National Library of Energy BETA

Sample records for transformers medical imaging

  1. Medical imaging systems

    DOE Patents [OSTI]

    Frangioni, John V

    2013-06-25

    A medical imaging system provides simultaneous rendering of visible light and diagnostic or functional images. The system may be portable, and may include adapters for connecting various light sources and cameras in open surgical environments or laparascopic or endoscopic environments. A user interface provides control over the functionality of the integrated imaging system. In one embodiment, the system provides a tool for surgical pathology.

  2. Medical imaging systems

    DOE Patents [OSTI]

    Frangioni, John V. (Wayland, MA)

    2012-07-24

    A medical imaging system provides simultaneous rendering of visible light and fluorescent images. The system may employ dyes in a small-molecule form that remains in a subject's blood stream for several minutes, allowing real-time imaging of the subject's circulatory system superimposed upon a conventional, visible light image of the subject. The system may also employ dyes or other fluorescent substances associated with antibodies, antibody fragments, or ligands that accumulate within a region of diagnostic significance. In one embodiment, the system provides an excitation light source to excite the fluorescent substance and a visible light source for general illumination within the same optical guide that is used to capture images. In another embodiment, the system is configured for use in open surgical procedures by providing an operating area that is closed to ambient light. More broadly, the systems described herein may be used in imaging applications where a visible light image may be usefully supplemented by an image formed from fluorescent emissions from a fluorescent substance that marks areas of functional interest.

  3. BAYESIAN ENSEMBLE LEARNING FOR MEDICAL IMAGE DENOISING

    E-Print Network [OSTI]

    Oh, Hyuntaek

    2012-08-31

    Medical images are often affected by random noise because of both image acquisition from the medical modalities and image transmission from modalities to workspace in the main computer. Medical image denoising removes noise from the CT or MR images...

  4. Image registration method for medical image sequences

    DOE Patents [OSTI]

    Gee, Timothy F.; Goddard, James S.

    2013-03-26

    Image registration of low contrast image sequences is provided. In one aspect, a desired region of an image is automatically segmented and only the desired region is registered. Active contours and adaptive thresholding of intensity or edge information may be used to segment the desired regions. A transform function is defined to register the segmented region, and sub-pixel information may be determined using one or more interpolation methods.

  5. Medical Image Segmentation Xiaolei Huang

    E-Print Network [OSTI]

    Huang, Xiaolei

    . The National Electrical Manufacturers Association (NEMA) holds the copyright to the DICOM standard. Medical (CAT), Magnetic Resonance Imaging (MRI), Ultrasound, and X-Ray, in standard DICOM formats are often and Communications in Medicine (DICOM) standard is created as a cooperative international standard for communication

  6. Birefringent Fourier-transform imaging spectrometer

    E-Print Network [OSTI]

    Harvey, Andy

    Birefringent Fourier-transform imaging spectrometer Andrew Robert Harvey and David William Fletcher.r.Harvey@hw.ac.uk http://www.ece.eps.hw.ac.uk/~arharvey Abstract: Fourier-transform imaging spectrometers offer important, for application in harsh environments, deployment of Fourier-transform instruments based on traditional moving

  7. Volumetric Medical Imaging Environment Bobi Gilburd1

    E-Print Network [OSTI]

    Kimmel, Ron

    Volumetric Medical Imaging Environment Bobi Gilburd1 , Michal Holtzman-Gazit2 , Alon Spira1 , Dorit structures of volumetric medical data and navigate through it easily. It combines novel approaches Introduction As volumetric medical data analysis algorithms improve, there is a growing in- terest

  8. MANSFIELD ET AL.: TRANSFORMING IMAGE COMPLETION 1 Transforming Image Completion

    E-Print Network [OSTI]

    Kohli, Pushmeet

    .K. Abstract Image completion is an important photo-editing task which involves synthetically filling a hole-of-the-art techniques. 1 Introduction Image completion is an important photo-editing task which involves synthetically the pixel traversal order critical. A number of user-driven [12] and intelligent [3] heuristics have been

  9. Visualization and analysis of large medical image collections using pipelines

    E-Print Network [OSTI]

    Sridharan, Ramesh

    2015-01-01

    Medical image analysis often requires developing elaborate algorithms that are implemented as computational pipelines. A growing number of large medical imaging studies necessitate development of robust and flexible ...

  10. Multi-channel medical imaging system

    DOE Patents [OSTI]

    Frangioni, John V

    2013-12-31

    A medical imaging system provides simultaneous rendering of visible light and fluorescent images. The system may employ dyes in a small-molecule form that remain in the subject's blood stream for several minutes, allowing real-time imaging of the subject's circulatory system superimposed upon a conventional, visible light image of the subject. The system may provide an excitation light source to excite the fluorescent substance and a visible light source for general illumination within the same optical guide used to capture images. The system may be configured for use in open surgical procedures by providing an operating area that is closed to ambient light. The systems described herein provide two or more diagnostic imaging channels for capture of multiple, concurrent diagnostic images and may be used where a visible light image may be usefully supplemented by two or more images that are independently marked for functional interest.

  11. Seismic imaging with the generalized Radon transform: A curvelet transform perspective

    E-Print Network [OSTI]

    Uhlmann, Gunther

    Seismic imaging with the generalized Radon transform: A curvelet transform perspective M V de Hoop1@purdue.edu Abstract. A key challenge in the seismic imaging of reflectors using surface reflection data Endowed Professorship. #12;Generalized Radon Transform and Curvelets 2 1. Introduction 1.1. Seismic

  12. Seismic imaging with the generalized Radon transform: A curvelet transform perspective

    E-Print Network [OSTI]

    Smith, Hart F.

    Seismic imaging with the generalized Radon transform: A curvelet transform perspective M V de Hoop1@purdue.edu Abstract. A key challenge in the seismic imaging of reflectors using surface reflection data. Introduction 1.1. Seismic Imaging with Arrays ­ Beyond Current Capabilities Much research in modern

  13. Robust Centerline Extraction from Tubular Structures in Medical Images

    E-Print Network [OSTI]

    Subramanian, Kalpathi R.

    the power and usefulness of our model by testing it on a set of synthetically generated volumes, as well tested this approach on medical imaging datasets from blood vessel geometry in the brain, and a CT in medical images, such as lung, bronchia, blood vessels, and colon. Given the noise and other imaging

  14. Medical Imaging: ECE-4BF3 Winter 2012

    E-Print Network [OSTI]

    Haykin, Simon

    and formation; post-processing for magnetic resonance imaging and spectroscopy; comparisons to other medical with medical imaging technologies- both from a physics and engineering perspective through to a practical.). However, comparative applications with other imaging modalities (e.g. PET, SPECT, ultrasound, mammography

  15. Harmonic Wavelet Transform and Image Approximation

    E-Print Network [OSTI]

    Zhang, Zhihua; Saito, Naoki

    2010-01-01

    DOI 10.1007/s10851-010-0202-x Harmonic Wavelet Transform andwe approximate f by a harmonic function u such that thebanks. We call this the Harmonic Wavelet Transform (HWT).

  16. Motion-compensation for complementary-coded medical ultrasonic imaging 

    E-Print Network [OSTI]

    Cannon, Cormac

    2010-01-01

    Ultrasound is a well-established tool for medical imaging. It is non-invasive and relatively inexpensive, but the severe attenuation caused by propagation through tissue limits its effectiveness for deep imaging. In ...

  17. Near-infrared spectroscopic tissue imaging for medical applications

    DOE Patents [OSTI]

    Demos; Stavros (Livermore, CA), Staggs; Michael C. (Tracy, CA)

    2006-03-21

    Near infrared imaging using elastic light scattering and tissue autofluorescence are explored for medical applications. The approach involves imaging using cross-polarized elastic light scattering and tissue autofluorescence in the Near Infra-Red (NIR) coupled with image processing and inter-image operations to differentiate human tissue components.

  18. Near-infrared spectroscopic tissue imaging for medical applications

    DOE Patents [OSTI]

    Demos, Stavros (Livermore, CA); Staggs, Michael C. (Tracy, CA)

    2006-12-12

    Near infrared imaging using elastic light scattering and tissue autofluorescence are explored for medical applications. The approach involves imaging using cross-polarized elastic light scattering and tissue autofluorescence in the Near Infra-Red (NIR) coupled with image processing and inter-image operations to differentiate human tissue components.

  19. DEGREE PLAN BACHLEOR OF SCIENCE IN BIOENGINEERING (MEDICAL IMAGING EMPHASIS)

    E-Print Network [OSTI]

    Huang, Haiying

    DEGREE PLAN BACHLEOR OF SCIENCE IN BIOENGINEERING (MEDICAL IMAGING EMPHASIS) The University BE 1225 (Intro to Bioengineering) 2 CHEM 1442 (Chemistry ll) 4 BE 3320 (Measurement Lab) 3 CHEM 2321: MAJOR: BIOENGINEERING (Medical Imaging) ENGLISH HISTORY POLITICAL SCIENCE MATHEMATICS Approved by

  20. Imaging Fourier transform spectroscopy with multi-aperture telescopes

    E-Print Network [OSTI]

    Fienup, James R.

    Imaging Fourier transform spectroscopy with multi-aperture telescopes Samuel T. Thurman and James R Hanover St., Palo Alto, CA 94304 Abstract: Fourier spectroscopy can be performed with multi Society of America OCIS codes: (300.6300) Spectroscopy, Fourier transforms; (110.6770) Telescopes; (120

  1. A Hit-or-Miss Transform for Multivariate Images

    E-Print Network [OSTI]

    Lefèvre, Sébastien

    A Hit-or-Miss Transform for Multivariate Images E. Aptoula, S. Lef`evre , C. Ronse LSIIT UMR-7005 these definitions to the case of multivariate images, and propose a vectorial HMT, allowing the detection of objects of multivariate data. We addi- tionally present examples of the use of the suggested operator in combination

  2. Comparison of Global Features for Categorization of Medical Images

    E-Print Network [OSTI]

    Deselaers, Thomas

    only or for all images, respectively. A maximum classification accuracy of 86% was obtained using of medical images means image classification into a predefined order scheme. For instance, the Sys- temized documentation. In modern picture archiving and communication systems (PACS), digital modalities are connected

  3. Medical Imaging: Elec Eng -4BF3 Winter 2013

    E-Print Network [OSTI]

    Haykin, Simon

    image acquisition and formation; post-processing for magnetic resonance imaging and spectroscopy is designed to allow students to become familiar with medical imaging technologies- both from a physics modalities (e.g. PET, SPECT, ultrasound, mammography, CT, EEG, MEG) will be made where appropriate. Practical

  4. Automatic classification of medical images for Content Based Image Retrieval Systems (CBIR) Epaphrodite Uwimana

    E-Print Network [OSTI]

    Ruiz, Miguel E.

    Engineering, 342 Bell Hall, Buffalo, NY Miguel E Ruiz, PhD University of North Texas, School of Library and Information Sciences P.O. Box 311068, Denton, TX 76203 This paper describes the results after using making in medical image analysis. During medical image analysis, users reference current images

  5. SAR image formation with azimuth interpolation after azimuth transform

    DOE Patents [OSTI]

    Doerry; Armin W. (Albuquerque, NM), Martin; Grant D. (Marlborough, MA), Holzrichter; Michael W. (Albuquerque, NM)

    2008-07-08

    Two-dimensional SAR data can be processed into a rectangular grid format by subjecting the SAR data to a Fourier transform operation, and thereafter to a corresponding interpolation operation. Because the interpolation operation follows the Fourier transform operation, the interpolation operation can be simplified, and the effect of interpolation errors can be diminished. This provides for the possibility of both reducing the re-grid processing time, and improving the image quality.

  6. Lensless Fourier-Transform Ghost Imaging with Classical Incoherent Light

    E-Print Network [OSTI]

    Minghui Zhang; Qing Wei; Xia Shen; Yongfeng Liu; Honglin Liu; Jing Cheng; Shensheng Han

    2006-05-22

    The Fourier-Transform ghost imaging of both amplitude-only and pure-phase objects was experimentally observed with classical incoherent light at Fresnel distance by a new lensless scheme. The experimental results are in good agreement with the standard Fourier-transform of the corresponding objects. This scheme provides a new route towards aberration-free diffraction-limited 3D images with classically incoherent thermal light, which have no resolution and depth-of-field limitations of lens-based tomographic systems.

  7. The Imaging and Medical Beam Line at the Australian Synchrotron

    SciTech Connect (OSTI)

    Hausermann, Daniel; Hall, Chris; Maksimenko, Anton; Campbell, Colin [Australian Synchrotron Company, 800 Blackburn Road, Clayton, Victoria 3168 (Australia)

    2010-07-23

    As a result of the enthusiastic support from the Australian biomedical, medical and clinical communities, the Australian Synchrotron is constructing a world-class facility for medical research, the 'Imaging and Medical Beamline'. The IMBL began phased commissioning in late 2008 and is scheduled to commence the first clinical research programs with patients in 2011. It will provide unrivalled x-ray facilities for imaging and radiotherapy for a wide range of research applications in diseases, treatments and understanding of physiological processes. The main clinical research drivers are currently high resolution and sensitivity cardiac and breast imaging, cell tracking applied to regenerative and stem cell medicine and cancer therapies. The beam line has a maximum source to sample distance of 136 m and will deliver a 60 cm by 4 cm x-ray beam1 - monochromatic and white - to a three storey satellite building fully equipped for pre-clinical and clinical research. Currently operating with a 1.4 Tesla multi-pole wiggler, it will upgrade to a 4.2 Tesla device which requires the ability to handle up to 21 kW of x-ray power at any point along the beam line. The applications envisaged for this facility include imaging thick objects encompassing materials, humans and animals. Imaging can be performed in the range 15-150 keV. Radiotherapy research typically requires energies between 30 and 120 keV, for both monochromatic and broad beam.

  8. Miniature, high-speed imaging transform spectrometers and advanced sampling algorithms

    E-Print Network [OSTI]

    Chen, Yi, Ph. D. Massachusetts Institute of Technology

    2015-01-01

    This thesis describes the development of miniature imaging Fourier transform spectrometers and irregular sampling techniques. An imaging spectrometer is a device that takes a series of images that include information from ...

  9. Compression, Restoration, Re-sampling, Compressive Sensing: Fast Transforms in Digital Imaging

    E-Print Network [OSTI]

    Yaroslavsky, Leonid

    2014-01-01

    Transform image processing methods are methods that work in domains of image transforms, such as Discrete Fourier, Discrete Cosine, Wavelet and alike. They are the basic tool in image compression, in image restoration, in image re-sampling and geometrical transformations and can be traced back to early 1970-ths. The paper presents a review of these methods with emphasis on their comparison and relationships, from the very first steps of transform image compression methods to adaptive and local adaptive transform domain filters for image restoration, to methods of precise image re-sampling and image reconstruction from sparse samples and up to "compressive sensing" approach that has gained popularity in last few years. The review has a tutorial character and purpose.

  10. Imaging of structure at and near the core mantle boundary using a generalized radon transform

    E-Print Network [OSTI]

    van der Hilst, Robert Dirk

    Imaging of structure at and near the core mantle boundary using a generalized radon transform: 1 of selected waveforms. Here we construct a generalized radon transform (for heterogeneous, anisotropic elastic radon transform: 1. Construction of image gathers, J. Geophys. Res., 111, B12304, doi:10.1029/2005JB

  11. Improved Radon Based Imaging using the Shearlet Transform Glenn R. Easleya, Flavia Colonnab, Demetrio Labatec

    E-Print Network [OSTI]

    Labate, Demetrio

    Improved Radon Based Imaging using the Shearlet Transform Glenn R. Easleya, Flavia Colonnab, such as Synthetic Aperture Radar (SAR), can be described mathematically as col- lecting data in a Radon transform domain. The process of inverting the Radon transform to form an image can be unstable when the data

  12. Medical Imaging: ECE-4BF3 Michael D. Noseworthy, Ph.D., P.Eng.

    E-Print Network [OSTI]

    Haykin, Simon

    ; post-processing for magnetic resonance imaging and spectroscopy; comparisons to other medical imaging This course is designed to allow students to become familiar with medical imaging technologies- both from imaging modalities (e.g. PET, SPECT, ultrasound, mammography, CT, EEG, MEG) will be made where appropriate

  13. Towards Systematic Exploration of Tradeoffs for Medical Image Registration on Heterogeneous Platforms

    E-Print Network [OSTI]

    Bhattacharyya, Shuvra S.

    . INTRODUCTION Advances in medical imaging technologies have enabled medical diagnoses and procedures simply of imaging modalities (e.g. computed tomography (CT), positron emission tomography (PET), magnetic resonance into one integrated view through a procedure called image registration. Image registration is the process

  14. Bioassay Phantoms Using Medical Images and Computer Aided Manufacturing

    SciTech Connect (OSTI)

    Dr. X. Geroge Xu

    2011-01-28

    A radiation bioassay program relies on a set of standard human phantoms to calibrate and assess radioactivity levels inside a human body for radiation protection and nuclear medicine imaging purposes. However, the methodologies in the development and application of anthropomorphic phantoms, both physical and computational, had mostly remained the same for the past 40 years. We herein propose a 3-year research project to develop medical image-based physical and computational phantoms specifically for radiation bioassay applications involving internally deposited radionuclides. The broad, long-term objective of this research was to set the foundation for a systematic paradigm shift away from the anatomically crude phantoms in existence today to realistic and ultimately individual-specific bioassay methodologies. This long-term objective is expected to impact all areas of radiation bioassay involving nuclear power plants, U.S. DOE laboratories, and nuclear medicine clinics.

  15. Multi-scale texture analysis of remote sensing images using gabor filter banks and wavelet transforms 

    E-Print Network [OSTI]

    Ravikumar, Rahul

    2009-05-15

    to texture information extraction and utilization. This research focuses on the use of multi-scale image texture analysis techniques using Gabor filter banks and Wavelet transformations. Gabor filter banks model texture as irradiance patterns in an image over...

  16. Rapid determination of particle velocity from space-time images using the Radon transform

    E-Print Network [OSTI]

    Cauwenberghs, Gert

    Rapid determination of particle velocity from space-time images using the Radon transform Patrick J an alternative method that makes use of the Radon transform to calculate the velocity of streaming particles. We the velocity that makes use of the Radon transform (Deans 1983; Averbuch et al. 2001), which takes a set

  17. CRYSTAL IMAGE ANALYSIS USING 2D SYNCHROSQUEEZED TRANSFORMS HAIZHAO YANG, JIANFENG LU, AND LEXING YING

    E-Print Network [OSTI]

    Ying, Lexing

    vectors for dislocations, which play an important role in crystal plasticity. We refer the readers to [19CRYSTAL IMAGE ANALYSIS USING 2D SYNCHROSQUEEZED TRANSFORMS HAIZHAO YANG, JIANFENG LU, AND LEXING transforms to extract mesoscopic and microscopic information from atomic crystal images. The methods analyze

  18. Twin image elimination in digital holography by combination of Fourier transformations

    E-Print Network [OSTI]

    Choudhury, Debesh

    2013-01-01

    We present a new technique for removing twin image in in-line digital Fourier holography using a combination of Fourier transformations. Instead of recording only a Fourier transform hologram of the object, we propose to record a combined Fourier transform hologram by simultaneously recording the hologram of the Fourier transform and the inverse Fourier transform of the object with suitable weighting coefficients. Twin image is eliminated by appropriate inverse combined Fourier transformation and proper choice of the weighting coefficients. An optical configuration is presented for recording combined Fourier transform holograms. Simulations demonstrate the feasibility of twin image elimination. The hologram reconstruction is sensitive to phase aberrations of the object, thereby opening a way for holographic phase sensing.

  19. IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 29, NO. 3, MARCH 2010 625 Electromechanical Wave Imaging of Normal

    E-Print Network [OSTI]

    Konofagou, Elisa E.

    IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 29, NO. 3, MARCH 2010 625 Electromechanical Wave Imaging* Abstract--Electromechanical wave imaging (EWI) has recently been introduced as a noninvasive, ultrasound the electrical activation of the heart, i.e., generating the electromechanical wave (EMW), can be mapped

  20. Imaging of structure at and near the core mantle boundary using a generalized radon transform

    E-Print Network [OSTI]

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

    2007-01-01

    In this thesis, concepts from inverse scattering and modem statistics are combined into a powerful tool for imaging interfaces in Earth's deep interior. Specially, a generalized Radon transform (GRT) approach is developed ...

  1. Published in Medical Image Analysis, 1(2):91108, 1996. Deformable Models

    E-Print Network [OSTI]

    Terzopoulos, Demetri

    Tracking. 1 Introduction The rapid development and proliferation of medical imaging technologies, with the assistance of computers, clinically useful information about anatomic structures imaged through CT, MR, PET these elements into a coherent and consistent model of the structure. Traditional low-level image processing

  2. Medical Imaging: ECE-4BF3 Michael D. Noseworthy, Ph.D., P.Eng.

    E-Print Network [OSTI]

    Haykin, Simon

    acquisition and formation; post-processing for magnetic resonance imaging and spectroscopy; comparisons Objectives This course is designed to allow students to become familiar with medical imaging technologies applications with other imaging modalities (e.g. PET, SPECT, ultrasound, mammography, CT, EEG, MEG

  3. Satellite image compression by post-transforms in the wavelet domain

    E-Print Network [OSTI]

    Grigoras, .Romulus

    Satellite image compression by post-transforms in the wavelet domain X. Delaunay a,Ã, M. Chabert b application a b s t r a c t This paper proposes a novel compression scheme with a tunable complexity-rate- distortion trade-off. As images increase in size and resolution, more efficient compression schemes with low

  4. Deblocking of Block-Transform Compressed Images Using Weighted Sums of Symmetrically Aligned Pixels

    E-Print Network [OSTI]

    Averbuch, Amir

    -transform codecs (BTC) are among the most common compression tools available for still images and video sequences sequences. At low bitrates, BTC compressed images, exhibit a visually annoying phenomenon, known bitrates), using BTC (e.g. JPEG), with visually acceptable results, we have to eliminate the blocking

  5. Design and characterization of electron beam focusing for X-ray generation in novel medical imaging architecture

    SciTech Connect (OSTI)

    Bogdan Neculaes, V., E-mail: neculaes@research.ge.com; Zou, Yun; Zavodszky, Peter; Inzinna, Louis; Zhang, Xi; Conway, Kenneth; Caiafa, Antonio; Frutschy, Kristopher; Waters, William; De Man, Bruno [GE Global Research, Niskayuna, New York 12309 (United States)] [GE Global Research, Niskayuna, New York 12309 (United States)

    2014-05-15

    A novel electron beam focusing scheme for medical X-ray sources is described in this paper. Most vacuum based medical X-ray sources today employ a tungsten filament operated in temperature limited regime, with electrostatic focusing tabs for limited range beam optics. This paper presents the electron beam optics designed for the first distributed X-ray source in the world for Computed Tomography (CT) applications. This distributed source includes 32 electron beamlets in a common vacuum chamber, with 32 circular dispenser cathodes operated in space charge limited regime, where the initial circular beam is transformed into an elliptical beam before being collected at the anode. The electron beam optics designed and validated here are at the heart of the first Inverse Geometry CT system, with potential benefits in terms of improved image quality and dramatic X-ray dose reduction for the patient.

  6. Reversible Image Authentication with Tamper Localization Based on Integer Wavelet Transform

    E-Print Network [OSTI]

    Devi, P Meenakshi; Duraiswamy, K

    2009-01-01

    In this paper, a new reversible image authentication technique with tamper localization based on watermarking in integer wavelet transform is proposed. If the image authenticity is verified, then the distortion due to embedding the watermark can be completely removed from the watermarked image. If the image is tampered, then the tampering positions can also be localized. Two layers of watermarking are used. The first layer embedded in spatial domain verifies authenticity and the second layer embedded in transform domain provides reversibility. This technique utilizes selective LSB embedding and histogram characteristics of the difference images of the wavelet coefficients and modifies pixel values slightly to embed the watermark. Experimental results demonstrate that the proposed scheme can detect any modifications of the watermarked image.

  7. Anniversary Paper: Image processing and manipulation through the pages of Medical Physics

    SciTech Connect (OSTI)

    Armato, Samuel G. III; Ginneken, Bram van [Department of Radiology, University of Chicago, 5841 South Maryland Avenue, Chicago, Illinois 60637 (United States); Image Sciences Institute, University Medical Center Utrecht, Heidelberglaan 100, Room Q0S.459, 3584 CX Utrecht (Netherlands)

    2008-10-15

    The language of radiology has gradually evolved from ''the film'' (the foundation of radiology since Wilhelm Roentgen's 1895 discovery of x-rays) to ''the image,'' an electronic manifestation of a radiologic examination that exists within the bits and bytes of a computer. Rather than simply storing and displaying radiologic images in a static manner, the computational power of the computer may be used to enhance a radiologist's ability to visually extract information from the image through image processing and image manipulation algorithms. Image processing tools provide a broad spectrum of opportunities for image enhancement. Gray-level manipulations such as histogram equalization, spatial alterations such as geometric distortion correction, preprocessing operations such as edge enhancement, and enhanced radiography techniques such as temporal subtraction provide powerful methods to improve the diagnostic quality of an image or to enhance structures of interest within an image. Furthermore, these image processing algorithms provide the building blocks of more advanced computer vision methods. The prominent role of medical physicists and the AAPM in the advancement of medical image processing methods, and in the establishment of the ''image'' as the fundamental entity in radiology and radiation oncology, has been captured in 35 volumes of Medical Physics.

  8. Effects of finite sampling and additive noise on image reconstruction from Radon transform

    SciTech Connect (OSTI)

    Tsujimoto, E.M. (California Univ., Davis, CA (USA))

    1988-12-01

    The Radon transform arises naturally in the problem of reconstructing an image or cross section from line integral measurements through a specified object. Each line integral or ray is a sample of the Radon transform of the object and the set of all samples at a particular angle is called a projection or view. Consequently, the set of all possible samples at all possible projections in a particular plane constitutes the two-dimensional Radon transform. Of course, it is impossible to acquire an infinite number of data points for the purpose of image reconstruction. However, with a sufficient set of Radon transform samples, an images can be determined through various Radon transform inversion techniques. From this statement, however, arises the question of just what constitutes a sufficient set of Radon transform samples. Acquiring an insufficient number of samples results in various artifacts in the reconstructed image. On the other hand, taking too many samples utilizes the data inefficiently. Thus, the problem of interest is to determine the optimum number of projections and the optimum number of samples per projection required to adequately represent the Radon transform such that the image can be accurately reconstructed. The problem of image reconstruction is further complicated if noise is introduced in the projection domain. Noise may be caused by round-off error in the sampled projection data or by various other factors inherent in data acquisition processes. However, several filtering techniques can be implemented to suppress the effects of noise. Therefore, a second problem of interest is to study the effectiveness of different filtering techniques in noise suppression.

  9. Acoustic investigation of microbubble response to medical imaging ultrasound pulses 

    E-Print Network [OSTI]

    Thomas, David H.

    2010-01-01

    Ultrasound contrast agents have the ability to provide locally increased echogenicity, improving the sensitivity and specificity of images. Due to the unique interaction of microbubbles with the imaging ultrasound field, ...

  10. A Transformer Coupling Method for Imaging Defects in Concentrically Arranged Steel Tubes

    SciTech Connect (OSTI)

    Miller, G.; Hussin, H.; Fernandes, B.; Zaid, M.; Gaydecki, P.; El-Madaani, F. [School of Electrical and Electronic Engineering, University of Manchester, PO Box 88, Manchester M60 1QD (United Kingdom)

    2006-03-06

    This paper describes the development of a system that uses a transformer coupling method for imaging defects in the outer tube of a concentric steel tube pair. Transformer coupling is employed where a receiver is mounted opposite to the transmitter. Magnetic field coupling is used, in which the field propagates through the inner steel tube towards the outer steel tube. Defects in the outer section distort the field and the change is detected by the receiver.

  11. Associative Classifiers for Medical Images Maria-Luiza Antonie, Osmar R. Zaiane, and Alexandru Coman

    E-Print Network [OSTI]

    Zaiane, Osmar R.

    , acoman}@cs.ualberta.ca Abstract. This paper presents two classification systems for medical images based in a classification model. The experimental results show that the method performs well, reaching over 80% in accuracy mining architecture for image classification. 1 Introduction Association rule mining is one of the most

  12. VESSEL SEGMENTATION IN MEDICAL IMAGING USING A TIGHT-FRAME BASED ALGORITHM

    E-Print Network [OSTI]

    Chan, Raymond

    VESSEL SEGMENTATION IN MEDICAL IMAGING USING A TIGHT-FRAME BASED ALGORITHM XIAOHAO CAI, RAYMOND vessels in magnetic resonance angiography images. Our method iteratively refines a region that encloses the potential boundary of the vessels. At each iteration, we apply the tight-frame algorithm to denoise

  13. FAST ROBUST PERSPECTIVE TRANSFORM ESTIMATION FOR AUTOMATIC IMAGE REGISTRATION IN DISASTER RESPONSE APPLICATIONS

    E-Print Network [OSTI]

    Bowyer, Kevin W.

    2 be the two images that differ only by a displacement (tx, ty) i.e., f2(x, y) = f1(x - tx, y - ty) (1) Their corresponding Fourier transforms F1 and F2 will be related by F2(, ) = e-j2(tx+ty) F1(, ) (2) The cross-power spectrum of two images f1 and f2 is de- fined as F1(, )F 2 (, ) |F1(, )F2

  14. Application of Data Mining Techniques for Medical Image Classification

    E-Print Network [OSTI]

    Zaiane, Osmar R.

    are necessary to assist the medical staff to achieve high efficiency and effectiveness. 1In the United States of cancer deaths in women today and it is the most common type of cancer in women. This paper presents some in cancer treatment and allows reaching a high survival rate. Mammography is considered the most reliable

  15. To appear in the Journal of Computerized Medical Imaging and Graphics, 1994. A Dynamic Finite Element Surface Model

    E-Print Network [OSTI]

    Terzopoulos, Demetri

    , PET and other noninvasive medical imaging technologies can provide exceptional views of internal elastically to t the image data. The tting process is mediated by internal forces stemming from the elastic tting process. Keywords: 3D/4D Medical Image Analysis, Deformable Models, Finite Elements, Dynamics

  16. Polymer-coated iron oxide nanoparticles for medical imaging

    E-Print Network [OSTI]

    Chen, Suelin, Ph.D. Massachusetts Institute of Technology

    2010-01-01

    One of the most versatile and safe materials used in medicine are polymer-coated iron oxide nanoparticles. This dissertation describes several formulations for in vivo imaging applications. The paramagnetic polymer-coated ...

  17. IEEE TRANSACTIONS ON IMAGE PROCESSING 1 3D Discrete Shearlet Transform and Video

    E-Print Network [OSTI]

    Labate, Demetrio

    IEEE TRANSACTIONS ON IMAGE PROCESSING 1 3D Discrete Shearlet Transform and Video Processing Pooran , as M . Copyright (c) 2010 IEEE. Personal use of this material is permitted. However, permission to use this material for any other purposes must be obtained from the IEEE by sending a request to pubs-permissions@ieee

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

    DOE Patents [OSTI]

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

    1997-12-30

    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.

  19. IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 24, NO. 2, FEBRUARY 2005 199 Half-Time Image Reconstruction in

    E-Print Network [OSTI]

    Wang, Lihong

    Reconstruction in Thermoacoustic Tomography Mark A. Anastasio*, Jin Zhang, Xiaochuan Pan, Yu Zou, Geng Ku, and Lihong V. Wang Abstract--Thermoacoustic tomography (TAT) is an emerging imaging technique with great, reflectivity tomography, spherical Radon transform, thermoacoustic tomography. I. INTRODUCTION THERMOACOUSTIC

  20. 2 Imaging of structure at and near the core-mantle 3 boundary using a generalized radon transform

    E-Print Network [OSTI]

    van der Hilst, Robert Dirk

    2 Imaging of structure at and near the core-mantle 3 boundary using a generalized radon transform. The first part describes the generalized radon transform 11 (GRT) of broadband ScS data (comprising main Hilst (2007), Imaging of structure at and near the core- 34 mantle boundary using a generalized radon

  1. Medical imaging using ionizing radiation: Optimization of dose and image quality in fluoroscopy

    SciTech Connect (OSTI)

    Jones, A. Kyle; Balter, Stephen; Rauch, Phillip; Wagner, Louis K.

    2014-01-15

    The 2012 Summer School of the American Association of Physicists in Medicine (AAPM) focused on optimization of the use of ionizing radiation in medical imaging. Day 2 of the Summer School was devoted to fluoroscopy and interventional radiology and featured seven lectures. These lectures have been distilled into a single review paper covering equipment specification and siting, equipment acceptance testing and quality control, fluoroscope configuration, radiation effects, dose estimation and measurement, and principles of flat panel computed tomography. This review focuses on modern fluoroscopic equipment and is comprised in large part of information not found in textbooks on the subject. While this review does discuss technical aspects of modern fluoroscopic equipment, it focuses mainly on the clinical use and support of such equipment, from initial installation through estimation of patient dose and management of radiation effects. This review will be of interest to those learning about fluoroscopy, to those wishing to update their knowledge of modern fluoroscopic equipment, to those wishing to deepen their knowledge of particular topics, such as flat panel computed tomography, and to those who support fluoroscopic equipment in the clinic.

  2. Final Report for The University of Texas at Arlington Optical Medical Imaging Section of Advanced Imaging Research Center

    SciTech Connect (OSTI)

    Khosrow Behbehani

    2013-02-26

    The goal of this project was to create state-of-the-art optical medical imaging laboratories for the Biomedical Engineering faculty and student researchers of the University of Texas at Arlington (UTA) on the campus of the University of Texas Southwestern Medical Center (UTSW). This has been successfully achieved. These laboratories provide an unprecedented opportunity for the bioengineers (from UTA) to bring about new breakthroughs in medical imaging using optics. Specifically, three major laboratories have been successfully established and state-of-the-art scientific instruments have been placed in the labs. As a result of this grant, numerous journal and conference publications have been generated, patents for new inventions have been filed and received, and many additional grants for the continuation of the research has been received.

  3. MILXView: A medical imaging, analysis and visualization platform.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . The aim of the Alzheimer's disease project is to develop algorithms and software to process MRI and PET in acquisition technology. However, image analysis and interpretation is still primarily performed manually with functional and molecular information from PET to allow early detection of changes related to disease

  4. Advanced synchronous luminescence imaging for chemical and medical diagnostics

    DOE Patents [OSTI]

    Vo-Dinh, Tuan

    2006-09-05

    A diagnostic method and associated system includes the steps of exposing at least one sample location with excitation radiation through a single optical waveguide or a single optical waveguide bundle, wherein the sample emits emission radiation in response to the excitation radiation. The same single optical waveguide or the single optical waveguide bundle receives at least a portion of the emission radiation from the sample, thus providing co-registration of the excitation radiation and the emission radiation. The wavelength of the excitation radiation and emission radiation is synchronously scanned to produce a spectrum upon which an image can be formed. An increased emission signal is generated by the enhanced overlap of the excitation and emission focal volumes provided by co-registration of the excitation and emission signals thus increasing the sensitivity as well as decreasing the exposure time necessary to obtain an image.

  5. Some notes on the application of discrete wavelet transform in image processing

    SciTech Connect (OSTI)

    Caria, Egydio C. S. [Military Institute of Engineering, IME - Department of Mechanical and Materials Engineering, CEP 22290-270, Rio de Janeiro, RJ (Brazil); Costa A, Trajano A. de [Army Technology Center, CTEx - Division of War, CEP 23020-040 Rio de Janeiro, RJ (Brazil); Rebello, Joao Marcos A. [Department of Metallurgical and Materials Engineering, COPPE/UFRJ - Federal University of Rio de Janeiro, P.O. Box 68505 CEP 21941-972, Rio de Janeiro RJ (Brazil)

    2011-06-23

    Mathematical transforms are used in signal processing in order to extract what is known as 'hidden' information. One of these mathematical tools is the Discrete Wavelet Transform (DWT), which has been increasingly employed in non-destructive testing and, more specifically, in image processing. The main concern in the present work is to employ DWT to suppress noise without losing relevant image features. However, some aspects must be taken into consideration when applying DWT in image processing, mainly in the case of weld radiographs, in order to achieve consistent results. Three topics were selected as representative of these difficulties, as follows: 1) How can image matrix be filled to fit the 2{sup n} lines and 2{sup n} rows requirement? 2) How can the most suitable decomposition level of the DWT function and the correct choice of their coefficient suppression be selected? 3) Is there any influence of the scanning direction and the weld radiograph image, e.g., longitudinal or transversal, on the final processing image? It is known that some artifacts may be present in weld radiograph images. Indeed, the weld surface is frequently rough and rippled, what can be seen as gray level variation on the radiograph, being sometimes mistaken as defective areas. Depending on the position of these artifacts, longitudinal or transversal to the weld bead, they may have different influences on the image processing procedure. This influence is clearly seen in the distribution of the DWT Function coefficients. In the present work, examples of two weld radiographs of quite different image quality were given in order to exemplify it.

  6. IEEE TRANSACTIONS ON MEDICAL IMAGING VOL. 15, NO. 4, AUGUST 1996 453 Tracking Myocardial Deformation

    E-Print Network [OSTI]

    Duncan, James S.

    IEEE TRANSACTIONS ON MEDICAL IMAGING VOL. 15, NO. 4, AUGUST 1996 453 Tracking Myocardial Deformation Using Phase Contrast MR Velocity Fields: A Stochastic Approach Fran¸cois G. Meyer, Member, IEEE,, R. Todd Constable, Member, IEEE,, Albert J. Sinusas, and James. S. Duncan, Senior Member, IEEE

  7. Multiple Watermark Method for Privacy Control and Tamper Detection in Medical Images

    E-Print Network [OSTI]

    Roe, Paul

    Multiple Watermark Method for Privacy Control and Tamper Detection in Medical Images Chaw-Seng Woo1, and tampering can be de- tected using a fragile watermark. The embedded pa- tient data not only save storage embedding and the effectiveness of locating tampered regions. 1. Introduction As we move into the digital

  8. An Adaptive, Knowledge-Driven Medical Image Search Engine for Interactive Diffuse Parenchymal Lung Disease

    E-Print Network [OSTI]

    Chandy, John A.

    An Adaptive, Knowledge-Driven Medical Image Search Engine for Interactive Diffuse Parenchymal Lung Abstract Characterization and quantification of the severity of diffuse parenchymal lung diseases (DPLD have been obtained on a small test set. Keywords: CT; texture analysis; interstitial lung disease

  9. Accurate and Robust Centerline Extraction from Tubular Structures in Medical Images

    E-Print Network [OSTI]

    Subramanian, Kalpathi R.

    the power and usefulness of our model by testing it on a set of syn- thetically generated volumes, as well of objects in medical images, such as the lung, bronchia, blood vessels, and colon. Given the noise and other centerline extraction method, in terms of the smoothness as well as reduced artifacts, such as spurious

  10. SimITK: Model Driven Engineering for Medical Imaging Melissa Trezise1

    E-Print Network [OSTI]

    Cordy, James R.

    , Ontario, Canada 2 University of Calgary, Calgary, Alberta, Canada 3 Dept. of Electrical & Computer and Registration Toolkit (ITK) is a highly utilized open source medical imaging library providing chiefly Engineering 1. INTRODUCTION The Insight Registration and Segmentation Toolkit (ITK)1 is a comprehensive open-source

  11. 1258 IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 32, NO. 7, JULY 2013 GPU-Based Real-Time Volumetric Ultrasound

    E-Print Network [OSTI]

    Khuri-Yakub, Butrus T. "Pierre"

    1258 IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 32, NO. 7, JULY 2013 GPU-Based Real-Time Volumetric-time volumetric imaging with a ring array, a particularly at- tractive geometry in intracardiac and intravascular), maximum intensity pro- jection (MIP), real-time imaging, ring array, ultrasound imaging, volumetric

  12. Evaluation Axes for Medical Image Retrieval Systems --The ImageCLEF Experience

    E-Print Network [OSTI]

    Deselaers, Thomas

    in the field of diagnostic aid. Final goal with most impact will be the use as a diagnostic aid in a real­world clinical setting. Other applications of image retrieval and image classification can be the automatic related to the DICOM format (Digital Imaging and Communications in Medicine) and the sheer amount of data

  13. Three-dimensional passive seismic waveform imaging around the SAFOD site, California, using the generalized Radon transform

    E-Print Network [OSTI]

    van der Hilst, Robert D.

    We apply a three-dimensional (3D) generalized Radon transform (GRT) to scattered P-waves from 575 local earthquakes recorded at 68 temporary network stations for passive-source imaging of (near-vertical) structures close ...

  14. Abstract --Image segmentation plays an important role in medical image processing. The aim of conventional hard

    E-Print Network [OSTI]

    two tissue types in the whole volume. In this paper, we adopted the PV model proposed by Leemput (PV) effect. Using the hard segmentation methods, the PV effect can substantially decrease-EM mixture segmentation methodology was tested by digital phantom MR and patient CT images with PV effect

  15. Localization of polyhydroxybutyrate in sugarcane using Fourier-transform infrared microspectroscopy and multivariate imaging

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Lupoi, Jason S.; Smith-Moritz, Andreia; Singh, Seema; McQualter, Richard; Scheller, Henrik V.; Simmons, Blake A.; Henry, Robert J.

    2015-07-10

    Background: Slow-degrading, fossil fuel-derived plastics can have deleterious effects on the environment, especially marine ecosystems. The production of bio-based, biodegradable plastics from or in plants can assist in supplanting those manufactured using fossil fuels. Polyhydroxybutyrate (PHB) is one such biodegradable polyester that has been evaluated as a possible candidate for relinquishing the use of environmentally harmful plastics. Results: PHB, possessing similar properties to polyesters produced from non-renewable sources, has been previously engineered in sugarcane, thereby creating a high-value co-product in addition to the high biomass yield. This manuscript illustrates the coupling of a Fourier-transform infrared microspectrometer, equipped with a focalmore »plane array (FPA) detector, with multivariate imaging to successfully identify and localize PHB aggregates. Principal component analysis imaging facilitated the mining of the abundant quantity of spectral data acquired using the FPA for distinct PHB vibrational modes. PHB was measured in the chloroplasts of mesophyll and bundle sheath cells, acquiescent with previously evaluated plant samples. Conclusion: This study demonstrates the power of IR microspectroscopy to rapidly image plant sections to provide a snapshot of the chemical composition of the cell. While PHB was localized in sugarcane, this method is readily transferable to other value-added co-products in different plants.« less

  16. Cloning Hubble Deep Fields II: Models for Evolution by Bright Galaxy Image Transformation

    E-Print Network [OSTI]

    Rychard J. Bouwens; Tom Broadhurst; Joseph Silk

    1998-10-29

    In a companion paper we outlined a methodology for generating parameter-free, model-independent ``no-evolution'' fields of faint galaxy images, demonstrating the need for significant evolution in the HDF at faint magnitudes. Here we incorporate evolution into our procedure, by transforming the input bright galaxy images with redshift, for comparison with the HDF at faint magnitudes. Pure luminosity evolution is explored assuming that galaxy surface brightness evolves uniformly, at a rate chosen to reproduce the I-band counts. This form of evolution exacerbates the size discrepancy identified by our no-evolution simulations, by increasing the area of a galaxy visible to a fixed isophote. Reasonable dwarf-augmented models are unable to generate the count excess invoking moderate rates of stellar evolution. A plausible fit to the counts and sizes is provided by `mass-conserving' density-evolution, consistent with small-scale hierarchical growth, where the product of disk area and space density is conserved with redshift. Here the increased surface brightness generated by stellar evolution is accomodated by the reduced average galaxy size, for a wide range of geometries. These models are useful for assessing the limitations of the HDF images, by calculating their rates of incompleteness and the degree of over-counting. Finally we demonstrate the potential for improvement in quantifying evolution at fainter magnitudes using the HST Advanced Camera, with its superior UV and optical performance.

  17. IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 24, NO. 4, APRIL 2005 457 Efficient Pipeline for Image-Based Patient-Specific

    E-Print Network [OSTI]

    Frangi, Alejandro

    IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 24, NO. 4, APRIL 2005 457 Efficient Pipeline for Image of the vascular structures. We conclude that with the proposed modeling pipeline clinical studies involving large on their relation to the parent vessel. The most serious complication happens when the aneurysm breaks. The risk

  18. Transformation Composition Transformational Geometry

    E-Print Network [OSTI]

    Ferguson, Thomas S.

    Isomotries Transformation Composition Congruence Transformational Geometry Christopher Ograin Christopher Ograin Transformational Geometry #12;Isomotries Transformation Composition Congruence Geo Transformational Geometry #12;Isomotries Transformation Composition Congruence Definitions Transformation

  19. Seismic imaging of deep low-velocity zone beneath the Dead Sea basin and transform fault: Implications for strain localization

    E-Print Network [OSTI]

    ten Brink, Uri S.

    consisted of two wide-angle seismic reflection and refraction profiles: a 280-km-long profile along vertical 4.5 Hz geophone, buried, and placed at intervals of 0.65­0.75 km along the profile. The data wereSeismic imaging of deep low-velocity zone beneath the Dead Sea basin and transform fault

  20. Three-dimensional medical image analysis using local dynamic algorithm selection on a multiple-instruction, multiple-data architecture. Doctoral thesis

    SciTech Connect (OSTI)

    Stytz, M.R.

    1989-01-01

    The dissertation outlines development of a medical imaging machine which renders 3D images from voxel data within a MIMD multiprocessor architecture at interactive rates. Interactive performance is achieved using local dynamic selection of the optimum adaptive recursive hidden-surface removal algorithm. A survey of the medical imaging, graphics, and medical imaging modality literature is provided. A description of Computerized Technology, Magnetic Resonance Imaging, Positron Emission Tomography, Single Photon Emission Computed Tomography, and Ultrasound imaging modalities is presented Previous work in 3D volume rendering graphics techniques and data models is introduced. Eleven medical imaging machines are examined with emphasis on characterization of the major innovation(s) and performance of each machine. A five stage image processing pipeline is described.

  1. Assessment of display performance for medical imaging systems: Executive summary of AAPM TG18 report

    SciTech Connect (OSTI)

    Samei, Ehsan; Badano, Aldo; Chakraborty, Dev [Duke Advanced Imaging Laboratories, Departments of Radiology, Physics, and Biomedical Engineering, Duke University, DUMC 3302, Durham, North Carolina 27710 (United States) and FDA, CDRH (United States)] [and others

    2005-04-01

    Digital imaging provides an effective means to electronically acquire, archive, distribute, and view medical images. Medical imaging display stations are an integral part of these operations. Therefore, it is vitally important to assure that electronic display devices do not compromise image quality and ultimately patient care. The AAPM Task Group 18 (TG18) recently published guidelines and acceptance criteria for acceptance testing and quality control of medical display devices. This paper is an executive summary of the TG18 report. TG18 guidelines include visual, quantitative, and advanced testing methodologies for primary and secondary class display devices. The characteristics, tested in conjunction with specially designed test patterns (i.e., TG18 patterns), include reflection, geometric distortion, luminance, the spatial and angular dependencies of luminance, resolution, noise, glare, chromaticity, and display artifacts. Geometric distortions are evaluated by linear measurements of the TG18-QC test pattern, which should render distortion coefficients less than 2%/5% for primary/secondary displays, respectively. Reflection measurements include specular and diffuse reflection coefficients from which the maximum allowable ambient lighting is determined such that contrast degradation due to display reflection remains below a 20% limit and the level of ambient luminance (L{sub amb}) does not unduly compromise luminance ratio (LR) and contrast at low luminance levels. Luminance evaluation relies on visual assessment of low contrast features in the TG18-CT and TG18-MP test patterns, or quantitative measurements at 18 distinct luminance levels of the TG18-LN test patterns. The major acceptable criteria for primary/secondary displays are maximum luminance of greater than 170/100 cd/m{sup 2}, LR of greater than 250/100, and contrast conformance to that of the grayscale standard display function (GSDF) of better than 10%/20%, respectively. The angular response is tested to ascertain the viewing cone within which contrast conformance to the GSDF is better than 30%/60% and LR is greater than 175/70 for primary/secondary displays, or alternatively, within which the on-axis contrast thresholds of the TG18-CT test pattern remain discernible. The evaluation of luminance spatial uniformity at two distinct luminance levels across the display faceplate using TG18-UNL test patterns should yield nonuniformity coefficients smaller than 30%. The resolution evaluation includes the visual scoring of the CX test target in the TG18-QC or TG18-CX test patterns, which should yield scores greater than 4/6 for primary/secondary displays. Noise evaluation includes visual evaluation of the contrast threshold in the TG18-AFC test pattern, which should yield a minimum of 3/2 targets visible for primary/secondary displays. The guidelines also include methodologies for more quantitative resolution and noise measurements based on MTF and NPS analyses. The display glare test, based on the visibility of the low-contrast targets of the TG18-GV test pattern or the measurement of the glare ratio (GR), is expected to yield scores greater than 3/1 and GRs greater than 400/150 for primary/secondary displays. Chromaticity, measured across a display faceplate or between two display devices, is expected to render a u{sup '},v{sup '} color separation of less than 0.01 for primary displays. The report offers further descriptions of prior standardization efforts, current display technologies, testing prerequisites, streamlined procedures and timelines, and TG18 test patterns.

  2. 120 IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 29, NO. 1, JANUARY 2010 Computer-Aided Detection of Polyps in CT

    E-Print Network [OSTI]

    van Vliet, Lucas J.

    120 IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 29, NO. 1, JANUARY 2010 Computer-Aided Detection--We present a computer-aided detection (CAD) system for computed tomography colonography that orders and supervised classification. The characteris- tics of the detection step lead to specific choices

  3. 1682 IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 31, NO. 9, SEPTEMBER 2012 Low-Dose X-ray CT Reconstruction

    E-Print Network [OSTI]

    Wang, Ge

    1682 IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 31, NO. 9, SEPTEMBER 2012 Low-Dose X-ray CT and other diseases. How to reduce radiation dose while maintaining the diagnostic per- formance is a major- straint in terms of total variation (TV) minimization has already led to promising results for low-dose CT

  4. Copyright c 2003 Society of Photo-Optical Instrumentation Engineers. This paper will be published in Medical Imaging 2003: Image Processing, (San Diego, CA, February 2003), and is made available as an electronic preprint with permission of SPIE. One print

    E-Print Network [OSTI]

    Menzel, Randolf - Institut für Biologie

    Copyright c 2003 Society of Photo-Optical Instrumentation Engineers. This paper will be published in Medical Imaging 2003: Image Processing, (San Diego, CA, February 2003), and is made available

  5. BLOCK COMPRESSED SENSING OF IMAGES USING DIRECTIONAL TRANSFORMS Sungkwang Mun and James E. Fowler

    E-Print Network [OSTI]

    Fowler, James E.

    for their highly directional rep- resentation, while bivariate shrinkage is adapted to their multi- scale transform, bivariate shrinkage 1. INTRODUCTION Recent years have seen significant interest in the paradigm cast the reconstruction in the domain of recent transforms that feature a highly directional

  6. 1116 IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 30, NO. 5, MAY 2011 Statistical Interior Tomography

    E-Print Network [OSTI]

    Wang, Ge

    -known as-low-as- reasonably-achievable (ALARA) principle is widely accepted in the medical CT community

  7. LAPPED TRANSFORMS COMPRESSION

    E-Print Network [OSTI]

    de Queiroz, Ricardo L.

    Chapter 6 LAPPED TRANSFORMS FOR IMAGE COMPRESSION Ricardo L. de Queiroz Digital Imaging Technology aspects of lapped transforms and their applications to image compression. It is a subject that has been extensively studied mainly because lapped transforms are closely related to filter banks, wavelets, and time

  8. Digitales Video 1 Spatial Transformations

    E-Print Network [OSTI]

    spatial transformations derived for digital image warping applications in computer vision and computerDigitales Video 1 Spatial Transformations 2. SPATIAL TRANSFORMATIONS This chapter describes common graphics. A spatial transformation is a mapping function that establishes a spatial correspondence between

  9. 617IEEE TRANSACTlONS ON MEDICAL IMAGING. YOL. 16. NO. S. OCTOBER 1997 Y. Ziya Ider,* Member,IEEE,and L. Tugan Muftuler, Member,IEEE

    E-Print Network [OSTI]

    Ider, Yusuf Ziya

    617IEEE TRANSACTlONS ON MEDICAL IMAGING. YOL. 16. NO. S. OCTOBER 1997 Y. Ziya Ider,* Member,IEEE,and L. Tugan Muftuler, Member,IEEE Abstract-Electric currents are applied to body in numerous

  10. 2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSSIMIC) M07-4 Myocardial Blood Flow from Dynamic PET

    E-Print Network [OSTI]

    Duncan, James S.

    2012 IEEE Nuclear Science Symposium and Medical Imaging Conference Record (NSSIMIC) M07 to CT or MR!. Independent Component Analysis (lCA) is an established technique in signal processing [1

  11. Novel mathematical modeling approaches to assess ischemic stroke lesion evolution on medical imaging 

    E-Print Network [OSTI]

    Rekik, Islem

    2014-11-28

    Stroke is a major cause of disability and death worldwide. Although different clinical studies and trials used Magnetic Resonance Imaging (MRI) to examine patterns of change in different imaging modalities (eg: perfusion ...

  12. COLOR AND CONTRAST PERCEPTION IN MONOCHROME MEDICAL IMAGING FLAT-PANEL

    E-Print Network [OSTI]

    Kanicki, Jerzy

    and Jerzy Kanicki Dept. of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI. ABSTRACT The interpretation of diagnostic grayscale images by human beings relies on luminance surpass the visual system capabilities, offering all the information recorded in the image raw data

  13. Connectivity-preserving transformations of binary images q,qq Prosenjit Bose a

    E-Print Network [OSTI]

    Morin, Pat

    , G4 is the integer lattice. The graph G8 is the graph whose vertex set is Z2 and in which two pixels (x1,y1) and (x2,y2) are adjacent if and only if (x1 Ã? x2)2 + (y1 Ã? y2)2 6 2, that is, G8- tively, 8-neighbours) if they are adjacent in G4 (respectively, G8). Given a binary image I, the graph B4

  14. Gated frequency-resolved optical imaging with an optical parametric amplifier for medical applications

    SciTech Connect (OSTI)

    Cameron, S.M.; Bliss, D.E.

    1997-02-01

    Implementation of optical imagery in a diffuse inhomogeneous medium such as biological tissue requires an understanding of photon migration and multiple scattering processes which act to randomize pathlength and degrade image quality. The nature of transmitted light from soft tissue ranges from the quasi-coherent properties of the minimally scattered component to the random incoherent light of the diffuse component. Recent experimental approaches have emphasized dynamic path-sensitive imaging measurements with either ultrashort laser pulses (ballistic photons) or amplitude modulated laser light launched into tissue (photon density waves) to increase image resolution and transmissive penetration depth. Ballistic imaging seeks to compensate for these {open_quotes}fog-like{close_quotes} effects by temporally isolating the weak early-arriving image-bearing component from the diffusely scattered background using a subpicosecond optical gate superimposed on the transmitted photon time-of-flight distribution. The authors have developed a broadly wavelength tunable (470 nm -2.4 {mu}m), ultrashort amplifying optical gate for transillumination spectral imaging based on optical parametric amplification in a nonlinear crystal. The time-gated image amplification process exhibits low noise and high sensitivity, with gains greater than 104 achievable for low light levels. We report preliminary benchmark experiments in which this system was used to reconstruct, spectrally upcovert, and enhance near-infrared two-dimensional images with feature sizes of 65 {mu}m/mm{sup 2} in background optical attenuations exceeding 10{sup 12}. Phase images of test objects exhibiting both absorptive contrast and diffuse scatter were acquired using a self-referencing Shack-Hartmann wavefront sensor in combination with short-pulse quasi-ballistic gating. The sensor employed a lenslet array based on binary optics technology and was sensitive to optical path distortions approaching {lambda}/100.

  15. Method and apparatus for enhanced sensitivity filmless medical x-ray imaging, including three-dimensional imaging

    DOE Patents [OSTI]

    Parker, Sherwood (Berkeley, CA)

    1995-01-01

    A filmless X-ray imaging system includes at least one X-ray source, upper and lower collimators, and a solid-state detector array, and can provide three-dimensional imaging capability. The X-ray source plane is distance z.sub.1 above upper collimator plane, distance z.sub.2 above the lower collimator plane, and distance z.sub.3 above the plane of the detector array. The object to be X-rayed is located between the upper and lower collimator planes. The upper and lower collimators and the detector array are moved horizontally with scanning velocities v.sub.1, v.sub.2, v.sub.3 proportional to z.sub.1, z.sub.2 and z.sub.3, respectively. The pattern and size of openings in the collimators, and between detector positions is proportional such that similar triangles are always defined relative to the location of the X-ray source. X-rays that pass through openings in the upper collimator will always pass through corresponding and similar openings in the lower collimator, and thence to a corresponding detector in the underlying detector array. Substantially 100% of the X-rays irradiating the object (and neither absorbed nor scattered) pass through the lower collimator openings and are detected, which promotes enhanced sensitivity. A computer system coordinates repositioning of the collimators and detector array, and X-ray source locations. The computer system can store detector array output, and can associate a known X-ray source location with detector array output data, to provide three-dimensional imaging. Detector output may be viewed instantly, stored digitally, and/or transmitted electronically for image viewing at a remote site.

  16. Method and apparatus for enhanced sensitivity filmless medical x-ray imaging, including three-dimensional imaging

    DOE Patents [OSTI]

    Parker, S.

    1995-10-24

    A filmless X-ray imaging system includes at least one X-ray source, upper and lower collimators, and a solid-state detector array, and can provide three-dimensional imaging capability. The X-ray source plane is distance z{sub 1} above upper collimator plane, distance z{sub 2} above the lower collimator plane, and distance z{sub 3} above the plane of the detector array. The object to be X-rayed is located between the upper and lower collimator planes. The upper and lower collimators and the detector array are moved horizontally with scanning velocities v{sub 1}, v{sub 2}, v{sub 3} proportional to z{sub 1}, z{sub 2} and z{sub 3}, respectively. The pattern and size of openings in the collimators, and between detector positions is proportional such that similar triangles are always defined relative to the location of the X-ray source. X-rays that pass through openings in the upper collimator will always pass through corresponding and similar openings in the lower collimator, and thence to a corresponding detector in the underlying detector array. Substantially 100% of the X-rays irradiating the object (and neither absorbed nor scattered) pass through the lower collimator openings and are detected, which promotes enhanced sensitivity. A computer system coordinates repositioning of the collimators and detector array, and X-ray source locations. The computer system can store detector array output, and can associate a known X-ray source location with detector array output data, to provide three-dimensional imaging. Detector output may be viewed instantly, stored digitally, and/or transmitted electronically for image viewing at a remote site. 5 figs.

  17. Fourier Transform Infrared Imaging Showing Reduced Unsaturated Lipid Content in the Hippocampus of a mouse Model of Alzheimer's Disease

    SciTech Connect (OSTI)

    Leskovjan, A.C.; Kretlow, A.; Miller, L.M.

    2010-04-01

    Polyunsaturated fatty acids are essential to brain functions such as membrane fluidity, signal transduction, and cell survival. It is also thought that low levels of unsaturated lipid in the brain may contribute to Alzheimer's disease (AD) risk or severity. However, it is not known how accumulation of unsaturated lipids is affected in different regions of the hippocampus, which is a central target of AD plaque pathology, during aging. In this study, we used Fourier transform infrared imaging (FTIRI) to visualize the unsaturated lipid content in specific regions of the hippocampus in the PSAPP mouse model of AD as a function of plaque formation. Specifically, the unsaturated lipid content was imaged using the olefinic {double_bond}CH stretching mode at 3012 cm{sup -1}. The axonal, dendritic, and somatic layers of the hippocampus were examined in the mice at 13, 24, 40, and 56 weeks old. Results showed that lipid unsaturation in the axonal layer was significantly increased with normal aging in control (CNT) mice (p < 0.01) but remained low and relatively constant in PSAPP mice. Thus, these findings indicate that unsaturated lipid content is reduced in hippocampal white matter during amyloid pathogenesis and that maintaining unsaturated lipid content early in the disease may be critical in avoiding progression of the disease.

  18. Analysis of hyper-spectral data derived from an imaging Fourier transform: A statistical perspective

    SciTech Connect (OSTI)

    Sengupta, S.K.; Clark, G.A.; Fields, D.J.

    1996-01-10

    Fourier transform spectrometers (FTS) using optical sensors are increasingly being used in various branches of science. Typically, a FTS generates a three-dimensional data cube with two spatial dimensions and one frequency/wavelength dimension. The number of frequency dimensions in such data cubes is generally very large, often in the hundreds, making data analytical procedures extremely complex. In the present report, the problem is viewed from a statistical perspective. A set of procedures based on the high degree of inter-channel correlation structure often present in such hyper-spectral data, has been identified and applied to an example data set of dimension 100 x 128 x 128 comprising 128 spectral bands. It is shown that in this case, the special eigen-structure of the correlation matrix has allowed the authors to extract just a few linear combinations of the channels (the significant principal vectors) that effectively contain almost all of the spectral information contained in the data set analyzed. This in turn, enables them to segment the objects in the given spatial frame using, in a parsimonious yet highly effective way, most of the information contained in the data set.

  19. IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL. 23, NO. 12, DECEMBER 2014 5233 2D PronyHuang Transform: A New Tool

    E-Print Network [OSTI]

    Condat, Laurent

    IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL. 23, NO. 12, DECEMBER 2014 5233 2D Prony­Huang Transform: A New Tool for 2D Spectral Analysis Jérémy Schmitt, Member, IEEE, Nelly Pustelnik, Member, IEEE, Pierre Borgnat, Member, IEEE, Patrick Flandrin, Fellow, IEEE, and Laurent Condat, Member, IEEE Abstract

  20. Shape-Based Indexing in a Medical Image Database Department of Biomedical Engineering

    E-Print Network [OSTI]

    Dickinson,Sven

    vision, databases, and human-computer interaction. Some automatic image indexing methods have been pro Science Boston University, Boston, MA sclaroff@cs.bu.edu Jacob Feldman Department of Psychology Rutgers queries, and a user-friendly interface. Unfor- tunately, content-based retrieval is much more challenging

  1. Medical Volume Image Summarization Feng Ding Hao Li Yuan Cheng Wee Kheng Leow

    E-Print Network [OSTI]

    Leow, Wee Kheng

    about 10 seconds for loading and displaying on a 2.33 GHz Core 2 Duo PC with 4 GB memory. Consequently important details about 3D objects are lost in low-resolution images. In addition, the anatomical objects to produce an opacity value for each voxel based on simple user markups (e.g., Fig. 1(b)) indicating

  2. Transforms for the Motion Compensation Residual

    E-Print Network [OSTI]

    Kamisli, Fatih

    The Discrete-Cosine-Transform (DCT) is the most widely used transform in image and video compression. Its use in image compression is often justified by the notion that it is the statistically optimal transform for first-order ...

  3. A discrete fractional random transform

    E-Print Network [OSTI]

    Zhengjun Liu; Haifa Zhao; Shutian Liu

    2006-05-20

    We propose a discrete fractional random transform based on a generalization of the discrete fractional Fourier transform with an intrinsic randomness. Such discrete fractional random transform inheres excellent mathematical properties of the fractional Fourier transform along with some fantastic features of its own. As a primary application, the discrete fractional random transform has been used for image encryption and decryption.

  4. Compact, high-resolution, gamma ray imaging for scintimammography and other medical diagostic applications

    DOE Patents [OSTI]

    Majewski, Stanislaw (Grafton, VA); Weisenberger, Andrew G. (Grafton, VA); Wojcik, Randolph F. (Yorktown, VA); Steinbach, Daniela (Williamsburg, VA)

    1999-01-01

    A high resolution gamma ray imaging device includes an aluminum housing, a lead screen collimator at an opened end of the housing, a crystal scintillator array mounted behind the lead screen collimator, a foam layer between the lead screen collimator and the crystal scintillator array, a photomultiplier window coupled to the crystal with optical coupling grease, a photomultiplier having a dynode chain body and a base voltage divider with anodes, anode wire amplifiers each connected to four anodes and a multi pin connector having pin connections to each anode wire amplifier. In one embodiment the crystal scintillator array includes a yttrium aluminum perovskite (YAP) crystal array. In an alternate embodiment, the crystal scintillator array includes a gadolinium oxyorthosilicate (GSO) crystal array.

  5. Grazing incidence angle based sensing approach integrated with fiber-optic Fourier transform infrared (FO-FTIR) spectroscopy for remote and label-free detection of medical device contaminations

    SciTech Connect (OSTI)

    Hassan, Moinuddin Ilev, Ilko

    2014-10-15

    Contamination of medical devices has become a critical and prevalent public health safety concern since medical devices are being increasingly used in clinical practices for diagnostics, therapeutics and medical implants. The development of effective sensing methods for real-time detection of pathogenic contamination is needed to prevent and reduce the spread of infections to patients and the healthcare community. In this study, a hollow-core fiber-optic Fourier transform infrared spectroscopy methodology employing a grazing incidence angle based sensing approach (FO-FTIR-GIA) was developed for detection of various biochemical contaminants on medical device surfaces. We demonstrated the sensitivity of FO-FTIR-GIA sensing approach for non-contact and label-free detection of contaminants such as lipopolysaccharide from various surface materials relevant to medical device. The proposed sensing system can detect at a minimum loading concentration of approximately 0.7 ?g/cm{sup 2}. The FO-FTIR-GIA has the potential for the detection of unwanted pathogen in real time.

  6. IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 25, NO. 6, JUNE 2006 755 Adaptive Reproducing Kernel Particle Method for

    E-Print Network [OSTI]

    Thompson, Paul

    was supported in part by the National Institutes of Health (NIH) through the NIH Roadmap for Medical Research

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

    E-Print Network [OSTI]

    Harms, Kent David

    2001-01-01

    the Gabor Wavelet Transform (GWT) that effectively decomposed the digitized waveguide mode enabling identification of defect characteristic frequency tendencies. Three different bond defects were evaluated: tensile pull, needle puncture, and crease...

  8. Three-dimensional passive seismic waveform imaging around the SAFOD site, California, using the generalized Radon transform

    E-Print Network [OSTI]

    van der Hilst, Robert Dirk

    . The GRT image profiles through or close by the SAFOD site reveal near-vertical reflectors closeThree-dimensional passive seismic waveform imaging around the SAFOD site, California, using-source imaging of (near-vertical) structures close to the San Andreas Fault Observatory at Depth (SAFOD) site

  9. Fine scale imaging of structures at and near the mantle transition zone using a generalized Radon transform

    E-Print Network [OSTI]

    Lamm, Rosalee Alicia

    2006-01-01

    We apply a generalized Radon transform (GRT) to the study of the transition zone discontinuities. The transition zone discontinuities, e.g. the '410' and '660', result from mineral phase changes that occur at depths ...

  10. Nuclear Imaging | Jefferson Lab

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

    Research Jefferson Lab's Radiation Detector and Imaging Group Members of Jefferson Lab's Radiation Detector & Medical Imaging Group design and build unique imaging devices based on...

  11. Design of a near-field coded aperture cameras for high-resolution medical and industrial gamma-ray imaging

    E-Print Network [OSTI]

    Accorsi, Roberto, 1971-

    2001-01-01

    Coded Aperture Imaging is a technique originally developed for X-ray astronomy, where typical imaging problems are characterized by far-field geometry and an object made of point sources distributed over a mainly dark ...

  12. Transforms for prediction residuals in video coding

    E-Print Network [OSTI]

    Kam??l?, Fatih

    2010-01-01

    Typically the same transform, the 2-D Discrete Cosine Transform (DCT), is used to compress both image intensities in image coding and prediction residuals in video coding. Major prediction residuals include the motion ...

  13. Abstract--For the past decade, improving the performance and accuracy of medical image registration has been a driving

    E-Print Network [OSTI]

    Bhattacharyya, Shuvra S.

    technologies have enabled diagnoses and procedures simply not possible a decade ago. The increasing acquisition emission tomography (PET), magnetic resonance (MRI), ultrasound (US), etc.) and the sheer volume of data registration. Image registration is the process of fusing two images such that the features in one image

  14. IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 20, NO. 10, OCTOBER 2001 1009 Deblurring Subject to Nonnegativity Constraints

    E-Print Network [OSTI]

    O'Sullivan, Joseph A.

    -ray computed tomography imaging used in support of brachytherapy treatment of advanced cervical cancer. Index Terms--Brachytherapy, cervical cancer, computerized to- mography, metal artifacts, tomography. I illustrate one such application: X-ray tomographic imaging used in support of brachytherapy treatment

  15. IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 27, NO. 8, AUGUST 2008 1095 Automatic Detection of Regional Heart Rejection

    E-Print Network [OSTI]

    Moura, José

    of Regional Heart Rejection in USPIO-Enhanced MRI Hsun-Hsien Chang, Member, IEEE, José M. F. Moura*, Fellow. When a transplanted heart undergoes rejection, immune cells will infiltrate the allograft. Imaged by 2 in the image facilitates the identifi- cation of acute heart rejection. This paper develops a classifier

  16. Automatically Identifying Candidate Treatments from Existing Medical Literature

    E-Print Network [OSTI]

    Pratt, Wanda

    fish oil to treat Raynaud's disease (Swanson and Smalheiser 1997). Medical scientists are nowAutomatically Identifying Candidate Treatments from Existing Medical Literature Catherine Blake to transform the titles to known medical concepts, and the other applied additional semantic constraints

  17. IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 20, NO. 8, AUGUST 2001 677 Automated Segmentation of Multiple Sclerosis

    E-Print Network [OSTI]

    of Multiple Sclerosis Lesions by Model Outlier Detection Koen Van Leemput*, Frederik Maes, Dirk Vandermeulen for segmentation of multiple sclerosis (MS) lesions from multispec- tral magnetic resonance (MR) images. The method measurements. Index Terms--Digital brain atlas, MRI, multiple sclerosis, tissue classification. I. INTRODUCTION

  18. LAPPED TRANSFORMS Ricardo L. de Queiroz

    E-Print Network [OSTI]

    de Queiroz, Ricardo L.

    LAPPED TRANSFORMS Ricardo L. de Queiroz Advanced Color Imaging Xerox Corporation queiroz@wrc.xerox.com 0.1 Introduction The idea of a lapped transform (LT, for short) maintaining orthogonality and non with the blocking artifacts so common in traditional block transform coding of images. The idea was to extend

  19. TRANSFORME Dpartement

    E-Print Network [OSTI]

    Mignotte, Max

    (b) Transformée de Hough (Espace (s, #)) (c) Principales lignes reconstruites 5 #12; TRANSFORM�E DE

  20. Market Transformation

    SciTech Connect (OSTI)

    Not Available

    2008-09-01

    Summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its market transformation subprogram.

  1. Transformative Experiences

    E-Print Network [OSTI]

    Gering, Jon C.

    Transformative Experiences Internships & Field Schools Honors & Research Faculty Notables Alumni have at least one poten- tially transformative experi- ence - an opportunity to de- sign and carry out to be transformational are study abroad, internships, service learning, research, student-led learning, and lead- ership

  2. 1-D Transforms for the Motion Compensation Residual

    E-Print Network [OSTI]

    Kamisli, Fatih

    Transforms used in image coding are also commonly used to compress prediction residuals in video coding. Prediction residuals have different spatial characteristics from images, and it is useful to develop transforms that ...

  3. Market Transformation

    SciTech Connect (OSTI)

    2011-02-15

    This Fuel Cell Technologies Program fact sheet outlines current status and challenges in the market transformation of hydrogen and fuel cell technologies.

  4. Market Transformation

    Fuel Cell Technologies Publication and Product Library (EERE)

    This Fuel Cell Technologies Program fact sheet outlines current status and challenges in the market transformation of hydrogen and fuel cell technologies.

  5. Image Georeferencing Lesson 4: Image Georeferencing

    E-Print Network [OSTI]

    Butler, Christopher J.

    vector digitizing. You should read the section "Coordinate Transformation", in Chapter 4 of the GIS georeferencing, also known as image registration or image transformation. We'll then update a data layers through mapping vegetation, wetlands, and land use change. While many images are provided in digital formats

  6. LAPPED TRANSFORMS Ricardo L. de Queiroz

    E-Print Network [OSTI]

    de Queiroz, Ricardo L.

    LAPPED TRANSFORMS Ricardo L. de Queiroz Digital Imaging Technology Center Xerox Corporation queiroz transforms. It is a subject that has been extensively studied making available a large number of papers and books. This is mostly true because of the direct correspondence among lapped transforms, lter banks

  7. M. van Ginkel, L.J. van Vliet, P.W. Verbeek, M.A. Kraaijveld, E.P. Reding and H.J. Lammers, Robust Curve Detection using a Radon Transform in Orientation Space Applied to Fracture Detection in Borehole Images, in

    E-Print Network [OSTI]

    van Vliet, Lucas J.

    Curve Detection using a Radon Transform in Orientation Space Applied to Fracture Detection in Borehole Detection using a Radon Transform in Orientation Space Applied to Fracture Detection in Borehole Images M information, thus reducing the amount of false detections. The method is applied to fracture detection

  8. Healthcare Energy: Spotlight on Medical Equipment

    Broader source: Energy.gov [DOE]

    The Building Technologies Office conducted a healthcare energy end-use monitoring project for two sites. Read details about large medical imaging equipment energy results.

  9. Transformative copy

    E-Print Network [OSTI]

    Offenhuber, Dietmar

    2008-01-01

    The ability to create an unlimited number of identical copies is a privilege of digital documents. What if that would not be the case, if each copy of a digital file would go along with some sort of transformation? This ...

  10. Application of Two Phase (Liquid/Gas) Xenon Gamma-Camera for the Detection of Special Nuclear Material and PET Medical Imaging

    SciTech Connect (OSTI)

    McKinsey, Daniel Nicholas

    2013-08-27

    The McKinsey group at Yale has been awarded a grant from DTRA for the building of a Liquid Xenon Gamma Ray Color Camera (LXe-GRCC), which combines state-of-the-art detection of LXe scintillation light and time projection chamber (TPC) charge readout. The DTRA application requires a movable detector and hence only a single phase (liquid) xenon detector can be considered in this case. We propose to extend the DTRA project to applications that allow a two phase (liquid/gas) xenon TPC. This entails additional (yet minimal) hardware and extension of the research effort funded by DTRA. The two phase detector will have better energy and angular resolution. Such detectors will be useful for PET medical imaging and detection of special nuclear material in stationary applications (e.g. port of entry). The expertise of the UConn group in gas phase TPCs will enhance the capabilities of the Yale group and the synergy between the two groups will be very beneficial for this research project as well as the education and research projects of the two universities. The LXe technology to be used in this project has matured rapidly over the past few years, developed for use in detectors for nuclear physics and astrophysics. This technology may now be applied in a straightforward way to the imaging of gamma rays. According to detailed Monte Carlo simulations recently performed at Yale University, energy resolution of 1% and angular resolution of 3 degrees may be obtained for 1.0 MeV gamma rays, using existing technology. With further research and development, energy resolution of 0.5% and angular resolution of 1.3 degrees will be possible at 1.0 MeV. Because liquid xenon is a high density, high Z material, it is highly efficient for scattering and capturing gamma rays. In addition, this technology scales elegantly to large detector areas, with several square meter apertures possible. The Yale research group is highly experienced in the development and use of noble liquid detectors for astrophysics, most recently in the XENON10 experiment. The existing facilities at Yale are fully adequate for the completion of this project. The facilities of the UConn group at the LNS at Avery Point include a (clean) lab for detector development and this group recently delivered an Optical Readout TPC (O-TPC) for research in Nuclear Astrophysics at the TUNL in Duke University. The machine shop at UConn will be used (free of charge) for producing the extra hardware needed for this project including grids and frames.

  11. Medical Imaging Computed Tomography (CT)

    E-Print Network [OSTI]

    Massey, Thomas N.

    #12;LSO-APD Array Schematic #12;Time-of-Flight PET #12;Energy Spectrum with lutetium oxyorthosilicate

  12. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you notHeat Pumps Heat Pumpsfacility doe logo CH2M-WG logoImaging

  13. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenry Bellamy, Ph.D.FoodHydropower,PrincipalIdahoImaging Print The

  14. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenry Bellamy, Ph.D.FoodHydropower,PrincipalIdahoImaging Print

  15. Fourier Transform Pairs The Fourier transform transforms a function of

    E-Print Network [OSTI]

    Masci, Frank

    Fourier Transform Pairs The Fourier transform transforms a function of time, f(t), into a function of frequency, F(s): F {f(t)}(s) = F(s) = Z - f(t)e- j2st dt. The inverse Fourier transform transforms a func. The inverse Fourier transform of the Fourier trans- form is the identity transform: f(t) = Z - Z - f()e- j2s

  16. Image alignment

    DOE Patents [OSTI]

    Dowell, Larry Jonathan

    2014-04-22

    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.

  17. FOURIER TRANSFORM METHODS IN GEOPHYSICS David Sandwell, January, 2013

    E-Print Network [OSTI]

    Sandwell, David T.

    1 FOURIER TRANSFORM METHODS IN GEOPHYSICS David Sandwell, January, 2013 1. Fourier Transforms Fourier transform are use in many areas of geophysics such as image processing, time series analysis, and antenna design. Here we focus on the use of fourier transforms for solving linear partial differential

  18. Fast Algorithms for Image Reconstruction with Application to Partially Parallel MR Imaging

    E-Print Network [OSTI]

    Yin, Wotao

    Fast Algorithms for Image Reconstruction with Application to Partially Parallel MR Imaging Yunmei. Key words. Image reconstruction, Variable splitting, TV denoising, Nonlinear optimization 1 from an emerging magnetic resonance (MR) medical imaging technique known as partially parallel imaging

  19. Hough Transform Common Names: Hough transform

    E-Print Network [OSTI]

    Masci, Frank

    Hough Transform Common Names: Hough transform Brief Description The Hough transform is a technique that the desired features be specified in some parametric form, the classical Hough transform is most commonly used for the detection of regular curves such as lines, circles, ellipses, etc. A generalized Hough transform can

  20. The Generalised Radon Transform: Sampling and Memory Considerations

    E-Print Network [OSTI]

    van Vliet, Lucas J.

    The Generalised Radon Transform: Sampling and Memory Considerations C.L. Luengo Hendriks, M. van. The generalised Radon transform is a well-known tool for detecting parameterised shapes in an image. Applying the Radon trans- form to an image results in a parameter response function (PRF). Curves in the image become

  1. Non-radioactive molecular imaging of cancer drugs The overall goal of the research project performed in a collaboration between the University medical

    E-Print Network [OSTI]

    Twente, Universiteit

    Non-radioactive molecular imaging of cancer drugs The overall goal of the research project of Twente is to develop anti-cancer drugs primarily based on non-radioactive molecular imaging. This research will guide patient-tailored selection of drugs directed at the HER pathway, measure in vivo drug

  2. PRE-MEDICAL PROFESSIONS Medical professional schools

    E-Print Network [OSTI]

    PRE-MEDICAL PROFESSIONS Medical professional schools encourage students to develop the broadest medical professions include: English Composition (English 101 and 102) Public Speaking (Comm 111 different from the other medical professions. The Optometry Admissions Test is required. Students should

  3. Efficient implementation of hough transform on multiprocessors 

    E-Print Network [OSTI]

    Datta, Abhijit

    1994-01-01

    The Hough Transform (HT) is known to be a powerful technique in shape recognition and motion analysis. On shared-memory multi-processors, Image Partitioning and Parameter Partitioning are data partitioning techniques which give rise to two different...

  4. Radon Transform Inversion using the Shearlet Representation

    E-Print Network [OSTI]

    Labate, Demetrio

    Radon Transform Inversion using the Shearlet Representation Flavia Colonna Department The inversion of the Radon transform is a classical ill-posed inverse problem where some method-optimal rate of convergence in estimating a large class of images from noisy Radon data. This is achieved

  5. Evaluating Transformer Losses 

    E-Print Network [OSTI]

    Grun, R. L. Jr.

    1989-01-01

    This paper outlines how to determine what transformer losses cost and how to evaluate transformer bids to optimize the investment....

  6. Testability Transformation --Program Transformation to Improve Testability

    E-Print Network [OSTI]

    Binkley, David W.

    Testability Transformation -- Program Transformation to Improve Testability Mark Harman1 , Andr, 26 Richmond Street, Glasgow G1 1XH, UK. Corresponding Author. Abstract. Testability transformation. The goal is to improve the testing process by transforming a program to one that is more amenable

  7. Testability Transformation: Program Transformation to Improve Testability

    E-Print Network [OSTI]

    Harman, Mark

    Testability Transformation: Program Transformation to Improve Testability An Overview of Recent Author. Abstract. Testability transformation is a new form of program transfor- mation in which the goal to some chosen test adequacy criterion. The goal is to improve the testing process by transforming

  8. Adaptive wiener image restoration kernel

    DOE Patents [OSTI]

    Yuan, Ding (Henderson, NV)

    2007-06-05

    A method and device for restoration of electro-optical image data using an adaptive Wiener filter begins with constructing imaging system Optical Transfer Function, and the Fourier Transformations of the noise and the image. A spatial representation of the imaged object is restored by spatial convolution of the image using a Wiener restoration kernel.

  9. The Unified Discrete Fourier-Hartley Transforms Processor

    E-Print Network [OSTI]

    Oraintara, Soontorn

    transform (DST) is useful for spectrum analysis, data compression, speech processing, biomedical signal all the phases of image and signal processing and cover a large range of biomedical signal and image Fourier-Hartley transform (UDHFT) processor for digital signal processing applications. The proposed

  10. Sandia Energy - Solar Market Transformation

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

    Solar Market Transformation Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Solar Market Transformation Solar Market TransformationTara...

  11. Medical Plans

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCentermillion Measurement of MuonMediation Ombuds MediationMedical

  12. Perfect NOT transformation and conjugate transformation

    E-Print Network [OSTI]

    Fengli Yan; Ting Gao; Zhichao Yan

    2012-03-15

    The perfect NOT transformation, probabilistic perfect NOT transformation and conjugate transformation are studied. Perfect NOT transformation criteria on a quantum state set $S$ of a qubit are obtained. Two necessary and sufficient conditions for realizing a perfect NOT transformation on $S$ are derived. When these conditions are not satisfied we discuss a probabilistic perfect NOT transformation (gate). We construct a probabilistic perfect NOT machine (gate) by a general unitary-reduction operation. With a postselection of the measurement outcomes, the probabilistic NOT gate yields perfectly complements of the input states. We prove that one can realize probabilistically the NOT gate of the input states secretly chosen from a certain set $S=\\{|\\Psi_1>, |\\Psi_2>,..., |\\Psi_n>\\}$ if and only if $|\\Psi_1>, |\\Psi_2>,...,$ and $|\\Psi_n>$ are linearly independent. We also generalize the probabilistic NOT transformation to the conjugate transformation in the multi-level quantum system. The lower bound of the best possible efficiencies attained by a probabilistic perfect conjugate transformation are obtained.

  13. Medical Multimedia and Multimodality Databases Systems Peter L. Stanchev

    E-Print Network [OSTI]

    Stanchev, Peter

    and software have resulted in a shift from paper-based medical record to electronic medical record systems tomography (PET), ultrasound, electrical source (ESI), electrical impedance tomography (EIT). Medical systems, interpretation, management and communication of multimodality images, expandable and open system architecture

  14. Medical Image Computing and Computer-Aided Medical

    E-Print Network [OSTI]

    Payan, Yohan

    , are concerned. Indeed, laparo- scopic surgery, new tumour destruction techniques (e.g., HIFU, radiofrequency.chartier-kastler@psl.ap-hop-paris.fr). M. Bolla, A. Dusserre and J.-Y. Giraud are with the Grenoble University Hospital, Radiation Oncology

  15. IMAGE REGISTRATION FOR PERSPECTIVE DEFORMATION RECOVERY \\Lambda George Wolberg

    E-Print Network [OSTI]

    Wolberg, George

    a global perspective transformation. We demonstrate this approach on pairs of digital images subjected|zokaig@cs­mail.engr.ccny.cuny.edu Keywords: affine transformation, nonlinear least­squares, mosaics, perspective transformation, registration transformation that best matches a pair of images. This work estimates the perspective parameters

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

    E-Print Network [OSTI]

    Herz, Paul Richard, 1972-

    2004-01-01

    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 ...

  17. Image compression through wavelet transform coding - Information ...

    E-Print Network [OSTI]

    IEEE

    (Contracts N00014-90-l343, N00014—91—J-1152, and N00014-91—J-1076), the Defense Advanced Research Projects Agency (AFOSR Contract 90-. 0323) ...

  18. Metrics for enterprise transformation

    E-Print Network [OSTI]

    Blackburn, Craig D. (Craig David), S. M. Massachusetts Institute of Technology

    2009-01-01

    The objective of this thesis is to depict the role of metrics in the evolving journey of enterprise transformation. To this end, three propositions are explored: (i) metrics and measurement systems drive transformation, ...

  19. A Feature-Based, Robust, Hierarchical Algorithm for Registering Pairs of Images

    E-Print Network [OSTI]

    Radke, Rich

    overlaps compare favorably with retinal image registration techniques published in the literature. Index TermsÐRobust estimation, registration, transformation estimation, image mosaic, retinal imaging, feature extraction, feature refinement, multiscale methods, ophthalmic image processing, biomedical image processing

  20. Medical Aspects of Reliability

    SciTech Connect (OSTI)

    Atencio, Julian J.

    2014-05-05

    This presentation covers the medical evaluation as part of a human reliability program, particularly the various medical qualifications and potential disqualifiers.

  1. High flux solar energy transformation

    DOE Patents [OSTI]

    Winston, R.; Gleckman, P.L.; O'Gallagher, J.J.

    1991-04-09

    Disclosed are multi-stage systems for high flux transformation of solar energy allowing for uniform solar intensification by a factor of 60,000 suns or more. Preferred systems employ a focusing mirror as a primary concentrative device and a non-imaging concentrator as a secondary concentrative device with concentrative capacities of primary and secondary stages selected to provide for net solar flux intensification of greater than 2000 over 95 percent of the concentration area. Systems of the invention are readily applied as energy sources for laser pumping and in other photothermal energy utilization processes. 7 figures.

  2. High flux solar energy transformation

    DOE Patents [OSTI]

    Winston, Roland (Chicago, IL); Gleckman, Philip L. (Chicago, IL); O'Gallagher, Joseph J. (Flossmoor, IL)

    1991-04-09

    Disclosed are multi-stage systems for high flux transformation of solar energy allowing for uniform solar intensification by a factor of 60,000 suns or more. Preferred systems employ a focusing mirror as a primary concentrative device and a non-imaging concentrator as a secondary concentrative device with concentrative capacities of primary and secondary stages selected to provide for net solar flux intensification of greater than 2000 over 95 percent of the concentration area. Systems of the invention are readily applied as energy sources for laser pumping and in other photothermal energy utilization processes.

  3. Device for wavelength-selective imaging

    DOE Patents [OSTI]

    Frangioni, John V. (Wayland, MA)

    2010-09-14

    An imaging device captures both a visible light image and a diagnostic image, the diagnostic image corresponding to emissions from an imaging medium within the object. The visible light image (which may be color or grayscale) and the diagnostic image may be superimposed to display regions of diagnostic significance within a visible light image. A number of imaging media may be used according to an intended application for the imaging device, and an imaging medium may have wavelengths above, below, or within the visible light spectrum. The devices described herein may be advantageously packaged within a single integrated device or other solid state device, and/or employed in an integrated, single-camera medical imaging system, as well as many non-medical imaging systems that would benefit from simultaneous capture of visible-light wavelength images along with images at other wavelengths.

  4. Heart imaging method

    DOE Patents [OSTI]

    Collins, H. Dale (Richland, WA); Gribble, R. Parks (Richland, WA); Busse, Lawrence J. (Littleton, CO)

    1991-01-01

    A method for providing an image of the human heart's electrical system derives time-of-flight data from an array of EKG electrodes and this data is transformed into phase information. The phase information, treated as a hologram, is reconstructed to provide an image in one or two dimensions of the electrical system of the functioning heart.

  5. Medicine and Medical Center

    E-Print Network [OSTI]

    Faculty of Medicine and Medical Center (FM/AUBMC) #12;400 Faculty of Medicine and Medical Center (FM/AUBMC) Graduate Catalogue 2014­15 Faculty of Medicine and Medical Center (FM/AUBMC) Officers Vice President for Medical Affairs and the Raja N. Khuri Dean of the Faculty of Medicine Ziyad Ghazzal

  6. Emergency Medicine: On the Frontlines of Medical Education Transformation

    E-Print Network [OSTI]

    Holmboe, Eric S.

    2015-01-01

    of Emergency Physicians. ACEP Emergency Visits Up Sincehttp://newsroom. acep.org/ACEP-Emergency-Visits-Up-Since-

  7. Cadaver Dissection and the Ritual Transformation of Medical Students

    E-Print Network [OSTI]

    Laudermilk, Ryan

    2011-12-31

    , and subjective in a community that values rational objectivity and professional emotional distance between physician and patient. Thus, the cadaver dissection room becomes a site for practicing the management of emotion while manipulating the bodies of others...

  8. A Framework for Image-Based Constrained Registration with an Application to Local Rigidity

    E-Print Network [OSTI]

    Modersitzki, Jan

    and general framework for image registration when having additional constraints on the transformation. We in digital imaging. Roughly speak- ing, the problem is as follows: Given two images, find a "reasonable" spatial transformation such that a transformed version of the so-called template image, T, becomes

  9. Medical Imaging Technology | GE Global Research

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on dark matter By SarahMODELING Release date: Todd A.FebruaryMaking

  10. ACCOUNTING ROADMAP TRANSFORMING LIVES

    E-Print Network [OSTI]

    ACCOUNTING ROADMAP TO SUCCESS THE TRANSFORMING LIVES COLLEGE OF BUSINESS Department of Accounting #12;TABLEOFCONTENTS Greetings from Accounting Department Chair ..............................2 What is Accounting? .......................................................................4 Successful Study

  11. Transforming Biomass - main page

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

    Transforming Biomass to Bioenergy Feedstocks The DOE Biomass Program has shaped the vision of a national, commodity-scale feedstock supply system. Much progress has been made in...

  12. Stanford University Medical Center Lane Medical Library

    E-Print Network [OSTI]

    Kay, Mark A.

    of the library's privileges must be related to the instruction, research, patient care, and public welfare goals Library's resources and services must be related to the instruction, research, patient care and publicStanford University Medical Center Lane Medical Library 300 Pasteur Drive Room L109 Stanford, CA

  13. Transforming America's Energy Economy Transforming America's

    E-Print Network [OSTI]

    Laboratory National Renewable Energy Laboratory Oak Ridge National Laboratory Pacific Northwest National #12;Transforming America's Energy Economy A. Introduction: A Call for Action B. Envisioning the Future of Energy B.1 Renewable and Low-Carbon Energy Sources for Electricity Production B.2 Energy

  14. Biochemical transformation of coals

    DOE Patents [OSTI]

    Lin, Mow S. (Rocky Point, NY); Premuzic, Eugene T. (East Moriches, NY)

    1999-03-23

    A method of biochemically transforming macromolecular compounds found in solid carbonaceous materials, such as coal is provided. The preparation of new microorganisms, metabolically weaned through challenge growth processes to biochemically transform solid carbonaceous materials at extreme temperatures, pressures, pH, salt and toxic metal concentrations is also disclosed.

  15. Deployment & Market Transformation (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2012-04-01

    NREL's deployment and market transformation (D and MT) activities encompass the laboratory's full range of technologies, which span the energy efficiency and renewable energy spectrum. NREL staff educates partners on how they can advance sustainable energy applications and also provides clients with best practices for reducing barriers to innovation and market transformation.

  16. Exploring Functional Mellin Transforms

    E-Print Network [OSTI]

    J. LaChapelle

    2015-01-08

    We define functional Mellin transforms within a scheme for functional integration proposed in [1]. Functional Mellin transforms can be used to define functional traces, logarithms, and determinants. The associated functional integrals are useful tools for probing function spaces in general and $C^\\ast$-algebras in particular. Several interesting aspects are explored.

  17. Biochemical transformation of coals

    DOE Patents [OSTI]

    Lin, M.S.; Premuzic, E.T.

    1999-03-23

    A method of biochemically transforming macromolecular compounds found in solid carbonaceous materials, such as coal is provided. The preparation of new microorganisms, metabolically weaned through challenge growth processes to biochemically transform solid carbonaceous materials at extreme temperatures, pressures, pH, salt and toxic metal concentrations is also disclosed. 7 figs.

  18. Model-based reconstruction of magnetic resonance spectroscopic imaging

    E-Print Network [OSTI]

    Chatnuntawech, Itthi

    2013-01-01

    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 ...

  19. Southwestern Ontario Medical Education Network Southwestern Ontario Medical Education Network

    E-Print Network [OSTI]

    Lennard, William N.

    Southwestern Ontario Medical Education Network SWOMEN Southwestern Ontario Medical Education Network SWOMEN Contact: Charlotte Sikatori, Southwestern Ontario Medical Education Network (SWOMEN

  20. Logarithmic transformation of response Logarithmic transformation of response

    E-Print Network [OSTI]

    Komarek, Arnost

    Logarithmic transformation of response Logarithmic transformation of response Often, support S of Y is S = (0, ). Logarithm is then one of transformations to consider when trying to obtain a correct (wrong. Model Building 1. Transformation of response #12;Logarithmic transformation of response When does

  1. Program Transformation Mechanics A Classification of Mechanisms for Program Transformation

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Program Transformation Mechanics A Classification of Mechanisms for Program Transformation with a Survey of Existing Transformation Systems Jonne van Wijngaarden Eelco Visser UU-CS-2003-048 Institute Transformation Mechanics A Classification of Mechanisms for Program Transformation with a Survey of Existing

  2. Inversion formulas for the broken-ray Radon transform

    E-Print Network [OSTI]

    Lucia Florescu; Vadim A. Markel; John C. Schotland

    2010-07-23

    We consider the inverse problem of the broken ray transform (sometimes also referred to as the V-line transform). Explicit image reconstruction formulas are derived and tested numerically. The obtained formulas are generalizations of the filtered backprojection formula of the conventional Radon transform. The advantages of the broken ray transform include the possibility to reconstruct the absorption and the scattering coefficients of the medium simultaneously and the possibility to utilize scattered radiation which, in the case of the conventional X-ray tomography, is typically discarded.

  3. Emergency Medical Support

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1997-08-21

    This volume defines coordination between emergency planners and emergency medical support. Canceled by DOE G 151.1-4.

  4. AVLIS enrichment of medical isotopes

    SciTech Connect (OSTI)

    Haynam, C.A.; Scheibner, K.F.; Stern, R.C.; Worden, E.F.

    1996-12-31

    Under the Sponsorship of the United states Enrichment Corporation (USEC), we are currently investigating the large scale separation of several isotopes of medical interest using atomic vapor isotope separation (AVLIS). This work includes analysis and experiments in the enrichment of thallium 203 as a precursor to the production of thallium 201 used in cardiac imaging following heart attacks, on the stripping of strontium 84 from natural strontium as precursor to the production of strontium 89, and on the stripping of lead 210 from lead used in integrated circuits to reduce the number of alpha particle induced logic errors.

  5. Emergency Medical Treatment Required

    E-Print Network [OSTI]

    McQuade, D. Tyler

    Emergency Medical Treatment Required Non-Emergency Medical Treatment Required If possible, get help from colleague or supervisor Call 911 or go to hospital emergency room (for chemical exposure, bring Investigation Report" to Environmental Health & Safety within 48 hours Emergency Medical Treatment Required

  6. Medicine and Medical Center

    E-Print Network [OSTI]

    Faculty of Medicine and Medical Center (FM/AUBMC) #12;418 Faculty of Medicine and Medical Center (FM/AUBMC) Graduate Catalogue 2015­16 Faculty of Medicine and Medical Center (FM/AUBMC) Officers. Sayegh Executive Vice President for Medicine and Global Strategy and the Raja N. Khuri Dean

  7. THE MEDICAL PROFESSIONS Anthropology Professors

    E-Print Network [OSTI]

    Watkins, Joseph C.

    THE MEDICAL PROFESSIONS Anthropology Professors Linda Green Mark Nichter Mimi Nichter Ivy Pike medical and alternative medical professions Forensics Disaster Help #12;

  8. Transformer Abdullah Al-Otaibi

    E-Print Network [OSTI]

    Masoudi, Husain M.

    Transformer Abdullah Al-Otaibi ID#242374 Section#2 Abstract- this is a brief description for transformer and how it works. I. DEFINITION A transformer is a device that transfers electrical energy from of the transformer in 1831. The transformer is used by Faraday only to demonstrate the principle of electromagnetic

  9. Transformation Algebra R. J. Renka

    E-Print Network [OSTI]

    Renka, Robert

    Transformation Algebra R. J. Renka Department of Computer Science & Engineering University of North Texas 03/21/2011 R. J. Renka Transformation Algebra #12;Linear Transformations A point with Cartesian transformations. A linear transformation L on R3 is represented by a 3 by 3 matrix A. In fact, there is a 1

  10. Multiple, Simultaneous, Martensitic Transformations: Implications on Transformation Texture Intensities

    E-Print Network [OSTI]

    Cambridge, University of

    kind of martensite to be followed as a function of the steel temperature. The problem is relevantMultiple, Simultaneous, Martensitic Transformations: Implications on Transformation Texture, multiple martensitic transformations. Abstract. A theory is developed for martensite variants that have

  11. Lorentz transformation by mimicking the Lorentz transformation

    E-Print Network [OSTI]

    Bernhard Rothenstein; Stefan Popescu

    2007-09-24

    We show that starting with the fact that special relativity theory is concerned with a distortion of the observed length of a moving rod, without mentioning if it is a "contraction" or "dilation", we can derive the Lorentz transformations for the spacetime coordinates of the same event. This derivation is based on expressing the length of the moving rod as a sum of components with all the lengths involved in this summation being measured by the observers of the same inertial reference frame.

  12. Fourier-transform and global contrast interferometer alignment methods

    DOE Patents [OSTI]

    Goldberg, Kenneth A. (Berkeley, CA)

    2001-01-01

    Interferometric methods are presented to facilitate alignment of image-plane components within an interferometer and for the magnified viewing of interferometer masks in situ. Fourier-transforms are performed on intensity patterns that are detected with the interferometer and are used to calculate pseudo-images of the electric field in the image plane of the test optic where the critical alignment of various components is being performed. Fine alignment is aided by the introduction and optimization of a global contrast parameter that is easily calculated from the Fourier-transform.

  13. Development of a Digital Shearlet Transform Based on Pseudo-Polar FFT

    E-Print Network [OSTI]

    Kutyniok, Gitta

    Development of a Digital Shearlet Transform Based on Pseudo-Polar FFT Gitta Kutynioka, Morteza is a Matlab toolbox for digital shearlet transformation of two-D (image) data we developed following transform and allows us to translate Shearlet ideas naturally into a digital framework. However

  14. The Quantum Mellin transform

    E-Print Network [OSTI]

    J. Twamley; G. J. Milburn

    2007-02-12

    We uncover a new type of unitary operation for quantum mechanics on the half-line which yields a transformation to ``Hyperbolic phase space''. We show that this new unitary change of basis from the position x on the half line to the Hyperbolic momentum $p_\\eta$, transforms the wavefunction via a Mellin transform on to the critial line $s=1/2-ip_\\eta$. We utilise this new transform to find quantum wavefunctions whose Hyperbolic momentum representation approximate a class of higher transcendental functions, and in particular, approximate the Riemann Zeta function. We finally give possible physical realisations to perform an indirect measurement of the Hyperbolic momentum of a quantum system on the half-line.

  15. Transformation inverse design

    E-Print Network [OSTI]

    Liu, David

    We present a new technique for the design of transformation-optics devices based on large-scale optimization to achieve the optimal effective isotropic dielectric materials within prescribed index bounds, which is ...

  16. TRANSFORMATION TOUGHENING IN CERAMICS

    E-Print Network [OSTI]

    Evans, A.G.

    2013-01-01

    Preprint ~. Submitted to Advances in Ceramics TRANSFORMATIONTOUGHENING IN CERAMICS A.G. Evans, D.B. Marshall, and N.H.TRANSFORMATION TOUGHENING IN CERAMICS by Ao Go Evans, D. Be

  17. SUBSCRIBE TO Home > News > Hot new transformer cooled by ORNL

    E-Print Network [OSTI]

    Pennycook, Steve

    ADVERTISER: Methodist Medical Center A Higher Standard of Healthcare [ view complete ad ] ORNL It may look minus the 23,000 liters of oil used in conventional transformers. That in turn reduces the weight of a substation in a medium-sized city. Leaving out the oil allows the insulation system to continue to hum during

  18. OKLAHOMA STATE UNIVERSITY MEDICAL AUTHORITY

    E-Print Network [OSTI]

    Veiga, Pedro Manuel Barbosa

    OKLAHOMA STATE UNIVERSITY MEDICAL AUTHORITY June 30, 2010 #12;OKLAHOMA STATE UNIVERSITY MEDICAL Authority Members Oklahoma State University Medical Authority Tulsa, Oklahoma We have audited the accompanying statements of financial position of the Oklahoma State University Medical Authority (the

  19. OKLAHOMA STATE UNIVERSITY MEDICAL AUTHORITY

    E-Print Network [OSTI]

    Veiga, Pedro Manuel Barbosa

    OKLAHOMA STATE UNIVERSITY MEDICAL AUTHORITY June 30, 2009 #12;OKLAHOMA STATE UNIVERSITY MEDICAL Authority Members Oklahoma State University Medical Authority Tulsa, Oklahoma We have audited the accompanying statements of financial position of the Oklahoma State University Medical Authority (the

  20. Series Transmission Line Transformer

    DOE Patents [OSTI]

    Buckles, Robert A. (Livermore, CA); Booth, Rex (Livermore, CA); Yen, Boris T. (El Cerrito, CA)

    2004-06-29

    A series transmission line transformer is set forth which includes two or more of impedance matched sets of at least two transmissions lines such as shielded cables, connected in parallel at one end ans series at the other in a cascading fashion. The cables are wound about a magnetic core. The series transmission line transformer (STLT) which can provide for higher impedance ratios and bandwidths, which is scalable, and which is of simpler design and construction.

  1. Functional Mellin Transforms

    E-Print Network [OSTI]

    J. LaChapelle

    2015-01-07

    Functional integrals are defined in terms of locally compact topological groups and their associated Banach-valued Haar integrals. This approach generalizes the functional integral scheme of Cartier and DeWitt-Morette. The definition allows a construction of functional Mellin transforms. In turn, the functional Mellin transforms can be used to define functional traces, logarithms, and determinants. The associated functional integrals are useful tools for probing function spaces in general and $C^\\ast$-algebras in particular. Several interesting aspects are explored.

  2. Sandia Energy - Past Market Transformation Activities

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

    Past Market Transformation Activities Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Solar Market Transformation Past Market Transformation...

  3. Optical transformation from chirplet to fractional Fourier transformation kernel

    E-Print Network [OSTI]

    Hong-yi Fan; Li-yun Hu

    2009-02-11

    We find a new integration transformation which can convert a chirplet function to fractional Fourier transformation kernel, this new transformation is invertible and obeys Parseval theorem. Under this transformation a new relationship between a phase space function and its Weyl-Wigner quantum correspondence operator is revealed.

  4. Laplace Transforms An integral transform is an operator

    E-Print Network [OSTI]

    Ikenaga, Bruce

    9­28­1998 Laplace Transforms An integral transform is an operator F (s) = Z b a K(s; t)f(t) dt: The input to the transform is the function f(t); the output is the function F (s). (By convention, small letters denote the inputs to a transform, and the corresponding capital letters denote the corresponding

  5. The SDSS Imaging Pipelines

    E-Print Network [OSTI]

    Robert Lupton; James E. Gunn; Zeljko Ivezic; Gillian R. Knapp; Stephen Kent; Naoki Yasuda

    2001-05-24

    We summarise the properties of the Sloan Digital Sky Survey (SDSS) project, discuss our software infrastructure, and outline the architecture of the SDSS image processing pipelines. We then discuss two of the algorithms used in the SDSS image processing; the KL-transform based modelling of the spatial variation of the PSF, and the use of galaxy models in star/galaxy separation. We conclude with the first author's personal opinions on the challenges that the astronomical community faces with major software projects.

  6. Discrete Fourier Transform Javier Montoya

    E-Print Network [OSTI]

    Giger, Christine

    Discrete Fourier Transform Javier Montoya Photogrammetry and Remote Sensing ETH Zurich March 16, 2012 1 Introduction The Discrete form of the Fourier transform is known as Discrete Fourier Transform domain using the Inverse Discrete Fourier Transform (IDFT): f(x) = 1 N N-1 x=0 F(u)ej 2 N ux for u = 0, 1

  7. Laplace Transform May 7, 2008

    E-Print Network [OSTI]

    Mead, Jodi L.

    MATH 333 Laplace Transform Lab 9 May 7, 2008 In this lab we will compute the Laplace transform symbolically and the inverse Laplace transform both symbolically and numerically. Symbolic representation The command syms assigns a variable to be symbolic, laplace(f) finds the Laplace transform of a function f

  8. Video Toroid Cavity Imager

    DOE Patents [OSTI]

    Gerald, Rex E. II; Sanchez, Jairo; Rathke, Jerome W.

    2004-08-10

    A video toroid cavity imager for in situ measurement of electrochemical properties of an electrolytic material sample includes a cylindrical toroid cavity resonator containing the sample and employs NMR and video imaging for providing high-resolution spectral and visual information of molecular characteristics of the sample on a real-time basis. A large magnetic field is applied to the sample under controlled temperature and pressure conditions to simultaneously provide NMR spectroscopy and video imaging capabilities for investigating electrochemical transformations of materials or the evolution of long-range molecular aggregation during cooling of hydrocarbon melts. The video toroid cavity imager includes a miniature commercial video camera with an adjustable lens, a modified compression coin cell imager with a fiat circular principal detector element, and a sample mounted on a transparent circular glass disk, and provides NMR information as well as a video image of a sample, such as a polymer film, with micrometer resolution.

  9. Medical Nuclear Supply Chain Design: A Tractable Network Model and Computational

    E-Print Network [OSTI]

    Nagurney, Anna

    . Technetium, 99mTc, which is a decay product of Molybdenum, 99Mo, is the most commonly used medical the conduits for products used in nuclear medical imaging, which is routinely utilized by physicians of transportation can be used at this stage. Anna Nagurney and Ladimer S. Nagurney Medical Nuclear Supply Chain

  10. Medical Robots Surgical Assistants

    E-Print Network [OSTI]

    Pulfrey, David L.

    1 Medical Robots Surgical Assistants · Efficacy of Procedure ­ Accuracy ­ Longevity ­ Invasiveness · Augment human capabilities ­ Enabling new procedures ­ Time under anaesthetic #12;2 Surgical Robots) ­ Sensei (Hansen Medical) Autonomous Surgical Robots Robodoc.com #12;3 Guided Surgical Robots Makosurgical

  11. Animal Testing Medical Research

    E-Print Network [OSTI]

    Bech, Claus

    Arondsen Marit Gystøl #12;ZO-8091 Forsøksdyrlære Animal experiments in medical research NTNU ­ Norges ..................................................................................................................................................... 14 #12;ZO-8091 Forsøksdyrlære Animal experiments in medical research NTNU ­ Norges Teknisk have come from animal research. Animal research is defined as the use of non-human animals

  12. Conventional Medical Screening Program

    Broader source: Energy.gov [DOE]

    Medical screening is a strategy used to identify diseases or conditions in a select population at an early stage, often before signs and symptoms develop, and to refer individuals with suspicious findings to their personal physician or a specialist for further testing, diagnosis, and treatment. The program is not intended to serve as a substitute for routine medical exams through an individual's personal physician.

  13. STUDENT HEALTH MEDICAL SERVICES

    E-Print Network [OSTI]

    Huang, Haiying

    Ver 2.0 09/2012 ANNEX H STUDENT HEALTH & MEDICAL SERVICES #12;Ver 2.0 09/2012 H-i APPROVAL & IMPLEMENTATION Annex H Student Health & Medical Services This emergency management plan is hereby approved. ______________________________ ________________________ Robert Blum Date Director of Health Services Marie Bannister Date Director of Mental Health Services

  14. TO TRANSFORM BIOMEDICAL ENGINEERING

    E-Print Network [OSTI]

    Bermúdez, José Luis

    IT'S TIME TO TRANSFORM BIOMEDICAL ENGINEERING EDUCATION #12;Charles H. & Bettye Barclay Professor Head, Department of Biomedical Engineering Texas A&M University We're dedicated to solving the world in biomedical engineering research and education ­ and we're well on our way. Our faculty continues to engineer

  15. ACCOUNTING ROADMAP TRANSFORMING LIVES

    E-Print Network [OSTI]

    Collett Jr., Jeffrey L.

    ACCOUNTING ROADMAP TO SUCCESS THE TRANSFORMING LIVES COLLEGE OF BUSINESS Department of Accounting #12;TABLEOFCONTENTS Greetings from Accounting Department Chair 2 What is Accounting? 4 Successful Accounting Career Paths 8 Careers in Managerial Accounting 9 Careers in Government/Not-for-Profit (GNP

  16. Chemical Transformations in Wetlands

    E-Print Network [OSTI]

    Gray, Matthew

    ) as a byproduct. Methane "Swamp gas" Natural Greenhouse Gas CH4 Release (mg C/m2 d) Bogs (150) Marshes (90 associated with breakdown of organic C and nitrogenous waste and for respiration! NOTE: Microbial populations. CO2 + H2O H2CO3 Reduction of Ferric Iron Hydroxides #12;3 Nitrogen Transformations First e- Acceptor

  17. Probabilistically Accurate Program Transformations

    E-Print Network [OSTI]

    Rinard, Martin

    of loop perforation (which transforms loops to execute fewer iterations) to a set of computational the probabilistic guarantees for those bounds. 1.1 Loop Perforation In this paper, we focus on loop perforation demonstrate the util- ity and effectiveness of loop perforation in reducing the amount of time (and/or other

  18. Image Storage in Hot Vapors

    E-Print Network [OSTI]

    L. Zhao; T. Wang; Y. Xiao; S. F. Yelin

    2007-10-22

    We theoretically investigate image propagation and storage in hot atomic vapor. A $4f$ system is adopted for imaging and an atomic vapor cell is placed over the transform plane. The Fraunhofer diffraction pattern of an object in the object plane can thus be transformed into atomic Raman coherence according to the idea of ``light storage''. We investigate how the stored diffraction pattern evolves under diffusion. Our result indicates, under appropriate conditions, that an image can be reconstructed with high fidelity. The main reason for this procedure to work is the fact that diffusion of opposite-phase components of the diffraction pattern interfere destructively.

  19. Range descriptions for the spherical mean Radon transform

    E-Print Network [OSTI]

    M. Agranovsky; P. Kuchment; E. T. Quinto

    2006-09-02

    The transform considered in the paper averages a function supported in a ball in $\\RR^n$ over all spheres centered at the boundary of the ball. This Radon type transform arises in several contemporary applications, e.g. in thermoacoustic tomography and sonar and radar imaging. Range descriptions for such transforms are important in all these areas, for instance when dealing with incomplete data, error correction, and other issues. Four different types of complete range descriptions are provided, some of which also suggest inversion procedures. Necessity of three of these (appropriately formulated) conditions holds also in general domains, while the complete discussion of the case of general domains would require another publication.

  20. Evolution-equation approach to seismic image, and data ...

    E-Print Network [OSTI]

    2008-08-26

    Jun 2, 2008 ... cess of modelling data from an image is referred to as demigration. ..... The base manifold consists of all canonical transformations, the fibres ...

  1. Tomographic image reconstruction and rendering with texture-mapping hardware

    SciTech Connect (OSTI)

    Azevedo, S.G.; Cabral, B.K.; Foran, J.

    1994-07-01

    The image reconstruction problem, also known as the inverse Radon transform, for x-ray computed tomography (CT) is found in numerous applications in medicine and industry. The most common algorithm used in these cases is filtered backprojection (FBP), which, while a simple procedure, is time-consuming for large images on any type of computational engine. Specially-designed, dedicated parallel processors are commonly used in medical CT scanners, whose results are then passed to graphics workstation for rendering and analysis. However, a fast direct FBP algorithm can be implemented on modern texture-mapping hardware in current high-end workstation platforms. This is done by casting the FBP algorithm as an image warping operation with summing. Texture-mapping hardware, such as that on the Silicon Graphics Reality Engine (TM), shows around 600 times speedup of backprojection over a CPU-based implementation (a 100 Mhz R4400 in this case). This technique has the further advantages of flexibility and rapid programming. In addition, the same hardware can be used for both image reconstruction and for volumetric rendering. The techniques can also be used to accelerate iterative reconstruction algorithms. The hardware architecture also allows more complex operations than straight-ray backprojection if they are required, including fan-beam, cone-beam, and curved ray paths, with little or no speed penalties.

  2. Heavy ion medical accelerator options

    SciTech Connect (OSTI)

    Gough, R.A.; Alonso, J.R.

    1985-01-01

    This paper briefly explores the accelerator technology available for heavy ion medical accelerators in the mass range of 1 to 40 (protons through argon). Machines that are designed to produce the required intensities of a particular design ion, such as silicon (mass 28), can satisfy the intensity requirements for all lighter ions, and can produce beams with higher mass, such as argon, at somewhat reduced, but still useful intensity levels. They can also provide beams of radioactive ions, such as carbon-11 and neon-19, which are useful in diagnostic imaging and for directly verifiable treatments. These accelerators are all based on proven technology, and can be built at predictable costs. It is the conclusion of several design studies that they can be operated reliably in a hospital-based environment. 8 refs., 22 figs.

  3. A New Approach to Lung Image Segmentation using Fuzzy Possibilistic C-Means Algorithm

    E-Print Network [OSTI]

    Gomathi, M

    2010-01-01

    Image segmentation is a vital part of image processing. Segmentation has its application widespread in the field of medical images in order to diagnose curious diseases. The same medical images can be segmented manually. But the accuracy of image segmentation using the segmentation algorithms is more when compared with the manual segmentation. In the field of medical diagnosis an extensive diversity of imaging techniques is presently available, such as radiography, computed tomography (CT) and magnetic resonance imaging (MRI). Medical image segmentation is an essential step for most consequent image analysis tasks. Although the original FCM algorithm yields good results for segmenting noise free images, it fails to segment images corrupted by noise, outliers and other imaging artifact. This paper presents an image segmentation approach using Modified Fuzzy C-Means (FCM) algorithm and Fuzzy Possibilistic c-means algorithm (FPCM). This approach is a generalized version of standard Fuzzy CMeans Clustering (FCM) ...

  4. NEAR-FIELD IMAGING OF INFINITE ROUGH SURFACES 1 ...

    E-Print Network [OSTI]

    2013-09-03

    cal exploration (e.g., oil and gas exploration), and medical imaging (e.g., breast cancer detection). ... The method can be naturally extended to solve the trans-.

  5. December 2009 ARMY MEDICAL LOGISTICS

    E-Print Network [OSTI]

    US Army Corps of Engineers

    FM 4-02.1 December 2009 ARMY MEDICAL LOGISTICS DISTRIBUTION RESTRICTION: Approved for public Medical Logistics Contents Page PREFACE...................................................................................................ix Chapter 1 OVERVIEW OF ARMY MEDICAL LOGISTICS................................................. 1-1 Section

  6. Image-Guided Fracture David Mould

    E-Print Network [OSTI]

    Mould, David

    Image-Guided Fracture David Mould Department of Computer Science University of Saskatchewan Abstract We present an image filter that transforms an input line drawing into an image of a fractured of an uncracked texture. Key words: Non-photorealistic rendering, fracture, tex- ture synthesis 1 Introduction Non

  7. Transformable topological mechanical metamaterials

    E-Print Network [OSTI]

    D. Zeb Rocklin; Shangnan Zhou; Kai Sun; Xiaoming Mao

    2015-10-21

    Mechanical metamaterials are engineered materials that gain their remarkable mechanical properties, such as negative Poisson's ratios, negative compressibility, phononic bandgaps, and topological phonon modes, from their structure rather than composition. Here we propose a new design principle, based on a uniform soft deformation of the whole structure, to allow metamaterials to be immediately and reversibly transformed between states with contrasting mechanical and acoustic properties. These properties are protected by the topological structure of the phonon band of the whole structure and are thus highly robust against disorder and noise. We discuss the general classification of all structures that exhibit such soft deformations, and provide specific examples to demonstrate how to utilize soft deformations to transform a system between different regimes such that remarkable changes in their properties, including edge stiffness and speed of sound, can be achieved.

  8. Liquid Metal Transformers

    E-Print Network [OSTI]

    Sheng, Lei; Liu, Jing

    2014-01-01

    The room temperature liquid metal is quickly emerging as an important functional material in a variety of areas like chip cooling, 3D printing or printed electronics etc. With diverse capabilities in electrical, thermal and flowing behaviors, such fluid owns many intriguing properties that had never been anticipated before. Here, we show a group of unconventional phenomena occurring on the liquid metal objects. Through applying electrical field on the liquid metals immersed in water, a series of complex transformation behaviors such as self-assembling of a sheet of liquid metal film into a single sphere, quick mergences of separate metal droplets, controlled self-rotation and planar locomotion of liquid metal objects can be realized. Meanwhile, it was also found that two accompanying water vortexes were induced and reliably swirled near the rotating liquid metal sphere. Further, effects of the shape, size, voltage, orientation and geometries of the electrodes to control the liquid metal transformers were clar...

  9. Medical Information | Jefferson Lab

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

    Medical Information Occupational Medicine provides a range of health services and can work with your personal physician on your health needs. A D D I T I O N A L L I N K S:...

  10. Stieltjes Integral Theorem and The Hilbert Transform

    E-Print Network [OSTI]

    Luisiana Xavier Cundin; Norman Barsalou

    2011-05-20

    Stieltjes integral theorem is more commonly known by the phrase 'integration by parts' and enables rearrangement of an otherwise intractable integral to a more amenable form; often permitting completion of an integral in closed form. Applying Stieltjes integral theorem to the Hilbert transform yields an equivalent alternate integral definition, which is homeomorphic and exhibits accelerated computation. By virtue of the convolution theorem, the integral is mapped to Fourier image space and delineates requirements for the inverse Fourier transform, also, these requirements reveal the underlying reason for increased computational speed. Lastly, an alternative to Cauchy's integral formula is deduced by extending the line integral into the complex domain and involves a line integral with logarithmic kernel.

  11. FOURIER TRANSFORM MULTIPLE QUANTUM NMR

    E-Print Network [OSTI]

    Drobny, G.

    2011-01-01

    of transition observed in Fourier transform multiple quantumDecember 18-19, 1979 FOURIER TRANSFORM MULTIPLE QUANTUM NMRof London, December 1978. FOURIER TRANSFO~~ MULTIPLE QUANTUM

  12. Transformative Wave Technologies Kent, Washington

    E-Print Network [OSTI]

    California at Davis, University of

    Transformative Wave Technologies Kent, Washington www.transformativewave.com #12;#12;North America are shifted to off peak times #12;#12;Transformative Wave Technologies www.transformativewave.com #12

  13. Discrete Radon transform has an exact, fast inverse and generalizes to operations other than sums along lines

    E-Print Network [OSTI]

    Press, William H.

    Discrete Radon transform has an exact, fast inverse and generalizes to operations other than sums¨otz, Druckm¨uller, and independently Brady have defined a discrete Radon transform (DRT) that sums an image-to-noise in the presence of pointlike clutter features of arbitrarily large amplitude. Radon transform | computerized

  14. Fourier Transform Infrared (FTIR) Spectroscopy

    E-Print Network [OSTI]

    Gerwert, Klaus

    Fourier Transform Infrared (FTIR) Spectroscopy Klaus Gerwert, Lehrstuhl fu¨r Biophysik, Ruhr, Germany Based in part on the previous version of this Encyclopedia of Life Sciences (ELS) article, Fourier Transform IR by Johannes Orphal. Fourier transform infrared (FTIR) spectroscopy is an experimental technique

  15. LORENTZ TRANSFORMATIONS AND STATISTICAL MECHANICS

    E-Print Network [OSTI]

    of Lorentz transformations corresponding to radiation made its ap­ pearance. We have yet to see a description of these ``radiation'' transformations in the Physics literature. The complexification of the Lorentz Transformations Mathematics Subject Classification. 57R45, 17B90, 15A63. Key words and phrases. exponential map, singularity

  16. LORENTZ TRANSFORMATIONS AND STATISTICAL MECHANICS

    E-Print Network [OSTI]

    transformations corresponding to radiation made its ap- pearance. We have yet to see a description of these "radiation" transformations in the Physics literature. The complexification of the Lorentz Transformations Mathematics Subject Classification. 57R45, 17B90, 15A63. Key words and phrases. exponential map, singularity

  17. Image-guided robots for dot-matrix tumor ablation

    E-Print Network [OSTI]

    Walsh, Conor James

    2010-01-01

    Advances in medical imaging now provides detailed images of solid tumors inside the body and miniaturized energy delivery systems enable tumor destruction through local heating powered by a thin electrode. However, the use ...

  18. Advancements in branched bottlebrush polymers for responsive, targeted imaging

    E-Print Network [OSTI]

    Sowers, Molly A. (Molly Ann)

    2015-01-01

    Multi-modality and stimuli responsive nanoparticles are promising platform materials for medical imaging and diagnostics. Specifically magnetic resonance imaging (MRI) and nearinfrared (NIR) fluorescent probes can be used ...

  19. The contents of this article and referenced websites, such as text, graphics, images, and other material contained on the site are for informational purposes only. The content is not intended to be a substitute for professional medical advice, diagnosis,

    E-Print Network [OSTI]

    Washington at Seattle, University of

    The contents of this article and referenced websites, such as text, graphics, images, and other material contained on the site are for informational purposes only. The content is not intended for the contents of any "off-site" web page referenced from this server. © APS Healthcare, Inc., White Plains, NY

  20. The Industrial Transformation of Subarctic Canada

    E-Print Network [OSTI]

    Mathoor, Vineeth

    2011-01-01

    the pace and impact of industrial transformation in theReview: The Industrial Transformation of Subarctic Canada ByIndia Piper, Liza. The Industrial Transformation of

  1. Quantitative luminescence imaging system

    DOE Patents [OSTI]

    Erwin, David N. (San Antonio, TX); Kiel, Johnathan L. (San Antonio, TX); Batishko, Charles R. (West Richland, WA); Stahl, Kurt A. (Richland, WA)

    1990-01-01

    The QLIS images and quantifies low-level chemiluminescent reactions in an electromagnetic field. It is capable of real time nonperturbing measurement and simultaneous recording of many biochemical and chemical reactions such as luminescent immunoassays or enzyme assays. The system comprises image transfer optics, a low-light level digitizing camera with image intensifying microchannel plates, an image process or, and a control computer. The image transfer optics may be a fiber image guide with a bend, or a microscope, to take the light outside of the RF field. Output of the camera is transformed into a localized rate of cumulative digitalized data or enhanced video display or hard-copy images. The system may be used as a luminescent microdosimetry device for radiofrequency or microwave radiation, as a thermal dosimeter, or in the dosimetry of ultra-sound (sonoluminescence) or ionizing radiation. It provides a near-real-time system capable of measuring the extremely low light levels from luminescent reactions in electromagnetic fields in the areas of chemiluminescence assays and thermal microdosimetry, and is capable of near-real-time imaging of the sample to allow spatial distribution analysis of the reaction. It can be used to instrument three distinctly different irradiation configurations, comprising (1) RF waveguide irradiation of a small Petri-dish-shaped sample cell, (2) RF irradiation of samples in a microscope for the microscopie imaging and measurement, and (3) RF irradiation of small to human body-sized samples in an anechoic chamber.

  2. Quantitative luminescence imaging system

    DOE Patents [OSTI]

    Erwin, D.N.; Kiel, J.L.; Batishko, C.R.; Stahl, K.A.

    1990-08-14

    The QLIS images and quantifies low-level chemiluminescent reactions in an electromagnetic field. It is capable of real time nonperturbing measurement and simultaneous recording of many biochemical and chemical reactions such as luminescent immunoassays or enzyme assays. The system comprises image transfer optics, a low-light level digitizing camera with image intensifying microchannel plates, an image process or, and a control computer. The image transfer optics may be a fiber image guide with a bend, or a microscope, to take the light outside of the RF field. Output of the camera is transformed into a localized rate of cumulative digitalized data or enhanced video display or hard-copy images. The system may be used as a luminescent microdosimetry device for radiofrequency or microwave radiation, as a thermal dosimeter, or in the dosimetry of ultra-sound (sonoluminescence) or ionizing radiation. It provides a near-real-time system capable of measuring the extremely low light levels from luminescent reactions in electromagnetic fields in the areas of chemiluminescence assays and thermal microdosimetry, and is capable of near-real-time imaging of the sample to allow spatial distribution analysis of the reaction. It can be used to instrument three distinctly different irradiation configurations, comprising (1) RF waveguide irradiation of a small Petri-dish-shaped sample cell, (2) RF irradiation of samples in a microscope for the microscopic imaging and measurement, and (3) RF irradiation of small to human body-sized samples in an anechoic chamber. 22 figs.

  3. Attributed Transformational Code Generation for Dynamic Compilers \\Lambda

    E-Print Network [OSTI]

    Boyland, John Tang

    Attributed Transformational Code Generation for Dynamic Compilers \\Lambda John Boyland Computer compilers, that is, compilers that preserve execu­ tion state when newly compiled code is patched into an executing image, presents the compiler writer with a number of difficulties. First, all the complexity

  4. Transportation of medical isotopes

    SciTech Connect (OSTI)

    Nielsen, D.L.

    1997-11-19

    A Draft Technical Information Document (HNF-1855) is being prepared to evaluate proposed interim tritium and medical isotope production at the Fast Flux Test Facility (FFTF). This assessment examines the potential health and safety impacts of transportation operations associated with the production of medical isotopes. Incident-free and accidental impacts are assessed using bounding source terms for the shipment of nonradiological target materials to the Hanford Site, the shipment of irradiated targets from the FFTF to the 325 Building, and the shipment of medical isotope products from the 325 Building to medical distributors. The health and safety consequences to workers and the public from the incident-free transportation of targets and isotope products would be within acceptable levels. For transportation accidents, risks to works and the public also would be within acceptable levels. This assessment is based on best information available at this time. As the medical isotope program matures, this analysis will be revised, if necessary, to support development of a final revision to the Technical Information Document.

  5. Fourier interpolation stochastic optical fluctuation imaging

    E-Print Network [OSTI]

    Enderlein, Jörg

    Fourier interpolation stochastic optical fluctuation imaging Simon C. Stein,1 Anja Huss,1,2 Dirk H on Fourier transforms. We exemplify the method on simulated and experimental data. © 2015 Optical Society

  6. Instrumentation in medical systems

    SciTech Connect (OSTI)

    Chu, W.T. [Lawrence Berkeley Lab., CA (United States). Accelerator and Fusion Research Div.

    1995-05-01

    The demand for clinical use of accelerated heavy charged-particle (proton and light-ion) beams for cancer treatment is now burgeoning worldwide. Clinical trials are underway at more than a dozen accelerators. Several hospital-based accelerator facilities dedicated to radiation treatment of human cancer have been constructed, and their number is growing. Many instruments in medical systems have been developed for modifying extracted particle beams for clinical application, monitoring the delivery of the treatment beams, and controlling the treatment processes to ensure patient safety. These in turn demand new developments of instruments in controlling beam extraction, beam tuning, and beam transportation at the medical systems.

  7. Coresident sensor fusion and compression using the wavelet transform

    SciTech Connect (OSTI)

    Yocky, D.A.

    1996-03-11

    Imagery from coresident sensor platforms, such as unmanned aerial vehicles, can be combined using, multiresolution decomposition of the sensor images by means of the two-dimensional wavelet transform. The wavelet approach uses the combination of spatial/spectral information at multiple scales to create a fused image. This can be done in both an ad hoc or model-based approach. We compare results from commercial ``fusion`` software and the ad hoc, wavelet approach. Results show the wavelet approach outperforms the commercial algorithms and also supports efficient compression of the fused image.

  8. LU transformation invariant operators and LU transformation invariant

    E-Print Network [OSTI]

    Xin-wei Zha; Chun-min Zhang

    2007-02-06

    We proposed a concept of LU transformation invariant operators. By using this operator, arbitrary multi-qubit states LU transformation invariant and SLOCC invariant could be easily obtained. And we find that presences two kinds of invariant operators and corresponding invariants. One kind of operators yields LU invariants and the other operators results in SLOCC invariants. For three-qubit states, all independence LU transformation invariant are obtained. Furthermore, by this system method, arbitrary multi-qubit states invariants can be given.

  9. Change in fin morphology and position is a central component of the evolutionary transformation of functional

    E-Print Network [OSTI]

    Lauder, George V.

    Change in fin morphology and position is a central component of the evolutionary transformation © The Company of Biologists Limited 2001 JEB3613 A key evolutionary transformation of the locomotor system macrochirus) during both steady swimming and unsteady turning maneuvers. Digital particle image velocimetry

  10. Signal and imaging sciences workshop proceedings

    SciTech Connect (OSTI)

    Candy, J.V.

    1997-11-01

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

  11. Fourier transform and related integral transforms in superspace

    E-Print Network [OSTI]

    Hendrik De Bie

    2008-05-13

    In this paper extensions of the classical Fourier, fractional Fourier and Radon transforms to superspace are studied. Previously, a Fourier transform in superspace was already studied, but with a different kernel. In this work, the fermionic part of the Fourier kernel has a natural symplectic structure, derived using a Clifford analysis approach. Several basic properties of these three transforms are studied. Using suitable generalizations of the Hermite polynomials to superspace (see [H. De Bie, F. Sommen, Hermite and Gegenbauer polynomials in superspace using Clifford analysis, J. Phys. A 40 (2007) 10441-10456]) an eigenfunction basis for the Fourier transform is constructed.

  12. CMWT CMETCMW Medical Center

    E-Print Network [OSTI]

    Dai, Yang

    6060 12 Medical Center Polk FOREST PARK LINE 54/CERMAKLINE 6 12 60 12 7 Racine 157 157 157 157 157 888 Motorcycle Parking Emergency Stations Housing Residence Halls West Campus Single Student Residence (SSR) Polk Residence (SSR) Polk Street Residence (PSR) Student Residence Hall (SRH) South Campus Thomas Beckham Hall

  13. Improving medical waste disposal

    SciTech Connect (OSTI)

    O'Connor, L.

    1994-05-01

    This article describes the use of electron-beam irradiation, steam detoxification, and microwave disinfection systems rather than incineration to rid the waste stream of medical scraps. The topics of the article include biological waste stream sources and amounts, pyrolysis and oxidation, exhaust gas cleanup, superheated steam sterilization and detoxification.

  14. Making medical records more resilient

    E-Print Network [OSTI]

    Rudin, Robert (Robert Samuel)

    2007-01-01

    Hurricane Katrina showed that the current methods for handling medical records are minimally resilient to large scale disasters. This research presents a preliminary model for measuring the resilience of medical records ...

  15. LORENTZ TRANSFORMATIONS AND STATISTICAL MECHANICS

    E-Print Network [OSTI]

    class of Lorentz transformations corresponding to radiation made its * *ap- pearance. We have yet to see a description of these "radiation" transformations* * in the Physics literature, 15A63. Key words and phrases. exponential map, singularity, electro-magnetism, ener* *gy

  16. Affine transformation crossed product like algebras and noncommutative surfaces

    E-Print Network [OSTI]

    Joakim Arnlind; Sergei Silvestrov

    2009-03-11

    Several classes of *-algebras associated to the action of an affine transformation are considered, and an investigation of the interplay between the different classes of algebras is initiated. Connections are established that relate representations of *-algebras, geometry of algebraic surfaces, dynamics of affine transformations, graphs and algebras coming from a quantization procedure of Poisson structures. In particular, algebras related to surfaces being inverse images of fourth order polynomials (in R^3) are studied in detail, and a close link between representation theory and geometric properties is established for compact as well as non-compact surfaces.

  17. MedicalPhysicsWeb PHYSICS IN MEDICINE & BIOLOGY

    E-Print Network [OSTI]

    Sridhar, Srinivas

    MedicalPhysicsWeb PHYSICS IN MEDICINE & BIOLOGY Oct 11, 2010 D K Nagesha et al 2010 Phys. Med. Biol efficiency of IGRT can be further enhanced by biological in-situ dose painting (BIS-IGRT) of radiosensitizers for biological in-situ image-guided radio therapy (BIS-IGRT) Page 1 of 2Radiosensitizer-eluting nanocoatings

  18. Wavelength-encoded tomography based on optical temporal Fourier transform

    SciTech Connect (OSTI)

    Zhang, Chi; Wong, Kenneth K. Y.

    2014-09-01

    We propose and demonstrate a technique called wavelength-encoded tomography (WET) for non-invasive optical cross-sectional imaging, particularly beneficial in biological system. The WET utilizes time-lens to perform the optical Fourier transform, and the time-to-wavelength conversion generates a wavelength-encoded image of optical scattering from internal microstructures, analogous to the interferometery-based imaging such as optical coherence tomography. Optical Fourier transform, in principle, comes with twice as good axial resolution over the electrical Fourier transform, and will greatly simplify the digital signal processing after the data acquisition. As a proof-of-principle demonstration, a 150?-?m (ideally 36??m) resolution is achieved based on a 7.5-nm bandwidth swept-pump, using a conventional optical spectrum analyzer. This approach can potentially achieve up to 100-MHz or even higher frame rate with some proven ultrafast spectrum analyzer. We believe that this technique is innovative towards the next-generation ultrafast optical tomographic imaging application.

  19. Sensorless Planning for Medical Needle Insertion Procedures Ron Alterovitz and Ken Goldberg

    E-Print Network [OSTI]

    Goldberg, Ken

    implantation during permanent seed prostate brachytherapy to minimize seed placement error in simulation without relying on real-time imaging. I. INTRODUCTION Medical procedures such as brachytherapy, biopsies in the context of permanent seed prostate brachytherapy, a minimally invasive medical procedure that is widely

  20. Transformer Efficiency Assessment - Okinawa, Japan

    SciTech Connect (OSTI)

    Thomas L. Baldwin; Robert J. Turk; Kurt S. Myers; Jake P. Gentle; Jason W. Bush

    2012-05-01

    The US Army Engineering & Support Center, Huntsville (USAESCH), and the US Marine Corps Base (MCB), Okinawa, Japan retained Idaho National Laboratory (INL) to conduct a Transformer Efficiency Assessment of “key” transformers located at multiple military bases in Okinawa, Japan. The purpose of this assessment is to support the Marine Corps Base, Okinawa in evaluating medium voltage distribution transformers for potential efficiency upgrades. The original scope of work included the MCB providing actual transformer nameplate data, manufacturer’s factory test sheets, electrical system data (kWh), demand data (kWd), power factor data, and electricity cost data. Unfortunately, the MCB’s actual data is not available and therefore making it necessary to de-scope the original assessment. Note: Any similar nameplate data, photos of similar transformer nameplates, and basic electrical details from one-line drawings (provided by MCB) are not a replacement for actual load loss test data. It is recommended that load measurements are performed on the high and low sides of transformers to better quantify actual load losses, demand data, and power factor data. We also recommend that actual data, when available, be inserted by MCB Okinawa where assumptions have been made and then the LCC analysis updated. This report covers a generalized assessment of modern U.S. transformers in a three level efficiency category, Low-Level efficiency, Medium-Level efficiency, and High-Level efficiency.

  1. Transformer Efficiency Assessment - Okinawa, Japan

    SciTech Connect (OSTI)

    Thomas L. Baldwin; Robert J. Turk; Kurt S. Myers; Jake P. Gentle; Jason W. Bush

    2012-08-01

    The US Army Engineering & Support Center, Huntsville (USAESCH), and the US Marine Corps Base (MCB), Okinawa, Japan retained Idaho National Laboratory (INL) to conduct a Transformer Efficiency Assessment of “key” transformers located at multiple military bases in Okinawa, Japan. The purpose of this assessment is to support the Marine Corps Base, Okinawa in evaluating medium voltage distribution transformers for potential efficiency upgrades. The original scope of work included the MCB providing actual transformer nameplate data, manufacturer’s factory test sheets, electrical system data (kWh), demand data (kWd), power factor data, and electricity cost data. Unfortunately, the MCB’s actual data is not available and therefore making it necessary to de-scope the original assessment. Note: Any similar nameplate data, photos of similar transformer nameplates, and basic electrical details from one-line drawings (provided by MCB) are not a replacement for actual load loss test data. It is recommended that load measurements are performed on the high and low sides of transformers to better quantify actual load losses, demand data, and power factor data. We also recommend that actual data, when available, be inserted by MCB Okinawa where assumptions have been made and then the LCC analysis updated. This report covers a generalized assessment of modern U.S. transformers in a three level efficiency category, Low-Level efficiency, Medium-Level efficiency, and High-Level efficiency.

  2. Providence Newberg Medical Center

    High Performance Buildings Database

    Newberg, Oregon In 2002, Providence Health & Services began planning a new 188,000 square foot medical center in Newberg, Oregon to respond to the growing community's need for accessible health care. Since this was Providence's first new hospital in almost thirty years, its leaders decided to approach the project through innovative planning, design, and construction, including the achievement of lifecycle energy savings and a potential LEED certification. The hospital is comprised of 40 inpatient beds with views out to the surrounding rural landscape or into lushly planted internal courtyards.

  3. Medical Records Checklist

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested Parties - WAPAEnergy May 28 Webinar to Focus on TribalMediaSurveyMedical

  4. 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

  5. Transformations of Conditional Rewrite Systems (Extended Abstract)

    E-Print Network [OSTI]

    Gramlich, Bernhard

    Transformations of Conditional Rewrite Systems Revisited (Extended Abstract) Karl Gmeiner and Bernhard Gramlich TU Wien, Austria, {gmeiner,gramlich}@logic.at We revisit known transformations for describing and classifying such transformations, discuss the major problems arising, pro- vide simplified

  6. Reservoir characterization using wavelet transforms 

    E-Print Network [OSTI]

    Rivera Vega, Nestor

    2004-09-30

    Automated detection of geological boundaries and determination of cyclic events controlling deposition can facilitate stratigraphic analysis and reservoir characterization. This study applies the wavelet transformation, a recent advance in signal...

  7. National Symposium on Market Transformation

    Broader source: Energy.gov [DOE]

    Hosted by the American Council for an Energy-Efficient Economy (ACEEE) and the Consortium for Energy Efficiency (CEE), this three-day conference features speakers covering topics within the scope of market transformation.

  8. ENERGY TRANSFORMED: SUSTAINABLE ENERGY SOLUTIONS

    E-Print Network [OSTI]

    Roe, Paul

    ENERGY TRANSFORMED: SUSTAINABLE ENERGY SOLUTIONS AUSTRALIAN UNIVERSITY SURVEY SUMMARY OF QUESTIONNAIRE RESULTS WHAT IS THE STATE OF EDUCATION FOR ENERGY EFFICIENCY IN AUSTRALIAN ENGINEERING EDUCATION? PREPARED BY: #12;State of Education for Energy Efficiency in Australian Engineering Education Summary

  9. The World Is Waiting HMS launches transformative $750 million fundraising campaign

    E-Print Network [OSTI]

    Corey, David P.

    The World Is Waiting HMS launches transformative $750 million fundraising campaign Harvard Medical of the largest biomedical research community in the world.Together with our 16 renowned affiliated hospitals and research institutions, we are making breakthroughs that have a tangible impact on how the world understands

  10. Coupled diffusional/displacive transformations

    E-Print Network [OSTI]

    Mujahid, Shafiq Ahmad

    the variation in the martensite-start temperature with carbon concentration, but fails to estimate the corresponding changes in the bainite-start temperatures of the same steels. Thus, the accuracy claimed by the original theory appears fortuitous for bainite... and tempered steels and ball bearing alloys. Important recent developments involving the martensitic transformation in steels in- clude maraging steel (precipitation-hardened martensite), TRIP steels (transformation in- duced plasticity), ausforming steels...

  11. Phase Transformations in Heterogeneous Steels

    E-Print Network [OSTI]

    Khan, Shahid Amin

    1990-05-08

    for autocatalysis, relying on the fact that immediate vicinity of a plate is disturbed quite severely by a combination of elastic and plastic deformation processes due to the shear like nature of the transformation. • Stress-induced Nucleation, i.e., the activation... elements in steels is twofold. They can affect both the thermodynamics and kinetics of transformations. The hardenability of steels is related directly to the in- fluence on the nucleation and growth kinetics of the decomposition products. Primarily...

  12. Remote sensing, imaging, and signal engineering

    SciTech Connect (OSTI)

    Brase, J.M.

    1993-03-01

    This report discusses the Remote Sensing, Imaging, and Signal Engineering (RISE) trust area which has been very active in working to define new directions. Signal and image processing have always been important support for existing programs at Lawrence Livermore National Laboratory (LLNL), but now these technologies are becoming central to the formation of new programs. Exciting new applications such as high-resolution telescopes, radar remote sensing, and advanced medical imaging are allowing us to participate in the development of new programs.

  13. Apparatus and methods for continuous beam fourier transform mass spectrometry

    DOE Patents [OSTI]

    McLuckey, Scott A. (Oak Ridge, TN); Goeringer, Douglas E. (Oak Ridge, TN)

    2002-01-01

    A continuous beam Fourier transform mass spectrometer in which a sample of ions to be analyzed is trapped in a trapping field, and the ions in the range of the mass-to-charge ratios to be analyzed are excited at their characteristic frequencies of motion by a continuous excitation signal. The excited ions in resonant motions generate real or image currents continuously which can be detected and processed to provide a mass spectrum.

  14. Energy Department Finalizes Loan Guarantee for Transformational...

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

    for Transformational Rooftop Solar Project Energy Department Finalizes Loan Guarantee for Transformational Rooftop Solar Project September 30, 2011 - 3:37pm Addthis Washington D.C....

  15. Metamaterial flexible sheets could transform optics

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

    Metamaterial flexible sheets could transform optics Metamaterial flexible sheets could transform optics Advances would boost security screening systems, infrared thermal cameras,...

  16. Building America Expert Meeting: Transforming Existing Buildings...

    Energy Savers [EERE]

    Transforming Existing Buildings through New Media--An Idea Exchange Building America Expert Meeting: Transforming Existing Buildings through New Media--An Idea Exchange This report...

  17. Marketing and Market Transformation | Department of Energy

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

    Market Transformation Presentation More Documents & Publications Marketing and Market Transformation Working with the Real Estate Sector Trends in Real Estate and Energy Efficiency...

  18. Environmental Report Project Transforms Students into Informed...

    Energy Savers [EERE]

    Environmental Report Project Transforms Students into Informed Stakeholders Environmental Report Project Transforms Students into Informed Stakeholders June 20, 2014 - 9:49am...

  19. Multiple Reference Fourier Transform Holography: Five Images for the Price

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on77 PAGEMissionStressMove dataKiel7Multimodalof One Multiple

  20. Image Fusion and Registration a Variational Bernd Fischer1

    E-Print Network [OSTI]

    Modersitzki, Jan

    Image Fusion and Registration ­ a Variational Approach Bernd Fischer1 and Jan Modersitzki1@math.uni-luebeck.de Summary. Image fusion or registration is central to many challenges in medical imaging today and has-linear registration and fusion problems from a variational point of view. To do so, we review some of the most

  1. Biomedical Engineering Graduate Concentration Fall 2014 Biomedical Imaging

    E-Print Network [OSTI]

    Eustice, Ryan

    Biomedical Engineering Graduate Concentration ­ Fall 2014 Biomedical Imaging Advisor: Luis Hernandez-Garcia, Ph.D. BIOMEDICAL IMAGING: BIOMEDE 516 Medical Imaging Systems (3) (I) GENERAL (both courses are required): BIOMEDE 500 Biomedical Engineering Seminar (1) (I,II) BIOMEDE 550 Ethics

  2. Advanced medical accelerator design

    SciTech Connect (OSTI)

    Alonso, J.R.; Elioff, T.; Garren, A.

    1982-11-01

    This report describes the design of an advanced medical facility dedicated to charged particle radiotherapy and other biomedical applications of relativistic heavy ions. Project status is reviewed and some technical aspects discussed. Clinical standards of reliability are regarded as essential features of this facility. Particular emphasis is therefore placed on the control system and on the use of technology which will maximize operational efficiency. The accelerator will produce a variety of heavy ion beams from helium to argon with intensities sufficient to provide delivered dose rates of several hundred rad/minute over large, uniform fields. The technical components consist of a linac injector with multiple PIG ion sources, a synchrotron and a versatile beam delivery system. An overview is given of both design philosophy and selected accelerator subsystems. Finally, a plan of the facility is described.

  3. Medical Radioisotope | Nuclear Science | ORNL

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

    preparing Ac-225 in glove boxes for shipment to hospitals to support radiotherapy cancer clinical trials in multiple locations around the world. ORNL's Medical Radioisotope...

  4. Charting Image Artifacts in Digital Image Sequences Using Velocital Information Content

    E-Print Network [OSTI]

    Ahmed, Farid

    algorithm. The transmission algorithm is based on the discrete cosine transform (DCT), and thus introduces is currently marketed to the consumer as higher quality. However, digital image sequences still incur image artifacts, and spurious noise. Other author information: (Send correspondence to G.J.Power) G .J .Power: E

  5. High-resolution three-dimensional optical coherence tomography imaging of kidney microanatomy ex vivo

    E-Print Network [OSTI]

    Chen, Yu

    Optical coherence tomography (OCT) is an emerging medical imaging technology that enables high-resolution, noninvasive, cross-sectional imaging of microstructure in biological tissues in situ and in real time. When combined ...

  6. Ultrafast Transformations in Superionic Nanocrystals

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

    level. Depiction of the copper sulfide superionic state with copper in blue and sulfur in yellow. Image credit: Greg StewartSLAC National Accelerator Laboratory. In...

  7. Continuous Cooling Transformation (CCT) Assistant Professor

    E-Print Network [OSTI]

    Cambridge, University of

    Continuous Cooling Transformation (CCT) Diagrams R. Manna Assistant Professor Centre of Advanced.ac.uk #12;Continuous cooling transformation (CCT) diagram There are two types of CCT diagrams I) Plot and transformation finish temperature against transformation time on each cooling curve II) Plot of (for each type

  8. Transformations on Willmore surfaces Katrin Leschke

    E-Print Network [OSTI]

    Banaji,. Murad

    Transformations on Willmore surfaces Katrin Leschke Habilitationsschrift zur Erlangung der Venia . . . . . . . . . . . . . . . . . . . . . . . . . . 43 2 Transformations on conformal maps 47 2.1 The Darboux transformation . . . . . . . . . . . . . . . . . . . . . . . . . 47 2.1.1 The classical Darboux transformation on isothermic surfaces . . . 48 2.1.2 The spectral

  9. Phase Transformations in Confined Nanosystems

    SciTech Connect (OSTI)

    Shield, Jeffrey E.; Belashchenko, Kirill

    2014-04-29

    This project discovered that non-equilibrium structures, including chemically ordered structures not observed in bulk systems, form in isolated nanoscale systems. Further, a generalized model was developed that effectively explained the suppression of equilibrium phase transformations. This thermodynamic model considered the free energy decrease associated with the phase transformation was less than the increase in energy associated with the formation of an interphase interface, therefore inhibiting the phase transformation. A critical diameter exists where the system transitions to bulk behavior, and a generalized equation was formulated that successfully predicted this transition in the Fe-Au system. This provided and explains a new route to novel structures not possible in bulk systems. The structural characterization was accomplished using transmission electron microscopy in collaboration with Matthew Kramer of Ames Laboratory. The PI and graduate student visited Ames Laboratory several times a year to conduct the experiments.

  10. MEDICAL ENGINEERING OVERVIEW AND LUNCHEON

    E-Print Network [OSTI]

    Professor of Chemistry and Chemical Engineering; Director of the Jacobs Institute for Molecular EngineeringMEDICAL ENGINEERING OVERVIEW AND LUNCHEON FEBRUARY 10, 2014 Yu-Chong Tai Anna L. Rosen Professor of Electrical Engineering and Mechanical Engineering; Executive Officer for Medical Engineering yctai

  11. Faculty of Science Medical Physics

    E-Print Network [OSTI]

    Faculty of Science Medical Physics If you like physics and mathematics, but want a career in the rapidly expanding health sciences, then this honours BSc is for you. www.uwindsor.ca/physics Medical Physics opens the way to exciting new possibilities for career opportunities in the applications

  12. Discover your Library Medical Library

    E-Print Network [OSTI]

    Discover your Library Medical Library Welcome to the Gus Fraenkel Medical Library. The Library is a branch of the Flinders University Libraries including: Central (on the Plaza of the north ridge precinct) Law (on level 3 of the Central Library building) Sturt (at the Sturt precinct) as well

  13. Fourier transforms of UD integrals

    E-Print Network [OSTI]

    Igor Kondrashuk; Anatoly Kotikov

    2008-02-23

    UD integrals published by N. Usyukina and A. Davydychev in 1992-1993 are integrals corresponding to ladder-type Feynman diagrams. The results are UD functions $\\Phi^{(L)},$ where $L$ is the number of loops. They play an important role in N=4 supersymmetic Yang-Mills theory. The integrals were defined and calculated in the momentum space. In this paper the position space representation of UD functions is investigated. We show that Fourier transforms of UD functions are UD functions of space-time intervals but this correspondence is indirect. For example, the Fourier transform of the second UD integral is the second UD integral.

  14. Development of Toroidal Core Transformers

    SciTech Connect (OSTI)

    Leon, Francisco

    2014-05-31

    The original objective of this project was to design, build and test a few prototypes of singlephase dry-type distribution transformers of 25 kVA, 2.4 kV primary to 120 V transformers using cores made of a continuous steel strip shaped like a doughnut (toroid). At different points during the development of the project, the scope was enhanced to include the more practical case of a 25 kVA transformer for a 13.8 kV primary system voltage. Later, the scope was further expanded to design and build a 50 kVA unit to transformer voltage from 7.62 kV to 2x120 V. This is a common transformer used by Con Edison of New York and they are willing to test it in the field. The project officially started in September 2009 and ended in May 2014. The progress was reported periodically to DOE in eighteen quarterly reports. A Continuation Application was submitted to DOE in June 2010. In May 2011 we have requested a non-cost extension of the project. In December 2011, the Statement of Project Objectives (SOPO) was updated to reflect the real conditions and situation of the project as of 2011. A second Continuation Application was made and funding was approved in 2013 by DOE and the end date was extended to May 2014.The technical challenges that were overcome in this project include: the development of the technology to pass the impulse tests, derive a model for the thermal performance, produce a sound mechanical design, and estimate the inrush current. However, the greatest challenge that we faced during the development of the project was the complications of procuring the necessary parts and materials to build the transformers. The actual manufacturing process is relatively fast, but getting all parts together is a very lengthy process. The main products of this project are two prototypes of toroidal distribution transformers of 7.62 kV (to be used in a 13.8 kV system) to 2x120 V secondary (standard utilization voltage); one is rated at 25 kVA and the other at 50 kVA. The 25 kVA transformer passed the impulse test in KEMA high-voltage laboratories. Additional products include: nine papers published in the IEEE Transactions on Power Delivery, one patent has been filed, three PhD students were supported from beginning to graduation, five postdoctoral fellows, and three MSc students were partially supported. The electrical characteristics of our dry-type toroidal transformers are similar to those of the oil-immersed pole mounted transformers currently in use by many utilities, but toroids have higher efficiency. The no-load losses of the 50 kVA prototype are only 45 W. A standard transformer has no-load losses between 90 and 240 W. Thus, even the finest transformer built today with standard technology has double the amount of no-load losses than the prototype toroidal transformer. When the manufacturing process is prepared for mass production, the cost of a dry-type toroidal transformer would be similar to the price of an oil-filed standard design. However, because of the greatly reduced losses, the total ownership cost of a toroidal transformer could be about half of a traditional design. We got a grant from Power Bridge NY in the amount of $149,985 from June 2014 to May 2015 to continue developing the transformer with commercialization objectives. We are considering the possibility to incorporate a company to manufacture the transformers and have contacted investors. The current status of the real life testing is as follows: after several months of silence, Con Edison has re-started conversations and has shown willingness to test the transformer. Other companies, PSE&G and National Grid have recently also shown interest and we will present our product to them soon.

  15. Polyanalytic relativistic second Bargmann transforms

    E-Print Network [OSTI]

    Zouhair Mouayn

    2015-04-01

    We construct coherent states through special superpositions of photon number states of the relativistic isotonic oscillator. In each superposition the coefficients are chosen to be L 2 eingenfunctions of a sigma weight Maass Laplacian on the Poincare disk, which are associated with discrete eigenvalues. For each nonzero m the associated coherent states transform constitutes the m true polyanalytic extension of a relativistic version of the second Bargmann transform, whose integral kernel is expressed in terms of a special Appel Kampe de Feriet hypergeometric function. The obtained results could be used to extend the known semi classical analysis of quantum dynamics of the relativistic isotonic oscillator.

  16. The Dual Horospherical Radon Transform as a Limit of Spherical Radon Transforms

    E-Print Network [OSTI]

    Pasquale, Angela

    The Dual Horospherical Radon Transform as a Limit of Spherical Radon Transforms J. Hilgert, A of G. The horospherical Radon transform maps functions on X to functions on HorX by integrating over the dual horospherical Radon transform as a limit of dual spherical Radon transforms. 1. Introduction

  17. On the equivalence of state transformer semantics and predicate transformer semantics

    E-Print Network [OSTI]

    Keimel, Klaus

    On the equivalence of state transformer semantics and predicate transformer semantics Dedicated and the author [13] have worked out the equivalence between state transformer semantics and predicate transformer the last section, where the equivalence of predicate and state transformer semantics is finally put

  18. ENGI 2422 Laplace Transforms Page 5-01 5.01 Transforms

    E-Print Network [OSTI]

    George, Glyn

    ENGI 2422 Laplace Transforms Page 5-01 5.01 Transforms In some situations, a difficult problem can be transformed into an easier problem, whose solution can be transformed back into the solution of the original problem. For example, an integrating factor can sometimes be found to transform a non-exact first order

  19. Model Transformations? Transformation Models! Jean Bezivin (A) , Fabian Buttner (B) , Martin Gogolla (B) ,

    E-Print Network [OSTI]

    Gogolla, Martin - Fachbereich 3

    Model Transformations? Transformation Models! Jean Bezivin (A) , Fabian BË?uttner (B) , Martin of the current work on model transformations seems essentially operational and executable in nature. Executable, transformations can also be viewed as descriptive models by stating only the properties a transformation has

  20. Induced geometry from disformal transformation

    E-Print Network [OSTI]

    Fang-Fang Yuan; Peng Huang

    2015-02-08

    In this note, we use the disformal transformation to induce a geometry from the manifold which is originally Riemannian. The new geometry obtained here can be considered as a generalization of Weyl integrable geometry. Based on these results, we further propose a geometry which is naturally a generalization of Weyl geometry.

  1. Transforming California's Freight Transport System

    E-Print Network [OSTI]

    California at Davis, University of

    Transforming California's Freight Transport System Policy Forum on the Role of Freight Transport in Achieving Clean Air, Climate Goals, Economic Growth and Healthy Communities in California Jack Kitowski April 19, 2013 1 #12;Freight Impacts at Many Levels 2 #12;Freight Transport Today: Contribution

  2. Chinese Passives: Transformational or Lexical?

    E-Print Network [OSTI]

    Zhang, Jiuwu; Wen, Xiaohong

    1989-01-01

    There are two types of passive constructions in Chinese. Type I is a syntactic passive since it is derived through a transformational rule. Type II is a lexical passive. It has certain properties in common with the predicate adjectives in Chinese...

  3. RADON/RIDGELET SIGNATURE FOR IMAGE AUTHENTICATION Zhen Yao Nasir Rajpoot

    E-Print Network [OSTI]

    Rajpoot, Nasir

    RADON/RIDGELET SIGNATURE FOR IMAGE AUTHENTICATION Zhen Yao Nasir Rajpoot Dept. of Computer Science transform. The signature is extracted from the Radon domain and entropy coded after a 1D wavelet transform- derlying Radon transform plays an essential role in provid- ing such non-separable, directional properties

  4. Adaptive compressed image sensing based on wavelet-trees GE Healthcare,

    E-Print Network [OSTI]

    are producing larger and larger datasets. There is a clear market demand for increase of resolution in digital JPEG and JPEG2000 are both `transform-based' and work as follows: a. Apply a transform to the image Tx coefficients. One obtains exactly N coefficients for `critically-sampled' transforms and possibly more

  5. Radiation Dose From Medical Imaging: A Primer for Emergency Physicians

    E-Print Network [OSTI]

    Jones, Jesse G.A.; Mills, Christopher N.; Mogensen, Monique A.; Lee, Christoph I.

    2012-01-01

    risk imparted by low-dose radiation prove to be correct, CTattributable to low doses of ionizing radiation: assessingreducing radiation dose have developed low-dose CT protocols

  6. 2008 Nuclear Science Symposium, Medical Imaging Conference and

    E-Print Network [OSTI]

    Gruner, Sol M.

    at the Linac Coherent Light Source (LCLS) at the Stanford Linear Accelerator Center (SLAC). The detector is designed to collect x-rays scattered from femtosecond pulses produced by the LCLS x-ray laser at framing of Energy (DOE) support of the LCLS at SLAC and DOE-HER grant DEFG- 02-97ER62443. H. T. Philipp, L. J

  7. LIQUID XENON FILLED WIRE CHAMBERS FOR MEDICAL IMAGING APPLICATIONS

    E-Print Network [OSTI]

    Derenzo, S.E.; Budinger, T.F.; Smits, R.G.; Zaklad, H.; Alvarez, L.W.

    2008-01-01

    for the U. S. Atomic Energy Commission under Contract W -of the U. S. Atomic Energy Commission. scintillation camera.

  8. Nonlinear optical Fourier filtering technique for medical image processing

    E-Print Network [OSTI]

    Rao, D.V.G.L.N.

    for a 442 nm probe beam with a 568 nm control beam and vice versa is experimentally studied in detail causes of mortality in women.1 Early detection of the cancer is extremely important for successful

  9. Intrinsic Feature-Based Pose Measurement for Medical Imaging Motion

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACT EVALUATION PLANIsProcessRegulationRadiativeIntriguing DNA Editor

  10. An architecture for real time circle detection based on the Hough transform 

    E-Print Network [OSTI]

    Salem, Sanjay S.

    1992-01-01

    ) Hosame Abu-Amara (Member) , L~tr4+m'~gyy N. Kehtarnav (Member) . C. Jenkins (Member) J. W. Howze (Head of Department) May 1992 ABSTRACT An Architecture for Real Time Circle Detection Based on the Hough Transform. (1UIay 1992) Sanjay S Salem... Segmentation B. Image processing architectures 1. Parallel Architectures 2. Serial Architecture C. Overview of the Thesis I 2 2 4 5 6 7 8 THEORETICAL BACKGROUND 10 A. EIough transform 1. Line detection using Hough Transform . 2. Circle detection...

  11. Autofluorescence detection and imaging of bladder cancer realized through a cystoscope

    DOE Patents [OSTI]

    Demos, Stavros G. (Livermore, CA); deVere White, Ralph W. (Sacramento, CA)

    2007-08-14

    Near infrared imaging using elastic light scattering and tissue autofluorescence and utilizing interior examination techniques and equipment are explored for medical applications. The approach involves imaging using cross-polarized elastic light scattering and/or tissue autofluorescence in the Near Infra-Red (NIR) coupled with image processing and inter-image operations to differentiate human tissue components.

  12. A Direct Imaging Method for Inverse Scattering Using the ...

    E-Print Network [OSTI]

    Gang Bao; Kai Huang; Peijun Li; Hongkai Zhao

    2014-02-21

    radar and sonar, geophysical exploration, medical imaging, near-field and nano- optics. .... the convergence analysis of the block Gauss–Seidel iterative method. ..... plane incident waves and record the far-field pattern of the scattered waves.

  13. Structural Modeling and Analysis of Structures in Aorta Images 

    E-Print Network [OSTI]

    Xu, Hai

    2012-10-19

    ). ........................ 10 Figure 4. A synthetic binary image consisting of five sinusoidal curves was used to verify the accuracy of my Radon Transform (RT) algorithm. ............ 14 Figure 5. Computed angle for the principal (circumferential) direction estimated...) thickness across the arterial wall. In this dissertation, I propose an image analysis scheme to delineate spatial patterns of EL such as changes in its thickness across the arterial wall. Key features of my scheme include: 1) a Radon Transform based...

  14. Medical Image Computing and Computer Aided Medical Interventions applied to soft Work in progress in Urology.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    surgery, new tumour destruction techniques (e.g. HIFU, radiofrequency, or cryoablation), increasingly different physical agents including radiotherapy (radiation by external beams), brachytherapy (radiation by implanted radioactive seeds), HIghly Focused Ultrasound, radiofrequency, and cryoablation. Because of hal

  15. Grid Transformation Workshop Results Grid Transformation Workshop Results 2 April 2012

    E-Print Network [OSTI]

    Grid Transformation Workshop Results April 2012 #12;Grid Transformation Workshop Results 2 April 2012 Grid Transformation Workshop Results plications. We will explore the basics of data modeling. Each approach will be evaluated with the following criteria: feasibility, dependability, security

  16. Image Registration for Stability Testing of MEMS

    E-Print Network [OSTI]

    Memarsadeghi, Nargess; Blake, Peter N; Morey, Peter A; Landsman, Wayne B; Chambers, Victor J; Moseley, Samuel H; 10.1117/12.872076

    2013-01-01

    Image registration, or alignment of two or more images covering the same scenes or objects, is of great interest in many disciplines such as remote sensing, medical imaging, astronomy, and computer vision. In this paper, we introduce a new application of image registration algorithms. We demonstrate how through a wavelet based image registration algorithm, engineers can evaluate stability of Micro-Electro-Mechanical Systems (MEMS). In particular, we applied image registration algorithms to assess alignment stability of the MicroShutters Subsystem (MSS) of the Near Infrared Spectrograph (NIRSpec) instrument of the James Webb Space Telescope (JWST). This work introduces a new methodology for evaluating stability of MEMS devices to engineers as well as a new application of image registration algorithms to computer scientists.

  17. The Generalized Stieltjes Transform and Its Inverse

    E-Print Network [OSTI]

    John H. Schwarz

    2004-05-18

    The generalized Stieltjes transform (GST) is an integral transform that depends on a parameter $\\rho > 0$. In previous work a convenient form of the inverse transformation was derived for the case $\\rho = 3/2$. This paper generalizes that result to all $\\rho > 0$. It is a well-known fact that the GST can be formulated as an iterated Laplace transform, and that therefore its inverse can be expressed as an iterated inverse Laplace transform. The form of the inverse transform derived here is a one-dimensional integral that is considerably simpler.

  18. Time-reversal imaging of seismic sources and application to the great Sumatra earthquake

    E-Print Network [OSTI]

    Montagner, Jean-Paul

    medical imaging, underwater acoustics and non destructive testing. We present here the first application, which leads to numerous applications in medical imaging, communication or non destructive testing is based on both the source-receiver reciprocity and the time invariance of the wave equation in non

  19. Making Medical Records More Resilient

    E-Print Network [OSTI]

    Rudin, Robert

    2008-02-17

    Hurricane Katrina showed that the current methods for handling medicalrecords are minimally resilient to large scale disasters. This research presents a preliminary model for measuring the resilience of medical records ...

  20. NEUTRON IMAGING, RADIOGRAPHY AND TOMOGRAPHY.

    SciTech Connect (OSTI)

    SMITH,G.C.

    2002-03-01

    Neutrons are an invaluable probe in a wide range of scientific, medical and commercial endeavors. Many of these applications require the recording of an image of the neutron signal, either in one-dimension or in two-dimensions. We summarize the reactions of neutrons with the most important elements that are used for their detection. A description is then given of the major techniques used in neutron imaging, with emphasis on the detection media and position readout principle. Important characteristics such as position resolution, linearity, counting rate capability and sensitivity to gamma-background are discussed. Finally, the application of a subset of these instruments in radiology and tomography is described.

  1. General Counsel Legal Interpretation Regarding Medical Removal...

    Energy Savers [EERE]

    Regarding Medical Removal Protection Benefits Pursuant to 10 CFR Part 850, Chronic Beryllium Disease Prevention Program General Counsel Legal Interpretation Regarding Medical...

  2. ORISE Resources: Medical Office Preparedness Planner

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

    partnership with CDC yields Medical Office Preparedness Planner for Primary Care Providers The Medical Office Preparedness Planner is a tool for primary care providers (PCPs) and...

  3. Achromatic and uncoupled medical gantry

    DOE Patents [OSTI]

    Tsoupas, Nicholaos (Center Moriches, NY); Kayran, Dmitry (Rocky Point, NY); Litvinenko, Vladimir (Mt. Sinai, NY); MacKay, William W. (Wading River, NY)

    2011-11-22

    A medical gantry that focus the beam from the beginning of the gantry to the exit of the gantry independent of the rotation angle of the gantry by keeping the beam achromatic and uncoupled, thus, avoiding the use of collimators or rotators, or additional equipment to control the beam divergence, which may cause beam intensity loss or additional time in irradiation of the patient, or disadvantageously increase the overall gantry size inapplicable for the use in the medical treatment facility.

  4. Texture evolution during nitinol martensite detwinning and phase transformation

    SciTech Connect (OSTI)

    Cai, S.; Schaffer, J. E.; Ren, Y.

    2013-12-09

    Nitinol has been widely used to make medical devices for years due to its unique shape memory and superelastic properties. However, the texture of the nitinol wires has been largely ignored due to inherent complexity. In this study, in situ synchrotron X-ray diffraction has been carried out during uniaxial tensile testing to investigate the texture evolution of the nitinol wires during martensite detwinning, variant reorientation, and phase transformation. It was found that the thermal martensitic nitinol wire comprised primarily an axial (1{sup ¯}20), (120), and (102)-fiber texture. Detwinning initially converted the (120) and (102) fibers to the (1{sup ¯}20) fiber and progressed to a (1{sup ¯}30)-fiber texture by rigid body rotation. At strains above 10%, the (1{sup ¯}30)-fiber was shifted to the (110) fiber by (21{sup ¯}0) deformation twinning. The austenitic wire exhibited an axial (334)-fiber, which transformed to the near-(1{sup ¯}30) martensite texture after the stress-induced phase transformation.

  5. Generalized Jordan-Wigner Transformations

    SciTech Connect (OSTI)

    Batista, C. D.; Ortiz, G.

    2001-02-05

    We introduce a new spin-fermion mapping, for arbitrary spin S generating the SU(2) group algebra, that constitutes a natural generalization of the Jordan-Wigner transformation for S=1/2. The mapping, valid for regular lattices in any spatial dimension d , serves to unravel hidden symmetries. We illustrate the power of the transformation by finding exact solutions to lattice models previously unsolved by standard techniques. We also show the existence of the Haldane gap in S=1 bilinear nearest-neighbor Heisenberg spin chains and discuss the relevance of the mapping to models of strongly correlated electrons. Moreover, we present a general spin-anyon mapping for the case d{<=}2 .

  6. Generalized Jordan-Wigner Transformations

    E-Print Network [OSTI]

    C. D. Batista; G. Ortiz

    2000-08-25

    We introduce a new spin-fermion mapping, for arbitrary spin $S$ generating the SU(2) group algebra, that constitutes a natural generalization of the Jordan-Wigner transformation for $S=1/2$. The mapping, valid for regular lattices in any spatial dimension $d$, serves to unravel hidden symmetries in one representation that are manifest in the other. We illustrate the power of the transformation by finding exact solutions to lattice models previously unsolved by standard techniques. We also present a proof of the existence of the Haldane gap in $S=$1 bilinear nearest-neighbors Heisenberg spin chains and discuss the relevance of the mapping to models of strongly correlated electrons. Moreover, we present a general spin-anyon mapping for the case $d \\leq 2$.

  7. Video compression of coronary angiograms based on discrete wavelet transform with block classification

    SciTech Connect (OSTI)

    Ho, B.K.T.; Tsai, M.J.; Wei, J.; Ma, M.; Saipetch, P.

    1996-12-01

    A new method of video compression for angiographic images has been developed to achieve high compression ratio ({approximately}20:1) while eliminating block artifacts which leads to loss of diagnostic accuracy. This method adopts motion picture experts group`s (MPEG`s) motion compensated prediction to take advantage of frame to frame correlation. However, in contrast to MPEG, the error images arising from mismatches in the motion estimation are encoded by discrete wavelet transform (DWT) rather than block discrete cosine transform (DCT). Furthermore, the authors developed a classification scheme which label each block in an image as intra, error, or background type and encode it accordingly. This hybrid coding can significantly improve the compression efficiency in certain cases. This method can be generalized for any dynamic image sequences applications sensitive to block artifacts.

  8. Conformal Gauge Transformations in Thermodynamics

    E-Print Network [OSTI]

    A. Bravetti; C. S. Lopez-Monsalvo; F. Nettel

    2015-06-23

    In this work we consider conformal gauge transformations of the geometric structure of thermodynamic fluctuation theory. In particular, we show that the Thermodynamic Phase Space is naturally endowed with a non-integrable connection, defined by all those processes that annihilate the Gibbs 1-form, i.e. reversible processes. Therefore the geometry of reversible processes is invariant under re-scalings, that is, it has a conformal gauge freedom. Interestingly, as a consequence of the non-integrability of the connection, its curvature is not invariant under conformal gauge transformations and, therefore, neither is the associated pseudo-Riemannian geometry. We argue that this is not surprising, since these two objects are associated with irreversible processes. Moreover, we provide the explicit form in which all the elements of the geometric structure of the Thermodynamic Phase Space change under a conformal gauge transformation. As an example, we revisit the change of the thermodynamic representation and consider the resulting change between the two metrics on the Thermodynamic Phase Space which induce Weinhold's energy metric and Ruppeiner's entropy metric. As a by-product we obtain a proof of the well-known conformal relation between Weinhold's and Ruppeiner's metrics along the equilibrium directions. Finally, we find interesting properties of the almost para-contact structure and of its eigenvectors which may be of physical interest.

  9. Counter urban transformation in Istanbul Beyoglu

    E-Print Network [OSTI]

    Uzunyayla, Sakine Dicle

    2014-01-01

    Urban transformation has become central to the Turkish government's neo-liberal program of commercial development for Istanbul. These transformations have provoked public discontent and passionate responses, the largest ...

  10. Modelling of Simultaneous Transformations in Steels

    E-Print Network [OSTI]

    Chen, Jiawen

    The microstructure of a steel is often developed by solid-state transformation from austenite. The major transformation products are allotriomorphic ferrite, pearlite, Widmanstatten ferrite, bainite and martensite, differentiated by morphological...

  11. Inversion of a new circular-arc Radon transform for Compton scattering tomography This article has been downloaded from IOPscience. Please scroll down to see the full text article.

    E-Print Network [OSTI]

    Nguyen-Verger, Maï K.

    Inversion of a new circular-arc Radon transform for Compton scattering tomography This article has:10.1088/0266-5611/26/6/065005 Inversion of a new circular-arc Radon transform for Compton scattering-arc Radon transform arising from the mathematical modeling of image formation in a new modality of Compton

  12. Solar Energy Technologies Program: Market Transformation

    SciTech Connect (OSTI)

    2009-10-26

    Fact sheet summarizing the goals and activities of the DOE Solar Energy Technologies Program efforts within its market transformation subprogram

  13. Tunable fractional-order Fourier transformer

    SciTech Connect (OSTI)

    Malyutin, A A [A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

    2006-01-31

    A fractional two-dimensional Fourier transformer whose orders are tuned by means of optical quadrupoles is described. It is shown that in the optical scheme considered, the Fourier-transform order a element of [0,1] in one of the mutually orthogonal planes corresponds to the transform order (2-a) in another plane, i.e., to inversion and inverse Fourier transform of the order a. (laser modes and beams)

  14. Wedge assembly for electrical transformer component spacing

    DOE Patents [OSTI]

    Baggett, Franklin E. (Paducah, KY); Cage, W. Franklin (LaCenter, KY)

    1991-01-01

    A wedge assembly that is easily inserted between two surfaces to be supported thereby, and thereafter expanded to produce a selected spacing between those surfaces. This wedge assembly has two outer members that are substantially identical except that they are mirror images of each other. Oppositely directed faces of these of these outer members are substantially parallel for the purpose of contacting the surfaces to be separated. The outer faces of these outer members that are directed toward each other are tapered so as to contact a center member having complementary tapers on both faces. A washer member is provided to contact a common end of the outer members, and a bolt member penetrates this washer and is threadably received in a receptor of the center member. As the bolt member is threaded into the center member, the center member is drawn further into the gap between the outer members and thereby separates these outer members to contact the surfaces to be separated. In the preferred embodiment, the contacting surfaces of the outer member and the center member are provided with guide elements. The wedge assembly is described for use in separating the secondary windings from the laminations of an electrical power transformer.

  15. Single beam Fourier transform digital holographic quantitative phase microscopy

    SciTech Connect (OSTI)

    Anand, A. Chhaniwal, V. K.; Mahajan, S.; Trivedi, V.; Faridian, A.; Pedrini, G.; Osten, W.; Dubey, S. K.; Javidi, B.

    2014-03-10

    Quantitative phase contrast microscopy reveals thickness or height information of a biological or technical micro-object under investigation. The information obtained from this process provides a means to study their dynamics. Digital holographic (DH) microscopy is one of the most used, state of the art single-shot quantitative techniques for three dimensional imaging of living cells. Conventional off axis DH microscopy directly provides phase contrast images of the objects. However, this process requires two separate beams and their ratio adjustment for high contrast interference fringes. Also the use of two separate beams may make the system more vulnerable to vibrations. Single beam techniques can overcome these hurdles while remaining compact as well. Here, we describe the development of a single beam DH microscope providing whole field imaging of micro-objects. A hologram of the magnified object projected on to a diffuser co-located with a pinhole is recorded with the use of a commercially available diode laser and an arrayed sensor. A Fourier transform of the recorded hologram directly yields the complex amplitude at the image plane. The method proposed was investigated using various phase objects. It was also used to image the dynamics of human red blood cells in which sub-micrometer level thickness variation were measurable.

  16. Gravity Transform for Input Conditioning in

    E-Print Network [OSTI]

    Paiva, António R. C.

    Gravity Transform for Input Conditioning in Brain Machine Interfaces António R. C. Paiva, José C. Motivation 2. Methods i. Gravity Transform ii. Modeling and output sensitivity analysis 3. Data Analysis #12;3 Outline 1. Motivation 2. Methods i. Gravity Transform ii. Modeling and output sensitivity analysis 3. Data

  17. Fourier transform channeled spectropolarimetry in the MWIR

    E-Print Network [OSTI]

    Dereniak, Eustace L.

    Fourier transform channeled spectropolarimetry in the MWIR Michael W. Kudenov,1 Nathan A. Hagen, 1 Abstract: A complete Fourier Transform Spectropolarimeter in the MWIR is demonstrated. The channeled and links 1. P. Griffiths and J. D. Haseth, "Fourier Transform Infrared Spectrometry," (John Wiley & Sons

  18. The Fourier Transform -A Primer Hagit Shatkay

    E-Print Network [OSTI]

    Learned, John

    The Fourier Transform - A Primer Hagit Shatkay Department of Computer Science Brown University Providence, Rhode Island 02912 CS-95-37 November 1995 #12;#12;The Fourier Transform { A Primer Hagit Shatkay Department of Computer Science Brown University Providence, RI 02912 1 Introduction The Fourier transform

  19. Quantum arithmetic with the Quantum Fourier Transform

    E-Print Network [OSTI]

    Lidia Ruiz-Perez; Juan Carlos Garcia-Escartin

    2014-11-21

    The Quantum Fourier Transform offers an interesting way to perform arithmetic operations on a quantum computer. We review existing Quantum Fourier Transform adders and multipliers and propose some modifications that extend their capabilities. Among the new circuits, we propose a quantum method to compute the weighted average of a series of inputs in the transform domain.

  20. Transformation texture of allotriomorphic ferrite in steel

    E-Print Network [OSTI]

    Cambridge, University of

    Transformation texture of allotriomorphic ferrite in steel D. W. Kim1 , R. S. Qin1 and H. K. D. H into martensite or bainite are well established because the process by which the parent lattice is transformed within the austenite before its transformation. Keywords: Allotriomorphic ferrite, Steel, Texture, Dual

  1. Data-centric Transformations for Locality Enhancement

    E-Print Network [OSTI]

    Pingali, Keshav K.

    -centric transformations for locality enhancement. We present experimental results on the SGI Octane compar- ingData-centric Transformations for Locality Enhancement Induprakas Kodukula Keshav Pingali September community has developed locality-enhancing program transformations such as loop permutation and tiling

  2. Inversion of the attenuated Radon transform

    E-Print Network [OSTI]

    Münster, Westfälische Wilhelms-Universität

    Inversion of the attenuated Radon transform F. Natterer Institut fur Numerische und instrumentelle@math.uni-muenster.de Abstract We derive an exact inversion formula for the attenuated Radon transform. The formula is closely for x 2 IR2, #12; 2 S1 Dax; #12; = 1Z 0 ax + t#12;dt : 1.1 The attenuated Radon transform Ra is de ned

  3. Nonlinear Radon and Fourier Transforms Franois Rouvire

    E-Print Network [OSTI]

    Vallette, Bruno

    Nonlinear Radon and Fourier Transforms François Rouvière Université de Nice Laboratoire Dieudonné, of the clas- sical Radon transform on hyperplanes. A function f on Rn can be reconstructed from nonlinear Radon transforms, obtained by integrating f and a ...nite num- ber of multiples x f over a family

  4. Injectivity of Rotation Invariant Windowed Radon Transforms

    E-Print Network [OSTI]

    Biermé, Hermine

    Injectivity of Rotation Invariant Windowed Radon Transforms Hermine Bierm´e MAPMO-UMR 6628, D rotation invariant windowed Radon transforms that integrate a func- tion over hyperplanes by using a radial with positive real part , the windowed Radon transform is not injective on functions with a Gaussian decay

  5. Multilinear generalized Radon transforms and point configurations

    E-Print Network [OSTI]

    Grafakos, Loukas

    Multilinear generalized Radon transforms and point configurations Loukas Grafakos, Allan Greenleaf, Alex Iosevich and Eyvindur Palsson Abstract. We study multilinear generalized Radon transforms using for the results in [7]. 1. Introduction Linear generalized Radon transforms are operators of the form (1.1) Rf

  6. Mechanisms of cellular transformation by carcinogenic agents

    SciTech Connect (OSTI)

    Grunberger, D.; Goff, S.P.

    1987-01-01

    This book contains 14 chapters. Some of the chapter titles are: DNA Modification by Chemical Carcinogens; Role of DNA Lesions and Repair in the Transformation of Human Cells; The Induction and Regulation of Radiogenic Transformation In Vitro: Cellular and Molecular Mechanisms; Cellular Transformation by Adenoviruses; and The fos Gene.

  7. M, N -Adhesive Transformation Systems (Long Version)

    E-Print Network [OSTI]

    Habel, Annegret

    M, N -Adhesive Transformation Systems (Long Version) Annegret Habel1 and Detlef Plump2 1 Carl von.plump@york.ac.uk Draft: October 1, 2012 Abstract. The categorical framework of M-adhesive transformation systems does with graphs, however, and are commonly used in graph transformation languages. In this paper, we generalise M-adhesive

  8. Transforming and Refining Abstract Constraint Specifications

    E-Print Network [OSTI]

    Walsh, Toby

    Transforming and Refining Abstract Constraint Specifications Alan M. Frisch1 , Brahim Hnich2 , Ian choose model transformations to reduce greatly the amount of effort that is required to solve a problem by systematic search. It is a consid- erable challenge to automate such transformations. A problem may be viewed

  9. A Computational Theory of Enterprise Transformation

    E-Print Network [OSTI]

    Serban, Nicoleta

    approach to enterprise transformation was to turn IBM into a market- driven rather than internally focusedA Computational Theory of Enterprise Transformation Zhongyuan Yu, William B. Rouse,* and Nicoleta THEORY OF ENTERPRISE TRANSFORMATION Received 13 August 2010; Revised 20 December 2010; Accepted 20

  10. A programmable Fresnel transform pulse shaper

    E-Print Network [OSTI]

    Purdue University

    A programmable Fresnel transform pulse shaper G. M´inguez-Vega1, J.D. McKinney2 and A.M. Weiner2 1@purdue.edu Abstract: We demonstrate the first reprogrammable Fresnel transform pulse shaper based on a modified direct a free-space Fresnel transform which causes quadratic dispersion of the output temporal waveform. When

  11. Imaging algorithms in radio interferometry

    E-Print Network [OSTI]

    R. J. Sault; T. A. Oosterloo

    2007-01-08

    The paper reviews progress in imaging in radio interferometry for the period 1993-1996. Unlike an optical telescope, the basic measurements of a radio interferometer (correlations between antennas) are indirectly related to a sky brightness image. In a real sense, algorithms and computers are the lenses of a radio interferometer. In the last 20 years, whereas interferometer hardware advances have resulted in improvements of a factor of a few, algorithm and computer advances have resulted in orders of magnitude improvement in image quality. Developing these algorithms has been a fruitful and comparatively inexpensive method of improving the performance of existing telescopes, and has made some newer telescopes possible. In this paper, we review recent developments in the algorithms used in the imaging part of the reduction process. What constitutes an `imaging algorithm'? Whereas once there was a steady `forward' progression in the reduction process of editing, calibrating, transforming and, finally, deconvolving, this is no longer true. The introduction of techniques such as self-calibration, and algorithms that go directly from visibilities to final images, have made the dividing lines less clear. Although we briefly consider self-calibration, for the purposes of this paper calibration issues are generally excluded. Most attention will be directed to the steps which form final images from the calibrated visibilities.

  12. Towards Sustainable Communities: Transitions and Transformations in Environmental Policy

    E-Print Network [OSTI]

    Ghosh, Kaustuv

    2010-01-01

    Transformations in Environmental Policy Daniel A. MazmanianTransformations in Environmental Policy (2 ed). Cambridge,Transformation in Environmental Policy is the second edition

  13. A Superconducting transformer system for high current cable testing

    E-Print Network [OSTI]

    Godeke, A.

    2010-01-01

    A Superconducting Transformer System for High Current CableDC) superconducting transformer system for the high currentsuperconducting cables. The transformer consists of a core-

  14. Cauchy transforms of measures viewed as some functionals of Fourier transforms #

    E-Print Network [OSTI]

    Jurek, Zbigniew J.

    Cauchy transforms of measures viewed as some functionals of Fourier transforms # Zbigniew J. Jurek Urbanik ABSTRACT. The Cauchy transform of a positive measure plays an impor­ tant role in complex analysis and more recently in so­called free probability. We show here that the Cauchy transform restricted

  15. Cauchy transforms of measures viewed as some functionals of Fourier transforms

    E-Print Network [OSTI]

    Jurek, Zbigniew J.

    Cauchy transforms of measures viewed as some functionals of Fourier transforms Zbigniew J. Jurek Urbanik ABSTRACT. The Cauchy transform of a positive measure plays an impor- tant role in complex analysis and more recently in so-called free probability. We show here that the Cauchy transform restricted

  16. Computing Instantaneous Frequency by normalizing Hilbert Transform

    DOE Patents [OSTI]

    Huang, Norden E.

    2005-05-31

    This invention presents Normalized Amplitude Hilbert Transform (NAHT) and Normalized Hilbert Transform(NHT), both of which are new methods for computing Instantaneous Frequency. This method is designed specifically to circumvent the limitation set by the Bedorsian and Nuttal Theorems, and to provide a sharp local measure of error when the quadrature and the Hilbert Transform do not agree. Motivation for this method is that straightforward application of the Hilbert Transform followed by taking the derivative of the phase-angle as the Instantaneous Frequency (IF) leads to a common mistake made up to this date. In order to make the Hilbert Transform method work, the data has to obey certain restrictions.

  17. Generalized transformation optics from triple spacetime metamaterials

    E-Print Network [OSTI]

    L. Bergamin

    2008-10-27

    In this paper various extensions of the design strategy of transformation media are proposed. We show that it is possible to assign different transformed spaces to the field strength tensor (electric field and magnetic induction) and to the excitation tensor (displacement field and magnetic field), resp. In this way, several limitations of standard transformation media can be overcome. In particular it is possible to provide a geometric interpretation of non-reciprocal as well as indefinite materials. We show that these transformations can be complemented by a continuous version of electric-magnetic duality and comment on the relation to the complementary approach of field-transforming metamaterials.

  18. Transform Solar | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al., 2013)OpenEnergyTrail Canyon Geothermal Project JumpTechTransform

  19. Fourier Transform Quantum State Tomography

    E-Print Network [OSTI]

    Mohammadreza Mohammadi; Agata M. Branczyk; Daniel F. V. James

    2013-01-17

    We propose a technique for performing quantum state tomography of photonic polarization-encoded multi-qubit states. Our method uses a single rotating wave plate, a polarizing beam splitter and two photon-counting detectors per photon mode. As the wave plate rotates, the photon counters measure a pseudo-continuous signal which is then Fourier transformed. The density matrix of the state is reconstructed using the relationship between the Fourier coefficients of the signal and the Stokes' parameters that represent the state. The experimental complexity, i.e. different wave plate rotation frequencies, scales linearly with the number of qubits.

  20. Transformation: emergence of the self 

    E-Print Network [OSTI]

    Stein, Murray

    1998-01-01

    with Verena Kast. They must have fallen on fertile soil, because they continued to grow in my mind until I was offered the opportunity to present the Carolyn and Ernest Fay Lectures for 1997. By that time, I knew that transformation would be my theme. In a... sense, this book is an extension of my earlier work, In MidLife, published some fifteen years ago. Also, it offers a theoretical base for my more recent book, Practicing Wholeness. While teaching at the Jung Institute of Chicago and lecturing...

  1. Transformational Manufacturing | Argonne National 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired Solar FuelTechnologyTel:FebruaryEIA'sTrainingActivityTransformational

  2. Ultrafast Transformations in Superionic Nanocrystals

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With WIPPfinal designUltrafast Transformations in Superionic

  3. Ultrafast Transformations in Superionic Nanocrystals

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With WIPPfinal designUltrafast Transformations in SuperionicUltrafast

  4. Photogrammetry & Machine Vision 1. Image sensors

    E-Print Network [OSTI]

    Giger, Christine

    model by using additional parameters (APs) Consider transformation between metric and digital spaces -> digital Lens distortion #12;Geometric camera model 1 Object space: O-XYZ Projective center: O' Image matrix Oxyz -> O'x'y'z' : #12;Geometric camera model 5 Digital photogrammetry: Refinement of the camera

  5. DOE Center of Excellence in Medical Laser Applications. Final report, December 1, 1994--November 30, 1997

    SciTech Connect (OSTI)

    Jacques, S.L.

    1998-01-01

    An engineering network of collaborating medical laser laboratories are developing laser and optical technologies for medical diagnosis and therapy and are translating the engineering into medical centers in Portland OR, Houston TX, and Galveston TX. The Center includes the University of Texas M.D. Anderson Cancer Center, the University of Texas-Austin, Texas A and M University, Rice University, the University Texas Medical Branch-Galveston, Oregon Medical Laser Center (Providence St. Vincent Medical Center, Oregon Health Sciences University, and Oregon Graduate Institute, Portland, OR), and the University of Oregon. Diagnostics include reflectance, fluorescence, Raman IR, laser photoacoustics, optical coherence tomography, and several new video techniques for spectroscopy and imaging. Therapies include photocoagulation therapy, laser welding, pulsed laser ablation, and light-activated chemotherapy of cancer (photodynamic therapy, or PDT). Medical applications reaching the clinic include optical monitoring of hyperbilirubinemia in newborns, fluorescence detection of cervical dysplasia, laser thrombolysis of blood clots in heart attack and brain stroke, photothermal coagulant of benign prostate hyperplasia, and PDT for both veterinary and human cancer. New technologies include laser optoacoustic imaging of breast tumors and hemorrhage in head trauma and brain stroke, quality control monitoring of dosimetry during PDT for esophageal and lung cancer, polarization video reflectometry of skin cancer, laser welding of artificial tissue replacements, and feedback control of laser welding.

  6. (09)UC/05 BSc(Hons) Medical Physics/11 Bachelor of Science (Honours) Medical Physics

    E-Print Network [OSTI]

    Hickman, Mark

    (09)UC/05 ­ BSc(Hons) Medical Physics/11 Bachelor of Science (Honours) Medical Physics 2005 Calendar, pages 348 and 681 (09)UC/05 ­ BSc(Hons) Medical Physics/1 Section A 1. Purpose of proposal To provide a better pathway for PhD students in Medical Physics, a BSc(Hons) degree in Medical Physics

  7. In vitro whole-organ imaging: 4D quantification

    E-Print Network [OSTI]

    Cai, Long

    Dissecting dish Imaging chamber Oil Medium Perfluorodecalin 50 40 30 20 10 1.40 Relativegrowth into the imaging chamber: perfluorodecalin to supply oxygen, medium and mineral oil to prevent evaporation. (b MAY 2008; PUBLISHED ONLINE 30 MAY 2008; DOI:10.1038/NMETH.1219 1Medical Research Council (MRC) Human

  8. "Reconstructing high quality images using models and algorithms."

    E-Print Network [OSTI]

    Zhigilei, Leonid V.

    "Reconstructing high quality images using models and algorithms." Daniel S. Weller Assistant Theory and Algorithms Laboratory Increasing quality and resolution requirements in scientific and medical cost. Both trends drive the development of novel signal and image processing algorithms that are faster

  9. Nanomedicine (Lond) . Author manuscript Cancer optical imaging using fluorescent nanoparticles

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ; medical imaging ; near-infrared ; photoacoustic ; phototherapy Developing imaging technologies in the drug development process very early in the laboratory, during the translation phase from in vitro to the acquisition of molecular information including Positron Emission Tomography (PET), Single photon emission

  10. Scanners and drillers: Characterizing expert visual search through volumetric images

    E-Print Network [OSTI]

    Scanners and drillers: Characterizing expert visual search through volumetric images Trafton Drew in 2-D, relatively little is known about search in volumetric space. In recent years, with the ever-increasing popularity of volumetric medical imaging, this question has taken on increased importance as we try

  11. Inversion of the circular Radon transform on an Gaik Ambartsoumian1

    E-Print Network [OSTI]

    Ambartsoumian, Gaik

    briefly described below. RF pulse transducer Thermoacoustic tomography r=ct Figure 1. A sketch of TAT/PAT Thermoacoustic (TAT) and photoacoustic (PAT) tomography are two emerging medical imaging modalities, which in the body, heating up the tissue, and causing thermal expansion, which in its turn generates acoustic waves

  12. Temperature-and electric-field-dependent domain structures and phase transformations in ,,001...-cut tetragonal

    E-Print Network [OSTI]

    applications in medical imaging, actua- tors, sonar, and accelerometers. The exceptional piezoelectric piezoelectric coeffi- cient d33 2500 pC/N , a large strain level up to 1.7% , and low hysteresis.1 Such high piezoelectric performance, which converts mechanical and electric energies, gives ex- tremely promising

  13. 2015 Advanced Imaging Application 1. BIOGRAPHICAL INFORMATION

    E-Print Network [OSTI]

    Barrash, Warren

    to the selection committee. 8. TECHNICAL STANDARDS Read the following statements identifying the TECHNICAL stressful situations related to technical and procedural standards and patient care situations; 2. Providing STANDARDS appropriate to medical imaging and answer the inquiry provided below. The technologist

  14. SU-E-J-237: Image Feature Based DRR and Portal Image Registration

    SciTech Connect (OSTI)

    Wang, X; Chang, J [NY Weill Cornell Medical Ctr, NY (United States)

    2014-06-01

    Purpose: Two-dimensional (2D) matching of the kV X-ray and digitally reconstructed radiography (DRR) images is an important setup technique for image-guided radiotherapy (IGRT). In our clinics, mutual information based methods are used for this purpose on commercial linear accelerators, but with often needs for manual corrections. This work proved the feasibility that feature based image transform can be used to register kV and DRR images. Methods: The scale invariant feature transform (SIFT) method was implemented to detect the matching image details (or key points) between the kV and DRR images. These key points represent high image intensity gradients, and thus the scale invariant features. Due to the poor image contrast from our kV image, direct application of the SIFT method yielded many detection errors. To assist the finding of key points, the center coordinates of the kV and DRR images were read from the DICOM header, and the two groups of key points with similar relative positions to their corresponding centers were paired up. Using these points, a rigid transform (with scaling, horizontal and vertical shifts) was estimated. We also artificially introduced vertical and horizontal shifts to test the accuracy of our registration method on anterior-posterior (AP) and lateral pelvic images. Results: The results provided a satisfactory overlay of the transformed kV onto the DRR image. The introduced vs. detected shifts were fit into a linear regression. In the AP image experiments, linear regression analysis showed a slope of 1.15 and 0.98 with an R2 of 0.89 and 0.99 for the horizontal and vertical shifts, respectively. The results are 1.2 and 1.3 with R2 of 0.72 and 0.82 for the lateral image shifts. Conclusion: This work provided an alternative technique for kV to DRR alignment. Further improvements in the estimation accuracy and image contrast tolerance are underway.

  15. Fourier Magnetic Imaging with Nanoscale Resolution and Compressed Sensing Speed-up using Electronic Spins in Diamond

    E-Print Network [OSTI]

    Walsworth, Ronald L.

    1 Fourier Magnetic Imaging with Nanoscale Resolution and Compressed Sensing Speed-up using imaging.12 Here we introduce an alternative technique of Fourier magnetic imaging using NV Fourier transform to yield real-space images with nanoscale resolution, wide field-of-view (FOV

  16. LOCAL FOURIER TRANSFORMS AND RIGIDITY FOR D-MODULES

    E-Print Network [OSTI]

    Bloch, Spencer

    LOCAL FOURIER TRANSFORMS AND RIGIDITY FOR D. Local Fourier transforms, analogous to the `-adic local Fourier transforms [14], are constructed infinitesimal rigidity condition is satisfied. As in [12], the argument uses local Fourier transforms

  17. Transformation induced plasticity assisted steels: stress or strain affected martensitic

    E-Print Network [OSTI]

    Cambridge, University of

    Transformation induced plasticity assisted steels: stress or strain affected martensitic induced martensitic transformation of the retained austenite in TRIP assisted steels. The authors begin transformation? S. Chatterjee and H. K. D. H. Bhadeshia* Transformation induced plasticity (TRIP) assisted steels

  18. A Transformational View of Cartography W. R. Tobler

    E-Print Network [OSTI]

    Clarke, Keith

    A Transformational View of Cartography W. R. Tobler ABSTRACT. Cartographic transformations aliases are between points, lines, and areas. Substantive transformations occur in map interpolation transformational grammars, as originally devised for linguistics.2, 4 A similar, though less ambitious, attempt

  19. Biotechnology SchoolofMedicalSciences

    E-Print Network [OSTI]

    Neri, Peter

    BSc (Hons) Biotechnology Degree Programme Guide 2014-15 SchoolofMedicalSciences #12;BSc (Hons solutions to complex problems such as the manufacture of bio- fuels and palm-oil substitutes. Biotechnology in agriculture and management of the environment (e.g. oil spill clean-up) is immense but at present only partly

  20. Medical Student For Students Matriculating

    E-Print Network [OSTI]

    Chapman, Michael S.

    MAXILLOFACIAL SURGERY PROGRAM CURRICULUM STRUCTURE 67 STUDENT STANDARDS AND OTHER POLICIES 69 OHSU TECHNICAL STANDARDS 69 SCHOOL OF MEDICINE MD PROGRAM TECHNICAL STANDARDS 70 OHSU CODE OF CONDUCT 70 PROFESSIONAL APPEARANCE AND DRESS 72 STANDARDS OF ELECTRONIC INFORMATION CONDUCT 73 SOCIAL MEDIA GUIDELINES FOR MEDICAL

  1. Medical Technology for Superior Patient

    E-Print Network [OSTI]

    Hayden, Nancy J.

    of electromagnetic interference, hazardous vapors, electrical power, and acoustic noise · Medical device integration organizations focus on providing the highest quality of patient care, while supporting them in their never and repair services on all general biomedical equipment and a variety of specialized systems. However, we go

  2. Energy Technology Solutions: Public-Private Partnerships Transforming...

    Energy Savers [EERE]

    Energy Technology Solutions: Public-Private Partnerships Transforming Industry, November 2010 Energy Technology Solutions: Public-Private Partnerships Transforming Industry,...

  3. NEMA Distribution Transformers, CCE Overview and Update presentation...

    Office of Environmental Management (EM)

    Distribution Transformers, CCE Overview and Update presentation, dated 05242011 NEMA Distribution Transformers, CCE Overview and Update presentation, dated 05242011 This...

  4. The Fourier Transform on Quantum Euclidean Space

    E-Print Network [OSTI]

    Kevin Coulembier

    2011-05-11

    We study Fourier theory on quantum Euclidean space. A modified version of the general definition of the Fourier transform on a quantum space is used and its inverse is constructed. The Fourier transforms can be defined by their Bochner's relations and a new type of q-Hankel transforms using the first and second q-Bessel functions. The behavior of the Fourier transforms with respect to partial derivatives and multiplication with variables is studied. The Fourier transform acts between the two representation spaces for the harmonic oscillator on quantum Euclidean space. By using this property it is possible to define a Fourier transform on the entire Hilbert space of the harmonic oscillator, which is its own inverse and satisfies the Parseval theorem.

  5. Discrimination of Unitary Transformations and Quantum Algorithms

    E-Print Network [OSTI]

    David Collins

    2008-11-09

    Quantum algorithms are typically understood in terms of the evolution of a multi-qubit quantum system under a prescribed sequence of unitary transformations. The input to the algorithm prescribes some of the unitary transformations in the sequence with others remaining fixed. For oracle query algorithms, the input determines the oracle unitary transformation. Such algorithms can be regarded as devices for discriminating amongst a set of unitary transformations. The question arises: "Given a set of known oracle unitary transformations, to what extent is it possible to discriminate amongst them?" We investigate this for the Deutsch-Jozsa problem. The task of discriminating amongst the admissible oracle unitary transformations results in an exhaustive collection of algorithms which can solve the problem with certainty.

  6. Medical implants and methods of making medical implants

    SciTech Connect (OSTI)

    Shaw, Wendy J; Yonker, Clement R; Fulton, John L; Tarasevich, Barbara J; McClain, James B; Taylor, Doug

    2014-09-16

    A medical implant device having a substrate with an oxidized surface and a silane derivative coating covalently bonded to the oxidized surface. A bioactive agent is covalently bonded to the silane derivative coating. An implantable stent device including a stent core having an oxidized surface with a layer of silane derivative covalently bonded thereto. A spacer layer comprising polyethylene glycol (PEG) is covalently bonded to the layer of silane derivative and a protein is covalently bonded to the PEG. A method of making a medical implant device including providing a substrate having a surface, oxidizing the surface and reacting with derivitized silane to form a silane coating covalently bonded to the surface. A bioactive agent is then covalently bonded to the silane coating. In particular instances, an additional coating of bio-absorbable polymer and/or pharmaceutical agent is deposited over the bioactive agent.

  7. Innovations in Undergraduate Medical Education: A Novel Elective for Third Year Medical Students, Emergency Critical Care

    E-Print Network [OSTI]

    Leuthauser, A.

    2015-01-01

    for Graduate Medical Education (ACGME) allows twenty percentUndergraduate Medical Education: A Novel Elective for Thirdthat void became obvious. Education Objectives: To expose

  8. Quantum Energy Regression using Scattering Transforms

    E-Print Network [OSTI]

    Matthew Hirn; Nicolas Poilvert; Stephane Mallat

    2015-02-06

    We present a novel approach to the regression of quantum mechanical energies based on a scattering transform of an intermediate electron density representation. A scattering transform is a deep convolution network computed with a cascade of multiscale wavelet transforms. It possesses appropriate invariant and stability properties for quantum energy regression. This new framework removes fundamental limitations of Coulomb matrix based energy regressions, and numerical experiments give state-of-the-art accuracy over planar molecules.

  9. Quantum Energy Regression using Scattering Transforms

    E-Print Network [OSTI]

    Hirn, Matthew; Mallat, Stephane

    2015-01-01

    We present a novel approach to the regression of quantum mechanical energies based on a scattering transform of an intermediate electron density representation. A scattering transform is a deep convolution network computed with a cascade of multiscale wavelet transforms. It possesses appropriate invariant and stability properties for quantum energy regression. This new framework removes fundamental limitations of Coulomb matrix based energy regressions, and numerical experiments give state-of-the-art accuracy over planar molecules.

  10. Non-Hermitian Hamiltonians and similarity transformations

    E-Print Network [OSTI]

    Francisco M. Fernández

    2015-03-06

    We show that similarity (or equivalent) transformations enable one to construct non-Hermitian operators with real spectrum. In this way we can also prove and generalize the results obtained by other authors by means of a gauge-like transformation and its generalization. Such similarity transformations also reveal the connection with pseudo-Hermiticity in a simple and straightforward way. In addition to it we consider the positive and negative eigenvalues of a three-parameter non-Hermitian oscillator.

  11. Disformal transformation in Newton-Cartan geometry

    E-Print Network [OSTI]

    Huang, Peng

    2015-01-01

    Newton-Cartan geometry has played a central role in recent discussions of non-relativistic holography and condensed matter systems. Although the conformal transformation in non-relativistic holography can be easily rephrased in Newton-Cartan geometry, we show that it requires a nontrivial procedure to get the consistent form of anisotropic disformal transformation in this geometry. Furthermore, as an application of the newly obtained disformal transformation, we use it to induce a new geometry.

  12. Disformal transformation in Newton-Cartan geometry

    E-Print Network [OSTI]

    Peng Huang; Fang-Fang Yuan

    2015-09-20

    Newton-Cartan geometry has played a central role in recent discussions of non-relativistic holography and condensed matter systems. Although the conformal transformation in non-relativistic holography can be easily rephrased in Newton-Cartan geometry, we show that it requires a nontrivial procedure to get the consistent form of anisotropic disformal transformation in this geometry. Furthermore, as an application of the newly obtained disformal transformation, we use it to induce a new geometry.

  13. One-way transformation of information

    DOE Patents [OSTI]

    Cooper, James A. (Albuquerque, NM)

    1989-01-01

    Method and apparatus are provided for one-way transformation of data according to multiplication and/or exponentiation modulo a prime number. An implementation of the invention permits the one way residue transformation, useful in encryption and similar applications, to be implemented by n-bit computers substantially with no increase in difficulty or complexity over a natural transformation thereby, using a modulus which is a power of two.

  14. ROBUST REAL-TIME EGOMOTION FROM STEREO IMAGES Louis-Philippe Morency

    E-Print Network [OSTI]

    Darrell, Trevor

    constraint. As shown in Figure 1, both registration techniques share the same iterative frame- workROBUST REAL-TIME EGOMOTION FROM STEREO IMAGES Louis-Philippe Morency Artificial Intelligence camera displacement using stereo images. The rela- tive transformation between two stereo image pairs

  15. High-tech buildings - Market transformation project

    E-Print Network [OSTI]

    Applications Team

    2001-01-01

    Energy Benchmarking in High-Tech and Biotech Industries,”Recommendations for future high-tech facilities energyLBNL. Task Three-High-Tech Buildings Market Transformation

  16. Wavelet transform techniques and signal analysis

    SciTech Connect (OSTI)

    Perez, R.B.; Mattingly, J.K. Tennessee Univ., Knoxville, TN . Dept. of Nuclear Engineering); Perez, J.S. . Facultad de Informatica)

    1993-01-01

    Traditionally, the most widely used signal analysis tool is the Fourier transform which, by producing power spectral densities (PSDs), allows time dependent signals to be studied in the frequency domain. However, the Fourier transform is global -- it extends over the entire time domain -- which makes it ill-suited to study nonstationary signals which exhibit local temporal changes in the signal's frequency content. To analyze nonstationary signals, the family of transforms commonly designated as short-time Fourier transforms (STFTs), capable of identifying temporally localized changes in the signal's frequency content, were developed by employing window functions to isolate temporal regions of the signal. For example, the Gabor STFT uses a Gaussian window. However, the applicability of STFTs is limited by various inadequacies. The Wavelet transform (NW), recently developed by Grossman and Morlet and explored in depth by Daubechies (2) and Mallat, remedies the inadequacies of STFTs. Like the Fourier transform, the WT can be implemented as a discrete transform (DWT) or as a continuous (integral) transform (CWT). This paper briefly illustrates some of the potential applications of the wavelet transform algorithms to signal analysis.

  17. Wavelet transform techniques and signal analysis

    SciTech Connect (OSTI)

    Perez, R.B.; Mattingly, J.K. |; Perez, J.S.

    1993-03-01

    Traditionally, the most widely used signal analysis tool is the Fourier transform which, by producing power spectral densities (PSDs), allows time dependent signals to be studied in the frequency domain. However, the Fourier transform is global -- it extends over the entire time domain -- which makes it ill-suited to study nonstationary signals which exhibit local temporal changes in the signal`s frequency content. To analyze nonstationary signals, the family of transforms commonly designated as short-time Fourier transforms (STFTs), capable of identifying temporally localized changes in the signal`s frequency content, were developed by employing window functions to isolate temporal regions of the signal. For example, the Gabor STFT uses a Gaussian window. However, the applicability of STFTs is limited by various inadequacies. The Wavelet transform (NW), recently developed by Grossman and Morlet and explored in depth by Daubechies (2) and Mallat, remedies the inadequacies of STFTs. Like the Fourier transform, the WT can be implemented as a discrete transform (DWT) or as a continuous (integral) transform (CWT). This paper briefly illustrates some of the potential applications of the wavelet transform algorithms to signal analysis.

  18. The Lorentz Integral Transform and its Inversion

    E-Print Network [OSTI]

    N. Barnea; V. D. Efros; W. Leidemann; G. Orlandini

    2009-12-23

    The Lorentz integral transform method is briefly reviewed. The issue of the inversion of the transform, and in particular its ill-posedness, is addressed. It is pointed out that the mathematical term ill-posed is misleading and merely due to a historical misconception. In this connection standard regularization procedures for the solution of the integral transform problem are presented. In particular a recent one is considered in detail and critical comments on it are provided. In addition a general remark concerning the concept of the Lorentz integral transform as a method with a controlled resolution is made.

  19. Transformers: The Levers and Gears of Electricity

    Broader source: Energy.gov [DOE]

    This video is a great resource for teachers, demonstrating how transformers work. It includes experiments and demos that can be shared with students.

  20. ENERGY DIVISION STATUS OF SUPERCONDUCTING POWER TRANSFORMER

    Office of Scientific and Technical Information (OSTI)

    Momvm, evert the very limited losses of existing transfmers represent a significant cost over the expected life of the transformer. The desire to reduce these losses in...

  1. An index 2F2 hypergeometric transform

    E-Print Network [OSTI]

    Zouhair Mouayn

    2011-05-12

    We construct a new one-parameter family of index hypergeometric transforms associated with the relativistic pseudoharmonic oscillator by using coherent states analysis.

  2. Biomedical nuclear and X-ray imager using high-energy grazing incidence mirrors

    DOE Patents [OSTI]

    Ziock, Klaus-Peter; Craig, William W.; Hasegawa, Bruce; Pivovaroff, Michael J.

    2005-09-27

    Imaging of radiation sources located in a subject is explored for medical applications. The approach involves using grazing-incidence optics to form images of the location of radiopharmaceuticals administered to a subject. The optics are "true focusing" optics, meaning that they project a real and inverted image of the radiation source onto a detector possessing spatial and energy resolution.

  3. Two-dimensional imaging of continuous-wave terahertz radiation using electro-optic detection

    E-Print Network [OSTI]

    Heinz, Tony F.

    image the two-dimensional properties of a THz beam focused into a 110 ZnTe electro-optic detection- though x-ray imaging has found significant application in medical diagnostics. As one moves further as a function of the spatial posi- tion of the beam. In order to create an image, one then mea- sures

  4. Dictionary Learning-based Volumetric Image Classification for The Diagnosis of Age-related

    E-Print Network [OSTI]

    Coenen, Frans

    -based approach to supporting the classification of 3D Optical Coherence Tomography (OCT) retinal images, so, Spatial gradient his- tograms, diactioanry learning, Medical image processing, Optical Coher- ence of retinal imagery. Traditionally this is conducted using 2-dimensional (2D) colour fundus images

  5. Exploiting thesauri knowledge in medical guideline formalization

    E-Print Network [OSTI]

    ten Teije, Annette

    investigates whether medical knowledge acquired from several medical thesauri can be molded on a guideline program, under contract number IST-FP6- 508794 Protocure-II: www.protocure.org 2 Address: De Boelelaan

  6. Professional Science Master in Medical Physics (PSMMP)

    E-Print Network [OSTI]

    Fernandez, Eduardo

    Professional Science Master in Medical Physics (PSMMP) CAMPEP Accredited Department of Physics Florida atlantic University #12;T he Department of Physics offers the Professional Science Master in Medical Physics (PSMMP) degree --an interdisciplinary, innovative education program that develops advanced

  7. Synchrotron radiation imaging is a powerful tool to image brain microvasculature

    SciTech Connect (OSTI)

    Zhang, Mengqi; Sun, Danni; Xie, Yuanyuan; Xia, Jian; Long, Hongyu; Hu, Kai; Xiao, Bo; Peng, Guanyun

    2014-03-15

    Synchrotron radiation (SR) imaging is a powerful experimental tool for micrometer-scale imaging of microcirculation in vivo. This review discusses recent methodological advances and findings from morphological investigations of cerebral vascular networks during several neurovascular pathologies. In particular, it describes recent developments in SR microangiography for real-time assessment of the brain microvasculature under various pathological conditions in small animal models. It also covers studies that employed SR-based phase-contrast imaging to acquire 3D brain images and provide detailed maps of brain vasculature. In addition, a brief introduction of SR technology and current limitations of SR sources are described in this review. In the near future, SR imaging could transform into a common and informative imaging modality to resolve subtle details of cerebrovascular function.

  8. Medical Surveillance for Former Workers

    SciTech Connect (OSTI)

    Tim Takaro

    2009-05-29

    The Former Hanford Worker Medical Monitoring Program, directed by the Occupational and Environmental Medicine Program at the University of Washington, served former production and other non-construction workers who were potentially exposed to workplace hazards while working for the USDOE or its contractors at Hanford. The USDOE Former Workers Program arose from Congressional action in the Defense Authorization of 1993 (Public Law 102). Section 3162 stated that, “The Secretary shall establish and carry out a program for the identification and ongoing medical evaluation of current and former Department of Energy employees who are subject to significant health risks as a result of exposure of such employees to hazardous or radioactive substances during such employment.” (This also covers former employees of USDOE contractors and subcontractors.) The key objective has been to provide these former workers with medical evaluations in order to determine whether workers have experienced significant risk due to workplace exposure to hazards. Exposures to asbestos, beryllium, and noise can produce specific medical conditions: asbestosis, berylliosis, and noise-induced hearing loss (NIHL). Each of these conditions can be identified by specific, non-invasive screening tests, which are widely available. Treatments are also available for individuals affected by these conditions. This project involved two phases. Phase I involved a needs and risk assessment, characterizing the nature and extent of workplace health hazards which may have increased the risk for long-term health effects. We categorized jobs and tasks by likelihood of exposures to specific workplace health hazards; and located and established contact with former Hanford workers. Phase II involved implementation of medical monitoring programs for former workers whose individual work history indicated significant risk for adverse health effects. We identified 118,000 former workers, employed from 1943 to 1997. After excluding current workers, construction workers, and deceased workers, the total estimated number of former workers eligible for screening was 72,611. By September, 2006, 53,010 workers had been contacted, 20,298 responded, 2,835 were eligible and authorized, and 2,773 workers were ultimately screened. The cohort was 80% male, 85% white, and had a mean age of 63 years (range 24-96 years) at the time of first exam. Participants completed an occupational health history survey prior to the medical exam. Former Hanford workers were considered eligible for an exam if they reported exposure to asbestos, beryllium, or noise, or if a review of their Hanford work history indicated possible or probable exposure to one of these three hazards. We also invited any former Hanford worker who requested an exam to participate, regardless of documentation of exposure. The screening exam included a problem-focused physical exam, along with screening tests for one or more of three specific medical conditions: asbestosis (chest X-ray and spirometry), berylliosis (chest X-ray, spirometry, and beryllium-induced lymphocyte proliferation test), and NIHL (audiometry). We assisted ill workers in filing appropriate workers’ compensation claims, and facilitated appropriate follow-up medical care. This program has made an important contribution to the health of former DOE contractor workers at the Hanford defense nuclear site.

  9. medical

    National Nuclear Security Administration (NNSA)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal GasAdministration Medal01 Sandia4) August 20123/%2A en46Afedkcp |field

  10. Medical ice slurry production device

    DOE Patents [OSTI]

    Kasza, Kenneth E. (Palos Park, IL); Oras, John (Des Plaines, IL); Son, HyunJin (Naperville, IL)

    2008-06-24

    The present invention relates to an apparatus for producing sterile ice slurries for medical cooling applications. The apparatus is capable of producing highly loaded slurries suitable for delivery to targeted internal organs of a patient, such as the brain, heart, lungs, stomach, kidneys, pancreas, and others, through medical size diameter tubing. The ice slurry production apparatus includes a slurry production reservoir adapted to contain a volume of a saline solution. A flexible membrane crystallization surface is provided within the slurry production reservoir. The crystallization surface is chilled to a temperature below a freezing point of the saline solution within the reservoir such that ice particles form on the crystallization surface. A deflector in the form of a reciprocating member is provided for periodically distorting the crystallization surface and dislodging the ice particles which form on the crystallization surface. Using reservoir mixing the slurry is conditioned for easy pumping directly out of the production reservoir via medical tubing or delivery through other means such as squeeze bottles, squeeze bags, hypodermic syringes, manual hand delivery, and the like.

  11. Laser separation of medical isotopes

    SciTech Connect (OSTI)

    Eerkens, J.W.; Puglishi, D.A.; Miller, W.H.

    1996-12-31

    There is an increasing demand for different separated isotopes as feed material for reactor and cyclotron-produced radioisotopes used by a fast-growing radiopharmaceutical industry. One new technology that may meet future demands for medical isotopes is molecular laser isotope separation (MLIS). This method was investigated for the enrichment of uranium in the 1970`s and 1980s by Los Alamos National Laboratory, Isotope Technologies, and others around the world. While South Africa and Japan have continued the development of MLIS for uranium and are testing pilot units, around 1985 the United States dropped the LANL MLIS program in favor of AVLIS (atomic vapor LIS), which uses electron-beam-heated uranium metal vapor. AVLIS appears difficult and expensive to apply to most isotopes of medical interest, however, whereas MLIS technology, which is based on cooled hexafluorides or other gaseous molecules, can be adapted more readily. The attraction of MLIS for radiopharmaceutical firms is that it allows them to operate their own dedicated separators for small-quantity productions of critical medical isotopes, rather than having to depend on large enrichment complexes run by governments, which are only optimal for large-quantity productions. At the University of Missouri, the authors are investigating LIS of molybdenum isotopes using MoF{sub 6}, which behaves in a way similar to UF{sub 6}, studied in the past.

  12. Investigating Students' Ideas About X-rays While Developing Teaching Materials for a Medical Physics Course

    SciTech Connect (OSTI)

    Kalita, Spartak; Zollman, Dean [Department of Physics, Kansas State University, Manhattan, KS, 66506-2601 (United States)

    2007-01-30

    The goal of the Modern Miracle Medical Machines project is to promote pre-med students' interest in physics by using the context of contemporary medical imaging. The X-ray medical imaging learning module will be a central part of this effort. To investigate students' transfer of learning in this context we have conducted a series of clinical and teaching interviews. In the latter interview, some of the proposed learning materials were used. The students brought to our discussion pieces of knowledge transferred from very different sources such as their own X-ray experiences, previous learning and the mass media. This transfer seems to result in more or less firm mental models which often are not always internally consistent or coherent.

  13. Fourier plane image amplifier

    DOE Patents [OSTI]

    Hackel, L.A.; Hermann, M.R.; Dane, C.B.; Tiszauer, D.H.

    1995-12-12

    A solid state laser is frequency tripled to 0.3 {micro}m. A small portion of the laser is split off and generates a Stokes seed in a low power oscillator. The low power output passes through a mask with the appropriate hole pattern. Meanwhile, the bulk of the laser output is focused into a larger stimulated Brillouin scattering (SBS) amplifier. The low power beam is directed through the same cell in the opposite direction. The majority of the amplification takes place at the focus which is the fourier transform plane of the mask image. The small holes occupy large area at the focus and thus are preferentially amplified. The amplified output is now imaged onto the multichip module where the holes are drilled. Because of the fourier plane amplifier, only about 1/10th the power of a competitive system is needed. This concept allows less expensive masks to be used in the process and requires much less laser power. 1 fig.

  14. Fourier plane image amplifier

    DOE Patents [OSTI]

    Hackel, Lloyd A. (Livermore, CA); Hermann, Mark R. (San Ramon, CA); Dane, C. Brent (Livermore, CA); Tiszauer, Detlev H. (Tracy, CA)

    1995-01-01

    A solid state laser is frequency tripled to 0.3 .mu.m. A small portion of the laser is split off and generates a Stokes seed in a low power oscillator. The low power output passes through a mask with the appropriate hole pattern. Meanwhile, the bulk of the laser output is focused into a larger stimulated Brillouin scattering (SBS) amplifier. The low power beam is directed through the same cell in the opposite direction. The majority of the amplification takes place at the focus which is the fourier transform plane of the mask image. The small holes occupy large area at the focus and thus are preferentially amplified. The amplified output is now imaged onto the multichip module where the holes are drilled. Because of the fourier plane amplifier, only .about.1/10th the power of a competitive system is needed. This concept allows less expensive masks to be used in the process and requires much less laser power.

  15. Image-Based Motion he use of image guidance in medical applications is

    E-Print Network [OSTI]

    Hamarneh, Ghassan

    to be monitored. The target region is analyzed to identify key features to be tracked for displacements based

  16. Global Health and Graduate Medical Education: A Systematic Review

    E-Print Network [OSTI]

    Bills, C.; Ahn, J.

    2015-01-01

    Total MERSQI, medical education research study qualityGraduate Medical 28 Global Education: A Systematic Reviewin graduate medical education (GME); many residencies now

  17. ORISE: The Medical Basis for Radiation-Accident Preparedness...

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

    The Medical Basis for Radiation-Accident Preparedness: Medical Management Proceedings of the Fifth International REACTS Symposium on the Medical Basis for Radiation-Accident...

  18. The final technical report of the CRADA, Medical Accelerator Technology

    E-Print Network [OSTI]

    Chu, William T.; Rawls, John M.

    2000-01-01

    the marketplace. Final Technical Report: Medical AcceleratorPTCOG XXV, 1996. Final Technical Report: Medical AcceleratorFinal Technical Report: Medical Accelerator Technology (SC-

  19. Is the fast Hankel transform faster than quadrature? The fast Hankel transform (FHT) implemented with digital

    E-Print Network [OSTI]

    Key, Kerry

    Is the fast Hankel transform faster than quadrature? Kerry Key1 ABSTRACT The fast Hankel transform (FHT) implemented with digital filters has been the algorithm of choice in EM geophysics for a few transform integral into a sum of partial integrals that are each evaluated with quadrature. The convergence

  20. Linear Transformations In this Chapter, we will define the notion of a linear transformation between

    E-Print Network [OSTI]

    Fournier, John J.F.

    Chapter 6 Linear Transformations In this Chapter, we will define the notion of a linear transformation between two vector spaces V and W which are defined over the same field and prove the most basic transformations is equivalent to matrix theory. We will also study the geometric properties of linear

  1. THE CAMPAIGN TO TRANSFORM EINSTEIN 2 THE CAMPAIGN TO TRANSFORM EINSTEIN

    E-Print Network [OSTI]

    Emmons, Scott

    THE CAMPAIGN TO TRANSFORM EINSTEIN #12;2 THE CAMPAIGN TO TRANSFORM EINSTEIN #12;ALBERT EINSTEIN, resulting in a significant reduction in potential new treatments coming to market. This makes our work on a new chapter of growth and transformative change. With the guidance and full support of our Board

  2. The Fourier Transform A Primer Hagit Shatkay

    E-Print Network [OSTI]

    The Fourier Transform ­ A Primer Hagit Shatkay Department of Computer Science Brown University Providence, Rhode Island 02912 CS­95­37 November 1995 #12; #12; The Fourier Transform -- A Primer Hagit Shatkay Department of Computer Science Brown University Providence, RI 02912 1 Introduction The Fourier

  3. Fourier Transform, Riemann Surfaces and Indefinite Metric

    E-Print Network [OSTI]

    Fominov, Yakov

    Fourier Transform, Riemann Surfaces and Indefinite Metric P. G. Grinevich, S.P.Novikov Zakharov Park, College Park, USA #12;What is Fourier Transform in Riemann Surfaces? Which Problems need it? Discrete Analog of The Fourier/Laurent bases in Riemann Sur- faces was constructed by Krichever-Novikov (KN

  4. Biochemical transformation of solid carbonaceous material

    DOE Patents [OSTI]

    Lin, Mow S. (Rocky Point, NY); Premuzic, Eugene T. (East Moriches, NY)

    2001-09-25

    A method of biochemically transforming macromolecular compounds found in solid carbonaceous materials, such as coal is provided. The preparation of new microorganisms, metabolically weaned through challenge growth processes to biochemically transform solid carbonaceous materials at extreme temperatures, pressures, pH, salt and toxic metal concentrations is also disclosed.

  5. RESTRICTED RADON TRANSFORMS AND UNIONS OF HYPERPLANES

    E-Print Network [OSTI]

    RESTRICTED RADON TRANSFORMS AND UNIONS OF HYPERPLANES Daniel M. Oberlin Department of Mathematics, Florida State University October 2004 x1 Introduction If #6; (n 1) is the unit sphere in R n , the Radon in a ball. The following theorem, which we regard as an estimate for a restricted Radon transform

  6. ON RADON TRANSFORMS AND THE KAPPA OPERATOR

    E-Print Network [OSTI]

    Vallette, Bruno

    ON RADON TRANSFORMS AND THE KAPPA OPERATOR François Rouvière (Université de Nice) Bruxelles, November 24, 2006 1. Introduction In 1917 Johann Radon solved the following problem : ...nd a function f called the Radon transform. Apart from an important contribution by Fritz John (1938) the problem fell

  7. RESTRICTED RADON TRANSFORMS AND UNIONS OF HYPERPLANES

    E-Print Network [OSTI]

    RESTRICTED RADON TRANSFORMS AND UNIONS OF HYPERPLANES Daniel M. Oberlin Department of Mathematics, Florida State University October 2004 §1 Introduction If (n-1) is the unit sphere in Rn , the Radon, which we regard as an estimate for a restricted Radon transform, is typical of our results here: Theorem

  8. Simulation of Top Oil Temperature for Transformers

    E-Print Network [OSTI]

    Simulation of Top Oil Temperature for Transformers Masters Thesis and Final Project Report Power of Mines Georgia Tech · Illinois · Iowa State · Texas A&M · Washington State · Wisconsin Simulation of Top-Oil for the PSERC project "On-Line Peak Loading of Substation Distribution Transformers Through Accurate Temperature

  9. Enterprise transformation :lessons learned, pathways to success.

    SciTech Connect (OSTI)

    Slavin, Adam M.; Woodard, Joan Brune

    2006-05-01

    In this report, we characterize the key themes of transformation and tie them together in a ''how to'' guide. The perspectives were synthesized from strategic management literature, case studies, and from interviews with key management personnel from private industry on their transformation experiences.

  10. A broadband transformation-optics metasurface lens

    SciTech Connect (OSTI)

    Wan, Xiang; Xiang Jiang, Wei; Feng Ma, Hui; Jun Cui, Tie, E-mail: tjcui@seu.edu.cn [State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096 (China)

    2014-04-14

    We present a transformational metasurface Luneburg lens based on the quasi-conformal mapping method, which has weakly anisotropic constitutive parameters. We design the metasurface lens using inhomogeneous artificial structures to realize the required surface refractive indexes. The transformational metasurface Luneburg lens is fabricated and the measurement results demonstrate very good performance in controlling the radiated surface waves.

  11. Imaging Scatterometry

    E-Print Network [OSTI]

    Madsen, Morten Hannibal

    2015-01-01

    We present an optical metrology system for characterization of topography of micro/nano-structures on a surface or embedded in a semi-transparent material. Based on the principles of scatterometry, where the intensity of scattered light is used as a 'fingerprint' to reconstruct a surface, this new imaging scatterometer can easily find areas of interest on the cm scale and measure multiple segments simultaneously. The imaging scatterometer measures structural features, such as height, width, and sidewall angle of a grating locally on few um2 areas with nm resolution. We demonstrate two imaging scatterometers, one built into an optical microscope and one in a split configuration. The two scatterometers are targeted characterization of mm2 and cm2 areas, respectively, and both setups are validated using nano-textured samples.

  12. On the Fock Transformation in Nonlinear Relativity

    E-Print Network [OSTI]

    Bouda, A

    2012-01-01

    In this paper, we propose a new deformed Poisson brackets which leads to the Fock coordinate transformation by using an analogous procedure as in Deformed Special Relativity. We therefore derive the corresponding momentum transformation which is revealed to be different from previous results. Contrary to the earlier version of Fock's nonlinear relativity for which plane waves cannot be described, our resulting algebra keeps invariant for any coordinate and momentum transformations the four dimensional contraction $p_{\\mu} x^{\\mu} $, allowing therefore to associate plane waves for free particles. As in Deformed Special Relativity, we also derive a canonical transformation with which the new coordinates and momentum satisfy the usual Poisson brackets and therefore transform like the usual Lorentz vectors. Finally, we establish the dispersion relation for Fock's nonlinear relativity.

  13. High Transformer ratios in collinear wakefield accelerators.

    SciTech Connect (OSTI)

    Power, J. G.; Conde, M.; Yusof, Z.; Gai, W.; Jing, C.; Kanreykin, A.; Schoessow, P.; High Energy Physics; Euclid Techlabs, LLC

    2008-01-01

    Based on our previous experiment that successfully demonstrated wakefield transformer ratio enhancement in a 13.625 GHz dielectric-loaded collinear wakefield accelerator using the ramped bunch train technique, we present here a redesigned experimental scheme for even higher enhancement of the efficiency of this accelerator. Design of a collinear wakefield device with a transformer ratio R2, is presented. Using a ramped bunch train (RBT) rather than a single drive bunch, the enhanced transformer ratio (ETR) technique is able to increase the transformer ratio R above the ordinary limit of 2. To match the wavelength of the fundamental mode of the wakefield with the bunch length (sigmaz=2 mm) of the new Argonne wakefield accelerator (AWA) drive gun (where the experiment will be performed), a 26.625 GHz dielectric based accelerating structure is required. This transformer ratio enhancement technique based on our dielectric-loaded waveguide design will result in a compact, high efficiency accelerating structures for future wakefield accelerators.

  14. Self-imaging-based laser collimation testing technique

    SciTech Connect (OSTI)

    Mudassar, Asloob A.; Butt, Saira

    2010-11-01

    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.

  15. Dynamic imaging with electron microscopy

    ScienceCinema (OSTI)

    Campbell, Geoffrey; McKeown, Joe; Santala, Melissa

    2014-05-30

    Livermore researchers have perfected an electron microscope to study fast-evolving material processes and chemical reactions. By applying engineering, microscopy, and laser expertise to the decades-old technology of electron microscopy, the dynamic transmission electron microscope (DTEM) team has developed a technique that can capture images of phenomena that are both very small and very fast. DTEM uses a precisely timed laser pulse to achieve a short but intense electron beam for imaging. When synchronized with a dynamic event in the microscope's field of view, DTEM allows scientists to record and measure material changes in action. A new movie-mode capability, which earned a 2013 R&D 100 Award from R&D Magazine, uses up to nine laser pulses to sequentially capture fast, irreversible, even one-of-a-kind material changes at the nanometer scale. DTEM projects are advancing basic and applied materials research, including such areas as nanostructure growth, phase transformations, and chemical reactions.

  16. Compact accelerator for medical therapy

    DOE Patents [OSTI]

    Caporaso, George J.; Chen, Yu-Jiuan; Hawkins, Steven A.; Sampayan, Stephen E.; Paul, Arthur C.

    2010-05-04

    A compact accelerator system having an integrated particle generator-linear accelerator with a compact, small-scale construction capable of producing an energetic (.about.70-250 MeV) proton beam or other nuclei and transporting the beam direction to a medical therapy patient without the need for bending magnets or other hardware often required for remote beam transport. The integrated particle generator-accelerator is actuable as a unitary body on a support structure to enable scanning of a particle beam by direction actuation of the particle generator-accelerator.

  17. Medical Screening | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested Parties - WAPAEnergy May 28 Webinar to Focus on7/15 1 MEDICAL

  18. ContentsContents2424Fourier 1. The Fourier transform

    E-Print Network [OSTI]

    Vickers, James

    ContentsContents2424Fourier transforms 1. The Fourier transform 2. Properties of the Fourier Transform 3. Some Special Fourier Transform Pairs Learning outcomes needs doing Time allocation You mathematical topics this time may vary considerably. 1 #12;The Fourier Transform 24.1 Introduction

  19. Orthogonal fast spherical Bessel transform on uniform grid

    E-Print Network [OSTI]

    Serov, Vladislav V

    2015-01-01

    We propose an algorithm for the orthogonal fast discrete spherical Bessel transform on an uniform grid. Our approach is based upon the spherical Bessel transform factorization into the two subsequent orthogonal transforms, namely the fast Fourier transform and the orthogonal transform founded on the derivatives of the discrete Legendre orthogonal polynomials.

  20. Transformations between symmetric sets of quantum states

    E-Print Network [OSTI]

    Vedran Dunjko; Erika Andersson

    2012-06-22

    We investigate probabilistic transformations of quantum states from a `source' set to a `target' set of states. Such transforms have many applications. They can be used for tasks which include state-dependent cloning or quantum state discrimination, and as interfaces between systems whose information encodings are not related by a unitary transform, such as continuous-variable systems and finite-dimensional systems. In a probabilistic transform, information may be lost or leaked, and we explain the concepts of leak and redundancy. Following this, we show how the analysis of probabilistic transforms significantly simplifies for symmetric source and target sets of states. In particular, we give a simple linear program which solves the task of finding optimal transforms, and a method of characterizing the introduced leak and redundancy in information-theoretic terms. Using the developed techniques, we analyse a class of transforms which convert coherent states with information encoded in their relative phase to symmetric qubit states. Each of these sets of states on their own appears in many well studied quantum information protocols. Finally, we suggest an asymptotic realization based on quantum scissors.

  1. Transformations of asymptotic gravitational-wave data

    E-Print Network [OSTI]

    Michael Boyle

    2015-09-16

    Gravitational-wave data is gauge dependent. While we can restrict the class of gauges in which such data may be expressed, there will still be an infinite-dimensional group of transformations allowed while remaining in this class, and almost as many different---though physically equivalent---waveforms as there are transformations. This paper presents a method for calculating the effects of the most important transformation group, the Bondi-Metzner-Sachs (BMS) group, consisting of rotations, boosts, and supertranslations (which include time and space translations as special cases). To a reasonable approximation, these transformations result in simple coupling between the modes in a spin-weighted spherical-harmonic decomposition of the waveform. It is shown that waveforms from simulated compact binaries in the publicly available SXS waveform catalog contain unmodeled effects due to displacement and drift of the center of mass, accounting for mode-mixing at typical levels of 1%. However, these effects can be mitigated by measuring the motion of the system's center of mass, and applying the opposite transformation to the waveform data. More generally, controlling the BMS transformations will be necessary to eliminate the gauge ambiguity inherent in gravitational-wave data for both numerical and analytical waveforms. Open-source code implementing BMS transformations of waveforms is supplied along with this paper.

  2. Fast Hadamard transforms for compressive sensing of joint systems: measurement of a 3.2 million-dimensional bi-photon probability distribution

    E-Print Network [OSTI]

    Daniel J. Lum; Samuel H. Knarr; John C. Howell

    2015-07-24

    We demonstrate how to efficiently implement extremely high-dimensional compressive imaging of a bi-photon probability distribution. Our method uses fast-Hadamard-transform Kronecker-based compressive sensing to acquire the joint space distribution. We list, in detail, the operations necessary to enable fast-transform-based matrix-vector operations in the joint space to reconstruct a 16.8 million-dimensional image in less than 10 minutes. Within a subspace of that image exists a 3.2 million-dimensional bi-photon probability distribution. In addition, we demonstrate how the marginal distributions can aid in the accuracy of joint space distribution reconstructions.

  3. Transformations of $W$-Type Entangled States

    E-Print Network [OSTI]

    S. K?nta?; S. Turgut

    2010-03-10

    The transformations of $W$-type entangled states by using local operations assisted with classical communication are investigated. For this purpose, a parametrization of the $W$-type states which remains invariant under local unitary transformations is proposed and a complete characterization of the local operations carried out by a single party is given. These are used for deriving the necessary and sufficient conditions for deterministic transformations. A convenient upper bound for the maximum probability of distillation of arbitrary target states is also found.

  4. A Family of Circular Bargmann Transforms

    E-Print Network [OSTI]

    Zouhair Mouayn

    2011-05-24

    When considering a charged particle evolving in the Poincar\\'e disk under influence of a uniform magnetic field with a strength proportional to +1, we construct for all hyperbolic Landau level \\epsilon^\\gamma_$m$ m = 4m(-m), m 2 Z+ \\[0, /2] a family of coherent states transforms labeled by (,m) and mapping isometrically square integrable functions on the unit circle with respect to the measure sin^\\gamma-2m (\\theta/2) d\\theta onto spaces of bound states of the particle. These transforms are called circular Bargmann transforms.

  5. SU-E-P-01: An Informative Review On the Role of Diagnostic Medical Physicist in the Academic and Private Medical Centers

    SciTech Connect (OSTI)

    Weir, V; Zhang, J

    2014-06-01

    Purpose: The role of physicist in the academic and private hospital environment continues to evolve and expand. This becomes more obvious with the newly revised requirements of the Joint Commission (JC) on imaging modalities and the continued updated requirements of ACR accreditation for medical physics (i.e., starting in June 2014, a physicists test will be needed before US accreditation). We provide an informative review on the role of diagnostic medical physicist and hope that our experience will expedite junior physicists in understanding their role in medical centers, and be ready to more opportunities. Methods: Based on our experience, diagnostic medical physicists in both academic and private medical centers perform several clinical functions. These include providing clinical service and physics support, ensuring that all ionizing radiation devices are tested and operated in compliance with the State and Federal laws, regulations and guidelines. We also discuss the training and education required to ensure that the radiation exposure to patients and staff is as low as reasonably achievable. We review the overlapping roles of medical and health physicist in some institutions. Results: A detailed scheme on the new requirements (effective 7/1/2014) of the JC is provided. In 2015, new standards for fluoroscopy, cone beam CT and the qualifications of staff will be phased in. A summary of new ACR requirements for different modalities is presented. Medical physicist have other duties such as sitting on CT and fluoroscopy committees for protocols design, training of non-radiologists to meet the new fluoroscopy rules, as well as helping with special therapies such as Yittrium 90 cases. Conclusion: Medical physicists in both academic and private hospitals are positioned to be more involved and prominent. Diagnostic physicists need to be more proactive to involve themselves in the day to day activities of the radiology department.

  6. The wavelet/scalar quantization compression standard for digital fingerprint images

    SciTech Connect (OSTI)

    Bradley, J.N.; Brislawn, C.M.

    1994-04-01

    A new digital image compression standard has been adopted by the US Federal Bureau of Investigation for use on digitized gray-scale fingerprint images. The algorithm is based on adaptive uniform scalar quantization of a discrete wavelet transform image decomposition and is referred to as the wavelet/scalar quantization standard. The standard produces archival quality images at compression ratios of around 20:1 and will allow the FBI to replace their current database of paper fingerprint cards with digital imagery.

  7. Performance Analysis between Two Sparsity Constrained MRI Methods: Highly Constrained Backprojection(HYPR) and Compressed Sensing(CS) for Dynamic Imaging 

    E-Print Network [OSTI]

    Arzouni, Nibal

    2012-10-19

    of the unknown x-f spectrum of the dynamic images. tF is the temporal Fourier transform to make the signal sparse. R is the radon transform, and sF is the Fourier transform along the radial direction of the sinogram. M is the sampling operator along... backprojection like inverse radon transform. The quality of the composite image determines the quality of the reconstructed time frames. The different time frames are reconstructed by multiplying the composite image with the corresponding weighting...

  8. Evaluation of spatial-spectral filtering in non-paraxial volume holographic imaging systems

    E-Print Network [OSTI]

    Watson, Jonathan M

    2008-01-01

    In this thesis, the properties of transmission-mode volume phase holograms as spatial-spectral filters in optical systems for microscopic medical imaging are evaluated. In experiment, the relationship between the angle of ...

  9. Human torso phantom for imaging of heart with realistic modes of cardiac and respiratory motion

    DOE Patents [OSTI]

    Boutchko, Rostyslav; Balakrishnan, Karthikayan; Gullberg, Grant T; O'Neil, James P

    2013-09-17

    A human torso phantom and its construction, wherein the phantom mimics respiratory and cardiac cycles in a human allowing acquisition of medical imaging data under conditions simulating patient cardiac and respiratory motion.

  10. NETL's High-Speed Imaging System Successfully Applied in Medicine, Broad Spectrum of Industry

    Broader source: Energy.gov [DOE]

    A groundbreaking Department of Energy-developed imaging system originally designed to help create cleaner fossil energy processes is finding successful applications in a wide range of medical, chemical processing, energy, and other industries.

  11. Lensless x-ray imaging in reflection geometry

    SciTech Connect (OSTI)

    Roy, S.; Parks, D.H.; Seu, K.A.; Turner, J.J.; Chao, W.; Anderson, E.H.; Cabrini, S.; Kevan, S.D.; Su, R.

    2011-02-03

    Lensless X-ray imaging techniques such as coherent diffraction imaging and ptychography, and Fourier transform holography can provide time-resolved, diffraction-limited images. Nearly all examples of these techniques have focused on transmission geometry, restricting the samples and reciprocal spaces that can be investigated. We report a lensless X-ray technique developed for imaging in Bragg and small-angle scattering geometries, which may also find application in transmission geometries. We demonstrate this by imaging a nanofabricated pseudorandom binary structure in small-angle reflection geometry. The technique can be used with extended objects, places no restriction on sample size, and requires no additional sample masking. The realization of X-ray lensless imaging in reflection geometry opens up the possibility of single-shot imaging of surfaces in thin films, buried interfaces in magnetic multilayers, organic photovoltaic and field-effect transistor devices, or Bragg planes in a single crystal.

  12. Imaging bolometer

    DOE Patents [OSTI]

    Wurden, Glen A. (Los Alamos, NM)

    1999-01-01

    Radiation-hard, steady-state imaging bolometer. A bolometer employing infrared (IR) imaging of a segmented-matrix absorber of plasma radiation in a cooled-pinhole camera geometry is described. The bolometer design parameters are determined by modeling the temperature of the foils from which the absorbing matrix is fabricated by using a two-dimensional time-dependent solution of the heat conduction equation. The resulting design will give a steady-state bolometry capability, with approximately 100 Hz time resolution, while simultaneously providing hundreds of channels of spatial information. No wiring harnesses will be required, as the temperature-rise data will be measured via an IR camera. The resulting spatial data may be used to tomographically investigate the profile of plasmas.

  13. Imaging bolometer

    DOE Patents [OSTI]

    Wurden, G.A.

    1999-01-19

    Radiation-hard, steady-state imaging bolometer is disclosed. A bolometer employing infrared (IR) imaging of a segmented-matrix absorber of plasma radiation in a cooled-pinhole camera geometry is described. The bolometer design parameters are determined by modeling the temperature of the foils from which the absorbing matrix is fabricated by using a two-dimensional time-dependent solution of the heat conduction equation. The resulting design will give a steady-state bolometry capability, with approximately 100 Hz time resolution, while simultaneously providing hundreds of channels of spatial information. No wiring harnesses will be required, as the temperature-rise data will be measured via an IR camera. The resulting spatial data may be used to tomographically investigate the profile of plasmas. 2 figs.

  14. High-resolution single photon planar and spect imaging of brain and neck employing a system of two co-registered opposed gamma imaging heads

    DOE Patents [OSTI]

    Majewski, Stanislaw (Yorktown, VA); Proffitt, James (Newport News, VA)

    2011-12-06

    A compact, mobile, dedicated SPECT brain imager that can be easily moved to the patient to provide in-situ imaging, especially when the patient cannot be moved to the Nuclear Medicine imaging center. As a result of the widespread availability of single photon labeled biomarkers, the SPECT brain imager can be used in many locations, including remote locations away from medical centers. The SPECT imager improves the detection of gamma emission from the patient's head and neck area with a large field of view. Two identical lightweight gamma imaging detector heads are mounted to a rotating gantry and precisely mechanically co-registered to each other at 180 degrees. A unique imaging algorithm combines the co-registered images from the detector heads and provides several SPECT tomographic reconstructions of the imaged object thereby improving the diagnostic quality especially in the case of imaging requiring higher spatial resolution and sensitivity at the same time.

  15. Darboux transformation for the NLS equation

    SciTech Connect (OSTI)

    Aktosun, Tuncay; Mee, Cornelis van der

    2010-03-08

    We analyze a certain class of integral equations associated with Marchenko equations and Gel'fand-Levitan equations. Such integral equations arise through a Fourier transformation on various ordinary differential equations involving a spectral parameter. When the integral operator is perturbed by a finite-rank perturbation, we explicitly evaluate the change in the solution in terms of the unperturbed quantities and the finite-rank perturbation. We show that this result provides a fundamental approach to derive Darboux transformations for various systems of ordinary differential operators. We illustrate our theory by providing the explicit Darboux transformation for the Zakharov-Shabat system and show how the potential and wave function change when a simple discrete eigenvalue is added to the spectrum, and thus we also provide a one-parameter family of Darboux transformations for the nonlinear Schroedinger equation.

  16. Transformer Synthesis for VHF Converters I. INTRODUCTION

    E-Print Network [OSTI]

    Perreault, Dave

    , such as a series resonance to replace the tank and transformer in a resonant converter [8], [9]. Such integrated increased loss due to flux shielding as compared to spiral designs. !"#$%&'"()'*%')$""% +,)+%-"./%011

  17. TransformingEngineers intoLeaders

    E-Print Network [OSTI]

    ) · Environmental Engineering Systems (Water) · Materials at the Nanoscale · Mechanical Engineering Expedited Bioengineering Electrical Engineering (Power Systems) Environmental Engineering (Water) MaterialsTransformingEngineers intoLeaders Online Master of Science in Engineering #12;HAVE QUESTIONS? READY

  18. Sustainability transformations in Olympic host cities

    E-Print Network [OSTI]

    Mokrushina, Ksenia

    2012-01-01

    The Olympic Games represent an unparalleled fast-track urban development opportunity for Olympic host cities. Taking the premise that the transformational effect of the Olympics has a potential to drive long-term urban ...

  19. TRANSFORMING USABILITY ENGINEERING REQUIREMENTS INTO SOFTWARE

    E-Print Network [OSTI]

    Carter, Jim

    Chapter N TRANSFORMING USABILITY ENGINEERING REQUIREMENTS INTO SOFTWARE ENGINEERING SPECIFICATIONS Engineers as the basis of analysis and design in software development. While UML is very strong, requirements, software engineering, specifications, unified usability engineering 1. INTRODUCTION While

  20. Study on transformation-based invisibility cloaks

    E-Print Network [OSTI]

    Zhang, Baile

    2009-01-01

    The combination of the development of modern metamaterials, which are artificial materials whose constitutive parameters can be engineered to achieve special functions, and the coordinate transformation theory, has offered ...

  1. Lean transformation of a supply chain organization

    E-Print Network [OSTI]

    Walsh, Daniel Andres

    2008-01-01

    There are two basic schools of thought regarding how to approach a Lean transformation. Either start with introducing Lean tools or start with driving a Lean cultural change. Academic researchers like Steve Spear (Harvard/MIT), ...

  2. 2010 Solar Market Transformation Analysis and Tools

    SciTech Connect (OSTI)

    none,

    2010-04-01

    This document describes the DOE-funded solar market transformation analysis and tools under development in Fiscal Year 2010 so that stakeholders can access available resources and get engaged where interested.

  3. EIN SYSTEM ZUR TRANSFORMATION VON KONSISTENZ-

    E-Print Network [OSTI]

    Habel, Annegret

    Coconut zur Automatisierung dieser Transformationen. Über eine Erweiterung der Skriptsprache Ant können;INHALTSVERZEICHNIS iii 5 Coconut: Ein System zur Transformation von Bedingungen 26 5.1 Anforderungen Literaturverzeichnis 72 A Transformationen mit Coconut 76 A.1 Mobilfunknetze

  4. Proof Transformations in Higher-Order Logic

    E-Print Network [OSTI]

    Spirtes, Peter

    is given and its partial correctness is proven. Strong termination of this al- gorithm remains a conjectureProof Transformations in Higher-Order Logic Frank Pfenning January 1987 Submitted in partial

  5. Transformation Strain and Crystallographic Texture in Steels

    E-Print Network [OSTI]

    Kundu, Saurabh

    . . . . . . . . . . . . . . . . . . . . . . 29 2.5.2 Fatigue . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 2.6 Evolution of martensitic transformation . . . . . . . . . . . . . 34 v CONTENTS vi 2.6.1 Koistinen-Marburger equation . . . . . . . . . . . . . . 34 2.6.2 Justification... TEXTURE . . . . . . . . . . . . . . 195 Chapter 1 Introduction Displacive transformations in steels such as bainite and martensite gener- ate dilatational and shear strains of about 0.03 and 0.22-0.26 respectively [1]. However, the shear strains associated...

  6. Medical expense deduction for the individual taxpayer 

    E-Print Network [OSTI]

    Winters, Gerald Milton

    1960-01-01

    MEDICAL EXPENSE DEDUCTION FOR THE INDIVIDUAL TAXPAYER A Thesis By GERALD M. WINTERS Submitted to the Graduate School of the Agricultural and Mechanical College of T~as in partial fulfillment of the requirements for the degree of MASTER... in the preparation of this thesis and to my wife, Verna Joy, goes special gratitude for her patience and assistance in making this work possible and worthwhile. MEDICAL EXPENSE DEDUCTION FOR THE INDIVIDUAL TAXPAYER Chapter I HISTORICAL REVIEW OF THE MEDICAL...

  7. Application of the 2-D Continuous Wavelet Transforms for Characterization of Geological and Geophysical Data 

    E-Print Network [OSTI]

    Vuong, Au K

    2014-05-05

    continuous wavelet transforms to imag- ing of Shatsky Rise plateau using marine seismic data . . . . . 3 1.1.3 Multi-scale analysis the surface roughness of the minerals . . . 6 1.2 Dissertation structure... evolution. Oceanic plateaus are very large igneous provinces in the deep 3 oceans and are generally a result of massive basaltic volcanism. Observations show that the size of these plateaus ranges up to millions of square kilometers, suggest- ing they must...

  8. Building America Whole-House Solutions for New Homes: Transformations...

    Energy Savers [EERE]

    Transformations, Inc. Net Zero Energy Communities (Fact Sheet) Building America Whole-House Solutions for New Homes: Transformations, Inc. Net Zero Energy Communities (Fact Sheet)...

  9. The Path to Transforming Knowledge into Energy Projects: DOE...

    Office of Environmental Management (EM)

    The Path to Transforming Knowledge into Energy Projects: DOE Tribal Renewable Energy Webinar Series 2015 The Path to Transforming Knowledge into Energy Projects: DOE Tribal...

  10. Vortex Hydro Energy Develops Transformational Technology to Harness...

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

    Vortex Hydro Energy Develops Transformational Technology to Harness Energy from Water Currents Vortex Hydro Energy Develops Transformational Technology to Harness Energy from Water...

  11. Toward Sustainable Communities: Transition and Transformations in Environmental Policy

    E-Print Network [OSTI]

    Calloway, Michele

    2001-01-01

    and Transformations in Environmental Policy By Daniel A.Transformations in Environmental Policy. Cambridge, MA: MITpaper). US$25.00 Environmental policy in the United States

  12. Innovative Facility Kicks Off First Experiment to Transform Building...

    Energy Savers [EERE]

    Innovative Facility Kicks Off First Experiment to Transform Building Energy Performance Innovative Facility Kicks Off First Experiment to Transform Building Energy Performance...

  13. Data Center Transformer from "Always On" to "Always Available...

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

    Data Center Transformer from "Always On" to "Always Available" Data Center Transformer from "Always On" to "Always Available" Data Center Monitoring System for Controlling Power...

  14. Properties of the Transformation Semigroup of the Solitaire Stream

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    is an element of the transformation group(semigroup) G; 12. G =G= S giG gi , where G is a transformation group

  15. 2015 Peer Review Presentations-Demonstration and Market Transformation...

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

    Demonstration and Market Transformation 2015 Peer Review Presentations-Demonstration and Market Transformation The Bioenergy Technologies Office hosted its 2015 Project Peer Review...

  16. ARPA-E Announces $43 Million for Transformational Energy Storage...

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

    43 Million for Transformational Energy Storage Projects to Advance Electric Vehicle and Grid Technologies ARPA-E Announces 43 Million for Transformational Energy Storage Projects...

  17. Metal Ion-Assisted Transformations of 2-Pyridinealdoxime and...

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

    Metal Ion-Assisted Transformations of 2-Pyridinealdoxime and Hexafluorophosphate Metal Ion-Assisted Transformations of 2-Pyridinealdoxime and Hexafluorophosphate Print Monday, 05...

  18. Institute for Atom-Efficient Chemical Transformations Energy...

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

    Institute for Atom-Efficient Chemical Transformations - an Energy Frontier Research Center The Institute for Atom-Efficient Chemical Transformations (IACT) employs a...

  19. Institute for Atom-Efficient Chemical Transformations Energy...

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

    scientific roadblocks to U.S. energy security. Institute for Atom-Efficient Chemical Transformations The Institute for Atom-Efficient Chemical Transformations (IACT)...

  20. Shrinking cloaks in expanding spacetimes: the role of coordinates and the meaning of transformations in Transformation Optics

    E-Print Network [OSTI]

    Robert T. Thompson; Mohsen Fathi

    2015-06-29

    The fully covariant formulation of transformation optics is used to find the configuration of a cloaking device operating in an expanding universe modelled by a Friedmann-Lema\\^itre-Robertson-Walker spacetime. This spacetime cloak is used as a platform for probing the covariant formulation of transformation optics, thereby rigorously enhancing the conceptual understanding of the theory. By studying the problem in both comoving and physical coordinates we explicitly demonstrate the preservation of general covariance of electrodynamics under the transformation optics procedure. This platform also enables a detailed study of the various transformations that arise in transformation optics. We define a corporeal transformation as the "transformation" of transformation optics, and distinguish it from coordinate and frame transformations. We find that corporeal transformations considered in the literature have generally been restricted to a subset of all possible corporeal transformations, providing a potential mechanism for increased functionality of transformation optics.

  1. ORNL's medical radioisotope project sees centennial campaign...

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

    actinium-225 processing, which provides radioisotopes for medical uses that include cancer treatment. Actinium-225 is a source for bismuth-213, a short-lived, alpha-emitting...

  2. Former Workers Medical Facilities with Experience Evaluating...

    Energy Savers [EERE]

    Beryllium Disease (CBD). Because the medical community at large is not experienced in the evaluation and treatment of individuals with CBD, this list is offered to individuals in...

  3. Therapeutic Hypothermia: Protective Cooling Using Medical Ice...

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

    Therapeutic Hypothermia: Protective Cooling Using Medical Ice Slurry Technology available for licensing: Proprietary method and equipment for making an ice slurry coolant to induce...

  4. EIS-0249: Medical Isotopes Production Project

    Broader source: Energy.gov [DOE]

    This EIS evaluates the potential environmental impacts of a proposal to establish a production capability for molybdenum-99 (Mo-99) and related medical isotopes.

  5. National Center for Medical Rehabilitation Research (NCMRR)

    E-Print Network [OSTI]

    Rau, Don C.

    National Center for Medical Rehabilitation Research (NCMRR) NICHD Report to the NACHHD Council ....................................................... 6 APPLIED RESEARCH--REHABILITATION TECHNOLOGY................................................................................... 10 BEHAVIORAL AND BIOPSYCHOSOCIAL ISSUES IN REHABILITATION

  6. Implementation Guide of Medical Standards for Firefighters

    Broader source: Energy.gov [DOE]

    These guidelines were prepared to assist the DOE contractor site occupational medical programs in developing NFPA-based firefighter standards that comply with the ADA.

  7. Efficient design of precision medical robotics

    E-Print Network [OSTI]

    Hanumara, Nevan Clancy

    2012-01-01

    Medical robotics is increasingly demonstrating the potential to improve patient care through more precise interventions. However, taking inspiration from industrial robotics has often resulted in large, sometimes cumbersome ...

  8. Alternative Breaks Emergency Contact & Verification of Medical

    E-Print Network [OSTI]

    Tipple, Brett

    Alternative Breaks Emergency Contact & Verification of Medical Insurance Form Participant Name is STRONGLY RECCOMENDED, it is not required for participation in Alternative Breaks. *Please note: All

  9. Imaging synthetic aperture radar

    DOE Patents [OSTI]

    Burns, Bryan L. (Tijeras, NM); Cordaro, J. Thomas (Albuquerque, NM)

    1997-01-01

    A linear-FM SAR imaging radar method and apparatus to produce a real-time image by first arranging the returned signals into a plurality of subaperture arrays, the columns of each subaperture array having samples of dechirped baseband pulses, and further including a processing of each subaperture array to obtain coarse-resolution in azimuth, then fine-resolution in range, and lastly, to combine the processed subapertures to obtain the final fine-resolution in azimuth. Greater efficiency is achieved because both the transmitted signal and a local oscillator signal mixed with the returned signal can be varied on a pulse-to-pulse basis as a function of radar motion. Moreover, a novel circuit can adjust the sampling location and the A/D sample rate of the combined dechirped baseband signal which greatly reduces processing time and hardware. The processing steps include implementing a window function, stabilizing either a central reference point and/or all other points of a subaperture with respect to doppler frequency and/or range as a function of radar motion, sorting and compressing the signals using a standard fourier transforms. The stabilization of each processing part is accomplished with vector multiplication using waveforms generated as a function of radar motion wherein these waveforms may be synthesized in integrated circuits. Stabilization of range migration as a function of doppler frequency by simple vector multiplication is a particularly useful feature of the invention; as is stabilization of azimuth migration by correcting for spatially varying phase errors prior to the application of an autofocus process.

  10. RSNA 2002: Image Fusion Image Fusion

    E-Print Network [OSTI]

    Pelizzari, Charles A.

    RSNA 2002: Image Fusion Image Fusion: Introduction to the Technology Charles A. Pelizzari, Ph.D. Department of Radiation and Cellular Oncology The University of Chicago #12;RSNA 2002: Image Fusion "Fusion and limitations) ·Where do we need to go? (future directions) #12;RSNA 2002: Image Fusion Terminology

  11. Image Gallery

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenry Bellamy, Ph.D.FoodHydropower,PrincipalIdaho NationalA pIlyaImage

  12. SUIVI MEDICAL DE SALARIES EXPOSES AU BERYLLIUM : Medical follow-up of beryllium -exposed workers

    E-Print Network [OSTI]

    Boyer, Edmond

    1 SUIVI MEDICAL DE SALARIES EXPOSES AU BERYLLIUM : Medical follow-up of beryllium - exposed workers-up of beryllium-exposed workers. Method: a medical follow-up of workers from a factory machining beryllium (Be preventive measures. Key words: beryllium, sensitisation, occupational exposure, prevention, Lymphocyte

  13. Unified Field Theory From Enlarged Transformation Group. The Covariant Derivative for Conservative Coordinate Transformations and Local Frame Transformations

    E-Print Network [OSTI]

    Edward Lee Green

    2009-08-25

    Pandres has developed a theory in which the geometrical structure of a real four-dimensional space-time is expressed by a real orthonormal tetrad, and the group of diffeomorphisms is replaced by a larger group called the conservation group. This paper extends the geometrical foundation for Pandres' theory by developing an appropriate covariant derivative which is covariant under all local Lorentz (frame) transformations, including complex Lorentz transformations, as well as conservative transformations. After defining this extended covariant derivative, an appropriate Lagrangian and its resulting field equations are derived. As in Pandres' theory, these field equations result in a stress-energy tensor that has terms which may automatically represent the electroweak field. Finally, the theory is extended to include 2-spinors and 4-spinors.

  14. IsoRay Medical William A. Cavanagh

    E-Print Network [OSTI]

    to surgical resection Low dose rate (LDR) Accelerated Partial Breast Irradiation (APBI) with Temporary CesiumIsoRay Medical William A. Cavanagh Vice President of Research and Development IsoRay Medical March experiences that inserting radioactive materials into tumors revealed that radiation caused cancers to shrink

  15. Diagnostic Medical Sonography Clinical Technical Standards

    E-Print Network [OSTI]

    Barrash, Warren

    Diagnostic Medical Sonography Clinical Technical Standards Listed below are the technical standards identified for students in the Diagnostic Medical Sonography (DMS) clinical program. Review each standard and think about your ability to meet the standard 100% or if you are unable to meet the standard, what

  16. Medical Education and the Tyranny of Competency

    E-Print Network [OSTI]

    Aris, John P.

    , concept to use as a guiding motif for professional education.The competency model--which tends to be top of this concept in education lie within the realm of behaviorist ideology (Pearson 1980;Talbot 2004).We are nowMedical Education and the Tyranny of Competency 90 ABSTRACT Those who educate medical students

  17. UF in Brazil Urban, Medical, & Agricultural Entomology

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    UF in Brazil Urban, Medical, & Agricultural Entomology Summer B: August 9 - 21, 2015 Explore aspects in Brazil and the United States. Course Information College of Agricultural and Life Sciences: Urban, Medical and Agricultural Entomology in Brazil Total Number of Credits Offered: 3 About

  18. Bylaws of the Florida Medical Entomology Laboratory

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    1 Bylaws of the Florida Medical Entomology Laboratory University of Florida As Approved: March 16 Laboratory (FMEL) are to attain excellence in teaching, research, extension, and service, and to attain These Bylaws establish the general principles by which the Florida Medical Entomology Laboratory shall

  19. Careers in Medical Physics The ACPSEM

    E-Print Network [OSTI]

    Tobar, Michael

    employs physical concepts for the prevention,diagnosis and treatment of human disease. It is not a new has been a catalyst in the development of modern medicine. Medical Physics has four main specialisedCareers in Medical Physics #12;The ACPSEM The Australasian College of Physical Scientists

  20. eTransform: Transforming Enterprise Data Centers by Automated Consolidation Rahul Singh, Prashant Shenoy

    E-Print Network [OSTI]

    Fisher, Kathleen

    eTransform: Transforming Enterprise Data Centers by Automated Consolidation Rahul Singh, Prashant of applications running on servers housed in tens of data centers geographically spread out. These enterprises and enable easier management. However, the large number of different kinds of applications and data centers