Academic literature on the topic 'Mrs. Claus series'
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Journal articles on the topic "Mrs. Claus series"
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Gamber, Wendy. "“The Notorious Mrs. Clem”: Gender, Class, and Criminality in Gilded Age America." Journal of the Gilded Age and Progressive Era 11, no. 3 (July 2012): 313–43. http://dx.doi.org/10.1017/s1537781412000242.
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This essay explores the story of Nancy Clem, an outwardly respectable Indianapolis confidence woman and alleged murderess, in the context of changing constructions of class, gender, and criminality. It examines various ways in which lawyers, newspaper reporters, and ordinary citizens struggled to understand a woman who did not fit preexisting conceptions of gender and crime. A series of high-profile cases involving bourgeois criminals and (more than likely) Clem's own social aspirations allowed cultural commentators to portray her as a “genteel murderess.” Upon her release from prison after an abortive fifth trial, Clem could not sustain her newly acquired social identity, in part because her erstwhile refinement was a journalistic creation and in part because the changing nature of class, gender, and space in Gilded Age Indianapolis provided her with fewer opportunities for self-fashioning. Clem's social odyssey from half-literate “Butternut” to genteel murderess to uncultured “capitalist” reflects slippery, yet significant, transitions between social fluidity and relative rigidity, antebellum respectability and Gilded Age gentility.
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Christy, Donna M. "Whimsical Path to Math: Implementing the Navigations Series." Teaching Children Mathematics 12, no. 6 (February 2006): 323–31. http://dx.doi.org/10.5951/tcm.12.6.0323.
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A Whimsical Path to Math, a series of themebased mathematics lessons, was inspired by my experience during a local school's Reading Week program. Dressed in costume as Mrs. Springtime-Fairy and reading Waiting for Wings (Ehlert 2001) to a class of prekindergarten students, I was awed by the delight and enthusiasm that the students displayed. Being a mathematics teacher, their reaction inspired me to create a mathematically rich series of thematic lessons laced with storybook fantasy for students in prekindergarten through grade 2.
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Kumar, Saurabh, Jitendra Kumar, Vikas Kumar Sharma, and Varun Agiwal. "Random order autoregressive time series model with structural break." Model Assisted Statistics and Applications 15, no. 3 (October 9, 2020): 225–37. http://dx.doi.org/10.3233/mas-200490.
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This paper deals with the problem of modelling time series data with structural breaks occur at multiple time points that may result in varying order of the model at every structural break. A flexible and generalized class of Autoregressive (AR) models with multiple structural breaks is proposed for modelling in such situations. Estimation of model parameters are discussed in both classical and Bayesian frameworks. Since the joint posterior of the parameters is not analytically tractable, we employ a Markov Chain Monte Carlo method, Gibbs sampling to simulate posterior sample. To verify the order change, a hypotheses test is constructed using posterior probability and compared with that of without breaks. The methodologies proposed here are illustrated by means of simulation study and a real data analysis.
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Ferry, Emma. "“A Pair of Scissors, and One Daring, If Trembling, Snip—!”: Making Mrs. Oliphant’s Dress." Victorian Review 49, no. 1 (March 2023): 83–108. http://dx.doi.org/10.1353/vcr.2023.a925220.
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Abstract: Devised and edited by the Reverend W.J. Loftie, the Art at Home Series, published by Macmillan & Co. between 1876 and 1883, was a highly successful collection of domestic advice manuals aimed at a growing lower-middle-class readership. This paper focuses upon the volume in the series devoted to the subject of the book Dress , written in 1878 by the well-known Scottish novelist Mrs. Margaret Oliphant (1828–97). Drawing upon previously unpublished sources from the Macmillan Archive and contemporary reviews, this article charts the book’s production and initial reception to suggest Dress reveals as much about the expedient world of Victorian writing and publishing practices as it does about fashion. Demonstrating Oliphant’s skill in “writing with scissors,” it reveals the intertextual relationship that Dress has with many other literary and visual sources. Whether we interpret this as an example of plagiarism or a creative strategy, I argue that while Dress should be considered a cultural document of the late-Victorian period, it can never be treated as straightforward evidence of how people dressed in the past.
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Ohno, Yasuo, and Takashi Taniguchi. "Relations among Dirichlet series whose coefficients are class numbers of binary cubic forms II." Mathematical Research Letters 21, no. 2 (2014): 363–78. http://dx.doi.org/10.4310/mrl.2014.v21.n2.a12.
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Turley, Patrick K. "The Don Spring Memorial Oration - Part II: Early Management of the Developing Class III Malocclusion." Australasian Orthodontic Journal 13, no. 1 (October 1, 1993): 19–22. http://dx.doi.org/10.2478/aoj-1993-0021.
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Abstract This article is the second in the two-part series comprising The Don Spring Memorial Oration delivered by Dr Patrick Turley at the Hamilton Island meeting of the Australian Foundation for Research and Education, in September 1992. The article has been reprinted with the permission of the Editor of the Pacific Coast Society of Orthodontists’ Bulletin. Both articles in the series have been smnmarized by Andrea L. Feature D.D.S., M.S..
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Lipovetsky, Stan. "Modified ridge and other regularization criteria: A brief review on meaningful regression models." Model Assisted Statistics and Applications 16, no. 3 (August 27, 2021): 225–27. http://dx.doi.org/10.3233/mas-210536.
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The work describes a series of techniques designed to obtain regression models resistant to multicollinearity and having some other features needed for meaningful results. These models include enhanced ridge-regressions with several regularization parameters, regressions by data segments and by levels of the dependent variable, latent class models, unitary response, models, orthogonal and equidistant regressions, minimization in Lp-metric, and other criteria and models. All the approaches have been practically implemented in various projects and found useful for decision making in economics, management, marketing research, and other fields requiring data modeling and analysis.
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Wilsani, Wilsani, Faizal Chan, Muhammad Sholeh, and Zelly Putriani. "Analysis of the Implementation of the Pancasila Student’s Profile for Strengthening Project in the Merdeka Curriculum in Indonesia’s Elementary Schools." At-Taqaddum 15, no. 2 (December 25, 2023): 126–39. http://dx.doi.org/10.21580/at.v15i2.17884.
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This research aims to determine how teachers implement the Pancasila Student Profile Strengthening Project in the Independent Curriculum in class V in elementary schools. This research was conducted at Jambi City State Elementary School (SD) 1/IV in the even semester in the academic year of 2022/2023. This research uses a qualitative research methodology with a phenomenological research type. Research data was obtained directly through data collection techniques: observation, interviews, and documentation with the class V homeroom teachers, namely Mrs. S, Mr. AP, Mrs. NEP, Mr. VK, and Mrs. F. After carrying out a series of data collection techniques, the data was then analyzed using the method of Miles and Huberman: reducing data, presenting data, and verifying data. This research shows that in implementing the project to strengthen the profile of Pancasila students, teachers are guided by the guidebook to develop their ways of teaching them through several stages (2022). In the first stage, teachers understand the project for strengthening the profile of Pancasila students. Next, the teacher designs the project to strengthen the profile of Pancasila students. Then, the teacher manages the project to strengthen the profile of Pancasila students. Lastly, the teacher processes the assessment and reports the project results to strengthen the profile of Pancasila students. This research concludes that the fifth-grade teacher at SDN 1/IV Jambi City has successfully implemented the project to strengthen the profile of Pancasila students. It can be seen in the achievement of learning outcomes. Implementing the project to strengthen the profile of Pancasila students can be used as an example for other teachers to implement similar learning.
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Bhatia, Kartik, Hans Kortman, Christopher Blair, Geoffrey Parker, David Brunacci, Timothy Ang, John Worthington, et al. "Mechanical thrombectomy in pediatric stroke: systematic review, individual patient data meta-analysis, and case series." Journal of Neurosurgery: Pediatrics 24, no. 5 (November 2019): 558–71. http://dx.doi.org/10.3171/2019.5.peds19126.
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OBJECTIVEThe role of mechanical thrombectomy in pediatric acute ischemic stroke is uncertain, despite extensive evidence of benefit in adults. The existing literature consists of several recent small single-arm cohort studies, as well as multiple prior small case series and case reports. Published reports of pediatric cases have increased markedly since 2015, after the publication of the positive trials in adults. The recent AHA/ASA Scientific Statement on this issue was informed predominantly by pre-2015 case reports and identified several knowledge gaps, including how young a child may undergo thrombectomy. A repeat systematic review and meta-analysis is warranted to help guide therapeutic decisions and address gaps in knowledge.METHODSUsing PRISMA-IPD guidelines, the authors performed a systematic review of the literature from 1999 to April 2019 and individual patient data meta-analysis, with 2 independent reviewers. An additional series of 3 cases in adolescent males from one of the authors’ centers was also included. The primary outcomes were the rate of good long-term (mRS score 0–2 at final follow-up) and short-term (reduction in NIHSS score by ≥ 8 points or NIHSS score 0–1 at up to 24 hours post-thrombectomy) neurological outcomes following mechanical thrombectomy for acute ischemic stroke in patients < 18 years of age. The secondary outcome was the rate of successful angiographic recanalization (mTICI score 2b/3).RESULTSThe authors’ review yielded 113 cases of mechanical thrombectomy in 110 pediatric patients. Although complete follow-up data are not available for all patients, 87 of 96 (90.6%) had good long-term neurological outcomes (mRS score 0–2), 55 of 79 (69.6%) had good short-term neurological outcomes, and 86 of 98 (87.8%) had successful angiographic recanalization (mTICI score 2b/3). Death occurred in 2 patients and symptomatic intracranial hemorrhage in 1 patient. Sixteen published thrombectomy cases were identified in children < 5 years of age.CONCLUSIONSMechanical thrombectomy may be considered for acute ischemic stroke due to large vessel occlusion (ICA terminus, M1, basilar artery) in patients aged 1–18 years (Level C evidence; Class IIb recommendation). The existing evidence base is likely affected by selection and publication bias. A prospective multinational registry is recommended as the next investigative step.
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Pernik, Indrek, Brant J. Maitland, Andreas Stasch, and Cameron Jones. "Synthesis and attempted reductions of bulky 1,3,5-triazapentadienyl groups 2 and 13 halide complexes." Canadian Journal of Chemistry 96, no. 6 (June 2018): 513–21. http://dx.doi.org/10.1139/cjc-2017-0548.
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Three extremely bulky 1,3,5-triazapentadienes, ArNNNH (ArNNN = N{C(But)=N(Ar)}2; Ar = Mes (mesityl), Dep (2,6-diethylphenyl), or Dip (2,6-diisopropylphenyl)) have been prepared and structurally characterized. These are readily deprotonated, yielding a series of lithium and potassium triazapentadienyl complexes, one of which, (DipNNN)Li, has been structurally characterized. Similarly, three monomeric triazapentadienyl magnesium iodide complexes, (ArNNN)MgI(OEt2), and a dimeric calcium counterpart, {(MesNNN)Ca(THF)(μ-I)}2, have been prepared. Attempts to reduce the former gave homoleptic bis(triazapentadienyl) magnesium complexes, (ArNNN)2Mg (Ar = Mes or Dep) as the main products. One reaction also gave a very low yield of the magnesium(I) dimer, {(DepNNN)Mg–}2, which was structurally characterized. In related chemistry, two triazapentadienyl boron difluoride compounds, (ArNNN)BF2 (Ar = Mes or Dep), have been synthesized, and unsuccessful attempts have been made to reduce these to boron(I) heterocycles. For sake of comparison, attempts have been made to prepare a series of related amino-substituted β-diketiminato group 13 element(I) heterocycles. Although these were also not successful, several group 13 element(III) halide complexes incorporating this ligand class have been characterized.
Books on the topic "Mrs. Claus series"
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Margaret Oliphant's Carlingford series: An original contribution to the debate on religion, class, and gender in the 1860s and '70s. Frankfurt am Main: Peter Lang, 2001.
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S, Connell Evan. Mrs. Bridge: A Novel (G K Hall Large Print Book Series). MacMillan Publishing Company., 1991.
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van Koppen, Barbara. Gender and Water. Edited by Ken Conca and Erika Weinthal. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199335084.013.10.
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This chapter “lifts the roof of the household” across the irrigation and water, sanitation, and hygiene (WASH) sub-sectors in agrarian low- and middle-income settings. Focusing on age-old intersections between gender, class, and agrarian technology, the chapter explores how colonial conquest was served by the ideology of the male breadwinner‒ female housewife as a divide-and-rule process to vest control over people, land, and water. After independence, the same ideology enabled top-down services in both sub-sectors and also marginalized women. This is contrasted with implications of global policy commitments to gender-equal households for the water sector. In particular, evidence of the multiple-use water services (MUS) approach is examined. This inclusive, people-driven water services approach meets both women’s and men’s multiple domestic and productive needs. Overcoming the same administrative silos in human rights frameworks, a gender-equal human right to water for livelihoods is proposed.
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Barrett, Rusty. From Drag Queens to Leathermen. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780195390179.001.0001.
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This book analyzes gendered forms of language use in several different gay male subcultures. The subcultures considered include drag queens, radical faeries, bears, circuit boys, barebackers, and leathermen. The chapters include ethnographic-based studies of language use in each of these subcultures, giving special attention to the ways in which linguistic patterns index forms of masculinity and femininity. In each case, speakers combine linguistic forms in ways that challenge normative assumptions about gender and sexuality. In an extension of prior work, Barrett discusses the intersections of race, gender, and social class in performances by African American drag queens in the 1990s. An analysis of sacred music among radical faeries considers the ways in which expressions of gender are embedded in a broader neo-pagan religious identity. The formation of bear as an identity category (for heavyset and hairy men) in the late 1980s involve the appropriation of linguistic stereotypes of rural Southern masculinity. Among regular attendees of circuit parties (similar to raves), language serves to differentiate gay and straight forms of masculinity. In the early 2000s, barebackers (gay men who eschew condoms) used language to position themselves as rational risk takers with a natural innate desire for semen. For participants in the International Mr. Leather contest, a disciplined, militaristic masculinity links expressions of patriotism with BDSM sexual practice. In all of these groups, the construction of gendered identity involves combining linguistic forms that would usually not co-occur. These unexpected combinations serve as the foundation for the emergence of unique subcultural expressions of gay male identity.
Book chapters on the topic "Mrs. Claus series"
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Israel, Kali. "French Vices." In Names And Stories, 198–239. Oxford University PressNew York, NY, 1998. http://dx.doi.org/10.1093/oso/9780195122756.003.0007.
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Abstract In January 1895, Oscar Wilde’s Mrs. Cheveley, in his newly opened play, An IdealHusband,told a politician, “Nowadays . . . everyone has to pose as a paragon of purity, incorruptibility, and all the other seven deadly virtues—and what is the result? You all go over like nine pins—one after the other. Not a year passes in England without somebody disappearing. Scandals used to lend charm, or at least interest to a man—now they crush him.” Mrs. Cheveley was retrospective as well as prescient. Through the late nineteenth century, a series of highly mediated but detailed scandals, causes ceélèbres, and exposeès permitted diverse constituencies to struggle over the construction of meaningful stories about bodies and danger.1 The 1885±1886 divorce case of Crawford v. Crawford and Dilke shares with other scandals a great mixing and competition of narratives in court, press, and street, which revealed and contributed to class and gender tensions. The divorce court, like the courtroom in murder trials, In retrospect, Charles Dilke’s fate appears a rehearsal for Charles Parnell’s, especially since their two cases were heard by the same judge, but each of the famous cases of the 1880s displayed tensions and possibilities differently.
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"Mrs [Sarah Stickney] Ellis, ‘The Art of Reading Well, as Connected with Social Improvement’, in The Young Ladies’ Reader; or, Extracts from Modern Authors, adapted for Educational or Family Use (London: Grant & Griffith, 1845)." In Victorian Print Media, edited by Andrew King and John Plunkett, 250–53. Oxford University PressOxford, 1990. http://dx.doi.org/10.1093/oso/9780199270378.003.0042.
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Abstract The Young Ladies’ Reader was an offshoot of a series of conduct books published by Stickney Ellis (1812—72) in the late 1830s and 1840s, including The Women of England (1838) and The Daughters of England (1842). These books promoted women’s importance through their moral and domestic influence. Ellis also ran a school for young women, Rawdon House, which educated its pupils according to her desired model of femininity. She flouted the idea that young ladies at home should read only ‘Pope, Addison, Goldsmith, Johnson, and writers of this sterling class’ (p. 19) and instead provided examples of more recent writing.
Conference papers on the topic "Mrs. Claus series"
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Samouei, Hamidreza, Igor Ivanishin, and Abdollah Orangi. "Novel Class of Retarded, Newtonian, Single-Phase HCl-Based Stimulation Fluids: A Laboratory Characterization." In SPE International Conference and Exhibition on Formation Damage Control. SPE, 2022. http://dx.doi.org/10.2118/208813-ms.
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Abstract Novel retarded acids were designed and evaluated by measuring their dissolution and corrosion rates in the laboratory at a temperature of 250°F. Results indicate that depending on the type of the retarder, the acid solutions containing 15 wt% HCl react 1.2–10.7 slower than 15 wt% straight HCl. In addition, novel retarded acids pass the industry standard for corrosion rate of L80, P110, T95, and 13Cr steel grades even with no corrosion inhibitor added to the formulation. Field application of the novel acid systems will provide a series of benefits, including ease to mix and pump, operational safety, deep stimulation of target zone, etc. Presented results are integral for designing the stimulation operations in carbonate reservoirs and the removal of carbonate scales in the oil and gas or geothermal energy industries.
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Brockhoff, J., M. Taylor, S. Dubberley, K. Ma, and C. Jaska. "Mechanistic Study and Chemical Design of a New Lubricant for High Salinity Drilling Fluids." In IADC/SPE International Drilling Conference and Exhibition. SPE, 2024. http://dx.doi.org/10.2118/217951-ms.
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Abstract The drive to reduce freshwater consumption has led to a significant increase in the use of waste streams, such as high salinity produced water brines, as base fluids in drilling fluid systems. However, the performance of conventional lubricants is typically reduced in such brines. This paper describes the design and development of a new class of lubricant specifically designed for use in high salinity water-based drilling fluids. A comprehensive literature review and a detailed laboratory testing program were undertaken to investigate the mechanism of drilling fluid lubricants under downhole conditions. The knowledge gained from this study was used to design a new class of lubricant that undergoes a chemical reaction with high salinity brines in order to activate the lubricant species and maximize performance. A series of field trials were conducted on wells targeting the Montney formation in Western Canada. The drilling fluids consisted of solids-free sodium chloride, calcium chloride, and produced water brines with densities ranging from 1080 – 1330 kg/m3. The wells had lateral lengths ranging from 1580 – 4000 meters. The new lubricant significantly out-performed conventional lubricants on 100% of the field trials and was able to achieve friction factors close to those of oil-based drilling fluids. A series of in-depth case studies are provided which highlight the unique performance characteristics of this novel drilling fluid lubricant.
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Alhashem, M., R. Lastra, M. Ahmed, and L. Ghouti. "Evaluation of Machine Learning Techniques for ESP Diagnosis Using a Synthetic Time Series Dataset." In International Petroleum Technology Conference. IPTC, 2024. http://dx.doi.org/10.2523/iptc-24210-ms.
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Abstract Electrical submersible pumps (ESPs) play a pivotal role in oil and gas extraction, elevating large volumes of fluids from subsurface reservoirs to the surface. The ESP is the primary method for artificially lifting oil in the Middle East to meet production demands. The reliable operation of these pumps is paramount for optimizing production and minimizing downtime. Despite the critical importance of ESPs, there has been a gap in the literature concerning the application of machine learning techniques exclusively focused on synthetic digital twin data for condition monitoring and fault diagnosis in the oil and gas sector. This study fills this gap by conducting a comprehensive evaluation of machine learning algorithms, specifically Gaussian Mixture Models (GMM) and Support Vector Machines (SVM), for ESP diagnostics. Results indicate that GMM outperforms K-means in anomaly detection, achieving an accuracy rate of 91%, while K-means reached a maximum of 49%. In multi-class event classification, SVM classifiers demonstrated high efficacy, with an F1-score reaching up to 94.35%. These methods were rigorously assessed through cross-validation, utilizing evaluation metrics such as accuracy, precision, recall, and F1-score. The study not only underscores the efficacy of GMM and SVM in ESP diagnostics but also introduces a novel approach to leveraging synthetic digital twin data for condition monitoring in the oil and gas industry.
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Mako, C. David, Shane Mccullough, and Abe Boughner. "Hybrid Electric Design Enters Navy Service: A Report on the Early Service Experience From LHD 8 -USS Makin Island." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-22122.
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The LHD 8 amphibious assault ship utilizes a hybrid propulsion plant, where the ship has the capability to be propelled by electric propulsion motors or gas turbine engines all of which is controlled and monitored by a state-of-the-art Machinery Control System (MCS). Unlike the previous ships of the class which were steam powered, the hybrid drive is designed to allow economical low speed fuel efficiency on electric motors as well as a traditional gas turbine power plant for all other mission areas. This will yield significant fuel savings over the life of the ship. The integrated machinery control system is likewise expected to reduce life cycle costs through reduced manning. After a successful series of sea trials, the LHD 8, Makin Island was delivered to the US Navy on April 2009 and departed the builders’ yard in July 2009 for a transit around the tip of South America to her homeport of San Diego, CA. The paper discusses the results of Builders and Acceptance Trials as well as the in-service experience of the ship on her maiden voyage. Examples are given of predicted vs. expected fuel consumption rates, design issues encountered and corrective measures taken as well as feedback from operators on the overall machinery plant design the MCS and its ease of operation. Included in the paper are ship drawings, photos and diagrams.
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Sorgard, Eirik, Elizabeth Anne Oko, John Isaac Baird, Jason Alexander Greenaway, Rob Ibrahim Rabei, Pradeep Pillai, and Stacy Marie Fresquez. "Vito Project: Vito Field Development." In Offshore Technology Conference. OTC, 2023. http://dx.doi.org/10.4043/32319-ms.
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Abstract The Vito field is located in 4,100 feet of water producing from reservoirs nearly 30,000 feet below sea level. Vito was discovered in 2009 approximately 135 miles southwest of New Orleans, Louisiana. The project underwent major field development strategy change to remain competitive in 2015 oil price environment and price resiliency going forward. The Vito project was seen as a strategic fit to the operator's existing Mars Corridor. The original Vito development strategy was to build a clone of the mega-project of Appomattox to maximize Net Present Value and Ultimate Recovery. However, as the market changed vastly in 2015, the project team refreshed the design concept to focus on capital efficiency. This paper provides an overview of the overall revised Field Development Concept of Vito. Vito has best in class resource density when compared to other Gulf of Mexico fields, which allows for a compact field development of 8 subsea wells at a single drill center. This allowed the project to not include a drilling rig on the host platform and instead deploy a new generation Deepwater rig for drilling and completions. There is severe depletion drilling risk on Vito which led the project to drill and complete all 8 wells prior to first oil. To improve ultimate recovery with low capital efficiency in well bore gas lift was included in the design. In addition, the Mars Corridor export system was looked at and required debottlenecking on both the oil and gas side. This paper is part of a Vito Project series at OTC 2023, and the other papers are listed in the references.
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Rabei, Rob, Steven Freeman, Eli Adams, and Pradeep Pillai. "Vito Project: Drilling & Completions – World Class Riserless Batch Set Performance, Best-in Class Deepening Performance, In-Well Barrier Gas-Lift System, 17 Ksi Barrier Checks, 15 MMSCF/Day Injection Rate." In Offshore Technology Conference. OTC, 2023. http://dx.doi.org/10.4043/32414-ms.
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Abstract In 2009, the Vito field was discovered in more than 4,000 ft of water approximately 150 miles offshore from New Orleans, Louisiana. The project produces from Miocene-aged reservoirs nearly 30,000 feet below sea level. The Vito project was the first deep water project to require in-well retrievable gas-lift systems with metal-to-metal seals capable of sustaining a differential of 17 Ksi and injection rates of 15 MMscf/day. This paper provides an overview of Vito's drilling and completions, in-well gas-lift system, development process, validation and testing requirements, key challenges encountered during the project, and the technologies. This paper is part of a Vito Project series at OTC 2023, and the other papers are listed in the references. The Vito Phase 1 project consisted of 8 producer wells with slim hole and open hole gravel pack design. The project wells were drilled with an Ultra-Deepwater Dual-Activity rig. The Gas-Lift Development Team worked with vendors to identify technology gaps with existing gas-lift system to project requirements. A validation process was created by the project using the following standards: API 19G 1,2,3, QAQC, ASME, FEA, CFD & Non-metallic Standards, company standards along with partner TR2385 document to establish design, manufacturing, and validation testing guidelines to ensure the highest level of reliability possible for a gas-lift system. The project team worked alongside the vendors to design and test concepts that eventually became the project's gas-lift system. The riserless section was drilled in a batch form and was benchmarked as a world-class performance against the company fleet performance. The majority of the subsequent deepening drilling and completion operations were benchmarked as best-in-class performing wells, thanks to the implementation of competitively scoped well designs, vendor engagement and well on well learning curve improvements. The gas-lift system key challenges included understanding the phase envelope of the injection gas and potential issues that may provide for long term integrity of the well, locating testing facilities to handle 10 Ksi injection pressure with up to 15 MMscf/day of injection rates, welding and heat treatment of Inconel side pocket mandrels, long term Arrhenius testing of non-metallics, developing robust QCP plans for manufacturing, and conducting an in-well SIT (systems integration test) of the KOT (kickover tool) systems.
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Michael, Michael, Wan Han Chow, and Khian Aik Loh. "Delivering Best-In-Class Shallow Water Tender-Assisted Drilling Wellhead Platform, a New Chapter." In Offshore Technology Conference Asia. OTC, 2022. http://dx.doi.org/10.4043/31400-ms.
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Abstract This paper demonstrates another success story on delivering a new Best-In-Class Tendered Assisted Drilling (TAD) Wellhead Platform. A clear target/goal to achieve project value driver, ie. reduce CAPEX and accelerate project maturation speed. With demonstration of good front-end development work and project delivery strategies set from the beginning of the project, a series of strategic approach to deliver competitive scoping and requirement with the intent of achieving cost saving and minimize fabrication duration by meeting targeted weight reduction for both Topside and Substructures. The ultimate purpose of all these strategic approaches is to develop a set of standard template design and efficient project execution strategy for new TAD Wellhead platform that is replicable in Shell. Civil, Structural and Offshore Engineering discipline in Shell has leveraging past project good practices, lesson learnt and benchmarking against internal and external project to develop a fit-for-purpose design. Initial findings from the benchmarking study indicated at water depth of 143m in Sarawak water, jackets are launch-installed, typically. The continuous improvement exercises aimed to reduce both Topsides and Substructure weight, which eventually creates opportunity for jacket to convert from launch-installed in the initially concept to lift-installed jacket. Some of key successes from this improvement journey includes topside deck level/footprint optimization, optimized topside structural framing and deck leg spacing to have a small work-points from top, elimination of jacket dummy leg thus reduce overall jacket footprint/weight, lean foundation design, e.g. 1 skirt pile per leg etc. However, the key challenge to the lift-installed jacket concept at the water region of 140m remains at jacket lift weight that is limited by the typical heavy lift vessel crane capacity and it requires a stringent weather window limit. Hence, weight management, i.e. set NTE weight on the jacket lift weight is paramount and it needs to be managed from engineering phase all the way to offshore installation. The outcome of the continuous improvement journey showed tremendous satisfying result to save project cost and schedule. With massive reduction of jacket weight (>50%) thus it reduces fabrication schedule, and unlocks provision of yard flexibility that invites more competitive bidding from EPC contractors (especially small fabricator) thus potentially reduce overall EPC cost. The significant improvement in steel quantity reducing overall jacket steel material procurement cost and fabrication cost. Elimination of jacket loadout via skidding facility (for launch type jacket) that further reduces fabrication cost. This is the first lift-installed jacket in Shell Malaysia at this water region. Leveraging on project knowledge and learning, specific technical specifications for L2 TAD Wellhead Platform design and installation aids have been developed in shell, with the intent to standardize and simplify technical requirements.
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Bond, James, Dan Oldford, and Ed Moakler. "Viability of the Northwest Passage as North America's Resource Export Highway." In Offshore Technology Conference. OTC, 2023. http://dx.doi.org/10.4043/32563-ms.
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Abstract For decades the Northwest Passage (NWP) has been a formidable challenge for the shipping and maritime industries. Arctic community resupply and export of Arctic resources by ship has been seen as the viable in the summer season. Changing ice conditions and the new ability to process high volumes of data in real time has allowed the quantification of risk and determination of the required ship strengthening to a specific ice class notation for seasonal and year-round export planning. The International Maritime Organization (IMO) has provided a methodology to assess the risk of operating a ship in a specific ice regime, as seen from the bridge, or as reported in an ice chart. An ice regime, from a navigation standpoint, is the ice that the ship will likely encounter and defines several important factors including the ice-concentration, thickness, age, state of decay, and roughness. The authors have developed methods to convert ice charts into maps using the IMO POLARIS risk assessment methodology. By processing decades of ice charts, the trends of changing ice and the variation in ship access through the NWP was determined. Focusing on critical resource development locations, routes and the ships needed for seasonal and year-round export have been developed. This paper provides an examination of the viability of various routes through the NWP for a series of ships of different ice class using the IMO POLARIS methodology. The results are presented in terms of the most recent 5-year averaged ice condition. The 5-year averaged ice conditions are compared to a 10-year dataset to highlight and contrast past and current ice conditions. Risk maps for recent individual years are also presented to illustrate year on year variability of ice conditions. Observations are drawn from the plots to summarize the necessary ice class for year-round NWP transit, and also ship traffic for specific locations (eg. Alaska North Slope LNG shipment to Asia with a 5-month (September to January) shipping window). This paper provides the answer to "What ice class ship is needed to operate in specific locations the Arctic at different times of the year.?"
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Shittu, Dauda, David Aghaiyo, Mejebi Austin Ogbe, and Agatha Ekomemhen. "Behavioural Change as a Catalyst for Sustained HSE Performance - The Bonga Safety Leadership Story." In Offshore Technology Conference. OTC, 2024. http://dx.doi.org/10.4043/35176-ms.
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Abstract Establishing a safe working environment, through the elimination and reduction of risks, is a continuous focus in high-risk organisations like in the oil and gas industry. While there have been significant improvements in safety performance driven by established systems and processes, as well as advancements in technology, safety incidents have not been eliminated. Thus, there has been a shift in focus to human behaviours as a core area to improve health, safety and environment (HSE) performance in the industry following several studies that attributed the cause of most safety incidents to employees’ behaviours. This paper presents the Safety Leadership Journey in Bonga - comprising offshore deepwater oil and gas production, processing and export facilities, and onshore offices, and provides a detailed description of how several behavioural change programmes have been used as a catalyst to improve and sustain best-in-class safety and operational performance in the asset. This paper is one of a series of Bonga-themed papers for OTC 2024. Triggered by a need for change at a time when the organisation was experiencing behavioural and attitude issues that remained threats to Goal Zero – our aim to relentlessly pursue no harm to people and no significant incidents - the Bonga Asset embarked on a journey to influence safety behaviour through several initiatives that focus on promoting interaction between leaders and the workforce. These include the deployment of Family Units - an organisational culture change vehicle that focuses on influencing the right behaviours in personnel through a healthy relationship – the family feel, among the workforce; reshaping System Patterns – a thread of systemic issues and behaviours that drive recurring problems in the organisation and influence decision making, and the implementation of the Human Performance Principles – the way the people, culture, equipment, work systems and processes interact as a system, to create a psychologically safe environment. These initiatives have enabled the leaders to exert their influence on the behaviour of the workforce towards safety by providing an opportunity for the workforce to bring up issues of concern to leadership, and continue to provide the leaders with the necessary information and insights on issues concerning safety. The journey has contributed to over 6 years of safe continuous operation of the deepwater FPSO without a Loss Time Injury or Process Safety Tier 1/2 events, despite the exposure of over 6,475,205 man-hours covering several medium/high-risk activities including over 183 export operations and a series of maintenance activities that included Scheduled Maintenance Activities, Turnaround Maintenance and Upgrade of the Buoy. The approach adopted and lessons learnt are well described and can be used as a template for other organisations operating in high-risk environments to drive behavioural/culture change for best-in-class safety and operational performance.
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Soroush, Mohammad, Mahdi Mahmoudi, Morteza Roostaei, Hossein Izadi, Seyed Abolhassan Hosseini, Juliana Leung, and Vahidoddin Fattahpour. "Challenges from Well Shut-in Amid the Oil Downturn: Long Term Impacts on Near Wellbore Skin Buildup and Sand Control." In SPE Thermal Integrity and Design Symposium. SPE, 2021. http://dx.doi.org/10.2118/203854-ms.
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Abstract In wake of the biggest oil crash in history triggered by the COVID-19 pandemic; Western Canada in- situ production is under tremendous price pressure. Therefore, the operators may consider shut in the wells. Current investigation offers an insight into the effect of near-wellbore skin buildup because of such shut-in. A series of simulation studies was performed to quantitatively address the impact of well shut-in on the long-term performance of well, in particular on key performance indicators of the well including cumulative steam to oil ratio and cumulative oil production. The long-term shut-in contributes to three main modes of plugging: (1) near-wellbore pore plugging by clays and fines, (2) scaling, and (3) chemical consolidation induced by corrosion. A series of carefully designed simulations was also utilized to understand the potential of skin buildup in the near-wellbore region and within different sand control devices. The simulation results showed a higher sensitivity of well performance to shut-in for the wells in the initial stage of SAGD production. If the well is shut in during the first years, the total reduction in cumulative oil production is much higher compared to a well which is shut-in during late SAGD production life. As the induced skin due to shut-in increases, the ultimate cumulative oil production drops whose magnitude depends on well completion designs. The highest effect on the cumulative oil production is in the case of completion designs with flow control devices (liner deployed and tubing deployed completions). Therefore, wellbore hydraulics and completion design play key roles in the maintenance of uniform inflow profile, and the skin buildup due to shut-in poses a high risk of inflow problem and increases the risk of hot-spot development and steam breakthrough. This investigation offers a new understanding concerning the effect of shut-in and wellbore skin buildup on SAGD operation. It helps production and completion engineers to better understand and select candidate wells for shut-in and subsequently to minimize the skin buildup in wells.
Reports on the topic "Mrs. Claus series"
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Luff, David. Addresing the Implementation of Preferential Trade Agreements: The Law and Pratice of the European Union-MJS. Inter-American Development Bank, September 2011. http://dx.doi.org/10.18235/0008413.
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Trade agreements imply preferential trade treatment among the parties. As such, they must in principle meet the conditions of Articles XXIV of GATT and V of GATS. This means that an agreement must provide for reciprocal trade benefits for substantially all trade in goods between the parties, and it must have substantial sectoral coverage in relation to services. It can apply to selected countries as opposed to others. Trade preferences are also possible under the Enabling Clause. While in this case reciprocal trade benefits are not required, the preferences must be granted to developing countries only, and no discretionary selection of them is possible otherwise than through objective criteria.
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Wu, Yingjie, Selim Gunay, and Khalid Mosalam. Hybrid Simulations for the Seismic Evaluation of Resilient Highway Bridge Systems. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, November 2020. http://dx.doi.org/10.55461/ytgv8834.
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Bridges often serve as key links in local and national transportation networks. Bridge closures can result in severe costs, not only in the form of repair or replacement, but also in the form of economic losses related to medium- and long-term interruption of businesses and disruption to surrounding communities. In addition, continuous functionality of bridges is very important after any seismic event for emergency response and recovery purposes. Considering the importance of these structures, the associated structural design philosophy is shifting from collapse prevention to maintaining functionality in the aftermath of moderate to strong earthquakes, referred to as “resiliency” in earthquake engineering research. Moreover, the associated construction philosophy is being modernized with the utilization of accelerated bridge construction (ABC) techniques, which strive to reduce the impact of construction on traffic, society, economy and on-site safety. This report presents two bridge systems that target the aforementioned issues. A study that combined numerical and experimental research was undertaken to characterize the seismic performance of these bridge systems. The first part of the study focuses on the structural system-level response of highway bridges that incorporate a class of innovative connecting devices called the “V-connector,”, which can be used to connect two components in a structural system, e.g., the column and the bridge deck, or the column and its foundation. This device, designed by ACII, Inc., results in an isolation surface at the connection plane via a connector rod placed in a V-shaped tube that is embedded into the concrete. Energy dissipation is provided by friction between a special washer located around the V-shaped tube and a top plate. Because of the period elongation due to the isolation layer and the limited amount of force transferred by the relatively flexible connector rod, bridge columns are protected from experiencing damage, thus leading to improved seismic behavior. The V-connector system also facilitates the ABC by allowing on-site assembly of prefabricated structural parts including those of the V-connector. A single-column, two-span highway bridge located in Northern California was used for the proof-of-concept of the proposed V-connector protective system. The V-connector was designed to result in an elastic bridge response based on nonlinear dynamic analyses of the bridge model with the V-connector. Accordingly, a one-third scale V-connector was fabricated based on a set of selected design parameters. A quasi-static cyclic test was first conducted to characterize the force-displacement relationship of the V-connector, followed by a hybrid simulation (HS) test in the longitudinal direction of the bridge to verify the intended linear elastic response of the bridge system. In the HS test, all bridge components were analytically modeled except for the V-connector, which was simulated as the experimental substructure in a specially designed and constructed test setup. Linear elastic bridge response was confirmed according to the HS results. The response of the bridge with the V-connector was compared against that of the as-built bridge without the V-connector, which experienced significant column damage. These results justified the effectiveness of this innovative device. The second part of the study presents the HS test conducted on a one-third scale two-column bridge bent with self-centering columns (broadly defined as “resilient columns” in this study) to reduce (or ultimately eliminate) any residual drifts. The comparison of the HS test with a previously conducted shaking table test on an identical bridge bent is one of the highlights of this study. The concept of resiliency was incorporated in the design of the bridge bent columns characterized by a well-balanced combination of self-centering, rocking, and energy-dissipating mechanisms. This combination is expected to lead to minimum damage and low levels of residual drifts. The ABC is achieved by utilizing precast columns and end members (cap beam and foundation) through an innovative socket connection. In order to conduct the HS test, a new hybrid simulation system (HSS) was developed, utilizing commonly available software and hardware components in most structural laboratories including: a computational platform using Matlab/Simulink [MathWorks 2015], an interface hardware/software platform dSPACE [2017], and MTS controllers and data acquisition (DAQ) system for the utilized actuators and sensors. Proper operation of the HSS was verified using a trial run without the test specimen before the actual HS test. In the conducted HS test, the two-column bridge bent was simulated as the experimental substructure while modeling the horizontal and vertical inertia masses and corresponding mass proportional damping in the computer. The same ground motions from the shaking table test, consisting of one horizontal component and the vertical component, were applied as input excitations to the equations of motion in the HS. Good matching was obtained between the shaking table and the HS test results, demonstrating the appropriateness of the defined governing equations of motion and the employed damping model, in addition to the reliability of the developed HSS with minimum simulation errors. The small residual drifts and the minimum level of structural damage at large peak drift levels demonstrated the superior seismic response of the innovative design of the bridge bent with self-centering columns. The reliability of the developed HS approach motivated performing a follow-up HS study focusing on the transverse direction of the bridge, where the entire two-span bridge deck and its abutments represented the computational substructure, while the two-column bridge bent was the physical substructure. This investigation was effective in shedding light on the system-level performance of the entire bridge system that incorporated innovative bridge bent design beyond what can be achieved via shaking table tests, which are usually limited by large-scale bridge system testing capacities.
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Communications Strategy and Disclosure Policy. Vientiane, Lao PDR: Mekong River Commission Secretariat, July 2009. http://dx.doi.org/10.52107/mrc.ajhz6n.
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This Communications Strategy seeks to promote the MRC as a world class river basin organisation that serves the peoples of its Member States in their need to sustainably develop the water resources of the Mekong River Basin.