NIST Technicalendar September 3 to September 7, 2007 The NIST Technicalendar is issued each Friday. All items MUST be submitted electronically from this web page by 12:00 NOON each Wednesday unless otherwise stated in the NIST Technicalendar. The address for online weekly editions of the NIST Technicalendar and NIST Administrative Calendar is: http://www.nist.gov/tcal/.
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In this Issue: Meetings at NIST Meetings Elsewhere Announcements Talks by NIST Personnel NIST Web Site Announcements NIST Administrative Calendar (current)   NIST Vacancy Announcements (current)

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No Scheduled Events

2:00 PM - Thermodynamics and kinetics of grain boundaries in ultra-fine grained copper produced by severe plastic deformation

10:45 AM - Probing Nanoscale Structures - The SANS Toolbox
12:00 PM - The Effect of Equal Channel Angular Pressing on Hydrogen Storage Properties of Mg-Based Alloys

10:30 AM - Rotational motion of micron-sized beads and potential biological applications
10:45 AM - Magnetic Fluctuations Close to an Antiferromagnetic Quantum Critical Point as Observed in CeNi2Ge2
11:00 AM - Quantitative Methods in Medical Imaging

10:30 AM - Quantum Money, Teleportation and Computation - New Mysteries from the Quantum World
11:00 AM - Redetermination of the Boltzmann Constant at LNE-INM/CNAM
2:00 PM - Nanoparticles are different: characterization of magnetic nanoparticles by X-ray absorption spectroscopy

9/3 -- MONDAY

No Scheduled Events

9/4 -- TUESDAY

2:00 PM - METALLURGY DIVISION SEMINAR : Thermodynamics and kinetics of grain boundaries in ultra-fine grained copper produced by severe plastic deformation
Eugen Rabkin , Technion-Israel Institute of Technology , Haifa, Israel.
Materials Bldg, Rm. B351. (NIST Contact: Leonid Bendersky , 301-975-6167, leonid.bendersky@nist.gov)


9/5 -- WEDNESDAY

10:45 AM - NIST CENTER FOR NEUTRON RESEARCH SEMINAR: Probing Nanoscale Structures - The SANS Toolbox
Small-Angle Neutron Scattering (SANS) is an effective characterization tool for nanoscale structures. An extensive effort has been expanded by this speaker to put together a 500 page textbook on the SANS technique and its application to the following areas of research: (1) Polymers, (2) Complex Fluids, (3) Biology and (4) Materials Science. This work is the culmination of over 20 years of SANS work mostly at the NIST Center for Neutron Research. This seminar will introduce the new textbook, go over an outline of its content, and present some selected topics. Content includes details valuable to SANS users as well as to SANS practitioners. The first few chapters are helpful to neutron scatterers in general. Methods of SANS data analysis and modeling are described at the tutorial level. A great deal of SANS data are presented and analyzed. The USANS instrument and the VSANS technique are also discussed. A copy of the pdf file for this textbook will be available to those attending the seminar.
Boualem Hammouda , NIST Center for Neutron Reserch, . , .
Building 235, Rm. E100. (NIST Contact: Boualem Hammouda, 301-975-3961, boualem.hammouda@nist.gov)

12:00 PM - METALLURGY DIVISION SEMINAR : The Effect of Equal Channel Angular Pressing on Hydrogen Storage Properties of Mg-Based Alloys
Eugen Rabkin , Technion-Israel Institute of Technology , Haifa , Israel .
Materials Bldg, Rm. B351. (NIST Contact: Leonid Bendersky, 301-975-6167, leonid.bendersky@nist.gov )


9/6 -- THURSDAY

10:30 AM - OPTICAL TECHNOLOGY DIVISION AND MMBI SEMINAR: Rotational motion of micron-sized beads and potential biological applications
Single molecule pulling experiments using micron-sized beads have provided key insights into the mechanism of biological macromolecular machines like motor proteins. Most of these experiments focus on linear motion. Adapting these techniques to measure rotation and torque should open up new ways to investigate properties of macromolecules and their assemblies. Detecting linear movements < 10 nm has been technically challenging but crucial to understanding molecular mechanisms. Sensing small rotations could be much easier since a small rotation in a single molecule tethering a micron-sized bead to a surface should lead to large displacements of markers on the bead. I will describe our attempts to manipulate and measure rotational motion of micron-sized beads and attach them to biological molecules whose rotational motion is of interest.
Jonathan Silver , NIAID (National Institute of Allergy and Infectious Diseases), Bethesda, MD.
220 Bldg, Rm B341. (NIST Contact: Lori Goldner, 301-975-3791, lori.goldner@nist.gov)

10:45 AM - NIST CENTER FOR NEUTRON RESEARCH SEMINAR: Magnetic Fluctuations Close to an Antiferromagnetic Quantum Critical Point as Observed in CeNi2Ge2
Strong electron-electron correlations in solids are responsible for a variety of interesting physical properties in many transition metal and rare earth compounds. The so called heavy fermion behavior of 4f and 5f systems, where we can observe enormous effective mass enhancement in the thermodynamic properties at low temperatures, has attracted much interest in the last 2 decades. Most of the compounds, in the absence of magnetic ordering, are described under the framework of fermi liquid theory, where the hybridization of the conduction electrons with the strongly correlated f states forms heavy quasiparticles. However there exist intermetallic systems which exhibit strong deviation from the heavy fermion-fermi liquid behavior. The origin of this non-fermi liquid is under investigation. A mechanism of non-fermi liquid is critical spin fluctuations near a quantum critical point where the ground state changes from non magnetic phase to magnetic ordered one and this can be studied by neutron scattering To investigate the non-fermi liquid behavior, neutron scattering spectra, in addition to thermodynamic and transport properties, of the heavy fermion compound CeNi2Ge2 will be presented to characterize the magnetic correlations and dynamics close to antiferromagnetic quantum critical point.
Bilal Zoghbi , Kent State University, .
Building 235, Rm. E100. (NIST Contact: Tom Gentile, 301-975-5431, thomas.gentile@nist.gov)

11:00 AM - BIOMEDICAL IMAGING SEMINAR: Quantitative Methods in Medical Imaging
Rick Avila , Kitware, Inc.
Technology Bldg, Rm. B157. (NIST Contact: Charles Fenimore, 301-975-2428, fenimore@nist.gov)


9/7 -- FRIDAY

10:30 AM - NIST COLLOQUIUM SERIES : Quantum Money, Teleportation and Computation - New Mysteries from the Quantum World
In the world of quantum mechanics, the Heisenberg Uncertainty Principle is a key feature that for many years was thought of as a limitation or disadvantage. Physicists have recently come to realize that quantum uncertainty can in fact be a useful resource to encrypt information securely, create quantum money that cannot be counterfeited, teleport quantum states from one place to another, and build quantum computers that can solve certain problems exponentially faster than classical computers. This talk is an elementary introduction to these ideas and describes current experimental attempts to construct the quantum bits that might someday form the building blocks of a practical quantum computer. NOTE: This talk requires no prior knowledge of quantum mechanics.
Steven Girvin , Departments of Physics and Applied Physics, Yale University.
Administration Building, Red Auditorium. (NIST Contact: Kum Ham, 301-975-4203, kham@nist.gov)
Special Assistance Available

11:00 AM - PROCESS MEASUREMENTS DIVISION SEMINAR: Redetermination of the Boltzmann Constant at LNE-INM/CNAM
Laurent Pitre , LNE-INM/CNAM, Saint Denis, France.
221 Bldg, Rm. A366. (NIST Contact: Mike Moldover, 301-975-2459, mmoldover@nist.gov)

2:00 PM - ELECTRON AND OPTICAL PHYSICS DIVISION SEMINAR: Nanoparticles are different: characterization of magnetic nanoparticles by X-ray absorption spectroscopy
Franz Hormes , Professor, Center for Advanced Microstructures and Devices (CAMD), Louisiana State University, Baton Rouge, LA, hormes@lsu.edu.
Radiation Physics Building, Rm. B105. (NIST Contact: Uwe Arp, 301-975-3233, uwe.arp@nist.gov)


ADVANCE NOTICE

9/10/07 11:00 AM - POLYMERS DIVISION SEMINAR: STUDY OF DRAG REDUCING POLYMERS AND MECHANISMS OF THEIR INTRAVASCULAR EFFECT
Blood-soluble drag reducing polymers (DRPs) have been shown to produce significant beneficial effects on blood circulation, including an increase in tissue perfusion and tissue oxygenation and a decrease in vascular resistance, when injected in blood at minute concentrations in various animal models of normal and especially pathological circulation. DRPs have potential applications in treating tissue hypoperfusion caused by cardiovascular disease, stroke, peripheral vascular disease, diabetes, and other illnesses. To help to translate this novel therapy from the lab bench to the clinic, effective, biocompatible polymers which can be easily produced must be identified. Furthermore, elucidation of the mechanisms of their observed effects on blood circulation is extremely important for future medical applications of DRPs
Joie Marhefka , PhD. Bio - Engineering, Pittsburgh, PA, marhefkaj@upmc.edu.
224 Bldg, Rm. A312. (NIST Contact: Kalman Migler, 301-975-4876, kalman.migler@nist.gov)

9/10/07 1:15 PM - POLYMERS DIVISION SEMINAR: Physical and Optical Properties of Single-Walled Carbon Nanotubes From "Single-Molecule" Near-Infrared Fluorescence Microscopy Measurements
Fluorescence from semiconducting single-walled carbon nanotubes has become an exceptionally powerful and inexpensive tool to determine (n,m)-distributions in highly heterogeneous SWNT suspensions. Observing individual nanotubes presents a number of advantages over the bulk methods of characterization, since it allows access to each individual nanoparticle to reveal its intrinsic physical and optical properties. In this presentation, a number of research directions which originated from our ability to “see” isolated SWNTs will be described. Sub-diffraction SWNT lengths can be determined by analyzing their translational and rotational dynamics in solution. Observing nanotube’s bending dynamics allows measuring the persistence length of individual SWNTs as a function of their diameter. Quantifying the absolute photoluminescence intensity from particular nanotube species provides information on absorptivities and intrinsic fluorescence quantum yields of each (n,m)-structure. SWNTs immobilized in polymeric matrices or gels offer new directions to explore. For instance, within a tight-binding (TB) theoretical framework it has been predicted that nanotube’s emission maxima shift proportionally to strain, yet no experimental report has been able to demonstrate satisfactory agreement with this theory. Our experimental observations of emission maxima from SWNTs embedded in polymethylmetacrylate film for the first time show a close match with a TB model. Finally, I will also report on our most recent achievements on detecting individual molecular reactions occurring at a nanotube’s sidewalls, and far-field optical imaging of individual SWNTs with sub-wavelength resolution in unprecedented detail.
Dr. Dmitri A. Tsyboulski , Dept. of Chemistry, Richard E. Smalley Institute for Nanoscale Science and Technology, Rice Univ, Houston, TX.
Polymer Building, Room A312. (NIST Contact: Erik Hobbie, 301-975-6774, erik.hobbie@nist.gov)

9/21/07 10:30 AM - NIST COLLOQUIUM SERIES : Improving the Voting Process: A Multi-Disciplinary and Politicized Problem
The current problems with the voting process are presented in the context of the division of responsibilities between the federal and state governments. Developments beginning in the late 19th century are described, involving voting technology, improved ballot secrecy, and elimination of paper ballots because of extensive fraud. The difficulties resulting from the use of computing technology, beginning in the 1960s, such as fear of software fraud and ambiguity of results due to “hanging chads,” are elaborated. The ground-breaking NBS reports of 1975 and 1988 are reviewed for their recommendations and anticipation of present problems. Current issues include the questions of software correctness, testing of commercial off-the-shelf software, independent verification with and without paper trails, voter registration integrity, and partisanship at the highest levels of supposedly evenhanded administration.
Roy Saltman , Author and Alumnus, NIST Computer Systems Laboratory.
Administration Building, Red Auditorium. (NIST Contact: Kum Ham, 301-975-4203, kham@nist.gov)
Special Assistance Available

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MEETINGS ELSEWHERE


9/3 -- MONDAY

No Scheduled Events

9/4 -- TUESDAY

No Scheduled Events

9/5 -- WEDNESDAY

No Scheduled Events

9/6 -- THURSDAY

No Scheduled Events

9/7 -- FRIDAY

No Scheduled Events

ADVANCE NOTICE

9/11/07 8:30 AM - BIOMETRIC CONSORTIUM CONFERENCE (BC2007)
The BC2007 is a multi-track conference that will address the latest trends in biometrics research, development and application on biometric technologies. This conference addresses the important role that biometrics can play in the identification and verification of individuals in this age of heightened security and privacy by examining biometric-based solutions for homeland security (airport security, travel documents, visas, border control, prevention of ID theft) as well as the utilization of biometrics in other applications such as point of sale and large-scale enterprise network environments.

The BC2007 is being held in conjunction with and co-located with the 2007 Biometrics Technology Expo hosted by AFCEA.
Dr. John Marburger, III , Science Advisor to the President and Director of the Office of Science and Technology Policy. Mr. David Wennergren , Deputy Asst Secretary of Defense for Information Mgmt, Integration & Technology and DoD Deputy CIO. The Honorable James W. Ziglar
President and Chief Executive Officer, Cross Match Technologies, Inc.

Featured DoD Speaker:
Mr. William Gravell
President, Diogenes Group LLC
Bldg, Rm. .

Baltimore Convention Center Baltimore, Maryland. (NIST Contact: Sara Caswell, 301-975-4634, bc2007info@nist.gov) http://www.nist.gov/bc2007


10/4/07 10:00 AM - NIST/DARPA WORKSHOP ON COMPACT X-RAY SOURCES BASED ON INVERSE COMPTON SCATTERING
Ronald Ruth , President and Chief Scientist, Lyncean Technologies, Inc.. David Moncton , Director, MIT Nuclear Reactor Laboratory. W.J. Brown, MIT Lincoln Laboratory, F.E. Carroll Jr, CEO & Chief Medical Officer, MXISystems, Inc., M. Richter, Physikalisch-Technische Bundesanstalt PTB, M.Bech, Swiss Light Source, PSI
Bldg, Rm. .
The Executive Conference Center (ECC), 3601 Wilson Boulevard, Suite 600, Arlington, Virginia 22201 . (NIST Contact: Uwe Arp, 301-975-3233, uwe.arp@nist.gov) http://physics.nist.gov/Divisions/Div841/Gp2/darpaWorkshop.html

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TALKS BY NIST PERSONNEL

KLOUDA, G. : INVESTIGATING THE BACKGROUND OF A 1-CM 3 QUARTZ GAS PROPORTIONAL COUNTER.
16th International Conference on Radionuclide Metrology and its Applications, Cape Town, South Africa , 9/4.

BURNS, T. : MEASUREMENT AND MODELING OF RAPID SHEAR IN HIGH-SPEED MACHINING.
SHEAR07 International Symposium on Shear Behaviors in Materials Plasticity, France, 9/5.

ARONOFF, M. : CREATING FOCUS: AUGMENTED REALITY FOR BETTER STANDARDS.
SIMA, AMSANT Lab (220/A108), 9/5.

EPPELDAUER, G. : DETECTOR-BASED COLOR TEMPERATURE STANDARD.
CCG Fall Meeting, Navy Primary Standards Laboratory, San Diego CA, 9/5.

EPPELDAUER, G. : SPECTRAL AND GEOMETRICAL CONSIDERATIONS OF TEST-SET AND GOGGLE CALIBRATIONS.
CCG Fall Meeting, Navy Primary Standards Laboratory, San Diego CA, 9/5.

EPPELDAUER, G. : DEVELOPMENT AND CALIBRATION OF INFRARED RADIOMETER STANDARDS TO 2.5 MICROMETERS.
CCG Fall Meeting, Navy Primary Standards Laboratory, San Diego CA, 9/5.

EPPELDAUER, G. : DEVELOPMENT OF LOW NEP PYROELECTRIC RADIOMETERS.
CCG Fall Meeting, Navy Primary Standards Laboratory, San Diego CA, 9/5.

BEVERSLUIS, M. : NANO-OPTICS FOR CHEMICAL AND MATERIALS CHARACTERIZATION.
3M Corporation, St. Paul, MN, 9/6.

POWELL, C. : CALCULATIONS OF ELECTRON STOPPING POWERS FOR ELEMENTAL SOLIDS AND COMPOUNDS.
European Conference on Applications of Surface and Interface Analysis, Brussels, Belgium, 9/9.

POWELL, C. : EVALUATION OF UNCERTAINTIES IN XPS INTENSITIES ASSOCIATED WITH DIFFERENT TECHNIQUES AND PROCEDURES FOR BACKGROUND SUBTRACTION.
European Conference on Applications of Surface and Interface Analysis, Brussels, Balgium, 9/9.

POWELL, C. : DISTINGUISHABILITY OF N COMPOSITION PROFILES IN SION FILMS ON SI BY ANGLE-RESOLVED XPS.
European Conference on Applications of Surface and Interface Analysis, Brussels, Belgium, 9/9.

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ANNOUNCEMENTS

VISITOR REGISTRATION FOR NIST EVENTS
Because of heightened security at the NIST Gaithersburg site, members of the public who wish to attend meetings, seminars, lectures, etc. must first register in advance. For more information please call or e-mail the "NIST Contact" for the particular event you would like to attend.
NIST Contact: . ., ., .

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NIST WEB SITE ANNOUNCEMENTS

No Web Site announcements this week.

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For more information, contact Ms. Sharon Hallman, Editor, Stop 2500, National Institute of Standards and Technology, Gaithersburg MD 20899-2500; Telephone: 301-975-TCAL (3570); Fax: 301-926-4431; or Email: tcal@nist.gov.

All lectures and meetings are open unless otherwise stated.

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