Relevant bibliographies by topics / MPD Model

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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 'MPD Model'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "MPD Model"

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Kumar, S. Vijai, and S. Thanigaiarasu. "A new mathematical model for studying fully ionized plasma flows in MPD thrusters." International Journal of Modeling, Simulation, and Scientific Computing 07, no. 03 (August 23, 2016): 1650014. http://dx.doi.org/10.1142/s1793962316500148.

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The paper describes a novel mathematical model to study the physics of fully ionized plasma flow through MPD thrusters otherwise known as magnetoplasmadynamic thrusters. The developed model consists of a set of differential equations obtained by coupling the Navier–Stokes equations with Maxwell’s equations. The model developed was tested for various 1D and 1.5D cases. These simulations have been carried out for a special case of geometries called Tikhonov fitted geometries for alleviating the instability phenomenon commonly known as onset phenomenon in self-field MPD thrusters. The work was also extended to applied field MPD thrusters. A new equation for magnetic field was introduced to incorporate a virtual cathode. All the computations were carried out using a higher order integration scheme. The results obtained were found to be in good agreement with the previous work done on similar models.
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Xuefei, Xu, and Liao Guisheng. "MPD model for radar echo signal of hypersonic targets." Journal of Engineering 2014, no. 8 (August 1, 2014): 399–406. http://dx.doi.org/10.1049/joe.2014.0097.

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Albertoni, R., F. Paganucci, and M. Andrenucci. "A phenomenological performance model for applied-field MPD thrusters." Acta Astronautica 107 (February 2015): 177–86. http://dx.doi.org/10.1016/j.actaastro.2014.11.017.

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Hostetter, Margaret K. "Career development for physician-scientists: The model of the pediatric scientist development program." Journal of Pediatrics 140, no. 2 (February 2002): 143–44. http://dx.doi.org/10.1067/mpd.2002.121584.

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MIYASAKA, Takeshi, Noriyuki FUKUOKA, and Toshi FUJIWARA. "Numerical Analyses of MHD Flows Based on a Two-Fluid Model in MPD Thrusters." Journal of the Japan Society for Aeronautical and Space Sciences 48, no. 561 (2000): 350–56. http://dx.doi.org/10.2322/jjsass.48.350.

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Pollack, Harold A., and John G. Frohna. "A competing risk model of sudden infant death syndrome incidence in two US birth cohorts." Journal of Pediatrics 138, no. 5 (May 2001): 661–67. http://dx.doi.org/10.1067/mpd.2001.112248.

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Nada, T. R. "Performance characterisation of MPD thrusters." Aeronautical Journal 111, no. 1121 (July 2007): 443–52. http://dx.doi.org/10.1017/s000192400000470x.

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Abstract This paper introduces a characterisation of the performance indices and operating limits of the self field magnetoplasmadynamic thruster. The thrust, specific impulse, and efficiency are considered as the main performance indices, while the operating limits are the cathode lifetime, onset phenomenon, and the overfed state of the thruster. The effects of thruster parameters (current, mass flow rate, geometry, and propellant type) on the performance indices and operating limits are examined using one-dimensional model of cylindrical self-field thrusters. Design charts are presented to help the designers to choose the optimum and safe set of the thruster parameters that realise certain mission requirements.
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Gravdal, Jan Einar, Rolf J. Lorentzen, Kjell K. Fjelde, and Erlend H. Vefring. "Tuning of Computer Model Parameters in Managed-Pressure Drilling Applications Using an Unscented-Kalman-Filter Technique." SPE Journal 15, no. 03 (April 22, 2010): 856–66. http://dx.doi.org/10.2118/97028-pa.

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Summary To manage the annular pressure profile during managed-pressure drilling (MPD) operations, simulations performed with advanced computer models are needed. To obtain a high degree of accuracy in these simulations, it is crucial that all parameters describing the system are as correct as possible. A new methodology for real-time updating of key parameters in a well-flow model by taking into account real-time measurements, including measuring uncertainty, is presented. Key model parameters are tuned using a recently developed estimation technique based on the traditional Kalman filter. The presented methodology leads to a more-accurate prediction of well-flow scenarios. Although the present study is motivated by applications in MPD, the idea of tuning model parameters should be of great importance in a wide area of applications. The performance of the filter is studied, using both synthetic data and real measurements from a North Sea high-pressure/high-temperature (HP/HT) drilling operation. Benefits by this approach are seen in more-accurate downhole-pressure predictions, which are of major importance for safety and economic reasons during MPD operations.
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Chen, LianYu, Chien-shan Cheng, HuiFeng Gao, Ling Zhan, FengJiao Wang, Chao Qu, Ye Li, et al. "Natural Compound Methyl Protodioscin Suppresses Proliferation and Inhibits Glycolysis in Pancreatic Cancer." Evidence-Based Complementary and Alternative Medicine 2018 (2018): 1–9. http://dx.doi.org/10.1155/2018/7343090.

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Methyl protodioscin (MPD) is one of the main bioactive components in the plant of Dioscoreaceae. MPD has been demonstrated to possess antitumor activities. However, its role in pancreatic cancer and the underlying molecular mechanisms are poorly defined. In the present study, we demonstrated that MPD inhibited proliferation and promoted apoptosis of pancreatic cancer. Furthermore, our results demonstrated that MPD decreased oncogene c-Myc in protein level and resulted in concomitant reduction in glycolysis. In vivo assays with xenograft mouse model further confirmed the in vitro observations, which indicated that MPD inhibited 18FDG uptake in tumors formed by subcutaneously injection of MIA PaCa-2 cells. Collectively, our present study uncovered novel antitumor functions of MPD in pancreatic cancer and provided the possible molecular mechanism.
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Urbanetto, Janete de Souza, Maria Cristina Cademartori Magalhaes, Vanessa Oreda Maciel, Viviane Massena SantAnna, Andreia da Silva Gustavo, Carlos Eduardo Poli-de-Figueiredo, and Tania Solange Bosi de Souza Magnago. "Work-related stress according to the demand-control model and minor psychic disorders in nursing workers." Revista da Escola de Enfermagem da USP 47, no. 5 (October 2013): 1180–86. http://dx.doi.org/10.1590/s0080-623420130000500024.

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This was a cross-sectional study that aimed to assess the association between work-related stress according to the Demand-Control Model, and the occurrence of Minor Psychic Disorder (MPD) in nursing workers. The participants were 335 professionals, out of which 245 were nursing technicians, aged predominantly between 20 and 40 years. Data were collected using the Job Stress Scale and the Self-Reporting Questionnaire-20. The analysis was performed using descriptive and analytical statistics. The prevalence of suspected MPD was 20.6%. Workers classified in the quadrants active job and high strain of the Demand-Control Model presented higher potential for developing MPD compared with those classified in the quadrant low strain. In conclusion, stress affects the mental health of workers and the aspects related to high psychological demands and high control still require further insight in order to understand their influence on the disease processes of nursing workers.
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Dissertations / Theses on the topic "MPD Model"

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Green, Lance Noel, and n/a. "A study of the design studio in relation to the teaching of industrial & product design." University of Canberra. Design & Architecture, 2005. http://erl.canberra.edu.au./public/adt-AUC20070129.124614.

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In this thesis the industrial design studio has been investigated with particular reference to studio thinking and learning and project-based activity. This investigation has been set in the context of a final-year, degree program in industrial design that includes a substantial research and development project. From a critical review of the relevant literature the characteristics of studio culture have been identified, together with its role in the teaching of both creative and systematic endeavour. In addition, the history and context of the role of the industrial/product designer is reviewed in order to understand the nature and the required skills of the discipline. In this thesis, an initial study surveyed academics involved in teaching industrial design in Australia, and overseas. The study sought to determine the approach of students, in various industrial design degree programs, to their final-year projects and the extent to which design process and design methods were incorporated in their project reports. The findings revealed a number of operational needs associated with studio-based learning, particularly those associated with final-year, project-based activity. These findings, together with teachings from the literature concerning how students go about design in the studio and the needs associated with project activity, led to the proposal of a generic model, entitled the Major Project Development Model "MPD Model". The operational criteria in the MPD Model guided the development of a computer-integrated system of design methods allocated to the respective phases of the process. This system, called the "MPD System", is designed to support and enhance student design work in major projects. A second study was conducted that analysed: student performance in their project reports; the extent to which their design research conformed to the MPD Model; and the extent to which design methods were used in their final-year projects. Criteria and guidelines for the successful conduct and evaluation of such projects have been proposed and set up as part of the experimental programme. The experimental work, reported in this thesis, is based on an in-depth, comparative investigation of a range of major project reports, firstly those produced in the year 2003 during which final-year students did not have access to or knowledge of the MPD System and secondly, those produced in 2004 where students were provided with the MPD System, hence providing two cohorts for comparative purposes. The theoretical and experimental work have been related, with appropriate results and conclusions, to the following issues: Design theory � an MPD Model has been proposed and applied in keeping with a set of operational criteria; design methods - a model reflecting a range of methods aligned to phases of the MPD Model have been established in keeping with needs of designers in their execution of phases of the process; brainbased learning theory � a model of the integration of the MPD System as a means of linking systematic and creative thinking in the studio process is proposed; academic performance � the academic performance of students has been studied and data have been derived which provide valuable information for the design educational process. The results of this research will encourage use of a more structured teaching and learning approach and the employment of design methods in major projects. This comprehensive research thesis provides a framework for further research and recommendations for further research.
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Al-Mashat, Alex. "Comparison of Multiple Models for Diabetes Using Model Averaging." Thesis, Uppsala universitet, Institutionen för farmaci, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-448168.

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Pharmacometrics is widely used in drug development. Models are developed to describe pharmacological measurements with data gathered from a clinical trial. The information can then be applied to, for instance, safely establish dose-response relationships of a substance. Glycated hemoglobin (HbA1c) is a common biomarker used by models within antihyperglycemic drug development, as it reflects the average plasma glucose level over the previous 8-12 weeks. There are five different nonlinear mixed-effects models that describes HbA1c-formation. They use different biomarkers such as mean plasma glucose (MPG), fasting plasma glucose (FPG), fasting plasma insulin (FPI) or a combination of those. The aim of this study was to compare their performances on a population and an individual level using model averaging (MA) and to explore if reduced trial durations and different treatment could affect the outcome. Multiple weighting methods were applied to the MA workflow, such as the Akaike information criterion (AIC), cross-validation (CV) and a bootstrap model averaging method. Results show that in general, models that use MPG to describe HbA1c-formation on a population level could potentially outperform models using other biomarkers, however, models have shown similar performance on individual level. Further studies on the relationship between biomarkers and model performances must be conducted, since it could potentially lay the ground for better individual HbA1c-predictions. It can then be applied in antihyperglycemic drug development and to possibly reduce sample sizes in a clinical trial. With this project, we have illustrated how to perform MA on the aforementioned models, using different biomarkers as well as the difference between model weights on a population and individual level.
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Amarante, Tauanne Dias. "Modelo de regulação dos nucleotídeos extracelulares no líquido superficial das vias respiratórias." Universidade Federal de Minas Gerais, 2012. http://hdl.handle.net/1843/MPDZ-8TWPB3.

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Extracellular nucleotides play a key role in the regulation of mucociliary clearance and thus are essential in protecting the airways against inhaled pathogens. Adenosine triphosphate (ATP), adenosine diphosphate (ADP) and adenosine monophosphate (AMP) nucleotides are secreted by the respiratory epithelium to the airway surface liquid, where they are metabolized by ecto-enzymes and converted into the nucleosides adenosine (ADO) and inosine (INO) which in turn are absorbed by the cells of the respiratory epithelium. The concentrations of extracellular ATP and ADO, by activating the membrane receptors P2Y2 and A2B, regulate the mucus secretion rate, the ciliary beating frequency, and mucus hydration and mucus viscosity. The biochemical network that regulates the concentrations of extracellular ATP and ADO was recently described quantitatively by a computer model based on experimental data collected in cultures of human respiratory epithelial cells. Although this model reproduced the experimental data, it could not be used to investigate the regulation of extracellular nucleotides in vivo, because it was based on cell cultures containing _uid at a height of _ 1500_m, while in vivo the height of the airway surface liquid is approximately 30_m. Aiming to adapt the computer model to describe the behavior of the system in vivo, we selected from the literature experimental data where the regulatory network was investigated for liquid surface heights ranging from 14_m to 2730_m. The new version of the model, proposed in this work, consists in the solution of the reactiondi _usion equation in cylindrical coordinates, with boundary conditions that express the reactions catalyzed by ectonucleotidases on the surface of the bronchial epithelium. The set of coupled di_erential equations was solved numerically using the _nite volume method. The numerical solution was validated by comparing it with the analytical solution of two particular cases of boundary conditions: re_ective barriers and constant _ux at z = 0. Using the model, we investigate the behavior of the nucleotides after hypotonic challenge, the results are in good agreement with the experimental data. This model can be important for the development of new therapies for respiratory pathologies, especially cystic _brosis. Individuals with this genetic disease have chronic bacterial infection in the lungs due to a failure in mucociliary clearance, that includes mucus dehydration and excessive mucus secretion.
Os nucleotídeos extracelulares desempenham um papel fundamental na regulação do transporte mucociliar e, dessa forma, são essenciais na defesa das vias respiratórias contra patógenos inalados. Os nucleotídeos adenosina trifostafato (ATP), adenosina difosfato (ADP) e adenosina monofosfato (AMP) são secretados pelo epitélio respiratório para o líquido superficial das vias respiratórias, onde são metabolizados por ecto-enzimas e transformados nos nucleosídeos adenosina (ADO) e inosina (INO) que, por sua vez, são absorvidos pelas células do epitélio respiratório. São as concentrações de ATP e ADO extracelulares que, ao ativar os receptores P2Y2 e A2B na membrana celular, regulam a taxa de secreção de muco, a frequência de batimento ciliar e a hidratação e viscosidade do muco. Esta rede bioquímica de regulação das concentrações de ATP e ADO extracelulares foi recentemente descrita quantitativamente por um modelo computacional baseado em dados experimentais coletados em culturas de células do epitélio respiratório humano. Embora este modelo tenha reproduzido dados experimentais in vitro, ele não podia ser usado para investigar a regulação de nucleotídeos extracelulares in vivo, já que se baseou em culturas de célula contendo líquido a uma altura de ~1500 mm, enquanto in vivo a altura do líquido superficial é da ordem de 30 mm. Com o intuito de adaptar o modelo computacional para descrever o comportamento do sistema in vivo, selecionamos dados experimentais da literatura em que a rede de regulação foi investigada para alturas do líquido superficial variando de 14 mm a 2730 mm. A nova versão do modelo, proposta neste trabalho, consiste na solução da equação de reação-difusão em coordenadas cilíndricas, com condições de contorno que expressam as reações catalisadas pelas ectonucleotidases na superfície do epitélio bronquial. O conjunto de equações diferencias acopladas foi resolvido numericamente usando o método de volumes finitos. A método foi validado comparando a solução numérica com a solução analítica de dois casos particulares de condição de contorno: barreiras refletoras e fluxo constante em z=0. Utilizando o modelo, investigamos o comportamento dos nucleotídeos após choque hipotônico, obtendo uma boa concordância com os dados experimentais. Este modelo pode ser importante para o desenvolvimento de novas terapias para tratamento de patologias respiratórias, especialmente da Fibrose Cística. Os indivíduos portadores dessa doença genética apresentam quadro de infecção bacteriana crônica devido a uma falha no transporte mucociliar, que inclui a desidratação do muco e a secreção de muco em excesso
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Ng, Desmond Han Tien. "Stochastic model predictive control." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:b56df5ea-10ee-428f-aeb9-1479ce9a7b5f.

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The work in this thesis focuses on the development of a Stochastic Model Predictive Control (SMPC) algorithm for linear systems with additive and multiplicative stochastic uncertainty subjected to linear input/state constraints. Constraints can be in the form of hard constraints, which must be satisfied at all times, or soft constraints, which can be violated up to a pre-defined limit on the frequency of violation or the expected number of violations in a given period. When constraints are included in the SMPC algorithm, the difficulty arising from stochastic model parameters manifests itself in the online optimization in two ways. Namely, the difficulty lies in predicting the probability distribution of future states and imposing constraints on closed loop responses through constraints on predictions. This problem is overcome through the introduction of layered tubes around a centre trajectory. These tubes are optimized online in order to produce a systematic and less conservative approach of handling constraints. The layered tubes centered around a nominal trajectory achieve soft constraint satisfaction through the imposition of constraints on the probabilities of one-step-ahead transition of the predicted state between the layered tubes and constraints on the probability of one-step-ahead constraint violations. An application in the field of Sustainable Development policy is used as an example. With some adaptation, the algorithm is extended the case where the uncertainty is not identically and independently distributed. Also, by including linearization errors, it is extended to non-linear systems with additive uncertainty.
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Walker, Jens. "A motion cueing model for mining and forestry simulator platforms based on Model Predictive Control." Thesis, Umeå universitet, Institutionen för fysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-98685.

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Oryx Simulations produce simulators for mining and forestry machinery used for educational and promotional purposes. The simulators use motion platforms to reflect how the vehicle moves within the simulator. This platform tilts and accelerates the driver in order to enhance the experience. Previously a classical washout filter algorithm has been used to control the platform which leaves something to be desired regarding how well it reflects the vehicles movement, how easy it is to tune and how it handles the limits of the platform. This thesis aims to produce a model that accurately reflects angles, velocities and accelerations while in the mean time respecting the limits of the platform. In addition to this the developed model should be easy to modify and tune. This is achieved using so-called Model Predictive Control which achieves the wanted behaviour by predicting how the platform will move based on its current state while implementing the constraints of the platform directly into the model. Since all of the parameters in the model are actual physical quantities, this makes the model easier to tune. A key component in this solution is the so-called tilt coordination which consists of substituting a lateral/longitudinal acceleration with the acceleration of gravity by tilting the driver. Constructing and implementing this model in Matlab we verify it by using data extracted from the simulator environment. We see that the parameters consisting of angles, rotational velocities and linear accelerations are tracked very well while respecting the constraints for the platform, constraints that can be easily changed to fit the current simulator.We also see that the model successfully implements tilt coordination into the behaviour of the platform. This model performs extraordinarily well in theory, what remains is to implement this to the motion platform and fine-tune it.
Oryx Simulations tillverkar simulatorer i huvudsak för gruv- och skogsindustrinvilket används i utbildnings- och marknadsföringssyfte. Simulatorerna använder en röorelseplattform för att spegla hur fordonet i simulatormiljön rör sig. Denna plattform lutar och accelererar föraren för att förstarka upplevelsen. Tidigare har ett så kallat klassiskt washout-filter använts för att kontrollera plattformen som lämnar en del i övrigt att onska vad gäller hur väl fordonets rörelser speglas, hur lätt det ar att justera samt hur det hanterar plattformens begränsningar. Detta projekt ämnar producera en modell som väl speglar vinklar,hastigheter och accelerationer samtidigt som den respekterar plattformens gränser. I tillägg till detta bör modellen vara enkel att modifiera och justera. Detta uppnås genom så kallad Model Predictive Control som förutsager hur plattformen kommer röra sig utifrån dess aktuella tillstånd samtidigt som den respekterar de tvång som finns på plattformen direkt i modellen. Då alla parametrar i modellen är faktiska fysiska kvantiteter blir modellen märkbart lättare att justera. En viktig komponent i denna lösning är så kallad tilt coordination vilket består i att substituera lateral/longtudinell acceleration med en komposant av tyngdaccelerationen genom att luta föraren. Denna modell konstrueras och implementeras i Matlab och verifieras genom att använda extraherat data från den simulerade miljön. Vi kan se att parametrarna som består av vinklar, rotationella hastigheter och linjära accelerationer speglas väldigt väl, samtidigt som tvången på plattformen respekteras. Dessa tvång kan enkelt modieras for att passa den aktuella simulatorn. Vi ser även att modellen framgångsrikt implementerar tilt coordination i plattformens beteende. I teorin har denna modell väldigt bra prestanda; vad som kvarstår är att implementera den på en rörelseplattform och finjustera modellen.
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Barsk, Karl-Johan. "Model Predictive Control of a Tricopter." Thesis, Linköpings universitet, Reglerteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-79066.

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In this master thesis, a real-time control system that stabilizes the rotational rates of a tri-copter, has been studied. The tricopter is a rotorcraft with three rotors. The tricopter has been modelled and identified, using system identification algorithms. The model has been used in a Kalman filter to estimate the state of the system and for design ofa model based controller. The control approach used in this thesis is a model predictive controller, which is a multi-variable controller that uses a quadratic optimization problem to compute the optimal con-trol signal. The problem is solved subject to a linear model of the system and the physicallimitations of the system. Two different types of algorithms that solves the MPC problem have been studied. These are explicit MPC and the fast gradient method. Explicit MPC is a pre-computed solution to the problem, while the fast gradient method is an online solution. The algorithms have been simulated with the Kalman filter and were implemented on themicrocontroller of the tricopter.
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SILVA, Edson Alves da. "Um catálogo de regras para transformação automática de esquemas EER em código SQL-Relacional: uma visão MDD com foco em restrições estruturais não triviais." Universidade Federal de Pernambuco, 2015. https://repositorio.ufpe.br/handle/123456789/18303.

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Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2017-02-13T15:18:50Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) [dsc] Edson Alves v.1.5.6.pdf: 4201919 bytes, checksum: c682b493376c27a9896e5215c62283a1 (MD5)
Made available in DSpace on 2017-02-13T15:18:50Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) [dsc] Edson Alves v.1.5.6.pdf: 4201919 bytes, checksum: c682b493376c27a9896e5215c62283a1 (MD5) Previous issue date: 2015-03-02
CNPq
Model Driven Development (MDD) é um paradigma para geração automática de código executável que utiliza modelos como o seu artefato primário. No escopo de Banco de Dados, apesar das regras para transformação de esquemas Enhanced Entity Relationship (EER) em código da Structured Query Language (SQL)-Relacional já terem sido amplamente exploradas na literatura, não se encontrou um trabalho que ao mesmo tempo especifique tradutores MDD capazes de transformar, automaticamente, esquemas EER em códigos SQL-Relacional e aborde restrições como: Participação em Relacionamento, Disjunção e Completude em Herança ou Categoria são transformadas em estruturas SQL-Relacional. Neste contexto, visando dar uma contribuição às limitações mencionadas, esta dissertação apresenta duas macros contribuições: 1) um Catálogo de regras para transformar um esquema EER em um esquema Relacional e este em código SQL; e 2) um algoritmo que especifica uma ordem correta para a execução automática destas regras. De modo a mostrar a viabilidade e aplicação prática deste trabalho, o Catálogo de regras de transformação e o algoritmo para automatização do Catálogo são codificados na linguagem Query/View/Transformation-Relations (QVT-R) e implementados na ferramenta EERCASE. A avaliação do trabalho foi feita a partir da transformação de esquemas EER (não triviais) em códigos SQLRelacional, os quais são conferidos por especialistas de Banco de Dados. Por fim, comparando o trabalho proposto com os trabalhos relacionados investigados, constatou-se que o trabalho desta dissertação avança o estado da arte, pois é o único que é baseado em MDD e garante que as restrições de Participação em Relacionamento, Disjunção e Completude em Herança ou Categoria sejam automaticamente geradas para serem garantidas diretamente pelo Sistema de Gerenciamento de Banco de Dados.
Model Driven Development (MDD) is a paradigm for automatic generation of executable code that uses models as its primary artifact. In the database scope, despite the rules for transformation of Enhanced Entity Relationship (EER) schemas in code of Structured Query Language (SQL)-Relational have already been widely explored in the literature, we did not find a work that, at the same time, specifies MDD translators capable of transforming, automatically, EER schemas in SQL-Relational codes and addresses restrictions such as: Participation in Relationship, Disjunction and Completeness in Inheritance or Category are transformed into SQL-relational structures. In this context, in order to contribute for the mentioned limitations, this dissertation presents two macro contributions: 1) a rule Catalog to transform an EER schema into a Relational schema and this SQL code; and 2) an algorithm that specifies a correct order for the automatic enforcement of these rules. In order to show the feasibility and practical application of this work, the Catalog of transformation rules and the algorithm for Catalog automation are encoded in Query/View/TransformationRelations (QVT-R) language and implemented in EERCASE tool. The evaluation of the work was made from the processing of EER schemas (nontrivial) in SQL-Relational codes, which are conferred by database experts. Finally, comparing the proposed work with the related work investigated, it was found that the proposed work advances the state of the art, as it is the only one that is based on MDD and ensures that the restrictions on Participation in Relationship, Disjunction in Inheritance and Completeness in Inheritance or Category are guaranteed by the Database Management System.
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Freij, Urban. "Modelldriven arkitektur förbättrar hanteringen av problemet med import av data till ER-modeller." Thesis, KTH, Data- och elektroteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-169048.

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I många sammanhang är det önskvärt att importera data från textfiler, excelfiler och liknande till en databas. För detta krävs att data i något skede översätts till en ER-modell (Entity Relationship), en modell som beskriver relevanta delar i ett databasschema. Modellen för hur denna översättning ser ut varierar från fall till fall. I det här examensarbetet har en applikation tagits fram för import av data till en ER-modell ur ett modellperspektiv i linje med Model Driven Architecture (MDA) ™. Vinsten ligger i att använda en metamodell som beskriver hur olika modeller för transformering från tabelldata till en ER-modell får se ut. Modellerna i sin tur beskriver hur transformeringen ska se ut. På så sätt kan flera olika modeller användas utan att ändringar i källkoden behöver göras. Metamodellen som beskriver transformeringen har visualiserats i ett klassdiagram. Klassdiagrammet beskriver schematiskt sambanden mellan tabeller som data ska importeras ifrån och den ER-modell som data ska överföras till. Metamodellen har transformerats till ett XML-schema.  Modellerna som ska användas har skrivits i en XML-fil som följer den transformerade metamodellen.
In many situations it is desirable to import data from text files, excel files and similar to a database. To do so the data needs to be translated at some stage to an ER model (Entity Relationship), i.e. a model describing relevant parts of a database schema. The approach for this translation varies from case to case. During this thesis an application has been developed to import data to an ER model from a modeling perspective, in line with the Model Driven Architecture (MDA) ™. The gain lies in using a metamodel that describes how different models for transformation from grid tables to an ER mode may look like. The models in turn describe how the transformation will look, thus allowing the usage of several different models without any need of changes to the source code. The metamodel describing the transformation of data can be visualized in a class diagram. The class diagram schematically describes the relationships between tables of data to be imported from and the ER model the data will be transferred to. Preferable is to write a model in an XML that conforms to the metamodel. Therefore the class diagram should be transformed into an XML schema that enables validation of the model in the XML file.
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Rosdal, David. "Missilstyrning med Model Predictive Control." Thesis, Linköping University, Department of Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2748.

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This thesis has been conducted at Saab Bofors Dynamics AB. The purpose was to investigate if a non-linear missile model could be stabilized when the optimal control signal is computed considering constraints on the control input. This is particularly interesting because the missile is controlled with rudders that have physical bounds. This strategy is called Model Predictive Control. Simulations are conducted to compare this strategy with others; firstly simulations with step responses and secondly simulations when the missile is supposed to hit a moving target. The latter is performed to show that the missile can be stabilized in its whole area of operation. The simulations show that the controller indeed can stabilize the missile for the given scenarios. However, this control strategy does not show any obvious improvements in comparison with alternative ones.

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Morinelly, Sanchez Juan Eduardo. "Adaptive Model Predictive Control with Generalized Orthonormal Basis Functions." Research Showcase @ CMU, 2017. http://repository.cmu.edu/dissertations/1091.

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An adaptive model predictive control (MPC) method using models derived from orthonormal basis functions is presented. The defining predictor dynamics are obtained from state-space realizations of finite truncations of generalized orthonormal basis functions (GOBF). A structured approach to define multivariable system models with customizable, open-loop stable linear dynamics is presented in Chapter 2. Properties of these model objects that are relevant to the adaptation component of the overall scheme, are also discussed. In Chapter 3, non-adaptive model predictive control policies are presented with the definition of extended state representations through filter operations that enable output feedback. An infinite horizon set-point tracking policy which always exists under the adopted modeling framework is presented. This policy and its associated cost are included as the terminal stage elements for a more general constrained case. The analysis of robust stability guarantees for the non-adaptive constrained formulation is presented, under the assumption of small prediction errors. In Chapter 4, adaptation is introduced and the certainty equivalence constrained MPC policy is formulated under the same framework of its non-adaptive counterpart. Information constraints that induce the excitation of the signals relevant to the adaptation process are formulated in Chapter 5. The constraint generation leverages the GOBF model structure by enforcing a sufficient richness condition directly on the state elements relevant to the control task. This is accomplished by the definition of a selection procedure that takes into account the characteristics of the most current parameter estimate distribution. Throughout the manuscript, illustrative simulation examples are provided with respect to minimal plant models. Concluding remarks and general descriptions for potential future work are outlined in Chapter 6.
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Books on the topic "MPD Model"

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Kranenburg, Kees. Model-based application development (MAD): Generating information systems from models and business rules. Deventer: Kluwer BedrijfsInformatie, 1998.

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Mitt liv med moder Russland. Oslo: Aschehoug, 2009.

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Green, Jen. Making mad machines. New York: Gloucester Press, 1992.

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Lantz, Björn. Internprissättning med effektiva incitament. Göteborg: BAS, 2000.

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Mid-course Correction: Toward a Sustainable Enterprise: The Interface Model. Atlanta, USA: Peregrinzilla Press, 1998.

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Ketner, Keith Brindley. Mid-Permian Phosphoria Sea in Nevada and the upwelling model. Reston, Va: U.S. Geological Survey, 2009.

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Ketner, Keith Brindley. Mid-Permian Phosphoria Sea in Nevada and the upwelling model. Reston, Va: U.S. Geological Survey, 2009.

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Anderson, Ray C. Mid-course correction: Toward a sustainable enterprise :The Interface model. White River Junction, VT: Chelsea Green, 2005.

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Ketner, Keith Brindley. Mid-Permian Phosphoria Sea in Nevada and the upwelling model. Reston, Va: U.S. Geological Survey, 2009.

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Ketner, Keith Brindley. Mid-Permian Phosphoria Sea in Nevada and the upwelling model. Reston, Va: U.S. Geological Survey, 2009.

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Book chapters on the topic "MPD Model"

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Camacho, Eduardo F., and Carlos Bordons. "Multivariable MPC." In Model Predictive Control, 131–66. London: Springer London, 1999. http://dx.doi.org/10.1007/978-1-4471-3398-8_6.

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Camacho, Eduardo F., and Carlos Bordons. "Constrained MPC." In Model Predictive Control, 167–207. London: Springer London, 1999. http://dx.doi.org/10.1007/978-1-4471-3398-8_7.

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Camacho, Eduardo F., and Carlos Bordons. "Robust MPC." In Model Predictive Control, 209–28. London: Springer London, 1999. http://dx.doi.org/10.1007/978-1-4471-3398-8_8.

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Kouvaritakis, Basil, and Mark Cannon. "Introduction to Stochastic MPC." In Model Predictive Control, 243–69. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-24853-0_6.

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Takács, Gergely, and Boris Rohal’-Ilkiv. "Basic MPC Formulation." In Model Predictive Vibration Control, 207–51. London: Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2333-0_6.

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Takács, Gergely, and Boris Rohal’-Ilkiv. "Efficient MPC Algorithms." In Model Predictive Vibration Control, 287–322. London: Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2333-0_8.

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Kouvaritakis, Basil, and Mark Cannon. "MPC with No Model Uncertainty." In Model Predictive Control, 13–64. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-24853-0_2.

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Farina, Marcello, Giancarlo Ferrari-Trecate, Colin Jones, Stefano Riverso, and Melanie Zeilinger. "Scalable MPC Design." In Handbook of Model Predictive Control, 259–83. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-77489-3_12.

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Freidberg, Jeffrey P. "The MHD Model." In Ideal Magnetohydrodynamics, 5–42. Boston, MA: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4757-0836-3_2.

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Klaučo, Martin, and Michal Kvasnica. "Model Predictive Control." In MPC-Based Reference Governors, 15–34. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-17405-7_3.

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Conference papers on the topic "MPD Model"

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Fares, Naceredine. "Transient Numerical Model for Narrow MPD Window." In Offshore Technology Conference Asia. Offshore Technology Conference, 2018. http://dx.doi.org/10.4043/28577-ms.

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Mikellides, P., P. Turchi, and N. Roderick. "Theoretical model for applied-field MPD thrusters." In 31st Joint Propulsion Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1995. http://dx.doi.org/10.2514/6.1995-2676.

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MARTINEZ-SANCHEZ, M. "A two dimensional model of an MPD thruster." In 27th Joint Propulsion Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-2344.

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Stakvik, Jon Åge, Christian Berg, Glenn-Ole Kaasa, Ole Morten Aamo, and Urs Lehner. "Adaptive Model Based Choke Control System for MPD Operations." In SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition. Society of Petroleum Engineers, 2016. http://dx.doi.org/10.2118/179714-ms.

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Fan, Honghai, Haobo Zhou, Guo Wang, Qi Peng, and Yiqing Wang. "Utility Hydraulic Calculation Model of Herschel-Bulkley Rheological Model for MPD Hydraulics." In SPE Asia Pacific Oil & Gas Conference and Exhibition. Society of Petroleum Engineers, 2014. http://dx.doi.org/10.2118/171443-ms.

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Udegbunam, John Emeka, Kjell Kayre Fjelde, Steinar Evje, and Gerhard Nygaard. "A Simple Transient Flow Model for MPD and UBD Applications." In SPE/IADC Managed Pressure Drilling & Underbalanced Operations Conference & Exhibition. Society of Petroleum Engineers, 2014. http://dx.doi.org/10.2118/168960-ms.

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Mikellides, Pavlos, and Peter Turchi. "A theoretical model for the thrust and voltage of applied-field MPD thrusters." In 34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1998. http://dx.doi.org/10.2514/6.1998-3474.

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Lin, Chia-Li, Ya-Wen Yu, and Gwo-Hshiung Tzeng. "The System Evaluation Model of Mobile Navigation Devices (MPD) Using Integrated DEMATEL Approach." In International Conference on Industrial Application Engineering 2015. The Institute of Industrial Applications Engineers, 2015. http://dx.doi.org/10.12792/iciae2015.062.

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Fan, Hongkang, Shanhong Jiang, XianHai Zhou, Guo Wang, Haobo Zhou, and Hongning Zhang. "A Comprehensive Model for Gas Influx Detection and Control While Managed Pressure Drilling and Its Application." In IADC/SPE Asia Pacific Drilling Technology Conference. SPE, 2021. http://dx.doi.org/10.2118/201001-ms.

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Abstract The equipment commonly used in managed pressure drilling (MPD) allows alternative responses to kicks that do not need to stop the pump or shut in the well. The pivotal issue of kick control for MPD is the early gas influx detection and the optimal initial response when the kick was detected during drilling. The careful research on gas influx detection and the corresponding control method is very important. Firstly, the valve opening, bottom hole and well head pressure variation characteristics were analyzed based on the real-time measured data, and then the valve opening and pressure signature of gas influx for different MPD modes (CBHP, CWHP, MFC) was obtained based on the theoretical and model analysis, in which the pressure variation caused by the tripping, ROP and flow rate variation were taken into account, through which the gas kick can accurately detected as soon as quickly. Secondly, the influence factors for initial response selection of kick control was analyzed, and then the comprehensive optimization schedule of response for kick control was established, in which several factors were took into account, such as formation characteristics, drilling conditions, influx intensity and so on, through which the best mode for kick control can be obtained easily. Moreover, integrated software that combined kick detection and gas kick control simulation was developed based on which the best pressure control procedure and kick initial response can be obtained easily. The gas influx detection and control technique has been applied in Fuling shale gas field of SINOPEC, which is the first large-scale commercial development shale gas field of China. The results show that we can make precisely gas detection based on the new early gas influx detection method and the kick can also be control very well based on the optimization method. Based on the proposed method for kick detection and control, the NPT have been reduced more than 60%. This study will presented a novel gas kick detection theoretical model for all common MPD modes, and the gas influx control optimal procedure. Through the field application in shale gas drilling, the results show that the NPT has been reduced obviously, and the optimal kick control was designed has successfully prevented the serious kick and reduced the drilling cost.
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Puryear, Charles I., Shenghong Tai, John P. Castagna, Ron Masters, and Fa Dwan. "Comparison of frequency attributes from CWT and MPD spectral decompositions of a complex turbidite channel model." In SEG Technical Program Expanded Abstracts 2008. Society of Exploration Geophysicists, 2008. http://dx.doi.org/10.1190/1.3054830.

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Reports on the topic "MPD Model"

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Manickam, J. External kink modes as a model for MHD activity associated with ELMs. Office of Scientific and Technical Information (OSTI), January 1992. http://dx.doi.org/10.2172/5934895.

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Manickam, J. External kink modes as a model for MHD activity associated with ELMs. Office of Scientific and Technical Information (OSTI), January 1992. http://dx.doi.org/10.2172/10118061.

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Petviashvili, V. A filament model of MHD turbulence. Office of Scientific and Technical Information (OSTI), November 1996. http://dx.doi.org/10.2172/451196.

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Pritchard, Howard. MPI Global Exception Model and ULFM Reconciliation. Office of Scientific and Technical Information (OSTI), December 2014. http://dx.doi.org/10.2172/1165171.

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Zurk, Lisa M. Mid-Frequency Bottom Scattering Model Development And Validation. Fort Belvoir, VA: Defense Technical Information Center, September 2008. http://dx.doi.org/10.21236/ada533158.

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Cheng, C. Z. A kinetic-MHD model for low frequency phenomena. Office of Scientific and Technical Information (OSTI), July 1991. http://dx.doi.org/10.2172/5722611.

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Glenn, J. W. BTA Magnet Field Map Archive and MAD Model. Office of Scientific and Technical Information (OSTI), April 2008. http://dx.doi.org/10.2172/939974.

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Glenn J. W. BTA Magnet Field Map Archive and MAD Model. Office of Scientific and Technical Information (OSTI), April 2008. http://dx.doi.org/10.2172/1061896.

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Connor, J., R. Hastie, and J. Taylor. Resonant MHD modes with toroidal coupling. Office of Scientific and Technical Information (OSTI), July 1990. http://dx.doi.org/10.2172/6691315.

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Park, W., Z. Chang, E. Fredrickson, G. Y. Fu, N. Pomphrey, H. R. Strauss, and L. E. Sugiyama. 3D simulation studies of tokamak plasmas using MHD and extended-MHD models. Office of Scientific and Technical Information (OSTI), January 1997. http://dx.doi.org/10.2172/304170.

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