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3,446 Results Found

  • Article
  • Open Access
10 Citations
2,901 Views
20 Pages

Diffusion Limit of Multi-Server Retrial Queue with Setup Time

  • Anatoly Nazarov,
  • Alexander Moiseev,
  • Tuan Phung-Duc and
  • Svetlana Paul

16 December 2020

In the paper, we consider a multi-server retrial queueing system with setup time which is motivated by applications in power-saving data centers with the ON-OFF policy, where an idle server is immediately turned off and an off server is set up upon a...

  • Article
  • Open Access
681 Views
28 Pages

12 December 2025

This paper addresses the flexible job-shop scheduling problem with multiple time factors—namely, transportation time and setup time—as well as job priorities (referred to as FJSP-JPC-TST). An optimization model is established with the obj...

  • Feature Paper
  • Article
  • Open Access
659 Views
40 Pages

20 August 2025

To address the increasing demand for computational and communication resources, modern networked systems often rely on heterogeneous servers, including those requiring setup times, such as virtual machines or servers, and others that are always activ...

  • Article
  • Open Access
9 Citations
3,417 Views
20 Pages

10 March 2023

Hybrid flow-shop scheduling based on the parallel sequential movement mode (HFSP-PSMM) is an extended application of hybrid flow-shop scheduling that ensures that the equipment works continuously during the processing cycle. However, current research...

  • Article
  • Open Access
9 Citations
5,256 Views
25 Pages

20 March 2024

With the gradual emergence of customized manufacturing, intelligent manufacturing systems have experienced widespread adoption, leading to a surge in research interests in the associated problem of intelligent scheduling. In this paper, we study the...

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

3 August 2022

Multi-item and small-lot-size production modes lead to frequent setup, which involves significant setup times and has a substantial impact on productivity. In this study, we investigated the optimal flexible job-shop scheduling problem with a sequenc...

  • Feature Paper
  • Article
  • Open Access
11 Citations
2,599 Views
15 Pages

26 August 2021

Unrelated parallel machine scheduling problems (UPMSP) with various processing constraints have been considered fully; however, a UPMSP with deteriorating preventive maintenance (PM) and sequence-dependent setup time (SDST) is seldom considered. In t...

  • Article
  • Open Access
3 Citations
2,873 Views
34 Pages

Agent Scheduling in Unrelated Parallel Machines with Sequence- and Agent–Machine–Dependent Setup Time Problem

  • Jesús Isaac Vázquez-Serrano,
  • Leopoldo Eduardo Cárdenas-Barrón and
  • Rodrigo E. Peimbert-García

19 November 2021

Assignation-sequencing models have played a critical role in the competitiveness of manufacturing companies since the mid-1950s. The historic and constant evolution of these models, from simple assignations to complex constrained formulations, shows...

  • Article
  • Open Access
19 Citations
4,278 Views
14 Pages

31 December 2022

As environmental awareness grows, energy-aware scheduling is attracting increasing attention. Compared with traditional flexible job shop scheduling problem (FJSP), FJSP, with considering sequence-dependent setup times and transportation times (FJSP-...

  • Article
  • Open Access
11 Citations
8,142 Views
23 Pages

Hybrid Flow Shop with Unrelated Machines, Setup Time, and Work in Progress Buffers for Bi-Objective Optimization of Tortilla Manufacturing

  • Victor Hugo Yaurima-Basaldua,
  • Andrei Tchernykh,
  • Francisco Villalobos-Rodríguez and
  • Ricardo Salomon-Torres

9 May 2018

We address a scheduling problem in an actual environment of the tortilla industry. Since the problem is NP hard, we focus on suboptimal scheduling solutions. We concentrate on a complex multistage, multiproduct, multimachine, and batch production env...

  • Article
  • Open Access
11 Citations
4,831 Views
35 Pages

14 December 2017

This paper focuses on the flowshop scheduling problem with sequence dependent setup times (FSSP-SDST), which has been an investigated object for decades as one of the most popular scheduling problems in manufacturing systems. A novel hybrid local sea...

  • Article
  • Open Access
4 Citations
3,679 Views
15 Pages

25 May 2023

In this paper, operating room planning and scheduling problems have been studied. In operating room planning, the allocation of patients to operating rooms and their sequencing are critical in determining the performance of operating rooms. In this p...

  • Article
  • Open Access
1 Citations
1,991 Views
14 Pages

22 January 2021

This paper proposes a novel disruptive innovation-like algorithm (DILA) for the problem of scheduling a single machine with sequence-dependent family setup times to minimize the total tardiness. The proposed algorithm is derived from Christensen&rsqu...

  • Feature Paper
  • Article
  • Open Access
7 Citations
6,808 Views
11 Pages

13 September 2023

The business world is becoming more competitive. Therefore, it is crucial to increase the flexibility of production by decreasing the time used in the processes of preparing the production lines for new items’ production, reducing changeover an...

  • Article
  • Open Access
8 Citations
706 Views
27 Pages

20 June 2025

We study single-machine group green scheduling considering group setup time deterioration effects and job-processing time learning effects, where the setup time of a group is a general deterioration function on its starting setup time and the process...

  • Article
  • Open Access
5 Citations
5,570 Views
15 Pages

31 March 2020

Backstroke starts involve the athlete starting from a flexed position with their feet against the pool wall and then extending their ankles, knees, hips and back to push off; however, swimmers can start in different positions. The purpose of this stu...

  • Article
  • Open Access
11 Citations
2,229 Views
25 Pages

3 January 2024

Producers are encouraged to reduce their energy consumption of manufacturing systems by applying less-energy-intensive modern technologies and advanced machine tools and operating methods at the system level. In the paper, organizational and analytic...

  • Article
  • Open Access
41 Citations
6,719 Views
25 Pages

3 April 2019

This model investigates the variable production cost for a production house; under a two-echelon supply chain management where a single vendor and multi-retailers are involved. This production system goes through a long run system and generates an ou...

  • Article
  • Open Access
3 Citations
1,794 Views
12 Pages

18 March 2024

This paper investigates a two-machine group scheduling problem with sequence-independent setup times and round-trip transportation times, which is derived from the production management requirements of modern steel manufacturing enterprises. The obje...

  • Article
  • Open Access
19 Citations
4,116 Views
19 Pages

Flexible Job Shop Scheduling Problem with Fuzzy Times and Due-Windows: Minimizing Weighted Tardiness and Earliness Using Genetic Algorithms

  • Emiro Antonio Campo,
  • Jose Alejandro Cano,
  • Rodrigo Gómez-Montoya,
  • Elkin Rodríguez-Velásquez and
  • Pablo Cortés

20 September 2022

The current requirements of many manufacturing companies, such as the fashion, textile, and clothing industries, involve the production of multiple products with different processing routes and products with short life cycles, which prevents obtainin...

  • Article
  • Open Access
1,386 Views
10 Pages

4 August 2025

Objectives: Surface-Guided Radiation Therapy (SGRT) has been widely adopted in breast cancer radiotherapy, particularly for improving setup accuracy and motion management. Recently, its application in lung cancer has attracted growing interest due to...

  • Article
  • Open Access
1 Citations
1,344 Views
33 Pages

28 January 2025

This work investigates the bi-objective integrated scheduling of job shop problems and material handling robots with setup time. The objective is to minimize the maximum completion time and the mean of earliness and tardiness simultaneously. First, a...

  • Article
  • Open Access
1,878 Views
23 Pages

13 October 2025

The flexible job shop scheduling problem (FJSP) becomes significantly more complex when real-world factors such as due dates, sequence-dependent setup times, and processing times are considered as multiple criteria. This study presents a hybrid sched...

  • Article
  • Open Access
2 Citations
3,663 Views
14 Pages

24 October 2018

The dynamic lot-sizing problem under a time-varying environment considers new features of the production system where factors such as production setup cost, unit inventory-holding cost, and unit price of manufacturing resources may vary in different...

  • Article
  • Open Access
3,675 Views
28 Pages

13 August 2025

Strong technological development and competitive pressures have driven organizations, especially in the automotive sector, to implement strategies that enhance operational efficiency, thereby improving their performance. One critical topic is the red...

  • Article
  • Open Access
246 Views
33 Pages

9 January 2026

Most multi-objective studies on distributed hybrid flow shops that include tardiness-related objectives focus solely on optimizing makespan alongside a single tardiness objective. However, in real-world scenarios with strict contractual deadlines or...

  • Article
  • Open Access
2 Citations
1,885 Views
22 Pages

9 April 2024

In this paper, we develop a finite-difference time-domain (FDTD) model in which the time-evolving electrical conductivity of the air ionization plasma in DC voltage needed-plate setup is represented. Maxwell’s equations are solved using the FDT...

  • Article
  • Open Access
3 Citations
1,621 Views
15 Pages

13 November 2022

In the manuscript, a probability distribution of the queue length is studied in a model with group Markov arrivals, arbitrarily distributed service times and finite waiting room. After the period of suspension of service due to lack of packets, each...

  • Article
  • Open Access
17 Citations
3,238 Views
16 Pages

30 September 2019

Order acceptance and scheduling (OAS) problems are realistic for enterprises. They have to select the appropriate orders according to their capacity limitations and profit consideration, and then complete these orders by their due dates or no later t...

  • Article
  • Open Access
1,545 Views
17 Pages

10 July 2025

This paper aims to enhance operational efficiency in the labor-intensive production of composite wind turbine blades, which are critical components of renewable energy systems. The study was conducted at a wind energy facility in Türkiye, integr...

  • Article
  • Open Access
28 Citations
6,975 Views
19 Pages

Pulsed Optically Pumped Magnetometers: Addressing Dead Time and Bandwidth for the Unshielded Magnetorelaxometry of Magnetic Nanoparticles

  • Aaron Jaufenthaler,
  • Thomas Kornack,
  • Victor Lebedev,
  • Mark E. Limes,
  • Rainer Körber,
  • Maik Liebl and
  • Daniel Baumgarten

9 February 2021

Magnetic nanoparticles (MNP) offer a large variety of promising applications in medicine thanks to their exciting physical properties, e.g., magnetic hyperthermia and magnetic drug targeting. For these applications, it is crucial to quantify the amou...

  • Article
  • Open Access
7 Citations
3,402 Views
18 Pages

24 April 2023

The circular economy in the construction industry is still in its infancy. It seems particularly difficult for companies in this sector to make strategic decisions that enable sustainable operations and ensure long-term business success. This article...

  • Letter
  • Open Access
8 Citations
4,641 Views
12 Pages

A New Setup for Real-Time Investigations of Optical Fiber Sensors Subjected to Gamma-Rays: Case Study on Long Period Gratings

  • Andrei Stancalie,
  • Flavio Esposito,
  • Constantin Daniel Neguț,
  • Marian Ghena,
  • Razvan Mihalcea,
  • Anubhav Srivastava,
  • Stefania Campopiano and
  • Agostino Iadicicco

24 July 2020

In this work, we present a new setup for real-time investigations of optical fibers and optical fiber sensors while being subjected to gamma-rays. The investigation of the radiation effects on novel or well-assessed sensing devices has attracted a lo...

  • Proceeding Paper
  • Open Access
1,088 Views
6 Pages

24 September 2024

This paper introduces the Improved Evolution Strategy Reinforcement Learning (I-ES) algorithm. The I-ES algorithm is designed to minimize the makespan and total energy consumption (TEC) in a multi-objective dynamic scheduling problem within a hybrid...

  • Article
  • Open Access
1 Citations
1,262 Views
22 Pages

11 February 2025

In this paper, a Distributed Mixed No-Idle Permutation Flowshop Scheduling Problem with Sequence-Dependent Setup Times (DMNIPFSP/SDST) is studied. Firstly, a multi-objective optimization model with completion time (makespan), Total Energy Consumption...

  • Article
  • Open Access
4 Citations
2,557 Views
19 Pages

In the present study, it was shown that a newly developed two-chamber setup (TCS) for containment investigations consisting of an emission and a detection chamber may serve to predict the dustiness of HPAPIs in a sealed system at different flow condi...

  • Review
  • Open Access
8 Citations
8,261 Views
20 Pages

Surface-Guided Radiotherapy: Can We Move on from the Era of Three-Point Markers to the New Era of Thousands of Points?

  • Michalis Psarras,
  • Despoina Stasinou,
  • Theodoros Stroubinis,
  • Maria Protopapa,
  • Anna Zygogianni,
  • Vassilis Kouloulias and
  • Kalliopi Platoni

The surface-guided radiotherapy (SGRT) technique improves patient positioning with submillimeter accuracy compared with the conventional positioning technique of lasers using three-point tattoos. SGRT provides solutions to considerations that arise f...

  • Article
  • Open Access
14 Citations
3,719 Views
5 Pages

This research addresses a specific issue in the field of operation scheduling. Even though there are lots of researches on the field of planning and scheduling, a specific scheduling problem is introduced here. We focus on the operation scheduling re...

  • Article
  • Open Access
460 Views
27 Pages

12 December 2025

For a no-wait flow shop with continuous-flow characteristics, this study simultaneously considers machine setup times and rated processing speed constraints, aiming to minimize the sum of the maximum completion time and the maximum tardiness. First,...

  • Article
  • Open Access
22 Citations
7,626 Views
15 Pages

Analysis of the Implementation of the Single Minute Exchange of Die Methodology in an Agroindustry through Action Research

  • Murilo Augusto Silva Ribeiro,
  • Ana Carolina Oliveira Santos,
  • Gabriela da Fonseca de Amorim,
  • Carlos Henrique de Oliveira,
  • Rodrigo Aparecido da Silva Braga and
  • Roberto Silva Netto

20 April 2022

This work aims to implement and analyze the effect of the Single Minute Exchange of Die (SMED) implementation in the bean packaging operation in a company in east Minas Gerais, Brazil. Design/Methodology/Approach: The research methodology used was ac...

  • Article
  • Open Access
1 Citations
2,902 Views
15 Pages

14 September 2018

This article introduces a new approach in the field of network optimization based on Transmission Optimization Metric (TOM), which is aimed at improving traffic flow continuity and increasing the chances for traffic flow sustainability in a way that...

  • Article
  • Open Access
1 Citations
1,407 Views
29 Pages

22 August 2025

Efficient production scheduling is a key challenge in industrial operations and continues to attract significant interest within the field of operations research. This paper investigates a range of methodological approaches designed to solve the perm...

  • Article
  • Open Access
8 Citations
2,940 Views
19 Pages

A Statistical Comparison of Metaheuristics for Unrelated Parallel Machine Scheduling Problems with Setup Times

  • Ana Rita Antunes,
  • Marina A. Matos,
  • Ana Maria A. C. Rocha,
  • Lino A. Costa and
  • Leonilde R. Varela

12 July 2022

Manufacturing scheduling aims to optimize one or more performance measures by allocating a set of resources to a set of jobs or tasks over a given period of time. It is an area that considers a very important decision-making process for manufacturing...

  • Article
  • Open Access
15 Citations
10,958 Views
29 Pages

25 November 2021

In time attack races, aerodynamics plays a vital role in achieving short track times. These races are characterized by frequent braking and acceleration supported by aerodynamic downforce. Usually, typical cars are modified for these races by amateur...

  • Article
  • Open Access
19 Citations
6,978 Views
20 Pages

Real-Time 3D Object Detection and SLAM Fusion in a Low-Cost LiDAR Test Vehicle Setup

  • Duarte Fernandes,
  • Tiago Afonso,
  • Pedro Girão,
  • Dibet Gonzalez,
  • António Silva,
  • Rafael Névoa,
  • Paulo Novais,
  • João Monteiro and
  • Pedro Melo-Pinto

15 December 2021

Recently released research about deep learning applications related to perception for autonomous driving focuses heavily on the usage of LiDAR point cloud data as input for the neural networks, highlighting the importance of LiDAR technology in the f...

  • Article
  • Open Access
8 Citations
3,421 Views
25 Pages

8 November 2021

The aim of this paper is to present a model of energy efficient scheduling for series production systems during operation, including setup and shutdown activities. The flow shop system together with setup, shutdown times and energy consumption are co...

  • Article
  • Open Access
18 Citations
6,890 Views
27 Pages

Flexible Job Shop Scheduling Problem with Sequence Dependent Setup Time and Job Splitting: Hospital Catering Case Study

  • Fatima Abderrabi,
  • Matthieu Godichaud,
  • Alice Yalaoui,
  • Farouk Yalaoui,
  • Lionel Amodeo,
  • Ardian Qerimi and
  • Eric Thivet

7 February 2021

This paper aims to study a real case of an optimization problem derived from a hospital supply chain. The present work focuses on developing operational decision support models and algorithms for production process scheduling in hospital catering. Th...

  • Conference Report
  • Open Access
954 Views
1 Page

Diffuse reflectance near-infrared (NIR) spectroscopy is a non-invasive and widely used technology with the potential for a wide range of applications in the pharmaceutical industry, ranging from raw material identification to final product qualificat...

  • Article
  • Open Access
98 Views
29 Pages

7 February 2026

Flexible Job Shop Scheduling Problems with setup and transportation times (FJSP-TS) involve assigning operations to machines and sequencing them under additional time constraints, making the problem highly complex and common in modern manufacturing s...

  • Article
  • Open Access
1 Citations
1,170 Views
28 Pages

Combining Space, Time, and Language in Active Learning Setups

  • Pedro Juan Roig,
  • Salvador Alcaraz,
  • Katja Gilly,
  • Cristina Bernad and
  • Carlos Juiz

Online education provides a wide range of possibilities in order to setup active learning environments. Different dimensions related to the teaching/learning process are available in such environments, although the focus in this paper is set on just...

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