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Literatura académica sobre el tema "P controller"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 19 de febrero de 2022

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Artículos de revistas sobre el tema "P controller"

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Aremanda, Ramesh Babu, Nahom Yohannes y Yosief Ghezae. "PERFORMANCE STUDIES ON WATER FLOW CONTROL USING P, PI AND PID CONTROLLERS". Journal of Engineering Science 28, n.º 3 (septiembre de 2021): 126–38. http://dx.doi.org/10.52326/jes.utm.2021.28(3).11.

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The main purpose of this study is to revitalize the concept of wise and controlled supply of water for domestic, industrial and agricultural applications which facilitate sustainable usage of fresh water resources. As Eritrea is striving to manage its water resources, attention paid primarily to enable water flow control mechanisms in municipal water distribution systems. A table top process control trainer (PCT) was tested through proportional(P), integral (I) and derivative (D) control mechanisms using Ziegler-Nichols second method to evaluate the tuning variables. Applying exclusively P control action, critical period of oscillation (𝑃𝑃𝑐𝑐𝑐𝑐) was estimated as 1.4 sec at proportional band value of 9. P, PI and PID controller performance studies were conducted with tuned variables on the water flow control system at different step disturbances between 20 – 50 % and their corresponding responses were characterized. P controller exhibited faster responses with consistent increments in offset, PI controller recorded highest overshoot values with negligible offset and prolonged settling times. PID controller showed less overshoot values and faster response times than PI but it increased chatter on the control output signal. The study revealed that the system can be safely controlled between 0-80 LPH. If the offset is not a major concern, P controller would be reflected suitable with simple design and minimum expenditure, else PI controller makes offset to zero though it possesses higher settling times. In other words, PID controller is complex using more tuning parameters, need expensive maintenance, and has resulted an intermittent noise in the output signal.
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Pasha, SK Abdul y N. Prema Kumar. "Model Predictive Controller based Unified Power Quality Conditioner for Voltage Regulation Studies in 33- Bus Closed Loop Distribution System". E3S Web of Conferences 184 (2020): 01073. http://dx.doi.org/10.1051/e3sconf/202018401073.

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Recent developments in FACTS have produced U.P.Q.C to mitigate sag and attenuate THD. U.P.Q.C has been urbanized as a FACTS controller between feeding end & far end of distribution system .The U-P-Q-C is capable of improving the voltage profile & reducing THD of distribution system by regulating the voltage using PR (Proportional-Resonant-Controller) and MPC (Model-Predictive) controller. This work proposes U-P-Q-C for Thirty Three Bus Systems .The objective of this work is to enhance-voltage-profile of T-T-B-S. The T-T-B-S in open loop & closed loop-TTBS- U-P-Q-C using PR and MPC-controllers are-modeled,pretend & their consequences are represented. Responses are estimated as a time of settle and error in steady state. The outcomes indicate that MP Controlled T-T-B-S system has better response than PR controlled T-T-B-S system.
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Padhy, P. K., S. Majhi y D. P. Atherton. "PID-P CONTROLLER FOR TITO SYSTEMS". IFAC Proceedings Volumes 38, n.º 1 (2005): 54–59. http://dx.doi.org/10.3182/20050703-6-cz-1902.00409.

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Batayneh, Wafa y Yusra AbuRmaileh. "Decentralized Motion Control for Omnidirectional Wheelchair Tracking Error Elimination Using PD-Fuzzy-P and GA-PID Controllers". Sensors 20, n.º 12 (22 de junio de 2020): 3525. http://dx.doi.org/10.3390/s20123525.

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The last decade observed a significant research effort directed towards maneuverability and safety of mobile robots such as smart wheelchairs. The conventional electric wheelchair can be equipped with motorized omnidirectional wheels and several sensors serving as inputs for the controller to achieve smooth, safe, and reliable maneuverability. This work uses the decentralized algorithm to control the motion of omnidirectional wheelchairs. In the body frame of the omnidirectional wheeled wheelchair there are three separated independent components of motion including rotational motion, horizontal motion, and vertical motion, which can be controlled separately. So, each component can have its different sub-controller with a minimum tracking error. The present work aims to enhance the mobility of wheelchair users by utilizing an application to control the motion of their attained/unattained smart wheelchairs, especially in narrow places and at hard detours such as 90˚ corners and U-turns, which improves the quality of life of disabled users by facilitating their wheelchairs’ maneuverability. Two approaches of artificial intelligent-based controllers (PD-Fuzzy-P and GA-PID controllers) are designed to optimally enhance the maneuverability of the system. MATLAB software is used to simulate the system and calculate the Mean Error (ME) and Mean Square Error (MSE) for various scenarios in both approaches, the results showed that the PD-Fuzzy-P controller has a faster convergence in trajectory tracking than the GA-PID controller. Therefore, the proposed system can find its application in many areas including transporting locomotor-based disabled individuals and geriatric people as well as automated guided vehicles.
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Attiya, Adnan Jabbar, Yang Wenyu y Salam Waley Shneen. "Compared with PI, Fuzzy-PI and PSO-PI Controllers of Robotic Grinding Force Servo System". TELKOMNIKA Indonesian Journal of Electrical Engineering 16, n.º 1 (1 de octubre de 2015): 65. http://dx.doi.org/10.11591/tijee.v16i1.1589.

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<p>By grinding process, when an industrial robot is used to finish a curved surface, both feed movement and contact force must controlled at the similar time in order that the grinding tool would machine the work-piece at the right position in right posture with required force. A passive wrist system is advanced, in this paper, to conform the shape of the machining propeller by altering its posture along with the surface. The proportional-integral (PI) controller, due to its simplicity, robustness, and affordable price, is extremely often used in practical applications, but it is effective for linear systems, as well as, the challenging task is to find its optimal gains. If the processes involved higher order and time delay systems, many intelligent controllers were appeared. In this paper, to cope with nonlinearities, improve the controller parameters and at the same time modeling uncertainties of grinding marine propeller surface, a PI torque controller is proposed such that its optimal gains are derived via a modern systems based on fuzzy logic theory and particle swarm optimization algorithm which are used to solve various engineering problems. Grinding force is controlled under Fuzzy-PI controller which is being assembled and compared with a PSO-PI controller to obtain which controller that provides grinding with higher quality. The compared controllers have been optimized together with the parameters of the Two-Phase Hybrid Stepping Motor. The suggested fuzzy rule function and PSO algorithm improve the response of the controlled system and searches a high-quality solution impressively. Simulation and comparison results are presented and that the proposed control systems are coping well with nonlinearities and uncertainties while find PI control parameter set effectively, the PSO-PI controller has a better control performance with improved step response for robotic grinding force servo system. These control methods was simulated using MATLAB/SIMULINK.</p>
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Apriaskar, Esa, Fahmizal Fahmizal, Nur Azis Salim y Dhidik Prastiyanto. "Performance Evaluation of Balancing Bicopter using P, PI, and PID Controller". Jurnal Teknik Elektro 11, n.º 2 (20 de diciembre de 2019): 44–49. http://dx.doi.org/10.15294/jte.v11i2.23032.

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Due to potential features of unmanned aerial vehicles for society, the development of bicopter has started to increase. This paper contributes to the development by presenting a performance evaluation of balancing bicopter control in roll attitude. It aims to determine the best controller structure for the balancing bicopter. The controller types evaluated are based on Ziegler-Nichols tuning method; they are proportional (P), proportional-integral (PI), and proportional-integral-derivative (PID) controllers. Root locus plot of the closed-loop balancing bicopter system is used to decide the tuning approach. This work considers a difference in pulse-width-modulation (PWM) signal between the left and right rotors as the signal control and bicopter angle in roll movement as the output. Parameters tuned by the method are Kp, Ti, and Td which is based on the ideal PID structure. The performance test utilizes rising time, settling time, maximum overshoot, and steady-state error to determine the most preferred controller. The result shows that PI-controller has the best performance among the other candidates, especially in maximum overshoot and settling time. It reaches 8.34 seconds in settling time and 3.71% in maximum overshoot. Despite not being the best in rising time and resembling PID-controller performances in steady-state error criteria, PI-controller remains the most preferred structure considering the closeness of the response to the desired value.
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Kazachek, Nina A., Valery M. Lokhin y Vladimir A. Ryabcov. "Complex Research of Dynamics of Control Systems with Fuzzy P–Controller". International Journal of Materials, Mechanics and Manufacturing 4, n.º 2 (2015): 140–43. http://dx.doi.org/10.7763/ijmmm.2016.v4.242.

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Deepa, Somasundaram, N. Anipriya y R. Subbulakshmy. "Design of Controllers for Continuous Stirred Tank Reactor". International Journal of Power Electronics and Drive Systems (IJPEDS) 5, n.º 4 (1 de abril de 2015): 576. http://dx.doi.org/10.11591/ijpeds.v5.i4.pp576-582.

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<p>The objective of the project is to design various controllers for temperature control in Continuous Stirred Tank Reactor (CSTR) systems. Initially Zeigler-Nichols, modified Zeigler-Nichols, Tyreus-Luyben, Shen-Yu and IMC based method of tuned Proportional Integral (PI) controller is designed and comparisons are made with Fuzzy Logic Controller. Simulations are carried out and responses are obtained for the above controllers. Maximum peak overshoot, Settling time, Rise time, ISE, IAE are chosen as performance index. From the analysis it is found that the Fuzzy Logic Controller is a promising controller than the conventional controllers.</p>
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AL-Khazraji, Huthaifa, Colin Cole y William Guo. "Analysing the impact of different classical controller strategies on the dynamics performance of production-inventory systems using state space approach". Journal of Modelling in Management 13, n.º 1 (12 de febrero de 2018): 211–35. http://dx.doi.org/10.1108/jm2-08-2016-0071.

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Purpose The purpose of this paper is to examine the impact of applying two classical controller strategies, including two proportional (P) controllers with two feedback loops and one proportional–integral–derivative (PID) controller with one feedback loop, on the order and inventory performance within a production-inventory control system. Design/methodology/approach The simulation experiments of the dynamics behaviour of the production-inventory control system are conducted using a model based on control theory techniques. The Laplace transformation of an Order–Up–To (OUT) model is obtained using a state-space approach, and then the state-space representation is used to design and simulate a controlled model. The simulations of each model with two control configurations are tested by subjecting the system to a random retail sales pattern. The performance of inventory level is quantified by using the Integral of Absolute Error (IAE), whereas the bullwhip effect is measured by using the Variance ratio (Var). Findings The simulation results show that one PID controller with one feedback loop outperforms two P controllers with two feedback loops at reducing the bullwhip effect and regulating the inventory level. Originality/value The production-inventory control system is broken down into three components, namely: the forecasting mechanism, controller strategy and production-inventory process. A state-space approach is adopted to design and simulate the different controller strategy.
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Brendle, M. y K. Schmidt. "A multiplex-switch controller". Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 302, n.º 2 (abril de 1991): 339–41. http://dx.doi.org/10.1016/0168-9002(91)90418-p.

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Tesis sobre el tema "P controller"

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Chen, Guoyu. "PAILAC: Power and Inference Latency Adaptive Control for Machine Learning Services". The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu160608666572472.

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Salem, Qusay [Verfasser]. "A transformerless H-bridge inverter as a bidirectional power flow controller in a microgrid based P/V droop control / Qusay Salem". Ulm : Universität Ulm, 2020. http://d-nb.info/1208767070/34.

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Iqbal, K. M. y Zhang QiShan. "Personal Navigation System Based on GPS". International Foundation for Telemetering, 1996. http://hdl.handle.net/10150/611404.

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International Telemetering Conference Proceedings / October 28-31, 1996 / Town and Country Hotel and Convention Center, San Diego, California
Navigation is the means by which a craft is given guidance from one known location to another. Since the global positioning system (GPS) is very accurate positioning system, a personal navigation system based on GPS is very effective. From the user point of view, the function of this system is to provide real-time positioning and timing data to the user. The system consists of 6-channel GPS oncore receiver, a system controller & processor (SC&P) card, a programmable liquid crystal display (LCD) and a keyboard. The 6-channel GPS OEM card receives GPS signal from six different satellites at a time. After processing the received GPS signal, it gives the result & status message to its output port in a typical data format. The system controller & processor card receives this message from the GPS OEM card and extracts the useful positioning & timing information in binary form. After that it processes the data and displays it on the LCD display. The keyboard has used to select the desired positioning & timing information on the display.
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Karlsson, Kristoffer. "Den intelligenta pumpstationen -Optimering av energiförbrukningoch utveckling avautomatiseringsfunktion förfelhantering". Thesis, KTH, Data- och elektroteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-208961.

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Detta arbete har undersökt möjligheten att via styrsystemet för en avloppspump-station optimera energiförbrukningen av pumpar och med styrfunktioner förenkla driftunderhållet av stationen.För att undersöka energiförbrukningen har en teoretisk modell av en pumpstation gjorts där energitester för tre olika reglermetoder simulerats. Två av metoderna var start/stopp-styrning och en P-regulator som vanligen används i pumpstationer. Den tredje metoden var en Fuzzy-regulator som med hänsyn till nivån och nivåför-ändring reglerar varvtalet på pumpen.Resultatet från energitesterna visade att start/stopp-styrning förbrukade mest energi och att Fuzzy-regulatorn påvisade bäst egenskaper för att optimera energi-förbrukningen. Fuzzy-regulatorns energiförbrukning var mindre vid merparten av testerna jämfört med P-regulatorn. Fuzzy-regulatorn påvisade bäst egenskaper då inflödet var lågt relativt pumpens kapacitet och då bottenarean på sumpen var mindre.Vid undersökning av nya styrfunktioner har intervjuer av driftchefer utförts för att få en bild av problematiken som kan uppstå i en pumpstation. De styrfunktioner som utvecklats hade syftet att minska antalet förstoppade pumpar då detta var största problematiken.
This paper has investigated the possibility of optimizing the power consumption of pumps through the control system for a wastewater pumping stations. Further-more, the possibilities of developing new control functions has been investigated, with the purpose to simplify the operation maintenance of the station. To investigate energy consumption, a theoretical model of a pumping station has been made where energy tests for three different control methods have been per-formed. Two of the methods studied were on/off control and a P controller which are commonly used in pump stations. The third method was a Fuzzy controller which, with regard to the level and level change, regulates the speed of the pump.The results from the energy tests showed that on/off control consumed most en-ergy and the Fuzzy controller demonstrated best features to optimize energy con-sumption. The Fuzzy controller’s energy consumption was less in most of the tests compared with the P controller. The Fuzzy controller showed the best properties when the inflow was low relative to the pump’s capacity and the bottom area of the sump was smaller.When investigating new control functions, interviews with management executives has been made to get a picture of the problems that may occur in a pump station. The control functions developed had the purpose of reducing the number of clogged pumps as this was the biggest problem.
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Ccantuta, Chirapo Karlos Alexander. "Controle de potência do gerador de relutância variável de 12/8 utilizando o controlador fuzzy pi auto-ajustável". reponame:Repositório Institucional da UFABC, 2018.

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Orientador: Prof. Dr. José Luis Azcue Puma
Coorientador: Prof. Dr. José Alberto Torrico Altuna
Dissertação (mestrado) - Universidade Federal do ABC, Programa de Pós-Graduação em Engenharia Elétrica, Santo André, 2018.
Este trabalho apresenta o controle de potência do gerador de relutância variável de 12/8 utilizando o controlador Fuzzy PI auto-ajustável e o controlador P+ressonante para o conversor conectado à rede elétrica. Inicialmente são estudados os princípios de operação da máquina e a topologia do conversor eletrônico de potência. Usando o software de simulação Matlab/Simulink é implementado o modelo da máquina de relutância variável utilizando as curvas características de corrente e de torque. Com o objetivo de controlar a potência gerada pela máquina e utilizando seu modelo matemático dinâmico projeta-se o controlador PI, e implementa-se o controlador Fuzzy PI auto-ajustável para atingir o mesmo objetivo. Assim, projeta-se também um controlador PI para o controle da tensão CC além de um controlador P+ressonante com o objetivo de melhorar a resposta em regime permanente da potência injetada na rede elétrica. Para este propósito é utilizado um conversor monofásico de dois níveis. Os resultados das simulações mostram o bom desempenho do sistema proposto e o controlador de potência é validado também através de resultados experimentais.
This work presents the power control of the 12/8 variable reluctance generator using Fuzzy self-tuning PI controller and the P+resonant controller for the converter connected to the electric network. Initially are studied the principles of operation of the machine and power electronic converter topology. Using the Matlab/Simulink simulation software is implemented the model of switched reluctance machine using the current and its torque characteristic curves. With the purpose of controlling the power generated by the machine and using his dynamic mathematical model is designed the PI controller, and the Fuzzy self-tuning PI controller is implemented to achieve the same objective. So, also is designed a PI controller for control of the link DC, in addition to the P+resonant controller with the objective of improving the response to its steady state of the injected power into the electric network. For this purpose it is used a single-phase two-level converter. The results of the simulations show the good performance of the proposed system and the power controller is validated by experimental results.
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Teixeira, Maria da Gloria Lima Cruz. "Dengue e espacos intra-urbanos: dinamica de circulacao viral e efetividade de acoes de combate vetorial". Salvador : [s.n.], 2000. http://www.saudepublica.bvs.br/P/teses/1dout.pdf.

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Kalčík, Petr. "Odporová pila". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217916.

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This work is focused on the design and construction of component parts of resistance saw. Mechanical parts consist of a movable bracket and a taut cutting wire of Constantan. Electrical parts are designed to supply and control temperature of the cutting wire. The current intensity in the cutting wire is compared with the required current intensity. The difference of these two measurements is fed into a PI - controller. The next part is a PWM generator which generates the square wave signal. The pulse ratio of this signal is proportional to the required temperature of the cutting wire. This signal switches a switching converter that consists of a power transistor P-MOSFET IRF5210 and a diode MBR20100CT. Choking coil with a ferrite E core and with the cutting wire is connected to the output of the converter.
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Jansson, Lovisa y Amanda Nilsson. "Evaluation of Model-Based Design Using Rapid Control Prototyping on Forklifts". Thesis, Linköpings universitet, Reglerteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-158715.

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The purpose of this thesis is to evaluate Rapid Control Prototyping which is apart of the Model-Based Design concept that makes it possible to convenientlytest prototype control algorithms directly on the real system. The evaluation ishere done by designing two different controllers, a gain-scheduled P controllerand a linear Model Predictive Controller (mpc), for the lowering of the forks of aforklift.The two controllers are first tested in a simulation environment. The thesis con-tains two different simulation models: one physical where only minor parameteradjustments are done and one estimated black-box model. After evaluating thecontrollers in a simulation environment they are tested on a real forklift with areal-time target machine.The designed controllers have different strengths and weaknesses as one is non-linear and single variable, the P controller, and the other linear and multivariable,thempc. The P controller has a smooth movement in all situations without be-ing slow, unlike thempc. The disadvantage of the P controller compared to thempcis that there is no guarantee that the P controller will keep the speed limit,whereas thempcapproach gives such a guarantee.The better performance of the P controller outweighs the speed limit guaranteeand thus a conclusion is drawn that the nonlinearities of the system has a largereffect than the multivariable aspect. Also, another conclusion drawn is that work-ing with Model-Based Design and Rapid Control Prototyping makes it possibleto test many different ideas on a real forklift without spending a lot of time onimplementation.
Syftet med detta examensarbete är att utvärdera Rapid Control Prototyping vil-ket är en del av modellbaserad utveckling som gör det möjligt att enkelt testamodeller av styralgoritmer direkt på det riktiga systemet. Utvärderingen är gjordgenom att testa två olika regulatorer, en P-regulator med parameterstyrning ochen linjär modelbaserad prediktionsregulator (mpc), för sänkningen av gafflarnapå en truck.De två regulatorerna testas först i en simuleringsmiljö. I arbetet används två olikasimuleringsmodeller: en fysikalisk där endast mindre parameterjusteringar görsoch en estimerad black-box modell. Efter att regulatorerna utvärderas i simule-ringsmiljön testas de även på en riktig truck med hjälp av automatisk kodgenere-ring och exekvering på en dedikerad hårdvaruplattform.De konstruerade regulatorerna har olika för- och nackdelar eftersom en är olinjäroch envariabel, P-regulatorn, och en är linjär men flervariabel,mpc:n. P-regulatornhar en mjuk rörelse i alla lägen utan att bli för långsam, till skillnad frånmpc:n.Nackdelen med P-regulatorn, jämfört medmpc:n är att det inte finns någon ga-ranti för att P-regulatorn håller hastighetsbegränsningen sommpc:n gör.P-regulatorns bättre prestanda överväger garantin om att hålla hastighetsbegräns-ningen och därför dras slutsatsen att olinjäriteterna i systemet överväger effekter-na av det faktum att det också är flervariabelt. En annan slutsats är att modell-baserad utveckling och Rapid Control Prototyping gör det möjligt att testa fleraolika idéer på en riktig gaffeltruck utan att spendera för mycket tid på implemen-tationen.
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Terrand-Jeanne, Alexandre. "Régulation des systèmes à paramètres distribués : application au forage". Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1283/document.

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Ce travail porte sur la régulation de la sortie des systèmes aux paramètres distribués. Pour ce faire, un simple contrôleur proportionnel intégral est utilisé, puis la stabilité du système en boucle fermée est démontrée à l'aide d'une fonction de Lyapunov. La principale contribution de ce travail est la construction d'un nouveau type de fonction de Lyapunov qui s'inspire d'une méthode bien connue dans le cadre des systèmes non-linéaires : le forwarding.Dans une première partie, le système est établi avec des opérateurs dont les propriétés sont données dans le cadre des semigroupes, puis la problématique de la régulation par contrôleur P-I est posé. Grâce à cette construction de Lyapunov, on peut répondre à cette problématique sous certaines hypothèses. Le lien est alors fait avec les résultats existants dans ce contexte. Dans la seconde partie, la problématique de la régulation est posée pour un système composé de n × n équations hyperboliques linéaires où l'entrée et la sortie se situent sur les conditions aux frontières des EDPs. Sous certaines hypothèses, le résultat permet de réguler n'importe quel vecteur de sortie composé linéairement des conditions aux frontières du système. Cela généralise de nombreux travaux portant sur les systèmes composés d'équations hyperboliques et l'utilisation de contrôleur P-I. Enfin dans le dernier chapitre, les vibrations mécaniques dans les tiges de forage sont étudiées comme cas d'application. Dans un premier temps, le comportement de solutions issues de différents modèles utilisés pour l'étude de ces déformations est détaillé. Dans un second temps, il est montré que la nouvelle fonctionnelle de Lyapunov permet de prendre en compte des modèles plus complexes et d'obtenir la régulation de la vitesse de la tige au fond du forage en ne mesurant que la vitesse en haut du puits. A la fin du chapitre, de nombreuses simulations numériques viennent illustrer nos résultats théoriques
This monograph is devoted to the output regulation of some distributed parameters systems. To reach this objective, a simply proportional integral controller is implemented. Then the stability of the closed loop is proved using a Lyapunov functional that can be built given a Lyapunov functional for the open-loop system. The main contribution of this work is the method to build the Lyapunov functional, it is inspired by a well-known method in non-linear system theory : the forwarding. In a first part, the system studied is an abstract Cauchy problem and the problematic is stated using semigroup theory. Thanks to the Lyapunov employed, the regulation can be guaranteed providing some assumption on the systems operators. The second part detailed how the output regulation can be obtain for all linear outputs when the system is a n × n systems of linear balance laws in one space dimension. The result is given in the case where inputs and outputs act on the PDE’s boundary conditions and for open-loop stabilizable system. It generalize many contribution in the topic of output regulation for systems of linear balance laws. Last but not least, a part is devoted to the study of mechanicals vibrations in a drill pipe. In a first time, the behavior of the solutions for different kind of models use to model the drill pipe is detailed. Then, it is shown that the new Lyapunov functional allow to take into account complex, infinite dimensional model and to regulate the drill pipe velocity at the bottom of the wellbore by only measuring the surface velocity and with a P-I controller. At the end, some simulations are given that illustrate the result
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Buyukkeles, Umit. "Improved Torque And Speed Control Performance In A Vector-controlled Pwm-vsi Fed Surface-mounted Pmsm Drive With Conventional P-i Controllers". Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614294/index.pdf.

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In this thesis, high performance torque and speed control for a surface-mounted permanent magnet synchronous machine (PMSM) is designed, simulated and implemented. A three-phase two-level pulse width modulation voltage-source inverter (PWM-VSI) with power MOSFETs is used to feed the PMSM. The study has three objectives. The first is to compensate the voltage disturbance caused by nonideal characteristics of the voltage-source inverter (VSI). The second is to decouple the coupled variables in the synchronous reference frame model of the PMSM. The last is to design a load torque estimator in order to increase the disturbance rejection capability of the speed control. The angular acceleration required for load torque estimation is extracted through a Kalman filter from noisy velocity measurements. Proposed methods for improved torque and speed control performance are verified through simulations and experimental tests. The drive system is modeled in Matlab/Simulink, and control algorithms are developed based on this model. The experimental drive system comprises a three-phase VSI and a 385 W surface-mounted PMSM. Control algorithms developed in the study have been implemented in a digital signal processor (DSP) board and tested comprehensively. With the use of the proposed methods, a considerable improvement of torque and speed control performance has been achieved.
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Libros sobre el tema "P controller"

1

Perry, Bill. Where do I know you from Billy P?: A personal memoire. Issaquah, WA: Made for Grace Publishing, 2015.

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New York State Energy Research and Development Authority. Develop and field test Rupprecht & Patashnick (R & P) series-6400 controlled sampling continuous particulate monitor: Final report. Albany, N.Y.]: NYSERDA, 2003.

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Great Britain. Civil Aviation Authority. Analysis of Airprox (P) in the UK: Air Traffic Controllers' Errors report no. 2/97, May 1997 to August 1997. London: Civil Aviation Authority, Ministry of Defence, 1998.

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Solymar, L., D. Walsh y R. R. A. Syms. Principles of semiconductor devices. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198829942.003.0009.

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p–n junctions are examined initially and the potential distribution in the junction region is derived based on Poisson’s equation. Next the operation of the transistor is discussed, both in terms of the physics and of equivalent circuits. Potential distributions in metal–semiconductor junctions are derived and the concept of surface states is introduced. The physics of tunnel junctions is discussed in terms of their band structure. The properties of varactor diodes are described and the possibility of parametric amplification is touched upon. Further devices discussed are field effect transistors, charge-coupled devices, controlled rectifiers, and the Gunn effect. The fabrication of microelectronic circuits is discussed, followed by the more recent but related field of micro-electro-mechanical systems. The discipline of nanoelectronics is introduced including the role of carbon nanotubes. Finally, the effect of the development of semiconductor technology upon society is discussed.
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Capítulos de libros sobre el tema "P controller"

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Jong-Hwan, Beck, Pak Myeong-Suk y Kim Sang-Hoon. "Design of Docking Drone System Using P-PID Flight Controller". En Advances in Computer Science and Ubiquitous Computing, 768–73. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-3023-9_118.

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Durnyak, Bohdan, Mikola Lutskiv, Petro Shepita y Vitalii Nechepurenko. "Simulation of a Combined Robust System with a P-Fuzzy Controller". En Advances in Intelligent Systems and Computing, 570–80. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-26474-1_39.

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Eremenko, Yuri I., Anton I. Glushchenko y Vladislav A. Petrov. "Efficiency Analysis of P-controller Neural Tuner and Adaptive Controller Based on Observer for DC Drive Speed Control Problem". En Advances in Intelligent Systems and Computing, 284–92. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-67349-3_27.

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Zidan, Ahmed, Daniel Kaczor, Svenja Tappe y Tobias Ortmaier. "Optimization of a P/PI Cascade Motion Controller for a 3-DOF Delta Robot". En Tagungsband des 4. Kongresses Montage Handhabung Industrieroboter, 217–26. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-59317-2_22.

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Mondal, Arnab Kumar, Chiborhame Suting y Parthasarathi Bera. "Design of P-I-D Based TCSC Controller for SMIB System Using Artificial Neural Network". En Advances in Communication, Devices and Networking, 777–88. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7901-6_84.

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Mondal, Arnab Kumar y Parthasarathi Bera. "Design of P-I Controller of Wind Turbine with Doubly Fed Induction Generator Using Flower Pollination Algorithm". En Advances in Communication, Devices and Networking, 755–66. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7901-6_82.

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Freund, Rudolf. "Energy–Controlled P Systems". En Membrane Computing, 247–60. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/3-540-36490-0_16.

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Dahbi, Sanae, Abdelhak Aziz, Naima Benazzi, Mohamed Elhafyani y Nourddine Benahmed. "Advanced MPPT Controller Based on P&O Algorithm with Variable Step Size and Acceleration Mechanism for Solar Photovoltaic System". En Lecture Notes in Electrical Engineering, 57–67. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-30298-0_7.

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Domański, Adam, Joanna Domańska, Tadeusz Czachórski, Jerzy Klamka y Jakub Szyguła. "The AQM Dropping Packet Probability Function Based on Non-integer Order $$PI^{\alpha }D^\beta $$ P I α D β Controller". En Lecture Notes in Electrical Engineering, 36–48. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-78458-8_4.

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Buño, Kelvin C. y Henry N. Adorna. "Controlled Rewriting Distributed P Systems". En Proceedings in Information and Communications Technology, 46–61. Tokyo: Springer Japan, 2012. http://dx.doi.org/10.1007/978-4-431-54106-6_5.

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Actas de conferencias sobre el tema "P controller"

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Huba, Mikulas. "Open flexible P-controller design". En 2012 12th IEEE International Workshop on Advanced Motion Control (AMC). IEEE, 2012. http://dx.doi.org/10.1109/amc.2012.6197149.

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Tapak, Peter y Mikulas Huba. "Intelligent P controller and disturbance observer based PI controller comparison". En 2015 20th International Conference on Process Control (PC). IEEE, 2015. http://dx.doi.org/10.1109/pc.2015.7169996.

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Kezic, D., P. Matic y N. Racic. "P - Invariant based Petri net traffic controller". En 2009 17th Mediterranean Conference on Control and Automation (MED). IEEE, 2009. http://dx.doi.org/10.1109/med.2009.5164692.

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Yang, Shuangshou, Chongqing Wu y Zhengyong Li. "Demonstration of piezoelectric-polarization-controller- assisted P-OTDR". En National Fiber Optic Engineers Conference. Washington, D.C.: OSA, 2009. http://dx.doi.org/10.1364/nfoec.2009.jwa79.

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Nema, Swapnil y Prabin Kumar Padhy. "Cuckoo PID-P controller for non-linear process". En 2014 Fourth International Conference on Digital Information and Communication Technology and its Applications (DICTAP). IEEE, 2014. http://dx.doi.org/10.1109/dictap.2014.6821689.

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Bányász, Csilla y László Keviczky. "Decoupling Autopilot MIMO Controller Design". En Artificial Intelligence and Applications / Modelling, Identification, and Control. Calgary,AB,Canada: ACTAPRESS, 2011. http://dx.doi.org/10.2316/p.2011.718-026.

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Zeinali, Meysar. "Learning Controller Design using Fuzzy Modeling, Sliding Mode Control, and PID Controller for Robots". En Power and Energy. Calgary,AB,Canada: ACTAPRESS, 2013. http://dx.doi.org/10.2316/p.2013.807-047.

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Nagarajan, V. S., M. Balaji, V. Kamaraj y B. Seetha. "Comparative analysis of neural and P-I controller for". En 2014 IEEE 2nd International Conference on Electrical Energy Systems (ICEES). IEEE, 2014. http://dx.doi.org/10.1109/icees.2014.6924154.

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Li, Qingchun. "A New PID Fuzzy Controller (Fuzzy P(I+D))". En 2011 International Conference on Information Management, Innovation Management and Industrial Engineering (ICIII). IEEE, 2011. http://dx.doi.org/10.1109/iciii.2011.220.

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Hatti, Mustapha. "Neural Network Controller for P E M Fuel Cells". En 2007 IEEE International Symposium on Industrial Electronics. IEEE, 2007. http://dx.doi.org/10.1109/isie.2007.4375068.

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Informes sobre el tema "P controller"

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Deo, Salil, David McAllister, Naveed Sattar y Jill Pell. The time-varying cardiovascular benefits of glucagon like peptide-1 agonist (GLP-RA)therapy in patients with type 2 diabetes mellitus: A meta-analysis of multinational randomized trials. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, julio de 2021. http://dx.doi.org/10.37766/inplasy2021.7.0097.

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Review question / Objective: P - patients with type 2 diabetes melllitus already receiving routine medical therapy; I - patients receiving glucagon like peptide 1 receptor agonist (GLP1 receptor agonist) therapy (semaglutide, dulaglutide, liraglutide, exenatide, lixisenatide, efpeglenatide, abiglutide); C - patients receiving standard therapy for diabetes mellitus but not receiving GLP1 agonist therapy; O - composite end point as per invididual trial, cardiovascular mortality, all-cause mortality, myocardial infarction, stoke. Condition being studied: Type 2 diabetes mellitus. Study designs to be included: Randomised controlled trials which enroll a large number of patients (defined as > 500) and are multinational in origin. Studies included will need to have published Kaplan and Meier curves for the end-points presented in the manuscript.
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Badami, Kaswan, Budi Setiadi Daryono, Achmad Amzeri y Syaiful Khoiri. COMBINING ABILITY AND HETEROTIC STUDIES ON HYBRID MELON (Cucumis melo L.) POPULATIONS FOR FRUIT YIELD AND QUALITY TRAITS. SABRAO Journal of Breeding and Genetics, octubre de 2020. http://dx.doi.org/10.21107/amzeri.2020.3.

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In different crop plants, combining ability and heterosis are used as important diagnostic tools for assessing the performance of parental genotypes and their hybrids. This research aimed to evaluate heterotic and combining ability effects in the diallel crosses of melon (Cucumis melo L.) for yield- and quality-related traits. Seven melon (C. melo L.) genotypes were grown and crossed in a complete diallel fashion to produce F1 hybrids. During the 2019 crop season, 49 melon genotypes (7 parents + 42 F1 hybrids) were grown in a randomized complete block design with three replications. Observations were made for seven characters. Analysis of variance revealed significant (P ≤ 0.01) differences among the melon genotypes for harvest age, fruit flesh thickness, fruit total soluble solids, fruit length, and fruit diameter and merely significant differences (P ≤ 0.05) for fruit weight. Combining ability analysis revealed that mean squares due to general combining ability (GCA) were significant for fruit diameter but were nonsignificant for all other traits. However, mean squares due to specific combining ability (SCA) were significant for all traits. The parental genotypes PK-165, PK-464, and PK-669 exhibited the highest and desirable GCA effects for yield and quality traits. Hence, these genotypes could be used to generate high-yielding hybrid/open-pollinated cultivars. GCA:SCA ratios further revealed that the traits of harvest age, fruit flesh thickness, fruit total soluble solids, fruit length, and fruit weight were controlled by dominant gene action, whereas fruit diameter was managed by additive and dominant genes. The majority of the traits were controlled by nonadditive gene action, verifying that the said breeding material could be efficiently used for the production of hybrid cultivars on the basis of heterotic effects.
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McPhedran, R., K. Patel, B. Toombs, P. Menon, M. Patel, J. Disson, K. Porter, A. John y A. Rayner. Food allergen communication in businesses feasibility trial. Food Standards Agency, marzo de 2021. http://dx.doi.org/10.46756/sci.fsa.tpf160.

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Background: Clear allergen communication in food business operators (FBOs) has been shown to have a positive impact on customers’ perceptions of businesses (Barnett et al., 2013). However, the precise size and nature of this effect is not known: there is a paucity of quantitative evidence in this area, particularly in the form of randomised controlled trials (RCTs). The Food Standards Agency (FSA), in collaboration with Kantar’s Behavioural Practice, conducted a feasibility trial to investigate whether a randomised cluster trial – involving the proactive communication of allergen information at the point of sale in FBOs – is feasible in the United Kingdom (UK). Objectives: The trial sought to establish: ease of recruitments of businesses into trials; customer response rates for in-store outcome surveys; fidelity of intervention delivery by FBO staff; sensitivity of outcome survey measures to change; and appropriateness of the chosen analytical approach. Method: Following a recruitment phase – in which one of fourteen multinational FBOs was successfully recruited – the execution of the feasibility trial involved a quasi-randomised matched-pairs clustered experiment. Each of the FBO’s ten participating branches underwent pair-wise matching, with similarity of branches judged according to four criteria: Food Hygiene Rating Scheme (FHRS) score, average weekly footfall, number of staff and customer satisfaction rating. The allocation ratio for this trial was 1:1: one branch in each pair was assigned to the treatment group by a representative from the FBO, while the other continued to operate in accordance with their standard operating procedure. As a business-based feasibility trial, customers at participating branches throughout the fieldwork period were automatically enrolled in the trial. The trial was single-blind: customers at treatment branches were not aware that they were receiving an intervention. All customers who visited participating branches throughout the fieldwork period were asked to complete a short in-store survey on a tablet affixed in branches. This survey contained four outcome measures which operationalised customers’: perceptions of food safety in the FBO; trust in the FBO; self-reported confidence to ask for allergen information in future visits; and overall satisfaction with their visit. Results: Fieldwork was conducted from the 3 – 20 March 2020, with cessation occurring prematurely due to the closure of outlets following the proliferation of COVID-19. n=177 participants took part in the trial across the ten branches; however, response rates (which ranged between 0.1 - 0.8%) were likely also adversely affected by COVID-19. Intervention fidelity was an issue in this study: while compliance with delivery of the intervention was relatively high in treatment branches (78.9%), erroneous delivery in control branches was also common (46.2%). Survey data were analysed using random-intercept multilevel linear regression models (due to the nesting of customers within branches). Despite the trial’s modest sample size, there was some evidence to suggest that the intervention had a positive effect for those suffering from allergies/intolerances for the ‘trust’ (β = 1.288, p<0.01) and ‘satisfaction’ (β = 0.945, p<0.01) outcome variables. Due to singularity within the fitted linear models, hierarchical Bayes models were used to corroborate the size of these interactions. Conclusions: The results of this trial suggest that a fully powered clustered RCT would likely be feasible in the UK. In this case, the primary challenge in the execution of the trial was the recruitment of FBOs: despite high levels of initial interest from four chains, only one took part. However, it is likely that the proliferation of COVID-19 adversely impacted chain participation – two other FBOs withdrew during branch eligibility assessment and selection, citing COVID-19 as a barrier. COVID-19 also likely lowered the on-site survey response rate: a significant negative Pearson correlation was observed between daily survey completions and COVID-19 cases in the UK, highlighting a likely relationship between the two. Limitations: The trial was quasi-random: selection of branches, pair matching and allocation to treatment/control groups were not systematically conducted. These processes were undertaken by a representative from the FBO’s Safety and Quality Assurance team (with oversight from Kantar representatives on pair matching), as a result of the chain’s internal operational restrictions.
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Roschelle, Jeremy, Britte Haugan Cheng, Nicola Hodkowski, Julie Neisler y Lina Haldar. Evaluation of an Online Tutoring Program in Elementary Mathematics. Digital Promise, abril de 2020. http://dx.doi.org/10.51388/20.500.12265/94.

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Many students struggle with mathematics in late elementary school, particularly on the topic of fractions. In a best evidence syntheses of research on increasing achievement in elementary school mathematics, Pelligrini et al. (2018) highlighted tutoring as a way to help students. Online tutoring is attractive because costs may be lower and logistics easier than with face-to-face tutoring. Cignition developed an approach that combines online 1:1 tutoring with a fractions game, called FogStone Isle. The game provides students with additional learning opportunities and provides tutors with information that they can use to plan tutoring sessions. A randomized controlled trial investigated the research question: Do students who participate in online tutoring and a related mathematical game learn more about fractions than students who only have access to the game? Participants were 144 students from four schools, all serving low-income students with low prior mathematics achievement. In the Treatment condition, students received 20-25 minute tutoring sessions twice per week for an average of 18 sessions and also played the FogStone Isle game. In the Control condition, students had access to the game, but did not play it often. Control students did not receive tutoring. Students were randomly assigned to condition after being matched on pre-test scores. The same diagnostic assessment was used as a pre-test and as a post-test. The planned analysis looked for differences in gain scores ( post-test minus pre-test scores) between conditions. We conducted a t-test on the aggregate gain scores, comparing conditions; the results were statistically significant (t = 4.0545, df = 132.66, p-value < .001). To determine an effect size, we treated each site as a study in a meta-analysis. Using gain scores, the effect size was g=+.66. A more sophisticated treatment of the pooled standard deviation resulted in a corrected effect size of g=.46 with a 95% confidence interval of [+.23,+.70]. Students who received online tutoring and played the related Fog Stone Isle game learned more; our research found the approach to be efficacious. The Pelligrini et al. (2018) meta-analysis of elementary math tutoring programs found g = .26 and was based largely on face-to-face tutoring studies. Thus, this study compares favorably to prior research on face-to-face mathematics tutoring with elementary students. Limitations are discussed; in particular, this is an initial study of an intervention under development. Effects could increase or decrease as development continues and the program scales. Although this study was planned long before the current pandemic, results are particularly timely now that many students are at home under shelter-in-place orders due to COVID-19. The approach taken here is feasible for students at home, with tutors supporting them from a distance. It is also feasible in many other situations where equity could be addressed directly by supporting students via online tutors.
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