Sharif Digital Repository

Efficient utilization of runways, as major bottlenecks at airports, not only minimizes flight delays but also plays a vital role in reducing fuel emissions and mitigating environmental impacts. Aircraft scheduling problem studied in this paper seeks to improve this efficiency through optimally scheduling departure/arrival aircraft on multiple runways. The primary innovation of this study lies in accounting for aircraft taxi times between runways and gates, as well as the landing delay patterns, which have not been simultaneously addressed in the literature. To solve the problem, an enhanced branch-and-price method has been developed, improving upon existing approaches in the literature. It... 

Many machine learning models make confident decisions when encountering out-of-distribution (OOD) data which differ from their training data distribution. However, these models should not make predictions on unfamiliar samples they have not seen before, and rejecting such unknown samples is crucial for deploying trustworthy models in real-world applications. Consequently, OOD detection has garnered significant attention over the past decade. Despite the development of highly accurate methods to address this issue, there has been little focus on their robustness against various factors. One common factor threatening the robustness of these methods is the presence of spurious correlations in... 

Today due to increasing demand of using energy and petroleum products, finding optimum ways to produce more oil and gas in a way which petroleum reservoirs faces less pressure drop is very necessary. Therefore, petroleum engineers face multiphase flow proportionally more than other issues. So, they have to comprehend this issue in a complete manner in order to discover the best practical ways for maximum utilization. Researchers in different ways tried to model multiphase flow, but many of provided models are so complicated and sometimes have low accuracy. In this project we tried to present a model that in simplicity has high accuracy and works in a way that apperceiving it, is very...