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1,3-Propanediol Made From Fermentation-Derived Malonic Acid: Office of Industrial Technologies (OIT) Agriculture Project Fact Sheet
1,3-Propanediol is one of two ingredients used in producing polytrimethylene terephthalate (PTT), a polymer which can be used in polyester and nylon applications. Researchers are developing a process to ferment biomass feedstock to malonic acid using filamentous fungi and then catalytically convert malonic acid to 1,3-propanediol.
Date:
September 12, 2001
Creator:
Carde, T.
Object Type:
Book
System:
The UNT Digital Library
2 Questions pertaining to DON-0133 and the non-BRAC Scenario (Portsmouth Naval Shipyard)
2 Questions pertaining to DON-0133 and the non-BRAC Senario (Portsmouth Naval Shipyard. Department of Defense Clearinghouse Response: DoD Clearinghouse reply to a letter from the BRAC Commission regarding 2 Questions pertaining to DON-0133 and the non-BRAC scenario (Portsmouth Naval Shipyard)
Date:
August 12, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
3-D full waveform inversion of seismic data; Part I. Theory
Full waveform inversion of seismic data is a challenging subject partly because of the lack of precise knowledge of the source. Since currently available approaches involve some form of approximations to the source, inversion results are subject to the quality and the choice of the source information used. A new full waveform inversion scheme has been introduced (Lee and Kim, 2003) using normalized wavefield for simple two-dimensional (2-D) scalar problems. The method does not require source information, so potential inversion errors due to source estimation may be eliminated. A gather of seismic traces is first Fourier-transformed into the frequency domain and a normalized wavefield is obtained for each trace in the frequency domain. Normalization is done with respect to the frequency response of a reference trace selected from the gather, so the complex-valued normalized wavefield is source-independent and dimensionless. The inversion algorithm minimizes misfits between measured normalized wavefield and numerically computed normalized wavefield. In this paper the full waveform inversion is extended to three-dimensional (3-D) problems.
Date:
May 12, 2003
Creator:
Lee, Ki Ha
Object Type:
Article
System:
The UNT Digital Library
3-D surface profile measurements of large x-ray synchrotron radiation mirrors using stitching interferometry.
Stitching interferometry, using small-aperture, high-resolution, phase-measuring interferometry, has been proposed for quite some time now as a metrology technique to obtain 3-dimensional profiles of surfaces of oversized optical components and substrates. The aim of this work is to apply this method to the specific case of long grazing-incidence x-ray mirrors, such as those used in beamlines at synchrotron radiation facilities around the world. Both fabrication and characterization of these mirrors would greatly benefit from this technique because it offers the potential for providing measurements with accuracy and resolution better than those obtained using existing noncontact laser profilers, such as the long trace profiler (LTP). Measurement data can be used as feedback for computer-controlled fabrication processes to correct for possible topography errors. The data can also be used for simulating and predicting mirror performance under realistic conditions. A semiautomated stitching system was built and tested at the X-ray Optics Metrology Laboratory of the Advanced Photon Source at Argonne National Laboratory. The initial objective was to achieve a measurement sensitivity on the order of 1 {micro}rad rms. Preliminary tests on a 1 m-long x-ray mirror showed system repeatability of less than 0.6 {micro}rad rms. This value is comparable to that of a …
Date:
September 12, 2002
Creator:
Assoufid, L.; Bray, M.; Qian, J. & Shu, D.
Object Type:
Article
System:
The UNT Digital Library
The 9/11 Recommendations Implementation Act: Comparison of the Criminal Law and Procedure Provisions in H.R. 10 and S. 2845 as Passed by Their Respective Houses
This report provides a brief description of the substantive criminal law and procedures provisions of the House-passed version of H.R. 10 and Senate passed S.2845.
Date:
October 12, 2004
Creator:
Doyle, Charles
Object Type:
Report
System:
The UNT Digital Library
50,000th SCVI Baby Registered in the Immunization Program
Document covering the birth of the 50,000th baby registered in the SVCI Immunization Program. The document includes a colored photograph of newborn baby Pearson Harris with parents Mr. and Mrs. Shawn Harris and SVCI coordinator Kristine Dankworth. The photograph is taken in the halls of Harris Hospital in Fort Worth.
Date:
October 12, 2004
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
A 90-GHz Photoinjector
Photocathode rf guns depend on mode locked laser systems to produce an electron beam at a given phase of the rf. In general, the laser pulse is less than {sigma}{sub z} = 10{sup o} of rf phase in length and the required stability is on the order of {Delta}{phi} = 1{sup o}. At 90 GHz (W-band), these requirements correspond to {sigma}{sub z} = 333 fsec and {Delta}{phi} = 33 fsec. Laser system with pulse lengths in the fsec regime are commercially available, the timing stability is a major concern. We propose a multi-cell W-band photoinjector that does not require a mode locked laser system. Thereby eliminating the stability requirements at W-band. The laser pulse is allowed to be many rf periods long. In principle, the photoinjector can now be considered as a thermionic rf gun. Instead of using an alpha magnet to compress the electron bunch, which would have a detrimental effect on the transverse phase space quality due to longitudinal phase space mixing, we propose to use long pulse laser system and a pair of undulators to produce a low emittance, high current, ultra-short electron bunch for beam dynamics experiments in the 90 GHz regime.
Date:
September 12, 2005
Creator:
Palmer, D. T.; Hogan, M. J.; Ferrario, M. & Serafini, L.
Object Type:
Article
System:
The UNT Digital Library
100-D Area In Situ Redox Treatability Test for Chromate-Contaminated Groundwater
A treatability test was conducted for the In Situ Redox Manipulation (ISRM) technology at the 100 D Area of the U. S. Department of Energy's Hanford Site. The target contaminant was dissolved chromate in groundwater. The ISRM technology creates a permeable subsurface treatment zone to reduce mobile chromate in groundwater to an insoluble form. The ISRM permeable treatment zone is created by reducing ferric iron to ferrous iron within the aquifer sediments, which is accomplished by injecting aqueous sodium dithionite into the aquifer and then withdrawing the reaction products. The goal of the treatability test was to create a linear ISRM barrier by injecting sodium dithionite into five wells. Well installation and site characterization activities began in spring 1997; the first dithionite injection took place in September 1997. The results of this first injection were monitored through the spring of 1998. The remaining four dithionite injections were carried out in May through July of 1998.These five injections created a reduced zone in the Hanford unconfined aquifer approximately 150 feet in length (perpendicular to groundwater flow) and 50 feet wide. The reduced zone extended over the thickness of the unconfined zone. Analysis of post-emplacement groundwater samples showed concentrations of chromate, in …
Date:
October 12, 2000
Creator:
Williams, Mark D.; Vermeul, Vincent R.; Szecsody, James E. & Fruchter, Jonathan S.
Object Type:
Report
System:
The UNT Digital Library
100-D Area In Situ Redox Treatability Test for Chromate-Contaminated Groundwater
None
Date:
October 12, 2000
Creator:
Williams, M. D.; Vermeul, V. R.; Szecsody, J. E. & Fruchter, J. S.
Object Type:
Report
System:
The UNT Digital Library
200 West Area Dust Mitigation Strategies
Various strategies were developed for the purpose of mitigating respirable dust experienced at facilities in the southwest corner of the 200 West Area. These strategies focused on treatment of that portion of the dust source located within the 200 West Expansion Area. Strategies included direct shielding of the facilities via establishment of a poplar windbreak and installation of an artificial windscreen; soil stabilization via seeding of herbaceous plants, soil fixatives, straw crimping, straw blankets, gravel mulches, drift fences, baled straw, and living fences; and various irrigation systems that would function both to water seeded herbs and to suppress dust.
Date:
April 12, 2001
Creator:
Sackschewsky, Michael R. & Becker, James M.
Object Type:
Report
System:
The UNT Digital Library
S. 219: The National Employee Savings and Trust Equity Guarantee Act
On July 26, 2005, the Senate Finance Committee approved S. 219, the “National Employee Savings and Trust Equity Guarantee (NESTEG) Act of 2005,” a bill to reform federal pension laws. This report summarizes the major provisions of the bill, as approved by the Committee.
Date:
August 12, 2005
Creator:
Purcell, Patrick J.
Object Type:
Report
System:
The UNT Digital Library
339 Form Letters from concerned citizens in support of removing Cannon Air Force Base from the list
Community Correspondence - 339 Form Letters from concerned citizens in support of removing Cannon Air Force Base from the list
Date:
August 12, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
483 Form Letters from deeply troubled citizens in regards to the DoD recommendation to close Niagara Falls Air Force Base
Community Correspondence - 483 Form Letters from deeply troubled citizens in regards to the DoD recommendation to close Niagara Falls Air Force Base
Date:
August 12, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
499 Form Letters from concerned citizens suggesting to "Please reconsider and take Cannon Air Force Base off the base closure list"
Community Correspondence - 499 Form Letters from concerned citizens suggesting to "Please reconsider and take Cannon Air Force Base off the base closure list"
Date:
August 12, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
500 Form Letters from concerned citizens suggesting to "Please reconsider and take Cannon Air Force Base off the base closure list"
500 Form Letters from concerned citizens suggesting to "Please reconsider and take Cannon Air Force Base off the base closure list"
Date:
August 12, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
500 Form Letters from residents of Curry and Roosevelt County regarding Cannon Air Force Base
Community Correspondence - 500 Form Letters from residents of Curry and Roosevelt County regarding Cannon Air Force Base
Date:
August 12, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
501 Form Letters from concerned citizens suggesting to "Please reconsider and take Cannon Air Force Base off the base closure list"
Community Correspondence - 501 Form Letters from concerned citizens suggesting to "Please reconsider and take Cannon Air Force Base off the base closure list"
Date:
August 12, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
501 Form Letters from concerned citizens to the Commission in reference to take Cannon Air Force Base off the list
Community Correspondence - 501 Form Letters from concerned citizens to the Commission in reference to take Cannon Air Force Base off the list
Date:
August 12, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
502 Form Letters from concerned citizens to the Commission in reference to take Cannon Air Force Base off the list
Community Correspondence - 501 Form Letters from concerned citizens to the Commission in reference to take Cannon Air Force Base off the list
Date:
August 12, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
506 Form Letters from concerned citizens who are deeply troubled by the DoD recommendation to close Niagara Falls Air Force Base
Community Correspondence - 506 Form Letters from concerned citizens who are deeply troubled by the DoD recommendation to close Niagara Falls Air Force Base
Date:
August 12, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
527 Groups and Campaign Activity: Analysis Under Campaign Finance and Tax Laws
This report focuses on the controversy surrounding 527 groups in terms of their increased campaign-related activity and their regulation by the federal government. The report describes the origins of the contention and how groups that may not be necessarily "political committees" under FECA (Federal Election Campaign Act) guidelines are still eligible for beneficial tax deductions. This report also examines the extent to which FECA regulates such organizations.
Date:
June 12, 2008
Creator:
Whitaker, L. Paige & Lunder, Erika
Object Type:
Report
System:
The UNT Digital Library
108th CONGRESS 1st Session H. R. 1588 An Act
108th CONGRESS 1st Session H. R. 1588 An Act
Date:
September 12, 2005
Creator:
United States. Department of Defense.
Object Type:
Text
System:
The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 31, No. 6, Ed. 1 Friday, October 12, 2001
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
October 12, 2001
Creator:
Baldwin, Alisha
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 31, No. 24, Ed. 1 Friday, April 12, 2002
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
April 12, 2002
Creator:
Baldwin, Alisha
Object Type:
Newspaper
System:
The Gateway to Oklahoma History