Journal of ETA Maritime Science

189-190

Authors: Selçuk NAS

We are together with you once more with the third issue of its fourth publishing year of JEMS. This issue consists mostly of ‘’port’’ subjects along with five precious researches. Our efforts to increase the national and international recognition of our Journal still continue. In national extent, the evaluation process under the scope of Engineering Sciences of TUBITAK-ULAKBIM has been concluded, and I would gladly like to announce that we have received an acceptance by year of 2015. I hereby present our gratitude to our writers who provide their valuable researches, our reviewers, section editors, foreign language editors and layout editors who strictly follow our publishing policies and ensure that we publish qualified issues and our sponsor ARKAS for their valuable contribution in publishing and distribution of this issue. Sincerely,

205-214

Authors: Emre PEŞMAN

Ship operators increase or decrease thrust force of ships to avoid parametric roll motion. These operations cause varying acceleration values. In this study, influence of variable acceleration and deceleration of ships on roll motion is investigated in longitudinal waves. The method which is referred as simple model is utilized for analysis. Simple Model is one degree of freedom nonlinear parametric roll motion equation which contains changing velocity and restoring moment in waves with respect to time. Ship velocities in waves are predicted by XFlow software for various thrust forces. Results indicate that variable acceleration has significant effect on parametric roll phenomenon.

235-247

Authors: Ünal ÖZDEMİR

Bu çalışma ile limanlarda meydana gelen iş kazalarının nedenleri ve bu kazaların önlenebilmesi/azaltılabilmesi için yapılması gerekenler ele alınmıştır. Çalışmada limanlarda yaşanan iş kazalarına neden olan etkenler tespit edilmiş ve bu soruna ilişkin uygulanabilir, alternatif çözüm önerileri sunulmaya çalışılmıştır. Kazaya sebep olan nedenlerin birbirleri ile olan ilişkileri, önem dereceleri bulanık DEMATEL (The Decision Making Trial and Evaluation Laboratory) ve alternatif çözüm önerileri arasında sıralama yapabilmek için de bulanık TOPSIS (Technique for Order Performance by Similarity to Ideal Solution) yönteminin ele alındığı bir model yaklaşımı kullanılmıştır. Çalışmanın sonuçlarına göre limanlarda yaşanan kazalara neden olan en önemli faktörlerden bazıları sırasıyla; “insan hatasına bağlı kazalar”, “yönetimsel sebeplere bağlı kazalar”, “uygunsuz ve yetersiz ekipman kullanımına bağlı kazalar” ve “çalışma ortamı ve şartlarına bağlı kazalar” olarak tespit edilmiştir. Bu soruna çözüm getirebilecek en önemli alternatiflerden bazıları ise; “yeterli eğitim ve tecrübeye sahip daimi kadrolu personel çalıştırılması”, “çalışma koşulları, saatleri ve personel sayılarında düzenlemelerin yapılması” ve “limanlarda ihtisaslaşmaya gidilmesi” olarak tespit edilmiştir.

267

Authors: -

The article that DOI ID is 10.5505/jems.2016.78942 has an oversight about reference numbering; Şekil 2. Yakıt Pompası Çıkışındaki Basınç ve Enjektör İğnesinin Kalkma Miktarının Krank Açısına Göre Değişimi [9] The correct reference list is given below. [1] Gay R.R., Palmer, C.A. and Erbes M.R. (2004). Power Plant Performance Monitoring. R-squared Publishing. [2] Varbanets, R.A. and Karianskiy, S.A. (2012). Analyse of Marine Diesel Engine Performance. Journal of Polish CIMAC Energetic Aspects, 7(1):269-275. [3] Lamaris, V.T. and Hountalas D.T. (2010). A general purpose diagnostic technique for marine diesel engines – Application on the main propulsion and auxiliary diesel units of a marine vessel. Energy Conversion and Management, 51:740–753. [4] Hountalas, D.T., Papagiannakis, R.G., Zovanos, G., Antonopoulos, A. (2014). Comparative evaluation of various methodologies to account for the effect of load variation during cylinder pressure measurement of large scale two-stroke diesel engines. Applied Energy, 113:1027–1042. [5] Kowalski, J. (2014). An experimental study of emission and combustion characteristics of marine diesel engine with fuel pump malfunctions. Applied Thermal Engineering, 65:469-476. [6] Basurko, O.C. and Uriondo, Z. (2015). Condition-Based Maintenance for medium speed diesel engines used in vessels in operation. Applied Thermal Engineering, 80:404-412. [7] Zhang, K., Wang, X., Kong, X., Zeng, H., Lao, X. (2014). Thermal Management System Analysis of Marine Diesel Engine. Journal of Automation and Control Engineering, 2(1):75-78. [8] Cong Guan, C., Theotokatos, G. and Chen, H. (2015). Analysis of Two Stroke Marine Diesel Engine Operation Including Turbocharger Cut-Out by Using a Zero-Dimensional Model. Energies, 8:5738-5764 [9] Kegl, B., Kegl, M., Pehan, S. (2013). Green Diesel Engines. Springer-Verlag London. [10] Littlefuse Selco EngineEye (E5000). (2014). PC software User’s Manual. Version 1.0.4.6. [11] Zhao Z., Zhang F., Huang Y., Zhao C. (2014). Determination of TDC in a hydraulic free-piston engine by a novel approach. Applied Thermal Engineering, 70:524-530. [12] Pipitone E., Beccari A. (2010). Determination of TDC in internal combustion engines by a newly developed thermodynamic approach. Applied Thermal Engineering, 30:1914-1926. [13] Pipitone E., Beccari A., Beccari S. (2007). The Experimental Validation of a New Thermodynamic Method for TDC Determination. SAE Paper:2007-24-0052. [14] Miao R., Li J., Shi L., Deng K. (2013). Study of Top Dead Center Measurement and Correction Method in a Diesel Engine, Research Journal of Applied Sciences, Engineering and Technology, 6(6):1101-1105. [15] ISO 3046-1:2002 (2008). Reciprocating internal combustion engines-Performance, Part 1: Declarations of power, fuel and lubricating oil consumptions, and test methods - Additional requirements for engines for general use. The editorial board of JEMS apologizes for any inconvenience that may result from this oversight.