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Innovative Concepts Phase I: Inorganic Membranes for CO2/N2 Separation

Description: Silica membranes were prepared using a novel technique of catalyzed-atomic layer deposition of silica within a mesoporous matrix. Pyridine was used to catalyze the silicon chloride attachment to the hydroxylated silica surface at room temperature. This half-reaction was followed by the hydration of the surface with water regenerating surface hydroxyls and completing one reaction cycle. The technique resulted in the self-limited pore size reduction of the mesoporous matrix to pore sizes near 1 n… more
Date: September 23, 2003
Creator: Desisto, William
Partner: UNT Libraries Government Documents Department
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Renewal of Collaborative Research: Economically viable Forest Harvesting Practices that Increase Carbon Sequestration

Description: This technical report covers a 3-year cooperative agreement between the University of Maine and the Northeastern Forest Experiment Station that focused on the characterization of forest stands and the assessment of forest carbon storage (see attached for detailed description of the project). The goal of this work was to compare estimates of forest C storage made via remeasurement of FIA-type plots with eddy flux measurements. In addition to relating whole ecosystem estimates of carbon storage t… more
Date: August 2, 2012
Creator: Dail, David Bryan
Partner: UNT Libraries Government Documents Department
open access

Mill Integration-Pulping, Stream Reforming and Direct Causticization for Black Liquor Recovery

Description: MTCI/StoneChem developed a steam reforming, fluidized bed gasification technology for biomass. DOE supported the demonstration of this technology for gasification of spent wood pulping liquor (or 'black liquor') at Georgia-Pacific's Big Island, Virginia mill. The present pre-commercial R&D project addressed the opportunities as well as identified negative aspects when the MTCI/StoneChem gasification technology is integrated in a pulp mill production facility. The opportunities arise because… more
Date: June 30, 2007
Creator: van Heiningen, Adriaan
Partner: UNT Libraries Government Documents Department
open access

Solar Energy of the North

Description: The concept of this project was to design a solar array that would not only provide electricity for the major classroom building of the campus but would also utilize that electricity to enhance the learning environment. It was also understood that the project would be a research and data gathering project.
Date: January 12, 2012
Creator: Finance, Davis St. Peter Director of Faclities ( retired) Charles Bonin Vice President of Administration &
Partner: UNT Libraries Government Documents Department
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Reduction and Immobilization of Radionuclides and Toxic Metal Ions Using Combined Zero Valent Iron and Anaerobic Bacteria

Description: The use of zero valent iron, permeable reactive barriers (PRBs) for groundwater remediation continues to increase. AN exciting variation of this technology involves introducing anaerobic bacteria into these barriers so that both biological and abiotic pollutant removal processes are functional. This work evaluated the hypothesis that a system combining a mixed culture of sulfate reducing bacteria (SRB) with zero valent iron would have a greater cr(VI) removal efficiency and a greater total Cr(V… more
Date: May 29, 2002
Creator: Weathers, Lenly J. & Katz, Lynn E.
Partner: UNT Libraries Government Documents Department
open access

The Effects of Iron Complexing Ligands on the Long Term Ecosystem Response to Iron Enrichment of HNLC waters

Description: The central hypothesis of this project is that natural iron-complexing organic ligands in seawater differentially regulate iron availability to large (microplankton) and small (nano and picoplankton) class of phytoplankton and thereby strongly influence the potential carbon sequestration in High Nitrate Low Chlorophyll (HNLC) regions of the ocean. The primary project goals are to: 1) determine how different natural and synthetic Fe chelators affect Fe availability to phytoplankton species that … more
Date: November 18, 2006
Creator: Wells, Mark L.; Perry, Mary Jane; Cochlan, William P. & Trick, Charles G.
Partner: UNT Libraries Government Documents Department
open access

Land-use change and carbon sinks: Econometric estimation of the carbon sequestration supply function

Description: Increased attention by policy makers to the threat of global climate change has brought with it considerable interest in the possibility of encouraging the expansion of forest area as a means of sequestering carbon dioxide. The marginal costs of carbon sequestration or, equivalently, the carbon sequestration supply function will determine the ultimate effects and desirability of policies aimed at enhancing carbon uptake. In particular, marginal sequestration costs are the critical statistic for… more
Date: January 1, 2001
Creator: Lubowski, Ruben N.; Plantinga, Andrew J. & Stavins, Robert N.
Partner: UNT Libraries Government Documents Department
open access

Renewal of Collaborative Research: Economically Viable Forest Harvesting Practices That Increase Carbon Sequestration

Description: Forests provide wildlife habitat, water and air purification, climate moderation, and timber and nontimber products. Concern about climate change has put forests in the limelight as sinks of atmospheric carbon. The C stored in the global vegetation, mostly in forests, is nearly equivalent to the amount present in atmospheric CO{sub 2}. Both voluntary and government-mandated carbon trading markets are being developed and debated, some of which include C sequestration resulting from forest manage… more
Date: August 2, 2012
Creator: Davidson, E. A.; Dail, D. B.; Hollinger, D.; Scott, N. & Richardson, A.
Partner: UNT Libraries Government Documents Department
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Development of laboratory and process sensors to monitor particle size distribution of industrial slurries (including shape characterization). Final technical report

Description: The overall goal of the Particle Size Distribution (PSD) sensor projects was to develop and commercialize a sensor system capable of particle analysis, in terms of size distributions, using concentrated suspensions at high solids concentrations. The early research was focused on application of ultrasonic spectroscopy of inorganic pigment slurries (e.g. titanium dioxide) commonly encountered on paper industry. During the project prototypes were tested in both academic and industrial laboratories… more
Date: October 1, 1996
Creator: Pendse, H.P.; Goetz, P.J.; Sharma, A.; Han, W & Bliss, T.C.
Partner: UNT Libraries Government Documents Department
open access

Development of laboratory and process sensors to monitor particle size distribution of industrial slurries

Description: In this paper we present a novel measurement technique for monitoring particle size distributions of industrial colloidal slurries based on ultrasonic spectroscopy and mathematical deconvolution. An on-line sensor prototype has been developed and tested extensively in laboratory and production settings using mineral pigment slurries. Evaluation to date shows that the sensor is capable of providing particle size distributions, without any assumptions regarding their functional form, over diamete… more
Date: October 1, 1992
Creator: Pendse, H.P.
Partner: UNT Libraries Government Documents Department
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