12,607 research outputs found

    Improved driven pile design and construction control: A dynamic load test program of Illinois transportation bridge foundations with machine learning insights

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    Driven pile foundations are the most prevalent type of deep foundation system employed in the United States and in Illinois. A five-year dynamic load test field program was conducted on transportation highway bridge pile foundations to generate a database of measured axial pile capacity, pile setup, and driving induced pile stresses for Illinois soil conditions and construction practice. The database provides a performance baseline for existing methodologies, regional LRFD calibration, support for increased reliance on pile setup in pile design, and improved construction control for pile capacity and pile integrity verification. Pile foundations are typically composed of large quantities of relatively low-cost piles. Therefore, a reduction in the average required pile length to achieve nominal required bearing, required pile section size, frequency of pile splices, and size of cutoff lengths will increase foundation efficiency and result in significant cost savings. The primary objective of this dissertation, associated field research program, and resultant dynamic pile load test database is to increase the efficiency of pile design and improve construction control techniques for pile bridge foundations in Illinois. Pile efficiency is increased through 1) calibration of axial pile capacity methods for design, monitoring, and capacity verification 2) quantification and modeling of pile setup by pile and soil type, and 3) quantification and modeling of pile stresses to ensure pile integrity for Illinois soils. Pile design methods are improved through quantification of pile setup rate and magnitude for Illinois soil types (dominant soil texture along embedment length: clay, sand, mixed) and pile section (H-pile or closed ended shell) and development of respective correlation parameters. In addition to the evaluation of selected pile setup methods applied in common practice several modified formulas, new formula frameworks, and machine learning based approaches were examined. Application of separate resistance factors for pile setup and end-of-driving resistance are examined to differentiate the dissimilar magnitudes of uncertainty in these components of axial pile resistance. A log linear time based setup model is developed with additional terms to account for differences in observed setup correlated with average standard penetration test (SPT) blow count along the pile embedment length in Illinois soils. A rapid site evaluation tool is developed using a machine learning based approach to classify SPT borings for the occurrence or absence of significant setup relevant for design. Significant setup is defined as a change in total capacity greater than twenty percent. Dynamic formulas are reviewed, implicit setup is quantified by soil profile texture, and an explicit setup framework (ESF) is developed. Three databases of dynamic field tests are reviewed to quantify inherent setup in five common dynamic formulas for Illinois soils, Wisconsin soils, and national soils databases. Two new methods are developed for predicting pile induced driving stresses 1) wave equation calibrated mechanistic formula approach (Illinois Simplified Stress Method, SSF) and 2) a machine learning approach applying gradient boosted regression trees. The results from this research have been implemented by IDOT to successfully transition pile design methods for bridge foundations from allowable stress design (ASD) to load resistance factor design (LRFD) and support the application of database derived resistance factors larger than default code values specific to Illinois soils and construction practice.LimitedAuthor requested closed access (OA after 2yrs) in Vireo ETD syste

    How the Philosophy of Friedrich Nietzsche can be succinctly encapsulated within his Apollonian-Dionysian dichotomy

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    This thesis aims to illustrate that the broad philosophy of Friedrich Nietzsche can be subordinated to his conceptual dichotomy: the Apollonian-Dionysian dichotomy. Through an analysis of the Birth of Tragedy, Beyond Good and Evil, Twilight of the Idols, as well as a brief analysis of the Will to Power, I will make the case that the dichotomy is the umbrella under which all Nietzschean concepts are to be read and understood. The texts that were chosen represent key stages in NietzscheÔÇÖs intellectual development ÔÇô from the Birth of Tragedy, which marks the beginning of Nietzschean philosophy; to Twilight of the Idols, which represents the end. The constituent parts of the dichotomy are to be understood in two contexts: firstly, the terms (Apollonian/Dionysian) are used to denote the forces required for the creation of art; secondly, the terms come to signify the type of individual who makes use of those forces as it is the case that different types of art can be created by different types of men. Nietzschean philosophy is to be understood through art as it is explicitly stated that the essence of existence is one of a perpetual Becoming wherein there exists only that which is created by man, for man, in service of manÔÇÖs own will to power. All attempts to discern a fixed Being in-itself existing outside of this will to power are false and are indicative of a weak and sickly disposition, the symptoms of which are found in the progenitorsÔÇÖ art (be it a morality, table of categories, or a transcendent deity). Through the positing of the thing-in-itself as the will to power Nietzsche conceptualises the world of Becoming as a canvas onto which two different types of men imprint a Being which reveals, physiologically, their endowment as either Apollonian or Dionysian

    COMPARATIVE ANALYSIS OF THE RESULTS OF STANDARD AND ACCELERATED FIELD TESTS OF PILE FOUNDATIONS IN PERMAFROST SOILS

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    The relevance of the work consists in the analysis of the results of field control tests of soils with a static load on indentation with full-scale piles, performed according to accelerated and standard methods in conditions of permafrost spreading. The timing of soil testing by piles allows you to adjust and accelerate the pace of construction and installation work on the device of the ┬źzero cycle┬╗ of foundations, reduce the time for making various design decisions and erecting technical systems aimed at ensuring the mechanical safety of the designed structures in terms of creating and maintaining the required temperature and strength regime of the foundation soils (thermal stabilization of soils) and its further control during the construction and operation of buildings and structures (geotechnical monitoring). The paper analyzes two calculation methods, provides an analysis of the rational use of each method. Objective: calculation and comparison of design loads treated during the production of static tests for pressing piles into the ground, based on the requirements of regulated and existing measurement methods (standard and accelerated) in cryolithozone conditions and assessment of the possibility of using one or another calculation method. Methods. At the first stage of the study, the issues of organization and technology of production of field control tests of piles in the northwestern part of the Amur region were considered by evaluating the information displayed in the domestic regulatory documentation: SP 25.13330.2020 and SS 5686-2020. The engineering and geocryological conditions of the work area are described. At the second stage, an assessment of 11 field tests was carried out, calculations and comparative analysis of the bearing capacity and design loads on piles were carried out according to the test results. Results. The obtained data are recommended to be used in the construction of buildings and structures on pile foundations in conditions of the spread of permafrost soils for monitoring and operational management of the pace of construction of the ┬źzero cycle┬╗ of foundations, for assessing the economic component of the project and obtaining reliable and necessary data on the state of the geological environment

    Examples of works to practice staccato technique in clarinet instrument

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    Klarnetin staccato tekni─čini g├╝├žlendirme a┼čamalar─▒ eser ├žal─▒┼čmalar─▒yla uygulanm─▒┼čt─▒r. Staccato ge├ži┼člerini h─▒zland─▒racak ritim ve n├╝ans ├žal─▒┼čmalar─▒na yer verilmi┼čtir. ├çal─▒┼čman─▒n en ├Ânemli amac─▒ sadece staccato ├žal─▒┼čmas─▒ de─čil parmak-dilin e┼č zamanl─▒ uyumunun hassasiyeti ├╝zerinde de durulmas─▒d─▒r. Staccato ├žal─▒┼čmalar─▒n─▒ daha verimli hale getirmek i├žin eser ├žal─▒┼čmas─▒n─▒n i├žinde et├╝t ├žal─▒┼čmas─▒na da yer verilmi┼čtir. ├çal─▒┼čmalar─▒n ├╝zerinde titizlikle durulmas─▒ staccato ├žal─▒┼čmas─▒n─▒n ilham verici etkisi ile m├╝zikal kimli─če yeni bir boyut kazand─▒rm─▒┼čt─▒r. Sekiz ├Âzg├╝n eser ├žal─▒┼čmas─▒n─▒n her a┼čamas─▒ anlat─▒lm─▒┼čt─▒r. Her a┼čaman─▒n bir sonraki performans ve tekni─či g├╝├žlendirmesi esas al─▒nm─▒┼čt─▒r. Bu ├žal─▒┼čmada staccato tekni─činin hangi alanlarda kullan─▒ld─▒─č─▒, nas─▒l sonu├žlar elde edildi─či bilgisine yer verilmi┼čtir. Notalar─▒n parmak ve dil uyumu ile nas─▒l ┼čekillenece─či ve nas─▒l bir ├žal─▒┼čma disiplini i├žinde ger├žekle┼čece─či planlanm─▒┼čt─▒r. Kam─▒┼č-nota-diyafram-parmak-dil-n├╝ans ve disiplin kavramlar─▒n─▒n staccato tekni─činde ayr─▒lmaz bir b├╝t├╝n oldu─ču saptanm─▒┼čt─▒r. Ara┼čt─▒rmada literat├╝r taramas─▒ yap─▒larak staccato ile ilgili ├žal─▒┼čmalar taranm─▒┼čt─▒r. Tarama sonucunda klarnet tekni─čin de kullan─▒lan staccato eser ├žal─▒┼čmas─▒n─▒n az oldu─ču tespit edilmi┼čtir. Metot taramas─▒nda da et├╝t ├žal─▒┼čmas─▒n─▒n daha ├žok oldu─ču saptanm─▒┼čt─▒r. B├Âylelikle klarnetin staccato tekni─čini h─▒zland─▒rma ve g├╝├žlendirme ├žal─▒┼čmalar─▒ sunulmu┼čtur. Staccato et├╝t ├žal─▒┼čmalar─▒ yap─▒l─▒rken, araya eser ├žal─▒┼čmas─▒n─▒n girmesi beyni rahatlatt─▒─č─▒ ve isteklili─či daha artt─▒rd─▒─č─▒ g├Âzlemlenmi┼čtir. Staccato ├žal─▒┼čmas─▒n─▒ yaparken do─čru bir kam─▒┼č se├žimi ├╝zerinde de durulmu┼čtur. Staccato tekni─čini do─čru ├žal─▒┼čmak i├žin do─čru bir kam─▒┼č─▒n dil h─▒z─▒n─▒ artt─▒rd─▒─č─▒ saptanm─▒┼čt─▒r. Do─čru bir kam─▒┼č se├žimi kam─▒┼čtan rahat ses ├ž─▒kmas─▒na ba─čl─▒d─▒r. Kam─▒┼č, dil atma g├╝c├╝n├╝ vermiyorsa daha do─čru bir kam─▒┼č se├žiminin yap─▒lmas─▒ gereklili─či vurgulanm─▒┼čt─▒r. Staccato ├žal─▒┼čmalar─▒nda ba┼čtan sona bir eseri yorumlamak zor olabilir. Bu a├ž─▒dan ├žal─▒┼čma, verilen m├╝zikal n├╝anslara uyman─▒n, dil at─▒┼č performans─▒n─▒ rahatlatt─▒─č─▒n─▒ ortaya koymu┼čtur. Gelecek nesillere edinilen bilgi ve birikimlerin aktar─▒lmas─▒ ve geli┼čtirici olmas─▒ te┼čvik edilmi┼čtir. ├ç─▒kacak eserlerin nas─▒l ├ž├Âz├╝lece─či, staccato tekni─činin nas─▒l ├╝stesinden gelinebilece─či anlat─▒lm─▒┼čt─▒r. Staccato tekni─činin daha k─▒sa s├╝rede ├ž├Âz├╝me kavu┼čturulmas─▒ ama├ž edinilmi┼čtir. Parmaklar─▒n yerlerini ├Â─čretti─čimiz kadar belle─čimize de ├žal─▒┼čmalar─▒n kaydedilmesi ├Ânemlidir. G├Âsterilen azmin ve sabr─▒n sonucu olarak ortaya ├ž─▒kan yap─▒t ba┼čar─▒y─▒ daha da yukar─▒ seviyelere ├ž─▒karacakt─▒r

    Wooster Magazine: Spring 2023

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    The spring 2023 issue of Wooster magazine features alumni influencing change in their communities around the world, including John Carwile ÔÇÖ81, career member of the U.S. Foreign Service; Rashmi Ekka ÔÇÖ08, international development consultant; Samira El-Adawy ÔÇÖ13, Special Olympics youth manager in the Middle East and North Africa; Ishtiaq Ghafoor ÔÇÖ00, a diplomat with the British Foreign Service; Sarah Haile ÔÇÖ03, a biostatistician at University of Zurich; Kurt Russell ÔÇÖ94, 2022 National Teacher of the Year; and Lauren Vargo ÔÇÖ13, climate change researcher in New Zealand. Also featured are students who have attended the annual Athens Democracy Forum for the past five years and recent international graduates taking advantage of opportunities to gain experience in STEM fields. The issue also includes an interview with WoosterÔÇÖs incoming 13th president, Dr. Anne McCall.https://openworks.wooster.edu/wooalumnimag_2011-present/1045/thumbnail.jp

    Elite perceptions of the Victorian and Edwardian past in inter-war England

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    It is often argued by historians that members of the cultivated Elite after 1918 rejected the pre-war past. or at least subjected it to severe denigration. This thesis sets out to challenge such a view. Above all, it argues that inter-war critics of the Victorian and Edwardian past were unable to reject it even if that was what they felt inclined to do. This was because they were tied to those periods by the affective links of memory, family, and the continually unfolding consequences of the past in the present. Even the severest critics of the pre-war world, such as Lytton Strachey, were less frequently dismissive of history than ambivalent towards it. This ambivalence, it is argued, helped to keep the past alive and often to humanise it. The thesis also explores more positive estimation of Victorian and Edwardian history between the wars. It examines nostalgia for the past, as well as instances of continuity of practice and attitude. It explores the way in which inter-war society drew upon aspects of Victorian and Edwardian history both as illuminating parallels to contemporary affairs and to understand directly why the present was shaped as it was. Again, this testifies to the enduring power of the past after 1918. There are three parts to this thesis. Part One outlines the cultural context in which writers contemplated the Victorian and Edwardian past. Part Two explores some of the ways in which history was written about and used by inter-war society. Part Three examines the ways in which biographical depictions of eminent Victorians after 1918 encouraged emotional negotiation with the pas

    Building body identities - exploring the world of female bodybuilders

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    This thesis explores how female bodybuilders seek to develop and maintain a viable sense of self despite being stigmatized by the gendered foundations of what Erving Goffman (1983) refers to as the 'interaction order'; the unavoidable presentational context in which identities are forged during the course of social life. Placed in the context of an overview of the historical treatment of women's bodies, and a concern with the development of bodybuilding as a specific form of body modification, the research draws upon a unique two year ethnographic study based in the South of England, complemented by interviews with twenty-six female bodybuilders, all of whom live in the U.K. By mapping these extraordinary women's lives, the research illuminates the pivotal spaces and essential lived experiences that make up the female bodybuilder. Whilst the women appear to be embarking on an 'empowering' radical body project for themselves, the consequences of their activity remains culturally ambivalent. This research exposes the 'Janus-faced' nature of female bodybuilding, exploring the ways in which the women negotiate, accommodate and resist pressures to engage in more orthodox and feminine activities and appearances

    The Grapes of Wrath: An Artful Jurisprudence

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    By documenting the harsh realities of the era, The Grapes of Wrath (ÔÇśGOWÔÇÖ) calls to mind those distressing UN Country Reports that both describe and denounce avoidable landscapes of poverty, hunger, homelessness, and dispossession. Steinbeck embeds the novelÔÇÖs harrowing images within an unforgiving framework of human rights violations, most of which flow directly from human greed. The novelÔÇÖs prescient yet timeless warnings speak not only to the various humanitarian crises brought about by climate change and unethical commercial practices, but also to many ongoing, perennial global atrocities: corrupt political regimes, gendered injustices, ethnic cleansing, and displacement of entire populations. It is landscapes such as these that still serve to both spark and underpin refugee existence: the need for a compassionate system of asylum-granting, firmly grounded in human rights law, clearly remains as urgent now as it was in SteinbeckÔÇÖs time. As witnesses to such chronic disregard for human dignity, readers of the novel are not only tasked with judging those responsible: we must also evaluate the perennial failings of the various global and domestic systems that have enabled and perpetuated such egregious rights violations. The final scene, drenched in symbolism, still serves as a quasi-courtroom: before the bared breast of a Lady Justice figure we become jurists, and cannot help apportioning blame for all that has been witnessed over the course of the JoadÔÇÖs journeying. A close reading now, almost a century later, serves as a timely reminder that similar atrocities continue: migrant and refugee populations remain especially vulnerable, not least where they have been displaced by poverty or political crises from all that was once familiar. This article argues that the novelÔÇÖs central focus on ÔÇťsocial realismÔÇŁ demands much in the way of ÔÇťmoral and emotional effortÔÇŁ (Benson, 9) from the reader: we should leave the book with nothing less than a highly ÔÇťactive compassion for the dispossessedÔÇŁ (Wyatt, 12). It is perhaps best viewed as a collection of first-hand witness testimonies, akin to those gathered and collated by the United Nations (UN) various Committees and which serve to reveal, record, and address the horrendously fine detail of abject human rights violations and their impacts upon the most vulnerable. It is SteinbeckÔÇÖs ÔÇťconsistently catchy eyewitness qualityÔÇŁ (De Mott, xiii) which both brings and retains this timeless sense of urgency and immediacy, without directing any clear response: it is up to the conscience of the individual reader to determine how best to process or address the various challenges presented

    Factors shaping future use and design of academic library space

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    COVID is having immediate and long-term impacts on the use of libraries. But these changes will probably not alter the importance of the academic library as a space. In the decade pre COVID libraries saw a growing number of visits, despite the increasing availability of material digitally. The first part of the paper offers an analysis of the factors driving this growth, such as changing pedagogies, diversification in the student body, new technologies plus tighter estates management. Barriers to change such as academic staff readiness, cost, and slow decision making are also presented. Then, the main body of the paper discusses emerging factors which are likely to further shape the use of library space, namely: concerns with student well-being; sustainability; equality, diversity and inclusion, and decolonisation; increasing co-design with students; and new technologies. A final model captures the inter-related factors shaping use and design of library space post COVID

    ÔÇśSomething extraÔÇÖ: In defence of an uncanny humanism

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    This article proposes literature and psychoanalysis as forms of critical education, putting in urgent question the market-driven, instrumental models of learning that currently dominate higher education policy. In psychoanalytic terms, it argues, the primary mechanism at work in such a policy is what psychoanalysis calls splitting, which involves above all a kind of banishment of doubt and a rigid assurance in the rightness of the status quo that precludes meaningful change or transformation in the self and the world. The article goes on to identify in psychoanalysis and literature more ÔÇśunsplitÔÇÖ modes of thinking that refuse the reduction of the human being to a purely functional value. It ends with a reading of Kazuo IshiguroÔÇÖs Never Let Me Go as a critical meditation on this reductive tendency
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