12 Matching Results

Results open in a new window/tab.

The Sulfur-Iodine Cycle: Process Analysis and Design Using Comprehensive Phase Equilibrium Measurements and Modeling (open access)

The Sulfur-Iodine Cycle: Process Analysis and Design Using Comprehensive Phase Equilibrium Measurements and Modeling

Of the 100+ thermochemical hydrogen cycles that have been proposed, the Sulfur-Iodine (S-I) Cycle is a primary target of international interest for the centralized production of hydrogen from nuclear power. However, the cycle involves complex and highly nonideal phase behavior at extreme conditions that is only beginning to be understood and modeled for process simulation. The consequence is that current designs and efficiency projections have large uncertainties, as they are based on incomplete data that must be extrapolated from property models. This situation prevents reliable assessment of the potential viability of the system and, even more, a basis for efficient process design. The goal of this NERI award (05-006) was to generate phase-equilibrium data, property models, and comprehensive process simulations so that an accurate evaluation of the S-I Cycle could be made. Our focus was on Section III of the Cycle, where the hydrogen is produced by decomposition of hydroiodic acid (HI) in the presence of water and iodine (I2) in a reactive distillation (RD) column. The results of this project were to be transferred to the nuclear hydrogen community in the form of reliable flowsheet models for the S-I process. Many of the project objectives were achieved. At Clemson …
Date: January 10, 2010
Creator: Thies, Mark C.; O'Connell, J. P. & Gorensek, Maximilian B.
Object Type: Report
System: The UNT Digital Library
Strain Induced Magnetism in SrRuO3 Epitaxial Thin Films (open access)

Strain Induced Magnetism in SrRuO3 Epitaxial Thin Films

Epitaxial SrRuO{sub 3} thin films were grown on SrTiO{sub 3}, (LaAlO{sub 3}){sub 0.3}(SrAlO{sub 3}){sub 0.7} and LaAlO{sub 3} substrates inducing different biaxial compressive strains. Coherently strained SrRuO{sub 3} films exhibit enhanced magnetization compared to previously reported bulk and thin film values of 1.1-1.6 {micro}{sub B} per formula unit. A comparison of (001) and (110) SrRuO{sub 3} films on each substrate indicates that films on (110) oriented have consistently higher saturated moments than corresponding (001) films. These observations indicate the importance of lattice distortions in controlling the magnetic ground state in this transitional metal oxide.
Date: January 10, 2010
Creator: Grutter, A.; Wong, F.; Arenholz, E.; Liberati, M. & Suzuki, Y.
Object Type: Article
System: The UNT Digital Library
Sweetwater Reporter (Sweetwater, Tex.), Vol. 112, No. 047, Ed. 1 Sunday, January 10, 2010 (open access)

Sweetwater Reporter (Sweetwater, Tex.), Vol. 112, No. 047, Ed. 1 Sunday, January 10, 2010

Daily newspaper from Sweetwater, Texas that includes local, state, and national news along with advertising.
Date: January 10, 2010
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Komrem Custom and Cultural Law, Sagang Area, Second Edition (open access)

Komrem Custom and Cultural Law, Sagang Area, Second Edition

Modified customary law, only to be followed by the Komrem people in Sagang area Churachanpur district of Manipur. Modification made after conversion into Christainity.
Date: January 10, 2010
Creator: Sagang Area Custom and Cultural Administration Committee Sagang Churachandpur Dist. Manipur
Object Type: Book
System: The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 112, No. 25, Ed. 1 Sunday, January 10, 2010 (open access)

The Altus Times (Altus, Okla.), Vol. 112, No. 25, Ed. 1 Sunday, January 10, 2010

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: January 10, 2010
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Express-Star (Chickasha, Okla.), Ed. 1 Sunday, January 10, 2010 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Sunday, January 10, 2010

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: January 10, 2010
Creator: Pittman, Jerry & Wray, Kelly
Object Type: Newspaper
System: The Gateway to Oklahoma History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 95, No. 82, Ed. 1 Sunday, January 10, 2010 (open access)

Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 95, No. 82, Ed. 1 Sunday, January 10, 2010

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date: January 10, 2010
Creator: Shance, Brenda
Object Type: Newspaper
System: The Gateway to Oklahoma History
Ghana, an Emergent Oil Producer: Background and U.S. Relations (open access)

Ghana, an Emergent Oil Producer: Background and U.S. Relations

This report provides information on current developments in Ghana and Ghanaian-U.S. relations, which are close.
Date: January 10, 2010
Creator: Cook, Nicolas
Object Type: Report
System: The UNT Digital Library
Polk County Enterprise (Livingston, Tex.), Vol. 128, No. 4, Ed. 1 Sunday, January 10, 2010 (open access)

Polk County Enterprise (Livingston, Tex.), Vol. 128, No. 4, Ed. 1 Sunday, January 10, 2010

Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date: January 10, 2010
Creator: Reddell, Valerie
Object Type: Newspaper
System: The Portal to Texas History
The Panola Watchman (Carthage, Tex.), Vol. 138, No. 3, Ed. 1 Sunday, January 10, 2010 (open access)

The Panola Watchman (Carthage, Tex.), Vol. 138, No. 3, Ed. 1 Sunday, January 10, 2010

Semiweekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.
Date: January 10, 2010
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Focus Report, Volume 81, Number 10, January 21, 2010 (open access)

Focus Report, Volume 81, Number 10, January 21, 2010

Report that reviews the purpose and methods of the U. S. Census and discusses its implications for Texas. It describes issues surrounding how people are counted and the potential effects of 2010 Census results on the redistricting of congressional and state legislative seats.
Date: January 10, 2010
Creator: Texas. Legislature. House of Representatives. Research Organization.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
On the effect of x-ray irradiation on the deformation and fracture behavior of human cortical bone (open access)

On the effect of x-ray irradiation on the deformation and fracture behavior of human cortical bone

In situ mechanical testing coupled with imaging using high-energy synchrotron x-ray diffraction or tomography imaging is gaining in popularity as a technique to investigate micrometer and even sub-micrometer deformation and fracture mechanisms in mineralized tissues, such as bone and teeth. However, the role of the irradiation in affecting the nature and properties of the tissue is not always taken into account. Accordingly, we examine here the effect of x-ray synchrotron-source irradiation on the mechanistic aspects of deformation and fracture in human cortical bone. Specifically, the strength, ductility and fracture resistance (both work-of-fracture and resistance-curve fracture toughness) of human femoral bone in the transverse (breaking) orientation were evaluated following exposures to 0.05, 70, 210 and 630 kGy irradiation. Our results show that the radiation typically used in tomography imaging can have a major and deleterious impact on the strength, post-yield behavior and fracture toughness of cortical bone, with the severity of the effect progressively increasing with higher doses of radiation. Plasticity was essentially suppressed after as little as 70 kGy of radiation; the fracture toughness was decreased by a factor of five after 210 kGy of radiation. Mechanistically, the irradiation was found to alter the salient toughening mechanisms, manifest by the …
Date: January 10, 2010
Creator: Barth, Holly D.; Launey, Maximilien E.; McDowell, Alastair A.; Ager, Joel W., III & Ritchie, Robert O.
Object Type: Article
System: The UNT Digital Library