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This paper aims to assess the impact of electrifying the environmental control system (ECS) and ice protection system (IPS), the primary pneumatic system consumers in a conventional commercial transport aircraft, on aircraft weight, range, and fuel consumption.

The case study was carried out on Airbus A321-200 aircraft. Design, modelling and analysis processes were carried out on Pacelab SysArc software. Conventional and electrical ECS and IPS architectures were modelled and analysed considering different temperature profiles.

The simulation results have shown that the aircraft model with ±270 VDC ECS and IPS architecture is lighter, has a more extended range and has less relative fuel consumption. In addition, the simulation results showed that the maximum range and relative fuel economy of all three aircraft models increased slightly as the temperature increased.

Considering the findings in this paper, it is seen that the electrification of the conventional pneumatic system in aircraft has positive contributions in terms of weight, power consumption and fuel consumption.

The positive contributions in terms of weight, power consumption and fuel consumption in aircraft will be direct environmental and economic contributions.

Apart from the conventional ECS and IPS of the aircraft, two electrical architectures, 230 VAC and ±270 VDC, were modelled and analysed. To see the effects of the three models created in different temperature profiles, analyses were done for cold day, ISA standard day and hot day temperature profiles.

In more than 100 years of aviation, significant progress has been made in flight control systems. The aircrafts that have entered service for the past ten years tend towards power-by-wire flight control with electrical actuators. The purpose of this study is to analyse the effects of electrical actuation on power consumption, weight and fuel consumption on a commercial transport aircraft.

The Airbus A321-200 aircraft was chosen as a case study for analysing the effects of electrical actuation on the flight control actuation system (FCAS) architecture, and Pacelab SysArc software was used for design, modelling and analysis. As alternatives to the existing system, hybrid and all-electric models are built to a set of design guidelines with certain limitations.

Compared to the existing FCAS architecture model, 80 kg weight savings in the hybrid FCAS architecture model and 171 kg weight savings in the all-electric FCAS architecture model were observed. In terms of fuel consumption, it has been observed that there is 0.25% fuel savings in the hybrid FCAS architecture model, and 0.48% fuel savings in the all-electric FCAS architecture model compared to the existing FCAS architecture model at 3200 NM.

In line with the data obtained from this study, it is predicted that electrical actuation is more preferable in aircraft, considering its positive effects on weight and fuel consumption.

In this study, three different models were created: the existing FCAS architecture of a commercial transport aircraft, the hybrid FCAS architecture and the all-electric FCAS architecture. Hybrid and all-electric models are built according to a set of design guidelines, with certain limitations. Then, similar flight missions consisting of the same flight conditions are defined to analyse the effects of power consumption, weight, and fuel consumption comparatively.

This study aims to investigate whether changes in consumer interest rate, exchange rate and housing supply have permanent effects on housing inflation in Turkey.

For this purpose, data from 2010M01 to 2020M06 and changes in consumer interest rate, exchange rate, housing supply and housing inflation were used. Relationships between variables are analyzed first by the Granger causality tests and then the conditional frequency domain causality tests. The conditional frequency domain causality test specifically reveals the permanent causality between variables, whether there is a permanent effect.

According to the Granger causality test results, there are causality relationships from changes in the consumer interest rate and exchange rate to housing inflation. However, there is no causality relationship between housing supply and housing inflation. According to the conditional frequency domain causality test results, there is causality for the permanent and mid-term from changes in the consumer interest rate to housing inflation and causality for the mid-term and temporary from changes in the exchange rate to housing inflation. Additionally, it was found that there are causality relationships between changes in the consumer interest rate and changes in the exchange rate.

The first limit of the study is that only 2010M01-2020M06 months can be considered. Because the date that variables started common is 2010M01. Besides, there is a limit in the study in variables used. Many variables, both micro and macro, can be added to affect housing inflation.

Housing inflation is a remarkable issue in Turkey. There is an increase in the number of studies on the subject in recent years. For this reason, the study is trying to contribute by approaching the subject from a different angle. The most important contribution of the study is that it has not been investigated whether the determinants of housing inflation have permanent or temporary effects, which were not done in previous studies. In addition, the method used reveals how many months the effects of changes in exchange rates, consumer interest rates and housing supply on housing inflation last. Based on the findings obtained from the methods, important economic and political implications have been put forward in depth.

Following the military coup that toppled the government in September 1980, Turkish prisons, like the rest of the country, came under military control. Abhorrent levels of violence inflicted under military discipline became the source of horror stories. However, by early 1990s, official authorities had almost completely lost control of prisons to political prisoner organizations. This chapter analyzes how such a drastic change took place within a decade. Focusing on the ongoing struggles between political prisoner organizations and official actors over control of daily life, I argue that the resistance strategies developed by the political prisoners against the military disciplinary project in 1980s became the source of a prisoner-imposed disciplinary project in 1990s.

The aim of the study is to contribute to the body of knowledge with a different and richer approach, by evaluating the competitiveness of the Cappadocia Region, which has a culture-oriented single or limited product variety, with a comparative and holistic approach from the perspective of visitors and stakeholders.

This research, designed on the basis of the Cappadocia Region to make original and rich contributions to the literature on destination competitiveness, has the characteristics of a field study based on collecting and analyzing raw data through scales. For this purpose, research was conducted with 401 visitors and 277 tourism stakeholders. Data was analyzed using t-tests to compare two groups and the two-way analysis of variance (ANOVA) to compare more than two groups. Cronbach's alpha analysis, nomological validity and a pilot test were conducted for validity and reliability. In addition, descriptive statistics and normality test were used in addition to the exploratory factor analyses.

Because of the research, it was seen that the competitiveness perceptions of the participants in the region differed and that the region has many strengths such as natural beauties, accommodation facilities and a positive image. However, it was determined that the competitiveness perceptions of visitors who have more touristic experiences in the region have increased in parallel with their touristic experiences. It was established that the competitiveness perceptions of the stakeholders who have comprehensive knowledge of the managerial problems and the destination competitiveness components of the region are generally lower than the visitors.

This study provides some practical implications for touristic destinations based on the research area. In order for destinations to survive in a fierce competitive environment and strengthen their competitive position, it is very important to analyze and evaluate consumers' needs and requests correctly, reveal existing differences, and use resources effectively. In addition to strengthening the image of the destination and adopting a sustainable and innovative approach, the integrated tour programs that offer touristic activities in nearby cities can be diversified with nature and adventure activities.

It is seen that studies that have been conducted with a comparative and holistic approach with data obtained from both visitors and stakeholders are quite limited. In addition, most of these studies have been conducted on destinations that are widely preferred such as mass tourism but which are less competitive than alternative tourism examples. Therefore, this study has a broad perspective and strong implications for destination competitiveness.