Conference Program

CONFERENCE ON SPACE COMMERCIALIZATION CELEBRATION OF 50 YEARS IN SPACE AND LOOKING TO THE FUTURE CONFERENCE PROGRAM Monday, November 12, 200

Organizing Committee: Reach to Space Conference on Space Commercialization: A Celebration of 50 Years in Space

Michael Beavin, Department of Commerce Robert Bell, SSPI Tamara Bond, SSPI David Bross, Hannover Fairs Corporartion Dean Henry Burdg, Auburn University David Cavossa, Arrowhead Global Solutions Scott Chase, Access Intelligence Leonard David, Space.com Kenneth Davidian, NASA Don Flournoy, Ohio University Tara Giunta, Paul Hastings Janofsky & Walker LLC Ray Hamilton, Auburn University Douglas Heydon, Consultant Susan Irwin, Irwin Communications Hussein Jirdah, Universities Space Research Association Randy Johnson, Auburn University David Logsdon, US Chamber of Commerce, Space Enterprise Project Andrea Maleter, Futron Corporation Ted Mallory, Astar Air Cargo Joseph Pelton, George Washington University Art Poland, George Mason University Lon Rains, Space News Delbert Smith, Jones Day LLC Dianne Townsend, Auburn University James Vedda, Aerospace Corporatio

Sponsors: Reach to Space Conference on Space Commercialization: A Celebration of 50 Years in Space

Sponsors of the Reach to Space Conference on Space Commercialization: A Celebration of 50 Years in Spac

Speaker Biographies: Reach to Space Conference on Space Commercialization: A Celebration of 50 Years in Space

Speaker Biographies: Reach to Space Conference on Space Commercialization: A Celebration of 50 Years in Space Edward D. Horowitz Phillip Spector John Mattingly Robert Bell Joseph N. Pelton Courtney Stadd Gregg Maryniak J. Steven Newman Lon Rains Don M. Flournoy John Ordwa

NASA ACTS Satellite: A Disaster Recovery Test

In September 1993, NASA launched its long-awaited Advanced Communication Technology (ACTS) satellite. ACTS is a $500 million experimental all-digital spacecraft hosting a number of first-time technologies: on-board processing and switching, high-powered electronically hopping spot beams, adaptive rain-fade compensation and opening of the Ka frequency band. Among the earliest of the tests on the new satellite was a NASA sponsored project conducted by Ohio University and its commercial partner, the Huntington National Bank. HNB is a$17 billion regional bank with 338 offices in fourteen states. Transactions on HNB\u27s data networks currently travel on terrestrial T-1 lines. The Ohio University/HNB tests were initiated to determine the capability of the satellite for service restoral in the case of a failure in one of the Bank\u27s terrestrial links. The ACTS Disaster Recovery Project was designed to test the Bank\u27s ability to by-pass such problems on the ground by switching to a space path. The goal was to make the switch-over with the briefest interuption of service, with minimal loss of transmitted data, within acceptable cost and with sustained security

Issue 9: Contributors

List of issue 9 contributors

Overview: Politics and Technology Converge: Case Studies on the Effects of Regulatory Reform on VSAT Adoption in Developing Countries

Developing countries are actively implementing satellite data networks, and have undertaken policy reforms to facilitate such networks. This research examines how regulatory changes have resulted in the removal of barriers relating to the deployment of access technologies and growth in connectivity, especially in VSAT installations for low cost Internet access. In addition, this research seeks to identify the socio-economic impact of emerging data network applications in government, business, health and education. In some cases, government offices have been the driver of change; in other cases, businesses have been the ones to initiate and press these developments forward

Asymmetric Orbifolds, Non-Geometric Fluxes and Non-Commutativity in Closed String Theory

In this paper we consider a class of exactly solvable closed string flux backgrounds that exhibit non-commutativity in the closed string coordinates. They are realized in terms of freely-acting asymmetric Z_N-orbifolds, which are themselves close relatives of twisted torus fibrations with elliptic Z_N-monodromy (elliptic T-folds). We explicitly construct the modular invariant partition function of the models and derive the non-commutative algebra in the string coordinates, which is exact to all orders in {\alpha}'. Finally, we relate these asymmetric orbifold spaces to inherently stringy Scherk-Schwarz backgrounds and non-geometric fluxes.Comment: 30 page

D-branes in T-fold conformal field theory

We investigate boundary dynamics of orbifold conformal field theory involving T-duality twists. Such models typically appear in contexts of non-geometric string compactifications that are called monodrofolds or T-folds in recent literature. We use the framework of boundary conformal field theory to analyse the models from a microscopic world-sheet perspective. In these backgrounds there are two kinds of D-branes that are analogous to bulk and fractional branes in standard orbifold models. The bulk D-branes in T-folds allow intuitive geometrical interpretations and are consistent with the classical analysis based on the doubled torus formalism. The fractional branes, on the other hand, are `non-geometric' at any point in the moduli space and their geometric counterparts seem to be missing in the doubled torus analysis. We compute cylinder amplitudes between the bulk and fractional branes, and find that the lightest modes of the open string spectra show intriguing non-linear dependence on the moduli (location of the brane or value of the Wilson line), suggesting that the physics of T-folds, when D-branes are involved, could deviate from geometric backgrounds even at low energies. We also extend our analysis to the models with SU(2) WZW fibre at arbitrary levels.Comment: 38 pages, no figure, ams packages. Essentially the published versio