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Relevant bibliographies by topics / Active filter

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Academic literature on the topic 'Active filter'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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Journal articles on the topic "Active filter"

1

Saleem, MOHAMED Muftah. "Comparative Study between Shunt Active Filter and Hybrid Filter." مجلة الجامعة الأسمرية: العلوم التطبيقية 2, no. 2 (2017): 65–76. http://dx.doi.org/10.59743/aujas.v2i2.1111.

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This paper presents an comparative study between shunt active filter and shunt hybrid filter based on configuration system and harmonic isolation. The harmonic isolator isbased on Self Tuning Filters (STF) (it can be tuned at any frequency). The study of the active filter control is divided in two parts. The first part deals with the harmonic isolator which generates the harmonic reference currents. The second part focuses on the generation of the switching pattern of the IGBTs of the inverter by the modulated hysteresis current controller. The studied hybrid active filter consists of an activ

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Khandelwal, Achala, and Namra Joshi. "Implementation of fuzzy controller based active filter for harmonic mitigation of grid-connected PV-system." Implementation of fuzzy controller based active filter for harmonic mitigation of grid-connected PV-system 13, no. 3 (2024): 539–45. https://doi.org/10.11591/ijape.v13.i3.pp539-545.

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Incorporating photovoltaic (PV) systems to grids have developed into an obvious alternative for many countries, those results in harmonics issues for the utility operators. Harmonics arises due to extensive utilization of power-electronic components during incorporation of PV to grid. Harmonic deformation has traditionally been taken care of by the relevance of passive filter. Active filters have come up as an alternative choice over passive ones for reduction of harmonic due to existence of several advantages in comparison to previous filter. The application of controllers is the most signifi

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Mandapati, Nikhil, and Rajagopala K. "Power Quality Enhancement using A Unified Power Quality Conditioner (UPQC)." International Journal of Engineering and Advanced Technology (IJEAT) 11, no. 5 (2022): 168–70. https://doi.org/10.35940/ijeat.E3627.0611522.

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<strong>Abstract: </strong>This project proposes effective work to increase the power quality in the power system by using a Unified Power Quality Conditioner (UPQC) The advanced use of power electronic devices introduces harmonics in the power system which creates a problem in the quality of power delivered. Although several methods are there for improving power quality standards, including the use of active and passive filters, and Hybrid filters have been developed, these methods face issues and are ineffective due to the growing number of applications. The UPQC is an advanced technique for

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Suartika, I. Made, and I. Wayan Rinas. "ANALISA PENGARUH PENGGUNAAN CONTROLLER PADA FILTER AKTIF SHUNT TERHADAP PEREDAMAN DISTORSI HARMONISA." Jurnal SPEKTRUM 7, no. 4 (2020): 139. http://dx.doi.org/10.24843/spektrum.2020.v07.i04.p18.

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The types of filters used to reduce harmonic distortion are passive filters, active filtersand hybrid filters. The type of filter that usually uses the system controller is an active filter. Inthis study, an analysis of current harmonic distortion from the simulation results using matlabhaccording to the IEEE Std 519-1992 standard in existing conditions, active filter operatingconditions, active filter operation using PID controllers and active filters based on Fuzzy LogicController. The simulation results of the three models used show that the resulting THDii stillmeets the IEEE Std 519-1992

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Suhendar, Firmansyah Teguh, Maulana Alief, Zuldiag, and Dewanto Vektor. "Shunt Active Power Filter Based on P-Q Theory with Multilevel Inverters for Harmonic Current Compensation." TELKOMNIKA Telecommunication, Computing, Electronics and Control 15, no. 4 (2017): 1632–40. https://doi.org/10.12928/TELKOMNIKA.v15i4.6363.

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A shunt active power filter based on P-Q theory combined with high pass filters (HPFs) for harmonic-current compensation was proposed in this paper. A dual level H-bridge inverter (DLHI) and clamp diode multilevel inverter (CDMI) as inverters was used. The proposed active power filter was applied to 3-phase power system with 220V voltage and 50Hz frequency. the simulation model was constructed by using Simulink MATLAB. The results show that the proposed active power filter with CDMI produces lower total harmonic distortion (THD) than the active power filters with DLHI. Additionally, the propos

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Paul, P. Jeno. "Shunt Active and Series Active Filters-Based Power Quality Conditioner for Matrix Converter." Advances in Power Electronics 2011 (July 11, 2011): 1–9. http://dx.doi.org/10.1155/2011/930196.

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This paper proposes a series active filter and shunt active filter to minimize the power quality impact present in matrix converters instead of passive filter. A matrix converter produces significant harmonics and nonstandard frequency components into load. The proposed system compensates the sag and swell problems efficiently in matrix converter. The proposed system has been tested and validated on the matrix converter using MATLAB/Simulink software. Simulated results confirm that the active power filters can maintain high performance for matrix converter.

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Dethan, Jacob, Abidin Abidin, Benny Daniawan, and Rino Rino. "Enhanced Active Filter for Single-Phase Controlled Rectifier Applications." IJEIS (Indonesian Journal of Electronics and Instrumentation Systems) 10, no. 2 (2020): 143. http://dx.doi.org/10.22146/ijeis.60722.

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Active filter can be used to increase the performance of single-phase controlled rectifier by reducing the generated ripple and harmonic distortion. Active filter can also increase power factor and efficiency of thyristor. In this work, active filter was designed by using NPN Bipolar Junction Transistor (BJT) compared with active filter created by utilizing NPN Metal Oxide Semiconductor Field Effect Transistor (MOSFET). The obtained efficiency of BJT based active filter with firing angles of 0° to 90° were 87.01% - 96.67%. Whereas, MOSFET based active filter produced comparable efficiency betw

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BURBELO, Mykhailo, Denys LEBED, and Oleksandr LESHCHENKO. "OPTIMIZATION OF CHARGE / DISCHARGE TIME OF ACTIVE FILTER CAPACITORS DURING VOLTAGE FLUCTUATIONS." Herald of Khmelnytskyi National University. Technical sciences 309, no. 3 (2022): 119–24. http://dx.doi.org/10.31891/2307-5732-2022-309-3-119-124.

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A voltage regulator on capacitors has been developed for the control circuit of a parallel active filter based on dq-theory with a block of sliding averaging current in the current control circuit i_d. It contains a delay unit, a digital low-pass filter of the first order FIR or IIR (depending on the variant of the considered scheme) and the unit “sgn”, which stabilizes the output signal. The voltage control circuit on the capacitor can be implemented entirely in digital signal processing and used instead of the analog PID controller, which is much more effective if you need to adapt the circu

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BURBELO, Mykhailo, Denys LEBED, and Oleksandr LESHCHENKO. "OPTIMIZATION OF CHARGE / DISCHARGE TIME OF ACTIVE FILTER CAPACITORS DURING VOLTAGE FLUCTUATIONS." Herald of Khmelnytskyi National University. Technical sciences 311, no. 4 (2022): 58–63. http://dx.doi.org/10.31891/2307-5732-2022-311-4-58-63.

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A voltage regulator on capacitors has been developed for the control circuit of a parallel active filter based on dq-theory with a block of sliding averaging current in the current control circuit i_d. It contains a delay unit, a digital low-pass filter of the first order FIR or IIR (depending on the variant of the considered scheme) and the unit “sgn”, which stabilizes the output signal. The voltage control circuit on the capacitor can be implemented entirely in digital signal processing and used instead of the analog PID controller, which is much more effective if you need to adapt the circu

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Al-Ali, Abdulrahman Khalaf, Muhammad Taher Abuelma'atti, and Rizwan Ali Tiwana. "Programmable OTA-Based Multifunction Active Filter." Active and Passive Electronic Components 17, no. 1 (1994): 21–27. http://dx.doi.org/10.1155/1994/10413.

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A fully programmable multifunction filter is presented. The filter uses four operational transconductance amplifiers and two capacitors. Analog switches are used to control the filter transfer function through a microcontroller. The user is provided control over the cutoff (or centre) frequency of the filter by controlling the auxiliary bias currents of the operational transconductance amplifiers via digital-to-analog converters. The circuit can simultaneously provide three programmable transfer functions in a single structure and can realize all the standard second-order filters. The circuit

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Dissertations / Theses on the topic "Active filter"

1

Chow, Albert C. (Albert Chin-Hoa) 1977. "Active filter techniques for reducing EMI filter capacitance." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/87314.

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Othman, Mohd Ridzal. "DSP-based active power filter." Thesis, Loughborough University, 1998. https://dspace.lboro.ac.uk/2134/6966.

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Harmonics in systems are conventionally suppressed using passive tuned filters, which have practical limitations in terms of the overall cost, size and performance, and these are particularly unsatisfactory when large number of harmonics are involved Active power filtering is an alternative approach in which the filter injects suitable compensation currents to cancel the harmonic currents, usually through the use of power electronic converters. This type of filter does not exhibit the drawbacks normally associated with its passive counterpart, and a large number of harmonics can be compensated

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Van, Greunen Corneluis Erasmus. "Neutral-point-clamped shunt active filter." Thesis, Link to the online version, 2005. http://hdl.handle.net/10019/1265.

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Cheng, Louis. "Efficient DSP-based active power filter." Thesis, Teesside University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410837.

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Wu, Yue. "Active filter design for wireless communications /." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486474078051051.

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Towliat, Abolhassani Mehdi. "Integrated electric alternators/active filters." Diss., Texas A&M University, 2004. http://hdl.handle.net/1969.1/268.

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In response to energy crisis and power quality concerns, three different methodologies to integrate the concept of active filtering into the alternators are proposed. Wind energy, due to its free availability and its clean and renewable character, ranks as the most promising renewable energy resource that could play a key role in solving the worldwide energy crisis. An Integrated Doubly-fed Electric Alternator/Active filter (IDEA) for wind energy conversion systems is proposed. The proposed IDEA is capable of simultaneous capturing maximum power of wind energy and improving power quality, whic

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Abolhassani, Mehdi Towliat. "Integrated electric alternators/active filters." Texas A&M University, 2004. http://hdl.handle.net/1969.1/268.

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In response to energy crisis and power quality concerns, three different methodologies to integrate the concept of active filtering into the alternators are proposed. Wind energy, due to its free availability and its clean and renewable character, ranks as the most promising renewable energy resource that could play a key role in solving the worldwide energy crisis. An Integrated Doubly-fed Electric Alternator/Active filter (IDEA) for wind energy conversion systems is proposed. The proposed IDEA is capable of simultaneous capturing maximum power of wind energy and improving power quality, whic

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Tu, Yifeng. "Multiple Reference Active Noise Control." Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/36790.

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The major application of active noise control (ANC) has been focused on using a single reference signal; the work on multiple reference ANC is very scarce. Here, the behavior of multiple reference ANC is analyzed in both the frequency and time domain, and the coherence functions are provided to evaluate the effectiveness of multiple reference ANC. When there are multiple noise sources, multiple reference sensors are needed to generate complete reference signals. A simplified method combines those signals from multiple reference sensors into a single reference signal. Although this method cou

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Shadrin, Aleksandr. "Analogové pole pro realizaci programovatelného filtru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-221026.

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The state-variable analog filter topologies are described. Using the transfer function theory and operational configurations suitable for integration and derivation, a new universal filter topology are proposed. The circuit has been implemented in CMOS technology by using six operational amplifiers, eight analog switches and five programming resistor array. Tunable corner frequencies, quality factors and gain are realized. Using the serial peripheral interface or digital memory can be realized this real-time digitally programmable first- and second-order analog filter with the tunable paramete

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Ozkaya, Hasan. "Parallel Active Filter Design, Control, And Implementation." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608438/index.pdf.

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The parallel active filter (PAF) is the modern solution for harmonic current mitigation and reactive power compensation of nonlinear loads. This thesis is dedicated to detailed analysis, design, control, and implementation of a PAF for a 3- phase 3-wire rectifier load. Specifically, the current regulator and switching ripple filter (SRF) are thoroughly investigated. A novel discrete time hysteresis current regulator with multi-rate current sampling and flexible PWM output, DHCR3, is proposed. DHCR3 exhibits a high bandwidth while limiting the maximum switching frequency for thermal stability a

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Books on the topic "Active filter"

1

Waters, Allan. Active filter design. McGraw-Hill, 1991.

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Waters, Allan. Active Filter Design. Macmillan Education UK, 1991. http://dx.doi.org/10.1007/978-1-349-21311-5.

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Jean-Claude, Berka, ed. Active RC filter design. Elsevier, 1986.

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1940-, Taylor Fred J., ed. Electronic filter design handbook: LC, active, and digital filters. 2nd ed. McGraw-Hill, 1988.

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W, Stephenson F., ed. RC active filter design handbook. Wiley, 1985.

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Yichuang, Sun, and Fidler J. K, eds. Continuous-time active filter design. CRC Press, 1999.

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Lancaster, Don. Don Lancaster's active-filter cookbook. 2nd ed. Newnes, 1996.

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Haiqiao, Xiao, and Van Valkenburg, M. E. (Mac Elwyn), 1921-1997, eds. Analog filter design. 2nd ed. Oxford University Press, 2010.

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Huelsman, Lawrence P. Active and passive analog filter design: An introduction. McGraw-Hill, 1993.

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Ghausi, Mohammed Shuaib. Modern filter design: Active RC and switched capacitor. Noble, 2003.

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Book chapters on the topic "Active filter"

1

Weik, Martin H. "active filter." In Computer Science and Communications Dictionary. Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_241.

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Waters, Allan. "Filter Types." In Active Filter Design. Macmillan Education UK, 1991. http://dx.doi.org/10.1007/978-1-349-21311-5_2.

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Waters, Allan. "Basic Filter Circuits." In Active Filter Design. Macmillan Education UK, 1991. http://dx.doi.org/10.1007/978-1-349-21311-5_4.

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Waters, Allan. "Biquadratic Filter Circuits." In Active Filter Design. Macmillan Education UK, 1991. http://dx.doi.org/10.1007/978-1-349-21311-5_5.

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Massoud, Ahmed M., Shehab Ahmed, and Ayman S. Abdel-Khalik. "Active Power Filter." In Power Electronics for Renewable Energy Systems, Transportation and Industrial Applications. John Wiley & Sons, Ltd, 2014. http://dx.doi.org/10.1002/9781118755525.ch17.

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Waters, Allan. "Introduction." In Active Filter Design. Macmillan Education UK, 1991. http://dx.doi.org/10.1007/978-1-349-21311-5_1.

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Waters, Allan. "The Operational Amplifier." In Active Filter Design. Macmillan Education UK, 1991. http://dx.doi.org/10.1007/978-1-349-21311-5_3.

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Waters, Allan. "Passive Filter Circuit Design." In Active Filter Design. Macmillan Education UK, 1991. http://dx.doi.org/10.1007/978-1-349-21311-5_6.

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Waters, Allan. "Gyrator-based Filter Circuits." In Active Filter Design. Macmillan Education UK, 1991. http://dx.doi.org/10.1007/978-1-349-21311-5_7.

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Waters, Allan. "Sensitivity." In Active Filter Design. Macmillan Education UK, 1991. http://dx.doi.org/10.1007/978-1-349-21311-5_8.

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Conference papers on the topic "Active filter"

1

Ryad, Mebarek Abdessalem, Merabet Leila, Rahli Chouab, and Benchouia Mohamed Toufik. "Active Current Method-Based Adaptive Linear Filter For Five-Level Neutral Point Clamped Shunt Active Power Filter." In 2024 International Conference on Advances in Electrical and Communication Technologies (ICAECOT). IEEE, 2024. https://doi.org/10.1109/icaecot62402.2024.10828585.

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Mihajlović, Biljana, Marina Ilić, Tatjana Marković, and Vukica Grković. "Impact of active filler composition modification on the sorption characteristics of filters." In 11th International Scientific Conference on Defensive Technologies - OTEX 2024. Military Technical Institute, Belgrade, 2024. http://dx.doi.org/10.5937/oteh24114m.

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To expand the protection range of filters against industrial chemical agents, with a focus on carbon monoxide, beyond the protection offered by the existing M3 and CBRN filters, a new alternative filter, named CO CBRN ESC Filter, was developed with a modified active filler composition. In accordance with defined requirements and existing equipment, the laboratory testing was conducted to evaluate the effect of the modified active filler composition in the CO CBRN ESC Filter on the sorption characteristics, specifically regarding protection against NBC agents and industrial toxic chemicals. The

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Kim, Ho-Wuk, and Sang-Kwon Lee. "Adaptive IIR Filter Using Variable Step Size for Active Noise Control Inside a Short Duct." In ASME 2008 Noise Control and Acoustics Division Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ncad2008-73062.

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FIR filter for a adaptive filter algorithm, is mostly used for an active noise control system. However, FIR filter needs to have more large size of the filter length than it of IIR filter. Therefore, the control system using FIR adaptive filter has slow calculation time. In the active noise control system of the short duct, the reference signal can be affected by the output signal, so IIR filter for ARMA system can be more suitable for the active noise control of the short duct than FIR filter for MA system. In this paper, the recursive LMS filter, which is adaptive IIR filter, is applicated f

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Buyuk, Mehmet, Adnan Tan, Mustafa Inci, and Mehmet Tumay. "A notch filter based active damping of llcl filter in shunt active power filter." In 2017 International Symposium on Power Electronics (Ee). IEEE, 2017. http://dx.doi.org/10.1109/pee.2017.8171701.

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Ketzer, Marcos B., and Cursino B. Jacobina. "Sensorless PWM rectifiers with active filter action." In 2015 IEEE 24th International Symposium on Industrial Electronics (ISIE). IEEE, 2015. http://dx.doi.org/10.1109/isie.2015.7281502.

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Tutaj, Andrzej, Pawel Piatek, Waldemar Bauer, et al. "Approximating Fractional Filters With Analogue Active Filter Structures." In 2019 42nd International Conference on Telecommunications and Signal Processing (TSP). IEEE, 2019. http://dx.doi.org/10.1109/tsp.2019.8768817.

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Pantoli, L., V. Stornelli, and G. Leuzzi. "High efficiency active filter." In 2017 Integrated Nonlinear Microwave and Millimetre-wave Circuits Workshop (INMMiC). IEEE, 2017. http://dx.doi.org/10.1109/inmmic.2017.7927303.

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Kaltiokallio, Mikko, Jussi Ryynanen, and Saska Lindfors. "Active polyphase filter analysis." In 2010 IEEE International Symposium on Circuits and Systems - ISCAS 2010. IEEE, 2010. http://dx.doi.org/10.1109/iscas.2010.5537327.

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Wachirarattanapornkul, Sorapong. "Active DURC notch filter." In 2014 4th Joint International Conference on Information and Communication Technology, Electronic and Electrical Engineering (JICTEE). IEEE, 2014. http://dx.doi.org/10.1109/jictee.2014.6804122.

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Sitar, J., V. Racek, P. Bauer, and R. Hartansky. "Active filter stabilization methods." In 2010 International Power Electronics Conference (IPEC - Sapporo). IEEE, 2010. http://dx.doi.org/10.1109/ipec.2010.5544606.

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Reports on the topic "Active filter"

1

Delagrange, Arthur D. An Active Filter Primer, Mod 2. Defense Technical Information Center, 1987. http://dx.doi.org/10.21236/ada197538.

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Giurgiutiu, Victor, and Jingjing Bao. PWAS EMIS-ECIS Active Carbon Filter Residual Life Estimation Methodology. Defense Technical Information Center, 2013. http://dx.doi.org/10.21236/ada617286.

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Igarashi, Tatsuki, and Mori Ishii. Improvement of an Active Regeneration DPF System by Using a SiC Honeycomb Filter. SAE International, 2005. http://dx.doi.org/10.4271/2005-08-0149.

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Thangaraj, Rammohan, Sathish Kumar Shanmugam, Sivachitra Muthusamy, Radhamani Vijayakumar, Asha Aiyappan, and Hariprabhu Manoharan. Power Quality Improvement Based on Shunt Active Filter for Harmonic Suppression Using Neuro-Fuzzy. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, 2021. http://dx.doi.org/10.7546/crabs.2021.08.12.

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Kanagavel, Rameshkumar, and Indragandhi Vairavasundaram. FPGA Implementation and Investigation of Hybrid Artificial Bee Colony Algorithm-based Single Phase Shunt Active Filter. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, 2020. http://dx.doi.org/10.7546/crabs.2020.05.13.

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Pedemonte, Mathieu, Hiroshi Toma, and Esteban Verdugo. Aggregate Implications of Heterogeneous Inflation Expectations: The Role of Individual Experience. Inter-American Development Bank, 2025. https://doi.org/10.18235/0013495.

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We explore the implications of heterogeneous, history-dependent inflation expectations in a general equilibrium setting. We propose an experience-based expectations-augmented Kalman filter to represent consumers' heterogeneous inflation expectations, where heterogeneity arises from an anchoring-to-the-past mechanism. Using survey data, we show that the model replicates US consumers' inflation expectations and their heterogeneity across cohorts. We introduce this mechanism into a New Keynesian model and find that heterogeneous expectations anchor aggregate responses to the agents' inflation his

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Pedemonte, Mathieu O., Hiroshi Toma, and Esteban Verdugo. Aggregate implications of heterogeneous inflation expectations: the role of individual experience. Federal Reserve Bank of Cleveland, 2023. http://dx.doi.org/10.26509/frbc-wp-202304.

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We show that inflation expectations are heterogeneous and depend on past individual experiences. We propose a diagnostic expectations-augmented Kalman filter to represent consumers’ heterogeneous inflation expectations-formation process, where heterogeneity comes from an anchoring-to-the-past mechanism. We estimate the diagnosticity parameter that governs the inflation expectations-formation process and show that the model can replicate systematic differences in inflation expectations across cohorts in the US. We introduce this mechanism into a New Keynesian model and find that heterogeneous e

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Thanyasrisung, Panida, Aemvika Vittayaprasit, Voravee Hoven, Sugai, Motoyuki, and Oranart Matangkasombut. Rapid detection of mutans streptococci by substrate specific binding of automutanolysin : Final report. Faculty of Dentistry, Chulalongkorn University, 2016. https://doi.org/10.58837/chula.res.2016.19.

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Chair-side rapid detection of mutans streptococci is an important aid to clinical dental caries risk assessment. Rapid Streptococcus mutans detection tools are available on the market but there are a small number. Automutanolysin (Aml) is a peptidoglycan hydrolase whose cell wall-binding domain (CWBD) has substrate-specificity towards mutans streptococci. This study aims to develop a rapid detection assay using CWBD conjugated with horseradish peroxidase (HRP). However, the recombinant protein was as insoluble form. Therefore, magnetic nanoparticles were used as an alternative reporter to conj

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Dagenais, Mario. Active Optical Filters for Spectral Processing (AASERT). Defense Technical Information Center, 1995. http://dx.doi.org/10.21236/ada301964.

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Chang, Chi-Yang, and Tatsuo Itoh. Microwave Active Filters Based on Coupled Negative Resistance Method. Defense Technical Information Center, 1990. http://dx.doi.org/10.21236/ada223269.

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