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Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Uncertainty-driven view planning for underwater inspection  

E-Print Network (OSTI)

We discuss the problem of inspecting an underwater structure, such as a submerged ship hull, with an autonomous underwater vehicle (AUV). In such scenarios, the goal is to construct an accurate 3D model of the structure ...

Hollinger, Geoffrey A.

2

Autonomous Underwater Gliders Wood, Stephen  

E-Print Network (OSTI)

26 Autonomous Underwater Gliders Wood, Stephen Florida Institute of Technology United States underwater vehicles to perform ocean surveys. With these vehicles it is now possible for the scientist substances in the ocean such as chemicals from an underwater vent or toxic algae such as red tide

Wood, Stephen L.

3

Intelligent Planning for Autonomous Underwater Vehicles  

E-Print Network (OSTI)

Intelligent Planning for Autonomous Underwater Vehicles Zeyn Saigol January 31, 2007 Supervisors Underwater Vehicles Classical planning systems Problem specification Markov Decision Processes 2 / 10 #12 in relaxing these planning under uncertainty Application area: Autonomous Underwater Vehicles (AUVs) used

Yao, Xin

4

Cooperative Localization for Autonomous Underwater Vehicles  

E-Print Network (OSTI)

This paper describes an algorithm for distributed acoustic navigation for Autonomous Underwater Vehicles

Bahr, Alexander

5

Autonomous Underwater Vehicle–Based Hydrographic Sampling  

Science Conference Proceedings (OSTI)

An autonomous underwater vehicle (AUV), the U.S. Navy’s Large Diameter Unmanned Underwater Vehicle (LDUUV), was used as a stable platform for rapid, repeated, near-synoptic CTD measurements of estuarine variability in Narragansett Bay. Surveys ...

Edward R. Levine; Donald N. Connors; Richard R. Shell; Robert C. Hanson

1997-12-01T23:59:59.000Z

6

Path planning methods for Autonomous Underwater Vehicles  

E-Print Network (OSTI)

From naval operations to ocean science missions, the importance of autonomous vehicles is increasing with the advances in underwater robotics technology. Due to the dynamic and intermittent underwater environment and the ...

Yi?it, Konuralp

2011-01-01T23:59:59.000Z

7

Trajectory Design and Implementation for Multiple Autonomous Underwater Vehicles Based on Ocean Model Predictions  

E-Print Network (OSTI)

for Multiple Autonomous Underwater Vehicles Based on OceanAUVs) • Autonomous Underwater Vehicles Evolving ocean

2009-01-01T23:59:59.000Z

8

Cooperative Localization for Autonomous Underwater Vehicles  

Science Conference Proceedings (OSTI)

This paper describes an algorithm for distributed acoustic navigation for Autonomous Underwater Vehicles (AUVs). Whereas typical AUV navigation systems utilize pre-calibrated arrays of static transponders, our work seeks to create a fully mobile network ... Keywords: autonomous underwater vehicles, cooperative navigation, mobile robotics, sensor networks

Alexander Bahr; John J. Leonard; Maurice F. Fallon

2009-06-01T23:59:59.000Z

9

Turbulence Measurement from an Autonomous Underwater Vehicle  

Science Conference Proceedings (OSTI)

Horizontal profiles of the microstructure of velocity and temperature were obtained with a large autonomous underwater vehicle (AUV) using two piezoelectric shear probes, an FP07 thermistor, and three orthogonal accelerometers mounted on a sting ...

Edward R. Levine; Rolf G. Lueck

1999-11-01T23:59:59.000Z

10

Design considerations for engineering Autonomous Underwater Vehicles  

E-Print Network (OSTI)

Autonomous Underwater Vehicles (AUVs) have been established as a viable tool for Oceanographic Sciences. Being untethered and independent, AUVs fill the gap in Ocean Exploration left by the existing manned submersible and ...

Shah, Vikrant P. (Vikrant Pankaj)

2007-01-01T23:59:59.000Z

11

XAUV : modular high maneuverability autonomous underwater vehicle  

E-Print Network (OSTI)

The design and construction of a modular test bed autonomous underwater vehicle (AUV) is analyzed. Although a relatively common stacked-hull design is used, the state of the art is advanced through an aggressive power ...

Walker, Daniel G. (Daniel George)

2009-01-01T23:59:59.000Z

12

Design and Control of Autonomous Underwater Robots: A Survey  

Science Conference Proceedings (OSTI)

During the 1990s, numerous worldwide research and development activities have occurred in underwater robotics, especially in the area of autonomous underwater vehicles (AUVs). As the ocean attracts great attention on environmental issues and resources ... Keywords: autonomous underwater vehicles, underwater navigation and control, underwater robots

J. Yuh

2000-01-01T23:59:59.000Z

13

LFT/H varying sampling control for Autonomous Underwater Vehicles  

E-Print Network (OSTI)

LFT/H varying sampling control for Autonomous Underwater Vehicles E. Roche , O. Sename D. Simon: This paper deals with the robust control of an Autonomous Underwater Vehicle (AUV) subject to communication. INTRODUCTION In this paper the H approach for LPV systems is applied to an Autonomous Underwater Vehicle (AUV

Paris-Sud XI, Université de

14

www.postersession.com Autonomous Underwater Vehicles of the Underwater Technology Laboratory  

E-Print Network (OSTI)

printed by www.postersession.com Autonomous Underwater Vehicles of the Underwater Technology at depths to 6000 meters. The system will comprise of four key components: 1) an autonomous underwater vehicle (AUV), 2) an underwater refueling and information exchange station, 3) an oceanographic mooring

Wood, Stephen L.

15

Modelling and control of underwater inspection vehicle for aquaculture sites.  

E-Print Network (OSTI)

?? Underwater vehicles such as AUVs and ROVs with hovering capabilities is a promising method for inspection of net integrity in large scale, sea based,… (more)

Hval, Mats Nåvik

2012-01-01T23:59:59.000Z

16

Autonomous adaptive environmental assessment and feature tracking via autonomous underwater vehicles  

E-Print Network (OSTI)

In the underwater environment, spatiotemporally dynamic environmental conditions pose challenges to the detection and tracking of hydrographic features. A useful tool in combating these challenge is Autonomous Adaptive ...

Petillo, Stephanie Marie

17

Modeling and control of a biorobotic autonomous underwater vehicle  

E-Print Network (OSTI)

Current research into Autonomous Underwater Vehicles (AUVs) has included work on biologically inspired propulsion mechanisms, for instance flapping foils. The first aim of this thesis is to develop an accurate non-linear ...

Booth, William Duncan Lewis

2006-01-01T23:59:59.000Z

18

Autonomous underwater vehicle navigation and mapping in dynamic, unstructured environments  

E-Print Network (OSTI)

This thesis presents a system for automatically building 3-D optical and bathymetric maps of underwater terrain using autonomous robots. The maps that are built improve the state of the art in resolution by an order of ...

Kunz, Clayton Gregory

2012-01-01T23:59:59.000Z

19

An Autonomous Underwater Vehicle for the Study of Small Lakes  

Science Conference Proceedings (OSTI)

A small autonomous underwater vehicle (AUV) was designed and built to carry a wide variety of oceanographic sensors in the relatively benign lacustrine environment. PURLII navigates along preprogrammed paths for up to 3 h using compass, depth, ...

Bernard Laval; John S. Bird; Peter D. Helland

2000-01-01T23:59:59.000Z

20

Path planning of Autonomous Underwater Vehicles for adaptive sampling  

E-Print Network (OSTI)

This thesis develops new methods for path planning of Autonomous Underwater Vehicles for adaptive sampling. The problem is approached in an optimization framework and two methods are developed to solve it based on Mixed ...

Yilmaz, Namik Kemal, 1975-

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Imaging sonar-aided navigation for autonomous underwater harbor surveillance  

E-Print Network (OSTI)

In this paper we address the problem of drift-free navigation for underwater vehicles performing harbor surveillance and ship hull inspection. Maintaining accurate localization for the duration of a mission is important ...

Johannsson, Hordur

22

State Estimation Strategies for Autonomous Underwater Vehicle Fish Tracking Applications  

E-Print Network (OSTI)

I hereby declare that I am the sole author of this thesis. This is a true copy of the thesis, including any required final revisions, as accepted by my examiners. I understand that my thesis may be made electronically available to the public. Jun Zhou ii As the largest unexplored area on earth, the underwater world has unlimited attraction to marine scientists. Due to the complexity of the underwater environment and the limitations of human divers, underwater exploration has been facilitated by the use of submarines, Remotely Operated Vehicles (ROVs) and Autonomous Underwater Vehicles (AUVs). In recent years, use of autonomous control systems being integrated with visual sensors has increased substantially, especially in marine applications involving guidance of AUVs. In this work, autonomous fish-tracking via AUV with vision servoing control system is studied with the purpose of assisting marine biologists in gathering detailed

Jun Zhou

2007-01-01T23:59:59.000Z

23

Copyright Journal of Ocean Technology 2009 Underwater Intervention, Vol. 4, No. 1, 2009 7 Autonomous Underwater Gliders (AUGs) are  

E-Print Network (OSTI)

Copyright Journal of Ocean Technology 2009 Underwater Intervention, Vol. 4, No. 1, 2009 7 Autonomous Underwater Gliders (AUGs) are becoming the tool of choice for oceanographers to collect in of Ocean Gliders A glider is a type of autonomous underwater vehicle (AUV) that is able to move for weeks

deYoung, Brad

24

Virtual long baseline (VLBL) autonomous underwater vehicle navigation using a single transponder  

E-Print Network (OSTI)

(cont.) Therefore, accurate underwater navigation using a single location transponder would provide dramatic time and cost savings for underwater vehicle operations. This thesis presents a simulation of autonomous underwater ...

LaPointe, Cara Elizabeth Grupe

2006-01-01T23:59:59.000Z

25

Cooperative localization for autonomous underwater vehicles  

E-Print Network (OSTI)

Self-localization of an underwater vehicle is particularly challenging due to the absence of Global Positioning System (GPS) reception or features at known positions that could otherwise have been used for position ...

Bahr, Alexander

2009-01-01T23:59:59.000Z

26

Abstract-Homing and navigation capabilities are essential for many Autonomous Underwater Vehicle  

E-Print Network (OSTI)

Abstract- Homing and navigation capabilities are essential for many Autonomous Underwater Vehicle, speed bias and underwater currents affect dead-reckoning measurements. All operation need to have INTRODUCTION Actually, there is a real challenge on application of Autonomous Underwater Vehicle, particularly

Paris-Sud XI, Université de

27

From PD to Nonlinear Adaptive Depth-Control of a Tethered Autonomous Underwater Vehicle  

E-Print Network (OSTI)

From PD to Nonlinear Adaptive Depth-Control of a Tethered Autonomous Underwater Vehicle D and an adaptive nonlinear state feedback one, both applied on a tethered autonomous underwater vehicle. The aim performed using each of the above mentioned control laws. Keywords: Underwater robotics, Depth control

Paris-Sud XI, Université de

28

Analysis of using fuel cell technology for autonomous underwater vehicle power supply  

Science Conference Proceedings (OSTI)

Nowadays underwater robotics aims at semi or whole autonomous underwater vehicles. Autonomy of underwater robots depends on their control systems usually based on artificial intelligence methods and capacity of supply sources mounted on their boards. ... Keywords: fuel cell, underwater vehicle power supply

Grzegorz Grzeczka; Piotr Szymak

2009-05-01T23:59:59.000Z

29

Design of an autonomous underwater vehicle : vehicle tracking and position control.  

E-Print Network (OSTI)

??This project proposes the development of an autonomous underwater vehicle that can be used to perform underwater research missions..The vehicle can be pre-programmed to complete… (more)

Holtzhausen, Servaas.

2010-01-01T23:59:59.000Z

30

Open loop performance of a biomimetic flapping foil autonomous underwater vehicle  

E-Print Network (OSTI)

Flapping foil propulsion is emerging as an alternative to conventional propulsion for underwater vehicles. MIT's Biomimetic Flapping Foil Autonomous Underwater Vehicle is a prototype vehicle that uses four three-dimensional ...

Wolf, Malima Isabelle, 1981-

2006-01-01T23:59:59.000Z

31

Implementation of a wireless underwater video link  

E-Print Network (OSTI)

Autonomous underwater vehicles (AUVs) are increasingly being considered for remotely supervised missions, primarily for routine subsea inspection tasks currently performed by tethered remotely operated vehicles (ROVs). ...

Morash, James Paul

2008-01-01T23:59:59.000Z

32

Path planning methods for Autonomous Underwater Vehicles; Path planning methods for AUVs.  

E-Print Network (OSTI)

??From naval operations to ocean science missions, the importance of autonomous vehicles is increasing with the advances in underwater robotics technology. Due to the dynamic… (more)

Yi?it, Konuralp

2011-01-01T23:59:59.000Z

33

Control and guidance systems for the navigation of a biomimetic autonomous underwater vehicle.  

E-Print Network (OSTI)

??The field of Autonomous Underwater Vehicles (AUVs) has increased dramatically in size and scope over the past three decades. Application areas for AUVs are numerous… (more)

Tonello, Alberto

2011-01-01T23:59:59.000Z

34

Virtual Long Baseline (VLBL) autonomous underwater vehicle navigation using a single transponder .  

E-Print Network (OSTI)

??This thesis presents a simulation of autonomous underwater vehicle navigation using a single transponder to create a virtual long baseline (VLBL). Similarly to LBL systems,… (more)

LaPointe, Cara E. G.

2006-01-01T23:59:59.000Z

35

Verification of a six-degree of freedom simulation model for the REMUS autonomous underwater vehicle  

E-Print Network (OSTI)

mproving the performance of modular, low-cost autonomous underwater vehicles (AUVs) in such applications as long-range oceanographic survey, autonomous docking, and shallow-water mine countermeasures requires improving the ...

Prestero, Timothy (Timothy Jason), 1970-

2001-01-01T23:59:59.000Z

36

Using a High Order Sliding Modes for diving control a torpedo Autonomous Underwater Vehicle  

E-Print Network (OSTI)

Using a High Order Sliding Modes for diving control a torpedo Autonomous Underwater Vehicle T Underwater Vehicle AUV is not a trivial task, due to: Parameter uncertainties (as added mass, hydrodynamic underwater robots are basically two: PD [2] [10] and Sliding Modes Control (SMC) [6] [11]. These algorithms

Paris-Sud XI, Université de

37

Towards Localization and Mapping of Autonomous Underwater Vehicles: A Survey  

E-Print Network (OSTI)

Autonomous Underwater Vehicles (AUVs) have been used for a huge number of tasks ranging from commercial, military and research areas etc, while the fundamental function of a successful AUV is its localization and mapping ability. This report aims to review the relevant elements of localization and mapping for AUVs. First, a brief introduction of the concept and the historical development of AUVs is given; then a relatively detailed description of the sensor system used for AUV navigation is provided. As the main part of the report, a comprehensive investigation of the simultaneous localization and mapping (SLAM) for AUVs are conducted, including its application examples. Finally a brief conclusion

Ling Chen; Huosheng Hu

2011-01-01T23:59:59.000Z

38

Optical Delineation of Benthic Habitat Using an Autonomous Underwater Vehicle  

SciTech Connect

To improve understanding and characterization of coastal regions, there has been an increasing emphasis on autonomous systems that can sample the ocean on relevant scales. Autonomous underwater vehicles (AUVs) with active propulsion are especially well suited for studies of the coastal ocean because they are able to provide systematic and near-synoptic spatial observations. With this capability, science users are beginning to integrate sensor suits for a broad range of specific and often novel applications. Here, the relatively mature Remote Environmental Monitoring Units (REMUS) AUV system is configured with multi-spectral radiometers to delineate benthic habitat in Sequim Bay, WA. The vehicle was deployed in a grid pattern along 5 km of coastline in depths from 30 to less than 2 meters. Similar to satellite and/or aerial remote sensing, the bandwidth ratios from the downward looking radiance sensor and upward looking irradiance sensor were used to identify beds of eelgrass on sub-meter scales. Strong correlations were found between the optical reflectance signals and the geo-referenced in situ data collected with underwater video within the grid. Results demonstrate the ability of AUVs to map littoral habitats at high resolution and highlight the overall utility of the REMUS vehicle for nearshore oceanography.

Moline, Mark A.; Woodruff, Dana L.; Evans, Nathan R.

2007-06-01T23:59:59.000Z

39

State Estimation Strategies for Autonomous Underwater Vehicle Fish Tracking Applications.  

E-Print Network (OSTI)

??As the largest unexplored area on earth, the underwater world has unlimited at traction to marine scientists. Due to the complexity of the underwater environment… (more)

Zhou, Jun Jay

2008-01-01T23:59:59.000Z

40

Determining Turbulent Vertical Velocity, and Fluxes of Heat and Salt with an Autonomous Underwater Vehicle  

Science Conference Proceedings (OSTI)

The authors show that vertical turbulent fluxes in the upper ocean can be measured directly with an autonomous underwater vehicle (AUV). A horizontal profile of vertical water velocity is obtained by applying a Kalman smoother to AUV motion data. ...

Daniel R. Hayes; James H. Morison

2002-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Dynamic response and maneuvering strategies of a hybrid autonomous underwater vehicle in hovering  

E-Print Network (OSTI)

The Odyssey IV autonomous underwater vehicle (AUV) is the next generation of unmanned subsurface robots from the MIT Sea Grant AUV Laboratory. The Odyssey IV AUV has a novel propulsion system, which includes a pair of ...

Cooney, Lauren Alise

2009-01-01T23:59:59.000Z

42

Acoustic Doppler Velocimeter Flow Measurement from an Autonomous Underwater Vehicle with Applications to Deep Ocean Convection  

Science Conference Proceedings (OSTI)

The authors present a new modality for direct measurement of ocean flow, achieved by combining the resolution and precision of an acoustic Doppler velocimeter with the mobility of an autonomous underwater vehicle. To obtain useful measurements, ...

Yanwu Zhang; Knut Streitlien; James G. Bellingham; Arthur B. Baggeroer

2001-12-01T23:59:59.000Z

43

Remote Real-Time Video-Enabled Docking for Underwater Autonomous Platforms  

Science Conference Proceedings (OSTI)

One of the key challenges in the development and implementation of ocean observatories is sustained observations over relevant temporal and spatial scales. Autonomous underwater vehicles (AUVs) have demonstrated their potential for synoptic ...

Mark A. Moline; Oscar Schofield

2009-12-01T23:59:59.000Z

44

Collection of Water Samples from an Autonomous Underwater Vehicle for Tracer Analysis  

Science Conference Proceedings (OSTI)

A compact water sampler rated to full ocean depth has been deployed from an autonomous underwater vehicle (AUV) to enable oceanographic tracer measurements. Techniques developed to allow the instrument to collect up to 49 samples of sufficient ...

Paul A. Dodd; Martin R. Price; Karen J. Heywood; Miles Pebody

2006-12-01T23:59:59.000Z

45

Underwater Acoustic Localisation in the context of Autonomous Submersibles .  

E-Print Network (OSTI)

??With the advancement of the field of underwater robotics, the amount of autonomy embodied in the vehicles themselves have considerably increased while making it possible… (more)

Kottege, Navinda

2011-01-01T23:59:59.000Z

46

Sensor-based Behavior Control for an Autonomous Underwater Vehicle  

Science Conference Proceedings (OSTI)

In this paper, we evaluate a set of core functions that allow an underwater robot to perform surveillance under operator control. Specifically, we are interested in behaviors that facilitate the monitoring of organisms on a coral reef, and we present ... Keywords: Underwater robotics, adaptive gait control, computer vision, swimming robots, symbolic languages, visual human-robot interaction, visual servoing

Junaed Sattar; Philippe Giguère; Gregory Dudek

2009-06-01T23:59:59.000Z

47

Large scale structure from motion for autonomous underwater vehicle surveys  

E-Print Network (OSTI)

Our ability to image extended underwater scenes is severely limited by attenuation and backscatter. Generating a composite view from multiple overlapping images is usually the most practical and flexible way around this ...

Pizarro, Oscar

2004-01-01T23:59:59.000Z

48

Autonomous Depth Adjustment for Underwater Sensor Networks: Design and Applications  

E-Print Network (OSTI)

To fully understand the ocean environment requires sensing the full water column. Utilizing a depth adjustment system on an underwater sensor network provides this while also improving global sensing and communications. ...

Detweiler, Carrick

49

A Behavioral Probabilistic Risk Assessment Framework for Managing Autonomous Underwater Vehicle Deployments  

Science Conference Proceedings (OSTI)

The deployment of a deep-diving long-range autonomous underwater vehicle (AUV) is a complex operation that requires the use of a risk-informed decision-making process. Operational risk assessment is heavily dependent on expert subjective judgment. ...

Mario Brito; Gwyn Griffiths; James Ferguson; David Hopkin; Richard Mills; Richard Pederson; Erin MacNeil

2012-11-01T23:59:59.000Z

50

Underwater Glider System Study  

E-Print Network (OSTI)

Leonard, N. E. , “ONR Underwater Glider Systems Study GliderDavis. The Autonomous Underwater Glider Spray. IEEE Journalto the ONR Committee for Underwater Glider Systems Study,

2003-01-01T23:59:59.000Z

51

Autonomous Underwater Vehicle Measurements of Surface Wave Decay and Directional Spectra in the Marginal Sea Ice Zone  

Science Conference Proceedings (OSTI)

In March 2003 several autonomous underwater vehicle (AUV) missions were carried out under sea ice in the western Bellingshausen Sea. Data from the upward-looking acoustic Doppler current profiler (ADCP) on the “Autosub” AUV indicate a strongly ...

Daniel R. Hayes; Adrian Jenkins; Stephen McPhail

2007-01-01T23:59:59.000Z

52

Design of an autonomous underwater vehicle to evaluate the blazed array sonar and simultaneous localization and mapping algorithms  

E-Print Network (OSTI)

This thesis has investigated aspects of the design of a new highly maneuverable Autonomous Underwater Vehicle - the XAUV. The overall goal for the design of this vehicle is to create a small, highly maneuverable AUV that ...

Uhle, Matthew William

2007-01-01T23:59:59.000Z

53

Progressively communicating rich telemetry from autonomous underwater vehicles via relays  

E-Print Network (OSTI)

As analysis of imagery and environmental data plays a greater role in mission construction and execution, there is an increasing need for autonomous marine vehicles to transmit this data to the surface. Without access to ...

Murphy, Christopher Alden

2012-01-01T23:59:59.000Z

54

A Small Submarine Robot for Experiments in Underwater Sensor Networks  

E-Print Network (OSTI)

The Development of Autonomous Underwater Vehicles (AUVs); AA Solar Powered Autonomous Underwater Vehi- cle System,The Phoenix Autonomous Underwater Vehicle, chapter 13, AI-

V. Bokser; C. Oberg; G. Sukhatme; A. Requicha

2004-01-01T23:59:59.000Z

55

Experiments with Underwater Robot Localization and Tracking  

E-Print Network (OSTI)

J. S. Feder, “Autonomous underwater vehicle navigation,” MITfor an autonomous underwater reef monitoring robot,” intechniques applied to an underwater vehicle,” in Proceedings

Corke, Peter; Detwiler, Carrick; Dunbabin, Matthew; Hamilton, Michael; Rus, Daniela; Vasilescu, Iuliu

2007-01-01T23:59:59.000Z

56

Robust Vision-based Underwater Target Identification & Homing Using Self-Similar  

E-Print Network (OSTI)

Robust Vision-based Underwater Target Identification & Homing Using Self-Similar Landmarks Amaury. Next generation Autonomous Underwater Vehicles (AUVs) will be re- quired to robustly identify underwater targets for tasks such as inspection, locali- sation and docking. Given their often unstructured

Paris-Sud XI, Université de

57

SOLAR-POWERED AUTONOMOUS UNDERWATER VEHICLE DEVELOPMENT James Jalbert, John Baker, John Duchesney, Paul Pietryka, William Dalton  

E-Print Network (OSTI)

SOLAR-POWERED AUTONOMOUS UNDERWATER VEHICLE DEVELOPMENT James Jalbert, John Baker, John Duchesney in such applications. The concept of a vehicle that would allow on-station recharging of batteries, using solar cells-term or ongoing deployment is required. The Solar Powered AUV (SAUV) is designed for continuous deployment (weeks

58

Computer vision techniques for underwater navigation  

E-Print Network (OSTI)

Vision Techniques for Underwater Navigation A thesisand J. Amat. Positioning an underwater vehicle through imageand S. Feder. Autonomous Underwater Vehicle Navigation. MIT

Barngrover, Christopher M.

2010-01-01T23:59:59.000Z

59

High-Resolution Topography-Following Chemical Mapping of Ocean Hypoxia by Use of an Autonomous Underwater Vehicle: The Santa Monica Basin Example  

Science Conference Proceedings (OSTI)

We report on the execution of a combined chemical sensing/high-resolution terrain-following autonomous underwater vehicle (AUV) survey to explore the fine structure and functional boundaries of the Santa Monica Basin sub-oxic zone and its ...

Andreas F. Hofmann; Peter M. Walz; Hans Thomas; Edward T. Peltzer; Peter G. Brewer

60

A peak-capture algorithm used on an autonomous underwater vehicle in the 2010 Gulf of Mexico oil spill response scientific survey  

Science Conference Proceedings (OSTI)

During the Gulf of Mexico Oil Spill Response Scientific Survey on the National Oceanic and Atmospheric Administration Ship Gordon Gunter Cruise GU-10-02 (27 May–4 June 2010), a Monterey Bay Aquarium Research Institute autonomous underwater vehicle ...

Yanwu Zhang; Robert S. McEwen; John P. Ryan; James G. Bellingham; Hans Thomas; Charles H. Thompson; Erich Rienecker

2011-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Trajectory Design and Implementation for Multiple Autonomous Underwater Vehicles Based on Ocean Model Predictions  

E-Print Network (OSTI)

Underwater Vehicles Based on Ocean Model Predictions Ryan N.Trajectory Design based on Ocean Model Predictions PredictEffective tracking of ocean features Gather specific in situ

2009-01-01T23:59:59.000Z

62

A data link layer in support of swarming of autonomous underwater vehicles.  

E-Print Network (OSTI)

??Communication underwater is challenging because of the inherent characteristics of the media. First, common radio frequency (RF) signals utilized in wireless communications cannot be used… (more)

Jabba Molinares, Daladier

2009-01-01T23:59:59.000Z

63

Hydrodynamic Modeling for Autonomous Underwater Vehicles Using Computational and Semi-Empirical Methods.  

E-Print Network (OSTI)

??Buoyancy driven underwater gliders, which locomote by modulating their buoyancy and their attitude with moving mass actuators and inflatable bladders, are proving their worth as… (more)

Geisbert, Jesse Stuart

2007-01-01T23:59:59.000Z

64

A MOOS MODULE FOR MONITORING ENERGY USAGE OF AUTONOMOUS VEHICLES  

E-Print Network (OSTI)

A MOOS MODULE FOR MONITORING ENERGY USAGE OF AUTONOMOUS VEHICLES Anthony Kanago, Kevin Roos, James--Tracking the energy usage of an autonomous underwater vehicle (AUV) and making accurate data available provides especially effectively in energy-aware systems, allowing inspection vehicles (which typically travel farther

Idaho, University of

65

Autonomous underwater data muling using wireless optical communication and agile AUV control  

E-Print Network (OSTI)

Underwater exploration and surveillance currently relies on subsea cables and tethers to relay data back to the user. The cause for this is that water heavily absorbs most electromagnetic signals, preventing effective radio ...

Doniec, Marek Wojciech

2013-01-01T23:59:59.000Z

66

Upper ocean processes observed by underwater gliders in the California Current System  

E-Print Network (OSTI)

region using autonomous underwater gliders during fall of73 Chapter 4 Underwater gliders reveal rapid arrivaland M. D. Ohman (2011), Underwater gliders reveal rapid

Todd, Robert E.

2011-01-01T23:59:59.000Z

67

Risk-based Inspection Scheduling Planning for Intelligent Agent in the Autonomous Fault Management  

SciTech Connect

This paper developed an autonomous fault management focusing to the inspection scheduling planning which was implemented to the advanced small nuclear reactor without on-site refuelling to assure the safety without human intervention. The inspection scheduling planning was developed optimally on the risk-based approach compromising between two important constraints related to the risk of action planning as such failure probability and shortest path. Performance was represented using computer simulation implemented to the DURESS components location and failure probability. It could be concluded that the first priority to be inspected was flow sensor FB2 which had the largest comparation value of 0.104233 comparing with the other components. The next route would be visited were sequentially FB1, FA2, FA1, FB, FA, VB, pump B, VA, pump A, VB2, VB1, VA2, VA1, reservoir 2, reservoir 1, FR2, and FR1. The movement route planning could be transferred to activate the robot arm which reflected as intelligent agent.

Hari Nugroho, Djoko; Sudarno [Center for Reactor Technology and Nuclear Safety-BATAN, Indonesia Building no 80 PUSPIPTEK Area, Serpong (Indonesia)

2010-06-22T23:59:59.000Z

68

Submesoscale Coastal Ocean Flows Detected by Very High Frequency Radar and Autonomous Underwater Vehicles  

Science Conference Proceedings (OSTI)

Over a 29-day time series in July 1999, an ocean surface current radar (OSCR) in very high frequency (VHF) mode mapped the surface velocity field at 250-m resolution at 700 cells off Fort Lauderdale, Florida. During the experiment, autonomous ...

Lynn K. Shay; Thomas M. Cook; P. Edgar An

2003-11-01T23:59:59.000Z

69

Design and control of a spheroidal underwater robot for the inspection of nuclear piping systems  

E-Print Network (OSTI)

While it is critical that nuclear plants frequently inspect their facilities for cracking, corrosion or other failure modes, humans cannot safely perform these tasks due to the hazardous conditions within the tanks and ...

Lozano, Martin, Jr

2012-01-01T23:59:59.000Z

70

HIERARCHICAL HYBRID-MODEL BASED DESIGN, VERIFICATION, SIMULATION, AND SYNTHESIS OF MISSION CONTROL FOR AUTONOMOUS UNDERWATER VEHICLES.  

E-Print Network (OSTI)

??The objective of modeling, verification, and synthesis of hierarchical hybrid mission control for underwater vehicle is to (i) propose a hierarchical architecture for mission control… (more)

Bhattacharyya, Siddhartha

2005-01-01T23:59:59.000Z

71

Target tracking onboard an autonomous underwater vehicle: determining optimal towed array heading in an anisotropic noise field .  

E-Print Network (OSTI)

??In order to overcome the challenges that an anisotropic noise field poses for underwater target tracking, we conduct an onboard estimation of the horizontal noise… (more)

Parra-Orlandoni, Maria Alejandra.

2007-01-01T23:59:59.000Z

72

Autonomous Underwater Vehicle (AUV) path planning and adaptive on-board routing for adaptive rapid environmental assessment  

E-Print Network (OSTI)

In shallow water, a large part of underwater acoustic prediction uncertainties are induced by sub-meso-to-small scale oceanographic variabilities. Conventional oceanographic measurements for capturing such ocean-acoustic ...

Wang, Ding, Ph. D. Massachusetts Institute of Technology

2007-01-01T23:59:59.000Z

73

Underwater wireless communications have witnessed major developments in recent years, especially in the last decade. While the first generation of applications involved just a single transmitter and receiver communicating at low bit-rates, nowadays un-  

E-Print Network (OSTI)

Underwater wireless communications have witnessed major developments in recent years, especially applications range from autonomous observation systems to cooperative missions between autonomous underwater layer for underwater networks. The underwater acoustic channel shows some unique characteristics

Stojanovic, Milica

74

Design, implementation and performance evaluation of security services for Underwater Acoustic Networks.  

E-Print Network (OSTI)

??Underwater Acoustic Networks (UANs), composed by Autonomous Underwater Vehicles (AUVs) are part of a new network paradigm that is being proposed for different uses like… (more)

MASSANTI, GIULIANO

2011-01-01T23:59:59.000Z

75

Adhesion Force Control and Active Gravitational Compensation for Autonomous Inspection in LPG Storage Spheres  

Science Conference Proceedings (OSTI)

This paper presents a climbing robot based in wheel locomotion and magnetic adherence, a common mechanical topology applicable to a wide range of industrial tasks. The robot is applied to perform internal/external inspection in liquefied petroleum gas ... Keywords: climbing robot, adherence, storage spheres, dynamic control

Andre Schneider de Oliveira; Lucia Valeria Ramos de Arruda; Flavio Neves Jr.; Rodrigo Valerio Espinoza; Joao Pedro Battistella Nadas

2012-10-01T23:59:59.000Z

76

Underwater acoustic sensor networks: research challenges Ian F. Akyildiz *, Dario Pompili, Tommaso Melodia  

E-Print Network (OSTI)

Underwater acoustic sensor networks: research challenges Ian F. Akyildiz *, Dario Pompili, Tommaso September 2004; accepted 21 January 2005 Abstract Underwater sensor nodes will find applications navigation and tactical surveillance applications. Moreover, unmanned or autonomous underwater vehicles (UUVs

Baykal, Buyurman

77

Wireless Underwater Communications  

Science Conference Proceedings (OSTI)

The depths of the oceans have a high potential for future industrial development and applications. Robotic autonomous systems will greatly depend on a reliable communications channel with operators and equipment either performing joint operations or ... Keywords: Acoustic communications, Channel modelling, Networking mechanisms, Underwater

J. Poncela; M. C. Aguayo; P. Otero

2012-06-01T23:59:59.000Z

78

Data muling over underwater wireless sensor networks using an autonomus underwater vehicle  

E-Print Network (OSTI)

Abstract — We present algorithms, systems, and experimental results for underwater data muling. In data muling a mobile agent interacts with static agents to upload, download, or transport data to a different physical location. We consider a system comprising an Autonomous Underwater Vehicle (AUV) and many static Underwater Sensor Nodes (USN) networked together optically and acoustically. The AUV can locate the static nodes using vision and hover above the static nodes for data upload. We describe the hardware and software architecture of this underwater system, as well as experimental data. Index Terms — Underwater sensor networks, AUV, visionbased navigation, underwater robotics.

Matthew Dunbabin; Peter Corke; Iuliu Vasilescu; Daniela Rus

2006-01-01T23:59:59.000Z

79

Toward autonomous harbor surveillance  

E-Print Network (OSTI)

In this thesis we address the problem of drift-free navigation for underwater vehicles performing harbor surveillance and ship hull inspection. Maintaining accurate localization for the duration of a mission is important ...

Johannsson, Hordur

2010-01-01T23:59:59.000Z

80

Batoid Fishes: Inspiration for the Next Generation of Underwater Robots  

E-Print Network (OSTI)

P A P E R Batoid Fishes: Inspiration for the Next Generation of Underwater Robots A U T H O R-endurance swimming that can outperform current underwater vehicle technology in the areas of stealth, maneuverability batoid fishes an ideal platform to emulate in the design of a bio-inspired autonomous underwater vehicle

Fish, Frank

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Underwater cities  

NLE Websites -- All DOE Office Websites (Extended Search)

Underwater cities Name: hasinoff Location: NA Country: NA Date: NA Question: I have a student who is doing a project on underwater cities. What are the most important technical...

82

Proceedings of the 2008 IFAC Workshop on Navigation, Guidance and Control of Underwater Vehicles  

E-Print Network (OSTI)

Proceedings of the 2008 IFAC Workshop on Navigation, Guidance and Control of Underwater Vehicles Autonomous Underwater Multivehicle Control with Limited Communication: Theory and Experiment Daniel J. Klein underwater vehicles linked via underwater communi- cation. By treating heading angle as oscillator phase

Morgansen, Kristi

83

Communication protocols for underwater data collection using a robotic sensor network  

E-Print Network (OSTI)

We examine the problem of collecting data from an underwater sensor network using an autonomous underwater vehicle (AUV). The sensors in the network are equipped with acoustic modems that provide noisy, range-limited ...

Singh, Hanumant

2013-05-01T23:59:59.000Z

84

Underwater Acoustic Sensor Networks: Research Challenges  

E-Print Network (OSTI)

Underwater sensor nodes will find applications in oceanographic data collection, pollution monitoring, o#shore exploration, disaster prevention, assisted navigation and tactical surveillance applications. Moreover, unmanned or autonomous underwater vehicles (UUVs, AUVs), equipped with sensors, will enable the exploration of natural undersea resources and gathering of scientific data in collaborative monitoring missions. Underwater acoustic networking is the enabling technology for these applications. Underwater networks consist of a variable number of sensors and vehicles that are deployed to perform collaborative monitoring tasks over a given area.

Ian Akyildiz Dario; Ian F. Akyildiz; Dario Pompili; Tommaso Melodia

2005-01-01T23:59:59.000Z

85

Underwater Acoustic Sensor Networks: Research Challenges  

E-Print Network (OSTI)

Underwater sensor nodes will find applications in oceanographic data collection, pollution monitoring, o#shore exploration, disaster prevention, assisted navigation and tactical surveillance applications. Moreover, unmanned or autonomous underwater vehicles (UUVs, AUVs), equipped with sensors, will enable the exploration of natural undersea resources and gathering of scientific data in collaborative monitoring missions. Underwater acoustic networking is the enabling technology for these applications. Underwater networks consist of a variable number of sensors and vehicles that are deployed to perform collaborative monitoring tasks over a given area. In this

Ian F. Akyildiz; Dario Pompili; Tommaso Melodia

2005-01-01T23:59:59.000Z

86

Abstract--The inspection of large concrete walls with autonomous systems is still an unsolved problem. One of the  

E-Print Network (OSTI)

is the inspection of concrete walls like bridges, cooling towers or dams. E.g. almost 90% of all motorway bridges structures like cooling towers, tunnels and others, preferably the ones made from reinforced and prestressed

Berns, Karsten

87

Experiments with Cooperative Control of Underwater Robots  

E-Print Network (OSTI)

In this paper we describe cooperative control algorithms for robots and sensor nodes in an underwater environment. Cooperative navigation is defined as the ability of a coupled system of autonomous robots to pool their resources to achieve long-distance navigation and a larger controllability space. Other types of useful cooperation in underwater environments include: exchange of information such as data download and retasking; cooperative localization and tracking; and physical connection (docking) for tasks such as deployment of underwater sensor networks, collection of nodes, and rescue of damaged robots. We present experimental results obtained with an underwater system that consists of two very different robots and a number of sensor network modules. We present the hardware and software architecture of this underwater system. We then describe various interactions between the robots and sensor nodes and between the two robots, including cooperative navigation. Finally, we describe our experiments with this underwater system and present data. 1

Matthew Dunbabin; Iuliu Vasilescu; Peter Corke; Daniela Rus

2008-01-01T23:59:59.000Z

88

Wireless Sensor Networks for Underwater Localization: A Survey  

E-Print Network (OSTI)

Autonomous Underwater Vehicles (AUVs) have widely deployed in marine investigation and ocean exploration in recent years. As the fundamental information, their position information is not only for data validity but also for many real-world applications. Therefore, it is critical for the AUV to have the underwater localization capability. This report is mainly devoted to outline the recent advancement of Wireless Sensor Networks (WSN) based underwater localization. Several classic architectures designed for Underwater Acoustic Sensor Network (UASN) are briefly introduced. Acoustic propagation and channel models are described and several ranging techniques are then explained. Many state-of-the-art underwater localization algorithms are introduced, followed by the outline of some

Sen Wang; Huosheng Hu

2012-01-01T23:59:59.000Z

89

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Riviera Beach, FL Autonomous Underwater Inspection Using 3D Laser Develop, integrate and test technologies for Autonomous Underwater Vehicles (AUV)-based inspection, including...

90

Autonomous Exploration and Mapping of Flooded Sinkholes  

Science Conference Proceedings (OSTI)

In this paper, we describe the control, navigation, and mapping methods that were developed for a hovering autonomous underwater vehicle that explored flooded cenotes in Mexico. The cenotes of Sistema Zacatón in Tamaulipas, Mexico are flooded ...

Nathaniel Fairfield; George Kantor; Dominic Jonak; David Wettergreen

2010-05-01T23:59:59.000Z

91

Challenges for Efficient Communication in Underwater Acoustic Sensor Networks  

E-Print Network (OSTI)

Abstract — Ocean bottom sensor nodes can be used for oceanographic data collection, pollution monitoring, offshore exploration and tactical surveillance applications. Moreover, Unmanned or Autonomous Underwater Vehicles (UUVs, AUVs), equipped with sensors, will find application in exploration of natural undersea resources and gathering of scientific data in collaborative monitoring missions. Underwater acoustic networking is the enabling technology for these applications. Underwater Networks consist of a variable number of sensors and vehicles that are deployed to perform collaborative monitoring tasks over a given area. In this paper, several fundamental key aspects of underwater acoustic communications are investigated. Different architectures for two-dimensional and three-dimensional underwater sensor networks are discussed, and the underwater channel is characterized. The main challenges for the development of efficient networking solutions posed by the underwater environment are detailed at all layers of the protocol stack. Furthermore, open research issues are discussed and possible solution approaches are outlined. I.

Ian F. Akyildiz; Dario Pompili; Tommaso Melodia

2004-01-01T23:59:59.000Z

92

Algorithms and analysis for underwater vehicle plume tracing.  

SciTech Connect

The goal of this research was to develop and demonstrate cooperative 3-D plume tracing algorithms for miniature autonomous underwater vehicles. Applications for this technology include Lost Asset and Survivor Location Systems (L-SALS) and Ship-in-Port Patrol and Protection (SP3). This research was a joint effort that included Nekton Research, LLC, Sandia National Laboratories, and Texas A&M University. Nekton Research developed the miniature autonomous underwater vehicles while Sandia and Texas A&M developed the 3-D plume tracing algorithms. This report describes the plume tracing algorithm and presents test results from successful underwater testing with pseudo-plume sources.

Byrne, Raymond Harry; Savage, Elizabeth L. (Texas A& M University, College Station, TX); Hurtado, John Edward (Texas A& M University, College Station, TX); Eskridge, Steven E.

2003-07-01T23:59:59.000Z

93

AUTONOMOUS ROBOTIC INSPECTION EXPERIMENTAL SYSTEM  

Science Conference Proceedings (OSTI)

This document contains appendices on these topics: COMPUTERS AND CONTROLS; COMPUTER VISION SYSTEM; ELECTRICAL SYSTEMS; MECHANICAL SYSTEMS; ROBOTIC VEHICLE SYSTEMS; FIELD TRIALS.

David N. Rocheleau, Senior Investigator; Edward A. Hamilton, Associate Director, SCUREF; Jerry L. Hudgins, Senior Investigator; Paul McCarty, Graduate Research Assistant; Robert J. Schalkoff, Senior Investigator; Robert O. Pettus, Project Manager & Principal Investigator

1998-08-01T23:59:59.000Z

94

The underwater radiance distribution problem  

E-Print Network (OSTI)

THE UNDERWATER RADIANCE DISTRIBUTION PROBLEM S. Q. DuntleyFunction of Depth in an Underwater Environment," which firsta Function of Depth in an Underwater Environment," which has

Duntley, Seibert Q

1959-01-01T23:59:59.000Z

95

Underwater Mortgages  

E-Print Network (OSTI)

House prices have fallen approximately 30 % from their peak in 2006, accompanied by a level of defaults and foreclosures without precedent in the post-World War II era. Many homeowners have mortgages with principal amounts higher than the market value of their properties. In general, though, the rational default point is below the “underwater ” point where house price equals the remaining loan balance, and depends on prospects for future house price appreciation and borrower default costs. Housing market analysts often explain mortgage defaults as a consequence of life events such as divorce, illness, or job loss. No doubt, such events figure importantly in a borrower’s ability to repay a mortgage. However, except for unemployment, which varies with the business cycle, life events occur with unfortunate regularity. By contrast, mortgage default rates vary substantially over time. It is clear then that life events lead to defaults when they occur in combination with some other factor. It seems most likely that this other factor is a change in house prices. Default and foreclosure are costly for borrowers. They would rather avoid these expenses by selling their houses and prepaying their mortgages instead of defaulting. They can and will do so when house prices are increasing or flat. The default rate increases in periods when house prices have fallen, making mortgage prepayment through resale or refinancing difficult. Given the importance of falling house prices as a factor in defaults, it is natural to ask how far they must drop before it serves the borrower’s rational interest to strategically default, that is, to walk away from a mortgage even in the absence of a life event. A common answer is that house prices must fall to a point where the value of the house is less than the remaining loan balance, or when the house is “underwater ” (see Thaler 2010, for example). The map in Figure 1 estimates the incidence of underwater first-lien mortgages in 2000. We do not know the actual values of the underlying properties

Krainer; Stephen Leroy

2010-01-01T23:59:59.000Z

96

Underwater manipulator  

DOE Patents (OSTI)

Self-contained, waterproof, water-submersible, remote-controlled apparatus is provided for manipulating a device, such as an ultrasonic transducer for measuring crack propagation on an underwater specimen undergoing shock testing. The subject manipulator includes metal bellows for transmittal of angular motions without the use of rotating shaft seals or O-rings. Inside the manipulator, a first stepper motor controls angular movement. In the preferred embodiment, the bellows permit the first stepper motor to move an ultrasonic transducer .+-.45 degrees in a first plane and a second bellows permit a second stepper motor to move the transducer .+-.10 degrees in a second plane orthogonal to the first. In addition, an XY motor-driven table provides XY motion.

Schrum, Phillip B. (Clairton, PA); Cohen, George H. (Pittsburgh, PA)

1993-01-01T23:59:59.000Z

97

Underwater manipulator  

DOE Patents (OSTI)

This invention is comprised of a self-contained, waterproof, water-submersible, remote-controlled apparatus provided for manipulating a device, such as an ultrasonic transducer for measuring crack propagation on an underwater specimen undergoing shock testing. The subject manipulator includes metal bellows for transmittal of angular motions without the use of rotating shaft seals or O-rings. Inside the manipulator, a first stepper motor controls angular movement. In the preferred embodiment, the bellows permit the first stepper motor to move an ultrasonic transducer {plus_minus} 45 degrees in a first plane and a second bellows permit a second stepper motor to move the transducer {plus_minus} 10 degrees in a second plane orthogonal to the first. In addition, an XY motor-driven table provides XY motion.

Schrum, P.B.; Cohen, G.H.

1992-12-31T23:59:59.000Z

98

Underwater manipulator  

DOE Patents (OSTI)

Self-contained, waterproof, water-submersible, remote-controlled apparatus is described for manipulating a device, such as an ultrasonic transducer for measuring crack propagation on an underwater specimen undergoing shock testing. The subject manipulator includes metal bellows for transmittal of angular motions without the use of rotating shaft seals or O-rings. Inside the manipulator, a first stepper motor controls angular movement. In the preferred embodiment, the bellows permit the first stepper motor to move an ultrasonic transducer [plus minus]45 degrees in a first plane and a second bellows permit a second stepper motor to move the transducer [plus minus]10 degrees in a second plane orthogonal to the first. In addition, an XY motor-driven table provides XY motion.

Schrum, P.B.; Cohen, G.H.

1993-04-20T23:59:59.000Z

99

AMOUR V: A Hovering Energy Efficient Underwater Robot Capable of Dynamic Payloads  

Science Conference Proceedings (OSTI)

In this paper we describe the design and control algorithms of AMOUR, a low-cost autonomous underwater vehicle (AUV) capable of missions of marine survey and monitoring. AMOUR is a highly maneuverable robot capable of hovering and carrying ...

Iuliu Vasilescu; Carrick Detweiler; Marek Doniec; Daniel Gurdan; Stefan Sosnowski; Jan Stumpf; Daniela Rus

2010-04-01T23:59:59.000Z

100

Complete SE[superscript 3] underwater robot control with arbitrary thruster configurations  

E-Print Network (OSTI)

e present a control algorithm for autonomous underwater robots with modular thruster configuration. The algorithm can handle arbitrary thruster configurations. It maintains the robot's desired attitude while solving for ...

Doniec, Marek Wojciech

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Biomimetic oscillating foil propulsion to enhance underwater vehicle agility and maneuverability  

E-Print Network (OSTI)

Inspired by the swimming abilities of marine animals, this thesis presents "Finnegan the RoboTurtle", an autonomous underwater vehicle (AUV) powered entirely by four flapping foils. Biomimetic actuation is shown to produce ...

Licht, Stephen Carl

2008-01-01T23:59:59.000Z

102

Underwater 3D Mapping: Experiences and Lessons learned  

Science Conference Proceedings (OSTI)

This paper provides details on the development of a tool to aid in 3D coral reef mapping designed to be operated by a single diver and later integrated into an autonomous robot. We discuss issues that influence the deployment and development of underwater ...

Andrew Hogue; Andrew German; James Zacher; Michael Jenkin

2006-06-01T23:59:59.000Z

103

An Autonomous Ocean Turbulence Measurement Platform  

Science Conference Proceedings (OSTI)

The use of a small autonomous underwater vehicle (AUV) as a platform for making in situ flow measurements in the ocean environment is described. Two high-wavenumber shear probes and a dynamic Pitot tube, housed in a pressure vessel mounted on the ...

Manhar R. Dhanak; Ken Holappa

1999-11-01T23:59:59.000Z

104

Multicolor Underwater Imaging Techniques.  

E-Print Network (OSTI)

??Studies were conducted on multispectral polarimetric subtraction imaging techniques for underwater imaging that use a broadband light source. The main objective of this study was… (more)

Waggoner, Douglas Scott

2007-01-01T23:59:59.000Z

105

Underwater Nonlinear Acoustic Speaker.  

E-Print Network (OSTI)

??In this work an acoustic parametric array for underwater use was designed, built and tested. An acoustic parametric array creates a focused beam of sound… (more)

Andersson, Sara

2011-01-01T23:59:59.000Z

106

Remote Underwater Characterization System - Innovative Technology Summary Report  

Science Conference Proceedings (OSTI)

Characterization and inspection of water-cooled and moderated nuclear reactors and fuel storage pools requires equipment capable of operating underwater. Similarly, the deactivation and decommissioning of older nuclear facilities often requires the facility owner to accurately characterize underwater structures and equipment which may have been sitting idle for years. The underwater characterization equipment is often required to operate at depths exceeding 20 ft (6.1 m) and in relatively confined or congested spaces. The typical baseline approach has been the use of radiation detectors and underwater cameras mounted on long poles, or stationary cameras with pan and tilt features mounted on the sides of the underwater facility. There is a perceived need for an inexpensive, more mobile method of performing close-up inspection and radiation measurements in confined spaces underwater. The Remote Underwater Characterization System (RUCS) is a small, remotely operated submersible vehicle intended to serve multiple purposes in underwater nuclear operations. It is based on the commercially-available “Scallop” vehicle1, but has been modified by Department of Energy’s Robotics Technology Development Program to add auto-depth control, and vehicle orientation and depth monitoring at the operator control panel. The RUCS is designed to provide visual and gamma radiation characterization, even in confined or limited access areas. It was demonstrated in August 1998 at Idaho National Engineering and environmental Laboratory (INEEL) as part of the INEEL Large Scale Demonstration and Deployment Project. During the demonstration it was compared in a “head-tohead” fashion with the baseline characterization technology. This paper summarizes the results of the demonstration and lessons learned; comparing and contrasting both technologies in the areas of cost, visual characterization, radiological characterization, and overall operations.

Willis, Walter David

1999-04-01T23:59:59.000Z

107

Cooperative Communication over Underwater Acoustic Channels.  

E-Print Network (OSTI)

??As diverse and data-heavy underwater applications emerge, demanding requirements are further imposed on underwater wireless communication systems. Future underwater wireless communication networks might consist of… (more)

Aldharrab, Suhail Ibrahim

2013-01-01T23:59:59.000Z

108

Underwater Gliders: Recent Developments and Future Applications  

E-Print Network (OSTI)

Underwater Gliders: Recent Developments and Future Applications (Invited Paper) R. Bachmayer, N underwater vehicles, and in particular au- tonomous underwater gliders, represent a rapidly maturing of an underwater glider system for propulsion, control, communication and sensing. A typical glider operation

Leonard, Naomi

109

Cooperative Schemes for Underwater Acoustic Communications (AQU 3)  

E-Print Network (OSTI)

Cooperative Schemes for Underwater Acoustic CommunicationsIntroduction: Underwater Cooperative CommunicationsMotivation Traditional underwater communications Used for

Madhavan Vajapeyam; Satish Vedantam; Urbashi Mitra

2006-01-01T23:59:59.000Z

110

TIMEOPTIMAL CONTROL FOR UNDERWATER VEHICLES  

E-Print Network (OSTI)

TIME­OPTIMAL CONTROL FOR UNDERWATER VEHICLES M. Chyba #,1 N.E. Leonard #,1 E.D. Sontag ##,2 problems for a special class of controlled mechanical systems, underwater vehicles. Lie algebras associated­optimal trajectories. We apply the general theory to a model of an underwater vehicle and illustrate our results

Sontag, Eduardo

111

Oxygen in Underwater Cave  

NLE Websites -- All DOE Office Websites (Extended Search)

Oxygen in Underwater Cave Oxygen in Underwater Cave Name: Natalie Status: student Grade: 9-12 Location: HI Country: USA Date: Spring 2011 Question: Is it possible for there to be free oxygen in an underwater cave? If it is, then how does it work? Replies: Yes it is possible as I have personally experienced. If the cave roof rises to a level above the water, air dissolved in the water will slowly out gas until the water is at the same level at all places. A pocket of breathable air will form. In many caves the roof dips below water level in one place but it above it on both sides. Think of a U shaped tube where the bottom of the U is blocked by water. This is called a siphon and I have passed through many of these to find breathable air on the other side. R. W. "Bob" Avakian Oklahoma State Univ. Inst. of Technology

112

Sparse Multichannel Estimation Algorithm for Cooperative Underwater Acoustic Communication Networks  

E-Print Network (OSTI)

Introduction: Cooperative Underwater Acoustic Communicationsgain for wireless and underwater network in interference-

Richard, Nick; Mitra, Urbasi

2007-01-01T23:59:59.000Z

113

Underwater Sensor Networks: Applications, Advances, and Challenges  

E-Print Network (OSTI)

Underwater Sensor Networks: Applications, Advances, and Challenges By John Heidemann1 , Milica- mentation of underwater wireless sensor networks. We summarize key applications and the main phenomena hardware, testbeds, and simulation tools available to the research community. Keywords: underwater

Heidemann, John

114

Underwater noise caused by snapping shrimp  

E-Print Network (OSTI)

E. 0. ~ulbert,,~~An Underwater Sound of Natural Qrigin,!! J.Sect ion, Feb. 3, 1943. UNDERWATER SOUN~SOF OLOG l CALOF CERTAl N Bl OLOGl CAL UNDERWATER SOUND ON 'THE EAST COAST

University of California, Division of War Research at the U.S. Navy Electronics Laboratory,

1946-01-01T23:59:59.000Z

115

Networking support for underwater wireless networks.  

E-Print Network (OSTI)

?? Underwater wireless networks provide many opportunities for exploration, environmental monitoring, and military applications. Future growth of underwater networks seems promising as much of the… (more)

Kredo, Kurtis B., II

2010-01-01T23:59:59.000Z

116

Clear underwater vision  

E-Print Network (OSTI)

Underwater imaging is important for scientific research and technology, as well as for popular activities. We present a computer vision approach which easily removes degradation effects in underwater vision. We analyze the physical effects of visibility degradation. We show that the main degradation effects can be associated with partial polarization of light. We therefore present an algorithm which inverts the image formation process, to recover a good visibility image of the object. The algorithm is based on a couple of images taken through a polarizer at different orientations. As a by product, a distance map of the scene is derived as well. We successfully used our approach when experimenting in the sea using a system we built. We obtained great improvement of scene contrast and color correction, and nearly doubled

Yoav Y. Schechner; Nir Karpel

2004-01-01T23:59:59.000Z

117

Inspection Report REPORT ON INSPECTION REGARDINGSMALL BUSINESS...  

NLE Websites -- All DOE Office Websites (Extended Search)

REPORT ON INSPECTION REGARDINGSMALL BUSINESS CONTRACTING STATISTICS REPORTING ANDPRESENTATION, INS-O-98-02 Inspection Report REPORT ON INSPECTION REGARDINGSMALL BUSINESS...

118

Design and implementation of an underwater sound recording device  

SciTech Connect

To monitor the underwater sound and pressure waves generated by activities such as underwater blasting and pile driving, an autonomous system used to record underwater acoustic signals was designed. The device designed allows two hydrophones or other dynamic pressure sensors to be connected, filters out high frequency noise, has a gain that can be independently set for each sensor, and allows two hours of data to be collected. Two versions of the USR were created; one is submersible to a maximum depth of 300 m, and the other, although watertight, is not intended to be fully submersed. Tests were performed in the laboratory using a data acquisition system to send single-frequency sinusoidal voltages directly to the each component. These tests verified that the device performs as well as larger commercially available data acquisition systems, which are not suited for field use. A prototype of the device was used in a case study to investigate the effect of underwater rock blasting on juvenile Chinook salmon and rainbow trout. The case study demonstrated that the device was able to tolerate being operated in harsh environments, making it a valuable tool for collecting field measurements.

Martinez, Jayson J.; Myers, Joshua R.; Carlson, Thomas J.; Deng, Zhiqun; Rohrer, John S.; Caviggia, Kurt A.; Woodley, Christa M.; Weiland, Mark A.

2011-09-01T23:59:59.000Z

119

MAC and Routing Protocols for Mobile Underwater Acoustic Sensor Swarms  

E-Print Network (OSTI)

Pressure Routing for Underwater Sensor Networks . . . . . .of Aloha Protocols for Underwater Acoustic Sensor Networks.Critical Applications in Underwater Sensor Networks. In

Noh, Young Tae

2012-01-01T23:59:59.000Z

120

Strategies in tracking and localization of distributed underwater systems  

E-Print Network (OSTI)

decoding approach for underwater acoustic communications",Mobility Prediction for Underwater Sensor Networks", W U W NH . V . , "Localization in Underwater Sensor Networks Survey

Mirza, Diba

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Iterative equalization and decoding applied to underwater acoustic communication  

E-Print Network (OSTI)

1.1 Shallow Underwater Acoustic Channels . . . . . . . .and Decoding Approach for Underwater Acoustic Commu-Equalization and Decoding of Underwater Acoustic Using Array

Sifferlen, James F.

2008-01-01T23:59:59.000Z

122

Underwater Lighting by Submerged Lasers and Incandescent Sources  

E-Print Network (OSTI)

Techniques for long- range underwater photography usingon Resolving Power in Underwater Photography," J. Opt. Soc.A. R. , Tyler, J. E. , "Underwater Photometer," J. Opt. Soc.

Duntley, Seibert Q

1971-01-01T23:59:59.000Z

123

DESIGNING AND IMPLEMENTING COLLABORATIVE BEHAVIORS FOR AUTONOMOUS UNDERWATER VEHICLES  

E-Print Network (OSTI)

, University of Idaho John Canning, University of Idaho Geoff Beidler, University of Idaho Michael O'Rourke, University of Idaho Dean Edwards, University of Idaho Center for Intelligent Systems Research BEL Room W3-1 University of Idaho Moscow, ID 83844-1024 208-885-4290 Abstract. The paper outlines the goals

Idaho, University of

124

Sound propagation around underwater seamounts  

E-Print Network (OSTI)

In the ocean, low frequency acoustic waves propagate with low attenuation and cylindrical spreading loss over long-ranges, making them an effective tool for underwater source localization, tomography, and communications. ...

Sikora, Joseph J., III

2009-01-01T23:59:59.000Z

125

Underwater Gas Expansion and Deflagration  

E-Print Network (OSTI)

The underwater combustion of a propane-air mixture in an acrylic cylinder is captured on video from multiple angles. This experiment is designed to provide visual data and pressure time-histories for future CFD validation studies.

Jones, Van; Gilbert, John; McCue-Weil, Leigh

2013-01-01T23:59:59.000Z

126

Seismic Imaging of UXO-Contaminated Underwater Sites (Interim Report)  

E-Print Network (OSTI)

Imaging of UXO-Contaminated Underwater Sites” Roland GrittoImaging of UXO-Contaminated Underwater Sites” over the first

Gritto, Roland; Korneev, Valeri; Nihei, Kurt; Johnson, Lane

2004-01-01T23:59:59.000Z

127

Coordination of an underwater glider fleet for adaptive sampling  

E-Print Network (OSTI)

Prediction (ASAP) projects aim to develop a sustainable, portable, adaptive ocean observing and prediction system for use in coastal environments. These projects employ, among other observation platforms, autonomous underwater vehicles that carry sensors to measure physical and biological signals in the ocean. The measurements from all sensing platforms are assimilated in real-time into advanced ocean models. The objective is to coordinate the mobile assets in order to collect data of highest possible utility. Critical to this effort are reliable, efficient and adaptive control strategies to enable the mobile sensor platforms to collect data autonomously. In this paper, we summarize feedback control strategies that enable us to gather useful information over a wide spectrum of spatial and temporal scales. First, we design formation control strategies useful for sampling small spatial scale processes (less than 5 km). In this framework, the feedback control laws maintain a desired formation of vehicles and allow the group to locate interesting features in the ocean. Some of these control strategies were implemented on a group of underwater gliders in Monterey Bay in August 2003, as part of the AOSN-II project. Second, we direct mobile sensor networks to provide synoptic coverage to investigate

Pradeep Bhatta; Edward Fiorelli; Francois Lekien; Naomi E. Leonard; Derek A. Paley; Fumin Zhang; Ralf Bachmayer; Russ E. Davis; David M. Fratantoni; Rodolphe Sepulchre

2005-01-01T23:59:59.000Z

128

Proceedings of the 11th European Conference on Underwater Acoustics ACHIEVABLE RATES OF UNDERWATER ACOUSTIC OFDM  

E-Print Network (OSTI)

Proceedings of the 11th European Conference on Underwater Acoustics ACHIEVABLE RATES OF UNDERWATER-Telecom, Telecom Bretagne, UMR CNRS 6285 Lab-STICC, Ueb, Brest, France J.-M. Passerieux Thales Underwater Systems maintaining acceptable data rates, remains one of the major difficulty faced by underwater acoustic

Paris-Sud XI, Université de

129

Full-duplex underwater networking using CDMA .  

E-Print Network (OSTI)

??Establishing a full-duplex underwater network, researching and applying a CDMA protocol to this network, providing a recommendation for a full-duplex underwater network and providing recommendations… (more)

Bektas, Kurtulus

2004-01-01T23:59:59.000Z

130

Reliability of underwater hearing thresholds in pinnipeds  

E-Print Network (OSTI)

Reliability of underwater hearing thresholds in pinnipeds Brandon L. Southall Long Marine@ucsc.edu Abstract: Repeated measures of low-frequency underwater hearing sensi- tivity in individuals of three and certain testing parameters (e.g., equipment and research personnel), measured underwater hearing

Reichmuth, Colleen

131

Underwater Vehicles for Deep Ocean Exploration  

E-Print Network (OSTI)

1 Underwater Vehicles for Deep Ocean Exploration Louis L. Whitcomb Ph.D. Associate Professor Kaohsiung, Taiwan, R.O.C. March 8, 2003 Outline · Introduction to Underwater Robotics · Johns Hopkins University Research Vehicle: JHU ROV · Research in Underwater Vehicle Navigation: ­ DVLNAV Navigation Program

Whitcomb, Louis L.

132

Three-dimensional ocean chlorophyll distributionsfrom underwater  

E-Print Network (OSTI)

Three-dimensional ocean chlorophyll distributionsfrom underwater serial-sectioned fluorescence images Andrew W. Palowitch and Jules S. Jaffe An underwater optical serial-sectioning technique that the underwater optical serial- sectioning technique is practical for in situ determination and analysis

Jaffe, Jules

133

UNDERWATER PAINT MARKING OF PORPOISES1  

E-Print Network (OSTI)

UNDERWATER PAINT MARKING OF PORPOISES1 Identification of individual animals has always been underwater. Applica- tion of these paints was easiest by pressurized spray. We experimented with spray. Paint bounced off most hard-surface materials before it could set underwater, unlike human or porpoise

134

Advances and Trends of Bionic Underwater Propulsors  

Science Conference Proceedings (OSTI)

In recent twenty years, tens of the bionic underwater prototype propulsors which imitate aquatic animals have been invented. The bionic principles hand classification of bionic propulsors were presented firstly. The main advance of the bionic propulsors ... Keywords: Bionic underwater propulsor, fish robot, undulation fin, neural control, underwater vehicle

Daibing Zhang; K. H. Low; Haibin Xie; Lincheng Shen

2009-05-01T23:59:59.000Z

135

Bridge Column Inspection 1  

Science Conference Proceedings (OSTI)

... Concept of an Underwater Bridge Column Inspector RoboCrane. The platform is ballast controlled with a rotary joint and attached sonar sensor. ...

2011-08-25T23:59:59.000Z

136

Underwater Chemical Analyzer  

Science Conference Proceedings (OSTI)

Minimizing extended outage down time is critical to the success of a utility maintenance outage. During walk downs and/or outage inspections unforeseen issues are found that require immediate repair attention. ASME rules are in most cases the law by which most repairs of existing components must be followed in an attempt to provide for the safe and reliable operation of pressure components. As such there is a need to know the specific alloying elements that makeup the various types of materials that may ...

2005-12-12T23:59:59.000Z

137

UNDERWATER COATINGS FOR CONTAMINATION CONTROL  

SciTech Connect

The Idaho National Laboratory (INL) deactivated several aging nuclear fuel storage basins. Planners for this effort were greatly concerned that radioactive contamination present on the basin walls could become airborne as the sides of the basins became exposed during deactivation and allowed to dry after water removal. One way to control this airborne contamination was to fix the contamination in place while the pool walls were still submerged. There are many underwater coatings available on the market for marine, naval and other applications. A series of tests were run to determine whether the candidate underwater fixatives were easily applied and adhered well to the substrates (pool wall materials) found in INL fuel pools. Lab-scale experiments were conducted by applying fourteen different commercial underwater coatings to four substrate materials representative of the storage basin construction materials, and evaluating their performance. The coupons included bare concrete, epoxy painted concrete, epoxy painted carbon steel, and stainless steel. The evaluation criteria included ease of application, adherence to the four surfaces of interest, no change on water clarity or chemistry, non-hazardous in final applied form and be proven in underwater applications. A proprietary two-part, underwater epoxy owned by S. G. Pinney and Associates was selected from the underwater coatings tested for application to all four pools. Divers scrubbed loose contamination off the basin walls and floors using a ship hull scrubber and vacuumed up the sludge. The divers then applied the coating using a special powered roller with two separate heated hoses that allowed the epoxy to mix at the roller surface was used to eliminate pot time concerns. The walls were successfully coated and water was removed from the pools with no detectable airborne contamination releases.

Julia L. Tripp; Kip Archibald; Ann Marie Phillips; Joseph Campbell

2004-02-01T23:59:59.000Z

138

Recognition of two-dimensional representation of urban environment for autonomous flying agents  

Science Conference Proceedings (OSTI)

In this paper the problem of a vision system implementation for autonomous flying agents is considered in the context of industrial inspection tasks performed by unmanned aerial vehicles. A syntactic algorithm of a two-dimensional object vectorization ... Keywords: Autonomous flying agents, Object recognition, Syntactic languages, Vectorization

Andrzej Bielecki; Tomasz Buratowski; Piotr Migielski

2013-07-01T23:59:59.000Z

139

CX-008459: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exclusion Determination Autonomous Underwater Inspection Using Three Dimensional Laser CX(s) Applied: B3.6 Date: 06152012 Location(s): Florida Offices(s): National Energy...

140

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

201221 months Gary Covatch Littleton, CO Autonomous Underwater Inspection Using a 3D Laser Technology requirements definition, autonomy development, and integration and support...

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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141

CX-008456: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exclusion Determination Autonomous Underwater Inspection Using Three Dimensional Laser CX(s) Applied: B3.6 Date: 06152012 Location(s): Florida Offices(s): National Energy...

142

CX-006119: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

prepost hurricane inspection of an offshore facility using an autonomous unmanned underwater vehicle (AUV). DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-006119.pdf More Documents &...

143

Page not found | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Download CX-008454: Categorical Exclusion Determination Autonomous Underwater Inspection Using a Three Dimensional Laser CX(s) Applied: B3.6 Date: 06152012...

144

Page not found | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Download CX-008459: Categorical Exclusion Determination Autonomous Underwater Inspection Using Three Dimensional Laser CX(s) Applied: B3.6 Date: 06152012...

145

SPARSE UNDERWATER ACOUSTIC IMAGING: A CASE STUDY Nikolaos Stefanakis  

E-Print Network (OSTI)

SPARSE UNDERWATER ACOUSTIC IMAGING: A CASE STUDY Nikolaos Stefanakis , Jacques Marchal , Valentin de Beaulieu 35042 Rennes Cedex, France ABSTRACT Underwater acoustic imaging is traditionally 3D underwater imaging using a newly built flexible-configuration sonar device. The computational

Paris-Sud XI, Université de

146

Using optical communication for remote underwater robot operation  

E-Print Network (OSTI)

Underwater vehicles are typically operated using a tether or a slow acoustic link. We present an underwater optical communication system that enables a high-throughput and low-latency link to an underwater robot. The optical ...

Doniec, Marek Wojciech

147

Underwater Visual Acuity of Florida Manatees (Trichechus manatus latirostris)  

E-Print Network (OSTI)

equivalent aerial and underwater diurnal acuity. Science,S. , & Blue, J. (1999). The underwater audiogram of the WestR. F. (1971). Aerial and underwater visual acuity in the

Bauer, Gordon B.; Colbert, Debborah E.; Gaspard III, Joseph C.; Littlefield, Brandie; Fellner, Wendi

2003-01-01T23:59:59.000Z

148

Blue whale response to underwater noise from commercial ships  

E-Print Network (OSTI)

D. , 1976. Mechanics of Underwater Noise. Pergamon PressD. , 1993. On ocean underwater ambient noise. AcousticsRichmond, M.E. , 2005. Underwater, low- frequency noise in a

McKenna, Megan Frances

2011-01-01T23:59:59.000Z

149

Applications of Underwater Technology on Underwater Archaeology:The Search for Underwater Cultural Heritage in Peng-Hu Sea Area.  

E-Print Network (OSTI)

??The purpose of this paper is to investigate the survey strategy for marine archaeology using modern underwater survey and identification instruments and techniques on Peng-Hu… (more)

Chen, Wei-Cheng

2010-01-01T23:59:59.000Z

150

Underwater acoustic navigation with the WHOI micro-modem  

E-Print Network (OSTI)

Abstract — The WHOI Micro-Modem is a compact, low-power acoustic transceiver that can provide both acoustic telemetry and navigation. Its size and versatility make it ideal for integration in autonomous underwater vehicles (AUVs). The modem supports the use of both broadband and narrowband transponders for long baseline navigation systems, has a modem-to-modem ranging capability, and can be configured to provide synchronous oneway ranging, when integrated with a precision clock. This paper gives an overview of the different navigation systems supported by the Micromodem and presents the results from field tests conducted on the SeaBED AUV in deployments in Greece, the Bluefin AUV, and whale localizations in the Stellwagen Bank Marine Sanctuary. I.

Ipa Singh; Matthew Grund; Brian Bingham; Ryan Eustice; Hanumant Singh; Lee Freitag

2006-01-01T23:59:59.000Z

151

Intelligent deployment strategies for passive underwater sensor networks.  

E-Print Network (OSTI)

??Passive underwater sensor networks are often used to monitor a general area of the ocean, a port or military installation, or to detect underwater vehicles… (more)

Golen, Erik; Yuan, B; Shenoy, N

2009-01-01T23:59:59.000Z

152

Design of small, low-cost, underwater fin manipulator.  

E-Print Network (OSTI)

??This thesis details the development of a small, low cost, underwater manipulator for use on the XAUV. At this time, there are no cheap underwater… (more)

Roberts, Megan Johnson

2008-01-01T23:59:59.000Z

153

Underwater Sensor Network (UWSN) LabUnderwater Sensor Network (UWSN) Lab AquaAqua--fModemfModem: A Stand: A Stand--alone Underwateralone Underwater  

E-Print Network (OSTI)

Underwater Sensor Network (UWSN) LabUnderwater Sensor Network (UWSN) Lab AquaAqua--fModemfModem: A Stand: A Stand--alone Underwateralone Underwater Acoustic Modem Based on OFDM TechnologyAcoustic ModemUniversity of Connecticut OFDM is one appealing solution for highOFDM is one appealing solution for high--rate underwater

Zhou, Shengli

154

Time synchronization for underwater acoustic sensor networks.  

E-Print Network (OSTI)

??The unique properties of underwater acoustic communications, such as large and time-varying propagation, low and range dependent bandwidth, and adverse operating environment make the synchronization… (more)

Khandoker, Tarik-Ul Islam

2012-01-01T23:59:59.000Z

155

Underwater survival story presents physics puzzle  

NLE Websites -- All DOE Office Websites (Extended Search)

0213sea 07022013 High Resolution Image LLNL physicist Maxim Umansky recently performed a physics analysis of an underwater survival story off the Nigerian coast. Umansky, an...

156

Crossarm Inspection and Assessment  

Science Conference Proceedings (OSTI)

Linemen frequently use wood pole inspection methods to inspect crossarms, and little work has been done to specifically address the inspection of wood, steel, or fiberglass crossarms. This report outlines the development of a test bed and associated protocols required to assess currently available and prospective inspection technologies and techniques for evaluation of in-service crossarms.

2009-12-23T23:59:59.000Z

157

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

FY 201221 months Gary Covatch Boulder, CO Autonomous Underwater Inspection Using a 3D Laser Design, research, assembly and testing of a 3D at Depth underwater LADAR sensor. Gary...

158

Underwater Coatings for Contamination Control  

Science Conference Proceedings (OSTI)

The Idaho National Engineering and Environmental Laboratory (INEEL) is deactivating several fuel storage basins. Airborne contamination is a concern when the sides of the basins are exposed and allowed to dry during water removal. One way of controlling this airborne contamination is to fix the contamination in place while the pool walls are still submerged. There are many underwater coatings available on the market that are used in marine, naval and other applications. A series of tests were run to determine whether the candidate underwater fixatives are easily applied and adhere well to the substrates (pool wall materials) found in INEEL fuel pools. The four pools considered included 1) Test Area North (TAN-607) with epoxy painted concrete walls; 2) Idaho Nuclear Technology and Engineering Center (INTEC) (CPP-603) with bare concrete walls; 3) Materials Test Reactor (MTR) Canal with stainless steel lined concrete walls; and 4) Power Burst Facility (PBF-620) with stainless steel lined concrete walls on the bottom and epoxy painted carbon steel lined walls on the upper portions. Therefore, the four materials chosen for testing included bare concrete, epoxy painted concrete, epoxy painted carbon steel, and stainless steel. The typical water temperature of the pools varies from 55oF to 80oF dependent on the pool and the season. These tests were done at room temperature. The following criteria were used during this evaluation. The underwater coating must: · Be easy to apply · Adhere well to the four surfaces of interest · Not change or have a negative impact on water chemistry or clarity · Not be hazardous in final applied form · Be proven in other underwater applications. In addition, it is desirable for the coating to have a high pigment or high cross-link density to prevent radiation from penetrating. This paper will detail the testing completed and the test results. A proprietary two-part, underwater epoxy owned by S. G. Pinney and Associates was selected to be applied by divers after scrubbing loose contamination off the basin walls and floors using a ship hull scrubber and vacuuming up the sludge. A special powered roller with two separate heated hoses that allowed the epoxy to mix at the roller surface was used to eliminate pot time concerns. The walls were successfully coated and water was removed from the pool with no airborne contamination problems.

Julia L. Tripp; Kip Archibald; Ann-Marie Phillips; Joseph Campbell

2004-02-01T23:59:59.000Z

159

QUO VADIS: QoS-aware Underwater Optimization Framework for Inter-vehicle Communication using Acoustic Directional Transducers  

E-Print Network (OSTI)

Abstract—Underwater acoustic communications consume a significant amount of energy due to the high transmission power (10?50 W) and long data packet transmission times (0.1?1 s). Mobile Autonomous Underwater Vehicles (AUVs) can conserve energy by waiting for the ‘best ’ network topology configuration, e.g., a favorable alignment, before starting to communicate. Due to the frequency-selective underwater acoustic ambient noise and high medium power absorption – which increases exponentially with distance – a shorter distance between AUVs translates into a lower transmission loss and a higher available bandwidth. By leveraging the predictability of AUV trajectories, a novel solution is proposed that optimizes communications by delaying packet transmissions in order to wait for a favorable network topology (thus trading end-to-end delay for energy and/or throughput). In addition, the solution proposed – which is implemented and compared with other solutions using an emulator that integrates underwater acoustic WHOI Micro-Modems – exploits the frequency-dependent radiation pattern of underwater acoustic transducers to reduce communication energy consumption by adjusting the transducer directivity on-the-fly. I.

Baozhi Chen; Dario Pompili

2011-01-01T23:59:59.000Z

160

Underwater Localization in Sparse 3D Acoustic Sensor Networks  

E-Print Network (OSTI)

Underwater Localization in Sparse 3D Acoustic Sensor Networks Wei Cheng1,2, Amin Y. Teymorian the localization problem in sparse 3D underwater sensor networks. Considering the fact that depth information is typically available for underwater sensors, we transform the 3D underwater positioning problem into its two

Cheng, Xiuzhen "Susan"

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Platform effects on optical variability and prediction of underwater visibility  

E-Print Network (OSTI)

Platform effects on optical variability and prediction of underwater visibility Grace Chang,1, specifically the breakdown of stratification from mixing by the hull of R/P FLIP. Modeled underwater radiance Successful, rapid identification of underwater tar- gets and accurate underwater imaging are critical

You, Yu

162

Underwater Vehicles hal-00733797,version1-19Sep2012  

E-Print Network (OSTI)

Underwater Vehicles hal-00733797,version1-19Sep2012 Author manuscript, published in "Underwater Vehicles (2009) 525-538" #12;hal-00733797,version1-19Sep2012 #12;Underwater Vehicles Edited by Alexander V from: publication@intechweb.org First published January 2009 Printed in Croatia Underwater Vehicles

Paris-Sud XI, Université de

163

Automatic Underwater Image Pre-Processing Stephane Bazeille(1)  

E-Print Network (OSTI)

Automatic Underwater Image Pre-Processing St´ephane Bazeille(1) , Isabelle Quidu(1) , Luc Jaulin(1 Cedex 9 FRANCE (2) Thales Underwater Systems S.A S. Route de Sainte Anne du Portzic Site Amiral Nomy CS for underwater image restoration. Because of specific transmission properties of light in the water, underwater

Paris-Sud XI, Université de

164

Underwater Augmented Reality Game using the DOLPHYN Abdelkader Bellarbi2  

E-Print Network (OSTI)

Underwater Augmented Reality Game using the DOLPHYN Abdelkader Bellarbi2 , Christophe Domingues1 technologies. With the extension of Internet to underwater applications, the innovative character, such as the mouse, to underwater uses [1]. The Dolphyn is an underwater-computerized display system with various

Paris-Sud XI, Université de

165

Robotics for waste storage inspection: A user`s perspective  

SciTech Connect

Self-navigating robotic vehicles are now commercially available, and the technology supporting other important system components has also matured. Higher reliability and the obtainability of system support now make it practical to consider robotics as a way of addressing the growing operational requirement for the periodic inspection and maintenance of radioactive, hazardous, and mixed waste inventories. This paper describes preparations for the first field deployment of an autonomous container inspection robot at a Department of Energy (DOE) site. The Stored Waste Autonomous Mobile Inspector (SWAMI) is presently being completed by engineers at the Savannah River Technology Center (SRTC). It is a modified version of a commercially available robot. It has been outfitted with sensor suites and cognition that allow it to perform inspections of drum inventories and their storage facilities.

Hazen, F.B.

1994-06-23T23:59:59.000Z

166

Design of a low-cost underwater acoustic modem for short- range sensor networks  

E-Print Network (OSTI)

of Optical Waves Underwater . . . . . . . 3.2.2 ExistingChapter 4 Existing Underwater Acoustic Modems 4.1 CommercialControl Structure of Symbol Synchronization for Underwater

Benson, Bridget

2010-01-01T23:59:59.000Z

167

Fish Detection in Underwater Video of Benthic Habitats in Virgin Islands.  

E-Print Network (OSTI)

??The research of underwater creatures is a fascinating work to marine biologists and environmental experts. However, finding and segmenting underwater creatures in underwater images and… (more)

Wu, Nan

2012-01-01T23:59:59.000Z

168

RELIABILITY CONSIDERATIONS OF ELECTRONICS COMPONENTS FOR THE DEEP UNDERWATER MUON AND NEUTRINO DETECTION SYSTEM  

E-Print Network (OSTI)

Considerations for the Dtep Underwater Muon and NeutrinoPresented at the Deep Underwater Huon and Neutrino DetectionCOMPONENTS FOR THE DEEP UNDERWATER MUON AND NEUTRINO

Leskovar, B.

2010-01-01T23:59:59.000Z

169

Underwater Mirror Exposure to Free-Ranging Naïve Atlantic Spotted Dolphins (Stenella frontalis) in the Bahamas  

E-Print Network (OSTI)

Vocalizations and associated underwater behavior of free-Comparative Psychology Underwater Mirror Exposure to Free-frontalis) has been studied underwater in the Bahamas. We

Delfour, Fabienne; Herzing, Denise

2013-01-01T23:59:59.000Z

170

Spectrally efficient underwater acoustic communications : channel characterization and design aspects for OFDM  

E-Print Network (OSTI)

with L = 9 for an underwater channel impulse response with Ladaptive modulation in underwater acoustic communications,”Adaptive OFDM for underwater acoustic channels with limited

Radoševi?, Andreja

2012-01-01T23:59:59.000Z

171

PHOTOMULTIPLIER CHARACTERISTICS CONSIDERATIONS FOR THE DEEP UNDERWATER MUON AND NEUTRINO DETECTION SYSTEM  

E-Print Network (OSTI)

Presented at the Deep Underwater Huon and Neutrino DetectionCONSIDERATIONS FOR THE DEEP UNDERWATER HUON AND NEUTRINOPresented at the Deep Underwater Huon and Neutrino Detection

Leskovar, B.

2010-01-01T23:59:59.000Z

172

Special Issue "Underwater Sensor Nodes and Underwater Sensor Networks" A special issue of Sensors (ISSN 1424-8220)  

E-Print Network (OSTI)

Special Issue "Underwater Sensor Nodes and Underwater Sensor Networks" A special issue of Sensors (ISSN 1424-8220) Website: http://www.mdpi.com/journal/sensors/special_issues/underwater_sens Journal prediction, oil monitoring and so on. This special issue tries to collect the recent advances on underwater

Chen, Min

173

User Electrical Inspection Criteria  

NLE Websites -- All DOE Office Websites (Extended Search)

User Electronic and Electrical Equipment Inspection Criteria User Electronic and Electrical Equipment Inspection Criteria Any electrical or electronic equipment users bring to the APS will have to be inspected. In some cases, this inspection will be quite simple, e.g., if the equipment has already been inspected by a Nationally Recognized Testing Laboratory (NRTL) and is used for its designed purpose. Other equipment will require a more thorough inspection (this may include NRTL inspected equipment if it is assembled into an apparatus with other components). The inspection is based on an eight-part list of criteria. Paraphrased, those criteria are: The equipment must be suitable for its intended use (and if appropriate, installation). For example, a heater controller intended to control a 1000W heater cannot be used to control a 2000W heater. The

174

Measurement of autonomous operation  

Science Conference Proceedings (OSTI)

While robotic systems and the field of Artificial Intelligence (AI) have been funded through the Department Of Defense (DoD) and Industry for decades, it was not until recent years that the combination of these two technologies has made truly significant ... Keywords: C4ISR, automated decision aid (ADA), autonomous control, autonomous operations, unmanned aerial system

W. Hamel

2010-09-01T23:59:59.000Z

175

Prompt muon contribution to the flux underwater  

E-Print Network (OSTI)

We present high energy spectra and zenith-angle distributions of the atmospheric muons computed for the depths of the locations of the underwater neutrino telescopes. We compare the calculations with the data obtained in the Baikal and the AMANDA muon experiments. The prompt muon contribution to the muon flux underwater due to recent perturbative QCD-based models of the charm production is expected to be observable at depths of the large underwater neutrino telescopes. This appears to be probable even at rather shallow depths (1-2 km), provided that the energy threshold for muon detection is raised above $\\sim 100$ TeV.

T. S. Sinegovskaya; S. I. Sinegovsky

2000-07-21T23:59:59.000Z

176

Designing a wireless underwater optical communication system  

E-Print Network (OSTI)

Though acoustic modems have long been the default wireless communication method for underwater applications due to their long range, the need for high speed communication has prompted the exploration of non-acoustic methods ...

Brundage, Heather

2010-01-01T23:59:59.000Z

177

MECHANICS AND NONLINEAR CONTROL: MAKING UNDERWATER VEHICLES  

E-Print Network (OSTI)

MECHANICS AND NONLINEAR CONTROL: MAKING UNDERWATER VEHICLES RIDE AND GLIDE Naomi Ehrich Leonard \\Lambda \\Lambda Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544 naomi@princeton.edu Abstract: Methods from geometric mechanics and dynamical systems theory make

Leonard, Naomi

178

Vertical Water Velocities from Underwater Gliders  

Science Conference Proceedings (OSTI)

The underwater glider is set to become an important platform for oceanographers to gather data within oceans. Gliders are usually equipped with a conductivity–temperature–depth (CTD) sensor, but a wide range of other sensors have been fitted to ...

Lucas Merckelbach; David Smeed; Gwyn Griffiths

2010-03-01T23:59:59.000Z

179

Development of tether mooring type underwater robot  

Science Conference Proceedings (OSTI)

For the purpose of detecting CO2 leaks during ocean CO2 sequestration, there is a need for independent underwater robots that can make observations while maintaining their position over the seabed against the current for long periods ...

Ya-Wen Huang; Koji Ueda; Kazuhiro Itoh; Edwardo F. Fukushima; Shigeo Hirose

2009-10-01T23:59:59.000Z

180

Underwater Camera Calibration Using Wavelength Triangulation  

Science Conference Proceedings (OSTI)

In underwater imagery, the image formation process includes refractions that occur when light passes from water into the camera housing, typically through a flat glass port. We extend the existing work on physical refraction models by considering the ...

Timothy Yau, Minglun Gong, Yee-Hong Yang

2013-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Predicting the navigation performance of underwater vehicles  

Science Conference Proceedings (OSTI)

In this paper we present a general framework for predicting the positioning uncertainty of underwater vehicles. We apply this framework to common examples from marine robotics: standalone long baseline (LBL) positioning and integrated LBL reference and ...

Brian Bingham

2009-10-01T23:59:59.000Z

182

Piezoelectric materials used in underwater acoustic transducers  

Science Conference Proceedings (OSTI)

Piezoelectric materials have been used in underwater acoustic transducers for nearly a century. In this paper, we reviewed four different types of piezoelectric materials: piezoelectric ceramics, single crystals, composites, and polymers, which are widely used in underwater acoustic transducers nowadays. Piezoelectric ceramics are the most dominant material type and are used as a single-phase material or one of the end members in composites. Piezoelectric single crystals offer outstanding electromechanical response but are limited by their manufacturing cost. Piezoelectric polymers provide excellent acoustic impedance matching and transducer fabrication flexibility although their piezoelectric properties are not as good as ceramics and single crystals. Composites combined the merits of ceramics and polymers and are receiving increased attention. The typical structure and electromechanical properties of each type of materials are introduced and discussed with respect to underwater acoustic transducer applications. Their advantages and disadvantages are summarized. Some of the critical design considerations when developing underwater acoustic transducers with these materials are also touched upon.

Li, Huidong; Deng, Zhiqun; Carlson, Thomas J.

2012-07-07T23:59:59.000Z

183

Contributions to automated realtime underwater navigation  

E-Print Network (OSTI)

This dissertation presents three separate-but related-contributions to the art of underwater navigation. These methods may be used in postprocessing with a human in the loop, but the overarching goal is to enhance vehicle ...

Stanway, Michael Jordan

2012-01-01T23:59:59.000Z

184

Krill: An exploration in underwater sensor networks  

E-Print Network (OSTI)

While sensor networks have now become very popular on land, the underwater environment still poses some difficult problems. Communication is one of the difficult challenges under water. There are two options:

I Vasilescu; K Kotay; D Rus; L Overs; P Sikka; M Dunbabin; P Chen; P Corke

2005-01-01T23:59:59.000Z

185

Underwater vehicle localization using range measurements  

E-Print Network (OSTI)

This thesis investigates the problem of cooperative navigation of autonomous marine vehicles using range-only acoustic measurements. We consider the use of a single maneuvering autonomous surface vehicle (ASV) to aid the ...

Papadopoulos, Ge?rgios

2010-01-01T23:59:59.000Z

186

Design considerations for an intelligent mobile robot for mixed-waste inspection  

SciTech Connect

Large quantities of low-level radioactive waste are stored in steel drums at various Department of Energy (DOE) sites in the United States. Much of the stored waste qualifies as mixed waste and falls under Environmental Protection Agency (EPA) regulations that require periodic inspection. A semi-autonomous mobile robot is being developed during Phase 1 of a DOE contract to perform the inspection task and consequently reduce the radiation exposure of inspection personnel to ALARA (as low as reasonably achievable). The nature of the inspection process, the resulting robot design requirements, and the current status of the project are the subjects of this paper.

Sias, F.R.; Dawson, D.M.; Schalkoff, R.J. [Clemson Univ., SC (United States). Dept. of Electrical and Computer Engineering; Byrd, J.S.; Pettus, R.O. [South Carolina Univ., Columbia, SC (United States). Dept. of Electrical and Computer Engineering

1993-06-01T23:59:59.000Z

187

Sensor Data Processing for Tracking Underwater Threats Using Terascale Optical Core Devices  

SciTech Connect

A critical aspect of littoral surveillance (including port protection) involves the localization and tracking of underwater threats such as manned or unmanned autonomous underwater vehicles. In this article, we present a methodology for locating underwater threat sources from uncertain sensor network data, and illustrate the threat tracking aspects using active sonars in a matched filter framework. The novelty of the latter paradigm lies in its implementation on a tera-scale optical core processor, EnLight , recently introduced by Lenslet Laboratories. This processor is optimized for array operations, which it performs in a fixed point arithmetic architecture at tera-scale throughput. Using the EnLight 64 prototype processor, our results (i) illustrate the ability to reach a robust tracking accuracy, and (ii) demonstrate that a considerable speed-up (a factor of over 13,000) can be achieved when compared to an Intel XeonTM processor in the computation of sets of 80K-sample complex Fourier transforms that are associated with our matched filter techniques.

Barhen, Jacob [ORNL; Imam, Neena [ORNL

2009-01-01T23:59:59.000Z

188

Reduced Mandated Inspection by Remote Field Eddy Current Inspection of Unpiggable Pipelines  

Science Conference Proceedings (OSTI)

The Remote Field Eddy Current (RFEC) technique is ideal for inspecting unpiggable pipelines because all of its components can be made much smaller than the diameter of the pipe to be inspected. For this reason, RFEC was chosen as a technology for unpiggable pipeline inspections by DOE-NETL with the support of OTD and PRCI, to be integrated with platforms selected by DOENETL. As part of the project, the RFEC laboratory facilities were upgraded and data collection was made nearly autonomous. The resulting improved data collection speeds allowed GTI to test more variables to improve the performance of the combined RFEC and platform technologies. Tests were conducted on 6-, 8-, and 12-inch seamless and seam-welded pipes. Testing on the 6-inch pipes included using seven exciter coils, each of different geometry with an initial focus on preparing the technology for use on an autonomous robotic platform with limited battery capacity. Reductions in power consumption proved successful. Tests with metal components similar to the Explorer II modules were performed to check for interference with the electromagnetic fields. The results of these tests indicated RFEC would be able to produce quality inspections while on the robot. Mechanical constraints imposed by the platform, power requirements, control and communication protocols, and potential busses and connectors were addressed. Much work went into sensor module design including the mechanics and electronic diagrams and schematics. GTI participated in two Technology Demonstrations for inspection technologies held at Battelle Laboratories. GTI showed excellent detection and sizing abilities for natural corrosion. Following the demonstration, module building commenced but was stopped when funding reductions did not permit continued development for the selected robotic platform. Conference calls were held between GTI and its sponsors to resolve the issue of how to proceed with reduced funding. The project was rescoped for 10-16-inch pipes with the intent of looking at lower cost, easier to implement, tethered platform applications. OTD ended its sponsorship.

Albert Teitsma; Julie Maupin

2006-09-29T23:59:59.000Z

189

Inspection Report: IG-0774  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Inspection Report Inspection Report Material Control and Accountability at Los Alamos National Laboratory DOE/IG-0774 September 2007 U.S. Department of Energy Office of Inspector General Office of Inspections and Special Inquiries Department of Energy Washington, DC 20585 September 7,2007 MEMORANDUM FOR FROM: Insp~ct& General SUBJECT: INFORMATION: Inspection Report on "Material Control and Accountability at Los Alamos National Laboratory" BACKGROUND The Department of Energy's Los Alamos National Laboratory (LANL) has a national security mission that includes responsibility for the science, engineering and technology related to certain radioactive materials supporting the Nation's nuclear weapons program. These include materials

190

Optical fiber inspection system  

DOE Patents (OSTI)

A remote optical inspection system including an inspection head. The inspection head has a passageway through which pellets or other objects are passed. A window is provided along the passageway through which light is beamed against the objects being inspected. A plurality of lens assemblies are arranged about the window so that reflected light can be gathered and transferred to a plurality of coherent optical fiber light guides. The light guides transfer the light images to a television or other image transducer which converts the optical images into a representative electronic signal. The electronic signal can then be displayed on a signal viewer such as a television monitor for inspection by a person. A staging means can be used to support the objects for viewing through the window. Routing means can be used to direct inspected objects into appropriate exit passages for accepted or rejected objects. The inspected objects are advantageously fed in a singular manner to the staging means and routing means. The inspection system is advantageously used in an enclosure when toxic or hazardous materials are being inspected. 10 figs.

Moore, F.W.

1985-04-05T23:59:59.000Z

191

Optical fiber inspection system  

DOE Patents (OSTI)

A remote optical inspection system including an inspection head. The inspection head has a passageway through which pellets or other objects are passed. A window is provided along the passageway through which light is beamed against the objects being inspected. A plurality of lens assemblies are arranged about the window so that reflected light can be gathered and transferred to a plurality of coherent optical fiber light guides. The light guides transfer the light images to a television or other image transducer which converts the optical images into a representative electronic signal. The electronic signal can then be displayed on a signal viewer such as a television monitor for inspection by a person. A staging means can be used to support the objects for viewing through the window. Routing means can be used to direct inspected objects into appropriate exit passages for accepted or rejected objects. The inspected objects are advantageously fed in a singular manner to the staging means and routing means. The inspection system is advantageously used in an enclosure when toxic or hazardous materials are being inspected.

Moore, Francis W. (Richland, WA)

1987-01-01T23:59:59.000Z

192

Spatiotemporal processing and time-reversal for underwater acoustic communications  

E-Print Network (OSTI)

High-rate underwater acoustic communication can be achieved using transmitter/receiver arrays. Underwater acoustic channels can be characterized as rapidly time-varying systems that suffer severe Inter Symbol Interferences ...

Wang, Daniel Y

2005-01-01T23:59:59.000Z

193

Development of a low-cost underwater manipulator.  

E-Print Network (OSTI)

??This thesis describes the design, modeling, manufacture, and testing of a low cost, multiple degree-of-freedom underwater manipulator. Current underwater robotic arm technologies are often expensive… (more)

Cooney, Lauren Alise

2006-01-01T23:59:59.000Z

194

Dissolved organic matters impact on colour reconstruction in underwater images  

Science Conference Proceedings (OSTI)

The natural properties of water column usually affect underwater imagery by suppressing high-energy light. In application such as color correction of underwater images estimation of water column parameters is crucial. Diffuse attenuation coefficients ...

J. Åhlén; D. Sundgren; T. Lindell; E. Bengtsson

2005-06-01T23:59:59.000Z

195

Underwater ultra-wideband fingerprinting-based localization.  

E-Print Network (OSTI)

??In this work a new location fingerprinting-based localization algorithm is proposed for an underwater medium by utilizing ultra-wideband (UWB) signals. In many conventional underwater systems,… (more)

Shakeri, S.

2012-01-01T23:59:59.000Z

196

Development of a low-cost underwater manipulator  

E-Print Network (OSTI)

This thesis describes the design, modeling, manufacture, and testing of a low cost, multiple degree-of-freedom underwater manipulator. Current underwater robotic arm technologies are often expensive or limited in functionality. ...

Cooney, Lauren Alise

2006-01-01T23:59:59.000Z

197

Design of small, low-cost, underwater fin manipulator  

E-Print Network (OSTI)

This thesis details the development of a small, low cost, underwater manipulator for use on the XAUV. At this time, there are no cheap underwater servos commercially available. The design involves modifying a commercially ...

Roberts, Megan Johnson

2008-01-01T23:59:59.000Z

198

Underwater Human-Robot Interaction via Biological Motion Identification  

E-Print Network (OSTI)

Underwater Human-Robot Interaction via Biological Motion Identification Junaed Sattar and Gregory: {junaed, dudek}@cim.mcgill.ca Abstract-- We present an algorithm for underwater robots to visually detect pertaining to biological motion. This technique is applied to track scuba divers in underwater domains

Dudek, Gregory

199

An Underwater Robotic Network for Monitoring Nuclear Waste Storage Pools  

E-Print Network (OSTI)

An Underwater Robotic Network for Monitoring Nuclear Waste Storage Pools Sarfraz Nawaz1 , Muzammil must be stored for around 60 years in underwater storage pools before permanent disposal. These underwater storage environments must be carefully monitored and controlled to avoid an environmental

Jeavons, Peter

200

An Underwater Sensor Network with Dual Communications, Sensing, and  

E-Print Network (OSTI)

An Underwater Sensor Network with Dual Communications, Sensing, and Mobility Carrick Detweiller an underwater sensor network with dual communication and sup- port for sensing and mobility. The nodes developed. We describe the hardware details of the underwater sensor node and the communication

Farritor, Shane

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Coastal Underwater Field Observer with Remote IP Access  

E-Print Network (OSTI)

Coastal Underwater Field Observer with Remote IP Access Joe Wilinski, Aaron Ganick, Alexander with continuous use of batteries. Costal Underwater Field Observer 9/16/09 #12;Boston University Slideshow Title? Wide angle Zoom Costal Underwater Field Observer #12;Boston University Slideshow Title Goes Here

Goldberg, Bennett

202

Integrated Short Term Navigation of a Towed Underwater Body*  

E-Print Network (OSTI)

Integrated Short Term Navigation of a Towed Underwater Body* G. Damy' M. Joannides2 F. LeGland3 M. An underwater body, to be called here- after the fish, is towed by a surface ship at the end of a few hundred cannot provide any position estimates of an underwater body such as a towed fish, but only position

LeGland, François

203

Fountain Codes and their Application to Broadcasting in Underwater Networks  

E-Print Network (OSTI)

Fountain Codes and their Application to Broadcasting in Underwater Networks: Performance Modeling aim in this paper is to study the performance of broadcasting al- gorithms for underwater acoustic to broad- casting in underwater networks. Our analysis allows us to find per- formance metrics

Rossi, Michele

204

Underwater vehicles: The minimum time problem Department of Mathematics  

E-Print Network (OSTI)

Underwater vehicles: The minimum time problem M. Chyba Department of Mathematics 2565 McCarthy Mall for a class of underwater vehicles. We focus on the situation of initial and final configurations at rest In this paper we pursue the analysis of the minimum time problem for a special class of underwater vehicles, see

Sontag, Eduardo

205

A camcorder for 3D underwater reconstruction of archeological objects  

E-Print Network (OSTI)

A camcorder for 3D underwater reconstruction of archeological objects A. Meline1 , J. Triboulet1 Cedex 5, France 2 Université de Nîmes, Place Gabriele Péri, 30021 Nîmes, France Abstract- The underwater cartography has made great progress in the last decade. In this paper, we discuss of the 3D underwater

Paris-Sud XI, Université de

206

Exploring underwater target detection by imaging polarimetry and correlation techniques  

E-Print Network (OSTI)

1 Exploring underwater target detection by imaging polarimetry and correlation techniques M *Corresponding author: ayman.al-falou@isen.fr Underwater target detection is investigated by combining active. This experimentally study illustrates the potential of polarization imaging for underwater target detection and opens

Paris-Sud XI, Université de

207

BOUSSINESQ MODELING OF SURFACE WAVES DUE TO UNDERWATER LANDSLIDES  

E-Print Network (OSTI)

BOUSSINESQ MODELING OF SURFACE WAVES DUE TO UNDERWATER LANDSLIDES DENYS DUTYKH AND HENRIK KALISCH Abstract. Consideration is given to the influence of an underwater landslide on waves at the surface distinct generation mechanisms of a tsunami are underwater earth- quakes, and submarine mass failures

208

Underwater acoustic imaging: physically-motivated sparse models  

E-Print Network (OSTI)

Underwater acoustic imaging: physically-motivated sparse models and validation on real data N hal-00677287,version1-4Jun2012 #12;Underwater acoustic imaging (UWA)hal-00677287,version1-4Jun2012 #12;Underwater acoustic imaging: direct problem Successive emission sequences, or pings, indexed by p. ep

Paris-Sud XI, Université de

209

ATTEMPTS TO GUIDE SMALL FISH WITH UNDERWATER SOUND  

E-Print Network (OSTI)

ATTEMPTS TO GUIDE SMALL FISH WITH UNDERWATER SOUND Marine Biological Laboratory NOV 9 -1953 WOODS, Director ATTEMPTS TO GUIDE SMALL FISH WITH UNDERWATER SOUND by Clifford J. Burner and Harvey Lo Moore" - Electro-magnetic transducer 6 Piezo-electric crystal transducer l8 "Wampus" - Underwater turbine 20

210

UNDERWATER TELEVISION VEHICLE FOR USE IN FISHERIES RESEARCH  

E-Print Network (OSTI)

UNDERWATER TELEVISION VEHICLE FOR USE IN FISHERIES RESEARCH (Marine Biological Laboratoiy j -. :I57 UNDERWATER TELEVISION VEHiaE FOR USE IN FISHERIES RESEARCH By R. F. Sand/""and R. L. McNeely''"* K^hief, Gear IN UMDERSFA RESEARCH 12 REFERENCES l5 LIST OF ILLUSTRATIONS Figure 1. Underwater Television Vehicle 3 2

211

Proceedings of the 11 European Conference on Underwater Acoustics  

E-Print Network (OSTI)

Proceedings of the 11 th European Conference on Underwater Acoustics INCOHERENT CHANGE DETECTION on Underwater Acoustics images. This allows performing a segmentation of the master image at the coarser stage,version1-7Sep2012 #12;Proceedings of the 11 th European Conference on Underwater Acoustics The idea

Paris-Sud XI, Université de

212

Mote-based Underwater Sensor Networks: Opportunities, Challenges, and Guidelines  

E-Print Network (OSTI)

Mote-based Underwater Sensor Networks: Opportunities, Challenges, and Guidelines Raja Jurdak (lopes@uci.edu) University of California, Irvine CA 92697 USA Abstract. Most underwater networks rely deployments of underwater sensor networks and has forced researchers to use simulations to investigate

Lopes, Cristina Videira

213

ATTEMPTS TO GUIDE SMALL FISH WITH UNDERWATER SOUND  

E-Print Network (OSTI)

403 ATTEMPTS TO GUIDE SMALL FISH WITH UNDERWATER SOUND -iD^ SPECIAL SCIENTIFK REPOKT-FISHERIES Na ATTEMPTS TO GUIDE SMALL FISH WITH UNDERWATER SOUND by Clifford J. Burner and Harvey L.. Moore United States-electric crystal transducer "Wampus" - Underwater turbine Electromagnetic transducer. Bell (lK-2) Summary

214

Underwater locomotion from oscillatory shape deformations Patricio A. Vela  

E-Print Network (OSTI)

Underwater locomotion from oscillatory shape deformations Patricio A. Vela , Kristi A. Morgansen@robotics.caltech.edu Abstract: This paper considers underwater propulsion that is generated by variations in body shape. We underwater vehicles that propel and steer themselves by changes in shape (e.g. [11, 13, 15

Sontag, Eduardo

215

Underwater Sensor Networking: Research Challenges and Potential Applications  

E-Print Network (OSTI)

Underwater Sensor Networking: Research Challenges and Potential Applications USC/ISI Technical, and underwater robotics. We identify research directions in short-range acoustic communications, MAC, time in applications today on the ground, underwater operations remain quite limited by comparison. Remotely controlled

Heidemann, John

216

BOUSSINESQ MODELING OF SURFACE WAVES DUE TO UNDERWATER LANDSLIDES  

E-Print Network (OSTI)

BOUSSINESQ MODELING OF SURFACE WAVES DUE TO UNDERWATER LANDSLIDES DENYS DUTYKH # AND HENRIK KALISCH Abstract. Consideration is given to the influence of an underwater landslide on waves at the surface of a tsunami are underwater earth­ quakes, and submarine mass failures. Among the broad class of submarine mass

217

BOUSSINESQ MODELING OF SURFACE WAVES DUE TO UNDERWATER LANDSLIDES  

E-Print Network (OSTI)

BOUSSINESQ MODELING OF SURFACE WAVES DUE TO UNDERWATER LANDSLIDES DENYS DUTYKH AND HENRIK KALISCH Abstract. Consideration is given to the influence of an underwater landslide on waves at the surface tsunamis. Two distinct generation mechanisms of a tsunami are underwater earthquakes, and submarine mass

218

An Underwater Network Testbed: Design, Implementation and Measurement  

E-Print Network (OSTI)

An Underwater Network Testbed: Design, Implementation and Measurement Zheng Peng, Jun-Hong Cui-Lab, an underwater acoustic sensor network lab testbed. Aqua-Lab consists of a water tank, a set of acoustic algorithms and protocols designed for underwater sensor networks. Categories and Subject Descriptors C.2.m

Wang, Bing

219

Underwater Color Constancy : Enhancement of Automatic Live Fish Recognition  

E-Print Network (OSTI)

Underwater Color Constancy : Enhancement of Automatic Live Fish Recognition M. Chambah, D. Semani-mail: rizzi@dti.unimi.it ABSTRACT We present in this paper some advances in color restoration of underwater images, especially with regard to the strong and non uniform color cast which is typical of underwater

Paris-Sud XI, Université de

220

Underwater vehicles: The minimum time problem Department of Mathematics  

E-Print Network (OSTI)

Underwater vehicles: The minimum time problem M. Chyba Department of Mathematics 2565 McCarthy Mall for a class of underwater vehicles. We focus on the situation of initial and final configurations at rest the analysis of the minimum time problem for a special class of underwater vehicles, see [5], [6] for previous

Sussmann, Hector

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

An algebraic perspective to single-transponder underwater navigation  

E-Print Network (OSTI)

An algebraic perspective to single-transponder underwater navigation J´er^ome Jouffroy and Johann Reger Abstract-- This paper studies the position estimation of an underwater vehicle using a single are presented to illus- trate the approach. I. INTRODUCTION As an underwater counterpart of GPS, Long Base

Knobloch,Jürgen

222

Color-Accurate Underwater Imaging using Perceptual Adaptive Illumination  

E-Print Network (OSTI)

Color-Accurate Underwater Imaging using Perceptual Adaptive Illumination Iuliu Vasilescu, Carrick, and ecosystem health and activity monitoring. Underwater robots are equipped with motor control for large scale transects but they lack sensors that enable capturing color-accurate underwater images. We present a method

Farritor, Shane

223

Clean, economical, underwater (hydrocarbon) storage  

SciTech Connect

A consortium consisting of Howaldtswerke-Deutsche Werft A.G., Phoenix Gummiwerke A.G., Strabag Bau-A.G., and Bugsier Reederei und Bergungs-A.G. offers a plausible solution to the large-scale underwater storage of hydrocarbons. Up to 20 storage compartments of 8000 cu m capacity can be assembled for a capacity of 160,000 cu m. Each compartment is divided in half by a nylon-reinforced polyurethane diaphragm which isolates oil or other products on one side from sea-water ballast on the other side. As oil is pumped into storage on one side of the diaphragm, the diaphragm moves and ballast on the other side is displaced to the sea. Ballast re-enters the compartment during unloading. The system can enable small offshore platforms to produce more economically. Cargo tankers load at 8000 cu m/hr. The tanks will be used in 200 m or greater water depths. The loading station is installed in a buoy 30 m below the water surface.

1978-08-01T23:59:59.000Z

224

WILEY WCMC SPECIAL ISSUE ON UNDERWATER SENSOR NETWORKS (INVITED) 1 Prospects and Problems of Wireless Communication for Underwater  

E-Print Network (OSTI)

WILEY WCMC SPECIAL ISSUE ON UNDERWATER SENSOR NETWORKS (INVITED) 1 Prospects and Problems of Wireless Communication for Underwater Sensor Networkss Lanbo Liu, Shengli Zhou, and Jun-Hong Cui The work ISSUE ON UNDERWATER SENSOR NETWORKS (INVITED) 2 Abstract This paper reviews the physical fundamentals

Cui, Jun-Hong

225

Autonomous Exploration: Driven by Uncertainty  

E-Print Network (OSTI)

Autonomous Exploration: Driven by Uncertainty Peter Whaite and Frank P. Ferrie TR-CIM-93-17 1993-6319 Telex: 05 268510 FAX: 514 398-7348 Email: cim@cim.mcgill.ca #12;Autonomous Exploration: Driven

Dudek, Gregory

226

Utility Line Inspections and Audits  

Science Conference Proceedings (OSTI)

Utility Line Inspections and Audits provides utility engineers with a concise reference for the pros, cons, and how to related to performing various line inspections and audits.

2007-03-21T23:59:59.000Z

227

Remotely operated submersible underwater suction apparatus  

DOE Patents (OSTI)

A completely submersible, remotely operated underwater suction device for collection of irradiated materials in a nuclear pool is disclosed. The device includes a pump means for pumping water through the device, a filter means for capturing irradiated debris, remotely operated releasable connector means, a collection means and a means for remotely maneuvering the collection means. The components of the suction device may be changed and replaced underwater to take advantage of the excellent radiation shielding ability of water to thereby minimize exposure of personnel to radiation.

Kristan, Louis L. (2111 Brentwood Dr., Idaho Falls, ID 83402)

1990-01-01T23:59:59.000Z

228

Autonomous data transmission apparatus  

DOE Patents (OSTI)

A autonomous borehole data transmission apparatus for transmitting measurement data from measuring instruments at the downhole end of a drill string by generating pressure pulses utilizing a transducer longitudinally responsive to magnetic field pulses caused by electrical pulses corresponding to the measured downhole parameters.

Kotlyar, Oleg M. (4675 W. 3825 S, Salt Lake City, UT 84120)

1997-01-01T23:59:59.000Z

229

Autonomous data transmission apparatus  

DOE Patents (OSTI)

A autonomous borehole data transmission apparatus is described for transmitting measurement data from measuring instruments at the downhole end of a drill string by generating pressure pulses utilizing a transducer longitudinally responsive to magnetic field pulses caused by electrical pulses corresponding to the measured downhole parameters. 4 figs.

Kotlyar, O.M.

1997-03-25T23:59:59.000Z

230

Applications of Underwater Search and Identification Technology on Monitoring of Underwater Structures and Analysis of Upper-Layer Geological Properties of Seabed.  

E-Print Network (OSTI)

??The application of underwater search and identification technology has been widely used in the underwater engineering. There are two major fields in this thesis: monitoring… (more)

Yeh, Ti-ting

2005-01-01T23:59:59.000Z

231

Development of Underwater Laser Cladding and Underwater Laser Seal Welding Techniques for Reactor Components (II)  

SciTech Connect

Stress corrosion cracking (SCC) is one of the major reasons to reduce the reliability of aged reactor components. Toshiba has been developing underwater laser welding onto surface of the aged components as maintenance and repair techniques. Because most of the reactor internal components to apply this underwater laser welding technique have 3-dimensional shape, effect of welding positions and welded shapes are examined and presented in this report. (authors)

Masataka Tamura; Shohei Kawano; Wataru Kouno; Yasushi Kanazawa [Toshiba Corporation (Japan)

2006-07-01T23:59:59.000Z

232

An underwater acoustic channel model using ray tracing in ns-2  

Science Conference Proceedings (OSTI)

Underwater Acoustic Sensor Network (UASN) is the enabling technology for real-time underwater monitoring and data collection. The costly underwater trials and unknown underwater acoustic modem infrastructures increase the need and importance of a reliable ... Keywords: ns-2, ray tracing, sensor network, underwater

Tarik Çinar; M. Bülent Örencik

2009-12-01T23:59:59.000Z

233

Silent Positioning in Underwater Acoustic Sensor Networks  

E-Print Network (OSTI)

In this paper, we present a silent positioning scheme termed as UPS for underwater acoustic sensor networks. UPS relies on the time-difference of arrivals measured locally at a sensor to detect range differences from the sensor to four anchor nodes. These range differences are averaged over multiple beacon intervals before they are combined to estimate the 3D sensor location through trilateration. UPS requires no time-synchronization and provides location privacy at underwater vehicles/sensors whose locations need to be determined. To study the performance of UPS, we model the underwater acoustic channel as a modified Ultra Wide Band (UWB) S-V model: the arrival of each path cluster and paths within each cluster follow double Poisson distributions, and the multipath channel gain follows a Rician distribution. Based on this channel model, we perform both theoretical analysis and simulation study on the position error of UPS under acoustic fading channels. The obtained results indicate that UPS is an effective scheme for underwater vehicle/sensor self-positioning.

Xiuzhen Cheng; Haining Shu; Qilian Liang; David Hung-chang Du

2007-01-01T23:59:59.000Z

234

Software Modems for Underwater Sensor Networks  

E-Print Network (OSTI)

Abstract — The prohibitive monetary cost and high power consumption of existing acoustic hardware represent an obstacle for underwater sensor network deployment efforts. To address this issue, we propose underwater networks that rely on widely available speakers and microphones in electronic devices, coupled with software modems, to establish acoustic communication links. In this paper, we analytically and empirically explore the potential of this acoustic communication system for the underwater environment with a generic PC microphone as a receiver and with the Tmote Invent sensor module speaker as a transmitter. After waterproofing the components with elastic membranes that provide suitable coupling with the water, our experiments profile the hardware communication capability in a controlled aquatic environment. The medium profiling results expose the favorable frequencies of operation for the hardware, enabling us to design a software FSK modem. The experiments to evaluate the data transfer capability of our 8-frequency FSK software modem in the underwater channel yield an error-free channel capacity of 24 bps, and they also demonstrate that the system supports data rates up to at least 48 bps within a transmission range of 17 m. I.

Raja Jurdak; Pedro Aguiar; Pierre Baldi; Cristina Videira Lopes

2007-01-01T23:59:59.000Z

235

KE Basin underwater visual fuel survey  

SciTech Connect

Results of an underwater video fuel survey in KE Basin using a high resolution camera system are presented. Quantitative and qualitative information on fuel degradation are given, and estimates of the total fraction of ruptured fuel elements are provided. Representative photographic illustrations showing the range of fuel conditions observed in the survey are included.

Pitner, A.L.

1995-02-01T23:59:59.000Z

236

An intelligent inspection and survey robot. Volume 1  

Science Conference Proceedings (OSTI)

ARIES {number_sign}1 (Autonomous Robotic Inspection Experimental System), has been developed for the Department of Energy to survey and inspect drums containing low-level radioactive waste stored in warehouses at DOE facilities. The drums are typically stacked four high and arranged in rows with three-foot aisle widths. The robot will navigate through the aisles and perform an inspection operation, typically performed by a human operator, making decisions about the condition of the drums and maintaining a database of pertinent information about each drum. A new version of the Cybermotion series of mobile robots is the base mobile vehicle for ARIES. The new Model K3A consists of an improved and enhanced mobile platform and a new turret that will permit turning around in a three-foot aisle. Advanced sonar and lidar systems were added to improve navigation in the narrow drum aisles. Onboard computer enhancements include a VMEbus computer system running the VxWorks real-time operating system. A graphical offboard supervisory UNIX workstation is used for high-level planning, control, monitoring, and reporting. A camera positioning system (CPS) includes primitive instructions for the robot to use in referencing and positioning the payload. The CPS retracts to a more compact position when traveling in the open warehouse. During inspection, the CPS extends up to deploy inspection packages at different heights on the four-drum stacks of 55-, 85-, and 110-gallon drums. The vision inspection module performs a visual inspection of the waste drums. This system will locate and identify each drum, locate any unique visual features, characterize relevant surface features of interest and update a data-base containing the inspection data.

NONE

1995-12-15T23:59:59.000Z

237

Software Modems for Underwater Sensor Networks Raja Jurdak, Pedro Aguiar, Pierre Baldi, and Cristina Videira Lopes  

E-Print Network (OSTI)

Software Modems for Underwater Sensor Networks Raja Jurdak, Pedro Aguiar, Pierre Baldi acoustic hardware represent an obstacle for underwater sensor network deployment efforts. To address this issue, we propose underwater networks that rely on widely available speakers and microphones

Aguiar, Pedro M. Q.

238

DISCRETE TRANSPARENT BOUNDARY CONDITIONS FOR WIDE ANGLE PARABOLIC EQUATIONS IN UNDERWATER  

E-Print Network (OSTI)

DISCRETE TRANSPARENT BOUNDARY CONDITIONS FOR WIDE ANGLE PARABOLIC EQUATIONS IN UNDERWATER ACOUSTICS "parabolic" equations (WAPEs) in underwater acoustics (assuming cylindrical symmetry). Existing the discretization of transparent bottom boundary conditions. In oceanography one wants to calculate the underwater

Ehrhardt, Matthias

239

Piping inspection round robin  

Science Conference Proceedings (OSTI)

The piping inspection round robin was conducted in 1981 at the Pacific Northwest National Laboratory (PNNL) to quantify the capability of ultrasonics for inservice inspection and to address some aspects of reliability for this type of nondestructive evaluation (NDE). The round robin measured the crack detection capabilities of seven field inspection teams who employed procedures that met or exceeded the 1977 edition through the 1978 addenda of the American Society of Mechanical Engineers (ASME) Section 11 Code requirements. Three different types of materials were employed in the study (cast stainless steel, clad ferritic, and wrought stainless steel), and two different types of flaws were implanted into the specimens (intergranular stress corrosion cracks (IGSCCs) and thermal fatigue cracks (TFCs)). When considering near-side inspection, far-side inspection, and false call rate, the overall performance was found to be best in clad ferritic, less effective in wrought stainless steel and the worst in cast stainless steel. Depth sizing performance showed little correlation with the true crack depths.

Heasler, P.G.; Doctor, S.R. [Pacific Northwest National Lab., Richland, WA (United States)

1996-04-01T23:59:59.000Z

240

Underwater Sensor Network (UWSN) LabUnderwater Sensor Network (UWSN) Lab Demonstration of PCDemonstration of PC--based and DSPbased and DSP--basedbased  

E-Print Network (OSTI)

Underwater Sensor Network (UWSN) LabUnderwater Sensor Network (UWSN) Lab Demonstration--OFDM is one ultimate solution for highOFDM is one ultimate solution for high--datadata--raterate underwater acoustic communications!underwater acoustic communications! PC based implementationPC based implementation

Zhou, Shengli

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Inspection Report: IG-0770  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

U.S. Department of Energy U.S. Department of Energy Office of Inspector General Office of Inspections and Special Inquiries Inspection Report Protective Force MK-19 Grenade Launcher Use at the National Nuclear Security Administration's Pantex Facility DOE/IG-0770 July 2007 Department of Energy Washington, DC 20585 July 2 0 , 2007 MEMORANDUM FOR TWSECRETARY FROM: 4- Greg ry . riedman Inspector General SUBJECT: INFORMATION: Inspection Report on "Protective Force MK-19 Grenade Launcher Use at the National Nuclear Security Administration's Pantex Facility" BACKGROUND The National Nuclear Security Administration's (NNSA) Pantex Facility is this Nation's only nuclear weapons assembly and disassembly facility. The nature of such work necessitates the development and implementation of protection strategies based upon the

242

Inspection Report: IG-0746  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

l nspector General l nspector General Office of Inspections and Special Inquiries Inspection Report Work Packages for Site Support Service; at Los Alamos National Laboratory Department of Energy Washington, DC 20585 November 29, 2006 MEMORANDUM FOR TI38 S E C m U R Y FROM: h p Gregor - . riedman Inspector General SUBJECT: INFORMATION: Inspection Report on "Work Packages for Site Support Services at Los Alalnos National Laboratory" The Department of Energy's Los Alarnos National Laboratory (LANL) enhances global security by ensuring the safety and reliability of the U.S. nuclear weapons stockpile; developing technical solutioils to reduce the threat of weapons of mass destnlction; and solving problems related to energy, environn~ent, infrastructure, healtl~, and national security. Site support services at the

243

Inspection, Sandia National Laboratories - April 2008 | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Inspection, Sandia National Laboratories - April 2008 Inspection, Sandia National Laboratories - April 2008 April 2008 Inspection of Environment, Safety and Health Programs at the...

244

Independent Oversight Inspection, Idaho National Laboratory ...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Inspection, Idaho National Laboratory - August 2007 Independent Oversight Inspection, Idaho National Laboratory - August 2007 August 2007 Inspection of Environment, Safety, and...

245

Independent Oversight Inspection, Argonne National Laboratory...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Inspection, Argonne National Laboratory, Volume 1 - May 2005 Independent Oversight Inspection, Argonne National Laboratory, Volume 1 - May 2005 May 2005 Inspection of Environment,...

246

Inspection Report: IG-0383 | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

3 Inspection Report: IG-0383 January 16, 1996 Inspection of Human Subject Research in Intelligence and Intelligence-Related Projects Inspection Report: IG-0383...

247

Inspection Report: IG-0367 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7 Inspection Report: IG-0367 March 16, 1995 Report on Inspection of an Intelligence Work-For-Others Project at the Idaho Operations Office Inspection Report: IG-0367...

248

Inspection Report: INS-9601 | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

601 Inspection Report: INS-9601 October 13, 1996 Report on the Intelligence Oversight Inspection of the Special Technologies Laboratory Inspection Report: INS-9601...

249

Utilities Inspection Technologies  

E-Print Network (OSTI)

Preventive and predictive maintenance programs are enhanced by using various inspection technologies to detect problems and potential failures before catastrophic failure. This paper discusses successful inspection technologies that have been employed in industrial facilities within the Navy. Specific systems include compressed air, electrical distribution, natural gas, steam, and hot water. Technologies include: • Enhanced optical methods (infrared thermography, boroscopes, and fiberscopes) • Acoustic emissions and vibration signature analysis • Locating and quantifying methods (deep probe temperature analysis, electromagnetic pipe and cable locators, holiday and fault locators, and radar mapping).

Messock, R. K.

1993-03-01T23:59:59.000Z

250

rail inspections matrix  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

COMPARISON OF COMMERCIAL VEHICLE SAFETY ALLIANCE RECOMMENDED NATIONAL PROCEDURES COMPARISON OF COMMERCIAL VEHICLE SAFETY ALLIANCE RECOMMENDED NATIONAL PROCEDURES AND OUT-OF-SERVICE CRITERIA FOR THE ENHANCED SAFETY INSPECTION OF COMERCIAL HIGHWAY VEHICLES TRANSPORTING TRANSURANICS, SPENT NUCLEAR FUEL, AND HIGH LEVEL WASTE TO RAIL INSPECTION STANDARDS -TEC-WG, RAIL TOPIC GROUP 1 Commercial Vehicle Safety Alliance Requirement Applicable Federal Regulation (All 49CFR unless otherwise noted) AAR Rule or Standard Applicable Industry / Regulatory Initiatives / Recommended Practices 1.0 GENERAL 215-RAILROAD FREIGHT CAR SAFETY STANDARDS 221-REAR END MARKING DEVICE-PASSENGER, COMMUTER AND FREIGHT TRAINS 223-SAFETY GLAZING STANDARDS-LOCOMOTIVES, PASSENGER CARS AND CABOOSES 229-RAILROAD LOCOMOTIVE

251

Underwater Acoustic Sensor Network with Energy Harvesting Nodes.  

E-Print Network (OSTI)

??This thesis explores the possibility of a self sustained and service free Underwater Acoustic Sensor Network (UASN). The network nodes are installed along a subsea… (more)

Huseby, Morten

2011-01-01T23:59:59.000Z

252

Reconstruction of 3D Points From Uncalibrated Underwater Video.  

E-Print Network (OSTI)

??This thesis presents a 3D reconstruction software pipeline that is capable of generating point cloud data from uncalibrated underwater video. This research project was undertaken… (more)

Cavan, Neil

2011-01-01T23:59:59.000Z

253

Underwater kicking following the freestyle tumble-turn.  

E-Print Network (OSTI)

??Swim turns are a component of competitive swimming where considerable advantage can be gained or lost. This thesis investigates underwater dolphin and flutter kicking techniques… (more)

Clothier, Peter

2004-01-01T23:59:59.000Z

254

Reliable Data Communication and Storage in Underwater Acoustic Networks.  

E-Print Network (OSTI)

??Underwater acoustic communications (UAC) and networking (UAN) are promising paradigms for various oceanic applications. However, acoustic signal transmissions are characterized by long propagation delay, frequency-dependent… (more)

Cao, Rui

2011-01-01T23:59:59.000Z

255

High-Speed Fracture Phenomena of Glass Bottle by Underwater ...  

Science Conference Proceedings (OSTI)

Presentation Title, High-Speed Fracture Phenomena of Glass Bottle by Underwater Shock Wave. Author(s), Hidetoshi Sakamoto, Shinjirou Kawabe, Yoshifumi ...

256

Development of a Field Deployable Underwater Laser Scanning System.  

E-Print Network (OSTI)

??As humans seek to explore and exploit underwater environments and resources the need for tools and techniques to assist in this is critical. An important… (more)

Gillham, Jason

2011-01-01T23:59:59.000Z

257

Use of an acoustic network as an underwater positioning system .  

E-Print Network (OSTI)

??Underwater acoustic networks provide an interface between UUVs and surface or land-based control systems. By exploiting range data measured incidental to communications on these networks… (more)

Reed, Michael S.

2006-01-01T23:59:59.000Z

258

Underwater tanker ballast water/oil separation  

SciTech Connect

The invention contemplates tranferring ballast water contaminated with entrained or emulsified oil to an underwater disengagement zone operating on the water displacement principle, as exemplified by an underwater storage tank having an upwardly convex shell with an opening in its bottom through which water can move into and out of the shell as the volume of oil enclosed within the storage zone fluctuates. The ballast mixture of water and oil is introduced into the disengagement zone, where it separates under the influence of gravity into separate oil and water phases. The oil layer rises to a point from which it can be recovered, while the separated water flows out of the open bottom of the zone into the body of water. (2 claims)

McCabe, J.S.

1973-10-02T23:59:59.000Z

259

Underwater splice for submarine coaxial cable  

SciTech Connect

The invention is a device for splicing submarine coaxial cable underwater on the seafloor with a simple push-on operation to restore and maintain electrical and mechanical strength integrity; the splice device is mateable directly with the severed ends of a coaxial cable to be repaired. Splicing assemblies comprise a dielectric pressure compensating fluid filled guide cavity, a gelled castor oil cap and wiping seals for exclusion of seawater, electrical contacts, a cable strength restoration mechanism, and a pressure compensation system for controlled extrusion of and depletion loss prevention of dielectric seal fluid during cable splicing. A splice is made underwater by directly inserting prepared ends of coaxial cable, having no connector attachments, into splicing assemblies.

Inouye, A.T.; Roe, T. Jr.; Tausing, W.R.; Wilson, J.V.

1984-10-30T23:59:59.000Z

260

Capacity Scaling Laws for Underwater Networks  

E-Print Network (OSTI)

The underwater acoustic channel is characterized by a path loss that depends not only on the transmission distance, but also on the signal frequency. Signals transmitted from one user to another over a distance $l$ are subject to a power loss of $l^{-\\alpha}{a(f)}^{-l}$. Although a terrestrial radio channel can be modeled similarly, the underwater acoustic channel has different characteristics. The spreading factor $\\alpha$, related to the geometry of propagation, has values in the range $1 \\leq \\alpha \\leq 2$. The absorption coefficient $a(f)$ is a rapidly increasing function of frequency: it is three orders of magnitude greater at 100 kHz than at a few Hz. Existing results for capacity of wireless networks correspond to scenarios for which $a(f) = 1$, or a constant greater than one, and $\\alpha \\geq 2$. These results cannot be applied to underwater acoustic networks in which the attenuation varies over the system bandwidth. We use a water-filling argument to assess the minimum transmission power and optimum...

Lucani, Daniel E; Stojanovic, Milica

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Note on star-autonomous comonads  

E-Print Network (OSTI)

We develop an alternative approach to star-autonomous comonads via linearly distributive categories. It is shown that in the autonomous case the notions of star-autonomous comonad and Hopf comonad coincide.

Pastro, Craig

2010-01-01T23:59:59.000Z

262

Airborne Inspection Technology: Market Survey  

Science Conference Proceedings (OSTI)

This report presents findings of an investigation into various airborne inspection technologies currently used within the electric utility industry.

2002-03-04T23:59:59.000Z

263

Autonomic load-testing framework  

Science Conference Proceedings (OSTI)

In this paper, we present a method for performance testing of transactional systems. The methods models the system under test, finds the software and hardware bottlenecks and generate the workloads that saturate them. The framework is autonomic, the ... Keywords: autonomic system, performance models, performance testing, stress testing

Cornel Barna; Marin Litoiu; Hamoun Ghanbari

2011-06-01T23:59:59.000Z

264

Flexible ultrasonic pipe inspection apparatus  

DOE Patents (OSTI)

Pipe crawlers, pipe inspection {open_quotes}rabbits{close_quotes} and similar vehicles are widely used for inspecting the interior surfaces of piping systems, storage tanks and process vessels for damaged or flawed structural features. This paper describes the design of a flexible, modular ultrasonic pipe inspection apparatus.

Jenkins, C.F.; Howard, B.D.

1994-01-01T23:59:59.000Z

265

A Framework for Testing of Wireless Underwater Robots  

Science Conference Proceedings (OSTI)

Underwater applications of wireless robots are foreseen to hold a market potential. The standardization process will drive the development of the necessary technology so that devices can work cooperatively. Specific testing procedures have to be developed ... Keywords: Conformance, Interoperability, Testing, Underwater, Wireless robot

J. Poncela; M. C. Aguayo-Torres

2013-06-01T23:59:59.000Z

266

Application of optimization algorithms to trajectory planning for underwater gliders  

Science Conference Proceedings (OSTI)

Underwater gliders are a technology that have demonstrated to be a valid tool for diverse applications in the oceans including validation of currents models, environmental control or security. Due to their low speed, gliders might drift significantly ... Keywords: path planning, underwater gliders

José Isern-Gonz$#225;lez; Daniel Hern$#225;ndez-Sosa; Enrique Fern$#225;ndez-Perdomo; Jorge Cabrera-G$#225;mez; Antonio C. Domínguez-Brito; Víctor Prieto-Marañón

2011-02-01T23:59:59.000Z

267

Focused beam routing protocol for underwater acoustic networks  

Science Conference Proceedings (OSTI)

Multi-hop transmission is considered for large coverage areas in bandwidth-limited underwater acoustic networks. In this paper, we present a scalable routing technique based on location information, and optimized for minimum energy per bit consumption. ... Keywords: power control, routing, underwater acoustic networks

Josep Miquel Jornet; Milica Stojanovic; Michele Zorzi

2008-09-01T23:59:59.000Z

268

Towards automated design of MAC protocols for underwater wireless networks  

Science Conference Proceedings (OSTI)

We present a framework for the automated design of MAC protocols for underwater acoustic wireless networks. We formulate a protocol optimization problem in which the exchange of control packets is explicitly modeled. A protocol optimization program generates ... Keywords: automation, mac, network, wireless underwater protocol

Volkan Rodoplu; Amir Aminzadeh Gohari; Wei Tang

2008-09-01T23:59:59.000Z

269

Study on Hydrodynamic Outline of an Unmanned Underwater Vehicle  

Science Conference Proceedings (OSTI)

Unmanned Underwater Vehicle (UUV) is being widely developed and used in many areas. In order to meet the low resistance and low noise requirements of a kind of UUV for long voyage, the outline curve and parameters of different sections of the UUV are ... Keywords: Unmanned underwater vehicle, Hydrodynamic outline, Low resistance, Low noise

Shao Zhiyu, Fang Jing, Feng Shunshan, Cheng Yufeng

2013-01-01T23:59:59.000Z

270

Underwater sensor networking: Research challenges and potential applications  

E-Print Network (OSTI)

This report summarizes our research directions in underwater sensor networks. We highlight potential applications to off-shore oilfields for seismic monitoring, equipment monitoring, and underwater robotics. We identify research directions in short-range acoustic communications, MAC, time synchronization, and localization protocols for highlatency acoustic networks, long-duration network sleeping, and application-level data scheduling. 1

John Heidemann; Yuan Li; Affan Syed; Jack Wills; Wei Ye

2006-01-01T23:59:59.000Z

271

Design of an AUV recharging system; Design of an Autonomous Underwater Vehicle recharging system.  

E-Print Network (OSTI)

??The Odyssey AUV Series uses a Lithium-ion Polymer battery which is able to supply the necessary power for a limited mission time. The current method… (more)

Miller, Bryan D. (Bryan David)

2005-01-01T23:59:59.000Z

272

Design and construction of a low cost, modular Autonomous Underwater Vehicle  

E-Print Network (OSTI)

Over the next 5 years, MIT Sea Grant is tasked with locating and photographing Didemnum Vexillum, an invasive species which threatens New England fishing habitats. Didemnum research is conducted in the photosynthesis zone ...

Brege, Eric D

2011-01-01T23:59:59.000Z

273

A strategy for the use of light emitting diodes by autonomous underwater vehicles  

E-Print Network (OSTI)

Light Emitting Diode (LED) technology has advanced dramatically in a few short years. An expensive and difficult to manufacture LED array containing nearly 100 individual LEDs and measuring at least 5 cm² can now be replaced ...

Curran, Joseph R. (Joseph Robinson)

2004-01-01T23:59:59.000Z

274

Design and implementation of an underwater sound recording device  

SciTech Connect

The purpose of this study was to design and build two versions of an underwater sound recording device. The device designed is referred to as the Underwater Sound Recorder (USR), which can be connected to one or two hydrophones or other underwater sound sensors. The URS contains a 26 dB preamplifier and a user selectable gain that permits additional amplification of input to the system from 26 dB to 46 dB. Signals within the frequency range up to 15 kHz may be recorded using the USR. Examples of USR applications are monitoring underwater processes that have the potential to create large pressure waves that could potentially harm fish or other aquatic life, such as underwater explosions or pile driving. Additional applications are recording sound generated by vessels or the vocalizations of some marine mammals, such as the calls from many species of whales.

Martinez, Jayson J.; Myers, Joshua R.; Carlson, Thomas J.; Deng, Zhiqun; Rohrer, John S.; Caviggia, Kurt A.

2011-09-19T23:59:59.000Z

275

Streamline magnetic inspection of OCTGs  

Science Conference Proceedings (OSTI)

This article reports that supply and demand imbalances in the drilling industry are allowing operators to make drilling contracts more stringent, despite reduced day rates. One typical requirement is more thorough inspection of drill string and bottomhole assemblies to ensure equipment-related failures don't increase costs. Magnetic inspection techniques for oil country tubular goods are becoming more advanced. However, common misperceptions often needlessly plague the inspection process. Today, almost all high-grade tubular goods are inspected in the plain-end state according to guidelines which are more stringent than those outlined by API inspection specification 5AX. Most tubular goods are inspected three to four times before the operator is satisfied they are suitable to run downhole. Often such inspections are conducted by different companies employing at least two techniques: magnetic flux leakage (MFL) and ultrasonics (US).

Stanley, R.

1987-01-01T23:59:59.000Z

276

Inspection Report: IG-0821  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Fire Suppression and Related Services Fire Suppression and Related Services at Los Alamos National Laboratory DOE/IG-0821 September 2009 U.S. Department of Energy Office of Inspector General Office of Inspections Department of Energy Washington, DC 20585 September 11, 2009 MEMORANDUM FOR THE SECRETARY FROM: Gregory H. Friedman Inspector General SUBJECT: INFORMATION: Inspection Report on "Fire Suppression and Related Services at Los Alamos National Laboratory" BACKGROUND The Department of Energy's (DOE's) Los Alamos National Laboratory (LANL) is a multidisciplinary research institution engaged in strategic science on behalf of national security. LANL operates in "unique" hazard environments, to include special nuclear materials, explosives, and hazardous chemicals, that create special fire suppression and

277

NSLS Electrical Equipment Inspection  

NLE Websites -- All DOE Office Websites (Extended Search)

Electrical Equipment Inspection Information Electrical Equipment Inspection Information A note to vendors visiting NSLS A note to users visiting NSLS Proteus Electrical Conformity Remediation Currently Certified Electrical Equipment Inspectors: First Line Contacts Email Extension Poshka, Dennis poshka@bnl.gov 2825 Alternate Contacts Boerner Jr, Albert aboerner@bnl.gov 5990 Buda, Scott buda@bnl.gov 3914 Caruso, Michael caruso@bnl.gov 4100 Chmiel, Robert chmiel@bnl.gov 8141 Church, Randolph church@bnl.gov 2736 Clay, Barret clay@bnl.gov 7284 D'Alsace, Roy dalsace@bnl.gov 3973 Danneil, Christopher cdanneil@bnl.gov 8609 Davila, Peter davila@bnl.gov 7625 De Toll, Peter detoll@bnl.gov 4100 Durfee, Douglas ddurfee@bnl.gov 7625 Fulkerson, Michael fulkerso@bnl.gov 5194 Gallagher, John jgallagher@bnl.gov 5770 Harder, David dharder@bnl.gov 4978

278

Infrared microscope inspection apparatus  

DOE Patents (OSTI)

Apparatus and system for inspecting infrared transparents, such as an array of photovoltaic modules containing silicon solar cells, includes an infrared microscope, at least three sources of infrared light placed around and having their axes intersect the center of the object field and means for sending the reflected light through the microscope. The apparatus is adapted to be mounted on an X-Y translator positioned adjacent the object surface. 4 figs.

Forman, S.E.; Caunt, J.W.

1985-02-26T23:59:59.000Z

279

Inspection tester for explosives  

DOE Patents (OSTI)

An inspection tester that can be used anywhere as a primary screening tool by non-technical personnel to determine whether a surface contains explosives. It includes a body with a sample pad. First and second explosives detecting reagent holders and dispensers are operatively connected to the body and the sample pad. The first and second explosives detecting reagent holders and dispensers are positioned to deliver the explosives detecting reagents to the sample pad. A is heater operatively connected to the sample pad.

Haas, Jeffrey S. (San Ramon, CA); Simpson, Randall L. (Livermore, CA); Satcher, Joe H. (Patterson, CA)

2007-11-13T23:59:59.000Z

280

Inspection tester for explosives  

DOE Patents (OSTI)

An inspection tester that can be used anywhere as a primary screening tool by non-technical personnel to determine whether a surface contains explosives. It includes a body with a sample pad. First and second explosives detecting reagent holders and dispensers are operatively connected to the body and the sample pad. The first and second explosives detecting reagent holders and dispensers are positioned to deliver the explosives detecting reagents to the sample pad. A is heater operatively connected to the sample pad.

Haas, Jeffrey S. (San Ramon, CA); Simpson, Randall L. (Livermore, CA); Satcher, Joe H. (Patterson, CA)

2010-10-05T23:59:59.000Z

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Underwater robots require adequate guidance and control to perform useful tasks. Visual  

E-Print Network (OSTI)

Abstract Underwater robots require adequate guidance and control to perform useful tasks. Visual trained by reinforcement learn- ing our aim is to enable an underwater robot to hold station on a reef technologies for underwater exploration and obser- vation. Our objectives are to enable underwater robots

282

Aqua-Net: An Underwater Sensor Network Architecture --Design and Implementation  

E-Print Network (OSTI)

Aqua-Net: An Underwater Sensor Network Architecture -- Design and Implementation Zheng Peng, Zhong Department, University of Connecticut, Storrs, CT 06269 Abstract Underwater sensor network (UWSN) has emerged architecture for underwater sensor network. This paper proposes AQUA-NET, an architecture for underwater sensor

Cui, Jun-Hong

283

HIPPOPOTAMUS UNDERWATER LOCOMOTION: REDUCED-GRAVITY MOVEMENTS FOR A MASSIVE MAMMAL  

E-Print Network (OSTI)

HIPPOPOTAMUS UNDERWATER LOCOMOTION: REDUCED- GRAVITY MOVEMENTS FOR A MASSIVE MAMMAL BRITTANY L on land by such heavy animals. Videos of the underwater locomotion of 2 hippopotami were analyzed frame by frame. Average horizontal velocity underwater was 0.47 m/s. Hippopotami used a gait underwater

Fish, Frank

284

Underwater localization based on multicarrier waveforms  

E-Print Network (OSTI)

Abstract—In this paper, we investigate the problem of localizing an underwater sensor node based on message broadcasting from multiple surface nodes. With the time-of-arrival measurements from a DSP-based multicarrier modem, each sensor node localizes itself based on the travel time differences among multiple senders to the receiver. Using one-way message passing, such a solution can scalably accommodate a large number of nodes in a network. We present simulation results as well as preliminary testing results in a swimming pool and in a local lake. Surface buoys with GPS sensors self-localization via acoustic links I.

Patrick Carroll; Shengli Zhou; Hao Zhou; Jun-hong Cui; Peter Willett

2010-01-01T23:59:59.000Z

285

Autonomic and trusted computing paradigms  

Science Conference Proceedings (OSTI)

The emerging autonomic computing technology has been hailed by world-wide researchers and professionals in academia and industry. Besides four key capabilities, well known as self-CHOP, we propose an additional self-regulating capability to explicitly ...

Xiaolin Li; Hui Kang; Patrick Harrington; Johnson Thomas

2006-09-01T23:59:59.000Z

286

Solar Power for Autonomous Floats  

Science Conference Proceedings (OSTI)

Advances in low-power instrumentation and communications now often make energy storage the limiting factor for long-term autonomous oceanographic measurements. Recent advances in photovoltaic cells, with efficiencies now close to 30%, make solar ...

Eric A. D’Asaro

2007-07-01T23:59:59.000Z

287

Underwater cladding with laser beam and plasma arc welding  

SciTech Connect

Two welding processes, plasma arc (transferred arc) (PTA) and laser beam, were investigated to apply cladding to austenitic stainless steels and Inconel 600. These processes have long been used to apply cladding layers , but the novel feature being reported here is that these cladding layers were applied underwater, with a water pressure equivalent to 24 m (80 ft). Being able to apply the cladding underwater is very important for many applications, including the construction of off-shore oil platforms and the repair of nuclear reactors. In the latter case, being able to weld underwater eliminates the need for draining the reactor and removing the fuel. Welding underwater in reactors presents numerous challenges, but the ability to weld without having to drain the reactor and remove the fuel provides a huge cost savings. Welding underwater in reactors must be done remotely, but because of the radioactive corrosion products and neutron activation of the steels, remote welding would also be required even if the reactor is drained and the fuel removed. In fact, without the shielding of the water, the remote welding required if the reactor is drained might be even more difficult than that required with underwater welds. Furthermore, as shall be shown, the underwater welds that the authors have made were of high quality and exhibit compressive rather than tensile residual stresses.

White, R.A.; Fusaro, R.; Jones, M.G.; Solomon, H.D. [General Electric Corporate Research and Development Center, Schenectady, NY (United States); Milian-Rodriguez, R.R. [GE Nuclear Energy, San Jose, CA (United States)

1997-01-01T23:59:59.000Z

288

CX-008454: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exclusion Determination Autonomous Underwater Inspection Using a Three Dimensional Laser CX(s) Applied: B3.6 Date: 06152012 Location(s): Colorado Offices(s): National Energy...

289

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Palm Beach, FL Autonomous Underwater Inspection Using 3D Laser Perform offshore testing of 3D laser over targets of opportunity including a sunken barge and various ship wrecks in...

290

CX-008455: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exclusion Determination Autonomous Underwater Inspection Using a Three Dimensional Laser CX(s) Applied: B3.6 Date: 06152012 Location(s): Colorado Offices(s): National Energy...

291

Piping inspection instrument carriage  

DOE Patents (OSTI)

This invention, an instrument carriage for inspection of piping, comprises front and rear leg assemblies for engaging the interior of the piping and supporting and centering the carriage therein, an instrumentation arm carried by a shaft system running from front to rear leg assemblies. The shaft system has a screw shaft for moving the arm axially and a spline gear for moving the arm azimuthally. The arm has a pair of air cylinders that raise and lower a plate in the radial direction. On the plate are probes including, an eddy current probe and an ultrasonic testing probe. The ultrasonic testing probe is capable of spinning 360[degrees] about its axis.

Hapstack, M.; Talarek, T.R.; Zollinger, W.T.; Heckendorn, F.M. II; Park, L.R.

1991-01-01T23:59:59.000Z

292

Piping inspection instrument carriage  

DOE Patents (OSTI)

This invention, an instrument carriage for inspection of piping, comprises front and rear leg assemblies for engaging the interior of the piping and supporting and centering the carriage therein, an instrumentation arm carried by a shaft system running from front to rear leg assemblies. The shaft system has a screw shaft for moving the arm axially and a spline gear for moving the arm azimuthally. The arm has a pair of air cylinders that raise and lower a plate in the radial direction. On the plate are probes including, an eddy current probe and an ultrasonic testing probe. The ultrasonic testing probe is capable of spinning 360{degrees} about its axis.

Hapstack, M.; Talarek, T.R.; Zollinger, W.T.; Heckendorn, F.M. II; Park, L.R.

1991-12-31T23:59:59.000Z

293

Inspection Technologies for Vegetation Management  

Science Conference Proceedings (OSTI)

Recent regulatory changes and budgetary pressures have prompted utilities to seek a more in-depth understanding of the terrain along their transmission line corridor rights-of-way (ROW) and the vegetation on that terrain. Vegetation inspections play an important role in acquiring this information and in avoiding costly vegetation-related outages. While the methods by which the inspections are conducted vary from utility to utility, some form of periodic inspections of transmission ROWs are ...

2012-12-14T23:59:59.000Z

294

Thermographic Inspections | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

being lost. Energy auditors may use thermography -- or infrared scanning -- to detect thermal defects and air leakage in building envelopes. How Thermographic Inspections Work...

295

BENCHMARKING EMERGING PIPELINE INSPECTION TECHNOLOGIES  

NLE Websites -- All DOE Office Websites (Extended Search)

FINAL REPORT Benchmarking Emerging Pipeline Inspection Technologies To Department of Energy National Energy Technology Laboratory (NETL) DE-AP26-04NT40361 and Department of...

296

Ultrasonic methods for rail inspection  

E-Print Network (OSTI)

Impedance Measurements in Rail Steel,” Materials Evaluation,Guided Wave System for Rail Inspection: An Update,” JournalWave-based Monitoring of Rail Head: Laboratory and Field

Phillips, Robert Ronald

2012-01-01T23:59:59.000Z

297

Inspection system performance test procedure  

SciTech Connect

This procedure establishes requirements to administer a performance demonstration test. The test is to demonstrate that the double-shell tank inspection system (DSTIS) supplied by the contractor performs in accordance with the WHC-S-4108, Double-Shell Tank Ultrasonic Inspection Performance Specification, Rev. 2-A, January, 1995. The inspection system is intended to provide ultrasonic (UT) and visual data to determine integrity of the Westinghouse Hanford Company (WHC) site underground waste tanks. The robotic inspection system consists of the following major sub-systems (modules) and components: Mobile control center; Deployment module; Cable management assembly; Robot mechanism; Ultrasonic testing system; Visual testing system; Pneumatic system; Electrical system; and Control system.

Jensen, C.E.

1995-01-17T23:59:59.000Z

298

Specs add confidence in use of wet welding. [Underwater welding  

SciTech Connect

Underwater wet welding can now be utilized with the same confidence as dry welding, provided certain guidelines are followed. A new electrode is discussed that has been delivering exceptionally high quality welds by a diving firm in Houston. With the issuance of the American Welding Society's specifications (ANS/LAWS D3.6-83) much of the confusion surrounding underwater welding should be eliminated. The new specifications establish the levels of quality for underwater welding and gives everyone in the business a common language.

1984-02-01T23:59:59.000Z

299

The Design of an Inspection Robot for Boiler Tubes Inspection  

Science Conference Proceedings (OSTI)

A climbing robot with magnetic wheels is designed for the inspection of boiler tubes in fossil power plants, which can inspect the boiler tubes automatically. The climbing robot will move on the boiler tubes. The magnetic wheels of the robot can be move ... Keywords: boiler tubes, climbing robot, magnetic flux leakage sensor, VSC controller

Lu Xueqin; Qiu Rongfu; Liu Gang; Huang Fuzhen

2009-11-01T23:59:59.000Z

300

Direct-form adaptive equalization for underwater acoustic communication  

E-Print Network (OSTI)

Adaptive equalization is an important aspect of communication systems in various environments. It is particularly important in underwater acoustic communication systems, as the channel has a long delay spread and is subject ...

Yellepeddi, Atulya

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Examining transmission power in minimum capacity underwater acoustic networks  

E-Print Network (OSTI)

This paper explores the prospect of reducing the transmission power required to operate links within an underwater acoustic network by minimizing the total capacity of the network while maintaining certain data flow ...

Stanchak, Kathryn E

2010-01-01T23:59:59.000Z

302

Underwater Radiance Distributions Measured with Miniaturized Multispectral Radiance Cameras  

Science Conference Proceedings (OSTI)

Miniaturized radiance cameras measuring underwater multispectral radiances in all directions at high-radiometric accuracy (CE600) are presented. The camera design is described, as well as the main steps of its optical and radiometric ...

David Antoine; André Morel; Edouard Leymarie; Amel Houyou; Bernard Gentili; Stéphane Victori; Jean-Pierre Buis; Nicolas Buis; Sylvain Meunier; Marius Canini; Didier Crozel; Bertrand Fougnie; Patrice Henry

2013-01-01T23:59:59.000Z

303

Gabor Transform Application in Feature Description of Underwater Echo Signal  

Science Conference Proceedings (OSTI)

For the nonstationarity of target echo signals acquired by laser underwater target detecting system and the relevance between target echo signal and noise, in virtue of texture analysis of image processing, Gabor transform is used to localize the target ...

Shubin Yang; Wanlong Cui; Huaxi Wang

2009-12-01T23:59:59.000Z

304

Information-theoretic limits of dense underwater networks  

E-Print Network (OSTI)

Information-theoretic throughput scaling laws are analyzed in an underwater acoustic network with n regularly located nodes on a unit square, in which both bandwidth and received signal power can be severely limited. A ...

Shin, Won-Yong

305

Reduced bandwidth frequency domain equalization for underwater acoustic communications  

E-Print Network (OSTI)

Two challenges facing adaptive decision feedback equalizers (DFEs) in the underwater acoustic channel are those of the channel changing too rapidly to allow for the stable adaptation of the number of coefficients required ...

Wornell, Gregory W.

306

Large area 3-D reconstructions from underwater optical surveys  

E-Print Network (OSTI)

Robotic underwater vehicles are regularly performing vast optical surveys of the ocean floor. Scientists value these surveys since optical images offer high levels of detail and are easily interpreted by humans. Unfortunately, ...

Singh, Hanumant

307

Listening to Raindrops from Underwater: An Acoustic Disdrometer  

Science Conference Proceedings (OSTI)

Different sized raindrops splashing on a water surface produce sound underwater that is distinctive and can be used to measure the drop size distribution in the rain. Five acoustically significant raindrop sizes are described. An inversion of the ...

Jeffrey A. Nystuen

2001-10-01T23:59:59.000Z

308

MAC and Routing Protocols for Mobile Underwater Acoustic Sensor Swarms.  

E-Print Network (OSTI)

??Underwater Acoustic Sensor Networks (UW-ASNs) have recently been proposed as a way to explore and observe the ocean, which covers two-thirds of the Earth's surface.… (more)

Noh, Young Tae

2012-01-01T23:59:59.000Z

309

Development of a snorkel for unmanned underwater vehicles  

E-Print Network (OSTI)

The development of unmanned underwater vehicles (UUV) has provided a bevy of opportunities for the exploration of the ocean. However, one limitation has kept UUVs from truly becoming mass produced, its limited range. The ...

Tia, Peter (Peter M.)

2012-01-01T23:59:59.000Z

310

Dispersive waves generated by an underwater landslide  

E-Print Network (OSTI)

In this work we study the generation of water waves by an underwater sliding mass. The wave dynamics are assumed to fell into the shallow water regime. However, the characteristic wavelength of the free surface motion is generally smaller than in geophysically generated tsunamis. Thus, dispersive effects need to be taken into account. In the present study the fluid layer is modeled by the Peregrine system modified appropriately and written in conservative variables. The landslide is assumed to be a quasi-deformable body of mass whose trajectory is completely determined by its barycenter motion. A differential equation modeling the landslide motion along a curvilinear bottom is obtained by projecting all the forces acting on the submerged body onto a local moving coordinate system. One of the main novelties of our approach consists in taking into account curvature effects of the sea bed.

Dutykh, Denys; Beysel, Sonya; Shokina, Nina; Khakimzyanov, Gayaz

2011-01-01T23:59:59.000Z

311

Spectroscopic research of underwater electrical wire explosion  

Science Conference Proceedings (OSTI)

Results of spectroscopic research in the visible range of light of the radiation generated by underwater electrical wire explosions (UEWE) are presented. A pulsed generator with an output voltage of {approx}110 kV, current of {approx}70 kA, and rise time of {approx}60 ns was used for electrical explosion of Cu wires 0.1 mm in diameter and 50 mm in length. It was shown that UEWE is not governed by the 'polarity' effect, which plays an important role in electrical wire explosions in vacuum. The results of detailed space- and time-resolved spectroscopic measurements show that the radiation spectrum differs significantly of the spectrum expected from the exploding wire. A model is suggested based on the formation of a few {mu}m 'water' plasma layer in the vicinity of the exploding wire plasma which efficiently absorbs the radiation of the exploding wire.

Fedotov, A.; Sheftman, D.; Gurovich, V. Tz.; Efimov, S.; Bazilitski, G.; Krasik, Ya. E. [Physics Department, Technion-Israel Institute of Technology, 32000 Haifa (Israel); Oreshkin, V. I. [Institute of High Current Electronics, RAS, Tomsk (Russian Federation)

2008-08-15T23:59:59.000Z

312

Research Challenges and Applications for Underwater Sensor Networking  

E-Print Network (OSTI)

This paper explores applications and challenges for underwater sensor networks. We highlight potential applications to off-shore oilfields for seismic monitoring, equipment monitoring, and underwater robotics. We identify research directions in shortrange acoustic communications, MAC, time synchronization, and localization protocols for high-latency acoustic networks, longduration network sleeping, and application-level data scheduling. We describe our preliminary design on short-range acoustic communication hardware, and summarize results of high-latency time synchronization.

John Heidemann; Wei Ye; Jack Wills; Affan Syed; Yuan Li

2006-01-01T23:59:59.000Z

313

2004 Annual Inspection for the  

Office of Legacy Management (LM)

for the for the Parkersburg, West Virginia, Nuclear Waste Policy Act Section 151(c) Disposal Site Summary The Parkersburg, West Virginia, Site was inspected on October 16, 2008, to confirm the integrity of visible features and to determine the need, if any, for maintenance, additional inspections, or monitoring. Results of the inspection conclude that the site is in excellent condition. Vegetation control activities (mow and spray) have been effective in reducing the populations of weed species present at the site. An area of poison hemlock re-growth and an area of poison ivy were identified during the inspection. Although the site is currently mowed twice a year, the grass was rather high at the time of the inspection. It is recommended that the frequency of

314

Ultrasonic inspection and deployment apparatus  

DOE Patents (OSTI)

An ultrasonic inspection apparatus for the inspection of metal structures, especially installed pipes. The apparatus combines a specimen inspection element, an acoustical velocity sensing element, and a surface profiling element, all in one scanning head. A scanning head bellows contains a volume of oil above the pipe surface, serving as acoustical couplant between the scanning head and the pipe. The scanning head is mounted on a scanning truck which is mobile around a circular track surrounding the pipe. The scanning truck has sufficient motors, gears, and position encoders to allow the scanning head six degrees of motion freedom. A computer system continually monitors acoustical velocity, and uses that parameter to process surface profiling and inspection data. The profiling data is used to automatically control scanning head position and alignment and to define a coordinate system used to identify and interpret inspection data. The apparatus is suitable for highly automated, remote application in hostile environments, particularly high temperature and radiation areas.

Michaels, Jennifer E. (Ithaca, NY); Michaels, Thomas E. (Ithaca, NY); Mech, Jr., Stephen J. (Pasco, WA)

1984-01-01T23:59:59.000Z

315

Radiographic Inspection of Fueled Clads  

SciTech Connect

Five general purpose heat source (GPHS) fueled clads were radiographically inspected at the Idaho National Laboratory (INL). The girth weld region of each clad had previously passed visual examination, ring gauge test, and leak test but showed “positive” indications on the ultrasonic (UT) test. Positive ultrasonic indications are allowable under certain weld conditions; radiographic inspection provides a secondary nonintrusive means of clad inspection and may confirm allowable anomalies from the UT inspection. All the positive UT indications were found to exhibit allowable weld shield fusion or mismatch conditions. No indication of void defects was found. One additional clad (FCO371) was deemed unacceptable for radiographic inspection due to an unknown black substance that obscured the angular origin on the weld so that the angular offset to the UT indication could not be found.

Timothy J. Roney; Karen M. Wendt

2005-04-01T23:59:59.000Z

316

Device for inspecting vessel surfaces  

DOE Patents (OSTI)

A portable, remotely-controlled inspection crawler for use along the walls of tanks, vessels, piping and the like. The crawler can be configured to use a vacuum chamber for supporting itself on the inspected surface by suction or a plurality of magnetic wheels for moving the crawler along the inspected surface. The crawler is adapted to be equipped with an ultrasonic probe for mapping the structural integrity or other characteristics of the surface being inspected. Navigation of the crawler is achieved by triangulation techniques between a signal transmitter on the crawler and a pair of microphones attached to a fixed, remote location, such as the crawler's deployment unit. The necessary communications are established between the crawler and computers external to the inspection environment for position control and storage and/or monitoring of data acquisition.

Appel, D. Keith (Aiken, SC)

1995-01-01T23:59:59.000Z

317

An Evaluation of Inspection Automation Tools  

Science Conference Proceedings (OSTI)

A key element in manufacturing quality software is the early detection of defects which can be fostered by inspection techniques. Inspections may be boosted by automated tools that help in various tasks during the whole inspection process. We present ...

Vesa Tenhunen; Jorma Sajaniemi

2002-06-01T23:59:59.000Z

318

Deaerator inspection and analysis  

Science Conference Proceedings (OSTI)

Inspection of 11 deaerator systems at the Savannah River Plant (SRP) was performed after at least 30 years of service. Each deaerator system consists of a heater vessel and a storage vessel. Of 22 total vessels, only 11 were found to contain cracks, and these were repaired. The cracks ranged up to one inch in length, were both transverse and parallel to the welds, and none were through-wall. Weld samples were removed for metallurgical investigation, which revealed a very localized corrosion mechanism with a tightly bound oxide within the cracks. The operation and water chemistry of these deaerators are reviewed because up to four of these units operate in the same powerhouse and experience the same operating conditions.

Vormelker, P.R.

1987-01-01T23:59:59.000Z

319

Three-Dimenisional Routing in Underwater Acoustic Sensor Networks  

E-Print Network (OSTI)

Underwater sensor networks will find applications in oceanographic data collection, pollution monitoring, offshore exploration, disaster prevention, assisted navigation, and tactical surveillance applications. In this paper, the problem of data gathering in a 3D underwater acoustic sensor network is investigated at the network layer, by considering the interactions between the routing functions and the characteristics of the underwater channel. Two routing algorithms are proposed for delay-insensitive and delay-sensitive sensor network applications, respectively. The proposed distributed algorithm for delay-insensitive applications allows each node to select its next hop, with the objective of minimizing the energy consumption taking into account the varying condition of the underwater channel. A centralized algorithm for delay-sensitive routing in an underwater environment is proposed. The solution relies on topology information gathered by a surface station, which optimally configures the network paths. The proposed algorithms are shown to achieve the performance targets of the underwater environment by means of simulation. Categories and Subject Descriptors:

Dario Pompili; Tommaso Melodia

2005-01-01T23:59:59.000Z

320

Inspection Report: IG-0384 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

84 Inspection Report: IG-0384 January 18, 1996 Inspection of Concerns Regarding the Martin Marietta Corporate Review of Health and Safety at Martin Marietta Energy Systems...

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Inspection Report: IG-0671 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Report: IG-0671 January 18, 2005 Concerns Regarding the Department of Energy's Counterintelligence Inspection Program (U) This inspection report is not publicly releasable...

322

Inspection Report: IG-0619 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

9 Inspection Report: IG-0619 September 16, 2003 The Security Afforded Selected Tritium Reservoir Shipments (U) The inspection report is classified and is available for review by...

323

Independent Oversight Inspection, Sandia National Laboratories...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Sandia National Laboratories, Volume 1 - May 2005 Independent Oversight Inspection, Sandia National Laboratories, Volume 1 - May 2005 May 2005 Inspection of Environment, Safety,...

324

Independent Oversight Inspection, Sandia National Laboratories...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

9 Independent Oversight Inspection, Sandia National Laboratories - May 2009 May 2009 Inspection of Emergency Management at the Sandia Site Office and Sandia National Laboratories...

325

Inspection Report: IG-0809 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

09 Inspection Report: IG-0809 January 2009 Pantex Laser Perimeter Awareness System This inspection report is not publicly releasable because it contains Unclassified Controlled...

326

Independent Oversight Inspection, Idaho National Laboratory ...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

June 2005 Independent Oversight Inspection, Idaho National Laboratory - June 2005 June 2005 Inspection of Environment, Safety, and Health Programs at the Idaho National Laboratory...

327

Request an Inspection of User Electrical Equipment  

NLE Websites -- All DOE Office Websites (Extended Search)

date, time, and location of the inspection Equipment list and description List any manualsdocumentationschematics that exist and are present to aid with the inspection. A...

328

Inspection Report: IG-0576 | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

covers the Extrusion Plant and not the Metals Plant. Inspection Report: IG-0576 More Documents & Publications Inspection Report: IG-0530 Audit Report: IG-0541 Audit Report: IG-0558...

329

Independent Oversight Inspection, Argonne National Laboratory...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Inspection, Argonne National Laboratory - East, Summary Report - May 2002 Independent Oversight Inspection, Argonne National Laboratory - East, Summary Report - May 2002 May 2002...

330

Inspection Report: IG-0578 | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

19, 2002 Inspection of Explosives Safety at Selected Department of Energy Sites The Office of Inspector General, U.S. Department of Energy (DOE), conducted an inspection at...

331

Inspection Report: IG-0656 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

6 Inspection Report: IG-0656 August 10, 2004 Internal Controls Over Personal Computers at Los Alamos National Laboratory The Office of Inspector General initiated an inspection to...

332

Autonomous Robotic Vehicle Road Following  

Science Conference Proceedings (OSTI)

A description is given of the system architecture of an autonomous vehicle and its real-time adaptive vision system for road-following. The vehicle is a 10-ton armored personnel carrier modified for robotic control. A color transformation that best discriminates ... Keywords: adaptive systems, adaptive vision system, armored personnel carrier, autonomous vehicle, color transformation, computer vision, computerised navigation, computerised pattern recognition, image coordinate system, image segmentation, maximum-likelihood pixel classification, military systems, real-time, road region boundary, road vehicles, road-following, robotic vehicle, robots

D. Kuan; G. Phipps; A.-C. Hsueh

1988-09-01T23:59:59.000Z

333

DOI: 10.1109/3DUI.2012.6184201 A new Device for Virtual or Augmented Underwater Diving  

E-Print Network (OSTI)

The objective of this work is to recreate the sensorial conditions of scuba diving in the most frequented public aquatic spaces – Beaches and Swimming pools. The version of the device included is autonomous, mobile and easily transportable by one person in a backpack. It can also be easily installed, equipped with GPS and wireless systems, and has positive buoyancy. Also, the possibility to integrate a component that may give a self-propelling capacity may be considered. In fact, by reducing the length of the anchoring cable, it will be possible to modify the depth of immersion. The device will be used at water surface as well as underwater using a tuba (- 40 cm). Moreover, the device is equipped with one (can be upgraded for more) video camera pointing downwards. In fact, Augmented Reality contents combining actual underwater images with 3D animated images will be one of the preferred ways to use the device. Priority will be given to technical options leading to a “green ” device, with renewable power consumption and built with recyclable materials.

Christophe Domingues; Samir Otmane; Alain Dinis

2012-01-01T23:59:59.000Z

334

Partially autonomous conceptual development of multifunctional structures  

Science Conference Proceedings (OSTI)

Partially autonomous conceptual development of Multifunctional Structures (MFSs) is achieved using an analogy with two mechanisms found in embryo development in biology: induction and gene transcription. The induction model is achieved autonomously ...

Yuemin Hou; Linhong Ji

2011-02-01T23:59:59.000Z

335

The EO-1 Autonomous Science Agent  

Science Conference Proceedings (OSTI)

An Autonomous Science Agent is currently flying onboard the Earth Observing One Spacecraft. This software enables the spacecraft to autonomously detect and respond to science events occurring on the Earth. The package includes software systems that perform ...

Steve Chien; Rob Sherwood; Daniel Tran; Benjamin Cichy; Gregg Rabideau; Rebecca Castano; Ashley Davies; Rachel Lee; Dan Mandl; Stuart Frye; Bruce Trout; Jerry Hengemihle; Jeff D'Agostino; Seth Shulman; Stephen Ungar; Thomas Brakke; Darrell Boyer; Jim Van Gaasbeck; Ronald Greeley; Thomas Doggett; Victor Baker; James Dohm; Felipe Ip

2004-07-01T23:59:59.000Z

336

Continuous observation planning for autonomous exploration  

E-Print Network (OSTI)

Many applications of autonomous robots depend on the robot being able to navigate in real world environments. In order to navigate or path plan, the robot often needs to consult a map of its surroundings. A truly autonomous ...

Hasegawa, Bradley R

2004-01-01T23:59:59.000Z

337

Results of the first two seasons of underwater surveys at Episkopi Bay and Akrotiri, Cyprus  

E-Print Network (OSTI)

During the summers of 2003 and 2004, a small team of graduate students initiated an underwater archaeological survey off the coast of Cyprus as part of the University of Cincinnati excavations at Episkopi-Bamboula. With the support of the Institute of Nautical Archaeology (INA) at Texas A&M University and RPM Nautical Foundation, the project explored the seabed south and west of the Akrotiri Peninsula at Episkopi Bay. The overall aim of this ongoing diachronic survey is to determine the extent and nature of maritime contacts at Episkopi-Bamboula and its Greco-Roman successor, Kourion, from the Bronze Age through the Byzantine period. Efforts during these first two seasons concentrated on simple visual inspection of several promising areas near dangerous cliffs, offshore rocks and shallow reefs, as well as potential harbors and anchorages. The team recorded substantial pottery and anchor assemblages at Dreamer?s Bay, Cape Zevgari, and Avdimou Bay, including at least three shipwreck sites. Throughout the area, amphoras and anchors attest to varying levels of maritime activity over the past three millennia.The underwater material record reveals a modest level of Classical trade, followed by a respectable increase during the Hellenistic era. While very little material thus far can be attributed to the earlier Imperial centuries, the greatest quantities in terms of both individual sherds and coherent assemblages speaks strongly to intense trade during the Late Roman (Early Byzantine) period, from the fourth through the seventh century. Not surprisingly, this rapid floruit in maritime trade parallels the expansion of settlement throughout the island, including its eventual collapse in the middle of the seventh century.

Leidwanger, Justin Ryan

2005-12-01T23:59:59.000Z

338

Data acquisition and analysis of the UNCOSS underwater explosive neutron sensor  

Science Conference Proceedings (OSTI)

The purpose of the FP7 UNCOSS project (Underwater Coastal Sea Surveyor, http://www.uncoss-project.org) is to develop a neutron-based underwater explosive sensor to detect unexploded ordnance lying on the sea bottom. The Associated Particle Technique is used to focus the inspection on a suspicious object located by optical and electromagnetic sensors and to determine if there is an explosive charge inside. This paper presents the data acquisition electronics and data analysis software which have been developed for this project. The electronics digitize and process the signal in real-time based on a field programmable gate array structure to perform precise time-of-flight and gamma-ray energy measurements. UNCOSS software offers the basic tools to analyze the time-of-flight and energy spectra of the interrogated object. It allows to unfold the gamma-ray spectrum into pure elemental count proportions, mainly C, N, O, Fe, Al, Si, and Ca. The C, N, and O count fractions are converted into chemical proportions by taking into account the gamma-ray production cross sections, as well as neutron and photon attenuation in the different shields between the ROV (Remotely Operated Vehicle) and the explosive, such as the explosive iron shell, seawater, and ROV envelop. These chemical ratios are plotted in a two-dimensional (2D) barycentric representation to position the measured point with respect to common explosives. The systematic uncertainty due to the above attenuation effects and counting statistical fluctuations are combined with a Monte Carlo method to provide a 3D uncertainty area in a barycentric plot, which allows to determine the most probable detected materials in view to make a decision about the presence of explosive. (authors)

Carasco, C.; Eleon, C.; Perot, B. [CEA, DEN, Cadarache, Nuclear Measurement Laboratory, F-13108 Saint-Paul-lez-Durance (France); Boudergui, K.; Kondrasovs, V.; Corre, G.; Normand, S.; Sannie, G.; Woo, R.; Bourbotte, J. M. [CEA, LIST, Saclay, F-91191 Gif-sur-Yvette (France)

2011-07-01T23:59:59.000Z

339

Potential formal models for autonomic computing applications  

Science Conference Proceedings (OSTI)

An analysis of the potential formalism, used in the hierarchical system theory is performed, addressing the autonomic computing system design. In that manner, self management of the overall autonomic system can be achieved by influencing the local resources ... Keywords: autonomic computing systems, control theory, hierarchical system theory, optimization

Todor Stoilov; Krasimira Stoilova

2010-06-01T23:59:59.000Z

340

Autonomous Participation in Cloud Services  

Science Conference Proceedings (OSTI)

A Cyber-Physical System (CPS) is a combination of multiple physical devices connected and organised by a central controlling infrastructure using a feedback-loop mechanism. In order to increase the autonomy of CPS they must be connected to rich cloud ... Keywords: autonomic computing, service science, cyber-physical systems

Josef Spillner; Christian Piechnick; Claas Wilke; Uwe Abmann; Alexander Schill

2012-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

OSDF Inspection Report  

Office of Legacy Management (LM)

29.1 12/12 29.1 12/12 On-Site Disposal Facility Inspection Report December 2012 6319D-6137 8929.2 12/12 East Face Cell 1 West Face Cell 1 6319D-6112 6319D-6135 8929.3 12/12 North Face Cell 1 North Drainage (looking west) 6319D-6110 6319D-6109 8929.4 12/12 East Face Cell 2 West Face Cell 2 6319D-6034 6319D-6113 8929.5 12/12 East Face Cell 3 West Face Cell 3 6319D-6133 6319D-6114 8929.6 12/12 East Face Cell 4 West Face Cell 4 6319D-6131 6319D-6116 8929.7 12/12 East Face Cell 5 West Face Cell 5 6319D-6130 6319D-6117 8929.8 12/12 East Face Cell 6 6319D-6118 6319D-6129 West Face Cell 6 8929.9 12/12 East Face Cell 7 6319D-6120 6319D-6127 West Face Cell 7 8929.10 12/12 East Face Cell 8 6319D-6121 6319D-6124 West Face Cell 8 8929.11 12/12

342

8744 - OSDF Inspection Report  

Office of Legacy Management (LM)

3.1 03/13 3.1 03/13 On-Site Disposal Facility Inspection Report March 2013 6319D-6168 8933.2 03/13 East Face Cell 1 West Face Cell 1 6319D-6149 6319D-6155 8933.3 03/13 North Face Cell 1 North Drainage (looking west) 6319D-6151 6319D-6152 8933.4 03/13 East Face Cell 2 West Face Cell 2 6319D-6056 6319D-6148 8933.5 03/13 East Face Cell 3 West Face Cell 3 6319D-6157 6319D-6147 8933.6 03/13 East Face Cell 4 West Face Cell 4 6319D-6158 6319D-6145 8933.7 03/13 East Face Cell 5 West Face Cell 5 6319D-6160 6319D-6144 8933.8 03/13 East Face Cell 6 6319D-6143 6319D-6161 West Face Cell 6 8933.9 03/13 East Face Cell 7 6319D-6141 6319D-6162 West Face Cell 7 8933.10 03/13 East Face Cell 8 6319D-6140 6319D-6164 West Face Cell 8 8933.11 03/13

343

Underwater Explosive Shock Consolidation of Nanocomposite Pr2Fe14B/-Fe Magnetic Powders  

E-Print Network (OSTI)

PR O O FS Underwater Explosive Shock Consolidation of Nanocomposite Pr2Fe14B/-Fe Magnetic Powders; Accepted January 6, 2005) Keywords: explosive compaction, underwater shock wave, nanocomposites, magnetic

Liu, J. Ping

344

Inspect and Repair Steam Traps  

SciTech Connect

This revised ITP tip sheet on inspecting and repairing steam traps provide how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

Not Available

2006-01-01T23:59:59.000Z

345

Proceedings: EPRI Second Phased Array Inspection Seminar  

SciTech Connect

The Second EPRI Phased Array Inspection Seminar focused on industrial applications of phased array technology that have been achieved to date or are planned for the near future. Presentations were made by developers of inspection techniques, inspection services vendors, and utility personnel who have performed inspections using arrays.

None

2001-11-01T23:59:59.000Z

346

Proceedings: EPRI Second Phased Array Inspection Seminar  

Science Conference Proceedings (OSTI)

The Second EPRI Phased Array Inspection Seminar focused on industrial applications of phased array technology that have been achieved to date or are planned for the near future. Presentations were made by developers of inspection techniques, inspection services vendors, and utility personnel who have performed inspections using arrays.

2001-11-28T23:59:59.000Z

347

Acoustic Inspection Devices: Detecting the Undetectable  

Acoustic Inspection Devices: Detecting the Undetectable Emerging homeland security threats and increasingly sophisticated adversaries have heightened ...

348

Audits & Inspections | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Audits & Inspections Audits & Inspections Audits & Inspections Audits & Inspections The Office of Audits and Inspections provides all internal and contracted audit activities, inspections, and reviews for Department programs and operations, including the National Nuclear Security Administration (NNSA) and the Federal Energy Regulatory Commission (FERC). The Office also performs all OIG intelligence oversight and reporting as required by Executive Order and statue. The Office works as an agent for positive change and continuous improvement in the Department's management and program operations; and strives to provide reliable, credible financial and performance information to senior Department management, the Congress and taxpayers. The Office of Audits and Inspections consists of a Headquarters

349

The DRL Underwater Sensor Network: Supporting Dual Communications, Sensing, and Mobility  

E-Print Network (OSTI)

The DRL Underwater Sensor Network: Supporting Dual Communications, Sensing, and Mobility Iuliu Vasilescu, Carrick Detweiler and Daniela Rus We propose to demonstrate the underwater sensor network are anchored with weights and form a static underwater network. This network self-localizes a range based 3D

Farritor, Shane

350

1756 IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 57, NO. 3, MAY 2008 Silent Positioning in Underwater  

E-Print Network (OSTI)

in Underwater Acoustic Sensor Networks Xiuzhen Cheng, Member, IEEE, Haining Shu, Student Member, IEEE, Qilian a silent positioning scheme termed UPS for underwater acoustic sensor networks. UPS relies on the time and provides location privacy at underwater vehicles/sensors whose locations need to be determined. To study

Cheng, Xiuzhen "Susan"

351

Long-term underwater camera surveillance for monitoring and analysis of fish populations  

E-Print Network (OSTI)

Long-term underwater camera surveillance for monitoring and analysis of fish populations Bastiaan J Laboratories, Taiwan Abstract Long-term monitoring of the underwater environ- ment is still labour intensive work. Using underwater surveillance cameras to monitor this environment has the potential advantage

Fisher, Bob

352

A Statistical Learning-Based Method for Color Correction of Underwater Images  

E-Print Network (OSTI)

A Statistical Learning-Based Method for Color Correction of Underwater Images Luz A. Torres the problem of color correction of un- derwater images using statistical priors. Underwater images present by using a non-parametric sampling procedure. Experimental results on a variety of underwater scenes

Dudek, Gregory

353

Stability Analysis of a New Extended L1 Controller with Experimental Validation on an Underwater Vehicle  

E-Print Network (OSTI)

Stability Analysis of a New Extended L1 Controller with Experimental Validation on an Underwater on an underwater vehicle subjected to a varying trajectory under several dis- turbances are then displayed. Moreover, experimental results are provided on an underwater vehicle in depth. The robot is expected

354

A New Discrete Transparent Boundary Condition for Standard and Wide Angle "Parabolic" Equations in Underwater Acoustics  

E-Print Network (OSTI)

in Underwater Acoustics ANTON ARNOLD1,2 AND MATTHIAS EHRHARDT1 1 Fachbereich Mathematik TU Berlin, MA 6­2 Stra�e in underwater acoustics, where they have been introduced by Tappert [31]. An account on the vast recent literature is given in the survey article [21]. In oceanography one wants to calculate the underwater

Ehrhardt, Matthias

355

Handling Triple Hidden Terminal Problems for Multi-Channel MAC in Long-Delay Underwater  

E-Print Network (OSTI)

1 Handling Triple Hidden Terminal Problems for Multi-Channel MAC in Long-Delay Underwater Sensor-channel MAC problem in underwater acoustic sensor networks. To reduce hardware cost, only one acoustic transceiver is often preferred on every node. In a single-transceiver multi- channel long-delay underwater

Cui, Jun-Hong

356

A Comparative Analysis and Experimental Study on Wireless Aerial and Underwater Acoustic  

E-Print Network (OSTI)

A Comparative Analysis and Experimental Study on Wireless Aerial and Underwater Acoustic underwater acoustic sensor networks through the use of audio hardware built in to the sensor modules. In this paper, we explore the potential of the acoustic communication system for both aerial and underwater

Lopes, Cristina Videira

357

Underwater temporary threshold shift in pinnipeds: Effects of noise level and duration  

E-Print Network (OSTI)

Underwater temporary threshold shift in pinnipeds: Effects of noise level and duration David Kastak psychophysical techniques were used to evaluate the residual effects of underwater noise on the hearing , amplified Realis- tic MPA-20 , and projected from one of two underwater transducers NUWC J-9 or Lubell

Reichmuth, Colleen

358

Time-critical Underwater Sensor Diffusion with No Proactive Exchanges and Negligible Reactive Floods  

E-Print Network (OSTI)

Time-critical Underwater Sensor Diffusion with No Proactive Exchanges and Negligible Reactive multi-hop ad hoc routing in a scalable Underwater Sensor Network (UWSN), which is a novel network in the challenging new underwater environment. Unlike the terrestrial scenarios, on-demand flooding cannot be both

Park, Joon-Sang

359

Tier-Based Underwater Acoustic Routing for Applications with Reliability and Delay Constraints  

E-Print Network (OSTI)

Tier-Based Underwater Acoustic Routing for Applications with Reliability and Delay Constraints Li for underwater sensor networks is still an open research problem because of the unique charac- teristics of the underwater acoustic communication channel such as limited bandwidth, high and variable propagation delays

Melodia, Tommaso

360

PARTICLE FILTERING AND CRAM ER-RAO LOWER BOUND FOR UNDERWATER NAVIGATION  

E-Print Network (OSTI)

PARTICLE FILTERING AND CRAM ´ER-RAO LOWER BOUND FOR UNDERWATER NAVIGATION Rickard Karlsson, Fredrik-mail: {rickard,fredrik}@isy.liu.se Tobias Karlsson Saab Bofors Underwater Systems Box 910 SE-591 29 Motala relying on a dig- ital underwater terrain map and sonar measurements. The method is applicable for both

Gustafsson, Fredrik

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Athanassis Anastasiou MRes Project: A Robust Acoustic Link for Underwater Data  

E-Print Network (OSTI)

Athanassis Anastasiou MRes Project: A Robust Acoustic Link for Underwater Data Communications The work carried out in this project contains extensive modelling of various underwater communications an appropriate Forward Error Control coding method according to the quality of the underwater channel it operates

Abu-Rgheff, Mosa Ali

362

Hydrobiologia vol. 65, I, pag. 65-68, 1979 A SIZE SELECTIVE UNDERWATER LIGHT TRAP  

E-Print Network (OSTI)

Hydrobiologia vol. 65, I, pag. 65-68, 1979 A SIZE SELECTIVE UNDERWATER LIGHT TRAP R. B. AIKEN underwater light trap isdescribed. Trap records indicate that the trap iseffective in taking a wide variety. (1955) described the construction and operation of an underwater light trap. Their records indi- cate

Aiken, Ron

363

Underwater temporary threshold shift induced by octave-band noise in three species of pinniped  

E-Print Network (OSTI)

Underwater temporary threshold shift induced by octave-band noise in three species of pinniped at center frequency . Each subject was trained to dive into a noise field and remain stationed underwater airborne. When human divers were tested underwater, for instance, the resultant levels of TTS were much

Reichmuth, Colleen

364

IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 58, NO. 8, AUGUST 2010 4093 Localization in Underwater Dispersive  

E-Print Network (OSTI)

IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 58, NO. 8, AUGUST 2010 4093 Localization in Underwater applications of time-frequency representations deal with the analysis of the underwater acoustic signals nonlinear effect at very low frequencies. That is, if we intend to establish an underwater communication

Paris-Sud XI, Université de

365

In-air and underwater hearing sensitivity of a northern elephant seal (Mirounga angustirostris)  

E-Print Network (OSTI)

In-air and underwater hearing sensitivity of a northern elephant seal (Mirounga angustirostris) D. Kastak and R.J. Schusterman Abstract: In-air and underwater sound detection thresholds were obtainedPa). The upper frequency limit in air was approximately 20 kHz. The underwater audiogram is similar to those

Reichmuth, Colleen

366

Underwater Networking Research at USC/ISI John Heidemann Wei Ye Jack Wills  

E-Print Network (OSTI)

Underwater Networking Research at USC/ISI John Heidemann Wei Ye Jack Wills {johnh. By comparison, underwater sensing today is often expensive, sparsely deployed, and wired, or with very limited of terrestrial sensor networks underwater. To this end we are developing new approaches for hardware, with a new

Heidemann, John

367

Underwater Bomb Trajectory Prediction for Stand-off Assault (Mine/IED) Breaching Weapon  

E-Print Network (OSTI)

Underwater Bomb Trajectory Prediction for Stand-off Assault (Mine/IED) Breaching Weapon Fuse to determine accurately underwater (full-size) bomb trajectory path so that the final detonation position of a six degrees of freedom (6-DOF) model to predict underwater high-speed bomb trajectory and orientation

Chu, Peter C.

368

Underwater microscope for measuring spatial and temporal changes in bed-sediment grain size  

E-Print Network (OSTI)

Underwater microscope for measuring spatial and temporal changes in bed-sediment grain size David M by Elsevier B.V. Keywords: Underwater microscope; Bed sediment; Grain size; In situ measurement; Colorado counts on a small subset of processed images. 2.3. Underwater microscope hardware Digital images of bed

369

MAPPING OUR UNDERWATER MARINE RESOURCES The MapCoast and BayMap Partnerships  

E-Print Network (OSTI)

MAPPING OUR UNDERWATER MARINE RESOURCES The MapCoast and BayMap Partnerships BAYMAP: CHARTING communities and underwater archaeological sites in a readily accessible GIS format. An interdisciplinary team underwater resources, including bathymetry, habitat, geology, soils/ sediment, and archeological resources

Wang, Y.Q. "Yeqiao"

370

Towards Optimal Broadcasting Policies for HARQ based on Fountain Codes in Underwater Networks  

E-Print Network (OSTI)

Towards Optimal Broadcasting Policies for HARQ based on Fountain Codes in Underwater Networks Paolo technique for the transmission over underwater channels as their performance, in terms of delay, reliability on the topic and encourages us towards the design of practical HARQ protocols for the underwater medium. Index

Rossi, Michele

371

HydroNode: an underwater sensor node prototype for monitoring hydroelectric reservoirs  

Science Conference Proceedings (OSTI)

The research of underwater sensor networks (UWSNs) is gaining attention due to its possible applications in many scenarios, such as ecosystem preservation, disaster prevention, oil and gas exploration and freshwater reservoirs management. The main elements ... Keywords: hydroelectric, monitoring, reservoirs, underwater sensor networks, underwater sensor node

Luiz F. M. Vieira; Marcos A. M. Vieira; David Pinto; José Augusto M. Nacif; Sadraque S. Viana; Alex B. Vieira

2012-11-01T23:59:59.000Z

372

Effect of inelastic scattering on underwater daylight in the ocean: model evaluation,  

E-Print Network (OSTI)

optical processes affecting underwater daylight are mathematically described by the radiativeEffect of inelastic scattering on underwater daylight in the ocean: model evaluation, validation capable of simulating underwater daylight in the ocean is presented. The main focus is on gelbstoff

Oldenburg, Carl von Ossietzky Universität

373

Digital RAC with a disturbance observer for underwater vehicle-manipulator systems  

Science Conference Proceedings (OSTI)

Most control methods of underwater vehiclemanipulator systems (UVMS) are based on the computed torque method that is used for underwater robotic vehicles. We have proposed a resolved acceleration control (RAC) method for UVMS. In this article, we propose ... Keywords: Digital control, Disturbance observer, Manipulator, Underwater robot

Shinichi Sagara; Takashi Yatoh; Tomoaki Shimozawa

2010-12-01T23:59:59.000Z

374

A study of defects on EUV mask using blank inspection, patterned mask inspection, and wafer inspection  

SciTech Connect

The availability of defect-free masks remains one of the key challenges for inserting extreme ultraviolet lithography (EUVL) into high volume manufacturing. yet link data is available for understanding native defects on real masks. In this paper, a full-field EUV mask is fabricated to investigate the printability of various defects on the mask. The printability of defects and identification of their source from mask fabrication to handling were studied using wafer inspection. The printable blank defect density excluding particles and patterns is 0.63 cm{sup 2}. Mask inspection is shown to have better sensitivity than wafer inspection. The sensitivity of wafer inspection must be improved using through-focus analysis and a different wafer stack.

Huh, S.; Ren, L.; Chan, D.; Wurm, S.; Goldberg, K. A.; Mochi, I.; Nakajima, T.; Kishimoto, M.; Ahn, B.; Kang, I.; Park, J.-O.; Cho, K.; Han, S.-I.; Laursen, T.

2010-03-12T23:59:59.000Z

375

MHK Technologies/Underwater Electric Kite Turbines | Open Energy  

Open Energy Info (EERE)

Underwater Electric Kite Turbines Underwater Electric Kite Turbines < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Underwater Electric Kite Turbines.jpg Technology Profile Primary Organization UEK Corporation Project(s) where this technology is utilized *MHK Projects/Atchafalaya River Hydrokinetic Project II *MHK Projects/Chitokoloki Project *MHK Projects/Coal Creek Project *MHK Projects/Half Moon Cove Tidal Project *MHK Projects/Indian River Tidal Hydrokinetic Energy Project *MHK Projects/Luangwa Zambia Project *MHK Projects/Minas Basin Bay of Fundy Commercial Scale Demonstration *MHK Projects/Passamaquoddy Tribe Hydrokinetic Project *MHK Projects/Piscataqua Tidal Hydrokinetic Energy Project *MHK Projects/UEK Yukon River Project Technology Resource

376

A broadband underwater acoustic modem implementation using coherent OFDM  

E-Print Network (OSTI)

Abstract — Multicarrier modulation in the form of orthogonal frequency division multiplexing (OFDM) has prevailed in recent broadband wireless systems over radio channels. In this senior design project, we have implemented an acoustic OFDM modem that transmits digital data through sound propagation. We have demonstrated OFDM transmission first in air, and then in water. We find that the underwater channel is much more complex than the air channel, and careful signal designs are needed for underwater transmissions. We have also handled another difficulty incurred by sampling rate mismatches at the transmitter and the receiver due to low-cost sampling devices. With two-way communication capabilities, this project provides a simple online chatting tool between two computers relying on acoustic links. Index Terms — OFDM, multicarrier transmission, underwater acoustic communication.

Sean Mason; Robert Anstett; Nicoletti Anicette; Shengli Zhou

2007-01-01T23:59:59.000Z

377

Autonomous, agile micro-satellites and supporting technologies  

DOE Green Energy (OSTI)

This paper updates the on-going effort at Lawrence Livermore National Laboratory to develop autonomous, agile micro-satellites (MicroSats). The objective of this development effort is to develop MicroSats weighing only a few tens of kilograms, that are able to autonomously perform precision maneuvers and can be used telerobotically in a variety of mission modes. The required capabilities include satellite rendezvous, inspection, proximity-operations, docking, and servicing. The MicroSat carries an integrated proximity-operations sensor-suite incorporating advanced avionics. A new self-pressurizing propulsion system utilizing a miniaturized pump and non-toxic mono-propellant hydrogen peroxide was successfully tested. This system can provide a nominal 25 kg MicroSat with 200-300 m/s delta-v including a warm-gas attitude control system. The avionics is based on the latest PowerPC processor using a CompactPCI bus architecture, which is modular, high-performance and processor-independent. This leverages commercial-off-the-shelf (COTS) technologies and minimizes the effects of future changes in processors. The MicroSat software development environment uses the Vx-Works real-time operating system (RTOS) that provides a rapid development environment for integration of new software modules, allowing early integration and test. We will summarize results of recent integrated ground flight testing of our latest non-toxic pumped propulsion MicroSat testbed vehicle operated on our unique dynamic air-rail.

Breitfeller, E; Dittman, M D; Gaughan, R J; Jones, M S; Kordas, J F; Ledebuhr, A G; Ng, L C; Whitehead, J C; Wilson, B

1999-07-19T23:59:59.000Z

378

Performance analysis of Non Linear Filtering Algorithms for underwater images  

E-Print Network (OSTI)

Image filtering algorithms are applied on images to remove the different types of noise that are either present in the image during capturing or injected in to the image during transmission. Underwater images when captured usually have Gaussian noise, speckle noise and salt and pepper noise. In this work, five different image filtering algorithms are compared for the three different noise types. The performances of the filters are compared using the Peak Signal to Noise Ratio (PSNR) and Mean Square Error (MSE). The modified spatial median filter gives desirable results in terms of the above two parameters for the three different noise. Forty underwater images are taken for study.

Padmavathi, Dr G; Kumar, Mr M Muthu; Thakur, Suresh Kumar

2009-01-01T23:59:59.000Z

379

Independent Oversight Inspection, Argonne National Laboratory - East,  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Independent Oversight Inspection, Argonne National Laboratory - Independent Oversight Inspection, Argonne National Laboratory - East, Summary Report - May 2002 Independent Oversight Inspection, Argonne National Laboratory - East, Summary Report - May 2002 May 2002 Inspection of Environment, Safety, and Health and Emergency Management at the Argonne National Laboratory - East The Secretary of Energy's Office of Independent Oversight and Performance Assurance (OA) conducted an inspection of environment, safety, and health (ES&H) programs and emergency management programs at the Department of Energy's (DOE) Argonne National Laboratory (ANL) in April and May 2002. The inspection was performed as a joint effort by the OA Office of Environment, Safety and Health Evaluations and the Office of Emergency Management Oversight.

380

Inspection Report: IG-0660 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

60 60 Inspection Report: IG-0660 August 30, 2004 Inspection Report on "Internal Controls Over the Accountability of Computers at Sandia National Laboratory, New Mexico The Office of Inspector General initiated an inspection to determine the adequacy of internal controls over the extensive inventory of laptop and desktop computers at Sandia National Laboratory, New Mexico. Computers are used in the full range of operations at Sandia, to include processing classified information. Department of Energy (DOE) and Sandia property policies identify computers as "sensitive property," due largely to their susceptibility to theft and misappropriation. Inspection Report: IG-0660 More Documents & Publications Inspection Report: IG-0597 Inspection Report: IG-0455

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Inspection Report: IG-0530 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

0 0 Inspection Report: IG-0530 November 9, 2001 Inspection of the Management of Personal Property at the Ashtabula Environmental Management Project The Office of Inspector General (OIG), U.S. Department of Energy, conducted an inspection to review the management of accountable Government-owned personal property at the Department's Ashtabula Environmental Management Project (Ashtabula) in Ashtabula, Ohio. Earthline Technologies (Earthline), formerly RMI Environmental Services, is the Department's environmental restoration contractor at Ashtabula. Earthline is a division of RMI Titanium Company headquartered in Niles, Ohio. Inspection Report: IG-0530 More Documents & Publications Audit Report: IG-0541 Inspection Report: INS-L-01-05 Inspection Report: IG-0576

382

Independent Oversight Inspection, Lawrence Livermore National Laboratory -  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Inspection, Lawrence Livermore National Inspection, Lawrence Livermore National Laboratory - May 2007 Independent Oversight Inspection, Lawrence Livermore National Laboratory - May 2007 May 2007 Inspection of Environment, Safety, and Health Programs at the Lawrence Livermore National Laboratory The U.S. Department of Energy (DOE) Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), conducted an inspection of environment, safety, and health (ES&H) programs at the DOE Lawrence Livermore National Laboratory (LLNL) during January and February 2007. The inspection was performed by Independent Oversight's Office of Environment, Safety and Health Evaluations. LSO's oversight has matured, and operational awareness and assessments have improved in gathering data and identifying deficiencies. LSO

383

Autonomous detection, navigation, and propulsion for satellites.  

E-Print Network (OSTI)

??With the increasing number of satellites and space debris in all orbits the need for individual satellites to be able to autonomously detect and determine… (more)

Badger, Stanley

2009-01-01T23:59:59.000Z

384

Autonomous Directional Solidification (ADS), A Novel Casting ...  

Science Conference Proceedings (OSTI)

the enormous production costs, alternative processes attract special interest. At the Foundry-Institute of the Technical University of. Aachen, the Autonomous ...

385

ARM - Publications: Science Team Meeting Documents: Autonomous...  

NLE Websites -- All DOE Office Websites (Extended Search)

Autonomous Retrieval of Cloud and Aerosol Properties from ARM Micropulse Lidar Flynn, Connor Pacific Northwest National Laboratory Christy, Jason Columbia University Beus, Sherman...

386

An overview of the internet of underwater things  

Science Conference Proceedings (OSTI)

Approximately 71% of the Earth's surface is covered by ocean, a continuous body of water that is customarily divided into several principal oceans and smaller seas. Ocean temperatures determine climate and wind patterns that affect life on land. Freshwater ... Keywords: Applications, Architecture, Internet of underwater things, Research challenges

Mari Carmen Domingo

2012-11-01T23:59:59.000Z

387

Automatic fish classification for underwater species behavior understanding  

Science Conference Proceedings (OSTI)

The aim of this work is to propose an automatic fish classification system that operates in the natural underwater environment to assist marine biologists in understanding subehavior. Fish classification is performed by combining two types of features: ... Keywords: fish species description and classification

Concetto Spampinato; Daniela Giordano; Roberto Di Salvo; Yun-Heh Jessica Chen-Burger; Robert Bob Fisher; Gayathri Nadarajan

2010-10-01T23:59:59.000Z

388

Color-accurate underwater imaging using perceptual adaptive illumination  

Science Conference Proceedings (OSTI)

Capturing color in water is challenging due to the heavy non-uniform attenuation of light in water across the visible spectrum, which results in dramatic hue shifts toward blue. Yet observing color in water is important for monitoring and surveillance ... Keywords: Accurate colors, Adaptive illumination, Color rendering index, Underwater imaging

Iuliu Vasilescu; Carrick Detweiler; Daniela Rus

2011-10-01T23:59:59.000Z

389

Wormhole-Resilient Secure Neighbor Discovery in Underwater Acoustic Networks  

E-Print Network (OSTI)

is vulnerable to the wormhole attack by which the adversary uses secret wormhole links to make distant nodes, undersea explorations, disaster preven- tion, tactical surveillance, underwater warfare, and so on [3, essentially an out-of-band and low-latency channel, between two distant network locations. They then tunnel

Zhang, Rui

390

Underwater wireless sensor networks: routing issues and future challenges  

Science Conference Proceedings (OSTI)

With the advancements of acoustic modem technology that supports better data rates with reliable communications, current research focuses on algorithms those can support such technology in a better way. During the last two decades, many protocols suggested ... Keywords: acoustic communicaitons, intermettent networks, routing protocols, underwater sensor networks

Muhammad Ayaz; Azween Abdullah

2009-12-01T23:59:59.000Z

391

TECHNOLOGY DEMONSTRATION UNDERWATER HYDROLASING PHASE 0 & 1 & 2 TECHNICAL REPORT  

Science Conference Proceedings (OSTI)

From September 10 through December 17th, 2003, S.A.Robotics executed Phases 0, I, and II of the Technology Demonstration - Underwater Hydrolasing. Phase 0 was performed at the S.A.Robotics facility in Loveland, Colorado, while Phases I and II were performed at the Hanford K-Basin East Site. The purpose of the demonstrations was to show (1) underwater hydrolasing is a feasible method of removing contaminated concrete underwater to a required depth, (2) the hydrolasing head could be controlled during operation, (3) the depth of contamination in the concrete structure could be accurately measured, and (4) a characterization of the waste stream during hydrolasing activities could be recorded. Video monitoring was also used during all demonstrations. All phases of the demonstration were completed and deemed a success by both the observers and the demonstration team. Single and multiple passes were made using variable cutting rates, different stand-off distances were tested, and stationary cuts were executed. Hot and cold hyrdolasing was performed with radiological and depth scans of the affected surfaces. Specially designed equipment was installed and operated within the contaminated environment of 100-K East Basin. Separate results are documented below by phase. The Phase II radiological demonstration was performed to determine the feasibility of underwater hydrolasing technology for decontamination of the DOE spent fuel basins at Hanford 100-K area. This project demonstration was conducted at 105 KE Basin with the expectation that, once proven, this technology can be implemented at Hanford and other DOE sites.

CHRONISTER, G.B.

2005-06-08T23:59:59.000Z

392

Ultrasonic Guided Wave Inspection of Tubing: Volume 2: Theoretical Basis for Ultrasonic Guided Waves as a Tube Inspection Tool  

Science Conference Proceedings (OSTI)

By reducing inspection time and providing the sensitivity necessary to ensure a reliable inspection, ultrasonic guided wave technology has the potential to reduce steam generator inspection costs considerably.

1997-07-17T23:59:59.000Z

393

BUILDING INSPECTION Building, Infrastructure, Transportation  

E-Print Network (OSTI)

BUILDING INSPECTION Building, Infrastructure, Transportation City of Redwood City 1017 Middlefield Sacramento, Ca 95814-5514 Re: Green Building Ordinance and the Building Energy Efficiency Standards Per of Redwood City enforce the current Title 24 Building Energy Efficiency Standards as part

394

Robotic Welding and Inspection System  

SciTech Connect

This paper presents a robotic system for GTA welding of lids on cylindrical vessels. The system consists of an articulated robot arm, a rotating positioner, end effectors for welding, grinding, ultrasonic and eddy current inspection. Features include weld viewing cameras, modular software, and text-based procedural files for process and motion trajectories.

H. B. Smartt; D. P. Pace; E. D. Larsen; T. R. McJunkin; C. I. Nichol; D. E. Clark; K. L. Skinner; M. L. Clark; T. G. Kaser; C. R. Tolle

2008-06-01T23:59:59.000Z

395

Industrial Use of Infrared Inspections  

E-Print Network (OSTI)

Infrared is and has been an established technology in the military and aerospace fields. However, only relatively recently has this technology found a "use" in the industrial sector. Many reasons exist why the technology has not been used, but in the final analysis it comes down to the fact that the industrial management responsible for the operations and production budgets did not, and in many cases, still does not understand the economic benefits to the company that infrared industrial inspections can bring about. Over the last 2-3 years a number of articles have appeared in various industrial publications concerning infrared surveys. However, all of the articles have dealt with the technical aspects of infrared inspections, with the economics either completely neglected or mentioned only in passing. I believe that in the real industrial world it is the economic benefits of a technology that allow the product of that technology to reach the market and become a success, and not the fact that a technology is useful per se. In this presentation, I shall be focusing primarily on the major economic aspects of the surveys and what the end results really represent in terms of economic benefits. Once the economic benefits of these inspections are clearly understood, it will be readily apparent why the industrial use of these inspections is developing rapidly.

Duch, A. A.

1979-01-01T23:59:59.000Z

396

Piping inspection carriage having axially displaceable sensor  

DOE Patents (OSTI)

A pipe inspection instrument carriage is described for use with a pipe crawler for performing internal inspections of piping surfaces. The carriage has a front leg assembly, a rear leg assembly and a central support connecting the two assemblies and for mounting an instrument arm having inspection instruments. The instrument arm has a Y-arm mounted distally thereon for axially aligning the inspection instrumentation and a mounting block, a linear actuator and axial movement arm for extending the inspection instruments radially outward to operably position the inspection instruments on the piping interior. Also, the carriage has a rotation motor and gear assembly for rotating the central support and the front leg assembly with respect to the rear leg assembly so that the inspection instruments azimuthally scan the piping interior. The instrument carriage allows performance of all piping inspection operations with a minimum of moving parts, thus decreasing the likelihood of performance failure. 4 figures.

Zollinger, W.T.; Treanor, R.C.

1994-12-06T23:59:59.000Z

397

On-Site Disposal Facility Inspection Report  

Office of Legacy Management (LM)

3122013 March 2013 Site Inspection 40 1638 A6B No Large areas of teasel 3122013 March 2013 Site Inspection 52 Herbicide applied August-13 1639 Cell 8, south toe No Rock 312...

398

Inspection of the objects on the sea floor by using 14 MeV tagged neutrons  

SciTech Connect

Variety of objects found on the sea floor needs to be inspected for the presence of materials which represent the threat to the environment and to the safety of humans. We have demonstrated that the sealed tube 14 MeV neutron generator with the detection of associated alpha particles can be used underwater when mounted inside ROV equipped with the hydraulic legs and variety of sensors for the inspection of such objects for the presence of threat materials. Such a system is performing the measurement by using the NaI gamma detector and an API-120 neutron generator which could be rotated in order to maximize the inspected target volume. The neutron beam intensity during the 10-30 min. measurements is usually 1 x 10{sup 7} n/s in 4{pi}. In this report the experimental results for some of commonly found objects containing TNT explosive or its simulant are presented. The measured gamma spectra are dominant by C, O and Fe peaks enabling the determination of the presence of explosives inside the ammunition shell. Parameters influencing the C/O ratio are discussed in some details. (authors)

Valkovic, V. [A.C.T.d.o.o., Prilesje 4, Zagreb (Croatia); Sudac, D.; Obhodas, J. [Dept. of Experimental Physics, Inst. Ruder Boskovic, Zagreb (Croatia); Matika, D. [Inst. for Researches and Development of Defense Systems, Zagreb (Croatia); Kollar, R. [A.C.T.d.o.o., Prilesje 4, Zagreb (Croatia); Nad, K.; Orlic, Z. [Dept. of Experimental Physics, Inst. Ruder Boskovic, Zagreb (Croatia)

2011-07-01T23:59:59.000Z

399

In-Situ Characterization of Underwater Radioactive Sludge  

Science Conference Proceedings (OSTI)

A fundamental requirement underpinning safe clean-up technologies for legacy spent nuclear fuel (SNF) ponds, pools and wet silos is the ability to characterize the radioactive waste form prior to retrieval. The corrosion products resulting from the long term underwater storage of spent nuclear fuel, reactor components and reprocessing debris present a major hazard to facility decontamination and decommissioning in terms of their radioactive content and physical / chemical reactivity. The ability to perform in-situ underwater non-destructive characterization of sludge and debris in a safe and cost-effective manner offers significant benefits over traditional destructive sampling methods. Several techniques are available for underwater measurements including (i) Gross gamma counting, (ii) Low-, Medium- and High- Resolution Gamma Spectroscopy, (iii) Passive neutron counting and (iv) Active Neutron Interrogation. The optimum technique depends on (i) the radioactive inventory (ii) mechanical access restrictions for deployment of the detection equipment, interrogation sources etc. (iii) the integrity of plant records and (iv) the extent to which Acceptable Knowledge which may be used for 'fingerprinting' the radioactive contents to a marker nuclide. Prior deployments of underwater SNF characterization equipment around the world have been reviewed with respect to recent developments in gamma and neutron detection technologies, digital electronics advancements, data transfer techniques, remote operation capabilities and improved field ruggedization. Modeling and experimental work has been performed to determine the capabilities, performance envelope and operational limitations of the future generation of non-destructive underwater sludge characterization techniques. Recommendations are given on the optimal design of systems and procedures to provide an acceptable level of confidence in the characterization of residual sludge content of legacy wet storage facilities such that retrieval and repackaging of SNF sludges may proceed safely and efficiently with support of the regulators and the public. (author)

Simpson, A.P.; Clapham, M.J.; Swinson, B. [Pajarito Scientific Corp., Santa Fe, NM (United States)

2008-07-01T23:59:59.000Z

400

Inspection Report Follow-up Inspection on Security Clearance Terminations and Badge  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Inspection Report Inspection Report Follow-up Inspection on Security Clearance Terminations and Badge Retrieval at the Lawrence Livermore National Laboratory INS-L-12-02 March 2012 U.S. Department of Energy Office of Inspector General Office of Audits and Inspections Department of Energy Washington, DC 20585 March 6, 2012 MEMORANDUM FOR THE ASSOCIATE ADMINISTRATOR FOR DEFENSE NUCLEAR SECURITY MANAGER, LIVERMORE SITE OFFICE FROM: Sandra D. Bruce Assistant Inspector General for Inspections Office of Inspector General SUBJECT: INFORMATION: Inspection Report on "Follow-up Inspection on Security Clearance Terminations and Badge Retrieval at the Lawrence Livermore National Laboratory" BACKGROUND The Department of Energy's Lawrence Livermore National Laboratory (Livermore) is managed

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Current Plans for the ARA Autonomous  

E-Print Network (OSTI)

Current Plans for the ARA Autonomous Renewable Power (AARP) Station 27 May, 2010 Current Plans for the ARA Autonomous Renewable Power (AARP) Station 27 May, 2010 Participants: Ken Ratzlaff, Andrew;Turbine Aerogen 6 (UK) Ampair 600 (UK) (US --Norman, OK) (Canada ­ Sask) (South Africa) (Spain) (China

Peterson, Blake R.

402

Applying autonomous control in apparel manufacturing  

Science Conference Proceedings (OSTI)

Problems caused by manual handling of garments in the apparel industry can be improved by automated data management based on radio frequency identification technology. Autonomous control can be established on top to increase the system robustness and ... Keywords: apparel industry, autonomous control, production planning and control, smart labels, system architecture

Scholz-Reiter Bernd; Teucke Michael; Sowade Steffen; Rippel Daniel; Özsahin Mehmet-Emin; Hildebrandt Torsten

2009-05-01T23:59:59.000Z

403

An autonomic routing framework for sensor networks  

Science Conference Proceedings (OSTI)

Current routing services for sensor networks are often designed for specific applications and network conditions, thus have difficulty in adapting to application and network dynamics. This paper proposes an autonomic framework to promote the adaptivity ... Keywords: Autonomic routing, Feature functions, Monitoring policies, Sensor networks

Yu He; Cauligi S. Raghavendra; Steven Berson; Robert Braden

2006-04-01T23:59:59.000Z

404

Autonomous Control of Space Reactor Systems  

SciTech Connect

Autonomous and semi-autonomous control is a key element of space reactor design in order to meet the mission requirements of safety, reliability, survivability, and life expectancy. Interrestrial nuclear power plants, human operators are avilable to perform intelligent control functions that are necessary for both normal and abnormal operational conditions.

Belle R. Upadhyaya; K. Zhao; S.R.P. Perillo; Xiaojia Xu; M.G. Na

2007-11-30T23:59:59.000Z

405

Underwater Noise and the Distribution of Snapping Shrimp with Special Reference to the Asiatic and the Southwest and Central Pacific Areas  

E-Print Network (OSTI)

Six - Section 6.1 UNDERWATER NOISE AND TEE DISTRIBUTION OFOfficor, u. s. NavY Underwater Sound La.borntory COEUTCH - (I D' E NT I N A. ~ . UNDERWATER NOISE Ai'ID TEE DISTRIBUTION

Johnson, Martin W

1944-01-01T23:59:59.000Z

406

Independent Oversight Inspection, Brookhaven National Laboratory -  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

September 2008 September 2008 Independent Oversight Inspection, Brookhaven National Laboratory - September 2008 September 2008 Inspection of Emergency Management at the Brookhaven Site Office and Brookhaven National Laboratory The U.S. Department of Energy (DOE) Office of Independent Oversight inspected the emergency management program at DOE's Brookhaven National Laboratory (BNL) in June/July 2008. The inspection was performed by Independent Oversight's Office of Emergency Management Oversight (HS-63). This 2008 inspection found that hazardous material inventories remain low, and the program has been significantly improved by the issuance of a hazards survey, EPHAs, and revised emergency plan, as well as other upgraded program plans and procedures. Additionally, the EOC is better

407

Restaurant Hygiene Inspections and Online Reviews  

E-Print Network (OSTI)

Restaurant hygiene inspections are often cited as a success story of public disclosure. Hygiene grades influence customer decisions and serve as an accountability system for restaurants. However, cities (which are responsible for inspections) have limited resources to dispatch inspectors, which in turn limits the number of inspections that can be performed. We argue that NLP can be used to improve the effectiveness of inspections by allowing cities to target restaurants that are most likely to have a hygiene violation. In this work, we report the first empirical study demonstrating the utility of review analysis for predicting restaurant inspection results. 1

Jun Seok Kang; Yejin Choi; Polina Kuznetsova; Michael Luca; Jun Seok; Kang Polina; Kuznetsova Yejin Choi; Michael Luca

2013-01-01T23:59:59.000Z

408

BENCHMARKING EMERGING PIPELINE INSPECTION TECHNOLOGIES  

NLE Websites -- All DOE Office Websites (Extended Search)

Benchmarking Emerging Pipeline Inspection Technologies To Department of Energy National Energy Technology Laboratory (NETL) DE-AP26-04NT40361 and Department of Transportation Research and Special Programs Administration (RSPA) DTRS56-02-T-0002 (Milestone 7) September 2004 Final Report on Benchmarking Emerging Pipeline Inspection Technologies Cofunded by Department of Energy National Energy Technology Laboratory (NETL) DE-AP26-04NT40361 and Department of Transportation Research and Special Programs Administration (RSPA) DTRS56-02-T-0002 (Milestone 7) by Stephanie A. Flamberg and Robert C. Gertler September 2004 BATTELLE 505 King Avenue Columbus, Ohio 43201-2693 Neither Battelle, nor any person acting on their behalf: (1) Makes any warranty or representation, expressed or implied, with respect to the

409

Drum inspection robots: Application development  

Science Conference Proceedings (OSTI)

Throughout the Department of Energy (DOE), drums containing mixed and low level stored waste are inspected, as mandated by the Resource Conservation and Recovery Act (RCRA) and other regulations. The inspections are intended to prevent leaks by finding corrosion long before the drums are breached. The DOE Office of Science and Technology (OST) has sponsored efforts towards the development of robotic drum inspectors. This emerging application for mobile and remote sensing has broad applicability for DOE and commercial waste storage areas. Three full scale robot prototypes have been under development, and another project has prototyped a novel technique to analyze robotically collected drum images. In general, the robots consist of a mobile, self-navigating base vehicle, outfitted with sensor packages so that rust and other corrosion cues can be automatically identified. They promise the potential to lower radiation dose and operator effort required, while improving diligence, consistency, and documentation.

Hazen, F.B. [Fernald Environmental Restoration Management Corp., Cincinnati, OH (United States); Warner, R.D. [USDOE, Washington, DC (United States)

1996-02-01T23:59:59.000Z

410

Inspection games in arms control  

E-Print Network (OSTI)

An inspection game is a mathematical model of a situation in which an inspector verifies the adherence of an inspectee to some legal obligation, such as an arms control treaty, where the inspectee may have an interest in violating that obligation. The mathematical analysis seeks to determine an optimal inspection scheme, ideally one which will induce legal behavior, under the assumption that the potential illegal action is carried out strategically; thus a non-cooperative game with two players, inspector and inspectee, is defined. Three phases of development in the application of such models to arms control and disarmament may be identified. In the first of these, roughly from 1961 through 1968, studies that focused on inspecting a nuclear test ban treaty emphasized game theory, with less consideration given to statistical aspects associated with data acquisition and measurement uncertainty. The second phase, from 1968 to about 1985, involves work stimulated by the Treaty on the Non-Proliferation of Nuclear Weapons (NPT). Here, the verification principle of material accountancy came to the fore, along with the need to include the formalism of statistical decision theory within the inspection models. The third phase, 1985 to the present, has been dominated by challenges posed by such far-reaching verification agreements as the Intermediate Range Nuclear Forces Agreement (1NF), the Treaty on Conventional Forces in Europe (CFE) and the Chemical Weapons Convention (CWC), as well as perceived failures of the NPT system in Iraq and North Korea. In this connection, the interface between the political and technical aspects of verification is being examined from the game-theoretic viewpoint.

Rudolf Avenhaus; Morton Canty; D. Marc Kilgour; Bernhard Von Stengel; Shmuel Zamir

1996-01-01T23:59:59.000Z

411

Apparatus for inspecting fuel elements  

SciTech Connect

Disclosed is an alpha monitor usable in an automated nuclear fuel pin loading and processing unit. Fuel pins or other elongated pins are fed laterally into the alpha monitor in a singular fashion and are translated by a first roller assembly into a weld flare machining and decontamination substation not forming a part of the invention. Pins return and are lifted upwardly and transferred across to a combined pin lifting and electrode operating means which lifts the pins upwardly into a clamshell electrode assembly which is spread open by a combined pin lifting and electrode operating means. Once inserted the clamshell type electrode arrangement closes around the fuel pins so that inspection can occur. Fuel pins are inspected by charging electrodes to a negative potential and measuring the change in charge occurring when positively charged alpha particles strike the negatively charged electrodes. After inspection, the fuel pins are lowered by the pin lifting and electrode operating means into a second roller assembly which longitudinally conveys approved pins from the airtight enclosure in which the alpha monitor is mounted. If the fuel pins are rejected then they are moved laterally by a second transfer means and onto another system for further processing.

Oakley, David J. (Richland, WA); Groves, Oliver J. (Seattle, WA); Kaiser, Bruce J. (Wilmington, NC)

1986-01-01T23:59:59.000Z

412

Apparatus for inspecting fuel elements  

DOE Patents (OSTI)

This disclosure describes an alpha monitor usable in an automated nuclear fuel pin loading and processing unit. Fuel pins or other elongated pins are fed laterally into the alpha monitor in a singular fashion and are translated by a first roller assembly into a weld flare machining and decontamination substation not forming a part of the invention. Pins return and are lifted upwardly and transferred across to a combined pin lifting and electrode operating means which lifts the pins upwardly into a clamshell electrode assembly which is spread open by a combined pin lifting and electrode operating means. Once inserted the clamshell type electrode arrangement closes around the fuel pins so that inspection can occur. Fuel pins are inspected by charging electrodes to a negative potential and measuring the change in charge occurring when positively charged alpha particles strike the negatively charged electrodes. After inspection, the fuel pins are lowered by the pin lifting and electrode operating means into a second roller assembly which longitudinally conveys approved pins from the airtight enclosure in which the alpha monitor is mounted. If the fuel pins are rejected then they are moved laterally by a second transfer means and onto another system for further processing.

Kaiser, B.J.; Oakley, D.J.; Groves, O.J.

1984-12-21T23:59:59.000Z

413

APDS: Autonomous Pathogen Detection System  

SciTech Connect

An early warning system to counter bioterrorism, the Autonomous Pathogen Detection System (APDS) continuously monitors the environment for the presence of biological pathogens (e.g., anthrax) and once detected, it sounds an alarm much like a smoke detector warns of a fire. Long before September 11, 2001, this system was being developed to protect domestic venues and events including performing arts centers, mass transit systems, major sporting and entertainment events, and other high profile situations in which the public is at risk of becoming a target of bioterrorist attacks. Customizing off-the-shelf components and developing new components, a multidisciplinary team developed APDS, a stand-alone system for rapid, continuous monitoring of multiple airborne biological threat agents in the environment. The completely automated APDS samples the air, prepares fluid samples in-line, and performs two orthogonal tests: immunoassay and nucleic acid detection. When compared to competing technologies, APDS is unprecedented in terms of flexibility and system performance.

Langlois, R G; Brown, S; Burris, L; Colston, B; Jones, L; Makarewicz, T; Mariella, R; Masquelier, D; McBride, M; Milanovich, F; Masarabadi, S; Venkateswaran, K; Marshall, G; Olson, D; Wolcott, D

2002-02-14T23:59:59.000Z

414

The development of Zero-G class underwater robots: unrestricted attitude control using control moment gyros.  

E-Print Network (OSTI)

??The ‘Zero-G’ is designated as a new class of underwater robot that is capable of unrestricted attitude control. A novel control scheme based on internal… (more)

Thornton, Blair

2006-01-01T23:59:59.000Z

415

P2-28: Characterization of Pores and Cracks in Underwater Welds ...  

Science Conference Proceedings (OSTI)

Abstract Scope, Underwater shielded metal arc wet welding with coated electrodes is a common procedure for in situ repair of structural parts of offshore oil ...

416

Characterisation of long-range horizontal performance of underwater acoustic communication.  

E-Print Network (OSTI)

??Underwater acoustic communication is a rapidly progressing field of technology, largely due to recent advances in low cost and power efficient digital signal processors. Unfortunately,… (more)

Pusey, Grant Mark

2011-01-01T23:59:59.000Z

417

Caloric expenditure and substrate utilization in underwater treadmill running versus land-based treadmill running.  

E-Print Network (OSTI)

??The objective of this study is to compare the caloric expenditure and oxidative sources of underwater treadmill running and land-based treadmill running at maximal and… (more)

Schaal, Courtney

2009-01-01T23:59:59.000Z

418

An analysis of underwater habitats a development of the outline for aquatectural graphic standards.  

E-Print Network (OSTI)

??In addition to many forms of land-based architecture in this world, there are several instances of underwater habitats. These habitats have implications for space exploration… (more)

Riggin, Daniel

2009-01-01T23:59:59.000Z

419

Decentralized sensor placement and mobile localization on an underwater sensor network with depth adjustment capabilities.  

E-Print Network (OSTI)

??Over 70% of our planet is covered by water. It is widely believed that the underwater world holds ideas and resources that will fuel much… (more)

Detweiler, Carrick (Carrick James)

2010-01-01T23:59:59.000Z

420

On the detection of relativistic magnetic monopoles by deep underwater and underice neutrino telescopes  

E-Print Network (OSTI)

I present here some reflections and very speculative remarks on the detection of relativistic magnetic monopoles by currently operating deep underwater/ice neutrino telescopes.

B. K. Lubsandorzhiev

2005-06-13T23:59:59.000Z

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Recovery of underwater visibility and structure by polarization analysis  

E-Print Network (OSTI)

Abstract—Underwater imaging is important for scientific research and technology as well as for popular activities, yet it is plagued by poor visibility conditions. In this paper, we present a computer vision approach that removes degradation effects in underwater vision. We analyze the physical effects of visibility degradation. It is shown that the main degradation effects can be associated with partial polarization of light. Then, an algorithm is presented, which inverts the image formation process for recovering good visibility in images of scenes. The algorithm is based on a couple of images taken through a polarizer at different orientations. As a by-product, a distance map of the scene is also derived. In addition, this paper analyzes the noise sensitivity of the recovery. We successfully demonstrated our approach in experiments conducted in the sea. Great improvements of scene contrast and color correction were obtained, nearly doubling the

Yoav Y. Schechner; Nir Karpel

2005-01-01T23:59:59.000Z

422

Strongly coupled copper plasma generated by underwater electrical wire explosion  

Science Conference Proceedings (OSTI)

A number of theoretical approaches to the analysis of the parameters of a discharge channel consisting of strongly coupled plasma generated in the process of underwater electrical wire explosion are presented. The analysis is based on experimental results obtained from discharges employing Cu wire. The obtained experimental data included electrical measurements and optical observations from which information about the dynamics of the water flow was extrapolated. Numerical calculation based on a 1D magnetohydrodynamic model was used to simulate the process of underwater wire explosion. A wide range conductivity model was applied in this calculation and good agreement with a set of experimental data was obtained. A method of determining the average temperature of the discharge channel based on this model and experimental results is proposed, and the limits of this method's applicability are discussed.

Grinenko, A.; Gurovich, V.Tz.; Saypin, A.; Efimov, S.; Krasik, Ya.E.; Oreshkin, V.I. [Physics Department, Technion, 32000 Haifa (Israel); Institute of High Current Electronics, SB RAN, 634055 Tomsk (Russian Federation)

2005-12-15T23:59:59.000Z

423

Welding and Repair Technology Center: Underwater Laser Welding Studies  

Science Conference Proceedings (OSTI)

Repair of internal reactor components has been a continuing challenge for the nuclear industry. High radiation levels, underwater environment, and altered material weldability have made traditional repair methods more difficult to use for internal component repair. One of the key issues is to make seal-weld repairs on cracks that might exist due to stress corrosion or fatigue. Sealing of these cracks by welding might be necessary to maintain pressure boundary or flow requirements. During this research pr...

2009-12-21T23:59:59.000Z

424

Data collection, storage, and retrieval with an underwater sensor network  

E-Print Network (OSTI)

In this paper we present a novel platform for underwater sensor networks to be used for long-term monitoring of coral reefs and fisheries. The sensor network consists of static and mobile underwater sensor nodes. The nodes communicate point-to-point using a novel high-speed optical communication system integrated into the TinyOS stack, and they broadcast using an acoustic protocol integrated in the TinyOS stack. The nodes have a variety of sensing capabilities, including cameras, water temperature, and pressure. The mobile nodes can locate and hover above the static nodes for data muling, and they can perform network maintenance functions such as deployment, relocation, and recovery. In this paper we describe the hardware and software architecture of this underwater sensor network. We then describe the optical and acoustic networking protocols and present experimental networking and data collected in a pool, in rivers, and in the ocean. Finally, we describe our experiments with mobility for data muling in this network.

I. Vasilescu; K. Kotay; D. Rus; M. Dunbabin; P. Corke

2005-01-01T23:59:59.000Z

425

ANNUAL RADIOACTIVE WASTE TANK INSPECTION PROGRAM - 2011  

SciTech Connect

Aqueous radioactive wastes from Savannah River Site (SRS) separations and vitrification processes are contained in large underground carbon steel tanks. Inspections made during 2011 to evaluate these vessels and other waste handling facilities along with evaluations based on data from previous inspections are the subject of this report. The 2011 inspection program revealed that the structural integrity and waste confinement capability of the Savannah River Site waste tanks were maintained. All inspections scheduled per SRR-LWE-2011-00026, HLW Tank Farm Inspection Plan for 2011, were completed. Ultrasonic measurements (UT) performed in 2011 met the requirements of C-ESR-G-00006, In-Service Inspection Program for High Level Waste Tanks, Rev. 3, and WSRC-TR-2002-00061, Rev.6. UT inspections were performed on Tanks 25, 26 and 34 and the findings are documented in SRNL-STI-2011-00495, Tank Inspection NDE Results for Fiscal Year 2011, Waste Tanks 25, 26, 34 and 41. A total of 5813 photographs were made and 835 visual and video inspections were performed during 2011. A potential leaksite was discovered at Tank 4 during routine annual inspections performed in 2011. The new crack, which is above the allowable fill level, resulted in no release to the environment or tank annulus. The location of the crack is documented in C-ESR-G-00003, SRS High Level Waste Tank Leaksite Information, Rev.6.

West, B.; Waltz, R.

2012-06-21T23:59:59.000Z

426

A survey of evolutionary and embryogenic approaches to autonomic networking  

Science Conference Proceedings (OSTI)

The term ''autonomic networking'' refers to network-level software systems capable of self-management, according to the principles outlined by the Autonomic Computing initiative. Autonomicity is widely recognized as a crucial property to harness the ... Keywords: Artificial embryogenies, Autonomic networking, Chemical computing, Evolutionary computation, Genetic Algorithm, Genetic Programming

Daniele Miorandi; Lidia Yamamoto; Francesco De Pellegrini

2010-04-01T23:59:59.000Z

427

Underwater photomosaic system $40,000 Sandin is working to develop a new tool to take large-scale  

E-Print Network (OSTI)

Underwater photomosaic system $40,000 Sandin is working to develop a new tool to take large-scale photographs of the underwater environment. The effort comes in capturing many hi-resolution images

Russell, Lynn

428

Autonomous underwater vehicle (AUV) mapping reveals coral mound distribution, morphology, and oceanography in deep water of the  

E-Print Network (OSTI)

applicable to the seabed, water column and ocean surface of the high seas. Though few in number and rarely spaces (i.e. the seabed, water column, ocean surface, and even the air column above ­ which contrasts fisheries and other biological resources, seabed biodiversity and resources? (Young) If not, what

Alvarez, Pedro J.

429

The efficiency of reverse engineering in the design of the ORCA XI autonomous underwater vehicle by Rachel E. Sharples.  

E-Print Network (OSTI)

Reverse engineering is the process of determining how a system works to aid duplication, maintenance, or redesign. Applications of reverse engineering include mechanical, electrical, software, and process systems. Although ...

Sharples, Rachel E

2010-01-01T23:59:59.000Z

430

Independent Oversight Inspection, Pacific Northwest National Laboratory -  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Independent Oversight Inspection, Pacific Northwest National Independent Oversight Inspection, Pacific Northwest National Laboratory - December 2003 Independent Oversight Inspection, Pacific Northwest National Laboratory - December 2003 December 2003 Inspection of Environment, Safety, and Health Management at the Pacific Northwest National Laboratory The Secretary of Energy's Office of Independent Oversight and Performance Assurance (OA) conducted an inspection of environment, safety, and health (ES&H) at the U.S. Department of Energy (DOE) Pacific Northwest National Laboratory (PNNL) during November and December 2003. The inspection was performed by the OA Office of Environment, Safety and Health Evaluations. Overall, implementation of ISM at PNNL has improved noticeably since the 1998 DOE Headquarters independent oversight evaluation. This improvement is

431

Independent Oversight Inspection, Lawrence Livermore National Laboratory,  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Inspection, Lawrence Livermore National Inspection, Lawrence Livermore National Laboratory, Volume I - December 2004 Independent Oversight Inspection, Lawrence Livermore National Laboratory, Volume I - December 2004 December 2004 Inspection of Environment, Safety, and Health Management at the Lawrence Livermore National Laboratory The U.S. Department of Energy (DOE) Office of Independent Oversight and Performance Assurance (OA), within the Office of Security and Safety Performance Assurance (SSA), conducted an inspection of environment, safety, and health (ES&H) at the DOE Lawrence Livermore National Laboratory (LLNL) during October and November 2004. The inspection was performed by the OA Office of Environment, Safety and Health Evaluations. LSO and LLNL have established ISM systems that are conceptually sound but

432

Independent Oversight Inspection, Lawrence Livermore National Laboratory -  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Lawrence Livermore National Lawrence Livermore National Laboratory - February 2009 Independent Oversight Inspection, Lawrence Livermore National Laboratory - February 2009 February 2009 Inspection of Emergency Management at the Livermore Site Office and Lawrence Livermore National Laboratory The U.S. Department of Energy (DOE) Office of Independent Oversight inspected the emergency management program at DOE's Lawrence Livermore National Laboratory (LLNL) in October/November 2008. The inspection was performed by Independent Oversight's Office of Emergency Management Oversight. This 2008 inspection found that overall, the LLNL emergency management program is, with a few exceptions, well defined and better implemented in most areas than observed during previous inspections, but some implementation weaknesses remain that diminish the ability of the program

433

Design of a minimalist autonomous robotic vehicle  

E-Print Network (OSTI)

The purpose of this thesis is to investigate design alternatives for the creation of a minimalist autonomous robotic vehicle, based on the Ford Escape. The work builds on prior work performed by the MIT DARPA Urban Challenge ...

Spadafora, Mark (Mark A.)

2008-01-01T23:59:59.000Z

434

An Autonomous Doppler Sodar Wind Profiling System  

Science Conference Proceedings (OSTI)

An autonomous Doppler sodar wind profiling system has been designed, built, tested, and then deployed for 2 years at a remote site in Coats Land, Antarctica. The system is designed around a commercially available phased-array sodar (a Scintec ...

Philip S. Anderson; Russell S. Ladkin; Ian A. Renfrew

2005-09-01T23:59:59.000Z

435

The Autonomous Lagrangian Circulation Explorer (ALACE)  

Science Conference Proceedings (OSTI)

The autonomous Lagrangian circulation explorer (ALACE) is a subsurface float that cycles vertically from a depth where it is neutrally buoyant to the surface where it is located by, and relays data to, System Argos satellites. ALACEs are intended ...

R. E. Davis; L. A. Regier; J. Dufour; D. C. Webb

1992-06-01T23:59:59.000Z

436

Human inspiration for autonomous vehicle tactics  

E-Print Network (OSTI)

Tactical control is needed in environments characterized by uncertainty and continuous, dynamic change. Given the likelihood of time constraints and high risks associated with poor tactical choices, current autonomous ...

Beaton, Jonathan Scott

2006-01-01T23:59:59.000Z

437

Autonomous thruster failure recovery for underactuated spacecraft  

E-Print Network (OSTI)

Thruster failures historically account for a large percentage of failures that have occurred on orbit. Therefore, autonomous thruster failure detection, isolation, and recovery (FDIR) is an essential component to any robust ...

Pong, Christopher Masaru

2010-01-01T23:59:59.000Z

438

A flexible design framework for autonomous mowing  

E-Print Network (OSTI)

This work outlines the creation of a flexible design framework for autonomous mowing to meet changing customer needs and functionality across a spectrum of applications from residential areas to sport complexes. The thesis ...

Kraft, Justin (Justin A.)

2011-01-01T23:59:59.000Z

439

Underground Transmission Vault Inspection Using Robotic Techniques  

Science Conference Proceedings (OSTI)

Underground power lines require inspection and maintenance to ensure long-term performance and reliable operation. In addition to terminations at both ends of the underground lines, access to the lines for inspection and maintenance is obtained through underground vaults or manholes. General practices require utility personnel to enter the vaults for visual inspection and to make the necessary measurements using portable instruments.The Electric Power Research Institute has developed the ...

2013-11-22T23:59:59.000Z

440

Enduring Stockpile CMM Shell Inspection Plan (U)  

SciTech Connect

The slides are intended to serve as a high level summary of the CMM Shell Inspection Plan as presented to Pu Sustainment Legacy Pit Production IPT.

Montano, Joshua D. [Los Alamos National Laboratory; Flores, Randy A. [Los Alamos National Laboratory

2012-06-13T23:59:59.000Z

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Occupational Radiation Protection Program Inspection Criteria...  

NLE Websites -- All DOE Office Websites (Extended Search)

Inspection Criteria, Approach, and Lines of Inqu v Acting Di ector, Off'ke.-of Safety and Emergency Management Evaluations Date: '; 4 I &.- WJ Criteria Lead,...

442

Independent Oversight Inspection of Environment, Safety, and...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Independent Oversight Inspection of Environment, Safety, and Health Programs at the Savannah River Operations Office and Savannah River Site, January 2010 Independent Oversight...

443

Independent Oversight Inspection, Lawrence Berkeley National Laboratory -  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Berkeley National Berkeley National Laboratory - April 2009 Independent Oversight Inspection, Lawrence Berkeley National Laboratory - April 2009 April 2009 Inspection of Environment, Safety, and Health Programs at the Lawrence Berkeley National Laboratory The U.S. Department of Energy (DOE) Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), inspected environment, safety, and health (ES&H) programs at the DOE Lawrence Berkeley National Laboratory (LBNL) during January through February 2009. The inspection was performed by the Office of Independent Oversight's Office of Environment, Safety and Health Evaluations. The contractor assurance system has been improved and is identifying deficiencies and improving LBNL ES&H processes and performance. LBNL has

444

Independent Oversight Inspection, Brookhaven National Laboratory - November  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

November 2007 November 2007 Independent Oversight Inspection, Brookhaven National Laboratory - November 2007 November 2007 Inspection of Environment, Safety, and Health Programs at the Brookhaven National Laboratory The U.S. Department of Energy (DOE) Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), inspected environment, safety, and health (ES&H) programs at the DOE Brookhaven Site Office (BHSO) and Brookhaven National Laboratory (BNL) during August and September 2007. The ES&H inspection was performed by Independent Oversight's Office of Environment, Safety and Health Evaluations. BHSO has established mechanisms to gather performance data and provide feedback to laboratory management, which is resulting in improvements

445

Inspection Report: IG-0821 | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Inspection Report: IG-0821 Inspection Report: IG-0821 Inspection Report: IG-0821 September 11, 2009 Fire Suppression and Related Services at Los Alamos National Laboratory The Department of Energy's (DOE's) Los Alamos National Laboratory (LANL) is a multidisciplinary research institution engaged in strategic science on behalf of national security. LANL operates in "unique" hazard environments, to include special nuclear materials, explosives, and hazardous chemicals, that create special fire suppression and emergency management challenges. To address these challenges, LANL must have a comprehensive approach to the protection of personnel, facilities, physical assets, and programmatic activities from fire and related dangers. Topic: National Security and Safety Inspection Report: IG-0821

446

Inspection Report: IG-0488 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

8 8 Inspection Report: IG-0488 November 20, 2000 Inspection of Selected Aspects of the Department of Energy's Classified Document Transmittal Process In view of recent concerns regarding the security of Department of Energy (DOE) classified information, including nuclear weapons information, we initiated an inspection to determine whether officials of the Department and its contractors, including officials of the National Nuclear Security Administration (NNSA) and its contractors, followed the Department's policies and procedures when transmitting classified documents to entities outside the Department. Inspection Report: IG-0488 More Documents & Publications Semiannual Report to Congress: October 1, 2000 - March 31, 2001 Special Report: IG-0538 Safety and Security Enforcement Process Overview

447

Independent Oversight Inspection, Idaho National Laboratory ...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

of Energy (DOE) Office of Independent Oversight, within the Office of Health, Safety and Security (HSS), inspected the emergency management program at DOE's Idaho Operations...

448

Radiation Inspection System Lab (RISL) | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiation Inspection System Lab May 30, 2013 This team has the background and experience to test and optimize radiation detection systems from handheld background survey meters to...

449

Occupational Radiation Protection Program Inspection Criteria...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Evaluations Criteria Review and Approach Document 1.0 PURPOSE Subject: Occupational Radiation Protection Program Inspection Criteria, Approach, and Lines of Inqu v Acting Di...

450

Environmental Radiation Protection, Inspection Criteria, Approach...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

is approved for use by the Office of ES&H Evaluations. Subject: Environmental Radiation Protection, Inspection Criteria, Approach, and Lines of Inquiry Director, ffice of...

451

Independent Oversight Inspection of Environment, Safety, and...  

NLE Websites -- All DOE Office Websites (Extended Search)

functions of safety management for various work activities. The OA inspection team used a selective sampling approach to determine the effectiveness of NV and NTS in implementing...

452

Electrical Equipment Inventory and Inspection Information  

NLE Websites -- All DOE Office Websites (Extended Search)

Electrical Equipment Inventory and Inspection Information APS Non-NRTL Electrical Equipment Inventory Spreadsheet ANL Recognized Reputable Electrical Equipment Manufacturer List as...

453

Inspection Report: IG-0531 | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

over DOE Headquarters and field site computer networks. Inspection Report: IG-0531 More Documents & Publications Audit Report: IG-0568 Audit Report: IG-0617 Audit Report: IG-0631...

454

Hazardous Waste Management Implementation Inspection Criteria...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

to the Director of the Office of ES&H Evaluations on (301) 903-5392. Subject: Hazardous Waste Management Inplementation Inspection Criteria, Approach, Evaluations Management Date:...

455

Inspection Report: IG-0478 | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

on the Review of Scientific Integrity Issues at Lawrence Berkeley National Laboratory The Office of Inspector General initiated an inspection into issues relating to allegations of...

456

Inspection Report: IG-0604 | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Operations Office Management of Emergency Response and Law Enforcement-Related Grants The Office of Inspector General (OIG) conducted an inspection of select grants funded by the...

457

Inspection Report: IG-0621 | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

are considered sensitive items by DOE and are subject to strict inventory controls. The Office of Inspector General (OIG) initiated an inspection of internal controls over...

458

Inspection Report: IG-0757 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7 Inspection Report: IG-0757 February 16, 2007 Excessing of Computers Used for Unclassified Controlled Information at the Idaho National Laboratory In support of its mission, the...

459

BUILDING UNDERWATER AD-HOC NETWORKS AND SENSOR NETWORKS FOR LARGE SCALE REAL-TIME AQUATIC APPLICATIONS  

E-Print Network (OSTI)

BUILDING UNDERWATER AD-HOC NETWORKS AND SENSOR NETWORKS FOR LARGE SCALE REAL-TIME AQUATIC, CT 06269 Gainesville, FL 32611 Abstract-- Large-scale Underwater Ad-hoc Networks (UANET) and Underwater Sensor Networks (UWSN) are novel networking paradigms to explore the uninhabited oceans. How- ever

Cui, Jun-Hong

460

626 IEEE JOURNAL OF OCEANIC ENGINEERING, VOL. 37, NO. 4, OCTOBER 2012 A Novel Blending Technique for Underwater  

E-Print Network (OSTI)

for Underwater Gigamosaicing Ricard Prados, Rafael Garcia, Nuno Gracias, Javier Escartín, and László Neumann underwater photomosaics to small areas de- spite the hundreds of thousands of square meters that modern sur- veys can cover. Large underwater photomosaics are increasingly in demand for the characterization

Escartin, Javier

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

An Underwater Communication and Sensing Testbed in Marina del Rey Andrew Goodney, Young H. Cho, John Heidemann, John Wroclawski  

E-Print Network (OSTI)

An Underwater Communication and Sensing Testbed in Marina del Rey Andrew Goodney, Young H. Cho, and communication underwater is increasingly important to scientists who study the oceans, rivers, and lakes, as government and industry seek to observe, protect, exploit, and control resources underwater. With growing

Heidemann, John

462

A Novel Application of Multivariable L1 Adaptive Control : from Design to Real-Time Implementation on an Underwater Vehicle  

E-Print Network (OSTI)

on an Underwater Vehicle Divine Maalouf1 Vincent Creuze1 and Ahmed Chemori1 Abstract-- This paper presents time in the field of underwater vehicles control. This paper summarizes the implementation and experimental results obtained on a modified version of the AC-ROV underwater vehicle. Various experimental

Paris-Sud XI, Université de

463

Underwater Unmanned Vehicle Boeing gave us the opportunity to compete against the Electrical Engineering Dept. The competition was  

E-Print Network (OSTI)

Underwater Unmanned Vehicle Overview Boeing gave us the opportunity to compete against Underwater Unmanned Vehicles. Basically we had to build remote controlled submarines from the ground up. Objectives To design a Underwater Unmanned Vehicle that meets the following Specs: Has an internal Ballast

Demirel, Melik C.

464

1 Underwater 3D SLAM through Entropy Minimization J.M. Sez, A. Hogue, F. Escolano and M. Jenkin  

E-Print Network (OSTI)

1 Underwater 3D SLAM through Entropy Minimization J.M. Sáez, A. Hogue, F. Escolano and M. Jenkin Underwater 3D SLAM through Entropy Minimization J.M. Sáez*, A. Hogue**, F. Escolano* and M. Jenkin** Underwater 3D SLAM through Entropy Minimization *Robot Vision Group, Dept. de Ciencia de la Computación e

Escolano, Francisco

465

Underwater vehicles: a surprising non time-optimal path This paper deals with the time-optimal problem for  

E-Print Network (OSTI)

Underwater vehicles: a surprising non time-optimal path M. Chyba Abstract This paper deals with the time-optimal problem for a class of underwater vehicles. We prove that if two configurations at rest or an underwater ve- hicle. This problem is a particularly challenging one and has been widely studied during

Sontag, Eduardo

466

3D Underwater Sensor Network Localization Amin Y. Teymorian, Student Member, IEEE, Wei Cheng, Student Member, IEEE,  

E-Print Network (OSTI)

3D Underwater Sensor Network Localization Amin Y. Teymorian, Student Member, IEEE, Wei Cheng, and Zexin Lu, Member, IEEE Abstract--We transform the 3D underwater sensor network (USN) localization termed as Underwater Sensor Positioning (USP). Through extensive simulations, we show that USP has

Cheng, Xiuzhen "Susan"

467

Underwater Maintenance Guide: Revision 2: A Guide to Diving and Remotely-Operated Vehicle Operations for Nuclear Maintenance Personnel  

Science Conference Proceedings (OSTI)

The use of water in nuclear power generating stations, both as an effective radiation barrier and thermal transfer medium, is critical to basic station operations. Consequently, underwater services play an important role in the maintenance and repair of these stations. Revision 2 of this guide expands previous discussions on underwater maintenance and provides new information on underwater welding and cutting operations and tasks.

1994-05-02T23:59:59.000Z

468

ATA: adaptive transmission algorithms for prolonging lifetime in underwater sensor networks  

Science Conference Proceedings (OSTI)

The severe energy constraints of sensors and the unique characteristics of underwater sensor networks (UWSNs) present major challenges for the long-term monitoring applications. This paper proposes two novel adaptive transmission algorithms for UWSNs ... Keywords: algorithms, lifetime, underwater sensor networks

Zhongwen Guo; Jinfeng Dou; Wei Han; Guangxu Zhang; Zhengang Ha

2008-05-01T23:59:59.000Z

469

State of the art in protocol research for underwater acoustic sensor networks  

E-Print Network (OSTI)

Underwater networks of sensors have the potential to enable unexplored applications and to enhance our ability to observe and predict the ocean. In this paper, architectures for twodimensional and three-dimensional underwater sensor networks are proposed. A detailed overview on the current solutions for medium access control, network, and transport layer protocols is given and open research issues are discussed. I.

Ian F. Akyildiz; Dario Pompili; Tommaso Melodia

2007-01-01T23:59:59.000Z

470

Robust servo-control for underwater robots using banks of visual filters  

Science Conference Proceedings (OSTI)

We present an application of machine learning to the semi-automatic synthesis of robust servo-trackers for underwater robotics. In particular, we investigate an approach based on the use of Boosting for robust visual tracking of color objects in an underwater ...

Junaed Sattar; Gregory Dudek

2009-05-01T23:59:59.000Z

471

Routing Algorithms for Delay-insensitive and Delay-sensitive Applications in Underwater Sensor Networks  

E-Print Network (OSTI)

Underwater sensor networks consist of sensors and vehicles deployed to perform collaborative monitoring tasks over a given region. Underwater sensor networks will find applications in oceanographic data collection, pollution monitoring, offshore exploration, disaster prevention, assisted navigation, tactical surveillance, and mine reconnaissance. Underwater acoustic networking is the enabling technology for these applications. In this paper, an architecture for three-dimensional underwater sensor networks is considered, and a model characterizing the acoustic channel utilization efficiency is introduced, which allows investigating some fundamental characteristics of the underwater environment. In particular, the model allows setting the optimal packet size for underwater communications given monitored volume, density of the sensor network, and application requirements. Moreover, the problem of data gathering is investigated at the network layer by considering the cross-layer interactions between the routing functions and the characteristics of the underwater acoustic channel. Two distributed routing algorithms are introduced for delay-insensitive and delaysensitive applications. The proposed solutions allow each node to select its next hop, with the objective of minimizing the energy consumption taking the varying condition of the underwater channel and the different application requirements into account. The proposed routing solutions are shown to achieve the performance targets by means of simulation.

Dario Pompili; Tommaso Melodia; Ian F. Akyildiz

2006-01-01T23:59:59.000Z

472

Optimal Inspection First and Last Policies for a Computer System  

Science Conference Proceedings (OSTI)

When a computer system executes successive jobs and processes with random time intervals, it would be impossible or impractical to make some inspections to check faults that occur intermittently in a strict periodic fashion. From such a viewpoint, by ... Keywords: periodic inspection, random inspection, inspection first, inspection last, checking time

Xufeng Zhao; Syouji Nakamura; Toshio Nakagawa

2012-11-01T23:59:59.000Z

473

Underwater wireless ad hoc sensor networks are aimed at remotely monitoring various aquatic activities, such as marine biological and zoological lives, geological changes, and  

E-Print Network (OSTI)

Abstract Underwater wireless ad hoc sensor networks are aimed at remotely monitoring various aquatic activities, such as marine biological and zoological lives, geological changes, and underwater quality of service is more difficult in underwater net- works due to large underwater propagation delay

Kumar, M. Jagadesh

474

Hoisting and Rigging: Inspection and Maintenance Requirements  

E-Print Network (OSTI)

Devices, Slings, and Rigging Hardware and Accessories (SLAC-I-730-0A21S-036) Hoisting and Rigging: PreHoisting and Rigging: Inspection and Maintenance Requirements URL: http://www-group.slac.stanford.edu/esh/eshmanual/references/hoisting Department: Field Safety and Building Inspection Program: Hoisting and Rigging Authority: ESH Manual, Chapter

Wechsler, Risa H.

475

ANNUAL RADIOACTIVE WASTE TANK INSPECTION PROGRAM 2008  

SciTech Connect

Aqueous radioactive wastes from Savannah River Site (SRS) separations and vitrification processes are contained in large underground carbon steel tanks. Inspections made during 2008 to evaluate these vessels and other waste handling facilities along with evaluations based on data from previous inspections are the subject of this report.

West, B.; Waltz, R.

2009-06-11T23:59:59.000Z

476

Annual Radioactive Waste Tank Inspection Program - 2000  

SciTech Connect

Aqueous radioactive wastes from Savannah River Site (SRS) separations and vitrification processes are contained in large underground carbon steel tanks. Inspections made during 2000 to evaluate these vessels and other waste handling facilities along with evaluations based on data from previous inspections are the subject of this report.

West, W.R.

2001-04-17T23:59:59.000Z

477

Laser-Induced Underwater Plasma And Its Spectroscopic Applications  

SciTech Connect

Applications of Laser Induced Breakdown Spectroscopy (LIBS) for analysis of immersed solid and soft materials, and for liquid impurities are described. A method for improving the LIBS signal underwater and for obtaining quantitative analyses in presence of strong shot-to-shot variations of the plasma properties is proposed. Dynamic of the gas bubble formed by the laser pulse is also discussed, together with its importance in Double-Pulse (DP) laser excitation. Results of the studies relative to an application of multi-pulse sequence and its effects on the plasma and gas bubble formation are also presented.

Lazic, Violeta [ENEA, FIS-LAS, Via. E. Fermi 45, 00044 Frascati (Italy)

2008-09-23T23:59:59.000Z

478

Independent Oversight Inspection, Lawrence Livermore National Laboratory -  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Lawrence Livermore National Lawrence Livermore National Laboratory - June 2005 Independent Oversight Inspection, Lawrence Livermore National Laboratory - June 2005 June 2005 Inspection of Emergency Management at the Livermore Site Office and Lawrence Livermore National Laboratory The Secretary of Energy's Office of Independent Oversight and Performance Assurance (OA), within the Office of Security and Safety Performance Assurance, conducted an inspection of the emergency management program at the U.S. Department of Energy (DOE) Lawrence Livermore National Laboratory (LLNL) site in June 2005. The inspection was performed by the OA Office of Emergency Management Oversight. This 2005 OA inspection determined that LLNL has completed program development work or has established an appropriate framework for nearly all

479

Inspection Report: IG-0531 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Inspection Report: IG-0531 Inspection Report: IG-0531 Inspection Report: IG-0531 November 13, 2001 Inspection of Cyber Security Standards for Sensitive Personal Information The Office of Inspector General (OIG), U.S. Department of Energy (DOE), identified a concern relating to the cyber security of unclassified sensitive personal information maintained by the Department under the Privacy Act of 1974, and other personal information exempt from disclosure under the Freedom of Information Act (Privacy Act/FOIA personal information). Specifically, the concern related to possible compromise of this type of information on or over DOE Headquarters and field site computer networks. Inspection Report: IG-0531 More Documents & Publications Audit Report: IG-0568 Audit Report: IG-0617 Audit Report: IG-0572

480

Inspection/Sampling Schedule | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Inspection/Sampling Schedule Inspection/Sampling Schedule Inspection/Sampling Schedule Site Inspection and Water Sampling Schedules Note: The following schedules are subject to change without prior notice and will be updated periodically. Site Name Inspection Date Sampling Week Ambrosia Lake, NM, Disposal Site August 18, 2014 November 20, 2013 Bluewater, NM, Disposal Site August 18, 2014 November 20, 2013 January 28, 2014 May 12, 2014 Boiling Nuclear Superheater (BONUS), PR, Decommissioned Reactor Site Next event 2017 Burrell, PA, Disposal Site December 9, 2013 November 20, 2013 Canonsburg, PA, Disposal Site December 9, 2013 November 19, 2013 Durango, CO, Disposal Site May 19, 2014 June 2, 2014 Durango, CO, Processing Site N/A June 2, 2014 September 1, 2014 Edgemont, SD, Disposal Site June 23, 2014 N/A

Note: This page contains sample records for the topic "autonomous underwater inspection" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

POST 10/Truck Inspection Station (Map 3  

NLE Websites -- All DOE Office Websites (Extended Search)

POST 10/Truck Inspection Station (Map 3) POST 10/Truck Inspection Station (Map 3) Changes Effective January 11, 2010 Pajarito Corridor Deliveries: Drivers of commercial delivery trucks headed to the Pajarito Corridor (Pajarito Road bounded by NM Highway 4 and Diamond Drive) must stop at Post 10 for truck inspections. Drivers will then need to present time-stamped inspection passes from Post 10 to protective force officers stationed at the Pajarito Corridor. (Drivers exiting Post 10 should (1) turn right and proceed west on the Truck Route; (2) turn left onto West Jemez Road; (3) proceed to Lane 7; (4) STOP and present the inspection pass to the protective force officer; (5) turn left onto Diamond

482

Security enhanced with increased vehicle inspections  

NLE Websites -- All DOE Office Websites (Extended Search)

Security enhanced with increased vehicle inspections Security enhanced with increased vehicle inspections Security measures increase as of March: vehicle inspections won't delay traffic New increased security procedures meet LANL's security objectives while minimizing impacts on local businesses and tourists. March 23, 2012 The most prominent change is the increase of random inspections of all vehicles transiting the Laboratory, to include West and East Jemez Roads and roadways leading to the main Laboratory administrative area, Technical Area 3 Expect random inspections of all vehicles transiting the Laboratory, to include West and East Jemez Roads and roadways leading to the main Laboratory administrative area, Technical Area 3. Contact Kevin Roark Communications Office (505) 665-9202 Email "We're doing our best to meet our security objectives while minimizing

483

Inspection Report: IG-0547 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Inspection Report: IG-0547 Inspection Report: IG-0547 Inspection Report: IG-0547 March 22, 2002 Licensing of Trade Secrets by Sandia National Laboratories The Office of Inspector General (OIG), U.S. Department of Energy (DOE), initiated an inspection into the facts and circumstances surrounding the issuance of a trade secret license in June 2000 by Sandia National Laboratories (Sandia) at Livermore, California, to Axsun Technologies (Axsun), a private company. This inspection was initiated after the OIG received allegations that the issuance of the Axsun license was in violation of both DOE policy and the requirements of Sandia's management and operating contract. It was alleged that Sandia had been advised for many years that DOE policy prohibited the national laboratories from creating, maintaining or marketing trade secrets. The allegation suggested

484

Uranium at Y-12: Inspection | Y-12 National Security Complex  

NLE Websites -- All DOE Office Websites (Extended Search)

Inspection Uranium at Y-12: Inspection Posted: July 22, 2013 - 3:36pm | Y-12 Report | Volume 10, Issue 1 | 2013 Inspection of enriched uranium is performed by dimensional checks...

485

Remote field eddy current inspection  

SciTech Connect

The Remote Field Eddy Current (RFEC) technique uses an internal probe to inspect conducting tubes nondestructively. A coaxial solenoidal exciter, energized with low frequency AC, and detector coils near the inside of the pipe wall are separated by about two pipe diameters to obtain through wall transmission and equal sensitivity to defects on the outside or inside of the pipe wall. Calculation methods are outlined and the voltage plane polar plot signal representation for defect measurement is described. Slit defect interactions in ferromagnetic and non-ferromagnetic tubes are discussed. Defect-induced anomalous fields are interpreted in terms of anomalous source eddy current and missing magnetization defect models. The use of computer animations to represent the time variations of high resolution field measurements and calculations is described.

Atherton, D.L. [Queen`s Univ., Kingston, Ontario (Canada). Dept. of Physics

1995-11-01T23:59:59.000Z

486

Cooling Tower Inspection with Scuba  

E-Print Network (OSTI)

A serious problem of scale and other solid material settling in heat transfer equipment was threatening to shut down our ethylene plant. All evidence pointed to the cooling tower as the source of the contamination. Visual inspection of the cooling tower pump suction basin was accomplished by diving into the basin using SCUBA gear. It was possible to see a build-up of debris on the pump suction basket strainers and on the floor of the sumps. Also, it was discovered that one of the four baskets had been installed incorrectly. Photographs of the basket strainers were taken to aid in describing their exact condition. With the aid of SCUBA it was possible to sufficiently clean the pump sumps so that costly downtime was avoided. Likewise, using this technique, steps were taken to greatly reduce the chance for further contamination of the circulating cooling water system.

Brenner, W.

1982-01-01T23:59:59.000Z

487

Appendix B Landfill Inspection Forms and Survey Data  

Office of Legacy Management (LM)

Appendix B Landfill Inspection Forms and Survey Data This page intentionally left blank This page intentionally left blank Original Landfill January 2011 Monthly Inspection -...

488

Inspection Report on "Protective Force Performance Test Improprieties...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Other Agencies You are here Home Inspection Report on "Protective Force Performance Test Improprieties," DOEIG-0636 Inspection Report on "Protective Force Performance Test...

489

Development of an Inspection Platform and a Suite of Sensors...  

NLE Websites -- All DOE Office Websites (Extended Search)

for conventional pigs. * Inspection cost lower (mile) than direct assessment or hydro testing. * A more versatile platform capable of performing a variety of inspection...

490

Independent Oversight Inspection of Emergency Management at the...  

NLE Websites -- All DOE Office Websites (Extended Search)

of Energy October 2002 Volume II INDEPENDENT OVERSIGHT INSPECTION OF EMERGENCY MANAGEMENT AT THE NEVADA TEST SITE VOLUME II October 2002 i INDEPENDENT OVERSIGHT INSPECTION OF...

491

Independent Oversight Inspection, Y-12 National Security Complex...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

June 2008 Independent Oversight Inspection, Y-12 National Security Complex - June 2008 June 2008 Inspection of Environment, Safety, and Health Programs at the Y-12 National...

492

Independent Oversight Inspection, Y-12 National Security Complex...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Y-12 National Security Complex - February 2008 Independent Oversight Inspection, Y-12 National Security Complex - February 2008 February 2008 Inspection of Emergency Management at...

493

2010 Inspection and Status Report for the Boiling Nuclear Superheater...  

Office of Legacy Management (LM)

3 Annual Inspection - Boiling Nuclear Superheat (BONUS) Site, Rincn, Puerto Rico October 2013 Page 1 2013 Inspection and Status Report for the Former Boiling Nuclear Superheater...

494

December 4, 2007: NETL's Robotic Pipeline Inspection Tool  

Energy.gov (U.S. Department of Energy (DOE))

December 4, 2007The Department's National Energy Technology Laboratory announces the development of a new robotic pipeline inspection tool that could revolutionize the pipeline inspection process....

495

North American Standard Level VI Inspection Program Update: Ensuring...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

North American Standard Level VI Inspection Program Update: Ensuring Safe Transportation of Radioactive Material North American Standard Level VI Inspection Program Update:...

496

Impacts of Bottom Trawling on Underwater Cultural Heritage  

E-Print Network (OSTI)

The fishing method of trawling, or dragging, has long been shown to be harmful to a plethora of sea life inhabiting the world?s oceans and inland waterways. Fishing nets scour the seabed, disturbing everything in their path, while usually in search of only one type of bottom-dwelling species. Impacts to the seafloor include a removal of topographic features, disturbance of the upper sediment layers, including deep furrows, as well as physical and chemical changes to sediment morphology. While biological organisms and communities can potentially recover from this destruction, archaeological data cannot. Fishermen have been raising important artifacts in their nets for over a century. These finds have helped archaeologists locate significant sites, but they also have the adverse effect of irreparably damaging these sites. This thesis explores the impacts of bottom trawling on underwater cultural heritage. The methods and gear used by trawlers and their documented effects upon the sea floor are identified. Examples of the types of damage shipwreck sites receive after being impacted by trawling are presented. Instances where fishermen have raised prehistoric artifacts from inundated land sites are also introduced. The fishing and archaeological communities must cooperate to limit further damage to underwater cultural heritage around the globe.

Atkinson, Christopher

2012-05-01T23:59:59.000Z

497

Neutron Interrogation System For Underwater Threat Detection And Identification  

Science Conference Proceedings (OSTI)

Wartime and terrorist activities, training and munitions testing, dumping and accidents have generated significant munitions contamination in the coastal and inland waters in the United States and abroad. Although current methods provide information about the existence of the anomaly (for instance, metal objects) in the sea bottom, they fail to identify the nature of the found objects. Field experience indicates that often in excess of 90% of objects excavated during the course of munitions clean up are found to be non-hazardous items (false alarm). The technology to detect and identify waterborne or underwater threats is also vital for protection of critical infrastructures (ports, dams, locks, refineries, and LNG/LPG). We are proposing a compact neutron interrogation system, which will be used to confirm possible threats by determining the chemical composition of the suspicious underwater object. The system consists of an electronic d-T 14-MeV neutron generator, a gamma detector to detect the gamma signal from the irradiated object and a data acquisition system. The detected signal then is analyzed to quantify the chemical elements of interest and to identify explosives or chemical warfare agents.

Barzilov, Alexander P.; Novikov, Ivan S.; Womble, Phil C. [Department of Physics and Astronomy, Western Kentucky University, 1906 College Heights Blvd, 11077 Bowling Green, KY 42101 (United States)

2009-03-10T23:59:59.000Z

498

Atmospheric Muon Flux at Sea Level, Underground, and Underwater  

E-Print Network (OSTI)

The vertical sea-level muon spectrum at energies above 1 GeV and the underground/underwater muon intensities at depths up to 18 km w.e. are calculated. The results are particularly collated with a great body of the ground-level, underground, and underwater muon data. In the hadron-cascade calculations, the growth with energy of inelastic cross sections and pion, kaon, and nucleon generation in pion-nucleus collisions are taken into account. For evaluating the prompt muon contribution to the muon flux, we apply two phenomenological approaches to the charm production problem: the recombination quark-parton model and the quark-gluon string model. To solve the muon transport equation at large depths of homogeneous medium, a semi-analytical method is used. The simple fitting formulas describing our numerical results are given. Our analysis shows that, at depths up to 6-7 km w. e., essentially all underground data on the muon intensity correlate with each other and with predicted depth-intensity relation for conventional muons to within 10%. However, the high-energy sea-level data as well as the data at large depths are contradictory and cannot be quantitatively decribed by a single nuclear-cascade model.

E. V. Bugaev; A. Misaki; V. A. Naumov; T. S. Sinegovskaya; S. I. Sinegovsky; N. Takahashi

1998-03-30T23:59:59.000Z

499

Autonomous wind power systems are economically competitive  

Science Conference Proceedings (OSTI)

Autonomous wind power systems, i.e. electric conversion systems utilizing the wind as the only energy source, are especially useful for isolated applications (telecommunications, measuring stations, pumps, ...) and for remote individual domestic applications (direct feed of electrical energy into household mains, space and water heating, ...) or in the farm (greenhouse heating, milk cooling, ...). The power rating of autonomous systems can range from a few 100 W to about 50 kW. Usually a storage is incorporated in the form of electric batteries or standard night storage heaters, improving considerably the ability of the system to sustain the average power and ameliorate the reliability.

Van Leuven, J.

1983-12-01T23:59:59.000Z

500

ANNUAL RADIOACTIVE WASTE TANK INSPECTION PROGRAM 2010  

SciTech Connect

Aqueous radioactive wastes from Savannah River Site (SRS) separations and vitrification processes are contained in large underground carbon steel tanks. Inspections made during 2010 to evaluate these vessels and other waste handling facilities along with evaluations based on data from previous inspections are the subject of this report. The 2010 inspection program revealed that the structural integrity and waste confinement capability of the Savannah River Site waste tanks were maintained. All inspections scheduled per SRR-LWE-2009-00138, HLW Tank Farm Inspection Plan for 2010, were completed. Ultrasonic measurements (UT) performed in 2010 met the requirements of C-ESG-00006, In-Service Inspection Program for High Level Waste Tanks, Rev. 3, and WSRC-TR-2002-00061, Rev.6. UT inspections were performed on Tanks 30, 31 and 32 and the findings are documented in SRNL-STI-2010-00533, Tank Inspection NDE Results for Fiscal Year 2010, Waste Tanks 30, 31 and 32. A total of 5824 photographs were made and 1087 visual and video inspections were performed during 2010. Ten new leaksites at Tank 5 were identified in 2010. The locations of these leaksites are documented in C-ESR-G-00003, SRS High Level Waste Tank Leaksite Information, Rev.5. Ten leaksites at Tank 5 were documented during tank wall/annulus cleaning activities. None of these new leaksites resulted in a release to the environment. The leaksites were documented during wall cleaning activities and the waste nodules associated with the leaksites were washed away. Previously documented leaksites were reactivated at Tank 12 during waste removal activities.

West, B.; Waltz, R.

2011-06-23T23:59:59.000Z