Academic literature on the topic 'Mind map box'
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Journal articles on the topic "Mind map box"
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Ludden, David. "Presidential Address: Maps in the Mind and the Mobility of Asia." Journal of Asian Studies 62, no. 4 (November 2003): 1057–78. http://dx.doi.org/10.2307/3591759.
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A map is a peculiar kind of visual text. It seems a mere instrument of utility, showing us where to go and how to put things in place. Invisible ingredients, however, render every map a Pandora's box. Emotions are undoubtedly the most potent of all of the invisible elements in maps. The cartographic passions that make the headlines may be national ones, but in cities, towns, and villages, people have strong feelings about local maps. Street gangs, real estate developers, insurance companies, zoning boards, planners, and electorates invest maps with local politics. Landowners love their property lines. Universities map their campus identity. The Association for Asian Studies (AAS) signifies itself succinctly in its logo, a map of Asia. Such territorial attachments and many others have striking similarities: they infuse boundaries with iconic significance, tinged with feelings of security, belonging, possessiveness, enclosure, entitlement, and exclusion.
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Aini, Desti Nur. "Lesekiste Mit übergangsstufe (Reading Box) In German Language Learning." KnE Social Sciences 1, no. 3 (April 13, 2017): 326. http://dx.doi.org/10.18502/kss.v1i3.753.
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<p>Reading activities in learning German as a foreign language are not simply done during the teaching and learning process. In European standard curriculum (GER= Germanische Europäische Referenzrahmen), reading constitutes one of the language test items. Reading in German as a foreign language is suggested to improve students’ competence in German. Beyond that, reading also leads to the improvement of knowledge related to German culture. In order to level up and optimize the interest of high school students to learn German language, one of the strategies that can be carried out is <em>Lesekiste mit Übergangsstufe </em>or reading box. This box provides some texts for the students. These texts are stacked based on difficulty levels, starting from the easy towards the intermediate, and complex ones. In this activity, the students have equal access to all the texts available in the box. Furthermore, students can be asked to retell the text through “Darstellungsformen” (retelling technique) by using mind map, charts, or sketch (Skizze). This activity is designed to achieve the improvement of teacher’s competence for the sake of the teachers themselves and for the students’ learning development.</p><p><strong> </strong></p><p><strong>Keywords: </strong><em>Reading activity, German as a foreign language, Lesekiste mit Übergangsstufe<strong></strong></em></p>
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Lavrenko, N. N. "Cartographical modelling of the ecological-resource potential of territory." Geobotanical mapping, no. 1996 (1997): 53–55. http://dx.doi.org/10.31111/geobotmap/1996.53.
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The multifacetous scientific activity of Victor B. Sochava has found reflection in the numerous contributions-monographs and cartographical works issued by him and his pupils during the 70–80s. Now they are represent a base for development of modern trends of thematic mapping including ecological ones. Ecological mapping involves the spatial reflection of various natural and technogenic structures and their relationships. The cartographical modelling of territory potential is referred to this set of problems. Modelling in this aspect represents the désintégration of complex natural systems through classification and formalization into simple inner elements. Concerning the resources we have to bear in mind renewed and interconnected components of nature (forest, soil, water). This problem is subdivided into a number of tasks, namely: 1. determination of functions and characters of interconnected resources; 2. modelling of environmental and row material ecological functions of resources; 3. subdivision of space into territorial ecosystems; 4. classification, formalization, normalization and construction of the resource potential of ecosystems. System transformation of basic theoretical principles, formulated by V. Sochava, enables ecological map to design and to model various states of resource potential of territory. Solving the problem of cartographic modelling of ecological-resource potential of territory one have to seek for universal territorial ecosystem. Such unit is a drainage basin. The privilege to deal with ecosystem of water-drainage basin lays in possibility of limit determination, analysis of interconnected resources (forest, soil, water) by means of objective models or «black box» model. The new ideas appear: concrete drainage basin represents a spatialnon renewal recourse: results of management may be estimated on the ecosystem exit. At the same time theoretical and practical experience in the mapping of all nature environment and economy components can be applied to the drainage basin ecosystems.
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Narayan, Vinod A. "Nipah virus outbreak in India: is it a bat-man conflict?" International Journal Of Community Medicine And Public Health 6, no. 4 (March 27, 2019): 1826. http://dx.doi.org/10.18203/2394-6040.ijcmph20191430.
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Nipah virus infection is a newly emerging zoonotic disease that spreads from animal to human. The fruit bats are the one of the carriers of Nipah virus which gets transmitted from bats to other animals mainly through body fluids. Nipah can cause asymptomatic infection to the acute respiratory syndrome and fatal encephalitis in human beings with a dreadful mortality rate of 70 per cent. This review article focused on role of bats in ecosystem and preventive measure to contain the virus by improving public health. In 2018 the outbreak of Nipah in Kerala state of India claimed 17 lives. It has indeed opened Pandora’s box exposing the role of general public, health department and social media and so on. The early detection and the well-oiled medical infrastructure in the state did wonders. Though social media have been accused of spreading misinformation leading to culling of bats, the people of Kerala responded with positive frame of mind. Prompt and synchronized efforts of all stakeholders like health workers, state government, scientists, researchers and central government led to timely and successful control of Nipah virus cases in Kerala.
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Kojima, S., M. Hatano, S. Okada, T. Fukuda, Y. Toyama, S. Yuasa, H. Ito, and T. Tokuhisa. "Testicular germ cell apoptosis in Bcl6-deficient mice." Development 128, no. 1 (January 1, 2001): 57–65. http://dx.doi.org/10.1242/dev.128.1.57.
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Bcl6 protein has been detected in testicular germ cells, mainly spermatocytes, of normal mice, but its physiological role is largely unknown. The number of spermatozoa in the cauda epididymis of adult Bcl6-deficient (Bcl6−/−) mice is lower than that of Bcl6+/+ mice. We have found numerous apoptotic spermatocytes at the metaphase I stage with induction of Bax protein in adult Bcl6−/− testes. Developmentally, the incidence of germ cell apoptosis of Bcl6−/− mice was similar to that of Bcl6+/+ mice until six weeks of age and increased after eight weeks of age. The incidence of apoptosis in heterozygous Bcl6+/− mice was also higher than that of Bcl6+/+ mice. Since the activated form of p38 MAP kinase was detected in spermatocytes of adult Bcl6−/− mice, the germ cell apoptosis may be induced by stressors. Treatment of testes of adult Bcl6+/+ mice with a mild hyperthermia resulted in germ cell apoptosis predominantly in metaphase I spermatocytes with induction of Bax protein and activation of p38 MAP kinase and this apoptosis mimics that in adult Bcl6−/− mice. Thus, Bcl6 may play a role as a stabilizer in protecting spermatocytes from apoptosis induced by stressors.
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Rowell, L. B., M. V. Savage, J. Chambers, and J. R. Blackmon. "Cardiovascular responses to graded reductions in leg perfusion in exercising humans." American Journal of Physiology-Heart and Circulatory Physiology 261, no. 5 (November 1, 1991): H1545—H1553. http://dx.doi.org/10.1152/ajpheart.1991.261.5.h1545.
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Our objective was to determine whether the chemoreflex from human muscle is elicited by small graded reductions in muscle blood flow (MBF) during mild exercise or whether this reflex has an obvious threshold associated with large changes in femoral venous lactate and H+ levels (i.e., as in dogs with high muscle oxidative capacity). Seven subjects exercised supine at 40, 87, and 142 W; lower body positive pressure (LBPP) was applied in 3-min steps at 25, 35, 45, and 50-60 mmHg with the lower body and the cycle ergometer in a sealed box. Estimated MBF (Fick) fell by 5.3 +/- 4.3 to 19.9 +/- 3.8% at four levels of LBPP over three work rates. Mean arterial pressure (MAP), heart rate (HR), and plasma norepinephrine (NE) concentration rose with increasing LBPP. MAP was significantly correlated with femoral venous pH, lactate, O2 tension, and O2 content during moderate and heavy exercise, without an apparent threshold. Percentage decreases in muscle vascular conductance exceeded the decreases in MBF twofold, indicating significant opposition to reduction in MBF by the chemoreflex. Approximately 50% of the correction of MBF back toward control (i.e., at 0 LBPP) could be explained by increased cardiac output, calculated from the rise in HR; the remaining correction could be attributed to both sympathetic vasoconstriction (indicated by high NE levels) and to mechanical effects of partial occlusion. Results suggest that in humans stepwise reductions in MBF gradually elicit muscle chemoreflexes with no apparent threshold at these levels of exercise.
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Wang, Yu-Jia, Yu-Wen Hsu, Che-Mai Chang, Chung-Che Wu, Ju-Chi Ou, Yan-Rou Tsai, Wen-Ta Chiu, Wei-Chiao Chang, Yung-Hsiao Chiang, and Kai-Yun Chen. "The Influence ofBMXGene Polymorphisms on Clinical Symptoms after Mild Traumatic Brain Injury." BioMed Research International 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/293687.
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Mild traumatic brain injury (mTBI) is one of the most common neurological disorders. Most patients diagnosed with mTBI could fully recover, but 15% of patients suffer from persistent symptoms. In recent studies, genetic factors were found to be associated with recovery and clinical outcomes after TBI. In addition, results from our previous research have demonstrated that the bone marrow tyrosine kinase gene in chromosome X(BMX), a member of the Tec family of kinases, is highly expressed in rats with TBI. Therefore, our aim in this study was to identify the association between genetic polymorphisms ofBMXand clinical symptoms following mTBI. Four tagging single nucleotide polymorphisms (tSNPs) ofBMXwith minimum allele frequency (MAF) >1% were selected from the HapMap Han Chinese database. Among these polymorphisms, rs16979956 was found to be associated with the Beck anxiety inventory (BAI) and dizziness handicap inventory (DHI) scores within the first week after head injury. Additionally, another SNP, rs35697037, showed a significant correlation with dizziness symptoms. These findings suggested that polymorphisms of theBMXgene could be a potential predictor of clinical symptoms following mTBI.
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Gutiérrez Martínez, Begoña. "Sonidos en serie. Interacciones entre imagen y música en Mad Men." EU-topías. Revista de interculturalidad, comunicación y estudios europeos 18 (January 17, 2020): 69. http://dx.doi.org/10.7203/eutopias.18.16843.
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La serie televisiva Mad Men (Mathew Weiner, 2007-2015) está ambientada en la década de 1960 en Nueva York y versa principalmente sobre el universo de la publicidad. Su banda sonora, de gran riqueza y variedad, contiene tanto temas compuestos ad hoc, como otros preexistentes. Nuestro objetivo es analizar las interacciones que se establecen entre imagen y música en la primera temporada de la serie empleando la metodología de análisis textual. Examinaremos su mundo sonoro, así como las sensaciones que produce para explicitar la experiencia de los espectadores. Con este fin, diseccionaremos diferentes escenas de la primera temporada en las que suenan temas musicales característicos de este texto audiovisual. En primer lugar, nos centraremos en los procesos creativos desarrollados por el compositor David Carbonara y la supervisora musical Alexandra Patsavas, responsables de la música de Mad Men. En segundo lugar, analizaremos distintas escenas en las que suenan los siguientes temas: «A Beautiful Mine» (RJD2, 2006); «Band of Gold» (Don Cherry, 1955); «On The Street Where You Live» (Vic Damone, 1956); «P.S. I Love You» (Bobby Vinton, 1967); «The Great Divide» (The Cardigans, 1996); «Água de beber» (Astrud Gilberto y Antonio Carlos Jobim, 1965); «Mad Men Suite» (David Carbonara, 2007); y «Don’t Think Twice, It’s All Right» (Bob Dylan, 1963). Por último, en las conclusiones expondremos cómo interactúa la música con las siguientes dimensiones del texto audiovisual: elementos formales de la serie; narrativa; y precisión histórica.
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Welt, S., A. M. Scott, C. R. Divgi, N. E. Kemeny, R. D. Finn, F. Daghighian, J. S. Germain, E. C. Richards, S. M. Larson, and L. J. Old. "Phase I/II study of iodine 125-labeled monoclonal antibody A33 in patients with advanced colon cancer." Journal of Clinical Oncology 14, no. 6 (June 1996): 1787–97. http://dx.doi.org/10.1200/jco.1996.14.6.1787.
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PURPOSE A phase I/II study was designed to determine the maximum-tolerated dose (MTD) of iodine 125-labeled monoclonal antibody A33 (125I-mAb A33), its limiting organ toxicity, and the uptake and retention of radioactivity in tumor lesions. PATIENTS AND METHODS Patients (N = 21) with advanced chemotherapy-resistant colon cancer who had not received prior radiotherapy were treated with a single 125I-mAb A33 dose. 125I doses were escalated from 50 to 350 mCi/m2 in 50-mCi/m2 increments. Radioimmunoscintigrams were performed for up to 6 weeks after 125I-mAb A33 administration. RESULTS All 20 patients with radiologic evidence of disease showed localization of 125I to sites of disease. Twelve of 14 patients, who underwent imaging studies 4 to 6 weeks after antibody administration, had sufficient isotope retention in tumor lesions to make external imaging possible. No major toxicity was observed, except in one patient with prior exposure to mitomycin who developed transient grade 3 thrombocytopenia. Although the isotope showed variable uptake in the normal bowel, gastrointestinal symptoms were mild or absent, and in no case did stools become guaiac-positive. The MTD was not reached at 125I doses up to 350 mCi/m2. However, cytotoxicity assays demonstrated that patients treated with the highest dose had sufficiently high serum levels of 125I-mAb A33 to lyse colon cancer cells in vitro. Among 21 patients, carcinoembryonic antigen (CEA) levels returned to normal in one patient and decreased by 35% and 23%, respectively, in two patients; one additional patient had a mixed response on computed tomography. Additional, significant responses were observed in those patients treated with chemotherapy [carmustine [BCNU], vincristine, flourouracil, and streptozocin [BOF-Strep]) after completion of the 125I-mAb A33 study. CONCLUSION Low-energy emission radioimmunotherapy with doses of up to 350 mCi/m2 of 125I-mAb A33 did not cause bowel or bone marrow toxicity. The modest antitumor activity in these heavily pretreated patients is encouraging because of lack of toxicity at the doses studied. The long radioactivity retention in tumors suggests that isotopes with a long half-life may have a therapeutic advantage, based on calculated dose delivery to tumor versus normal tissue. Due to the low bone marrow dose, further 125I trials with humanized mAb A33 are warranted, and controlled studies must be conducted to evaluate the combination of radioimmunotherapy and chemotherapy.
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Oliveira, Fábio Rodrigo de, Roberto Wagner Lourenço, Luis Gustavo Frediani Lessa, and Célia Regina Lopes Zimback. "FAVORABILIDADE À MECANIZAÇÃO AGRÍCOLA DE BACIAS HIDROGRÁFICAS POR MEIO DE SISTEMA DE INFORMAÇÕES GEOGRÁFICAS." ENERGIA NA AGRICULTURA 35, no. 3 (September 29, 2020): 415–25. http://dx.doi.org/10.17224/energagric.2020v35n3p415-425.
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FAVORABILIDADE À MECANIZAÇÃO AGRÍCOLA DE BACIAS HIDROGRÁFICAS POR MEIO DE SISTEMA DE INFORMAÇÕES GEOGRÁFICAS
FÁBIO RODRIGO DE OLIVEIRA1, ROBERTO WAGNER LOURENÇO2, LUIS GUSTAVO FREDIANI LESSA³, CÉLIA REGINA LOPES ZIMBACK3
1 Doutorando em Ciências Ambientais, Universidade Estadual Paulista “Júlio Mesquita Filho”, Instituto de Ciência e Tecnologia de Sorocaba. Avenida Três de Março, 511, Alto da Boa Vista, CEP: 18087180, Sorocaba, São Paulo, Brasil. E-mail: fabio.rodrigo@unesp.br
2 Livre-Docente Doutor em Geociências e Meio Ambiente e Professor Associado - Universidade Estadual Paulista “Júlio Mesquita Filho”, Instituto de Ciência e Tecnologia de Sorocaba. Avenida Três de Março, 511, Alto da Boa Vista, CEP: 18087180, Sorocaba, São Paulo, Brasil. E-mail: roberto.lourenco@unesp.br
3 Professor Assistente Doutor da Faculdade de Ciências Agronômicas - FCA, da UNESP, Campus de Botucatu, lotado no Departamento de Ciência Florestal, Solos e Ambiente. Endereço: Av. Universitária, 3780, Altos do Paraíso, CEP: 18610-034, Botucatu, São Paulo, Brasil. E-mail: gustavo.lessa@unesp.br
4 Livre-Docente e Professora Aposentada Associada da Faculdade de Ciências Agronômicas - FCA, da UNESP, Campus de Botucatu, lotada no Departamento de Ciência Florestal, Solos e Ambiente. Endereço: Av. Universitária, 3780, Altos do Paraíso, CEP: 18610-034, Botucatu, São Paulo, Brasil. E-mail: czimback@gmail.com
RESUMO: O desenvolvimento no meio rural demanda a adoção de técnicas de manejo e uso do solo que visam o desenvolvimento sustentável de práticas agrícolas para atender à crescente demanda por alimentos. Com isso, o objetivo do estudo foi classificar e mapear as terras favoráveis à utilização de máquinas e implementos agrícolas da Bacia Hidrográfica do Rio Pariquera-Açu, por meio de SIG. Foram utilizadas informações de textura, profundidade dos solos, uso da terra e declividade, classificados em graus de impedimento à mecanização agrícola (nulo, ligeiro, moderado e restrito). As Áreas de Preservação Permanente foram geradas, de acordo com o Código Florestal Brasileiro, e O definidas como áreas de restrição à mecanização agrícola, bem como uma unidade de conservação inserida na área de estudo (Parque Estadual de Proteção Integral da Campina do Encantado). A favorabilidade à mecanização foi avaliada com multicritério pelo método da combinação linear ponderada, sendo que 24,11% da área do estudo não possui impedimentos à mecanização e 17,5% possui impedimentos restrito ao manejo mecanizado. As técnicas de geoprocessamento foram eficientes na elaboração do mapa de favorabilidade à mecanização, sendo que a classe ligeira foi predominante quanto ao impedimento à mecanização em relação às demais classes: nula, moderada e restrita.
Palavras-chaves: agricultura sustentável, geoprocessamento, mecanização agrícola.
EVALUATION OF FAVORABILITY TO THE AGRICULTURAL MECHANIZATION OF WATERSHEDS BY GEOGRAPHICAL INFORMATION SYSTEM
ABSTRACT: Development in the rural environment requires the adoption of techniques to achieve sustainable development. Therefore, the aim of the study was to classify and map the lands, favorable to the use of agricultural machines and implements of the Pariquera-Açu River Basin, through GIS. Information of soil texture, soil depth, land use and slope were used, classified in degrees of impediment to agricultural mechanization (null, mild, moderate and restricted). The Permanent Preservation Areas were generated, according to the Brazilian Forest Code, and defined as areas of restriction to agricultural mechanization, as well as a conservation unit inserted in the study area (State Park of Integral Protection of Campina do Encantado). Favorability to mechanization was assessed with multicriteria using the weighted linear combination method, with 24.11% of the study area having no mechanization impediments and 17.5% having impediments restricted to mechanized management. The geoprocessing techniques were efficient to elaborate the map of favorability to mechanization.
Keywords: sustainable agriculture, geoprocessing, agricultural mechanization.
Dissertations / Theses on the topic "Mind map box"
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Borovková, Petra. "Využití myšlenkových map ve vyučování angličtiny." Master's thesis, 2013. http://www.nusl.cz/ntk/nusl-322724.
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The thesis discusses using mind maps in English language teaching. It explains what mind maps are and how to use them effectively. This thesis includes a theoretical as well as a practical part. The theoretical part offers two points of view of the problem - psychological and pedagogical. The psychological part deals with theoretical knowledge of memory and learning. In the pedagogical part, firstly learning styles in connection with mind maps are discussed; secondly some demonstrations of using mind maps in various English textbooks are presented. The practical part focuses mainly on new ideas. First chapter of the practical part shows various classroom or individual mind map activities that concentrate on different language skills. The second chapter is the most important section of the whole thesis as it introduces a new method for learning vocabulary via mind maps. Observations of four students using the method and reflections on it are offered in the following chapters. Finally, the results and conclusions of the observations as well as the advantages and disadvantages of mind maps in general are presented.
Books on the topic "Mind map box"
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Bowen, James. Yi zhi ming jiao bao bo de liu lang mao: A street cat named Bob. Beijing: Zhong hua gong shang lian he chu ban she, 2016.
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Gu gong bo wu yuan (China). Yu mao qing ming: Gu gong zhen cang liang Song ci qi jing pin ji. Edited by Zhao Yang (Art editor) and Museu de Arte de Macau. Aomen: Aomen yi shu bo wu guan, 2012.
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guan, Shanghai bo wu. Hua rong shi mao: Shanghai bo wu guan cang Ming Qing ren wu hua. [Xianggang]: Xianggang da xue mei shu guan, 2001.
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guan, Shanghai bo wu, and Shanghai bo wu guan, eds. Hai fan liu zong: Helan Nihanke juan zeng Ming Qing mao yi ci / Shanghai bo wu guan = Traces of the trade : Chinese export porcelain donated by Henk B. Nieuwenhuys / Shanghai Museum. Shanghai Shi: Shanghai shu hua chu ban she, 2009.
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Hepburn, Allan. Saints and Miracles: The End of the Affair. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198828570.003.0003.
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Miracles rarely appear in novels, yet Graham Greene includes several of them in The End of the Affair. Sarah Miles heals a boy suffering from appendicitis and a man with a disfigured cheek. Like a saint, she seems to heal or revive through her compassionate touch, as when she raises her lover, who may or may not have died in a bomb blast, by touching his hand. This chapter locates Sarah’s interventions amidst debates about miracles, beginning with David Hume’s sceptical rejection of inexplicable phenomena, through such mid-century books as C. S. Lewis’s Miracles and Dorothy Sayers’ The Mind of the Maker. The inherent godlessness of novels, as Georg Lukacs puts the matter in Theory of the Novel, would seem to ban mystical content altogether from novelistic discourse. Yet this chapter argues for the revaluation of mystical content—the ordeals of the whisky priest in The Power and the Glory, for example—within the generic precincts of the novel.
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Elijah on My Mind: A Little Boy Who Loves Me More Than Any Man Ever Could. Wyatt-MacKenzie Publishing, 2006.
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Levin, Frank S. Introduction. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198808275.003.0001.
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By surveying aspects of the book, the Introduction invites readers to prepare their mental surfboards for surfing the challenging waves of the quantum world. Max Planck’s weird use of the quantum concept is identified as the origin of the quantum revolution of the first part of the twentieth century. It is pointed out that mental muscles will be stretched by a variety of mind-bending quantum concepts and phenomena, both microscopic and macroscopic. These include the analogy between the behavior of a particle in a so-called quantum box and the vibrations of a musical string, and the role of quantum mechanics in determining the maximum heights of mountains. It is noted that the fundamental principles of quantum theory are the underpinning for explaining the mystery with two-slit experiments, while the book’s final chapters explore two features that have been referred to in non-scientific contexts: entanglement and Schrödinger’s cat.
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Alden, Maureen. Penelope. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199291069.003.0004.
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Penelope emerges favourably from comparison with Clytemnestra and Helen, the main paradigms of infidelity in the present, and with the Nekyia’s catalogue of past heroines. The vulnerability of these ladies to seduction, corruption, and deception argues for taking Odysseus home, but the Phaeacians detain him abroad like Melampus in his catalogue. Penelope’s weaving was an antidote to the Dionysiac forces which threaten to put a suitor in Odysseus’ place, but when it is completed, she fears that she may kill her son in a maenadic frenzy, like Aedon who was turned into a nightingale. Her state of mind is demonstrated by her grief for the pet geese destroyed by an eagle in a dream told to her disguised husband. Her journey down to the storeroom and return with the covered basket containing the axes for the bow contest mimics the Arrephoria, and marks her transition from seclusion to marriage.
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Leppard, Lois Gladys. Mandie Books Box Set, vols. 6-10 Mandie and the Medicine Man, Mandie and the Charleston Phantom, Mandie and the Abandoned Mine, Mandie and the Hidden Treasure, Mandie and the Mysterious Bells. Bethany House, 1988.
Find full textBook chapters on the topic "Mind map box"
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"PARAMETERS OF MUGABE’S MIND." In Mad Bob Repuplic: Bloodlines, Bile and a Crying Child, 6–7. Mwanaka Media and Publishing, 2018. http://dx.doi.org/10.2307/j.ctvh9vx3q.6.
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Hickey, Wakoh Shannon. "Is Mindfulness Effective?" In Mind Cure, 171–86. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780190864248.003.0007.
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This chapter asks whether mindfulness is as broadly effective and powerful as proponents claim and considers methodological and other critiques of clinical research on mindfulness. Neuroscientists have produced vivid images of meditators’ brains, using functional MRI and PET scans, which seem to show clear, positive changes attributed to meditation. Such images are effective rhetorically but are produced in a “black box” of assumptions, technological constraints, and human factors that make them less definitive than they may appear. Other types of studies rely on meditators’ self-reports, which are not always reliable. A major issue in clinical research is that mindfulness is inconsistently defined and may be measured by scientists unfamiliar with the ways that meditation is described in canonical texts and understood by experienced Buddhist teachers and yogis. While research data do suggest that mindfulness can be beneficial, it is not the panacea that some advocates seem to suggest it is.
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Collins, Wilkie. "Chapter VII the box of letters." In Hide and Seek. Oxford University Press, 2009. http://dx.doi.org/10.1093/owc/9780199555611.003.0023.
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The first thing Mat did when he got to his lodgings, was to fill and light his pipe. He then sat down on his bear-skins, and dragged the box close to him which he had brought from Dibbledean. Although the machinery of Mat’s mind was...
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Wilshire, Howard G., Richard W. Hazlett, and Jane E. Nielson. "Digging to China." In The American West at Risk. Oxford University Press, 2008. http://dx.doi.org/10.1093/oso/9780195142051.003.0009.
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Americans like to buy things and own them—barbecues and refrigerators, computers and iPods, cars and bikes, boats and even private planes. Some folks make their appliances last a long time, but manufacturers rely on most people to buy new ones every five years or so. The few critics of our system sometimes charge that items from appliances and vehicles are designed to break down relatively quickly, to prod consumption along. Walking through a showroom or past shop windows, how many people stop to wonder where all the stuff comes from or what happens there? Here is the short answer: Nearly everything you use every day is based on minerals mined somewhere, often leaving behind disfigured land and a toxic mess. Materials still mined in the western United States include metals, particularly gold, iron, copper, zinc, and molybdenum—plus gypsum, borates, and other salts, and most cement ingredients. Mining is the prow of America’s consumer-propelled ship. Its whole purpose is to dig up resources for transformation to consumer goods. But the resources are nonrenewable, so mining progressively eliminates and eventually exhausts them. The processes of exploring for and exploiting mineral deposits consume vast resources also, especially water and energy. Natural processes spread mine pollution into water, soil, and air, at times killing all life in creeks, streams, and reservoirs. Geographer Lewis Mumford once estimated that “Mining’s effects on the earth are now on the same scale as hugely destructive natural forces.” He guessed the minimum amount of material moved by global mining operations at 28 billion tons in 1963—nearly twice the sediment all the world’s rivers carry annually. Determining just how much land may be affected by mine wastes, and how much farther the damage might spread, is more dif- cult. The massive scale of today’s mining operations dwarfs Mumford’s figure. The dominant U.S. mining law offers wide swaths of U.S. public lands to any and all comers, whether foreign or domestic (box 4.1).
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Vasalou, Sophia. "Introduction." In The Measure of Greatness, 1–20. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198840688.003.0013.
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‘We all love great men … nay can we honestly bow down to anything else?’ So wrote Thomas Carlyle in a well-known set of lectures running under the title On Heroes, Hero-Worship, and the Heroic in History.1 It is as good a place as any to open a conversation about that singular virtue—a virtue of greatness and great men—to which this volume is dedicated. Carlyle himself may not have had the virtue of greatness of soul or magnanimity specifically in mind when he launched his investigation of the hero. But it is a virtue that has often been understood to bear an especially close relation to the heroic, a relation to which it owes some of its strongest tensions but also the deepest roots of its power to fascinate....
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Keller, Morton, and Phyllis Keller. "Derek Curtis Bok and the Worldly University." In Making Harvard Modern. Oxford University Press, 2001. http://dx.doi.org/10.1093/oso/9780195144574.003.0022.
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During the last three decades of the twentieth century, the meritocratic Harvard of Conant and Pusey evolved into the more worldly university of Derek Bok (1971–91) and Neil Rudenstine (1991–2001). This is not to suggest that Harvard sloughed off its intensely meritocratic character, or even its Brahmin antecedents. And of course Harvard faculty at least since World War II had been conspicuously engaged in public affairs. But the prevailing culture shifted. Worldliness—Harvard as a participant in, as much as an observer of, the larger society—became the dominant tone in the late twentieth century. To the social elitism of Brahmin Harvard, and the disciplinary emphasis of meritocratic Harvard, there now was the ever-expanding social engagement of worldly Harvard. After Nathan Pusey announced his intention to leave the presidency in June 1971, Harvard turned to the heady business of deciding who was to be his successor. Students wanted someone young, accessible, sensitive to their educational wants and needs. Faculty members sought an eminent scholar attentive to the life of the (academic) mind. Nor could politics be ignored in this post-1969 age: one professor called for “a man who conveys a sense of sympathy with values from quite far left to somewhat right of center.” Corporation fellow Hugh Calkins later recalled that the search committee “saw Harvard as within a forest of perplexing issues, through which no clear path was visible.” The most troubling problem was an apparent shift in the prevailing view of the university’s purpose. Harvard, he observed, traditionally sought to educate “leaders of high intellectual capacity in scholarly, professional, business and public life.”Now there was a widespread sense that “intellectual capacity is suspect as a confederate of inequality and injustice.” Given these conditions, Calkins and his colleagues were uncertain whether to look for a leader with a clear vision of Harvard’s future or for one without preconceptions.
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Smith, Gary. "Patterns in Randomness." In The AI Delusion. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198824305.003.0007.
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I do an extra-sensory perception (ESP) experiment on the first day of my statistics classes. I show the students an ordinary coin— sometimes borrowed from a student—and flip the coin ten times. After each flip, I think about the outcome intently while the students try to read my mind. They write their guesses down, and I record the actual flips by circling H or T on a piece of paper that has been designed so that the students cannot tell from the location of my pencil which letter I am circling. Anyone who guesses all ten flips correctly wins a one-pound box of chocolates from a local gourmet chocolate store. If you want to try this at home, guess my ten coin flips in the stats class I taught in the spring of 2017. My brain waves may still be out there somewhere. Write your guesses down, and we’ll see how well you do. After ten flips, I ask the students to raise their hands and I begin revealing my flips. If a student misses, the hand goes down, Anyone with a hand up at the end wins the chocolates. I had a winner once, which is to be expected since more than a thousand students have played this game. I don’t believe in ESP, so the box of chocolates is not the point of this experiment. I offer the chocolates in order to persuade students to take the test seriously. My real intent is to demonstrate that most people, even bright college students, have a misperception about what coin flips and other random events look like. This misperception fuels our mistaken belief that data patterns uncovered by computers must be meaningful. Back in the 1930s, the Zenith Radio Corporation broadcast a series of weekly ESP experiments. A “sender” in the radio studio randomly chose a circle or square, analogous to flipping a fair coin, and visualized the shape, hoping that the image would reach listeners hundreds of miles away. After five random draws, listeners were encouraged to mail in their guesses. These experiments did not support the idea of ESP, but they did provide compelling evidence that people underestimate how frequently patterns appear in random data.
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Robinson, Max, Keith Hunter, Michael Pemberton, and Philip Sloan. "Diseases of the teeth and supporting structures." In Soames' & Southam's Oral Pathology. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199697786.003.0010.
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A wide variety of processes can affect the formation of teeth during development. The number, size, shape, and quality of dental hard tissue may be abnormal and teeth may erupt early or be prematurely shed or resorbed. When a child presents with a tooth abnormality, the clinical and radiographic features are often distinctive and management depends on diagnosis (Box 5.1). Broadly, developmental abnormalities of the teeth can be either genetically determined or acquired as a result of injurious processes affecting the developing teeth. It can be problematic to make a diagnosis, particularly when teeth initially erupt. Sometimes pathological examination of a shed or extracted tooth by ground sectioning (for enamel) or conventional sectioning of a decalcified tooth can provide a diagnosis. Research has provided insights into the genetic and structural basis of dental anomalies, and has resulted in a complex and extensive classification of subtypes. Minor abnormalities, such as failure of development of a few teeth or enamel erosion in adult life, may be dealt with in general dental practice, but it is advisable to refer younger patients with more complex or extensive dental abnormalities to a specialist in child dental health, with links to expert diagnostic facilities and input from orthodontic and restorative colleagues. The publically available Online Mendelian Inheritance in Man (OMIM) database provides an invaluable resource for genetic disorders, including dental abnormalities. Supernumerary teeth are common and may be rudimentary in form or of normal morphology, when they are referred to as supplemental teeth. The most common supernumerary tooth occurs in the mid- line of the maxillary alveolus and is referred to as a mesiodens, which usually has a conical shape. Eruption of adjacent normal successor teeth may be impeded by a mesiodens, which is an indication for its removal. Most supernumerary teeth occur as a sporadic event in development, but multiple extra teeth can be found in certain developmental disorders. Failure of development of tooth germs results in teeth missing from the dental arch and is referred to as hypodontia. Most often the missing teeth are third molars, second premolars, and upper lateral incisors. Hypodontia is more common in the permanent dentition than in the primary teeth.
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Farne, Hugo, Edward Norris-Cervetto, and James Warbrick-Smith. "Confusion." In Oxford Cases in Medicine and Surgery. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780198716228.003.0008.
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• Delirium: an acute impairment in cognitive ability together with impaired consciousness. • Dementia: a chronic, progressive impairment in cognitive ability but with intact consciousness. Note that this is different from delirium and that you cannot diagnose dementia from a single mental status assessment. • Mental impairment: a permanent impairment in cognitive ability. • Psychosis: the patient may not be confused, but have a disorder of thought content/perception (e.g. delusions and/or hallucinations). • Receptive dysphasia: the patient may have difficulties comprehending your questions (e.g. due to damage to Wernicke’s area of the brain). • Expressive dysphasia: the patient may be cognitively intact but have difficulties verbalizing an answer to your questions (e.g. due to damage to Broca’s area of the brain). Note that these syndromes may coexist in patients, particularly delirium and dementia which are both very common. Remember to start by checking the patient’s airway, breathing, and circulation (ABC) and whether they are in any pain that requires analgesia. To work out what type of confusion this is, you should start by conducting a quick screen of confusion because if the patient does poorly in your screen, taking a conventional history may prove unhelpful. For example, you may ask: • Are they oriented to time, place, and person? Can they tell you why they are here? The Abbreviated Mental Test Score (AMTS; see Box 2.1) is a simple 10-question screening tool for assessing confusion where a score of less than 6/10 indicates cognitive impairment. An alternative is the 30-question Mini Mental State Exam (MMSE), where a score of less than 26/30 indicates cognitive impairment. Be aware that there are many other scoring systems in routine use, such as the Confusion Assessment Method (CAM), Montreal Cognitive Assessment (MoCA), etc. • If their ability to converse is impaired, can they follow a three-step command? Can they name three common objects? These questions test for receptive and expressive dysphasia respectively. It will be fairly obvious early in your interaction with the patient whether either of these questions is relevant (they do not need to be asked routinely). • Other symptoms? Are they in pain? (even the most confused patient will complain of pain). You should also ask about breathlessness, cough, and urinary symptoms as a chest or urinary tract infection (UTI) is often the cause of confusion.
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Ehrenfeld, David. "Jane Austen and the World of the Community." In Swimming Lessons. Oxford University Press, 2002. http://dx.doi.org/10.1093/oso/9780195148527.003.0041.
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For two weeks now, I have wallowed in sinful luxury, rereading the six completed Jane Austen novels (especially my favorite parts), basking in the warmth and wit of her collected letters, eagerly absorbing the details of her life from her best biographies, and attentively following the arguments of her leading literary critics. I also saw the recent movie versions of Sense and Sensibility and Persuasion, falling in love with Emma Thompson and Amanda Root in quick succession, and finished off my orgy with viewings of the BBC videos of Sense and Sensibility, Emma, Mansfield Park, Northanger Abbey, and Pride and Prejudice. Throughout—at least when I could remember to pay attention—I had two questions in mind. What does Jane Austen have to say about people, communities, and nature? And what is the cause of her resurgent popularity? Perhaps, I allowed myself to think, the questions are related. Answering the questions proved not so simple, but I did have fun trying. Sam and I read Aunt Jane’s letter, dated 8 Jan. 1817, to her nine-year-old niece Cassy, beginning: . . . Ym raed Yssac I hsiw uoy a yppah wen raey. Ruoy xis snisuoc emac ereh yadretsey, dna dah hcae a eceip fo ekac . . . . . . I read the amusingly mordant comments she could write about her neighbors, such as the one in her letter of 3July 1813 to her brother Francis, mentioning the “respectable, worthy, clever, agreable Mr Tho. Leigh, who has just closed a good life at the age of 79, & must have died the possesser of one of the finest Estates in England & of more worthless Nephews and Neices [sic] than any other private Man in the United Kingdoms.” I read the last chapters of Pride and Prejudice, Emma, and Persuasion each three times. I read once again about Catherine Morland’s cruel expulsion from Northanger Abbey, and about the ill-omened trip of Fanny Price, the Bertram sisters, and the Crawfords to the Rushworth estate, Sotherton, with its seductive, if too regularly planted, wilderness. And again I was privileged to accompany Emma Woodhouse, Miss Bates, Frank Churchill, and Mr. Knightly on the tension-charged picnic to Box Hill, surely one of the highest peaks in English literature.
Conference papers on the topic "Mind map box"
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Đorđević, V., P. Bogdanić, R. Šimrak, J. Baće, and M. Braš. "Komunikacijom protiv boli – grafička mapa BOL." In Depression in the Century of Mind, 4th Croatian Congress in Prevention and Rehabilitation in Psychiatry. Gyrus Journal, 2015. http://dx.doi.org/10.17486/gyr.3.2081.
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Chen, Hsiuhung, Zhiquan Shu, and Dayong Gao. "Development of a Controlled Rate Cooling System for Cryopreservation." In ASME 2008 3rd Frontiers in Biomedical Devices Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/biomed2008-38062.
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Cooling rate is one of the most critical factors affecting the survival of cells during cryopreservation. A novel box-in-box device has been developed for use in the cryopreservation of human hematopoietic stem cells (HSCs). This work presents the comparison of experimentally observed thermal profiles for two different setups and, in the near future, cryopreservation survival rates of live cells accordingly. In experiments, using a simple protocol with a −80°C freezer, the box-in-box device is used to: (1) achieve an average cooling rate of −1°C/min with polyethylene insulation layers on both sides, and (2) achieve an average cooling rate of −2°C/min with a polyethylene insulation layer on one side and by having the other side directly contacted to the outermost aluminum case, both from room temperature to −40°C. The concept that utilizes thermal inertia of materials may be readily adapted to other cooling rates to support cryopreservation of a wide array of tissues and cells. It is concluded that the box-in-box system can be developed into a cost-effective, durable and reliable device for the cryopreservation of HCSs.
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Zhou, Xue, Yoichi Mizukami, Takero Yoshida, and Daisuke Kitazawa. "Motion Analysis of Flexible Hose Based on Water Tank Experiment." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77597.
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Set net fishery faces the problems of decrease in harvest, with lack of labor and aging of fishermen. These problems make it necessary to develop a new automatic harvesting way of set net fishery. An automatic net-hauling system is one of the promising ways, while the system using rubber tubes and polyethylene pipes are not prevailing because of the high maintenance cost and the difficulty in the operation. In the present study, the flexible hose net is proposed to harvest fish in the box chamber net of set net fishery. The flexible hose net is installed on the water bottom below the box chamber net. Compressed air is injected from one edge of the hose net to haul the box chamber net gradually, resulting in cornering fish in the other edge. In the preset study, the feasibility of the net-hauling system for set net fishery was examined by water tank experiment. The variation in the formation of the hose net and the time for sinking and floating were examined, changing the parameters such as air pressure and buoyancy balance. As a result, the hose net sank automatically if the weight attached to the hose net was 39% of the total buoyancy of the hose net with full of air. The time spent for sinking operation was about 160 s, which corresponds to about 10 min for actual hose net according to the similarity law. However, it should be noted that the similarity of water pressure could not be reproduced in the water tank experiment. To reduce the sinking time, the initial inner pressure of the hose net must be the atmospheric pressure before the beginning of the sinking operation. There is an inflection point between the flexible hoses with and without air. It is worried that air flow in the flexible hoses may be impeded. So the inside structure of the flexible hoses may have to be improved to secure the air flow in any condition. In relation to the difficulty in reproducing the water pressure condition in the water tank, the numerical analysis will be required to reproduce the motion of the hose net and its sinking time both for scaled and full-scale models. In the future, three-dimensional coupled model of fluid, structure, and air flow will be developed and validated by the experimental data, beginning with the simple two-dimensional modeling of the motion of the hose net.
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Ji, Hao, and Yan Jin. "Designing Self-Organizing Systems With Deep Multi-Agent Reinforcement Learning." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-98268.
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Abstract Self-organizing systems (SOS) are able to perform complex tasks in unforeseen situations with adaptability. Previous work has introduced field-based approaches and rule-based social structuring for individual agents to not only comprehend the task situations but also take advantage of the social rule-based agent relations in order to accomplish their overall tasks without a centralized controller. Although the task fields and social rules can be predefined for relatively simple task situations, when the task complexity increases and task environment changes, having a priori knowledge about these fields and the rules may not be feasible. In this paper, we propose a multi-agent reinforcement learning based model as a design approach to solving the rule generation problem with complex SOS tasks. A deep multi-agent reinforcement learning algorithm was devised as a mechanism to train SOS agents for acquisition of the task field and social rule knowledge, and the scalability property of this learning approach was investigated with respect to the changing team sizes and environmental noises. Through a set of simulation studies on a box-pushing problem, the results have shown that the SOS design based on deep multi-agent reinforcement learning can be generalizable with different individual settings when the training starts with larger number of agents, but if a SOS is trained with smaller team sizes, the learned neural network does not scale up to larger teams. Design of SOS with a deep reinforcement learning model should keep this in mind and training should be carried out with larger team sizes.
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Jacinto, Carlos Magno Couto. "Risk Analysis of the Construction Process of Cascade 5 Well." In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-84010.
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This paper presents the HAZID/HAZOP [1,2,3,4] applied in risk analysis for the Cascade 5 well and this methodology main results, including possible failure or deviation events during the well construction, their causes and detection resources, consequences, criticality, and recommendations for mitigating safety risks. The HAZID/HAZOP is a systematic method to analyze step by step each well operation, mapping possible deviation processes and proposing recommendations either to prevent causes or mitigate consequences. The probabilities of some final events in the phases Liner 10”, Logging 12.25” and contingencies, were out of the ALARP (as low as reasonably practicable) [1] levels of risk tolerance, and it was recommended the improvement of the safeguards in these phases using BOP tests program designed. The greater number of subsea control system failures compared to those that occurred on surface testing is believed to be primarily due to system complexity and hydrostatic issues that come into play in deeper water. It is important to keep in mind that control system failures are discovered during function tests. In fact, a very large percentage of all failures could have been identified with only a simple function test. It is important to distinguish between those failures that are found from pressure and those found from function testing. In this study it was calculated the interval of tests of the security system (BOP) for the period of 100 days of mission, in order to get an average unavailability within the ALARP level (10e−8, 10e−4). Following this approach it may be possible to avoid kicks and blowouts, saving costs and time in the well construction process.
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Di, Qianqian, Junhong Yang, Mingdi Sun, and Liqiu Wang. "Fractal Characterization of Astragalus Slices Under Various Microwave Assisted Extraction Conditions." In ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer. ASMEDC, 2009. http://dx.doi.org/10.1115/mnhmt2009-18284.
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Microwave has been widely used in the extraction of many samples for its unique heating mechanism, short extraction time and high yield of extract. The microstructure characteristics of plant materials are closely related with macro-property and mechanism on mass transfer within matrix. Fractal geometry, with the ability to describe irregular objects provides a new language. Astragalus slice is a special and typical plant porous media. We characterize the microstructure of Astragalus slices irradiated by microwave at 600 and 900 W by using fractal dimension, with the aim to analyze the effect of the microwave power on the extraction yield and discuss further the relationship between the fractal dimensions and microstructure changes of sample during microwave assisted extraction process. It is found that the fractal scaling law of box counting method is not suitable for the apertures on the wall of trachea inside matrix, and Slit Island and mercury injection method may be used. Fractal dimensions of samples at microwave 600 W are smaller than that at 900 W. The smaller fractal dimension is in favor of effective components dissolution inside the slices, which led to extract with the 20 min irradiation of microwave at 600 W is higher than that at 900 W.
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Rapo, Mark A., Tim Baumer, Philemon C. Chan, and James F. MacKiewicz. "Reducing the Effects of Blast to the Head Through Load Partitioning." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-63257.
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Warfighters who survive encounters with improvised explosive devices (IEDs) may incur mild traumatic brain injury (mTBI) due to blast overpressure effects. Since existing head injury criteria are mostly based on head kinematics, head acceleration is one key metric to be measured. A blast wave travels at supersonic speed with a very sharp peak overpressure rise followed by a rapid decay within a short duration. For the surface area that is covered by the helmet, the cushion/suspension subsystem is responsible for mitigating the blast effects on the head, while the exposed area of the head or face would receive a direct blast loading. Computational fluid dynamic (CFD) simulations of a blast on an upright warfighter show a significant reduction in peak force to the head when a helmet is worn. For a helmet with an attached eye-shield, the load to the head from a front blast can be reduced further. A field study was conducted to verify that the increased load partitioned away from face and to the helmet and cushioning system would result in decreased head acceleration. Blast field tests were conducted using 4 lbs. of cylindrical C4 charges at 92″ standoff. Head acceleration was measured using combinations of a free hanging mid-size standard ISO headform fitted with Team Wendy (TW) pads, an advanced combat helmet (ACH), and an eye-shield. Tests were performed with the blast hitting the front, side and back of the helmeted headform system. Headform accelerations ranging from 120–465g were recorded based on blast direction and the amount of head protection. To validate the three-dimensional Navier-Stokes’ based CFD simulations, a custom-designed blast overpressure bust (BOB) containing 22 surface pressure sensors was mounted on top of the BTD to measure the pressure distribution over the head and face when exposed to a blast. The incident overpressure of the blast was 0.25MPa, with reflected pressures reaching 1.0MPa.
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Emami Azadi, M. Reza. "The Influence of Different Scenarios of Supply Ship Collision on the Dynamic Response of a North-Sea Jacket-Pile-Soil System." In ASME 2007 26th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2007. http://dx.doi.org/10.1115/omae2007-29039.
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In the present study, the influence of various scenarios of supply ship collisions, namely, bow, stern and also broad-side impacts on a jacket-pile-soil system is investigated. In the previous study of ship impact on an 8-leg North-Sea Jacket Platform by Amdahl et al. [2] and also other authors, the effect of jacket-pile-soil interaction was not considered. The collision points on the jacket structure are also taken as joints and mid-span of leg, horizontal and vertical braces, namely, hard and soft impact points. The speed and the weight of the colliding vessel are also varied for typical supply vessels. Several supply ship collision analyses are carried out for bow, stern and broad-side impact scenarios on an 8-leg North-sea Jacket platform It is observed that by taking into account the jacket-pile-soil interaction effects, in particular in softer clay soils the amplitude of displacement response after supply ship impact at the deck level is increased due to yield in the upper soil layers. Contrary to this finding, less linear dynamic effects can be seen in the studied jacket-pile-soil system subjected to the supply ship impact. It can also be concluded that for soft impact scenario, the dynamic effects in the global response of the platform located in the mainly OC clayey soil may be much less than those for hard impact scenario on the same platform. For instance, for a brace impact at its mid-span, a less significant dynamic effect has been observed than for a leg impact. The duration of impact in such cases is shown to play an important role in determining the dynamic influence of the platform response. The relative energy absorption of the platform is shown to be more for broad-side loading. It is shown that the global response of the jacket platform during the collision with a supply vessel might depend largely on the scenario of the impact and to some extent on the pile-soil behavior. It is found that for the bow and stern impact scenarios, the energy contribution of the local member dent or buckling might be more significant than for the broad-side loading for which the global frame energy contribution and the overall inertia effect of the platform might be a dominant factor.
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De´cossin, Etienne, and O̸ystein Bremnes. "Axial Offset Anomaly Modeling Studies on EDF Cores." In 16th International Conference on Nuclear Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/icone16-48286.
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The Axial Offset Anomaly phenomenon, commonly called AOA, is one of the possible consequences of the undesirable presence of deposits on the nuclear fuel. AOA appears in PWR cores as abnormal distribution of the power, as compared to the design reference values. If the amplitude of the phenomenon becomes significant, it may lead to additional constraints in operating the reactor. Several factors contribute to the root cause of AOA. The state-of-the art knowledge relies on the fact that deviation should appear when the conditions of temperature, boron and corrosion product concentrations are appropriate to form crud on the fuel surface, that is thick enough to allow precipitation of lithium borates. Then, the neutron capture is locally enhanced by the additional presence of boron, leading to local flux depression and redistribution of the power all over the core. The experience feedback on AOA is rather consequent, mainly in the United States. On the EDF nuclear fleet, excepted two notable cases in the mid 90’s, the phenomenon remained limited to a few, low amplitude observations on the 1300 MW type cores. To perform AOA studies, EDF has developed its own numerical tool based on: • the neutron kinetics COCCINELLE code for power distribution computations, • the thermal-hydraulics THYC code, • the dedicated BOA code to evaluate, at the core scale, crud deposition and boron loading. The EDF software COCCINELLE and THYC are commonly used for core design and safety analysis. For AOA studies, they provide a 3D, best-estimate representation of the clean core. Then the thermal-hydraulic data are used by the BOA code as boundary conditions to determine, in both single-phase flow and sub-cooled nucleate boiling, how and where deposits form on the fuel surface. In the standard approach, the total mass of trapped boron is compared to a threshold defining the AOA risk limit. In a prospective approach, an advanced COCCINELLE, THYC and BOA coupling is proposed to account for the power distribution changes all along the cycle, instead of using the clean core data. Numerical simulations of an AOA cycle of a 900 MW core show that this feedback effect has a visible effect on the final axial-offset prediction.
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Sønåsen, Knut Olav, Per Thomas Moe, Morten Hansen, Dag André Fjeldstad, Halvor Gustad, Alireza Sadeghi, Alexander Hilley, and Arve Bjørset. "Significant Reduction of Well System Fatigue by Use of Reactive Flex Joint with Integrated Monitoring System." In Offshore Technology Conference. OTC, 2021. http://dx.doi.org/10.4043/31265-ms.
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Abstract Operators working on shallow and mid-water depths in rough seas are focusing on reducing fatigue in the upper part of well systems during drilling operations. Fatigue is caused by cyclic bending moments due to wave induced riser and vessel motions. The combined use of a Reactive Flex-Joint (RFJ) and the Well Access Management System (WAMS) has demonstrated significantly reduced fatigue exposure through a reduction in loads, reporting of real-time status and rig positioning advice. The RFJ is a mechanism mounted on a standard flex joint for easy installation on drilling rigs. It uses a nitrogen gas spring to reverse the flex joint bending moment. The generated opposing moment increases with an increasing angle of the lower flex joint. This significantly reduces the cyclic bending moments in the lower part of the Blow Out Preventer (BOP) and wellhead (WH) system. WAMS is an advanced monitoring system that may be operated as a fully integrated part of the RFJ design. Sensors provide real-time data for flex joint angle, BOP inclination, wellhead- and riser bending moments. The data is used to assess incurring fatigue damage in real-time and for reporting fatigue status after operations. Two RFJ systems have been in continuous use on two separate rigs during 2020. The RFJ system and WAMS are field-proven and have demonstrated their efficiency in challenging operations in the Barents Sea and the North Sea. The RFJ has been well received in the market due to one-time installation, safe use, significant reduction in wellhead loads, and low operating expenses (OPEX). Data obtained from the operations have been carefully analyzed and show that the RFJ reduces cyclic loads from 50 to 80% resulting in 30 to as much as 1000 times extended fatigue life of the wellhead. The RFJ efficiency depends on the settings of the system and operational conditions.