Competitive Liberalization and a US-SACU FTA

This paper evaluates a possible US-SACU (Southern African Customs Union) free trade agreement as part of a US approach to new preferential trade agreements characterized by the term competitive liberalization.' This is the idea that competition among large countries (US/EU) to negotiate preferential arrangements with smaller countries or regions will lower barriers, and eventually add fresh impulse to new multilateral WTO negotiations. In commercial policy terms, the US interest in such an arrangement lies in improved access to a smaller but more protected market where the EU already has preferential arrangements, and the SACU interest lies in improved access to a much larger but less protected market. There is also a SACU interest in weakening the trade restrictive effects of MFA quotas in the US for apparel imports. The risk of entrapment in extremely complex rules of origin arrangements which at times close markets (as in NAFTA and other US bilaterals) is a concern for SACU. Also, gains to SACU may be only temporary because of the US proposal to eliminate non agricultural tariffs entirely in the WTO by 2015. In key non commodity trade areas (services, investment, intellectual property, temporary entry of business persons), if other US bilaterals are any guide most liberalization requested will be heavily asymmetric if not unilateral on the SACU side. SACU does not currently cover any of these items since it is only a customs union, and prior negotiation will be needed among SACU countries. SACU also clearly has an interest in coordinating its negotiation with other US bilateral negotiating partners. These and other barriers to negotiation (including negotiating capacity constraints in several SACU members) will influence the outcome of negotiations.

Nuclear rocket propulsion. NASA plans and progress, FY 1991

NASA has initiated planning for a technology development project for nuclear rocket propulsion systems for space explorer initiative (SEI) human and robotic missions to the moon and Mars. An interagency project is underway that includes the Department of Energy National Laboratories for nuclear technology development. The activities of the project planning team in FY 1990 and 1991 are summarized. The progress to date is discussed, and the project plan is reviewed. Critical technology issues were identified and include: (1) nuclear fuel temperature, life, and reliability; (2) nuclear system ground test; (3) safety; (4) autonomous system operation and health monitoring; and (5) minimum mass and high specific impulse

Nuclear thermal propulsion test facility requirements and development strategy

The Nuclear Thermal Propulsion (NTP) subpanel of the Space Nuclear Propulsion Test Facilities Panel evaluated facility requirements and strategies for nuclear thermal propulsion systems development. High pressure, solid core concepts were considered as the baseline for the evaluation, with low pressure concepts an alternative. The work of the NTP subpanel revealed that a wealth of facilities already exists to support NTP development, and that only a few new facilities must be constructed. Some modifications to existing facilities will be required. Present funding emphasis should be on long-lead-time items for the major new ground test facility complex and on facilities supporting nuclear fuel development, hot hydrogen flow test facilities, and low power critical facilities

Pion-Nucleus Scattering at Medium Energies with Densities from Chiral Effective Field Theories

Recently developed chiral effective field theory models provide excellent descriptions of the bulk characteristics of finite nuclei, but have not been tested with other observables. In this work, densities from both relativistic point-coupling models and mean-field meson models are used in the analysis of meson-nucleus scattering at medium energies. Elastic scattering observables for 790 MeV/$c$ $\pi^{\pm}$ on $^{208}$Pb are calculated in a relativistic impulse approximation, using the Kemmer-Duffin-Petiau formalism to calculate the $\pi^{\pm}$ nucleus optical potential.Comment: 9 page

NASA/DOE/DOD nuclear propulsion technology planning: Summary of FY 1991 interagency panel results

Interagency (NASA/DOE/DOD) technical panels worked in 1991 to evaluate critical nuclear propulsion issues, compare nuclear propulsion concepts for a manned Mars mission on a consistent basis, and to continue planning a technology development project for the Space Exploration Initiative (SEI). Panels were formed to address mission analysis, nuclear facilities, safety policy, nuclear fuels and materials, nuclear electric propulsion technology, and nuclear thermal propulsion technology. A summary of the results and recommendations of the panels is presented