This is a report on the MIT High Gradient Accelerator Research program which has included: Operation of the 17 GHz, 25 MeV MIT/Haimson Research Corp. electron accelerator at MIT, the highest frequency, stand-alone accelerator in the world; collaboration with members of the US High Gradient Collaboration, including the design and test of novel structures at SLAC at 11.4 GHz; the design, construction and testing of photonic bandgap structures, including metallic and dielectric structures; the investigation of the wakefields in novel structures; and the training of the next generation of graduate students and postdoctoral associates in accelerator physics.

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

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

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Weekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.

Weekly newspaper from Brownwood, Texas that includes local, state and national news along with advertising.

Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.

Weekly newspaper from Coleman, Texas that includes local, state, and national news along with advertising.

Report that summarizes major immigration reform provisions of S. 744, as passed by the Senate.

Eulerian hydrodynamical simulations are a powerful and popular tool for modeling fluids in astrophysical systems. In this work, we critically examine recent claims that these methods violate Galilean invariance of the Euler equations. We demonstrate that Eulerian hydrohynamics methods do converge to a Galilean-invariant solution,provided a well-defined convergent solutions exists. Specifically, we show that numerical diffusion, resulting from diffusion-like terms in the discretized hydrodynamical equations solved by Eulerian methods, accounts for the effects previously identified as evidence for the Galilean non-inveriance of these methods. These velocity-dependent diffusive terms lead to different results for different bulk velocities when the spatial resolution of the simulation is kept fixed, but their effect become negligible as the resolution of the simulation is increased to obtain a converged solution. In particular, we find that Kelvin-Helmholtz instabilities develop properly in realistic Eulerian calculations regardless of the bulk velocity provided the problem is simulated with sufficient resolution (a factor of 2-4 increase compared to the case without bulk flows for realistic velocities). Our results reiterate that high-resolution Eulerian methods can perform well and obtain a convergent solution, even in the presence of highly supersonic bulk flows.

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Weekly newspaper from Cuero, Texas that includes local, state and national news along with advertising.

News release about the appointment of Amanda Moreno Cross to the DART board of directors, representing the city of Dallas.

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

This study evaluates the removal of mercury from wastewater using chemical reduction and air stripping using a full-scale treatment system at the Savannah River Site. The existing water treatment system utilizes air stripping as the unit operation to remove organic compounds from groundwater that also contains mercury (C ~ 250 ng/L). The baseline air stripping process was ineffective in removing mercury and the water exceeded a proposed limit of 51 ng/L. To test an enhancement to the existing treatment modality a continuous dose of reducing agent was injected for 6-hours at the inlet of the air stripper. This action resulted in the chemical reduction of mercury to Hg(0), a species that is removable with the existing unit operation. During the injection period a 94% decrease in concentration was observed and the effluent satisfied proposed limits. The process was optimized over a 2-day period by sequentially evaluating dose rates ranging from 0.64X to 297X stoichiometry. A minimum dose of 16X stoichiometry was necessary to initiate the reduction reaction that facilitated the mercury removal. Competing electron acceptors likely inhibited the reaction at the lower 1 doses, which prevented removal by air stripping. These results indicate that chemical reduction coupled with air stripping …

A letter report issued by the Government Accountability Office with an abstract that begins "In fiscal year 2011, two agencies--the Departments of Health and Human Services (HHS) and Justice (Justice) --separately administered 12 fragmented but minimally overlapping programs that directed funds toward elder justice, with low risk of duplication. Specifically, because more than one federal agency administers these programs, GAO found that these grant programs are fragmented. Further, GAO found that overlap across the 12 programs was minimal because the programs varied with respect to (1) funding mechanisms and recipients, (2) elder abuse victims targeted, (3) service providers, and (4) activities conducted. For example, a few of these programs provided formula grants to all states and most dispersed discretionary grants to a limited number of recipients. Programs that supported victims of elder abuse generally assisted all types of victims, but some also focused on certain subgroups, such as older women. Some programs that assisted service providers also targeted specific subgroups, such as judges and court personnel. In addition, elder justice programs supported a wide range of activities. For example, one HHS program provided public education to help identify and prevent elder abuse, while a Justice program trained law enforcement officers …

Weekly newspaper from Elgin, Texas that includes local, state, and national news along with advertising.

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

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Weekly newspaper from Navasota, Texas that includes local, state, and national news along with advertising.

Report for the University of North Texas (UNT) Libraries proposing new methods and ideas for displaying online exhibits.

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