Literatura académica sobre el tema "Control variables"
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Artículos de revistas sobre el tema "Control variables"
Arnold, Paul N. "Control of Study Variables". Journal of Cataract & Refractive Surgery 20, n.º 6 (noviembre de 1994): 676. http://dx.doi.org/10.1016/s0886-3350(13)80674-8.
Texto completoMasket, Samuel. "Control of Study Variables". Journal of Cataract & Refractive Surgery 20, n.º 6 (noviembre de 1994): 676. http://dx.doi.org/10.1016/s0886-3350(13)80675-x.
Texto completoHatsopoulos, Nicholas G. y William H. Warren. "Do control variables exist?" Behavioral and Brain Sciences 18, n.º 4 (diciembre de 1995): 762. http://dx.doi.org/10.1017/s0140525x00040851.
Texto completoAlbertos, P., F. Morant, J. Picó y J. Simó. "Adaptive Control Under Partially Measured Control Variables". IFAC Proceedings Volumes 25, n.º 8 (junio de 1992): 502–8. http://dx.doi.org/10.1016/s1474-6670(17)54103-8.
Texto completoShore, Haim. "General control charts for variables". International Journal of Production Research 38, n.º 8 (mayo de 2000): 1875–97. http://dx.doi.org/10.1080/002075400188645.
Texto completoShore, H. "General control charts for variables". International Journal of Production Research 39, n.º 9 (enero de 2001): 2063–64. http://dx.doi.org/10.1080/00207540110028137.
Texto completoKnudsen, Finn B. "Fermentation Variables and Their Control". Journal of the American Society of Brewing Chemists 43, n.º 2 (abril de 1985): 91–95. http://dx.doi.org/10.1094/asbcj-43-0091.
Texto completoKlarmann, Martin y Sven Feurer. "Control Variables in Marketing Research". Marketing ZFP 40, n.º 2 (2018): 26–40. http://dx.doi.org/10.15358/0344-1369-2018-2-26.
Texto completoGarcía-Bustos, Sandra, Mónica Mite y Francisco Vera. "Control Charts with Variable Dimension for Linear Combination of Poisson Variables". Quality and Reliability Engineering International 32, n.º 5 (25 de noviembre de 2015): 1741–55. http://dx.doi.org/10.1002/qre.1910.
Texto completoCembrero, J., M. Perales, M. Mollar y B. Marí. "Obtención de columnas de ZnO. Variables a controlar (I)". Boletín de la Sociedad Española de Cerámica y Vidrio 42, n.º 6 (30 de diciembre de 2003): 379–87. http://dx.doi.org/10.3989/cyv.2003.v42.i6.626.
Texto completoTesis sobre el tema "Control variables"
Böhm, Walter y Peter Hackl. "CUSUM Chart for Correlated Control Variables". Department of Statistics and Mathematics, WU Vienna University of Economics and Business, 1991. http://epub.wu.ac.at/76/1/document.pdf.
Texto completoSeries: Forschungsberichte / Institut für Statistik
Nandong, Jobrun. "Modelling and control strategies for extractive alcoholic fermentation: partial control approach". Thesis, Curtin University, 2010. http://hdl.handle.net/20.500.11937/2197.
Texto completoClerget, Charles-Henri. "Contributions au contrôle et à l'optimisation dynamique de systèmes à retards variables". Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLEM053/document.
Texto completoThis Ph.D. work studied the control and optimization of dynamical systems subject to varying time delays.State and control time delays are a well-known problem in control theory, with a potential to decrease performances during transient regimes, or even to jeopardize controllers closed-loop stability. Such variable delays play a key role in many applications in process industries.In a first part, we studied the closed-loop control of a system subject to varying and uncertain metrology delays. We established new results on robust stability under explicit conditions on the controller gain. In a second part, we tackled the problem of the dynamic optimization of systems exhibiting input dependent delays due to transport phenomena in complex hydraulic architectures. We designed an iterative optimization algorithm and guaranteed its convergence through a detailed analysis
Huang, Yi. "CONTROL OF METAL TRANSFER AT GIVEN ARC VARIABLES". UKnowledge, 2011. http://uknowledge.uky.edu/ece_etds/4.
Texto completoWise, Marshall Alan. "Simultaneous process control of several independent quality variables". Thesis, Virginia Tech, 1990. http://hdl.handle.net/10919/41532.
Texto completoMaster of Science
García, Bustos Sandra Lorena. "Control Multivariante Estadístico de Variables Discretas tipo Poisson". Doctoral thesis, Universitat Politècnica de València, 2014. http://hdl.handle.net/10251/40592.
Texto completoGarcía Bustos, SL. (2014). Control Multivariante Estadístico de Variables Discretas tipo Poisson [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/40592
TESIS
Keating, Katrina Ann. "Noncognitive Variables for Placement| A Randomized Control Trial". Thesis, San Francisco State University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10822840.
Texto completoThis study was born out of a concern that U.S. community colleges were currently using or considering using noncognitive variables for academic placement without an understanding of how students would react to these scales in a high-stakes setting. While the use of noncognitive variables for placement often stems from a desire to overcome the myriad of limitations of content-based placement tests, the researcher was concerned that noncognitive variables had the potential to become an extension of the problems caused by the test.
This study was guided by two research questions: How does the high-stakes nature of academic placement impact student responses on noncognitive scales? How does the context, demand, characteristics, and framing of the noncognitive variables impact stereotype threat, if at all? The researcher performed a random control trial of incoming community college students to determine how they might react to questions about noncognitive variables. One group was told their responses would be used for placement, and the other was told that their responses would be used to improve instruction.
The major findings suggest that initial framing played a role in participant responses and lowered responses on some noncognitive variables, but that the act of having taken a placement test was also a moderator of student behavior and whether or not students believed the initial framing. Stereotype threat susceptibility appeared to have a statistically significant relationship with some participants’ responses on some noncognitive scales, and there was evidence that initial framing was not related. Finally, while participants were generally honest, those who did change their answers did so in a manner that was inconsistent, more so when given high stakes framing.
MARANHAO, PAULO HENRIQUE COELHO. "CONTROL CHARTS ON TRANSFORMED VARIABLES FOR MONITORING MULTIVARIATE PROCESS". PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2012. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=21881@1.
Texto completoA maioria dos trabalhos que propõem esquemas de Controle Estatístico de Processos Multivariados (CEPM) e que analisam o desempenho desses esquemas considera alterações nas variáveis observadas. Alguns autores mostraram que, quando alterações no vetor de médias de um processo multivariado ocorrem tipicamente em direções previsíveis, a estatística mais eficaz para o monitoramento do processo é o valor da projeção do vetor de observações (ou de sua média amostral) em cada uma dessas direções. Este trabalho propõe um método para o monitoramento de processos multivariados nos quais alterações nos parâmetros do processo são devidas a causas especiais que afetam variáveis não observáveis e ocorrem em direções conhecidas (ortogonais), e compara seu desempenho com o de gráficos de Shewhart nas variáveis observadas, nas componentes principais, e com o de gráficos de T2 no vetor de variáveis observadas. Além disso, é proposto um esquema complementar de monitoramento para detectar alterações em novas direções fora do hiperplano formado pelas direções conhecidas. Resultados obtidos por simulação mostram que o esquema proposto, de gráficos de controle em variáveis transformadas (projeções do vetor de variáveis observadas nas direções conhecidas), tem melhor desempenho na maior parte dos casos analisados. A análise de desempenho é feita supondo deslocamentos da média nas direções conhecidas (já que estes é que são as alterações conhecidas, ocasionadas pelas causas especiais) e/ou aumentos da variância nessas mesmas direções. A comparação é baseada nas probabilidades de alarme falso e de alarme verdadeiro.
Most of the works that propose schemes of Multivariate Statistical Process Control (MSPC) and that analyze the performance of these schemes consider changes in the observed variables. Previous authors have shown that when the shifts in the mean vector of a multivariate process typically occur in predictable directions, the most effective statistics for process monitoring are the values of the projections of the vector of observations (or of the sample average vector) in each of these directions. This paper proposes a method for the monitoring of multivariate processes in which changes in the process parameters are due to special causes that affect non-observable variables and occur in (orthogonal) known directions, and compares its performance with that of Shewharts charts on the observed variables, on the principal components, and with that of T2 charts on the vector of observed variables. In addition, it is proposed a supplementary scheme of monitoring to detect changes in new directions outside of the hyperplane formed by known directions. Results obtained by simulation show that the proposed scheme, consisting of control charts on the transformed variables (projections of the vector of observed variables on the known directions), has better performance in most of the cases analyzed. The analysis of performance is done assuming shifts in the mean of the known directions (since these are the known changes associated to special causes) and/or increases of the variance in these same directions. The comparisons are based on the in-control and out-of-control probabilities of signal.
Crisóstomo, Tiago Miguel Jacinto. "Firm performance and corporate governance variables - United Kingdom". Master's thesis, Instituto Superior de Economia e Gestão, 2013. http://hdl.handle.net/10400.5/11064.
Texto completoA temática do corporate governance remonta ao século XVIII. Apesar disso, só depois da crise financeira da década de 2000 que afectaram todo o sistema e das graves falências empresariais, o tema voltou à ribalta. Este estudo revisita de forma abrangente a evolução das várias teorias da empresa à luz do desenvolvimento do corporate governance como ciência fundamental para promover e desenvolver a performance no meio empresarial. Para tal, foi analisado o efeito que as variáveis de corporate governance têm na performance das empresas do Reino Unido no período de 2005-2012. Foram considerados cinco mecanismos de controlo empresarial: controlo efectuado aos directores, controlo através da estrutura accionista, controlo interno efectuado pelos "Committees", atribuição do cargo de CEO e Chairman a pessoas distintas e controlo através de remuneração baseada na performance. A estrutura accionista, aliada à atribuição do cargo de CEO e Chairman a pessoas distintas e o controlo através da remuneração baseada na performance, revelaram-se os mecanismos mais significativos na resolução da equação performance governance. Finalmente, e baseado na revisão de literatura e nos resultados obtidos, é possível afirmar que o corporate governance é um processo dinâmico no qual todos os intervenientes devem ser tidos em conta na prossecução do objectivo comum desenvolver um modelo de governance que seja sustentável e benéfico para a sociedade.
The theme of corporate governance dates back to the eighteenth century. Nevertheless, only after the financial crisis in 2000's decade that affected the entire system and the devastating corporate failures, the subject returned to the spotlight. This study revisits in a comprehensive way the evolution of the different theories of the firm in light of the development of corporate governance, as a fundamental science to promote and develop the corporate performance. To this purpose, we examined the effect that corporate governance variables have on the performance of companies in the UK for the period 2005-2012. We considered five mechanisms of corporate control: Board of directors, equity ownership structure, internal control performed by the Board Committees, separation of CEO and Chairman roles, and control through the variable remuneration. Board ownership, together with the separation of CEO and Chairman roles and control through the performance variable remuneration, proved to be the most significant mechanisms in the resolution of the equation performance - governance. Finally, and based on the literature review and the results obtained, it can be stated that corporate governance is a dynamic process in which the different stakeholders should be taken into account in order to achieve a common goal - develop a governance model that is sustainable and beneficial to society.
Hanson, Robert Alexander. "The application of a single control chart for dependent variables in multivariate quality control". Thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-05022009-040726/.
Texto completoLibros sobre el tema "Control variables"
M, DeRusso Paul y DeRusso Paul M, eds. State variables for engineers. 2a ed. New York: Wiley, 1998.
Buscar texto completoDeRusso, Paul M. State variables for engineers. Malabar, Fla: Krieger, 1990.
Buscar texto completoLin, Chaung. Self-tuning of design variables for generalized predictive control. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 2000.
Buscar texto completoTagaras, George. Economic acceptance sampling by variables with quadratic quality costs. Fontainebleau: INSEAD, 1992.
Buscar texto completoHeckman, James J. Using matching, instrumental variables and control functions to estimate economic choice models. Cambridge, MA: National Bureau of Economic Research, 2003.
Buscar texto completoFrölich, Markus. A note on parametric and nonparametric regression in the presence of endogenous control variables. Bonn, Germany: IZA, 2006.
Buscar texto completoMburano, Rwenge. Determinants de la fécondité des mariages selon le milieu d'habitat au Benin: Examen par les variables intermédiaires. [Yaoundé, Cameroon]: Institut de formation et de recherche démographiques, 1994.
Buscar texto completoSingh, M. Effect of processing variables on the microstructure and mechanical properties of microporous carbon materials. [Washington, DC: National Aeronautics and Space Administration, 1996.
Buscar texto completoKim, Kyoo il. Revisiting instrumental variables and the classic control function approach, with implications for parametric and non-parametric regressions. Cambridge, MA: National Bureau of Economic Research, 2011.
Buscar texto completoRumrrill, Róger. Narcotráfico y violencia política en la Amazonía Peruana: Dos nuevas variables en la vieja historia de la selva alta y baja del Perú. [Lima?: s.n., 1986.
Buscar texto completoCapítulos de libros sobre el tema "Control variables"
Sjoblom, Cecilia y Georgios Liperis. "Control of Variables". En In Vitro Fertilization, 57–68. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-43011-9_7.
Texto completoAmsden, Davida M., Howard E. Butler y Robert T. Amsden. "Variables Control Charts". En SPC Simplified for Services, 99–136. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3070-7_5.
Texto completoWetherill, G. Barrie y Don W. Brown. "Inspection by variables". En Statistical Process Control, 269–90. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4899-2949-5_12.
Texto completoOakland, John y Robert Oakland. "Process control using variables". En Statistical Process Control, 105–48. 7a ed. 7th edition. | Abingdon, Oxon ; New York, NY : Routledge, 2019.: Routledge, 2018. http://dx.doi.org/10.4324/9781315160511-6.
Texto completoOakland, John y Robert Oakland. "Variables and process variation". En Statistical Process Control, 84–102. 7a ed. 7th edition. | Abingdon, Oxon ; New York, NY : Routledge, 2019.: Routledge, 2018. http://dx.doi.org/10.4324/9781315160511-5.
Texto completovon Collani, Elart. "Control Charts for Variables". En Teubner Skripten zur Mathematischen Stochastik, 41–67. Wiesbaden: Vieweg+Teubner Verlag, 1989. http://dx.doi.org/10.1007/978-3-322-94763-5_4.
Texto completoOwen, Mal. "Control charts for variables". En SPC and Continuous Improvement, 99–126. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-662-22419-9_6.
Texto completoHernández-Guzmán, Victor Manuel y Ramón Silva-Ortigoza. "The State Variables Approach". En Automatic Control with Experiments, 445–509. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-75804-6_7.
Texto completoD’Ambrosio, Bruce. "Fuzzy Logic Control". En Qualitative Process Theory Using Linguistic Variables, 5–15. New York, NY: Springer New York, 1989. http://dx.doi.org/10.1007/978-1-4613-9671-0_2.
Texto completoLópez, César Pérez. "Variables, Numbers, Operators and Functions". En MATLAB Control Systems Engineering, 23–75. Berkeley, CA: Apress, 2014. http://dx.doi.org/10.1007/978-1-4842-0289-0_2.
Texto completoActas de conferencias sobre el tema "Control variables"
Lewis, Peter A. W., Richard Ressler y R. Kevin Wood. "Smarter control variables". En the 19th conference. New York, New York, USA: ACM Press, 1987. http://dx.doi.org/10.1145/318371.318601.
Texto completoDorf, Richard C., Thomas R. Kurfess y Mark L. Nagurka. "Exploring Control Design Variables". En 1993 American Control Conference. IEEE, 1993. http://dx.doi.org/10.23919/acc.1993.4793465.
Texto completoWillems, Jan C. "Interconnection by sharing variables". En European Control Conference 2007 (ECC). IEEE, 2007. http://dx.doi.org/10.23919/ecc.2007.7068277.
Texto completoAlbrecht, R. F. "Topologized variables and controls". En 2001 European Control Conference (ECC). IEEE, 2001. http://dx.doi.org/10.23919/ecc.2001.7076294.
Texto completoSoderstrom, Torsten. "Errors-in-variables identification using a Generalized Instrumental Variable Estimation method". En 2010 49th IEEE Conference on Decision and Control (CDC). IEEE, 2010. http://dx.doi.org/10.1109/cdc.2010.5717579.
Texto completoBoeira, Emerson C. y Diego Eckhard. "An optimal regularized instrumental variable method for errors-in-variables identification". En 2021 60th IEEE Conference on Decision and Control (CDC). IEEE, 2021. http://dx.doi.org/10.1109/cdc45484.2021.9683683.
Texto completoJain, Neera y Andrew G. Alleyne. "Thermodynamics-Based Optimization and Control of Vapor-Compression Cycle Operation: Control Synthesis". En ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control. ASMEDC, 2011. http://dx.doi.org/10.1115/dscc2011-6088.
Texto completoVera, Matias, Roman Osorio-Comparan, Antonio Rienzo, Manuel Duarte-Mermoud y Gaston Lefranc. "Variables control of a modular greenhouse". En 2017 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON). IEEE, 2017. http://dx.doi.org/10.1109/chilecon.2017.8229636.
Texto completoChen, Han-fu. "Recursive Identification of Errors-in-Variables Systems". En 2006 Chinese Control Conference. IEEE, 2006. http://dx.doi.org/10.1109/chicc.2006.280993.
Texto completoMacCluer, C. R. y Yossi Chait. "Choosing An Inner Product That Separates Variables". En 1989 American Control Conference. IEEE, 1989. http://dx.doi.org/10.23919/acc.1989.4790297.
Texto completoInformes sobre el tema "Control variables"
Stouli, Sami y Whitney K. Newey. Control variables, discrete instruments, and identification of structural functions. The IFS, septiembre de 2018. http://dx.doi.org/10.1920/wp.cem.2018.5518.
Texto completoSeginer, Ido, James Jones, Per-Olof Gutman y Eduardo Vallejos. Optimal Environmental Control for Indeterminate Greenhouse Crops. United States Department of Agriculture, agosto de 1997. http://dx.doi.org/10.32747/1997.7613034.bard.
Texto completoKim, Kyoo il y Amil Petrin. A New Control Function Approach for Non-Parametric Regressions with Endogenous Variables. Cambridge, MA: National Bureau of Economic Research, enero de 2011. http://dx.doi.org/10.3386/w16679.
Texto completoHeckman, James y Salvador Navarro-Lozano. Using Matching, Instrumental Variables and Control Functions to Estimate Economic Choice Models. Cambridge, MA: National Bureau of Economic Research, febrero de 2003. http://dx.doi.org/10.3386/w9497.
Texto completoRegalbuto, M. C., B. Misra, D. B. Chamberlain, R. A. Leonard y G. F. Vandegrift. The monitoring and control of TRUEX processes. Volume 1, The use of sensitivity analysis to determine key process variables and their control bounds. Office of Scientific and Technical Information (OSTI), abril de 1992. http://dx.doi.org/10.2172/10177602.
Texto completoFuchs, Marcel, Ishaiah Segal, Ehude Dayan y K. Jordan. Improving Greenhouse Microclimate Control with the Help of Plant Temperature Measurements. United States Department of Agriculture, mayo de 1995. http://dx.doi.org/10.32747/1995.7604930.bard.
Texto completoCarrillo-Maldonado, Paul, Karla Arias, Wladimir Zanoni, Zoe Cruz y Sebastián Ruiz. Local Socieconomic Impacts of Large-scale Mining Projects in Ecuador: The Case of Fruta del Norte. Inter-American Development Bank, enero de 2023. http://dx.doi.org/10.18235/0004693.
Texto completoRuosteenoja, Kimmo. Applicability of CMIP6 models for building climate projections for northern Europe. Finnish Meteorological Institute, septiembre de 2021. http://dx.doi.org/10.35614/isbn.9789523361416.
Texto completoJohnson, K. E. Adaptive Torque Control of Variable Speed Wind Turbines. Office of Scientific and Technical Information (OSTI), agosto de 2004. http://dx.doi.org/10.2172/15008864.
Texto completoKrishnaprasad, P. S. y Dimitris P. Tsakiris. Nonholonomic Variable Geometry Truss Assemblies. 1. Motion Control. Fort Belvoir, VA: Defense Technical Information Center, enero de 1993. http://dx.doi.org/10.21236/ada453147.
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