title: Integration of solar thermal for improved energy efficiency in low-temperature-pinch industrial processes

authors: Atkins, Martin John

subjects: solar thermal

abstract: Solar thermal systems have the potential to provide renewable industrial process heat and are especially suited for low pinch temperature processes such as those in the food, beverage, and textile sectors. When correctly integrated within an industrial process, they can provide significant progress towards both increased energy efficiency and reduction in emissions. However, the integration of renewable solar energy into industrial processes presents a challenge for existing process integration techniques due to the non-continuous nature of the supply. A thorough pinch analysis study of the industrial process, taking in to account non-continuous operating rates, should be performed to evaluate the utility demand profile. Solar collector efficiency data under variable climatic conditions should also be collected for the specific site. A systematic method of combining this information leads to improved design and an optimal operating strategy. This approach has been applied to a New Zealand milk powder plant and benefits of several integration strategies, including mass integration, are investigated. The appropriate placement of the solar heat is analogous to the placement of a hot utility source and an energy penalty will be incurred when the solar thermal system provides heat below the pinch temperature.

text: Integration of solar thermal for improved energy efficiency in low-temperature-pinch industrial processes Solar thermal systems have the potential to provide renewable industrial process heat and are especially suited for low pinch temperature processes such as those in the food, beverage, and textile sectors. When correctly integrated within an industrial process, they can provide significant progress towards both increased energy efficiency and reduction in emissions. However, the integration of renewable solar energy into industrial processes presents a challenge for existing process integration techniques due to the non-continuous nature of the supply. A thorough pinch analysis study of the industrial process, taking in to account non-continuous operating rates, should be performed to evaluate the utility demand profile. Solar collector efficiency data under variable climatic conditions should also be collected for the specific site. A systematic method of combining this information leads to improved design and an optimal operating strategy. This approach has been applied to a New Zealand milk powder plant and benefits of several integration strategies, including mass integration, are investigated. The appropriate placement of the solar heat is analogous to the placement of a hot utility source and an energy penalty will be incurred when the solar thermal system provides heat below the pinch temperature.

year: 2010

title: Sociocultural and academic adjustment experiences of Omani international students at a New Zealand university

authors: Al-Tamimi, Muwafaq

abstract: Promoting international student mobility is a key consideration in the internationalisation of higher education. Due to this attention, it has become increasingly important to understand international students’ experiences. Previous research on international students’ adjustment experiences has reported various issues and unique aspects depending on the context of their adjustment. However, there is a need for research on Omani international students in New Zealand to provide insight into what might affect students’ academic, social, and cultural adjustment. This study explored how Omani students described their sociocultural and academic adjustment experiences and how they gave meaning to these from their viewpoints.   
A qualitative phenomenological approach underpinned by an interpretive research paradigm was used to investigate the adjustment experiences of 12 Omani student participants. Data were gathered through semi-structured interviews from January to September 2020 at one New Zealand university. Two rounds of interviews were held for each participant. During data collection, Omani participants were enrolled in bachelor degree programmes in Engineering, Education, Earth Science, and Management. NVivo 11 was used to assist in organising and analysing data from the interviews using a thematic approach.  
Findings suggest that Omani students experienced adjustment as an interactive social, cultural, and academic experience. For most of them, their initial experience was facilitated by their homestay, attendance at language school, and participation in the Omani Students’ Association. This triad of interactions and support meant Omani students felt happy and included in the local community. However, after this initial stage of comfort, many experienced negative emotions, such as homesickness, especially during Islamic holidays.  
Omani students’ sociocultural adjustment was made easier by them engaging in social interaction and seeking out friendships. However, they reported little interaction with hostnational students; most interactions and friendships were with co-nationals and international friends. Omani students did not experience cultural distance as a barrier to their adjustment process despite the move from a Muslim-majority country to a Western country. Thus, overall, students reported being satisfied with their lives in New Zealand. They were conscious they had developed self-discipline and self-reliance, which they viewed as important in their successful adjustment.
Academic adjustment was promoted by interaction with other students in group work and academic support from their lecturers. Group work was reported as an opportunity to interact with degree programme classmates and make new friends, but six of the 12 students described difficulties interacting in group work. Interactions with lecturers were described as informal and positive for academic success.  
Across both their social and academic lives, the participating Omani students identified their proficiency with English as a barrier to communication and adjustment. As a result, they were eager to improve their English levels to integrate into the host culture and community.  
The U-curve model (Lysgaard, 1955) and the ABC model (Ward et al., 2001) were used as lenses to explain the above findings. The U-curve model describes the adjustment process as four stages: “honeymoon”, “culture shock”, “adjustment”, and “mastery”. The U-curve model was able to describe and explain the adjustment experiences of eight of the 12 students in this study in suggesting a honeymoon period on arrival. However, four students reported difficulty in terms of homesickness and loneliness upon arrival. This fits with the ABC model, which proposes that adjusting to a new culture can be initially difficult and stressful, but, over time, individuals can manage stress and learn the social skills needed for effective interactions, leading to adjustment. Hence, the study findings indicate the need for a model that allows for two different initial experiences and acknowledges that international students move through stages of adjustment. The culture learning process in the ABC model can explain the mechanism of moving between the stages of the U-curve model.  
Findings have implications for Omani scholarship providers, future Omani international students, New Zealand policy makers, and New Zealand universities. They are advised to consider the importance of homestays in providing a comfortable, safe environment for students to interact with host nationals. It is also recommended that the value of having intercultural friendships and being open to other cultures is promoted to Omani students, as this can ease the adjustment process.

text: Sociocultural and academic adjustment experiences of Omani international students at a New Zealand university Promoting international student mobility is a key consideration in the internationalisation of higher education. Due to this attention, it has become increasingly important to understand international students’ experiences. Previous research on international students’ adjustment experiences has reported various issues and unique aspects depending on the context of their adjustment. However, there is a need for research on Omani international students in New Zealand to provide insight into what might affect students’ academic, social, and cultural adjustment. This study explored how Omani students described their sociocultural and academic adjustment experiences and how they gave meaning to these from their viewpoints.   
A qualitative phenomenological approach underpinned by an interpretive research paradigm was used to investigate the adjustment experiences of 12 Omani student participants. Data were gathered through semi-structured interviews from January to September 2020 at one New Zealand university. Two rounds of interviews were held for each participant. During data collection, Omani participants were enrolled in bachelor degree programmes in Engineering, Education, Earth Science, and Management. NVivo 11 was used to assist in organising and analysing data from the interviews using a thematic approach.  
Findings suggest that Omani students experienced adjustment as an interactive social, cultural, and academic experience. For most of them, their initial experience was facilitated by their homestay, attendance at language school, and participation in the Omani Students’ Association. This triad of interactions and support meant Omani students felt happy and included in the local community. However, after this initial stage of comfort, many experienced negative emotions, such as homesickness, especially during Islamic holidays.  
Omani students’ sociocultural adjustment was made easier by them engaging in social interaction and seeking out friendships. However, they reported little interaction with hostnational students; most interactions and friendships were with co-nationals and international friends. Omani students did not experience cultural distance as a barrier to their adjustment process despite the move from a Muslim-majority country to a Western country. Thus, overall, students reported being satisfied with their lives in New Zealand. They were conscious they had developed self-discipline and self-reliance, which they viewed as important in their successful adjustment.
Academic adjustment was promoted by interaction with other students in group work and academic support from their lecturers. Group work was reported as an opportunity to interact with degree programme classmates and make new friends, but six of the 12 students described difficulties interacting in group work. Interactions with lecturers were described as informal and positive for academic success.  
Across both their social and academic lives, the participating Omani students identified their proficiency with English as a barrier to communication and adjustment. As a result, they were eager to improve their English levels to integrate into the host culture and community.  
The U-curve model (Lysgaard, 1955) and the ABC model (Ward et al., 2001) were used as lenses to explain the above findings. The U-curve model describes the adjustment process as four stages: “honeymoon”, “culture shock”, “adjustment”, and “mastery”. The U-curve model was able to describe and explain the adjustment experiences of eight of the 12 students in this study in suggesting a honeymoon period on arrival. However, four students reported difficulty in terms of homesickness and loneliness upon arrival. This fits with the ABC model, which proposes that adjusting to a new culture can be initially difficult and stressful, but, over time, individuals can manage stress and learn the social skills needed for effective interactions, leading to adjustment. Hence, the study findings indicate the need for a model that allows for two different initial experiences and acknowledges that international students move through stages of adjustment. The culture learning process in the ABC model can explain the mechanism of moving between the stages of the U-curve model.  
Findings have implications for Omani scholarship providers, future Omani international students, New Zealand policy makers, and New Zealand universities. They are advised to consider the importance of homestays in providing a comfortable, safe environment for students to interact with host nationals. It is also recommended that the value of having intercultural friendships and being open to other cultures is promoted to Omani students, as this can ease the adjustment process.

year: 2024

title: Analysis of errors in the writing of first year university students of Māori

authors: Earnshaw, Lorene

subjects: Te reo Māori

abstract: This paper presents a survey of the range of grammatical and lexical errors made in written Māori by University students taking an introductory course in Māori language. We begin by introducing, and discussing the motivation for, an error classification system which accommodates different classes of error. We then provide an analysis of errors in three different types of student writing: homework assignments, impromptu tests and examination transcripts. We conclude with some remarks about the patterns of error which we found.

text: Analysis of errors in the writing of first year university students of Māori This paper presents a survey of the range of grammatical and lexical errors made in written Māori by University students taking an introductory course in Māori language. We begin by introducing, and discussing the motivation for, an error classification system which accommodates different classes of error. We then provide an analysis of errors in three different types of student writing: homework assignments, impromptu tests and examination transcripts. We conclude with some remarks about the patterns of error which we found.

year: 2004-09