Lunar Glovebox Balance with Wireless Technology

The most important equipment required for processing lunar samples is a high-quality mass balance for maintaining accurate weight inventory, security, and scientific study. After careful review, a Curation Office memo by Michael Duke in 1978 chose the Mettler PL200 to be used for sample weight measurements inside the gloveboxes (Fig. 3). These commercial off-the-shelf (COTS) balances did not meet the strict accepted material requirements in the Lunar lab. As a result, each balance housing, weighing pan, and wiring was custom retrofitted to meet Lunar Operating Procedure (LOP) 54 requirements [for material construction restrictions]. The original design drawings for the custom housings, readout support stands, and wiring were done by the JSC engineering directorate. The 1977- 1978 schematics, drawings, and files are now housed in the curation Data Center. Per the design specifications, the housing was fabricated from aluminum grade 6061 T6, seamless welds, and anodized per MIL-A-8625 type I, class I. The balance feet were TFE Teflon and any required joints were sealed with Viton A gaskets. The readout display and support stands outside the glovebox were fabricated from 300 series stainless steel with #4 finish and mounted to the glovebox with welded bolts. Wire harnesses that linked the balance with the outside display and power were encapsulated with TFE Teflon and transported through custom Deutsch wire bulk head pass-through systems from inside to outside the glovebox. These Deutsch connectors were custom fabricated with 316L stainless steel bodies, Viton A O-rings, aluminum 6061 with electroless nickel plating, Teflon (replacing the silicone), and gold crimp connectors (no soldering). Many of the Deutsch connectors may have been used in the Apollo program high vacuum complex in building 37 and date to about 1968 to 1970

In the name of the father: The continuity and paradox of Puritan theology and pastoral authority

American scholars have long been interested in the intellectual and social impact of the eighteenth-century religious revival, the Great Awakening. This dissertation uses a colonial family as a case study of the significance of this major colonial event. It traces and compares the intellectual and theological development of Michael Wigglesworth, and his two sons, Samuel and Edward. The Wigglesworth family represents both the foundation of Puritan thought in the seventeenth century and the transformation of that thought in the eighteenth century. Michael Wigglesworth (1631-1705), a tutor and Fellow at Harvard College and pastor of the church in Malden, Massachusetts, was a poet of noted fame. The Day of Doom (1662), a long theological poem, was an immediate success; its first printing of 1800 copies were sold out within just over a year, and it became, according to Edmund Morgan, the most popular book of his time . Wigglesworth would have observed a spiritual and cultural transition in the Colony, away from its Puritan foundations and toward a greater tolerance of other Protestant points of view by the end of the seventeenth century. Samuel and Edward, in turn, exhibited the theological division which arose between the orthodox and the Arminianist traditions in eighteenth-century colonial America. And while one brother supported the historic revival, the other maintained reservations of it. Nevertheless, they were sons of the man who inspired New England and epitomized its Calvinist theological roots through such poems as The Day of Doom and God\u27s Controversy with New England . Samuel Wigglesworth (1689-1768) was not an extremist in his support of the Great Awakening, nor was Edward (1693-1765) completely hostile to its call for a renewing of faith; and yet, both men found themselves on opposing sides of what has been described as the first historic colonial-wide movement. This study explores the reasons for their differences by using an examination of familial and intellectual heritage. This project, then, analyzes intellectual, professional, and social forces--with the goal that the Wigglesworth family adds to our understanding of the repercussions of a major religious movement, the extension of Puritan theology into the eighteenth century, and the paradoxical transformation of professional authority concerning pastoral leadership in early American society

Nuclear rocket shielding methods, modification, updating, and input data preparation. Volume 5 - Two-dimensional, discrete ordinates transport technique Final progress report

Two dimensional, discrete ordinates transport technique for use with nuclear rocket shielding methods, modification, updating, and data input preparation - Vol.

Slurry Trench Wall Replaces Structure Underpinning

Construction of the Charles Center Station of the Baltimore Metro required a cut-and-cover excavation 66 feet (20 m) deep in a major street in the central business district of Baltimore, Maryland. Several high-rise buildings were so close to the excavation that it was necessary to remove portions of the spread footing foundations which extended into the proposed station excavation. The contract documents required that the spread footings adjacent to the excavation be underpinned using steel pipe piles jacked to end bearing on bedrock. When it was apparent that difficulties in installation would result in substantial delays in project completion, the piles were deleted and a redesigned concrete slurry trench wall was constructed to confine the soil beneath the adjacent building foundations. Instrumentation data and visual observations indicated that the concrete slurry trench wall was successful in controlling settlement of the adjacent buildings to acceptable limits

Application of remote sensing to study nearshore circulation

The research to use remote sensing techniques for studying the continental shelf is reported. The studies reported include: (1) nearshore circulation in the vincinity of a natural tidal inlet; (2) identification of indicators of biological activity; (3) remote navigation system for tracking free drifting buoys; (4) experimental design of an estuaring tidal circulation; and (5) Skylab support work

Nuclear rocket shielding methods, modification, updating, and input data preparation. Volume 1 - Synopsis of methods and results of analysis Final progress report

Analysis of data systems and computer programs for nuclear rocket shielding methods, modification, updating, and data input preparation - Vol.

Adventures in Lunar Core Processing: Timeline of and Preparation for Opening of Core Sample 73002 for the ANGSA Program

The Apollo mission returned 382 kg of rocks, soil and core samples, which have helped to advance our knowledge of lunar science. Studies of these lunar samples are crucial for our understanding of the Moons geological evolution. Here, we present the meticulous process that involves preparing for, and ultimately opening, the unopened Apollo 17 drive tube: 73002,0, so that the next generation of lunar scientists can further our insight into the Moons history

Diffuse flow environments within basalt- and sediment-based hydrothermal vent ecosystems harbor specialized microbial communities

Hydrothermal vents differ both in surface input and subsurface geochemistry. The effects of these differences on their microbial communities are not clear. Here, we investigated both alpha and beta diversity of diffuse flow-associated microbial communities emanating from vents at a basalt-based hydrothermal system along the East Pacific Rise (EPR) and a sediment-based hydrothermal system, Guaymas Basin. Both Bacteria and Archaea were targeted using high throughput 16S rRNA gene pyrosequencing analyses. A unique aspect of this study was the use of a universal set of 16S rRNA gene primers to characterize total and diffuse flow-specific microbial communities from varied deep-sea hydrothermal environments. Both surrounding seawater and diffuse flow water samples contained large numbers of Marine Group I (MGI) Thaumarchaea and Gammaproteobacteria taxa previously observed in deep-sea systems. However, these taxa were geographically distinct and segregated according to type of spreading center. Diffuse flow microbial community profiles were highly differentiated. In particular, EPR dominant diffuse flow taxa were most closely associated with chemolithoautotrophs, and off axis water was dominated by heterotrophic-related taxa, whereas the opposite was true for Guaymas Basin. The diversity and richness of diffuse flow-specific microbial communities were strongly correlated to the relative abundance of Epsilonproteobacteria, proximity to macrofauna, and hydrothermal system type. Archaeal diversity was higher than or equivalent to bacterial diversity in about one third of the samples. Most diffuse flow-specific communities were dominated by OTUs associated with Epsilonproteobacteria, but many of the Guaymas Basin diffuse flow samples were dominated by either OTUs within the Planctomycetes or hyperthermophilic Archaea. This study emphasizes the unique microbial communities associated with geochemically and geographically distinct hydrothermal diffuse flow environments

Meteoritic Material Recovered from the 07 March 2018 Meteorite Fall into the Olympic Coast National Marine Sanctuary

On 07 March 2018 at 20:05 local time (08 March 03:05 UTC), a dramatic meteor occurred over Olympic Coast National Marine Sanctuary (OCNMS) off of the Washington state coast (OCNMS fall, henceforth). Data to include seismometry (from both on-shore and submarine seismometers), weather radar imagery (Figure 1), and a moored weather buoy, were used to accurately identify the fall site. The site was visited by the exploration vessel E/V Nautilus (Ocean Exploration Trust) on 01 July 2018 [1] and by the research vessel R/V Falkor (Schmidt Ocean Institute) from 03-06 June 2019. Remotely operated vehicles (ROVs) from both vessels were used to search for meteorites and sample seafloor sediments. These expeditions performed the first attempts to recover meteorites from a specific observed fall in the open ocean. Analysis of weather radar data indicates that this fall was unusually massive and featured meteorites of unusually high mechanical toughness, such that large meteorites were disproportionately produced compared to other meteorite falls (Figure 2)[2-4]. We report the recovery of many (>100) micrometeorite-sized melt spherules and other fragments, and one small (~1mm3 ) unmelted meteorite fragment identified to date. Approximately 80% of the fragments were recovered from a single sample, collected from a round pit in the seafloor sediment. Melt spherules are almost exclusively type I iron-rich spherules with little discernible oxidation. Analyses are currently underway to attempt to answer the primary science question by identifying the parent meteorite type. Also, differences in the number and nature of samples collected by Nautilus and Falkor reveal a distinct loss rate to oxidation over the 15 months following the fall that is useful to inform future recovery efforts

Erosion of the cliffs of Outer Cape Cod : tables and graphs

Originally issued as Reference No. 64-21, series later renamed WHOI-.The following tables and graphs place in convenient storage the results of several years of careful surveying and at the same time provide rudimentary interpretation of resuIts by comparing erosion rates. The reader will find listed in the bibliography pertinent published papers which analyze these coastal erosion data in great detail.This work has been supported by the Geography Branch of the Office of Naval Research, Contract Number Nonr 1254 (00), (NR-388-018), and by Nonr 2196 (00)