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96,130 Matching Results

Start Over Access Open Access Day 10th

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Results: 1 - 24 of 96,130 next
Best Match Title Creator Date Created (Newest) Date Created (Oldest) Date Added (Newest) Date Added (Oldest)
0.351 micron Laser Beam propagation in High-temperature Plasmas (open access)

0.351 micron Laser Beam propagation in High-temperature Plasmas

A study of the laser-plasma interaction processes have been performed in plasmas that are created to emulate the plasma conditions in indirect drive inertial confinement fusion targets. The plasma emulator is produced in a gas-filled hohlraum; a blue 351-nm laser beam propagates along the axis of the hohlraum interacting with a high-temperature (T{sub e} = 3.5 keV), dense (n{sub e} = 5 x 10{sup 20}cm{sup -3}), long-scale length (L {approx} 2 mm) plasma. Experiments at these conditions have demonstrated that the interaction beam produces less than 1% total backscatter resulting in transmission greater than 90% for laser intensities less than I < 2 x 10{sup 15} W-cm{sup -2}. The bulk plasma conditions have been independently characterized using Thomson scattering where the peak electron temperatures are shown to scale with the hohlraum heater beam energy in the range from 2 keV to 3.5 keV. This feature has allowed us to determine the thresholds for both backscattering and filamentation instabilities; the former measured with absolutely calibrated full aperture backscatter and near backscatter diagnostics and the latter with a transmitted beam diagnostics. A plasma length scaling is also investigated extending our measurements to 4-mm long high-temperature plasmas. At intensities I < 5 x …
Date: December 10, 2007
Creator: Froula, D.; Divol, L.; Meezan, N.; Ross, J.; Berger, R. L.; Michel, P. et al.
Object Type: Report
System: The UNT Digital Library
1.1" Ammunition Hoist - Trunks

1.1" Ammunition Hoist - Trunks

Blueprint depicting technical details of Battleship Texas.
Date: April 10, 1941
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History
1.1" Ammunition Hoist - Trunks [BB-34]

1.1" Ammunition Hoist - Trunks [BB-34]

Blueprint depicting technical details of Battleship Texas.
Date: April 10, 1941
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History
E-1 (5-10-21)

E-1 (5-10-21)

Photograph of MFD E-1, a 1990 Pierce pumper.
Date: May 10, 2021
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
E-1 (7-10-14)

E-1 (7-10-14)

Photograph of Norman FD Engine 1.
Date: July 10, 2014
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
E-1 (10-10-16)

E-1 (10-10-16)

Photograph of Tahlequah FD E-1.
Date: October 10, 2016
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
1-10 Mbar Laser-Driven Shocks Using the Janus Laser Facility (open access)

1-10 Mbar Laser-Driven Shocks Using the Janus Laser Facility

We report preliminary results using the Lawrence Livermore National Laboratory (LLNL) Janus laser facility to generate high pressure laser-driven shocks in the 1-10 Mbar regime. These experiments address various issues, including shock steadiness, planarity, uniformity and low target preheat, important for making precision EOS measurements on a small (E < 250 J) laser facility. A brief description of the experimental techniques, target design and measurements will be given.
Date: August 10, 2001
Creator: Dunn, J.; Price, D. F.; Moon, S. J.; Cauble, R. C.; Springer, P. T. & Ng, A.
Object Type: Article
System: The UNT Digital Library
E-1 (11-10-15)

E-1 (11-10-15)

Photograph of Kellyville FD Engine 1.
Date: November 10, 2015
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
E-1 1988 Mack (4-10-21)

E-1 1988 Mack (4-10-21)

Photograph of Grady County FD (Naples Station) E-1, a 1988 Mack/Marion pumper.
Date: April 10, 2021
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
E-1 2005 Kenworth (7-10-21)

E-1 2005 Kenworth (7-10-21)

Photograph of Porter FD E-1, a 2005 Kenworth/HME Silverfox.
Date: July 10, 2021
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
E-1 Pierce (9-10-19)

E-1 Pierce (9-10-19)

Photograph of Guthrie FD E-1 (Pierce).
Date: September 10, 2019
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
E-1 Reserve (7-10-2019)

E-1 Reserve (7-10-2019)

Photograph of Yukon FD reserve Engine 1.
Date: July 10, 2019
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
E-2 (5-10-21)

E-2 (5-10-21)

Photograph of MFD E-2, a Pierce pumper.
Date: May 10, 2021
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
E-2 (9-10-19)

E-2 (9-10-19)

Photograph of GFD Engine 2.
Date: September 10, 2019
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
E-2 (10-10-16)

E-2 (10-10-16)

Photograph of Tahlequah FD E-2.
Date: October 10, 2016
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
E-2 (11-10-15)

E-2 (11-10-15)

Photograph of Kellyville FD Engine 2. Photo taken at Heyburn Lake.
Date: November 10, 2015
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
2" heavy pressure valve

2" heavy pressure valve

Blueprint depicting technical details of Battleship Texas.
Date: June 10, 1912
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History
2-J Hamburger [Interior]

2-J Hamburger [Interior]

Photograph of interior of 2-J Hamburger at North Lamar and 40th streets in Austin, Texas. The overhead view shows male kitchen workers preparing burgers on the left, female workers bagging orders and cashiering in the center, and the customers ordering at the counter on the right. The back of a large menu hanging from the ceiling is visible on the right above the customers. Cars are visible in the parking lot, seen through the windows. The male employees wear white pants, white shirts, and white paper caps that say "2-J". The female workers wear white dresses with name badges. There are both Caucasian and African-American employees.
Date: August 10, 1960
Creator: Douglass, Neal
Object Type: Photograph
System: The Portal to Texas History
2-MV electrostatic quadrupole injector for heavy-ion fusion (open access)

2-MV electrostatic quadrupole injector for heavy-ion fusion

High current and low emittance are principal requirements for heavy-ion injection into a linac driver for inertial fusion energy. An electrostatic quadrupole (ESQ) injector is capable of providing these high charge density and low emittance beams. We have modified the existing 2-MV Injector to reduce beam emittance and to double the pulse length. We characterize the beam delivered by the modified injector to the High Current Transport Experiment (HCX) and the effects of finite rise time of the extraction voltage pulse in the diode on the beam head. We demonstrate techniques for mitigating aberrations and reducing beam emittance growth in the injector.
Date: November 10, 2004
Creator: Bieniosek, F. M.; Celata, C. M.; Henestroza, E.; Kwan, J. W.; Prost, L. & Seidl, P. A.
Object Type: Article
System: The UNT Digital Library
E-3 (9-10-19)

E-3 (9-10-19)

Photograph of GFD Engine 3.
Date: September 10, 2019
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
E-3 (10-10-16)

E-3 (10-10-16)

Photograph of Tahlequah FD E-3.
Date: October 10, 2016
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History
3"/50 Cal. AA Battery Control from Mark 51 Directors Fire Control Circuit GH Elementary Wiring Diagram

3"/50 Cal. AA Battery Control from Mark 51 Directors Fire Control Circuit GH Elementary Wiring Diagram

Blueprint depicting technical details of Battleship Texas.
Date: August 10, 1943
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History
3-D Force-balanced Magnetospheric Configurations (open access)

3-D Force-balanced Magnetospheric Configurations

The knowledge of plasma pressure is essential for many physics applications in the magnetosphere, such as computing magnetospheric currents and deriving magnetosphere-ionosphere coupling. A thorough knowledge of the 3-D pressure distribution has however eluded the community, as most in-situ pressure observations are either in the ionosphere or the equatorial region of the magnetosphere. With the assumption of pressure isotropy there have been attempts to obtain the pressure at different locations by either (a) mapping observed data (e.g., in the ionosphere) along the field lines of an empirical magnetospheric field model or (b) computing a pressure profile in the equatorial plane (in 2-D) or along the Sun-Earth axis (in 1-D) that is in force balance with the magnetic stresses of an empirical model. However, the pressure distributions obtained through these methods are not in force balance with the empirical magnetic field at all locations. In order to find a global 3-D plasma pressure distribution in force balance with the magnetospheric magnetic field, we have developed the MAG-3D code, that solves the 3-D force balance equation J x B = (upside-down delta) P computationally. Our calculation is performed in a flux coordinate system in which the magnetic field is expressed in terms …
Date: February 10, 2003
Creator: Zaharia, Sorin; Cheng, C. Z. & Maezawa, K.
Object Type: Report
System: The UNT Digital Library
3" relief valves spring H.P. cylinder

3" relief valves spring H.P. cylinder

Blueprint depicting technical details of Battleship Texas.
Date: March 10, 1938
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History