Isabella Dam Spillway, Kern River, California: Hydraulic Model Investigation (open access)

Isabella Dam Spillway, Kern River, California: Hydraulic Model Investigation

Abstract: "Tests were conducted on a 1:50-scale model of Isabella Dam Spillway to determine the adequacy of proposed spillway, dam, and channel improvements. The model reproduced an area of the reservoir 800 ft wide by 1,100 ft long, the spillway, and the entire length of the exit channel. Unsatisfactory flow conditions were observed in the vicinity of the spillway crest due to approach conditions to the spillway. Large cross waves, present in the exit channel just downstream of the spillway, resulted in occasional overtopping of the right wall. A grouted rock dike that provided satisfactory flow conditions at the spillway and downstream throughout the exit channel was placed adjacent to the existing spillway approach wall."
Date: August 1987
Creator: Davis, W. G.
Object Type: Report
System: The UNT Digital Library
Coastal Cliff Sediments, San Diego Region, Dana Point to the Mexican Border (open access)

Coastal Cliff Sediments, San Diego Region, Dana Point to the Mexican Border

From Summary: This study documents the temporally episodic cliff and bluff erosion occurs; namely, at San Onofre State Park, Camp Joseph Pendleton Marine Reservation, and Torrey Pines City and State Parks.
Date: June 1987
Creator: Inman, D.
Object Type: Report
System: The UNT Digital Library
Mineral Resources of the Fort Piute Wilderness Study Area, San Bernardino County, California (open access)

Mineral Resources of the Fort Piute Wilderness Study Area, San Bernardino County, California

From abstract: The Fort Piute Wilderness Study Area (CDCA-267) is in northeastern San Bernardino County, California, near the boundary between California and Nevada. Mineral surveys were requested for 31,371 acres of the Fort Piute Wilderness Study Area. In this report the area studied is referred to as "the study area". Examination of mines and prospects in the area was accomplished by the U.S. Bureau of Mines in 1981 and 1982. Field investigations of the area were carried out by the U.S. Geological Survey in 1983 and 1985. No mines or prospects, few mining claims, and no identified resources are located within the wilderness study area. Moderate and low potential for gold resources appears limited to outcrops of gneiss and granite exposed along the eastern side of the Piute Range. Available information indicates that there is no potential for energy resources, including oil and gas, uranium, or geothermal, in the study area.
Date: 1987
Creator: Nielson, Jane E.; Frisken, James G.; Jachens, Robert C. & McDonnell, John R., Jr.
Object Type: Report
System: The UNT Digital Library
Interplanetary propulsion using inertial fusion (open access)

Interplanetary propulsion using inertial fusion

Inertial fusion can be used to power spacecraft within the solar system and beyond. Such spacecraft have the potential for short-duration manned-mission performance exceeding other technologies. We are conducting a study to assess the systems aspects of inertial fusion as applied to such missions, based on the conceptual engine design of Hyde (1983) we describe the required systems for an entirely new spacecraft design called VISTA that is based on the use of DT fuel. We give preliminary design details for the power conversion and power conditioning systems for manned missions to Mars of total duration of about 100 days. Specific mission performance results will be published elsewhere, after the study has been completed.
Date: January 1, 1987
Creator: Orth, C.D.; Hogan, W.J.; Hoffman, N.; Murray, K.; Klein, G. & Diaz, F.C.
Object Type: Article
System: The UNT Digital Library
Transport vehicle for manned Mars missions powered by inertial confinement fusion (open access)

Transport vehicle for manned Mars missions powered by inertial confinement fusion

Inertial confinement fusion (ICF) is an ideal engine power source for manned spacecraft to Mars because of its inherently high power-to-mass ratios and high specific impulses. We have produced a concept for a vehicle powered by ICF and utilizing a magnetic thrust chamber to avoid plasma thermalization with wall structures and the resultant degradation of specific impulse that are unavoidable with the use of mechanical thrust chambers. This vehicle is capable of 100-day manned Mars missions with a 100-metric-ton payload and a total vehicle launch mass near 6000 metric tons, based on advanced technology assumed to be available by A.D. 2020. Such short-duration missions minimize radiation exposures and physiological deterioration of astronauts.
Date: June 26, 1987
Creator: Orth, C.D.; Klein, G.; Sercel, J.; Hoffman, N.; Murray, K. & Chang-Diaz, F.
Object Type: Article
System: The UNT Digital Library
The VISTA spacecraft: Advantages of ICF (Inertial Confinement Fusion) for interplanetary fusion propulsion applications (open access)

The VISTA spacecraft: Advantages of ICF (Inertial Confinement Fusion) for interplanetary fusion propulsion applications

Inertial Confinement Fusion (ICF) is an attractive engine power source for interplanetary manned spacecraft, especially for near-term missions requiring minimum flight duration, because ICF has inherent high power-to-mass ratios and high specific impulses. We have developed a new vehicle concept called VISTA that uses ICF and is capable of round-trip manned missions to Mars in 100 days using A.D. 2020 technology. We describe VISTA's engine operation, discuss associated plasma issues, and describe the advantages of DT fuel for near-term applications. Although ICF is potentially superior to non-fusion technologies for near-term interplanetary transport, the performance capabilities of VISTA cannot be meaningfully compared with those of magnetic-fusion systems because of the lack of a comparable study of the magnetic-fusion systems. We urge that such a study be conducted.
Date: October 2, 1987
Creator: Orth, C.D.; Klein, G.; Sercel, J.; Hoffman, N.; Murray, K. & Chang-Diaz, F.
Object Type: Article
System: The UNT Digital Library
Texas Broilers: For Week Ending April 4, 1987 (open access)

Texas Broilers: For Week Ending April 4, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending on February 28 to the week ending April 4, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: April 8, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending August 22, 1987 (open access)

Texas Broilers: For Week Ending August 22, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending July 18 to the week ending August 22, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: August 26, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending August 29, 1987 (open access)

Texas Broilers: For Week Ending August 29, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending July 25 to the week ending August 29, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: September 2, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending December 5, 1987 (open access)

Texas Broilers: For Week Ending December 5, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending October 31 to the week ending December 5, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: December 9, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending December 12, 1987 (open access)

Texas Broilers: For Week Ending December 12, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending November 7 to the week ending December 12, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: December 16, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending December 19, 1987 (open access)

Texas Broilers: For Week Ending December 19, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending November 14 to the week ending December 19, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: December 23, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending December 26, 1987 (open access)

Texas Broilers: For Week Ending December 26, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending November 21 to the week ending December 26, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: December 30, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending February 28, 1987 (open access)

Texas Broilers: For Week Ending February 28, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending January 24 to the week ending February 28, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: March 4, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending July 4, 1987 (open access)

Texas Broilers: For Week Ending July 4, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending May 30 to the week ending July 4, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: July 8, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending July 11, 1987 (open access)

Texas Broilers: For Week Ending July 11, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending June 6 to the week ending July 11, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: July 15, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending November 7, 1987 (open access)

Texas Broilers: For Week Ending November 7, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending October 3 to the week ending November 7, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: November 12, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending November 14, 1987 (open access)

Texas Broilers: For Week Ending November 14, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending October 10 to the week ending November 14, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: November 18, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending November 21, 1987 (open access)

Texas Broilers: For Week Ending November 21, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending October 17 to the week ending November 21, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: November 25, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending November 28, 1987 (open access)

Texas Broilers: For Week Ending November 28, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending October 24 to the week ending November 28, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: December 2, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending October 3, 1987 (open access)

Texas Broilers: For Week Ending October 3, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending August 29 to the week ending October 3, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: October 7, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending October 10, 1987 (open access)

Texas Broilers: For Week Ending October 10, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending September 5 to the week ending October 5, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: October 14, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending October 17, 1987 (open access)

Texas Broilers: For Week Ending October 17, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending September 12 to the week ending October 17, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: October 21, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History
Texas Broilers: For Week Ending October 24, 1987 (open access)

Texas Broilers: For Week Ending October 24, 1987

Weekly report of the Texas Agricultural Statistics Service on broiler chick numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending September 19 to the week ending October 24, during 1986 and 1987 for broiler eggs set, chicks hatched, and chicks placed.
Date: October 28, 1987
Creator: Texas Agricultural Statistics Service
Object Type: Report
System: The Portal to Texas History