Relevant bibliographies by topics / Process control case studies

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Process control case studies'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 February 2022

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Journal articles on the topic "Process control case studies"

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Doyle, Francis J., Edward P. Gatzke, and Robert S. Parker. "Practical case studies for undergraduate process dynamics and control using process control modules." Computer Applications in Engineering Education 6, no. 3 (1998): 181–91. http://dx.doi.org/10.1002/(sici)1099-0542(1998)6:3<181::aid-cae7>3.0.co;2-9.

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Kestel, Steve, Matthew Gray, Weixin Shi, and Junquan Yan. "Energy Savings From Advanced Process Control: Two Case Studies." Proceedings of the Water Environment Federation 2013, no. 3 (January 1, 2013): 273–90. http://dx.doi.org/10.2175/193864713813503161.

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Hu, S. J. "Statistical Process Control For Correlated Processes: Case Studies In Automotive Manufacturing." International Journal of Modelling and Simulation 16, no. 4 (January 1996): 218–23. http://dx.doi.org/10.1080/02286203.1996.11760302.

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Punter, John. "Aesthetic control within the development process: A case study." Land Development Studies 3, no. 3 (September 1986): 197–212. http://dx.doi.org/10.1080/02640828608723914.

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Madić, Miloš, Marko Kovačević, Miroslav Radovanović, and Vladislav Blagojević. "SOFTWARE TOOL FOR LASER CUTTING PROCESS CONTROL – SOLVING REAL INDUSTRIAL CASE STUDIES." Facta Universitatis, Series: Mechanical Engineering 14, no. 2 (August 2, 2016): 135. http://dx.doi.org/10.22190/fume1602135m.

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Laser cutting is one of the leading non-conventional machining technologies with a wide spectrum of application in modern industry. It order to exploit a number of advantages that this technology offers for contour cutting of materials, it is necessary to carefully select laser cutting conditions for each given workpiece material, thickness and desired cut qualities. In other words, there is a need for process control of laser cutting. After a comprehensive analysis of the main laser cutting parameters and process performance characteristics, the application of the developed software tool “BRUTOMIZER” for off-line control of CO2 laser cutting process of three different workpiece materials (mild steel, stainless steel and aluminum) is illustrated. Advantages and abilities of the developed software tool are also illustrated.
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Glasson, Brian, and Philip Booth. "Negotiation and delay in the development control process: case studies in Yorkshire and Northumberside." Town Planning Review 63, no. 1 (January 1992): 63. http://dx.doi.org/10.3828/tpr.63.1.3ul5h0503w706953.

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Cram, W. Alec, M. Kathryn Brohman, and R. Brent Gallupe. "Addressing the Control Challenges of the Enterprise Architecture Process." Journal of Information Systems 29, no. 2 (September 1, 2014): 161–82. http://dx.doi.org/10.2308/isys-50913.

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ABSTRACT This paper examines the enterprise architecture process from the perspective of information systems controls, which refer to attempts to influence the behavior of employees in order to achieve organizational goals. Although controls have been extensively studied in processes such as systems development, there is little research examining control within the enterprise architecture process, despite its rising importance in today's organizations. This paper examines how enterprise architecture controls are employed in practice and considers the challenges faced in their design and operation. Drawing on empirical data from two in-depth case studies, enterprise architecture controls are classified and analyzed using COBIT 5. Our findings identify a series of specific challenges with enterprise architecture controls. Based on these challenges, we outline recommendations to practitioners in overseeing the enterprise architecture process and develop propositions to help guide future research initiatives to enhance enterprise architecture performance.
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Sonda, Paul, Andrew Yeckel, Jeffrey J. Derby, and Prodromos Daoutidis. "The feedback control of the vertical Bridgman crystal growth process by crucible rotation: two case studies." Computers & Chemical Engineering 29, no. 4 (March 2005): 887–96. http://dx.doi.org/10.1016/j.compchemeng.2004.09.013.

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Manwatkar, Sushant K., M. Swathi Kiranmayee, Abhay Kumar Jha, P. Ramesh Narayanan, K. Sreekumar, and Parameshwar Prasad Sinha. "Metallurgical Failure Analysis-Few Case Studies." Materials Science Forum 710 (January 2012): 695–700. http://dx.doi.org/10.4028/www.scientific.net/msf.710.695.

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Advancement in material science has reached great heights both in terms of development and properties but still failures continue to happen. Failure is often accompanied by economic and human loss. Failures generally occur due to error of knowledge, error of performance and error of intent which comprises improper design and/or material selection, deficiency in processing and assembly. Failure analyst plays an important role in evaluating the causes of failure by using various analytical tools to arrive at the conclusion and suggests remedies to avoid its reoccurrence. This paper highlights the important steps in failure analysis with a few case studies demonstrated. Case studies include the failure of plumbing tube used in engine gimbal control system of liquid propulsion system, where failure was initiated due to process deficiency and its propagation was facilitated under fatigue loading. In the other case study discussed, failure of steel fasteners was due to hydrogen induced stress corrosion cracking (HISCC).
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M Roque, Ana Filipa, Maria do Céu Alves, and Mário Lino Raposo. "Management accounting and control system in the u-model internationalization process. A case study." Innovar 31, no. 80 (April 1, 2021): 9–28. http://dx.doi.org/10.15446/innovar.v31n80.93661.

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This study examines the role of management accounting and management control systems (macs) in the successful implementation of the Uppsala Internationalization Model (U-Model) and in the improvement of firms’ performance. To achieve this, and after a broad literature review, a case study was conducted. Using a dynamic and “inside-out” approach, data was collected through interviews and documental analysis. The internationalization model (im) of a company and the relationship between macs and its internationalization strategy (U-Model) were analyzed. This study emphasizes the existence of several roles (passive and active) of macs and highlights the fact that these systems are used throughout the internationalization process (ip) in differentiated ways. As far as we know, it is the first time the relationship between macs and a specific internationalization model (U-Model) has been studied. This research helps to increase knowledge in practice, as it helps companies understand how they can adjust their macs according to their U-Model development phase. Given the growing interest in internationalization, we hope to contribute to improving the knowledge on the relationship between macs and the ip and its effects on companies’ performance. This study points to promising results that justify further studies of this relationship.
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Dissertations / Theses on the topic "Process control case studies"

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Law, Chit-lun, and 羅哲倫. "Process re-engineering: theory and case study." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31267336.

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Maguire, Thomas Michael. "Social control and the labour process : a case study of a Northern Ireland telecommunications plant." Thesis, Queen's University Belfast, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357485.

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Ihekire, Chika Lucy. "Decoupling control of a multiple-input, multiple-output process| Case studies of multi-tank system and distillation column." Thesis, California State University, Long Beach, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10001543.

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Multiple Input-Multiple Output (MIMO) systems are very common in process industries, but can be difficult to control. A phenomenon called coupling occurs in a MIMO system when the controller output from one loop acts as disturbance to other control loops. This thesis studies a solution to coupling by introducing a decoupler to a Proportional Integral Differential (PID) control system. A decoupler is a feed-forward controller added to the traditional feedback loop to cancel out loop disturbance. The effect of a decoupler on the performance of control system was explored by comparing (1) the time it takes to achieve control and (2) the combined error incurred during the control process. In this study, a simulation software, LoopPro is used to model and control two systems; multi-tank system and distillation column. Step test data were used to identify process model and a tuning procedure based on Internal Model Control is illustrated. The extent of loop interaction was also analyzed from the Relative Gain Matrix.

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Swartz, Dominique Sheronica. "The policy making process : the case of South Africa's Tobacco Amendment Act." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52554.

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Thesis (MPhil)--Stellenbosch University, 2001.
ENGLISH ABSTRACT: Policies made by the government of a democratic country affect the lives of all citizens whether directly or indirectly. Policies should therefore represent the values of a democratic society. Since South Africa's transition to democracy in 1994, policymaking processes have promised to be everything that those in the past were not. The new government's ruling policy has promised to maximize opportunities for political participation, especially in terms of citizens being able to influence governmental decision making in cases where it affects their lives. The Tobacco Products Control Amendment Act of 1999 is regarded by many as one of the world's most controversial and regulated tobacco control policies. What makes this case exceptional is the fact that the policy process thereof seems to have caused some concern with regard to issues such as transparency, participation and consultation. The study, therefore, aims to establish the degree of political participation and consultation that one could observe in the making of the new tobacco law. It also gives an overview of what the policy-making process in general is like in South Africa; this is then compared with the case of the Tobacco Amendment Act. The study also focuses on broader aspects of the policy process such as the role of public policy with regard to the problems of the society. This research assignment is intent on describing the nature of the policy process of the Tobacco Amendment Bill and, by doing this, to promote the principles of democracy such as transparency, accountability and legitimacy, to which so many South Africans have dedicated their lives
AFRIKAANSE OPSOMMING: Openbare beleid en die daarmee gepaardgaande besluite wat deur die regering van 'n demokratiese land gemaak word, affekteer die lewens van elke burger direk of indirek. Beleid moet dus so geformuleer word dat dit die waardes van 'n demokratiese samelewing reflekteer. Sedert Suid-Afrika se oorgang tot demokrasie in 1994, was die nuwe regering se belofte dat beleidmaking meer inklusief sal wees as die van die verlede. Die nuwe bedeling se regeringsbeleid sou daarvolgens optimale geleenthede vir politieke deelname en seggenskap in belangrike beleidsbesluite skep. Die Wysigingswetontwerp op Tabakprodukte van 1999 word deur vele beskou as een van die mees kontroversiële en streng beheerde tabak beleide in die wêreld. Wat die geval so besonder maak, is die feit dat daar diegene is wat meen dat kwessies soos deursigtigheid, politieke deelname en konsultasie in die parlementêre beleidsproses agterweë gelaat is. Hierdie studie beoog dus om die mate van politieke deelname en konsultasie in die beleidsproses van die Wysigingswetontwerp op Tabakprodukte ondersoek. Die studie verskaf ook 'n oorsig oor hoe die algemene beleidsproses in Suid-Afrika daar uitsien. Dit word dan vervolgens vergelyk met die beleidsproses van die nuwe Tabakwet. Verder fokus dit ook op wyer aspekte van die beleidsproses soos die rol wat openbare beleid in die aanspreek van publieke probleme speel. In geheel, poog dit dus om die aard van die beleidsproses van die Wysigingswetontwerp op Tabakprodukte te beskryf en sodoende die beginsels van demokrasie, onder andere deursigtigheid, verantwoordbaarheid en legimiteit, waaraan so baie Suid-Afrikaners hul lewens toegewy het, te bevorder.
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Barnes, Alison Kate School of Industrial Relations &amp Organisational Behaviour UNSW. "'The centre cannot hold': resistance, accommodation and control in three Australian call centres." Awarded by:University of New South Wales. School of Industrial Relations and Organisational Behaviour, 2005. http://handle.unsw.edu.au/1959.4/22026.

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Drawing upon case studies of three organisations operating six call centres in Australia, this thesis explores the manifestations and interplay of employee resistance and accommodation in response to five facets of employer control: electronic monitoring; repetitious work; emotional control; the built environment; and workplace flexibility. Accommodation refers to the ways workers protect themselves from and adapt to the pressures that make up their day-to-day experiences of work. Accommodation, unlike resistance, which implies opposition to control, may superficially resemble consent to control. I argue that resistance and accommodation are not polar opposites; rather they are both reflections of the conflict and tensions that lie at the heart of the employment relationship. At the study sites, employees utilised resistance and accommodation both separately and concurrently. An explanation of these seemingly contradictory responses and of the links among accommodation individual resistance and collective resistance lies in the concept of ???self???. In this thesis, ???self??? refers to workers??? perceptions of fairness, dignity and autonomy. I examine how these notions frame worker discontent and promote employee solidarity. ???Everyday resistance???, a concept first developed by Scott (1985) in relation to peasant struggles, is employed to highlight the existence of subterranean struggles in workplaces that otherwise appear to be harmonious. At the study sites, everyday resistance was a multi-faceted, widely employed strategy whose strength lay primarily in its immediate impact. There was, however, no necessary sequential development from accommodation, through everyday resistance to overt, formal forms of conflict. What was evident was that multiple responses to employer control could co-exist and inhibit or promote one another. But it was through organised collective resistance that more formalised gains were made and widely held grievances addressed. I suggest that, although everyday resistance may lay the groundwork for more formal struggles, one should not conclude that traditional collective resistance is ???genuine??? resistance and everyday resistance is simply a second-best prelude to it. Although conflict is always present, its intensity differs. If we are to understand the complexity of worker responses to managerial control, we need to expand the theoretical frameworks within which we analyse and interpret conflict.
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Amarilla, Rosemara Santos Deniz. "Identificação e análise dos processos de negócio de empresas de pequeno porte do setor da construção civil." Universidade Tecnológica Federal do Paraná, 2013. http://repositorio.utfpr.edu.br/jspui/handle/1/586.

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Capes
O presente estudo tem como objetivo identificar e analisar comparativamente os principais processos de negócio de empresas de pequeno porte do subsetor de edificações da construção civil. Para tanto, foi utilizado o método de pesquisa qualitativa e estudo de casos múltiplos como técnica principal. Participaram deste trabalho, cinco empresas que estão localizadas na cidade de Curitiba, Paraná. Para a coleta de dados, foram realizadas entrevistas semi-estruturadas, análises de documentos e observações diretas. A partir das informações obtidas, desenvolveu-se graficamente o mapeamento dos processos de negócio de cada empresa utilizando-se a notação BPMN. O estudo mostrou que os processos e as atividades das empresas deste setor apresentam características comuns, facilitando assim, a padronização das melhores práticas. Com o estudo de outros casos, surgirão outros aspectos semelhantes que poderão ser utilizados na elaboração de um modelo de referência que apresenta orientação específica sobre como os processos de negócio podem ser gerenciados nas organizações do subsetor de edificações.
The present study has as objective to identify and analyze comparatively the main business processes of small companies of the subsector of edifications of the civil construction. Therefore, was used the qualitative research method and multiple case study as the main technique. Participated of this work, five companies that are located in the city of Curitiba, Paraná. For data collection were performed semi-structured interviews, document analysis and direct observations. From the information obtained, developed graphically mapping the business processes of each company using the BPMN notation. The study showed that the processes and activities of companies in this sector present common characteristics, thus facilitating the standardization of best practices. With the study of other cases will arise other similar aspects that could be used in the preparation of a reference model that provide specific guidance on how business processes can be managed in organizations of the subsector of edifications.
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Richards, James. "Developing a theoretical basis for the concept of organizational behaviour." Thesis, University of Stirling, 2006. http://hdl.handle.net/1893/185.

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Workplace misbehaviour is seen to be a neglected feature of organizational study (Ackroyd and Thompson; Vardi and Weitz, 2004). Where research has been undertaken into misbehaviour the emphasis tends fall into two broad categories. First of all, organizational behaviour theorists use the term misbehaviour as a means to highlight how the ‘negative’ behaviour of employees gets in the way of formal organizational goals. Secondly, radical sociologists tend to use the term misbehaviour as a means to critique Foucauldian labour process theory. Here an argument is made that suggests the disciplinary affects of new management practices associated with human resource management and total quality management have been overstated. Furthermore, radical sociologists also use the term misbehaviour as means to critique organizational behaviour accounts, which are believed to paint overly optimistic accounts of organizational life. However, on further examination it was discovered that neither a radical sociological approach, nor a traditional organizational behaviour approach, sufficiently addresses the current deficit in our understandings and explanations for workplace misbehaviour. Hence, one of the main themes of this thesis was to design a theoretical and methodological framework to address the deficit in our understandings and explanations. As such, a view was taken of how a radical sociological approach (orthodox labour process analysis) combined with an emerging social psychological perspective (a social identity approach (Haslam, 2001)) could help overcome previous theoretical problems associated with researching misbehaviour. Empirical support for this approach is provided by the detailed examination of the objective and subjective working conditions of four different sets of low status workers. The findings are based on longitudinal covert participant observations, as well as covert interviews and the covert gathering of company documents. The findings depart from previous insights into workplace misbehaviour in stressing the importance of acknowledging and investigating both the organizational and sub-group social identities of low status workers, in relation to such activities. As such, a great deal of the misbehaviour noted in the findings can be attributed to the poor treatment of low status workers by management, yet misbehaviour is equally if not more attributable to the empowering or inhibitive qualities of the many psychological groups that worker can associate with or disassociate themselves from. Recommendations are made about the direction of future research into workplace misbehaviour. There are many suggestions made and include examining misbehaviour in a wider range of settings, sectors and levels of organizations.
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Fien, Gert-Jan A. F. "Studies on process synthesis and process integration." Diss., This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-08032007-102242/.

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Andersson, Simon, and Christian Öström. "Tillit, styrning och service : En kvalitativ studie av Skatteverkets implementering av tillitsbaserad styrning." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-74339.

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Sedan 1980-talet har New Public Management (NPM) varit den dominerande styrfilosofin inom offentlig sektor i Sverige. NPM har framförallt varit förknippat med resultat- och målstyrning och har förväntats öka effektiviteten inom den offentliga sektorn. Idag genomförs en reform av styrningen inom den offentliga sektorn där det nya styrsättet går under benämningen tillitsbaserad styrning. Det syftar främst till att öka tilliten till professionerna och medborgarna. Denna studie utgör en kvalitativ fallstudie av Skatteverkets implementering av den tillitsbaserade styrningen och de utmaningar som uppkommer i samband med detta. Studien har genomförts på Skatteverkets kontor i Luleå, där chefer och medarbetare har djupintervjuats i två faser. En tematisk analys har använts för att analysera insamlade data och fyra huvudsakliga teman har identifierats; teambaserat arbetssätt, medarbetaransvar, kundperspektiv och prestationsutvärdering. Studiens huvudsakliga slutsatser är att Skatteverkets tolkning av tillitsbaserad styrning är ett teambaserat arbetssätt, som implementerats på ett i huvudsak decentraliserat sätt och med viss hjälp av Susan A Wheelans fyrstegsmodell. Vidare kan konkluderas att den största utmaningen är att anpassa prestationsutvärderingen efter det nya arbetssättet.
Since the 1980’s, the New Public Management (NPM) has been the dominating management control philosophy in the Swedish public sector organizations. NPM has predominantly been associated with management by objective and has been expected to increase efficiency within public sector organizations. Today the control system in Swedish public sector organizations is undergoing reform with a new system called trust-based control. The foremost purpose of this new control system is to increase trust within the professions and to the citizens. This study is a qualitative case study of the Swedish Tax Agency’s implementation of the trust-based control system and the challenges that this implementation entails. The study was conducted at the Swedish Tax Agency’s office in Luleå, where managers and employees were interviewed in two stages. A thematic analysis was applied to process the data, in which four main themes appeared; team-based mode of operation, employee responsibility, customer perspective and performance evaluation. The main conclusions of the study are that the Swedish Tax Agency’s interpretation of trust-based control is a team-based mode of operation. The implementation process has been primarily decentralized, with some aid from Susan A. Wheelan’s four-stage model. Furthermore, it is concluded that the foremost challenge with implementing trust-based control is to adjust the performance evaluation to fit the new mode of operation.
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Liu, Xiaolei. "Sample Size Calculations in Matched Case-Control Studies and Unmatched Case-Control Studies with Controls Contaminated." University of Cincinnati / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1221754897.

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Books on the topic "Process control case studies"

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Czitrom, Veronica. Statistical case studies for industrial process improvement. Philadelphia, Pa: Society for Industrial and Applied Mathematics, 1997.

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Practices, LLC Best. Lean, six sigma & TQM project success: Recent case studies and benchmarks. Chapel Hill, NC: Best Practices, LLC (6320 Quadrangle Dr., Ste. 200, Chapel Hill, 27514-7815), 2004.

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Bobbitt, Charles E. Supplier mold compound preform manufacturing process characterization. Reading, Mass: Addison-Wesley Pub., 1992.

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Finch, Byron J. Planning and control system design: Principles and cases for process manufacturers. Falls Church, Va: American Production and Inventory Control Society, 1987.

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Legislatures and the budget process: The myth of fiscal control. New York: Palgrave Macmillan, 2010.

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Burnham, John M. Just-in-time in a major process industry: Case studies of JIT implementation at ALCOA. Falls Church, Va: American Production and Inventory Control Society, 1986.

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Manufacturing solutions for consistent quality & reliability: The nine step problem-solving process. New York: American Management Association, 1995.

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Kennedy, W. G. Lessons learned in process control at the Halden Reactor Project. Washington, DC: Office of Nuclear Reactor Regulation ; Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1989.

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Kennedy, W. G. Lessons learned in process control at the Halden Reactor Project. Washington, DC: Office of Nuclear Reactor Regulation ; Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1989.

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Process improvement with electronic health records: A stepwise approach to workflow and process management. Boca Raton: CRC Press, 2012.

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Book chapters on the topic "Process control case studies"

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Rengaswamy, Raghunathan, Babji Srinivasan, and Nirav Pravinbhai Bhatt. "Case Studies." In Process Control Fundamentals, 307–20. First edition. | Boca Raton : CRC Press, 2020.: CRC Press, 2020. http://dx.doi.org/10.1201/9780367433437-11.

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Kocijan, Juš. "Case Studies." In Modelling and Control of Dynamic Systems Using Gaussian Process Models, 213–52. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-21021-6_6.

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Vrečko, Darko, and Nadja Hvala. "Model-Based Control of the Ammonia Nitrogen Removal Process in a Wastewater Treatment Plant." In Case Studies in Control, 127–53. London: Springer London, 2013. http://dx.doi.org/10.1007/978-1-4471-5176-0_5.

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Mary, X. Anitha, Lina Rose, and R. Jegan. "Case Studies of Smart Algorithm for Industrial Process Control." In Smart Techniques for a Smarter Planet, 281–304. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-03131-2_14.

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Hasson, Katie Ann. "Not a “Real” Period?: Social and Material Constructions of Menstruation." In The Palgrave Handbook of Critical Menstruation Studies, 763–85. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-0614-7_56.

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Abstract Hasson provides an examination of menstrual suppression technologies and the implications they have on understanding menstruation as both quintessentially natural and socially constructed, and even what ‘counts’ as menstruation. Taking the case of birth control pills, Hasson studies menstrual suppression by analyzing medical journal articles, FDA advisory committee transcripts, and website marketing. Across these contexts, she finds that new definitions of ‘menstruation’ converge on the distinction between bleeding that occurs when women are taking hormonal birth control and when they are not. Finally, Hasson draws attention to the concept of redefining a biological process that is deeply significant for gendered embodiment, as well as a challenge to consider both the social and material construction of gendered bodies.
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Sunan, Huang, Tan Kok Kiong, and Lee Tong Heng. "Case Studies." In Applied Predictive Control, 207–48. London: Springer London, 2002. http://dx.doi.org/10.1007/978-1-4471-3725-2_8.

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del Pilar Noriega E., Maria, and Chris Rauwendaal. "Case Studies." In Troubleshooting the Extrusion Process, 165–283. München: Carl Hanser Verlag GmbH & Co. KG, 2019. http://dx.doi.org/10.3139/9781569907764.004.

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Garces, Freddy, Victor M. Becerra, Chandrasekhar Kambhampati, and Kevin Warwick. "Case Studies." In Advances in Industrial Control, 135–60. London: Springer London, 2003. http://dx.doi.org/10.1007/978-1-4471-0065-2_7.

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Ariño, Ramon, Jordi Meseguer, Ramon Pérez, and Joseba Quevedo. "Case Studies." In Advances in Industrial Control, 21–33. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-50751-4_2.

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Kaufman, Howard, Itzhak Barkana, and Kenneth Sobel. "Case Studies." In Direct Adaptive Control Algorithms, 345–407. New York, NY: Springer New York, 1998. http://dx.doi.org/10.1007/978-1-4612-0657-6_7.

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Conference papers on the topic "Process control case studies"

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DeJesus, Stephen T., Basil A. Desousa, Sameer Londhe, and Qian Wang. "FT-NIR spectroscopy for process control: recent case studies." In Photonics East '99, edited by Robert J. Nordstrom and Wim A. de Groot. SPIE, 1999. http://dx.doi.org/10.1117/12.372941.

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Shahriari, Kyarash, and Feng Ding. "Process variability and inherent efficiency enhancement in industrial processes: Two case studies in pulp and paper industry." In Control (MSC). IEEE, 2011. http://dx.doi.org/10.1109/cca.2011.6044512.

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Mondal, S. C. "Process Capability — A Surrogate Measure of Process Robustness: A Case Study." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-12418.

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A robust process is insensitive to the effect of noise variables. Noise variables are the main source for producing variation. Noise variables are included in the outer array in robust design experiment for enhancing robustness. The approach of robust design is to make the process robust (insensitive) to variation due to noise variables. The effect of noise factors can be modelled in a response surface model which helps to determine the settings of the design factors that neutralize the effects of the noise factors and improve robustness. In experimental design the noise factors are assumed fixed value whereas in real world manufacturing noise factors vary randomly. Again for a large scale manufacturing, it is extremely difficult to study robustness using experimentation as there are chances of stoppage of production. In such a situation a simulation-based model can be developed using industrial data to study robustness of a real manufacturing process. This paper proposed a method (a combination of simulation, regression modelling and robust design technique) to study robustness of a hardening and tempering process producing component worm shaft used in the steam power plant. The process capability indices (both univariate and multivariate) are determined based on the model responses. The variation of process performance (process capability values) due to random noise variation is studied using a general purpose process control chart (R-chart). The results show that noise factors in hardening and tempering process are insensitive to manufacturing variation and process capability indices act as a surrogate measure of process robustness.
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Kedar, Amir, Sander Sein, Naida Ademović, Panagiotis Panetsos, Pavel Ryjáček, Amos Duke, and José C. Matos. "Developing case studies for implementing COST TU1406 Quality Control plan procedure for typical highway bridges." In IABSE Symposium, Guimarães 2019: Towards a Resilient Built Environment Risk and Asset Management. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/guimaraes.2019.0531.

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<p>An extensive work was done by COST TU1406 working groups (WG) 1,2 and 3 for preparing a guidance document for Quality Control Plan (QCP) of road bridges. WG 1, 2 and 3 reports named 'Performance Indicators for Roadway Bridges', 'Performance Goals for Roadway Bridges' and 'Establishment of a quality control plan' are already published. Based on these documents and the work done to-date, a new procedure for implementing the developed guidelines for the preparation of QCP for roadway bridges was developed by WG4 members in order to unify the method used and to validate the outcomes of the developed QCP. At the first stage, a set of common highway bridge prototypes were identified including girder, frame, arch and truss bridges. A database was created where each participating country has identified local bridges for developing of the case studies. Nine out of sixty bridges where selected for the first stage of preparing an example of QCP and the case study reports were compared with an objective to validate the outcomes. A guideline document was prepared with unified instruction on how to develop the national case study per country. The typical case study includes few stages which are defined based on the work done by WG1, 2 and</p><p>3. The stages includes data collection, element identification and grouping, defining vulnerable zones, damage processes and failure modes, selecting and evaluating performance indicators (PIs) and calculating key performance indicators (KPIs), establishing demands, creating QCP scenarios and comparing them by spider diagrams. First outcomes of the prototypes case study reports are now being updated to reflect the final version of WG3 report and together with the guidelines document will be distributed among participating countries to enable the benchmarking process for the full set of bridges representing Europe common highway bridge topologies.</p>
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Howard, Thomas, Steve Culley, and Elies Dekoninck. "Creative Stimulation in Conceptual Design: An Analysis of Industrial Case Studies." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49672.

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When retrospectively analyzing the design process of a creative product, the creative leap or moment of inspiration is often described by the designer in an ‘idealized way’ [1]. There is little evidence within literature describing when the ideas behind promising concepts were conceived. This study tracks several real industrial design projects in the early conceptual design phase. The development and manipulation of ideas captured during the initial group brainstorm meeting are assessed in terms of the concepts at the following stage gate meeting. In addition, several different forms of stimulus were introduced to the different groups and compared to a control group. The results showed that the frequency of idea production remained virtually constant for the first 60 minutes. However, the number of ideas to form part of a concept at the stage gate meeting dropped markedly after the first 20 minutes. The frequency of appropriate ideas featuring within stage gate concepts increased with the introduction of stimuli, highlighting the positive effect of introducing stimuli.
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Srinivasan, Prashant, Sanketh Bhat, Manthram Sivasubramaniam, Ravi Methekar, Maruthi Devarakonda, and Chandan Kumar. "Model Based Design and Optimization for Large Bore Engines: Some Industrial Case Studies." In ASME 2017 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icef2017-3554.

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Large bore reciprocating internal combustion engines are used in a wide variety of applications such as power generation, transportation, gas compression, mechanical drives, and mining. Each application has its own unique requirements that influence the engine design & control strategy. The system architecture & control strategy play a key role in meeting the requirements. Traditionally, control design has come in at a later stage of the development process, when the system design is almost frozen. Furthermore, transient performance requirements have not always been considered adequately at early design stages for large engines, thus limiting achievable controller performance. With rapid advances in engine modeling capability, it has now become possible to accurately simulate engine behavior in steady-states and transients. In this paper, we propose an integrated model-based approach to system design & control of reciprocating engines and outline ideas, processes and real-world case studies for the same. Key benefits of this approach include optimized engine performance in terms of efficiency, transient response, emissions, system and cost optimization, tools to evaluate various concepts before engine build thus leading to significant reduction in development time & cost.
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Jenkins, Hodge E., and Mark L. Nagurka. "Capstan Design and Control for Drawing Optical Fiber: A Case Study in Mechatronics Design." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-41105.

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This paper presents a case study on the design of a draw capstan drive with feedback control for use in optical fiber manufacturing. Optical fiber is manufactured by the draw process, which involves heating and pulling high purity glass cylinders to diameters of 125 micron. Of critical concern is producing a constant diameter for the glass fiber and its lightguide core. The diameter of the optical fiber must remain constant to create a product capable of transmitting high-bandwidth optical data. The optical fiber draw capstan design has a significant impact on the resulting fiber quality. As the draw speed is used to control the fiber diameter, the ability of the draw capstan to follow velocity commands directly affects the resulting fiber diameter. In this case study a systems approach is used for the design of the mechanical and control aspects through parametric evaluations and modeling, as well as simulation studies of the capstan drive. Disturbances in the draw process arise from sources such as the variation in the diameter of the input glass cylinder and the draw tension control, affecting the glass temperature and viscosity. Simulation studies demonstrate that speed regulation, to manufacture optical fiber within allowable diameter tolerances, is achievable in the presence of representative disturbances. The capstan model and design along with the fiberdrawing process model presented in this case study are suitable for undergraduate and graduate courses in system dynamics, control, and mechatronics. As is typical of many problems in manufacturing processes, the problem discussed is multidisciplinary. The study highlights the use of mechanical and electrical modeling, system identification, and control design as necessary parts of product and process improvement.
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Preve´y, Paul S., Ravi A. Ravindranath, Michael Shepard, and Timothy Gabb. "Case Studies of Fatigue Life Improvement Using Low Plasticity Burnishing in Gas Turbine Engine Applications." In ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/gt2003-38922.

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Surface enhancement technologies such as shot peening, laser shock peening (LSP), and low plasticity burnishing (LPB) can provide substantial fatigue life improvement. However, to be effective, the compressive residual stresses that increase fatigue strength must be retained in service. For successful integration into turbine design, the process must be affordable and compatible with the manufacturing environment. LPB provides thermally stable compression of comparable magnitude and even greater depth than other methods, and can be performed in conventional machine shop environments on CNC machine tools. LPB provides a means to extend the fatigue lives of both new and legacy aircraft engines and ground-based turbines. Improving fatigue performance by introducing deep stable layers of compressive residual stress avoids the generally cost prohibitive alternative of modifying either material or design. The x-ray diffraction based background studies of thermal and mechanical stability of surface enhancement techniques are briefly reviewed, demonstrating the importance of minimizing cold work. The LPB process, tooling, and control systems are described. An overview of current research programs conducted for engine OEMs and the military to apply LPB to a variety of engine and aging aircraft components are presented. Fatigue performance and residual stress data developed to date for several case studies are presented including: • The effect of LPB on the fatigue performance of the nickel based super alloy IN718, showing the fatigue benefit of thermal stability at engine temperatures. • An order of magnitude improvement in damage tolerance of LPB processed Ti-6-4 fan blade leading edges. • Elimination of the fretting fatigue debit for Ti-6-4 with prior LPB. • Corrosion fatigue mitigation with LPB in Carpenter 450 steel. • Damage tolerance improvement in 17-4PH steel. Where appropriate, the performance of LPB is compared to conventional shot peening after exposure to engine operating temperatures.
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Grigoriev, Gleb, Vladimir Gulin, Alexei Nikitin, Nikita Sivoy, Eugene Bondarev, Marat Islamuratov, Oksana Zakharova, Igor Karpov, Evgenii Liubimov, and Vladislav Votsalevskiy. "Integrated Droneborne Geophysics Application as a Tool for Exploration Optimization. Case Studies." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206250-ms.

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Abstract Unmanned aerial vehicles (UAV) have a great potential for geological exploration optimization at all stages. This study considers UAV implementation at different exploration stage. Integrated approach using unmanned aerial systems shows great effectiveness based on the completed surveys. Low-depth electrical exploration using the shallow electrical exploration method is one of the possible UAVs technologies with great potential. In this study there are several cases describing main field data acquisition, models and cross-sections processing. Unmanned aerial systems are applicable at all stages of the oil and gas value chain and are already an integral part of oil&gas production process. Now there are more than 70 unmanned aerial systems application scenarios. The main advantages of drones are that the use of this operational data collection tool allows: – to reduce the duration of collecting geospatial data by 70%, and the cost by 3 times; – make the best decisions quickly; – to realize additional potential for increasing efficiency (application at all stages of the production chain) – increase the production processes safety level The most promising and actively developing areas of technology application are: Geophysical surveys at different stages of geological exploration. Drones have great potential for application in non-seismic exploration methods in the early stages of geological exploration. In addition, UAV surveys are suitable for planning geological exploration and working out the conceptual arrangement of the terrain. The presence of an accurate digital elevation model at the start of work of the project team makes it possible to remove a number of uncertainties and questions about conducting field work on seismic exploration, the placement of infrastructure and corridor communications. Objective control of the capital construction progress. Another important area of drones application is aerial photography at all stages of capital construction. With the help of UAVs, it is possible to control such parameters as the status and quality of construction and installation works, equipment of contractors, compliance with safety and environmental standards, and others. To do this, the unmanned vehicle flies around the object with a given regularity, filming it from different angles. After aerial photography, special software stitches the results into photogrammetric products (digital terrain model, orthophotomaps, 3D models) with an accuracy of 4–6 centimeters. On the constructed models, you can calculate the dynamics by one or another parameter. Operational fieldwork and intrastructure monitoring. At the same time, one of the key goals of technology application is the creation of a network of autonomous stations with drones at all assets for remote control of the company's production processes. The first step in this direction was the joint pilot testing of an automated take-off and landing station with an unmanned aerial vehicle of a multi-rotor type. The use of the station will reduce the time and cost of collecting data on capital construction and infrastructure. Project teams will be able to react faster to changes. An automated take-off and landing station allows the use of unmanned aerial vehicles without human intervention. The drone can independently take off, perform the necessary operations, land and recharge. Thus, flight operations and data collection can be performed remotely without the constant presence of a specialist on site.
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Zhang, Liang, Jin Wen, and Yimin Chen. "Systematic Feature Selection Process Applied in Short-Term Data-Driven Building Energy Forecasting Models: A Case Study of a Campus Building." In ASME 2017 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/dscc2017-5073.

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An accurate building energy forecasting model is a key component for real-time and advanced control of building energy system and building-to-grid integration. With the fast deployment and advancement of building automation systems, data are collected by hundreds and sometimes thousands of sensors every few minutes in buildings, which provide great potential for data-driven building energy forecasting. To develop building energy forecasting models from a large number of potential inputs, feature selection is a critical procedure to ensure model accuracy and computation efficiency. Though the theory of feature selection is well developed in statistics and machine learning fields, it is not well studied in the application of building energy modeling. In this paper, a feature selection framework proposed in an earlier study is examined using a real campus building in Philadelphia. This feature selection framework combines domain knowledge and statistical methods and is developed for short-term data-driven building energy forecasting. In this case study, the feasibilities of using this feature selection framework in developing whole building energy forecasting model and chiller energy forecasting model are studied. Results show that, for both whole building and chiller energy forecasting applications, the model with systematic feature selection process presents better performance (in terms of cross validation error of forecasted output) than other models including that with conventional inputs and that uses only single feature selection technique.
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Reports on the topic "Process control case studies"

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Lee, Sokbae (Simon), and Sung Jae Jun. Causal inference in case-control studies. The IFS, May 2020. http://dx.doi.org/10.1920/wp.cem.2020.1920.

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Paulish, Daniel J. Case Studies of Software Process Improvement Methods. Fort Belvoir, VA: Defense Technical Information Center, December 1993. http://dx.doi.org/10.21236/ada277289.

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Brogan, Donna J. Methodology for Case-Control Studies of Breast Cancer. Fort Belvoir, VA: Defense Technical Information Center, October 1996. http://dx.doi.org/10.21236/ada333387.

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Danaei, Goodarz, Bahareh Rasouli, Jessica Chubak, James S. Floyd, Bruce M. Psaty, Matthew Nguyen, Rod Walker, et al. Developing New Methods for Comparing Treatments in Case-Control Studies. Patient-Centered Outcomes Research Institute (PCORI), July 2021. http://dx.doi.org/10.25302/07.2021.me.160936748.

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Sevier, III, and Noble H. Command, Control and Leadership: A Historical Perspective Employing Two Case Studies. Fort Belvoir, VA: Defense Technical Information Center, March 1988. http://dx.doi.org/10.21236/ada195585.

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Abadie, Alberto, Alexis Diamond, and Jens Hainmueller. Synthetic Control Methods for Comparative Case Studies: Estimating the Effect of California's Tobacco Control Program. Cambridge, MA: National Bureau of Economic Research, January 2007. http://dx.doi.org/10.3386/t0335.

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Abadie, Alberto, Alexis Diamond, and Jens Hainmueller. Synthetic Control Methods for Comparative Case Studies: Estimating the Effect of California's Tobacco Control Program. Cambridge, MA: National Bureau of Economic Research, January 2007. http://dx.doi.org/10.3386/w12831.

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Bengoa, Nerea Vadillo, Carmen Marta Lazo, and Daniel Cabrera Altieri. Adaptation process of Communication studies to EHEA. The case of Aragón, a pioneering region. Revista Latina de Comunicación Social, 2010. http://dx.doi.org/10.4185/rlcs-65-2010-892-187-203-en.

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Al-Qadi, Imad, José Rivera-Perez, Watheq Sayeh, Javier García Mainieri, Hadi Meidani, John Huang, Hasan Ozer, and Adam Hand. Case Studies Using Quality Control for Performance and Pay for Performance Specifications: Field Observations. Illinois Center for Transportation, June 2020. http://dx.doi.org/10.36501/0197-9191/20-007.

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Zhao, Junyu, Qianping Zhang, Yupeng Yang, Jinming Yao, Lin Liao, and Jianjun Dong. High Prevalence of Thyroid Carcinoma in Patients with Insulin Resistance: A Meta-analysis of Case-control Studies. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, August 2021. http://dx.doi.org/10.37766/inplasy2021.8.0043.

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