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11,482 Results Found

  • Article
  • Open Access
6 Citations
2,497 Views
9 Pages

We propose a method for structuring the spatial coherence state of light via mixed linear combinations of N complex degrees of coherence (CDC) and specify the conditions under which such combinations represent a valid CDC. Several examples demonstrat...

  • Article
  • Open Access
1 Citations
2,537 Views
13 Pages

The Nullity, Rank, and Invertibility of Linear Combinations of k-Potent Matrices

  • Marina Tošić,
  • Eugen Ljajko,
  • Nataša Kontrec and
  • Vladica Stojanović

2 December 2020

Baksalary et al. (Linear Algebra Appl., doi:10.1016/j.laa.2004.02.025, 2004) investigated the invertibility of a linear combination of idempotent matrices. This result was improved by Koliha et al. (Linear Algebra Appl., doi:10.1016/j.laa.2006.01.011...

  • Article
  • Open Access
648 Views
15 Pages

21 September 2025

Identifying an optimal linear combination of continuous variables is a key objective in various fields of research, such as medicine. This manuscript explores the use of information-theoretical approaches used to establish these linear combinations....

  • Article
  • Open Access
345 Views
43 Pages

18 November 2025

This work presents a complete and definitive characterization of all cases where every linear combination of two commuting essentially cubic matrices results in a quadratic matrix, thereby extending existing contributions in the literature. To facili...

  • Article
  • Open Access
13 Citations
3,057 Views
12 Pages

Combinations of Linear Type Traits Affecting the Longevity in Hungarian Holstein-Friesian Cows

  • Evelin Török,
  • István Komlósi,
  • Viktor Szőnyi,
  • Béla Béri,
  • Gábor Mészáros and
  • János Posta

27 October 2021

Several research studies confirm the association of the linear type traits with longevity, but only with one trait at a time. The aim of our study was to analyse the influence of combinations for linear type traits on longevity in the Hungarian Holst...

  • Article
  • Open Access
4 Citations
3,751 Views
10 Pages

21 December 2018

In this paper, the authors introduce the Orlicz spaces corresponding to the Young function and, by virtue of the equivalent theorem between the modified K-functional and modulus of smoothness, establish the direct, inverse, and equivalent theorems fo...

  • Article
  • Open Access
40 Citations
8,883 Views
16 Pages

16 March 2018

Ground-based GNSS-R (global navigation satellite system reflectometry) can provide the absolute vertical distance from a GNSS antenna to the reflective surface of the ocean in a common height reference frame, given that vertical crustal motion at a G...

  • Article
  • Open Access
2 Citations
2,055 Views
26 Pages

Multiple Linear-Combination Security Network Coding

  • Yang Bai,
  • Xuan Guang and
  • Raymond W. Yeung

28 July 2023

In this paper, we put forward the model of multiple linear-combination security multicast network coding, where the wiretapper desires to obtain some information about a predefined set of multiple linear combinations of the source symbols by eavesdro...

  • Article
  • Open Access
18 Citations
12,150 Views
11 Pages

14 June 2005

The exact distribution of the linear combination α X + β Y is derived when X and Y are exponential and gamma random variables distributed independently of each other. A measure of entropy of the linear combination is investigated. We also provide com...

  • Article
  • Open Access
13 Citations
2,335 Views
29 Pages

21 June 2022

In the present paper, we try to estimate the fractal dimensions of the linear combination of continuous functions with different fractal dimensions. Initially, a general method to calculate the lower and the upper Box dimension of the sum of two cont...

  • Article
  • Open Access
1 Citations
1,708 Views
12 Pages

Relative Error Linear Combination Forecasting Model Based on Uncertainty Theory

  • Hongmei Shi,
  • Lin Wei,
  • Cui Wang,
  • Shuai Wang and
  • Yufu Ning

7 July 2023

The traditional combination forecasting model has good forecasting effect, but it needs precise historical data. In fact, many random events are uncertain, and much of the data are imprecise; sometimes, historical data are lacking. We need to study c...

  • Article
  • Open Access
9 Citations
2,476 Views
25 Pages

14 July 2022

The linear combination of multi-frequency carrier-phase and pseudorange observations can form the combined observations with special properties. The type and number of combined frequencies will directly affect the characteristics of the combined obse...

  • Review
  • Open Access
36 Citations
7,567 Views
27 Pages

Linear Combination Properties of the Phasor Space in Fluorescence Imaging

  • Belén Torrado,
  • Leonel Malacrida and
  • Suman Ranjit

27 January 2022

The phasor approach to fluorescence lifetime imaging, and more recently hyperspectral fluorescence imaging, has increased the use of these techniques, and improved the ease and intuitiveness of the data analysis. The fit-free nature of the phasor plo...

  • Article
  • Open Access
1 Citations
747 Views
14 Pages

In complex electromagnetic environments, wireless communication system reliability can be compromised by various types of jamming. To address the issue of jammers using deep neural network models to identify communication signal modulation method and...

  • Article
  • Open Access
1 Citations
3,532 Views
17 Pages

26 April 2019

The goal of classifier combination can be briefly stated as combining the decisions of individual classifiers to obtain a better classifier. In this paper, we propose a method based on the combination of weak rank classifiers because rankings contain...

  • Article
  • Open Access
1 Citations
1,250 Views
17 Pages

27 January 2025

The exponentiated exponential distribution has received great attention from many statisticians due to its popularity, many applications, and the fact that it is an efficient alternative to many famous distributions such as Weibull and gamma distribu...

  • Article
  • Open Access
3 Citations
2,650 Views
8 Pages

31 May 2019

In the present paper we prove that under certain conditions the linear combination of two Euler polynomials with odd degrees P n , m ( x ) = E n ( x ) + c E m ( x ) is always indecomposable over C , where c denotes a ration...

  • Article
  • Open Access
468 Views
17 Pages

14 December 2025

We develop a shared denominator Carathéodory–Fejér (CF) method for efficiently evaluating linear combinations of φ-functions for matrices whose spectrum lies in the negative real axis, as required in exponential integrators fo...

  • Article
  • Open Access
16 Citations
3,864 Views
15 Pages

20 July 2018

South Africa’s coal consumption accounts for 69.6% of the total energy consumption of South Africa, and this represents more than 88% of African coal consumption, taking the first place in Africa. Thus, predicting the coal demand is necessary,...

  • Article
  • Open Access
16 Citations
3,863 Views
19 Pages

Combination Chemotherapy with Cisplatin and Chloroquine: Effect of Encapsulation in Micelles Formed by Self-Assembling Hybrid Dendritic–Linear–Dendritic Block Copolymers

  • Rebeca González-Pastor,
  • Alexandre Lancelot,
  • Violeta Morcuende-Ventura,
  • María San Anselmo,
  • Teresa Sierra,
  • José L. Serrano and
  • Pilar Martin-Duque

Clinical outcomes of conventional drug combinations are not ideal due to high toxicity to healthy tissues. Cisplatin (CDDP) is the standard component for many cancer treatments, yet its principal dose-limiting side effect is nephrotoxicity. Thus, CDD...

  • Article
  • Open Access
6 Citations
2,753 Views
16 Pages

16 July 2023

The variational quantum eigensolver is one of the most promising algorithms for near-term quantum computers. It has the potential to solve quantum chemistry problems involving strongly correlated electrons with relatively low-depth circuits, which ar...

  • Article
  • Open Access
13 Citations
6,198 Views
16 Pages

A landslide susceptibility map plays an essential role in urban and rural planning. The main purpose of this study is to establish a variable-weighted linear combination model (VWLC) and assess its potential for landslide susceptibility mapping. Firs...

  • Article
  • Open Access
41 Citations
8,232 Views
17 Pages

A Probabilistic Approach to Phosphorus Speciation of Soils Using P K-edge XANES Spectroscopy with Linear Combination Fitting

  • Jon Petter Gustafsson,
  • Sabina Braun,
  • J. R. Marius Tuyishime,
  • Gbotemi A. Adediran,
  • Ruben Warrinnier and
  • Dean Hesterberg

A common technique to quantitatively estimate P speciation in soil samples is to apply linear combination fitting (LCF) to normalized P K-edge X-ray absorption near-edge structure (XANES) spectra. Despite the rapid growth of such applications, the un...

  • Article
  • Open Access
11 Citations
3,644 Views
16 Pages

20 December 2021

We present some solutions of the three-dimensional Laplace equation in terms of linear combinations of generalized hyperogeometric functions in prolate elliptic geometry, which simulates the current tokamak shapes. Such solutions are valid for partic...

  • Article
  • Open Access
35 Citations
6,118 Views
25 Pages

4 December 2020

This study was aimed at optimizing the weighted linear combination method (WLC) for agricultural land suitability evaluation (ALSE) through indicator selection, weight determination, and classification of overall suitability scores in Handan, China....

  • Article
  • Open Access
2,327 Views
7 Pages

On Homogeneous Combinations of Linear Recurrence Sequences

  • Marie Hubálovská,
  • Štěpán Hubálovský and
  • Eva Trojovská

3 December 2020

Let (Fn)n0 be the Fibonacci sequence given by Fn+2=Fn+1+Fn, for n0, where F0=0 and F1=1. There are several interesting identities involving this sequence such as Fn2+Fn+12=F2n+1, for all n0. In 2012, Chaves, Marques and Togbé prove...

  • Article
  • Open Access
1 Citations
2,380 Views
16 Pages

23 June 2020

Swing usually occurs in the maneuver process of a tethered combination, which is constituted of a platform, a tether and a target (i.e., space debris) for capture. Therefore, a dynamical model of the space tethered combination was established, based...

  • Article
  • Open Access
5 Citations
1,900 Views
28 Pages

Handling Non-Linearities in Modelling the Optimal Design and Operation of a Multi-Energy System

  • Antoine Mallégol,
  • Arwa Khannoussi,
  • Mehrdad Mohammadi,
  • Bruno Lacarrière and
  • Patrick Meyer

2 December 2023

Multi-energy systems (MESs) combining different energy carriers like electricity and heat allow for more efficient and sustainable energy solutions. However, optimizing the design and operation of MESs is challenging due to non-linearities in the mat...

  • Article
  • Open Access
1 Citations
3,447 Views
26 Pages

5 October 2021

Over the last several decades, the scheduling of linear construction projects (LCPs) has been explored extensively by experts. The linear scheduling method (LSM), which focuses on work rate and work continuity, has the advantage of tackling LCPs’ sch...

  • Article
  • Open Access
1,509 Views
11 Pages

26 August 2025

The famous Nyman–Beurling theorem states that the absence of zeroes in the Riemann zeta-function in the half-plane Res > 1/p, p > 1, is equivalent to the circumstance in which the closure of the linear manifold of the functions f(x)=...

  • Article
  • Open Access
155 Citations
15,259 Views
23 Pages

25 April 2017

Recently, several methods have been introduced and applied to estimate daily air surface temperature (Ta) using MODIS land surface temperature data (MODIS LST). Among these methods, the most common used method is statistical modeling, and the most ap...

  • Article
  • Open Access
1,261 Views
19 Pages

28 November 2024

Signal distortion bias (SDB) in Global Navigation Satellite System (GNSS) data processing, defined as the time difference between the distorted chip and the ideal rectangular chip, leads to systematic biases in pseudoranges, affecting satellite and r...

  • Article
  • Open Access
6 Citations
2,216 Views
17 Pages

Application of MLR, BP and PCA-BP Neural Network for Predicting FeO in Bottom-Blowing O2-CaO Converter

  • Xin Ren,
  • Kai Dong,
  • Chao Feng,
  • Rong Zhu,
  • Guangsheng Wei and
  • Chunyang Wang

16 April 2023

In order to accurately predict the FeO content of slag in the bottom-blowing O2-CaO process of the dephosphorization converter, multiple linear regression model, backpropagation (BP) neural network model and principal component analysis–backpro...

  • Article
  • Open Access
18 Citations
6,844 Views
16 Pages

Merging Alternate Remotely-Sensed Soil Moisture Retrievals Using a Non-Static Model Combination Approach

  • Seokhyeon Kim,
  • Robert M. Parinussa,
  • Yi Y. Liu,
  • Fiona M. Johnson and
  • Ashish Sharma

21 June 2016

Soil moisture is an important variable in the coupled hydrologic and climate system. In recent years, microwave-based soil moisture products have been shown to be a viable alternative to in situ measurements. A popular way to measure the performance...

  • Article
  • Open Access
48 Citations
11,790 Views
21 Pages

Drift-Free Position Estimation of Periodic or Quasi-Periodic Motion Using Inertial Sensors

  • Win Tun Latt,
  • Kalyana Chakravarthy Veluvolu and
  • Wei Tech Ang

31 May 2011

Position sensing with inertial sensors such as accelerometers and gyroscopes usually requires other aided sensors or prior knowledge of motion characteristics to remove position drift resulting from integration of acceleration or velocity so as to ob...

  • Article
  • Open Access
1 Citations
1,758 Views
17 Pages

8 October 2023

As a commonly used support system in highway bridge construction, the deformation of steel-tube-columns-combined-with-Bailey-beams doorway supports is often an indicator for safety and quality control. In this paper, through finite element simulation...

  • Article
  • Open Access
899 Views
24 Pages

22 September 2025

This paper addresses the cruise range maximization problem for hypersonic drones by proposing a combined aerodynamic force/thrust vector trajectory optimization method. A novel continuous linear parameterization strategy for trajectory optimization i...

  • Article
  • Open Access
2 Citations
3,349 Views
27 Pages

A Piecewise Linear Regression Model Ensemble for Large-Scale Curve Fitting

  • Santiago Moreno-Carbonell and
  • Eugenio F. Sánchez-Úbeda

30 March 2024

The Linear Hinges Model (LHM) is an efficient approach to flexible and robust one-dimensional curve fitting under stringent high-noise conditions. However, it was initially designed to run in a single-core processor, accessing the whole input dataset...

  • Article
  • Open Access
11 Citations
5,072 Views
21 Pages

Traditional Prediction Techniques and Machine Learning Approaches for Financial Time Series Analysis

  • Claudia Cappello,
  • Antonella Congedi,
  • Sandra De Iaco and
  • Leonardo Mariella

6 February 2025

Accurate financial time series forecasting is critical for effective decision making in areas such as risk management, portfolio optimization, and trading. Given the complexity and volatility of financial markets, traditional forecasting methods ofte...

  • Article
  • Open Access
15 Citations
5,803 Views
24 Pages

20 October 2017

Multi-energy systems can integrate heat and electrical energy efficiently, using resources such as cogeneration. In order to meet energy demand cost-effectively in a multi-energy system, adopting appropriate energy resources at the right time is of g...

  • Article
  • Open Access
10 Citations
4,095 Views
31 Pages

Fresh Yield Estimation of Spring Tea via Spectral Differences in UAV Hyperspectral Images from Unpicked and Picked Canopies

  • Zongtai He,
  • Kaihua Wu,
  • Fumin Wang,
  • Lisong Jin,
  • Rongxu Zhang,
  • Shoupeng Tian,
  • Weizhi Wu,
  • Yadong He,
  • Ran Huang and
  • Yao Zhang
  • + 1 author

17 February 2023

At present, spring tea yield is mainly estimated through a manual sampling survey. Obtaining yield information is time consuming and laborious for the whole spring tea industry, especially at the regional scale. Remote sensing yield estimation is a p...

  • Article
  • Open Access
89 Views
13 Pages

The Multiplicative Perturbation of Group Invertible Operators in Banach Space

  • Saijie Chen,
  • Xiaoli Li,
  • Lanping Zhu and
  • Qianglian Huang

13 February 2026

In this paper, the multiplicative perturbation of group invertible operators is studied. We first establish necessary and sufficient conditions for the existence, along with explicit expressions, of the group inverse under multiplicative perturbation...

  • Article
  • Open Access
36 Citations
5,158 Views
20 Pages

11 January 2019

Integrated energy systems can provide a more efficient supply than individual systems by using resources such as cogeneration. To foster efficient management of these systems, the flexible operation of cogeneration resources should be considered for...

  • Article
  • Open Access
1 Citations
2,745 Views
17 Pages

19 September 2022

Galileo can independently provide navigation and positioning services globally. Galileo satellites transmit quad-frequency E1, E5a, E5b, and E5 signals, which can benefit the integer ambiguity rapid resolution. Firstly, the qualities of Galileo signa...

  • Article
  • Open Access
9 Citations
3,374 Views
19 Pages

30 September 2020

The emergency control of Menglou~Qifang inverted siphon, which is about 72 km long, is the key to the safety of the Northern Hubei Water Transfer Project. Given the complicated layout of this project, traditional emergency control method has been cha...

  • Article
  • Open Access
13 Citations
5,282 Views
24 Pages

Eigenfaces-Based Steganography

  • Tomasz Hachaj,
  • Katarzyna Koptyra and
  • Marek R. Ogiela

25 February 2021

In this paper we propose a novel transform domain steganography technique—hiding a message in components of linear combination of high order eigenfaces vectors. By high order we mean eigenvectors responsible for dimensions with low amount of overall...

  • Article
  • Open Access
6 Citations
2,885 Views
15 Pages

A Novel Framework for Analysis of the Shared Genetic Background of Correlated Traits

  • Gulnara R. Svishcheva,
  • Evgeny S. Tiys,
  • Elizaveta E. Elgaeva,
  • Sofia G. Feoktistova,
  • Paul R. H. J. Timmers,
  • Sodbo Zh. Sharapov,
  • Tatiana I. Axenovich and
  • Yakov A. Tsepilov

21 September 2022

We propose a novel effective framework for the analysis of the shared genetic background for a set of genetically correlated traits using SNP-level GWAS summary statistics. This framework called SHAHER is based on the construction of a linear combina...

  • Article
  • Open Access
3 Citations
1,862 Views
8 Pages

29 October 2021

In the present study paper, a failure (hazard) rate function approximates the probability distribution for the linear combination of a random variable considered a highly complex model. The saddlepoint approximation approach is used to approximate th...

  • Article
  • Open Access
16 Citations
4,592 Views
24 Pages

26 August 2019

Forecasting energy demand is the basis for sustainable energy development. In recent years, the new discovery of East Africa’s energy has completely reversed the energy shortage, having turned the attention of the world to the East African regi...

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