NIST Technicalendar
UNITED STATES DEPARTMENT OF COMMERCE
Technology Administration
National Institute of Standards and Technology
Gaithersburg, Maryland 20899-0001

APRIL 6 TO APRIL 10, 1998
In this Issue:
MEETINGS AT NIST
MEETINGS ELSEWHERE
TALKS BY NIST PERSONNEL
ANNOUNCEMENTS
NIST WEB SITE ANNOUNCEMENTS
 Also available:
Admin. Calendar (latest issue)NIST Staff Only
NIST Vacancy List (latest issue)
Previous Issues of the Technicalendar
Quick Technicalendar (this issue)NIST Staff Only
The NIST Technicalendar, issued each Friday, covers scheduled events which are of interest primarily to the NIST staff 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://nvl.nist.gov/pub/nistpubs/calendars/. Requests for copies of this calendar should be sent to Ms. Sharon Mingo, Editor, Building 820, Room 125, National Institute of Standards and Technology, Gaithersburg, MD 20899-0001, (Telephone: 301-975-3570; FAX: 301-926-4431; or E-mail: sharon.mingo@nist.gov).

All lectures and meetings are open unless otherwise stated.


MEETINGS AT NIST
CIRMS' MEASUREMENTS AND STANDARDS FOR INTRAVASCULAR BRACHYTHERAPY WORKSHOP

Multiple Speakers
NIST, Industry, National Laboratories, Medical Centers.


Monday, April 6, 1998, 8:30AM, - Tuesday, April 7, 1998 Rm. C301, Radiation Physics Bldg..

The Medical Applications Subcommittee of the Council on Ionizing Radiation Measurements and Standards (CIRMS) is holding a workshop to address the measurements and standards issues associated with the use of radioactive sources to prevent restenosis following balloon angioplasty procedures. The purpose of the workshop is to facilitate a discussion in the measurement community of the standards and measurement needs relating to radioactive seeds, wires, stents, fluid-filled catheters, and x-ray sources used in the emerging field of intravascular therapy.



For further information contact Bert Coursey, 301-975-5584, bert.coursey@nist.gov
Nanokelvin Science Seminar

VORTEX STABILITY AND CRITICAL ANGULAR VELOCITIES IN DILUTE TRAPPED BOSE-EINSTEIN CONDENSATES

Alexander S Fetter
Stanford University. Stanford, CA


Tuesday, April 7, 1998, 3:00PM, - Tuesday, April 7, 1998 Rm. B105, Radiation Physics Building.

Recent experimental demonstrations of Bose-Einstein condensation in cold dilute trapped alkali gases have created an exciting new field. Together, the harmonic trap and interparticle interactions yield new and different physics from the more familiar uniform dilute Bose gas. The condensate remains irrotational for slow rotation speeds, but a vortex eventually appears and can remain metastable even for somewhat reduced rotation speeds. Above a higher critical angular velocity, however, the system becomes dissipative, reverting to the normal (noncondensed state).



For further information contact Patricia Elspas, 301-975-3708, patricia.elspas@nist.gov

Special Assistance Available
Optical Technology Division Seminar

SPECTROSCOPY OF SEMICONDUCTOR QUANTUM DOTS BY NEAR-FIELD OPTICAL MICROSCOPY AND DEVELOPMENT OF AN APERTURED METALLIC PROBE

Takuya Matsumoto
Tokyo Institute of Technology. Japan


Wednesday, April 8, 1998, 10:30AM, Room B165, Physics Building.

Photoluminescence spectra of single InGaAs quantum dots, and spatial variations in the PL spectrum were measured by a low temperature near-field optical microscope. The spatial resolution was 100 nm. A novel probe with a metallic protrusion surrounded by an aperture has been developed to increase the resolution and the light excitation and collection efficiency further. A probe having a nanometric metallic particle at its apex has also been developed to increase the optical near-field intensity by localized plasmon excitation.



For further information contact L. Goldner, 301-975-3792, lori@bruce.nist.gov
DATABASE OR CANADIAN-U.S. FOOD AND AGRICULTURAL REFERENCE MATERIALS

Dr. Milan Ihnat
Agriculture and Agri-food Canada. Summerland, BC


Thursday, April 9, 1998, 10:00AM, Room A322, Chemistry Building.



For further information contact V. Iyengar, 301-975-6284, -
DESIGN OF EXPERIMENTS

Eric Lagergren
Statistical Engineering Division, NIST, Gaithersburg, MD.


Thursday, April 9, 1998, 9:00AM, Lecture Room B, Administration Building.

(Later lectures on April 16, 23, 30, 9:00 a.m.-12:00 noon, Lecture Rooms A, B, and C, respectively.)

This 12 hour workshop covers the fundamental principles and techniques of efficient experiment design--a rigorous strategy for conducting an experimental investigation. A "good" design yields unambiguous scientific and engineering conclusions with a minimal amount of experimental effort. The workshop covers specific designs that have proven best for screening out the most important parameters from a large number of potential parameters and for converging to an optimal operating condition starting from a "best guess." Registration is limited. The registration fee of $125 includes the textbook "Statistics for Experimenters," by Box, Hunter and Hunter. To register, submit a Request for Training Memo to Pat O'Connor, Room A123, Administration Building, patricia.oconnor@nist.gov, by April 3, 1998.



For further information contact Eric Lagergren, 301-975-3245, eric.lagergren@nist.gov
Polymers Division Distinguished Lecturer Series

MANIPULATION OF ADHESION WITH BIOMOLECULAR AMPHIPHILES

Prof. Matthew Tirrell
Professor and Head, Chemical Engineering and Materials Science, University of Minnesota. Minneapolis, MN


Thursday, April 9, 1998, 11:00AM, Rm. B245, Bldg. 224.

Building interfaces with tailored adhesion properties demands molecules that position themselves effectively and new characterization tools to measure interfacial properties. Amphiphilic molecules provide many avenues for delivering and attaching to interfaces functional units designed to manipulate adhesion. This talk will describe some avenues to assemble interfaces with amphiphilic molecules to tailor adhesion in polymeric and biomolecular systems.



For further information contact Freddy Khoury, 301-975-6753, freddy.khoury@nist.gov
NIST Colloquium Series

FROM THE QUANTUM HALL EFFECT TO THE SINGLE ELECTRON TRANSISTOR

Klaus von Klitzing
1985 Nobel Laureate in Physics, Max Planck Institute for Solid State Physics (Stuttgart).


Friday, April 17, 1998, 10:30AM, Green Auditorium, Administration Bldg.

Both the quantum Hall effect and single electron tunneling are phenomena important for metrology and high precision measurements. The connection between a two-dimensional electron system in a magnetic field (quantum Hall device) and a one-dimensional electron system without magnetic field (quantum point contact) will be discussed. Recent measurements of the microscopic properties of a quantum Hall system using a single electron transistor as a sensitive electrometer with high spatial resolution have led to a picture of one-dimensional channels for explaining the quantum Hall effect. The first direct observations of the edge channels will be presented. Dr. von Klitzing is the discoverer of the quantum Hall effect, the basis for practical representations of the SI ohm throughout the world



For further information contact Vicki Glennie, 301-975-4203, vicki.glennie@nist.gov
Colloquia are videotaped and available in the NIST Res Lib

Special Assistance Available
ZOOMABLE USER INTERFACES (ZUIS)

Dr. Benjamin B. Bederson
Assistant Professor of Computer Science, The University of Maryland,. College Park, MD


Monday, May 4, 1998, 11:00AM, Room B142, Technology Building.

Pad++ is a zoomable user interface designed for interactive graphical data creation and browsing. It takes the spatial metaphor standard from the computer window desktop interface one step further by incorporating the concept of scale. Pad++ is a two-dimensional surface that acts like a sketchpad, but is orders of magnitude larger in extent and resolution, allowing information to be created not only at any location, but at any size as well. This talk will describe and demonstrate how we are using zooming for different kinds of interactions and visualizations.



For further information contact Sharon Laskowski, 301-975-4535, sharon.laskowski@nist.gov
X-RAY MICROSCOPY OF SYNTHETIC AND NATURAL POLYMERS: TOWARD CHEMICAL SPECIATION AT 10 NM SPATIAL RESOLUTION

N/A N/A
N/A.


Monday, May 11, 1998, 9:00AM, - Tuesday, May 12, 1998 Lecture Rm. B, Administration Bldg.

This workshop seeks to bring together accomplished practitioners in the field of x-ray microscopy, particularly those characterizing polymers, with leading polymer scientists from industry, academia, government and non-profit laboratories. The goal of the workshop is to assesses the research opportunities in polymer science afforded by x-ray microscopy techniques and to evaluate the technological and scientific areas that would provide the most impact in the field of polymer science.

We intend that the workshop will result in a "road-map" for the future course of the field of polymer x-ray microscopy. This relates in particular to both the planned x-ray microscope at the Advanced Photon Source, which would be dedicated to polymer science, and the future development of the x-ray microscopy facilities at the National Synchrotron Light Source. This workshop will be a major event for this growing field and should have a lasting impact on its future course. This workshop will also be the first time that present practitioners of polymer x-ray microscopy gather as a group to exchange ideas about their experiments and technological problems and successes.

http://www.nist.gov/public_affairs/confpage/980511a.htm

For further information contact Carl Zimba, 301-975-6881, zimba@nist.gov
4/6--MONDAY 10:30AM 891 - MATHEMATICAL AND COMPUTATIONAL SCIENCES DIVISION SEMINAR: "COMPaS: PC-BASED SMP CLUSTER AND ITS EXPERIENCE," M. . Sato, Chief, Real World Computing Partnership, Japan. Rm. 618, Bldg 820. (NIST contact: Roldan Pozo, 301-975-4317, roldan.pozo@nist.gov.)
4/6--MONDAY 10:30AM CTCMS SEMINAR SERIES: "Generic features of solidification into viscous melts," J. . Bechhoefer, Professor, Simon Fraser University, Canada. Rm. A366, Bldg 223. (NIST contact: Adam Powell, 301-975-4936, adam.powell@nist.gov.) http://www.ctcms.nist.gov/~powell/CTCMSeminar/bech.html
4/7--TUESDAY 10:45AM 856 - NIST CENTER FOR NEUTRON RESEARCH SEMINAR: "Rhodium Oxides in Unusual Oxidation States," B. A. Reisner, University of California, Berkeley, . Rm. E100, Bldg 235. (NIST contact: Brian Toby, 301-975-4297, brian.toby@nist.gov.)
4/7--TUESDAY 10:30AM CTCMS SEMINAR SERIES: "New Results in Percolation," D. . Stauffer, Professor, University of Cologne, Cologne, Germany. Rm. A366, Bldg 223. (NIST contact: Adam Powell, 301-975-4936, adam.powell@nist.gov.) http://www.ctcms.nist.gov/~powell/CTCMSeminar/stauf.html
4/7--TUESDAY 1:30PM 838 - PHYSICAL AND CHEMICAL PROPERTIES DIVISION SEMINAR: "Simulations Involving Long Chain Molecules," R. . Mountain, and, J. . Slusher, Physical and Chemical Properties Division, NIST Gaithersburg, MD. Rm. A366, Physics Bldg.. (NIST contact: R. Mountain, 301-975-2484, raymond.mountain@nist.gov.)
4/9--THURSDAY 10:45AM 856 - NIST CENTER FOR NEUTRON RESEARCH SEMINAR: "Polymer Dynamics in Polyethylene Melts," S. . Rathgeber, University of MD, Rm. E100, Bldg. 235. (NIST contact: Dan Neumann, 301-975-5252, dan@rrdjazz.nist.gov.)
4/9--THURSDAY 1:30PM PROCESS SENSING GROUP SEMINAR: "DNA and Protein Adsorption on Self-Assembled Fluid Layers," N. . Dan, University of Delaware, Dept. of Chemical Engineering, Rm. A366, Bldg. 221. (NIST contact: Michael Tarlov, 301-975-2058, mtarlov@nist.gov.)
4/9--THURSDAY 2:00PM 844 - OPTICAL TECHNOLOGY DIVISION SEMINAR: "Dipolar Solvation Dynamics and Intramolecular Electron Transfer," J. . Gardecki, Dept. of Chemistry, Pennsylvania State University, Rm. B165, Bldg 221. (NIST contact: Edwin Heilweil, 301-975-2370, edwin.heilweil@nist.gov.)


MEETINGS ELSEWHERE
4/6--MONDAY 10:00AM NAVY CENTER FOR APPLIED RESEARCH IN ARTIFICIAL INTELLIGENCE (NCARAI) SEMINAR: "Ten Myths of Multimodal Interaction," S. Oviatt, Center for Human-Computer Communication, Oregon Graduate Institute of Science and Technology, Portland, OR. NCARAI Conf. Rm., Bldg. 256, Bolling AFB, Washington, DC . (For further information contact: - -, 202-404-7036, -.) http://www.aic.nrl.navy.mil/seminars/
4/7--TUESDAY 2:00PM UNIV. OF MARYLAND (UMD) ORGANIC (AND RELATED) CHEMISTRY SEMINAR: "Chemistry of Taxoid Anticancer Agents at the Biomedical Interface," I. Ojima, SUNY, Stony Brook, NY. Marker Rm. 1325, UMD, College Park, MD . (For further information contact: S. Rokita, 301-405-1816, sr101@umail.umd.edu.) http://www.chem.sunysb.edu/faculty/ojima/homepage.html
4/7--TUESDAY 11:00AM UNIV. OF MARYLAND (UMD) BIOCHEMISTRY DEPT. SEMINAR: "TBA," K. Wang, Lab. of Physical Biology, NIAMS/NIH, Bethesda, MD. Rm. 1325, Chemistry Bldg., UMD, College Park, MD . (For further information contact: - -, -, -.)
4/8--WEDNESDAY 4:15PM GEORGETOWN UNIV. (GU) CHEMISTRY DEPT. SEMINAR: "Synthesis and Properties of Soluble Rigid-Rod Polymers: Hairy PBO," R. Tarkka, GU, Reiss 262, GU, Washington, DC . (For further information contact: Prof. Matile, 202-687-6362, -.)
4/8--WEDNESDAY 4:00PM UNIV. OF MARYLAND (UMD) CHEMICAL PHYSICS/PHYSICAL CHEMISTRY SEMINAR: "TBA," D. Coker, Boston Univ., MA. Rm. 1325, Chemistry Bldg., UMD, College Park, MD . (For further information contact: D. Thirumalai, 301-405-4803, -.)
4/9--THURSDAY 4:00PM TIGR, NRC/NAS/DOE DISTINGUISHED LEADERS IN THE LIFE SCIENCES SEMINAR: "TBA," F. Bloom, The Scripps Research Institute, Auditorium, NAS, Washington, DC . (For further information contact: Conference Office, 301-838-3515, -.)
4/9--THURSDAY 4:00PM CATHOLIC UNIV. OF AMERICA PHYSICS DEPT. SEMINAR: "Physics in Finance," M. Janjusevic, Wall Street/Chase Manhattan Bank, Rm. 106, Hannan Hall, The Catholic Univ. of America, Washington, DC . (For further information contact: Z. Bucalo, 202-319-5317, 73bucalo@cua.edu.)


TALKS BY NIST PERSONNEL
HUANG, P. H. : "Determining Uncertainties of Relative Humidity Dew/Frost-Point Temperture and Mixing Ratio in a Humidity Standard Generator," Third International Symposium on Humidity and Moisture, Teddington, England, 4/6/98.
HODGES, J. T. : "Survey of the Humidity Program at NIST," Third International Symposium on Humidity and Moisture, Teddington, England, 4/7/98.
HUANG, P. H. : "New Equations for Water Vapor Pressure in the Temperature Range -100 degrees C to +100 degrees C for Use With the 1997 NIST/ASME Steam Tables," Third International Symposium on Humidity and Moisture, Teddington, England, 4/7/98.
NEWBURY, D. : "How Will We Measure X-Ray Spectra in the 21st Century," Lehigh University Student Materials Society, Bethlehem, PA, 4/7/98.
MCCRARY, V. R. : "Optoelectronics 2000: Manufacturing Infrastructure for Optoelectronics," Lehigh University Sigma Xi Chapter, Bethlehem, PA, 4/7/98.
CURRIE, L. : "NIST Individual Pulse Analysis System and a Proposed Small Sample Experiment," McClellan Air Force Base, Sacramento, CA, 4/7/98.
SCACE, G. E. : "Performance of a Precision Low Frost-Point Humidity Generator," Third International Symposium on Humidity and Moisture, Teddington, England, 4/8/98.
GREEN, D. S. : "Measuring PFC Emissions," EPA's Global Semiconductor Industry Conf., Monterey, CA, 4/8/98.


ANNOUNCEMENTS
1998 NIST CALIBRATION SERVICES USERS GUIDE (SP250)

The new 1998 Calibration Services Users Guide (SP250) is now available in printed form and electronically through our web site, (http://ts.nist.gov/calibrations). If you would like to receive printed copies, please e-mail Denise Lockard at denise.lockard@nist.gov.

http://ts.nist.gov/calibrations

For further information contact Denise Lockard, 301-975-2002, denise.lockard@nist.gov


NIST WEB SITE ANNOUNCEMENTS
OFFSITE TECHNICAL SUPPORT FOR SCIENTIFIC SOFTWARE SUPPORT

The Scientific Applications Support Project has placed the contacts for offsite technical support, email and phone, on our internal Web pages. Go to the URL listed and click on 'Offsite Technical Support' to get this information.

http://www.itl.nist.gov/div895/sasg/index.html

For further information contact Judith Devaney, 301-975-2882, judith.devaney@nist.gov
NIST POLICE

Please take a moment to look at our home page. Get to know the NIST Police. We offer a variety of services to our NIST customers. Some of these services include: Parking information, crime prevention, I.D. card information, crime stats, locksmith services and parking permits.

www-i.nist.gov/admin/fsd/police/police1.htm

For further information contact Richard Hawkins, 301-975-2805, richard.hawkins@nist.gov
Issue number: 9814

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