Sample records for technique image logs

  1. Well Log Techniques | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwideWTED Jump to:Ohio: EnergyWebGenWelcome SampleTechniques Jump to:

  2. Test results of a corrosion logging technique using electromagnetic thickness and pipe analysis logging tools

    SciTech Connect (OSTI)

    Iliyan, I.S.; Brown, G.A.; Cotton, W.J. Jr.

    1983-04-01T23:59:59.000Z

    Recent innovations in subsurface corrosion practices of the Arabian American Oil Co. (ARAMCO) have reduced logging and workover costs substantially and have permitted the detection of corrosion in the outer string of two concentric casing strings. At the request of ARAMCO, Schlumberger conducted test under both simulated and field conditions. Results showed that the data required to evaluate casing corrosion in a 7-in.X9 5/8-in. completion can be obtained during a single logging run using a 21.6-in. coil spacing electromagnetic thickness tool (ETT-A /SUP TM/ ) sonde (as opposed to two runs with 17.6-in. and 21.6-in. sondes previously used). In addition, corrosion of the outer string of 9 5/8-in. or 13 3/8-in. casing can be detected by using the results of the ETT-A logs and pipe-analysis tool (PAT) logs or caliper logs. To date, the application of this technique has been very successful in ARAMCO's operations.

  3. COMPARISON OF ACOUSTIC AND ELECTRICAL IMAGE LOGS FROM THE COSO...

    Open Energy Info (EERE)

    THE COSO GEOTHERMAL FIELD, CA Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: COMPARISON OF ACOUSTIC AND ELECTRICAL IMAGE LOGS FROM THE...

  4. Nuclear Magnetic Resonance (NMR) is the only logging technique available to estimate pore-size

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    1 ABSTRACT Nuclear Magnetic Resonance (NMR) is the only logging technique available to estimate, Nuclear Magnetic Resonance (NMR) logging has been used to assess a handful of key petrophysical parameters

  5. Efficient SIMD technique with parallel Max-Log-MAP Algorithm for Turbo Decoders

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Efficient SIMD technique with parallel Max-Log-MAP Algorithm for Turbo Decoders David Gnaedig Turbo on a DSP a parallel Max-Log-MAP algorithm for turbo decoders. It consists in using SIMD instructions by the use of an adapted two-dimensional turbo code and its parallel interleaver structure. After a brief

  6. Search Log Analysis of the ARTstor Cultural Heritage Image Database

    E-Print Network [OSTI]

    Lowe, Heather Ann

    2013-01-01T23:59:59.000Z

    Patterns in a Digital Image Database. Information RetrievalCultural Heritage Image Database A thesis submitted inCultural Heritage Image Database by Heather Ann Lowe Master

  7. Integrating User Feedback Log into Relevance Feedback by Coupled SVM for Content-Based Image Retrieval

    E-Print Network [OSTI]

    Lyu, Michael R.

    , the user feedback log is one of the most important resources to bridge the seman- tic gap problem in image to re- peat many rounds of feedback in order to achieve satisfac- tory results. Hence, the learning task

  8. Evaluation of Non-Nuclear Techniques for Well Logging: Final Report

    SciTech Connect (OSTI)

    Bond, Leonard J.; Griffin, Jeffrey W.; Harris, R. V.; Denslow, Kayte M.; Moran, Traci L.

    2011-08-01T23:59:59.000Z

    The focus of this study is the understanding of the technical obstacles that hinder the replacement of and the disadvantages from the loss of extensive interpretation experience based on data accumulated with AmBe. Enhanced acoustic and electromagnetic sensing methods in combination with non-isotope-based well logging techniques have the potential to complement and/or replace existing isotope-based techniques, providing the opportunity to reduce oil industry dependence on isotopic sources such as AmBe.

  9. Dissertation Imaging as Characterization Techniques

    E-Print Network [OSTI]

    Sites, James R.

    Telluride Photovoltaics The goal of increasing the efficiency of solar cell devices is a universal oneDissertation Imaging as Characterization Techniques for Thin-Film Cadmium Telluride Photovoltaics. Increased photovoltaic (PV) performance means an increase in competition with other energy tech- nologies

  10. Electric Micro Imager Log At Coso Geothermal Area (2003) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 No revision| Open JumpEcologyElInformation Imager Log At Coso

  11. Electronic imaging system and technique

    DOE Patents [OSTI]

    Bolstad, J.O.

    1984-06-12T23:59:59.000Z

    A method and system for viewing objects obscurred by intense plasmas or flames (such as a welding arc) includes a pulsed light source to illuminate the object, the peak brightness of the light reflected from the object being greater than the brightness of the intense plasma or flame; an electronic image sensor for detecting a pulsed image of the illuminated object, the sensor being operated as a high-speed shutter; and electronic means for synchronizing the shutter operation with the pulsed light source.

  12. Object-Based Image Analysis of Downed Logs in Disturbed Forested Landscapes Using Lidar

    E-Print Network [OSTI]

    Kelly, Maggi

    2011-01-01T23:59:59.000Z

    quantity and location of downed logs in forests is important for assessing fire risk [4,5], measuring dead biomass

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

    SciTech Connect (OSTI)

    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

    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.

  14. Imaging techniques utilizing optical fibers and tomography

    SciTech Connect (OSTI)

    Wilke, M.; King, N.S.P.; Gray, N.; Johnson, D.; Esquibel, D.; Nedrow, P.; Ishiwata, S.

    1985-01-01T23:59:59.000Z

    Two-dimensional, time-dependent images generated by neutrons, gamma rays, and x-rays incident on fast scintillators are relayed to streak and video cameras over optical fibers. Three dimensions, two spatial and one temporal, have been reduced to two, one in space and time utilizing sampling methods permitting reconstruction of a time-dependent, two-dimensional image subsequent to data recording. The manner in which the sampling is done optimized the ability to reconstruct the image via a maximization of entropy algorithm. This method uses four linear fiber optic arrays typically 30 meters long and up to 35 elements each. A further refinement of this technique collapses the linear array information into four single fibers by wavelength multiplexing. This permits economical transmission of the data over kilometer distances to the recording equipment.

  15. advanced imaging techniques: Topics by E-print Network

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

    Image restoration Lfdahl, Mats 8 Advanced Penning-type ion source development and passive beam focusing techniques for an associated particle imaging neutron generator. Open...

  16. Evaluation of Non-Nuclear Techniques for Well Logging: Technology Evaluation

    SciTech Connect (OSTI)

    Bond, Leonard J.; Denslow, Kayte M.; Griffin, Jeffrey W.; Dale, Gregory E.; Harris, Robert V.; Moran, Traci L.; Sheen, David M.; Schenkel, Thomas

    2010-11-01T23:59:59.000Z

    This report presents an initial review of the state-of-the-art nuclear and non-nuclear well logging methods and seeks to understand the technical and economic issues if AmBe, and potentially other isotope sources, are reduced or even eliminated in the oil-field services industry. Prior to considering alternative logging technologies, there is a definite need to open up discussions with industry regarding the feasibility and acceptability of source replacement. Industry views appear to range from those who see AmBe as vital and irreplaceable to those who believe that, with research and investment, it may be possible to transition to electronic neutron sources and employ combinations of non-nuclear technologies to acquire the desired petro-physical parameters. In one sense, the simple answer to the question as to whether petro-physical parameters can be sensed with technologies other than AmBe is probably "Yes". The challenges come when attention turns to record interpretation. The many decades of existing records form a very valuable proprietary resource, and the interpretation of subtle features contained in these records are of significant value to the oil-gas exploration community to correctly characterize a well. The demonstration of equivalence and correspondence/correlation between established and any new sensing modality, and correlations with historic records is critical to ensuring accurate data interpretation. Establishing the technical basis for such a demonstration represents a significant effort.

  17. Techniques calm fear of imaging machine

    SciTech Connect (OSTI)

    Van Pelt, D.

    1990-04-02T23:59:59.000Z

    Magnetic resonance imaging has become a valuable tool in diagnosing diseases, and the imaging devices are now used as often as 2 million times a year in the United States. But as many as 10 percent of patients advised to undergo the procedure cannot because they become overwhelmed with claustrophobialike fear triggered by having to lie motionless in the machine's tunnel-like cylinder for about 45 minutes. To counteract this fear, several hospitals now practice various techniques to help reduce the feelings of confinement. One popular method is to give a patient special eyeglasses that allow him to look beyond his feet and see the tunnel opening. Other glasses use mirrors to direct the patient's vision out the back of the unit to large wilderness photographs or murals that simulate a sense of spaciousness. Even a basic item like a set of headphones that plays music can often distract a patient, and technicians frequently hold a patient's hand or foot during the procedure. Another trick is to invite family members and friends to remain with the patient during the scan to provide company and reassurance.

  18. The characterization of particle clouds using optical imaging techniques

    E-Print Network [OSTI]

    Bruce, Elizabeth J. (Elizabeth Jane), 1972-

    1998-01-01T23:59:59.000Z

    Optical imaging techniques can be used to provide a better understanding of the physical properties of particle clouds. The purpose of this thesis is to design, perform and evaluate a set of experiments using optical imaging ...

  19. Neutron Imaging Explored as Complementary Technique for Improving...

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

    Neutron Imaging Explored as Complementary Technique for Improving Cancer Detection August 05, 2013 Researcher Maria Cekanova analyzes the neutron radiographs of a canine breast...

  20. Change Log

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

    Log NERSC-8 Trinity Benchmarks Change Log 09032013 Correction applied to MiniDFT web-page (to remove inconsistency with MiniDFT README). Capability Improvement measurements...

  1. Madonne: Document Image Analysis Techniques for Cultural Heritage Documents

    E-Print Network [OSTI]

    Boyer, Edmond

    Madonne: Document Image Analysis Techniques for Cultural Heritage Documents Jean-Marc Ogier and Karl Tombre Abstract. This paper presents the Madonne project, a French initiative to use document image anal- ysis techniques for the purpose of preserving and exploiting heritage documents. 1

  2. Review of Parallel Computing Techniques for Computed Tomography Image Reconstruction

    E-Print Network [OSTI]

    Wang, Ge

    Review of Parallel Computing Techniques for Computed Tomography Image Reconstruction Jun Ni1, 3 representative analytic and iterative reconstruction algorithms for X-ray computed tomography (CT), we address X-ray computed tomography (CT) is one of the most important non-invasive medical imaging techniques

  3. Selective document image data compression technique

    DOE Patents [OSTI]

    Fu, C.Y.; Petrich, L.I.

    1998-05-19T23:59:59.000Z

    A method of storing information from filled-in form-documents comprises extracting the unique user information in the foreground from the document form information in the background. The contrast of the pixels is enhanced by a gamma correction on an image array, and then the color value of each of pixel is enhanced. The color pixels lying on edges of an image are converted to black and an adjacent pixel is converted to white. The distance between black pixels and other pixels in the array is determined, and a filled-edge array of pixels is created. User information is then converted to a two-color format by creating a first two-color image of the scanned image by converting all pixels darker than a threshold color value to black. All the pixels that are lighter than the threshold color value to white. Then a second two-color image of the filled-edge file is generated by converting all pixels darker than a second threshold value to black and all pixels lighter than the second threshold color value to white. The first two-color image and the second two-color image are then combined and filtered to smooth the edges of the image. The image may be compressed with a unique Huffman coding table for that image. The image file is also decimated to create a decimated-image file which can later be interpolated back to produce a reconstructed image file using a bilinear interpolation kernel. 10 figs.

  4. CMOS passive pixel image design techniques

    E-Print Network [OSTI]

    Fujimori, Iliana L. (Iliana Lucia)

    2002-01-01T23:59:59.000Z

    CMOS technology provides an attractive alternative to the currently dominant CCD technology for implementing low-power, low-cost imagers with high levels of integration. Two pixel configurations are possible in CMOS ...

  5. USE OF ADVANCED DATA PROCESSING TECHNIQUES IN THE IMAGING OF...

    Open Energy Info (EERE)

    OF THE COSO GEOTHERMAL FIELD Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: USE OF ADVANCED DATA PROCESSING TECHNIQUES IN THE IMAGING...

  6. Study of microfluidic measurement techniques using novel optical imaging diagnostics

    E-Print Network [OSTI]

    Park, Jaesung

    2007-04-25T23:59:59.000Z

    is applied for a 3-D vector field mapping in a microscopic flow and a Brownian motion tracking of nanoparticles. This technique modifies OSSM system for a micro-fluidic experiment, and the imaging system captures a diffracted particle image having numerous...

  7. Self-imaging-based laser collimation testing technique

    SciTech Connect (OSTI)

    Mudassar, Asloob A.; Butt, Saira

    2010-11-01T23:59:59.000Z

    Laser collimation is required in many experiments based on lasers. Some laser experiments demand a high quality of collimation, e.g., the optical coherent processor, image transformer, and Fourier transform generator. A device is required to test the collimation of lasers in such experiments. We have suggested a modification in existing collimation testing techniques by which sensitivity can be improved. Theoretical analysis and experimental results demonstrate twice the improvement in sensitivity when used with previous techniques.

  8. Change Log

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWPSuccessAlamos LaboratoryCertified Reference MaterialsChange Log

  9. ILLEGAL LOGGING IN INDONESIA

    E-Print Network [OSTI]

    ILLEGAL LOGGING IN INDONESIA THE ENVIRONMENTAL, ECONOMIC AND SOCIAL COSTS #12;ILLEGAL LOGGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 II. Environmental Impacts of Illegal Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 #12;ILLEGAL LOGGING IN INDONESIA | 2 Executive Summary Indonesia's rainforests are the third

  10. A Review of Image-based Rendering Techniques Heung-Yeung Shum and Sing Bing Kang

    E-Print Network [OSTI]

    Pang, Alex

    A Review of Image-based Rendering Techniques Heung-Yeung Shum and Sing Bing Kang Microsoft Research hshum, sbkang @microsoft.com Abstract In this paper, we survey the techniques for image-based rendering. Unlike traditional 3D computer graphics in which 3D geometry of the scene is known, image-based rendering

  11. Technique Recovers Atomic Resolution in Spectrum Images | ornl...

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

    in Spectrum Images April 08, 2015 Raw Fe L-shell spectrum image data, which indicate magnetic properties of the material, were acquired using scanning transmission electron...

  12. Enhanced carbon-oxygen log interpretations using supplemental log curves

    SciTech Connect (OSTI)

    Wyatt, D.F. Jr.; Jacobson, L.A.; Fox, P.

    1994-12-31T23:59:59.000Z

    Supplemental measurements from induced nuclear spectrometry tools are examined to demonstrate what additional information they provide about the well and reservoir conditions. Logs in shut-in wells from Indonesia provide examples of oxygen activation measurements showing cross-flow from one reservoir to another via open perforations. Leaking squeezed perforations were also observed. An example from Alaska shows radioactive scale build-up in the casing which spectral analysis identifies as a mixture of uranium and thorium salts. Another log, where the casing fluid was replaced with crude oil, demonstrates a technique for identifying cement channels. Logs from Nigeria comparing oil saturation estimates before and after a squeeze operation illustrate the effect of casing fluid flushing of the formation through open perforations. Understanding the diagnostic character of these curves leads to higher confidence in the overall log interpretation process.

  13. Development of integrated imaging techniques for investigating biomarkers in glioblastoma

    E-Print Network [OSTI]

    Kim, Heisoog

    2011-01-01T23:59:59.000Z

    Cancer is a diverse disease with many manifestations. Various imaging modalities including magnetic resonance imaging (MRI) and positron emission tomography (PET) have been used to study human cancer. In this study, we ...

  14. Techniques on Analysis of Photo Phase Shift Imaging

    E-Print Network [OSTI]

    Terry, Robin 1990-

    2012-04-12T23:59:59.000Z

    . Real-time MRI temperature mapping was evaluated using the magnitude and phase difference DICOM images. To reduce noise on the temperature maps, a mask was created using the magnitude images and eliminating pixel values greater than a set threshold...

  15. Infrared Optical Imaging Techniques for Gas Visualization and Measurement

    E-Print Network [OSTI]

    Safitri, Anisa

    2012-07-16T23:59:59.000Z

    Advancement in infrared imaging technology has allowed the thermal imaging to detect and visualize several gases, mostly hydrocarbon gases. In addition, infrared cameras could potentially be used as a non-contact temperature measurement for gas...

  16. Detecting Botnets Through Log Correlation

    E-Print Network [OSTI]

    Al-Hammadi, Yousof

    2010-01-01T23:59:59.000Z

    Botnets, which consist of thousands of compromised machines, can cause significant threats to other systems by launching Distributed Denial of Service (SSoS) attacks, keylogging, and backdoors. In response to these threats, new effective techniques are needed to detect the presence of botnets. In this paper, we have used an interception technique to monitor Windows Application Programming Interface (API) functions calls made by communication applications and store these calls with their arguments in log files. Our algorithm detects botnets based on monitoring abnormal activity by correlating the changes in log file sizes from different hosts.

  17. An Efficient, General-Purpose Technique to Identify Storm Cells in Geospatial Images

    E-Print Network [OSTI]

    Lakshmanan, Valliappa

    An Efficient, General-Purpose Technique to Identify Storm Cells in Geospatial Images Valliappa and are not transferrable between different types of geospatial images. Yet, with the multitude of remote sensing on different types of geospatial radar and satel- lite images. Pointers are provided on the effective choice

  18. Combined Illumination Cylindrical Millimeter-Wave Imaging Technique for Concealed Weapon Detection

    SciTech Connect (OSTI)

    Sheen, David M.; McMakin, Douglas L.; Hall, Thomas E.

    2000-04-01T23:59:59.000Z

    A novel millimeter-wave imaging technique has been developed for personnel surveillance applications, including the detection of concealed weapons, explosives, drugs, and other contraband material. Millimeter-waves are high-frequency radio waves in the frequency band of 30-300 GHz, and pose no health threat to humans at moderate power levels. These waves readily penetrate common clothing materials, and are reflected by the human body and by concealed items. The combined illumination cylindrical imaging concept consists of a vertical, high-resolution, millimeter-wave array of antennas which is scanned in a cylindrical manner about the person under surveillance. Using a computer, the data from this scan is mathematically reconstructed into a series of focused 3-D images of the person. After reconstruction, the images are combined into a single high-resolution three-dimensional image of the person under surveillance. This combined image is then rendered using 3-D computer graphics techniques. The combined cylindrical illumination is critical as it allows the display of information from all angles. This is necessary because millimeter-waves do not penetrate the body. Ultimately, the images displayed to the operator will be icon-based to protect the privacy of the person being screened. Novel aspects of this technique include the cylindrical scanning concept and the image reconstruction algorithm, which was developed specifically for this imaging system. An engineering prototype based on this cylindrical imaging technique has been fabricated and tested. This work has been sponsored by the Federal Aviation Administration (FAA).

  19. Application of L1 Minimization Technique to Image Super-Resolution and Surface Reconstruction

    E-Print Network [OSTI]

    Talavatifard, Habiballah

    2013-05-06T23:59:59.000Z

    A surface reconstruction and image enhancement non-linear finite element technique based on minimization of L1 norm of the total variation of the gradient is introduced. Since minimization in the L1 norm is computationally expensive, we seek...

  20. Image Logs | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetecGtel JumpCounty, Texas:ITCSolidIdaho‎Information RiverIllumitex Jump

  1. A WAVELET-BASED IMAGE DENOISING TECHNIQUE USING SPATIAL PRIORS Aleksandra PIZURICA 1

    E-Print Network [OSTI]

    Pizurica, Aleksandra

    A WAVELET-BASED IMAGE DENOISING TECHNIQUE USING SPATIAL PRIORS Aleksandra PIZURICA 1 , Wilfried, Belgium ABSTRACT We propose a new wavelet-based method for image denoising that applies the Bayesian framework, using prior knowledge about the spatial clustering of the wavelet coefficients. Local spatial

  2. REMOTE SENSING TECHNIQUES FOR LAND USE CLASSIFICATION OF RIO JAUCA WATERSHED USING IKONOS IMAGES

    E-Print Network [OSTI]

    Gilbes, Fernando

    REMOTE SENSING TECHNIQUES FOR LAND USE CLASSIFICATION OF RIO JAUCA WATERSHED USING IKONOS IMAGES-Mayagez E-mail: edwinmm80@yahoo.com Key words: GIS, remote sensing, land use, supervised classification resource and supplies water to the metropolitan area. Remote sensing techniques can be used to assess

  3. Optimization Digital Image Watermarking Technique for Patent Protection

    E-Print Network [OSTI]

    Elnajjar, Mahmoud; Zaidan, B B; Sharif, Mohamed Elhadi M; Alanazi, Hamdan O

    2010-01-01T23:59:59.000Z

    The rapid development of multimedia and internet allows for wide distribution of digital media data. It becomes much easier to edit, modify and duplicate digital information besides that, digital documents are also easy to copy and distribute, therefore it will be faced by many threats. It is a big security and privacy issue. Another problem with digital document and video is that undetectable modifications can be made with very simple and widely available equipment, which put the digital material for evidential purposes under question With the large flood of information and the development of the digital format, it become necessary to find appropriate protection because of the significance, accuracy and sensitivity of the information, therefore multimedia technology and popularity of internet communications they have great interest in using digital watermarks for the purpose of copy protection and content authentication. Digital watermarking is a technique used to embed a known piece of digital data within a...

  4. Task-based strategy for optimized contrast enhanced breast imaging: Analysis of six imaging techniques for mammography and tomosynthesis

    SciTech Connect (OSTI)

    Ikejimba, Lynda C., E-mail: lci@duke.edu [Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 and Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Kiarashi, Nooshin [Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 and Department of Electrical and Computer Engineering, Duke University, Durham, North Carolina 27705 (United States)] [Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 and Department of Electrical and Computer Engineering, Duke University, Durham, North Carolina 27705 (United States); Ghate, Sujata V. [Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States)] [Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Samei, Ehsan [Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States) [Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States); Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Department of Electrical and Computer Engineering, Duke University, Durham, North Carolina 27705 (United States); Department of Physics, Duke University, Durham, North Carolina 27705 (United States); Department of Biomedical Engineering, Duke University, Durham, North Carolina 27705 (United States); Lo, Joseph Y. [Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States) [Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States); Carl E. Ravin Advanced Imaging Laboratories, Department of Radiology, Duke University Medical Center, Durham, North Carolina 27705 (United States); Department of Electrical and Computer Engineering, Duke University, Durham, North Carolina 27705 (United States); Department of Biomedical Engineering, Duke University, Durham, North Carolina 27705 (United States)

    2014-06-15T23:59:59.000Z

    Purpose: The use of contrast agents in breast imaging has the capability of enhancing nodule detectability and providing physiological information. Accordingly, there has been a growing trend toward using iodine as a contrast medium in digital mammography (DM) and digital breast tomosynthesis (DBT). Widespread use raises concerns about the best way to use iodine in DM and DBT, and thus a comparison is necessary to evaluate typical iodine-enhanced imaging methods. This study used a task-based observer model to determine the optimal imaging approach by analyzing six imaging paradigms in terms of their ability to resolve iodine at a given dose: unsubtracted mammography and tomosynthesis, temporal subtraction mammography and tomosynthesis, and dual energy subtraction mammography and tomosynthesis. Methods: Imaging performance was characterized using a detectability index d{sup ?}, derived from the system task transfer function (TTF), an imaging task, iodine signal difference, and the noise power spectrum (NPS). The task modeled a 10 mm diameter lesion containing iodine concentrations between 2.1 mg/cc and 8.6 mg/cc. TTF was obtained using an edge phantom, and the NPS was measured over several exposure levels, energies, and target-filter combinations. Using a structured CIRS phantom, d{sup ?} was generated as a function of dose and iodine concentration. Results: For all iodine concentrations and dose, temporal subtraction techniques for mammography and tomosynthesis yielded the highest d{sup ?}, while dual energy techniques for both modalities demonstrated the next best performance. Unsubtracted imaging resulted in the lowest d{sup ?} values for both modalities, with unsubtracted mammography performing the worst out of all six paradigms. Conclusions: At any dose, temporal subtraction imaging provides the greatest detectability, with temporally subtracted DBT performing the highest. The authors attribute the successful performance to excellent cancellation of inplane structures and improved signal difference in the lesion.

  5. Wireline logging tool catalog

    SciTech Connect (OSTI)

    Verdier, M.

    1986-01-01T23:59:59.000Z

    This book provides discussions on wireline logging tools. The contents are resistivity, radioactivity, acoustic, formation dip and borehold geometry, formation sampling, and auxiliary services.

  6. Density Log At Valles Caldera - Redondo Geothermal Area (Rowley...

    Open Energy Info (EERE)

    Rowley, Et Al., 1987) Exploration Activity Details Location Valles Caldera - Redondo Geothermal Area Exploration Technique Density Log Activity Date 1984 - 1984 Usefulness not...

  7. Image-Based Modeling and Rendering Techniques: A Survey Manuel M. Oliveira1

    E-Print Network [OSTI]

    Oliveira, Manuel M.

    Image-Based Modeling and Rendering Techniques: A Survey Manuel M. Oliveira1 Resumo: A recente denominadas modelagem e rendering baseados em imagens (MRBI). Modelagem baseada em imagens se refere ao processo de utilizao de imagens para reconstruo de modelos geomtricos 3D. Rendering baseado em imagens

  8. NREL scientists develop near-field optical microscopy techniques for imaging solar cell junctions and identify

    E-Print Network [OSTI]

    Solar cell producers are facing urgent pressures to lower module production cost.This achievementNREL scientists develop near-field optical microscopy techniques for imaging solar cell junctions is an increasingly important issue for silicon solar cells. The issue has taken center stage now that the solar

  9. Logging in to Hopper

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |Is Your HomeLatestCenterLogging in Logging in to FranklinLogging in

  10. Uncooled thin film infrared imaging device with aerogel thermal isolation: Deposition and planarization techniques

    SciTech Connect (OSTI)

    Ruffner, J.A.; Clem, P.G.; Tuttle, B.A.; Brinker, C.J. [Sandia National Labs., Albuquerque, NM (United States); Sriram, C.S. [Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Chemical and Nuclear Engineering; Bullington, J.A. [AMMPEC, Inc., Albuquerque, NM (United States)

    1998-04-01T23:59:59.000Z

    The authors have successfully integrated a thermally insulating silica aerogel thin film into a new uncooled monolithic thin film infrared (IR) imaging device. Compared to other technologies (bulk ceramic and microbridge), use of an aerogel layer provides superior thermal isolation of the pyroelectric imaging element from the relatively massive heat sinking integrated circuit. This results in significantly higher thermal and temporal resolutions. They have calculated noise equivalent temperature differences of 0.04--0.10 C from a variety of Pb{sub x}Zr{sub y}Ti{sub 1{minus}y}O{sub 3} (PZT) and Pb{sub x}La{sub 1{minus}x}Zr{sub y}Ti{sub 1{minus}y}O{sub 3} (PLZT) pyroelectric imaging elements in monolithic structures. In addition, use of aerogels results in an easier, less expensive fabrication process and a more robust device. Fabrication of these monolithic devices entails sol-gel deposition of the aerogel, sputter deposition of the electrodes, and solution chemistry deposition of the pyroelectric imaging elements. Uniform pyroelectric response is achieved across the device by use of appropriate planarization techniques. These deposition and planarization techniques are described. Characterization of the individual layers and monolithic structure using scanning electron microscopy, atomic force microscopy and Byer-Roundy techniques also is discussed.

  11. Three dimension temperature field reconstruction with image processing technique on pulverized coal boiler furnace

    SciTech Connect (OSTI)

    Shen Peihua; Qi Guoshui; Ma Zengyi [and others

    1999-07-01T23:59:59.000Z

    Temperature field distribution measurement is important for combustion diagnostics. With CCD camera, the authors can obtain abundance digital data of flame image instantaneous. Every data represent radiation heat transfer along projection beam. Based on Optic geometric and heat transfer theory, they develop a 3-d flame temperature field reconstruction technique, which can calculate a 3-d zone temperature using two perspectives CCD camera. The optical geometric relation of CCD's image formation and flame radiation heat transfer model is deduced, they establish the reconstruction equation group from radiation heat transfer, and optimization is introduced to solve these equation. The result of a PC boiler is presented.

  12. Modeling of capillary pressure behavior using standard open hole wireline log data: Demonstrated on carbonates from the Middle East

    SciTech Connect (OSTI)

    Ross, C.M. [Rice Univ., Houston, TX (United States); Callender, C.A.; Turbeville, J.B. [and others

    1995-12-31T23:59:59.000Z

    A new technique was developed to model capillary pressure behavior from wireline log data and applied to carbonate reservoir rock from a Saudi Aramco field. The method utilizes image analysis of petrographic thin sections, capillary pressure measurements, and neural network analysis of standard open hole wireline log data. Twenty capillary pressure curves and their associated pore type proportions (identified in thin section) are the basis for the capillary pressure predictive model for the reservoir interval under study. Neural network analysis of the wireline log data was used to continuously predict pore type proportions downhole. The neural network-derived pore proportions were than applied in constructing wireline log-based capillary pressure curves using the capillary pressure predictive model. This method provides an accurate means of determining capillary pressure behavior from wireline log data and extends the applicability of the limited number of available capillary pressure curves. Once trained, the neural network may be applied to other wells in the field as long as the training set (both rock samples and wireline log types) is representative within the study area. The capillary pressure curves predicted from wireline log data can be used for the same purposes as capillary pressure curves measured on core samples, such as determining water saturation in intervals above and within the transition zone.

  13. G8 Illegal Logging Dialogue G8 Illegal Logging Dialogue

    E-Print Network [OSTI]

    G8 Illegal Logging Dialogue G8 Illegal Logging Dialogue A global legislator partnership for legal International http://www.illegal-logging.info/item_single.php?item=presentation&item_id=133&approach_id=8 #12;G8 Illegal Logging Dialogue Presentation purpose role of GLOBE International aim and objectives of the G8

  14. Measuring water velocity using DIDSON and image cross-correlation techniques

    SciTech Connect (OSTI)

    Deng, Zhiqun; Mueller, Robert P.; Richmond, Marshall C.

    2009-08-01T23:59:59.000Z

    To design or operate hydroelectric facilities for maximum power generation and minimum ecological impact, it is critical to understand the biological responses of fish to different flow structures. However, information is still lacking on the relationship between fish behavior and flow structures despite many years of research. Existing field characterization approaches conduct fish behavior studies and flow measurements separately and coupled later using statistical analysis. These types of studies, however, lack a way to determine the specific hydraulic conditions or the specific causes of the biological response. The Dual-Frequency Identification Sonar (DIDSON) has been in wide use for fish behavior studies since 1999. The DIDSON can detect acoustic targets at long ranges in dark or turbid dark water. PIV is a state-of-the-art, non-intrusive, whole-flow-field technique, providing instantaneous velocity vector measurements in a whole plane using image cross-correlating techniques. There has been considerable research in the development of image processing techniques associated with PIV. This existing body of knowledge is applicable and can be used to process the images taken by the DIDSON. This study was conducted in a water flume which is 9 m long, 1.2 m wide, and 1.2 m deep when filled with water. A lab jet flow was setup as the benchmark flow to calibrate DIDSON images. The jet nozzle was 6.35 cm in diameter and core jet velocity was 1.52 m/s. Different particles were used to seed the flow. The flow was characterized based on the results using Laser Doppler Velocimetry (LDV). A DIDSON was mounted about 5 meters away from the jet nozzle. Consecutive DIDSON images with known time delay were divided into small interrogation spots after background was subtracted. Across-correlation was then performed to estimate the velocity vector for each interrogation spot. The estimated average velocity in the core zone was comparable to that obtained using a LDV. This proof-of-principle project demonstrated the feasibility of extracting water flow velocity information from underwater DIDSON images using image cross-correlation techniques.

  15. Outcrop gamma-ray logging applied to subsurface petroleum geology

    SciTech Connect (OSTI)

    Slatt, R.M.; Borer, J.M.; Horn, B.W. [Colorado School of Mines, Golden, CO (United States)] [and others

    1995-10-01T23:59:59.000Z

    Developing a gamma-ray log profile of an outcrop with a hand-held scintillometer has many applications to subsurface petroleum geology. The outcrop gamma-ray log provides a readily understandable bridge between what is observed in outcrop and what is to be interpreted on well logs and seismic records. Several examples are presented in this paper that demonstrate major applications. An outcrop from the Cretaceous Mesaverde Group in Colorado provides an excellent example of the use of outcrop gamma-ray logs to better visualize spatial variability of depositional settings for improved well log correlations. Out crops from the Cretaceous Almond Formation, Niobrara Formation, and Graneros Shale in Colorado serve as examples of outcrop gamma-ray logging used to correlate outcrops with their subsurface equivalents for improved lithologic and stratigraphic interpretation of well logs. Outcrops of the Cretaceous Sharon Springs Member of the Pierre Shale in Colorado and the Eocene Green River Formation in Wyoming provide examples of the application of outcrop-gamma ray logging to identify and characterize organic-rich shales in outcrops and on well logs. Outcrops of the Pennsylvanian Jackfork Formation in Arkansas demonstrate the use of outcrop logging to yield improved interpretation of reservoir quality on well logs and for one- and two-dimensional seismic modeling. An outcrop of Precambrian and Cambro-Ordovician rocks from Algeria provides an example of outcrop logging to recognize unconformities and other major surfaces on well logs. An outcrop of the Niobrara Formation in Colorado is used as an example for improved understanding of horizontal gamma-ray log response. The example logs presented are all drived with a hand-held scintillometer. This technique is simple, quick, and relatively inexpensive, so is recommended for any outcrop work that is intended to be applied t;o subsurface well logs or seismic interpretation.

  16. Direct imaging of neural currents using ultra-low field magnetic resonance techniques

    DOE Patents [OSTI]

    Volegov, Petr L. (Los Alamos, NM); Matlashov, Andrei N. (Los Alamos, NM); Mosher, John C. (Los Alamos, NM); Espy, Michelle A. (Los Alamos, NM); Kraus, Jr., Robert H. (Los Alamos, NM)

    2009-08-11T23:59:59.000Z

    Using resonant interactions to directly and tomographically image neural activity in the human brain using magnetic resonance imaging (MRI) techniques at ultra-low field (ULF), the present inventors have established an approach that is sensitive to magnetic field distributions local to the spin population in cortex at the Larmor frequency of the measurement field. Because the Larmor frequency can be readily manipulated (through varying B.sub.m), one can also envision using ULF-DNI to image the frequency distribution of the local fields in cortex. Such information, taken together with simultaneous acquisition of MEG and ULF-NMR signals, enables non-invasive exploration of the correlation between local fields induced by neural activity in cortex and more `distant` measures of brain activity such as MEG and EEG.

  17. Characterization of beam dynamics in the APS injector rings using time-resolved imaging techniques

    SciTech Connect (OSTI)

    Yang, B.X.; Lumpkin, A.H.; Borland, M. [and others

    1997-06-01T23:59:59.000Z

    Images taken with streak cameras and gated intensified cameras with both time (longitudinal) and spatial (transverse) resolution reveal a wealth of information about circular accelerators. The authors illustrate a novel technique by a sequence of dual-sweep streak camera images taken at a high dispersion location in the booster synchrotron, where the horizontal coordinate is strongly correlated with the particle energy and the {open_quotes}top-view{close_quotes} of the beam gives a good approximation to the particle density distribution in the longitudinal phase space. A sequence of top-view images taken fight after injection clearly shows the beam dynamics in the phase space. We report another example from the positron accumulator ring for the characterization of its beam compression bunching with the 12th harmonic rf.

  18. NMR logging apparatus

    DOE Patents [OSTI]

    Walsh, David O; Turner, Peter

    2014-05-27T23:59:59.000Z

    Technologies including NMR logging apparatus and methods are disclosed. Example NMR logging apparatus may include surface instrumentation and one or more downhole probes configured to fit within an earth borehole. The surface instrumentation may comprise a power amplifier, which may be coupled to the downhole probes via one or more transmission lines, and a controller configured to cause the power amplifier to generate a NMR activating pulse or sequence of pulses. Impedance matching means may be configured to match an output impedance of the power amplifier through a transmission line to a load impedance of a downhole probe. Methods may include deploying the various elements of disclosed NMR logging apparatus and using the apparatus to perform NMR measurements.

  19. Geothermal Well Logging: Geological Wireline Logs and Fracture Imaging |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdf Jump1946865°,Park,2005)Energy InformationInformationGeothermalOpen

  20. Modes of log gravity

    SciTech Connect (OSTI)

    Bergshoeff, Eric A.; Rosseel, Jan [Centre for Theoretical Physics, University of Groningen, Nijenborgh 4, 9747 AG Groningen (Netherlands); Hohm, Olaf [Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Townsend, Paul K. [Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge, CB3 0WA (United Kingdom)

    2011-05-15T23:59:59.000Z

    The physical modes of a recently proposed D-dimensional 'critical gravity', linearized about its anti-de Sitter vacuum, are investigated. All 'log mode' solutions, which we categorize as 'spin-2' or 'Proca', arise as limits of the massive spin-2 modes of the noncritical theory. The linearized Einstein tensor of a spin-2 log mode is itself a 'nongauge' solution of the linearized Einstein equations whereas the linearized Einstein tensor of a Proca mode takes the form of a linearized general coordinate transformation. Our results suggest the existence of a holographically dual logarithmic conformal field theory.

  1. Logging in to Franklin

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |Is Your HomeLatestCenterLogging in Logging in to Franklin

  2. Application of Image And X-Ray Microtomography Technique To Quantify Filler Distribution In Thermoplastic-Natural Rubber Blend Composites

    SciTech Connect (OSTI)

    Ahmad, Sahrim; Rasid, Rozaidi; Mouad, A. T. [Faculty of Applied Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bandar Baru Bangi, 43000 Kajang (Malaysia); Aziz Mohamed, A.; Abdullah, Jaafar; Dahlan, M.; Mohamad, Mahathir; Jamro, Rafhayudi; Hamzah Harun, M. [Malaysian Nuclear Agency, Bangi, 43000 Kajang (Malaysia); Yazid, Hafizal [Faculty of Applied Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bandar Baru Bangi, 43000 Kajang (Malaysia); Hafizal Yazid, Faculty of Applied Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bandar Baru Bangi, 43000 Kajang (Malaysia); Abdullah, W. Saffiey W.

    2010-01-05T23:59:59.000Z

    X-ray microtomography and ImageJ 1.39 u is used as a tool to quantify volume percentage of B{sub 4}C as fillers in thermoplastic-natural rubber blend composites. The use of percentage of area occupied by fillers as obtain from ImageJ from the microtomography sliced images enables the proposed technique to easily obtain the amount volume percentage of B{sub 4}C in the composite non-destructively. Comparison with other technique such as density measurement and chemical analysis proves the proposed technique as one of the promising approach.

  3. ,"_' ",',-i_~ :FORESTRY AND LOGGING

    E-Print Network [OSTI]

    ":~I> ", .' '. ,"_' ",',-i_~ . :FORESTRY AND LOGGING Hcscarch on Plantation Species A Positive in plantation forestry. par- ticularly in the tropics and the Southern Hemisphere. in the past 30 years plantation forestry. Indeed, one could list many exam- ples of such problems that have plagued exotic

  4. A novel millimeter-wave beam-steering technique using a dielectric-image-line-fed grating film

    E-Print Network [OSTI]

    Rodenbeck, Christopher Timothy

    2001-01-01T23:59:59.000Z

    This thesis introduces a novel, broadband, low-cost technique for beam steering at millimeter-wave frequencies using a moveable grating film fed by dielectric image line. An excellent radiation pattern is maintained over wide scan angles across...

  5. Ultra-fast Imaging of Two-Phase Flow in Structured Monolith Reactors; Techniques and Data Analysis

    E-Print Network [OSTI]

    Heras, Jonathan Jaime

    This thesis will address the use of nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI) techniques to probe the monolith reactor, which consists of a structured catalyst over which reactions may occur. This reactor has emerged...

  6. University of Connecticut Daily Temperature Log Specimen Refrigerator Log

    E-Print Network [OSTI]

    Oliver, Douglas L.

    University of Connecticut Daily Temperature Log Specimen Refrigerator Log Month / Year Clinical ___ Fac. Mgmt. Resolution: 31 ___ Fac. Mgmt. Resolution: If the refrigerator temperature falls out refrigerator. This record must be kept for one year and then destroyed per State requirement

  7. NMR imaging techniques and applications in the flow behavior of fluids in porous media

    E-Print Network [OSTI]

    Halimi, Hassan I

    1990-01-01T23:59:59.000Z

    proton magnetic resonance technique can be used to determine the oil saturation in the pores of a rock. The NMR system can produce images of the molecules under investigation because the signals recorded are obtained directly from fluids contained... in liquids as well. This should enable us to obtain additional information about the fluids in the rock '4. Spin-spin relaxation has a characteristic time T~. T~ is the time constant for the decay of the precessing R-Zo component of the magnetization...

  8. Image-Guided Techniques Improve the Short-term Outcome of Autologous Osteochondral Cartilage Repair Surgeries -An

    E-Print Network [OSTI]

    Stewart, James

    Image-Guided Techniques Improve the Short-term Outcome of Autologous Osteochondral Cartilage Repair and deliver osteochondral grafts remains problematic. We investigated whether image-guided methods (optically-guided and template-guided) can improve the outcome of mo- saic arthroplasty procedures. Methods: Fifteen sheep were

  9. NERSC Job Logs and Analytics

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

    For Users Job Logs & Analytics Job Logs & Analytics Queue Status A listing of jobs running and waiting in the queues (NERSC login required). Queue Wait Times Batch Queue Wait...

  10. Log data comparison and quantification

    SciTech Connect (OSTI)

    Mathews, M.; LaDelfe, C.

    1981-01-01T23:59:59.000Z

    Two geothermal wells were logged with similar wireline logs by several logging companies in a period of five years (1974 to 1979). The results of these equivalent logs are quantitatively different and in some cases qualitatively different. This difference also occurs between the same type of logs recorded at different time intervals by the same logging company. These various log data are related and qualified when logging equipment has not been properly calibrated. All depths referred to for either well are from their respective kelly bushing (KB). The first well (Mesa 31-1) is in the Imperial Valley of California and penetrates a sand, shale, and clay sedimentary lithology with a maximum temperature of 165/sup 0/C (330/sup 0/F) and a total depth of 1882 m (6175 ft). The second well (Phillips 9-1) is in the Roosevelt Hot Springs known geothermal resource areas (KGRA) of southwestern Utah and penetrates hydrothermally altered (low-grade metamorphic) and igneous lithology with a maximum temperature of 225/sup 0/C (440/sup 0/F) and a toatl depth of 2098.5 m (6885 ft). During that period (1974 to 1979) calibration of logging equipment in metamorphic and igneous lithologies could not be done. The logging data from this well is not qualitatively comparable in all cases and indicates the need for calibration. The open-hole log data acquired from Mesa 31-1 and Phillips 9-1 wells were compared to core data from these wells and comparison factors were calculated to better quantify the open-hole log data. Then open-hole log data were compared to the cased-hole log data from various companies and additional comparison factors were calculated for the cased-hole log data. These comparison factors allow for some quantification of these uncalibrated log data.

  11. Grid Logging: Best Practices Guide

    SciTech Connect (OSTI)

    Tierney, Brian L; Tierney, Brian L; Gunter, Dan

    2008-04-01T23:59:59.000Z

    The purpose of this document is to help developers of Grid middleware and application software generate log files that will be useful to Grid administrators, users, developers and Grid middleware itself. Currently, most of the currently generated log files are only useful to the author of the program. Good logging practices are instrumental to performance analysis, problem diagnosis, and security auditing tasks such as incident tracing and damage assessment. This document does not discuss the issue of a logging API. It is assumed that a standard log API such as syslog (C), log4j (Java), or logger (Python) is being used. Other custom logging API or even printf could be used. The key point is that the logs must contain the required information in the required format. At a high level of abstraction, the best practices for Grid logging are: (1) Consistently structured, typed, log events; (2) A standard high-resolution timestamp; (3) Use of logging levels and categories to separate logs by detail and purpose; (4) Consistent use of global and local identifiers; and (5) Use of some regular, newline-delimited ASCII text format. The rest of this document describes each of these recommendations in detail.

  12. Australian Government on ILLEGAL logging

    E-Print Network [OSTI]

    Australian Government the AXE on ILLEGAL logging Bringing down a practical approach AN AUSTRALIAN. NOVEMBER 2006 #12;#12;Foreword Illegal logging corrupts the trade in timber-based products and inevitably management of the world's forest resources. Therefore, it is in Australia's interests to stop illegal logging

  13. Characterization of Porosity Development in Oxidized Graphite using Automated Image Analysis Techniques

    SciTech Connect (OSTI)

    Contescu, Cristian I [ORNL; Burchell, Timothy D [ORNL

    2009-09-01T23:59:59.000Z

    This document reports on initial activities at ORNL aimed at quantitative characterization of porosity development in oxidized graphite specimens using automated image analysis (AIA) techniques. A series of cylindrical shape specimens were machined from nuclear-grade graphite (type PCEA, from GrafTech International). The specimens were oxidized in air to various levels of weight loss (between 5 and 20 %) and at three oxidation temperatures (between 600 and 750 oC). The procedure used for specimen preparation and oxidation was based on ASTM D-7542-09. Oxidized specimens were sectioned, resin-mounted and polished for optical microscopy examination. Mosaic pictures of rectangular stripes (25 mm x 0.4 mm) along a diameter of sectioned specimens were recorded. A commercial software (ImagePro) was evaluated for automated analysis of images. Because oxidized zones in graphite are less reflective in visible light than the pristine, unoxidized material, the microstructural changes induced by oxidation can easily be identified and analyzed. Oxidation at low temperatures contributes to development of numerous fine pores (< 100 m2) distributed more or less uniformly over a certain depth (5-6 mm) from the surface of graphite specimens, while causing no apparent external damage to the specimens. In contrast, oxidation at high temperatures causes dimensional changes and substantial surface damage within a narrow band (< 1 mm) near the exposed graphite surface, but leaves the interior of specimens with little or no changes in the pore structure. Based on these results it appears that weakening and degradation of mechanical properties of graphite materials produced by uniform oxidation at low temperatures is related to the massive development of fine pores in the oxidized zone. It was demonstrated that optical microscopy enhanced by AIA techniques allows accurate determination of oxidant penetration depth and of distribution of porosity in oxidized graphite materials.

  14. Developing new optical imaging techniques for single particle and molecule tracking in live cells

    SciTech Connect (OSTI)

    Sun, Wei

    2010-12-15T23:59:59.000Z

    Differential interference contrast (DIC) microscopy is a far-field as well as wide-field optical imaging technique. Since it is non-invasive and requires no sample staining, DIC microscopy is suitable for tracking the motion of target molecules in live cells without interfering their functions. In addition, high numerical aperture objectives and condensers can be used in DIC microscopy. The depth of focus of DIC is shallow, which gives DIC much better optical sectioning ability than those of phase contrast and dark field microscopies. In this work, DIC was utilized to study dynamic biological processes including endocytosis and intracellular transport in live cells. The suitability of DIC microscopy for single particle tracking in live cells was first demonstrated by using DIC to monitor the entire endocytosis process of one mesoporous silica nanoparticle (MSN) into a live mammalian cell. By taking advantage of the optical sectioning ability of DIC, we recorded the depth profile of the MSN during the endocytosis process. The shape change around the nanoparticle due to the formation of a vesicle was also captured. DIC microscopy was further modified that the sample can be illuminated and imaged at two wavelengths simultaneously. By using the new technique, noble metal nanoparticles with different shapes and sizes were selectively imaged. Among all the examined metal nanoparticles, gold nanoparticles in rod shapes were found to be especially useful. Due to their anisotropic optical properties, gold nanorods showed as diffraction-limited spots with disproportionate bright and dark parts that are strongly dependent on their orientation in the 3D space. Gold nanorods were developed as orientation nanoprobes and were successfully used to report the self-rotation of gliding microtubules on kinesin coated substrates. Gold nanorods were further used to study the rotational motions of cargoes during the endocytosis and intracellular transport processes in live mammalian cells. New rotational information was obtained: (1) during endocytosis, cargoes lost their rotation freedom at the late stage of internalization; (2) cargoes performed train-like motion when they were transported along the microtubule network by motor proteins inside live cells; (3) During the pause stage of fast axonal transport, cargoes were still bound to the microtubule tracks by motor proteins. Total internal reflection fluorescence microscopy (TIRFM) is another non-invasive and far-field optical imaging technique. Because of its near-field illumination mechanism, TIRFM has better axial resolution than epi-fluorescence microscopy and confocal microscopy. In this work, an auto-calibrated, prism type, angle-scanning TIRFM instrument was built. The incident angle can range from subcritical angles to nearly 90{sup o}, with an angle interval less than 0.2{sup o}. The angle precision of the new instrument was demonstrated through the finding of the surface plasmon resonance (SPR) angle of metal film coated glass slide. The new instrument improved significantly the precision in determining the axial position. As a result, the best obtained axial resolution was {approx} 8 nm, which is better than current existing instruments similar in function. The instrument was further modified to function as a pseudo TIRF microscope. The illumination depth can be controlled by changing the incident angle of the excitation laser beam or adjusting the horizontal position of the illumination laser spot on the prism top surface. With the new technique, i.e., variable-illumination-depth pseudo TIRF microscopy, the whole cell body from bottom to top was scanned.

  15. Grid Logging: Best Practices Guide

    E-Print Network [OSTI]

    Tierney, Brian L

    2008-01-01T23:59:59.000Z

    Revision date: March 1, 2008 Grid Logging: Best Practicesis to help developers of Grid middleware and applicationlog files that will be useful to Grid administrators, users,

  16. LOG HAZARD REGRESSION Huiying Sun

    E-Print Network [OSTI]

    Heckman, Nancy E.

    LOG HAZARD REGRESSION by Huiying Sun Ph.D, Harbin Institute of Technology, Harbin, CHINA, 1991 regression splines to estimate the two log marginal hazard func tions of bivariate survival times, where, 1995) hazard regression for estimating a univariate survival time. We derive an approach to find

  17. Acoustic paramagnetic logging tool

    DOE Patents [OSTI]

    Vail, III, William B. (Bothell, WA)

    1988-01-01T23:59:59.000Z

    New methods and apparatus are disclosed which allow measurement of the presence of oil and water in geological formations using a new physical effect called the Acoustic Paramagnetic Logging Effect (APLE). The presence of petroleum in formation causes a slight increase in the earth's magnetic field in the vicinity of the reservoir. This is the phenomena of paramagnetism. Application of an acoustic source to a geological formation at the Larmor frequency of the nucleons present causes the paramagnetism of the formation to disappear. This results in a decrease in the earth3 s magnetic field in the vicinity of the oil bearing formation. Repetitively frequency sweeping the acoustic source through the Larmor frequency of the nucleons present (approx. 2 kHz) causes an amplitude modulation of the earth's magnetic field which is a consequence of the APLE. The amplitude modulation of the earth's magnetic field is measured with an induction coil gradiometer and provides a direct measure of the amount of oil and water in the excitation zone of the formation . The phase of the signal is used to infer the longitudinal relaxation times of the fluids present, which results in the ability in general to separate oil and water and to measure the viscosity of the oil present. Such measurements may be preformed in open boreholes and in cased well bores.

  18. Zero source insertion technique to account for undersampling in GPR imaging

    DOE Patents [OSTI]

    Chambers, David H; Mast, Jeffrey E; Paglieroni, David W

    2014-02-25T23:59:59.000Z

    A method and system for detecting the presence of subsurface objects within a medium is provided. In some embodiments, the imaging and detection system operates in a multistatic mode to collect radar return signals generated by an array of transceiver antenna pairs that is positioned across the surface and that travels down the surface. The imaging and detection system pre-processes the return signal to suppress certain undesirable effects. The imaging and detection system then generates synthetic aperture radar images from real aperture radar images generated from the pre-processed return signal. The imaging and detection system then post-processes the synthetic aperture radar images to improve detection of subsurface objects. The imaging and detection system identifies peaks in the energy levels of the post-processed image frame, which indicates the presence of a subsurface object.

  19. Development of algorithms for capacitance imaging techniques for fluidized bed flow fields

    SciTech Connect (OSTI)

    Loudin, W.J.

    1991-01-01T23:59:59.000Z

    The objective of this research is to provide support for the instrumentation concept of a High Resolution Capacitance Imaging System (HRCIS). The work involves the development and evaluation of the mathematical theory and associated models and algorithms which reduce the electronic measurements to valid physical characterizations. The research and development require the investigation of techniques to solve large systems of equations based on capacitance measurements for various electrode configurations in order to estimate densities of materials in a cross-section of a fluidized bed. Capacitance measurements are made for 400 connections of the 32-electrode system; 400 corresponding electric-field curves are constructed by solving a second order partial differential equation. These curves are used to partition the circular disk into 193 regions called pixels, and the density of material in each pixel is to be estimated. Two methods of approximating densities have been developed and consideration of a third method has been initiated. One method (Method 1) is based on products of displacement currents for intersecting electric-field curves on a cross section. For each pixel one point of intersection is chosen, and the product of the capacitance measurements is found. Both the product and the square-root-of-product seem to yield good relative distribution of densities.

  20. Development of algorithms for capacitance imaging techniques for fluidized bed flow fields. 1990 Annual report

    SciTech Connect (OSTI)

    Loudin, W.J.

    1991-01-01T23:59:59.000Z

    The objective of this research is to provide support for the instrumentation concept of a High Resolution Capacitance Imaging System (HRCIS). The work involves the development and evaluation of the mathematical theory and associated models and algorithms which reduce the electronic measurements to valid physical characterizations. The research and development require the investigation of techniques to solve large systems of equations based on capacitance measurements for various electrode configurations in order to estimate densities of materials in a cross-section of a fluidized bed. Capacitance measurements are made for 400 connections of the 32-electrode system; 400 corresponding electric-field curves are constructed by solving a second order partial differential equation. These curves are used to partition the circular disk into 193 regions called pixels, and the density of material in each pixel is to be estimated. Two methods of approximating densities have been developed and consideration of a third method has been initiated. One method (Method 1) is based on products of displacement currents for intersecting electric-field curves on a cross section. For each pixel one point of intersection is chosen, and the product of the capacitance measurements is found. Both the product and the square-root-of-product seem to yield good relative distribution of densities.

  1. Ground-Based Demonstration of Imaging Fourier Transform Spectrometry and Techniques

    SciTech Connect (OSTI)

    Wurtz, R; Cook,K H; Bennett, C L; Bixler, J; Carr, D; Wishnow, E H

    1999-10-26T23:59:59.000Z

    We present results from a four-port Michelson interferometer built to demonstrate imaging Fourier transform spectroscopy for astronomical applications.

  2. Information Security Office Logging Standard

    E-Print Network [OSTI]

    Alpay, S. Pamir

    All Approvals Review Date Reviewed By Name/Title Action (Reviewed or Approved) 6/01/2013 CISO Jason Pufahl, CISO Approved 6/01/2013 RMAC Risk Management Advisory Council Reviewed #12;Logging Standard 2 | P

  3. Microsoft Word - NETL-TRS-6-2014_Imaging Techniques Applied to...

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

    those of the United States Government or any agency thereof. Cover Illustration: Scanning electron microscopy (SEM) image of organic grain in Marcellus Shale taken with...

  4. Log quality enhancement: A systematic assessment of logging company wellsite performance and log quality

    SciTech Connect (OSTI)

    Farnan, R.A.; Mc Hattie, C.M.

    1984-01-01T23:59:59.000Z

    To improve the monitoring of logging company performance, computer programs were developed to assess information en masse from log quality check lists completed on wellsite by the service company engineer and Phillips representative. A study of all logging jobs performed by different service companies for Phillips in Oklahoma (panhandle excepted) during 1982 enabled several pertinent and beneficial interpretations to be made. Company A provided the best tool and crew service. Company B incurred an excessive amount of lost time related to tool failure, in particular the neutron-density tool combination. Company C, although used only three times, incurred no lost time. With a reasonable data base valid conclusions were made pertaining, for example, to repeated tool malfunctions. The actual logs were then assessed for quality.

  5. Development of a Navigator and Imaging Techniques for the Cryogenic Dark Matter Search Detectors

    SciTech Connect (OSTI)

    Wilen, Chris; /Carleton Coll. /KIPAC, Menlo Park

    2011-06-22T23:59:59.000Z

    This project contributes to the detection of flaws in the germanium detectors for the Cryogenic Dark Matter Search (CDMS) experiment. Specifically, after imaging the detector surface with a precise imaging and measuring device, they developed software to stitch the resulting images together, applying any necessary rotations, offsets, and averaging, to produce a smooth image of the whole detector that can be used to detect flaws on the surface of the detector. These images were also tiled appropriately for the Google Maps API to use as a navigation tool, allowing viewers to smoothly zoom and pan across the detector surface. Automated defect identification can now be implemented, increasing the scalability of the germanium detector fabrication.

  6. Abstract--Conventional ultrasound B-mode imaging is mainly qualitative in nature. While conventional imaging techniques,

    E-Print Network [OSTI]

    Illinois at Urbana-Champaign, University of

    and assessment of thermal therapy on solid tumors. Index Terms--Backscatter coefficients, envelope statistics including spectral-based parameterization, elastography, flow estimation and envelope statistics will be discussed in this paper. Specifically, spectral-based techniques and envelope statistics at clinical

  7. Radiation exposure in X-ray-based imaging techniques used in osteoporosis

    E-Print Network [OSTI]

    Damilakis, John; Adams, Judith E.; Guglielmi, Giuseppe; Link, Thomas M.

    2010-01-01T23:59:59.000Z

    techniques used in osteoporosis Received: 10 December 2009vertebral fracture in osteoporosis. Osteoporos Int 5.for postmenopausal osteoporosis: a review of the evidence

  8. How to Find More Supernovae with Less Work: Object Classification Techniques for Difference Imaging

    E-Print Network [OSTI]

    Bailey, Stephen; Aragon, Cecilia; Romano, Raquel; Thomas, Rollin C.; Weaver, Benjamin A.; Wong, Daniel

    2007-01-01T23:59:59.000Z

    How to Find More Supernovae with Less Work: Object Classi?methods: statistical supernovae: general techniques:for objects such as supernovae, active galactic nuclei,

  9. Fatigue testing of high-density polyethylene and polycarbonate with crack length measurement using image processing techniques

    SciTech Connect (OSTI)

    Riemslag, A.C. (Delft Univ. of Technology (Netherlands). Lab. of Materials Science)

    1994-09-01T23:59:59.000Z

    A new automated method of measuring fatigue cracks in polymers is discussed. The new method is based on a video signal of the crack which is analyzed with image processing techniques. With this technique the crack length is measured every 20 s during a fatigue test. The accuracy of one single measurement is about 0.05 mm, but this can be increased by averaging a large number of measurements. The applied automated data collection and subsequent data processing is discussed in relation to the recommendations given in ASTM E 647, Test method for Measurement of Fatigue Crack Growth Rates. The use of the new technique is illustrated on the basis of fatigue tests performed on transparent polycarbonate (PC) and nontransparent polyethylene (PE). The fatigue behavior of PE and PC is briefly discussed.

  10. Capabilities and limitations of Phase Contrast Imaging techniques with X-rays and neutrons

    E-Print Network [OSTI]

    Damato, Antonio Leonardo

    2009-01-01T23:59:59.000Z

    Phase Contrast Imaging (PCI) was studied with the goal of understanding its relevance and its requirements. Current literature does not provide insight on the effect of a relaxation in coherence requirements on the PCI ...

  11. 2D electron temperature diagnostic using soft x-ray imaging technique

    SciTech Connect (OSTI)

    Nishimura, K., E-mail: nishim11@nuclear.es.kit.ac.jp; Sanpei, A., E-mail: sanpei@kit.ac.jp; Tanaka, H.; Ishii, G.; Kodera, R.; Ueba, R.; Himura, H.; Masamune, S. [Department of Electronics, Kyoto Institute of Technology, Kyoto 606-8585 (Japan)] [Department of Electronics, Kyoto Institute of Technology, Kyoto 606-8585 (Japan); Ohdachi, S.; Mizuguchi, N. [National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292 (Japan)] [National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292 (Japan)

    2014-03-15T23:59:59.000Z

    We have developed a two-dimensional (2D) electron temperature (T{sub e}) diagnostic system for thermal structure studies in a low-aspect-ratio reversed field pinch (RFP). The system consists of a soft x-ray (SXR) camera with two pin holes for two-kinds of absorber foils, combined with a high-speed camera. Two SXR images with almost the same viewing area are formed through different absorber foils on a single micro-channel plate (MCP). A 2D T{sub e} image can then be obtained by calculating the intensity ratio for each element of the images. We have succeeded in distinguishing T{sub e} image in quasi-single helicity (QSH) from that in multi-helicity (MH) RFP states, where the former is characterized by concentrated magnetic fluctuation spectrum and the latter, by broad spectrum of edge magnetic fluctuations.

  12. An iterative technique for refinement of selective excitations for magnetic resonance imaging

    E-Print Network [OSTI]

    Lebsack, Eliot Todd

    1999-01-01T23:59:59.000Z

    Selective RF pulses are needed or many application in magnetic resonance imaging (MRI). The desired excitation profile is omen used as the spectrum of the applied RF pulse; the modulation waveform of the RF pulse which approximately excites...

  13. Numerical simulation of borehole acoustic logging in the frequency and time domains with hp-adaptive finite elements

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    and for the improvement of acoustic logging techniques used by oil- and oil-service companies to detect and quantifyNumerical simulation of borehole acoustic logging in the frequency and time domains with hp Available online 8 January 2009 Keywords: Acoustic logging Borehole acoustics Wave propagation Linear

  14. LogRank: Summarizing Social Activity Logs Abhijith Kashyap

    E-Print Network [OSTI]

    Hristidis, Vagelis

    of Barack Obama (managed by his re-election campaign staff). Figure 1 shows a small selection of posts from network profile. With time, the activity logs of users, which record the sequences of social activities in most OSNs, records and displays users' activities (e.g., posts, status updates, comments). The Wall

  15. LogOS: an Automatic Logging Framework for Service-Oriented Architectures

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    LogOS: an Automatic Logging Framework for Service-Oriented Architectures Stphane Frnot Universit our investigations on an automated log-based architec- ture called LogOS, focused on service component-based systems called LogOS, applied to OSGi environments. We believe that services such as found

  16. Daily Log 2009 December 2009

    E-Print Network [OSTI]

    Boyce, Richard L.

    , camcorder and typing machine taken from unlocked cabinet. Report #: 2009-00644 Reported: 12/14/09 1813Daily Log 2009 December 2009 No Reportable Activity on 12/31/09 Report #: 2009-00652 Reported: 12/30/09 2106 Occurred: Same Incident: Parking Complaint Location: Woodcrest Parking Lot Disposition: Report

  17. Logging Equipment and Loren Kellogg

    E-Print Network [OSTI]

    and the control is passed on Automatic inhaul starts and the control is transferred again Photo Credit: KollerLogging Equipment and Systems Loren Kellogg Forest Engineering Resources and Management Oregon Equipment and Systems Presentation Outline Overview of equipment and systems for thinning Costs

  18. briefing paper Controlling Illegal Logging

    E-Print Network [OSTI]

    page1 briefing paper Controlling Illegal Logging: Implementation of the EU Timber Regulation Jon placing illegally harvested timber and timber products on the European market. It adopts a broad definition of `illegally harvested' and applies to timber both imported into and produced within the EU

  19. Fluid-Rock Characterization and Interactions in NMR Well Logging

    SciTech Connect (OSTI)

    Hirasaki, George J.; Mohanty, Kishore, K.

    2001-07-13T23:59:59.000Z

    The objective of this project is to characterize the fluid properties and fluid-rock interactions that are needed for formation evaluation by NMR well logging. This is the first annual progress report submitted to the DOE. It reports on the work completed during the reporting period even if it may have started before this period. This project is a partnership between Professor George J. Hirasaki at Rice University and Professor Kishore Mohanty at University of Houston. In addition to the DOE, this project is supported by a consortium of oil companies and service companies. The fluid properties characterization has emphasized the departure of live oils from correlations based on dead oils. Also, asphaltic components can result in a difference between the T1 and T2 relaxation time distributions as well as reduce the hydrogen index. The fluid rock characterizations that are reported here are the effects of wettability and internal magnetic field gradients. A pore reconstruction method ha s been developed to recreate three-dimensional porous media from two-dimensional images that reproduce some of their key statistical properties. A Monte Carlo simulation technique has been developed to calculate the magnetization decay in fluid saturated porous media given their pore structure.

  20. Development of Automatic Techniques for Segmentation of Brain Tissues fromMultispectral MR Images

    E-Print Network [OSTI]

    by radiofrequency inhomogeneity acrossfield-of-view; (2) strip- ping away image pixels which represent skull. 0-7803-2544-3195 $4.00 0 1995 IEEE 1453 matters, in addition to low radiation and multispectral is extended to investigate the automation of (a) correc- tion for radiofrequency (RF)inhomogeneity across

  1. A STEREO-BASED TECHNIQUE FOR THE REGISTRATION OF COLOR AND LADAR IMAGES

    E-Print Network [OSTI]

    Abidi, Mongi A.

    In many remote robotic tasks involving tele-operation, operator performance is enhanced by integrating difficulty in designing such a multi-sensor system is the development of methods for combining the various position in the Imaging, Robotics and Intelligent Systems laboratory and to Dr. R. C. Gonzales for choosing

  2. SEM technique for imaging and measuring electronic transport in nanocomposites based on electric field induced contrast

    DOE Patents [OSTI]

    Jesse, Stephen (Knoxville, TN) [Knoxville, TN; Geohegan, David B. (Knoxville, TN) [Knoxville, TN; Guillorn, Michael (Brooktondale, NY) [Brooktondale, NY

    2009-02-17T23:59:59.000Z

    Methods and apparatus are described for SEM imaging and measuring electronic transport in nanocomposites based on electric field induced contrast. A method includes mounting a sample onto a sample holder, the sample including a sample material; wire bonding leads from the sample holder onto the sample; placing the sample holder in a vacuum chamber of a scanning electron microscope; connecting leads from the sample holder to a power source located outside the vacuum chamber; controlling secondary electron emission from the sample by applying a predetermined voltage to the sample through the leads; and generating an image of the secondary electron emission from the sample. An apparatus includes a sample holder for a scanning electron microscope having an electrical interconnect and leads on top of the sample holder electrically connected to the electrical interconnect; a power source and a controller connected to the electrical interconnect for applying voltage to the sample holder to control the secondary electron emission from a sample mounted on the sample holder; and a computer coupled to a secondary electron detector to generate images of the secondary electron emission from the sample.

  3. Evaluating imaging biomarkers for neurodegeneration in pre-symptomatic Huntington's disease using machine learning techniques

    E-Print Network [OSTI]

    Aron, Adam

    data, we applied multivariate pattern analysis techniques to several derived voxel-based and segmented e, a Department of Neuroscience, University of California Los Angeles, Los Angeles, CA, USA b of Psychology, University of California Los Angeles, Los Angeles, CA, USA d Department of Psychology, University

  4. Chemical logging of geothermal wells

    DOE Patents [OSTI]

    Allen, Charles A. (Idaho Falls, ID); McAtee, Richard E. (Idaho Falls, ID)

    1981-01-01T23:59:59.000Z

    The presence of geothermal aquifers can be detected while drilling in geothermal formations by maintaining a chemical log of the ratio of the concentrations of calcium to carbonate and bicarbonate ions in the return drilling fluid. A continuous increase in the ratio of the concentrations of calcium to carbonate and bicarbonate ions is indicative of the existence of a warm or hot geothermal aquifer at some increased depth.

  5. Tucker Wireline Open Hole Wireline Logging

    SciTech Connect (OSTI)

    Milliken, M.

    2002-05-23T23:59:59.000Z

    The Tucker Wireline unit ran a suite of open hole logs right behind the RMOTC logging contractor for comparison purposes. The tools included Dual Laterolog, Phased Induction, BHC Sonic, and Density-Porosity.

  6. Geological well log analysis. Third ed

    SciTech Connect (OSTI)

    Pirson, S.J.

    1983-01-01T23:59:59.000Z

    Until recently, well logs have mainly been used for correlation, structural mapping, and quantitive evaluation of hydrocarbon bearing formations. This third edition of Geologic Well Log Analysis, however, describes how well logs can be used for geological studies and mineral exploration. This is done by analyzing well logs for numerous parameters and indices of significant mineral accumulation, primarily in sediments. Contents are: SP and Eh curves as redoxomorphic logs; sedimentalogical studies by log curve shapes; exploration for stratigraphic traps; continuous dipmeter as a structural tool; continuous dipmeter as a sedimentation tool; Paleo-facies logging and mapping; hydrogeology 1--hydrodynamics of compaction; hydrogeology 2--geostatic equilibrium; and hydrogeology 3--hydrodynamics of infiltration. Appendixes cover: Computer program for calculating the dip magnitude, azimuth, and the degree and orientation of the resistivity anisotrophy; a lithology computer program for calculating the curvature of a structure; and basic log analysis package for HP-41CV programmable calculator.

  7. Energy Citations Database (ECD) - Alerts Log On

    Office of Scientific and Technical Information (OSTI)

    Log On You must Log On to use the ECD Alerts. Alerts provide users with e-mail notification of updates to the ECD in specific areas of interest. If you wish to receive an Alert and...

  8. Cased-hole evaluation with the chlorine log

    SciTech Connect (OSTI)

    Deimel, J.; Andrus, D.

    1984-09-01T23:59:59.000Z

    Typical problems faced by operators in the Gulf of Mexico are the evaluation of low resistive potentially productive zones and depleted zones behind pipe. Tenneco Oil Company has used the chlorine logging system to solve these problems in numerous wells and several case studies are presented. The chlorine logging system is a neutroncapture spectral measurement and analysis technique which provides a quantitative, lithology-independent water saturation (Sw) interpretation. Water saturation is derived from the measured spectral response, formation porosity, formation water salinity, and wellbore geometry. No corrections for borehole fluid or shale volume are necessary. This logging system demonstrates its usefulness in evaluating low resistivity pay zones and evaluating water movement within producing and/or produced zones.

  9. A Voluntary Breath-Hold Treatment Technique for the Left Breast With Unfavorable Cardiac Anatomy Using Surface Imaging

    SciTech Connect (OSTI)

    Gierga, David P., E-mail: dgierga@partners.org [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States); Harvard Medical School, Boston, Massachusetts (United States); Turcotte, Julie C. [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States)] [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States); Sharp, Gregory C. [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States) [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States); Harvard Medical School, Boston, Massachusetts (United States); Sedlacek, Daniel E.; Cotter, Christopher R. [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States)] [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States); Taghian, Alphonse G. [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States) [Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts (United States); Harvard Medical School, Boston, Massachusetts (United States)

    2012-12-01T23:59:59.000Z

    Purpose: Breath-hold (BH) treatments can be used to reduce cardiac dose for patients with left-sided breast cancer and unfavorable cardiac anatomy. A surface imaging technique was developed for accurate patient setup and reproducible real-time BH positioning. Methods and Materials: Three-dimensional surface images were obtained for 20 patients. Surface imaging was used to correct the daily setup for each patient. Initial setup data were recorded for 443 fractions and were analyzed to assess random and systematic errors. Real time monitoring was used to verify surface placement during BH. The radiation beam was not turned on if the BH position difference was greater than 5 mm. Real-time surface data were analyzed for 2398 BHs and 363 treatment fractions. The mean and maximum differences were calculated. The percentage of BHs greater than tolerance was calculated. Results: The mean shifts for initial patient setup were 2.0 mm, 1.2 mm, and 0.3 mm in the vertical, longitudinal, and lateral directions, respectively. The mean 3-dimensional vector shift was 7.8 mm. Random and systematic errors were less than 4 mm. Real-time surface monitoring data indicated that 22% of the BHs were outside the 5-mm tolerance (range, 7%-41%), and there was a correlation with breast volume. The mean difference between the treated and reference BH positions was 2 mm in each direction. For out-of-tolerance BHs, the average difference in the BH position was 6.3 mm, and the average maximum difference was 8.8 mm. Conclusions: Daily real-time surface imaging ensures accurate and reproducible positioning for BH treatment of left-sided breast cancer patients with unfavorable cardiac anatomy.

  10. High-speed spiral imaging technique for an atomic force microscope using a linear quadratic Gaussian controller

    SciTech Connect (OSTI)

    Habibullah, H., E-mail: h.habib@student.adfa.edu.au; Pota, H. R., E-mail: h.pota@adfa.edu.au; Petersen, I. R., E-mail: i.petersen@adfa.edu.au [School of Engineering and Information Technology, University of New South Wales, Canberra, Australian Capital Territory 2612 (Australia)

    2014-03-15T23:59:59.000Z

    This paper demonstrates a high-speed spiral imaging technique for an atomic force microscope (AFM). As an alternative to traditional raster scanning, an approach of gradient pulsing using a spiral line is implemented and spirals are generated by applying single-frequency cosine and sine waves of slowly varying amplitudes to the X and Y-axes of the AFMs piezoelectric tube scanner (PTS). Due to these single-frequency sinusoidal input signals, the scanning process can be faster than that of conventional raster scanning. A linear quadratic Gaussian controller is designed to track the reference sinusoid and a vibration compensator is combined to damp the resonant mode of the PTS. An internal model of the reference sinusoidal signal is included in the plant model and an integrator for the system error is introduced in the proposed control scheme. As a result, the phase error between the input and output sinusoids from the X and Y-PTSs is reduced. The spirals produced have particularly narrow-band frequency measures which change slowly over time, thereby making it possible for the scanner to achieve improved tracking and continuous high-speed scanning rather than being restricted to the back and forth motion of raster scanning. As part of the post-processing of the experimental data, a fifth-order Butterworth filter is used to filter noises in the signals emanating from the position sensors and a Gaussian image filter is used to filter the images. A comparison of images scanned using the proposed controller (spiral) and the AFM PI controller (raster) shows improvement in the scanning rate using the proposed method.

  11. Indonesia to fight illegal logging Kurniawan Hari

    E-Print Network [OSTI]

    Indonesia to fight illegal logging Kurniawan Hari The government should set up a task force to deal with rampant illegal logging, mining and poaching, which are causing billions of dollars in state losses hearing on security affairs on Wednesday. Ermaya estimated the loss from illegal logging at US$3.5 billion

  12. Annual Logging Symposium, June 21-24, 2009 HISTORY MATCHING OF MULTIPHASE-FLOW FORMATION-

    E-Print Network [OSTI]

    Torres-Verdn, Carlos

    SPWLA 50th Annual Logging Symposium, June 21-24, 2009 1 HISTORY MATCHING OF MULTIPHASE-phase analytical techniques. We describe the successful application of a three- dimensional (3D) multiphase

  13. Combating Illegal LoggingCombating Illegal Logging in Russia:in Russia

    E-Print Network [OSTI]

    lease agreements and stop all logging permissions for these companies. The Russian Far East #12;ResultsCombating Illegal LoggingCombating Illegal Logging in Russia:in Russia: Case study ofCase study and not only `be aware' of illegal logging · G8-related political work #12;Primorsky region: 2000 Initial

  14. Combating Illegal LoggingCombating Illegal Logging in Russia:in Russia

    E-Print Network [OSTI]

    agreements and stop all logging permissions for these companies. The Russian Far East #12;Results: · directCombating Illegal LoggingCombating Illegal Logging in Russia:in Russia: Case study ofCase study aware' of illegal logging · G8-related political work #12;Primorsky region: 2000 Initial information

  15. Illegal logging threatens Congo's forests, global climate Illegal logging threatens Congo's forests, global climate

    E-Print Network [OSTI]

    contracts with logging companies covering more than 15 million hectares of forest," the report stated with logging companies instead giving villages gifts of salt and beer worth less than $100. "In a contextIllegal logging threatens Congo's forests, global climate Illegal logging threatens Congo's forests

  16. The Impact of the Russian Log Export Tariff on the Global Market for Logs and Lumber

    E-Print Network [OSTI]

    The Impact of the Russian Log Export Tariff on the Global Market for Logs and Lumber CINTRAFOR News is available on the web: http://www.cintrafor.org Russian Tariff continued on page 3 In This Issue: Director announced its plan to implement a series of log export tariffs designed to reduce the export of raw logs

  17. Illegal timber logging in Vietnam: Who profits from forest privatization connected with a logging ban?

    E-Print Network [OSTI]

    1 Illegal timber logging in Vietnam: Who profits from forest privatization connected with a logging the distribution of income from illegal timber logging in northern Vietnam. The Vietnamese government implemented because of the demand for timber in lowland markets, illegal timber logging still takes place in many

  18. Log interpretation of shaly sandstones

    E-Print Network [OSTI]

    Baker, Joel Foster

    1987-01-01T23:59:59.000Z

    and Gas, Arco Oil and Gas, and Sun Oil Companies for their contributions of cores, logs, and other valuable data. Their contributions were an immense help in formulating and supporting the ideas developed in my study. I also wish to express gratitute... of Water Saturation page . . 78 79 . . 81 . 87 91 93 VI CONCLUSIONS . 104 REFERENCES CITED APPENDIX I REESE INTRACOASTAL LAND ?2 DATA . 107 . . 111 APPENDIX II ARCO HANKAMER 630 ? 1 DATA 133 APPENDIX III SUN SMITH JR. ?8 DATA VITA 152 163...

  19. Mud Logging | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRose BendMiasole IncMinutemanVistaZephyr)Mountain AirPeakMubadalaLogging

  20. Neutron Log | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRoseConcerns Jump to:Neppel Wind Power ProjectNeutron Log Jump to:

  1. Density Log | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOE Facility DatabaseMichigan: Energy ResourcesDenair,Dennis Port,1987) |FishLog

  2. Request Log Closedl Date Yes

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's PossibleRadiation Protection Technical s o Freiberge s 3 % A PB 2 7 7 2 x>16 FOIA - Request Log

  3. Application of the optically stimulated luminescence (OSL) technique for mouse dosimetry in micro-CT imaging

    SciTech Connect (OSTI)

    Vrigneaud, Jean-Marc; Courteau, Alan; Oudot, Alexandra; Collin, Bertrand [Department of Nuclear Medicine, Centre Georges-Franois Leclerc, 1 rue Professeur Marion, Dijon 21079 Cedex (France)] [Department of Nuclear Medicine, Centre Georges-Franois Leclerc, 1 rue Professeur Marion, Dijon 21079 Cedex (France); Ranouil, Julien [Landauer Europe, 33 avenue du Gnral Leclerc, Fontenay-aux-Roses 92266 Cedex (France)] [Landauer Europe, 33 avenue du Gnral Leclerc, Fontenay-aux-Roses 92266 Cedex (France); Morgand, Loc; Raguin, Olivier [Oncodesign, 20 rue Jean Mazen, Dijon 21076 Cedex (France)] [Oncodesign, 20 rue Jean Mazen, Dijon 21076 Cedex (France); Walker, Paul [LE2i CNRS UMR 5158, Faculty of Medicine, BP 87900, 21079 Dijon Cedex (France)] [LE2i CNRS UMR 5158, Faculty of Medicine, BP 87900, 21079 Dijon Cedex (France); Brunotte, Franois [Department of Nuclear Medicine, Centre Georges-Franois Leclerc, 1 rue Professeur Marion, Dijon 21079 Cedex, France and LE2i CNRS UMR 5158, Faculty of Medicine, BP 87900, 21079 Dijon Cedex (France)] [Department of Nuclear Medicine, Centre Georges-Franois Leclerc, 1 rue Professeur Marion, Dijon 21079 Cedex, France and LE2i CNRS UMR 5158, Faculty of Medicine, BP 87900, 21079 Dijon Cedex (France)

    2013-12-15T23:59:59.000Z

    Purpose: Micro-CT is considered to be a powerful tool to investigate various models of disease on anesthetized animals. In longitudinal studies, the radiation dose delivered by the micro-CT to the same animal is a major concern as it could potentially induce spurious effects in experimental results. Optically stimulated luminescence dosimeters (OSLDs) are a relatively new kind of detector used in radiation dosimetry for medical applications. The aim of this work was to assess the dose delivered by the CT component of a micro-SPECT (single-photon emission computed tomography)/CT camera during a typical whole-body mouse study, using commercially available OSLDs based on Al{sub 2}O{sub 3}:C crystals.Methods: CTDI (computed tomography dose index) was measured in micro-CT with a properly calibrated pencil ionization chamber using a rat-like phantom (60 mm in diameter) and a mouse-like phantom (30 mm in diameter). OSLDs were checked for reproducibility and linearity in the range of doses delivered by the micro-CT. Dose measurements obtained with OSLDs were compared to those of the ionization chamber to correct for the radiation quality dependence of OSLDs in the low-kV range. Doses to tissue were then investigated in phantoms and cadavers. A 30 mm diameter phantom, specifically designed to insert OSLDs, was used to assess radiation dose over a typical whole-body mouse imaging study. Eighteen healthy female BALB/c mice weighing 27.1 0.8 g (1 SD) were euthanized for small animal measurements. OLSDs were placed externally or implanted internally in nine different locations by an experienced animal technician. Five commonly used micro-CT protocols were investigated.Results: CTDI measurements were between 78.0 2.1 and 110.7 3.0 mGy for the rat-like phantom and between 169.3 4.6 and 203.6 5.5 mGy for the mouse-like phantom. On average, the displayed CTDI at the operator console was underestimated by 1.19 for the rat-like phantom and 2.36 for the mouse-like phantom. OSLDs exhibited a reproducibility of 2.4% and good linearity was found between 60 and 450 mGy. The energy scaling factor was calculated to be between 1.80 0.16 and 1.86 0.16, depending on protocol used. In phantoms, mean doses to tissue over a whole-body CT examination were ranging from 186.4 7.6 to 234.9 7.1 mGy. In mice, mean doses to tissue in the mouse trunk (thorax, abdomen, pelvis, and flanks) were between 213.0 17.0 and 251.2 13.4 mGy. Skin doses (3 OSLDs) were much higher with average doses between 350.6 25.3 and 432.5 34.1 mGy. The dose delivered during a topogram was found to be below 10 mGy. Use of the multimouse bed of the system gave a significantly 20%40% lower dose per animal (p < 0.05).Conclusions: Absorbed doses in micro-CT were found to be relatively high. In micro-SPECT/CT imaging, the micro-CT unit is mainly used to produce a localization frame. As a result, users should pay attention to adjustable CT parameters so as to minimize the radiation dose and avoid any adverse radiation effects which may interfere with biological parameters studied.

  4. State-Of-The-Art in Permeability Determination From Well Log Data: Part 2-Verifiable, Accurate Permeability Predictions, the Touch-Stone of All Models

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    SPE 30979 State-Of-The-Art in Permeability Determination From Well Log Data: Part 2- Verifiable prediction from well log data, is accurate and verifiable prediction of permeability for wells from which only the well log data is available. So far all the available models and techniques have been tried

  5. Some new ideas for well log pore-pressure prediction

    SciTech Connect (OSTI)

    Hamouz, M.A.; Mueller, S.L.

    1984-09-01T23:59:59.000Z

    Predicting pore pressure from wireline logs is a common practice when designing wells. The accuracy of each prediction depends on the type of plot used and its associated assumptions. If these assumptions aren't adequately tested, then the results are often confusing and, possibly, dangerous. Accuracy is improved in all situations by plotting the correct wireline variables, checking the validity of the normal pressure trends with other pressure plots and regional data, and choosing the best techniques to estimate pressure.

  6. Leak checker data logging system

    DOE Patents [OSTI]

    Gannon, Jeffrey C. (Arlington, TX); Payne, John J. (Waterman, IL)

    1996-01-01T23:59:59.000Z

    A portable, high speed, computer-based data logging system for field testing systems or components located some distance apart employs a plurality of spaced mass spectrometers and is particularly adapted for monitoring the vacuum integrity of a long string of a superconducting magnets such as used in high energy particle accelerators. The system provides precise tracking of a gas such as helium through the magnet string when the helium is released into the vacuum by monitoring the spaced mass spectrometers allowing for control, display and storage of various parameters involved with leak detection and localization. A system user can observe the flow of helium through the magnet string on a real-time basis hour the exact moment of opening of the helium input valve. Graph reading can be normalized to compensate for magnet sections that deplete vacuum faster than other sections between testing to permit repetitive testing of vacuum integrity in reduced time.

  7. Leak checker data logging system

    DOE Patents [OSTI]

    Gannon, J.C.; Payne, J.J.

    1996-09-03T23:59:59.000Z

    A portable, high speed, computer-based data logging system for field testing systems or components located some distance apart employs a plurality of spaced mass spectrometers and is particularly adapted for monitoring the vacuum integrity of a long string of a superconducting magnets such as used in high energy particle accelerators. The system provides precise tracking of a gas such as helium through the magnet string when the helium is released into the vacuum by monitoring the spaced mass spectrometers allowing for control, display and storage of various parameters involved with leak detection and localization. A system user can observe the flow of helium through the magnet string on a real-time basis hour the exact moment of opening of the helium input valve. Graph reading can be normalized to compensate for magnet sections that deplete vacuum faster than other sections between testing to permit repetitive testing of vacuum integrity in reduced time. 18 figs.

  8. Investigation of the Degradation Mechanisms of a Variety of Organic Photovoltaic Devices by Combination of Imaging Techniques - The ISOS-3 Inter-Laboratory Collaboration

    SciTech Connect (OSTI)

    Rosch, R.; Tanenbaum, D. M.; Jrgensen, M.; Seeland, M.; Barenklau, M.; Hermenau, M.; Voroshazi, E.; Lloyd, M. T.; Galagan, Y.; Zimmermann, B.; Wurfel, U.; Hosel, M.; Dam, H. F.; Gevorgyan, S. A.; Kudret, S.; Maes, W.; Lutsen, L.; Vanderzande, D.; Andriessen, R.; Teran-Escobar, G.

    2012-04-01T23:59:59.000Z

    The investigation of degradation of seven distinct sets (with a number of individual cells of n {>=} 12) of state of the art organic photovoltaic devices prepared by leading research laboratories with a combination of imaging methods is reported. All devices have been shipped to and degraded at Riso DTU up to 1830 hours in accordance with established ISOS-3 protocols under defined illumination conditions. Imaging of device function at different stages of degradation was performed by laser-beam induced current (LBIC) scanning; luminescence imaging, specifically photoluminescence (PLI) and electroluminescence (ELI); as well as by lock-in thermography (LIT). Each of the imaging techniques exhibits its specific advantages with respect to sensing certain degradation features, which will be compared and discussed here in detail. As a consequence, a combination of several imaging techniques yields very conclusive information about the degradation processes controlling device function. The large variety of device architectures in turn enables valuable progress in the proper interpretation of imaging results -- hence revealing the benefits of this large scale cooperation in making a step forward in the understanding of organic solar cell aging and its interpretation by state-of-the-art imaging methods.

  9. Investigation of the Degradation Mechanisms of a Variety of Organic Photovoltaic Devices by Combination of Imaging Techniquesthe ISOS-3Inter-laboratory Collaboration

    SciTech Connect (OSTI)

    Germack D.; Rosch, R.; Tanenbaum, D.M.; Jorgensen, M.; Seeland, M.; Barenklau, M.; Hermenau, M.; Voroshazi, E.; Lloyd, M.T.; Galagan, Y.; Zimmermann, B.; Wurfel, U.; Hosel, M.; Dam, H.F.; Gevorgyan, S.A.; Kudret, S.; Maes, W.; Lutsen, L.; Vanderzande, D.; Andriessen, R.; Teran-Escobar, G.; Lira-Cantu, M.; Rivaton, A.; Uzunoglu, G.Y.; Andreasen, B.; Madsen, M.V.; Norrman, K.; Hoppe, H.; Krebs, F.C.

    2012-04-01T23:59:59.000Z

    The investigation of degradation of seven distinct sets (with a number of individual cells of n {ge} 12) of state of the art organic photovoltaic devices prepared by leading research laboratories with a combination of imaging methods is reported. All devices have been shipped to and degraded at Risoe DTU up to 1830 hours in accordance with established ISOS-3 protocols under defined illumination conditions. Imaging of device function at different stages of degradation was performed by laser-beam induced current (LBIC) scanning; luminescence imaging, specifically photoluminescence (PLI) and electroluminescence (ELI); as well as by lock-in thermography (LIT). Each of the imaging techniques exhibits its specific advantages with respect to sensing certain degradation features, which will be compared and discussed here in detail. As a consequence, a combination of several imaging techniques yields very conclusive information about the degradation processes controlling device function. The large variety of device architectures in turn enables valuable progress in the proper interpretation of imaging results - hence revealing the benefits of this large scale cooperation in making a step forward in the understanding of organic solar cell aging and its interpretation by state-of-the-art imaging methods.

  10. Log-Sobolev inequalities for subelliptic operators

    E-Print Network [OSTI]

    Fabrice Baudoin

    2012-02-07T23:59:59.000Z

    Log-Sobolev inequalities for subelliptic operators. Fabrice Baudoin. Purdue University. Georgia Tech Probability Seminar. Based on a joint work with M.

  11. Fluid-Rock Characterization and Interactions in NMR Well Logging

    SciTech Connect (OSTI)

    George J. Hirasaki; Kishore K. Mohanty

    2005-09-05T23:59:59.000Z

    The objective of this report is to characterize the fluid properties and fluid-rock interactions that are needed for formation evaluation by NMR well logging. The advances made in the understanding of NMR fluid properties are summarized in a chapter written for an AAPG book on NMR well logging. This includes live oils, viscous oils, natural gas mixtures, and the relation between relaxation time and diffusivity. Oil based drilling fluids can have an adverse effect on NMR well logging if it alters the wettability of the formation. The effect of various surfactants on wettability and surface relaxivity are evaluated for silica sand. The relation between the relaxation time and diffusivity distinguishes the response of brine, oil, and gas in a NMR well log. A new NMR pulse sequence in the presence of a field gradient and a new inversion technique enables the T{sub 2} and diffusivity distributions to be displayed as a two-dimensional map. The objectives of pore morphology and rock characterization are to identify vug connectivity by using X-ray CT scan, and to improve NMR permeability correlation. Improved estimation of permeability from NMR response is possible by using estimated tortuosity as a parameter to interpolate between two existing permeability models.

  12. Impact of seismic resolution on geostatistical techniques

    SciTech Connect (OSTI)

    Mukerji, T.; Rio, P.; Mavko, G.M.

    1995-12-31T23:59:59.000Z

    Seismic measurements are often incorporated in geostatistical techniques for estimation and simulation of petrophysical properties such as porosity. The good correlation between seismic and rock properties provides a basis for these techniques. Seismic data have a wide spatial coverage not available in log or core data. However, each seismic measurement has a characteristic response function determined by the source-receiver geometry and signal bandwidth. The image response of the seismic measurement gives a filtered version of the true velocity image. Therefore the seismic image we obtain cannot reflect exactly the true seismic velocity at all scales of spatial heterogeneities present in the earth. The seismic response function can be conveniently approximated in the spatial spectral domain using a Born approximation. Our goal is to study how the seismic image response affects the estimation of variograms and spatial scales, and its impact on geostatistical results. Limitations of view angles and signal bandwidth not only smoothes the seismic image, increasing the variogram range, but can also introduce anisotropic spatial structures in the image. We can add value to the seismic data by better characterizing an quantifying these attributes. As an exercise we present example of seismically assisted cosimulation of porosity between wells.

  13. Category:Well Log Techniques | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, click here.Telluric Survey as explorationpage? For detailed information on

  14. Well Log Techniques At Coso Geothermal Area (1985) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTri GlobalJump to: navigation,Goff, 2002) |Weedpatch,Welcome

  15. Chemical logging- a geothermal technique | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty EditCalifornia:PowerCER.png El CER es unaChelmsford,

  16. Dynamical evolution of active detached binaries on log Jo - log M diagram and contact binary formation

    E-Print Network [OSTI]

    Z. Eker; O. Demircan; S. Bilir; Y. Karatas

    2006-09-14T23:59:59.000Z

    Orbital angular momentum (Jo), systemic mass (M) and orbital period (P) distributions of chromospherically active binaries (CAB) and W Ursae Majoris (W UMa) systems were investigated. The diagrams of log Jo - log P, log M - log P and log Jo-log M were formed from 119 CAB and 102 W UMa stars. The log Jo-log M diagram is found to be most meaningful in demonstrating dynamical evolution of binary star orbits. A slightly curved borderline (contact border) separating the detached and the contact systems was discovered on the log Jo - log M diagram. Since orbital size (a) and period (P) of binaries are determined by their current Jo, M and mass ratio q, the rates of orbital angular momentum loss (dlog Jo/dt) and mass loss (dlog M/dt) are primary parameters to determine the direction and the speed of the dynamical evolution. A detached system becomes a contact system if its own dynamical evolution enables it to pass the contact border on the log Jo - log M diagram. Evolution of q for a mass loosing detached system is unknown unless mass loss rate for each component is known. Assuming q is constant in the first approximation and using the mean decreasing rates of Jo and M from the kinematical ages of CAB stars, it has been predicted that 11, 23 and 39 cent of current CAB stars would transform to W UMa systems if their nuclear evolution permits them to live 2, 4 and 6 Gyrs respectively.

  17. CORRUPTION AND ILLEGAL LOGGING IN THE WOOD

    E-Print Network [OSTI]

    Pettenella, Davide

    CORRUPTION AND ILLEGAL LOGGING IN THE WOOD PRODUCTS MARKET: the Italian experience in controlling Science 7 May 2004 Paper organization 1. State of the problem 2. Are Italian companies involved in deforestation and trade of illegal logging? 3. Which are the most affected countries? 4. Why do we need

  18. Coal-log pipeline system development

    SciTech Connect (OSTI)

    Liu, H.

    1991-12-01T23:59:59.000Z

    Project tasks include: (1) Perform the necessary testing and development to demonstrate that the amount of binder in coal logs can be reduced to 8% or lower to produce logs with adequate strength to eliminate breakage during pipeline transportation, under conditions experienced in long distance pipeline systems. Prior to conducting any testing and demonstration, grantee shall perform an information search and make full determination of all previous attempts to extrude or briquette coal, upon which the testing and demonstration shall be based. (2) Perform the necessary development to demonstrate a small model of the most promising injection system for coal-logs, and tests the logs produced. (3) Conduct economic analysis of coal-log pipeline, based upon the work to date. Refine and complete the economic model. (VC)

  19. Internet Data logging and Display

    E-Print Network [OSTI]

    Sweeney, J., Jr.; Culp, C.; Haberl, J. S.

    2001-01-01T23:59:59.000Z

    InterDAQ Research Team. December 2001, Final Report Energy Systems Laboratory, Texas A&M University IEEE Instrumentation and Measurement Technology Conference Budapest, Hungary, May 21-23, 2001 An Internet Based Power Measurement Technique M. Yeary1, B...-time monitoring and dynamic thermal rating of power transmission circuits," IEEE Transactions on Power Delivery, vol. 11, no. 3, pp. 1407-1418, 1996. [6] A. Belardinelii, G. Palagi, R. Bedini, A. Ripoli, V. Macellari, D. Franchi, "Advanced technology for personal...

  20. Logging-while-coring method and apparatus

    DOE Patents [OSTI]

    Goldberg, David S.; Myers, Gregory J.

    2007-01-30T23:59:59.000Z

    A method and apparatus for downhole coring while receiving logging-while-drilling tool data. The apparatus includes core collar and a retrievable core barrel. The retrievable core barrel receives core from a borehole which is sent to the surface for analysis via wireline and latching tool The core collar includes logging-while-drilling tools for the simultaneous measurement of formation properties during the core excavation process. Examples of logging-while-drilling tools include nuclear sensors, resistivity sensors, gamma ray sensors, and bit resistivity sensors. The disclosed method allows for precise core-log depth calibration and core orientation within a single borehole, and without at pipe trip, providing both time saving and unique scientific advantages.

  1. Sugarcane Log Turning Ltd. Business Plan

    E-Print Network [OSTI]

    ; for example, log homes inspired by the Olympic Games, and other homes that will complement the natural look as a business over time. SCLT believes that through working together with both the WLIB and AFRF, a prosperous

  2. Logging-while-coring method and apparatus

    DOE Patents [OSTI]

    Goldberg, David S. (New York, NY); Myers, Gregory J. (Cornwall, NY)

    2007-11-13T23:59:59.000Z

    A method and apparatus for downhole coring while receiving logging-while-drilling tool data. The apparatus includes core collar and a retrievable core barrel. The retrievable core barrel receives core from a borehole which is sent to the surface for analysis via wireline and latching tool The core collar includes logging-while-drilling tools for the simultaneous measurement of formation properties during the core excavation process. Examples of logging-while-drilling tools include nuclear sensors, resistivity sensors, gamma ray sensors, and bit resistivity sensors. The disclosed method allows for precise core-log depth calibration and core orientation within a single borehole, and without at pipe trip, providing both time saving and unique scientific advantages.

  3. Method of assaying uranium with prompt fission and thermal neutron borehole logging adjusted by borehole physical characteristics. [Patient application

    DOE Patents [OSTI]

    Barnard, R.W.; Jensen, D.H.

    1980-11-05T23:59:59.000Z

    Uranium formations are assayed by prompt fission neutron logging techniques. The uranium in the formation is proportional to the ratio of epithermal counts to thermal or epithermal dieaway. Various calibration factors enhance the accuracy of the measurement.

  4. Automatic well log correlation using neural networks

    E-Print Network [OSTI]

    Habiballah, Walid Abdulrahim

    1991-01-01T23:59:59.000Z

    AUTOMATIC WELL LOG CORRELATION USING NEURAL NETWORKS A Thesis by WALID ABDULHAHIM HABIBALLAH Submitted to the Office of Graduate Studies of Texas AaM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... August 1991 Major Subject; Petroleum Engineering AUTOMATIC WELL LOG CORRELATION USING NEURAL NETWORKS A Thesis by WALID ABDULRAHIM HABIBALLAH Approved as to style and content by: R. A. St tzman (Chair of Committee) S. W. Poston (Member) R. R...

  5. Masked-backlighter technique used to simultaneously image x-ray absorption and x-ray emission from an inertial confinement fusion plasma

    SciTech Connect (OSTI)

    Marshall, F. J., E-mail: fredm@lle.rochester.edu; Radha, P. B. [Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States)

    2014-11-15T23:59:59.000Z

    A method to simultaneously image both the absorption and the self-emission of an imploding inertial confinement fusion plasma has been demonstrated on the OMEGA Laser System. The technique involves the use of a high-Z backlighter, half of which is covered with a low-Z material, and a high-speed x-ray framing camera aligned to capture images backlit by this masked backlighter. Two strips of the four-strip framing camera record images backlit by the high-Z portion of the backlighter, while the other two strips record images aligned with the low-Z portion of the backlighter. The emission from the low-Z material is effectively eliminated by a high-Z filter positioned in front of the framing camera, limiting the detected backlighter emission to that of the principal emission line of the high-Z material. As a result, half of the images are of self-emission from the plasma and the other half are of self-emission plus the backlighter. The advantage of this technique is that the self-emission simultaneous with backlighter absorption is independently measured from a nearby direction. The absorption occurs only in the high-Z backlit frames and is either spatially separated from the emission or the self-emission is suppressed by filtering, or by using a backlighter much brighter than the self-emission, or by subtraction. The masked-backlighter technique has been used on the OMEGA Laser System to simultaneously measure the emission profiles and the absorption profiles of polar-driven implosions.

  6. 18th Annual International Conference of the IEEE Engineering in MIedicineand BiollogySociety, Amsterdam 1996 3.3.1: MR Imaging Systems and Reconstruction Techniques

    E-Print Network [OSTI]

    Ider, Yusuf Ziya

    Society, Amsterdam 1996 3.3.1: MR Imaging Systems and Reconstruction Techniques MEASURINGAC MAGNETIC FIELD is given in Fig.1. In the absence of an applied AC current, this pulse sequence is the same asthe one used by Maudsley A.A. et.al. to calculate the DC magnetic field inhomo se RP .,A_ II I f 0Gz I " v - who & - Fig.1

  7. Green Energy Resources Inc formerly New York International Log...

    Open Energy Info (EERE)

    International Log Lumber Company Jump to: navigation, search Name: Green Energy Resources Inc (formerly New York International Log & Lumber Company) Place: San Antonio, Texas...

  8. alfa activity log: Topics by E-print Network

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

    Renewable Energy Websites Summary: to endorse or advertise a commercial product or company. 12;Gentle Logging System Evaluation (ParticipantsGentle Logging System...

  9. abandoned logging roads: Topics by E-print Network

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

    Renewable Energy Websites Summary: to endorse or advertise a commercial product or company. 12;Gentle Logging System Evaluation (ParticipantsGentle Logging System...

  10. acoustic drillhole logging: Topics by E-print Network

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

    Renewable Energy Websites Summary: to endorse or advertise a commercial product or company. 12;Gentle Logging System Evaluation (ParticipantsGentle Logging System...

  11. annual logging symposium: Topics by E-print Network

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

    Renewable Energy Websites Summary: to endorse or advertise a commercial product or company. 12;Gentle Logging System Evaluation (ParticipantsGentle Logging System...

  12. activity log files: Topics by E-print Network

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

    Renewable Energy Websites Summary: to endorse or advertise a commercial product or company. 12;Gentle Logging System Evaluation (ParticipantsGentle Logging System...

  13. automatic log sorting: Topics by E-print Network

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

    Renewable Energy Websites Summary: to endorse or advertise a commercial product or company. 12;Gentle Logging System Evaluation (ParticipantsGentle Logging System...

  14. Busted: Illegal Logging in Kenya Daily Nation Newswire

    E-Print Network [OSTI]

    Busted: Illegal Logging in Kenya Daily Nation Newswire Police and Kenya Wildlife Service personnel many merchants were using expired permits. Eighteen people have been arrested for illegal logging

  15. Clinical Evaluation of Spatial Accuracy of a Fusion Imaging Technique Combining Previously Acquired Computed Tomography and Real-Time Ultrasound for Imaging of Liver Metastases

    SciTech Connect (OSTI)

    Hakime, Antoine, E-mail: thakime@yahoo.com; Deschamps, Frederic; Garcia Marques de Carvalho, Enio; Teriitehau, Christophe; Auperin, Anne; De Baere, Thierry [Gustave Roussy Institute (France)

    2011-04-15T23:59:59.000Z

    Purpose: This study was designed to evaluate the spatial accuracy of matching volumetric computed tomography (CT) data of hepatic metastases with real-time ultrasound (US) using a fusion imaging system (VNav) according to different clinical settings. Methods: Twenty-four patients with one hepatic tumor identified on enhanced CT and US were prospectively enrolled. A set of three landmarks markers was chosen on CT and US for image registration. US and CT images were then superimposed using the fusion imaging display mode. The difference in spatial location between the tumor visible on the CT and the US on the overlay images (reviewer no. 1, comment no. 2) was measured in the lateral, anterior-posterior, and vertical axis. The maximum difference (Dmax) was evaluated for different predictive factors.CT performed 1-30 days before registration versus immediately before. Use of general anesthesia for CT and US versus no anesthesia.Anatomic landmarks versus landmarks that include at least one nonanatomic structure, such as a cyst or a calcificationResultsOverall, Dmax was 11.53 {+-} 8.38 mm. Dmax was 6.55 {+-} 7.31 mm with CT performed immediately before VNav versus 17.4 {+-} 5.18 with CT performed 1-30 days before (p < 0.0001). Dmax was 7.05 {+-} 6.95 under general anesthesia and 16.81 {+-} 6.77 without anesthesia (p < 0.0015). Landmarks including at least one nonanatomic structure increase Dmax of 5.2 mm (p < 0.0001). The lowest Dmax (1.9 {+-} 1.4 mm) was obtained when CT and VNav were performed under general anesthesia, one immediately after the other. Conclusions: VNav is accurate when adequate clinical setup is carefully selected. Only under these conditions (reviewer no. 2), liver tumors not identified on US can be accurately targeted for biopsy or radiofrequency ablation using fusion imaging.

  16. SPE-163690-MS Synthetic, Geomechanical Logs for Marcellus Shale

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    SPE-163690-MS Synthetic, Geomechanical Logs for Marcellus Shale M. O. Eshkalak, SPE, S. D of production from shale gas reservoirs. In this study, synthetic geomechanical logs (Including following-driven models are developed that are capable of generating synthetic geomechanical logs from conventional logs

  17. Logging threatens Indonesia's biodiversity By Dianthus Saputra Estey in Jakarta

    E-Print Network [OSTI]

    is illegal logging. "So far, illegal logging is responsible for some 75% of the damage done to Indonesia's forests," he said during a press conference. "I think we have to stop blaming it all on just the illegal logging and start realising that both legal and illegal logging are responsible for our environmental

  18. Technique and application of a non-invasive three dimensional image matching method for the study of total shoulder arthroplasty

    E-Print Network [OSTI]

    Massimini, Daniel Frank

    2009-01-01T23:59:59.000Z

    Knowledge of in-vivo glenohumeral joint biomechanics after total shoulder arthroplasty are important for the improvement of patient function, implant longevity and surgical technique. No data has been published on the ...

  19. Bacterial protein complexes studied by single-molecule imaging and single-cell micromanipulation techniques in microfluidic devices

    E-Print Network [OSTI]

    Reuter, Marcel

    2010-06-28T23:59:59.000Z

    Biological systems of bacteria were investigated at the single-cell and single-molecule level. Additionally, aspects of the techniques employed were studied. A unifying theme in each project is the reliance on optical ...

  20. Permeability extraction: A sonic log inversion

    SciTech Connect (OSTI)

    Akbar, N.; Kim, J.J. [Saudi Aramco, Dhahran (Saudi Arabia)

    1994-12-31T23:59:59.000Z

    In this paper the authors provide the missing important link between permeability and acoustic velocities by generating a permeability-dependent synthetic sonic log in a carbonate reservoir. The computations are based on Akbar`s theory that relates wave velocity to frequency, rock properties (e.g., lithology, permeability, and porosity), and fluid saturation and properties (viscosity, density, and compressibility). An inverted analytical expression of the theory is used to extract permeability from sonic velocity. The synthetic sonic and the computed permeability are compared with the observed sonic log and with plug permeability, respectively. The results demonstrate, as predicted by theory, that permeability can be related directly to acoustic velocities.

  1. Development and application of a high speed digital data acquisition technique to study steam bubble collapse using particle image velocimetry

    E-Print Network [OSTI]

    Schmidl, William Daniel

    1992-01-01T23:59:59.000Z

    John Poston ( Head of Department ) ABSTRACT Development anil Appl&cat&on of a. H&vh Speed D&g&tal Data A?qu&s&t&on Techn&que to Study Steam Bubble & 'ollapse us&ng Part&cle Image L'elo imetry I August 1090) K&)liam Dan&el Schr&n Jl. B S . 1&nited... vnth the practical applicatloils of the hardware used in this prelect. TABLE OF CONTENTS CHAPTER Page I INTRODUCTION I 1 Background I 9 Background for Pulsed Laser Velocimetry I 3 tlethodnlogy for Particle Image Velocimetry 14 Background...

  2. Prospects for Reduced Impact Logging in Central African logging concessions Driss Ezzine de Blas *, Manuel Ruiz Perez 1

    E-Print Network [OSTI]

    prices and increasing demand (Karsenty, 2006a). As a fresh wave of logging companies have resumedProspects for Reduced Impact Logging in Central African logging concessions Driss Ezzine de Blas potential, future expansion and industrialisation of the Central African logging sector: ``Dans un avenir

  3. Applications of Remote Sensing Techniques to Identify Major Faults in the Island of Puerto Rico using SAR and SLAR images

    E-Print Network [OSTI]

    Gilbes, Fernando

    Rico using SAR and SLAR images Ashlyann Arana Morales1 , Daniel J. Mercado Rosario2 1 Bo Tanama 1B Calle 1 Arecibo P.R, 00612-5578, ashlyann.arana@upr.edu 2 #15 Calle Iglesia Quebradilla P.R, 00678

  4. Imaging

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGasReleaseSpeechesHallNotSeventyTechnologiesfacilityImaging

  5. Imaging

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) EnvironmentalGyroSolé(tm)Hydrogen StorageITERITERBuilding EnergyImaging Print The

  6. Imaging

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC) EnvironmentalGyroSolé(tm)Hydrogen StorageITERITERBuilding EnergyImaging Print

  7. Search Log Analysis of the ARTstor Cultural Heritage Image Database

    E-Print Network [OSTI]

    Lowe, Heather Ann

    2013-01-01T23:59:59.000Z

    Chiaroscuro, as well as Rembrandt or Caravaggio), but thesuch as ARTstor (e.g. Rembrandt, Caravaggio, and other title

  8. Search Log Analysis of the ARTstor Cultural Heritage Image Database

    E-Print Network [OSTI]

    Lowe, Heather Ann

    2013-01-01T23:59:59.000Z

    and Information Science by Heather Ann Lowe ABSTRACT OF THEImage Database by Heather Ann Lowe Master of Library andiii The thesis of Heather Ann Lowe is approved. Johanna R.

  9. Formation Micro-Imager Logs (FMI) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489Information HydroFontana,dataset name below

  10. Image Logs At Coso Geothermal Area (2004) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, search OpenEIHesperia,IDGWP Wind FarmInformationIllinois/WindIllustrative

  11. Image Logs At Coso Geothermal Area (2011) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetecGtel JumpCounty, Texas:ITCSolidIdaho‎Information RiverIllumitex

  12. Advertise Subscribe Log in Register Advanced search

    E-Print Network [OSTI]

    Advertise Subscribe Log in Register Advanced search Home News Comment Special reports People power Europe does not need nuclear power to meet its future energy needs. Question of nuclear subsidies-reduction target would be better. Blowing away nuclear power Europe does not need nuclear power to meet its future

  13. April 27, 2010 Well Logging I

    E-Print Network [OSTI]

    Ito, Garrett

    wells and may be drilled to tap into water or oil/natural gas. Core samples are usually not taken4/26/2010 1 GG450 April 27, 2010 Well Logging I Today's material comes from p. 501-541 in the text book. Please read and understand all of this material! Drilling Exploration and Scientific Holes

  14. Security Event and Log Management Service

    E-Print Network [OSTI]

    Security Event and Log Management Service: Comprehensive, Cost-effective Approach to Enhance Network Security and Security Data Management IBM Global Technology Services December 2007 #12;Executive Summary The economics of network security have changed. The high cost and complexity inherent in the use

  15. 2011 Daily Log Report #: 2011-00168

    E-Print Network [OSTI]

    Boyce, Richard L.

    the washing machine that he was utilizing. Report #: 2011-00160 Reported: 03/28/2011 2045 Occurred: Same2011 Daily Log March 2011 Report #: 2011-00168 Reported: 03/31/2011 1237 Occurred: 03/31/2011 1235 Incident: Medical Emergency Location: Outside of Student Union Disposition: Report--Closed Comments: Female

  16. High Speed Max-Log-MAP Turbo SISO Decoder Implementation Using Branch Metric Normalization

    E-Print Network [OSTI]

    Arslan, Tughrul

    High Speed Max-Log-MAP Turbo SISO Decoder Implementation Using Branch Metric Normalization J. H.Erdogan@ee.ed.ac.uk, Tughrul.Arslan@ee.ed.ac.uk Abstract The authors present a turbo soft-in soft-out (SISO) decoder based. The turbo decoder with the proposed technique has been synthesized to evaluate its power consumption

  17. INSPIRE and SPIRES Log File Analysis

    SciTech Connect (OSTI)

    Adams, Cole; /Wheaton Coll. /SLAC

    2012-08-31T23:59:59.000Z

    SPIRES, an aging high-energy physics publication data base, is in the process of being replaced by INSPIRE. In order to ease the transition from SPIRES to INSPIRE it is important to understand user behavior and the drivers for adoption. The goal of this project was to address some questions in regards to the presumed two-thirds of the users still using SPIRES. These questions are answered through analysis of the log files from both websites. A series of scripts were developed to collect and interpret the data contained in the log files. The common search patterns and usage comparisons are made between INSPIRE and SPIRES, and a method for detecting user frustration is presented. The analysis reveals a more even split than originally thought as well as the expected trend of user transition to INSPIRE.

  18. Toxic species evolution from guayule fireplace logs

    E-Print Network [OSTI]

    Soderman, Kristi Lee

    1988-01-01T23:59:59.000Z

    and cellulosic material from bagasse are generated as co-products of rubber extraction. The cellulosic material uses which are favored at this time require combustion. Bagasse affords the potential for use as biomass fuel in the production of process steam... of chromium, if present in the hexavalent state, no unusually toxic constituents were found in the smoke particulates, gaseous state or as condensible liquids for flaming and smoldering combustion of guayule fireplace logs. Butylhydroxytoluene (BHT), a...

  19. Chiral gravity, log gravity, and extremal CFT

    SciTech Connect (OSTI)

    Maloney, Alexander [Physics Department, McGill University, Montreal, QC H3A 2T8 (Canada); Song Wei [Key Laboratory of Frontiers in Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, 100190 (China); Center for the Fundamental Laws of Nature Jefferson Physical Laboratory, Harvard University, Cambridge, Massachusetts 02138 (United States); Strominger, Andrew [Center for the Fundamental Laws of Nature Jefferson Physical Laboratory, Harvard University, Cambridge, Massachusetts 02138 (United States)

    2010-03-15T23:59:59.000Z

    We show that the linearization of all exact solutions of classical chiral gravity around the AdS{sub 3} vacuum have positive energy. Nonchiral and negative-energy solutions of the linearized equations are infrared divergent at second order, and so are removed from the spectrum. In other words, chirality is confined and the equations of motion have linearization instabilities. We prove that the only stationary, axially symmetric solutions of chiral gravity are BTZ black holes, which have positive energy. It is further shown that classical log gravity--the theory with logarithmically relaxed boundary conditions--has finite asymptotic symmetry generators but is not chiral and hence may be dual at the quantum level to a logarithmic conformal field theories (CFT). Moreover we show that log gravity contains chiral gravity within it as a decoupled charge superselection sector. We formally evaluate the Euclidean sum over geometries of chiral gravity and show that it gives precisely the holomorphic extremal CFT partition function. The modular invariance and integrality of the expansion coefficients of this partition function are consistent with the existence of an exact quantum theory of chiral gravity. We argue that the problem of quantizing chiral gravity is the holographic dual of the problem of constructing an extremal CFT, while quantizing log gravity is dual to the problem of constructing a logarithmic extremal CFT.

  20. Acoustic Waveform Logging - Advances In Theory And Application

    E-Print Network [OSTI]

    Cheng, C. H.

    Full-waveform acoustic logging has made significant advances in both theory and application in recent years, and these advances have greatly increased the capability of log analysts to measure the physical properties of ...

  1. Effects of borehole stability on well log data

    E-Print Network [OSTI]

    Grandi Karam, Samantha, 1973-

    2003-01-01T23:59:59.000Z

    In this thesis we analyze the effects of borehole irregularities on well logs and develop methods to obtain reliable formation properties from such logs. Data from a well in eastern Venezuela are analysed. Borehole ...

  2. Well Log Data At Blue Mountain Geothermal Area (Fairbank & Niggemann...

    Open Energy Info (EERE)

    search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Well Log Data At Blue Mountain Geothermal Area (Fairbank & Niggemann, 2004) Exploration Activity Details...

  3. Pressure Temperature Log At Roosevelt Hot Springs Geothermal...

    Open Energy Info (EERE)

    navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Pressure Temperature Log At Roosevelt Hot Springs Geothermal Area (Faulder, 1991) Exploration Activity...

  4. Evaluation of Simple Causal Message Logging for Large-Scale Fault Tolerant HPC Systems

    SciTech Connect (OSTI)

    Bronevetsky, G; Meneses, E; Kale, L V

    2011-02-25T23:59:59.000Z

    The era of petascale computing brought machines with hundreds of thousands of processors. The next generation of exascale supercomputers will make available clusters with millions of processors. In those machines, mean time between failures will range from a few minutes to few tens of minutes, making the crash of a processor the common case, instead of a rarity. Parallel applications running on those large machines will need to simultaneously survive crashes and maintain high productivity. To achieve that, fault tolerance techniques will have to go beyond checkpoint/restart, which requires all processors to roll back in case of a failure. Incorporating some form of message logging will provide a framework where only a subset of processors are rolled back after a crash. In this paper, we discuss why a simple causal message logging protocol seems a promising alternative to provide fault tolerance in large supercomputers. As opposed to pessimistic message logging, it has low latency overhead, especially in collective communication operations. Besides, it saves messages when more than one thread is running per processor. Finally, we demonstrate that a simple causal message logging protocol has a faster recovery and a low performance penalty when compared to checkpoint/restart. Running NAS Parallel Benchmarks (CG, MG and BT) on 1024 processors, simple causal message logging has a latency overhead below 5%.

  5. ADL Logging Architecture JIGI determines all server addresses from

    E-Print Network [OSTI]

    Jane, Greg

    ADL Logging Architecture JIGI logging server JIGI determines all server addresses from from the authentication server) JIGI user authentication server Note: JIGI authentication is logically; if the former, server adds sequence numbers to preserve record order (ODBC or other) middleware logging server

  6. NGO briefing paper on combating illegal logging and related trade

    E-Print Network [OSTI]

    NGO briefing paper on combating illegal logging and related trade Proposed Regulation concerning the placing of timber and timber products on the EU market Illegal logging poses a significant threat, and undermines sustainable forest management and development. Illegal logging has been documented

  7. Calibration of a thin metal foil for infrared imaging video bolometer to estimate the spatial variation of thermal diffusivity using a photo-thermal technique

    SciTech Connect (OSTI)

    Pandya, Shwetang N., E-mail: pandya.shwetang@LHD.nifs.ac.jp; Sano, Ryuichi [The Graduate University of Advanced Studies, 322-6 Oroshi-cho, Toki 509-5292 (Japan)] [The Graduate University of Advanced Studies, 322-6 Oroshi-cho, Toki 509-5292 (Japan); Peterson, Byron J.; Mukai, Kiyofumi; Akiyama, Tsuyoshi; Watanabe, Takashi [National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292 (Japan)] [National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292 (Japan); Drapiko, Evgeny A. [Fusion Centre, 1, Akademika Kurchatova pl., Moscow 123182 (Russian Federation)] [Fusion Centre, 1, Akademika Kurchatova pl., Moscow 123182 (Russian Federation); Alekseyev, Andrey G. [Kurchatov Institute, 1, Akademika Kurchatova pl., Moscow 123182 (Russian Federation)] [Kurchatov Institute, 1, Akademika Kurchatova pl., Moscow 123182 (Russian Federation); Itomi, Muneji [Graduate School of Engineering, Hokkaido University, Kita-13, Nishi-8, Kita-ku, Sapporo 060-8628 (Japan)] [Graduate School of Engineering, Hokkaido University, Kita-13, Nishi-8, Kita-ku, Sapporo 060-8628 (Japan)

    2014-05-15T23:59:59.000Z

    A thin metal foil is used as a broad band radiation absorber for the InfraRed imaging Video Bolometer (IRVB), which is a vital diagnostic for studying three-dimensional radiation structures from high temperature plasmas in the Large Helical Device. The two-dimensional (2D) heat diffusion equation of the foil needs to be solved numerically to estimate the radiation falling on the foil through a pinhole geometry. The thermal, physical, and optical properties of the metal foil are among the inputs to the code besides the spatiotemporal variation of temperature, for reliable estimation of the exhaust power from the plasma illuminating the foil. The foil being very thin and of considerable size, non-uniformities in these properties need to be determined by suitable calibration procedures. The graphite spray used for increasing the surface emissivity also contributes to a change in the thermal properties. This paper discusses the application of the thermographic technique for determining the spatial variation of the effective in-plane thermal diffusivity of the thin metal foil and graphite composite. The paper also discusses the advantages of this technique in the light of limitations and drawbacks presented by other calibration techniques being practiced currently. The technique is initially applied to a material of known thickness and thermal properties for validation and finally to thin foils of gold and platinum both with two different thicknesses. It is observed that the effect of the graphite layer on the estimation of the thermal diffusivity becomes more pronounced for thinner foils and the measured values are approximately 2.53 times lower than the literature values. It is also observed that the percentage reduction in thermal diffusivity due to the coating is lower for high thermal diffusivity materials such as gold. This fact may also explain, albeit partially, the higher sensitivity of the platinum foil as compared to gold.

  8. The Borneo Project : Indonesia Fails to Stop Illegal Logging, Report Says Indonesia Fails to Stop Illegal Logging, Report Says

    E-Print Network [OSTI]

    The Borneo Project : Indonesia Fails to Stop Illegal Logging, Report Says Indonesia Fails to Stop Illegal Logging, Report Says by Irwan Firdaus, The Associated Press January 15th, 2003 JAKARTA, Indonesia -- Corruption in Indonesia's police and military has contributed to a surge in illegal logging that has

  9. Utility of spatially-resolved atmospheric pressure surface sampling and ionization techniques as alternatives to mass spectrometric imaging (MSI) in drug metabolism

    SciTech Connect (OSTI)

    Blatherwick, Eleanor Q. [University of Warwick, UK; Van Berkel, Gary J [ORNL; Pickup, Kathryn [AstraZeneca R& D Sweden; Johansson, Maria K. [AstraZeneca R& D Sweden; Beaudoin, Marie-Eve [AstraZeneca, USA; Cole, Roderic [ORNL; Day, Jennifer M. [AstraZeneca R& D, UK; Iverson, Suzanne [AstraZeneca R& D Sweden; Wilson, Ian D. [AstraZeneca R& D, UK; Scrivens, James H. [University of Warwick, UK; Weston, Daniel J. [AstraZeneca R& D, UK

    2011-01-01T23:59:59.000Z

    1. Tissue distribution studies of drug molecules play an essential role in the pharmaceutical industry and are commonly undertaken using quantitative whole body autoradiography (QWBA) methods. 2. The growing need for complementary methods to address some scientific gaps around radiography methods has led to increased use of mass spectrometric imaging (MSI) technology over the last 5 to 10 years. More recently, the development of novel mass spectrometric techniques for ambient surface sampling has redefined what can be regarded as fit-for-purpose for MSI in a drug metabolism and disposition arena. 3. Together with a review of these novel alternatives, this paper details the use of two liquid microjunction (LMJ)- based mass spectrometric surface sampling technologies. These approaches are used to provide qualitative determination of parent drug in rat liver tissue slices using liquid extraction surface analysis (LESA) and to assess the performance of a LMJ surface sampling probe (LMJ-SSP) interface for quantitative assessment of parent drug in brain, liver and muscle tissue slices. 4. An assessment of the utility of these spatially-resolved sampling methods is given, showing interdependence between mass spectrometric and QWBA methods, in particular there emerges a reason to question typical MSI workflows for drug metabolism; suggesting the expedient use of profile or region analysis may be more appropriate, rather than generating time-intensive molecular images of the entire tissue section.

  10. Log amplifier with pole-zero compensation

    DOE Patents [OSTI]

    Brookshier, W.

    1985-02-08T23:59:59.000Z

    A logarithmic amplifier circuit provides pole-zero compensation for improved stability and response time over 6-8 decades of input signal frequency. The amplifer circuit includes a first operational amplifier with a first feedback loop which includes a second, inverting operational amplifier in a second feedstock loop. The compensated output signal is provided by the second operational amplifier with the log elements, i.e., resistors, and the compensating capacitors in each of the feedback loops having equal values so that each break point is offset by a compensating break point or zero.

  11. Category:Caliper Log | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:EzfeedflagBiomassSustainableCSLInformationMissouri:Catalyst2-Mpage?Brophypage containsLog

  12. Category:Mud Logging | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, click here. Category:Conceptual ModelLists forMercury Vapor page?Logging page?

  13. Pressure Temperature Log | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation,Pillar Group BV Jump to: navigation,Power RentalAreas-|Log Jump to: navigation,

  14. Vertical Flowmeter Logging | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown of Ladoga,planningFlowmeter Logging Jump to: navigation, search OpenEI

  15. Development of radiohalogenated muscarinic ligands for the in vivo imaging of m-AChR by nuclear medicine techniques

    SciTech Connect (OSTI)

    McPherson, D.W.; Luo, H.; Knapp, F.F. Jr.

    1994-06-01T23:59:59.000Z

    Alterations in the density of acetylcholinergic muscarinic receptors (m-AChR) have been observed in various dementias. This has spurred interest in the development of radiohalogenated ligands which can be used for the non-invasive in vivo detection of m-AChR by nuclear medicine techniques. We have developed a new ligand 1-azabicyclo[2.2.2]oct-3-yl ({alpha}-hydroxy-{alpha}-(1-iodo-1-propen-3-yl)-{alpha}-phenylacetate (IQNP,12) which demonstrates high affinity for the muscarinic receptor. When labeled with radioiodine it has been shown to be selective and specific for m-ACHR. Initial studies on the separation and in vivo evaluation of the various isomers of IQNP have shown that the stereochemistry of the chiral centers and the configuration around the double bond play an important role in m-AChR subtype specificity. In vivo evaluation of these stereoisomers demonstrate that E-(R,R)-IQNP has a high affinity for the M{sub 1} muscarinic subtype while Z-(R,R)-IQNP demonstrate a high affinity for M{sub 1} and M{sub 2} receptor subtypes. These data demonstrate IQNP (12) has potential for use in the non-evasive in vivo detection of m-AChR by single photon emission computed tomography (SPECT). A brominated analogue, ``BrQNP,`` in which the iodine has been replaced by a bromine atom, has also been prepared and was shown to block the in vivo uptake of IQNP in the brain and heart and therefore has potential for positron emission tomographic (PET) studies of m-AChR.

  16. Dual excitation acoustic paramagnetic logging tool

    DOE Patents [OSTI]

    Vail, III, William B. (Bothell, WA)

    1989-01-01T23:59:59.000Z

    New methods and apparatus are disclosed which allow measurement of the presence of oil and water in gelogical formations using a new physical effect called the Acoustic Paramagnetic Logging Effect (APLE). The presence of petroleum in formation causes a slight increase in the earth's magnetic field in the vicinity of the reservoir. This is the phenomena of paramagnetism. Application of an acoustic source to a geological formation at the Larmor frequency of the nucleous present causes the paramagnetism of the formation to disappear. This results in a decrease in the earth's magnetic field in the vicinity of the oil bearing formation. Repetitively frequency sweeping the acoustic source through the Larmor frequency of the nucleons present (approx. 2 kHz) causes an amplitude modulation of the earth's magnetic field which is a consequence of the APLE. The amplitude modulation of the earth's magnetic field is measured with an induction coil gradiometer and provides a direct measure of the amount of oil and water in the excitation zone of the formation. The phase of the signal is used to infer the longitudinal relaxation times of the fluids present, which results in the ability in general to separate oil and water and to measure the viscosity of the oil present. Such measurements may be preformed in open boreholes and in cased well bores. The Dual Excitation Acoustic Paramagnetic Logging Tool employing two acoustic sources is also described.

  17. Dual excitation acoustic paramagnetic logging tool

    DOE Patents [OSTI]

    Vail, W.B. III.

    1989-02-14T23:59:59.000Z

    New methods and apparatus are disclosed which allow measurement of the presence of oil and water in geological formations using a new physical effect called the Acoustic Paramagnetic Logging Effect (APLE). The presence of petroleum in formation causes a slight increase in the earth's magnetic field in the vicinity of the reservoir. This is the phenomena of paramagnetism. Application of an acoustic source to a geological formation at the Larmor frequency of the nucleons present causes the paramagnetism of the formation to disappear. This results in a decrease in the earth's magnetic field in the vicinity of the oil bearing formation. Repetitively frequency sweeping the acoustic source through the Larmor frequency of the nucleons present (approx. 2 kHz) causes an amplitude modulation of the earth's magnetic field which is a consequence of the APLE. The amplitude modulation of the earth's magnetic field is measured with an induction coil gradiometer and provides a direct measure of the amount of oil and water in the excitation zone of the formation. The phase of the signal is used to infer the longitudinal relaxation times of the fluids present, which results in the ability in general to separate oil and water and to measure the viscosity of the oil present. Such measurements may be performed in open boreholes and in cased well bores. The Dual Excitation Acoustic Paramagnetic Logging Tool employing two acoustic sources is also described. 6 figs.

  18. Dewarless Logging Tool - 1st Generation

    SciTech Connect (OSTI)

    HENFLING,JOSEPH A.; NORMANN,RANDY A.

    2000-08-01T23:59:59.000Z

    This report focuses on Sandia National Laboratories' effort to create high-temperature logging tools for geothermal applications without the need for heat shielding. One of the mechanisms for failure in conventional downhole tools is temperature. They can only survive a limited number of hours in high temperature environments. For the first time since the evolution of integrated circuits, components are now commercially available that are qualified to 225 C with many continuing to work up to 300 C. These components are primarily based on Silicon-On-Insulator (SOI) technology. Sandia has developed and tested a simple data logger based on this technology that operates up to 300 C with a few limiting components operating to only 250 C without thermal protection. An actual well log to 240 C without shielding is discussed. The first prototype high-temperature tool measures pressure and temperature using a wire-line for power and communication. The tool is based around the HT83C51 microcontroller. A brief discussion of the background and status of the High Temperature Instrumentation program at Sandia, objectives, data logger development, and future project plans are given.

  19. Shippers in Indonesia fight decree on illegal logging Shippers in Indonesia fight decree on illegal logging

    E-Print Network [OSTI]

    Shippers in Indonesia fight decree on illegal logging Shippers in Indonesia fight decree on illegal on enforcing a new decree on the transportation of illegal timber. The Indonesian National Ship-owners Association says that the Indonesian government's proposal to impound ships carrying illegal timber would

  20. Annual Logging Symposium, June 22-26, 2013 MULTIDETECTOR LWD SIGMA LOGGING PRINCIPLES,

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    different detectors, environmental effects, and best practices. We analyze Monte Carlo simulations and test. A multidetector Logging-While-Drilling (LWD) Sigma design provides insight into the presence of invasion for a wide range of formations under typical LWD drilling conditions. Finally, a comparison is made of LWD

  1. Can reductions in logging damage increase carbon storage over time? Evaluation of a simulation model for a pilot carbon offset project in Malaysia

    SciTech Connect (OSTI)

    Pinard, M.A. [Univ. of Florida, Gainesville, FL (United States)

    1995-09-01T23:59:59.000Z

    Selective timber harvesting operations, if uncontrolled, can severely degrade a forest. Although techniques for reducing logging damage are well-known and inexpensive to apply, incentives to adopt these techniques are generally lacking. Power companies and other emitters of {open_quotes}greenhouse{close_quotes} gases soon may be forced to reduce or otherwise offset their net emissions; one offset option is to fund programs aimed at reducing logging damage. To investigate the consequences of reductions in logging damage for ecosystem carbon storage, I constructed a model to simulate changes in biomass and carbon pools following logging of primary dipterocarp forests in southeast Asia. I adapted a physiologically-driven, tree-based model of natural forest gap dynamics (FORMIX) to simulate forest recovery following logging. Input variables included stand structure, volume extracted, stand damage (% stems), and soil disturbance (% area compacted). Output variables included total biomass, tree density, and total carbon storage over time. Assumptions of the model included the following: (1) areas with soil disturbances have elevated probabilities of vine colonization and reduced rates of tree establishment, (2) areas with broken canopy but no soil disturbance are colonized initially by pioneer tree species and 20 yr later by persistent forest species, (3) damaged trees have reduced growth and increased mortality rates. Simulation results for two logging techniques, conventional and reduced-impact logging, are compared with data from field studies conducted within a pilot carbon offset project in Sabah, Malaysia.

  2. Log-Linear Models, MEMMs, and CRFs Michael Collins

    E-Print Network [OSTI]

    Yang, Junfeng

    labeled examples, {(xi, yi)}n i=1. The log-likelihood function is L(w) = n i=1 log p(yi|xi; w) We can think of L(w) as being a function that for a given w measures how well w explains the labeled examples a high value for L(w). The maximum-likelihood estimates are w = arg max wRd n i=1 log p(yi|xi; w

  3. Resistivity Log At Valles Caldera - Redondo Geothermal Area ...

    Open Energy Info (EERE)

    Et Al., 1987) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Resistivity Log At Valles Caldera - Redondo Geothermal Area (Rowley, Et Al., 1987)...

  4. Neutron Log At Valles Caldera - Redondo Geothermal Area (Rowley...

    Open Energy Info (EERE)

    1987) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Neutron Log At Valles Caldera - Redondo Geothermal Area (Rowley, Et Al., 1987) Exploration...

  5. Caliper Log At Valles Caldera - Redondo Geothermal Area (Rowley...

    Open Energy Info (EERE)

    Rowley, Et Al., 1987) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Caliper Log At Valles Caldera - Redondo Geothermal Area (Rowley, Et Al.,...

  6. Pressure Temperature Log At Valles Caldera - Redondo Geothermal...

    Open Energy Info (EERE)

    Pressure Temperature Log At Valles Caldera - Redondo Geothermal Area (Rowley, Et Al., 1987) Exploration Activity Details Location Valles Caldera - Redondo Geothermal Area...

  7. Portable GPS Baseband Logging Morgan Quigley, Stanford University

    E-Print Network [OSTI]

    Ng, Andrew Y.

    Portable GPS Baseband Logging Morgan Quigley, Stanford University Pieter Abbeel, Stanford Dennis Akos, University of Colorado Andrew Y. Ng, Stanford University BIOGRAPHY Morgan Quigley and Pieter

  8. Portable GPS Baseband Logging Morgan Quigley, Stanford University

    E-Print Network [OSTI]

    Stanford University

    Portable GPS Baseband Logging Morgan Quigley, Stanford University Pieter Abbeel, Stanford Dennis Akos, University of Colorado Andrew Y. Ng, Stanfod University BIOGRAPHY Morgan Quigley and Pieter

  9. Geophysical logs from water wells in the Yakima area, Washington

    SciTech Connect (OSTI)

    Biggane, J.H.

    1983-01-01T23:59:59.000Z

    The logs include: natural gamma, gamma gamma, neutron neutron, neutron gamma, caliper, fluid temperature, fluid resistivity, wall resistivity, spontaneous potential, and flow meter.

  10. Knowledge-based stratigraphic well-log correlation

    E-Print Network [OSTI]

    Denton, Michael A.

    1990-01-01T23:59:59.000Z

    represents the formations, and new rules for the knowledge-base that can correlate formations in reservoirs with secondary stratification. This expert system has correlated ovei' 3, 500 ft. of well-log data from three different types of rock sequences... inspirational support. TABLE OF CONTENTS Page ABSTRACT nl DEDICATION ACKNOWLEDGEMENT TABLE OF CONTENTS LIST OF TABLES x1 LIST OF FIGURES xl1 CHAPTER I ? INTRODUCTION 1. 1 Well-Logs 1. 2 Stratigraphic Well-Log Correlation . 1. 3 Well-Log Correlation...

  11. Well Log Data At Valles Caldera - Redondo Geothermal Area (Shevenell...

    Open Energy Info (EERE)

    to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Well Log Data At Valles Caldera - Redondo Geothermal Area (Shevenell, Et Al., 1988) Exploration...

  12. Compilation of network activity logs on a DECnet host

    SciTech Connect (OSTI)

    George, M.

    1987-07-01T23:59:59.000Z

    Log files are created for all incoming connection requests on a DECnet host. These log files contain connection data such as the requesting source, destination, and throughput. The procedures (referred to as collect software) outlined in this report, were written to collect these log files, to extract the essential information, and to condense the data into one-line records. The two VAX/VMS systems at SNLA that currently run these procedures compile network transaction logs on a weekly basis. This document is intended for VAX/VMS system managers who wish to install, and possibly modify, this software.

  13. Log-normal distribution for correlators in lattice QCD?

    E-Print Network [OSTI]

    Thomas DeGrand

    2012-04-20T23:59:59.000Z

    Many hadronic correlators used in spectroscopy calculations in lattice QCD simulations appear to show a log-normal distribution at intermediate time separations.

  14. Partnership Logging Accidents Cornelis de Hoop, LA Forest Products Lab

    E-Print Network [OSTI]

    Partnership Logging Accidents by Cornelis de Hoop, LA Forest Products Lab Albert Lefort Agreement 1998 & 1999 Accident Reports 25 injuries reported 185 loggers signed up 8 deaths 1999

  15. Pellet imaging techniques on ASDEX

    SciTech Connect (OSTI)

    Wurden, G.A. (Los Alamos National Lab., NM (USA)); Buechl, K.; Hofmann, J.; Lang, R.; Loch, R.; Rudyj, A.; Sandmann, W. (Max-Planck-Institut fuer Plasmaphysik, Garching (Germany, F.R.))

    1990-01-01T23:59:59.000Z

    As part of a USDOE/ASDEX collaboration, a detailed examination of pellet ablation in ASDEX with a variety of diagnostics has allowed a better understanding of a number of features of hydrogen ice pellet ablation in a plasma. In particular, fast gated photos with an intensified Xybion CCD video camera allow in-situ velocity measurements of the pellet as it penetrates the plasma. With time resolution of typically 100 nanoseconds and exposures every 50 microseconds, the evolution of each pellet in a multi-pellet ASDEX tokamak plasma discharge can be followed. When the pellet cloud track has striations, the light intensity profile through the cloud is hollow (dark near the pellet), whereas at the beginning or near the end of the pellet trajectory the track is typically smooth (without striations) and has a gaussian-peaked light emission profile. New, single pellet Stark broadened D{sub {alpha}}D{sub {beta}}, and D{sub {gamma}} spectra, obtained with a tangentially viewing scanning mirror/spectrometer with Reticon array readout, are consistent with cloud densities of 2 {times} 10{sup 17}cm{sup {minus}3} or higher in the regions of strongest light emission. A spatially resolved array of D{sub {alpha}} detectors shows that the light variations during the pellet ablation are not caused solely by a modulation of the incoming energy flux as the pellet crosses rational q-surfaces, but instead are a result of a dynamic, non-stationary, ablation process. 20 refs., 4 figs.

  16. Fundamentals of Image Processing

    E-Print Network [OSTI]

    Erdem, Erkut

    Fourier transform Log power spectrum #12;Review - The Convolution Theorem The Fourier transform components Fourier (1807): Periodic functions could be represented as a weighted sum of sines and cosines Image courtesy of Technology Review #12;Review - Fourier Transform We want to understand

  17. Muon tomography imaging algorithms for nuclear threat detection inside large volume containers with the Muon Portal detector

    E-Print Network [OSTI]

    Riggi, S; Bandieramonte, M; Becciani, U; Costa, A; La Rocca, P; Massimino, P; Petta, C; Pistagna, C; Riggi, F; Sciacca, E; Vitello, F

    2013-01-01T23:59:59.000Z

    Muon tomographic visualization techniques try to reconstruct a 3D image as close as possible to the real localization of the objects being probed. Statistical algorithms under test for the reconstruction of muon tomographic images in the Muon Portal Project are here discussed. Autocorrelation analysis and clustering algorithms have been employed within the context of methods based on the Point Of Closest Approach (POCA) reconstruction tool. An iterative method based on the log-likelihood approach was also implemented. Relative merits of all such methods are discussed, with reference to full Geant4 simulations of different scenarios, incorporating medium and high-Z objects inside a container.

  18. Explicit Expressions for Moments of Log Normal Order Statistics

    E-Print Network [OSTI]

    Sidorov, Nikita

    Explicit Expressions for Moments of Log Normal Order Statistics Saralees Nadarajah First version: 31 December 2006 Research Report No. 23, 2006, Probability and Statistics Group School of Mathematics, The University of Manchester #12;Explicit Expressions for Moments of Log Normal Order Statistics by Saralees

  19. Preprocessing and Mining Web Log Data for Web Personalization

    E-Print Network [OSTI]

    Ruggieri, Salvatore

    Preprocessing and Mining Web Log Data for Web Personalization M. Baglioni1 , U. Ferrara2 , A. Romei/26, 56017 S. Martino Ulmiano (PI) Italy ferrara@ksolutions.it Abstract. We describe the web usage mining behaviour of a web site users. The models are inferred from the access logs of a web server by means of data

  20. Illegal Logging and Illegal Activites in the Forestry Sector

    E-Print Network [OSTI]

    Illegal Logging and Illegal Activites in the Forestry Sector : Overview and Possible Issues, China #12;Quebec Wood Export Bureau Why Illegal logging and illegal activities ? ­ Threats for our export members companies ? · Unfair competition ? · New trade barriers ? Literature review ­ Data

  1. Survival Analysis of Click Logs Si-Chi Chin

    E-Print Network [OSTI]

    Street, Nick

    Survival Analysis of Click Logs Si-Chi Chin Information Science The University of Iowa Iowa City and Subject Descriptors: H.4 [Information Systems Applications]: Miscellaneous General Terms: Theory Keywords: Clickthrough Logs, Kaplan-Meier Survival Anal- ysis, Click Curve Visualization 1. INTRODUCTION AND DATASET

  2. Logging anomalies key to 100-bcf, shallow gas play

    SciTech Connect (OSTI)

    Cook, P.L. Jr. (Cook Energy, Inc. (US)); Scheneeflock, R.D.; Bush, J.D.; Marble, J.C. (Paramount Petroleum Co., Inc., Jackson, MI (US))

    1991-09-01T23:59:59.000Z

    The upper cretaceous Eutaw formation of Mississippi has produced almost 2 Tcf of gas since its initial discovery at Gwinville field in 1944. Prior to the discovery of Trimble field in 1988, the last major Eutaw gas discovery in Mississippi was at Maxie-Pistol Ridge field in 1951. Consequently, the Trimble discovery is the most important shallow gas find in the Interior Salt Basin in nearly 40 years. Trimble field now contains 21 wells, with gas reserves in excess of 100 bcfg and maximum daily production averaging 42 MMcfd. As of January 1991, Trimble field has produced 12.2 Bcfg and 67,688 bbl condensate from 21 wells. Annual gas production for 1991 is expected to be 12 Bcfg. This article focuses on the log evaluation techniques developed to aid in the recognition of the low-resistivity Eutaw pay. Trimble field is an excellent example of how an anomalous set of occurrences in a trend can lead to new exploration opportunities. For a more detailed look at this case study, readers are referred to the 1990 Transaction of the Gulf Coast Association of Geological Societies annual meeting.

  3. Massively-parallel electrical-conductivity imaging of hydrocarbons using the Blue Gene/L supercomputer

    E-Print Network [OSTI]

    2008-01-01T23:59:59.000Z

    CONDUCTIVITY IMAGING OF HYDROCARBONS USING THE BLUE GENE/Lidentification of hydrocarbon filled layers in deepwater,Remote sensing of hydrocarbon layers by seabed logging (

  4. Geothermal well log interpretation state of the art. Final report

    SciTech Connect (OSTI)

    Sanyal, S.K.; Wells, L.E.; Bickham, R.E.

    1980-01-01T23:59:59.000Z

    An in-depth study of the state of the art in Geothermal Well Log Interpretation has been made encompassing case histories, technical papers, computerized literature searches, and actual processing of geothermal wells from New Mexico, Idaho, and California. A classification scheme of geothermal reservoir types was defined which distinguishes fluid phase and temperature, lithology, geologic province, pore geometry, salinity, and fluid chemistry. Major deficiencies of Geothermal Well Log Interpretation are defined and discussed with recommendations of possible solutions or research for solutions. The Geothermal Well Log Interpretation study and report has concentrated primarily on Western US reservoirs. Geopressured geothermal reservoirs are not considered.

  5. Respiratory Amplitude Guided 4-Dimensional Magnetic Resonance Imaging

    SciTech Connect (OSTI)

    Hu, Yanle, E-mail: yhu@radonc.wustl.edu [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri (United States)] [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri (United States); Caruthers, Shelton D. [Department of Medicine, Washington University School of Medicine, St. Louis, Missouri (United States)] [Department of Medicine, Washington University School of Medicine, St. Louis, Missouri (United States); Low, Daniel A. [Department of Radiation Oncology, University of California Los Angeles, Los Angeles, California (United States)] [Department of Radiation Oncology, University of California Los Angeles, Los Angeles, California (United States); Parikh, Parag J.; Mutic, Sasa [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri (United States)] [Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri (United States)

    2013-05-01T23:59:59.000Z

    Purpose: To evaluate the feasibility of prospectively guiding 4-dimensional (4D) magnetic resonance imaging (MRI) image acquisition using triggers at preselected respiratory amplitudes to achieve T{sub 2} weighting for abdominal motion tracking. Methods and Materials: A respiratory amplitude-based triggering system was developed and integrated into a commercial turbo spin echo MRI sequence. Initial feasibility tests were performed on healthy human study participants. Four respiratory states, the middle and the end of inhalation and exhalation, were used to trigger 4D MRI image acquisition of the liver. To achieve T{sub 2} weighting, the echo time and repetition time were set to 75 milliseconds and 4108 milliseconds, respectively. Single-shot acquisition, together with parallel imaging and partial k-space imaging techniques, was used to improve image acquisition efficiency. 4D MRI image sets composed of axial or sagittal slices were acquired. Results: Respiratory data measured and logged by the MRI scanner showed that the triggers occurred at the appropriate respiratory levels. Liver motion could be easily observed on both 4D MRI image datasets by sensing either the change of liver in size and shape (axial) or diaphragm motion (sagittal). Both 4D MRI image datasets were T{sub 2}-weighted as expected. Conclusions: This study demonstrated the feasibility of achieving T{sub 2}-weighted 4D MRI images using amplitude-based respiratory triggers. With the aid of the respiratory amplitude-based triggering system, the proposed method is compatible with most MRI sequences and therefore has the potential to improve tumor-tissue contrast in abdominal tumor motion imaging.

  6. Lensless Imaging of Magnetic Nanostructures

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

    this technique has been especially popular in imaging such complex structures as aerogels and yeast cells. When applying the CDI technique to a magnetic system, the same...

  7. Log-domain circuit models of chemical reactions

    E-Print Network [OSTI]

    Mandal, Soumyajit

    We exploit the detailed similarities between electronics and chemistry to develop efficient, scalable bipolar or subthreshold log-domain circuits that are dynamically equivalent to networks of chemical reactions. Our ...

  8. Selecting The Optimal Logging Suite For Geothermal Reservoir...

    Open Energy Info (EERE)

    Selecting The Optimal Logging Suite For Geothermal Reservoir Evaluation- Results From The Alum 25-29 Well, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library...

  9. Multipole seismoelectric logging while drilling (LWD) for acoustic velocity measurements

    E-Print Network [OSTI]

    Zhu, Zhenya

    2012-01-01T23:59:59.000Z

    In seismoelectric well logging, an acoustic wave propagates along a borehole and induces electrical signals along the borehole wall. The apparent velocities of these seismoelectric signals are equal to the formation ...

  10. JOBAID-LOGGING IN TO THE OLC LEARNING SYSTEM

    Broader source: Energy.gov [DOE]

    In this job aid you will Log In to the system, Retrieve Forgotten Password and/or User ID, and Use the LMS Help System built into the application.

  11. Secured Pace Web Server with Collaboration and Error Logging Capabilities

    E-Print Network [OSTI]

    Tao, Lixin

    : Secure Sockets Layer (SSL) using the Java Secure Socket Extension (JSSE) API, error logging............................................................................................ 8 Chapter 3 Secure Pace Web Server with SSL........................................................... 29 3.1 Introduction to SSL

  12. VEHICLE USAGE LOG Department ________________________________________ Vehicle Homebase ____________________________ Week Ended (Sunday) _________________

    E-Print Network [OSTI]

    Yang, Zong-Liang

    VEHICLE USAGE LOG Department ________________________________________ Vehicle Homebase ____________________________ Week Ended (Sunday) _________________ Door #____________ License Plate ____________________ Vehicle/Supplies (Enter Description such as grade sheets, artifacts, money, etc.) 6. Taking vehicle to Automotive Shop

  13. Fluid-Rock Characterization and Interactions in NMR Well Logging

    SciTech Connect (OSTI)

    Hirasaki, George J.; Mohanty, Kishore K.

    2003-02-10T23:59:59.000Z

    The objective of this project was to characterize the fluid properties and fluid-rock interactions which are needed for formation evaluation by NMR well logging. NMR well logging is finding wide use in formation evaluation. The formation parameters commonly estimated were porosity, permeability, and capillary bound water. Special cases include estimation of oil viscosity, residual oil saturation, location of oil/water contact, and interpretation on whether the hydrocarbon is oil or gas.

  14. Fluid-Rock Characterization and Interactions in NMR Well Logging

    SciTech Connect (OSTI)

    Hirasaki, George J.; Mohanty, Kishore K.

    2003-02-10T23:59:59.000Z

    The objective of this project was to characterize the fluid properties and fluid-rock interactions that are needed for formation evaluation by NMR well logging. The advances made in the understanding of NMR fluid properties are summarized in a chapter written for an AAPG book on NMR well logging. This includes live oils, viscous oils, natural gas mixtures, and the relation between relaxation time and diffusivity.

  15. Calculation of sensitivity coefficients for a neutron well logging tool

    E-Print Network [OSTI]

    Chen, Chien-Hsiang

    1993-01-01T23:59:59.000Z

    OF SCIENCE August 1993 Major Subject: Nuclear Engineering CALCULATION OF SENSITIVITY COEFFICIENTS FOR A NEUTRON WELL LOGGING TOOL A Thesis by CHIEN-HSIANG CHEN Approved as to style and content by: Theodore A. Parish (Chair of Committee) Ron R. Hart... to calculate sensitivity coefficients. A benchmark problem for a neutron porosity logging tool was set up to test the methodology mentioned above. Through several tests and calculations of sensitivity coefficients, it was found that the response...

  16. SU-E-J-39: Comparison of PTV Margins Determined by In-Room Stereoscopic Image Guidance and by On-Board Cone Beam Computed Tomography Technique for Brain Radiotherapy Patients

    SciTech Connect (OSTI)

    Ganesh, T; Paul, S; Munshi, A; Sarkar, B; Krishnankutty, S; Sathya, J; George, S; Jassal, K; Roy, S; Mohanti, B [Fortis Memorial Research Institute, Gurgaon (India)

    2014-06-01T23:59:59.000Z

    Purpose: Stereoscopic in room kV image guidance is a faster tool in daily monitoring of patient positioning. Our centre, for the first time in the world, has integrated such a solution from BrainLAB (ExacTrac) with Elekta's volumetric cone beam computed tomography (XVI). Using van Herk's formula, we compared the planning target volume (PTV) margins calculated by both these systems for patients treated with brain radiotherapy. Methods: For a total of 24 patients who received partial or whole brain radiotherapy, verification images were acquired for 524 treatment sessions by XVI and for 334 sessions by ExacTrac out of the total 547 sessions. Systematic and random errors were calculated in cranio-caudal, lateral and antero-posterior directions for both techniques. PTV margins were then determined using van Herk formula. Results: In the cranio-caudal direction, systematic error, random error and the calculated PTV margin were found to be 0.13 cm, 0.12 cm and 0.41 cm with XVI and 0.14 cm, 0.13 cm and 0.44 cm with ExacTrac. The corresponding values in lateral direction were 0.13 cm 0.1 cm and 0.4 cm with XVI and 0.13 cm, 0.12 cm and 0.42 cm with ExacTrac imaging. The same parameters for antero-posterior were for 0.1 cm, 0.11 cm and 0.34 cm with XVI and 0.13 cm, 0.16 cm and 0.43 cm with ExacTrac imaging. The margins estimated with the two imaging modalities were comparable within 1 mm limit. Conclusion: Verification of setup errors in the major axes by two independent imaging systems showed the results are comparable and within 1 mm. This implies that planar imaging based ExacTrac can yield equal accuracy in setup error determination as the time consuming volumetric imaging which is considered as the gold standard. Accordingly PTV margins estimated by this faster imaging technique can be confidently used in clinical setup.

  17. assistant-based clinical log: Topics by E-print Network

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

    Renewable Energy Websites Summary: to endorse or advertise a commercial product or company. 12;Gentle Logging System Evaluation (ParticipantsGentle Logging System...

  18. Instructions for using Power Scan 2000 1. If you are an authorized University of Memphis user, log in with your UUID and

    E-Print Network [OSTI]

    Memphis, University of

    in with your UUID and password. Once logged in, you can save items to the desktop and then transfer the file, or saved to a removable storage device. To print, guests should click on Go Print. The print job will go Rotate Mirror Straighten #12;To scan an image for printing/saving, drag the green box to frame the page

  19. User's manual for geophysical well-logging software programs

    SciTech Connect (OSTI)

    Petrie, G.M.; Gibson, D.; Blair, S.C.

    1983-02-01T23:59:59.000Z

    Since 1958 the Ground-Water Surveillance Program for the Hanford Site has made geophysical logging measurements in most of the 800 wells and deep boreholes that have been drilled on the Hanford Site. In 1980 the Pacific Northwest Laboratory (PNL), which conducts the Ground-Water Surveillance Program, began forming a computerized data base for storing and retrieving geophysical well log data and developing software for quantitative analysis of the well log data. This report, designed to serve as a user's guide, documents the data base system that handles the well log data. Two programs, DIGLOG1 and LOGIT, are used to manipulate the data. The program DIGLOG1 translates analog paper strip charts into digital format; the program LOGIT is a general utility program that edits, displays, checks, stores, writes, and deletes sets of well log data. These two programs do not provide sophisticated display and analytical capabilities; rather, they provide programs that give the user easy access to powerful standard analytical software.

  20. April 2002 Page 1 of 6 Export credits: Fuelling illegal logging

    E-Print Network [OSTI]

    April 2002 Page 1 of 6 Export credits: Fuelling illegal logging Export Credit Agencies (ECAs and indirectly to illegal logging. This briefing note details the relationship between ECAs and illegal logging and argues that, in order to address the problem of illegal logging, the EU cannot limit its activities

  1. Strategies to Combat Illegal Logging and Forest Crime Magnitude of the problem

    E-Print Network [OSTI]

    Strategies to Combat Illegal Logging and Forest Crime Magnitude of the problem Illegal logging estimated illegal logging as equal or exceeding the legal harvest rates in a number of countries including percent), Myanmar (80 percent), and Cambodia (94 percent). However, illegal logging is not limited

  2. System Problem Detection by Mining Console Logs Electrical Engineering and Computer Sciences

    E-Print Network [OSTI]

    Xu, Wei

    for mining console logs using a combination of program analysis, information retrieval, data mining logs. We then extract features, such as execution traces, from logs and use data mining and machineSystem Problem Detection by Mining Console Logs Wei Xu Electrical Engineering and Computer Sciences

  3. Proposed geologic model based on geophysical well logs

    SciTech Connect (OSTI)

    Diaz C, S.; Puente C, I.; de la Pena L, A.

    1981-01-01T23:59:59.000Z

    An investigation of the subsurface based on a qualitative interpretation of well logs was carried out at Cerro Prieto to obtain information on the distribution of the different lithofacies that make up a deltaic depositional system. The sedimentological interpretation derived from the resistivity and spontaneous potential are shown in several cross-sections of the field. In addition to the sedimentological interpretation, a map of the structural geology of the region based on well logs and available geophysical information was prepared, including the results of gravity and seismic refraction surveys. The depth to the zone of hydrothermal alteration described by Elders (1980) was found by means of temperature, electrical, and radioactive logs. Two maps showing the configuration of the top of this anomaly show a clear correlation with the gravity anomalies found in the area.

  4. Image Processing Apr. 16, 2012

    E-Print Network [OSTI]

    Erdem, Erkut

    - The Discrete Fourier transform Log power spectrum #12;Review - The Convolution Theorem The Fourier frequency components Fourier (1807): Periodic functions could be represented as a weighted sum of sines and cosines Image courtesy of Technology Review #12;Review - Fourier Transform We want

  5. Correlation of log response to production in the Austin Chalk

    E-Print Network [OSTI]

    Behseresht, Cyrus Douglas

    1992-01-01T23:59:59.000Z

    of this study is to determine to what degree the response of resistivity well-logs reflects the productivity of individual wells in the Austin Chalk. An area in south-central Burleson County was chosen for the study. Logs were available from 38 wells... for the Proco Gise data, Ro at 4% is 3. 59 ohm-m (figure 12). Thus, the Proco Gise ?1 data supports an Ro of approximately 3. 58 at 4% porosity in the Austin Chalk. This test of the empirical relationship between Rt and water saturation in the Chalk does...

  6. activation analysis technique: Topics by E-print Network

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

    Summary: Geography 478 Techniques of Remote Sensing Image Analysis (Earth Observation System Science) Dr of Remote Sensing Image Analysis (Earth Observation System Science) Remote...

  7. activation analysis techniques: Topics by E-print Network

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

    Summary: Geography 478 Techniques of Remote Sensing Image Analysis (Earth Observation System Science) Dr of Remote Sensing Image Analysis (Earth Observation System Science) Remote...

  8. The thermal maturation degree of organic matter from source rocks revealed by wells logs including examples from Murzuk Basin, Libya

    SciTech Connect (OSTI)

    Negoita, V.; Gheorghe, A.

    1995-08-01T23:59:59.000Z

    The customary technique used to know the organic matter quantity per rock volume it as well as the organic matter maturation stage is based on geochemical analyses accomplished on a preselected number of samples and cuttings drawn from boreholes during the drilling period. But the same objectives can be approached without any extra cost using the continuous measurements of well logs recorded in each well from the ground surface to the total depth. During the diagenetic stage, the identification of potential source rocks out of which no hydrocarbon have been generated may be carried out using a well logging suite including Gamma Ray Spectrometry, the Compensated Neutron/Litho Density combination and a Dual Induction/Sonic Log. During the catagenetic stage the onset of oil generation brings some important changes in the organic matter structure as well as in the fluid distribution throughout the pore space of source rocks. The replacement of electric conductive water by electric non-conductive hydrocarbons, together with water and oil being expelled from source rocks represent a process of different intensities dependent of time/temperature geohistory and kerogen type. The different generation and expulsion scenarios of hydrocarbons taking place during the catagenetic and metagenetic stages of source rocks are very well revealed by Induction and Laterolog investigations. Several crossplots relating vitrinite reflectance, total organic carbon and log-derived physical parameters are illustrated and discussed. The field applications are coming from Murzuk Basin, where Rompetrol of Libya is operating.

  9. Identification and Characterization of Hydrogeologic Units at the Nevada Test Site Using Geophysical Logs: Examples from the Underground Test Area Project

    SciTech Connect (OSTI)

    Lance Prothro, Sigmund Drellack, Margaret Townsend

    2009-03-25T23:59:59.000Z

    The diverse and complex geology of the Nevada Test Site region makes for a challenging environment for identifying and characterizing hydrogeologic units penetrated by wells drilled for the U.S. Department of Energy, National Nuclear Security Administration, Underground Test Area (UGTA) Environmental Restoration Sub-Project. Fortunately, UGTA geoscientists have access to large and robust sets of subsurface geologic data, as well as a large historical knowledge base of subsurface geological analyses acquired mainly during the underground nuclear weapons testing program. Of particular importance to the accurate identification and characterization of hydrogeologic units in UGTA boreholes are the data and interpretation principles associated with geophysical well logs. Although most UGTA participants and stakeholders are probably familiar with drill hole data such as drill core and cuttings, they may be less familiar with the use of geophysical logs; this document is meant to serve as a primer on the use of geophysical logs in the UGTA project. Standard geophysical logging tools used in the UGTA project to identify and characterize hydrogeologic units are described, and basic interpretation principles and techniques are explained. Numerous examples of geophysical log data from a variety of hydrogeologic units encountered in UGTA wells are presented to highlight the use and value of geophysical logs in the accurate hydrogeologic characterization of UGTA wells.

  10. advanced imaging catheter: Topics by E-print Network

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

    Summary: Image segmentation is very essential and critical to image processing and pattern recognition. This survey provides a summary of color image segmentation techniques...

  11. angiographic image segmentation: Topics by E-print Network

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

    Summary: Image segmentation is very essential and critical to image processing and pattern recognition. This survey provides a summary of color image segmentation techniques...

  12. automatic image segmentation: Topics by E-print Network

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

    Summary: Image segmentation is very essential and critical to image processing and pattern recognition. This survey provides a summary of color image segmentation techniques...

  13. Subsistence Halibut Community Harvest Log Page 1 of 4

    E-Print Network [OSTI]

    -0512, Expiration date: 07/31/2014 Subsistence Halibut Community Harvest Permit (CHP) Log U.S. Dept of Commerce-1668 Telephone: 1-800-304-4846 FAX: 907-586-7354 BLOCK A ­ CHP COORDINATOR 1. Name of CHP Coordinator 2. Signature of CHP Coordinator BLOCK B -- SUBSISTENCE FISHER IDENTIFICATION 1. Name of Fisher (First, Middle

  14. TEAM CAPTAIN'S LOG Team Captain's Name: Team Name

    E-Print Network [OSTI]

    MKT-3131 D TEAM CAPTAIN'S LOG Team Captain's Name: Team Name: Team Captain's Phone Number: County. Enter information online at http://walkacrosstexas.tamu.edu. Record your team members= total weekly mileage (and pounds lost, if recorded) and enter online. In Week 7, remind your team members to complete

  15. Estimating the Service Time of Web Clients using Server Logs

    E-Print Network [OSTI]

    Freitag, Felix

    Estimating the Service Time of Web Clients using Server Logs Oscar Ardaiz Dep. Arquitectura de Freitag Dep. Arquitectura de Computadores Universidad Politécnica de Catalunya Jordi Girona, 1­3, Barcelona (España) felix@ac.upc.es Leandro Navarro Dep. Arquitectura de Computadores Universidad Politécnica

  16. DARK ENERGY FROM THE LOG-TRANSFORMED CONVERGENCE FIELD

    SciTech Connect (OSTI)

    Seo, Hee-Jong [Berkeley Center for Cosmological Physics, LBL and Department of Physics, University of California, Berkeley, CA 94720 (United States); Sato, Masanori [Department of Physics, Nagoya University, Nagoya 464-8602 (Japan); Takada, Masahiro [Institute for the Physics and Mathematics of the Universe (IPMU), University of Tokyo, Chiba 277-8582 (Japan); Dodelson, Scott, E-mail: hee-jongseo@lbl.gov [Center for Particle Astrophysics, Fermi National Accelerator Laboratory, Batavia, IL 60510 (United States)

    2012-03-20T23:59:59.000Z

    A logarithmic transform of the convergence field improves 'the information content', i.e., the overall precision associated with the measurement of the amplitude of the convergence power spectrum, by improving the covariance matrix properties. The translation of this improvement in the information content to that in cosmological parameters, such as those associated with dark energy, requires knowing the sensitivity of the log-transformed field to those cosmological parameters. In this paper, we use N-body simulations with ray tracing to generate convergence fields at multiple source redshifts as a function of cosmology. The gain in information associated with the log-transformed field does lead to tighter constraints on dark energy parameters, but only if shape noise is neglected. The presence of shape noise quickly diminishes the advantage of the log-mapping, more quickly than we would expect based on the information content. With or without shape noise, using a larger pixel size allows for a more efficient log-transformation.

  17. Condition and fate of logged forests in the Brazilian Amazon

    E-Print Network [OSTI]

    Camara, Gilberto

    Ecology, Carnegie Institution of Washington, Stanford, CA 94305; U.S. Department of Agriculture Forest resulted in high levels of canopy damage suffi- cient to leave forests susceptible to drought and fire. We the management regimes in effect at the time of our study in the Brazilian Amazon, selective logging would

  18. Lawson Job Description Acknowledgment Verification Instructions Log In to Lawson

    E-Print Network [OSTI]

    Gleeson, Joseph G.

    Lawson Job Description Acknowledgment Verification Instructions Log In to Lawson o Lawson Web Lawson e-mail your password to you. Updated 3/15/10 Page 1 of 3 #12;Lawson Job Description Acknowledgment Verification Instructions Click "Employee's Sign-off of their Job Description" Click "Employee's Sign

  19. Lawson Job Description Acknowledgment Instructions Log In to Lawson

    E-Print Network [OSTI]

    Gleeson, Joseph G.

    Lawson Job Description Acknowledgment Instructions Log In to Lawson o Lawson Web Address: - https. Updated 3/15/10 Page 1 of 6 #12;Lawson Job Description Acknowledgment Instructions Click "My Job Description" Click "My Job Description" from the Employee Central section of your home page o "My Job

  20. Although logging is usually highly selective, inadequate operational techniques often mean that significant

    E-Print Network [OSTI]

    .Thishasledtoaparadoxicalsituation inwhichthesfmpracticesdemonstratedbyresearchhavebeen incorporatedintoforestmanagementregulationsbut,inpractice, timber companies do not follow them of timber companies.Thiswasdeemedespeciallyimportantintheeastern Amazon,the most important timber):Sustainable managementofproductionforestsatthecommercialscaleinthe BrazilianAmazon--PhaseI.Thiswastobeansfmdemonstration project involving two local timber companies

  1. Well Log Techniques At Snake River Plain Region (DOE GTP) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwideWTED Jump to:Ohio: EnergyWebGenWelcome Sample

  2. Well Log Techniques At Newberry Caldera Area (DOE GTP) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTri GlobalJump to: navigation,Goff, 2002) |Weedpatch,WelcomeInformation

  3. Well Log Techniques At Raft River Geothermal Area (1977) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTri GlobalJump to: navigation,Goff, 2002)

  4. Peru: Illegal Mahogany Logging Continues in Reserve for Uncontacted Tribes Widespread illegal mahogany logging continues inside Peru's Muruanahua Territorial Reserve

    E-Print Network [OSTI]

    Peru: Illegal Mahogany Logging Continues in Reserve for Uncontacted Tribes Widespread illegal, indicating the settlement continues to be used as a transport center for mahogany illegally removed from and Park, loggers cut the trees into large boards with chainsaws. Because chainsawing mahogany is illegal

  5. Magnetic Imaging Wolfgang Kuch

    E-Print Network [OSTI]

    Kuch, Wolfgang

    Magnetic Imaging Wolfgang Kuch Freie Universit¨at Berlin, Institut f¨ur Experimentalphysik, Arnimallee 14, 14195 Berlin, Germany kuch@physik.fu-berlin.de Abstract. Imaging of magnetic domains has- ern techniques is used nowadays routinely for magnetic imaging of magnetic ma- terials

  6. Export premium: Why some logs are worth more abroad. Forest Service research paper

    SciTech Connect (OSTI)

    Flora, D.F.; McGinnis, W.J.; Lane, C.L.

    1993-07-01T23:59:59.000Z

    Throughout a century of log exports from the Pacific Northwest, export logs have been associated with higher prices than logs sold in the domestic market. Conventional wisdom currently maintains this perception that any export log is worth more than its domestic counterpart. The export-domestic difference, or export premium, seems to belie reason. Why would foreign buyers be willing to pay more than U.S. customers for the same log. In reality, do they. If they do, why do offshore purchasers not shift to inland logs, so that the premium would dwindle. Discussed here are circumstances that do and do not foster a continuing export premium.

  7. Going off grid: Computationally efficient inference for log-Gaussian Cox processes

    E-Print Network [OSTI]

    Simpson, Daniel; Lindgren, Finn; Srbye, Sigrunn; Rue, Hvard

    2011-01-01T23:59:59.000Z

    In this paper we introduce a new method for performing computational inference on log-Gaussian Cox processes (LGCP). Contrary to current practice, we do not approximate by a counting process on a partition of the domain, but rather attack the point process likelihood directly. In order to do this, we use the continuously specified Markovian random fields introduced by \\citet{Lindgren2011}. The inference is performed using the \\texttt{R-INLA} package of \\citet{art451}, which allows us to perform fast approximate inference on quite complicated models. The new method is tested on a real point pattern data set as well as two interesting extensions to the classical LGCP framework. The first extension considers the very real problem of variable sampling effort throughout the observation window and implements the method of \\citet{Chakraborty2011}. The second extension moves beyond what is possible with current techniques and constructs a log-Gaussian Cox process on the world's oceans. Code for the examples can be fo...

  8. Mortality of regeneration during skyline logging of a shelterwood overstory

    SciTech Connect (OSTI)

    Tesch, S.D.; Lysne, D.H.; Mann, J.W.; Helgerson, O.T.

    1986-01-01T23:59:59.000Z

    The overstorey was felled in July and August 1980 on a 9-ha site on a 65% slope near Medford, Oregon, where a single regeneration cut was made in 1977 and the area was underplanted with Douglas fir and ponderosa pine in 1978. Before logging, seedlings (height 5-400 cm) were found on 35% of sample plots. Felling killed 22% of seedlings. Yarding using a running skyline yarder with a mechanical slack-pulling carriage killed 28% of seedlings that survived felling. Mortality was least in the 61-100 cm height class. It is concluded that a logging plan that minimizes corridor width and number of corridors converging at a single landing gives the best distribution of seedlings after the final cut. 2 references.

  9. Knowledge-based stratigraphic well-log correlation

    E-Print Network [OSTI]

    Denton, Michael A.

    1990-01-01T23:59:59.000Z

    correlated higher ranking strata. Thus, higher ranking correlations provide heuristics for lower ranking correlations. The system represents strata by symbols from a set of standard symbols which include peaks, troughs, and steps. Symbols replace events.... The zone attributes abstracted from the well-log include the following: interval, lithology ? classified as shale or non-shale, zone position, general zone shape, thickness, average amplitude, zone above name, and zone below name. Thus, the expert system...

  10. An expert system advisor for well log quality control

    E-Print Network [OSTI]

    Warnken, Dean Kennedy

    1988-01-01T23:59:59.000Z

    funda- mental tool in the evaluation of petroleum reservoirs. Wireline well logging involves undergrourR measurement of various rock and fluid properties. These meas~ts are usually recorded with a downhole sonde and ~tted to the surface through a... expert systems, has proven to be an effective com- puterized problem solving tool in many oilfield applications. Expert systems strive to mimic an ~'s reasoning process when performing a highly specialized task. Expert system problem solvirg combines...

  11. Imaging and sensing based on muon tomography

    DOE Patents [OSTI]

    Morris, Christopher L; Saunders, Alexander; Sossong, Michael James; Schultz, Larry Joe; Green, J. Andrew; Borozdin, Konstantin N; Hengartner, Nicolas W; Smith, Richard A; Colthart, James M; Klugh, David C; Scoggins, Gary E; Vineyard, David C

    2012-10-16T23:59:59.000Z

    Techniques, apparatus and systems for detecting particles such as muons for imaging applications. Subtraction techniques are described to enhance the processing of the muon tomography data.

  12. Stratigraphic correlation of well logs using relational tree

    SciTech Connect (OSTI)

    Fang, J.H.; Tsay, F.; Lai, P.F.

    1986-05-01T23:59:59.000Z

    A heuristic waveform correlation scheme of well logs is based on a relational tree matching. Waveforms (well logs) are represented in a data structure known as a relational tree. A relational tree provides a complete description of the contextural relationships, as defined by peaks and valleys of the waveforms. The correlational scheme consists of a distance-measuring process using all possible peak attributes. First, a distance function is defined for any two nodes in terms of peak attributes. To find the best match for a given node of a given waveform, the authors measure the distance between the given node and each node from a predefined subset of the second waveform. The closest one is considered to be the matched node. The process is repeated for every node in the waveform. This quantitative correlation method has been implemented and tested with well logs from the Black Warrior basin, north Alabama. Results showed that the procedure has the capability of handling the thickening and thinning strata, as well as missing intervals.

  13. Imaging with Scattered Neutrons

    E-Print Network [OSTI]

    H. Ballhausen; H. Abele; R. Gaehler; M. Trapp; A. Van Overberghe

    2006-10-30T23:59:59.000Z

    We describe a novel experimental technique for neutron imaging with scattered neutrons. These scattered neutrons are of interest for condensed matter physics, because they permit to reveal the local distribution of incoherent and coherent scattering within a sample. In contrast to standard attenuation based imaging, scattered neutron imaging distinguishes between the scattering cross section and the total attenuation cross section including absorption. First successful low-noise millimeter-resolution images by scattered neutron radiography and tomography are presented.

  14. What is a blog? The word "blog," a contraction of "web log," is an informational web

    E-Print Network [OSTI]

    Zhou, Pei

    What is a blog? The word "blog," a contraction of "web log," is an informational web page's log, blogs on the web tend to maintain an ordered chronology, although they often unfold in reverse

  15. TITANium Quick Tips How to log into TITANium and enter a Community

    E-Print Network [OSTI]

    de Lijser, Peter

    TITANium Quick Tips How to log into TITANium and enter a Community: 1. Log into your portal with your user name and password. 2. Click on the TITANium tab. 3. Click on TITANium Communities 4 navigating TITANium Communities. #12;

  16. CONTROLLING THE INTERNATIONAL TRADE IN ILLEGALLY LOGGED TIMBER AND WOOD PRODUCTS

    E-Print Network [OSTI]

    CONTROLLING THE INTERNATIONAL TRADE IN ILLEGALLY LOGGED TIMBER AND WOOD PRODUCTS A study prepared@riia.org February 2002 #12;Controlling the international trade in illegally logged timber and wood products Page 2...................................................................................................................... 11 ILLEGAL ACTIVITIES IN THE FOREST SECTOR

  17. ForPeerReview Interpretation of hydraulic rock types with resistivity logs in

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    Subject Areas: Borehole and log interpretation, Integrated workflows and best practices (with broad hydraulic rock types. Core data and well logs acquired from a deep-drilling exploration well penetrating

  18. Boise State University Automobile Use Mileage Log (Documentation for Business Miles)

    E-Print Network [OSTI]

    Barrash, Warren

    Boise State University Automobile Use Mileage Log (Documentation for Business Miles) Rev. 03 University Automobile Use Mileage Log (Documentation for Business Miles) Rev. 03/10 PAGE ____ (IF YOU NEED

  19. Chemical Imaging Analysis of Environmental Particles Using the Focused Ion Beam/Scanning Electron Microscopy Technique: Microanalysis Insights into Atmospheric Chemistry of Fly Ash

    SciTech Connect (OSTI)

    Chen, Haihan; Grassian, Vicki H.; Saraf, Laxmikant V.; Laskin, Alexander

    2013-01-21T23:59:59.000Z

    Airborne fly ash from coal combustion may represent a source of bioavailable iron (Fe) in the open ocean. However, few studies have been made focusing on Fe speciation and distribution in coal fly ash. In this study, chemical imaging of fly ash has been performed using a dual-beam FIB/SEM (focused ion beam/scanning electron microscope) system for a better understanding of how simulated atmospheric processing modify the morphology, chemical compositions and element distributions of individual particles. A novel approach has been applied for cross-sectioning of fly ash specimen with a FIB in order to explore element distribution within the interior of individual particles. Our results indicate that simulated atmospheric processing causes disintegration of aluminosilicate glass, a dominant material in fly ash particles. Aluminosilicate-phase Fe in the inner core of fly ash particles is more easily mobilized compared with oxide-phase Fe present as surface aggregates on fly ash spheres. Fe release behavior depends strongly on Fe speciation in aerosol particles. The approach for preparation of cross-sectioned specimen described here opens new opportunities for particle microanalysis, particular with respect to inorganic refractive materials like fly ash and mineral dust.

  20. Illegal logging and destruction continues in the Greenpeace demands all companies stop buying wood

    E-Print Network [OSTI]

    Illegal logging and destruction continues in the Amazon Greenpeace demands all companies stop. Pombo, one of the largest log traders in the Porto de Moz area, supplies companies such as Eidai do of Brazil's Para State. Activists painted "Crime" on 6,000 cubic metres of logs and on a barge used

  1. Annual Logging Symposium, June 19-23, 2010 QUANTITATIVE INTERPRETATION OF PULSED NEUTRON

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    measurements. The extension of time-lapse logging in waterflooded reservoirs is the estimation of waterflood for shoulder-bed effects on PNC logs acquired in sand- shale laminated reservoirs. Due to diffusion effects-hole saturation monitoring. PNC logs can be used to discriminate hydrocarbon- from water-bearing reservoir units

  2. Illegal logging, landscape structure and the variation of tree species richness across North Andean forest remnants

    E-Print Network [OSTI]

    Rodrguez, Miguel ngel

    Illegal logging, landscape structure and the variation of tree species richness across North Andean countries, namely illegal logging for household consumption (ILHC), as well as that of characteristics richness; Cloud forest 1. Introduction Forest clearing by legal or illegal logging is a major ecological

  3. Home Contact Us Help Site Map Index Search Combating Illegal Logging in Africa

    E-Print Network [OSTI]

    Home Contact Us Help Site Map Index Search Combating Illegal Logging in Africa. Deforestation is almost exclusively concentrated in tropical regions. Illegal logging on public lands worldwide to a Ministerial Declaration and Actions targeted at combating illegal logging, associated illegal trade

  4. Seneca Creek Associates, LLC Wood Resources International, LLC "Illegal" Logging and Global Wood Markets

    E-Print Network [OSTI]

    Seneca Creek Associates, LLC Wood Resources International, LLC "Illegal" Logging and Global Wood@aol.com; hekstrom@wri-ltd.com October, 2004 #12;Page ES - 1 Illegal Logging and Global Wood Markets: The Competitive, LLC Executive Summary Illegal logging has been high on the agenda, if not directly at the center

  5. Seneca Creek Associates, LLC Wood Resources International, LLC "Illegal" Logging and Global Wood Markets

    E-Print Network [OSTI]

    Seneca Creek Associates, LLC Wood Resources International, LLC SUMMARY "Illegal" Logging and Global Resources International, LLC Illegal Logging and Global Wood Markets: The Competitive Impacts on the U.S. Wood Products Industry1 Summary Study Objectives Illegal logging and illegal forest activities, in one

  6. THE EXTENT AND CAUSES OF ILLEGAL LOGGING: AN ANALYSIS OF A MAJOR CAUSE OF TROPICAL

    E-Print Network [OSTI]

    THE EXTENT AND CAUSES OF ILLEGAL LOGGING: AN ANALYSIS OF A MAJOR CAUSE OF TROPICAL DEFORESTATION IN INDONESIA by Charles E. Palmer CSERGE Working Paper http://www.cserge.ucl.ac.uk/Illegal_Logging.pdf #12;2 THE EXTENT AND CAUSES OF ILLEGAL LOGGING: AN ANALYSIS OF A MAJOR CAUSE OF TROPICAL DEFORESTATION IN INDONESIA

  7. Illegal Logging and Illegal Activities in the Forestry Sector: Overview and Possible Issues

    E-Print Network [OSTI]

    Illegal Logging and Illegal Activities in the Forestry Sector: Overview and Possible Issues Product Markets and Marketing identified the issue of illegal logging and illegal activities these countries' boundaries and provides examples in developed nations. The pernicious effects of illegal logging

  8. CONTROLLING THE INTERNATIONAL TRADE IN ILLEGALLY LOGGED TIMBER AND WOOD PRODUCTS

    E-Print Network [OSTI]

    CONTROLLING THE INTERNATIONAL TRADE IN ILLEGALLY LOGGED TIMBER AND WOOD PRODUCTS A study prepared@riia.org February 2002 http://www.illegal-logging.info/uploads/1_ControllingTrade.pdf #12;Controlling the international trade in illegally logged timber and wood products Page 2 Contents EXECUTIVE SUMMARY

  9. African Countries Take Lead On Illegal Logging UN Integrated Regional Information Networks

    E-Print Network [OSTI]

    African Countries Take Lead On Illegal Logging UN Integrated Regional Information Networks Email Abidjan Of the 39 countries which recently signed a declaration outlawing illegal logging 31 came from Africa, an indication of how seriously the problem of illegal logging is viewed around the continent

  10. A UNIX security log analyzer based on from/to access matrix

    E-Print Network [OSTI]

    El-Haj Mahmoud, Samer Ahmad

    2002-01-01T23:59:59.000Z

    or eliminating patterns of normal behavior. This research aims to study UNIX system log files and log analyzers, and to present a new method for log analysis. The method is based on a systems access matrix that provides a set of rules for services in the network...

  11. Borehole Calibration Facilities to Support Gamma Logging for Hanford Subsurface Investigation and Contaminant Monitoring - 13516

    SciTech Connect (OSTI)

    McCain, R.G.; Henwood, P.D.; Pope, A.D.; Pearson, A.W. [S M Stoller Corporation, 2439 Robertson Drive, Richland, WA 99354 (United States)] [S M Stoller Corporation, 2439 Robertson Drive, Richland, WA 99354 (United States)

    2013-07-01T23:59:59.000Z

    Repeated gamma logging in cased holes represents a cost-effective means to monitor gamma-emitting contamination in the deep vadose zone over time. Careful calibration and standardization of gamma log results are required to track changes and to compare results over time from different detectors and logging systems. This paper provides a summary description of Hanford facilities currently available for calibration of logging equipment. Ideally, all logging organizations conducting borehole gamma measurements at the Hanford Site will take advantage of these facilities to produce standardized and comparable results. (authors)

  12. Gamma Log At Coso Geothermal Area (1977) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489InformationFrenchtown, NewG22 Jump to: navigation,Log At

  13. Tsallis Distribution Decorated With Log-Periodic Oscillation

    E-Print Network [OSTI]

    Wilk, Grzegorz

    2015-01-01T23:59:59.000Z

    In many situations, in all branches of physics, one encounters power-like behavior of some variables which are best described by a Tsallis distribution characterized by a nonextensivity parameter $q$ and scale parameter $T$. However, there exist experimental results which can be described only by a Tsallis distributions which are additionally decorated by some log-periodic oscillating factor. We argue that such a factor can originate from allowing for a complex nonextensivity parameter $q$. The possible information conveyed by such an approach (like the occurrence of complex heat capacity, the notion of complex probability or complex multiplicative noise) will also be discussed.

  14. Appendix A Lithologic and Monitor Well Completion Logs

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA group currentBradleyTableSelling7111A Lithologic and Monitor Well Completion Logs

  15. Acoustic Logs At Coso Geothermal Area (1977) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlinPapersWindey Wind6:00-06:00AboutAchille,Acme, Washington:AlumLogs At

  16. Acoustic Logs At Coso Geothermal Area (2005) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty Edit withTianlinPapersWindey Wind6:00-06:00AboutAchille,Acme, Washington:AlumLogs

  17. Category:Cross-Dipole Acoustic Log | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, click here. Category:Conceptual Model Add.png Add a newpage? ForsovereignLog

  18. Energy Efficiency in Log Homes | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you sure you want toworldPowerHome | DocumentsElements ofin Log Homes Energy

  19. Property:FirstWellLog | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag Jump to: navigation, search Property NameFirstWellDepth Jump to:FirstWellLog Jump

  20. Resistivity Log At Long Valley Caldera Geothermal Area (Nordquist, 1987) |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt Ltd Jump to: navigation,Maze - Making the PathInformation Log At Fish

  1. Resistivity Log At Valles Caldera - Redondo Geothermal Area (Rowley, Et

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt Ltd Jump to: navigation,Maze - Making the PathInformation Log At

  2. Log of Changes to IMA Mineral List This log file was begun in June 2010 to keep track of changes to the IMA list of minerals

    E-Print Network [OSTI]

    Downs, Robert T.

    1 Log of Changes to IMA Mineral List This log file was begun in June 2010 to keep track of changes to the IMA list of minerals at http://rruff.info/IMA. 2 August 2013: Eltyubyuite: New mineral descriptions of wadalite: a new mineral from the Northern Caucasus, Kabardino-Balkaria, Russia. European Journal

  3. Logging InLogging In Go to Johnson School LibraryGo to Johnson School Library''s Website,s Website,

    E-Print Network [OSTI]

    Lipson, Michal

    #12;Logging InLogging In Go to Johnson School LibraryGo to Johnson School Library''s Website such as Company Name, ConHere you can enter more specifications such as Company Name, Contacttact Name etc;ExampleExample Link to company provides more detailed information of the companLink to company provides

  4. Nuclear Tools For Oilfield Logging-While-Drilling Applications

    SciTech Connect (OSTI)

    Reijonen, Jani [Schlumberger PTC, 20 Wallace Rd., Princeton Junction, NJ 08550 (United States)

    2011-06-01T23:59:59.000Z

    Schlumberger is an international oilfield service company with nearly 80,000 employees of 140 nationalities, operating globally in 80 countries. As a market leader in oilfield services, Schlumberger has developed a suite of technologies to assess the downhole environment, including, among others, electromagnetic, seismic, chemical, and nuclear measurements. In the past 10 years there has been a radical shift in the oilfield service industry from traditional wireline measurements to logging-while-drilling (LWD) analysis. For LWD measurements, the analysis is performed and the instruments are operated while the borehole is being drilled. The high temperature, high shock, and extreme vibration environment of LWD imposes stringent requirements for the devices used in these applications. This has a significant impact on the design of the components and subcomponents of a downhole tool. Another significant change in the past few years for nuclear-based oilwell logging tools is the desire to replace the sealed radioisotope sources with active, electronic ones. These active radiation sources provide great benefits compared to the isotopic sources, ranging from handling and safety to nonproliferation and well contamination issues. The challenge is to develop electronic generators that have a high degree of reliability for the entire lifetime of a downhole tool. LWD tool testing and operations are highlighted with particular emphasis on electronic radiation sources and nuclear detectors for the downhole environment.

  5. Large Deformation Unbiased Diffeomorphic Nonlinear Image Registration: Theory and Implementation

    E-Print Network [OSTI]

    Soatto, Stefano

    Large Deformation Unbiased Diffeomorphic Nonlinear Image Registration: Theory and Implementation for con- structing large deformation log-unbiased image registra- tion models that generate theoretically the statistical distributions of Jacobian maps in the logarithmic space. To demonstrate the power of the proposed

  6. 1782 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 43, NO. 8. AUGUST 1995 Ridge Waveguide Polarizer with Finite

    E-Print Network [OSTI]

    Bornemann, Jens

    1782 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 43, NO. 8. AUGUST 1995 Ridge of Electrical and Computer Engineering, University of Victoria, Victoria, BC, Canada V8W 3P6. Log Number 941

  7. Illegal Logging The US Forest Service, through its International Programs office, actively works around the globe to

    E-Print Network [OSTI]

    Illegal Logging The US Forest Service, through its International Programs office, actively works around the globe to reduce illegal logging. Illegal logging is a complex problem with myriad implications in various discrete aspects of the fight against illegal logging (for example, The US Department

  8. Published on Africa EU (http://www.africa-eu-partnership.org) Home > News > Cameroon axes illegal logging > Printer-friendly

    E-Print Network [OSTI]

    Published on Africa EU (http://www.africa-eu-partnership.org) Home > News > Cameroon axes illegal logging > Printer-friendly Cameroon axes illegal logging 14/05/2010 Cameroon axes illegal logging Illegal and trade of illegal logging. The latest country to sign up to the programme is Cameroon, which completed

  9. Coal log pipeline research at University of Missouri. 1. quarterly report for 1996, January 1--March 31, 1996

    SciTech Connect (OSTI)

    NONE

    1996-07-01T23:59:59.000Z

    This project consists of the following nine tasks: Machine design for coal log fabrication; Very rapid compaction of coal logs; Rapid compaction of coal logs; Fast-track experiments on coal log compaction; Coal log fabrication using hydrophobic binders; Drag reduction in large diameter hydraulic capsule pipeline; Automatic control of coal log pipeline system; Hydraulics of CLP (Coal Log Pipeline); and Coal heating system research. The purpose of the task, the work accomplished during this report period, and work proposed for the next quarter are described for each task.

  10. COMPARISON OF ACOUSTIC AND ELECTRICAL IMAGE LOGS FROM THE COSO GEOTHERMAL

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualProperty EditCalifornia:Power LP Biomass Facilityin Charts Jump to:List ServeGlobalFIELD, CA |

  11. Forward Modeling of the Induction Log Response of a Fractured Geologic Formation

    E-Print Network [OSTI]

    Bray, Steven Hunter

    2013-05-02T23:59:59.000Z

    3.1 Layered Earth Model The environment used for the induction log simulations is a layered Earth model. The model consists of six layers that are assigned different thicknesses and conductivities based on the desired induction log... Tx-Rx pair has a fixed separation and is moved along a vertical profile through the subsurface taking measurements at predetermined logging points. 20 The second change to the original Seatem code involves the surrounding environment. The code...

  12. Forward Modeling of the Induction Log Response of a Fractured Geologic Formation

    E-Print Network [OSTI]

    Bray, Steven Hunter

    2013-05-02T23:59:59.000Z

    3.1 Layered Earth Model The environment used for the induction log simulations is a layered Earth model. The model consists of six layers that are assigned different thicknesses and conductivities based on the desired induction log... Tx-Rx pair has a fixed separation and is moved along a vertical profile through the subsurface taking measurements at predetermined logging points. 20 The second change to the original Seatem code involves the surrounding environment. The code...

  13. Temperatures and Natural Gamma-Ray Logs Obtained in 1986 from...

    Open Energy Info (EERE)

    Changes in temperature logs run in July and September appear to result from fluid loss to the formation during and following drilling and possibly to ground shaking...

  14. Closure of logging wounds after 10 years. Forest Service research paper (Final)

    SciTech Connect (OSTI)

    Smith, H.C.; Miller, G.W.; Schuler, T.M.

    1994-09-01T23:59:59.000Z

    Closure of logging wounds on 96 sample trees was evaluated after 2, 5, and 10 years for Appalachian hardwood trees in north-central West Virginia. For yellow-poplar, northern red oak, black cherry, and white oak, many small wounds, 1 to 50 square inches in size, closed between 5 and 10 years after logging. For larger wounds, 50 to 200 square inches, it appears that many of these wounds may not close for at least 15 or perhaps 20 years after logging. Recommendations are provided to minimize logging wounds on residual trees in partially cut stands.

  15. Electrochemical Techniques

    SciTech Connect (OSTI)

    Chen, Gang; Lin, Yuehe

    2008-07-20T23:59:59.000Z

    Sensitive and selective detection techniques are of crucial importance for capillary electrophoresis (CE), microfluidic chips, and other microfluidic systems. Electrochemical detectors have attracted considerable interest for microfluidic systems with features that include high sensitivity, inherent miniaturization of both the detection and control instrumentation, low cost and power demands, and high compatibility with microfabrication technology. The commonly used electrochemical detectors can be classified into three general modes: conductimetry, potentiometry, and amperometry.

  16. Chemical Imaging Analysis of Environmental Particles Using the...

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

    Imaging Analysis of Environmental Particles Using the Focused Ion BeamScanning Electron Microscopy Technique: Chemical Imaging Analysis of Environmental Particles Using the...

  17. Wavelet smoothing of functional magnetic resonance images: A ...

    E-Print Network [OSTI]

    1910-30-72T23:59:59.000Z

    The two types of images are then compared; the regions where there are significant ... techniques at various stages in the production of the magnitude images.

  18. Minimally invasive diagnostic imaging using high resolution Optical Coherence Tomography

    E-Print Network [OSTI]

    Herz, Paul Richard, 1972-

    2004-01-01T23:59:59.000Z

    Advances in medical imaging have given researchers unprecedented capabilities to visualize, characterize and understand biological systems. Optical Coherence Tomography (OCT) is a high speed, high resolution imaging technique ...

  19. Field project to obtain pressure core, wireline log, and production test data for evaluation of CO/sub 2/ flooding potential, Conoco MCA unit well No. 358, Maljamar Field, Lea County, New Mexico

    SciTech Connect (OSTI)

    Swift, T.E.; Marlow, R.E.; Wilhelm, M.H.; Goodrich, J.H.; Kumar, R.M.

    1981-11-01T23:59:59.000Z

    This report describes part of the work done to fulfill a contract awarded to Gruy Federal, Inc., by the Department of Energy (DOE) on Feburary 12, 1979. The work includes pressure-coring and associated logging and testing programs to provide data on in-situ oil saturation, porosity and permeability distribution, and other data needed for resource characterization of fields and reservoirs in which CO/sub 2/ injection might have a high probability of success. This report details the second such project. Core porosities agreed well with computed log porosities. Core water saturation and computed log porosities agree fairly well from 3692 to 3712 feet, poorly from 3712 to 3820 feet and in a general way from 4035 to 4107 feet. Computer log analysis techniques incorporating the a, m, and n values obtained from Core Laboratories analysis did not improve the agreement of log versus core derived water saturations. However, both core and log analysis indicated the ninth zone had the highest residual hydrocarbon saturations and production data confirmed the validity of oil saturation determinations. Residual oil saturation, for the perforated and tested intervals were 259 STB/acre-ft for the interval from 4035 to 4055 feet, and 150 STB/acre-ft for the interval from 3692 to 3718 feet. Nine BOPD was produced from the interval 4035 to 4055 feet and no oil was produced from interval 3692 to 3718 feet, qualitatively confirming the relative oil saturations as calculated. The low oil production in the zone from 4022 to 4055 and the lack of production from 3692 to 3718 feet indicated the zone to be at or near residual waterflood conditions as determined by log analysis. This project demonstrates the usefulness of integrating pressure core, log, and production data to realistically evaluate a reservoir for carbon dioxide flood.

  20. Measuring the Effect of Selective Logging on Tropical Forest-Atmosphere Exchange

    E-Print Network [OSTI]

    Goulden, Michael L.

    and low impact extraction methods 1. Conventional Selective Logging: Large percent of canopy/soil can takes advantage of newly available PAR. Reduced Impact Logging and/or Light Harvest resulted in little disturbance. These are dry season data - chambers indicate decomposition is water limited. POSSIBLE

  1. PROCESS MINING OF EVENT LOGS IN AUDITING: OPPORTUNITIES AND Hasselt University

    E-Print Network [OSTI]

    Lin, Xiaodong

    1 PROCESS MINING OF EVENT LOGS IN AUDITING: OPPORTUNITIES AND CHALLENGES Mieke Jans Hasselt 15, 20101 1 Comments are welcome and may be addressed to mieke.jans@uhasselt.be. #12;2 PROCESS MINING that process mining of event logs can provide to internal and external auditors. Process mining aims to extract

  2. Synthesis of Multipole Acoustic Logging Measurements Using the Generalized Reflection/Transmission Matrices Method

    E-Print Network [OSTI]

    Torres-Verdn, Carlos

    Synthesis of Multipole Acoustic Logging Measurements Using the Generalized Reflection, the Thomson-Haskell method is the only analytical method available to simulate multipole acoustic logging is slower than the compressional velocity of the drilling fluid in the borehole. Because a multipole tool

  3. 120 Forest Products Company Gather to Combat Illegal Logging March 20, 2005

    E-Print Network [OSTI]

    120 Forest Products Company Gather to Combat Illegal Logging March 20, 2005 Geneva - More than 120 wood flooring companies in China. "We all must work together to eliminate illegal logging. Government forest products company representatives, government officials and conservationists gathered this week

  4. Annual Logging Symposium, June 3-6, 2007 QUANTITATIVE STUDIES OF RELATIVE DIP ANGLE AND BED -

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    SPWLA 48th Annual Logging Symposium, June 3-6, 2007 1 QUANTITATIVE STUDIES OF RELATIVE DIP ANGLE; Chevron Energy Technology Company Copyright 2007, held jointly by the Society of Petrophysicists and Well Log Analysts (SPWLA) and the submitting authors. This paper was prepared for presentation at the SPWLA

  5. Illegal logging on Penan traditional landin Sarawak, Malaysia (Photo by Angelo Musco)

    E-Print Network [OSTI]

    Illegal logging on Penan traditional landin Sarawak, Malaysia (Photo by Angelo Musco) New Global Alliance Formed to Undercut Illegal Logging Print this page WASHINGTON, DC, May 26, 2010 (ENS) - To reduce of the World Resources Institute, one of the founding members of the Alliance. "Some companies are not aware

  6. ORIGINALS ORIGINALARBEITEN The effect of log heating temperature on the peeling process

    E-Print Network [OSTI]

    Boyer, Edmond

    with deeper and more spaced checks than high temperatures when checks are closer and less deep, becoming even by soaking--immersing the whole logs in hot water basins--or by steaming them in vats. These traditionalORIGINALS ORIGINALARBEITEN The effect of log heating temperature on the peeling process and veneer

  7. LOG-SPECTRAL AMPLITUDE ESTIMATION WITH GENERALIZED GAMMA DISTRIBUTIONS FOR SPEECH ENHANCEMENT

    E-Print Network [OSTI]

    Alwan, Abeer

    LOG-SPECTRAL AMPLITUDE ESTIMATION WITH GENERALIZED GAMMA DISTRIBUTIONS FOR SPEECH ENHANCEMENT Bengt enhancement. Generalized Gamma distributed (GGD) priors are assumed for speech short-time spectral amplitudes by Ephraim and Malah [2]. Index Terms-- Speech Enhancement, Log-spectral Amplitude Estimator, Generalized

  8. P2P Logging and Timestamping for Reconciliation Mounir Tlili, W. Kokou Dedzoe,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    P2P Logging and Timestamping for Reconciliation Mounir Tlili, W. Kokou Dedzoe, Esther Pacitti-INRIA {FirstName.LastName}@loria.fr ABSTRACT In this paper, we address data reconciliation in peer-to-peer (P2P) collaborative applications. We propose P2P-LTR (Logging and Timestamping for Reconciliation) which provides P2P

  9. Setting Your Moodle Profile 1) Log into Moodle at http://moodle.njit.edu.

    E-Print Network [OSTI]

    Bieber, Michael

    Setting Your Moodle Profile 1) Log into Moodle at http://moodle.njit.edu. 2) After logging in users: Expanding a folder 4) After entering the course, click on the "Profile" link under the "Administration" block. See Figure 3. Figure 3: "Profile" link #12;5) Click on the "Edit profile" tab. It is the second

  10. Geological Attributes from Conventional Well Logs: Relating Rock Types to Depositional Facies in Deepwater Turbidite Reservoirs

    E-Print Network [OSTI]

    Torres-Verdn, Carlos

    SPE 166178 Geological Attributes from Conventional Well Logs: Relating Rock Types to Depositional. The objective of this paper is to quantitatively classify rock and bed types based on conventional well logs to assist facies interpretation and stratigraphic reservoir modeling. We model physical properties and well

  11. SPE 159255-PP Rock Classification from Conventional Well Logs in Hydrocarbon-Bearing

    E-Print Network [OSTI]

    Torres-Verdn, Carlos

    typing method for application in hydrocarbon-bearing shale (specifically source rock) reservoirs using conventional well logs and core data. Source rock reservoirs are known to be highly heterogeneous and often, petrophysical description of source rock reservoirs with well logs has been focused to quantifying rock

  12. Integration of Geology, Rock-Physics, Logs, and Pre-stack Seismic for Reservoir Porosity Estimation

    E-Print Network [OSTI]

    Al Muhaidib, Abdulaziz

    2011-01-01T23:59:59.000Z

    The main objective of this paper is to obtain reservoir properties, such as porosity, both at the well locations and in the inter-well regions from seismic data and well logs. The seismic and well-log datasets are from an ...

  13. Report reveals dramatic decline in illegal logging in tropical forest nations

    E-Print Network [OSTI]

    Report reveals dramatic decline in illegal logging in tropical forest nations July 15th, 2010 in Space & Earth / Environment The most thorough assessment to date of the global fight against illegal climate. According to the report, "Illegal Logging and Related Trade: Indicators of the Global Response

  14. A Flexible Architecture for Statistical Learning and Data Mining from System Log Streams

    E-Print Network [OSTI]

    Xu, Wei

    A Flexible Architecture for Statistical Learning and Data Mining from System Log Streams Wei Xu. Human operators monitoring the sys- tem use the log data and their experience to detect failures information than the operators can discern. The data might be used to predict that a particular machine

  15. Mining Logs Files for Data-Driven System Management School of Computer Science

    E-Print Network [OSTI]

    Li, Tao

    Mining Logs Files for Data-Driven System Management Wei Peng School of Computer Science Florida of the log files have been less emphasized in existing methods from data mining and machine learning in data representation pose new challenges. In this paper, we will describe our research efforts on mining

  16. Invited Applications Paper Detecting Large-Scale System Problems by Mining Console Logs

    E-Print Network [OSTI]

    Xu, Wei

    . Researchers and operators have been using all kinds of mon- itoring data, from the simplest numerical metrics Problems by Mining Console Logs part operator, and charged with fixing the problem-- are usuallyInvited Applications Paper Detecting Large-Scale System Problems by Mining Console Logs Wei Xu xuw

  17. Computing Reliability Distributions of Windowed Max-log-map (MLM) Detectors : ISI Channels

    E-Print Network [OSTI]

    Kavcic, Aleksandar

    Computing Reliability Distributions of Windowed Max-log-map (MLM) Detectors : ISI Channels Fabian-log-map (MLM) detector has well-known appli- cations to the intersymbol interefence (ISI) channel [1, · · · , is trans- mitted across the ISI channel. Let the following random This work was performed when F. Lim

  18. Annual Logging Symposium, June 19-23, 2010 IMPROVED ESTIMATION OF MINERAL

    E-Print Network [OSTI]

    Torres-Verdn, Carlos

    concentration of shale, and volumetric concentrations of mineral constituents in the presence of complex min- eral compositions, invasion, and shoulder beds. The method assumes a multi-layer reservoir model con concentrations from well logs, core data, and geological logs are nec- essary for the accurate estimation

  19. A laser speckle based position sensing technique

    E-Print Network [OSTI]

    Shilpiekandula, Vijay, 1979-

    2004-01-01T23:59:59.000Z

    This thesis presents the design and development of a novel laser-speckle-based position sensing technique. In our prototype implementation, a He-Ne laser beam is directed at the surface of an air-bearing spindle. An imaging ...

  20. Potential impacts of tighter Forest Service log export restrictions

    SciTech Connect (OSTI)

    Not Available

    1985-01-28T23:59:59.000Z

    Federal law restricts the export of unprocessed timber cut from national forests in the western half of the United States. Also, purchasers of national forest timber are restricted from substituting timber harvested from federal lands for privately owned timber that they export. GAO reviewed the magnitude of and the potential impacts from extending the substitution restriction to cover third parties who subsequently acquire Forest Service timber from the original purchasers - an export industry practice commonly referred to as third-party substitution. According to the Forest Service and timber industry associations, third-party substitution approximates 100 million board feet annually in the western United States. They said that if the practice were banned, some companies could acquire national forest timber at lower prices because of decreased demand and competition, and the lower prices would result in less government revenues. Also, a ban could disrupt traditional log markets and business practices. The Forest Service believes it could not enforce a ban on third-party substitution without additional legal authority and staff.

  1. Coal-log pipeline system development. Fifth quarterly report, August 25, 1991--November 25, 1991

    SciTech Connect (OSTI)

    Liu, H.

    1991-12-01T23:59:59.000Z

    Project tasks include: (1) Perform the necessary testing and development to demonstrate that the amount of binder in coal logs can be reduced to 8% or lower to produce logs with adequate strength to eliminate breakage during pipeline transportation, under conditions experienced in long distance pipeline systems. Prior to conducting any testing and demonstration, grantee shall perform an information search and make full determination of all previous attempts to extrude or briquette coal, upon which the testing and demonstration shall be based. (2) Perform the necessary development to demonstrate a small model of the most promising injection system for coal-logs, and tests the logs produced. (3) Conduct economic analysis of coal-log pipeline, based upon the work to date. Refine and complete the economic model. (VC)

  2. ADAPTIVE AND ROBUST TECHNIQUES (ART) FOR THERMOACOUSTIC TOMOGRAPHY

    E-Print Network [OSTI]

    Xie, Yao

    ADAPTIVE AND ROBUST TECHNIQUES (ART) FOR THERMOACOUSTIC TOMOGRAPHY By YAO XIE A DISSERTATION.1 Thermoacoustic Tomography . . . . . . . . . . . . . . . . . . . . . 1 1.2 Image Reconstruction Algorithms for TAT

  3. Geologic flow characterization using tracer techniques

    SciTech Connect (OSTI)

    Klett, R. D.; Tyner, C. E.; Hertel, Jr., E. S.

    1981-04-01T23:59:59.000Z

    A new tracer flow-test system has been developed for in situ characterization of geologic formations. This report describes two sets of test equipment: one portable and one for testing in deep formations. Equations are derived for in situ detector calibration, raw data reduction, and flow logging. Data analysis techniques are presented for computing porosity and permeability in unconfined isotropic media, and porosity, permeability and fracture characteristics in media with confined or unconfined two-dimensional flow. The effects of tracer pulse spreading due to divergence, dispersion, and porous formations are also included.

  4. Image fusion for a nighttime driving display

    E-Print Network [OSTI]

    Herrington, William Frederick

    2005-01-01T23:59:59.000Z

    An investigation into image fusion for a nighttime driving display application was performed. Most of the image fusion techniques being investigated in this application were developed for other purposes. When comparing the ...

  5. Master Thesis Proposal Eddy Current Imaging of Electrically Conducting Media

    E-Print Network [OSTI]

    Vuik, Kees

    Master Thesis Proposal Eddy Current Imaging of Electrically Conducting Media Domenico Lahaye and optimization techniques en- abling the eddy current imaging of electrically conducting media. Examples: perform a literature study into topics such as eddy current imaging, inverse problems including

  6. Model-based reconstruction of magnetic resonance spectroscopic imaging

    E-Print Network [OSTI]

    Chatnuntawech, Itthi

    2013-01-01T23:59:59.000Z

    Magnetic resonance imaging (MRI) is a medical imaging technique that is used to obtain images of soft tissue throughout the body. Since its development in the 1970s, MRI has gained tremendous importance in clinical practice ...

  7. Impact of in-woods product merchandizing on profitable logging opportunities in southern upland hardwood forests. Forest Service research paper

    SciTech Connect (OSTI)

    May, D.M.; LeDoux, C.B.; Tansey, J.B.; Widmann, R.

    1994-04-01T23:59:59.000Z

    The report estimates profitable logging opportunities existing in upland hardwood forests in 14 Southern States and demonstrates the impact of three alternative product-merchandizing options on profitable logging opportunities and profit margins.

  8. Forest cover change and illegal logging in the Ukrainian Carpathians in the transition period from 1988 to 2007

    E-Print Network [OSTI]

    Vermont, University of

    Forest cover change and illegal logging in the Ukrainian Carpathians in the transition period from 2009 Keywords: Forest harvesting Illegal logging Forest disturbance Landsat Support vector machines Ukraine Carpathians Forest inventory data Forest resource assessment Post-socialist transition Illegal

  9. 9/17/12 Lessons from the US: stopping illegal logging benefits both sides of politics 1/3theconversation.edu.au/lessons-from-the-us-stopping-illegal-logging-benefits-both-sides-of-politics-9529

    E-Print Network [OSTI]

    9/17/12 Lessons from the US: stopping illegal logging benefits both sides of politics 1/3theconversation.edu.au/lessons-from-the-us-stopping-illegal-logging-benefits-both-sides-of-politics-9529 In the US Congress, it was hard to find an opponent to stopping illegal logging. CIFOR Search search our articles

  10. Economic impact of log grade on the production of plywood and lumber

    E-Print Network [OSTI]

    Ledford, Donald Wayne

    1986-01-01T23:59:59.000Z

    and lumber. Product recovery studies were conducted for a band headsaw, a chip-n-saw, a chip-n-saw stud mill, a plywood mill peeling I/8" veneer, and a plywood mill peeling I/6" veneer. The relationship of volume and grade of product recovery... samples at the stud mill, expressed in percent of total lumber production from the log sample 66 18. Log samples peeled to 1/8" veneer with recoveries of dry veneer 69 Plywood production (1/8" veneer) per ton of log input 71 19b Plywood production...

  11. Logging into Deltek Time & Expense (T&E) | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |Is Your HomeLatestCenterLogging in Logging in to FranklinLogging

  12. Identifying Complex Fluvial Sandstone Reservoirs Using Core, Well Log, and 3D Seismic Data: Cretaceous Cedar Mountain and Dakota Formations,

    E-Print Network [OSTI]

    Seamons, Kent E.

    core, well-log, and 3D seismic data. The detailed stratigraphy and sedimentology of the interval were

  13. May 20, 2002: Illegal Logging Threatens Ecological and Economic Stability Update 11: May 21, 2002-7

    E-Print Network [OSTI]

    companies with flood-related claims. Rampant deforestation, much of it from illegal logging, has destroyedMay 20, 2002: Illegal Logging Threatens Ecological and Economic Stability Update 11: May 21, 2002-7 Copyright © 2002 Earth Policy Institute Illegal Logging Threatens Ecological and Economic Stability Janet

  14. Figure 1. Block diagram of the turbo decoder. A Memory-Reduced Log-MAP Kernel for Turbo Decoder

    E-Print Network [OSTI]

    Hung, Shih-Hao

    Figure 1. Block diagram of the turbo decoder. A Memory-Reduced Log-MAP Kernel for Turbo Decoder--Generally, the Log-MAP kernel of the turbo decoding consume large memories in hardware implement- tation of the turbo decoder is implemented to verify the proposed memory-reduced Log- MAP kernel in 3.04?3.04mm2 core

  15. Action on illegal logging: measuring UNECE/FAO and WTO workshop: Emerging trade measures in timber markets

    E-Print Network [OSTI]

    1 Action on illegal logging: measuring impacts UNECE/FAO and WTO workshop: Emerging trade measures of illegal logging Chatham House indicators project to assess: Levels of attention Government policy of illegal logging and trade Backed up by survey of experts Phase 1 study out by June 2010: Producers

  16. Reservoir parameters estimation from well log and core data: a case study from the North Sea

    E-Print Network [OSTI]

    Edinburgh, University of

    is based on matching core and log data, and the linear and non-linear regressions are then used to build. Second, linear and non- linear regression are employed to derive porosity, shale vol- umes, clay contents

  17. Sonic Logging in Deviated Boreholes in an Anisotropic Formation: Laboratory Study

    E-Print Network [OSTI]

    Zhu, Zhenya

    2006-01-01T23:59:59.000Z

    Deepwater field development requires drilling of deviated or horizontal wells. Most formations encountered can be highly anisotropic and P- and S-wave velocities vary with propagation directions. Sonic logs acquired in ...

  18. High-energy photon transport modeling for oil-well logging

    E-Print Network [OSTI]

    Johnson, Erik D., Ph. D. Massachusetts Institute of Technology

    2009-01-01T23:59:59.000Z

    Nuclear oil well logging tools utilizing radioisotope sources of photons are used ubiquitously in oilfields throughout the world. Because of safety and security concerns, there is renewed interest in shifting to ...

  19. Lithology and well log study of Campbell E-2 geothermal test...

    Open Energy Info (EERE)

    Pershing County, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Lithology and well log study of Campbell E-2 geothermal test well,...

  20. Using Interactive Visualizations of WWW Log Data to Characterize Access Patterns and Inform Site Design

    E-Print Network [OSTI]

    Golbeck, Jennifer

    Design Harry Hochheiser, Ben Shneiderman* HumanComputer Interaction Lab, Department of Computer Science, and facilities for zooming and filtering, these visualizations provide capabilities for examining data World Wide Web, Web Site Design, Log File Analysis, Information Visualization, Human

  1. Using Interactive Visualizations of WWW Log Data to Characterize Access Patterns and Inform Site Design

    E-Print Network [OSTI]

    Golbeck, Jennifer

    Design Harry Hochheiser, Ben Shneiderman* Human-Computer Interaction Lab, Department of Computer Science, and facilities for zooming and filtering, these visualizations provide capabilities for examining data World Wide Web, Web Site Design, Log File Analysis, Information Visualization, Human

  2. A Semantic Perspective on Query Log Analysis Katja Hofmann Maarten de Rijke Bouke Huurnink Edgar Meij

    E-Print Network [OSTI]

    de Rijke, Maarten

    A Semantic Perspective on Query Log Analysis Katja Hofmann Maarten de Rijke Bouke Huurnink Edgar Meij ISLA, University of Amsterdam k.hofmann@uva.nl, mdr@science.uva.nl bhuurnink@uva.nl, edgar

  3. Interpretation of Array Production Logging Measurements in Horizontal Wells for Flow Profile

    E-Print Network [OSTI]

    Liao, Lulu

    2013-12-12T23:59:59.000Z

    and possible back flow of denser phases result in misinterpretation of the inflow distribution. To assess the downhole flow conditions more accurately, logging tools have been developed to overcome the flow regime related issues. Multiple-sensor array tools...

  4. Reduced impact logging minimally alters tropical rainforest carbon and energy exchange

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    Brazil | Amazon | land use | micrometeorology D eforestation in the tropics affects the landatmosphere ex- change of trace gases and energyand energy (Wm ?2 ) ?uxes, calculated as (? = logged ? unlogged), in Tapajos National Forest, Para, Brazil.

  5. FORTRAN algorithm for correcting normal resistivity logs for borehold diameter and mud resistivity

    SciTech Connect (OSTI)

    Scott, J H

    1983-01-01T23:59:59.000Z

    The FORTRAN algorithm described was developed for applying corrections to normal resistivity logs of any electrode spacing for the effects of drilling mud of known resistivity in boreholes of variable diameter. The corrections are based on Schlumberger departure curves that are applicable to normal logs made with a standard Schlumberger electric logging probe with an electrode diameter of 8.5 cm (3.35 in). The FORTRAN algorithm has been generalized to accommodate logs made with other probes with different electrode diameters. Two simplifying assumptions used by Schlumberger in developing the departure curves also apply to the algorithm: (1) bed thickness is assumed to be infinite (at least 10 times larger than the electrode spacing), and (2) invasion of drilling mud into the formation is assumed to be negligible.

  6. Technical memorandum on analysis of the EU ETS using the community independent transaction log

    E-Print Network [OSTI]

    McGuinness, Meghan

    2007-01-01T23:59:59.000Z

    This memorandum provides an overview of three deficiencies within the current presentation of the Community Independent Transaction Log (CITL) data that have implications for researchers' ability to accurately analyze the ...

  7. Precise inversion of logged slownesses for elastic parameters in a gas shale formation

    E-Print Network [OSTI]

    Miller, Douglas E.

    Dipole sonic log data recorded in a vertical pilot well and the associated production well are analyzed over a 2001100-ft section of a North American gas shale formation. The combination of these two wells enables angular ...

  8. Image compression/decompression based on mathematical transform, reduction/expansion, and image sharpening

    DOE Patents [OSTI]

    Fu, C.Y.; Petrich, L.I.

    1997-12-30T23:59:59.000Z

    An image represented in a first image array of pixels is first decimated in two dimensions before being compressed by a predefined compression algorithm such as JPEG. Another possible predefined compression algorithm can involve a wavelet technique. The compressed, reduced image is then transmitted over the limited bandwidth transmission medium, and the transmitted image is decompressed using an algorithm which is an inverse of the predefined compression algorithm (such as reverse JPEG). The decompressed, reduced image is then interpolated back to its original array size. Edges (contours) in the image are then sharpened to enhance the perceptual quality of the reconstructed image. Specific sharpening techniques are described. 22 figs.

  9. Image compression/decompression based on mathematical transform, reduction/expansion, and image sharpening

    DOE Patents [OSTI]

    Fu, Chi-Yung (San Francisco, CA); Petrich, Loren I. (Livermore, CA)

    1997-01-01T23:59:59.000Z

    An image represented in a first image array of pixels is first decimated in two dimensions before being compressed by a predefined compression algorithm such as JPEG. Another possible predefined compression algorithm can involve a wavelet technique. The compressed, reduced image is then transmitted over the limited bandwidth transmission medium, and the transmitted image is decompressed using an algorithm which is an inverse of the predefined compression algorithm (such as reverse JPEG). The decompressed, reduced image is then interpolated back to its original array size. Edges (contours) in the image are then sharpened to enhance the perceptual quality of the reconstructed image. Specific sharpening techniques are described.

  10. (Teff,log g,[Fe/H]) Classification of Low-Resolution Stellar Spectra using Artificial Neural Networks

    E-Print Network [OSTI]

    Shawn Snider; Yuan Qu; Carlos Allende Prieto; Ted von Hippel; Timothy C. Beers; Chistopher Sneden; David L. Lambert

    1999-12-19T23:59:59.000Z

    New generation large-aperture telescopes, multi-object spectrographs, and large format detectors are making it possible to acquire very large samples of stellar spectra rapidly. In this context, traditional star-by-star spectroscopic analysis are no longer practical. New tools are required that are capable of extracting quickly and with reasonable accuracy important basic stellar parameters coded in the spectra. Recent analyses of Artificial Neural Networks (ANNs) applied to the classification of astronomical spectra have demonstrated the ability of this concept to derive estimates of temperature and luminosity. We have adapted the back-propagation ANN technique developed by von Hippel et al. (1994) to predict effective temperatures, gravities and overall metallicities from spectra with resolving power ~ 2000 and low signal-to-noise ratio. We show that ANN techniques are very effective in executing a three-parameter (Teff,log g,[Fe/H]) stellar classification. The preliminary results show that the technique is even capable of identifying outliers from the training sample.

  11. Relationship between suspicious coincidence in natural images and contour-salience in oriented filter responses

    E-Print Network [OSTI]

    Sarma, Subramonia P.

    2004-09-30T23:59:59.000Z

    The OED derived from the E histograms for six natural images are shown in log-log plot, from a to f. The same images as in Fig. 4 were used. For easier comparison, the curves have been scaled by a factor of 10. We can see that all the curves are mostly... high probabilities, i.e., where h(E) is greater than g(E). Only positive values for E are considered. . . . . . . . . . . . . 20 8 Comparison of OED h(E) of six natural images with their cor- responding normal distributions g(E) of the same variance...

  12. Study of well logs from Cove Fort-Sulphurdale KGRA, Millard and Beaver Counties, Utah

    SciTech Connect (OSTI)

    Glenn, W.E.; Ross, H.P.

    1982-07-01T23:59:59.000Z

    Union Oil Company drilled four geothermal test wells in the Cove Fort-Sulphurdale KGRA between 1975 and 1979. A fairly complete suite of well logs were recorded for the three deeper holes, and these data are presented as composite well log plots in this report. The composite well log plots have facilitated the interpretation of limestone, dolomite, sandstone, quartz-monzonite, serpentine, and volcanic lithologies and the identification of numerous fractures. This has been especially helpful because of the extensive lost circulaton zones and poor cuttings recovery. Intraformational flow was identified by a fluid migration-temperature tracer log at depth in CFSU 31-33. Well log crossplots were computed to assist in lithologic identification and the determination of physical properties for specific depth intervals in a given hole. The presence of hydrous minerals sometimes results in neutron porosity somewhat higher than the true nonfracture porosity, which is generally less than 4%. Permeability is clearly controlled by fractures. A maximum well temperature of 178.9/sup 0/C, low flow rates and low probable percent flash indicate these wells are subeconomic for electric generation at present. The well log study has substantially improved our understanding of the reservoir as presently drilled.

  13. Results of investigations at the Zunil geothermal field, Guatemala: Well logging and brine geochemistry

    SciTech Connect (OSTI)

    Adams, A.; Dennis, B.; Van Eeckhout, E.; Goff, F.; Lawton, R.; Trujillo, P.E.; Counce, D.; Archuleta, J. (Los Alamos National Lab., NM (USA)); Medina, V. (Instituto Nacional de Electrificacion, Guatemala City (Guatemala). Unidad de Desarollo Geotermico)

    1991-07-01T23:59:59.000Z

    The well logging team from Los Alamos and its counterpart from Central America were tasked to investigate the condition of four producing geothermal wells in the Zunil Geothermal Field. The information obtained would be used to help evaluate the Zunil geothermal reservoir in terms of possible additional drilling and future power plant design. The field activities focused on downhole measurements in four production wells (ZCQ-3, ZCQ-4, ZCQ-5, and ZCQ-6). The teams took measurements of the wells in both static (shut-in) and flowing conditions, using the high-temperature well logging tools developed at Los Alamos National Laboratory. Two well logging missions were conducted in the Zunil field. In October 1988 measurements were made in well ZCQ-3, ZCQ-5, and ZCQ-6. In December 1989 the second field operation logged ZCQ-4 and repeated logs in ZCQ-3. Both field operations included not only well logging but the collecting of numerous fluid samples from both thermal and nonthermal waters. 18 refs., 22 figs., 7 tabs.

  14. Test Images

    E-Print Network [OSTI]

    Test Images. I hope to have a set of test images for the course soon. Some images are available now; some will have to wait until I can find another 100-200

  15. Remote Sensing Ayman F. Habib Image Registration & Rectification

    E-Print Network [OSTI]

    Habib, Ayman

    Remote Sensing Ayman F. Habib 1 Chapter 5 Image Registration & Rectification #12;Remote Sensing: Resampling techniques. #12;Remote Sensing Ayman F. Habib 3 Image Registration #12;Remote Sensing Ayman F be integrated/fused. Object Space Left Image Right Image Image Registration: Objective #12;Remote Sensing Ayman

  16. Remote Sensing Ayman F. Habib Image Registration & Rectification

    E-Print Network [OSTI]

    Habib, Ayman

    1 Remote Sensing Ayman F. Habib 1 Chapter 5 Image Registration & Rectification Remote Sensing Ayman: Resampling techniques. #12;2 Remote Sensing Ayman F. Habib 3 Image Registration Remote Sensing Ayman F. Habib be integrated/fused. Object Space Left Image Right Image Image Registration: Objective #12;3 Remote Sensing

  17. Image Analysis

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

    Recognition Image Analysis and Recognition Snapshot1498121slicesqResedison Fibers permeating imaged material (Courtesy: Bale, Loring, Perciano and Ushizima) Imagery coming from...

  18. Image texture analysis of elastograms

    E-Print Network [OSTI]

    Hussain, Fasahat

    1999-01-01T23:59:59.000Z

    generated elastograms to obtain effective texture features. Four image analysis techniques, co-occurrence statistics, wavelet decomposition, fractal analysis and granulomeay are used to extract a number of features from each image. The inclusions...-RESOLUTION FRACTAL ANALYSIS . . . . . . E. GRANULOMETRIC FEATURES . . F. DATA NORMALIZATION . G. SEPARABILITY MEASURE 13 13 . . . . . 14 . . . . . 20 . . . . . 29 33 36 36 IV TEXTURE ANALYSIS OF SIMULATED ELASTOGRAMS. . . . . . . . . . . 38 A. SIMULATION...

  19. IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 32, NO. 7, JULY 2013 1 Deformable Medical Image Registration: A Survey

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    recent advances in the domain. Additional emphasis has been given to techniques applied to medical imagesIEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 32, NO. 7, JULY 2013 1 Deformable Medical Image Paragios, Fellow, IEEE Abstract--Deformable image registration is a fundamental task in medical image

  20. Phase-space representation of digital holographic and light field imaging with application to two-phase flows

    E-Print Network [OSTI]

    Tian, Lei, Ph. D. Massachusetts Institute of Technology

    2010-01-01T23:59:59.000Z

    In this thesis, two computational imaging techniques used for underwater research, in particular, two-phase flows measurements, are presented. The techniques under study, digital holographic imaging and light field imaging, ...

  1. Image Compression by Back Propagation

    E-Print Network [OSTI]

    Cottrell, Garrison W.

    CHAPTER 9 Image Compression by Back Propagation: An Example of Extensional Programming* GARRISON W the case with the computatiolls associated with basic cognitive pro- cesses such as vision and audition techniques. The technique we employ is known as back propagation. developed by l1umelhart, Hinton

  2. Response transforms from comparative study of commercial pulsed-neutron-capture logging systems

    SciTech Connect (OSTI)

    Salaita, G.N. (Chevron Oil Field Research Co., La Habra, CA (United States))

    1992-09-01T23:59:59.000Z

    This paper reports that three generations of Schlumberger's Thermal Decay Time (TDT{sup SM}) logging devices - viz., TDT-K, TDT-M, and TDT-P - along with an Atlas Wireline PDK-100{sup SM} system were run in a Saudi Aramco well. The wellbore (8 1/2 in. with 7-in. casing) penetrated a sequence of clean sand, shaly sand, and shale streaks as exhibited by the openhole natural gamma ray log. The initial wellbore fluid was diesel. The fluid was then changed to brines of 42,000 and 176,000 ppm NaCl, respectively. Three repeat passes at a logging speed of 900 ft/hr were obtained by each device for each borehole liquid. As a result of this extensive comparative study, a set of departure curves and mathematical transforms was developed primarily for standardizing the various Schlumberger tools to a common reference logging system and/or borehole environment. The transforms were used beneficially to determine residual oil saturation (ROS) from time-lapse logs in a Saudi Aramco reservoir.

  3. Published on Aotearoa Independent Media Centre (http://www.indymedia.org.nz) Home > Some facts on illegal logging and New Zealand

    E-Print Network [OSTI]

    on illegal logging and New Zealand Some facts on illegal logging and New Zealand By Anonymous Created 07/31/2010 - 13:27 [1]Impact of illegally logged timber on New Zealand economy For the New Zealand forestry sector estimates from the Radiata Pine Market Model suggest that the benefit of eliminating illegal logging is a US

  4. Imaging Liquids Using Microfluidic Cells

    SciTech Connect (OSTI)

    Yu, Xiao-Ying; Liu, Bingwen; Yang, Li

    2013-05-10T23:59:59.000Z

    Chemistry occurring in the liquid and liquid surface is important in many applications. Chemical imaging of liquids using vacuum based analytical techniques is challenging due to the difficulty in working with liquids with high volatility. Recent development in microfluidics enabled and increased our capabilities to study liquid in situ using surface sensitive techniques such as electron microscopy and spectroscopy. Due to its small size, low cost, and flexibility in design, liquid cells based on microfluidics have been increasingly used in studying and imaging complex phenomena involving liquids. This paper presents a review of microfluidic cells that were developed to adapt to electron microscopes and various spectrometers for in situ chemical analysis and imaging of liquids. The following topics will be covered including cell designs, fabrication techniques, unique technical features for vacuum compatible cells, and imaging with electron microscopy and spectroscopy. Challenges are summarized and recommendations for future development priority are proposed.

  5. Filtrations in Dyson-Schwinger equations: next-to^{j} -leading log expansions systematically

    E-Print Network [OSTI]

    Olaf Krueger; Dirk Kreimer

    2015-02-11T23:59:59.000Z

    Dyson-Schwinger equations determine the Green functions $G^r(\\alpha,L)$ in quantum field theory. Their solutions are triangular series in a coupling constant $\\alpha$ and an external scale parameter $L$ for a chosen amplitude $r$, with the order in $L$ bounded by the order in the coupling. Perturbation theory calculates the first few orders in $\\alpha$. On the other hand, Dyson--Schwinger equations determine next-to$^{\\{\\mathrm{j}\\}}$-leading log expansions, $G^r(\\alpha,L) = 1 + \\sum_{j=0}^\\infty \\sum_{\\mathcal{M}} p_j^{\\mathcal{M}}\\alpha^j \\mathcal{M}(u)$. $\\sum_{\\mathcal{M}}$ sums a finite number of functions $\\mathcal{M}$ in $u = \\alpha L/2$. The leading logs come from the trivial representation $\\mathcal{M}(u) = \\begin{bsmallmatrix}\\bullet\\end{bsmallmatrix}(u)$ at $j=0$ with $p_0^{\\begin{bsmallmatrix}\\bullet\\end{bsmallmatrix}} = 1$. All non-leading logs are organized by the suppression in powers $\\alpha^j$. We describe an algebraic method to derive all next-to$^{\\{\\mathrm{j}\\}}$-leading log terms from the knowledge of the first $(j+1)$ terms in perturbation theory and their filtrations. This implies the calculation of the functions $\\mathcal{M}(u)$ and periods $p_j^\\mathcal{M}$. In the first part of our paper, we investigate the structure of Dyson-Schwinger equations and develop a method to filter their solutions. Applying renormalized Feynman rules maps each filtered term to a certain power of $\\alpha$ and $L$ in the log-expansion. Based on this, the second part derives the next-to$^{\\{\\mathrm{j}\\}}$-leading log expansions. Our method is general. Here, we exemplify it using the examples of the propagator in Yukawa theory and the photon self-energy in quantum electrodynamics. The reader may apply our method to any (set of) Dyson-Schwinger equation(s) appearing in renormalizable quantum field theories.

  6. Log of a young author's thinking: George W. Cable's "Drop Shot".

    E-Print Network [OSTI]

    Sinitiere, Autry James

    1974-01-01T23:59:59.000Z

    . . t 1974 Major Subject: English LOG OF A YOUNG AUTHOR'S THINKING: GEORGE W CABLE'S "DROP SHOT" A Thesis by AUTRY JAMES SINITIERE Approved as to style and content by: Chairman of Committe Hea of Department M er ember) August 1974 & s ~~. )$, gg... APSTRACT Log of a Young Author's Thinking: George W. Cable's "Drop Shot" (August 1974) Autry James Sinitiere, B. A. , College of Santa Fe Chairman of Advisory Committee: Dr Richard H. Ballinger In February 1870 George W. Cable began writing a * p p...

  7. Non-Archimedian integrals and stringy Euler numbers of log terminal pairs

    E-Print Network [OSTI]

    Victor V. Batyrev

    1998-03-16T23:59:59.000Z

    Using non-Archimedian integration over spaces of arcs of algebraic varieties, we define stringy Euler numbers associated with arbitrary Kawamata log terminal pairs. There is a natural Kawamata log terminal pair corresponding to an algebraic variety V having a regular action of a finite group G. In this situation we show that the stringy Euler number of this pair coincides with the physicists' orbifold Euler number defined by the Dixon-Harvey-Vafa-Witten formula. As an application, we prove a conjecture of Miles Reid on the Euler numbers of crepant desingularizations of Gorenstein quotient singularities.

  8. Logging In Submi ng Assignments To begin th eLogin process, irstnavigateto th eLA

    E-Print Network [OSTI]

    Selmic, Sandra

    epassw ord th atw asassigned to you foryourTech em ailaddress. 3. Now ,clickth e"LogIn"button. Accessing

  9. Technique for ship/wake detection

    DOE Patents [OSTI]

    Roskovensky, John K. (Albuquerque, NM)

    2012-05-01T23:59:59.000Z

    An automated ship detection technique includes accessing data associated with an image of a portion of Earth. The data includes reflectance values. A first portion of pixels within the image are masked with a cloud and land mask based on spectral flatness of the reflectance values associated with the pixels. A given pixel selected from the first portion of pixels is unmasked when a threshold number of localized pixels surrounding the given pixel are not masked by the cloud and land mask. A spatial variability image is generated based on spatial derivatives of the reflectance values of the pixels which remain unmasked by the cloud and land mask. The spatial variability image is thresholded to identify one or more regions within the image as possible ship detection regions.

  10. People Images

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

    People Images People Images Several hundred of the 1700 U.S. scientists contributing to the LHC accelerator and experiments gathered in June 2008 in CERN's building 40 CE0252 Joel...

  11. Image alignment

    DOE Patents [OSTI]

    Dowell, Larry Jonathan

    2014-04-22T23:59:59.000Z

    Disclosed is a method and device for aligning at least two digital images. An embodiment may use frequency-domain transforms of small tiles created from each image to identify substantially similar, "distinguishing" features within each of the images, and then align the images together based on the location of the distinguishing features. To accomplish this, an embodiment may create equal sized tile sub-images for each image. A "key" for each tile may be created by performing a frequency-domain transform calculation on each tile. A information-distance difference between each possible pair of tiles on each image may be calculated to identify distinguishing features. From analysis of the information-distance differences of the pairs of tiles, a subset of tiles with high discrimination metrics in relation to other tiles may be located for each image. The subset of distinguishing tiles for each image may then be compared to locate tiles with substantially similar keys and/or information-distance metrics to other tiles of other images. Once similar tiles are located for each image, the images may be aligned in relation to the identified similar tiles.

  12. Fact sheet EU poll illegal timber trade Illegal logging and related timber trade

    E-Print Network [OSTI]

    March 2009 Fact sheet EU poll illegal timber trade Illegal logging and related timber trade Illegal level is needed to halt the trade in illegal timber and timber products on the European market trade. It has clarified obligations for all companies in the supply chain to prove the legality

  13. Do We Need a $15 Million "Illegal Logging Initiative?" by Alan Caruba

    E-Print Network [OSTI]

    harvest by law or represent slow-growing woodlands unsuitable for timber production. Some 490 million no timber may be extracted. You may recall that the Greens have been trying for decades to stop any logging as a "nonprofit organization dedicated to public-private partnerships to protect land and water resources." Let me

  14. Prediction of pressure depletion from wireline and mud logs, Golden Trend field, Garvin County, Oklahoma

    SciTech Connect (OSTI)

    Sorenson, R.P.; White, F.W.; Struckel, J.C.

    1987-08-01T23:59:59.000Z

    The Golden Trend, a giant oil field encompassing several overlapping Pennsylvanian stratigraphic traps on the eastern flank of the Anadarko basin, has undergone a resurgence in the 1980s with deeper drilling for pre-Pennsylvanian targets. Approximately 200 new wells in and near the Antioch Southwest, Panther Creek, and Elmore Northeast waterflood units (T2, 3N, R2, 3W) have encountered evidence of undrained reserves in both established and new pay intervals of Pennsylvanian Hart and Gibson sandstones. Although all porous Hart and Gibson sandstones in the study area were originally oil bearing, evaluation of the state of depletion is necessary for planning future recompletions to these reservoirs. In general, wireline and mud logs over intervals with known production histories exhibit characteristics suggestive of pressure depletion, even in areas of old waterfloods. The most consistent parameters correlating to low reservoir pressure are lost circulation, lack of an increase in penetration rate when drilling porous sandstone, excessive gas effect on neutron-density logs, and low methane and total gas levels on the mud logs. The resistivity invasion profile also reflects lower pressure, but is subtle. The SP curve and gas composition on the mud log do not vary substantially as a function of pressure. Visual sample shows are slightly weaker in depleted sandstones, but are less reliable, owing to dependence on reservoir quality and variations between geologists on oral descriptions of show quality.

  15. Small Log Conference Creating Capacity to Compete Coeur d'Alene, Idaho, USA, 1 April 2005

    E-Print Network [OSTI]

    Assessment UNECE Timber Committee market forecasts UNECE/FAO Timber Bulletin "Forest products annual Forest Sector Outlook Study FAO State of the World's Forests, 2005 #12;Small Log Conference Creating countries Low value Modern wood energy Small international trade Growing market Policy push

  16. Weekly Security Incident Log Period of Aug 12 -Aug 18, 2013

    E-Print Network [OSTI]

    2013-001248 THOMPSON ROAD Gas leak Security , Toronto Fire, Toronto Police, and Occupational Health and Safety responded to a report of a natural gas leak in the area of the Life Science BuildingWeekly Security Incident Log Period of Aug 12 - Aug 18, 2013 Incident No. Reported Date Building

  17. Weekly Security Incident Log Period of Feb 6 -Feb 12, 2012

    E-Print Network [OSTI]

    Gas leak Security and Toronto Fire responded to a report of a natural gas odour in B-wing. TorontoWeekly Security Incident Log Period of Feb 6 - Feb 12, 2012 Incident No. Reported Date Building\\Const. Security, York Fire Prevention and Toronto Fire responded to a fire alarm. The cause of the alarm

  18. Weekly Security Incident Log Period of Jul 9 -Jul 15, 2012

    E-Print Network [OSTI]

    and Safety responded to a report of a natural gas odour in the building. The building was checked and no natural gas was found. Toronto Fire determined that all was in order. 7/12/2012 07:31 AM HazardousWeekly Security Incident Log Period of Jul 9 - Jul 15, 2012 Incident No. Reported Date Building

  19. Weekly Security Incident Log Period of Apr 29 -May 5, 2013

    E-Print Network [OSTI]

    2013-000845 YORK LANES RETAIL Gas leak Security, Toronto Fire and Enbridge Gas responded to a report of a natural gas odour in the building. The source of the odour was located in a restaurant kitchen. EnbridgeWeekly Security Incident Log Period of Apr 29 - May 5, 2013 Incident No. Reported Date Building

  20. Many sawmills use sprinkler systems to maintain the moisture content of logs above the fiber satura-

    E-Print Network [OSTI]

    Balasundaram, Balabhaskar "Baski"

    secondary breakdown. A headrig is a machine center consisting of one or more cutting tools that influences Oklahoma Cooperative Extension Service Division of Agricultural Sciences and Natural Resources FAPC-165, includ- ing what occurs in the log yard, primary breakdown, secondary breakdown, sorting and planing

  1. IMPLICATIONS ON ECOSYSTEM SERVICES The impact of selective logging on Forest structure, Plant Diversity

    E-Print Network [OSTI]

    Paparella, Francesco

    IMPLICATIONS ON ECOSYSTEM SERVICES The impact of selective logging on Forest structure, Plant on the ecosystem, even though the available scientific literature is scanty and somewhat contradictory and other infestants. A simple mathematical model may explain these data. 1 IMPLICATIONS ON ECOSYSTEM

  2. Learn from Web Search Logs to Organize Search Results Xuanhui Wang

    E-Print Network [OSTI]

    Zhai, ChengXiang

    and Subject Descriptors: H.3.3 [Informa- tion Search and Retrieval]: Clustering, Search process General TermsLearn from Web Search Logs to Organize Search Results Xuanhui Wang Department of Computer Science Effective organization of search results is critical for improv- ing the utility of any search engine

  3. Log-Gamma Polymer Free Energy Fluctuations via a Fredholm Determinant Identity

    E-Print Network [OSTI]

    Borodin, Alexei

    We prove that under n[superscript 1/3] scaling, the limiting distribution as n ? ? of the free energy of Seppalainens log-Gamma discrete directed polymer is GUE Tracy-Widom. The main technical innovation we provide is a ...

  4. Annual Logging Symposium, June 3-6, 2007 RAPID SIMULATION OF BOREHOLE NUCLEAR MEASUREMENTS

    E-Print Network [OSTI]

    Torres-Verdn, Carlos

    MEASUREMENTS WITH APPROXIMATE SPATIAL FLUX-SCATTERING FUNCTIONS A. Mendoza, and C. Torres and benchmark fast approximate numerical procedures to simulate neutron and density porosity logs making use of Monte Carlo-derived spatial flux- scattering functions (FSFs) for specific nuclear tool configurations

  5. Speech Enhancement of Noisy Speech Using Log-Spectral Amplitude Estimator and Harmonic Tunneling

    E-Print Network [OSTI]

    Wichmann, Felix

    Speech Enhancement of Noisy Speech Using Log-Spectral Amplitude Estimator and Harmonic Tunneling we present a two stage noise reduction algo- rithm for speech enhancement. The speech noise removal and decreases the performance of speech coding and speech recog- nition systems. In speech enhancement

  6. University of Connecticut Daily Temperature Log for Unit Based Medication Refrigerators

    E-Print Network [OSTI]

    Oliver, Douglas L.

    University of Connecticut Daily Temperature Log for Unit Based Medication Refrigerators Month: If the refrigerator temperature falls out of the acceptable range of 36 to 46 degrees Fahrenheit or 2.2 to 7.7 degrees. * If the refrigerator temperature falls out of range please document your actions in the follow-up column. #12;

  7. Weekly Security Incident Log Period of May 14 -May 20, 2012

    E-Print Network [OSTI]

    Weekly Security Incident Log Period of May 14 - May 20, 2012 Incident No. Reported Date Building-000955 PARKING GARAGE - ARBORETUM LANE (PS2) Mech\\Electrical Security responded to a report that an automotive York Security responded to a report of an unknown male causing a disturbance in the food court

  8. The Helium Logging Facility Jurriaan Hage (jur@cs.uu.nl)

    E-Print Network [OSTI]

    Utrecht, Universiteit

    The Helium Logging Facility Jurriaan Hage (jur@cs.uu.nl) institute of information and computing sciences, utrecht university technical report UU-CS-2005-055 www.cs.uu.nl #12;Abstract Helium is a compiler experiences in using socket communication for the purpose. 1 #12;1 Introduction The Helium compiler implements

  9. THE HISTORICAL DENDROARCHAEOLOGY OF TWO LOG STRUCTURES AT THE MARBLE SPRINGS HISTORIC SITE, KNOX

    E-Print Network [OSTI]

    Grissino-Mayer, Henri D.

    THE HISTORICAL DENDROARCHAEOLOGY OF TWO LOG STRUCTURES AT THE MARBLE SPRINGS HISTORIC SITE, KNOX as a significant heritage site for the state of Tennessee because it was the final home of one of our nation's most. Recent archaeological and historical research had called into question the authenticity of the original

  10. Log Design for Accountability Denis Butin, Marcos Chicote and Daniel Le Metayer

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    , the logs we examine here record actions by data controllers handling personally identifiable information or identity theft can arise through criminal obtainment of PII. To address these threats, legislation on how safeguards for the private sector and the 1974 Privacy Act [7] does so for government agencies. In practice

  11. 2003 Horseshoe Beach Lease Area, Dixie County Quality Assurance/Quality Control (QA/QC) Log

    E-Print Network [OSTI]

    Florida, University of

    the month. This includes information on fouling, equipment failures and whether post-deployment checks were or a lack of standardization between the two sondes). Notes regarding reliability of data (whether/Quality Control (QA/QC) Log General Notes on Reliability of Data: 1) In general, measurements of temperature

  12. 2004 Gulf Jackson Lease Area, Levy County Quality Assurance/Quality Control (QA/QC) Log

    E-Print Network [OSTI]

    Florida, University of

    the month. This includes information on fouling, equipment failures and whether post-deployment checks were or a lack of standardization between the two sondes). Notes regarding reliability of data (whether/Quality Control (QA/QC) Log General Notes on Reliability of Data: 1) In general, measurements of temperature

  13. 2002 Dog Island Lease Area, Levy County Quality Assurance/Quality Control (AQ/QC) Log

    E-Print Network [OSTI]

    Florida, University of

    the month. This includes information on fouling, equipment failures and whether post-deployment checks were or a lack of standardization between the two sondes). Notes regarding reliability of data (whether/Quality Control (AQ/QC) Log General Notes on Reliability of Data: 1) In general, measurements of temperature

  14. 2003 Body A Lease Area, Brevard County Quality Assurance/Quality Control (QA/QC) Log

    E-Print Network [OSTI]

    Florida, University of

    the month. This includes information on fouling, equipment failures and whether post-deployment checks were or a lack of standardization between the two sondes). Notes regarding reliability of data (whether/Quality Control (QA/QC) Log General Notes on Reliability of Data: 1) In general, measurements of temperature

  15. 2003 Pine Island Lease Area, Dixie County Quality Assurance/Quality Control (QA/QC) Log

    E-Print Network [OSTI]

    Florida, University of

    the month. This includes information on fouling, equipment failures and whether post-deployment checks were or a lack of standardization between the two sondes). Notes regarding reliability of data (whether/Quality Control (QA/QC) Log General Notes on Reliability of Data: 1) In general, measurements of temperature

  16. 2002 Body A Lease Area, Brevard County Quality Assurance/Quality Control (QA/QC) Log

    E-Print Network [OSTI]

    Florida, University of

    the month. This includes information on fouling, equipment failures and whether post-deployment checks were or a lack of standardization between the two sondes). Notes regarding reliability of data (whether/Quality Control (QA/QC) Log General Notes on Reliability of Data: 1) In general, measurements of temperature

  17. 2002 Pine Island Lease Area, Dixie County Quality Assurance/Quality Control (QA/QC) Log

    E-Print Network [OSTI]

    Florida, University of

    the month. This includes information on fouling, equipment failures and whether post-deployment checks were or a lack of standardization between the two sondes). Notes regarding reliability of data (whether/Quality Control (QA/QC) Log General Notes on Reliability of Data: 1) In general, measurements of temperature

  18. 2003 Dog Island Lease Area, Levy County Quality Assurance/Quality Control (QA/QC) Log

    E-Print Network [OSTI]

    Florida, University of

    the month. This includes information on fouling, equipment failures and whether post-deployment checks were or a lack of standardization between the two sondes). Notes regarding reliability of data (whether/Quality Control (QA/QC) Log General Notes on Reliability of Data: 1) In general, measurements of temperature

  19. 2003 Gulf Jackson Lease Area, Levy County Quality Assurance/Quality Control (QA/QC) Log

    E-Print Network [OSTI]

    Florida, University of

    the month. This includes information on fouling, equipment failures and whether post-deployment checks were or a lack of standardization between the two sondes). Notes regarding reliability of data (whether/Quality Control (QA/QC) Log General Notes on Reliability of Data: 1) In general, measurements of temperature

  20. 2002 Gulf Jackson Lease Area, Levy County Quality Assurance/Quality Control (QA/QC) Log

    E-Print Network [OSTI]

    Florida, University of

    the month. This includes information on fouling, equipment failures and whether post-deployment checks were or a lack of standardization between the two sondes). Notes regarding reliability of data (whether/Quality Control (QA/QC) Log General Notes on Reliability of Data: 1) In general, measurements of temperature

  1. How to produce a turbo equalization system with complexity O(logL)?

    E-Print Network [OSTI]

    Huang, Jianwei

    How to produce a turbo equalization system with complexity O(logL)? by Professor Defeng Huang University of Hong Kong Abstract Following the great success of turbo codes in 1993, turbo equalization-symbol interference channels. However, for more than 15 years, the prohibitive complexity of turbo equalization has

  2. Transactional In-Page Logging for Multiversion Read Consistency and Recovery

    E-Print Network [OSTI]

    Moon, Bongki

    . INTRODUCTION Since solid state drives (SSDs) based on NAND type flash memory were introduced to the storage@cs.arizona.edu Abstract--Recently, a new buffer and storage management strategy called In-Page Logging (IPL) has been, the IPL scheme provides unique opportunities to design light-weight transactional support for database

  3. Android Diabetes Log Book E-mail: kongkamol@kku.ac.th

    E-Print Network [OSTI]

    Runapongsa, Kanda

    Android Diabetes Log Book 1 2 3 1 . . 40002 2, 3 . . 40002 E-mail: kongkamol@kku.ac.th Abstract Diabetes is a chronic disease, of which the patients have to continually monitor their health conditions. Keywords: android application, diabetes 4.07 5.00 , 1. 285 . . 2573 435 . . 2552 558,156 7,019 [1] 15 7% [2

  4. Petrophysical inversion of borehole array-induction logs: Part I --Numerical examples

    E-Print Network [OSTI]

    Torres-Verdn, Carlos

    to mud-filtrate invasion. We use a rigorous formulation to account for the physics of fluid displacement in porous media resulting from water-base mud filtrate invading hydrocarbon- bearing rock formations inversion experiments using noisy synthetic wireline logs. The inversion requires a priori knowledge

  5. Quantitative interpretation of pulsed neutron capture logs: Part 2 --Inversion of measurements in thinly bedded

    E-Print Network [OSTI]

    Torres-Verdn, Carlos

    across beds thinner than 45 cm. Our fast, iterative algorithm inverts R logs in seconds of CPU time and numerical solutions. However, no interpreta- tion schemes have been advanced to account for diffusion functions (FSFs) -- together with a 1D (vertical) neutron-diffusion correction. The speed and accu- racy

  6. Lawson Job Description Look Up Instructions for Managers Log In to Lawson

    E-Print Network [OSTI]

    Gleeson, Joseph G.

    Lawson Job Description Look Up Instructions for Managers Log In to Lawson o Lawson Web Address Lawson e-mail your password to you. Updated 3/15/10 Page 1 of 5 #12;Lawson Job Description Look Up Instructions for Managers Click "Job Descriptions" from Manager Central Section, sub-section Requirements

  7. Logging and the Law How the U.S. Lacey Act Helps Reduce

    E-Print Network [OSTI]

    to cut global warming pollution by reducing tropical deforestation. More information about UCS a r y 3 C h a p t e r o n e introduction 4 Illegal Logging and Associated Trade 4 Causes of Illegal t e r f o U r global Benefits of the lacey act 14 Economic Benefits 15 Societal Benefits 16

  8. An Integrated Framework on Mining Logs Files for Computing System Management

    E-Print Network [OSTI]

    Li, Tao

    . The data in the log files describe the status of each component and record system operational changes data have been less emphasized in existing analysis methods from data mining and machine learning and relatively short text messages in data reporting, asynchronism in data collection, and temporal character

  9. Mining Logs Files for Computing System Management Wei Peng, Tao Li

    E-Print Network [OSTI]

    Li, Tao

    reporting, asynchronous data collection, and temporal characteristics in data representation. FirstMining Logs Files for Computing System Management Wei Peng, Tao Li School of Computer Science experts through a knowledge acquisition process to translate domain knowl- edge into operating rules

  10. Annual Logging Symposium, June 3-6, 2007 COMBINED SIMULATION AND INVERSION OF SP AND RESISTIVITY

    E-Print Network [OSTI]

    Torres-Verdn, Carlos

    2007, held jointly by the Society of Petrophysicists and Well Log Analysts (SPWLA) and the submitting method to two data sets acquired in clastic formations. One data set corresponds to a high allows us to apply the physics of mud-filtrate invasion to estimate permeability. By progressively

  11. Petrophysical inversion of borehole array-induction logs: Part II --Field data examples

    E-Print Network [OSTI]

    Torres-Verdn, Carlos

    Petrophysical inversion of borehole array-induction logs: Part II -- Field data examples Carlos with over 30,000 wells Sorenson, 2005 . Reservoir flow units consist of rela- tively thin 210 m marine carbonates along with fine-grained clastics and shales. The penetrated thickness of the formation in the two

  12. Study of Marine Gas Hydrate on the Northern Cascadia Margin: Constraints from Logging and

    E-Print Network [OSTI]

    Study of Marine Gas Hydrate on the Northern Cascadia Margin: Constraints from Logging and Seismic and gas explaining the high hydrate concentrations at shallow depths of less than 100 meters below of the degree of Master of Science Xuan Wang 2009 #12; i ABSTRACT This thesis presents estimates of gas

  13. Image processing applications in NDE

    SciTech Connect (OSTI)

    Morris, R.A.

    1980-01-01T23:59:59.000Z

    Nondestructive examination (NDE) can be defined as a technique or collection of techniques that permits one to determine some property of a material or object without damaging the object. There are a large number of such techniques and most of them use visual imaging in one form or another. They vary from holographic interferometry where displacements under stress are measured to the visual inspection of an objects surface to detect cracks after penetrant has been applied. The use of image processing techniques on the images produced by NDE is relatively new and can be divided into three general categories: classical image enhancement; mensuration techniques; and quantitative sensitometry. An example is discussed of how image processing techniques are used to nondestructively and destructively test the product throughout its life cycle. The product that will be followed is the microballoon target used in the laser fusion program. The laser target is a small (50 to 100 ..mu..m - dia) glass sphere with typical wall thickness of 0.5 to 6 ..mu..m. The sphere may be used as is or may be given a number of coatings of any number of materials. The beads are mass produced by the millions and the first nondestructive test is to separate the obviously bad beads (broken or incomplete) from the good ones. After this has been done, the good beads must be inspected for spherocity and wall thickness uniformity. The microradiography of the glass, uncoated bead is performed on a specially designed low-energy x-ray machine. The beads are mounted in a special jig and placed on a Kodak high resolution plate in a vacuum chamber that contains the x-ray source. The x-ray image is made with an energy less that 2 keV and the resulting images are then inspected at a magnification of 500 to 1000X. Some typical results are presented.

  14. High throughput 3D optical microscopy : from image cytometry to endomicroscopy

    E-Print Network [OSTI]

    Choi, Heejin

    2014-01-01T23:59:59.000Z

    Optical microscopy is an imaging technique that allows morphological mapping of intracellular structures with submicron resolution. More importantly, optical microscopy is a technique that can readily provide images with ...

  15. Medial Techniques for Automating Finite Element Analysis

    E-Print Network [OSTI]

    Whitton, Mary C.

    Medial Techniques for Automating Finite Element Analysis by Jessica Renee Crawford Crouch Analysis. (Under the direction of Stephen M. Pizer.) Finite element analysis provides a principled method the simulation of tissue deformation. The drawback to using finite element analysis for imaging problems

  16. SPIE Medical Imaging Medical Imaging

    E-Print Network [OSTI]

    Miga, Michael I.

    CT and SPECT (GE Hawkeye) SPIE Medical Imaging 2006 28 CT/PET System Combined CT and PET (Siemens Medical Imaging 2006 10 Computed Tomography (CT) 3D Tomography from multiple projections #12;6 SPIE: Scintillation Camera SPIE Medical Imaging 2006 26 PET and SPECT PET = Positron Emission Tomography SPECT

  17. Deep Illumination Angular Domain Imaging within Highly Scattering Media Enhanced by Image Processing

    E-Print Network [OSTI]

    Chapman, Glenn H.

    tissue damage and increasing cancer risks proportionate to the cumulative dose of radiation applied [2 techniques to enhance the spatial image resolution and image contrast and to reduce noise. Keywords: Optical tomography, Angular Domain Imaging, Deep Illumination, Lasers, Tissue Optics, angular filter, Silicon

  18. Supply Assessment of Forest Logging Residues and Non-Sawlog Biomass in the Vicinity of Missoula, Montana, 2011-2013

    E-Print Network [OSTI]

    Vonessen, Nikolaus

    1 Supply Assessment of Forest Logging Residues and Non-Sawlog Biomass in the Vicinity of Missoula logging slash and non-sawlog biomass are commonly disposed of in the forest through piling and open biomass sources such as forest inventories, planned projects on other landownerships, and mill residues

  19. Outline Directed polymers Log-gamma polymer KPZ equation Fluctuation exponents for certain 1+1 dimensional

    E-Print Network [OSTI]

    Seppäläinen, Timo

    Outline Directed polymers Log-gamma polymer KPZ equation Fluctuation exponents for certain 1+1 dimensional directed polymers Timo Sepp¨al¨ainen Department of Mathematics University of Wisconsin-Madison MSRI December 2010 Fluctuation exponents for polymers 1/36 #12;Outline Directed polymers Log

  20. Detecting Large-Scale System Problems by Mining Console Logs Wei Xu xuw@cs.berkeley.edu

    E-Print Network [OSTI]

    Jordan, Michael I.

    . Researchers and operators have been using all kinds of mon- itoring data, from the simplest numerical metrics Problems by Mining Console Logs part operator, and charged with fixing the problem-- are usuallyDetecting Large-Scale System Problems by Mining Console Logs Wei Xu xuw@cs.berkeley.edu EECS

  1. Ames Lab 101: Real-Time 3D Imaging

    ScienceCinema (OSTI)

    Zhang, Song

    2012-08-29T23:59:59.000Z

    Ames Laboratory scientist Song Zhang explains his real-time 3-D imaging technology. The technique can be used to create high-resolution, real-time, precise, 3-D images for use in healthcare, security, and entertainment applications.

  2. Simultaneous PET/fMRI for imaging neuroreceptor dynamics

    E-Print Network [OSTI]

    Sander, Christin Y. (Christin Yen-Ming)

    2014-01-01T23:59:59.000Z

    Whole-brain neuroimaging is a key technique for studying brain function and connectivity. Recent advances in combining two imaging modalities - magnetic resonance imaging (MRI) and positron emission tomography (PET) - into ...

  3. Applications of Fourier Domain Mode Locked lasers for optical coherence tomography imaging

    E-Print Network [OSTI]

    Adler, Desmond Christopher, 1978-

    2009-01-01T23:59:59.000Z

    Optical coherence tomography (OCT) is a micrometer-resolution imaging technique that produces cross-sectional images of sample microstructure by measuring the amplitude and echo time delay of backscattered light. OCT imaging ...

  4. Log In

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItemResearch > The EnergyCenter (LMI-EFRC) - CenterLinks BerkeleyLiving well, Search

  5. Log Summarization

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |Is Your HomeLatestCenter (LMI-EFRC)DepartmentSecurityLodging

  6. Outage Log

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)IntegratedSpeeding access toTest andOptimize carbonOther FileDustyOur HistoryOurOutage

  7. Hislop Log

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh School football High SchoolBundles toHiring Reconstructionand

  8. Imaging the Coso geothermal area crustal structure with an array...

    Open Energy Info (EERE)

    teleseismic events. Using array-processing techniques, we mitigate the effects of near surface scattered energy. Mini-arrays of seismometers allow for imaging of small-scale...

  9. Fluid Imaging of Enhanced Geothermal Systems | Department of...

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

    3D Geophysical Imaging Technologies for Geothermal Resource Characterization Novel use of 4D Monitoring Techniques to Improve Reservoir Longevity and Productivity in Enhanced...

  10. Assessor Training Assessment Techniques

    E-Print Network [OSTI]

    NVLAP Assessor Training Assessment Techniques: Communication Skills and Conducting an Assessment listener Knowledgeable Assessor Training 2009: Assessment Techniques: Communication Skills & Conducting, truthful, sincere, discrete Diplomatic Decisive Selfreliant Assessor Training 2009: Assessment

  11. advanced x-ray techniques: Topics by E-print Network

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

    a new X-ray radiographic technique for measuring density uniformity of silica aerogels used as radiator in proximity-focusing ring-imaging Cherenkov detectors. To obtain...

  12. Solid Waste Information and Tracking System (SWITS) data change request log

    SciTech Connect (OSTI)

    McKay, R.B.

    1994-08-18T23:59:59.000Z

    The Data Change Request (DCR) log is designed to promote data integrity within the Solid Waste Information and Tracking System (SWITS). It achieves this function by providing a record of all data changes performed on the database. This document contains records of those data changes from March 91 through June 94. The DCR log is also a supplement to an electronic database -- the DCR Tracking System, which provides an electronic record of all data changes preformed on the SWITS database. The records found in this document are Data Change Request forms. These forms are required for SWITS users who wish to request data changes in the database. The procedure formalizing this policy did not go into effect until September 1, 1994; therefore, some records created before that date may be incomplete.

  13. A Uniqueness Result for Minimizers of the 1D Log-gas Renormalized Energy

    E-Print Network [OSTI]

    Thomas Lebl

    2014-08-10T23:59:59.000Z

    Sandier and Serfaty studied the one-dimensional Log-gas model, in particular they gave a crystallization result by showing that the one-dimensional lattice $\\mathbb{z}$ is a minimizer for the so-called renormalized energy which they obtained as a limit of the $N$-particle Log-gas Hamiltonian for $N \\to \\infty$. However, this minimizer is not unique among infinite point configurations (for example small perturbations of $\\mathbb{z}$ leave the renormalized energy unchanged). In this paper, we establish that uniqueness holds at the level of (stationary) point processes, the only minimizer being given by averaging $\\mathbb{z}$ over a choice of the origin in $[0,1]$. This is proved by showing a quantitative estimate on the two-point correlation function of a process in terms of its renormalized energy.

  14. A UNIX security log analyzer based on from/to access matrix

    E-Print Network [OSTI]

    El-Haj Mahmoud, Samer Ahmad

    2002-01-01T23:59:59.000Z

    -Chairs of Advisory Committee: Dr. U . Pooch Dr. A . L . N . Reddy System log files are valuable assets in detecting security violations and malicious attacks as well as in holding users responsible for their actions. However, the huge size of these logs makes... Page A B S T R A C T i i i DEDICATION iv A C K N O W L E D G M E N T S v T A B L E OF CONTENTS vi LIST OF FIGURES viii LIST OF T A B L E S ix CHAPTER I INTRODUCTION 1 1.1 The Rise of Computer Crime 1 1.2 Importance of Computer Security 2 1...

  15. Log-Gamma polymer free energy fluctuations via a Fredholm determinant identity

    E-Print Network [OSTI]

    Alexei Borodin; Ivan Corwin; Daniel Remenik

    2012-06-20T23:59:59.000Z

    We prove that under n^{1/3} scaling, the limiting distribution as n goes to infinity of the free energy of Seppalainen's log-Gamma discrete directed polymer is GUE Tracy-Widom. The main technical innovation we provide is a general identity between a class of n-fold contour integrals and a class of Fredholm determinants. Applying this identity to the integral formula proved in [Corwin-O'Connell-Seppalainen-Zygouras] for the Laplace transform of the log-Gamma polymer partition function, we arrive at a Fredholm determinant which lends itself to asymptotic analysis (and thus yields the free energy limit theorem). The Fredholm determinant was anticipated in [Borodin-Corwin] via the formalism of Macdonald processes yet its rigorous proof was so far lacking because of the nontriviality of certain decay estimates required by that approach.

  16. RF Pulse Design for Parallel Excitation in Magnetic Resonance Imaging

    E-Print Network [OSTI]

    Liu, Yinan

    2012-07-16T23:59:59.000Z

    Parallel excitation is an emerging technique to improve or accelerate multi-dimensional spatially selective excitations in magnetic resonance imaging (MRI) using multi-channel transmit arrays. The technique has potential in many applications...

  17. Field geologist's training guide: An introduction to oilfield geology, mud logging and formation evaluation

    SciTech Connect (OSTI)

    Whittaker, A.

    1985-01-01T23:59:59.000Z

    This handbook presents a basic overview of and introduction to petroleum geology, oilfield terminolgy and formation evaluation procedures. The chapters introduce many key concepts. Petroleum geology, oilfield fluids, rig types and their components, wellsite equipment and the environment in which field geologists work are presented in detail. Drilling and completing a well and formation evaluation procedures are examined from the logging geologist's perspective. The appendices contain a wide range of information such as general abbreviations, glossary, and bit classification.

  18. Analysis of historical gross gamma logging data from TY tank farm

    SciTech Connect (OSTI)

    MYERS, D.A.

    1999-10-19T23:59:59.000Z

    Gross gamma ray logs, recorded from January 1975 through mid-year 1994 as part of the Single-Shell Tank Farm Dry Well Surveillance Program, have been reanalyzed for the TY tank farm to locate the presence of mobile radionuclides in the subsurface. This report presents the TY tank farm gross gamma ray data in such a way as to assist others in their study of vadose zone mechanism.

  19. The effects of composition and bedding on log response, Yowlumne sandstone, Kern County, California

    E-Print Network [OSTI]

    Fortner, David William

    1988-01-01T23:59:59.000Z

    southwest of Bakersfield (Figures 3 and 4). Stratigraphy The Yowlumne sandstone is Upper Miocene (Mohnian) in age and is found as an isolated, lenticular body of sand within the Antelope Shale member of the Monterey Formation (Table 1) . Upper Miocene...THE EFFECTS OF COMPOSITION AND BEDDING ON LOG RESPONSE, YOWLUMNE SANDSTONE, KERN COUNTY, CALIFORNIA A Thesis by DAVID WILLIAM FORTNER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

  20. Estimators and characteristics of logging residue in California. Forest Service research paper

    SciTech Connect (OSTI)

    Howard, J.O.; Bulgrin, J.K.

    1986-03-01T23:59:59.000Z

    Ratios are presented for estimating volume and characteristics of logging residue. The ratios relate cubic-foot volume of residue to thousand board feet of timber harvested and to acres harvested. Tables show gross and net volume of residue with and without bark, by diameter and length classes, by number of pieces per acre, by softwoods and hardwoods, by percent soundness, and by degree of slope and distance to roads.

  1. Airborne LiDAR Detects Selectively Logged Tropical Forest Even in an Advanced Stage of Recovery

    E-Print Network [OSTI]

    Kent, Rafi; Lindsell, Jeremy A.; Laurin, Gaia Vaglio; Valentini, Riccardo; Coomes, David A.

    2015-01-01T23:59:59.000Z

    logged tropical forests: the attained and the attainable. Conserv. Lett. 2012, 5, 296303. 10. Silver, W. L.; Ostertag, R.; Lugo, a. E. The Potential for Carbon Sequestration Through Reforestation of Abandoned Tropical Agricultural and Pasture Lands... forests can be of high conservation value [2,79] and act as globally-important carbon sinks [912]. However, there is much uncertainty regarding the changing extent of regenerating forests, their rate and stage of recovery, and the influence...

  2. Constraint Based Mining of First Order Sequences in SeqLog (Extended Abstract)

    E-Print Network [OSTI]

    Dzeroski, Saso

    ,deraedt}@informatik.uni­freiburg.de Abstract. A logical language, SeqLog, for mining and querying sequen­ tial data and databases is presented of user­ modeling that validate of the approach. 1 Introduction Data mining has been a hot research topic in recent years, and the mining of knowledge from data of various models has been studied. One popular data

  3. A simulation model for determining the productivity and costs associated with a mobile small-log sawmill

    E-Print Network [OSTI]

    Rogers, Kenneth E

    1975-01-01T23:59:59.000Z

    accepts small logs and reduces them to a rectangular cant by m ans of a series of cutterheads. The cant is immediately reduced to one-inch or two ? inch lumber with a gangsaw. If the log is of sufficient size to produce a crosstie, the option exists... D ) ? !O. DQ MIB. SHOR1EST 2:M TO MOVE(TLVLQN) - 8. 00 MZU. LOG CHARACTERIS IC INPUT DIAMETER MEAN(DIMELN) ? 7. 00 I!ICHES DIAMETER STD. DEV. (D STDE) - 1. 00 INCHES SMALLEST POSSIBLE DIA. LTER(DILOV) - 6. 00 INCHES LARGEST POSSZBL DIMKTER( I...

  4. Fluorescence Imaging for Nuclear Arms Control Verification

    E-Print Network [OSTI]

    Feener, Jessica S

    2014-08-14T23:59:59.000Z

    treaties. Specifically, this technique uses fluorescence imaging to determine fissile material attributes in verifying, during the dismantlement process, an uncanned nuclear warhead or warhead component without revealing sensitive information. This could...

  5. Efficient implementation schemes for image enhancement filters

    E-Print Network [OSTI]

    Yusuf, Khadem Mahmud

    1994-01-01T23:59:59.000Z

    Generalized median filtering techniques that have appeared in previous literature suffer from some severe disadvantages. They are not only hardware intensive and time consuming but also tend to smear image edges. These shortcomings can be overcome...

  6. Efficient implementation schemes for image enhancement filters

    E-Print Network [OSTI]

    Yusuf, Khadem Mahmud

    1994-01-01T23:59:59.000Z

    Generalized median filtering techniques that have appeared in previous literature suffer from some severe disadvantages. They are not only hardware intensive and time consuming but also tend to smear image edges. These shortcomings can be overcome...

  7. Advantages and Limitations of the RICH Technique for Particle Identification

    SciTech Connect (OSTI)

    Ratcliff, Blair N.; /SLAC

    2011-11-07T23:59:59.000Z

    The ring imaging Cherenkov (RICH) technique for hadronic particle identification (PID) is described. The advantages and limitations of RICH PID counters are compared with those of other classic PID techniques, such as threshold Cherenkov counters, ionization loss (dE/dx) in tracking devices, and time of flight (TOF) detectors.

  8. Application of a nudging technique to thermoacoustic tomography

    E-Print Network [OSTI]

    Boyer, Edmond

    Application of a nudging technique to thermoacoustic tomography Xavier Bonnefond and Sbastien Marinesque December 3, 2011 Abstract ThermoAcoustic Tomography (TAT) is a promising, non invasive, medical inversion method. 1 Introduction ThermoAcoustic Tomography (TAT) is a hybrid imaging technique that uses

  9. Efficient and Robust Non-Rigid Least-Squares Rectification of Medical Images

    E-Print Network [OSTI]

    Orchard, Jeffery J.

    imaging, robust statistics, least-squares. 1 Introduction Advances in medical imaging techniques haveEfficient and Robust Non-Rigid Least-Squares Rectification of Medical Images A. Wong Department of the major problems facing medical imaging is the presence of geometric distortions inherent in an imaging

  10. WARM AND FUZZY: TEMPERATURE AND DENSITY ANALYSIS OF AN Fe XV EUV IMAGING SPECTROMETER LOOP

    SciTech Connect (OSTI)

    Schmelz, J. T.; Rightmire, L. A.; Kimble, J. A.; Worley, B. T.; Pathak, S. [Physics Department, University of Memphis, Memphis, TN 38152 (United States); Saar, S. H., E-mail: jschmelz@memphis.edu [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)

    2011-09-10T23:59:59.000Z

    The Hinode EUV Imaging Spectrometer (EIS) and X-Ray Telescope (XRT) were designed in part to work together. They have the same spatial resolution and cover different but overlapping coronal temperature ranges. These properties make a combined data set ideal for multithermal analysis, where EIS provides the best information on the cooler corona (log T < 6.5) and XRT provides the best information on the hotter corona (log T > 6.5). Here, we analyze a warm non-flaring loop detected in images made in a strong EIS Fe XV emission line with a wavelength of 284.16 A and peak formation temperature of log T = 6.3. We perform differential emission measure (DEM) analysis in three pixels at different heights above the footpoint and find multithermal results with the bulk of the emission measure in the range 6.0 < log T < 6.6. Analysis with the EIS lines alone gave a DEM with huge amounts of emission measure at very high temperatures (log T >7.2); analysis with XRT data alone resulted in a DEM that was missing most of the cooler emission measure required to produce many of the EIS lines. Thus, both results were misleading and unphysical. It was only by combining the EIS and XRT data that we were able to produce a reasonable result, one without ad hoc assumptions on the shape and range of the DEM itself.

  11. Reaction product imaging

    SciTech Connect (OSTI)

    Chandler, D.W. [Sandia National Laboratories, Livermore, CA (United States)

    1993-12-01T23:59:59.000Z

    Over the past few years the author has investigated the photochemistry of small molecules using the photofragment imaging technique. Bond energies, spectroscopy of radicals, dissociation dynamics and branching ratios are examples of information obtained by this technique. Along with extending the technique to the study of bimolecular reactions, efforts to make the technique as quantitative as possible have been the focus of the research effort. To this end, the author has measured the bond energy of the C-H bond in acetylene, branching ratios in the dissociation of HI, the energetics of CH{sub 3}Br, CD{sub 3}Br, C{sub 2}H{sub 5}Br and C{sub 2}H{sub 5}OBr dissociation, and the alignment of the CD{sub 3} fragment from CD{sub 3}I photolysis. In an effort to extend the technique to bimolecular reactions the author has studied the reaction of H with HI and the isotopic exchange reaction between H and D{sub 2}.

  12. Dendrochronology of the Wixson Road Log Cabin and Benjamin Patterson Inn, Corning-Painted Post Historical Society, Corning, NY

    E-Print Network [OSTI]

    Manning, Sturt

    in 1838, 1855, and again in 1863. In the NYS Census for 1865, the house was described as "log Patterson Inn with its well- documented 1796 building date and the patterns of a modern oak chronology

  13. Summary of lithologic logging of new and existing boreholes at Yucca Mountain, Nevada, August 1993 to February 1994

    SciTech Connect (OSTI)

    Geslin, J.K.; Moyer, T.C.; Buesch, D.C.

    1995-05-01T23:59:59.000Z

    Yucca Mountain, Nevada, is being investigated as a potential site for a high-level radioactive waste repository. This report summarizes the lithologic logging of new and existing boreholes at Yucca Mountain that was done from August 1993 to February 1994 by the Rock Characteristics Section, Yucca Mountain Project Branch, US Geological Survey (USGS). Units encountered during logging include Quaternary-Tertiary alluvium/colluvium, Tertiary Rainier Mesa Tuff, all units in the Tertiary Paintbrush Group, Tertiary Calico Hills Formation and Tertiary Prow Pass Tuff. We present criteria used for recognition of stratigraphic contacts, logging results as tables of contact depths for core from neutron (UZN) boreholes and graphical lithologic logs for core from non-UZN boreholes, and descriptions of several distinctive nonwelded tuffs recognized in the PTn hydrogeologic unit of the Paintbrush Group.

  14. Detection of Late Cretaceous and Cenozoic sequence boundaries on the Atlantic coastal plain using core log integration

    E-Print Network [OSTI]

    at the Navesink/Mount Laurel formation contact and can be attributed to high uranium concentration in phosphorite lithological contrasts to be expressed in the NGR and/or MS logs. INDEX TERMS: 0915 Exploration Geophysics

  15. Modeling Mud-Filtrate Invasion Effects on Resistivity Logs to Estimate Permeability of Vuggy and Fractured Carbonate Formations

    E-Print Network [OSTI]

    Torres-Verdn, Carlos

    measurements with conventional and non- conventional well logs to calculate static and dynamic petrophysical/or fractures in the displacement of hydrocarbons by mud filtrate. Introduction Permeability estimation is one

  16. Integrated nuclear techniques to detect illicit materials

    SciTech Connect (OSTI)

    DeVolpi, A.

    1997-10-01T23:59:59.000Z

    This paper discusses the problem of detecting explosives in the context of an object being transported for illicit purposes. The author emphasizes that technologies developed for this particular application have payoffs in many related problem areas. The author discusses nuclear techniques which can be applied to this detection problem. These include: x-ray imaging; neutronic interrogation; inelastic neutron scattering; fieldable neutron generators. He discusses work which has been done on the applications of these technologies, including results for detection of narcotics. He also discusses efforts to integrate these techniques into complementary systems which offer improved performance.

  17. FTN4 OPTIMIZATION TECHNIQUES.

    E-Print Network [OSTI]

    Authors, Various

    2012-01-01T23:59:59.000Z

    3 1st Edition FTN4 OPTIMIZATION TECHNIQUES November 1979O. INTRODUCTION 1. COt1PILER OPTIMIZATIONS 2. SOURCE CODEcode. Most of these optimizations decrease central processor

  18. Application of Multi-rate Flowing Fluid Electric ConductivityLogging Method to Well DH-2, Tono Site, Japan

    SciTech Connect (OSTI)

    Doughty, Christine; Takeuchi, Shinji; Amano, Kenji; Shimo, Michito; Tsang, Chin-Fu

    2004-10-04T23:59:59.000Z

    The flowing fluid electric conductivity (FEC) logging method, wellbore fluid is replaced with de-ionized water, following which FEC profiles in the wellbore are measured at a series of times while the well is pumped at a constant rate. Locations were fluid enters the wellbore show peaks in the FEC logs, which may be analyzed to infer inflow strengths and salinities of permeable features intersected by the wellbore. In multi-rate flowing FEC logging, the flowing FEC logging method is repeated using two or more pumping rates, which enables the transmissivities and inherent pressure heads of these features to be estimated as well. We perform multi-rate FEC logging on a deep borehole in fractured granitic rock, using three different pumping rates. Results identify 19 hydraulically conducting fractures and indicate that transmissivity, pressure head, and salinity vary significantly among them. By using three pumping rates rather than the minimum number of two, we obtain an internal consistency check on the analysis that provides a measure of the uncertainty of the results. Good comparisons against static FEC profiles and against independent chemical, geological, and hydrogeological data have further enhanced confidence in the results of the multi-rate flowing FEC logging method.

  19. Modeling, Pattern Analysis and Feature-Based Retrieval on Retinal Images

    E-Print Network [OSTI]

    Ying, Huajun

    2012-07-16T23:59:59.000Z

    modeling techniques on the rotational contrast transform (RCT) of image pixels, we do a quantified reasoning of the transitional Figure 1: Proposed analytical framework on retinal image. 3 properties of vessel pixels from center-line vessel... visualization technique called daisy graph representation developed in our previous work [71] to approach the physical property of image pixel. Daisy graph representation results from the technique of rotational contrast transform (RCT) [71] of 21 image...

  20. Contamination Control Techniques

    SciTech Connect (OSTI)

    EBY, J.L.

    2000-05-16T23:59:59.000Z

    Welcome to a workshop on contamination Control techniques. This work shop is designed for about two hours. Attendee participation is encouraged during the workshop. We will address different topics within contamination control techniques; present processes, products and equipment used here at Hanford and then open the floor to you, the attendees for your input on the topics.

  1. Variation in physical rock properties determined from sonic logs at a South Texas lignite mine

    E-Print Network [OSTI]

    Cato, Kerry Don

    1985-01-01T23:59:59.000Z

    or underburden units which were identified as potential problem units. S1gn1ficance of Study In the planning and design of a Gulf Coast lignite mi ne, a need exists to deter nine the variability of phys1cal rock properties within strati graphic units...VARIATION IN PHVSICAL ROCK PROPERTIES DETERMINED FROM SONIC LOGS AT A SOUTH TEXAS LIGNITE MINE A Thesis by KERRV OON CATO Submitted to the Graduate College of Texas A&M University in Partial fulfillment of the requirements for the degree...

  2. Catalog of borehole lithologic logs from the 600 Area, Hanford Site

    SciTech Connect (OSTI)

    Fecht, K R; Lillie, J T

    1982-03-01T23:59:59.000Z

    Rockwell Hanford Operations (Rockwell) geoscientists are studying the Hanford Site subsurface environment to assure safe management operations, disposal, and storage of radioactive waste. As part of this effort, geoscientists have collected geotechnical data from about 3000 boreholes drilled on the Hanford Site since the early 1900s. These boreholes have been used for subsurface geologic, hydrologic, and engineering investigation, water supply, ground-water monitoring, and natural gas production. This report is a catalog of all obtainable (about 800) lithologic logs from boreholes in a portion of the Hanford Site known as the 600 Area.

  3. Gamma Log At Alum Area (Moos & Ronne, 2010) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489InformationFrenchtown, NewG22 Jump to: navigation,Log At Alum

  4. Gamma Log At Silver Peak Area (DOE GTP) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489InformationFrenchtown, NewG22 Jump to: navigation,Log At

  5. Resistivity Log At Fish Lake Valley Area (DOE GTP) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt Ltd Jump to: navigation,Maze - Making the PathInformation Log At Fish Lake

  6. Resistivity Log At The Needles Area (DOE GTP) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt Ltd Jump to: navigation,Maze - Making the PathInformation Log At Fish689880

  7. Resistivity Log At Valles Caldera - Sulphur Springs Geothermal Area (Wilt &

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt Ltd Jump to: navigation,Maze - Making the PathInformation Log AtHaar, 1986)

  8. Image Scanning Microscopy Claus B. Muller and Jorg Enderlein*

    E-Print Network [OSTI]

    Enderlein, Jrg

    Image Scanning Microscopy Claus B. Muller and Jorg Enderlein* III. Institute of Physics, Georg microscopy technique is introduced, image scanning microscopy (ISM), which combines conventional confocal-laser scanning microscopy with fast wide-field CCD detection. The technique allows for doubling the lateral

  9. Prediction-Based Compression Ratio Boundaries for Medical Images

    E-Print Network [OSTI]

    Qi, Xiaojun

    Prediction-Based Compression Ratio Boundaries for Medical Images Xiaojun Qi Computer Science present prediction-based image compression techniques take advantage of either intra- or inter function. The prediction-based compression technique has been applied on some magnetic resonance (MR) brain

  10. LOD-Sprite Technique for Accelerated Terrain Rendering Baoquan Chen1

    E-Print Network [OSTI]

    Chen, Baoquan

    LOD-Sprite Technique for Accelerated Terrain Rendering Baoquan Chen1 SUNY at Stony Brook J. Edward present a new rendering technique, termed LOD-sprite render- ing, which uses a combination of a level-of-detail (LOD) represen- tation of the scene together with reusing image sprites (previously rendered images

  11. Directed evolution of a magnetic resonance imaging contrast agent for noninvasive imaging of dopamine

    E-Print Network [OSTI]

    Shapiro, Mikhail G.

    The development of molecular probes that allow in vivo imaging of neural signaling processes with high temporal and spatial resolution remains challenging. Here we applied directed evolution techniques to create magnetic ...

  12. Vertebrate heart development: Lessons learnt from live imaging

    E-Print Network [OSTI]

    Shyamasundar, R.K.

    Vertebrate heart development: Lessons learnt from live imaging California Institute of Technology employing different imaging techniques. Sub resolution imaging of beating zebrafish heart has however remained a challenge owing Embryonic heart is a 100 moving quasi-periodically at few Hertz frequency, over

  13. Video and Image Processing in Multimedia Systems (Video Processing)

    E-Print Network [OSTI]

    Furht, Borko

    COT 6930 Video and Image Processing in Multimedia Systems (Video Processing) Instructor: Borko. Content-based image and video indexing and retrieval. Video processing using compressed data. Course concepts and structures 4. Classification of compression techniques 5. Image and video compression

  14. Identification of Fissionable Materials Using the Tagged Neutron Technique

    SciTech Connect (OSTI)

    R.P. Keegan, J.P. Hurley, J.R. Tinsley, R. Trainham

    2009-06-30T23:59:59.000Z

    This summary describes experiments to detect and identify fissionable materials using the tagged neutron technique. The objective of this work is to enhance homeland security capability to find fissionable material that may be smuggled inside shipping boxes, containers, or vehicles. The technique distinguishes depleted uranium from lead, steel, and tungsten. Future work involves optimizing the technique to increase the count rate by many orders of magnitude and to build in the additional capability to image hidden fissionable materials. The tagged neutron approach is very different to other techniques based on neutron die-away or photo-fission. This work builds on the development of the Associated Particle Imaging (API) technique at the Special Technologies Laboratory (STL) [1]. Similar investigations have been performed by teams at the Oak Ridge National Laboratory (ORNL), the Khlopin Radium Institute in Russia, and by the EURITRACK collaboration in the European Union [2,3,4].

  15. Scalable Replay with Partial-Order Dependencies for Message-Logging Fault Tolerance

    SciTech Connect (OSTI)

    Lifflander, Jonathan; Meneses, Esteban; Menon, Harshita; Miller, Phil; Krishnamoorthy, Sriram; Kale, Laxmikant

    2014-09-22T23:59:59.000Z

    Deterministic replay of a parallel application is commonly used for discovering bugs or to recover from a hard fault with message-logging fault tolerance. For message passing programs, a major source of overhead during forward execution is recording the order in which messages are sent and received. During replay, this ordering must be used to deterministically reproduce the execution. Previous work in replay algorithms often makes minimal assumptions about the programming model and application in order to maintain generality. However, in many cases, only a partial order must be recorded due to determinism intrinsic in the code, ordering constraints imposed by the execution model, and events that are commutative (their relative execution order during replay does not need to be reproduced exactly). In this paper, we present a novel algebraic framework for reasoning about the minimum dependencies required to represent the partial order for different concurrent orderings and interleavings. By exploiting this theory, we improve on an existing scalable message-logging fault tolerance scheme. The improved scheme scales to 131,072 cores on an IBM BlueGene/P with up to 2x lower overhead than one that records a total order.

  16. Statistical quality control for volumetric modulated arc therapy (VMAT) delivery using machine log data

    E-Print Network [OSTI]

    Cheong, Kwang-Ho; Kang, Sei-Kwon; Yoon, Jai-Woong; Park, Soah; Hwang, Taejin; Kim, Haeyoung; Kim, Kyoung Ju; Han, Tae Jin; Bae, Hoonsik

    2015-01-01T23:59:59.000Z

    The aim of this study is to set up statistical quality control for monitoring of volumetric modulated arc therapy (VMAT) delivery error using machine log data. Eclipse and Clinac iX linac with the RapidArc system (Varian Medical Systems, Palo Alto, USA) is used for delivery of the VMAT plan. During the delivery of the RapidArc fields, the machine determines the delivered motor units (MUs) and gantry angle position accuracy and the standard deviations of MU (sigma_MU; dosimetric error) and gantry angle (sigma_GA; geometric error) are displayed on the console monitor after completion of the RapidArc delivery. In the present study, first, the log data was analyzed to confirm its validity and usability; then, statistical process control (SPC) was applied to monitor the sigma_MU and sigma_GA in a timely manner for all RapidArc fields: a total of 195 arc fields for 99 patients. The sigma_MU and sigma_GA were determined twice for all fields, that is, first during the patient-specific plan QA and then again during th...

  17. Monitoring DNAPL pumping using integrated geophysical techniques

    SciTech Connect (OSTI)

    Newmark, R.L.

    1997-01-01T23:59:59.000Z

    The removal of DNAPL during pumping was monitored. At Hill AFB in Utah, a free-product DNAPL plume (predominantly TCE, with some TCA, PCE, methylene chloride) is pooled in water-wet soil on a thick clay aquitard. Groundwater pumping at Operable Unit 2 began in 1994; to date, nearly 30,000 gal DNAPL have been recovered. From Sept. 1994 through Sept. 1995, changes in the basin during DNAPL pumping were monitored using fiber optic chemical sensors, neutron logs, and electrical resistance tomography (ERT). The first two sensor types verify the presence of DNAPL in vicinity of 3 boreholes which form a cross section from the perimeter of the basin to its center. Cross borehole ERT images the changes in formation electrical properties due to removal of DNAPL, extending the understanding of DNAPL removal between the boreholes. During pumping, electrical resistivities decreased; we suggest these decreases are directly caused by the reduction in DNAPL. During ground water pumping, water with relatively low resistivity replaces some of the DNAPL pockets as the highly insulating DNAPL is removed. Results suggest that, as DNAPL is pumped from a nearby well, product slowly drains along the top of an aquitard and into the pump well, where it collects.

  18. NETL CT Imaging Facility

    ScienceCinema (OSTI)

    None

    2014-05-21T23:59:59.000Z

    NETL's CT Scanner laboratory is equipped with three CT scanners and a mobile core logging unit that work together to provide characteristic geologic and geophysical information at different scales, non-destructively.

  19. NETL CT Imaging Facility

    SciTech Connect (OSTI)

    None

    2013-09-04T23:59:59.000Z

    NETL's CT Scanner laboratory is equipped with three CT scanners and a mobile core logging unit that work together to provide characteristic geologic and geophysical information at different scales, non-destructively.

  20. Coal log pipeline research at the University of Missouri. 4th Quarterly report for 1994, October 1, 1994--December 31, 1994

    SciTech Connect (OSTI)

    Liu, H.; Wilson, J.W.

    1995-06-01T23:59:59.000Z

    Several factors involved in coal log fabrication, storage and handling, such as curing time, aspect ratio and particle size distribution, were evaluated during the fourth quarter of 1994. When Orimulsion is used for coal log fabrication, a certain period of time is required to build up the strength of coal log. From the test results obtained, the longer the curing period the greater the wear resistance of the coal log. From previous studies, the coal log length to diameter ratio (aspect) was found to be an important factor affecting coal log performance during the pipeline degradation test. From the 2 inches pipeline degradation test results, coal logs with aspect ratios ranging from 1.6 to 2.2 traveled in a more stable manner, and had lower weight loss than coal logs with aspect ratios less than 1.6. The influence of particle size on the performance of a coal log was evaluated to determine the optimum particle size for coal log fabrication, based on practical and economical considerations.