Political Culture in West and East Germany at the TIme of Reunification: Revisiting the Civic Culture

Political Culture in West and East Germany at the TIme of Reunification: Revisiting the Civic Culture

Date: August 1997
Creator: Baumann, Steffen
Description: Studies of political culture have often focused on the impact of political institutions on political culture in a society. The scientific community has accepted the position that institutions shape beliefs and attitudes among the citizens towards the system they live in. This study tests this hypothesis by using survey data collected during the fall of 1990 in the United States, Great Britain, Italy, West, and East Germany.
Contributing Partner: UNT Libraries
Consonantal Assimilation in English

Consonantal Assimilation in English

Date: 1957
Creator: Harllee, Thomas Steffen
Description: The purpose of this study is to show that the phonetic changes wrought by assimilation in the development of the sound of Modern English are still at work. To do this, historical examples will be placed side by side with others from present-day English. No effort is made to restrict examples to any one dialectical area or time.
Contributing Partner: UNT Libraries
The Terrestrial Biosphere and Global Change: Implications for Natural and Managed Ecosystems

The Terrestrial Biosphere and Global Change: Implications for Natural and Managed Ecosystems

Date: 1997
Creator: Walker, Brian & Steffen, WIll
Description: From the perspective of terrestrial ecosystems, the most important component of global change over the next three or four decades will likely be land-use/cover change. It is driven largely by the need to feed the expanding human population, expected to increase by almost one billion (109) people per decade for the next three decades at least. Much of this increase will occur in developing countries in the low-latitude regions of the world. To meet the associated food demand, crop yields will need to increase, consistently, by over 2% every year through this period. Despite advances in technology, increasing food production must lead to intensification of agriculture in areas which are already cropped, and conversion of forests and grasslands into cropping systems. Much of the latter will occur in semi-arid regions and on lands which are marginally suitable for cultivation, increasing the risk of soil erosion, accelerated water use, and further land degradation.
Contributing Partner: UNT Libraries
Performance characteristics of one convergent and three convergent-divergent nozzles

Performance characteristics of one convergent and three convergent-divergent nozzles

Date: September 29, 1952
Creator: Krull, H George & Steffen, Fred W
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Foreign-object retention and flow characteristics of retractable engine-inlet screens

Foreign-object retention and flow characteristics of retractable engine-inlet screens

Date: July 26, 1957
Creator: Steffen, Fred W & Rodert, Lewis A
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Performance characteristics of cylindrical target-type thrust reversers

Performance characteristics of cylindrical target-type thrust reversers

Date: January 11, 1956
Creator: Steffen, Fred W & Mcardle, Jack G
Description: From tests on cylindrical target-type thrust reversers, it was found that the reverser frontal area, lip angle, end-plate angle, and end-plate depth had important effects on reverse-thrust performance. Frontal area, reverser depth, lip angle, and end-plate angele had important effects on the spacing required for unrestricted nozzle flow. For reverse-thrust ratios greater than 64 percent, the reversed flow attached to the 7 degree cowl in quiescent air. Swept-type cylindrical reversers were generally unstable. The thrust-modulation characteristics of a cylindrical target-type thrust reverser were found to be satisfactory.
Contributing Partner: UNT Libraries Government Documents Department
Effect of Mach and Reynolds numbers on maximum lift coefficient

Effect of Mach and Reynolds numbers on maximum lift coefficient

Date: March 28, 1946
Creator: Spreiter, John R & Steffen, Paul J
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Global Change and the Earth System: A planet under pressure

Global Change and the Earth System: A planet under pressure

Date: 2001
Creator: Global Environmental Change Programmes
Description: The PAGES research community works toward improving our understanding of the Earth's changing environment. By placing current and future global changes in a long term perspective, they can be assessed relative to natural variability. Since the industrial revolution, the Earth System has become increasingly affected by human activities. Natural and human processes are woven into a complex tapestry of forcings, responses, feedbacks and consequences. Deciphering this complexity is essential as we plan for the future. Paleoenvironmental research is the only way to investigate Earth System processes that operate on timescales longer than the period of instrumental records.
Contributing Partner: UNT Libraries
Screaming tendency of the gaseous-hydrogen - liquid-oxygen propellant combination

Screaming tendency of the gaseous-hydrogen - liquid-oxygen propellant combination

Date: September 30, 1958
Creator: Baker, Louis, Jr & Steffen, Fred W
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Preliminary investigation of performance of variable-throat extended-plug-type nozzles over wide range of nozzle pressure ratios

Preliminary investigation of performance of variable-throat extended-plug-type nozzles over wide range of nozzle pressure ratios

Date: February 5, 1954
Creator: Ciepluch, Carl C; Krull, H George & Steffen, Fred W
Description: As part of an overall program for the experimental investigation of large-scale jet nozzles, a preliminary evaluation of the internal performance characteristics of several variable-throat extended-plug-type nozzles was obtained over a range of nozzle pressure rations from 2 to 15 with nozzle throat variations as great as 2:1. The extended-plug nozzle attained peak thrust coefficients as high as those which have been attained with fixed-geometry convergent-divergent nozzles. The thrust coefficients of the extended-plug nozzles were relatively insensitive to both nozzle pressure ratio and throat area over the range investigated. The lack of sensitivity of thrust coefficient to nozzle pressure ratio and throat area was due primarily to the absence of severe decreases in thrust coefficient, which are normally observed at low nozzle pressure ratios for convergent-divergent nozzles because of overexpansion. For choked flow, the flow coefficients of the extended-plug nozzles varied from 0.95 to 0.997. A ratio of the outer-shell exit area to nozzle throat area was found to be an important variable affecting nozzle performance. Most of the configurations reported herein showed a small decrease in thrust coefficient at low nozzle pressure ratios; however, it is believed that this characteristic can nearly be eliminated by proper nozzle design.
Contributing Partner: UNT Libraries Government Documents Department
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