Academic literature on the topic 'Squashes in art'
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Journal articles on the topic "Squashes in art"
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Mašková, Zuzana, Dana Tančinová, and Miriam Ballová. "Alternaria SPP. in food commodities of Slovak origin: occurrence and mycotoxin production abilities." Potravinarstvo Slovak Journal of Food Sciences 13, no. 1 (June 28, 2019): 524–31. http://dx.doi.org/10.5219/1102.
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Various food commodities of Slovak origin were analysed for the occurrence of Alternaria species-groups. Totally we analysed 14 samples of grapes, 3 samples of barley, 2 samples of wheat, 17 samples of fruit, vegetable and fruit-vegetable juices, 6 samples of red kuri squash with macroscopically visible infection. Mycological analyses were performed by using plate dilution method, method of direct placing of berries or grains on the plates with dichloran, rose bengal and chloramphenicol agar or by direct inoculation by mycological needle to the identification medium (potato-carrot agar). In all grape, barley, wheat and squash samples the presence of representatives of this genus was detected (100% isolation frequency). In juices, 41% of the samples were positive for their occurrence. The highest relative density of Alternaria isolates was found in grape samples (87%). All detected strains were segregated into four morphological species-groups: A. alternata, A. arborescens, A. infectoria and A. tenuissima. The most dominant species-group in grapes was A. arborescens, in barley and wheat A. tenuissima, followed by A. alternata, in juices only A. alternata and A. arborescens species-groups were detected and isolates of squashes were not classified to the species-groups. Randomly selected 67 isolates were analysed for the ability to produce mycotoxins alternariol (AOH), alternariol monomethylether (AME) and altenuene (ALT) by means of thin-layer chromatography. Of all tested isolates, AOH production was most frequently reported (70% of tested isolates). AME was produced by 60% and ALT by 49% of tested isolates. The largest share of the productive strains originated from the squashes, where all tested isolates produced ALT and AOH, followed by isolates of juices. From the viewpoint of individual species-groups, A. arborescens isolates and Alternaria spp. appeared to be the most productive in all mycotoxins tested.
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Edelson, J. V., M. Peters, J. Duthie, and W. Roberts. "Control of Squash Bug on Summer Squash, 1997." Arthropod Management Tests 23, no. 1 (January 1, 1998): 140. http://dx.doi.org/10.1093/amt/23.1.140.
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Edelson, J. V., and M. Peters. "Control of Squash Bug on Summer Squash, 1996." Arthropod Management Tests 22, no. 1 (January 1, 1997): 166. http://dx.doi.org/10.1093/amt/22.1.166.
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Boucher, J., R. Adams, G. Nixon, and J. Clark. "Evaluation of Insecticides for Squash Vine Borer Control on Summer Squash, 1993." Arthropod Management Tests 20, no. 1 (January 1, 1995): 131–32. http://dx.doi.org/10.1093/amt/20.1.131a.
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Boucher, J., and G. Nixon. "Evaluation of Alternative Insecticides for Squash Vine Borer Control on Summer Squash, 1995." Arthropod Management Tests 21, no. 1 (January 1, 1996): 175. http://dx.doi.org/10.1093/amt/21.1.175.
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Boucher, J., R. Adams, and G. Nixon. "Squash Vine Borer Control, 1992." Arthropod Management Tests 19, no. 1 (January 1, 1994): 143. http://dx.doi.org/10.1093/amt/19.1.143a.
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Boucher, J., R. Adams, and G. Nixon. "Pumpkins: SQUASH VINE BORER CONTROL, 1992:." Arthropod Management Tests 19, no. 1 (January 1, 1994): 142. http://dx.doi.org/10.1093/amt/19.1.142.
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Boucher, J., and G. Nixon. "Evaluation of Mechanical Control and Alternative Insecticides for Managing Squash Vine Borer on Summer Squash, 1996." Arthropod Management Tests 22, no. 1 (January 1, 1997): 167. http://dx.doi.org/10.1093/amt/22.1.167.
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Abstract ‘Multipik’ summer squash were direct seeded 28 Jun, in Storrs, Connecticut. Weed control consisted of the stale-seedbed technique, using paraquat as a preplant application, supplemented by hand and mechanical cultivation. Plots consisted of 12 plants in a single 24-ft long row, with 2-ft spacing between plants and 4 ft between rows. Four treatments were replicated four times in a RCBD. Two treatments involved application of Neemix or Ambush at weekly intervals on 12, 19, and 26 Jul and 2 Aug. The third treatment involved washing the entire plant stem above the soil surface with an ordinary face-cloth and a 0.5% solution of dish detergent (Sunlight, Lever Brother’s Co., NY, NY) on the above dates. The fourth was the unsprayed check. Insecticide applications were directed at the foliage and stems by spraying plots from the top and sides with a CO2 backpack sprayer at 50 psi with 40 gallons of water per acre. Fruit from five plants per plot were harvested, counted and weighed on 9, 12, 16 and 19 Aug. Five plants from each plot were dissected on 19 Aug and SVB larvae were counted. Data were analyzed using ANOVA (larval infestations) or GLM (yields) and Fisher’s LSD.
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Edelson, J. V., and M. Peters. "Control of Squash Bug on Watermelon, 1996." Arthropod Management Tests 22, no. 1 (January 1, 1997): 192. http://dx.doi.org/10.1093/amt/22.1.192.
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Abstract Watermelon, ‘Sangria’, was direct seeded in May ‘96 at the Lane AREC, Lane. OK. The experimental design was a RCB with 4 replicates and 15 treatments. Plots were one bed wide, 9 ft, by 50 ft long with 10 ft alleys between plots Foliar insecticide treatments were applied with a tractor mounted sprayer that broadcast a 72 inch spray swath over the plots using 4 nozzles (TXVS261 delivering 41 gal/acre at 42 psi. Furadan and Admire were applied with a tractor mounted sprayer at planting. Plots were treated on 15 and 22 Aug. Squash bug populations were surveyed on 26 Aug by counting total number of bugs (adults and nymphs) in 0.5 sq yd area in each plot.
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Seal, D. R. "Control of Sweetpotato Whitefly in Squash, 1992." Arthropod Management Tests 19, no. 1 (January 1, 1994): 144. http://dx.doi.org/10.1093/amt/19.1.144.
Full textDissertations / Theses on the topic "Squashes in art"
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Campbell, Heather Diane, and n/a. "MOTIVES OF MATURE-AGE INDIVIDUALS FOR PARTICIPATING IN COMPETITIVE SPORTS: A CASE STUDY FOR MASTERS SQUASH." University of Canberra. Sports Studies, 2009. http://erl.canberra.edu.au./public/adt-AUC20091222.155411.
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The purpose of this study was threefold. Primarily it was to identify the underlying motivational influences determining why mature age men and women continue playing sport competitively, long after they have reached their peak performance level. Secondly, the study sought to ascertain whether there was a change in specific temperament attributes, such as competitiveness, as Squash players became older, and whether any changes were restricted primarily to the sporting environment, or did changes pervade other areas ofthe individuals' lives. The third purpose of the study was to design a new measurement instrument for use in effectively identifying the primary motivations of mature age squash participants within Australia.
The research study comprised a multi-system methodology which allowed for triangulation analysis of results. It involved both quantitative and qualitative methodological approaches, with four phases of investigation. The first phase focused on the development of a new motivation measurement instrument, titled Masters Sport Motivation Inventory (MSMI). The second phase involved a Pilot study aimed at implementing the MSMI instrument and evaluating it for validity and reliability, and sampled mature-age participants from nine different sports. The outcomes ofthe Pilot study demonstratedvalidityandreliability ofthe MSMI instrument. The third phase ofthe research comprised the main area ofinvestigation, which was to examine the motivations of Masters squash players in Australia. It used the MSMI instrument to obtain relevant data concerning the motivation of this cohort of sports competitors.The fourth phase comprised in-depth personal interviews from Australian Masters squash players. Interviewees had the opportunity to provide a greater insight into the importance of continued sporting participation into their older adult years. The MSMI data for both the Pilot and Main studies was analysed with the SPSS 15 analysis program. It was determined that there were 12 logical and interpretable motivational factors that were relevant to mature-age sports people and Australian Masters squash players. The results of the quantitative approach generally concurred with the outcomes derived from previous research which has examined the motivations of mature-age athletes, which found that health, enjoyment, fitness and competitiveness were highly relevant motives. In addition, this study extended the
outcomes to include other motives viewed as being important to older athletes' sporting aspirations, such as self-awareness, team, aesthetics, skill, stress, recognition, social, and travel,
The interview information was examined in two ways. Firstly, it was examined manually by the researcher. The material obtained during the interview process was classified according to groups of responses with similarities in contextual meaning, and the descriptive response data were calculated in the form ofmanual frequencies and percentages. Winning was the primary motive/outcome. Interview responses were also examined via an analysis program called Leximancer, and results revealed that differences in responses among mature-age squash players based on gender, age-class and ability level were minimal. Interview results indicated that many Masters squash players in Australia were still highly competitive, still very determined to win their matches, and still very focused on their goals and game plans.
The motives derived from the Masters squash players involved in the qualitative approach generally concurred with the outcomes derived from the quantitative approach, thereby adding consistency and outcome strength to the overall research. The opportunity for mature-age squash participants to elaborate on their feelings, sporting goals and motivations to continue playing their chosen sport enabled a greater depth and wealth ofrelevant information to be examined, and revealed a change in motivational emphasis from health and fitness issues to competitive and win-related issues. The results ofthis research as a whole, in relation to the outcomes obtained from the MSMI instrument, as well as from the personal interviews, differs somewhat from the philosophy of Masters sport, whereby it is assumed and promoted that older athletes primarily participate for fun, enjoyment and social opportunities. The results obtained in this research do not necessarily support this view. Many Australian Masters squash players play to win, and they give their all in an effort to achieve this goal and to reap the pleasure of recognition and rewards for doing so.
Books on the topic "Squashes in art"
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Rodolfo, Signorini, ed. La zucca nella natura morta dal Cinquecento al Novecento: Atti del II convegno sulla zucca, Rocca di Reggiolo, 14 settembre 2003. Mantova: Sometti, 2004.
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Hansen, Nat. Just What Is It That Makes Travis’s Examples So Different, So Appealing? Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198783916.003.0006.
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Odd and memorable examples are a distinctive feature of Charles Travis’s work: cases involving squash balls, soot-covered kettles, walls that emit poison gas, faces turning puce, and ties made of freshly cooked linguine all figure in his arguments. One of Travis’s examples, involving a pair of situations in which the leaves of a Japanese maple tree are painted green, has spawned its own literature consisting of attempts to explain the meaning of color adjectives. For Travis, these examples play a central role in his arguments for occasion-sensitivity. But how, exactly, do these examples work? This chapter draws on recent experimental investigations of some of Travis’s examples to question an assumption at the heart of his own view of them—namely, that they are illustrations of a single, unified phenomenon.
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Graff, Gregory D., Gal Hochman, and David Zilberman. The Political Economy of Regulation of Biotechnology in Agriculture. Edited by Ronald J. Herring. Oxford University Press, 2014. http://dx.doi.org/10.1093/oxfordhb/9780195397772.013.023.
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In Europe and in many developing countries, genetically modified (GM) crops are effectively banned. Some countries limit the direct use of such crops as food for human consumption to a few niche agricultural products, such as papaya, sweet corn, and squash. These restrictions can be traced to public decision-making processes reflecting the interplay of sometimes conflicting economic interests of different groups within society. This chapter examines the political economy underlying the regulation of biotechnology in agriculture. It begins with a review of the literature on the politics and political economy of agricultural biotechnology policies, followed by a discussion of how political choices regarding GM crops have evolved over time. It then considers the agricultural economics literature regarding the distributional impacts of the adoption of GM crops, focusing on the impact of the introduction of GM crop varieties on the economic welfare of different groups in society. It also assesses the formation and evolution of agricultural biotechnology policies in Europe and their effects on salient interest groups such as consumers, farmers, environmental interest groups, and industrial sectors.
Book chapters on the topic "Squashes in art"
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Peetz, David. "Are Collective Identity and Action Being Squashed by Individualism?" In Work and Identity, 147–69. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73936-6_11.
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Hackett, Abigail, Kate Pahl, and Steve Pool. "OPEN ACCESS In amongst the glitter and the squashed blueberries: crafting a collaborative lens for children's literacy pedagogy in a community setting." In The Art and Craft of Literacy Pedagogy, 58–73. Routledge, 2020. http://dx.doi.org/10.4324/9780429424205-5.
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Dallmayr, Fred. "Concluding Comments." In Post-Liberalism, 185–94. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780190949907.003.0012.
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The chapter links together and provides a brief overview of all the main topics covered in the preceding chapters, showing that they are animated by an overarching concern: the relationality between unity and diversity, concord and discord. The roots of this relationality can be found in a certain open-ended understanding of humanity. The book posits that self-serving individualism threatens Western democracy, with the equality of citizens at large squashed by the egocentric liberty of a few. Ethical teachings, especially virtue ethics, dovetail with the philosophies of natural rightness and social justice, all underpinning a newer conception of freedom and understanding of what it means to be human. The study closes with reflections on the task of “learning to be human.”
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D'Agostino, Susan. "Pay attention to details, as Earth is an oblate spheroid." In How to Free Your Inner Mathematician, 113–16. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198843597.003.0020.
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“Pay attention to details, as Earth is an oblate spheroid” explains that, due to gravitational and rotational forces, all planets in the solar system could more accurately be described as oblate spheroids—squashed spheres—rather than spheres. For example, the difference between Earth’s polar and equatorial diameters is small—approximately 26 miles—but present. Saturn’s moons, which have been described as tiny ravioli, are also not spherical. Many cosmologists believe not in an infinite universe but a doughnut-shaped universe. The discussion is illustrated with numerous hand-drawn sketches. In this chapter, mathematics students and enthusiasts learn some of the “why” behind these facts, in addition to fostering an appreciation for paying attention to the smallest details in mathematics and life. At the chapter’s end, readers may check their understanding by working on a problem. A solution is provided.
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Restall, Matthew, and Amara Solari. "5. A day in the life." In The Maya: A Very Short Introduction, 57–67. Oxford University Press, 2020. http://dx.doi.org/10.1093/actrade/9780190645021.003.0005.
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Impressive architectural hallmarks and historians’ focus on the elite created a distorted view of the Maya as peaceful, stargazing priest-kings. “A day in the life” looks at nonelite Maya, who grew up in groups and endured a challenging farming environment. Their ecological success stemmed from balancing innovation with restraint and respect. The central dietary staple of maize, sacred to the Maya, was supplemented by beans, squash, chili peppers, root crops, and fruits. Maya cities were more like modern cities than previously thought, with opportunities for elite and nonelite Mayas alike to observe the art, architecture, and cultural contributions of their ancestors every day in the city centers.
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Rajasree, V., and L. Pugalendhi. "Breeding Vegetables for Nutritional Security." In Veganism - a Fashion Trend or Food as a Medicine. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95349.
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The most dominant vegetables in the global food economy are tomato, cucurbits, (pumpkin, squash, cucumber and gherkin), allium (onion, shallot, garlic) and chili. These vegetables are consumed in nearly all countries although with much variation in shape, size, color and taste, while the marketing of global vegetables accounts for significant revenue streams, traditional vegetables often have superior nutritional properties. Biodiversity is considered essential for food security and nutrition and can contribute to the achievement through improved dietary choices and positive health impacts Through conventional breeding approach, it is possible to develop new vegetable varieties or integrate the favorable genes for neutraceuticals, bioactive compounds and edible color into cultivated varieties. Advances in molecular biology and recombinant technology have paved the way for enhancing the pace of special trait variety development using marker assisted breeding and designing new vegetable crop plants following transgenic approach.
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Zabala-Sandoval, Juan D., Andrés Gómez-León, Jaime H. Sierra-González, and Iván D. Hernández-Umaña. "Making Sense of Changes in Sports Practices Brought About by the Pandemic." In Impacts and Implications for the Sports Industry in the Post-COVID-19 Era, 180–98. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-6780-7.ch012.
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This chapter explores different impacts that the pandemic has had on athletes from bodybuilding, aikido, and squash practices in Colombia. It seeks to analyze the effects produced by the COVID-19 crisis and the response actions, seeking a structure that allows for the understanding of changes in sports practices as individual adaptation to the new conditions caused by the pandemic. For this purpose, semi-structured interviews were conducted to establish a baseline of sports habits and to investigate the effects on motivations, routines, times, spaces, and perspectives of the athletes. After describing the methodology, the main findings are presented. The diversity of the responses was used to construct categories of analysis which, as an added value, allow for the grouping of heterogeneous positions, which were then divided into (1) adjustments, (2) adaptability, and (3) the negotiation of meaning. Finally, conclusions are presented.
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Conway, G. "Practical innovation: Partnerships between Scientists and Farmers." In Feeding a World Population of More Than Eight Billion People. Oxford University Press, 1998. http://dx.doi.org/10.1093/oso/9780195113129.003.0027.
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Farmers have been experimenters since the beginning of agriculture. Hunters and gatherers had long since learned to use fire as a means of stimulating the growth of tubers and other food plants, and of grass to attract game. Plant selection began when people found they could encourage favored fruiting trees by clearing their competitive neighbors, but the first steps toward intensive plant breeding were taken when an individual, probably a woman rather than a man, deliberately sowed a seed from a high-yielding plant somewhere near the dwelling and observed it grow to maturity. In Europe and Asia, wheat and rice naturally attracted experimental attention. Because they are predominantly self-pollinating, selection produces rapid improvements and the rare crosses provide new material, often with exciting potential. The first bread wheat, a natural cross between emmer wheat and a wild goat grass, was noticed by farmers as early as 8,000 years ago; it was the kind of exotic cross that modern genetic engineers strive for and that is announced in the press, today, as a miracle variety. Farmers continued to domesticate new species, but most attention was devoted to the local selection and adaptation of the existing relatively small number of cereals and livestock. Experimentation also resulted in new whole systems of agriculture— swidden, rice terracing, home gardens, irrigated agriculture, the Mediterranean Trio of wheat, olives, and vines, the Latin American multiple cropping of maize, beans, and squashes, and, in many parts of the world, various forms of integrated crop-livestock agriculture. As is evident from their writings, the Romans analyzed the structure and functions of agricultural systems in a scientific manner. They also described the process of experimentation. Marcus Terentius Varro, who wrote a treatise on agriculture in the 1st century BC, urged farmers to both “imitate others and attempt by experiment to do some things in a different way. Following not chance but some system: as, for instance, if we plough a second time, more or less deeply than others, to see what effect this will have” (Hooper and Ash, 1935). The great agricultural revolution of Britain in the late 18th century was led by farmers.
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Ehrenfeld, David. "Spending Our Capital." In Swimming Lessons. Oxford University Press, 2002. http://dx.doi.org/10.1093/oso/9780195148527.003.0022.
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A deeply felt aversion to spending accumulated capital is an ancient part of the heritage of most societies. Although my father was a doctor, not a businessman, he taught this to me. He had lived through the bankruptcy of his own parents during the Great Depression, watching as they gradually sacrificed the inventory of their store in Passaic to keep the family in food and clothing. On one side of this store, my grandfather sold records, phonographs, and sewing machines and repaired the appliances that he sold; on the other side, my grandmother, a brilliant dress de-signer, prepared bridal gowns for customers who came from as far away as New York City. She would dress the brides on the wedding day, too, and was celebrated for her ability to make the plainest bride look beautiful. But as the depression wore on, business fell off, the customers stopped coming from New York, and the stock of goods dwindled away. There was no choice but to close the store; my grandparents’ livelihood was gone forever. Later, my father and the oldest of his four brothers made it a priority to pay their parents’ creditors in full, a decision that entailed sacrifices in itself. The lesson was handed down to me: you can spend your earned income and any interest you may have received, providing you first set aside a portion to increase your savings; but never spend the principal, your capital, except as an act of final desperation. To most of us, capital is associated with business, yet the habit of pre-serving capital and handing it on to the next generation started, I am pretty sure, not as an economic or financial practice, but as an agricultural one. In Neolithic societies, it must have begun when farming replaced hunting and gathering as the main source of food. From Anatolia to North Africa to Peru, the staple grains of wheat, rice, corn, millet, oats, barley, and rye, the legumes such as peas and beans, and other vegetables from squashes to radishes, were almost all annual crops.
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Roberts, Patrick. "Tropical Forests Natural History, Diversity, and Potentiality as Theatres of Human Adaptation and Negotiation." In Tropical Forests in Prehistory, History, and Modernity. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198818496.003.0006.
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The above quote by the German poet, novelist, and painter Herman Hesse highlights the cultural significance of forests in nineteenth- and twentieth-century western culture as the ‘natural’ contrast to growing urban populations and industrial expansion. Hesse’s focus on the ‘ancient’ element of these environments is certainly valid in a tropical context, given that tropical forests are some of the oldest land-based environments on the planet, existing for over one thousand times longer than Homo sapiens (Upchurch and Wolf, 1987; Davis et al., 2005; Ghazoul and Shiel, 2010; Couvreur et al., 2011). This antiquity also makes them one of the richest and most diverse terrestrial ecosystems on the planet (Whitmore, 1998; Ghazoul and Shiel, 2010). Tropical rainforests, for example, contain over half of the world’s existing plant, animal, and insect species (Wilson, 1988). A significant portion of the developed world’s diet today originated in tropical forests—including staples such as squash and yams, spices such as black pepper, cinnamon, cloves, and sugar cane, and fruits including bananas, coconuts, avocados, mangoes, and tomatoes (Iriarte et al., 2007; Roberts et al., 2017a). Tropical forests also often provide ample freshwater for their inhabitants. However, despite popular perceptions of forests, and specifically tropical forests, as uniform, they are, in fact, highly variable across space and time. In tropical evergreen rainforests productivity is often primarily allocated to wood products, meaning that edible plants and animals for human subsistence have been considered lacking, or at least more difficult to extract, relative to more open tropical forest formations (Whitmore, 1998; Ghazoul and Shiel, 2010). Similarly, while evergreen tropical rainforests generally receive significant precipitation and freshwater, seasonally dry tropical forests are subject to sub-annual periods of aridity. Therefore, while archaeologists and anthropologists have tended to see ‘tropical forest’ as a uniform environmental block, it is important to explore the diversity within this category.
Conference papers on the topic "Squashes in art"
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Levine, R. F., and P. K. Shoff. "STIMULATED MEGAKARYOCYTES ARE FOUND IN CHILDHOOD ITP BUT NOT IN ADULT ITP." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644584.
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ITP is thought to be caused primarily by peripheral platelet destruction, but recent work has suggested that platelet production may also be impaired. Although the clinical course in children usually differs from that in adults, no distinctions have been established with regard to marrow characteristics. To evaluate megakaryocyte (mega) responses in this disease we examined mega size, ploidy, maturation and morphology in 8 children and in 8 adults with ITP and in 8 "normal" marrows (4 children, 4 adults). Marrows were prepared by a buffy coat wedge smear or by a cover slip squash method. Control values differed according to the type of marrow smear used. From 100-300 Feulgen-stained megas were examined in each specimen, as previously described. Wright-stained material was also examined. With the squash method megas from normal children and adults had similar characteristics. The megas of each child with acute ITP showed marked increases in size (volumes were 4X normal), ploidy (as high as 1024 N; medians were 64N, or 2 doublings higher than normals), and maturation stage (86% mature forms vs 43%). In contrast, none of the marrows of adults with acute or chronic ITP (1 with mild, 4 moderate, and 3 with severe thrombocytopenias) showed any stimulation of megas. Overall, their megas were normal in size, ploidy and maturation. Occasional dissociation of mega ploidy and maturation was seen, but not enough to alter the profiles of any one parameter. There were no obvious or suggestive signs of "damage" to the megas of children or adults with ITP. In conclusion, the megas of childhood ITP showed a pattern of marked stimulation of size, ploidy and maturation, as seen in animals injected with antiplatelet serum. The failure of adult marrows to response in these parameters to thrombocytopenia may be pathogenetically related to the chronicity of adult ITP.
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A. Munem, Hesham S., ElSayed K. Abou El Kassem, and Essam E. Khalil. "Flow Regimes and Thermal Comfort Around Spectators in Air Conditioned Squash Courts." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47629.
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Although there are still a number of squash arenas that are not air-conditioned or heated; Air conditioning of squash courts has become a trend when design and establishing new squash courts as well as other sporting arena. The current paper numerically investigates the influence of location and number of air conditioning supply and extracts openings on air flow properties in spectators’ area within a squash area. The present work focuses on predicting air flow patterns and thermal behaviour through investigating of the air flow regimes and moisture content inside the spectators’ area. Furthermore, the work investigates the heat transfer behaviour through analysing temperature and relative humidity profiles within the area. Moreover, carbon dioxide dispersion is investigated in order to recommend design features that aid to achieve the thermal comfort environment inside the studied area. The present investigation made use of Computational Fluid Dynamics (CFD) simulation techniques as embedded in the commercially available code (FLUENT 6.2).
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Grima, Joseph N., Ruben Gatt, Pierre-Sandre Farrugaia, Andrew Alderson, and Kenneth E. Evans. "Auxetic Cellular Materials and Structures." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-82260.
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Auxetic materials and structures exhibit the very unusual property of becoming wider when stretched and narrower when squashed (i.e. they have a negative ‘Poisson’s ratio’). This property results in many beneficial effects in the characteristics of the system that make auxetics superior to conventional systems in many practical and high tech applications, including aeronautics where, for example, auxetics are being proposed as potential components for the production of better quality lifting devices such as helicopter rotor blades or airplane wings. This work reviews and discusses the behaviour of known and novel cellular systems, which exhibit this unusual but highly desirable property.
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Furmaniak-Kazmierczak, E., J. Jagielski, and T. Wilusz. "THE EFECT OF CMTI-I INHIBITOR ON HUMAN BLOOD CLOTTING SYSTEM." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644327.
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Polipeptyde inhibitors for different serine proteases have been isolated from a variety of plants. Among them there are the inhibitors from squash seeds of molecular weight about 3 300 /1/. The experiments were carried out to determine the effect of one of the squash inhibitors /CMTI-I/ on human blood clotting system. The 0.1 ml of inhibitor /O,8-100 ug/ was added to 0,1 ml of normal intact plasma and incubated 0,5, 15, 30 and 60 minutes at 37°C. It was found that partial tromboplastin time /PTT/ and activated partial thromboplastin time /APTT/ were prolonged. CMTI-I did not show a progressive mode of action upon prolonged time of incubation. There was no effect of CMTI-I on prothrombin time /PT/, thrombin time /TT/ and Stypven-cephalin time /ScT/. The influence of CMTI-I on APTT of factor-XII and factor-XI deficient plasmas as well as on a plasma without factor-XII and factor-XI /exhausted plasma/ was studied. The APTTs of the factor-XII and factor-XI deficient plasmas were prolonged while the APTT of the "exhausted plasma" was unchanged. The performed experiments shown that CMTI-I inhibitor blocks the clot-promoting activity of contact activated plasma. This inhibitory action is stronger in the case of factor XI than of factor XII.1. Wieczorek M., et al., 1985, Biochem. Biophys. Res. Commun. 126:646-652.
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Khalilpasha, Hossein, and Faris Albermani. "On the Propagation Buckling and Effects in Ultra-Long Deep Subsea Pipelines." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49879.
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This paper considers buckling propagation in ultra-long deep subsea pipelines. Experimental investigation of buckle propagation in ultra-deep pipelines was conducted to verify the analytical solutions proposed by the authors in a previous paper [1]. A series of experiments were designed and conducted to calibrate the equations and verify the analytical and numerical results. The tests include tensile coupon tests, ring squash tests and buckle propagation tests on intact and dented Aluminum pipes with three different D/t ratios. The results are in good agreement with the proposed analytical solution.
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Sen, Millan, Sherif Hassanien, Yves Cormier, and Smitha Koduru. "Methodologies for Establishing the Probability of Pipeline Failure at Slope Crossings." In 2018 12th International Pipeline Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/ipc2018-78352.
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Pipelines in transmission pipeline networks often traverse land slopes along the right-of-way; especially near water crossings. While the vast majority of these slopes are stable, some might have a potential for instability related movements. Accordingly, pipelines subjected to these movements are susceptible to strain overload which may cause loss of containment in terms of buckling and/or tensile elongation failure modes. In order to analyze the risk of failure of pipelines due to slope movement it is beneficial to establish probabilistic approaches that can predict the likelihood of failure at each site given both aleatory and epistemic uncertainties. Estimation of such likelihood would support prioritization of integrity mitigation actions and confirm pipelines’ safety. There is a gap in pipeline literature in terms of available probabilistic approaches to analyze, assess, and manage such an integrity threat. Two probabilistic approaches are presented herein; a qualitative ranking analysis of slope hazards (QuRASH) and a semi-quantitative analysis of slope hazards (SQuASH). QuRASH is a qualitative approach that adopts site scores based on available slope characteristics, historical movements, expert opinion, and mitigation strategies. SQuASH is a reliability-based explicit limit state approach. Both approaches were applied to a large simulated sample of slope crossings that exhibit characteristics representative of North America transmission pipeline slope crossings. The resulting probabilities of failures were directly compared to those predicted based on expert judgement. The high ranked sites compared favorably with those evaluated by experts to exhibit elevated threats. This successful comparison provides a certain level of confidence in the proposed approaches.
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Walvekar, Vinayak, Chandrashekhar K. Thorbole, Prasanna Bhonge, and Hamid M. Lankarani. "Birdstrike Analysis on Leading Edge of an Aircraft Wing Using a Smooth Particle Hydrodynamics Bird Model." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-37667.
Full textAbstract:
With the increase in air travel, the recent occurrences of birdstrikes on aircraft pose a major threat to human life; hence, there is a need to develop aircraft structures with a high resistance to such occurrences. According to the Federal Aviation Regulation (FAR 25.571) on Damage-Tolerance and Fatigue Evaluation of Structure (Amdt. 25-96), an airplane must be capable of successfully completing a flight during which likely structural damage might occur as a result of impact with a four-pound (1.8 kg) bird at sea-level cruise velocity or 0.85 percent of cruise velocity at 8,000 feet (2,400 m). Since the actual physical testing of a birdstrike is expensive, time-consuming, and cumbersome, this paper presents a methodology, based on the use of analytical finite element modeling and analysis, to certify an aircraft for a birdstrike. In actual physical testing for birdstrikes the mass of the bird might not be accurate and hence for certification purpose the computational modelling technique is more accurate and standardizes the certification procedure. The modeling and simulations are carried out as follows: the bird is modeled using the smooth particle hydrodynamics (SPH) technique in the LS-Dyna nonlinear finite element code. To validate this model, birdstrikes are carried out on rigid and deformable plates. The results, including displacement, Von-Mises stresses, forces, impulse, squash time and rise time, are obtained from the simulation, and non-dimensional values are plotted and compared with results from the test data. The detailed CAD geometry of the leading edge of an aircraft is modeled in CATIA V5. Meshing, connections, and material properties are then defined in the Altair Hypermesh 9.0 program. The results obtained from the birdstrike simulations on this leading edge are compared to data from the experiments, and the process is validated. Parametric studies are carried out by designing the aircraft leading edge for different values of nose radius and by assigning appropriate thickness values for leading-edge components and impacting the SPH-modeled bird at different velocities. The methodology and results obtained from simulation can be utilized in the initial design stages as well as for “certification by analysis” of an aircraft for birdstrike requirements as per federal regulations.
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Dygert, Joseph P., Melissa L. Morris, Erik M. Messick, and Patrick H. Browning. "Feasibility of an Energy Efficient Large-Scale Aquaponic Food Production and Distribution Facility." In ASME 2014 8th International Conference on Energy Sustainability collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/es2014-6567.
Full textAbstract:
Today the United States is plagued by societal issues, economic insecurity, and increasing health problems. Societal issues include lack of community inclusion, pollution, and access to healthy foods. The high unemployment coupled with the rising cost of crude oil derivatives, and the growing general gap between cost of living and minimum wage levels contribute to a crippled consumer-driven US economy. Health concerns include increasing levels of obesity, cardiovascular disease, cancer, and diabetes. These epidemics lead to staggering economic burdens costing Americans hundreds of billions of dollars each year. It is well-known that many of the health issues impacting Americans can be directly linked to the production, availability, and quality of the food. Factors contributing to the availability of food include reduction of United States farmland, an increase in food imported from overseas, and the cost of goods to the consumer. The quality of food is influenced by the method of growth as well as imposed preservation techniques to support food transportation and distribution. At the same time, it has become increasingly common to implement biotechnology in genetically modified crops for direct human food or indirectly as a livestock feed for animals consumed by humans. Crops are also routinely dosed with pesticides and hormones in an attempt to increase productivity and revenue, with little consideration or understanding of the long term health effects. Research shows that community gardens positively impact local employment, community involvement and inclusivity, and the diets of not only those involved in food production, but all members of their households. The purpose of this work is to determine the feasibility of an energy efficient large-scale aquaponic food production and distribution facility which could directly mitigate growing socioeconomic concerns in the US through applied best practices in sustainability. Aquaponics is a symbiotic relationship between aquaculture and hydroponics, where fish and plants grow harmoniously. The energy efficient facility would be located in an urban area, and employ solar panels, natural lighting, rain water reclamation, and a floor plan optimized for maximum food yield and energy efficiency. Examples of potential crops include multiple species of berries, corn, leafy vegetables, tomatoes, peppers, squash, and carrots. Potential livestock include responsibly farmed tilapia, shrimp, crayfish, and oysters. The large scale aquaponic facility shows a lengthy period for financial return on investment whether traditional style construction of the building or a green construction style is used. However many forms of federal government aid and outside assistance exist for green construction to help drive down the risk in the higher initial investment which in the long run could end up being more profitable than going with a traditionally constructed building. Outside of financial return there are many proven, positive impacts that a large-scale aquaponic facility would have. Among these are greater social involvement and inclusivity, job creation, increased availability of fresh food, and strengthening of America’s agriculture infrastructure leading to increased American independence.