NOAA 26.5 Ah LEO characterization test

The General Electric (GE) 26.5 Ah NOAA-G flight nickel-cadmium cells were obtained from RCA-Astro Electronics to undergo performance characterization testing at the Goddard Space Flight Center (GSFC). This lot of cells was manufactured with passivated positive plate, to control nickel structure attack duing active material impregnation, and less electrolyte than normal (less than 3cc/Ah). The cells were tested in a parametric low Earth orbit (LEO) cycling regime that was previously used to test and characterize standard 50 Ah cells. Life cycle testing at the Naval Weapons Support Center (NWSC), in Crane, followed. The results of the test showed nominal performance in comparison with previous test data on the standard 50. Life cycle testing in the NOAA orbital regime is continuing at NWSC

Comparison of Standard and Heart-pacer Type 3rd Electrodes in Design Variable Cells

Nine packs of sealed aerospace nickel cadmium cells were put on life test in February 1979. Each 5 cell pack contained one cell with a standard sensor signal electrode and one cell with a new heart pacer sensor signal electrode. Testing was discontinued in May 1983 and the signal electrode performance data was studied. It was found that the heart pacer electrode generally provided a greater voltage swing over a cycle; that both types of electrodes lost significant sensitivity during life, and that both types of electrodes show great signal variation from cell to cell

Qualification Testing of General Electric 50 Ah Nickel-Cadmium Cells with New Separator and New Positive Plate Processing

Forty-two 50 Ah aerospace nickel-cadmium cells were delivered to Goddard Space Flight Center (GSFC) by General Electric (GE) in February, 1985, for the purpose of evaluating and qualifying a new nylon separator material Pellon 2536, and the new GE Positive Plate Nickel Attack Control Passivation process. Testing began in May, 1985, at the Naval Weapons Support Center (NWSC) in Crane, Indiana with standard initial evaluation tests. Life cycling in both Low Earth Orbit (LEO) and Geosynchronous Orbit (GEO) began in July, 1985, with approximately 1200 LEO cycles complete at this writting. Early test results show that cells with positive plate passivation exhibit higher than normal charge voltage characteristics. Other aspects of performance were nominal

Nickel Cadmium Cell Design Variable Program Data Analysis

A program was undertaken to evaluate eight of the more important nickel-cadmium cell designs that are currently being used or that have been used during the past 15 years. Design variables tested in this program included teflonated negative plates, silver treated negative plates, light plate loading level, no positive plate cadmium treatment, plate design of 1968, utilizing both old and new processing techniques, and electrochemically impregnated positive plates. The data acquired from these test packs in a low Earth orbit cycling regime is presented and analyzed here. This data showed conclusively that the cells manufactured with no positive plate cadmium treatment outperformed all other cell designs in all aspects of the program and that the cells with teflonated negative electrodes performed very poorly

A catalog of radio observations of Jupiter 1961-1964

Catalog of radio observations of Jupiter 1961 to 196

Visiting (H)ours

This manuscript serves as a path through memory, through time and through experiences that have brought me to a personal understanding of death and dying and the immaculate resonance of the spirit. Tracing my way through my first experiences with death and loss, I dissect my emotional and physical journey towards complete solace and serenity facing tragedy and heartbreak. My work embodies my philosophy of maintaining a connection to loved ones through memory and through recording

THE EFFECTS OF FARMLAND, FARMLAND PRESERVATION AND OTHER NEIGHBORHOOD AMENITIES ON PROXIMATE HOUSING VALUES: RESULTS OF A CONJOINT ANALYSIS OF HOUSING CHOICE

Using stated-preference data from a choice-based conjoint analysis instrument, we estimate willingness to pay for the presence of neighboring land that is dedicated to agricultural use (versus a developed land use) and for the preservation of surrounding farmland as permanent cropland. The data also elucidate how individuals balance the values associated with nearby agricultural land patterns with other key neighborhood characteristics such as neighborhood parks, housing density, commute times, school quality and neighborhood safety. The median respondent from a randomly chosen sample of Columbus, Ohio homeowners was willing to pay $843 annually to avoid immediate conversion of 10 percent of agricultural land within one mile of the house valued in the conjoint experiment while the same respondent was willing to pay$277 annually to preserve the same amount of farmland as permanent cropland. We find provision of neighborhood parks within housing developments to be a strong substitute for farmland preservation.Land Economics/Use,

A Study Measuring the Effectiveness of Visual Recall Provided by a Videotape Recorder in Teaching Golf Performance Skills

This is a study to determine if beginning golf students who view a videotape replay of themselves practicing a full swinging golf shot with an instructor\u27s critique will improve their golf performance skills significantly more than students whose full swinging golf shot is videotaped but who are not exposed to a videotape replay of their performance; however, they were provided an instructor\u27s critique

Federal Regulation of Greenhouse Gas Emissions a Practical Certainty: How Will the Texas Energy Industry Survive-Maybe Thrive?

This article asks the policy question: How is the Texas Legislature preparing to protect the Texas energy industry from the federal regulation of greenhouse gas emissions? The article begins with an explanation of why federal regulation of greenhouse gas emissions appears to be a practical certainty. In 2007, a 5-4 U.S. Supreme Court majority held the Environmental Protection Agency must regulate greenhouse gas emissions or find some reason rooted in the Clean Air Act why it should not act. This article will explore this decision, as well as the executive order that followed and the American Clean Energy and Security Act of 2009. This article next discusses the implications of three bills passed into law by the 81st Legislature relating to carbon capture and sequestration (CCS) technology. House Bill 1796 provides for a carbon dioxide repository in subsurface geologic formations off the coast of Texas. House Bill 469 provides for the creation of clean energy projects, in which coal plants sequester carbon dioxide into geologic formations for permanent storage. Senate Bill 1387 establishes a regulatory framework for the implementation of CCS technology in Texas. Finally, this article analyzes three bills relating to renewable energy that failed to be enacted. These bills serve as a foundation-and possibly an indication- of legislative initiatives to come in the following sessions. House Bill 1243 would have allowed customers of retail electric providers to sell back to the grid surplus energy generated from renewable energy sources. Senate Bill 541 would have updated renewable energy source goals and modified the Texas Renewable Energy Credit trading program. Senate Bill 545 would have provided incentives for investment in solar energy generation, as well as reduced the initial costs of implementatio

The 1985 Goddard Space Flight Center Battery Workshop

The subjects covered include: advanced energy storage, lithium cell technology, nickel-cadmium design evaluation and component testing, simulated orbital cycling and flight experience, and nickel-hydrogen technology