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Relevant bibliographies by topics / Sigmoid logistic map

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Academic literature on the topic 'Sigmoid logistic map'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Sigmoid logistic map"

1

Mfungo, Dani Elias, Xianping Fu, Xingyuan Wang, and Yongjin Xian. "Enhancing Image Encryption with the Kronecker xor Product, the Hill Cipher, and the Sigmoid Logistic Map." Applied Sciences 13, no. 6 (2023): 4034. http://dx.doi.org/10.3390/app13064034.

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In today’s digital age, it is crucial to secure the flow of information to protect data and information from being hacked during transmission or storage. To address this need, we present a new image encryption technique that combines the Kronecker xor product, Hill cipher, and sigmoid logistic Map. Our proposed algorithm begins by shifting the values in each row of the state matrix to the left by a predetermined number of positions, then encrypting the resulting image using the Hill Cipher. The top value of each odd or even column is used to perform an xor operation with all values in the corr

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McDowall, Lachlan M., and Roger A. L. Dampney. "Calculation of threshold and saturation points of sigmoidal baroreflex function curves." American Journal of Physiology-Heart and Circulatory Physiology 291, no. 4 (2006): H2003—H2007. http://dx.doi.org/10.1152/ajpheart.00219.2006.

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The logistic sigmoid function curve provides an accurate description of the baroreflex input-output relationship and is the most commonly used equation for this purpose. The threshold (Thr) and saturation (Sat) values for the baroreflex are commonly defined as the values of mean arterial pressure (MAP) at which the reflexly controlled variable (e.g., heart rate or sympathetic nerve activity) is within 5% of the upper or lower plateau, respectively, of the sigmoid function. These values are referred to here as Thr5% and Sat5%. In many studies, Thr and Sat are calculated with the equations Thr =

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Ahmad, Zeeshan, Zain ul Abidin Jaffri, Shu-Di Bao, and Meng Chen. "Frequency diverse array radar with non-uniform array spacing based on sigmoid function." Journal of Electrical Engineering 73, no. 1 (2022): 36–42. http://dx.doi.org/10.2478/jee-2022-0005.

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Abstract As a widely recognized electronic beam steering concept, frequency diverse array (FDA) radar is an effective and feasible solution to provide beam scanning ability in both angle as well as range dimension as a function of time. However, the conventional FDA radar employing progressive incremental frequency offsets across the array elements generates an S-shaped and range-angle coupled beampattern. As such, the FDA beampattern can be decoupled into range-angle dimensions by employing non-linear frequency offsets or using non-uniform arrays. Frequency offsets design has been extensively

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4

Gu, He, Min Lin, Jianyu Liu, et al. "Selective impairment of central mediation of baroreflex in anesthetized young adult Fischer 344 rats after chronic intermittent hypoxia." American Journal of Physiology-Heart and Circulatory Physiology 293, no. 5 (2007): H2809—H2818. http://dx.doi.org/10.1152/ajpheart.00358.2007.

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Baroreflex control of heart rate (HR) is impaired after chronic intermittent hypoxia (CIH). However, the location and nature of this response remain unclear. We examined baroreceptor afferent, vagal efferent, and central components of the baroreflex circuitry. Fischer 344 (F344) rats were exposed to room air (RA) or CIH for 35–50 days and were then anesthetized with isoflurane, ventilated, and catheterized for measurement of mean arterial blood pressure (MAP) and HR. Baroreceptor function was characterized by measuring percent changes of integrated aortic depressor nerve (ADN) activity (Int AD

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5

Vitela, M., M. Herrera-Rosales, J. R. Haywood, and S. W. Mifflin. "Baroreflex regulation of renal sympathetic nerve activity and heart rate in renal wrap hypertensive rats." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 288, no. 4 (2005): R856—R862. http://dx.doi.org/10.1152/ajpregu.00620.2004.

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Despite its usefulness as a nongenetic model of hypertension, little information is available regarding baroreflex function in the Grollman, renal wrap model of hypertension in the rat. Baroreflex regulation of renal sympathetic nerve activity (RSNA) and heart rate (HR) were studied in male, Sprague-Dawley rats hypertensive (HT) for 1 or 4–6 wk after unilateral nephrectomy and figure-8 ligature around the remaining kidney or normotensive (NT) after sham surgery. Rats were anesthetized with Inactin and RSNA, and HR was recorded during intravenous infusions of sodium nitroprusside or phenylephri

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Ekwok, Stephen E., Ahmed M. Eldosouky, Ubong C. Ben, et al. "An integrated approach of advanced methods for mapping geologic structures and sedimentary thickness in Ukelle and adjoining region (Southeast Nigeria)." Earth Sciences Research Journal 27, no. 3 (2023): 251–58. http://dx.doi.org/10.15446/esrj.v27n3.105868.

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High-resolution aeromagnetic data were enhanced using recent and advanced filters to map the geologic structures of the Ukelle and adjoin region (Southeast Nigeria). Aeromagnetic data were reduced to the equator (RTE) and upward continued to 100 m. Subsequently, enhancement operations like the tilt angle of the horizontal gradient (TAHG), logistic function of the horizontal gradient (LTHG), and fast sigmoid function (FSED) operations were carried out. The results from these filters indicated that the ENE-WSW, NE-SW, NNE-SSW, and NNW-SSE orientations dominate the structural pattern of the Ukell

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Lee, Deuk-Hwan, Yun-Tae Kim, and Seung-Rae Lee. "Shallow Landslide Susceptibility Models Based on Artificial Neural Networks Considering the Factor Selection Method and Various Non-Linear Activation Functions." Remote Sensing 12, no. 7 (2020): 1194. http://dx.doi.org/10.3390/rs12071194.

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Landslide susceptibility mapping is well recognized as an essential element in supporting decision-making activities for preventing and mitigating landslide hazards as it provides information regarding locations where landslides are most likely to occur. The main purpose of this study is to produce a landslide susceptibility map of Mt. Umyeon in Korea using an artificial neural network (ANN) involving the factor selection method and various non-linear activation functions. A total of 151 historical landslide events and 20 predisposing factors consisting of Geographic Information System (GIS)-b

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Hussain, Farhan, and Jechang Jeong. "Efficient Deep Neural Network for Digital Image Compression Employing Rectified Linear Neurons." Journal of Sensors 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/3184840.

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A compression technique for still digital images is proposed with deep neural networks (DNNs) employing rectified linear units (ReLUs). We tend to exploit the DNNs capabilities to find a reasonable estimate of the underlying compression/decompression relationships. We aim for a DNN for image compression purpose that has better generalization property and reduced training time and support real time operation. The use of ReLUs which map more plausibly to biological neurons, makes the training of our DNN significantly faster, shortens the encoding/decoding time, and improves its generalization ab

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Doruk, Resat Ozgur, and Laila Abosharb. "Estimating the Parameters of Fitzhugh–Nagumo Neurons from Neural Spiking Data." Brain Sciences 9, no. 12 (2019): 364. http://dx.doi.org/10.3390/brainsci9120364.

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A theoretical and computational study on the estimation of the parameters of a single Fitzhugh–Nagumo model is presented. The difference of this work from a conventional system identification is that the measured data only consist of discrete and noisy neural spiking (spike times) data, which contain no amplitude information. The goal can be achieved by applying a maximum likelihood estimation approach where the likelihood function is derived from point process statistics. The firing rate of the neuron was assumed as a nonlinear map (logistic sigmoid) relating it to the membrane potential vari

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Al-Rubaie, Tuqa, Osamah Al-Saadi, and Ahmed Mousa. "Structural Interpretation of Najaf Basin Using the Magnetic and Gravity Data, Central Iraq." Iraqi Geological Journal 58, no. 1B (2025): 14–31. https://doi.org/10.46717/igj.58.1b.2ms-2025-2-10.

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Potential data interpretation is significant for subsurface structure characterization. The current study is an attempt to explore the magnetic low lying between Najaf and Diwaniyah Cities, In central Iraq. It aims to understand the subsurface structures that may result from this anomaly and submit a better subsurface structural image of the region. The study area is situated in the transition zone, known as the Abu Jir Fault Zone. This tectonic boundary is an inherited basement weak zone extending towards the NW-SE direction. Gravity and magnetic data processing and enhancement techniques; To

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Book chapters on the topic "Sigmoid logistic map"

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Teşeleanu, George. "Chosen Text Attacks Against an Image Encryption Based on the Kronecker Xor Product, the Hill Cipher and the Sigmoid Logistic Map." In Communications in Computer and Information Science. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-89518-0_9.

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Raghavendra Reddy P and Sivanesh Kumar A. "A Fraudulent Transaction Prediction in Credit Card by Using Novel LGBA over LR Algorithms." In Advances in Parallel Computing Algorithms, Tools and Paradigms. IOS Press, 2022. http://dx.doi.org/10.3233/apc220073.

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The Research is to predict the accuracy of credit card fraudulent transactions using the Light Gradient Booster algorithm.Novel Light Gradient Booster with sample size =10 then Logistic Regression of sample size = 10 were executed for estimating accuracy rate of credit card fraudulent transactions. The sigmoid functions used in Light Gradient maps the values between 0 and 1. Light Gradient Booster Algorithm has a Maximum accuracy (91.6%) while comparing to the performance of Logistic Regression (81.4%). There was a statistical significance difference between Light Gradient Booster and Logistic

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Conference papers on the topic "Sigmoid logistic map"

1

Teşeleanu, George. "Security Analysis of an Image Encryption Based on the Kronecker Xor Product, the Hill Cipher and the Sigmoid Logistic Map." In 10th International Conference on Information Systems Security and Privacy. SCITEPRESS - Science and Technology Publications, 2024. http://dx.doi.org/10.5220/0012307800003648.

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