Description and Analysis
This report analyzes the proposed budget of the fiscal year of 2001 and the requests of the National Aeronautics and Space Administration. Updated June 9, 2000.
Date:
June 9, 2000
Creator:
Rowberg, Richard E. & Hatch, Erin
Object Type:
Report
System:
The UNT Digital Library
Modeling human risk: Cell & molecular biology in context
It is anticipated that early in the next century manned missions into outer space will occur, with a mission to Mars scheduled between 2015 and 2020. However, before such missions can be undertaken, a realistic estimation of the potential risks to the flight crews is required. One of the uncertainties remaining in this risk estimation is that posed by the effects of exposure to the radiation environment of outer space. Although the composition of this environment is fairly well understood, the biological effects arising from exposure to it are not. The reasons for this are three-fold: (1) A small but highly significant component of the radiation spectrum in outer space consists of highly charged, high energy (HZE) particles which are not routinely experienced on earth, and for which there are insufficient data on biological effects; (2) Most studies on the biological effects of radiation to date have been high-dose, high dose-rate, whereas in space, with the exception of solar particle events, radiation exposures will be low-dose, low dose-rate; (3) Although it has been established that the virtual absence of gravity in space has a profound effect on human physiology, it is not clear whether these effects will act synergistically with …
Date:
June 1, 1997
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
[National Aeronautics and Space Administration: Overview, FY2007 Budget in Brief, and Key Issues for Congress, June 23, 2006]
This report discusses the budget of the fiscal year of 2007 and the requests of the National Aeronautics and Space Administration. Updated June 23, 2006.
Date:
June 23, 2006
Creator:
Morgan, Daniel & Behrens, Carl E.
Object Type:
Report
System:
The UNT Digital Library
OCS National Compendium
The Minerals Management Service's (MMS) Outer Continental Shelf Information Program (OCSIP) is responsible for making available to affected coastal States, local governments, and other interested parties data and information related to the Outer Continental Shelf (OCS) Oil and Gas Program. Since its establishment through Section 26 of the OCS Lands Act (OCSLA) Amendments of 1978, OCSIP has prepared regional summary reports, updates, and indexes on leasing, exploration, development, and production activities to fulfill the mandates of the OCSLA Amendments. The OCSIP receives many requests for out-of-print summary reports, updates, and indexes. The purpose of the OCS National Compendium is to consolidate these historical data and to present the data on an OCS-wide and regional scale. The single-volume approach allows the reader access to historical information and facilitates regional comparisons. The fold-out chart in the front of this publication provides the reader with a timeline (January 1988--November 1990) of events since publication of the last Compendium. Some of the events are directly related to the 5-year Oil and Gas Program, whereas others may or may not have an effect on the program. A predominantly graphic format is used in the report so that the large accumulation of data can be more …
Date:
June 1, 1991
Creator:
Gould, G.J.; Karpas, R.M. & Slitor, D.L.
Object Type:
Report
System:
The UNT Digital Library
The Europa Ocean Discovery mission
Since it was first proposed that tidal heating of Europa by Jupiter might lead to liquid water oceans below Europa`s ice cover, there has been speculation over the possible exobiological implications of such an ocean. Liquid water is the essential ingredient for life as it is known, and the existence of a second water ocean in the Solar System would be of paramount importance for seeking the origin and existence of life beyond Earth. The authors present here a Discovery-class mission concept (Europa Ocean Discovery) to determine the existence of a liquid water ocean on Europa and to characterize Europa`s surface structure. The technical goal of the Europa Ocean Discovery mission is to study Europa with an orbiting spacecraft. This goal is challenging but entirely feasible within the Discovery envelope. There are four key challenges: entering Europan orbit, generating power, surviving long enough in the radiation environment to return valuable science, and complete the mission within the Discovery program`s launch vehicle and budget constraints. The authors will present here a viable mission that meets these challenges.
Date:
June 1, 1997
Creator:
Edwards, B.C.; Chyba, C.F. & Abshire, J.B.
Object Type:
Article
System:
The UNT Digital Library
NTR-Enhanced Lunar-Base Supply using Existing Launch Fleet Capabilities
During the summer of 2006, students at the Center for Space Nuclear Research sought to augment the current NASA lunar exploration architecture with a nuclear thermal rocket (NTR). An additional study investigated the possible use of an NTR with existing launch vehicles to provide 21 metric tons of supplies to the lunar surface in support of a lunar outpost. Current cost estimates show that the complete mission cost for an NTR-enhanced assembly of Delta-IV and Atlas V vehicles may cost 47-86% more than the estimated Ares V launch cost of $1.5B; however, development costs for the current NASA architecture have not been assessed. The additional cost of coordinating the rendezvous of four to six launch vehicles with an in-orbit assembly facility also needs more thorough analysis and review. Future trends in launch vehicle use will also significantly impact the results from this comparison. The utility of multiple launch vehicles allows for the development of a more robust and lower risk exploration architecture.
Date:
June 1, 2009
Creator:
Bess, John D.; Colvin, Emily & Cummings, Paul G.
Object Type:
Article
System:
The UNT Digital Library
Geological and geochemical aspects of uranium deposits: a selected, annotated bibliography
A compilation of 490 references is presented which is the second in a series compiled from the National Uranium Resource Evaluation (NURE) Bibliographic Data Base. This data base is one of six created by the Ecological Sciences Information Center, Oak Ridge National Laboratory, for the Grand Junction Office of the Department of Energy. Major emphasis for this volume has been placed on uranium geology, encompassing deposition, genesis of ore deposits, and ore controls; and prospecting techniques, including geochemistry and aerial reconnaissance. The following indexes are provided to aid the user in locating references of interest: author, geographic location, quadrangel name, geoformational feature, taxonomic name, and keyword.
Date:
June 1, 1978
Creator:
Thomas, J. M.; Brock, M. L.; Garland, P. A.; White, M. B. & Daniel, E. W. (comps.)
Object Type:
Report
System:
The UNT Digital Library
National Aeronautics and Space Administration: Overview, FY2009 Budget, and Issues for Congress
This report discusses budget issues for the National Aeronautics and Space Administration (NASA), which conducts U.S. civilian space and aeronautics activities. The President's 2004 Moon/Mars Vision for Space Exploration is the major focus of NASA's activities.
Date:
June 19, 2008
Creator:
Morgan, Daniel & Behrens, Carl E.
Object Type:
Report
System:
The UNT Digital Library
Selenide Isotope Generator for the Galileo Mission. Program Final Report
This final report for the Selenide Isotope Generator for the Galileo Mission (SIG/GM) documents the work performed by Teledyne Energy Systems (TES) under US Department of Energy (DOE) Contract No. DE-AC01-78ET33009 (formerly ET-78-C-01-2865) during the period April 10, 1978 to June 30, 1979. Because of technical difficulties with the thermoelectric converter being developed by the 3M Company under separate DOE contract, a Stop Work Order, dated January 29, 1979, was issued by DOE. The TES effort up to the receipt of the Stop Work Order as well as limited technical activities up to the contract conclusion on June 30, 1979 are reported.
Date:
June 1, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
U.S. Space Programs: Civilian, Military, and Commercial
The future of the U.S. human space flight program is dominating debate about NASA. Pursuant to the "Vision for Space Exploration" announced by President Bush in January 2004, the shuttle program is to be terminated in 2010. The Vision directs NASA to focus its activities on returning humans to the Moon by 2020 and eventually sending them to Mars. How to manage Department of Defense (DOD) space programs to avoid the cost growth and schedule delays that have characterized several recent projects is a key issue facing DOD. The appropriate role of the government in facilitating commercial space businesses is an ongoing debate.
Date:
June 13, 2006
Creator:
Figliola, Patricia Moloney; Behrens, Carl E. & Morgan, Daniel
Object Type:
Report
System:
The UNT Digital Library
U.S. Department of Energy Space and Defense Power Systems Program Ten-Year Strategic Plan, Volume 1 and Volume 2
The Department of Energy's Space and Defense Power Systems program provides a unique capability for supplying power systems that function in remote or hostile environments. This capability has been functioning since the early 1960s and counts the National Aeronautics and Space Administration as one of its most prominent customers. This enabling technology has assisted the exploration of our solar system including the planets Jupiter, Saturn, Mars, Neptune, and soon Pluto. This capability is one-of-kind in the world in terms of its experience (over five decades), breadth of power systems flown (over two dozen to date) and range of power levels (watts to hundreds of watts). This document describes the various components of that infrastructure, work scope, funding needs, and its strategic plans going forward.
Date:
June 2013
Creator:
Dwight, Carla
Object Type:
Report
System:
The UNT Digital Library
Chronicles of Oklahoma, Volume 6, Number 2, June 1928
Quarterly publication containing articles, book reviews, photographs, illustrations, and other works documenting Oklahoma history and preservation.
Date:
June 1928
Creator:
Oklahoma Historical Society
Object Type:
Journal/Magazine/Newsletter
System:
The Gateway to Oklahoma History
Reinforcement function design and bias for efficient learning in mobile robots
The main paradigm in sub-symbolic learning robot domain is the reinforcement learning method. Various techniques have been developed to deal with the memorization/generalization problem, demonstrating the superior ability of artificial neural network implementations. In this paper, the authors address the issue of designing the reinforcement so as to optimize the exploration part of the learning. They also present and summarize works relative to the use of bias intended to achieve the effective synthesis of the desired behavior. Demonstrative experiments involving a self-organizing map implementation of the Q-learning and real mobile robots (Nomad 200 and Khepera) in a task of obstacle avoidance behavior synthesis are described. 3 figs., 5 tabs.
Date:
June 1, 1998
Creator:
Touzet, Claude F. & Santos, Juan Miguel
Object Type:
Article
System:
The UNT Digital Library