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Journal articles on the topic 'Non-linear in nature'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Zuk, V., Y. Selin, and I. Shubenkova. "NONLINEAR NONSTATIONARY PROCESSES OF DIFFERENT NATURE. CLASSIFICATION." Znanstvena misel journal, no. 72 (November 21, 2022): 11–15. https://doi.org/10.5281/zenodo.7340679.

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The article is devoted to an actual problem - the development of a classification of non-linear non-stationary processes of different nature. The object of research is non-linear non-stationary processes in ecology, economics and finance. The necessity of developing a classification of non-linear non-stationary physical processes of various nature as a stage of increasing the adequacy of mathematical models of non-linear non-stationary processes and improving the quality of predictive estimates that are calculated using existing models is substantiated. The scheme of the developed classificati

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2

Prigogine, Ilya. "Non-linear science and the laws of nature." Journal of the Franklin Institute 334, no. 5-6 (1997): 745–58. http://dx.doi.org/10.1016/s0016-0032(97)00025-2.

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Franzen, J. "The non-linear ion trap. Part 5. Nature of non-linear resonances and resonant ion ejection." International Journal of Mass Spectrometry and Ion Processes 130, no. 1-2 (1994): 15–40. http://dx.doi.org/10.1016/0168-1176(93)03907-4.

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Boeyer, Melanie E., Emily V. Leary, Richard J. Sherwood, and Dana L. Duren. "Evidence of the non-linear nature of skeletal maturation." Archives of Disease in Childhood 105, no. 7 (2020): 631–38. http://dx.doi.org/10.1136/archdischild-2019-317652.

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ObjectiveThe aim of this study was to assess longitudinal trajectories of skeletal maturation to determine if children exhibit periods of rapid maturation during normal childhood and adolescence.DesignRetrospective longitudinal study. Patients: 345 participants, with an average of 25 assessments per participant, between 3 and 20 years of age from the Fels Longitudinal Study.Main outcome measuresChronological age (ie, timing) and rate (ie, tempo) of skeletal maturation, as assessed by the Fels Method, at each maturational milestone, as well as the duration of time spent between any two mileston

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Shur-Ofry, Michal. "Non-Linear Innovation." McGill Law Journal 61, no. 3 (2016): 563–610. http://dx.doi.org/10.7202/1037967ar.

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Contemporary intellectual property theory concentrates on the cumulative and incremental nature of innovation and creation. A prevalent image depicts authors and inventors as “standing on the shoulders of giants.” This article focuses on a different type of innovation that has been largely overlooked by intellectual property theory and doctrine: innovation in the domains of science and art that breaks with convention, disputes existing paradigms, and “steps off” giants’ shoulders. I term it “non-linear innovation”. Drawing on multidisciplinary research ranging from the history of science, thro

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Garcia-Arroyo, José, and Amparo Osca. "Coping with burnout: Analysis of linear, non-linear and interaction relationships." Anales de Psicología 33, no. 3 (2017): 722–31. https://doi.org/10.6018/analesps.33.3.279441.

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This study analyzes the relationship between action-focused coping, emotion-focused coping and burnout dimensions (emotional exhaustion, cynicism and personal accomplishment) by comparing linear, non-linear and interaction models using quadratic regression analysis. The sample consisted of 202 college professors. Variables such as gender or age were not significant when explaining the relationship between coping and burnout. The results show significant negative relationships between emotion-focused coping and exhaustion and cynicism and positive relationships with personal accomplishment (lin

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G. Russon, Manuel, and Ahmad F. Vakil. "On the non-linear relationship between VIX and realized SP500 volatility." Investment Management and Financial Innovations 14, no. 2 (2017): 200–206. http://dx.doi.org/10.21511/imfi.14(2-1).2017.05.

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VIX, a ticker symbol for Volatility Index, measures the implied annual volatility of at-the-money SP500 Index Options. Conventional wisdom presumes VIX to measure the magnitude (positive or negative) of possible movements in future equity prices, with movements being a positive function of VIX. This research investigates the nature of the relationship between VIX and SP500 volatility, and answers the question as to whether that relationship is linear or nonlinear. Based on this research paper, the authors conclude that the realized SP500 volatility is nonlinear, and grows with the level of VIX

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Ali, Benouis, Zahi Rachid, Moulgada Abdelmadjid, and Djebbar Noureddine. "LINEAR AND NON-LINEAR ANALYSES OF PRESSURE PIPE ELBOWS." Journal of the Serbian Society for Computational Mechanics 17, no. 1 (2023): 71–87. http://dx.doi.org/10.24874/jsscm.2023.17.01.05.

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The introduction of pressure piping increasingly requires the use of efficient materials which must withstand both high hydrostatic pressures, high mechanical loads and high thermal gradients. At nuclear power plants, piping systems are subjected to high pressures (up to 60 MPa). The occurrence of cracks and their possible spread is one of the serious risks in the industry. For this reason, elbows are considered critical components of a piping system. Therefore, in order to design and/or qualify a pipe structurally, it is useful to have a reliable evaluation of their structural behavior under

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9

Green, Claire. "non-linear politics of language." Groundings Undergraduate 6 (April 1, 2013): 17–29. http://dx.doi.org/10.36399/groundingsug.6.225.

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This article will examine the relation between power and language in the case of the repression of Catalan by Franco’s dictatorship. This is an issue of contemporary relevance, as the Catalan independence and language movements are coming to increasing prominence within the Spanish state. To analyse why language was of such concern for Franco’s regime, I will look at the relation of language and power in a broader theoretical sense, and how these concepts manifested themselves in the particular Catalan case. Finally, I will examine two events which serve as intersections of the myriad forces a

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Zamboni, Mauro. "The Legislative Drafting in Sweden: Its Informal and Non-Linear Nature." Förvaltningsrättslig tidskrift, no. 2023 1 (February 27, 2023): 81–104. http://dx.doi.org/10.53292/d32dfd4b.48eac920.

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Arefieva, Elizaveta. "Update of Linear and Non-linear Notation Systems in Modern Choral Performance." Bulletin of Kyiv National University of Culture and Arts. Series in Musical Art 5, no. 2 (2022): 199–207. https://doi.org/10.31866/2616-7581.5.2.2022.269680.

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The purpose of the research is to carry out a comparative analysis of the nonlinearity concepts in architecture and music; to determine the prospects for the transformation of nonlinear notation systems in postmodern music using the technique of genetic algorithm. The relevance of the problem of explicating the concepts of nonlinear discourse in music, particularly in the system of choral performance, based on the analysis of the correlation of pre-linear and post-linear notation systems is emphasized. The research methodology is determined by comparative and systematic approach

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12

Hämäläinen, J. S., and J. Merikoski. "Stochastic Kinetics with Wave Nature." Modern Physics Letters B 17, no. 17 (2003): 929–33. http://dx.doi.org/10.1142/s0217984903005986.

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We consider stochastic second-order partial differential equations. We indroduce a noisy non-linear wave equation and discuss its connections, in particular via the Lorentz transformation, with known stochastic models.

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13

Várkonyi-Kóczy, Annamária R. "State Dependant Anytime Control Methodology for Non-Linear Systems." Journal of Advanced Computational Intelligence and Intelligent Informatics 12, no. 2 (2008): 198–205. http://dx.doi.org/10.20965/jaciii.2008.p0198.

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Nowadays in solving control problems the processing is performed typically by model-based computer systems, which contain a representation of our knowledge about the nature and the actual circumstances of the problem in hand. If the nature and/or the actual circumstances change, the corresponding model should also be changed. Anytime techniques are very flexible in this respect and can advantageously be used when the operation should be performed under changing circumstances. In this paper, a nonlinear state dependant control methodology is proposed for anytime use and as an example is applied

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Ramos-Leaños, Octavio, Jneid Jneid, and Bruno Fazio. "Non-Linear Clustering of Distribution Feeders." Energies 15, no. 21 (2022): 7883. http://dx.doi.org/10.3390/en15217883.

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Distribution network planners are facing a strong shift in the way they plan and analyze the network. With their intermittent nature, the introduction of distributed energy resources (DER) calls for yearly or at least seasonal analysis, which is in contrast to the current practice of analyzing only the highest demand point of the year. It requires not only a large number of simulations but long-term simulations as well. These simulations require significant computational and human resources that not all utilities have available. This article proposes a nonlinear clustering methodology to find

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Zhuk, V., Y. Selin, and I. Shubenkova. "INFORMATION TECHNOLOGY FOR INTELLECTUAL ANALYSIS AND FORECASTING OF NON-LINEAR NON-STATIONARY PROCESSES." Norwegian Journal of development of the International Science, no. 97 (November 26, 2022): 50–55. https://doi.org/10.5281/zenodo.7377425.

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<strong>Abstract</strong> The structure of information technology is described for the analysis and forecasting of non-linear non-stationary processes of various nature. The results of numerous experiments on the practical application of information technology for forecasting the time series of the relevant processes are presented. <strong>Аннотация</strong> Описана структура информационной технологии, для анализа и прогнозирования нелинейных нестационарных процессов различной природы. Приведены результаты многочисленных опытов практического применения информационной технологии для прогнозиров

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Arefieva, Elizaveta. "Update of Linear and Non-linear Notation Systems in Modern Choral Performance." Bulletin of Kyiv National University of Culture and Arts. Series in Musical Art 5, no. 2 (2022): 199–207. http://dx.doi.org/10.31866/2616-7581.5.2.2022.269680.

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The purpose of the research is to carry out a comparative analysis of the nonlinearity concepts in architecture and music; to determine the prospects for the transformation of nonlinear notation systems in postmodern music using the technique of genetic algorithm. The relevance of the problem of explicating the concepts of nonlinear discourse in music, particularly in the system of choral performance, based on the analysis of the correlation of pre-linear and post-linear notation systems is emphasized. The research methodology is determined by comparative and systematic approaches, which allow

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17

K., Rajesh*1 &. P. Praveen Kumar2. "LINEAR AND NON LINEAR OPTICAL QUALITIES OF L-HISTIDINIUM 2-NITROBENZOATE NLO CRYSTAL." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 7 (2017): 710–16. https://doi.org/10.5281/zenodo.834466.

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The present investigation is focused on to identified the linear and non linear optical qualities of the well known nlo crystal l-Histidinium 2-nitrobenzoate. The optical quantities such as reflection, refractive index and optical band gap have been evaluated using UV- Visible absorption spectrum. The birefringence nature of the crystal was examined. Photo luminous studies were carried out to find the optical emission of the crystal. Optical limiting method was involved and the linear absorption co efficient was calculated. Z-scan measurements reveal the third order non linear optical property

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18

Fomina, T. A., and T. V. Alieva. "X-PHEMISMS AS NON-LINEAR PHENOMENA." Philology at MGIMO 21, no. 2 (2020): 22–53. http://dx.doi.org/10.24833/2410-2423-2020-2-22-53.

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The present paper aims to define the status of x-phemisms as dynamic phenomena. A detailed analysis of the research data taken from English socio-political discourse presented in a range of English-language news sources, such as The Guardian, The Seattle Times, ABC News, The New York Times, English media discourse and dictionaries of Contemporary English has been carried out. The paper finds that x-phemisms are non-linear phenomena. Thus, when distinguishing between euphemisms, dyspemisms and orthopemisms one should take into consideration diachronic meaning change, the previous context, the c

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Viana, Felipe A. C., Valder Steffen Jr., Marcelo A. X. Zanini, Sandro A. Magalhães, and Luiz C. S. Góes. "Identification of a Non-Linear Landing Gear Model Using Nature-Inspired Optimization." Shock and Vibration 15, no. 3-4 (2008): 257–72. http://dx.doi.org/10.1155/2008/246271.

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This work deals with the application of a nature-inspired optimization technique to solve an inverse problem represented by the identification of an aircraft landing gear model. The model is described in terms of the landing gear geometry, internal volumes and areas, shock absorber travel, tire type, and gas and oil characteristics of the shock absorber. The solution to this inverse problem can be obtained by using classical gradient-based optimization methods. However, this is a difficult task due to the existence of local minima in the design space and the requirement of an initial guess. Th

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Campanile, L. F., and G. Thwapiah. "A non-linear theory of torsional divergence." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 223, no. 11 (2009): 2707–11. http://dx.doi.org/10.1243/09544062jmes1843.

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In recent years, research on aerofoil morphing is increasingly focusing on innovative ideas such as the use of compliant systems and the exploitation of aeroelastic servo-effects. If brought to their limit, these concepts would allow operating aerofoils in aeroelastically marginally stable or even unstable conditions. In this view, a non-linear approach to aeroelastic torsional divergence becomes relevant. This article presents an extension of the well-known linear theory of divergence, which takes into account non-linear effects of structural as well as aerodynamic nature. The non-linear theo

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Fahmi Mustapa, Rijalul, NY Dahlan, Ihsan Mohd Yassin, Atiqah Hamizah Mohd Nordin, and Azlee Zabidi. "Energy consumption prediction through linear and non-linear baseline energy model." Indonesian Journal of Electrical Engineering and Computer Science 17, no. 1 (2020): 102. http://dx.doi.org/10.11591/ijeecs.v17.i1.pp102-109.

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<span>Accurate baseline energy models demand increase significantly as it lower the risk of energy savings quantification. It is achieved by performing energy consumption prediction with its respective independent variables through linear or non-linear modelling technique. Developing such model through linear modelling technique provide certain disadvantages due to the fact that the behavior of certain independent variables with respect to the energy consumption is non-linear in nature. Furthermore, linear modelling technique requires prior studies upon modelling to achieve accurate ener

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22

Delbosc, Alexa, Maarten Kroesen, Bert van Wee, and Mathijs de Haas. "Linear, non-linear, bi-directional? Testing the nature of the relationship between mobility and satisfaction with life." Transportation 47, no. 4 (2019): 2049–66. http://dx.doi.org/10.1007/s11116-019-10060-4.

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23

Suresh, Dr K., A. R. Vijay Babu, and P. M. Venkatesh. "Grid Integrated Wind Energy Storage System for Linear and non-Linear Loads." International Journal of Engineering & Technology 7, no. 4.24 (2018): 76. http://dx.doi.org/10.14419/ijet.v7i4.24.21859.

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The proposed system also has boost converter, bidirectional DC-DC converter and inverter for grid and wind energy integration. The boost inverter/buck rectifier in this system is controlled by ANFIS controller is for better output, boost and bidirectional DC-DC converters are controlled by PID controller in closed loop. Overall operations are based on modes main controller speedgoat, which is control the system operation in different modes. Any variation happening in the input, storage and load parameters speedgoat changing the mode and operate the system is in effective way. This paper presen

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Larina, E. V., A. A. Kurokhtina, N. A. Lagoda, and A. F. Schmidt. "Distinguishing between Linear and Non-Linear (Cooperative) Substrate Activation Mechanisms in the Sonogashira Reaction under “Ligand-Free” and “Copper-Free” Conditions." Кинетика и катализ 64, no. 6 (2023): 737–48. http://dx.doi.org/10.31857/s0453881123060102.

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The results are presented on the comparative studies of the differential selectivity patterns in the Sonogashira reaction with a pair of competing aryl acetylenes in the “ligand-free” and “copper-free” conditions when varying the nature and concentration of aryl halides and base. The revealed sensitivity of the differential selectivity of competing aryl acetylenes to aryl halide nature unambiguously indicated that the substrates were activated through linear mechanism from kinetic view. An absence of any influence of the nature and concentration of the base on the differential selectivity of c

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Zabara, Mohammed Ahmed, Gökberk Katırcı, and Burak Ülgüt. "Identifying Non-Stationarity in Non-Linear Harmonics of EIS Measurements of Li Batteries." ECS Meeting Abstracts MA2023-01, no. 1 (2023): 399. http://dx.doi.org/10.1149/ma2023-011399mtgabs.

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Non-linear Harmonic Analysis is a technique used to investigate the distortions in Electrochemical Impedance Spectroscopy (EIS) measurements. The distortions are in both non-linear and non-stationary nature that appear as high order harmonics in the frequency domain. Differentiating the origin of the harmonics is important in understanding their nature and relating them to electrochemical phenomena. Here, we will show how the harmonics are in direct relation to the initial non-stationary response (initial transient) of the excited system [1]. We will show by both experimental measurements and

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Cheng, Ping-chin, Chi-Kuang Sun, Fu-Jen Kao, and Bai-Ling Lin. "Non-linear Spectral Microscopy-Multi-Photon Fl, SHG and THG." Microscopy and Microanalysis 7, S2 (2001): 1026–27. http://dx.doi.org/10.1017/s1431927600031202.

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The non-linear nature of multi-photon fluorescence (FL) excitation, SHG and THG restricts the signal detecting volume to the vicinity of the focal point. As a result, the technology has intrinsic optical sectioning capability. The use of multi-photon fluorescence excitation also allows micro-fluorometry at high spatial resolution. Figure 1 shows a conventional optical micrograph of maize protoplasts, the time lapse fluorescence spectral change from a single chloroplast is shown in FIG 2. Under high intensity illumination, biological specimen not only emits fluorescence, but also generates harm

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Al-Basri, Majid Abdulatif. "On the nature of metrical phonology of Iraqi Arabic: A non-linear approach." Journal of Language and Linguistic Studies 17, no. 2 (2021): 882–95. http://dx.doi.org/10.52462/jlls.61.

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Caddemi, Salvatore. "Parametric nature of the non-linear hardening plastic constitutive equations and their integration." European Journal of Mechanics - A/Solids 17, no. 3 (1998): 479–98. http://dx.doi.org/10.1016/s0997-7538(98)80056-9.

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Kurths, J., U. Feudel, and W. Jansen. "On the Chaotic Nature of Solar Activity." International Astronomical Union Colloquium 132 (1993): 13–20. http://dx.doi.org/10.1017/s0252921100065878.

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AbstractApplying modern techniques of time series analysis, there are serious indications that the dynamics of the global solar activity is a low dimensional chaos. A simple non-linear dynamo model is qualitatively studied exhibiting a rich dynamical behaviour from steady state via some bifurcation to a chaotic regime.

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Sharma, Bhavana, Hukum Singh, Pankaj Rakheja1, and Mehak Khurana. "Non-linear cryptosystem utilizing biological mutation operation in the two-dimensional non-separable linear canonical transform domain." Optica Applicata 54, no. 4 (2025): 581–607. https://doi.org/10.37190/oa/194974.

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This paper introduces a novel image encryption algorithm in the 2D-NSCT domain, employing a 4D hyperchaotic mapping, DNA coding with biological mutation, and the phase truncation and Fourier transfrom (PTFT) operation. Unlike existing DNA-based encryption methods that heavily rely on the XOR operator, our proposed scheme integrates a biological mutation operator to enhance the security of the encryption process. The performance and effectiveness of our cryptosystem are thoroughly evaluated through comprehensive experiments and analysis on various grayscale images, including <i>Cameraman&

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Sibilio, Maurizio, and Iolanda Zollo. "The non-linear potential of didactic action." EDUCATION SCIENCES AND SOCIETY, no. 2 (December 2016): 51–70. http://dx.doi.org/10.3280/ess2-2016oa3947.

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Starting from a perspective that views education as a complex and adaptive system, this paper is aimed at providing a first reflection on the concept of linearity, intended as a possible interpretation of the limitations arising from the characteristics and the relationships among the actors, the objects and the events that form part of the teaching-learning process. What results is a deterministic vision of teaching and a real negation of the embodied and situated dimension of teaching. This reflection forms part of a branch of educational research that investigates didactic corporealities -

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Poplavko, Y. M. "The Nature of Pyroelectric Polarity." Ukrainian Journal of Physics 69, no. 5 (2024): 336. http://dx.doi.org/10.15407/ujpe69.5.336.

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The concept of spontaneous polarization in the pyroelectrics is called into a question, since omnipresent free electric charges make impossible to maintain any equilibrium and time-stable polarized state. We conjecture in this paper that pyroelectricity in polar crystals and piezoelectricity in polar-neutral crystals are due to hybridized ionic-covalent polarity-activating bonds. When they are in non-excited state, these bonds do not produce electric field, yet they are capable of generating the electric response to uniform non-electric influence, e.g., heat, pressure, etc. This response is de

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Rueda, Martha Margarita, René Fulchiron, Grégory Martin, and Philippe Cassagnau. "Linear and non-linear nature of the flow of polypropylene filled with ferrite particles: from low to concentrated composites." Rheologica Acta 56, no. 7-8 (2017): 635–48. http://dx.doi.org/10.1007/s00397-017-1025-0.

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Uffink, Gerard, Amro Elfeki, Michel Dekking, Johannes Bruining, and Cor Kraaikamp. "Understanding the Non-Gaussian Nature of Linear Reactive Solute Transport in 1D and 2D." Transport in Porous Media 91, no. 2 (2011): 547–71. http://dx.doi.org/10.1007/s11242-011-9859-x.

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F. Dorch, S. B. "A Magnetic Betelgeuse? Numerical Simulations of Non-Linear Dynamo Action." Symposium - International Astronomical Union 219 (2004): 656–60. http://dx.doi.org/10.1017/s0074180900182701.

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Betelgeuse is an example of a cool supergiant displaying brightness fluctuations and irregular surface structures. Simulations by Freytag, Steffen, & Dorch (2002) of the convective envelope of the star have shown that the fluctuations in the star's luminosity may be caused by giant cell convection. A related question regarding the nature of Betelgeuse and supergiants in general is whether these stars may be magnetically active. If so, that may in turn also contribute to their variability. By performing detailed numerical simulations, I find that both linear kinematic and non-linear dynamo

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Ahmed, Naveed, Umar Khan, Syed Tauseef Mohyud-Din, and Saeed Ullah Jan. "Non-linear radiative squeezed flow in a rotating frame." Engineering Computations 34, no. 8 (2017): 2450–62. http://dx.doi.org/10.1108/ec-04-2017-0158.

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Purpose In this current study, the authors aim to analyze non-linear radiative squeezed flow in a rotating frame of viscous fluid. Design/methodology/approach The Radioactive nature of the fluid is taken into consideration. The reduced form of equations governing the flow are developed by the implementation of similarity transformations. The coupled system thus obtained is solved by using the homotopy analysis method (HAM). Findings Augmentation in velocity and temperature profiles is discussed graphically by varying various involved parameters. The total error of the system is discussed in Ta

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Župić, Ajdina. "Hypermedia in the teaching of Nature and Society." Metodicka praksa 26, m. br. (2023): 13–22. http://dx.doi.org/10.5937/metpra2301013q.

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Hyper medias make multi medial systems allowing non-linear connection i.e. texts exposure. It is the way users can combine, edit and process logically sounds, graphics, movable pictures and a computer software. It designates multi media's characteristics of a hypertext and union of three industries: TV, computer and publishing one. Hyper media are non-linear presentation of symbols (text, graphics, pictures, software code) with computer assistance. The contents of the subjects World around Us and Nature and Society, regarding their nature and character, require a need for different ways of int

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Zeer, Murad, Mutaz Abu Sara, Jawad Alkhateeb, and Mohammad Klaib. "Predicting Crop Yield Productivity Using Machine Learning Algorithms: A Comparison of Linear and Non-linear Approaches." Ahliya Journal of Business Technology and MEAN Economies 1, no. 1 (2024): 1–10. http://dx.doi.org/10.59994/ajbtme.2024.1.1.

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Predicting crop yield productivity is crucial for farmers and the agricultural sector to gain insights into crop productivity and returns. With advancements in technology and artificial intelligence, predicting crop yield using machine learning algorithms has become an important innovation. This study aimed to predict crop yield productivity using various machine learning algorithms and techniques. The dataset was sourced from Kaggle, preprocessed, and analyzed using linear algorithms such as Linear Regression, LASSO, and Ridge, as well as non-linear algorithms including SVR, KNN Regressor, an

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Chrpa, Lukáš, and Erez Karpas. "On Verifying Linear Execution Strategies in Planning Against Nature." Proceedings of the International Conference on Automated Planning and Scheduling 34 (May 30, 2024): 86–94. http://dx.doi.org/10.1609/icaps.v34i1.31464.

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While planning and acting in environments in which nature can trigger non-deterministic events, the agent has to consider that the state of the environment might change without its consent. Practically, it means that the agent has to make sure that it eventually achieves its goal (if possible) despite the acts of nature. In this paper, we first formalize the semantics of such problems in Alternating-time Temporal Logic, which allows us to prove some theoretical properties of different types of solutions. Then, we focus on linear execution strategies, which resemble classical plans in that they

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Abdulrauph Olarenwaju, Babatunde, and Igboeli Uchenna Harrison. "Modeling of COVID-19 cases of selected states in Nigeria using linear and non-linear prediction models." Journal of Computer Sciences Institute 17 (December 30, 2020): 390–95. http://dx.doi.org/10.35784/jcsi.2368.

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COVID-19 has stamped an indelible mark in the history of humanity as one of the recorded deadly virus that has wiped out millions of lives on planet earth many whose exact cause of death cannot be account for due to lack of knowledge. It has become a household name in every nook and cranny from developed to the underdeveloped nations of the world. Most of the prominent signs of COVID-19 like fever, cough, difficulty in breathing and accessional muscle pain can also resemble those of many other notable diseases thereby making it highly necessary to undergo a diagnostic test to be able to catego

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Abdullah, Samsuri, Marzuki Ismail, Ali Najah Ahmed, and Ahmad Makmom Abdullah. "Forecasting Particulate Matter Concentration Using Linear and Non-Linear Approaches for Air Quality Decision Support." Atmosphere 10, no. 11 (2019): 667. http://dx.doi.org/10.3390/atmos10110667.

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Air quality status on the East Coast of Peninsular Malaysia is dominated by Particulate Matter (PM10) throughout the years. Studies have affirmed that PM10 influence human health and the environment. Therefore, precise forecasting algorithms are urgently needed to determine the PM10 status for mitigation plan and early warning purposes. This study investigates the forecasting performance of a linear (Multiple Linear Regression) and two non-linear models (Multi-Layer Perceptron and Radial Basis Function) utilizing meteorological and gaseous pollutants variables as input parameters from the year

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Abrahart, R. J., and L. M. See. "Neural network modelling of non-linear hydrological relationships." Hydrology and Earth System Sciences 11, no. 5 (2007): 1563–79. http://dx.doi.org/10.5194/hess-11-1563-2007.

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Abstract. Two recent studies have suggested that neural network modelling offers no worthwhile improvements in comparison to the application of weighted linear transfer functions for capturing the non-linear nature of hydrological relationships. The potential of an artificial neural network to perform simple non-linear hydrological transformations under controlled conditions is examined in this paper. Eight neural network models were developed: four full or partial emulations of a recognised non-linear hydrological rainfall-runoff model; four solutions developed on an identical set of inputs a

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Das, Sapan, S. A. Edalatpanah, and T. Mandal. "Application of linear fractional programming problem with fuzzy nature in industry sector." Filomat 34, no. 15 (2020): 5073–84. http://dx.doi.org/10.2298/fil2015073d.

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Several methods currently exist for solving fuzzy linear fractional programming problems under non negative fuzzy variables. However, due to the limitation of these methods, they cannot be applied for solving fully fuzzy linear fractional programming (FFLFP) problems where all the variables and parameters are fuzzy numbers. So, this paper is planning to fill in this gap and in order to obtain the fuzzy optimal solution we propose a new efficient method for FFLFP problems utilized in daily life circumstances. This proposed method is based on crisp linear fractional programming and has a simple

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Reshu, Gupta. "Numerical Solution of Temperature Profile in Annulus." i-manager’s Journal on Mathematics 11, no. 2 (2022): 19. http://dx.doi.org/10.26634/jmat.11.2.19035.

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The model of temperature profile in the flow of non-Newtonian second-order fluid, flowing in an annulus, is investigated. The boundary of annulus is considered porous. Appropriate similarity transformation is used to convert non-linear PDEs into non-linear ODEs. The obtained differential equations are solved numerically. The nature of the temperature profile is presented graphically for the various physical parameters.

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McPherson, Guy R. "Comparison of linear and non-linear overstory-understory models for ponderosa pine: A conceptual framework." Forest Ecology and Management 55, no. 1-4 (1992): 31–34. http://dx.doi.org/10.1016/0378-1127(92)90089-r.

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HENARI, FRYAD, ANDREW DAVEY, WERNER BLAU, P. HAISCH, and M. HANACK. "The Electronic and Non-linear Optical Properties of Oxo-titanium Phthalocyanines." Journal of Porphyrins and Phthalocyanines 03, no. 05 (1999): 331–38. http://dx.doi.org/10.1002/(sici)1099-1409(199906)3:5<331::aid-jpp138>3.0.co;2-x.

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The valence electronic properties of some unsubstituted and peripherally substituted oxo-titanium phthalocyanines are reported. Semiempirical quantum chemical calculations show that the nature of peripheral substituents has a strong bearing on the valence electronic properties, including the state dipole moments and absorption wavelength. The non-linear optical response was measured around the the Q-band resonance. The effect of different substituents and substitution patterns on the non-linear behaviour of the samples was determined. The combined results suggest that tuning of electronic and

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Lavanya. K. "Compartive Reliability Analysis of a System with Linear and Non-linear Membership Functions using (3,2)-Fuzzy Sets." Advances in Nonlinear Variational Inequalities 28, no. 4s (2025): 572–80. https://doi.org/10.52783/anvi.v28.3513.

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In this paper, we propose a multi-objective non-linear reliability global optimization and system cost as two objective functions. As a generalized version of fuzzy set, intuitionistic fuzzy set, Pythagorean fuzzy set, (3,2)-fuzzy set is a very useful tool to express uncertainty, impreciseness in more general way. we have considered (3,2)-fuzzy optimization technique with linear and non-linear membership function to solve this multi-objective reliability optimization model. To demonstrate the methodology and applicability of the proposed approach, numerical examples are presented and evaluated

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Nilsson, Mikael, Jonas Kvarnström, and Patrick Doherty. "Planning with Temporal Uncertainty, Resources and Non-Linear Control Parameters." Proceedings of the International Conference on Automated Planning and Scheduling 28 (June 15, 2018): 180–89. http://dx.doi.org/10.1609/icaps.v28i1.13891.

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We consider a general and industrially motivated class of planning problems involving a combination of requirements that can be essential to autonomous robotic systems planning to act in the real world: Support for temporal uncertainty where nature determines the eventual duration of an action, resource consumption with a non-linear relationship to durations, and the need to select appropriate values for control parameters that affect time requirements and resource usage. To this end, an existing planner is extended with support for Simple Temporal Networks with Uncertainty, Timed Initial Lite

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Adesuyi, F. E., A. S. Akinbowale, O. G. Olugbadieye, and K. Jayeola. "Fitting non-linear models for tree volume estimation in strict nature reserve, South-West, Nigeria." Tropical Plant Research 7, no. 1 (2020): 6–13. http://dx.doi.org/10.22271/tpr.2020.v7.i1.002.

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V., Adeline Premeja, R. Beena T., and Jarin T. "CRYSTALLISATION AND CHARACTERISATION OF NOVEL SEMI ORGANIC NON-LINEAR OPTICAL CRYSTAL: GLYCINIUM OXALATE." International Journal of Advanced Trends in Engineering and Technology 3, no. 1 (2018): 42–53. https://doi.org/10.5281/zenodo.1168506.

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Nonlinear optical amino acid single crystals of pure glycine and glycinium oxalate crystals were successfully grown by slow evaporation solution growth method. The grown crystals were subjected to different characterization studies in order to test its suitability for device fabrication. X-ray diffraction studies were carried out to examine the lattice parameters and crystallinity nature. The presence of various functional groups and their modes of vibration were identified using Fourier Transform Infrared (FTIR) spectral analysis. Optical spectral studies have been carried out to find the ban

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