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1 – 10 of 11Li-San Hung and Mucahid Mustafa Bayrak
The purpose of this study was to examine the relationships between gender ideologies and the motivation to mitigate climate change among a sample (N = 663) representative of the…
Abstract
Purpose
The purpose of this study was to examine the relationships between gender ideologies and the motivation to mitigate climate change among a sample (N = 663) representative of the Taiwanese population, taking into account the different aspects of gender ideology measures and the multidimensionality of gender ideologies.
Design/methodology/approach
A landline-based telephone survey in Taiwan was used to collect research data. Pearson correlations were used to determine the associations between gender ideologies and motivation to mitigate climate change, and multiple regression analysis was performed to determine whether gender ideology measures were predictors for motivation to mitigate climate change.
Findings
The results suggested that the relationships between gender ideologies and mitigation motivation are complex, and that both traditional and egalitarian views of gender ideologies, measured using different scales, are positively associated with motivation. The dynamics of relationships among subgroups divided by gender and marital status need to be considered, as the relationships between gender ideologies and motivation are salient for unmarried individuals as well as married females.
Research limitations/implications
The findings support the premise that gender ideologies play an essential and complex role in individual climate change mitigation behaviors.
Originality/value
This is the first study that systematically examined the relationships between gender ideologies and motivation to mitigate climate change.
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Necmettin Sahin, Erkan Kaplan, Mustafa Bayrak, I. Faruk Yaka and Afsin Gungor
Progressive decline in world energy resources, rising costs, on behalf of the various studies has led businesses to use energy resources efficiently. This work is at the top of…
Abstract
Progressive decline in world energy resources, rising costs, on behalf of the various studies has led businesses to use energy resources efficiently. This work is at the top of the exergy analysis. In this study, using data from Eregli Sugar Factory 2010–2011 campaign year for sugar production processes, the first law of thermodynamics (energy analysis) and analysis of these condlaw (exergy analysis) were conducted. Depending on there sults of this analysis of the sugar production process yields the first and these cond law is calculated. Obtained in the light of the secalculation stoin crease theen ergy efficiency of the plant, was tetoprovide energy to gainth embackand give direction to the development of new technologies Eregli Sugar Factory recommendations were made.
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Alper Kerem and Abdusselam Yazgan
The purpose of this study is to monitor the surface cooling of the photovoltaic (PV) panel and the effect of the dust accumulated on the panel surface on the electrical efficiency…
Abstract
Purpose
The purpose of this study is to monitor the surface cooling of the photovoltaic (PV) panel and the effect of the dust accumulated on the panel surface on the electrical efficiency remotely and instantaneously.
Design/methodology/approach
An autonomous system has been designed that can measure and record the PV surface temperature, the amount of dust on the surface, current, voltage and power values at certain intervals. It can also perform surface cooling and cleaning with water cycle when the temperature and dust amount reach certain threshold values and transmit these values to the user via global system for mobile communications module, Bluetooth module and graphically with a touchscreen liquid crystal display panel. Thus, it is aimed to benefit from PV at the maximum level, and it was installed in Kahramanmaras Sütçü Imam University Faculty of Engineering and Architecture.
Findings
An increase in power was observed for PV surface cooling and surface dust removal by 3.78% and 45.99%, respectively.
Originality/value
This system is of vital importance in terms of time and energy-saving, especially for solar plants far from the city center, which are difficult to access because of climatic conditions. In other hand for future studies, it is foreseen that more efficiency gains can be achieved by using artificial intelligence and image processing techniques.
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Vasantharaj Subramanian and Indragandhi Vairavasundaram
The purpose of this study is to eliminate voltage harmonics and instantly measure the positive sequence fundamental voltage during unbalanced grid conditions, the dual…
Abstract
Purpose
The purpose of this study is to eliminate voltage harmonics and instantly measure the positive sequence fundamental voltage during unbalanced grid conditions, the dual second-order generalized integrator-phase locked loop used in series hybrid filter structures is often used in grid synchronisation in three-phase networks. The preferred series active hybrid power filter simultaneously compensates for voltage balancing and current harmonics generated by non-linear loads.
Design/methodology/approach
This paper examines the use of renewable energy–based microgrid (MG) to support linear and non-linear loads. It is capable of synchronising with both the utility and the diesel generator unit. Power is transferred from the grid throughout a stable grid situation with minimum renewable energy generation and maximum load demand. It synchronises with diesel generator set to supply the load and form an AC MG during outages and minimum renewable power generation. In islanded and grid-connected mode, the voltage and power quality issues of the MG are controlled by static synchronous compensator and series hybrid filter.
Findings
Because of the presence of non-linear loads, reactive loads in the distribution system and the injection of wind power into the grid integrated system result power quality issues like current harmonics, voltage fluctuations, reactive power demand, etc.
Originality/value
The voltage at the load (linear and non-linear) is regulated, and the power factor and total harmonic distortions were improved with the help of the series hybrid filter.
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The aim of this qualitative study was to determine what makes school principals successful. The study obtained data through interviews, both face-to-face and via e-mail…
Abstract
The aim of this qualitative study was to determine what makes school principals successful. The study obtained data through interviews, both face-to-face and via e-mail correspondence. Content analysis provides the framework for analyzing the data. The data revealed that successful school principals have three different, but interrelated competencies, which are personal, administrative, and leadership competencies. The study also indicates that those successful principals gave priority to human relations, they see the school as their home where principals created a warm atmosphere, communicated effectively with all stakeholders, committed themselves to their schools, managed schools in a democratic way, solved problems on time and effectively.
Seval Kardeş Selimoğlu and Mehtap Altunel
Along with accounting scandals in the past, academics, researchers, and legislators have focused on fraud. The purpose of this study is to examine postgraduate and doctoral…
Abstract
Along with accounting scandals in the past, academics, researchers, and legislators have focused on fraud. The purpose of this study is to examine postgraduate and doctoral studies, articles, and books about forensic accounting and fraud audit published between the years 2008 and 2018 in Turkey. For this purpose, a total of 96 studies have been examined and 35 of these are master’s theses, 10 of them are PhD theses, 45 of them are articles, and six of them are books. These studies were presented in tables as classified. The studies examined in our research are summarized as year they were published, the author, and the scope of the topic and in terms of results. The conclusions of this study can be summarized as follows: (a) the majority of thesis published about forensic accounting and fraud audit are in 2011 and following years. In addition, most of the theses are focused on forensic accounting review rather than fraud audit. (b) Results in the articles reviewed are in the same direction with theses. (c) There are very few books about fraud audit and forensic accounting. One of them is related to fraud audit, while the rest of them are related to forensic accounting and forensic accounting profession. We suggest extending the scope of the study and making to other countries.
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Raghad Ahmed Alaloosi, Onur Çomakli, Mustafa Yazici and Ziad A. Taha
This paper aims to investigate the influence of scan speed on the corrosion and tribocorrosion features of the CoCrMoW samples fabricated via the selective laser melting (SLM…
Abstract
Purpose
This paper aims to investigate the influence of scan speed on the corrosion and tribocorrosion features of the CoCrMoW samples fabricated via the selective laser melting (SLM) process.
Design/methodology/approach
CoCrMoW samples were produced by SLM at different scan speeds. Produced samples were made via structural surveys (X-ray diffraction examinations and scanning electron microscopic analyses), hardness measurements and electrochemical and tribocorrosion experiments.
Findings
Outcomes displayed that the corrosion and tribocorrosion properties of CoCrMoW alloy were significantly influenced by scanning speeds. Also, these properties of the alloy increased with increasing scanning speeds. CoCrMoW samples produced at a laser scan speed of 1,000 mm/s showed the best resistance to corrosion and tribocorrosion. This could be related to the high hardness and low grain structure of the fabricated samples.
Originality/value
This paper may be a practical reference and offers insight into the effect of scanning speeds on the increase of hardness, tribological and corrosion performance of CoCrMoW alloys. This study can help in the further advancement of cobalt-chromium alloy in situ produced by SLM for both electrochemical and tribocorrosion behavior for biomedical applications.
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Abdullah H. Alnasser, Mohammad A. Hassanain, Mustafa A. Alnasser and Ali H. Alnasser
This study aims to identify and assess the factors challenging the integration of artificial intelligence (AI) technologies in healthcare workplaces.
Abstract
Purpose
This study aims to identify and assess the factors challenging the integration of artificial intelligence (AI) technologies in healthcare workplaces.
Design/methodology/approach
The study utilized a mixed approach, that starts with a literature review, then developing and testing a questionnaire survey of the factors challenging the integration of AI technologies in healthcare workplaces. In total, 46 factors were identified and classified under 6 groups. These factors were assessed by four different stakeholder categories: facilities managers, medical staff, operational staff and patients/visitors. The evaluations gathered were examined to determine the relative importance index (RII), importance rating (IR) and ranking of each factor.
Findings
All 46 factors were assessed as “Very Important” through the overall assessment by the four stakeholder categories. The results indicated that the most important factors, across all groups, are “AI ability to learn from patient data”, “insufficient data privacy measures for patients”, “availability of technical support and maintenance services”, “physicians’ acceptance of AI in healthcare”, “reliability and uptime of AI systems” and “ability to reduce medical errors”.
Practical implications
Determining the importance ratings of the factors can lead to better resource allocation and the development of strategies to facilitate the adoption and implementation of these technologies, thus promoting the development of innovative solutions to improve healthcare practices.
Originality/value
This study contributes to the body of knowledge in the domain of technology adoption and implementation in the medical workplace, through improving stakeholders’ comprehension of the factors challenging the integration of AI technologies.
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Hamdi Ercan, Cüneyt Öztürk and Mustafa Akın
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…
Abstract
Purpose
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.
Design/methodology/approach
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.
Findings
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.
Practical implications
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.
Social implications
The positive contributions in terms of weight, power consumption and fuel consumption in aircraft will be direct environmental and economic contributions.
Originality/value
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.
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Ronald Burke, Mustafa Koyuncu and Lisa Fiksenbaum
The purpose of this paper is to investigate gender differences in work experiences, satisfactions and psychological health among physicians in Turkey.
Abstract
Purpose
The purpose of this paper is to investigate gender differences in work experiences, satisfactions and psychological health among physicians in Turkey.
Design/methodology/approach
Data were collected from 237 male and 194 female physicians using an anonymously completed questionnaire. Measures included personal demographic and work situation characteristics, stable individual difference factors (e.g. workaholism components, Type A behavior, optimism), job behaviors (e.g. perfectionism, hours worked), work and extra‐work satisfactions, indicators of work engagement, and psychological wellbeing.
Findings
There were few differences in personal demographic and work situation characteristics. Female physicians had less professional tenure and worked fewer hours and extra‐hours per week. Female and male physicians were similar on stable individual difference factors, job behaviors, work outcomes, extra‐work satisfactions and psychological wellbeing, with a few exceptions. Female physicians reported more work‐family conflict and more psychosomatic symptoms and tended to be absent more.
Research limitations/implications
Data were collected using self‐report questionnaires raising the possibility of response set tendencies. It is also not clear to what extent these findings generalize to male and female physicians in other countries.
Originality/value
Despite previous studies showing considerable gender differences in the work experiences and wellbeing of female and male physicians in other countries, female and male physicians in Turkey reported generally similar job behaviors, satisfactions, quality of life and emotional wellbeing. This suggests that an emphasis on gender similarities rather than gender differences might be warranted.
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