Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Simulation and optimization of container terminal operations: a case
  study   Container terminals are facing a set of interrelated problems. Container
handling problems at container terminals are NP-hard problems. The docking time
of container ships at the port must be optimized. In this paper we have built a
simulation model that integrates all the activities of a container terminal.
The proposed approach is applied on a real case study data of container
terminal at El-Dekheilla port. The results show that the proposed approach
reduced the ship turnaround time in port where 51% reduction in ship service
time (loading/unloading) in port is achieved.

20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org