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Relevant bibliographies by topics / Chen system

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Academic literature on the topic 'Chen system'

Author: Grafiati

Published: 28 June 2021

Last updated: 21 June 2025

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Journal articles on the topic "Chen system"

1

Llibre, Jaume, and Ana Rodrigues. "On the Dynamics of the Unified Chaotic System Between Lorenz and Chen Systems." International Journal of Bifurcation and Chaos 25, no. 09 (2015): 1550122. http://dx.doi.org/10.1142/s0218127415501229.

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A one-parameter family of differential systems that bridges the gap between the Lorenz and the Chen systems was proposed by Lu, Chen, Cheng and Celikovsy. The goal of this paper is to analyze what we can say using analytic tools about the dynamics of this one-parameter family of differential systems. We shall describe its global dynamics at infinity, and for two special values of the parameter a we can also describe the global dynamics in the whole ℝ3using the invariant algebraic surfaces of the family. Additionally we characterize the Hopf bifurcations of this family.

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Inagi, Shinsuke, Yulin Shi, Elena Villani, and Guobao Xu. "Electropolymerization of Pyrrole Using a Single-Electrode Electrochemical System." ECS Meeting Abstracts MA2024-01, no. 41 (2024): 2339. http://dx.doi.org/10.1149/ma2024-01412339mtgabs.

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Bipolar electrochemistry emerges as an appealing technique for gradient surface fabrication thanks to the controllable potential distribution on bipolar electrodes (BPEs) in a wireless manner [1]. Here we report a BPE array named the single-electrode electrochemical system (SEES) [2] for the high-throughput electrosynthesis of gradient polypyrrole (PPy) films via electropolymerization. The SEES consists of a plastic board with holes attached to an indium-tin oxide (ITO) electrode to create multiple microelectrochemical cell arrays. Benefiting from this technique, the effects of various electrolysis conditions on film growth, such as applied voltage, electrodeposition time and electrolyte, etc., were systematically investigated. The length, thickness, surface morphology, and wettability, of the obtained PPy films were investigated [3]. The SEES provides a straightforward comparison of experimental results and hence facilitates the condition screening process. References: N. Shida, Y. Zhou, S. Inagi, Acc. Chem. Res., 2019, 52, 2598. W. Gao, K. Muzyka, X. Ma, B. Lou, G. Xu, Chem. Sci., 2018, 9, 3911. Y. Shi, E. Villani, Y. Chen, Y. Zhou, Z. Chen, A. Hussain, G. Xu, S. Inagi, Anal. Chem., 2023, 95, 1532.

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ELABBASY, E. M., H. N. AGIZA, and M. M. EL-DESSOKY. "SYNCHRONIZATION OF MODIFIED CHEN SYSTEM." International Journal of Bifurcation and Chaos 14, no. 11 (2004): 3969–79. http://dx.doi.org/10.1142/s0218127404011740.

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This paper addresses the synchronization problem of two modified Chen systems in the presence of unknown system parameters. One-way coupling and active control laws are applied to achieve the state synchronization of two identical modified Chen systems. Based on Lyapunov stability theory, active control laws are derived such that the two modified Chen systems are to be synchronized. Numerical simulations results are used to demonstrate the effectiveness of the proposed control methods.

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4

Huang, Qiujian, Aimin Liu, and Yongjian Liu. "Jacobi Stability Analysis of the Chen System." International Journal of Bifurcation and Chaos 29, no. 10 (2019): 1950139. http://dx.doi.org/10.1142/s0218127419501396.

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In this paper, the research of the Jacobi stability of the Chen system is performed by using the KCC-theory. By associating a nonlinear connection and a Berwald connection, five geometrical invariants of the Chen system are obtained. The Jacobi stability of the Chen system at equilibrium points and a periodic orbit is investigated in terms of the eigenvalues of the deviation curvature tensor. The obtained results show that the origin is always Jacobi unstable, while the Jacobi stability of the other two nonzero equilibrium points depends on the values of the parameters. And a periodic orbit of the Chen system is proved to be also Jacobi unstable. Furthermore, Jacobi stability regions of the Chen system and the Lorenz system are compared. Finally, the dynamical behavior of the components of the deviation vector near the equilibrium points is also discussed.

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LÜ, JINHU, GUANRONG CHEN, DAIZHAN CHENG, and SERGEJ CELIKOVSKY. "BRIDGE THE GAP BETWEEN THE LORENZ SYSTEM AND THE CHEN SYSTEM." International Journal of Bifurcation and Chaos 12, no. 12 (2002): 2917–26. http://dx.doi.org/10.1142/s021812740200631x.

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This paper introduces a unified chaotic system that contains the Lorenz and the Chen systems as two dual systems at the two extremes of its parameter spectrum. The new system represents the continued transition from the Lorenz to the Chen system and is chaotic over the entire spectrum of the key system parameter. Dynamical behaviors of the unified system are investigated in somewhat detail.

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MA, CHAO, and XINGYUAN WANG. "BRIDGE BETWEEN THE HYPERCHAOTIC LORENZ SYSTEM AND THE HYPERCHAOTIC CHEN SYSTEM." International Journal of Modern Physics B 25, no. 05 (2011): 711–21. http://dx.doi.org/10.1142/s0217979211057967.

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This paper presents a novel unified hyperchaotic system that contains the hyperchaotic Lorenz system and the hyperchaotic Chen system as two dual systems at the two extremes of its parameter spectrum. The new system is hyperchaotic over almost the whole range of the system parameter and continuously transfers from the hyperchaotic Lorenz system to the hyperchaotic Chen system. The new findings are not only demonstrated by computer simulations but also verified with bifurcation analysis, Lyapunov exponents and Lyapunov dimension.

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Aminikhah, H., A. Refahi Sheikhani, and H. Rezazadeh. "Stability Analysis of Distributed Order Fractional Chen System." Scientific World Journal 2013 (2013): 1–13. http://dx.doi.org/10.1155/2013/645080.

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We first investigate sufficient and necessary conditions of stability of nonlinear distributed order fractional system and then we generalize the integer-order Chen system into the distributed order fractional domain. Based on the asymptotic stability theory of nonlinear distributed order fractional systems, the stability of distributed order fractional Chen system is discussed. In addition, we have found that chaos exists in the double fractional order Chen system. Numerical solutions are used to verify the analytical results.

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Zheng, Jie, Shao Juan Ma, and Duan Dong. "Chaos Control of the Fractional Order Stochastic Chen System." Advanced Materials Research 694-697 (May 2013): 2130–33. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.2130.

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In this paper, we study chaos control of the fractional order Chen system with the bounded random parameter. Firstly, we transform the fractional order Chen system with random parameter into an equivalent deterministic system by the orthogonal polynomial approximation. Secondly, based on Routh-Hrwitz criterion, the derivative feedback control laws are applied to fractional order equivalent deterministic Chen system. Lastly, numerical simulations show that the control method is effective and feasible.

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WANG, XINGYUAN, MIN XU, and HUAGUANG ZHANG. "TWO ADAPTIVE SYNCHRONIZATION METHODS OF UNCERTAIN CHEN SYSTEM." International Journal of Modern Physics B 23, no. 26 (2009): 5163–69. http://dx.doi.org/10.1142/s0217979209053527.

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This article addresses the adaptive synchronization problem of two Chen systems with uncertain parameters. Two adaptive synchronization methods are designed. In the two methods, we use only two controllers to synchronize uncertain Chen systems. It is theoretically proved that these two methods can make uncertain Chen systems asymptotically synchronized and identify the unknown parameters. Numerical simulations show the effectiveness of the proposed methods further. The comparisons of these two methods show: The method of theorem 1 is easier and more feasible than that of theorem 2, and the synchronization results are better.

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WANG, XINGYUAN, and XIANGJUN WU. "PARAMETER IDENTIFICATION AND ADAPTIVE SYNCHRONIZATION OF UNCERTAIN HYPERCHAOTIC CHEN SYSTEM." International Journal of Modern Physics B 22, no. 08 (2008): 1015–23. http://dx.doi.org/10.1142/s0217979208039034.

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This paper studies the adaptive synchronization and parameter identification of an uncertain hyperchaotic Chen system. Based on the Lyapunov stability theory, an adaptive control law is derived to make the states of two identical hyperchaotic Chen systems asymptotically synchronized. With this approach, the synchronization and parameter identification of the hyperchaotic Chen system with five uncertain parameters can be achieved simultaneously. Theoretical proof and numerical simulations demonstrate the effectiveness and feasibility of the proposed scheme.

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Dissertations / Theses on the topic "Chen system"

1

Si, Tou Wai Meng. "An Investigation of the dynamic behaviors of the chaotics Chen-Lee system." Thesis, University of Macau, 2007. http://umaclib3.umac.mo/record=b1694327.

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Chen, Chen [Verfasser], Alois [Akademischer Betreuer] Knoll, Heinz-Erich [Akademischer Betreuer] Wichmann, and Alexander [Akademischer Betreuer] Horsch. "A multimodal biosensor-based system with compatibility for telemonitoring and epidemiological services / Chen Chen. Betreuer: Alois Knoll. Gutachter: Alois Knoll ; Heinz-Erich Wichmann ; Alexander Horsch." München : Universitätsbibliothek der TU München, 2016. http://d-nb.info/1097547566/34.

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Chen, Zhao [Verfasser], and N. [Akademischer Betreuer] Goldscheider. "Modeling a geologically complex karst aquifer system, Hochifen-Gottesacker, Alps / Zhao Chen ; Betreuer: N. Goldscheider." Karlsruhe : KIT-Bibliothek, 2017. http://d-nb.info/1136660852/34.

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Freier, Matthias [Verfasser], and J. J. [Akademischer Betreuer] Chen. "Analysis of Real-Time Capabilities of Dynamic Scheduled System / Matthias Freier. Betreuer: J.-J. Chen." Karlsruhe : KIT-Bibliothek, 2016. http://d-nb.info/1113109300/34.

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Chen, Si [Verfasser], and Ana [Akademischer Betreuer] Martin-Villalba. "The CD95/CD95L signaling system in developmental and tumor angiogenesis of the central nervous system / Si Chen ; Betreuer: Ana Martin-Villalba." Heidelberg : Universitätsbibliothek Heidelberg, 2018. http://d-nb.info/1177688484/34.

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Chen, Yuling Verfasser], and Thomas [Akademischer Betreuer] [Jungbluth. "Biomethane production in an innovative two-phase pressurized anaerobic digestion system / Yuling Chen. Betreuer: Thomas Jungbluth." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2015. http://d-nb.info/1070580546/34.

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Yin, Qitao [Verfasser], and Li [Akademischer Betreuer] Chen. "Mean field limit of many particle system with non-Lipschitz force / Qitao Yin ; Betreuer: Li Chen." Mannheim : Universitätsbibliothek Mannheim, 2019. http://d-nb.info/1192664019/34.

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Chen, Yi-Ju. "A novel quantification of the relationship between blood sugar and stress / Y.J. Chen." Thesis, North-West University, 2008. http://hdl.handle.net/10394/2633.

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Chen, Tao [Verfasser], and Stefan van [Akademischer Betreuer] Waasen. "Model-driven development methodology applied to real-time MEG signal pre-processing system design / Tao Chen ; Betreuer: Stefan van Waasen." Duisburg, 2019. http://d-nb.info/1191692027/34.

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Chen, Hans [Verfasser], and M. [Akademischer Betreuer] Heilmaier. "Gefüge und Eigenschaften von äquiatomaren Legierungen aus dem System Ta-Nb-Mo-Cr-Ti-Al / Hans Chen ; Betreuer: M. Heilmaier." Karlsruhe : KIT-Bibliothek, 2020. http://d-nb.info/1208296787/34.

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Books on the topic "Chen system"

1

Bachman, David M. Chen Yun and the Chinese political system. Institute of East Asian Studies, University of California, Berkeley, Center for Chinese Studies, 1985.

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2

Wu, Caicong. Bei dou zai nong ye sheng chan guo cheng zhong de ying yong. Dian zi gong ye chu ban she, 2016.

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Center, Buddhist Digital Resource. Lam 'bras gzung rdo rje'i tshig rkang gi rnam 'grel bcu gcig: Commentaries of sa-chen kun-dga'-snin-po on the root text of the lam 'bras system written at the behest of various disciples. Sakya centre, 1985.

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Center, Buddhist Digital Resource. Nges don phyag rgya chen poʼi sgom rim gsal bar byed pa legs bshad zla baʼi ʼod zer: The explanation of the essential meditational system and practice of the mahamudra according to the marpa kagyu tradition. Drikung kagyu publications, 2004.

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Zhang, Wei. GSM wang luo you hua: Yuan li yu gong cheng. Ren min you dian chu ban she, 2003.

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United States Personal Chef Association. The United States Personal Chef Association presents The deluxe 2000 personal chef service training system. The Association, 1998.

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Lin, Lin. Flash ji chu jiao cheng. Qing hua da xue chu ban she, 2004.

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Vavrenyuk, Aleksandr, Viktor Makarov, and Stanislav Kutepov. Operating systems. UNIX bases. INFRA-M Academic Publishing LLC., 2016. http://dx.doi.org/10.12737/11186.

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In the manual basics command interfey-are covered са operating systems of UNIX family. Much attention is paid to practical use of teams of system and opportunities of language programming, shell provided by a cover. In a grant vklyu- Chena also some sections devoted to bases administrirova- niya and to network means of OS. At the end of each section there are questions for self-checking, the appendix contains a large number at - mayors of writing of shell-procedures. The manual is addressed to the students studying the modern information technologies according to programs of a bachelor degree, and also all, who wants to master the OS command interface of family independently UNIX in the shortest possible time. The edition can also be used as the short reference book on wasps - new UNIX OS.

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zhu, Wang Yun Bian, Huang Xiaotong Bian zhu, and Yang Zhizhuo Bian zhu, eds. Wang luo gong cheng she ji yu xi tong ji cheng: Network engineering design and system integration. 2nd ed. Ren min you dian chu ban she, 2010.

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Zhixue, Wu. Yun cun chu xi tong: Swift de yuan li,Jia gou ji shi jian = The cloud storage system. Ren min you dian chu ban she, 2015.

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Book chapters on the topic "Chen system"

1

He, Hongjun, Yan Cui, Chenhui Lu, and Guan Sun. "Time Delay Chen System Analysis and Its Application." In Advances in Mechanical Design. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9941-2_17.

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Leimgruber, Jakob R. E., and Sofia Rüdiger. "Discourse-pragmatic like in East Asian Englishes." In Hamburg Studies on Linguistic Diversity. John Benjamins Publishing Company, 2025. https://doi.org/10.1075/hsld.9.14lei.

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Abstract The multilingual ecology of Taiwan includes the official language Mandarin, the vernaculars Hokkien and Hakka, as well as several Aboriginal Austronesian languages. In this context, English has emerged as an important additional language, not least in the education system. Research on English in Taiwan has thus far largely been restricted to the educational setting (Chen 2006; Chien 2014; Kao & Tsou 2017; Wu & Lau 2019) or to the function of English as an international language (Chen 2006). Some, such as Seilhamer (2015; 2019), have focused on the sociolinguistic realities of English on the island, bringing the issue of language ‘ownership’ to the foreground. This, combined with recurring proposals to elevate English to co-official status (Chen, Shih, Yeh & Lee 2018), suggests considerable societal importance attached to the language. However, much less is known about the actual form and structure of Taiwanese English. In this chapter, we present data from a 76,000-word pilot version of the Taiwanese Spoken English corpus (TASE, see Rüdiger, Leimgruber & Tseng 2023). Taking previous studies of spoken South Korean English into account (Rüdiger 2019; 2021; Rüdiger, Leimgruber & Tseng 2023), we present a case study of discourse-pragmatic uses of like by Taiwanese speakers of English. Our findings suggest that the functional range of like is similar in Taiwan and South Korea and that discourse-pragmatic like also forms part of Taiwanese English speakers’ repertoire.

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Peng, Jun, and Shangzhu Jin. "Designing Key-Dependent S-Boxes Using Hyperchaotic Chen System." In Lecture Notes in Electrical Engineering. Springer London, 2013. http://dx.doi.org/10.1007/978-1-4471-4856-2_89.

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Agarwal, Meenakshi, Arvind, and Ram Ratan. "Analysis of Bao-Zhou-Chen-Liu’s Hybrid Chaotic System." In Soft Computing: Theories and Applications. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9858-4_26.

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Liu, Zhen, Wen-Xian Xiao, Ji-Tian Wang, and Wen-Long Wan. "The Analysis of Fractional Chen Chaotic System Composite Structure." In Communications in Computer and Information Science. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-24999-0_79.

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Vaidyanathan, Sundarapandian. "Adaptive Controller and Synchronizer Design for the Qi-Chen Chaotic System." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27308-7_13.

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Rantala, Ari, and Daniel Kim. "Implementing Wireless Electrolytic Cell Monitoring System at Kennecott Utah Copper for Improved Operational Efficiency." In T.T. Chen Honorary Symposium on Hydrometallurgy, Electrometallurgy and Materials Characterization. John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118364833.ch6.

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He, Chenchen, and Zhong Chen. "A New Encryption Scheme Based on RSA Encryption Algorithm and Chen Chaotic System." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-6901-0_91.

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Pallav, Himesh Handa, and Sumit Sharma. "Stabilization and synchronization of Chen–Lee chaotic system using sliding mode control approach." In Artificial Intelligence and Machine Learning Applications for Sustainable Development. CRC Press, 2024. https://doi.org/10.1201/9781003581246-10.

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Shaohua, Ju, Zhang Libo, Peng Jin-hui, et al. "Extraction Impurities such as Fe, Ca and Mg from a Titanium Material in Chloride Acid System with Microwave Eenergy Leaching." In T.T. Chen Honorary Symposium on Hydrometallurgy, Electrometallurgy and Materials Characterization. John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118364833.ch29.

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Conference papers on the topic "Chen system"

1

Venkatesh, G. S. "Compositions of Chen–Fliess Series & Zinbiel Algebras." In 2024 28th International Conference on System Theory, Control and Computing (ICSTCC). IEEE, 2024. http://dx.doi.org/10.1109/icstcc62912.2024.10744650.

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Amir, Nur Afiqah Suzelan, Fatin Nabila Abd Latiff, and Kok Bin Wong. "A Secure Vehicular Communication Protocol Using Synchronization of Chen Chaotic System." In 2024 16th International Conference on Information Technology and Electrical Engineering (ICITEE). IEEE, 2024. https://doi.org/10.1109/icitee62483.2024.10808701.

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Lotfy, Rana, Mohamed Gabr, Eyad Mamdouh, et al. "Image Encryption Based on Chen Chaotic System, OpenSSL S-Box and the Fibonacci Q-Matrix." In 2024 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA). IEEE, 2024. http://dx.doi.org/10.23919/spa61993.2024.10715634.

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Boudaghi, Farnaz, and Luis A. Duffaut Espinosa. "Extending the Execution Time of Chen-Fliess Series." In 2025 59th Annual Conference on Information Sciences and Systems (CISS). IEEE, 2025. https://doi.org/10.1109/ciss64860.2025.10944683.

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Pham, Natalie, and W. Steven Gray. "Parameter Dependent Chen–Fliess Series: Convergence and Continuity." In 2025 59th Annual Conference on Information Sciences and Systems (CISS). IEEE, 2025. https://doi.org/10.1109/ciss64860.2025.10944681.

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Sa, Yuchao, and Wei He. "Chen-Mobius voice communication system." In 6th International Conference on Mechatronics, Materials, Biotechnology and Environment (ICMMBE 2016). Atlantis Press, 2016. http://dx.doi.org/10.2991/icmmbe-16.2016.99.

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Guan jun Jia and Qun-h Zhang. "Impulsive synchronization of hyperchaotic Chen system." In 2008 Chinese Control and Decision Conference (CCDC). IEEE, 2008. http://dx.doi.org/10.1109/ccdc.2008.4598005.

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Naseri, E., A. Ranjbar, and S. H. HosseinNia. "Backstepping Control of Fractional-Order Chen System." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86950.

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In this paper, Chaos and its control is studied in fractional-order Chen system. Backstepping method is proposed to synchronize two identical fractional-order Chen systems. The simulation results show that this method can effectively synchronize two identical chaotic systems.

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Austin, Francis, Chen Xu, Jian-wen Feng, and Wei-qiang Zhang. "Adaptive Synchronization Between Hyperchaotic Lorenz System and Chen System." In 2009 International Conference on Computational Intelligence and Security (CIS 2009). IEEE, 2009. http://dx.doi.org/10.1109/cis.2009.122.

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GAMBINO, G., M. C. LOMBARDO, and M. SAMMARTINO. "AN EQUILIBRIUM POINT REGULARIZATION FOR THE CHEN SYSTEM." In Proceedings of the 13th Conference on WASCOM 2005. WORLD SCIENTIFIC, 2006. http://dx.doi.org/10.1142/9789812773616_0033.

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Reports on the topic "Chen system"

1

Chen, Dr James C. From Lean to Smart Manufacturing. Asian Productivity Organization, 2024. http://dx.doi.org/10.61145/xdrc9700.

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Starting with a review of the manufacturing scenario in the mid- to late 1980s when the Toyota Production System (TPS) gained a global foothold, the P-Insights report From Lean to Smart Manufacturing by Dr. James C. Chen details how the TPS has evolved by incorporating elements of smart manufacturing, technological advances, and the insights of employees. Relationships among the TPS, lean, kaizen, digitalization, Industry 4.0, and smart manufacturing are analyzed in different manufacturing scenarios. Concluding with two brief case studies, the report provides examples for manufacturers to consider now in preparation for a smarter, leaner, more productive future.

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Daveloui, José Fernando. Redefining Teaching with Artificial Intelligence. Carver University; Universidad Autónoma de Chile, 2025. https://doi.org/10.32457/davelouis220254.

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Four years ago, I accepted the fascinating challenge of teaching a Big Data course. The thematic proposal was intimidating, as it presented an approach devoid of "ready-to-use" tools and, instead, proposed a highly technical approach (Kumar et al., 2022). This required meticulous and mechanical practice that consisted of mastering the Linux operating system, configuring virtual machines, and installing more than half a dozen tools through command line, as well as configuring an endless list of system files (.sh, .ini, etc.). These specialized practices demand considerable time and expertise from the instructor (Wang & Chen, 2023). Back then, AI assistants like ChatGPT or Claude didn't exist. Class preparation without these tools became an arduous and often torturous process of achieving the ideal pedagogical strategy. Here, aspects such as class script, narrative resources, demonstrative arguments, effective design of examples, and the development of questionnaires, glossaries, case studies, group dynamics, among others, became relevant.

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Robert, J., and Michael Forte. Field evaluation of GNSS/GPS based RTK, RTN, and RTX correction systems. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41864.

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This Coastal and Hydraulic Engineering Technical Note (CHETN) details an evaluation of three Global Navigation Satellite System (GNSS)/Global Positioning System (GPS) real-time correction methods capable of providing centimeter-level positioning. Internet and satellite-delivered correction systems, Real Time Network (RTN) and Real Time eXtended (RTX), respectively, are compared to a traditional ground-based two-way radio transmission correction system, generally referred to as Local RTK, or simply RTK. Results from this study will provide prospective users background information on each of these positioning systems and comparisons of their respective accuracies during in field operations.

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Kress, Martin A., and Samuel J. Weintraub. AIS Data Case Study : Selecting Design Vessels for New Jersey Back Bays Storm Surge Barriers Study. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/39779.

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The purpose of this Coastal and Hydraulics Engineering technical note (CHETN) is to describe how historic Automatic Identification System (AIS) vessel position data were used to identify a design vessel for use in a storm surge barrier design study. Specifically, this CHETN describes how the AIS data were accessed, how the universe of vessel data was refined to allow for design vessel selection, and how that selection was used in a storm surge barrier (SSB) study. This CHETN draws upon the New Jersey Back Bays Coastal Storm Risk Management Feasibility Study (USACE-NAP 2019), specifically the Appendix B.2 Engineering Appendix Civil document1. The New Jersey Back Bays Study itself builds upon the work of the North Atlantic Coast Comprehensive Study (NACCS) initiated after Hurricane Sandy in 2012 (USACE 2015a).

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Aldaba, Fernando, Joselito Sescon, and Karl Eli Alconis. Strengthening CHED’s Developmental and Regulatory Capacity. Philippine Institute for Development Studies, 2024. https://doi.org/10.62986/dp2024.41.

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This study aims to propose recommendations for enhancing the regulatory and developmental mandate of the Commission on Higher Education (CHED). A brief review of CHED’s strengths and weaknesses over the years regarding its regulatory and developmental mandates was conducted, along with an examination of other countries' higher education regulatory systems and good practices. The study also included key informant interviews with both public and private HEI administrators, CHED offices, and accreditation bodies to gather perspectives on strengthening CHED’s regulatory and developmental mission.

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LeGrand, Sandra, Christopher Polashenski, Theodore Letcher, Glenn Creighton, Steven Peckham, and Jeffrey Cetola. The AFWA dust emission scheme for the GOCART aerosol model in WRF-Chem v3.8.1. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41560.

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Airborne particles of mineral dust play a key role in Earth’s climate system and affect human activities around the globe. The numerical weather modeling community has undertaken considerable efforts to accurately forecast these dust emissions. Here, for the first time in the literature, we thoroughly describe and document the Air Force Weather Agency (AFWA) dust emission scheme for the Georgia Institute of Technology–Goddard Global Ozone Chemistry Aerosol Radiation and Transport (GOCART) aerosol model within the Weather Research and Forecasting model with chemistry (WRF-Chem) and compare it to the other dust emission schemes available in WRF-Chem. The AFWA dust emission scheme addresses some shortcomings experienced by the earlier GOCART-WRF scheme. Improved model physics are designed to better handle emission of fine dust particles by representing saltation bombardment. WRF-Chem model performance with the AFWA scheme is evaluated against observations of dust emission in southwest Asia and compared to emissions predicted by the other schemes built into the WRF-Chem GOCART model. Results highlight the relative strengths of the available schemes, indicate the reasons for disagreement, and demonstrate the need for improved soil source data.

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Tetreault, Brian J., Gregory W. Johnson, Kevin Kohlmann, and Marin M. Kress. Sharing Ships' Weather Data via AIS : Concept and Results from Multiyear Observations. U.S. Army Engineer Research and Development Center, 2024. http://dx.doi.org/10.21079/11681/48752.

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The purpose of this Coastal and Hydraulics Engineering technical note (CHETN) is to discuss the concept, demonstrations, and the initial results of multiyear proof-of-concept testing of the capability to share weather data from ships via the Automatic Identification System (AIS). Technical foundations of this process were described by Tetreault and Johnson (2020) with partial results described in Johnston et al. 2021. The updated results in this CHETN include evaluation of the efficacy of the various application-specific message (ASM) formats use to communicate the weather observations and data reception results for selected vessels that have been participating in the proof-of-concept field deployment since 2019 or later.

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Paqueo, Vicente, Johanna Marie Astrid Sister, Solomon Sarne, et al. The Impact of Trifocalization on Philippine Education Outcomes and the Coordination Issue. Philippine Institute for Development Studies, 2024. http://dx.doi.org/10.62986/dp2024.15.

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Thirty-two years ago, the First Congressional Commission on Education (EDCOM I) established a trifocalized Philippine Educational and Training System (PETS) to ramp up the achievement of the country’s educational and training goals. EDCOM I aimed to raise the system’s performance by transforming the PETS from a centralized Department of Education, Culture and Sports (DECS) into a system comprising three separate national education agencies, each vested with the responsibility and authority to lead on education and training matters. These agencies are the Department for Basic Education (DepEd), the Commission on Higher Education (CHED), and the Technical Education and Skills Development Authority (TESDA). Despite well-intentioned reform efforts advocated by EDCOM I, the PETS is not performing as well as education and development leaders had hoped. This state of affairs has led some influential leaders and advisers of EDCOM II to call for a reversal or modification of the current trifocalized PETS. This study seeks to address the aforementioned concerns and to analyze the proposal to reverse or modify trifocalization. To this end, the analysis aims to determine the impact of trifocalization on desired education and skills development outcomes in the Philippines using a combination of quantitative and qualitative methods. This study finds that trifocalization has had no statistically significant impact on education outcomes at conventional confidence levels. The empirical results are consistent with findings from key informant interviews. Furthermore, the study discusses why a trifocalized PETS might not work as expected. Given its findings, the report offers several reform ideas that EDCOM II may want to consider to enable and incentivize the trifocalized system to function more effectively, especially regarding coordination and other issues that key informants regard as fundamental. One recommendation is the establishment of an independent agency with oversight responsibilities and powers to hold DepEd, CHED, and TESDA and other related agencies accountable for their performance in the PETS.

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Rahai, Hamid, and Jeremy Bonifacio. Reducing NOx Emissions of Cargo Handling Equipment (CHE) with Humid Air Systems. Mineta Transportation Institute, 2020. http://dx.doi.org/10.31979/mti.2020.1859.

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Sylvester, Charlene, Scott Spurgeon, Sean McGill, and Lauren Dunkin. Geomorphic feature extraction to support the Great Lakes Restoration Initiative’s sediment budget and Geomorphic Vulnerability Index for Lake Michigan. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47079.

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This Coastal and Hydraulics Engineering technical note (CHETN) details a Geographic Information Systems (GIS) methodology to produce advanced lidar-derived datasets for use in a coastal erosion vulnerability analysis conducted by the US Army Corps of Engineers (USACE) and other federal partners for the Great Lakes Restoration Initiative (GLRI).

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