Saravanan R., Vijayshankar S., Sathyaseelan and Suresh K.
This paper aims to propose Hidden Converter (H-Converter) combined with dual port 3Ø inverter for energy storage application to produce wide range of voltage. Some of the…
Abstract
Purpose
This paper aims to propose Hidden Converter (H-Converter) combined with dual port 3Ø inverter for energy storage application to produce wide range of voltage. Some of the application required wide range of voltages, but problem from E-chopper is either boost or buck mode of operations, both modes are not possible. To overcome this drawback, H-Converter is combined with dual port 3Ø inverter controlled by carrier-based pulse width modulation (CB-PWM) technique is added with zero sequence injection.
Design/methodology/approach
Hidden converter is a bidirectional DC-DC chopper used to convert fixed DC to variable DC and vice versa in both buck and boost modes of operations. Dual port inverter is combined with hidden DC-DC converter can produce wide range of voltages.
Findings
The bidirectional DC-AC converter requires less power for processing and consumes less power losses by using modest carrier built- pulse width modulation scheme through proposed zero structure addition.
Originality/value
By using this proposed strategy H-Converter can produce wide range of voltage in both the sides and mostly power is processed in the 3Ø inverter with a one stage conversion with less power loss. As a result, with one stage power conversion has more efficiency because of less power loss. This proposed converter has designed by analysis, and the real time result is tested in an experiment.
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Rania Abdel Gwad Eloriby and Hamdy Mohamed Mohamed
This study aims to assess the efficacy of nano-alumina (nano-Al2O3) in improving the performance of epoxy adhesives used to assemble archaeological glass. The conservators face a…
Abstract
Purpose
This study aims to assess the efficacy of nano-alumina (nano-Al2O3) in improving the performance of epoxy adhesives used to assemble archaeological glass. The conservators face a significant problem in assembling this type of artifact. Therefore, the assembling process is considered one of the important stages that must be taken care of to preserve these artifacts from damage and loss.
Design/methodology/approach
To evaluate the stability of adhesives, the samples were subjected to artificial aging under varying environmental conditions. Some investigative techniques and mechanical testing were used in this study to evaluate the selected materials. It includes a transmission electron microscope, X-ray diffraction, visual assessment, digital microscope, scanning electron microscopy (SEM), color change and tensile strength test.
Findings
The visual evaluation and the digital microscope results showed that the epoxy/nano-Al2O3 greatly resisted artificial aging. Although slight yellowing was present, it did not significantly affect the general appearance of the samples. On the other hand, the pure epoxy sample showed cracks of different sizes on its surface due to aging, as evidenced by SEM examination. Furthermore, epoxy/nano-Al2O3 has a better tensile strength (11.27 MPa) and slight color change (ΔE = 2.06).
Originality/value
The main objective of the experimental study was to identify appropriate adhesive materials that possess key properties such as non-yellowing and improved tensile strength by conducting various tests and evaluations. Ultimately, the goal was to identify materials that could serve as effective adhesives for assembling the archaeological glass.
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A few months from the time of this survey, the nearly completed inpatient psychiatric facility within the Aminu Kano Teaching Hospital's complex would be ready for admissions…
Abstract
A few months from the time of this survey, the nearly completed inpatient psychiatric facility within the Aminu Kano Teaching Hospital's complex would be ready for admissions. Understanding the health workers' level of experience of mental illness and their likely behavioural responses towards people with psychiatric illness, therefore, should be a good baseline to understanding their likely reactions towards admitting such patients within a general hospital setting.
The study, which used a pre-tested and adapted attribution questionnaire, was pro -spective and cross-sectional. Randomly selected health workers in Aminu Kano Teaching Hospital had their level of familiarity and attributions towards psychiatric patients assessed.
The respondents showed a high level of experience with mental illness, with more than 3 in 5 of them having watched movies on mental illness before. More than half of them held positive (favorable) attributions towards persons with mental illness on nine of the ten assessed attribution factors. Almost all held negative (unfavourable) opinion towards intimate relationships with such persons. Attribution factors, “Responsibility, “Anger”, “Dangerousness”, “Fear” and “Segregation” were significantly related to the respondents' level of education (P<0.05). Marital status of the respondents related significantly to “Pity” and “Avoidance” factors (P<0.05). Having watched movies on mental illness significantly related to “Responsibility” and “Fear” factors (P<0.05).
Programs designed to improve the health workers mental health literacy, and increased positive professional contacts with mentally ill persons on treatment, would further enhance their perceived positive attributions towards them.
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Prachi Bhavesh Sanghvi and Seema Mehrotra
The purpose of this review was to examine Indian research on help-seeking for mental health problems in adults.
Abstract
Purpose
The purpose of this review was to examine Indian research on help-seeking for mental health problems in adults.
Design/methodology/approach
Original Indian research studies on help-seeking for mental health, published from the year 2001−2019 were searched on PubMed, EBSCO, ProQuest and OVID using a set of relevant keywords. After applying exclusion criteria, 52 relevant research studies were identified.
Findings
The reviewed studies spanned a variety of themes such as barriers and facilitators to help-seeking, sources of help-seeking, causal attributions as well as other correlates of help-seeking, process of help-seeking and interventions to increase help-seeking. The majority of these studies were carried out in general community samples or treatment-seeking samples. Very few studies incorporated non-treatment seeking distressed samples. There is a severe dearth of studies on interventions to improve help-seeking. Studies indicate multiple barriers to seeking professional help and highlight that mere knowledge about illness and availability of professional services may be insufficient to minimize delays in professional help-seeking.
Originality/value
Help-seeking in the Indian context is often a family-based decision-making process. Multi-pronged help-seeking interventions that include components aimed at reducing barriers experienced by non-treatment seeking distressed persons and empowering informal support providers with knowledge and skills for encouraging professional help-seeking in their significant others may be useful.
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Kuljit Heer, John Rose, Michael Larkin and Nidhi Singhal
India has one of the more progressive disability frameworks in the developing world which tends to adopt western philosophies and principles (e.g. parent participation and…
Abstract
Purpose
India has one of the more progressive disability frameworks in the developing world which tends to adopt western philosophies and principles (e.g. parent participation and advocacy) which to some degree mirrors the type of service delivery in the UK. The purpose of this paper is to adopt a cross-cultural perspective to explore caregiving amongst parents caring for a child with intellectual/developmental disabilities in India.
Design/methodology/approach
Three focus groups were used to interview parents at Action for Autism (AFA) located in Delhi, India. The focus groups explored how disability is encountered within an Indian context.
Findings
Two main themes were identified in the parents narratives which were “making the decision to get help” and “seeing disabilities in from a new perspective”. Family members played an important role in the decision to get help and acted as a platform for mothers to explore their own concerns. Seeing disability from a new perspective was a four stage process which included initially accepting the diagnosis and their child; regaining control through parenting skills training; witnessing positive changes in their children and themselves and reaping personal benefits as a result of their involvement with AFA.
Research limitations/implications
The research is very small scale and focused on parents in a specific organisation, as a consequence the results cannot be generalised.
Originality/value
The discourses of these individuals do provide a useful insight into the provision of services to children in India and provide a starting point for cross-cultural understanding of parenting children with disabilities.
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Hüsamettin Erdemci and Hasan Karal
Learning analytics enable learning to be reorganized through collecting, analyzing and reporting the stored data in online learning environment. One of the important agents of…
Abstract
Purpose
Learning analytics enable learning to be reorganized through collecting, analyzing and reporting the stored data in online learning environment. One of the important agents of education process is the instructors. How the use of learning analytics within education process is evaluated by the instructors is important. The purpose of this study is to determine the experiences of instructors in relation to the use of learning analytics.
Design/methodology/approach
In this study, data were collected from instructors through interviews to determine the reflections of learning analytics on the education process. While qualitative study method was adopted, phenomenological design was used.
Findings
As a result of analysis of findings, it was concluded that the use of learning analytics in the education process was beneficial. It was established that learning analytics were helpful in the self-assessment of instructors' performances, making early intervention to risky students and creating a lesson plan.
Research limitations/implications
This study was carried out in a foreign language course and with five academicians during one semester.
Practical implications
This study aims to reveal the experiences of the instructors on the use of learning analytics and present scientific findings on a subject on which a limited number of studies have been conducted. With the start of learning analytics' use in the educational process, some concerns have been raised. This study tries to respond to the various concerns of instructors who intend to use learning analytics in the process.
Originality/value
The use of learning analytics is gradually increasing. In the studies conducted, it is seen that the studies have focused on the effect of learning analytics on the learning outputs of students. It is important to determine how instructors, who are the other important elements of the process, make use of learning analytics and how their experiences regarding the use of learning analytics are. The focal point of this study is to reveal the impact of learning analytics on the education process from the perspective of instructors.