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1.1" Ammunition Clipping Room on Signal Bridge

Blueprint depicting technical details of Battleship Texas.
Date: April 12, 1941
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History

1.1" Ammunition Clipping Room on Signal Bridge

Blueprint depicting technical details of Battleship Texas.
Date: April 12, 1941
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History

1.1" Ammunition Clipping Room on Signal Bridge

Blueprint depicting technical details of Battleship Texas.
Date: April 12, 1941
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History
1,3-Propanediol Made From Fermentation-Derived Malonic Acid: Office of Industrial Technologies (OIT) Agriculture Project Fact Sheet (open access)

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

L-1 (6-12-17)

Photograph of Sapulpa FD Ladder 1.
Date: June 12, 2017
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History

1.25" heavy pressure valve cast steel

Blueprint depicting technical details of Battleship Texas.
Date: December 12, 1913
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History

1" heavy pressure valve cast steel

Blueprint depicting technical details of Battleship Texas.
Date: December 12, 1913
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History

1" Standard High Pressure Valve Cast Steel Pressure 0 - 300 Lbs.

Blueprint depicting technical details of Battleship Texas.
Date: October 12, 1923
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History

E-2 (9-12-19)

Photograph of Mangum Engine 2.
Date: September 12, 2019
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
2 Questions pertaining to DON-0133 and the non-BRAC Scenario (Portsmouth Naval Shipyard) (open access)

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

2"siren whistle 8c 10" plain whistle

Blueprint depicting technical details of Battleship Texas.
Date: March 12, 1912
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History

E-3 (9-12-19)

Photograph of Mangum Engine 3.
Date: September 12, 2019
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
[3 copies of LGPC agenda, January 12, 1993] (open access)

[3 copies of LGPC agenda, January 12, 1993]

Agenda for a meeting of the Lesbian/Gay Political Coalition on January 12, 1993 (three copies).
Date: January 12, 1993
Creator: Lesbian/Gay Political Coalition of Dallas
Object Type: Text
System: The UNT Digital Library
A 3-D adaptive mesh refinement algorithm for multimaterial gas dynamics (open access)

A 3-D adaptive mesh refinement algorithm for multimaterial gas dynamics

Adaptive Mesh Refinement (AMR) in conjunction with high order upwind finite difference methods has been used effectively on a variety of problems. In this paper we discuss an implementation of an AMR finite difference method that solves the equations of gas dynamics with two material species in three dimensions. An equation for the evolution of volume fractions augments the gas dynamics system. The material interface is preserved and tracked from the volume fractions using a piecewise linear reconstruction technique. 14 refs., 4 figs.
Date: August 12, 1991
Creator: Puckett, E. G. & Saltzman, J. S.
Object Type: Article
System: The UNT Digital Library
3-D full waveform inversion of seismic data; Part I. Theory (open access)

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. (open access)

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 4-County News Bulletin (Castroville, Tex.), Vol. 19, No. 23, Ed. 1 Monday, September 12, 1977 (open access)

The 4-County News Bulletin (Castroville, Tex.), Vol. 19, No. 23, Ed. 1 Monday, September 12, 1977

Weekly newspaper from Castroville, Texas that includes local, state, and national news along with extensive advertising.
Date: September 12, 1977
Creator: Schott, Bobbie
Object Type: Newspaper
System: The Portal to Texas History
The 4-County News Bulletin (Castroville, Tex.), Vol. 19, No. 36, Ed. 1 Monday, December 12, 1977 (open access)

The 4-County News Bulletin (Castroville, Tex.), Vol. 19, No. 36, Ed. 1 Monday, December 12, 1977

Weekly newspaper from Castroville, Texas that includes local, state, and national news along with extensive advertising.
Date: December 12, 1977
Creator: Schott, Bobbie
Object Type: Newspaper
System: The Portal to Texas History
The 4-County News Bulletin (Castroville, Tex.), Vol. 20, No. 10, Ed. 1 Monday, June 12, 1978 (open access)

The 4-County News Bulletin (Castroville, Tex.), Vol. 20, No. 10, Ed. 1 Monday, June 12, 1978

Weekly newspaper from Castroville, Texas that includes local, state, and national news along with extensive advertising.
Date: June 12, 1978
Creator: Schott, Bobbie
Object Type: Newspaper
System: The Portal to Texas History

[4-H Clubs of Medina County Sponsored Corn Crib]

Slide of 4-H Clubs of Medina County sponsored a corn crib, which was used to dry and store corn. On the left is a crowd of people facing three people in the background. On the left is a girl sitting on a structure built with logs. This was taken at the Texas Folklife Festival.
Date: [1974-09-12..1974-09-15]
Creator: unknown
Object Type: Photograph
System: The Portal to Texas History
4$pi$ detector for correlation experiments (open access)

4$pi$ detector for correlation experiments

None
Date: June 12, 1975
Creator: Thorndike, A. M.
Object Type: Report
System: The UNT Digital Library

E-5 (9-12-19)

Photograph of Mangum Engine 5.
Date: September 12, 2019
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History

5" Ammunition Hoists at Frame 113 Port & Strb. & Fr. 111 Strb Conversion to Handle 1.1" & 20 MM Ammn.

Blueprint depicting technical details of Battleship Texas.
Date: August 12, 1942
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History

5" heavy pressure valve

Blueprint depicting technical details of Battleship Texas.
Date: August 12, 1912
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History