SU(3)-Goodman-de la Harpe-Jones subfactors and the realisation of SU(3) modular invariants

We complete the realisation by braided subfactors, announced by Ocneanu, of all SU(3)-modular invariant partition functions previously classified by Gannon.Comment: 47 pages, minor changes, to appear in Reviews in Mathematical Physic

Strain sensor for high temperatures Patent

Water cooled gage for strain measurements in high temperature environment

Review of: Lewis\u27 Dictionary of Toxicology (Robert A. Lewis, ed.; Lewis Publishers 1998)

Review of the book: Lewis\u27 Dictionary of Toxicology (Robert A. Lewis, ed.; Lewis Publishers 1998). About the author, acknowledgments, alphabetical listing of terms defined. ISBN 1-56670-223-2; [1127 pp. $84.95. Hardbound. 2000 Corporate Blvd. N.W., Boca Raton, FL 33431.

In-flight friction and wear mechanism

A unique mechanism developed for conducting friction and wear experiments in orbit is described. The device is capable of testing twelve material samples simultaneously. Parameters considered critical include: power, weight, volume, mounting, cleanliness, and thermal designs. The device performed flawlessly in orbit over an eighteen month period and demonstrated the usefulness of this design for future unmanned spacecraft or shuttle applications

Integrable Lattice Models for Conjugate An(1)A^{(1)}_n

A new class of $A^{(1)}_n$ integrable lattice models is presented. These are interaction-round-a-face models based on fundamental nimrep graphs associated with the $A^{(1)}_n$ conjugate modular invariants, there being a model for each value of the rank and level. The Boltzmann weights are parameterized by elliptic theta functions and satisfy the Yang-Baxter equation for any fixed value of the elliptic nome q. At q=0, the models provide representations of the Hecke algebra and are expected to lead in the continuum limit to coset conformal field theories related to the $A^{(1)}_n$ conjugate modular invariants.Comment: 18 pages. v2: minor changes, such as page 11 footnot

Trap-Nesting Wasps and Bees: Life Histories, Nests, and Associates. Karl V. Krombein. Washington, D.C.: The Smithsonian Institution, 1957. Smithsonian Publ. 4670. vi, 570 pp. $12.50.

Excerpt: The technique of trap-nesting for wasps and bees by putting out strips of wood having a hole bored in one end is not exactly new, but only within the last 15 years has it been widely employed in this country. This new book by Karl V. Krombein, chairman of the Department of Entomology at the U.S. National Museum, reveals how enormously productive the technique can be. It is, of course, useful only for species that normally nest in hollow twigs. Species that bore in pith (such as many crabronine wasps) do not usually accept the traps , nor do groundnesters (which make up the majority of wasps and bees)

The Federal Aviation Administration/Massachusetts Institute of Technology (FAA/MIT) Lincoln Laboratory Doppler weather radar program

The program focuses on providing real-time information on hazardous aviation weather to end users such as air traffic control and pilots. Existing systems will soon be replaced by a Next Generation Weather Radar (NEXRAD), which will be concerned with detecting such hazards as heavy rain and hail, turbulence, low-altitude wind shear, and mesocyclones and tornadoes. Other systems in process are the Central Weather Processor (CWP), and the terminal Doppler weather radar (TDWR). Weather measurements near Memphis are central to ongoing work, especially in the area of microbursts and wind shear

Making Space, adding value; locating and defining the 'creative space' of spatial production.

Ideas are born within a mental ‘creative space’ and are valued across creative disciplines. However, as architectural practice frantically responds to demands of time, economy and style, the value of such ‘creativity’ and ‘space for creativity’ is often overlooked or treated as an add-on. Despite expectations on architects to improve the built environment, neither ongoing changes to the role of the architect, nor imminent changes to educational structures recognise and value the imagination as key to the synthesis of professional knowledge and design vision.  As part of a larger research project exploring the relationship between mentally imagined space and physically experienced place, this paper focuses on defining and locating the mental ‘creative spaces’ within invisible structures of creative practice. The findings of focus-groups with architects, artists, students and educators from a range of disciplines identify themes linked to invention and synthesis within the design process; exploring where these ‘spaces’ exist within design methodologies, practices and educational structures. Discussions and analysis are guided by underlying concepts such as ‘the outside’, ‘third space’, ‘rhythmanalysis’ and ‘undirected thought’. Conclusions will be used to reassert the salience of, and need to protect the ‘creative space’ within modes of architectural practice and educational pedagogies