Journal of Naval Sciences and Engineering

71-90

Authors: Tansel ERKMEN

Turkey has great potential in liquified gas bunkering industry. Early application of liquified gas terminal investments is high likely to generate substantial income for the shipping industry of Turkey and to its economy as a whole. The marine shipping industry is facing challenges to reduce engine exhaust emissions and greenhouse gases (GHGs) from their ships. LNG is a potential solution for meeting these requirements. Progress in the marine fuel industry has become critical to shipowners and cargo owners, since fuel consumption accounts for much of the total cost of travel and can be a significant part of total transport costs. LNG bunker in Northern Europe is advancing, however, worldwide lack of supply is undermining the spread of LNG bunkering. Therefore, providing security of supply in the Eastern Mediterranean could represent an important milestone towards LNG supply chain implementation.

100-109

Authors: Tunç MEDENİ, Tolga MEDENİ, Demet SOYLU

This paper aims to reflect on the increasing need for the electronic cross- country service provision, and provide certain solution suggestions to address related issues, benefiting from the experience and expertise of the coauthors. While the current state is being presented and suggestions are being provided, examples from transportation and logistics areas are given, with a particular focus on food supply chain and thus technology support in agriculture and livestock management activities. Accordingly, the paper is finalised with a specific suggestion on block-chain-based cross-country information system for livestock supply chain management. The resulting work is hoped to contribute to the development and provision of high quality, user-oriented electronic cross-country services.

121-139

Authors: Yaşanur KAYIKÇI

An efficient, effective and sustainable freight transport network is a crucial determinant for economic growth and development. This network needs to be structured as resilient as practicable and also quickly adoptable and adaptable to meet the needs of transport users and provide alternative optimal routes, if it is affected by disruptive events. This paper presents a route selection model which supports transport planners to decide rapidly on an optimal transport route in case of disruption in a multimodal freight transport network. An integrated method based on Fuzzy Analytic Hierarchy Process and Fuzzy Goal Programming is developed to support the decision of route selection.

1-22

Authors: Gülçin SEDEFOĞLU, Gülşen AKMAN

Nowadays competition among companies is rapidly increasing with the progress of technology. In order to stand out in this competition environment, companies need to be renovated in their own fields. Many companies use lean manufacturing techniques to achieve this renewal. This study was performed in a company operating in the automotive industry. In this study, the production line which will be improved is determined by using the Analytical Hierarchy Process method. Next, Value Stream Mapping has been applied to the determined product line. We revealed the current situation of the production line by drawing current state mapping. Second, the future state mapping is drawn up to solve the problems presented in the current state mapping, and an action plan was presented for improvements.

32-53

Authors: İbrahim GÜLATAŞ, Selçuk BAKTIR

The Unmanned Aerial Vehicle (UAV) technology is a rapidly emerging technology and it has found widespread usage. While UAVs are still in their development phase without any existing commonly accepted standards for their underlying technologies and their forensic investigation, they have an increasing record of criminal usage. This urges the research community to develop techniques to detect and prevent illegal usage of UAVs. With this work, we present a seven-phase UAV digital forensics investigation framework to standardize the investigation process for UAVs. We tested our framework on the DJI Phantom III Professional UAV which is one of the most popular commercial UAVs in the market. Three kinds of forensic artifacts are found on the sample UAV and these artifacts are examined deeply. Two of the artifacts are log files stored as binary files and the other artifact is the EXIF header of the images that are captured by UAV's onboard camera. As a result of our investigation, we are able to regenerate the flight path of the UAV. As a final step of our research, we compare our investigation framework with the existing framework on the literature and reveal the differences of both frameworks.