74,667 research outputs found

    Letter from Major Sims to John T. Cunningham, on behalf of Senator W.E. Brock, 1930-01-06

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    A typed letter from Senator Brock's secretary, Major Sims in Washington, D.C. to John T. Cunningham in Clarksville, Tennessee. On behalf of Senator Brock, Major Sims is thanking Cunningham for his letter in regards to Charles Hanratty. Sims assures Cunningham it will be brought to Senator Brock's attention hen he returns to his office

    Major Projects Branch

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    This archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Title from PDF caption (viewed on December 26, 2014)Mode of access: Internet from the Oregon Government Publications Collection.Text in Englis

    Major Projects Branch

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    This archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Title from PDF caption (viewed on March 31, 2015).Mode of access: Internet from the Oregon Government Publications Collection.Text in English

    Battery Electric Vehicles (BEVs) in Underground Mines - The SIMS and NEXGEN SIMS projects [Elektronisk resurs] : [Batterimaskiner i underjordsgruvorna – SIMS och NEXGEN SIMS projekten]

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    Att ersätta dieselmaskiner med elfordon i underjordsgruvor har identifierats av gruvindustrin som ett kritiskt steg för att förbättra arbetsmiljön genom att minska dieselavgaser, samtidigt som man sänker elkostnaden för gruvventilation genom att minska behovet och minska utsläppen av växthusgaser. Alla dessa är viktiga krav för att uppnå en hållbar framtida gruvbrytning under jord, inklusive ett mål om noll koldioxidutsläpp och en mycket låg koncentration av atmosfäriska föroreningar på arbetsplatser.Av alla typer av elfordon är batterimaskiner (Battery Electric Vehicles – BEVs på engelska) den mest lämpliga för underjordiska gruvdrift på grund av sin flexibilitet. Med den senaste utvecklingen inom batteriteknologi har tillförlitliga BEVs tillverkats sedan 2016. En undersökning måste dock göras för att säkerställa att de introduceras smidigt i den operativa verksamheten. Därför har Europeiska unionen (EU) finansierat två projekt, nämligen SIMS och NEXGEN SIMS där flera BEVs ska utvärderas vid flera gruvor inom EU. Den här artikeln beskriver några resultat av dessa försök som bland annat inkluderar förbättring av arbetsmiljön, förbrukningen av elkraft samt hur tekniken uppfattas av operativ personal och ledning. Studien omfattar resultat från intervjuer av verksamheter utanför EU-projektet.Replacing diesel machines with electric vehicles in underground mines has been widely acknowledged by the mining industry as a critical step to improve working conditions by reducing diesel exhaust contaminants, whilst also lowering mine ventilation electrical power cost by reducing mine airflow requirement and reducing greenhouse gas emissions. All of these are major requirements to achieve sustainable future underground mining practices, including a target of zero carbon emissions and a very low concentration of atmospheric contaminants in workplaces.Among all types of electric vehicles, Battery Electric Vehicles (BEVs) is the most suitable for underground mining application due to its flexibility. With the recent developments in battery technology, reliable BEVs have been manufactured since 2016. However, an investigation must be carried out to ensure their smooth introduction. Therefore, the European Union (EU) has funded two projects namely SIMS and NEXGEN SIMS where several BEVs were trialled at several EU mines. This paper outlines some results of these trials which include, among others, improvement of working conditions, power consumption, perception of the mineworkers, and perception of the mine management. Moreover, perception of the management of mines that are not part of the project consortium but have trialled BEVs is also outlined in this paper.</p

    Major Leonidas and Mrs. Lola Sims

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    Formal portrait of Mr. Leonidas "Lon" and Mrs. Lola Sims. They lived in Palmetto. She was a dressmaker

    General Benjamin Butler Letter Regarding the naming of Newport News, Virginia

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    Digital images of an original letter written by Former Union Major-General Benjamin Butler in reply to a query by author, Edwin Everett Hale on how Newport News, Virginia had received it's name. both sides of the original letter are included along with a typed transcription of the letter

    Major, Kevin

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    The fonds consists of records created and received by Kevin Major as a Canadian writer, editor and teacher between 1974 and 2014. Material includes correspondence with family, friends, writers, editors, agents and readers; contracts and royalty statements; material related to author readings and appearances at literary festivals; school visits and other author appearances; literary awards received by the author; literary awards juries the author participated in; as well as general media coverage about the author. The fonds contains materials related to each of the author’s published works, including administrative documents, research, manuscript drafts and media coverage. The fonds also includes documentation about the author’s personal life, including materials related to his education, his teaching career, travel, and family life. The types of documents include letters and e-mails, transcripts, posters, contracts, reports, research notes, manuscripts, certificates, books, newspapers and journals, photographs, slides, interviews, and audio/visual materials in a variety of media: cassette tapes, CDs, CD-ROMs, DVDs and VHS tapes

    Orchestra music. Selections

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    Recorded during a live performance at Dalton Center Recital Hall, Western Michigan University, Kalamazoo, Michigan, November 9, 1997, 3:00 p.m., the 100th concert of the School of Music's 1997-1998 season.University Symphony Orchestra, Eric Shumsky, conductor ; Lori Sims, piano soloist (2nd work)Information from performance program.Overture to The magic flute -- Piano concerto no. 20 in D minor, K.466 -- Symphony no. 41 in C major, K. 551 (Jupiter)

    Detection of hopanes and steranes in single oil-bearing fluid inclusions using ToF-SIMS

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    Hopanes and steranes are key biomarkers when tracking early evolution of life on Earth. A potential contamination-free source of Precambrian biomarkers is oil-bearing fluid inclusions as the oil has been secluded from the environment since the formation of the inclusion. Due to presence of often several generations of inclusions it can be problematic to assign the biomarkers to specific inclusions. It has, however, because of the small size of inclusions (5-30 µm), not been possible to analyse single oil-bearing fluid inclusions. We present here an approach employing time-of-flight secondary ion mass spectrometry (ToF-SIMS) to selectively open individual oil inclusions in situ by ion etching, and precisely analyse their picoliter content for steranes and hopanes. A number of oil-bearing inclusions from hydrothermal veins in the Siljan impact structure in south-central Sweden were analysed. The approach used for analysis of a single inclusion consisted of the following steps i) localization of suitable inclusion in double polished thin section with optical microscopy, ii) opening of inclusion by ion etching with C60+ gun inside the ToF-SIMS instrument while recording in real-time the opening of the inclusion and, iii) analysis of the exposed inclusion contents with ToF-SIMS. The micrographs and the ToF-SIMS ion images collected before, during and after analysis ensured the correct inclusion had been analysed. ToF-SIMS spectra reconstructed from analysis times and 2D regions of interest with increased organic ion signal showed a large number of organic peaks (up to m/z 500) that are characteristic for a crude oil. Comparison of the reconstructed spectra with those of a Siljan seep oil, which has previously been analysed with ToF-SIMS, showed a high degree of resemblance, as expected from the geological interpretation of the origin on the oils. All major characteristic peaks for several hopanes and steranes were detected in the mass spectra from the single fluid inclusion (Fig. 1). The agreement with respect to mass accuracy (&lt; 50 ppm), fragment pattern and isotope distributions between these peaks and those observed in spectra from standard samples and from hopanes and steranes in the Siljan seep oil, provide strong evidence for the presence of hopanes and steranes in the analysed single fluid inclusions. The results thus demonstrate that the approach presented here has the capability to detect specific biomarkers in individual single oil inclusions. It is to our knowledge the first time hopanes and steranes have been detected in single oil-bearing fluid inclusins and the next step will be to analyse single oil-bearing fluid inclusions in Precambrian rocks with ToF-SIMS in search for organic biomarkers. Detection of hopanes and steranes in such an inclusion could help to answer questions regarding early evolution of life on Earth, including the first appearance of the eukaryotes on Earth.</p
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