Development and fabrication of high strength alloy fibers for use in metal-metal matrix composites

Metal fiber reinforced superalloys are being considered for construction of critical components in turbine engines that operate at high temperature. The problems involved in fabricating refractory metal alloys into wire form in such a manner as to maximize their strength properties without developing excessive structural defects are described. The fundamental principles underlying the development of such alloy fibers are also briefly discussed. The progress made to date in developing tungsten, tantalum and columbium base alloys for fiber reinforcement is reported and future prospects for alloy fiber development considered

Coercion, vertical trust and entrepreneurism in bureaucracies: evidence from the Nazi Holocaust

Breton and Wintrobe (1982) develop a non-traditional (modern) model of bureaucratic management that is based on the notion of “vertical trust†– the notion that subordinates “trade services†that advance the goals of the bureau''s leadership in return for various “informal payments,†none of which are codified in formal contracts between the two sets of parties. Applying the model to the Nazi bureaucracy explains how Nazi functionaries, such as Adolf Eichmann, acted as bureaucratic entrepreneurs in accomplishing goals relating to “the Jewish question,†and ultimately “the Final Solution,†for their superiors, such as Adolf Hitler and Heinrich Himmler (Breton and Wintrobe, 1986). As an extension of prior research, the current study examines the hypothesis that the use these vertical trust relationships within the borders of their minor Axis partners (e.g., Hungary) worked more effectively for the Germans than coercion, which would have been required to a greater degree within the borders of occupied European countries (e.g., Holland). Specifically, our estimates suggest that, ceteris paribus, owing to their use of vertical trust networks the minor Axis countries each contributed about 152,000 more European Jews to the Nazi Holocaust apparatus than their German-occupied European country counterparts, wherein the Nazis relied more heavily on coercion.bureaucratic entrepreneurship, vertical trust networks, coercion, statistical decomposition tests

Money, prices, interest rates and the business cycle

Business cycles ; Interest rates ; Macroeconomics

Design of recursive digital filters having specified phase and magnitude characteristics

A method for a computer-aided design of a class of optimum filters, having specifications in the frequency domain of both magnitude and phase, is described. The method, an extension to the work of Steiglitz, uses the Fletcher-Powell algorithm to minimize a weighted squared magnitude and phase criterion. Results using the algorithm for the design of filters having specified phase as well as specified magnitude and phase compromise are presented

Ion engine thrust vector study Quarterly report

Thrust stand and thruster designs for ion engine

Complementary Resources and the Exploitation of Technological Innovations

Technological innovation often results when the resources of a small firm are combined with those of a large one. This is because small and large firms characteristically possess complementary resources whose combination can facilitate innovation success. The possession of complementary innovation-producing resources by small and large firms helps explain patterns of interaction among firms in dynamic, technology-based industries. Propositions are developed that outline how typical resources of small and large firms can be used to explain industry-level phenomena surrounding technological change

Analysis of distortion data from TF30-P-3 mixed compression inlet test

A program was conducted to reduce and analyze inlet and engine data obtained during testing of a TF30-P-3 engine operating behind a mixed compression inlet. Previously developed distortion analysis techniques were applied to the data to assist in the development of a new distortion methodology. Instantaneous distortion techniques were refined as part of the distortion methodology development. A technique for estimating maximum levels of instantaneous distortion from steady state and average turbulence data was also developed as part of the program

A development of some relationships between astronomy and mathematics for the secondary schools.

Thesis (Ed.M.)--Boston Universit