This quarter, we have focused on several tasks: (1) Building a high-quality catalog of earthquake source parameters for the Middle East and East Asia. In East Asia, we computed source parameters using the CAP method for a set of events studied by Herrman et al., (MRR, 2006) using a complete waveform technique. Results indicated excellent agreement with the moment magnitudes in the range 3.5 -5.5. Below magnitude 3.5 the scatter increases. For events with more than 2-3 observations at different azimuths, we found good agreement of focal mechanisms. Depths were generally consistent, although differences of up to 10 km were found. These results suggest that CAP modeling provides estimates of source parameters at least as reliable as complete waveform modeling techniques. However, East Asia and the Yellow Sea Korean Paraplatform (YSKP) region studied are relatively laterally homogeneous and may not benefit from the CAP method’s flexibility to shift waveform segments to account for path-dependent model errors. A more challenging region to study is the Middle East where strong variations in sedimentary basin, crustal thickness and crustal and mantle seismic velocities greatly impact regional wave propagation. We applied the CAP method to a set of events in and around Iran and …

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.

This report discusses in detail the America COMPETES Act, including the funding increases authorized by the act for various relevant institutions; the act's education activities intended to enhance the skills of STEM educators; and if Congress will continue to similarly fund the America COMPETES Act in the FY2010 budget.

This report provides an overview of the America COMPETES Act provisions, summarizes its legislative origin and the origins of some of the new programs it authorizes, analyzes selected America COMPETES Act programs that are the focus of appropriation discussions, and provides a comparison of the President's budget, congressional appropriations, and America COMPETES Act authorization levels for FY2008.

This report discusses the recent emissions estimates with the greenhouse gas (GHG) and addresses the question, are carbon dioxide emissions rising more rapidly than expected?

At least one recent report and numerous news articles suggest that carbon dioxide (CO2) emissions are rising more rapidly than expected. While CO2 emissions associated with human activities continue to rise -- and may be worthy of alarm because of their influence on climate change -- any short-term comparisons between actual emissions and the Intergovernmental Panel on Climate Change (IPCC) scenarios miss the mark. This report analyzes this issue and the issues associated with IPCC scenarios and trajectories. It also describes the importance of monitoring CO2 emissions and analyzing the factors and forces behind increasing CO2 emissions.

The Next Generation Nuclear Plant (NGNP), which is an advanced high temperature gas reactor (HTGR) concept with emphasis on production of both electricity and hydrogen, involves helium as the coolant and a closed-cycle gas turbine for power generation with a core outlet/gas turbine inlet temperature of 900-1000 C. In the indirect cycle system, an intermediate heat exchanger is used to transfer the heat from primary helium from the core to the secondary fluid, which can be helium, nitrogen/helium mixture, or a molten salt. The system concept for the vary high temperature reactor (VHTR) can be a reactor based on the prismatic block of the GT-MHR developed by a consortium led by General Atomics in the U.S. or based on the PBMR design developed by ESKOM of South Africa and British Nuclear Fuels of U.K. This report has made an assessment on the issues pertaining to the intermediate heat exchanger (IHX) for the NGNP. A detailed thermal hydraulic analysis, using models developed at ANL, was performed to calculate heat transfer, temperature distribution, and pressure drop. Two IHX designs namely, shell and straight tube and compact heat exchangers were considered in an earlier assessment. Helical coil heat exchangers were analyzed in the …

After instability during the late 1990s, Bahrain undertook substantial political reforms, but the Shiite majority continues to simmer over the Sunni-led government's perceived manipulation of laws and regulations to maintain its grip on power. Bahrain's stability has long been a key U.S. interest; it has hosted U.S. naval headquarters for the Gulf for nearly 60 years. In September 2004, the United States and Bahrain signed a free trade agreement (FTA).

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.

The migration of biogeochemical gradients is a useful framework for understanding the evolution of biogeochemical conditions in groundwater at waste sites contaminated with metals and radionuclides. This understanding is critical to selecting sustainable remedies and evaluating sites for monitored natural attenuation, because most attenuation mechanisms are sensitive to geochemical conditions such as pH and redox potential. Knowledge of how gradients in these parameters evolve provides insights into the behavior of contaminants with time and guides characterization, remedy selection, and monitoring efforts. An example is a seepage basin site at the Savannah River Site in South Carolina where low-level acidic waste has seeped into groundwater. The remediation of this site relies, in part, on restoring the natural pH of the aquifer by injecting alkaline solutions. The remediation will continue until the pH up-flow of the treatment zone increases to an acceptable value. The time required to achieve this objective depends on the time it takes the trailing pH gradient, the gradient separating the plume from influxing natural groundwater, to reach the treatment zone. Predictions of this length of time will strongly influence long-term remedial decisions.

Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.

Weekly newspaper from Dallas, Texas that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.

This report first discusses the current state of the economy, including measures that have already been taken by the monetary authorities, and assesses the need for and potential consequences of fiscal stimulus. The second part of the report reviews the proposals discussed during debate on the recently enacted fiscal stimulus, both those adopted and those considered but not adopted. The various stimulus packages differed somewhat, and the report briefly describes those differences. This section also includes a discussion of the potential elements of a second stimulus proposal, and concludes with a discussion of the macroeconomic effects of the proposals. The final section of the paper discusses recent and proposed financial interventions.

This report Traces the Legislative history of the Economic Growth and Tax Relief Reconciliation Act of 2001 and its extensions, shows their time line, and Provides a general overview of their implications and revenue effects.

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.

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Accelerator facility upgrades, new accelerator applications, and future design efforts are leading to novel klystron and IOT device concepts, including multiple beam, high-order mode operation, and new geometry configurations of old concepts. At the same time, a new simulation capability, based upon finite-difference “cut-cell” boundaries, has emerged and is transforming the existing modeling and design capability with unparalleled realism, greater flexibility, and improved accuracy. This same new technology can also be brought to bear on a difficult-to-study aspect of the energy recovery linac (ERL), namely the accurate modeling of the exit beam, and design of the beam dump for optimum energy efficiency. We have developed new capability for design calculations and modeling of a broad class of devices which convert bunched beam kinetic energy to RF energy, including RF sources, as for example, klystrons, gyro-klystrons, IOT's, TWT’s, and other devices in which space-charge effects are important. Recent advances in geometry representation now permits very accurate representation of the curved metallic surfaces common to RF sources, resulting in unprecedented simulation accuracy. In the Phase I work, we evaluated and demonstrated the capabilities of the new geometry representation technology as applied to modeling and design of output cavity components of klystron, IOT's, …

The developed software consists of two parts: FSML and VizSchema. FSML is based on an XML schema that represents the visualization entities needed for displaying fields and particles data in visualization tools. Each application is then represented by an XML instance mapping its data into the XML schema. Such XML file is used by the FSML reading library to bring in fields, particles and meshes from HDF5 files into memory. Based on this library, we developed AVS/Express and VisIt plugins. The second (more flexible) part of the software is called VizSchema. It consists of the schema expressed as a set of conventions and static data in the VizSchema code. The conventions describe the markup and organization of HDF5 data that would allow easy interpretation of data in the visualization terms. Based on theses conventions, a C++ HDF5-specific API for reading the visualization data was created. Finally, based on this library, we developed a new VisIt plugin (called Vs), which allows importing data from multiple applications using the markup. These applications include VORPAL, FACETS, UEDGE, NIMROD and MODAVE. The plugin will be included into the next releases of VisIt.

This report describes the gang problem in Central America, discusses country approaches to deal with the gangs, and analyzes U.S. policy with respect to gangs in Central America.

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.