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Journal articles on the topic 'Lambda-control'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

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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2

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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3

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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4

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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5

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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6

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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7

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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8

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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9

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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10

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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11

Wong, P.-K., H.-C. Wong, and C.-M. Vong. "Online time-sequence incremental and decremental least squares support vector machines for engine air-ratio prediction." International Journal of Engine Research 13, no. 1 (November 7, 2011): 28–40. http://dx.doi.org/10.1177/1468087411420280.

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Fuel efficiency and pollution reduction relate closely to air-ratio (i.e. lambda) control among all the engine control variables. Lambda indicates the amount that the actual available air-fuel ratio mixture differs from the stoichiometric air-fuel ratio of the fuel being used. Accurate lambda prediction is essential for effective lambda control. This paper employs an emerging online time-sequence incremental algorithm and proposes one novel online time-sequence decremental algorithm based on least squares support vector machines (LS-SVMs) to continually update the built LS-SVM lambda function whenever a sample is added to, or removed from, the training dataset. Moreover, the online time-sequence algorithm can also significantly shorten the function updating time as compared with function retraining from scratch. In order to evaluate the effectiveness of this pair of online time-sequence algorithms, three lambda time series obtained from experiments under different operating conditions are employed. The prediction results of the online time-sequence algorithms over unseen cases are compared with those under classical LS-SVMs, typical decremental LS-SVMs, and neural networks. Experimental results show that the online time-sequence incremental and decremental LS-SVMs are superior to the other three typical methods.

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12

Xu, X., H. He, and D. Hu. "Efficient Reinforcement Learning Using Recursive Least-Squares Methods." Journal of Artificial Intelligence Research 16 (April 1, 2002): 259–92. http://dx.doi.org/10.1613/jair.946.

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The recursive least-squares (RLS) algorithm is one of the most well-known algorithms used in adaptive filtering, system identification and adaptive control. Its popularity is mainly due to its fast convergence speed, which is considered to be optimal in practice. In this paper, RLS methods are used to solve reinforcement learning problems, where two new reinforcement learning algorithms using linear value function approximators are proposed and analyzed. The two algorithms are called RLS-TD(lambda) and Fast-AHC (Fast Adaptive Heuristic Critic), respectively. RLS-TD(lambda) can be viewed as the extension of RLS-TD(0) from lambda=0 to general lambda within interval [0,1], so it is a multi-step temporal-difference (TD) learning algorithm using RLS methods. The convergence with probability one and the limit of convergence of RLS-TD(lambda) are proved for ergodic Markov chains. Compared to the existing LS-TD(lambda) algorithm, RLS-TD(lambda) has advantages in computation and is more suitable for online learning. The effectiveness of RLS-TD(lambda) is analyzed and verified by learning prediction experiments of Markov chains with a wide range of parameter settings. The Fast-AHC algorithm is derived by applying the proposed RLS-TD(lambda) algorithm in the critic network of the adaptive heuristic critic method. Unlike conventional AHC algorithm, Fast-AHC makes use of RLS methods to improve the learning-prediction efficiency in the critic. Learning control experiments of the cart-pole balancing and the acrobot swing-up problems are conducted to compare the data efficiency of Fast-AHC with conventional AHC. From the experimental results, it is shown that the data efficiency of learning control can also be improved by using RLS methods in the learning-prediction process of the critic. The performance of Fast-AHC is also compared with that of the AHC method using LS-TD(lambda). Furthermore, it is demonstrated in the experiments that different initial values of the variance matrix in RLS-TD(lambda) are required to get better performance not only in learning prediction but also in learning control. The experimental results are analyzed based on the existing theoretical work on the transient phase of forgetting factor RLS methods.

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13

Jiang, Yongxing, Cason E. Bartz, and Justin K. Baker. "Efficacy of Residual Pesticide–Treated Plant Saucers Against Aedes albopictus Larvae Under Semi–Field and Field Conditions." Journal of the American Mosquito Control Association 36, no. 2 (June 1, 2020): 123–26. http://dx.doi.org/10.2987/20-6932.1.

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ABSTRACT Plant saucers are ubiquitous, outdoor water-holding receptacles and are one of the most productive domestic mosquito habitats in the urban environment. Two kinds of commonly used plant saucers, clay and plastic, were manually treated with 3 residual insecticides, bifenthrin (Talstar® Professional), lambda-cyhalothrin (Lambda 9.7 CS), and tau-fluvalinate (Mavrik® Perimeter), at their maximum rates to assess their residual efficacy against Aedes albopictus larvae under semi–field and field conditions. Both clay and plastic saucers treated with bifenthrin and lambda-cyhalothrin provided weeks of control of 3rd instars of Ae. albopictus, whereas tau-fluvalinate provided only 1 day of control. Results from this study show that bifenthrin and lambda-cyhalothrin can provide good control of Ae. albopictus larvae for a considerable period of time and have great potential with regard to container mosquito management in the future.

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14

SELINGER, PETER, and BENOIT VALIRON. "A lambda calculus for quantum computation with classical control." Mathematical Structures in Computer Science 16, no. 3 (June 2006): 527–52. http://dx.doi.org/10.1017/s0960129506005238.

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In this paper we develop a functional programming language for quantum computers by extending the simply-typed lambda calculus with quantum types and operations. The design of this language adheres to the ‘quantum data, classical control’ paradigm, following the first author's work on quantum flow-charts. We define a call-by-value operational semantics, and give a type system using affine intuitionistic linear logic. The main results of this paper are the safety properties of the language and the development of a type inference algorithm.

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15

Micheau, Philippe, Paulin Buaka, and Paul Bourassa. "CONTROL OF THE SIMPLEST WALKING MODEL WITH LAMBDA MODEL." IFAC Proceedings Volumes 35, no. 1 (2002): 413–18. http://dx.doi.org/10.3182/20020721-6-es-1901.00881.

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16

Li, Li, Bin Li, Dong Liu, and Houqiang Li. "$\lambda$ -Domain Rate Control Algorithm for HEVC Scalable Extension." IEEE Transactions on Multimedia 18, no. 10 (October 2016): 2023–39. http://dx.doi.org/10.1109/tmm.2016.2595264.

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17

Marques, Pascual. "Flight Stability and Control of Tailless Lambda Unmanned Aircraft." International Journal of Unmanned Systems Engineering 1, no. 2 (April 1, 2013): 1–4. http://dx.doi.org/10.14323/ijuseng.2013.5.

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18

Pavlovic, Ivan, Suren Husinec, Vitomir Djokic, and Marina Vuksa. "Efficacy of different lambda-cyhalothrin formulations against ticks." Pesticidi i fitomedicina 23, no. 2 (2008): 127–31. http://dx.doi.org/10.2298/pif0802127p.

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Ticks (Acari:Ixodida) are arthropods of special biomedical importance, well known as transmitters of several zoonotic diseases. Various acaricides have been used to control them but their number has decreased over the years. Having this in mind, we examined in 2003-2005 the possibility of using a 5% microemulsion and an EC formulation of lambda-cyhalothrin to control ticks on dogs and sheep, and in houses. The 5% microemulsion of lambda-cyhalothrine caused tick mortality after 2-3 minutes. The efficacy of the 5% EC formulation of lambda-cyhalothrin was unsatisfactory.

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19

Murray, Noreen E. "The impact of phage lambda: from restriction to recombineering." Biochemical Society Transactions 34, no. 2 (March 20, 2006): 203–7. http://dx.doi.org/10.1042/bst0340203.

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Experiments using phage lambda provided early insights into important molecular mechanisms, including genetic recombination and the control of gene expression. Before recombinant DNA technology, the use of lambda, most particularly lambda transducing phages, illustrated the importance of cloning bacterial genes, already providing some insight into how to use cloned genes to advantage. Subsequently, lambda made significant contributions to recombinant DNA technology, including the early generation of genomic and cDNA libraries. More recently, lambda genes associated with recombination have enabled techniques referred to as ‘recombineering’ to be developed. These techniques permit the refined manipulation, including mutation, of foreign genes in Escherichia coli and their subsequent return to the donor organism.

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20

Sammon, M. "Geometry of respiratory phase switching." Journal of Applied Physiology 77, no. 5 (November 1, 1994): 2468–80. http://dx.doi.org/10.1152/jappl.1994.77.5.2468.

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A second-order ordinary differential equation is outlined for the temporal dynamics of the respiratory central pattern generator (RCPG). Recurrent interactions between central excitation and inhibition confine the breathing cycle to the interior of a heteroclinic orbit between switching points (saddle equilibria) located at end expiration (E-I) and end inspiration (I-E). Dynamics depend on four eigenvalues that control inspiratory drive (lambda), excitability of inspiratory off switch (omega 1; stage 1 expiration), rate of central excitation disinhibition (omega 2; stage 2 expiration), and damping of the oscillator (epsilon). Ratios omega 2/lambda and omega 1/lambda determine local E-I and I-E phase switching, whereas inspiratory-to-expiratory balance varies as omega 2/(lambda omega 1). Stable apnea is seen when (lambda omega 2)/epsilon is near zero; inspiratory apneusis is seen when (lambda omega 1)/epsilon is low. The equations provide formalisms for discussing phase switching, apneas, apneuses, phase resetting and singularities, rapid shallow breathing, postinhibitory rebound excitation, redundancy, gating within the RCPG, and behavioral control of breathing. The model is offered as an explicit alternative to the harmonic oscillator models that have been used in the past to describe RCPG function.

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21

Meri, S., V. Koistinen, A. Miettinen, T. Törnroth, and I. J. Seppälä. "Activation of the alternative pathway of complement by monoclonal lambda light chains in membranoproliferative glomerulonephritis." Journal of Experimental Medicine 175, no. 4 (April 1, 1992): 939–50. http://dx.doi.org/10.1084/jem.175.4.939.

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Immunopathological evidence suggests that activation of the alternative pathway of complement (AP) is involved in membranoproliferative glomerulonephritis (MPGN) and in immunoglobulin A nephropathy. In this report we describe an AP dysfunction-associated factor that was isolated from the serum and urine of a patient with hypocomplementemic MPGN. Extensive glomerular deposits of C3, properdin, and of the terminal complement components were observed in the kidney of the patient. In her serum the AP hemolytic activity was virtually absent. When mixed with fresh normal serum, the patient's serum induced a 96% C3 conversion during a 30-min incubation at +37 degrees C. This activity was found to be due to a circulating factor that by immunochemical characterization proved to be a 46-kD monoclonal immunoglobulin lambda light (L) chain dimer (lambda L). Purified lambda L, but not control lambda or kappa L chains from patients with L chain disease, activated the AP in a dose- and ionic strength-dependent manner. Functionally, lambda L was differentiated from C3 nephritic factor (an autoantibody against the AP C3 convertase, C3bBb) by its inability to bind to and stabilize the C3bBb enzyme. Instead, lambda L was observed to interact directly with the AP control factor H. Thus, lambda L represents a novel type of immunoglobulin-related AP-activating factor with the capacity to initiate alternative complement pathway activation in the fluid phase.

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22

Dean, Jeffrey. "The lambda model is only one piece in the motor control puzzle." Behavioral and Brain Sciences 18, no. 4 (December 1995): 749. http://dx.doi.org/10.1017/s0140525x00040759.

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AbstractThe lambda model provides a physiologically grounded terminology for describing muscle function and emphasizes the important influence of environmental and reflex-mediated effects on final states. However, lambda itself is only a convenient point on the length-tension curve; its importance should not be overemphasized. Ascribing movement to changes in a lambda-based frame of reference is generally valid, but it leaves unanswered a number of questions concerning mechanisms.

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23

KRAUSKOPF, BERND, and HARTJE KRIETE. "Kernel convergence of hyperbolic components." Ergodic Theory and Dynamical Systems 17, no. 5 (October 1997): 1137–46. http://dx.doi.org/10.1017/s0143385797086409.

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We study families $G(\lambda,\cdot)$ of entire functions that are approximated by a sequence of families $G_n(\lambda,\cdot)$ of entire functions, where $\lambda\in\C$ is a parameter. In order to control the dynamics, the families are assumed to be of the same constant finite type. In this setting we prove the convergence of the hyperbolic components in parameter space as kernels in the sense of Carathéodory.

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24

Tunca, Hatice. "Determination of changes in Arthrospira platensis antioxidant activity and growth parameters due to oxidative stress arising from Lambda cyhalothrin." Annales de Limnologie - International Journal of Limnology 56 (2020): 27. http://dx.doi.org/10.1051/limn/2020024.

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Toxic stress caused by pesticides changes the function and structure of the aquatic ecosystem via impressing to species composition. Therefore it is necessary to determine the reaction of cyanobacteria to pesticides for comprehend the effects of these substances on the aquatic ecosystems. This study aims to determine the toxicity and oxidative stress that Lambda cyhalothrin may cause in cyanobacteria, one of the primary producers in lake ecosystems. For these reasons, the changes in chlorophyll-a content, OD560 absorbance, the antioxidant enzyme acitvities such as superoxidedismutase (SOD), ascorbate peroxidase (APX), and glutathione reducatse (GR) were assessed to carry out the effect of Lambda cyhalothrin concentrations (between 6.25 and 100 μg ml−1) on Arthrospira platensis. EC50 value is calculated as 11.94 μg m l−1 Lambda cyhalothrin concentrations. SOD and APX activities was statistically different from the control at 100 μg m l−1 Lambda cyhalothrin application compared to control in A. platensis-M2 cells. On the other hand, GR activity did not effect significantly. According to our results, we may conclude that Lambda cyhalothrin concentrations used in this study inhibited the growth of A. platensis cells in a time and dose-dependent manner, as indicated by lowered chlorophyll-a content and OD560 values and Lambda cyhalothrin caused oxidative stress in A. platensis cells. As a result, the restriction of Lambda cyhalothrin using at the certain concentrations may be a step to prevent pesticide pollution in the environment.

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25

Loeb, Gerald E. "What can we expect from models of motor control?" Behavioral and Brain Sciences 18, no. 4 (December 1995): 767–68. http://dx.doi.org/10.1017/s0140525x00040917.

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AbstractThe lambda model of servocontrol seems superior to the alpha model in terms of dealing with the mechanical complexities of nonlinear and multiarticular muscles. Both, however, can be trivialized by noting that the “control variable” may simply be the sum of descending influences at propriospinal interneurons in the case of the lambda model or in the muscles themselves in the case of the alpha model. The notion that the brain explicitly computes output in terms of any such control variables may be an engineering metaphor, useful for conceptual understanding but not for generating predictive hypotheses about higher motor circuitry.

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26

Szalewska-Pałasz, A., and G. Wegrzyn. "Inhibition of transcription starting from bacteriophage lambda pR promoter during the stringent response in Escherichia coli: implications for lambda DNA replication." Acta Biochimica Polonica 42, no. 2 (June 30, 1995): 233–39. http://dx.doi.org/10.18388/abp.1995_4615.

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Replication of lambda plasmid DNA is halted in amino acid-starved wild type (stringent) strains whereas it proceeds in relA (relaxed) mutants. The only transcription which could be important in lambda plasmid DNA replication in amino acid-starved Escherichia coli cells is that starting from the pR promoter. Using a fusion which consists of the lacZ gene under the control of bacteriophage lambda pR promoter we found that transcription starting from this promoter was inhibited during the stringent, but not the relaxed, response in E. coli. We confirmed our conclusion by estimating the relative level of the pR transcript by RNA-DNA hybridization. We propose that decreased transcription from the pR promoter which serves as transcriptional activation of ori lambda is responsible for inhibition of lambda plasmid replication during the stringent response. The results presented in this paper, combined with our recent findings (published elsewhere), indicate that the transcriptional activation of ori lambda may be a main regulatory process controlling lambda DNA replication not only during the relaxed response but also in normal growth conditions.

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27

Shaw, Bethan, Sebastian Hemer, Madeleine F. L. Cannon, Francesco Rogai, and Michelle T. Fountain. "Insecticide Control of Drosophila suzukii in Commercial Sweet Cherry Crops under Cladding." Insects 10, no. 7 (July 4, 2019): 196. http://dx.doi.org/10.3390/insects10070196.

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Drosophila suzukii Matsumura is a damaging invasive pest of sweet cherry. Using a series of laboratory leaf contact assays, semi-field, and orchard spray programs we aimed to determine the impact of insecticide programs on D. suzukii adult mortality and oviposition in cladding-protected sweet cherry crops. Tests included assessing adult D. suzukii mortality after contact with leaves sprayed either one or two weeks previously and emergence of adults from fruits. Spinosad, lambda-cyhalothrin, acetamiprid, lime, pyrethrin, deltamethrin, and cyantraniliprole all reduced fruit damage up to day 7 after application. Of these active ingredients, only spinosad, lambda-cyhalothrin, and cyantraniliprole gave satisfactory control up to 14 days. There was no significant difference in D. suzukii mortality when exposed to leaves treated either one or two weeks previously with an application of either spinosad, cyantraniliprole, or lambda-cyhalothrin; however, mortality was significantly higher than D. suzukii in contact with untreated leaves. In eight commercial orchards, fortnightly spray applications including spinosad, cyantraniliprole, and lambda-cyhalothrin gave effective control of D. suzukii until harvest with very few damaged fruits. These experiments demonstrate that currently approved plant protection products, applied to sweet cherry under protection, give at least two weeks protection from D. suzukii.

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28

Krebbers, Robbert. "A call-by-value lambda-calculus with lists and control." Electronic Proceedings in Theoretical Computer Science 97 (October 9, 2012): 19–33. http://dx.doi.org/10.4204/eptcs.97.2.

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29

LAGO, UGO DAL, ANDREA MASINI, and MARGHERITA ZORZI. "On a measurement-free quantum lambda calculus with classical control." Mathematical Structures in Computer Science 19, no. 2 (April 2009): 297–335. http://dx.doi.org/10.1017/s096012950800741x.

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We study a measurement-free, untyped λ-calculus with quantum data and classical control. This work arises from previous proposals by Selinger and Valiron, and Van Tonder. We focus on operational and expressiveness issues, rather than (denotational) semantics. We prove subject reduction and confluence, and a standardisation theorem. Moreover, we prove the computational equivalence of the proposed calculus with a suitable class of quantum circuit families.

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30

Li, Bin, Houqiang Li, Li Li, and Jinlei Zhang. "\(\lambda \) Domain Rate Control Algorithm for High Efficiency Video Coding." IEEE Transactions on Image Processing 23, no. 9 (September 2014): 3841–54. http://dx.doi.org/10.1109/tip.2014.2336550.

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31

Li, Li, Ning Yan, Zhu Li, Shan Liu, and Houqiang Li. "$\lambda$-Domain Perceptual Rate Control for 360-Degree Video Compression." IEEE Journal of Selected Topics in Signal Processing 14, no. 1 (January 2020): 130–45. http://dx.doi.org/10.1109/jstsp.2019.2963154.

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32

Ratering, Alexandra, and Peter Eberhard. "Flatness-based control of a machine tool with lambda kinematic." IFAC Proceedings Volumes 37, no. 13 (September 2004): 135–40. http://dx.doi.org/10.1016/s1474-6670(17)31212-0.

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33

Pedruzi, Gerson Ovidio Luz, Raquel Rodrigues Santos, Michael De Oliveira Resende, Márcio Arêdes Martins, and Marcus Meira Santana. "CONTROL SYSTEM FOR COMPLETE BURNING IN FURNACE USING LAMBDA PROBE." REVISTA ENGENHARIA NA AGRICULTURA - REVENG 28 (February 4, 2020): 69–77. http://dx.doi.org/10.13083/reveng.v28i.903.

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The objective of this work was to evaluate the biomass burning process in a furnace, using chip as a raw material and an oxygen sensor (lambda probe) to monitor the percentage of oxygen in the gases exhausted during combustion, aiming to maintain the percentage of the coefficient of excess air (α) in the operating range of 1.20 to 1.25%, considered ideal for the biomass (chip) used in the study. Once the excess air is identified at the upper furnace exit, the air entrance in the system will be closed by means of a butterfly valve using a servo motor driven by a Programmable Logic Controller (PLC). The valve was opened or closed according to the oxygen level; when it was lower than 1.20%, the door remained open, and it was closed when the level reached 1.25%, finishing the cycle of the process. The open and closed states of the valve occurred by means of two reed switch magnetic key sensors installed in the air intake system. For the control, monitoring and data acquisition, a supervisory system created using the Elipse SCADA software was used so it was possible to obtain a system database, which will provide important information to maximize the efficiency of the furnace.

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34

Raab, Ronald, Gregory Neal, Charles Sohaskey, Jeffery Smith, and Ry Young. "Dominance in lambda S mutations and evidence for translational control." Journal of Molecular Biology 199, no. 1 (January 1988): 95–105. http://dx.doi.org/10.1016/0022-2836(88)90381-6.

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35

Singh, AK. "Bioefficacy of different insecticides against blister beetle Mylabris phalerata (Pallas) on pigeonpea." SAARC Journal of Agriculture 15, no. 1 (July 29, 2017): 55–65. http://dx.doi.org/10.3329/sja.v15i1.33151.

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The experiment was accomplished to evaluate the bioefficacy of different insecticides against Mylabris phalerata (Pallas) on pigeonpea. The experiment consisted of seven treatments viz., bifenthrin 62 g a.i. ha-1, lambda-cyhalothrin 24 g a.i. ha-1 (encapsulated with polymers; Matadore), chlorpyriphos 310 g a.i. ha-1+ cypermethrin 31 g a.i. ha-1, cypermethrin 62 g a.i. ha-1, neem oil 1500 ppm, permethrin 154 g a.i. ha-1, chloropyriphos 173 g a.i. ha-1 compared with untreated (control). The sixth day after each spray, minimum population abundance of M. phalerata and maximum percent efficacy in reducing their population was obtained from bifenthrin which was at par with lambda-cyhalothrin, cypermethrin, chlorpyriphos+ cypermethrin and permethrin and all these were significantly effective over chloropyriphos, neem oil and control plots. On the tenth day after each spray, minimum population abundance and highest per cent efficacy were obtained from bifenthrin which was at par with lambda-cyhalothrin and both these treatments were significantly superior over rest of the treatments. The maximum productivity was observed with bifenthrin, while highest net return per rupee investment was obtained from lambda-cyhalothrin treatment. The results explicitly show that out of all treatments, Lambda-cyhalothrin was effective and imposing lucrative against M. phalerata and thereby minimized the yield loss. Three sprays of lambda-cyhalothrin and bifenthrin with an interchange at ten days interval will be effectual and lucrative against M. phalerata in short duration pigeonpea crop.SAARC J. Agri., 15(1): 55-65 (2017)

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Guagchinga, Fabián, Paola Calvopiña, Silvia Alpúsig, and Mildred Lisseth Cajas Buenaño. "Contol PID de procesos autoregulados e integrantes sintonizados con el método lambda." Revista Perspectivas 3, no. 1 (January 10, 2021): 43–49. http://dx.doi.org/10.47187/perspectivas.vol3iss1.pp43-49.2021.

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Este trabajo presenta la implementación de una herramienta didáctica para determinar el valor de las constantes de un controlador PID mediante el método lambda, también conocida como IMC (Método de Control Interno). Dicha herramienta puede ser utilizada para la puesta en marcha de un proceso o ratificar los valores actuales de las constantes del controlador ya que el desgaste de los elementos que conforman un proceso afecta a su dinámica, siendo necesario actualizarlas con cierta frecuencia. Para validar la herramienta se realizaron pruebas de un proceso integrante y uno autorregulado. Se presenta como resultado la comparación de valores de constantes aplicando estrategias de control convencionales como es el PID y la metodología lambda para su sintonización, así como la respuesta del proceso a cambios similares, como punto de consigna o perturbaciones. Los resultados determinaron que mediante la sintonización lambda el control es rápido y estable.

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37

Kermani, Mostafa, Domenico Luca Carnì, Sara Rotondo, Aurelio Paolillo, Francesco Manzo, and Luigi Martirano. "A Nearly Zero-Energy Microgrid Testbed Laboratory: Centralized Control Strategy Based on SCADA System." Energies 13, no. 8 (April 23, 2020): 2106. http://dx.doi.org/10.3390/en13082106.

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Currently, despite the use of renewable energy sources (RESs), distribution networks are facing problems, such as complexity and low productivity. Emerging microgrids (MGs) with RESs based on supervisory control and data acquisition (SCADA) are an effective solution to control, manage, and finally deal with these challenges. The development and success of MGs is highly dependent on the use of power electronic interfaces. The use of these interfaces is directly related to the progress of SCADA systems and communication infrastructures. The use of SCADA systems for the control and operation of MGs and active distribution networks promotes productivity and efficiency. This paper presents a real MG case study called the LAMBDA MG testbed laboratory, which has been implemented in the electrical department of the Sapienza University of Rome with a centralized energy management system (CEMS). The real-time results of the SCADA system show that a CEMS can create proper energy balance in a LAMBDA MG testbed and, consequently, minimize the exchange power of the LAMBDA MG and main grid.

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Herkner, K. R., H. Salzer, A. Böck, A. Mühl, T. Tsaka, H. Steger, A. Pollak, C. Schatten, W. Popp, and V. Huber-Spitzy. "Pediatric and Perinatal Reference Intervals for Immunoglobulin Light Chains Kappa and Lambda." Clinical Chemistry 38, no. 4 (April 1, 1992): 548–50. http://dx.doi.org/10.1093/clinchem/38.4.548.

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Abstract In routine analysis for immunoglobulin light chains in pediatric diagnostics, the age-related reference intervals for serum kappa (kappa) and lambda (lambda) light chains were evaluated in 1543 healthy subjects (newborns to age 16 years, including 168 premature infants). Light-chain analysis was performed by rate nephelometry. IgG, IgA, and IgM were measured simultaneously, and heavy- and light-chain differences were calculated for control purposes. Results for IgG, IgA, and IgM generally agreed with reference intervals reported in the literature. kappa showed age-related changes comparable with changes in IgG concentrations, whereas lambda showed moderate fluctuations. The kappa/lambda ratio showed an almost linear increase with age, starting with 0.97 at four months and reaching the highest value of 2.21 at 15 years (mean values). Preterm infants presented with markedly low serum concentrations of IgG and corresponding light chains but with adult-type kappa/lambda ratios because of the maternal-origin IgG.

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Fukushima, T., K. Sekizawa, M. Yamaya, S. Okinaga, M. Satoh, and H. Sasaki. "Viral respiratory infection increases alveolar macrophage cytoplasmic motility in rats: role of NO." American Journal of Physiology-Lung Cellular and Molecular Physiology 268, no. 3 (March 1, 1995): L399—L406. http://dx.doi.org/10.1152/ajplung.1995.268.3.l399.

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Ingested ferrimagnetic (Fe3O4) particles were used to estimate noninvasively the motion of organelles in alveolar macrophages (AM) in intact rats during viral respiratory infection by parainfluenza type 1 (Sendai) virus. Four days after instillation of Fe3O4 particles (3 mg/kg) into the lung, remnant field strength (RFS) was measured at the body surface immediately after magnetization of Fe3O4 particles by an externally applied magnetic field. RFS decreases with time, due to particle rotation (relaxation) which is related to cytoplasmic motility of AM. Viral infection increased the relaxation rate (lambda o per min), and increases in lambda o reached a maximum 3 days after nasal inoculation (day 3). Viral infection (day 3)-induced increases in lambda o were dose dependently inhibited by either the L-arginine analogue N-nitro-L-arginine or by methylene blue, an inhibitor of guanylate cyclase activity. Bronchoalveolar lavage fluid obtained from infected rats contained significantly higher levels of nitrite than that from control rats (P < 0.01). In in vitro experiments, AM from infected rats showed significantly higher lambda o, nitrite production, and intracellular guanosine 3',5'-cyclic monophosphate levels than those from control rats (P < 0.01). Sodium nitroprusside, known to release nitric oxide concentration dependently, increased lambda o of AM from noninfected rats in vitro. These results suggest that nitric oxide plays an important role in AM cytoplasmic motility during viral respiratory infection.

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Engelhardt, Monika, Daniel Räpple, Andreas Weis, Emanuel Bisse, and Gabriele Ihorst. "Serum Free Light Chain (FLC) Measurement in Multiple Myeloma (MM) Patients (pts) Correlate with Known Monoclonal Paraprotein, Disease Stage and Therapy Response." Blood 104, no. 11 (November 16, 2004): 4907. http://dx.doi.org/10.1182/blood.v104.11.4907.4907.

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Abstract So far, data based on small patient (pt) population suggest that the measurement of serum FLC from MM pts undergoing high-dose chemotherapy (HDCT) with stem cell transplantation (SCT) may be a sensitive marker for monitoring therapy success and for early detection of relapse. For further evaluation of the impact of FLCs on the assessment of treatment efficacy of standard- (ST) and HDCT with SCT, we performed a prospective analysis on serial serum specimens from 86 MM and 9 control pts. Measurement of FLC concentration was performed with the commercially available Freelite™ kit (Binding Site). For statistical analysis, pts’ clinical history, age at diagnosis, sex, current state of disease, karyotype and serum parameters, such as ß2-microglobulin, calcium levels and serum creatinine were evaluated. In the control group (NHL=6, AML=1, non-hematological disease=2), median concentrations of kappa(k)- and lambda(l)- FLC were 9.8 mg/l and 12.8 mg/l, respectively, corresponding to reference intervals for healthy individuals with normal kappa(k)/lambda(l)-ratios. In MM, 40 (46.5%) pts displayed kappa(k)-FLC levels above the upper range of 19mg/l, 26 (30%) had lambda(l)-FLC levels above the upper range of 26 mg/l and 9 pts (10.4%) had both elevated kappa(k)- and lambda(l)-FLC serum levels. An abnormal kappa(k)/lambda(l)-ratio was observed in 45 (52,3%) MM pts. Pts with a known kappa(k)-paraprotein (n=58) had a median FLC kappa(k)-concentration of 38 mg/l, but lambda(l)-FLC within the normal range. For pts with a known lambda(l)-paraprotein (n=27), reciprocal findings (76.4 mg/l for lambda(l)- vs kappa(k)-FLC in the normal range) were observed. Pts with responsive disease (CR, PR and SD) had both kappa(k)- and lambda(l)- FLC levels within the normal range, whereas newly diagnosed pts (ED) and those with PD had kappa(k)- FLC levels approx. 3-times the normal range, with lambda(l)- FLC levels at the upper limit of normal. Pts receiving ST as compared with HDCT had higher FLC levels. This is also observed in pts with amyloidosis, renal impairment or PD. Our results suggest that serum FLC assay allows monitoring of the therapy response and early detection of relapse. Determination of FLCs is also important, when evaluating new therapeutic substances, and for detection of prognostic patterns for better risk-based stratification of treatment.

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Paul, Michael, and Martin Rein. "Transonic Numerical and Experimental Evaluation of Unconventional Lambda Wing Control Surfaces." Journal of Aircraft 54, no. 3 (May 2017): 1139–49. http://dx.doi.org/10.2514/1.c034080.

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KELLY, DAVID W., ZEHRA MUSTAFA, and CHRISTOPHER DYE. "Differential application of lambda-cyhalothrin to control the sandfly Lutzomyia longipalpis." Medical and Veterinary Entomology 11, no. 1 (January 1997): 13–24. http://dx.doi.org/10.1111/j.1365-2915.1997.tb00285.x.

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D’Alessandro, Domenico, Benjamin A. Sheller, and Zhifei Zhu. "Time-optimal control of quantum lambda systems in the KP configuration." Journal of Mathematical Physics 61, no. 5 (May 1, 2020): 052107. http://dx.doi.org/10.1063/5.0008034.

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Szalewska-Pałasz, A., A. Wegrzyn, A. Herman, and G. Wegrzyn. "The mechanism of the stringent control of lambda plasmid DNA replication." EMBO Journal 13, no. 23 (December 1994): 5779–85. http://dx.doi.org/10.1002/j.1460-2075.1994.tb06916.x.

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Bläsi, U., K. Nam, D. Hartz, L. Gold, and R. Young. "Dual translational initiation sites control function of the lambda S gene." EMBO Journal 8, no. 11 (November 1989): 3501–10. http://dx.doi.org/10.1002/j.1460-2075.1989.tb08515.x.

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Awduche, D., and Y. Rekhter. "Multiprotocol lambda switching: combining MPLS traffic engineering control with optical crossconnects." IEEE Communications Magazine 39, no. 3 (March 2001): 111–16. http://dx.doi.org/10.1109/35.910598.

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Hariche, Kamel, Bachir Nail, Abdelhakim Dahimene, and Belkacem Bekhiti. "On lambda-matrices and their applications in MIMO control systems design." International Journal of Modelling, Identification and Control 1, no. 1 (2017): 1. http://dx.doi.org/10.1504/ijmic.2017.10008337.

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Mir, Junaid, Dumidu S. Talagala, Anil Fernando, and Syed Sameed Husain. "Improved HEVC $$\lambda $$ λ -domain rate control algorithm for HDR video." Signal, Image and Video Processing 13, no. 3 (January 5, 2019): 439–45. http://dx.doi.org/10.1007/s11760-018-01411-2.

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Ahmadabadi, Majid Nili, Yaghub Farjami, and Mohammad Bameni Moghadam. "A process control method based on five-parameter generalized lambda distribution." Quality & Quantity 46, no. 4 (August 3, 2011): 1097–111. http://dx.doi.org/10.1007/s11135-011-9550-x.

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Warma, Mahamadi, and Sebastián Zamorano. "Analysis of the controllability from the exterior of strong damping nonlocal wave equations." ESAIM: Control, Optimisation and Calculus of Variations 26 (2020): 42. http://dx.doi.org/10.1051/cocv/2019028.

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We make a complete analysis of the controllability properties from the exterior of the (possible) strong damping wave equation associated with the fractional Laplace operator subject to the non-homogeneous Dirichlet type exterior condition. In the first part, we show that if 0 <s< 1, Ω ⊂ ℝN(N≥ 1) is a bounded Lipschitz domain and the parameterδ> 0, then there is no control functiongsuch that the following system\begin{align} u_{1,n}+ u_{0,n}\widetilde{\lambda}_{n}^++ \delta u_{0,n}\lambda_{n}=\int_0^{T}\int_{\Omc}(g(x,t)+\delta g_t(x,t))e^{-\widetilde{\lambda}_{n}^+ t}\mathcal{N}_{s}\varphi_{n}(x)\d x\d t,\label{39}\\ u_{1,n}+ u_{0,n}\widetilde{\lambda}_{n}^- +\delta u_{0,n}\lambda_{n}=\int_0^{T}\int_{\Omc}(g(x,t)+\delta g_t(x,t))e^{-\widetilde{\lambda}_{n}^- t}\mathcal{N}_{s}\varphi_{n}(x)\d x\d t,\label{40} \end{align}is exact or null controllable at timeT> 0. In the second part, we prove that for everyδ≥ 0 and 0 <s< 1, the system is indeed approximately controllable for anyT> 0 andg∈D(O× (0,T)), whereO⊂ ℝN\ Ω is any non-empty open set.

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