This report discusses the physical, electrical, mechanical and thermal characteristics of polyimide conductive, resistive, and dielectric thick film compositions made for…
Abstract
This report discusses the physical, electrical, mechanical and thermal characteristics of polyimide conductive, resistive, and dielectric thick film compositions made for high‐temperature curing and coating on non‐flexible substrates (alumina). The effects of curing times and print direction on sheet resistivity are presented for conductive patterns. The rates of silver migration of silver loaded resins are examined under 100% relative humidity at 25°C and various gap distances. The effect of current limiting resistors on silver migration is also examined. The electrical characteristics of polyimide thick film (PTF) resistors such as temperature coefficient of resistance and drifts are examined. The relationship of aspect ratio versus mean resistance and sheet resistance, as well as distribution diagrams are presented. The printability and definition of conductor patterns relative to their thickness, separation and the direction of the prints are examined, while the electrical characteristics of crossovers such as voltage breakdown are also investigated.
Marine Pepanyan, Sohyun Meacham and Stephanie Logan
The purpose of this study is to focus on the difference between perceptions of single and married international students. Four aspects are discussed to explain this issue: comfort…
Abstract
Purpose
The purpose of this study is to focus on the difference between perceptions of single and married international students. Four aspects are discussed to explain this issue: comfort level of international students in a host environment, their cultural representation, language competence/barrier and major challenges related to the host community. Then their attachment process was discussed.
Design/methodology/approach
The study deployed a qualitative research methodology with purposeful sampling to gain a closer insight into the trails, experiences, feelings and perceptions of international students.
Findings
The findings in this qualitative research underscore the importance of the individual’s will to adjust to the host society, at the same time to preserve the valuable sense of ethnic and personal identity for each foreign student. The focus group interviews reveal that domestic students, are not necessarily hostile towards international students, but simply do not know how to approach them without intruding in and violating the privacy and cultural norms of international students.
Research limitations/implications
This qualitative study had only eight participants, which may hinder generalizability of findings. Future studies with survey methods to look into international students’ perceptions can be supplementary to the authors’ study.
Practical implications
Quantitative studies with a significant number of international students’ perceptions rather than standardized scores or administrative records can provide an important layer in the literature body. This way, future research can unpack individual differences regarding social alienation with more nuances.
Social implications
The research does not generalize the students’ experiences by classifying them into ethnic groups or representatives. However, it could be informative to look into same country population reflections, too.
Originality/value
This study is focused on the students’ marital status seeking to understand a pattern that may differentiate the sociocultural acclamation or alienation processes, exploring their socializations within academic (e.g. classmates and professors) or nonacademic contexts (e.g. on or off-campus social/affinity groups), racial–ethnic sensitivity and perceived pressure and stereotypes among foreign students.
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HyeJin Tina Yeo, Malaika McKee and William Trent
In this chapter, EYES theory proposes that international students view themselves and appraise their social standing of their own race based in relationship to extant social…
Abstract
In this chapter, EYES theory proposes that international students view themselves and appraise their social standing of their own race based in relationship to extant social perceptions of racial stereotypes in the United States. These stereotypes are determined by geography which exude from the legacy of enslavement in the United States. EYES theory proposes that international students view racial differences through these dynamics by assessing their own identity in regards to race, colorsim and group identification. Specifically, international students use racial groups to classify, rank, and understand racial differences that are informed by these social geographies that impart a white/black racial discourse by which international students navigate their social status. EYES theory challenges the intellectual perception of heterogeneity among international students and in regards to race posits that international students experience mico and macrolevel contexts regarding race due to the socio-historical legacy of racism in the United States. The authors anticipate that EYES theory may have implications for study in other geographical contexts where a black white dichotomy serves as the parameter for understanding racial relationships and hegemony.
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An investigation to evaluate the suitability of anodised aluminium as a substrate material has shown that the relatively high coefficient of thermal expansion of the aluminium…
Abstract
An investigation to evaluate the suitability of anodised aluminium as a substrate material has shown that the relatively high coefficient of thermal expansion of the aluminium caused the brittle cermet resistors to craze giving rise to unstable resistance values whereas PTF resistors appeared to suffer no ill effects. The work was implemented in conjunction with selection of low temperature thick film conductor and resistor inks to achieve the optimum combination of anodised aluminium substrate and ink system. These inks were then printed and fired on anodised aluminium, aluminium nitride and alumina substrates, and the physical and electrical properties of the inks and substrates compared. A combination of modest success, employing polymer resistors and cermet conductors, produced viable circuits with resistors of reasonable stability. A low power hybrid device, with surface mounted components, was employed to further validate the substrate/ink combinations in ongoing tests.
On October 31st 1985, 48 members of the ISHM‐Benelux Chapter met at the Delft University of Technology for the Autumn 1985 meeting.
Prem Ramburuth and Charmine E.J. Härtel
The purpose of this paper is to highlight factors that facilitate or hinder the entry and academic achievement of students from low socioeconomic status into higher education, and…
Abstract
Purpose
The purpose of this paper is to highlight factors that facilitate or hinder the entry and academic achievement of students from low socioeconomic status into higher education, and facilitate understanding about how such students can be supported in their learning at university.
Design/methodology/approach
The authors draw on the literature on social inclusion, social exclusion, social identity and education, and link key aspects to the access, participation and learning success of students from low socioeconomic status backgrounds in higher education.
Findings
The paper identifies socioeconomic factors that impact on student learning and provides a comprehensive framework for understanding, supporting and addressing the needs of students from the target group.
Practical implications
The findings and discussion will contribute to the knowledge and teaching resource base required for institutions, academic and support staff to formulate and implement effective strategies for increased participation in higher education by students from low socioeconomic status backgrounds.
Originality/value
Most discussion and research on social inclusion and exclusion tends to relate to factors that lead to social disadvantage in general, but there is a growing need to consider the disadvantage in terms of access to higher education and the creation of learning opportunities that lead to success and educational advancement.
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Ilkay Yorganci and Mahtab Sadrimovahed
The aim of this study is to understand the acculturation experiences of international students in order to maximize their academic and social experiences which, in turn, can…
Abstract
Purpose
The aim of this study is to understand the acculturation experiences of international students in order to maximize their academic and social experiences which, in turn, can facilitate the development of sustainable educational tourism in the host country.
Design/methodology/approach
Using a qualitative methodology and semi-structured interview techniques, 40 international postgraduate tourism students from the Global South were interviewed.
Findings
The findings in this study demonstrated that the main problems faced by these students are inadequate funds and language difficulties.
Originality/value
This study highlighted the fact that although the number of international students is growing all over the world, for most of the students from poorer parts of the world, being an international student is fraught with difficulties. It also demonstrated that although acculturation stress is a serious concern, lack of adequate funding assumes greater importance for students from a poor background.
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Brian Waterfield, G. Kersuzan and Boguslaw Herod
The Benelux chapter has made a habit of organising meetings with a scientific and commercial accent more or less alternately. This approach has proven to be successful in the past…
Abstract
The Benelux chapter has made a habit of organising meetings with a scientific and commercial accent more or less alternately. This approach has proven to be successful in the past three years. The 1986 Autumn meeting will be another display meeting. A number of papers will be presented by suppliers of materials and equipment for the hybrid and surface mounting industry. In a 300 m2 exhibition room about 25 companies will display their products. The programme of the day leaves ample opportunity for meeting colleagues and suppliers. The meeting will be held in the ‘Jaarbeurs Vergadercentrum’ in Utrecht on 16 October from 9.30–17.00. The annual ISHM‐Benelux general membership meeting will precede the lectures.