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Relevant bibliographies by topics / Stop-out

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Academic literature on the topic 'Stop-out'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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Journal articles on the topic "Stop-out"

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&NA;. "Stop stressing out." Nursing Management (Springhouse) 31, no. 10 (October 2000): 17. http://dx.doi.org/10.1097/00006247-200010000-00009.

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Parkinson, Stuart, and Chris Langley. "Stop the sell-out!" New Scientist 204, no. 2733 (November 2009): 32–33. http://dx.doi.org/10.1016/s0262-4079(09)62929-8.

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Bendix, Tom, Per Kjaer, and Lars Korsholm. "Burned-Out Discs Stop Hurting." Spine 33, no. 25 (December 2008): E962—E967. http://dx.doi.org/10.1097/brs.0b013e31818804b3.

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The Lancet. "STOP TB—moving out and moving on." Lancet 384, no. 9940 (July 2014): 282. http://dx.doi.org/10.1016/s0140-6736(14)61244-7.

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CRAWFORD, M. H. "How to Stop Tearing Your Hair Out." Science 245, no. 4921 (September 1, 1989): 934. http://dx.doi.org/10.1126/science.245.4921.934-a.

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Lindsey, Douglas. "It's time to stop washing out ears!" American Journal of Emergency Medicine 9, no. 3 (May 1991): 297. http://dx.doi.org/10.1016/0735-6757(91)90101-o.

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McClatchey, Andrea I., and Katia Georgopoulos. "Actin’ Up to Stop SNFin Out TEAD." Developmental Cell 47, no. 6 (December 2018): 693–95. http://dx.doi.org/10.1016/j.devcel.2018.11.037.

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HARRISON, CHRISTOPHER J. "To Stop Infant Pertussis, Reach Out to Adults." Family Practice News 40, no. 16 (October 2010): 16. http://dx.doi.org/10.1016/s0300-7073(10)70992-0.

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Hatfield, Charlotte. "Starting out - Lack of seniority should not stop me from speaking out." Nursing Standard 25, no. 18 (January 5, 2011): 29. http://dx.doi.org/10.7748/ns.25.18.29.s35.

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Woosley, Sherry. "Stop-Out or Drop-Out? An Examination of College Withdrawals and Re-Enrollments." Journal of College Student Retention: Research, Theory & Practice 5, no. 3 (November 2003): 293–303. http://dx.doi.org/10.2190/6nw2-fuj4-4atu-ekhc.

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Dissertations / Theses on the topic "Stop-out"

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Bartoszuk, Karin, and James E. Deal. "Predictors of College Students’ Drop Out/Stop Out." Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etsu-works/3210.

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Jacobsen, Christopher David. "College Stop-Out Among Rural Undergraduates: A Phenomenology." Thesis, Boston College, 2021. http://hdl.handle.net/2345/bc-ir:109075.

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Thesis advisor: Heather T. Rowan-Kenyon
Rural undergraduates lag behind urban and suburban undergraduates across many measures of college success, even though they graduate from high school at a higher rate. While a small but growing body of research literature addresses the challenges and barriers rural students face during the college process, few, if any, studies have focused specifically on the experience of rural undergraduates who withdraw from college before completing a degree.This qualitative phenomenological study examines the experiences of rural, low-income, first-in-family undergraduates who stop out of college. Study participants (n=13) attended high school in different rural communities and geographic regions across the United States. After participating in an Upward Bound program during high school, they each enrolled in a two- or four-year, undergraduate degree program at an accredited, non-profit college or university and then withdrew prior to completing a degree. Following in the tradition of Edmund Husserl (1859-1938) and using the framework provided by Clark Moustakas (1994), I engaged study participants in open ended, semi-structured interviews. After those conversations, participants submitted independently recorded voice memos about their experience stopping out of college. The rural backgrounds of study participants manifested in many aspects of how and what they experienced when they withdrew from college. The phenomenon was described as an intense and devastating period of time, characterized by feelings of failure, shame, confusion, and disappointment. The distinct influence of rural families, communities, and schools shaped participants’ decisions before, during, and after their time at college. While the reasons students withdrew varied widely and may be similar to those of non-rural students, all participants perceived their rural background as deeply implicated in the stop-out experience. This study offers a new orientation on the topic of college stop-out among rural undergraduates and presents a working persistence model for this underserved student group. The three theoretical perspectives presented in this study – transcendental phenomenology, ecological systems theory, and community cultural wealth – expose broader meaning about both the objective and subjective qualities of the stop-out experience, adding a depth to findings that has broad implications for scholars and practitioners. This study concludes with practical insights for educators, policymakers, and institutions that serve rural undergraduates
Thesis (PhD) — Boston College, 2021
Submitted to: Boston College. Lynch School of Education
Discipline: Educational Leadership and Higher Education

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Asay, Toni. "The Ties that Bind: Identifying Connections that Facilitate Students’ Successful Re-Entry to Higher Education." DigitalCommons@USU, 2019. https://digitalcommons.usu.edu/etd/7481.

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The ubiquitous roadblocks to university graduation have been investigated, identified, and interrogated for 7 decades, yet the mystery of retaining students to graduation continues to elude even the most prestigious universities. This researcher’s approach to increasing graduation began with the concession that increasingly, students may leave school at some point due to one or more of the retention issues that we recognize all too well—finances, illness, family problems, pregnancies, and other educational obstacles. However, leaving school does not mean that there is no going back. Student’s dropout status changes when they re-enroll in school; they take on new identities as stop-out students who forge their own nontraditional path to graduation. This work explored the lived experiences of this often-overlooked subset of university students—students who begin courses in higher education but then forgo their studies for a time before returning. These students are known in the literature as stop-out students, a cohort seldom acknowledged, studied, or desegregated from dropout statistics. An online survey was used to determine the demographics of the stop-out participants, and face-to-face, semi-structured interviews were then conducted to allow students to relate their experiences, in and out of school, in their own voices. Of particular interest was the effect of students’ perceived connections to faculty, staff, and/or administration as an influence in their decisions to return to school. The study was analyzed through the lens of care theory as a way to investigate how students’ persistence was affected by feelings of connection or caring. Only one of twelve interviewees had formed a relationship with a professor before he left school, and this relationship was maintained during his absence and renewed when he returned. The other interviewees acknowledged that they felt no specific connections to any person, office, or administration when they left. The stop-out population is one that higher education needs to acknowledge and support with targeted services. In many cases, they are only a few semesters from graduation. Rather than blocking their way when they run for the hills, we should be lighting their path back to success.

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McMillan, Fay C. "A qualitative study of adult women in a northeast Tennessee community college." [Johnson City, Tenn. : East Tennessee State University], 2003. http://etd-submit.etsu.edu/etd/theses/available/etd-0528103-095951/unrestricted/McMillanF070203a.pdf.

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Thesis (Ed. D.)--East Tennessee State University, 2003.
Title from electronic submission form. ETSU ETD database URN: etd-0528103-095951. Includes bibliographical references. Also available via Internet at the UMI web site.

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Hendricks, Natalie H. "Eat Your Heart Out." Scholarship @ Claremont, 2013. http://scholarship.claremont.edu/scripps_theses/171.

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This thesis critically comments on the unapologetic consumerist society that is feeding the obesity epidemic in the United States. Utilizing the medium of animation, this work displays the paradox advertisement creates by enticing individuals into an unhealthy life style, while simultaneously shaming their excessive indulgence by exhibiting images of ideals. The appealing surface level of this piece masks the dark underlying implications, similar to the colorful boxes of food that disguise illness as nourishment.

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Leung, Chi-wah Loretta. "Privatization of public housing management in Hong Kong : go ahead or stop? /." View the Table of Contents & Abstract, 2006. http://sunzi.lib.hku.hk/hkuto/record/B38026818.

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Leung, Chi-wah Loretta, and 梁知華. "Privatization of public housing management in Hong Kong: go ahead or stop?" Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B45008954.

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Profitt, Maxine. "SLEEP REGULATION IN THE STOP-NULL MOUSE MODEL OF SCHIZOPHRENIA." 2014. http://hdl.handle.net/10222/45642.

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Sleep disturbances are common in patients with schizophrenia. Mice lacking the cytoskeletal-associated protein Stable Tubule Only Polypeptide (STOP) display cognitive, behavioural and neurobiological deficits that mimic those seen in schizophrenia, but there is little evidence of sleep changes in these mice. To investigate their sleep patterns, electroencephalogram (EEG) and electromyogram were recorded under a 12:12 light:dark cycle in adult male STOP-null (KO; n=7) and wild-type (WT; n=8) mice, during a 24 h baseline period, followed by 6 h of sleep deprivation, and a 24 h recovery period. In the baseline period, KO mice spent more time awake and less time in non-rapid eye movement (NREM) and REM sleep compared to WT mice. Particularly in the dark phase, KO mice had more wake and NREM sleep episodes, and shorter NREM and REM sleep episodes relative to WT mice. Following sleep deprivation, during the first 12 h of recovery (i.e. dark phase), both groups showed similar increases in NREM and REM sleep amounts and NREM EEG delta power relative to corresponding baseline periods. These findings indicate that the STOP-null mice sleep less and their sleep is more fragmented compared to WT mice. These features are consistent with the sleep abnormalities found in individuals with schizophrenia.

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Kelly, Erin Joy. "Marketing health issues to tweens : recommendations for reaching this demographic more effectively." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-12-4446.

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This paper explores public health campaigns as they relate to tweens and their use of technology. After considering how this demographic utilizes both traditional and new media, further examination was done on general health problems that affect this group. Three major health issues were then chosen for analysis. A relevant campaign for each issue was also evaluated, as were its overall marketing and communication efforts. The health problems and corresponding campaigns chosen include childhood obesity and the “Let’s Move” campaign, electronic aggression and the “Stop Bullying” campaign and youth suicide and the “WeCanHelpUs” campaign. From these analyses, recommendations for ways to improve each campaign were provided, as were general conclusions for reaching this demographic more efficiently and effectively.
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Books on the topic "Stop-out"

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Tom, Hazel. Eastwood, stop barking! there's nothing out there. Geneva, IL: Water Spaniel Press, 2003.

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1948-, Ginger E. M., ed. Stop stealing sheep & find out how type works. 2nd ed. Berkeley, Calif: Adobe Press, 2003.

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Spiekermann, Erik. Stop stealing sheep & find out how type works. Mountain View, Calif: Adobe Press, 1993.

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Spiekermann, Erik. Stop stealing sheep & find out how type works. 2nd ed. Berkeley, Calif: Adobe Press, 2003.

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Spiekermann, Erik. Stop stealing sheep & find out how type works. 2nd ed. Berkeley, Calif: Adobe Press, 2003.

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1948-, Ginger E. M., ed. Stop stealing sheep & find out how type works. Mountain View, Calif: Adobe Press, 1993.

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Wade, Elaine. Bridging the gap: A scheme to stop school leavers dropping out of sport. London: Sports Council, 1987.

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Y, Whitt Angela, ed. Get your head out of the fridge!: How to stop being a foodaholic. New York: Perigee Books, 1985.

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National Coalition Against Domestic Violence (U.S.) and Congressional Caucus for Women's Issues, eds. Stop violence against women: Women and men speak out : a special 2003 report. New York]: Lifetime Television, 2003.

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Blaney, Sue. Please stop the rollercoaster!: How parents of teenagers can smooth out the ride. 2nd ed. Acton, MA: ChangeWorks Pub. & Consulting, 2004.

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Book chapters on the topic "Stop-out"

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Mariama-Arthur, Karima. "Get Out of Your Way and Stop Sabotaging Your Success." In Poised for Excellence, 17–22. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-64574-2_3.

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Haeyen, Suzanne. "‘Stop Acting Out, Experience Emotions!’ Child, Adult and Parent Portrayed in Art Therapy: A Case History." In Art Therapy and Emotion Regulation Problems, 89–94. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-96773-8_6.

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Hong, Geonho, Youngsoo Chung, and Hyekyo Chung. "Rehabilitation of the Kumho Group Seoul Headquarters, Korea." In Case Studies of Rehabilitation, Repair, Retrofitting, and Strengthening of Structures, 95–114. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2010. http://dx.doi.org/10.2749/sed012.095.

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<p>This paper is a case study of an ofﬁce building rehabilitation in Seoul, Korea. The partly built building, originally designed as a general ofﬁce building, contained 20 stories above and seven below ground. After the ﬁrst ﬂoor slab was constructed, construction was stopped because of ﬁnancial difﬁculties of the previous owner. The new owner revised the architectural plan, design, and height of the building with 29 stories above and eight below ground. Because of the long-term stop of the construction and change of the architectural design, large-scale repair and rehabilitation work was carried out in 2006.</p>

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Romano, Simone. "The 2011 Crisis in Italy: A Story of Deep-Rooted (and Still Unresolved) Economic and Political Weaknesses." In Financial Crisis Management and Democracy, 173–84. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-54895-7_10.

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AbstractItaly went through an economic and political crisis in 2011. The trigger was the Sovereign debt crisis that shook the Eurozone due to its incomplete structure. The ingrained causes were the long-term structural problems that have plagued the Italian economy for a long time, leaving it vulnerable to external shocks. The reaction to the crisis took the form of austerity measures and reforms implemented by a technocratic Government. These policies, carried out with no external financial assistance, were meant to send a signal to markets and stop the spiral of distrust and negative self-fulfilling expectations, but they did not address the sources of the problems. Since then much has been done at both national and European levels, but it is still not enough to guarantee resilience. Italy needs to finally solve its structural problems, and the European Monetary Union (EMU) needs to complete its architecture, starting with the completion of the Banking Union. Considering the increasing social discontent and political intolerance, failing to act now might imply severe consequences when the next crisis hits.

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"Stop Orders for Getting Out." In Stop and Make Money, 95–102. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119198574.ch11.

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"4Naming the nameless: a way to stop acting out." In When the Body Speaks, 46–55. Routledge, 2003. http://dx.doi.org/10.4324/9780203360774-13.

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Westbury, Tony. "Knowing when to stop: psychology and the transition out of sport." In Faster, Fitter, Happier, 297–313. Routledge, 2017. http://dx.doi.org/10.4324/9781315525334-10.

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"Risk and Trade Management: Stop Selection, Scaling Out, and Setting Profit Targets." In Forex Conquered, 233–47. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119196839.ch10.

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Anderson, Jill E. "Die, Dig, or Get Out: Or, Stop Worrying and Love the Bomb." In Homemaking for the Apocalypse, 21–48. Routledge, 2021. http://dx.doi.org/10.4324/9780203729977-1b.

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Brody, David L. "Executive Dysfunction." In Concussion Care Manual, edited by David L. Brody, 125–27. Oxford University Press, 2019. http://dx.doi.org/10.1093/med/9780190054793.003.0019.

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Problems with organization, planning, strategy decisions, mental flexibility, optimizing risk/reward relationships, intiation, prioritizing, and goal setting are often called executive dysfunction. Collateral history and neuropsychological testing will help sort out the nature of the impairment but treat the patient, not the test result. Reduce barriers to optimal cognitive function: Optimize sleep; treat chronic pain; taper or stop cognitively impairing medications; stop alcohol and illicit drugs; prescribe moderate cardiovascular exercise; and refer to speech therapy and occupational therapy for executive function training. There are no specific pharmacological treatments for executive function. Consider trials of caffeine, stimulants, donepezil or rivastigmine, modafinil, or dopaminergic agents.

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Conference papers on the topic "Stop-out"

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Zhong, Jingrui, and Nanyan Zhu. "Synonymous Permutation Reveals Selection for Less Out-of-Frame Stop Codons." In ICBCB 2018: 2018 6th International Conference on Bioinformatics and Computational Biology. New York, NY, USA: ACM, 2018. http://dx.doi.org/10.1145/3194480.3194487.

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Uusisalo, Jarno R. A., Albert Raneda, Jani M. Vilenius, and Kalevi J. Huhtala. "Wireless Starting System and Emergency Stop for Teleoperated Hydraulic Mobile Machine." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59514.

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A small general-purpose teleoperated hydraulic mobile machine is studied at the Institute of Hydraulics and Automation at the Tampere University of Technology. Thanks to teleoperation, the operator of the machine is able to be in safe place during the driving when necessary. However, the actions of the machine can be dangerous for the people or the objects in the environment if problems appear for instance in the control system. On that account, safety issues must be considered carefully. Special attention has to be paid to stop the machine and start the engine again once the machine has recovered from an error situation. The goal of this paper is to describe the design and implementation of different kind of solutions to start and stop the machine wirelessly. The emergency stop can be activated through the wireless connection by the operator or by the automatic diagnostic system of the hydraulic mobile machine. The control system monitors the state of several hydraulic components such as hydraulic valves and motors by means of sensors during the operations of machine. The machine is teleoperated by using WLAN (Wireless Local Area Network) connection. The developed wireless starting system and emergency stop is totally independent of the WLAN link. In the first prototype of the wireless starting system and emergency stop, the wireless connection is carried out by using commercial, cost effective RF (Radio Frequency) modules. The data transfer protocol which is used by the modules is designed for this application. Protocol implementation is carried out with microcontrollers. Another version of the wireless starting system and emergency stop is carried out by using radio modems. The modems have better properties than the cost effective RF modules used in the first prototype due to their higher RF output power. Programmatically carried out automatic emergency stop, which stops the machine, if the WLAN connection between the control station and the machine breaks, is discussed. In that case, the independent wireless emergency stop connection is not needed. Implementations of the system are introduced in this paper. Also, some testing results and user experiences are described. Properties of these different implementations are compared: cost of the system, range, reliability and complexity of the implementation. By means of the studied results the most suitable solution to start the engine and stop the actions of the machine is chosen.

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Huang, H. H., and C. T. Sun. "Metamaterials With Tunable Stop Bands." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67480.

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Metamaterials are materials with manmade microstructures. Recently, researchers have looked at a class of metamaterials whose microstructures contain internal degrees of freedom that are different from those of the macro-medium. These metamaterials exhibit unusual dynamic behavior and if modeled as homogeneous solids then their effective mass densities would become negative in certain frequency range. Specifically, a new stop band in the vicinity of the local resonance frequency of the internal mass in the microstructure would result. In this paper, a one dimensional metamaterial is employed to investigate the meaning of the negative mass density in the material and the energy flow in and out of the microstructure. In addition, numerical solutions are used to illustrate the phenomenon.

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Jeong, Kwangwoo, Hoon Lee, Jaihyun Lee, Sanghoon Yoo, Byungho Lee, and Sejun Kim. "Utilization of ADAS for Improving Idle Stop-and-Go Control." In ASME 2018 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/dscc2018-8931.

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Idle Stop and Go (ISG), also known as Automatic Engine Stop/Start, has been widely implemented in production vehicles as one of the “Eco” functions that save fuel, and the application has been promoted to meet stringent fuel economy regulations throughout the world. However, the vibration and the hesitation caused by engine stop and restart often discourage the usage. Because a conventional ISG system usually restarts the engine when it sees the brake pedal release, the driver may perceive a delay in immediate vehicle launch. Furthermore, there are some driving conditions where engine on/off is undesirable or unnecessary. A quick stop-and-go situation such as making a complete stop at a stop sign is one of the conditions where ISG would be inappropriate, and in those cases, ISG may irritate the driver or even end up increasing fuel consumption with too frequent engine stop/start. In order to mitigate aforementioned issues, a utilization of Advanced Driver Assistance System (ADAS) is proposed. With the surrounding traffic information obtained from the ADAS module, ISG control algorithm is able to determine when to turn on or off the engine prior to driver’s input. The applications demonstrated in this paper include the following usage examples: The ISG control logic monitors the movement of the vehicle in front and restarts the engine out of ISG mode before brake release, which eliminates the delay in the following vehicle launch. By employing traffic sign recognition and vehicle location info, the control logic is also able to inhibit engine off when the vehicle stops at stop signs which will avoid unwanted ISG activation. In this paper, the advanced ISG control logic is introduced, and the real-world vehicle test results are provided with the description of prototype vehicle configuration.

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Gill, Christopher M., Paul Hurrell, John Francis, and Mark Turski. "Local Stress Variations at Bead Interruptions in Austenitic Multi-Pass Groove Welds." In ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-77153.

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This paper presents finite element analyses of residual stress in an austenitic multi-pass groove weld. The aim was to establish the effect upon the residual stress of stop-start interruptions during the deposition of weld beads. Comparison of measured residual stress profiles with the residual stress distributions predicted by finite element (FE) modelling aimed to validate the FE method for predicting residual stresses around stop-start features. This paper presents a comparison of measured and modelled residual stress distributions in a series of simple welded 304 stainless steel plates. The plates were machined with a v-groove designed to be filled using eight weld passes. Samples which included interrupted weld beads contained two stop-start features in the fifth pass. In the first feature the welding power was ramped down over 15 seconds; this represented normal welding good practice. The second feature investigated was an abrupt stop, where the welding power was removed instantaneously; this represented an extreme stop. Three welded plates were considered. One contained five weld passes, such that the final pass contained stop-start features and resulted in partially filling the weld groove. Two welds plates each containing eight passes have also been considered; one contained stop-start features in the fifth pass and the other contained no stop-start features. This allowed a comparison of the effect of stop-start features and the effect that subsequent beads have upon any perturbations in the residual stresses produced. Residual stress measurements have been performed using neutron diffraction. 3D weld modelling has been carried out using VFT and the Abaqus finite element package. Results from the welding FE analyses were compared with the neutron diffraction measurements. Good agreement between the modelled and measured residual stresses is achieved in the uninterrupted 8-pass sample and after deposition of the bead containing stop-start features in the 5-pass sample. Following deposition of subseqeunt beads perturbations in the residual stress profile are retained in the neutron diffraction measurements, but all perturbations are removed from the residual stress profiles predicted using both VFT and Sysweld. This work suggests that modelling welding stop-start features is only necessary in the final weld capping passes, if residual stresses over a short length scale are of interest.

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Li, Bing, Dave McNeish, Seyun Eom, D. K. Vijay, Si-tsai Lin, and Jian Li. "Determination of CANDU End Fitting Jacking Limits Using Elastic-Plastic Finite Element Analysis." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-26049.

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In one CANDU reactor unit in Ontario, the west end fitting is designed to connect to the end shield via a stop collar. The outboard end of the stop collar is welded to an attachment ring which shrink-fits on the end fitting body. The east side end fitting is supported by inboard and outboard journal rings resting on their respective bearing sleeves which allow the ‘free’ axial movement of the channel. In support of some maintenance activities, the west end fitting is required to be jacked to get certain clearance for accommodating the operating tools. The previous elastic calculation got the jacking limit of 0.35″ while did not provide enough clearance for tooling. In this paper, an elastic-plastic finite element analysis following ASME B&PV code Section III, Division 1, Subsection NB is performed to increase the jacking limit. The finite element analysis is carried out using ANSYS and validated by an ABAQUS model. In the elastic-plastic finite element analysis, the following effects are considered: strain hardening of stop collar material, stress concentration in stop collar weld, notch effect on stress concentration and fatigue in stop collar. Cyclic jacking loads as displacement controlled loading are applied in the analysis. Considering the time to the end of unit life, the maximum anticipated end fitting jacking cycles are 8. The higher jacking limit is achieved with an acceptable plastic deformation and fatigue damage at the stop collar, which is the weakest part during the end fitting jacking. The results show that the end fitting can be jacked at west side End-face with 1.17″ for 1–3 cycles, 1.15″ for 4 cycles, 1.03″ for 5 cycles, 0.95″ for 6 cycles, 0.85″ for 7 cycles and 0.80″ for 8 cycles. The jacking limits achieved in this paper provide enough clearance for the required maintenance operations.

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Linse, Nicolas, Gu¨nther G. Scherer, Alexander Wokaun, and Lorenz Gubler. "Start/Stop Induced Carbon Corrosion in Polymer Electrolyte Fuel Cells." In ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2010. http://dx.doi.org/10.1115/fuelcell2010-33190.

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The effect of different operating parameters on carbon corrosion in polymer electrolyte fuel cells was investigated by applying single triangular potential pulses to cells operated in H2/N2 mode. Corrosion rates were determined by integration of the resulting CO2 concentration peaks in the cathode exhaust gas. A significant effect of the lower voltage limit was observed which was attributed to a partial inhibition of the platinum catalyzed corrosion pathway through the formation of a stable oxide layer on the platinum surface. Humidity variation experiments showed a linear correlation between carbon corrosion rate and water vapor partial pressure. However, corrosion rate strongly decreased at low relative humidity, showing that both absolute and relative water content influence corrosion. Since the distinction between the influence of absolute and relative water content is not clear yet, interpretation of temperature effects is difficult. In case of fully humidified gases, corrosion rates showed an exponential-like increase with increasing temperature. In order to assess the relevance for real start-up and shut-down processes, carbon corrosion rates were compared to degradation data obtained in application oriented start/stop cycling experiments, which were carried out by alternating purging of the anode compartment with hydrogen and air. Generally, fuel cell performance loss rates are in good agreement with corrosion rates determined in potential pulse experiments. Due to the high complexity of real start-up and shut-down processes, however, potential pulse experiments can not provide an accurate prediction of start/stop induced degradation behavior.

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8

Bonnaud, Etienne, and Jens Gunnars. "Three Dimensional Weld Residual Stress Simulations of Piping Butt Welds: Influence of Boundary Conditions and Start/Stop Positions on Axisymmetry." In ASME 2016 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/pvp2016-63849.

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Weld residual stress simulations have become an essential tool in structural integrity assessments. In piping, two dimensional axisymmetric simulations generally give good estimations of residual stresses but clearly cannot capture the three dimensional nature of the welding process: the start/stop effects and the constant change in mechanical restraint during a weld pass. In this study, three dimensional welding simulations have been carried out for piping butt welds, first on a dissimilar metal weld in a thin-walled pipe and second on a narrow gap weld in a thicker stainless steel pipe. The effects of mechanical boundary conditions and start/stop positions have been investigated and stress fields are shown to markedly deviate from axisymmetry. As an illustration, a fracture mechanical analysis of a partial internal surface crack reveals noticeable changes in critical crack sizes.

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Yang, Lisheng, Tomonari Furukawa, Lei Zuo, and Zachary Doerzaph. "Control Design for Automated Vehicle Emergency Safe Stop System Based on Differential Dynamic Programming." In ASME 2020 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/dscc2020-3286.

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Abstract This paper presents the control algorithm and system design for a newly proposed automated emergency stop system, which aims to navigate the vehicle out of its travel lane to a safe road-side location when an emergency (e.g. driver fails to take control during fallback of the Dynamic Driving Task) occurs. To address the unique requirements of such a system, control techniques based on differential dynamic programming are developed. Optimal control sequence computation is broken down into step-by-step quadratic optimization and solved iteratively. Control constraints are addressed efficiently by a tailored Projected-Newton algorithm. The iterative control algorithm is then integrated into a real-time control system which considers both computation delay and modeling errors. The system employs a novel grid-based storage structure for recording all acceptable control commands computed within the iteration and uses a high frequency estimator for self-localization. During operation, the real-time control thread will extract commands from the grid cell corresponding to current states. Simulation results show strong potential of the proposed system for addressing the engineering challenges of the automated emergency stop function. The robustness of the system in presence of computation time delay and modelling errors is also demonstrated.

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10

Yuksel, Osman, and Cetin Yilmaz. "Size and Topology Optimization of Inertial Amplification Induced Phononic Band Gap Structures." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71342.

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In this study, inertial amplification induced phononic band gaps are attained by performing structural optimization on a compliant unit cell mechanism of a one-dimensional periodic structure. First of all, stop band characteristics of the lumped parameter model of the unit cell mechanism is discussed. Next, the distributed parameter model of the compliant unit cell is presented. In order to obtain wide and deep inertial amplification induced stop bands, both size and topology optimization methods are utilized considering the distributed parameter model of the unit cell mechanism. The band gap characteristics of the infinite periodic size and topologically optimized mechanisms are compared. Moreover, vibration transmissibility of the finite periodic size and topologically optimized mechanisms are calculated and the effect of number of unit cells is discussed. Finally, a parametric study is carried out to demonstrate the effect of topology optimization design space volume fraction on the band gap limits.

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Reports on the topic "Stop-out"

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Daugherty, Terrence. Involvement, social class and attrition in higher education : the case of the stop out. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.3181.

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Li, Howell, Tom Platte, Jijo K. Mathew, W. Benjamin Smith, Enrique Saldivar-Carranza, and Darcy M. Bullock. Using Connected Vehicle Data to Reassess Dilemma Zone Performance of Heavy Vehicles. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317321.

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The rate of fatalities at signalized intersections involving heavy vehicles is nearly five times higher than for passenger vehicles in the US. Previous studies in the US have found that heavy vehicles are twice as likely to violate a red light compared with passenger vehicles. Current technologies leverage setback detection to extend green time for a particular phase and are based upon typical deceleration rates for passenger cars. Furthermore, dilemma zone detectors are not effective when the max out time expires and forces the onset of yellow. This study proposes the use of connected vehicle (CV) technology to trigger force gap out (FGO) before a vehicle is expected to arrive within the dilemma zone limit at max out time. The method leverages position data from basic safety messages (BSMs) to map-match virtual waypoints located up to 1,050 ft in advance of the stop bar. For a 55 mph approach, field tests determined that using a 6 ft waypoint radius at 50 ft spacings would be sufficient to match 95% of BSM data within a 5% lag threshold of 0.59 s. The study estimates that FGOs reduce dilemma zone incursions by 34% for one approach and had no impact for the other. For both approaches, the total dilemma zone incursions decreased from 310 to 225. Although virtual waypoints were used for evaluating FGO, the study concludes by recommending that trajectory-based processing logic be incorporated into controllers for more robust support of dilemma zone and other emerging CV applications.

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