Fotografía de una vaca marrón con la cara blanca de pie bajo un árbol sin vegetación. Su ternero bronceado está delante de ella. A su derecha hay otra vaca marrón con la cara blanca

We examined the potential use of standard optimization algorithms as implemented in the inverse modeling code iTOUGH2 (Finsterle, 1999abc) for the solution of aquifer remediation problems. Costs for the removal of dissolved or free-phase contaminants depend on aquifer properties, the chosen remediation technology, and operational parameters (such as number of wells drilled and pumping rates). A cost function must be formulated that may include actual costs and hypothetical penalty costs for incomplete cleanup; the total cost function is therefore a measure of the overall effectiveness and efficiency of the proposed remediation scenario. The cost function is then minimized by automatically adjusting certain decision or operational parameters. We evaluate the impact of these operational parameters on remediation using a three-phase, three-component flow and transport simulator, which is linked to nonlinear optimization routines. We demonstrate that the methods developed for automatic model calibration are capable of minimizing arbitrary cost functions. An example of co-injection of air and steam makes evident the need for coupling optimization routines with an accurate state-of-the-art process simulator. Simplified models are likely to miss significant system behaviors such as increased downward mobilization due to recondensation of contaminants during steam flooding, which can be partly suppressed by the co-injection …

Fotografía de una mesa de comedor redonda con cuatro sillas y una calabaza decorada en el centro. Sobre la mesa aparecen varios platos, tazas y utensilios envueltos.

Photograph of wicker chairs stacked on top of a green-tiled and wooden desk. In front of the desk is a matching chair, with a crockpot on top of it. A dark chair to the right holds a few loose books on display.

Aerial photograph of the Texas landscape showing hills, a lake, and surrounding vegetation. Part of the airplane is visible in the right side of the photograph.

This report contains a summary of work conducted and results produced under the auspices of award DE-FC26-00NT40921, ''DOE Three-Dimensional Structure and Physical Properties of a Methane Hydrate Deposit and Gas Reservoir, Blake Ridge.'' This award supported acquisition, processing, and interpretation of two- and three-dimensional seismic reflection data over a large methane hydrate reservoir on the Blake Ridge, offshore South Carolina. The work supported by this project has led to important new conclusions regarding (1) the use of seismic reflection data to directly detect methane hydrate, (2) the migration and possible escape of free gas through the hydrate stability zone, and (3) the mechanical controls on the maximum thickness of the free gas zone and gas escape.

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

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

None

None

None

None

Una fotografía de una exposición dentro del Museo Histórico del Condado de Llano. La exposición incluye una titulada " Los primeros días de Llano". En el fondo de la imagen, una mujer habla con alguien detrás de un escritorio.

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

The present paper reviews the use of expressed protein ligation for the biosynthesis of backbone cyclic polypeptides. This general method allows the in vivo and in vitro biosynthesis of cyclic polypeptides using recombinant DNA expression techniques. Biosynthetic access to backbone cyclic peptides opens the possibility to generate cell-based combinatorial libraries that can be screened inside living cells for their ability to attenuate or inhibit cellular processes.

Photograph showing the exterior of Llano Historical Museum. Several pumpkins and scarecrows are visible in front of the building. There is a sign on top of the building with the text "Llano Historical Museum". A bridge and car can be seen in the distance.

A record on the former and current winners of the Frank W. Mayborn Award for Community Leadership, that dates back to 1992 and goes until 2005. The record names the winner as well as the newspaper company they work for.

A photograph of a furnished living room that opens to a dining room. There are decorations on and above the fireplace mantel, as well as on top of the table in the dining room. Both rooms are decorated for fall, using rich oranges and golds.

Fotografía de un comedor con una mesa y cuatro sillas. La mesa está puesta y la habitación está decorada para el otoño, con ricos colores naranja, rojo y dorado.

A photograph of a furnished living room that opens to a dining room. There are decorations on and above the fireplace mantel, as well as on top of the table in the dining room. Both rooms are decorated for fall, using rich oranges and golds.

Weekly newspaper from Garber, Oklahoma that includes local, state, and national news along with advertising.

Aerial photograph of the Texas landscape showing hills, rock formations, and surrounding vegetation. The entire photograph has a bluish-green tint.

Aerial photograph of Texas landscape including hills and vegetation.

High-energy-density (HED) physics refers broadly to the study of macroscopic collections of matter under extreme conditions of temperature and density. The experimental facilities most widely used for these studies are high-power lasers and magnetic-pinch generators. The HED physics pursued on these facilities is still in its infancy, yet new regimes of experimental science are emerging. Examples from astrophysics include work relevant to planetary interiors, supernovae, astrophysical jets, and accreting compact objects (such as neutron stars and black holes). In this paper, we will review a selection of recent results in this new field of HED laboratory astrophysics and provide a brief look ahead to the coming decade.