Academic literature on the topic 'Male strippers'
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Journal articles on the topic "Male strippers"
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Tewksbury, Richard. "A Dramaturgical Analysis of Male Strippers." Journal of Men's Studies 2, no. 4 (May 1, 1994): 325–42. http://dx.doi.org/10.3149/jms.0204.325.
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T. Scull, Maren. "Male Strippers and the Toll of Exotic Dance." Humanity & Society 44, no. 3 (June 19, 2020): 268–97. http://dx.doi.org/10.1177/0160597620930928.
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While researchers have looked at the impact stripping has for female exotic dancers, very little attention has been given to the consequences the profession has for male strippers. In this research, I draw from 22 in-depth interviews with male exotic dancers and 18 months of fieldwork at a strip club to examine the extent to which male strippers experience “the toll” of exotic dance. Specifically, I focus on dancers’ interactions with customers, their experiences with stigmas, the impact stripping has on their romantic relationships, how they negotiate boundaries with patrons, and the consequences stripping has for their self-esteem. Overall, I found that patriarchal privilege and the sexual double standard significantly mitigated the toll of the profession.
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Clark, Rebecca. "Male Strippers: Ladies' Night at the Meat Market." Journal of Popular Culture 19, no. 1 (June 1985): 51–56. http://dx.doi.org/10.1111/j.0022-3840.1985.00051.x.
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Laguna Maqueda, Oscar E. "The male body politic: Straight strippers, gay spaces, and queer masculinities." Sexuality, Gender & Policy 3, no. 1 (April 28, 2020): 23–35. http://dx.doi.org/10.1002/sgp2.12015.
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Scull, Maren T. "Managing Identity in a Dirty Occupation: Male Strippers Experiences with Social Stigmas." Sociological Spectrum 37, no. 6 (November 2, 2017): 390–411. http://dx.doi.org/10.1080/02732173.2017.1365030.
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Bhanage, Girishkumar Balasaheb, P. U. Shahare, V. V. Aware, K. G. Dhandeand, and P. S. Deshmukh. "Development of stripper harvester for paddy." Journal of Applied and Natural Science 9, no. 4 (December 1, 2017): 1943–48. http://dx.doi.org/10.31018/jans.v9i4.1469.
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Konkan is the coastal part of Maharashtra between Western Ghat and Arabian seacoast. Rice is a major crop grown over 3.86 lakh hectares. Stripper harvesting technology, which strips only seeds and keeps straw erect-ed in the field present bright prospect for the development of small, light, efficient mechanism by reducing number of operation with increased capacity and lesser power compared to conventional cutter bar combine harvester. The big machines like combine harvester and high capacity threshers for harvesting and threshing have limitations. A proto-type of paddy stripper harvester was developed considering the limitation of Konkan like small, fragmented land, hilly, terrace farming and high rainfall. It consisted of stripping mechanism, grain tank, hydraulic system, steering system, gear box, engine, cage wheel and chassis. The arrangement of V-belt and set of pulleys were made to transmit power from gear box to stripper rotor. The effect of forward speed and peripheral speed on shattered and un-stripped grain loss was studied. The shattered grain loss was decreased with increase in forward speed whereas decreased initially and then increased with increase in peripheral speed. The un-stripped grain loss was decreased with increase in forward and peripheral speed. The performance of the developed prototype was found better at forward speed of 2.25 km/h and peripheral speed of 19.78 m/s. During final testing of prototype, shattered and un-stripped grain loss was found 5.95 and 1.89 %, respectively. The average field capacity and field efficiency of paddy stripper harvester machine was found 0.14 ha/h and 69.38 per cent respectively.
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Alqodri, Fathir, Ruzita Sumiati, Rakiman Rakiman, Yuli Yetri, and Desmarita Leni. "Modifikasi Mesin Pengupas Kulit Pinang Kering." Jurnal Teknik Mesin 14, no. 2 (December 24, 2021): 59–63. http://dx.doi.org/10.30630/jtm.14.2.559.
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Due to the weaknesses of some existing areca peelers, some modifications were made. Modifications were made to the gear stripper, the addition of the inlet funnel, the gear stripper cover, and the exit funnel. The purpose of this modification of the design of the areca nut peeling machine is to make it easier for areca-producing farmers to peel their skin. Engine design specifications, using a 1/2 HP motor with a speed of 1500 rpm, 2-inch, and 10-inch pulleys, and a capacity of 5.16 kg/hour. The result of this modification is stated to be able to perform stripping with a large capacity. This machine is expected to be able to meet the needs of manual areca nut peelers to increase productivity.
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Herman, J., M. Lovecek, M. Duda, and I. Svach. "A Rare Complication of Varicose Vein Surgery." Phlebology: The Journal of Venous Disease 15, no. 1 (March 2000): 43–45. http://dx.doi.org/10.1177/026835550001500108.
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Design: Case report. Setting: University Hospital in the Czech Republic. Patients: Patient undergoing surgery for primary varicose veins. Interventions: The patient underwent attempted long saphenous vein stripping by passing a flexible stripper from ankle to groin. The stripper fractured at its upper end and a fragment of stripper became lodged in the internal iliac vein in the pelvis. This was removed at laparotomy. The patient made an uncomplicated recovery. Conclusion: Major complications of varicose vein surgery are rare. This unusual problem was probably caused by material fatigue in the stripper, leading to fracture near the upper end of the stripper.
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Lee, Sang Hoon. "Fatigue Analysis of Stripper Bolt Under Combined Loading for Improvement of Stamping Die Design." Journal of Vibration and Acoustics 108, no. 2 (April 1, 1986): 222–29. http://dx.doi.org/10.1115/1.3269328.
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A common problem of fatigue failure of stamping dies was experienced during the stamping operation with socket-head screws. In order to establish a design standard for the stripper bolt, a methodology for determination of the loads and the fatigue strength of the stripper bolt was developed. Stresses due to an impulsive load and a rectangular pulse were calculated based on a simplified spring mass system and the appropriate corrections were made to elaborate the solution. This approximate solution was validated by a finite element analysis. The stripper bolt should have an infinite fatigue life to survive a half million stamping operations. The fatigue problem involves a stress concentration with combined mean and alternating stresses. The Gerber parabola and the residual stress method were employed to treat the combined loading and the stress concentration. In order to enhance the fatigue life of the stripper bolt, a cushion is introduced at the surface where an impact load is applied. The cushion is found very effective in improving the fatigue life of the stripper bolt. An interactive computer program was developed as a tool for designing stamping dies.
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He, Ming, Yijun Pang, Yiwen Bao, Kangning Li, Shan Jiang, Qubo You, Shengyong Su, Yueming Hu, Qingzhang Zhao, and Xiaoming Wang. "Performance of Home-Made Single-Stage 14C AMS System at CIAE." Radiocarbon 61, no. 5 (April 12, 2019): 1511–16. http://dx.doi.org/10.1017/rdc.2019.17.
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ABSTRACTThe second home-made single stage accelerator mass spectrometer (SSAMS) system dedicated to radiocarbon (14C) measurements was built after the first SSAMS system was moved to Guangxi Normal University. With some improvements to the second SSAMS system, the performance has been improved. With the conditions of total ion energy of 200KeV, ions charge states of 1+ and helium as stripper gas, 14C measurements with precision of 0.5% and a background level of 0.5 pMC were achieved. Details of the system and the experimental performance are given here.
Dissertations / Theses on the topic "Male strippers"
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Rioux, Désiré. "Health and Safety Assemblages in the Male Strip Club: An Ethnographic Study of Male Strippers' Sexual Service Negotiation Practices." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/41969.
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Background. Despite the prevalence of sex work and strip clubs across Canadian urban geographies, few studies explore the occupational health and safety outcomes related to indoor male sex work, let alone male stripping whereby men dance for men. Moreover, the sexual service negotiation process in the sex work industry remains to be explored. In knowing that sexual practices with high HIV/STI rates occur in strip clubs (e.g., condomless oral, vaginal, and anal sex), as well as widespread psychoactive substance use among strippers, the purpose of this study was to explore the cultural features of male strippers’ work that impact their health and safety outcomes. Methodology. For this study, we recruited 14 male strippers working with male clients in a Canadian city. Critical ethnography was our espoused methodology. Through field observations, informal conversations, questionnaires, and semi-structured qualitative interviews, we explored the process of sexual transactions between strippers and clients. We used a postmodern angle to interpret our findings through the works of Deleuze, Guattari, and Foucault. Findings. The male strip club is a social matrix produced by the intersection of motivational forces: the motivation to gain money, pleasure, or intimacy, and the motivation to abide by socio-cultural and legal norms. It is upon a matrix of financial necessity and socio-cultural and legal constraints that sex work transactions unfold in the club. Moreover, the club’s health and safety conditions and strippers’ transaction outcomes result from intersecting motivations. Finally, sexual service negotiation is a process of configuring motivational forces between social agents. The motivation for financial gain revealed itself to be the strongest and most consistent force; the focus on capital gain generated asymmetrical connections between strippers, clients, and business entrepreneurs, resulting in specific health and safety outcomes. Conclusion. The Canadian legal and political context surrounding male sex work negatively impacts male strippers’ occupational health and safety conditions by disabling safe connections with clients. Further, the emphasis on money-making activities encourages strippers to value financial gain over their physical and mental integrity. In short, the male strip club work environment is configured in a manner whereby capital gain is prioritized and strippers’ health and safety is undermined.
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Kerley, Eric Scott. "All stripped down : Iconography in the American Mini-Mall." Thesis, Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/22722.
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Robillard, Julie. "Genre et pouvoir : relation entre danseurs nus et clientèle féminine et masculine." Thèse, 2011. http://hdl.handle.net/1866/7096.
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L’objectif de ce mémoire est de comprendre l’influence du genre sur le rapport de force entre les danseurs nus et leur clientèle féminine et masculine. Depuis les années 1960, les bars de danseuses nues abondent à Montréal. De nombreuses recherches ont été menées à ce sujet, mais très peu concernent directement leurs homologues masculins, les bars de danseurs nus pour hommes et pour femmes. Notre mémoire analyse la relation de pouvoir entre les danseurs nus et leur clientèle féminine et masculine au 281 et au Stock bar. S’appuyant sur la littérature des bars de danseuSEs nuEs, nous étudions les quatre dimensions de la relation de pouvoir : l’influence des lieux sur les interactions, la liaison physique et sexuelle, l’échange marchand ainsi que le lien émotif.
Pour répondre à notre question de recherche, nous avons effectué plusieurs séances d’observation non-dévoilée au 281 et au Stock bar. Afin d’analyser les données que nous avons recueillies, nous utilisons les théories de Judith Butler et la sociologie goffmanienne. Le concept de phallus de Butler nous permet de repérer qui domine en « ayant » le phallus et qui est dominé en « étant » le phallus. Nous concluons que les femmes sont, à quelques exceptions près, toujours celles qui « sont » le phallus pour les hommes danseurs et animateurs qui le « possèdent ». La structuration des soirées, établie selon le modèle hétérosexuel binaire prépondérant, rend très difficile pour elles de s’en emparer. En ce qui concerne le rapport entre les hommes danseurs et clients dans un contexte homosexuel, ce sont les danseurs qui « sont » le phallus pour les hommes clients qui l’« ont ». Leur relation est très similaire à celle que nous pouvons observer dans les bars de danseuses nues entre ces dernières et leur clientèle masculine. « Être » le phallus signifie que les danseuSEs nuEs ont le pouvoir de reconnaître ou non le phallus à l’homme client afin qu’il puisse (ou non) matérialiser son pouvoir masculin en subvenant à leurs besoins et en étant désirable à leurs yeux. Dans tous les cas, les danseurs nus font un travail émotionnel différent selon le genre des clientEs, rehaussant le statut social des hommes et diminuant celui des femmes.Since the 1960s, there has been a glut of female strippers’ clubs in Montreal. Numerous researches have been written on the subject, but only few of them are about their masculine counterparts, male strippers’ clubs for men and women. Our thesis questions the power relation between male nude dancers and their female and male patrons at 281 and Stock bar. Using male and female strippers’ clubs literature, we study the four dimensions of their power relation: the physical and organizational space’s influence, the physical and sexual connection, the monetary exchange and the emotional link. Our objective is to understand the gender influence on this power relation between male strippers and their female and male patrons. To answer our research question, we have made several under cover observation sessions at 281 and Stock bar. In order to analyse our data, we use Judith Butler’s theories and goffmanian sociology. Butler’s phallus concept enables us to see who is dominating by “having” the phallus and who is dominated by “being” the phallus. We conclude that women are always, with a few exceptions, the ones “being” the phallus for the male strippers and masters of ceremony who “have” it. The Ladies’ night’s structure, set according to the predominant heterosexual binary model, makes it very difficult for them to seize it. As regards of male strippers’ and patrons’ connection in a homosexual context, strippers “are” the phallus for the patrons that “have” it. Their relationship is very similar to the one observed in female strippers’ clubs. “Being” the phallus means that female and male dancers have the power to acknowledge or ignore the male patron’s phallus possession, which will enable or undermine his masculine power to provide economically for their material needs and to be desirable in their eyes. In all cases, male strippers enact a different emotional labor according to patrons’ gender, by enhancing men’s social status and decreasing women’s.
Books on the topic "Male strippers"
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Kesheha-delet nisgeret ṿeha-musiḳah matḥilah: Ṿiduyo shel ḥaśfan. [Tel Aviv?]: Ṭal, 2007.
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All I could bare: My life in the strip clubs of gay Washington, D.C. New York: Atria Books, 2008.
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Hann, Sheryl. For her eyes only: Male strippers, women's pleasures and feminist politics. Palmerston North [N.Z.]: School of Sociology and Women's Studies, Massey University, 1999.
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All I could bare: My life in the strip clubs of gay Washington D.C. New York: Atria Paperback, 2009.
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Stripples strikes again!: More quilts to make with the bias stripper ruler. Bothell, WA, USA: That Patchwork Place, 1997.
Find full textBook chapters on the topic "Male strippers"
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Waling, Andrea. "Male strippers in popular film." In The Routledge Handbook of Male Sex Work, Culture, and Society, 83–100. Routledge, 2021. http://dx.doi.org/10.4324/9781003152835-6.
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Krueger, Julie Christine. "Meeting His Needs." In The Reproduction and Maintenance of Inequalities in Interpersonal Relationships, 230–54. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-6684-4128-2.ch013.
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Based on 13 months of ethnographic field work, this research interrogates male customers' motivations for patronizing strip clubs as well as gendered functions of strippers' labor outside of sexual arousal. More broadly, this research examines the relationship between male customers, masculinity, and female strippers' labor. The author makes the argument that strip clubs provide a “safe space” for male customers to experience emotional intimacy and receive “stripper therapy.” Through their labor, strippers fulfill the emotional needs of male patrons and enable them to express their emotions, often concerning that which compromises their masculinity. The hypersexualized, masculinized environment of the strip club, however, shields customers from the fear of being “insufficiently” masculine or failing to adhere to masculine ideals of stoicism and self-control. Thus, this research highlights the extent to which men rely on strippers' labor to meet the demands of masculinity and cope with the pressure it exerts.
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Bakhsh, Jordan T., and Corey W. Johnson. "Some memoirs of a male stripper 1." In Sex and Leisure, 55–72. Routledge, 2020. http://dx.doi.org/10.4324/9781003003427-4.
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Escoffier, Jeffrey. "Porn Star/Stripper/Escort: Economic and Sexual Dynamics in a Sex Work Career." In Male Sex Work: A Business Doing Pleasure, 174–200. Routledge, 2018. http://dx.doi.org/10.4324/9781315876955-8.
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Twain, Mark. "Chapter III Knights of the Table Round." In A Connecticut Yankee in King Arthur's Court. Oxford University Press, 2008. http://dx.doi.org/10.1093/owc/9780199540587.003.0004.
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Mainly the Round Table talk was monologues—narrative accounts of the adventures in which these prisoners were captured and their friends and backers killed and stripped of their steeds and armor. As a general thing—as far as I could make out—these murderous adventures were not...
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Moore, Louis. "Following the Color Line." In I Fight for a Living. University of Illinois Press, 2017. http://dx.doi.org/10.5622/illinois/9780252041341.003.0007.
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During the Progressive Era, a number of cities and states outside the Deep South eventually barred mixed bouts. To be sure, white lawmakers wanted to protect white superiority. Each black victory in the ring against white opponents--and there were plenty by black men--stripped away at the notion of white male social and political authority, a confidence that partly hinged on whites’ racial belief in physical superiority. Whiteness had no value if it could not be proven.
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Ritterhouse, Jennifer. "Naked and Hot as If She Were Stripped in the Sun." In Discovering the South. University of North Carolina Press, 2017. http://dx.doi.org/10.5149/northcarolina/9781469630946.003.0007.
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This chapter tells the story of the 1936 flogging of Willie Sue Blagden, a white, middle-class supporter of the Southern Tenant Farmers Union (STFU) who became a target of antiunion violence when she and white clergyman Claude Williams went to Earle, Arkansas, to investigate the disappearance of black union member Frank Weems. This highly publicized attack on a white woman was seen as a violation of southern "chivalry" and contributed to both media sympathy and federal government support for the plight of sharecroppers and tenant farmers during the Great Depression. Unfortunately, historical scholarship about the flogging has reflected a rather sexist disdain for Blagden, who went on to join the Communist Party, among the STFU's predominately white, male, Socialist leadership. Other victims of antiunion violence including Jim Reese and Eliza Nolden deserve to be remembered as well. The chapter concludes with Jonathan Daniels's conversation with STFU attorney C. T. Carpenter, whom he admired as a patrician who fought for social justice.
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Ojo, Olugbenga David. "Faceless Counselling." In Online Guidance and Counseling, 14–23. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-61350-204-4.ch002.
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This chapter advances what can be done by therapists in the absence of opportunity to observe the verbal and non-verbal cues of the clients during online counselling sessions without undermining the capability and workability of the online counselling mode as a creative and innovative therapeutic medium. This is an attempt to make sure that counsellors/therapists are still able to perform creditably and help alleviate the problems of their clients, without being stripped of their skills due to introduction of technology into the art of counselling.
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Pycroft, Aaron, and Clemens Bartollas. "Conclusion." In Redemptive Criminology, 114–19. Policy Press, 2022. http://dx.doi.org/10.1332/policypress/9781529203530.003.0007.
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You know how it is. You go to write something, a letter, an essay, an article, a book, or you start working with a new and challenging service user. In your mind, you are clear what you are doing, you are excited having glimpsed the possibilities to do good work. Waking up of a morning your crepuscular semi-conscious state has made wonderful connections, you glimpse ‘the thing in itself’ its haecceity, you are up for the challenge. You go to work, make that cup of coffee, sit down with a blank piece of paper or computer screen, talk to colleagues, meet the service users, but then it’s gone! You seem to be dragged in by the complexity of the challenges, with the connections not quite so vivid or obvious – the enargeia is dissipated. Why is this? In part because the reductionist and calculating mind, in needing to try to make sense of the intuition, its content, presentation and acceptability to others, loses the whole picture. This is not helped by working in bureaucratized neoliberal institutions (including universities), where your work is shaped and performance managed, subjected to endless reviews, the demands of file keeping, and supervision. The risk is that despite the importance of the work and our own motivation, as with Brideshead Revisited and Charles Ryder’s sojourn with the army, we are stripped of all enchantment (Waugh, 1964).
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Foley, Richard. "Knowledge Stories." In When Is True Belief Knowledge? Princeton University Press, 2012. http://dx.doi.org/10.23943/princeton/9780691154725.003.0003.
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This chapter talks about how stories drive the contemporary theory of knowledge. The practice is to tell a tiny story, use it to elicit an intuition about whether the subject has or lacks knowledge, and then draw a moral for the theory of knowledge. Some of the stories are stripped-down versions of familiar situations. Others depict unusual circumstances, and still others are beyond unusual. These stories, such as the ones so far related in this volume, make use of the common literary device of providing the audience with information that the subjects of the stories lack. Moreover, the stories are told in a way to suggest that the missing information is important.
Conference papers on the topic "Male strippers"
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Kuriger, Rex J., M. Khairul Alam, and David P. Anderson. "Improved Thermoplastic Composite by Alignment of Vapor Grown Carbon Fiber." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1493.
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Abstract This paper discusses the properties of an improved thermoplastic composite by alignment of vapor grown carbon fiber (VGCF) suspended in a polypropylene matrix. VGCF provides improved mechanical and electrical properties in composites. In this study an extruder was used to shear mix and extrude VGCF/polypropylene mixtures containing fiber volume fractions of 2.5%, 7% and 11% through a converging-annular die which produces a high degree of fiber alignment along the flow direction. X-ray diffraction analysis performed on the extruded composite strands showed that the fibers were oriented approximately ± 23.7, ± 28.15 and ± 30.0 degrees along the preferred direction for the 2.5%, 7% and 11% specimens, respectively. Tensile tests were done in both the preferred and transverse directions of samples reinforced with pyrolytically stripped VGCF. When compared to polypropylene, there was a 36.5%, 69.4% and 82.0% increase in tensile strength, and a 94.9%, 173.7% and 218.2% increase in modulus for the 2.5%, 7% and 11% VGCF mixtures along the preferred direction, respectively. The tensile strength and modulus in the transverse direction increased as the fiber volume content increased, however, all values were well below that of polypropylene. This behavior could be attributed to stress concentrations in the composite material. Electrical resistivity measurements were made on samples reinforced with two types of VGCF. The results concluded that the electrical conductance of the polymer strands reinforced with a heat-treated VGCF was far superior to those reinforced with a pyrolytically stripped VGCF.
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Bach, Fr W., P. Brüggemann, H. Louis, A. Schenk, and R. Versemann. "Dry Ice Blasting and Water Jet Processes for the Removal of Thermal Sprayed Coatings." In ITSC2005, edited by E. Lugscheider. Verlag für Schweißen und verwandte Verfahren DVS-Verlag GmbH, 2005. http://dx.doi.org/10.31399/asm.cp.itsc2005p1542.
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Abstract Thermal sprayed coatings often need to be removed for maintenance, repair or recycling and are accomplished by various conventional methods such as grinding, abrasive blasting and chemical removal processes. The coating removal for repair is typically done for expensive and/or very complex parts. Parts of turbines, equipped with functional coatings, are stripped for inspection and repair as well as old coatings are renewed. When removing a thermal sprayed coating, damage to the part or ablation of the substrate must be avoided. A new process of dry ice blasting alone as well as in combination with a laser beam in a hybrid process has been approved for the removal of thermal sprayed coatings in a project aided by the Federal Ministry of Economic Affairs and Employment via the Federation of Industrial Research Associations (AIF). The aim of the project is to obtain the properties for the comparison and benchmarking of coating removal processes. Comparative studies have been made with the water jet and the abrasive water jet process at the Institute of Materials Science of the University of Hanover.
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Dong, Liang, Laurence Reekie, and Jose L. Cruz. "Long Period Gratings Formed in Depressed Cladding Fibres." In Bragg Gratings, Photosensitivity, and Poling in Glass Fibers and Waveguides. Washington, D.C.: Optica Publishing Group, 1997. http://dx.doi.org/10.1364/bgppf.1997.bmg.17.
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There has been a significant interest in long period gratings, primarily due to their applications in gain-flattened erbium doped fibre amplifiers [1]. Up till now, cladding modes supported by the glass-air interface of an optical fibre have been used in a forward mode coupling scheme involving also the guided fundamental mode of the optical fibre. Here we propose an alternative technique. In a single mode depressed cladding fibre of an appropriate design (an example is given in fig. 1), the higher order LP11 mode can be made to be a leaky mode in such a structure, i.e. it can propagate for a short length before being stripped off the high index region beyond the depressed cladding. This enables coupling between the guided fundamental LP01 and leaky LP11 modes, despite the fact that the optical fibre is single-moded. This coupling was first observed in [2], where a Bragg grating caused strong coupling into the backward-propagating leaky LP11 mode and much weaker coupling into a series of cladding modes. In a forward coupling scheme with a long period gratings (several hundred micrometres pitch), the LP01 mode can be coupled into the forward propagating leaky LP11 mode, therefore creating a loss peak in the transmission in the same way as when the LP01 mode is coupled into a cladding mode supported by the glass-air interface of the optical fibre which is subsequently stripped off over the coated section of the optical fibre. Two advantages are anticipated, I) potentially much stronger coupling due to the much large modal overlap possible and II), insensitivity to the glass-air interface as the LP11 mode is supported mainly by the core. It must be stressed that as the LP11 mode is an asymmetrical mode, the coupling from LP01 to LP11 will not occur if a circularly symmetrical grating is written over the core of the fibre, but this is not usually a problem when H2 or D2 loading is used, because of the asymmetry of the index change in such gratings due to strong absorption induced at the writing wavelength.
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Muldoon, Frank, and Sumanta Acharya. "Dynamics of Large-Scale Structures for Jets in a Crossflow." In ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/98-gt-019.
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Results of a three dimensional unsteady computational study of a row of jets injected normal to a cross-flow are presented with the aim of understanding the dynamics of the large scale structures in the region near the jet. The jet to cross-flow velocity ratio is .5. A modified version of the computer program (INS3D) which utilizes the method of artificial compressibility is used for the computations. Results obtained clearly indicate that the near field large scale structures are extremely dynamical in nature, and undergo breakup and reconnection processes. The dynamical near field structures identified include the counter rotating vortex pair (CVP), the horseshoe vortex, wake vortex, wall vortex and the shear layer vortex. The dynamical features of these vortices are presented in this paper. The CVP is observed to be a convoluted structure interacting with the wall and horseshoe vortices. The shear layer vortices are stripped by the crossflow, and undergo pairing and stretching events in the leeward side of the jet. The wall vortex is reoriented into the upright wake system. Comparison of the predictions with mean velocity measurements is made. Reasonable agreement is observed.
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Haslum, Herbjørn, Mathias Marley, Bjørn Skaare, and Håkon Andersen. "Aerodynamic Roll-Yaw Instabilities of Floating Offshore Wind Turbines." In ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-18273.
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Abstract This paper presents an investigation of a newly discovered motion instability phenomenon for floating wind turbines. The instability is due to anti-symmetric coupling terms in roll and yaw caused by the turbine thrust force. For floaters with small separation between the uncoupled roll and yaw natural periods these coupling forces may result in rigid body roll and yaw oscillations. The paper explains the theory and the physics of the instability phenomenon, and analytical expressions for these stiffness coupling terms (K46 and K64) are derived. The instability phenomenon is demonstrated using several points of attack, by using time domain simulations, conservation of energy flow and eigenvalue stability analysis. The problem is stripped down to a simplified two degree of freedom roll-yaw model where analytical stability criteria are developed. The instability is also demonstrated in tailor made six degree of freedom time domain simulations, and in simulations using a fully coupled aero-hydro-servo elastic simulation tool including a BEM model. An important finding is that damping forces are needed to fully understand the observed instability. It is demonstrated, quite counter-intuitively, that damping reduces the stability margin. This is explained by considering the effect damping forces has on roll-yaw phasing, for the typical damping values relevant for a floating offshore wind turbine.
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Church, D. A., and S. D. Kravis. "Highly-Charged Ion Precision Spectroscopy Using Free Electron Laser Radiation." In Free-Electron Laser Applications in the Ultraviolet. Washington, D.C.: Optica Publishing Group, 1988. http://dx.doi.org/10.1364/fel.1988.sa4.
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The characteristics of radiation potentially available from proposed rf-linac free electron lasers1 are considered here for precision spectroscopy of highly-charged ions. Such ions are usually produced in environments not conducive to precision measurements, such as high temperature plasmas or fast ion beams. However, highly-charged recoil ions with eV energies have been produced by impact of fast, stripped ions on atomic targets2, and, using synchrotron radiation, multi-charged ions have been formed at thermal energies by K-shell photoionization followed by Auger emission and electron shake-off3. Using each of these cold ion sources, multi-charged ions have been stored under ultra-high vacuum conditions in Penning4,5 or radio-frequency6 ion traps, while maintaining the low energies at which the ions were generated. Long term storage at low energy in a near perturbation-free environment is consequently a reality for multi-charged ions, and experiments can be designed to exploit these properties for both spectroscopic7 and collision8 measurements. In particular, we discuss precision measurements on hydrogen-like multi-charged ions analagous to measurements on singly-charged alkalai-like ion hyperfine structures made using conventional pulsed laser techniques.9 Precision measurements of interest include, for example, studies of the Z-dependence of the Lamb shift in hydrogen-like and helium-like ions, and studies of the fine structure of helium-like ion n=2 states.
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Welker, Thomas F. "Gas Quality Can Only Be Determined by a Representative Sample." In 1996 1st International Pipeline Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/ipc1996-1918.
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The Natural Gas Industry is changing rapidly. Yesterday, the producer sold to the gathering company, the gathering company sold to the pipeline company, the pipeline company sold, processed, stored, and moved the gas to the end user. Today, the end user buys from the producer, the gatherer, pipeliner, processor, storer. All handle someone else’s gas. There is only one way to know the quality of your product. Take a representative sample. Since everything that is done to gas changes it, you must know its’ quality as it is produced, compressed, processed, stripped, stored, and sold. This takes an analysis of that collected representative sample. Your company’s sampling techniques determine that gas quality. The people involved and the equipment used to collect the sample, store, transport, condition, and analyze that sample all make a profound difference. This paper will cover all of the aspects of gas quality determination and the business impacts of sampling accuracy. The issues discussed include: where on the line should the sample be taken, how should it be taken to protect its’ quality, what about transportation, D.O.T., cylinders, what happens to the gas in that cylinder, conditioning in the lab, heating, cooling, manifolds, and analyzers. Each step in the sampling operation will be discussed, as well as the ramifications of errors involved. This paper will also cover recent tests involving spot sampling test to maintain phase control and data from continuing test of composite samplers.
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Nandi, Bashistha, Fatima Mohamed Al Qaydi, Dana Hashem Al Damasi, and Ruwayya Salem Ali Almazrooei. "Gold Standard in House Engineering Design Through Efficient Process Optimization to achieve Excellence in Opex Saving and 40% Reduction in Capex." In ADIPEC. SPE, 2022. http://dx.doi.org/10.2118/211239-ms.
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Abstract This paper will showcase efforts of a Gold standard engineering team, through multiple fit for purpose and innovative solutions which were adapted as part of process optimization during RE-FEED in order to achieve excellence in capex saving in a mega project of ADNOC onshore. The efficient and best in class engineering design led to permanent solution for problems in a vast field which is profoundly challenged for handling oil, gas and water. Lesson learnt from this project has become eye opener and became benchmark. Another success story was made through this project. This mega project for production sustainability was challenged due to significant CAPEX requirement. Comprehensive cost optimization was sought by management. As reciprocation, In house process engineering team undertook a daunting task to modify/optimize scheme of unit processes of the project through simulations, detailed analysis of profile, calculations and process optimizations. Following methods were applied to achieve the success. Process optimizations at core – "one solution for addressing multiple problems" Simplifying the surface facility process scheme Alternative method of design and out of box ideas which resulted in impactful cost optimization Plateau Oil production of this onshore field was hindered by field and CDS congestion, high water cut, limitations in Oil and produced water handling capacity in CDS. After implementation of process optimizations and innovative solutions, following observations and conclusions were made and included in FEED design. Dewatering station at upstream : This was recognized as one point solution for multiple problems. Removal of water at upstream reduced back pressure in existing transfer lines drastically and led to non-requirement of new transfer lines hence decongestion and allowed oil-water separation requirement within limits of existing facilities’ capacity. Deletions of a new CDS with two oil trains complete with all utility and flare facilities and transferring facilities for oil, associated gas, produced water, gas injection leads to a significant OPEX and CAPEX saving. Innovative solutions such as placing HP and LLP flare at the same structure to reduce footprint, combining water separation tank and disposal tank, deletion of produced water degasser with the help of HIPPS, transferring high H2S off gases from water separation tanks of RDSs to CDS stripper overhead were a few to be named. Optimized design such as usage of rationalized MOC, deleting flare packages in remote 15 PADs / Minipads, optimized footprints resulted in CAPEX saving. Thus, the multibillion project CAPEX was almost reduced to 60% by teamwork of a young process engineering team. Through a tremendous efforts in REFEED stage. This paper will reflect how ideation will pave the way for achieving great success. A relentless process optimization approach to continuously challenge the design while focusing on achieving design functions resulted into great saving for company. How a simple idea of Dewatering at upstream solved multiple problems in a field, how the success of one idea gives birth to many more and how a comparatively young engineering team was engaged with utmost sincerity in quest of solutions….answer of all these questions definitely lead to Novel category as team acted differently and earned COMPANY's trust to award for EPC.
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Musolino, Stephen V., Steven F. Kane, and Joseph W. Levesque. "Safety Engineering for the Relativistic Heavy Ion Collider at the Brookhaven National Laboratory." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-1149.
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Abstract The Relativistic Heavy Ion Collider (RHIC) is a high energy particle accelerator built to study basic nuclear physics. It consists of two counter-rotating beams of fully stripped gold ions that are accelerated in two rings to an energy of 100 GeV/nucleon. The rings consist of a circular lattice of superconducting magnets, 3.8 km in circumference. The beams can be stored for a period of five to ten hours and brought into collision for experiments during that time. The first major physics objective when the facility goes into operation is to recreate a state of matter, the quark-gluon plasma, that has been predicted to have existed at a short time after the creation of the universe. There are only a few other high energy particle accelerators like RHIC in the world. Each one is unique in design and contains systems and hazards that are not commonly found in general industry. Therefore, the designers of the machine do not always have consensus design standards and regulatory guidance available to establish the engineering parameters for safety. Some of the areas where standards are not available relate to the cryogenic system, containment of large volumes of flammable gas in fragile vessels in the experimental apparatus and mitigation of a Design Basis Accident with a stored particle beam. The ASME Code requires Charpy testing of welds at cryogenic temperature, but testing at 4 K is nearly impossible to conduct. Engineered welds were used to provide an equivalent level of safety. A cryogenic system is a process system. The RHIC system was designed first by selecting a safe operating mode, then analyzing to ensure this mode was preserved. Cryogenic systems have unique processes, and the safe mode will surprise most process engineers. The experimentalists require detectors to be designed to meet the need of the physics objectives, but the application of standard construction techniques would make research mission impossible. Unique but equivalent safety engineering must be determined. The rules promulgated in the Code of Federal Regulations under the Atomic Energy Act do not cover prompt radiation from accelerators, nor are there any State regulations that govern the design and operation of a large superconducting collider. Special design criteria for prompt radiation were developed to provide guidance for the design of radiation shielding.
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Khalid, Ali, Qasim Ashraf, Khurram Luqman, Ayoub Hadj-Moussa, and Nasir Hamim. "A Novel Approach for Underbalanced Well Completions in Depleted and Highly Fractured Carbonate Reservoirs." In International Petroleum Technology Conference. IPTC, 2021. http://dx.doi.org/10.2523/iptc-21178-ms.
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Abstract A prime objective of oil and gas operators is to maximize reservoir productivity and increase the ultimate recovery from all depleting fields. Underbalanced drilling is one such enabling technology that has been adopted world wide to achieve a number of objectives in maximizing the reservoir potential. Chief among these objectives are to reduce formation invasion damage, identify sweet spots in the reservoir, and reduce well costs. Underblanaced operations however introduces more complexity into the successful drilling and completion of a candidate well. An improperly executed underbalanced operation can result in having less productivity in contrast to a conventionally drilled and completed well. Pakistan a country currently highly dependent on foreign hydrocarbon fuels, once had total independence in at least natural gas. The southern part of Pakistan is known for its rich hydrocarbon potential, but most fields were discovered decades ago and have depleted at a rapid pace. Numerous fields in the vicinity have depleted to an extent that the reservoir pressure has reduced to a mere 3.9 PPG in EMW. In the most recently drilled well the pressure depletion caused massive circulation losses while drilling the reservoir formation and the operator had resorted to pumping of heavy LCM pills and blind drilling to complete the section. After completing the well conventionally the operator made multiple attempts to kick off the well but observed no production. Subsequently multiple acid stimulation jobs were performed to reduce the formation damage, but all efforts were in vain. It was evaluated that the heavy LCM and drilled cuttings had bridged off and choked the reservoir skin completely from which there was no return. Ultimately the well had to be plugged and abandoned. In relatively higher pressured and non-fractured formations the option exists to drill a well in underbalanced mode and trip the running string by balancing the well with a light weight fluid. For the subject case however, this option was impossible due to the highly fractured nature of the formation. A plan was devised to include a downhole casing isolation valve in the last casing string and drill the well with an extremely light weight multiphase fluid. A rotating control device would be used to strip the running string in and out of the well. The completion packer was also to be stripped into a live well and set in place without the need of ever killing or balancing the well. By executing the mentioned methodology, the operator was able to drill and complete a well all the while keeping the reservoir formation in a virgin state. The paper discusses the planning, design, execution, and lessons learnt in underbalanced drilling and completion operations in the subject field.