Computer program for the design of toroidal transformers

Program relieves designer of most of the computational details, while he maintains control over most engineering decisions. Number of specifications that must be supplied by user allows for considerable flexibility and for exercise of engineering judgment. Speed of program makes it possible to run many cases, economically determining effect of various parameter changes

Design of a multistage depressed collector for the F-16 radar dual mode transmitter tube

The design of a multistage depressed collector (MDC) for use with the F-16 radar dual mode transmitter tube is described. The methods employed and the rationale on which the design is based are presented

System efficiency of a microwave power tube with a multistage depressed collector

The efficiencies of a microwave power tube with a multistage depressed collector and of the power supply driving the tube are computed. An analytical expression for the collector efficiency, which includes the effect of secondary emission and the radial component of velocity, is derived for a hypothetical current probability distribution function. In addition, collector efficiency is calculated with the aid of a digital computer for a specific current distribution. The efficiency of the power supply required to operate the tube in a space environment is estimated by using a simple parallel inverter system

Toroidal transformer design program with application to inverter circuitry

Estimates of temperature, weight, efficiency, regulation, and final dimensions are included in the output of the computer program for the design of transformers for use in the basic parallel inverter. The program, written in FORTRAN 4, selects a tape wound toroidal magnetic core and, taking temperature, materials, core geometry, skin depth, and ohmic losses into account, chooses the appropriate wire sizes and number of turns for the center tapped primary and single secondary coils. Using the program, 2- and 4-kilovolt-ampere transformers are designed for frequencies from 200 to 3200 Hz and the efficiency of a basic transistor inverter is estimated

Three-axis electron-beam test facility

An electron beam test facility, which consists of a precision multidimensional manipulator built into an ultra-high-vacuum bell jar, was designed, fabricated, and operated at Lewis Research Center. The position within the bell jar of a Faraday cup which samples current in the electron beam under test, is controlled by the manipulator. Three orthogonal axes of motion are controlled by stepping motors driven by digital indexers, and the positions are displayed on electronic totalizers. In the transverse directions, the limits of travel are approximately + or - 2.5 cm from the center with a precision of 2.54 micron (0.0001 in.); in the axial direction, approximately 15.0 cm of travel are permitted with an accuracy of 12.7 micron (0.0005 in.). In addition, two manually operated motions are provided, the pitch and yaw of the Faraday cup with respect to the electron beam can be adjusted to within a few degrees. The current is sensed by pulse transformers and the data are processed by a dual channel box car averager with a digital output. The beam tester can be operated manually or it can be programmed for automated operation. In the automated mode, the beam tester is controlled by a microcomputer (installed at the test site) which communicates with a minicomputer at the central computing facility. The data are recorded and later processed by computer to obtain the desired graphical presentations

Comparison of pollen spectra from bogs of Early and Late Wisconsin glaciation in Indiana

Two bogs were included in the present study, Yountsville bog in Montgomery county, within the border of the Early Wiisconsin territory, and Mill Creek bog in Laporte county, located within the territory of the Late Wisconsin glaciation

\u27Trespassers, Beware\u27: Lyda Burton Conley and the Battle for the Huron Place Cemetery

Lyda Burton Conley, Kansas attorney and direct descendant of the great Wyandot Chief Tarhe, appeared before the Supreme Court in January, 1910 to appeal a dismissal of a lawsuit she had filed against Secretary of the Interior James Garfield in 1907. She was seeking a permanent injunction to prevent the sale of a parcel of land in which her ancestors were buried, by the federal government to private developers. This case appears to be the first on record in which a plaintiff argued that the burying grounds and cemeteries of Native American peoples are entitled to federal protection. This lawsuit to prevent the sale of the burial ground was but one of the many battles Lyda Burton Conley fought on behalf of her Native American community. She is a woman whose story must be remembered. This essay tells one part of her story: that of the aforementioned lawsuit. The essay recounts not only Conley\u27s legal battle but also something of the history of her people, the Wyandot, and of the context and culture in which Conley acquired the passion to dedicate herself to the preservation of her mother\u27s memory, her people\u27s sacred territory, and the traditions of the Wyandot nation. The author hopes this essay will prove Conley to be a remarkable woman: a woman attorney at a time when women were not supposed to be lawyers: a person who fought powerful adversaries that people were not supposed to fight and articulated legal theories that people were not allowed to assert

The Accidental Elder Law Professor

This Article discusses my somewhat unusual and erratic path to becoming an Elder Law professor. My story, told more or less in chronological order, is a first-person narrative of one woman’s journey to achieve, if not academic renown, then at least personal satisfaction in the realm of the legal academy. It does not aspire to convey ponderous wisdom about the best way to teach Elder Law or the importance of scholarly productivity as a measure of one’s legitimacy. On the contrary, I hope the Article will illustrate that, in the same way the field of Elder Law has grown and changed over the past two decades, I have grown and changed as a teacher and writer. As Elder Law becomes richer and more complicated as a practice specialty and academic discipline, the ways in which its substance is conveyed to students also become richer and more complicated—encompassing practical, theoretical, and policy-oriented approaches to the legal challenges facing an aging population. Ultimately, I hope the Article reveals how Elder Law allows me to accommodate my varied scholarly inter-ests in a way I believe serves the interests of my students, practitioners, and the older persons whose welfare has over time become so important to my work as teacher, writer, and lawyer

Patriarchy, Paternalism, and the Masks of Fetal Protection.

This essay is a response to John Kennedy\u27s defense of Johnson Controls, Inc.\u27s fetal protection policy which was struck down last year in International Union, UAW v. Johnson Controls, Inc. A unanimous Supreme Court held in the case that the policy, which excluded women from a fetotoxic workplace, violated the federal employment discrimination laws. The Court\u27s decision was issued only a day before Kennedy was scheduled to debate the issue of whether Title VII bars fetal protection policies with Professor Elinor Schroeder at the Kansas Journal\u27s first symposium on March 21-22. 1991. The Court\u27s decision rendered the technical statutory issues that might otherwise have been discussed at the symposium essentially moot and freed Kennedy to address, at least in part, some of the more interesting philosophical questions that the notion of fetal protection suggests. Although to some extent this essay reacts to Kennedy\u27s article previously published in this Journal, it results more directly from and responds more explicitly to his oral defense of fetal protection policies generally, and the language in which that defense was couched