Results 51 to 60 of about 3,928 (192)

Bi-Objective Integrated Scheduling of Quay Cranes and Automated Guided Vehicles

Journal of Marine Science and Engineering, 2023
Operational efficiency is one of the key performance indicators of a port’s service level. In the process of making scheduling plans for container terminals, different types of equipment are usually scheduled separately.
Yating Duan, Hongxiang Ren, Fuquan Xu, Xiao Yang, Yao Meng   +4 more
doaj   +1 more source

Optimal Scheduling of AGVs in a Reentrant Blocking Job-shop

Procedia CIRP, 2018
Abstract This work presents a mixed integer linear programming (MILP) formulation to find an optimal solution to a small instance of the complex scheduling problem in a make-to-order production. Minimizing the make span, the MILP generates the optimal schedule for the autonomous guided vehicles (AGVs) in a blocking reentrant job shop environment with
Heger, Jens, Voß, Thomas
openaire   +1 more source

Whole Blood Transcriptomic Analysis of Sickle Cell Trait

European Journal of Haematology, EarlyView.
ABSTRACT Sickle cell trait (SCT) is the heterozygous carrier state for the HBB missense variant which causes sickle cell disease (SCD). SCT has been associated with increased risk of venous thromboembolism and chronic kidney disease as well as alterations in clinical laboratory parameters. To investigate differential gene expression in SCT, we used RNA
Mari Johnson, Yanwei Cai, Ana Gabriela Vasconcelos, Peter Orchard, Paul L. Auer, Guillaume Lettre, Jia Wen, Nora Franceschini, Charles Kooperberg, Wei Sun, Li Hsu, Laura M. Raffield, Alex P. Reiner   +12 more
wiley   +1 more source

Process Optimization for Complex Product Assembly Workshops with AGV Integration via Discrete Event Simulation

Applied Sciences
For complex assembly workshops, optimizing AGV scheduling is critical to enhancing production efficiency and resource utilization. Traditional scheduling methods often rely on fixed priority rules and basic path planning algorithms, which are ...
Hailong Song, Shengluo Yang, Shuoxin Yin, Zhigang Xu   +3 more
doaj   +1 more source

Collaborative platooning and routing for mixed fleets of electric automated vehicles and conventional trucks

International Transactions in Operational Research, EarlyView.
Abstract The application of automated ground vehicles (AGVs) is well‐established in closed environments such as port terminals, while their operation in open areas remains challenging. In this work, we set out to overcome this limitation by introducing platooning as a transfer mode in heterogeneous vehicle networks.
Nadia Pourmohammad‐Zia, Rudy R. Negenborn, Frederik Schulte   +2 more
wiley   +1 more source

An effective hybrid algorithm for joint scheduling of machines and AGVs in flexible job shop

Measurement + Control, 2023
Flexible job shops motivated by small batches and multiple orders require the collaboration of machines and automated guided vehicles (AGVs) scheduling to boost shop floor flexibility and productivity. The joint scheduling of machines and AGVs can better
Xiaoyu Wen, Yunzhan Fu, Wenchao Yang, Haoqi Wang, Yuyan Zhang, Chunya Sun   +5 more
doaj   +1 more source

Multi-objective genetic algorithms for scheduling mateiral handling equipment at automated air cargo terminals [PDF]

, 2004
In order to improve thc productivitics of a typical cargo handling system, it is important to reduce the waiting time of stacker crancs (SCs) and the total traveling time of automated guided vehicles (AGVs) through efficient scheduling of SCs and ACVs ...
Lau, HYK, Zhao, Y
core   +1 more source

Exact and metaheuristic approaches to minimizing makespan in parallel machine scheduling with conflicting jobs

International Transactions in Operational Research, EarlyView.
Abstract We address the scheduling conflicting jobs on parallel identical machines problem with makespan minimization, a classical and computationally challenging variant of parallel machine scheduling. We develop and evaluate three distinct solution methodologies: a novel constraint programming (CP) formulation, and two metaheuristics: a multi ...
Roberto Maria Rosati, Dinh Quy Ta, Minh Hoàng Hà, Andrea Schaerf   +3 more
wiley   +1 more source

Rescheduling frequency in an FMS with uncertain processing times and unreliable machines [PDF]

, 1999
Cataloged from PDF version of article.This paper studies the scheduling/rescheduling problem in a multi-resource FMS environment. Several reactive scheduling policies are proposed to address the effects of machine breakdowns and processing time ...
Karabuk, S., Sabuncuoglu, I.
core   +1 more source

Application of Embodied Intelligence in Intelligent Warehousing and Logistics Scenarios

Engineering Reports, Volume 8, Issue 3, March 2026.
Embodied intelligence (EI) enhances digital platform efficiency in intelligent logistics, reducing transportation costs, improving throughput by 37.5%, and lowering energy consumption. EI‐driven improvements lead to discriminatory pricing strategies, while lightweight encryption ensures minimal performance overhead, maintaining real‐time operations ...
Jun Zhang, Chuan Zhang, Mingtao Zhang
wiley   +1 more source