Academic literature on the topic 'Eight Streets Park'
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Journal articles on the topic "Eight Streets Park"
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Kunina, V. A., and O. G. Belous. "STATE OF PHOTOSYNTHETIC PIGMENTS LEAVES OF WOODY PLANTS IN AN URBAN ENVIRONMENT." Scientific Notes of V.I. Vernadsky Crimean Federal University. Biology. Chemistry 6(72), no. 2 (2020): 108–18. http://dx.doi.org/10.37279/2413-1725-2020-6-2-108-118.
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Enriching the flora of the region’s cities with environmentally effective, sustainable and aesthetically attractive green spaces is very important. The study of urban green spaces (both native and introduced species) with an assessment of their resistance to the complex of stress factors of the urban environment is of important scientific and practical importance. Moreover, in Sochi, comprehensive studies of ecological and biological features of tree crops have not been conducted before. The article presents the results of research on the ecological and biological features of a number of promising tree crops in urban greening. The issues of changing the content of green pigments and evaluating the chlorophyll fluorescence in leaves are considered. Eight species that are most used in urban landscaping as research objects have been selected. Streets with the greatest length and intensity of anthropogenic factor (characterized by significant automobile traffic) as «stressful» observation points were chosen. Kuban Subtropical Botanical garden (KSBG) and the park «Dendrarium» are zones of conditional control territories. It is shown that plants are characterized by different content of green pigments. This fact should be taken into account when analyzing the ecological contribution of green spaces to the optimization of the urban environment. According to the level of variability in the content of chlorophyll, the studied species of woody plants can be placed in the following row: Jasminum mesnyi > Ligustrum lucidum and Eriobotrya japonica > Prunus laurocerasus > Nerium oleander > Cinnamomum camphora > Laurus nobilis and Magnolia grandiflora > Aucuba japonica > Viburnum tinus. It was found that the content of pigments in leaves in areas of the most intensive traffic is significantly lower (LSD (p ≤0.05) = 0.53 – 0.97 depending on the breed) compared to plants selected in the zones of conditional control. It is shown that total content of pigments not`s important, as their ratio In the zone of conditional control (ZCC), the amount of chlorophyll a in comparison with chlorophyll b is significantly higher (LSD (p ≤0.05) = 0.68) than in the «stress» observation points. The stationary fluorescence level (F_T), the viability level (Fm/F_T), the photosynthetic activity index using the extrapolation algorithm (Kf_T), and the photosynthetic activity index calculated at each current measurement point (Kf_n) were evaluated. It was revealed that L. nobilis, N. oleander, J. mesnyi, C. camphora, and E. japonica are plants with the highest photosynthetic activity. In species with a busy transport load, the stationary level of fluorescence is lower, which indicates a decrease in plant viability.
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Abdullah, S. M., Rumana Huque, Linda Bauld, Hana Ross, Anna Gilmore, Rijo M. John, Fiona Dobbie, and Kamran Siddiqi. "Estimating the Magnitude of Illicit Cigarette Trade in Bangladesh: Protocol for a Mixed-Methods Study." International Journal of Environmental Research and Public Health 17, no. 13 (July 3, 2020): 4791. http://dx.doi.org/10.3390/ijerph17134791.
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The illicit tobacco trade undermines the effectiveness of tobacco tax policies; increases the availability of cheap cigarettes, which, in turn, increases tobacco use and tobacco related deaths; and causes huge revenue losses to governments. There is limited evidence on the extent of illicit tobacco trade particularly cigarettes in Bangladesh. The paper presents the protocol for a mixed-methods study to estimate the extent of illicit cigarette trade in Bangladesh. The study will address three research questions: (a) What proportion of cigarettes sold as retail are illicit? (b) What are the common types of tax avoidance and tax evasion? (c) Can pack examination from the trash recycle market be considered as a new method to assess illicit trade in comparison to that from retailers and streets? Following an observational research method, data will be collected utilizing empty cigarette packs from three sources: (a) retailers; (b) streets; and (c) trash recycle market. In addition, a structured questionnaire will be used to collect information from retailers selling cigarettes. We will select post codes as Primary Sampling Unit (PSU) using a multi-stage random sampling technique. We will randomly select eight districts from eight divisions stratified by those with land border and non-land border; and within each district, we will randomly select ten postcodes, stratified by rural (five) and urban (five) PSU to ensure maximum geographical variation, leading to a total of eighty post codes from eight districts. The analysis will report the proportions of packs that do not comply with the study definition of illicit. Independent estimates of illicit tobacco are rare in low- and middle-income countries such as Bangladesh. Findings will inform efforts by revenue authorities and others to address the effects of illicit trade and counter tobacco industry claims.
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Prudente, Thayane de Cácia Brito, Rayssa Béder César Paiva, and Daniela Tavares Gontijo. "Desempenho ocupacional de mulheres em situação de rua / Occupacional performance of homeless women." Revista Interinstitucional Brasileira de Terapia Ocupacional - REVISBRATO 2, no. 1 (January 31, 2018): 85–108. http://dx.doi.org/10.47222/2526-3544.rbto11544.
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Introdução: A população em situação de rua caracteriza-se predominantemente pela falta de moradia regular, condição de pobreza extrema e vínculos rompidos ou fragilizados. No entanto, a vida na rua e o acesso aos serviços socioassistenciais tendem a não se configurar da mesma forma para homens e mulheres. Considerando a perspectiva do desempenho ocupacional, os terapeutas ocupacionais se preocupam com os fatores que influenciam o envolvimento dos sujeitos em ocupações. Objetivo: compreender o desempenho ocupacional de mulheres em situação de rua. Métodos: Estudo de abordagem qualitativa, com base na História Oral de Vida. A coleta de dados foi realizada em dois serviços socioassistenciais do Recife que atendem pessoas em situação de rua. Os dados foram coletados através de entrevistas semiestruturadas e submetidos à Análise de Conteúdo Temática. Resultados/discussão: Foram entrevistadas 8 mulheres com idades entre 20 a 39 anos. A análise resultou em três categorias temáticas: Desempenho Ocupacional na infância, Ida para rua e Desempenho Ocupacional na rua. As categorias forma dividias em: Atividades de Vida Diária (AVDs), Atividades Instrumentais de Vida Diária (AIVDs), Trabalho, Lazer e Participação Social. Observou-se que as mulheres em situação de rua vivenciam um processo de privação ocupacional pela situação de desfiliação em que vivem, com repercussão negativa na qualidade de vida. Conclusão: Neste estudo pode-se observar a dificuldade das mulheres em realizar todas as ocupações, justificando a intervenção da Terapia Ocupacional para favorecer o empoderamento pessoal, a ressignificação do cotidiano e exercício da cidadania. AbstractIntroduction: The population in street situation is predominantly characterized by a lack of regular housing, an extreme poverty and weakened or broken bonds. However, street living and access to social assistance services tend not to be configured in the same way for men and women. Considering the perspective of occupational performance, occupational therapists are concerned with factors that influence the subjects' engagement in occupations. Objective: To understand the occupational performance of women who are homeless. Method: A qualitative study based on the Oral Story of Life. The data collection was performed in two social assistance services in the city of Recife that receive people who live on streets. Data were collected through semi-structured interviews and submitted to the Thematic Content Analysis. Results/Discussion: Eight women aged 20 to 39 years were interviewed. The analysis resulted in three thematic categories: Occupational Performance in childhood, Going to the streets and Occupational Performance in the streets. The categories were divided into Activities of Daily Living (ADLs), Instrumental Activities of Daily Living (IADLs), Work, Leisure and Social Participation. It was observed that homeless women experience a process of occupational deprivation with negative repercussions on the quality of life due to the situation of disaffiliation in which they live. Conclusion: In this study it is possible to observe the women's difficulty to perform all the occupations, justifying the intervention of the Occupational Therapy to favor the personal empowerment, the resignification of the daily life and the exercise of the citizenship.Keywords: Homeless persons, Autobiography, Gender identity, Women, social Vulnerability, Occupational therapy.
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Pedroza, Wellington Silva, Frank Raynner V. Ribeiro, Túlio Franco Teixeira, Willian M. Ohara, and Lúcia H. Rapp Py-Daniel. "Ichthyofaunal survey of stretches of the Guariba and Rooselvelt Rivers, in Guariba State Park and Guariba Extractive Reserve, Madeira River basin, Amazonas, Brazil." Check List 8, no. 1 (February 1, 2012): 008. http://dx.doi.org/10.15560/8.1.008.
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The fishes presented herein were collected in small streams, in channel of lagoons and in the main channel of the Guariba River, as well as in one tributary of the right bank of the Roosevelt River, both clear-water tributaries of Aripuanã River, Madeira River basin. Field work was carried out in November 2008, during the low water season. Sampling resulted in 3924 specimens belonging to 160 species distributed in 34 families, and seven orders. Eight species are recognized as new, two of which were recently described. This study represents the first fish survey for the region and will certainly provide valuable information for future studies and maintenance of the poorly known fish diversity of these two conservation areas.
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Chow, T. Edwin. "Estimating the Crowd Size of a Rally by Crowdsourcing-Geocomputation." Abstracts of the ICA 1 (July 15, 2019): 1–2. http://dx.doi.org/10.5194/ica-abs-1-46-2019.
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<p><strong>Abstract.</strong> Dynamic population estimation – counting people in a special event (e.g. rally, sport events, evacuation) has been challenging because a large crowd is difficult to acquire an accurate count manually as people can join and leave the crowd at any time and place. In the context of a rally where people are moving on the streets over an extended period, it is often difficult to answer some questions with regards to confine the phenomenon, including but not limited to: When and where does the rally start/end precisely? Who are the attendees (e.g. activists, spectators, organizers, police, opposing crowd(s), etc.)? How does the confining environment affect stochastic human behaviours, interactions and movements over time and space? What is the count (e.g. peak attendance, total count)?</p><p>Nevertheless, estimating the attendance of these dynamic events could be emotionally and politically charged. Due to these practical uncertainties of dynamic population estimation, the attendance of annual July 1st Rally in Hong Kong reported by the police and organizers could be very different as it often became a bluffing game to promote hidden political agenda. For example, the police estimated a peak attendance of 9,800 in the 2017 July 1st Rally, whereas the organizers reported five times the attendance at about 50,000. Independent researchers from the University of Hong Kong estimated the total attendance of 14,170 (Yip, 2017) and 29,000 (HKUPOP, 2017) respectively. With limited field observations, it is hard to examine the accuracy and confident level of these reported counts.</p><p>This research aims to estimate the total attendance of 2017 July 1st Rally in Hong Kong and examine the counts reported by various stakeholders. Based on many stories reported by the public and social media, the timeline of the rally event was reconstructed to trace the observed rally time of the head and tail crowds participated in the rally event. Important geospatial features, including the street network, approved protest areas and entry/exit gateways along the main rally route, were reconstructed in the Geographic Information System (GIS). This study adopted a crowdsourcing-geocomputation approach to simulate how a dynamic crowd would have navigated in such as rally event (Chow, 2019). Using a mobile application that tracks individual trajectory, volunteers were recruited to contribute valuable in-situ data of dynamic human movements and behaviours attending the rally event. These data were used to formulate and calibrate the parameters of a computational cartographic model where each rally attendees were represented as a moving agent (x, y, t) confined in a micro spatial environment where the protesters marched from Victoria Park to the Government Headquarter in Hong Kong. Hence, individual GPS (Global Positioning System) trajectory during the rally was collected and converted into GIS data format for further analysis. More details about the data collection and processing can be found on the project website (https://chowte.wixsite.com/dynamicpop). By leveraging a large number of observations volunteered by crowdsourcing, this study attempted to answer the research question: <i>What might be the simulated crowd size that reasonable range of model parameters can be converged?</i></p><p> Using this crowdsoucing-geocomputation model, a sensitivity analysis was conducted to simulate varying model parameters, including maximum walking speed, maximum crowd density, early departure and late entry rates. Based on the reported count reported by the police, organizers and independent researchers, various crowd sizes were simulated to be compared against the observed rally time of 209 minutes (i.e. about 3.5 hours) from start to finish. Using the crowdsourced data for calibration, most rally models simulated an arrival time of head crowd between 106&ndash;108 minutes, which was very close to the observed rally time of head crowd of 107 minutes. In this study, crowd sizes were considered to be acceptable based on a 95% confidence interval of arrival time of tail crowd (i.e. 174&ndash;192 minutes) and total rally time (i.e. 199&ndash;219 minutes). For example, a crowd size of 9,800 people was simulated matching the total rally time to examine the credibility of calibrated model parameters (Figure 1).</p><p> Within the tested range of calibrated model parameters, the results indicated that it was possible to tweak the model parameters of varying crowd size to match the observed rally time (Table 1). Despite the simulated rally time of some accepted models were within ±5% of the observed rally time, the parameters used to simulate such a model were not necessary reasonable in reality. The simulated count of 9,800, for example, would require a cap of maximum walking speed of 0.5&thinsp;m/s, which seemed to be unreasonably slow under normal circumstance and incompatible with crowdsourced data (Figure 1). Given the observed rally time, it was found that the crowd sizes of 14,000&ndash;29,000 could be simulated with reasonable model parameters, whereas the crowd sizes of 9,800 and 50,000 would yield unreasonable model parameters. Taking the median within the range of 14,000&ndash;29,000, this study also found that a crowd size of 21,000 could yield eight matching simulations with varying reasonable model parameters that may be better simulate the actual rally attendance.</p><p>This paper provided empirical evidences to examined the credibility of various crowd sizes of the 2017 July 1st Rally in Hong Kong reported by the stakeholders. The research also presents a transparent, repeatable and verifiable approach to explore, quantify and simulate human movements in a rally event, such as the early departure and late arrival, to better understand dynamic crowd behaviours and interactions.</p>
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Filigrana, Pastora. "Anti-racist Feminism or Barbarism." South Atlantic Quarterly 119, no. 3 (July 1, 2020): 629–36. http://dx.doi.org/10.1215/00382876-8601470.
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In September 2017, feminist assemblies began meeting on the eighth day of each month in multiple cities and towns across Spain to prepare for the feminist strike in the country. That same fall, the trial is held for the “wolf pack,” the gang rape that occurred during the festival of San Fermín in 2016: once again, the woman who was raped is put on trial, and not the rapists. With the slogans, “I believe you” and “Listen, sister, here is your pack,” the call goes viral, filling streets, plazas, and social media. This viral call is repeated in April when the sentence in announced that only condemns the members of the group for “abuse” and not for rape, and with even one vote from a judge who dared to say that there was enjoyment on all sides. The streets are dyed a feminist purple: a capillary feminism that reacts as a single body against each piece of news of sexist violence. In that atmosphere, and following a massive feminist strike on March 8, the denunciation of sexual abuse presented by several seasonal strawberry pickers in Huelva leaps into the media. Some collectives call for a march, expecting it to go viral again. However, the response it not at all the same either in number or in intensity. What happened? Debates catch fire. There are accusations: the feminism organized around March 8 and that was expressed in the protests against the wolf pack is racist. The answer is more complex, but there is no doubt that the feminist defiance of the seasonal strawberry workers challenges organized feminism and the unions in an unprecedented way. It speaks of the capillary quality of feminist sensibility, but also of its limits and paradoxes.
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Dutra, Silvia L., and Marcos Callisto. "Macroinvertebrates as tadpole food: importance and body size relationships." Revista Brasileira de Zoologia 22, no. 4 (December 2005): 923–27. http://dx.doi.org/10.1590/s0101-81752005000400018.
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Macroinvertebrates as food were recorded for three anurans tadpoles: Hyla saxicola (Bokermann, 1964) (Hylidae), Scinax machadoi (Bokermann & Sazima, 1973) (Hylidae), and Bufo rubescens (Lutz, 1925) (Bufonidae). These species are commonly found in the mountain streams at Serra do Cipó National Park, Minas Gerais State, Brazil. Tadpoles were collected in pools of second-order reach in Mascates stream and third and fourth order reaches of Indaiá stream from March-October, 2003. Biometrical data were recorded before dissecting each individual and a feeding importance index was estimated. Eight taxa of chironomids and three taxa of mayfly exuviae were found in the guts, but no significantly differences were found between tadpole species (ANOVA, p > 0.05). The results support the drift transport hypothesis that predicts that tadpoles commonly ingest suspended matter in lotic ecosystems, are generalist feeders, and macroinvertebrates are probably incidental ingested.
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Gavrikova, V. S., and O. A. Ignatyuk. "The dynamics of fluctuating asymmetry of Acer platanoides L. leaves in urbanized environment." Ecology and Noospherology 25, no. 3-4 (June 24, 2014): 34–44. http://dx.doi.org/10.15421/031418.
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The paper discusses the investigation of stability of developmental processes of vegetative organs of Acer platanoides L. trees from different habitats (derivative of natural stands and managed plantations). Developmental stability (instability) is appraised based on the value of the index of leaves fluctuating asymmetry. The various aspects of the dynamics of fluctuating asymmetry of Acer platanoides L. leaves are discussed from the perspective of its using with the purpose of bioindication of urbanized environmental state. The method of the detection of fluctuating asymmetry values of A. platanoides leaves using the five original morphological parameters that are well detected on recently collected leaves and can be successfully measured on the digital image is developed and suggested by authors. Modification of the method (namely, measuring by using the digital image) is admitted to avoid long-termed measuring the recently collected leaves which will wither quickly enough and change its shape and size. It is established, that there is no significant differences of asymmetry of individual leaves within the tree. The series of experiments in the “Feofania” was investigated with the purpose of studying the patterns of the dynamics of fluctuating asymmetry during the season. The assays from the same nine trees were collected in May (directly after the leaf-forming), June, July. It is showed, that the fluctuating asymmetry values of A. platanoides leaves are not changed reliably (p=0,05) within the tree and the whole habitat during the season. Therefore, biomonitoring and bioindication using the fluctuating asymmetry of leaves can be conducted at the beginning and the end of the vegetative season. The three years dynamics of fluctuating asymmetry values of A. platanoides leaves from eight habitats in Kyiv is investigated. During three years the value of fluctuating asymmetry is varied in the short interval – from 6 % to 8 %. It is founded, that the tendency of changing the fluctuating asymmetry values is different for various habitats. The fluctuating asymmetry value of A. platanoides leaves for four habitats (“Feofania”, “Lysa Gora”, “Goloseevskiy Park”, “Desnyanskiy Park”) of the eight investigated decreases during the 3-year period. The highest values are recorded for three habitats (“Pushcha-Vodytsia”, “Vossoedinenia Avenue”, “Siretskiy Grove”) in 2012. The tendency of the asymmetry increasing during the whole period of investigation is recorded in only one habitat (“Ivana Kudri Street”). The fluctuating asymmetry value in 2013 is lower than the value of this parameter in 2012 in seven of the eight habitats (except “Ivana Kudri Street”). The averaged annual fluctuating asymmetry values in all habitats of the megalopolis also suggest that there is a slight decrease of the asymmetry value in 2013 in comparison with previous years. Discovered differences of the fluctuating asymmetry values of A. platanoides leaves in studied habitats in different years show the tendency, which does not give the clear picture. Apparently, it is connected with the certain constellation of existing natural and anthropogenic factors. To discovery its regularity the more prolonged and profound investigations should be conducted. Therefore, to get representative results of monitoring we recommend conducting the bioindication with using the fluctuating asymmetry values of A. platanoides leaves during several (minimum three) years running. The comparison of the averaged (during three years) values of the fluctuating asymmetry of every habitat and the averaged value of the whole megalopolis shows normalized results. The habitats “Desnyanskiy Park” and “Vossoedinenia Avenue” demonstrate reliably higher fluctuating asymmetry. There is also the similar fluctuating asymmetry value of leaves from habitat “Ivana Kudri Street”. The averaged fluctuating asymmetry values of leaves from habitats “Siretskiy Grove” and “Goloseevskiy Park” are reliably lower than the averaged value of the megalopolis. Therefore, the highest values of the fluctuating asymmetry of A. platanoides leaves, which show the least stable developmental processes of plants, are founded on the territories, that have the maximum level of urbanization. These habitats are managed plantation. The others investigated habitats are natural stands. It is detected, that the fluctuating asymmetry value of A. platanoides leaves decreases when proportion of its dominance in the stands increases. It should be appreciated when choosing the control group of plants during the monitoring. The control group should be from the natural stand with the maximum dominance of the relevant species.
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Castro, Ramon Azevedo Silva de, Éllen Bárbara Padilha, Cássia Maria Dias, and Nadja Cristiane Lappann Botti. "Vulnerabilidades da população em situação de rua ao comportamento suicida." Revista de Enfermagem UFPE on line 13, no. 2 (February 9, 2019): 431. http://dx.doi.org/10.5205/1981-8963-v13i2a237023p431-437-2019.
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RESUMOObjetivo: compreender as vulnerabilidades de adultos em situação de rua ao comportamento suicida. Método: trata-se de um estudo qualitativo, descritivo, realizado com oito pessoas em situação de rua com história de tentativa de suicídio. Fez-se a coleta de dados por meio de entrevista, e os resultados a partir da técnica de Análise de Conteúdo na modalidade Análise Categorial. Resultados: entende-se que as categorias geradas a partir da análise temática dos dados foram os contextos de vulnerabilidade à ideação suicida, tentativa de suicídio e suicídio para pessoas em situação de rua. Observou-se que os entrevistados acreditam que o comportamento suicida ocorre na população em situação de rua em função da tristeza, sofrimento, desesperança, uso problemático de álcool e/ou outras drogas, doenças e falta de fé. Conclusão: expõem-se os adultos em situação de rua a constantes e diversas situações de vulnerabilidades ao comportamento suicida. Descritores: Pessoas em Situação de Rua; Vulnerabilidade em Saúde; Suicídio; Ideação Suicida; Tentativa de Suicídio; Saúde Mental. ABSTRACT Objective: to understand the vulnerabilities of street adults to suicidal behavior. Method: this is a qualitative, descriptive study carried out with eight street persons with a history of attempted suicide. Data was collected through an interview, and the results were obtained from the Content Analysis technique in the Categorical Analysis modality. Results: it is understood that the categories generated from the thematic analysis of the data were contexts of vulnerability to suicidal ideation, suicide attempt and suicide for street people. It was observed that the interviewees believe that suicidal behavior occurs in the street population due to sadness, suffering, and hopelessness, problematic use of alcohol and / or other drugs, illness and lack of faith. Conclusion: the adults in the street situation are exposed to constant and diverse situations of vulnerability to suicidal behavior. Descriptors: Homeless People; Vulnerability in Health; Suicide; Suicidal Ideation; Suicide attempt; Mental health. RESUMEN Objetivo: comprender las vulnerabilidades de los adultos en situación de calle al comportamiento suicida. Método: se trata de un estudio cualitativo, descriptivo, realizado con ocho personas en situación de calle con historia de intento de suicidio. Se hizo la recolección de datos por medio de entrevista, y los resultados a partir de la técnica de Análisis de Contenido en la modalidad Análisis Categorial. Resultados: se entiende que las categorías generadas a partir del análisis temático de los datos fueron los contextos de vulnerabilidad a la ideación suicida, intento de suicidio y suicidio para personas en situación de calle. Se observó que los entrevistados creen que el comportamiento suicida ocurre en la población en situación de calle en función de la tristeza, sufrimiento, desesperanza, uso problemático de alcohol y / u otras drogas, enfermedades y falta de fe. Conclusión: se exponen los adultos en situación de calle a constantes y diversas situaciones de vulnerabilidades al comportamiento suicida. Descriptores: Personas sin Hogar; Vulnerabilidad em Salud; Suicidio; Ideación Suicida; Intento de Suicidio; Salude Mental.
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Wallace, Robert, Guido Ayala, Nuno Negroes, Timothy O’Brien, Maria Viscarra, Ariel Reinaga, Robert Márquez, and Samantha Strindberg. "Identifying Wildlife Corridors Using Local Knowledge and Occupancy Methods along the San Buenaventura-Ixiamas Road, La Paz, Bolivia." Tropical Conservation Science 13 (January 2020): 194008292096647. http://dx.doi.org/10.1177/1940082920966470.
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In 2013, we conducted a baseline study on the presence, distribution and occupancy of medium- to large-sized mammals in Bolivia along the San Buenaventura-Ixiamas road that runs parallel to the Madidi National Park and Natural Area of Integrated Management boundary and cuts through the Tacana Indigenous Territory and a number of neighboring private properties. Establishing a 3 km buffer on each side of the road, we studied an 865 km2 area divided into 1 km2 cells and sampled a total of 356 of these cells. In each cell, we established one 300 m transect divided into 25 m sections and registered wildlife sign, mainly footprints, from eight wildlife species or species groups. The transects were placed either along streams (75% of cells) or within forest (25% of cells). Using single-season single-species occupancy models we estimated occupancy (ψ) for Tapirus terrestris (ψ = 0.39), Pecari tajacu (ψ = 0.5), Mazama americana (ψ = 0.56), Dasyprocta spp. (ψ = 0.59), Cuniculus paca (ψ = 0.56), Leopardus spp. (ψ = 0.33), and use for Tayassu pecari (ψ = 0.17) and Panthera onca (ψ = 0.11). Occupancy and use results verified community perceived wildlife corridors between Madidi and its area of influence. We identified additional corridors along many streams crossing the San Buenaventura-Ixiamas road. This connectivity is not only important for wildlife, but also from a food security perspective for the indigenous communities that depend on wildlife as an important source of protein. The results will be used to mitigate the impact of road improvements through the identification of priority areas for maintaining connectivity between Madidi and the surrounding landscape.
Books on the topic "Eight Streets Park"
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Greene, Dana. “A Definite and Peculiar Destiny”. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252037108.003.0002.
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This chapter details the early life of Denise Levertov. Denise was born in Ilford, on October 24, 1923, to Beatrice Spooner-Jones and Paul Levertoff. Her older sister Olga was nine. Eight months after Denise's birth the Levertoffs bought five-bedroom, brick, semidetached house at 5 Mansfield Road in Ilford not far from Lenox Gardens and nearby Cranbrook Road, the main street, and close to the large Valentine and Wanstead parks. The Levertoff household was a hive of activity. Since neither daughter attended school, everyone was generally at home. They had few connections to the surrounding community and no extended family with whom they regularly interacted. Their Welsh, Russian, and Jewish cultural origins set them apart. Nonetheless, wayfarers of every sort—Jewish booksellers, Russian and German scholars, musicians, and Jewish refugees all passed through their home. Everyone in the family read, to themselves and to others. Every room of the house was filled with books, some of which were bought by Paul Levertoff as a secondhand “lot” from Sotheby's.
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Oertel, Gerhard. Stress and Deformation. Oxford University Press, 1996. http://dx.doi.org/10.1093/oso/9780195095036.001.0001.
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Students of geology who may have only a modest background in mathematics need to become familiar with the theories of stress, strain, and other tensor quantities, so that they can follow, and apply to their own research, developments in modern, quantitative geology. This book, based on a course taught by the author at UCLA, can provide the proper introduction. Included throughout the eight chapters are 136 complex problems, advancing from vector algebra in standard and subscript notations, to the mathematical description of finite strain and its compounding and decomposition. Fully worked solutions to the problems make up the largest part of the book. With their help, students can monitor their progress, and geologists will be able to utilize subscript and matrix notations and formulate and solve tensor problems on their own. The book can be successfully used by anyone with some training in calculus and the rudiments of differential equations.
Book chapters on the topic "Eight Streets Park"
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Lane, Belden C. "Justice: The Meramec River at Times Beach and Mohandas Gandhi." In Backpacking with the Saints. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780199927814.003.0025.
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The spring-fed Meramec River wanders for 218 miles through six Missouri counties before it flows into the Mississippi eighteen miles south of St. Louis. It cuts across the northeastern corner of the Ozark Plateau, carving out bluffs of white dolomite limestone along its way. The stream passes by Onondaga Cave, Meramec State Park, and Meramec Caverns, becoming a lazy river fed by smaller tributaries and floated by weekend adventurers. Overhanging sycamores and cottonwoods crowd its banks. Springs and caves invite floaters to tie up their canoes and explore. Mussel beds are plentiful, as are crappie, rainbow trout, and channel cat. The name “Meramec,” in fact, comes from an Algonquin word meaning “ugly fish” or “catfish.” I’ve put the kayak into the water at the river’s Allenton access south of I-44 near Eureka, Missouri. Paddling eight miles downstream, I’ve stopped for the night just past the old Route 66 bridge near Times Beach. Today Times Beach is a ghost town, but it’s still remembered as the site of the worst environmental disaster in Missouri history. In the early 1970s, the country’s largest civilian exposure to dioxin (TCDD) occurred here along the banks of the Meramec. Waste oil containing the toxic chemical used in making Agent Orange was spread on the town streets in order to keep down the dust. The Environmental Protection Agency ended up buying out the entire town and incinerating everything. All that’s left of Times Beach today is what locals refer to as the “town mound,” a long raised embankment of incinerated dirt covered with grass. Since 1999, the site has been turned into Route 66 State Park, commemorating the Mother Road of public highways, begun in 1926. Historic Route 66 was the first of America’s cross-country highways, extending from Chicago to Los Angeles. It crossed the Meramec River at this point. Known as “The Main Street of America,” the road symbolized the nation’s fascination with the automobile and the movement west. “Get your kicks on Route Sixty- Six” crooned Nat King Cole in his R & B classic of the 1940s. Today the old concrete bridge over the river goes nowhere.
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Bayly, Brian. "Summary." In Chemical Change in Deforming Materials. Oxford University Press, 1993. http://dx.doi.org/10.1093/oso/9780195067644.003.0024.
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The purpose of this chapter is to consolidate. No new ideas are introduced; instead we try to sort the main thread from the side issues, and the parts that are reasonably clear and firm from the parts that are still fuzzy. The core of the chapter is a set of seventeen statements, seventeen vertebrae that form the backbone of the book, but there are also a preface and a postscript. The preface provides the setting for the seventeen-part core and the postscript takes up the question of where to go next. The purpose of the book was given at the start of Chapter 1. Even at that early point, a stressed cylinder was used as an example. The purpose is to make headway with the question: if a state of chemical equilibrium exists under hydrostatic stress and is disturbed by making the stress nonhydrostatic, what processes begin to run, and what quantitative relations should we expect to be followed? Before the seventeen-part "answer" it is to be noted that there are two alternative ways of dividing the subject matter into two parts. The division scheme is displayed in Figure 17.1a and separates eight types of change. (A somewhat similar diagram on page 111, distinguished eight circumstances in which change might be observed—a different system of divisions that is of no use here.) Of the eight boxes set up, four have been discussed, as shown in Figure 17.1b. The two ways of dividing this four-box group are by a horizontal cut or by a vertical cut that separates stars from superscript a’s. (A vertical cut separating the N-box from the rest is of no help; it would be contrary to our theme.) The horizontal cut separates stress-driven effects below from composition-driven effects above. It is in fact the traditional division between mechanics and chemistry; enormous amounts of science fall clearly above the cut or clearly below it and cause no confusion at all. This cut was used as a guide in the early chapters, especially in the flow diagram or organization chart, Figure 8.1. By contrast, the second cut appeared as late as Chapter 15, but deserves emphasis; it is at least as instructive and helpful as the first, and perhaps more helpful.
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Compton, Michael T., and Beth Broussard. "Reducing Stress, Coping, and Communicating Effectively: Tips for Family Members and Patients." In The First Episode of Psychosis. Oxford University Press, 2010. http://dx.doi.org/10.1093/oso/9780195372496.003.0023.
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As discussed in previous chapters, psychosis often first begins in late adolescence or young adulthood. Thus, many people who experience a first episode of psychosis live with and rely on their families for support. In addition to providing a place to live and other basic support, families are key in the recovery process because they love and care for the person with the illness and they want to help. Family members may need to provide emotional support, arrange for treatment, and find new ways to cope with the signs and symptoms of psychosis or other problems that result from the illness. Families are a very important part of the team that is necessary to properly manage psychosis. In fact, now that more effective antipsychotic medicines and psychosocial treatments are available, many people with psychosis often can receive treatment in the community and with their families rather than having extended stays in the hospital. Families play a major role in helping their loved ones manage their illness. As a result, it is vital to create a supportive family environment by reducing stress, coping, and communicating effectively. This chapter focuses on three essential domains of a supportive family environment: reducing stress, enhancing coping, and ensuring effective communication. First, we begin by defining …Families play a major role in helping their loved ones manage their illness. As a result, it is vital to create a supportive family environment by reducing stress, coping, and communicating effectively.… stress and the ways that the early stages of psychosis can lead to stress. We discuss three ways to reduce stress in the family as well as three related ways the family can help the patient to reduce stress. Second, we define coping and talk about the importance of coping with a stressful event, like an episode of psychosis in a family member. We offer three ways of coping effectively for family members as well as three ways that patients can practice effective coping. Third, we address the value of good communication and how the symptoms of psychosis can sometimes interfere with productive communication patterns. We then provide eight points of advice for effective communication within the family.
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"Urban and Community Fisheries Programs: Development, Management, and Evaluation." In Urban and Community Fisheries Programs: Development, Management, and Evaluation, edited by Kevin M. Hunt, Harold L. Schramm, Thomas J. Lang, J. Wesley Neal, and Clifford P. Hutt. American Fisheries Society, 2008. http://dx.doi.org/10.47886/9781934874042.ch14.
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<em>Abstract.-</em>We conducted an Internet-based survey of fisheries administrators of each inland fisheries agency (<EM>N </EM>= 51) in the United States to determine current programmatic status of urban fisheries programs, and to determine more in-depth information in eight areas from those with programs. Results indicated that 24 agencies had designated urban and community fishing programs coordinated at a regional or statewide level, or in pilot phase. Of the remaining 27 agencies, all indicated they managed urban and community resources as part of their overall fisheries management activities. In terms of programmatic development, most agencies with programs implemented them after the last status survey in 1991. Over 70% of agencies with programs had a pilot phase prior to program designation that lasted an average of six years. All agencies with programs managed an average of nearly 23 small ponds less than 20 acres as part of the program, and smaller percentages managed lakes, streams, and larger rivers as well. Primary goals of programs were identified as increasing fishing opportunities, recruiting and retaining anglers, and educating people about fisheries and fishing. Most agencies thought that their programs generated public support for their agency, and that their programs provided individual and societal benefits in addition to increased fishing opportunities. All agencies with programs stocked fish as part of the program, with channel catfish <em>Ictalurus punctatus </em>and rainbow trout <em>Oncorhynchus mykiss </em>being the most widely stocked species. Collectively, states with programs stocked about 1.9 million fish annually. More than 80% of agencies targeted youth with their programs, and all had an aquatic education component to their programs directed primarily at youth. Fisheries administrators thought both small and large events with a formal aquatic education component were most effective in achieving education goals, which included increasing stewardship and teaching people how to fish. Administrators indicated that they were receiving needed support from cooperators for their programs, but cooperation was greater at the local than statewide level. Most states have evaluated program effectiveness in terms of number of anglers and youth served and catch and effort, but few states have conducted more thorough analyses required to justify long-term program existence such as the effectiveness of programs in recruiting and retaining anglers and cost/ benefit studies. Inadequate staffing and funding levels and insufficient law enforcement presence were the most frequently cited constraints to making improvements in their programs.
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"Multispecies and Watershed Approaches to Freshwater Fish Conservation." In Multispecies and Watershed Approaches to Freshwater Fish Conservation, edited by Kevin B. Mayes, Gene R. Wilde, Monica E. McGarrity, Brad D. Wolaver, and Todd G. Caldwell. American Fisheries Society, 2019. http://dx.doi.org/10.47886/9781934874578.ch14.
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<em>Abstract</em>.—The Brazos River crosses eight ecoregions on its journey from New Mexico through the heart of Texas to the Gulf of Mexico. This diverse stream ecosystem supports at least 85 fish species, many of which—including two endangered, migratory, pelagic broadcast-spawning cyprinids, Smalleye Shiner <em>Notropis buccula </em>and Sharpnose Shiner <em>N. oxyrhynchus</em>—have life histories that track the natural flow regime. These two shiners were listed as endangered in part because of severe range reductions that left each with one viable population in the upper Brazos River. Given their short life span, a single adverse event, such as a persistent drought of two consecutive years, could lead to extinction. This concern was nearly realized in 2011 when a record drought and heatwave resulted in complete reproductive failure of these species, which led to rescue efforts for imperiled shiners confined to drying pools. Seventeen major reservoirs control streamflow and create distinct, disconnected fragments in the Brazos River basin. Long-term ecological studies have provided a strong science foundation for guiding water and environmental flow management and watershed conservation. Implementation of both upland and riparian best management practices in the upper Brazos River watershed, including management of invasive saltcedar <em>Tamarix </em>spp., seeks to improve habitat for fish and wildlife. Hydrological monitoring and modeling is being conducted to evaluate the potential for saltcedar control to improve base flows. Identification of stream reaches most threatened by drying and where aquifer pumping may reduce groundwater inflows to streams is the focus of ongoing research on groundwater–surface water relationships. Fish passage barriers hinder successful recruitment, migration, and recolonization of prairie fishes. Removal and mitigation of barriers, as appropriate, will be critical to restoring ecological functions and connectivity required for migratory fishes. Research on propagation and repatriation of prairie fishes is needed to inform conservation and recovery efforts. A watershed-scale, multidisciplinary approach coordinated across borders and among entities is critical to ensure conservation efforts result in the persistence of native fishes in the Great Plains, including the Brazos River.
Conference papers on the topic "Eight Streets Park"
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Charette, Francois, and Anthony Bennett. "The importance of the face plate as part of an engineered holistic ground support scheme in dynamic conditions." In Eighth International Conference on Deep and High Stress Mining. Australian Centre for Geomechanics, Perth, 2017. http://dx.doi.org/10.36487/acg_rep/1704_48_charette.
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Xue, Ming-De, Qing-Hai Du, Keh-Chih Hwang, and Zhi-Hai Xiang. "A Universal Design Method Based on Analysis for Cylindrical Shells With Nozzles Due to Internal Pressure, External Forces and Moments: Part II." In ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-78147.
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A universal design method for pressurized cylindrical shells with attached nozzles subjected to external forces (moments) and internal pressure are presented based on theoretical stress analysis. The applicable ranges of the presented design methods are extended to d/D≤0.9 and λ=d/(DT)1/2≤12. As a first step of design the required reinforcement thicknesses both of main shell and nozzle due to internal pressure can be determined by the presented theoretical solutions. When the junctions are subjected to external nozzle loads, the next step is to determine the absolute values of dimensionless longitudinal and circumferential, normal and shear, membrane and bending stresses in the main shell at the junction subjected to internal pressure and six external nozzle load components by reading out from a number of sets of curves calculated by the present theoretical method. Then the stress components at eight examination points are calculated and superposed for the combined loads. Finally the membrane and primary plus secondary stress intensities can be calculated, respectively, to meet the design criteria.
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Huh, Nam-Su, Do-Jun Shim, Yun-Jae Kim, and Young-Jin Kim. "Elastic-Plastic Fracture Mechanics Assessment of Test Data for Circumferential Cracked Pipes." In ASME 2003 Pressure Vessels and Piping Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/pvp2003-1992.
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This paper presents experimental validation of two reference stress based methods for circumferential cracked pipes. One is the R6 method where the reference stress is defined by the plastic limit load. The other is the enhanced reference stress method, recently proposed by the authors, where the reference stress is defined by the optimized reference load. Using thirty-eight published pipe test data, the predicted maximum instability loads according to both methods are compared with the experimental ones for pipes with circumferential through-thickness cracks and with part circumferential surface cracks. It is found that the R6 method gives conservative estimates of the maximum loads for all cases. Ratios of the experimental maximum load to the predicted load range from 0.54 to 0.98. On the other hand, the proposed method gives overall closer maximum loads than R6, compared to the experimental data. However, for part through-thickness surface cracks, the estimated loads were slightly non-conservative for four cases, and possible reasons were fully discussed.
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Oryniak, Andrii, Sergii Radchenko, and Igor Orynyak. "The Brittle Strength Assessment of WWER-1000 Reactor Pressure Vessel Nozzle With Cladding." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97561.
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Brittle strength calculation of RPV nozzle is the central point of the integrity assessment of the reactor pressure vessel when extending its life. The important part of this calculation is a determination of the stress intensity factor, SIF, for the postulated crack of partly elliptical form in a nozzle under inner pressure, bending moments (from the main circulating pipe) and difference of temperatures. In this paper we use method of influence functions as the most convenient one for solution of similar tasks. Eight basic laws of the crack surface loading are introduced which account for real stress distribution in the depth and length direction of a crack including the jump of stress between cladding and main metal due to the difference in the thermal expansion factors. To determine the dimensionless SIF under chosen laws of loading were developed the FEM models of nozzle with crack of different ratios of axes. For all possible modes (regimes) of operation were carried the detailed calculations of the temperature field in the nozzle, which were used later for determining the stress state at each time point. The stress field defined in 120 discrete points of the crack surface was treated by the method of least squares for the presention as a linear combination of eight basic load laws with defined coefficients. The procedure for determination of the temperature brittle strength margin which employs the presentation of critical values of SIF (fracture toughness) in the exponential function form is described.
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Perdikaris, Paris G., Lambros Kaiktsis, and George S. Triantafyllou. "Computational Study of Flow Structure and Forces on a Cylinder Vibrating Transversely and In-Line to a Steady Stream: Effects of Sub-Harmonic Forcing." In ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-78010.
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In this work, we present a computational study of the flow structure and forces on a cylinder vibrating both transversely and in-line to a uniform stream. The in-line frequency is equal to twice the transverse frequency, while the ratio of the in-line to the transverse oscillation amplitude varies from zero (transverse vibration only) to infinity (in-line oscillation only). For all intermediate values, the cylinder thus follows an “eight”-like of trajectory, emulating the motion of real cylindrical structures undergoing vortex-induced vibrations. For a flow from left to right, we distinguish between a “counter-clockwise” mode (if the upper part of the trajectory is traversed counter-clockwise) and a “clockwise” mode (if the upper part of the trajectory is traversed clockwise). Here, we use a spectral element method, and perform simulations for a Reynolds number of 400. We focus on a value of the transverse oscillation frequency equal to half the natural frequency of the Ka´rma´n vortex street (sub-harmonic excitation). Results are compared against cases corresponding to resonant forcing, previously studied by the research team. In all cases, the flow properties are greatly influenced by the direction in which the cylinder is traversed. In particular, the “counter-clockwise” mode is characterized by higher values of the forces acting on the cylinder, as well as by higher values of the power transfer from the flow to the cylinder. The case of sub-harmonic excitation is unique, in that the power transfer remains negative for all values of the non-dimensional excitation amplitude, i.e. corresponds to damping. Flow visualization reveals a variety of vortex patterns in the wake, in particular regular patterns at sub-harmonic excitation, and complex vortex streets at high amplitude resonant forcing.
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Rapp, S. C., J. E. Marr, F. H. Martinez, G. Vervake, and A. D. Batte. "Essential Elements of an Effective SCC Direct Assessment Program." In 2012 9th International Pipeline Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ipc2012-90238.
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Stress Corrosion Cracking (SCC) Direct Assessment in accordance with the guidance set out in NACE SP0204 is an accepted method for assessing the threat of SCC in High Consequence Areas in the US, as prescribed for gas transmission pipelines by CFR 192 Sub-part O. Although operators have used excavations as part of their integrity management strategies for SCC for many years, the formalized method for gathering, interpretation and application of information that is set out in NACE SP0204 has only been applied for less than ten years. During a recent Joint Industry Project involving eight major North American natural gas transmission operators, the current status and application of SCC Direct Assessment has been reviewed. Several of these operators have developed in-house procedures incorporating the relevant guidance from NACE, CEPA and ASME, and over 160 SCC Direct Assessment excavations in accordance with the requirements of NACE SP0204 have been undertaken during the last five years. This paper reviews the development of the procedures, their in-field application and the use of the interpreted data to further refine the SCC Direct Assessment processes.
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Gombert, Ralf, and Wolfgang Höhn. "Unsteady Aerodynamical Blade Row Interaction in a New Multistage Research Turbine: Part 1 — Experimental Investigation." In ASME Turbo Expo 2001: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/2001-gt-0306.
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Exploitation of stator–stator interaction phenomena can increase overall efficiency in axial turbomachines. The first part of this paper sets out to present results of steady and unsteady flow experiments obtained in a new three stage cold flow low pressure turbine. Observation and understanding of boundary layer development and transition phenomena on the vanes dependent on relative stator position will be the focal point. In addition to this, stator position influence on profile loss, turbine efficiency and the development of secondary flow are examined. The experiments were carried out in the closed circuit test bed of the Institute of Aeronautical Propulsion at Stuttgart University. Annulus geometry and blading design of the research turbine were taken from the low pressure turbine of a modern commercial jet engine. The three stage test rig had identical blade counts for all stators or rotors respectively, whilst the circumferential position of each stator row could be individually adjusted. The second and third stators were optimised with respect to the radial alignment of the vanes. Surface mounted hot film gauges on the vanes and hot film probes were employed to assess the unsteady interaction phenomena. For steady measurements, pneumatic five hole probes and multiple kielhead pressure and temperature probes were used. For both the second and third stator, circumferential position was varied in eight steps over one pitch. Whereas the design point forms the basis of this detailed investigation, some attention was also paid to variations in Reynolds number and wheel speed. The results, such as quasi wall shear stress, stochastic and periodic fluctuations, total pressure etc., are presented in the form of chordwise ensemble-averaged distributions and contour plots and should be compared with the corresponding numerical studies presented in the second part of this paper.
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Liszkai, Tama´s R., Norm S. Yee, Jim R. Smotrel, and Anne Demma. "Materials Aging Degradation of Reactor Vessel Internals: Part I — Thermal Hydraulics Evaluation." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61804.
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Pressurized water reactor (PWR) vessel internals components can experience material aging and degradation due to irradiation [1]. The Electric Power Research Institute (EPRI), under sponsorship of the Materials Reliability Program (MRP), is developing Reactor Internals Inspection and Evaluation (I&E) Guidelines mainly to support U.S. license renewed plants. These guidelines are organized around a framework and strategy, [3] and [4], for managing the effects of aging in PWR internals as shown in Figure 1, dependent on a substantial database of material data and supporting results. The key steps include the following: the development of screening criteria, with susceptibility levels for the eight postulated aging mechanisms relevant to reactor internals and their effects [5]; an initial component screening and categorization step, using the susceptibility levels to identify the relative susceptibility of the components; a functionality assessment of degradation for components and assemblies of components; and finally aging management strategy development combining the results of functionality assessment with component accessibility, operating experience, existing evaluations, and prior examination results to determine the appropriate aging management methodology, baseline examination timing, and the need and timing of subsequent inspections. The purpose of this functionality analysis is to provide a best estimate evaluation of the reactor internals core barrel assembly for materials degradation up to 60 years of operation. The stainless steel material model employed in the calculations is an irradiated material-specific constitutive model for use in a finite element analysis [8]. The material model accounts for the effects of plasticity, irradiation assisted stress corrosion cracking (IASCC), irradiation creep-stress relaxation, void swelling, and embrittlement as a function of temperature and fluence [6] and [7]. The study focuses on finding the integrated effects of material aging combined with steady-state operational characteristics of the reactor vessel (RV) internals. In order to evaluate the potential failure mechanisms of the core barrel assembly, detailed finite element models were developed capable of representing the complex interactions between the components. The goal of this study is to characterize the potential failure modes, spatial and chronological distribution of component failures for a representative model of the Babcock & Wilcox (B&W) designed plants. Evaluation of the reactor vessel internals for materials aging degradation involves three major physics fields. Radiation calculations of the core provide essential information on radiation dose and heat rates, due to gamma-heating, of the RV internals. The computational fluid dynamics domain (CFD) allows the evaluation of the RV internals temperatures through conjugate heat transfer (CHT) analysis coupled with coolant flow. Detailed structural analysis of the RV internals components and bolted connections is the third major physics field involved, which facilitates the development of operating stress fields within the RV internals. The three major physics fields and their relations are illustrated in Figure 2. This paper focuses on the CFD/CHT aspects of the overall analysis for the B&W designed RV internals and provides information on the state-of-the-art multi-physics approach employed.
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Parra-Santos, Teresa, Robert Z. Szasz, J. Rubén Pérez, Ville Vuorinen, and Francisco Castro. "Implicit LES Applied to Isothermal Swirling Coaxial Jets." In ASME 2016 Fluids Engineering Division Summer Meeting collocated with the ASME 2016 Heat Transfer Summer Conference and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/fedsm2016-7501.
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This work is devoted to the analysis of the interaction of two coaxial jet with swirling flow using Large Eddy Simulation methodology to reproduce the case of Roback and Johnson. The eight - flat - vanes in the annular nozzle are the precursor of the swirling annular jet with high swirl number. An implicit LES model was used, this model uses mesh size as filter width so no sub-grid model is required. It is the numerical error who plays the role of dissipative part of the stress tensor in the sub-mesh. Mesh prerequisites are Δy+ = 1 and uniform hexahedral mesh. The resolution scheme used is a Total Variation Diminishing (TVD) with coefficients looking for good precision. PISO is the pressure-velocity coupling used. Besides, multigrid resolution improves the performance towards the full convergence. Influence of the swirl number on the flow pattern is analyzed. Also the impact of conical diffuser on the mixing is presented.
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Santos, Auteliano A., Don E. Bray, Sidney F. Caetano, Marcilio Haddad Andrino, and Roseana E. Trevisan. "Evaluation of the Rolling Direction Effect in the Acoustoelastic Properties for API 5L X70 Steel Used in Pipelines." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-2819.
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Ultrasonic evaluation of stresses has experienced great development in the last decade, mostly because of the new electronic instruments and high-speed data acquisition systems now available. Past applications have been applied mostly using shear waves and the birefringence technique. Longitudinal critically refracted (skimming) waves have proved to be more sensitive to stress variation, and have been applied recently to oil steel pipelines. Oil pipe failures have caused a lot of environmental damage in Brazil. The environmental and economical costs are very high. This work describes part of a research effort to further apply longitudinal critically refracted waves to inspect the welded region in pipes in Brazil through a study of the acoustoelastic constants. Twenty-eight samples were cut from a flat plate of the oil industry class steel (API 5L X70) which would be typically formed into pipe. The samples were prepared for tensile testing. Half of those were cut from what would be the longitudinal direction of the pipe, and the other half from the perpendicular direction. The samples are bars of 760×70×10.8-mm3. Some bars were stress relieved before the test. The results show that there are significant differences between the acoustoelastic constants for the rolling direction and the perpendicular direction. It is clearly important to have the correct value for the acoustoelastic coefficient when applying the technique to stress measurement. There is a minor, but important influence of the stress relief process.
Reports on the topic "Eight Streets Park"
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Kumar, Indraneel, Lionel Beaulieu, Annie Cruz-Porter, Chun Song, Benjamin St. Germain, and Andrey Zhalnin. An Assessment of the Workforce and Occupations in the Highway, Street, and Bridge Construction Industries in Indiana. Purdue University, 2020. http://dx.doi.org/10.5703/1288284315018.
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This project explores workforce and occupations within the highway, street, and bridge construction industries (NAICS 237310) in Indiana. There are five specific deliverable comprised of three data reports, one policy document, and a website. The first data report includes an assessment of the workforce based on the eight-part framework, which are industry, occupations, job postings, hard-to-fill jobs, Classification of Instructional Programs (CIP), GAP Analysis, compatibility, and automation. The report defines a cluster followed by a detailed analysis of the occupations, skills, job postings, etc., in the NAICS 237310 industry in Indiana. The report makes use of specialized labor market databases, such as the Economic Modeling Specialists International (EMSI), CHMURA JobsEQ, etc. The analysis is based only on the jobs covered under the unemployment insurance or the Quarterly Census of Employment and Wages (QCEW) data. The second data report analyzes jobs to jobs flows to and from the construction industry in Indiana, with a particular emphasis on the Great Recession, by utilizing the Bureau of Labor Statistics (BLS) data. The third data report looks into the equal employment opportunity or Section 1391 and 1392 data for Indiana and analyzes specific characteristics of that data. The policy report includes a set of recommendations for workforce development for INDOT and a summary of the three data reports. The key data on occupations within the NAICS 237310 are provided in an interactive website. The website provides a data dashboard for individual INDOT Districts. The policy document recommends steps for development of the highways, streets and bridges construction workforce in INDOT Districts.