The US Nuclear Regulatory Commission is proposing to amend the regulations that currently require that the design basis for nuclear power plants include the postulation of dynamic effects from loss of coolant accidents up to and including the double-ended rupture of the largest pipe in the reactor coolant system. Proposed modifications would allow analyses to serve as a sufficient basis for excluding dynamic effects, including but not necessarily limited to pipe whip and jet impingement, associated with specific pipe ruptures. Only dynamic effects would be impacted; current design requirements for containment sizing and discharge capacity of emergency core cooling systems would remain unchanged. This report presents a detailed analysis of value-impact associated with the proposed amendment for PWR reactor coolant loop piping and for BWR recirculation loop piping. The effect of extending application of the proposed rule change to other piping systems is also assessed in a less quantitative manner.

A computing architecture is a framework for making decisions about the implementation of computer technology and the supporting infrastructure. Because of the size, diversity, and amount of resources dedicated to computing at the Savannah River Site (SRS), there must be an overall strategic plan that can be followed by the thousands of site personnel who make decisions daily that directly affect the SRS computing environment and impact the site's production and business systems. This plan must address the following requirements: There must be SRS-wide standards for procurement or development of computing systems (hardware and software). The site computing organizations must develop systems that end users find easy to use. Systems must be put in place to support the primary function of site information workers. The developers of computer systems must be given tools that automate and speed up the development of information systems and applications based on computer technology. This document describes a proposal for a site-wide computing architecture that addresses the above requirements. In summary, this architecture is standards-based data-driven, and workstation-oriented with larger systems being utilized for the delivery of needed information to users in a client-server relationship.

From introduction: This report covers an investigation of solid-state bonding as a technique for aluminum cladding uranium plates of 3 by 0.180-in. cross section in lengths up to 14 ft.

Objectives are studies of equilibrium/nonequilibrium properties of asymmetric fluid mixtures through computer simulation (CS), development of predictive theories of mixture equilibrium properties, development and application of selection algorithm methodology for mixture equations of state, and use of theory to develop new engineering design models for fluid mixtures. Kirwood charging method CS of Lennard-Jones mixtures with large size ratios verified the Kirkwood-Buff/Baxter method of calculating chemical potentials. CS of n-butane showed that the rheology is not a function of system size. A modified stepwise regression algorithm was developed and applied to HFC R134a. An analytical expression was developed for conformal solution size correction for mixtures. The extended corresponding states theory (ECST) can be applied to systems having large polarity differences; an accurate representation was developed of bulk phase properties of water-hydrocarbon systems. It was found how to force ECST to reach the correct virial limit.

Two techniques for the end-of-life shutdown of orbiting SNAP reactors are presented. One technique consists of two alternative methods for the destruction of the reactor core. This technique (and others) have been investigated during the past year. A second technique, uses a naturally occurring phenomena, which works on the principle of a low neutron absorbing nuclide decaying to a high neutron absorbing daughter (poison). The present design criteria for the latter technique is that only a small reduction in reactivity should occur during the mission lifetime with the slow build-up of poison eventually shutting down the reactor at some later date. Tritium, an isotope of hydrogen is presented as a parent that appears to meet all of the requirements for such an end-of-life shutdown device. The daughter, He/sup 3/ has a high neutron absorption cross section. The results of a preliminary study of the tritium device are presented.

Several problems were investigated. The time-steady accretion of gas irradiated by a self-consistently generated quasar-like continuum was studied. The observed x-ray sources near the core of the Orion molecular cloud were established to be sufficient to supply all the ionization that is needed to drive the molecular chemistry throughout that portion of the cloud in which the greatest density and diversity of molecular species is found. A new suggestion was put forth for a single pass, high gain, O/sup 5 +/ ion laboratory laser at 1035 A. The only evidence for binaries in globular clusters was found to come from binaries in extreme states, cataclysmic variables, and x-ray sources. The various evolutionary paths possible for highly compact binaries in globular clusters where they come under the simultaneous influence of gravitational radiation and gravitational encounters with field stars were analyzed. The secular evolution of a highly compact binary stellar system, composed of a collapsed object and a low-mass secondary star, in the core of a globular cluster was calculated. The dynamics of the narrow line regions of Seyfert galaxies were investigated. New calculations of the soft x-ray opacity of gas having cosmic elemental abunances were developed for a variety of ionization …

During the past year we have completed our characterization of the factors that control the structure of fully oxidized W and Mo on silica and have established that support hydroxyl groups play a central role in dispersing and attaching cations to the support oxide. Work with M[sub 2](CO)[sub 4]Cp[sub 2](M[sub 2]=MoMo, WW, MoW) system has been very encouraging and continues to support the notion that it may be possible to control the structure of adsorbed catalysts (in this case generate metal dimers) by use of organometallic precursors. Techniques are being developed necessary to employ XPS as a means to characterize the attachment process and the oxidation state of the cations after various thermal and photolytic reduction steps.

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This report provides a brief overview of the transition underway in Egypt and information on U.S. foreign aid to Egypt. U.S. policy toward Egypt has long been framed as an investment in regional stability, built primarily on long-running military cooperation and sustaining the March 1979 Egyptian-Israeli peace treaty. Successive U.S. Administrations have viewed Egypt's government as a moderating influence in the Middle East. U.S. policy makers are now grappling with complex questions about the future of U.S.-Egypt relations and these debates are likely to influence consideration of appropriations and authorization legislation in the 112th Congress.

This report analyzes war funding for the Department of Defense (DOD) and tracks funding for USAID and Veteran's Affairs (VA) Medical funding. Information on costs helps Congress to assess the FY2010 Supplemental for war costs for the Department of Defense (DOD) and State/USAID FY2011 war requests; conduct oversight of past war costs; and consider the longer-term costs implications of the buildup of troops in Afghanistan and potential problems in the withdrawal of U.S. troops from Iraq.

This report discusses the Iraqi debt problem in three parts: [1] overview of the Iraq debt situation following the ouster of the Saddam regime; [2] subsequent debt relief negotiations and their resolution; [3] possible implications for future debt relief cases that arise from Iraq's experience. The implications are: a willingness by the international community to grant a stay on the enforcement of creditor rights; an increased flexibility in Paris Club debt relief decisions; and an unwillingness by successor regimes to claim that their debt is odious and repudiate it.

This report covers the 2007 Department of Defense (DOD) major procurement initiative to replace most up-armored High Mobility, Multi-Wheeled Vehicles (HMMWVs) with Mine-Resistant, Ambush-Protected (MRAP) vehicles. It looks at the cost and subsequent budgets of this initiative. Among potential issues for congressional consideration are the status of older, unused MRAPS in Afghanistan that are reportedly not being used because of their size and weight; possible redundancies with the MRAP, M-ATV, and the Joint Light Tactical Vehicle (JLTV) programs; and actual Marine M-ATV requirements.

This report provides a detailed analysis of contractor personnel trends and contracting dollars obligated in U.S. Central Command (CENTCOM), Afghanistan, and Iraq.

This report discusses major judicial opinions concerning suspected enemy belligerents detained in the conflict with Al Qaeda and the Taliban. The report addresses all Supreme Court decisions concerning enemy combatants. It also discusses notable circuit court opinions addressing issues of ongoing relevance.

This report discusses mechanisms used to continue appropriations in the absence of enactment of regular appropriations acts and to complete the annual appropriations process. Completion of appropriations after the beginning of each fiscal year may cause agencies to delay or cancel some planned research and development (R&D) projects and equipment acquisition.

This report provides a graphical overview of historical trends in discretionary budget authority (BA) from FY1976 through FY2011, enacted levels for FY2012 spending, and the levels consistent with President Obama's proposals for FY2013 through FY2017. It also includes a background on functional categories and a section discussing historical spending trends.

This report gives a map of current commercial nuclear power plants and their relation to seismic hazards.

The 100-C project is to be located adjacent to the present 100-P Area. It is planned to build an addition to the present 181-B River Pump House using the same elevations for pump settings, intakes, and floors as for the present pump house, thus maintaining the same suction conditions and flood protection as B Area. The 105 Building will be located on higher ground than B Area and, therefore, protection against possible flood damage is assured.

The factors responsible for the advances of 100-X compared with the older areas are: Simplification of the process, such as elimination of separate process water clearwells, by having the filtered water reservoirs perform that function. Combination of separate buildings into one building, such as combining filter pump house and process pump house. Use of electric standby. Use of higher capacity pumps and filter basins, and so fewer number of units. Centralization of control and operation. More compact arrangement of plant components. Use of waste heat for space heating, recovered from reactor effluent, backed up by steam plant.

Abstract: "A possible mechanism for the generation of magneto-hydrodynamic whirl rings near the center of the sun is described. The organic relation of the reflection of these whirl rings at the surface of the sun to the cooling of sunspots, orientation, and polarity sequence of sunspots, prominences, flares, and faculae is delineated."

During the past year further progress was made on preparations for the Spectra Technology, Inc. (STI) inverse Cerenkov acceleration (ICA) experiment to be performed on the Accelerator Test Facility (ATF) at Brookhaven National Laboratory. Major progress was made in the design and fabrication of the experimental apparatus. This includes the gas cell, where the ICA process occurs, and the optical system that converts the CO{sub 2} laser beam into a radially polarized beam. In terms of progress on theoretical work, the authors finished optimizing the ATF ICA design parameters using their Monte Carlo computer simulation. The optimized design predicts for the ATF conditions that over 50% energy gain should be observed. They published a paper on an improved method of performing ICA by operating near the resonance of a gas. They also began analysis of a method of accelerating particles in a vacuum using a radially polarized beam and axicon focusing. Although this new method can no longer be considered ICA, it has the potential of high acceleration gradients without the drawbacks of gas scattering and gas breakdown. Three papers were published and two conference papers were presented during 1990.

The 100-C project is to be located adjacent to the present 100-B Area. It is planned to build an addition to the present 181-B river pump house using the same elevations for pump settings, intakes, and floors as for the present pump house, thus maintaining the same suction conditions and flood protection as B Area. The 105 Building will be located on higher ground than B Area and therefore, protection against possible flood damage is assured. This report is divided into the following sections: (1) general description of project; (2) addition to existing river pump house; (3) raw water lines from 181-B addition to 183-C lead house; (4) the 183-C filter plant; (5) 190-C process pump house; (6) power house addition; (7) high tanks; (8) retention basins; (9) outside streamlines; (10) primary substation; (11) outside underground lines; (12) outside electric lines; (13) roads, railroads, walks, fences; (14) structural design of all buildings; and (15) architectural design of all buildings.

Two computer codes (1- and 6-node models) were used in the calculations. For the 1-node model, standard reactor kinetics,heat transfer, and instrument delay equations were programmed for analog and digital computers; effects of full-pile reactivity insertions were calculated. The 6-node model contains the time-dependent diffusion equations and heat transfer and instrument delay equations; it was programmed for the analog computer only, and was used to calculate effects of local reactivity insertions. Three types of protection had to be provided: period, rate, and level. The reactors covered include B, D, DR, F, C, H, and K. Results indicate that if the rod system withdrawal speed was reduced, the Zone Temperature Monitor would meet the established criteria over an adequate high level range, whereas the ability of a percentage trip instrument to meet the criteria would be unduly dependent on procedure. The conclusions relative to the older reactors should apply qualitatively to K reactor high-level protection.

The Y-12 Plant, K-25 Site, and ORNL are managed by DOE`s Operating Contractor (OC), Martin Marietta Energy Systems, Inc. (Energy Systems) for DOE. Operation associated with the facilities by the Operating Contractor and subcontractors, DOE contractors and the DOE Federal Building result in the generation of industrial solid wastes as well as construction/demolition wastes. Due to the waste streams mentioned, the Y-12 Industrial Waste Landfill IV (IWLF-IV) was developed for the disposal of solid industrial waste in accordance to Rule 1200-1-7, Regulations Governing Solid Waste Processing and Disposal in Tennessee. This revised operating document is a part of a request for modification to the existing Y-12 IWLF-IV to comply with revised regulation (Rule Chapters 1200-1-7-.01 through 1200-1-7-.08) in order to provide future disposal space for the ORR, Subcontractors, and the DOE Federal Building. This revised operating manual also reflects approved modifications that have been made over the years since the original landfill permit approval. The drawings referred to in this manual are included in Drawings section of the package. IWLF-IV is a Tennessee Department of Environmental and Conservation/Division of Solid Waste Management (TDEC/DSWM) Class 11 disposal unit.