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open access

Zimbabwe's Political Transition: Issues for Congress

Description: This report discusses the resignation of Zimbabwean President Robert Mugabe after a military intervention and the installation of one of his former vice-presidents, Emmanuel Mnangagwa as interim President. Various possible outcomes of the change and possible actions by Congress to advance U.S. interests in the region are discussed.
Date: November 22, 2017
Creator: Cook, Nicolas & Terrell, Katherine Z.
Item Type: Refine your search to only Report
open access

Zinc distribution and speciation in Arabidopsis halleri x Arabidops is lyrata progenies presenting various zinc accumulation capacities

Description: - The purpose of this study was to investigate the relationship between the chemical form and localization of zinc (Zn) in plant leaves and their Zn accumulationcapacity. - An interspecific cross between Arabidopsis halleri sp. halleri and Arabidopsis lyrata sp. petrea segregating for Zn accumulation was used. Zinc (Zn) speciation and Zn distribution in the leaves of the parent plants and of selected F1 and F2 progenies were investigated by spectroscopic and microscopic techniques and chemical … more
Date: April 8, 2010
Creator: Sarret, Geraldine; Willems, Glenda; Isaure, Marie-Pierre; Marcus, Matthew A.; Fakra, Sirine C.; Frerot, Helene et al.
Item Type: Refine your search to only Article
open access

ZINC MITIGATION INTERIM REPORT - THERMODYNAMIC STUDY

Description: An experimental program was initiated in order to develop and validate conditions that will effectively trap Zn vapors that are released during extraction. The proposed work is broken down into three tasks. The first task is to determine the effectiveness of various pore sizes of filter elements. The second task is to determine the effect of filter temperature on zinc vapor deposition. The final task is to determine whether the zinc vapors can be chemically bound. The approach for chemically bi… more
Date: December 17, 2010
Creator: Korinko, P.
Item Type: Refine your search to only Report
open access

Zivotofsky v. Kerry: The Jerusalem Passport Case

Description: This report briefly describes legislative efforts to modify U.S. policy with respect to Jerusalem, in particular multiple enactments of the passport provision. The report summarizes the appellate court's opinion finding the passport measure unconstitutional and presents brief synopses of the petitioner's argument before the Supreme Court, the Secretary of State's brief in response, and briefs of amici curiae submitted by the Senate (pursuant to S.Res. 504) and by some Members of the House of Re… more
Date: October 30, 2014
Creator: Elsea, Jennifer K.
Item Type: Refine your search to only Report
open access

Zivotofsky v. Kerry: The Jerusalem Passport Case and Its Potential Implications for Congress's Foreign Affairs Powers

Description: This report briefly describes legislative efforts to modify U.S. policy with respect to Jerusalem, in particular multiple enactments of the passport provision. The report then summarizes the Supreme Court decision, including concurrences and dissents. Finally, the report concludes by suggesting possible implications of the decision with respect to Congress's authority to influence foreign affairs.
Date: September 28, 2015
Creator: Elsea, Jennifer K.
Item Type: Refine your search to only Report
open access

ZnMgO by APCVD Enabling High-Performance Mid-bandgap CIGS on Polyimide Modules: October 2009--October 2010

Description: This Pre-Incubator project was designed to increase the 'real world' CIGS based photovoltaic module performance and decrease the Levelized Cost of Energy (LCOE) of systems utilizing those modules compared to our traditional CIGS based photovoltaic modules. This was enabled by a) increasing the CIGS bandgap and b) developing better matched device finishing layers to the mid-bandgap CIGS based photovoltaics; including window and buffer layers (and eventually the TCO). Incremental progress in the … more
Date: April 1, 2011
Creator: Woods, L.
Item Type: Refine your search to only Report
open access

Zonal Flow as Pattern Formation: Merging Jets and the Ultimate Jet Length Scale

Description: Zonal flows are well known to arise spontaneously out of turbulence. It is shown that for statisti- cally averaged equations of quasigeostrophic turbulence on a beta plane, zonal flows and inhomoge- neous turbulence fit into the framework of pattern formation. There are many implications. First, the zonal flow wavelength is not unique. Indeed, in an idealized, infinite system, any wavelength within a certain continuous band corresponds to a solution. Second, of these wavelengths, only those wit… more
Date: January 30, 2013
Creator: Krommes, Jeffrey B. Parker and John A.
Item Type: Refine your search to only Report
open access

Zone Freezing Study for Pyrochemical Process Waste Minimization

Description: Pyroprocessing technology is a non-aqueous separation process for treatment of used nuclear fuel. At the heart of pyroprocessing lies the electrorefiner, which electrochemically dissolves uranium from the used fuel at the anode and deposits it onto a cathode. During this operation, sodium, transuranics, and fission product chlorides accumulate in the electrolyte salt (LiCl-KCl). These contaminates change the characteristics of the salt overtime and as a result, large volumes of contaminated sal… more
Date: May 1, 2012
Creator: Williams, Ammon
Item Type: Refine your search to only Report
open access

ZPR-3 Assembly 11 : A cylindrical sssembly of highly enriched uranium and depleted uranium with an average {sup 235}U enrichment of 12 atom % and a depleted uranium reflector.

Description: Over a period of 30 years, more than a hundred Zero Power Reactor (ZPR) critical assemblies were constructed at Argonne National Laboratory. The ZPR facilities, ZPR-3, ZPR-6, ZPR-9 and ZPPR, were all fast critical assembly facilities. The ZPR critical assemblies were constructed to support fast reactor development, but data from some of these assemblies are also well suited for nuclear data validation and to form the basis for criticality safety benchmarks. A number of the Argonne ZPR/ZPPR crit… more
Date: September 30, 2010
Creator: Lell, R. M.; McKnight, R. D.; Tsiboulia, A.; Rozhikhin, Y.; Security, National & Engineering, Inst. of Physics and Power
Item Type: Refine your search to only Report
open access

ZPR-3 Assembly 12 : A Cylindrical Assembly of Highly Enriched Uranium, Depleted Uranium and Graphite With an Average {Sup 235}U Enrichment of 21 Atom %.

Description: Over a period of 30 years, more than a hundred Zero Power Reactor (ZPR) critical assemblies were constructed at Argonne National Laboratory. The ZPR facilities, ZPR-3, ZPR-6, ZPR-9 and ZPPR, were all fast critical assembly facilities. The ZPR critical assemblies were constructed to support fast reactor development, but data from some of these assemblies are also well suited for nuclear data validation and to form the basis for criticality safety benchmarks. A number of the Argonne ZPR/ZPPR crit… more
Date: September 30, 2010
Creator: Lell, R. M.; McKnight, R. D.; Perel, R. L.; Wagschal, J. J.; Division, Nuclear Engineering & Physics, Racah Inst. of
Item Type: Refine your search to only Report
open access

ZPR-3 Assembly 6f : A Spherical Assembly of Highly Enriched Uranium, Depleted Uranium, Aluminum and Steel With an Average {Sup 235}U Enrichment of 47 Atom %.

Description: Over a period of 30 years, more than a hundred Zero Power Reactor (ZPR) critical assemblies were constructed at Argonne National Laboratory. The ZPR facilities, ZPR-3, ZPR-6, ZPR-9 and ZPPR, were all fast critical assembly facilities. The ZPR critical assemblies were constructed to support fast reactor development, but data from some of these assemblies are also well suited for nuclear data validation and to form the basis for criticality safety benchmarks. A number of the Argonne ZPR/ZPPR crit… more
Date: September 30, 2010
Creator: Lell, R. M.; McKnight, R. D; Schaefer, R. W. & Division, Nuclear Engineering
Item Type: Refine your search to only Report
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