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Numerical Modeling of CO2 Sequestration in Geologic Formations - Recent Results and Open Challenges

Description: Rising atmospheric concentrations of CO2, and their role inglobal warming, have prompted efforts to reduce emissions of CO2 fromburning of fossil fuels. An attractive mitigation option underconsideration in many countries is the injection of CO2 from stationarysources, such as fossil-fueled power plants, into deep, stable geologicformations, where it would be stored and kept out of the atmosphere fortime periods of hundreds to thousands of years or more. Potentialgeologic storage reservoirs inc… more
Date: March 8, 2006
Creator: Pruess, Karsten
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The Path of Carbon in Photosynthesis

Description: The dark fixation of carbon dioxide by green algae has been investigated and found to be closely related to photosynthesis fixation. By illumination in the absence of carbon dioxide followed by treatment with radioactive carbon dioxide in the dark, the amount fixed has been increased ten to twenty fold. This rate of maximum fixation approaches photosynthesis maximum rates. The majority of the radioactive products formed under these conditions have been identified and isolated and the distributi… more
Date: March 8, 1948
Creator: Calvin, M. & Benson, A. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Laboratory Measurements of 3 --> 2 X-ray Line Ratios of F-like Fe XVIII and Ni XX

Description: The intensity ratios of 3 {yields} 2 emission lines of Fe XVIII and Ni XX were measured on the Livermore electron beam ion trap (EBIT-I) with a flat-field grating spectrometer. The results were compared with distorted-wave (DW) calculations obtained with the Flexible Atomic Code and recent close-coupling calculations using the R-matrix code. The measured 3s {yields} 2p/3d {yields} 2p ratios are about 20-40% higher than the theoretical values. When more extended configuration interaction is incl… more
Date: March 8, 2007
Creator: Gu, M F; Chen, H; Brown, G V; Beiersdorfer, P & Kahn, S M
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Some Results Bearing on the Value of Improvements of Membranes for Reverse Osmosis

Description: This analysis evaluates the potential economic benefits that could result from the improvements in the permeability of membranes for reverse osmosis. The discussion provides a simple model of the operation of a reverse osmosis plant. It examines the change in the operation that might result from improvements in the membrane and computes the cost of water as a function of the membrane permeability.
Date: March 8, 2006
Creator: Lamont, A
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Intensity-based signal separation algorithm for accuratequantification of clustered centrosomes in tissue sections

Description: Centrosomes are small organelles that organize the mitoticspindle during cell division and are also involved in cell shape andpolarity. Within epithelial tumors, such as breast cancer, and somehematological tumors, centrosome abnormalities (CA) are common, occurearly in disease etiology, and correlate with chromosomal instability anddisease stage. In situ quantification of CA by optical microscopy ishampered by overlap and clustering of these organelles, which appear asfocal structures. CA has … more
Date: March 8, 2006
Creator: Fleisch, Markus C.; Maxell, Christopher A.; Kuper, Claudia K.; Brown, Erika T.; Parvin, Bahram; Barcellos-Hoff, Mary-Helen et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

X-ray absorption study of the electronic structure of Mn-doped amorphous Si

Description: The electronic structure of Mn in amorphous Si (a-Mn{sub x}Si{sub 1?x}) is studied by X-ray absorption spectroscopy at the Mn L{sub 3,2} edges for x = 0.005-0.18. Except the x = 0.005 sample, which shows a slight signature of Mn{sup 2+} atomic multiplets associated with a local Mn moment, all samples have broad and featureless L{sub 3,2} absorption peaks, corresponding to an itinerant state for all 3d electrons. The broad X-ray absorption spectra exclude the possibility of a localized 3d moment… more
Date: March 8, 2008
Creator: Arenholz, Elke; Zeng, Li; Huegel, A.; Helgren, E.; Hellman, F.; Piamonteze, C. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

First principles calculations of the effect of Pt on NiAl surfaceenergy and the site preference of Pt

Description: Pt-modified NiAl is widely used as a coating material in industry. In this study, the surface energies of NiAl with and without Pt are investigated using first-principles calculations. The presence of Pt in NiAl takes the surface electronic states to higher energies, resulting in an increased surface energy, which explains some of the beneficial effects of Pt on the oxidation resistance of NiAl. The electronic structure of NiAl-Pt alloys is also analyzed in terms of the site preference of Pt in… more
Date: March 8, 2007
Creator: Yu, Rong & Hou, Peggy Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Cryogenic Neutron Spectrometer Development

Description: Cryogenic microcalorimeter detectors operating at temperatures around {approx}0.1 K have been developed for the last two decades, driven mostly by the need for ultra-high energy resolution (<0.1%) in X-ray astrophysics and dark matter searches [1]. The Advanced Detector Group at Lawrence Livermore National Laboratory has developed different cryogenic detector technologies for applications ranging from X-ray astrophysics to nuclear science and non-proliferation. In particular, we have adapted… more
Date: March 8, 2006
Creator: Niedermayr, T.; Hau, I. D.; Friedrich, S.; Burger, A.; Roy, U. N. & Bell, Z. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

[News Script: Bad blood suit]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about a damage suit against the Medical Arts Hospital for killing Doris Elizabeth Smalley's husband due to a blood transfusion in which the wrong blood type was used.
Date: March 8, 1960
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Script
Partner: UNT Libraries Special Collections
open access

[News Script: Tunnel]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about a tunnel being constructed under the railroad tracks in the Dallas business district.
Date: March 8, 1960
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Script
Partner: UNT Libraries Special Collections
open access

[News Script: Gambling]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about allegations that Fort Worth police are not cleaning up local gambling.
Date: March 8, 1960
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Script
Partner: UNT Libraries Special Collections
open access

[News Script: 500 winner]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about winner of the Indianapolis 500, Roger Ward, visiting Fort Worth.
Date: March 8, 1960
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Script
Partner: UNT Libraries Special Collections
open access

[News Script: Billy Joe Ellis]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about Billy Joe Ellis, who is under a ten year term goes to visit the judge so he can go free while appealing his burglary conviction.
Date: March 8, 1960
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Script
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Black Dancers]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6pm.
Date: March 8, 1989
Duration: 57 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Roughed Up PKG]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6pm.
Date: March 8, 1989
Duration: 1 minute 28 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Experimental study of radium partitioning between anorthite and melt at 1 atm

Description: We present the first experimental radium mineral/melt partitioning data, specifically between anorthite and a CMAS melt at atmospheric pressure. Ion microprobe measurement of coexisting anorthite and glass phases produces a molar D{sub Ra} = 0.040 {+-} 0.006 and D{sub Ra}/D{sub Ba} = 0.23 {+-} 0.05 at 1400 C. Our results indicate that lattice strain partitioning models fit the divalent (Ca, Sr, Ba, Ra) partition coefficient data of this study well, supporting previous work on crustal melting an… more
Date: March 8, 2007
Creator: Miller, S.; Burnett, D.; Asimow, P.; Phinney, D. & Hutcheon, I.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: NCAA]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas to accompany a story about the beginning of the NCAA playoffs at Daniel-Meyer Coliseum.
Date: March 8, 1969
Duration: 1 minute 13 seconds
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Location: 32.709530 -97.362795
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Hughes]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas to accompany a story bout U. S. District Judge Sarah Hughes issuing a temporary restraining order which prohibits the Texas Department of Welfare from denying welfare payments to a Dallas mother, Betty Zavala. The story includes an interview with Mrs. Zavala, who is trying to receive social services while living with her children and relatives in their fire damaged home in Fort Worth.
Date: March 8, 1969
Duration: 2 minutes 43 seconds
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Location: 32.807855 -97.354758
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Fire]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas to accompany a story about Kelburg fire officials investigating the cause of a multi-alarm fire which destroyed the Oak Hill Auction Company.
Date: March 8, 1969
Duration: 48 seconds
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Security]

Description: Video footage from the KXAS-TV television station in Fort Worth, Texas, covering a news story.
Date: March 8, 1991, 6:00 p.m.
Duration: 1 minute 48 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Kidnapping]

Description: Video footage from the WBAP-TV television station in Fort Worth, Texas, covering a news story. This story aired at 10pm.
Date: March 8, 1991, 10:00 p.m.
Duration: 1 minute 16 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Wire grid beam-splitter for microwave diagnostics on MTX (Microwave Tokamak Experiment)

Description: A wire grid beam splitter for use in high-power microwave diagnostics is discussed. The principle application considered here is the Microwave Tokamak Experiment (140 GHz ECH using 35 ns FEL pulses of about 3 GW peak power, single pulse, with future upgrade to 250 GHz, 8 GW, 50 ns, and 5 kHz repetition rate). The theory of wire grids of infinite extent and excited by a uniform plane wave is extended to consider grids of finite extent and excited by field having a Gaussian distribution. Design c… more
Date: March 8, 1989
Creator: Lorbeck, J.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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