Academic literature on the topic 'Lambda-control'

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Journal articles on the topic "Lambda-control"

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Erneux, Thomas, Edward L. Reiss, J. F. Magnan, and P. K. Jayakumar. "Nonlinear Stability Control and $\lambda $-Bifurcation." SIAM Journal on Applied Mathematics 47, no. 6 (December 1987): 1163–76. http://dx.doi.org/10.1137/0147078.

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Shea, Madeline A., and Gary K. Ackers. "The OR control system of bacteriophage lambda." Journal of Molecular Biology 181, no. 2 (January 1985): 211–30. http://dx.doi.org/10.1016/0022-2836(85)90086-5.

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Wong, Hang-cheong, Pak-kin Wong, and Chi-man Vong. "Model Predictive Engine Air-Ratio Control Using Online Sequential Relevance Vector Machine." Journal of Control Science and Engineering 2012 (2012): 1–15. http://dx.doi.org/10.1155/2012/731825.

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Engine power, brake-specific fuel consumption, and emissions relate closely to air ratio (i.e., lambda) among all the engine variables. An accurate and adaptive model for lambda prediction is essential to effective lambda control for long term. This paper utilizes an emerging technique, relevance vector machine (RVM), to build a reliable time-dependent lambda model which can be continually updated whenever a sample is added to, or removed from, the estimated lambda model. The paper also presents a new model predictive control (MPC) algorithm for air-ratio regulation based on RVM. This study shows that the accuracy, training, and updating time of the RVM model are superior to the latest modelling methods, such as diagonal recurrent neural network (DRNN) and decremental least-squares support vector machine (DLSSVM). Moreover, the control algorithm has been implemented on a real car to test. Experimental results reveal that the control performance of the proposed relevance vector machine model predictive controller (RVMMPC) is also superior to DRNNMPC, support vector machine-based MPC, and conventional proportional-integral (PI) controller in production cars. Therefore, the proposed RVMMPC is a promising scheme to replace conventional PI controller for engine air-ratio control.
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MAHAFFY, J. "A genetic switch: Gene control and phage lambda." Bulletin of Mathematical Biology 49, no. 6 (1987): 763–64. http://dx.doi.org/10.1016/s0092-8240(87)90021-8.

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Auckly, David, and Lev Kapitanski. "On the $\lambda$-Equations for Matching Control Laws." SIAM Journal on Control and Optimization 41, no. 5 (January 2002): 1372–88. http://dx.doi.org/10.1137/s0363012901393304.

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Bushman, W., J. Thompson, L. Vargas, and A. Landy. "Control of directionality in lambda site specific recombination." Science 230, no. 4728 (November 22, 1985): 906–11. http://dx.doi.org/10.1126/science.2932798.

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Das, Nandini. "Performance of control chart using generalised lambda distribution." International Journal of Productivity and Quality Management 10, no. 4 (2012): 411. http://dx.doi.org/10.1504/ijpqm.2012.049631.

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Jurisic, Aleksandar D., Aleksandra P. Petrovic, Dragana V. Rajkovic, and Slobodan Dj Nicin. "The application of lambda-cyhalothrin in tick control." Experimental and Applied Acarology 52, no. 1 (March 23, 2010): 101–9. http://dx.doi.org/10.1007/s10493-010-9346-z.

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Pankey, Joseph H., James L. Griffin, B. Rogers Leonard, Donnie K. Miller, Robert G. Downer, and Richard W. Costello. "Glyphosate–Insecticide Combination Effects on Weed and Insect Control in Cotton." Weed Technology 18, no. 3 (September 2004): 698–703. http://dx.doi.org/10.1614/wt-03-153.

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Field studies were conducted to evaluate weed control with combinations of glyphosate at 750 g ae/ha and the insecticides acephate (370 g ai/ha), dicrotophos (370 g ai/ha), dimethoate (220 g ai/ha), fipronil (56 g ai/ha), imidacloprid (53 g ai/ha), lambda-cyhalothrin (37 g ai/ha), oxamyl (280 g ai/ha), or endosulfan (420 g ai/ha) and insect control with coapplication of the herbicide with insecticides acephate, dicrotophos, dimethoate, and imidacloprid. Applying lambda-cyhalothrin or fipronil with glyphosate reduced control of hemp sesbania by 19 and 9 percentage points, respectively, compared with glyphosate alone. Acephate, dicrotophos, dimethoate, imidacloprid, lambda-cyhalothrin, oxamyl, and endosulfan did not affect hemp sesbania, pitted morningglory, prickly sida, and redweed control by glyphosate. Lambda-cyhalothrin and fipronil did not affect glyphosate control of weeds other than hemp sesbania. Addition of glyphosate to dicrotophos improved cotton aphid control 4 d after treatment compared with dicrotophos alone. Thrips control was improved with addition of glyphosate to imidacloprid. Insect control was not reduced by glyphosate regardless of insecticide.
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Wong, Pak Kin, Hang Cheong Wong, Chi Man Vong, Tong Meng Iong, Ka In Wong, and Xianghui Gao. "Fault Tolerance Automotive Air-Ratio Control Using Extreme Learning Machine Model Predictive Controller." Mathematical Problems in Engineering 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/317142.

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Effective air-ratio control is desirable to maintain the best engine performance. However, traditional air-ratio control assumes the lambda sensor located at the tail pipe works properly and relies strongly on the air-ratio feedback signal measured by the lambda sensor. When the sensor is warming up during cold start or under failure, the traditional air-ratio control no longer works. To address this issue, this paper utilizes an advanced modelling technique, kernel extreme learning machine (ELM), to build a backup air-ratio model. With the prediction from the model, a limited air-ratio control performance can be maintained even when the lambda sensor does not work. Such strategy is realized as fault tolerance control. In order to verify the effectiveness of the proposed fault tolerance air-ratio control strategy, a model predictive control scheme is constructed based on the kernel ELM backup air-ratio model and implemented on a real engine. Experimental results show that the proposed controller can regulate the air-ratio to specific target values within a satisfactory tolerance under external disturbance and the absence of air-ratio feedback signal from the lambda sensor. This implies that the proposed fault tolerance air-ratio control is a promising scheme to maintain air-ratio control performance when the lambda sensor is under failure or warming up.
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Dissertations / Theses on the topic "Lambda-control"

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Berndtsson, Magnus. "Fault detection in lambda-tuned control loops." Licentiate thesis, Luleå : Luleå University of Technology, 2006. http://epubl.ltu.se/1402-1757/2006/47/LTU-LIC-0647-SE.pdf.

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Singh, Pooja. "Quantum Coherent Control and Propagation in Lambda System." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849750/.

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Strong coherence in quasi-resonant laser driven system interferes with effective relaxations, resulting in behaviors like, coherent population trapping and Electromagnetically induced transparency. The Raman system can optimize this utilizing excited coherence in the lambda system when exposed to counter- intuitive pump-stokes pulses. The phenomenon can result in complete population transfer between vibrational levels called Stimulated Raman adiabatic passage(STIRAP). STIRAP and CHIRAP have been studied with Gaussian and chirped pulses. The optical propagation effects in dense medium for these phenomenon is studied to calculate the limitations and induced coherences. Further, the effect of rotational levels has been investigated. The molecular vibrational coherence strongly depends on the effect of rotational levels. The change in coherence interaction for ro-vibrational levels are reported and explained. We have considered the effects on the phase of radiation related to rotational mechanical motion of quantum system by taking advantages in ultra strong dispersion medium provided by quantum coherence in lambda system. The enhanced Fizeau effect on a single atom is observed.
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Jelena, Ivetić. "Intesection types and resource control in the intuitionistic sequent lambda calculus." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2013. http://dx.doi.org/10.2298/NS20131009IVETIC.

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This thesis studies computational interpretations of the intuitionistic sequentcalculus with implicit and explicit structural rules, with focus on the systemswith intersection types. The contributions of the thesis are grouped into threeparts. In the first part intersection types are introduced into the lambdaGentzen calculus. The second part presents an extension of the lambdaGentzen calculus to a term calculus with resource control, i.e. with explicitoperators for contraction and weakening, and apropriate intersection typeassignment system which characterises strong normalisation in the proposedcalculus. In the third part both previously studied calculi are integrated intoone framework by introducing the notion of the resource control cube.
Ова дисертација се бави рачунским интерпретацијамаинтуиционистичког секвентног рачуна са имплицитним и експлицитнимструктурним правилима, са фокусом на типске системе са пресеком.Оригинални резултати тезе су груписани у три целине. У првом делу сутипови са пресеком уведени у lambda Gentzen рачун. Други деопредставља проширење lambda Gentzen рачуна на формални рачун саконтролом ресурса, тј. са експлицитним операторима контракције ислабљења, као и одговарајући типски систем са пресеком којикарактерише јаку нормализацију у уведеном рачуну. У трећем делу обарачуна су интегрисана у заједнички оквир увођењем структуре resourcecontrol cube.
Ova disertacija se bavi računskim interpretacijamaintuicionističkog sekventnog računa sa implicitnim i eksplicitnimstrukturnim pravilima, sa fokusom na tipske sisteme sa presekom.Originalni rezultati teze su grupisani u tri celine. U prvom delu sutipovi sa presekom uvedeni u lambda Gentzen račun. Drugi deopredstavlja proširenje lambda Gentzen računa na formalni račun sakontrolom resursa, tj. sa eksplicitnim operatorima kontrakcije islabljenja, kao i odgovarajući tipski sistem sa presekom kojikarakteriše jaku normalizaciju u uvedenom računu. U trećem delu obaračuna su integrisana u zajednički okvir uvođenjem strukture resourcecontrol cube.
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Åkerblom, Hampus, and Roberth Tennesmed. "Lambdareglering : Installation av lambdareglering på pelletsbrännare." Thesis, Linnéuniversitetet, Sjöfartshögskolan (SJÖ), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-90266.

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I Sverige finns det mycket skog att tillgå och en del av skogen används som energikälla för uppvärmning av hus. Många hus värms upp av pelletspannor och det finns många omoderna pelletspannor runt om i Sverige. Denna rapport syftar till att bygga om en pelletspanna av modell Ariterm PX21 från år 2009 med hjälp av lambdareglering.Brännaren idag har ingen teknik som kontrollerar förbränningen. Syftet med lambdaregleringen är att en lambdasond, som ska styra matarskruven till pelletsbrännaren, ska installeras och därmed styra förbränningen. Frågeställningen för arbetet är om en installation av lambdareglering förbättrar förbränningen och i sådana fall hur lång tid det tar innan investeringen lönar sig.En lambdasond installerades på rökröret och två Arduinos programmerades och installerades tillsammans med ett relä som är kopplat till matarskruvens strömförsörjning. Mätningar av avgaserna har genomförts både före och efter installationen och en förbättring på värdena NO, NOx och CO2 uppmättes vid lambdareglering. Vidare förbättrades verkningsgraden och bränsleförbrukningen. Förbränningen kan därmed antas vara mer fullständig med lambdareglering jämfört med utan. Efter inköpskostnaderna för installationen och besparingarna på pellets är installationen intjänad på en säsong.
There is a vast amount of forest in Sweden and parts of that is used as an energy source to heat up homes. Many homes are heated with pellet burners and some of these are old and inefficient. The purpose of this report is to rebuild a 2009 Ariterm PX21 pellet burner by installing a lambda controller.Currently, the burner has no built-in technique that controls the combustion. The purpose of the lambda controller is to control the pellet feeder to the burner with a lambda transmitter and by that control the combustion. The report aims to answer if that installation will improve the combustion and how long it will take until the investment is profitable.A lambda transmitter has been installed on the funnel and two Arduinos has been programmed and installed together with a relay connected to the feeder’s electrical supply. Exhaust measurements have been performed both before and after the installations. There was an improvement on NO, NOx, and CO2 after the installation. There was also an improvement of the efficiency and fuel consumption. Therefore, the installation of a lambda controller can be considered to improve the combustion. With the expenses made and the savings on pellet consumption, the installation will be profitable within one season.
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Steiner, Mathias. "Control of molecular spontaneous emission in an optical l/2-microresonator [lambda/2-microresonator]." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=981816126.

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Höglund, Filip. "Knock Detection in a Two-Stroke Engine to be Used in the Engine Management System." Thesis, Linköpings universitet, Fordonssystem, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-104681.

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Engine knock has long been a well recognized phenomenon in the automotive industry. Detecting engine knock opens up the possibility for an indirect feedback of the engine's internal combustion without installing a pressure transducer inside the cylinder. Knock detection has mainly been used for spark advance control, making it possible to control the engine close to its knock limit in search for the optimal ignition timing. This application has to a lesser extent been applied to lightweight two-stroke engines, which is the focus of this study. The investigation features a modern chainsaw engine whose knock characteristics were first determined with a pressure transducer. The structural vibrations originating from the engine knock are filtered out of the signal from a remote located accelerometer. The knock intensity is compared with the signal from the pressure transducer which shows a correlation with an accepted extent between the two sensors. Parameters that affect the knock intensity have also been investigated. These include engine temperature, different types of fuel and ignition timings.
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Toema, Mohamed Ahmed. "Physics-based characterization of lambda sensor output to control emissions from natural gas fueled engines." Diss., Kansas State University, 2010. http://hdl.handle.net/2097/6697.

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Doctor of Philosophy
Department of Mechanical and Nuclear Engineering
Kirby S. Chapman
The increasingly strict air emission regulations may require implementing Non-Selective Catalytic Reduction (NSCR) systems as a promising emission control technology for stationary rich burn spark ignition engines. Many recent experimental investigations that used NSCR systems for stationary natural gas fueled engines showed that NSCR systems were unable to consistently control the exhaust emissions level below the compliance limits. Part of this thesis is devoted to show the results from the field testing of three engines working in natural gas gathering stations located in the “Four Corners” area. These three engines are retrofitted with NSCR systems. Emissions and engine operating data were monitored for more than one year. Data collected from October 2007 through December 2008 shows significant variation in emissions levels over hours, days, and longer periods of time, as well as seasonal variations. As a result of these variations, simultaneous control of NOx and CO below the compliance limit was achieved less than fifty percent of the monitored time. Modeling of NSCR components to better understand, and then exploit, the underlying physical processes that occur in the lambda sensor and the catalyst media is now considered an essential step toward improving NSCR system performance. The second portion of this thesis focuses on modeling the lambda sensor that provides feedback to the air-to-fuel ratio controller. Correct interpretation of the sensor output signal is necessary to achieve consistently low emissions level. The goal of this modeling study is to improve the understanding of the physical processes that occur within the sensor, investigate the cross-sensitivity of various exhaust gas species on the sensor performance, and finally this model serves as a tool to improve NSCR control strategies. This model simulates the output from a planar switch type lambda sensor. The model consists of three modules. The first module models the multi-component mass transport through the sensor protective layer. Diffusion fluxes are calculated using the Maxwell-Stefan equation. The second module includes all the surface catalytic reactions that take place on the sensor platinum electrodes. All kinetic reactions are modeled based on the Langmuir-Hinshelwood kinetic mechanism. The third module is responsible for simulating the reactions that occur on the electrolyte material and determine the sensor output voltage. The details of these three modules as well as a parametric study that investigates the sensitivity of the output voltage signal to various exhaust gas parameters is provided in the thesis.
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Lindell, Tobias. "Model-based Air and Fuel Path Control of a VCR Engine." Thesis, Linköping University, Department of Electrical Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-52468.

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The objective of the work was to develop a basic control system for an advancedexperimental engine from scratch. The engine this work revolves around is a Saabvariable compression engine.A new control system is developed based on the naked engine, stripped of theoriginal control system. Experiments form the basis that the control system isbuilt upon. Controllers for throttles, intake manifold pressure for pressures lessthan ambient pressure and exhaust gas oxygen ratio are developed and validated.They were found to be satisfactory. The lambda controller is tested with severalparameter sets, and the best set is picked to be implemented in the engine. Modelsnecessary for the development and validation of the controllers are developed.These models include models for the volumetric efficiency, the pressure dynamicsof the intake manifold, the fuel injectors and wall wetting.

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Irman, Svraka, and Österdahl Wetterhag Linus. "Model Based Catalyst Control." Thesis, Linköpings universitet, Fordonssystem, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-158634.

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A one dimensional discretized model of a two brick three way catalyst (TWC) system was developed and implemented in MATLAB, Simulink and TargetLink in collaboration with Volvo Cars and Linköpings Universitet - ISY. The purpose of this thesis was to increase system understanding and create a model based TWC control for further development at Volvo Cars. A total of 50 states were modelled, including emission concentrations (O2, CO, C3H6, C3H8, H2, NOx, CO2, H2O), temperature and oxygen buffer level (OBL). A model based control structure was implemented in the form of five separate PID-controllers enabling possibilities to control the OBL of each separate slice of each brick individually and through simple reference handling. The control structures includes anti-windup, feedforward control and feedback safety for model reset during sensor indication of leakage. Specific equipment and software used included MATLAB, Simulink, TargetLink, Volvo SULEV30 TWC and testing rigs. Overall increase in system understanding was achieved in comparison with contemporary TWC modelling and control, as well as sufficient system performance in regard to estimate emissions, simulation duration and pedagogical value. Concluding thoughts of the thesis revolve the complexity of the actual TWC modelling, parameter estimation as well as control. The model presented in this thesis has great potential of describing TWC systems but with great effort during parameter estimation. With ECU performance available in temporary vehicle production year 2019, a complex model may be combined with a simple control strategy whilst a simple model may be combined with a complex control strategy.
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Rosén, Anna. "Air/Fuel Ratio Control of an SI-Engine Under Normal Operation Conditions." Thesis, Linköping University, Department of Electrical Engineering, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2448.

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Emission from cars today is one of the biggest environmental issues, hence stringent government standards have been introduced to decrease emission. Car companies do not only have to satisfy government standards, but also meet consumer demands on increased fuel economy and good drivablility. This report will introduce controllers designed to control the air/fuel ratio in an SI engine. The engine model used is simplified. The engine components modelled include the inlet manifold, fuel dynamics, combustion and exhaust sensor.

Nonlinearities and delays are inherent in the engine dynamics and as such a Smith Predictor is utilised as the basis for controller structure to compensate for the delays. Here the Smith Predictor is combined with feedforwarding of the mass air charge, which is estimated from both the inlet and combustion models. Therefore different ways of merging the estimates are also explored.

A real engine was not accesible, thus simulators were implemented using data sets provided by General Motors. Model errors were introduced to test the controllers performance. The proposed methods should be tested on a real engine to ensure that this isa viable approach, as the simulations show it maybe promising to use in practice.

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Books on the topic "Lambda-control"

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Ptashne, Mark. A genetic switch: Gene control and phage(lambda). Cambridge, Ma: Cell, 1987.

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Ptashne, Mark. A genetic switch: Gene control and phage [lambda]. Cambridge, Mass: Cell Press, 1987.

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GmbH, Robert Bosch. L-Jetronic: Electronic gasoline fuel-injection system with Lambda closed-loop control. 2nd ed. Stuttgart: Bosch, 1985.

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A genetic switch: Gene control and phage [lamda]. Palo Alta., Calif: Cell Press & Blackwell Scientific Publications, 1986.

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Nakov, Svetlin. Fundamentals of Computer Programming with C#: The Bulgarian C# Book. Sofia, Bulgaria: Svetlin Nakov, 2013.

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GmbH, Robert Bosch. Electronic gasoline fuel injection system with Lambda closed loop control L-Jetronic. 2nd ed. Bosch, 1985.

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GmbH, Robert Bosch. Electronically controlled gasoline fuel-injection system with Lambda closed-loop control: Mono-Jetronic. Robert Bosch GmbH, 1991.

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GmbH, Robert Bosch. Electronically controlled gasoline fuel-injection system with Lambda closed-loop control: KE-Jetronic. Bosch, 1985.

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Ptashne, Mark. A Genetic Switch: Gene Control and Phage. Blackwell Science Inc, 1986.

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Book chapters on the topic "Lambda-control"

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Gros, François, Nat Sternberg, Marcel Bouquet, and Philippe Kourilsky. "Lambda Control Systems." In Ciba Foundation Symposium - Strategy of the Viral Genome, 207–28. Chichester, UK: John Wiley & Sons, Ltd., 2008. http://dx.doi.org/10.1002/9780470719824.ch13.

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Hackl, Christoph M. "Adaptive $$\lambda $$ -Tracking Control." In Non-identifier Based Adaptive Control in Mechatronics, 169–215. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-55036-7_8.

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Schwichtenberg, Helmut. "Proofs, Lambda Terms and Control Operators." In Logic of Computation, 309–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-59048-1_9.

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Hida, Haruzo. "Control of $$\Lambda $$ -adic Mordell–Weil Groups." In Springer Proceedings in Mathematics & Statistics, 253–94. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45032-2_7.

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Ghilezan, Silvia, Jelena Ivetić, Pierre Lescanne, and Silvia Likavec. "Intersection Types for the Resource Control Lambda Calculi." In Theoretical Aspects of Computing – ICTAC 2011, 116–34. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23283-1_10.

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Oppenheim, Amos B., Shoshy Altuvia, Daniel Kornitzer, and Dinah Teff. "Translational Control of the cIII Gene of Bacteriophage Lambda." In Post-Transcriptional Control of Gene Expression, 277–84. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75139-4_26.

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Selinger, Peter, and Benoît Valiron. "A Lambda Calculus for Quantum Computation with Classical Control." In Lecture Notes in Computer Science, 354–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11417170_26.

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Xu, Jialing, Guowei Teng, Guozhong Wang, and Zhenglong Yang. "A Novel R- $$\lambda $$ Rate Control Algorithm for HEVC." In Digital TV and Multimedia Communication, 359–68. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8138-6_30.

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Chandra, Sharad, and Sheelam Misra. "Emission Control System Using Lambda Sensors and Application in Soil Respiration." In Lecture Notes in Mechanical Engineering, 855–64. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6577-5_83.

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Abdel-Hameed, Mohamed. "Storage Models: Control of Dams Using P $$_{\lambda ,\tau }^{M}$$ Policies." In Lévy Processes and Their Applications in Reliability and Storage, 77–108. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-40075-9_3.

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Conference papers on the topic "Lambda-control"

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Takubo, Hideki, Takahiro Umeno, and Hideki Goto. "New Lambda - Lambda Air-Fuel Ratio Feedback Control." In SAE World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2007. http://dx.doi.org/10.4271/2007-01-1340.

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Jensen, Per B., Mads B. Olsen, Jannik Poulsen, Christian Vigild, and Elbert Hendricks. "Wideband SI Engine Lambda Control." In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1998. http://dx.doi.org/10.4271/981065.

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Moos, Ralf, Matthias Spörl, Gunter Hagen, Andreas Gollwitzer, Marion Wedemann, and Gerhard Fischerauer. "TWC: Lambda Control and OBD without Lambda Probe - An Initial Approach." In SAE World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2008. http://dx.doi.org/10.4271/2008-01-0916.

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Allgower, F., and A. Ilchmann. "Process control applications of adaptive /spl lambda/-tracking." In Proceedings of 16th American CONTROL Conference. IEEE, 1997. http://dx.doi.org/10.1109/acc.1997.611898.

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Rovai, Fernando Fusco. "Downstream Lambda Sensor Control Optimized to Fuel Blend." In 2008 SAE Brasil Congress and Exhibit. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2008. http://dx.doi.org/10.4271/2008-36-0082.

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Sainio, Joose, Alexandre Mercat, and Jarno Vanne. "Parallel Implementations of Lambda Domain and R-Lambda Model Rate Control Schemes in a Practical HEVC Encoder." In 2021 Data Compression Conference (DCC). IEEE, 2021. http://dx.doi.org/10.1109/dcc50243.2021.00089.

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7

Gattoni, John M., and Daniel B. Olsen. "Development of a NOx Sensor Minimization Control Algorithm for Control of Gas Engines With NSCR." In ASME 2013 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icef2013-19158.

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Abstract:
High exhaust emissions reduction efficiencies from a spark ignited (SI) internal combustion engine utilizing a Non Selective Catalyst Reduction (NSCR) catalyst system require complex fuel control strategies. The allowable equivalence ratio (Φ) operating range is very narrow where NSCR systems achieve high exhaust emission reduction efficiencies of multiple species. Current fuel control technologies utilizing lambda sensor feedback for natural gas spark ignited engines are reported to be unable to sustain these demands for extended operation periods and when transients are introduced. Lambda sensor accuracy is the critical issue with current fuel controllers. The goal of this project was to develop a minimization control algorithm utilizing an oxides of nitrogen (NOx) sensor installed downstream of the NSCR catalyst system for feedback air/fuel ratio control. Testing was performed on a 100kW rated natural gas Cummins-Onan generator set that was reconfigured to operate utilizing an electronic gas carburetor (EGC2) with lambda sensor feedback and high reduction efficiency NSCR catalyst system. The control algorithm was programmed utilizing a Labview interface that communicated with the electronic gas carburetor where the fuel trim adjustment was physically made. Improvement under steady state operation was observed. The system was also evaluated during load and fuel composition transients.
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Kim, Young Ki, M. Reza HoseinyFarahabady, Young Choon Lee, Albert Y. Zomaya, and Raja Jurdak. "Dynamic Control of CPU Usage in a Lambda Platform." In 2018 IEEE International Conference on Cluster Computing (CLUSTER). IEEE, 2018. http://dx.doi.org/10.1109/cluster.2018.00041.

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9

Fu, Siqi, Yao Sun, Zhangjie Liu, Hua Han, and Mei Su. "An Improved $\lambda$-consensus Control Method for DC Microgrids." In 2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe). IEEE, 2020. http://dx.doi.org/10.23919/epe20ecceeurope43536.2020.9215681.

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10

Paul, Michael, and Martin Rein. "Transonic Numerical and Experimental Investigation into Unconventional Lambda Wing Control Surfaces." In 54th AIAA Aerospace Sciences Meeting. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-0799.

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