NIST Technicalendar February 11 to February 15, 2008 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/.

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)

Also available: Previous Issues of the Technicalendar Quick Technicalendar (current) Last week's Quick Technicalendar Last week's Technicalendar Detailed Search NIST Journal of Research (Current TOC) Change User Options

No Scheduled Events

1:00 PM - Latest Developments of the Laboratoire National De Metrologie Et D'Essais (LNE) Watt Balance Experiment
3:00 PM - Combinatorial Surface Chemistry Libraries

10:45 AM - On Masters and Slaves: How Water Controls Protein Motions and Function

No Scheduled Events

No Scheduled Events

2/11 -- MONDAY

No Scheduled Events

2/12 -- TUESDAY

1:00 PM - QUANTUM ELECTRICAL METROLOGY DIVISION SEMINAR: Latest Developments of the Laboratoire National De Metrologie Et D'Essais (LNE) Watt Balance Experiment
D Haddad , NIST.
Bldg 215, Rm. C103-C106. (NIST Contact: E Williams, 301-975-4206, edwin.williams@nist.gov)

3:00 PM - POLYMERS DIVISION SEMINAR: Combinatorial Surface Chemistry Libraries
Designing surfaces that tailor structure, function and properties of surface films is the key challenge in incorporating nanostructured materials into viable biomedical, electronics, coatings and sensors applications. Combinatorial surface libraries with versatile chemistry would thus allow for greater flexibility in analyzing structure/property relationships in these materials. Surface chemistry gradients were created by controlled diffusion of chlorosilane vapor through an elastomeric barrier. This method offers a flexible choice of available surface chemistry and facilitates molecular mixing of two chemical species, insuring homogeneous monolayers for micro- and nano-scale applications. Libraries created using an elastomeric diffusion barrier with changing thickness resulted in monolayer gradients over 30 mm in length, optimal for macro-scale applications. X-ray Photoelectron Spectroscopy was used to evaluate the chemical composition of the surface films, and the monolayer quality was surveyed using Atomic Force Microscopy.
Kirsten Genson , NIST.
224 Bldg, Rm. A312 CR. (NIST Contact: Jan Obrzut, 301-975-6845, jano@nist.gov)


2/13 -- WEDNESDAY

10:45 AM - NIST CENTER FOR NEUTRON RESEARCH SEMINAR: On Masters and Slaves: How Water Controls Protein Motions and Function
One of the most difficult aspects of understanding protein structure, dynamics and function concerns the interaction with the solvent. Water contributes to the stability the native state but also acts as a lubricant flexibilizing an otherwise rigid structure. A variety of dynamic neutron scattering techniques reveal two classes of protein motions, internal and solvent-coupled. The same conclusion is derived from flash photolysis experiments on ligand binding kinetics with heme proteins at variable solvent viscosity and pressure. Rotational jumps of side-chains are only weakly coupled to the surface. The reorientational motion of water at the protein surface induces small scale librational displacements of side chains, facilitating ligand exchange between active site and the solvent. The protein-solvent interaction occurs on a pico-second time scale and is best described by "coupling" and not by "slaving", since the protein also modifies the properties of the solvent: Hydration water does not crystallize at low temperatures but performs a dynamical transition from a liquid to a glassy state. With neutron scattering both protein and water motions can be observed on a pico- to nano- second time-scale.
Wolfgang Doster , Technical University Munich.
235 Bldg, Rm. E100. (NIST Contact: Dan Neumann, 301-975-5252, dan@nist.gov)


2/14 -- THURSDAY

No Scheduled Events

2/15 -- FRIDAY

No Scheduled Events

ADVANCE NOTICE

2/19/08 3:30 PM - MATHEMATICAL AND COMPUTATIONAL SCIENCES DIVISION SEMINAR: Evaluation of Uncertainty Associated With the Avogadro Constant
Ruediger Kessel , Mathematical and Computational Sciences Div..
Administration Bldg, Lecture Rm. C. (NIST Contact: Raghu Kacker, 301-975-2109, raghu.kacker@nist.gov) http://math.nist.gov/mcsd/Seminars/2008/2008-02-19-Kessel.html

2/20/08 1:30 PM - CNST NANOFABRICATION RESEARCH GROUP SEMINAR: Nonlinear Optics in Silicon Photonic Wires: Theory and Application
Silicon photonic wires (SPW) are deeply scaled silicon waveguides with transverse dimensions much less than 1 ?m. Integrated silicon photonic devices based on SPW generally have very small footprint and very strong light confinement, which lead to many advantageous physical properties: capability for dispersion engineering, high optical-field density, enhanced effective nonlinearity, and intrinsically short carrier lifetime. First, I will present a comprehensive theoretical model developed to describe pulse dynamics in high-index-contrast and anisotropic waveguides. Third-order nonlinearities, dispersion effects up to the third-order and carrier effects are the three major contributors to the rich pulse dynamics in SPW. In this thesis, various nonlinear optical processes in SPW such as stimulated Raman Scattering (SRS), self-phase modulation (SPM), cross-phase modulation (XPM), modulation instability (MI), and third-order dispersion (TOD) induced soliton-radiation effect are studied theoretically and experimentally. In linear regime, I systematically investigated the "dispersion engineering" in SPW and experimentally demonstrated that SPW could support wavelength-division multiplexing (WDM) transmission at 300 Gb/s for intra-chip optical network. SPM of optical pulses with temporal widths in both picosecond and femtosecond regimes is studied experimentally and theoretically. In the femtosecond regime, the interplay of nonlinear effects, group-velocity-dispersion (GVD) and TOD results in soliton-like pulse propagation in SPW. TOD-induced soliton radiation was demonstrated both numerically and experimentally. XPM is studied using two femtosecond pulses. I investigated the time-resolved phase modulation as a manifestation of the walk-off between these two pulses. XPM is also utilized to optically compress a weak 200-fs pulse propagating in the anomalous GVD regime. MI is a four-wave-mixing (FWM) process that is phase-matched by SPM. We demonstrated that strong MI can be observed in silicon photonic wires with lengths of only a few millimeters using numerical simulation. Our results suggest that MI can be employed to design on-chip optical sources with a highly tunable repetition rate. SRS-based optical amplification in silicon waveguide is a significant functionality. I use the model developed in this thesis to study numerically SRS-mediated pulse dynamics, such as Stokes pulse generation from noise and Raman amplification of Stokes pulse.
Xiaogang Chen , Research Associate - Columbia University, New York, NY.
217 Bldg, Rm. H107. (NIST Contact: Kartik Srinivasan, 301-975-5938, kartik.srinivasan@nist.gov)

2/21/08 8:30 AM - TECHNOLOGY SERVICES SEMINAR: Global Perspectives and Strategies for Education about Standardization Workshop
This workshop is to promote and support awareness of education about standardization worldwide. The two-day workshop will consist of an overview of activities and programs from standards professionals around the world as well as a discussion of key issues, needs and challenges facing those who are involved in standards education.
John Hill , Sun Microsystems. Additional speakers will be Dr. Richard Forselius, United Technologies; Mr. James Olshefsky, Director, External Relations and many more panelists
101 Bldg, Red Auditorium. (NIST Contact: Erik Puskar, 301-975-8619, erik.puskar@nist.gov) http://ts.nist.gov/Standards/ices-workshop.cfm
Special Assistance Available

2/22/08 10:30 AM - NIST COLLOQUIUM SERIES: Benjamin Franklin: The First Scientific American
Famous, fascinating Benjamin Franklin--he would be neither without his accomplishments in science. Franklin was the first person born in the Americas who became internationally celebrated for work in physical science. Although he has been most celebrated for his electrical experiments, he did far more, eventually making major contributions to no fewer than three areas of science, which we would now recognize as the fields of physics, oceanography, and demography. In all three fields, Franklin drew upon his American environment and experiences, though in significantly different ways in each case. Copies of "Benjamin Franklin: In Pursuit of Genius" will be available for review and purchase at the talk.
Joyce Chaplin , History Department, Harvard University.
Administration Building, Red Auditorium. (NIST Contact: Kum Ham, 301-975-4203, kham@nist.gov)
Special Assistance Available

2/25/08 1:30 PM - CNST ELECTRON PHYSICS GROUP SEMINAR: Block-copolymer lithography for patterning perpendicular magnetic nano-islands
Templated block copolymer lithography is a powerful method of fabricating nanostructures which draws on the combined strengths of both top-down and bottom-up methods. This talk will discuss the fabrication and magnetic properties of ordered and disordered perpendicular CoCrPt magnetic islands in a range of sizes (5-15nm thick, 20-30nm diameter) fabricated by this method. Disordered patterns were obtained by annealing a thin spin-coated film of polystyrene-polyferrocenyldimethylsilane (PS-PFS) block copolymer. Ordered arrays were fabricated by a similar method, except the polymer was first templated using a removable topographic template. While topographical templates have previously been used to impose long-range order on block copolymer systems, their use results in residual surface relief on the substrate and therefore in the finished device, which is generally undesirable. To avoid this, a removable template may be used. The pattern can then be transferred into functional materials such as silica, W or magnetic films to make long-range-ordered dot arrays over planar substrates. In particular, magnetic islands fabricated by this method maintain their perpendicular magnetic anisotropy but show increased coercivity (800-1650 Oe) as compared to the unpatterned film (150 Oe). Since the islands are uniaxial and non-interacting (calculated nearest neighbor fields are 50 Oe, Hc), time-scale-dependent magnetic properties could be characterized using Sharrock's approach. The measurements show switching volumes (V*) on the order of the physical volume of the dots (~5000 nm3) suggesting that the dots switch their magnetization coherently and independently of each other. The advantages of this technique will be discussed for large-area self-assembled nanoscale pattern formation, and how it can be applied to the fabrication of various structures including patterned magnetic media, DNA sorting and detection devices or plasmon waveguides.
FILIP ILIEVSKI , RESEARCH ASSISTANT, MASSACHUSETTS INSTITUTE OF TECHNOLOGY.
Bldg. 217, Rm. H107. (NIST Contact: Robert McMichael, 301-975-5121, robert.mcmichael@nist.gov)

2/26/08 7:00 PM - ASQ SOFTWARE SPECIAL INTEREST GROUP AND SOCIETY FOR SOFTWARE QUALITY: Are You Ready for an External Audit?
"Are You Ready for an External Audit?" is about how to determine if you are ready for an audit such as CMMI appraisal or ISO 9001:2000. Carolyn Lincoln will outline a method of mapping your artifacts to the model and then measuring your progress toward readiness for the audit. Carolyn Lincoln has over 20 years of experience in IT, first as a programmer and then a project manager. For the last 10+ years, she has been working on process improvement as an internal consultant and quality assurance manager. Carolyn has participated in CMMI appraisals and ISO 9001:2000 audits and is now working with a project on ISO 20000:2005 certification. Her ASQ certifications are as a Quality Manager, Quality Auditor and Green Belt. She obtained her bachelor's degree from Michigan State University and a master's from Johns Hopkins. There is no cost to attend, but please register by noon Friday, February 22nd, 2008 by contacting Scott Ankrum at ankrums@mitre.org or 703-983-6127. Pizza and soda will be served at 6:30 PM.
Carolyn Lincoln , Quality Assurance Manager.
Administration Bldg, Lecture Rm. C. (NIST Contact: Paul E. Black, 301-975-4794, paul.black@nist.gov)

3/4/08 8:30 AM - COMPUTER SECURITY DIVISION SEMINAR: 7th Symposium on Identity and Trust on the Internet (IDtrust 2008)
Previously known as the PKI R&D Workshop, our new name reflects interest in a broader set of tools and the goal of an identity layer for the Internet. We aim to get practitioners in different sectors together to apply the lessons of real-world deployments to the latest research and ideas on the horizon. Join with experts from NIST, FPKIPA, OASIS, private industry and universities throughout the world to discuss all aspects of identity and trust. Peer reviewed papers focused on Identity Management, Health Care, Public Key Infrastructure and Access Control in Open System will be combined with topical panels during the two and half day event. Two scheduled panels include the Liberty Alliance Identity Assurance Framework and Open Reputation Management Systems. As always, there will be plenty of opportunities for informal networking.

Administration Bldg, Red Auditorium. (NIST Contact: Sara Caswell, 301-975-4634, sara@nist.gov) http://middleware.internet2.edu/idtrust/2008/
Special Assistance Available (teresa.vicente@nist.gov)

3/6/08 9:15 AM - CNST ELECTRON PHYSICS GROUP SEMINAR: The Estimation of Spin-penetration Depth in Ferromagnetic Metals
In the development of spintronics device like a MRAM, the spin-current-induced magnetic reversal is important, because it is expected to reduce the power consumption of device. The penetration depth of transverse component of spin-current is the distance the induced spin relax in ferromagnetic metals and it influence the behavior of spin-current-induced magnetic reversal. In this work, we report the experimental determination of the spin-penetration depth.
Satoshi Yakata , Dr. - Tohoku University, Sendai, yakata2@mlab.apph.tohoku.ac.jp.
217 Bldg, Rm. H107. (NIST Contact: Robert McMichael, 301-975-5121, robert.mcmichael@nist.gov)

3/6/08 10:30 AM - CNST NANOTECHNOLOGY SEMINAR SERIES: Biomimetic Nanoscience: Challenges and Opportunities
The adaptive pressures displayed across the flora and fauna result in a variety of sophisticated nanostructured materials that are perfected to perform multiple biological functions. Our understanding of the underlying principles of their formation provides ample opportunities in the synthesis of next generation, bio-inspired, nanostructured materials. To date, there has been demonstrable progress in materials fabrication harnessing the functional power of biological systems. There is, however, a number of challenges related to the characterization of both biological and synthetic bio-related structures. I will exemplify this point by describing new synthetic strategies and devices that have been inspired by the study of two organisms – echinoderms and sponges. The topics will include self-assembly, control of crystallization, adaptive optical structures, fiber-optics, biomechanics, hybrid materials and novel actuation systems.
Joanna Aizenberg , Professor - Harvard University.
215 Bldg, Rm. C103 - C106. (NIST Contact: Nikolai Zhitenev, 301-975-6039, nikolai.zhitenev@nist.gov)

3/7/08 1:30 PM - CNST ELECTRON PHYSICS GROUP SEMINAR: "Revealing Magnetic Interactions From Single-Atom Magnetization Curves"
The ongoing miniaturization of magnetic devices towards the limit of single atoms calls for appropriate tools to study their magnetic properties. We demonstrate the ability to detect magnetization curves of individual magnetic atoms adsorbed on a metallic substrate using a scanning tunneling microscope with a spin-polarized tip. This enables to map tiny magnetic interactions on the atomic length scale which is evidenced by measuring the RKKY-like indirect exchange between a cobalt adatom and a cobalt nanowire on platinum(111). The method allows for future application to magnetic defects in semiconductors, in order to improve our understanding of diluted magnetic semiconductors. As a first step we will show our detailed investigation of the electronic structure of Mn acceptors in InAs.
Jens Wiebe , Dr./Scientific Staff - University of Hamburg, , jwiebe@physnet.uni-hamburg.de.
217 Bldg, Rm. H107. (NIST Contact: Joseph Stroscio, 301-975-3716, joseph.stroscio@nist.gov)

3/19/08 8:00 AM - POLYMERS DIVISION SEMINAR: Workshop on the Directed Assembly of Functional Materials and Devices
Controlling the placement of nanoscale units into designed structures and patterns through directed assembly processes answers one of the grand challenges of nanotechnology. Innovative approaches using the directed assembly of nanoscale units are being developed to facilitate the nanofabrication of new materials and applications that can incorporate biological functionality, or devices such as flexible, large-area electronics devices. Directed assembly methods provide an opportunity to overcome limitations of traditional semiconductor processing; specifically, the small materials set with which to work, restriction to two dimensional patterning, and exorbitant equipment costs. Moving directed assembly from research demonstrations to viable manufacturing processes is difficult because it requires control over the simultaneous transport, placement, and interactions of a potentially large set of nanoscale units with different size, shape, and chemical functionality. New measurements and process control methods must be developed to enable successful implementation of this groundbreaking technology. This workshop will bring together leading researchers and stakeholders from industry, government, and academia that are actively engaged in research and development of the directed assembly of nanoparticles into functional materials and devices. Through invited presentations and focused discussions, the workshop will explore and identify the most pressing measurement and technological needs to advance directed assembly as a viable manufacturing method for future nanotechnology applications.
Heiko Wolf , International Business Machines,. Haw Yang, Christopher Murray, Oleg Gang, Babak Parviz, Dan Herr, Mike Natan, Mike Bevan, Abe Stroock, Sharon Glotzer, Kate Stebe, Chong Ahn, CJ Kim, Hiroshi Matsui, Alex Tkachenko
AML, 215 Bldg, Rm. C103/106. (NIST Contact: Steven Hudson, 301-975-6579, steven.hudson@nist.gov) http://polymers.nist.gov/Directed_Assembly/Directed_Assembly_Workshop2.htm
Rooms are wheel chair accessible.

---

MEETINGS ELSEWHERE


2/11 -- MONDAY

11:00 AM - CARNEGIE INSTITUTION OF WASHINGTON/GEOPHYSICAL LAB. SEMINAR: CLATHRATES OF HYDROGEN: STRUCTURE, STABILITY, DYNAMICS AND APPLICATION TOWARDS ENERGY STORAGE
T. Strobel , Colorado School of Mines.
Bldg, Rm..
Greenewalt Bldg., GL-DTM Grounds, Carnegie Institution of Washington, DC. (NIST Contact: . ., 202-478-8900, seminar@lists.ciw.edu)



2/12 -- TUESDAY

11:00 AM - CARNEGIE INSTITUTION OF WASHINGTON/GEOPHYSICAL LAB. SEMINAR: KINETIC ISOTOPE EFFECTS DURING CARBONATE CLUMPED ISOTOPE FRACTIONALTION AND QUANTITATIVE SPELEOTHEM THERMOMETRY
W. Guo , CalTech.
Bldg, Rm..
Greenewalt Bldg., GL-DTM Grounds, Carnegie Institution of Washington, DC. (NIST Contact: . ., 202-478-8900, seminar@lists.ciw.edu)



2/13 -- WEDNESDAY

3:00 PM - CARNEGIE INSTITUTION OF WASHINGTON/GEOPHYSICAL LAB. SEMINAR: TBA
P. Craddock , Woods Hole Oceanographic Institution/MA.
Bldg, Rm..
Greenewalt Bldg., GL-DTM Grounds, Carnegie Institution of Washington, DC. (NIST Contact: . ., 202-478-8900, seminar@lists.ciw.edu)



2/14 -- THURSDAY

11:00 AM - CARNEGIE INSTITUTION OF WASHINGTON/GEOPHYSICAL LAB. SEMINAR: (AN-) ELASTIC DAMPING OF SEISMIC WAVES: WHAT MICROSTRUCTURES CAN TELL US
E. Salje , U Cambridge.
Bldg, Rm..
Greenewalt Bldg., GL-DTM Grounds, Carnegie Institution of Washington, DC. (NIST Contact: . ., 202-478-8900, seminar@lists.ciw.edu)

3:00 PM - CARNEGIE INSTITUTION OF WASHINGTON/GEOPHYSICAL LAB. SEMINAR: PROBING PLANETARY INTERIORS WITH THE LARGEST LASERS ON EARTH
R S Williams , U C Berkeley.
Bldg, Rm..
Greenewalt Bldg., GL-DTM Grounds, Carnegie Institution of Washington, DC. (NIST Contact: . ., 202-478-8900, seminar@lists.ciw.edu)



2/15 -- FRIDAY

No Scheduled Events

ADVANCE NOTICE

No Scheduled Events

---

TALKS BY NIST PERSONNEL

RUDNICK, P. : COMBINING SPECTRAL LIBRARY SEARCHING WITH SEQUENCE SEARCHING FOR IDENTIFICATION OF PEPTIDES.
Association of Biomolecular Resource Facilities (ABRF) Meeting, Salt Lake City, UT, 2/11.

OHNO, Y. : COLOR QUALITY OF SOLID STATE LIGHTING PRODUCTS..
Strategies in Light 2008 Conference, Santa Clara Convention Center, Santa Clara, CA, 2/11.

ZIMMERMAN, B. : RADIOACTIVITY STANDARDS FOR NUCLEAR MEDICINE IMAGING: TOOLS FOR ENHANCING THE ACCURACY OF PET AND PET-CT QUANTITATION.
Univ. of Texas M. D. Anderson Cancer Center, Houston, TX, 2/12.

WIGHT, S. : A COMPARISON OF IMAGING MODES: SECONDARY ELECTRON, ION INDUCED, STEM..
20th Australian Conference on Microscopy & Microanalysis, Perth Convention Exhibition Center Western Australia, 2/12.

MARINENKO, R. : A WD-EPMA HETEROGENEITY TESTING COMPARISON OF MAPPING WITH RANDOM POINT ANALYSIS PROCEDURE.
20th Australian Conference on Microscopy & Microanalysis, Perth Convention Exhibition Center Western Australia, 2/14.

SOLES, C. : NANOPOROUS ORGANOSILITATE FILMS AND NANOSTRUCTURES PATTERED BY NANOIMPRINT LITHOGRAPHY.
University of Michigan, Ann Arbor, MI, 2/15.

PLUSQUELLIC, D. : THZ INVESTIGATIONS OF BIOMOLECULAR SYSTEMS.
NIST Boulder, Colorado, USA, 2/15.

---

ANNOUNCEMENTS

CALL FOR 2008 NOMINATIONS TO NIST PORTRAIT GALLERY
The NIST Portrait Gallery of Distinguished Scientists, Engineers and Administrators honors NBS/NIST alumni for outstanding career contributions to the work of NBS/NIST. Portraits and biographies of those selected are displayed in the corridor of the NIST cafeteria at Gaithersburg. Portraits of at most ten additional persons will be added to the Portrait Gallery in 2008. Any current or former NIST staff member may make a nomination. Nominations of alumni administrators of both programmatic and support units are welcome. Nominations are encouraged of distinguished women and minorities alumni, as well as of outstanding NBS staff members who retired before 1963. For the latter, it is understood that some requested data may no longer be available. For persons who were nominated last year, but not selected, a new nomination may be submitted. If a nominee is not selected after two successive years of nomination, the nominee will not be considered in the following year. Nomination instructions are available from the Standards Alumni Association, Room A-42 Admin, Mail Stop 0952, NIST, Gaithersburg, MD 20899-0952; telephone 301-975-2486; by email: alumni@nist.gov; or from the SAA website: www.nist.gov/director/saa. Nominations shall be received by the Standards Alumni Association on or before February 15, 2008, by mail or by email to the above addresses. No exceptions will be made to this deadline. December 2007
NIST Contact: Anneke Sengers, 301-975-2463, alumni@nist.gov

FIFTEENTH ANNUAL SIGMA XI POST-DOCTORAL POSTER PRESENTATION
The NIST Chapter of Sigma Xi announces that the Fifteenth Annual Post-Doctoral Poster Presentation will be held February 14, 2008 in Lecture Rooms A and B and in the Hall of Flags in the Administration Building. All Postdoctoral Fellows and Guest Scientists who have received their advanced degree in the last five years have been invited to present a poster on their scientific research to their NIST coworkers and friends. This year there will be two sessions: one from 9 am to 12 and the second from 1 pm to 4 pm and both will be accompanied by refreshments. Posters 1-49 will be in session one and posters 50 –97 will be in session two. All the participating Post-docs and Guest Scientists will be invited to a special reception and lunch hosted by Sigma Xi when the award for the most outstanding posters will be announced. All the abstracts of the 2008 submitted posters are now available at the NIST Sigma Xi web site: 2008 Posters\ppp2008.html or at http://www.nist.gov/sigmaxi Please plan to attend and discover the interesting research being conducted by our Post-docs and Guest Scientists and welcome them to NIST.
NIST Contact: Barbara C. Levin, 301-975-6682, barbara.levin@nist.gov

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: . ., ., .

---

NIST WEB SITE ANNOUNCEMENTS

No Web Site announcements this week.

---

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.

---

NVL Webmaster