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Available. Open Access. Open Access
Article
Publication date: 20 July 2020

Mehmet Fatih Uslu, Süleyman Uslu and Faruk Bulut

Optimization algorithms can differ in performance for a specific problem. Hybrid approaches, using this difference, might give a higher performance in many cases. This paper…

1991

Abstract

Optimization algorithms can differ in performance for a specific problem. Hybrid approaches, using this difference, might give a higher performance in many cases. This paper presents a hybrid approach of Genetic Algorithm (GA) and Ant Colony Optimization (ACO) specifically for the Integrated Process Planning and Scheduling (IPPS) problems. GA and ACO have given different performances in different cases of IPPS problems. In some cases, GA has outperformed, and so do ACO in other cases. This hybrid method can be constructed as (I) GA to improve ACO results or (II) ACO to improve GA results. Based on the performances of the algorithm pairs on the given problem scale. This proposed hybrid GA-ACO approach (hAG) runs both GA and ACO simultaneously, and the better performing one is selected as the primary algorithm in the hybrid approach. hAG also avoids convergence by resetting parameters which cause algorithms to converge local optimum points. Moreover, the algorithm can obtain more accurate solutions with avoidance strategy. The new hybrid optimization technique (hAG) merges a GA with a local search strategy based on the interior point method. The efficiency of hAG is demonstrated by solving a constrained multi-objective mathematical test-case. The benchmarking results of the experimental studies with AIS (Artificial Immune System), GA, and ACO indicate that the proposed model has outperformed other non-hybrid algorithms in different scenarios.

Details

Applied Computing and Informatics, vol. 18 no. 1/2
Type: Research Article
ISSN: 2210-8327

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Article
Publication date: 25 February 2014

Ali Günen, Mustafa Serdar Karakaş, Bülent Kurt and Adnan Çalık

– The paper aims to clarify the effect of boriding on the corrosion behavior and mechanical properties of AISI 304 austenitic stainless steel.

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Abstract

Purpose

The paper aims to clarify the effect of boriding on the corrosion behavior and mechanical properties of AISI 304 austenitic stainless steel.

Design/methodology/approach

The commercially available steel was subjected to a boriding treatment with Ekabor III powders at temperatures of 1,223-1,273 K with boriding durations of 2-4 h. Microstructural characterization of the steel was carried out with optical microscopy, scanning electron microscopy and X-ray diffraction analyses. Static immersion corrosion tests were made using a 10 percent H2SO4 acid solution and salt spray tests were carried out in accord with the ASTM B-117 standard.

Findings

Grain boundary precipitation of carbides was observed in the transition zone beneath the boride layers. The corrosion resistance of the steel against the acid solution increased to about seven times its untreated value with the boriding treatment.

Research limitations/implications

The boride coating improved the corrosion resistance of the AISI 304 stainless steel against acidic media, but suffered from spalling in the salt spray test. Future work will focus on improving the adhesion between the coating and the substrate by changing the parameters for the boriding process.

Practical implications

Pack boriding is a simple, environmentally friendly coating process and can be recommended for use in small and medium enterprises. The boride coatings deposited have potential in further improving the wear and corrosion resistance of stainless steels.

Originality/value

The outcome of the research is of great importance for the industry using wear- and corrosion-resistant coatings.

Details

Anti-Corrosion Methods and Materials, vol. 61 no. 2
Type: Research Article
ISSN: 0003-5599

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Book part
Publication date: 3 September 2021

Kevser Çınar and Gökhan Şener

Tourism, as a leading source of income for many countries, is one of the world's fastest-growing industries. Tourism demand is strongly influenced by the economic situation of the…

Abstract

Tourism, as a leading source of income for many countries, is one of the world's fastest-growing industries. Tourism demand is strongly influenced by the economic situation of the consumer, as well as by the political, environmental, security and health conditions provided by the host country. As tourism is not one of the first steps in Maslow's hierarchy of needs, it is not part of the mandatory spending group. Holiday plans are among the first to be altered or cancelled if there is a threat to the tourist's ‘biological and physiological needs’ or ‘security needs’. Thus, the tourism sector is highly susceptible to crises. Turkey tourism movement has faced several major national and global shocks of different origins recently. This study aims to examine the impact of crucial crises and of the current COVID-19 pandemic on the tourism industry in terms of their characteristics, social conflicts, political situation and responses. To achieve this objective, the development of the tourism sector in Turkey has been analyzed taking into account the conditions of the world economies. Comparisons were made between overall figures for incoming tourists, tourism revenues and hotel occupancy rates in Turkey for the time periods before, during and after these crises, considering certain other effects. The figures are related to significant incidents, economic, political, health, social or environmental crises that have occurred at the national or global level.

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Pandemics and Travel
Type: Book
ISBN: 978-1-80071-071-9

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Book part
Publication date: 6 April 2021

Yeter Demir Uslu, Emre Yılmaz and Pakize Yiğit

In this study, it is aimed to correctly weigh the criteria for the selection of qualified manager in a healthcare facility and to make the right selection among candidates with an…

Abstract

In this study, it is aimed to correctly weigh the criteria for the selection of qualified manager in a healthcare facility and to make the right selection among candidates with an objective method. In this study, in which the health manager selection was carried out with fuzzy Analytical Hierarchy Process (AHP) and MULTIMOORA methods, 8 candidates were evaluated according to 12 personnel selection criteria. Comparative matrices of qualified health manager selection criteria were presented to the expert opinion and analyzed with the fuzzy AHP method. According to the analysis result, among the 12 criteria; The “Crisis Management Skill” criterion is in the first place with 12.5% weight; The “Social Responsibility Awareness” criterion was found to be in the last place with 3.2% weight. The MULTIMOORA method was applied by analyzing the interview scores and criterion weightings of the candidates evaluated by the jury. According to the results of MULTIMOORA, Candidate 1 first place and Candidate 6 ranked last.

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Strategic Outlook in Business and Finance Innovation: Multidimensional Policies for Emerging Economies
Type: Book
ISBN: 978-1-80043-445-5

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Book part
Publication date: 16 December 2009

Nilufer Narli

The EU harmonisation has created changes in the military's formal and informal influence in the directions of decreased formal and informal military influence in civilian…

Abstract

The EU harmonisation has created changes in the military's formal and informal influence in the directions of decreased formal and informal military influence in civilian politics. The EU reforms have created changes in the mindset of the citizens, by creating changes in the security culture of the citizens and in the civil-military related political culture. The desired level of alignment has not been reached. Therefore, the study examines the areas where further alignment is required. Moving from Rebecca L. Schiff's concordance theory, the article examines the relationship between the Turkish military, the civilian politics and the society before and after the EU harmonisation process. It examines the effects of the EU harmonisation process on the changes in the civil-military balance of power, and on the related security culture and political values. The analysis focuses on: (i) increased civilian control and consequent changes in the policy of accountability; (ii) transparency building in the defence sector; (iii) parliamentary oversight; and (iv) the change in the political culture related to the civil-military issues. It also investigates the extent the EU harmonisation has achieved in building democratic civil-military relations in order to align with the EU standards.

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Advances in Military Sociology: Essays in Honor of Charles C. Moskos
Type: Book
ISBN: 978-1-84855-893-9

Available. Content available
Book part
Publication date: 20 November 2023

Ada T. Cenkci, Megan S. Downing, Tuba Bircan and Karen Perham-Lippman

Free Access. Free Access

Abstract

Details

Overcoming Workplace Loneliness
Type: Book
ISBN: 978-1-80382-502-1

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Book part
Publication date: 9 July 2024

Ali İnanir and Hasan Önal Şeyhanlioğlu

Green destinations are places that are important for the sustainable realization of tourism. In addition to the design of these destinations, the management also emerges as an…

Abstract

Green destinations are places that are important for the sustainable realization of tourism. In addition to the design of these destinations, the management also emerges as an issue that needs to be emphasized. As a matter of fact, stakeholders and their relations with each other and other issues are an important element in the management of green destinations. In this context, in the study, issues such as management of green destinations, stakeholders, relations between stakeholders, education and green destination management in Türkiye are discussed. Finally, some suggestions have been presented within the framework of the topics discussed.

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The Role of Artificial Intelligence in Regenerative Tourism and Green Destinations
Type: Book
ISBN: 978-1-83753-746-4

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Book part
Publication date: 5 October 2020

Bulent Akkaya and Sema Üstgörül

Female leader is a major topic in the male of today that’s hardly getting attention. World today needs women in more positions of leadership. Today’s organizations need effective…

Abstract

Female leader is a major topic in the male of today that’s hardly getting attention. World today needs women in more positions of leadership. Today’s organizations need effective and agile leaders who understand the complexities of the rapidly changing global environment. This situation requires urgent attention as the world needs female as well as male characteristics to address global issues. Women represent half of the modern world’s abilities and population. They are important for economic and social prosperity for the world. Women carry a viewpoint that respects not only competitiveness but also organizational and team cooperation. Their female ideals are a functioning structure of new, cooperative and open economy. Eventually, the leadership of women will not only boost business, family and culture, but also the environment that will become more prosperous and peaceful as a result. In today’s modern world many researches are conducted on global, social and cultural forces, such as globalization, e-commerce, changing markets, the spread of technology and the need for teamwork, alliances and partnerships, show a high need for women leaders. But what is the role and leadership style of female leaders here? In this context, the purpose of this study is to discuss the leadership styles and what kind of leadership style female managers exhibit in line with the literature. The research showed that female managers have more agile leadership qualities and the authors suggested that female leaders should be brought forward for the opportunity to lead others toward a better future.

Details

Agile Business Leadership Methods for Industry 4.0
Type: Book
ISBN: 978-1-80043-381-6

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Article
Publication date: 15 March 2013

Gül Biringen Löker, Birdem Amoutzopoulos, Semin Özge Özkoç, Hayrettin Özer, Gülçin Şatir and Ayşe Bakan

The purpose of this paper is to describe methodology and practices undertaken during a pilot study on food composition of Turkish traditional foods (TTF).

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Abstract

Purpose

The purpose of this paper is to describe methodology and practices undertaken during a pilot study on food composition of Turkish traditional foods (TTF).

Design/methodology/approach

The pilot study was conducted under the European Food Information Resource Network (EuroFIR) Project for the systemic investigation of traditional foods. As a partner country of the EuroFIR, Turkey has selected five traditional foods, tarhana soup, yoğurtlu kebap (kebab with yoghurt), hamsi buğulama (anchovy stew), pastırma, and baklava. The traditional recipes of the selected foods were recorded by field studies. Nutritional composition of foods was determined by chemical analyses.

Findings

Information on the identification, sampling, sample handling, and analysis was collected for each of the selected foods. The food composition data were evaluated by using EuroFIR standards, and the recommended dietary allowances (RDA) for nutritents. Five TTF were meeting with various nutrient recommendations.

Originality/value

This pilot study on the systemic investigation of traditional foods would be an example for further traditional food studies in Turkey and would enable the generation of reliable, representative and sufficient quality data on TTF.

Details

British Food Journal, vol. 115 no. 3
Type: Research Article
ISSN: 0007-070X

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Article
Publication date: 15 June 2023

Merve Mert-Karadas, Fusun Terzioglu and Gulten Koc

The purpose of this study is to evaluate the effects of nursing students' personality traits and leadership orientations on their career adaptability.

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Abstract

Purpose

The purpose of this study is to evaluate the effects of nursing students' personality traits and leadership orientations on their career adaptability.

Design/methodology/approach

A total of 322 nursing students were enrolled in this cross-sectional study. The methods used to collect data included the semi-structured data collection form, five factors personality scale, leadership orientation scale and career adaptation-abilities scale.

Findings

The regression model created to determine the effects of personality traits and leadership orientations on the students’ career adaptability proved to be highly insightful. The students' leadership orientations have a statistically significant effect on their career adaptability score, with an explanatory coefficient of 43.1% and personality traits accounted for 18% of the career adaptability.

Originality/value

The results of this study indicated that leadership orientations and personality traits of the students exerted effects on the career adaptability of nursing students. Developing the leadership orientations of nursing students and being aware of their personality traits will contribute positively to the development of their career adaptability and strengthen the health system.

Details

Leadership in Health Services, vol. 37 no. 1
Type: Research Article
ISSN: 1751-1879

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