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1

Non-Destructive Evaluation (NDE) and Testing Facilities - Nuclear  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Facilities > Non-Destructive Facilities > Non-Destructive Evaluation (NDE) and Testing Facilities Non-Destructive Evaluation (NDE) and Testing Facilities Overview MTS Table Top Load Frame X-ray Inspection Systems Other Facilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Non-Destructive Evaluation (NDE) and Testing Facilities The Non-Destructive Evaluation (NDE) and Testing Facilities contain state-of-the-art NDE laboratories including microwave/millimeter wave, acoustic/ultrasonic, X-ray, thermal imaging, optics, and eddy current for health monitoring of materials and components used in aerospace, defense, and power generation (fossil and nuclear) industries as well as for medical and scientific research. Bookmark and Share

2

MTS Table Top Load frame [Non-Destructive Evaluation (NDE) and Testing  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Engineering> Facilities > Non-Destructive Evaluation Engineering> Facilities > Non-Destructive Evaluation (NDE) and Testing Facilities > MTS Table Top Load frame Non-Destructive Evaluation (NDE) and Testing Facilities Overview MTS Table Top Load Frame X-ray Inspection Systems Other Facilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Non-Destructive Evaluation (NDE) and Testing Facilities MTS Table Top Load frame Bookmark and Share PDF version [167KB] The Non-destructive Evaluation group operates an MTS Table Top Load frame for ultimate strength and life cycle testing of various ceramic, ceramic-matrix (FGI), carbon, carbon fiber, cermet (CMC) and metal alloy engineering samples. The load frame is a servo-hydraulic type designed to function in a closed loop configuration under computer control. The system

3

X-ray inspection systems [Non-Destructive Evaluation (NDE) and Testing  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Engineering > Facilities > Non-Destructive Engineering > Facilities > Non-Destructive Evaluation (NDE) and Testing Facilities > X-ray inspection systems Non-Destructive Evaluation (NDE) and Testing Facilities Overview MTS Table Top Load Frame X-ray Inspection Systems Other Facilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Non-Destructive Evaluation (NDE) and Testing Facilities X-ray inspection systems Bookmark and Share PDF version [140KB] The Non-destructive Evaluation group operates two, industrial, x-ray inspection systems that are used primarily to characterize internal features of one-of-a-kind engineering samples and/or high-value components. Both systems utilize commercial, solid-state, imaging detectors to produce electronic/digital images of the components under test.

4

Light Water Reactor Sustainability (LWRS) Program – Non-Destructive Evaluation (NDE) R&D Roadmap for Determining Remaining Useful Life of Aging Cables in Nuclear Power Plants  

SciTech Connect (OSTI)

Executive Summary [partial] The purpose of the non-destructive evaluation (NDE) R&D Roadmap for Cables is to support the Materials Aging and Degradation (MAaD) R&D pathway. A workshop was held to gather subject matter experts to develop the NDE R&D Roadmap for Cables. The focus of the workshop was to identify the technical gaps in detecting aging cables and predicting their remaining life expectancy. The workshop was held in Knoxville, Tennessee, on July 30, 2012, at Analysis and Measurement Services Corporation (AMS) headquarters. The workshop was attended by 30 experts in materials, electrical engineering, and NDE instrumentation development from the U.S. Nuclear Regulatory Commission (NRC), U.S. Department of Energy (DOE) National Laboratories (Oak Ridge National Laboratory, Pacific Northwest National Laboratory, Argonne National Laboratory, and Idaho National Engineering Laboratory), universities, commercial NDE service vendors and cable manufacturers, and the Electric Power Research Institute (EPRI).

Simmons, K.L.; Ramuhali, P.; Brenchley, D.L.; Coble, J.B.; Hashemian, H.M.; Konnick, R.; Ray, S.

2012-09-01T23:59:59.000Z

5

Light Water Reactor Sustainability (LWRS) Program – Non-Destructive Evaluation (NDE) R&D Roadmap for Determining Remaining Useful Life of Aging Cables in Nuclear Power Plants  

SciTech Connect (OSTI)

The purpose of the non-destructive evaluation (NDE) R&D Roadmap for Cables is to support the Materials Aging and Degradation (MAaD) R&D pathway. The focus of the workshop was to identify the technical gaps in detecting aging cables and predicting their remaining life expectancy. The workshop was held in Knoxville, Tennessee, on July 30, 2012, at Analysis and Measurement Services Corporation (AMS) headquarters. The workshop was attended by 30 experts in materials, electrical engineering, U.S. Nuclear Regulatory Commission (NRC), U.S. Department of Energy (DOE) National Laboratories (Oak Ridge National Laboratory, Pacific Northwest National Laboratory, Argonne National Laboratory, and Idaho National Engineering Laboratory), NDE instrumentation development, universities, commercial NDE services and cable manufacturers, and Electric Power Research Institute (EPRI). The motivation for the R&D roadmap comes from the need to address the aging management of in-containment cables at nuclear power plants (NPPs).

Simmons, Kevin L.; Ramuhalli, Pradeep; Brenchley, David L.; Coble, Jamie B.; Hashemian, Hash; Konnik, Robert; Ray, Sheila

2012-09-14T23:59:59.000Z

6

Light Water Reactor Sustainability Program - Non-Destructive Evaluation  

Broader source: Energy.gov (indexed) [DOE]

Program - Non-Destructive Program - Non-Destructive Evaluation R&D Roadmap for Determining Remaining Useful Life of Aging Cables in Nuclear Power Plants Light Water Reactor Sustainability Program - Non-Destructive Evaluation R&D Roadmap for Determining Remaining Useful Life of Aging Cables in Nuclear Power Plants The purpose of the non-destructive evaluation (NDE) R&D Roadmap for Cables is to support the Materials Aging and Degradation (MAaD) R&D pathway. A workshop was held to gather subject matter experts to develop the NDE R&D Roadmap for Cables. The focus of the workshop was to identify the technical gaps in detecting aging cables and predicting their remaining life expectancy. The workshop was held in Knoxville, Tennessee, on July 30, 2012, at Analysis and Measurement Services Corporation (AMS) headquarters.

7

EPRI steam turbine and generator NDE, life assessment, and maintenance workshop. [Electric Power Research Institute (EPRI), NonDestructive Evaluation (NDE)  

SciTech Connect (OSTI)

On July 16--19, 1991, the EPRI NDE Center hosted the second EPRI Steam Turbine and Generator NDE, Life Assessment and Maintenance Workshop. This workshop was co-sponsored by the Nuclear Power and the Generation and Storage Divisions of EPRI. Attendees represented all sectors of the industry including utilities, equipment manufacturers, forging suppliers, service organizations, government organizations, insurancecarriers, and consultants from the United States and abroad. Domestic utility presence was again strong, with 105 representatives from 44 utilities in attendance. Australia, Canada, England, Finland, France, Germany, Italy, Japan, Korea, New Zealand, Spain, Sweden and Switzerland were represented in the international contingent. A key and integral part of the workshop was a vendor equipment fair, in which some 23 organizations displayed and demonstrated equipment and services that they offer. Formal presentation of 53 technical papers made up the technical portion of the agenda, which also included two breakout discussion sessions on topical subjects. To provide optimum opportunity for participants to hear all presentations on closely related topics, the sessions were set such that a NDE session ran parallel to the life assessment session. The first NDE session included turbine related topics while the first life assessment session addressed generator issues. The last sessions of the workshop were just reversed with turbine topics being addressed in the life assessment session while generator issues were presented in the NDE session. Presentations on maintenance topics and on monitoring and diagnostics topics were also presented in parallel sessions. These proceedings contain the texts of the papers presented at the workshop. Individual papers in indexed separately.

Nottingham, L.D.; Sabourin, P.F.

1992-10-01T23:59:59.000Z

8

EVALUATION OF TRANSPORTATION OPTIONS FOR INTERMEDIATE NON DESTRUCTIVE EXAMINATIONS  

SciTech Connect (OSTI)

Idaho National Laboratory (INL) shipments of irradiated experiments from the Advanced Test Reactor (ATR) to the Hot Fuels Examination Facility (HFEF) have historically been accomplished using the General Electric Model 2000 (GE 2000) Type B shipping container. Battelle Energy Alliance (BEA) concerns regarding the future availability and leasing and handling costs associated with the GE 2000 cask have warranted an evaluation of alternative shipping options. One or more of these shipping options may be utilized to perform non destructive examinations (NDE) such as neutron radiography and precision gamma scans of irradiated experiments at HFEF and then return the experiments to ATR for further irradiation, hereafter referred to as “intermediate NDE

Case, Susan; Hoggard, Gary

2014-07-01T23:59:59.000Z

9

IRLab Non-Destructive Testing  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Non-Destructive Testing Non-Destructive Testing The IRLab uses infrared thermography to perform various Non-Destructive Evaluations (NDE). Efforts include basic research and in-house support for LBNL fabrication projects. An example of an in-house NDE project is work recently conducted for the Atlas project on a cooled support for a detector that is made of carbon-carbon composites. The NDE research is being carried out as part of a project know as "NDE Techniques for On-Line Inspection of Automotive Structures with Adhesive Joints" for USCAR and the Office of Transportation Technologies, US-DOE nde_experiment.JPG (9675 bytes) This image depicts the setup for infrared testing of lap joints. The images below are of a such a lap joint with a three poor spot welds in the middle.

10

Embedded Non-destructive Evaluation for Structural Health Monitoring, Damage Detection, and Failure  

E-Print Network [OSTI]

in an emerging new technology: embedded ultrasonic non-destruc- tive evaluation (NDE). Embedded ultrasonic NDE to determine its current state of structural health. The enabling element of embedded ultra- sonic NDE NDE results are contrasted with embedded NDE results. Detection of cracks, disbonds, delaminations

Giurgiutiu, Victor

11

Evaluation of component integrity by non-destructive testing  

Science Journals Connector (OSTI)

Non-destructive methods achieve an ever-increasing role in the inspection of structural components. However, restricting NDT to its classical domain, the detection of flaws, one takes only limited advantage of its possibilities. Non-destructive testing pro- vides the ability to differentiate different structures of materials or to measure internal and induced stresses, thus providing data for the calculation of reliability and potential lifetime. To reach this goal, NDT data must be combined with results of destructive testing. Here, a closer monitoring of fast processes like crack propagation, especially under an impact load, may provide a better understanding of materials behaviour. Again, inertia-free NDT methods with high time-resolution are especially suited to the task. The potentials of NDT are further increased by the development of automatic data acquisition and processing. Computerization provides highly discriminative evaluation methods, as cross-correlation or cluster analysis. To demonstrate the potentials of NDT, a variety of examples will be presented, including fast sensitive tests which allow a more accurate localization and appropriate description of flaws, structures and stresses by different optical, electromagnetic, radiographic and acoustic methods.

H.-A. Crostack; W. Reimers

1988-01-01T23:59:59.000Z

12

PREDICTION OF DISSOLVER LIFETIMES THROUGH NON-DESTRUCTIVE EVALUATION AND LABORATORY TESTING  

SciTech Connect (OSTI)

Non-destructive evaluation was used as the primary method of monitoring the corrosion degradation of nuclear material dissolvers and assessing the remaining lifetimes. Materials were typically processed in nitric acid based (4-14M) solutions containing fluoride concentrations less than 0.2 M. The primary corrosion issue for the stainless steel dissolvers is the occurrence of localized corrosion near the tank bottom and the heat affected zones of the welds. Laboratory data for a range of operational conditions, including solution chemistry and temperature, was used to assess the impact of processing changes on the dissolver corrosion rate. Experimental and NDE-based general corrosion rates were found to be in reasonable agreement for standard dissolution chemistries consisting of nitric acid with fluorides and at temperatures less than 95 C. Greater differences were observed when chloride was present as an impurity and temperatures exceeded 100 C.

Mickalonis, J.; Woodsmall, T.; Hinz, W.; Edwards, T.

2011-10-03T23:59:59.000Z

13

Infrared non-destructive evaluation method and apparatus  

DOE Patents [OSTI]

A method of nondestructive evaluation and related system. The method includes arranging a test piece (14) having an internal passage (18) and an external surface (15) and a thermal calibrator (12) within a field of view (42) of an infrared sensor (44); generating a flow (16) of fluid characterized by a fluid temperature; exposing the test piece internal passage (18) and the thermal calibrator (12) to fluid from the flow (16); capturing infrared emission information of the test piece external surface (15) and of the thermal calibrator (12) simultaneously using the infrared sensor (44), wherein the test piece infrared emission information includes emission intensity information, and wherein the thermal calibrator infrared emission information includes a reference emission intensity associated with the fluid temperature; and normalizing the test piece emission intensity information against the reference emission intensity.

Baleine, Erwan; Erwan, James F; Lee, Ching-Pang; Stinelli, Stephanie

2014-10-21T23:59:59.000Z

14

Non-Destructive Examination Independent Review  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

webcast Webcast Waiver Contacts Home webcast Webcast Waiver Contacts Home The Department of Energy is hosting a Non-Destructive Examination Independent Review in Atlanta, GA The Independent Review of Non-Destructive Examination Techniques and Methods for Application to High Level Waste Tank Storage will be conducted to evaluate recent developments in NDE equipment and how they might be applied to the unique conditions of high-level waste tanks. This review will provide a forum for experts from academia and industry to provide recommendations for cost effective NDE of both the tank steel and concrete materials. Participation in the Review is open to anyone interested in NDE techniques for waste tanks, including interested participants from industry and vendors, who will be invited to make presentations of recent improvements to equipment. The Review will also present a platform for discussion of the underlying philosophy of the use of NDE in an in-service inspection program. The use of statistical methods to evaluate the accuracy and disposition the results will also be discussed. From this, recommendations will be made for the NDE inspection program.

15

Non-destructive evaluation of degradation in EB-PVD thermal barrier coatings by infrared reflectance spectroscopy  

Science Journals Connector (OSTI)

At room temperature and atmospheric conditions infrared reflectance spectroscopy and X-ray diffraction were employed for the detection of the phase transformation and residual stress within thermal barrier coatings (TBC). The TBC's samples initially consisted of the porous ceramic topcoat deposited by electron beam plasma vapor deposition a bond coat and a superalloy substrate. Reflectance spectroscopy scans were performed from 7497 cm?1 to 68 cm?1 to analysis the fingerprint region as well as the chemical bonding region. These regions should indicate if a detectable change within the TBC response is a result of thermal degradation of the microstructure and the changes in yttrium dispersion throughout the yttrium stabilized zirconium. The thermal degradation was induced by thermal cycling the samples to 1100° C and then cooling them in an atmospheric environment. X-ray diffraction was also used to detect the phase composition within the TBC samples and see if either would clearly identify failure prior to actual spallation. The eventual measurability and quantify-ability of the phase changes within the TBC's may be used as an effective non-destructive evaluation (NDE) technique that would allow personnel in the field to know when servicing of the turbine blade was necessary.

Adam T. Cooney

2013-01-01T23:59:59.000Z

16

Non-destructive evaluation of degradation in EB-PVD thermal barrier coatings by infrared reflectance spectroscopy  

SciTech Connect (OSTI)

At room temperature and atmospheric conditions infrared reflectance spectroscopy and X-ray diffraction were employed for the detection of the phase transformation and residual stress within thermal barrier coatings (TBC). The TBC's samples initially consisted of the porous ceramic topcoat deposited by electron beam plasma vapor deposition, a bond coat and a superalloy substrate. Reflectance spectroscopy scans were performed from 7497 cm{sup -1} to 68 cm{sup -1} to analysis the fingerprint region as well as the chemical bonding region. These regions should indicate if a detectable change within the TBC response is a result of thermal degradation of the microstructure and the changes in yttrium dispersion throughout the yttrium stabilized zirconium. The thermal degradation was induced by thermal cycling the samples to 1100 Degree-Sign C and then cooling them in an atmospheric environment. X-ray diffraction was also used to detect the phase composition within the TBC samples and see if either would clearly identify failure prior to actual spallation. The eventual measurability and quantify-ability of the phase changes within the TBC's may be used as an effective non-destructive evaluation (NDE) technique that would allow personnel in the field to know when servicing of the turbine blade was necessary.

Flattum, Richard Y.; Cooney, Adam T. [Air Force Research Laboratory, Materials and Manufacturing Directorate, NonDestructive Evaluation Branch, Wright-Patterson AFB, OH (United States)

2013-01-25T23:59:59.000Z

17

Evaluation of Mechanical Properties of Nuclear Materials Using Non-Destructive Ball Indentation Technique  

SciTech Connect (OSTI)

Integrity of structural components depends on the deformation and fracture behavior of materials. For evaluating the material condition in-service, it is generally not feasible or practical or advisable to cut samples from operating structures. Non-destructive testing (NDT) techniques are required to evaluate the mechanical properties. Although several NDT techniques such as ultrasound, magnetic strength, Barkhausen noise, microhardness etc., are employed for estimating the mechanical property degradation, these methodologies are generally empirical and indirect. Automated Ball Indentation (ABI) is a non-destructive testing technique for direct measurement of mechanical and fracture properties of metallic engineering materials. Because of the small area over which the test is carried out, it is possible to determine point to point variations in the mechanical and fracture properties, such as those that exist in weldments. Although ABI technique is non-intrusive, it is a state-of-the-art mechanical test that measures directly the current/local deformation behavior of the material. In this paper, we present results from studies on the application of ABI technique to determine tensile and fracture properties of ferritic steels, an austenitic stainless steel, a nickel base superalloy and Zircaloy in different thermo-mechanical conditions. The effects of aging and cold work on these properties were determined from the ABI tests. Gradients in mechanical properties of ferritic steel welds, particularly in the narrow heat-affected zone, were clearly established. ABI technique was found to be useful in determining the anisotropy in the tensile properties of Zircaloy cladding tubes. The technique has potential as a non-destructive method for assessing structural integrity of aged components. (authors)

Mathew, M.D. [Indira Gandhi Center for Atomic Research, Kalpakkam, Tamil Nadu, 603102 (India); Linga Murty, K. [North Carolina State University, Nuclear Engineering Department, Raleigh, NC 27695-7909 (United States)

2002-07-01T23:59:59.000Z

18

MICROWAVE-BASED NDE OF FRP-JACKETED CONCRETE STRUCTURES  

E-Print Network [OSTI]

MICROWAVE-BASED NDE OF FRP-JACKETED CONCRETE STRUCTURES Yoo Jin Kim, Franco De Flaviis University are presented in this paper. KEY WORDS: Microwave, Non-Destructive Evaluation (NDE), FRP Jacket, Imaging Technol not be visually observed. Various nondestructive evaluation (NDE) techniques have been studied to detect cracks

De Flaviis, Franco

19

QUANTITATIVE NON-DESTRUCTIVE EVALUATION (QNDE) OF THE ELASTIC MODULI OF POROUS TIAL ALLOYS  

SciTech Connect (OSTI)

The elastic moduli of {gamma}-TiA1 were studied in porous samples consolidated by various techniques e.g. cold isostatic pressing (CIP), pressure-less sintering, or hot isostatic pressing (HIP). Porosity linearly affects the dynamic elastic moduli of samples. The results indicate that the sound wave velocities and the elastic moduli affected by the processing route and depend not only on the attained density but also on the consolidation temperature. In this paper we show that there is linear correlation between the shear and the longitudinal sound velocities in porous TiA1. This opens the way to use a single sound velocity as a tool for quantitative non-destructive evaluation (QNDE) of porous TiA1 alloys. Here we demonstrate the applicability of an equation derived from the elastic theory and used previously for porous cubic metals.

Yeheskel, O. [NRCN, PO Box 9001, Beer Sheva, 84190 (Israel)

2008-02-28T23:59:59.000Z

20

System and method for non-destructive evaluation of surface characteristics of a magnetic material  

DOE Patents [OSTI]

A system and a related method for non-destructive evaluation of the surface characteristics of a magnetic material. The sample is excited by an alternating magnetic field. The field frequency, amplitude and offset are controlled according to a predetermined protocol. The Barkhausen response of the sample is detected for the various fields and offsets and is analyzed. The system produces information relating to the frequency content, the amplitude content, the average or RMS energy content, as well as count rate information, for each of the Barkhausen responses at each of the excitation levels applied during the protocol. That information provides a contiguous body of data, heretofore unavailable, which can be analyzed to deduce information about the surface characteristics of the material at various depths below the surface.

Jiles, David C. (Ames, IA); Sipahi, Levent B. (Ames, IA)

1994-05-17T23:59:59.000Z

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

EROBOT : a second-generation NDE inspection robot.  

E-Print Network [OSTI]

??Since the early 1950's, Non-Destructive Evaluation (NDE) has been revolutionizing all fields of industry but particularly production and maintenance. For the manufacturing sector, the widespread… (more)

Baldwin, Ian Alan

2007-01-01T23:59:59.000Z

22

Review of progress in quantitative NDE. [Nondestructive Evaluation (NDE)  

SciTech Connect (OSTI)

This booklet is composed of abstracts from papers submitted at a meeting on quantitative NDE. A multitude of topics are discussed including analysis of composite materials, NMR uses, x-ray instruments and techniques, manufacturing uses, neural networks, eddy currents, stress measurements, magnetic materials, adhesive bonds, signal processing, NDE of mechanical structures, tomography,defect sizing, NDE of plastics and ceramics, new techniques, optical and electromagnetic techniques, and nonlinear techniques. (GHH)

Not Available

1991-01-01T23:59:59.000Z

23

Non Destructive Evaluation (NDE) Methods for Certification and Production/Performance Monitoring of Composite Tanks  

Broader source: Energy.gov [DOE]

These slides were presented at the International Hydrogen Fuel and Pressure Vessel Forum on September 27 – 29, 2010, in Beijing, China.

24

Applications of TAP-NDE technique to non-contact ultrasonic inspection in tubulars  

E-Print Network [OSTI]

The possibility and feasibility of experimental detection of localized defects in tubes using laser-induced ultrasonic wave approach through Thermo Acousto Photonic Non Destructive Evaluation (TAP-NDE) and Signal processing through wavelet transform...

Baltazar-Lopez, Martin Eduardo

2005-02-17T23:59:59.000Z

25

Non-destructive evaluation means and method of flaw reconstruction utilizing an ultrasonic multi-viewing transducer data acquistion system  

DOE Patents [OSTI]

A multi-viewing ultrasound transducer acquisition system for non-destructive evaluation, flaw detection and flaw reconstruction in materials. A multiple transducer assembly includes a central transducer surrounded by a plurality of perimeter transducers, each perimeter transducer having an axis of transmission which can be angularly oriented with respect to the axis of transmission of the central transducer to intersect the axis of transmission of the central transducer. A control apparatus automatically and remotely positions the transducer assembly with respect to the material by a positioning apparatus and adjusts the pe GRANT REFERENCE This invention was conceived and reduced to practice at least in part under a grant from the Department of Energy under Contract No. W-7407-ENG-82.

Thompson, Donald O. (Ames, IA); Wormley, Samuel J. (Ames, IA)

1989-03-28T23:59:59.000Z

26

A Load-based Micro-indentation Technique for Mechanical Property and NDE Evaluation  

SciTech Connect (OSTI)

A load-based micro-indentation technique has been developed for evaluating mechanical properties of materials. Instead of using measured indentation depth or contact area as a necessary parameter, the new technique is based on the indentation load, coupled with a multiple-partial unloading procedure for mechanical property evaluation. The proposed load-based micro-indentation method is capable of determining Young’s modulus of metals, superalloys, and single crystal matrices, and stiffness of coated material systems with flat, tubular, or curved architectures. This micro-indentation technique can be viewed as a viable non-destructive evaluation (NDE) technique for determining as-manufactured and process-exposed metal, superalloy, single crystal, and TBC-coated material properties. Based on this technique, several bond coated substrates were tested at various stages of thermal cycles. The time-series evaluation of test material surface stiffness reveals the status of coating strength without any alternation of the coating surface, making it a true time-series NDE investigation. The microindentation test results show good correlation with post mortem microstructural analyses. This technique also shows promise for the development of a portable instrument for on-line, in-situ NDE and mechanical properties measurement of structural components.

Bruce S. Kang; Chuanyu Feng; Jared M. Tannenbaum; M.A. Alvin

2009-06-04T23:59:59.000Z

27

Need for Nondestructive Evaluation (NDE) in the Detection of Decay in Structures1  

E-Print Network [OSTI]

Need for Nondestructive Evaluation (NDE) in the Detection of Decay in Structures1 W. Wayne Wilcox existing technologies. Sometimes, nondestructive evaluation (NDE) is not needed to determine

Standiford, Richard B.

28

Waterless Coupling of Ultrasound from Planar Contact Transducers to Curved and Irregular Surfaces during Non-destructive Ultrasonic Evaluations  

SciTech Connect (OSTI)

The Applied Physics group at the Pacific The Applied Physics group at the Pacific Northwest National Laboratory (PNNL) in Richland, WA has evaluated a method for waterless/liquidless coupling of ultrasonic energy from planar ultrasonic contact transducers to irregular test surfaces for ultrasonic non-destructive evaluation applications. Dry couplant material placed between a planar transducer face and a curved or uneven steel or plastic surface allows for effective sound energy coupling and preserves the integrity of the planar transducer sound field by serving as an acoustic impedance matching layer, providing good surface area contact between geometrically dissimilar surfaces and conforming to rough and unsmooth surfaces. Sound fields radiating from planar ultrasonic contact transducers coupled to curved and uneven surfaces using the dry coupling method were scanned and mapped using a Pinducer receiver connected to a raster scanner. Transducer sound field coverage at several ultrasonic frequencies and several distances from the transducer contact locations were found to be in good agreement with theoretical beam divergence and sound field coverage predictions for planar transducers coupled to simple, planar surfaces. This method is valuable for applications that do not allow for the use of traditional liquid-based ultrasonic couplants due to the sensitivity of the test materials to liquids and for applications that might otherwise require curved transducers or custom coupling wedges. The selection of dry coupling material is reported along with the results of theoretical sound field predictions, the laboratory testing apparatus and the empirical sound field data.

Denslow, Kayte M.; Diaz, Aaron A.; Jones, Anthony M.; Meyer, Ryan M.; Cinson, Anthony D.; Wells, Mondell D.

2012-04-30T23:59:59.000Z

29

Portable microwave instrument for non-destructive evaluation of structural characteristics  

DOE Patents [OSTI]

A portable microwave instrument for evaluating characteristics of a structural member includes a source of microwave energy, a transmitter coupled to the source of microwave energy for transmitting a microwave signal at the structural member, and a receiver positioned on the same side of the structural member as the transmitter and being disposed to receive a microwave signal reflected by the structural member. A phase angle difference is determined between the transmitted microwave signal and the received microwave signal using a signal splitter and a balanced mixer. The difference in phase angle varies in accordance with differences in size, shape and locations of constituent materials within the structural member.

Bible, Don W. (Clinton, TN); Crutcher, Richard I. (Knoxville, TN); Sohns, Carl W. (Oak Ridge, TN); Maddox, Stephen R. (Loudon, TN)

1995-01-01T23:59:59.000Z

30

Risk assessment of turbine rotor failure using probabilistic ultrasonic non-destructive evaluations  

SciTech Connect (OSTI)

The study presents a method and application of risk assessment methodology for turbine rotor fatigue failure using probabilistic ultrasonic nondestructive evaluations. A rigorous probabilistic modeling for ultrasonic flaw sizing is developed by incorporating the model-assisted probability of detection, and the probability density function (PDF) of the actual flaw size is derived. Two general scenarios, namely the ultrasonic inspection with an identified flaw indication and the ultrasonic inspection without flaw indication, are considered in the derivation. To perform estimations for fatigue reliability and remaining useful life, uncertainties from ultrasonic flaw sizing and fatigue model parameters are systematically included and quantified. The model parameter PDF is estimated using Bayesian parameter estimation and actual fatigue testing data. The overall method is demonstrated using a realistic application of steam turbine rotor, and the risk analysis under given safety criteria is provided to support maintenance planning.

Guan, Xuefei; Zhang, Jingdan; Zhou, S. Kevin [Siemens Corporation, Corporate Technology, 755 College Rd. E., Princeton NJ 08540 (United States); Rasselkorde, El Mahjoub; Abbasi, Waheed A. [Siemens Energy Inc., 841 Old Frankstown Road, Pittsburgh PA 15239 (United States)

2014-02-18T23:59:59.000Z

31

QUANTITATIVE EVALUATION OF NEURAL NETWORKS FOR NDE APPLICATIONS USING THE ROC CURVE  

E-Print Network [OSTI]

1 QUANTITATIVE EVALUATION OF NEURAL NETWORKS FOR NDE APPLICATIONS USING THE ROC CURVE Mackay A. E waveform identification in NDE equipment, and to compare neural network performance with other methods. NDE-based scheme in classifying real-world eddy current data collected from an aircraft wheel NDE system. KEY WORDS

MacIver, Malcolm A.

32

MULTIPLE SENSOR PERIODIC NONDESTRUCTIVE EVALUATION OF A CONCRETE BRIDGE DECK  

E-Print Network [OSTI]

decades, various non- destructive evaluation (NDE) techniques and methods emerged; some of them have been of the art and advanced methods at the US FHWA NDE Center. 2. BRIEF INTRODUCTION OF INVOLVED NONDESTRUCTIVE, GPR, anode ladder sensor and ultrasonic methods are primary NDE and monitoring methods that were

Huston, Dryver R.

33

DIVISION & TECHNICAL COMMITTEE MEMBERSHIP: -Division Chair of the ASME NDE (Nondestructive Evaluation) Division, 2003-2005  

E-Print Network [OSTI]

DIVISION & TECHNICAL COMMITTEE MEMBERSHIP: - Division Chair of the ASME NDE (Nondestructive Evaluation) Division, 2003-2005 - Member of the Executive Committee of the ASME NDE Engineering Division, 1997-present - Secretary and Vice-Chairman of the ASME NDE Division from 2001 to 2003 - Program

Wong, Pak Kin

34

Journal of Nondestructive Evaluation, Vol. 7, ?Cos.3/4, 1988 Ultrasonic NDE of Solid-State Bonds  

E-Print Network [OSTI]

Journal of Nondestructive Evaluation, Vol. 7, ?Cos.3/4, 1988 Ultrasonic NDE of Solid-State Bonds, 1988 This paper discusses a number of special ultrasonic NDE problems of particular interest to inertia

Nagy, Peter B.

35

Non-destructive inspection protocol for reinforced concrete barriers and bridge railings  

SciTech Connect (OSTI)

Reinforced concrete highway barriers and bridge railings serve to prevent errant vehicles from departing the travel way at grade separations. Despite the important role that they play in maintaining safety and their ubiquitous nature, barrier inspection rarely moves beyond visual inspection. In August 2008, a tractor-trailer fatally departed William Preston Lane, Jr. Memorial Bridge after it dislodged a section of the bridge barrier. Investigations following the accident identified significant corrosion of the anchor bolts attaching the bridge railing to the bridge deck. As a result of the information gathered during its investigation of the accident, the National Transportation Safety Board (NTSB) made recommendations to the Federal Highway Administration concerning Non-Destructive Evaluation (NDE) of concrete bridge railings. The Center for nondestructive evaluation (NDE) at Turner Fairbank Highway Research Center in McLean, VA is currently evaluating feasibility of using four technologies - ground penetrating radar (GPR), ultrasonic pulse-echo, digital radiography and infrared thermal imaging methods to develop bridge inspection methods that augment visual inspections, offer reliable measurement techniques, and are practical, both in terms of time and cost, for field inspection work. Controlled samples containing predefined corrosion levels in reinforcing steel were embedded at barrier connection points for laboratory testing. All four NDE techniques were used in the initial phase I testing. An inspection protocol for detecting and measuring the corrosion of reinforced steel embedded in the anchorage system will be developed as part of phase II research. The identified technologies shall be further developed for field testing utilizing a structure with a barrier in good condition and a structure with a barrier in poor condition.

Chintakunta, Satish R. [Engineering and Software Consultants, Inc., 14123 Robert Paris Ct., Chantilly, VA 20151 (United States); Boone, Shane D. [Federal Highway Administration, Turner Fairbank Highway Research Center, 6300 Georgetown Pike, McLean, VA 22101 (United States)

2014-02-18T23:59:59.000Z

36

Assessment of FRP composite strengthened reinforced concrete bridge structures at the component and systems level through progressive damage and Non-Destructive Evaluation (NDE)  

E-Print Network [OSTI]

Reinforced Polymer Composites for Construction - State-of-Review,” ASCE Journal of Composites for Construction, V. 6,Slabs,” ASCE Journal of Composites for Construction, V. 5,

Ghosh, Kumar Kanti

2006-01-01T23:59:59.000Z

37

Non-Destructive Testing A Developing Tool in Science and Engineering  

SciTech Connect (OSTI)

Non-destructive testing (NDT), sometimes also known as non-destructive inspection (NDI) or non-destructive examination (NDE), has been applied to solve a wide range of science and industry problems including construction, aerospace, nuclear engineering, manufacturing, space exploration, art objects, forensic studies, biological and medical fields, etc. Without any permanent changing or alteration of testing objects, NDT methods provide great advantages such as increased testing reliability, efficiency, and safety, as well as reduced time and cost. Since the second half of the 20th century, NDT technology has seen significant growth. Depending on the physical properties being measured, NDT techniques can be classified into several branches. This article will provide a brief overview of commonly used NDT methods and their up-to-date progresses including optical examination, radiography, acoustic emission, ultrasonic testing and eddy current testing. For extended reviews on many presently used NDT methods, please refer to articles by Mullins [1, 2].

Lin, Lianshan [ORNL

2013-01-01T23:59:59.000Z

38

Non-Destructive Neutron Imaging to Analyze Particulate Filters...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Neutron Imaging to Analyze Particulate Filters Non-Destructive Neutron Imaging to Analyze Particulate Filters Non-destructive, non-invasive imaging is being employed in the...

39

Non-Destructive Analysis Calibration Standards for Gaseous Diffusion...  

Broader source: Energy.gov (indexed) [DOE]

Non-Destructive Analysis Calibration Standards for Gaseous Diffusion Plant (GDP) Decommissioning Non-Destructive Analysis Calibration Standards for Gaseous Diffusion Plant (GDP)...

40

ANALYSIS OF EMERGING NDE TECHNIQUES: METHODS FOR EVALUATING AND IMPLEMENTING CONTINUOUS ONLINE MONITORING  

SciTech Connect (OSTI)

One of the goals of the program for the proactive management of materials degradation (PMMD) is to manage proactively the in-service degradation of metallic components in aging NPPs. As some forms of degradation, such as stress corrosion cracking, are characterized by a long initiation time followed by a rapid growth phase, new inspection or monitoring technologies may be required. New nondestructive evaluation (NDE) techniques that may be needed include techniques to find stress corrosion cracking (SCC) precursors, on-line monitoring techniques to detect cracks as they initiate and grow, as well as advances in NDE technologies. This paper reports on the first part of the development of a methodology to determine the effectiveness of these emerging NDE techniques for managing metallic degradation. This methodology will draw from experience derived from evaluating techniques that have "emerged" in the past. The methodology will follow five stages: a definition of inspection parameters, a technical evaluation, laboratory testing, round robin testing, and the design of a performance demonstration program. This methodology will formalize the path taken for previous techniques and set a predictable course for future NDE techniques. This paper then applies the expert review section of the methodology to the acoustic emission technique to evaluate the use of acoustic emission in performing continuous online monitoring of reactor components.

Cumblidge, Stephen E.; Doctor, Steven R.; Bond, Leonard J.; Taylor, Theodore T.; Lupold, Timothy R.; Hull, Amy; Malik, Shah

2009-08-05T23:59:59.000Z

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Stress Corrosion Cracking and Non-Destructive Examination of Dissimilar Metal Welds and Alloy 600  

SciTech Connect (OSTI)

The United States Nuclear Regulatory Commission (USNRC) has conducted research since 1977 in the areas of environmentally assisted cracking and assessment and reliability of non-destructive examination (NDE). Recent occurrences of cracking in Alloy 82/182 welds and Alloy 600 base metal at several domestic and overseas plants have raised several issues relating to both of these areas of NRC research. The occurrences of cracking were identified by the discovery of boric acid deposits resulting from through-wall cracking in the primary system pressure boundary. Analyses indicate that the cracking has occurred due to primary water stress corrosion cracking (PWSCC) in Alloy 82/182 welds. This cracking has occurred in two different locations: in hot leg nozzle-to-safe end welds and in control rod drive mechanism (CRDM) nozzle welds. The cracking associated with safe-end welds is important due to the potential for a large loss of reactor coolant inventory, and the cracking of CRDM nozzle base metal and welds, particularly circumferential cracking of CRDM nozzle base metal, is important due to the potential for a control rod to eject resulting in a loss of coolant accident. The industry response in the U.S. to this cracking is being coordinated through the Electric Power Research Institute's Materials Reliability Project (EPRI-MRP) in a comprehensive, multifaceted effort. Although the industry program is addressing many of the issues raised by these cracking occurrences, confirmatory research is necessary for the staff to evaluate the work conducted by industry groups. Several issues requiring additional consideration regarding the generic implications of these isolated events have been identified. This paper will discuss the recent events of significant cracking in domestic and foreign plants, discuss the limitations of NDE in detecting SCC, identify deficiencies in information available in this area, discuss the USNRC approach to address these issues, and discuss the development of an international cooperative effort. (authors)

Jackson, Deborah A. [U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001 (United States)

2002-07-01T23:59:59.000Z

42

Method for non-destructive testing  

DOE Patents [OSTI]

Non-destructive testing method may include providing a source material that emits positrons in response to bombardment of the source material with photons. The source material is exposed to photons. The source material is positioned adjacent the specimen, the specimen being exposed to at least some of the positrons emitted by the source material. Annihilation gamma rays emitted by the specimen are detected.

Akers, Douglas W. (Idaho Falls, ID)

2011-08-30T23:59:59.000Z

43

Non-Destructive Inspection of Adhesive Bonds in Metal-Metal Joints...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. lm15moore.pdf More Documents & Publications NonDestructive Inspection of Adhesive Bonds...

44

NON-DESTRUCTIVE SOIL CARBON ANALYZER.  

SciTech Connect (OSTI)

This report describes the feasibility, calibration, and safety considerations of a non-destructive, in situ, quantitative, volumetric soil carbon analytical method based on inelastic neutron scattering (INS). The method can quantify values as low as 0.018 gC/cc, or about 1.2% carbon by weight with high precision under the instrument's configuration and operating conditions reported here. INS is safe and easy to use, residual soil activation declines to background values in under an hour, and no radiological requirements are needed for transporting the instrument. The labor required to obtain soil-carbon data is about 10-fold less than with other methods, and the instrument offers a nearly instantaneous rate of output of carbon-content values. Furthermore, it has the potential to quantify other elements, particularly nitrogen. New instrumentation was developed in response to a research solicitation from the U.S. Department of Energy (DOE LAB 00-09 Carbon Sequestration Research Program) supporting the Terrestrial Carbon Processes (TCP) program of the Office of Science, Biological and Environmental Research (BER). The solicitation called for developing and demonstrating novel techniques for quantitatively measuring changes in soil carbon. The report includes raw data and analyses of a set of proof-of-concept, double-blind studies to evaluate the INS approach in the first phase of developing the instrument. Managing soils so that they sequester massive amounts of carbon was suggested as a means to mitigate the atmospheric buildup of anthropogenic CO{sub 2}. Quantifying changes in the soils' carbon stocks will be essential to evaluating such schemes and documenting their performance. Current methods for quantifying carbon in soil by excavation and core sampling are invasive, slow, labor-intensive and locally destroy the system being observed. Newly emerging technologies, such as Laser Induced Breakdown Spectroscopy and Near-Infrared Spectroscopy, offer soil-carbon analysis; however, these also are invasive and destructive techniques. The INS approach permits quantification in a relatively large volume of soil without disrupting the measurement site. The technique is very fast and provides nearly instantaneous results thereby reducing the cost, and speeding up the rate of analysis. It also has the potential to cover large areas in a mobile scanning mode. These capabilities will significantly advance the tracking carbon sequestration and offer a tool for research in agronomy, forestry, soil ecology and biogeochemistry.

WIELOPOLSKI,L.MITRA,S.HENDREY,G.ORION,I.ROGERS,H.TORBERT,A.PRIOR,S.RUNION,B.

2004-02-01T23:59:59.000Z

45

Nondestructive Evaluation (NDE) Minor The NDE Minor at Iowa State University is a unique opportunity to get a multi-disciplinary engineering qualification in the  

E-Print Network [OSTI]

an approved NDE Topic (e.g., AerE/EE/EM/MatE/ME) MSE/EM 550 Fundamentals of Nondestructive Evaluation (4Cr.-Spring) Supporting Courses (2 needed for 6 credits) AerE 321 Flight Structures Analysis and Laboratory (3Cr.-Fall) AerE 421 Advanced Flight Structures (3Cr.-Spring) AerE 422 Aeroelasticity (3Cr.-Alt. Fall) AerE 423

Lin, Zhiqun

46

Non-destructive testing method and apparatus  

DOE Patents [OSTI]

Non-destructive testing apparatus may comprise a photon source and a source material that emits positrons in response to bombardment of the source material with photons. The source material is positionable adjacent the photon source and a specimen so that when the source material is positioned adjacent the photon source it is exposed to photons produced thereby. When the source material is positioned adjacent the specimen, the specimen is exposed to at least some of the positrons emitted by the source material. A detector system positioned adjacent the specimen detects annihilation gamma rays emitted by the specimen. Another embodiment comprises a neutron source and a source material that emits positrons in response to neutron bombardment.

Akers, Douglas W. (Idaho Falls, ID)

2011-10-04T23:59:59.000Z

47

Non-Destructive Analysis Calibration Standards for Gaseous Diffusion Plant  

Broader source: Energy.gov (indexed) [DOE]

Non-Destructive Analysis Calibration Standards for Gaseous Non-Destructive Analysis Calibration Standards for Gaseous Diffusion Plant (GDP) Decommissioning Non-Destructive Analysis Calibration Standards for Gaseous Diffusion Plant (GDP) Decommissioning The decommissioning of Gaseous Diffusion Plant facilities requires accurate, non-destructive assay (NDA) of residual enriched uranium in facility components for safeguards and nuclear criticality safety purposes. Current practices used to perform NDA measurements frequently have poorly defined uncertainties due to multiple factors. Working reference material (WRM) standards and container-specific surrogates are required to verify and validate NDA methods used to support characterization of gaseous diffusion equipment within the D&D project. Because working reference

48

Non-Destructive Neutron Imaging to Analyze Particulate Filters  

Broader source: Energy.gov [DOE]

Non-destructive, non-invasive imaging is being employed in the laboratory to understand how soot, ash, and catalytic washcoat are deposited within a diesel particulate filter.

49

INCREMENTAL LEARNING OF NDE SIGNALS WITH CONFIDENCE ESTIMATION  

E-Print Network [OSTI]

INCREMENTAL LEARNING OF NDE SIGNALS WITH CONFIDENCE ESTIMATION Robi Polikar Department evaluation (NDE) applications resort to pattern recognition and machine learning algorithms for automated classification and characterization of NDE signals. Applications of such systems include defect identification

Polikar, Robi

50

NDE of Concrete Structures Strengthened with FRP Using Infrared Thermography  

E-Print Network [OSTI]

NDE of Concrete Structures Strengthened with FRP Using Infrared Thermography Monica A. STARNES that infrared thermography is a promising nondestructive evaluation (NDE) method considering testing speed

Entekhabi, Dara

51

Non-Destructive Examination Independent Review  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Agenda Registration (early registration and speaker check-in) Agenda Registration (early registration and speaker check-in) Monday, August 24, 4:00-6:00pm Tuesday, August 25, 7:00-7:45am 1 Tuesday, August 25, 2009 Session One TIME TITLE/EVENT AUTHORS/SPEAKERS ORGANIZATION 7:00 Registration - - 7:45 Administrivia and Introductions Mike Terry V3 Technical Services 8:15 SRNL & PNNL Welcome Kristine Zeigler SRNL 8:20 Opening Remarks John Shultz C. K. Liu Don Blake James Castleberry Karthik Subramanian DOE-HQ DOE-ORP DOE-SR WRPS SRR 8:45 Intro to SRS Tanks: Structures, Materials Karthik Subramanian SRR 9:10 Intro to Hanford Tanks: Structures, Materials Kayle Boomer WRPS 9:35 Break - - 9:55 HLW Tank Degradation Mechanisms Bruce Wiersma SRNL 10:20 Tank Structural Integrity Panel NDE Recommendations Bruce Thompson Iowa State Univ.

52

NDE measurements for understanding of performance: A few case studies on engineering components, human health and cultural heritage  

Science Journals Connector (OSTI)

Life cycle management involves a seamless integration of materials design analysis production manufacturing and degradation plus a wide variety of disciplines relating to surveillance and characterisation with adequate feedback and control. Science and technology of non-destructive evaluation (NDE) links all these domains and disciplines together in a seamless and robust manner. A number of research programs on NDE science and technology have evolved during the last four decades world over including the one at Indira Gandhi Centre for Atomic Research Kalpakkam initiated and nurtured by the first author. Many engineering and technology challenges pertaining to fast spectrum reactors have been successfully solved by this Centre through development of innovative sensors procedures and coupled with strong basic science and modeling approaches. These technologies have also been selectively applied in gaining insights of human health and cultural heritage. This paper highlights some of the innovative NDE sensors and techniques developed in the field of electromagnetic NDE and their successful applications. A few interesting case studies pertaining to NDE in heritage and healthcare using acoustic and thermal methods are also presented.

Baldev Raj

2013-01-01T23:59:59.000Z

53

Three Nonlinear NDE Techniques On Three Diverse Objects.  

E-Print Network [OSTI]

??Non-Destructive Evaluation has been carried out on three different test objects, with three different methods based on exhibits of slow dynamics and nonlinear effects. The… (more)

Haller, Kristian

2005-01-01T23:59:59.000Z

54

LAMB-WAVE EMBEDDED NDE WITH PIEZOELECTRIC WAFER ACTIVE SENSORS FOR STRUCTURAL HEALTH MONITORING OF  

E-Print Network [OSTI]

LAMB-WAVE EMBEDDED NDE WITH PIEZOELECTRIC WAFER ACTIVE SENSORS FOR STRUCTURAL HEALTH MONITORING waves and enable the development of embedded NDE concepts. This paper will present two embedded NDE Embedded nondestructive evaluation (E-NDE) is an emerging technology that aims at performing NDE testing

Giurgiutiu, Victor

55

A REVIEW OF NON-DESTRUCTIVE DETECTION FOR FRUIT QUALITY  

E-Print Network [OSTI]

A REVIEW OF NON-DESTRUCTIVE DETECTION FOR FRUIT QUALITY Haisheng Gao, Fengmei Zhu, Jinxing Cai-harvest fruit was presented in this paper, and the research and application were discussed. This paper elaborated the fruit quality detection methods which were based on one of the following properties: optical

56

Experimental implementation of reverse time migration for nondestructive evaluation  

E-Print Network [OSTI]

evaluation (NDE). This paper applies RTM imaging to NDE applications in bounded samples, where reverberation

57

Advanced statistical methods for analysis of NDE data.  

E-Print Network [OSTI]

??Nondestructive Evaluation (NDE) is a quality-ensuring technique widely used in modern industry. For example, ultrasonic inspection is a routine NDE method to detect flaws/defects in… (more)

Wang, Yurong

2006-01-01T23:59:59.000Z

58

NDE Development for ACERT Engine Components | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. pmp18sun.pdf More Documents & Publications NDE Development for ACERT Engine Components NDE...

59

Non-Destructive X-ray Measurement of Soot, Ash, Washcoat and Regeneration Damage for DPFs  

Broader source: Energy.gov [DOE]

New commercially avaliable non-destructive x-ray techniques are used to make measurements on diesel particulate filters.

60

Non-destructive method for determining neutron exposure  

DOE Patents [OSTI]

A non-destructive method for determination of neutron exposure in an object, such as a reactor pressure vessel, is based on the observation of characteristic gamma-rays emitted by activation products in the object by using a unique continuous gamma-ray spectrometer. The spectrometer views the object through appropriate collimators to determine the absolute emission rate of these characteristic gamma-rays, thereby ascertaining the absolute activity of given activation products in the object. These data can then be used to deduce the spatial and angular dependence of neutron exposure at regions of interest within the object.

Gold, R.; McElroy, W.N.

1983-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Non-Destructive Damage Evaluation Based on Element Strain Energies  

E-Print Network [OSTI]

should apply to 1-D as well as 2-D and 3-D structures with single or multiple damage locations. To achieve the objectives listed above, the following four tasks are addressed: (1) the development of the theoretical foundations of the nondestructive...

Li, Ran

2013-05-01T23:59:59.000Z

62

A Load-based Depth-sensing Indentation Technique for NDE and Life Assessment of Thermal Barrier Coatings  

SciTech Connect (OSTI)

In this paper, we present a load-based micro-indentation technique for evaluating material mechanical properties as well as degradation evaluation and debonding/spallation detection of thermal barrier coating (TBC) materials. Instead of using contact area as a necessary parameter, the new technique is based on the indentation load. Coupled with a multiple-partial unloading procedure during the indentation process, this technique results in a load-depth sensing indentation system capable of determining Young’s modulus of metals, superalloys, and single crystal matrices, and stiffness of coated material systems with flat, tubular, or curved architectures. This micro-indentation technique can be viewed as a viable non-destructive evaluation (NDE) technique for determining as-manufactured and process-exposed metal, superalloy, single crystal, and TBC-coated material properties. This technique also shows promise for the development of a portable instrument for on-line, in-situ NDE and mechanical properties measurement of structural components.

B. S.-J. Kang; C. Feng; J. M. Tannenbaum; M.A. Alvin

2009-06-12T23:59:59.000Z

63

Method of non-destructively inspecting a curved wall portion  

DOE Patents [OSTI]

A method of non-destructively inspecting a curved wall portion of a large and thick walled vessel for a defect by computed tomography is provided. A collimated source of radiation is placed adjacent one side of the wall portion and an array of detectors for the radiation is placed on the other side adjacent the source. The radiation from the source passing through the wall portion is then detected with the detectors over a limited angle, dependent upon the curvature of the wall of the vessel, to obtain a dataset. The source and array are then coordinately moved relative to the wall portion in steps and a further dataset is obtained at each step. The plurality of datasets obtained over the limited angle is then processed to produce a tomogram of the wall portion to determine the presence of a defect therein. In a preferred embodiment, the curved wall portion has a center of curvature so that the source and the array are positioned at each step along a respective arc curved about the center. If desired, the detector array and source can be reoriented relative to a new wall portion and an inspection of the new wall portion can be easily obtained. Further, the source and detector array can be indexed in a direction perpendicular to a plane including the limited angle in a plurality of steps so that by repeating the detecting and moving steps at each index step, a three dimensional image can be created of the wall portion.

Fong, James T. (Bethel Park, PA)

1996-01-01T23:59:59.000Z

64

Implementation and application of NDE on ceramic candle filters.  

E-Print Network [OSTI]

??A nondestructive evaluation (NDE) technique has been developed to determine the deterioration and remaining life of full-size ceramic candle filters used at the Power System… (more)

Kiriakidis, Alejandro C., 1971-

2003-01-01T23:59:59.000Z

65

NDE DEVELOPMENT FOR ACERT ENGINE COMPONENTS | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation pm024sun2011p.pdf More Documents & Publications NDE Development for ACERT Engine Components...

66

Knowledge-based support in Non-Destructive Testing for health monitoring of aircraft structures  

Science Journals Connector (OSTI)

Maintenance manuals include general methods and procedures for industrial maintenance and they contain information about principles of maintenance methods. Particularly, Non-Destructive Testing (NDT) methods are important for the detection of aeronautical ... Keywords: Aircraft industry, Conceptual graphs, Experienced knowledge, Formal visual reasoning, Maintenance procedure, Non-Destructive Testing

Bernard Kamsu-Foguem

2012-10-01T23:59:59.000Z

67

Moving Beyond NDE to Proactive Management of Materials Degradation  

SciTech Connect (OSTI)

There is growing interest in life extensions to enable longer term operation (LTO) for both existing nuclear power plants (NPPs) and proposed new NPPs. In order to justify an initial license extension for the 40-60 year period, new non-destructive examination (NDE) approaches have been developed and deployed by NPP operators in their Aging Management Programs (AMPs). However, to achieve the goals of even longer term operation, and specifically for the USA in looking at methodologies to support subsequent license renewal periods (i.e., 60-80 years, and beyond), it is necessary to understand the capabilities of current NDE methods to detect, monitor and trend degradation and hence enable timely implementation of appropriate corrective actions. This paper discusses insights from past experience, the state-of-the-art, and current activities in the move towards providing a capacity for proactive management of materials degradation (PMMD) to support NPP LTO.

Bond, Leonard J.

2010-07-20T23:59:59.000Z

68

Improving the reliability of automated non-destructive inspection  

SciTech Connect (OSTI)

In automated NDE a region of an inspected component is often interrogated several times, be it within a single data channel, across multiple channels or over the course of repeated inspections. The systematic combination of these diverse readings is recognized to provide a means to improve the reliability of the inspection, for example by enabling noise suppression. Specifically, such data fusion makes it possible to declare regions of the component defect-free to a very high probability whilst readily identifying indications. Registration, aligning input datasets to a common coordinate system, is a critical pre-computation before meaningful data fusion takes place. A novel scheme based on a multiobjective optimization is described. The developed data fusion framework, that is able to identify and rate possible indications in the dataset probabilistically, based on local data statistics, is outlined. The process is demonstrated on large data sets from the industrial ultrasonic testing of aerospace turbine disks, with major improvements in the probability of detection and probability of false call being obtained.

Brierley, N.; Tippetts, T.; Cawley, P. [Imperial College London, South Kensington Campus, SW7 2AZ (United Kingdom)

2014-02-18T23:59:59.000Z

69

Exploratory nondestructive evaluation (NDE) research for advanced materials and processes: Volume 3 -- Interactive multimedia computer based training (IMCBT) for nondestructive evaluation/inspection (NDE/I) personnel. Final report, 1 July 1995--30 April 1998  

SciTech Connect (OSTI)

Interactive Multimedia Computer Based Training (IMCBT) for Nondestructive Inspection (NDE/I) Personnel: Computer Based Training (CBT) is a highly effective method for industrial training that has been growing in popularity. Text, graphics, sound, movies and animation enhance the learning activity. Interactive Multimedia CBT (IMCBT) allows students to learn in an environment where the training material is presented on a computer workstation and uses student interaction and feedback in the learning process. This technology has been used in the aerospace industry for aircraft maintenance and flight training and is growing in many operation training areas. The cost of development of IMCBT material is significantly more expensive than traditional training material, but an hour of IMCBT material can contain more information than an hour of traditional training material since information is transferred faster and with higher retention. Because IMCBT delivers training at lower cost, the overall benefit of IMCBT has been found to be in the range of 40% to 60% cost savings. The application of IMCBT for NDE/I training did show an overwhelmingly positive acceptance of the incorporation of IMCBT for NDE/I personnel within existing training structures. A CD-ROM package called INSPECT (Interactive Student Paced Eddy Current Training) has demonstrate various advanced aspects of potential IMCBT lessons. The INSPECT CD demonstration was reviewed by Air Force and industry professionals, as well as a group of high school students to gauge novice response. The prototype was found to be appealing and to have significant potential as a useful teaching tool. A large majority of the professional reviewers stated they would like to have complete CBT modules like INSPECT for some aspect of their NDE/I training.

Bossi; Knutson, B.; Nerenberg, R.; Deobald, L.; Nelson, J.

1998-07-01T23:59:59.000Z

70

Non-destructive radiocarbon and stable isotopic analyses of archaeological materials using plasma oxidation  

E-Print Network [OSTI]

Plasma oxidation, an alternative to combustion, is shown to be a non-destructive method for obtaining radiocarbon dates on perishable organic artifacts. Electrically excited oxygen gently converts organic carbon to carbon dioxide. Radiocarbon...

Steelman, Karen Lynn

2005-11-01T23:59:59.000Z

71

Non-Destructive X-ray Measurement of Soot, Ash, Washcoat and...  

Broader source: Energy.gov (indexed) [DOE]

Non-Destructive X-ray Measurement of Soot, Ash, Washcoat and Regeneration Damage for DPFs Charles E.A. Finney, Todd J. Toops, C. Stuart Daw Oak Ridge National Laboratory Jan...

72

NDE research focuses on questions such as: How do fabrication, growth, andlor processing  

E-Print Network [OSTI]

NDE research focuses on questions such as: How do fabrication, growth, andlor processing contribute-structural properties affect overall thermal, mechanical, electrical, and optical behavior? WILLIAM & MARY NDE Nondestructive Evaluation (NDE) is an interdisciplinary field of study that is concerned with the development

Lewis, Robert Michael

73

The History and Future of NDE in the Management of Nuclear Power Plant Materials Degradation  

SciTech Connect (OSTI)

The author has spent more than 25 years conducting engineering and research studies to quantify the performance of nondestructive evaluation (NDE) in nuclear power plant (NPP) applications and identifying improvements to codes and standards for NDE to manage materials degradation. This paper will review this fundamental NDE engineering/research work and then look to the future on how NDE can be optimized for proactively managing materials degradation in NPP components.

Doctor, Steven R.

2009-04-01T23:59:59.000Z

74

Strongest non-destructive magnetic field: world record set at 100-tesla  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Strongest non-destructive magnetic field: world record set at Strongest non-destructive magnetic field: world record set at 100-tesla level Strongest non-destructive magnetic field: world record set at 100-tesla level National High Magnetic Field Laboratory magnet achieved a whopping 100.75 tesla-the 100-tesla level is roughly equivalent to 2 million times Earth's magnetic field. March 22, 2012 World record set at National High Magnetic Field Laboratory, Los Alamos In 2011, researchers at the National High Magnetic Field Laboratory set a new world record for the strongest nondestructive magnet field: 97.4 tesla. The feat positioned them to in March 2012 deliver a magnet capable of achieving the elusive 100-tesla goal, profoundly affecting a range of scientific investigations. Get Expertise Director, Pulsed Field Facility

75

Edward's sword? - A non-destructive study of a medieval king's sword  

SciTech Connect (OSTI)

Non-destructive and instrumental methods including photon activation analysis were applied in an examination of an ancient sword. It was tried to find indication of forgery or, if authentic, any later processing and alteration. Metal components of the hilt and the blade were analysed by instrumental photon activation. Non-destructive metallurgical studies (hardness measurements, microscopic microstructure analysis) are briefly described, too. The results of these investigations did not yield indication of non-authenticity. This stood in agreement with the results of stylistic and scientific studies by weapon experts.

Segebade, Chr. [Idaho Accelerator Centre, Idaho State University, 1500 Alvin Ricken Drive, Pocatello, ID 83201 (United States)

2013-04-19T23:59:59.000Z

76

Details of the Electro-Mechanical (E/M) Impedance Health Monitoring of Spot-Welded Structural Joints  

E-Print Network [OSTI]

prevention; Electro-mechanical impedance; NDE; Non- destructive evaluation; Incipient damage; Piezo is clearly perceived. In a previous paper, Giurgiutiu et al. (1997) performed a review of current NDE methods evaluation (NDE) will

Giurgiutiu, Victor

77

ENG 4793: Composite Materials and Processes 1 Non-Destructive Testing (NDT)  

E-Print Network [OSTI]

1 ENG 4793: Composite Materials and Processes 1 Non-Destructive Testing (NDT) ver 1 ENG 4793: Composite Materials and Processes 2 Types of NDT · Visual · Ultrasonic · X-ray · Thermographic · Acoustic Emission · Eddy Current · Shearography ENG 4793: Composite Materials and Processes 3 Visual Inspection

Colton, Jonathan S.

78

Begining of fish defrosting by using non-destructive ultrasonic technique  

E-Print Network [OSTI]

Begining of fish defrosting by using non-destructive ultrasonic technique M. Malaininea , B. Faiza on the monitoring and the study of fish defrosting by an ultrasonic technique, we have difficulties in detecting the begining of the thawing which is an important criterion of fish quality control. To address this problem

Paris-Sud XI, Université de

79

NDE Development for ACERT Engine Components | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. pm024sun2010p.pdf More Documents & Publications NDE DEVELOPMENT FOR ACERT ENGINE COMPONENTS...

80

Joint Estimation of NDE Inspection Capability and Flaw-size Distribution for in-service Aircraft Inspections  

E-Print Network [OSTI]

1 Joint Estimation of NDE Inspection Capability and Flaw- size Distribution for in-service Aircraft, Dayton, OH 45469 Abstract: Nondestructive evaluation (NDE) is widely used in the aerospace industry of unknown existing cracks is more difficult. If NDE signal strength is recorded at all inspections

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Develop Sonic Infrared Imaging Nde For Local Damage Assessment In Civil Structures.  

E-Print Network [OSTI]

?? Nondestructive Evaluation (NDE) is an interdisciplinary field of study, which is concerned with the development of analysis techniques and measurement technologies for the quantitative… (more)

He, Qi

2010-01-01T23:59:59.000Z

82

Roll-to-Roll Electrode Processing and Materials NDE for Advanced...  

Energy Savers [EERE]

and Materials NDE for Advanced Lithium Secondary Batteries 2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation...

83

NDE Assessment of PWSCC in Control Rod Drive Mechanism Housings  

SciTech Connect (OSTI)

Studies being conducted at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington are focused on assessing the effectiveness of Nondestructive examination (NDE) techniques for inspecting control rod drive mechanism (CRDM) nozzles and J-groove weldments. The primary objective of this work is to provide information to the United States Nuclear Regulatory Commission (US NRC) on the effectiveness of NDE methods as related to the in-service inspection of CRDM nozzles and J-groove weldments, and to enhance the knowledge base of primary water stress corrosion cracking (PWSCC) through destructive characterization of the CRDM assemblies. In describing two CRDM assemblies removed from service, decontaminated, and then used in a series of NDE measurements, this paper will address the following questions: 1) What did each technique detect?, 2) What did each technique miss?, 3) How accurately did each technique characterize the detected flaws? Two CRDM assemblies including the CRDM nozzle, the J-groove weld, buttering, and a portion of the ferritic head material were selected for this study. One contained suspected PWSCC, based on in-service inspection data and through-wall leakage; the other contained evidence suggesting through-wall leakage, but this was unconfirmed. The selected NDE measurements follow standard industry techniques for conducting in-service inspections of CRDM nozzles and the crown of the J-groove welds and buttering. In addition, laboratory based NDE methods were employed to conduct inspections of the CRDM assemblies, with particular emphasis on inspecting the J-groove weld and buttering. This paper will also describe the NDE methods used and discuss the NDE results. Future work will involve using the results from these NDE studies to guide the development of a destructive characterization plan to reveal the crack morphology and a comparison of the degradation found by the destructive evaluation with the recorded NDE responses.

Doctor, Steven R.; Cumblidge, Stephen E.; Schuster, George J.; Harris, Rob V.; Crawford, Susan L.

2006-11-01T23:59:59.000Z

84

Proceedings: EPRI 11th Annual NDE Issues Meeting  

SciTech Connect (OSTI)

For the past 10 years, EPRI has transferred research and applications solutions to its subscribing members during this annual event. At this meeting, members are invited to provide important feedback on emergent issues, solutions needed, and desired direction of the EPRI Nondestructive Evaluation (NDE) Center. The 11th Annual NDE Issues Meeting was held July 16-18, 2001, in Toronto, Ontario, Canada, and was hosted by Ontario Power Generation.

None

2001-10-01T23:59:59.000Z

85

Non-destructive assay of spent nuclear fuel using passive neutron Albedo reactivity  

SciTech Connect (OSTI)

Passive Neutron Albedo Reactivity (PNAR) is one of fourteen techniques that has been researched and evaluated to form part of a comprehensive and integrated detection system for the non-destructive assay (NDA) of spent nuclear fuel. PNAR implemented with {sup 3}He tubes for neutron detection (PNAR-{sup 3}He) is the measurement of time correlated neutrons from a spent fuel assembly with and without a Cadmium (Cd) layer surrounding the assembly. PNAR utilizes the self-interrogation of the fuel via reflection of neutrons born in the fuel assembly back in to the fuel assembly. The neutrons originate primarily from spontaneous fission events within the fuel itself (Curium-244) but are amplified by multiplication. The presence and removal of the Cd provides two measurement conditions with different neutron energy spectra and therefore different interrogating neutron characteristics. Cd has a high cross-section of absorption for slow neutrons and therefore greatly reduces the low energy (thermal) neutron fluence rate returning. The ratios of the Singles, Doubles and Triples count rates obtained in each case are known as the Cd ratios, which are related to fissile content. A potential safeguards application for which PNAR-{sup 3}He is particularly suited is 'fingerprinting'. Fingerprinting could function as an alternative to plutonium (Pu) mass determination; providing confidence that material was not diverted during transport between sites. PNAR-{sup 3}He has six primary NDA signatures: Singles, Doubles and Triples count rates measured with two energy spectra at both shipping and receiving sites. This is to uniquely identify the fuel assembly, and confirm no changes have taken place during transport. Changes may indicate all attempt to divert material for example. Here, the physics of the PNAR-{sup 3}He concept will be explained, alongside a discussion on the development of a prototypical PNAR-{sup 3}He instrument using simulation. The capabilities and performance of the conceptual instrument will be summarized, in the context of (a) quantifying Pu mass in spent fuel assemblies and (b) detecting pin diversion (through a discrepancy between declared and measured properties of the fuel assembly) when the instrument is deployed. These quantitative capabilities are complementary to the 'fingerprinting' capability which is part of ensuring continuity of knowledge and custody of spent nuclear fuel.

Evans, L G [Los Alamos National Laboratory; Schear, M A [Los Alamos National Laboratory; Croft, S [Los Alamos National Laboratory; Tobin, S J [Los Alamos National Laboratory; Swinhoe, M T [Los Alamos National Laboratory; Menlove, H O [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

86

FROM NDE WITH A Q TO SHM AND BEYOND  

SciTech Connect (OSTI)

In the nineteen-sixties, a significant limitation of NDI and NDE became apparent with the advent of fracture mechanics. Fracture mechanics requires quantitative information on defects, which has to be obtained from quantitative non-destructive testing. A DARPA Program directed by Don Thompson provided the point of departure for the journey to put the Q with NDE. The DARPA Program, and subsequent DOD, FAA and industrial programs produced seminal results for diagnostics and prognostics. In diagnostics, measurement models, probability of detection considerations and techniques of defect characterization were developed, which were complemented by damage evolution laws, probabilistic failure analysis and damage progression estimates, for methods of prognostication. The new results in QNDE naturally led to the concept of structural health monitoring (SHM), whereby sensors are permanently installed on structures. An SHM system can provide on-demand (or continuous) information on the state of a structure, so that an assessment of the structural integrity can be made at any time, and timely remedial actions can be taken. In this paper, we review the development of QNDE towards SHM. Sensor development, data processing, materials engineering and solid mechanics play dominant roles in both the diagnostic and the prognostic components of SHM. A probabilistic approach is essential, as will be shown by examples of pre-crack fatigue damage, crack growth and optimization of an inspection schedule.

Achenbach, J. D. [Center for Quality Engineering and Failure Prevention, Northwestern University Evanston, IL 60208 (United States)

2009-03-03T23:59:59.000Z

87

Non-destructive method for determining neutron exposure and constituent concentrations of a body  

DOE Patents [OSTI]

A non-destructive method for determination of neutron exposure and constituent concentrations in an object, such as reactor pressure vessel, is based on the observation of characteristic gamma-rays emitted by activation products in the object by using a unique continuous gamma-ray spectrometer. The spectrometer views the object through appropriate collimators to determine the absolute emission rate of these characteristic gamma-rays, thereby ascertaining the absolute activity of given activation products in the object. These data can then be used to deduce the spatial and angular dependence of neutron exposure or the spatial constituent concentration at regions of interest within the object.

Gold, Raymond (Richland, WA); McElroy, William N. (Richland, WA)

1986-01-01T23:59:59.000Z

88

Non-destructive method for determining neutron exposure and constituent concentrations of a body  

DOE Patents [OSTI]

A non-destructive method for determination of neutron exposure and constituent concentrations in an object, such as a reactor pressure vessel, is based on the observation of characteristic gamma-rays emitted by activation products in the object by using a unique continuous gamma-ray spectrometer. The spectrometer views the object through appropriate collimators to determine the absolute emission rate of these characteristic gamma-rays, thereby ascertaining the absolute activity of given activation products in the object. These data can then be used to deduce the spatial and angular dependence of neutron exposure or the spatial constituent concentrations at regions of interest within the object.

Gold, R.; McElroy, W.N.

1984-02-22T23:59:59.000Z

89

Research and Evaluation of Advanced Nondestructive Examination (NDE) Methods for Addressing the Challenges of Inspecting Cast Austenitic Stainless Steel (CASS) Piping  

SciTech Connect (OSTI)

This Conference paper is for submission to the 7th International Conference on NDE in Relation to Structural Integrity for Nuclear and Pressurized Components, in Yokohama, Japan Specifically, this paper is being presented at this Conference on May 12-14, 2009.

Anderson, Michael T.; Cinson, Anthony D.; Crawford, Susan L.; Cumblidge, Stephen E.; Diaz, Aaron A.

2009-07-01T23:59:59.000Z

90

Materials processing issues for non-destructive laser gas sampling (NDLGS)  

SciTech Connect (OSTI)

The Non-Destructive Laser Gas Sampling (NDLGS) process essentially involves three steps: (1) laser drilling through the top of a crimped tube made of 304L stainles steel (Hammar and Svennson Cr{sub eq}/Ni{sub eq} = 1.55, produced in 1985); (2) gas sampling; and (3) laser re-welding of the crimp. All three steps are performed in a sealed chamber with a fused silica window under controlled vacuum conditions. Quality requirements for successful processing call for a hermetic re-weld with no cracks or other defects in the fusion zone or HAZ. It has been well established that austenitic stainless steels ({gamma}-SS), such as 304L, can suffer from solidification cracking if their Cr{sub eq}/Ni{sub eq} is below a critical value that causes solidification to occur as austenite (fcc structure) and their combined impurity level (%P+%S) is above {approx}0.02%. Conversely, for Cr{sub eq}/Ni{sub eq} values above the critical level, solidification occurs as ferrite (bcc structure), and cracking propensity is greatly reduced at all combined impurity levels. The consensus of results from studies of several researchers starting in the late 1970's indicates that the critical Cr{sub eq}/Ni{sub eq} value is {approx}1.5 for arc welds. However, more recent studies by the author and others show that the critical Cr{sub eq}/Ni{sub eq} value increases to {approx}1 .6 for weld processes with very rapid thermal cycles, such as the pulsed Nd:YAG laser beam welding (LBW) process used here. Initial attempts at NDLGS using pulsed LBW resulted in considerable solidification cracking, consistent with the results of work discussed above. After a brief introduction to the welding metallurgy of {gamma}-SS, this presentation will review the results of a study aimed at developing a production-ready process that eliminates cracking. The solution to the cracking issue, developed at LANL, involved locally augmenting the Cr content by applying either Cr or a Cr-rich stainless steel (ER 312) to the top of the crimp using the electro-spark deposition (ESD) process followed by laser mixing, drilling and rewelding. Results of a study of the ESD parameters on deposition rate and efficiency will be discussed along with mass balance calculations for determining the desired Cr content to eliminate cracking. The study also required purchase of new pulsed Nd:YAG laser welders. Evaluation of the performance of the new lasers, including beam profiling results, will also be presented. Development of a mixing, drilling and re-welding process at atmospheric pressure with inert gas shielding demonstrated the efficacy of the Cr-augmentation approach. However, extending the process to vacuum conditions proved more challenging owing to loss of laser transmission through the window from spatter and condensation of metal vapors. Solutions developed to circumvent hese issues will be reviewed. Weld microstructures found with various Cr levels will be presented and discussed.

Lienert, Thomas J [Los Alamos National Laboratory

2010-12-09T23:59:59.000Z

91

Precise thermal NDE for quantifying structural damage  

SciTech Connect (OSTI)

The authors demonstrated a fast, wide-area, precise thermal NDE imaging system to quantify aircraft corrosion damage, such as percent metal loss, above a threshold of 5% with 3% overall uncertainties. The DBIR precise thermal imaging and detection method has been used successfully to characterize defect types, and their respective depths, in aircraft skins, and multi-layered composite materials used for wing patches, doublers and stiffeners. This precise thermal NDE inspection tool has long-term potential benefits to evaluate the structural integrity of airframes, pipelines and waste containers. They proved the feasibility of the DBIR thermal NDE imaging system to inspect concrete and asphalt-concrete bridge decks. As a logical extension to the successful feasibility study, they plan to inspect a concrete bridge deck from a moving vehicle to quantify the volumetric damage within the deck and the percent of the deck which has subsurface delaminations. Potential near-term benefits are in-service monitoring from a moving vehicle to inspect the structural integrity of the bridge deck. This would help prioritize the repair schedule for a reported 200,000 bridge decks in the US which need substantive repairs. Potential long-term benefits are affordable, and reliable, rehabilitation for bridge decks.

Del Grande, N.K.; Durbin, P.F.

1995-09-18T23:59:59.000Z

92

DESIGN AND SIMULATIONS OF INTERDIGITAL TRANSDUCERS FOR LAMB-WAVE BASED SHM SYSTEMS  

E-Print Network [OSTI]

- in to allow for continuous measurement in opposite to non destructive evaluation (NDE) methods where sensors measurement in opposite to non destructive evaluation (NDE) methods where sensors are temporarily mounted on a structure only during measurements. Nowadays there are many different types of the NDE techniques and some

93

GUIDED WAVE PROPAGATION THROUGH COMPOSITE BONDED JOINTS Mohammad H. Sherafat1  

E-Print Network [OSTI]

-destructive evaluation (NDE) should be considered to inspect adhesive bonded joints. In comparision with traditional NDE of non-destructive evaluation (NDE) techniques. Over the last 50 years, NDE techniques (radioscopy of the structures in a real-time manner and provide limited information about structural integrity. NDE techniques

Paris-Sud XI, Université de

94

1 Copyright #### by ASME Proceedings of IMECE2005  

E-Print Network [OSTI]

-DESTRUCTIVE EVALUATION (NDE) OF SPACE APPLICATION PANELS USING PIEZOELECTRIC WAFER ACTIVE SENSORS Adrian Cuc University geometry structures typical of space applications. Keywords: NDE, ultrasonic, Lamb waves, crack, corrosion (NDE), non-destructive inspection (NDI), and non-destructive testing (NDT) techniques for identifying

Giurgiutiu, Victor

95

NDE Development for ACERT Engine Components  

Broader source: Energy.gov (indexed) [DOE]

- NDE inspection for TBC samples after fatiguebench test at Caterpillar and ORNL in near term, and for engine-tested samples when available pmp18 7 NDE Methods for Advanced...

96

Towards structural health monitoring in carbon nanotube reinforced composites  

E-Print Network [OSTI]

An experimental investigation was conducted to understand the non-destructive evaluation (NDE) capabilities of carbon nanotubes (CNTs) of several network architectures towards structural health monitoring (SHM). As ...

Wang, Wennie

2013-01-01T23:59:59.000Z

97

Y-12s Training and Technology ? TAT and Ricky Seals  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

offices in Chattanooga. I was working in predominately a non-destructive evaluation (NDE) group with some mechanical, welding, and metallurgical engineers. Also, I was...

98

Materials Characterization  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

This department develops capabilities and methods in non-destructive evaluation (NDE) for such applications. These methods include laser-methodologies that use acoustic,...

99

Cold neutron prompt gamma activation analysis, a non-destructive technique for hydrogen level assessment in zirconium alloys  

E-Print Network [OSTI]

embrittlement by decreasing overall corrosion and/or by decreasing the amount of hydrogen ingress for a givenCold neutron prompt gamma activation analysis, a non-destructive technique for hydrogen level to quantitatively assess hydrogen concentration in zirconium alloys. The technique, called Cold Neutron Prompt Gamma

Motta, Arthur T.

100

Non-destructive Failure Analysis and Modeling of Encapsulated Miniature SMD Ceramic Chip Capacitors under Thermal and  

E-Print Network [OSTI]

Non-destructive Failure Analysis and Modeling of Encapsulated Miniature SMD Ceramic Chip Capacitors under Thermal and Mechanical Loading B. Wunderle1 , T. Braun1 , D. May1 , A. Mazloum1 , M. Bouazza1 , H-layer ceramic chip ca- pacitors as integrated passive in e. g. system in package applications needs methods

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Time Domain Terahertz Non Destructive Evaluation of Water Intrusion in Composites and Corrosion under Insulation  

Science Journals Connector (OSTI)

Time domain terahertz (a.k.a. T-Ray or THz) imaging is used to detect water intrusion and delamination in composite structures used in radomes. Corrosion is detected on pipes beneath...

White, Jeffrey S; Zimdars, David A

102

Near infrared spectroscopy for non-destructive evaluation of articular cartilage.  

E-Print Network [OSTI]

??There is a need for an accurate real-time quantitative system that would enhance decision-making in the treatment of osteoarthritis. To achieve this objective, significant research… (more)

Afara, Isaac Oluwaseun

2012-01-01T23:59:59.000Z

103

Thermal history sensors for non-destructive temperature measurements in harsh environments  

Science Journals Connector (OSTI)

The operating temperature is a critical physical parameter in many engineering applications however can be very challenging to measure in certain environments particularly when access is limited or on rotating components. A new quantitative non-destructive temperature measurement technique has been proposed which relies on thermally induced permanent changes in ceramic phosphors. This technique has several distinct advantages over current methods for many different applications. The robust ceramic material stores the temperature information allowing long term thermal exposures in harsh environment to be measured at a convenient time. Additionally rare earth dopants make the ceramic phosphorescent so that the temperature information can be interpreted by automated interrogation of the phosphorescent light. This technique has been demonstrated by application of YAG doped with dysprosium and europium as coatings through the air-plasma spray process. Either material can be used to measure temperature over a wide range namely between 300°C and 900°C. Furthermore results show that the material records the peak exposure temperature and prolonged exposure at lower temperatures would have no effect on the temperature measurement. This indicates that these materials could be used to measure peak operating temperatures in long-term testing.

2014-01-01T23:59:59.000Z

104

Thermal history sensors for non-destructive temperature measurements in harsh environments  

SciTech Connect (OSTI)

The operating temperature is a critical physical parameter in many engineering applications, however, can be very challenging to measure in certain environments, particularly when access is limited or on rotating components. A new quantitative non-destructive temperature measurement technique has been proposed which relies on thermally induced permanent changes in ceramic phosphors. This technique has several distinct advantages over current methods for many different applications. The robust ceramic material stores the temperature information allowing long term thermal exposures in harsh environment to be measured at a convenient time. Additionally, rare earth dopants make the ceramic phosphorescent so that the temperature information can be interpreted by automated interrogation of the phosphorescent light. This technique has been demonstrated by application of YAG doped with dysprosium and europium as coatings through the air-plasma spray process. Either material can be used to measure temperature over a wide range, namely between 300°C and 900°C. Furthermore, results show that the material records the peak exposure temperature and prolonged exposure at lower temperatures would have no effect on the temperature measurement. This indicates that these materials could be used to measure peak operating temperatures in long-term testing.

Pilgrim, C. C. [Mechanical Engineering, Imperial College London, London, SW7 2AZ, UK and Sensor Coating Systems, Imperial Incubator, Bessemer Building, Level 1 and 2, Imperial College London, London SW7 2AZ (United Kingdom); Heyes, A. L. [Energy Technology and Innovation Initiative, University of Leeds, Leeds, LS2 9JT (United Kingdom); Feist, J. P. [Sensor Coating Systems, Imperial Incubator, Bessemer Building, Level 1 and 2, Imperial College London, London SW7 2AZ (United Kingdom)

2014-02-18T23:59:59.000Z

105

The use of non-destructive passive neutron measurement methods in dismantling and radioactive waste characterization  

SciTech Connect (OSTI)

The cleaning up and dismantling of nuclear facilities lead to a great volume of technological radioactive wastes which need to be characterized in order to be sent to the adequate final disposal or interim storage. The control and characterization can be performed with non-destructive nuclear measurements such as gamma-ray spectrometry. Passive neutron counting is an alternative when the alpha-gamma emitters cannot be detected due to the presence of a high gamma emission resulting from fission or activation products, or when the waste matrix is too absorbing for the gamma rays of interest (too dense and/or made of high atomic number elements). It can also be a complement to gamma-ray spectrometry when two measurement results must be confronted to improve the confidence in the activity assessment. Passive neutron assays involve the detection of spontaneous fission neutrons emitted by even nuclides ({sup 238}Pu, {sup 240}Pu, {sup 242}Pu, {sup 242}Cm, {sup 244}Cm...) and neutrons resulting from ({alpha}, n) reactions with light nuclides (O, F, Be...). The latter is conditioned by the presence of high {alpha}-activity radionuclides ({sup 234}U, {sup 238}Pu, {sup 240}Pu, {sup 241}Am...) and low-Z elements, which depends on the chemical form (metallic, oxide or fluorine) of the plutonium or uranium contaminant. This paper presents the recent application of passive neutron methods to the cleaning up of a nuclear facility located at CEA Cadarache (France), which concerns the Pu mass assessment of 2714 historic, 100 litre radioactive waste drums produced between 1980 and 1997. Another application is the dismantling and decommissioning of an uranium enrichment facility for military purposes, which involves the {sup 235}U and total uranium quantifications in about a thousand, large compressors employed in the gaseous diffusion enrichment process. (authors)

Jallu, F.; Allinei, P. G. [CEA, DEN, Cadarache, Nuclear Measurement Laboratory, F-13108 Saint-Paul-lez-Durance (France); Bernard, P.; Loridon, J. [CEA, DEN, Cadarache, Nuclear Measurement Laboratory, F-13108 Saint-Paul-lez-Durance (France); Soyer, P.; Pouyat, D. [CEA, DEN, Marcoule, DPAD, F-30207 Bagnols-sur-Ceze Cedex (France); Torreblanca, L. [CEA, DEN, Cadarache, LMDE, F-13108 Saint-Paul-lez-Durance (France); Reneleau, A. [AREVA NC, Pierrelatte, DDAC/ESD, BP16, F-26701 Pierrelatte Cedex (France)

2011-07-01T23:59:59.000Z

106

Role of anisotropy in noncontacting thermoelectric materials characterization  

E-Print Network [OSTI]

Role of anisotropy in noncontacting thermoelectric materials characterization Adnan H. Nayfeh by the intrinsic thermoelectric anisotropy and inhomogeneity of the material to be inspected. This article presents for non- destructive evaluation NDE and materials characterization. Most existing thermoelectric NDE

Nagy, Peter B.

107

NDE 701: Enhanced Resonance Inspection for Light Metal Castings...  

Broader source: Energy.gov (indexed) [DOE]

NDE 701: Enhanced Resonance Inspection for Light Metal Castings NDE 701: Enhanced Resonance Inspection for Light Metal Castings Presentation from the U.S. DOE Office of Vehicle...

108

Application of damage mechanism-specific NDE methods in support of risk-informed inspections  

SciTech Connect (OSTI)

Risk-informed inservice inspection (RISI) programs effectively concentrate limited and costly examination resources on systems and locations most relevant to plant safety. The thought process used in the selection of nondestructive evaluation (NDE) methods and procedures in a RISI program is expected to change toward integrating NDE into integrity management, with a concentration on understanding failure mechanisms. Identifying which damage mechanisms may be operative in specific locations and applying appropriate NDE methods to detect the presence of these damage mechanisms is fundamental to effective RISI application. Considerable information is already available on inspection for damage mechanisms such as intergranular stress corrosion cracking (IGSCC), thermal fatigue, and erosion-corrosion. Similar procedures are under development for other damage mechanisms that may occur individually or in combination with other mechanisms. Guidance is provided on application of NDE procedures in an RISI framework to facilitate implementation by utility staff (Gosselin, 1996).

Walker, S.M.; Ammirato, F.V. [EPRI NDE Center, Charlotte, NC (United States)

1996-12-01T23:59:59.000Z

109

Steam turbine/generator NDE workshop  

SciTech Connect (OSTI)

On September 12--15, 1989, EPRI sponsored a workshop in Charlotte, North Carolina on steam turbine/generator rotating components. The approximate 185 attendees represented a broad spectrum of utilities, equipment manufactures, forging suppliers, service organizations, universities, insurance carriers, and consultants from the United States and abroad. Canada, England, Finland, France, Germany, Japan, Korea, Italy, Spain, and Sweden were represented at the workshop, and 81 of the attendees represented 44 domestic utilities. Nondestructive examination equipment demonstrations by 16 vendors and 2 utilities at the EPRI NDE Center complemented the technical presentation. In addition to 23 formal, technical presentations of prepared papers of specific topics, 8 tutorial presentations, plus various opening and closing remarks and addresses, were given at the workshop. Presentations were organized under the following general topics: bucket blades and/or attachment regions; retaining rings; wheels/disks; steam turbine/generator testing and evaluation; and tutorials. Each individual paper has been cataloged separately.

Nottingham, L.D.; Sabourin, P.F. (Jones (J.A.) Applied Research Co., Charlotte, NC (USA))

1990-11-01T23:59:59.000Z

110

On the interactions of an eddy current sensor and a multilayered structure  

E-Print Network [OSTI]

elements computations. Introduction: The non-destructive evaluation (NDE) of the integrity of conductive as multilayered structures such as aeronautical assemblies are concerned, the NDE is an "ill-posed" problem for the resolution of the NDE inverse problem for any type of EC sensor. Experimental setup: The NDE problem

Paris-Sud XI, Université de

111

Explorer-II: Wireless Self-Powered Visual and NDE Robotic Inspection System for Live Gas Distribution Mains  

SciTech Connect (OSTI)

Carnegie Mellon University (CMU) under contract from Department of Energy/National Energy Technology Laboratory (DoE/NETL) and co-funding from the Northeast Gas Association (NGA), has completed the overall system design, field-trial and Magnetic Flux Leakage (MFL) sensor evaluation program for the next-generation Explorer-II (X-II) live gas main Non-destructive Evaluation (NDE) and visual inspection robot platform. The design is based on the Explorer-I prototype which was built and field-tested under a prior (also DoE- and NGA co-funded) program, and served as the validation that self-powered robots under wireless control could access and navigate live natural gas distribution mains. The X-II system design ({approx}8 ft. and 66 lbs.) was heavily based on the X-I design, yet was substantially expanded to allow the addition of NDE sensor systems (while retaining its visual inspection capability), making it a modular system, and expanding its ability to operate at pressures up to 750 psig (high-pressure and unpiggable steel-pipe distribution mains). A new electronics architecture and on-board software kernel were added to again improve system performance. A locating sonde system was integrated to allow for absolute position-referencing during inspection (coupled with external differential GPS) and emergency-locating. The power system was upgraded to utilize lithium-based battery-cells for an increase in mission-time. The resulting robot-train system with CAD renderings of the individual modules. The system architecture now relies on a dual set of end camera-modules to house the 32-bit processors (Single-Board Computer or SBC) as well as the imaging and wireless (off-board) and CAN-based (on-board) communication hardware and software systems (as well as the sonde-coil and -electronics). The drive-module (2 ea.) are still responsible for bracing (and centering) to drive in push/pull fashion the robot train into and through the pipes and obstacles. The steering modules and their arrangement, still allow the robot to configure itself to perform any-angle (up to 90 deg) turns in any orientation (incl. vertical), and enable the live launching and recovery of the system using custom fittings and a (to be developed) launch-chamber/-tube. The battery modules are used to power the system, by providing power to the robot's bus. The support modules perform the functions of centration for the rest of the train as well as odometry pickups using incremental encoding schemes. The electronics architecture is based on a distributed (8-bit) microprocessor architecture (at least 1 in ea. module) communicating to a (one of two) 32-bit SBC, which manages all video-processing, posture and motion control as well as CAN and wireless communications. The operator controls the entire system from an off-board (laptop) controller, which is in constant wireless communication with the robot train in the pipe. The sensor modules collect data and forward it to the robot operator computer (via the CAN-wireless communications chain), who then transfers it to a dedicated NDE data-storage and post-processing computer for further (real-time or off-line) analysis. The prototype robot system was built and tested indoors and outdoors, outfitted with a Remote-Field Eddy Current (RFEC) sensor integrated as its main NDE sensor modality. An angled launcher, allowing for live launching and retrieval, was also built to suit custom angled launch-fittings from TDW. The prototype vehicle and launcher systems are shown. The complete system, including the in-pipe robot train, launcher, integrated NDE-sensor and real-time video and control console and NDE-data collection and -processing and real-time display, were demonstrated to all sponsors prior to proceeding into final field-trials--the individual components and setting for said acceptance demonstration are shown. The launcher-tube was also used to verify that the vehicle system is capable of operating in high-pressure environments, and is safely deployable using proper evacuating/purging techniques for operation in the po

Carnegie Mellon University

2008-09-30T23:59:59.000Z

112

On-line ultrasonic velocity measurements for characterisation of microstructural evaluation during thermal aging of ?-quenched zircaloy-2  

Science Journals Connector (OSTI)

Ultrasonic non-destructive evaluation (NDE) technique has been used for characterisation of evolution of microstructure in ?-quenched and thermally aged zircaloy-2 specimens. On-line ultrasonic velocity measurements have been made in ?-quenched state of zircaloy-2 (A specimen) during heating at different heating rates up to 573 K (B specimen), 603 K (C specimen) and 623 K (D specimen) with holding time periods of 5 h for specimens B and C, and 2 h for specimen D, at the corresponding maximum temperature, by employing a specially designed experimental set-up. The observed change in velocity at room temperature (298 K) before and after ageing for specimens B and D is 0.52% and 0.48%, respectively, and this reveals that intermetallic precipitates are formed during the aging treatment. Ultrasonic measurements are correlated with the hardness, density and microstructural changes.

A. Nishara Begum; V. Rajendran; T. Jayakumar; P. Palanichamy; N. Priyadharsini; S. Aravindan; Baldev Raj

2007-01-01T23:59:59.000Z

113

2758 IEEE TRANSACTIONS ON MAGNETICS, VOL. 37, NO. 4, JULY 2001 Evaluation of Mechanical Properties of Magnetic  

E-Print Network [OSTI]

. Swartzendruber, G. E. Hicho, and Harsh Deep Chopra Abstract--A magnetic-based nondestructive evaluation (NDE to correlate the magnetic and mechanical properties in ultra low carbon (ULC) steel. The NDE test equipment-based nondestructive evaluation (NDE) method [1]­[6]. In the present study, a magnetic based NDE method is described

Chopra, Harsh Deep

114

NDE Studies on CRDMs Removed From Service  

SciTech Connect (OSTI)

Studies being conducted at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington are focused on assessing the effectiveness of NDE inspections of control rod drive mechanism (CRDM) nozzles and J-groove weldments. The primary objective of this work is to provide information to the United States Nuclear Regulatory Commission (US NRC) on the effectiveness of ultrasonic testing (UT) and eddy current testing (ET) as related to the in-service inspection of CRDM nozzles and J-groove weldments, and to enhance the knowledge base of primary water stress corrosion cracking (PWSCC) through destructive characterization of the CRDM assemblies. In describing two CRDM assemblies removed from service, decontaminated, and then used in a series of NDE measurements, this paper will address the following questions: 1) What did each technique detect?, 2) What did each technique miss?, 3) How accurately did each technique characterize the detected flaws? Two CRDM assemblies including the CRDM nozzle, the J-groove weld, buttering, and a portion of the ferritic head material were selected for this study. One contained suspected PWSCC, based on in-service inspection data; the other contained evidence suggesting through-wall leakage, but this was unconfirmed. The selected NDE measurements follow standard industry techniques for conducting in-service inspections of CRDM nozzles and the crown of the J-groove welds and buttering. In addition, laboratory based NDE methods will be employed to conduct inspections of the CRDM assemblies, with particular emphasis on inspecting the J-groove weld and buttering. This paper will also describe the NDE methods used and discus the NDE results. Future work will involve using the results from these NDE studies to guide the development of a destructive characterization plan to reveal the crack morphology, to be compared with NDE responses.

Doctor, Steven R.; Cumblidge, Stephen E.; Schuster, George J.; Hockey, Ronald L.; Abrefah, John

2005-12-31T23:59:59.000Z

115

DECONVOLUTION OF ULTRASONIC NONDESTRUCTIVE EVALUATION SIGNALS USING HIGHER-ORDER STATISTICS  

E-Print Network [OSTI]

nondestructive evaluation (NDE) of ma- terials, pulse echo measurements are masked by the characteristics in ultrasonic NDE. 1. INTRODUCTION Pulse echo signals measured in ultrasonic NDE include the effects for the deconvolution of NDE signals. 2. CONVENTIONAL SOS-BASED DECONVOLUTION METHODS A measured ultrasonic flaw signal

Ghouti, Lahouari

116

Nondestructive Examination (NDE) Reliability for Inservice Inspection of Light Water Reactors. Semiannual report, October 1990--March 1991: Volume 13  

SciTech Connect (OSTI)

The Evaluation and Improvement of NDE Reliability for Inservice Inspection of Light Water Reactors (NDE Reliability) Program at the Pacific Northwest Laboratory was established by the Nuclear Regulatory Commission to determine the reliability of current inservice inspection (ISI) techniques and to develop recommendations that will ensure a suitably high inspection reliability. The objectives of this program include determining the reliability of ISI performed on the primary systems of commercial light-water reactors (LWRs); using probabilistic fracture mechanics analysis to determine the impact of NDE unreliability on system safety; and evaluating reliability improvements that can be achieved with improved and advanced technology. A final objective is to formulate recommended revisions to the Regulatory and ASME Code requirements, based on material properties, service conditions, and NDE uncertainties.

Doctor, S.R.; Good, M.S.; Heasler, P.G.; Hockey, R.L.; Simonen, F.A.; Spanner, J.C.; Taylor, T.T.; Vo, T.V. [Pacific Northwest Lab., Richland, WA (United States)

1992-07-01T23:59:59.000Z

117

Biomedical Applications (Sensors and Instrumentation and NDE) - Nuclear  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

NPNS > Sensors and NPNS > Sensors and Instrumentation and NDE > Biomedical Applications Capabilities Sensors and Instrumentation and Nondestructive Evaluation Overview Energy System Applications Safety-Related Applications Homeland Security Applications Biomedical Applications Medical Ice Slurry Coolants for Inducing Targeted-Organ/Tissue Protective Cooling Biosensor for revival of sudden cardiac arrest victims Millimiter Wave Group Papers Other NPNS Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Sensors and Instrumentation and Nondestructive Evaluation Biomedical Applications Bookmark and Share Biosensor for revival of sudden cardiac arrest victims In collaboration from the Emergency Resuscitation Research Center of the

118

Candidature une admission en 2nde Spcialit professionnelle  

E-Print Network [OSTI]

Candidature à une admission en 2nde année Spécialité professionnelle " Conception innovante une admission en 2nde année Spécialité professionnelle " Conception innovante, Maintenance, Durabilité

Sart, Remi

119

Candidature une admission en 2nde Spcialit professionnelle  

E-Print Network [OSTI]

Candidature à une admission en 2nde année Spécialité professionnelle " Conception innovante A #12;Candidature à une admission en 2nde année Spécialité professionnelle " Conception innovante

Sart, Remi

120

Periodic NDE for Bridge Maintenance Ralf W. Arndt  

E-Print Network [OSTI]

Periodic NDE for Bridge Maintenance Ralf W. Arndt NRC Research Associate U.S. Federal Highway Administration NDE Center 6300 Georgetown Pike McLean, VA 22101, USA ralf.arndt@fhwa.dot.gov Frank Jalinoos Program Manager U.S. Federal Highway Administration NDE Center 6300 Georgetown Pike McLean, VA 22101, USA

Huston, Dryver R.

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Embedded Ultrasonics NDE with Piezoelectric Wafer Active Sensors  

E-Print Network [OSTI]

Embedded Ultrasonics NDE with Piezoelectric Wafer Active Sensors Victor Giurgiutiu Department (NDE) is described. PWAS structure and principle of operation are presented. The interaction between exciting certain Lamb wave modes are identified. Recent trends in guided-wave ultrasonic NDE and damage

Giurgiutiu, Victor

122

Nondestructive Examination (NDE) Detection and Characterization of  

Broader source: Energy.gov (indexed) [DOE]

Nondestructive Examination (NDE) Detection and Characterization of Nondestructive Examination (NDE) Detection and Characterization of Degradation Precursors Nondestructive Examination (NDE) Detection and Characterization of Degradation Precursors The U.S. Department of Energy's (DOE) Light Water Reactor Sustainability (LWRS) Program is developing the fundamental scientific basis to understand, predict, and measure changes in materials and systems, structure, and components (SSCs) as they age in environments associated with long-term operations (LTO) of operating commercial nuclear power reactors. The push towards safe long-term operations of light-water reactor (LWR) nuclear power plants (NPPs) brings significant challenges because aging of components can limit the operating lifetime of critical systems (Bond 2010; Bond et al. 2011a). A key element of LTO of LWRs is therefore

123

Quality inspection of small diameter polymeric medical tubing and attached wire stent using TAP-NDE and the Gabor Wavelet Transform  

E-Print Network [OSTI]

inspection of small diameter polymeric medical tubing. A non-contact, laser-optic based technique referred to as the Thermo-Acousto-Photonic Nondestructive Evaluation (TAP-NDE) was utilized to investigate bond integrity and localized stiffening due...

Harms, Kent David

2012-06-07T23:59:59.000Z

124

Quality inspection of small diameter polymeric medical tubing and attached wire stent using TAP-NDE and the Gabor Wavelet Transform.  

E-Print Network [OSTI]

??A non-contact, laser-optic based technique referred to as the Thermo-Acousto-Photonic Nondestructive Evaluation (TAP-NDE) was utilized to investigate bond integrity and localized stiffening due to an… (more)

Harms, Kent David

2012-01-01T23:59:59.000Z

125

Ohmyoung Kwon1 e-mail: omkwon@wow.hongik.ac.kr  

E-Print Network [OSTI]

This paper presents a new non-destructive evaluation NDE technique of imaging sub-surface structure- dimensional micro and nanoengineered devices are developed in the future, the demand for the NDE technique at much slower speeds than sound waves which is commonly used in NDE at large scales. Hence, for a given

Shi, Li

126

Cementing the Future Center for Advanced Cement-Based Materials  

E-Print Network [OSTI]

through imaging. Introduction Non-destructive evaluation (NDE) tech- niques that can detect, localize as one of the most commonly used NDE methods for concrete defect detection since it was first proposed). Impact-echo is a mechanical wave-based NDE technique, where a steel ball applies a transient point load

Shahriar, Selim

127

1 INTRODUCTION Concrete bridge decks are high-performance  

E-Print Network [OSTI]

conditions of reinforced concrete bridge decks with multiple non-destructive evaluation (NDE) techniques activities. The present state-of-the-art is that multiple NDE techniques are available, but that the accuracy and reliability of the methods are not guaranteed. NDE techniques generally employ electromagnetic

Huston, Dryver R.

128

Multi-mode Damage Detection Methods with Piezoelectric Wafer Active Sensors  

E-Print Network [OSTI]

modes structural health monitoring (SHM) and non- destructive evaluation (NDE) simply by changing the driving frequencies. This paper presents research results obtained by using PWAS transducer for SHM/NDE impedance measurements; (3) PWAS ultrasonic SHM/NDE; and (4) PWAS multi-mode corrosion detection

Giurgiutiu, Victor

129

The evaluation of physical dimension changes as non-destructive measurements for monitoring rigor mortis development in broiler muscles  

E-Print Network [OSTI]

muscles are organs of the muscular system that are attached directly or indirectly to bones through ligaments, fascia, cartilage or skin and are primarily responsible for body movements which produce locomotion. The muscle fiber is the highly... and thin contractile proteins known as actin and myosin. Actin and myosin constitute about 75 ? 80'%%d of the protein in each myofibril. These two proteins are primarily responsible for the contractile component of the muscle (Hedrick et al, , 1994...

Cavitt, Leslie Cain

2000-01-01T23:59:59.000Z

130

FDR for non destructive evaluation: inspection of external post-tensioned ducts and measurement of water content in concrete  

E-Print Network [OSTI]

are involved in research programs dedicated to concrete Thermo-Hydro- Mechanical (THM) modeling and to in situ content in concrete (nuclear structures and nuclear waste repositories) is a major topic to understand to Structure Safety for Nuclear and Pressurized Components, France (2013)" #12;The height of each material hn

Boyer, Edmond

131

The role of NDE in nuclear waste clean-up  

SciTech Connect (OSTI)

With the end of the cold war, the need for large production capability of nuclear weapons has diminished; but concerns have arisen about the condition of the waste and the waste storage tanks from weapon production. The major concern is the potential for the waste to somehow contaminate the water, soil, and air around a plant. To completely solve the problem associated with the nuclear waste, the waste must be ultimately retrieved from the tanks, treated, separated into low-level and high-level waste streams, and then put into a final disposal form that will encapsulate the waste so that it will not penetrate the environment. Going through the process of safely retrieving, characterizing, treating, and disposing of the waste requires a large amount of nondestructive evaluation (NDE) sensor technology. The purpose of this paper is to provide a brief description of the types of NDE technologies needed to provide a safe and adequate solution to the nuclear-waste storage and disposal issue.

Light, G.M. [Southwest Research Inst., San Antonio, TX (United States)

1995-08-01T23:59:59.000Z

132

Lithium Ion Electrode Production NDE and QC Considerations |...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

QC Considerations Lithium Ion Electrode Production NDE and QC Considerations Review of Oak Ridge process and QC activities by David Wood, Oak Ridge National Laboratory, at the...

133

Novel NDE techniques in the power generation industry.  

E-Print Network [OSTI]

??The thesis presented here comprises the work undertaken for research into novel NDE techniques in the power generation industry. This has been undertaken as part… (more)

Ward, Christopher M. S.

2010-01-01T23:59:59.000Z

134

Development of improved processing and evaluation methods for high reliability structural ceramics for advanced heat engine applications, Phase 1. Final report  

SciTech Connect (OSTI)

The program goals were to develop and demonstrate significant improvements in processing methods, process controls and non-destructive evaluation (NDE) which can be commercially implemented to produce high reliability silicon nitride components for advanced heat engine applications at temperatures to 1,370{degrees}C. The program focused on a Si{sub 3}N{sub 4}-4% Y{sub 2}O{sub 3} high temperature ceramic composition and hot-isostatic-pressing as the method of densification. Stage I had as major objectives: (1) comparing injection molding and colloidal consolidation process routes, and selecting one route for subsequent optimization, (2) comparing the performance of water milled and alcohol milled powder and selecting one on the basis of performance data, and (3) adapting several NDE methods to the needs of ceramic processing. The NDE methods considered were microfocus X-ray radiography, computed tomography, ultrasonics, NMR imaging, NMR spectroscopy, fluorescent liquid dye penetrant and X-ray diffraction residual stress analysis. The colloidal consolidation process route was selected and approved as the forming technique for the remainder of the program. The material produced by the final Stage II optimized process has been given the designation NCX 5102 silicon nitride. According to plan, a large number of specimens were produced and tested during Stage III to establish a statistically robust room temperature tensile strength database for this material. Highlights of the Stage III process demonstration and resultant database are included in the main text of the report, along with a synopsis of the NCX-5102 aqueous based colloidal process. The R and D accomplishments for Stage I are discussed in Appendices 1--4, while the tensile strength-fractography database for the Stage III NCX-5102 process demonstration is provided in Appendix 5. 4 refs., 108 figs., 23 tabs.

Pujari, V.K.; Tracey, D.M.; Foley, M.R.; Paille, N.I.; Pelletier, P.J.; Sales, L.C.; Wilkens, C.A.; Yeckley, R.L. [Norton Co., Northboro, MA (United States)

1993-08-01T23:59:59.000Z

135

NDE reliability and probability of detection (POD) evolution and paradigm shift  

SciTech Connect (OSTI)

The subject of NDE Reliability and POD has gone through multiple phases since its humble beginning in the late 1960s. This was followed by several programs including the important one nicknamed “Have Cracks – Will Travel” or in short “Have Cracks” by Lockheed Georgia Company for US Air Force during 1974–1978. This and other studies ultimately led to a series of developments in the field of reliability and POD starting from the introduction of fracture mechanics and Damaged Tolerant Design (DTD) to statistical framework by Bernes and Hovey in 1981 for POD estimation to MIL-STD HDBK 1823 (1999) and 1823A (2009). During the last decade, various groups and researchers have further studied the reliability and POD using Model Assisted POD (MAPOD), Simulation Assisted POD (SAPOD), and applying Bayesian Statistics. All and each of these developments had one objective, i.e., improving accuracy of life prediction in components that to a large extent depends on the reliability and capability of NDE methods. Therefore, it is essential to have a reliable detection and sizing of large flaws in components. Currently, POD is used for studying reliability and capability of NDE methods, though POD data offers no absolute truth regarding NDE reliability, i.e., system capability, effects of flaw morphology, and quantifying the human factors. Furthermore, reliability and POD have been reported alike in meaning but POD is not NDE reliability. POD is a subset of the reliability that consists of six phases: 1) samples selection using DOE, 2) NDE equipment setup and calibration, 3) System Measurement Evaluation (SME) including Gage Repeatability and Reproducibility (Gage R and R) and Analysis Of Variance (ANOVA), 4) NDE system capability and electronic and physical saturation, 5) acquiring and fitting data to a model, and data analysis, and 6) POD estimation. This paper provides an overview of all major POD milestones for the last several decades and discuss rationale for using Integrated Computational Materials Engineering (ICME), MAPOD, SAPOD, and Bayesian statistics for studying controllable and non-controllable variables including human factors for estimating POD. Another objective is to list gaps between “hoped for” versus validated or fielded failed hardware.

Singh, Surendra [NDE Engineering, Materials and Process Engineering, Honeywell Aerospace, Phoenix, AZ 85034 (United States)

2014-02-18T23:59:59.000Z

136

Assessment of NDE Methods to Detect Lack of Fusion in HDPE Butt Fusion Joints  

SciTech Connect (OSTI)

Studies at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington, were conducted to evaluate nondestructive examinations (NDE) coupled with mechanical testing of butt fusion joints in high-density polyethylene (HDPE) pipe for assessing lack of fusion. The work provided information to the United States Nuclear Regulatory Commission (NRC) on the effectiveness of volumetric inspection techniques of HDPE butt fusion joints in Section III, Division 1, Class 3, buried piping systems in nuclear power plants. This paper describes results from assessments using ultrasonic and microwave nondestructive techniques and mechanical testing with the high-speed tensile impact test and the side-bend test for determining joint integrity. A series of butt joints were fabricated in 3408, 12-inch (30.5-cm) IPS DR-11 HDPE material by varying the fusion parameters to create good joints and joints containing a range of lack-of-fusion conditions. Six of these butt joints were volumetrically examined with time-of-flight diffraction (TOFD), phased-array (PA) ultrasound, and the Evisive microwave system. The outer diameter (OD) weld beads were removed for microwave evaluation and the pipes ultrasonically re-evaluated. In two of the six pipes, both the outer and inner diameter (ID) weld beads were removed and the pipe joints re-evaluated. Some of the pipes were sectioned and the joints destructively evaluated with the high-speed tensile test and the side-bend test. The fusion parameters, nondestructive and destructive evaluation results have been correlated to validate the effectiveness of what each NDE technology detects and what each does not detect. There was no single NDE method that detected all of the lack-of-fusion flaws but a combination of NDE methods did detect most of the flaws.

Crawford, Susan L.; Doctor, Steven R.; Cinson, Anthony D.; Watts, Michael W.; Moran, Traci L.; Anderson, Michael T.

2011-07-31T23:59:59.000Z

137

HEXAGONAL ARRAY STRUCTURE FOR 2D NDE APPLICATIONS  

SciTech Connect (OSTI)

This paper describes a combination of simulation and experimentation to evaluate the advantages offered by utilizing a hexagonal shaped array element in a 2D NDE array structure. The active material is a 1-3 connectivity piezoelectric composite structure incorporating triangular shaped pillars--each hexagonal array element comprising six triangular pillars. A combination of PZFlex, COMSOL and Matlab has been used to simulate the behavior of this device microstructure, for operation around 2.25 MHz, with unimodal behavior and low levels of mechanical cross-coupling predicted. Furthermore, the application of hexagonal array elements enables the array aperture to increase by approximately 30%, compared to a conventional orthogonal array matrix and hence will provide enhanced volumetric coverage and SNR. Prototype array configurations demonstrate good corroboration of the theoretically predicted mechanical cross-coupling between adjacent array elements (approx23 dB).

Dziewierz, J.; Ramadas, S. N.; Gachagan, A.; O'Leary, R. L. [Centre for Ultrasonic Engineering, Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow, G1 1XW (United Kingdom)

2010-02-22T23:59:59.000Z

138

A new sensor concept for simultaneous measurement of pressure, temperature and thickness of plate structures using modified wave propagation theory  

E-Print Network [OSTI]

-Acousto Photonic Non-Destructive Evaluation (TAP-NDE) is employed to remotely initiate and acquire interrogating ultrasonic waves. Parameters including pressure, temperature and plate thickness are determined through exploring the dispersion features...

Lo, Tzu-Wei

2005-11-01T23:59:59.000Z

139

Multi-Physics Nano-Engineered Structural Damage Detection and De-Icing  

E-Print Network [OSTI]

Catastrophic structural failures are the cause of many physical and personal losses, at a worldwide cost estimated at billions of dollars per year. Non-destructive evaluation (NDE) techniques have been pursued and employed ...

Guzman de Villoria, R.

140

Impact of NDE reliability developments on risk-informed methods  

SciTech Connect (OSTI)

Risk informed inspection procedures are being developed to more effectively and economically manage degradation in plant piping systems. A key element of this process is applying nondestructive examination (NDE) procedures capable of detecting specific damage mechanisms that may be operative in particular locations. Thus, the needs of risk informed analysis are closely coupled with a firm understanding of the capability of NDE.

Walker, S.M.; Ammirato, F.V. [EPRI NDE Center, Charlotte, NC (United States)

1996-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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.


141

Candidature une admission en 2nde Spcialit professionnelle  

E-Print Network [OSTI]

Candidature à une admission en 2nde année Spécialité professionnelle " Conception innovante Technologies Master "Ingénierie Mécanique et Civile" Fiche A #12;Candidature à une admission en 2nde année

Heurteaux, Yanick

142

Candidature une admission en 2nde Spcialit professionnelle " Mcatronique "  

E-Print Network [OSTI]

Candidature à une admission en 2nde année Spécialité professionnelle " Mécatronique " Instructions Technologies Fiche A #12;Candidature à une admission en 2nde année Spécialité professionnelle " Mécatronique

Sart, Remi

143

Oblique Soft X-Ray Tomography as a Non-Destructive Method for Morphology Diagnostics in Degradation of Proton-Exchange Membrane Fuel Cell  

Science Journals Connector (OSTI)

Abstract Diagnostics of performance degradation is important for improving the durability of proton-exchange membrane (PEM) fuel cells. X-ray computed tomography (CT) is a valuable non-destructive method to study the internal structure of PEM fuel cells. However, sample cutting is usually needed for high-resolution observations, which prevents the observer from obtaining information about morphology changes during fuel cell testing. In this study, oblique soft X-ray CT has been developed and its suitability as a non-destructive method for PEM fuel cell diagnostics without sample cutting is demonstrated. The CT images of a membrane-electrode assembly (MEA) were obtained at several stages of cell operation, including hot-pressing, load cycles, wet/dry cycles, and start-up/shutdown (SU/SD) experiments. After SU/SD operation, carbon corrosion with newly generated cracks was observed in the catalyst layer at the cathode outlet of the cell, while no corrosion was observed at the cathode inlet and center and at all anode-side positions. The size of cracks in the microporous layer, especially under the rib area, decreased after cell operation. This study validates that it is possible to observe the cause of fuel cell degradation, i.e., carbon corrosion, at a certain position of the MEA under several stages of operation, without cutting the MEA.

Phengxay Deevanhxay; Takashi Sasabe; Katsunori Minami; Shohji Tsushima; Shuichiro Hirai

2014-01-01T23:59:59.000Z

144

Physical Model Assisted Probability of Detection in Nondestructive Evaluation for Detecting of Flaws in Titanium  

E-Print Network [OSTI]

evaluation (NDE) is used to characterize the status or properties of components or structures without causing any permanent physical damage. The aerospace industry is one important NDE application area where/03 (1989) and NTSB/AAR-90/06 (1990)]. In virtually all NDE applications, there are random effects

145

Nondestructive Examination (NDE) Reliability for Inservice Inspection of Light Water Reactors. Volume 14, Semiannual report, April 1991--September 1991  

SciTech Connect (OSTI)

The Evaluation and Improvement of NDE Reliability for Inservice Inspection of Light Water Reactors (NDE Reliability) Program at the Pacific Northwest Laboratory was established by the Nuclear Regulatory Commission to determine the reliability of current inservice inspection (ISI) techniques and to develop recommendations that will ensure a suitably high inspection reliability. The objectives of this program include determining the reliability of ISI performed on the primary systems of commercial light-water reactors (LWR`s); using probabilistic fracture mechanics analysis to determine the impact of NDE unreliability on system safety; and evaluating reliability improvements that can be achieved with improved and advanced technology. A final objective is to formulate recommended revisions to the Regulatory and ASME Code requirements, based on material properties, service conditions, and NDE uncertainties. The program scope is limited to ISI of the primary systems including the piping, vessel, and other components inspected in accordance with Section XI of the ASME Code. This is a progress report covering the programmatic work from April 1991 through September 1991.

Doctor, S.R.; Diaz, A.A.; Friley, J.R.; Good, M.S.; Greenwood, M.S.; Heasler, P.G.; Hockey, R.L.; Kurtz, R.J.; Simonen, F.A.; Spanner, J.C.; Taylor, T.T.; Vo, T.V. [Pacific Northwest Lab., Richland, WA (United States)

1992-07-01T23:59:59.000Z

146

Nondestructive Examination (NDE) Reliability for Inservice Inspection of Light Water Reactors. Volume 15, Semiannual report: October 1991--March 1992  

SciTech Connect (OSTI)

The Evaluation and Improvement of NDE Reliability for Inservice Inspection of Light Water Reactors (NDE Reliability) Program at the Pacific Northwest Laboratory was established by the Nuclear Regulatory Commission to determine the reliability of current inservice inspection (ISI) techniques and to develop recommendations that will ensure a suitably high inspection reliability. The objectives of this program include determining the reliability of ISI performed on the primary systems of commercial light-water reactors (LWRs); using probabilistic fracture mechanics analysis to determine the impact of NDE unreliability on system safety; and evaluating reliability improvements that can be achieved with improved and advanced technology. A final objective is to formulate recommended revisions to ASME Code and Regulatory requirements, based on material properties, service conditions, and NDE uncertainties. The program scope is limited to ISI of the primary systems including the piping, vessel, and other components inspected in accordance with Section XI of the ASME Code. This is a progress report covering the programmatic work from October 1991 through March 1992.

Doctor, S.R.; Diaz, A.A.; Friley, J.R. [Pacific Northwest Lab., Richland, WA (United States)

1993-09-01T23:59:59.000Z

147

Nondestructive Examination (NDE) Reliability for Inservice Inspection of Light Water Reactors. Semiannual report, April 1992--September 1992: Volume 16  

SciTech Connect (OSTI)

The Evaluation and Improvement of NDE Reliability for Inservice inspection of Light Water Reactors (NDE Reliability) Program at the Pacific Northwest Laboratory was established by the Nuclear Regulatory Commission to determine the reliability of current inservice inspection (ISI) techniques and to develop recommendations that will ensure a suitably high inspection reliability. The objectives of this program include determining the reliability of ISI performed on the primary systems of commercial light-water reactors (LWRs);using probabilistic fracture mechanics analysis to determine the impact of NDE unreliability on system safety; and evaluating reliability improvements that can be achieved with improved and advanced technology. A final objective is to formulate recommended revisions to the Regulatory and ASME Code requirements, based on material properties, service conditions, and NDE uncertainties. The program scope is limited to ISI of the primary systems including the piping, vessel and other components inspected in accordance with Section XI of the ASME Code. This is a programs report covering the programmatic work from April 1992 through September 1992.

Doctor, S.R.; Diaz, A.A.; Friley, J.R.; Greenwood, M.S.; Heasler, P.G.; Kurtz, R.J.; Simonen, F.A.; Spanner, J.C.; Vo, T.V. [Pacific Northwest Lab., Richland, WA (United States)

1993-11-01T23:59:59.000Z

148

Estimating Parameters of Delaminations in GRP Pipes Using Thermal NDE and ANN  

SciTech Connect (OSTI)

Thermographic Non-Destructive Evaluation (TNDE) is one of the techniques that have been widely used over the decades to evaluate the integrity of structures. To meet the increased demand for robust and effective inspection in complex TNDE tasks, Artificial Neural Networks (ANNs) have been recently deployed in many problems. The aim of the paper is to adopt an inverse technique using ANNs in the field of TNDE to estimate various parameters of delamination in Glass Reinforced Polymer (GRP) pipes by supplying thermal contrast evolution data as input. A Radial Basis Network (RBN) is employed with 80 input and 3 output neurons. The estimation capability of the network was evaluated with the data obtained from numerical simulations. The overall absolute errors show that the estimation capability of ANN is good.

Vijayaraghavan, G. K.; Ramachandran, K. P.; Muruganandam, A.; Govindarajan, L. [Caledonian College of Engineering, P.O. Box: 2322, PC-111 (Oman); Majumder, M. C. [National Institute of Technology, Durgapur, 713 209 (India)

2010-10-26T23:59:59.000Z

149

Lithium Ion Electrode Production NDE and QC Considerations  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

3 Presentation name New Directions in Lithium Ion Electrode In-Line NDE * Low-cost IR laser thickness measurement (can be done in multiple point scans across the web or an entire...

150

Ultrasonic quantitative NDE of layered media: the inverse problem  

E-Print Network [OSTI]

used. The technique is fully automated and computer-controlled and can be readily used for in-situ NDE applications. Using this technique, the thickness and the wavespeed of the individual layers can be extractedfrom the same measurement, without...

Jaminet, Paul Thomas

2012-06-07T23:59:59.000Z

151

Nuclear Power Plant NDE Challenges - Past, Present, and Future  

SciTech Connect (OSTI)

This is a paper that covers the major thrust of NDE work that PNNL has conducted for the U.S. Nuclear Regulatory Commission from 1977 to the present.

Doctor, Steven R.

2007-01-01T23:59:59.000Z

152

Vehicle Technologies Office Merit Review 2014: On-Line Weld NDE...  

Broader source: Energy.gov (indexed) [DOE]

On-Line Weld NDE with IR Thermography Vehicle Technologies Office Merit Review 2014: On-Line Weld NDE with IR Thermography Presentation given by Oak Ridge National Laboratory at...

153

Direct, Non-Destructive Observation of a Bose Condensate M.R. Andrews, M.-O. Mewes, N.J. van Druten, D.S. Durfee, D.M. Kurn, and W. Ketterle  

E-Print Network [OSTI]

phenomena such as superfluidity in liquid helium [1]. For a homogeneous sample, Bose- Einstein condensation in the earth's gravita- tional field, the condensate and the normal fraction of a Bose gas are spatially the first direct and non-destructive observation of the spatially localized condensate, in a gas

154

Nuclear Power Plant NDE Challenges - Past, Present, and Future  

SciTech Connect (OSTI)

The operating fleet of U.S. nuclear power plants was built to fossil plant standards (of workmanship, not fitness for service) and with good engineering judgment. Fortuitously, those nuclear power plants were designed using defense-in-depth concepts, with nondestructive examination (NDE) an important layer, so they can tolerate almost any component failure and still continue to operate safely. In the 30+ years of reactor operation, many material failures have occurred. Unfortunately, NDE has not provided the reliability to detect degradation prior to initial failure (breaching the pressure boundary). However, NDE programs have been improved by moving from prescriptive procedures to performance demonstrations that quantify inspection effectiveness for flaw detection probability and sizing accuracy. Other improvements include the use of risk-informed strategies to ensure that reactor components contributing the most risk receive the best and most frequent inspections. Another challenge is the recent surge of interest in building new nuclear power plants in the United States to meet increasing domestic energy demand. New construction will increase the demand for NDE but also offers the opportunity for more proactive inspections. This paper reviews the inception and evolution of NDE for nuclear power plants over the past 40 years, recounts lessons learned, and describes the needs remaining as existing plants continue operation and new construction is contemplated.

Doctor, S. R. [Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352 (United States)

2007-03-21T23:59:59.000Z

155

Rough surface reconstruction for ultrasonic NDE simulation  

SciTech Connect (OSTI)

The reflection of ultrasound from rough surfaces is an important topic for the NDE of safety-critical components, such as pressure-containing components in power stations. The specular reflection from a rough surface of a defect is normally lower than it would be from a flat surface, so it is typical to apply a safety factor in order that justification cases for inspection planning are conservative. The study of the statistics of the rough surfaces that might be expected in candidate defects according to materials and loading, and the reflections from them, can be useful to develop arguments for realistic safety factors. This paper presents a study of real rough crack surfaces that are representative of the potential defects in pressure-containing power plant. Two-dimensional (area) values of the height of the roughness have been measured and their statistics analysed. Then a means to reconstruct model cases with similar statistics, so as to enable the creation of multiple realistic realizations of the surfaces, has been investigated, using random field theory. Rough surfaces are reconstructed, based on a real surface, and results for these two-dimensional descriptions of the original surface have been compared with those from the conventional model based on a one-dimensional correlation coefficient function. In addition, ultrasonic reflections from them are simulated using a finite element method.

Choi, Wonjae; Shi, Fan; Lowe, Michael J. S. [UK Research Centre in NDE, Imperial College, London SW7 2AZ (United Kingdom); Skelton, Elizabeth A.; Craster, Richard V. [Department of Mathematics, Imperial College, London SW7 2AZ (United Kingdom)

2014-02-18T23:59:59.000Z

156

NONLINEAR ELASTIC WAVE NDE II. NONLINEAR WAVE MODULATION SPECTROSCOPY AND NONLINEAR TIME  

E-Print Network [OSTI]

NONLINEAR ELASTIC WAVE NDE II. NONLINEAR WAVE MODULATION SPECTROSCOPY AND NONLINEAR TIME REVERSED. This paper presents the second part of the review of Nonlinear Elastic Wave Spectroscopy (NEWS) in NDE, and describe two different methods of nonlinear NDE that provide not only damage detection but location as well

157

PARTICLE FILTER BASED MULTI-SENSOR FUSION FOR SOLVING LOW FREQUENCY ELECTROMAGNETIC NDE INVERSE PROBLEMS  

E-Print Network [OSTI]

PARTICLE FILTER BASED MULTI-SENSOR FUSION FOR SOLVING LOW FREQUENCY ELECTROMAGNETIC NDE INVERSE 48824 khantari,sdass@msu.edu, r.pradeep@ieee.org Abstract: Flaw profile characterization from NDE from multi-sensor data is considered. The NDE inverse problem is posed as a statistical inverse problem

Dass, Sarat C.

158

Sussex Mathematics Lecture Notes Numerical Differential Equations (841G1NDE)  

E-Print Network [OSTI]

Sussex Mathematics Lecture Notes Year 2010 Numerical Differential Equations (841G1­NDE) taught 4. Attainable Order of LMMs 130 #12;4 NDE (841G1) Spring 2010 Complete course 5. Construction Appendix. Bibliography B-53 Appendix. Index B-55 #12;NDE (841G1) Spring 2010 0. Contents 5 What's this

Lakkis, Omar

159

Diffusion-wave laser radiometric diagnostic quality-control technologies for materials NDE/NDT  

E-Print Network [OSTI]

Diffusion-wave laser radiometric diagnostic quality-control technologies for materials NDE/NDT A in two emerging NDE/NDT technologies. The solution of the ill-posed thermal- wave inverse problem has radiometric NDE metrology capable of measuring the primary photo- injected free carrier parameters

Mandelis, Andreas

160

OPPORTUNITIES AND CHALLENGES IN NDE AND HEALTH MONITORING OF TURBINE ENGINE COMPONENTS  

Science Journals Connector (OSTI)

Advanced high temperature sensors and instrumentation for potential aircraft gas turbine propulsion health monitoring has been explored through significant research and development in the laboratory in the past two decades [8–17]. With continued emphasis on safety improving engine life cycle cost and fuel efficiency and increasing durability and life there is strong impetus to move these technologies out of the laboratory and onto the engines. The objective of this paper is to provide a perspective of the opportunities and challenges in implementing advanced nondestructive evaluation (NDE) and health monitoring techniques on aircraft gas turbine engine components and to propose an approach for accelerating implementation to meet Air Force objectives.

Siamack Mazdiyasni

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Avian feathers as a non-destructive bio-monitoring tool of trace metals signatures: A case study from severely contaminated areas  

Science Journals Connector (OSTI)

Abstract The concentrations of trace metals were assessed using feathers of cattle egrets (Bubulcus ibis), collected within two industrial areas of Pakistan, Lahore and Sialkot. We found, in order of descending concentration: Zinc (Zn), Iron (Fe), Nickel (Ni), Copper (Cu), Cadmium (Cd), and Manganese (Mn), Chromium (Cr), Arsenic (As), and Lithium (Li), without any significant difference (except Fe, Zn, and Ni) between the two areas. The concentrations of trace metals, we recorded were among the highest ever reported in the feathers of avian species worldwide. The concentrations of Cr, Pb, Cd were above the threshold that affects bird reproductive success. The high contamination by heavy metals in the two areas is due to anthropogenic activities as well to natural ones (for As and Fe). The bioaccumulation ratios in eggs and feathers of the cattle egret, their prey, and the sediments from their foraging habitats, confirmed that avian feathers are a convenient and non-destructive sampling tool for the metal contamination. The results of this study will contribute to the environmental management of the Lahore and Sialkot industrial areas.

Muhammad Abdullah; Mauro Fasola; Ashiq Muhammad; Salman Ahmad Malik; Nazish Bostan; Habib Bokhari; Muhammad Aqeel Kamran; Mustafa Nawaz Shafqat; Ambreen Alamdar; Mudassar Khan; Nadeem Ali; Syed Ali Musstjab Akber Shah Eqani

2015-01-01T23:59:59.000Z

162

State-of-the-art of non-destructive testing methods and technologies for application to nuclear power plant safety-related concrete structures  

SciTech Connect (OSTI)

The inspection of nuclear power plant concrete structures presents challenges different from conventional civil engineering structures. Wall thicknesses can be in excess of one meter and the structures often have increased steel reinforcement density with more complex detailing. The accessibility for any testing method may be limited due to the presence of liners and other components and there can be a number of penetrations or cast-in-place items present. The objective of the report is to present the state-of-the art of non-destructive testing methods and technologies for the inspection of thick, heavily-reinforced nuclear power plant concrete cross-sections with particular respect to: •locating steel reinforcement and identification of its cover depth •locating tendon ducts and identification of the condition of the grout materials •detection of cracking, voids, delamination, and honeycombing in concrete structures •detection of inclusions of different materials or voids adjacent to the concrete side of the containment liner •methods capable of identification of corrosion occurrence on the concrete side of the containment liner.

Wiggenhauser, Herbert [BAM - Federal Institute for Materials Research and Testing, Berlin, D (Germany); Naus, Dan J. [Oak Ridge National Laboratory, Oak Ridge, TN (United States)

2014-02-18T23:59:59.000Z

163

State-of-the-Art of Non-Destructive Testing Methods and Technologies for Application to Nuclear Power Plant Safety-Related Concrete Structures  

SciTech Connect (OSTI)

The inspection of nuclear power plant concrete structures presents challenges different from conventional civil engineering structures. Wall thicknesses can be in excess of one meter and the structures often have increased steel reinforcement density with more complex detailing. The accessibility for any testing method may be limited due to the presence of liners and other components and there can be a number of penetrations or cast-in-place items present. The objective of the report is to present the state-of-the art of non-destructive testing methods and technologies for the inspection of thick, heavily-reinforced nuclear power plant concrete cross-sections with particular respect to: locating steel reinforcement and identification of its cover depth locating tendon ducts and identification of the condition of the grout materials detection of cracking, voids, delamination, and honeycombing in concrete structures detection of inclusions of different materials or voids adjacent to the concrete side of the containment liner methods capable of identification of corrosion occurrence on the concrete side of the containment liner

Wiggenhauser, Dr. Herbert [Federal Institute for Materials Research and Testing (BAM)] [Federal Institute for Materials Research and Testing (BAM); Naus, Dan J [ORNL] [ORNL

2014-01-01T23:59:59.000Z

164

Eddy current NDE performance demonstrations using simulation tools  

SciTech Connect (OSTI)

To carry out performance demonstrations of the Eddy-Current NDE processes applied on French nuclear power plants, EDF studies the possibility of using simulation tools as an alternative to measurements on steam generator tube mocks-up. This paper focuses on the strategy led by EDF to assess and use code{sub C}armel3D and Civa, on the case of Eddy-Current NDE on wears problem which may appear in the U-shape region of steam generator tubes due to the rubbing of anti-vibration bars.

Maurice, L. [EDF - CEIDRE, 2 rue Ampere, 93206 Saint-Denis Cedex 1 (France); Costan, V.; Guillot, E.; Thomas, P. [EDF - R and D, THEMIS, 1, avenue du General de Gaulle, 92141 Clamart (France)

2013-01-25T23:59:59.000Z

165

Determining plutonium mass in spent fuel with non-destructive assay techniques - NGSU research overview and update on 6 NDA techniques  

SciTech Connect (OSTI)

This poster is one of two complementary posters. The Next Generation Safeguards Initiative (NGSI) of the U.S. DOE has initiated a multi-lab/university collaboration to quantify the plutonium (Pu) mass in, and detect the diversion of pins from, spent nuclear fuel assemblies with non-destructive assay (NDA). This research effort has the goal of quantifying the capability of 14 NDA techniques as well as training a future generation of safeguards practitioners. By November of 2010, we will be 1.5 years into the first phase (2.5 years) of work. This first phase involves primarily Monte Carlo modelling while the second phase (also 2.5 years) will focus on experimental work. The goal of phase one is to quantify the detection capability of the various techniques for the benefit of safeguard technology developers, regulators, and policy makers as well as to determine what integrated techniques merit experimental work, We are considering a wide range of possible technologies since our research horizon is longer term than the focus of most regulator bodies. The capability of all of the NDA techniques will be determined for a library of 64 17 x 17 PWR assemblies [burnups (15, 30, 45, 60 GWd/tU), initial enrichments (2, 3, 4, 5%) and cooling times (1, 5, 20, 80 years)]. The burnup and cooling time were simulated with each fuel pin being comprised of four radial regions. In this paper an overview of the purpose will be given as well as a technical update on the following 6 neutron techniques: {sup 252}Cf Interrogation with Prompt Neutron Detection, Delayed Neutrons, Differential Die-Away, Differential Die-Away Self-Interrogation, Passive Neutron Albedo Reactivity, Self-Integration Neutron Resonance Densitometry. The technical update will quantify the anticipated performance of each technique for the 64 assemblies of the spent fuel library.

Tobin, Stephen J [Los Alamos National Laboratory; Conlin, Jeremy L [Los Alamos National Laboratory; Evans, Louise G [Los Alamos National Laboratory; Hu, Kianwei [Los Alamos National Laboratory; Blanc, P C [Los Alamos National Laboratory; Lafleur, Am [Los Alamos National Laboratory; Menlove, H O [Los Alamos National Laboratory; Schear, M A [Los Alamos National Laboratory; Swinhoe, M T [Los Alamos National Laboratory; Croft, S [Los Alamos National Laboratory; Fensin, M L [Los Alamos National Laboratory; Freeman, C R [Los Alamos National Laboratory; Koehler, W E [Los Alamos National Laboratory; Mozin, V [Los Alamos National Laboratory; Sandoval, N P [Los Alamos National Laboratory; Lee, T H [KAERI; Cambell, L W [PNNL; Cheatham, J R [ORNL; Gesh, C J [PNNL; Hunt, A [IDAHO STATE UNIV; Ludewigt, B A [LBNL; Smith, L E [PNNL; Sterbentz, J [INL

2010-09-15T23:59:59.000Z

166

A new technique for ultrasonic nondestructive evaluation of adhesive joints  

E-Print Network [OSTI]

the need for nondestructive characterization (NDE) of adhesive layers within a joint. In aerospace adhesives, (typically thermoset resins), determination of wavespeed, and thus modulus, will indicate if resins have been properly cured. Without proper... and will affect bond strength. Therefore, there is a need for techniques for in-situ nondestructive evaluation (NDE) of these two parameters. Although ultrasonic NDE (UNDE) techniques appear to be the most promising techniques for determining the properties...

Hanneman, Susan Elisabeth

2012-06-07T23:59:59.000Z

167

Use of a CO{sub 2} pellet non-destructive cleaning system to decontaminate radiological waste and equipment in shielded hot cells at the Bettis Atomic Power Laboratory  

SciTech Connect (OSTI)

This paper details how the Bettis Atomic Power Laboratory modified and utilized a commercially available, solid carbon dioxide (CO{sub 2}) pellet, non-destructive cleaning system to support the disposition and disposal of radioactive waste from shielded hot cells. Some waste materials and equipment accumulated in the shielded hot cells cannot be disposed directly because they are contaminated with transuranic materials (elements with atomic numbers greater than that of uranium) above waste disposal site regulatory limits. A commercially available CO{sub 2} pellet non-destructive cleaning system was extensively modified for remote operation inside a shielded hot cell to remove the transuranic contaminants from the waste and equipment without generating any secondary waste in the process. The removed transuranic contaminants are simultaneously captured, consolidated, and retained for later disposal at a transuranic waste facility.

Bench, T.R.

1997-05-01T23:59:59.000Z

168

DIGITAL AUDIO SIGNAL PROCESSING AND NDE: AN UNLIKELY BUT VALUABLE PARTNERSHIP  

Science Journals Connector (OSTI)

In the Digital Signal Processing (DSP) group within the School of Electrical and Electronic Engineering at The University of Manchester research is conducted into two seemingly distinct and disparate subjects: instrumentation for nondestructive evaluation and DSP systems & algorithms for digital audio. We have often found that many of the hardware systems and algorithms employed to recover extract or enhance audio signals may also be applied to signals provided by ultrasonic or magnetic NDE instruments. Furthermore modern DSP hardware is so fast (typically performing hundreds of millions of operations per second) that much of the processing and signal reconstruction may be performed in real time. Here we describe some of the hardware systems we have developed together with algorithms that can be implemented both in real time and offline. A next generation system has now been designed which incorporates a processor operating at 0.55 Giga MMACS six input and eight output analogue channels digital input/output in the form of S/PDIF a JTAG and a USB interface. The software allows the user with no knowledge of filter theory or programming to design and run standard or arbitrary FIR IIR and adaptive filters. Using audio as a vehicle we can demonstrate the remarkable properties of modern reconstruction algorithms when used in conjunction with such hardware; applications in NDE include signal enhancement and recovery in acoustic ultrasonic magnetic and eddy current modalities.

Patrick Gaydecki

2008-01-01T23:59:59.000Z

169

Progression in non-destructive spallation prediction and elevated temperature mechanical property evaluation of thermal barrier coating systems by use of a spherical micro-indentation method.  

E-Print Network [OSTI]

??The accumulation of carbon dioxide in the atmosphere continues to be an important ecological issue associated with global warming. The demand for improved efficiencies in… (more)

Tannenbaum, Jared Michael.

2011-01-01T23:59:59.000Z

170

Defining the needs for non-destructive assay of UF6 feed, product, and tails at gas centrifuge enrichment plants and possible next steps  

SciTech Connect (OSTI)

Current safeguards approaches used by the IAEA at gas centrifuge enrichment plants (GCEPs) need enhancement in order to detect undeclared LEU production with adequate detection probability using non destructive assay (NDA) techniques. At present inspectors use attended systems, systems needing the presence of an inspector for operation, during inspections to verify the mass and {sup 235}U enrichment of UF{sub 6} bulk material used in the process of enrichment at GCEPS. The inspectors also take destructive assay (DA) samples for analysis off-site which provide accurate, on the order of 0.1 % to 0.5% uncertainty, data on the enrichment of the UF{sub 6} feed, tails, and product. However, DA sample taking is a much more labor intensive and resource intensive exercise for the operator and inspector. Furthermore, the operator must ship the samples off-site to the IAEA laboratory which delays the timeliness of the results and contains the possibility of the loss of the continuity of knowledge of the samples during the storage and transit of the material. Use of the IAEA's inspection sampling algorithm shows that while total sample size is fixed by the total population of potential samples and its intrinsic qualities, the split of the samples into NDA or DA samples is determined by the uncertainties in the NDA measurements. Therefore, the larger the uncertainties in the NDA methods, more of the sample taken must be DA samples. Since the DA sampling is arduous and costly, improvements in NDA methods would reduce the number of DA samples needed. Furthermore, if methods of on-site analysis of the samples could be developed that have uncertainties in the 1-2% range, a lot of the problems inherent in DA sampling could be removed. The use of an unattended system that could give an overview of the entire process giving complementary data on the enrichment process as well as accurate measures of enrichment and weights of the UF{sub 6} feed, tails, and product would be a major step in enhancing the ability of NDA beyond present attended systems. The possibility of monitoring the feed, tails, and product header pipes in such a way as to gain safeguards relevant flow and enrichment information without compromising the intellectual property of the operator including proprietary equipment and operational parameters would be a huge step forward. This paper contains an analysis of possible improvements in unattended and attended NDA systems including such process monitoring and possible on-site analysis of DA samples that could reduce the uncertainty of the inspector measurements reducing the difference between the operator's and inspector's measurements providing more effective and efficient IAEA GeEPs safeguards.

Boyer, Brian D [Los Alamos National Laboratory; Swinhoe, Martyn T [Los Alamos National Laboratory; Moran, Bruce W [IAEA; Lebrun, Alain [IAEA

2009-01-01T23:59:59.000Z

171

Light Water Reactor Sustainability (LWRS) Program - R&D Roadmap for  

Broader source: Energy.gov (indexed) [DOE]

(LWRS) Program - R&D Roadmap (LWRS) Program - R&D Roadmap for Non-Destructive Evaluation (NDE) of Fatigue Damage in Piping Light Water Reactor Sustainability (LWRS) Program - R&D Roadmap for Non-Destructive Evaluation (NDE) of Fatigue Damage in Piping Light water reactor sustainability (LWRS) nondestructive evaluation (NDE) Workshops were held at Oak Ridge National Laboratory (ORNL) during July 30th to August 2nd, 2012. This activity was conducted to help develop the content of the NDE R&D roadmap for the materials aging and degradation (MAaD) pathway of the LWRS program. The workshops focused on identifying NDE R&D needs in four areas: cables, concrete, reactor pressure vessel, and piping. A selected group of subject matter experts (SMEs) from DOE national laboratories, academia, vendors, EPRI, and NRC were invited to each

172

Light Water Reactor Sustainability (LWRS) Program - R&D Roadmap for  

Broader source: Energy.gov (indexed) [DOE]

Light Water Reactor Sustainability (LWRS) Program - R&D Roadmap Light Water Reactor Sustainability (LWRS) Program - R&D Roadmap for Non-Destructive Evaluation (NDE) of Fatigue Damage in Piping Light Water Reactor Sustainability (LWRS) Program - R&D Roadmap for Non-Destructive Evaluation (NDE) of Fatigue Damage in Piping Light water reactor sustainability (LWRS) nondestructive evaluation (NDE) Workshops were held at Oak Ridge National Laboratory (ORNL) during July 30th to August 2nd, 2012. This activity was conducted to help develop the content of the NDE R&D roadmap for the materials aging and degradation (MAaD) pathway of the LWRS program. The workshops focused on identifying NDE R&D needs in four areas: cables, concrete, reactor pressure vessel, and piping. A selected group of subject matter experts (SMEs) from DOE national

173

Near-death experiences (NDE) Expriences aux frontires de la mort  

E-Print Network [OSTI]

Near-death experiences (NDE) Expériences aux frontiÚres de la mort Expériences de mort imminente (Mt/Mc/Lc) - Jeune homme à Naïn (Lc) - Lazare (Jn) 4. Récits de NDE : pénibilité du passage et nature Vénérable (673-735) : histoire de Drythelm NDE = Evénement de tous les temps #12;Bergeron et Montana (1877

Halazonetis, Thanos

174

Proceedings: 20th Steam Generator NDE Workshop: Orlando, Florida, July 9-11, 2001  

SciTech Connect (OSTI)

The 2001 workshop took place in Orlando, Florida, from July 9 to 11, 2001. It covered one full day and two half-days of presentations. Attendees included representatives from domestic and overseas nuclear utilities, NSSS vendors, NDE service and equipment organizations, research laboratories, and regulatory bodies. This annual workshop serves as a forum for NDE specialists to gather and discuss current steam generator NDE issues and means for their resolution.

None

2003-02-01T23:59:59.000Z

175

Roll-to-Roll Electrode Processing and Materials NDE for Advanced...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Merit Review 2014: Roll-to-Roll Electrode Processing NDE for Advanced Lithium Secondary Batteries In-situ characterization and diagnostics of mechanical degradation in electrodes...

176

Quantifying Improvement in NDE Techniques for Inspecting Nickel-base Alloys in an International Cooperative Program  

SciTech Connect (OSTI)

In this paper we describe an atlas that is being created in an international program for use by participants in quantifying NDE effectiveness for varying crack parameters.

Schuster, George J.; Doctor, Steven R.; Anderson, Michael T.

2007-01-01T23:59:59.000Z

177

E-Print Network 3.0 - advanced nde methods Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

high resolution to incipient material and structural... and the composite patch repair. NDE methods for ... Source: Giurgiutiu, Victor - Department of Mechanical...

178

Interpretation of data obtained from non-destructive and destructive post-test analyses of an intact-core column of culebra dolomite  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) has been developing a nuclear waste disposal facility, the Waste Isolation Pilot Plant (WIPP), located approximately 42 km east of Carlsbad, New Mexico. The WIPP is designed to demonstrate the safe disposal of transuranic wastes produced by the defense nuclear-weapons program. Pefiormance assessment analyses (U.S. DOE, 1996) indicate that human intrusion by inadvertent and intermittent drilling for resources provide the only credible mechanisms for significant releases of radionuclides horn the disposal system. These releases may occur by five mechanisms: (1) cuttings, (2) cavings, (3) spallings, (4) direct brine releases, and (5) long- term brine releases. The first four mechanisms could result in immediate release of contaminant to the accessible environment. For the last mechanisq migration pathways through the permeable layers of rock above the Salado are important, and major emphasis is placed on the Culebra Member of the Rustler Formation because this is the most transmissive geologic layer in the disposal system. For reasons of initial quantity, half-life, and specific radioactivity, certain isotopes of T~ U, Am, and Pu would dominate calculated releases from the WIPP. In order to help quantifi parameters for the calculated releases, radionuclide transport experiments have been carried out using five intact-core columns obtained from the Culebra dolomite member of the Rustler Formation within the Waste Isolation Pilot Pknt (WIPP) site in southeastern New Mexico. This report deals primarily with results of analyses for 241Pu and 241Am distributions developed during transport experiments in one of these cores. All intact-core column transport experiments were done using Culebra-simukmt brine relevant to the core recovery location (the WIPP air-intake shaft - AK). Hydraulic characteristics (i.e., apparent porosity and apparent dispersion coefficient) for intact-core columns were obtained via experiments using conservative tracer `Na. Elution experiments carried out over periods of a few days with tracers `2U and `?Np indicated that these tracers were weakly retarded as indicated by delayed elution of these species. Elution experiments with tracers 24% and 24*Arn were performed, but no elution of either species was observed in any flow experiment to date, including experiments of many months' duration. In order to quanti~ retardation of the non-eluted species 24*Pu and 241Arn afler a period of brine flow, non-destructive and destructive analyses of an intact-core column were carried out to determine distribution of these actinides in the rock. Analytical results indicate that the majority of the 241Am is present very near the top (injection) surface of the core (possibly as a precipitate), and that the majority of the 241Pu is dispersed with a very high apparent retardation value. The 24]Pu distribution is interpreted using a single-porosity advection-dispersion model, and an approximate retardation value is reported for this actinide. The specific radionuclide isotopes used in these experiments were chosen to facilitate analysis. Even though these isotopes are not necessarily the same as those that are most important to WIPP performance, they are isotopes of the same elements, and their chemical and transport properties are therefore identical to those of isotopes in the inventory.

Lucero, Daniel L.; Perkins, W. George

1998-09-01T23:59:59.000Z

179

Impulse Response Estimation for Spatial Resolution Enhancement in Ultrasonic NDE Imaging  

SciTech Connect (OSTI)

This report describes a signal processing algorithm and MATLAB software for improving spatial resolution in ultrasonic nondestructive evaluation (NDE) imaging of materials. Given a measured reflection signal and an associated reference signal, the algorithm produces an optimal least-squares estimate of the impulse response of the material under test. This estimated impulse response, when used in place of the raw reflection signal, enhances the spatial resolution of the ultrasonic measurements by removing distortion caused by the limited-bandwidth transducers and the materials under test. The theory behind the processing algorithms is briefly presented, while the reader is referred to the bibliography for details. The main focus of the report is to describe how to use the MATLAB software. Two processing examples using actual ultrasonic measurements are provided for tutorial purposes.

Clark, G A

2004-06-25T23:59:59.000Z

180

Recent Advancements in the Electro-Mechanical (E/M) Impedance Method for Structural Health Monitoring and NDE  

E-Print Network [OSTI]

Monitoring and NDE Victor Giurgiutiu and Craig A. Rogers Department of Mechanical Engineering, University-mechanical impedance technology has high potential for in-situ health monitoring and NDE of structural systems of this NDE method, wave propagation phenomena are identified as the primary coupling method between

Giurgiutiu, Victor

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Candidature une admission en 2nde Elves-ingnieurs IFMA, ISIMA ou  

E-Print Network [OSTI]

Candidature Ă  une admission en 2nde annĂ©e ElĂšves-ingĂ©nieurs IFMA, ISIMA ou Polytech principe pour l'admission en 2nde annĂ©e du Master recherche. La liste dĂ©finitive des admis sera arrĂȘtĂ©e en

Sart, Remi

182

Integration of NDE Reliability and Fracture Mechanics  

SciTech Connect (OSTI)

The Pacific Northwest Laboratory is conducting a four-phase program for measuring and evaluating the effectiveness and reliability of in-service inspection (lSI} performed on the primary system piping welds of commercial light water reactors (LWRs). Phase I of the program is complete. A survey was made of the state of practice for ultrasonic rsr of LWR primary system piping welds. Fracture mechanics calculations were made to establish required nondestrutive testing sensitivities. In general, it was found that fatigue flaws less than 25% of wall thickness would not grow to failure within an inspection interval of 10 years. However, in some cases failure could occur considerably faster. Statistical methods for predicting and measuring the effectiveness and reliability of lSI were developed and will be applied in the "Round Robin Inspections" of Phase II. Methods were also developed for the production of flaws typical of those found in service. Samples fabricated by these methods wilI be used in Phase II to test inspection effectiveness and reliability. Measurements were made of the influence of flaw characteristics {i.e., roughness, tightness, and orientation) on inspection reliability. These measurernents, as well as the predictions of a statistical model for inspection reliability, indicate that current reporting and recording sensitivities are inadequate.

Becker, F. L.; Doctor, S. R.; Heas!er, P. G.; Morris, C. J.; Pitman, S. G.; Selby, G. P.; Simonen, F. A.

1981-03-01T23:59:59.000Z

183

An International Round-Robin Test of NDE Reliability for PWSCC  

SciTech Connect (OSTI)

In this paper we describe the round robin tests that have been designed and are being conducted in the international program. Participants in the PINC have offered more than 30 test blocks for use in round-robin tests of NDE effectiveness. The test blocks have more than 130 flaws in nickel-base weld metal that are intended to simulate PWSCC in a variety of component geometries. NDE techniques representative of current in-service inspections are being applied, along with emerging NDE approaches.

Schuster, George J.; Cumblidge, Stephen E.; Doctor, Steven R.; Moyer, Carol E.

2007-12-01T23:59:59.000Z

184

Proceedings: 21st Steam Generator NDE Workshop: Volumes I and II, Berkeley, California, July 15-17, 2002  

SciTech Connect (OSTI)

This year's workshop took place in Berkeley, California, from July 15 to 17, 2002. It covered one full day and two half-days of presentations. Attendees included representatives from domestic and overseas nuclear utilities, NSSS vendors, NDE service and equipment organizations, research laboratories, and regulatory bodies. This annual workshop serves as a forum for NDE specialists to gather and discuss current steam generator NDE issues and means for their resolution.

None

2003-02-01T23:59:59.000Z

185

An exploration of the utilities of terahertz waves for the NDE of composites  

SciTech Connect (OSTI)

We report an investigation of terahertz waves for the nondestructive evaluation of composite materials and structures. The modalities of the terahertz radiation used were time domain spectroscopy (TDS) and continuous wave (CW). The composite materials and structures investigated include both non-conducting polymeric composites and carbon fiber composites. Terahertz signals in the TDS mode resembles that of ultrasound; however, unlike ultrasound, a terahertz pulse can detect a crack hidden behind a larger crack. This was demonstrated in thick GFRP laminates containing double saw slots. In carbon composites the penetration of terahertz waves is quite limited and the detection of flaws is strongly affected by the angle between the electric field vector of the terahertz waves and the intervening fiber directions. The structures tested in this study include both solid laminates and honeycomb sandwiches. The defects and anomalies investigated by terahertz waves were foreign material inclusions, simulated disbond and delamination, mechanical impact damage, heat damage, and water or hydraulic fluid ingression. The effectiveness and limitations of terahertz radiation for the NDE of composites are discussed.

Hsu, David K.; Im, Kwang-Hee; Chiou, Chien-Ping; Barnard, Daniel J. [Center for Nondestructive Evaluation, Iowa State University, Ames, Iowa 50011 (United States)

2011-06-23T23:59:59.000Z

186

System and method for ultrasonic tomography  

DOE Patents [OSTI]

A system and method for doing both transmission mode and reflection mode three-dimensional ultrasonic imagining. The multimode imaging capability may be used to provide enhanced detectability of cancer tumors within human breast, however, similar imaging systems are applicable to a number of other medical problems as well as a variety of non-medical problems in non-destructive evaluation (NDE).

Haddad, Waleed Sami (Dublin, CA)

2002-01-01T23:59:59.000Z

187

Nondestructive Examination (NDE) Detection and Characterization of Degradation Precursors, Technical Progress Report for FY 2012  

SciTech Connect (OSTI)

The overall objective of this project was to investigate the effectiveness of nondestructive examination (NDE) technology in detecting material degradation precursors by initiating and growing cracks in selected materials and using NDE methods to measure crack precursors prior to the onset of cracking. Nuclear reactor components are subject to stresses over time that are not precisely known and that make the life expectancy of components difficult to determine. To prevent future issues with the operation of these plants because of unforeseen failure of components, NDE technology is needed that can be used to identify and quantify precursors to macroscopic degradation of materials. Some of the NDE methods being researched as possible solutions to the precursor detection problem are magnetic Barkhausen noise, nonlinear ultrasonics, acoustic emission, eddy current measurements, and guided wave technology. In FY12, the objective was to complete preliminary assessment of advanced NDE techniques for sensitivity to degradation precursors, using prototypical degradation mechanisms in laboratory-scale measurements. This present document reports on the deliverable that meets the following milestone: M3LW-12OR0402143 – Report detailing an initial demonstration on samples from the crack-initiation tests will be provided (demonstrating acceleration of the work).

Ramuhalli, P.; Meyer, R.M.; Fricke, J.M.; Prowant, M.S.; Coble, J.B.; Griffin, J.W.; Pitman, S.G.; Dahl, M.E.; Kafentzis, T.A.; Roosendaal, T.J.

2012-09-01T23:59:59.000Z

188

Particle-Filter-Based Multisensor Fusion For Solving Low-Frequency Electromagnetic NDE Inverse Problems  

SciTech Connect (OSTI)

Flaw profile characterization from NDE measurements is a typical inverse problem. A novel transformation of this inverse problem into a tracking problem, and subsequent application of a sequential Monte Carlo method called particle filtering, has been proposed by the authors in an earlier publication [1]. In this study, the problem of flaw characterization from multi-sensor data is considered. The NDE inverse problem is posed as a statistical inverse problem and particle filtering is modified to handle data from multiple measurement modes. The measurement modes are assumed to be independent of each other with principal component analysis (PCA) used to legitimize the assumption of independence. The proposed particle filter based data fusion algorithm is applied to experimental NDE data to investigate its feasibility.

Khan, T.; Ramuhalli, Pradeep; Dass, Sarat

2011-06-30T23:59:59.000Z

189

Visualization for Non-Destructive Testing  

E-Print Network [OSTI]

Amirkhanov 10 #12;Visualization of Carbon Fiber Reinforced Polymers Reh, A., Plank, B., Kastner, J., Gröller(12): 2906­2915, 2013. #12;#12;#12;Carbon Fiber Reinforced Polymers (CFRP) Fiber bundles with a twill-weave pattern #12;Carbon Fiber Reinforced Polymers (CFRP) Fiber bundles with a twill-weave pattern Epoxy resin

Tanaka, Jiro

190

Early detection of critical material degradation by means of electromagnetic multi-parametric NDE  

SciTech Connect (OSTI)

With an increasing number of power plants operated in excess of their original design service life an early recognition of critical material degradation in components will gain importance. Many years of reactor safety research allowed for the identification and development of electromagnetic NDE methods which detect precursors of imminent damage with high sensitivity, at elevated temperatures and in a radiation environment. Regarding low-alloy heat-resistant steel grade WB 36 (1.6368, 15NiCuMoNb5), effects of thermal and thermo-mechanical aging on mechanical-technological properties and several micromagnetic parameters have been thoroughly studied. In particular knowledge regarding the process of copper precipitation and its acceleration under thermo-mechanical load has been enhanced. Whilst the Cu-rich WB 36 steel is an excellent model material to study and understand aging effects related to neutron radiation without the challenge of handling radioactive specimens in a hot cell, actually neutron-irradiated reactor pressure vessel materials were investigated as well. The neutron fluence experienced and the resulting shift of the ductile-brittle transition temperature were determined electromagnetically, and it was shown that weld and base material can be distinguished from the cladded side of the RPV wall. Low-cycle fatigue of the austenitic stainless steel AISI 347 (1.4550, X6CrNiNb18-10) has been characterized with electromagnetic acoustic transducers (EMATs) at temperatures of up to 300 °C. Time-of-flight and amplitude of the transmitted ultrasound signal were evaluated against the number of load cycles applied and observed as an indication of the imminent material failure significantly earlier than monitoring stresses or strains.

Szielasko, Klaus; Tschuncky, Ralf; Rabung, Madalina; Altpeter, Iris; Dobmann, Gerd [Fraunhofer Institute for Nondestructive Testing (IZFP), Campus E3 1, 66123 Saarbrücken (Germany); Seiler, Georg; Herrmann, Hans-Georg; Boller, Christian [Fraunhofer Institute for Nondestructive Testing (IZFP), Campus E3 1, 66123 Saarbrücken, Germany and Saarland University, Chair of NDT and Quality Assurance, Campus E3 1, 66123 Saarbrücken (Germany)

2014-02-18T23:59:59.000Z

191

On the role of material property gradients in noncontacting thermoelectric NDE  

E-Print Network [OSTI]

On the role of material property gradients in noncontacting thermoelectric NDE Hector Carreon. The thermoelectric power of metals is sensitive to variety of material properties that can affect the measurement the basic appli- cation of thermoelectric materials characterization is metal sorting [1]. However

Nagy, Peter B.

192

Uncertainties in NDE Reliability and Assessing the Impact on RI-ISI  

SciTech Connect (OSTI)

A major thrust in the past 20 years has been to upgrade nondestructive examinations (NDE) for use in inservice inspection (ISI) programs to more effectively manage degradation at operating nuclear power plants. Risk-informed ISI (RI-ISI) is one of the outcomes of this work, and this approach relies heavily on the reliability of NDE, when properly applied, to detect sources of expected degradation. There have been a number of improvements in the reliability of NDE, specifically in ultrasonic testing (UT), through training of examiners, and improved equipment and procedure development. However, the most significant improvements in UT were derived by moving from prescriptive requirements to performance based requirements. Even with these substantial improvements, NDE contains significant uncertainties and RI-ISI programs need to address and accommodate this factor. As part of the work that PNNL is conducting for the U. S. Nuclear Regulatory Commission, Office of Nuclear Regulatory Research, we are examining the impact of these uncertainties on the effectiveness of RI-ISI programs.

Doctor, Steven R.; Anderson, Michael T.

2010-08-01T23:59:59.000Z

193

NDE of Possible Service-Induced PWSCC in Control Rod Drive Mechanism Housings Removed from Service  

SciTech Connect (OSTI)

Studies being conducted at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington are being performed to assess the effectiveness of nondestructive examination (NDE) techniques on removed-from-service control rod drive mechanism (CRDM) nozzles and the associated J-groove attachment welds. This work is being performed to provide information to the United States Nuclear Regulatory Commission (US NRC) on the effectiveness of NDE techniques such as ultrasonic testing (UT), eddy current testing (ET), and visual testing (VT) as related to the in-service inspection of CRDM nozzles and J-groove weldments, and to enhance the knowledge base of primary water stress corrosion cracking (PWSCC) through destructive characterization of the CRDM assemblies. The basic NDE measurements follow standard industry techniques for conducting in-service inspections of CRDM nozzles and the crown of the J-groove welds and buttering. In addition, laboratory-based NDE methods were employed to conduct inspections of the CRDM assemblies, with particular emphasis on the J-groove weld and buttering. This paper describes the NDE measurements that were employed on the two CRDMs to detect and characterize the indications and the analysis of these indications. The two CRDM assemblies were removed from service from the North Anna 2 vessel head, including the CRDM nozzle, the J-groove weld, buttering, and a portion of the ferritic head material. One nozzle contains suspected PWSCC, based on in-service inspection data; the second contains evidence suggesting through-wall leakage, although this was unconfirmed. A destructive test plan is being developed to directly characterize the indications found using nondestructive testing. The results of this destructive testing will be included when the destructive testing is completed.

Cumblidge, Stephen E.; Doctor, Steven R.; Schuster, George J.; Harris, Robert V.; Crawford, Susan L.

2006-09-22T23:59:59.000Z

194

PRELIMINARY ASSESSMENT OF NDE METHODS ON INSPECTION OF HDPE BUTT FUSION PIPING JOINTS FOR LACK OF FUSION WITH VALIDATION FROM MECHANICAL TESTING  

SciTech Connect (OSTI)

Studies at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington, are being conducted to evaluate nondestructive examinations (NDE) coupled with mechanical testing of butt fusion joints in high density polyethylene (HDPE) pipe for assessing lack of fusion. The work provides information to the United States Nuclear Regulatory Commission (NRC) on the effectiveness of volumetric inspection techniques of HDPE butt fusion joints in Section III, Division 1, Class 3, buried piping systems in nuclear power plants. This paper describes results from preliminary assessments using ultrasonic and microwave nondestructive techniques and mechanical testing with the high speed tensile impact test and the bend test for determining joint integrity. A series of butt joints were fabricated in 3408, 12 inch (30.5 cm) IPS DR-11 HDPE material by varying the fusion parameters to create good joints and joints containing a range of lack of fusion conditions. Six of these butt joints were volumetrically examined with time of flight diffraction (TOFD), phased array (PA) ultrasound, and the Evisive microwave system. The outer diameter (OD) weld beads were removed for microwave evaluation and the pipes ultrasonically re-evaluated. In two of the six pipes both the outer and inner diameter (ID) weld beads were removed and the pipe joints re-evaluated. Several of the pipes were sectioned and the joints destructively evaluated with the following techniques: high speed tensile test, bend test, and focused immersion ultrasound on a joint section removed from the pipe coupled with slicing through the joint and examining the revealed surfaces. The fusion parameters, nondestructive, and destructive evaluation results will be correlated to validate the effectiveness of what each NDE technology detects and what each does not detect. This is an initial limited study which will aid in identifying key future work.

Crawford, Susan L.; Doctor, Steven R.; Cinson, Anthony D.; Watts, Michael W.; Moran, Traci L.; Anderson, Michael T.

2010-07-22T23:59:59.000Z

195

DISCLAIMER : UNCONTROLLED WHEN PRINTED - PLEASE CHECK THE STATUS...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

MAI Machine Assembly and Installation (Section) MQP Management and Quality Program NDE Non-Destructive test and Examination PIA Protection Important Activity PIC Protection...

196

Microsoft Word - Technical Summary of CFN TCWS-FD-4 - Final ...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

1.0 dated 191214 33 o Extensive knowledge of Welding and Non-Destructive Examination (NDE) techniques, o Experience in Failure mode, effects and criticality analysis (FMECA)....

197

Evaluation of silicon-nitride ceramic valves.  

SciTech Connect (OSTI)

Silicon-nitride ceramic valves can improve the performance of both light- and heavy-duty automotive engines because of the superior material properties of silicon nitrides over current metal alloys. However, ceramics are brittle materials that may introduce uncertainties in the reliability and durability of ceramic valves. As a result, the lifetime of ceramic valves are difficult to predict theoretically due to wide variations in the type and distribution of microstructural flaws in the material. Nondestructive evaluation (NDE) methods are therefore required to assess the quality and reliability of these valves. Because ceramic materials are optically translucent and the strength-limiting flaws are normally located near the valve surface, a laser-scatter method can be used for NDE evaluation of ceramic valves. This paper reviews the progress in the development of this NDE method and its application to inspect silicon-nitride ceramic valves at various stages of manufacturing and bench and engine tests.

Sun, J. G.; Zhang, J. M.; Andrews, M. J.; Tretheway, J. S.; Phillips, N. S .L.; Jensen, J. A.; Nuclear Engineering Division; Univ. of Texas; Caterpillar, Inc.

2008-01-01T23:59:59.000Z

198

Radial reflection diffraction tomography  

DOE Patents [OSTI]

A wave-based tomographic imaging method and apparatus based upon one or more rotating radially outward oriented transmitting and receiving elements have been developed for non-destructive evaluation. At successive angular locations at a fixed radius, a predetermined transmitting element can launch a primary field and one or more predetermined receiving elements can collect the backscattered field in a "pitch/catch" operation. A Hilbert space inverse wave (HSIW) algorithm can construct images of the received scattered energy waves using operating modes chosen for a particular application. Applications include, improved intravascular imaging, bore hole tomography, and non-destructive evaluation (NDE) of parts having existing access holes.

Lehman, Sean K.

2012-12-18T23:59:59.000Z

199

Radial Reflection diffraction tomorgraphy  

DOE Patents [OSTI]

A wave-based tomographic imaging method and apparatus based upon one or more rotating radially outward oriented transmitting and receiving elements have been developed for non-destructive evaluation. At successive angular locations at a fixed radius, a predetermined transmitting element can launch a primary field and one or more predetermined receiving elements can collect the backscattered field in a "pitch/catch" operation. A Hilbert space inverse wave (HSIW) algorithm can construct images of the received scattered energy waves using operating modes chosen for a particular application. Applications include, improved intravascular imaging, bore hole tomography, and non-destructive evaluation (NDE) of parts having existing access holes.

Lehman, Sean K

2013-11-19T23:59:59.000Z

200

Assessment of NDE Methods on Inspection of HDPE Butt Fusion Piping Joints for Lack of Fusion with Validation from Mechanical Testing  

SciTech Connect (OSTI)

Studies at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington, are being conducted to evaluate nondestructive examinations (NDE) coupled with mechanical testing of butt fusion joints in high-density polyethylene (HDPE) pipe for assessing lack of fusion. The work provides information to the U.S. Nuclear Regulatory Commission (NRC) on the effectiveness of volumetric inspection techniques of HDPE butt fusion joints in Section III, Division 1, Class 3, buried piping systems in nuclear power plants. This paper describes results from preliminary assessments using ultrasonic and microwave nondestructive techniques and mechanical testing with the high-speed tensile impact test and the side-bend test for determining joint integrity. A series of butt joints were fabricated in 3408, 12-in. IPS DR-11 HDPE material by varying the fusion parameters to create good joints and joints containing a range of lack-of-fusion conditions. Six of these butt joints were volumetrically examined with time-of-flight diffraction (TOFD), phased-array (PA) ultrasound, and the Evisive microwave system. The outer-diameter weld beads were removed for the microwave inspection. In two of the four pipes, both the outer and inner weld beads were removed and the pipe joints re-evaluated. The pipes were sectioned and the joints destructively evaluated with the side-bend test by cutting portions of the fusion joint into slices that were planed and bent. The last step in this limited study will be to correlate the fusion parameters, nondestructive, and destructive evaluation results to validate the effectiveness of what each NDE technology detects and what each does not detect. The results of the correlation will be used in identifying any future work that is needed.

Anderson, Michael T.; Cinson, Anthony D.; Crawford, Susan L.; Doctor, Steven R.; Moran, Traci L.; Watts, Michael W.

2010-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "non-destructive evaluation nde" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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to obtain the most current and comprehensive results.


201

On-Line Weld NDE with IR Thermography  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

202

On-Line Weld NDE with IR Thermography  

Broader source: Energy.gov [DOE]

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

203

Nondestructive evaluation of silicon-nitride ceramic valves from engine duration test.  

SciTech Connect (OSTI)

In this study, we investigated impact and wear damage in silicon-nitride ceramic valves that were subjected to an engine duration test in a natural-gas engine. A high-speed automated laser-scattering system was developed for the nondestructive evaluation (NDE) of 10 SN235P silicon-nitride valves. The NDE system scans the entire valve surface and generates a two-dimensional scattering image that is used to identify location, size and relative severity of subsurface damage in the valves. NED imaging data were obtained at before and at 100 and 500 hours of the engine duration test. The NDE data were analyzed and compared with surface photomicrographs. Wear damage was found in the impact surface of all valves, expecially for exhaust valves. However, the NDE examination did not detect subsurface damage such as cracks or spalls in these engine-tested valves.

Sun, J. G.; Trethewey, J. S.; Vanderspiegle, N. N.; Jensen, J. A.; Nuclear Engineering Division; Caterpillar, Inc.

2008-01-01T23:59:59.000Z

204

Online Weld Quality NDE & Control with IR Thermography  

Broader source: Energy.gov [DOE]

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

205

Application of Noise Cancelling and Damage Detection Algorithms in NDE of Concrete Bridge Decks Using Impact Signals  

SciTech Connect (OSTI)

Delamination is a commonly observed distress in concrete bridge decks. Among all the delamination detection methods, acoustic methods have the advantages of being fast and inexpensive. In traditional acoustic inspection methods, the inspector drags a chain along or hammers on the bridge deck and detects delamination from the 'hollowness' of the sounds. The signals are often contaminated by ambient traffic noise and the detection of delamination is highly subjective. This paper describes the performance of an impact-bases acoustic NDE method where the traffic noise was filtered by employing a noise cancelling algorithm and where subjectivity was eliminated by introducing feature extraction and pattern recognition algorithms. Different algorithms were compared and the best one was selected in each category. The comparison showed that the modified independent component analysis (ICA) algorithm was most effective in cancelling the traffic noise and features consisting of mel-frequency cepstral coefficients (MFCCs) had the best performance in terms of repeatability and separabillty. The condition of the bridge deck was then detected by a radial basis function (RBF) neural network. The performance of the system was evaluated using both experimental and field data. The results show that the selected algorithms increase the noise robustness of acoustic methods and perform satisfactorily if the training data is representative.

Zhang, Gang; Harichandran, Ronald S.; Ramuhalli, Pradeep

2011-09-13T23:59:59.000Z

206

Safety Related Applications (Sensors and Instrumentation and NDE) - Nuclear  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

DOE Office of DOE Office of Nuclear Energy, Science, and Technology Capabilities Sensors and Instrumentation and Nondestructive Evaluation Overview Energy System Applications Safety-Related Applications Overview DOE Office of Nuclear Energy, Science, and Technology Nuclear Regulatory Commission National Aeronautics and Space Administration (NASA) Homeland Security Applications Biomedical Applications Millimiter Wave Group Papers Other NPNS Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Sensors and Instrumentation and Nondestructive Evaluation Safety Related Applications Bookmark and Share DOE Office of Nuclear Energy, Science, and Technology The objective of this Nuclear Energy Plant Optimization Project is to

207

District of Columbia | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

30, 2012 30, 2012 Light Water Reactor Sustainability Program - Non-Destructive Evaluation R&D Roadmap for Determining Remaining Useful Life of Aging Cables in Nuclear Power Plants The purpose of the non-destructive evaluation (NDE) R&D Roadmap for Cables is to support the Materials Aging and Degradation (MAaD) R&D pathway. A workshop was held to gather subject matter experts to develop the NDE R&D Roadmap for Cables. The focus of the workshop was to identify the technical gaps in detecting aging cables and predicting their remaining life expectancy. The workshop was held in Knoxville, Tennessee, on July 30, 2012, at Analysis and Measurement Services Corporation (AMS) headquarters. September 30, 2012 Roadmap for Nondestructive Evaluation of Reactor Pressure Vessel Research

208

Review of NRC-funded programs on NDE at Pacific Northwest Laboratory. [PWR; BWR  

SciTech Connect (OSTI)

There are currently four major NDT related programs in progress at PNL which are funded by the US Nuclear Regulatory Commission. These programs are Integration of NDE and Fracture Mechanics Program, Development of a Real-Time SAFT-UT System for the Inservice Inspection of LWRs, Acoustic Emission - Flaw Relationships for Inservice Monitoring of Nuclear Reactor Pressure Boundaries, and Steam Generator Integrity Program/Steam Generator Group Project. This paper will discuss and present an overview of each program and highlight the more significant accomplishments obtained to date. All of these programs have been funded for several years and are scheduled for completion in 1985 or 1986.

Doctor, S.R.

1983-04-01T23:59:59.000Z

209

Development of nondestructive evaluation methods for ceramic coatings.  

SciTech Connect (OSTI)

Various nondestructive evaluation (NDE) technologies are being developed to study the use of ceramic coatings on components in the hot-gas path of advanced low-emission gas-fired turbines. The types of ceramic coatings include thermal barrier coatings (TBCs) and environmental barrier coatings (EBCs). TBCs are under development for vanes, blades, and combustor liners to allow hotter gas-path temperatures, and EBCs are under development to reduce environmental damage to high-temperature components made of ceramic matrix composites. The NDE methods will be used to (a) provide data to assess the reliability of new coating application processes, (b) identify defective components that could cause unscheduled outages, (c) track growth rates of defects during component use in engines, and (d) allow rational judgment for replace/repair/re-use decisions regarding components. Advances in TBC application, both electron beam-physical vapor deposition (EB-PVD) and air plasma spraying (APS), are allowing higher temperatures in the hot-gas path. However, as TBCs become ''prime reliant,'' their condition at scheduled or unscheduled outages must be known. NDE methods are under development to assess the condition of the TBC for pre-spall conditions. EB-PVD test samples with up to 70 thermal cycles have been studied by a newly developed method involving polarized laser back-scatter NDE. Results suggest a correlation between the NDE laser data and the TBC/bond-coat topography. This finding is important because several theories directed toward understanding the pre-spall condition suggest that the topography in the thermally grown oxide layer changes significantly as a function of the number of thermal cycles. Tests have also been conducted with this NDE method on APS TBCs. Results suggest that the pre-spall condition is detected for these coatings. One-sided, high-speed thermal imaging also has shown promise for NDE of APS coatings. Testing of SiC/SiC composites for combustor liners has demonstrated that environmental EBCs are required to reduce oxidation-induced recession rates. NDE technologies, primarily one-sided and through-thickness thermal imaging, are under development to detect delaminations and degradation of EBCs. Recent results have demonstrated that NDE thermal image data correctly detected pre-spall regions of a barium-strontium-alumino-silicate coating on melt-infiltrated SiC/SiC. The NDE data were verified with field test data from a combustor liner in a 4.5 MW(e) natural-gas-fired turbine. The shape of the spalled EBC region and the growth of the spalled EBC region after various engine run times were correlated with boroscope image data from field tests. An effort has recently been started to address NDE development for oxide/oxide ceramic composites with an EBC. We will discuss the NDE methods under development for TBCs, recent NDE test results from thermally cycled TBCs, NDE results from EBCs on SiC/SiC, and the new effort directed toward oxide/oxide materials.

Ellingson, W. A.; Deemer, C.; Sun, J. G.; Erdman, S.; Muliere, D.; Wheeler, B.

2002-04-29T23:59:59.000Z

210

Concurrent ultrasonic weld evaluation system  

DOE Patents [OSTI]

A system for concurrent, non-destructive evaluation of partially completed welds for use in conjunction with an automated welder is disclosed. The system utilizes real time, automated ultrasonic inspection of a welding operation as the welds are being made by providing a transducer which follows a short distance behind the welding head. Reflected ultrasonic signals are analyzed utilizing computer based digital pattern recognition techniques to discriminate between good and flawed welds on a pass by pass basis. The system also distinguishes between types of weld flaws. 5 figs.

Hood, D.W.; Johnson, J.A.; Smartt, H.B.

1987-12-15T23:59:59.000Z

211

PNNL-21731  

Broader source: Energy.gov (indexed) [DOE]

731 731 Prepared for the U.S. Department of Energy under Contract DE-AC05-76RL01830 Light Water Reactor Sustainability (LWRS) Program - Non-Destructive Evaluation (NDE) R&D Roadmap for Determining Remaining Useful Life of Aging Cables in Nuclear Power Plants KL Simmons HM Hashemian P Ramuhalli R Konnick DL Brenchley S Ray JB Coble September 2012 PNNL-21731 Light Water Reactor Sustainability (LWRS) Program - Non-Destructive Evaluation (NDE) R&D Roadmap for Determining Remaining Useful Life of Aging Cables in Nuclear Power Plants KL Simmons HM Hashemian 1 P Ramuhalli R Konnick 2 DL Brenchley S Ray 3 JB Coble September 2012 Prepared for the U.S. Department of Energy under Contract DE-AC05-76RL01830 Pacific Northwest National Laboratory

212

ORNL_TM360_Concrete_NDE_Roadmap  

Broader source: Energy.gov (indexed) [DOE]

60 60 Light Water Reactor Sustainability Nondestructive Evaluation for Concrete Research and Development Roadmap September 2012 Prepared by Dwight Clayton Michael Hileman DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via the U.S. Department of Energy (DOE) Information Bridge. Web site http://www.osti.gov/bridge Reports produced before January 1, 1996, may be purchased by members of the public from the following source. National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 Telephone 703-605-6000 (1-800-553-6847) TDD 703-487-4639 Fax 703-605-6900 E-mail info@ntis.gov Web site http://www.ntis.gov/support/ordernowabout.htm Reports are available to DOE employees, DOE contractors, Energy Technology Data Exchange

213

ÂżA dĂłnde se va la energĂ­a?  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ÂżA dĂłnde se va la energĂ­a? ÂżA dĂłnde se va la energĂ­a? SĂłlo aproximadamente el 14% -26% de la energĂ­a del combustible que usted pone en su tanque se usa para mover su coche o operar accesorios Ăștiles, como el aire acondicionado. El resto de la energĂ­a es perdida en ineficiencias del motor, de la lĂ­Ă­nea de conducciĂłn y al estar a ralentĂ­. Por lo tanto, el potencial para mejorar la eficiencia del combustible con tecnologĂ­as avanzadas es enorme. Combinadas Ciudad Carretera Conducir en Ciudad Los requerimientos de energĂ­a mostrados en el diagrama se calcularon conduciendo por la ciudad en el modo para-avanzar usando el procedimiento de la EPA FTP-75 Test. Perdidas de Motor En vehĂ­culos propulsados por gasolina, gran parte de la energĂ­a del combustible se pierde en el motor, primordialmente al calentarse. Pequeñas

214

The potential for imaging of in situ damage in inflatable space structures.  

SciTech Connect (OSTI)

NASA is investigating the use of inflatable habitat structures for orbital transfer and planetary applications. Since space structures are vulnerable to damage from micrometeoroid and orbital debris, it is important to investigate means of detecting such damage. This study is an investigation into methods for performing non-destructive evaluation (NDE) on inflatable habitat modules. Results of this work showed that various electromagnetic imaging modalities from microwaves to terahertz imaging have the greatest potential for a viable, portable, NDE tool which could possibly be deployed aboard an inflatable habitat module.

Madaras, Eric I. (NASA Langley Research Center, Hampton, VA)

2007-07-01T23:59:59.000Z

215

Thermal NDE techniques-from photoacoustics to thermosonics  

Science Journals Connector (OSTI)

The evolution of thermal wave imaging and materials characterization is traced from its origins during the time of the First International Workshop on Photoacoustics and Photothermal Phenomena in Ames Iowa in 1979 to the present and with an eye to the future. In the early days the heat sources consisted of amplitude-modulated lasers focused to a spot and step-scanned across the surface of the object under evaluation. A variety of lock-in detection schemes were used including microphones in gas cells (photoacoustics) laser optical probes (the mirage effect) photothermal defection thermoreflectance and infrared (IR) detection. With the commercial availability of IR cameras rapid and wide-area synchronous imaging became possible both in the frequency domain (lock-in imaging) and the time-domain (box-car imaging). Recently the photoacoustic technique has been “flipped ” with a pulse of sound being used as the energy source and with an IR camera monitoring the subsequent photons emitted in the vicinity of a surface or subsurface defect. This new technique (thermosonics) is described along with selected applications to crack detection in a variety of materials and objects.

Robert L. Thomas

2002-01-01T23:59:59.000Z

216

Development of a Remotely Operated NDE System for Inspection of Hanford's Double Shell Waste Tank Knuckle Regions  

SciTech Connect (OSTI)

This report documents work performed at the PNNL in FY01 to support development of a Remotely Operated NDE (RONDE) system capable of inspecting the knuckle region of Hanford's DSTs. The development effort utilized commercial off-the-shelf (COTS) technology wherever possible and provided a transport and scanning device for implementing the SAFT and T-SAFT techniques.

Pardini, Allan F.; Alzheimer, James M.; Crawford, Susan L.; Diaz, Aaron A.; Gervais, Kevin L.; Harris, Robert V.; Riechers, Douglas M.; Samuel, Todd J.; Schuster, George J.; Tucker, Joseph C.; Roberts, R. A.

2001-09-28T23:59:59.000Z

217

Progress in evaluation and improvement in nondestructive examination reliability for inservice inspection of Light Water Reactors (LWRs) and characterize fabrication flaws in reactor pressure vessels  

SciTech Connect (OSTI)

This paper is a review of the work conducted under two programs. One (NDE Reliability Program) is a multi-year program addressing the reliability of nondestructive evaluation (NDE) for the inservice inspection (ISI) of light water reactor components. This program examines the reliability of current NDE, the effectiveness of evolving technologies, and provides assessments and recommendations to ensure that the NDE is applied at the right time, in the right place with sufficient effectiveness that defects of importance to structural integrity will be reliably detected and accurately characterized. The second program (Characterizing Fabrication Flaws in Reactor Pressure Vessels) is assembling a data base to quantify the distribution of fabrication flaws that exist in US nuclear reactor pressure vessels with respect to density, size, type, and location. These programs will be discussed as two separate sections in this report. 4 refs., 7 figs.

Doctor, S.R.; Bowey, R.E.; Good, M.S.; Friley, J.R.; Kurtz, R.J.; Simonen, F.A.; Taylor, T.T.; Heasler, P.G.; Andersen, E.S.; Diaz, A.A.; Greenwood, M.S.; Hockey, R.L.; Schuster, G.J.; Spanner, J.C.; Vo, T.V.

1991-10-01T23:59:59.000Z

218

Evaluation of Nondestructive Assay/Nondestructive Examination Capabilities for Department of Energy Spent Nuclear Fuel  

SciTech Connect (OSTI)

This report summarizes an evaluation of the potential use of nondestructive assay (NDA) and nondestructive examination (NDE) technologies on DOE spent nuclear fuel (SNF). It presents the NDA/NDE information necessary for the National Spent Nuclear Fuel Program (NSNFP) and the SNF storage sites to use when defining that role, if any, of NDA/NDE in characterization and certification processes. Note that the potential role for NDA/NDE includes confirmatory testing on a sampling basis and is not restricted to use as a primary, item-specific, data collection method. The evaluation does not attempt to serve as a basis for selecting systems for development or deployment. Information was collected on 27 systems being developed at eight DOE locations. The systems considered are developed to some degree, but are not ready for deployment on the full range of DOE SNF and still require additional development. The system development may only involve demonstrating performance on additional SNF, packaging the system for deployment, and developing calibration standards, or it may be as extensive as performing additional basic research. Development time is considered to range from one to four years. We conclude that NDA/NDE systems are capable of playing a key role in the characterization and certification of DOE SNF, either as the primary data source or as a confirmatory test. NDA/NDE systems will be able to measure seven of the nine key SNF properties and to derive data for the two key properties not measured directly. The anticipated performance goals of these key properties are considered achievable except for enrichment measurements on fuels near 20% enrichment. NDA/NDE systems can likely be developed to measure the standard canisters now being considered for co-disposal of DOE SNF. This ability would allow the preparation of DOE SNF for storage now and the characterization and certification to be finalize later.

Luptak, A.J.; Bulmahn, K.D.

1998-09-01T23:59:59.000Z

219

Ultrasonic Phased Array Evaluation of Control Rod Drive Mechanism (CRDM) Nozzle Interference Fit and Weld Region  

SciTech Connect (OSTI)

In this investigation, non-destructive and destructive testing were used to evaluate potential boric acid leakage paths around an Alloy 600 CRDM penetration (Nozzle 63) from the North Anna Unit 2 reactor pressure vessel head that was removed from service in 2003. For this investigation, Nozzle 63 was examined using phased array ultrasonic testing. Prior to examining Nozzle 63, a CRDM penetration mockup with known notches and boric acid deposits was used to assess probe sensitivity, resolution and calibration. Following the non-destructive testing of Nozzle 63, the nozzle was destructively examined to visually assess the leak paths. These destructive and nondestructive results are compared and results are presented. The results of this investigation may be used by NRC to evaluate licensees’ volumetric leak path assessment methodologies and to support regulatory inspection requirements.

Cinson, Anthony D.; Crawford, Susan L.; MacFarlan, Paul J.; Mathews, Royce; Hanson, Brady D.; Diaz, Aaron A.

2011-10-01T23:59:59.000Z

220

Magnetic NDE measurements on 410 stainless steel: An on-site and laboratory evaluation  

Science Journals Connector (OSTI)

It is of practical interest to infer residual-stress information from the gas turbine compressor diaphragm (an assembly of a row of airfoils welded into inner and outer shrouds) using nondestructive methods. Residual stresses can build up as the airfoils are welded into shrouds. Magnetic hysteresis and Barkhausen effect measurements are particularly suitable for this purpose due to their high sensitivities to the stress-induced magnetic anisotropies. We report here on laboratory calibration measurements including a qualitative comparison with theoretical predictions. Field measurements are compared with results obtained using destructive techniques.

M. J. Johnson; D. C. Jiles; C. C. H. Lo; P. Zombo; B. Zhu

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Investigation of a Novel NDE Method for Monitoring Thermomechanical Damage and Microstructure Evolution in Ferritic-Martensitic Steels for Generation IV Nuclear Energy Systems  

SciTech Connect (OSTI)

The main goal of the proposed project is the development of validated nondestructive evaluation (NDE) techniques for in situ monitoring of ferritic-martensitic steels like Grade 91 9Cr-1Mo, which are candidate materials for Generation IV nuclear energy structural components operating at temperatures up to ~650{degree}C and for steam-generator tubing for sodium-cooled fast reactors. Full assessment of thermomechanical damage requires a clear separation between thermally activated microstructural evolution and creep damage caused by simultaneous mechanical stress. Creep damage can be classified as "negligible" creep without significant plastic strain and "ordinary" creep of the primary, secondary, and tertiary kind that is accompanied by significant plastic deformation and/or cavity nucleation and growth. Under negligible creep conditions of interest in this project, minimal or no plastic strain occurs, and the accumulation of creep damage does not significantly reduce the fatigue life of a structural component so that low-temperature design rules, such as the ASME Section III, Subsection NB, can be applied with confidence. The proposed research project will utilize a multifaceted approach in which the feasibility of electrical conductivity and thermo-electric monitoring methods is researched and coupled with detailed post-thermal/creep exposure characterization of microstructural changes and damage processes using state-of-the-art electron microscopy techniques, with the aim of establishing the most effective nondestructive materials evaluation technique for particular degradation modes in high-temperature alloys that are candidates for use in the Next Generation Nuclear Plant (NGNP) as well as providing the necessary mechanism-based underpinnings for relating the two. Only techniques suitable for practical application in situ will be considered. As the project evolves and results accumulate, we will also study the use of this technique for monitoring other GEN IV materials. Through the results obtained from this integrated materials behavior and NDE study, new insight will be gained into the best nondestructive creep and microstructure monitoring methods for the particular mechanisms identified in these materials. The proposed project includes collaboration with a national laboratory partner and the results will also serve as a foundation to guide the efforts of scientists in the DOE laboratory, university, and industrial communities concerned with the technological challenges of monitoring creep and microstructural evolution in materials planned to be used in Generation IV Nuclear Energy Systems.

Nagy, Peter

2013-09-30T23:59:59.000Z

222

Report number: 2011:17 ISSN: 2000-0456 Availableatwww.stralsakerhetsmyndigheten.se  

E-Print Network [OSTI]

about new applied Non-Destructive Engineering (NDE) techniques and their efficiency. One area and the limitations of NDE methods used for SHM of piping. Objectives The first part of the project is to investigate. The second part of the investigation is to review the NDE methods and map their capabilities and limitations

223

NDE and DE of PWSCC Found in the J-Groove Weld of a Removed-From-Service Control Rod Drive Mechanism  

SciTech Connect (OSTI)

Studies conducted at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington focused on assessing the effectiveness of nondestructive examination (NDE) techniques for inspecting control rod drive mechanism (CRDM) nozzles and J-groove weldments. The primary objective of this work is to provide information to the United States Nuclear Regulatory Commission (US NRC) on the effectiveness of NDE methods as related to the in-service inspection of CRDM nozzles and J-groove weldments, and to enhance the knowledge base of primary water stress corrosion cracking (PWSCC) through destructive characterization of the CRDM assemblies. Two CRDM assemblies were removed from service, decontaminated, and then used in a series of laboratory NDE and DE measurements; this report addresses the following questions: 1) What did each NDE technique detect?, 2) What did each NDE technique miss?, 3) How accurately did each NDE technique characterize the detected flaws?, and finally 4) What were the basis for the NDE techniques performance? Two CRDM assemblies including the CRDM nozzle, the J-groove weld, buttering, and a portion of the ferritic head material were selected for this study. This paper focuses on a CRDM assembly that contained suspected PWSCC, based on in-service inspection data and through-wall leakage. The laboratory NDE measurements used to examine the CRDM assembly followed standard industry techniques for conducting in-service inspections of CRDM nozzles and the crown of the J-groove welds and buttering. These techniques included eddy current testing, time of flight diffraction ultrasound, and penetrant testing. In addition, other laboratory-based NDE methods were employed to conduct inspections of the CRDM assembly with particular emphasis on inspecting the J-groove weld and buttering. These techniques included volumetric ultrasonic inspection of the J-groove weld metal, visual testing via replicant material of the J-groove weld and high resolution photography of the J-groove weld crown and buttering. The results from these NDE studies were used to guide the development of the destructive characterization plan. The NDE studies found several crack-like indications. The NDE and DE studies determined that one of these was a through-weld radially-oriented PWSCC crack in the wetted surface of the J-groove weld, located at the transition point between the weld and the buttering. The crack was 6 mm long on the surface and quickly grew to 25 mm long at a depth of 8 mm, covering the length of the weld between the penetration tube and the carbon steel. The NDE studies found that only ET was able to detect the through-weld crack. The crack was oriented poorly for the ultrasonic testing, and was too tight for accurate PT or VT. The ET voltage response of the flaw was 30% that of a deep EDM notch. The DE performed on the crack consisted of slicing the crack into thin sections, polishing the sections, and then using optical and scanning electron microscopy (SEM) to characterize the crack. DE shows the crack was PWSCC and that it initiated on the wetted surface, grew and expanded through the weld metal, and exited into the annulus. The SEM examinations showed the crack followed the weld grain boundaries as it progressed through the weld. The crack was branched and discontinuous along its length.

Cumblidge, Stephen E.; Doctor, Steven R.; Schuster, George J.; Harris, Rob; Crawford, Susan L.; Seffens, Rob J.; Toloczko, Mychailo B.; Bruemmer, Stephen M.

2008-01-01T23:59:59.000Z

224

Properties of Guided Waves in Composite Plates, and Implications for NDE  

Science Journals Connector (OSTI)

Guided waves are potentially very useful for the rapid NDE of plate structures. In the aerospace industry in particular they have been proposed for the structural health monitoring of carbon fibre skin panels in either an active or a passive configuration. In an active configuration a guided wave is deliberately generated and then later received after it has travelled through the structure; in a passive configuration an acoustic emission sensor is used to listen to sound created by the structure itself. The successful development of these ideas depends on a good knowledge of the properties of the guided waves yet it has been found that the properties of guided waves in such materials are very much more complicated than those in a simple metal skin. The complications include steering of the direction of the group velocity by the anisotropy of the plate and attenuation because of damping of the matrix material and scattering by the fibres. The authors have studied these phenomena both analytically and experimentally. This paper presents an overview of the findings and identifies the key implications for practical developments of structural health monitoring techniques.

M. J. S. Lowe; G. Neau; M. Deschamps

2004-01-01T23:59:59.000Z

225

Data fusion for automated non-destructive inspection  

Science Journals Connector (OSTI)

...which level to undertake fusion: data-level processing...is to say of identical type (for our purposes...independently, feature-level fusion becomes necessary to...from different probe types. Given that the sought output of the data fusion processing is a probability...

2014-01-01T23:59:59.000Z

226

Strongest non-destructive magnetic field: world record set at...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

behave under the influence of very high magnetic fields, to research into the quantum behavior of phase transitions in solids. Researchers can explore extremes of low...

227

Light Water Reactor Sustainability Program - Non-Destructive...  

Broader source: Energy.gov (indexed) [DOE]

rates depending on temperature or radiation dose rate. However, cross-linked polyethylene has been shown in laboratory experiments to experience an inverse temperature...

228

Data fusion for automated non-destructive inspection  

Science Journals Connector (OSTI)

...inspection of titanium aerospace jet engine disc forgings...Figure 1. A titanium aerospace jet engine disc to be...Engineering and Physical Sciences Research Council (EPSRC...grain noise modeling: recent applications to engine...Society. Engineering Advances: New Opportunities...

2014-01-01T23:59:59.000Z

229

Non-Destructive Neutron Imaging to Analyze Particulate Filters  

Broader source: Energy.gov (indexed) [DOE]

Science Division Hassina Z. Bilheux Sophie Voisin Oak Ridge National Laboratory Neutron Scattering Science Division Jens Gregor University of Tennessee - Knoxville Dept....

230

Non-destructive testing of composite plates by holographic vibrometry  

E-Print Network [OSTI]

We report on a wide-field optical monitoring method for revealing local delaminations in sandwich-type composite plates at video-rate by holographic vibrometry. Non-contact measurements of low frequency flexural waves is performed with time-averaged heterodyne holography. It enables narrowband imaging of local out-of-plane nanometric vibration amplitudes under sinusoidal excitation, and reveals delamination defects, which cause local resonances of flexural waves. The size of the defect can be estimated from the first resonance frequency of the flexural wave and the mechanical parameters of the observed layer of the composite plate.

Bruno, Francois; Prada, Claire; Lamboul, Benjamin; Passilly, Bruno; Atlan, Michael

2014-01-01T23:59:59.000Z

231

Non-destructive component separation using infrared radiant energy  

DOE Patents [OSTI]

A method for separating a first component and a second component from one another at an adhesive bond interface between the first component and second component. Typically the method involves irradiating the first component with infrared radiation from a source that radiates substantially only short wavelengths until the adhesive bond is destabilized, and then separating the first component and the second component from one another. In some embodiments an assembly of components to be debonded is placed inside an enclosure and the assembly is illuminated from an IR source that is external to the enclosure. In some embodiments an assembly of components to be debonded is simultaneously irradiated by a multi-planar array of IR sources. Often the IR radiation is unidirectional. In some embodiments the IR radiation is narrow-band short wavelength infrared radiation.

Simandl, Ronald F. (Knoxville, TN); Russell, Steven W. (Knoxville, TN); Holt, Jerrid S. (Knoxville, TN); Brown, John D. (Harriman, TN)

2011-03-01T23:59:59.000Z

232

Non-destructive imaging of an individual protein  

SciTech Connect (OSTI)

Imaging a single biomolecule at atomic resolution without averaging over different conformations is the ultimate goal in structural biology. We report recordings of a protein at nanometer resolution obtained from one individual ferritin by means of low-energy electron holography. One single protein could be imaged for an extended period of time without any sign of radiation damage. Since the fragile protein shell encloses a robust iron cluster, the holographic reconstructions could also be cross-validated against transmission electron microscopy images of the very same molecule by imaging its iron core.

Longchamp, J.-N.; Latychevskaia, T.; Escher, C.; Fink, H.-W. [Physics Institute, University of Zurich, Winterthurerstrasse 190, 8057 Zurich (Switzerland)

2012-08-27T23:59:59.000Z

233

Simultaneous Parametric Confidence Bands for Cumulative Distributions from Censored Data  

E-Print Network [OSTI]

), a function that is used to assess nondestructive evaluation (NDE) capability. Keywords: Bootstrap, likelihood example is the need to quantify nondestructive evaluation (NDE) capability. NDE methods are used

234

A Destructive Validation of NDE Responses of Service-Induced PWSCC Found in North Anna 2 Control Rod Drive Nozzle 31  

SciTech Connect (OSTI)

Studies conducted at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington focused on assessing the effectiveness of nondestructive examination (NDE) techniques for inspecting control rod drive mechanism (CRDM) nozzles and J-groove weldments. The primary objective of this work is to provide information to the United States Nuclear Regulatory Commission (NRC) on the effectiveness of NDE methods as related to the in-service inspection of CRDM nozzles and J-groove weldments, and to enhance the knowledge base of primary water stress corrosion cracking (PWSCC) through destructive characterization of the CRDM assemblies.

Cumblidge, Stephen E.; Doctor, Steven R.; Schuster, George J.; Harris, Robert V.; Crawford, Susan L.; Seffens, Rob J.; Toloczko, Mychailo B.; Bruemmer, Stephen M.; Moyer, C.

2009-07-01T23:59:59.000Z

235

Wireless Self-powered Visual and NDE Robotic Inspection System for Live Gas Distribution Mains  

SciTech Connect (OSTI)

Carnegie Mellon University (CMU) under contract from Department of Energy/National Energy Technology Laboratory (DoE/NETL) and co-funding from the Northeast Gas Association (NGA), has completed the overall system design of the next-generation Explorer-II (X-II) live gas main NDE and visual inspection robot platform. The design is based on the Explorer-I prototype which was built and field-tested under a prior (also DoE- and NGA co-funded) program, and served as the validation that self-powered robots under wireless control could access and navigate live natural gas distribution mains. The X-II system design ({approx}8 ft. and 66 lbs.) was heavily based on the X-I design, yet was substantially expanded to allow the addition of NDE sensor systems (while retaining its visual inspection capability), making it a modular system, and expanding its ability to operate at pressures up to 750 psig (high-pressure and unpiggable steel-pipe distribution mains). A new electronics architecture and on-board software kernel were added to again improve system performance. A locating sonde system was integrated to allow for absolute position-referencing during inspection (coupled with external differential GPS) and emergency-locating. The power system was upgraded to utilize lithium-based battery-cells for an increase in mission-time. The system architecture now relies on a dual set of end camera-modules to house the 32-bit processors (Single-Board Computer or SBC) as well as the imaging and wireless (off-board) and CAN-based (on-board) communication hardware and software systems (as well as the sonde-coil and -electronics). The drive-module (2 ea.) are still responsible for bracing (and centering) to drive in push/pull fashion the robot train into and through the pipes and obstacles. The steering modules and their arrangement, still allow the robot to configure itself to perform any-angle (up to 90 deg) turns in any orientation (incl. vertical), and enable the live launching and recovery of the system using custom fittings and a (to be developed) launch-chamber/-tube. The battery modules are used to power the system, by providing power to the robot's bus. The support modules perform the functions of centration for the rest of the train as well as odometry pickups using incremental encoding schemes. The electronics architecture is based on a distributed (8-bit) microprocessor architecture (at least 1 in ea. module) communicating to a (one of two) 32-bit SBC, which manages all video-processing, posture and motion control as well as CAN and wireless communications. The operator controls the entire system from an off-board (laptop) controller, which is in constant wireless communication with the robot train in the pipe. The sensor modules collect data and forward it to the robot operator computer (via the CAN-wireless communications chain), who then transfers it to a dedicated NDE data-storage and post-processing computer for further (real-time or off-line) analysis. CMU has fully designed every module in terms of the mechanical, electrical and software elements (architecture only). Substantial effort has gone into pre-prototyping to uncover mechanical, electrical and software issues for critical elements of the design. Design requirements for sensor-providers were also detailed and finalized and provided to them for inclusion in their designs. CMU is expecting to start 2006 with a detailed design effort for both mechanical and electrical components, followed by procurement and fabrication efforts in late winter/spring 2006. The assembly and integration efforts will occupy all of the spring and summer of 2006. Software development will also be a major effort in 2006, and will result in porting and debugging of code on the module- and train-levels in late summer and Fall of 2006. Final pipe mock-up testing is expected in late fall and early winter 2006 with an acceptance demonstration of the robot train (with a sensor-module mock-up) planned to DoE/NGA towards the end of 2006.

Susan Burkett; Hagen Schempf

2006-01-31T23:59:59.000Z

236

Performance Demonstration Based Probablity of Detection (POD) Curves for Fatigue Cracks in Piping  

SciTech Connect (OSTI)

This paper evaluates non-destructive examination (NDE) detection capabilities for fatigue cracks in piping. Industry performance demonstration initiative (PDI) data for fatigue crack detection were used to develop a matrix of statistically based probability of detection (POD) curves that consider various NDE performance factors. Seven primary performance factors were identified – Material, Crack Geometry/Type, NDE Examination Access, NDE Procedure, Examiner Qualification, Pipe Diameter, and Pipe Wall Thickness. A database of 16,181 NDE performance observations, with 18 fields associated with each observation, was created and used to develop statistically based POD curves for 42 stainless steel and 14 carbon steel performance cases. Subsequent comparisons of the POD fits for each of the cases showed that excellent NDE performance for fatigue cracks can be expected for ferritic materials. Very little difference was observed between the POD curves for the 14 carbon steel performance cases considered in this study and NDE performance could therefore be represented by a single POD curve. For stainless steel, very good performance can also be expected for circumferential cracks located on the same side of the weld from which the NDE examination is made. POD depended primarily on component thickness. Three POD curves for stainless steel were prepared. Best estimate and the associated 95% confidence bounds for POD versas through-wall depth logistic regression digital data are provided. Probabilistic fracture mechanics (PFM) calculations were performed to compare best estimate leak probabilities obtained from both the new performance-based POD curves and previous PFM models. This work was performed under joint funding by EPRI and the U.S. Department of Energy (DOE), Office of Nuclear Energy Science and Technology’s Nuclear Energy Plant Optimization (NEPO) program.

Gosselin, Stephen R.; Simonen, Fredric A.; Heasler, Patrick G.; Becker, F. L.; Doctor, Steven R.; Carter, R. G.

2005-07-01T23:59:59.000Z

237

Roll-to-Roll Electrode Processing and Materials NDE for Advanced Lithium Secondary Batteries  

Broader source: Energy.gov [DOE]

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

238

Roll-to-Roll Electrode Processing and Materials NDE for Advanced Lithium Secondary Batteries  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

239

Detection & Diagnostic Systems - Nuclear Engineering Division (Argonne)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Departments > Detection & Diagnostic Departments > Detection & Diagnostic Systems DEPARTMENTS Engineering Analysis Nuclear Systems Analysis Research & Test Reactor Nonproliferation and National Security Detection & Diagnostic Systems Engineering Development & Applications Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Celebrating the 70th Anniversary of Chicago Pile 1 (CP-1) Argonne OutLoud on Nuclear Energy Argonne Energy Showcase 2012 Detection & Diagnostic Systems Bookmark and Share The Detection & Diagnostic Systems Department conducts research and development related to instruments and non-destructive evaluation (NDE) techniques for characterization of materials and determination of system parameters related to different energy systems (including fossil,

240

Vehicle Technologies Office Merit Review 2014: On-Line Weld NDE with IR Thermography  

Broader source: Energy.gov [DOE]

Presentation given by Oak Ridge National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about on-line weld...

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Status of the International Cooperative Program for Inspection of Nickel Alloy Components - PINC  

SciTech Connect (OSTI)

Primary water stress corrosion cracking (PWSCC) has occurred world-wide in nuclear power plants and is seen as a serious issue. Crack samples show very tight and very complex cracks in the nickel-base weld metal and forgings that are difficult to detect, size, and characterize. Pacific Northwest National Laboratory (PNNL) is conducting a research program on non-destructive evaluation (NDE) reliability in detecting and characterizing PWSCC. This program is part of an international cooperative research project called the Program for the Inspection of Nickel-Alloy Components (PINC), led by the U.S. Nuclear Regulatory Commission (NRC), which has been set up to leverage efforts in several countries to address this significant and common problem. This work has the general goal of developing an understanding of the morphology of PWSCC and assessing the NDE responses from it.

Schuster, George J.; Cumblidge, Stephen E.; Doctor, Steven R.; Moyer, Carol E.

2008-01-01T23:59:59.000Z

242

DATE  

Broader source: Energy.gov (indexed) [DOE]

01 01 SECTION A. Project Title: Nuclear Fabrication Consortium SECTION B. Project Description The mission of the NFC will be accomplished through both public and private funding. The list below outlines the programs that have identified for initiation under the initial DOE funding. Additional programs are envisioned and will be proposed, subject to any applicable budget constraints, to DOE-NE as they become known to EWI, the NFC, and DOE. 1. Automation of Advanced Non-Destructive Evaluation (NDE) Technologies The objective of the first phase of this project is to improve the reliability of NDE methods by increasing the automation content. 2. Advanced Laser Technology The objective is to identify laser applications that offer significant productivity gains over the current processes being used, and

243

Overview of nondestructive evaluation technologies  

SciTech Connect (OSTI)

The infrastructure in the US and the world is aging. There is an increasing awareness of the need to assess the severity of the damage occurring to the infrastructure. Limited resources preclude the replacement of all structures that need repairs or have exceeded their life times. Methods to assess the amount and severity of damage are crucial to implementing a systematic, cost effective approach to repair and/or replace the damaged structures. The challenges of inspecting aging structures without impairing their usefulness rely on a variety of technologies and techniques for nondestructive evaluation (NDE). This paper will briefly describe several nondestructive evaluation technologies that are required for inspecting a variety of systems and structures.

Thomas, G.

1995-04-01T23:59:59.000Z

244

Application of Quantitative NDE Techniques to High Level Waste Storage Tanks  

SciTech Connect (OSTI)

As various issues make the continued usage of high-level waste storage tanks attractive, there is an increasing need to sharpen the assessment of their structural integrity. One aspect of a structural integrity program, nondestructive evaluation, is the focus of this paper. In September 2000, a program to support the sites was initiated jointly by Tanks Focus Area and Characterization, Monitoring, and Sensor Technologies Crosscutting Program of the Office of Environmental Management, Department of Energy (DOE). The vehicle was the Center for Nondestructive Evaluation, one of the National Science Foundation's Industry/University Cooperative Research Centers that is operated in close collaboration with the Ames Laboratory, USDOE. The support activities that have been provided by the center will be reviewed. Included are the organization of a series of annual workshops to allow the sites to share experiences and develop coordinated approaches to common problems, the development of an electronic source of relevant information, and assistance of the sites on particular technical problems. Directions and early results on some of these technical assistance projects are emphasized. Included are the discussion of theoretical analysis of ultrasonic wave propagation in curved plates to support the interpretation of tandem synthetic aperture focusing data to detect flaws in the knuckle region of double shell tanks; the evaluation of guided ultrasonic waves, excited by couplant free, electromagnetic acoustic transducers, to rapidly screen for inner wall corrosion in tanks; the use of spread spectrum techniques to gain information about the structural integrity of concrete domes; and the use of magnetic techniques to identify the alloys used in the construction of tanks.

Thompson, R. B.; Rehbein, D. K.; Bastiaans, G.; Terry, M.; Alers, R.

2002-02-25T23:59:59.000Z

245

Research and Development Roadmaps for Nondestructive Evaluation of Cables, Concrete, Reactor Pressure Vessels, and Piping Fatique  

SciTech Connect (OSTI)

To address these research needs, the MAaD Pathway supported a series of workshops in the summer of 2012 for the purpose of developing R&D roadmaps for enhancing the use of Nondestructive Evaluation (NDE) technologies and methodologies for detecting aging and degradation of materials and predicting the remaining useful life. The workshops were conducted to assess requirements and technical gaps related to applications of NDE for cables, concrete, reactor pressure vessels (RPV), and piping fatigue for extended reactor life. An overview of the outcomes of the workshops is presented here. Details of the workshop outcomes and proposed R&D also are available in the R&D roadmap documents cited in the bibliography and are available on the LWRS Program website (http://www.inl.gov/lwrs).

Clayton, Dwight A [ORNL] [ORNL; Bakhtiari, Sasan [Argonne National Laboratory (ANL)] [Argonne National Laboratory (ANL); Smith, Cyrus M [ORNL] [ORNL; Simmons, Kevin [Pacific Northwest National Laboratory (PNNL)] [Pacific Northwest National Laboratory (PNNL); Ramuhalli, Pradeep [Pacific Northwest National Laboratory (PNNL)] [Pacific Northwest National Laboratory (PNNL); Coble, Jamie [Pacific Northwest National Laboratory (PNNL)] [Pacific Northwest National Laboratory (PNNL); Brenchley, David [Pacific Northwest National Laboratory (PNNL)] [Pacific Northwest National Laboratory (PNNL); Meyer, Ryan [Pacific Northwest National Laboratory (PNNL)] [Pacific Northwest National Laboratory (PNNL)

2013-01-01T23:59:59.000Z

246

Reconstruction algorithm for limited-angle diffraction tomography for microwave NDE  

SciTech Connect (OSTI)

Microwave tomography is becoming a popular imaging modality in nondestructive evaluation and medicine. A commonly encountered challenge in tomography in general is that in many practical situations a full 360° angular access is not possible and with limited access, the quality of reconstructed image is compromised. This paper presents an approach for reconstruction with limited angular access in diffraction tomography. The algorithm takes advantage of redundancies in image Fourier space data obtained from diffracted field measurements and couples it to an error minimization technique using a constrained total variation (CTV) minimization. Initial results from simulated data have been presented here to validate the approach.

Paladhi, P. Roy; Klaser, J.; Tayebi, A.; Udpa, L.; Udpa, S. [Non-destructive Evaluation Lab, Dept. of Electrical and Computer Engineering, College of Engineering, Michigan State University, Lansing, MI 48824-1226 (United States)

2014-02-18T23:59:59.000Z

247

A review of SQUID magnetometry applied to nondestructive evaluation  

SciTech Connect (OSTI)

This paper reports on the development of the SQUID as the most sensitive instrument known for the measurement of changes in magnetic flux has presented new opportunities for its use for nondestructive evaluation (NDE) of electrically conducting and ferromagnetic structures. This presentation will review the preliminary studies of this application within the past few years in order to serve as an introduction to those that follow. It will include early work by the author which explored the ability of a SQUID to detect defects in a buried pipe and to detect fatigue in steel structures.

Weinstock, H. (Air Force Office of Scientific Research, Bolling AFB, DC (United States))

1991-03-01T23:59:59.000Z

248

Knowledge based systems in nondestructive evaluation  

SciTech Connect (OSTI)

This paper dicusses the application of knowledge based systems technology to problems in nondestructive evaluation (NDE). The Saft Image Interpretation Assistant (SIIA) is used as an illustrative example. SIIA is a prototype knowledge based system designed to assist in making the operation of the Synthetic Aperture Focusing Technique (SAFT) Ultrasonic Inspection System more reliable and efficient. The two primary motivations for developing SIIA were to insure that the SAFT system is used correctly and consistently and to assist in interpreting the results of a SAFT inspection. Our initial goal was to develop a system to assist in the interpretation of the images resulting from a SAFT inspection. As we started to identify the structure of the inspection problem, however, we realized knowledge based system technology could be more effectively applied to develop a system that is in essence an on-line procedure generator that guides a user through a SAFT inspection. When fully developed such a system could assist in proper setup of the inspection equipment for each of the steps in a SAFT inspection and in interpreting the inspection results for each step. The first section of the paper describes the structure of the SAFT inspection problem. The next section discusses three forms of knowledge: procedural, structural, and inferential as they relate to the SAFT problem. The final section discusses the implications of this type of system for other NDE techniques and applications.

Melton, R.B.

1987-08-01T23:59:59.000Z

249

Evaluating the presence of porosity in Brazilian archaeological pottery associating x-radiography and PIXE  

SciTech Connect (OSTI)

X-Radiography technique has been used effectively for decades to evaluate and identify differences in homogeneities in samples. It is a simple, fast and non-destructive technique that provides a view of internal structure helping investigating manufacturing details of archaeological ceramics. Characteristics of the paste used in the matrix composition can be derived using PIXE technique through the determination of the major elemental composition allowing the calculation of its expected density. Combining this information with x-ray images is possible to check for differences in the average density of material indicating the presence of homogeneously distributed porosity or temper. The present work evaluates the porosity in a set of native Brazilian pottery sherds that were collected in the Aldeia Lalima archaeological site, located at Mato Grosso do Sul State.

Curado, J. F.; Added, N.; Rizzutto, M. A. [Instituto de Fisica, Universidade de Sao Paulo, Postal 66318, Sao Paulo, SP (Brazil)

2013-05-06T23:59:59.000Z

250

Ultrasonic wave visualization as a teaching aid in non-destructive testing  

Science Journals Connector (OSTI)

Visualization of ultrasound by the technique of stroboscopic photoelasticity has been applied to the teaching of ultrasonic testing. This paper describes the principles involved in the visualization of compressional, shear and Rayleigh waves. Conventional ‘A-scope’ displays are explained in terms of the visualized ultrasonic wave interactions within notched glass testpieces. Ultrasonic wave mode conversions, by reflection at boundaries within testpieces, and ultrasonic wave interactions with defects in glass models, are visualized.

G. Hall

1977-01-01T23:59:59.000Z

251

Non-Destructive Testing of Subsurface Infrastructure using Induced Polarization and Electrical Resistivity Imaging  

E-Print Network [OSTI]

critical component of the assessment. While this issue is not new, current techniques are typically invasive or costly. This research explores the feasibility and effectiveness of induced polarization (IP) and electrical resistivity imaging (ERI), near...

Tucker, Stacey Elizabeth

2013-07-05T23:59:59.000Z

252

Author's personal copy A review of non-destructive techniques for the detection of  

E-Print Network [OSTI]

fuel plants and nuclear reactors, but also in the assessment of their remaining life. Three stages s t r a c t The assessment of creep damage in steels employed in the power generation industry to electromagnetic methods, hardness measurements and nuclear techniques. A critical review of the main results

Nagy, Peter B.

253

Non-Destructive X-ray Measurement of Soot, Ash, Washcoat and...  

Broader source: Energy.gov (indexed) [DOE]

on diesel particulate filters. deer08toops.pdf More Documents & Publications Neutron Imaging of Advanced Engine Technologies Neutron Imaging of Advanced Engine...

254

Soil stiffness beneath a rigid mass using non-destructive impact testing  

E-Print Network [OSTI]

24 28 29 29 30 32 33 6 TEXAS A&M UNIVERSITY RIVERSIDE CAMPUS CLAY SITE 36 6. 1 Location 6. 2 Geological Description 36 36 6. 3 Geotechnical Properties 6. 4 Test Conditions and Instrumentation 6. 5 Tests Conducted 36 42 45 7 NORTH... showing the National Sites for Geotechnical Experimentation. The clay site is located at the southwest end of the NE-SW runway (runway 4). Fig. 21 is a plan view of the clay site showing the various testing program locations thus far. 6. 2 Geological...

Maxwell, James Christopher

2012-06-07T23:59:59.000Z

255

Quantification of Wellbore Leakage Risk Using Non?destructive Borehole Logging Techniques  

SciTech Connect (OSTI)

Well integrity is important at all potential CCS locations and may play a crucial role establishing leakage risk in areas where there is a high density of existing wells that could be impacted by the storage operations including depleted petroleum fields where EOR or CCS will occur. To address a need for risk quantification methods that can be directly applied to individual wells using borehole logging tools a study was conducted using data from five wells in Wyoming. The objectives of the study were: Objective 1 Develop methods to establish the baseline flow parameters (porosity and permeability or mobility) from individual measurements of the material properties and defects in a well. Objective 2 Develop a correlation between field flow?property data and cement logs that can be used to establish the flow?properties of well materials and well features using cement mapping tools. Objective 3 Establish a method that uses the flow?property model (Objective 2) to analyze the statistical uncertainties associated with individual well leakage that can provide basis for uncertainty in risk calculations. The project objectives were met through the logging of five wells in Carbon and Natrona County Wyoming to collect data that was used to estimate individual and average well flow properties and model the results using ultrasonic data collected during the logging. Three of the five wells provided data on point and average flow properties for well annuli. Data from the other two wells were used to create models of cement permeability and test whether information collected in one well could be used to characterize another well. The results of the in?situ point measurements were confirmed by the lab measurements sidewall cores collected near the same depths Objective 1 was met using the data collected through logging, testing, and sampling. The methods were developed that can establish baseline flow parameters of wells by both point and average test methods. The methods to estimate the flow properties modeling of point pressure tests, modeling of vertical interference tests, and laboratory measurement of cased?hole sidewall cores The wells were in sufficiently good shape to allow the development of the characterization methods while still having enough defects to study differences in results as they relate to well integrity. Samples and tests analyzed from three of five wells studied in showed the cements were largely intact and had not degraded from exposure native brines. Log results taken in conjunction with the core measurements indicate that interfaces and/or problems with cement placement due to eccentering provide preferential flow paths for fluids, which can increase the effective permeability of the barrier several orders of magnitude above the permeability of intact cement. The results of the maps created using logging tools indicating that the cement condition and bond are generally good identify a need for more research to understand how logs can be used to predict effective well permeabilities such as those measured by the VITs in this study.

Duguid, Andrew; Butsch, Robert; Cary, J.; Celia, Michael; Chugunov, Nikita; Gasda, Sarah; Hovorka, Susan; Ramakrishnan, T. S.; Stamp, Vicki; Thingelstad, Rebecca; Wang, James

2014-05-31T23:59:59.000Z

256

Non-Destructive Spent Fuel Characterization with Semi-Conducting Gallium Arsinde Neutron Imaging Arrays  

SciTech Connect (OSTI)

High resistivity bulk grown GaAs has been used to produce thermal neutron imaging devices for use in neutron radiography and characterizing burnup in spent fuel. The basic scheme utilizes a portable Sb/Be source for monoenergetic (24 keV) neutron radiation source coupled to an Fe filter with a radiation hard B-coated pixellated GaAs detector array as the primary neutron detector. The coated neutron detectors have been tested for efficiency and radiation hardness in order to determine their fitness for the harsh environments imposed by spent fuel. Theoretical and experimental results are presented, showing detector radiation hardness, expected detection efficiency and the spatial resolution from such a scheme. A variety of advanced neutron detector designs have been explored, with experimental results achieving 13% thermal neutron detection efficiency while projecting the possibility of over 30% thermal neutron detection efficiency.

Douglas S. McGregor; Holly K. Gersch; Jeffrey D. Sanders; John C. Lee; Mark D. Hammig; Michael R. Hartman; Yong Hong Yang; Raymond T. Klann; Brian Van Der Elzen; John T. Lindsay; Philip A. Simpson

2002-01-30T23:59:59.000Z

257

Non-destructive assay of EBR-II blanket elements using resonance transmission analysis.  

SciTech Connect (OSTI)

Resonance transmission analysis utilizing a faltered reactor beam was examined as a means of determining the {sup 239}Pu content in Experimental Breeder Reactor-II depleted uranium blanket elements. The technique uses cadmium and gadolinium falters along with a {sup 239}Pu fission chamber to isolate the 0.3 eV resonance in {sup 239}Pu. In the energy range of this resonance (0.1 eV to 0.5 ev), the total microscopic cross-section of {sup 239}Pu is significantly greater than the cross-sections of {sup 238}U and {sup 235}U. This large difference allows small changes in the {sup 239}Pu content of a sample to result in large changes in the mass signal response. Tests with small stacks of depleted uranium and {sup 239}Pu foils indicate a significant change in response based on the {sup 239}Pu content of the foil stack. In addition, the tests indicate good agreement between the measured and predicted values of {sup 239}Pu up to approximately two weight percent.

Klann, R.T.; Poenitz, W.P.

1998-09-11T23:59:59.000Z

258

NON-DESTRUCTIVE IDENTIFICATION OF MICROMETER-SCALE MINERALS AND THEIR POSITION WITHIN A BULK SAMPLE  

Science Journals Connector (OSTI)

...hollow brass pin (diameter 3.15 mm) that had been filled with wax. The brass pin was mounted on the sample stage of the instrument...Isenegger, A. Stampanoni, M. (2010): Image processing pipeline for synchrotron-radiation- based tomographic microscopy...

Henning O. Sűrensen; Sepide S. Hakim; Stefan Pedersen; Bo C. Christiansen; Zoltan I. Balogh; Caroline P. Hem; Ivan S. Pasarin; Sűren Schmidt; Ulrik L. Olsen; Jette Oddershede; Cathrine Frandsen; Robert Feidenhans’L; Susan L.S. Stipp

259

Acoustic emission non-destructive testing of structures using source location techniques.  

SciTech Connect (OSTI)

The technology of acoustic emission (AE) testing has been advanced and used at Sandia for the past 40 years. AE has been used on structures including pressure vessels, fire bottles, wind turbines, gas wells, nuclear weapons, and solar collectors. This monograph begins with background topics in acoustics and instrumentation and then focuses on current acoustic emission technology. It covers the overall design and system setups for a test, with a wind turbine blade as the object. Test analysis is discussed with an emphasis on source location. Three test examples are presented, two on experimental wind turbine blades and one on aircraft fire extinguisher bottles. Finally, the code for a FORTRAN source location program is given as an example of a working analysis program. Throughout the document, the stress is on actual testing of real structures, not on laboratory experiments.

Beattie, Alan G.

2013-09-01T23:59:59.000Z

260

Non-destructive quantification of water gradient in sludge composting with Magnetic Resonance Imaging  

SciTech Connect (OSTI)

Sludge from a slaughter-house wastewater plant, and mixtures of bulking agent (crushed wood pallet) and sludge were studied by Nuclear Magnetic Resonance (NMR). The NMR spin-spin relaxation (T{sub 2}) and spin-lattice relaxation (T{sub 1}) signals for sludge, wet crushed wood pallet and mixtures of sludge and bulking agent were decomposed into three relaxation time components. Each relaxation time component was explained by a non-homogeneous water distribution on a microscopic length scale and by the porosity of the material. For all samples, the T{sub 2} relaxation time value of each component was directly related to the dry matter content. The addition of wet crushed wood to sludge induced a decrease in the relaxation time, explained by water transfer between the sludge and the wood. Magnetic Resonance Imaging (MRI) and respirometric measurements were performed on sludge and wood mixtures. MR images of the mixtures were successfully obtained at different biodegradation states. Based on specific NMR measurements in an identified area located in the MRI cells, the results showed that grey levels of MR images reflected dry matter content. This preliminary study showed that MRI would be a powerful tool to measure water distribution in sludge and bulking agent mixtures and highlights the potential of this technique to increase the understanding of sludge composting.

Duval, F.P.; Quellec, S. [Cemagref, UR TERE, 17 Avenue de Cucille, CS 64427, F-35044 Rennes (France); Universite europeenne de Bretagne (France); Tremier, A.; Druilhe, C. [Cemagref, UR GERE, F-35044 Rennes (France); Universite europeenne de Bretagne (France); Mariette, F., E-mail: francois.mariette@cemagref.f [Cemagref, UR TERE, 17 Avenue de Cucille, CS 64427, F-35044 Rennes (France); Universite europeenne de Bretagne (France)

2010-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Non-destructive assay of mechanical components using gamma-rays and thermal neutrons  

SciTech Connect (OSTI)

This work presents the results obtained in the inspection of several mechanical components through neutron and gamma-ray transmission radiography. The 4.46 Multiplication-Sign 10{sup 5} n.cm{sup -2}.s{sup -1} thermal neutron flux available at the main port of the Argonauta research reactor in Instituto de Engenharia Nuclear has been used as source for the neutron radiographic imaging. The 412 keV {gamma}-ray emitted by {sup 198}Au, also produced in that reactor, has been used as interrogation agent for the gamma radiography. Imaging Plates - IP specifically designed to operate with thermal neutrons or with X-rays have been employed as detectors and storage devices for each of these radiations.

Souza, Erica Silvani; Avelino, Mila R. [PPG-EM/UERJ, R. Sao Francisco Xavier, 524, Maracana - Rio de Janeiro - RJ (Brazil); Almeida, Gevaldo L. de; Souza, Maria Ines S. [IEN/CNEN, Rua Helio de Almeida, 75, Ilha do Fundao, Rio de Janeiro - RJ (Brazil)

2013-05-06T23:59:59.000Z

262

Non-destructive characterization of films grown on Zircaloy-2 by annealing in air  

Science Journals Connector (OSTI)

Zircaloy-2 is often used in engineering applications because of its corrosion resistance; a property attributable to a protective oxide film that grows on its surface. Variable angle infrared (IR) reflection spectroscopy and atomic force microscopy are used to determine the thickness and roughness of such films grown thermally on Zircaloy-2 surfaces in air. We find cubic growth kinetics in the temperature range 500-600°C with an apparent activation energy of 227 kJ mol-1. We also demonstrate how an increase in microscopic surface roughness at higher temperatures correlates with a loss of oxide homogeneity as sampled by the IR method.

J S McNatt; M J Shepard; N Farkas; J M Morgan; R D Ramsier

2002-01-01T23:59:59.000Z

263

Development of a neutron measurement system in unified non-destructive assay for the PRIDE facility  

Science Journals Connector (OSTI)

The Korea Atomic Energy Research Institute (KAERI) has made an effort to develop pyroprocessing technology to resolve an on-going problem...i.e...., the management of spent nuclear fuels. To this end, a test-bed ...

Hee Seo; Se-Hwan Park; Byung-Hee Won…

2013-12-01T23:59:59.000Z

264

NETL: Oil & Natural Gas Projects  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Explorer II – Wireless Self-powered Visual and NDE Robotic Inspection System for Live Gas Pipelines Explorer II – Wireless Self-powered Visual and NDE Robotic Inspection System for Live Gas Pipelines DE-FC26-04NT42264 Goal The goal of this project is to enhance the reliability and integrity of the Nation’s natural gas infrastructure through the development, construction, integration and testing of a long-range non-destructive evaluation (NDE) inspection capability in a modular robotic locomotion platform (Explorer II). The Explorer II will have an integrated inspection sensor (developed under a separate project) to provide enhanced in-situ, live, and real-time assessments of the status of a gas pipeline infrastructure. The Explorer II system will be capable of operating in 6-inch- and 8-inch-diameter, high-pressure (piggable and non-piggable) distribution and transmission mains. The system will also be enhanced to form an “extended” platform with additional drive and battery modules allowing the system the potential to carry alternative sensors that are heavier or more drag intensive than the current technology.

265

Development of an Inverse Algorithm for Resonance Inspection  

SciTech Connect (OSTI)

Resonance inspection (RI), which employs the natural frequency spectra shift between the good and the anomalous part populations to detect defects, is a non-destructive evaluation (NDE) technique with many advantages such as low inspection cost, high testing speed, and broad applicability to structures with complex geometry compared to other contemporary NDE methods. It has already been widely used in the automobile industry for quality inspections of safety critical parts. Unlike some conventionally used NDE methods, the current RI technology is unable to provide details, i.e. location, dimension, or types, of the flaws for the discrepant parts. Such limitation severely hinders its wide spread applications and further development. In this study, an inverse RI algorithm based on maximum correlation function is proposed to quantify the location and size of flaws for a discrepant part. A dog-bone shaped stainless steel sample with and without controlled flaws are used for algorithm development and validation. The results show that multiple flaws can be accurately pinpointed back using the algorithms developed, and the prediction accuracy decreases with increasing flaw numbers and decreasing distance between flaws.

Lai, Canhai; Xu, Wei; Sun, Xin

2012-10-01T23:59:59.000Z

266

Evaluation of Ethanol and Water Introduction via Fumigation on Efficiency and Emissions of a Compression Ignition Engine Using an Atomization Technique.  

E-Print Network [OSTI]

??Performance of a diesel engine, equipped for ethanol and water fumigation, was studied. The method implemented allowed for non-destructive introduction of liquids in advance of… (more)

Janousek, Grant S

2010-01-01T23:59:59.000Z

267

Vehicle Technologies Office Merit Review 2014: Roll-to-Roll Electrode Processing NDE for Advanced Lithium Secondary Batteries  

Broader source: Energy.gov [DOE]

Presentation given by Oak Ridge National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about roll-to-roll...

268

Improvements in Low-Frequency, Ultrasonic Phased-Array Evaluation for Thick Section Cast Austenitic Stainless Steel Piping Components  

SciTech Connect (OSTI)

Research is being conducted for the U.S. Nuclear Regulatory Commission (NRC) at the Pacific Northwest National Laboratory (PNNL) to assess the effectiveness and reliability of advanced nondestructive examination (NDE) methods for the inspection of light water reactor (LWR) components. A primary objective of this work is to evaluate various NDE methods to assess their ability to detect, localize, and size cracks in coarse-grained steel components. This particular study focused on the evaluation of custom-designed, low-frequency (500 kHz) phased-array (PA) probes for examining welds in thick-section cast austenitic stainless steel (CASS) piping. In addition, research was conducted to observe ultrasonic sound field propagation effects from known coarse-grained microstructures found in parent CASS material. The study was conducted on a variety of thick-wall, coarse-grained CASS specimens that were previously inspected by an older generation 500-kHz PA-UT probe and acquisition instrument configuration. This comparative study describes the impact of the new PA probe design on flaw detection and sizing in a low signal-to-noise environment. The set of Pressurized Water Reactor Owners Group (PWROG) CASS specimens examined in this study are greater than 50.8-mm (2.0-in.) thick with documented flaws and microstructures. These specimens are on loan to PNNL from the Electric Power Research Institute (EPRI) NDE Center in Charlotte, North Carolina. The flaws contained within these specimens are thermal fatigue cracks (TFC) or mechanical fatigue cracks (MFC) and range from 13% to 42% in through-wall extent. In addition, ultrasonic signal continuity was evaluated on two CASS parent material ring sections by examining the edge-of-pipe response (corner geometry) for regions of signal loss.

Anderson, Michael T.; Crawford, Susan L.; Diaz, Aaron A.; Moran, Traci L.

2010-12-01T23:59:59.000Z

269

Microsoft Word - FY13 NSTec Performance Evaluation Report (Public...  

National Nuclear Security Administration (NNSA)

nondestructive examination inspectors needed for mission-critical work. NSTec's improved conduct of operations ensures NDE hold points and inspection acceptance criteria are...

270

Design and development of a special purpose SAFT system for nondestructive evaluation of nuclear reactor vessels and piping components  

SciTech Connect (OSTI)

This report describes the design details of a special purpose system for real-time nondestructive evaluation of reactor vessels and piping components. The system consists of several components and the report presents the results of the research aimed at the design of each component and recommendations based on the results. One major component of the NDE system, namely the real-time SAFT processor, was designed with sufficient details to enable the fabrications of a prototype by GARD Inc. under a subcontract from The University of Michigan and the report includes their results and conclusions.

Ganapathy, S.; Schmult, B.; Wu, W.S.; Dennehy, T.G.; Moayeri, N.; Kelly, P.

1985-08-01T23:59:59.000Z

271

PRELIMINARY ASSESSMENT OF NDE METHODS ON INSPECTION OF HDPE BUTT FUSION PIPING JOINTS FOR LACK OF FUSION  

SciTech Connect (OSTI)

Studies at the Pacific Northwest National Laboratory in Richland, Washington, are being conducted to evaluate nondestructive examination approaches for inspecting butt fusion joints in high density polyethylene (HDPE) pipe for lack of fusion (LOF). The work provides information to the United States Nuclear Regulatory Commission on the effectiveness and need for volumetric inspection techniques of HDPE butt fusion joints in Section III, Division 1, Class 3, buried piping systems in nuclear power plants. This paper describes results from preliminary assessments using ultrasonic nondestructive techniques and high-speed tensile impact testing for determining joint integrity. A series of butt joints were fabricated in 3408, 12-inch IPS DR-11 material by varying the fusion parameters in attempts to provide good joints and joints containing LOF. These butt joints were visually examined and volumetrically examined with time-of-flight diffraction (TOFD) and phased-array (PA) ultrasound. A limited subset of pipe joint material was destructively analyzed by either slicing through the joint and visually examining the surface or by employing a standard high-speed tensile impact test. Initial correlation of the fusion parameters, nondestructive, and destructive evaluations have shown that areas with gross LOF were detected with both TOFD and PA ultrasound and that the tensile impact test showed a brittle failure at the joint. There is still some ambiguity in results from the less obvious LOF conditions. Current work is targeted on assessing the sensitivity of the ultrasonic volumetric examinations and validating the results with a destructive analysis. It is expected that on-going and future work will lead to quantifying the ultrasonic responses in terms of joint integrity.

Crawford, Susan L.; Doctor, Steven R.; Cinson, Anthony D.; Cumblidge, Stephen E.; Anderson, Michael T.

2010-01-01T23:59:59.000Z

272

VT PowerPoint Template  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

EMBEDDED ACTIVE FIBER OPTIC SENSING EMBEDDED ACTIVE FIBER OPTIC SENSING NETWORK FOR STRUCTURAL HEALTH MONITORING IN HARSH ENVIRONMENTS DE-FE0007405 Anbo Wang, Cheng Ma Virginia Tech Center for Photonics Technology Blacksburg, VA 24061 awang@vt.edu, cma1@vt.edu http://photonics.ece.vt.edu/ 1 Advanced Research Sensor and Controls Project Review Meeting DOE NETL Morgantown, WV 03/12/2012 Outline * Motivation, Overview & Objectives * Background and Fundamentals of Proposed Technology * Project Scope and Work Plan 2 MOTIVATION AND OBJECTIVES 3 Motivation * Non-Destructive Evaluation (NDE) of structural health in advanced energy systems. Examples: * Ultra Supercritical (USC) systems: * Steam temperature 760 o C, pressure 5000 psi. * Integrated Gasification Combined Cycle (IGCC):

273

CX-002584: Categorical Exclusion Determination | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

2584: Categorical Exclusion Determination 2584: Categorical Exclusion Determination CX-002584: Categorical Exclusion Determination Nuclear Fabrication Consortium CX(s) Applied: B3.6, A9, A11 Date: 04/16/2010 Location(s): Idaho Office(s): Idaho Operations Office, Nuclear Energy The mission of the Nuclear Fabrication Consortium (NFC) will be accomplished through both public and private funding. The list below outlines the programs that have identified for initiation under the initial Department of Energy (DOE) funding. Additional programs are envisioned and will be proposed, subject to any applicable budget constraints, to DOE-NE (Nuclear Energy) as they become known to Edison Welding Institute (EWI), the NFC, and DOE. 1. Automation of Advanced Non-Destructive Evaluation (NDE) Technologies; 2. Advanced Laser Technology; 3. State-of-the-Art

274

Pressure Change Measurement Leak Testing Errors  

SciTech Connect (OSTI)

A pressure change test is a common leak testing method used in construction and Non-Destructive Examination (NDE). The test is known as being a fast, simple, and easy to apply evaluation method. While this method may be fairly quick to conduct and require simple instrumentation, the engineering behind this type of test is more complex than is apparent on the surface. This paper intends to discuss some of the more common errors made during the application of a pressure change test and give the test engineer insight into how to correctly compensate for these factors. The principals discussed here apply to ideal gases such as air or other monoatomic or diatomic gasses; however these same principals can be applied to polyatomic gasses or liquid flow rate with altered formula specific to those types of tests using the same methodology.

Pryor, Jeff M [ORNL] [ORNL; Walker, William C [ORNL] [ORNL

2014-01-01T23:59:59.000Z

275

Method and apparatus for the simultaneous display and correlation of independently generated images  

DOE Patents [OSTI]

An apparatus and method for location by location correlation of multiple images from Non-Destructive Evaluation (NDE) and other sources. Multiple images of a material specimen are displayed on one or more monitors of an interactive graphics system. Specimen landmarks are located in each image and mapping functions from a reference image to each other image are calcuated using the landmark locations. A location selected by positioning a cursor in the reference image is mapped to the other images and location identifiers are simultaneously displayed in those images. Movement of the cursor in the reference image causes simultaneous movement of the location identifiers in the other images to positions corresponding to the location of the reference image cursor.

Vaitekunas, Jeffrey J. (Chicago, IL); Roberts, Ronald A. (Crown Point, IN)

1991-01-01T23:59:59.000Z

276

Technical Letter Report, An Evaluation of Ultrasonic Phased Array Testing for Reactor Piping System Components Containing Dissimilar Metal Welds, JCN N6398, Task 2A  

SciTech Connect (OSTI)

Research is being conducted for the U.S. Nuclear Regulatory Commission at the Pacific Northwest National Laboratory to assess the effectiveness and reliability of advanced nondestructive examination (NDE) methods for the inspection of light-water reactor components. The scope of this research encomŹpasses primary system pressure boundary materials including dissimilar metal welds (DMWs), cast austenitic stainless steels (CASS), piping with corrosion-resistant cladding, weld overlays, inlays and onlays, and far-side examinations of austenitic piping welds. A primary objective of this work is to evaluate various NDE methods to assess their ability to detect, localize, and size cracks in steel components that challenge standard and/or conventional inspection methodologies. This interim technical letter report provides a summary of a technical evaluation aimed at assessing the capabilities of phased-array (PA) ultrasonic testing (UT) methods as applied to the inspection of small-bore DMW components that exist in the reactor coolant systems (RCS) of pressurized water reactors (PWRs). Operating experience and events such as the circumferential cracking in the reactor vessel nozzle-to-RCS hot leg pipe at V.C. Summer nuclear power station, identified in 2000, show that in PWRs where primary coolant water (or steam) are present under normal operation, Alloy 82/182 materials are susceptible to pressurized water stress corrosion cracking. The extent and number of occurrences of DMW cracking in nuclear power plants (domestically and internationally) indicate the necessity for reliable and effective inspection techniques. The work described herein was performed to provide insights for evaluating the utility of advanced NDE approaches for the inspection of DMW components such as a pressurizer surge nozzle DMW, a shutdown cooling pipe DMW, and a ferritic (low-alloy carbon steel)-to-CASS pipe DMW configuration.

Diaz, Aaron A.; Cinson, Anthony D.; Crawford, Susan L.; Anderson, Michael T.

2009-11-30T23:59:59.000Z

277

CAIT Newsletter June 2009 transportation todaytransportation today  

E-Print Network [OSTI]

Awarded to CAIT NDE Team With the ever-increasing need to stretch the funds available to fix our aging is with nondestructive evaluation (NDE). An important research contract to audit available NDE technologies and evalu, Strategic Highway Research Program II (SHRP2). NDE encompasses several diagnostic techniques and tools used

Neimark, Alexander V.

278

ICMP is a collaborative effort between Rutgers, The State University of New Jersey, state and federal agencies, and international industry  

E-Print Network [OSTI]

, training, and implementation activities concentrate on nondestructive evaluation (NDE). NDE is an important to catastrophic failures. Ultrasonic, seismic (surface wave), electromagnetic, and other NDE techniques are used · Deployment and implementation of the latest NDE technologies · Education and training of infrastructure

Neimark, Alexander V.

279

Disbond detection in adhesively-bonded structures using piezoelectric wafer active sensors  

E-Print Network [OSTI]

, Structural Health Monitoring, Damage Detection, NDE 1 INTRODUCTION With an increasing use of adhesively in this direction and nondestructive evaluation (NDE) methods are successfully used for damage detection and damage, guided waves used for NDE have shown encouraging results and are becoming more popular in the NDE field

Giurgiutiu, Victor

280

A Framework for the Evaluation of the Cost and Benefits of Microgrids  

E-Print Network [OSTI]

Delivered Energy (NDE) and SAIFI, SAIDI, etc. These valuesevents per customer, i.e. , SAIFI. In the case of the full

Morris, Greg Young

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Remotely deployable aerial inspection using tactile sensors  

SciTech Connect (OSTI)

For structural monitoring applications, the use of remotely deployable Non-Destructive Evaluation (NDE) inspection platforms offer many advantages, including improved accessibility, greater safety and reduced cost, when compared to traditional manual inspection techniques. The use of such platforms, previously reported by researchers at the University Strathclyde facilitates the potential for rapid scanning of large areas and volumes in hazardous locations. A common problem for both manual and remote deployment approaches lies in the intrinsic stand-off and surface coupling issues of typical NDE probes. The associated complications of these requirements are obviously significantly exacerbated when considering aerial based remote inspection and deployment, resulting in simple visual techniques being the preferred sensor payload. Researchers at Bristol Robotics Laboratory have developed biomimetic tactile sensors modelled on the facial whiskers (vibrissae) of animals such as rats and mice, with the latest sensors actively sweeping their tips across the surface in a back and forth motion. The current work reports on the design and performance of an aerial inspection platform and the suitability of tactile whisking sensors to aerial based surface monitoring applications.

MacLeod, C. N.; Cao, J.; Pierce, S. G.; Dobie, G.; Summan, R. [Centre for Ultrasonic Engineering, University of Strathclyde, Glasgow, G1 1XW (United Kingdom); Sullivan, J. C.; Pipe, A. G. [Bristol Robotics Laboratory, University of the West of England, Bristol, BS16 1QY (United Kingdom)

2014-02-18T23:59:59.000Z

282

High Resolution 1H NMR Spectroscopy of Metabolically Active Microorganisms Using Non-Destructive Magic Angle Spinning  

SciTech Connect (OSTI)

It is shown that the resolution of the 1H NMR metabolite spectra of densely packed microbial cells or biofilms attached to solid surfaces can be significantly enhanced with the so-called PASS R.F pulse sequence combined with slow (40-100 Hz) magic angle spinning of the sample. Hence this technique can be used to study biofilm metabolism under environmentally relevant conditions in a minimally invasive way.

Hu, Jian Z.; Wind, Robert A.; Mclean, Jeffrey S.; Gorby, Yuri A.; Resch, Charles T.; Fredrickson, Jim K.

2004-12-01T23:59:59.000Z

283

J. European Ceramic Soc. 21 [9] (2001) 1249-59. NON-DESTRUCTIVE MECHANICAL CHARACTERIZATION OF SiC  

E-Print Network [OSTI]

National d'Etudes et de Recherches Aérospatiales (ONERA), Département Matériaux & SystÚmes Composites (DMSC

Paris-Sud XI, Université de

284

A large HPGe detector for the non-destructive radioassay of an ultra-low-background counting facility  

E-Print Network [OSTI]

We present the use of a low background counting facility, equipped with a p-type 80% relative efficiency HPGe detector, protected by active and passive shielding, and large enough to count a 10" photo-multiplier tube (PMT). A GEANT4 Monte-Carlo of this detector was developed and tuned to 3% accuracy. We report the U, Th, and K contents in three different types of PMTs used in current neutrino experiments, with accuracies of $\\sim 10$ ppb for U and Th and of $\\sim 15$ ppm for K.

M. Fechner; C. Henson; J. Gaffiot; T. Lasserre; A. Letourneau; D. Lhuillier; G. Mention; Th. A. Mueller; R. Quéval; R. Svoboda

2011-01-20T23:59:59.000Z

285

Generalized Debye series expansion to improve the non-destructive testing and health monitoring of cylindrical structures by guided waves  

Science Journals Connector (OSTI)

Many structures in civil engineering notably bridges and nuclear power plants must be regularly strictly and carefully tested to avoid any human or environmental catastrophe. Among the NDT techniques which can be applied ultrasonic guided waves are a good candidate to monitor bars and cables. However its multimodal and dispersive behaviors can limit its performances. Theoretical modeling is sometimes needed to understand the behavior of the traveling waves to improve the testing/monitoring and made a right in-situ decision. The aim of this paper is to derive the space-time velocity field in a cylindrical waveguide perfectly embedded in an infinite solid matrix and generated by an inside bounded beam. This beam is generated by an off-axis source. Vector Hankel transform and Fourier series are combined to decompose the inside field into infinity of elementary cylindrical waves propagating in radial direction and planar waves propagating in axial direction. Global resolution method and Generalized Debye series expansion are used both to calculate the 3D global cylindrical reflection/transmission coefficients. The method is demonstrated through a steel bar embedded in cement matrix. Simulated frequency–wavenumber diagrams show that the embedding material acts like filter for different frequency ranges. Other results will be presented.

Nico F. Declercq

2013-01-01T23:59:59.000Z

286

The Application of FT-MIR Spectroscopy for the Evaluation of Energy Value, Fat Content, and Fatty Acid Composition in Selected Organic Oat Products  

Science Journals Connector (OSTI)

In this study, Fourier transform mid-infrared (FT-MIR) spectroscopy was investigated as a rapid and non-destructive method for the determination of selected quality parameters of oat flakes and cakes. The spec...

Magdalena Reder; Piotr Koczo?; Magdalena Wirkowska…

2014-03-01T23:59:59.000Z

287

Roadmap for Nondestructive Evaluation of Reactor Pressure Vessel...  

Broader source: Energy.gov (indexed) [DOE]

of one or more NDE techniques that can assist in the determination of current RPV fracture toughness as well as in prediction of fracture toughness with further aging of the...

288

Evaluation of the United States Support Program’s Internship and Junior Professional Officer Programs  

SciTech Connect (OSTI)

The U.S. Support Program (USSP) to International Atomic Energy Agency (IAEA) Safeguards established a program of one-year paid internships for students and recent graduates. The program was in effect from 2002 until 2006 with a total of forty-one U.S. citizens and permanent residents placed in the IAEA. The USSP created a Junior Professional Officer (JPO) Program in 2005 that replaced the internship program at the IAEA. The JPO program creates opportunities for U.S. college graduates to become IAEA employees for a period of one to two years to help increase the effectiveness and efficiency of safeguards. The twenty three former and current JPOs work in varying fields such as software development, information collection and analysis, non-destructive analysis systems, and unattended monitoring systems. This paper will look at the impacts of the USSP internship and JPO program on the interns and JPOs, the U.S. government, and the IAEA. Academic backgrounds, past involvement in nuclear fields, program assessment, and post-program positions were recorded and analyzed through two studies using questionnaires sent to former interns and former and current JPOs. This paper will discuss the effects of the programs on the careers of the interns and JPOs, present the evaluations of the internship and JPO Programs, and report the recommendations for changes.

Cruz J.; Patterson, J.; Pepper, S.

2012-07-15T23:59:59.000Z

289

Research in nondestructive evaluation techniques for nuclear reactor concrete structures  

SciTech Connect (OSTI)

The purpose of the Materials Aging and Degradation (MAaD) Pathway of the Department of Energy's Light Water Reactor Sustainability (LWRS) Program is to develop the scientific basis for understanding and predicting longterm environmental degradation behavior of material in nuclear power plants and to provide data and methods to assess the performance of systems, structures, and components (SSCs) essential to safe and sustained nuclear power plant operations. The understanding of aging-related phenomena and their impacts on SSCs is expected to be a significant issue for any nuclear power plant planning for long-term operations (i.e. service beyond the initial license renewal period). Management of those phenomena and their impacts during long-term operations can be better enable by improved methods and techniques for detection, monitoring, and prediction of SSC degradation. The MAaD Pathway R and D Roadmap for Concrete, 'Light Water Reactor Sustainability Nondestructive Evaluation for Concrete Research and Development Roadmap', focused initial research efforts on understanding the recent concrete issues at nuclear power plants and identifying the availability of concrete samples for NDE techniques evaluation and testing. [1] An overview of the research performed by ORNL in these two areas is presented here.

Clayton, Dwight; Smith, Cyrus [Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831 (United States)

2014-02-18T23:59:59.000Z

290

Welding of cast A359/SiC/10p metal matrix composites  

E-Print Network [OSTI]

arc welding GTAW Gas tungsten arc welding HAZ Heat affected zone HF High frequency MMC Metal matrix composite MMCs Metal matrix composites NDE Non-destructive examination SAW Submerged arc welding SMAW Shielded metal arc... limited their applications. Further, the use of composite materials requires us to stay from the established processes and areas of practice that were relevant to more conventional engineering materials. Except for gas tungsten arc welding (GTAW...

Kothari, Mitul Arvind

2005-11-01T23:59:59.000Z

291

APPLICATION OF RESONANT ULTRASOUND SPECTROSCOPY IN DIAGNOSTICS OF RINGS  

E-Print Network [OSTI]

used for nondestructive evaluation (NDE) of different objects, e.g. metal or ceramic products. Heyliger laminate. They found that RUS can be used as a NDE technique for detecting flaws in ma- terial. Adachi et

292

Damage Detection and Characterization in Smart Material Structures \\Lambda y  

E-Print Network [OSTI]

in which self­testing nondestructive evaluation (NDE) techniques may be employed. There are several ways for including geometry of the damage in any NDE testing scheme, something which is not easily done in frequency

293

Scattering of long-wavelength elastic waves from localized defects in solids  

E-Print Network [OSTI]

about the latter and therefore has been extensively used for nondestructive evaluation (NDE and should be incorporated in comprehensive NDE programs. II. REVIEW OF SCATTERING THEORY Gubernatis et al

294

DEVELOPMENT OF NONLINEAR TIME REVERSED ACOUSTICS (NLTRA) FOR APPLICATIONS TO CRACK DETECTION IN SOLIDS  

E-Print Network [OSTI]

of Nondestructive Evaluation (NDE) exhibit extremely high sensitivity to the presence of cracks. Time Reverse stones and long-distance communication in the ocean. The Nondestructive Evaluation (NDE) applications,4] and detection of cracks in a thin air-filled hollow cylinder [5]. A review of TRA applications to NDE is given

295

Modeling the Flash-Heat Experiment on Porous H.T. Banks1  

E-Print Network [OSTI]

Nondestructive evaluation (NDE) is an important tool in many fields. Nonde- structive evaluation is used current, acoustic emission and radiology are a few examples of NDE techniques. These techniques have been in the interrogation signal of any NDE technique. In [6] where we investigated using active ther- mography to detect

296

IDENTIFICATION OF MATERIAL DAMAGE IN TWO DIMENSIONAL DOMAINS  

E-Print Network [OSTI]

IDENTIFICATION OF MATERIAL DAMAGE IN TWO DIMENSIONAL DOMAINS USING SQUID BASED NDE SYSTEM H on such problems entails quantitative nondestructive evaluation methods in SQUID-based NDE system [1]. It is well, SQUID based nondestructive evaluation (NDE) systems using injection current methods have been recently

297

IDENTIFICATION OF MATERIAL DAMAGE IN TWO DIMENSIONAL DOMAINS  

E-Print Network [OSTI]

IDENTIFICATION OF MATERIAL DAMAGE IN TWO DIMENSIONAL DOMAINS USING SQUID BASED NDE SYSTEM H#ort on such problems entails quantitative nondestructive evaluation methods in SQUID­based NDE system [1]. It is well nondestructive evaluation (NDE) systems using injection current methods have been recently developed [3, 4

298

Imaging nonlinear scatterers applying the time reversal mirror T. J. Ulricha  

E-Print Network [OSTI]

evaluation NDE applications of linear TRM to date include detection of small, low-contrast defects within applied to nondestructive evaluation NDE have demonstrated that the nonlinear elastic response applications to NDE have been developed by many groups in the US, Europe, and Russia. TRA focusing, providing

299

Program Evaluation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Evaluation: Background and Methods Evaluation: Background and Methods Definition of evaluation: the process of determining the worth or merit of something; if "something" is a program, then it's "program evaluation." Other types of evaluation include: product evaluation (most widely practiced, e.g., Consumer Reports); personnel evaluation; research evaluation; policy studies; art, movie, play, and book reviews. Program evaluation is NOT the same as research although they share many characteristics--Both: Start with questions Use similar methods Provide similar information Program evaluation focuses on decisions. Research focuses on answering questions about phenomena to discover new knowledge and test theories/hypotheses. Research is aimed at truth. Evaluation is aimed at

300

1 Copyright 2004 by ASME Proceedings of IMECE 2004  

E-Print Network [OSTI]

evaluation (NDE), e.g., ultrasonics, eddy currents, etc., only that they use the embedded sensors. Hence, the active SHM could be seen as "embedded NDE". One widely used active SHM method employs piezoelectric wafer, delaminations, disbonds, and corrosion. Due to its similarities to NDE ultrasonics, this approach is also known

Giurgiutiu, Victor

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Thermal Interrogation of Porous Materials Brittany Boudreaux1  

E-Print Network [OSTI]

medium. 2 #12;1 Introduction Nondestructive evaluation (NDE) is a very useful tool as structures age beyond their design life. Proper use of NDE can increase the safety and longevity of components in aircraft, spacecraft, automobiles, trains, and piping. There are many different NDE methods including

302

JOURNAL OF PERFORMANCE OF CONSTRUCTED FACILITIES / FEBRUARY 2000 / 11 CUTOFF FREQUENCIES FOR IMPULSE RESPONSE TESTS  

E-Print Network [OSTI]

observed in the NGES tests related to cutoff frequency. INTRODUCTION Nondestructive evaluation (NDE are no longer available. Eval- uation of existing foundations differs from the usual methods of NDE in that a structure now covers the tops of deep foun- dations, and this structure alters the results of an NDE test

303

Stress-wave velocity of wood-based panels: Effect of moisture,  

E-Print Network [OSTI]

for wood-based panel products. In the forest products industry, nondestructive evaluation (NDE) technology, Ross and Pellerin 1994). One NDE technique, which uses stress-wave propagation characteristics, has received considerable atten- tion. Stress-wave-based NDE techniques have been investi- gated extensively

304

Real Time Computational Algorithms for Eddy Current Based Damage Detection  

E-Print Network [OSTI]

;cant reduction in computational time. 1. Introduction Nondestructive evaluation (NDE) is the process of examining a material or article without impairing its future usefulness. NDE is sometimes referred) measure geometric characteristics. Some typical structures or products inspected through the use of NDE

305

1 Copyright 2004 by ASME Proceedings of IMECE 2004  

E-Print Network [OSTI]

those of nondestructive evaluation (NDE), e.g., ultrasonics, eddy currents, etc., only that they are used with embedded sensors. Hence, the active SHM could be seen as a method of embedded NDE. One widely similarities to NDE ultrasonics, this approach is als

Giurgiutiu, Victor

306

JOURNAL OF MECHANICS OF MATERIALS AND STRUCTURES Vol. , No. ,  

E-Print Network [OSTI]

. Introduction The current use of nondestructive evaluation (NDE) technologies is limited by the fact that the NDE inspection can be carried out only if the area to be inspected is accessible. In most cases or even continuous monitoring are not feasible with the existing NDE techniques [Beral and Speckmann 2003

Giurgiutiu, Victor

307

Improving the air coupling of bulk piezoelectric transducers with wedges of power-law profiles: A numerical study  

E-Print Network [OSTI]

-resolution imaging in nondestructive evaluation (NDE) of elastic structures [1,2]. Other applications include medical needs (imaging, hyperthermia, and lithotripsy) [3] and underwater communication [4]. NDE tech- niques and micro-machined ultrasonic transducers (MUTs). The first category is still used extensively for NDE

308

Statistical Methods for Automatic Crack Detection Based on Vibrothermography Sequence-of-Images Data  

E-Print Network [OSTI]

of detection, Signal-to-noise ratio. #12;1 INTRODUCTION 1.1 Background Nondestructive evaluation (NDE) methods in structures by non-intrusive physical measurements. There exists random measurement noise for most NDE applications and statistical methods are needed for NDE data analysis. MIL-HDBK-1823A [1] describes

309

Thermal Based Damage Detection in Porous Materials H. T. Banks1,  

E-Print Network [OSTI]

evaluation (NDE) is a very useful tool that enjoys widespread use in testing struc- tures, especially as they age beyond their design life. Proper use of NDE can increase the safety and service life of components in aircraft, spacecraft, automobiles, trains, and piping. There are numerous viable NDE methods including

310

Center of Excellence in Structural Health Monitoring  

E-Print Network [OSTI]

Evaluation (NDE) group in 1990 and became team leader 1995. In 2002 he moved to Washington DC where he became the Composite Materials and NDE Program Officer at the Office of Naval Research where he currently works Research, Composite Materials and NDE Program 9:35 Damage Mechanics in Brittle Graphite: Theory

311

CATEGORY: Real-World Applications EVALUATION OF GENETIC PROGRAMMING AND NEURAL  

E-Print Network [OSTI]

as a data-base for the training and testing of the algorithms. 1 INTRODUCTION Nuclear materials safeguard FOR NUCLEAR MATERIAL IDENTIFICATION Sara Pozzi Department of Nuclear Engineering Polytechnic of Milan Milan Abstract Nuclear materials safeguard efforts necessitate the use of non-destructive methods to determine

Fernandez, Thomas

312

NDE Development for ACERT Engine Components  

Broader source: Energy.gov (indexed) [DOE]

Collaborators: Jeff Jensen, Nate Phillips Caterpillar, Inc. HT Lin, Mike Kass, D. Ray Johnson Oak Ridge National Laboratory DOE Annual Merit Review, June 7-11, 2010 This...

313

NDE DEVELOPMENT FOR ACERT ENGINE COMPONENTS  

Broader source: Energy.gov (indexed) [DOE]

Barrier Coating (TBC) 12 PM024 TBCs applied on engine exhaust components reduce heat loss so improve efficiency; they also replace the use of expensive high-temperature...

314

Erosion/corrosion concerns in feed preparation systems at the Defense Waste Processing Facility  

SciTech Connect (OSTI)

The Savannah River Site (SRS) has been operating a nuclear fuel cycle since the 1950`s to produce nuclear materials in support of the national defense effort. The Department of Energy authorized the construction of the Defense Waste Processing Facility (DWPF) to immobilize the high level radioactive waste resulting from these processes as a durable borosilicate glass. The DWPF, after having undergone extensive testing, has been approved for operations and is currently immobilizing radioactive waste. To ensure reliability of the DWPF remote canyon processing equipment, a materials evaluation program was performed prior to radioactive operations to determine to what extent erosion/corrosion would impact design life of equipment. The program consisted of performing pre-service baseline inspections on critical equipment and follow-up inspections after completion of DWPF cold chemical demonstration runs. Non-destructive examination (NDE) techniques were used to assess erosion/corrosion as well as evaluation of corrosion coupon racks. These results were used to arrive at predicted equipment life for selected feed preparation equipment. It was concluded with the exception of the coil and agitator for the slurry mix evaporator (SME), which are exposed to erosive glass frit particles, all of the equipment should meet its design life.

Gee, J.T.; Chandler, C.T.; Daugherty, W.L.; Imrich, K.J.; Jenkins, C.F.

1997-12-31T23:59:59.000Z

315

Failure Analysis of Cracked FS-85 Tubing and ASTAR-811C End Caps  

SciTech Connect (OSTI)

Failure analyses were performed on cracked FS-85 tubing and ASTAR-811C and caps which had been fabricated as components of biaxial creep specimens meant to support materials testing for the NR Space program. During the failure analyses of cracked FS-85 tubing, it was determined that the failure potentially could be due to two effects: possible copper contamination from the EDM (electro-discharge machined) recast layer and/or an insufficient solution anneal. to prevent similar failures in the future, a more formal analysis should be done after each processing step to ensure the quality of the material before further processing. During machining of the ASTAR-811FC rod to form end caps for biaxial creep specimens, linear defects were observed along the center portion of the end caps. These defects were only found in material that was processed from the top portion of the ingot. The linear defects were attributed to a probable residual ingot pipe that was not removed from the ingot. During the subsequent processing of the ingot to rod, the processing temperatures were not high enough to allow self healing of the ingot's residual pipe defect. To prevent this from occurring in the future, it is necessary to ensure that complete removal of the as-melted ingot pipe is verified by suitable non-destructive evaluation (NDE).

ME Petrichek

2006-02-09T23:59:59.000Z

316

Damage Assessment Technologies for Prognostics and Proactive Management of Materials Degradation  

SciTech Connect (OSTI)

The Nuclear Regulatory Commission has undertaken a program to lay the groundwork for defining proactive actions to manage degradation of materials in light water reactors (LWRs). This paper discusses the U.S. Nuclear Regulatory Commission’s Proactive Management of Materials Degradation (PMMD) program and its application to nuclear power plant structures, systems and components. The PMMD program is examining LWR component materials and the degradation phenomena that affect them. Of particular interest is how such phenomena can be monitored to predict degradation and prevent component failure. Some forms of degradation, including some modes of stress corrosion cracking, are characterized by a long initiation time followed by a rapid growth phase. Monitoring such long-term degradation will require new non-destructive evaluation (NDE) methods and measurement procedures. A critical analysis of all reactor components is required to determine if new inspection strategies are required to effectively manage slow degradation mechanisms that may lead to component failure. As reactor lifetimes are extended, degradation mechanisms previously considered too long-term to be of consequence (such as concrete and wiring insulation degradation) may become more important. This paper includes a review of techniques with potential for sensing and monitoring degradation in its early stages and will concisely explain the basic principles of PMMD and its relationship to in-service inspection, condition based maintenance, and advanced diagnostics and prognostics.

Bond, Leonard J.; Doctor, Steven R.; Griffin, Jeffrey W.; Hull, Amy B.; Malik, Shah

2011-01-01T23:59:59.000Z

317

Backscatter x-ray development for space vehicle thermal protection systems  

SciTech Connect (OSTI)

The Backscatter X-Ray (BSX) imaging technique is used for various single sided inspection purposes. Previously developed BSX techniques for spray-on-foam insulation (SOFI) have been used for detecting defects in Space Shuttle External Tank foam insulation. The developed BSX hardware and techniques are currently being enhanced to advance Non-Destructive Evaluation (NDE) methods for future space vehicle applications. Various Thermal Protection System (TPS) materials were inspected using the enhanced BSX imaging techniques, investigating the capability of the method to detect voids and other discontinuities at various locations within each material. Calibration standards were developed for the TPS materials in order to characterize and develop enhanced BSX inspection capabilities. The ability of the BSX technique to detect both manufactured and natural defects was also studied and compared to through-transmission x-ray techniques. The energy of the x-ray, source to object distance, angle of x-ray, focal spot size and x-ray detector configurations were parameters playing a significant role in the sensitivity of the BSX technique to image various materials and defects. The image processing of the results also showed significant increase in the sensitivity of the technique. The experimental results showed BSX to be a viable inspection technique for space vehicle TPS systems.

Bartha, Bence B.; Hope, Dale; Vona, Paul; Born, Martin; Corak, Tony [USA NDE, United Space Alliance, Cape Canaveral, FL 32920 (United States)

2011-06-23T23:59:59.000Z

318

Predicting Flaw-Induced Resonance Spectrum Shift with Theoretical Perturbation Analysis  

SciTech Connect (OSTI)

Resonance inspection is an emerging non-destructive evaluation (NDE) technique which uses the resonance spectra differences between the good part population and the flawed parts to identify anomalous parts. It was previously established that finite-element (FE)-based modal analysis can be used to predict the resonance spectrum for an engineering scale part with relatively good accuracy. However, FE-based simulations can be time consuming in examining the spectrum shifts induced by all possible structural flaws. This paper aims at developing a computationally efficient perturbation technique to quantify the frequency shifts induced by small structural flaws, based on the FE simulated resonance spectrum for the perfect part. A generic automotive connecting rod is used as the example part for our study. The results demonstrate that the linear perturbation theory provides a very promising way in predicting frequency changes induced by small structural flaws. As the flaw size increases, the discrepancy between the perturbation analysis and the actual FE simulation results increases due to nonlinearity, yet the perturbation analysis is still able to predict the right trend in frequency shift.

Lai, Canhai; Sun, Xin

2013-10-28T23:59:59.000Z

319

Optimized Volumetric Scanning for X-Ray Array Sources  

SciTech Connect (OSTI)

Non-destructive evaluation (NDE) is the science and technology of determining non-invasively the internal structure of manufactured parts, objects, and materials. NDE application areas include medicine, industrial manufacturing, military, homeland security, and airport luggage screening. X-ray measurement systems are most widely used because of their ability to image through a wide range of material densities (from human tissue in medical applications to the dense materials of weapon components). Traditional x-ray systems involve a single source and detector system that rotate and/or translate about the object under evaluation. At each angular location, the source projects x-rays through the object. The rays undergo attenuation proportional to the density of the object's constitutive material. The detector records a measure of the attenuation. Mathematical algorithms are used to invert the forward attenuated ray projection process to form images of the object. This is known as computed tomography (CT). In recent years, the single-source x-ray NDE systems have been generalized to arrays of x-ray sources. Array sources permit multiple views of the object with fewer rotations and translations of the source/detector system. The spatially diverse nature of x-ray array sources has the potential of reducing data collection time, reducing imaging artifacts, and increasing the resolution of the resultant images. Most of the existing CT algorithms were not derived from array source models with a spatially diverse set of viewing perspectives. Single-source x-ray CT data collection, processing, and imaging methods and algorithms are not applicable when the source location is expanded from one dimension (a rotating and/or translating point source) to two (a rotating and/or translating array). They must be reformulated. The goal of this project is to determine the applicability of x-ray array sources to problems of interest to LLNL and its customers. It is believed array source data collection will be faster while yielding higher resolution reconstructions with fewer artifacts. There are three tasks in the research: (1) Develop forward array source analytic and computational models; (2) Research and develop array source reconstruction algorithms; and (3) Perform experiments.

Lehman, S K; Foudray, A M; Wang, A; Kallman, J S; Martz, H

2009-09-29T23:59:59.000Z

320

Evaluation of IR techniques for detection of wall thinning in service water piping  

SciTech Connect (OSTI)

Service water piping systems at electric power plants provide cooling for a variety of safety and non-safety related components and systems. Assessing integrity of the service water piping system includes detection and analysis of pipe wall thinning. Conventional inspection techniques usually involve the time-intensive process of ultrasonic thickness measurements, based on a grid system, of the entire pipe length. An alternative to this process may lie in the use of active infrared thermography techniques for detection of thin wall areas in the pipe. The EPRI NDE Center participated in a preliminary evaluation of this technology at Vermont Yankee Nuclear Power Plant. Based on the promising results of the Vermont Yankee activity, the Center worked with Thermal Wave Imaging, Inc. (TWI) in an effort to optimize the IR thermal injection technique for service water piping applications. The primary goals of this effort were to determine the practical depth resolution capabilities of the thermal injection method in carbon steel, and also to minimize the effects of pipe curvature on detection capabilities. Both of these efforts were subject to the constraint that the system be sufficiently portable for use in an electrical power plant, where space and access to the pipe surface is often limited.

Zayicek, P. [EPRI NDE Center, Charlotte, NC (United States); Shepard, S.M. [Thermal Wave Imaging, Inc., Lathrup Village, MI (United States)

1996-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Using Non-destructive X-Ray Fluorescence Analysis to Investigate the Prehistoric Use and Distribution of Hornfels in Southern Quebec  

Science Journals Connector (OSTI)

In the middle St. Lawrence Valley of southern Quebec, Canada, there is a lack of ... quartz, shale, and hornfels). In southern Quebec, Cretaceous igneous intrusions created the Monteregian hills ... least 21 othe...

A. L. Burke; G. Gauthier

2011-01-01T23:59:59.000Z

322

A technical review of non-destructive assay research for the characterization of spent nuclear fuel assemblies being conducted under the US DOE NGSI  

SciTech Connect (OSTI)

There is a growing belief that expansion of nuclear energy generation will be needed in the coming decades as part of a mixed supply chain to meet global energy demand. At stake is the health of the economic engine that delivers human prosperity. As a consequence renewed interest is being paid to the safe management of spent nuclear fuel (SNF) and the plutonium it contains. In addition to being an economically valuable resource because it can be used to construct explosive devices, Pu must be placed on an inventory and handled securely. A multiinstitutional team of diverse specialists has been assembled under a project funded by the US Department of Energy (DOE) Next Generation Safeguards Initiative (NGSI) to address ways to nondestructively quantify the plutonium content of spent nuclear fuel assemblies, and to also detect the potential diversion of pins from those assemblies. Studies are underway using mostly Monte Carlo tools to assess the feasibility, individual and collective performance capability of some fourteen nondestructive assay methods. Some of the methods are familiar but are being applied in a new way against a challenging target which is being represented with a higher degree of realism in simulation space than has been done before, while other methods are novel. In this work we provide a brief review of the techniques being studied and highlight the main achievements to date. We also draw attention to the deficiencies identified in for example modeling capability and available basic nuclear data. We conclude that this is an exciting time to be working in the NDA field and that much work, both fundamental and applied, remains ahead if we are to advance the state of the practice to meet the challenges posed to domestic and international safeguards by the expansion of nuclear energy together with the emergence of alternative fuel cycles.

Croft, Stephen [Los Alamos National Laboratory; Tobin, Stephen J [Los Alamos National Laboratory

2010-12-06T23:59:59.000Z

323

Non Destructive Thermal Analysis and In Situ Investigation of Creep Mechanism of Graphite and Ceramic Composites using Phase-sensitive THz Imaging & Nonlinear Resonant Ultrasonic Spectroscopy  

SciTech Connect (OSTI)

In this project, we conducted a comprehensive study on nuclear graphite properties with terahertz (THz) imaging. Graphite samples from Idaho National Laboratory were carefully imaged by continuous wave (CW) THz. The CW THz imaging of graphite shows that the samples from different billet with different fabricating conditions have different pore size and structure. Based on this result, we then used a phase sensitive THz system to study the graphite properties. In this exploration, various graphite were studied. By imaging nuclear graphite samples in reflection mode at nine different incident polarization angles using THz timedomain- spectroscopy, we find that different domain distributions and levels of porosity will introduce polarization dependence in THz reflectivity. Sample with higher density is less porous and has a smaller average domain distribution. As a consequence, it is less polarization-dependent and the polarizationdependent frequency is higher. The results also show that samples oxidized at higher temperatures tend to be more polarization dependent. The graphite from the external billet is more polarization dependent compared to that from the center billet. In addition, we performed laser-based ultrasonic measurements on these graphite samples. The denser, unoxidized samples allow surface acoustic waves to propagate more rapidly than in the samples that had already undergone oxidation. Therefore, for the oxidized samples, the denser samples show less polarization-dependence, higher polarization-dependent frequency, and allow the surface acoustic waves propagate faster.

XI-Cheng Zhang; David Hurley; Albert Redo-sanchez

2012-11-26T23:59:59.000Z

324

A Technical Review of Non-Destructive Assay Research for the Characterization of Spent Nuclear Fuel Assemblies Being Conducted Under the US DOE NGSI - 11544  

E-Print Network [OSTI]

Energy Research Institute; 8 Lawrence Berkeley National Laboratory; 9 University of California – Berkeley Abstract

Croft, S.

2012-01-01T23:59:59.000Z

325

Use of delayed gamma rays for active non-destructive assay of 235U irradiated by pulsed neutron source (plasma focus)  

Science Journals Connector (OSTI)

Abstract A pulsed neutron source based on plasma focus device has been used for active interrogation and assay of 235U by monitoring its delayed high energy ?-rays. The method involves irradiation of fissile material by thermal neutrons obtained after moderation of a burst of neutrons emitted upon fusion of deuterium in plasma focus (PF) device. The delayed gamma rays emitted from the fissile material as a consequence of induced fission were detected by a large volume sodium iodide (NaI(Tl)) detector. The detector is coupled to a data acquisition system of 2k input size with 2k ADC conversion gain. Counting was carried out in pulse height analysis mode for time integrated counts up to 100 s while the temporal profile of delayed gamma has been obtained by counting in multichannel scaling mode with dwell time of 50 ms. To avoid the effect of passive (natural) and active (from surrounding materials) backgrounds, counts have been acquired for gamma energy between 3 and 10 MeV. The lower limit of detection of 235U in the oxide samples with this set-up is estimated to be 14 mg.

Sanjay Andola; Ram Niranjan; T.C. Kaushik; R.K. Rout; Ashwani Kumar; D.B. Paranjape; Pradeep Kumar; B.S. Tomar; K.L. Ramakumar; S.C. Gupta

2014-01-01T23:59:59.000Z

326

A Technical Review of Non-Destructive Assay Research for the Characterization of Spent Nuclear Fuel Assemblies Being Conducted Under the US DOE NGSI - 11544  

E-Print Network [OSTI]

NA-24), National Nuclear Security Administration, U.S.nuclear energy together with the emergence of alternative fuel cycles. Introduction Energy security

Croft, S.

2012-01-01T23:59:59.000Z

327

SIA: A Safeguard Inspector Assistant to Plutonium Isotopic Composition Measurements by Means of Gamma Ray Spectrometry  

Science Journals Connector (OSTI)

In this paper we describe the design of a knowledge-based supporting system for Non Destructive Analysis of Plutonium isotopic composition, which fits into an integrated data evaluation scheme for safeguards. Thi...

Biancamaria Carniel; Gianfranco De Grandi…

1988-01-01T23:59:59.000Z

328

Signal and imaging sciences workshop proceedings  

SciTech Connect (OSTI)

Papers are presented in the areas of: Medical Technologies; Non-Destructive Evaluation; Applications of Signal/Image Processing; Laser Guide Star and Adaptive Optics; Computational Electromagnetic, Acoustics and Optics; Micro-Impulse Radar Processing; Optical Applications; TANGO Space Shuttle.

Candy, J.V.

1997-11-01T23:59:59.000Z

329

Multi-physics damage sensing in nano-engineered structural composites  

E-Print Network [OSTI]

Non-destructive evaluation techniques can offer viable diagnostic and prognostic routes to mitigating failures in engineered structures such as bridges, buildings and vehicles. However, existing techniques have significant ...

Guzman de Villoria, Roberto

330

Nuclear Nonproliferation,  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

for Wireless Sensing, Sensory Substitution, Multi-rotor Damage Detection, Drill Vibration Reduction, Laser Ultrasonics for Non Destructive Evaluation T y p i c a l P r o j e...

331

Application of 2-dimensional analytic signals with single-quadrant spectra for processing of SAFT-reconstructed images  

Science Journals Connector (OSTI)

The Synthetic Aperture Focusing Technique (SAFT) is an algorithm applied in non-destructive ... Reliable evaluation of the images obtained by the SAFT-algorithm, however, depends on the representation ... to proc...

Christian Höhne; Rainer Boehm…

2014-10-01T23:59:59.000Z

332

E-Print Network 3.0 - angiostrongylus costaricencis morera Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Petkov, A. Sebbar, A. Yger, Addison Wesley, London. 38. Morera Theorems via Microlocal... Tomography in Non-destructive Evaluation, Inverse Problems 14(1998), 339-353. 40. A Morera...

333

Reliability Tools for Resonance Inspection of Light Metal Castings...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

for Light Metal Castings FY 2009 Progress Report for Lightweighting Materials - 10. Nondestructive Evaluation NDE 701: Enhanced Resonance Inspection for Light Metal Castings...

334

Biological Evaluation  

Broader source: Energy.gov (indexed) [DOE]

Biological Evaluation Biological Evaluation for the Proposed United States Army Military Training Activities on the Savannah River Site Department of the Army - Fort Gordon Range Control - Directorate of Plans, Training, Mobilization, and Security Location: Aiken, Allendale, and Barnwell Counties, SC., Savannah River Site Contact Person: Donald S. McLean, 706-840-5522 / 706-791-2422 Submitted by Fort Gordon Range Control Training Facility Coordinator (DPTMS) Prepared By: ___________________________________________________________________ Donald S. McLean, Training Facility Coordinator Fort Gordon Georgia Date: 2 Table of Contents Summary, Page 4 Introduction, Page 6 Project Description, Page 6 Purpose and Need for Proposed Action, Page 7

335

Evaluation of HEPA filter service life  

SciTech Connect (OSTI)

Rocky Flats Environmental Technology Site (RFETS), has approximately 10,000 High Efficiency Particulate Air (HEPA) Filters installed in a variety of filter plenums. These ventilation/filtration plenum systems are used to control the release of airborne particulate contaminates to the environment during normal operations and potential accidents. This report summarizes the results of destructive and non-destructive tests on HEPA filters obtained from a wide variety of ages and service conditions. These tests were performed to determine an acceptable service life criteria for HEPA filters used at Rocky Flats Environmental Technology Site (RFETS). A total of 140 filters of various ages (1972 to 1996) and service history (new, aged unused, used) were tested. For the purpose of this report, filter age from manufacture date/initial test date to the current sample date was used, as opposed to the actual time a filter was installed in an operating system.

Fretthold, J.K.; Stithem, A.R.

1997-07-14T23:59:59.000Z

336

Evaluation Instruments  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Teacher Logs Teacher Logs Teacher logs are to be collected 'pre' and 'post' program for the purpose of exploring changes in teaching practice that may have resulted from participation in the summer institute. Pre-Program: Identify teachers who will be asked to complete teacher logs plus 2-3 alternates. Telephone these teachers and include the following information: Teacher logs are a relatively new form of evaluating programs. We are using them to help us improve our program and to assess the extent to which the program affects teaching and learning. They have been selected randomly from teacher-participants of the [Name of Program] to help us evaluate our program. Several teachers in this and other programs are being asked to complete logs to assess the overall effectiveness of XX programs nationwide.

337

Moving Beyond Nondestructive Examination to Proactive Management of Materials Degradation  

SciTech Connect (OSTI)

There is growing interest in life extensions to enable longer term operation (LTO) for both existing nuclear power plants (NPPs) and proposed new NPPs. In order to justify an initial license extension for the 40-60 year period, new non-destructive examination (NDE) approaches have been developed and deployed by NPP operators in their Aging Management Programs (AMPs). However, to achieve the goals of even longer term operation, and specifically for the USA in looking at methodologies to support subsequent license renewal periods (i.e., 60-80 years, and beyond), it is necessary to understand the capabilities of current NDE methods to detect, monitor and trend degradation and hence enable timely implementation of appropriate corrective actions. This paper discusses insights from past experience, the state-of-the-art, and current activities in the move towards providing a capacity for proactive management of materials degradation (PMMD) to support NPP LTO.

Bond, Leonard J.

2010-07-01T23:59:59.000Z

338

Design and demonstration of an analysis Information system for magnetic flux leakage inspection of natural gas pipeline. Final letter report  

SciTech Connect (OSTI)

A staff exchange was conducted for the mutual benefit of the Department of Energy, the Gas Research Institute (GRI), Vetco Pipeline Services Inc. (VPSI), and the Pacific Northwest National Laboratory. This staff exchange provided direct exposure by a Laboratory staff member knowledgeable in inspection, integrity assessment, and robotic capabilities of the Laboratory to the needs of the natural gas pipeline industry. The project included an assignment to the GRI Pipeline Simulation Facility (PSF) during the period preceding the commissioning of the flow loop. GRI is interested in exploiting advanced technology at the National Laboratories. To provide a sense of the market impact, it is estimated that $3 billion was spent in 1993 for the repair, renovation, and replacement of distribution piping. GRI has goals of saving the distribution industry $500 million in Operations and Maintenance costs and having an additional $250M savings impact on transmission pipelines. The objectives of the project included: (1) For PNNL staff to present technology to GRI and PSF staff on non- destructive evaluation, robotics, ground penetrating radar, and risk based inspection guidelines for application to the operation and maintenance of natural gas pipelines. (2) For GRI and PSF staff to discuss with PNNL staff opportunities for improving the industrial competitiveness of operation and maintenance services. (3) To explore the basis for partnership with GRI and PSF staff on technology transfer topics. In this project, staff exchanges were conducted to GRI`s Pipeline Simulation Facility and to VPSI. PNNL . staff had access to the $10M GRI Pipeline Simulation Facility (PSF) at West Jefferson, Ohio. The facility has a 4,700-ft. long pipe loop, an NDE laboratory, and a data analysis laboratory. PNNL staff had access to the VPSI`s facility in Houston, TX. VPSI has developed some of the most sophisticated inspection tools currently used in the pipeline inspection industry.

Schuster, G.J.; Saffell, B.A.

1996-10-01T23:59:59.000Z

339

Experimental Investigation of Material Flows Within FSWs Using 3D Tomography  

SciTech Connect (OSTI)

There exists significant prior work using tracers or pre-placed hardened markers within friction stir welding (FSWing) to experimentally explore material flow within the FSW process. Our experiments replaced markers with a thin sheet of copper foil placed between the 6061 aluminum lap and butt joints that were then welded. The absorption characteristics of x-rays for copper and aluminum are significantly different allowing for non-destructive evaluation (NDE) methods such as x-ray computed tomography (CT) to be used to demonstrate the material movement within the weldment on a much larger scale than previously shown. 3D CT reconstruction of the copper components of the weldment allows for a unique view into the final turbulent state of the welding process as process parameters are varied. The x-ray CT data of a section of the weld region was collected using a cone-beam x-ray imaging system developed at the INL. Six-hundred projections were collected over 360-degrees using a 160-kVp Bremsstrahlung x-ray generator (25-micrometer focal spot) and amorphoussilicon x-ray detector. The region of the object that was imaged was about 3cm tall and 1.5cm x 1cm in cross section, and was imaged at a magnification of about 3.6x. The data were reconstructed on a 0.5x0.5x0.5 mm3 voxel grid. After reconstruction, the aluminum and copper could be easily discriminated using a gray level threshold allowing visualization of the copper components. Fractal analysis of the tomographic reconstructed material topology is investigated as a means to quantify macro level material flow based on process parameters. The results of multi-pass FSWs show increased refinement of the copper trace material. Implications of these techniques for quantifying process flow are discussed.

Charles R. Tolle; Timothy A. White; Karen S. Miller; Denis E. Clark; Herschel B. Smartt

2008-06-01T23:59:59.000Z

340

Exposure Evaluation Process  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

symptoms, further evaluation by HCP, and recommendations from evaluation by referral. It is a clinical judgment based on the history of the exposure, including what is...

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Preliminary Impact Evaluation BBNP  

Broader source: Energy.gov [DOE]

Preliminary Impact Evaluation of the U.S. Department of Energy's Better Buildings Neighborhood Program, 2013.

342

Evaluation Consultant RFP  

Broader source: Energy.gov [DOE]

Evaluation Consultant RFP, from the Tool Kit Framework: Small Town University Energy Program (STEP).

343

On-Line Weld NDE with IR Thermography  

Broader source: Energy.gov (indexed) [DOE]

Weld cracks - Weld porosity Most critical Excessive indentation Stuck weld (insufficient fusion) Less critical Cracks Porosity 10 Managed by UT-Battelle for the Department of...

344

On-Line Weld NDE with IR Thermography  

Broader source: Energy.gov (indexed) [DOE]

advisory committee in the order of importance (high to low) - Weld with no or minimal fusion - Cold or stuck weld - Weld nugget size - Weld expulsion and indentation - Weld...

345

Surge Nozzle NDE Specimen Mechanical Stress Improvement Analysis  

SciTech Connect (OSTI)

The purpose of this project was to perform a finite element analysis of a pressurized water reactor pressurizer surge nozzle mock-up to predict both the weld residual stresses created in its construction and the final stress state after the application of the Mechanical Stress Improvement Process (MSIP). Strain gages were applied to the inner diameter of the mock-up to record strain changes during the MSIP. These strain readings were used in an attempt to calculate the final stress state of the mock-up as well.

Fredette, Lee F.

2011-07-14T23:59:59.000Z

346

Lithium Ion Electrode Production NDE and QC Considerations  

Broader source: Energy.gov [DOE]

Review of Oak Ridge process and QC activities by David Wood, Oak Ridge National Laboratory, at the EERE QC Workshop held December 9-10, 2013, at the National Renewable Energy Laboratory in Golden, Colorado.

347

Embedded NDE with Piezoelectric Wafer Active Sensors in Aerospace Applications  

E-Print Network [OSTI]

square PWAS mounted on an aircraft panel, adjacent to rivet heads and an electric discharge machined (EDM

Giurgiutiu, Victor

348

On-Line Weld NDE with IR Thermography  

Broader source: Energy.gov (indexed) [DOE]

with gaps 17 Managed by UT-Battelle for the Department of Energy no weld Destructive measurement Post-weld signature Accomplishment: Actual Auto Body Parts 2T auto body structures...

349

ORNL_TM360_Concrete_NDE_Roadmap  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

to remove waste heat from the main condenser loop. Cooling towers, used as the primary heat sink, are considered Class I structures and are designed to withstand natural phenomena...

350

Online Weld Quality NDE & Control with IR Thermography  

Broader source: Energy.gov (indexed) [DOE]

noise * Ice Cubes - 0C. Large temperate differential (dT25C), but wet * Vortex Tube Cold Air Gun - dT15C, difficult to control air flow, less consistent * Hot...

351

Remote-handled transuranic system assessment. Volume 1  

SciTech Connect (OSTI)

This document identifies the necessary actions for addressing current questions concerning the safe and efficient disposal of remote-handled transuranic wastes that have been generated through Department of Energy activities. In addition, this document presents summaries of existing information and analyses regarding the potential alternatives for disposing of remote-handled (RH) transuranic (TRU) waste at the Department of Energy (DOE) Waste Isolation Pilot Plant (WIPP). A further discussion of DOE`s approach for addressing RH-TRU issues is contained in the document, Waste Isolation Pilot Plant Remote-Handled Transuranic Waste Disposal Strategy, DOE/WIPP-95-1090 (DOE, 1995a). Of this stored and projected inventory, approximately 30% can be characterized with current technology and subsequently certified to meet the waste acceptance criteria for disposal at WIPP; characterization of the remaining 70% will require the use of alternative techniques. At most of the generator sites, characterization equipment and facilities need to be procured in order for the sites to certify waste for shipment either to WIPP or to an interim site. If surface dose rates are too high, the use of non-invasive techniques such as non-destructive examination (NDE) and non-destructive assay (NDA) may be precluded. Characterization methods using NDA can be effectively used on RH-TRU wastes with surface dose rates of less than 1.0 rem/hr (neutron); NDE methods are effective on waste with surface dose rates of less than 10 rem/hr (gamma). The ability to use current NDE technology on waste with surface dose rates above 10 rem/hr will need to be demonstrated. Alternate characterization techniques, such as examination within a hot cell, could be used for the remaining waste; however, such techniques are labor intensive and would require additional effort to gather assay data. Improvements in characterization capabilities are being pursued through future technology development initiatives.

NONE

1995-11-01T23:59:59.000Z

352

Microsoft Word - 2006FactSR106.doc  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

In-Situ Non Destructive Evaluation to monitor the Health of In-Situ Non Destructive Evaluation to monitor the Health of Thermal Barrier Coatings FACT SHEET I. PROJECT PARTICIPANTS Surendra Tewari, PI, SH 464, Chemical and Biomedical Engineering Department, Cleveland State University, Cleveland, OH 44115 (216) 523-7342 S.Tewari@csuohio.edu Tom George, National Energy Technology Laboratory, P O Box 880, 3610 Collins Ferry Rd, Morgantown, WV 26507-0880 (304) 285-4825 tgeorg@netl.doe.gov Richard Wenglarz, South Carolina Institute for Energy Studies, 386-2 College Ave., Clemson, SC 29634 (864) 656-2267 rwnglrz@clemson.edu II. PROJECT DESCRIPTION A. Objectives Develop in-situ non-destructive evaluation method to monitor the health of TBC using

353

The Partnership Evaluation Framework  

Broader source: Energy.gov [DOE]

U.S. Department of Energy Better Buildings Neighborhood Program: The Partnership Evaluation Framework: How to evaluate a potential partner’s business model and identify areas for collaboration.

354

Evaluation report 2006 Evaluation of Research on  

E-Print Network [OSTI]

on organic farming, i.e. Swedish Farmers' Foundation for Agri- cultural Research (SLF) and the Swedish Board Manager Swedish Farmers' Foundation for Agricultural Research (SLF) Evaluation of Research on Organic

355

Topics in stockpile evaluation  

SciTech Connect (OSTI)

This report is a compilation of previously unpublished papers pertinent to Stockpile Evaluation, Reliability, and Safety activities at Sandia.

Mueller, F.W.

1993-09-01T23:59:59.000Z

356

The CLEAR 2006 evaluation  

Science Journals Connector (OSTI)

This paper is a summary of the first CLEAR evaluation on CLassification of Events, Activities and Relationships - which took place in early 2006 and concluded with a two day evaluation workshop in April 2006. CLEAR is an international effort to evaluate ...

Rainer Stiefelhagen; Keni Bernardin; Rachel Bowers; John Garofolo; Djamel Mostefa; Padmanabhan Soundararajan

2006-04-01T23:59:59.000Z

357

Final Vitrification Melter Evaluation  

Broader source: Energy.gov (indexed) [DOE]

Waste-Incidental-to-Reprocessing Evaluation Waste-Incidental-to-Reprocessing Evaluation for the West Valley Demonstration Project Vitrification Melter February 2012 Prepared by the U.S. Department of Energy West Valley, New York This page is intentionally blank. WASTE-INCIDENTAL-TO-REPROCESSING EVALUATION FOR THE WVDP VITRIFICATION MELTER CONTENTS Revision 0 i NOTATION (Acronyms, Abbreviations, and Units).................................................. v 1.0 INTRODUCTION ...................................................................................................... 1 1.1 Purpose. ................................................................................................................. 2 1.2 Scope and Technical Basis ....................................................................................... 2

358

Navy Technology Evaluation Update  

Broader source: Energy.gov [DOE]

Presentation covers the Navy Technology Evaluation update at the Federal Utility Partnership Working Group (FUPWG) meeting, held on November 18-19, 2009.

359

Enzyme evaluation | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

evaluation Targeted strategies improve efficacy of enzymes to convert biomass to biofuels The Science Biological material derived from plants represents a promising source for...

360

test and evaluation  

National Nuclear Security Administration (NNSA)

5%2A en Office of Test and Evaluation http:nnsa.energy.govaboutusourprogramsdefenseprogramsstockpilestewardshiptestcapabilitiesand-eval

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Economic Evaluation of Radiopharmaceutical  

E-Print Network [OSTI]

97-2 Planning Report Economic Evaluation of Radiopharmaceutical Research at NIST U.S Department Radiation Division Physics Laboratory National Institute of Standards and Technology #12;Economic Evaluation of Standards and Technology by Albert N. Link Professor of Economics University of North Carolina at Greensboro

362

ASI Supplier Evaluation Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

5 Vendor Evaluation Record 11_0203 1 of 4 5 Vendor Evaluation Record 11_0203 1 of 4 EOTA - Business Form Document Title: Vendor Evaluation Record Document Number: ADMF-015 Rev. 11_0203 Document Owner: Elizabeth Sousa Backup Owner: Melissa Otero Approver(s): Melissa Otero Parent Document: ADMP-002, Vendor Selection and Management Process Notify of Changes: EOTA Employees Referenced Document(s): N/A ADMF-015 Vendor Evaluation Record 11_0203 2 of 4 Revision History: Rev. Description of Change A Initial Release 08_1016 Added section for vendors that will not be used due to non-conformance of material delivered. 08_1110 Removed section for vendors that will not be used due to non-conformance of material delivered. Do Not Use section will be placed on ADMF-016, Vendor List.

363

Evaluation of masa texture  

E-Print Network [OSTI]

Two objective methods to determine texture of corn masa using the TA.XT2 texture analyzer were developed and compared with subjective evaluations of the texture and machinability of corn masas from nixtarnalized corn flours used for tortillas...

Bosiger, Irene

1997-01-01T23:59:59.000Z

364

Validation of Laser Shearography Testing for Fixed Foam Insulation Bonds  

Science Journals Connector (OSTI)

Electronic Laser Shearography is a relatively new Nondestructive Evaluation (NDE) technique that is used with excitation methods to measure differential displacements and subsequent strains at the surface of a ma...

J. E. Engel; D. D. Burleigh

1990-01-01T23:59:59.000Z

365

Ultrasonic Maximum Aperture Saft Imaging  

Science Journals Connector (OSTI)

The focused transducer combined with C-scan imaging is currently the workhorse of ultrasonic nondestructive evaluation (NDE) [1]. Its strength lies in its simplicity and high quality images. There is room for imp...

P. J. Howard; R. Y. Chiao

1995-01-01T23:59:59.000Z

366

SEP/ARRA Evaluation Webinar  

Energy Savers [EERE]

Requirement for Evaluation 1. States are strongly encouraged, although not required, to conduct evaluations of their SEPARRA programs. 2. It is recommended that state...

367

Soil washing technology evaluation  

SciTech Connect (OSTI)

Environmental Restoration Engineering (ERE) continues to review innovative, efficient, and cost effective technologies for SRS soil and/or groundwater remediation. As part of this effort, this technical evaluation provides review and the latest information on the technology for SRS soil remediation. Additional technology evaluation reports will be issued periodically to update these reports. The purpose of this report is to review the soil washing technology and its potential application to SRS soil remediation. To assess whether the Soil Washing technology is a viable option for SRS soil remediation, it is necessary to review the technology/process, technology advantages/limitations, performance, applications, and cost analysis.

Suer, A.

1995-04-01T23:59:59.000Z

368

Exercise Evaluation Forms  

Broader source: Energy.gov (indexed) [DOE]

Hazardous Materials Hazardous Materials Exercise Evaluation Forms Prepared for the Department of Energy Office of Transportation and Emergency Management 02B00215-09.p65 This page intentionally left blank table of contents Transportation Emergency Preparedness Program (TEPP) planning tools planning tools Hazar Hazar Hazar Hazar Hazardous Materials dous Materials dous Materials dous Materials dous Materials Ex Ex Ex Ex Exer er er er ercise Ev cise Ev cise Ev cise Ev cise Evaluation Forms aluation Forms aluation Forms aluation Forms aluation Forms Objective 1: Initial Notification of Response Agencies and Response Personnel ........................................................ 3 Objective 2: Direction and Control .............................................................. 5 Objective 3: Incident Assessment ................................................................ 6

369

Rainwater Harvesting Program Evaluation  

E-Print Network [OSTI]

Rainwater Harvesting Program Evaluation Your views on the quality and effectiveness of Extension and collect rainwater and divert to landscape areas that need extra water Install a rainwater harvesting system Install a rainwater harvesting system to water landscape Install a rainwater harvesting system

370

Figure 1. Time-of-Flight (TOF) versus light output (L) of CsI:Tl to He+  

E-Print Network [OSTI]

as the difference in curvature and dispersive of the data. EMSL Research and Capability Development Proposals applications in the field of astronomy, medical physics, high-energy nuclear physics, non-destructive evaluation, non-proliferation, and national security. Stringent requirements involving nuclear proliferation

371

Limited Angle Tomography of Sparse Images from Noisy Data using TLS MUSIC Algorithm  

E-Print Network [OSTI]

1 Limited Angle Tomography of Sparse Images from Noisy Data using TLS MUSIC Algorithm Andrew E The limited angle tomography problem is to recon- struct an image x(y, z) from its projections p(t, ) p-shaped region. This has applications to med- ical imaging and non-destructive evaluation where projection data

Yagle, Andrew E.

372

Application of 2-dimensional analytic signals with single-quadrant spectra for processing of SAFT-reconstructed images  

Science Journals Connector (OSTI)

The Synthetic Aperture Focusing Technique (SAFT) is an algorithm applied in non-destructive ultrasonic testing which provides an image of flaws within a specimen. The image is reconstructed from A-scans measured at different positions. Reliable evaluation ... Keywords: Analytic signal, Complex signal, Image processing, SAFT image

Christian Höhne; Rainer Boehm; Jens Prager

2014-10-01T23:59:59.000Z

373

Automation of Feynman Diagram Evaluation  

E-Print Network [OSTI]

A C-program DIANA (DIagram ANAlyser) for the automation of Feynman diagram evaluations is presented.

M. Tentyukov; J. Fleischer

1998-02-04T23:59:59.000Z

374

Geothermal Electricity Technology Evaluation Model | Department...  

Energy Savers [EERE]

Geothermal Electricity Technology Evaluation Model Geothermal Electricity Technology Evaluation Model The Geothermal Electricity Technology Evaluation Model (GETEM) aids the...

375

ASEDRA Evaluation Final Report.  

SciTech Connect (OSTI)

The performance of the Advanced Synthetically Enhanced Detector Resolution Algorithm (ASEDRA) was evaluated by performing a blind test of 29 sets of gamma-ray spectra that were provided by DNDO. ASEDRA is a post-processing algorithm developed at the Florida Institute of Nuclear Detection and Security at the University of Florida (UF/FINDS) that extracts char-acteristic peaks in gamma-ray spectra. The QuickID algorithm, also developed at UF/FINDS, was then used to identify nuclides based on the characteristic peaks generated by ASEDRA that are inferred from the spectra. The ASEDRA/QuickID analysis results were evaluated with respect to the performance of the DHSIsotopeID algorithm, which is a mature analysis tool that is part of the Gamma Detector Response and Analysis Software (GADRAS). Data that were used for the blind test were intended to be challenging, and the radiation sources included thick shields around the radioactive materials as well as cargo containing naturally occurring radio-active materials, which masked emission from special nuclear materials and industrial isotopes. Evaluation of the analysis results with respect to the ground truth information (which was provided after the analyses were finalized) showed that neither ASEDRA/QuickID nor GADRAS could identify all of the radiation sources correctly. Overall, the purpose of this effort was primarily to evaluate ASEDRA, and GADRAS was used as a standard against which ASEDRA was compared. Although GADRAS was somewhat more accurate on average, the performance of ASEDRA exceeded that of GADRAS for some of the unknowns. The fact that GADRAS also failed to identify many of the radiation sources attests to the difficulty of analyzing the blind-test data that were used as a basis for the evaluation. This evaluation identified strengths and weaknesses of the two analysis approaches. The importance of good calibration data was also clear because the performance of both analysis methods was impeded by the inability to define the energy calibration accurately. Acronyms ACHIP adaptive chi-processed ASEDRA Advanced Synthetically Enhanced Detector Resolution Algorithm DNDO Domestic Nuclear Detection Office DRFs Detector Response Functions FINDS Florida Institute of Nuclear Detection and Security FWHM full-width half-maximum GADRAS Gamma Detector Response Analysis Software GUI graphical user interface HEU highly enriched uranium HPGe high purity germanium ID identification NaI Sodium iodide NNSA National Nuclear Security Administration NORM Naturally Occurring Radioactive Materials ppm parts per million SNL Sandia National Laboratories UF University of Florida WGPu weapons-grade plutonium

Mitchell, Dean James; Detwiler, Dr. Rebecca; Sjoden, Dr, Glenn E.

2008-09-01T23:59:59.000Z

376

Facilities evaluation report  

SciTech Connect (OSTI)

The Buried Waste Integrated Demonstration (BWID) is a program of the Department of Energy (DOE) Office of Technology Development whose mission is to evaluate different new and existing technologies and determine how well they address DOE community waste remediation problems. Twenty-three Technical Task Plans (TTPs) have been identified to support this mission during FY-92; 10 of these have identified some support requirements when demonstrations take place. Section 1 of this report describes the tasks supported by BWID, determines if a technical demonstration is proposed, and if so, identifies the support requirements requested by the TTP Principal Investigators. Section 2 of this report is an evaluation identifying facility characteristics of existing Idaho National Engineering Laboratory (INEL) facilities that may be considered for use in BWID technology demonstration activities.

Sloan, P.A.; Edinborough, C.R.

1992-04-01T23:59:59.000Z

377

Evaluating Transformer Losses  

E-Print Network [OSTI]

and replacing them with low loss units. Today few industrials evaluate losses on either power or distribution transformers. TRANSFORMER LOSSES Transformer losses are divided 'nto load losses and no-load losses. Load losses are due to the winding resista... therefore are a function of the load squared. No-load losses occur from energizing the transformer steel and fore are continuous regardless of the transformer load. TRANSFORMER DESIGN Both types of losses are a fun ce here ion of design. If losses...

Grun, R. L. Jr.

378

CIMplementation™: Evaluating Manufacturing Automation  

E-Print Network [OSTI]

in the manufacturing organization if CIMplementation~* is to succeed. 1.0 INTRODUCTION There is much discussion today about Com puter Integrated Manufacturing (CIM). Automation tools like Computer Aided Design (CAD) systems, robots, automated material handling...~ Pressing the frontier of technology in one's own manufactur ing facility will not be without its pitfalls. Second, while automation engineers may be able to piece together the technological pieces of a CIM system, they cannot and do not evaluate...

Krakauer, J.

379

Provenance Store Evaluation  

SciTech Connect (OSTI)

Requirements for the provenance store and access API are developed. Existing RDF stores and APIs are evaluated against the requirements and performance benchmarks. The team’s conclusion is to use MySQL as a database backend, with a possible move to Oracle in the near-term future. Both Jena and Sesame’s APIs will be supported, but new code will use the Jena API

Paulson, Patrick R.; Gibson, Tara D.; Schuchardt, Karen L.; Stephan, Eric G.

2008-03-01T23:59:59.000Z

380

Field Evaluation of Windows  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Evaluation of Windows Evaluation of Windows Last Updated: 10/20/2009 Various tools can be used to evaluate windows in the field. Unless a new window still has the NFRC label attached to it, it is nearly impossible to determine by sight what the thermal and optical performance of a window is. These tools can provide information, such as low-e coating, gap width and gas fill, that can be used to approximate the performance of a window. Solar gain and Low-e detector This device can be used to determine if a low-e coating is present in the window, what type of coating it is, and where it is located. The type of low-e coating will indicate the amount of solar gain that is admitted through the coating. Readings can be "low", "medium" or "high". The device will also indicate on which glass surface the low-e coating is in relation to the position of the device. Limitations: Only works on glass of 1/8" (3 mm) or thinner. Cost: around $350 from EDTM.com

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Energy-efficient buildings program evaluations. Volume 2: Evaluation summaries  

SciTech Connect (OSTI)

This document presents summaries of code and utility building program evaluations reviewed as the basis for the information presented in Energy-Efficient Buildings Program Evaluations, Volume 1: Findings and Recommendations, DOE/EE/OBT-11569, Vol. 1. The main purpose of this volume is to summarize information from prior evaluations of similar programs that may be useful background for designing and conducting an evaluation of the BSGP. Another purpose is to summarize an extensive set of relevant evaluations and provide a resource for program designers, mangers, and evaluators.

Lee, A.D.; Mayi, D.; Edgemon, S.D.

1997-04-01T23:59:59.000Z

382

Nondestructive Examination of Possible PWSCC in Control Rod Drive Mechanism Housings  

SciTech Connect (OSTI)

Studies being conducted at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington are focused on assessing the effectiveness of nondestructive examination (NDE) techniques for inspecting control rod drive mechanism (CRDM) nozzles and J-groove weldments. The primary objective of this work is to provide information to the United States Nuclear Regulatory Commission (US NRC) on the effectiveness of NDE methods as related to the in-service inspection of CRDM nozzles and J-groove weldments, and to enhance the knowledge base of primary water stress corrosion cracking (PWSCC) through destructive characterization of the CRDM assemblies. In describing two CRDM assemblies removed from service, decontaminated, and then used in a series of NDE measurements, this paper will address the following questions: 1) What did each technique detect? 2) What did each technique miss? and 3) How accurately did each technique characterize the detected flaws? Two CRDM assemblies including the CRDM nozzle, the J-groove weld, buttering, and a portion of the ferritic head material were selected for this study. One contained suspected PWSCC, based on in-service inspection data and through-wall leakage; the other contained evidence suggesting through-wall leakage, but this was unconfirmed. The selected NDE measurements follow standard industry techniques for conducting in-service inspections of CRDM nozzles and the crown of the J-groove welds and buttering. In addition, laboratory based NDE methods were employed to conduct inspections of the CRDM assemblies, with particular emphasis on inspecting the J-groove weld and buttering. This paper will also describe the NDE methods used and discuss the NDE results. Future work will involve using the results from these NDE studies to guide the development of a destructive characterization plan to reveal the crack morphology and a comparison of the degradation found by the destructive evaluation with the recorded NDE responses.

Doctor, Steven R.; Cumblidge, Stephen E.; Schuster, George J.; Harris, Rob V.; Crawford, Susan L.

2007-01-01T23:59:59.000Z

383

ORISE: Process and Program Evaluation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Process and Program Evaluation Process and Program Evaluation As an integral part of producing effective health and safety programs, the Oak Ridge Institute for Science and Education (ORISE) conducts scientific-based process and program evaluation to provide government agencies and organizations with the tools to improve the health of workers and the general public. Whether the goal is to change awareness, attitudes, beliefs, behaviors, policies or systems, ORISE helps determine the right evaluation methods based on specific needs and resources, including: Formative evaluations to assess the problem, target audience needs and guide successful process implementation Assessments to identify unmet needs in programs, organizations or communities Audience evaluations to learn about targeted populations

384

Through-Container Measurements of Acoustic Signatures for Classification/Discrimination of Liquid Explosives (LEs) and Precursor Threat Liquids  

SciTech Connect (OSTI)

This Manuscript is for submission to the SPIE Smart Structures/NDE Symposium, the internationally recognized forum for reporting state-of-the-art research and development in smart structures, smart materials, nondestructive evaluation, and health monitoring. Specifically, this paper is being presented in the NDE Symposium in a Conference entitled, "Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security II", in San Diego, Ca., March 9-13, 2008.

Diaz, Aaron A.; Samuel, Todd J.; Tucker, Brian J.; Cinson, Anthony D.; Valencia, Juan D.; Gervais, Kevin L.; Thompson, Jason S.

2008-04-01T23:59:59.000Z

385

Enhancing Acoustic Signal Quality by Rapidly Switching between Pulse-Echo and Through Transmission using Diplexers  

SciTech Connect (OSTI)

This presentation is for submission to the SPIE Smart Structures/NDE Symposium, the internationally recognized forum for reporting state-of-the-art research and development in smart structures, smart materials, nondestructive evaluation, and health monitoring. Specifically, this paper is being presented in the NDE Symposia in a Conference entitled, "Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security II", in San Diego, CA., March 9-13, 2008.

Valencia, Juan D.; Diaz, Aaron A.; Tucker, Brian J.

2008-04-01T23:59:59.000Z

386

Renewable Energy Evaluation Tools  

Broader source: Energy.gov (indexed) [DOE]

RENEWABLE ENERGY RENEWABLE ENERGY EVALUATION TOOLS Andy Walker, PhD PE Principal Engineer, NREL Renewable Energy Round Table May 2, 2012 2 TECHNICAL ASSESSMENT AND SCREENING TOOLS WE USE IN OUR PROJECTS Campus/Base Assessments INFRASTRUCTURE BUILDINGS ASSESSMENT RENEWABLE SUPPLY SIDE VEHICLES & TOOLS Campus/Base Assessments INFRASTRUCTURE BUILDINGS ASSESSMENT RENEWABLE SUPPLY SIDE VEHICLES & TOOLS 9 9 Renewable Energy Technologies Photovoltaics Daylighting Biomass Heat/Power Concentrating Solar Heat/Power Solar Vent Air Preheat Solar Water Heating Wind Power Ground Source Heat Pump Landfill Gas 10 10 Renewable Energy Resources Geographical Information System (GIS) Datasets * NREL Datasets (http://www.nrel.gov/gis/) - solar radiation 10x10 km grid

387

Evaluating Steam Trap Performance  

E-Print Network [OSTI]

~LmT " TRIf' 1 TRIf' 2 Figure 2 It has become common practice for engineers to oversize steam traps and place more emphasis on first cost than on maintenance cost and operating 766 3 4 ESL-IE-86-06-126 Proceedings from the Eighth Annual Industrial...EVALUATING STEAM TRAP PERFORMANCE Noel Y Fuller, P.E. Holston Defense Corporation Kingsport, Tennessee ABSTRACT Laboratory tests were conducted on several types of steam traps at Holston Defense Corporation in Kingsport, Tennessee. Data...

Fuller, N. Y.

388

LIQUEFACTION EVALUATIONS AT DOE SITES  

Broader source: Energy.gov [DOE]

Liquefaction Evaluations at DOE Sites M. Lewis, M. McHood, R. Williams, B. Gutierrez October 25, 2011

389

Exercise Controller and Evaluator Manual  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

This volume details the roles of controllers and evaluators in emergency exercises. Canceled by DOE G 151.1-3.

1997-08-21T23:59:59.000Z

390

Studies on intrinsic summary evaluation  

Science Journals Connector (OSTI)

Summary evaluation has gained importance in the research community and seems to be a quite challenging task. Most of the work till date focus on summary generation, while this paper focus on intrinsic summary evaluation. Studies made for preparing the ... Keywords: effectiveness, extraction, inter judge agreement, intrinsic summary evaluation, precision, rank correlation, recall, summarisation, text summary, utility mechanisms

Shanmugasundaram Hariharan; Rengaramanujam Srinivasan

2010-04-01T23:59:59.000Z

391

Evaluation Report: IG-0776  

Broader source: Energy.gov (indexed) [DOE]

Department's Unclassified Department's Unclassified Cyber Security Program - 2007 DOE/IG-0776 September 2007 Department of Energy Washington, DC 20585 September 18, 2007 MEMOKANDLIM FOR THq SECRETARY . r FROM: , A F , ~ $ & M / ~ I Gregory riednian lnspcctor General SUBJECT: -- INFORMATIOH: Evaluation Report on "The Department's Unclassified Cyber Security Program - 2007" BACKGROUND The Department of Energy expects to spend about $300 million in Fiscal Year (FY) 2007 to protect its investment in information technology resources. These protective act~vities are critical to ensuring that systenis and data remain secure and available, especially in light of the increasingly sophisticated probes and attacks on Departmental infonnation technology resources. Experts note that successful attacks on Federal systems have

392

Evaluation Report: IG-0738  

Broader source: Energy.gov (indexed) [DOE]

U.S. Department of Energy Office of Inspector General Office of Audit Services The Department's Unclassified Cyber Security Program-2006 DOE/IG-0738 September 2006 Department of Energy Wash~ngton, DC 2 0 5 8 5 MEMORANDUM FOR FROM: lnspector General S1JBJ ECT: INFORMATlON: Evaluation Report on "The Department's Unclassified Cyber Security Program - 2006" BACKGROUND To help accomplish its strategic goals in the areas of defense, energy, science and the environment, the Department utilizes numerous interconnected computer networks and individual systems. Virtually all of the Department's systems are increasingly subjected to sophisticated attacks designed to circumvent security measures, trick unsuspecting users into divulging sensitive information or propagate harmful programs. A strong

393

Evaluated teletherapy source library  

DOE Patents [OSTI]

The Evaluated Teletherapy Source Library (ETSL) is a system of hardware and software that provides for maintenance of a library of useful phase space descriptions (PSDs) of teletherapy sources used in radiation therapy for cancer treatment. The PSDs are designed to be used by PEREGRINE, the all-particle Monte Carlo dose calculation system. ETSL also stores other relevant information such as monitor unit factors (MUFs) for use with the PSDs, results of PEREGRINE calculations using the PSDs, clinical calibration measurements, and geometry descriptions sufficient for calculational purposes. Not all of this information is directly needed by PEREGRINE. It also is capable of acting as a repository for the Monte Carlo simulation history files from which the generic PSDs are derived.

Cox, Lawrence J. (Los Alamos, NM); Schach Von Wittenau, Alexis E. (Livermore, CA)

2000-01-01T23:59:59.000Z

394

Evaluating prediction uncertainty  

SciTech Connect (OSTI)

The probability distribution of a model prediction is presented as a proper basis for evaluating the uncertainty in a model prediction that arises from uncertainty in input values. Determination of important model inputs and subsets of inputs is made through comparison of the prediction distribution with conditional prediction probability distributions. Replicated Latin hypercube sampling and variance ratios are used in estimation of the distributions and in construction of importance indicators. The assumption of a linear relation between model output and inputs is not necessary for the indicators to be effective. A sequential methodology which includes an independent validation step is applied in two analysis applications to select subsets of input variables which are the dominant causes of uncertainty in the model predictions. Comparison with results from methods which assume linearity shows how those methods may fail. Finally, suggestions for treating structural uncertainty for submodels are presented.

McKay, M.D. [Los Alamos National Lab., NM (United States)

1995-03-01T23:59:59.000Z

395

Standardized radiological dose evaluations  

SciTech Connect (OSTI)

Following the end of the Cold War, the mission of Rocky Flats Environmental Technology Site changed from production of nuclear weapons to cleanup. Authorization baseis documents for the facilities, primarily the Final Safety Analysis Reports, are being replaced with new ones in which accident scenarios are sorted into coarse bins of consequence and frequency, similar to the approach of DOE-STD-3011-94. Because this binning does not require high precision, a standardized approach for radiological dose evaluations is taken for all the facilities at the site. This is done through a standard calculation ``template`` for use by all safety analysts preparing the new documents. This report describes this template and its use.

Peterson, V.L.; Stahlnecker, E.

1996-05-01T23:59:59.000Z

396

E-Print Network 3.0 - advanced nondestructive examination Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

non-destructive technique it is now possible to accurately and non-destructively Source: Smith, Tanya M. - Department of Human Evolutionary Biology, Harvard University Collection:...

397

Recommendation 212: Evaluate additional storage and disposal...  

Office of Environmental Management (EM)

212: Evaluate additional storage and disposal options Recommendation 212: Evaluate additional storage and disposal options The ORSSAB encourages DOE to evaluate additional storage...

398

Independent Oversight Evaluation, Office of Secure Transportation...  

Office of Environmental Management (EM)

Evaluation, Office of Secure Transportation - February 2004 Independent Oversight Evaluation, Office of Secure Transportation - February 2004 February 2004 Evaluation of the Office...

399

Advanced Vehicle Testing & Evaluation | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Vehicle Testing & Evaluation Advanced Vehicle Testing & Evaluation 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation...

400

Advanced Vehicle Testing & Evaluation | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

& Evaluation Advanced Vehicle Testing & Evaluation 2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting...

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Composite Load Model Evaluation  

SciTech Connect (OSTI)

The WECC load modeling task force has dedicated its effort in the past few years to develop a composite load model that can represent behaviors of different end-user components. The modeling structure of the composite load model is recommended by the WECC load modeling task force. GE Energy has implemented this composite load model with a new function CMPLDW in its power system simulation software package, PSLF. For the last several years, Bonneville Power Administration (BPA) has taken the lead and collaborated with GE Energy to develop the new composite load model. Pacific Northwest National Laboratory (PNNL) and BPA joint force and conducted the evaluation of the CMPLDW and test its parameter settings to make sure that: • the model initializes properly, • all the parameter settings are functioning, and • the simulation results are as expected. The PNNL effort focused on testing the CMPLDW in a 4-bus system. An exhaustive testing on each parameter setting has been performed to guarantee each setting works. This report is a summary of the PNNL testing results and conclusions.

Lu, Ning; Qiao, Hong (Amy)

2007-09-30T23:59:59.000Z

402

Annual Energy Outlook Forecast Evaluation  

Gasoline and Diesel Fuel Update (EIA)

Annual Energy Outlook Forecast Evaluation Annual Energy Outlook Forecast Evaluation Annual Energy Outlook Forecast Evaluation by Susan H. Holte In this paper, the Office of Integrated Analysis and Forecasting (OIAF) of the Energy Information Administration (EIA) evaluates the projections published in the Annual Energy Outlook (AEO), (1) by comparing the projections from the Annual Energy Outlook 1982 through the Annual Energy Outlook 2001 with actual historical values. A set of major consumption, production, net import, price, economic, and carbon dioxide emissions variables are included in the evaluation, updating similar papers from previous years. These evaluations also present the reasons and rationales for significant differences. The Office of Integrated Analysis and Forecasting has been providing an

403

Evaluate Greenhouse Gas Emissions Profile  

Broader source: Energy.gov [DOE]

Evaluating a Federal agency's greenhouse gas (GHG) emissions profile means getting a solid understanding of the organization's largest emission categories, largest emission sources, and its potential for improvement.

404

Risk Evaluation and Reduction | Department of Energy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Coordination Office Risk Evaluation and Reduction Risk Evaluation and Reduction The Project Management Coordination Office (PMCO) coordinates risk management activities...

405

Carbon Nanotubes Based Nanoelectrode Arrays: Fabrication, Evaluation...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Arrays: Fabrication, Evaluation and Application in Voltammetric Analysis. Carbon Nanotubes Based Nanoelectrode Arrays: Fabrication, Evaluation and Application in Voltammetric...

406

Independent Oversight Focused Safety Management Evaluation, Idaho...  

Energy Savers [EERE]

Focused Safety Management Evaluation, Idaho National Engineering and Environmental Laboratory - January 2001 Independent Oversight Focused Safety Management Evaluation, Idaho...

407

Geothermal Electricity Technology Evaluation Model (GETEM) Development...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Electricity Technology Evaluation Model (GETEM) Development Geothermal Electricity Technology Evaluation Model (GETEM) Development Project objective: Provide a tool for estimating...

408

7 - Cost-Efficiency Evaluation  

Science Journals Connector (OSTI)

The purpose of cost-efficiency evaluations is to make the connection between cost and outcomes. Using methods like cost-benefit analysis and cost-effective analysis, this allows evaluators to provide the most complete information. The information may be used to make better decisions about implementation or continuing a program.

Gennaro F. Vito; George E. Higgins

2015-01-01T23:59:59.000Z

409

CARBON NANOTUBE TRANSISTORS: AN EVALUATION  

E-Print Network [OSTI]

CARBON NANOTUBE TRANSISTORS: AN EVALUATION L.C. Castro, D.L. John, and D.L. Pulfrey Department A simple, non-equilibrium model is used to evaluate the likely DC performance of carbon nanotube field and transcon- ductance close to the low-quantum-capacitance limit. Keywords: Carbon nanotubes, field

Pulfrey, David L.

410

Status of fission yield evaluations  

SciTech Connect (OSTI)

Very few yield compilations are also evaluations, and very few contain an extensive global library of measured data and extensive models for unmeasured data. The earlier U.K. evaluations and US evaluations were comparable up to the retirements of the primary evaluators. Only the effort in the US has been continued and expanded. The previous U.K. evaluations have been published. In this paper we summarize the current status of the US evaluation, philosophy, and various integral yield tests for 34 fissioning nuclides at one or more neutron incident energies and/or for spontaneous fission. Currently there are 50 yield sets and for each we have independent and cumulative yields and uncertainties for approximately 1100 fission products. When finalized, the recommended data will become part of the next version of the US Evaluated Nuclear Data File (ENDF/B-VI). The complete set of data, including the basic input of measured yields, will be issued as a sequel to the General Electric evaluation reports (better known by the authors' names: Rider - or earlier - Meek and Rider). 16 references.

England, T.R.; Rider, B.F.

1983-01-01T23:59:59.000Z

411

Training Evaluations | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Evaluations Evaluations Training Evaluations The Office of Learning and Workforce Development (HC-20) is working to find ways to measure the effectiveness and efficiency of our training solutions. This effort is to ensure that DOE is in compliance with 2009 OPM regulations, which require that agencies evaluate their training programs annually to determine their effectiveness (5 CFR 410.202). Our goal is to demonstrate the contribution of training to agency mission effectiveness, increase partnership with our key stakeholders and show clear connections between effective funding usage and agency outcomes. In order to accomplish this we have created a comprehensive strategy and standards for evaluating training that will demonstrate alignment between the learning experience

412

Annual Energy Outlook Forecast Evaluation  

Gasoline and Diesel Fuel Update (EIA)

Title of Paper Annual Energy Outlook Forecast Evaluation Title of Paper Annual Energy Outlook Forecast Evaluation by Susan H. Holte OIAF has been providing an evaluation of the forecasts in the Annual Energy Outlook (AEO) annually since 1996. Each year, the forecast evaluation expands on that of the prior year by adding the most recent AEO and the most recent historical year of data. However, the underlying reasons for deviations between the projections and realized history tend to be the same from one evaluation to the next. The most significant conclusions are: Natural gas has generally been the fuel with the least accurate forecasts of consumption, production, and prices. Natural gas was the last fossil fuel to be deregulated following the strong regulation of energy markets in the 1970s and early 1980s. Even after deregulation, the behavior

413

Nuclear models relevant to evaluation  

SciTech Connect (OSTI)

The widespread use of nuclear models continues in the creation of data evaluations. The reasons include extension of data evaluations to higher energies, creation of data libraries for isotopic components of natural materials, and production of evaluations for radiative target species. In these cases, experimental data are often sparse or nonexistent. As this trend continues, the nuclear models employed in evaluation work move towards more microscopically-based theoretical methods, prompted in part by the availability of increasingly powerful computational resources. Advances in nuclear models applicable to evaluation will be reviewed. These include advances in optical model theory, microscopic and phenomenological state and level density theory, unified models that consistently describe both equilibrium and nonequilibrium reaction mechanism, and improved methodologies for calculation of prompt radiation from fission. 84 refs., 8 figs.

Arthur, E.D.; Chadwick, M.B.; Hale, G.M.; Young, P.G.

1991-01-01T23:59:59.000Z

414

Annual Energy Outlook Forecast Evaluation - Table 1. Forecast Evaluations:  

Gasoline and Diesel Fuel Update (EIA)

Average Absolute Percent Errors from AEO Forecast Evaluations: Average Absolute Percent Errors from AEO Forecast Evaluations: 1996 to 2000 Average Absolute Percent Error Average Absolute Percent Error Average Absolute Percent Error Average Absolute Percent Error Average Absolute Percent Error Variable 1996 Evaluation: AEO82 to AEO93 1997 Evaluation: AEO82 to AEO97 1998 Evaluation: AEO82 to AEO98 1999 Evaluation: AEO82 to AEO99 2000 Evaluation: AEO82 to AEO2000 Consumption Total Energy Consumption 1.8 1.6 1.7 1.7 1.8 Total Petroleum Consumption 3.2 2.8 2.9 2.8 2.9 Total Natural Gas Consumption 6.0 5.8 5.7 5.6 5.6 Total Coal Consumption 2.9 2.7 3.0 3.2 3.3 Total Electricity Sales 1.8 1.6 1.7 1.8 2.0 Production Crude Oil Production 5.1 4.2 4.3 4.5 4.5

415

Building Reliable Software Applied Formal Methods  

E-Print Network [OSTI]

and return how much money is left. */ public int debit(int amount) { if (amount NDE NDE(amount); if (balance ) { if (amount NDE(amount); if (balance

Zimmerman, Daniel M.

416

AN ULTRASONIC PHASED ARRAY EVALUATION OF INTERGRANULAR STRESS CORROSION CRACK (IGSCC) DETECTION IN AUSTENITIC STAINLESS STEEL PIPING WELDS  

SciTech Connect (OSTI)

Research is being conducted for the U.S. Nuclear Regulatory Commission at the Pacific Northwest National Laboratory to assess the effectiveness and reliability of advanced nondestructive examination (NDE) methods for the inspection of light water reactor (LWR) components and challenging material/component configurations. This study assessed the effectiveness of far-side inspections on wrought stainless steel piping with austenitic welds, as found in thin-walled, boiling water reactor (BWR) component configurations, for the detection and characterization of intergranular stress corrosion cracks (IGSCC).

Diaz, Aaron A.; Anderson, Michael T.; Cinson, Anthony D.; Crawford, Susan L.; Cumblidge, Stephen E.

2010-07-22T23:59:59.000Z

417

ORNL Weatherization Program Evaluation | Open Energy Information  

Open Energy Info (EERE)

ORNL Weatherization Program Evaluation ORNL Weatherization Program Evaluation (Redirected from Weatherization Program Evaluation) Jump to: navigation, search Tool Summary Name: Weatherization Program Evaluation Agency/Company /Organization: Oak Ridge National Laboratory Sector: Energy Focus Area: Buildings Topics: Policies/deployment programs Website: weatherization.ornl.gov/WeatherizationProgramEvaluations.htm References: Weatherization Program Evaluation [1] Logo: Weatherization Program Evaluation Oak Ridge National Laboratory provides weatherization program evaluations as part of the U.S. Department of Energy's Weatherization Assistance Program. This evaluation program is also available to international organizations. This article is a stub. You can help OpenEI by expanding it. Oak Ridge National Laboratory provides weatherization program evaluations

418

Petrophysical evaluation of subterranean formations  

DOE Patents [OSTI]

Methods and systems are provided for evaluating petrophysical properties of subterranean formations and comprehensively evaluating hydrate presence through a combination of computer-implemented log modeling and analysis. Certain embodiments include the steps of running a number of logging tools in a wellbore to obtain a variety of wellbore data and logs, and evaluating and modeling the log data to ascertain various petrophysical properties. Examples of suitable logging techniques that may be used in combination with the present invention include, but are not limited to, sonic logs, electrical resistivity logs, gamma ray logs, neutron porosity logs, density logs, NRM logs, or any combination or subset thereof.

Klein, James D; Schoderbek, David A; Mailloux, Jason M

2013-05-28T23:59:59.000Z

419

Liquefaction Evaluations at DOE Sites  

Broader source: Energy.gov (indexed) [DOE]

LIQUEFACTION EVALUATIONS AT LIQUEFACTION EVALUATIONS AT DOE SITES M. Lewis, M. McHood, R. Williams, B. Gutierrez October 25, 2011 Agenda  Background  Purpose and Objective  Liquefaction Methods  Site Evaluations  Aging  Conclusions 2 Background 3 Liquefaction at DOE Sites Background  Liquefaction evaluations are required at all DOE sites  Methods have evolved over the years, but there is currently only one consensus methodology;  Youd et al., 2001  Two other methods have emerged in the last few years;  Cetin et al., 2004  Idriss & Boulanger, 2008 4 Background  Youd et al., was the result of two workshops (NCEER/NSF) held in the late 1990s, culminating in a NCEER report and a ASCE publication in 2001. The method is widely used.  Cetin et al., was the result of several doctoral

420

Open Government Plan Self Evaluation  

Broader source: Energy.gov (indexed) [DOE]

Government Plan Self Evaluation Government Plan Self Evaluation Page 1 of 3 NAME OF AGENCY: Department of Energy NAME OF EVALUATOR: TheAnne Gordon DIRECTIONS The enclosed list of 30 criteria is drawn directly from the text of the Open Government Directive. Please return this form to the White House Open Government team at opengov@ostp.gov by 5 pm on Friday, April 23 rd . To complete the self- evaluation form, please indicate a response to each of the criteria as follows: Red (R) - plan does not satisfy the requirement Yellow (Y) - plan partially satisfies the requirement Green (G) - plan fully satisfies the requirement N/A - not applicable because agency does not engage in that activity or area Please include any explanatory comments on the last page. Optional: If you wish, please provide the page range for the relevant section of the plan that is the basis for your

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Engineering Evaluation/Cost Analysis  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

DOEPPPO03-0145&D2 Engineering EvaluationCost Analysis for Group 1 Buildings X-103, X-334, and X-344B at the Portsmouth Gaseous Diffusion Plant, Piketon, Ohio This document has...

422

Nuclear Explosive Safety Evaluation Processes  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

This Manual provides supplemental details to support the nuclear explosive safety evaluation requirement of DOE O 452.2D, Nuclear Explosive Safety. Does not cancel other directives. Admin Chg 1, 7-10-13.

2009-04-14T23:59:59.000Z

423

Evaluate Greenhouse Gas Reduction Strategies  

Broader source: Energy.gov [DOE]

For each major emission source identified in the previous step to evaluate greenhouse gas (GHG) emission profile, Federal agencies should review possible strategies for reducing GHG emissions and determine what assets may benefit from each strategy.

424

Performance Evaluation and Measurement Plan  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Support Contract FY15 Performance Evaluation and Measurement Plan Printed on: December 30, 2014 Mission Support Contract Section J - November 2014 Contract No. DE-AC06-09RL14728...

425

EVALUATION FORM (Internal Libraries Document)  

E-Print Network [OSTI]

EVALUATION FORM (Internal Libraries Document) FACULTY MEMBER COMPLETES TOP Date: Rank/Title: Name, Research and Service, respectively for tenure track; 70%-10%-20% for non-tenure track) has been in effect

Stowell, Michael

426

PAE Evaluation Portfolio Peer Review  

Office of Energy Efficiency and Renewable Energy (EERE)

This is a report from the Peer Review Panel on activities within the Planning, Analysis and Evaluation Unit of the Office of Planning, Budget and Analysis, Office of Energy Efficiency and Renewable Energy, U.S. Department of Energy.

427

Multiple hypothesis evaluation in auditing  

E-Print Network [OSTI]

In many audit tasks, auditors evaluate multiple hypotheses to diagnose the situation. Research suggests this is a complex task that individuals have difficulty performing. Further, there is little guidance in professional ...

Srivastava, Rajendra P.; Wright, Arnold; Mock, Theodore J.

2002-11-01T23:59:59.000Z

428

Damage assessment in composite plates using fractional wavelet transform of modal shapes with optimized selection of spatial wavelets  

Science Journals Connector (OSTI)

Damage assessment is one of the crucial topics in the operation of structural elements made of polymers and polymeric composites. From the wide range of diagnostic methods and techniques the vibration-based damage evaluation seems to be effective, useful ... Keywords: Composite materials, Fractional wavelet transform, Heuristic optimization algorithms, Non-destructive damage evaluation, Single and multi-objective optimization, Vibration-based damage assessment

Andrzej Katunin, Piotr Przysta?ka

2014-04-01T23:59:59.000Z

429

Annual Energy Outlook Forecast Evaluation  

Gasoline and Diesel Fuel Update (EIA)

Evaluation Evaluation Annual Energy Outlook Forecast Evaluation by Esmeralda Sanchez The Office of Integrated Analysis and Forecasting has been providing an evaluation of the forecasts in the Annual Energy Outlook (AEO) annually since 1996. Each year, the forecast evaluation expands on that of the prior year by adding the most recent AEO and the most recent historical year of data. However, the underlying reasons for deviations between the projections and realized history tend to be the same from one evaluation to the next. The most significant conclusions are: Over the last two decades, there have been many significant changes in laws, policies, and regulations that could not have been anticipated and were not assumed in the projections prior to their implementation. Many of these actions have had significant impacts on energy supply, demand, and prices; however, the impacts were not incorporated in the AEO projections until their enactment or effective dates in accordance with EIA's requirement to remain policy neutral and include only current laws and regulations in the AEO reference case projections.

430

ORNL Weatherization Program Evaluation | Open Energy Information  

Open Energy Info (EERE)

ORNL Weatherization Program Evaluation ORNL Weatherization Program Evaluation Jump to: navigation, search Tool Summary Name: Weatherization Program Evaluation Agency/Company /Organization: Oak Ridge National Laboratory Sector: Energy Focus Area: Buildings Topics: Policies/deployment programs Website: weatherization.ornl.gov/WeatherizationProgramEvaluations.htm References: Weatherization Program Evaluation [1] Logo: Weatherization Program Evaluation Oak Ridge National Laboratory provides weatherization program evaluations as part of the U.S. Department of Energy's Weatherization Assistance Program. This evaluation program is also available to international organizations. This article is a stub. You can help OpenEI by expanding it. Oak Ridge National Laboratory provides weatherization program evaluations

431

Central Receiver Plant evaluation: (2) THEMIS collector subsystem evaluation  

SciTech Connect (OSTI)

This report is part of the evaluation work carried out at Ecole Centrale on central receiver plants. The THEMIS collector subsystem is evaluated with emphasis given to the energy performance problems. The collector subsystem, the heliostat, and the operation modes are described. The mechanisms which contribute to the energy losses of the collector subsystem are discussed individually. Heliostat availability, reflectivity, geometrical effects (mirror shadowing and blocking, cosine factor, tower shadowing), beam focusing quality, beam pointing, spillage, propagation losses in the atmosphere between the mirrors and the receiver are successively evaluated. The overall collector efficiency is then estimated from two different points of view. The theoretical performance showing the physical limitation of the system, and the actual performance based on real experimental results, are separately discussed. The electricity consumption of the heliostat field is examined for plant parasitics analysis. The maintenance problems and the lessons learned on hardware behavior at the THEMIS site are also discussed. 19 refs., 7 figs.; 24 tabs.

Amri, A.; Izygon, M.; Tedjiza, B.

1988-01-01T23:59:59.000Z

432

NETL: Predictive Modeling and Evaluation - Evaluation of the Emission,  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Evaluation of the Emission, Transport, and Deposition of Mercury, Arsenic, and Fine Particulate Matter from Coal Based Power Plants in the Ohio River Valley Region Evaluation of the Emission, Transport, and Deposition of Mercury, Arsenic, and Fine Particulate Matter from Coal Based Power Plants in the Ohio River Valley Region Ohio University, in collaboration with CONSOL Energy, Advanced Technology Systems, Inc (ATS) and Atmospheric Environmental Research, Inc. (AER) as subcontractors will evaluate the impact of emissions from coal-fired power plants in the Ohio River Valley region as they relate to the transport and deposition of mercury, arsenic, and associated fine particulate matter. This evaluation will involve two interrelated areas of effort: regional-scale modeling analysis and ambient air monitoring. The scope of work for the modeling analysis will include (1) development of updated inventories of mercury and arsenic emissions from coal plants and other important sources in the modeled domain; (2) adapting an existing 3-D atmospheric chemical transport model to incorporate recent advancements in the understanding of mercury transformations in the atmosphere; (3) analyses of the flux of Hg0, RGM, arsenic, and fine particulate matter in the different sectors of the study region to identify key transport mechanisms; (4) comparison of cross correlations between species from the model results to observations in order to evaluate characteristics of specific air masses associated with long-range transport from a specified source region; and (5) evaluation of the sensitivity of these correlations to emissions from regions along the transport path. This will be accomplished by multiple model runs with emissions simulations switched on and off from the various source regions.

433

Global evaluation of biofuel potential from microalgae  

Science Journals Connector (OSTI)

...gas emission evaluation of biodiesel derived from microalgae...Species Program: Biodiesel from Algae ( National...Graph Image Process 28 ( 3...Appendix: Global Evaluation...gas emission evaluation of biodiesel derived...

Jeffrey W. Moody; Christopher M. McGinty; Jason C. Quinn

2014-01-01T23:59:59.000Z

434

Annual Energy Outlook Forecast Evaluation  

Gasoline and Diesel Fuel Update (EIA)

by by Esmeralda Sanchez The Office of Integrated Analysis and Forecasting has been providing an evaluation of the forecasts in the Annual Energy Outlook (AEO) annually since 1996. Each year, the forecast evaluation expands on that of the prior year by adding the most recent AEO and the most recent historical year of data. However, the underlying reasons for deviations between the projections and realized history tend to be the same from one evaluation to the next. The most significant conclusions are: * Over the last two decades, there have been many significant changes in laws, policies, and regulations that could not have been anticipated and were not assumed in the projections prior to their implementation. Many of these actions have had significant impacts on energy supply, demand, and prices; however, the

435

Annual Energy Outlook Forecast Evaluation  

Gasoline and Diesel Fuel Update (EIA)

by Esmeralda SĂĄnchez The Office of Integrated Analysis and Forecasting has produced an annual evaluation of the accuracy of the Annual Energy Outlook (AEO) since 1996. Each year, the forecast evaluation expands on the prior year by adding the projections from the most recent AEO and the most recent historical year of data. The Forecast Evaluation examines the accuracy of AEO forecasts dating back to AEO82 by calculating the average absolute forecast errors for each of the major variables for AEO82 through AEO2003. The average absolute forecast error, which for the purpose of this report will also be referred to simply as "average error" or "forecast error", is computed as the simple mean, or average, of all the absolute values of the percent errors,

436

Annual Energy Outlook Evaluation, 2005  

Gasoline and Diesel Fuel Update (EIA)

Outlook Evaluation, 2005 1 Outlook Evaluation, 2005 1 Annual Energy Outlook Evaluation, 2005 * Then Energy Information Administration (EIA) produces projections of energy supply and demand each year in the Annual Energy Outlook (AEO). The projections in the AEO are not statements of what will happen but of what might happen, given the assumptions and methodologies used. The projections are business-as-usual trend projections, given known technology, technological and demographic trends, and current laws and regulations. Thus, they provide a policy-neutral reference case that can be used to analyze policy initiatives. EIA does not propose or advocate future legislative and regulatory changes. All laws are assumed to remain as currently enacted; however, the impacts of emerging regulatory changes,

437

Covariance evaluation work at LANL  

SciTech Connect (OSTI)

Los Alamos evaluates covariances for nuclear data library, mainly for actinides above the resonance regions and light elements in the enUre energy range. We also develop techniques to evaluate the covariance data, like Bayesian and least-squares fitting methods, which are important to explore the uncertainty information on different types of physical quantities such as elastic scattering angular distribution, or prompt neutron fission spectra. This paper summarizes our current activities of the covariance evaluation work at LANL, including the actinide and light element data mainly for the criticality safety study and transmutation technology. The Bayesian method based on the Kalman filter technique, which combines uncertainties in the theoretical model and experimental data, is discussed.

Kawano, Toshihiko [Los Alamos National Laboratory; Talou, Patrick [Los Alamos National Laboratory; Young, Phillip [Los Alamos National Laboratory; Hale, Gerald [Los Alamos National Laboratory; Chadwick, M B [Los Alamos National Laboratory; Little, R C [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

438

Nuclear weapon reliability evaluation methodology  

SciTech Connect (OSTI)

This document provides an overview of those activities that are normally performed by Sandia National Laboratories to provide nuclear weapon reliability evaluations for the Department of Energy. These reliability evaluations are first provided as a prediction of the attainable stockpile reliability of a proposed weapon design. Stockpile reliability assessments are provided for each weapon type as the weapon is fielded and are continuously updated throughout the weapon stockpile life. The reliability predictions and assessments depend heavily on data from both laboratory simulation and actual flight tests. An important part of the methodology are the opportunities for review that occur throughout the entire process that assure a consistent approach and appropriate use of the data for reliability evaluation purposes.

Wright, D.L. [Sandia National Labs., Albuquerque, NM (United States)

1993-06-01T23:59:59.000Z

439

PAE Evaluation Portfolio Peer Review  

Broader source: Energy.gov (indexed) [DOE]

Report from the Peer Review Panel Report from the Peer Review Panel on activities within the Planning, Analysis and Evaluation Unit Office of Planning, Budget and Analysis Office of Energy Efficiency and Renewable Energy U.S. Department of Energy Team Members: Kathryn Newcomer, The George Washington University (Chair) Irwin Feller, The Pennsylvania State University (Retired) Stephanie Shipman, Government Accountability Office Kathleen Sedlak O'Brien, Environmental Protection Agency Faith Lambert, EERE Final Report February 1, 2008 1 EXECUTIVE SUMMARY The Office of Energy Efficiency and Renewable Energy (EERE) within the U.S. Department of Energy asked a panel of experts with relevant knowledge to review the evaluation activities of the Planning, Analysis and Evaluation Unit (PAE) within EERE's Office of Planning, Budget and

440

TEC Meeting Evaluations Summary -- Final  

Broader source: Energy.gov (indexed) [DOE]

TEC Meeting Evaluation Summary TEC Meeting Evaluation Summary San Antonio, Texas February 6-7, 2008 Attendee Affiliation: TEC Member Organizations: 19 (38%) State, Tribal or Local Official: 21 (42%) U.S. Department of Energy: 2 (4%) DOE Contractor: 3 (6%) Other (e.g., AULG, DOT): 5 (10%) Assessment of Agenda Topics: DOE Program Updates: 42% very useful 58% somewhat useful Plenary I - Tribal Cultural Discussion: 40% very useful 36% somewhat useful 14% not useful 10% didn't attend Plenary II - Evaluation of Shortline Railroads 56% very useful 38% somewhat useful 6% not useful Plenary III - Addressing Risk Perception 74% very useful 16% somewhat useful 6% not useful 4% didn't attend Assessment of Topic Group Sessions Tribal: 23% very useful

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Sandia National Laboratories: Evaluating Powerful Batteries for...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ClimateECEnergyEvaluating Powerful Batteries for Modular Electric Grid Energy Storage Evaluating Powerful Batteries for Modular Electric Grid Energy Storage Sandian Spoke at the...

442

Speeding Up Zeolite Evaluation for Carbon Capture  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Speeding Up Zeolite Evaluation for Carbon Capture Speeding Up Zeolite Evaluation for Carbon Capture Zeolite.png Schematic of an important class of porous materials known as...

443

Technology Validation: Fuel Cell Bus Evaluations | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Technology Validation: Fuel Cell Bus Evaluations Technology Validation: Fuel Cell Bus Evaluations 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and...

444

Assessment of Evaluation, Measurement, and Verification Methods...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Assessment of Evaluation, Measurement, and Verification Methods - 2014 BTO Peer Review Assessment of Evaluation, Measurement, and Verification Methods - 2014 BTO Peer Review...

445

Benefits of Evaluation, Measurement, and Verification | Department...  

Broader source: Energy.gov (indexed) [DOE]

Benefits of Evaluation, Measurement, and Verification Benefits of Evaluation, Measurement, and Verification This document provides information about the benefits of performing...

446

Advanced Vehicle Testing Activity (AVTA) ? PHEV Evaluations...  

Broader source: Energy.gov (indexed) [DOE]

Advanced Vehicle Testing Activity (AVTA) PHEV Evaluations and Data Collection Advanced Vehicle Testing Activity (AVTA) PHEV Evaluations and Data Collection Presentation from...

447

Advanced Vehicle Testing & Evaluation | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Evaluation vss029karner2011o.pdf More Documents & Publications Advanced Vehicle Testing & Evaluation Vehicle Technologies Office: 2010 Vehicle and Systems Simulation and...

448

NREL: Energy Storage - Energy Storage Systems Evaluation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Energy Storage Systems Evaluation Photo of man standing between two vehicles and plugging the vehicle on the right into a charging station. NREL system evaluation has confirmed...

449

RL's Fiscal Year 2013 Fee Evaluation Summary  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Award Period: October 2012 through September 2013 Basis of Evaluation: Performance Evaluation and Measurement Plan (PEMP) Award Fee Available: 21,030,647 Award Fee Earned:...

450

Measure and Evaluate Institutional Change for Sustainability  

Broader source: Energy.gov [DOE]

The measure and evaluation step is crucial to ensure that institutional change efforts produce successful results in meeting sustainability goals. To measure success, an evaluation is needed.

451

Evaluation Report: IG-0569 | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

9 Evaluation Report: IG-0569 September 13, 2002 The Federal Energy Regulatory Commission's Unclassified Cyber Security Program Evaluation Report on "The Federal Energy Regulatory...

452

GETEM -Geothermal Electricity Technology Evaluation Model | Department...  

Energy Savers [EERE]

GETEM -Geothermal Electricity Technology Evaluation Model GETEM -Geothermal Electricity Technology Evaluation Model A guide to providing input to GETEM, the Geothermal Electricity...

453

GETEM - Geothermal Electricity Technology Evaluation Model |...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

GETEM - Geothermal Electricity Technology Evaluation Model GETEM - Geothermal Electricity Technology Evaluation Model A guide to providing input to GETEM, the Geothermal...

454

Measure and Evaluate Institutional Change for Sustainability...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Measure and Evaluate Institutional Change for Sustainability Measure and Evaluate Institutional Change for Sustainability Graphic showing 5 gears. They progress from Determine Goal...

455

Evaluation of inservice inspection examinatiions  

SciTech Connect (OSTI)

In order to evaluate the effectiveness of Section 11, Division 1, ``Rules for Inservice Inspection of Nuclear Power Plant Components,`` of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code examinations, 26 inservice inspection (ISI) summary reports from 24 facilities were reviewed. It was found that these ASME Code examinations and tests are instrumental in revealing indications and defects in welds and plant components. In addition, this study uncovered that fact that some of the Section 11 requirements are apparently not clear and are misunderstood by some of the facilities. Also, the need for more stringent requirements was evaluated and some Code changes are recommended.

Aldrich, D.A.; Cook, J.F.

1990-05-01T23:59:59.000Z

456

Evaluation of inservice inspection examinatiions  

SciTech Connect (OSTI)

In order to evaluate the effectiveness of Section 11, Division 1, Rules for Inservice Inspection of Nuclear Power Plant Components,'' of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code examinations, 26 inservice inspection (ISI) summary reports from 24 facilities were reviewed. It was found that these ASME Code examinations and tests are instrumental in revealing indications and defects in welds and plant components. In addition, this study uncovered that fact that some of the Section 11 requirements are apparently not clear and are misunderstood by some of the facilities. Also, the need for more stringent requirements was evaluated and some Code changes are recommended.

Aldrich, D.A.; Cook, J.F.

1990-05-01T23:59:59.000Z

457

Nondestructive Evaluation on Hydrided LWR Fuel Cladding by Small Angle Incoherent Neutron Scattering of Hydrogen  

SciTech Connect (OSTI)

A non-destructive neutron scattering method was developed to precisely measure the uptake of total hydrogen in nuclear grade Ziraloy-4 cladding. The hydriding apparatus consists of a closed stainless steel vessel that contains Zr alloy specimens and H gas. By controlling the initial H gas pressure in the vessel and the temperature profile, target H concentrations from tens of ppm to a few thousands of wppm have been successfully achieved. Following H charging, the H content of the hydrided specimens was measured using the vacuum hot extraction method (VHE), by which the samples with desired H concentration were selected for the neutron study. Small angle neutron incoherent scattering (SANIS) were performed in the High Flux Isotope Reactor at Oak Ridge national Laboratory (ORNL). Our study indicates that a very small amount ( 20 ppm) H in commercial Zr cladding can be measured very accurately in minutes for a wide range of H concentration by a nondestructive method. The H distribution in a tube sample was obtained by scaling the neutron scattering rate with a factor, which is determined by calibration process with direct chemical analysis method on the specimen. This scale factor can be used for future test with unknown H concentration, thus provide a nondestructive method for absolute H concentration determination.

Yan, Yong [ORNL; Qian, Shuo [ORNL; Littrell, Ken [ORNL; Parish, Chad M [ORNL; Bell, Gary L [ORNL; Plummer, Lee K [ORNL

2013-01-01T23:59:59.000Z

458

Annual Energy Outlook Forecast Evaluation  

Gasoline and Diesel Fuel Update (EIA)

Analysis Papers > Annual Energy Outlook Forecast Evaluation Analysis Papers > Annual Energy Outlook Forecast Evaluation Release Date: February 2005 Next Release Date: February 2006 Printer-friendly version Annual Energy Outlook Forecast Evaluation* Table 1.Comparison of Absolute Percent Errors for Present and Current AEO Forecast Evaluations Printer Friendly Version Average Absolute Percent Error Variable AEO82 to AEO99 AEO82 to AEO2000 AEO82 to AEO2001 AEO82 to AEO2002 AEO82 to AEO2003 AEO82 to AEO2004 Consumption Total Energy Consumption 1.9 2.0 2.1 2.1 2.1 2.1 Total Petroleum Consumption 2.9 3.0 3.1 3.1 3.0 2.9 Total Natural Gas Consumption 7.3 7.1 7.1 6.7 6.4 6.5 Total Coal Consumption 3.1 3.3 3.5 3.6 3.7 3.8 Total Electricity Sales 1.9 2.0 2.3 2.3 2.3 2.4 Production Crude Oil Production 4.5 4.5 4.5 4.5 4.6 4.7

459

Nuclear Explosive Safety Evaluation Processes  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

This Manual provides supplemental details to support the nuclear explosive safety (NES) evaluation requirement of Department of Energy (DOE) Order (O) 452.2D, Nuclear Explosive Safety, dated 4/14/09. Admin Chg 1, dated 7-10-13, cancels DOE M 452.2-2.

2009-04-14T23:59:59.000Z

460

INLAND PORT TRANSPORTATION EVALUATION GUIDE  

E-Print Network [OSTI]

INLAND PORT TRANSPORTATION EVALUATION GUIDE by Robert Harrison, Center for Transportation Research Transportation Institute, The Texas A&M University System; and Jolanda Prozzi, Center for Transportation Research, The University of Texas at Austin CENTER FOR TRANSPORTATION RESEARCH Bureau of Engineering Research

Texas at Austin, University of

Note: This page contains sample records for the topic "non-destructive evaluation nde" 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

Super Efficient Refrigerator Program (SERP) evaluation. Volume 1: Process evaluation  

SciTech Connect (OSTI)

The Pacific Northwest National Laboratory (PNNL) conducted this study for the US Department of Energy (DOE) as part of the Super Efficient Refrigerator Program (SERP) Evaluation. This report documents the SERP formation and implementation process, and identifies preliminary program administration and implementation issues. The findings are based primarily on interviews with those familiar with the program, such as utilities, appliance manufacturers, and SERP administrators. These interviews occurred primarily between March and April 1995, when SERP was in the early stages of program implementation. A forthcoming report will estimate the preliminary impacts of SERP within the industry and marketplace. Both studies were funded by DOE at the request of SERP Inc., which sought a third-party evaluation of its program.

Sandahl, L.J.; Ledbetter, M.R.; Chin, R.I.; Lewis, K.S.; Norling, J.M.

1996-01-01T23:59:59.000Z

462

Assessor Training Evaluating OnSite Reports  

E-Print Network [OSTI]

NVLAP Assessor Training Evaluating OnSite Reports and Corrective Actions #12;Assessor Training 2009Site Report form ·NVLAP OnSite Assessment Review form #12;Assessor Training 2009: Evaluating OnSite Reports · Nonconformities cited #12;Assessor Training 2009: Evaluating OnSite Reports & Corrective Actions 44 Evaluating

463

David Joseph Corr Contact Information  

E-Print Network [OSTI]

," Proceedings, Review of Progress in Quantitative NDE. Iowa State University Center for NDE. #12;2 Kosnik D

Ottino, Julio M.

464

U.S. Department of the Interior U.S. Geological Survey  

E-Print Network [OSTI]

nde Gra nde RioRio ARIZONA NEW MEXICO UTAH COLORADO MEXICO OREGON CALIFORNIA IDAHO WYOMING NEVADA 0 45

465

Safety and Emergency Management Evaluations - Guidance Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Guidance Documents Guidance Documents Safety and Emergency Management Evaluations Office Protocols Office of Safety and Emergency Management Evaluations Protocol for the Development and Maintenance of Criteria and Review Approach Documents, July 2013 Office of Safety and Emergency Management Evaluations Protocol for High Hazard Nuclear Facility Project Oversight, November 2012 Office of Safety and Emergency Management Evaluations Protocol for Required Reading, June 2012 Office of Safety and Emergency Management Evaluations Protocol for Small Team Oversight Activities, June 2012 (Rev. 1) Office of Safety and Emergency Management Evaluations Qualification Standard for the Site Lead Program, May 2011 Office of Safety and Emergency Management Evaluations Protocol for Site Leads, May 2011

466

Microsoft Word - 49047_ANL_NDE for Ceramic Composites.doc  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

developing various special test components with well-defined features developing various special test components with well-defined features such as delaminations and density variations that can be used as test articles for detection sensitivity by the non- contact, nondestructive methods under development. Argonne is developing several non-contact, nondestructive technologies including thermal imaging using steady-state heating, one-sided air-coupled imaging ultrasonics, and acousto-ultrasonic materials response measurements using guided plate waves. In the work of this project, directed towards estimating remaining useful lifetimes of the components, Argonne is building on their previous work directed towards silicon-based composites. Elastic modulus determination from data generated with acousto- ultrasonics methods is coupled with a damage parameter model to estimate remaining useful life when the

467

Use of fiber optic guided, laser induced acoustic waves for nde  

E-Print Network [OSTI]

. This correlates well to the established wave speed in steel for a SAW of 2. 96 mm/p s . The second approach consisted of attenuating the signal by applying acoustic couplant between the generation spot and the detection transducer and applying some finger.... This correlates well to the established wave speed in steel for a SAW of 2. 96 mm/p s . The second approach consisted of attenuating the signal by applying acoustic couplant between the generation spot and the detection transducer and applying some finger...

Duffer, Charles Edward

2012-06-07T23:59:59.000Z

468

E-Print Network 3.0 - advanced nde technologies Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

> >> Page: << < 1 2 3 4 5 > >> 21 For more information, please contact Prof. EH Yang at Eui-Hyeok.Yang@stevens.edu or 201-216-5574 STEVENS INSTITUTE OF TECHNOLOGY Summary: -like...

469

Roll-to-Roll Electrode Processing NDE for Advanced Lithium Secondary...  

Broader source: Energy.gov (indexed) [DOE]

Merit Review, June 18, 2014 Summary * Objective: This project facilitates lowering unit energy cost of EVs and PHEVs by addressing the electrode scrap rate, QC enhancement,...

470

Roll-to-Roll Electrode Processing and Materials NDE for Advanced...  

Broader source: Energy.gov (indexed) [DOE]

Merit Review, May 14, 2013 Summary * Objective: this project facilitates lowering unit energy cost of EVs and PHEVs by addressing the electrode scrap rate, QC enhancement, and...

471

Advanced ultrasonic NDE of composite airframe components: physics, modelling and technology.  

E-Print Network [OSTI]

??In recent years the use of composites in engineering has greatly increased due to the advantages which may be obtained. These are weight savings, increased… (more)

Mienczakowski, Martin

2010-01-01T23:59:59.000Z

472

Using phase information to enhance speckle noise reduction in the ultrasonic NDE of coarse grain materials  

SciTech Connect (OSTI)

Materials with a coarse grain structure are becoming increasingly prevalent in industry due to their resilience to stress and corrosion. These materials are difficult to inspect with ultrasound because reflections from the grains lead to high noise levels which hinder the echoes of interest. Spatially Averaged Sub-Aperture Correlation Imaging (SASACI) is an advanced array beamforming technique that uses the cross-correlation between images from array sub-apertures to generate an image weighting matrix, in order to reduce noise levels. This paper presents a method inspired by SASACI to further improve imaging using phase information to refine focusing and reduce noise. A-scans from adjacent array elements are cross-correlated using both signal amplitude and phase to refine delay laws and minimize phase aberration. The phase-based and amplitude-based corrected images are used as inputs to a two-dimensional cross-correlation algorithm that will output a weighting matrix that can be applied to any conventional image. This approach was validated experimentally using a 5MHz array a coarse grained Inconel 625 step wedge, and compared to the Total Focusing Method (TFM). Initial results have seen SNR improvements of over 20dB compared to TFM, and a resolution that is much higher.

Lardner, Timothy; Gachagan, Anthony [Centre for Ultrasonic Engineering, University of Strathclyde, Glasgow, G1 1XW (United Kingdom); Li, Minghui [School of Engineering, University of Glasgow, Glasgow, G12 8QQ (United Kingdom)

2014-02-18T23:59:59.000Z

473

Roll-to-Roll Electrode Processing and Materials NDE for Advanced...  

Broader source: Energy.gov (indexed) [DOE]

by UT-Battelle for the U.S. Department of Energy May 17, 2012 Thickness Measurement on Patch Coated Electrode (Continuous Scanning) (a) (b) (a) (b) ridge on the foil -0.02 0 0.02...

474

Specific test and evaluation plan  

SciTech Connect (OSTI)

The purpose of this Specific Test and Evaluation Plan (STEP) is to provide a detailed written plan for the systematic testing of modifications made to the 241-AX-B Valve Pit by the W-314 Project. The STEP develops the outline for test procedures that verify the system`s performance to the established Project design criteria. The STEP is a lower tier document based on the W-314 Test and Evaluation Plan (TEP). Testing includes Validations and Verifications (e.g., Commercial Grade Item Dedication activities), Factory Acceptance Tests (FATs), installation tests and inspections, Construction Acceptance Tests (CATs), Acceptance Test Procedures (ATPs), Pre-Operational Test Procedures (POTPs), and Operational Test Procedures (OTPs). It should be noted that POTPs are not required for testing of the transfer line addition. The STEP will be utilized in conjunction with the TEP for verification and validation.

Hays, W.H.

1998-03-20T23:59:59.000Z

475

Water Efficiency Evaluation Service Contracts  

Broader source: Energy.gov [DOE]

To help meet Energy Independence and Security Act of 2007 requirements for comprehensive water evaluations of at least 25% of covered facilities each year, Federal agencies may choose to hire a water management firm. A report was developed that includes the essential elements of a well-formed statement of work (SOW) for comprehensive water assessments to assist agencies in developing contracts with water contractors, which includes:

476

The CZTU uranium concentration analysis code  

SciTech Connect (OSTI)

A {sup 235}U analysis code, CZTU, has been written that can non- destructively evaluate the percentage of {sup 235}U in a uranium sample from the analysis of the emitted gamma rays. This code utilizes gamma spectra measured from room temperature Cadmium Zinc Telluride (CdZnTe or CZT) detectors. It has an accuracy midway between that obtained with sodium iodide and germanium crystal detectors. This report describes how to use the code, some results, limitations and design considerations.

Clark, D., LLNL

1998-07-17T23:59:59.000Z

477

Method for deriving information regarding stress from a stressed ferromagnetic material  

DOE Patents [OSTI]

A non-destructive evaluation technique for deriving stress in ferromagnetic materials including deriving anhysteretic and hysteresis magnetization curves for the material in both unstressed and stressed states. The anhysteretic curve is expressed as a Langevin function. The stress is expressed as an equivalent magnetic field dependent on stress and change of magnetostriction with magnetization. By measurement of these bulk magnetic properties, stress can be derived.

Jiles, David C. (Ames, IA)

1991-04-30T23:59:59.000Z

478

Annual Energy Outlook Forecast Evaluation  

Gasoline and Diesel Fuel Update (EIA)

by Esmeralda Sanchez by Esmeralda Sanchez Errata -(7/14/04) The Office of Integrated Analysis and Forecasting has produced an annual evaluation of the accuracy of the Annual Energy Outlook (AEO) since 1996. Each year, the forecast evaluation expands on the prior year by adding the projections from the most recent AEO and the most recent historical year of data. The Forecast Evaluation examines the accuracy of AEO forecasts dating back to AEO82 by calculating the average absolute forecast errors for each of the major variables for AEO82 through AEO2003. The average absolute forecast error, which for the purpose of this report will also be referred to simply as "average error" or "forecast error", is computed as the simple mean, or average, of all the absolute values of the percent errors, expressed as the percentage difference between the Reference Case projection and actual historic value, shown for every AEO and for each year in the forecast horizon (for a given variable). The historical data are typically taken from the Annual Energy Review (AER). The last column of Table 1 provides a summary of the most recent average absolute forecast errors. The calculation of the forecast error is shown in more detail in Tables 2 through 18. Because data for coal prices to electric generating plants were not available from the AER, data from the Monthly Energy Review (MER), July 2003 were used.

479

Solar Two Performance Evaluation Methodology  

SciTech Connect (OSTI)

Solar Two is a 10-MWe prototype central-receiver plant east of Barstow, California. Solar Two, which is sponsored by a consortium of utilities and industry in partnership with the U.S. Department of Energy, began regular electricity production in February 1997. The objective of Solar Two's performance evaluation activity is to understand the plant's performance and to use the evaluation information for the following purposes: optimize plant performance, extrapolate Solar Two's performance to general performance of molten-salt central-receiver technology, and recommend revisions to predictive models and engineering design methods for Solar Two and future-generation molten-salt central-receiver technology. The primary aspect of the performance evaluation is the lost-electricity analysis. This analysis compares the actual generation with the generation predicted by the Solar Two model. (SOLERGY, a computer program designed by Sandia National Laboratories to simulate the operation and power output of a solar central-receiver power plant is the code used to model Solar Two.) The difference between the predicted and the actual generation (i.e., the lost electricity) is broken down into the different efficiency and availability categories responsible for the loss. Having the losses broken down by system and in terms of electricity is useful for understanding and improving the plant's performance; it provides a tool for determining the best operating procedures for plant performance and the allocation of operation and maintenance resources for the best performance payback.

Mary Jane Hale

1999-11-01T23:59:59.000Z

480

CBFWA Wildlife Habitat Evaluation Procedures (HEP)CBFWA Wildlife Habitat Evaluation Procedures (HEP) (2006(2006--006006--00)00)  

E-Print Network [OSTI]

CBFWA Wildlife Habitat Evaluation Procedures (HEP)CBFWA Wildlife Habitat Evaluation Procedures (HEP 101HEP 101 Habitat Evaluation Procedures (HEP) developed byHabitat Evaluation Procedures (HEP

Note: This page contains sample records for the topic "non-destructive evaluation nde" from the National Library of EnergyBeta (NLEBeta).
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481

Evaluating learning technologies: frameworks and case studies  

Science Journals Connector (OSTI)

Evaluation frameworks have been developed for studying learning technology. In this paper, we review their application to a number of evaluation projects, reflect on recent developments in the area of evaluation and illustrate how these frameworks have been applied by reflecting on the methods employed in three contrasting case studies. Each case study is an evaluation of an innovative use of information technology. The first case study describes the evaluation activities related to the technology-enhanced components of an introductory physics course for distance learners, 'Physical World', focusing on the evaluation of multimedia tutorials. The second case study discusses an evaluation project focusing on the impact of networked technologies on learning at school level, the 'ImpaCT2' evaluation, and describes the methods used in tracking use of technology both at school and at home. The third case study involves the evaluation of a history website on a full time higher education course, 'The History of the USA'.

Eileen Scanlon; Canan Blake; Kim Issroff; Cathy Lewin

2006-01-01T23:59:59.000Z

482

Proactive Management of Materials Degradation (PMMD) and Enhanced Structural Reliability  

SciTech Connect (OSTI)

This paper discusses the U.S. Nuclear Regulatory Commission’s (NRC) activities to further the Proactive Management of Materials Degradation (PMMD), including those to determine the effectiveness of emerging NDE techniques. The paper discusses the first part of the development of a methodology to determine the effectiveness of these emerging NDE techniques for managing metallic degradation. This methodology draws on experience derived from evaluating techniques that have ‘emerged’ in the past. The methodology will follow five stages: a definition of inspection parameters, a technical evaluation, laboratory testing, round-robin testing, and the design of a performance demonstration program. This methodology will document the path taken for previous techniques and set a standardized course for future NDE techniques.

Doctor, Steven R.; Bond, Leonard J.; Cumblidge, Stephen E.; Hull, Amy; Malik, Shah

2009-09-01T23:59:59.000Z

483

Money Smart Evaluation Process Evaluation of the Money Smart program involves 3 parts  

E-Print Network [OSTI]

Money Smart Evaluation Process Evaluation of the Money Smart program involves 3 parts: o Pre on the FCS Agent website under Money Smart. End of session evaluations are also included in the Instructor

484

Evaluation of Retrofit Delivery Packages  

SciTech Connect (OSTI)

Residential energy retrofit activities are a critical component of efforts to increase energy efficiency in the U.S. building stock; however, retrofits account for a small percentage of aggregate energy savings at relatively high per unit costs. This report by Building America research team, Alliance for Residential Building Innovation (ARBI), describes barriers to widespread retrofits and evaluates opportunities to improve delivery of home retrofit measures by identifying economies of scale in marketing, energy assessments, and bulk purchasing through pilot programs in portions of Sonoma, Los Angeles, and San Joaquin Counties, CA. These targeted communities show potential and have revealed key strategies for program design, as outlined in the report.

Berman, M.; Smith, P.; Porse, E.

2013-07-01T23:59:59.000Z

485

Evaluate Greenhouse Gas Reduction Strategies for Buildings |...  

Broader source: Energy.gov (indexed) [DOE]

office buildings, Program B can evaluate other key building types (i.e., storage and hospital facilities) using the same approach. Once all key building types are evaluated, the...

486

Fuzzy Synthetic Evaluation of Gas Station Safety  

Science Journals Connector (OSTI)

Based on the comprehensive analysis of hazard factors and evaluation indexes in gas stations, gas station safety is assessed in a fuzzy synthetic ... comprehensive evaluation, the specific safety level of gas stations

Xiaohua Hao; Xiao Feng

2010-01-01T23:59:59.000Z

487

Evaluating User Privacy in Bitcoin  

E-Print Network [OSTI]

Abstract. Bitcoin is quickly emerging as a popular digital payment system. However, in spite of its reliance on pseudonyms, Bitcoin raises a number of privacy concerns due to the fact that all of the transactions that take place are publicly announced in the system. In this paper, we investigate the privacy guarantees of Bitcoin in the setting where Bitcoin is used as a primary currency for the daily transactions of individuals. More specifically, we evaluate the privacy that is provided by Bitcoin (i) by analyzing the genuine Bitcoin system and (ii) through a simulator that faithfully mimics the operation of Bitcoin in the context where Bitcoin is used for all transactions within a university. In this setting, our results show that the profiles of almost 40 % of the users can be, to a large extent, recovered even when users adopt privacy measures recommended by Bitcoin. To the best of our knowledge, this is the first work that comprehensively analyzes, and evaluates the privacy implications of Bitcoin. As a by-product, we have designed and implemented the first simulator of Bitcoin; our simulator can be used to model the interaction between Bitcoin users in generic settings. 1

Elli Androulaki; Ghassan O. Karame; Marc Roeschlin; Tobias Scherer

488

Field evaluation of composite crossarms  

SciTech Connect (OSTI)

In 1982 the Institute of Wood Research manufactured 200 composite wood crossarms (COMARMS) for a field evaluation of their performance in service. Four different types of COMARMS were fabricated using wood flake panels to test how long term load carrying capacity is affected by varying wood furnish, wood preservatives and adhesive system. After placement with utilities in Louisiana, Michigan, New Mexico, Texas and Washington, field inspections were carried out on over 120 COMARMS after 3 years of exposure and 6 years exposure. After 6 years of exposure, most of the COMARMS were removed at random and returned to the Institute for destructive mechanical testing and evaluation. Half of the controls were mechanically tested soon after fabrication, the other half were tested with the exposed COMARMS after six years of inside storage. Tests of insulating performance in weathered and unweathered arms were carried out by Detroit Edison Company. Results of the mechanical tests and field inspections showed a wide variety of performance strongly correlated to the formulation type. Results of the mechanical and electrical testing indicate that performance similar to that observed in the best formulations would be comparable to Douglas-fir crossarms. 24 refs.

Diebel, J.F.; Charneski, M.D.; Bulleit, W.A.; Pickens, J.M. (Michigan Technological Univ., Houghton, MI (United States). Inst. of Wood Research)

1991-10-01T23:59:59.000Z

489

High Efficiency Engine Systems Development and Evaluation  

Broader source: Energy.gov [DOE]

2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

490

Medium and Heavy Duty Vehicle Field Evaluations  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

491

test and evaluation | National Nuclear Security Administration  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

test and evaluation | National Nuclear Security Administration People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response...

492

Design and Evaluation of High Capacity Cathodes  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

493

Non-medical Uses of Computed Tomography (CT) and Nuclear Magnetic Resonance  

Office of Scientific and Technical Information (OSTI)

Non-medical Uses of Computed Tomography (CT) and Nuclear Magnetic Resonance (NMR) Resources with Additional Information Computed Tomography (CT) Scanner CT Scanner - Courtesy Stanford University Department of Energy Resources Engineering Computed tomography (CT) and Nuclear Magnetic Resonance (NMR) have been used to resolve industrial problems, for materials characterizations, and to provide non-destructive evaluations for discovering flaws in parts before their use, resulting in greater reliability and greater safety for workers; to identify the presence and facilitate the recovery/extraction of oil, water, coal, and/or gas; and to provide non-destructive testing and quality control of fresh fruits and vegetables, enhancing the safety of food. These benefits of non-medical uses of CT and NMR contribute to the economy and improve people's lives.

494

Non-medical Uses of Computed Tomography (CT) and Nuclear Magnetic Resonance  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Non-medical Uses of Computed Tomography (CT) Non-medical Uses of Computed Tomography (CT) and Nuclear Magnetic Resonance (NMR) Resources with Additional Information Computed Tomography (CT) Scanner CT Scanner - Courtesy Stanford University Department of Energy Resources Engineering Computed tomography (CT) and Nuclear Magnetic Resonance (NMR) have been used to resolve industrial problems, for materials characterizations, and to provide non-destructive evaluations for discovering flaws in parts before their use, resulting in greater reliability and greater safety for workers; to identify the presence and facilitate the recovery/extraction of oil, water, coal, and/or gas; and to provide non-destructive testing and quality control of fresh fruits and vegetables, enhancing the safety of food. These benefits of non-medical uses of CT and NMR contribute to the economy and improve people's lives.

495

Montana Statewide Spring Canola Variety Evaluation  

E-Print Network [OSTI]

0 2011 Montana Statewide Spring Canola Variety Evaluation #12;1 Table of Contents: Page Project .................................................................................................................11-20 #12;2 Montana Statewide Spring Canola Variety Evaluation, 2011 Project Leaders: Heather Mason Montana Statewide Spring Canola Variety Evaluation. SPONSOR VARIETY TYPE HERBICIDE RESISTANCE CONTACT

Dyer, Bill

496

Evaluation of Health Risks of Atmospheric Pollutants  

E-Print Network [OSTI]

4 5- (DRAFT) Evaluation of Health Risks of Atmospheric Pollutants Guy Landrieu INERIS Institut, Stuttgart : Germany (1995)" #12;INERIS: Evaluation of health risks of atmospheric pollutants (DRAFT may 1995) Evaluation of health risks of atmospheric pollutants Summary 1 Introduction 2 Background 3 Harmfulness

Paris-Sud XI, Université de

497

An Evaluation of the Interior Wetlands  

E-Print Network [OSTI]

#12;An Evaluation of the Interior Wetlands Program Accomplishments and Impacts to Date Prepared Interior Wetlands Program Evaluation Page i EXECUTIVE SUMMARY EXECUTIVE SUMMARY An Evaluation of the Interior Wetlands Program (IWP): Accomplishments and Impacts to Date This document presents the results

498

An Evaluation of the Interior Wetlands  

E-Print Network [OSTI]

#12;An Evaluation of the Interior Wetlands Program Accomplishments and Impacts to Date Executive;Dovetail Consulting Interior Wetlands Program Evaluation Page i EXECUTIVE SUMMARY EXECUTIVE SUMMARY An Evaluation of the Interior Wetlands Program (IWP): Accomplishments and Impacts to Date This document presents

499

The human dimension of program evaluation  

SciTech Connect (OSTI)

Social science issues play an important role in the evaluation of demand-side management (DSM) programs. In the very early years of DSM program evaluation in the United States, there was a fair amount of social science research applied to the behavioral aspects of energy efficiency. Since the mid-1980s, however, there has been a heavy emphasis on impact evaluation, technical measurement, and engineering methodologies. Although some have articulated the need to integrate behavioral research into energy evaluation, most emphasis has tended to center on the technical/engineering aspects. Increasingly, however, the realization is growing that it is necessary to integrate important behavioral variables into impact evaluation techniques. In addition, it is being further recognized that behavioral research questions are central to a number of critical evaluation issues: e.g., design of samples for evaluation studies, net energy savings, self-selection bias, free riders and free drivers, persistence of energy savings, process evaluation, and market impact evaluation. Finally, it is increasingly being realized that the utilization of evaluation results relies heavily on behavioral factors. Social science researchers should be poised to expect a greatly expanded role of behavioral research in evaluation. As new techniques are developed and perfected, as the results of impact evaluations become more abundant, and as the gap between technical energy savings potential and realized savings becomes more visible, research regarding the ``human dimension`` of program evaluation will be crucial. This paper provides an overview of the human dimension of program evaluation and focuses on key evaluation issues in demand-side management which will require the use of social science research for addressing these issues.

Vine, E.L.

1993-05-01T23:59:59.000Z

500

Evaluation Report: IG-0856 | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Evaluation Report: IG-0856 Evaluation Report: IG-0856 Evaluation Report: IG-0856 October 20, 2011 The Department's Unclassified Cyber Security Program - 2011 The Federal Information Security Management Act of 2002 (FISMA) provides direction on the development, implementation and management of an agency-wide information security program to provide protection commensurate with risk for Federal information and systems, including those managed by another agency or contractors. In accordance with FISMA, the Office of Inspector General conducted its annual independent evaluation to determine whether the Department of Energy's (Department) unclassified cyber security program adequately protected its information and systems. Our evaluation disclosed that the Department had taken steps to enhance its