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3,081 Results Found

  • Article
  • Open Access
16 Citations
4,026 Views
18 Pages

Linear-Range Extension for Linear Variable Differential Transformer Using Hyperbolic Sine Function

  • Apinai Rerkratn,
  • Jakkapun Tongcharoen,
  • Wandee Petchmaneelumka and
  • Vanchai Riewruja

12 May 2022

In this paper, a circuit technique to extend the measuring range of a linear variable differential transformer (LVDT) is proposed. The transfer characteristic of the LVDT contains the odd function form of the cubic polynomial. Therefore, the measurin...

  • Article
  • Open Access
890 Views
19 Pages

The variable-flux memory machine (VFMM) can perform flexible online PM flux adjustment by utilizing a magnetizing current pulse, effectively extending the machine operation range. However, the continuous flux adjustment (CFA) method generally suffers...

  • Article
  • Open Access
5 Citations
3,260 Views
23 Pages

26 September 2022

Fault detection in the landing gear retraction/extension hydraulic system is difficult due to uncertainties in component parameters and sensor measurement values. This work lies in the introduction of linear fractional transformation technology and u...

  • Article
  • Open Access
3 Citations
4,468 Views
22 Pages

21 June 2024

While the simple model of the total atmospheric carbon sink effect as a linear function of concentration has provided excellent prediction results, several problems remained to be investigated and solved. The most obvious open issue is the correct tr...

  • Article
  • Open Access
25 Citations
9,195 Views
18 Pages

12 January 2021

Soft robot has been one significant study in recent decades and soft gripper is one of the popular research directions of soft robot. In a static gripping system, excessive gripping force and large deformation are the main reasons for damage of the o...

  • Article
  • Open Access
15 Citations
4,737 Views
14 Pages

Digital Image Correlation (DIC) Assessment of the Non-Linear Response of the Anterior Longitudinal Ligament of the Spine during Flexion and Extension

  • Maria Luisa Ruspi,
  • Marco Palanca,
  • Luca Cristofolini,
  • Christian Liebsch,
  • Tomaso Villa,
  • Marco Brayda-Bruno,
  • Fabio Galbusera,
  • Hans-Joachim Wilke and
  • Luigi La Barbera

14 January 2020

While the non-linear behavior of spine segments has been extensively investigated in the past, the behavior of the Anterior Longitudinal Ligament (ALL) and its contribution during flexion and extension has never been studied considering the spine as...

  • Feature Paper
  • Article
  • Open Access
1 Citations
1,235 Views
22 Pages

19 November 2024

A new numerical method for solving Volterra non-linear convolution integral equations (NLCVIEs) of the second kind is presented in this work. This new approach, named IIRFM-A, is based on the combined use of the Laplace transformation, a first-order...

  • Article
  • Open Access
10 Citations
4,842 Views
25 Pages

14 July 2022

Critical hydrometeorological events are generally triggered by heavy precipitation. In complex terrain, precipitation may be perturbed by the upslope raising of the incoming humid airflow, causing in some cases extreme rainfall. In this work, the app...

  • Article
  • Open Access
3 Citations
1,601 Views
15 Pages

8 September 2023

In this paper, we propose the representation and cohomology of modified λ-differential 3-Lie algebras. As their applications, the linear deformations, abelian extensions and T-extensions of modified λ-differential 3-Lie algebras...

  • Article
  • Open Access
3 Citations
4,696 Views
9 Pages

Skeletal Growth Rates in Porites lutea Corals from Pulau Tinggi, Malaysia

  • Chai Kee Ong,
  • Jen Nie Lee and
  • Jani Thuaibah Isa Tanzil

24 December 2021

Skeletal records of massive Porites lutea corals sampled from reefs around Malaysia have previously shown average decadal declines in growth rates associated with sea warming. However, there was a variability in growth declines between sites that war...

  • Article
  • Open Access
3 Citations
1,614 Views
16 Pages

11 July 2024

We recently introduced a particular non-linear generalization of quantum mechanics that has the property that it is exactly solvable in terms of the eigenvalues and eigenfunctions of the Hamiltonian of the usual linear quantum mechanics problem. In t...

  • Article
  • Open Access
504 Views
21 Pages

A Six-Tap iToF Imager with Wide Signal Intensity Range Using Linearization of Linear–Logarithmic Response

  • Tomohiro Okuyama,
  • Haruya Sugimura,
  • Gabriel Alcade,
  • Seiya Ageishi,
  • Hyeun Woo Kwen,
  • De Xing Lioe,
  • Kamel Mars,
  • Keita Yasutomi,
  • Keiichiro Kagawa and
  • Shoji Kawahito

12 December 2025

Time-of-flight (ToF) image sensors must operate across a wide span of reflected-light intensities, from weak diffuse reflections to extremely strong retroreflections. We present a signal-intensity range-extension technique that linearizes the linear&...

  • Review
  • Open Access
1 Citations
2,119 Views
24 Pages

18 October 2021

We review earlier and recent results on the Markov moment problem and related polynomial approximation on unbounded subsets. Such results allow proving the existence and uniqueness of the solutions for some Markov moment problems. This is the first a...

  • Article
  • Open Access
1 Citations
1,769 Views
26 Pages

28 October 2021

Zadeh’s extension principle is one of the elementary tools in fuzzy set theory, and among other things, it provides a natural extension of a real-valued continuous self-map to a self-map having fuzzy sets as its arguments. The purpose of this paper i...

  • Article
  • Open Access
32 Citations
5,413 Views
20 Pages

7 March 2019

The physics of the imaging mechanism underlying the emergence of ship wakes in Synthetic Aperture Radar (SAR) images has been studied in the past by many researchers providing a well-understood theory. Therefore, many publications describe how well s...

  • Article
  • Open Access
6 Citations
5,208 Views
13 Pages

Limited Cross-Shelf Variation in the Growth of Three Branching Corals on Australia’s Great Barrier Reef

  • Deborah Burn,
  • Morgan S. Pratchett,
  • Scott F. Heron,
  • Cassandra A. Thompson,
  • Deborah J. Pratchett and
  • Andrew S. Hoey

12 November 2018

Pronounced differences exist in the biodiversity and structure of coral reef assemblages with increasing distance from shore, which may be expected given marked cross-shelf gradients in environmental conditions. Cross-shelf variation in the abundance...

  • Article
  • Open Access
3 Citations
1,924 Views
17 Pages

An Exponentiated Multivariate Extension for the Birnbaum-Saunders Log-Linear Model

  • Guillermo Martínez-Flórez,
  • Rafael Bráz Azevedo-Farias and
  • Roger Tovar-Falón

14 April 2022

In this work, a bivariate extension of the univariate exponentiated sinh-normal distribution is proposed. The properties of the new distribution, which is called the bivariate exponentiated sinh-normal distribution, are studied in detail, and the max...

  • Article
  • Open Access
28 Citations
9,663 Views
19 Pages

2 June 2014

Conventional heating, ventilating, and air conditioning (HVAC) systems have traditionally used the temperature and the humidity ratio as the quantitative indices of comfort in a room. Recently, the carbon dioxide (CO2) concentration has also been rec...

  • Article
  • Open Access
2 Citations
1,340 Views
18 Pages

21 June 2024

In this paper, the velocity and altitude control problem of hypersonic vehicles is studied. Aiming at the nonlinear parameter uncertainties, external disturbances and coupling of the hypersonic vehicle system, a control method combining backstepping...

  • Article
  • Open Access
2 Citations
3,996 Views
30 Pages

8 November 2022

Deterioration of the searchability of Pareto dominance-based, many-objective evolutionary optimization algorithms is a well-known problem. Alternative solutions, such as scalarization-based and indicator-based approaches, have been proposed in the li...

  • Article
  • Open Access
970 Views
17 Pages

Extension of an Eighth-Order Iterative Technique to Address Non-Linear Problems

  • Higinio Ramos,
  • Ioannis K. Argyros,
  • Ramandeep Behl and
  • Hashim Alshehri

18 November 2024

The convergence order of an iterative method used to solve equations is usually determined by using Taylor series expansions, which in turn require high-order derivatives, which are not necessarily present in the method. Therefore, such convergence a...

  • Feature Paper
  • Article
  • Open Access
4 Citations
2,819 Views
9 Pages

22 September 2021

A modification of the Brouwer–Zimmermann algorithm for calculating the minimum weight of a linear code over a finite field is presented. The aim was to reduce the number of codewords for consideration. The reduction is significant in cases where the...

  • Article
  • Open Access
1 Citations
1,348 Views
21 Pages

28 August 2025

This paper presents the design of a nonlinear Multi-Input Multi-Output (MIMO) Feedback Linearization Controller (FLC) for the longitudinal dynamics of a fixed-wing UAV. The proposed approach employs dynamic extension to achieve Feedback Linearization...

  • Article
  • Open Access
4 Citations
2,236 Views
15 Pages

4 December 2023

Solving optimization problems in a fuzzy environment is an area widely addressed in the recent literature. De-fuzzification of data, construction of crisp more or less equivalent problems, unification of multiple objectives, and solving a single cris...

  • Article
  • Open Access
1 Citations
2,884 Views
14 Pages

Growth Patterns of Reef-Building Porites Species in the Remote Clipperton Atoll Reef

  • Ania Ochoa-Serena,
  • J. J. Adolfo Tortolero-Langarica,
  • Fabián A. Rodríguez-Zaragoza,
  • Juan P. Carricart-Ganivet,
  • Eric Clua and
  • Alma P. Rodríguez-Troncoso

18 July 2025

Remote reefs offer insights into natural coral dynamics, influenced by regional environmental factors and climate change fluctuations. Clipperton Atoll is the eastern tropical Pacific’s most isolated reef, where coral reef growth and life strat...

  • Article
  • Open Access
6 Citations
5,070 Views
14 Pages

Acclimatization Drives Differences in Reef-Building Coral Calcification Rates

  • Kelsey Archer Barnhill,
  • Nadia Jogee,
  • Colleen Brown,
  • Ashley McGowan,
  • Ku’ulei Rodgers,
  • Ian Bryceson and
  • Keisha Bahr

8 September 2020

Coral reefs are susceptible to climate change, anthropogenic influence, and environmental stressors. However, corals in Kāneʻohe Bay, Hawaiʻi have repeatedly shown resilience and acclimatization to anthropogenically-induced rising temperatures and in...

  • Article
  • Open Access
3 Citations
2,809 Views
20 Pages

13 May 2021

Soil organic carbon storage (SOCS) estimation is a crucial branch of the atmospheric–vegetation–soil carbon cycle study under the background of global climate change. SOCS research has increased worldwide. The objective of this study is to develop a...

  • Feature Paper
  • Article
  • Open Access
10 Citations
5,847 Views
22 Pages

Hardware Acceleration for RLNC: A Case Study Based on the Xtensa Processor with the Tensilica Instruction-Set Extension

  • Javier Acevedo,
  • Robert Scheffel,
  • Simon Wunderlich,
  • Mattis Hasler,
  • Sreekrishna Pandi,
  • Juan Cabrera,
  • Frank H. P. Fitzek,
  • Gerhard Fettweis and
  • Martin Reisslein

Random linear network coding (RLNC) can greatly aid data transmission in lossy wireless networks. However, RLNC requires computationally complex matrix multiplications and inversions in finite fields (Galois fields). These computations are highly dem...

  • Article
  • Open Access
1 Citations
1,197 Views
17 Pages

3 November 2024

Mathematical tools have been developed that are analogous to the tool that allows one to reduce the description of linear systems in terms of convolution operations to a description in terms of amplitude-frequency characteristics. These tools are int...

  • Article
  • Open Access
112 Views
20 Pages

Opportunistic and Organized Cervical Cancer Screening: Impact on Lesion Severity and Surgical Outcomes in 9830 Cervical Conizations

  • Mario Preti,
  • Niccolò Gallio,
  • Silvano Costa,
  • Fulvio Borella,
  • Paola Armaroli,
  • Pedro Vieira-Baptista,
  • Federica Zamagni,
  • Federica Bevilacqua,
  • Paola Garutti and
  • Lauro Bucchi
  • + 11 authors

Objectives: To assess the impact of organized (OgS) versus opportunistic screening (OpS) on grade, extent, and surgical management of cervical lesions, and to evaluate human papillomavirus (HPV)-based versus cytology-based screening within OgS. Metho...

  • Article
  • Open Access
575 Views
14 Pages

Human Papillomavirus Testing and Size of CIN3: Implications for the Risk of Microinvasive Cervical Carcinoma

  • Mario Preti,
  • Annibale Biggeri,
  • Guglielmo Ronco,
  • Maria Kyrgiou,
  • Raffaella Rizzolo,
  • Paola Armaroli,
  • Niccolò Gallio,
  • Murat Gultekin,
  • Federica Zamagni and
  • Lauro Bucchi
  • + 9 authors

27 January 2026

(1) Background/Objectives: Human papillomavirus (HPV) testing is hypothesised to detect cervical intraepithelial neoplasia grade 3 (CIN3) earlier than cervical cytology, which could translate into several clinical benefits. This study aimed to confir...

  • Article
  • Open Access
2 Citations
1,344 Views
12 Pages

26 September 2024

For a finite field GF(pL) with prime p and L>1, one of the standard representations is L×L matrices over GF(p) so that the arithmetic of GF(pL) can be realized by the arithmetic among these matrices over GF(p). Based on the matrix representa...

  • Article
  • Open Access
7 Citations
1,760 Views
17 Pages

A New Extension of Optimal Auxiliary Function Method to Fractional Non-Linear Coupled ITO System and Time Fractional Non-Linear KDV System

  • Rashid Nawaz,
  • Aaqib Iqbal,
  • Hina Bakhtiar,
  • Wissal Audah Alhilfi,
  • Nicholas Fewster-Young,
  • Ali Hasan Ali and
  • Ana Danca Poțclean

14 September 2023

In this article, we investigate the utilization of Riemann–Liouville’s fractional integral and the Caputo derivative in the application of the Optimal Auxiliary Function Method (OAFM). The extended OAFM is employed to analyze fractional n...

  • Feature Paper
  • Article
  • Open Access
1,609 Views
22 Pages

11 December 2022

This paper provides several illustrations of the numerous remarkable properties of the lambda extensions of the two-point correlation functions of the Ising model, shedding some light on the non-linear ODEs of the Painlevé type they satisfy. W...

  • Article
  • Open Access
1 Citations
1,545 Views
18 Pages

23 June 2023

In this paper, we propose a nonlinear regression model with exponentiated skew-elliptical errors distributed, which can be fitted to datasets with high levels of asymmetry and kurtosis. Maximum likelihood estimation procedures in finite samples are d...

  • Article
  • Open Access
3 Citations
5,849 Views
16 Pages

11 July 2025

Accurate retail demand forecasting is integral to the operational efficiency of any retail business. As demand is described over time, the prediction of demand is a time-series forecasting problem which may be addressed in a univariate manner, via st...

  • Article
  • Open Access
13 Citations
3,486 Views
25 Pages

3 November 2021

This paper presents an extended comparison study between 16 different linear and non-linear regression methods to predict the sugar, pH, and anthocyanin contents of grapes through hyperspectral imaging (HIS). Despite the numerous studies on this subj...

  • Article
  • Open Access
1 Citations
2,056 Views
8 Pages

29 January 2022

A nonlinear transformation from the solution of linear KdV equation to the solution of Sharma-Tasso-Olver (STO) equation is derived out by using simplified homogeneous balance (SHB) method. According to the nonlinear transformation derived here, the...

  • Article
  • Open Access
14 Citations
3,541 Views
16 Pages

Developing the Techniques for Solving the Inverse Problem in Photoacoustics

  • Mioljub Nesic,
  • Marica Popovic and
  • Slobodanka Galovic

12 February 2019

In this work, theoretically/mathematically simulated models are derived for the photoacoustic (PA) frequency response of both volume and surface optically-absorbing samples in a minimum volume PA cell. In the derivation process, the thermal memory in...

  • Article
  • Open Access
5 Citations
1,973 Views
11 Pages

Improvement of Furuta’s Inequality with Applications to Numerical Radius

  • Mohammad W. Alomari,
  • Mojtaba Bakherad,
  • Monire Hajmohamadi,
  • Christophe Chesneau,
  • Víctor Leiva and
  • Carlos Martin-Barreiro

22 December 2022

In diverse branches of mathematics, several inequalities have been studied and applied. In this article, we improve Furuta’s inequality. Subsequently, we apply this improvement to obtain new radius inequalities that not been reported in the cur...

  • Article
  • Open Access
6 Citations
2,939 Views
28 Pages

An efficient method for detecting the end of a count of a linear feedback shift register (LFSR) is presented. We show how this detector can be used to extend a maximum-length LFSR sequence by a number of states up to one less than the degree of the p...

  • Article
  • Open Access
2 Citations
1,628 Views
19 Pages

In this study, a broadband linearizer design method based on an extended design space is proposed to optimize the design complexity and linearization performance of conventional linearizers for broadband operation. The gain characteristics of the pow...

  • Article
  • Open Access
21 Citations
4,651 Views
23 Pages

4 February 2023

One of the biggest issues impeding a country’s progress is the lack of power. To overcome this issue, hybrid renewable energy systems (HRES) play an important role. Due to rising consumption and diminishing resources globally, sustainability ha...

  • Article
  • Open Access
2 Citations
4,124 Views
11 Pages

On Finding Two Posets that Cover Given Linear Orders

  • Ivy Ordanel,
  • Proceso Fernandez and
  • Henry Adorna

19 October 2019

The Poset Cover Problem is an optimization problem where the goal is to determine a minimum set of posets that covers a given set of linear orders. This problem is relevant in the field of data mining, specifically in determining directed networks or...

  • Article
  • Open Access
1 Citations
2,458 Views
15 Pages

Recent research has suggested that category theory can provide useful insights into the field of machine learning (ML). One example is improving the connection between an ML problem and the design of a corresponding ML algorithm. A tool from category...

  • Article
  • Open Access
1 Citations
1,900 Views
14 Pages

11 July 2024

In this work, we introduce the quaternion linear canonical S-transform, which is a generalization of the linear canonical S-transform using quaternion. We investigate its properties and seek the different types of uncertainty principles related to th...

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