Science.gov

Sample records for advisory navigation concept

  1. 75 FR 6215 - Houston/Galveston Navigation Safety Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-08

    ... SECURITY Coast Guard Houston/Galveston Navigation Safety Advisory Committee AGENCY: Coast Guard, DHS. ACTION: Notice of meetings. SUMMARY: The Houston/Galveston Navigation Safety Advisory Committee... improvements, aids to navigation, area projects impacting safety on the Houston Ship Channel, and various...

  2. 75 FR 27353 - Navigation Safety Advisory Council; Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-14

    ... SECURITY Coast Guard Navigation Safety Advisory Council; Meeting AGENCY: Coast Guard, DHS. ACTION: Notice of meeting. SUMMARY: The Navigation Safety Advisory Council (NAVSAC) will meet in Washington, DC, to discuss various issues relating to the safety of navigation. The meeting will be open to the public....

  3. 75 FR 23793 - Houston/Galveston Navigation Safety Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-04

    ... SECURITY Coast Guard Houston/Galveston Navigation Safety Advisory Committee AGENCY: Coast Guard, DHS. ACTION: Notice of meeting. SUMMARY: The Houston/Galveston Navigation Safety Advisory Committee... improvements, aids to navigation, area projects impacting safety on the Houston Ship Channel, and...

  4. 78 FR 19277 - Navigation Safety Advisory Council; Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-29

    ... SECURITY United States Coast Guard Navigation Safety Advisory Council; Meeting AGENCY: United States Coast... Safety Advisory Council (NAVSAC) will meet April 10-11, 2013, in Arlington, Virginia to discuss matters...; navigation regulations and equipment; routing measures; marine information; diving safety; and aids...

  5. Autonomous navigation - The ARMMS concept

    NASA Astrophysics Data System (ADS)

    Wood, L. J.; Jones, J. B.; Mease, K. D.; Kwok, J. H.; Goltz, G. L.; Kechichian, J. A.

    1984-08-01

    A conceptual design is outlined for the navigation subsystem of the Autonomous Redundancy and Maintenance Management Subsystem (ARMMS). The principal function of this navigation subsystem is to maintain the spacecraft over a specified equatorial longitude to within + or - 3 deg. In addition, the navigation subsystem must detect and correct internal faults. It comprises elements for a navigation executive and for orbit determination, trajectory, maneuver planning, and maneuver command. Each of these elements is described. The navigation subsystem is to be used in the DSCS III spacecraft.

  6. 77 FR 19302 - Navigation Safety Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-30

    ... Register (73 FR 3316). Docket: For access to the docket to read documents or comments related to this... measures, marine information, diving safety, and aids to navigation systems. The meeting will be open to..., routing measures, marine information, diving safety, and aids to navigation systems. Agenda The...

  7. 77 FR 67658 - Navigation Safety Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-13

    ... FR 3316). Docket: For access to the docket to read documents or comments related to this notice, go... measures, marine information, diving safety, and aids to navigation systems. The meeting will be open to... measures, marine information, diving safety, and aids to navigation systems. Agenda: The NAVSAC will...

  8. 76 FR 63934 - Navigation Safety Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-14

    ... of the Federal Register (73 FR 3316). Docket: For access to the docket to read documents or comments... measures, marine information, diving safety, and aids to navigation systems. The meeting will be open to... information, diving safety, and aids to navigation systems. Agenda The NAVSAC will meet to review, discuss...

  9. 76 FR 2916 - Houston/Galveston Navigation Safety Advisory Committee; Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-18

    ... SECURITY Coast Guard Houston/Galveston Navigation Safety Advisory Committee; Meetings AGENCY: Coast Guard, DHS. ACTION: Notice of Meetings. SUMMARY: The Houston/Galveston Navigation Safety Advisory Committee... to discuss waterway improvements, aids to navigation, area projects impacting safety on the...

  10. Libration Point Navigation Concepts Supporting Exploration Vision

    NASA Technical Reports Server (NTRS)

    Carpenter, J. Russell; Folta, David C.; Moreau, Michael C.; Gramling, Cheryl J.

    2004-01-01

    Farquhar described several libration point navigation concepts that would appear to support NASA s current exploration vision. One concept is a Lunar Relay Satellite operating in the vicinity of Earth-Moon L2, providing Earth-to-lunar far-side and long- range surface-to-surface navigation and communications capability. Reference [ 1] lists several advantages of such a system in comparison to a lunar orbiting relay satellite constellation. Among these are one or two vs. many satellites for coverage, simplified acquisition and tracking due to very low relative motion, much longer contact times, and simpler antenna pointing. An obvious additional advantage of such a system is that uninterrupted links to Earth avoid performing critical maneuvers "in the blind." Another concept described is the use of Earth-Moon L1 for lunar orbit rendezvous, rather than low lunar orbit as was done for Apollo. This rendezvous technique would avoid large plane change and high fuel cost associated with high latitude landing sites and long stay times. Earth-Moon L1 also offers unconstrained launch windows from the lunar surface. Farquhar claims this technique requires only slightly higher fuel cost than low lunar orbit rendezvous for short-stay equatorial landings. Farquhar also describes an Interplanetary Transportation System that would use libration points as terminals for an interplanetary shuttle. This approach would offer increased operational flexibility in terms of launch windows, rendezvous, aborts, etc. in comparison to elliptical orbit transfers. More recently, other works including Folta[3] and Howell[4] have shown that patching together unstable trajectories departing Earth-Moon libration points with stable trajectories approaching planetary libration points may also offer lower overall fuel costs than elliptical orbit transfers. Another concept Farquhar described was a Deep Space Relay at Earth-Moon IA and/or L5 that would serve as a high data rate optical navigation and

  11. Automated endoscopic navigation and advisory system from medical image

    NASA Astrophysics Data System (ADS)

    Kwoh, Chee K.; Khan, Gul N.; Gillies, Duncan F.

    1999-05-01

    In this paper, we present a review of the research conducted by our group to design an automatic endoscope navigation and advisory system. The whole system can be viewed as a two-layer system. The first layer is at the signal level, which consists of the processing that will be performed on a series of images to extract all the identifiable features. The information is purely dependent on what can be extracted from the 'raw' images. At the signal level, the first task is performed by detecting a single dominant feature, lumen. Few methods of identifying the lumen are proposed. The first method used contour extraction. Contours are extracted by edge detection, thresholding and linking. This method required images to be divided into overlapping squares (8 by 8 or 4 by 4) where line segments are extracted by using a Hough transform. Perceptual criteria such as proximity, connectivity, similarity in orientation, contrast and edge pixel intensity, are used to group edges both strong and weak. This approach is called perceptual grouping. The second method is based on a region extraction using split and merge approach using spatial domain data. An n-level (for a 2' by 2' image) quadtree based pyramid structure is constructed to find the most homogenous large dark region, which in most cases corresponds to the lumen. The algorithm constructs the quadtree from the bottom (pixel) level upward, recursively and computes the mean and variance of image regions corresponding to quadtree nodes. On reaching the root, the largest uniform seed region, whose mean corresponds to a lumen is selected that is grown by merging with its neighboring regions. In addition to the use of two- dimensional information in the form of regions and contours, three-dimensional shape can provide additional information that will enhance the system capabilities. Shape or depth information from an image is estimated by various methods. A particular technique suitable for endoscopy is the shape from shading

  12. 78 FR 65006 - National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board; Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-30

    ... SPACE ADMINISTRATION National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board; Meeting AGENCY: National Aeronautics and Space Administration (NASA). ACTION: Notice of meeting. SUMMARY... President's 2004 U.S. Space-Based Positioning, Navigation, and Timing (PNT) Policy, the National...

  13. 78 FR 23598 - National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board; Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-19

    ... SPACE ADMINISTRATION National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board; Meeting AGENCY: National Aeronautics and Space Administration (NASA). ACTION: Notice of Meeting. SUMMARY... President's 2004 U.S. Space-Based Positioning, Navigation, and Timing (PNT) Policy, the National...

  14. 76 FR 65540 - National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board; Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-21

    ... SPACE ADMINISTRATION National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board; Meeting AGENCY: National Aeronautics and Space Administration (NASA). ACTION: Notice of meeting. SUMMARY...'s 2004 U.S. Space-Based Positioning, Navigation, and Timing Policy, the National Aeronautics...

  15. 77 FR 44288 - National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board; Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-27

    ... SPACE ADMINISTRATION National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board; Meeting AGENCY: National Aeronautics and Space Administration (NASA). ACTION: Notice of meeting. SUMMARY... President's 2004 U.S. Space-Based Positioning, Navigation, and Timing (PNT) Policy, the National...

  16. 76 FR 30202 - National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board; Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-24

    ... following topics: Update on U.S. Space-Based PNT Policy and Global Positioning System (GPS) modernization... SPACE ADMINISTRATION National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board.... Space-Based Positioning, Navigation, and Timing (PNT) Policy, the National Aeronautics and...

  17. 76 FR 33773 - Navigation Safety Advisory Council; Vacancies

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-09

    ... the Road, navigation regulations and equipment, routing measures, marine information, diving safety..., diving safety, and aids to navigation systems. The NAVSAC is expected to meet at least twice each year... navigation, maritime law, vessel safety, port safety, or commercial diving safety. Each member shall...

  18. 76 FR 27337 - Houston/Galveston Navigation Safety Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-11

    ... of the Federal Register (73 FR 3316). Docket: For access to the docket to read background documents... Advisory Committee postponed its originally scheduled February 3, 2011, meeting due to inclement...

  19. 78 FR 32412 - Navigation Safety Advisory Council; Vacancies

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-30

    ..., marital status, disability and generic information, age, membership in an employee organization, or other... and equipment, routing measures, marine information, diving safety, and aids to navigation systems...@uscg.mil FOR FURTHER INFORMATION CONTACT: Mr. Mike Sollosi, the NAVSAC Alternate Designated...

  20. 77 FR 15784 - Navigation Safety Advisory Council; Vacancies

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-16

    ..., disability and generic information, age, membership in an employee organization, or other non-merit factor... and equipment, routing measures, marine information, diving safety, and aids to navigation systems....gov . Members of the public should not submit personal information into a docket, as it becomes...

  1. Wake Vortex Advisory System (WakeVAS) Concept of Operations

    NASA Technical Reports Server (NTRS)

    Rutishauser, David; Lohr, Gary; Hamilton, David; Powers, Robert; McKissick, Burnell; Adams, Catherine; Norris, Edward

    2003-01-01

    NASA Langley Research Center has a long history of aircraft wake vortex research, with the most recent accomplishment of demonstrating the Aircraft VOrtex Spacing System (AVOSS) at Dallas/Forth Worth International Airport in July 2000. The AVOSS was a concept for an integration of technologies applied to providing dynamic wake-safe reduced spacing for single runway arrivals, as compared to current separation standards applied during instrument approaches. AVOSS included state-of-the-art weather sensors, wake sensors, and a wake behavior prediction algorithm. Using real-time data AVOSS averaged a 6% potential throughput increase over current standards. This report describes a Concept of Operations for applying the technologies demonstrated in the AVOSS to a variety of terminal operations to mitigate wake vortex capacity constraints. A discussion of the technological issues and open research questions that must be addressed to design a Wake Vortex Advisory System (WakeVAS) is included.

  2. 76 FR 22924 - Re-Establishment of the National Space-Based Positioning, Navigation, and Timing (PNT) Advisory...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-25

    ... SPACE ADMINISTRATION Re-Establishment of the National Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board AGENCY: National Aeronautics and Space Administration (NASA). ACTION: Notice of...'s 2004 U.S. Space-Based PNT Policy established on December 8, 2004, and continuing and...

  3. Libration Point Navigation Concepts Supporting the Vision for Space Exploration

    NASA Technical Reports Server (NTRS)

    Carpenter, J. Russell; Folta, David C.; Moreau, Michael C.; Quinn, David A.

    2004-01-01

    This work examines the autonomous navigation accuracy achievable for a lunar exploration trajectory from a translunar libration point lunar navigation relay satellite, augmented by signals from the Global Positioning System (GPS). We also provide a brief analysis comparing the libration point relay to lunar orbit relay architectures, and discuss some issues of GPS usage for cis-lunar trajectories.

  4. Navigation Concepts for the James Webb Space Telescope

    NASA Technical Reports Server (NTRS)

    Long, Anne; Leung, Dominic; Kelbel, David; Beckman, Mark; Grambling, Cheryl

    2003-01-01

    This paper evaluates the performance that can be achieved using candidate ground and onboard navigation approaches for operation of the James Webb Space Telescope, which will be in an orbit about the Sun-Earth L2 libration point. The ground navigation approach processes standard range and Doppler measurements from the Deep Space Network The onboard navigation approach processes celestial object measurements and/or ground-to- spacecraft Doppler measurements to autonomously estimate the spacecraft s position and velocity and Doppler reference frequency. Particular attention is given to assessing the absolute position and velocity accuracy that can be achieved in the presence of the frequent spacecraft reorientations and momentum unloads planned for this mission. The ground navigation approach provides stable navigation solutions using a tracking schedule of one 30-minute contact per day. The onboard navigation approach that uses only optical quality celestial object measurements provides stable autonomous navigation solutions. This study indicates that unmodeled changes in the solar radiation pressure cross-sectional area and modeled momentum unload velocity changes are the major error sources. These errors can be mitigated by modeling these changes, by estimating corrections to compensate for the changes, or by including acceleration measurements.

  5. Navigation in head and neck oncological surgery: an emerging concept.

    PubMed

    Gangloff, P; Mastronicola, R; Cortese, S; Phulpin, B; Sergeant, C; Guillemin, F; Eluecque, H; Perrot, C; Dolivet, G

    2011-01-01

    Navigation surgery, initially applied in rhinology, neurosurgery and orthopaedic cases, has been developed over the last twenty years. Surgery based on computed tomography data has become increasingly important in the head and neck region. The technique for hardware fusion between RMI and computed tomography is also becoming more useful. We use such device since 2006 in head and neck carcinologic situation. Navigation allows control of the resection in order to avoid and protect the precise anatomical structures (vessels and nerves). It also guides biopsy and radiofrequency. Therefore, quality of life is much more increased and morbidity is decreased for these patients who undergo major and mutilating head and neck surgery. Here we report the results of 33 navigation procedures performed for 31 patients in our institution. PMID:22908541

  6. Navigating the fifth dimension: new concepts in interactive multimodality and multidimensional image navigation

    NASA Astrophysics Data System (ADS)

    Ratib, Osman; Rosset, Antoine; Dahlbom, Magnus; Czernin, Johannes

    2005-04-01

    Display and interpretation of multi dimensional data obtained from the combination of 3D data acquired from different modalities (such as PET-CT) require complex software tools allowing the user to navigate and modify the different image parameters. With faster scanners it is now possible to acquire dynamic images of a beating heart or the transit of a contrast agent adding a fifth dimension to the data. We developed a DICOM-compliant software for real time navigation in very large sets of 5 dimensional data based on an intuitive multidimensional jog-wheel widely used by the video-editing industry. The software, provided under open source licensing, allows interactive, single-handed, navigation through 3D images while adjusting blending of image modalities, image contrast and intensity and the rate of cine display of dynamic images. In this study we focused our effort on the user interface and means for interactively navigating in these large data sets while easily and rapidly changing multiple parameters such as image position, contrast, intensity, blending of colors, magnification etc. Conventional mouse-driven user interface requiring the user to manipulate cursors and sliders on the screen are too cumbersome and slow. We evaluated several hardware devices and identified a category of multipurpose jogwheel device that is used in the video-editing industry that is particularly suitable for rapidly navigating in five dimensions while adjusting several display parameters interactively. The application of this tool will be demonstrated in cardiac PET-CT imaging and functional cardiac MRI studies.

  7. Navigation performance of the Triscan concept for shipboard VTOL aircraft operations

    NASA Technical Reports Server (NTRS)

    Mcgee, L. A.; Schmidt, S. F.; Miyashiro, S. K.

    1978-01-01

    The paper deals with the Triscan concept - a dual-antenna microwave landing guidance system, using triangulation for close-in accuracy - developed to facilitate the landing of VTOL aircraft on ships in all-weather conditions. Analysis of the navigation performance of an onboard system receiving data from Triscan and data-linked information regarding the motion of the ship showed that the approach navigation performance depends on the approach path profile flown, the magnitude of the measurement bias error, and the navigation system's knowledge of the shipboard landing pad motion, which was implemented through the concept of a landing pad deviation vector.

  8. Problems and concepts of space station guidance, navigation, and control

    NASA Technical Reports Server (NTRS)

    Guha, A. K.; Craig, M.

    1984-01-01

    The Space Station System is defined as a network of space and ground assets which work together to support a variety of missions including commercial missions, science and applications missions, and technology development missions. The elements of the Space Station System include a Space Station Base, Space Platforms, Free Flyers, a Teleoperator Manuevering System (TMS), Orbital Transfer Vehicles (OTV), Orbiter Berthing Equipment, and Ground Support Equipment and Facilities. Guidance, navigation, and control (GNC) subsystem requirements are considered along with configuration trades.

  9. Current sensing for navigated electrosurgery: proof of concept

    NASA Astrophysics Data System (ADS)

    Carter, K.; Lasso, A.; Ungi, T.; Morin, E.; Fichtinger, G.

    2016-03-01

    PURPOSE: Tracked power-tools are routinely used in computer-assisted intervention and surgical systems. In order to properly perform temporal and spatial monitoring of the tracked tool with the navigation system, it is important to know when the tool, such as an electrosurgical cauterizer, is being activated during surgery. We have developed a general purpose current sensor that can be augmented to tracked surgical devices in order to inform the surgeon and the navigation system when the tool is activated. METHODS: Two non-invasive AC current sensors, two peak detector circuits, one voltage comparator circuit, and a microcontroller were used to detect when an electrosurgical cauterizer is being powered on and differentiate between the cut and coagulation modes. The system was tested by cauterizing various substances at varied power ratings. RESULTS: By comparing the ratio of amplitudes as well as the frequencies of the signals, the current sensing system is able to differentiate between on/off, cut/coagulation, as well as when cauterizer tissue. DISCUSSION: The current sensing system is able to detect when the cauterizer is being powered on and can differentiate between monopolar cut and coagulation modes. CONCLUSION: This system shows promise for detecting when the cauterizer is being powered on and in the future could be integrated with a navigation system in order to easily temporally monitor the electrosurgical tool.

  10. Simulating the Liaison Navigation Concept in a Geo + Earth-Moon Halo Constellation

    NASA Technical Reports Server (NTRS)

    Fujimoto, K.; Leonard, J. M.; McGranaghan, R. M.; Parker, J. S.; Anderson, R. L.; Born, G. H.

    2012-01-01

    Linked Autonomous Interplanetary Satellite Orbit Navigation, or LiAISON, is a novel satellite navigation technique where relative radiometric measurements between two or more spacecraft in a constellation are processed to obtain the absolute state of all spacecraft. The method leverages the asymmetry of the gravity field that the constellation exists in. This paper takes a step forward in developing a high fidelity navigation simulation for the LiAISON concept in an Earth-Moon constellation. In particular, we aim to process two-way Doppler measurements between a satellite in GEO orbit and another in a halo orbit about the Earth-Moon L1 point.

  11. How Concept-Mapping Perception Navigates Student Knowledge Transfer Performance

    ERIC Educational Resources Information Center

    Tseng, Kuo-Hung; Chang, Chi-Cheng; Lou, Shi-Jer; Tan, Yue; Chiu, Chien-Jung

    2012-01-01

    The purpose of this paper is to investigate students' perception of concept maps as a learning tool where knowledge transfer is the goal. This article includes an evaluation of the learning performance of 42 undergraduate students enrolled in a nanotech course at a university in Taiwan. Canonical correlation and MANOVA analyses were employed to…

  12. Track initiation of bearings-only tracking based on ant navigation concept

    NASA Astrophysics Data System (ADS)

    Zhu, Jihong; Xu, Benlian; Wang, Zhiquan

    2010-11-01

    A novel heuristic track initiation method is developed for the bearing-only multi-sensor-multi-target tracking system, in which each target is assumed to move with a straight line. The key idea of the proposed method is derived from the ant navigation concept in its foraging life, which differs from the traditional ant colony optimization algorithm, and it utilizes the concept of path integration and visual landmarks in ants' navigation toolkit to find the exact positions of each target. Numerous numerical simulations are conducted and the effectiveness of the proposed track initiation method is verified according to the probability of correct track initiation.

  13. Telecommunications, navigation and information management concept overview for the Space Exploration Initiative program

    NASA Technical Reports Server (NTRS)

    Bell, Jerome A.; Stephens, Elaine; Barton, Gregg

    1991-01-01

    An overview is provided of the Space Exploration Initiative (SEI) concepts for telecommunications, information systems, and navigation (TISN), and engineering and architecture issues are discussed. The SEI program data system is reviewed to identify mission TISN interfaces, and reference TISN concepts are described for nominal, degraded, and mission-critical data services. The infrastructures reviewed include telecommunications for robotics support, autonomous navigation without earth-based support, and information networks for tracking and data acquisition. Four options for TISN support architectures are examined which relate to unique SEI exploration strategies. Detailed support estimates are given for: (1) a manned stay on Mars; (2) permanent lunar and Martian settlements; short-duration missions; and (4) systematic exploration of the moon and Mars.

  14. Concept of "One Window" Data Exchange System Fulfilling the Recommendation for e-Navigation System

    NASA Astrophysics Data System (ADS)

    Filipkowski, Damian; Wawruch, Ryszard

    The implementation in maritime radio-communication of so called "One window concept" for exchange of information between a ship and a port and coastal state authorities requires designation of one contact point on shore for these purposes, e.g. harbour master or ships' monitoring or traffic control centre. In Poland, as contact points regional and local centres of the Polish National Maritime Safety System will be designated. Paper describes the proposal for system of data exchange between a ship and a shore contact point, containing definition, functions and architecture of proposed system, possible directions of information flow and levels of access, fulfilling requirements of this concept and recommendation for e-navigation system developed on the basis of the International Maritime Organization (IMO) and International Association of Marine Aids to Navigation and Lighthouse Authorities (IALA) working papers.

  15. The Brown-Roberts-Wells (BRW) arc: its concept as a spatial navigation system.

    PubMed

    Wells, T H; Cosman, E R; Ball, R E

    1987-01-01

    The Brown-Roberts-Wells (BRW) Arc System can be compared to spatial navigation because both utilize the concept of direction to and spatial location of a point in space by referencing to a horizontal angle (azimuth) and a vertical angle (declination) relative to the horizon. The BRW system also permits the determination of the distance from a reference surface of the arc system to the point (target). The methods of determining these parameters are explained in detail with illustrations. PMID:3329834

  16. Navigating practice and academic change in collaborative partnership with a community advisory board.

    PubMed

    Taylor, Evelyn; Marino, Deborah; Rasor-Greenhalgh, Sue; Hudak, Sandra

    2010-01-01

    University-based allied health programs must prepare entry-level professionals for a continually-evolving practice landscape. Health care education must demonstrate relevance to community needs in an environment of diminishing resources and increased scrutiny from governmental and accreditation bodies. Diverse perspectives, insights, and strategic counsel are needed to meet these challenges. Strategies associated with the development and functions of corporate and non-profit boards were used to tailor a community advisory board for a dietetics program at a public university. Over a 4-year period, this new board established an annual scholarship conference, funded an endowed scholarship, organized a student mentorship program, and secured new program equipment. The board played a pivotal role in development of and securing administrative approval for the establishment of a Nutrition Center for research, innovative practice, and service learning. In a recent accreditation site visit report, the role of the advisory board was cited as helping to meet education standards. An active advisory board can support strategic program innovation, resource development and help prepare health professionals for 21st century practice. The change-oriented, creative approach described can serve as a model for professional education programs seeking to engage the community in the success of their students. PMID:21174010

  17. Airspace Concept Evaluation System (ACES), Concept Simulations using Communication, Navigation and Surveillance (CNS) System Models

    NASA Technical Reports Server (NTRS)

    Kubat, Greg; Vandrei, Don

    2006-01-01

    Project Objectives include: a) CNS Model Development; b Design/Integration of baseline set of CNS Models into ACES; c) Implement Enhanced Simulation Capabilities in ACES; d) Design and Integration of Enhanced (2nd set) CNS Models; and e) Continue with CNS Model Integration/Concept evaluations.

  18. Concepts for AutomatedPrecise Low Earth Orbiter Navigation With the Global Positioning System

    NASA Astrophysics Data System (ADS)

    Lichten, S. M.; Thornton, C. L.; Young, L. E.; Yunck, T. P.

    1998-01-01

    The Global Positioning System (GPS) is widely used for satellite positioning and navigation and for numerous geolocation activities. Real-time, onboard positioning accuracies for low Earth orbiters (LEOs) currently vary from 50 to 100 m for stand-alone conventional GPS tracking to somewhat better than 10 m with sophisticated onboard data filtering. Wide-area differential techniques, such as those supported by the Wide Area Augmentation System (WAAS) under development by the U.S. Federal Aviation Administration, offer real-time, kinematic positioning accuracies ranging from a few meters to better than a meter over well-defined local regions. This article describes a concept for extending the wide-area differential GPS techniques to achieve global, real-time positioning of LEOs at submeter accuracies. GPS design and operation policy issues that currently limit real-time, onboard precision positioning are discussed. The article then examines a number of proposed system design enhancements under consideration by the U.S. Department of Defense for the next-generation GPS, termed GPS III. These potential enhancements, if implemented, would enable global real-time, stand-alone position accuracies of a few decimeters for kinematic users and better than 10 cm for LEOs. Such capabilities could dramatically impact NASA missions by greatly lowering ground operations costs, as well as navigation and orbit determination costs in general.

  19. Autonomous navigation - The ARMMS concept. [Autonomous Redundancy and Maintenance Management Subsystem

    NASA Technical Reports Server (NTRS)

    Wood, L. J.; Jones, J. B.; Mease, K. D.; Kwok, J. H.; Goltz, G. L.; Kechichian, J. A.

    1984-01-01

    A conceptual design is outlined for the navigation subsystem of the Autonomous Redundancy and Maintenance Management Subsystem (ARMMS). The principal function of this navigation subsystem is to maintain the spacecraft over a specified equatorial longitude to within + or - 3 deg. In addition, the navigation subsystem must detect and correct internal faults. It comprises elements for a navigation executive and for orbit determination, trajectory, maneuver planning, and maneuver command. Each of these elements is described. The navigation subsystem is to be used in the DSCS III spacecraft.

  20. Technical concepts for vascular electromagnetic navigated interventions: aortic in situ fenestration and transjugular intrahepatic porto-systemic shunts.

    PubMed

    Penzkofer, Tobias; Isfort, Peter; Na, Hong-Sik; Wilkmann, Christoph; Osterhues, Sabine; Besting, Andreas; Hänisch, Christoph; Bisplinghoff, Stefan; Jansing, Johannes; von Werder, Sylvie; Gooding, Jorge; de la Fuente, Mathias; Mahnken, Andreas H; Disselhorst-Klug, Catherine; Schmitz-Rode, Thomas; Kuhl, Christiane K; Bruners, Philipp

    2014-04-01

    This work presents concepts for complex endovascular procedures using electromagnetic navigation technology (EMT). Navigation software interfacing a standard commercially available navigation system was developed, featuring registration, electromagnetic field distortion correction, breathing motion detection and gating, and state-of-the-art 3D imaging post processing. Protocols for endovascularly placed, in-situ fenestrated abdominal aortic stent grafts and an EMT guided transjugular intrahepatic portosystemic shunt (TIPSS) creation have been designed. A dedicated set of interventional devices was developed for each of the procedures: For aortic in-situ fenestration a combination of high-porosity stentgrafts, steerable catheters and electromagnetically navigated guidewires was used, for TIPSS a dual-navigated (sheath and stylet) TIPSS-device was designed and manufactured. The developed devices underwent phantom testing, in preparation for animal experiments to prove the feasibility of the approach. Once established, these systems could aid in performing these challenging interventional radiology procedures, exploiting the unique characteristics of electromagnetic navigation and solving multiple of the problems associated with these interventions being performed under X-ray fluoroscopy, such as lacking real-time 3D information or extensive exposure to ionizing radiation. PMID:24176959

  1. Development and Evaluation of 2-D and 3-D Exocentric Synthetic Vision Navigation Display Concepts for Commercial Aircraft

    NASA Technical Reports Server (NTRS)

    Prinzel, Lawrence J., III; Kramer, Lynda J.; Arthur, J. J., III; Bailey, Randall E.; Sweeters, Jason L.

    2005-01-01

    NASA's Synthetic Vision Systems (SVS) project is developing technologies with practical applications that will help to eliminate low visibility conditions as a causal factor to civil aircraft accidents while replicating the operational benefits of clear day flight operations, regardless of the actual outside visibility condition. The paper describes experimental evaluation of a multi-mode 3-D exocentric synthetic vision navigation display concept for commercial aircraft. Experimental results evinced the situation awareness benefits of 2-D and 3-D exocentric synthetic vision displays over traditional 2-D co-planar navigation and vertical situation displays. Conclusions and future research directions are discussed.

  2. Definition study of land/sea civil user navigational location monitoring systems for NAVSTAR GPS: User requirements and systems concepts

    NASA Technical Reports Server (NTRS)

    Devito, D. M.

    1981-01-01

    A low-cost GPS civil-user mobile terminal whose purchase cost is substantially an order of magnitude less than estimates for the military counterpart is considered with focus on ground station requirements for position monitoring of civil users requiring this capability and the civil user navigation and location-monitoring requirements. Existing survey literature was examined to ascertain the potential users of a low-cost NAVSTAR receiver and to estimate their number, function, and accuracy requirements. System concepts are defined for low cost user equipments for in-situ navigation and the retransmission of low data rate positioning data via a geostationary satellite to a central computing facility.

  3. Light Detection and Ranging-Based Terrain Navigation: A Concept Exploration

    NASA Technical Reports Server (NTRS)

    Campbell, Jacob; UijtdeHaag, Maarten; vanGraas, Frank; Young, Steve

    2003-01-01

    This paper discusses the use of Airborne Light Detection And Ranging (LiDAR) equipment for terrain navigation. Airborne LiDAR is a relatively new technology used primarily by the geo-spatial mapping community to produce highly accurate and dense terrain elevation maps. In this paper, the term LiDAR refers to a scanning laser ranger rigidly mounted to an aircraft, as opposed to an integrated sensor system that consists of a scanning laser ranger integrated with Global Positioning System (GPS) and Inertial Measurement Unit (IMU) data. Data from the laser range scanner and IMU will be integrated with a terrain database to estimate the aircraft position and data from the laser range scanner will be integrated with GPS to estimate the aircraft attitude. LiDAR data was collected using NASA Dryden's DC-8 flying laboratory in Reno, NV and was used to test the proposed terrain navigation system. The results of LiDAR-based terrain navigation shown in this paper indicate that airborne LiDAR is a viable technology enabler for fully autonomous aircraft navigation. The navigation performance is highly dependent on the quality of the terrain databases used for positioning and therefore high-resolution (2 m post-spacing) data was used as the terrain reference.

  4. Autonomous vehicle navigation utilizing fuzzy controls concepts for a next generation wheelchair.

    PubMed

    Hansen, J D; Barrett, S F; Wright, C H G; Wilcox, M

    2008-01-01

    Three different positioning techniques were investigated to create an autonomous vehicle that could accurately navigate towards a goal: Global Positioning System (GPS), compass dead reckoning, and Ackerman steering. Each technique utilized a fuzzy logic controller that maneuvered a four-wheel car towards a target. The reliability and the accuracy of the navigation methods were investigated by modeling the algorithms in software and implementing them in hardware. To implement the techniques in hardware, positioning sensors were interfaced to a remote control car and a microprocessor. The microprocessor utilized the sensor measurements to orient the car with respect to the target. Next, a fuzzy logic control algorithm adjusted the front wheel steering angle to minimize the difference between the heading and bearing. After minimizing the heading error, the car maintained a straight steering angle along its path to the final destination. The results of this research can be used to develop applications that require precise navigation. The design techniques can also be implemented on alternate platforms such as a wheelchair to assist with autonomous navigation. PMID:19141895

  5. Flight assessment of a data-link-based navigation-guidance concept

    NASA Technical Reports Server (NTRS)

    Abbott, T. S.

    1983-01-01

    With the proposed introduction of a data-link provision into the Air-Traffic-control (ATC) system, the capability will exist to supplement the ground-air, voice (radio) link with digital, data-link information. Additionally, ATC computers could provide, via the data link guidance and navigation information to the pilot which could then be presented in much the same manner as conventional navigation information. The primary objective of this study was to assess the feasibility and acceptability of using 4-sec and 12-sec information updating to drive conventional cockpit-navigation-instrument formats for path-tracking guidance. A flight test, consisting of 19 tracking tasks, was conducted and, through the use of pilot questionnaires and performance data, the following results were obtained. From a performance standpoint, the 4-sec and 12-sec updating led to a slight degradation in path-tracking performance, relative to continuous updating. From the pilot's viewpoint, the 12-sec data interval was suitable for long path segments (greater than 2 min of flight time), but it was difficult to use on shorter segments because of higher work load and insufficient stabilization time. Overall, it was determined that the utilization of noncontinuous data for navigation was both feasible and acceptable for the prescribed task.

  6. Proof-of-concept of a laser mounted endoscope for touch-less navigated procedures

    PubMed Central

    Kral, Florian; Gueler, Oezguer; Perwoeg, Martina; Bardosi, Zoltan; Puschban, Elisabeth J; Riechelmann, Herbert; Freysinger, Wolfgang

    2013-01-01

    Background and Objectives During navigated procedures a tracked pointing device is used to define target structures in the patient to visualize its position in a registered radiologic data set. When working with endoscopes in minimal invasive procedures, the target region is often difficult to reach and changing instruments is disturbing in a challenging, crucial moment of the procedure. We developed a device for touch less navigation during navigated endoscopic procedures. Materials and Methods A laser beam is delivered to the tip of a tracked endoscope angled to its axis. Thereby the position of the laser spot in the video-endoscopic images changes according to the distance between the tip of the endoscope and the target structure. A mathematical function is defined by a calibration process and is used to calculate the distance between the tip of the endoscope and the target. The tracked tip of the endoscope and the calculated distance is used to visualize the laser spot in the registered radiologic data set. Results In comparison to the tracked instrument, the touch less target definition with the laser spot yielded in an over and above error of 0.12 mm. The overall application error in this experimental setup with a plastic head was 0.61 ± 0.97 mm (95% CI −1.3 to +2.5 mm). Conclusion Integrating a laser in an endoscope and then calculating the distance to a target structure by image processing of the video endoscopic images is accurate. This technology eliminates the need for tracked probes intraoperatively and therefore allows navigation to be integrated seamlessly in clinical routine. However, it is an additional chain link in the sequence of computer-assisted surgery thus influencing the application error. Lasers Surg. Med. 45:377–382, 2013. © 2013 Wiley Periodicals, Inc. PMID:23737122

  7. Study of aircraft centered navigation, guidance, and traffic situation system concept for terminal area operation

    NASA Technical Reports Server (NTRS)

    Anderson, W. W.; Will, R. W.; Grantham, C.

    1972-01-01

    A concept for automating the control of air traffic in the terminal area in which the primary man-machine interface is the cockpit is described. The ground and airborne inputs required for implementing this concept are discussed. Digital data link requirements of 10,000 bits per second are explained. A particular implementation of this concept including a sequencing and separation algorithm which generates flight paths and implements a natural order landing sequence is presented. Onboard computer/display avionics utilizing a traffic situation display is described. A preliminary simulation of this concept has been developed which includes a simple, efficient sequencing algorithm and a complete aircraft dynamics model. This simulated jet transport was flown through automated terminal-area traffic situations by pilots using relatively sophisticated displays, and pilot performance and observations are discussed.

  8. Performance Evaluation of SARDA: An Individual Aircraft-Based Advisory Concept for Surface Management

    NASA Technical Reports Server (NTRS)

    Jung, Yoon; Malik, Waqar; Tobias, Leonard; Gupta, Gautam; Hoang, Ty; Hayashi, Miwa

    2015-01-01

    Surface operations at airports in the US are based on tactical operations, where departure aircraft primarily queue up and wait at the departure runways. NASAs Spot And Runway Departure Advisor (SARDA) tool was developed to address these inefficiencies through Air Traffic Control Tower advisories. The SARDA system is being updated to include collaborative gate hold, either tactically or strategically. This paper presents the results of the human-in-the-loop evaluation of the tactical gate hold version of SARDA in a 360 degree simulated tower setting. The simulations were conducted for the east side of the Dallas-Fort Worth airport. The new system provides gate hold, ground controller and local controller advisories based on a single scheduler. Simulations were conducted with SARDA on and off, the off case reflecting current day operations with no gate hold. Scenarios based on medium (1.2x current levels) and heavy (1.5x current levels) traffic were explored. Data collected from the simulation was analyzed for runway usage, delay for departures and arrivals, and fuel consumption. Further, Traffic Management Initiatives were introduced for a subset of the aircraft. Results indicated that runway usage did not change with the use of SARDA, i.e., there was no loss in runway throughput as compared to baseline. Taxiing delay was significantly reduced with the use of advisory by 45 in medium scenarios and 60 in heavy. Arrival delay was unaffected by the use of advisory. Total fuel consumption was also reduced by 23 in medium traffic and 33 in heavy. TMI compliance appeared unaffected by the advisory.

  9. Performance Evaluation of Individual Aircraft Based Advisory Concept for Surface Management

    NASA Technical Reports Server (NTRS)

    Gupta, Gautam; Malik, Waqar; Tobias, Leonard; Jung, Yoon; Hong, Ty; Hayashi, Miwa

    2013-01-01

    Surface operations at airports in the US are based on tactical operations, where departure aircraft primarily queue up and wait at the departure runways. NASA's Spot And Runway Departure Advisor (SARDA) tool was developed to address these inefficiencies through Air Traffic Control Tower advisories. The SARDA system is being updated to include collaborative gate hold, either tactically or strategically. This paper presents the results of the human-in-the-loop evaluation of the tactical gate hold version of SARDA in a 360 degree simulated tower setting. The simulations were conducted for the east side of the Dallas/Fort Worth airport. The new system provides gate hold, ground controller and local controller advisories based on a single scheduler. Simulations were conducted with SARDA on and off, the off case reflecting current day operations with no gate hold. Scenarios based on medium (1.2x current levels) and heavy (1.5x current levels) traffic were explored. Data collected from the simulation was analyzed for runway usage, delay for departures and arrivals, and fuel consumption. Further, Traffic Management Initiatives were introduced for a subset of the aircraft. Results indicated that runway usage did not change with the use of SARDA, i.e., there was no loss in runway throughput as compared to baseline. Taxiing delay was significantly reduced with the use of advisory by 45% in medium scenarios and 60% in heavy. Arrival delay was unaffected by the use of advisory. Total fuel consumption was also reduced by 23% in medium traffic and 33% in heavy. TMI compliance appeared unaffected by the advisory

  10. Multi-topic assignment for exploratory navigation of consumer health information in NetWellness using formal concept analysis

    PubMed Central

    2014-01-01

    Background Finding quality consumer health information online can effectively bring important public health benefits to the general population. It can empower people with timely and current knowledge for managing their health and promoting wellbeing. Despite a popular belief that search engines such as Google can solve all information access problems, recent studies show that using search engines and simple search terms is not sufficient. Our objective is to provide an approach to organizing consumer health information for navigational exploration, complementing keyword-based direct search. Multi-topic assignment to health information, such as online questions, is a fundamental step for navigational exploration. Methods We introduce a new multi-topic assignment method combining semantic annotation using UMLS concepts (CUIs) and Formal Concept Analysis (FCA). Each question was tagged with CUIs identified by MetaMap. The CUIs were filtered with term-frequency and a new term-strength index to construct a CUI-question context. The CUI-question context and a topic-subject context were used for multi-topic assignment, resulting in a topic-question context. The topic-question context was then directly used for constructing a prototype navigational exploration interface. Results Experimental evaluation was performed on the task of automatic multi-topic assignment of 99 predefined topics for about 60,000 consumer health questions from NetWellness. Using example-based metrics, suitable for multi-topic assignment problems, our method achieved a precision of 0.849, recall of 0.774, and F1 measure of 0.782, using a reference standard of 278 questions with manually assigned topics. Compared to NetWellness’ original topic assignment, a 36.5% increase in recall is achieved with virtually no sacrifice in precision. Conclusion Enhancing the recall of multi-topic assignment without sacrificing precision is a prerequisite for achieving the benefits of navigational exploration. Our

  11. Confronting, Representing, and Believing Counterintuitive Concepts: Navigating the Natural and the Supernatural

    PubMed Central

    Lane, Jonathan D.; Harris, Paul. L.

    2014-01-01

    Recent research shows that even preschoolers are skeptical; they frequently reject claims from other people when the claims conflict with their own perceptions and concepts. Yet, despite their skepticism, both children and adults come to believe in a variety of phenomena that defy their first-hand perceptions and intuitive conceptions of the world. In this review, we explore how children and adults acquire such concepts. We describe how a similar developmental process underlies mental representation of both the natural and the supernatural world, and we detail this process for two prominent supernatural counterintuitive ideas—God and the afterlife. In doing so, we highlight the fact that conceptual development does not always move in the direction of greater empirical truth, as described within naturalistic domains. We consider factors that likely help overcome skepticism, and in doing so promote belief in counterintuitive phenomena. These factors include qualities of the learners, aspects of the context, qualities of the informants, and qualities of the information. PMID:24683418

  12. Confronting, Representing, and Believing Counterintuitive Concepts: Navigating the Natural and the Supernatural.

    PubMed

    Lane, Jonathan D; Harris, Paul L

    2014-03-01

    Recent research shows that even preschoolers are skeptical; they frequently reject claims from other people when the claims conflict with their own perceptions and concepts. Yet, despite their skepticism, both children and adults come to believe in a variety of phenomena that defy their first-hand perceptions and intuitive conceptions of the world. In this review, we explore how children and adults acquire such concepts. We describe how a similar developmental process underlies mental representation of both the natural and the supernatural world, and we detail this process for two prominent supernatural counterintuitive ideas-God and the afterlife. In doing so, we highlight the fact that conceptual development does not always move in the direction of greater empirical truth, as described within naturalistic domains. We consider factors that likely help overcome skepticism and, in doing so, promote belief in counterintuitive phenomena. These factors include qualities of the learners, aspects of the context, qualities of the informants, and qualities of the information. PMID:24683418

  13. United States Control Module Guidance, Navigation, and Control Subsystem Design Concept

    NASA Technical Reports Server (NTRS)

    Polites, M. E.; Bartlow, B. E.

    1997-01-01

    Should the Russian Space Agency (RSA) not participate in the International Space Station (ISS) program, then the United States (U.S.) National Aeronautics and Space Administration (NASA) may choose to execute the ISS mission. However, in order to do this, NASA must build two new space vehicles, which must perform the functions that the Russian vehicles and hardware were to perform. These functions include periodic ISS orbit reboost, initial ISS attitude control, and U.S. On-Orbit Segment (USOS) control Moment gyroscope (CMG) momentum desaturation. The two new NASA vehicles that must perform these functions are called the U.S. control module (USCM) and the U.S. resupply module. This paper presents a design concept for the USCM GN&C subsystem, which must play a major role in ISS orbit reboost and initial attitude control, plus USOS CMG momentum desaturation. The proposed concept is structured similar to the USOS GN&C subsystem, by design. It is very robust, in that it allows the USCM to assume a variety of vehicle attitudes and stay power-positive. It has a storage/safe mode that places the USCM in a gravity-gradient orientation and keeps it there for extended periods of time without consuming a great deal of propellant. Simulation results are presented and discussed that show the soundness of the design approach. An equipment list is included that gives detailed information on the baselined GN&C components.

  14. Apollo Onboard Navigation Techniques

    NASA Technical Reports Server (NTRS)

    Interbartolo, Michael

    2009-01-01

    This viewgraph presentation reviews basic navigation concepts, describes coordinate systems and identifies attitude determination techniques including Primary Guidance, Navigation and Control System (PGNCS) IMU management and Command and Service Module Stabilization and Control System/Lunar Module (LM) Abort Guidance System (AGS) attitude management. The presentation also identifies state vector determination techniques, including PGNCS coasting flight navigation, PGNCS powered flight navigation and LM AGS navigation.

  15. 75 FR 60145 - PNT Advisory Board; Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-29

    ... on U.S. Space-Based Positioning, Navigation and Timing (PNT) Policy and Global Positioning System... emerging international Global Navigation Satellite Systems (GNSS). Examine emerging trends and requirements... Space-Based Positioning, Navigation, and Timing (PNT) Advisory Board. DATES: Thursday, October 14,...

  16. Automated Pilot Advisory System

    NASA Technical Reports Server (NTRS)

    Parks, J. L., Jr.; Haidt, J. G.

    1981-01-01

    An Automated Pilot Advisory System (APAS) was developed and operationally tested to demonstrate the concept that low cost automated systems can provide air traffic and aviation weather advisory information at high density uncontrolled airports. The system was designed to enhance the see and be seen rule of flight, and pilots who used the system preferred it over the self announcement system presently used at uncontrolled airports.

  17. Micro Navigator

    NASA Technical Reports Server (NTRS)

    Blaes, B. R.; Kia, T.; Chau, S. N.

    2001-01-01

    Miniature high-performance low-mass space avionics systems are desired for planned future outer planetary exploration missions (i.e. Europa Orbiter/Lander, Pluto-Kuiper Express). The spacecraft fuel and mass requirements enabling orbit insertion is the driving requirement. The Micro Navigator is an integrated autonomous Guidance, Navigation & Control (GN&C)micro-system that would provide the critical avionics function for navigation, pointing, and precision landing. The Micro Navigator hardware and software allow fusion of data from multiple sensors to provide a single integrated vehicle state vector necessary for six degrees of freedom GN&C. The benefits of this MicroNavigator include: 1) The Micro Navigator employs MEMS devices that promise orders of magnitude reductions in mass power and volume of inertial sensors (accelerometers and gyroscopes), celestial sensing devices (startracker, sun sensor), and computing element; 2) The highly integrated nature of the unit will reduce the cost of flight missions. a) The advanced miniaturization technologies employed by the Micro Navigator lend themselves to mass production, and therefore will reduce production cost of spacecraft. b) The integral approach simplifies interface issues associated with discrete components and reduces cost associated with integration and test of multiple components; and 3) The integration of sensors and processing elements into a single unit will allow the Micro Navigator to encapsulate attitude information and determination functions into a single object. This is particularly beneficial for object-oriented software architectures that are used in advanced spacecraft. Additional information is contained in the original extended abstract.

  18. Interplanetary navigation

    NASA Technical Reports Server (NTRS)

    Stuart, J. R.

    1984-01-01

    The evolution of NASA's planetary navigation techniques is traced, and radiometric and optical data types are described. Doppler navigation; the Deep Space Network; differenced two-way range techniques; differential very long base interferometry; and optical navigation are treated. The Doppler system enables a spacecraft in cruise at high absolute declination to be located within a total angular uncertainty of 1/4 microrad. The two-station range measurement provides a 1 microrad backup at low declinations. Optical data locate the spacecraft relative to the target to an angular accuracy of 5 microrad. Earth-based radio navigation and its less accurate but target-relative counterpart, optical navigation, thus form complementary measurement sources, which provide a powerful sensory system to produce high-precision orbit estimates.

  19. PLANS '88 - IEEE Position Location and Navigation Symposium, Orlando, FL, Nov. 29-Dec. 2, 1988, Record

    NASA Astrophysics Data System (ADS)

    The present conference discusses topics in state-of-the-art space-based navigation systems, land vehicle navigation and position reporting, digital map technology, integrated navigation and flight control systems, GPS applications and equipment, geodetic surveying, radio navigation systems, and the positioning and pointing of space systems. Attention is also given to topics in the fields of inertial systems and technologies, differential GPS, aircraft navigation and traffic control, Federal radio-navigation policy, GPS/inertial navigation, integrated communication and navigation systems, and marine navigation and harbor traffic advisory systems.

  20. 78 FR 18615 - Navigation Safety Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-27

    ... regarding our public dockets in the January 17, 2008, issue of the Federal Register (73 FR 3316). Docket... enforcement vessels engaged in law enforcement activities. (2) NAVSAC Task 12-03--Unmanned vehicles/vessels... unmanned underwater vehicles, and unmanned surface vessels. NAVSAC was asked to provide a Resolution...

  1. 76 FR 21772 - Navigation Safety Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-18

    ... Register (73 FR 3316). Docket: For access to the docket to read documents or comments related to this... Unmanned Vessels The Council will continue its discussion of autonomous unmanned vessels and discuss...

  2. 78 FR 68077 - Navigation Safety Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-13

    ... January 17, 2008, issue of the Federal Register (73 FR 3316). Docket: For access to the docket to read... following tasks as appropriate: (1) NAVSAC Task 12-03--Unmanned vehicles/vessels (UV). The Council was asked... should employ AIS, and propose additional rules/standards of operation for both unmanned...

  3. Study of the global positioning system for maritime concepts/applications: Study of the feasibility of replacing maritime shipborne navigation systems with NAVSTAR

    NASA Technical Reports Server (NTRS)

    Winn, C. B.; Huston, W.

    1981-01-01

    A geostationary reference satellite (REFSAT) that broadcasts every four seconds updated GPS satellite coordinates was developed. This procedure reduces the complexity of the GPS receiver. The economic and performance payoffs associated with replacing maritime stripborne navigation systems with NAVSTAR was quantified and the use of NAVSTAR for measurements of ocean currents in the broad ocean areas of the world was evaluated.

  4. 78 FR 20684 - Towing Safety Advisory Committee; Vacancies

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-05

    ... SECURITY Coast Guard Towing Safety Advisory Committee; Vacancies AGENCY: United States Coast Guard. ACTION... Safety Advisory Committee (TSAC). TSAC advises the Coast Guard on matters relating to shallow- draft inland and coastal waterway navigation and towing safety. DATES: Applications for TSAC membership...

  5. 78 FR 60890 - Towing Safety Advisory Committee; Vacancies

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-02

    ... SECURITY Coast Guard Towing Safety Advisory Committee; Vacancies AGENCY: Coast Guard. ACTION: Request for applications. SUMMARY: The Coast Guard seeks applications for membership on the Towing Safety Advisory... relating ] to shallow-draft inland and coastal waterway navigation and towing safety. Applicants...

  6. Celestial Navigation

    ERIC Educational Resources Information Center

    Rosenkrantz, Kurt

    2005-01-01

    In the unit described in this article, students discover the main principles of navigation, build tools to observe celestial bodies, and apply their new skills to finding their position on Earth. Along the way students see how science, mathematics, technology, and history are intertwined.

  7. Viking navigation

    NASA Technical Reports Server (NTRS)

    Oneil, W. J.; Rudd, R. P.; Farless, D. L.; Hildebrand, C. E.; Mitchell, R. T.; Rourke, K. H.; Euler, E. A.

    1979-01-01

    A comprehensive description of the navigation of the Viking spacecraft throughout their flight from Earth launch to Mars landing is given. The flight path design, actual inflight control, and postflight reconstruction are discussed in detail. The preflight analyses upon which the operational strategies and performance predictions were based are discussed. The inflight results are then discussed and compared with the preflight predictions and, finally, the results of any postflight analyses are presented.

  8. New bionic navigation algorithm based on the visual navigation mechanism of bees

    NASA Astrophysics Data System (ADS)

    Huang, Yufeng; Liu, Yi; Liu, Jianguo

    2015-04-01

    Through some research on visual navigation mechanisms of flying insects especially honeybees, a novel navigation algorithm integrating entropy flow with Kalman filter has been introduced in this paper. Concepts of entropy image and entropy flow are also introduced, which can characterize topographic features and measure changes of the image respectively. To characterize texture feature and spatial distribution of an image, a new concept of contrast entropy image has been presented in this paper. Applying the contrast entropy image to the navigation algorithm to test its' performance of navigation and comparing with simulation results of intensity entropy image, a conclusion that contrast entropy image performs better and more robust in navigation has been made.

  9. 75 FR 7615 - Towing Safety Advisory Committee; Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-22

    ...The Towing Safety Advisory Committee and its working group on the Revision of Navigation and Vessel Inspection Circular 04-01 will meet in New Orleans, LA. The Committee will also discuss various issues relating to shallow-draft inland and coastal waterway navigation and towing safety. All meetings will be open to the...

  10. INL Autonomous Navigation System

    2005-03-30

    The INL Autonomous Navigation System provides instructions for autonomously navigating a robot. The system permits high-speed autonomous navigation including obstacle avoidance, waypoing navigation and path planning in both indoor and outdoor environments.

  11. Autonomous navigation using lunar beacons

    NASA Technical Reports Server (NTRS)

    Khatib, A. R.; Ellis, J.; French, J.; Null, G.; Yunck, T.; Wu, S.

    1983-01-01

    The concept of using lunar beacon signal transmission for on-board navigation for earth satellites and near-earth spacecraft is described. The system would require powerful transmitters on the earth-side of the moon's surface and black box receivers with antennae and microprocessors placed on board spacecraft for autonomous navigation. Spacecraft navigation requires three position and three velocity elements to establish location coordinates. Two beacons could be soft-landed on the lunar surface at the limits of allowable separation and each would transmit a wide-beam signal with cones reaching GEO heights and be strong enough to be received by small antennae in near-earth orbit. The black box processor would perform on-board computation with one-way Doppler/range data and dynamical models. Alternatively, GEO satellites such as the GPS or TDRSS spacecraft can be used with interferometric techniques to provide decimeter-level accuracy for aircraft navigation.

  12. Senior Adult Consumer Advisory Manual,

    ERIC Educational Resources Information Center

    Ater, E. Carolyn, Ed.

    This manual is intended for use by senior adult peer advisors (age 60 and over) engaged in helping relationships in providing consumer education to other senior adults. The advisory procedures are based on a problem solving approach which incorporates the development of a self-help concept. Chapter 1 provides information on consumer advising. It…

  13. Navigation - Project CAPE Teaching Module.

    ERIC Educational Resources Information Center

    Caldwell, Nadine; May, Charlaron

    Ten lessons are included in this interdisciplinary unit on navigation, designed to supplement fifth and sixth grade social studies and science curricula. Each lesson includes: (1) lesson concepts; (2) competency goals; (3) objectives; (4) materials; (5) list of key vocabulary words; (6) background information; (7) teacher preparation; (8) list of…

  14. Advisory Committees.

    ERIC Educational Resources Information Center

    ERIC Clearinghouse on Educational Management, Eugene, OR.

    This chapter of "The Best of the Best of ERIC," Volume 2, contains 14 summaries of documents and journal articles on citizen advisory committees, all of which are indexed in either "Resources in Education" or "Current Index to Journals in Education." The materials included deal with various aspects of this topic, such as the role of the school…

  15. Autonomous Navigation Using Celestial Objects

    NASA Technical Reports Server (NTRS)

    Folta, David; Gramling, Cheryl; Leung, Dominic; Belur, Sheela; Long, Anne

    1999-01-01

    In the twenty-first century, National Aeronautics and Space Administration (NASA) Enterprises envision frequent low-cost missions to explore the solar system, observe the universe, and study our planet. Satellite autonomy is a key technology required to reduce satellite operating costs. The Guidance, Navigation, and Control Center (GNCC) at the Goddard Space Flight Center (GSFC) currently sponsors several initiatives associated with the development of advanced spacecraft systems to provide autonomous navigation and control. Autonomous navigation has the potential both to increase spacecraft navigation system performance and to reduce total mission cost. By eliminating the need for routine ground-based orbit determination and special tracking services, autonomous navigation can streamline spacecraft ground systems. Autonomous navigation products can be included in the science telemetry and forwarded directly to the scientific investigators. In addition, autonomous navigation products are available onboard to enable other autonomous capabilities, such as attitude control, maneuver planning and orbit control, and communications signal acquisition. Autonomous navigation is required to support advanced mission concepts such as satellite formation flying. GNCC has successfully developed high-accuracy autonomous navigation systems for near-Earth spacecraft using NASA's space and ground communications systems and the Global Positioning System (GPS). Recently, GNCC has expanded its autonomous navigation initiative to include satellite orbits that are beyond the regime in which use of GPS is possible. Currently, GNCC is assessing the feasibility of using standard spacecraft attitude sensors and communication components to provide autonomous navigation for missions including: libration point, gravity assist, high-Earth, and interplanetary orbits. The concept being evaluated uses a combination of star, Sun, and Earth sensor measurements along with forward-link Doppler

  16. PNP: mining of profile navigational patterns

    NASA Astrophysics Data System (ADS)

    Li, Hua-Fu; Shan, Man-Kwan

    2002-03-01

    Web usage mining is a key knowledge discovery research and as such has been well researched. So far, this research has focused mainly on databases containing access log data only. However, many real-world databases contain users profile data and current solutions for this situation are still insufficient. In this paper we have a large database containing of user profile information together with user web-pages navigation patterns. The user profile data includes quantitative attributes, such as salary or age, and categorical attributes, such as sex or marital status. We introduce the concept of profile navigation patterns, which discusses the problem of relating user profile information to navigational behavior. An example of such profile navigation pattern might be 20% of married people between age 25 and 30 have the similar navigational behavior <(a,c)(c,h)(h,i)(i,h)(h,l)>, where a, c, h, i, l are web pages in a web site. The navigation patterns may contain the generic traversal behavior, e.g. trend to backward moves, cycles etc. The objective of mining profile navigation patterns is to identify browser profile for web personalization. We give an algorithm for mining such profile navigation patterns. Our method (algorithm PNP) can discover profile navigation patterns efficiently. We also present new inclination measurements to identify the interesting profile navigational patterns. Experimental results show the efficiency and scalability of PNP.

  17. Space optical navigation techniques: an overview

    NASA Astrophysics Data System (ADS)

    Rebordão, J. M.

    2013-11-01

    Optical or vision-based navigation is an enabling technology for satellite autonomous navigation associated to different navigation approaches such as cruising, fly-by, terrain relative navigation, landing, rendezvous and docking between spacecrafts, rigidity of multi-satellite constellations. Since 2001, in many different ESA projects, the author and his team (at INETI and currently at FCUL) have been associated to most of the developments of the optical components of autonomous navigation, in cooperation with space primes or GNC subsystems suppliers. A unique experience related to seemingly simple photonic concepts associated to computational vision, photonic noises, camera tradeoffs and system concepts has emerged, and deserves a synthesis especially because some of these concepts are being implemented in the ESA Proba 3 mission and ESA is currently updating the technology in view of forthcoming planetary missions to Jupiter, Jupiter moons and asteroids. It is important to note that the US have already flown several missions relying on autonomous navigation and that NASA experience is at least one decade old. System approaches, sources of difficulty, some tradeoffs in both (and between) hardware and software, critical interface issues between the imaging and GNC (Guidance, Navigation and Control) subsystems, image processing techniques, utilization of apriori or to be estimated information, uncertainties, simulation of the imaging chain and non-cooperative environments will be addressed synthetically for both passive (optical) and active (lidar) systems.

  18. Celestial Navigation with the Stereographic Projection

    ERIC Educational Resources Information Center

    Hutton, D. R.

    1977-01-01

    Presented is an exercise in the ability to navigate by the stars. It applies difficult concepts of positional astronomy concerning coordinate systems and time. Stereographic projection is utilized because it allows rapid completion of calculations and measurements and keeps the concepts clear to the students. (MA)

  19. Stereotaxy, navigation and the temporal concatenation.

    PubMed

    Apuzzo, M L; Chen, J C

    1999-01-01

    Nautical and cerebral navigation share similar elements of functional need and similar developmental pathways. The need for orientation necessitates the development of appropriate concepts, and such concepts are dependent on technology for practical realization. Occasionally, a concept precedes technology in time and requires periods of delay for appropriate development. A temporal concatenation exists where time allows the additive as need, concept and technology ultimately provide an endpoint of elegant solution. Nautical navigation has proceeded through periods of dead reckoning and celestial navigation to satellite orientation with associated refinements of instrumentation and charts for guidance. Cerebral navigation has progressed from craniometric orientation and burr hole mounted guidance systems to simple rectolinear and arc-centered devices based on radiographs to guidance by complex anatomical and functional maps provided as an amalgam of modern imaging modes. These maps are now augmented by complex frame and frameless systems which allow not only precise orientation, but also point and volumetric action. These complex technical modalities required and developed in part from elements of maritime navigation that have been translated to cerebral navigation in a temporal concatenation. PMID:10853057

  20. Microcomputers and astronomical navigation.

    NASA Astrophysics Data System (ADS)

    Robin-Jouan, Y.

    1996-04-01

    Experienced navigators remember ancient astronomical navigation and its limitations. Using microcomputers in small packages and selecting up-to-date efficient methods will overcome many of these limitations. Both features lead to focus on observations, and encourage an increase in their numbers. With no intention of competing with satellite navigation, sextant navigation in the open sea can then be accessed again by anybody. It can be considered for demonstrative use or as a complement to the GPS.

  1. Navigating the Internet.

    PubMed Central

    Powsner, S M; Roderer, N K

    1994-01-01

    Navigating any complex set of information resources requires tools for both browsing and searching. A number of tools are available today for using Internet resources, and more are being developed. This article reviews existing navigational tools, including two developed at the Yale University School of Medicine, and points out their strengths and weaknesses. A major shortcoming of the present Internet navigation methods is the lack of controlled descriptions of the available resources. As a result, navigating the Internet is very difficult. PMID:7841913

  2. Evolution of patient navigation.

    PubMed

    Shockney, Lillie D

    2010-08-01

    The role of nurses in patient navigation has evolved over more than four decades. Navigators in cancer care can guide patients through the physical, emotional, and financial challenges that come with a diagnosis of cancer and facilitate communication among healthcare providers. Navigation has the potential to improve patient outcomes and system efficiency. Oncology nurses are well suited to help patients with cancer navigate the healthcare system from diagnosis and treatment through survivorship and palliative care. PMID:20682496

  3. Air Navigation. Flying Training. AFM 51-40. NAVAIR 00-80V-49.

    ERIC Educational Resources Information Center

    Air Training Command, Randolph AFB, TX.

    This manual provides information on all phases of air navigation for navigators and student navigators in training. It develops the art of navigation from the simplest concepts to the most advanced procedures and techniques. The text contains explanations on how to measure, map, and chart the earth; how to use basic instruments to obtain…

  4. Navigation in medical Internet image databases.

    PubMed

    Frankewitsch, T; Prokosch, U

    2001-01-01

    The world wide web (WWW) changes common ideas of database access. Hypertext Markup Language allows the simultaneous presentation of information from different sources such as static pages, results of queries from) databases or dynamically generated pages. 'Therefore, the metaphor of the WWW itself as a database was proposed by Mendelzon and Nlilo in 1998. Against this background the techniques of navigation within WWW-databases and the semantic types of their queries has e been analysed. Forty eight image repositories of different types and content, but all concerning medical essence, have been found by search-engines. Many different techniques are offered to enable navigation ranging from simple HTML-link-lists to complex applets. The applets in particular promise an improvement for navigation. Within the meta-information for querying, only ACR- and UMLS-encoding were found, but not standardized vocabularies like ICD10 or Terminologia Anatomica. UMLS especially shows that a well defined thesaurus can improve navigation. However, of the analysed databases only the UMLS 'metathesaurus' is currently implemented without providing additional navigation support based on the UMLS 'semantic network'. Including the information about relationships between the concepts of the metathesaurus or using the UMLS semantic network could provide a much easier navigation within a network of concepts pointing to multimedia files stored somewhere in the WWW. PMID:11583404

  5. 78 FR 67362 - Federal Advisory Committee Act; Technological Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-12

    ... COMMISSION Federal Advisory Committee Act; Technological Advisory Council AGENCY: Federal Communications..., this notice advises interested persons that the Federal Communications Commission's (FCC) Technological...-418-0807; Walter.Johnston@FCC.gov . SUPPLEMENTARY INFORMATION: The FCC Technological Advisory...

  6. 78 FR 55255 - Federal Advisory Committee Act; Technological Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-10

    ... COMMISSION Federal Advisory Committee Act; Technological Advisory Council AGENCY: Federal Communications..., this notice advises interested persons that the Federal Communications Commission's (FCC) Technological....Johnston@FCC.gov . SUPPLEMENTARY INFORMATION: The FCC Technological Advisory Council will discuss...

  7. 77 FR 30289 - Federal Advisory Committee Act; Technological Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-22

    ... COMMISSION Federal Advisory Committee Act; Technological Advisory Council AGENCY: Federal Communications..., this notice advises interested persons that the Federal Communications Commission's (FCC) Technological...-418-0807; Walter.Johnston@FCC.gov . SUPPLEMENTARY INFORMATION: The FCC Technological Advisory...

  8. 75 FR 67090 - Federal Advisory Committee Act; Technological Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-01

    ... COMMISSION Federal Advisory Committee Act; Technological Advisory Council AGENCY: Federal Communications..., this notice advises interested persons that the Federal Communications Commission's (FCC) Technological... objectives of the Technological Advisory Council (TAC) will be described and discussion on the...

  9. Mars rover local navigation and hazard avoidance

    NASA Technical Reports Server (NTRS)

    Wilcox, B. H.; Gennery, D. B.; Mishkin, A. H.

    1989-01-01

    A Mars rover sample return mission has been proposed for the late 1990's. Due to the long speed-of-light delays between earth and Mars, some autonomy on the rover is highly desirable. JPL has been conducting research in two possible modes of rover operation, Computer-Aided Remote Driving and Semiautonomous Navigation. A recently-completed research program used a half-scale testbed vehicle to explore several of the concepts in semiautonomous navigation. A new, full-scale vehicle with all computational and power resources on-board will be used in the coming year to demonstrate relatively fast semiautonomous navigation. The computational and power requirements for Mars rover local navigation and hazard avoidance are discussed.

  10. Mars Rover Local Navigation And Hazard Avoidance

    NASA Astrophysics Data System (ADS)

    Wilcox, B. H.; Gennery, D. B.; Mishkin, A. H.

    1989-03-01

    A Mars rover sample return mission has been proposed for the late 1990's. Due to the long speed-of-light delays between Earth and Mars, some autonomy on the rover is highly desirable. JPL has been conducting research in two possible modes of rover operation, Computer-Aided Remote Driving and Semiautonomous Navigation. A recently-completed research program used a half-scale testbed vehicle to explore several of the concepts in semiautonomous navigation. A new, full-scale vehicle with all computational and power resources on-board will be used in the coming year to demonstrate relatively fast semiautonomous navigation. The computational and power requirements for Mars rover local navigation and hazard avoidance are discussed.

  11. Analysis of Ares 1 Ascent Navigation Options

    NASA Technical Reports Server (NTRS)

    Norris, Lee; Tao, Yee-Chee; Hall, Robert; Chuang, Jason; Whorton, Mark

    2008-01-01

    The paper documents a collaborative analysis of ascent Navigation options for the Ares 1 launch vehicle by the NASA Marshall Space Flight Center (MSFC) and the C. S. Draper Laboratory. The objective of the work was the development of a Navigation concept and supporting requirements which meet the Ares 1 accuracy specification in a manner which is straightforward, reliable, and cost effective. Six primary Navigation architectures were considered. In each case analysis was performed to determine under what conditions the required accuracy at second stage cutoff could be achieved. Those architectures which met the accuracy requirements were then assessed in terms of cost, complexity, and reliability to determine a baseline Navigation approach and the primary supporting requirements.

  12. Private Graphs - Access Rights on Graphs for Seamless Navigation

    NASA Astrophysics Data System (ADS)

    Dorner, W.; Hau, F.; Pagany, R.

    2016-06-01

    After the success of GNSS (Global Navigational Satellite Systems) and navigation services for public streets, indoor seems to be the next big development in navigational services, relying on RTLS - Real Time Locating Services (e.g. WIFI) and allowing seamless navigation. In contrast to navigation and routing services on public streets, seamless navigation will cause an additional challenge: how to make routing data accessible to defined users or restrict access rights for defined areas or only to parts of the graph to a defined user group? The paper will present case studies and data from literature, where seamless and especially indoor navigation solutions are presented (hospitals, industrial complexes, building sites), but the problem of restricted access rights was only touched from a real world, but not a technical perspective. The analysis of case studies will show, that the objective of navigation and the different target groups for navigation solutions will demand well defined access rights and require solutions, how to make only parts of a graph to a user or application available to solve a navigational task. The paper will therefore introduce the concept of private graphs, which is defined as a graph for navigational purposes covering the street, road or floor network of an area behind a public street and suggest different approaches how to make graph data for navigational purposes available considering access rights and data protection, privacy and security issues as well.

  13. Cameras Improve Navigation for Pilots, Drivers

    NASA Technical Reports Server (NTRS)

    2012-01-01

    Advanced Scientific Concepts Inc. (ASC), of Santa Barbara, California, received SBIR awards and other funding from the Jet Propulsion Laboratory, Johnson Space Center, and Langley Research Center to develop and refine its 3D flash LIDAR technologies for space applications. Today, ASC's NASA-derived technology is sold to assist with collision avoidance, navigation, and object tracking.

  14. Navigator program risk management

    NASA Technical Reports Server (NTRS)

    Wessen, Randii R.; Padilla, Deborah A.

    2004-01-01

    In this paper, program risk management as applied to the Navigator Program: In Search of New Worlds will be discussed. The Navigator Program's goals are to learn how planetary systems form and to search for those worlds that could or do harbor life.

  15. Maps and navigation methods

    NASA Technical Reports Server (NTRS)

    Duval, A

    1922-01-01

    Different maps and scales are discussed with particular emphasis on their use in aviation. The author makes the observation that current navigation methods are slow and dangerous and should be replaced by scientific methods of navigation based on loxodromy and the use of the compass.

  16. Oncology nurse navigator.

    PubMed

    Case, Mary Ann B

    2011-02-01

    The purpose of this integrative review is to explore the presence of the oncology nurse as navigator on measurable patient outcomes. Eighteen primary nursing research studies were found using combinations of the following key words: advocate, cancer, case manager, coach, certification, guide, navigator, nurse, oncology, patient navigator, pivot nurse, and continuity of care. Nurse researchers identified nursing-sensitive patient outcomes related to the time to diagnosis and appropriate treatment, effect on mood states, satisfaction, support, continuity of care, and cost outcomes. Navigator roles are expanding globally, and nurses should continue to embrace opportunities to ensure the safe passage of patients with cancer along the entire trajectory of illness and to evaluate the implications for educational preparation, research, and practice of navigators of all kinds. PMID:21278039

  17. Framework Based Guidance Navigation and Control Flight Software Development

    NASA Technical Reports Server (NTRS)

    McComas, David

    2007-01-01

    This viewgraph presentation describes NASA's guidance navigation and control flight software development background. The contents include: 1) NASA/Goddard Guidance Navigation and Control (GN&C) Flight Software (FSW) Development Background; 2) GN&C FSW Development Improvement Concepts; and 3) GN&C FSW Application Framework.

  18. Development of visual-display aid to air navigation

    NASA Technical Reports Server (NTRS)

    Matcovich, T. J.

    1973-01-01

    The developments are discussed in the design of a liquid-crystal, visual display, air navigation aid, which uses two VOR signals to locate the aircraft. The system concepts, liquid crystal materials, stability tests, and the electronic system are described. It is concluded that a navigational aid of this type is technically feasible, but not at the projected low cost.

  19. Patient navigation through the cancer care continuum: an overview.

    PubMed

    Hopkins, Janice; Mumber, Matthew P

    2009-07-01

    Technologic advances, medical specialization, novel payment structures, and an increased scientific knowledge base have resulted in a health care system requiring trained experts to deliver guidance as patients complete care plans: Enter the concept of patient navigation. PMID:20856626

  20. Algorithm for navigated ESS.

    PubMed

    Baudoin, T; Grgić, M V; Zadravec, D; Geber, G; Tomljenović, D; Kalogjera, L

    2013-12-01

    ENT navigation has given new opportunities in performing Endoscopic Sinus Surgery (ESS) and improving surgical outcome of the patients` treatment. ESS assisted by a navigation system could be called Navigated Endoscopic Sinus Surgery (NESS). As it is generally accepted that the NESS should be performed only in cases of complex anatomy and pathology, it has not yet been established as a state-of-the-art procedure and thus not used on a daily basis. This paper presents an algorithm for use of a navigation system for basic ESS in the treatment of chronic rhinosinusitis (CRS). The algorithm includes five units that should be highlighted using a navigation system. They are as follows: 1) nasal vestibule unit, 2) OMC unit, 3) anterior ethmoid unit, 4) posterior ethmoid unit, and 5) sphenoid unit. Each unit has a shape of a triangular pyramid and consists of at least four reference points or landmarks. As many landmarks as possible should be marked when determining one of the five units. Navigated orientation in each unit should always precede any surgical intervention. The algorithm should improve the learning curve of trainees and enable surgeons to use the navigation system routinely and systematically. PMID:24260766

  1. Navigation lights color study

    NASA Astrophysics Data System (ADS)

    Barbosa, Jose G.; Alberg, Matthew T.

    2015-05-01

    The chromaticity of navigation lights are defined by areas on the International Commission on Illumination (CIE) 1931 chromaticity diagram. The corner coordinates for these areas are specified in the International Regulations for Prevention of Collisions at Sea, 1972 (72 COLREGS). The navigation light's color of white, red, green, and yellow are bounded by these areas. The chromaticity values specified by the COLREGS for navigation lights were intended for the human visual system (HVS). The HVS can determine the colors of these lights easily under various conditions. For digital color camera imaging systems the colors of these lights are dependent on the camera's color spectral sensitivity, settings, and color correction. At night the color of these lights are used to quickly determine the relative course of vessels. If these lights are incorrectly identified or there is a delay in identifying them this could be a potential safety of ship concern. Vessels that use camera imaging systems exclusively for sight, at night, need to detect, identify, and discriminate navigation lights for navigation and collision avoidance. The introduction of light emitting diode (LED) lights and lights with different spectral signatures have the potential to be imaged very differently with an RGB color filter array (CFA) color camera than with the human eye. It has been found that some green navigation lights' images appear blue verse green. This has an impact on vessels that use camera imaging systems exclusively for navigation. This paper will characterize color cameras ability to properly reproducing navigation lights' color and survey a set of navigation light to determine if they conform to the COLREGS.

  2. 75 FR 49508 - Navigation Safety Advisory Council; Vacancies

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-13

    ... consecutive three year terms. All members serve at their own expense and receive no salary but will receive... and maritime law or who teach admiralty and maritime law. Group Four Members. Group Four consists...

  3. 75 FR 51473 - Houston/Galveston Navigation Safety Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-20

    ... Commander Michael Zidik, Alternate Designated Federal Officer (ADFO) of HOGANSAC, CG SEC Houston-Galveston... meeting, please call or e-mail Lieutenant Junior Grade Margaret Brown, Waterways Management Branch, Coast Guard; telephone 713-678-9001, e- mail Margaret.A.Brown@uscg.mil . If you have questions on viewing...

  4. Navigation Systems for Ablation

    PubMed Central

    Wood, B. J.; Kruecker, J.; Abi-Jaoudeh, N; Locklin, J.; Levy, E.; Xu, S.; Solbiati, L.; Kapoor, A.; Amalou, H.; Venkatesan, A.

    2010-01-01

    Navigation systems, devices and intra-procedural software are changing the way we practice interventional oncology. Prior to the development of precision navigation tools integrated with imaging systems, thermal ablation of hard-to-image lesions was highly dependent upon operator experience, spatial skills, and estimation of positron emission tomography-avid or arterial-phase targets. Numerous navigation systems for ablation bring the opportunity for standardization and accuracy that extends our ability to use imaging feedback during procedures. Existing systems and techniques are reviewed, and specific clinical applications for ablation are discussed to better define how these novel technologies address specific clinical needs, and fit into clinical practice. PMID:20656236

  5. Expected Navigation Flight Performance for the Magnetospheric Multiscale (MMS) Mission

    NASA Technical Reports Server (NTRS)

    Olson, Corwin; Wright, Cinnamon; Long, Anne

    2012-01-01

    The Magnetospheric Multiscale (MMS) mission consists of four formation-flying spacecraft placed in highly eccentric elliptical orbits about the Earth. The primary scientific mission objective is to study magnetic reconnection within the Earth s magnetosphere. The baseline navigation concept is the independent estimation of each spacecraft state using GPS pseudorange measurements (referenced to an onboard Ultra Stable Oscillator) and accelerometer measurements during maneuvers. State estimation for the MMS spacecraft is performed onboard each vehicle using the Goddard Enhanced Onboard Navigation System, which is embedded in the Navigator GPS receiver. This paper describes the latest efforts to characterize expected navigation flight performance using upgraded simulation models derived from recent analyses.

  6. NASA study of an automated Pilot Advisory System

    NASA Technical Reports Server (NTRS)

    Parker, L. C.

    1976-01-01

    A Pilot Advisory System (PAS) concept for high-density uncontrolled airports is discussed where the general aviation pilots will be provided with automatic audio voice airport and air traffic advisories within two minute intervals and with mid-air collision warnings whenever such situations arise. Free of manual inputs, the PAS includes the options of fixed-base operator runway select, automatic restart and self-test, and remote inquiry of system status and messages.

  7. Spatial cognition and navigation

    NASA Technical Reports Server (NTRS)

    Aretz, Anthony J.

    1989-01-01

    An experiment that provides data for the development of a cognitive model of pilot flight navigation is described. The experiment characterizes navigational awareness as the mental alignment of two frames of reference: (1) the ego centered reference frame that is established by the forward view out of the cockpit and (2) the world centered reference frame that is established by the aircraft's location on a map. The data support a model involving at least two components: (1) the perceptual encoding of the navigational landmarks and (2) the mental rotation of the map's world reference frame into alignment with the ego centered reference frame. The quantitative relationships of these two factors are provided as possible inputs for a computational model of spatial cognition during flight navigation.

  8. 77 FR 38065 - The President's Management Advisory Board (PMAB); Notification of Upcoming Public Advisory Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-26

    ... ADMINISTRATION The President's Management Advisory Board (PMAB); Notification of Upcoming Public Advisory Meeting.... SUMMARY: The President's Management Advisory Board (PMAB), a Federal Advisory Committee established in..., President's Management Advisory Board, Office of Executive Councils, General Services Administration, 1776...

  9. 76 FR 65511 - The President's Management Advisory Board (PMAB); Notification of Upcoming Public Advisory Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-21

    ... ADMINISTRATION The President's Management Advisory Board (PMAB); Notification of Upcoming Public Advisory Meeting.... SUMMARY: The President's Management Advisory Board (PMAB), a Federal Advisory Committee established in... Officer, President's Management Advisory Board, Office of Executive Councils, General...

  10. Inertial/multisensor navigation

    NASA Technical Reports Server (NTRS)

    Alikiotis, Dimitri

    1987-01-01

    A Multisensor Navigation System as proposed by the Ohio University Avionics Engineering Center is illustrated. The proposed system incorporates radio (Lorac-C), satellite (Global Positioning System) and an inertial navigation system (INS). The inertial part of the system will be of a low grade since the INS will be used primarily for filtering the GPS data and for short term stability. Loran-C and GPS will be used for long term stability.

  11. Stellar Inertial Navigation Workstation

    NASA Technical Reports Server (NTRS)

    Johnson, W.; Johnson, B.; Swaminathan, N.

    1989-01-01

    Software and hardware assembled to support specific engineering activities. Stellar Inertial Navigation Workstation (SINW) is integrated computer workstation providing systems and engineering support functions for Space Shuttle guidance and navigation-system logistics, repair, and procurement activities. Consists of personal-computer hardware, packaged software, and custom software integrated together into user-friendly, menu-driven system. Designed to operate on IBM PC XT. Applied in business and industry to develop similar workstations.

  12. Onboard Navigation Systems Characteristics

    NASA Technical Reports Server (NTRS)

    1979-01-01

    The space shuttle onboard navigation systems characteristics are described. A standard source of equations and numerical data for use in error analyses and mission simulations related to space shuttle development is reported. The sensor characteristics described are used for shuttle onboard navigation performance assessment. The use of complete models in the studies depend on the analyses to be performed, the capabilities of the computer programs, and the availability of computer resources.

  13. 33 CFR 165.753 - Regulated navigation area; Tampa Bay, Florida.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... with 47 CFR 80.331 on VHF-FM channel 13 at the following broadcast/reporting points: (1) Prior to... nature of any hazardous conditions as defined by 33 CFR 160.203. (d) Nothing in this section shall... information: (1) The words “Hello all vessels, a Navigational Advisory follows”; (2) Name of vessel; (3)...

  14. Citizens Advisory Committees.

    ERIC Educational Resources Information Center

    Stemnock, Suzanne K.

    1968-01-01

    This document contains the results of a national survey designed to determine the composition and location of permanent citizens advisory committees operating within the nation's school districts. The 52 district-wide, continuing citizens advisory bodies identified by 290 responding school systems are listed alphabetically by State. The following…

  15. Advisory Committee Handbook.

    ERIC Educational Resources Information Center

    Black Hawk Coll., Moline, IL.

    An advisory committee is generally comprised of persons outside the education profession who have specialized knowledge in a given area. The committee advises, makes recommendations, and gives service to the college and its students, instructors, and administrators. At Black Hawk College, there are four types of advisory committees: community,…

  16. Odometry and insect navigation.

    PubMed

    Wolf, Harald

    2011-05-15

    Animals have needed to find their way about almost since a free-living life style evolved. Particularly, if an animal has a home--shelter or nesting site--true navigation becomes necessary to shuttle between this home and areas of other activities, such as feeding. As old as navigation is in the animal kingdom, as diverse are its mechanisms and implementations, depending on an organism's ecology and its endowment with sensors and actuators. The use of landmarks for piloting or the use of trail pheromones for route following have been examined in great detail and in a variety of animal species. The same is true for senses of direction--the compasses for navigation--and the construction of vectors for navigation from compass and distance cues. The measurement of distance itself--odometry--has received much less attention. The present review addresses some recent progress in the understanding of odometers in invertebrates, after outlining general principles of navigation to put odometry in its proper context. Finally, a number of refinements that increase navigation accuracy and safety are addressed. PMID:21525309

  17. Integrated INS/GPS Navigation from a Popular Perspective

    NASA Technical Reports Server (NTRS)

    Omerbashich, Mensur

    2002-01-01

    Inertial navigation, blended with other navigation aids, Global Positioning System (GPS) in particular, has gained significance due to enhanced navigation and inertial reference performance and dissimilarity for fault tolerance and anti-jamming. Relatively new concepts based upon using Differential GPS (DGPS) blended with Inertial (and visual) Navigation Sensors (INS) offer the possibility of low cost, autonomous aircraft landing. The FAA has decided to implement the system in a sophisticated form as a new standard navigation tool during this decade. There have been a number of new inertial sensor concepts in the recent past that emphasize increased accuracy of INS/GPS versus INS and reliability of navigation, as well as lower size and weight, and higher power, fault tolerance, and long life. The principles of GPS are not discussed; rather the attention is directed towards general concepts and comparative advantages. A short introduction to the problems faced in kinematics is presented. The intention is to relate the basic principles of kinematics to probably the most used navigation method in the future-INS/GPS. An example of the airborne INS is presented, with emphasis on how it works. The discussion of the error types and sources in navigation, and of the role of filters in optimal estimation of the errors then follows. The main question this paper is trying to answer is 'What are the benefits of the integration of INS and GPS and how is this, navigation concept of the future achieved in reality?' The main goal is to communicate the idea about what stands behind a modern navigation method.

  18. 33 CFR 209.325 - Navigation lights, aids to navigation, navigation charts, and related data policy, practices and...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Navigation lights, aids to navigation, navigation charts, and related data policy, practices and procedure. 209.325 Section 209.325 Navigation and Navigable Waters CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY, DEPARTMENT OF DEFENSE ADMINISTRATIVE PROCEDURE § 209.325 Navigation...

  19. Individualised Navigation Services in Learning Networks

    NASA Astrophysics Data System (ADS)

    Hummel, Hans; van den Berg, Bert; Berlanga, Adriana; Drachsler, Hendrik; Janssen, José; Nadolski, Rob; Koper, Rob

    In this chapter we propose hybrid recommendation techniques for Personalised Recommendation Services (PRS) as a novel approach to set up individualised navigation in Learning Networks. Such an approach combines the collaborative filtering of information about others’ behaviour with matching information connected to individual learners and activities. Such an hybrid approach or recommendation strategy has hardly been used in education but appears powerful to address some of the practical problems that practitioners will face when using either technique alone. Some common problems, like the cold-start problem for collaborative filtering and the problem of maintaining metadata information for learners and learning activities, will be described. This chapter will also serve as an introduction to the remaining three chapters of this navigation section and introduce the main concepts involved in providing (individualised) navigation services.

  20. 76 FR 8715 - Technology Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-15

    ... COMMISSION Technology Advisory Committee AGENCY: Commodity Futures Trading Commission (``CFTC''). ACTION: Notice of meeting of Technology Advisory Committee. SUMMARY: The Technology Advisory Committee will hold...: Office of the Secretary. Please use the title ``Technology Advisory Committee'' in any written...

  1. 76 FR 75874 - Technology Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-05

    ... COMMISSION Technology Advisory Committee AGENCY: Commodity Futures Trading Commission (``CFTC''). ACTION: Notice of Meeting of Technology Advisory Committee. SUMMARY: The Technology Advisory Committee will hold..., attention: Office of the Secretary. Please use the title ``Technology Advisory Committee'' in any...

  2. Coordinating sensing and local navigation

    NASA Astrophysics Data System (ADS)

    Slack, Marc G.

    1991-07-01

    Based on Navigation Templates (or NaTs), this work presents a new paradigm for local navigation which addresses the noisy and uncertain nature of sensor data. Rather than creating a new navigation plan each time the robot's perception of the world changes, the technique incorporates perceptual changes directly into the existing navigation plan. In this way, the robot's navigation plan is quickly and continuously modified, resulting in actions that remain coordinated with its changing perception of the world.

  3. Voyager navigation strategy and accuracy

    NASA Technical Reports Server (NTRS)

    Jones, J. B.; Mcdanell, J. P.; Bantell, M. H., Jr.; Chadwick, C.; Jacobson, R. A.; Miller, L. J.; Synnott, S. P.; Van Allen, R. E.

    1977-01-01

    The paper presents the results of the prelaunch navigation studies conducted for the Mariner spacecraft launched toward encounters with the giant planets. The navigation system and the strategy for using this system are described. The requirements on the navigation system demanded by the goals of the project are mentioned, and the predicted navigational capability relative to each of the requirements is discussed. Baseline navigation results for three possible trajectories are analyzed.

  4. Coordinating sensing and local navigation

    NASA Technical Reports Server (NTRS)

    Slack, Marc G.

    1991-01-01

    Based on Navigation Templates (or NaTs), this work presents a new paradigm for local navigation which addresses the noisy and uncertain nature of sensor data. Rather than creating a new navigation plan each time the robot's perception of the world changes, the technique incorporates perceptual changes directly into the existing navigation plan. In this way, the robot's navigation plan is quickly and continuously modified, resulting in actions that remain coordinated with its changing perception of the world.

  5. Generating Navigation Models from Existing Building Data

    NASA Astrophysics Data System (ADS)

    Liu, L.; Zlatanova, S.

    2013-11-01

    Research on indoor navigation models mainly focuses on geometric and logical models .The models are enriched with specific semantic information which supports localisation, navigation and guidance. Geometric models provide information about the structural (physical) distribution of spaces in a building, while logical models indicate relationships (connectivity and adjacency) between the spaces. In many cases geometric models contain virtual subdivisions to identify smaller spaces which are of interest for navigation (e.g. reception area) or make use of different semantics. The geometric models are used as basis to automatically derive logical models. However, there is seldom reported research on how to automatically realize such geometric models from existing building data (as floor plans) or indoor standards (CityGML LOD4 or IFC). In this paper, we present our experiments on automatic creation of logical models from floor plans and CityGML LOD4. For the creation we adopt the Indoor Spatial Navigation Model (INSM) which is specifically designed to support indoor navigation. The semantic concepts in INSM differ from daily used notations of indoor spaces such as rooms and corridors but they facilitate automatic creation of logical models.

  6. Navigation Architecture for a Space Mobile Network

    NASA Technical Reports Server (NTRS)

    Valdez, Jennifer E.; Ashman, Benjamin; Gramling, Cheryl; Heckler, Gregory W.; Carpenter, Russell

    2016-01-01

    The Tracking and Data Relay Satellite System (TDRSS) Augmentation Service for Satellites (TASS) is a proposed beacon service to provide a global, space based GPS augmentation service based on the NASA Global Differential GPS (GDGPS) System. The TASS signal will be tied to the GPS time system and usable as an additional ranging and Doppler radiometric source. Additionally, it will provide data vital to autonomous navigation in the near Earth regime, including space weather information, TDRS ephemerides, Earth Orientation Parameters (EOP), and forward commanding capability. TASS benefits include enhancing situational awareness, enabling increased autonomy, and providing near real-time command access for user platforms. As NASA Headquarters' Space Communication and Navigation Office (SCaN) begins to move away from a centralized network architecture and towards a Space Mobile Network (SMN) that allows for user initiated services, autonomous navigation will be a key part of such a system. This paper explores how a TASS beacon service enables the Space Mobile Networking paradigm, what a typical user platform would require, and provides an in-depth analysis of several navigation scenarios and operations concepts. This paper provides an overview of the TASS beacon and its role within the SMN and user community. Supporting navigation analysis is presented for two user mission scenarios: an Earth observing spacecraft in low earth orbit (LEO), and a highly elliptical spacecraft in a lunar resonance orbit. These diverse flight scenarios indicate the breadth of applicability of the TASS beacon for upcoming users within the current network architecture and in the SMN.

  7. Robot navigation algorithms using learned spatial graphs

    SciTech Connect

    Iyengar, S.S.; Jorgensen, C.C.; Rao, S.V.N.; Weisbin, C.R.

    1985-01-01

    Finding optimal paths for robot navigation in known terrain has been studied for some time but, in many important situations, a robot would be required to navigate in completely new or partially explored terrain. We propose a method of robot navigation which requires no pre-learned model, makes maximal use of available information, records and synthesizes information from multiple journeys, and contains concepts of learning that allow for continuous transition from local to global path optimality. The model of the terrain consists of a spatial graph and a Voronoi diagram. Using acquired sensor data, polygonal boundaries containing perceived obstacles shrink to approximate the actual obstacles' surfaces, free space for transit is correspondingly enlarged, and additional nodes and edges are recorded based on path intersections and stop points. Navigation planning is gradually accelerated with experience since improved global map information minimizes the need for further sensor data acquisition. Our method currently assumes obstacle locations are unchanging, navigation can be successfully conducted using two-dimensional projections, and sensor information is precise.

  8. Aerocapture navigation at Neptune

    NASA Technical Reports Server (NTRS)

    Haw, Robert J.

    2003-01-01

    A proposed Neptune orbiter Aerocapture mission will use solar electric propulsion to send an orbiter to Neptune. Navigation feasibility of direct-entry aerocapture for orbit insertion at Neptune is shown. The navigation strategy baselines optical imaging and (delta)VLBI measurement in order to satisfy the flight system's atmosphere entry flight path angle, which is targeted to enter Neptune with an entry flight path angle of -11.6 . Error bars on the entry flight path angle of plus/minus0.55 (3(sigma)) are proposed. This requirement can be satisfied with a data cutoff 3.2 days prior to arrival. There is some margin in the arrival template to tighten (i.e. reduce) the entry corridor either by scheduling a data cutoff closer to Neptune or alternatively, reducing uncertainties by increasing the fidelity of the optical navigation camera.

  9. Mariner 9 navigation

    NASA Technical Reports Server (NTRS)

    Neil, W. J.; Jordan, J. F.; Zielenbach, J. W.; Wong, S. K.; Mitchell, R. T.; Webb, W. A.; Koskela, P. E.

    1973-01-01

    A final, comprehensive description of the navigation of Mariner 9-the first U.S. spacecraft to orbit another planet is provided. The Mariner 9 navigation function included not only precision flight path control but also pointing of the spacecraft's scientific instruments mounted on a two degree of freedom scan platform. To the extent appropriate, each section describes the perflight analyses on which the operational strategies and performance predictions were based. Inflight results are then discussed and compared with the preflight predictions. Postflight analyses, which were primarily concerned with developing a thorough understanding of unexpected in-flight results, are also presented.

  10. Cassini tour navigation strategy

    NASA Technical Reports Server (NTRS)

    Roth, Duane; Alwar, Vijay; Bordi, John; Goodson, Troy; Hahn, Yungsun; Ionasescu, Rodica; Jones, Jeremy; Owen, William; Pojman, Joan; Roundhill, Ian; Santos, Shawna; Strange, Nathan; Wagner, Sean; Wong, Mau

    2003-01-01

    The Cassini-Huygens spacecraft was launched on October 15, 1997 as a joint NASA/ESA mission to explore Saturn. After a 7 year cruise the spacecraft will enter orbit around Saturn on 1 July 2004 for a 4 year investigation of the Saturnian system. The Cassini Navigation Team is responsible for designing the reference trajectory and conducting operations to realize this design. This paper describes the strategy for achieving project requirements, the characteristics of the Cassini navigation challenge, and the underlying assumptions.

  11. Autonomous RPRV Navigation, Guidance and Control

    NASA Technical Reports Server (NTRS)

    Johnston, Donald E.; Myers, Thomas T.; Zellner, John W.

    1983-01-01

    Dryden Flight Research Center has the responsibility for flight testing of advanced remotely piloted research vehicles (RPRV) to explore highly maneuverable aircraft technology, and to test advanced structural concepts, and related aeronautical technologies which can yield important research results with significant cost benefits. The primary purpose is to provide the preliminary design of an upgraded automatic approach and landing control system and flight director display to improve landing performance and reduce pilot workload. A secondary purpose is to determine the feasibility of an onboard autonomous navigation, orbit, and landing capability for safe vehicle recovery in the event of loss of telemetry uplink communication with the vehicles. The current RPRV approach and landing method, the proposed automatic and manual approach and autoland system, and an autonomous navigation, orbit, and landing system concept which is based on existing operational technology are described.

  12. Oncology nurse navigator role delineation study: an oncology nursing society report.

    PubMed

    Brown, Carlton G; Cantril, Cynthia; McMullen, Lori; Barkley, Dana L; Dietz, Michele; Murphy, Cynthia Miller; Fabrey, Lawrence J

    2012-12-01

    The purpose of the Oncology Nursing Society (ONS) Oncology Nurse Navigator Role Delineation Study was to examine the job-function activities of the oncology nurse navigator, thus providing an understanding of this unique role. The Role Delineation Advisory Committee consisting mainly of oncology nurse navigators was formed to provide content expertise to Applied Measurement Professionals, which conducted the role delineation study. Three hundred and thirty nurses completed the survey. The study clearly defined tasks, knowledge areas, and skills that are very specific to the nurse navigator role; however, the overlap in knowledge with the general oncology nurse role needs to be explored. The ONS Board of Directors and the Oncology Nursing Certification Corporation Board of Directors currently are exploring the need for additional initiatives to help define the role and competencies of the oncology nurse navigator. PMID:23178350

  13. Citizen Advisory Committees

    ERIC Educational Resources Information Center

    Greenwood, Gordon E.; And Others

    1977-01-01

    This article looks at the kinds of activities school advisory committees can and have engaged in, the type of support they need in order to become effective, and some ways of evaluating their effectiveness. (MB)

  14. Rockford's Remarkable Advisory Council

    ERIC Educational Resources Information Center

    Mitchell, Brad

    1977-01-01

    Describes the cooperative relationship between the Rockford, Illinois, advisory council and the Comprehensive Employment and Training Act (CETA) staff for Winnebago and Boone Counties and credits this cooperation and community input with CETA's success. (MF)

  15. Experimental validation of GPS-INS-STAR hybrid navigation system for space autonomy

    NASA Astrophysics Data System (ADS)

    Tanabe, Toru; Harigae, Masatoshi

    The experimental validation of the GPS-INS-STAR hybrid navigation system concept is performed. The hybrid navigation system combines the best features of employed sensors to improve total navigation performances. The GPS-INS-STAR hybrid navigation system consists of the three different sensors, a GPS receiver, an inertial navigation system and a STAR image sensor. In this concept, the system integrates a high positioning performance of the GPS system, an accurate attitude determination capability of the STAR image sensor and the INS signal with a wide bandwidth. It results in a complete 6-DOF (degrees of freedom) autonomous navigation system. The present paper shows the validation of the concept by the experiments using GPS, INS and STAR hardware systems. The experiments are divided into three steps. Firstly, the INS-STAR hybrid navigation system is constructed on the 3-axis motion table to verify the performances of its attitude loop. Secondly, the GPS-INS hybrid navigation system installed on the car shows the performance improvement in its translational loop. Finally, the full configuration of the GPS-INS-STAR hybrid navigation system is evaluated at night. Each experiment result is checked by the theoretical analysis. In the theoretical analysis, the concept of observability well explains the performances of the system. Its feasibility for space application is also evaluated in the point of existing hardware technology. It is concluded that the experiments vaidate the concept of the hybrid navigation system and confirm its capability to realize space autonomy.

  16. Navigating between the Dimensions

    ERIC Educational Resources Information Center

    Fleron, Julian F.; Ecke, Volker

    2011-01-01

    Generations have been inspired by Edwin A. Abbott's profound tour of the dimensions in his novella "Flatland: A Romance of Many Dimensions" (1884). This well-known satire is the story of a flat land inhabited by geometric shapes trying to navigate the subtleties of their geometric, social, and political positions. In this article, the authors…

  17. Astronomy and Navigation

    NASA Astrophysics Data System (ADS)

    Pimenta, Fernando

    Different people, seafaring in different parts of the world, used strategies well adapted to their environment with the purpose of safely reaching their destination. Astronomical elements, present in their navigation "toolkit" for orientation, calendar purposes, and time reckoning, contributed to their conceptualization of space and time and were eventually integrated in their ritual, social organization, and social power structure.

  18. Learning for autonomous navigation

    NASA Technical Reports Server (NTRS)

    Angelova, Anelia; Howard, Andrew; Matthies, Larry; Tang, Benyang; Turmon, Michael; Mjolsness, Eric

    2005-01-01

    Autonomous off-road navigation of robotic ground vehicles has important applications on Earth and in space exploration. Progress in this domain has been retarded by the limited lookahead range of 3-D sensors and by the difficulty of preprogramming systems to understand the traversability of the wide variety of terrain they can encounter.

  19. Navigation for everyday life

    SciTech Connect

    Fu, D.D.; Hammond, K.J.; Swain, M.J.

    1996-12-31

    Past work in navigation has worked toward the goal of producing an accurate map of the environment. While no one can deny the usefulness of such a map, the ideal of producing a complete map becomes unrealistic when an agent is faced with performing real tasks. And yet an agent accomplishing recurring tasks should navigate more efficiently as time goes by. We present a system which integrates navigation, planning, and vision. In this view, navigation supports the needs of a larger system as opposed to being a task in its own right. Whereas previous approaches assume an unknown and unstructured environment, we assume a structured environment whose organization is known, but whose specifics are unknown. The system is endowed with a wide range of visual capabilities as well as search plans for informed exploration of a simulated store constructed from real visual data. We demonstrate the agent finding items while mapping the world. In repeatedly retrieving items, the agent`s performance improves as the learned map becomes more useful.

  20. 76 FR 22395 - Federal Advisory Committee Act; Open Internet Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-21

    ... COMMISSION Federal Advisory Committee Act; Open Internet Advisory Committee AGENCY: Federal Communications... ``Open Internet Advisory Committee'' (hereinafter ``the Committee''), is being established. FOR FURTHER... Internet rules (available at...

  1. 78 FR 33092 - Federal Advisory Committee Act; Technological Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-03

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION Federal Advisory Committee Act; Technological Advisory Council AGENCY: Federal Communications..., this notice advises interested persons that the Federal Communications Commission's (FCC)...

  2. 77 FR 70434 - Federal Advisory Committee Act; Technological Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-26

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION Federal Advisory Committee Act; Technological Advisory Council AGENCY: Federal Communications..., this notice advises interested persons that the Federal Communications Commission's (FCC)...

  3. 77 FR 52332 - Federal Advisory Committee Act; Technological Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-29

    ... COMMISSION Federal Advisory Committee Act; Technological Advisory Council AGENCY: Federal Communications..., this notice advises interested persons that the Federal Communications Commission's (FCC) Technological... Division, 202-418-0807; Walter.Johnston@FCC.gov . SUPPLEMENTARY INFORMATION: The FCC Technological...

  4. Space shuttle navigation analysis. Volume 2: Baseline system navigation

    NASA Technical Reports Server (NTRS)

    Jones, H. L.; Luders, G.; Matchett, G. A.; Rains, R. G.

    1980-01-01

    Studies related to the baseline navigation system for the orbiter are presented. The baseline navigation system studies include a covariance analysis of the Inertial Measurement Unit calibration and alignment procedures, postflight IMU error recovery for the approach and landing phases, on-orbit calibration of IMU instrument biases, and a covariance analysis of entry and prelaunch navigation system performance.

  5. Contextual and Conceptual Information Retrieval and Navigation on the Web

    NASA Astrophysics Data System (ADS)

    Le Grand, Bénédicte; Aufaure, Marie-Aude; Soto, Michel

    The goal of this chapter is to propose a methodology and tools to enhance information retrieval and navigation on the Web through contextual and conceptual help. This methodology provides users with an extended navigation space by adding a conceptual and a semantic layer above Web data. The conceptual layer is made of Galois lattices which cluster Web pages into concepts according to their common features (in particular their textual content). These lattices represent the Global Conceptual Context of Web pages. An additional navigation layer is provided by ontologies which are connected to the conceptual level through specific concepts of the lattices. Users may navigate transparently within each of these three layers and go from one to another very easily.

  6. 75 FR 30002 - Federal Advisory Committee; Threat Reduction Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-28

    ... Office of the Secretary Federal Advisory Committee; Threat Reduction Advisory Committee AGENCY... the charter for the Threat Reduction Advisory Committee (hereafter referred to as the Committee). FOR... Acquisition, Technology and Logistics and the Director of the Defense Threat Reduction Agency on the...

  7. 76 FR 71033 - Federal Advisory Committee Act; Technological Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-16

    ... COMMISSION Federal Advisory Committee Act; Technological Advisory Council AGENCY: Federal Communications..., this notice advises interested persons that the Federal Communications Commission's (FCC) Technological... Technological Advisory Council by email: Walter.Johnston@fcc.gov or U.S. Postal Service Mail (Walter...

  8. 76 FR 58513 - Federal Advisory Committee Act; Technological Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-21

    ... COMMISSION Federal Advisory Committee Act; Technological Advisory Council AGENCY: Federal Communications..., this notice advises interested persons that the Federal Communications Commission's (FCC) Technological... Officer for Technological Advisory Council by e-mail: Walter.Johnston@fcc.gov or U.S. Postal Service...

  9. 78 FR 12059 - Federal Advisory Committee Act; Technological Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-21

    ... COMMISSION Federal Advisory Committee Act; Technological Advisory Council AGENCY: Federal Communications...) Technological Advisory Council will hold a meeting on Monday, March 11, 2013 in the Commission Meeting Room... Division, 202-418-0807; Walter.Johnston@FCC.gov . SUPPLEMENTARY INFORMATION: The FCC Technological...

  10. Terrain-Adaptive Navigation Architecture

    NASA Technical Reports Server (NTRS)

    Helmick, Daniel M.; Angelova, Anelia; Matthies, Larry H.; Helmick, Daniel M.

    2008-01-01

    A navigation system designed for a Mars rover has been designed to deal with rough terrain and/or potential slip when evaluating and executing paths. The system also can be used for any off-road, autonomous vehicles. The system enables vehicles to autonomously navigate different terrain challenges including dry river channel systems, putative shorelines, and gullies emanating from canyon walls. Several of the technologies within this innovation increase the navigation system s capabilities compared to earlier rover navigation algorithms.

  11. Magnetospheric Multiscale Mission (MMS) Phase 2B Navigation Performance

    NASA Technical Reports Server (NTRS)

    Scaperoth, Paige Thomas; Long, Anne; Carpenter, Russell

    2009-01-01

    The Magnetospheric Multiscale (MMS) formation flying mission, which consists of four spacecraft flying in a tetrahedral formation, has challenging navigation requirements associated with determining and maintaining the relative separations required to meet the science requirements. The baseline navigation concept for MMS is for each spacecraft to independently estimate its position, velocity and clock states using GPS pseudorange data provided by the Goddard Space Flight Center-developed Navigator receiver and maneuver acceleration measurements provided by the spacecraft's attitude control subsystem. State estimation is performed onboard in real-time using the Goddard Enhanced Onboard Navigation System flight software, which is embedded in the Navigator receiver. The current concept of operations for formation maintenance consists of a sequence of two maintenance maneuvers that is performed every 2 weeks. Phase 2b of the MMS mission, in which the spacecraft are in 1.2 x 25 Earth radii orbits with nominal separations at apogee ranging from 30 km to 400 km, has the most challenging navigation requirements because, during this phase, GPS signal acquisition is restricted to less than one day of the 2.8-day orbit. This paper summarizes the results from high-fidelity simulations to determine if the MMS navigation requirements can be met between and immediately following the maintenance maneuver sequence in Phase 2b.

  12. Autonomous GPS/INS navigation experiment for Space Transfer Vehicle

    NASA Technical Reports Server (NTRS)

    Upadhyay, Triveni N.; Cotterill, Stephen; Deaton, A. W.

    1993-01-01

    An experiment to validate the concept of developing an autonomous integrated spacecraft navigation system using on board Global Positioning System (GPS) and Inertial Navigation System (INS) measurements is described. The feasibility of integrating GPS measurements with INS measurements to provide a total improvement in spacecraft navigation performance, i.e. improvement in position, velocity and attitude information, was previously demonstrated. An important aspect of this research is the automatic real time reconfiguration capability of the system designed to respond to changes in a spacecraft mission under the control of an expert system.

  13. Coastal Piloting & Charting: Navigation 101.

    ERIC Educational Resources Information Center

    Osinski, Alison

    This curriculum guide for a beginning course on marine navigation describes marine navigation (the art of and science of determining position of a ship and its movement from one position to another in order to keep track of where the ship is and where it is going) and defines dead reckoning, piloting, electronic navigation, and celestial…

  14. Advisory: Definitions, Descriptions, Decisions, Directions.

    ERIC Educational Resources Information Center

    Galassi, John P.; Gulledge, Suzanne A.; Cox, Nancy D.

    Advisory groups have played an essential role in improving the school climate and conditions for young adolescents in schools. How middle school decision makers go about the process of designing or re-designing an advisory program needs to be considered. A discussion is presented of the background information that helps define advisories. It…

  15. Self-navigating robot

    NASA Technical Reports Server (NTRS)

    Thompson, A. M.

    1978-01-01

    Rangefinding equipment and onboard navigation system determine best route from point to point. Research robot has two TV cameras and laser for scanning and mapping its environment. Path planner finds most direct, unobstructed route that requires minimum expenditure of energy. Distance is used as measure of energy expense, although other measures such as time or power consumption (which would depend on the topography of the path) may be used.

  16. Multisensor robot navigation system

    NASA Astrophysics Data System (ADS)

    Persa, Stelian; Jonker, Pieter P.

    2002-02-01

    Almost all robot navigation systems work indoors. Outdoor robot navigation systems offer the potential for new application areas. The biggest single obstacle to building effective robot navigation systems is the lack of accurate wide-area sensors for trackers that report the locations and orientations of objects in an environment. Active (sensor-emitter) tracking technologies require powered-device installation, limiting their use to prepared areas that are relative free of natural or man-made interference sources. The hybrid tracker combines rate gyros and accelerometers with compass and tilt orientation sensor and DGPS system. Sensor distortions, delays and drift required compensation to achieve good results. The measurements from sensors are fused together to compensate for each other's limitations. Analysis and experimental results demonstrate the system effectiveness. The paper presents a field experiment for a low-cost strapdown-IMU (Inertial Measurement Unit)/DGPS combination, with data processing for the determination of 2-D components of position (trajectory), velocity and heading. In the present approach we have neglected earth rotation and gravity variations, because of the poor gyroscope sensitivities of our low-cost ISA (Inertial Sensor Assembly) and because of the relatively small area of the trajectory. The scope of this experiment was to test the feasibility of an integrated DGPS/IMU system of this type and to develop a field evaluation procedure for such a combination.

  17. Navigation in virtual environments

    NASA Astrophysics Data System (ADS)

    Arthur, Erik; Hancock, Peter A.; Telke, Susan

    1996-06-01

    Virtual environments show great promise in the area of training. ALthough such synthetic environments project homeomorphic physical representations of real- world layouts, it is not known how individuals develop models to match such environments. To evaluate this process, the present experiment examined the accuracy of triadic representations of objects having learned them previously under different conditions. The layout consisted of four different colored spheres arranged on a flat plane. These objects could be viewed in either a free navigation virtual environment condition (NAV) or a single body position virtual environment condition. The first condition allowed active exploration of the environment while the latter condition allowed the participant only a passive opportunity to observe form a single viewpoint. These viewing conditions were a between-subject variable with ten participants randomly assigned to each condition. Performance was assessed by the response latency to judge the accuracy of a layout of three objects over different rotations. Results showed linear increases in response latency as the rotation angle increased from the initial perspective in SBP condition. The NAV condition did not show a similar effect of rotation angle. These results suggest that the spatial knowledge acquisition from virtual environments through navigation is similar to actual navigation.

  18. The memory structure of navigation in honeybees.

    PubMed

    Menzel, Randolf; Greggers, Uwe

    2015-06-01

    The analytical approach to navigation studies aims to identify elementary sensory motor processes that guide an animal to a remote site. This approach will be used here to characterize components of navigation in a flying insect, the honeybee. However, navigation studies need to go beyond an analysis of behavioral routines to come up with a synthesis. We will defend the concept of an active memory structure guiding navigation in bees that is best described as a mental or cognitive map. In our opinion, spatial/temporal relations of landmarks are stored in a mental map in such a way that behavioral routines such as expectation and planning, as indicated by shortcutting, are possible. We view the mental map of animals including the honeybee as an "action memory of spatial relations" rather than as a sensory representation as we humans experience it by introspection. Two components characterize the mental map, the relational representation of landmarks and the meaning of locations to the animal. As yet, there is little data to suggest that bees assign meaning to the experienced locations. To explore this possibility, further studies will be needed, whereby honeybees provide a unique model to address this question. PMID:25707351

  19. Imaging, Navigation, and Robotics in Spine Surgery.

    PubMed

    Johnson, Norbert

    2016-04-01

    Spinal technology involves imaging, navigation, and robotics-collectively known as "image-guided therapy." Imaging coupled with navigation enhances visualization of irregular anatomy, enabling less invasive procedures. With robotics surgeons can perform quicker and safer hand movements with increased accuracy. In the 1890s, X-rays were invented by Roentgen. The first piece of X-ray equipment, the Cryptoscope, would take an image for 15 minutes, with the surgeon placing his hand in front of the beam to guide calibration; radiation exposure for both surgeon and patient was extreme. In the 1950s, fluoroscopy (C-arm) was invented. In the 1970s, computer-assisted tomography (CAT), known as CAT scan, became available; magnetic resonance imaging had its beginnings in the 1980s, and in 1985, the first robotic surgery was performed to obtain a neurosurgical biopsy specimen. The concept of navigation was introduced in the 1990s, and today's niche products for navigation came onto the market in the 2000s. PMID:27015071

  20. Navigation Architecture For A Space Mobile Network

    NASA Technical Reports Server (NTRS)

    Valdez, Jennifer E.; Ashman, Benjamin; Gramling, Cheryl; Heckler, Gregory W.; Carpenter, Russell

    2016-01-01

    The Tracking and Data Relay Satellite System (TDRSS) Augmentation Service for Satellites (TASS) is a proposed beacon service to provide a global, space-based GPS augmentation service based on the NASA Global Differential GPS (GDGPS) System. The TASS signal will be tied to the GPS time system and usable as an additional ranging and Doppler radiometric source. Additionally, it will provide data vital to autonomous navigation in the near Earth regime, including space weather information, TDRS ephemerides, Earth Orientation Parameters (EOP), and forward commanding capability. TASS benefits include enhancing situational awareness, enabling increased autonomy, and providing near real-time command access for user platforms. As NASA Headquarters Space Communication and Navigation Office (SCaN) begins to move away from a centralized network architecture and towards a Space Mobile Network (SMN) that allows for user initiated services, autonomous navigation will be a key part of such a system. This paper explores how a TASS beacon service enables the Space Mobile Networking paradigm, what a typical user platform would require, and provides an in-depth analysis of several navigation scenarios and operations concepts.

  1. 78 FR 9917 - The President's Management Advisory Board (PMAB); Notification of Upcoming Public Advisory Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-12

    ...) portfolio and project management; Senior Executive Service (SES) leadership development and SES performance... ADMINISTRATION The President's Management Advisory Board (PMAB); Notification of Upcoming Public Advisory Meeting.... SUMMARY: The President's Management Advisory Board (PMAB), a Federal Advisory Committee established...

  2. 77 FR 12841 - The President's Management Advisory Board (PMAB); Notification of Upcoming Public Advisory Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-02

    ... recommendations aimed at improving Information Technology (IT) portfolio and project management, IT vendor... ADMINISTRATION The President's Management Advisory Board (PMAB); Notification of Upcoming Public Advisory Meeting.... SUMMARY: The President's Management Advisory Board (PMAB), a Federal Advisory Committee established...

  3. 76 FR 53901 - The President's Management Advisory Board (PMAB); Notification of Upcoming Public Advisory Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-30

    ... improve government performance in the areas of IT portfolio and project management, IT vendor performance... ADMINISTRATION The President's Management Advisory Board (PMAB); Notification of Upcoming Public Advisory Meeting.... SUMMARY: The President's Management Advisory Board (PMAB), a Federal Advisory Committee established...

  4. 77 FR 59399 - The President's Management Advisory Board (PMAB); Notification of Upcoming Public Advisory Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-27

    ... Information Technology (IT) portfolio and project management, IT vendor performance management, Senior... ADMINISTRATION The President's Management Advisory Board (PMAB); Notification of Upcoming Public Advisory Meeting.... SUMMARY: The President's Management Advisory Board (PMAB), a Federal Advisory Committee established...

  5. 76 FR 18757 - Monthly Public Meetings of the Local Government Advisory Committee's Small Community Advisory...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-05

    ... From the Federal Register Online via the Government Publishing Office ENVIRONMENTAL PROTECTION AGENCY Monthly Public Meetings of the Local Government Advisory Committee's Small Community Advisory... Advisory Committee Act, the U.S. Environmental Protection Agency's Local Government Advisory...

  6. Principles of X-ray Navigation

    SciTech Connect

    Hanson, John Eric; /SLAC

    2006-03-17

    X-ray navigation is a new concept in satellite navigation in which orientation, position and time are measured by observing stellar emissions in x-ray wavelengths. X-ray navigation offers the opportunity for a single instrument to be used to measure these parameters autonomously. Furthermore, this concept is not limited to missions in close proximity to the earth. X-ray navigation can be used on a variety of missions from satellites in low earth orbit to spacecraft on interplanetary missions. In 1997 the Unconventional Stellar Aspect Experiment (USA) will be launched as part of the Advanced Research and Global Observation Satellite (ARGOS). USA will provide the first platform for real-time experimentation in the field of x-ray navigation and also serves as an excellent case study for the design and manufacturing of space qualified systems in small, autonomous groups. Current techniques for determining the orientation of a satellite rely on observations of the earth, sun and stars in infrared, visible or ultraviolet wavelengths. It is possible to use x-ray imaging devices to provide arcsecond level measurement of attitude based on star patterns in the x-ray sky. This technique is explored with a simple simulation. Collimated x-ray detectors can be used on spinning satellites to provide a cheap and reliable measure of orientation. This is demonstrated using observations of the Crab Pulsar taken by the high Energy Astronomy Observatory (HEAO-1) in 1977. A single instrument concept is shown to be effective, but dependent on an a priori estimate of the guide star intensity and thus susceptible to errors in that estimate. A star scanner based on a differential measurement from two x-ray detectors eliminates the need for an a priori estimate of the guide star intensity. A first order model and a second order model of the two star scanner concepts are considered. Many of the stars that emit in the x-ray regime are also x-ray pulsars with frequency stability approaching a

  7. 33 CFR 209.325 - Navigation lights, aids to navigation, navigation charts, and related data policy, practices and...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 3 2012-07-01 2012-07-01 false Navigation lights, aids to... ADMINISTRATIVE PROCEDURE § 209.325 Navigation lights, aids to navigation, navigation charts, and related data... procedure to be used by all Corps of Engineers installations and activities in connection with aids...

  8. 33 CFR 209.325 - Navigation lights, aids to navigation, navigation charts, and related data policy, practices and...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false Navigation lights, aids to... ADMINISTRATIVE PROCEDURE § 209.325 Navigation lights, aids to navigation, navigation charts, and related data... procedure to be used by all Corps of Engineers installations and activities in connection with aids...

  9. 33 CFR 209.325 - Navigation lights, aids to navigation, navigation charts, and related data policy, practices and...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false Navigation lights, aids to... ADMINISTRATIVE PROCEDURE § 209.325 Navigation lights, aids to navigation, navigation charts, and related data... procedure to be used by all Corps of Engineers installations and activities in connection with aids...

  10. 33 CFR 209.325 - Navigation lights, aids to navigation, navigation charts, and related data policy, practices and...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 3 2011-07-01 2011-07-01 false Navigation lights, aids to... ADMINISTRATIVE PROCEDURE § 209.325 Navigation lights, aids to navigation, navigation charts, and related data... procedure to be used by all Corps of Engineers installations and activities in connection with aids...

  11. The Learning Organization Implemented in Education through Advisory Committees

    ERIC Educational Resources Information Center

    Davis, Jason Lee; Davis, Harley

    2009-01-01

    Advisory committees have an established history as effective leadership components to assist in planning and evaluating vocational programs and in establishing communication links between institutions and communities. Authorities in the concepts of learning teams, such as Massachusetts Institute of Technology's Peter Senge, Harvard Business…

  12. Integrated navigation method based on inertial navigation system and Lidar

    NASA Astrophysics Data System (ADS)

    Zhang, Xiaoyue; Shi, Haitao; Pan, Jianye; Zhang, Chunxi

    2016-04-01

    An integrated navigation method based on the inertial navigational system (INS) and Lidar was proposed for land navigation. Compared with the traditional integrated navigational method and dead reckoning (DR) method, the influence of the inertial measurement unit (IMU) scale factor and misalignment was considered in the new method. First, the influence of the IMU scale factor and misalignment on navigation accuracy was analyzed. Based on the analysis, the integrated system error model of INS and Lidar was established, in which the IMU scale factor and misalignment error states were included. Then the observability of IMU error states was analyzed. According to the results of the observability analysis, the integrated system was optimized. Finally, numerical simulation and a vehicle test were carried out to validate the availability and utility of the proposed INS/Lidar integrated navigational method. Compared with the test result of a traditional integrated navigation method and DR method, the proposed integrated navigational method could result in a higher navigation precision. Consequently, the IMU scale factor and misalignment error were effectively compensated by the proposed method and the new integrated navigational method is valid.

  13. GPS-INS-STAR - A navigation system for the era of space autonomy

    NASA Astrophysics Data System (ADS)

    Tanabe, Toru; Kitamura, Toshiaki; Ikeuchi, Masayuki; Tanaka, Toshiyuki; Akasaka, Akira

    Experimental validation of the GPS-INS-STAR hybrid navigation system concept is performed. First, an INS-STAR hybrid navigation system is constructed on the 3-axis motion table to verify the performance of its attitude loop. A GPS-INS hybrid navigation system is then installed on a car, and its translational performance is evaluated. Each result of the experiments is verified by theoretical analysis, and its feasibility for space application is evaluated. Through the experiments, the concept of the autonomous hybrid navigation is validated, and its potential in space autonomy is indicated.

  14. 5 CFR 2636.103 - Advisory opinions.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 3 2011-01-01 2011-01-01 false Advisory opinions. 2636.103 Section 2636... Advisory opinions. (a) Request for an advisory opinion. (1) An employee may request an advisory opinion... any provision contained in this part. (2) An advisory opinion may not be obtained for the purpose...

  15. 5 CFR 2636.103 - Advisory opinions.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 5 Administrative Personnel 3 2013-01-01 2013-01-01 false Advisory opinions. 2636.103 Section 2636... Advisory opinions. (a) Request for an advisory opinion. (1) An employee may request an advisory opinion... any provision contained in this part. (2) An advisory opinion may not be obtained for the purpose...

  16. 5 CFR 2636.103 - Advisory opinions.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 5 Administrative Personnel 3 2012-01-01 2012-01-01 false Advisory opinions. 2636.103 Section 2636... Advisory opinions. (a) Request for an advisory opinion. (1) An employee may request an advisory opinion... any provision contained in this part. (2) An advisory opinion may not be obtained for the purpose...

  17. 5 CFR 2636.103 - Advisory opinions.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 5 Administrative Personnel 3 2014-01-01 2014-01-01 false Advisory opinions. 2636.103 Section 2636... Advisory opinions. (a) Request for an advisory opinion. (1) An employee may request an advisory opinion... any provision contained in this part. (2) An advisory opinion may not be obtained for the purpose...

  18. 33 CFR 401.35 - Navigation underway.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 3 2011-07-01 2011-07-01 false Navigation underway. 401.35 Section 401.35 Navigation and Navigable Waters SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION SEAWAY REGULATIONS AND RULES Regulations Seaway Navigation § 401.35...

  19. 33 CFR 401.35 - Navigation underway.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Navigation underway. 401.35 Section 401.35 Navigation and Navigable Waters SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION SEAWAY REGULATIONS AND RULES Regulations Seaway Navigation § 401.35...

  20. 33 CFR 401.53 - Obstructing navigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 3 2011-07-01 2011-07-01 false Obstructing navigation. 401.53 Section 401.53 Navigation and Navigable Waters SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION SEAWAY REGULATIONS AND RULES Regulations Seaway Navigation § 401.53...

  1. 33 CFR 401.35 - Navigation underway.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false Navigation underway. 401.35 Section 401.35 Navigation and Navigable Waters SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION SEAWAY REGULATIONS AND RULES Regulations Seaway Navigation § 401.35...

  2. 33 CFR 401.35 - Navigation underway.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false Navigation underway. 401.35 Section 401.35 Navigation and Navigable Waters SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION SEAWAY REGULATIONS AND RULES Regulations Seaway Navigation § 401.35...

  3. 33 CFR 401.53 - Obstructing navigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false Obstructing navigation. 401.53 Section 401.53 Navigation and Navigable Waters SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION SEAWAY REGULATIONS AND RULES Regulations Seaway Navigation § 401.53...

  4. 33 CFR 401.53 - Obstructing navigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Obstructing navigation. 401.53 Section 401.53 Navigation and Navigable Waters SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION SEAWAY REGULATIONS AND RULES Regulations Seaway Navigation § 401.53...

  5. 33 CFR 401.53 - Obstructing navigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 3 2012-07-01 2012-07-01 false Obstructing navigation. 401.53 Section 401.53 Navigation and Navigable Waters SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION SEAWAY REGULATIONS AND RULES Regulations Seaway Navigation § 401.53...

  6. 33 CFR 401.35 - Navigation underway.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 3 2012-07-01 2012-07-01 false Navigation underway. 401.35 Section 401.35 Navigation and Navigable Waters SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION SEAWAY REGULATIONS AND RULES Regulations Seaway Navigation § 401.35...

  7. 33 CFR 401.53 - Obstructing navigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false Obstructing navigation. 401.53 Section 401.53 Navigation and Navigable Waters SAINT LAWRENCE SEAWAY DEVELOPMENT CORPORATION, DEPARTMENT OF TRANSPORTATION SEAWAY REGULATIONS AND RULES Regulations Seaway Navigation § 401.53...

  8. Control algorithms for autonomous robot navigation

    SciTech Connect

    Jorgensen, C.C.

    1985-09-20

    This paper examines control algorithm requirements for autonomous robot navigation outside laboratory environments. Three aspects of navigation are considered: navigation control in explored terrain, environment interactions with robot sensors, and navigation control in unanticipated situations. Major navigation methods are presented and relevance of traditional human learning theory is discussed. A new navigation technique linking graph theory and incidental learning is introduced.

  9. Fundamentals of satellite navigation

    NASA Astrophysics Data System (ADS)

    Stiller, A. H.

    The basic operating principles and capabilities of conventional and satellite-based navigation systems for air, sea, and land vehicles are reviewed and illustrated with diagrams. Consideration is given to autonomous onboard systems; systems based on visible or radio beacons; the Transit, Cicada, Navstar-GPS, and Glonass satellite systems; the physical laws and parameters of satellite motion; the definition of time in satellite systems; and the content of the demodulated GPS data signal. The GPS and Glonass data format frames are presented graphically, and tables listing the GPS and Glonass satellites, their technical characteristics, and the (past or scheduled) launch dates are provided.

  10. Aeronautic Instruments. Section VI : Aerial Navigation and Navigating Instruments

    NASA Technical Reports Server (NTRS)

    Eaton, H N

    1923-01-01

    This report outlines briefly the methods of aerial navigation which have been developed during the past few years, with a description of the different instruments used. Dead reckoning, the most universal method of aerial navigation, is first discussed. Then follows an outline of the principles of navigation by astronomical observation; a discussion of the practical use of natural horizons, such as sea, land, and cloud, in making extant observations; the use of artificial horizons, including the bubble, pendulum, and gyroscopic types. A description is given of the recent development of the radio direction finder and its application to navigation.

  11. Learning for Autonomous Navigation

    NASA Technical Reports Server (NTRS)

    Angelova, Anelia; Howard, Andrew; Matthies, Larry; Tang, Benyang; Turmon, Michael; Mjolsness, Eric

    2005-01-01

    Robotic ground vehicles for outdoor applications have achieved some remarkable successes, notably in autonomous highway following (Dickmanns, 1987), planetary exploration (1), and off-road navigation on Earth (1). Nevertheless, major challenges remain to enable reliable, high-speed, autonomous navigation in a wide variety of complex, off-road terrain. 3-D perception of terrain geometry with imaging range sensors is the mainstay of off-road driving systems. However, the stopping distance at high speed exceeds the effective lookahead distance of existing range sensors. Prospects for extending the range of 3-D sensors is strongly limited by sensor physics, eye safety of lasers, and related issues. Range sensor limitations also allow vehicles to enter large cul-de-sacs even at low speed, leading to long detours. Moreover, sensing only terrain geometry fails to reveal mechanical properties of terrain that are critical to assessing its traversability, such as potential for slippage, sinkage, and the degree of compliance of potential obstacles. Rovers in the Mars Exploration Rover (MER) mission have got stuck in sand dunes and experienced significant downhill slippage in the vicinity of large rock hazards. Earth-based off-road robots today have very limited ability to discriminate traversable vegetation from non-traversable vegetation or rough ground. It is impossible today to preprogram a system with knowledge of these properties for all types of terrain and weather conditions that might be encountered.

  12. Ionospheric modelling for navigation

    NASA Astrophysics Data System (ADS)

    Aragon Angel, M. A.

    Signals transmitted to and from satellites for communication and navigation purposes must pass through the ionosphere Ionospheric irregularities most common at equatorial latitudes although they could occur anywhere can have a major impact on system performance and reliability and commercial navigation service satellite-based providers need to account for their effects For a GNSS single-frequency receiver the Slant Total Electron Content STEC must be known by the user through broadcast corrections In this context there are several sets of broadcast parameters that can be defined to take into account this ionospheric term The chosen model to generate the ionospheric correction coefficients for the present study is the NeQuick model although with a number of adaptations intended to improve effective ionospheric effect modelling performances The aim of this study is to describe a possible adaptation to the NeQuick model for real time purposes and suitable for single frequency users Therefore it will be necessary to determine the performance of this modified NeQuick model in correcting the ionospheric delay In order to generate the ionospheric corrections for single frequency receivers using the NeQuick model a certain approach should be followed to adapt the performance of NeQuick since this model was originally developed to provide TEC using averaged monthly information of the solar activity and not daily one Thus to use NeQuick for real time applications as an ionospheric broadcasted model such as Klobuchar solar daily information at the user point

  13. Citizen Advisory Committees.

    ERIC Educational Resources Information Center

    Miller, Leann R.

    This guide, describing community involvement through citizen advisory committees, is a summary of the literature on such committees. Its main concern is district committees created by school boards. Citations in the bibliography contain all points of view on committees and present many alternatives on most of the topics covered in the guide.…

  14. A Placement Advisory Test

    ERIC Educational Resources Information Center

    Hughes, Chris

    2010-01-01

    The primary method of placement at Portland CC (PCC) is the Compass Placement test. For the most part, students are placed correctly, but there are cases when students feel that they have been placed too low. In such cases we use our newly created Placement Advisory Test (PAT) to help us place them appropriately. (Contains 2 figures.)

  15. Advisory Counseling for Librarians.

    ERIC Educational Resources Information Center

    Penland, Patrick R.

    The papers in the first section of this publication develop an understanding of the background, purpose and functions of advisory counseling in libraries. The purpose of the papers in the second section is to delineate the interrelationships of information transfer and meaning transfer and to lay out a background where flexibility can be developed…

  16. The UKCIS Advisory Service.

    ERIC Educational Resources Information Center

    Bingham, Archie

    1979-01-01

    Describes the free advisory service available to both users and potential users of chemical and biological databases in the United Kingdom and Ireland. Three specific areas are discussed in which queries about Chemical Abstracts Service (CAS) Registry Numbers have been received: isomers, replacing registry numbers, and mixed compounds. (JD)

  17. Space Shuttle Orbiter descent navigation

    NASA Technical Reports Server (NTRS)

    Montez, M. N.; Madden, M. F.

    1982-01-01

    The entry operational sequence (OPS 3) begins approximately 2 hours prior to the deorbit maneuver and continues through atmospheric entry, terminal area energy management (TAEM), approach and landing, and rollout. During this flight phase, the navigation state vector is estimated by the Space Shuttle Orbiter onboard navigation system. This estimate is computed using a six-element sequential Kalman filter, which blends inertial measurement unit (IMU) delta-velocity data with external navaid data. The external navaids available to the filter are tactical air navigation (TACAN), barometric altimeter, and microwave scan beam landing system (MSBLS). Attention is given to the functional design of the Orbiter navigation system, the descent navigation sensors and measurement processing, predicted Kalman gains, correlation coefficients, and current flights navigation performance.

  18. 76 FR 22672 - Shoshone Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-22

    ... Forest Service Shoshone Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Shoshone Resource Advisory Committee (Committee) will meet in Thermopolis, Wyoming... CONTACT: Olga Troxel, Resource Advisory Committee Coordinator, Shoshone National Forest...

  19. 76 FR 3081 - Shoshone Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-19

    ... Forest Service Shoshone Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Shoshone Resource Advisory Committee (Committee) will hold a conference call on.... FOR FURTHER INFORMATION CONTACT: Olga Troxel, Resource Advisory Committee Coordinator,...

  20. 76 FR 41196 - Shoshone Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-13

    ... Forest Service Shoshone Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Shoshone Resource Advisory Committee (Committee) will meet in Thermopolis, Wyoming...: Olga Troxel, Resource Advisory Committee Coordinator, Shoshone National Forest Supervisor's...

  1. 77 FR 56607 - Shoshone Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-13

    ... Forest Service Shoshone Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Shoshone Resource Advisory Committee (Committee) is holding a meeting on September... INFORMATION CONTACT: Olga Troxel, Resource Advisory Committee Coordinator, Shoshone National Forest...

  2. 77 FR 50675 - Virginia Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-22

    ... Forest Service Virginia Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Virginia Resource Advisory Committee will meet in Roanoke, Virginia. The committee... a case by case basis. Resource Advisory Committee Positions Available: Those interested in...

  3. 76 FR 2081 - Ketchikan Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-12

    ...; ] DEPARTMENT OF AGRICULTURE Forest Service Ketchikan Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Ketchikan Resource Advisory Committee will meet in Ketchikan..., 3031 Tongass Avenue, Ketchikan, Alaska. Send written comments to Ketchikan Resource Advisory...

  4. 77 FR 47360 - Shoshone Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-08

    ... Forest Service Shoshone Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Shoshone Resource Advisory Committee (Committee) will hold a conference call on.... FOR FURTHER INFORMATION CONTACT: Olga Troxel, Resource Advisory Committee Coordinator,...

  5. 76 FR 12317 - Shoshone Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-07

    ... Forest Service Shoshone Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Shoshone Resource Advisory Committee (Committee) will meet in Thermopolis, Wyoming... Broadway, Thermopolis, Wyoming. FOR FURTHER INFORMATION CONTACT: Olga Troxel, Resource Advisory...

  6. 77 FR 36250 - Recreation Resource Advisory Committees

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-18

    ... Forest Service Recreation Resource Advisory Committees AGENCY: Forest Service, USDA. ACTION: Call for nominations for the Pacific Northwest Recreation Resource Advisory Committee. SUMMARY: The Secretary of Agriculture has established the Pacific Northwest Recreation Resource Advisory Committee (Recreation...

  7. 77 FR 51512 - Allegheny Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-24

    ... Forest Service Allegheny Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Allegheny Resource Advisory Committee will meet in Warren, Pennsylvania. The... conducted: Allegheny Resource Advisory Committee members will solicit and consider project proposals...

  8. 77 FR 43064 - Meeting; Technology Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-23

    ... COMMISSION Meeting; Technology Advisory Committee AGENCY: Commodity Futures Trading Commission (CFTC). ACTION: Notice of emergency meeting of technology advisory committee. SUMMARY: The CFTC announces that on Thursday, July 26, 2012, the CFTC's Technology Advisory Committee (``TAC'') will hold an emergency...

  9. 75 FR 58367 - Technology Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-24

    ... COMMISSION Technology Advisory Committee Meeting AGENCY: Commodity Futures Trading Commission (``CFTC''). ACTION: Notice of meeting of Technology Advisory Committee. SUMMARY: The Technology Advisory Committee...., Washington, DC 20581, attention: Office of the Secretary. Please use the title ``Technology...

  10. 78 FR 50040 - Technology Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-16

    ... COMMISSION Technology Advisory Committee AGENCY: Commodity Futures Trading Commission. ACTION: Notice of Meeting of Technology Advisory Committee. SUMMARY: The Commodity Futures Trading Commission (CFTC) announces that on September 12, 2013, the CFTC's Technology Advisory Committee (TAC) will hold a...

  11. 76 FR 776 - Technology Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-06

    ... COMMISSION Technology Advisory Committee AGENCY: Commodity Futures Trading Commission (``CFTC''). ACTION: Notice of meeting of Technology Advisory Committee. SUMMARY: The Technology Advisory Committee will hold...., Washington, DC 20581, attention: Office of the Secretary. Please use the title ``Technology...

  12. 76 FR 31578 - Siskiyou Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-01

    ... Forest Service Siskiyou Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Siskiou Resource Advisory Committee will meet in Smith River, California. The..., OR Resource Advisory committee for Josephine, Coos and Curry Counties; review and recommend...

  13. 75 FR 56997 - Global Markets Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-17

    ... COMMISSION Global Markets Advisory Committee AGENCY: Commodity Futures Trading Commission (``CFTC''). ACTION: Notice of meeting of Global Markets Advisory Committee. SUMMARY: The Global Markets Advisory Committee...., Washington, DC 20581, attention Office of the Secretary. Please use the title ``Global Markets...

  14. 76 FR 81956 - National Infrastructure Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-29

    ... SECURITY National Infrastructure Advisory Council AGENCY: National Protection and Programs Directorate, DHS... Infrastructure Advisory Council (NIAC) will meet on Tuesday, January 10, 2012, at the National Press Club... CONTACT: Nancy Wong, National Infrastructure Advisory Council Designated Federal Officer, Department...

  15. 33 CFR 207.185 - Taylors Bayou, Tex., Beaumont Navigation District Lock; use, administration, and navigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 3 2012-07-01 2012-07-01 false Taylors Bayou, Tex., Beaumont Navigation District Lock; use, administration, and navigation. 207.185 Section 207.185 Navigation and Navigable Waters CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY, DEPARTMENT OF DEFENSE NAVIGATION...

  16. 33 CFR 207.185 - Taylors Bayou, Tex., Beaumont Navigation District Lock; use, administration, and navigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 3 2011-07-01 2011-07-01 false Taylors Bayou, Tex., Beaumont Navigation District Lock; use, administration, and navigation. 207.185 Section 207.185 Navigation and Navigable Waters CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY, DEPARTMENT OF DEFENSE NAVIGATION...

  17. 33 CFR 207.185 - Taylors Bayou, Tex., Beaumont Navigation District Lock; use, administration, and navigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false Taylors Bayou, Tex., Beaumont Navigation District Lock; use, administration, and navigation. 207.185 Section 207.185 Navigation and Navigable Waters CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY, DEPARTMENT OF DEFENSE NAVIGATION...

  18. 33 CFR 207.185 - Taylors Bayou, Tex., Beaumont Navigation District Lock; use, administration, and navigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false Taylors Bayou, Tex., Beaumont Navigation District Lock; use, administration, and navigation. 207.185 Section 207.185 Navigation and Navigable Waters CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY, DEPARTMENT OF DEFENSE NAVIGATION...

  19. 33 CFR 207.185 - Taylors Bayou, Tex., Beaumont Navigation District Lock; use, administration, and navigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Taylors Bayou, Tex., Beaumont Navigation District Lock; use, administration, and navigation. 207.185 Section 207.185 Navigation and Navigable Waters CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY, DEPARTMENT OF DEFENSE NAVIGATION...

  20. Shifting the Intertial Navigation Paradigm with the MEMS Technology

    NASA Technical Reports Server (NTRS)

    Crain, Timothy P., II; Bishop, Robert H.; Brady, Tye

    2010-01-01

    "Why don't you use MEMS?" is of the most common questions posed to navigation systems engineers designing inertial navigation solutions in the modern era. The question stems from a general understanding that great strides have been made in terrestrial MEMS accelerometers and attitude rate sensors in terms of accuracy, mass, and power. Yet, when compared on a unit-to-unit basis, MEMS devices do not provide comparable performance (accuracy) to navigation grade sensors in several key metrics. This paper will propose a paradigm shift where the comparison in performance is between multiple MEMS devices and a single navigation grade sensor. The concept is that systematically, a sufficient number of MEMS sensors may mathematically provide comparable performance to a single navigation grade device and be competitive in terms power and mass allocations when viewed on a systems level. The implication is that both inertial navigation system design and fault detection, identification, and recovery could benefit from a system of MEMS devices in the same way that swarm sensing has benefited Earth observation and astronomy. A survey of the state of the art in inertial sensor accuracy scaled by mass and power will be provided to show the scaled error in MEMS and navigation graded devices, a mathematical comparison of multi-unit to single-unit sensor errors will be developed, and preliminary application to an Orion lunar skip atmospheric entry trajectory will be explored.

  1. Shifting the Inertial Navigation Paradigm with MEMS Technology

    NASA Technical Reports Server (NTRS)

    Crain, Timothy; Brady, Tye; Bishop, Robert H.

    2010-01-01

    Why don t you use MEMS? is one of the most common questions posed to navigation systems engineers designing inertial navigation solutions in the modern era. The question stems from a general understanding that great strides have been made in terrestrial MEMS accelerometers and attitude rate sensors in terms of accuracy, mass, and power. Yet, when compared on a unit-to-unit basis, MEMS devices do not provide comparable performance (accuracy) to navigation grade sensors. This paper will propose a paradigm shift where the comparison in performance is between multiple MEMS devices and a single navigation grade sensor. The concept is that systematically, a sufficient number of MEMS sensors may mathematically provide comparable performance to a single navigation grade device and be competitive in terms power and mass allocations when viewed on a systems level. The implication is that both inertial navigation system design and fault detection, identification, and recovery could benefit from a system of MEMS devices in the same way that swarm sensing has benefited Earth observation and astronomy. A survey of the state of the art in inertial sensor accuracy scaled by mass and power will be provided to show the specific error in MEMS and navigation graded devices, a mathematical comparison of multi-unit to single-unit sensor errors will be developed, and preliminary applications to Constellation vehicles will be explored.

  2. Navigation, robotics, and intraoperative imaging in spinal surgery.

    PubMed

    Ringel, Florian; Villard, Jimmy; Ryang, Yu-Mi; Meyer, Bernhard

    2014-01-01

    Spinal navigation is a technique gaining increasing popularity. Different approaches as CT-based or intraoperative imaging-based navigation are available, requiring different methods of patient registration, bearing certain advantages and disadvantages. So far, a large number of studies assessed the accuracy of pedicle screw implantation in the cervical, thoracic, and lumbar spine, elucidating the advantages of image guidance. However, a clear proof of patient benefit is missing, so far. Spinal navigation is closely related to intraoperative 3D imaging providing an imaging dataset for navigational use and the opportunity for immediate intraoperative assessment of final screw position giving the option of immediate screw revision if necessary. Thus, postoperative imaging and a potential revision surgery for screw correction become dispensable.Different concept of spinal robotics as the DaVinci system and SpineAssist are under investigation. PMID:24309918

  3. Advisory committee; Pediatric Advisory Committee; establishment. Final Rule.

    PubMed

    2004-08-01

    The Food and Drug Administration (FDA) is announcing the establishment of a Pediatric Advisory Committee in the Office of the Commissioner. Elsewhere in this issue of the Federal Register, FDA is publishing a document requesting nominations for the membership on this committee. This document adds the Pediatric Advisory Committee to the agency's list of standing advisory committees in 21 CFR 14.100. PMID:15287133

  4. Inertial navigation system for directional surveying

    SciTech Connect

    Kohler, S.M.

    1982-09-01

    A Wellbore Inertial Navigation System (WINS) was developed and tested. Developed for directional surveying of geothermal, oil, and gas wells, the system uses gyros and accelerometers to obtain survey errors of less than 10 ft (approx. 3 m) in a 10,000-ft (approx. 300-m) well. The tool, which communicates with a computer at the surface, is 4 in. (approx. 10 cm) in diameter and 20 ft (approx. 6.1 m) long. The concept and hardware is based on a system developed by Sandia for flight vehicles.

  5. Space shuttle navigation analysis. Volume 1: GPS aided navigation

    NASA Technical Reports Server (NTRS)

    Matchett, G. A.; Vogel, M. A.; Macdonald, T. J.

    1980-01-01

    Analytical studies related to space shuttle navigation are presented. Studies related to the addition of NAVSTAR Global Positioning System user equipment to the shuttle avionics suite are presented. The GPS studies center about navigation accuracy covariance analyses for both developmental and operational phases of GPS, as well as for various orbiter mission phases.

  6. Comprehension of Navigation Directions

    NASA Technical Reports Server (NTRS)

    Healy, Alice F.; Schneider, Vivian I.

    2002-01-01

    Subjects were shown navigation instructions varying in length directing them to move in a space represented by grids on a computer screen. They followed the instructions by clicking on the grids in the locations specified. Some subjects repeated back the instructions before following them, some did not, and others repeated back the instructions in reduced form, including only the critical words. The commands in each message were presented simultaneously for half of the subjects and sequentially for the others. For the longest messages, performance was better on the initial commands and worse on the final commands with simultaneous than with sequential presentation. Instruction repetition depressed performance, but reduced repetition removed this disadvantage. Effects of presentation format were attributed to visual scanning strategies. The advantage for reduced repetition was attributable either to enhanced visual scanning or to reduced output interference. A follow-up study with auditory presentation supported the visual scanning explanation.

  7. Automated satellite image navigation

    NASA Astrophysics Data System (ADS)

    Bassett, Robert M.

    1992-12-01

    The automated satellite image navigation method (Auto-Avian) developed and tested by Spaulding (1990) at the Naval Postgraduate School is investigated. The Auto-Avian method replaced the manual procedure of selecting Ground Control Points (GCP's) with an autocorrelation process that utilizes the World Vector Shoreline (WVS) provided by the Defense Mapping Agency (DMA) as a string of GCP's to rectify satellite images. The automatic cross-correlation of binary reference (WVS) and search (image) windows eliminated the subjective error associated with the manual selection of GCP's and produced accuracies comparable to the manual method. The scope of Spaulding's (1990) research was expanded. The worldwide application of the Auto-Avian method was demonstrated in three world regions (eastern North Pacific Ocean, eastern North Atlantic Ocean, and Persian Gulf). Using five case studies, the performance of the Auto-Avian method on 'less than optimum' images (i.e., islands, coastlines affected by lateral distortion and/or cloud cover) was investigated.

  8. Comprehension of Navigation Directions

    NASA Technical Reports Server (NTRS)

    Schneider, Vivian I.; Healy, Alice F.

    2000-01-01

    In an experiment simulating communication between air traffic controllers and pilots, subjects were given navigation instructions varying in length telling them to move in a space represented by grids on a computer screen. The subjects followed the instructions by clicking on the grids in the locations specified. Half of the subjects read the instructions, and half heard them. Half of the subjects in each modality condition repeated back the instructions before following them,and half did not. Performance was worse for the visual than for the auditory modality on the longer messages. Repetition of the instructions generally depressed performance, especially with the longer messages, which required more output than did the shorter messages, and especially with the visual modality, in which phonological recoding from the visual input to the spoken output was necessary. These results are explained in terms of the degrading effects of output interference on memory for instructions.

  9. Sensory bases of navigation.

    PubMed

    Gould, J L

    1998-10-01

    Navigating animals need to know both the bearing of their goal (the 'map' step), and how to determine that direction (the 'compass' step). Compasses are typically arranged in hierarchies, with magnetic backup as a last resort when celestial information is unavailable. Magnetic information is often essential to calibrating celestial cues, though, and repeated recalibration between celestial and magnetic compasses is important in many species. Most magnetic compasses are based on magnetite crystals, but others make use of induction or paramagnetic interactions between short-wavelength light and visual pigments. Though odors may be used in some cases, most if not all long-range maps probably depend on magnetite. Magnetitebased map senses are used to measure only latitude in some species, but provide the distance and direction of the goal in others. PMID:9778524

  10. Dynamic Transportation Navigation

    NASA Astrophysics Data System (ADS)

    Meng, Xiaofeng; Chen, Jidong

    Miniaturization of computing devices, and advances in wireless communication and sensor technology are some of the forces that are propagating computing from the stationary desktop to the mobile outdoors. Some important classes of new applications that will be enabled by this revolutionary development include intelligent traffic management, location-based services, tourist services, mobile electronic commerce, and digital battlefield. Some existing application classes that will benefit from the development include transportation and air traffic control, weather forecasting, emergency response, mobile resource management, and mobile workforce. Location management, i.e., the management of transient location information, is an enabling technology for all these applications. In this chapter, we present the applications of moving objects management and their functionalities, in particular, the application of dynamic traffic navigation, which is a challenge due to the highly variable traffic state and the requirement of fast, on-line computations.

  11. Stardust Navigation Covariance Analysis

    NASA Astrophysics Data System (ADS)

    Menon, Premkumar R.

    2000-01-01

    The Stardust spacecraft was launched on February 7, 1999 aboard a Boeing Delta-II rocket. Mission participants include the National Aeronautics and Space Administration (NASA), the Jet Propulsion Laboratory (JPL), Lockheed Martin Astronautics (LMA) and the University of Washington. The primary objective of the mission is to collect in-situ samples of the coma of comet Wild-2 and return those samples to the Earth for analysis. Mission design and operational navigation for Stardust is performed by the Jet Propulsion Laboratory (JPL). This paper will describe the extensive JPL effort in support of the Stardust pre-launch analysis of the orbit determination component of the mission covariance study. A description of the mission and it's trajectory will be provided first, followed by a discussion of the covariance procedure and models. Predicted accuracy's will be examined as they relate to navigation delivery requirements for specific critical events during the mission. Stardust was launched into a heliocentric trajectory in early 1999. It will perform an Earth Gravity Assist (EGA) on January 15, 2001 to acquire an orbit for the eventual rendezvous with comet Wild-2. The spacecraft will fly through the coma (atmosphere) on the dayside of Wild-2 on January 2, 2004. At that time samples will be obtained using an aerogel collector. After the comet encounter Stardust will return to Earth when the Sample Return Capsule (SRC) will separate and land at the Utah Test Site (UTTR) on January 15, 2006. The spacecraft will however be deflected off into a heliocentric orbit. The mission is divided into three phases for the covariance analysis. They are 1) Launch to EGA, 2) EGA to Wild-2 encounter and 3) Wild-2 encounter to Earth reentry. Orbit determination assumptions for each phase are provided. These include estimated and consider parameters and their associated a-priori uncertainties. Major perturbations to the trajectory include 19 deterministic and statistical maneuvers

  12. Magellan aerobrake navigation

    NASA Technical Reports Server (NTRS)

    Giorgini, Jon; Wong, S. Kuen; You, Tung-Han; Chadbourne, Pam; Lim, Lily

    1995-01-01

    The Magellan spacecraft has been aerobraked into a 197 x 541 km near-circular orbit around Venus from which it is conducting a high-resolution gravity mapping mission. This was the first interplanetary aerobrake maneuver and involved flying the spacecraft through the upper reaches of the Venusian atmosphere 730 times over a 70 day period. Round-trip light-time varied from 9.57 to 18.83 minutes during this period. Navigation for this dynamic phase of the Magellan mission was planned and executed in the face of budget-driven down-sizing with all spacecraft safe modes disabled and a flight-team one-third the size of comparable interplanetary missions. Successful execution of this manuever using spacecraft hardware not designed to operate in a planetary atmosphere, demonstrated a practical cost-saving technique for both large and small future interplanetary missions.

  13. 75 FR 28542 - Superior Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-21

    ... orient the new Superior Resource Advisory Committee members on their roles and responsibilities. DATES... of the roles and responsibilities of the Superior Resource Advisory Committee members; Election...

  14. 78 FR 22842 - Nicolet Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-17

    ...; ] DEPARTMENT OF AGRICULTURE Forest Service Nicolet Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Nicolet Resource Advisory Committee will meet in Crandon, WI....

  15. 76 FR 23787 - Ashley Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-28

    ...; ] DEPARTMENT OF AGRICULTURE Forest Service Ashley Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Ashley Resource Advisory Committee will meet in Vernal, Utah....

  16. 76 FR 45504 - Virginia Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-29

    ...; ] DEPARTMENT OF AGRICULTURE Forest Service Virginia Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Virginia Resource Advisory Committee will meet in...

  17. 75 FR 26918 - Siuslaw Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-13

    ...; ] DEPARTMENT OF AGRICULTURE Forest Service Siuslaw Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Siuslaw Resource Advisory Committee will meet in Corvallis,...

  18. 75 FR 39910 - Dixie Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-13

    ...; ] DEPARTMENT OF AGRICULTURE Forest Service Dixie Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meetings. SUMMARY: The Dixie Resource Advisory Committee will meet in Cedar City,...

  19. Intelligent personal navigator supported by knowledge-based systems for estimating dead reckoning navigation parameters

    NASA Astrophysics Data System (ADS)

    Moafipoor, Shahram

    Personal navigators (PN) have been studied for about a decade in different fields and applications, such as safety and rescue operations, security and emergency services, and police and military applications. The common goal of all these applications is to provide precise and reliable position, velocity, and heading information of each individual in various environments. In the PN system developed in this dissertation, the underlying assumption is that the system does not require pre-existing infrastructure to enable pedestrian navigation. To facilitate this capability, a multisensor system concept, based on the Global Positioning System (GPS), inertial navigation, barometer, magnetometer, and a human pedometry model has been developed. An important aspect of this design is to use the human body as navigation sensor to facilitate Dead Reckoning (DR) navigation in GPS-challenged environments. The system is designed predominantly for outdoor environments, where occasional loss of GPS lock may happen; however, testing and performance demonstration have been extended to indoor environments. DR navigation is based on a relative-measurement approach, with the key idea of integrating the incremental motion information in the form of step direction (SD) and step length (SL) over time. The foundation of the intelligent navigation system concept proposed here rests in exploiting the human locomotion pattern, as well as change of locomotion in varying environments. In this context, the term intelligent navigation represents the transition from the conventional point-to-point DR to dynamic navigation using the knowledge about the mechanism of the moving person. This approach increasingly relies on integrating knowledge-based systems (KBS) and artificial intelligence (AI) methodologies, including artificial neural networks (ANN) and fuzzy logic (FL). In addition, a general framework of the quality control for the real-time validation of the DR processing is proposed, based on a

  20. Air Navigation. Aerospace Education II.

    ERIC Educational Resources Information Center

    Gromling, F. C.; Mackin, T. E.

    This book, which can be used only in the Air Force ROTC program, elucidates ideas about air navigation techniques. The book is divided into two main parts. The first part describes the earth's surface and different components of navigation. A chapter on charts provides ideas about different kinds of charts and a variety of symbols used in…

  1. Introductory Course on Satellite Navigation

    ERIC Educational Resources Information Center

    Giger, Kaspar; Knogl, J. Sebastian

    2012-01-01

    Satellite navigation is widely used for personal navigation and more and more in precise and safety-critical applications. Thus, the subject is suited for attracting the interest of young people in science and engineering. The practical applications allow catching the students' attention for the theoretical background. Educational material on the…

  2. A Navigation Compendium. Revised Edition.

    ERIC Educational Resources Information Center

    Naval Training Command, Pensacola, FL.

    This unit of instruction was prepared for use in navigation study at the Officer Candidate School, the various Naval ROTC Units, and within the fleet. It is considered a naval text. It covers a wide and expanding subject area with brevity. Basic and elementary navigational terms and instruments are presented and described. The use of charts and…

  3. Communicating fish consumption advisories in California: what works, what doesn't.

    PubMed

    Tan, May Lynn; Ujihara, Alyce; Kent, Lani; Hendrickson, Ilinisa

    2011-07-01

    State agencies face many challenges in creating sport fish consumption advisories that can be readily understood by diverse populations. In this study, our objectives were to identify barriers to understanding consumption advisories and recommend more effective approaches for communicating advisory concepts. We conducted key informant interviews with demographically diverse consumers of sport fish from the Sacramento-San Joaquin Delta watershed in California to explore how intended audiences perceive consumption advisories and identify factors that influence comprehension. Some barriers to communication included the use of portion sizes that departed from commonly consumed amounts, poorly understood terminology, misleading category headings, and ineffective visual tools. Comprehension was enhanced when advisory information did not contradict existing beliefs about fish or fish consumption, and when advisories provided information about contaminant levels in specific kinds of fish. Using certain methods, such as portion sizes that reflect commonly consumed amounts, mercury meters to convey contaminant levels, three advice categories (e.g., high, medium, low), and population definitions that identify specific age ranges, improved the clarity of advisory concepts for intended audiences. PMID:21231943

  4. The real-world navigator

    NASA Technical Reports Server (NTRS)

    Balabanovic, Marko; Becker, Craig; Morse, Sarah K.; Nourbakhsh, Illah R.

    1994-01-01

    The success of every mobile robot application hinges on the ability to navigate robustly in the real world. The problem of robust navigation is separable from the challenges faced by any particular robot application. We offer the Real-World Navigator as a solution architecture that includes a path planner, a map-based localizer, and a motion control loop that combines reactive avoidance modules with deliberate goal-based motion. Our architecture achieves a high degree of reliability by maintaining and reasoning about an explicit description of positional uncertainty. We provide two implementations of real-world robot systems that incorporate the Real-World Navigator. The Vagabond Project culminated in a robot that successfully navigated a portion of the Stanford University campus. The Scimmer project developed successful entries for the AIAA 1993 Robotics Competition, placing first in one of the two contests entered.

  5. Aerospace safety advisory panel

    NASA Technical Reports Server (NTRS)

    1994-01-01

    This report from the Aerospace Safety Advisory Panel (ASAP) contains findings, recommendations, and supporting material concerning safety issues with the space station program, the space shuttle program, aeronautics research, and other NASA programs. Section two presents findings and recommendations, section three presents supporting information, and appendices contain data about the panel membership, the NASA response to the March 1993 ASAP report, and a chronology of the panel's activities during the past year.

  6. Ash cloud aviation advisories

    SciTech Connect

    Sullivan, T.J.; Ellis, J.S.; Schalk, W.W.; Nasstrom, J.S.

    1992-06-25

    During the recent (12--22 June 1991) Mount Pinatubo volcano eruptions, the US Air Force Global Weather Central (AFGWC) requested assistance of the US Department of Energy`s Atmospheric Release Advisory Capability (ARAC) in creating volcanic ash cloud aviation advisories for the region of the Philippine Islands. Through application of its three-dimensional material transport and diffusion models using AFGWC meteorological analysis and forecast wind fields ARAC developed extensive analysis and 12-hourly forecast ash cloud position advisories extending to 48 hours for a period of five days. The advisories consisted of ``relative`` ash cloud concentrations in ten layers (surface-5,000 feet, 5,000--10,000 feet and every 10,000 feet to 90,000 feet). The ash was represented as a log-normal size distribution of 10--200 {mu}m diameter solid particles. Size-dependent ``ashfall`` was simulated over time as the eruption clouds dispersed. Except for an internal experimental attempt to model one of the Mount Redoubt, Alaska, eruptions (12/89), ARAC had no prior experience in modeling volcanic eruption ash hazards. For the cataclysmic eruption of 15--16 June, the complex three-dimensional atmospheric structure of the region produced dramatically divergent ash cloud patterns. The large eruptions (> 7--10 km) produced ash plume clouds with strong westward transport over the South China Sea, Southeast Asia, India and beyond. The low-level eruptions (< 7 km) and quasi-steady-state venting produced a plume which generally dispersed to the north and east throughout the support period. Modeling the sequence of eruptions presented a unique challenge. Although the initial approach proved viable, further refinement is necessary and possible. A distinct need exists to quantify eruptions consistently such that ``relative`` ash concentrations relate to specific aviation hazard categories.

  7. Vision assisted aircraft lateral navigation

    NASA Astrophysics Data System (ADS)

    Mohideen, Mohamed Ibrahim; Ramegowda, Dinesh; Seiler, Peter

    2013-05-01

    Surface operation is currently one of the least technologically equipped phases of aircraft operation. The increased air traffic congestion necessitates more aircraft operations in degraded weather and at night. The traditional surface procedures worked well in most cases as airport surfaces have not been congested and airport layouts were less complex. Despite the best efforts of FAA and other safety agencies, runway incursions continue to occur frequently due to incorrect surface operation. Several studies conducted by FAA suggest that pilot induced error contributes significantly to runway incursions. Further, the report attributes pilot's lack of situational awareness - local (e.g., minimizing lateral deviation), global (e.g., traffic in the vicinity) and route (e.g., distance to next turn) - to the problem. An Enhanced Vision System (EVS) is one concept that is being considered to resolve these issues. These systems use on-board sensors to provide situational awareness under poor visibility conditions. In this paper, we propose the use of an Image processing based system to estimate the aircraft position and orientation relative to taxiway markings to use as lateral guidance aid. We estimate aircraft yaw angle and lateral offset from slope of the taxiway centerline and horizontal position of vanishing line. Unlike automotive applications, several cues such as aircraft maneuvers along assigned route with minimal deviations, clear ground markings, even taxiway surface, limited aircraft speed are available and enable us to implement significant algorithm optimizations. We present experimental results to show high precision navigation accuracy with sensitivity analysis with respect to camera mount, optics, and image processing error.

  8. The navigation of homing pigeons: Do they use sun Navigation?

    NASA Technical Reports Server (NTRS)

    Walcott, C.

    1972-01-01

    Experiments to determine the dependence of homing pigeons on the sun as a navigational cue are discussed. Various methods were employed to interrupt the circadian rhythms of the pigeons prior to release. It was determined that the sun may serve as a compass, but that topographic features are more important for navigation. The effects of a magnetic field produced by electric equipment carried by the bird were also investigated. It was concluded that magnetic fields may have a small effect on the homing ability. The exact nature of the homing pigeon's navigational ability is still unknown after years of elaborate experimentation.

  9. The navigation toolkit

    NASA Technical Reports Server (NTRS)

    Rich, William F.; Strom, Stephen W.

    1994-01-01

    This report summarizes the experience of the authors in managing, designing, and implementing an object-oriented applications framework for orbital navigation analysis for the Flight Design and Dynamics Department of the Rockwell Space Operations Company in Houston, in support of the Mission Operations Directorate of NASA's Johnson Space Center. The 8 person year project spanned 1.5 years and produced 30,000 lines of C++ code, replacing 150,000 lines of Fortran/C. We believe that our experience is important because it represents a 'second project' experience and generated real production-quality code - it was not a pilot. The project successfully demonstrated the use of 'continuous development' or rapid prototyping techniques. Use of formal methods and executable models contributed to the quality of the code. Keys to the success of the project were a strong architectural vision and highly skilled workers. This report focuses on process and methodology, and not on a detailed design description of the product. But the true importance of the object-oriented paradigm is its liberation of the developer to focus on the problem rather than the means used to solve the problem.

  10. Titan Probe navigation analysis

    NASA Technical Reports Server (NTRS)

    Vijayaraghavan, A.; Wood, L. J.

    1986-01-01

    In the proposed Cassini mission, a combined Saturn Orbiter/Titan Probe spacecraft will be launched from the Space Shuttle to arrive at Saturn around 2002, by means of a delta-VEGA trajectory. After Saturn-orbit insertion and a pericrone raise maneuver, the probe will be released to enter the Titan atmosphere and impact onto its surface. During its descent phase and impact onto Titan, the probe will maintain radio contact with the orbiter. Since the Titan-probe experimental phase lasts for only about four hours, probe-orbiter geometry and probe-delivery accuracy are critical to successful completion of this part of the mission. From a preliminary navigation analysis for probe delivery accuracy, it seems feasible to deliver the probe within 50 km (1-sigma value) of the desired aim-point in the Titan B-plane. The covariance study, however, clearly indicates the need for optical data, in addition to radio metric data. A Monte Carlo study indicates that a Delta-V capability of 98 m/sec for trajectory correction maneuvers will be sufficient to cover 99 percent of all contingencies during the segment from Saturn-orbit insertion to Titan-probe release.

  11. Lunar Navigation Architecture Design Considerations

    NASA Technical Reports Server (NTRS)

    D'Souza, Christopher; Getchius, Joel; Holt, Greg; Moreau, Michael

    2009-01-01

    The NASA Constellation Program is aiming to establish a long-term presence on the lunar surface. The Constellation elements (Orion, Altair, Earth Departure Stage, and Ares launch vehicles) will require a lunar navigation architecture for navigation state updates during lunar-class missions. Orion in particular has baselined earth-based ground direct tracking as the primary source for much of its absolute navigation needs. However, due to the uncertainty in the lunar navigation architecture, the Orion program has had to make certain assumptions on the capabilities of such architectures in order to adequately scale the vehicle design trade space. The following paper outlines lunar navigation requirements, the Orion program assumptions, and the impacts of these assumptions to the lunar navigation architecture design. The selection of potential sites was based upon geometric baselines, logistical feasibility, redundancy, and abort support capability. Simulated navigation covariances mapped to entry interface flightpath- angle uncertainties were used to evaluate knowledge errors. A minimum ground station architecture was identified consisting of Goldstone, Madrid, Canberra, Santiago, Hartebeeshoek, Dongora, Hawaii, Guam, and Ascension Island (or the geometric equivalent).

  12. 14 CFR 121.389 - Flight navigator and specialized navigation equipment.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Flight navigator and specialized navigation....389 Flight navigator and specialized navigation equipment. (a) No certificate holder may operate an... flight navigator certificate; or (2) Specialized means of navigation approved in accordance with §...

  13. 14 CFR 121.389 - Flight navigator and specialized navigation equipment.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Flight navigator and specialized navigation....389 Flight navigator and specialized navigation equipment. (a) No certificate holder may operate an... flight navigator certificate; or (2) Specialized means of navigation approved in accordance with §...

  14. 14 CFR 121.389 - Flight navigator and specialized navigation equipment.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Flight navigator and specialized navigation....389 Flight navigator and specialized navigation equipment. (a) No certificate holder may operate an... flight navigator certificate; or (2) Specialized means of navigation approved in accordance with §...

  15. 14 CFR 121.389 - Flight navigator and specialized navigation equipment.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 3 2014-01-01 2014-01-01 false Flight navigator and specialized navigation....389 Flight navigator and specialized navigation equipment. (a) No certificate holder may operate an... flight navigator certificate; or (2) Specialized means of navigation approved in accordance with §...

  16. 14 CFR 121.389 - Flight navigator and specialized navigation equipment.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 3 2013-01-01 2013-01-01 false Flight navigator and specialized navigation....389 Flight navigator and specialized navigation equipment. (a) No certificate holder may operate an... flight navigator certificate; or (2) Specialized means of navigation approved in accordance with §...

  17. Navigable networks as Nash equilibria of navigation games

    NASA Astrophysics Data System (ADS)

    Gulyás, András; Bíró, József J.; Kőrösi, Attila; Rétvári, Gábor; Krioukov, Dmitri

    2015-07-01

    Common sense suggests that networks are not random mazes of purposeless connections, but that these connections are organized so that networks can perform their functions well. One function common to many networks is targeted transport or navigation. Here, using game theory, we show that minimalistic networks designed to maximize the navigation efficiency at minimal cost share basic structural properties with real networks. These idealistic networks are Nash equilibria of a network construction game whose purpose is to find an optimal trade-off between the network cost and navigability. We show that these skeletons are present in the Internet, metabolic, English word, US airport, Hungarian road networks, and in a structural network of the human brain. The knowledge of these skeletons allows one to identify the minimal number of edges, by altering which one can efficiently improve or paralyse navigation in the network.

  18. Navigable networks as Nash equilibria of navigation games.

    PubMed

    Gulyás, András; Bíró, József J; Kőrösi, Attila; Rétvári, Gábor; Krioukov, Dmitri

    2015-01-01

    Common sense suggests that networks are not random mazes of purposeless connections, but that these connections are organized so that networks can perform their functions well. One function common to many networks is targeted transport or navigation. Here, using game theory, we show that minimalistic networks designed to maximize the navigation efficiency at minimal cost share basic structural properties with real networks. These idealistic networks are Nash equilibria of a network construction game whose purpose is to find an optimal trade-off between the network cost and navigability. We show that these skeletons are present in the Internet, metabolic, English word, US airport, Hungarian road networks, and in a structural network of the human brain. The knowledge of these skeletons allows one to identify the minimal number of edges, by altering which one can efficiently improve or paralyse navigation in the network. PMID:26138277

  19. Navigable networks as Nash equilibria of navigation games

    PubMed Central

    Gulyás, András; Bíró, József J.; Kőrösi, Attila; Rétvári, Gábor; Krioukov, Dmitri

    2015-01-01

    Common sense suggests that networks are not random mazes of purposeless connections, but that these connections are organized so that networks can perform their functions well. One function common to many networks is targeted transport or navigation. Here, using game theory, we show that minimalistic networks designed to maximize the navigation efficiency at minimal cost share basic structural properties with real networks. These idealistic networks are Nash equilibria of a network construction game whose purpose is to find an optimal trade-off between the network cost and navigability. We show that these skeletons are present in the Internet, metabolic, English word, US airport, Hungarian road networks, and in a structural network of the human brain. The knowledge of these skeletons allows one to identify the minimal number of edges, by altering which one can efficiently improve or paralyse navigation in the network. PMID:26138277

  20. Image processing and applications based on visualizing navigation service

    NASA Astrophysics Data System (ADS)

    Hwang, Chyi-Wen

    2015-07-01

    When facing the "overabundant" of semantic web information, in this paper, the researcher proposes the hierarchical classification and visualizing RIA (Rich Internet Application) navigation system: Concept Map (CM) + Semantic Structure (SS) + the Knowledge on Demand (KOD) service. The aim of the Multimedia processing and empirical applications testing, was to investigating the utility and usability of this visualizing navigation strategy in web communication design, into whether it enables the user to retrieve and construct their personal knowledge or not. Furthermore, based on the segment markets theory in the Marketing model, to propose a User Interface (UI) classification strategy and formulate a set of hypermedia design principles for further UI strategy and e-learning resources in semantic web communication. These research findings: (1) Irrespective of whether the simple declarative knowledge or the complex declarative knowledge model is used, the "CM + SS + KOD navigation system" has a better cognition effect than the "Non CM + SS + KOD navigation system". However, for the" No web design experience user", the navigation system does not have an obvious cognition effect. (2) The essential of classification in semantic web communication design: Different groups of user have a diversity of preference needs and different cognitive styles in the CM + SS + KOD navigation system.

  1. 78 FR 77443 - Electricity Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-23

    ... Electricity Advisory Committee AGENCY: Office of Electricity Delivery and Energy Reliability, Department of... Electricity Advisory Committee (EAC). The Federal Advisory Committee Act (Pub. L. 92-463, 86 Stat. 770.../oe/services/electricity-advisory-committee-eac . FOR FURTHER INFORMATION CONTACT: Matthew...

  2. 78 FR 70317 - Invasive Species Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-25

    ... Office of the Secretary Invasive Species Advisory Committee AGENCY: Office of the Secretary, Interior. ACTION: Notice of Public Meeting (via Teleconference) of the Invasive Species Advisory Committee. SUMMARY... Invasive Species Advisory Committee. The purpose of the Advisory Committee is to provide advice to...

  3. 16 CFR 1018.26 - Advisory functions.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 16 Commercial Practices 2 2013-01-01 2013-01-01 false Advisory functions. 1018.26 Section 1018.26 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION GENERAL ADVISORY COMMITTEE MANAGEMENT Operation of Advisory Committees § 1018.26 Advisory functions. (a) Unless otherwise specifically provided by...

  4. 16 CFR 1018.26 - Advisory functions.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 16 Commercial Practices 2 2010-01-01 2010-01-01 false Advisory functions. 1018.26 Section 1018.26 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION GENERAL ADVISORY COMMITTEE MANAGEMENT Operation of Advisory Committees § 1018.26 Advisory functions. (a) Unless otherwise specifically provided by...

  5. 16 CFR 1018.26 - Advisory functions.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 16 Commercial Practices 2 2012-01-01 2012-01-01 false Advisory functions. 1018.26 Section 1018.26 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION GENERAL ADVISORY COMMITTEE MANAGEMENT Operation of Advisory Committees § 1018.26 Advisory functions. (a) Unless otherwise specifically provided by...

  6. 16 CFR 1018.26 - Advisory functions.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 16 Commercial Practices 2 2014-01-01 2014-01-01 false Advisory functions. 1018.26 Section 1018.26 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION GENERAL ADVISORY COMMITTEE MANAGEMENT Operation of Advisory Committees § 1018.26 Advisory functions. (a) Unless otherwise specifically provided by...

  7. 16 CFR 1018.26 - Advisory functions.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 16 Commercial Practices 2 2011-01-01 2011-01-01 false Advisory functions. 1018.26 Section 1018.26 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION GENERAL ADVISORY COMMITTEE MANAGEMENT Operation of Advisory Committees § 1018.26 Advisory functions. (a) Unless otherwise specifically provided by...

  8. 77 FR 26774 - Homeland Security Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-07

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of partially closed federal advisory committee meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will... number in the subject line of the message. Fax: (202) 282-9207. Mail: Homeland Security Advisory...

  9. 75 FR 53707 - Homeland Security Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-01

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of Open Teleconference Federal Advisory Committee Meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will...: Homeland Security Advisory Council, Department of Homeland Security, Mailstop 0850, 245 Murray Lane,...

  10. 76 FR 55079 - Homeland Security Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-06

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of Open Teleconference Federal Advisory Committee Meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will... subject line of the message. Fax: (202) 282-9207. Mail: Homeland Security Advisory Council, Department...

  11. 77 FR 59627 - Homeland Security Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-28

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of open teleconference federal advisory committee meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will... line of the message. Fax: (202) 282-9207. Mail: Homeland Security Advisory Council, Department...

  12. 75 FR 59278 - Homeland Security Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-27

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of Closed Federal Advisory Committee Meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will meet on... message. Fax: (202) 282-9207. Mail: Homeland Security Advisory Council, Department of Homeland...

  13. 76 FR 81516 - Homeland Security Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-28

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Closed Federal Advisory Committee Meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will meet on January 9... Homeland Security Advisory Council is being published in the Federal Register on December 27, 2011, 14...

  14. 75 FR 26782 - Homeland Security Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-12

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of Open Teleconference Federal Advisory Committee Meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will... (Homeland Security) Review Advisory Committee. DATE: The HSAC conference call will take place from 4 p.m....

  15. 77 FR 55218 - Homeland Security Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-07

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of partially closed Federal Advisory Committee meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will...: Homeland Security Advisory Council, Department of Homeland Security, Mailstop 0450, 245 Murray Lane...

  16. 76 FR 34088 - Homeland Security Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-10

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of Open Teleconference Federal Advisory Committee Meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will... message. Fax: (202) 282-9207. Mail: Homeland Security Advisory Council, Department of Homeland...

  17. 76 FR 58813 - Homeland Security Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-22

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of open teleconference Federal Advisory Committee meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will... message. Fax: (202) 282-9207 Mail: Homeland Security Advisory Council, Department of Homeland...

  18. 77 FR 64532 - Homeland Security Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-22

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of open teleconference Federal advisory committee meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will... in the subject line of the message. Fax: (202) 282-9207 Mail: Homeland Security Advisory...

  19. 75 FR 2880 - Homeland Security Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-19

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Committee management; Notice of partially closed federal advisory committee meeting. SUMMARY: The Homeland Security Advisory.... E-mail: HSAC@dhs.gov . Fax: 202-282-9207. Mail: Homeland Security Advisory Council, 1100...

  20. 39 CFR 310.6 - Advisory opinions.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 39 Postal Service 1 2010-07-01 2010-07-01 false Advisory opinions. 310.6 Section 310.6 Postal... PRIVATE EXPRESS STATUTES § 310.6 Advisory opinions. An advisory opinion on any question arising under this..., 475 L'Enfant Plaza SW., Washington, DC 20260-1100. A numbered series of advisory opinions is...

  1. 39 CFR 310.6 - Advisory opinions.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 39 Postal Service 1 2011-07-01 2011-07-01 false Advisory opinions. 310.6 Section 310.6 Postal... PRIVATE EXPRESS STATUTES § 310.6 Advisory opinions. An advisory opinion on any question arising under this..., 475 L'Enfant Plaza SW., Washington, DC 20260-1100. A numbered series of advisory opinions is...

  2. 19 CFR 210.79 - Advisory opinions.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 19 Customs Duties 3 2012-04-01 2012-04-01 false Advisory opinions. 210.79 Section 210.79 Customs... ADJUDICATION AND ENFORCEMENT Enforcement Procedures and Advisory Opinions § 210.79 Advisory opinions. (a) Advisory opinions. Upon request of any person, the Commission may, upon such investigation as it...

  3. 19 CFR 210.79 - Advisory opinions.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 19 Customs Duties 3 2014-04-01 2014-04-01 false Advisory opinions. 210.79 Section 210.79 Customs... ADJUDICATION AND ENFORCEMENT Enforcement Procedures and Advisory Opinions § 210.79 Advisory opinions. (a) Advisory opinions. Upon request of any person, the Commission may, upon such investigation as it...

  4. 19 CFR 210.79 - Advisory opinions.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 19 Customs Duties 3 2011-04-01 2011-04-01 false Advisory opinions. 210.79 Section 210.79 Customs... ADJUDICATION AND ENFORCEMENT Enforcement Procedures and Advisory Opinions § 210.79 Advisory opinions. (a) Advisory opinions. Upon request of any person, the Commission may, upon such investigation as it...

  5. 39 CFR 310.6 - Advisory opinions.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 39 Postal Service 1 2012-07-01 2012-07-01 false Advisory opinions. 310.6 Section 310.6 Postal... PRIVATE EXPRESS STATUTES § 310.6 Advisory opinions. An advisory opinion on any question arising under this..., 475 L'Enfant Plaza SW., Washington, DC 20260-1100. A numbered series of advisory opinions is...

  6. 39 CFR 310.6 - Advisory opinions.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 39 Postal Service 1 2013-07-01 2013-07-01 false Advisory opinions. 310.6 Section 310.6 Postal... PRIVATE EXPRESS STATUTES § 310.6 Advisory opinions. An advisory opinion on any question arising under this..., 475 L'Enfant Plaza SW., Washington, DC 20260-1100. A numbered series of advisory opinions is...

  7. 19 CFR 210.79 - Advisory opinions.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 3 2010-04-01 2010-04-01 false Advisory opinions. 210.79 Section 210.79 Customs... ADJUDICATION AND ENFORCEMENT Enforcement Procedures and Advisory Opinions § 210.79 Advisory opinions. (a) Advisory opinions. Upon request of any person, the Commission may, upon such investigation as it...

  8. 39 CFR 310.6 - Advisory opinions.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 39 Postal Service 1 2014-07-01 2014-07-01 false Advisory opinions. 310.6 Section 310.6 Postal... PRIVATE EXPRESS STATUTES § 310.6 Advisory opinions. An advisory opinion on any question arising under this..., 475 L'Enfant Plaza SW., Washington, DC 20260-1100. A numbered series of advisory opinions is...

  9. 19 CFR 210.79 - Advisory opinions.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 19 Customs Duties 3 2013-04-01 2013-04-01 false Advisory opinions. 210.79 Section 210.79 Customs... ADJUDICATION AND ENFORCEMENT Enforcement Procedures and Advisory Opinions § 210.79 Advisory opinions. (a) Advisory opinions. Upon request of any person, the Commission may, upon such investigation as it...

  10. SAR and InSAR georeferencing algorithms for inertial navigation systems

    NASA Astrophysics Data System (ADS)

    Greco, M.; Kulpa, K.; Pinelli, G.; Samczynski, P.

    2011-10-01

    This paper presents the concept of Synthetic Aperture Radar (SAR) and Interferemetric SAR (InSAR) georeferencing algorithms dedicated for SAR based augmented Inertial Navigation Architecture (SARINA). The SARINA is a novel concept of the Inertial Navigation System (INS), which utilized the SAR radar as an additional sensor to provide information about the platform trajectory position and compensate an aircraft drift due to Inertial Measurement Unit (IMU) errors, Global Positioning System (GPS) lack of integrity, etc.

  11. Development of a GPS/INS/MAG navigation system and waypoint navigator for a VTOL UAV

    NASA Astrophysics Data System (ADS)

    Meister, Oliver; Mönikes, Ralf; Wendel, Jan; Frietsch, Natalie; Schlaile, Christian; Trommer, Gert F.

    2007-04-01

    Unmanned aerial vehicles (UAV) can be used for versatile surveillance and reconnaissance missions. If a UAV is capable of flying automatically on a predefined path the range of possible applications is widened significantly. This paper addresses the development of the integrated GPS/INS/MAG navigation system and a waypoint navigator for a small vertical take-off and landing (VTOL) unmanned four-rotor helicopter with a take-off weight below 1 kg. The core of the navigation system consists of low cost inertial sensors which are continuously aided with GPS, magnetometer compass, and a barometric height information. Due to the fact, that the yaw angle becomes unobservable during hovering flight, the integration with a magnetic compass is mandatory. This integration must be robust with respect to errors caused by the terrestrial magnetic field deviation and interferences from surrounding electronic devices as well as ferrite metals. The described integration concept with a Kalman filter overcomes the problem that erroneous magnetic measurements yield to an attitude error in the roll and pitch axis. The algorithm provides long-term stable navigation information even during GPS outages which is mandatory for the flight control of the UAV. In the second part of the paper the guidance algorithms are discussed in detail. These algorithms allow the UAV to operate in a semi-autonomous mode position hold as well an complete autonomous waypoint mode. In the position hold mode the helicopter maintains its position regardless of wind disturbances which ease the pilot job during hold-and-stare missions. The autonomous waypoint navigator enable the flight outside the range of vision and beyond the range of the radio link. Flight test results of the implemented modes of operation are shown.

  12. Experiment D009: Simple navigation

    NASA Technical Reports Server (NTRS)

    Silva, R. M.; Jorris, T. R.; Vallerie, E. M., III

    1971-01-01

    Space position-fixing techniques have been investigated by collecting data on the observable phenomena of space flight that could be used to solve the problem of autonomous navigation by the use of optical data and manual computations to calculate the position of a spacecraft. After completion of the developmental and test phases, the product of the experiment would be a manual-optical technique of orbital space navigation that could be used as a backup to onboard and ground-based spacecraft-navigation systems.

  13. NASA tracking ship navigation systems

    NASA Technical Reports Server (NTRS)

    Mckenna, J. J.

    1976-01-01

    The ship position and attitude measurement system that was installed aboard the tracking ship Vanguard is described. An overview of the entire system is given along with a description of how precise time and frequency is utilized. The instrumentation is broken down into its basic components. Particular emphasis is given to the inertial navigation system. Each navigation system used, a mariner star tracker, navigation satellite system, Loran C and OMEGA in conjunction with the inertial system is described. The accuracy of each system is compared along with their limitations.

  14. Navigation/Prop Software Suite

    NASA Technical Reports Server (NTRS)

    Bruchmiller, Tomas; Tran, Sanh; Lee, Mathew; Bucker, Scott; Bupane, Catherine; Bennett, Charles; Cantu, Sergio; Kwong, Ping; Propst, Carolyn

    2012-01-01

    Navigation (Nav)/Prop software is used to support shuttle mission analysis, production, and some operations tasks. The Nav/Prop suite containing configuration items (CIs) resides on IPS/Linux workstations. It features lifecycle documents, and data files used for shuttle navigation and propellant analysis for all flight segments. This suite also includes trajectory server, archive server, and RAT software residing on MCC/Linux workstations. Navigation/Prop represents tool versions established during or after IPS Equipment Rehost-3 or after the MCC Rehost.

  15. Sensitivity of Magnetospheric Multi-Scale (MMS) Mission Navigation Accuracy to Major Error Sources

    NASA Technical Reports Server (NTRS)

    Olson, Corwin; Long, Anne; Car[emter. Russell

    2011-01-01

    The Magnetospheric Multiscale (MMS) mission consists of four satellites flying in formation in highly elliptical orbits about the Earth, with a primary objective of studying magnetic reconnection. The baseline navigation concept is independent estimation of each spacecraft state using GPS pseudorange measurements referenced to an Ultra Stable Oscillator (USO) with accelerometer measurements included during maneuvers. MMS state estimation is performed onboard each spacecraft using the Goddard Enhanced Onboard Navigation System (GEONS), which is embedded in the Navigator GPS receiver. This paper describes the sensitivity of MMS navigation performance to two major error sources: USO clock errors and thrust acceleration knowledge errors.

  16. Bore hole navigator

    SciTech Connect

    Hoffman, G.J.

    1987-09-29

    A bore hole navigator is described comprising a two axis platform for lowering down a bore hole on a cable with its longitudinal axis parallel to the local bore hole direction. The two axis platform has an outer gimbal, bearing supported on the outer gimbal axis for rotation about the longitudinal axis of the platform, and an inner gimbal axis orthogonal the the outer gimbal axis. The inner gimbal axis has multiple axis segments spaced along the longitudinal axis of the platform and each bearing supported on the outer gimbal. The inner gimbal axis segment has a two axis gyro mounted thereon with its spin axis orthogonal to the respective inner gimbal axis segment, a first gyro sensitive axis parallel to the respective inner gimbal axis segment and a second gyro sensitive axis orthogonal to the spin axis. The second inner gimbal axis segment has a pitch torquer thereon operative to provide a controllable torque about the respective inner gimbal axis segment. The third inner gimbal axis segment has a pitch resolver thereon operative to measure rotation of the respective inner gimbal axis segment with respect to the outer gimbal. The first, second and third inner gimbal axis segments are coupled to rotate together. The outer gimbal has a yaw torquer thereon to provide a controllable torque about the outer gimbal axis, and a yaw resolver thereon to measure rotation of the outer gimbal about the outer gimbal axis. The outer gimbal also has a single axis accelerometer therein having its sensitive axis orthogonal to the outer gimbal axis and the inner gimbal axis segments.

  17. Navigating "Assisted Dying".

    PubMed

    Schipper, Harvey

    2016-02-01

    Carter is a bellwether decision, an adjudication on a narrow point of law whose implications are vast across society, and whose impact may not be realized for years. Coupled with Quebec's Act Respecting End-of-life Care it has sharply changed the legal landscape with respect to actively ending a person's life. "Medically assisted dying" will be permitted under circumstances, and through processes, which have yet to be operationally defined. This decision carries with it moral assumptions, which mean that it will be difficult to reach a unifying consensus. For some, the decision and Act reflect a modern acknowledgement of individual autonomy. For others, allowing such acts is morally unspeakable. Having opened the Pandora's Box, the question becomes one of navigating a tolerable societal path. I believe it is possible to achieve a workable solution based on the core principle that "medically assisted dying" should be a very rarely employed last option, subject to transparent ongoing review, specifically as to why it was deemed necessary. My analysis is based on 1. The societal conditions in which have fostered demand for "assisted dying", 2. Actions in other jurisdictions, 3. Carter and Quebec Bill 52, 4. Political considerations, 5. Current medical practice. Leading to a series of recommendations regarding. 1. Legislation and regulation, 2. The role of professional regulatory agencies, 3. Medical professions education and practice, 4. Public education, 5. Health care delivery and palliative care. Given the burden of public opinion, and the legal steps already taken, a process for assisted-dying is required. However, those legal and regulatory steps should only be considered a necessary and defensive first step in a two stage process. The larger goal, the second step, is to drive the improvement of care, and thus minimize assisted-dying. PMID:27169205

  18. Wellborne inertial navigation system

    SciTech Connect

    Kelsey, J.R.

    1983-01-01

    A phototype wireline tool which includes a downhole inertial platform and a surface computer to spatially map a well is described. The hardware consists of a single-gimbaled inertial platform with accelerometers and gyros to obtain three-axis motion information. The gyroscope and accelerometer outputs are transmitted to a computer at the surface which calculates probe attitude relative to north, east, and vertical. Double integration of the accelerometer data provides the position information. A conventional 7-conductor wireline is used for the system data transmission. System accuracy is enhanced by advances made in the computer software which processes the data received from the tool. The software uses statistical sampling estimation to obtain optimal estimates of the system errors. Measurement errors are determined by periodically stopping the tool during the logging procedure and observing the indicated velocity measurements. This procedure, known as Kalman filtering, results in increased accuracy of the data. Present mapping systems have an X-Y-Z location accuracy of +- 100 to +- 200 feet for a typical well depth of 10,000 feet. Test results show that the new system is accurate to about +- 1 foot per 1000 feet of well depth. Unlike conventional systems, the inertial navigator does not require any sort of projection of the cable length (which may not be accurately known). Also this system provides continuous data throughout the wellbore and logging speeds on the order of 10 ft/sec appear possible. The hardware and software associated with this mapping system are described and the recent field test results are reported.

  19. NES: How to Navigate the Virtual Campus

    NASA Video Gallery

    This video describes how to navigate the NASA Explorer Schools public website. Information includes descriptions of the left navigation, using the breadcrumbs, understanding the various announcemen...

  20. Wikipedia Entries as a Source of CAR Navigation Landmarks

    NASA Astrophysics Data System (ADS)

    Binski, N.; Zhang, L.; Dalyot, S.

    2016-06-01

    Car navigation system devices provide today with an easy and simple solution to the basic concept of reaching a destination. Although these systems usually achieve this goal, they still deliver a limited and poor sequence of instructions that do not consider the human nature of using landmarks during wayfinding. This research paper addresses the concept of enriching navigation route instructions by adding supplementary route information in the form of landmarks. We aim at using a contributed source of landmarks information, which is easy to access, available, show high update rate, and have a large scale of information. For this, Wikipedia was chosen, since it represents the world's largest free encyclopaedia that includes information about many spatial entities. A survey and classification of available landmarks is implemented, coupled with ranking algorithms based on the entries' categories and attributes. These are aimed at retrieving the most relevant landmark information required that are valuable for the enrichment of a specific navigation route. The paper will present this methodology, together with examples and results, showing the feasibility of using this concept and its potential of enriching navigation processes.

  1. 78 FR 295 - Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-03

    ... of the Secretary Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed... discussions of classified information relating to DIA's intelligence operations including its support to... the Advisory Board to discuss DIA operations and capabilities in support of current...

  2. 76 FR 70425 - Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-14

    ... Office of the Secretary Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board... discussions of classified information relating to DIA's intelligence operations including its support to... Advisory Board to discuss DIA operations and capabilities in support of current intelligence...

  3. 77 FR 62222 - Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-12

    ... of the Secretary Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed... discussions of classified information relating to DIA's intelligence operations including its support to... the Advisory Board to discuss DIA operations and capabilities in support of current...

  4. 77 FR 2277 - Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-17

    ... of the Secretary Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed... discussions of classified information relating to DIA's intelligence operations including its support to... Advisory Board to discuss DIA operations and capabilities in support of current intelligence...

  5. 76 FR 52016 - NASA International Space Station Advisory Committee and the Aerospace Safety Advisory Panel; Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-19

    ... SPACE ADMINISTRATION NASA International Space Station Advisory Committee and the Aerospace Safety... International Space Station Advisory Committee and the Aerospace Safety Advisory Panel. The purpose of this... consideration by NASA for Commercial Resupply Services for the International Space Station (ISS),...

  6. 77 FR 55863 - NASA Advisory Council; Science Committee; Earth Science Subcommittee; Applied Sciences Advisory...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-11

    ... SPACE ADMINISTRATION NASA Advisory Council; Science Committee; Earth Science Subcommittee; Applied Sciences Advisory Group Meeting AGENCY: National Aeronautics and Space Administration. ACTION: Notice of... Aeronautics and Space Administration (NASA) announces a meeting of the Applied Science Advisory Group....

  7. 75 FR 22757 - Federal Advisory Committee; Army Education Advisory Committee; Charter Renewal

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-30

    ... of the Secretary Federal Advisory Committee; Army Education Advisory Committee; Charter Renewal... renewing the charter for the Army Education Advisory Committee (hereafter referred to as the Committee... include the U.S. Army's joint professional military education programs, educational policies,...

  8. Navigating the Rockets Educator Guide

    NASA Video Gallery

    In this brief video overview, learn how to navigate the Rockets Educator Guide. Get a glimpse of the resources available in the guide, including a pictorial history, an overview of the physics cont...

  9. Almanac services for celestial navigation

    NASA Astrophysics Data System (ADS)

    Nelmes, S.; Whittaker, J.

    2015-08-01

    Celestial navigation remains a vitally important back up to Global Navigation Satellite Systems (GNSS) and relies on the use of almanac services. HM Nautical Almanac Office (HMNAO) provides a number of these services. The printed book, The Nautical Almanac, produced yearly and now available as an electronic publication, is continuously being improved, making use of the latest ideas and ephemerides to provide the user with their required data. HMNAO also produces NavPac, a software package that assists the user in calculating their position as well as providing additional navigational and astronomical tools. A new version of NavPac will be released in 2015 that will improve the user experience. The development of applications for mobile devices is also being considered. HMNAO continues to combine the latest improvements and theories of astrometry with the creation of books and software that best meet the needs of celestial navigation users.

  10. Orion Cislunar Guidance and Navigation

    NASA Technical Reports Server (NTRS)

    D'Souza, Christopher; Crain, Timothy; Clark, Fred C.

    2007-01-01

    The Orion vehicle is being designed to provide nominal crew transport to the lunar transportation stack in low Earth orbit, crew abort prior during transit to the moon, and crew return to Earth once lunar orbit is achieved. Design of guidance and navigation algorithms to perform maneuvers in support of these functions is dependent on the support provided by navigation infrastructure, the performance of the onboard GN&C system, and the choice of trajectory maneuver methodology for outbound and return mission phases. This paper documents the preliminary integrated analyses performed by members of the Orion Orbit GN&C System team investigating the navigation update accuracy of a modern equivalent to the Apollo era ground tracking network and the expected onboard dispersion and navigation errors during a lunar mission using a linear covariance error analysis technique.

  11. Potential applications of satellite navigation

    NASA Astrophysics Data System (ADS)

    Schaenzer, G.

    The applicability of Navstar GPS to civil air navigation is discussed. The accuracy of current air-navigation systems is reviewed; the basic principle and accuracy of GPS navigation are characterized; the relatively low cost of GPS receiving equipment is pointed out; and particular attention is given to hybrid systems combining GPS with inertial navigation. It is predicted that CAT III landings will be possible using such hybrid systems when the GPS satellites are fully deployed, even without access to the military GPS code. Techniques for GPS-based precision landings, reduced-noise landings, landings on parallel runways, control of taxiing maneuvers, and aircraft-based geodetic measurements are briefly described and illustrated with diagrams.

  12. SEXTANT: Navigating by Cosmic Beacon

    NASA Video Gallery

    Imagine a technology that would allow space travelers to transmit gigabytes of data per second over interplanetary distances or to navigate to Mars and beyond using powerful beams of light emanatin...

  13. Space Mobile Network: A Near Earth Communication and Navigation Architecture

    NASA Technical Reports Server (NTRS)

    Israel, Dave J.; Heckler, Greg; Menrad, Robert J.

    2016-01-01

    This paper describes a Space Mobile Network architecture, the result of a recently completed NASA study exploring architectural concepts to produce a vision for the future Near Earth communications and navigation systems. The Space Mobile Network (SMN) incorporates technologies, such as Disruption Tolerant Networking (DTN) and optical communications, and new operations concepts, such as User Initiated Services, to provide user services analogous to a terrestrial smartphone user. The paper will describe the SMN Architecture, envisioned future operations concepts, opportunities for industry and international collaboration and interoperability, and technology development areas and goals.

  14. 2D/3D Synthetic Vision Navigation Display

    NASA Technical Reports Server (NTRS)

    Prinzel, Lawrence J., III; Kramer, Lynda J.; Arthur, J. J., III; Bailey, Randall E.; Sweeters, jason L.

    2008-01-01

    Flight-deck display software was designed and developed at NASA Langley Research Center to provide two-dimensional (2D) and three-dimensional (3D) terrain, obstacle, and flight-path perspectives on a single navigation display. The objective was to optimize the presentation of synthetic vision (SV) system technology that permits pilots to view multiple perspectives of flight-deck display symbology and 3D terrain information. Research was conducted to evaluate the efficacy of the concept. The concept has numerous unique implementation features that would permit enhanced operational concepts and efficiencies in both current and future aircraft.

  15. Retrodirective-Optical-Transponder Concept

    NASA Technical Reports Server (NTRS)

    Dickinson, R. M.

    1985-01-01

    Pointing errors and optical imperfections automatically corrected. Coherent optical transponder employs nearly-degenerate four-wave mixing in nonlinear optical element to produce signal traveling back toward source of incoming signal. Return signal modulated for communication, navigation, data transmission, tracking, and identification. When perfected concept finds important civilian and military applications in line-of-sight tracking, communication and identification.

  16. Visual Navigation in Nocturnal Insects.

    PubMed

    Warrant, Eric; Dacke, Marie

    2016-05-01

    Despite their tiny eyes and brains, nocturnal insects have evolved a remarkable capacity to visually navigate at night. Whereas some use moonlight or the stars as celestial compass cues to maintain a straight-line course, others use visual landmarks to navigate to and from their nest. These impressive abilities rely on highly sensitive compound eyes and specialized visual processing strategies in the brain. PMID:27053732

  17. The navigation of space probes

    NASA Technical Reports Server (NTRS)

    Fliegel, H. F.; Ohandley, D. A.; Zielenbach, J. W.

    1974-01-01

    A new navigational method combining electronic measurement procedures and celestial mechanics makes it possible to conduct a space probe very close to a desired point in the neighborhood of a remote planet. Approaches for the determination of the position of the space probe in space are discussed, giving attention to the effects of errors in the employed data. The application of the navigational methods in a number of space missions is also considered.

  18. FLASH LIDAR Based Relative Navigation

    NASA Technical Reports Server (NTRS)

    Brazzel, Jack; Clark, Fred; Milenkovic, Zoran

    2014-01-01

    Relative navigation remains the most challenging part of spacecraft rendezvous and docking. In recent years, flash LIDARs, have been increasingly selected as the go-to sensors for proximity operations and docking. Flash LIDARS are generally lighter and require less power that scanning Lidars. Flash LIDARs do not have moving parts, and they are capable of tracking multiple targets as well as generating a 3D map of a given target. However, there are some significant drawbacks of Flash Lidars that must be resolved if their use is to be of long-term significance. Overcoming the challenges of Flash LIDARs for navigation-namely, low technology readiness level, lack of historical performance data, target identification, existence of false positives, and performance of vision processing algorithms as intermediaries between the raw sensor data and the Kalman filter-requires a world-class testing facility, such as the Lockheed Martin Space Operations Simulation Center (SOSC). Ground-based testing is a critical step for maturing the next-generation flash LIDAR-based spacecraft relative navigation. This paper will focus on the tests of an integrated relative navigation system conducted at the SOSC in January 2014. The intent of the tests was to characterize and then improve the performance of relative navigation, while addressing many of the flash LIDAR challenges mentioned above. A section on navigation performance and future recommendation completes the discussion.

  19. Airline advisory nursing.

    PubMed

    Mark, J A

    1994-02-01

    The commercial airliner cabin is a specialized environment, usually pressurized to an equivalent of 2,438-meter pressure altitude. Such an altitude can adversely affect people prone to hypoxia. Preflight attention to this and other problems by an advisory nurse (AN) can minimize or prevent in-flight emergencies. The AN can also facilitate travel for passengers with medical needs by being familiar with airline policies and federal regulations. By educating the patient/passenger, health care providers and airline personnel, the safety, comfort and dignity of all concerned can be maximized. PMID:10131607

  20. Navigation and control considerations for space based orbital maneuvering systems

    NASA Technical Reports Server (NTRS)

    Brandon, L.

    1984-01-01

    Various design areas of concern in navigation and control of space-based orbital maneuvering systems such as those on the Orbiter are discussed, with note taken of approach maneuvers. Design problems occur in the areas of storage modes, sensing, activation methods, navigation, target/mission determination, rendezvous and docking schemes, reliability, and commonality between low- and high-energy maneuvering vehicles. Navigation may be in autonomous or nonautonomous modes and may include ground-baed computations and commands via the TDRSS or NORAD systems. Autonomous operations would interface with the GPS. All the concepts discussed are significant for the planned orbital transfer and orbital maneuvering vehicles, which would be used to place satellites in orbit and repair or retrieve them.

  1. Mars rover concept development

    NASA Technical Reports Server (NTRS)

    Mctamaney, Louis S.; Douglas, Barry D.; Harmon, Scott Y.

    1989-01-01

    A structured study effort to develop an extensive, innovative set of mobility and navigation concepts for a planetary exploration vehicle along with the concomitant value system and evaluation tools is presented. A further objective is to submit these concepts to a rigorous, structured evaluation process to derive the most promising candidate systems. To support the evaluation process, a three-layer computer model of the Martian surface was developed, based on the 1/64 deg Digital Elevation Model (DEM) of Mars. Local surface roughness based on measured Martian slope distribution and power spectral density was superimposed on the DEM, and rocks based on Moore's distribution model were added. To assess performance, selected concepts were modeled using DADS, and simulations were run with the vehicle traversing the Martian surface model, including one-meter-high vertical steps and one-meter-wide crevasses. The design details of three promising candidate systems are presented, along with the discussion of their evolution with some recommendations.

  2. Optical Navigation Image of Ganymede

    NASA Technical Reports Server (NTRS)

    1996-01-01

    NASA's Galileo spacecraft, now in orbit around Jupiter, returned this optical navigation image June 3, 1996, showing that the spacecraft is accurately targeted for its first flyby of the giant moon Ganymede on June 27. The missing data in the frame is the result of a special editing feature recently added to the spacecraft's computer to transmit navigation images more quickly. This is first in a series of optical navigation frames, highly edited onboard the spacecraft, that will be used to fine-tune the spacecraft's trajectory as Galileo approaches Ganymede. The image, used for navigation purposes only, is the product of new computer processing capabilities on the spacecraft that allow Galileo to send back only the information required to show the spacecraft is properly targeted and that Ganymede is where navigators calculate it to be. 'This navigation image is totally different from the pictures we'll be taking for scientific study of Ganymede when we get close to it later this month,' said Galileo Project Scientist Dr. Torrence Johnson. On June 27, Galileo will fly just 844 kilometers (524 miles) above Ganymede and return the most detailed, full-frame, high-resolution images and other measurements of the satellite ever obtained. Icy Ganymede is the largest moon in the solar system and three-quarters the size of Mars. It is one of the four large Jovian moons that are special targets of study for the Galileo mission. Of the more than 5 million bits contained in a single image, Galileo performed on-board editing to send back a mere 24,000 bits containing the essential information needed to assure proper targeting. Only the light-to-dark transitions of the crescent Ganymede and reference star locations were transmitted to Earth. The navigation image was taken from a distance of 9.8 million kilometers (6.1 million miles). On June 27th, the spacecraft will be 10,000 times closer to Ganymede.

  3. 46 CFR 120.420 - Navigation lights.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 4 2011-10-01 2011-10-01 false Navigation lights. 120.420 Section 120.420 Shipping... Systems § 120.420 Navigation lights. All vessels must have navigation lights that are in compliance with... than 19.8 meters (65 feet) in length must also have navigation lights that meet UL 1104,...

  4. 46 CFR 183.420 - Navigation lights.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 7 2011-10-01 2011-10-01 false Navigation lights. 183.420 Section 183.420 Shipping...) ELECTRICAL INSTALLATION Lighting Systems § 183.420 Navigation lights. All vessels must have navigation lights..., except that a vessel of more than 19.8 meters (65 feet) in length must also have navigation lights...

  5. 46 CFR 183.420 - Navigation lights.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 7 2012-10-01 2012-10-01 false Navigation lights. 183.420 Section 183.420 Shipping...) ELECTRICAL INSTALLATION Lighting Systems § 183.420 Navigation lights. All vessels must have navigation lights..., except that a vessel of more than 19.8 meters (65 feet) in length must also have navigation lights...

  6. 46 CFR 120.420 - Navigation lights.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 4 2013-10-01 2013-10-01 false Navigation lights. 120.420 Section 120.420 Shipping... Systems § 120.420 Navigation lights. All vessels must have navigation lights that are in compliance with... than 19.8 meters (65 feet) in length must also have navigation lights that meet UL 1104,...

  7. 46 CFR 183.420 - Navigation lights.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 7 2013-10-01 2013-10-01 false Navigation lights. 183.420 Section 183.420 Shipping...) ELECTRICAL INSTALLATION Lighting Systems § 183.420 Navigation lights. All vessels must have navigation lights..., except that a vessel of more than 19.8 meters (65 feet) in length must also have navigation lights...

  8. 46 CFR 120.420 - Navigation lights.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false Navigation lights. 120.420 Section 120.420 Shipping... Systems § 120.420 Navigation lights. All vessels must have navigation lights that are in compliance with... than 19.8 meters (65 feet) in length must also have navigation lights that meet UL 1104,...

  9. 46 CFR 183.420 - Navigation lights.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 7 2014-10-01 2014-10-01 false Navigation lights. 183.420 Section 183.420 Shipping...) ELECTRICAL INSTALLATION Lighting Systems § 183.420 Navigation lights. All vessels must have navigation lights..., except that a vessel of more than 19.8 meters (65 feet) in length must also have navigation lights...

  10. 46 CFR 120.420 - Navigation lights.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false Navigation lights. 120.420 Section 120.420 Shipping... Systems § 120.420 Navigation lights. All vessels must have navigation lights that are in compliance with... than 19.8 meters (65 feet) in length must also have navigation lights that meet UL 1104,...

  11. 46 CFR 120.420 - Navigation lights.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Navigation lights. 120.420 Section 120.420 Shipping... Systems § 120.420 Navigation lights. All vessels must have navigation lights that are in compliance with... than 19.8 meters (65 feet) in length must also have navigation lights that meet UL 1104,...

  12. 46 CFR 183.420 - Navigation lights.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Navigation lights. 183.420 Section 183.420 Shipping...) ELECTRICAL INSTALLATION Lighting Systems § 183.420 Navigation lights. All vessels must have navigation lights..., except that a vessel of more than 19.8 meters (65 feet) in length must also have navigation lights...

  13. Navigation in GPS Challenged Environments Based Upon Ranging Imagery

    NASA Astrophysics Data System (ADS)

    Markiel, J. N. Nikki

    , particularly with respect to 2D datasets, has long been a difficult proposition when attempting to link overlapping data sets. 2) Secondly, an innovative methodology to segment a set of discrete 3D range measurements is presented. 3) Finally, the research develops a methodology to support navigation in environments previously infeasible for autonomous vehicles due to lack of position updates. This problem is well known in the navigation field; while Global Positioning Systems (GPS) provide excellent positional information, their signals can become unavailable in a wide variety of conditions. Current research in robotic manipulation rarely addresses the concept of operations within an unknown environment, and virtually never attempts navigation in the presence of non-static objects. The ability to extend the navigation solution beyond these limitations extends the possibilities for autonomous navigation and advances the field of navigation. The current algorithm cannot provide a navigation solution for an indefinite time period; it can extend the feasible extent of navigation without benefit of GPS positioning. While this research could not possibly claim to solve the problem of autonomous navigation, it represents an important step towards the vision of developing a machine to emulate cognitive navigation.

  14. 33 CFR 66.10-15 - Aids to navigation.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Aids to navigation. 66.10-15 Section 66.10-15 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY AIDS TO NAVIGATION PRIVATE AIDS TO NAVIGATION Uniform State Waterway Marking System § 66.10-15 Aids to navigation....

  15. 33 CFR 66.10-15 - Aids to navigation.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 1 2012-07-01 2012-07-01 false Aids to navigation. 66.10-15 Section 66.10-15 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY AIDS TO NAVIGATION PRIVATE AIDS TO NAVIGATION Uniform State Waterway Marking System § 66.10-15 Aids to navigation....

  16. 33 CFR 66.10-15 - Aids to navigation.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 1 2013-07-01 2013-07-01 false Aids to navigation. 66.10-15 Section 66.10-15 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY AIDS TO NAVIGATION PRIVATE AIDS TO NAVIGATION Uniform State Waterway Marking System § 66.10-15 Aids to navigation....

  17. 33 CFR 66.10-15 - Aids to navigation.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 1 2011-07-01 2011-07-01 false Aids to navigation. 66.10-15 Section 66.10-15 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY AIDS TO NAVIGATION PRIVATE AIDS TO NAVIGATION Uniform State Waterway Marking System § 66.10-15 Aids to navigation....

  18. 33 CFR 66.10-15 - Aids to navigation.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 1 2014-07-01 2014-07-01 false Aids to navigation. 66.10-15 Section 66.10-15 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY AIDS TO NAVIGATION PRIVATE AIDS TO NAVIGATION Uniform State Waterway Marking System § 66.10-15 Aids to navigation....

  19. 33 CFR 66.10-35 - Navigation lights.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Navigation lights. 66.10-35 Section 66.10-35 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY AIDS TO NAVIGATION PRIVATE AIDS TO NAVIGATION Uniform State Waterway Marking System § 66.10-35 Navigation lights....

  20. Modelling group navigation: transitive social structures improve navigational performance

    PubMed Central

    Flack, Andrea; Biro, Dora; Guilford, Tim; Freeman, Robin

    2015-01-01

    Collective navigation demands that group members reach consensus on which path to follow, a task that might become more challenging when the group's members have different social connections. Group decision-making mechanisms have been studied successfully in the past using individual-based modelling, although many of these studies have neglected the role of social connections between the group's interacting members. Nevertheless, empirical studies have demonstrated that individual recognition, previous shared experiences and inter-individual familiarity can influence the cohesion and the dynamics of the group as well as the relative spatial positions of specific individuals within it. Here, we use models of collective motion to study the impact of social relationships on group navigation by introducing social network structures into a model of collective motion. Our results show that groups consisting of equally informed individuals achieve the highest level of accuracy when they are hierarchically organized with the minimum number of preferred connections per individual. We also observe that the navigational accuracy of a group will depend strongly on detailed aspects of its social organization. More specifically, group navigation does not only depend on the underlying social relationships, but also on how much weight leading individuals put on following others. Also, we show that groups with certain social structures can compensate better for an increased level of navigational error. The results have broader implications for studies on collective navigation and motion because they show that only by considering a group's social system can we fully elucidate the dynamics and advantages of joint movements. PMID:26063820

  1. Modelling group navigation: transitive social structures improve navigational performance.

    PubMed

    Flack, Andrea; Biro, Dora; Guilford, Tim; Freeman, Robin

    2015-07-01

    Collective navigation demands that group members reach consensus on which path to follow, a task that might become more challenging when the group's members have different social connections. Group decision-making mechanisms have been studied successfully in the past using individual-based modelling, although many of these studies have neglected the role of social connections between the group's interacting members. Nevertheless, empirical studies have demonstrated that individual recognition, previous shared experiences and inter-individual familiarity can influence the cohesion and the dynamics of the group as well as the relative spatial positions of specific individuals within it. Here, we use models of collective motion to study the impact of social relationships on group navigation by introducing social network structures into a model of collective motion. Our results show that groups consisting of equally informed individuals achieve the highest level of accuracy when they are hierarchically organized with the minimum number of preferred connections per individual. We also observe that the navigational accuracy of a group will depend strongly on detailed aspects of its social organization. More specifically, group navigation does not only depend on the underlying social relationships, but also on how much weight leading individuals put on following others. Also, we show that groups with certain social structures can compensate better for an increased level of navigational error. The results have broader implications for studies on collective navigation and motion because they show that only by considering a group's social system can we fully elucidate the dynamics and advantages of joint movements. PMID:26063820

  2. Structure and navigation for electronic publishing

    NASA Astrophysics Data System (ADS)

    Tillinghast, John; Beretta, Giordano B.

    1998-01-01

    The sudden explosion of the World Wide Web as a new publication medium has given a dramatic boost to the electronic publishing industry, which previously was a limited market centered around CD-ROMs and on-line databases. While the phenomenon has parallels to the advent of the tabloid press in the middle of last century, the electronic nature of the medium brings with it the typical characteristic of 4th wave media, namely the acceleration in its propagation speed and the volume of information. Consequently, e-publications are even flatter than print media; Shakespeare's Romeo and Juliet share the same computer screen with a home-made plagiarized copy of Deep Throat. The most touted tool for locating useful information on the World Wide Web is the search engine. However, due to the medium's flatness, sought information is drowned in a sea of useless information. A better solution is to build tools that allow authors to structure information so that it can easily be navigated. We experimented with the use of ontologies as a tool to formulate structures for information about a specific topic, so that related concepts are placed in adjacent locations and can easily be navigated using simple and ergonomic user models. We describe our effort in building a World Wide Web based photo album that is shared among a small network of people.

  3. Autonomous navigation system. [gyroscopic pendulum for air navigation

    NASA Technical Reports Server (NTRS)

    Merhav, S. J. (Inventor)

    1981-01-01

    An inertial navigation system utilizing a servo-controlled two degree of freedom pendulum to obtain specific force components in the locally level coordinate system is described. The pendulum includes a leveling gyroscope and an azimuth gyroscope supported on a two gimbal system. The specific force components in the locally level coordinate system are converted to components in the geographical coordinate system by means of a single Euler transformation. The standard navigation equations are solved to determine longitudinal and lateral velocities. Finally, vehicle position is determined by a further integration.

  4. Mission Operations and Navigation Toolkit Environment

    NASA Technical Reports Server (NTRS)

    Sunseri, Richard F.; Wu, Hsi-Cheng; Hanna, Robert A.; Mossey, Michael P.; Duncan, Courtney B.; Evans, Scott E.; Evans, James R.; Drain, Theodore R.; Guevara, Michelle M.; Martin Mur, Tomas J.; Attiyah, Ahlam A.

    2009-01-01

    MONTE (Mission Operations and Navigation Toolkit Environment) Release 7.3 is an extensible software system designed to support trajectory and navigation analysis/design for space missions. MONTE is intended to replace the current navigation and trajectory analysis software systems, which, at the time of this reporting, are used by JPL's Navigation and Mission Design section. The software provides an integrated, simplified, and flexible system that can be easily maintained to serve the needs of future missions in need of navigation services.

  5. Concept Formation.

    ERIC Educational Resources Information Center

    Vaidya, Narendera

    This document, published in India by the Regional College of Education, deals with 13 subjects: the tough context (thinking), definitions of concept, functions of concept, the process of concept formation, discriminant learning, mediation process, second signalling system, factors affecting concept formation, studies in concept formation, the…

  6. 14 CFR 125.267 - Flight navigator and long-range navigation equipment.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Flight navigator and long-range navigation... Requirements § 125.267 Flight navigator and long-range navigation equipment. (a) No certificate holder may... current flight navigator certificate; or (2) Two independent, properly functioning, and approved...

  7. 14 CFR 125.267 - Flight navigator and long-range navigation equipment.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Flight navigator and long-range navigation... Requirements § 125.267 Flight navigator and long-range navigation equipment. (a) No certificate holder may... current flight navigator certificate; or (2) Two independent, properly functioning, and approved...

  8. 14 CFR 125.267 - Flight navigator and long-range navigation equipment.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 3 2013-01-01 2013-01-01 false Flight navigator and long-range navigation... Requirements § 125.267 Flight navigator and long-range navigation equipment. (a) No certificate holder may... current flight navigator certificate; or (2) Two independent, properly functioning, and approved...

  9. 14 CFR 125.267 - Flight navigator and long-range navigation equipment.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 3 2014-01-01 2014-01-01 false Flight navigator and long-range navigation... Requirements § 125.267 Flight navigator and long-range navigation equipment. (a) No certificate holder may... current flight navigator certificate; or (2) Two independent, properly functioning, and approved...

  10. 14 CFR 125.267 - Flight navigator and long-range navigation equipment.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Flight navigator and long-range navigation... Requirements § 125.267 Flight navigator and long-range navigation equipment. (a) No certificate holder may...-range means of navigation which enable a reliable determination to be made of the position of...

  11. Unified Simulation and Analysis Framework for Deep Space Navigation Design

    NASA Technical Reports Server (NTRS)

    Anzalone, Evan; Chuang, Jason; Olsen, Carrie

    2013-01-01

    As the technology that enables advanced deep space autonomous navigation continues to develop and the requirements for such capability continues to grow, there is a clear need for a modular expandable simulation framework. This tool's purpose is to address multiple measurement and information sources in order to capture system capability. This is needed to analyze the capability of competing navigation systems as well as to develop system requirements, in order to determine its effect on the sizing of the integrated vehicle. The development for such a framework is built upon Model-Based Systems Engineering techniques to capture the architecture of the navigation system and possible state measurements and observations to feed into the simulation implementation structure. These models also allow a common environment for the capture of an increasingly complex operational architecture, involving multiple spacecraft, ground stations, and communication networks. In order to address these architectural developments, a framework of agent-based modules is implemented to capture the independent operations of individual spacecraft as well as the network interactions amongst spacecraft. This paper describes the development of this framework, and the modeling processes used to capture a deep space navigation system. Additionally, a sample implementation describing a concept of network-based navigation utilizing digitally transmitted data packets is described in detail. This developed package shows the capability of the modeling framework, including its modularity, analysis capabilities, and its unification back to the overall system requirements and definition.

  12. Biomimetic MEMS sensor array for navigation and water detection

    NASA Astrophysics Data System (ADS)

    Futterknecht, Oliver; Macqueen, Mark O.; Karman, Salmah; Diah, S. Zaleha M.; Gebeshuber, Ille C.

    2013-05-01

    The focus of this study is biomimetic concept development for a MEMS sensor array for navigation and water detection. The MEMS sensor array is inspired by abstractions of the respective biological functions: polarized skylight-based navigation sensors in honeybees (Apis mellifera) and the ability of African elephants (Loxodonta africana) to detect water. The focus lies on how to navigate to and how to detect water sources in desert-like or remote areas. The goal is to develop a sensor that can provide both, navigation clues and help in detecting nearby water sources. We basically use the information provided by the natural polarization pattern produced by the sunbeams scattered within the atmosphere combined with the capability of the honeybee's compound eye to extrapolate the navigation information. The detection device uses light beam reactive MEMS, which are capable to detect the skylight polarization based on the Rayleigh sky model. For water detection we present various possible approaches to realize the sensor. In the first approach, polarization is used: moisture saturated areas near ground have a small but distinctively different effect on scattering and polarizing light than less moist ones. Modified skylight polarization sensors (Karman, Diah and Gebeshuber, 2012) are used to visualize this small change in scattering. The second approach is inspired by the ability of elephants to detect infrasound produced by underground water reservoirs, and shall be used to determine the location of underground rivers and visualize their exact routes.

  13. Learned navigation paths for a robot in unexplored terrain

    SciTech Connect

    Iyengar, S.S.; Jorgensen, C.C.; Rao, S.V.N.; Weisbin, C.R.

    1985-01-01

    Finding optimal paths for robot navigation in known terrain has been studied for some time but, in many important situations, a robot would be required to navigate in completely new or partially explored terrain. We propose a method of robot navigation which requires no pre-learned model, makes maximal use of available information, records and synthesizes information from multiple journeys, and contains concepts of learning that allow for continuous transition from local to global path optimality. The model of the terrain consists of a spatial graph and a Voronoi diagram. Using acquired sensor data, polygonal boundaries containing perceived obstacles shrink to approximate the actual obstacles surfaces, free space for transit is correspondingly enlarged, and additional nodes and edges are recorded based on path intersections and stop points. Navigation planning is gradually accelerated with experience since improved global map information minimizes the need for further sensor data acquisition. Our method currently assumes obstacle locations are unchanging navigation can be successfully conducted using two-dimensional projections, and sensor information is precise.

  14. Navigational and Environmental Measurement System (NEMS)

    NASA Technical Reports Server (NTRS)

    Clem, T. D.

    1988-01-01

    The NEMS concept and design were initiated from the need to measure and record positional and environmental information during aircraft flights of developmental science research instrumentation. The unit was designed as a stand-alone system which could serve the needs of instruments whose developmental nature did not justify the cost and complexity of including these measurements within the instrument data system. Initially, the system was comprised of a Loran-C receiver and a portable IBM compatible computer recording position and time. Later, the system was interfaced with the Wallops aircraft inertial navigation system (INS), and various other sensors were supplied and shared by the Goddard science users. Real-time position mapping on video monitors was added for investigator's use and information. In 1987, the use of a Global Positioning System (GPS) receiver was included in some missions. A total configuration of the system and the various sensors which can be incorporated are shown.

  15. A TCAS-II Resolution Advisory Detection Algorithm

    NASA Technical Reports Server (NTRS)

    Munoz, Cesar; Narkawicz, Anthony; Chamberlain, James

    2013-01-01

    The Traffic Alert and Collision Avoidance System (TCAS) is a family of airborne systems designed to reduce the risk of mid-air collisions between aircraft. TCASII, the current generation of TCAS devices, provides resolution advisories that direct pilots to maintain or increase vertical separation when aircraft distance and time parameters are beyond designed system thresholds. This paper presents a mathematical model of the TCASII Resolution Advisory (RA) logic that assumes accurate aircraft state information. Based on this model, an algorithm for RA detection is also presented. This algorithm is analogous to a conflict detection algorithm, but instead of predicting loss of separation, it predicts resolution advisories. It has been formally verified that for a kinematic model of aircraft trajectories, this algorithm completely and correctly characterizes all encounter geometries between two aircraft that lead to a resolution advisory within a given lookahead time interval. The RA detection algorithm proposed in this paper is a fundamental component of a NASA sense and avoid concept for the integration of Unmanned Aircraft Systems in civil airspace.

  16. Behavioral Mapless Navigation Using Rings

    NASA Technical Reports Server (NTRS)

    Monroe, Randall P.; Miller, Samuel A.; Bradley, Arthur T.

    2012-01-01

    This paper presents work on the development and implementation of a novel approach to robotic navigation. In this system, map-building and localization for obstacle avoidance are discarded in favor of moment-by-moment behavioral processing of the sonar sensor data. To accomplish this, we developed a network of behaviors that communicate through the passing of rings, data structures that are similar in form to the sonar data itself and express the decisions of each behavior. Through the use of these rings, behaviors can moderate each other, conflicting impulses can be mediated, and designers can easily connect modules to create complex emergent navigational techniques. We discuss the development of a number of these modules and their successful use as a navigation system in the Trinity omnidirectional robot.

  17. Navigation systems. [for interplanetary flight

    NASA Technical Reports Server (NTRS)

    Jordan, J. F.

    1985-01-01

    The elements of the measurement and communications network comprising the global deep space navigation system (DSN) for NASA missions are described. Among the measurement systems discussed are: VLBI, two-way Doppler and range measurements, and optical measurements carried out on board the spacecraft. Processing of navigation measurement is carried out using two modules: an N-body numerical integration of the trajectory (and state transition partial derivatives) based on pre-guessed initial conditions; and partial derivatives of simulated observables corresponding to each actual observation. Calculations of velocity correction parameters is performed by precise modelling of all physical phenomena influencing the observational measurements, including: planetary motions; tracking station locations, gravity field structure, and transmission media effects. Some of the contributions to earth-relative orbit estimate errors for the Doppler/range system on board Voyager are discussed in detail. A line drawing of the DSN navigation system is provided.

  18. Surgical navigation in oral implantology.

    PubMed

    Miller, Robert J; Bier, Jurgen

    2006-03-01

    The ability to generate 3-dimensional volumetric images of the maxillofacial area has allowed surgeons to evaluate anatomy before surgery and plan for the placement of implants in ideal positions. However, the ability to transfer that information to surgical reality has been the most challenging part of implant dentistry. With the advent of computer-assisted surgery, the surgeon may now navigate through the entire implant procedure with extremely high accuracy. A new portable laptop navigated system for oral implantology is discussed as an adjunct for complex implant cases. PMID:16569960

  19. Navigation: traveling the water highways!

    USGS Publications Warehouse

    Fisher, Marion; Vandas, Stephen; Farrar, Frank, (artist)

    1996-01-01

    NAVIGATION is travel or transportation over water. Many different kinds of boats and ships are used on rivers and oceans to move people and products from one place to another. Navigation was extremely important for foreign and domestic trade and travel in the early days of our country before cars, trucks, trains, and airplanes were invented. In those days, rivers were used as "roads" to connect inland settlements to river and coastal ports. Communities established at these commercial ports became important economic, cultural, and social hubs in the development of our Nation.

  20. Seamless Resource-Adaptive Navigation

    NASA Astrophysics Data System (ADS)

    Schwartz, Tim; Stahl, Christoph; Baus, Jörg; Wahlster, Wolfgang

    Research in the project RENA (REsource-Adapative NAvigation) together with DFKI GmbH, BMW Research and Technology AG, and Eyeled GmbH has been concerned with the conceptual and methodological foundations and the design of a resource-adaptive platform for seamless outdoor and indoor navigation that can serve as a basis for product development by the companies in the RENA consortium. Future in-car assistance systems will have a user interface, which adapts to the driveŕs current exposure caused by the actual traffic situation.

  1. A greedy-navigator approach to navigable city plans

    NASA Astrophysics Data System (ADS)

    Lee, Sang Hoon; Holme, Petter

    2013-01-01

    We use a set of four theoretical navigability indices for street maps to investigate the shape of the resulting street networks, if they are grown by optimizing these indices. The indices compare the performance of simulated navigators (having a partial information about the surroundings, like humans in many real situations) to the performance of optimally navigating individuals. We show that our simple greedy shortcut construction strategy generates the emerging structures that are different from real road network, but not inconceivable. The resulting city plans, for all navigation indices, share common qualitative properties such as the tendency for triangular blocks to appear, while the more quantitative features, such as degree distributions and clustering, are characteristically different depending on the type of metrics and routing strategies. We show that it is the type of metrics used which determines the overall shapes characterized by structural heterogeneity, but the routing schemes contribute to more subtle details of locality, which is more emphasized in case of unrestricted connections when the edge crossing is allowed.

  2. Aerospace Safety Advisory Panel

    NASA Technical Reports Server (NTRS)

    1993-01-01

    The Aerospace Safety Advisory Panel (ASAP) provided oversight on the safety aspects of many NASA programs. In addition, ASAP undertook three special studies. At the request of the Administrator, the panel assessed the requirements for an assured crew return vehicle (ACRV) for the space station and reviewed the organization of the safety and mission quality function within NASA. At the behest of Congress, the panel formed an independent, ad hoc working group to examine the safety and reliability of the space shuttle main engine. Section 2 presents findings and recommendations. Section 3 consists of information in support of these findings and recommendations. Appendices A, B, C, and D, respectively, cover the panel membership, the NASA response to the findings and recommendations in the March 1992 report, a chronology of the panel's activities during the reporting period, and the entire ACRV study report.

  3. Payload advisory panel recommendations

    NASA Technical Reports Server (NTRS)

    Moore, Berrien, III

    1991-01-01

    The Payload Advisory Panel proposes a restructured Earth Observing System (EOS) mission to address high-priority science and environmental policy issues in Earth System Science. These issues have been identified through studies conducted by the Intergovernmental Panel on Climate Change (IPCC), the United States Environmental Protection Agency (EPA), and the Committee on Earth and Environmental Sciences (CEES). The restructured EOS defers efforts to improve the understanding of the middle and upper stratosphere and solid earth geophysics. The strategy of the mission combines high priority new measurements with continuation of critical data sets begun by missions which precede EOS. Collaborative arrangements with international partners are an essential part of the program and additional arrangements are posed. The need for continuity in Earth observations and the urgency of environmental questions require launch of some EOS elements as soon as possible. They further require maintenance of the EOS objective of obtaining consistent 15-year measurement records.

  4. Atmospheric Release Advisory Capability

    SciTech Connect

    Dickerson, M.H.; Gudiksen, P.H.; Sullivan, T.J.

    1983-02-01

    The Atmospheric Release Advisory Capability (ARAC) project is a Department of Energy (DOE) sponsored real-time emergency response service available for use by both federal and state agencies in case of a potential or actual atmospheric release of nuclear material. The project, initiated in 1972, is currently evolving from the research and development phase to full operation. Plans are underway to expand the existing capability to continuous operation by 1984 and to establish a National ARAC Center (NARAC) by 1988. This report describes the ARAC system, its utilization during the past two years, and plans for its expansion during the next five to six years. An integral part of this expansion is due to a very important and crucial effort sponsored by the Defense Nuclear Agency to extend the ARAC service to approximately 45 Department of Defense (DOD) sites throughout the continental US over the next three years.

  5. 75 FR 68787 - Science Advisory Board Staff Office; Notification of a Public Teleconference of the Advisory...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-09

    ... AGENCY Science Advisory Board Staff Office; Notification of a Public Teleconference of the Advisory...: Notice. SUMMARY: The EPA Science Advisory Board (SAB) Staff Office announces a public teleconference of... Science Advisory Board Staff Office (1400R), U.S. Environmental Protection Agency, 1200...

  6. 78 FR 56231 - Government-Wide Travel Advisory Committee (GTAC); Public Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-12

    ... ADMINISTRATION Government-Wide Travel Advisory Committee (GTAC); Public Advisory Committee Meeting AGENCY: Office... Government-wide Travel Advisory Committee (GTAC) (the Committee), is a Federal Advisory Committee established... will be held on Thursday, November 7, 2013, beginning at 9:00 a.m. Eastern Standard Time, and ending...

  7. 78 FR 51191 - Government-wide Travel Advisory Committee (GTAC); Public Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-20

    ... ADMINISTRATION Government-wide Travel Advisory Committee (GTAC); Public Advisory Committee Meeting AGENCY: Office... Government-wide Travel Advisory Committee (GTAC) (the Committee), is a Federal Advisory Committee established... Standard Time, and ending no later than 4:00 p.m. Eastern Standard Time. FOR FURTHER INFORMATION...

  8. 78 FR 40144 - Governmentwide Travel Advisory Committee (GTAC); Upcoming Public Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-03

    ... ADMINISTRATION Governmentwide Travel Advisory Committee (GTAC); Upcoming Public Advisory Committee Meeting AGENCY... Governmentwide Travel Advisory Committee (GTAC) (the Committee), is a Federal Advisory Committee established in....m. Eastern Standard Time, ending no later than 4:00 p.m. and July 31, 2013 beginning at 9:00...

  9. 75 FR 8310 - Federal Advisory Committee; Transformation Advisory Group; Closed Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-24

    ... of the Secretary Federal Advisory Committee; Transformation Advisory Group; Closed Meeting AGENCY... Advisory Group will hold a closed meeting on March 11, 2010. DATES: The meeting will be held on March 11... the Transformation Advisory Group at any time or in response to the stated agenda of a planned...

  10. 78 FR 77663 - Threat Reduction Advisory Committee; Notice of Federal Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-24

    ... of the Secretary Threat Reduction Advisory Committee; Notice of Federal Advisory Committee Meeting... Federal advisory committee meeting of the Threat Reduction Advisory Committee (``the Committee''). This... INFORMATION CONTACT: Mr. William Hostyn, DoD, Defense Threat Reduction Agency/J2/5/8R-AC, 8725 John J....

  11. 75 FR 22790 - Science Advisory Board Staff Office; Request for Nominations of Candidates for EPA's Advisory...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-30

    ... AGENCY Science Advisory Board Staff Office; Request for Nominations of Candidates for EPA's Advisory...) and EPA's Science Advisory Board (SAB) AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The U.S. Environmental Protection Agency's (EPA) Science Advisory Board (SAB) Staff Office...

  12. 32 CFR 1698.4 - Confidentiality of advisory opinions and requests for advisory opinions.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 32 National Defense 6 2011-07-01 2011-07-01 false Confidentiality of advisory opinions and requests for advisory opinions. 1698.4 Section 1698.4 National Defense Other Regulations Relating to National Defense SELECTIVE SERVICE SYSTEM ADVISORY OPINIONS § 1698.4 Confidentiality of advisory...

  13. 78 FR 69392 - Defense Advisory Committee on Military Personnel Testing; Notice of Federal Advisory Committee...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-19

    ... of the Secretary Defense Advisory Committee on Military Personnel Testing; Notice of Federal Advisory... advisory committee meeting of the Defense Advisory Committee on Military Personnel Testing. The purpose of the meeting is to review planned changes and progress in developing computerized tests for...

  14. 32 CFR 1698.4 - Confidentiality of advisory opinions and requests for advisory opinions.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 32 National Defense 6 2013-07-01 2013-07-01 false Confidentiality of advisory opinions and requests for advisory opinions. 1698.4 Section 1698.4 National Defense Other Regulations Relating to National Defense SELECTIVE SERVICE SYSTEM ADVISORY OPINIONS § 1698.4 Confidentiality of advisory...

  15. 32 CFR 1698.4 - Confidentiality of advisory opinions and requests for advisory opinions.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 32 National Defense 6 2010-07-01 2010-07-01 false Confidentiality of advisory opinions and requests for advisory opinions. 1698.4 Section 1698.4 National Defense Other Regulations Relating to National Defense SELECTIVE SERVICE SYSTEM ADVISORY OPINIONS § 1698.4 Confidentiality of advisory...

  16. 32 CFR 1698.4 - Confidentiality of advisory opinions and requests for advisory opinions.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 32 National Defense 6 2012-07-01 2012-07-01 false Confidentiality of advisory opinions and requests for advisory opinions. 1698.4 Section 1698.4 National Defense Other Regulations Relating to National Defense SELECTIVE SERVICE SYSTEM ADVISORY OPINIONS § 1698.4 Confidentiality of advisory...

  17. 32 CFR 1698.4 - Confidentiality of advisory opinions and requests for advisory opinions.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 32 National Defense 6 2014-07-01 2014-07-01 false Confidentiality of advisory opinions and requests for advisory opinions. 1698.4 Section 1698.4 National Defense Other Regulations Relating to National Defense SELECTIVE SERVICE SYSTEM ADVISORY OPINIONS § 1698.4 Confidentiality of advisory...

  18. 77 FR 74661 - Open Internet Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-17

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION Open Internet Advisory Committee AGENCY: Federal Communications Commission. ACTION: Notice... Internet at http://www.fcc.gov/events/open-internet-advisory-committee . Federal Communications...

  19. Some Facts About Curriculum Advisory Committees

    ERIC Educational Resources Information Center

    Folley, Vern L.

    1974-01-01

    The nature and philosophy of community colleges lend themselves to the use of advisory committees, and this article discussed the development of citizen involvement in the creation of curriculum advisory committees. (Author/RK)

  20. 75 FR 13598 - NASA Advisory Council; Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-22

    ... SPACE ADMINISTRATION NASA Advisory Council; Meeting AGENCY: National Aeronautics and Space... Information Technology Infrastructure Committee of the NASA Advisory Council. DATES: Thursday, April 15, 2010...; 2939943. ADDRESSES: NASA Headquarters, 300 E Street, SW., Washington, DC, Room 2O43 FOR...

  1. 77 FR 67029 - NASA Advisory Council Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-08

    ... SPACE ADMINISTRATION NASA Advisory Council Meeting AGENCY: National Aeronautics and Space Administration... amended, the National Aeronautics and Space Administration announces a meeting of the NASA Advisory... are local time. ADDRESSES: NASA Marshall Space Flight Center, Building 4200, Room P- 110,...

  2. 75 FR 9416 - Advisory Committee Information Hotline

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-02

    ... Central Nervous System Drugs Advisory Committee 3014512543 Pharmaceutical Science & Clinical Pharmacology... Respiratory Therapy Devices Panel 3014512624 Circulatory System Devices Panel 3014512625 Clinical Chemistry... current information available about any particular advisory committee meeting, this system will...

  3. 78 FR 16852 - Open Internet Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-19

    ... COMMISSION Open Internet Advisory Committee AGENCY: Federal Communications Commission. ACTION: Notice. SUMMARY: The Commission announces the next meeting date, time, and agenda of the Open Internet Advisory... Open Internet rules, and to provide any recommendations it deems appropriate to the...

  4. 76 FR 34230 - Technological Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-13

    ... COMMISSION Technological Advisory Council AGENCY: Federal Communications Commission. ACTION: Notice of public... persons that the Federal Communications Commission's (FCC) Technological Advisory Council will hold a... the meeting to: Walter Johnston, the FCC's Designated Federal Officer for Technological...

  5. 75 FR 51026 - Environmental Management Advisory Board

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-18

    ... Environmental Management Advisory Board AGENCY: Department of Energy. ACTION: Notice of open meeting. SUMMARY: This notice announces a meeting of the Environmental Management Advisory Board (EMAB). The Federal... Assistant Secretary for Environmental Management (EM) with advice and recommendations on corporate...

  6. 75 FR 67351 - Environmental Management Advisory Board

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-02

    ... Environmental Management Advisory Board AGENCY: Department of Energy. ACTION: Notice of Open Teleconference. SUMMARY: This notice announces a teleconference of the Environmental Management Advisory Board (EMAB). The... is to provide the Assistant Secretary for Environmental Management (EM) with advice...

  7. 76 FR 23969 - Virginia Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-29

    ... Forest Service Virginia Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Virginia Resource Advisory Committee will meet in Roanoke, Virginia. The committee... National Forests Supervisor's Office conference room at 5162 Valleypointe Parkway, Roanoke, Virginia...

  8. 76 FR 770 - Mendocino Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-06

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Mendocino Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Mendocino County Resource Advisory Committee will meet January 21, 2011 (RAC)...

  9. 77 FR 50676 - Nicolet Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-22

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Nicolet Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Nicolet Resource Advisory Committee will meet in Crandon, WI. The committee...

  10. 77 FR 45329 - Sabine Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-31

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Sabine Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Sabine Resource Advisory Committee will meet in ] Hemphill, Texas. The committee...

  11. 76 FR 50993 - Allegheny Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-17

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Allegheny Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Allegheny Resource Advisory Committee will meet in Warren, Pennsylvania....

  12. 77 FR 50985 - Gogebic Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-23

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Gogebic Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Gogebic Resource Advisory Committee will meet in Watersmeet, Michigan. The...

  13. 75 FR 3197 - Mendocino Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-20

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Mendocino Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Mendocino County Resource Advisory Committee will meet February 5, 2010 (RAC)...

  14. 78 FR 41362 - Ontonagon Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-10

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Ontonagon Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Ontonagon Resource Advisory Committee will meet in Kenton, Michigan on the...

  15. 77 FR 49410 - Chequamegon Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-16

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Chequamegon Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Chequamegon Resource Advisory Committee will meet in Park Falls, Wisconsin....

  16. 76 FR 50994 - Allegheny Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-17

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Allegheny Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Allegheny Resource Advisory Committee will meet in Clarendon, Pennsylvania....

  17. 78 FR 41362 - Gogebic Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-10

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Gogebic Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Gogebic Resource Advisory Committee (RAC) will meet in Watersmeet, Michigan on...

  18. 77 FR 56607 - Mendocino Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-13

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Mendocino Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Mendocino County Resource Advisory Committee will meet September 21, 2012 (RAC)...

  19. 76 FR 16378 - Mendocino Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-23

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Mendocino Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Mendocino County Resource Advisory Committee will meet April 15, 2011 (RAC)...

  20. 78 FR 22842 - Nicolet Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-17

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Nicolet Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Nicolet Resource Advisory Committee will meet in Crandon, WI. The committee...

  1. 77 FR 50984 - Ontonagon Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-23

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Ontonagon Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Ontonagon Resource Advisory Committee will meet in Ontonagon, Michigan....

  2. 76 FR 2882 - Ontonagon Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-18

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Ontonagon Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Ontonagon Resource Advisory Committee will meet in Ewen, Michigan. The Committee...

  3. 75 FR 45091 - Ontonagon Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-02

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Ontonagon Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Ontonagon Resource Advisory Committee will meet in Ontonagon, Michigan....

  4. 76 FR 38109 - Allegheny Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-29

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Allegheny Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Allegheny Resource Advisory Committee will meet in Marienville, Pennsylvania....

  5. 75 FR 42067 - Chequamegon Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-20

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Chequamegon Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Nicolet Resource Advisory Committee will meet in Crandon, Wisconsin. The...

  6. 77 FR 49410 - Kisatchie Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-16

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Kisatchie Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Kisatchie Resource Advisory Committee will meet in Natchitoches, Louisiana....

  7. 75 FR 26918 - Fishlake Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-13

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Fishlake Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Fishlake Resource Advisory Committee will meet in Richfield, Utah. The committee...

  8. 76 FR 4089 - Nicolet Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-24

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Nicolet Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of Meeting. SUMMARY: The Nicolet Resource Advisory Committee will meet in Crandon, Wisconsin. The...

  9. 76 FR 45227 - Allegheny Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-28

    ... From the Federal Register Online via the Government Publishing Office ] DEPARTMENT OF AGRICULTURE Forest Service Allegheny Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Allegheny Resource Advisory Committee will meet in Clarendon, Pennsylvania....

  10. 77 FR 48126 - Flathead Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-13

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Flathead Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meetings. SUMMARY: The Flathead Resource Advisory Committee will meet in Kalispell, Montana. The...

  11. 77 FR 49777 - Fishlake Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-17

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Fishlake Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Fishlake Resource Advisory Committee will meet in Richfield, Utah. The committee...

  12. 76 FR 22077 - Gogebic Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-20

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Gogebic Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Gogebic Resource Advisory Committee will meet in Marenisco, Michigan. The...

  13. 76 FR 85 - Coconino Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-03

    ... Forest Service Coconino Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Coconino Resource Advisory Committee will meet in Flagstaff, Arizona, to finalize...., Flagstaff, Arizona 86004. Send written comments to Brady Smith, RAC Coordinator, Coconino Resource...

  14. 75 FR 27704 - Mendocino Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-18

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Mendocino Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Mendocino County Resource Advisory Committee will meet June 18, 2010 (RAC)...

  15. 76 FR 11193 - Superior Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-01

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Superior Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Superior Resource Advisory Committee will meet in Duluth, Minnesota. The...

  16. 76 FR 22672 - Nicolet Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-22

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Nicolet Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Nicolet Resource Advisory Committee will meet in Crandon, WI. The committee...

  17. 76 FR 44573 - Chequamegon Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-26

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Chequamegon Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Chequamegon Resource Advisory Committee will meet in Park Falls, Wisconsin....

  18. 75 FR 65296 - Superior Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-22

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Superior Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Superior Resource Advisory Committee will meet in Duluth, Minnesota. The...

  19. 77 FR 47812 - Yakutat Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-10

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Yakutat Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Yakutat Resource Advisory Committee will meet in Yakutat, Alaska. The committee...

  20. 76 FR 20310 - Ketchikan Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-12

    ... Forest Service Ketchikan Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Ketchikan Resource Advisory Committee will meet in Ketchikan, Alaska, June 28, 2011... Ranger District, 3031 Tongass Avenue, Ketchikan, Alaska. Send written comments to Ketchikan...

  1. 78 FR 23741 - Flathead Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-22

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Flathead Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meetings. SUMMARY: The Flathead Resource Advisory Committee will meet in Kalispell, Montana. The...

  2. 76 FR 51343 - Mendocino Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-18

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Mendocino Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. ] SUMMARY: The Mendocino County Resource Advisory Committee will meet September 16, 2011 (RAC)...

  3. 76 FR 23275 - Allegheny Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-26

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Allegheny Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Allegheny Resource Advisory Committee will meet in Clarendon, Pennsylvania....

  4. 76 FR 48801 - Gallatin Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-09

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Gallatin Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Gallatin National Forest's Gallatin Resource Advisory Committee will meet in...

  5. 76 FR 4862 - Fishlake Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-27

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Fishlake Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Fishlake Resource Advisory Committee will meet in Richfield, Utah. The committee...

  6. 78 FR 33049 - Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-03

    ... Grain Inspection, Packers and Stockyards Administration Advisory Committee Meeting AGENCY: Grain... of the Grain Inspection, Packers and Stockyards Administration (GIPSA) Grain Inspection Advisory... Administrator on the programs and services that GIPSA delivers under the U.S. Grain Standards...

  7. 76 FR 72900 - Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-28

    ... Grain Inspection, Packers and Stockyards Administration Advisory Committee Meeting AGENCY: Grain... of the Grain Inspection, Packers and Stockyards Administration (GIPSA) Grain Inspection Advisory... Administrator on the programs and services that GIPSA delivers under the U.S. Grain Standards...

  8. 77 FR 65016 - NASA Federal Advisory Committees

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-24

    ... as member of NASA mission science team, Research & Analysis program, membership on an advisory..., Strategic Integration & Management Division, Science Mission Directorate, NASA Headquarters, Washington, DC... Committee supporting the advisory needs of the NASA Administrator, the Science Mission Directorate...

  9. 78 FR 3402 - Marine Fisheries Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-16

    ... National Oceanic and Atmospheric Administration RIN 0648-XC443 Marine Fisheries Advisory Committee AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Commerce... of a forthcoming meeting of the Marine Fisheries Advisory Committee (MAFAC). The members will...

  10. 77 FR 46733 - Marine Fisheries Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-06

    ... National Oceanic and Atmospheric Administration RIN 0648-XC145 Marine Fisheries Advisory Committee AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Commerce... of a forthcoming meeting of the Marine Fisheries Advisory Committee (MAFAC). The members will...

  11. 75 FR 44770 - Marine Fisheries Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-29

    ... National Oceanic and Atmospheric Administration RIN 0648-XX87 Marine Fisheries Advisory Committee AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Commerce... of a forthcoming meeting of the Marine Fisheries Advisory Committee (MAFAC). The members will...

  12. 76 FR 14379 - Marine Fisheries Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-16

    ... National Oceanic and Atmospheric Administration RIN 0648-XA265 Marine Fisheries Advisory Committee AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Commerce... of a forthcoming meeting of the Marine Fisheries Advisory Committee (MAFAC). The members will...

  13. 76 FR 56454 - Consumer Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-13

    ... COMMISSION Consumer Advisory Committee Meeting AGENCY: Federal Communications Commission. ACTION: Notice. SUMMARY: The Commission announces the next meeting date and agenda of its Consumer Advisory Committee (Committee). The purpose of the Committee is to make recommendations to the Commission regarding...

  14. 75 FR 4819 - Consumer Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-29

    ... COMMISSION Consumer Advisory Committee AGENCY: Federal Communications Commission. ACTION: Notice. SUMMARY: The Commission announces the next meeting date and agenda of its Consumer Advisory Committee (``Committee''). The purpose of the Committee is to make recommendations to the Commission regarding...

  15. 75 FR 33305 - Consumer Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-11

    ... COMMISSION Consumer Advisory Committee AGENCY: Federal Communications Commission. ACTION: Notice. SUMMARY: The Commission announces the next meeting date and agenda of its Consumer Advisory Committee (``Committee''). The purpose of the Committee is to make recommendations to the Commission regarding...

  16. 75 FR 9898 - Consumer Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-04

    ... COMMISSION Consumer Advisory Committee AGENCY: Federal Communications Commission. ACTION: Notice. SUMMARY: The Commission announces the next meeting date and agenda of its Consumer Advisory Committee (``Committee''). The purpose of the ] Committee is to make recommendations to the Commission regarding...

  17. 75 FR 63830 - Consumer Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-18

    ... COMMISSION Consumer Advisory Committee AGENCY: Federal Communications Commission. ACTION: Notice. SUMMARY: The Commission announces the next meeting date and agenda of its Consumer Advisory Committee (``Committee''). The purpose of the Committee is to make recommendations to the Commission regarding...

  18. 77 FR 5801 - Consumer Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-06

    ... COMMISSION Consumer Advisory Committee AGENCY: Federal Communications Commission. ACTION: Notice. SUMMARY: The Commission announces the next meeting date, time, and agenda of its Consumer Advisory Committee... within the jurisdiction of the Commission and to facilitate the participation of all consumers...

  19. 77 FR 55214 - Consumer Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-07

    ... COMMISSION Consumer Advisory Committee AGENCY: Federal Communications Commission. ACTION: Notice. SUMMARY: The Commission announces the next meeting date, time, and agenda of its Consumer Advisory Committee... within the jurisdiction of the Commission and to facilitate the participation of all consumers...

  20. 75 FR 41863 - Consumer Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-19

    ... COMMISSION Consumer Advisory Committee AGENCY: Federal Communications Commission. ACTION: Notice. SUMMARY: The Commission announces the next meeting date and agenda of its Consumer Advisory Committee (``Committee''). The purpose of the Committee is to make recommendations to the Commission regarding...

  1. 76 FR 65726 - Consumer Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-24

    ... COMMISSION Consumer Advisory Committee AGENCY: Federal Communications Commission. ACTION: Notice. SUMMARY: The Commission announces the next meeting date, time, and agenda of its Consumer Advisory Committee... within the jurisdiction of the Commission and to facilitate the participation of all consumers...

  2. 18 CFR 701.59 - Advisory committees.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... ORGANIZATION Headquarters Organization § 701.59 Advisory committees. The Council may establish standing and ad hoc advisory committees. The establishment, operation, and termination of such committees shall be...

  3. 18 CFR 701.59 - Advisory committees.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... ORGANIZATION Headquarters Organization § 701.59 Advisory committees. The Council may establish standing and ad hoc advisory committees. The establishment, operation, and termination of such committees shall be...

  4. 18 CFR 701.59 - Advisory committees.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... ORGANIZATION Headquarters Organization § 701.59 Advisory committees. The Council may establish standing and ad hoc advisory committees. The establishment, operation, and termination of such committees shall be...

  5. 18 CFR 701.59 - Advisory committees.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... ORGANIZATION Headquarters Organization § 701.59 Advisory committees. The Council may establish standing and ad hoc advisory committees. The establishment, operation, and termination of such committees shall be...

  6. 18 CFR 701.59 - Advisory committees.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... ORGANIZATION Headquarters Organization § 701.59 Advisory committees. The Council may establish standing and ad hoc advisory committees. The establishment, operation, and termination of such committees shall be...

  7. 75 FR 31760 - Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-04

    ... Grain Inspection, Packers and Stockyards Administration Advisory Committee Meeting AGENCY: Grain... of the Grain Inspection, Packers and Stockyards Administration (GIPSA) Grain Inspection Advisory... Administrator on the programs and services that GIPSA delivers under the U.S. Grain Standards...

  8. 75 FR 67682 - Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-03

    ... Grain Inspection, Packers and Stockyards Administration Advisory Committee Meeting AGENCY: Grain... of the Grain Inspection, Packers and Stockyards Administration (GIPSA) Grain Inspection Advisory... Administrator on the programs and services that GIPSA delivers under the U.S. Grain Standards...

  9. 76 FR 39884 - Aviation Security Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-07

    ... SECURITY Aviation Security Advisory Committee AGENCY: Transportation Security Administration, DHS. ACTION... Security Administration (TSA) announces the re-establishment of the Aviation Security Advisory Committee (ASAC). The Secretary of Homeland Security has determined that the re- establishment of ASAC...

  10. 78 FR 60302 - National Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-01

    ...: Review and update of the National Incident Management System (NIMS); Public Assistance Pilot Programs of... SECURITY Federal Emergency Management Agency National Advisory Council AGENCY: Federal Emergency Management Agency, DHS. ACTION: Committee Management; Notice of Federal Advisory Committee Meeting. SUMMARY:...

  11. 76 FR 53929 - National Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-30

    ... National Incident Management System, the National Response Plan and other related plans and strategies... SECURITY Federal Emergency Management Agency National Advisory Council AGENCY: Federal Emergency Management Agency, DHS. ACTION: Committee management; notice of federal advisory committee meeting. SUMMARY:...

  12. 76 FR 22911 - National Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-25

    ... Incident Management System (NIMS) Credentialing implementation, and the Public Assistance (PA) Bottom-Up... SECURITY Federal Emergency Management Agency National Advisory Council AGENCY: Federal Emergency Management Agency, DHS. ACTION: Committee Management; Notice of Federal Advisory Committee Meeting. SUMMARY:...

  13. 78 FR 54629 - Consumer Advisory Board meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-05

    ... From the Federal Register Online via the Government Publishing Office CONSUMER FINANCIAL PROTECTION BUREAU Consumer Advisory Board meeting AGENCY: Bureau of Consumer Financial Protection. ACTION... Consumer Advisory Board (``CAB'' or ``Board'') of the Consumer Financial Protection Bureau (Bureau)....

  14. 76 FR 3633 - Consumer Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-20

    ... COMMISSION Consumer Advisory Committee AGENCY: Federal Communications Commission. ACTION: Notice. SUMMARY: This document announces the rechartering of the Consumer Advisory Committee (hereinafter ``the... ``Commission'') regarding consumer issues within the jurisdiction of the Commission and to facilitate...

  15. 77 FR 39247 - National Infrastructure Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-02

    ... SECURITY National Infrastructure Advisory Council AGENCY: National Protection and Programs Directorate, DHS... Infrastructure Advisory Council (NIAC) will meet on Tuesday, July 17, 2012, at the Department of Transportation's... at the meeting location. FOR FURTHER INFORMATION CONTACT: Nancy Wong, National...

  16. 77 FR 70453 - Chemical Transportation Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-26

    ... of the Federal Register (73 FR 3316). Docket: This notice, and documents or comments related to it... SECURITY Coast Guard Chemical Transportation Advisory Committee AGENCY: Coast Guard, DHS. ] ACTION: Committee Management; Notice of Federal Advisory Committee Meeting. SUMMARY: The Chemical...

  17. 75 FR 55539 - Shoshone Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-09-13

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF AGRICULTURE Forest Service Shoshone Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Shoshone Resource Advisory Committee will meet in Thermopolis, Wyoming....

  18. Annual report of the National Advisory Committee for Aeronautics (6th).administrative report including Technical Reports nos. 83 to 110

    NASA Technical Reports Server (NTRS)

    1921-01-01

    Report includes the National Advisory Committee for Aeronautics letter of submittal to the President, Congressional report, summaries of the committee's activities and research accomplished, expenditures, House of Representatives bill 14061, a copy of the bill introduced to the House of Representatives to regulate air navigation, and a compilation of technical reports produced.

  19. Self-Navigating THE TERRAIN

    ERIC Educational Resources Information Center

    Anyaso, Hilary Hurd

    2008-01-01

    There's some good news in the academy regarding Black women: They occupy a number of high-profile executive posts in higher education. But whether Black women scholars want to follow in their footsteps or continue in a teaching or research capacity, the bad news is that many feel they are left to navigate the personal and professional politics of…

  20. Evaluation of STOL navigation avionics

    NASA Technical Reports Server (NTRS)

    Dunn, W. R., Jr.

    1977-01-01

    Research projects, including work on a vector magnetometer for aircraft attitude measurement, are summarized. The earth's electric field phenomena was investigated in its application to aircraft control and navigation. Research on electronic aircraft cabin noise suppression is reviewed and strapdown inertial reference unit technical support is outlined.

  1. Multiple source navigation signal generator

    NASA Astrophysics Data System (ADS)

    Bojda, Petr

    2010-09-01

    The paper presents a FPGA based digital VOR/LOC signal generator. It provides the composite signal, which consists of the particular signals of several predefined navigation sources - VOR beacons. Design of the generator is implemented into the two different FPGA DSP platforms.

  2. SMALL CRAFT OPERATION AND NAVIGATION.

    ERIC Educational Resources Information Center

    Louisiana State Dept. of Education, Baton Rouge.

    THIS REFERENCE TEXTBOOK WAS PREPARED FOR USE IN THE FIRST PART OF A TWO-PART COURSE IN MARINE NAVIGATION AND SMALL CRAFT OPERATION ON INLAND AND INTERNATIONAL WATERS. THE MATERIAL WAS DEVELOPED BY AN INDIVIDUAL AUTHOR FOR USE IN TRADE SCHOOL PREPARATORY AND EXTENSION CLASSES FOR MALE ADULTS WHO PLAN TO OPERATE BOATS. IT IS MAINLY CONCERNED WITH…

  3. Synchronous navigation for CT colonography

    NASA Astrophysics Data System (ADS)

    Huang, Adam; Summers, Ronald M.; Roy, Dave

    2006-03-01

    We present a synchronous navigation module for CT colonography (CTC) reading. The need for such a system arises because most CTC protocols require a patient to be scanned in both supine and prone positions to increase sensitivity in detecting colonic polyps. However, existing clinical practices are limited to reading one scan at a time. Such limitation is due to the fact that building a reference system between scans for the highly flexible colon is a nontrivial task. The conventional centerline approach, generating only the longitudinal distance along the colon, falls short in providing the necessary orientation information to synchronize the virtual navigation cameras in both scanned positions. In this paper we describe a synchronous navigation system by using the teniae coli as anatomical references. Teniae coli are three parallel bands of longitudinal smooth muscle on the surface of the colon. They are morphologically distinguishable and form a piecewise triple helix structure from the appendix to the sigmoid colon. Because of these characteristics, they are ideal references to synchronize virtual cameras in both scanned positions. Our new navigation system consists of two side-by-side virtual colonoscopic view panels (for the supine and prone data sets respectively) and one single camera control unit (which controls both the supine and prone virtual cameras). The capability to examine the same colonic region simultaneously in both scanned images can raise an observer's confidence in polyp identification and potentially improve the performance of CT colonography.

  4. Automated pilot advisory system test and evaluation at Manassas Municipal Airport

    NASA Technical Reports Server (NTRS)

    Parks, J. L., Jr.

    1981-01-01

    In cooperation with the Federal Aviation Administration, NASA developed an experimental automated pilot advisory system (APAS) to provide airport and air traffic advisories at high density uncontrolled airports. The APAS concept is to utilize low cost automated systems to provide the necessary information for pilots to more safely plan and execute approach and landing at uncontrolled high density airports. The system is designed to be a natural extension of the procedural visual flight rules system used at uncontrolled airports and, as an advisory system, will enhance the "see-and-be-seen" rule and an evaluation of the APAS concept was obtained from pilots who used the system at the Manassas, Virginia airport. These evaluations and the system performance are presented.

  5. 75 FR 50987 - Colville Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-18

    ... Forest Service Colville Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Colville Resource Advisory Committee will meet in Colville, Washington, for the... written comments to Colville Resource Advisory Committee, c/o Franklin Pemberton, Colville National...

  6. 78 FR 49725 - Census Scientific Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-15

    ... Bureau of the Census Census Scientific Advisory Committee AGENCY: Bureau of the Census, Department of... giving notice of a meeting of the Census Scientific Advisory Committee (C-SAC). The C-SAC will meet in a... adjustments. DATES: September 19 and 20, 2013. On September 19, the Census Scientific Advisory...

  7. 76 FR 10577 - Electricity Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-25

    ... Electricity Advisory Committee Meeting AGENCY: Office of Electricity Delivery and Energy Reliability... reestablished Electricity Advisory Committee (EAC). The Federal Advisory Committee Act (Pub. L. 92-463, 86 Stat... of Electricity Delivery and Energy Reliability, U.S. Department of Energy, Forrestal Building,...

  8. 77 FR 10486 - Electricity Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-22

    ... Electricity Advisory Committee Meeting AGENCY: Office of Electricity Delivery and Energy Reliability... Electricity Advisory Committee (EAC). The Federal Advisory Committee Act (Pub. L. 92- 463, 86 Stat. 770... INFORMATION CONTACT: Matthew Rosenbaum, Office of Electricity Delivery and Energy Reliability, U.S....

  9. 75 FR 61454 - Electricity Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-05

    ... Electricity Advisory Committee AGENCY: Department of Energy, Office of Electricity Delivery and Energy...-established DOE Electricity Advisory Committee. The Federal Advisory Committee Act (Pub. L. 92-463, 86 Stat...: David Meyer, Designated Federal Officer, Office of Electricity Delivery and Energy Reliability,...

  10. 78 FR 9038 - Electricity Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-07

    ... Electricity Advisory Committee Meeting AGENCY: Office of Electricity Delivery and Energy Reliability... Electricity Advisory Committee (EAC). The Federal Advisory Committee Act (Pub. L. 92-463, 86 Stat. 770... FURTHER INFORMATION CONTACT: Matthew Rosenbaum, Office of Electricity Delivery and Energy Reliability,...

  11. 76 FR 68776 - Invasive Species Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-07

    ...Pursuant to the provisions of the Federal Advisory Committee Act, notice is hereby given of meetings of the Invasive Species Advisory Committee (ISAC). Comprised of 29 nonfederal invasive species experts and stakeholders from across the nation, the purpose of the Advisory Committee is to provide advice to the National Invasive Species Council, as authorized by Executive Order 13112, on a broad......

  12. 77 FR 23740 - Invasive Species Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-20

    ...Pursuant to the provisions of the Federal Advisory Committee Act, notice is hereby given of meetings of the Invasive Species Advisory Committee (ISAC). Comprised of 30 nonfederal invasive species experts and stakeholders from across the nation, the purpose of the Advisory Committee is to provide advice to the National Invasive Species Council, as authorized by Executive Order 13112, on a broad......

  13. 78 FR 11899 - Invasive Species Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-20

    ... Office of the Secretary Invasive Species Advisory Committee AGENCY: Office of the Secretary, Interior... Invasive Species Advisory Committee. The document contained incorrect dates. This document corrects those.... Meeting of the Invasive Species Advisory Committee (OPEN): Thursday, March 7, 2013 through Friday, March...

  14. 76 FR 21877 - Environmental Management Advisory Board

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-19

    ... Environmental Management Advisory Board AGENCY: Department of Energy. ACTION: Notice of call for nominations for appointment to the Environmental Management Advisory Board. SUMMARY: This notice constitutes an open call to the public to submit nominations for membership on the Environmental Management Advisory Board....

  15. 77 FR 4238 - Advisory Committee Management

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-27

    ... Part 8 RIN 1400-AC64 Advisory Committee Management AGENCY: Department of State. ACTION: Final rule... establish uniform administrative guidelines and management controls for advisory committees established by... of Subjects in 22 CFR Part 8 Advisory Committee Management. Accordingly, under the authority of 22...

  16. 77 FR 15091 - Environmental Management Advisory Board

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-14

    ... Environmental Management Advisory Board AGENCY: Department of Energy. ACTION: Notice of Solicitation of Nominations for Appointment as a member of the Environmental Management Advisory Board. SUMMARY: In accordance... soliciting nominations for candidates to fill vacancies on the Environmental Management Advisory Board...

  17. 5 CFR 724.403 - Advisory guidelines.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 2 2010-01-01 2010-01-01 false Advisory guidelines. 724.403 Section 724.403 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS... RETALIATION ACT OF 2002 Best Practices § 724.403 Advisory guidelines. OPM will issue advisory guidelines...

  18. 5 CFR 724.403 - Advisory guidelines.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 5 Administrative Personnel 2 2012-01-01 2012-01-01 false Advisory guidelines. 724.403 Section 724.403 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS... RETALIATION ACT OF 2002 Best Practices § 724.403 Advisory guidelines. OPM will issue advisory guidelines...

  19. 5 CFR 724.403 - Advisory guidelines.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 5 Administrative Personnel 2 2013-01-01 2013-01-01 false Advisory guidelines. 724.403 Section 724.403 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS... RETALIATION ACT OF 2002 Best Practices § 724.403 Advisory guidelines. OPM will issue advisory guidelines...

  20. 5 CFR 724.403 - Advisory guidelines.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 5 Administrative Personnel 2 2014-01-01 2014-01-01 false Advisory guidelines. 724.403 Section 724.403 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS... RETALIATION ACT OF 2002 Best Practices § 724.403 Advisory guidelines. OPM will issue advisory guidelines...

  1. 5 CFR 724.403 - Advisory guidelines.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 2 2011-01-01 2011-01-01 false Advisory guidelines. 724.403 Section 724.403 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS... RETALIATION ACT OF 2002 Best Practices § 724.403 Advisory guidelines. OPM will issue advisory guidelines...

  2. 75 FR 9886 - Methane Hydrate Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-04

    ... Hydrate Advisory Committee AGENCY: Department of Energy, Office of Fossil Energy. ACTION: Notice of open meeting. SUMMARY: This notice announces a meeting of the Methane Hydrate Advisory Committee. Federal... Methane Hydrate Advisory Committee is to provide advice on potential applications of methane hydrate...

  3. 76 FR 59667 - Methane Hydrate Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-27

    ... Hydrate Advisory Committee AGENCY: Office of Fossil Energy, Department of Energy. ACTION: Notice of Open Meeting. SUMMARY: This notice announces a meeting of the Methane Hydrate Advisory Committee. Federal... of the Committee: The purpose of the Methane Hydrate Advisory Committee is to provide advice...

  4. 78 FR 37536 - Methane Hydrate Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-21

    ... Hydrate Advisory Committee AGENCY: Office of Fossil Energy, Department of Energy. ACTION: Notice of open meeting. SUMMARY: This notice announces a meeting of the Methane Hydrate Advisory Committee. The Federal... of the Methane Hydrate Advisory Committee is to provide advice on potential applications of...

  5. 75 FR 65295 - Sitka Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-22

    ... Forest Service Sitka Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Sitka Resource Advisory Committee will meet in Sitka, Alaska, November 1, 2010. The purpose... to Sitka Resource Advisory Committee, c/o District Ranger, USDA Forest Service, 204 Siginaka...

  6. 75 FR 10460 - Yakutat Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-08

    ... Forest Service Yakutat Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Yakutat Resource Advisory Committee will meet in Yakutat, Alaska. The purpose of the meeting is to continue business of the Yakutat Resource Advisory Committee. The committee was formed...

  7. 78 FR 45496 - Flathead Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-29

    ... Forest Service Flathead Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meetings. SUMMARY: The Flathead Resource Advisory Committee will meet in Kalispell, Montana on the dates..., 2013--4:00 p.m. to 6:30 p.m. All Resource Advisory Committee meetings are subject to change...

  8. 77 FR 47592 - Ketchikan Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-09

    ... Forest Service Ketchikan Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Ketchikan Resource Advisory Committee will meet in Ketchikan, Alaska, September 11..., Ketchikan, Alaska. Send written comments to Ketchikan Resource Advisory Committee, c/o District Ranger,...

  9. 78 FR 64910 - Virginia Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-30

    ... Forest Service Virginia Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meetings. SUMMARY: The Virginia Resource Advisory Committee will meet in Roanoke, Virginia. The committee... 31, 2014: 10 a.m. to 6 p.m. February 7, 2014: 10 a.m. to 6 p.m. All Resource Advisory...

  10. 75 FR 46902 - Ketchikan Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-04

    ... Forest Service Ketchikan Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Ketchikan Resource Advisory Committee will meet in Ketchikan, Alaska, August 18..., Ketchikan, Alaska. Send written comments to Ketchikan Resource Advisory Committee, c/o District Ranger,...

  11. 75 FR 33241 - Coconino Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-11

    ... Forest Service Coconino Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Coconino Resource Advisory Committee will meet in Sedona, Arizona. The purpose of... Smith, RAC Coordinator, Coconino Resource Advisory Committee, c/o Forest Service, USDA, 1824 S....

  12. 76 FR 3081 - Sitka Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-19

    ... Forest Service Sitka Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Sitka Resource Advisory Committee will meet in Sitka, Alaska, February 15, 2011. The purpose... to Sitka Resource Advisory Committee, c/o District Ranger, USDA Forest Service, 204 Siginaka...

  13. 75 FR 39656 - Coconino Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-12

    ... Forest Service Coconino Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Coconino Resource Advisory Committee will meet in Flagstaff, Arizona. The purpose of..., Coconino Resource Advisory Committee, c/o Forest Service, USDA, 1824 S. Thompson St., Flagstaff,...

  14. 75 FR 52304 - Coconino Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-25

    ... Forest Service Coconino Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Coconino Resource Advisory Committee will meet in Flagstaff, Arizona. The purpose of... Coordinator, Coconino Resource Advisory Committee, do Forest Service. USDA, 1824 5. Thompson St.,...

  15. 76 FR 23537 - Resource Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-27

    ... Resource Advisory Committee Meeting AGENCY: Forest Service, USDA. ACTION: Notice of Public Meeting, Sabine National Forest Resource Advisory Committee. SUMMARY: In accordance with the Secure Rural Schools and..., Sabine National Forest Resource Advisory Committee (RAC) meeting will meet as indicated below. DATES:...

  16. 77 FR 54876 - Colville Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-06

    ... Forest Service Colville Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Colville Resource Advisory Committee will meet in Colville, Washington. The..., presentation and voting of 2012 Colville Resource Advisory Committee projects. The full agenda may be...

  17. 75 FR 61693 - Coconino Resource Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-06

    ... Forest Service Coconino Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Coconino Resource Advisory Committee will meet in Flagstaff, Arizona. The purpose of the meeting is to receive training on Resource Advisory Committees and National Environmental...

  18. 76 FR 55932 - National Advisory Council

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-09

    ... SECURITY Federal Emergency Management Agency National Advisory Council AGENCY: Federal Emergency Management... National Advisory Council will meet on September 27-28, 2011, in Arlington, VA. The meeting will be open to the public. DATES: The National Advisory Council will meet Tuesday, September 27, 2011, from 9:30...

  19. 75 FR 38086 - Technology Advisory Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-01

    ... COMMISSION Technology Advisory Committee Meeting The Commodity Futures Trading Commission's (``Commission'') Technology Advisory Committee will conduct a meeting on Wednesday, July 14, 2010, beginning at 1 p.m. The...://www.cftc.gov . This will be the first meeting of the reestablished Technology Advisory...

  20. 77 FR 15737 - Technology Advisory Committee

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-16

    ... COMMISSION Technology Advisory Committee AGENCY: Commodity Futures Trading Commission (``CFTC''). ACTION: Notice of meeting of Technology Advisory Committee. SUMMARY: The CFTC announces that on March 29, 2012, the CFTC's Technology Advisory Committee (``TAC'') will hold a public meeting at the CFTC's...