Bibliografías temáticas / Robust stability (margins) and performance

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Literatura académica sobre el tema "Robust stability (margins) and performance"

Autor: Grafiati
Publicado: 25 de enero de 2025
Última modificación: 31 de julio de 2025

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Artículos de revistas sobre el tema "Robust stability (margins) and performance"

1

Pourseiedrezaei, Mehdi, Mohammad Bozorg, and Ali Delavar-Khalafi. "Application of Two Polynomial Optimization Methods for Computing Robust Stability and Robust Performance Margins." IFAC Proceedings Volumes 44, no. 1 (2011): 7690–95. http://dx.doi.org/10.3182/20110828-6-it-1002.02974.

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Al-Shamali, Saleh A., Haniph A. Latchman, Baowei Ji, and Oscar D. Crisalle. "A Margin for Robust Stability and Robust Performance." IFAC Proceedings Volumes 36, no. 11 (2003): 335–40. http://dx.doi.org/10.1016/s1474-6670(17)35686-0.

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Abdulsada, Abdullah, and Nasir Selman. "Robust digital voltage mode control of buck converter with enhanced tracking performance." Al-Qadisiyah Journal for Engineering Sciences 17, no. 2 (2024): 158–64. http://dx.doi.org/10.30772/qjes.2024.145861.1076.

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The digital voltage controller of power converters is used because it has many advantages over its analog counterparts. Thus, in this paper, a controller of digital voltage mode is designed and analyzed for a non-isolated DC-DC buck converter in continuous conduction mode (CCM). First, an analog controller is designed using a Bode plot to achieve the desired stability margins in the frequency domain. Next, the analog controller is discretized using bilinear transformation with the pre-warping method. The characteristics of the discretized compensator can be maintained close to the correspondin
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Gopi, Pasala, Pinni Srinivasa Varma, Ch Naga Sai Kalyan, et al. "Dynamic Behavior and Stability Analysis of Automatic Voltage Regulator with Parameter Uncertainty." International Transactions on Electrical Energy Systems 2023 (January 25, 2023): 1–13. http://dx.doi.org/10.1155/2023/6662355.

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This research article describes a novel optimization technique called simulink design optimization (SDO) to compute the optimal PID coefficients for an automatic voltage regulator (AVR). The time-domain performance of the proposed controller was analyzed using MATLAB/Simulation, and its performance was compared with that of water cycle algorithm, genetic algorithm, and local unimodal sampling algorithm-based PID controllers. The robustness of the proposed controller was verified by applying the disturbances to the generator field voltage and the amplifier parameter uncertainty. The studies pre
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5

Jinai, Kota, Yusuke Tsunoda, Natsuki Kawaguchi, Orlando Arrieta, and Takao Sato. "Data-Driven Design of Fractional-Order PID Controllers: Optimization of Robust Servo-Regulator Performance." Journal of Robotics and Mechatronics 37, no. 3 (2025): 688–99. https://doi.org/10.20965/jrm.2025.p0688.

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This study proposes a data-driven optimal robust design methodology for a fractional-order proportional-integral-derivative (FOPID) controller. This methodology concurrently determines the parameters of the FOPID controller and reference model under a stability-margin constraint by utilizing only one-shot input-output data. The stability margin, which is quantitatively defined as the maximum value of the sensitivity function, is specified by the designer. This approach ensures a balanced design based on the trade-off between robust stability and servo or regulator performance at a given robust
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6

Hasanvand, Hamed, and Mohammad Reza Zamani. "Robust control of static Var compensator-based power oscillation dampers using polynomial control in power systems." Transactions of the Institute of Measurement and Control 40, no. 5 (2017): 1395–406. http://dx.doi.org/10.1177/0142331216683774.

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A static Var compensator (SVC) installed in a power transmission network can be effectively exploited to enhance the damping of low frequency electromechanical oscillations. The application of robust control theory offers more reliable and robust damping controller to achieve desired damping level considering variations in the operating conditions of power system. This paper presents a new approach to design a robust proportional-integral (PI) controller for stabilizing power system oscillations. The variability in operating conditions is captured using an interval polynomial and then, Kharito
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7

Halbe, Omkar, Tim Mehling, Manfred Hajek, and Milan Vrdoljak. "Synthesis and Piloted Evaluation of Advanced Rotorcraft Response Types Using Robust Sliding Mode Control." Journal of the American Helicopter Society 66, no. 3 (2021): 1–20. http://dx.doi.org/10.4050/jahs.66.032008.

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Sliding mode control (SMC) is a promising technique for robust control synthesis with desirable properties. This paper describes the synthesis and piloted evaluation of advanced helicopter response types using the SMC technique. The required closed-loop response characteristics are specified as ideal, lower order, axial transfer functions that conform to predicted level 1 handling qualities. Two-loop, full-authority, output-tracking SMC laws are then synthesized to enforce the closed-loop performance and accurately track pilot commands. Analytical proofs for SMC gain tuning are given for the c
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8

Yeh, Syh-Shiuh, and Pau-Lo Hsu. "Theory and Applications of the Robust Cross-Coupled Control Design." Journal of Dynamic Systems, Measurement, and Control 121, no. 3 (1999): 524–30. http://dx.doi.org/10.1115/1.2802506.

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The cross-coupled control (CCC) has been recognized as an efficient motion controller that reduces contouring errors, but theoretical analysis of it is lacking, and there is no systematic design approach for obtaining a CCC system with guaranteed control performance. Consequently, the compensators C in CCC are commonly implemented in a PID structure and their contouring accuracy is usually degraded in real applications under different operating conditions. In an attempt to overcome the CCC design limitations described above, this paper introduces a robust CCC design based on a novel formulatio
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S. Kumar, Supanna, C. Shreesha, and N. K. Philip. "Robust PID controller design for rigid uncertain spacecraft using Kharitonov theorem and vectored particle swarm optimization." International Journal of Engineering & Technology 7, no. 2.21 (2018): 9. http://dx.doi.org/10.14419/ijet.v7i2.21.11825.

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This paper presents a robust Proportional Integral Derivative controller design methodology for three axis attitude control of a rigid spacecraft with parametric uncertainty using a combination of Kharitonov theorem and vectored particle swarm optimization based approaches. A controller is designed for each of the three axes using a systematic graphical approach. Here, a plot of the stability boundary loci in the integral gain versus proportional gain parameter plane, for the specified gain and phase margins for each of the Kharitonov interval plants is used to determine the region representin
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10

Li, Zibo, Haitao Yang, Jin Wang, Yali Wang, and Libing Zhou. "Improved Discrete-Time Active Disturbance Rejection Control for Enhancing Dynamics of Current Loop in LC-Filtered SPMSM Drive System." Energies 18, no. 11 (2025): 2894. https://doi.org/10.3390/en18112894.

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Active disturbance rejection control is implemented in a LC-filtered surface-mounted permanent magnet synchronous motor (SPMSM) drive system to enhance current control dynamics. However, the combined effects of computation one-beat delay and the pulse-width modulation zero-order hold (ZOH) effect significantly degrade system stability and dynamic performance. To address these limitations, an improved predictive extended state observer (ESO) with an accurate ZOH discretization method is proposed to ensure fast and robust dynamic performance. The predictive ESO predicts one beat to compensate fo
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Tesis sobre el tema "Robust stability (margins) and performance"

1

Somers, Franca Maria Emma. "Nouveaux outils probabilistes pour améliorer la vérification et la validation des systèmes de contrôle spatiaux." Electronic Thesis or Diss., Toulouse, ISAE, 2024. http://www.theses.fr/2024ESAE0054.

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Les activités actuelles de vérification et validation (V&V) dans l'industrie aérospatiale reposent principalement sur des outils de simulation qui prennent beaucoup de temps. Ces approches classiques de type Monte-Carlo sont largement utilisées depuis des décennies pour évaluer les performances des systèmes de guidage, de navigation et de contrôle (GNC) et des systèmes de contrôle d'attitude et d'orbite (SCAO) contenant de multiples paramètres incertains. Elles permettent de quantifier la probabilité d'occurrence de phénomènes suffisamment fréquents, mais peuvent échouer dans la détection
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Lin, Jong-Lick. "Control system design for robust stability and robust performance." Thesis, University of Leicester, 1992. http://hdl.handle.net/2381/34797.

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A central problem in control system design is how to design a controller to guarantee that the closed-loop system is robustly stable and that performance requirements are satisfied despite the presence of model uncertainties and exogenous disturbance signals. The analysis problem, that is the assessment of control systems with respect to robust stability and robust performance, can be adequately solved using the structured singular value u as introduced by Doyle. The corresponding design problem (how to choose a controller K to minimize u) is still largely unsolved, but an approximate solution
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3

Buchstaller, Dominic. "Robust stability and performance for multiple model switched adaptive control." Thesis, University of Southampton, 2010. https://eprints.soton.ac.uk/72334/.

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While the concept of switching between multiple controllers to achieve a control objective is not new, the available analysis to date imposes various structural and analytical assumptions on the controlled plant. The analysis presented in this thesis, which is concerned with an Estimation-based Multiple Model Switched Adaptive Control (EMMSAC) algorithm originating from Fisher-Jeffes (2003), Vinnicombe (2004), is shown not to have such limitations. As the name suggests, the key difference between EMMSAC and common multiple model type switching schemes is that the switching decision is based on
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4

Chellaboina, Vijaya-Sekhar. "Robust stability and performance for linear and nonlinear uncertain systems with structured uncertainty." Diss., Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/12903.

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Gade, Prasad V. N. "Performance Enhancement and Stability Robustness of Wing/Store Flutter Suppression System." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/30339.

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In recent years, combat aircraft with external stores have experienced a decrease in their mission capabilities due to lack of robustness of the current passive wing/store flutter suppression system to both structured as well as unstructured uncertainties. The research program proposed here is to investigate the feasibility of using a piezoceramic wafer actuator for active control of store flutter with the goal of producing a robust feedback system that demonstrates increased performance as well as robustness to modeling errors. This approach treats the actuator as an active soft-decoup
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6

Emami, Tooran. "A bridge from stability to robust performance design of PID controllers in the frequency domain." Diss., Wichita State University, 2009. http://hdl.handle.net/10057/2560.

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A graphical technique for finding proportional integral derivative (PID) controllers that stabilize a given single-input-single-output (SISO) linear time-invariant (LTI) system of any order system with time-delay has been solved. In this research, a method is introduced for finding all achievable PID controllers that also satisfy an H sensitivity, complementary sensitivity, weighted sensitivity, robust stability, or robust performance constraint. These problems can be solved by finding all PID controllers that simultaneously stabilize the closedloop characteristic polynomial and satisfy const
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7

Mulay, Siddharth Pradeep. "Robustness Bounds For Uncertain Sampled Data Systems With Presence of Time Delays." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1365971507.

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Belapurkar, Rohit K. "Stability and Performance of Propulsion Control Systems with Distributed Control Architectures and Failures." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1357309068.

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Song, Zhuoyue. "Robust analysis and synthesis for uncertain negative-imaginary systems." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/robust-analysis-and-synthesis-for-uncertain-negativeimaginary-systems(9de4af43-983c-42a2-bafe-062970a738be).html.

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Negative-imaginary systems are broadly speaking stable and square (equal number of inputs and outputs) systems whose Nyquist plot lies underneath (never touches for strictly negative-imaginary systems) the real axis when the frequency varies in the open interval 0 to ∞. This class of systems appear quite often in engineering applications, for example, in lightly damped flexible structures with collocated position sensors and force actuators, multi-link robots, DC machines, active filters, etc. In this thesis, robustness analysis and controller synthesis methods for uncertain negative-imaginary
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10

Ju, Hann Shing, and 朱漢興. "Robust Stability and Performance of Longitudinal Flight Controller Design." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/90494205959092599604.

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Libros sobre el tema "Robust stability (margins) and performance"

1

Brenner, Marty. Wavelet filtering to reduce conservatism in aeroservoelastic robust stability margins. National Aeronautics and Space Administration, Dryden Flight Research Center, 1998.

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Brenner, Marty. Wavelet filtering to reduce conservatism in aeroservoelastic robust stability margins. National Aeronautics and Space Administration, Dryden Flight Research Center, 1998.

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Rick, Lind, and Dryden Flight Research Facility, eds. Wavelet filtering to reduce conservatism in aeroservoelastic robust stability margins. National Aeronautics and Space Administration, Dryden Flight Research Center, 1998.

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Castellanos, Rafael B. Robust stability and performance analysis of large scale power systems with real parametric uncertainty: A structured singular value approach. Edited by Messina Arturo R. Nova Science Publishers, 2008.

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Rawson, Jenny Louise. Evaluation of stability margins and design of robust controllers for hybrid systems. 1990.

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6

Landa, Dimitri, and Ryan Pevnick. Representative Democracy. Oxford University PressOxford, 2025. https://doi.org/10.1093/oso/9780198897538.001.0001.

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Abstract Despite the not-so-distant invocations of the “end of history,” representative democracy is, today, under siege even from corners where one once might have expected strong sympathy and support. Indeed, confidence in representative democracy has been shaken by the economic and political performance of many such regimes. The main goal of our book is to explain why the definitive institutional features of representative democracy make it attractive relative to salient alternatives (direct democracy, lottery-based systems, and meritocratic regimes). Our account turns on novel arguments th
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Capítulos de libros sobre el tema "Robust stability (margins) and performance"

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Lind, Rick, and Marty Brenner. "Stability Margins." In Robust Aeroservoelastic Stability Analysis. Springer London, 1999. http://dx.doi.org/10.1007/978-1-4471-0849-8_8.

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Lind, Rick, and Marty Brenner. "Robust Stability Margins of a Pitch-Plunge System." In Robust Aeroservoelastic Stability Analysis. Springer London, 1999. http://dx.doi.org/10.1007/978-1-4471-0849-8_10.

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Gu, Da-Wei, Petko H. Petkov, and Mihail M. Konstantinov. "Robust Stability and Performance." In Robust Control Design with MATLAB®. Springer London, 2013. http://dx.doi.org/10.1007/978-1-4471-4682-7_10.

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Lind, Rick, and Marty Brenner. "Robust Flutter Margins of the F/A-18 SRA." In Robust Aeroservoelastic Stability Analysis. Springer London, 1999. http://dx.doi.org/10.1007/978-1-4471-0849-8_11.

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Dong, Daoyi, and Ian R. Petersen. "Robust Stability and Performance Analysis of Quantum Systems." In Learning and Robust Control in Quantum Technology. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-20245-2_7.

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Yedavalli, Rama K. "Performance Robustness Analysis via Root Clustering (Robust D-Stability)." In Robust Control of Uncertain Dynamic Systems. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-9132-3_3.

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Mitov, Alexander, Tsonyo Slavov, Jordan Kralev, and Ilcho Angelov. "Robust Stability and Performance Investigation of Electrohydraulic Steering Control System." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-78459-1_29.

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Botelho, Rui M., and Richard E. Christenson. "Robust Stability and Performance Analysis for Multi-actuator Real-Time Hybrid Substructuring." In Dynamics of Coupled Structures, Volume 4. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15209-7_1.

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Fiorio, Giovanni, Mario Milanese, and Antonio Vicino. "Robust Stability and Performance in the Presence of Parametric and Norm Bounded Uncertainty." In Systems, Models and Feedback: Theory and Applications. Birkhäuser Boston, 1992. http://dx.doi.org/10.1007/978-1-4757-2204-8_17.

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Bilkenroth, Franz, Philipp Ramisch, Yunlai Li, and Andreas Ulbricht. "Enhancing Rail Vehicle Structural Performance Through High-Recyclability Thermoplastic Composite Lightweight Components." In Lecture Notes in Mobility. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-89444-2_46.

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Abstract In numerous industries beyond rail vehicle technology, the utilization of continuous fiber reinforced plastics (FRP) has already gained prominence alongside conventional metallic materials due to their exceptional lightweight potential. However, the application of such materials in rail vehicles encounters limitations, including stringent fire protection requirements, the need to establish new repair processes, feasibility of recycling, and higher manufacturing costs. To address these challenges and facilitate the structural implementation of FRP in rail vehicles, a comprehensive appr
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Actas de conferencias sobre el tema "Robust stability (margins) and performance"

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Knapp, Marit, Christina Ivler, Marcos Berrios, Tom Berger, and Mark Tischler. "Kalman Filter Estimation of Rotor-State Flapping: An Optimization-based Approach with UH-60 Flight Test Data." In Vertical Flight Society 73rd Annual Forum & Technology Display. The Vertical Flight Society, 2017. http://dx.doi.org/10.4050/f-0073-2017-12185.

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Flight testing of explicit rotor-state feedback (RSF) fly-by-wire control laws showed that measuring rotor tip-path-plane (TPP) flapping, via a laser measurement system, provided additional lead to the control system. This resulted in superior handling qualities in turbulence and heavy winds and improved stability margins. However, a significant impediment to the adoption of explicitly measured RSF has been the difficulty in extracting reliable rotor measurements. Therefore, this paper describes the development of a Kalman filter that was designed to estimate rotor TPP coordinates, and remove
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Ullah, Hameed, Owais Zarin, Irfan Ahmad, Sarfraz Ahmad, Ansar Abbas, and Vincenzo Lippiello. "Robust Sliding Mode Control of a Quadrotor With Disturbance Rejection for Enhanced Stability and Performance." In 2024 International Conference on Robotics and Automation in Industry (ICRAI). IEEE, 2024. https://doi.org/10.1109/icrai62391.2024.10894153.

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Qin, Chuan, Yishu Zhou, Binbin Guan, et al. "From 400G to 1600G - Cloud Scale Deployment and Intelligent Operation of Inter-Data Center Coherent Links." In Optical Fiber Communication Conference. Optica Publishing Group, 2025. https://doi.org/10.1364/ofc.2025.m4c.4.

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This paper discusses the transition from 400ZR to 1600ZR technology, emphasizing the need for robust forward error correction (FEC) mechanisms to maintain performance margins. The paper also explores intelligent operation using automated tools and AI to handle link failures, ensuring seamless data transfer and network reliability. The findings highlight the significance of 1600ZR technology in meeting the bandwidth demand and enabling next-generation AI-driven applications.
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Horn, Joseph, Dooyong Lee, Junfeng Yang, and Chengjian He. "Parameter Optimization of Dynamic Inversion Control Laws for Shipboard Operations." In Vertical Flight Society 73rd Annual Forum & Technology Display. The Vertical Flight Society, 2017. http://dx.doi.org/10.4050/f-0073-2017-12070.

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Two approaches to gains optimization of dynamic inversion control laws have been developed to facilitate the shipboard operation of rotorcraft. The first approach is a frequency-based method to optimize the tradeoff between stability margins and disturbance rejection properties; the second approach uses direct optimization of gains to enhance tracking performance in the time domain. Comparative studies show that both methods tend to use high gain design for improvement of tracking error while rejecting airwake disturbances and following station-keeping commands over a moving deck. The frequenc
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Ivler, Christina, Kevin Kalinowski, Marit Knapp, M. Mansur, and Zachariah Morford. "Flight Test of Explicit and Implicit Rotor-State Feedback Fly-By-Wire Control Laws." In Vertical Flight Society 72nd Annual Forum & Technology Display. The Vertical Flight Society, 2016. http://dx.doi.org/10.4050/f-0072-2016-11458.

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Rotor-state feedback (RSF) technology uses tip-path-plane measurements of the rotor to improve the tracking response of the aircraft in winds and turbulence, and provide improved stability margins. Three fly-by-wire control systems were designed and flight tested on the RASCAL JUH-60A aircraft to determine the benefits of RSF. A Baseline control system that used only conventional fuselage feedback but was optimized for Level 1 performance was compared to two control systems that used both rotor-state and fuselage feedback (and were also optimized for Level 1). The Implicit RSF control system i
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Franca Somers, Miss, Clément Roos, Francesco Sanfedino, Samir Bennani, and Valentin Preda. "Probabilistic stability margins and their application to AOCS validation." In ESA 12th International Conference on Guidance Navigation and Control and 9th International Conference on Astrodynamics Tools and Techniques. ESA, 2023. http://dx.doi.org/10.5270/esa-gnc-icatt-2023-089.

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Current validation and verification (V&V) activities in aerospace industry mostly rely on time-consuming simulation-based tools. These tools can give a measure of probability for sufficiently frequent phenomena, but they may fail in detecting rare but critical combinations of parameters. As the complexity of modern space systems increases, this limitation plays an ever-increasing role. In recent years, model-based worst-case analysis methods have reached a good level of maturity. Without the need of simulations, these tools can fully explore the space of all possible combinations of uncert
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Kharisov, Evgeny. "Improving Stability Margins of Rotational Vibration Feed-Forward Compensator." In ASME 2014 Conference on Information Storage and Processing Systems. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/isps2014-6951.

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This work focuses on stability analysis and design for rotational vibration feed-forward (RVFF) compensator for hard disk drive (HDD) servo control system. We consider the effect of the coupling phenomenon between the voice coil motor (VCM) control current and the rotational vibration acceleration measurements. The coupling creates an undesirable feedback loop, which affects stability of the RVFF compensator as well as it limits the achievable system performance. In this work we present a method for the parasitic coupling mitigation. This method uses self-induced coupling vibration prediction
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Halbe, Omkar, Milan Vrdoljak, Manfred Hajek, and Tim Mehling. "Synthesis and Piloted Evaluation of Advanced Rotorcraft Response-Types Using Robust Sliding Mode Control." In Vertical Flight Society 77th Annual Forum & Technology Display. The Vertical Flight Society, 2021. http://dx.doi.org/10.4050/f-0077-2021-16789.

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Sliding mode control (SMC) is a promising technique for robust control synthesis with desirable properties. This paper describes the synthesis and piloted evaluation of advanced helicopter response-types using the SMC technique. The required closed-loop response characteristics are specified as ideal, lower-order, axial transfer functions that conform to predicted level 1 handling qualities. Two-loop, full-authority, output-tracking SMC laws are then synthesized to enforce the closed-loop performance and accurately track pilot commands. Analytical proofs for SMC gain tuning are given for the c
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9

Pan, Jinwen, Omid Bagherieh, Behrooz Shahsavari, and Roberto Horowitz. "Triple-Stage Track-Following Servo Design for Hard Disk Drives." In ASME 2016 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/dscc2016-9770.

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This paper studies possible robust control design methods in triple-stage actuation settings for achieving minimum position error signal (PES) while maintaining enough stability margins. Firstly, the sensitivity-decoupling design technique, is utilized to estimate the resulting increase in low frequency disturbance attenuation and servo bandwidth. A systematic tuning methodology based on μ-synthesis is then proposed for track-following servo design of triple-stage actuation systems. In this approach, the objective is to minimize the PES, by considering all constraints and uncertainties explici
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Griffin, D., and A. G. Kelkar. "LQG-Based Robustifying Flight Control System." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-43596.

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This paper presents a robust controller design for an automatic flight control system (AFCS) for a fighter aircraft model with eight inputs and seven outputs. The controller is designed based on McFarlane-Glover robustifying technique using a simple baseline LQG design. Controllers designed purely based on traditional LQG techniques are known to have no guaranteed robustness margins. The McFarlane-Glover technique can be used to enhance the stability robustness of the baseline LQG design using a two-step design process. In the first step, an LQG controller is designed which is optimized only f
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Informes sobre el tema "Robust stability (margins) and performance"

1

Krause, James M., Pramod P. Khargonekar, and Gunter Stein. Robust Adaptive Control: Stability and Asymptotic Performance. Defense Technical Information Center, 1990. http://dx.doi.org/10.21236/ada219259.

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Balakrishnan, Venkataramanan. Robust Gain-Scheduled Nonlinear Control Design for Stability and Performance. Defense Technical Information Center, 2000. http://dx.doi.org/10.21236/ada377873.

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Yedavalli, Rama K. Robust Stability and Performance for Linear Systems with Structured and Unstructured Uncertainties. Defense Technical Information Center, 1990. http://dx.doi.org/10.21236/ada225697.

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Volpe Martincus, Christian, and Jerónimo Carballo. Is Export Promotion Effective in Developing Countries? Firm-Level Evidence on the Intensive and Extensive Margins of Exports. Inter-American Development Bank, 2010. http://dx.doi.org/10.18235/0011220.

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How effective are export promotion activities in developing countries? What are the channels through which export promotion affects firms' exports, the intensive margin or the extensive margin? Empirical evidence in this respect is scarce. We aim at filling this gap in the literature by providing evidence on the impact of export promotion on export performance using a unique firm-level dataset for Peru over the period 2001-2005. We find that export promotion actions are associated with increased exports, primarily along the extensive margin, both in terms of markets and products. This result i
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Trivelli, Carolina, Sergio Navajas, Mark D. Wenner, and Alvaro Tarazona. Managing Credit Risk in Rural Financial Institutions in Latin America. Inter-American Development Bank, 2007. http://dx.doi.org/10.18235/0008848.

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The purpose of this report is to review common credit risk management techniques used in a sample of Latin American financial institutions with agricultural portfolios, identify the factors that contribute to successful credit risk management as measured by several key financial performance indicators in order to assist donors, governments, and owners of financial institutions to promote and adopt the most efficient and robust techniques. This report also examines a sample of 42 financial institutions in Latin America that have agricultural portfolios, and identifies their principal perceived
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D’Agostino, Martin, Nigel Cook, Liam O’Connor, et al. Optimising extraction and RT-qPCR-based detection of hepatitis E virus (HEV) from pork meat and products. Food Standards Agency, 2023. http://dx.doi.org/10.46756/sci.fsa.ylv958.

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Hepatitis E is an infection of the liver caused by the hepatitis E virus (HEV). HEV infection usually produces a mild disease, hepatitis E. However, disease symptoms can vary from no apparent symptoms to liver failure. There are 4 main types (genotypes) of the virus that cause concern in humans. Genotypes 1 and 2 infections are mainly restricted to humans but 3 and 4 can be identified in numerous other animal species including pigs. Transmission routes of HEV genotypes 3 and 4 have been identified to include the consumption of food products derived from infected animals and shellfish, and via
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Event-Triggered Adaptive Robust Control for Lateral Stability of Steer-by-Wire Vehicles with Abrupt Nonlinear Faults. SAE International, 2022. http://dx.doi.org/10.4271/2022-01-5056.

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Because autonomous vehicles (AVs) equipped with active front steering have the features of time varying, uncertainties, high rate of fault, and high burden on the in-vehicle networks, this article studies the adaptive robust control problem for improving lateral stability in steer-by-wire (SBW) vehicles in the presence of abrupt nonlinear faults. First, an upper-level robust H∞ controller is designed to obtain the desired front-wheel steering angle for driving both the yaw rate and the sideslip angle to reach their correct values. Takagi-Sugeno (T-S) fuzzy modeling method, which has shown the
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