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71 Results Found

  • Article
  • Open Access
43 Citations
12,869 Views
16 Pages

17 June 2017

Strong coupling between values at different times that exhibit properties of long range dependence, non-stationary, spiky signals cannot be processed by the conventional time series analysis. The autoregressive fractional integral moving average (ARF...

  • Article
  • Open Access
5 Citations
4,488 Views
24 Pages

Uncertainty-Aware Self-Attention Model for Time Series Prediction with Missing Values

  • Jiabao Li,
  • Chengjun Wang,
  • Wenhang Su,
  • Dongdong Ye and
  • Ziyang Wang

Missing values in time series data present a significant challenge, often degrading the performance of downstream tasks such as classification and forecasting. Traditional approaches address this issue by first imputing the missing values and then in...

  • Article
  • Open Access
2 Citations
991 Views
26 Pages

The time-fractional generalized Burger–Fisher equation (TF-GBFE) is utilized in many physical applications and applied sciences, including nonlinear phenomena in plasma physics, gas dynamics, ocean engineering, fluid mechanics, and the simulati...

  • Article
  • Open Access
3 Citations
5,840 Views
19 Pages

10 January 2022

This paper proposes a previously unconsidered generalization of the Lindley distribution by allowing for a measure of noncentrality. Essential structural characteristics are investigated and derived in explicit and tractable forms, and the estimabili...

  • Article
  • Open Access
8 Citations
2,736 Views
20 Pages

Joint Trajectory Planning, Service Function Deploying, and DAG Task Scheduling in UAV-Empowered Edge Computing

  • Runa Jia,
  • Kuang Zhao,
  • Xianglin Wei,
  • Guoliang Zhang,
  • Yangang Wang and
  • Gangyi Tu

5 July 2023

Efficient task scheduling plays a key role in unmanned aerial vehicle (UAV)-empowered edge computing due to the limitation in energy supply and computation resource on the UAV platforms. This problem becomes much more complicated when the processing-...

  • Article
  • Open Access
18 Citations
3,478 Views
25 Pages

Background: Improper disposal of urban medical waste is likely to cause a series of neglective impacts. Therefore, we have to consider how to improve the efficiency of urban medical waste recycling and lowering carbon emissions when facing disposal....

  • Article
  • Open Access
5 Citations
2,044 Views
14 Pages

18 January 2023

This study proposes innovative methods for the time-fractional modified Degasperis–Procesi (mDP) and Camassa–Holm (mCH) models of solitary wave solutions. To formulate the concepts of the homotopy perturbation transform method (HPTM) and...

  • Article
  • Open Access
9 Citations
2,224 Views
22 Pages

Encrypted Model Predictive Control of a Nonlinear Chemical Process Network

  • Yash A. Kadakia,
  • Atharva Suryavanshi,
  • Aisha Alnajdi,
  • Fahim Abdullah and
  • Panagiotis D. Christofides

20 August 2023

This work focuses on developing and applying Encrypted Lyapunov-based Model Predictive Control (LMPC) in a nonlinear chemical process network for Ethylbenzene production. The network, governed by a nonlinear dynamic model, comprises two continuously...

  • Article
  • Open Access
4 Citations
2,943 Views
16 Pages

3 September 2023

This paper considers a pickup and delivery problem in automobile logistics. In the daily operations of a third-party logistics company (3PL), decisions must be made for two kinds of demands: delivering finished automobiles from an outbound warehouse...

  • Feature Paper
  • Article
  • Open Access
574 Views
30 Pages

Operational Optimization of Seasonal Ice-Storage Systems with Time-Series Aggregation

  • Maximilian Hillen,
  • Patrik Schönfeldt,
  • Philip Groesdonk and
  • Bernhard Hoffschmidt

14 November 2025

The transition to sustainable energy systems increasingly relies on advanced optimization methods to address the challenges of designing and operating them efficiently. Seasonal storage systems play a pivotal role in aligning renewable energy generat...

  • Article
  • Open Access
21 Citations
6,352 Views
24 Pages

30 June 2017

The increasing concern on global warming is prompting transportation sector to take into account more sustainable operation strategies. Among them, intermodal transportation (IT) has already been regarded as one of the most effective measures on carb...

  • Article
  • Open Access
11 Citations
2,290 Views
27 Pages

In this article, starting from a benchmark represented by a Direct Current-to-Direct Current (DC-DC) three-phase power electronic converter used as an interface and interconnection between the grid and a DC microgrid, we compare the performances of a...

  • Article
  • Open Access
257 Views
13 Pages

Conceptual Analog to Wave Interference with Discrete Particles

  • Ioannis Contopoulos and
  • Evangelos Chaniadakis

9 December 2025

We present a numerical implementation of the proposed Source–Detector Resonance (SDR) as a conceptual analog of a Double-Slit Interference Experiment with discrete particles. Two periodic streams of particles are emitted from two point sources...

  • Article
  • Open Access
5 Citations
1,174 Views
27 Pages

This work explores modern mathematical avenues as part of fractional calculus research. We apply fractional dispersion relations to the fractional wave equation to numerically examine various formulations of the generalized fractional wave equation....

  • Article
  • Open Access
13 Citations
4,537 Views
13 Pages

Mean Squared Variance Portfolio: A Mixed-Integer Linear Programming Formulation

  • Francisco Fernández-Navarro,
  • Luisa Martínez-Nieto,
  • Mariano Carbonero-Ruz and
  • Teresa Montero-Romero

23 January 2021

The mean-variance (MV) portfolio is typically formulated as a quadratic programming (QP) problem that linearly combines the conflicting objectives of minimizing the risk and maximizing the expected return through a risk aversion profile parameter. In...

  • Article
  • Open Access
2 Citations
1,571 Views
26 Pages

A Potent Fractional-Order Controller for Interconnected Multi-Source Microgrids

  • Ioannis Moschos,
  • Ioannis Mastoras and
  • Constantinos Parisses

6 October 2023

Frequency deviations and the capability to cope with demand are two of the main problems in isolated or interconnected microgrids, especially with the increase in the penetration level of renewable energy sources. Those two problems call for new impr...

  • Article
  • Open Access
2,580 Views
26 Pages

The Optimal Selection of Renewable Energy Systems Based on MILP for Two Zones in Mexico

  • Alan Ortiz Contreras,
  • Mohamed Badaoui and
  • David Sebastián Baltazar

22 July 2024

This paper presents a series of enhancements to a previously proposed mixed-integer linear programming (MILP) model for investment decisions and operational planning in distributed generation (DG) systems. The main contribution of this study consists...

  • Article
  • Open Access
2 Citations
3,305 Views
16 Pages

17 September 2021

“Pass-by-pass” or “track-to-track” ambiguity resolution removes Global Navigation Satellite System (GNSS) satellite hardware delays between adjacent undifferenced (UD) ambiguities, which is often applied in precise orbit determination (POD) for Low E...

  • Article
  • Open Access
4 Citations
2,087 Views
27 Pages

30 March 2023

The management of the supply chain for enterprise-wide operations generally consists of strategic, tactical, and operational decision stages dependent on one another and affecting various time scales. Their integration usually leads to multiscale mod...

  • Article
  • Open Access
1 Citations
750 Views
19 Pages

In this study, we focus on solving the nonlinear time-fractional Hirota–Satsuma coupled Korteweg–de Vries (KdV) and modified Korteweg–de Vries (MKdV) equations, using the Yang transform iterative method (YTIM). This method combines...

  • Article
  • Open Access
801 Views
21 Pages

Integrity Monitoring for BDS/INS Real-Time Kinematic Positioning Between Two Moving Platforms

  • Yangyang Li,
  • Weiming Tang,
  • Chenlong Deng,
  • Xuan Zou,
  • Siyu Zhang,
  • Zhiyuan Li and
  • Yipeng Wang

9 August 2025

In recent years, the rapid development of moving platforms, especially unmanned aerial vehicles (UAVs) and unmanned ground vehicles (UGVs), has promoted their widespread applications in various fields such as precision agriculture and formation fligh...

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