138 research outputs found

    LMI - BASED H2 AND H STATE - FEEDBACK CONTROLLER DESIGN FOR FIN STABILIZER OF NONLINEAR ROLL MOTION OF A FISHING BOAT

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    This paper presents the analyses of nonlinear roll responses of a fishing boat in waves. In addition to roll damping nonlinearity, the nonlinear roll restoring which has seventh order equation has been taken into consideration to accurate control application. To overcome nonlinearity and the effects of uncertainties, LMI (Linear Matrix Inequality) - based H2 and H State - Feedback Control are applied for the fin roll stabilizer of a fishing boat. The fin characteristics are calculated by Star CCM+ package software. Finally, utilising the studies presented to illustrate the feasibility and efficiency of the H2 and H control methods, the results of the simulations are demonstrated the performance of fin roll stabilizer

    Cross-Cultural Transference in Translation: Translator Preferences in Translating Cultural Elements from Turkish to English in Madonna in a Fur Coat By Sabahattin Ali

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    This study aims at examining the translation process of culture specific items (CSI) in Sabahattin Ali’s Kürk Mantolu Madonna (1943) and English translation entitled Madonna in a Fur Coat (2016) in a descriptive manner. To achieve this primary aim, the researchers have classified the cultural elements in the source text according to Aixelá’s (1996) ‘Categorization of Culture-specific Items’ and analyzed the samples according to the taxonomies proposed by Franco Aixelá's (1996) for the translation of culture-specific items. In order to set a general framework, the analysis has focused upon the answers of the questions that; which procedures and strategies are used by the translators in the process of transferring the culture-specific items from the source language into the target language; which translation procedures of Javier Aixelá’s are used more or less frequently by the translators; and which one of the translation strategies suggested by Venuti is generally referred to by these strategies; either domestication or foreignization. Besides, to what extent the otherness of Turkish culture has been recreated in the English translation of Kürk Mantolu Madonna according to the dominance of either of these strategies has also been clarified. Consequently, the general approach of the translators who have transferred the novella into the target language will be detected by the researchers. Likewise, a number of translation strategies necessary to deal with the translation of CSIs have also been illustrated; and also some categorization types of those CSIs to be employed during the classification process of cultural elements in the literary texts have been presented

    A NOVEL RISK EVALUATION APPROACH FOR FREQUENTLY ENCOUNTERED RISKS IN SHIP ENGINE ROOMS

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    The purpose of this study is to evaluate risks which are frequently encountered in the engine room on-board. In this context, twenty common risks are assessed using the neutrosophic analytic hierarchy process (N-AHP) and trapezoidal fuzzy technique for order preference by similarity to ideal solution (TrF-TOPSIS). In maritime risk evaluation, since it is frequently required the linguistic assessment of decision-makers to achieve a robust risk assessment tool, neutrosophic sets and fuzzy sets are used together in this study. Neutrosophic sets represent real-world problems effectively by considering all aspects of decision-making situations, (i.e. truthiness, indeterminacy, and falsity). Therefore, AHP is integrated with neutrosophic sets to assign weights of risk parameters initially. Then, the encountered risks are prioritized by TrF-TOPSIS. Finally, preventative actions for the risks have been discussed. In conclusion of the study, it is shown that skin exposure to the fuels/oils, exposure to chemicals and exposure to high pressure and temperature liquids are the most important risks through the engine room on-board. This study both emphasizes the importance of preventing damage to crew in the risk assessment of ship engine rooms and aims to increase the level of safety control and minimize the potential environmental impacts of a ship\u27s damage

    MULTICULTURAL EDUCATION AND ITS IMPACT ON LANGUAGE DEVELOPMENT: THE CASE OF MILITARY CADETS AT TMA

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    The purpose of the study was three-fold: First, to determine the perspectives of the international and Turkish military cadets at Turkish Military Academy (TMA) towards multicultural learning environment and cultural diversity. Second, to analyze to what extent the multicultural learning environment affects the language development of both international and Turkish cadets. Third, to identify the observations and suggestions of language instructors about the best practices to be applied in multicultural learning setting. A questionnaire and two proficiency tests were applied on 80 cadets for quantitative data. Qualitative data was gathered from 13 language instructors studying at TMA. It was found that the perspectives of the cadets towards multicultural learning setting were positive. However, the international cadets’ language proficiency developed more than the Turkish cadets. Analysis of the interviews with the language instructors provided important insights into the issue.Key Words :  cultural diversity, international student, multicultural learning, TMA

    A HIERARCHICAL STRUCTURE FOR SHIP DIESEL ENGINE TROUBLE-SHOOTING PROBLEM USING FUZZY AHP AND FUZZY VIKOR HYBRID METHODS

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    Although considerable technical preventive measures have been taken in marine diesel engine and auxiliary systems, it is possible to observe unexpected faults in the course of the operating conditions. These faults can become so severe that they can cause losses which can be irreversible. This study aims to present Fuzzy Analytic Hierarchy Process (AHP) and VIKOR (Vise Kriterijumska Optimizacija I Kompromisno Resenje) methods applied for the expert failure detection of marine diesel engine and auxiliary systems. In this study, the failures of marine diesel engine have been revealed and prioritized. Accordingly, the section of the machine from which the failures primarily arise has been determined. At the same time, the importance of the effective use of time in determining and responding to the failures has been indicated. By means of the evaluation of decision-making groups, the system most severely affected by failures has been decided

    Optimal replacement policies with minimal repair and random cost

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    Ankara : Department of Industrial Engineering and the Institute of Engineering and Sciences of Bilkent Univ., 1993.Thesis (Master's) -- Bilkent University, 1993.Includes bibliographical references leaves 46-48When a system fails usually two actions take place; either replacement of system with a brand new one or repairing it if possible. In this study, it is assumed that system under consideration is repairable and is minimally repaired at failures with a random repair cost. Two replacement models are provided under this set-up. First model assumes that the system is replaced when the total cost of minimal repairs exceeds a total cost limit. Second model incorporates the number of failures into replacement decision. Here the concept of critical failure is introduced and used by means of two sub-models. In the first sub-model it is assumed that the system is replaced at the kth critical failure or at cige T. And the second sub-model assumes that the system is replaced at the first critical failure occurs after age T. The first model is just constructed but cannot be solved due to complexity of the resultant function. But, solution methods of the sub-models of second model are provided.Demirel, Hakan LeventM.S

    ECONOMIC AND POLITICAL INTERACTION OF 2001 CRISIS: IMPLICATIONS FOR 2008 RECESSION?

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    As it is known, Turkey experienced a severe economic crisis in the year 2001. This economic crisis has been costly for the Turkish economy and has typically been accompanied by a collapse of output and employment as well as striking declines in real wages. Not only economic insufficiencies and bottlenecks but also political uncertainty had sizeable impacts in the formation of economic crisis. The 2001 Crisis interestingly caused a set of catastrophe and it is worthy to analyze its emergence, mal-administration, and wide damage on the Turkish economy and to show the structure that transformed political climate in the post-crisis period. The interaction of political and economic dimensions of 2001 crisis also accompanies strong implications for 2008 recession and this paper finally discusses lessons of 2001 crisis for 2008 recession through the lenses of interplay between politics and economics

    Evaluation of Critical Operational Faults of Marine Diesel Generator Engines by Using DEMATEL Method

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    All the electrical demand of ship are provided by diesel generators (DG). Failure of generators due to breakdown can lead to the blackout of the ship which may suddenly cause serious damage to ship’s main and/or auxiliary engines, human health and marine environment or any structure at ship’s route. Thus, the planned maintenance and repairs of the generators must be done properly without any deficiency or delay. And even then, since the generators run continuously failures may often occur. In this context, this paper provides a DEMATEL (Decision Making Trial and Evaluation Laboratory) method to evaluate the critical operational faults in marine DGs. The DEMATEL method enables to identify and analyze the important faults of marine DG within the respect to the cause-effect relationship diagram. The obtained results of the research will contribute to ship safety at sea and prevention of hazardous machinery effects

    Seismic stratigraphy of the north-western Sea of Marmara shelf along the North Anatolian Fault system

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    The Ganos Fault, a part of the Northern strand of the North Anatolian Fault system, is an active- strike slip fault and divides the narrow NW shelf of the Sea of Marmara into two parts near the town of Gaziköy. This paper presents recently collected shallow high-resolution seismic data to discriminate the sedimentary successions, each characterized by distinctive stratigraphic patterns on both sides of the Ganos Fault. Two main units, namely U1 and U2, and three para-sequences (U1a, U1b and U1c) were identified, depending on their internal reflection patterns, accommodation depths as well as the presence of conformity and the unconformity surfaces. The thickness of Unit U1 reaches its maximum at the northern side of the Ganos Fault; it is much thinner to the south. The para-sequences of U1b and U1c have “progradation” and “aggradation to progradation” depositional characters, respectively. This probably implies fluvial deposition controlled by sea- level fluctuations. Unit U1b can only be observed at the northern side of the Ganos Fault, while Unit U1c at the southern side. Units U1a and U1b were deposited during the transgressive system tract, while Unit U1c was deposited during a sea-level fall and/or a lowstand phase marked by an erosional surface. The marine terraces in the study area are shallower than those along the northern shelf of the Sea of Marmara, possibly due to successive tectonic displacements along the Ganos Fault, which also controls the distribution and thickness of the parasequences identified in this study

    Mushroom poisoning: retrospective analysis of 294 cases

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    OBJECTIVE: The objective of this study was to present special clinical and laboratory features of 294 cases of mushroom poisoning. MATERIALS AND METHODS: In this retrospective study, 294 patients admitted to the Pediatric and Adult Emergency, Internal Medicine and ICU Departments of Cumhuriyet University Hospital were investigated. RESULTS: Of 294 patients between the ages of 3 and 72 (28.97 ± 19.32), 173 were female, 121 were male and 90 were under the age of 16 years. One hundred seventy-three patients (58.8%) had consumed the mushrooms in the early summer. The onset of mushroom toxicity symptoms was divided into early (within 6 h after ingestion) and delayed (6 h to 20 d). Two hundred eighty-eight patients (97.9%) and six (2.1%) patients had early and delayed toxicity symptoms, respectively. The onset of symptoms was within two hours for 101 patients (34.3%). The most common first-noticed symptoms were in the gastrointestinal system. The patients were discharged within one to ten days. Three patients suffering from poisoning caused by wild mushrooms died from fulminant hepatic failure. CONCLUSION: Education of the public about the consumption of mushrooms and education of health personnel working in health centers regarding early treatment and transfer to hospitals with appropriate facilities are important for decreasing the mortality
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