61 research outputs found
Concrete with Organic Waste Materials as Aggregate Replacement
No full textThe disposal of high volumes of organic waste is a global issue. Using organic waste instead of sand as an aggregate material for concrete could reduce the strain on waste treatment processes and on the extraction of finite resources. At the same time, it could be a climate change mitigation strategy, by storing the biogenic carbon contained in the organic waste. This project investigated the viability of replacing 10% of fine aggregate in concrete with various organic waste materials, namely rice husk ash, wood ash, corncob granules, and wheat straw. The fresh concrete’s properties were studied using the slump test, and the hardened concrete’s mechanical properties were measured using the compressive strength and flexural strength tests. In this study, 14 days of curing were considered for the mechanical tests, although the 28-day mechanical strength is more generally accepted. The mechanical performances along with a life cycle assessment (LCA) comparison between the concrete with organic waste and traditional concrete were conducted. The results suggested that rice husk ash and wood ash are the most-suitable organic waste products for use as aggregate replacers considering the mechanical properties. The concrete samples incorporating wheat straw and corncob granules exhibited relatively low strength; unless advanced treatment methods are applied to enhance the concrete’s performance, the utilization of these organic wastes in concrete may be limited. The environmental impact assessment of traditional concrete shows that the main contributor to almost every impact category is the production of Portland cement. Sand production contributes only marginally to the overall impact of the concrete. In terms of life-cycle greenhouse gas (GHG) emissions, traditional concrete exhibits the lowest GWP impact per cubic meter when mechanical properties are included in the functional unit used for the comparison. Nevertheless, concrete samples with wood ash and rice husk ash partially offset their lower compressive strength with higher carbon sequestration, showing a similar GWP impact to traditional concrete. This makes them promising alternatives, especially for cases where limited compressive strengths are needed. Further investigations to improve their mechanical properties and optimize their performance are warranted
Issue brief, racial/ethnic equity in postsecondary education and training
No full textprepared by: Amy G. Cox, Elizabeth Martinez, Olga Levadnaya, Vern Mayfield, Betsy Simpkins, and Shiyan Tao.Title from PDF caption (viewed on October 15, 2020).This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references.Mode of access: Internet from the Oregon Government Publications Collection.Text in English
Deep western boundary currents in the southwestern Pacific Ocean: WOCE PCM-9 : February 1991-December 1992
No full textby R. Dale Pillsbury, D. Barstow, J. M. Bottero. G. Pittock, D. C. Root, J Simpkins III, R.E. Still and T. Whitworth III.This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references (page 7).National Science Foundation OCE-9002709.Mode of access: Internet from the Oregon Government Publications Collection.Text in English
Current meter data from the Samoan Passage experiment: world ocean circulation experiment current meter array PCM-11 : September 1992-February 1994
No full textby R. Dale Pillsbury, Daniel L. Rudnick, J.M. Bottero, G. Pittock, D.C. Root, J. Simpkins III and R. E. Still.This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references (page 5).National Science Foundation OCE-9496015.Mode of access: Internet from the Oregon Government Publications Collection.Text in English
The Home Health Aide Experience: Opportunities for Occupational Therapy
No full textThe author would like to acknowledge her faculty advisor Dr. Shirley O\u27Brien, OTR/L, FAOTA, and her committee member Dr. Leah Simpkins, OTR/L, CPAM, for their guidance and ongoing support throughout this research study. She would also like to thank the agency and the home health aides who made this project possible through their participation. Finally, she would like to thank her family, especially her mother for their encouragement and unwavering belief in her. Without these individuals, this study would not have been possible. She is forever grateful for this learning experience
The Sinclair Lewis Society Newsletter, Vol. 11, No. 2
No full text“Interview with Richard Lingeman,” by Sally E. Parry, Illinois State University
“Lewis Catches Flivver Fever: Author Enjoyed the Early Motoring Days,” by Dave Simpkins, Sauk Centre Herald
“Arrowsmith in Japanese,” by Rusty Allred
“Lewis, London-and Hemingway?,” by Robert E. Fleming, University of New Mexico
“Edith Wharton in Sinclair Lewis,” by Martin Bucco, Colorado State University
“The Art of the Literary Feud,” rev. of Literary Feuds: A Century of Celebrated Quarrels-From Mark Twain to Tom Wolfe by Anthony Arthur; by Sally E. Parry, Illinois State University
“Hemingway Read Some Lewis,” by Hilary Justice, Illinois State University
“Enlightened on Lewis,” by Dave Simpkins, Sauk Centre Heraldhttps://ir.library.illinoisstate.edu/slsn/1045/thumbnail.jp
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A Country With No Name
No full textA Country With No Name is a collection of thirty-four poems with a preface explaining the style and influences of the author. The preface defends plain-language techniques in poetry, using W.H. Auden, Wislawa Szymborska, and Paul Simon as examples of poets who take a similar approach. The poems range in topic from personal and familial to societal and abstract. The main subjects encompass interpersonal relationships, romantic and otherwise, and larger concerns, such as the effects of war and modern lifestyles
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Visions of Light In the Poetry of William Blake and Emily Dickinson
No full textIn this study the author compares the broad outlines of Blake's and Dickinson's thought, pointing out evidence of decisive Biblical influence not only on the content of their thought but on their attitude toward language as well. the author argues that both poets assumed the philosophical position of Job as they interpreted the Bible independently and as they explored many dimensions of experience in the fallen world. The author represents their thought not as a fixed system but as a faith-based pattern of Christian/Platonic questing for truth
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The Ties that Bind : Breaking the Bonds of Victimization in the Novels of Barbara Pym, Fay Weldon and Margaret Atwood
No full textIn this study of several novels each by Barbara Pym, Fay Weldon, and Margaret Atwood, I focus on two areas: the ways in which female protagonists break out of their victimization by individuals, by institutions, and by cultural tradition, and the ways in which each author uses a structural pattern in her novels to propel her characters to solve their dilemmas to the best of their abilities and according to each woman's personality and strengths
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