Relevant bibliographies by topics / PITU 2020

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  2. Dissertations / Theses
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  4. Book chapters
  5. Conference papers
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Academic literature on the topic 'PITU 2020'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 February 2022

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Journal articles on the topic "PITU 2020"

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Basir, Basran Nur, Muhammad Dassir, and Makkarennu Makkarennu. "Peran Struktur Sosial Masyarakat Sekitar Hutan Dalam Pengelolaan Hutan Kemasyarakatan di Desa Betao Riase." Jurnal Hutan dan Masyarakat 12, no. 1 (2020): 39. http://dx.doi.org/10.24259/jhm.v12i1.9210.

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Abstract:Struktur sosial merupakan suatu bangunan sosial yang terdiri dari unsur-unsur sosial yang saling berkaitan satu sama lain secara fungsional. Struktur sosial dianggap mampu menjaga kelestarian hutan dan kesehjatraan masyarakat melalui berbagai peran yang dilakukan oleh seseorang yang menempati kedudukan tertentu. Penelitian ini mengkaji tentang peranan struktur sosial masyarakat (Stratifikasi dan Diferensiasi) dalam kaitanya dengan pengelolaan Hutan kemasyarakatan di Desa Betao Riase. Tujuan dari penelitan ini untuk mendeskripsikan peran struktur sosial dalam setiap tahapan pengelolaan hutan kemasyarakatan di Desa Betao Riase. Penelitian ini dilaksanakan pada bulan Mei 2019 – Januari 2020 bertempat di Desa Beato Riase, Kecamatan Pitu Riawa Kabupaten Sidenreng Rappang. Proses pengambilan data dilakukan dengan melakukan wawancara dan diskusi dengan 30 sampel yang dipilih secara purposive sampling. Data hasil wawancara dan diskusi kemudian di analisis dengan mengunakan metode analisis deskriptif. Hasil penelitian menunjukkan faktor pembentuk stratifikasi sosial pada pengelolaan Hutan Kemasyarakatan di Betao Riase ditentukan oleh kemampuan ekonomi, kemampuan pendidikan, kekuasaan, dan kehormatan. Adapun peran yang dilaksankan pada setiap tahapan pengelolaan Hutan kemasyarakatan (penyususnan struktur organisasi, perencanaan, persiapan lahan, jenis tanaman dan pola tanam, penanaman dan pemeliharaan, pemanenan serta pemasaran dan bagi hasil) berupa bantuan pendidikan dan kesehatan, bantuan pengurusan administrasi, bantuan dana dan sumbangan yang ketiga hal ini biasa dilakukan oleh orang yang menempati kedudukan yang tinggi dan orang yang menempati kedudukan yang rendah hanya memberikan bantuan tenaga kerja. Pada pengelolan Hutan kemasyarakat dapat menjadi sosial kontrol untuk terciptanya kelestarian hutan dan juga berperan sebagai pendukung dari segi ekonomi dan material untuk kesejahtraan masyarakat.
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von der Embse, Nathaniel, Justin Barterian, and Natasha Segool. "Test Anxiety Interventions for Children and Adolescents: A Systematic Review of Treatment Studies from 2000-2010." Psychology in the Schools 50, no. 1 (2012): 57–71. http://dx.doi.org/10.1002/pits.21660.

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Stera, Giacomo, Luca Pierantoni, Riccardo Masetti, et al. "Impact of SARS-CoV-2 Pandemic on Bronchiolitis Hospitalizations: The Experience of an Italian Tertiary Center." Children 8, no. 7 (2021): 556. http://dx.doi.org/10.3390/children8070556.

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SARS-CoV-2 pandemic restrictions have deeply altered the common respiratory illnesses burden. The aim of this paper was to clarify how these measures may have influenced bronchiolitis epidemiology, exploring possible explanations. We studied 342 infants hospitalized for bronchiolitis at our center from four different epidemic seasons (October–April 2017–2018, 2018–2019, 2019–2020 and 2020–2021). March–April hospitalization rate, RSV (respiratory syncytial virus) infection, pediatric intensive care unit (PICU) admission and oxygen therapy administration data were compared among different seasons to outline any changes during the SARS-CoV-2 outbreak. In March–April, 30 (23.1%), 28 (24.6%) and 5 (5.1%) infants were hospitalized for bronchiolitis, respectively, in 2017–2018, 2018–2019 and 2019–2020, with a lower rate in March–April 2020 (p < 0.001). No hospitalizations for bronchiolitis occurred during the epidemic season of 2020–2021. No significant differences in RSV infections, oxygen therapy administration and PICU admissions across seasons were outlined. In conclusion, we report a severe decrease in hospitalizations for bronchiolitis at our center throughout the entire SARS-CoV-2 outbreak rather than only during the lockdown periods. This seems to suggest a pivotal role for the systematic implementation of cost-effective non-pharmaceutical interventions (NPIs) such as compulsory face masks and hand hygiene, which were deployed for the entire pandemic, in reducing the circulation of infectious agents.
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Kralj, Jelena, Miloš Martinović, Tomica Rubinić, Davor Krnjeta, and Luka Jurinović. "Dynamics of Common Sterna hirundo and Little Tern Sternula albifrons populations along the Sava River in North-western Croatia between 2002 and 2019." Acrocephalus 40, no. 180-181 (2019): 49–54. http://dx.doi.org/10.1515/acro-2019-0002.

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AbstractBetween 2002 and 2019, monitoring of Common Tern Sterna hirundo and Little Tern Sternula albifrons along the Sava River near Zagreb, Croatia was conducted. Natura 2000 site “Sava kod Hrušćice” was designated to protect colony at river islands, with estimated population sizes of 100–150 pairs of Common and 20 pairs of the Little Tern. Flooding of the colony caused breeding failure in several years. Common Terns moved to breed on islands in gravel pits with a total population around 150 pairs, while Little Tern did not breed after 2010. In the last few years, terns have not bred at Hrušćica and the only colony inside the Natura 2000 site is situated on a breeding platform at Siromaja gravel pit. Channelling of rivers and hydropower plants are the main threats, changing natural dynamics of water level and causing reduction of gravel sediment in rivers.
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Lauring, Adam S., Maria M. Anderson, and Julie Overbaugh. "Specificity in Receptor Usage by T-Cell-Tropic Feline Leukemia Viruses: Implications for the In Vivo Tropism of Immunodeficiency-Inducing Variants." Journal of Virology 75, no. 19 (2001): 8888–98. http://dx.doi.org/10.1128/jvi.75.19.8888-8898.2001.

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ABSTRACT Cytopathic, T-cell-tropic feline leukemia viruses (FeLV-T) evolve from FeLV-A in infected animals and demonstrate host cell specificities that are distinct from those of their parent viruses. We recently identified two cellular proteins, FeLIX and Pit1, required for productive infection by these immunodeficiency-inducing FeLV-T variants (M. M. Anderson, A. S. Lauring, C. C. Burns, and J. Overbaugh, Science 287:1828–1830, 2000). FeLV-T is the first example of a naturally occurring type C retrovirus that requires two proteins to gain entry into target cells. FeLIX is an endogenous protein that is highly related to the N-terminal portion of the FeLV envelope protein, which includes the receptor-binding domain. Pit1 is a multiple-transmembrane phosphate transport protein that also functions as a receptor for FeLV-B. The FeLV-B envelope gene is derived by recombination with endogenous FeLV-like sequences, and its product can functionally substitute for FeLIX in facilitating entry through the Pit1 receptor. In the present study, we tested other retrovirus envelope surface units (SUs) with their cognate receptors to determine whether they also could mediate infection by FeLV-T. Cells were engineered to coexpress the transmembrane form of the envelope proteins and their cognate receptors, or SU protein was added as a soluble protein to cells expressing the receptor. Of the FeLV, murine leukemia virus, and gibbon ape leukemia virus envelopes tested, we found that only those with receptor-binding domains derived from endogenous FeLV could render cells permissive for FeLV-T. We also found that there is a strong preference for Pit1 as the transmembrane receptor. Specifically, FeLV-B SUs could efficiently mediate infection of cells expressing the Pit1 receptor but could only inefficiently mediate infection of cells expressing the Pit2 receptor, even though these SUs are able to bind to Pit2. Expression analysis of feline Pit1 and FeLIX suggests that FeLIX is likely the primary determinant of FeLV-T tropism. These results are discussed in terms of current models for retrovirus entry and the interrelationship among FeLV variants that evolve in vivo.
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Isdiyanto, Ilham Yuli, and Deslaely Putranti. "Perlindungan Hukum atas Ekspresi Budaya Tradisional dan Eksistensi Masyarakat Hukum Adat Kampung Pitu." Jurnal Ilmiah Kebijakan Hukum 15, no. 2 (2021): 231. http://dx.doi.org/10.30641/kebijakan.2021.v15.231-256.

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Masyarakat Kampung Pitu masih memegang tradisi dan budaya asal usulnya hingga sekarang, bahkan jumlah Kepala Keluarga yang tidak boleh lebih dari 7 (tujuh) juga masih bertahan hingga sekarang. Sebagai masyarakat tradisional yang khas, masyarakat Kampung Pitu memiliki berbagai macam bentuk Ekspresi Budaya Tradisional (EBT) yang disisi lain hal ini perlu mendapatkan perhatian serius oleh pemerintah. Regulasi di Indonesia mengatur perlindungan EBT melalui UU No. 28/2014 tentang Hak Cipta, sehingga dapat menjadi perlindungan EBT masyarakat Kampung Pitu agar tetap lestari. Penelitian ini menjadi sangat penting karena tidak banyak masyarakat tradisional yang mempertahankan hak asal-usulnya di wilayah Daerah Istimewa Yogyakarta. Penelitian ini menggunakan pendekatan yuridis-normatif dan pengumpulan data baik primer maupun sekunder yang diperoleh secara daring serta analisa deskriptif-kualitatif. Hasilnya, masyarakat Kampung Pitu dapat dikategorikan sebagai Masyarakat Hukum Adat yang memiliki hak identitas dan tradisional atas asal-usulnya sehingga harus dilindungi dalam pelestariannya. Walaupun tidak ada regulasi ataupun penetapan dari tingkat Pusat sampai Daerah terkait Kampung Pitu, namun Kampung Pitu sudah ditetapkan sebagai Warisan Budaya Takbenda sehingga menjadi dasar perlindungan.
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Atay, Gurkan, Canan Hasbal, Mücahit Türk, Seher Erdoğan, and Betül Sözeri. "The Role of Therapeutic Plasma Exchange (TPE) in Multisystem Inflammatory Syndrome in Children (MIS-C)." Children 8, no. 6 (2021): 498. http://dx.doi.org/10.3390/children8060498.

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Multisystemic inflammatory syndrome in children (MIS-C) is a new potentially life-threatening disease that is related to coronavirus disease 2019 (COVID-19). The aim of this study is to reveal the clinical and laboratory results of MIS-C and the role of therapeutic plasma exchange (TPE) in its treatment. Clinical, laboratory and radiological characteristics of the patients who were admitted to the pediatric ward and pediatric intensive care unit (PICU) of a tertiary hospital with a diagnosis of MIS-C between April 2020 and March 2021 were included in the study. Forty-one patients were admitted to our hospital with a diagnosis of MIS-C. Twenty-one (51.2%) patients were admitted to the PICU. Six patients needed invasive mechanical ventilation (14.6%), 10 patients (24.4%) TPE and 3 patients (7.3%) needed extracorporeal membrane oxygenation (ECMO). The patients were grouped according to need for PICU admission (Group 1: no need for PICU, Group 2: need for PICU admission). Group 2 had significantly higher levels of C-reactive protein (CRP), alanine aminotransferase (ALT), ferritin, D-dimer, pro-B type natriuretic peptide (pro BNP) and lactate (p < 0.05). Hyponatremia found to be an independent risk factor for inpatient MIS-C in the PICU. We think that dynamic laboratory trending is beneficial in determining the need for PICU admission and TPE may be effective in critically ill patients.
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Comoretto, Rosanna, Danila Azzolina, Angela Amigoni, et al. "Predicting Hemodynamic Failure Development in PICU Using Machine Learning Techniques." Diagnostics 11, no. 7 (2021): 1299. http://dx.doi.org/10.3390/diagnostics11071299.

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The present work aims to identify the predictors of hemodynamic failure (HF) developed during pediatric intensive care unit (PICU) stay testing a set of machine learning techniques (MLTs), comparing their ability to predict the outcome of interest. The study involved patients admitted to PICUs between 2010 and 2020. Data were extracted from the Italian Network of Pediatric Intensive Care Units (TIPNet) registry. The algorithms considered were generalized linear model (GLM), recursive partition tree (RPART), random forest (RF), neural networks models, and extreme gradient boosting (XGB). Since the outcome is rare, upsampling and downsampling algorithms have been applied for imbalance control. For each approach, the main performance measures were reported. Among an overall sample of 29,494 subjects, only 399 developed HF during the PICU stay. The median age was about two years, and the male gender was the most prevalent. The XGB algorithm outperformed other MLTs in predicting HF development, with a median ROC measure of 0.780 (IQR 0.770–0.793). PIM 3, age, and base excess were found to be the strongest predictors of outcome. The present work provides insights for the prediction of HF development during PICU stay using machine-learning algorithms.
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Boeschoten, Shelley A., Annemie L. Boehmer, Peter J. Merkus, et al. "Risk factors for intensive care admission in children with severe acute asthma in the Netherlands: a prospective multicentre study." ERJ Open Research 6, no. 3 (2020): 00126–2020. http://dx.doi.org/10.1183/23120541.00126-2020.

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RationaleSevere acute asthma (SAA) can be fatal, but is often preventable. We previously observed in a retrospective cohort study, a three-fold increase in SAA paediatric intensive care (PICU) admissions between 2003 and 2013 in the Netherlands, with a significant increase during those years of numbers of children without treatment of inhaled corticosteroids (ICS).ObjectivesTo determine whether steroid-naïve children are at higher risk of PICU admission among those hospitalised for SAA. Furthermore, we included the secondary risk factors tobacco smoke exposure, allergic sensitisation, previous admissions and viral infections.MethodsA prospective, nationwide multicentre study of children with SAA (2–18 years) admitted to all Dutch PICUs and four general wards between 2016 and 2018. Potential risk factors for PICU admission were assessed using logistic regression analyses.Measurements and main results110 PICU and 111 general ward patients were included. The proportion of steroid-naïve children did not differ significantly between PICU and ward patients. PICU children were significantly older and more exposed to tobacco smoke, with symptoms >1 week prior to admission. Viral susceptibility was not a significant risk factor for PICU admission.ConclusionsChildren with SAA admitted to a PICU were comparable to those admitted to a general ward with respect to ICS treatment prior to admission. Preventable risk factors for PICU admission were >7 days of symptoms without adjustment of therapy and exposure to tobacco smoke. Physicians who treat children with asthma must be aware of these risk factors.
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Sikame Tagne, N. R., T. E. Mbou, O. Harzallah, et al. "Physicochemical and Mechanical Characterization of Raffia vinifera Pith." Advances in Materials Science and Engineering 2020 (December 16, 2020): 1–10. http://dx.doi.org/10.1155/2020/8895913.

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In this paper, the physicochemical and mechanical properties of Raffia vinifera pith (RVP) are discussed. Microscopic observations have shown that the structure of the RVP is similar to that of a composite consisting of natural fibers. The effective area ratio of Raffia vinifera (RV) fibers was evaluated along the raffia stem using ImageJ software, and it decreases from the periphery to the center. Energy dispersion spectrometer (EDS) analysis shows that RVP is essentially composed of carbon and oxygen. Densities of RVP and its matrix were determined using Archimedes’ principle and law of mixtures, respectively; from the results obtained, they can be considered as one of the lightest materials. Young’s modulus of RVP has been obtained from tensile and bending tests, while that of matrix has been obtained using the law of mixtures during tensile tests. RVP has better specific properties, and the results of the matrix properties show that we can easily select another matrix which has better properties than the case studied during the elaboration of composites.
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Dissertations / Theses on the topic "PITU 2020"

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Pereira, Juliana Regina Salles. "O transporte público como agente do crescimento e da estruturação urbana: análise dos planos PITU 2020 e PITU 2025." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/16/16133/tde-15052013-132415/.

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A infraestrutura de transportes teve papel fundamental no crescimento urbano de São Paulo, determinando sua ocupação urbana e seus eixos de expansão. O presente trabalho parte de um embasamento histórico que aborda o início do desenvolvimento urbano de São Paulo, com a implantação de ferrovias e bondes em meados do século 19 e início do século 20, e a estruturação e intenso crescimento urbano da cidade com a ascensão do ônibus e do automóvel, principalmente a partir dos anos 1950 e 1960. Esta disputa entre modais é um dos fatores que colaborou para a atual crise de mobilidade na cidade, e é também tema recorrente nas iniciativas do planejamento urbano e de transportes realizadas a partir dos anos 2000, como os planos PITU 2020 e PITU 2025. A análise destes planos tem como objetivo resgatar a importância do sistema sobre trilhos para o desenvolvimento conjunto da Região Metropolitana de São Paulo, e analisar a articulação entre as políticas públicas de uso e ocupação do solo e o planejamento de transporte.<br>Transport infrastructure played a key role in the urban growth of São Paulo, determining its urban occupation and its expansion axes. This work starts with a historical foundation that approaches the early history of urban development of São Paulo, with the introduction of railroads and trams in the mid-19th century and early 20th century, and the structuring and intense urban growth of the city with the rise of the automobile and bus transportation mainly from the 1950s and 1960s. This dispute between transportation modes is one of the factors that contributed to the current mobility crisis in the city, and is also a recurring theme in the initiatives of the urban and transportation planning performed from the years 2000 as in the PITU 2020 and PITU 2025 plans. The analysis of these plans aims to restore the importance of the rail system for the joint development of the Metropolitan Region of São Paulo, and analyze the relation between land use public policy and transport planning.
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Chung, Yun-Suk Shahrour Isam. "Etude numérique de l'interaction sol-pieu-structure sous chargement sismique." [S.l.] : [s.n.], 2000. http://www.univ-lille1.fr/bustl-grisemine/pdf/extheses/50376-2000-318-319.pdf.

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N??ez, Brenda Nury da Costa. "Diversidade e distribui??o da termitofauna no ec?tone cerrado/caatinga no sul do Piau? frente ? expans?o agr?cola. 2010." Universidade Federal Rural do Rio de Janeiro, 2010. https://tede.ufrrj.br/jspui/handle/tede/495.

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Made available in DSpace on 2016-04-28T14:57:33Z (GMT). No. of bitstreams: 1 Brenda Nury da Costa Nunez.pdf: 4336690 bytes, checksum: 046530796e88eee7c7743614a28a287a (MD5) Previous issue date: 2010-08-19<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>The southern region of Piaui state is inserted in a region that since 90s, is considered one of the last agricultural frontiers of Brazil, this process has intensified through the implementation of large projects to the production of grains, with the flagship soybeans, export-oriented. In general, monocultures are always related to pests, because they increase the supply of food, benefiting some groups of organisms. The termites are considered a pest of major problem in urban, suburban and rural areas, but this status can only be used for a few species. They occur in tropical and temperate areas, and worldwide there are about 2.800 described species, and about 300 of them are distributed in Brazil in four families: Kalotermitidae, Rhinotermitidae, Termitidae and Serritermitidae. In this context, this study aimed to determine the distribution and diversity of termites in the ecotone cerrado/caatinga of the southern region of the Piaui state, Brazil, in areas of natural vegetation and areas modified by agriculture. The termites were collected actively from November, 2009 to February, 2010, throughout the transects of an area of a hectare in preserved vegetation and soybean monocultures, evaluating the architecture of epigean nests, distribution, volume, food groups, associated fauna, dominance, association with the vegetation and edaphic profile of sampled areas. In the caatting of the south of Piaui, all termites collected in the preserved vegetation area, belong to a single family (Termitidae), and 10 species were identified: Armitermes sp., Constrictotermes cyphergaster Silvestri, Inquilinitermes fur (Silvestri), Inquilinitermes microcerus (Silvestri), Labiotermes longilabius (Silvestri), Nasutitermes sp1., Nasutitemes sp2., Spinitermes sp., Syntermes wheeleri Emerson and Syntermes molestus Burmeister. C. cyphergaster (42%), Nasutitermes sp1. (30%), S. wheeleri (25%) were classified as eudominants based on the total number of nests sampled (n = 57). In the nests of S. wheeleri, it was verified the presence of five orders of arthropods (Araneae, Scorpions, Coleoptera, Orthoptera and Isoptera) associated. Nasutitermes sp1. presented nesting only in the arboreous plants: canela-de-velho (Cenostigma macrophyllum, Caesapinioideae). In the cerrado of the south of Piaui, only two termite species were found in the soybean monoculture areas: Coptotermes sp. and Cornitermes silvestrii Emerson. Coptotermes sp. was found attacking trees of Eucalyptus sp. and C. silvestrii in soybean areas. The present study demonstrates that the termite fauna in this ecotone runs risk of being reduced due to the destruction of its natural habitat after the implementation of monocultures, or of selecting more able species to become pests because of the decrease of its natural enemies and of the introduction of botanical species suitable for their establishment. Key words: Isoptera, termites, monoculture, hypoxerophytic caatinga<br>O sul do estado o Piau? est? inserido em uma regi?o que desde a d?cada de 1990, ? considerada uma das ?ltimas fronteiras agr?colas do Brasil, esse processo intensificou-se por meio de implementa??o de grandes projetos para a produ??o de gr?os, tendo como carro chefe a soja, voltada para a exporta??o. De um modo geral, as monoculturas est?o sempre relacionadas a pragas, pois aumentam a oferta de alimento, beneficiando alguns grupos de organismos. Os t?rmitas ou cupins s?o considerados uma das pragas de maior problema em ?reas urbanas, suburbanas e rurais, contudo este status s? pode ser empregado a poucas esp?cies. Eles ocorrem nas ?reas tropicais e temperadas, e em todo o mundo existem cerca de 2.800 esp?cies descritas, sendo destas aproximadamente 300 est?o distribu?das no Brasil em quatro fam?lias: Kalotermitidae, Rhinotermitidae, Serritermitidae e Termitidae. Dentro deste contexto, o presente estudo teve como objetivo de determinar a distribui??o e a diversidade de t?rmitas no ec?tone cerrado/caatinga na regi?o sul do estado do Piau? em ?rea de vegeta??o natural e em ?reas modificadas pela agricultura. Foi realizada no per?odo de novembro de 2009 a fevereiro de 2010, a coleta ativa de cupins em transectos de ?rea de um hectare, em ?rea de vegeta??o preservada e monoculturas de soja, avaliando-se tamb?m a arquitetura dos ninhos ep?geos, distribui??o, volume, grupos alimentares, fauna associada, domin?ncia, associa??o com a vegeta??o e o perfil ed?fico das ?reas de coleta. Na caatinga do sul do Piau?, observou-se que todos os cupins coletados na ?rea de vegeta??o preservada pertenceram a uma ?nica fam?lia (Termitidae), sendo 10 esp?cies identificadas: Armitermes sp., Constrictotermes cyphergaster Silvestri, Inquilinitermes fur (Silvestri), Inquilinitermes microcerus (Silvestri), Labiotermes longilabius (Silvestri), Nasutitermes sp1., Nasutitemes sp2., Spinitermes sp., Syntermes wheeleri Emerson e Syntermes molestus Burmeister. C. cyphergaster (42%), Nasutitermes sp1. (30%) e S. wheeleri (25%) foram classificadas como eudominantes, com base no n?mero total de ninhos amostrados (n = 57). Nos ninhos de S. wheeleri, verificou-se a presen?a de cinco ordens de artr?podes (Aranae, Escorpiones, Coleoptera, Orthoptera e Isoptera) associadas. Nasutitermes sp1. apresentou nidifica??o somente em plantas arb?reas, ou seja, na canela-de-velho (Cenostigma macrophyllum, Caesapinioideae). No cerrado do sul do Piau?, apenas duas esp?cies de cupins foram encontradas ?rea de monocultura de soja: Coptotermes sp. e Cornitermes silvestrii Emerson. Coptotermes sp. foi encontrada atacando ?rvores de Eucalyptus sp. e C. silvestrii em ?rea de plantio de soja. O presente estudo demonstra que a fauna de t?rmitas neste ec?tone corre risco de ser reduzida devido ? destrui??o de seu habitat natural decorrente da implementa??o de monoculturas, ou, de selecionar esp?cies mais aptas a ser tornarem pragas diante da diminui??o de seus inimigos naturais e da introdu??o de esp?cies bot?nicas ideais para seu estabelecimento.
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Hogan, Kevin. "The pit, the field and the edifice : a rhetorical analysis of the commemorative 9/11 Ceremonies of September 11, 2002." Scholarly Commons, 2006. https://scholarlycommons.pacific.edu/uop_etds/642.

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This thesis analyzes the eulogistic and ideological rhetoric generated by the commemoration ceremonies recognizing the first anniversary of the events of September 11, 2001. By evaluating these ceremonies generically through a set of established epideictic criteria, a comparison and contrast of form and style in relation to their varying situations and rhetorical constraints was achieved. The intentional introduction of deliberative aspects to epideictic rhetoric was also a focus of this study in an attempt to discern the ideological frameworks employed by the various rhetors responsible for the content of the day's events. By analyzing the tokens and ideographs embedded in the rhetoric of the commemorative speakers, the ideological purposes of the planners and rhetors of the ceremonies were revealed. As a nationally televised, ceremonial event, the 9/11 commemoration failed. The mixed messages contained in the eulogies and the lack of a planned rhetorical strategy resulted in an emotionally engaging but fragmented exercise in public discourse.
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Hild, Pitt [Verfasser], Ilka [Akademischer Betreuer] Parchmann, and Susanne [Gutachter] Metzger. "Problemtypenbasierte Kompetenzmodellierung beim praktisch-naturwissenschaftlichen Arbeiten : Design, Validierung und Einsatz von Aufgaben zum effektbasierten Vergleichen / Pitt Hild ; Gutachter: Susanne Metzger ; Betreuer: Ilka Parchmann." Kiel : Universitätsbibliothek Kiel, 2020. http://nbn-resolving.de/urn:nbn:de:gbv:8:3-2021-00289-2.

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Bußar, Christian Verfasser], Dirk Uwe [Akademischer Betreuer] [Sauer, and Robert [Akademischer Betreuer] Pitz-Paal. "Investigation of optimal transformation pathways towards 2050 for the successful implementation of a sustainable reduction of carbon emissions from power generation / Christian Bußar ; Dirk Uwe Sauer, Robert Pitz-Paal." Aachen : Universitätsbibliothek der RWTH Aachen, 2019. http://d-nb.info/1211557901/34.

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Bußar, Christian [Verfasser], Dirk Uwe [Akademischer Betreuer] Sauer, and Robert [Akademischer Betreuer] Pitz-Paal. "Investigation of optimal transformation pathways towards 2050 for the successful implementation of a sustainable reduction of carbon emissions from power generation / Christian Bußar ; Dirk Uwe Sauer, Robert Pitz-Paal." Aachen : Universitätsbibliothek der RWTH Aachen, 2019. http://d-nb.info/1211557901/34.

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Cruz, Maurício Feijó. "Condicionantes metropolitanos para políticas públicas: análise dos transportes coletivos na região metropolitana de São Paulo (1999-2009)." reponame:Repositório Institucional do FGV, 2010. http://hdl.handle.net/10438/5175.

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Made available in DSpace on 2010-04-20T20:17:05Z (GMT). No. of bitstreams: 1 62080100007.pdf: 5131514 bytes, checksum: c7660a9fd1fb9d1280dda3ea8c24af8b (MD5) Previous issue date: 2010-02-25T00:00:00Z<br>A pesquisa analisa questões pertinentes a políticas públicas de planejamento urbano em escala metropolitana, especificamente no âmbito dos transportes coletivos da Região Metropolitana de São Paulo, à luz da Administração Pública, da Ciência Política e do Urbanismo. Por meio de uma revisão dos processos de formulação de alternativas e de definição de agenda governamental relativos aos transportes metropolitanos em São Paulo na primeira década do século XXI, compreende-se um conjunto de condicionantes metropolitanos para políticas públicas relevantes à proposição e implementação de políticas metropolitanas: as diferentes escalas dos problemas, a necessidade de articulação institucional e intergovernamental e a complexidade de relações urbanas e regionais. São destacados na análise os valores e aspectos técnicos de planejamento de transporte e do urbanismo, os atributos físicos, funcionais, econômicos e sociais das metrópoles contemporâneas, a importância da esfera política e partidária, a necessidade de cooperação federativa e a conjugação de questões locais, regionais e globais. Analisa-se o Programa Expansão SP como uma política associada a uma policy window para transportes coletivos de massa na metrópole paulistana, vinculado ao Plano Integrado de Transporte Urbano para 2025 (PITU 2025).
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Mushongahande, Emmanuel. "Economic viability of K04 open pit mineral resource to ameliorate production hiatus in 2019 and 2022." Thesis, 2019. https://hdl.handle.net/10539/28948.

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A research report submitted to the Faculty of Engineering and the Built Environment, University of the Witwatersrand, in partial fulfillment of the requirements for the degree of Masters in Engineering<br>Venetia Mine is the largest diamond mine for the De Beers Group of Companies (DBGC) in South Africa contributing approximately 80% of revenue for the company. The Venetia Kimberlite Cluster (VKC) comprises of 13 pipes and one dyke, of these K01, K02, and K03 are mined productively while the satellite bodies that are intersected during waste stripping and push backs are stockpiled separately. The current open pit operation will come to an end in 2022, whereupon the K01 and K02 ore bodies will be mined from underground. Shaft sinking and development of underground infrastructure is underway, and it is envisaged that the change over from open pit to underground will be effected in 2022. There are two challenges facing the company that may result in a production hiatus in 2019 and 2022. The first challenge relates to failure to open kimberlite ore in the Cut4 south push back by 2019 and the second one is failure to seamlessly change from open pit to underground in 2022 when the open pit reaches its Life of Mine (LoM). The backlog of waste stripping in the Cut4 south and technical challenges faced in the implementation and execution of the Canadian Shaft Sinking method at Venetia Mine have both pointed to periods where there will be less ore mined thus resulting in less carats recovered. In order to cushion for these scenarios, the economic viability of K04 satellite pipe was investigated by conducting a Whittle optimum pit selection of the pipe to mine the ore. This was previously excluded by the current pit design. The strategy for K04 optimum pit selection was based on net present value (NPV), revenue factors, stripping ratios, and the life of the mine. This strategy was employed when analysing 13 pits from scenario 2. The selection process identified pit 9 as an optimum pit. It must be noted that this pit inventory does not add significant numbers of carats to the overall carat profile to lift the valley of despair in 2019 and 2022 but will contribute some NPV of ZAR13.2 million over a period of 6 years. K04 project will contribute 402 thousand carats against 1.5 million carats required to fill the hiatus gap, hence does not support a sound business case for Venetia Mine. It is therefore recommended that DBCM deploy a different strategy to reduce the impact of the carat shortfall in 2019 and 2022. Some recommendations include reducing mining activities in the north of the pit and focus more on accelerating waste stripping in the south in order to expose ore sooner. Cost saving initiatives such as reducing operating costs and postponing some capital projects that are deemed not urgent will go a long way in the reducing the financial impact in 2019 and 2022.<br>MT 2020
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King, William G. Jr. "Critical corrosion pit depth for fatigue crack initiation in 2024-T3, 6061-T6 and 7075-T6 aluminum alloys /." 2006. http://digital.library.okstate.edu/etd/umi-okstate-2049.pdf.

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Books on the topic "PITU 2020"

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Pittman, Nancy. Pitt County Family Researchers: Surnames 2000. Pitt County Family Researchers, 2000.

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Víllora, Jesús Gabaldón. Y después de la boda-- Alicante: Enlace martimonial Ana - Pitu, 30 abril 2000. J. Gabaldón Víllora, 2000.

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Mahakam Sinlapakam Wan Sin Phīrasī (2010 Hō̜sinlapa, Mahāwitthayālai Sinlapākō̜n). Piti: Mahakam Sinlapakam Wan Sin Phīrasī = Gladness : Thai Contemporary Art Exposition 2010 on an occasion of Silpa Bhirasi Day. Art Centre, Silpakorn University, 2010.

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Division, San Francisco (Calif ). Office of the Controller City Services Auditor. Board of Supervisors: A review of Comcast Corporation's franchise fee payments, July 1, 2000, through December 31, 2002. Office of the Controller, 2004.

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São Paulo (Brazil : State). Secretaria de Estado dos Transportes Metropolitanos., ed. Pitu 2020: Plano Integrado de Transportes Urbanos. Secretaria de Estado dos Transportes Metropolitanos, 1999.

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São Paulo (Brazil : State). Secretaria de Estado dos Transportes Metropolitanos., ed. Pitu 2020: Plano Integrado de Transportes Urbanos : síntese. 3rd ed. Governo do Estado de São Paulo, Secretaria de Estado dos Transportes Metropolitanos, 2005.

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Visões da metrópole: Depoimentos sobre transporte e urbanismo para o PITU RMSP 2025. Governo do Estado de São Paulo, Secretaria de Estado dos Transportes Metropolitanos, 2006.

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Still Fighting: The Nicaraguan Women's Movement, 1977-2000 (Pitt Latin American Series). University of Pittsburgh Press, 2001.

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Still Fighting: The Nicaraguan Women's Movement, 1977-2000 (Pitt Latin American Studies). University of Pittsburgh Press, 2001.

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Trent, James. Inventing the Feeble Mind. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199396184.001.0001.

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Pity, disgust, fear, cure, and prevention—all are words that Americans have used to make sense of what today we call intellectual disability. Inventing the Feeble Mind explores the history of this disability in the United States from its several identifications over the past 200 years—idiocy, imbecility, feeblemindedness, mental defect, mental deficiency, mental retardation, and most recently intellectual disability. Using institutional records, private correspondence, personal memories, and rare photographs, James Trent argues that the economic vulnerability of intellectually disabled people (and often their families), more than the claims made for their intellectual and social limitations, has shaped meaning, services, and policies in United States history.
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Book chapters on the topic "PITU 2020"

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Chen, Zhiming, Kean Chen, Weiyao Lin, et al. "PIoU Loss: Towards Accurate Oriented Object Detection in Complex Environments." In Computer Vision – ECCV 2020. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58558-7_12.

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Brázda, Radim. "Jan, jídlo a pití." In Filosofie jako životní cesta. Masaryk University Press, 2019. http://dx.doi.org/10.5817/cz.muni.p210-9458-2019-16.

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The contribution summarizes Jan Zouhar’s lectures in the series of light-hearted conferences titled Food, Drink and European Culture, which he gave in 2002–2019. Using examples and references, it places their themes into the context of philosophy of food, known as gastrosophy.
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Liang, Liang, Hongying Shen, Pietro De Camilli, and James S. Duncan. "Tracking Clathrin Coated Pits with a Multiple Hypothesis Based Method." In Medical Image Computing and Computer-Assisted Intervention – MICCAI 2010. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-15745-5_39.

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Khafagy, Khaled H., Tarek M. Hatem, and Salah M. Bedair. "Dislocation-Based Thermodynamic Models of V-Pits Formation and Strain Relaxation in InGaN/GaN Epilayers on Si Substrates." In TMS 2020 149th Annual Meeting & Exhibition Supplemental Proceedings. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36296-6_188.

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Germain, Aurèle, Marta Corno, and Piero Ugliengo. "Computing Binding Energies of Interstellar Molecules by Semiempirical Quantum Methods: Comparison Between DFT and GFN2 on Crystalline Ice." In Computational Science and Its Applications – ICCSA 2021. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-86976-2_43.

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AbstractInterstellar Grains (IGs) spread in the Interstellar Medium (ISM) host a multitude of chemical reactions that could lead to the production of interstellar Complex Organic Molecules (iCOMs), relevant in the context of prebiotic chemistry. These IGs are composed of a silicate-based core covered by several layers of amorphous water ice, known as a grain mantle. Molecules from the ISM gas-phase can be adsorbed at the grain surfaces, diffuse and react to give iCOMs and ultimately desorbed back to the gas phase. Thus, the study of the Binding Energy (BE) of these molecules at the water ice grain surface is important to understand the molecular composition of the ISM and its evolution in time. In this paper, we propose to use a recently developed semiempirical quantum approach, named GFN-xTB, and more precisely the GFN2 method, to compute the BE of several molecular species at the crystalline water ice slab model. This method is very cheap in term of computing power and time and was already showed in a previous work to be very accurate with small water clusters. To support our proposition, we decided to use, as a benchmark, the recent work published by some of us in which a crystalline model of proton-ordered water ice (P-ice) was adopted to predict the BEs of 21 molecules relevant in the ISM. The relatively good results obtained confirm GFN2 as the method of choice to model adsorption processes occurring at the icy grains in the ISM. The only notable exception was for the CO molecule, in which both structure and BE are badly predicted by GFN2, a real pity due to the relevance of CO in astrochemistry.
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"Pitou Formation." In Geological Formation Names of China (1866–2000). Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-93824-8_6097.

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Underwood, James. "‘Pit Closure as Art’." In British Literature in Transition, 1980–2000. Cambridge University Press, 2018. http://dx.doi.org/10.1017/9781316344071.013.

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Yedygenov, Ye K. "New type of transport for deep open pits." In Mine Planning and Equipment Selection 2000. Routledge, 2018. http://dx.doi.org/10.1201/9780203747124-144.

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Pereira, Tiago, and Vanessa Filipe. "Expansão urbana da vila de Cascais no século XVII e XVIII: a intervenção arqueológica na Rua da Vitória nº 15 a 17." In Arqueologia em Portugal 2020 - Estado da Questão - Textos. Associação dos Arqueólogos Portugueses e CITCEM, 2020. http://dx.doi.org/10.21747/978-989-8970-25-1/arqa147.

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The archaeological intervention at Rua da Vitória 15-17, Cascais, was motivated by an urban rehabilitation project for a buldind located nearby the center of the village. The original bulding foundation date from late 17th century and 18th century, above a series of deposits containing ceramics, fauna, glass and metals as a result of landfill of domestic waste. Between these deposits we registered several small pits used as household waste disposal. The previous occupation in this area corresponds to a minor agricultural production from 15th or 16th century probably a small vineyard field. We report were evidence of the urban expansion of ancient village of Cascais occurred since 16th century, and the development of urban area to open areas of landfill.
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Carita, Rui, Rosa Varela Gomes, Mário Varela Gomes, and Kamyar Kamyad. "A antiga fortificação de Quelba /Khor Kalba (E.A.U.). Resultados de quatro campanhas de escavações, problemáticas e perspectivas futuras." In Arqueologia em Portugal 2020 - Estado da Questão - Textos. Associação dos Arqueólogos Portugueses e CITCEM, 2020. http://dx.doi.org/10.21747/978-989-8970-25-1/arqa157.

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Four brief archaeological digging campaigns, taking place from 2017 to 2020, lead to the identification of the old Quelba/Khor Kalba (Sharjah Emirate) fortress remains, on the Oman Gulf coast, where the Portuguese, under the Gaspar Leite command, took in 1624 and they stayed about two decades. The fortress was built with mud walls, only partially laying on stone foundations, with quadrangular shape plan, measuring 50 m each side, and was protected, at least, on the two corners turned to the see, by circular plan towers. Inside the fortification walls we have found living floors made with gypsum and sand, house postholes, ovens, fire places, dirt pits and a well, as diversified artefacts remains, namely ceramics, that we can date between the late 16th and 18th centuries.
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Conference papers on the topic "PITU 2020"

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Fernandes, Jurandir Fernando Ribeiro. "The Integrated Urban Transportation Plan: PITU 2020." In Second International Conference on Urban Public Transportation Systems. American Society of Civil Engineers, 2004. http://dx.doi.org/10.1061/40717(148)27.

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Niswaty, Risma, Andi Cudai Nur, Hasni, and Diaz Rency Sesa. "Village Fund Allocation Management in Kapala Pitu District, North Toraja Regency." In 3rd International Conference on Social Sciences (ICSS 2020). Atlantis Press, 2020. http://dx.doi.org/10.2991/assehr.k.201014.169.

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Jiang, Xiaoli, and C. Guedes Soares. "Ultimate Compressive Capacity of Rectangular Plates With Partial Depth Pits." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-21050.

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Pitting corrosion has been one of main corrosion type of immersed ship hulls, which can bring heavy damage and even accidents to in-service ships, particularly to aged ships. To investigate the effects of pits on the ultimate compressive strength of mild steel plates, a series of non-linear FEM analysis on plates with partial depth corrosion pits are undertaken in the paper, changing the size, intensity and location of pits and the slenderness of plates. It is shown that the eccentricity induced by single side distributed pits has considerable degrading effects on the ultimate compressive capacity of plates. Although the degree of pit corrosion (DOP) does reflect the effect of pits to a large extent, it is not enough to rely on DOP exclusively to represent the extent of damage caused by pits, as “volume effect” should be considered.
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Lee, Hong Sik, and A. Neil Williams. "The Diffraction of Multidirectional Random Waves by Rectangular Submarine Pits." In ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/omae2002-28058.

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The diffraction of multidirectional random surface waves with one or more rectangular submarine pits is investigated theoretically. The incident wave conditions are specified using a discrete form of the Mitsuyasu directional spectrum. The numerical model involves the superposition of regular-wave diffraction solutions based on linearized shallow water theory obtained by a two-dimensional boundary integral approach for water of uniform depth. Numerical results are presented for multi-directional random waves that illustrate the effect of the various wave and pit parameters on the diffraction characteristics of typical single and multiple pit systems.
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Espina-Herna´ndez, J. H., F. Caleyo, J. M. Hallen, A. Lo´pez-Montenegro, and E. Pe´rez-Baruch. "Influence of Remanent Magnetization on Pitting Corrosion in Pipeline Steel." In 2010 8th International Pipeline Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ipc2010-31389.

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These days, in-line inspections based on the magnetic flux leakage (MFL) principle are routinely used to detect and size metal loss and mechanical anomalies in operating oil and gas pipelines. One of the characteristics of the MFL technology is that after the inspection, the pipeline wall shows a remanent magnetization. In this work, the influence of the magnetic field on pitting corrosion in pipeline steel is studied. Pitting corrosion experiments have been carried out on samples of an API 5L grade 52 steel under a magnetization level of the same order of magnitude of the remanent magnetization in the pipeline wall after the MFL inspection. The samples were magnetized using rings of the investigated steel. The closed magnetic circuit configuration used in this study survey guaranteed that the samples kept the same magnetization level during the complete duration of the conducted experiments. This experimental setup was used in order to reproduce the conditions observed in MFL-inspected pipelines in which the magnetic field was confined to the pipe wall thickness. Immediately after magnetization, the investigated samples were subjected to pitting by immersing them in a solution with dissolved Cl− and SO42− ions. The pitting experiments were conducted for exposure times of 7 days. Non-magnetized specimens were used as control samples. The depths of the pits induced in the investigated samples were measured using optical microscopy. The maximum pit depth of each sample was recorded and used to conduct extreme value analysis of the pitting process in the magnetized and non-magnetized specimens. The results of this investigation indicate that the magnetic field confined within the pipeline wall has a significant influence on the pitting corrosion process. The statistical assessment of the pitting corrosion data collected during this study shows that the magnetic field reduces the average depth of the pit population. It also reduces the extreme pit depth values that can be predicted from the maximum values observed in the magnetized samples, with respect to the non-magnetized control samples. Scanning electron microscopy observations show that the magnetic field alters the pit morphology by increasing the pit opening (mouth). It is shown that the observed reduction in the pit depth when a magnetic field is confined to the volume of the corroding material can be explained based on the behavior of the paramagnetic corrosion products under the influence of the local magnetic field gradients produced inside and within the immediate vicinity of stable pits.
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Rodrigues, Luciana Machado, and Lui´s Frederico Pinheiro Dick. "Influence of Humic Substances on the Corrosion of the API 5LX65 Steel." In 2002 4th International Pipeline Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/ipc2002-27230.

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Aiming to simulate the underground corrosion of pipeline steels in tropic soils, the electrochemical behavior and corrosion morphology of API 5LX65 steel were studied in 0.01molL−1 Na2SO4 solutions with additions of humic (HA) or fulvic (FA) acids extracted from a peat soil. These humic substances have a higher carboxylic and nitrogenated character for HA, and a higher concentration of oxidized groups for FA, as determined by infrared (FTIR) and Raman spectroscopies. The corrosion tests showed that HA and FA enhance the pitting corrosion of the API 5LX65 steel. The observed pits are always associated to the presence of the rounded calcium aluminate inclusions of API 5LX65. Raman spectra of the corrosion products partially covering pits and inclusions suggest the formation of organic Fe compounds. The influence of humic substances on pit nucleation was attributed to passivity breakdown on the interface between Fe and inclusions, by the formation of partially soluble compounds of Fe and humic substances.
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Warikoo, R., R. Beaulieu, and B. Mason. "Stress Analysis of Turbomachinery Discs Having Complex Bolted Flange Design Features." In ASME Turbo Expo 2002: Power for Land, Sea, and Air. ASMEDC, 2002. http://dx.doi.org/10.1115/gt2002-30299.

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Mating flanges of two rotating discs with dissimilar materials were stress analysed by 3D Finite Elements using a contact algorithm to simulate the relative motion between the flanges. All the hardware associated with the flanges (bolts, nuts, bushings and washers) were also modelled. The difference in radial growths of the two flanges, hereby called “slip”, produces high cyclic stresses in the bolt holes leading to Low Cycle Fatigue (LCF) and premature cracking. Design changes were studied where the slip was minimised by changing the thermal and centrifugal response of the mating flanges. In order to substantiate the LCF life of a rotating part, spin pit testing is carried out. In the spin pits available for testing the temperature remains constant while the speed is cycled. So in order to simulate the engine duty cycle which includes thermal stresses, the spin pit test conditions are modified. The procedure adopted in this case is explained in the paper.
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Jeong, Jae-Yoon, Yun-Jae Kim, Poh-Sang Lam, Andrew Duncan, and Myeong-Woo Lee. "Investigation of Chloride-Induced Stress Corrosion Cracking for AISI 304/304L Stainless Steel Using Notched Bar Specimens." In ASME 2020 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/pvp2020-21399.

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Abstract Spent nuclear fuels are stored in dry storage canisters made of austenitic stainless steels. Canisters have a sensitivity to chloride-induced stress corrosion cracking since some storage facilities are located in coastal regions, and this environment could have a higher risk for pits and cracks to form on the surface of canisters. Hence, this paper suggests an experimental method of evaluating crack initiation for austenitic stainless steels. Notched bar specimens fabricated using AISI 304 and 304L stainless steels are designed to simulate loads corresponding to welding residual stresses on the surface of canisters. For testing to be conducted in chloride environments, the developed tester for evaluating CISCC is designed such that the notched bar specimens are immersed into the brine of 5% salinity and are loaded by tightening a spring to provide a constant load condition at 50 °C temperature. Also, initial load applied to each notched specimen is verified using finite element analysis as in the same experimental condition. As a result, the areas by pitting corrosion on notches are 1measured using the Image Analyzer program and the stress parameters obtained from the finite element analysis are used to correlate the effect of the pit formation.
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Asai, Kunio, Eiji Saito, Kiyoshi Namura, Shigeo Sakurai, and Kenichiro Nomura. "Corrosion Fatigue Life Evaluation Method for the Bladed Disk Attachments of Low-Pressure Steam Turbine." In 2002 International Joint Power Generation Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/ijpgc2002-26073.

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The mechanism of disk cracking was investigated and an evaluation method for its failure occurrence rate was developed. It was found that the disk cracking was caused by the corrosion pit growth, the superposition of the multiple vibration modes, and the increase in the scatter of the natural frequency due to the interface condition change after long-term operation. The effects of several uncertainties on the failure occurrence rate were examined and the values of the uncertainties were obtained by solving the inverse problem according to the failure analysis; the examined uncertainties were the standard deviation of the natural frequency and the stimulus ratio. It is recommended to perform the replica inspection by removing the blades and to take the proper maintenance actions based on the remaining life evaluations because relatively small corrosion pits can cause crack initiation. It was found that a continuous cover blade is superior to the conventional tenon-shroud-type grouped blade because the former reduces resonance points in the interference diagram and eliminates any tangential modes which are main contributors for the disk cracking.
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Ma, Liangxiang, Jianghui Zhang, Xiang Ma, et al. "An Experimental Study on Flow Boiling Heat Transfer Outside Horizontal Enhanced Tubes." In ASME 2020 Heat Transfer Summer Conference collocated with the ASME 2020 Fluids Engineering Division Summer Meeting and the ASME 2020 18th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/ht2020-9009.

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Abstract A flow boiling heat transfer experimental investigation on the shell-side of a smooth tube and two enhanced tubes (C-EHT, P-EHT) was performed using R410A as working fluid. The outer surface of the C-EHT tube is covered with special fins having a salient height, and the inner surface has a thread structure with the same distribution density. The outer surface of the P-EHT tube has lots of tiny pits formed by high-strength sandblasting and smooth inner surface. The inlet and outlet vapor quality is 0.2 and 0.8 at a saturation temperature of 279K. The flow boiling experimental results show that the evaporation heat transfer coefficient of C-EHT tube is the largest among the tested tubes. However, for the P-EHT tube, its heat transfer coefficient is lower than that of smooth tube. C-EHT tube with special fins has higher heat transfer area, which can also intensify the interfacial turbulence with increasing fins. The reason why the flow boiling heat transfer coefficient of the P-EHT tube is lower than that of the smooth tube is that the diameter of the pit on P-EHT tube is too small to form the nucleation cites, which results in bubble retention under the condition of low mass flux and deteriorates the flow boiling heat transfer performance.
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Reports on the topic "PITU 2020"

1

Berggren Thomas J., Henry Franzoni, and Larry R. Basham. Comparative Survival Study (CSS) of Hatchery PIT-tagged Spring/Summer Chinook; Migration Years 1997-2000 Mark/Recapture Activities and Bootstrap Analysis, 2002 Annual Report. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/887176.

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Atencio, B. P. State Waste Discharge Permit application: 200-E Powerhouse Ash Pit. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10167493.

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Atencio, B. P. State Waste Discharge Permit application: 200-W Powerhouse Ash Pit. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10167562.

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Zydlewski, Gayle B., and Sean Casey. Evaluation of Fish Movements, Migration Patterns and Populations Abundance with Streamwidth PIT Tag Interrogation Systems, Final Report 2002. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/828278.

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Downing, Sandra L., and Earl F. Prentice. Overview of the Performance of PIT-Tag Interrogation Systems for Adult Salmonids at Bonneville and McNary Dams, 2002. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/827650.

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Zydlewski, Gayle, Christiane Winter, and Dee McClanahan. Evaluation of Fish Movements, Migration Patterns, and Population Abundance with Streamwidth PIT Tag Interrogation Systems, Final Report 2002. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/963051.

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Berggren, Thomas J., and Larry R. Basham. Comparative Survival [Rate] Study (CSS) of Hatchery PIT-tagged Chinook; Migration Years 1996-1998 Mark/Recapture Activities, 2000 Annual Report. Office of Scientific and Technical Information (OSTI), 2000. http://dx.doi.org/10.2172/818847.

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Jonasson, Brian. Comparative Survival Rate Study (CSS) of Hatchery PIT-tagged Chinook; Oregon Department of Fish and Wildlife, Annual Report 2002-2003. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/963089.

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Bouwes, Nick, Charlie Petrosky, and Howard Schaller. Comparative Survival Study (CSS) of Hatchery PIT-tagged Spring/Summer Chinook; Migration Years 1997-2000 Mark/Recapture Activities, 2001 Annual Report. Office of Scientific and Technical Information (OSTI), 2002. http://dx.doi.org/10.2172/818851.

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Honig, Kristen. Pit Disassembly and Processing/Oxidation Capacity (PDP) for Disposition of Surplus Plutonium at Los Alamos FY 2021 Workshop 1 Introduction Slides. Office of Scientific and Technical Information (OSTI), 2021. http://dx.doi.org/10.2172/1764121.

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