Tube joint leak repair coupling

Tube joint leak repair coupling consists of 2 split seals, 1 male split nut, 1 female split nut, and two aligning pins. Each split nut consists of 2 half-shell sections which, when engaged, are held together by a dovetail joint and an aligning pin

Recessions and recoveries associated with asset-price movements: what do we know? : a speech at the Stanford Institute for Economic Policy Research, Stanford, California, January 12, 2005, and the Real Estate Roundtable, Washington, D.C., January 27, 2005

Asset pricing ; Recessions

Experimental determination of residual stress

Residual stresses in finished parts have often been regarded as factors contributing to premature part failure and geometric distortions. Currently, residual stresses in welded structures and railroad components are being investigated. High residual stresses formed in welded structures due primarily to the differential contractions of the weld material as it cools and solidifies can have a profound effect on the surface performance of the structure. In railroad wheels, repeated use of the brakes causes high residual stresses in the rims which may lead to wheel failure and possible derailment. The goals of the study were: (1) to develop strategies for using x-ray diffraction to measure residual stress; (2) to subject samples of Inconel 718 to various mechanical and heat treatments and to measure the resulting stress using x-ray diffraction; and (3) to measure residual stresses in ferromagnetic alloys using magnetoacoustics

A (13)C NMR analysis of the effects of electron radiation on graphite/polyetherimide composites

Initial investigations have been made into the use of high resolution nuclear magnetic resonance (NMR) for the characterization of radiation effects in graphite and Kevlar fibers, polymers, and the fiber/matrix interface in graphite/polyetherimide composites. Sample preparation techniques were refined. Essential equipment has been procured. A new NMR probe was constructed to increase the proton signal-to-noise ratio. Problem areas have been identified and plans developed to resolve them

Answering the challenges of creating economic opportunity

What can be done to promote economic opportunity for all citizens and help communities prosper? Roger W. Ferguson, Jr., vice chairman of the Board of Governors of the Federal Reserve System, discussed this issue when he addressed members of the Commercial Club and the Commonwealth Club in Cincinnati on October 10, 2002.Community development

Understanding financial consolidation

Keynote address for a conference sponsored by the Federal Reserve Bank of New York entitled Financial Innovation and Monetary TransmissionFinancial modernization ; Bank mergers

Miniature sonar fish tag

Self-powered sonar device may be implanted in body of fish. It transmits signal that can be detected with portable tracking gear or by automatic detection-and-tracking system. Operating life of over 4000 hours may be expected. Device itself may be used almost indefinitely

General discussion : the end of large current account deficits : 1970-2002 : are there lessons for the United States?

Greenspan, Alan ; Interest rates ; Deficit financing