2,495 research outputs found
History of Mt. Hope Cemetery, Bangor, Maine
Preface
Coeval with the existence of Bangor as a City in 1834, or about that time, the prevailing sentiment of its citizens strongly favored the selection of new cemetery grounds for the burial of its dead. This sentiment having been successful in the establishment of Mt. Hope Cemetery as the result, many thousands of its citizens have since found there a resting place for their bodies, including the largest portion of those then alive, besides thousands of others since born or otherwise become inhabitants of the city. The history of the Cemetery has thus become one of great interest to the people generally, and the duty would seem to be imposed upon some one to see that the work of compiling such history should be performed, not only for the present inhabitants, but for those who may succeed the present during the long ages of the future.
The undersigned having been one of the very few, now alive, who were present at the dedication of the Cemetery, and for a half century since having been continuously entrusted, as Treasurer, with the collection and disbursement of its funds, and having had a prominent part to perform in the purchase of its premises and in the sale and conveyances of its very numerous lots, which have, during all such half century, been disposed of to citizens and others, the work thus alluded to would seem to be very appropriately chargeable to him. Freely accepting the call, he respectfully submits the following report.
Albert W. Painehttps://digicom.bpl.lib.me.us/books_pubs/1094/thumbnail.jp
Fabrication of transparent conducting amorphous ZnāSnāInāO thin films by direct current magnetron sputtering
Amorphous ZnOāSnO2āIn2O3 films were grown by direct current magnetron sputtering from vacuum hot pressed ceramic oxide targets of Zn:In:Sn cation ratios 1:2:1 and 1:2:1.5 onto glass substrates. X-ray diffraction analysis showed that the microstructure remained amorphous during annealing at 200 Ā°C for up to 5 hours. By monitoring the electrical resistivity, oxygen content and substrate temperature were optimized during deposition. The optimal films were characterized by Hall Effect, work function and optical spectroscopy measurements. Films of 1:2:1 composition showed the lowest resistivity (7.6Ć10ā4 Ī©-cm), when deposited onto substrates preheated to 300 Ā°C. Transmissivity of all films exceeded 80% in the visible spectral region. The energy gap was 3.52ā3.74 eV, and the work function ranged 5.08ā5.22 eV, suitable for cathode applications in organic light emitting diodes. Overall, the film characteristics were comparable or superior to those of amorphous tin-doped indium oxide and zinc-doped indium oxide films and may serve as viable, lower-cost alternatives
Development of a severe local storm prediction system: A 60-day test of a mesoscale primitive equation model
The progress and problems associated with the dynamical forecast system which was developed to predict severe storms are examined. The meteorological problem of severe convective storm forecasting is reviewed. The cascade hypothesis which forms the theoretical core of the nested grid dynamical numerical modelling system is described. The dynamical and numerical structure of the model used during the 1978 test period is presented and a preliminary description of a proposed multigrid system for future experiments and tests is provided. Six cases from the spring of 1978 are discussed to illustrate the model's performance and its problems. Potential solutions to the problems are examined
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Summary Report for the 2010-2011 STATEMAP Project: Geological Mapping to Support Improved Database Development and Understanding of Urban Corridors, Critical Aquifers, and Special Areas of Environmental Concern in Texas
Two geologic maps have been produced for this study: The Project 1 map of the east part of the Cleburne 30 x 60 minute quadrangle, North-Central Texas, scale 1:100,000, was constructed through mapping and compilation of twenty 1:24,000-scale geologic work maps. The map and related data provide a basic geologic framework to aid in managing water and Earth resources, planning land use, identifying aquifer recharge areas, and identifying sources of aggregate and other earth resources. Geology of the area consists of Cretaceous (Albian to Coniacian) limestone, argillaceous limestone, marl, shale, and sandstone exposed across the study area, composing more than 1,500 ft of Cretaceous shelf and shore-zone deposits. This stratigraphy includes the Woodbine and Paluxy Sandstones - sources of sand within the unit's outcrop belt and important aquifers in the subsurface. Edwards and Comanche Peak limestones are also resources for lime and aggregate. Some local limestone pits are within the Georgetown Formation as well.
The Project 2 map of the Matagorda-Matagorda SW quadrangles includes the Colorado River Delta and Matagorda Peninsula of the Texas Gulf Coast. This map is intended to be used as a source of basic geologic information for managing land resources of the area and for studying shoreline changes, geologic depositional environments, land changes due to human activities, and active faulting. Geology of the area consists of Pleistocene Beaumont Formation distributary, interdistributary, and abandoned-channel sand, silt, and clay and Holocene to Modern beach, dune, tidal-flat, washover, distributary, levee, marsh, swamp, and floodplain - sand, silt, and clay deposits. Marsh, tidal-flat, and back-barrier deposits are faulted.Bureau of Economic Geolog
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Summary Report for the 2011-2012 STATEMAP Project
Two geologic maps have been produced for this study. The Project 1 map, Geologic Map of the Nueces DeltaĆ¢ā¬āAnnaville and Odem Quadrangles, Texas Gulf Coast, scale 1:24,000, illustrates the geology of a Texas coastal-plain area where the Nueces Delta has prograded into Nueces Bay. This map will be used for the study of shoreline changes and fluvial-deltaic deposition, as well as for baseline data that will be helpful in managing this environmentally sensitive coastal area. The map displays historical shorelines, different delta units (Modern to Holocene), and coastal-plain upland deposits (Holocene to upper Pleistocene).
The Project 2 map, Geologic Map of the Gainesville North Quadrangle, scale 1:24,000, is one of the quadrangles within the north-central Texas transportation corridor. Maps for this corridor will provide a basic geologic framework to aid in managing water and Earth resources, planning land use, identifying aquifer recharge areas, and identifying sources of aggregate and other Earth resources. Geologic units exposed across this corridor comprise about 1,500 ft of Cretaceous shelf and shore-zone deposits. Sand and limestone are quarried in and near the corridor to meet construction demands. The Trinity aquifer, an important regional aquifer, is within this map area.Bureau of Economic Geolog
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Geophysical investigations at Flowers Ranch, Hemphill County, Texas
Intera Inc. requested technical assistance from the Bureau of Economic Geology (BEG) to conduct ground-based geophysical surveys at Flowers Ranch to acquire noninvasive data that would help determine whether there was evidence for contamination of sedimentary strata and groundwater between the base of the Ogallala Formation and the ground surface near the Jones 5-49H well on the Flowers Ranch in Hemphill County, Texas. On May 19-21, 2011, BEG researchers conducted frequency- and time-domain electromagnetic induction (EM) geophysical measurements near the well to identify ground conductivity anomalies that could be associated with the presence of saline water introduced into the shallow subsurface during drilling activities at the site.
EM surveys consisted of:
1. Three ground-conductivity transects (Lines 1, 2, and 3, Fig. 1) in the vicinity of the well, the blowout feature on the bank of the creek east of the well, and along the axis of the creek upstream to measure apparent electrical conductivity of the ground to depths from a few to a few tens of meters.
2. Five time-domain EM soundings on the periphery of the 5-49H well pad (FR2, FR3, FR4, FR5, and FR7, Fig. 1) intended to produce multi-layer conductivity profiles between the ground surface and the base of the Ogallala Formation that could reveal conductivity anomalies that might be indicative of volumetrically significant salinization within the upper 300 m of the subsurface.
Dry soil and ground that is partly or completely saturated with fresh water have relatively low electrical conductivity (generally a few to a few tens of milliSiemens per meter [mS/m]; McNeill, 1980a). Ground that has been salinized through the introduction of highly conductive saline fluids (Hem, 1985) commonly associated with oil and gas drilling and production activities has much higher conductivities ranging from a few tens to a few hundred mS/m. Electrical geophysical methods such as EM and resistivity are thus highly effective in identifying salinized soil and groundwater.Bureau of Economic Geolog
Production of Hydrogen Sulphide by Members of the Colon Group of Bacteria
Not a little work has been done in the past few years in investigating the sulphur metabolism of the colon group of bacteria. So far no very definite conclusions seem to have been arrived at, and the results are rather conflicting. Myers (1920) suggests that hydrogen sulphide production in the intestinal tract is due to proteolytic organisms. He attempted to use hydrogen sulphide production for water analysis, but concludes: There is no constant relationship between the number of colon bacilli present from different animals and the amount of H2S produced. Other workers have believed the production of hydrogen sulphide in the intestinal tract to be due to the action of B. coli on traces of systine present. B coli is not generally considered a producer of this gas from peptone. Sasaki and Otuska (1912), Berger (1914), and Tanner (1917) report B. coli as giving hydrogen sulphide from cystine
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Geophysical investigations of salinization in Crittendon Field, Winkler County, Texas
Researchers at the Bureau of Economic Geology, The University of Texas at Austin, noninvasively measured the electrical conductivity of the ground near pipelines and monitor wells in the Crittendon Field in Winkler County, Texas. This geophysical survey, which supplemented an earlier survey completed in June 2008 (Paine and Collins, 2008), was completed to determine whether there is geophysical evidence of significant near-surface salinization where highly saline (and electrically conductive) produced water has infiltrated the shallow subsurface. Relatively dry soils such as those common in Winkler County have very low natural electrical conductivities. Addition of highly conductive saline water can increase the electrical conductivity of the soil by a factor of ten or more, making salinized ground a favorable target for geophysical surveys that measure the apparent conductivity of the ground. The geophysical instrument used in this project produces electrical conductivity profiles along a chosen path at the surface, much like borehole induction logs produce traces of conductivity change along a borehole. Segments showing sufficiently elevated conductivity are likely to be salinized within the exploration depth range of the instrument, which ranges from as shallow as the upper few meters to as deep as 50 m depending on instrument configuration and conditions in the area.
Electromagnetic (EM) induction methods have proven to be very effective in locating salinized areas, mapping the extent and intensity of salinization, and locating potential salinity sources (Paine, 2003; Paine and others, 1997, 2007). Early geophysical instruments employed to estimate soil salinity indirectly included transducers and electrode arrays to measure soil conductivity (Enfield and Evans, 1969; Halvorson and Rhoades, 1974). During the late 1970s and early 1980s, investigators began developing and using EM instruments to measure ground conductivity noninvasively and estimate soil and water salinity at depths ranging from less than 1 to more than 50 m. The EM method is popular because it can be rapidly and noninvasively applied. It is effective because a large increase in electrical conductivity typically accompanies the introduction of extremely conductive saline water (several hundred to several thousand millisiemens per meter [mS/m] [Hem, 1985]) into fresh water, soil, and rock that generally have low natural conductivities (a few tens to a few hundred mS/m [McNeill, 1980a]).Bureau of Economic Geolog
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Evaluation of Contamination and Remediation Manvel Saltwater Disposal Site Brazoria County, Texas
The Manvel Saltwater Disposal (SWD) site (RRC Site No. 92-03-00003), which lies within the city limits of Manvel, Texas, in Brazoria County, was investigated by the Bureau of Economic Geology during a 5-month study from July through November 2015. The study included hydrogeological investigation, waste characterization, assessment of environmental impact, and evaluation of remediation options.
Saltwater, drilling waste, and crude oil have been disposed of at the site. There have been several instances of pit overflow, levee rupture, or both, resulting in contamination of the surrounding area by saltwater and crude oil. There have been several public complaints to regulatory agencies, centered on the perceived threat to groundwater quality. The site lies in the outcrop of the Beaumont Formation, where the formation is sufficiently thick to be a local aquifer, containing freshwater with chlorinities of less than 100 mg/L. The Beaumont lies above and is hydrologically distinct from the main water-yielding part of the Chicot aquifer.Bureau of Economic Geolog
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