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


1

br Owner br Facility br Type br Capacity br MW br Commercial br Online  

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 CenterFranconia, Virginia:FAQ < RAPID Jump to:SeadovCooperative JumpWilliamsonWoodsonCounty is aYoakumYuHangeZoloFacility br Type br

2

Pet Insurance Veterinary Pet Insurance  

E-Print Network [OSTI]

29 Pet Insurance Veterinary Pet Insurance® Veterinary Pet Insurance® is the nation's oldest, largest and number one veterinarian-recommended pet health insurance provider. With comprehensive plans designed to protect you financially when the unexpected occurs, affordable coverage from VPI® Pet Insurance

Pilyugin, Sergei S.

3

Positron Emission Tomography (PET)  

DOE R&D Accomplishments [OSTI]

Positron emission tomography (PET) assesses biochemical processes in the living subject, producing images of function rather than form. Using PET, physicians are able to obtain not the anatomical information provided by other medical imaging techniques, but pictures of physiological activity. In metaphoric terms, traditional imaging methods supply a map of the body's roadways, its, anatomy; PET shows the traffic along those paths, its biochemistry. This document discusses the principles of PET, the radiopharmaceuticals in PET, PET research, clinical applications of PET, the cost of PET, training of individuals for PET, the role of the United States Department of Energy in PET, and the futures of PET.

Welch, M. J.

1990-01-00T23:59:59.000Z

4

PET Analysis Challenging Problems in PET Imaging  

E-Print Network [OSTI]

PET Analysis Challenging Problems in PET Imaging Estimating the Input Function for a Human Brain FDG-PET Study A Feasibility Study Dr. Hongbin Guo, Prof. Rosemary A. Renaut Department of Mathematics and Statistics,Arizona State Univerisity Dr. Kewei Chen Banner Good Samaritan PET center, Phoenix Supported by

Renaut, Rosemary

5

Policy on Pets on Campus Policy on Pets on Campus  

E-Print Network [OSTI]

Policy on Pets on Campus 10/30/2014 Policy on Pets on Campus I. Purpose and Scope The presence. This policy addresses pets on all property owned and controlled by the university and applies to all students. Policy The University prohibits pets in university-owned or leased buildings, except as provided below

Sridhar, Srinivas

6

Pet Waste Management  

E-Print Network [OSTI]

About 1 million pounds of dog waste is deposited daily in North Texas alone. That's why proper disposal of pet waste can make a big difference in the environment. 5 photos, 2 pages...

Mechell, Justin; Lesikar, Bruce J.

2008-08-28T23:59:59.000Z

7

PET-Recycling Schweiz Naglerwiesenstrasse 4  

E-Print Network [OSTI]

PET-Recycling Schweiz Naglerwiesenstrasse 4 8049 Zurigo Telefono: 044 344 10 80 Fax: 044 344 10 99 E-mail: info@prs.ch www.petrecycling.ch #12;Il PET è un materiale riciclabile. Riciclare PET utilizzato il PET. Riconsegna le bottiglie PET, se no mancano altrove! #12;PET ­ più di un semplice materiale

Krause, Rolf

8

ModPET: A Novel Small-Animal PET System Positron Emission Tomography (PET) and PET/CT systems have become the gold standard for imaging  

E-Print Network [OSTI]

ModPET: A Novel Small-Animal PET System Positron Emission Tomography (PET) and PET/CT systems have these results to their human counterparts. Current small-animal PET scanners are very costly and complicated for Gamma-Ray Imaging, we are developing a novel small-animal PET scanner that utilizes common modular

Arizona, University of

9

Pet Groomer? Check this out....  

E-Print Network [OSTI]

Want to be a Pet Groomer? Check this out.... Costs for Students Registering through UNH Continuing. For more information and an application, contact: Thompson School of Applied Science Pet Grooming Diploma Program in Pet Grooming University of New Hampshire Thompson School of Applied Science Applied Animal

New Hampshire, University of

10

Lanthanum halide scintillators for time-of-flight 3-D pet  

DOE Patents [OSTI]

A Lanthanum Halide scintillator (for example LaCl.sub.3 and LaBr.sub.3) with fast decay time and good timing resolution, as well as high light output and good energy resolution, is used in the design of a PET scanner. The PET scanner includes a cavity for accepting a patient and a plurality of PET detector modules arranged in an approximately cylindrical configuration about the cavity. Each PET detector includes a Lanthanum Halide scintillator having a plurality of Lanthanum Halide crystals, a light guide, and a plurality of photomultiplier tubes arranged respectively peripherally around the cavity. The good timing resolution enables a time-of-flight (TOF) PET scanner to be developed that exhibits a reduction in noise propagation during image reconstruction and a gain in the signal-to-noise ratio. Such a PET scanner includes a time stamp circuit that records the time of receipt of gamma rays by respective PET detectors and provides timing data outputs that are provided to a processor that, in turn, calculates time-of-flight (TOF) of gamma rays through a patient in the cavity and uses the TOF of gamma rays in the reconstruction of images of the patient.

Karp, Joel S. (Glenside, PA); Surti, Suleman (Philadelphia, PA)

2008-06-03T23:59:59.000Z

11

A Pet's Place University of Illinois  

E-Print Network [OSTI]

A Pet's Place University of Illinois College of Veterinary Medicine vetmed Clinic *A Pet's Place Course Records Men: Eric Ollila, 15:54 (1995) Women: Jenny Marine, 19:04 (1994) See like to participate in the: _____5K run _____5K pet run _____5K walk _____5K pet walk Please check one

Jain, Kanti

12

Reconstruction and Restoration of PET Images.  

E-Print Network [OSTI]

Reconstruction and Restoration of PET Images. Ph.D. Thesis Peter Alshede Philipsen LYNGBY 1998 IMM with reconstruction and restoration of Positron Emission Tomography (PET) images carried out at the Section of Digital contains a short introduction to PET imaging. The second part, chapters 2 to 4, describe the PET scanner

Mosegaard, Klaus

13

PET COMPUTER PROGRAMS FOR USE WITH THE 88-INCH CYCLOTRON  

E-Print Network [OSTI]

in PRE . . .. Q ii PET COMPUTER PROGRAMSprograms written for the PET computer which provide anFusion Research Division PET COMPUTER PROGRAMS FOR USE WITH

Gough, R.A.

2010-01-01T23:59:59.000Z

14

Introduction of the Development ofIntroduction of the Development of New PET TracersNew PET Tracers  

E-Print Network [OSTI]

Introduction of the Development ofIntroduction of the Development of New PET TracersNew PET Tracers The Center for Translational Neuroimaging KunKun--EekEek KilKil #12;Principles of PET-1 PET: Positron Emission Tomography #12;Principles of PET-2 Cyclotron Scanner #12;Principles of PET-3 0 0.01 0.02 0.03 0

15

Development of PhytoPET: A plant imaging PET system  

SciTech Connect (OSTI)

The development and initial evaluation of a high-resolution positron emission tomography (PET) system to image the biodistribution of positron emitting tracers in live plants is underway. The positron emitting {sup 11}CO{sub 2} tracer is used in plant biology research investigating carbon sequestration in biomass, optimization of plant productivity and biofuel development. This PhytoPET design allows flexible arrangements of PET detectors based on individual standalone detector modules built from single 5 cm x 5 cm Hamamatsu H8500 position sensitive photomultiplier tubes. Each H8500 is coupled to a LYSO:Ce scintillator array composed of 48 x 48 elements that are 10 mm thick arranged with a 1.0 mm pitch. An Ethernet based 12-bit flash analog to digital data acquisition system with onboard coincident matrix definition is under development to digitize the signals. The detector modules of the PhytoPET system can be arranged and stacked to accommodate various sized plants and plant structures.

Dong, H; Lee, S J; McKisson, J; Xi, W; Zorn, C; Howell, C R; Crowell, A S; Cumberbatch, L; Reid, C D; Smith, M F

2012-02-01T23:59:59.000Z

16

Pets on Campus November 2008  

E-Print Network [OSTI]

on campus property or dogs and other pet animals brought into campus facilities without proper authorization and in campus facilities and does not replace other applicable federal, provincial, and local laws unattended on campus for any period of time. 3. Dogs or other animals may not be intentionally abandoned

17

High energy XeBr electric discharge laser  

DOE Patents [OSTI]

A high energy XeBr laser for producing coherent radiation at 282 nm. The XeBr laser utilizes an electric discharge as the excitation source to minimize formation of molecular ions thereby minimizing absorption of laser radiation by the active medium. Additionally, HBr is used as the halogen donor which undergoes harpooning reactions with Xe.sub.M * to form XeBr*.

Sze, Robert C. (Santa Fe, NM); Scott, Peter B. (Los Alamos, NM)

1981-01-01T23:59:59.000Z

18

J-PET analysis framework for the prototype TOF-PET detector  

E-Print Network [OSTI]

Novel TOF-PET scanner solutions demand, apart from the state of the art detectors, software for fast processing of the gathered data, monitoring of the whole scanner and reconstruction of the PET image. In this article we present an analysis framework for the novel STRIP-PET scanner developed by the J-PET collaboration in the Institute of Physics of the Jagiellonian University. This software is based on the ROOT package used in many particle physics experiments.

Krzemie?, W; Stola, K; Trybek, D; Bednarski, T; Bia?as, P; Czerwi?ski, E; Kap?on, ?; Kochanowski, A; Korcyl, G; Kowal, J; Kowalski, P; Kozik, T; Molenda, M; Moskal, P; Nied?wiecki, Sz; Pa?ka, M; Pawlik, M; Raczy?ski, L; Rudy, Z; Salabura, P; Sharma, N G; S?omski, A; Smyrski, J; Strzelecki, A; Wi?licki, W; Zieli?ski, M; Zo?, N

2013-01-01T23:59:59.000Z

19

Statistical Image Reconstruction Algorithms Using Paraboloidal Surrogates for PET Transmission  

E-Print Network [OSTI]

Statistical Image Reconstruction Algorithms Using Paraboloidal Surrogates for PET Transmission Reconstruction Algorithms Using Paraboloidal Surrogates for PET Transmission Scans by Hakan Erdogan Chair: Jeffrey A. Fessler Positron Emission Tomography (PET) is a diagnostic imaging tool that provides images

Fessler, Jeffrey A.

20

PET Imaging of Nucleoside Metabolism for Individualized Therapy  

E-Print Network [OSTI]

min prior to FLT injection). PET was performed 180 min afterleukemia in C57/BL6 mice. PET was performed 180 min afterHow can we tell if PET imaging for cancer is

Lee, Jason Thanh

2012-01-01T23:59:59.000Z

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


21

Subunit IV-PetL chimeras in cytochrome b6f complex Chimeric fusions of subunit IV and PetL in the b6 f complex of  

E-Print Network [OSTI]

Subunit IV-PetL chimeras in cytochrome b6f complex - 1 - Chimeric fusions of subunit IV and Pet IV-PetL chimeras in cytochrome b6 f complex Additional keywords : PetG, PetM, PetN, transmembrane topology, mass spectrometry, State Transitions, protein phosphorylation. #12;Subunit IV-PetL chimeras

22

Molecular imaging in oncology: the acceptance of PET/CT and the emergence of MR/PET imaging  

E-Print Network [OSTI]

CTComputed tomography . PETPositron Emission Tomography .body imaging with MRI or PET/CT: the future for single-Sollitto RA et al (2009) 18F-FDG PET/CT of transitional cell

Schiepers, Christiaan; Dahlbom, Magnus

2011-01-01T23:59:59.000Z

23

assaying pet targets: Topics by E-print Network  

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

Physics Websites Summary: 2549 Abstract-- In this paper a modular power electronic transformer (PET) for feeding sensitive of the H-bridge cells. The proposed PET can...

24

Does Pet Arrival Trigger Prosocial Behaviors in Individuals with Autism?  

E-Print Network [OSTI]

Does Pet Arrival Trigger Prosocial Behaviors in Individuals with Autism? Marine Grandgeorge1 between the presence or the arrival of pets in families with an individual with autism and the changes of pets - two groups of 12 individuals and two groups of 8 individuals were assigned to: study 1 (pet

Paris-Sud XI, Université de

25

PET functional volume delineation: a robustness and repeatability study  

E-Print Network [OSTI]

1 PET functional volume delineation: a robustness and repeatability study Mathieu Hatt1 , Ph: Robustness of functional volume determination in PET Keywords: PET uptake volume determination, robustness;2 Abstract Purpose: Current state of the art algorithms for functional uptake volume segmentation in PET

Boyer, Edmond

26

Pet Video Chat: Monitoring and Interacting with Dogs over Distance  

E-Print Network [OSTI]

Pet Video Chat: Monitoring and Interacting with Dogs over Distance Abstract Companies are now making video-communication systems that allow pet owners to see, and, in some cases, even interact with their pets when they are separated by distance. Such `doggie cams' show promise, yet it is not clear how pet

Golbeck, Jennifer

27

Prison Pet Partnership Program The Prison Pet Partnership Program rescues and trains homeless animals to provide service dogs for  

E-Print Network [OSTI]

Prison Pet Partnership Program (Ongoing) The Prison Pet Partnership Program rescues and trains skills to women inmates so they can find gainful employment in the pet industry upon release. The Program to service. We value education and growth. We value building partnerships in a community. The Prison Pet

Borenstein, Elhanan

28

Comparison of CT, PET, and PET/CT for Staging of Patients with Indolent Non-Hodgkins Lymphoma  

E-Print Network [OSTI]

B. J. Fueger et al. : PET/CT for indolent lymphoma Table 2.Performance for detection of nodal disease Sensitivity PETCT PET/CT pG0.001 vs PET, CT Specificity pG0.001 vs PET

Fueger, Barbara J.; Yeom, Kristen; Czernin, Johannes; Sayre, James W.; Phelps, Michael E.; Allen-Auerbach, Martin S.

2009-01-01T23:59:59.000Z

29

E-Print Network 3.0 - austin pet centre Sample Search Results  

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

oriented PET centre with a lowmedium energy cyclotron. 12;Cyclotron radionuclide production... PET centre with cyclotron, the Cyclotron and PET Center of Rigshospitalet,...

30

Compton profile study of polycrystalline ZnBr{sub 2}  

SciTech Connect (OSTI)

The first ever Compton profile study of polycrystalline ZnBr{sub 2} is presented in this paper. The measurement of polycrystalline sample of ZnBr{sub 2} is performed using 59.54 keV gamma-rays emanating from an {sup 241}Am radioisotope. Theoretical calculations are performed following the Ionic model calculations for a number of configurations Zn{sup +x}Br{sub 2}{sup -x/2}(0.0{<=}x{<=}2.0 in step of 0.5) utilizing free atom profiles. The ionic model suggest transfer of 2.0 electrons from 4 s state of Zn to 4 p state of two Br atoms. The autocorrelation function B(z) is also derived from experiment and the most favoured ionic valence Compton profiles.

Dhaka, M. S. [Department of Physics, Engineering College Bikaner, Bikaner, 334004, Rajasthan (India); Sharma, G. [Department of Physics, Bansthali University, Bansthali, 304022, Rajasthan (India); Mishra, M. C.; Kothari, R. K.; Sharma, B. K. [Department of Physics, University of Rajasthan, Jaipur, 302004, Rajasthan (India)

2010-12-01T23:59:59.000Z

31

Ca2+-Doped CeBr3 Scintillating Materials  

SciTech Connect (OSTI)

Despite the outstanding scintillation performance characteristics of cerium tribromide (CeBr3) and cerium-activated lanthanum tribromide, their commercial availability and application are limited due to the difficulties of growing large, crack-free single crystals from these fragile materials. This investigation employed aliovalent doping to increase crystal strength while maintaining the optical properties of the crystal. One divalent dopant (Ca2+) was used as a dopant to strengthen CeBr3 without negatively impacting scintillation performance. Ingots containing nominal concentrations of 1.9% of the Ca2+ dopant were grown. Preliminary scintillation measurements are presented for this aliovalently doped scintillator. Ca2+-doped CeBr3 exhibited little or no change in the peak fluorescence emission for 371 nm optical excitation for CeBr3. The structural, electronic, and optical properties of CeBr3 crystals were studied using the density functional theory within the generalized gradient approximation. The calculated lattice parameters are in good agreement with the experimental data. The energy band structures and density of states were obtained. The optical properties of CeBr3, including the dielectric function, were calculated.

Guss, Paul [NSTec; Foster, Michael E. [SNL; Wong, Bryan M. [SNL; Doty, F. Patrick [SNL; Shah, Kanai [RMD; Squillante, Michael R. [RMD; Shirwadkar, Urmila [RMD; Hawrami, Rastgo [RMD; Tower, Josh [RMD; Yuan, Ding [NSTec

2014-01-01T23:59:59.000Z

32

PET  

ScienceCinema (OSTI)

le DG fait l'introduction et laisse la parole plusieurs intervenants au sujet de la physique des particules

None

2011-04-25T23:59:59.000Z

33

Combined PET/MRI scanner  

DOE Patents [OSTI]

A combined PET/MRI scanner generally includes a magnet for producing a magnetic field suitable for magnetic resonance imaging, a radiofrequency (RF) coil disposed within the magnetic field produced by the magnet and a ring tomograph disposed within the magnetic field produced by the magnet. The ring tomograph includes a scintillator layer for outputting at least one photon in response to an annihilation event, a detection array coupled to the scintillator layer for detecting the at least one photon outputted by the scintillator layer and for outputting a detection signal in response to the detected photon and a front-end electronic array coupled to the detection array for receiving the detection signal, wherein the front-end array has a preamplifier and a shaper network for conditioning the detection signal.

Schlyer, David (Bellport, NY); Woody, Craig L. (Setauket, NY); Rooney, William (Miller Place, NY); Vaska, Paul (Sound Beach, NY); Stoll, Sean (Wading River, NY); Pratte, Jean-Francois (Stony Brook, NY); O'Connor, Paul (Bellport, NY)

2007-10-23T23:59:59.000Z

34

E-Print Network 3.0 - animal pet cameras Sample Search Results  

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

<< < 1 2 3 4 5 > >> 1 ModPET: A Novel Small-Animal PET System Positron Emission Tomography (PET) and PETCT systems have become the gold standard for imaging Summary: ModPET:...

35

Matrix isolation and computational study of isodifluorodibromomethane (F{sub 2}CBr-Br): A route to Br{sub 2} formation in CF{sub 2}Br{sub 2} photolysis  

SciTech Connect (OSTI)

The photolysis products of dibromodifluoromethane (CF{sub 2}Br{sub 2}) were characterized by matrix isolation infrared and UV/Visible spectroscopy, supported by ab initio calculations. Photolysis at wavelengths of 240 and 266 nm of CF{sub 2}Br{sub 2}:Ar samples ({approx}1:5000) held at {approx}5 K yielded iso-CF{sub 2}Br{sub 2} (F{sub 2}CBrBr), a weakly bound isomer of CF{sub 2}Br{sub 2}, which is characterized here for the first time. The observed infrared and UV/Visible absorptions of iso-CF{sub 2}Br{sub 2} are in excellent agreement with computational predictions at the B3LYP/aug-cc-pVTZ level. Single point energy calculations at the CCSD(T)/aug-cc-pVDZ level on the B3LYP optimized geometries suggest that the isoform is a minimum on the CF{sub 2}Br{sub 2} potential energy surface, lying some 55 kcal/mol above the CF{sub 2}Br{sub 2} ground state. The energies of various stationary points on the CF{sub 2}Br{sub 2} potential energy surface were characterized computationally; taken with our experimental results, these show that iso-CF{sub 2}Br{sub 2} is an intermediate in the Br+CF{sub 2}Br{yields}CF{sub 2}+Br{sub 2} reaction. The photochemistry of the isoform was also investigated; excitation into the intense 359 nm absorption band resulted in isomerization to CF{sub 2}Br{sub 2}. Our results are discussed in view of the rich literature on the gas-phase photochemistry of CF{sub 2}Br{sub 2}, particularly with respect to the existence of a roaming atom pathway leading to molecular products.

George, Lisa; Kalume, Aimable; Reid, Scott A. [Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53201-1881 (United States); El-Khoury, Patrick Z.; Tarnovsky, Alexander [Department of Chemistry and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403 (United States)

2010-02-28T23:59:59.000Z

36

All ESHP students are required to take PET 4947 (Practicum) and PET 4946 (Internship), which is a progression from a supervised field classroom experience and then a total  

E-Print Network [OSTI]

All ESHP students are required to take PET 4947 (Practicum) and PET 4946 (Internship), which of this content knowledge through practical exams in PET 4550 (Exercise Testing) and in PET 4947 (Practicum are assessed for the communication abilities in the following two ways: 1. A requirement of PET 4947

Fernandez, Eduardo

37

PET radiotracers: crossing the bloodbrain barrier and surviving  

E-Print Network [OSTI]

PET radiotracers: crossing the blood­brain barrier and surviving metabolism Victor W. Pike in the living human brain with positron emission tomography (PET) are increasingly useful in clinical research or undesirable metabolism. These issues are reviewed. Emerging PET radiotracers for measuring efflux transporter

Shen, Jun

38

Hierarchical regularization for edge-preserving reconstruction of PET images  

E-Print Network [OSTI]

Hierarchical regularization for edge-preserving reconstruction of PET images Johnathan M. Bardsley.somersalo@case.edu Abstract. The data in PET emission and transmission tomography and in low dose X-ray tomography, consists that the algorithm gives good quality reconstructions for both emission and transmission PET problems in an efficient

Bardsley, John

39

Parallel algorithm and hybrid regularization for dynamic PET reconstruction  

E-Print Network [OSTI]

Parallel algorithm and hybrid regularization for dynamic PET reconstruction N. Pustelnik, Student Abstract--To improve the estimation at the voxel level in dynamic Positron Emission Tomography (PET in the presence of Poisson noise and it is extended here to (dynamic) space + time PET image reconstruction

Boyer, Edmond

40

www.pet.hw.ac.uk 1 Private and Confidential  

E-Print Network [OSTI]

www.pet.hw.ac.uk 1 Private and Confidential Application for MSc Courses - Supplementary Information of Exam Grade Attained Subjects taken at `O' level or equivalent with grades #12;www.pet.hw.ac.uk 2 of principal & subsidiary subjects Please leave blank for Institute Use #12;www.pet.hw.ac.uk 3 Employment Dates

Painter, Kevin

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


41

PET: Reducing Database Energy Cost via Query Optimization  

E-Print Network [OSTI]

PET: Reducing Database Energy Cost via Query Optimization Zichen Xu The Ohio State University xuz not necessarily have the shortest processing time. This demo proposal introduces PET ­ an energy-aware query op- timization framework that is built as a part of the PostgreSQL ker- nel. PET, via its power cost estimation

Tu, Yicheng

42

Restoring functional PET Images using Anatomical MR Images  

E-Print Network [OSTI]

Restoring functional PET Images using Anatomical MR Images Peter Philipsen, Ulrik Kjems, Peter Toft signal to noise ratio and the low spa­ tial resolution in Positron Emission Tomography (PET) images ? And Positron Emission Tomography (PET) Images? ffl Segmentation of MR Images ­ Extraction of important edges

Mosegaard, Klaus

43

PET/NIR Imaging DOI: 10.1002/ange.201205271  

E-Print Network [OSTI]

PET/NIR Imaging DOI: 10.1002/ange.201205271 Aptamer-Functionalized, Ultra-Small, Monodisperse (PET), and ultrasound and photoacoustic imag- ing.[4b,5b,6] However, each technique has its drawbacks, and none is sufficient to provide all the necessary information for LN assessment.[4b] PET is the most

Cheng, Jianjun

44

Hierarchical regularization for edge-preserving reconstruction of PET images  

E-Print Network [OSTI]

1 Hierarchical regularization for edge-preserving reconstruction of PET images Johnathan M. Bardsley , Daniela Calvetti, and Erkki Somersalo Abstract--The data in PET emission and transmission tomog for both emission and transmission PET problems at very low computational cost. Index Terms

Bardsley, John

45

Joint estimation of attenuation and emission images from PET scans  

E-Print Network [OSTI]

Joint estimation of attenuation and emission images from PET scans Hakan Erdogan and Jeffrey A Motivation · Attenuation correction needed for quantitatively accurate PET · Post-injection transmission scans necessitated by whole-body PET Inject (in waiting room) Radioisotope Uptake 40-60 minutes 10

Fessler, Jeffrey A.

46

Using Functional Languages in Formal Methods: The Pet System  

E-Print Network [OSTI]

Using Functional Languages in Formal Methods: The Pet System Elsa L. Gunter and Doron A. Peled Bell language for the back­end of our new Path Exploration Tool (Pet) [2]. This tool is intended for interactive testing of sequential and concur­ rent software. The main calculation performed by Pet is the symbolic

Peled, Doron A.

47

PET Evaluation of Novel Radiofluorinated Reboxetine Analogs as Norepinephrine  

E-Print Network [OSTI]

PET Evaluation of Novel Radiofluorinated Reboxetine Analogs as Norepinephrine Transporter Probes transporter; PET; monkey; reboxetine; FMeNER; FMeNER-D2 ABSTRACT (S,S)-2-( -(2-Fluoromethoxyphenoxy]FMeNER into cynomolgus monkey, PET examination with the head in the field of view revealed skull- bound radioactivity

Shen, Jun

48

Some proximal methods for CBCT and PET S. Anthoine 1  

E-Print Network [OSTI]

Some proximal methods for CBCT and PET tomography S. Anthoine 1 , J.-F. Aujol 2 , Y. Boursier 3 , C) and Positron Emission To- mography (PET) are two complementary medical imaging modalities providing-rays for CBCT and radiotracer for PET. Two demonstrators based on a technological breakthrough (acquisition

Paris-Sud XI, Université de

49

Recovery of Dynamic PET Regions via Simultaneous Segmentation and Deconvolution  

E-Print Network [OSTI]

Recovery of Dynamic PET Regions via Simultaneous Segmentation and Deconvolution Benjamin Smith1 and deconvolution of dynamic PET images. By incorporating the PSF of the imaging system into our segmentation model effect. We show improved segmentation results, and outperform two state-of-the-art dynamic PET

Möller, Torsten

50

Registration of PET and MR hand volumes using Bayesian Networks  

E-Print Network [OSTI]

Registration of PET and MR hand volumes using Bayesian Networks Derek Magee1 , Steven Tanner1 is presented. PET and MR scans are aligned by optimising the configuration of a tube based model using a set to study the use of high-resolution HIDAC PET imagery in investigating bone growth and erosion in arthritis

Magee, Derek

51

Diploma Program in Pet Grooming University of New Hampshire  

E-Print Network [OSTI]

Diploma Program in Pet Grooming University of New Hampshire Thompson School of Applied Science Applied Animal Science Curriculum The Thompson School has developed a program leading to a Diploma in Pet-oriented programs which provide a combination of academic and practical hands-on education. This Pet Grooming

New Hampshire, University of

52

Delayed neutron energy spectra of {sup 87}Br, {sup 88}Br, {sup 89}Br, {sup 90}Br, {sup 137}I, {sup 138}I, {sup 139}I, and {sup 186}Te  

SciTech Connect (OSTI)

In prior publications, the authors reported measurements of the energy spectra of delayed neutrons for the isotope-separated fission product precursors {sup 93}Rb, {sup 94}Rb, {sup 95}Rb, {sup 96}Rb, {sup 97}Rb, {sup 143}Cs, {sup 144}Cs, and {sup 145}Cs. Such studies of delayed neutron energy spectra have important applications in reactor physics, primarily relating to the fundamental role played by delayed neutrons in the kinetic behavior of nuclear reactors. Measurement of the energy spectra of delayed neutrons for the isotope-separated, fission product precursors {sup 87}Br, {sup 88}Br, {sup 89}Br, {sup 90}Br, {sup 137}I, {sup 138}I, {sup 139}I, and {sup 136}Te are reported for an energy range up to 1,213 keV and with lower cutoff energies of 11.1, 11.1, 29.9, 48.9, 14.2, 23.3, 29.9, and 48.9 keV, respectively. These data were obtained at the TRISTAN Isotope Separation On-Line facility using H{sub 2} and CH{sub 4} gas-filled proportional counters. The data for each of the bromine, iodine, and tellurium isotopes show good qualitative agreement with the published {sup 3}He ionization chamber data at energies above {approximately}200 keV. In addition, they provide definitive spectral information down to their respective cut-off energies.

Greenwood, R.C.; Watts, K.D. [Lockheed Idaho Technologies Co., Idaho Falls, ID (United States). Idaho National Engineering Lab.

1997-07-01T23:59:59.000Z

53

Refractive indexes of aqueous LiBr solutions  

SciTech Connect (OSTI)

This paper reports that the refractive indexes of water-lithium bromide solutions were measured in the temperature range from 5.0 to 80.0 {degrees}C and in the range of salt concentrations from 0.00 (deionized water) to 58.90 mass %. An electrolyte solution of LlBr in water was chosen for study because of its wide use as an absorption chiller fluid. The concentration of LlBr aqueous solution was determined by argentimetric titration using tetrabromofluoresceln (Eosin) as an adsorption indicator and was checked at a few discrete concentrations (10.06, 20.30, and 58.90 mass % LlBr) against the values obtained by gravimetric analysis. The deviation between values obtained using these two techniques was found to be less than 0.27 mass %. The refractive indexes are shown to represent a reliable and convenient way of measuring the concentration of salt (or water) in LlBr solutions with accuracies of {plus minus}0.3 mass % salt.

Zaltash, A.; Ally, M.R. (Energy Div., Oak Ridge National Lab., Oak Ridge, TN (US))

1992-01-01T23:59:59.000Z

54

Attenuation map reconstruction from TOF PET data  

E-Print Network [OSTI]

To reconstruct a radioactive tracer distribution with positron emission tomography (PET), the background attenuation correction is needed to eliminate image artifacts. Recent research shows that time-of-flight (TOF) PET data determine the attenuation sinogram up to a constant, and its gradient can be computed using an analytic algorithm. In this paper, we study a direct estimation of the sinogram only from TOF PET data. First, the gradient of the attenuation sinogram is estimated using the aforementioned algorithm. Then, a relationship is established to link the differential attenuation sinogram and the underlying attenuation background. Finally, an iterative algorithm is designed to determine the attenuation sinogram accurately and stably. A 2D numerical simulation study is conducted to verify the correctness of our proposed approach.

Yang, Qingsong; Wang, Ge

2013-01-01T23:59:59.000Z

55

PRODUCTION CONSIDERATIONS FOR THE CLASSICAL PET NUCLIDES.  

SciTech Connect (OSTI)

Nuclear Medicine is the specialty of medical imaging, which utilizes a variety of radionuclides incorporated into specific compounds for diagnostic imaging and therapeutic applications. During recent years, research efforts associated with this discipline have concentrated on the decay characteristics of particular radionuclides and the design of unique radiolabeled tracers necessary to achieve time-dependent molecular images. The specialty is expanding with specific Positron emission tomography (PET) and SPECT radiopharmaceuticals allowing for an extension from functional process imaging in tissue to pathologic processes and nuclide directed treatments. PET is an example of a technique that has been shown to yield the physiologic information necessary for clinical oncology diagnoses based upon altered tissue metabolism. Most PET drugs are currently produced using a cyclotron at locations that are in close proximity to the hospital or academic center at which the radiopharmaceutical will be administered. In November 1997, a law was enacted called the Food and Drug Administration Modernization Act of 1997 which directed the Food and Drug Administration (FDA) to establish appropriate procedures for the approval of PET drugs in accordance with section 505 of the Federal Food, Drug, and Cosmetic Act and to establish current good manufacturing practice requirements for such drugs. At this time the FDA is considering adopting special approval procedures and cGMP requirements for PET drugs. The evolution of PET radiopharmaceuticals has introduced a new class of ''drugs'' requiring production facilities and product formulations that must be closely aligned with the scheduled clinical utilization. The production of the radionuclide in the appropriate synthetic form is but one critical component in the manufacture of the finished radiopharmaceutical.

FINN,R.; SCHLYER,D.

2001-06-25T23:59:59.000Z

56

Vanderbilt University Pet Policy for Live-in Employees Vanderbilt University permits live-in employees, be they faculty or staff, to own and keep pets  

E-Print Network [OSTI]

1 Vanderbilt University Pet Policy for Live-in Employees Vanderbilt pets in their University assigned housing. The requirements of the policy are as follows: 1. Pets are limited to domesticated dogs, domesticated cats and fish

Bordenstein, Seth

57

Analysis framework for the J-PET scanner  

E-Print Network [OSTI]

J-PET analysis framework is a flexible, lightweight, ROOT-based software package which provides the tools to develop reconstruction and calibration procedures for PET tomography. In this article we present the implementation of the full data-processing chain in the J-PET framework which is used for the data analysis of the J-PET tomography scanner. The Framework incorporates automated handling of PET setup parameters' database as well as high level tools for building data reconstruction procedures. Each of these components is briefly discussed.

Krzemie?, W; Gruntowski, A; Stola, K; Trybek, D; Bednarski, T; Bia?as, P; Czerwi?ski, E; Kami?ska, D; Kap?on, L; Kochanowski, A; Korcyl, G; Kowal, J; Kowalski, P; Kozik, T; Kubicz, E; Moskal, P; Nied?wiecki, Sz; Pa?ka, M; Raczy?ski, L; Rudy, Z; Salabura, P; Sharma, N G; Silarski, M; S?omski, A; Smyrski, J; Strzelecki, A; Wieczorek, A; Wi?licki, W; Zieli?ski, M; Zo?, N

2015-01-01T23:59:59.000Z

58

Longpath DOAS observations of surface BrO at Summit, Greenland  

E-Print Network [OSTI]

surface BrO at Summit, Greenland J. Stutz 1 , J. L. Thomasimpact of BrO at Summit, Greenland in 2007 and 2008, Atmos.of peroxy radicals at Summit, Greenland during summer 2003,

2011-01-01T23:59:59.000Z

59

Comparison of CsBr and KBr coated Cu photocathodes: Effects of...  

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

Comparison of CsBr and KBr coated Cu photocathodes: Effects of laser irradiation and work function changes. Abstract: Thin films (7 nm layers) of CsBr and KBr were deposited...

60

Guide to Developing Air-Cooled Lithium Bromide (LiBr) Absorption...  

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

Guide to Developing Air-Cooled Lithium Bromide (LiBr) Absorption for CHP Applications, April 2005 Guide to Developing Air-Cooled Lithium Bromide (LiBr) Absorption for CHP...

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


61

Miniature 'Wearable' PET Scanner Ready for Use  

ScienceCinema (OSTI)

Scientists from BNL, Stony Brook University, and collaborators have demonstrated the efficacy of a "wearable," portable PET scanner they've developed for rats. The device will give neuroscientists a new tool for simultaneously studying brain function and behavior in fully awake, moving animals.

Paul Vaska

2013-07-22T23:59:59.000Z

62

The decay of a new nuclide /sup 71/Br  

E-Print Network [OSTI]

The decay of mass-separated samples of the previously unknown nuclide /sup 71/Br have been investigated by means of the Chalk River on-line isotope separator. Eleven gamma -transitions were assigned to the decay of this nuclide and its half-life was measured to be 21.4+or-0.6 s. A simple decay scheme for /sup 71/Br has been constructed incorporating six levels in its daughter, /sup 71/Se. The half-life of the first excited state in /sup 71/Se was measured to be 5.5+or-1.0 mu s and the transition from this state to the ground state was found to be highly converted. Systematic trends in the level schemes of /sup 67 /Zn, /sup 69/Ge and /sup 71/Se are investigated. (16 refs).

Hagberg, E; Evans, H C; Hardy, J C; Koslowsky, V T; Schmeing, H; Schrewe, U J; Sharma, K S

1981-01-01T23:59:59.000Z

63

Comparison of CeBr3 with LaBr3:Ce, LaCl3:Ce, and NaI:Tl Detectors  

SciTech Connect (OSTI)

Energy resolution and detection efficiency were compared between two sizes of cerium bromide (CeBr3) scintillators, three sizes of lanthanum bromide (LaBr3:Ce) scintillators, three sizes of sodium iodide (NaI:Tl) scintillators, and a lanthanum chloride (LaCl3:Ce) scintillator. Comparisons are made of key parameters such as energy resolution, detection efficiency, linearity, and self-activity of CeBr3, LaBr3:Ce, LaCl3:Ce, and NaI:Tl scintillator detectors. The scintillator detectors are tested by comparing the peak separation and identification in the energy range up to 3.0 MeV using 133Ba, 152Eu, and naturally occurring radioactive materials [1]. The study has shown that CeBr3 scintillator detectors provided by Saint-Gobain offer better resolution than NaI:Tl scintillator detectors. CeBr3 detectors could resolve some closely spaced peaks from 133Ba and 152Eu, which NaI:Tl could not. LaBr3:Ce has slightly better resolution, and a slightly higher efficiency than CeBr3. In this work, self-activity of each of these four detector types was measured by operating the detectors themselves. A comparison of the intrinsic activity for all of the detectors in this study is demonstrated. For CeBr3, the self-activity present may be reduced, or even eliminated in the future, through improved processes for growing the material. It will be discussed if, and under what conditions, CeBr3 may be better than LaBr3:Ce and LaCl3:Ce for detection of certain special nuclear material ?-rays [2]. An overall advantage of CeBr3 detectors over lanthanum halide and NaI:Tl detectors will be discussed.

,

2010-09-01T23:59:59.000Z

64

PET IMAGE RECONSTRUCTION USING ANATOMICAL INFORMATION THROUGH MUTUAL INFORMATION BASED PRIORS: A SCALE SPACE APPROACH  

E-Print Network [OSTI]

PET IMAGE RECONSTRUCTION USING ANATOMICAL INFORMATION THROUGH MUTUAL INFORMATION BASED PRIORS prior for incorpo- rating information from co-registered anatomical images into PET image reconstruction using mutual information based rigid registration. PET data are then simulated from the au

Rangarajan, Anand

65

Statistical Tomographic Image Reconstruction Methods for Randoms-Precorrected PET Measurements  

E-Print Network [OSTI]

Statistical Tomographic Image Reconstruction Methods for Randoms-Precorrected PET Measurements-Precorrected PET Measurements by Mehmet Yavuz Chair: Jeffrey A. Fessler Medical imaging systems such as positron emission tomography (PET) and electron- ically collimated single positron emission tomography (SPECT

Fessler, Jeffrey A.

66

E-Print Network 3.0 - animal dedicated pet Sample Search Results  

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

Pubmed 4. Herschman HR... -838-5889; Fax: 716-838-4918 microPET: Positron Emission Tomography Imaging for Small Animals microPET... APPLICATIONS microPET ... Source: Krovi,...

67

Natural Organobromine in Marine Sediments: New Evidence of Biogeochemical Br Cycling  

SciTech Connect (OSTI)

Organobromine (Br{sub org}) compounds, commonly recognized as persistent, toxic anthropogenic pollutants, are also produced naturally in terrestrial and marine systems. Several enzymatic and abiotic bromination mechanisms have been identified, as well as an array of natural Br{sub org} molecules associated with various marine organisms. The fate of the carbon-bromine functionality in the marine environment, however, remains largely unexplored. Oceanographic studies have noted an association between bromine (Br) and organic carbon (C{sub org}) in marine sediments. Even so, there has been no direct chemical evidence that Br in the sediments exists in a stable form apart from inorganic bromide (Br{sub inorg}), which is widely presumed conservative in marine systems. To investigate the scope of natural Br{sub org} production and its fate in the environment, we probed Br distribution and speciation in estuarine and marine sediments using in situ X-ray spectroscopy and spectromicroscopy. We show that Br{sub org} is ubiquitous throughout diverse sedimentary environments, occurring in correlation with C{sub org} and metals such as Fe, Ca, and Zn. Analysis of sinking particulate carbon from the seawater column links the Br{sub org} observed in sediments to biologically produced Br{sub org} compounds that persist through humification of natural organic matter (NOM). Br speciation varies with sediment depth, revealing biogeochemical cycling of Br between organic and inorganic forms as part of the burial and degradation of NOM. These findings illuminate the chemistry behind the association of Br with Corg in marine sediments and cast doubt on the paradigmatic classification of Br as a conservative element in seawater systems.

A Leri; J Hakala; M Marcus; A Lanzirotti; C Reddy; S Myneni

2011-12-31T23:59:59.000Z

68

The Importance of Wellness Examinations for Your Exotic Pet Birds, reptiles, and small pet mammals, such as ferrets, rabbits, guinea pigs, chinchillas, rodents,  

E-Print Network [OSTI]

The Importance of Wellness Examinations for Your Exotic Pet Birds, reptiles, and small pet mammals the health of the animal. Many of these exotic pets have specific nutritional or environmental requirements that many pet owners do not provide. They are unable to provide these needs either because they are simply

69

PET/CT shielding design comparisons  

E-Print Network [OSTI]

moving through the gantry (with permission from Bushong 2001). 7 Positron Emission Tomography (PET) is a noninvasive diagnostic imaging tool that takes advantage of certain radiopharmaceuticals and allows abnormal metabolic... activity in and around organs to be examined by injection of a radionuclide into a patient (Radiology 2006). These radiopharmaceuticals, biological compounds linked to radiation-emitting radionuclides, can in some cases be tailored for concentration...

Coker, Audra Lee

2007-09-17T23:59:59.000Z

70

Lifetimes of N = Z Nuclei As-66 and Br-70  

E-Print Network [OSTI]

coupling constant Gz of nuclear beta decay to the Fermi coupling constant Gz determined from muon decay, after correcting Gz for "inner" radia- tive effects' that depend upon the assumed substructure of the nucleon. An accurate determination of U... measured. As a first step in an effort to extend our knowledge of superallowed Fermi decays to higher Z systems, we have remeasured the half lives of As and Br, using a detection system that is subject to different systematic efFects from those...

Burch, R. H.; Gagliardi, Carl A.; Tribble, Robert E.

1988-01-01T23:59:59.000Z

71

PET-Related Bibliography. Organized by topic. Biased toward PET. Slightly annotated. Hardly complete.  

E-Print Network [OSTI]

. CTI ECAT/953B 3. CTI EXACT HR+ 4. CTI HR++ II. PET studies A. F-DOPA B. Dosimetry, dosimetry C. [C-11 on Fully Three-Dimensional Reconstruction in Radiology and Nuclear Medicine, Aix-les-Bains, France, pp.67 and Validation", Proc. for 1997 Conference on Fully 3D Image Reconstruction for Radiology and Nuclear Medicine

Oakes, Terry

72

DEPARTMENT On the Web Exotic Pets: Health and  

E-Print Network [OSTI]

DEPARTMENT On the Web Exotic Pets: Health and Safety Issues for Children and Parents Kristine M pets, children, health, education, Web In the United States, persons in nearly 28 million households, or preparation of this manuscript. Conflicts of interest: None to report. Disclaimer: Reference to a Web site

Smith, Kate

73

animal pet imaging: Topics by E-print Network  

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

animal pet imaging First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Wesleyan University Policy on Pets,...

74

animal pet imager: Topics by E-print Network  

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

animal pet imager First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Wesleyan University Policy on Pets,...

75

Restoring functional PET Images using Anatomical MR Images  

E-Print Network [OSTI]

Restoring functional PET Images using Anatomical MR Images Peter Alshede Philipsen, Ulrik Kjems,uk,pto,lkh@imm.dtu.dk Abstract In this paper we present a Bayesian method to enhance functional 3D PET images using apriori as a true PET­MR result, and further more show how to obtain the desired information from the MR images. 1

Mosegaard, Klaus

76

animal 18ffdg pet: Topics by E-print Network  

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

animal 18ffdg pet First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Wesleyan University Policy on Pets,...

77

Babcock and Wilcox BR-100 100-ton rail/barge spent fuel shipping cask  

SciTech Connect (OSTI)

This Preliminary Design Report (PDR) provides a detailed description of the design, analyses, and testing programs for the BR-100 cask. The BR-100 is a Type B(U) cask designed for transport by rail or barge. This report presents the preliminary analyses and tests which have been performed for the BR-100 and outlines the confirmatory analyses and tests which will be performed.

none,

1990-02-01T23:59:59.000Z

78

Solvent dependent branching between C-I and C-Br bond cleavage following 266 nm excitation of CH{sub 2}BrI  

SciTech Connect (OSTI)

It is well known that ultraviolet photoexcitation of halomethanes results in halogen-carbon bond cleavage. Each halogen-carbon bond has a dominant ultraviolet (UV) absorption that promotes an electron from a nonbonding halogen orbital (n{sub X}) to a carbon-halogen antibonding orbital (?*{sub C-X}). UV absorption into specific transitions in the gas phase results primarily in selective cleavage of the corresponding carbon-halogen bond. In the present work, broadband ultrafast UV-visible transient absorption studies of CH{sub 2}BrI reveal a more complex photochemistry in solution. Transient absorption spectra are reported spanning the range from 275 nm to 750 nm and 300 fs to 3 ns following excitation of CH{sub 2}BrI at 266 nm in acetonitrile, 2-butanol, and cyclohexane. Channels involving formation of CH{sub 2}Br + I radical pairs, iso-CH{sub 2}Br-I, and iso-CH{sub 2}I-Br are identified. The solvent environment has a significant influence on the branching ratios, and on the formation and stability of iso-CH{sub 2}Br-I. Both iso-CH{sub 2}Br-I and iso-CH{sub 2}I-Br are observed in cyclohexane with a ratio of ?2.8:1. In acetonitrile this ratio is 7:1 or larger. The observation of formation of iso-CH{sub 2}I-Br photoproduct as well as iso-CH{sub 2}Br-I following 266 nm excitation is a novel result that suggests complexity in the dissociation mechanism. We also report a solvent and concentration dependent lifetime of iso-CH{sub 2}Br-I. At low concentrations the lifetime is >4 ns in acetonitrile, 1.9 ns in 2-butanol and ?1.4 ns in cyclohexane. These lifetimes decrease with higher initial concentrations of CH{sub 2}BrI. The concentration dependence highlights the role that intermolecular interactions can play in the quenching of unstable isomers of dihalomethanes.

Anderson, Christopher P.; Spears, Kenneth G.; Wilson, Kaitlynn R.; Sension, Roseanne J. [Department of Chemistry and Department of Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States)] [Department of Chemistry and Department of Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States)

2013-11-21T23:59:59.000Z

79

Optical characteristics of a HgBr excilamp  

SciTech Connect (OSTI)

Optical characteristics of a coaxial HgBr excilamp on multicomponent mercury dibromide vapour mixtures with helium, nitrogen and sulfur hexafluoride are investigated under pumping by a pulse-periodic barrier discharge. Stable excilamp operation was demonstrated at a pump pulse repetition rate of 3 9 kHz. The component composition of the working system was determined, which provides a maximal average and pulsed specific radiation power of 48.8 mW cm{sup -3} and 40.6 W cm{sup -3}, respectively, at the efficiency of 7.3 % in the blue-green spectral range with the maximal radiation intensity at the wavelength of 502 nm. The reduction in the radiation power after 2.5 10{sup 6} shots is 5 %. Interpretation is given for the results of optimisation of excilamp characteristics. (optical radiation sources)

Malinina, A A; Malinin, A N; Shuaibov, A K [Uzhgorod National University, Uzhgorod (Ukraine)

2013-08-31T23:59:59.000Z

80

Bottled drinking water: water contamination from bottle materials (glass, hard PET, soft PET), the influence of colour and acidification  

E-Print Network [OSTI]

Bottled drinking water: water contamination from bottle materials (glass, hard PET, soft PET in glass at pH 3.5). None of the leachates approaches the maximum concentrations for drinking water- QMS) in 294 samples of the same bottled water (predominantly mineral water) sold in the European Union

Filzmoser, Peter

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


81

Chemical migration in drinking water stored in polyethylene terephthalate (PET) bottles: a source of controversy.  

E-Print Network [OSTI]

may be present in a PET bottle wall. Also, recycled PET can be a source of unknown chemical compounds1 Chemical migration in drinking water stored in polyethylene terephthalate (PET) bottles: a source;2 Abstract: Due to its chemical inertness and physical properties PET is particularly suitable for food

Paris-Sud XI, Université de

82

AUTOMATIC HOT SPOT DETECTION AND SEGMENTATION IN WHOLE BODY FDG-PET IMAGES Haiying Guan1  

E-Print Network [OSTI]

AUTOMATIC HOT SPOT DETECTION AND SEGMENTATION IN WHOLE BODY FDG-PET IMAGES Haiying Guan1 , Toshiro a system for automatic hot spots detection and segmentation in whole body FDG-PET images. The main in clinical PET images. 1.INTRODUCTION Positron emission tomography (PET) using fluorine-18 de- oxyglucose

California at Santa Barbara, University of

83

The Octagonal PET II: The Topology of the Richard Evan Schwartz  

E-Print Network [OSTI]

The Octagonal PET II: The Topology of the Limit Sets Richard Evan Schwartz September 29, 2012 arise in these PETs. 1 Introduction 1.1 Background A polytope exchange transformation (or PET simplest examples of PETs are 1-dimensional systems, known as in- terval exchange transformations (or IETs

Schwartz, Richard Evan

84

Denoising of PET images by combining wavelets and curvelets for improved preservation of resolution and quantitation  

E-Print Network [OSTI]

1 Denoising of PET images by combining wavelets and curvelets for improved preservation of Positron Emission Tomography (PET) images is a challenging task due to the inherent low signal evaluation of Positron Emission Tomography (PET) images often involve pre- processing steps. As PET images

Paris-Sud XI, Université de

85

Improved Imaged-derived Input Function for Study of Human Brain FDG-PET  

E-Print Network [OSTI]

Improved Imaged-derived Input Function for Study of Human Brain FDG-PET Hongbin Guo, Rosemary tomography (PET) studies. Two time windows can be recognized in the time activity curve measured from the compartmental model for FDG PET [5]. Index Terms Quantification of FDG PET, Automated Image-derived input

Renaut, Rosemary

86

Listmode-Driven Optimal Gating (OG) Respiratory Motion Management: Potential Impact On Quantitative PET Imaging  

E-Print Network [OSTI]

PET Imaging K Lee*, D Hristov , Radiation Oncology, Stanford University School of Medicine, Palo Alto PET imaging. Methods: During the PET acquisitions, an optical camera tracked and recorded the motion of a tool placed on top of patients' torso. PET event data were utilized to detect and derive a motion

Kay, Mark A.

87

High-Resolution PET Detector. Final report  

SciTech Connect (OSTI)

The objective of this project was to develop an understanding of the limits of performance for a high resolution PET detector using an approach based on continuous scintillation crystals rather than pixelated crystals. The overall goal was to design a high-resolution detector, which requires both high spatial resolution and high sensitivity for 511 keV gammas. Continuous scintillation detectors (Anger cameras) have been used extensively for both single-photon and PET scanners, however, these instruments were based on NaI(Tl) scintillators using relatively large, individual photo-multipliers. In this project we investigated the potential of this type of detector technology to achieve higher spatial resolution through the use of improved scintillator materials and photo-sensors, and modification of the detector surface to optimize the light response function.We achieved an average spatial resolution of 3-mm for a 25-mm thick, LYSO continuous detector using a maximum likelihood position algorithm and shallow slots cut into the entrance surface.

Karp, Joel

2014-03-26T23:59:59.000Z

88

Cu-X-bpy (X ) Cl, Br; bpy ) 4,4-bipyridine) Coordination Polymers: The Stoichiometric  

E-Print Network [OSTI]

the product formation, their structures and topology. Experimental Section Chemicals and Reagents. All with water and acetone and dried in air. I was isolated as a single-phase product. Synthesis of 2 [Cu2Br2 chemicals were used as purchased without further purification, including CuCl2,2H2O (99+%, Aldrich), CuBr2

Li, Jing

89

STRIP-PET: a novel detector concept for the TOF-PET scanner  

E-Print Network [OSTI]

We briefly present a design of a new PET scanner based on strips of polymer scintillators arranged in a barrel constituting a large acceptance detector. The solution proposed is based on the superior timing properties of the polymer scintillators. The position and time of the reaction of the gamma quanta in the detector material will be determined based on the time of arrival of light signals to the edges of the scintillator strips.

Moskal, P; Bia?as, P; Ciszewska, M; Czerwi?ski, E; Heczko, A; Kajetanowicz, M; Kap?on, ?; Kochanowski, A; Konopka-Cupia?, G; Korcyl, G; Krzemie?, W; ?ojek, K; Majewski, J; Migda?, W; Molenda, M; Nied?wiecki, Sz; Pa?ka, M; Rudy, Z; Salabura, P; Silarski, M; S?omski, A; Smyrski, J; Zdebik, J; Zieli?ski, M

2013-01-01T23:59:59.000Z

90

Intrinsic Radiation in Lutetium Based PET Detector: Advantages and Disadvantages  

E-Print Network [OSTI]

Lutetium (Lu) based scintillators such as LSO and LYSO, are widely used in modern PET detectors due to their high stopping power for 511 keV gamma rays, high light yield and short decay time. However, 2.6% of naturally occurring Lu is 176Lu, a long-lived radioactive element including a beta decay and three major simultaneous gamma decays. This phenomenon introduces random events to PET systems that affects the system performance. On the other hand, the advantages of intrinsic radiation of 176Lu (IRL) continues to be exploited. In this paper, research literatures about IRL in PET detectors are reviewed. Details about the adverse effects of IRL to PET and their solutions, as well as the useful applications are presented and discussed.

Wei, Qingyang

2015-01-01T23:59:59.000Z

91

Modeling of material response during fiber drawing of semicrystalline pet  

E-Print Network [OSTI]

has been made for more general conditions. This is due in part to the complexity of polymeric behavior. In this work, experimental results of uniaxial extension tests on Polyethylene terephthalate (PET) were obtained from Dr. S.Bechtel, were analyzed...

Yadav, Seemant

2007-09-17T23:59:59.000Z

92

TOF-PET Imaging within the Framework of Sparse Reconstruction  

E-Print Network [OSTI]

Recently, the limited-angle TOF-PET system has become an active topic mainly due to the considerable reduction of hardware cost and potential applicability for performing needle biopsy on patients while in the scanner. However, this kind...

Lao, Dapeng

2012-07-16T23:59:59.000Z

93

Model Error Correction for Linear Methods in PET Neuroreceptor Measurements  

E-Print Network [OSTI]

Model Error Correction for Linear Methods in PET Neuroreceptor Measurements Hongbin Guo address: hguo1@asu.edu (Hongbin Guo) Preprint submitted to NeuroImage December 11, 2008 #12;reached. A new

Renaut, Rosemary

94

Studies on Ca2+-Doped CeBr3 Scintillating Materials  

SciTech Connect (OSTI)

Despite the outstanding scintillation performance characteristics of cerium tribromide (CeBr3) and cerium-activated lanthanum tribromide (LaBr3:Ce), their commercial availability and application is limited due to the difficulties of growing large, crack-free single crystals from these fragile materials. The objective of this investigation was to employ aliovalent doping to increase crystal strength while maintaining the optical properties of the crystal. One divalent dopant (Ca2+) was investigated as a dopant to strengthen CeBr3 without negatively impacting scintillation performance. Ingots containing nominal concentrations of 1.9% of the Ca2+ dopant were grown. Preliminary scintillation measurements are presented for this aliovalently doped scintillator. Ca2+-doped CeBr3 exhibited little or no change in the peak fluorescence emission for 371 nm optical excitation for CeBr3. The structural, electronic, and optical properties of CeBr3 crystals were investigated using the density functional theory within generalized gradient approximation. The calculated lattice parameters are in good agreement with the experimental data. The energy band structures and density of states were obtained. The optical properties of CeBr3, including the dielectric function, were calculated.

Guss, P. [NSTec; Foster, M. E. [SNL; Wong, B. M. [SNL; Doty, F. P. [SNL; Shah, K. [RMD; Squillante, M. [RMD; Glodo, J. [RMD; Yuan, D. [NSTec

2013-07-03T23:59:59.000Z

95

Studies on Ca2+-Doped CeBr3 Scintillating Materials  

SciTech Connect (OSTI)

Despite the outstanding scintillation performance characteristics of cerium tribromide (CeBr3) and cerium-activated lanthanum tribromide (LaBr3:Ce), their commercial availability and application is limited due to the difficulties of growing large, crack-free single crystals from these fragile materials. The objective of this investigation was to employ aliovalent doping to increase crystal strength while maintaining the optical properties of the crystal. One divalent dopant (Ca2+) was investigated as a dopant to strengthen CeBr3 without negatively impacting scintillation performance. Ingots containing nominal concentrations of 1.9% of the Ca2+ dopant were grown. Preliminary scintillation measurements are presented for this aliovalently doped scintillator. Ca2+-doped CeBr3 exhibited little or no change in the peak fluorescence emission for 371 nm optical excitation for CeBr3. The structural, electronic, and optical properties of CeBr3 crystals were investigated using the density functional theory within generalized gradient approximation. The calculated lattice parameters are in good agreement with the experimental data. The energy band structures and density of states were obtained. The optical properties of CeBr3, including the dielectric function, were calculated.

Guss, P. [NSTec; Foster, M. E. [SNL; Wong, B. M. [SNL; Doty, F. P. [SNL; Shah, K. [RMD; Squillante, M. R. [RMD; Shirwadkar, U. [RMD; Hawrami, R. [RMD; Tower, J. [RMD; Yuan, D. [NSTec

2013-09-01T23:59:59.000Z

96

CeBr3 as a High-Resolution Gamma-Ray Detector  

SciTech Connect (OSTI)

Lanthanum halide (LaBr3:Ce) scintillators have been well-documented as high-resolution gamma-ray detectors that are operated at room temperature. These scintillators have better resolution (<3% at 662 keV) relative to sodium iodide (NaI(Tl)) scintillators (7% at 662 keV), but the naturally occurring radioactive isotope 138La causes self-activity in the crystal that occludes portions of the gamma-ray spectrum. This selfactivity limits the use of LaBr3:Ce in high-sensitivity applications. Cerium, the dopant in the LaBr3:Ce matrix possesses useful scintillation properties, and its selfactivity is on the order of 3750 times less than La; however, Ce has not been fully characterized as the chief component in a scintillation detector. This work investigated Ce as the key scintillation matrix component in a scintillation detector with the hypothesis that CeBr3 promises energy resolution comparable or superior to LaBr3:Ce. The researchers involved with this work believe that CeBr3 may be the answer to obtaining high-temperature, high-resolution spectra with greater sensitivity than LaBr3:Ce.

Michael Reed, Paul Guss, Christopher Contreras

2008-11-13T23:59:59.000Z

97

ELIXYS - a fully automated, three-reactor high-pressure radiosynthesizer for development and routine production of diverse PET tracers.  

E-Print Network [OSTI]

cancer treatment with PET/CT: does it make a difference? Jfor decentralized production of PET tracers. In Positronprobes FMAU, FHBG, and FHPG as PET imaging agents for HSV1-

2013-01-01T23:59:59.000Z

98

High-resolution 18F-FDG PET with MRI for monitoring response to treatment in rheumatoid arthritis  

E-Print Network [OSTI]

of a dedicated breast PET/CT scanner during human imaging. Jhigh-resolution 18 F-FDG PET images (pseudocolor) overlaidMONTH High-resolution 18 F-FDG PET with MRI for monitoring

2010-01-01T23:59:59.000Z

99

Fabrication and characterization of a 0.5-mm lutetium oxyorthosilicate detector array for high-resolution PET applications  

E-Print Network [OSTI]

for a high resolution PET detector using position sensitive51:21312142. 0.5- MM LSO A RRAY FOR PET Stickel et al.Instrumentation aspects of animal PET. Annu Rev Biomed Eng.

Stickel, Jennifer R; Qi, Jinyi; Cherry, Simon R

2007-01-01T23:59:59.000Z

100

Unusual association of alveolar rhabdomyosarcoma with pancreatic metastasis: emerging role of PET-CT in tumor staging  

E-Print Network [OSTI]

Christie R, Daw NC et al ( 2005) PET/CT in the evaluation ofComparative study of FDG PET/CT and conventional imaging inet al (2009) Diagnostic value of PET/CT for the staging and

2010-01-01T23:59:59.000Z

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


101

MR-based motion correction for PET imaging using wired active MR microcoils in simultaneous PET-MR: Phantom study  

SciTech Connect (OSTI)

Purpose: Artifacts caused by head motion present a major challenge in brain positron emission tomography (PET) imaging. The authors investigated the feasibility of using wired active MR microcoils to track head motion and incorporate the measured rigid motion fields into iterative PET reconstruction. Methods: Several wired active MR microcoils and a dedicated MR coil-tracking sequence were developed. The microcoils were attached to the outer surface of an anthropomorphic{sup 18}F-filled Hoffman phantom to mimic a brain PET scan. Complex rotation/translation motion of the phantom was induced by a balloon, which was connected to a ventilator. PET list-mode and MR tracking data were acquired simultaneously on a PET-MR scanner. The acquired dynamic PET data were reconstructed iteratively with and without motion correction. Additionally, static phantom data were acquired and used as the gold standard. Results: Motion artifacts in PET images were effectively removed by wired active MR microcoil based motion correction. Motion correction yielded an activity concentration bias ranging from ?0.6% to 3.4% as compared to a bias ranging from ?25.0% to 16.6% if no motion correction was applied. The contrast recovery values were improved by 37%156% with motion correction as compared to no motion correction. The image correlation (mean standard deviation) between the motion corrected (uncorrected) images of 20 independent noise realizations and static reference was R{sup 2} = 0.978 0.007 (0.588 0.010, respectively). Conclusions: Wired active MR microcoil based motion correction significantly improves brain PET quantitative accuracy and image contrast.

Huang, Chuan; Brady, Thomas J.; El Fakhri, Georges; Ouyang, Jinsong, E-mail: ouyang.jinsong@mgh.harvard.edu [Center for Advanced Medical Imaging Sciences, Division of Nuclear Medicine and Molecular Imaging, Department of Imaging, Massachusetts General Hospital, Boston, Massachusetts 02114 and Department of Radiology, Harvard Medical School, Boston, Massachusetts 02115 (United States)] [Center for Advanced Medical Imaging Sciences, Division of Nuclear Medicine and Molecular Imaging, Department of Imaging, Massachusetts General Hospital, Boston, Massachusetts 02114 and Department of Radiology, Harvard Medical School, Boston, Massachusetts 02115 (United States); Ackerman, Jerome L. [Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts 02129 and Department of Radiology, Harvard Medical School, Boston, Massachusetts 02115 (United States)] [Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts 02129 and Department of Radiology, Harvard Medical School, Boston, Massachusetts 02115 (United States); Petibon, Yoann [Center for Advanced Medical Imaging Sciences, Division of Nuclear Medicine and Molecular Imaging, Department of Imaging, Massachusetts General Hospital, Boston, Massachusetts 02114 (United States)] [Center for Advanced Medical Imaging Sciences, Division of Nuclear Medicine and Molecular Imaging, Department of Imaging, Massachusetts General Hospital, Boston, Massachusetts 02114 (United States)

2014-04-15T23:59:59.000Z

102

CPD plasmid code: White label pET22b-50CPD(SalI)  

E-Print Network [OSTI]

CPD plasmid code: White label pET22b-50CPD(SalI) Green label pET22b-52CPD(SacI) Blue label pET22b also be flexible otherwise autocleavage will be inefficient Yellow label pET22b-HA-50CPD(SalI) Purple label pET28a-50CPD(SalI) Red label pET28a-HA-50CPD(SalI) Shen comment: I would recommend trying out

Hill, Chris

103

Measurement of the Ratio of Branching Fractions Br(Bs -> Ds- pi+)/Br(B -> D- pi+) at CDF-II  

SciTech Connect (OSTI)

The measurement of B{sub s}{sup 0} mixing is one of the flagship analyses for the Run II B physics program. The sensitivity of the measurement to the frequency of B{sub s}{sup 0} oscillations strongly depends on the number of reconstructed B{sub s}{sup 0} mesons. They present the measurement of the ratio of branching fractions Br(B{sub s}{sup 0} {yields} D{sub s}{sup -}{pi}{sup +})/Br(B{sup 0} {yields} D{sup -}{pi}{sup +}), which directly influences the number of B{sub s}{sup 0} events available for the measurement of B{sub s}{sup 0} mixing at CDF-II. They analyze 115 pb{sup -1} of data collected with the CDF-II detector in p{bar p} collisions at {radical}s = 1.96 TeV using a novel displaced track trigger. They reconstruct 78 {+-} 11 B{sub s}{sup 0} {yields} D{sub s}{sup -}{pi}{sup +} decays at 1153 {+-} 45 B{sup 0} {yields} D{sup -}{pi}{sup +} decays with good signal to background ratio. This is the world's largest sample of fully reconstructed B{sub s}{sup 0} {yields} D{sub s}{sup -}{pi}{sup +} decays. They find the ratio of production fractions multiplied by the ratio of branching fractions to be: f{sub s}/f{sub d} {center_dot} Br(B{sub s}{sup 0} {yields} D{sub s}{sup -}{pi}{sup +})/Br(B{sup 0} {yields} D{sup -}{pi}{sup +}) = 0.325 {+-} 0.046(stat) {+-} 0.034(syst) {+-} 0.084 (BR). Using the world average value of f{sub s}/f{sub d} = 0.26 {+-} 0.03, we infer that the ratio of branching fractions is: Br(B{sub s}{sup 0} {yields} D{sub s}{sup -}{pi}{sup +})/Br(B{sup 0} {yields} D{sup -}{pi}{sup +}) = 1.25 {+-} 0.18(stat) {+-} 0.13(syst) {+-} 0.32(BR) {+-} 0.14(PR) where the last uncertainty is due to the uncertainty on the world average measurement of the ratio of B{sub s}{sup 0} to B{sup 0} production rates, f{sub s}/f{sub d}.

Furic, Ivan Kresimir; /MIT

2004-03-01T23:59:59.000Z

104

PET IMAGING STUDIES IN DRUG ABUSE RESEARCH.  

SciTech Connect (OSTI)

There is overwhelming evidence that addiction is a disease of the brain (Leshner, 1997). Yet public perception that addiction is a reflection of moral weakness or a lack of willpower persists. The insidious consequence of this perception is that we lose sight of the fact that there are enormous medical consequences of addiction including the fact that a large fraction of the total deaths from cancer and heart disease are caused by smoking addiction. Ironically the medical school that educates physicians in addiction medicine and the cancer hospital that has a smoking cessation clinic are vanishingly rare and efforts at harm reduction are frequently met with a public indignation. Meanwhile the number of people addicted to substances is enormous and increasing particularly the addictions to cigarettes and alcohol. It is particularly tragic that addiction usually begins in adolescence and becomes a chronic relapsing problem and there are basically no completely effective treatments. Clearly we need to understand how drugs of abuse affect the brain and we need to be creative in using this information to develop effective treatments. Imaging technologies have played a major role in the conceptualization of addiction as a disease of the brain (Fowler et al., 1998a; Fowler et al., 1999a). New knowledge has been driven by advances in radiotracer design and chemistry and positron emission tomography (PET) instrumentation and the integration of these scientific tools with the tools of biochemistry, pharmacology and medicine. This topic cuts across the medical specialties of neurology, psychiatry, cancer and heart disease because of the high medical, social and economic toll that drugs of abuse, including and especially the legal drugs, cigarettes and alcohol, take on society. In this chapter we will begin by highlighting the important role that chemistry has played in making it possible to quantitatively image the movement of drugs as well as their effects on the human brain. This will be followed by highlights of PET studies of the acute effects of the psychostimulant drugs cocaine and methylphenidate (ritalin) and studies of the chronic effects of cocaine and of tobacco smoke on the human brain. This chapter concludes with the description of a study which uses brain imaging coupled with a specific pharmacological challenge to address the age-old question of why some people who experiment with drugs become addicted while others do not.

Fowler, J.S.; Volkow, N.D.; Ding, Y.S.; Logan, J.; Wang, G.J.

2001-01-29T23:59:59.000Z

105

Positron Emission Tomography (PET) Evaluation After Initial Chemotherapy and Radiation Therapy Predicts Local Control in Rhabdomyosarcoma  

SciTech Connect (OSTI)

Purpose: 18-fluorodeoxyglucose positron emission tomography (PET) is already an integral part of staging in rhabdomyosarcoma. We investigated whether primary-site treatment response characterized by serial PET imaging at specific time points can be correlated with local control. Patients and Methods: We retrospectively examined 94 patients with rhabdomyosarcoma who received initial chemotherapy 15 weeks (median) before radiotherapy and underwent baseline, preradiation, and postradiation PET. Baseline PET standardized uptake values (SUVmax) and the presence or absence of abnormal uptake (termed PET-positive or PET-negative) both before and after radiation were examined for the primary site. Local relapse-free survival (LRFS) was calculated according to baseline SUVmax, PET-positive status, and PET-negative status by the Kaplan-Meier method, and comparisons were tested with the log-rank test. Results: The median patient age was 11 years. With 3-year median follow-up, LRFS was improved among postradiation PET-negative vs PET-positive patients: 94% vs 75%, P=.02. By contrast, on baseline PET, LRFS was not significantly different for primary-site SUVmax {<=}7 vs >7 (median), although the findings suggested a trend toward improved LRFS: 96% for SUVmax {<=}7 vs 79% for SUVmax >7, P=.08. Preradiation PET also suggested a statistically insignificant trend toward improved LRFS for PET-negative (97%) vs PET-positive (81%) patients (P=.06). Conclusion: Negative postradiation PET predicted improved LRFS. Notably, 77% of patients with persistent postradiation uptake did not experience local failure, suggesting that these patients could be closely followed up rather than immediately referred for intervention. Negative baseline and preradiation PET findings suggested statistically insignificant trends toward improved LRFS. Additional study may further understanding of relationships between PET findings at these time points and outcome in rhabdomyosarcoma.

Dharmarajan, Kavita V., E-mail: dharmark@mskcc.org [Departments of Radiation Oncology, Pediatric Oncology, and Nuclear Medicine, Memorial Sloan-Kettering, New York, New York (United States); Wexler, Leonard H.; Gavane, Somali; Fox, Josef J.; Schoder, Heiko; Tom, Ashlyn K.; Price, Alison N.; Meyers, Paul A.; Wolden, Suzanne L. [Departments of Radiation Oncology, Pediatric Oncology, and Nuclear Medicine, Memorial Sloan-Kettering, New York, New York (United States)] [Departments of Radiation Oncology, Pediatric Oncology, and Nuclear Medicine, Memorial Sloan-Kettering, New York, New York (United States)

2012-11-15T23:59:59.000Z

106

Delayed neutron studies of separated isotopes of Br, Rb, I, and Cs  

E-Print Network [OSTI]

Discusses delayed neutron studies of separated isotopes of Br, Rb, I, and Cs are currently in progress at the Spectrometer for On-Line Analysis of Radionuclides (SOLAR) facility operated by Battelle, Pacific Northwest Laboratories. (2 refs).

Reeder, R L; Wright, J F

1976-01-01T23:59:59.000Z

107

REACTION AND DEACTIVATION OF HC1 (v = 1, 2) BY Cl, Br, AND H ATOMS  

E-Print Network [OSTI]

1, 2) by Cl, Br, and H ATOMS R. G. Macdonald and C. Bradleyrelaxation of HCl by reactive atoms, av = - 1, at 294 K.aof HCl(v = 2) by Cl atoms from decay rate measurements~ Tab

Macdonald, R.G.

2013-01-01T23:59:59.000Z

108

BrUCE BUrGETT School of Interdisciplinary Arts and Sciences  

E-Print Network [OSTI]

8 BrUCE BUrGETT School of Interdisciplinary Arts and Sciences Burgett earned his bachelor and Scott previously held the title of director of their respective programs. #12;

Queitsch, Christine

109

Leaching of antimony from polyethylene terephthalate (PET) bottles into mineral water  

E-Print Network [OSTI]

Leaching of antimony from polyethylene terephthalate (PET) bottles into mineral water Szilvia April 2009 Available online 21 May 2009 Keywords: Antimony Water Leaching Polyethylene terephthalate SODIS The Sb leaching from polyethylene terephthalate (PET) package material into 10 different brands

Short, Daniel

110

Neurovascular coupling to D2/D3 dopamine receptor occupancy using simultaneous PET/functional MRI  

E-Print Network [OSTI]

This study employed simultaneous neuroimaging with positron emission tomography (PET) and functional magnetic resonance imaging (fMRI) to demonstrate the relationship between changes in receptor occupancy measured by PET ...

Sander, Christin Yen-Ming

111

Detektion von Phochromozytomen und rekurrenten medullren Schilddrsenkarzinomen mit F18 DOPA PET/CT.  

E-Print Network [OSTI]

??Evaluating [18F]dihydroxyphenylalanine (DOPA) in patients with clinical suspicion for a primary or recurrent pheochromocytoma (pheo) by means of whole body PET/CT. In pheos PET/CT detects (more)

Zeich, Katrin

2009-01-01T23:59:59.000Z

112

Advantages of improved timing accuracy in PET cameras using LSOscintillator  

SciTech Connect (OSTI)

PET scanners based on LSO have the potential forsignificantly better coincidence timing resolution than the 6 ns fwhmtypically achieved with BGO. This study analyzes the performanceenhancements made possible by improved timing as a function of thecoincidence time resolution. If 500 ps fwhm coincidence timing resolutioncan be achieved in a complete PET camera, the following four benefits canbe realized for whole-body FDG imaging: 1) The random event rate can bereduced by using a narrower coincidence timing window, increasing thepeak NECR by~;50 percent. 2) Using time-of-flight in the reconstructionalgorithm will reduce the noise variance by a factor of 5. 3) Emissionand transmission data can be acquired simultaneously, reducing the totalscan time. 4) Axial blurring can be reduced by using time-of-flight todetermine the correct axial plane that each event originated from. Whiletime-of-flight was extensively studied in the 1980's, practical factorslimited its effectiveness at that time and little attention has been paidto timing in PET since then. As these potential improvements aresubstantial and the advent of LSO PET cameras gives us the means toobtain them without other sacrifices, efforts to improve PET timingshould resume after their long dormancy.

Moses, William W.

2002-12-02T23:59:59.000Z

113

Measurement of BR(Bu to phi K)/BR(Bu to J/psi K) at the collider detector at Fermilab  

SciTech Connect (OSTI)

This thesis presents evidence for the decay mode B{sup {+-}} {yields} {phi}K{sup {+-}} in p{bar p} collisions at {radical}s = 1.96 TeV using (120 {+-} 7)pb{sup -1} of data collected by the Collider Detector at Fermilab (CDF). This signal is then used to measure the branching ratio relative to the decay mode B{sup {+-}} {yields} J/{psi}K{sup {+-}}. The measurement starts from reconstructing the two decay modes: B{sup {+-}} {yields} {phi}K{sup {+-}}, where {phi} {yields} K{sup +}K{sup -} and B{sup {+-}} {yields} J/{psi}K{sup {+-}}, where J/{psi} {yields} {mu}{sup +}{mu}{sup -}. The measurement yielded 23 {+-} 7 B{sup {+-}} {yields} {phi}K{sup {+-}} events, and 406 {+-} 26 B{sup {+-}} {yields} J/{psi}K{sup {+-}} events. The fraction of B{sup {+-}} {yields} J/{psi}K{sup {+-}} events where the J/{psi} subsequently decayed to two muons (as opposed to two electrons) was found to be f{sub {mu}{mu}} = 0.839 {+-} 0.066. The relative branching ratio of the two decays is then calculated based on the equation: BR(B{sup {+-}} {yields} {phi}K{sup {+-}})/BR(B{sup {+-}} {yields} J/{psi}K{sup {+-}}) = N{sub {phi}K}/N{sub {psi}K} {center_dot}f{sub {mu}{mu}} BR(J/{psi} {yields} {mu}{sup +}{mu}{sup -})/BR({phi} {yields} K{sup +}K{sup -}) {epsilon}{sub {mu}{mu}}K/{epsilon}KKK R({epsilon}{sub iso}). The measurement finds BR(B{sup {+-}} {yields} {phi}K{sup {+-}})/BR(B{sup {+-}} {yields} J/{psi}K{sup {+-}}) = 0.0068 {+-} 0.0021(stat.) {+-} 0.0007(syst.). The B{sup {+-}} {yields} {phi}K{sup {+-}} branching ratio is then found to be BR(B{sup {+-}} {yields} {phi}K{sup {+-}}) = [6.9 {+-} 2.1(stat.) {+-} 0.8(syst.)] x 10{sup -6}. This value is consistent with similar measurements reported by the e{sup +}e{sup -} collider experiments BaBar[1], Belle[2], and CLEO[3].

Napora, Robert A

2004-10-01T23:59:59.000Z

114

E-Print Network 3.0 - animal pet clear Sample Search Results  

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

pet tracking ... Source: Anderson, Richard - Department of Computer Science and Engineering, University of Washington at Seattle Collection: Computer Technologies and...

115

PET: an Interactive Software Testing Tool Elsa Gunter, Robert Kurshan, Doron Peled  

E-Print Network [OSTI]

PET: an Interactive Software Testing Tool Elsa Gunter, Robert Kurshan, Doron Peled Bell Laboratories 600 Mountain Ave. Murray Hill, NJ 07974 April 16, 2000 Abstract We describe here the PET (standing programs, interleaved sequences of code. The PET system calculates the exact condition to execute path

Peled, Doron A.

116

The Mathematics of the Imaging Techniques of MEG, CT, PET and SPECT  

E-Print Network [OSTI]

The Mathematics of the Imaging Techniques of MEG, CT, PET and SPECT A.S. Fokas, V. Marinakis), of positron emission tomography (PET) and of single photon emission computed to­ mography (SPECT) are reviewed techniques of positron emission tomography (PET) and of single photon emission computed tomography (SPECT

Fokas, A. S.

117

Prognostic value of 18 F-FDG PET image-based  

E-Print Network [OSTI]

1 Prognostic value of 18 F-FDG PET image-based parameters in esophageal cancer and impact of tumor Medicine 3 Department of Radiotherapy CHU Morvan, Brest, France Running title: FDG PET indices for survival Phone:+33298018111 Word count: 5976 Keywords: PET, tumor volume, tumor segmentation, esophageal cancer

Boyer, Edmond

118

Noninvasive high-resolution detection of the arterial and venous input function through a PET Wrist  

E-Print Network [OSTI]

Noninvasive high-resolution detection of the arterial and venous input function through a PET Wrist using planar coincidence images. I. INTRODUCTION Quantitative Positron Emission Tomography (PET) often determine the input function. These techniques include external monitors and PET scanners that measure

119

PET Model v1.0 Read Me File March 28, 2011  

E-Print Network [OSTI]

PET Model v1.0 Read Me File March 28, 2011 These notes describe the compiling procedure, input files, and output files associated with a 9-region, 5- sector version of the PET model version 1.0, used to generate the scenarios reported in O'Neill et al., 2010.1 Compiling The PET model is currently compiled

120

Thoracic CT-PET Registration Using a 3D Breathing Model  

E-Print Network [OSTI]

Thoracic CT-PET Registration Using a 3D Breathing Model Antonio Moreno1 , Sylvie Chambon1 , Anand P Orlando, USA Abstract. In the context of thoracic CT-PET volume registration, we present a novel method applications. We consider Computed Tomography (CT) and Positron Emission Tomography (PET) in thoracic regions

Paris-Sud XI, Université de

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


121

Retinotopic Organization of Early Visual Spatial Attention Effects as Revealed by PET and ERPs  

E-Print Network [OSTI]

Retinotopic Organization of Early Visual Spatial Attention Effects as Revealed by PET and ERPs M: Cerebral blood flow PET scans and high-density event-related potentials (ERPs) were recorded (separate of attention. In PET scans, active attention vs. passive showed strong activation in the contralateral dorsal

122

Statistical Image Reconstruction Methods for Simultaneous Emission/Transmission PET Scans  

E-Print Network [OSTI]

Statistical Image Reconstruction Methods for Simultaneous Emission/Transmission PET Scans Hakan are necessary for estimating the attenuation correction factors (ACFs) to yield quantitatively accu- rate PET to recon- struct lower noise PET emission images from simultaneous trans- mission/emission scans

Erdogan, Hakan

123

Compensation du mouvement respiratoire dans les images TEP Respiratory motion correction in PET images  

E-Print Network [OSTI]

Compensation du mouvement respiratoire dans les images TEP Respiratory motion correction in PET itérative. Abstract The quality of the Positron Emission Tomography (PET) is currently limited an integrated system to compensate respiratory motion in PET images. It is based on synchronous acquisition

Paris-Sud XI, Université de

124

Future work: This section is one of the repeat units in the PET structure.  

E-Print Network [OSTI]

Future work: This section is one of the repeat units in the PET structure. Ester groupEster group--because of proprietary considerations--cannot be named here. The reason for this research PET is a form a plastic = many esters, or polyester. The letters in PET come from its formal name which is polyethylene

125

Avian Mite Bites Acquired From a New Source--Pet Gerbils  

E-Print Network [OSTI]

Avian Mite Bites Acquired From a New Source--Pet Gerbils Report of 2 Cases and Review infested pet gerbils and reviews the der- matologic literature about avian mites. Observations: An 11-year their pet gerbils were found to be infested with Ornithonyssus sylviarum (the northern fowl mite

Lucky, Andrea

126

FUZZY VERSUS HARD HIDDEN MARKOV CHAINS SEGMENTATION FOR VOLUME DETERMINATION AND QUANTITATION IN NOISY PET IMAGES  

E-Print Network [OSTI]

IN NOISY PET IMAGES M. Hatt1 , N. Boussion1 , Member IEEE, F. Lamare1 , Student Member IEEE, C. Collet2 , F-conducteurs (PHASE), ULP, Strasbourg, France. ABSTRACT Accurate volume contouring in PET is crucial for quantitation for automatic lesion volume delineation that permit noise modelling and have not previously been applied to PET

127

Helpful Resources Online Rescue Network provides a list of pet rescue groups by  

E-Print Network [OSTI]

Helpful Resources Online Rescue Network provides a list of pet rescue groups by state--select your mammals, but they may be able to connect you with local rescue groups who will help place exotic pets of qualified exotic pet veterinarians, searchable by zip code. Contact them for advice or euthanasia services

Jawitz, James W.

128

Solid State Blending of Poly(ethylene terephthalate) with Polystyrene: Extent of PET Amorphization and  

E-Print Network [OSTI]

Solid State Blending of Poly(ethylene terephthalate) with Polystyrene: Extent of PET Amorphization.interscience.wiley.com). ABSTRACT: Polystyrene (PS) and poly(ethylene terephthalate) (PET) were blended to- gether in the solid. CMA PS/PET blend morphologies were characterized both qualitatively and quantitatively through

Mitchell, Brian S.

129

Announcing... Agency Services is excited to announce that we have partnered with Pet's Best  

E-Print Network [OSTI]

Announcing... Agency Services is excited to announce that we have partnered with Pet's Best Insurance Company to offer pet health insurance for your dog or cat. This coverage will be offered at a discounted rate to all California Casualty employees and customers. The Pets Best policy covers illnesses

Gleeson, Joseph G.

130

Low-Dose Dual-Energy CT for PET Attenuation Correction with Statistical Sinogram Restoration  

E-Print Network [OSTI]

1 Low-Dose Dual-Energy CT for PET Attenuation Correction with Statistical Sinogram Restoration. of Michigan & Univ. of Washington Outline Introduction - PET/CT background - CT-based attenuation correction for PET Conventional sinogram decomposition in DE-CT Statistically motivated sinogram restoration in DE

Fessler, Jeffrey A.

131

Adapted Convex Optimization Algorithm for Wavelet-Based Dynamic PET Reconstruction  

E-Print Network [OSTI]

1 Adapted Convex Optimization Algorithm for Wavelet-Based Dynamic PET Reconstruction Nelly Abstract--This work deals with Dynamic Positron Emission Tomography (PET) data reconstruction, considering. The effectiveness of this approach is shown with simulated dynamic PET data. Comparative results are also provided

Paris-Sud XI, Université de

132

Exploring Pet Video Chat: The Remote Awareness and Interaction Needs of Families with Dogs and Cats  

E-Print Network [OSTI]

1 Exploring Pet Video Chat: The Remote Awareness and Interaction Needs of Families with Dogs College Park, MD, USA golbeck@cs.umd.edu ABSTRACT Many people have pets such as dogs and cats that they would consider to be family. Along with this comes a need to stay aware of one's pet and, possibly

Golbeck, Jennifer

133

Fuzzy hidden Markov chains segmentation for volume determination and quantitation in PET  

E-Print Network [OSTI]

1 Fuzzy hidden Markov chains segmentation for volume determination and quantitation in PET M. Hatt1;52(12):3467-91" DOI : 10.1088/0031-9155/52/12/010 #12;2 ABSTRACT Accurate volume of interest (VOI) estimation in PET is concerned. inserm-00150348,version1-6Apr2009 #12;3 1. Introduction Positron Emission Tomography (PET) has

Paris-Sud XI, Université de

134

Compact, High-Resolution, Multi-Layer Semiconductor PET Detector Module  

E-Print Network [OSTI]

Compact, High-Resolution, Multi-Layer Semiconductor PET Detector Module Summary Multi tomography (PET) systems, but the conventional electrodes used require a prohibitive number of readout channels. Now, a breakthrough compact PET detector offers a specialized configuration of cross strip

Ohta, Shigemi

135

Intra-tumor heterogeneity on baseline 18 F-FDG PET images  

E-Print Network [OSTI]

1 Intra-tumor heterogeneity on baseline 18 F-FDG PET images characterized by textural features 4. INSERM, U613, Faculty of Medicine, Brest F-29200, France Keywords: 18 F-FDG PET, esophageal(0)298018124 Email: florent.tixier@etudiant.univ-brest.fr Short running title: PET texture analysis predicts response

Paris-Sud XI, Université de

136

Multi observation PET image analysis for patient follow-up quantitation and therapy assessment  

E-Print Network [OSTI]

1 Multi observation PET image analysis for patient follow-up quantitation and therapy assessment S Institut Telecom - Telecom Bretagne, Brest, F-29200 France. Abstract. In Positron Emission Tomography (PET-quantitative parameters restricted to maximum SUV measured in PET scans during the treatment. Such measurements do

Brest, Université de

137

Comparison between 18F-FDG PET image derived indices for early prediction of response  

E-Print Network [OSTI]

1 Comparison between 18F-FDG PET image derived indices for early prediction of response foot line: sequential 18 F-FDG PET for breast cancer hal-00748923,version1-6Nov2012 #12;2 ABSTRACT from sequential 18 F-FDG Positron Emission Tomography (PET) scans for early tumor response prediction

Paris-Sud XI, Université de

138

Evaluating an Alternative Model for the Input Function in FDG-PET Studies 1  

E-Print Network [OSTI]

Evaluating an Alternative Model for the Input Function in FDG-PET Studies 1 Hongbin Guo 2 Rosemary-D-glucose flu- oro (FDG) positron emission tomography (PET) brain studies with bolus injection is presented-derived expressions. The new model provides an effective means to recover the input function in FDG-PET studies

Renaut, Rosemary

139

A Central Positron Source to Perform the Timing Alignment of Detectors in a PET  

E-Print Network [OSTI]

A Central Positron Source to Perform the Timing Alignment of Detectors in a PET Scanner Christopher. This suggests it could be useful to align both conventional and time-of-flight PET scanners. I. INTRODUCTION An essential calibration procedure for a positron emission tomography (PET) scanner is the compensation

Thompson, Chris

140

A Generalized Diffusion Based Inter-Iteration Nonlinear Bilateral Filtering Scheme for PET  

E-Print Network [OSTI]

A Generalized Diffusion Based Inter-Iteration Nonlinear Bilateral Filtering Scheme for PET Image inter-iteration filtering scheme based diffusion MAP estimate for PET image reconstruction is proposed,version1 #12;1. Introduction Positron emission tomography (PET) is one of the most important imaging tools

Paris-Sud XI, Université de

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


141

The age of reason for FDG PET image derived indices Dimitris Visvikis1  

E-Print Network [OSTI]

The age of reason for FDG PET image derived indices Dimitris Visvikis1 , Mathieu Hatt1 , Florent, CHU Milétrie, Poitiers, France Keywords: image derived parameters, 18F-FDG-PET, prediction, prognosis : 10.1007/s00259-012-2239-0 #12;The clinical use of Positron Emission Tomography (PET) imaging using

Paris-Sud XI, Université de

142

REGION-BASED ACTIVE SURFACE MODELLING AND ALPHA MATTING FOR UNSUPERVISED TUMOUR SEGMENTATION IN PET  

E-Print Network [OSTI]

REGION-BASED ACTIVE SURFACE MODELLING AND ALPHA MATTING FOR UNSUPERVISED TUMOUR SEGMENTATION IN PET University, UK. 3. Adobe Systems, Seattle, USA. 4. Turku PET Center and Department of Oncology imaging. We have validated our method on real PET images of head-and-neck cancer patients as well

Wang, Jue

143

On the Internet, Everybody Knows Youre a Dog: The Human-Pet  

E-Print Network [OSTI]

On the Internet, Everybody Knows Youre a Dog: The Human-Pet Relationship in Online Social Networks Abstract The benefits of pet ownership to physical and mental health are extensive and well documented. Online social networks have the potential to strengthen these relationships and build community among pet

Golbeck, Jennifer

144

CORTICAL BRAIN SURFACE MAPPING FOR STUDYING PARTIAL VOLUME EFFECTS IN BRAIN FDG PET IMAGES  

E-Print Network [OSTI]

CORTICAL BRAIN SURFACE MAPPING FOR STUDYING PARTIAL VOLUME EFFECTS IN BRAIN FDG PET IMAGES Hillary PET images is confounded by tissue atrophy and partial volume effects, especially in patients-based cortical brain surface mapping technique to account for partial volume effects on brain FDG PET images

Thompson, Paul

145

IMPROVED QUANTITATIVE METHODS FOR MULTIPLE NEUROPHARMACOLOGICAL NON-INVASIVE BRAIN PET STUDIES  

E-Print Network [OSTI]

i IMPROVED QUANTITATIVE METHODS FOR MULTIPLE NEUROPHARMACOLOGICAL NON-INVASIVE BRAIN PET STUDIES.2.2 Multiple Neuropharmacological Measures from a single PET scan ................. 4 1.2.2.1 Dual ...................................................................................... 5 1.2.3 Reduction of inter-scanner PET image variability

Fessler, Jeffrey A.

146

CT-PET Landmark-based Lung Registration Using a Dynamic Breathing Model S. Chambon1  

E-Print Network [OSTI]

CT-PET Landmark-based Lung Registration Using a Dynamic Breathing Model S. Chambon1 , A. Moreno1-based registration of CT (at two different instants of the breathing cycle, intermediate expirations) and PET images in order to simulate the instant in the breathing cycle most similar to the PET image and guarantee

Paris-Sud XI, Université de

147

democrite-00024907,version2-23Nov2005 Experimental study of a liquid Xenon PET  

E-Print Network [OSTI]

democrite-00024907,version2-23Nov2005 Experimental study of a liquid Xenon PET prototype module M (PET). The specific design aims at taking full advantage of the liquid Xenon properties. It does-Multiplier Tube (PSPMT) operating in the VUV range (178 nm). Key words: Positron emission tomography (PET

Paris-Sud XI, Université de

148

PET: a Tool for Post-editing and Assessing Machine Translation Wilker Aziz* and Lucia Specia**  

E-Print Network [OSTI]

PET: a Tool for Post-editing and Assessing Machine Translation Wilker Aziz* and Lucia Specia.Specia@sheffield.ac.uk Download: http://pers-www.wlv.ac.uk/~in1676/pet/ Given the significant recent improvements in Machine required to correct them. PET, a stand-alone Post-Editing Tool has two main purposes: facilitate the post

Mitkov, Ruslan

149

BioSystems 71 (2003) 8192 Clustering huge data sets for parametric PET imaging  

E-Print Network [OSTI]

BioSystems 71 (2003) 81­92 Clustering huge data sets for parametric PET imaging Hongbin Guoa University, Tempe, AZ 85287-1804, USA b Good Samaritan PET Center, Good Samaritan Regional Medical Center preprocessing clustering technique for quantification of kinetic PET data is presented. A two-stage clustering

Renaut, Rosemary

150

OFFICIAL POLICY 6.1.3 Policy on Pets on Campus 4/22/2014  

E-Print Network [OSTI]

OFFICIAL POLICY 6.1.3 Policy on Pets on Campus 4/22/2014 Policy Statement 1.0 BUILDINGS AND OFFICES, "College"), unless allowed under the terms of Section 4.0 of this Policy. 2.0 COLLEGE GROUNDS Pets are permitted on campus grounds, subject to the terms of this Policy. Pets brought on campus grounds

Kasman, Alex

151

pET System Manual TB055 10th Edition 0702 1United States & Canada 800-207-0144  

E-Print Network [OSTI]

pET System Manual TB055 10th Edition 0702 1United States & Canada 800-207-0144 Germany 0800 6931 of the pET Manual was published July, 2002. Novagen is continually expanding and upgrading the pET System. Please check the Novagen website, www.novagen.com, for updated pET System Manual information. Table

Lebendiker, Mario

152

A liquid xenon PET camera -Simulation and position sensitive PMT tests S.Jan, J.Collot, E Tournefier  

E-Print Network [OSTI]

A liquid xenon PET camera - Simulation and position sensitive PMT tests S.Jan, J.Collot, E a Positron Emission Tomograph (PET) based on the use of liquid xenon (LXe) as an active medium. This PET (½½ ) PET camera dedicated to hadrontherapy is also considered. This development is proposed by three

Paris-Sud XI, Université de

153

Br-Cl-Na systematics in Illinois basin fluids: Constraints on fluid origin and evolution  

SciTech Connect (OSTI)

The authors present here bromide, chloride, and sodium data for fluids from reservoirs of Ordovician through Pennsylvania age in the Illinois basic which suggest that remnant marine fluids contribute significantly to fluid Cl budgets. Cl/Br and NaBr ratios for Ordovician through Devonian formation fluids are relatively uniform and near those for seawater, despite greater than a factor of ten range in Cl concentration. In contrast, fluids from Mississippian and Pennsylvanian reservoirs, separated from older reservoirs by the New Albany Shale Group, have more variable fluid Cl/Br and Na/Br ratios, most of which are significantly greater then those of seawater. The 1:1 stoichiometry of Cl and Na increases for Mississippian and Pennsylvanian formation fluids is consistent with halite dissolution. Nevertheless, Br systematics and mass-balance considerations indicate that he overall Cl budget of Illinois basin formation fluids appears to be more significantly influenced by the contribution from subaerially evaporated seawater than by halite dissolution.

Walter, L.M.; Huston, T.J. (Washington Univ., St. Louis, Missouri (USA)); Stueber, A.M. (Southern Illinois Univ., Edwardsville (USA))

1990-04-01T23:59:59.000Z

154

Measurement of \\Gamma_{ee}(J/\\psi)*Br(J/\\psi->e^+e^-) and \\Gamma_{ee}(J/\\psi)*Br(J/\\psi->\\mu^+\\mu^-)  

E-Print Network [OSTI]

The products of the electron width of the J/\\psi meson and the branching fraction of its decays to the lepton pairs were measured using data from the KEDR experiment at the VEPP-4M electron-positron collider. The results are \\Gamma_{ee}(J/\\psi)*Br(J/\\psi->e^+e^-)=0.3323\\pm0.0064\\pm0.0048 keV, \\Gamma_{ee}(J/\\psi)*Br(J/\\psi->\\mu^+\\mu^-)=0.3318\\pm0.0052\\pm0.0063 keV. Assuming e\\mu universality and using the world average value of the lepton branching fraction, we also determine the leptonic \\Gamma_{ll}=5.59\\pm0.12 keV and total \\Gamma=94.1\\pm2.7 keV widths of the J/\\psi meson.

Anashin, V V; Baldin, E M; Barladyan, A K; Barnyakov, A Yu; Barnyakov, M Yu; Baru, S E; Bedny, I V; Beloborodova, O L; Blinov, A E; Blinov, V E; Bobrov, A V; Bobrovnikov, V S; Bogomyagkov, A V; Bondar, A E; Bondarev, D V; Buzykaev, A R; Eidelman, S I; Glukhovchenko, Yu M; Gulevich, V V; Gusev, D V; Karnaev, S E; Karpov, G V; Karpov, S V; Kharlamova, T A; Kiselev, V A; Kononov, S A; Kotov, K Yu; Kravchenko, E A; Kulikov, V F; Kurkin, G Ya; Kuper, E A; Levichev, E B; Maksimov, D A; Malyshev, V M; Maslennikov, A L; Medvedko, A S; Meshkov, O I; Mishnev, S I; Morozov, I I; Muchnoi, N Yu; Neufeld, V V; Nikitin, S A; Nikolaev, I B; Okunev, I N; Onuchin, A P; Oreshkin, S B; Orlov, I O; Osipov, A A; Peleganchuk, S V; Pivovarov, S G; Piminov, P A; Petrov, V V; Poluektov, A O; Popkov, I N; Prisekin, V G; Ruban, A A; Sandyrev, V K; Savinov, G A; Shamov, A G; Shatilov, D N; Shwartz, B A; Simonov, E A; Sinyatkin, S V; Skovpen, Yu I; Skrinsky, A N; Smaluk, V V; Sokolov, A V; Sukharev, A M; Starostina, E V; Talyshev, A A; Tayursky, V A; Telnov, V I; Tikhonov, Yu A; Todyshev, K Yu; Tumaikin, G M; Usov, Yu V; Vorobiov, A I; Yushkov, A N; Zhilich, V N; Zhulanov, V V; Zhuravlev, A N

2009-01-01T23:59:59.000Z

155

Measuring BR($h \\to \\tau ^+ \\tau ^-$) at the ILC: a full simulation study  

E-Print Network [OSTI]

We evaluate the expected measurement accuracy of the branching ratio of the Standard Model Higgs boson decaying into tau pairs at the ILC with a full simulation of the ILD detector concept. We assume a Higgs mass of 125 GeV, a branching ratio of BR($h \\to \\tau ^+ \\tau ^-$) = 6.32%, a beam polarization of electron (positron) of -0.8(+0.3), and an integrated luminosity of 250 fb$^{-1}$. The Higgs-strahlung process $e^+ e^- \\to Zh$ with $Z \\to q\\overline{q}$ is analyzed. We estimate the measurement accuracy of the branching ratio $\\Delta (\\sigma \\times \\mathrm{BR}) / (\\sigma \\times \\mathrm{BR})$ to be 3.4% with using a multivariate analysis technique.

Kawada, Shin-ichi; Suehara, Taikan; Takahashi, Tohru; Tanabe, Tomohiko; Yokoyama, Harumichi

2015-01-01T23:59:59.000Z

156

imported for the exotic pet trade. In their native range,  

E-Print Network [OSTI]

, the ultimate source of the African Rock Pythons is escapes or releases of animals that were T h e I n v a d e rimported for the exotic pet trade. In their native range, African Rock Pythons in- habit somewhat survey suggests that another species of large constrictor snake, the Northern African Rock Python, may

Jawitz, James W.

157

animal pet scanner: Topics by E-print Network  

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

animal pet scanner First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Atlas-based attenuation correction...

158

animal pet scanners: Topics by E-print Network  

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

animal pet scanners First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Atlas-based attenuation correction...

159

Synthesis and Screening of Thin Films in the CeCl3-CeBr3 System...  

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

compositions, crystal structures, and luminescence characteristics. Citation: Matson DW, GL Graff, JL Male, BR Johnson, Z Nie, AG Joly, and LC Olsen.2010."Synthesis and Screening...

160

7/29/13 About the PET Center of Excellence interactive.snm.org/index.cfm?PageID=9257 1/3  

E-Print Network [OSTI]

7/29/13 About the PET Center of Excellence interactive.snm.org/index.cfm?PageID=9257 1/3 Home Join Today! How to Join Member Benefits About the PET Center Presidents Message Board of Directors News/Pubs PET COE Newsletters PET References Archive Views You Can Use PET News Today MI: Making a Difference

Jadvar, Hossein

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


161

COMBINED ADAPTIVE CONTROLLER FOR UAV GUIDANCE B.R. Andrievsky, A.L. Fradkov  

E-Print Network [OSTI]

COMBINED ADAPTIVE CONTROLLER FOR UAV GUIDANCE B.R. Andrievsky, A.L. Fradkov Institute for Problems vehicle (UAV) homing guidance system is pro- posed. The adaptation algorithm provides prescribed attitude adaptive controller in the case of significant uncertainty of the UAV parameters and time dependence

162

The solvation of Cl , Br , and I in acetonitrile clusters: Photoelectron spectroscopy and molecular dynamics simulations  

E-Print Network [OSTI]

The solvation of Cl , Br , and I in acetonitrile clusters: Photoelectron spectroscopy and molecular in acetonitrile clusters CH3CN n with n 1­33, 1­40, and 1­55, respectively, taken with 7.9 eV photon energy. Anion simulations of halide­acetonitrile clusters reproduce the measured stabilization energies and generate full

Perera, Lalith

163

PET imaging to non-invasively study immune activation leading to antitumor responses with a 4-1BB agonistic antibody  

E-Print Network [OSTI]

AS, Radu CG, Ribas A: PET imaging of the immune system:as: Escuin-Ordinas et al. : PET imaging to non-invasivelyRESEARCH ARTICLE Open Access PET imaging to non-invasively

2013-01-01T23:59:59.000Z

164

Impact of carbohydrate restriction with and without fatty acid loading on myocardial 18F-FDG uptake during PET: A randomized controlled trial  

E-Print Network [OSTI]

18 F-FDG uptake during PET: A randomized controlled trialmay enhance 18 F-FDG-PET-based imaging of small, in?amedpreparations prior to 18 F-FDG-PET. Methods and Results. We

Cheng, Victor Y.; Slomka, Piotr J.; Ahlen, Marie; Thomson, Louise E.; Waxman, Alan D.; Berman, Daniel S.

2010-01-01T23:59:59.000Z

165

Compact and mobile high resolution PET brain imager  

DOE Patents [OSTI]

A brain imager includes a compact ring-like static PET imager mounted in a helmet-like structure. When attached to a patient's head, the helmet-like brain imager maintains the relative head-to-imager geometry fixed through the whole imaging procedure. The brain imaging helmet contains radiation sensors and minimal front-end electronics. A flexible mechanical suspension/harness system supports the weight of the helmet thereby allowing for patient to have limited movements of the head during imaging scans. The compact ring-like PET imager enables very high resolution imaging of neurological brain functions, cancer, and effects of trauma using a rather simple mobile scanner with limited space needs for use and storage.

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

2011-02-08T23:59:59.000Z

166

Recycling of PET bottles as fine aggregate in concrete  

SciTech Connect (OSTI)

An attempt to substitute in concrete the 5% by weight of fine aggregate (natural sand) with an equal weight of PET aggregates manufactured from the waste un-washed PET bottles (WPET), is presented. The WPET particles possessed a granulometry similar to that of the substituted sand. Specimens with different cement content and water/cement ratio were manufactured. Rheological characterization on fresh concrete and mechanical tests at the ages of 28 and 365 days were performed on the WPET/concretes as well as on reference concretes containing only natural fine aggregate in order to investigate the influence of the substitution of WPET to the fine aggregate in concrete. It was found that the WPET concretes display similar workability characteristics, compressive strength and splitting tensile strength slightly lower that the reference concrete and a moderately higher ductility.

Frigione, Mariaenrica, E-mail: mariaenrica.frigione@unisalento.i [Department of Engineering for Innovation, University of Salento, Via per Monteroni, 73100 Lecce (Italy)

2010-06-15T23:59:59.000Z

167

PET/CT-guided Interventions: Personnel Radiation Dose  

SciTech Connect (OSTI)

PurposeTo quantify radiation exposure to the primary operator and staff during PET/CT-guided interventional procedures.MethodsIn this prospective study, 12 patients underwent PET/CT-guided interventions over a 6 month period. Radiation exposure was measured for the primary operator, the radiology technologist, and the nurse anesthetist by means of optically stimulated luminescence dosimeters. Radiation exposure was correlated with the procedure time and the use of in-room image guidance (CT fluoroscopy or ultrasound).ResultsThe median effective dose was 0.02 (range 0-0.13) mSv for the primary operator, 0.01 (range 0-0.05) mSv for the nurse anesthetist, and 0.02 (range 0-0.05) mSv for the radiology technologist. The median extremity dose equivalent for the operator was 0.05 (range 0-0.62) mSv. Radiation exposure correlated with procedure duration and with the use of in-room image guidance. The median operator effective dose for the procedure was 0.015 mSv when conventional biopsy mode CT was used, compared to 0.06 mSv for in-room image guidance, although this did not achieve statistical significance as a result of the small sample size (p = 0.06).ConclusionThe operator dose from PET/CT-guided procedures is not significantly different than typical doses from fluoroscopically guided procedures. The major determinant of radiation exposure to the operator from PET/CT-guided interventional procedures is time spent in close proximity to the patient.

Ryan, E. Ronan, E-mail: ronan@ronanryan.com; Thornton, Raymond; Sofocleous, Constantinos T.; Erinjeri, Joseph P. [Memorial Sloan-Kettering Cancer Center, Department of Radiology (United States); Hsu, Meier [Memorial Sloan-Kettering Cancer Center, Department of Epidemiology and Biostatistics (United States); Quinn, Brian; Dauer, Lawrence T. [Memorial Sloan-Kettering Cancer Center, Department of Medical Physics (United States); Solomon, Stephen B. [Memorial Sloan-Kettering Cancer Center, Department of Radiology (United States)

2013-08-01T23:59:59.000Z

168

PET computer programs for use with the 88-inch cyclotron  

SciTech Connect (OSTI)

This report describes in detail several offline programs written for the PET computer which provide an efficient data management system to assist with the operation of the 88-Inch Cyclotron. This function includes the capability to predict settings for all cyclotron and beam line parameters for all beams within the present operating domain of the facility. The establishment of a data base for operational records is also described from which various aspects of the operating history can be projected.

Gough, R.A.; Chlosta, L.

1981-06-01T23:59:59.000Z

169

Department of Mechanical Engineering Spring 2012 Assistive Pet Loading Device for Automobiles  

E-Print Network [OSTI]

for Automobiles Overview The main purpose of this project is to design and build a prototype of a new pet ramp

Demirel, Melik C.

170

E-Print Network 3.0 - adhesive silver-coated pet Sample Search...  

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

aged materials: Contributions of surface free... in helium (HeO2) plasma treated polyethylene terephthalate (PET) as well as on the bacterial adhesion... are shown to...

171

GPU accelerated image reconstruction in a two-strip J-PET tomograph  

E-Print Network [OSTI]

We present a fast GPU implementation of the image reconstruction routine, for a novel two strip PET detector that relies solely on the time of flight measurements.

Bia?as, P; Strzelecki, A; Bednarski, T; Czerwi?ski, E; Gajos, A; Kami?ska, D; Kap?on, ?; Kochanowski, A; Korcyl, G; Kowalski, P; Kozik, T; Krzemie?, W; Kubicz, E; Moskal, P; Nied?wiecki, Sz; Pa?ka, M; Raczy?ski, L; Rudy, Z; Rundel, O; Salabura, P; Sharma, N G; Silarski, M; S?omski, A; Smyrski, J; Wieczorek, A; Wi?licki, W; Zieli?ski, M; Zo?, N

2015-01-01T23:59:59.000Z

172

GPU accelerated image reconstruction in a two-strip J-PET tomograph  

E-Print Network [OSTI]

We present a fast GPU implementation of the image reconstruction routine, for a novel two strip PET detector that relies solely on the time of flight measurements.

P. Bia?as; J. Kowal; A. Strzelecki; T. Bednarski; E. Czerwi?ski; A. Gajos; D. Kami?ska; ?. Kap?on; A. Kochanowski; G. Korcyl; P. Kowalski; T. Kozik; W. Krzemie?; E. Kubicz; P. Moskal; Sz. Nied?wiecki; M. Pa?ka; L. Raczy?ski; Z. Rudy; O. Rundel; P. Salabura; N. G. Sharma; M. Silarski; A. S?omski; J. Smyrski; A. Wieczorek; W. Wi?licki; M. Zieli?ski; N. Zo?

2015-02-26T23:59:59.000Z

173

E-Print Network 3.0 - autoactivation pet imaging Sample Search...  

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

Vol. 5, No. 4, 278279. 2003 Summary: a critical structure by position emission tomography (PET) imaging and verify multimodality image... tubing. The device was assessed for...

174

Size Effect on Nuclear Gamma-Ray Energy Spectra Acquired by Different Sized CeBr3, LaBr3:Ce, and NaI:Tl Gamma-Ray Detectors  

SciTech Connect (OSTI)

Gamma-ray energy spectra were acquired for different sizes of cerium tribromide (CeBr3), cerium-doped lanthanum tribromide (LaBr3:Ce), and thallium-doped sodium iodide (NaI:Tl) detectors. A comparison was conducted of the energy resolution and detection efficiency of these scintillator detectors for different sizes of detectors. The results of this study are consistent with the observation that for each size detector, LaBr3:Ce offers better resolution than either a CeBr3 or NaI:Tl detector of the same size. In addition, CeBr3 and LaBr3:Ce detectors could resolve some closely spaced peaks in the spectra of several radioisotopes that NaI:Tl could not. As the detector size increased, all three detector materials exhibited higher efficiency, albeit with slightly reduced resolution. Significantly, the very low intrinsic activity of CeBr3 is also demonstrated in this study, which, when combined with energy resolution characteristics for a range of detector sizes, could lead to an improved ability to detect special nuclear materials compared to the other detectors.

Guss, Paul [NSTec; Reed, Michael [NSTec; Yuan, Ding [NSTec; Beller, Denis [UNLV; Cutler, Matthew [UNLV; Contreras, Chris [UNLV; Mukhopadhyay, Sanjoy [NSTec; Wilde, Scott UNLV

2014-03-01T23:59:59.000Z

175

MS 211 -CALCULO NUMERICO -1o http://www.ime.unicamp.br/ ms211/  

E-Print Network [OSTI]

MS 211 - C´ALCULO NUM´ERICO - 1o SEM/2010 http://www.ime.unicamp.br/ ms211/ Turma Per triangulares. Elimina¸c~ao de Gauss. Pivoteamento Parcial. Decomposi¸c~ao LU. M´etodos iterativos de Jacobi e¸c~ao num´erica. 4. Equa¸c~oes n~ao-lineares: M´etodo da bissec¸c~ao . M´etodo de Newton. M´etodo da Secante

Sussner, Peter

176

A mathematical model of a Zn/Br? cell on charge  

E-Print Network [OSTI]

to the Continuous Model for the Copper Electrowinning Example Vll. Demonstration that the Effective Separator Thickness is an Independent Parameter Vill. Comparison of' the One Step to the Continuous Model for the Zn 'Brs Cell 6 o 70 IX. Current Densities... Subject: Chemical Engineering A MATHEMATICAL MODEL OF A ZN, 'BR, CELL ON CHARGE A Thesi bt MICHAEL JOSEPH MADER Approved as to style and content by: Ralph E. 6'hite (Chairman of Committee) Charles lover Bart Childs (Mentber) Charles D. H lland...

Mader, Michael Joseph

2012-06-07T23:59:59.000Z

177

Investigation into Nanostructured Lanthanum Halides and CeBr{sub 3} for Nuclear Radiation Detection  

SciTech Connect (OSTI)

This slide-show presents work on radiation detection with nanostructured lanthanum halides and CeBr{sub 3}. The goal is to extend the gamma energy response on both low and high-energy regimes by demonstrating the ability to detect low-energy x-rays and relatively high-energy activation prompt gamma rays simultaneously using the nano-structured lanthanum bromide, lanthanum fluoride, cerium bromide, or other nanocrystal material. Homogeneous and nano structure cases are compared.

Guss, P., Guise, R., Mukhopadhyay, S., Yuan, D.

2011-06-22T23:59:59.000Z

178

Abundances of s-process elements in planetary nebulae: Br, Kr & Xe  

E-Print Network [OSTI]

We identify emission lines of post-iron peak elements in very high signal-to-noise spectra of a sample of planetary nebulae. Analysis of lines from ions of Kr and Xe reveals enhancements in most of the PNe, in agreement with the theories of s-process in AGB star. Surprisingly, we did not detect lines from Br even though s-process calculations indicate that it should be produced with Kr at detectable levels.

Y. Zhang; R. Williams; E. Pellegrini; K. Cavagnolo; J. A. Baldwin; B. Sharpee; M. Phillips; X. -W. Liu

2006-05-06T23:59:59.000Z

179

cnEiFrnr,:-BR,1;q*tsE ns John Franks  

E-Print Network [OSTI]

cnEiFrnr,:- BR,1;q*tsE ns Acid rain John Franks The liDk betwccn sulphur at|d dtrogen odde5 sofe.i,rc fro; th..f..ts torhesethe6xh6ustsofmiilionsol porlol of acid rain, little has been don. Acid rain was mntioned by Bdish chemistRobenAngus Smirhas a factor in lhe air a.ound Manchesterand 'cor

Short, Daniel

180

The effects of demographics and pet ownership on attachment towards and opinion about owned and unowned free-roaming cats  

E-Print Network [OSTI]

A telephone questionnaire was developed to collect information on pet owners, cat ownership patterns, and people's opinions about homeless pets. A 7-day observation log was also developed to gather information about free-roaming cats in Caldwell, TX...

Ramon, Melanie Elaine

2009-05-15T23:59:59.000Z

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


181

Optimization of electrode characteristics for the Br2/H2 redox flow cell  

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

The Br2/H2 redox flow cell shows promise as a high-power, low-cost energy storage device. The effect of various aspects of material selection, processing, and assembly of electrodes on the operation, performance, and efficiency of the system is determined. In particular, (+) electrode thickness, cell compression, hydrogen pressure, and (?) electrode architecture are investigated. Increasing hydrogen pressure and depositing the (?) catalyst layer on the membrane instead of on the carbon paper backing layers have a large positive impact on performance, enabling a limiting current density above 2 A cm?2 and a peak power density of 1.4 W cm?2. Maximum energy efficiency of 79 % is achieved. In addition, the root cause of limiting-current behavior in this system is elucidated, where it is found that Br? reversibly adsorbs at the Pt (?) electrode for potentials exceeding a critical value, and the extent of Br? coverage is potential-dependent. This phenomenon limits maximum cell current density and must be addressed in system modeling and design. These findings are expected to lower system cost and enable higher efficiency.

Tucker, Michael C.; Cho, Kyu Taek; Weber, Adam Z.; Lin, Guangyu; Nguyen, Trung V.

2014-10-01T23:59:59.000Z

182

Spin polarized current injection through HgBr{sub 2} intercalated Bi2212 intrinsic Josephson junctions.  

SciTech Connect (OSTI)

To investigate the effect of polarized current on tunneling characteristics of intrinsic Josephson junctions (IJJs), spin-polarized and spin-degenerate current have been injected through the c-axis of HgBr{sub 2} intercalated Bi{sub 2.1}Sr{sub 1.5}Ca{sub 1.4}Cu{sub 2}O{sub 8+delta} (Bi2212) single crystals on which 10 times 10 mum{sup 2} mesas have been fabricated. These two spin conditions are achieved by depositing either Au (15 nm)/Co (80 nm)/Au (156 nm) multilayers or single Au film on HgBr{sub 2} intercalated Bi2212 with T{sub c} = 74 K followed by photolithography and Ar ion beam etching. The I-V characteristics have been measured with and without a magnetic field parallel to c-axis at 4.2 K. A fine, soft Au wire is used to make a gentle mechanical contact on the top of a particular mesa in the array. Tunneling conductance characteristics were obtained and the magnetic field dependence of sumgap voltage peaks was investigated. These peaks do not change in position with increasing magnetic field for both contact configurations. In addition, the temperature dependence of tunneling characteristics of the IJJs are obtained and existence of pseudogap feature is observed above T{sub c} for HgBr{sub 2} intercalated Bi2212.

Ozyuzer, L.; Kurter, C.; Ozdemir, M.; Zasadzinski, J. F.; Gray, K. E.; Hinks, D. G. (Materials Science Division); (Izmir Inst. of Tech.); (Illinois Inst. of Tech.)

2007-06-01T23:59:59.000Z

183

Geothermal br Resource br Area Geothermal br Resource br Area...  

Open Energy Info (EERE)

Basalt K Eburru Geothermal Area Eburru Geothermal Area East African Rift System Kenya Rift Basalt Fukushima Geothermal Area Fukushima Geothermal Area Northeast Honshu Arc...

184

Validation of a 4D-PET Maximum Intensity Projection for Delineation of an Internal Target Volume  

SciTech Connect (OSTI)

Purpose: The delineation of internal target volumes (ITVs) in radiation therapy of lung tumors is currently performed by use of either free-breathing (FB) {sup 18}F-fluorodeoxyglucose-positron emission tomography-computed tomography (FDG-PET/CT) or 4-dimensional (4D)-CT maximum intensity projection (MIP). In this report we validate the use of 4D-PET-MIP for the delineation of target volumes in both a phantom and in patients. Methods and Materials: A phantom with 3 hollow spheres was prepared surrounded by air then water. The spheres and water background were filled with a mixture of {sup 18}F and radiographic contrast medium. A 4D-PET/CT scan was performed of the phantom while moving in 4 different breathing patterns using a programmable motion device. Nine patients with an FDG-avid lung tumor who underwent FB and 4D-PET/CT and >5 mm of tumor motion were included for analysis. The 3 spheres and patient lesions were contoured by 2 contouring methods (40% of maximum and PET edge) on the FB-PET, FB-CT, 4D-PET, 4D-PET-MIP, and 4D-CT-MIP. The concordance between the different contoured volumes was calculated using a Dice coefficient (DC). The difference in lung tumor volumes between FB-PET and 4D-PET volumes was also measured. Results: The average DC in the phantom using 40% and PET edge, respectively, was lowest for FB-PET/CT (DCAir = 0.72/0.67, DCBackground 0.63/0.62) and highest for 4D-PET/CT-MIP (DCAir = 0.84/0.83, DCBackground = 0.78/0.73). The average DC in the 9 patients using 40% and PET edge, respectively, was also lowest for FB-PET/CT (DC = 0.45/0.44) and highest for 4D-PET/CT-MIP (DC = 0.72/0.73). In the 9 lesions, the target volumes of the FB-PET using 40% and PET edge, respectively, were on average 40% and 45% smaller than the 4D-PET-MIP. Conclusion: A 4D-PET-MIP produces volumes with the highest concordance with 4D-CT-MIP across multiple breathing patterns and lesion sizes in both a phantom and among patients. Freebreathing PET/CT consistently underestimates ITV when compared with 4D PET/CT for a lesion affected by respiration.

Callahan, Jason, E-mail: jason.callahan@petermac.org [Centre for Molecular Imaging, Peter MacCallum Cancer Centre, East Melbourne, Victoria (Australia)] [Centre for Molecular Imaging, Peter MacCallum Cancer Centre, East Melbourne, Victoria (Australia); Kron, Tomas [Department of Physical Sciences, Peter MacCallum Cancer Centre, East Melbourne, Victoria (Australia) [Department of Physical Sciences, Peter MacCallum Cancer Centre, East Melbourne, Victoria (Australia); Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne (Australia); Schneider-Kolsky, Michal [Department of Medical Imaging and Radiation Science, Monash University, Clayton, Victoria (Australia)] [Department of Medical Imaging and Radiation Science, Monash University, Clayton, Victoria (Australia); Dunn, Leon [Department of Applied Physics, RMIT University, Melbourne (Australia)] [Department of Applied Physics, RMIT University, Melbourne (Australia); Thompson, Mick [Centre for Molecular Imaging, Peter MacCallum Cancer Centre, East Melbourne, Victoria (Australia)] [Centre for Molecular Imaging, Peter MacCallum Cancer Centre, East Melbourne, Victoria (Australia); Siva, Shankar [Department of Radiation Oncology, Peter MacCallum Cancer Centre, East Melbourne, Victoria (Australia)] [Department of Radiation Oncology, Peter MacCallum Cancer Centre, East Melbourne, Victoria (Australia); Aarons, Yolanda [Department of Radiation Oncology, Peter MacCallum Cancer Centre, East Melbourne, Victoria (Australia) [Department of Radiation Oncology, Peter MacCallum Cancer Centre, East Melbourne, Victoria (Australia); Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne (Australia); Binns, David [Centre for Molecular Imaging, Peter MacCallum Cancer Centre, East Melbourne, Victoria (Australia)] [Centre for Molecular Imaging, Peter MacCallum Cancer Centre, East Melbourne, Victoria (Australia); Hicks, Rodney J. [Centre for Molecular Imaging, Peter MacCallum Cancer Centre, East Melbourne, Victoria (Australia) [Centre for Molecular Imaging, Peter MacCallum Cancer Centre, East Melbourne, Victoria (Australia); Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne (Australia)

2013-07-15T23:59:59.000Z

185

Arbib, Fagg and Grafton: Synthetic PET Imaging for Grasping May 20, 2001 1 Arbib, M.A., Fagg, A.H., and Grafton, S.T., to appear, Synthetic PET Imaging for Grasping: From  

E-Print Network [OSTI]

Arbib, Fagg and Grafton: Synthetic PET Imaging for Grasping May 20, 2001 1 Arbib, M.A., Fagg, A.H., and Grafton, S.T., to appear, Synthetic PET Imaging for Grasping: From Primate Neurophysiology to Human, Eds.), Cambridge MA: The MIT Press. Synthetic PET Imaging for Grasping: From Primate Neurophysiology

Massachusetts at Amherst, University of

186

Memory Consumption Analysis for the GOE and PET Unequal Erasure Protection Schemes  

E-Print Network [OSTI]

Memory Consumption Analysis for the GOE and PET Unequal Erasure Protection Schemes Aline Roumy Encoding Transmission (PET) [2], while the other family uses a dedicated signaling scheme, as is the case such a practical metric as the peak memory consumption. Thanks to a modeling of the packet storage behavior

Paris-Sud XI, Université de

187

J Nucl Med . Author manuscript Impact of tumor size and tracer uptake heterogeneity in (18)F-FDG PET and  

E-Print Network [OSTI]

in (18)F-FDG PET and CT non-small cell lung cancer tumor delineation Mathieu Hatt 1 * , Catherine Cheze@univ-brest.fr > Abstract The objectives of this study were to investigate the relationship between CT and 18F-FDG PET based tumor volumes in NSCLC and the impact of tumor size and uptake heterogeneity on various PET uptake

Paris-Sud XI, Université de

188

IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 16, NO. 2, APRIL 1997 137 Motion Correction of PET Images  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 16, NO. 2, APRIL 1997 137 Motion Correction of PET--Positron emission tomography (PET) is a relatively lengthy brain imaging method. Because it is difficult. The technique associates the incoming data with the real-space position of the head. During the PET scan

Thompson, Chris

189

VISUALIZING ALL THE FITS: EVALUATING THE QUALITY AND PRECISION OF PARAMETRIC IMAGES CREATED FROM DIRECT RECONSTRUCTION OF PET  

E-Print Network [OSTI]

DIRECT RECONSTRUCTION OF PET SINOGRAM DATA Evan D. Morris1 , Mustafa E Kamasak2 , Bradley T. Christian3-fitted curves. The size of the data set involved (4D PET data) presents unique problems in the visualization to the PET sinograms in orders to evaluate the precision of the parametric images and the validity kinetic

190

Robustness of intratumour 18F-FDG PET uptake heterogeneity quantification for therapy response prediction in ooesophageal carcinoma  

E-Print Network [OSTI]

1 Robustness of intratumour 18F-FDG PET uptake heterogeneity quantification for therapy response title: Robustness of FDG PET tumour heterogeneity quantification Corresponding author: M. Hatt, INSERM;2 ABSTRACT: PURPOSE: Intra-tumour uptake heterogeneity in PET quantified through textural features

Brest, Université de

191

Abstract--GATE, the Geant4 Application for Tomographic Emission, is a simulation platform developed for PET and  

E-Print Network [OSTI]

for PET and SPECT. It combines a powerful simulation core (the Geant4 toolkit) and a large range-animal PET scanner configuration. Simulated resolution curves and reconstructed images are shown for rotating PET scanners. Lastly, we present comparisons of simulated point-spread functions and spectra

Paris-Sud XI, Université de

192

A New Non-Monotonic Algorithm for PET Image Reconstruction Suvrit Sra, Dongmin Kim, Inderjit Dhillon, and Bernhard Scholkopf  

E-Print Network [OSTI]

A New Non-Monotonic Algorithm for PET Image Reconstruction Suvrit Sra, Dongmin Kim, Inderjit we introduce NMML, a non-monotonic algorithm for maximum likelihood PET image reconstruction. NMML for PET, and new ones continue to be designed. Among these, methods based on the expectation maximization

Sra, Suvrit

193

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, VOL. 51, NO. 1, FEBRUARY 2004 85 Optimal Calibration of PET Crystal Position Maps  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, VOL. 51, NO. 1, FEBRUARY 2004 85 Optimal Calibration of PET, IEEE Abstract--A method is developed for estimating optimal PET gamma-ray detector crystal position liklihood estimation, positron emission tomography (PET). I. INTRODUCTION Acommon detector configuration

Johnson, Michael T.

194

3D Local Binary Pattern for PET image classification by SVM Application to early Alzheimer disease diagnosis  

E-Print Network [OSTI]

3D Local Binary Pattern for PET image classification by SVM Application to early Alzheimer disease of Fluorodeoxyglucose PET scans might become a possibility to make early diagnosis more efficient. Temporal and parietal lobes are the main location of medical findings. We have clues that in PET images these lobes contain

Paris-Sud XI, Université de

195

Pet owners have the responsibility to care for the well being of their animals. Your ability to  

E-Print Network [OSTI]

Pet owners have the responsibility to care for the well being of their animals. Your ability to care for an animal can help determine what kind of animal you select as a pet. Out-of-Town Emergency Pamphlet, "Emergency Preparedness for Your Pets," 2003. Veterinarians in Your County or City Name

196

Nuclear Instruments and Methods in Physics Research A 545 (2005) 427435 CYBPET: a cylindrical PET system for breast imaging  

E-Print Network [OSTI]

Nuclear Instruments and Methods in Physics Research A 545 (2005) 427­435 CYBPET: a cylindrical PET January 2005 Available online 28 March 2005 Abstract We propose a Cylindrical Breast PET (CYBPET) system of scattered photons from the other breast and the rest of the body. To compare the CYBPET with whole-body PET

Thompson, Chris

197

AUTOMATIC CLASSIFICATION OF ALZHEIMER'S DISEASE VS. FRONTOTEMPORAL DEMENTIA: A SPATIAL DECISION TREE APPROACH WITH FDG-PET  

E-Print Network [OSTI]

TREE APPROACH WITH FDG-PET N. Sadeghi1 , N. L. Foster2 , A. Y. Wang2 , S. Minoshima3 , A. P. Lieberman4 48109 ABSTRACT We introduce a novel approach for the automatic classifica- tion of FDG-PET scans-- Brain imaging, decision tree, FDG-PET, Alzheimer's Disease, Frontotemporal dementia. 1. INTRODUCTION

Utah, University of

198

Eur J Nucl Med Mol Imaging . Author manuscript The age of reason for FDG PET image-derived indices  

E-Print Network [OSTI]

Eur J Nucl Med Mol Imaging . Author manuscript Page /1 3 The age of reason for FDG PET image Author Keywords image derived parameters ; 18F-FDG-PET ; prediction ; prognosis ; therapy response The clinical use of Positron Emission Tomography (PET) imaging using the 2-deoxy-2-(18F

Paris-Sud XI, Université de

199

A High Resolution Monolithic Crystal, DOI, MR Compatible, PET Detector  

SciTech Connect (OSTI)

The principle objective of this proposal is to develop a positron emission tomography (PET) detector with depth-of-interaction (DOI) positioning capability that will achieve state of the art spatial resolution and sensitivity performance for small animal PET imaging. When arranged in a ring or box detector geometry, the proposed detector module will support <1 mm3 image resolution and >15% absolute detection efficiency. The detector will also be compatible with operation in a MR scanner to support simultaneous multi-modality imaging. The detector design will utilize a thick, monolithic crystal scintillator readout by a two-dimensional array of silicon photomultiplier (SiPM) devices using a novel sensor on the entrance surface (SES) design. Our hypothesis is that our single-ended readout SES design will provide an effective DOI positioning performance equivalent to more expensive dual-ended readout techniques and at a significantly lower cost. Our monolithic crystal design will also lead to a significantly lower cost system. It is our goal to design a detector with state of the art performance but at a price point that is affordable so the technology can be disseminated to many laboratories. A second hypothesis is that using SiPM arrays, the detector will be able to operate in a MR scanner without any degradation in performance to support simultaneous PET/MR imaging. Having a co-registered MR image will assist in radiotracer localization and may also be used for partial volume corrections to improve radiotracer uptake quantitation. The far reaching goal of this research is to develop technology for medical research that will lead to improvements in human health care.

Robert S Miyaoka

2012-03-06T23:59:59.000Z

200

Small animal simultaneous PET/MRI: initial experiences in a 9.4T microMRI  

SciTech Connect (OSTI)

We developed a non-magnetic positron-emission tomography (PET) device based on the rat conscious animal PET that operates in a small-animal magnetic resonance imaging (MRI) scanner, thereby enabling us to carry out simultaneous PET/MRI studies. The PET detector comprises 12 detector blocks, each being a 4 x 8 array of lutetium oxyorthosilicate crystals (2.22 x 2.22 x 5 mm{sup 3}) coupled to a matching non-magnetic avalanche photodiode array. The detector blocks, housed in a plastic case, form a 38 mm inner diameter ring with an 18 mm axial extent. Custom-built MRI coils fit inside the positron-emission tomography (PET) device, operating in transceiver mode. The PET insert is integrated with a Bruker 9.4 T 210 mm clear-bore diameter MRI scanner. We acquired simultaneous PET/MR images of phantoms, of in vivo rat brain, and of cardiac-gated mouse heart using [{sup 11}C]raclopride and 2-deoxy-2-[{sup 18}F]fluoro-d-glucose PET radiotracers. There was minor interference between the PET electronics and the MRI during simultaneous operation, and small effects on the signal-to-noise ratio in the MR images in the presence of the PET, but no noticeable visual artifacts. Gradient echo and high-duty-cycle spin echo radio frequency (RF) pulses resulted in a 7% and a 28% loss in PET counts, respectively, due to high PET counts during the RF pulses that had to be gated out. The calibration of the activity concentration of PET data during MR pulsing is reproducible within less than 6%. Our initial results demonstrate the feasibility of performing simultaneous PET and MRI studies in adult rats and mice using the same PET insert in a small-bore 9.4 T MRI.

Maramraju, S.H.; Schlyer, D.; Maramraju, S.H.; Smith, S.D.; Junnarkar, S.S.; Schulz, D.; Stoll, S.; Ravindranath, B.; Purschke, M.L.; Rescia, S.; Southekal, S.; Pratte, J.-F.; Vaska, P.; Woody, C.L.; Schlyer, D.J.

2011-03-25T23:59:59.000Z

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


201

Benefits Office: Phone: (352) 392-2HRS Fax: (352) 392-5166 E-mail: benefits@ufl.edu Pet Insurance  

E-Print Network [OSTI]

Benefits Office: Phone: (352) 392-2HRS Fax: (352) 392-5166 E-mail: benefits@ufl.edu Pet Insurance* Injury Plan $5/paycheck* $5/paycheck* Veterinary Pet Insurance ® Veterinary Pet Insurance® is the nation's oldest, largest and number one veterinarian-recommended pet health insurance provider. With comprehensive

Mair, Bernard A.

202

Migration of antimony from PET trays into food simulant and food: determination of Arrhenius parameters and comparison of predicted and measured migration data  

E-Print Network [OSTI]

Migration of antimony from PET trays into food simulant and food: determination of Arrhenius) Migration experiments with small sheets cut out from ovenable PET trays were performed in two-sided contact) was estimated to be 62% in the PET sample under study. Apparent diffusion coefficients of Sb in PET trays were

Short, Daniel

203

Nitrogen (N) pollution is common in urban systems and may accumulate through the use of fertilizer, pet waste, and atmospheric deposition.  

E-Print Network [OSTI]

of fertilizer, pet waste, and atmospheric deposition. N is primarily accumulated in urban washes when storms

Hall, Sharon J.

204

br Owner br Facility br Type br Capacity br MW br Commercial...  

Open Energy Info (EERE)

Magmatic Mendeleevskaya Geothermal Power Plant Ministry of Natural Resources of Russia Single Flash MW Mendeleevskaya Geothermal Area Kuril Kamchatka Arc Mindanao GEPP...

205

Calibration of photomultipliers gain used in the J-PET detector  

E-Print Network [OSTI]

Photomultipliers are commonly used in commercial PET scanner as devices which convert light produced in scintillator by gamma quanta from positron-electron annihilation into electrical signal. For proper analysis of obtained electrical signal, a photomultiplier gain curve must be known, since gain can be significantly different even between photomultipliers of the same model. In this article we describe single photoelectron method used for photomultipliers calibration applied for J-PET scanner, a novel PET detector being developed at the Jagiellonian University. Description of calibration method, an example of calibration curve and gain of few R4998 Hamamatsu photomultipliers are presented.

Bednarski, T; Moskal, P; Bia?as, P; Giergiel, K; Kap?on, ?; Kochanowski, A; Korcyl, G; Kowal, J; Kowalski, P; Kozik, T; Krzemie?, W; Molenda, M; Moskal, I; Nied?wiecki, Sz; Pa?ka, M; Pawlik, M; Raczy?ski, L; Rudy, Z; Salabura, P; Sharma, N G; Silarski, M; S?omski, A; Smyrski, J; Strzelecki, A; Szyma?ski, K; Wi?licki, W; Witkowski, P; Zieli?ski, M; Zo?, N

2013-01-01T23:59:59.000Z

206

B-R Colors of Globular Clusters in NGC 6166 (A2199)  

E-Print Network [OSTI]

We have analysed new R-band photometry of globular clusters in NGC 6166, the cD galaxy in the cooling flow cluster A2199. In combination with the earlier B photometry of Pritchet \\& Harris (1990), we obtain B$-$R colours for $\\sim$ 40 globular clusters in NGC 6166. The mean B$-$R is 1.26 $\\pm$ 0.11, corresponding to a mean [Fe/H] = $-$1 $\\pm$ 0.4. Given that NGC 6166 is one of the most luminous cD galaxies studied to date, our result implies significant scatter in the relationship between mean cluster [Fe/H] and parent galaxy luminosity. We obtain a globular cluster specific frequency of S$_N$ $\\sim$ 9, with a possible range between 5 and 18. This value is inconsistent with the value of S$_N$ $\\leq$ 4 determined earlier by Pritchet \\& Harris (1990) from B-band photometry, and we discuss possible reasons for the discrepancy. Finally, we reassess whether or not cooling flows are an important mechanism for forming globular clusters in gE/cD galaxies.

T. J. Bridges; D. Carter; W. E. Harris; C. J. Pritchet

1996-04-26T23:59:59.000Z

207

Fuel loading of PeBR for a long operation life on the lunar surface  

SciTech Connect (OSTI)

The Pellet Bed Reactor (PeBR) power system could provide 99.3 kW e to a lunar outpost for 66 full power years and is designed for no single point failures. The core of this fast energy spectrum reactor consists of three sectors that are neutronically and thermally coupled, but hydraulically independent. Each sector has a separate Closed Brayton Cycle (CBC) loop for energy conversion and separate water heat-pipes radiator panels for heat rejection. He-Xe (40 g/mole) binary gas mixture serves as the reactor coolant and CBC working fluid. On the lunar surface, the emplaced PeBR below grade is loaded with spherical fuel pellets (1-cm in dia.). It is launched unfueled and the pellets are launched in separate subcritical canisters, one for each core sector. This paper numerically simulates the transient loading of a core sector with fuel pellets on the Moon. The simulation accounts for the dynamic interaction of the pellets during loading and calculates the axial and radial distributions of the volume porosity in the sector. The pellets pack randomly with a volume porosity of 0.39 - 0.41 throughout most of the sector, except near the walls the local porosity is higher. (authors)

Schriener, T. M. [Inst. for Space and Nuclear Power Studies, Univ. of New Mexico, Albuquerque, NM (United States); Chemical and Nuclear Engineering Dept., Univ. of New Mexico, Albuquerque, NM (United States); El-Genk, M. S. [Inst. for Space and Nuclear Power Studies, Univ. of New Mexico, Albuquerque, NM (United States); Chemical and Nuclear Engineering Dept., Univ. of New Mexico, Albuquerque, NM (United States); Mechanical Engineering Dept., Univ. of New Mexico, Albuquerque, NM (United States)

2012-07-01T23:59:59.000Z

208

Performance simulation of a MRPC-based PET Imaging System  

E-Print Network [OSTI]

The low cost and high resolution gas-based Multi-gap Resistive Plate Chamber (MRPC) opens a new possibility to find an efficient alternative detector for Time of Flight (TOF) based Positron Emission Tomography, where the sensitivity of the system depends largely on the time resolution of the detector. Suitable converters can be used to increase the efficiency of detection of photons from annihilation. In this work, we perform a detailed GEANT4 simulation to optimize the converter thickness thereby improving the efficiency of photon conversion. Also we have developed a Monte Carlo based simulation of MRPC response thereby obtaining the intrinsic time resolution of the detector, making it possible to simulate the final response of MRPC-based systems for PET imaging. The result of the cosmic ray test of a four-gap Bakelite-based MRPC operating in streamer mode is discussed.

A. Banerjee; S. Chattopadhyay

2011-06-29T23:59:59.000Z

209

High temperature crystal structures and superionic properties of SrCl{sub 2}, SrBr{sub 2}, BaCl{sub 2} and BaBr{sub 2}  

SciTech Connect (OSTI)

The structural properties of the binary alkaline-earth halides SrCl{sub 2}, SrBr{sub 2}, BaCl{sub 2} and BaBr{sub 2} have been investigated from ambient temperature up to close to their melting points, using the neutron powder diffraction technique. Fluorite-structured SrCl{sub 2} undergoes a gradual transition to a superionic phase at 900-1100 K, characterised by an increasing concentration of anion Frenkel defects. At a temperature of 920(3) K, the tetragonal phase of SrBr{sub 2} undergoes a first-order transition to a cubic fluorite phase. This high temperature phase shows the presence of extensive disorder within the anion sublattice, which differs from that found in superionic SrCl{sub 2}. BaCl{sub 2} and BaBr{sub 2} both adopt the cotunnite crystal structure under ambient conditions. BaCl{sub 2} undergoes a first-order structural transition at 917(5) K to a disordered fluorite-structured phase. The relationship between the (disordered) crystal structures and the ionic conductivity behaviour is discussed and the influence of the size of the mobile anion on the superionic behaviour is explored. - Graphical abstract: Anomalous behaviour of the lattice expansion of SrCl{sub 2} at temperatures of {approx}1000 K is associated with the gradual transition to a superionic phase, whilst SrBr{sub 2} undergoes a first-order structural transition ({beta}{yields}{alpha}) to a fluorite-structured superionic phase at 920(3) K. Highlights: > Anomalous behaviour of the lattice expansion of SrCl{sub 2} occurs at temperatures {approx}1000 K. > Crystal structure of {beta}-SrBr{sub 2} is described in detail. > On heating, SrBr{sub 2} and BaCl{sub 2} transform to a fluorite-structured superionic phase. > Temperature dependence of the BaCl{sub 2} and BaBr{sub 2} structures is presented. > Nature of the superionic phases within the alkaline-earth halides is discussed.

Hull, Stephen, E-mail: stephen.hull@stfc.ac.uk [The ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX (United Kingdom); Norberg, Stefan T. [The ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX (United Kingdom); Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg (Sweden); Ahmed, Istaq; Eriksson, Sten G. [Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg (Sweden); Mohn, Chris E. [Department of Chemistry and Centre for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1033 Blindern, N-0315 Oslo (Norway)

2011-11-15T23:59:59.000Z

210

Radiation Dosimetry and Biodistribution in Monkey and Man of 11C-PBR28: A PET  

E-Print Network [OSTI]

Radiation Dosimetry and Biodistribution in Monkey and Man of 11C-PBR28: A PET Radioligand to Image, Vanderbilt University Medical Center Nashville, Nashville, Tennessee; and 3Department of Nuclear Medicine

Shen, Jun

211

E-Print Network 3.0 - amino groups pet Sample Search Results  

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

976-1098) are constructs made in pET... ... Source: Reddy, A.S.N - Department of Biology, Colorado State University Collection: Biology and Medicine ; Biotechnology 76 Program...

212

The effect of pet ownership/attachment on the stress level of multiple sclerosis patients  

E-Print Network [OSTI]

whether or not pet ownership and/or attachment influenced the perceived stress level and number of negative life events experienced by MS patients in the relapsing remitting stage. Participants were given a questionnaire that consisted of 7 surveys...

Loven, Ashley Marie

2005-11-01T23:59:59.000Z

213

An Input Function Estimation Method for FDG-PET Human Brain Studies 1  

E-Print Network [OSTI]

An Input Function Estimation Method for FDG-PET Human Brain Studies 1 Hongbin Guo ,2 Rosemary 85287-1804, Tel: 480-965-8002, Fax: 480-965-4160 Email addresses: hb guo@asu.edu (Hongbin Guo), renaut

Renaut, Rosemary

214

Dosimetry of Y-90 Liquid Brachytherapy in a Dog with Osteosarcoma Using PET/CT  

E-Print Network [OSTI]

receive a total dose of over 1000 Gy. Y-90 liquid brachytherapy has the potential to be used as an adjuvant therapy or for palliation purposes. Future work includes evaluation of pharmacokinetics of the Y-90 radiopharmaceutical, calibration of PET...

Zhou, Jingjie

2011-08-08T23:59:59.000Z

215

Microwave-assisted solvothermal synthesis of flower-like Ag/AgBr/BiOBr microspheres and their high efficient photocatalytic degradation for p-nitrophenol  

SciTech Connect (OSTI)

Flower-like Ag/AgBr/BiOBr microspheres were successfully fabricated by the approach of microwave-assisted solvothermal and in situ photo-assisted reduction. A reactive ionic liquid 1-hexadecyl-3-methylimidazolium bromide ([C{sub 16}mim]Br) was employed as Br source in the presence of surfactant polyvinylpyrrolidone (PVP). The photocatalytic activity of Ag/AgBr/BiOBr towards the decomposition of p-nitrophenol under visible light irradiation was evaluated. The results indicated that Ag/AgBr/BiOBr showed enhanced photocatalytic activity towards p-nitrophenol, comparing with P25, BiOBr and Ag/AgBr. More than 96% of p-nitrophenol was decomposed in 3.5 h under visible-light irradation. The excellent photocatalytic activity of flower-like Ag/AgBr/BiOBr microspheres can be attributed to the large specific surface area, strong visible-light absorption, suitable energy band structure and surface plasmon resonance effect of Ag nanoparticles. The possible photocatalytic mechanism was proposed based on the active species test and band gap structure analysis. - Graphical abstract: The photocatalytic reaction mechanisms of the as-prepared Ag/AgBr/BiOBr. Display Omitted - Highlights: Successful synthesis of flower-like Ag/AgBr/BiOBr microspheres. The Ag/AgBr/BiOBr showed much higher photocatalytic activity towards p-nitrophenol as compared to BiOBr and Ag/AgBr. The reasons for the excellent photocatalytic activity are the large specific surface area, strong visible-light absorption and surface plasmon resonance effect of Ag nanoparticles. The O{sub 2}{sup ?}, Br{sup 0} and photogenerated h{sup +} play key roles in the photocatalytic degradation process.

Li, Tingting, E-mail: tingtingli1983@hotmail.com [Department of Chemistry and Chemical Engineering, Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Changsha 410082 (China); State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082 (China); Department of Environment and Chemical Engineering, Key Laboratory of Jiangxi Province for Ecological Diagnosis, Remediation and Pollution Control, Nanchang Hangkong University, Nanchang 330063 (China); Luo, Shenglian, E-mail: sllou@hnu.edu.cn [Department of Chemistry and Chemical Engineering, Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Changsha 410082 (China); State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082 (China); Department of Environment and Chemical Engineering, Key Laboratory of Jiangxi Province for Ecological Diagnosis, Remediation and Pollution Control, Nanchang Hangkong University, Nanchang 330063 (China); Yang, Lixia [Department of Environment and Chemical Engineering, Key Laboratory of Jiangxi Province for Ecological Diagnosis, Remediation and Pollution Control, Nanchang Hangkong University, Nanchang 330063 (China)

2013-10-15T23:59:59.000Z

216

The impact of water flow configuration on crystallisation in LiBr/H2O absorption water heater  

SciTech Connect (OSTI)

Lithium Bromide (LiBr) strong solution entering the absorber tends to crystallise when the absorber temperature is increased for a fixed evaporating pressure. This is considered the key technical barrier for the development of a LiBr absorption heat pump water heater. There are several approaches to avoid the crystallisation problem, such as chemical crystallisation inhibitors, heat and mass transfer enhancement and thermodynamic cycle modification. This paper investigates and compares two flow configurations of LiBr absorption heat pump water heater to evaluate the allowable operating conditions for each. The simulation results indicated that introducing the process water through the absorber first results in lower absorber temperature and hence less tendency for crystallisation.

Wang, Kai [ORNL; Abdelaziz, Omar [ORNL; Vineyard, Edward Allan [ORNL

2011-03-01T23:59:59.000Z

217

Breath gating of cardiac PET using 13N-NH3: An optimization  

E-Print Network [OSTI]

was carried out using 13 N-NH3 on two dierent PET/CT scanners: a Siemens Biograph 64 and a Siemens mCT PET. In this project the breath-motion was estimated using an ane transformation on the obtained images, from which- jekt er udført ved brug af 13 N-NH3 på to skannere, henholdsvis en Siemens Biograph 64 og en Siemens m

218

System Response Kernel Calculation for List-mode Reconstruction in Strip PET Detector  

E-Print Network [OSTI]

Reconstruction of the image in Positron Emission Tomographs (PET) requires the knowledge of the system response kernel which describes the contribution of each pixel (voxel) to each tube of response (TOR). This is especially important in list-mode reconstruction systems, where an efficient analytical approximation of such function is required. In this contribution, we present a derivation of the system response kernel for a novel 2D strip PET.

Bia?as, P; Strzelecki, A; Bednarski, T; Czerwi?ski, E; Kap?on, ?; Kochanowski, A; Korcyl, G; Kowalski, P; Kozik, T; Krzemie?, W; Molenda, M; Moskal, P; Nied?wiecki, Sz; Pa?ka, M; Pawlik, M; Raczy?ski, L; Rudy, Z; Salabura, P; Sharma, N G; Silarski, M; S?omski, A; Smyrski, J; Wi?licki, W; Zieli?ski, M

2013-01-01T23:59:59.000Z

219

F-18 Labeled Diabody-Luciferase Fusion Proteins for Optical-ImmunoPET  

SciTech Connect (OSTI)

The goal of the proposed work is to develop novel dual-labeled molecular imaging probes for multimodality imaging. Based on small, engineered antibodies called â??diabodiesâ?, these probes will be radioactively tagged with Fluorine-18 for PET imaging, and fused to luciferases for optical (bioluminescence) detection. Performance will be evaluated and validated using a prototype integrated optical-PET imaging system, OPET. Multimodality probes for optical-PET imaging will be based on diabodies that are dually labeled with 18F for PET detection and fused to luciferases for optical imaging. 1) Two sets of fusion proteins will be built, targeting the cell surface markers CEA or HER2. Coelenterazine-based luciferases and variant forms will be evaluated in combination with native substrate and analogs, in order to obtain two distinct probes recognizing different targets with different spectral signatures. 2) Diabody-luciferase fusion proteins will be labeled with 18F using amine reactive [18F]-SFB produced using a novel microwave-assisted, one-pot method. 3) Sitespecific, chemoselective radiolabeling methods will be devised, to reduce the chance that radiolabeling will inactivate either the target-binding properties or the bioluminescence properties of the diabody-luciferase fusion proteins. 4) Combined optical and PET imaging of these dual modality probes will be evaluated and validated in vitro and in vivo using a prototype integrated optical-PET imaging system, OPET. Each imaging modality has its strengths and weaknesses. Development and use of dual modality probes allows optical imaging to benefit from the localization and quantitation offered by the PET mode, and enhances the PET imaging by enabling simultaneous detection of more than one probe.

Wu, Anna M

2013-01-18T23:59:59.000Z

220

State-of-the-Art Review on Crystallization Control Technologies for water/LiBr Absorption Heat Pumps  

SciTech Connect (OSTI)

The key technical barrier to using water/lithium bromide (LiBr) as the working fluid in aircooled absorption chillers and absorption heat-pump systems is the risk of crystallization when the absorber temperature rises at fixed evaporating pressure. This article reviews various crystallization control technologies available to resolve this problem: chemical inhibitors, heat and mass transfer enhancement methods, thermodynamic cycle modifications, and absorption system-control strategies. Other approaches, such as boosting absorber pressure and J-tube technology, are reviewed as well. This review can help guide future efforts to develop water/LiBr air-cooled absorption chillers and absorption heatpump systems.

Wang, Kai [ORNL; Abdelaziz, Omar [ORNL; Kisari, Padmaja [ORNL; Vineyard, Edward Allan [ORNL

2011-01-01T23:59:59.000Z

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


221

LiCl Dehumidifier LiBr absorption chiller hybrid air conditioning system with energy recovery  

DOE Patents [OSTI]

This invention relates to a hybrid air conditioning system that combines a solar powered LiCl dehumidifier with a LiBr absorption chiller. The desiccant dehumidifier removes the latent load by absorbing moisture from the air, and the sensible load is removed by the absorption chiller. The desiccant dehumidifier is coupled to a regenerator and the desiccant in the regenerator is heated by solar heated hot water to drive the moisture therefrom before being fed back to the dehumidifier. The heat of vaporization expended in the desiccant regenerator is recovered and used to partially preheat the driving fluid of the absorption chiller, thus substantially improving the overall COP of the hybrid system.

Ko, Suk M. (Huntsville, AL)

1980-01-01T23:59:59.000Z

222

Infrared phonon modes in multiferroic single-crystal FeTe2O5Br  

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

Reflection and transmission as a function of temperature (7300 K and 5300 K respectively) have been measured on single crystals of the multiferroic compound FeTe2O5Br utilizing light spanning from the far infrared to the visible. The complex dielectric function and other optical properties were obtained via Kramers-Kronig analysis and by fits to a Drude-Lortentz model. Analysis of the anisotropic excitation spectra via Drude-Lorentz fitting and lattice dynamical calculations have led to the observation of 43 of the 53 modes predicted along the b axis of the monoclinic cell. The phonon response parallel to the a and c axes are also presented. Assignments to groups (clusters) of phonons have been made and trends within them are discussed in light of our calculated displacement patterns.

Miller, K. H.; Xu, X. S.; Berger, H.; Craciun, V.; Xi, Xiaoxiang; Martin, C.; Carr, G. L.; Tanner, D. B.

2013-06-01T23:59:59.000Z

223

Synthesis, crystal structure, spectroscopic and thermal properties of [Et{sub 4}N][Ta{sub 6}Br{sub 12}(H{sub 2}O){sub 6}]Br{sub 4}.4H{sub 2}O (Et=ethyl)-A new compound with the paramagnetic [Ta{sub 6}Br{sub 12}]{sup 3+} cluster core  

SciTech Connect (OSTI)

A new hexanuclear cluster compound, [Et{sub 4}N][Ta{sub 6}Br{sub 12}(H{sub 2}O){sub 6}]Br{sub 4}.4H{sub 2}O (Et=ethyl) (1), with the paramagnetic [Ta{sub 6}Br{sub 12}]{sup 3+} cluster entity, was synthesized and characterized by elemental and TG/DTA analyses, IR and UV/Vis spectroscopy and by a single-crystal X-ray diffraction study. The presence of the paramagnetic [Ta{sub 6}Br{sub 12}]{sup 3+} unit was confirmed also by the room-temperature magnetic and EPR measurements. The compound crystallizes in the tetragonal I4{sub 1}/a space group, with a=14.299(5), c=21.241(5) A, Z=4, R{sub 1}(F)/wR{sub 2}(F{sup 2})=0.0296/0.0811. The structure contains discrete [Ta{sub 6}Br{sub 12}(H{sub 2}O){sub 6}]{sup 3+} cations with an octahedron of metal atoms edge-bridged by bromine atoms and with water molecules occupying all six terminal positions. The cluster units are positioned in the vertices of the three-dimensional (pseudo)diamond lattice. The structure shows similarities with literature reported structures of cluster compounds crystallizing in the diamond (Fd3-barm) space group. - Graphical abstract: Two interpenetrating (pseudo)diamond nets formed by packing of the paramagnetic [Ta{sub 6}Br{sub 12}(H{sub 2}O)]{sup 3+} (octahedral) and diamagnetic [Et{sub 4}N]{sup +} (spheres) cations.

Peric, Berislav, E-mail: bperic@irb.h [Ruder Boskovic Institute, Bijenicka cesta 54, 10000 Zagreb (Croatia); Jozic, Drazan [Ruder Boskovic Institute, Bijenicka cesta 54, 10000 Zagreb (Croatia); Planinic, Pavica, E-mail: planinic@irb.h [Ruder Boskovic Institute, Bijenicka cesta 54, 10000 Zagreb (Croatia); Brnicevic, Nevenka [Ruder Boskovic Institute, Bijenicka cesta 54, 10000 Zagreb (Croatia); Giester, Gerald [Institut fuer Mineralogie und Kristallographie, Universitaet Wien-Geozentrum Althanstrasse, 14, 1090 Wien (Austria)

2009-09-15T23:59:59.000Z

224

Core-to-valence spectroscopic detection of the CH{sub 2}Br radical and element-specific femtosecond photodissociation dynamics of CH{sub 2}IBr  

SciTech Connect (OSTI)

Element-specific single photon photodissociation dynamics of CH{sub 2}IBr and core-to-valence absorption spectroscopy of CH{sub 2}Br radicals are investigated using femtosecond high-harmonic extreme ultraviolet (XUV) transient absorption spectroscopy. Photodissociation of CH{sub 2}IBr along both the CI or CBr reaction coordinates is observed in real-time following excitation at 266 nm. At this wavelength, CI dissociation is the dominant reaction channel and CBr dissociation is observed as a minor pathway. Both photodissociation pathways are probed simultaneously through individual 4d(I) N{sub 4/5} and 3d(Br) M{sub 4/5} core-to-valence transitions. The 3d(Br) M{sub 4/5} pre-edge absorption spectrum of the CH{sub 2}Br radical photoproduct corresponding to the CI dissociation channel is characterized for the first time. Although the radical's singly occupied molecular orbital (SOMO) is mostly localized on the central carbon atom, the 3d(Br) ? ?{sup *}(SOMO) resonances at 68.5 eV and 69.5 eV are detected 2 eV below the parent molecule 3d(Br) ? ?{sup *}(LUMO) transitions. Core-to-valence XUV absorption spectroscopy provides a unique probe of the local electronic structure of the radical species in reference to the Br reporter atom. The measured times for CI dissociation leading to I and I{sup *} atomic products are 48 12 fs and 44 4 fs, respectively, while the measured CBr dissociation time leading to atomic Br is 114 17 fs. The investigation performed here demonstrates the capability of femtosecond time-resolved core-level spectroscopy utilizing multiple reporter atoms simultaneously.

Attar, Andrew R.; Piticco, Lorena [Department of Chemistry, University of California, Berkeley, California 94720 (United States); Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Leone, Stephen R. [Department of Chemistry, University of California, Berkeley, California 94720 (United States); Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Department of Physics, University of California, Berkeley, California 94720 (United States)

2014-10-28T23:59:59.000Z

225

HPHC COL-06-MA-BR-2010 20-1649-2 Coverage underwritten by HPHC Insurance Company, Inc., an affiliate  

E-Print Network [OSTI]

HPHC COL-06-MA-BR-2010 20-1649-2 Coverage underwritten by HPHC Insurance Company, Inc;#12;Welcome to the Harvard Pilgrim Student Health Plan. Your Plan is offered by HPHC Insurance Company at www.uhcsr.com. The web site will allow you to easily search for providers by specialty and location

Mountziaris, T. J.

226

Appointed BrOadcast (ABO): Reducing Routing Overhead in IEEE 802.11 Mobile Ad Hoc Networks  

E-Print Network [OSTI]

1 Appointed BrOadcast (ABO): Reducing Routing Overhead in IEEE 802.11 Mobile Ad Hoc Networks Chun-enhanced and standard IEEE 802.11 nodes can coexist in a MANET is also discussed. Keywords: mobile ad hoc network, promiscuous mode, broadcast, IEEE 802.11, routing. #12;2 1. Introduction In mobile ad hoc networks (MANETs

Chen, Sheng-Wei

227

Ag/AgBr/g-C{sub 3}N{sub 4}: A highly efficient and stable composite photocatalyst for degradation of organic contaminants under visible light  

SciTech Connect (OSTI)

Graphical abstract: Ag/AgBr/g-C{sub 3}N{sub 4} composite photocatalysts displayed excellent photocatalytic activities on the degradation of methyl orange (MO) under visible light. The improved photocatalytic performance and stability of Ag/AgBr/g-C{sub 3}N{sub 4} originated from the synergetic effects of AgBr/g-C{sub 3}N{sub 4} interface and metallic Ag nanoparticles. O{sub 2}?, one of the reactive species, was responsible for the photodegradation of MO compared to H+ and OH. - Highlights: Novel Ag/AgBr/g-C{sub 3}N{sub 4} composite photocatalyst was reported. Ag/AgBr/g-C{sub 3}N{sub 4} had novel energy band combination between AgBr and g-C{sub 3}N{sub 4}. Synergetic effects of AgBr/g-C{sub 3}N{sub 4} interface and metallic Ag nanoparticles. Electron trapping role of metallic Ag dominated the stability of Ag/AgBr/g-C{sub 3}N{sub 4}. - Abstract: Novel Ag/AgBr/g-C{sub 3}N{sub 4} composite photocatalysts were constructed via depositionprecipitation method and extensively characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM) and UVvis diffuse reflectance spectroscopy (DRS). Under visible light (? > 420 nm), Ag/AgBr/g-C{sub 3}N{sub 4} composite photocatalysts displayed much higher photocatalytic activities than those of Ag/AgBr and g-C{sub 3}N{sub 4} for degradation of methyl orange (MO). 50% Ag/AgBr/g-C{sub 3}N{sub 4} presented the best photocatalytic performance, which was mainly attributed to the synergistic effects of AgBr/g-C{sub 3}N{sub 4} interface and the in situ metallic Ag nanoparticles for efficiently separating electronhole pairs. Furthermore, Ag/AgBr/g-C{sub 3}N{sub 4} remained good photocatalytic activity through 5 times of cycle experiments. Additionally, the radical scavengers experiment indicated that O{sub 2}{sup ?} was the main reactive species for the MO degradation under visible light.

Cao, Jing, E-mail: caojing@mail.ipc.ac.cn [College of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, Anhui (China); State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100 (China); Zhao, Yijie; Lin, Haili; Xu, Benyan [College of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, Anhui (China); Chen, Shifu, E-mail: chshifu@chnu.edu.cn [College of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, Anhui (China)

2013-10-15T23:59:59.000Z

228

Effect of temperature on the release of intentionally and non-intentionally added substances from polyethylene terephthalate (PET) bottles into water  

E-Print Network [OSTI]

polyethylene terephthalate (PET) bottles into water: Chemical analysis and potential toxicity Cristina Bach a used for the bottling of drinking water is polyethylene terephthalate (PET). Since migra- tion can

Short, Daniel

229

Preventive maintenance system for the photomultiplier detector blocks of PET scanners  

DOE Patents [OSTI]

A system including a method and apparatus for preventive maintenance of PET scanner photomultiplier detector blocks is disclosed. The qualitative comparisons used in the method of the present invention to provide an indication in the form of a display or printout advising the user that the photomultiplier block is stable, intermittently unstable, or drifting unstable, and also advising of the expected date of failure of a photomultiplier block in the PET scanner. The system alerts the user to replace the defective photomultiplier block prior to catastrophic failure in a scheduled preventative maintenance program, thus eliminating expensive and unscheduled downtime of the PET scanner due to photomultiplier failure. The apparatus for carrying out the method of the present invention preferably resides in the host computer controlling a PET scanner. It includes a memory adapted for storing a record of a number of iterative adjustments that are necessary to calibrate the gain of a photomultiplier detector block i at a time t[sub 0], a time t[sub 1] and a time T, where T>t[sub 1]>t[sub 0], which is designated as Histo(i,j(t)). The apparatus also includes a processor configured by a software program or a combination of programmed RAM and ROM devices to perform a number of calculations and operations on these values, and also includes a counter for analyzing each photomultiplier detector block i=1 through I of a PET scanner. 40 figures.

Levy, A.V.; Warner, D.

1995-01-24T23:59:59.000Z

230

Preventive maintenance system for the photomultiplier detector blocks of pet scanners  

DOE Patents [OSTI]

A system including a method and apparatus for preventive maintenance of PET scanner photomultiplier detector blocks is disclosed. The quantitive comparisons used in the method of the present invention to provide an indication in the form of a display or printout advising the user that the photomultiplier block is stable, intermittently unstable, or drifting unstable, and also advising of the expected date of failure of a photomultiplier block in the PET scanner. The system alerts the user to replace the defective photomultiplier block prior to catastrophic failure in a scheduled preventative maintenance program, thus eliminating expensive and unscheduled downtime of the PET scanner due to photomultiplier failure. The apparatus for carrying out the method of the present invention preferably resides in the host computer controlling a PET scanner. It includes a memory adapted for storing a record of a number of iterative adjustments that are necessary to calibrate the gain of a photomultiplier detector block i at a time t.sub.0, a time t.sub.1 and a time T, where T>t.sub.1 >t.sub.0, which is designated as Histo(i,j(t)). The apparatus also includes a processor configured by a software program or a combination of programmed RAM and ROM devices to perform a number of calculations and operations on these values, and also includes a counter for analyzing each photomultiplier detector block i=1 through I of a PET scanner.

Levy, Alejandro V. (Center Moriches, NY); Warner, Donald (Shirley, NY)

1995-01-24T23:59:59.000Z

231

Chemical migration in drinking water stored in polyethylene terephthalate (PET) bottles: a source of controversy.  

E-Print Network [OSTI]

Due to its chemical inertness and physical properties PET is particularly suitable for food packaging applications, especially for drinking water. More bottled water is consumed than other bottled beverages. This article is a survey and toxicological investigation of chemical compounds, which are able to diffuse from PET bottles to water. The exact detailed chemical composition of plastic materials is known only from information provided by manufacturers. A declaration of conformity according to EC regulation no.10/2011 is required to ensure the safety of plastic materials in contact with foodstuffs. This regulation established a positive list of monomers and additives which are authorized for use in plastic materials. Some substances hal-00683918, version 1- 11 May 2012 are subject to restrictions and/or specifications according to their toxicological data. However, Non-Intentionally Added Substances (NIAS) not listed in this regulation such as breakdown products from monomers and additives and/or impurities found in initial polymerization reactants may be present in a PET bottle wall. Also, recycled PET can be a source of unknown chemical compounds found in water. All these substances may potentially migrate from the PET bottle wall to bottled water.

Cristina Bach A; Xavier Dauchy A; Marie-christine Chagnon C; Serge Etienne B

2012-01-01T23:59:59.000Z

232

Characterization studies of Silicon Photomultipliers and crystals matrices for a novel time of flight PET detector  

E-Print Network [OSTI]

This paper describes the characterization of crystal matrices and silicon photomultiplier arrays for a novel Positron Emission Tomography (PET) detector, namely the external plate of the EndoTOFPET-US system. The EndoTOFPET-US collaboration aims to integrate Time-Of-Flight PET with ultrasound endoscopy in a novel multimodal device, capable to support the development of new biomarkers for prostate and pancreatic tumors. The detector consists in two parts: a PET head mounted on an ultrasound probe and an external PET plate. The challenging goal of 1 mm spatial resolution for the PET image requires a detector with small crystal size, and therefore high channel density: 4096 LYSO crystals individually readout by Silicon Photomultipliers (SiPM) make up the external plate. The quality and properties of these components must be assessed before the assembly. The dark count rate, gain, breakdown voltage and correlated noise of the SiPMs are measured, while the LYSO crystals are evaluated in terms of light yield and en...

Auffray, Etiennette; Cortinovis, Daniele; Doroud, Katayoun; Garutti, Erika; Lecoq, Paul; Liu, Zheng; Martinez, Rosana; Paganoni, Marco; Pizzichemi, Marco; Silenzi, Alessandro; Xu, Chen; Zvolsk, Milan

2015-01-01T23:59:59.000Z

233

Atlas-based attenuation correction for small animal PET/MRI scanners Abhijit J. Chaudhari, ajchaudhari@ucdavis.edu,  

E-Print Network [OSTI]

Atlas-based attenuation correction for small animal PET/MRI scanners 1 Abhijit J. Chaudhari densities and not on electron densities. We propose a deformable mouse atlas-based registration method for AC in small animal PET/MRI. In this method, we first match the posture of the atlas to the posture

Leahy, Richard M.

234

IEEE TRIWSA~IONSON NUCLEAR SCIENCB,VOL. 47, NO. 3, JUNE 2000 1011 PerformanceResults of A PrototypeDepth-encoding PET Detector  

E-Print Network [OSTI]

Depth-encoding PET Detector L.J. Meng and D. Ramsden Department of Physics and Astronomy University of Southampton, Southampton, SO17 1BJ Abstract The results of a feasibility study for a high-resolution PET detector system simulation of the proposed small animal PET imager. I.INTRODUCTION It is well-known that a lack

He, Zhong

235

Nuclear Instruments and Methods in Physics Research A 571 (2007) 102105 Preliminary studies of a simultaneous PET/MRI scanner based on the  

E-Print Network [OSTI]

of a simultaneous PET/MRI scanner based on the RatCAP small animal tomograph C. Woodya,?, D. Schlyera , P. Vaskaa data using positron emission tomography (PET). The approach is based on the technology used for the RatCAP conscious small animal PET tomograph which utilizes block detectors consisting of pixelated arrays of LSO

236

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

E-Print Network [OSTI]

-4 Myocardial Blood Flow from Dynamic PET using Independent Component Analysis Alexander Karpikov, Hemant Tagare) from dynamic PET requires a reproducible and reliable method to obtain left and right ventricular time-activity curves. We propose the use of Independent Component Analysis (ICA) on PET temporal information to segment

Duncan, James S.

237

Eur J Nucl Med Mol Imaging. Author manuscript Non-invasive estimation of hepatic blood perfusion from H2 15O PET  

E-Print Network [OSTI]

perfusion from H2 15O PET images using tissue-derived arterial and portal input functions Kudomi Nobuyuki 1 Timo 2 , Knuuti Juhani 1 , Iida Hirokazu 3 , Nuutila Pirjo 1 4 , Iozzo Patricia 1 5 Turku PET Centre1 artery. When its perfusion is assessed using PET and O-labeled water15 (H O), calculations require a dual

Paris-Sud XI, Université de

238

Accuracy and Sensitivity of Detection of Activation Foci in the Brain via Statistical Parametric Mapping: A Study Using a PET Simulator  

E-Print Network [OSTI]

Mapping: A Study Using a PET Simulator Christos Davatzikos,* Henry H. Li,* Edward Herskovits,* and Susan M a realistic simulator of PET image formation, which accounted for the main physical processes in- volved in PET, including attenuation, scatter, ran- doms, Poisson noise, and limited detector resolution

Plotkin, Joshua B.

239

Abstract --An experimental small animal PET using two 3-D position sensitive CdZnTe detectors was developed and tested.  

E-Print Network [OSTI]

Abstract -- An experimental small animal PET using two 3-D position sensitive CdZnTe detectors scattering angle reconstruction are reported and discussed. I. INTRODUCTION onventional PET systems use, for molecular imaging and drug development using high resolution PET is gaining more and more interests. One

He, Zhong

240

Pet191 is a cytochrome c oxidase assembly factor in Saccharomyces cerevisiae1 Oleh Khalimonchuk, Kevin Rigby, Megan Bestwick, Fabien Pierrel, Paul A. Cobine and Dennis R.2  

E-Print Network [OSTI]

1 Pet191 is a cytochrome c oxidase assembly factor in Saccharomyces cerevisiae1 Oleh Khalimonchuk Running title: Role of Pet191 in Assembly of Complex IV8 9 * Address correspondence to: Dennis Winge protein Pet191 is essential for cytochrome c oxidase maturation. The motif14 Cys residues are functionally

Boyer, Edmond

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


241

PET Imaging of Brain 5-HT1A Receptors in Rat In Vivo with 18F-FCWAY and Improvement by  

E-Print Network [OSTI]

PET Imaging of Brain 5-HT1A Receptors in Rat In Vivo with 18F-FCWAY and Improvement by Successful)cyclohexanecarboxamide) is useful in clinical research with PET for measuring serotonin 1A (5-HT1A) re- ceptor densities in brain applicability to measuring brain regional 5-HT1A receptor densities. Methods: PET of rat head after

Shen, Jun

242

Controls for TTS identification using PET A series of controls were implemented in order to evaluate the potential contamination by internal priming in the  

E-Print Network [OSTI]

Controls for TTS identification using PET A series of controls were implemented in order to evaluate the potential contamination by internal priming in the set of PET-characterized TTS described here. In particular, Alu sequences contain two A-rich regions, the longer at their 3'-ends. As the PET technique

Jordan, King

243

Regional dynamics of -amyloid deposition in healthy elderly, Mild Cognitive Impairment and Alzheimer's disease: a voxelwise PiB-PET longitudinal study  

E-Print Network [OSTI]

and Alzheimer's disease: a voxelwise PiB-PET longitudinal study Nicolas Villain1,2,3,4 , Gaël Chételat1 CHU de Caen, U1077, Caen, France 5. Dept of Nuclear Medicine and Centre for PET, Austin Health, VIC;2 Corresponding author: Victor Villemagne, Department of Nuclear Medicine and Centre for PET, Austin Health, 145

Paris-Sud XI, Université de

244

A comprehensive plant-wide assessment of Amcor PET Packaging at Fairfield, California  

SciTech Connect (OSTI)

This report includes the results of the plant-wide assessment of AMCOR PET plants in Fairfield, City of Commerce, and Lathrop California. The project (except the assessment of Lathrop plant) was a cost shared effort between US Department of Energy through Golden Field Office, Golden CO and AMCOR PET Packaging Co. The DOE share of the plant-wide assessment cost was awarded to AMCOR PET in response to the RFP DE-PS36-05GO95009, the 2005 round of funding for Plant-Wide Energy Efficiency Opportunity Assessments. The plant-wide assessment included the processes, electrical and gas equipment. Current production practices have been evaluated against best practice standards, as well as utilization of modern technology to improve energy efficiency, reduce the wastes, and improve productivity.

Kevin Losh; Hui Choi; Yin Yin Wu; Bryan W. Hackett; Ahmad R. Ganji

2008-02-29T23:59:59.000Z

245

High Resolution PET with 250 micrometer LSO Detectors and Adaptive Zoom  

SciTech Connect (OSTI)

There have been impressive improvements in the performance of small-animal positron emission tomography (PET) systems since their first development in the mid 1990s, both in terms of spatial resolution and sensitivity, which have directly contributed to the increasing adoption of this technology for a wide range of biomedical applications. Nonetheless, current systems still are largely dominated by the size of the scintillator elements used in the detector. Our research predicts that developing scintillator arrays with an element size of 250 {micro}m or smaller will lead to an image resolution of 500 {micro}m when using 18F- or 64Cu-labeled radiotracers, giving a factor of 4-8 improvement in volumetric resolution over the highest resolution research systems currently in existence. This proposal had two main objectives: (i) To develop and evaluate much higher resolution and efficiency scintillator arrays that can be used in the future as the basis for detectors in a small-animal PET scanner where the spatial resolution is dominated by decay and interaction physics rather than detector size. (ii) To optimize one such high resolution, high sensitivity detector and adaptively integrate it into the existing microPET II small animal PET scanner as a 'zoom-in' detector that provides higher spatial resolution and sensitivity in a limited region close to the detector face. The knowledge gained from this project will provide valuable information for building future PET systems with a complete ring of very high-resolution detector arrays and also lay the foundations for utilizing high-resolution detectors in combination with existing PET systems for localized high-resolution imaging.

Cherry, Simon R.; Qi, Jinyi

2012-01-08T23:59:59.000Z

246

Measurement of electron capture and loss cross section for 41.67 MeV ??Br ions in H?  

E-Print Network [OSTI]

. The lab frame is the rest frame of the ion. . . . . . . . . . . . . . . . . 51 Schematic diagram of the Tandem Van de Graaff Accel- erator as used to accelerate 7 Br ions. . . . . , . . . . . . . . . . 52 Schematic diagram of experimental apparatus... of this century. Initial investigations concerned the pas- sage of protons and alpha particles through matter as these were essentially the only high speed particles available at that time. Consequently, much information has been accumulated concerning...

Burns, James Martin

1967-01-01T23:59:59.000Z

247

zimas para entender evoluo de leveduras -Terra Brasil 1/1...terra.com.br/.../cientistas-recriam-enzimas-para-entender-evolucao-de-leveduras,a996ed7e34c...  

E-Print Network [OSTI]

como enzima ligada ao câncer funciona http://noticias.terra.com.br/ciencia parte do tratamento contra... http://noticias.terra.com.br/ciencia evolução de cromossomos sexuais http://noticias.terra.com.br/ciencia

248

The Mercer Clinic Holiday Pet Basket program was started in 1995 by Veterinary Medical Teaching Hospital staff members of the "VOICE" staff newsletter. It has grown due to need over the years from only 25 baskets to 130  

E-Print Network [OSTI]

The Mercer Clinic Holiday Pet Basket program was started in 1995 by Veterinary Medical Teaching that every year we rely on the kindness of others to help these very special pets who are more than a pet this wonderful tradition alive by contributing any time of year to the Mercer Veterinary Clinic Holiday Pet

Schladow, S. Geoffrey

249

INDEPENDENT COMPONENT ANALYSIS AND BEYOND IN BRAIN IMAGING: EEG, MEG, FMRI, AND PET  

E-Print Network [OSTI]

INDEPENDENT COMPONENT ANALYSIS AND BEYOND IN BRAIN IMAGING: EEG, MEG, FMRI, AND PET Jagath C Technological University, Singapore ¾ Laboratory of Advanced Brain Signal Processing, Brain Science Institute@ntu.edu.sg, cia@bsp.brain.riken.go.jp, vdavidsanchez@earthlink.net Abstract There is an increasing interest

Vialatte, François

250

The need for clinical quantification of combined PET/MRI data in pediatric epilepsy  

E-Print Network [OSTI]

The need for clinical quantification of combined PET/MRI data in pediatric epilepsy Otto Muzik a,b,n , Darshan Pai c , Csaba Juhasz a , Jing Hua c a Department of Pediatrics, Wayne State University School of Medicine, Detroit, MI, USA b Department of Radiology, Wayne State University School of Medicine, Detroit

Hua, Jing

251

PET: A PErsonalized Trust Model with Reputation and Risk Evaluation for P2P Resource Sharing  

E-Print Network [OSTI]

PET: A PErsonalized Trust Model with Reputation and Risk Evaluation for P2P Resource Sharing the construction of a good cooperation, especially in the context of economic-based solutions for the P2P resource sharing. The trust model consists of two parts: reputation evaluation and risk evaluation. Reputation

Shi, Weisong

252

Combined 3D PET and Optical Projection Tomography Techniques for Plant Root Phenotyping  

E-Print Network [OSTI]

New imaging techniques are in great demand for investigating underground plant roots systems which play an important role in crop production. Compared with other non-destructive imaging modalities, PET can image plant roots in natural soil and produce dynamic 3D functional images which reveal the temporal dynamics of plant-environment interactions. In this study, we combined PET with optical projection tomography (OPT) to evaluate its potential for plant root phenotyping. We used a dedicated high resolution plant PET imager that has a 14 cm transaxial and 10 cm axial field of views, and multi-bed imaging capability. The image resolution is around 1.25 mm using ML-EM reconstruction algorithm. B73 inbred maize seeds were germinated and then grown in a sealed jar with transparent gel-based media. PET scanning started on the day when the first green leaf appeared, and was carried out once a day for 5 days. Each morning, around 10 mCi of 11CO2 was administrated into a custom built plant labeling chamber. After 10 ...

Wang, Qiang; Mathews, Aswin J; Li, Ke; Topp, Christopher; O'Sullivan, Joseph A; Tai, Yuan-Chuan

2015-01-01T23:59:59.000Z

253

Multiple scattering and accidental coincidences in the J-PET detector simulated using GATE package  

E-Print Network [OSTI]

Novel Positron Emission Tomography system, based on plastic scintillators, is developed by the J-PET collaboration. In order to optimize geometrical configuration of built device, advanced computer simulations are performed. Detailed study is presented of background given by accidental coincidences and multiple scattering of gamma quanta.

Kowalski, P; Wi?licki, W; Raczy?ski, L; Bednarski, T; Bia?as, P; Bu?ka, J; Czerwi?ski, E; Gajos, A; Gruntowski, A; Kami?ska, D; Kap?on, ?; Kochanowski, A; Korcyl, G; Kowal, J; Kozik, T; Krzemie?, W; Kubicz, E; Nied?wiecki, Sz; Pa?ka, M; Rudy, Z; Salabura, P; Sharma, N G; Silarski, M; S?omski, A; Smyrski, J; Strzelecki, A; Wieczorek, A; Wochlik, I; Zieli?ski, M; Zo?, N

2015-01-01T23:59:59.000Z

254

A method for OSEM PET Reconstruction on parallel architectures using STIR  

E-Print Network [OSTI]

. The results using a limited set of test data achieved speedups of up to 8x, depending on the amount of data the available test data. I. INTRODUCTION POSITRON Emission Tomography (PET) is extensively used in modern Lietsch and Kris Thielemans Abstract--To accelerate image reconstruction of positron emis- sion tomography

Hellebrand, Sybille

255

LQES Laboratrio de Qumica do Estado Slido Instituto de Qumica -UNICAMP http://lqes.iqm.unicamp.br Nanocincia e Nanotecnologia: um bom motivo para a  

E-Print Network [OSTI]

://lqes.iqm.unicamp.br Nanociência e Nanotecnologia: um bom motivo para a Cooperação Científica Brasil-Argentina Oswaldo Luiz Alves, Campinas, SP, Brasil. oalves@iqm.unicamp.br 1. Introdução A Nanociência e a Nanotecnologia (N&N) - áreas do, energia, tratamento de água (potabilidade), saúde pública, entre tantos outros3 . Uma das características

Campinas, Universidade Estadual de

256

A multifractal approach to space-filling recovery for PET quantification  

SciTech Connect (OSTI)

Purpose: A new image-based methodology is developed for estimating the apparent space-filling properties of an object of interest in PET imaging without need for a robust segmentation step and used to recover accurate estimates of total lesion activity (TLA). Methods: A multifractal approach and the fractal dimension are proposed to recover the apparent space-filling index of a lesion (tumor volume, TV) embedded in nonzero background. A practical implementation is proposed, and the index is subsequently used with mean standardized uptake value (SUV {sub mean}) to correct TLA estimates obtained from approximate lesion contours. The methodology is illustrated on fractal and synthetic objects contaminated by partial volume effects (PVEs), validated on realistic {sup 18}F-fluorodeoxyglucose PET simulations and tested for its robustness using a clinical {sup 18}F-fluorothymidine PET testretest dataset. Results: TLA estimates were stable for a range of resolutions typical in PET oncology (46 mm). By contrast, the space-filling index and intensity estimates were resolution dependent. TLA was generally recovered within 15% of ground truth on postfiltered PET images affected by PVEs. Volumes were recovered within 15% variability in the repeatability study. Results indicated that TLA is a more robust index than other traditional metrics such as SUV {sub mean} or TV measurements across imaging protocols. Conclusions: The fractal procedure reported here is proposed as a simple and effective computational alternative to existing methodologies which require the incorporation of image preprocessing steps (i.e., partial volume correction and automatic segmentation) prior to quantification.

Willaime, Julien M. Y., E-mail: julien.willaime@siemens.com; Aboagye, Eric O. [Comprehensive Cancer Imaging Centre, Imperial College London, Hammersmith Hospital, London W12 0NN (United Kingdom); Tsoumpas, Charalampos [Division of Medical Physics, University of Leeds, LS2 9JT (United Kingdom); Turkheimer, Federico E. [Department of Neuroimaging, Institute of Psychiatry, Kings College London, London SE5 8AF (United Kingdom)

2014-11-01T23:59:59.000Z

257

PET/CT com FDG-18 F em pacientes com suspeita de recidiva de carcinoma de ovrio.  

E-Print Network [OSTI]

??O exame PET/CT com FDG-18F um mtodo de diagnstico por imagem, til em oncologia. O cncer de ovrio o cncer ginecolgico de maior (more)

Sanja Dragosavac

2011-01-01T23:59:59.000Z

258

Field of view extension and truncation correction for MR-based human attenuation correction in simultaneous MR/PET imaging  

SciTech Connect (OSTI)

Purpose: In quantitative PET imaging, it is critical to accurately measure and compensate for the attenuation of the photons absorbed in the tissue. While in PET/CT the linear attenuation coefficients can be easily determined from a low-dose CT-based transmission scan, in whole-body MR/PET the computation of the linear attenuation coefficients is based on the MR data. However, a constraint of the MR-based attenuation correction (AC) is the MR-inherent field-of-view (FoV) limitation due to static magnetic field (B{sub 0}) inhomogeneities and gradient nonlinearities. Therefore, the MR-based human AC map may be truncated or geometrically distorted toward the edges of the FoV and, consequently, the PET reconstruction with MR-based AC may be biased. This is especially of impact laterally where the patient arms rest beside the body and are not fully considered. Methods: A method is proposed to extend the MR FoV by determining an optimal readout gradient field which locally compensates B{sub 0} inhomogeneities and gradient nonlinearities. This technique was used to reduce truncation in AC maps of 12 patients, and the impact on the PET quantification was analyzed and compared to truncated data without applying the FoV extension and additionally to an established approach of PET-based FoV extension. Results: The truncation artifacts in the MR-based AC maps were successfully reduced in all patients, and the mean body volume was thereby increased by 5.4%. In some cases large patient-dependent changes in SUV of up to 30% were observed in individual lesions when compared to the standard truncated attenuation map. Conclusions: The proposed technique successfully extends the MR FoV in MR-based attenuation correction and shows an improvement of PET quantification in whole-body MR/PET hybrid imaging. In comparison to the PET-based completion of the truncated body contour, the proposed method is also applicable to specialized PET tracers with little uptake in the arms and might reduce the computation time by obviating the need for iterative calculations of the PET emission data beyond those required for reconstructing images.

Blumhagen, Jan O., E-mail: janole.blumhagen@siemens.com; Ladebeck, Ralf; Fenchel, Matthias [Magnetic Resonance, Siemens AG Healthcare Sector, Erlangen 91052 (Germany)] [Magnetic Resonance, Siemens AG Healthcare Sector, Erlangen 91052 (Germany); Braun, Harald; Quick, Harald H. [Institute of Medical Physics, Friedrich-Alexander-University Erlangen-Nrnberg, Erlangen 91052 (Germany)] [Institute of Medical Physics, Friedrich-Alexander-University Erlangen-Nrnberg, Erlangen 91052 (Germany); Faul, David [Siemens Medical Solutions, New York, New York 10015 (United States)] [Siemens Medical Solutions, New York, New York 10015 (United States); Scheffler, Klaus [MRC Department, Max Planck Institute for Biological Cybernetics, Tbingen 72076, Germany and Department of Biomedical Magnetic Resonance, University Hospital Tbingen, Tbingen 72076 (Germany)] [MRC Department, Max Planck Institute for Biological Cybernetics, Tbingen 72076, Germany and Department of Biomedical Magnetic Resonance, University Hospital Tbingen, Tbingen 72076 (Germany)

2014-02-15T23:59:59.000Z

259

Preliminary design report: Babcock and Wilcox BR-100 100-ton rail/barge spent fuel shipping cask  

SciTech Connect (OSTI)

The purpose of this document is to provide information on burnup credit as applied to the preliminary design of the BR-100 shipping cask. There is a brief description of the preliminary basket design and the features used to maintain a critically safe system. Following the basket description is a discussion of various criticality analyses used to evaluate burnup credit. The results from these analyses are then reviewed in the perspective of fuel burnups expected to be shipped to either the final repository or a Monitored Retrievable Storage (MRS) facility. The hurdles to employing burnup credit in the certification of any cask are then outlines and reviewed. the last section gives conclusions reached as to burnup credit for the BR-100 cask, based on our analyses and experience. All information in this study refers to the cask configured to transport PWR fuel. Boiling Water Reactor (BWR) fuel satisfies the criticality requirements so that burnup credit is not needed. All calculations generated in the preparation of this report were based upon the preliminary design which will be optimized during the final design. 8 refs., 19 figs., 16 tabs.

none,

1990-02-01T23:59:59.000Z

260

THE CIRCUMNUCLEAR STAR FORMATION ENVIRONMENT OF NGC 6946: Br ? AND H{sub 2} RESULTS FROM KECK INTEGRAL FIELD SPECTROSCOPY  

SciTech Connect (OSTI)

We present a three-dimensional data cube of the K-band continuum and the Br ?, H{sub 2} S(0), and S(1) lines within the central 18.''5 13.''8 (520 pc 390 pc) region of NGC 6946. Data were obtained using OSIRIS, a near-infrared Integral Field Spectrograph at Keck Observatory, with Laser Guide Star Adaptive Optics. The 0.''3 resolution allows us to investigate the stellar bulge and the forming star clusters in the nuclear region on 10 pc scales. We detect giant H II regions associated with massive young star clusters in the nuclear spiral/ring (R ? 30 pc) and in the principal shocks along the nuclear bar. Comparisons of the Br ? fluxes with Pa ? line emission and radio continuum indicate A{sub K} ? 3, A{sub V} ? 25 for the nuclear star-forming regions. The most luminous H II regions are restricted to within 70 pc of the center, despite the presence of high gas columns at larger radii (R ? 200 pc). H{sub 2} emission is restricted to clouds within R ? 60 pc of the center, resembling the distribution of HCN line emission. We propose that gas-assisted migration of the young star clusters is contributing to the buildup of the nuclear bar and nuclear star cluster (R < 30 pc) in this galaxy.

Tsai, Chao-Wei [Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125 (United States); Turner, Jean L. [Department of Physics and Astronomy, UCLA, Los Angeles, CA 90095-1547 (United States); Beck, Sara C. [Department of Physics and Astronomy, Tel Aviv University, Ramat Aviv (Israel); Meier, David S. [Department of Physics, New Mexico Institute of Mining and Technology, Socorro, NM 87801 (United States); Wright, Shelley A., E-mail: Chao-Wei.Tsai@jpl.nasa.gov [Dunlap Institute for Astronomy and Astrophysics, University of Toronto, Toronto, Ontario (Canada)

2013-10-20T23:59:59.000Z

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


261

Dedicated mobile high resolution prostate PET imager with an insertable transrectal probe  

DOE Patents [OSTI]

A dedicated mobile PET imaging system to image the prostate and surrounding organs. The imaging system includes an outside high resolution PET imager placed close to the patient's torso and an insertable and compact transrectal probe that is placed in close proximity to the prostate and operates in conjunction with the outside imager. The two detector systems are spatially co-registered to each other. The outside imager is mounted on an open rotating gantry to provide torso-wide 3D images of the prostate and surrounding tissue and organs. The insertable probe provides closer imaging, high sensitivity, and very high resolution predominately 2D view of the prostate and immediate surroundings. The probe is operated in conjunction with the outside imager and a fast data acquisition system to provide very high resolution reconstruction of the prostate and surrounding tissue and organs.

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

2010-12-28T23:59:59.000Z

262

A systematic investigation of PET Radionuclide Specific Activity on Miniaturization of Radiochemistry  

SciTech Connect (OSTI)

The PET radionuclides, 18F and 11C consist of very high radiation to mass amounts and should be easily adapted to new technologies such as â??chip chemistryâ? with nanofluidics. However, environmental contamination with nonradioactive fluorine, carbon and other trace contaminants add sufficient mass, micrograms to milligrams, to prevent adapting PET radiochemistry to the nanochip technologies. In addition, the large volumes of material required for beam irradiation make it necessary to also remove the 18F and 11C from their chemical matrices. These steps add contaminants. The work described in this report was a systematic investigation of sources of these contaminants and methods to reduce these contaminants and the reaction volumes for radiochemical synthesis. Several methods were found to lower the contaminants and matrices to within a factor of 2 to 100 of those needed to fully implement chip technology but further improvements are needed.

Jeanne M Link, PhD

2012-03-08T23:59:59.000Z

263

Ligands for SPECT and PET imaging of muscarinic-cholinergic receptors of the heart and brain  

SciTech Connect (OSTI)

Interest in the potential use of cerebral SPECT and PET imaging for determination of the density and activity of muscarinic-cholinergic receptors (mAChR) has been stimulated by the changes in these receptors which occur in many neurological diseases. In addition, the important involvement of mAChR in modulating negative inotropic cardiac activity suggests that such receptor ligands may have important applications in evaluation of changes which may occur in cardiac disease. In this paper, the properties of several key muscarinic receptor ligands being developed or which have been used for clinical SPECT and PET are discussed. In addition, the ORNL development of the new iodinated IQNP ligand based on QNB and the results of in vivo biodistribution studies in rats, in vitro competitive binding studies and ex vivo autoradiographic experiments are described. The use of radioiodinated IQNP may offer several advantages in comparison to IQNB because of its easy and high yield preparation and high brain uptake and the potential usefulness of the {open_quotes}partial{close_quotes} subtype selective IONP isomers. We also describe the development of new IQNP-type analogues which offer the opportunity for radiolabeling with positron-emitting radioisotopes (carbon-11, fluorine-18 and bromine-76) for potential use with PET.

Knapp, F.F. Jr.; McPherson, D.W.; Luo, H. [and others

1995-06-01T23:59:59.000Z

264

Semiclassical Calculations on the Energy Dependence of the Steric Effect for the Reactions Ca (1D) + CH3X (jkm ) 111) f CaX + CH3 with X ) F, Cl, Br  

E-Print Network [OSTI]

) + CH3X (jkm ) 111) f CaX + CH3 with X ) F, Cl, Br Anthony J. H. M. Meijer,* Gerrit C. Groenenboom, and Br and CaX in the excited states A2, B2+, and A2. We use a semiclassical method (Meijer, A. J. H. M for Ca (1D) + CH3X (jkm ) 111) f CaX (A2, B2+, A2) + CH3 with X equal to F, Cl, or Br by Janssen, Parker

265

Longitudinal, intermodality registration of quantitative breast PET and MRI data acquired before and during neoadjuvant chemotherapy: Preliminary results  

SciTech Connect (OSTI)

Purpose: The authors propose a method whereby serially acquired DCE-MRI, DW-MRI, and FDG-PET breast data sets can be spatially and temporally coregistered to enable the comparison of changes in parameter maps at the voxel level. Methods: First, the authors aligned the PET and MR images at each time point rigidly and nonrigidly. To register the MR images longitudinally, the authors extended a nonrigid registration algorithm by including a tumor volume-preserving constraint in the cost function. After the PET images were aligned to the MR images at each time point, the authors then used the transformation obtained from the longitudinal registration of the MRI volumes to register the PET images longitudinally. The authors tested this approach on ten breast cancer patients by calculating a modified Dice similarity of tumor size between the PET and MR images as well as the bending energy and changes in the tumor volume after the application of the registration algorithm. Results: The median of the modified Dice in the registered PET and DCE-MRI data was 0.92. For the longitudinal registration, the median tumor volume change was ?0.03% for the constrained algorithm, compared to ?32.16% for the unconstrained registration algorithms (p = 8 10{sup ?6}). The medians of the bending energy were 0.0092 and 0.0001 for the unconstrained and constrained algorithms, respectively (p = 2.84 10{sup ?7}). Conclusions: The results indicate that the proposed method can accurately spatially align DCE-MRI, DW-MRI, and FDG-PET breast images acquired at different time points during therapy while preventing the tumor from being substantially distorted or compressed.

Atuegwu, Nkiruka C.; Williams, Jason M. [Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee 37232-2310 and Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, Tennessee 37232-2675 (United States)] [Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee 37232-2310 and Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, Tennessee 37232-2675 (United States); Li, Xia; Arlinghaus, Lori R. [Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee 37232-2310 (United States)] [Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee 37232-2310 (United States); Abramson, Richard G. [Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee 37232-2310 (United States) [Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee 37232-2310 (United States); Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, Tennessee 37232-2675 (United States); Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee 37232-6838 (United States); Chakravarthy, A. Bapsi [Department of Radiation Oncology, Vanderbilt University Medical Center, Nashville, Tennessee 37232-5671 and Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee 37232-6838 (United States)] [Department of Radiation Oncology, Vanderbilt University Medical Center, Nashville, Tennessee 37232-5671 and Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee 37232-6838 (United States); Abramson, Vandana G. [Department of Medical Oncology, Vanderbilt University Medical Center, Nashville, Tennessee 37232-6307 and Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee 37232-6838 (United States)] [Department of Medical Oncology, Vanderbilt University Medical Center, Nashville, Tennessee 37232-6307 and Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee 37232-6838 (United States); Yankeelov, Thomas E., E-mail: thomas.yankeelov@vanderbilt.edu [Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, Tennessee 37232-2310 (United States); Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, Tennessee 37232-2675 (United States); Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37240-1807 (United States); Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, Tennessee 37232-6838 (United States); Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee 37235-1631 (United States); Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee 37232-6838 (United States)

2014-05-15T23:59:59.000Z

266

SU-E-J-86: Lobar Lung Function Quantification by PET Galligas and CT Ventilation Imaging in Lung Cancer Patients  

SciTech Connect (OSTI)

Purpose: The purpose of this study was to quantify the lobar lung function using the novel PET Galligas ([68Ga]-carbon nanoparticle) ventilation imaging and the investigational CT ventilation imaging in lung cancer patients pre-treatment. Methods: We present results on our first three lung cancer patients (2 male, mean age 78 years) as part of an ongoing ethics approved study. For each patient a PET Galligas ventilation (PET-V) image and a pair of breath hold CT images (end-exhale and end-inhale tidal volumes) were acquired using a Siemens Biograph PET CT. CT-ventilation (CT-V) images were created from the pair of CT images using deformable image registration (DIR) algorithms and the Hounsfield Unit (HU) ventilation metric. A comparison of ventilation quantification from each modality was done on the lobar level and the voxel level. A Bland-Altman plot was used to assess the difference in mean percentage contribution of each lobe to the total lung function between the two modalities. For each patient, a voxel-wise Spearmans correlation was calculated for the whole lungs between the two modalities. Results: The Bland-Altman plot demonstrated strong agreement between PET-V and CT-V for assessment of lobar function (r=0.99, p<0.001; range mean difference: ?5.5 to 3.0). The correlation between PET-V and CT-V at the voxel level was moderate(r=0.60, p<0.001). Conclusion: This preliminary study on the three patients data sets demonstrated strong agreement between PET and CT ventilation imaging for the assessment of pre-treatment lung function at the lobar level. Agreement was only moderate at the level of voxel correlations. These results indicate that CT ventilation imaging has potential for assessing pre-treatment lobar lung function in lung cancer patients.

Eslick, E; Kipritidis, J; Keall, P [University of Sydney, Camperdown, NSW (Australia); Bailey, D; Bailey, E [Royal North Shore Hospital, St. Leonards, NSW (Australia)

2014-06-01T23:59:59.000Z

267

Runs 5 through 7 were stopped prematurely due to the fact that the PET product severely plugged the vent to the condenser. These were also completed after several modifications to the autoclave setup  

E-Print Network [OSTI]

Runs 5 through 7 were stopped prematurely due to the fact that the PET product severely plugged modifications did not cause the plug. Conclusions Qualitatively, the objective was for the PET to be clear of the runs were varying degrees of yellow indicating that the PET began to degrade in the autoclave

268

Study of the ArBr-, AC, and Krl-anions and the corresponding neutral van der Waals complexes by anion zero electron kinetic energy  

E-Print Network [OSTI]

rotational transitions. From our data, we construct the potential energy curve for each neutral state as well energy functions between open and closed shell species or between neutrals and ions are gener- ally muchStudy of the ArBr-, AC, and Krl- anions and the corresponding neutral van der Waals complexes

Neumark, Daniel M.

269

Junior QA Engineer Intern -14895BR -EH QA Engineers are responsible for facilitating the analysis, evaluation, and testing of firmware across multiple platforms.  

E-Print Network [OSTI]

Junior QA Engineer Intern - 14895BR - EH QA Engineers are responsible for facilitating the analysis, evaluation, and testing of firmware across multiple platforms. · Develop, implement, review ­ C, Java, or other object-oriented programming language acceptable. · Networking experience (L2/L3

Ravikumar, B.

270

Improved UTE-based attenuation correction for cranial PET-MR using dynamic magnetic field monitoring  

SciTech Connect (OSTI)

Purpose: Ultrashort echo time (UTE) MRI has been proposed as a way to produce segmented attenuation maps for PET, as it provides contrast between bone, air, and soft tissue. However, UTE sequences require samples to be acquired during rapidly changing gradient fields, which makes the resulting images prone to eddy current artifacts. In this work it is demonstrated that this can lead to misclassification of tissues in segmented attenuation maps (AC maps) and that these effects can be corrected for by measuring the true k-space trajectories using a magnetic field camera. Methods: The k-space trajectories during a dual echo UTE sequence were measured using a dynamic magnetic field camera. UTE images were reconstructed using nominal trajectories and again using the measured trajectories. A numerical phantom was used to demonstrate the effect of reconstructing with incorrect trajectories. Images of an ovine leg phantom were reconstructed and segmented and the resulting attenuation maps were compared to a segmented map derived from a CT scan of the same phantom, using the Dice similarity measure. The feasibility of the proposed method was demonstrated ininvivo cranial imaging in five healthy volunteers. Simulated PET data were generated for one volunteer to show the impact of misclassifications on the PET reconstruction. Results: Images of the numerical phantom exhibited blurring and edge artifacts on the bonetissue and airtissue interfaces when nominal k-space trajectories were used, leading to misclassification of soft tissue as bone and misclassification of bone as air. Images of the tissue phantom and theinvivo cranial images exhibited the same artifacts. The artifacts were greatly reduced when the measured trajectories were used. For the tissue phantom, the Dice coefficient for bone in MR relative to CT was 0.616 using the nominal trajectories and 0.814 using the measured trajectories. The Dice coefficients for soft tissue were 0.933 and 0.934 for the nominal and measured cases, respectively. For air the corresponding figures were 0.991 and 0.993. Compared to an unattenuated reference image, the mean error in simulated PET uptake in the brain was 9.16% when AC maps derived from nominal trajectories was used, with errors in the SUV{sub max} for simulated lesions in the range of 7.17%12.19%. Corresponding figures when AC maps derived from measured trajectories were used were 0.34% (mean error) and ?0.21% to +1.81% (lesions). Conclusions: Eddy current artifacts in UTE imaging can be corrected for by measuring the true k-space trajectories during a calibration scan and using them in subsequent image reconstructions. This improves the accuracy of segmented PET attenuation maps derived from UTE sequences and subsequent PET reconstruction.

Aitken, A. P.; Giese, D.; Tsoumpas, C.; Schleyer, P.; Kozerke, S.; Prieto, C.; Schaeffter, T., E-mail: Tobias.Schaeffter@kcl.ac.uk [Department of Biomedical Engineering, Division of Imaging Sciences and Biomedical Engineering, King's College London, King's Health Partners, St. Thomas Hospital, London SE1 7EH (United Kingdom)

2014-01-15T23:59:59.000Z

271

Compartment modeling of dynamic brain PETThe impact of scatter corrections on parameter errors  

SciTech Connect (OSTI)

Purpose: The aim of this study was to investigate the effect of scatter and its correction on kinetic parameters in dynamic brain positron emission tomography (PET) tumor imaging. The 2-tissue compartment model was used, and two different reconstruction methods and two scatter correction (SC) schemes were investigated. Methods: The GATE Monte Carlo (MC) software was used to perform 2 15 full PET scan simulations of a voxelized head phantom with inserted tumor regions. The two sets of kinetic parameters of all tissues were chosen to represent the 2-tissue compartment model for the tracer 3?-deoxy-3?-({sup 18}F)fluorothymidine (FLT), and were denoted FLT{sub 1} and FLT{sub 2}. PET data were reconstructed with both 3D filtered back-projection with reprojection (3DRP) and 3D ordered-subset expectation maximization (OSEM). Images including true coincidences with attenuation correction (AC) and true+scattered coincidences with AC and with and without one of two applied SC schemes were reconstructed. Kinetic parameters were estimated by weighted nonlinear least squares fitting of image derived timeactivity curves. Calculated parameters were compared to the true input to the MC simulations. Results: The relative parameter biases for scatter-eliminated data were 15%, 16%, 4%, 30%, 9%, and 7% (FLT{sub 1}) and 13%, 6%, 1%, 46%, 12%, and 8% (FLT{sub 2}) for K{sub 1}, k{sub 2}, k{sub 3}, k{sub 4}, V{sub a}, and K{sub i}, respectively. As expected, SC was essential for most parameters since omitting it increased biases by 10 percentage points on average. SC was not found necessary for the estimation of K{sub i} and k{sub 3}, however. There was no significant difference in parameter biases between the two investigated SC schemes or from parameter biases from scatter-eliminated PET data. Furthermore, neither 3DRP nor OSEM yielded the smallest parameter biases consistently although there was a slight favor for 3DRP which produced less biased k{sub 3} and K{sub i} estimates while OSEM resulted in a less biased V{sub a}. The uncertainty in OSEM parameters was about 26% (FLT{sub 1}) and 12% (FLT{sub 2}) larger than for 3DRP although identical postfilters were applied. Conclusions: SC was important for good parameter estimations. Both investigated SC schemes performed equally well on average and properly corrected for the scattered radiation, without introducing further bias. Furthermore, 3DRP was slightly favorable over OSEM in terms of kinetic parameter biases and SDs.

Hggstrm, Ida, E-mail: ida.haggstrom@radfys.umu.se; Karlsson, Mikael; Larsson, Anne [Department of Radiation Sciences, Ume University, Ume 90187 (Sweden); Schmidtlein, C. Ross [Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York 10065 (United States)

2014-11-01T23:59:59.000Z

272

PET/CT image registration: Preliminary tests for its application to clinical dosimetry in radiotherapy  

SciTech Connect (OSTI)

The quality of dosimetry in radiotherapy treatment requires the accurate delimitation of the gross tumor volume. This can be achieved by complementing the anatomical detail provided by CT images through fusion with other imaging modalities that provide additional metabolic and physiological information. Therefore, use of multiple imaging modalities for radiotherapy treatment planning requires an accurate image registration method. This work describes tests carried out on a Discovery LS positron emission/computed tomography (PET/CT) system by General Electric Medical Systems (GEMS), for its later use to obtain images to delimit the target in radiotherapy treatment. Several phantoms have been used to verify image correlation, in combination with fiducial markers, which were used as a system of external landmarks. We analyzed the geometrical accuracy of two different fusion methods with the images obtained with these phantoms. We first studied the fusion method used by the PET/CT system by GEMS (hardware fusion) on the basis that there is satisfactory coincidence between the reconstruction centers in CT and PET systems; and secondly the fiducial fusion, a registration method, by means of least-squares fitting algorithm of a landmark points system. The study concluded with the verification of the centroid position of some phantom components in both imaging modalities. Centroids were estimated through a calculation similar to center-of-mass, weighted by the value of the CT number and the uptake intensity in PET. The mean deviations found for the hardware fusion method were: vertical bar {delta}x vertical bar {+-}{sigma}=3.3 mm{+-}1.0 mm and vertical bar {delta}y vertical bar {+-}{sigma}=3.6 mm{+-}1.0 mm. These values were substantially improved upon applying fiducial fusion based on external landmark points: vertical bar {delta}x vertical bar {+-}{sigma}=0.7 mm{+-}0.8 mm and vertical bar {delta}y vertical bar {+-}{sigma}=0.3 mm{+-}1.7 mm. We also noted that differences found for each of the fusion methods were similar for both the axial and helical CT image acquisition protocols.

Banos-Capilla, M. C.; Garcia, M. A.; Bea, J.; Pla, C.; Larrea, L.; Lopez, E. [Department of Medical Physics, Radiation Oncology, Hospital Virgen del Consuelo, Callosa de Ensarria 12-Valencia, Valencia 46007 (Spain); Department of Radiation Oncology, H. NISA 'Virgen del Consuelo', Valencia (Spain)

2007-06-15T23:59:59.000Z

273

Macrocyclic polyaminocarboxylates for stable radiometal antibody conjugates for therapy, spect and pet imaging  

DOE Patents [OSTI]

A simple method for the synthesis of 1,4,7, 10-tetraazacyclododecane N,N'N",N'"-tetraacetic acid and 1,4,8,11-tetraazacyclotetradecane N,N',N",N'"-tetraacetic acid involves cyanomethylating 1,4,7, 10-tetraazacyclododecane or 1,4,8,11-tetraazacyclotetradecane to form a tetranitrile and hydrolyzing the tetranitrile. These macrocyclic compounds are functionalized through one of the carboxylates and then conjugated to various biological molecules including monoclonal antibodies. The resulting conjugated molecules are labeled with radiometals for SPECT and PET imaging and for radiotherapy.

Mease, Ronnie C. (Fairfax, VA); Mausner, Leonard F. (Stony Brook, NY); Srivastava, Suresh C. (Setauket, NY)

1997-06-17T23:59:59.000Z

274

MR-based Attenuation Correction for PET/MR M. Hofmann1,2  

E-Print Network [OSTI]

MR-based Attenuation Correction for PET/MR M. Hofmann1,2 , F. Steinke1 , I. Bezrukov1,2 , A. Kolb2 acquired at 3T an ultra short echo time (UTE) MR image with TE=0.07ms and 1.1x1.1x1.1 mm3 resolution , P. Aschoff2 , M. Lichy2 , M. Erb2 , T. Nägele2 , M. Brady3 , B. Schölkopf1 , and B. Pichler2 1 Max

275

PET: An Emerging Tool in the Fight Against Cancer |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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006 The 2002OpticsPeriodical: Volume 5,PET Imaging: An Emerging Tool in

276

Macrocyclic polyaminocarboxylates for stable radiometal antibody conjugates for therapy, SPECT and PET imaging  

DOE Patents [OSTI]

A simple method for the synthesis of 1,4,7, 10-tetraazacyclododecane N,N{prime}N{double_prime},N{prime}{double_prime}-tetraacetic acid and 1,4,8,11-tetraazacyclotetradecane N,N{prime},N{double_prime},N{prime}{double_prime}-tetraacetic acid involves cyanomethylating 1,4,7,10-tetraazacyclododecane or 1,4,8,11-tetraazacyclotetradecane to form a tetranitrile and hydrolyzing the tetranitrile. These macrocyclic compounds are functionalized through one of the carboxylates and then conjugated to various biological molecules including monoclonal antibodies. The resulting conjugated molecules are labeled with radiometals for SPECT and PET imaging and for radiotherapy. 4 figs.

Mease, R.C.; Mausner, L.F.; Srivastava, S.C.

1997-06-17T23:59:59.000Z

277

Infrared absorption of gaseous CH{sub 2}BrOO detected with a step-scan Fourier-transform absorption spectrometer  

SciTech Connect (OSTI)

CH{sub 2}BrOO radicals were produced upon irradiation, with an excimer laser at 248 nm, of a flowing mixture of CH{sub 2}Br{sub 2} and O{sub 2}. A step-scan Fourier-transform spectrometer coupled with a multipass absorption cell was employed to record temporally resolved infrared (IR) absorption spectra of reaction intermediates. Transient absorption with origins at 1276.1, 1088.3, 961.0, and 884.9 cm{sup ?1} are assigned to ?{sub 4} (CH{sub 2}-wagging), ?{sub 6} (OO stretching), ?{sub 7} (CH{sub 2}-rocking mixed with CO stretching), and ?{sub 8} (CO stretching mixed with CH{sub 2}-rocking) modes of syn-CH{sub 2}BrOO, respectively. The assignments were made according to the expected photochemistry and a comparison of observed vibrational wavenumbers, relative IR intensities, and rotational contours with those predicted with the B3LYP/aug-cc-pVTZ method. The rotational contours of ?{sub 7} and ?{sub 8} indicate that hot bands involving the torsional (?{sub 12}) mode are also present, with transitions 7{sub 0}{sup 1}12{sub v}{sup v} and 8{sub 0}{sup 1}12{sub v}{sup v}, v = 110. The most intense band (?{sub 4}) of anti-CH{sub 2}BrOO near 1277 cm{sup ?1} might have a small contribution to the observed spectra. Our work provides information for directly probing gaseous CH{sub 2}BrOO with IR spectroscopy, in either the atmosphere or laboratory experiments.

Huang, Yu-Hsuan [Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, Hsinchu 30010, Taiwan (China); Lee, Yuan-Pern, E-mail: yplee@mail.nctu.edu.tw [Department of Applied Chemistry and Institute of Molecular Science, National Chiao Tung University, Hsinchu 30010, Taiwan (China); Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan (China)

2014-10-28T23:59:59.000Z

278

Electron nuclear double resonance study of photostimulated luminescence active centers in CsBr:Eu{sup 2+} medical imaging plates  

SciTech Connect (OSTI)

CsBr:Eu{sup 2+} needle image plates exhibit an electron-paramagnetic-resonance (EPR) spectrum at room temperature (RT), whose intensity is correlated with the photostimulated luminescence sensitivity of the plate. This EPR spectrum shows a strong temperature dependence: At RT it is owing to a single Eu{sup 2+} (S =7/2) center with axial symmetry, whereas at T<35 K the spectra can only be explained when two distinct centers are assumed to be present, a minority axial center and a majority center with nearly extremely rhombic symmetry. In this paper these low-temperature centers are studied with electron nuclear double resonance (ENDOR) spectroscopy, which reveals the presence of {sup 1}H nuclei close to the central Eu{sup 2+} ions in the centers. Analysis of the angular dependence of the ENDOR spectra allows to propose models for these centers, providing an explanation for the observed difference in intensity between the spectral components and for their temperature dependence.

Vrielinck, H.; Loncke, F.; Matthys, P.; Callens, F. [Department of Solid State Sciences, Ghent University, Krijgslaan 281-S1, B-9000 Gent (Belgium); Tahon, J.-P.; Leblans, P. [Agfa HealthCare NV, Septestraat 27, B-2640 Mortsel (Belgium)

2011-02-01T23:59:59.000Z

279

Flexible dye-sensitized solar cells with ZnO nanoparticles grown by Sonochemistry over Graphene/PET substrates.  

E-Print Network [OSTI]

Flexible dye-sensitized solar cells with ZnO nanoparticles grown by Sonochemistry over Graphene and Engineering University of North Texas, Denton, Texas Flexible Dye sensitized solar cells (FDSSCs) are light characteristics of ZnO nanostructures over Graphene/PET as photoanode for flexible dye sensitized solar cells. #12;

Pala, Nezih

280

Reducing Modeling Error of Graphical Methods for Estimating Volume of Distribution Measurements in PIB-PET study  

E-Print Network [OSTI]

in PIB-PET study Hongbin Guo,a, Rosemary A Renauta, Kewei Chenb, Eric M Reimanb a Arizona State. Tel: 1-480-965-8002, Fax: 1-480-965-4160. Email address: hb guo@asu.edu (Hongbin Guo) Preprint

Renaut, Rosemary

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


281

Bi{sub 6}(SeO{sub 3}){sub 3}O{sub 5}Br{sub 2}: A new bismuth oxo-selenite bromide  

SciTech Connect (OSTI)

A new bismuth oxo-selenite bromide Bi{sub 6}(SeO{sub 3}){sub 3}O{sub 5}Br{sub 2} was synthesized and structurally characterized. The crystal structure belongs to the triclinic system (space group P1-bar , Z=2, a=7.1253(7) A, b=10.972(1) A, c=12.117(1) A, {alpha}=67.765(7) Degree-Sign , {beta}=82.188(8) Degree-Sign , {gamma}=78.445(7) Degree-Sign ) and is unrelated to those of other known oxo-selenite halides. It can be considered as an open framework composed of BiO{sub x} or BiO{sub y}Br{sub z} polyhedrons forming channels running along [1 0 0] direction which contain the selenium atoms in pyramidal shape oxygen coordination (SeO{sub 3}E). The spectroscopic properties and thermal stability were studied. The new compound is stable up to 400 Degree-Sign C. - graphical abstract: New bismuth oxo-selenite bromide with new open framework structure. Highlights: Black-Right-Pointing-Pointer New bismuth oxo-selenite bromide was found and structurally characterized. Black-Right-Pointing-Pointer Bi{sub 6}(SeO{sub 3}){sub 3}O{sub 5}Br{sub 2} exhibit a new open framework structure type. Black-Right-Pointing-Pointer BiO{sub x} or BiO{sub y}Br{sub z} polyhedrons form channels in the structure which are decorated by [SeO{sub 3}E] groups.

Berdonosov, Peter S., E-mail: berdonosov@inorg.chem.msu.ru [Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow (Russian Federation); Olenev, Andrei V. [SineTheta Ltd., MSU Building 1-77, 119991 Moscow (Russian Federation)] [SineTheta Ltd., MSU Building 1-77, 119991 Moscow (Russian Federation); Kirsanova, Maria A. [Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow (Russian Federation)] [Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow (Russian Federation); Lebed, Julia B. [Institute for nuclear research RAS, 142190, Troitsk, Moscow region (Russian Federation)] [Institute for nuclear research RAS, 142190, Troitsk, Moscow region (Russian Federation); Dolgikh, Valery A. [Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow (Russian Federation)] [Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow (Russian Federation)

2012-12-15T23:59:59.000Z

282

Vapor-liquid equilibria in the system NH{sub 3} + H{sub 2}O + LiBr. 2: Data correlation  

SciTech Connect (OSTI)

The systems ammonia + water (NH{sub 3} + H{sub 2}O) and water + lithium bromide (H{sub 2}O + LiBr) provide two working pairs most often used today in air-conditioning systems and systems for reusing industrial waste heat, such as absorption heat pumps and heat transformers. A quasi-chemical reaction model has been developed to correlate vapor-liquid equilibrium data for the system ammonia (NH{sub 3}) + water (H{sub 2}O) + lithium bromide (LiBr) in the temperature range form 303.15 to 473.15 K and at pressures up to 2.0 MPa. this model assumes the formation of ion clusters, i.e., Li{sup +} and Br{sup {minus}} ions surrounded by ammonia and water molecules. Further, ammonia nd water molecules are assumed to form a second species of complexes. The activities of the various components in the liquid phase are modeled by the NRTL equation. The vapor phase, assumed to consist of ammonia and water only, is modeled by the equation of state of Ishikawa, Chung, and Lu.

Peters, R.; Korinth, C.; Keller, J.U. [Univ. of Siegen (Germany). Institute Fluid- and Thermodynamics

1995-07-01T23:59:59.000Z

283

Simulation and performance analysis of basic GAX and advanced GAX cycles with ammonia/water and ammonia/water/LiBr absorption fluids  

SciTech Connect (OSTI)

The generator-absorber heat exchange (GAX) and branched GAX cycles are generally considered with NH{sub 3}/H{sub 2}O as their working fluid. The potential consequences of using a ternary mixture of NH{sub 3}/H{sub 2}O/LiBr (advanced fluids) in the GAX and Branched GAX (advanced cycles) are discussed in this study. A modular steady state absorption simulation model(ABSIM) was used to investigate the potential of combining the above advanced cycles with the advanced fluids. ABSIM is capable of modeling varying cycle configurations with different working fluids. Performance parameters of the cycles, including coefficient of performance (COP) and heat duties, were investigated as functions of different operating parameters in the cooling mode for both the NH {sub 3}/H{sub 2}O binary and the NH{sub 3}/H{sub 2}O/LiBr ternary mixtures. High performance potential of GAX and branched GAX cycles using the NH{sub 3}/H{sub 2}O/LiBr ternary fluid mixture was achieved especially at the high range of firing temperatures exceeding 400{degrees}F. The cooling COP`s have been improved by approximately 21% over the COP achieved with the NH{sub 3}/H{sub 2}O binary mixtures. These results show the potential of using advanced cycles with advanced fluid mixtures (ternary or quaternary fluid mixtures).

Zaltash, A.; Grossman, G.

1996-03-01T23:59:59.000Z

284

Presseinformation Pressesprecherin: Katja Br  

E-Print Network [OSTI]

in einem Auto mit Elektro- oder Verbrennungsmotor. Neben den Leistungen in verschiedenen Renndisziplinen

Mannheim, Universität

285

Presseinformation Pressesprecherin: Katja Br  

E-Print Network [OSTI]

Studierendenorganisation Students in Free Enterprises erfolgreich / Mannheimer Team tritt in Washington D.C. beim internationalen Wettbewerb an Die Studierendenorganisation SIFE Mannheim (Students in Free Enterprises) tritt beim

Mannheim, Universität

286

Presseinformation Pressesprecherin: Katja Br  

E-Print Network [OSTI]

tatsächlich gefunden: das sogenannte Higgs-Boson. Ein Teilchen, das zur Erklärung der Masse dient. Heute

Mannheim, Universität

287

Geothermal br Resource br Area Geothermal br Resource br Area Geothermal  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation, searchGeaugaInformation Mexico - A Survey of Work to DateWellOpenBrady

288

Geothermal br Resource br Area Geothermal br Resource br Area Geothermal  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation, searchGeaugaInformation Mexico - A Survey of Work to

289

Geothermal br Resource br Area Geothermal br Resource br Area Geothermal  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation, searchGeaugaInformation Mexico - A Survey of Work toAluto Langano

290

Geothermal br Resource br Area Geothermal br Resource br Area Geothermal  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation, searchGeaugaInformation Mexico - A Survey of Work toAluto

291

Geothermal br Resource br Area Geothermal br Resource br Area Geothermal  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation, searchGeaugaInformation Mexico - A Survey of Work toAlutoZone Mesozoic

292

Cholecystokinin-Assisted Hydrodissection of the Gallbladder Fossa during FDG PET/CT-guided Liver Ablation  

SciTech Connect (OSTI)

A 68-year-old female with colorectal cancer developed a metachronous isolated fluorodeoxyglucose-avid (FDG-avid) segment 5/6 gallbladder fossa hepatic lesion and was referred for percutaneous ablation. Pre-procedure computed tomography (CT) images demonstrated a distended gallbladder abutting the segment 5/6 hepatic metastasis. In order to perform ablation with clear margins and avoid direct puncture and aspiration of the gallbladder, cholecystokinin was administered intravenously to stimulate gallbladder contraction before hydrodissection. Subsequently, the lesion was ablated successfully with sufficient margins, of greater than 1.0 cm, using microwave with ultrasound and FDG PET/CT guidance. The patient tolerated the procedure very well and was discharged home the next day.

Tewari, Sanjit O., E-mail: tewaris@mskcc.org [Memorial Sloan-Kettering Cancer Center, Molecular Imaging and Therapy Service, Department of Radiology (United States); Petre, Elena N., E-mail: petree@mskcc.org [Memorial Sloan-Kettering Cancer Center, Interventional Radiology Service, Department of Radiology (United States); Osborne, Joseph, E-mail: osbornej@mskcc.org [Memorial Sloan-Kettering Cancer Center, Molecular Imaging and Therapy Service, Department of Radiology (United States)] [Memorial Sloan-Kettering Cancer Center, Molecular Imaging and Therapy Service, Department of Radiology (United States); Sofocleous, Constantinos T., E-mail: sofoclec@mskcc.org [Memorial Sloan-Kettering Cancer Center, Interventional Radiology Service, Department of Radiology (United States)

2013-12-15T23:59:59.000Z

293

Compressive Sensing of Signals Generated in Plastic Scintillators in a Novel J-PET Instrument  

E-Print Network [OSTI]

The J-PET scanner, which allows for single bed imaging of the whole human body, is currently under development at the Jagiellonian University. The dis- cussed detector offers improvement of the Time of Flight (TOF) resolution due to the use of fast plastic scintillators and dedicated electronics allowing for sam- pling in the voltage domain of signals with durations of few nanoseconds. In this paper we show that recovery of the whole signal, based on only a few samples, is possible. In order to do that, we incorporate the training signals into the Tikhonov regularization framework and we perform the Principal Component Analysis decomposition, which is well known for its compaction properties. The method yields a simple closed form analytical solution that does not require iter- ative processing. Moreover, from the Bayes theory the properties of regularized solution, especially its covariance matrix, may be easily derived. This is the key to introduce and prove the formula for calculations of the signal recove...

Raczynski, L; Kowalski, P; Wislicki, W; Bednarski, T; Bialas, P; Czerwinski, E; Gajos, A; Kaplon, L; Kochanowski, A; Korcyl, G; Kowal, J; Kozik, T; Krzemien, W; Kubicz, E; Niedzwiecki, Sz; Palka, M; Rudy, Z; Rundel, O; Salabura, P; Sharma, N G; Silarski, M; lomski, A S; Smyrski, J; Strzelecki, A; Wieczorek, A; Zielinski, M; Zon, N

2015-01-01T23:59:59.000Z

294

Active barrier films of PET for solar cell application: Processing and characterization  

SciTech Connect (OSTI)

A preliminary investigation was carried out on the possibility to improve the protective action offered by the standard multilayer structures used to encapsulate photovoltaic devices. With this aim, a commercial active barrier PET-based material, able to absorb oxygen when activated by liquid water, was used to produce flexible and transparent active barrier films, by means of a lab-scale film production plant. The obtained film, tested in terms of thermal, optical and oxygen absorption properties, shows a slow oxygen absorption kinetics, an acceptable transparency and an easy roll-to-roll processability, so proving itself as a good candidate for the development of protective coating for solar cells against the atmospheric degradation agents like the rain.

Rossi, Gabriella; Scarfato, Paola; Incarnato, Loredana [Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132 - 84084 Fisciano (Italy)

2014-05-15T23:59:59.000Z

295

An observational study of the potential for human exposures to pet-borne diazinon residues following lawn applications  

SciTech Connect (OSTI)

This study examined the potential for pet dogs to be an important pathway for transporting diazinon residues into homes and onto its occupants following residential lawn applications. The primary objectives were to investigate the potential exposures of occupants and their pet dogs to diazinon after an application to turf at their residences and to determine if personal contacts between occupants and their pet dogs resulted in measurable exposures. It was conducted from April to August 2001 before the Agency phased out all residential uses of diazinon in December 2004. Six families and their pet dogs were recruited into the study. Monitoring was conducted at pre-, 1, 2, 4, and 8 days post-application of a commercial, granular formulation of diazinon to the lawn by the homeowner. Environmental samples collected included soil, indoor air, carpet dust, and transferable residues from lawns and floors. Samples collected from the pet dogs consisted of paw wipes, fur clippings, and transferable residues from the fur by a technician or child wearing a cotton glove(s). First morning void (FMV) urine samples were collected from each child and his/her parent on each sampling day. Diazinon was analyzed in all samples, except urine, by GC-MS. The metabolite 2-isopropyl-4-methyl-6-hydroxypyrimidine (IMPy) was analyzed in the urine samples by HPLC-MS/MS. Mean airborne residues of diazinon on day 1 post-application were at least six times higher in both the living rooms (235{+-}267 ng/m{sup 3}) and children's bedrooms (179{+-}246 ng/m{sup 3}) than at pre-application. Mean loadings of diazinon in carpet dust samples were at least 20 times greater on days 2, 4, and 8 post-application than mean loadings (0.03{+-}0.04 ng/cm{sup 2}) at pre-application. The pet dogs had over 900 times higher mean loadings of diazinon residues on their paws on day 1 post-application (88.1{+-}100.1 ng/cm{sup 2}) compared to mean loadings (<0.09 ng/cm{sup 2}) at pre-application. The mean diazinon loadings on the fur clippings were at least 14 times higher on days 1, 2, 4, and 8 post-application than mean loadings (0.8{+-}0.4 ng/cm{sup 2}) at pre-application. For transferable residues from dog fur, the mean loadings of diazinon on the technician's cotton glove samples were the lowest before application (0.04{+-}0.08 ng/cm{sup 2}) and the highest on day 1 post-application (10.4{+-}23.9 ng/cm{sup 2}) of diazinon to turf. Urinary IMPy concentrations for the participants ranged from <0.3 to 5.5 ng/mL before application and <0.3-12.5 ng/mL after application of diazinon. The mean urinary IMPy concentrations for children or adults were not statistically different (p>0.05) at pre-application compared to post-application of diazinon to turf. The results showed that the participants and their pet dogs were likely exposed to low levels of diazinon residues from several sources (i.e., air, dust, and soil), through several pathways and routes, after lawn applications at these residences. Lastly, the pet dog appears to be an important pathway for the transfer and translocation of diazinon residues inside the homes and likely exposed occupants through personal contacts (i.e., petting)

Morgan, Marsha K. [USEPA, National Exposure Research Laboratory, Research Triangle Park, NC 27709 (United States)], E-mail: morgan.marsha@epa.gov; Stout, Daniel M.; Jones, Paul A. [USEPA, National Exposure Research Laboratory, Research Triangle Park, NC 27709 (United States); Barr, Dana B. [National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA (United States)

2008-07-15T23:59:59.000Z

296

Correction for FDG PET dose extravasations: Monte Carlo validation and quantitative evaluation of patient studies  

SciTech Connect (OSTI)

Purpose: Current procedure guidelines for whole body [18F]fluoro-2-deoxy-D-glucose (FDG)-positron emission tomography (PET) state that studies with visible dose extravasations should be rejected for quantification protocols. Our work is focused on the development and validation of methods for estimating extravasated doses in order to correct standard uptake value (SUV) values for this effect in clinical routine. Methods: One thousand three hundred sixty-seven consecutive whole body FDG-PET studies were visually inspected looking for extravasation cases. Two methods for estimating the extravasated dose were proposed and validated in different scenarios using Monte Carlo simulations. All visible extravasations were retrospectively evaluated using a manual ROI based method. In addition, the 50 patients with higher extravasated doses were also evaluated using a threshold-based method. Results: Simulation studies showed that the proposed methods for estimating extravasated doses allow us to compensate the impact of extravasations on SUV values with an error below 5%. The quantitative evaluation of patient studies revealed that paravenous injection is a relatively frequent effect (18%) with a small fraction of patients presenting considerable extravasations ranging from 1% to a maximum of 22% of the injected dose. A criterion based on the extravasated volume and maximum concentration was established in order to identify this fraction of patients that might be corrected for paravenous injection effect. Conclusions: The authors propose the use of a manual ROI based method for estimating the effectively administered FDG dose and then correct SUV quantification in those patients fulfilling the proposed criterion.

Silva-Rodrguez, Jess, E-mail: jesus.silva.rodriguez@sergas.es; Aguiar, Pablo, E-mail: pablo.aguiar.fernandez@sergas.es [Fundacin Ramn Domnguez, Santiago de Compostela, Galicia (Spain) [Fundacin Ramn Domnguez, Santiago de Compostela, Galicia (Spain); Servicio de Medicina Nuclear, Complexo Hospitalario Universidade de Santiago de Compostela (USC), 15782, Galicia (Spain); Grupo de Imaxe Molecular, Instituto de Investigacin Sanitarias (IDIS), Santiago de Compostela, 15706, Galicia (Spain); Snchez, Manuel; Mosquera, Javier; Luna-Vega, Vctor [Servicio de Radiofsica y Proteccin Radiolgica, Complexo Hospitalario Universidade de Santiago de Compostela (USC), 15782, Galicia (Spain)] [Servicio de Radiofsica y Proteccin Radiolgica, Complexo Hospitalario Universidade de Santiago de Compostela (USC), 15782, Galicia (Spain); Corts, Julia; Garrido, Miguel [Servicio de Medicina Nuclear, Complexo Hospitalario Universitario de Santiago de Compostela, 15706, Galicia, Spain and Grupo de Imaxe Molecular, Instituto de Investigacin Sanitarias (IDIS), Santiago de Compostela, 15706, Galicia (Spain)] [Servicio de Medicina Nuclear, Complexo Hospitalario Universitario de Santiago de Compostela, 15706, Galicia, Spain and Grupo de Imaxe Molecular, Instituto de Investigacin Sanitarias (IDIS), Santiago de Compostela, 15706, Galicia (Spain); Pombar, Miguel [Servicio de Radiofsica y Proteccin Radiolgica, Complexo Hospitalario Universitario de Santiago de Compostela, 15706, Galicia (Spain)] [Servicio de Radiofsica y Proteccin Radiolgica, Complexo Hospitalario Universitario de Santiago de Compostela, 15706, Galicia (Spain); Ruibal, lvaro [Servicio de Medicina Nuclear, Complexo Hospitalario Universidade de Santiago de Compostela (USC), 15782, Galicia (Spain) [Servicio de Medicina Nuclear, Complexo Hospitalario Universidade de Santiago de Compostela (USC), 15782, Galicia (Spain); Grupo de Imaxe Molecular, Instituto de Investigacin Sanitarias (IDIS), Santiago de Compostela, 15706, Galicia (Spain); Fundacin Tejerina, 28003, Madrid (Spain)

2014-05-15T23:59:59.000Z

297

SU-E-I-07: An Improved Technique for Scatter Correction in PET  

SciTech Connect (OSTI)

Purpose: In positron emission tomography (PET), the single scatter simulation (SSS) algorithm is widely used for scatter estimation in clinical scans. However, bias usually occurs at the essential steps of scaling the computed SSS distribution to real scatter amounts by employing the scatter-only projection tail. The bias can be amplified when the scatter-only projection tail is too small, resulting in incorrect scatter correction. To this end, we propose a novel scatter calibration technique to accurately estimate the amount of scatter using pre-determined scatter fraction (SF) function instead of the employment of scatter-only tail information. Methods: As the SF depends on the radioactivity distribution and the attenuating material of the patient, an accurate theoretical relation cannot be devised. Instead, we constructed an empirical transformation function between SFs and average attenuation coefficients based on a serious of phantom studies with different sizes and materials. From the average attenuation coefficient, the predicted SFs were calculated using empirical transformation function. Hence, real scatter amount can be obtained by scaling the SSS distribution with the predicted SFs. The simulation was conducted using the SimSET. The Siemens Biograph 6 PET scanner was modeled in this study. The Software for Tomographic Image Reconstruction (STIR) was employed to estimate the scatter and reconstruct images. The EEC phantom was adopted to evaluate the performance of our proposed technique. Results: The scatter-corrected image of our method demonstrated improved image contrast over that of SSS. For our technique and SSS of the reconstructed images, the normalized standard deviation were 0.053 and 0.182, respectively; the root mean squared errors were 11.852 and 13.767, respectively. Conclusion: We have proposed an alternative method to calibrate SSS (C-SSS) to the absolute scatter amounts using SF. This method can avoid the bias caused by the insufficient tail information and therefore improve the accuracy of scatter estimation.

Lin, S; Wang, Y; Lue, K; Lin, H; Chuang, K [Chuang, National Tsing Hua University, Hsichu, Taiwan (China)

2014-06-01T23:59:59.000Z

298

High density polyethylene (HDPE) containers as an alternative to polyethylene terephthalate (PET) bottles for solar disinfection of drinking water in northern region, Ghana  

E-Print Network [OSTI]

The purpose of this study is to investigate the technical feasibility of high density polyethylene (HDPE) containers as an alternative to polyethylene terephthalate (PET) bottles for the solar disinfection of drinking water ...

Yazdani, Iman

2007-01-01T23:59:59.000Z

299

Parity violation in nuclear magnetic resonance frequencies of chiral tetrahedral tungsten complexes NWXYZ (X, Y, Z = H, F, Cl, Br or I)  

SciTech Connect (OSTI)

Density functional theory within the two-component quasi-relativistic zeroth-order regular approximation (ZORA) is used to predict parity violation shifts in {sup 183}W nuclear magnetic resonance shielding tensors of chiral, tetrahedrally bonded tungsten complexes of the form NWXYZ (X, Y, Z = H, F, Cl, Br or I), as well as for the heavier systems NWHAtF and NWH(117)F for comparison. The calculations reveal that sub-mHz accuracy is required to detect such tiny effects in this class of compounds, and that parity violation effects are very sensitive to the choice of ligands.

Nahrwold, Sophie, E-mail: nahrwold@fias.uni-frankfurt.de; Berger, Robert, E-mail: r.berger@fias.uni-frankfurt.de [Frankfurt Institute for Advanced Studies, Goethe-University Frankfurt am Main, Ruth-Moufang-Str. 1, D-60438 Frankfurt am Main (Germany) [Frankfurt Institute for Advanced Studies, Goethe-University Frankfurt am Main, Ruth-Moufang-Str. 1, D-60438 Frankfurt am Main (Germany); Clemens-Schpf-Institute, Technical University Darmstadt, Petersenstr. 22, D-64287 Darmstadt (Germany); Schwerdtfeger, Peter, E-mail: p.a.schwerdtfeger@massey.ac.nz [Centre for Theoretical Chemistry and Physics, The New Zealand Institute for Advanced Study, Massey University Albany, Private Bag 102904, North Shore City, Auckland 0745 (New Zealand) [Centre for Theoretical Chemistry and Physics, The New Zealand Institute for Advanced Study, Massey University Albany, Private Bag 102904, North Shore City, Auckland 0745 (New Zealand); Fachbereich Chemie, Philipps-Universitt Marburg, Hans-Meerwein-Str., D-35032 Marburg (Germany)

2014-01-14T23:59:59.000Z

300

Reactive halogens (BrO and OClO) detected in the plume of Soufrire Hills Volcano during an eruption hiatus  

E-Print Network [OSTI]

Volcano Observatory operationally meas- ures SO2 flux from the volcano during daylight hours, with a network of scanning UV spectrometers [Edmonds et al., 2003a, 2003b; Christopher et al., 2010] using Differential Optical Absorption Spectroscopy (DOAS... measurements being higher this is consistent with models [e.g., von Glasow et al., 2002]. BrO abundance has been observed to correlate with that of SO2 during daylight [Bobrowski et al., 2003; Kern et al., 2009]. OClO is formed from the reaction between Cl...

Donovan, Amy; Tsanev, Vitchko; Oppenheimer, Clive; Edmonds, Marie

2014-08-20T23:59:59.000Z

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


301

Lead (II) selenite halides Pb{sub 3}(SeO{sub 3}){sub 2}X{sub 2} (X = Br, I): Synthesis and crystal structure  

SciTech Connect (OSTI)

Two lead selenite halides, Pb{sub 3}(SeO{sub 3}){sub 2}Br{sub 2} and Pb{sub 3}(SeO{sub 3}){sub 2}I{sub 2}, have been prepared by solid-phase synthesis and structurally characterized. These compounds are isotypic and can be considered 3D with a microporous framework composed of lead polyhedra (distorted Archimedean antiprisms formed by oxygen and halogen atoms). The framework contains channels oriented in the [010] direction. These channels contain selenium atoms, which are bound with framework oxygen atoms belonging to different lead polyhedra.

Berdonosov, P. S., E-mail: berdonosov@inorg.chem.msu.ru; Olenev, A. V.; Dolgikh, V. A. [Moscow State University (Russian Federation)

2012-03-15T23:59:59.000Z

302

Radiolabeled Peptide Scaffolds for PET/SPECT - Optical in Vivo Imaging of Carbohydrate-Lectin Interactions  

SciTech Connect (OSTI)

The objective of this research is to develop phage display-selected peptides into radio- and fluoresecently- labeled scaffolds for the multimodal imaging of carbohydrate-lectin interactions. While numerous protein and receptor systems are being explored for the development of targeted imaging agents, the targeting and analysis of carbohydrate-lectin complexes in vivo remains relatively unexplored. Antibodies, nanoparticles, and peptides are being developed that target carbohydrate-lectin complexes in living systems. However, antibodies and nanoparticles often suffer from slow clearance and toxicity problems. Peptides are attractive alternative vehicles for the specific delivery of radionuclides or fluorophores to sites of interest in vivo, although, because of their size, uptake and retention may be less than antibodies. We have selected high affinity peptides that bind a specific carbohydrate-lectin complex involved in cell-cell adhesion and cross-linking using bacteriophage (phage) display technologies (1,2). These peptides have allowed us to probe the role of these antigens in cell adhesion. Fluorescent versions of the peptides have been developed for optical imaging and radiolabeled versions have been used in single photon emission computed tomography (SPECT) and positron emission tomography (PET) in vivo imaging (3-6). A benefit in employing the radiolabeled peptides in SPECT and PET is that these imaging modalities are widely used in living systems and offer deep tissue sensitivity. Radiolabeled peptides, however, often exhibit poor stability and high kidney uptake in vivo. Conversely, optical imaging is sensitive and offers good spatial resolution, but is not useful for deep tissue penetration and is semi-quantitative. Thus, multimodality imaging that relies on the strengths of both radio- and optical- imaging is a current focus for development of new in vivo imaging agents. We propose a novel means to improve the efficacy of radiolabeled and fluorescently labeled peptides, including our lectin/carbohydrate- targeting peptides, by displaying the targeting epitopes on small ~29 amino acid cyclic plant protein scaffolds known as cyclotides. Cyclotides are extremely stable molecules with long serum half-lives and low kidney uptake (7). More than one copy of the peptide can be engineered into the cyclotide loops, thus increasing the avidity of the peptide construct for its target.

Deutscher, Susan

2014-09-30T23:59:59.000Z

303

Synthesis and the crystal and molecular structures of 4-(piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinone-7,12 Mono- and dibromohydrates (HL)Br . 3H{sub 2}O and (H{sub 2}L)Br{sub 2} . 3H{sub 2}O  

SciTech Connect (OSTI)

4-(Piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinone-7,12 monobromohydrate (HL)Br . 3H{sub 2}O (I) and 4-(piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinone-7,12 dibromohydrate (H{sub 2}L)Br{sub 2} . 3H{sub 2}O (II) are isolated in the crystalline state. The crystal structures of compounds I and II are determined using X-ray diffraction. It is established that the protonation of 4-(piperidyl-1)-2-phenylpyrido[2,3-a]anthraquinone-7,12 proceeds primarily through the pyridine atom at pH 2-3. The attachment of the second proton occurs through the piperidine nitrogen atom at pH {approx} 1.

Kovalchukova, O. V., E-mail: okovalchukova@mail.ru [Peoples' Friendship University of Russia (Russian Federation); Stash, A. I.; Belsky, V. K. [Karpov Institute of Physical Chemistry (Russian Federation); Strashnova, S. B.; Zaitsev, B. E.; Ryabov, M. A. [Peoples' Friendship University of Russia (Russian Federation)

2009-01-15T23:59:59.000Z

304

Test of a single module of the J-PET scanner based on plastic scintillators  

E-Print Network [OSTI]

Time of Flight Positron Emission Tomography scanner based on plastic scintillators is being developed at the Jagiellonian University by the J-PET collaboration. The main challenge of the conducted research lies in the elaboration of a method allowing application of plastic scintillators for the detection of low energy gamma quanta. In this article we report on tests of a single detection module built out from BC-420 plastic scintillator strip (with dimensions of 5x19x300mm^3) read out at two ends by Hamamatsu R5320 photomultipliers. The measurements were performed using collimated beam of annihilation quanta from the 68Ge isotope and applying the Serial Data Analyzer (Lecroy SDA6000A) which enabled sampling of signals with 50ps intervals. The time resolution of the prototype module was established to be better than 80ps (sigma) for a single level discrimination. The spatial resolution of the determination of the hit position along the strip was determined to be about 0.93cm (sigma) for the annihilation quanta. The fractional energy resolution for the energy E deposited by the annihilation quanta via the Compton scattering amounts to sigma(E)/E = 0.044/sqrt(E[MeV]) and corresponds to the sigma(E)/E of 7.5% at the Compton edge.

P. Moskal; Sz. Nied?wiecki; T. Bednarski; E. Czerwi?ski; ?. Kap?on; E. Kubicz; I. Moskal; M. Pawlik-Nied?wiecka; N. G. Sharma; M. Silarski; M. Zieli?ski; N. Zo?; P. Bia?as; A. Gajos; A. Kochanowski; G. Korcyl; J. Kowal; P. Kowalski; T. Kozik; W. Krzemie?; M. Molenda; M. Pa?ka; L. Raczy?ski; Z. Rudy; P. Salabura; A. S?omski; J. Smyrski; A. Strzelecki; A. Wieczorek; W. Wi?licki

2014-08-29T23:59:59.000Z

305

Synthesis of reduced graphene oxide/ZnO nanorods composites on graphene coated PET flexible substrates  

SciTech Connect (OSTI)

Graphical abstract: - Highlights: ZnO nanorods synthesized on CVD-graphene and rGO surfaces, respectively. ZnO/CVD-graphene and ZnO/rGO form a distinctive porous 3D structure. rGO/ZnO nanostructures possibility in energy storage devices. - Abstract: In this work, reduced graphene oxide (rGO)/ZnO nanorods composites were synthesized on graphene coated PET flexible substrates. Both chemical vapor deposition (CVD) graphene and reduced graphene oxide (rGO) films were prepared following by hydrothermal growth of vertical aligned ZnO nanorods. Reduced graphene sheets were then spun coated on the ZnO materials to form a three dimensional (3D) porous nanostructure. The morphologies of the ZnO/CVD graphene and ZnO/rGO were investigated by SEM, which shows that the ZnO nanorods grown on rGO are larger in diameters and have lower density compared with those grown on CVD graphene substrate. As a result of fact, the rough surface of nano-scale ZnO on rGO film allows rGO droplets to seep into the large voids of ZnO nanorods, then to form the rGO/ZnO hierarchical structure. By comparison of the different results, we conclude that rGO/ZnO 3D nanostructure is more desirable for the application of energy storage devices.

Huang, Lei, E-mail: leihuang@shnu.edu.cn; Guo, Guilue; Liu, Yang; Chang, Quanhong; Shi, Wangzhou

2013-10-15T23:59:59.000Z

306

Band Structure Parameters and Fermi Resonances of Exciton-Polaritons in CsI and CsBr under Hydrostatic Pressure  

SciTech Connect (OSTI)

Most alkali halides crystallize in the fcc sodium chloride structure. In contrast, with the exception of CsF, the Cs-halides form the simple cubic cesium chloride (CsCl) structure at ambient conditions and they have a substantially different electronic structure than other alkali halides; in particular, they have several nearly degenerate electronic levels near the Brillouin zone center. Highly resolved Three-Photon Spectroscopy (TPS) measurements allow direct observation of the near band edge structure and, in the case of CsI, probe more states than one-photon techniques. A number of interesting phenomena, among them level repulsion (Fermi resonance), occur as these levels are tuned through one another by application of hydrostatic pressure. To the best of our knowledge, this has been observed for CsBr for the first time. Doubling the photon energy range compared to a previous publication [see Yoo et al. PRL 84, 3875 (2000)] allows direct observation of the n=1, 2 and 3 exciton-polariton members of the {Lambda}{sub 8}{sup -}-{Lambda}{sub 6}{sup +} transition in CsI and lets us establish unambiguous values for the bandgap (6.139 eV), binding energy (0.265 eV) and their pressure dependence up to 7 kbar. Similarly to CsI, the CsBr linewidth of the lowest {Lambda}{sub 4}{sup -} polariton (A) decreases upon compression.

Lipp, M J; Yoo, C H; Strachan, D; Daniels, W B

2005-11-29T23:59:59.000Z

307

Design and experimental testing of the performance of an outdoor LiBr/H{sub 2}O solar thermal absorption cooling system with a cold store  

SciTech Connect (OSTI)

A domestic-scale prototype experimental solar cooling system has been developed based on a LiBr/H{sub 2}O absorption system and tested during the 2007 summer and autumn months in Cardiff University, UK. The system consisted of a 12 m{sup 2} vacuum tube solar collector, a 4.5 kW LiBr/H{sub 2}O absorption chiller, a 1000 l cold storage tank and a 6 kW fan coil. The system performance, as well as the performances of the individual components in the system, were evaluated based on the physical measurements of the daily solar radiation, ambient temperature, inlet and outlet fluid temperatures, mass flow rates and electrical consumption by component. The average coefficient of thermal performance (COP) of the system was 0.58, based on the thermal cooling power output per unit of available thermal solar energy from the 12 m{sup 2} Thermomax DF100 vacuum tube collector on a hot sunny day with average peak insolation of 800 W/m{sup 2} (between 11 and 13.30 h) and ambient temperature of 24 C. The system produced an electrical COP of 3.6. Experimental results prove the feasibility of the new concept of cold store at this scale, with chilled water temperatures as low as 7.4 C, demonstrating its potential use in cooling domestic scale buildings. (author)

Agyenim, Francis; Knight, Ian; Rhodes, Michael [The Welsh School of Architecture, Bute Building, King Edward VII Avenue, Cardiff University, Cardiff, CF10 3NB Wales (United Kingdom)

2010-05-15T23:59:59.000Z

308

Automatic Channel Fault Detection and Diagnosis System for a Small Animal APD-Based Digital PET Scanner  

E-Print Network [OSTI]

Fault detection and diagnosis is critical to many applications in order to ensure proper operation and performance over time. Positron emission tomography (PET) systems that require regular calibrations by qualified scanner operators are good candidates for such continuous improvements. Furthermore, for scanners employing one-to-one coupling of crystals to photodetectors to achieve enhanced spatial resolution and contrast, the calibration task is even more daunting because of the large number of independent channels involved. To cope with the additional complexity of the calibration and quality control procedures of these scanners, an intelligent system (IS) was designed to perform fault detection and diagnosis (FDD) of malfunctioning channels. The IS can be broken down into four hierarchical modules: parameter extraction, channel fault detection, fault prioritization and diagnosis. Of these modules, the first two have previously been reported and this paper focuses on fault prioritization and diagnosis. The purpose of the fault prioritization module is to help the operator to zero in on the faults that need immediate attention. The fault diagnosis module will then identify the causes of the malfunction and propose an explanation of the reasons that lead to the diagnosis. The FDD system was implemented on a LabPET avalanche photodiode (APD)-based digital PET scanner. Experiments demonstrated a FDD Sensitivity of 99.3 % (with a 95% confidence interval (CI) of: [98.7, 99.9]) for major faults. Globally, the Balanced Accuracy of the diagnosis for varying fault severities is 92 %. This suggests the IS can greatly benefit the operators in their maintenance task.

Jonathan Charest; Jean-Franois Beaudoin; Jules Cadorette; Roger Lecomte; Charles-Antoine Brunet; Rjean Fontaine

2014-06-16T23:59:59.000Z

309

Isotope specific resolution recovery image reconstruction in high resolution PET imaging  

SciTech Connect (OSTI)

Purpose: Measuring and incorporating a scanner-specific point spread function (PSF) within image reconstruction has been shown to improve spatial resolution in PET. However, due to the short half-life of clinically used isotopes, other long-lived isotopes not used in clinical practice are used to perform the PSF measurements. As such, non-optimal PSF models that do not correspond to those needed for the data to be reconstructed are used within resolution modeling (RM) image reconstruction, usually underestimating the true PSF owing to the difference in positron range. In high resolution brain and preclinical imaging, this effect is of particular importance since the PSFs become more positron range limited and isotope-specific PSFs can help maximize the performance benefit from using resolution recovery image reconstruction algorithms. Methods: In this work, the authors used a printing technique to simultaneously measure multiple point sources on the High Resolution Research Tomograph (HRRT), and the authors demonstrated the feasibility of deriving isotope-dependent system matrices from fluorine-18 and carbon-11 point sources. Furthermore, the authors evaluated the impact of incorporating them within RM image reconstruction, using carbon-11 phantom and clinical datasets on the HRRT. Results: The results obtained using these two isotopes illustrate that even small differences in positron range can result in different PSF maps, leading to further improvements in contrast recovery when used in image reconstruction. The difference is more pronounced in the centre of the field-of-view where the full width at half maximum (FWHM) from the positron range has a larger contribution to the overall FWHM compared to the edge where the parallax error dominates the overall FWHM. Conclusions: Based on the proposed methodology, measured isotope-specific and spatially variant PSFs can be reliably derived and used for improved spatial resolution and variance performance in resolution recovery image reconstruction. The benefits are expected to be more substantial for more energetic positron emitting isotopes such as Oxygen-15 and Rubidium-82.

Kotasidis, Fotis A. [Division of Nuclear Medicine and Molecular Imaging, Geneva University Hospital, CH-1211 Geneva, Switzerland and Wolfson Molecular Imaging Centre, MAHSC, University of Manchester, M20 3LJ, Manchester (United Kingdom)] [Division of Nuclear Medicine and Molecular Imaging, Geneva University Hospital, CH-1211 Geneva, Switzerland and Wolfson Molecular Imaging Centre, MAHSC, University of Manchester, M20 3LJ, Manchester (United Kingdom); Angelis, Georgios I. [Faculty of Health Sciences, Brain and Mind Research Institute, University of Sydney, NSW 2006, Sydney (Australia)] [Faculty of Health Sciences, Brain and Mind Research Institute, University of Sydney, NSW 2006, Sydney (Australia); Anton-Rodriguez, Jose; Matthews, Julian C. [Wolfson Molecular Imaging Centre, MAHSC, University of Manchester, Manchester M20 3LJ (United Kingdom)] [Wolfson Molecular Imaging Centre, MAHSC, University of Manchester, Manchester M20 3LJ (United Kingdom); Reader, Andrew J. [Montreal Neurological Institute, McGill University, Montreal QC H3A 2B4, Canada and Department of Biomedical Engineering, Division of Imaging Sciences and Biomedical Engineering, King's College London, St. Thomas Hospital, London SE1 7EH (United Kingdom)] [Montreal Neurological Institute, McGill University, Montreal QC H3A 2B4, Canada and Department of Biomedical Engineering, Division of Imaging Sciences and Biomedical Engineering, King's College London, St. Thomas Hospital, London SE1 7EH (United Kingdom); Zaidi, Habib [Division of Nuclear Medicine and Molecular Imaging, Geneva University Hospital, CH-1211 Geneva (Switzerland) [Division of Nuclear Medicine and Molecular Imaging, Geneva University Hospital, CH-1211 Geneva (Switzerland); Geneva Neuroscience Centre, Geneva University, CH-1205 Geneva (Switzerland); Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, PO Box 30 001, Groningen 9700 RB (Netherlands)

2014-05-15T23:59:59.000Z

310

Estimation of steady-state and transcient power distributions for the RELAP analyses of the 1963 loss-of-flow and loss-of-pressure tests at BR2.  

SciTech Connect (OSTI)

To support the safety analyses required for the conversion of the Belgian Reactor 2 (BR2) from highly-enriched uranium (HEU) to low-enriched uranium (LEU) fuel, the simulation of a number of loss-of-flow tests, with or without loss of pressure, has been undertaken. These tests were performed at BR2 in 1963 and used instrumented fuel assemblies (FAs) with thermocouples (TC) imbedded in the cladding as well as probes to measure the FAs power on the basis of their coolant temperature rise. The availability of experimental data for these tests offers an opportunity to better establish the credibility of the RELAP5-3D model and methodology used in the conversion analysis. In order to support the HEU to LEU conversion safety analyses of the BR2 reactor, RELAP simulations of a number of loss-of-flow/loss-of-pressure tests have been undertaken. Preliminary analyses showed that the conservative power distributions used historically in the BR2 RELAP model resulted in a significant overestimation of the peak cladding temperature during the transient. Therefore, it was concluded that better estimates of the steady-state and decay power distributions were needed to accurately predict the cladding temperatures measured during the tests and establish the credibility of the RELAP model and methodology. The new approach ('best estimate' methodology) uses the MCNP5, ORIGEN-2 and BERYL codes to obtain steady-state and decay power distributions for the BR2 core during the tests A/400/1, C/600/3 and F/400/1. This methodology can be easily extended to simulate any BR2 core configuration. Comparisons with measured peak cladding temperatures showed a much better agreement when power distributions obtained with the new methodology are used.

Dionne, B.; Tzanos, C. P. (Nuclear Engineering Division)

2011-05-23T23:59:59.000Z

311

Hit time and hit position reconstruction in the J-PET detector based on a library of averaged model signals  

E-Print Network [OSTI]

In this article we present a novel method of hit time and hit position reconstruction in long scintillator detectors. We take advantage of the fact that for this kind of detectors amplitude and shape of registered signals depends strongly on the position where particle hit the detector. The reconstruction is based on determination of the degree of similarity between measured and averaged signals stored in a library for a set of well-defined positions along the scintillator. Preliminary results of validation of the introduced method with experimental data obtained by means of the double strip prototype of the J-PET detector are presented.

Moskal, P; Silarski, M; Bednarski, T; Bia?as, P; Bu?ka, J; Czerwi?ski, E; Gajos, A; Kami?ska, D; Kap?on, L; Kochanowski, A; Korcyl, G; Kowal, J; Kowalski, P; Kozik, T; Krzemie?, W; Kubicz, E; Nied?wiecki, Sz; Pa?ka, M; Raczy?ski, L; Rudy, Z; Rundel, O; Salabura, P; S?omski, A; Smyrski, J; Strzelecki, A; Wieczorek, A; Wi?licki, W; Wochlik, I; Zieli?ski, M; Zo?, N

2015-01-01T23:59:59.000Z

312

Synthesis of macrocyclic polyaminocarboxylates and their use for preparing stable radiometal antibody immunoconjugates for therapy, spect and pet imaging  

DOE Patents [OSTI]

A simple method for the synthesis of 1,4,7,10-tetraazacyclododecane N,N'N",N'"-tetraacetic acid and 1,4,8,11-tetraazacyclotetradecane N,N',N",N'"-tetraacetic acid involves cyanomethylating 1,4,7,10-tetraazacyclododecane or 1,4,8,11-tetraazacyclotetradecane to form a tetranitrile and hydrolyzing the tetranitrile. These macrocyclic compounds are functionalized through one of the carboxylates and then conjugated to various biological molecules including monoclonal antibodies. The resulting conjugated molecules are labeled with radiometals for SPECT and PET imaging and for radiotherapy.

Mease, Ronnie C. (Fairfax, VA); Mausner, Leonard F. (Stony Brook, NY); Srivastava, Suresh C. (Setauket, NY)

1995-06-27T23:59:59.000Z

313

FDG-PET Assessment of the Effect of Head and Neck Radiotherapy on Parotid Gland Glucose Metabolism  

SciTech Connect (OSTI)

Purpose: Functional imaging with [F-18]-fluorodeoxyglucose positron emission tomography (FDG-PET) provides the opportunity to define the physiology of the major salivary glands before and after radiation therapy. The goal of this retrospective study was to identify the radiation dose-response relationship of parotid gland glucose metabolism in patients with head and neck squamous cell carcinoma (HNSCC). Materials and Methods: Forty-nine adults with HNSCC were identified who had curative intent intensity-modulated radiation therapy (IMRT) and FDG-PET imaging before and after treatment. Using a graphical user interface, contours were delineated for the parotid glands on axial CT slices while all authors were blinded to paired PET slices. Average and maximal standard uptake values (SUV) were measured within these anatomic regions. Changes in SUV and volume after radiation therapy were correlated with parotid gland dose-volume histograms from IMRT plans. Results: The average parotid gland volume was 30.7 mL and contracted 3.9 {+-} 1.9% with every increase of 10 Gy in mean dose (p = 0.04). However, within the first 3 months after treatment, there was a uniform reduction of 16.5% {+-} 7.3% regardless of dose. The average SUV{sub mean} of the glands was 1.63 {+-} 0.48 pretreatment and declined by 5.2% {+-} 2.5% for every increase of 10 Gy in mean dose (p = 0.04). The average SUV{sub max} was 4.07 {+-} 2.85 pretreatment and decreased in a sigmoid manner with mean dose. A threshold of 32 Gy for mean dose existed, after which SUV{sub max} declined rapidly. Conclusion: Radiation dose responses of the parotid glands can be measured by integrated CT/FDG-PET scans. Retrospective analysis showed sigmoidal declines in the maximum metabolism but linear declines in the average metabolism of the glands with dose. Future studies should correlate this decline in FDG uptake with saliva production to improve treatment planning.

Roach, Michael C. [School of Medicine, Duke University Medical Center, Duke University, Durham, NC (United States); Turkington, Timothy G. [Department of Radiology, Duke University Medical Center, Duke University, Durham, NC (United States); Department of Biomedical Engineering, Duke University Medical Center, Duke University, Durham, NC (United States); Higgins, Kristin A. [Department of Radiation Oncology, Duke University Medical Center, Duke University, Durham, NC (United States); Hawk, Thomas C. [Department of Radiology, Duke University Medical Center, Duke University, Durham, NC (United States); Hoang, Jenny K. [Department of Radiology, Duke University Medical Center, Duke University, Durham, NC (United States); Department of Radiation Oncology, Duke University Medical Center, Duke University, Durham, NC (United States); Brizel, David M., E-mail: david.brizel@duke.edu [Department of Radiation Oncology, Duke University Medical Center, Duke University, Durham, NC (United States); Department of Surgery, Duke University Medical Center, Duke University, Durham, NC (United States)

2012-01-01T23:59:59.000Z

314

Synthesis of macrocyclic polyaminocarboxylates and their use for preparing stable radiometal antibody immunoconjugates for therapy, SPECT and PET imaging  

DOE Patents [OSTI]

A simple method for the synthesis of 1,4,7,10-tetraazacyclododecane N,N{prime}N{double_prime},N{prime}{double_prime}-tetraacetic acid and 1,4,8,11-tetraazacyclotetradecane N,N{prime},N{double_prime},N{prime}{double_prime}-tetraacetic acid involves cyanomethylating 1,4,7,10-tetraazacyclododecane or 1,4,8,11-tetraazacyclotetradecane to form a tetranitrile and hydrolyzing the tetranitrile. These macrocyclic compounds are functionalized through one of the carboxylates and then conjugated to various biological molecules including monoclonal antibodies. The resulting conjugated molecules are labeled with radiometals for SPECT and PET imaging and for radiotherapy. 4 figs.

Mease, R.C.; Mausner, L.F.; Srivastava, S.C.

1995-06-27T23:59:59.000Z

315

Compared Raman study of the phase transitions in K2ZnCl4 and Rb2ZnCl4, Rb2ZnBr4, K2SeO4  

E-Print Network [OSTI]

787 Compared Raman study of the phase transitions in K2ZnCl4 and Rb2ZnCl4, Rb2ZnBr4, K2SeO4 M to the incommensurate phase is discussed for the four compounds K2SeO4, K2ZnCl4, Rb2ZnCl4 and Rb2ZnBr4 on the basis measurements on K2ZnC'4 known to exhibit successive phase transitions similar to those of K2SeO4

Paris-Sud XI, Universit de

316

Energy resolution of gamma-ray spectroscopy of JET plasmas with a LaBr{sub 3} scintillator detector and digital data acquisition  

SciTech Connect (OSTI)

A new high efficiency, high resolution, fast {gamma}-ray spectrometer was recently installed at the JET tokamak. The spectrometer is based on a LaBr{sub 3}(Ce) scintillator coupled to a photomultiplier tube. A digital data acquisition system is used to allow spectrometry with event rates in excess of 1 MHz expected in future JET DT plasmas. However, at the lower rates typical of present day experiments, digitization can degrade the energy resolution of the system, depending on the algorithms used for extracting pulse height information from the digitized pulses. In this paper, the digital and analog spectrometry methods were compared for different experimental conditions. An algorithm based on pulse shape fitting was developed, providing energy resolution equivalent to the traditional analog spectrometry method.

Nocente, M.; Tardocchi, M.; Grosso, G.; Perelli Cippo, E.; Pietropaolo, A.; Proverbio, I.; Gorini, G. [Dipartimento di Fisica, Universita degli Studi di Milano-Bicocca and Istituto di Fisica del Plasma, Associazione EURATOM-ENEA-CNR, 20125 Milano (Italy); Chugunov, I.; Gin, D.; Shevelev, A. [A. F. Ioffe Physico-Technical Institute, St. Petersburg 194021 (Russian Federation); Pereira, R. C.; Fernandes, A. M.; Neto, A.; Sousa, J. [Associacao EURATOM/IST Centro de Fusao Nuclear, Instituto Superior Tecnico, 1049-001 Lisboa (Portugal); Edlington, T.; Kiptily, V.; Syme, B. [Culham Centre for Fusion Energy, Culham OX143DB (United Kingdom); Murari, A. [Consorzio RFX, 35127 Padova (Italy); Collaboration: JET-EFDA Contributors

2010-10-15T23:59:59.000Z

317

Infrared phonon modes in multiferroic single-crystal FeTe2O5Br  

SciTech Connect (OSTI)

Reflection and transmission as a function of temperature (7300 K and 5300 K respectively) have been measured on single crystals of the multiferroic compound FeTe2O5Br utilizing light spanning from the far infrared to the visible. The complex dielectric function and other optical properties were obtained via Kramers-Kronig analysis and by fits to a Drude-Lortentz model. Analysis of the anisotropic excitation spectra via Drude-Lorentz fitting and lattice dynamical calculations have led to the observation of 43 of the 53 modes predicted along the b axis of the monoclinic cell. The phonon response parallel to the a and c axes are also presented. Assignments to groups (clusters) of phonons have been made and trends within them are discussed in light of our calculated displacement patterns.

Miller, K. H.; Xu, X. S.; Berger, H.; Craciun, V.; Xi, Xiaoxiang; Martin, C.; Carr, G. L.; Tanner, D. B.

2013-06-01T23:59:59.000Z

318

Ion-pairing in aqueous CaCl2 and RbBr solutions: simultaneous structural refinement of XAFS and XRD data  

SciTech Connect (OSTI)

We present a new methodology involving the simultaneous refinement of both x-ray absorption and x-ray diffraction spectra (X-ray Absorption/Diffraction Structural Refinement,XADSR), to study hydration and ion pair structure of CaCl2 and RbBr salts in concentrated aqueous solutions. The XADSR analysis includes the XAFS spectra analysis of both the cation and anion as a probe of their short-range structure with an XRD spectral analysis as a probe of the global structural. Together they deliver a comprehensive picture of the cation and anion hydration, the contact ion pair (CIP) structure and the solvent-separated ion pair (SSIP) structure. XADSR analysis of 6.0 m aqueous CaCl2 reveals that there are an insignificant number of Ca2+-Cl- CIPs, but there are approximately 3.4 SSIPs separated by about 4.99 . In contrast XADSR analysis of aqueous RbBr yields about 0.7 pair CIP at a bond length 3.51 . The present work demonstrates a new approach for a direct co-refinement of XRD and XAFS spectra in a simple and reliable fashion, opening new opportunities for analysis in various disordered and crystalline systems. This work was supported by the U.S. Department of Energy (DOE), Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences. Pacific Northwest National Laboratory (PNNL) is operated for the U.S. Department of Energy by Battelle.

Pham, Thai V.; Fulton, John L.

2013-01-28T23:59:59.000Z

319

Design of an Automated System for Synthesis of [18 F] FDG for PET Investigation at IFIN-HH Bucharest  

SciTech Connect (OSTI)

A novel apparatus constructed at IFIN-HH is described for automated synthesis of radiopharmaceuticals labeled with {sup 18}F for use in positron emission tomography (PET) investigations. [18 F] fluoride was produced at the IFIN-HH cyclotron by irradiation of H{sub 2}O enriched 97% in {sup 18}O with 13 MeV deuterons, or 8 MeV protons. The irradiated H{sub 2}O was transferred (injected) into the radiochemical fully-automated processing systems which ensured the separation of {sup 18}F from H{sub 2}O, the labeling with {sup 18}F, and finally purified by filtration with selective absorbants. The system is easy to operate and contains a programmable logical controller that manages the entire operation program stored in its internal memory. The computer is used to assist the operator during the different steps of synthesis and to allow visualization of the process and printing the report. The device was used for used for the production of 2-[18 F] FLUORO-2-DEOXY-D-GLUCOSE at the IFIN-HH cyclotron, one of the most used radiopharmaceutical in PET investigations. The synthesis module is configured so that is flexible enough to accomplish other nucleophile reactions of labeling with short lived radioisotopes.

Craciun, Liviu Stefan; Cimpeanu, Catalina; Constantinescu, Olimpiu; Dudu, Dorin; Ionescu, Cristina; Negoita, Nicolae; Racolta, Petru Mihai; Rusen, Ion [Applied Nuclear Physics Department, 'Horia Hulubei' National Institute for Physics and Nuclear Engineering, Atomistilor 407, P.O. Box MG-6, Magurele, jud. Ilfov, Bucharest R-077125 (Romania)

2009-03-10T23:59:59.000Z

320

Julian, B.R. and G.R. Foulger, Monitoring Geothermal Processes with Microearthquake Mechanisms, Thirty-Fourth Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, February 9-  

E-Print Network [OSTI]

Julian, B.R. and G.R. Foulger, Monitoring Geothermal Processes with Microearthquake Mechanisms, Thirty- Fourth Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, February 9- 11, 2009. Monitoring Geothermal Processes with Microearthquake Mechanisms Bruce R. Julian, U. S

Foulger, G. R.

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


321

Investigation of realistic PET simulations incorporating tumor patient's specificity using anthropomorphic models: Creation of an oncology database  

SciTech Connect (OSTI)

Purpose: The GATE Monte Carlo simulation toolkit is used for the implementation of realistic PET simulations incorporating tumor heterogeneous activity distributions. The reconstructed patient images include noise from the acquisition process, imaging system's performance restrictions and have limited spatial resolution. For those reasons, the measured intensity cannot be simply introduced in GATE simulations, to reproduce clinical data. Investigation of the heterogeneity distribution within tumors applying partial volume correction (PVC) algorithms was assessed. The purpose of the present study was to create a simulated oncology database based on clinical data with realistic intratumor uptake heterogeneity properties.Methods: PET/CT data of seven oncology patients were used in order to create a realistic tumor database investigating the heterogeneity activity distribution of the simulated tumors. The anthropomorphic models (NURBS based cardiac torso and Zubal phantoms) were adapted to the CT data of each patient, and the activity distribution was extracted from the respective PET data. The patient-specific models were simulated with the Monte Carlo Geant4 application for tomography emission (GATE) in three different levels for each case: (a) using homogeneous activity within the tumor, (b) using heterogeneous activity distribution in every voxel within the tumor as it was extracted from the PET image, and (c) using heterogeneous activity distribution corresponding to the clinical image following PVC. The three different types of simulated data in each case were reconstructed with two iterations and filtered with a 3D Gaussian postfilter, in order to simulate the intratumor heterogeneous uptake. Heterogeneity in all generated images was quantified using textural feature derived parameters in 3D according to the ground truth of the simulation, and compared to clinical measurements. Finally, profiles were plotted in central slices of the tumors, across lines with heterogeneous activity distribution for visual assessment.Results: The accuracy of the simulated database was assessed against the original clinical images. The PVC simulated images matched the clinical ones best. Local, regional, and global features extracted from the PVC simulated images were closest to the clinical measurements, with the exception of the size zone variability and the mean intensity values, where heterogeneous tumors showed better reproducibility. The profiles on PVC simulated tumors after postfiltering seemed to represent the more realistic heterogeneous regions with respect to the clinical reference.Conclusions: In this study, the authors investigated the input activity map heterogeneity in the GATE simulations of tumors with heterogeneous activity distribution. The most realistic heterogeneous tumors were obtained by inserting PVC activity distributions from the clinical image into the activity map of the simulation. Partial volume effect (PVE) can play a crucial role in the quantification of heterogeneity within tumors and have an important impact on applications such as patient follow-up during treatment and assessment of tumor response to therapy. The development of such a database incorporating patient anatomical and functional variability can be used to evaluate new image processing or analysis algorithms, while providing control of the ground truth, which is not available when dealing with clinical datasets. The database includes all images used and generated in this study, as well as the sinograms and the attenuation phantoms for further investigation. It is freely available to the interested reader of the journal at http://www.med.upatras.gr/oncobase/.

Papadimitroulas, Panagiotis; Efthimiou, Nikos; Nikiforidis, George C.; Kagadis, George C. [Department of Medical Physics, School of Medicine, University of Patras, Rion, GR 265 04 (Greece)] [Department of Medical Physics, School of Medicine, University of Patras, Rion, GR 265 04 (Greece); Loudos, George [Department of Biomedical Engineering, Technological Educational Institute of Athens, Ag. Spyridonos Street, Egaleo GR 122 10, Athens (Greece)] [Department of Biomedical Engineering, Technological Educational Institute of Athens, Ag. Spyridonos Street, Egaleo GR 122 10, Athens (Greece); Le Maitre, Amandine; Hatt, Mathieu; Tixier, Florent; Visvikis, Dimitris [Medical Information Processing Laboratory (LaTIM), National Institute of Health and Medical Research (INSERM), 29609 Brest (France)] [Medical Information Processing Laboratory (LaTIM), National Institute of Health and Medical Research (INSERM), 29609 Brest (France)

2013-11-15T23:59:59.000Z

322

Heavy Noble Gas Systematics of the Rochambeau Rift Plume: Towards Understanding the Xenon record of early Earth heterogeneities Maria Kocsisn Pet 1, Sujoy Mukhopadhyay 1, Katherine A. Kelley 2  

E-Print Network [OSTI]

of early Earth heterogeneities Maria Kocsisné Pet 1, Sujoy Mukhopadhyay 1, Katherine A. Kelley 2 1 Xenon preferentially recycled to the plume source. Deconvolution of fissiogenic Xenon isotope

Mukhopadhyay, Sujoy

323

Crystal structure and magnetic properties of two new cobalt selenite halides: Co{sub 5}(SeO{sub 3}){sub 4} X {sub 2} (X=Cl, Br)  

SciTech Connect (OSTI)

Two new isostructural cobalt selenite halides Co{sub 5}(SeO{sub 3}){sub 4}Cl{sub 2} and Co{sub 5}(SeO{sub 3}){sub 4}Br{sub 2} have been synthesized. They crystallize in the triclinic system space group P-1 with the following lattice parameters for Co{sub 5}(SeO{sub 3}){sub 4}Cl{sub 2}: a=6.4935(8) A, b=7.7288(8) A, c=7.7443(10) A, {alpha}=66.051(11){sup o}, {beta}=73.610(11){sup o}, {gamma}=81.268(9){sup o}, and Z=1. The crystal structures were solved from single-crystal X-ray data, R1=3.73 and 4.03 for Co{sub 5}(SeO{sub 3}){sub 4}Cl{sub 2} and Co{sub 5}(SeO{sub 3}){sub 4}Br{sub 2}, respectively. The new compounds are isostructural to Ni{sub 5}(SeO{sub 3}){sub 4}Br{sub 2}. Magnetic susceptibility measurements on oriented single-crystalline samples show anisotropic response in a broad temperature range. The anisotropic susceptibility is quantitatively interpreted within the zero-field splitting schemes for Co{sup 2+} and Ni{sup 2+} ions. Sharp low-temperature susceptibility features, at T {sub N}=18 and 20 K for Co{sub 5}(SeO{sub 3}){sub 4}Cl{sub 2} and Co{sub 5}(SeO{sub 3}){sub 4}Br{sub 2}, respectively, are ascribed to antiferromagnetic ordering in a minority magnetic subsystem. In isostructural Ni{sub 5}(SeO{sub 3}){sub 4}Br{sub 2} magnetically ordered subsystem represents a majority fraction (T {sub N}=46 K). Nevertheless, anisotropic susceptibility of Ni{sub 5}(SeO{sub 3}){sub 4}Br{sub 2} is dominated at low temperatures by a minority fraction, subject to single-ion anisotropy effects and increasing population of S{sub z} =0 (singlet) ground state of octahedrally coordinated Ni{sup 2+}. - Graphical abstract: Two new iso-structural cobalt selenite halides Co{sub 5}(SeO{sub 3}){sub 4}Cl{sub 2} and Co{sub 5}(SeO{sub 3}){sub 4}Br{sub 2} have been synthesized which are iso-structural to Ni{sub 5}(SeO{sub 3}){sub 4}Br{sub 2}. Magnetic susceptibility measurements on oriented single-crystalline samples show anisotropic response in a broad temperature range, revealing significant single-ion anisotropy effects.

Becker, Richard [Department of Inorganic Chemistry, Stockholm University, S-106 91 Stockholm (Sweden)], E-mail: richard@inorg.su.se; Prester, Mladen [Institute of Physics, P.O. Box 304, HR-10000 Zagreb (Croatia); Berger, Helmuth [Institut de Physique de la Matiere Complexe, Ecole Polytechnique Federale de Lausanne, CH-1015 Lausanne (Switzerland); Hui Lin, Ping [Institut de Physique de la Matiere Complexe, Ecole Polytechnique Federale de Lausanne, CH-1015 Lausanne (Switzerland); Institute of Physics, Academia Sinica Nankang, Taipei 11529, Taiwan, ROC (China); Johnsson, Mats [Department of Inorganic Chemistry, Stockholm University, S-106 91 Stockholm (Sweden); Drobac, Djuro [Institute of Physics, P.O. Box 304, HR-10000 Zagreb (Croatia); Zivkovic, Ivica [Institute of Physics, P.O. Box 304, HR-10000 Zagreb (Croatia)

2007-03-15T23:59:59.000Z

324

Clinical Value of [{sup 11}C]Methionine PET for Stereotactic Radiation Therapy With Intensity Modulated Radiation Therapy to Metastatic Brain Tumors  

SciTech Connect (OSTI)

Purpose: This study investigated the clinical impact of {sup 11}C-labeled methionine-positron emission tomography (MET-PET) for stereotactic radiation therapy with intensity modulated radiation therapy (SRT-IMRT) in metastatic brain tumors. Methods and Materials: Forty-two metastatic brain tumors were examined. All tumors were treated with SRT-IMRT using a helical tomotherapy system. Gross tumor volume (GTV) was defined and drawn on the stereotactic magnetic resonance (MR) image, taking into account the respective contributions of MR imaging and MET-PET. Planning target volume (PTV) encompassed the GTV-PET plus a 2-mm margin. SRT-IMRT was performed, keeping the dose for PTV at 25-35 Gy in 5 fractions. The ratio of the mean value of MET uptake to the contralateral normal brain (L/N ratio) was plotted for the PTV prior to SRT-IMRT, at 3 months following SRT-IMRT, and at 6 months following SRT-IMRT. Tumor characteristic changes of MET uptake before and after SRT-IMRT were evaluated quantitatively, comparing them with MRI examination. Results: Mean {+-} SD L/N ratios were 1.95 {+-} 0.83, 1.18 {+-} 0.21, and 1.12 {+-} 0.25 in the pre-SRT-IMRT group, in the 3 months post-SRT-IMRT group, and in the 6 months post-SRT-IMRT group, respectively. Differences in the mean L/N ratio between the pre-SRT-IMRT group and the 3-month post-SRT-IMRT group and between the pre-SRT-IMRT group and the 6 month post-SRT-IMRT group were statistically significant, irrespective of MRI examination. Conclusions: We showed examples of metastatic lesions demonstrating significant decreases in MET uptake following SRT-IMRT. MET-PET seems to have a potential role in providing additional information, although MRI remains the gold standard for diagnosis and follow-up after SRT-IMRT. The present study is a preliminary approach, but to more clearly define the impact of PET-based radiosurgical assessment, further experimental and clinical analyses are required.

Miwa, Kazuhiro, E-mail: doctor.3@jasmine.ocn.ne.jp [Chubu Medical Center for Prolonged Traumatic Brain Dysfunction, Kizawa Memorial Hospital, Minokamo, Gifu (Japan) [Chubu Medical Center for Prolonged Traumatic Brain Dysfunction, Kizawa Memorial Hospital, Minokamo, Gifu (Japan); Department of Clinical Brain Sciences, Gifu University Graduate School of Medicine, Minokamo, Gifu (Japan); Matsuo, Masayuki [Department of Radiation Oncology, Kizawa Memorial Hospital, Minokamo, Gifu (Japan)] [Department of Radiation Oncology, Kizawa Memorial Hospital, Minokamo, Gifu (Japan); Shinoda, Jun; Aki, Tatsuki; Yonezawa, Shingo [Chubu Medical Center for Prolonged Traumatic Brain Dysfunction, Kizawa Memorial Hospital, Minokamo, Gifu (Japan) [Chubu Medical Center for Prolonged Traumatic Brain Dysfunction, Kizawa Memorial Hospital, Minokamo, Gifu (Japan); Department of Clinical Brain Sciences, Gifu University Graduate School of Medicine, Minokamo, Gifu (Japan); Ito, Takeshi [Department of Neurosurgery, Kizawa Memorial Hospital, Minokamo, Gifu (Japan)] [Department of Neurosurgery, Kizawa Memorial Hospital, Minokamo, Gifu (Japan); Asano, Yoshitaka [Chubu Medical Center for Prolonged Traumatic Brain Dysfunction, Kizawa Memorial Hospital, Minokamo, Gifu (Japan) [Chubu Medical Center for Prolonged Traumatic Brain Dysfunction, Kizawa Memorial Hospital, Minokamo, Gifu (Japan); Department of Clinical Brain Sciences, Gifu University Graduate School of Medicine, Minokamo, Gifu (Japan); Yamada, Mikito; Yokoyama, Kazutoshi; Yamada, Jitsuhiro [Department of Neurosurgery, Kizawa Memorial Hospital, Minokamo, Gifu (Japan)] [Department of Neurosurgery, Kizawa Memorial Hospital, Minokamo, Gifu (Japan); Yano, Hirohito; Iwama, Toru [Department of Neurosurgery, Gifu University Graduate School of Medicine, Gifu (Japan)] [Department of Neurosurgery, Gifu University Graduate School of Medicine, Gifu (Japan)

2012-12-01T23:59:59.000Z

325

New k-phase materials, k-(ET) sub 2 Cu(N(CN) sub 2 )X: X = Cl, Br and I: The synthesis, structure and superconductivity above 11 K in the Cl ( Tc = 12. 8 K, 0. 3 kbar) and Br( Tc = 11. 6 K) salts  

SciTech Connect (OSTI)

The syntheses, structures, selected physical properties, and band electronic structures of three copper (I) dicyanamide halide salts of bis(ethylenedithio)tetrathiafulvalene ({kappa}-(ET){sub 2}Cu(N(CN){sub 2})X, where X = Cl, Br, and I) are discussed. X-ray crystallographic studies demonstrate that the three derivatives are isostructural. The bromide salt is an ambient pressure superconductor with an inductive onset at 11.6 K and a resistive onset at 12.5 K. {kappa}-(ET){sub 2}Cu(N(CN){sub 2})Cl exhibits the highest reported superconducting transition temperature ({Tc} = 12.8 K, 0.3 kbar) for an organic superconductor, once a semiconductor-semiconductor transition (42 K) is suppressed. The application of GE varnish or Apiezon N grease to crystals of {kappa}-(ET){sub 2}Cu(N(CN){sub 2})Cl provides sufficient stress to induce superconductivity at ambient pressure.'' Crystals of the iodide remain metallic to {approximately}150 K, where they become weakly semiconductive. No sign of superconductivity was detected at pressures (hydrostatic and shearing) up to 5.2 kbar and at temperatures as low as 1.1 K. The band electronic structures of the three salts are essentially identical. The differences in superconducting properties are explained in terms of differences in lattice softness, which are strongly influenced by short C-H{hor ellipsis}donor and C-H{hor ellipsis}anion contacts. 17 refs., 2 figs.

Wang, H.H.; Carlson, K.D.; Geiser, U.; Kini, A.M.; Schultz, A.J.; Williams, J.M.; Montgomery, L.K.; Kwok, W.K.; Welp, U.; Vandervoort, K.G.; Boryschuk, S.J.; Strieby Crouch, A.V.; Kommers, J.M.; Watkins, D.M. (Argonne National Lab., IL (USA)); Schirber, J.E.; Overmyer, D.L. (Sandia National Labs., Albuquerque, NM (USA)); Jung, D.; Novoa, J.J.; Whangbo, M.H. (North Carolina State Univ., Raleigh, NC (USA))

1990-01-01T23:59:59.000Z

326

N 9, quinta-feira, 12 de janeiro de 2012 17ISSN 1677-7042 Este documento pode ser verificado no endereo eletrnico http://www.in.gov.br/autenticidade.html,  

E-Print Network [OSTI]

: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES/MEC) Assunto: Aprecia a proposta de://portal.mec.gov.br/cne/). Brasília, 11 de janeiro de 2012. ATAÍDE ALVES Secretário Executivo COORDENA??O DE APERFEI?OAMENTO DE docentes. O Presidente da Coordenação de Aperfeiçoamento de Pes- soal de Nível Superior - Capes, no uso das

Floeter, Sergio Ricardo

327

{sup 18}Fluorodeoxyglucose PET Is Prognostic of Progression-Free and Overall Survival in Locally Advanced Pancreas Cancer Treated With Stereotactic Radiotherapy  

SciTech Connect (OSTI)

Purpose: This study analyzed the prognostic value of positron emission tomography (PET) for locally advanced pancreas cancer patients undergoing stereotactic body radiotherapy (SBRT). Patients and Methods: Fifty-five previously untreated, unresectable pancreas cancer patients received a single fraction of 25-Gy SBRT sequentially with gemcitabine-based chemotherapy. On the preradiation PET-CT, the tumor was contoured and the maximum standardized uptake value (SUVmax) and metabolic tumor burden (MTB) were calculated using an in-house software application. High-SUVmax and low-SUVmax subgroups were created by categorizing patients above or below the median SUVmax. The analysis was repeated to form high-MTB and low-MTB subgroups as well as clinically relevant subgroups with SUVmax values of <5, 5-10, or >10. Multivariate analysis analyzing SUVmax, MTB, age, chemotherapy cycles, and pretreatment carbohydrate antigen (CA)19-9 was performed. Results: For the entire population, median survival was 12.7 months. Median survival was 9.8 vs.15.3 months for the high- and low- SUVmax subgroups (p <0.01). Similarly, median survival was 10.1 vs. 18.0 months for the high MTB and low MTB subgroups (p <0.01). When clinical SUVmax cutoffs were used, median survival was 6.4 months in those with SUVmax >10, 9.5 months with SUVmax 5.0-10.0, and 17.7 months in those with SUVmax <5 (p <0.01). On multivariate analysis, clinical SUVmax was an independent predictor for overall survival (p = 0.03) and progression-free survival (p = 0.03). Conclusion: PET scan parameters can predict for length of survival in locally advanced pancreas cancer patients.

Schellenberg, Devin [Department of Radiation Oncology at Fraser Valley Cancer Centre, Surrey (Canada); Quon, Andy [Division of Nuclear Medicine, Stanford University, Palo Alto, CA (United States); Minn, A. Yuriko; Graves, Edward E. [Department of Radiation Oncology, Stanford University, Palo Alto, CA (United States); Kunz, Pamela; Ford, James M.; Fisher, George A. [Department of Medical Oncology, Stanford University, Palo Alto, CA (United States); Goodman, Karyn A. [Department of Radiation Oncology at Memorial-Sloan Kettering Cancer Center, New York, NY (United States); Koong, Albert C. [Department of Radiation Oncology, Stanford University, Palo Alto, CA (United States); Chang, Daniel T., E-mail: dtchang@stanford.ed [Department of Radiation Oncology, Stanford University, Palo Alto, CA (United States)

2010-08-01T23:59:59.000Z

328

Repeatability of quantitative FDG-PET/CT and contrast enhanced CT in recurrent ovarian carcinoma: test retest measurements for tumor FDG uptake, diameter and volume  

E-Print Network [OSTI]

. Corresponding author: Andrea G. Rockall, MRCP, FRCR, Division of Cancer and Surgery, Imperial College London, First Floor, ICTEM Building, Hammersmith Campus, Du Cane Road, London, W12 ONN, UK. Phone: +44 (0) 207 594 2793, Fax: +44 (0) 208 383 5830 Email: a... of lymphomas. Diagn Interv Imaging 2013. (15) Hoekstra CJ, Hoekstra OS, Stroobants SG, Vansteenkiste J, Nuyts J, Smit EF et al. Methods to monitor response to chemotherapy in non-small cell lung cancer with 18F- FDG PET. J Nucl Med 2002; 43...

Rockall, Andrea G.; Avril, Norbert; Lam, Raymond; Iannone, Robert; Mozley, P. David; Parkinson, Christine; Bergstrom, Donald; Sala, Evis; Sarker, Shah-Jalal; McNeish, Iain A.; Brenton, James D.

2014-02-26T23:59:59.000Z

329

Analysis of Pretreatment FDG-PET SUV Parameters in Head-and-Neck Cancer: Tumor SUV{sub mean} Has Superior Prognostic Value  

SciTech Connect (OSTI)

Purpose: To evaluate the prognostic significance of different descriptive parameters in head-and-neck cancer patients undergoing pretreatment [F-18] fluoro-D-glucose-positron emission tomography (FDG-PET) imaging. Patients and Methods: Head-and-neck cancer patients who underwent FDG-PET before a course of curative intent radiotherapy were retrospectively analyzed. FDG-PET imaging parameters included maximum (SUV{sub max}), and mean (SUV{sub mean}) standard uptake values, and total lesion glycolysis (TLG). Tumors and lymph nodes were defined on co-registered axial computed tomography (CT) slices. SUV{sub max} and SUV{sub mean} were measured within these anatomic regions. The relationships between pretreatment SUV{sub max}, SUV{sub mean}, and TLG for the primary site and lymph nodes were assessed using a univariate analysis for disease-free survival (DFS), locoregional control (LRC), and distant metastasis-free survival (DMFS). Kaplan-Meier survival curves were generated and compared via the log-rank method. SUV data were analyzed as continuous variables. Results: A total of 88 patients was assessed. Two-year OS, LRC, DMFS, and DFS for the entire cohort were 85%, 78%, 81%, and 70%, respectively. Median SUV{sub max} for the primary tumor and lymph nodes was 15.4 and 12.2, respectively. Median SUV{sub mean} for the primary tumor and lymph nodes was 7 and 5.2, respectively. Median TLG was 770. Increasing pretreatment SUV{sub mean} of the primary tumor was associated with decreased disease-free survival (p = 0.01). Neither SUV{sub max} in the primary tumor or lymph nodes nor TLG was prognostic for any of the clinical endpoints. Patients with pretreatment tumor SUV{sub mean} that exceeded the median value (7) of the cohort demonstrated inferior 2-year DFS relative to patients with SUV{sub mean} {<=} the median value of the cohort, 58% vs. 82%, respectively, p = 0.03. Conclusion: Increasing SUV{sub mean} in the primary tumor was associated with inferior DFS. Although not routinely reported, pretreatment SUV{sub mean} may be a useful prognostic FDG-PET parameter and should be further evaluated prospectively.

Higgins, Kristin A., E-mail: kristin.higgins@duke.edu [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States); Hoang, Jenny K. [Department of Radiology, Division of Neuroradiology, Duke University Medical Center, Durham, NC (United States); Roach, Michael C.; Chino, Junzo; Yoo, David S. [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States); Turkington, Timothy G. [Department of Radiology, Division of Nuclear Medicine, Duke University Medical Center, Durham, NC (United States); Department of Biomedical Engineering, Duke University Medical Center, Durham, NC (United States); Graduate Program in Medical Physics, Duke University Medical Center, Durham, NC (United States); Brizel, David M. [Department of Radiation Oncology, Duke University Medical Center, Durham, NC (United States); Department of Surgery, Division of Head and Neck Surgery, Duke University Medical Center, Durham, NC (United States)

2012-02-01T23:59:59.000Z

330

*** Prices are subject to change. Please contact properties directly to confirm latest prices. Updated: 2/8/2013 1 BR 2 BR 2 BR 2 BR 3 BR 3 BR 4 BR  

E-Print Network [OSTI]

-8981 12 months $555 $665 9 months Hunter's Point 12 months $575 $650-$730 9 months Lincoln Townhomes (979

Behmer, Spencer T.

331

Solid-state synthesis, structure and properties of a novel open-framework cadmium selenite bromide: [Cd{sub 10}(SeO{sub 3}){sub 8}Br{sub 4}]HBrH{sub 2}O  

SciTech Connect (OSTI)

A novel open-framework cadmium selenite bromide, [Cd{sub 10}(SeO{sub 3}){sub 8}Br{sub 4}]HBrH{sub 2}O (1), has been obtained by a solid-state reaction at 450 C, and the structure has been determined by single-crystal X-ray diffraction analysis. Compound 1 crystallizes in Pbcm of the orthorhombic system: a=10.882(3), b=16.275(5), c=18.728(6) , V=3317(2) {sup 3}, R1/wR2=0.0411/0.0659. Compound 1 is characteristic of a novel 3-D open-framework structure, composing {sub ?}{sup 2}[CdSeO{sub 3}] layers and the pillars of edge-shared CdO{sub 3}Br{sub 2} square pyramids. The lattice water molecules and the HBr molecules locate in the voids of the framework. Optical absorption spectrum of 1 reveals the presence of an optical gap of 1.65 eV. Solid-state photoluminescent study indicates that compound 1 exhibits strong violet emission. TGDSC measurement shows that compound 1 is thermally stable up to 200 C. - Graphical abstract: A metal selenite halide has been synthesized and features a 3-D open-framework structure, composing edge-shared CdO{sub 8} decahedra and pillars of edge-sharing pentahedra. UVvis, TGDSC and luminescent measurements are also reported. Highlights: This paper reports a novel cadmium selenite bromide obtained by an intermediate-temperature solid-state reaction. The title compound is characteristic of a novel 3-D open-framework structure, composing {sub ?}{sup 2}[CdSeO{sub 3}] layers and the pillars of edge-shared CdO{sub 3}Br{sub 2} square pyramids. The title compound is thermally stable up to 200 C. The title compound has an optical gap of 1.65 eV and exhibits strong violet emission.

Chen, Wen-Tong [State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China); School of Chemistry and Chemical Engineering, Institute of Applied Chemistry, JingGangShan University, 343009 Ji'an, JiangXi (China); Wang, Ming-Sheng; Wang, Guan-E; Chen, Hui-Fen [State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China); Guo, Guo-Cong, E-mail: gcguo@ms.fjirsm.ac.cn [State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China)

2013-08-15T23:59:59.000Z

332

{sup 18}F-FLT uptake kinetics in head and neck squamous cell carcinoma: A PET imaging study  

SciTech Connect (OSTI)

Purpose: To analyze the kinetics of 3{sup ?}-deoxy-3{sup ?}-[F-18]-fluorothymidine (18F-FLT) uptake by head and neck squamous cell carcinomas and involved nodes imaged using positron emission tomography (PET). Methods: Two- and three-tissue compartment models were fitted to 12 tumor time-activity-curves (TACs) obtained for 6 structures (tumors or involved nodes) imaged in ten dynamic PET studies of 1 h duration, carried out for five patients. The ability of the models to describe the data was assessed using a runs test, the Akaike information criterion (AIC) and leave-one-out cross-validation. To generate parametric maps the models were also fitted to TACs of individual voxels. Correlations between maps of different parameters were characterized using Pearson'sr coefficient; in particular the phosphorylation rate-constants k{sub 3-2tiss} and k{sub 5} of the two- and three-tissue models were studied alongside the flux parameters K{sub FLT-2tiss} and K{sub FLT} of these models, and standardized uptake values (SUV). A methodology based on expectation-maximization clustering and the Bayesian information criterion (EM-BIC clustering) was used to distil the information from noisy parametric images. Results: Fits of two-tissue models 2C3K and 2C4K and three-tissue models 3C5K and 3C6K comprising three, four, five, and six rate-constants, respectively, pass the runs test for 4, 8, 10, and 11 of 12 tumor TACs. The three-tissue models have lower AIC and cross-validation scores for nine of the 12 tumors. Overall the 3C6K model has the lowest AIC and cross-validation scores and its fitted parameter values are of the same orders of magnitude as literature estimates. Maps ofK{sub FLT} and K{sub FLT-2tiss} are strongly correlated (r = 0.85) and also correlate closely with SUV maps (r = 0.72 for K{sub FLT-2tiss}, 0.64 for K{sub FLT}). Phosphorylation rate-constant maps are moderately correlated with flux maps (r = 0.48 for k{sub 3-2tiss} vs K{sub FLT-2tiss} and r = 0.68 for k{sub 5} vs K{sub FLT}); however, neither phosphorylation rate-constant correlates significantly with SUV. EM-BIC clustering reduces the parametric maps to a small number of levelson average 5.8, 3.5, 3.4, and 1.4 for K{sub FLT-2tiss}, K{sub FLT}, k{sub 3-2tiss}, and k{sub 5.} This large simplification is potentially useful for radiotherapy dose-painting, but demonstrates the high noise in some maps. Statistical simulations show that voxel level noise degrades TACs generated from the 3C6K model sufficiently that the average AIC score, parameter bias, and total uncertainty of 2C4K model fits are similar to those of 3C6K fits, whereas at the whole tumor level the scores are lower for 3C6K fits. Conclusions: For the patients studied here, whole tumor FLT uptake time-courses are represented better overall by a three-tissue than by a two-tissue model. EM-BIC clustering simplifies noisy parametric maps, providing the best description of the underlying information they contain and is potentially useful for radiotherapy dose-painting. However, the clustering highlights the large degree of noise present in maps of the phosphorylation rate-constantsk{sub 5} and k{sub 3-2tiss}, which are conceptually tightly linked to cellular proliferation. Methods must be found to make these maps more robusteither by constraining other model parameters or modifying dynamic imaging protocols.

Liu, Dan, E-mail: dan.liu@oncology.ox.ac.uk; Fenwick, John D. [Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford OX3 7DQ (United Kingdom)] [Department of Oncology, University of Oxford, Old Road Campus Research Building, Roosevelt Drive, Oxford OX3 7DQ (United Kingdom); Chalkidou, Anastasia; Landau, David B.; Marsden, Paul K. [Division of Imaging Sciences and Biomedical Engineering, School of Medicine, King's College London, St Thomas' Hospital, Westminster Bridge Road, London SE1 7EH (United Kingdom)] [Division of Imaging Sciences and Biomedical Engineering, School of Medicine, King's College London, St Thomas' Hospital, Westminster Bridge Road, London SE1 7EH (United Kingdom)

2014-04-15T23:59:59.000Z

333

Positron emission tomography study on pancreatic somatostatin receptors in normal and diabetic rats with {sup 68}Ga-DOTA-octreotide: A potential PET tracer for beta cell mass measurement  

SciTech Connect (OSTI)

Highlights: PET images showed high uptake of {sup 68}Ga-DOTA-octreotide in the normal pancreas. {sup 68}Ga-DOTA-octreotide specifically binds to somatostatin receptors in the pancreas. The pancreatic uptake of {sup 68}Ga-DOTA-octreotide was decreased in the diabetic rats. {sup 68}Ga-DOTA-octreotide could be a candidate PET probe to measure the beta cell mass. -- Abstract: Diabetes mellitus (DM) is a metabolic disorder characterized by hyperglycemia, and the loss or dysfunction of pancreatic beta cells has been reported before the appearance of clinical symptoms and hyperglycemia. To evaluate beta cell mass (BCM) for improving the detection and treatment of DM at earlier stages, we focused on somatostatin receptors that are highly expressed in the pancreatic beta cells, and developed a positron emission tomography (PET) probe derived from octreotide, a metabolically stable somatostatin analog. Octreotide was conjugated with 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA), a chelating agent, and labeled with {sup 68}Gallium ({sup 68}Ga). After intravenous injection of {sup 68}Ga-DOTA-octreotide, a 90-min emission scan of the abdomen was performed in normal and DM model rats. The PET studies showed that {sup 68}Ga-DOTA-octreotide radioactivity was highly accumulated in the pancreas of normal rats and that the pancreatic accumulation was significantly reduced in the rats administered with an excess amount of unlabeled octreotide or after treatment with streptozotocin, which was used for the chemical induction of DM in rats. These results were in good agreement with the ex vivo biodistribution data. These results indicated that the pancreatic accumulation of {sup 68}Ga-DOTA-octreotide represented specific binding to the somatostatin receptors and reflected BCM. Therefore, PET imaging with {sup 68}Ga-DOTA-octreotide could be a potential tool for evaluating BCM.

Sako, Takeo [Division of Bio-function Dynamics Imaging, RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047 (Japan) [Division of Bio-function Dynamics Imaging, RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047 (Japan); Division of Molecular Imaging, Institute of Biomedical Research and Innovation, 2-2 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047 (Japan); Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017 (Japan); Hasegawa, Koki; Nishimura, Mie; Kanayama, Yousuke; Wada, Yasuhiro; Hayashinaka, Emi; Cui, Yilong; Kataoka, Yosky [Division of Bio-function Dynamics Imaging, RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047 (Japan)] [Division of Bio-function Dynamics Imaging, RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047 (Japan); Senda, Michio [Division of Bio-function Dynamics Imaging, RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047 (Japan) [Division of Bio-function Dynamics Imaging, RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047 (Japan); Division of Molecular Imaging, Institute of Biomedical Research and Innovation, 2-2 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047 (Japan); Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017 (Japan); Watanabe, Yasuyoshi, E-mail: yywata@riken.jp [Division of Bio-function Dynamics Imaging, RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047 (Japan)] [Division of Bio-function Dynamics Imaging, RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047 (Japan)

2013-12-06T23:59:59.000Z

334

Experimental and ab initio studies of the reactive processes in gas phase i-C{sub 3}H{sub 7}Br and i-C{sub 3}H{sub 7}OH collisions with potassium ions  

SciTech Connect (OSTI)

Collisions between potassium ions and neutral i-C{sub 3}H{sub 7}Br and i-C{sub 3}H{sub 7}OH, all in their electronic ground state, have been studied in the 0.1010.00 eV center of mass (CM) collision energy range, using the radiofrequency-guided ion beam technique. In K{sup +} + i-C{sub 3}H{sub 7}Br collisions KHBr{sup +} formation was observed and quantified, while the analogous KH{sub 2}O{sup +} formation in K{sup +} + i-C{sub 3}H{sub 7}OH was hardly detected. Moreover, formation of the ion-molecule adducts and their decomposition leading to C{sub 3}H{sub 7}{sup +} and either KBr or KOH, respectively, have been observed. For all these processes, absolute cross-sections were measured as a function of the CM collision energy. Ab initio structure calculations at the MP2 level have given information about the potential energy surfaces (PESs) involved. In these, different stationary points have been characterized using the reaction coordinate method, their connectivity being ensured by using the intrinsic-reaction-coordinate method. From the measured excitation function for KHBr{sup +} formation the corresponding thermal rate constant at 303 K has been calculated. The topology of the calculated PESs allows an interpretation of the main features of the reaction dynamics of both systems, and in particular evidence the important role played by the potential energy wells in controlling the reactivity for the different reaction channels.

Lpez, E.; Lucas, J. M.; Andrs, J. de; Albert, M.; Aguilar, A., E-mail: a.aguilar@ub.edu [Departament de Qumica Fsica, Institut de Qumica Terica i Computacional (IQTCUB), Universitat de Barcelona, Mart i Franqus, 1, 08028 Barcelona (Spain); Bofill, J. M. [Departament de Qumica Orgnica, Institut de Qumica Terica i Computacional (IQTCUB), Universitat de Barcelona, Mart i Franqus, 1, 08028 Barcelona (Spain); Bassi, D. [Dipartimento di Fisica, Universit degli Studi di Trento, 38123 Povo-Trento (Italy)

2014-10-28T23:59:59.000Z

335

magazine of the gerald j. and dorothy r. friedman school of nutrition science and policy SUMMER 2011 VOL. 12 NO. 2 PLUS: GENES AND DIET n INNOVATIONS IN AFRICA n FEEDING YOUR PET  

E-Print Network [OSTI]

SUMMER 2011 VOL. 12 NO. 2 PLUS: GENES AND DIET n INNOVATIONS IN AFRICA n FEEDING YOUR PET Power PlayGOING ALL OUT TO SAVE MUSCLE #12;Tufts Prints Green Printed on 25% post-consumer waste recycled paper. Please recycle. 2 tufts nutrition s u m m e r 2 011 vo l u m e 1 2 n o. 2 s u m m e r 2 0 1 1 editor

Dennett, Daniel

336

Radiative rates for E1, E2, M1, and M2 transitions in the Br-like ions Sr IV, Y V, Zr VI, Nb VII, and Mo VIII  

E-Print Network [OSTI]

Energies and lifetimes are reported for the lowest 375 levels of five Br-like ions, namely Sr~IV, Y~V, Zr~VI, Nb~VII, and Mo~VIII, mostly belonging to the 4s$^2$4p$^5$, 4s$^2$4p$^4$4$\\ell$, 4s4p$^6$, 4s$^2$4p$^4$5$\\ell$, 4s$^2$4p$^3$4d$^2$, 4s4p$^5$4$\\ell$, and 4s4p$^5$5$\\ell$ configurations. Extensive configuration interaction has been included and the general-purpose relativistic atomic structure package ({\\sc grasp}) has been adopted for the calculations. Additionally, radiative rates are listed among these levels for all E1, E2, M1, and M2 transitions. From a comparison with the measurements, the majority of our energy levels are assessed to be accurate to better than 2\\%, although discrepancies between theory and experiment for a few are up to 6\\%. An accuracy assessment of the calculated radiative rates (and lifetimes) is more difficult, because no prior results exist for these ions.

Aggarwal, K M

2015-01-01T23:59:59.000Z

337

Use of InSpector{sup TM} 1 1000 Instrument with LaBr{sub 3} for Nuclear Criticality Safety (NCS) Applications at the Westinghouse Hematite Decommissioning Project (HDP) - 13132  

SciTech Connect (OSTI)

The Westinghouse Hematite Decommissioning Project (HDP) is a former nuclear fuel cycle facility that is currently undergoing decommissioning. One aspect of the decommissioning scope is remediation of buried nuclear waste in unlined burial pits. The current Nuclear Criticality Safety program relies on application of criticality controls based on radiological setpoints from a 2 x 2 Sodium Iodide (NaI) detector. Because of the nature of the material buried (Low Enriched Uranium (LEU), depleted uranium, thorium, and radium) and the stringent threshold for application of criticality controls based on waste management (0.1 g {sup 235}U/L), a better method for {sup 235}U identification and quantification has been developed. This paper outlines the early stages of a quick, in-field nuclear material assay and {sup 235}U mass estimation process currently being deployed at HDP. Nuclear material initially classified such that NCS controls are necessary can be demonstrated not to require such controls and dispositioned as desired by project operations. Using Monte Carlo techniques and a high resolution Lanthanum Bromide (LaBr) detector with portable Multi-Channel Analyzer (MCA), a bounding {sup 235}U mass is assigned to basic geometries of nuclear material as it is excavated. The deployment of these methods and techniques has saved large amounts of time and money in the nuclear material remediation process. (authors)

Pritchard, Megan [Nuclear Safety Associates, P.O. Box 471488, Charlotte, NC 28247 (United States)] [Nuclear Safety Associates, P.O. Box 471488, Charlotte, NC 28247 (United States); Guido, Joe [System One Services, 12 Federal St. Ste. 205, Pittsburgh, PA 15212 (United States)] [System One Services, 12 Federal St. Ste. 205, Pittsburgh, PA 15212 (United States)

2013-07-01T23:59:59.000Z

338

Tumor Metabolism and Perfusion in Head and Neck Squamous Cell Carcinoma: Pretreatment Multimodality Imaging With {sup 1}H Magnetic Resonance Spectroscopy, Dynamic Contrast-Enhanced MRI, and [{sup 18}F]FDG-PET  

SciTech Connect (OSTI)

Purpose: To correlate proton magnetic resonance spectroscopy ({sup 1}H-MRS), dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), and {sup 18}F-labeled fluorodeoxyglucose positron emission tomography ([{sup 18}F]FDG PET) of nodal metastases in patients with head and neck squamous cell carcinoma (HNSCC) for assessment of tumor biology. Additionally, pretreatment multimodality imaging was evaluated for its efficacy in predicting short-term response to treatment. Methods and Materials: Metastatic neck nodes were imaged with {sup 1}H-MRS, DCE-MRI, and [{sup 18}F]FDG PET in 16 patients with newly diagnosed HNSCC, before treatment. Short-term patient radiological response was evaluated at 3 to 4 months. Correlations among {sup 1}H-MRS (choline concentration relative to water [Cho/W]), DCE-MRI (volume transfer constant [K{sup trans}]; volume fraction of the extravascular extracellular space [v{sub e}]; and redistribution rate constant [k{sub ep}]), and [{sup 18}F]FDG PET (standard uptake value [SUV] and total lesion glycolysis [TLG]) were calculated using nonparametric Spearman rank correlation. To predict short-term responses, logistic regression analysis was performed. Results: A significant positive correlation was found between Cho/W and TLG ({rho} = 0.599; p = 0.031). Cho/W correlated negatively with heterogeneity measures of standard deviation std(v{sub e}) ({rho} = -0.691; p = 0.004) and std(k{sub ep}) ({rho} = -0.704; p = 0.003). Maximum SUV (SUVmax) values correlated strongly with MRI tumor volume ({rho} = 0.643; p = 0.007). Logistic regression indicated that std(K{sup trans}) and SUVmean were significant predictors of short-term response (p < 0.07). Conclusion: Pretreatment multimodality imaging using {sup 1}H-MRS, DCE-MRI, and [{sup 18}F]FDG PET is feasible in HNSCC patients with nodal metastases. Additionally, combined DCE-MRI and [{sup 18}F]FDG PET parameters were predictive of short-term response to treatment.

Jansen, Jacobus F.A. [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Department of Radiology, Maastricht University Medical Center, Maastricht (Netherlands); Schoeder, Heiko [Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Lee, Nancy Y. [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Stambuk, Hilda E. [Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Wang Ya [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Fury, Matthew G. [Department of Medical Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Patel, Senehal G. [Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Pfister, David G. [Department of Medical Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Shah, Jatin P. [Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Koutcher, Jason A. [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Department of Medical Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Shukla-Dave, Amita, E-mail: davea@mskcc.org [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Department of Radiology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)

2012-01-01T23:59:59.000Z

339

MSIAPE NOME COMPLETO CARGO CLASSE TITUL LOTAO REG. TIPO JORN. ADM. NOM. PUBL. CPF** EMAIL*** 344029 ADEMIR ALVES RIBEIRO PROF 3 GRAU ADJUNTO DOUTORADO ET/DMAT RJU AT. PERM. DE 11/02/1992 PORT. 3871 31/01/92 ***.265.839-** ademir.ribeiro@ufpr.br  

E-Print Network [OSTI]

*** 344029 ADEMIR ALVES RIBEIRO PROF 3 GRAU ADJUNTO DOUTORADO ET/DMAT RJU AT. PERM. DE 11/02/1992 PORT. 3871 MESTRADO ET/DEST RJU AT. PERM. DE 04/08/1998 PORT. 570 13/07/98 ***.392.359-** aanjos@ufpr.br 342855 ADONAI SCHLUP SANTANNA PROF 3 GRAU ASSOCIADO DOUTORADO ET/DMAT RJU AT. PERM. DE 11/01/1990 PORT. 4156 28

Paraná, Universidade Federal do

340

Measurement of sigma(ppbar->Z) Br(Z->tau+tau-) and search for Higgs bosons decaying to tau+tau- at s**(1/2) = 1.96 TeV  

SciTech Connect (OSTI)

The resonant production of tau-lepton pairs is as interesting for the study of Standard Model (SM) physics as the production of lighter leptons pairs. For new phenomena, such as Higgs boson production or in case new particles beyond the SM would arise, the detection of (resonant) pairs of tau leptons becomes much more interesting. This is due to the fact that tau leptons are much heavier than the other leptons, which increases the chance that these new phenomena would be observed first in this channel. Unfortunately their clean detection is far more difficult than that of muons or electrons. The cross section times branching ratio {sigma}{center_dot} Br for the process p{bar p} {yields} Z {yields} {tau}{sup +}{tau}{sup -} was measured at {radical}s = 1.96 GeV using 1.0 fb{sup -1} of data collected by the D0 experiment. This measurement was performed in the channel in which one of the tau leptons decays to a muon and neutrinos, while the other decays either hadronically or to an electron and neutrinos. A set of 1511 events, of which about 20% estimated background, passed all selection criteria. The trigger and muon reconstruction efficiencies, as well as the efficiency for track reconstruction were obtained from data using the 'tag and probe' method on Z {yields} {mu}{sup +}{mu}{sup -} events. The multijet background was estimated from the sample of events which passed all selection criteria but in which the muon and the tau candidate had the same charge. The W {yields} {mu}{nu} + jets background was modeled by Monte Carlo simulations, but normalized to data. All the other backgrounds, as well as the efficiency for Z {yields} {tau}{sup +}{tau}{sup -} events were estimated using simulated events normalized to the theoretical calculations of cross sections at next-to-leading order or next-to-next-to-leading order. The energy of the tau candidates was corrected for the estimated response of the charged pions in the calorimeter, which is of the order 50-80%. Since the charged pion response in data was not well reproduced by the default simulation of hadronic interactions (Geisha), a different simulation (gCALOR) was used to obtain an estimated charged pion response consistent with the one measured in data. This tau energy correction method makes use of the superior resolution of the track momentum measurement compared to the resolution of the tau candidate energy as measured by the calorimeter, which leads to a better data--simulation agreement and a decrease of 10% in the resolution of the visible mass peak. The result of this measurement is {sigma}(p{bar p} {yields} Z) {center_dot} Br(Z {yields} {tau}{sup +}{tau}{sup -}) = 240 {+-} 8(stat) {+-} 12(syst) {+-} 15(lumi) pb, in good agreement with the theoretical predictions of 241.6{sub -3.2}{sup +3.6} pb [79] or 251.9{sub -12}{sup +5.1} pb [93-95], as well as with other measurements performed by the D0 and CDF experiments in all channels in which the Z boson decays leptonically [96-100]. This is the most precise Z boson cross section measurement to date performed in the tau lepton channel at hadron colliders. The analysis demonstrates the ability of the D0 experiment to identify tau leptons decaying hadronically with good efficiency and high purity, a challenging task in p{bar p} collisions where the number of jets resembling tau leptons is very high. This achievement forms a solid basis for other analyses using hadronic tau lepton decays, such as the search for the Higgs boson decaying into tau-lepton pairs, which was performed for the last part of this thesis.

Galea, Cristina Florina; /Nijmegen U.

2008-01-01T23:59:59.000Z

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


341

(Development of Br-77 from LAMPF Facility)  

SciTech Connect (OSTI)

The research goals of 1984--1985 included continued studies of the 1-halogenated estradiol derivatives and preparation of B- and C- ring vinyl halides of estradiol. The radiohalogenated analogs of these target compounds are proposed to be useful as receptor-binding radiopharmaceuticals in breast cancer therapy. To date, all 1-halogenated derivatives have been prepared and studied. Their 17 {proportional to}-ethynyl derivatives have also been prepared. In vitro receptor-binding studies with estrogen receptors show definite trends with respect to type of halogen attached versus observed receptor-binding affinity. These results were further substantiated using x-ray crystallographic methods. The proposed B- and C- ring vinyl halides have not been successfully synthesized; however, work toward these target compounds is still underway. Other related compounds of current interest include the B-, C-, and D- ring substituted estradiol derivatives. Much of the synthetic work leaking to these compounds has been accomplished and in vitro studies will be performed soon. 10 refs.

Not Available

1985-01-01T23:59:59.000Z

342

JOB DESCRIPTION Requisition ID 3165BR  

E-Print Network [OSTI]

is seeking a qualified individual to design game-infused experience in our Center for Games and Impact of technology to enhance instruction and create new game-infused learning environments. · Coordinates production of instructional concepts, required media, tutorials, assignments, and consideration of modality within our game-infused

343

Au Australia 307 Br Brasil 307  

E-Print Network [OSTI]

307 Ch China, Republic of D ChT China, Taiwan D Cs Czecho Slovakia 307 Fr France 307 Ge Germany (Reich)1945 E Ge.W Germany, Federal Republic of 307 Germany(Reich=1945 E Ge.E Germany, Democratic Republic of 307 Germany(Reich=1945 E Hu Hungry 307 It Italy 307 Ju Jugoslavia 307 Ko Korea 307 Ko

Miyashita, Yasushi

344

A novel method for the line-of-response and time-of-flight reconstruction in TOF-PET detectors based on a library of synchronized model signals  

E-Print Network [OSTI]

A novel method of hit time and hit position reconstruction in scintillator detectors is described. The method is based on comparison of detector signals with results stored in a library of synchronized model signals registered for a set of well-defined positions of scintillation points. The hit position is reconstructed as the one corresponding to the signal from the library which is most similar to the measurement signal. The time of the interaction is determined as a relative time between the measured signal and the most similar one in the library. A degree of similarity of measured and model signals is defined as the distance between points representing the measurement- and model-signal in the multi-dimensional measurement space. Novelty of the method lies also in the proposed way of synchronization of model signals enabling direct determination of the difference between time-of-flights (TOF) of annihilation quanta from the annihilation point to the detectors. The introduced method was validated using experimental data obtained by means of the double strip prototype of the J-PET detector and $^{22}$Na sodium isotope as a source of annihilation gamma quanta.The detector was built out from plastic scintillator strips with dimensions of 5 mm x 19 mm x 300 mm, optically connected at both sides to photomultipliers,from which signals were sampled by means of the Serial Data Analyzer.Using the introduced method, the spatial and TOF resolution of about 1.3 cm ($\\sigma$) and 125 ps ($\\sigma$) were established, respectively.

P. Moskal; N. Zo?; T. Bednarski; P. Bia?as; E. Czerwi?ski; A. Gajos; D. Kami?ska; ?. Kap?on; A. Kochanowski; G. Korcyl; J. Kowal; P. Kowalski; T. Kozik; W. Krzemie?; E. Kubicz; Sz. Nied?wiecki; M. Pa?ka; L. Raczy?ski; Z. Rudy; O. Rundel; P. Salabura; N. G. Sharma; M. Silarski; A. S?omski; J. Smyrski; A. Strzelecki; A. Wieczorek; W. Wi?licki; M. Zieli?ski

2015-02-10T23:59:59.000Z

345

Method for selective recovery of PET-usable quantities of [.sup.18 F] fluoride and [.sup.13 N] nitrate/nitrite from a single irradiation of low-enriched [.sup.18 O] water  

DOE Patents [OSTI]

A process for simultaneously producing PET-usable quantities of [.sup.13 N]NH.sub.3 and [.sup.18 F]F.sup.- for radiotracer synthesis is disclosed. The process includes producing [.sup.13 N]NO.sub.2.sup.- /NO.sub.3.sup.- and [.sup.18 F]F.sup.- simultaneously by exposing a low-enriched (20%-30%) [.sup.18 O]H.sub.2 O target to proton irradiation, sequentially isolating the [.sup.13 N]NO.sub.2.sup.- /NO.sub.3.sup.- and [.sup.18 F]F.sup.- from the [.sup.18 O]H.sub.2 O target, and reducing the [.sup.13 N]NO.sub.2.sup.- /NO.sub.3.sup.- to [.sup.13 N]NH.sub.3. The [.sup.13 N]NH.sub.3 and [.sup.18 F]F.sup.- products are then conveyed to a laboratory for radiotracer applications. The process employs an anion exchange resin for isolation of the isotopes from the [.sup.18 O]H.sub.2 O, and sequential elution of [.sup.13 N]NO.sub.2.sup.- /NO.sub.3.sup.- and [ .sup.18 F]F.sup.- fractions. Also the apparatus is disclosed for simultaneously producing PET-usable quantities of [.sup.13 N]NH.sub.3 and [.sup.18 F]F.sup.- from a single irradiation of a single low-enriched [.sup.18 O]H.sub.2 O target.

Ferrieri, Richard A. (Patchogue, NY); Schlyer, David J. (Bellport, NY); Shea, Colleen (Wading River, NY)

1995-06-13T23:59:59.000Z

346

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

SciTech Connect (OSTI)

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.

McKinsey, Daniel Nicholas [Yale University] [Yale University

2013-08-27T23:59:59.000Z

347

C6H5Br+ f C6H5 + + Br Occurs via Orbiting Transition State  

E-Print Network [OSTI]

-analyzed ion kinetic energy spectrometry. The rate constant and kinetic energy release distribution have been at high internal energy. The completely loose transition state model, namely the reaction occurring via compared with theoretical calculations. The rate-energy data available over 6 orders of magnitude in time

Kim, Myung Soo

348

BR UFF BIG PINEY WILD ROSE BLU E GAP BR UFF UNIT WAMSUT TER  

Gasoline and Diesel Fuel Update (EIA)

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"Click worksheet9,1,50022,3,,,,6,1,,781Title: Telephone:shortOil and Natural8U.S.NALiquidsBOE Reserve

349

BR UFF BIG PINEY WILD ROSE BLU E GAP BR UFF UNIT WAMSUT TER  

Gasoline and Diesel Fuel Update (EIA)

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"Click worksheet9,1,50022,3,,,,6,1,,781Title: Telephone:shortOil and Natural8U.S.NALiquidsBOE ReserveGas

350

BR UFF BIG PINEY WILD ROSE BLU E GAP BR UFF UNIT WAMSUT TER  

Gasoline and Diesel Fuel Update (EIA)

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"Click worksheet9,1,50022,3,,,,6,1,,781Title: Telephone:shortOil and Natural8U.S.NALiquidsBOE

351

Hanford Speakers Bureau<br><br>Frequently Asked Questions - Hanford Site  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Region service area. TheEPSCIResearchGulf ofnewsFlashSpeakers Bureau >

352

Mechanisms of Photodesorption of Br Atoms from CsBr Surfaces. | EMSL  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces andMapping the NanoscaleMechanical Behavior ofAPS ... SearchMechanisms of

353

Laurea Honoris Causa PRESENTAZIONE DI  

E-Print Network [OSTI]

anche a Parigi, Barcellona e Londra. Non ha mai rinnegato le proprie radici peruviane, come testimoniano

Sproston, Jeremy

354

Method for selective recovery of PET-usable quantities of [{sup 18}F] fluoride and [{sup 13}N] nitrate/nitrite from a single irradiation of low-enriched [{sup 18}O] water  

DOE Patents [OSTI]

A process for simultaneously producing PET-usable quantities of [{sup 13}N]NH{sub 3} and [{sup 18}F]F{sup {minus}} for radiotracer synthesis is disclosed. The process includes producing [{sup 13}N]NO{sub 2}{sup {minus}}/NO{sub 3}{sup {minus}}and [{sup 18}F]F{sup {minus}} simultaneously by exposing a low-enriched (20%-30%) [{sup 18}O]H{sub 2}O target to proton irradiation, sequentially isolating the [{sup 13}N]NO{sub 2}{sup {minus}}/NO{sub 3}{sup {minus}} and [{sup 18}F]F{sup {minus}} from the [{sup 18}O]H{sub 2}O target, and reducing the [{sup 13}N]NO{sub 2}{sup {minus}}/NO{sub 3}{sup {minus}} to [{sup 13}N]NH{sub 3}. The [{sup 13}N]NH{sub 3} and [{sup 18}F]F{sup {minus}} products are then conveyed to a laboratory for radiotracer applications. The process employs an anion exchange resin for isolation of the isotopes from the [{sup 18}O]H{sub 2}O, and sequential elution of [{sup 13}N]NO{sub 2}{sup {minus}}/NO{sub 3}{sup {minus}} and [{sup 18}F]F{sup {minus}} fractions. Also the apparatus is disclosed for simultaneously producing PET-usable quantities of [{sup 13}N]NH{sub 3} and [{sup 18}F]F{sup {minus}} from a single irradiation of a single low-enriched [{sup 18}O]H{sub 2}O target. 2 figs.

Ferrieri, R.A.; Schlyer, D.J.; Shea, C.

1995-06-13T23:59:59.000Z

355

New rhenium(I) compounds containing the donor-acceptor diphosphine ligands 2-(ferrocenylidene)-4,5-bis(diphenylphosphino)4-cyclopenten-1,3-dione (fbpcd) and 2-(3-ferrocenylprop-2-ynylidene)-4,5-bis(diphenylphosphino)4-cyclopenten-1,3-dione (fpbpcd): Electrochemical behavior, MO properties, and X-ray diffraction structure of fac-BrRe(CO)(3)(fpbpcd)  

SciTech Connect (OSTI)

Displacement of the labile THF molecules in BrRe(CO){sub 3}(THF){sub 2} (1) by the diphosphine ligands 2-(ferrocenylidene)-4,5-bis(diphenylphosphino)4-cyclopenten-1,3-dione (fbpcd) and 2-(3-ferrocenylprop-2-ynylidene)-4,5-bis(diphenylphosphino)4-cyclopenten- 1,3-dione (fpbpcd) yields the mononuclear compounds fac-BrRe(CO){sub 3}(fbpcd) (2) and fac-BrRe(CO){sub 3}(fpbpcd) (3), respectively. The new ligand fpbpcd ligand has been synthesized from 3-ferrocenylpropynal and the parent diphosphine ligand 4,5-bis(diphenylphosphino)-4-cyclopenten-1,3-dione (bpcd) through a Knoevenagel condensation. 2 and 3 have been isolated and fully characterized by IR and NMR spectroscopies ({sup 1}H and {sup 31}P), ESI mass spectrometry, and X-ray diffraction analysis in the case of 3. The electrochemical properties of compounds 2 and 3 have been examined by cyclic voltammetry, and the nature of the HOMO and LUMO levels in these systems has been confirmed by MO calculations at the extended Hueckel level. The redox and MO data are discussed relative to the redox and orbital properties of related functionalized diphosphines based on the bpcd platform.

Poola, Bhaskar [University of North Texas; Richmond, Michael G. [University of North Texas

2009-01-01T23:59:59.000Z

356

Hydrogen for X-group exchange in CH3X, X = Cl, Br, I, OMe and NMe2 byMonomeric [1,2,4-(Me3C)3C5H2]2CeH: Experimental and Computational Support for a Carbenoid Mechanism  

SciTech Connect (OSTI)

The reaction between [1,2,4-(Me3C)3C5H2]2CeH, referred to as Cp'2CeH, andCH3X where X is Cl, Br, I, OMe and NMe2, are described. The reactions fall intothree distinct classes. Class a, where X = Cl, Br and I rapidly form Cp'2CeX and CH4without formation of identifiable intermediates in the 1H NMR spectra. Class b, whereX = OMe proceeds rapidly to Cp'2Ce(eta2-CH2OMe) and H2 and then to Cp'2CeOMeand CH4. The methoxymethyl derivative is sufficiently stable to be isolated andcharacterized and it is rapidly converted to Cp'2CeOMe in presence of BPh3. Class c,where X = NMe2 does not result in formation of Cp'2CeNMe2, but deuterium labelingexperiments show that H for D exchange occurs in NMe3. Density functionalcalculations DFT(B3PW91) on the reaction of (C5H5)2CeH, referred to as Cp2CeH,and CH3X show that the barrier for alpha-CH activation, resulting in formation ofCp2Ce(eta2-CH2X), proceeds with a relatively low activation barrier (DeltaG++) but thesubsequent ejection of CH2 and trapping by H2 has a higher barrier; the height of thesecond barrier lies in the order F, Cl, Br, I< OMe<< NMe2, consistent with theexperimental studies. The DFT calculations also show that the two-step reaction,which proceeds through a carbenoid intermediate, has a lower barrier than a directone-step sigma bond metathesis mechanism. The reaction of Cp2CeCH2OMe and BPh3 is calculated to be a low barrier process and the ylide, CH2(+)BPh3(-), is a transition state and not an intermediate.

Werkema, Evan; Andersen, Richard; Yahia, Ahmed; Maron, Laurent; Eisenstein, Odile

2009-05-15T23:59:59.000Z

357

UNE BR`EVE HISTOIRE DES NOMBRES PHILIPPE LANGEVIN  

E-Print Network [OSTI]

'eologiques montrent que l'histoire ( occidentale ) des nombres prend source chez les 'egyp* *tiens et les babyloniens

Faccanoni, Gloria

358

Working Title Scientist 3 Auto req ID 1024BR  

E-Print Network [OSTI]

of these vegetation management efforts. Will work with the staff and management at the field stations. Reports to the Vegetation Management Section's Invasive Species Unit Lead Scientist and will work closely. Prepares required work orders and reports for planning, implementing and documenting vegetation management

Mazzotti, Frank

359

antibody chimeric br96: Topics by E-print Network  

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

(15-17) and that the interaction between CD2 and LFA-3 can mediate adhesion of J Clark; Debbie A Law; David J Paterson; Michael Puklavec; Alan; F. Williams 1988-01-01 342...

360

OBIEZIONE ALLA TESI CHE SOLO SENECA AGISCA MORALMENTE Sono in disaccordo con la tesi semplicistica che nell'opera di Monteverdi  

E-Print Network [OSTI]

in un piano omicida e questo è male. Anche Drusilla potrebbe ragionare che Ottone stia praticando l

Bellin, Gianluigi

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


361

Disegnare con le equazioni Bacciotti Andrea  

E-Print Network [OSTI]

magari, anche un po' di fortuna) si possono ottenere dei disegni non solo interessanti dal punto di vista

Bacciotti, Andrea

362

Home | in English Silvio Greco: un profilo biografico  

E-Print Network [OSTI]

tutti i suoi allievi, ed anche da tutti i colleghi e amici che hanno avuto la fortuna di incontrarlo

Ceragioli, Francesca

363

Carlo Cercignani July 13, 2010  

E-Print Network [OSTI]

Lincei, anche dell'Accademia di Parigi), non ebbe alcuno scrupolo a pren- dere una posizione a cui la

Galgani, Luigi

364

Il Regno del Quasi. Icone cinesi nelle rappresentazioni partenopee di Ermanno Rea e Roberto Saviano  

E-Print Network [OSTI]

i suoi lettori per le fogne di Parigi. Rey Chow, Primitiveda due innamorati a Parigi, ma anche di fenomeni pi

Fulginiti, Valentina

2012-01-01T23:59:59.000Z

365

ORIGINAL ARTICLE Using PET with 18  

E-Print Network [OSTI]

in a clinical environment V. Camus & P. Payoux & L. Barré & B. Desgranges & T. Voisin & C. Tauber & R. La Joie-min period 50 min after injection of florbetapir (mean ± SD of V. Camus (*) :C. Tauber :C. Hommet :K U930-CNRS ERL 3106, Tours, France e-mail: vincent.camus@univ-tours.fr V. Camus :C. Tauber :C. Hommet

Boyer, Edmond

366

Nuclide Imaging: Planar Scintigraphy, SPECT, PET  

E-Print Network [OSTI]

: energy of each photon 2 4 r AE I = #12;EL5823 Nuclear Imaging Yao Wang, Polytechnic U., Brooklyn 9 by Prince. Figures are from the textbook except otherwise noted. #12;EL5823 Nuclear Imaging Yao Wang5823 Nuclear Imaging Yao Wang, Polytechnic U., Brooklyn 3 What is Nuclear Medicine · Also known

Suel, Torsten

367

SynchroPET LLC | Department of Energy  

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

is developing a low-cost, advanced lithium-ion battery that employs a novel silicon graphene composite material that will substantially improve battery cycle life. When combined...

368

Positron Emission Tomography (PET) and Positron Scanning  

Office of Scientific and Technical Information (OSTI)

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartmentNationalRestart of theResourcecomments/rss en GreatPhotovoltaic Systems. |DOE R&D

369

Chemometric and QSAR prediction of the multidrug resistance of VmrA efflux pump from Vibrio parahaemolyticus Rudolf Kiralj and Mrcia Miguel Castro Ferreira. marcia@iqm.unicamp.br, rudolf@iqm.unicamp.br, http://lqta.iqm.unicamp.br  

E-Print Network [OSTI]

HO H NH OH Tetracycline (8) O O O H H HO H H OH H OH H H H O O O O H HO H H NH H HHO O OO O O H H H H OH H OHH H OH NH2 H OH H O H HN HHN NH2 OH H OH HHO H H HN NH2 NH2 Streptomycin (10) H O OH HH H H H

Ferreira, Mrcia M. C.

370

QSAR study of structurally unrelated substrates of MDR efflux pump VmrA from V. parahaemolyticus Rudolf Kiralj and Mrcia Miguel Castro Ferreira. marcia@iqm.unicamp.br, rudolf@iqm.unicamp.br, http://lqta.iqm.unicamp.br  

E-Print Network [OSTI]

QSAR study of structurally unrelated substrates of MDR efflux pump VmrA from V. parahaemolyticus classes can be observed: good (G), moderately good (M) and poor (P1, P2) substrates of the VmrA pump, and periplasmic). This provokes allosteric changes in the structure of this MDR efflux pump, and opens its

Ferreira, Márcia M. C.

371

Linearit`a delle isometrie di Rn Maurizio Cornalba  

E-Print Network [OSTI]

`a possiamo anche supporre che y stia tra x e z. Ne segue che x - z = x - y + y - z e quindi che f(x) - f

Cornalba, Maurizio

372

1 IL "LINGUAGGIO MATEMATICO" Il linguaggio matematico moderno `e basato su due concetti fondamentali: la `teoria  

E-Print Network [OSTI]

, in modo che, per esempio, AB sia bene definito anche quando non c'`e alcun elemento che stia sia in A che

Tauraso, Roberto

373

UNIVERSITA' DEGLI STUDI DI BARI "Aldo Moro" Manifesto degli studi A.A. 2013-2014 per Studenti a Tempo Pieno  

E-Print Network [OSTI]

il metodo scientifico di indagine e modellizzazione e sappiano ben utilizzare gli strumenti sviluppo di software, acquisendo anche ulteriori #12;conoscenze di calcolo numerico e statistica. Infine

Malerba, Donato

374

E-Print Network 3.0 - au br cu Sample Search Results  

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

University of Virginia Collection: Materials Science 13 Sensing of carbon monoxide gas in reducing environments Prabir K. Duttaa,* Summary: . Current-voltage curves...

375

Kurze Mitteilungen-Brief Reports -Communications br6ve Half-space Analysis Basic to the  

E-Print Network [OSTI]

to the Linearized Boltzmann Equation By C. E. SiewerO), Instituto de Energia At6mica, Cidade Universit/tria, S~o Paulo, Brasil 1. Introduction We wish to consider here the linearized Boltzmann equation written

Siewert, Charles E.

376

UNC-GA IRA/API.BR001/30NOV10 Academic Program Inventory, 2010  

E-Print Network [OSTI]

=============================================================================================== Discipline Division, CIP Code, CIP Discipline, Discipline Division, CIP Code, CIP Discipline, Degree =============================================================================================== Discipline Division, CIP Code, CIP Discipline, Discipline Division, CIP Code, CIP Discipline, Degree

Liu, Paul

377

LEU fuel cycle analyses for the Belgian BR2 Research Reactor  

SciTech Connect (OSTI)

Equilibrium fuel cycle characteristics were calculated for reference HEU and two proposed LEU fuel cycles using an 11-group diffusion-theory neutron flux solution in hexagonal-Z geometry. The diffusion theory model was benchmarked with a detailed Monte Carlo core model. The two proposed LEU fuel designs increased the {sup 235}U loading 20% and the fuel meat volume 51%. The first LEU design used {sup 10}B as a burnable absorber. Either proposed LEU fuel element would provide equilibrium fuel cycle characteristics similar to those of the HEU fuel cycle. Irradiation rates of Co control followers and Ir disks in the center of the core were reduced 6 {plus minus} 1% in the LEU equilibrium core compared to reference HEU core. 11 refs., 4 figs., 5 tabs.

Deen, J.R.; Snelgrove, J.L.

1988-01-01T23:59:59.000Z

378

Preliminary LEU fuel cycle analyses for the Belgian BR2 reactor  

SciTech Connect (OSTI)

Fuel cycle calculations have been performed with reference HEU fuel and LEU fuel using Cd wires or boron as burnable absorbers. The /sup 235/U content in the LEU element has increased 20% to 480g compared to the reference HEU element. The number of fuel plates has remained unchanged while the fuel meat thickness has increased to 0.76 mm from 0.51 mm. The LEU meat density is 5.1 Mg U/m/sup 3/. The reference fuel cycle was a 31 element core operating at 56 MW with a 19.8 day cycle length and eight fresh elements loaded per cycle. Comparable fuel cycle characteristics can be achieved using the proposed LEU fuel element with either Cd wires or boron burnable absorbers. The neutron flux for E/sub n/ > 1 eV changes very little (<5%) in LEU relative to HEU cores. Thermal flux reductions are 5 to 10% in non-fueled positions, and 20 to 30% in fuel elements.

Deen, J.R.; Snelgrove, J.L.

1986-01-01T23:59:59.000Z

379

Method of increments for the halogen molecular crystals: Cl, Br, and I  

SciTech Connect (OSTI)

Method of increments (MI) calculations reveal the n-body correlation contributions to binding in solid chlorine, bromine, and iodine. Secondary binding contributions as well as d-correlation energies are estimated and compared between each solid halogen. We illustrate that binding is entirely determined by two-body correlation effects, which account for >80% of the total correlation energy. One-body, three-body, and exchange contributions are repulsive. Using density-fitting (DF) local coupled-cluster singles, doubles, and perturbative triples for incremental calculations, we obtain excellent agreement with the experimental cohesive energies. MI results from DF local second-order Mller-Plesset perturbation (LMP2) yield considerably over-bound cohesive energies. Comparative calculations with density functional theory and periodic LMP2 method are also shown to be less accurate for the solid halogens.

Steenbergen, Krista G. [Physikalische und Theoretische Chemie, Freie Universitt Berlin, Takustr. 3, 14195 Berlin (Germany); MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, P.O. Box 600, Wellington 6012 (New Zealand); Gaston, Nicola [MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, P.O. Box 600, Wellington 6012 (New Zealand); Mller, Carsten; Paulus, Beate [Physikalische und Theoretische Chemie, Freie Universitt Berlin, Takustr. 3, 14195 Berlin (Germany)

2014-09-28T23:59:59.000Z

380

Optimization strategies for sustainable fuel cycle of the BR2 Reactor  

SciTech Connect (OSTI)

The objective of the present study is to achieve a sustainable fuel cycle in a long term of reactor operation applying advanced in-core loading strategies. The optimization criteria concern mainly enhancement of nuclear safety by means of reactivity margins and minimization of the operational fuel cycle cost at a given (constant) power level and same or longer cycle length. An important goal is also to maintain the same or to improve the experimental performances. Current developments are focused on optimization of control rods localization; optimization of fresh and burnt fuel assemblies in-core distribution; optimization of azimuth and axial fuel burn up strategies, including fuel assembly rotating and flipping upside down. (authors)

Kalcheva, S.; Van Den Branden, G.; Koonen, E. [SCK-CEN, BR2 Reactor, Boeretang 200, Mol, 2400 (Belgium)

2013-07-01T23:59:59.000Z

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


381

Photoelectron spectroscopy of the halogen oxide anions FO-, CIO-, BrO-, IO-, OCIO-, and OIO-  

E-Print Network [OSTI]

of Colorado and National Institute of Standards and Technology, and Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0440 (Received 29 January 1992; accepted 28 February 1992, by Dotan et al." Vogt et a1.12measured the energy depend- ence of the ClO- product channel in the reaction

Lineberger, W. Carl

382

144 J.Br.Astron.Assoc. 115,3, 2005 1 Meade LX200  

E-Print Network [OSTI]

(BCF), offset from the central secondary mirror, in a simple mask with two windows, one of which down to an 80mm glass solar neutral density (ND) filter, as available from Broadhurst Clarkson & Fuller

Norton, Andrew J.

383

Image Reconstruction with a LaBr3-based Rotational Modulator  

E-Print Network [OSTI]

A rotational modulator (RM) gamma-ray imager is capable of obtaining significantly better angular resolution than the fundamental geometric resolution defined by the ratio of detector diameter to mask-detector separation. An RM imager consisting of a single grid of absorbing slats rotating ahead of an array of a small number of position-insensitive detectors has the advantage of fewer detector elements (i.e., detector plane pixels) than required by a coded aperture imaging system with comparable angular resolution. The RM therefore offers the possibility of a major reduction in instrument complexity, cost, and power. A novel image reconstruction technique makes it possible to deconvolve the raw images, remove sidelobes, reduce the effects of noise, and provide resolving power a factor of 6 - 8 times better than the geometric resolution. A 19-channel prototype RM developed in our laboratory at Louisiana State University features 13.8 deg full-angle field of view, 1.9 deg geometric angular resolution, and the c...

Budden, B; Cherry, M L

2010-01-01T23:59:59.000Z

384

LAKESHORE AVON BR ANT-EDEN ALD EN-LANC ASTER AU BURN W SH ELDON  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines AboutDecember 2005 (Thousand9,0, 1997EnvironmentElectricityrgy

385

LAKESHORE AVON BR ANT-EDEN ALD EN-LANC ASTER AU BURN W SH ELDON  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines AboutDecember 2005 (Thousand9,0, 1997EnvironmentElectricityrgy81 § ¨ ¦ 81 LAKESHORE

386

LAKESHORE AVON BR ANT-EDEN ALD EN-LANC ASTER AU BURN W SH ELDON  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelines AboutDecember 2005 (Thousand9,0, 1997EnvironmentElectricityrgy81 § ¨ ¦ 81

387

http://www.biotaneotropica.org.br USO E CONSERVAO DA ICTIOFAUNA NO ECOTURISMO DA  

E-Print Network [OSTI]

State, stand out in Brazil as national reference of example of correct practices in the ecotourism. Key words: Biodiversity, Wildlife Conservation, Ecotourism, Economic Value of Nature, Sustainable

Floeter, Sergio Ricardo

388

Guide to Developing Air-Cooled Lithium Bromide (LiBr) Absorption for CHP  

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

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 Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Source Heat2 December 2006

389

Br-rich Tips of Calcified Crab Claws are Less Hard but More Fracture  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScienceCareers ApplyResistant: A Comparison of Mineralized and

390

Comparison of CsBr and KBr coated Cu photocathodes: Effects of laser  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New SubstationCleanCommunity Involvement andMISR, and MODIS Comparison of

391

Spectroscopic Evidence for a High-Spin Br-Fe(IV)-Oxo Intermediate in the  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBiSiteNeutron Scattering Facilities5:68MtrC

392

Tank Farm Closure & Waste Management Environmental Impact Statement <br>  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus TomAboutManus Site-Inactive TWPCarbonTake aTalentTammy

393

Revista da Biologia www.ib.usp.br/revista ISSN 1984-5154 Sumrio _____________________________ Volume 5  

E-Print Network [OSTI]

CORUMBATAÍ, BACIA DO PARANÁ, BRASIL Rodrigo B. Salvador e Luiz R. L. Simone 25 FISIOLOGIA SENSORIAL Felipe-Silva Editor Ecologia: Marcelo Luiz Martins Pompêo e Paulo Enrique Cardoso Peixoto Editor Fisiologia: André Frazão Helene e Gilberto Fernando Xavier Editor Genética e Biologia Evolutiva: Carlos Ribeiro Vilela

Morandini, Andre C.

394

PET And Bioluminescent Imaging Aid Evaluation Of Stem Cells'...  

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

interactive.snm.orgindex.cfm?PageID903&CFID27713770&CFTOKEN13840564 Submitted: Tuesday, December 4, 2007 - 1...

395

animal pet studies: Topics by E-print Network  

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

objects to communicate with other persons, although Gutkin, Boris 30 Record Keeping and Care for Animals in Study Areas Definitions Computer Technologies and Information Sciences...

396

animal pet study: Topics by E-print Network  

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

objects to communicate with other persons, although Gutkin, Boris 30 Record Keeping and Care for Animals in Study Areas Definitions Computer Technologies and Information Sciences...

397

PET Plants: Imaging Natural Processes for Renewable Energy  

E-Print Network [OSTI]

is biomass? Edible biomass · sugars (sugar cane) · starches (corn) Inedible biomass: fibrous or woody parts (cellulosic or lignocellulosic biomass) #12;What is biomass? Edible biomass · sugars (sugar cane) · starches (corn) Inedible biomass: fibrous or woody parts (cellulosic or lignocellulosic biomass) #12;Inedible

Homes, Christopher C.

398

Spatiotemporal reconstruction of list-mode PET data  

SciTech Connect (OSTI)

We describe a method for computing a continuous time estimate of tracer density using list-mode positron emission tomography data. The rate function in each voxel is modeled as an inhomogeneous Poisson process whose rate function can be represented using a cubic B-spline basis. The rate functions are estimated by maximizing the likelihood of the arrival times of detected photon pairs over the control vertices of the spline, modified by quadratic spatial and temporal smoothness penalties and a penalty term to enforce nonnegativity. Randoms rate functions are estimated by assuming independence between the spatial and temporal randoms distributions. Similarly, scatter rate functions are estimated by assuming spatiotemporal independence and that the temporal distribution of the scatter is proportional to the temporal distribution of the trues. A quantitative evaluation was performed using simulated data and the method is also demonstrated in a human study using 11C-raclopride.

Nichols, Thomas E.; Qi, Jinyi; Asma, Evren; Leahy, Richard M.

2002-03-01T23:59:59.000Z

399

advancing pet science: Topics by E-print Network  

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

in Plant Fields Modern Physical Chemistry). It is designed for undergraduates majoring in science and engineering. We will offer cutting edge classes in advanced sciences and...

400

Use of PET in the understanding of Addiction  

SciTech Connect (OSTI)

The objective of this research is to understand the factors contributing to addiction in the human and to understand the effects of addiction on the brain.

Schlyer D. J.; Schlyer, D.J.

2013-04-03T23:59:59.000Z

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


401

I 'RADIOPHARNACEUTICALS IN PET, PROGRESS AND PROMISE F  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinementEtching. | EMSL Bubblesstructure eind ExcBAECC: - _ --f

402

Sinking a Pet's Teeth into Energy Saving | Department of Energy  

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

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment of Energy U.S. DepartmentCommitment for aIn this update,SherryDepartmentErnie

403

Longitudinal Effects of Cognitive Reserve and Vascular Risks in Aging and Dementia  

E-Print Network [OSTI]

PET ROIs: fludeoxyglucose F18- PET region-of-interest. TablePET ROIs: fludeoxyglucose F18- PET region-of-interest. TablePET ROIs: fludeoxyglucose F18- PET region-of-interest; GEE:

Lo, Yen Yu

2012-01-01T23:59:59.000Z

404

Pyrrolo isoquinolines  

DOE Patents [OSTI]

Compounds of the formula: ##STR1## wherein X, Y, and R, independently of one another, is each a H; halogen, wherein said halogen is selected from the group consisting of .sup.123 I, .sup.124 I, .sup.125 I, .sup.131 I, .sup.75 Br, .sup.76 Br, .sup.77 Br, .sup.82 Br, .sup.18 F, or .sup.210 At; small alkyl, small alkenyl, or small alkynyl, any of which contains from one to about six carbon atoms and optionally having a carbon atom replaced by an O or S; or halogen substituted-small alkyl, halogen substituted-small alkenyl, or halogen substituted-small alkynyl wherein said compound contains at least one radioacitve halogen. The compounds bind to the serotonin transporter. Depending upon the choice of halogen substituent, the compounds are useful for PET or SPECT imaging, diagnosis and treatment of psychiatric disorders such as depression, anxiety, obsessive-compulsive disorder, and other conditions associated with defects of serotonin transporter function.

Goodman, Mark M. (Atlanta, GA); Shi, Bing Z. (Cincinnati, OH)

2000-01-01T23:59:59.000Z

405

First measurement of the ratio of branching fractions BR(Lambda(b) to Lambda(c) mu nu)/BR(Lambda(b) to Lambda(c) pi) at CDF II  

SciTech Connect (OSTI)

In this dissertation, we measure the properties of the lowest-mass beauty baryon, {Lambda}{sub b}. Baryons are the bound states of three quarks. Protons and neutrons, constituents of atomic nuclei, are the most common baryons. Other types of baryons can be produced and studied in the high-energy collider environment. Three-body dynamics makes baryons composed of low mass quarks difficult to study. On the other hand, baryons with one heavy quark simplify the theoretical treatment of baryon structure, since the heavy quark can be treated the same way as the nucleus in the atom. The {Lambda}{sub b} is composed of u, d, and b quarks, where the b quark is much heavier than the other two. Although, it is accessible, little is known about {Lambda}{sub b}. In 1991, UA1 [1] reconstructed 9 {+-} 1 {Lambda}{sub b} {yields} J/{Psi}{Lambda} candidates. In 1996, ALEPH and DELPHI reconstructed the decay {Lambda}{sub b} {yields} {Lambda}{sub c}{sup +}{pi}{sup -} and found only 3-4 candidates [2, 3]. ALEPH measured a {Lambda}{sub b} mass of 5614 {+-} 21 MeV/c{sup 2}, while DELPHI measured 5668 {+-} 18 MeV/c{sup 2}, about 2 {sigma} higher. Subsequently, CDF-I observed 20 {Lambda}{sub b} {yields} J/{Psi}{Lambda} events [4], confirmed the existence of {Lambda}{sub b} unambiguously and made a more precise measurement of {Lambda}{sub b} mass, 5621 {+-} 5 MeV/c{sup 2}. A recent CDF-II measurement by Korn [5] yields 5619.7 {+-} 1.7 MeV/c{sup 2}, which will significantly improve the current world average, 5624 {+-} 9 MeV/c{sup 2}, and resolve the discrepancy of ALEPH and DELPHI.

Yu, Shin-shan; /Pennsylvania U.

2005-01-01T23:59:59.000Z

406

E-Print Network 3.0 - approssimazione di italo Sample Search...  

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

6 ESERCIZI SETTIMANA 17-21 OTTOBRE 2011 Risolvere i seguenti problemi in ambiente Matlab Summary: funzione S(n) 2n ( n exp(1) )n , chiamata anche approssimazione di...

407

ELABORAZIONE dei SEGNALI nei SISTEMI di CONTROLLO Lezione 11: Risposta di sistemi dinamici ad ingressi aleatori: analisi  

E-Print Network [OSTI]

- cesso. L'idea `e che fra tutte le evoluzioni del modello nominale pilotate dalle realizzazioni di w · Le equazioni valgono anche per sistemi instabili o tempo-varianti. Esse descrivono il comportamento

Chisci, Luigi

408

UNIVERSIT DI BRESCIA FACOLT DI INGEGNERIA  

E-Print Network [OSTI]

a permettere la localizzazione a 360 gradi del robot da parte delle videocamere, anche di risparmiare energia studiato appositamente per essere immune alle interferenze dovute alla luce solare in spazi aperti. Al

Cassinis, Riccardo

409

New Italian Epic: unipotesi di critica letteraria, e daltro  

E-Print Network [OSTI]

sostiene Wu Ming: la tecnologia della parola riprodotta.si sa, non v certezza). Ci che la tecnologia potenzia,la stessa tecnologia pu anche depotenziare. Al pericolo che

Fulginiti, Valentina; Vito, Maurizio

2011-01-01T23:59:59.000Z

410

Alcune difficolt con il caro vecchio Teorema di Prospettive per una ricerca  

E-Print Network [OSTI]

razionale. L'ipotesi di Zeuthen ha avuto molta fortuna ed è stata ripresa dagli studiosi anche recentemente2 . La dimostrazione data da Euclide nella I,47 ebbe varia fortuna nella didattica del teorema di

Spagnolo, Filippo

411

Fifth Italian Congress of Econometrics and Empirical Economics (ICEEE 2013) January 16-18, 2013 -Genova, Italy  

E-Print Network [OSTI]

Fifth Italian Congress of Econometrics and Empirical Economics (ICEEE 2013) January 16-18, 2013 Econometria (SIdE, anche Italian Econometric Association). Oggi in particolare si vive un tempo di diffusa

Robbiano, Lorenzo

412

Informatica Laurea magistrale in Scienze della mente  

E-Print Network [OSTI]

sola occorrenza (o nessuna) dell'altra entit che partecipa all'associazione N: c' un essere residente in una e una sola citt Ogni citt pu avere qualsiasi numero di residenti (anche

Sproston, Jeremy

413

Informatica Laurea magistrale in Psicologia  

E-Print Network [OSTI]

sola occorrenza (o nessuna) dell'altra entit che partecipa all'associazione N: c' un essere residente in una e una sola citt Ogni citt pu avere qualsiasi numero di residenti (anche

Sproston, Jeremy

414

219itinerari d'impresa ~ inverno 2006-2007 / opere / sonde Il nuovo spirito del capitalismo un gran-  

E-Print Network [OSTI]

'Ecole des Hautes Etu- des en Sciences Sociales di Parigi, è stato il principale artefice del rinnovamento Chiapello, più giovane, anche lei sociologa,insegna alla Haute Eco- le Commerciale a Parigi.Nel corso degli

Paris-Sud XI, Université de

415

Abelardo, Eloisa e la paleografia integrale  

E-Print Network [OSTI]

del cartolario di Ntre Dame di Parigi 23 e anche in quellodi Santa Maria di Merry di Parigi 24 e pensiamo che varrebbeun archetipo prepa- rato a Parigi nellentourage del vescovo

Troncarelli, Fabio

2007-01-01T23:59:59.000Z

416

12-BR-UT 43-2310-1 Important: Please see the Notice on the first page of  

E-Print Network [OSTI]

required by the health care reform law for restrictions on annual dollar limits. The annual dollar limits concerning student health insurance coverage. 2013-2014 Designed Especially for the Students of LIMITED BENEFIT HEALTH COVERAGE BENEFITS PROVIDED ARE SUPPLEMENTAL AND ARE NOT INTENDED TO COVER ALL MEDICAL

Feschotte, Cedric

417

Revista Brasileira de Ensino de Fisica, v. 27, n. 1, p. 101 -102, (2005) www.sbfisica.org.br  

E-Print Network [OSTI]

de F´isica `Gleb Wataghin', Universidade Estadual de Campinas, Campinas, SP, Brasil O trabalho de¸c~ao experimental da quantiza¸c~ao dos n´iveis de energia dos ´atomos. As propostas de Bohr e Sommerfeld indicavam

de Aguiar, Marcus A. M.

418

Revista Brasileira de Ensino de Fisica, v. 27, n. 1, p. 103 -107, (2005) www.sbfisica.org.br  

E-Print Network [OSTI]

fun¸c~ao energia1 . Seja ainda J(t, q1 . . . ql, 1 . . . l) uma integral completa da equa~ao Carlos, SP, Brasil. Revis~ao t´ecnica de Marcus A.M. de Aguiar. Instituto de F´isica "Gleb Wataghin", Universidade Estadual de Campinas, Campinas, SP, Brasil. 1Pois tem-se neste caso dH dt = i H qi . qi + i H pi

de Aguiar, Marcus A. M.

419

Observations of hydroxyl and peroxy radicals and the impact of BrO at Summit, Greenland in 2007 and 2008  

E-Print Network [OSTI]

investigations at Summit, Greenland: An overview, J.upon ice particles in the Greenland snowpack, Geophys. Res.the snowpack at Summit, Greenland, Atmos. Environ. , 36,

2011-01-01T23:59:59.000Z

420

Quim. Nova, Vol. 30, No. 2, 346-350, 2007 *e-mail: morgano@ital.sp.gov.br  

E-Print Network [OSTI]

PARCIAIS Marcelo A. Morgano* Centro de Qumica de Alimentos e Nutrio Aplicada, Instituto de Tecnologia de

Ferreira, Mrcia M. C.

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


421

Marker-Assisted Verification of Hybrids in Pearl Millet-Napiergrass (Pennisetum glaucum [L.] R. Br. x Pennisetum purpureum Schumach.)  

E-Print Network [OSTI]

and will continue to increase because the world population is expected to reach at least nine billion by 2050 (UN Dep. Social Economic Affairs, 2010). The production of bioenergy crops, therefore, is largely being targeted away from productive agricultural lands..., such alternative sources of land must be utilized to grow biofuel crops (Sissine, 2007). These alternative sources exist and can be provided by marginal and currently fallow farmlands and grasslands. According to the Wisconsin Grasslands Bioenergy Network...

Dowling, Charlie

2012-02-14T23:59:59.000Z

422

Synergistic effects of 2-aminoethylisothiuronoium.Br.HBr (AET) and dimethyl sulfoxide (DMSO) in chemical radioprotection of mice  

E-Print Network [OSTI]

to irradi- ation& could confer a 7OX protection against a lethal dose of x-rays. It has been shown by Vos and Kaalen (18) and by Bridges (19) that DMSO can protect tissue culture cells and bacteria against the lethal effects of ionizing radiation. Gollan... addition of glutathione. Following the above work of Barron, Patt ef af. (7) found that the lethal effect of x-rays could be lessened by prior treatment with cysteine. This work stimu- lated a search for more potent chemicals which possessed the ability...

Frei, Melvin Ray

1968-01-01T23:59:59.000Z

423

Finding the missing stratospheric Bry: a global modeling study of CHBr3 and CH2Br2  

E-Print Network [OSTI]

and dispersion of a Mexico City pollution out- flow eventon air pollution in the Mexico City Metropolitan Area,pollution transport during the MILAGRO-2006 campaign: a case study of a major Mexico

2010-01-01T23:59:59.000Z

424

~thtV\\~ I\\br1i\\~C\\MSof\\ ~oJl aoI':l.  

E-Print Network [OSTI]

+hC\\V\\Y Abru.~ctMsoV\\ fo. (( aOIa M.~t\\\\C\\{03 Y ~d ~\\lrnctl l' :5 130cl:~a ~ k* ca,\\4PMI "'i(e~e'1

425

Modlin RL, Melancon-Kaplan J, Young SM, Pir-mez C, Kino H, Convit J, Rea TH, Bloom BR  

E-Print Network [OSTI]

activity. J lmmunoi 148, 3578-3572 Pépin M, Cannella D, Fontaine JJ, Pittet JC, Le Pape A (1992) Ovine Cancer Re-N Hogg (Imperial Cancer Re- search Fund, London WC2A 3PX, UK) The dynamic interaction between to agents such as thrombin or hista- mine causes margination of leukocytes. This 'tethering' of leukocytes

Paris-Sud XI, Université de

426

Biomechanics and tennis Br J Sports Med 2006;40:392396. doi: 10.1136/bjsm.2005.023150  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Correspondence to: Professor Elliott, University of Western Australia, Perth, WA, Australia; bruce this development. Muscle pre-tension (elastic energy) In a stretch-shorten cycle, elastic energy stored during

Cooper, Robin L.

427

Finding the missing stratospheric Bry: a global modeling study of CHBr3 and CH2Br2  

E-Print Network [OSTI]

Methanol Ethanol Acetone MEK MTBE CO Methane UCI UCI TOGA/methyl tertiary butyl ether (MTBE), and toluene all ratioedthe observed decay. For MTBE, also a species that is not

2010-01-01T23:59:59.000Z

428

Surface Chemistry of CH3Br and Methyl Modified by Copper Deposition on Ru(001) T. Livneh and M. Asscher*  

E-Print Network [OSTI]

. They are observed at the step edges or adatoms that may alter adsorbate binding energy and generate new adsorption), the modified electronic structure was found to induce perturbations, which extend up to 50-100 ? away sites.20,21 Step ed

Asscher, Micha

429

EUROBRISA products documentation This page (http://eurobrisa.cptec.inpe.br/) presents 1-month lead South America precipitation  

E-Print Network [OSTI]

South America precipitation forecasts and verification products for three month seasons. For example surface temperatures as predictor variables for precipitation over South America. For example

430

EUROBRISA products documentation This page (http://eurobrisa.cptec.inpe.br/) presents 1-month lead South America precipitation  

E-Print Network [OSTI]

South America precipitation forecasts and verification products for three month seasons. For example Pacific and Atlantic sea surface temperatures as predictor variables for precipitation over South America

431

EUROBRISA products documentation This page (http://eurobrisa.cptec.inpe.br/) presents 1-month lead South America precipitation  

E-Print Network [OSTI]

South America precipitation forecasts and verification products for three month seasons. For example) that uses Pacific and Atlantic sea surface temperatures as predictor variables for precipitation over South America. For example, the observed sea surface temperature in the previous February is used as predictor

432

Synthesis and Screening of Thin Films in the CeCl3-CeBr3 System for  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security AdministrationcontrollerNanocrystallineForeign Object Damage 3 B. L.Luminescence of|Properties

433

A new interpretation of total column BrO during Arctic spring R. J. Salawitch,1,2,3  

E-Print Network [OSTI]

. Bui,18 G. Chen,19 R. B. Pierce,20 J. H. Crawford,19 and D. J. Jacob21 Received 30 April 2010; revised the convective boundary layer (CBL) during the ARCTAS and ARCPAC field campaigns at times bear little relation

Pan, Laura

434

Finding the missing stratospheric Bry: a global modeling study of CHBr3 and CH2Br2  

E-Print Network [OSTI]

C-130 T0 T1 G1 Ethane Propane i-Butane n-Butane i-Pentane n-ppbv) Ethane Ethene Ethyne Propane Propene i-Butane n-Butanee.g. , ethane, ethene, propane, propane, methanol, ethanol,

2010-01-01T23:59:59.000Z

435

Campus Universitrio -Trindade -Florianpolis Fone: (48) 3721-6405 e-mail: contato@posdesign.ufsc.br  

E-Print Network [OSTI]

Ribas Gomez Banca: Gilson Braviano (UFSC) Richard Perassi Luiz de Sousa (UFSC) Filipe Campelo Xavier da cegas Orientador: Gilson Braviano Banca: Berenice Santos Gonçalves (UFSC) Richard Perassi Luiz de Sousa de design aplicada à economia solidária e seus empreendimentos econômicos solidários Orientador: Luiz

Floeter, Sergio Ricardo

436

warhead protection  

National Nuclear Security Administration (NNSA)

developing a Personnel Reliability Program and a support structure for long-term sustainability.<br ><br >ONWP employs a three-phased implementation strategy:<br ><br...

437

Implementation of EU Waste Recycling Regulation in Macedonia: The Challenges of Policy Integration and Normative Change  

E-Print Network [OSTI]

a specific focus on the recycling of PET plastic bottles andprocess I chose recycling of PET plastic bottles andinformal recycling in Skopje. They collect mainly PET and

Ilievska Kremer, Jannika Sjostrand

2013-01-01T23:59:59.000Z

438

How Much Water is Enough? Using PET to Develop Water Budgets for Residential landscapes  

E-Print Network [OSTI]

&M University College Station, TX 77843-2474 ABSTRACT Conserving and reducing the amount of water used for landscape irrigation continues to be a major issue for municipalities throughout Texas and the nation. Landscape irrigation increases... dramatically during summer months and contributes substantially to peak demand placed on municipal water supplies. A survey of monthly water use during 2000 through 2002 for 800 residences of similar size and appraised value in College Station, Texas...

White, R.; Havalak, R.; Nations, J.; Thomas, J.; Chalmers, D.; Dewey, D.

2004-01-01T23:59:59.000Z

439

ALGORITHMS FOR JOINT ESTIMATION OF ATTENUATION AND EMISSION IMAGES IN PET  

E-Print Network [OSTI]

radiolabeled compounds yields two high energy photons emitted in opposing directions. However, often reconstruct the at- tenuation map image with a local smoothing penalty and reproject them to obtain ACFs [2 sequential estimation strategy. 2. THE MODEL Let = [1, . . . , p] denote the vector of unknown emission

Erdogan, Hakan

440

Is it interesting? Comparing human and machine judgements on the PETS dataset  

E-Print Network [OSTI]

, someone will do something different or interesting ­ something that does not fit our general understanding at identifying such events. Many systems are actually designed to do something else, and atypicality detection the problematic cases by hand - looking at the out- liers - and saying "Yes, that's unusual" [9, 4]. One model

Hogg, David

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


441

Quantitative analysis of [18F]FDDNP PET using subcortical white matter as reference region  

E-Print Network [OSTI]

PETNet Pharmaceuticals, and Siemens. S.C.H. reports havingon an ECAT EXACT HR+ scanner (Siemens/CTI, Knoxville, TN).analyzed with CAPP software (Siemens/ CTI, Knoxville, TN) on

2010-01-01T23:59:59.000Z

442

Chemical compounds and toxicological assessments of drinking water stored in polyethylene terephthalate (PET)  

E-Print Network [OSTI]

Chemical compounds and toxicological assessments of drinking water stored in polyethyleneMS, gas chromatographyemass spectrometry; HDPE, high density polyethylene; HULYs, human blood lymphocytes

Short, Daniel

443

Brain imaging methods used in experimental brain research such as Positron Emission Tomography (PET) and Functional  

E-Print Network [OSTI]

ABSTRACT Brain imaging methods used in experimental brain research such as Positron Emission of methods create statistical parametric maps (SPMs) of the brain on a voxel- basis. In our approach, they are best understood in the context of the underly- ing 3-D brain anatomy. However, despite the power

Mueller, Klaus

444

Brain imaging methods used in experimental brain research such as Positron Emission Tomography (PET) and Functional  

E-Print Network [OSTI]

ABSTRACT Brain imaging methods used in experimental brain research such as Positron Emission and are best understood in the context of the underlying 3D brain anatomy. In this paper, we present a novel Brain Mapping, Functional Imaging 1 INTRODUCTION Although the human brain is no longer the black box

Mueller, Klaus

445

E-Print Network 3.0 - ausbreitungsdiagnostik mittels fdg-pet...  

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

may have a clinical ... Source: Jadvar, Hossein - Departments of Biomedical Engineering & Radiology, University of Southern California Collection: Biology and Medicine ;...

446

Polymeric Nanoparticle PET/MR Imaging Allows Macrophage Detection in Atherosclerotic Plaques  

E-Print Network [OSTI]

Rationale: Myeloid cell content in atherosclerotic plaques associates with rupture and thrombosis. Thus, imaging of lesional monocytes and macrophages could serve as a biomarker of disease progression and therapeutic ...

Majmudar, M. D.

447

Simulations of gamma quanta scattering in a single module of the J-PET detector  

E-Print Network [OSTI]

This article describes simulations of scattering of annihilation gamma quanta in a strip of plastic scintillator. Such strips constitute basic detection modules in a newly proposed Positron Emission Tomography which utilizes plastic scintillators instead of inorganic crystals. An algorithm simulating chain of Compton scatterings was elaborated and series of simulations have been conducted for the scintillator strip with the cross section of 5 mm x 19 mm. Obtained results indicate that secondary interactions occur only in the case of about 8% of events and out of them only 25$\\%$ take place in the distance larger than 0.5 cm from the primary interaction. It was also established that light signals produced at primary and secondary interactions overlap with the delay which distribution is characterized by FWHM of about 40 ps.

Szyma?ski, K; Bednarski, T; Bia?as, P; Czerwi?ski, E; Giergiel, K; Kap?on, ?; Kochanowski, A; Korcyl, G; Kowal, J; Kowalski, P; Kozik, T; Krzemie?, W; Molenda, M; Moskal, I; Nied?wiecki, Sz; Pa?ka, M; Pawlik, M; Raczy?ski, L; Rudy, Z; Salabura, P; Sharma, N G; Silarski, M; S?omski, A; Smyrski, J; Strzelecki, A; Witkowski, P; Wi?licki, W; Zieli?ski, M; Zo?, N

2013-01-01T23:59:59.000Z

448

E-Print Network 3.0 - axial 3-d pet Sample Search Results  

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

for Brain Imaging and Behavior Collection: Biology and Medicine 22 Positron Emission Tomography Physics, Instrumentation, Data Analysis Summary: ) - Leutetium orthosilicate (LSO) -...

449

Biodistribution and Radiation Dosimetry in Humans of a New PET Ligand, 18F-PBR06,  

E-Print Network [OSTI]

at various time points. Radiation absorbed doses were estimated by the MIRD scheme. Results: Moderate to high and spleen may limit the amount of permissible injected radioactivity. Key Words: MIRD scheme; defluorination

Shen, Jun

450

Resources for Pet, Poultry and Livestock Owners Affected by Natural Disasters  

E-Print Network [OSTI]

Disasters Livestock and Poultry Carcass Disposal For information or guidance on building a car- cass composting pile, contact the Texas AgriLife Extension Service at 806-677-5600 or 979-845- 3931. You can also go to http://agrilifebookstore. org...

Faries Jr., Floron C.

2008-09-02T23:59:59.000Z

451

Pet Name _________________ Species _________________ Breed _________________ Color ___________ Date of Birth/Age _______________ Weight _________________ Gender: M MC F FS  

E-Print Network [OSTI]

a history of: Loose stool, diarrhea or vomiting Respiratory illness ­ nasal discharge, coughing, sneezing

Langerhans, Brian

452

Robotic Pets in the Lives of Preschool Children Peter H. Kahn, Jr.1  

E-Print Network [OSTI]

into physical artifacts ­ personal robots represent a new genre for human-computer interaction. Building. Perez-Granados3 , and Nathan G. Freier2 1 Department of Psychology University of Washington Seattle, WA. Categories & Subject Descriptors: H.1.2 [Models and Principles]: User/Machine Systems ­ Software psychology

Kahn, Peter H.

453

Improved Production and Separation Technologies for Non-standard PET Radionuclides  

SciTech Connect (OSTI)

Brief summary of activity issues, concerns, successes: Project 1 is completed. We have optimized plating parameters with the new target bodies and slanted target plating system. The target station has been mounted on the end of the beamline, service lines have been nstalled to allow for helium and water cooling. We have routinely produced copper-64 using the new slanted target system in conjunction with our automated system. In project 2, we successfully fabricated and tested microfluidic extraction devices made out of two organic solvent-resistant polymers, thiolene and SIFEL. Initially, we developed analytical and computational models to describe the extraction process, and used the model to design the microfluidic devices. Then we optimized the microfabrication procedures to manufacture microreactors, followed by optimization of the operational parameters to obtain a stable aqueous-organic interface, which is critical for efficient extraction. When we tested the thiolene devices for extraction of copper-64, we observed very low extraction efficiencies (less than 5%) due to adhesion of copper to thiolene. However, we observed very high extraction efficiencies with SIFEL devices (greater than 95%), which are due to the high interfacial area for extraction and shorter diffusion lengths.

Welch, Michael J. [Washington University, St. Louis, MO] [Washington University, St. Louis, MO (United States); Lapi, Suzanne [Washington University, St. Louis, MO] [Washington University, St. Louis, MO (United States)

2012-12-01T23:59:59.000Z

454

Effect of micro-patterning on bacterial adhesion on PET (polyethylene terephthalate) surface  

E-Print Network [OSTI]

-known and widely applied 7 techniques in microfluidics, such as photolithography.13, 16 However, the much more important substrate materials 8 in medical devices and food industry that are susceptible to microorganisms are stainless steel, ceramic, and 9... Elastomer Kit, Dow Corning, Midland, MI, USA) was cast onto the wafer, so 29 negative patterns could be replicated on the PDMS elastic stamp. This is now a well-known and widely used 30 5 procedure in microfluidics.26 The epoxy resin and hardener (Easy...

Wang, Liyun; Chen, Wei; Terentjev, Eugene

2014-12-16T23:59:59.000Z

455

6.19 MicroPET Enhances Studies of Small Animals  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICS H.CarbonMarchTHEMaterials and16638 6/1/2011

456

Photo of the Week: Pre-PET Headgear | Department of Energy  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006 TheStevenAdministration Album Of FAPAC -

457

PET And Bioluminescent Imaging Aid Evaluation Of Stem Cells' Potential For  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006 The 2002OpticsPeriodical: Volume 5,

458

Precise Measurement of Strontium-82 Radioactivity in the Sr-Rb PET  

Office of Science (SC) Website

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched5 IndustrialIsadoreConnecticutPhotos of AEC Site Under Construction Basic

459

E-Print Network 3.0 - animal pet bioluminescence Sample Search...  

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

animal imaging," Phys. ... Source: Virginia Tech - Wake Forest University School of Biomedical Engineering and Sciences, Biomedical Imaging Division Collection: Engineering ;...

460

RESUME February 2013 WILLIAM DAVID CONSTANT  

E-Print Network [OSTI]

of Petroleum Fluids PetE 7232 Thermal Methods of Enhanced Oil Recovery PetE 4057 Undergraduate Production Lab

Cai, Steve C. S.

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


461

P.O. Box 5786 Ithaca, New York 14852-5786  

E-Print Network [OSTI]

with commercial pet food consumption, it is important to have the most complete information about the pet food of Salmonella Infantis infections in people and pets linked to dry pet food Both the U. S. Food and Drug diagnostic specimens if animal infection or illness associated with a pet eating one of the recalled pet

Keinan, Alon

462

E-Print Network 3.0 - aptamer-sirna chimeras promotes Sample...  

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

IV-PetL chimeras in cytochrome b6f complex - 1 - Chimeric fusions of subunit IV and Pet... IV-PetL chimeras in cytochrome b6 f complex Additional keywords : PetG, PetM, PetN,...

463

INFORMAES ADICIONAIS PARA A INSCRIO NO DOUTORADO DO CURSO DE PS-GRADUAO EM ENGENHARIA E TECNOLOGIA ESPACIAIS ETE  

E-Print Network [OSTI]

.perondi@inpe.br Joaquim José Barroso de Castro barroso@plasma.inpe.br José Osvaldo Rossi rossi@plasma.inpe.br Luis Antonio

464

An Infrastructure for Adaptive Fault Tolerance on FT-CORBA Lau Cheuk Lung1  

E-Print Network [OSTI]

, 1749-016 Lisboa ­ Portugal e-mail: lau@ppgia.pucpr.br, fabio@das.ufsc.br, gtsantos@hsbc.com.br, mpc

Correia, Miguel

465

J.P. Tomkins et al. 306 Genetics and Molecular Research 1 (4): 306-316 (2002) www.funpecrp.com.br  

E-Print Network [OSTI]

Hall, Clemson, SC 29634, USA 2 Arizona Genomics Institute, 303 Forbes Hall, Tucson, AZ 85721, USA 3 en- zyme HindIII in order to develop resources for structural genomics re- search. The library transposable element databases. Results in spread- sheet format from these searches are publicly available

Hunt, Greg

466

Br-rich tips of calcified crab claws are less hard but more fracture resistant: A comparison of mineralized and heavy-element biological materials  

E-Print Network [OSTI]

of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China d Department of Chemistry the viscoelasticity of the material. We suggest that fracture resistance is of greater importance in smaller organisms cuticle. Bromine is one of a variety of heavy elements including zinc, iron, copper and manganese

Scott, Robert A.

467

Applications of Reliable Scientific Computing I p Ao eHmI HaAexcrmIxHayam,rxBr:,macAeHmi  

E-Print Network [OSTI]

of reliable scien- tific computing are published not only in mathematical journals (that are usually covered.). The experience of the International Workshop on Applications of Interval Computations (El Paso, TX, February 23 by Mathematical Reviews, Zentralblatt fur Mathematik, etc.), but also in the journals of the corre- sponding

Kearfott, R. Baker

468

The chemistry of transition metal complexes related to solar energy storage : H? production and small molecule (CO? and HX; X = Cl, Br) chemistry.  

E-Print Network [OSTI]

The studies in this thesis have focused on the chemistry of transition metal complexes related to solar energy storage: electrochemical H? production, HX splitting and CO? activation mediated by transition metal complexes. ...

Lee, Changhoon, Ph. D. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

469

13/03/13 AUN -Agncia Universitria de Notcias www.usp.br/aun/antigo/www/_reeng/materia.php?cod_materia=1106012 1/2  

E-Print Network [OSTI]

central a sustentabilidade, um tema que ganha cada vez mais espaço mídia, e possui suas ações voltadas textos relacionados às temáticas de ecologia, sustentabilidade

Morandini, Andre C.

470

Feasibility Study of a Portable Coupled 3He Detector with LaBr3 Gamma Scintillator for Field Identification and Quantification of Nuclear Material  

E-Print Network [OSTI]

In recent years, there have been several research endeavors to increase the ability to identify and quantify special nuclear material in field measurements. These have included both gamma spectroscopy and neutron coincidence systems...

Strohmeyer, Daniel C.

2010-07-14T23:59:59.000Z

471

PERTES CARACTRISTIQUES DES LECTRONS DANS TlCl, TlBr, Tl I ET CALCUL DES FONCTIONS OPTIQUES ENTRE 3 ET 25 eV  

E-Print Network [OSTI]

diffèrent des halogé- nures alcalins notamment par leur grande constante diélectrique optique et par un

Paris-Sud XI, Université de

472

Biological control of Cl/Br and low sulfate concentration in a 3.5-Gyr-old seawater from North Pole, Western Australia  

E-Print Network [OSTI]

of early life. Insights into the composition of Archaean seawater and hydrothermal fluids can be obtained by direct analysis of fluid inclusions preserved in Archaean sediments and hydrothermal systems. Here, we investigated a suite of well-preserved intrapillow quartz­carbonate pods that formed during oceanic

Rey, Patrice F.

473

180 Br~ves communications -Brevi comunicazioni [Exe~mE~CTIAVOL. XlI[5] 2, 7, 12 und 17 Tage alte PlasmGcytomzellkulturen  

E-Print Network [OSTI]

. The hydrolysate was prepar- ed by hydrolyzing the residue with 6 N HCI and auto- claving at 15 lb pressu

Govindjee

474

07/01/13 L12772 1/40www.planalto.gov.br/CCIVIL_03/_Ato2011-2014/2012/Lei/L12772.htm  

E-Print Network [OSTI]

aperfeiçoamento do ensino, pesquisa e extensão, ressalvados os cargos de que trata o § 11 do art. 108-A da Lei

Floeter, Sergio Ricardo

475

Measurement of the half-lives of ??As and ??Br high Z test of CVC (Standard Model) via superallowed Fermi decay  

E-Print Network [OSTI]

which describe the P-decay spectra. 29 Initial attempts to fit the 30. 5 MeV and 29. 5 MeV As spectra (66AsR44 and 66AsR50) used CURFIT and the four parameter fitting function: t; t, y(tt) = u+ 5 exp( ? ln 2 ? ) + d exp( ? ln2 ? ). c 446 (4. 6...) The results of the 66AsR44 and 66AsR50 fits, table 1, were encouraging in that they agree well with Alburger's (1978) half-life determination (95. 78 + . 39 msec). The percent errors and the ratios s and & indicated that the second term dominated...

Burch, Robert Harry

1988-01-01T23:59:59.000Z

476

Irjg~lL f0~ BrH ~ GE DOCUMENT NO. 79SDS4207 En0nT ~raaOYE  

E-Print Network [OSTI]

. . . . . . . .3-1 3.2 Materials Development ...... 3-2 3.3 Advanced Combustor ... . .... 3-4 3.3.1 Heat Exchanger . . . . . . . . . . . . . 3-5 3.3.4 Heater Head Temperature .. . ... 3-8 3.3.5 Combustor Efficiency . . . .. 3-8 3.4 Magnetic and Performance .. 4-1 4.2.2 Design Trade-offs . . . 4-2 4.3 Proto 2 Component Designs . . 4-12 4.3.1 Combustor

Oak Ridge National Laboratory

477

Estrada Dona Castorina, 110 Rio de Janeiro -Brasil 22460-320 Fone: 55 21 2529 5000/5284 Fax: 55 21 2512 4115 http://www.impa.br  

E-Print Network [OSTI]

Estrada Dona Castorina, 110 Rio de Janeiro - Brasil 22460-320 Fone: 55 21 2529 5000/5284 Fax: 55 21 Atividades Científicas #12;Estrada Dona Castorina, 110 Rio de Janeiro - Brasil 22460-320 Fone: 55 21 2529 Atividades Científicas #12;Estrada Dona Castorina, 110 Rio de Janeiro - Brasil 22460-320 Fone: 55 21 2529

Solodov, Mikhail V.

478

72 communicAtions of tHe Acm | FeBrUAry 2011 | voL. 54 | No. 2 contributedarticles  

E-Print Network [OSTI]

-centric applica- tions (such as schema completion and synonym finding). The second, the Google Deep Web Crawler, at- tempts to surface information from the Deep Web, referring to data on the Web available only Structured data on the Web exists in several forms, including HTML ta- bles, HTML lists, and back-end Deep

Cafarella, Michael J.

480

Generation of the 2Torsion Part of the Brauer Group of a Local Quintic by Quaternion Algebras  

E-Print Network [OSTI]

(Kjk). Below we shall write Br X instead of Br nr (Kjk) keeping in mind this identification. The group

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


481

0 0DPRQH &DSULD D FXUD GL 6FLHQ]D H GHPRFUD]LD  

E-Print Network [OSTI]

0 0DPRQH &DSULD D FXUD GL#12; 6FLHQ]D H GHPRFUD]LD 1DSROL /LJXRUL SS MARCO MAMONE CAPRIA 4XHVWLRQL GL UHVSRQVDELOLWj VFLHQWLILFD Serge Lang è un eminente matematico di origine francese, che ha dato resistenza dell'ortodossia dominante in qualsiasi campo ad accettare, o anche solo DG DFFHWWDUH GL GLVFXWHUH

Mamone Capria, Marco

482

Illegal logging e conflict timber: Strategie per l'Italia e per l'Europa  

E-Print Network [OSTI]

commerciale per l'export del Camerun, ... ma anche della Bosnia, Romania, Serbia, ... #12;Nei paesi europei 79,993 Czech Republic 78,432 Bosnia and Herzegovina 43,460 Romania 43,244 Slovakia 35,372 Bulgaria 22

Pettenella, Davide

483

REGOLAMENTO ed ISTRUZIONI per l'utilizzo delle fotocopiatrici/stampanti/scanner  

E-Print Network [OSTI]

(XEROX 7232) possono essere utilizzate oltre che come fotocopiatrici e scanner, anche come stampanti 7232, che si trova presso la portineria di ingresso al Palazzo San Niccolò può stampare a colori e;FOTOCOPIATRICE STAMPANTE SCANNER XEROX WORKCENTRE 7232 (portineria ingresso) Login: Inserire il proprio numero o

Garulli, Andrea

484

Stampa l'articolo Chiudi 20 maggio 2010  

E-Print Network [OSTI]

termine filosoficamente sinonimo di "essere". Il mondo della tecnologia dell'informazione, forse anche http://www.ilsole24ore.com/art/SoleOnLine4/Tecnologia%20e%20Busin... 1 of 3 21/05/2010 07:07 #12

Floridi, Luciano

485

Principi di governance degli atenei Lorenzo Marrucci Gennaio 2005  

E-Print Network [OSTI]

struttura di governo dei singoli atenei, la cosiddetta "governance" istituzionale. Quasi tutti vi tutti i principali organi collegiali di governo dell'ateneo, senato accademico e consiglio di personale non docente rivestono un ruolo nettamente secondario negli organi di governo, e comunque sono anch

Marrucci, Lorenzo

486

9. Forza e debolezza del governo locale di Tommaso Vitale e Simone Tosi  

E-Print Network [OSTI]

227 9. Forza e debolezza del governo locale di Tommaso Vitale e Simone Tosi 9.1 Quasi un di governo dei soggetti sul territorio. L'inserimento nell'Obbiettivo 2 dei Fondi Strutturali stato sue successive evoluzioni non hanno pressoch mai rag- giunto posizioni di governo. Anche sul lato

Paris-Sud XI, Universit de

487

Sddeutsche Zeitung, 24 ottobre 2009 Battaglia navale con la mafia  

E-Print Network [OSTI]

ormai anche il Commissario UE per l'ambiente Stavros Dimas ha esortato il governo italiano a indagare radioattivi sommersi nel mare. Sarebbe necessaria un'azione rapida del governo. Secondo il deputato al Parlamento Europeo Mario Pirillo "non accettabile" che il governo non abbia ancora reagito dopo un mese dal

Angeleri Hgel, Lidia

488

Esercizio di calcolo numerico Gennaio 2005  

E-Print Network [OSTI]

Esercizio di calcolo numerico Gennaio 2005 Si vogliono determinare le intersezioni fra le curve verificate le ipotesi del teorema degli zeri (f(a)f(b) metodo di bisezione per calcolare lo zero con una approssimazione di 10-6 . Utilizzare anche il metodo di Newton per la determinazione

Russo, Giovanni

489

Scuola Normale Superiore di Pisa Comune di Gibellina Centro Studi e Documentazione sull'Area Elima  

E-Print Network [OSTI]

.Quandodecisiquestononconoscevo,forsepercolpa mia, l'articolo della dott.ssa Stefania De Vido, Erice fortificata, pubblicato su ?Istorivh, il volume Vido, e del prof. Alessandrì, che gentilmente me lo spedì da Lecce qualche settimana fa, lessi, e anche, in particolare per Erice. In questo articolo la De Vido si occupa

Abbondandolo, Alberto

490

Allegato A) SERVIZI WEB  

E-Print Network [OSTI]

Allegato A) SERVIZI WEB Dottorato di ricerca Modalità per la stampa del modulo di pagamento e della bisogna: 1. connettersi alla pagina web: http://www.uniroma1.it/didattica/sportelli/infostud (sulla stessa pagina web sono illustrati anche i requisiti tecnici necessari per effettuare correttamente le operazioni

Guidoni, Leonardo

491

RECAPITI AZIENDALI Apple m EducationtalentIT@apple.com  

E-Print Network [OSTI]

RECAPITI AZIENDALI Apple m EducationtalentIT@apple.com 1 www.apple.com/jobs/it/retail CHI SIAMO Gli Apple Store non sono soltanto negozi tra i più innovativi al mondo, ma anche tra i più dinamici e, coinvolgenti, collaborative e dinamiche, con una spiccata passione per Apple e i suoi prodotti. OPPORTUNIT?

De Cindio, Fiorella

492

Andres MILLN, Pedro ABELLN, Ignacio RIBERA, David SNCHEZ & Josefa VELASCO  

E-Print Network [OSTI]

were mountain streams in the NW of the basin, which are also of high conservation interest for other or hypersaline streams, which are extremely rare in an European (or even global) context, are not considered'interno della regione ibero-baleare, c'è anche una chiara divisione nord-sud, con una suddivisione secondaria

Murcia, Universidad de

493

La scuola geologica Pisana Pietro Corsi  

E-Print Network [OSTI]

Scienze naturali aveva eletto Parigi a proprio punto di riferimento. Come è ampiamente illustrato da una, avevano fatto di Parigi la capitale delle Scienze naturali della seconda metà del Settecento. Se da un reperti naturalistici. Non a caso, Parigi era divenuta anche la capitale europea del fiorente commercio di

Paris-Sud XI, Université de

494

Siamo un gruppo di studenti dell'Universit degli Studi di Milano delle Facolt di Biologia, Chimica, Fisica, Medicina e Chirurgia che frequentano le lezioni presso il Polo Didattico di Citt Studi in via Celoria. Pur  

E-Print Network [OSTI]

/05/2013 al 28/05/3013), Arezzo AR (dal 31/05/2013 al 10/06/2013) ed è inoltre in programma anche a Parigi e Los Angeles ed in Canada. Jerome Lejeune (Montrouge 13 aprile 1926- Parigi 3 aprile 1994) è stato medico pediatra, genetista e ricercatore presso l'Hôpital Necker Enfants-Malades di Parigi. La sua

De Cindio, Fiorella

495

Description T7Tag Affinity Purification KIt 69025-3 The T7Tag Affinity Purification Kit is designed for rapid immunoaffinity purification of  

E-Print Network [OSTI]

. The beads can be used in either batch or col- umn modes and can be recycled a minimum of five times without·Tag peptide (given appropriate insertion of target sequences): pET-3a-d pET-21a-d(+) pGEMEX (Promega) pET-3xa-c pET-23a-d(+) pRSET (Invitrogen) pET-5a-c pET-24a-d(+) pET-9a-d pET-28a-c(+) pET-11a-d p

Lebendiker, Mario

496

Petroleum Technology (AS) Curriculum Guide Student Name: PS#  

E-Print Network [OSTI]

Petroleum Technology (AS) ­ Curriculum Guide Student Name: PS# GENERAL EDUCATION REQUIREMENTS ENG Introduction to Petroleum Industry PET 0102 Environment and Safety PET 0103 Introduction to Petroleum Geology PET 0201 Petroleum & Natural Gas Chemistry PET 0203 Oil & Gas Gathering & Transportation PET 0204 Well

Jiang, Huiqiang

497

Analysis of the mouse embryonic stem cell regulatory networks obtained by ChIP-chip and ChIP-PET  

E-Print Network [OSTI]

Background: Genome-wide approaches have begun to reveal the transcriptional networks responsible for pluripotency in embryonic stem (ES) cells. Chromatin Immunoprecipitation (ChIP) followed either by hybridization to a ...

Mathur, Divya

498

PET exam A 424304 20-032013 Short answers 111. Ex = Ex (O2) + Ex(N2) + Ex (unmix)  

E-Print Network [OSTI]

,7 = 3018,0 kJ/mol L Ex mix gases = 6*R*T*ln (½) = -10,1 kJ/mol L losses = 998,0 + 2678,9 ­ 3018,0 + 10. outsideoutside outside outside glass window outside outside outside window inside A R FA R A R Eb R J R J R Eb 11) · (h - T·s) = (O2) ·(cp· T - T·cp·ln(T/T) + R·T·cp·ln(p/p) ) ---------- T effect ----- ---- p effect

Zevenhoven, Ron

499

Feasibility and electromagnetic compatibility study of the ClearPEM front-end electronics for simultaneous PET-MR imaging  

E-Print Network [OSTI]

electromagnetic interference (EMI) effects between both systems were evaluated on a 7 T magnet by characterizing. Materials and methods The mutual electromagnetic interference tests between Clear- PEM front-end electronics

Dalang, Robert C.

500

396 IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 21, NO. 4, APRIL 2002 Spatiotemporal Reconstruction of List-Mode PET  

E-Print Network [OSTI]

. List-mode data can be binned into sinograms, allowing frame durations to be deter- mined after by the National Cancer Institute under Grant R01 CA59794. The Associate Editor responsible for coordinating that are based on assumptions about the physiological processes generating the data, e.g., blood activity curves

Leahy, Richard M.