Financing of large corporations in 1950

Corporations - Finance ; Corporations - Accounting

Data processing plan for orbiting solar observatory /OSO-B2/

Scheduling, analog-to-digital conversion, and quality control of data processing for Orbiting Solar Observatory /OSO-B2

Lubricant evaluation of the alpha and beta joints, phase 2

A research study was conducted to evaluate dry film lubrication of long life space components such as the alpha and beta joints of the Space Station. The problem addressed in the report pertains to the longevity of sputtered MoS2 or ion plated lead films in a rolling contact environment. A special technique was devised for the experiments, which incorporated a coated ball cyclically loaded against a flat plate. At fixed intervals the surface of the coating was photographed at 100X magnification. By computer scanning the photographs, the rate of coating loss was determined. Experimental variables include load and surface finish of the plate. A theory was developed to analyze the state of stress between ball and flat. The stress condition in the ball apparatus was related to the state of stress under rolling contact conditions. Based on the experiments life appeared to decrease with increasing load and increasing surface roughness. An ion plated lead film gave better life than a sputtered MoS2 film. However, by keeping the interfacial shear stress at a low level, adequate coating life was achieved for either coating. For the lead film, the critical stress was about 0.19 GPa (28 ksi). The study dealt only with mechanical wear. Before a coating is selected for a critical space application, other factors such as reaction with atomic oxygen must also be considered

Beach Protection and Restoral Techniques and Their Application to the Rhode Island Coast

It is the purpose of this paper to investigate the techniques and designs for beach protection today, and to show that efforts are largely motivated by the economic value involved. The primary cause of beach erosion will be addressed through a discussion of coastal processes. The construction and purposes of the common engineering structures will be explored along with examples of the materials presently being used. The east-coast beaches of Florida with their traditional recreational lure will provide good examples of large-scale efforts to protect high-cost waterfront investments. Rhode Island shoreline varies considerably along its length and is also chiefly privately owned. Contemporary projects in Rhode Island provide examples of sometimes shortsighted, and always costly endeavors in both the public and especially the private sectors

Development of an advanced aluminum thermal analysis system for the characterization of the 319 aluminum alloy solidification process.

Thermal analysis is the study of heat evolution as a molten alloy transforms to a solid. Studying the evolution of heat results in a temperature, time relationship in the form of a cooling curve. Specific characteristics of the 319-aluminum cooling curve are described and related to specific metallurgical properties. Variations in the cooling curves represent changes within the solidification of the alloy and are correlated to changes in the metallurgical properties. In the present work, an aluminum thermal analysis system (AITAS) is constructed to withstand the rigors of day to day foundry conditions. Complete automation has been introduced to reduce the number of variables introduced by the operator to the system. This includes automatic analysis and storage of the results in a database, which allows for later statistical evaluation. Methods of noise filtering and automatic temperature detection have all been improved over previous systems in order to reduce measurement error. Experimental work concluded that AITAS is capable of determining the degree of silicon modification as a result of strontium additions. In addition, AITAS is able to determine which aluminum-copper phases are present including the area fraction of each in the aluminum 319 alloy.Dept. of Electrical and Computer Engineering. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1999 .S76. Source: Masters Abstracts International, Volume: 44-03, page: 1480. Thesis (M.A.Sc.)--University of Windsor (Canada), 2005

One year's experience with electrical soil moisture units

CER54HJS15.January 19, 1954

The family farm in the post-World War II era : industrialization, the cold war and political symbol

Title from PDF of title page (University of Missouri--Columbia, viewed on February 24, 2010).The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file.Dissertation advisor: Dr. Catherine Rymph.Vita.Ph.D. University of Missouri--Columbia 2008.This dissertation examines the particular path of technological change after World War II, how farm people adjusted to that change in their work and identity, as well as the policy implications of the numerous ramifications of the 20th century farm technology revolution. The rapid farm population decline that began with World War II continued to the end of the 20th century. This farm population loss combined with growing commodity surpluses, a Cold War atmosphere, and the transformation of farms into modern businesses to create tensions within federal farm policy that had for decades pursued the unified goals of improved farm living, increased production and technological adoption. "The farm problem," as it became known, highlighted the popular concern that farming was changing too quickly and would result in the extinction of the family farm, an ideal based on the agrarian myth but shaped by modern concerns of the growth of corporate farming and the international presence of collective farming in the Soviet Union. Under such conditions, tensions arose within farm policy between the older values and new concerns for the continuation of the family farm. These tensions often resulted in jumbled and contradictory federal farm policy that failed to stem the loss of smaller farms or the implementation of more technology.Includes bibliographical references

Evaluation of feasibility of measuring EHD film thickness associated with cryogenic fluids

The feasibility of measuring elastohydrodynamic (EHD) films as formed with a cryogenic (LN2) fluid is evaluated. Modifications were made to an existing twin disk EHD apparatus to allow for disk lubrication with liquid nitrogen. This disk apparatus is equipped with an X-ray system for measuring the thickness of any lubricant film that is formed between the disks. Several film thickness experiments were conducted with the apparatus which indicate that good lubrication films are filmed with LN2. In addition to the film thickness studies, failure analyses of three bearings were conducted. The HPOTP turbine end bearings had experienced axial loads of 36,000 to 44,000 N (8,000 to 10,000 lb). High continuous radial loads were also experienced, which were most likely caused by thermal growth of the inner race. The resulting high internal loads caused race spalling and ball wear to occur