Bibliografias temáticas / SUEP (Firm)

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Literatura científica selecionada sobre o tema "SUEP (Firm)"

Autor: Grafiati

Publicado: 25 de julho de 2024

Última modificação: 30 de julho de 2024

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Artigos de revistas sobre o assunto "SUEP (Firm)"

Gande, Amar, e Craig M. Lewis. "Shareholder-Initiated Class Action Lawsuits: Shareholder Wealth Effects and Industry Spillovers". Journal of Financial and Quantitative Analysis 44, n.º 4 (agosto de 2009): 823–50. http://dx.doi.org/10.1017/s0022109009990202.

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AbstractThis paper documents significantly negative stock price reactions to shareholder-initiated class action lawsuits. We find that shareholders partially anticipate these lawsuits based on lawsuit filings against other firms in the same industry and capitalize part of these losses prior to a lawsuit filing date. We show that the more likely a firm is to be sued, the larger the partial anticipation effect (shareholder losses capitalized prior to a lawsuit filing date) and the smaller the filing date effect (shareholder losses measured on the lawsuit filing date). Our evidence suggests that previous research that typically focuses on the filing date effect understates the magnitude of shareholder losses, and that such an understatement is greater for firms with a higher likelihood of being sued.

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Amoah, Nana Y., Anthony Anderson, Isaac Bonaparte e Kyle Meyer. "Auditor Litigation and the Penalties on U.S. Client Firms after the Private Securities Litigation Reform Act". JABM JOURNAL of ACCOUNTING - BUSINESS & MANAGEMENT 1, n.º 25 (14 de agosto de 2018): 62. http://dx.doi.org/10.31966/jabminternational.v1i25.330.

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This study examines the relation between auditor litigation and the market and legal penalties imposed on sued audit clients after the private securities litigation reform act (PSLRA). A sample of accounting-related lawsuits is used in the regressions of three-day cumulative abnormal returns, settlement amount, and probability of settlement on auditor litigation and other variables. The results indicate a negative relation between auditor litigation and the 3-day cumulative abnormal returns around the announcement of litigation against the client firm. Another result from the study is a positive relation between auditor litigation and the legal penalty on the client firm. Specifically, the results indicate higher likelihood of settlement and larger settlement sizes for securities lawsuits in which the auditor is also sued. Our study contributes to the debate on the merit of litigation against auditors after the PSLRA. The findings imply that lawsuits against auditors appear to be a signal of audit failure and higher financial reporting risk. As audit failures erode investor confidence in the capital markets, the present study provides valuable evidence on the market and legal system’s perception of the merit of auditor litigation. The findings should be of interest to regulators and market participants given the increase in securities lawsuits against audit firms and the substantial reputational consequences of such lawsuits on audit firms and client firms.

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McNichols, Maureen F., e Stephen R. Stubben. "Does Earnings Management Affect Firms’ Investment Decisions?" Accounting Review 83, n.º 6 (1 de novembro de 2008): 1571–603. http://dx.doi.org/10.2308/accr.2008.83.6.1571.

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ABSTRACT: This paper examines whether firms manipulating their reported financial results make suboptimal investment decisions. We examine fixed asset investments for a large sample of public companies during the 1978–2002 period and document that firms that manipulate their earnings—firms investigated by the SEC for accounting irregularities, firms sued by their shareholders for improper accounting, and firms that restated financial statements—over-invest substantially during the misreporting period. Furthermore, following the misreporting period, these firms no longer over-invest, consistent with corrected information leading to more efficient investment levels. We find similar patterns for firms with high discretionary revenues or accruals. Our findings suggest that earnings management, which is largely viewed as targeting parties external to the firm, can also influence internal decisions.

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Davis, Frederick, Behzad Taghipour e Thomas J. Walker. "Insider trading surrounding securities class action litigation and settlement announcements". Managerial Finance 43, n.º 1 (9 de janeiro de 2017): 124–40. http://dx.doi.org/10.1108/mf-05-2016-0129.

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Purpose The purpose of this paper is to investigate the trading patterns of corporate insiders, both managing and non-managing, around the announcement dates of securities class action lawsuits and related legal settlements. Design/methodology/approach The authors use market model event study methodology to examine the impact of class action litigation and settlement announcements on the stock prices of sued firms. The authors then determine the extent of abnormal insider trading surrounding such announcements by comparing insider trading activity (volume and transaction counts) to prior insider trading in the same firm, and to a matched sample of firms not experiencing such litigation announcements. A multivariate framework is utilized to provide further insight into the determinants of such abnormal insider trading. Findings The authors establish that class action litigation and settlement announcements have a significant impact on the stock prices of sued firms, and that foreknowledge of these events appears to be used by insiders to earn abnormal profits. Moreover, results indicate that managing insiders exhibit higher opportunistic abnormal trading activity than non-managing insiders. Multivariate analysis shows that size, prior firm returns, and the implementation of the Sarbanes-Oxley Act are important determinants of such insider trading. Originality/value This appears to be the first paper to analyze insider trading surrounding class action settlement announcements, and raises concerns about the ethical conduct of certain insider groups while highlighting the importance of access to private information, even amongst insiders themselves.

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Gao, Yuan, Luchao Zhang e Chunlei Zeng. "Study on the Engineering Application of LNG Accident Consequence Model in the Design of Terminal Sump". Highlights in Science, Engineering and Technology 90 (8 de abril de 2024): 240–49. http://dx.doi.org/10.54097/pecgng44.

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In order to provide a theoretical basis for the design of the LNG terminal sump, this paper proposes a suitable mathematical model and solution method by analyzing the physical process of evaporation diffusion and thermal radiation of the sump. Combined with the engineering practice, a lot of calculations have been carried out on the vapor diffusion concentration and pool fire thermal radiation intensity of the terminal sump, and the correlations between the vapor concentration and thermal radiation intensity and their influencing factors have been quantitatively calculated. Based on the analysis of the calculation results, it is concluded that the vapor concentration and thermal radiation value at the fire control room of the wharf are strongly related to the equivalent diameter of the sump and the distance from the fire control room to the sump. Among them, the distance from the fire control room to the sump is more closely related to the vapor concentration, and the equivalent diameter of the sump is more closely related to the thermal radiation; Keeping 19.2~33.8meters between the fire control room and the sump can basically ensure that the vapor concentration at the fire control room does not exceed the standard; In order to ensure that the thermal radiation at the fire control room does not exceed the standard, the distance between the fire control room and the sump should not be less than 15meters, and the equivalent diameter of the sump should not be greater than 7meters. The research methods and conclusions proposed in this paper can provide useful reference for engineering designers, and also build a bridge for mutual reference and application for theoretical research and engineering practice.

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Hussain, Haroon, Rohani Md-Rus, Hamdan Amer Al-Jaifi e Rana Yassir Hussain. "Determinants of Corporate Pay-Out Policy and the Moderating Effects of Firm's Growth: Evidence from Pakistan". Studia Universitatis „Vasile Goldis” Arad – Economics Series 32, n.º 3 (12 de julho de 2022): 65–101. http://dx.doi.org/10.2478/sues-2022-0013.

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Abstract This study investigates the determinants of dividend pay-out of listed firms in Pakistan from the year 2011 to 2015. The focus of the study is the life cycle theory of dividends, agency theory and signaling theory. Corporate governance indicators, firm efficiency and cash flow volatility are the main determinants used in this study. This study also includes eight corporate governance indicators namely insider ownership, ownership concentration, institutional ownership, board independence, board size, CEO duality, audit committee independence and remuneration committee. It is found that ownership concentration, institutional ownership, CEO duality, firm efficiency and cash flow volatility are the significant determinants of dividend pay-out in Pakistan. It is also found that growth opportunities significantly moderate the impact of ownership concentration, institutional ownership, CEO duality, firm efficiency, cash flow volatility on the dividend pay-out. This research is among the pioneer studies which examine the impact of firm efficiency on dividend pay-out. Likewise, the study is among the first attempts to incorporate growth opportunities as moderating variable in the relationship between corporate governance indicators, firm efficiency and cash flow volatility with dividend pay-out. Results show that the management of an efficient firm pays a high dividend to increase its reputation in the market. Furthermore, the negative signaling effect of dividend omission may not exist for efficient firms. It implies that efficient firms at their growth stage may also skip dividends.

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Shimo, Masayoshi, James V. Canino e Stephen D. Heister. "Modeling Oil Flows on Seal Runners and Engine Sump Walls". Journal of Engineering for Gas Turbines and Power 127, n.º 4 (13 de dezembro de 2004): 827–34. http://dx.doi.org/10.1115/1.1924431.

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Oil flow behavior within a lubrication system utilized in a turbofan engine has been studied using a two-dimensional model for a seal runner and a sump wall. A two-dimensional, axisymmetric boundary layer method is utilized to derive a model for the film on the seal runner. An integral method analysis of boundary layer equations are utilized to derive a model for the film behavior on the outer wall of the sump neglecting variations in the axial direction. Parametric studies for oil flow at the seal runner and one the sump wall have been generated for a wide range of oil film properties and ambient conditions.

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Kim, Dongnyoung, Inchoel Kim, Thomas M. Krueger e Omer Unsal. "The influence of CEO political ideology on labor relations and firm value". Managerial Finance 47, n.º 9 (29 de abril de 2021): 1300–1319. http://dx.doi.org/10.1108/mf-09-2020-0471.

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PurposeThis article aims to examine the influence of chief executive officer (CEO) internal political beliefs on labor relations. Prior research has paid little attention to channels through which the internal personal value system of managers enhances or deteriorates firm value. The authors provide evidence consistent with CEOs adopting labor policies impacting incumbent management–labor relationships based upon their political ideologies.Design/methodology/approachThe research design tests the impact of CEO political ideology on labor relation using an individual CEO’s personal information and firm affiliation, employee lawsuit information, financial contributions to candidates and committees, and firm financial information. The authors compiled a sample of 4,354 unique CEOs from 2,558 US firms that are covered by ExecuComp and used 18,404 firm-year observations for the study’s analysis. A Heckman two-stage estimation process is used to address a potential sample selection bias and match the requirements of exclusion and relevance criteria.FindingsFindings indicate that firms led by Republican-leaning CEOs are more likely to be sued by their employees, especially for violating union rights. Moreover, the findings of the study uncovered that Republican-leaning CEOs have fewer cases dismissed or withdrawn compared to Democrat-leaning CEOs and are also less likely to settle court cases prior to trial. Results indicate that Republican-leaning CEOs are associated with more substantial decreases in firm value compared to Democrat-leaning CEOs when facing labor allegations. The authors further show that firm value is lower for all firms facing litigation, with the magnitude of the decrease being more pronounced for firms with Republican CEOs.Research limitations/implicationsFirm affiliations are identified using ExecuComp, employee lawsuit information from the National Labor Relations Board (NLRB), financial contributions to candidates and committees from the Federal Election Committee (FEC) website, and financial information from Compustat. To the extent that these websites are inaccurate, such as financial contributions being underreported, the findings reported here may understate the relationships reported in this article.Practical implicationsThe authors capture CEO political ideology using political contributions. There may be other means, such as physical space and personal effort, by which one could also estimate the party and intensity of CEO political ideology. This information is unavailable.Social implicationsWhile presidential politics has four-year cycles, managerial finance is a daily activity. While political affiliation is most clearly measurable through monetary contributions, one can see implications of manager political leaning through their relationship with labor throughout the election cycle.Originality/valueThe analyses of this study indicate that labor unions are more likely to sponsor lawsuits and stronger allegations in firms with Republican CEOs and show that withdrawal, settlement or dismissal rates are lower when firms are managed by Republican managers, resulting in higher subsequent legal costs and potentially damaged employee morale. Also, this paper investigates whether lawsuits have a greater negative consequence on firm value when the firm is run by a Republican CEO. The authors find that lawsuits significantly lower Tobin's Q for Republican-led firms compared to companies with Democratic and apolitical CEOs. The authors further show that firm value is lower for all firms facing litigation, with the magnitude of the decrease being more pronounced for firms with Republican CEOs.

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Knight, Carly, Frank Dobbin e Alexandra Kalev. "Under the Radar: Visibility and the Effects of Discrimination Lawsuits in Small and Large Firms". American Sociological Review 87, n.º 2 (11 de março de 2022): 175–201. http://dx.doi.org/10.1177/00031224221077677.

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Research on how discrimination lawsuits affect corporate diversity has yielded mixed results. Qualitative studies highlight the limited efficacy of lawsuits in the typical workplace, finding that litigation frequently elicits resistance and even retribution from employers. But quantitative studies find that lawsuits can increase workforce diversity. This article develops an account of managerial resistance and firm visibility to reconcile these divergent findings. First, we synthesize job autonomy and group conflict theories to account for resistance that occurs when dominant groups perceive non-dominant groups to be attempting to usurp managerial authority, in this case through litigation. Second, we integrate insights from organizational institutionalism, which suggests that highly visible firms seek to demonstrate compliance with legal and societal norms. Drawing on this theory, we predict that only large, visible firms will see increases in diversity following lawsuits, and, by the same token, that the most visible workplaces of those large firms, their headquarters, will see the greatest changes. We test our hypotheses with data on litigation and workforce composition from a diverse set of 632 firms that were sued by the EEOC between 1997 and 2006. This study shows that understanding the consequences of lawsuits across firms, and across organizations within them, is key to tackling workplace discrimination.

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Yanovsky, K. "The Size of the State Sector of the Economy (Theoretical Approaches, Survey of Literature, Russian Experience)". Voprosy Ekonomiki, n.º 9 (20 de setembro de 2004): 25–34. http://dx.doi.org/10.32609/0042-8736-2004-9-25-34.

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The articles by the experts of the Association of Studies of Public Economics analyze the situation with firms of the state sector of the Russian economy along three directions:- qualitative analysis of Russian and foreign experience in governing the public sector of the economy;- institutional and legal analysis of state unitary enterprises (SUEs);- comparative statistical analysis of performance indicators of public and private firms in Russia.On the basis of Russian and foreign experience authors study unsuccessful attempts to create effective forms of state entrepreneurship, argue the impossibility to make positive incentives for managers within the system of "bureaucratic entrepreneurship" and the necessity to limit state intervention into economic activity by a small number of public goods which cannot be provided by markets. Authors give a number of examples of various forms of inefficient governance and misuse of public property in modern Russia. Authors study the evolution of the legal form of SUEs which was created in the Soviet-type economy, perspectives of its existence in the modern Russian legislation. They prove the contradictory nature of SUEs and make conclusion about the inevitability of transformation of this sector of the Russian economy. The results of performance indicators comparison of private and public enterprises are contradictory. Federal SUEs show significantly better results than private firms in return on sales, liquidity and financial stability though return on labor and capital (labor productivity and return on assets) is lower in the SUEs. At the same time corporations with a majority block of shares in the hands of the federal government (which are similar to the SUEs in many aspects) are the worst performers among all types of firms with state participation. Authors attempt to explain these contradictions.

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Teses / dissertações sobre o assunto "SUEP (Firm)"

Neely, Jacob S. "INTIMATE INDIGENEITIES: ASPIRATIONAL AFFECTIVE SOLIDARITY IN 21^ST CENTURY INDIGENOUS MEXICAN REPRESENTATION". UKnowledge, 2019. https://uknowledge.uky.edu/hisp_etds/42.

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This dissertation analyzes six contemporary texts (2008–18) that represent indigenous Mexicans to transnational audiences. Despite being disparate in authorship, genre, and mode of presentation, all address the failings of the Mexican state discourse of mestizaje that exalts indigenous antiquities while obfuscating the racialized socioeconomic hierarchies that marginalize contemporary indigenous peoples. Casting this conflict synecdochally as the national imposing itself on quotidian life, the texts help the reader/viewer come to understand it in personal, affective terms. The audience is encouraged to identify with how it feels to exist in a space where, paradoxically, the interruption of everyday life has become the status quo. Questioning the status quo by appealing to international audiences, these texts form a contestatory current against state mestizaje within the same transnational networks of legitimation employed in the 19th and 20th centuries to promote it. In this way, the texts work to build political solidarity via affective means in order to promote and propagate in the popular discourse a questioning how the Mexican state apprehends its indigenous citizens. Ultimately, they seek more inclusive, representative governmental policies for indigenous peoples in Mexico without rejecting capitalist hegemony: they are articulating it against itself.

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Ranni, Davide. "La produzione di videoclip attraverso le sue trasformazioni economiche, sociali e distributive". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23538/.

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Questo lavoro intende dimostrare in quali modi e tramite quali strumenti la produzione di videoclip sia cambiata nel corso degli anni attraverso le sue trasformazioni nei campi della distribuzione, della legislazione e dei finanziamenti al videoclip. Comprendere cosa voglia dire oggi produrre un videoclip significa constatare come questi tre macro-argomenti abbiano influenzato, secondo diverse sfaccettature, i budget e gli investimenti monetari da parte delle case discografiche. Inoltre, non si vuole dare un giudizio sulla natura stilistica dei videoclip o fare una critica su quelli che stilisticamente si avvicinano a una bellezza cinematografica, ma affermare che una buona produzione e un discreto budget, uniti a una buona collocazione distributiva e l’uso di finanziamenti pubblici e privati, può far sì che il videoclip sia ancora un mezzo remunerativo, sia a livello economico sia a livello di immagine dell’artista. L’obiettivo principale, quindi, del videoclip è riferito alla sua funzione sociale e non alla finalità economica; l’engagement tra artista e audiece non comporta un ritorno ecnomico, ma un guadagno sociale, di immagine e di fidelizzazione perché un’artista, che sia un cantante, un attore o un qualsiasi performer nell’industria dell’entertainment, è possibile assimilarlo a un brand, a un’azienda che ha bisogno di “fedeli seguaci” che supportino il prodotto, il quale, in questi casi, coincide con la persona stessa.

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PORTO, KARINA M. B. G. "Efeitos da radiação gama (sup(60)Co) nas principais propriedades físicas e químicas de embalagens compostas por papel grau cirúrgico e filme plástico laminado, destinadas à esterilização de produtos para saúde". reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10575.

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Made available in DSpace on 2014-10-09T12:42:08Z (GMT). No. of bitstreams: 0
Made available in DSpace on 2014-10-09T14:05:09Z (GMT). No. of bitstreams: 0
Dissertação (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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Livros sobre o assunto "SUEP (Firm)"

(Firm), SUEP. SUEP. Taipei: Garden City Pub. Ltd., 2015.

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Bjørnkjær, Kristen. Øst for Suez: En rejse med Mærsk--og gennem livet. København: People'sPress, 2015.

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Marchionne, Sergio. Chi comanda è solo: Sergio Marchionne in parole sue. Milano: Rizzoli, 2012.

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Condon, Thomas J. "Fire me & I'll sue!": A manager's survival guide to employee rights. Ramsey, NJ: Modern Business Reports, 1986.

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Benigni, Sonia. Ville da sogno in Costa Smeralda: La storia della Filigheddu costruzioni raccontata attraverso le sue più importanti realizzazioni. Editado por Filigheddu costruzioni (Firm). Cinisello Balsamo, Milano: Silvana, 2005.

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Folli, Carlo. San Gemini e le sue acque--: La storia di un'opportunità colta e di tante occasioni mancate. Roma: Armando, 2012.

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Cagnoni, Emilio. Fantozzi Kafka: Il ragioniere sotto processo e le sue tragicomiche metamorfosi. Palermo: L'epos, 2007.

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il testo letterario e le sue metamorfosi nell'era dell'immagine (Conference) (2011 Università di Roma Tre) Oltre la pagina. Oltre la pagina: Il testo letterario e le sue metamorfosi nell'era dell'immagine. Roma: Edizioni di storia e letteratura, 2013.

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U.S. Nuclear Regulatory Commission, ed. FIRE BARRIER PENETRATION SEALS IN NUCLEAR POWER PLANTS... NUREG-1552, SUPP.1... U.S. NUCLEAR REGULATORY COMMISSION. [S.l: s.n., 1999.

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Ciacci, Gianluigi. La firma digitale: Il sistema della firma digitale e il commercio elettronico su Internet : commento al D.P.R. 445-2000 e sue applicazioni pratiche. 3^a ed. Milano: Il sole 24 ore, 2002.

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Capítulos de livros sobre o assunto "SUEP (Firm)"

Gambino, Francesca. "About the Time Charlemagne Invaded the Laguna and Venice Returned Frankish Fire with Bread". In Inventing Past Narratives. Venice and the Adriatic Space (13^th–15^th Centuries), 48–63. Turnhout, Belgium: Brepols Publishers, 2023. http://dx.doi.org/10.1484/m.convisup-eb.5.137561.

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Vasylyev, M., S. I. Sidorenko, S. M. Voloshko, V. Kostiuchenko e I. E. Kotenko. "Low Temperature Self-Diffusion of Iron in the ⁵⁶Fe/⁵⁷Fe Stable-Isotope Thin-Film System". In Defect and Diffusion Forum, 85–92. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-37-x.85.

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Miyagawa, Shingo, Tomoyuki Suzuki, Takahiro Kudo e Masataka Satoh. "Encapsulating Annealing of N⁺ Implanted 4H-SiC by Diamond-Like-Carbon Film". In Materials Science Forum, 583–86. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-442-1.583.

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Cui, Rui Hai, Zhao Hua Jiang e Zhong Ping Yao. "Influence of Cu²⁺ Doping on the Photocatalytic Activity of TiO₂ Film". In High-Performance Ceramics V, 1483–85. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/0-87849-473-1.1483.

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Ding, Xin Geng, Ji Wei Gao, Qian Hong Shen, Jian Xiang Liu e Hui Yang. "The Interface Reaction between an Ag⁺-Doped TiO₂ Film and Stainless Steel Substrate". In Key Engineering Materials, 1559–62. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-410-3.1559.

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Munro, J. Forbes. "The “Scrubby Scotch Screw Company”: British India Steam Navigation Co.'s Coastal Services in South Asia, 1862-1870". In From Wheel House to Counting House, 43–72. Liverpool University Press, 1992. http://dx.doi.org/10.3828/liverpool/9780969588511.003.0004.

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The 1860s were marked by a gradual spread of steamship lines in the Indian Ocean maritime region. On the long routes from Suez and Aden to India, Australia and the Far East, P&O, the “flagship” of British imperialism in the region,¹ was joined from 1861 by its French counterpart, Messageries Imperiales, which in its steamship lines from Marseilles to Alexandria and from Suez to Singapore, Saigon, Hong Kong and Yokohama expressed the aspirations and elegance of Napoleon Ill's empire. The two firms politely manoeuvred for passenger traffic and the fine freights--silks, raw silk, opium, bullion and specie--which were the perfect accompaniment for mail and passenger liners....

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"Relationship with Anishinaabe Spirituality¹". In Rekindling the Sacred Fire, 162–201. University of Manitoba Press, 2015. http://dx.doi.org/10.1515/9780887554780-009.

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Nachreiner, Thomas. "»… da siehst nur Punkterl und Stricherl.«¹". In Medienreflexion im Film, 385–98. transcript Verlag, 2014. http://dx.doi.org/10.1515/9783839410912-024.

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Tree, David, e Dilin Wang. "Conforming Tax Avoidance and Firm Value ¹". In Advances in Taxation, 77–103. Emerald Publishing Limited, 2024. http://dx.doi.org/10.1108/s1058-749720240000031003.

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Adelmann, Ralf, Jan-Otmar Hesse, Judith Keilbach e Markus Stauff. "»It’s not about money, it’s about sending a message.«¹". In Medienreflexion im Film, 413–24. transcript Verlag, 2014. http://dx.doi.org/10.1515/9783839410912-026.

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Trabalhos de conferências sobre o assunto "SUEP (Firm)"

Robinson, Adam, Carol Eastwick e Herve´ Morvan. "Further Computational Investigations Into Aero-Engine Bearing Chamber Off-Take Flows". In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-22626.

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Within an aero-engine bearing chamber oil is provided to components to lubricate and cool. This oil must be efficiently removed (scavenged) from the chamber to ensure it does not overheat and degrade. Bearing chambers typically contain a sump section with an exit pipe leading to a scavenge pump. In this paper a simplified geometry of a sump section, here simply made of a radial off-take port on a walled inclined plane, is analysed computationally. This paper follows on work presented within GT2008-50634. In the previous paper it was shown that simple gravity draining from a static head of liquid cold be modelled accurately, for what was akin to a deep sump situation fond in integrated gear boxes for example. The work within this paper will show that the draining of flow perpendicular to a moving film can be modelled. This situation is similar to the arrangements found in transmission bearing chambers. The case modelled is of a walled gravity driven film running down a plane with a circular off-take port, this replicates experimental work similar to that reported in GT2008-50632. The commercial computational fluid dynamics (CFD) code, Fluent 6 [1] has been employed for modelling, sing the Volume of Fluid (VOF) approach of Hirt and Nichols [2, 3] to capture the physics of both the film motion and the two phase flow in the scavenge pipe system. Surface tension [4] and a sharpening algorithm [5] are used to complement the representation of the free surface and associated effects. This initial CFD investigation is supported and validated with experimental work, which is only depicted briefly here as it is mainly sued to support the CFD methodology. The case has been modelled in full as well as with the use of a symmetry plane running down the centre of the plane parallel to the channel walls. This paper includes details of the meshing methodology, the boundary conditions sued, which will be shown to be of critical importance to accurate modelling, and the modelling assumptions. Finally, insight into the flow patterns observed for the cases modelled are summarised. The paper further reinforces that CFD is a promising approach to analysing bearing chamber scavenge flows although it can still be relatively costly.

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Chandra, Budi, e Kathy Johnson. "Scavenge Performance of an Optimized Shallow Sump at Various Flow Conditions". In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-16049.

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Abstract Oil scavenge flow in aero-engine bearing chamber remains largely a challenging problem for many engine designers. Research campaign on scavenge flow has been conducted by G2TRC – Gas Turbine and Transmissions Research Centre (previously Rolls Royce University Technology Centre in Gas Turbine Transmission Systems) at the University of Nottingham. It was recognized that a deep sump performs better than shallower one due to its ability to “shield” the collected oil in the sump from the shaft windage thus reducing the amount of oil being picked up by the bulk air rotation. However, such a deep sump design cannot be employed in some engines and especially at certain locations where space is limited. A parametric study combined with phenomenological approach on shallow sump geometry has been conducted and presented in the previous publication where a certain optimized shallow sump variant was proposed depending on whether the flow in the chamber is wall film dominated or airborne droplets dominated. The parametric phenomenological approach was employed since it can be done relatively quicker than typical data gathering through an experiment. However the approach relies on qualitative interpretation of the flow features, and its application in bearing chamber flow research has never been validated before. This paper presents the results of quantitative measurements of residence volumes of an optimized shallow sump variant identified in the parametric phenomenological study. Comparison was then made with the residence volumes of some existing engine sumps. It was found that the optimized shallow sump for wall film dominated flow has lower residence volumes compared to some existing engine sumps. In some cases, the residence volume can be reduced by up to 75%. An optimized shallow sump variant for airborne droplets dominated was also identified in the previous parametric phenomenological study, although the residence volume measurement is yet to be conducted. The optimized shallow sump for wall film dominated flow was also identified as a good sump regardless of the flow regime. However when it was tested in airborne droplets dominated flow, its residence volumes are higher than some of the existing engine sumps. This highlights the importance of considering the flow regime in the bearing chamber in any attempt to optimize a sump geometry.

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Narváez-Romo, Beethoven. "EXPERIMENTAL STUDY OF A HORIZONTAL LIQUID FILM HEAT EXCHANGER CONFIGURATION". In 27^th Brazilian Congress of Thermal Sciences and Engineering. ABCM, 2023. http://dx.doi.org/10.26678/abcm.cobem2023.cob2023-2419.

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Alves Ferreira, Júlio César, Marcus Vinícius Pedron Carneiro e Jader Barbosa. "Numerical Simulation of Full-cone Sprays for Liquid Film Formation". In 27^th Brazilian Congress of Thermal Sciences and Engineering. ABCM, 2023. http://dx.doi.org/10.26678/abcm.cobem2023.cob2023-1256.

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da Silva, Thiago Assis, Aldemir Ap Cavalini Jr e Aristeu Silveira Neto. "Thin film theory applied to mathematical modeling of fluidynamic bearings". In 27^th Brazilian Congress of Thermal Sciences and Engineering. ABCM, 2023. http://dx.doi.org/10.26678/abcm.cobem2023.cob2023-0603.

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Kumar, YB Kishore, Kiran YB, Hariprasad Tarigonda e Raghurami Reddy Doddipalli. "Preparation of Copper Zinc Tin Sulfide Thin Film Solar Cells by Chemical Synthesis". In International Conference on Advances in Design, Materials, Manufacturing and Surface Engineering for Mobility. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2023. http://dx.doi.org/10.4271/2023-28-0139.

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<div class="section abstract"><div class="htmlview paragraph">Cu<sub>2</sub>ZnSnS<sub>4</sub> (CZTS) is a promising quaternary semiconducting absorber layer in thin film heterojunction solar cells. All the elements of this compound semiconductor were abundant, inexpensive, and non-toxic, hence CZTS is an alternative emerging optoelectronic material for Cu(In,Ga)Se<sub>2</sub> and CdTe solar cells. Using the traditional spray approach, these films were effectively grown at an ideal substrate temperature of 643 K. The deposited films are found to be a kesterite structure using X-ray diffraction studies. The lattice parameters are calculated from the XRD spectrum and are found to be a = b = 5.44 Å and c = 10.86 Å. The energy band gap and optical absorption coefficient are found to be 1.50 eV and above 10<sup>4</sup> cm<sup>-1</sup> respectively. The material exhibits p-type conductivity. <b>After the chemical spray pyrolysis is completed, the deposited films remain on the hot plate, thus improving the films' crystallinity.</b> A Cu<sub>2</sub>ZnSnS<sub>4</sub> solar cell is fabricated using entirely chemical synthesis methods. The absorber layer has been deposited using spray pyrolysis deposition. CdS used as the buffer layer and these films have been successfully deposited through chemical bath deposition. The thin film solar cell exhibits an open circuit voltage and short circuit current of 286 mV and 2.6 mA/cm<sup>2</sup>. To attain reasonable efficiency, work is being done.</div></div>

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Ozsipahi, Mustafa, Sertac Cadirci, Hasan Gunes, Kemal Sarioglu e Husnu Kerpicci. "Numerical Simulation of Lubrication System in a Hermetic Reciprocating Compressor". In ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/esda2014-20043.

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The aim of this numerical study is to investigate the lubrication system of a household hermetic reciprocating compressor. The effects of the rotational speed, oil viscosity and crankshaft-to-oil sump bottom distance on the oil-air two phase flows are investigated in detail. Necessary oil to lubricate the components of the compressor is sucked from the oil sump through an asymmetrically opened suction hole of the crankshaft by its rotational movement and climbs as an oil film on the helical channel carved on the shaft wall. This oil film is directed to crankshaft outlet. The oil forms an immiscible mixture with air, thus a two phase flow model should be analyzed using Volume of Fluid (VoF) method in the flow solver. Main findings related to the oil mass flow rate released from the crankshaft outlet reveal that with increasing rotational speed, the mass flow rate from the crankshaft outlet also increases, but with increasing viscosity and decreasing crankshaft-to-oil sump bottom distance, the oil mass flow rate decreases.

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Vidaletti, Henrique, Álisson Renan Stochero da Silva, Jacqueline Copetti, Mario Henrique Macagnan, Jeferson Diehl de Oliveira, Elaine Maria Cardoso e Leonardo Manetti. "EXPERIMENTAL STUDY ON VITRIFICATION OF CRYOPROTECTANTS USING THIN-FILM EVAPORATION OF NITROGEN". In 27^th Brazilian Congress of Thermal Sciences and Engineering. ABCM, 2023. http://dx.doi.org/10.26678/abcm.cobem2023.cob2023-0720.

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Furieri, Bruno, jane meri Santos e Jean-Luc Harion. "TEMPORAL EVOLUTION OF SUSPENTION POTENTIAL AROUND SUCCESSIVE STOCKPILES USING THE OIL-FILM TECHNIQUE". In 27^th Brazilian Congress of Thermal Sciences and Engineering. ABCM, 2023. http://dx.doi.org/10.26678/abcm.cobem2023.cob2023-2397.

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Chandra, Budi, e Kathy Simmons. "Flow Characteristics in Aeroengine Bearing Chambers With Shallow Sump". In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-90320.

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Abstract In an aeroengine oil is supplied to the bearings for lubrication and cooling. Subsequently, it creates a two phase flow environment in the bearing chamber that may contain droplets, mist, wall film, ligaments, froth or foam and liquid pools. After the oil has served its purpose, it is scavenged out of the chamber and recycled. Effective oil removal is essential as unnecessary working of the oil can lead to excessive heat generation in the chamber, increased risk of seal leakage, and reduced overall efficiency. However the task of oil removal is not trivial as it is entrained in a highly rotating environment induced by the rotating shafts. Shallow sump variants were investigated using a design of experiments approach. A previous publication discussed the performance of the sump variants using categorization of visualization data relating to the extent of hydraulic uplift in the sump region. Hydraulic uplift was found to be directly related to residence volume in the gravity dominated wall film flow regime. Furthermore, it was found that the flow condition factors such as flow regime and shaft speed are the dominating factors affecting the hydraulic uplift severity. In terms of the geometrical factors, a deeper sump can reduce the hydraulic uplift severity. This reinforces the importance of sump depth, as a deeper sump tends to have lower residence volume but is often not implemented due to space constraint. This paper presents further results from the experimental study on the shallow sump variants in terms of some important flow characteristics such as upstream flow detachment, upstream flow dry-out, and secondary flow. In addition to the geometrical factors, the flow condition factors such as the flow regime defined by how oil enters the chamber, flow rate, shaft speed, and scavenge ratio were investigated. Upstream flow detachment was observed only for cases where airborne droplets were present and at higher shaft speeds, also known as the windage dominated airborne droplets flow regime. It was noted that the geometrical factors are less important than the flow condition factors for upstream flow detachment as well as upstream flow dry-out and secondary flow.

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Relatórios de organizações sobre o assunto "SUEP (Firm)"

Brochard, Celine. Desempeño del Contrato de Asistencia Técnica Operacional para los Servicios de Agua en Puerto Príncipe, Haití. Inter-American Development Bank, outubro de 2013. http://dx.doi.org/10.18235/0010064.

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En abril del 2011, la Dirección Nacional de Agua Potable y Saneamiento (DINEPA, por sus siglas en francés) de Haití firmó un contrato de Asistencia Técnica Operacional (ATO) por tres años con el consorcio Lyonnaise des Eaux-Agbar-United Water ("el equipo ATO"), filiales del grupo Suez Environment. El contrato busca mejorar de manera rápida la calidad de los servicios de agua de la Región Metropolitana de Puerto Príncipe (RMPP) y de transformar a la entidad responsable del servicio "Centro Técnico de Explotación (CTE-RMPP)" en una entidad eficaz y sostenible para la prestación de servicios de agua potable y saneamiento. Dos años y medio después de la firma del contrato de ATO, el BID contrató a Castalia para evaluar el desempeño del mismo. El presente informe presenta los resultados del análisis realizado.

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Collins, S. R., R. B. Hall e J. A. Rand. Silicon-film{sup {trademark}} photovoltaic manufacturing technology. Final technical status report, January 1, 1992--July 31, 1995. Office of Scientific and Technical Information (OSTI), junho de 1996. http://dx.doi.org/10.2172/258194.

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Abdul Hamid, Umar Zakir. Responder-to-Vehicle Technologies for Connected and Autonomous Vehicles. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, maio de 2023. http://dx.doi.org/10.4271/epr2023010.

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<div class="section abstract"><div class="htmlview paragraph">Recently, there has been a slight increase in interest in the use of responder-to-vehicle (R2V) technology for emergency vehicles, such as ambulances, fire trucks, and police cars. R2V technology allows for the exchange of information between different types of responder vehicles, including connected and automated vehicles (CAVs). It can be used in collision avoidance or emergency situations involving CAV responder vehicles. The benefits of R2V are not limited to fully autonomous vehicles (e.g., SAE Level 4), but can also be used in Level 2 CAV scenarios. However, despite the potential benefits of R2V, discussions on this topic are still limited.</div><div class="htmlview paragraph"><b>Responder-to-Vehicle Technologies for Connected and Autonomous Vehicles</b> aims to provide an overview of R2V technology and its applications for CAV systems, particularly in the context of collision avoidance features. The responder vehicles in question can be autonomous or non-autonomous. It is hoped that it will provide valuable information and knowledge on vehicle connectivity and automation in the current automotive and mobility ecosystem, enabling the development of safer and more reliable autonomous driving technology. The report is intended for both industrial and academic experts and is expected to stimulate further discussions on the development and standardization of R2V technology.</div><div class="htmlview paragraph"><a href="https://www.sae.org/publications/edge-research-reports" target="_blank">Click here to access the full SAE EDGE</a><sup>TM</sup><a href="https://www.sae.org/publications/edge-research-reports" target="_blank"> Research Report portfolio.</a></div></div>

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Rand, J. A., A. M. Barnett, J. C. Checchi e J. S. Culik. Large-area silicon-film{sup {trademark}} panels and solar cells. Phase I annual technical report, July 1, 1995--December 31, 1995. Office of Scientific and Technical Information (OSTI), junho de 1996. http://dx.doi.org/10.2172/258193.

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