This research deals with a real-world planning problem in railway infrastructure operations. It is part of the RECIFE project, which seeks to develop a decision support software to help evaluate the capacity of a rail junction or station. To this end, the project is working on a timetable optimization model, as well as timetable evaluation modules. This paper presents a module for evaluating ti...

Pressure not only influences the yield in the synthesis of a two-station [2]rotaxane, it also determines the distribution of the co-conformational isomers. At high pressure cyclobis(paraquat-p-phenylene) is preferentially assembled around a monopyrrolotetrathiafulvalene unit, while at low pressure it is preferentially assembled around a hydroquinone unit.

Interannual variations in Gulf of Alaska shelf temperature and salinity could significantly influence this ecosystem and hence the recovery and restoration of organisms and services affected by the Exxon Valdez oil spill. This variability is being quantified from time series at hydrographic station GAK 1, near Seward Alaska, and within the Alaska Coastal Current. Data from this station spans a ...

the present sought to draw a comparison between model predictive control performance and two other controllers named simple pi and selective pi in controlling large-scale natural gas transport networks. a nonlinear dynamic model of representative gas pipeline was derived from pipeline governing rules and simulated in simulink® environment of matlab®. control schemes were designed to provide a s...

Although many studies have explored the relationship between built environment and metro ridership, literature offers limited evidence on nonlinear effect of origin destination environments station-to-station ridership. Using data from Chongqing, this study uses gradient boosting decision trees (GBDT) model to explore impact The research results show that at has a greater ridership than destina...