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Relevant bibliographies by topics / Roll Failure

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Academic literature on the topic 'Roll Failure'

Author: Grafiati

Published: 25 June 2021

Last updated: 10 February 2022

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Journal articles on the topic "Roll Failure"

1

Babakr, A., R. Bradley, and A. Al-Ahmari. "Failure Analysis of Mill Shaft Roll." Journal of Failure Analysis and Prevention 9, no. 2 (February 13, 2009): 107–13. http://dx.doi.org/10.1007/s11668-009-9215-4.

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孙, 小平. "Failure Analysis of Air Cooled Turning Roll." Metallurgical Engineering 07, no. 03 (2020): 195–202. http://dx.doi.org/10.12677/meng.2020.73027.

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HENMI, Nobuhiko, and Masaki KUROIWA. "G170015 Diagnostic method for slowly rotating roll bearing failure." Proceedings of Mechanical Engineering Congress, Japan 2012 (2012): _G170015–1—_G170015–5. http://dx.doi.org/10.1299/jsmemecj.2012._g170015-1.

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Krawczyk, Janusz, and Jerzy Pacyna. "THE ROLE OF METALLURGICAL DEFECTS AND MICROSTRUCTURE ON FAILURE FORMATION IN ROLL NECKS OF CAST IRON ROLLS." Metallurgy and Foundry Engineering 33, no. 2 (2007): 89. http://dx.doi.org/10.7494/mafe.2007.33.2.89.

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Harrer, W., R. Morrell, and R. Danzer. "Failure Analysis on a Compaction Roll made of Silicon Nitride." Practical Metallography 56, no. 4 (April 15, 2019): 262–75. http://dx.doi.org/10.3139/147.110568.

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Fu, Han-guang, Qiang Zhou, and Ming-shan Dai. "Failure Mechanism of Reflow Conductor Roll of Electroplating Tinning Line." Journal of Iron and Steel Research International 13, no. 2 (February 2006): 33–36. http://dx.doi.org/10.1016/s1006-706x(06)60040-x.

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Zhang, Jianglong, Zheng Zhang, Han Yang, and Shifu Wang. "Fatigue and fracture failure analysis of a twin-roll press." Engineering Failure Analysis 90 (August 2018): 585–96. http://dx.doi.org/10.1016/j.engfailanal.2018.02.010.

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Cruces, Diego, Cristiano Germani, and Tomislav Prokopec. "Failure of the stochastic approach to inflation beyond slow-roll." Journal of Cosmology and Astroparticle Physics 2019, no. 03 (March 29, 2019): 048. http://dx.doi.org/10.1088/1475-7516/2019/03/048.

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Domazet, Željko, Francisko Lukša, and Miro Bugarin. "Fatigue Strength of the Rolls with Grooves." Applied Mechanics and Materials 459 (October 2013): 330–34. http://dx.doi.org/10.4028/www.scientific.net/amm.459.330.

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In Steelworks Split failures of the rolls with grooves on the 3-high-roughing mill stand occurred four times. Detailed analysis of all the elements which influenced the failure was carried out. Stress analysis shownthatthe most critical area of the roll is the 7.a caliber what is corresponding with fracture positions. The fatigue strength of the material in the caliber groove for fatigue life prediction was missing and fatigue strength is determined by experimental testing.

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Huang, Li Rong, Fei Fei Liu, and Yu Hang Chen. "Failure Analysis of Hard Alloy Roll Rings and their Repairing Technology." Advanced Materials Research 476-478 (February 2012): 2599–602. http://dx.doi.org/10.4028/www.scientific.net/amr.476-478.2599.

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Roll rings are important parts in bars, and wire rolling, and their number consumed is large. They can fail and fracture due to defects of their own material and poor working conditions. There are many measures to prolong service life of roll rings, for example, their correct use and maintenance, suitable material, advanced manufacturing technology, and well machining quality, but mixed wear is inevitable. Such problems as surface defects and negative deviation of roll’s diameter caused by mixed wear can be solved by advanced repairing technology to make them meet users’ requirements, and prolong service life.

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Dissertations / Theses on the topic "Roll Failure"

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Clowe, Samantha Jane. "Oxide scale failure on AISI430 ferritic stainless steel under simulated roll-break conditions." Thesis, University of Sheffield, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.440919.

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Darth, Pontus. "Simulation of Rolling Mill to Computeand Improve Load Distribution." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-85595.

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This master thesis was done at Swerim AB in cooperation with SSAB and the Technical University of Luleå in the purpose of preventing spalling problems in hot rolling mills. Spallings are a fatigue damage that occurs on the rolls due to extreme loads and unfavorable conditions between the rolls in a mill. This report describes how the roughing mill, which is the first of a series of hot rolling mills is modelled and simulated in order to compute and improve the load distribution between the rolls. The load distribution tells a lot where the spalling problems occurs. By computer aided design and simulations with the finite element method a parametric computational model was created and used to simulate the load distribution between the work roll and backup roll with worn andfresh rolls. These simulations showed what the load distribution looks like when using new rolls and that the load distribution is especially bad when the work roll is worn. The computational model was used to simulate how the load distribution changes with different geometries on the backup roll to provide valuable input and suggest new designs on the backup roll currently used by SSAB Borlänge.

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Venkatakrishnan, R. "Role of decidual corticosteroid production in reproductive failure." Thesis, University of Warwick, 2014. http://wrap.warwick.ac.uk/62785/.

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Glucocorticoids have been implicated in many processes including successful embryo implantation, placentation, and the growth and development of the fetus. Glucocorticoid treatment has been advocated as a treatment to improve reproductive outcome for a number of reasons. Prednisolone treatment has been associated with improvement in clinical outcome in women with recurrent miscarriage and improvement in outcome of In Vitro Fertilisation. Steroids have been found to reduce the high levels of uterine natural killer cells which have been associated with recurrent miscarriage and recurrent implantation failure. Glucocorticoids stimulate peri-implantation human chorionic gonadotrophin secretion from trophoblast of early human embryo and accelerate trophoblast growth and invasion. Elevated uterine NK cell levels during the implantation window are associated with reproductive failure and can be repressed by oral glucocorticoids. We have shown that decidualizing human endometrial stromal cells profoundly up regulate the expression and activity of 11beta-hydroxysteroid dehydrogenase type 1, the enzyme that converts inert cortisone to active cortisol; thus establishing a local cortisol gradient and activation of glucocorticoid and mineralocorticoid receptors. We also found that elevated levels of uterine natural killer cells in the stroma underlying the surface epithelium of endometrium are associated with defective decidualization of resident stromal cells, inadequate cortisol biosynthesis and suboptimal induction of corticosteroid-dependent enzymes involved in lipid droplet accumulation and retinoid transport pathway. Thus, impaired decidualization limits the induction of a local cortisol gradient in the stroma underlying the surface epithelium. This in turn accounts for possible inappropriate recruitment of uterine natural killer cells and suboptimal expression of metabolic genes involved in lipid biosynthesis and retinoid storage pathway. Based on the findings, we postulate that patients suffering recurrent miscarriage associated with high uterine NK cell density may benefit from corticosteroid treatment in early pregnancy; although this assumption will need to be tested in a larger clinical trial.

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Longo, Cristina. "The role of excess weight in antibiotic treatment failure." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=104736.

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Objectives: To determine whether excess weight is associated with antibiotic treatment failure (ATF) and if this may be due to a lack of weight-based dosing.Methods: Using a historical cohort study design, data linked to Quebec administrative databases were available for 18 014 consenting patients randomly sampled from the 1992 and 1998 Santé Québec Health surveys (response rate 85%). Selected patients were within the normal weight, overweight and obese weight classes aged 20–79 years, receiving at least one episode of antibiotic therapy from the health survey date to December 2005. ATF was measured via secondary antibiotic prescriptions or additional hospitalizations for infections within the month following initial therapy for each participant. The antibiotic daily dose (DD) and daily dose to body mass index (DD:BMI) ratios were computed for those receiving an oral antibiotic prescription. Logistic regression was performed to determine whether overweight and/or obesity as well as dosing factors (e.g. DD:BMI) were significant predictors of ATF, while one-way ANOVA with Tukey-Kramer adjustment for multiple comparisons was used to determine if DD:BMI ratios differed significantly across weight groups, reflecting a lack of weight-based dosing. Results: Of the 6 179 patients selected, 828 (13.4%) had an ATF event during the outcome assessment period. Obesity was found to be a significant predictor of ATF with an OR of 1.26 (95% CI 1.03-1.52), after adjusting for other potential confounders including sociodemographic, and antibiotic-related factors (e.g. MRSA and history of antibiotic use). The antibiotic DD:BMI ratio means differed significantly between weight groups, where means decreased with increasing BMI. When included in the ATF predictive model along with other previous confounding factors, the DD:BMI variable was significant (p-value of 0.03) with a modest adjusted OR of 1.004 (95% CI 1.000-1.007). Conclusions: Obesity is a significant predictor of ATF and this association is likely due to the current “one size fits all” dosing strategy. Findings may encourage further research in the field of pharmacokinetics and family medicine to find a means of standardizing current antibiotic dosing guidelines for weight as well as implementing weight-based dosing in family practice.
Objectifs: Déterminer s'il existe un lien entre le surpoids et l'échec d'un traitement antibiotique (ÉTA) et si le fait de ne pas régler la dose en fonction du poids peut en être la cause. Méthodes: À partir d'une étude historique de cohorte, nous avons utilisé un échantillon aléatoire de 18 014 patients consentants tiré des enquêtes de Santé Québec entre 1992 et 1998 (taux de réponse de 85%). Parmi les patients sélectionnés, on retrouvait des groupes de personnes de poids normal, faisant de l'embonpoint et souffrant d'obésité avec un écart d'âge variant de 20 à 79 ans et ayant reçu au moins un traitement antibiotique entre le début de l'enquête et décembre 2005. Pour mesurer l'ÉTA, nous avons noté les répétitions de prescriptions d'antibiotiques ou les hospitalisations supplémentaires à cause d'infections au cours du mois suivant le traitement initial de chaque participant. Les ratios de la dose quotidienne (DQ) d'antibiotiques et de la dose quotidienne par rapport à l'indice de masse corporelle (DQ:IMC) ont été calculés pour les personnes avec une prescription d'antibiotiques oraux. La régression logistique à été utilisée pour déterminer si le surpoids et/ou l'obésité ainsi que d'autres facteurs de dose (ex. le ratio DQ:IMC) constituaient des variables prédictives pour l'ÉTA. Par ailleurs, l'ANOVA avec l'ajustement pour comparaisons multiples de Tukey-Kramer ont été utilisés pour déterminer si les ratios DQ:IMC variaient de façon significative d'un groupe à l'autre, ce qui signalerait l'absence de dosage en fonction du poids. Résultats : Parmi les 6 179 patients sélectionnés, 828 (13.4%) avaient subi un ÉTA durant la période d'évaluation. Les résultats ont révélé que l'obésité constituait un facteur significatif de l'ÉTA avec un rapport de cote (RC) de 1.26 (95% IC 1.03-1.52), ceci après avoir ajusté les données en fonction des variables de contrôles possibles comme les variables sociodémographiques ou les facteurs reliés aux antibiotiques (ex. le SARM et les antécédents d'utilisation d'antibiotiques). Les moyennes du ratio DQ:ICM variaient de façon significative d'un groupe à l'autre, alors que les moyennes diminuaient quand l'ICM augmentait. Lorsqu'on l'inclut dans le modèle prédictif de l'ÉTA avec d'autres variables précédents, la variation du ratio DQ:ICM était significative (valeur p de 0.03) avec un RC ajusté de 1.004 (95% IC 1.000-1.007).Conclusions : L'obésité constitue un facteur prédictif significatif de l'ÉTA. Cette association est probablement reliée au fait que les doses sont administrées uniformément parmi les différents groupes de poids. Ces découvertes devraient encourager d'autres recherches dans le domaine de la pharmacocinétique et de la médecine familiale, afin de pouvoir établir des normes de dosage des antibiotiques axées sur le poids et d'intégrer dans la pratique médicale courante l'administration de doses en fonction du poids.

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Moustapha, Ahmad. "The role of rejection in aortic valve allograft failure." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq24886.pdf.

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Barlow, Clifford William. "The role of potassium during exercise in heart failure." Thesis, University of Oxford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240607.

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Roxborough, Heather Elaine. "The role of carbamylation in atherogenesis in renal failure." Thesis, Queen's University Belfast, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388178.

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Wingham, Jennifer. "Living with heart failure : self management, informed support and the role of the heart failure specialist nurse." Thesis, Exeter and Plymouth Peninsula Medical School, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.553683.

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People with heart failure frequently experience poor quality of life, often exacerbated by co-morbidities. This demands complex self-management activities, often supported by family members in care roles, and includes input from community Heart Failure Specialist Nurses (HFSNs) that is known to reduce hospital readmissions. There is, however, a paucity of knowledge about the perceptions of people living with heart failure concerning self-management strategies. Aim This thesis is a longitudinal study exploring emergent patterns and styles of self- management of persons with heart failure, the impact of family members and HFSNs. Method Thirty-one theoretically sampled participants with heart failure were recruited from a district general hospital between October 2004 and September 2006. The sample participated in home-based, audio-taped, semi-structured interviews prior to nurse intervention, describing how heart failure affected their lives, focusing on self-management strategies. The HFSNs conducted home visits and telephone contacts according to individual needs independent of the research. At five months, 23 participants completed a diary for 14 days. Twenty- seven participants (three died, and one withdrew) were interviewed at six 3 months to explore how self-management strategies had changed. The HFSNs participated in a focus group. Constructivist grounded theory and reflexive accounting informed data collection and analysis, leading to the inductive development of an explanatory framework for emergent themes, one of which, Informed Support, serves as an original and significant contribution to the literature. Results Successful management is a complex biopsychosocial activity, involving reconstructions of identity, symptom management, and relationship management, while living with a chronic and uncertain condition that severely compromises life activities. Central to successful management is Informed Support, where family members collaboratively develop a range of activities and attributes to augment self-management. This was perceived as most effective when the HFSNs were able to adopt a 'whole family' approach. Conclusion Heart failure self-management is a dynamic, complex and adaptive activity that can be positively and significantly shaped by Informed Support from family members. Community based HFSNs can influence, but need to recognise differing styles of, self-management.

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Van, Kuiken Debra M. "The Role of Hope in Self-care in Persons with Heart Failure." University of Cincinnati / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1226586770.

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Mota, Solis NoeÌ. "The role of microstructure on failure in TiAl-based alloys." Thesis, University of Birmingham, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409044.

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Books on the topic "Roll Failure"

1

Canada, Transportation Safety Board of. Engine room fire and subsequent failure of the COb2s distribution manifold roll-on/roll-off passenger ferry Queen of Surrey, Queen Charlotte Channel, British Columbia, 12 May 2003. [Gatineau, Québec]: Transportation Safety Board of Canada, 2006.

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Ryan, Robert S. The role of failure/problems in engineering: A commentary on failures experienced--lessons learned. [Washington, DC]: National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, 1992.

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Jugdutt, Bodh I., ed. The Role of Nitric Oxide in Heart Failure. Boston, MA: Springer US, 2004. http://dx.doi.org/10.1007/b105387.

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Richards, B. P. The role of microscopy in semiconductor failure analysis. Oxford: Oxford University Press, 1992.

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The failure of feminism. Buffalo, N.Y: Prometheus Books, 1988.

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Entrepreneurs in history-- success vs. failure: Entrepreneurial role models. Rochester, N.Y: Cameo Press, 1995.

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Mosey, David. Reactor accidents: Nuclear safety and the role of institutional failure. Guildford, Surrey, England: Nuclear Engineering International Special Publications in conjunction with Butterworths, 1990.

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Bronson, Richard, ed. The Male Role in Pregnancy Loss and Embryo Implantation Failure. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-18881-2.

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Hänninen, Hannu. Negotiated risks: The Estonia accident and the stream of bow visor failures in the Baltic ferry traffic. [Helsinki]: Helsinki School of Economics, 2007.

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Petroski, Henry. To engineer is human: The role of failure in successful design. London: Macmillan, 1985.

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Book chapters on the topic "Roll Failure"

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Jong, Ya-Wen, Chun-Feng Liao, Li-Chen Fu, and Ching-Yao Wang. "A Rotating Roll-Call-Based Adaptive Failure Detection and Recovery Protocol for Smart Home Environments." In Lecture Notes in Computer Science, 201–8. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-02868-7_25.

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Aridi, Mohd Radzi, Nao-Aki Noda, Yoshikazu Sano, Kakeru Takata, and Sun Zifeng. "Effect of the Residual Stress to the Fatigue Failure of the Bimetallic Work Roll in 4-High Rolling Mill." In Springer Proceedings in Materials, 389–93. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-76481-4_33.

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Kitakaze, Masafumi, Tetsuo Minamino, Koichi Node, Seiji Takashima, Hiroharu Funaya, Tsunehiko Kuzuya, and Masatsugu Hori. "Role of Adenosine in Cardioprotection." In Heart Failure, 183–95. Tokyo: Springer Japan, 2000. http://dx.doi.org/10.1007/978-4-431-68331-5_17.

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Decramer, M. "Role of Extradiaphragmatic Musculature in Breathing." In Ventilatory Failure, 62–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84554-3_5.

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Marín-García, José. "The Multidimensional Role of Mitochondria in Heart Failure." In Heart Failure, 73–106. Totowa, NJ: Humana Press, 2010. http://dx.doi.org/10.1007/978-1-60761-147-9_5.

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Okamoto, Hiroshi, Masashi Watanabe, Hideki Kumamoto, Satoru Chiba, Keiji Yoneya, Hisao Onozuka, Taisei Mikami, Hideaki Kawaguchi, Kazuhiro Abe, and Akira Kitabatake. "Cardiac Remodeling: Role of Neovascularization in Heart Failure." In Heart Failure, 89–102. Tokyo: Springer Japan, 2000. http://dx.doi.org/10.1007/978-4-431-68331-5_8.

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Marín-García, José. "Cardiac Function in Heart Failure: The Role of Calcium Cycling." In Heart Failure, 15–21. Totowa, NJ: Humana Press, 2010. http://dx.doi.org/10.1007/978-1-60761-147-9_2.

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Gottfried, S. B. "The Role of PEEP in the Mechanically Ventilated COPD Patient." In Ventilatory Failure, 392–418. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-84554-3_23.

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Sarwar, Chaudhry M. S., Aditi A. Bhagat, Stefan D. Anker, and Javed Butler. "Role of Hyperkalemia in Heart Failure and the Therapeutic Use of Potassium Binders." In Heart Failure, 537–60. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/164_2017_25.

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Silverberg, Donald S., Dov Wexler, Adrian Iaina, and Doron Schwartz. "Role of Anemia in Acute and Chronic Heart Failure and the Role of Erythropoietin in Its Correction." In Acute Heart Failure, 519–27. London: Springer London, 2008. http://dx.doi.org/10.1007/978-1-84628-782-4_48.

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Conference papers on the topic "Roll Failure"

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Fang, Bo, Jieyang Chen, karthik Pattabiraman, Matei Ripeanu, and Sriram Krishnamoorthy. "Towards Predicting the Impact of Roll-Forward Failure Recovery for HPC Applications." In 2019 49th Annual IEEE/IFIP International Conference on Dependable Systems and Networks – Supplemental Volume (DSN-S). IEEE, 2019. http://dx.doi.org/10.1109/dsn-s.2019.00012.

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Han, Changwoon, Chulmin Oh, and Won Sik Hong. "Failure Mechanism and Reliability Design Study of Bendable Electronic Module." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-86006.

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An electronic module was designed and developed to bend easily and repeatedly for a mobile application by a low-cost roll-to-roll manufacturing process [1]. The schematic diagram of the bendable module and its numerical model are shown at Fig.1. In the module, a thin silicon electronic chip is embedded in a polymer-based encapsuling adhesive between flexible copper clad polyimide (PI) layers. The thickness of silicon chip is 50 μm. Au bump is attached to the silicon and copper lines with anisotropic conductive film (ACF).

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Arun, K., Chandbadshah S B V J, B. Eswaraiah, and J. Narendra kumar. "LUBRICANT FAILURE ANALYSIS OF ROLL NECK BEARINGS OF WIRE ROD MILL: A CASE STUDY." In National Conference on Trends in Engineering and Technology. AI Publications, 2017. http://dx.doi.org/10.22161/ijaers/nctet.2017.me.3.

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Ivanov, K. V. "Structure, deformation behavior and failure of aluminum and copper processed by accumulative roll bonding." In ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016. Author(s), 2016. http://dx.doi.org/10.1063/1.4966369.

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Yang, Yu-Ping, and William C. Mohr. "Weld Residual Stress and Creep-Fatigue Analysis of a Furnace Roll in a Continuous Hot Dip Coating Line." In ASME 2016 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/pvp2016-63733.

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A catastrophic furnace roll failure was observed in a continuous hot dip line. The failure occurred in the weld joining an end bell to a roll shell and resulted in the complete separation of the end bell from the roll shell. The roll had been in service for approximately 7 months before failure. Typically, rolls in this furnace roll position have a short life, less than 1 year. The roll shell and the end bell were made of high-temperature alloy. The journal was made of stainless steel. Inconel welding electrode was used as the weld filler material. The roll shell and the end bells were shrink fitted before welding. The welding process was flux-cored arc welding (FCAW). Upon completion of welding post-weld heat treatment (PWHT) was applied for 3 hours at 1093°C to the entire roll. To extend the roll life, a new design and a new welding method, electron beam welding (EBW) without filler metal, were proposed. To evaluate the effectiveness of the new design and the new welding process, four kinds of numerical analyses were conducted on the new design for both FCAW and EBW which included a weld residual stress analysis, a PWHT analysis, a heat transfer analysis, and a creep-fatigue analysis. Analysis results showed that the new design with EBW has lower stress and creep strain than with FCAW, which could improve the roll creep-fatigue life.

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Miettinen, Juha, Pekka Salmenpera¨, Ville Ja¨rvinen, and Matti Hirvonen. "Wireless Operation Monitoring System for Polymer Covered Cylinders in Rolling Contact." In ASME 2002 Engineering Technology Conference on Energy. ASMEDC, 2002. http://dx.doi.org/10.1115/etce2002/struc-29160.

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Polymer covered cylindrical rolls are typically used in different paper machine sections like in calenders and in coating units. The main reason for the use of soft-coated rolls is that by using the soft rolls the contact area becomes larger. Strongly loaded line contact causes deformations and heat generation in the polymer cover. In paper production process impurities, like paper pieces, may catch on the surface of the roll. Impurities cause locally larger deformation in the cover. The local deformation produces a higher local temperature area, which can cause cracks in the cover, to loosen the cover from the base and to fracture the cover locally. If a local failure happens the fragments of the cover can damage also the other rolls. In this paper an operation monitoring system for on-line monitoring of roll cover is presented. The system is installed in a laboratory pilot roll installation, where the rolling contact consists of a hard and a soft roll. The measurement system consists of on-line measurement of acoustic emission (AE) of the roll. Additionally the temperature distribution of the roll, the ploymer cover and the position angle of the roll are measured. The measurement signal is transferred from the rotating roll via wireless local area network (WLAN) to the measurement computer. The measurement control computer is connected to the LAN of the laboratory and the measurements can be followed and analyzed with different computers and also via Internet. The paper describes the principles of acoustic emission signal processing and analysis and the construction of the wireless Ethernet-based operation monitoring system.

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Wang, Jian-Mei, Qing-Xue Huang, and Shi-Chun Yang. "Numerical Analysis on Fatigue Failure of Sleeve in Oil-Film Bearing." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63265.

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Due to the three-segment loop-like damage axially along inner surface of bearing sleeve under rolling loadcases, to quantitatively analyze damage mechanism, a mathematical model of oil-film bearing in the process of roll was developed by 3-D elastic contact boundary element method. A program of automatically creating 3-D surface grid model has been developed to check data and display deformation, the properties of stress and deformation fields have been analyzed, the rules of 3D contact pressure distribution among contact areas have been quantitatively described, which provided an effective way to decrease wear and adhesive damage of sleeve, and to increase load capacity of oil-film bearing and its service life as well.

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Ivanov, K. V., S. V. Fortuna, T. A. Kalashnikova, and N. G. Rodkevich. "The effect of aluminum nanoparticles on the structure, mechanical properties and failure of aluminum processed by accumulative roll bonding." In PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2017 (AMHS’17). Author(s), 2017. http://dx.doi.org/10.1063/1.5013753.

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Mousa, Saeed, and Gap-Yong Kim. "Direct Adhesion of Warm Roll-Bonded Al1100/Polyurethane/Al1100 Sandwich Composite." In ASME 2015 International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/msec2015-9467.

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Metal/polymer sandwich composites combine high stiffness, lightweight characteristics and favorable forming behavior due to the strong metal skin and soft polymer core. Among various techniques available for the manufacturing of metal/polymer sandwich composites, roll bonding can provide advantages over other techniques due to its mass production capability. Roll bonding of multilayer composites, however, is challenging due to significant differences in the mechanical properties and adhesion characteristics of polymeric and metallic materials. In this study, warm roll bonding (WRB) has been applied to fabricate a sandwich composite consisting of commercially pure aluminum (AL1100) and polyurethane (PU) sheets. The effects of WRB process parameters, which include surface roughness, preheat temperature, and rolling speed, on the adhesion strength have been investigated by the peel test. The failure mode changed from adhesive to cohesive as surface roughness increased. The optimal temperature and rolling speed were identified for WRB of the three-layer AL1100/PU/AL1100 sandwich composite.

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Greaves, Thomas H. "Implementing Corporate Initiatives." In 2012 9th International Pipeline Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ipc2012-90122.

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IT enabled corporate projects have failure rates that approach 68% (Standish CHAOS 2009 Report). This paper will chronicle the steps needed to increase your chances of successfully implementing a corporate initiative. Examples will be provided based on the recent roll out of a revamped Management of Change (MOC) program that included simple processes and policies, appropriate training at the right time, and an IT tool that was well established prior to roll out.

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Reports on the topic "Roll Failure"

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Wade, Jr, and Robert W. The Military's Role in Drug Interdiction is Headed for Failure. Fort Belvoir, VA: Defense Technical Information Center, May 1989. http://dx.doi.org/10.21236/ada217476.

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Zhang, Jiwang. The Role of Necroptosis in the Pathophysiology of Bone Marrow Failure. Fort Belvoir, VA: Defense Technical Information Center, March 2014. http://dx.doi.org/10.21236/ada604192.

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El-Neweihi, Emad, and Jayaram Sethuraman. The Role of a Module in the Failure of a System. Fort Belvoir, VA: Defense Technical Information Center, July 1991. http://dx.doi.org/10.21236/ada244277.

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El-Neweihi, Emad, and Jayaram Sethuraman. A Study of the Role of Modules in the Failure of Systems. Fort Belvoir, VA: Defense Technical Information Center, July 1990. http://dx.doi.org/10.21236/ada225811.

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El-Neweihi, Emad, Jayaram Sethuraman, and A. M. Abouammoh. The Role of a Group of Modules in the Failure of Systems. Fort Belvoir, VA: Defense Technical Information Center, August 1991. http://dx.doi.org/10.21236/ada244278.

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Aifantis, Katerina E. Collaborative Research: The Role of Grain Boundary Structure and Chemistry in Materials Failure. Office of Scientific and Technical Information (OSTI), April 2018. http://dx.doi.org/10.2172/1431031.

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Rogers, Heather L. Social Support, Heart Failure, and Acute Coronary Syndromes: The Role of Inflammatory Markers. Fort Belvoir, VA: Defense Technical Information Center, March 2008. http://dx.doi.org/10.21236/ad1013778.

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Hackney, Steve, Erik Herbert, and Prasad Soman. Collaborative Research: The Role of Grain Boundary Structure and Chemistry in Materials Failure. Office of Scientific and Technical Information (OSTI), July 2016. http://dx.doi.org/10.2172/1768045.

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Orning, Tanja. Professional identities in progress – developing personal artistic trajectories. Norges Musikkhøgskole, August 2018. http://dx.doi.org/10.22501/nmh-ar.544616.

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We have seen drastic changes in the music profession during the last 20 years, and consequently an increase of new professional opportunities, roles and identities. We can see elements of a collective identity in classically trained musicians who from childhood have been introduced to centuries old, institutionalized traditions around the performers’ role and the work-concept. Respect for the composer and his work can lead to a fear of failure and a perfectionist value system that permeates the classical music. We have to question whether music education has become a ready-made prototype of certain trajectories, with a predictable outcome represented by more or less generic types of musicians who interchangeably are able play the same, limited canonized repertoire, in more or less the same way. Where is the resistance and obstacles, the detours and the unique and fearless individual choices? It is a paradox that within the traditional master-student model, the student is told how to think, play and relate to established truths, while a sustainable musical career is based upon questioning the very same things. A fundamental principle of an independent musical career is to develop a capacity for critical reflection and a healthy opposition towards uncontested truths. However, the unison demands for modernization of institutions and their role cannot be solved with a quick fix, we must look at who we are and who we have been to look at who we can become. Central here is the question of how the music students perceive their own identity and role. To make the leap from a traditional instrumentalist role to an artist /curator role requires commitment in an entirely different way. In this article, I will examine question of identity - how identity may be constituted through musical and educational experiences. The article will discuss why identity work is a key area in the development of a sustainable music career and it will investigate how we can approach this and suggest some possible ways in this work. We shall see how identity work can be about unfolding possible future selves (Marcus & Nurius, 1986), develop and evolve one’s own personal journey and narrative. Central is how identity develops linguistically by seeing other possibilities: "identity is formed out of the discourses - in the broadest sense - that are available to us ..." (Ruud, 2013). The question is: How can higher music education (HME) facilitate students in their identity work in the process of constructing their professional identities? I draw on my own experience as a classically educated musician in the discussion.

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Chandrasekhar, C. P. The Long Search for Stability: Financial Cooperation to Address Global Risks in the East Asian Region. Institute for New Economic Thinking Working Paper Series, March 2021. http://dx.doi.org/10.36687/inetwp153.

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Forced by the 1997 Southeast Asian crisis to recognize the external vulnerabilities that openness to volatile capital flows result in and upset over the post-crisis policy responses imposed by the IMF, countries in the sub-region saw the need for a regional financial safety net that can pre-empt or mitigate future crises. At the outset, the aim of the initiative, then led by Japan, was to create a facility or design a mechanism that was independent of the United States and the IMF, since the former was less concerned with vulnerabilities in Asia than it was in Latin America and that the latter’s recommendations proved damaging for countries in the region. But US opposition and inherited geopolitical tensions in the region blocked Japan’s initial proposal to establish an Asian Monetary Fund, a kind of regional IMF. As an alternative, the ASEAN+3 grouping (ASEAN members plus China, Japan and South Korea) opted for more flexible arrangements, at the core of which was a network of multilateral and bilateral central bank swap agreements. While central bank swap agreements have played a role in crisis management, the effort to make them the central instruments of a cooperatively established regional safety net, the Chiang Mai Initiative, failed. During the crises of 2008 and 2020 countries covered by the Initiative chose not to rely on the facility, preferring to turn to multilateral institutions such as the ADB, World Bank and IMF or enter into bilateral agreements within and outside the region for assistance. The fundamental problem was that because of an effort to appease the US and the IMF and the use of the IMF as a foil against the dominance of a regional power like Japan, the regional arrangement was not a real alternative to traditional sources of balance of payments support. In particular, access to significant financial assistance under the arrangement required a country to be supported first by an IMF program and be subject to the IMF’s conditions and surveillance. The failure of the multilateral effort meant that a specifically Asian safety net independent of the US and the IMF had to be one constructed by a regional power involving support for a network of bilateral agreements. Japan was the first regional power to seek to build such a network through it post-1997 Miyazawa Initiative. But its own complex relationship with the US meant that its intervention could not be sustained, more so because of the crisis that engulfed Japan in 1990. But the prospect of regional independence in crisis resolution has revived with the rise of China as a regional and global power. This time both economics and China’s independence from the US seem to improve prospects of successful regional cooperation to address financial vulnerability. A history of tensions between China and its neighbours and the fear of Chinese dominance may yet lead to one more failure. But, as of now, the Belt and Road Initiative, China’s support for a large number of bilateral swap arrangements and its participation in the Regional Comprehensive Economic Partnership seem to suggest that Asian countries may finally come into their own.

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