Low-Level Students’ Perspectives Toward Synchronous and Asynchronous Blended Learning Activities in the Post-Pandemic Era

Irvin,Christopher(Irvin,Christopher ) 영상영어교육학회 2024 영상영어교육 (STEM journal) Vol.25 No.1

Entering the post-pandemic era, educators at universities across South Korea dealt with many restrictions and challenges transitioning back to face-to-face courses. To overcome these difficulties, some instructors used their experiences during emergency remote teaching to incorporate more blended learning activities. This study aimed to gain insight into low-level students’ perspectives toward participating in online synchronous and online asynchronous activities during an in-person EFL course in the first semester of 2022. A total of 83 students participated in this study by completing a series of surveys composed of a mix of Likert-scale and semi-structured qualitative questions. Data analysis combined descriptive statistical analysis with qualitative analysis based on the creation of themes and categories. Key findings are as follows: first, learners enjoyed both types of blended learning activities but preferred asynchronous discussion boards; second, low-level learners believe synchronous activities can help improve their listening skills, while asynchronous activities provide valuable chances to read and write; third, low-level students will accept an activity if they perceive it has value, and these learners have their own opinions of how to make the activities better. Specific comments and examples related to student perspectives and suggestions for the future use of blended learning activities are discussed.

A Study of Students’ Perceptions Toward the Use of ICT Tools and Collaboration Activities to Increase Interactions During COVID-19

Irvin,Christopher,Park Seong Man(Seong Man Park) 영상영어교육학회 2022 영상영어교육 (STEM journal) Vol.23 No.4

This study has been conducted to investigate what students thought about their experiences trying to interact more frequently during the fall semester of 2020. It took place in a general English classroom at a private Korean university during the COVID-19 pandemic and aimed to gain insight into students’ perceptions of whether using a learning management system and other Information and Communication Technology tools, taking part in asynchronous discussion board activities, and completing voluntary activities would increase the number of interactions despite taking an emergency online class. A total of 28 first-year students from 6 different sections of a freshmen-level general English course voluntarily participated by filling out a survey at the end of the semester. For data analysis, descriptive statistics were initially analyzed to provide basic numerical data. Then, qualitative analysis was used to find common themes. Finally, student quotes were used to add greater meaning to the findings. The main finding was that the number of interactions between learners and the content, their instructors, and their peers increased due to the use of the learning management system and Information and Communication Technology tools. More detailed findings and implications for future uses are discussed.

Development and Application of Micro-alloyed Steels (1)

Irvine, K. J. 대한금속재료학회(대한금속학회) 1984 대한금속·재료학회지 Vol.22 No.12

Korea`s Balancing Act: Playing the Long Game

( Irvin Oliver ) 한국국방연구원 2013 The Korean Journal of Defense Analysis Vol.25 No.2

Regional security analyses of Northeast Asia focus largely on North Korea, China, and the ongoing maritime disputes within the region. There is less discussion, however, on the wider security outlook of the region and its impact on the individual countries of Northeast Asia. This paper analyzes the security environment of Northeast Asia and how it affects the defense decision-making of the Republic of Korea. This paper also assesses the current state of the South Korean alliance with the United States and considers how the state of this alliance affects Korean security decision-making, and finds that South Korea is attempting to balance there gional security threats it perceives with changing domestic political demands. The security developments South Korea is pursuing may lead to deterioration in regional security, but the United States may be able to support regional stability through its alliances and forward presence. In analyzing both external and internal factors that influence South Korean defense decision-making, this research helps to contextualize these decisions and inform readers of the complex environment in which those decisions occur.

Improving Distributed Forensics and Incident Response in Loosely Controlled Networked Environments

Irvin Homem,Theo Kanter,Rahim Rahmani 보안공학연구지원센터 2016 International Journal of Security and Its Applicat Vol.10 No.1

Mobile devices and virtualized appliances in the Internet of Things can be end nodes on varying networks owned by different parties over time, while still seamlessly participating in licit or illicit activities. Digital Forensics and Incident Response (DFIR) tools today struggle to perform digital investigations in such loosely controlled networked environments as they face several challenges including: scarcity of resources, availability, trust, privacy, data volumes, velocity and variety. In this paper we analyze the state of research in DFIR in networked environments, identifying the challenges facing DFIR tools particularly in loosely controlled network environments. We present the requirements for a system to address these challenges at the various steps of the typical digital investigation methodology. From this we identify the need for support from Peer to Peer (P2P) overlays and discuss their relative merits and drawbacks in order to identify those that would best support DFIR in loosely controlled networked environments. Finally we incorporate both structured and unstructured P2P overlays in various capacities in our architecture in order to organize devices in loosely controlled networks, using context information, thus enabling efficient capture, analysis and reporting of artifacts of use in digital investigations.

Compliance with Smoke-Free Policies in Korean Bars and Restaurants in California: a Descriptive Analysis

Irvin, Veronica L.,Hofstetter, C. Richard,Nichols, Jeanne F.,Chambers, Christina D.,Usita, Paula M.,Norman, Gregory J.,Kang, Sunny,Hovell, Melbourne F. Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.3

Background: Compliance with California's smoke-free restaurant and bar policies may be more a function of social contingencies and less a function of legal contingencies. The aims of this study were: 1) to report indications of compliance with smoke-free legislation in Korean bars and restaurants in California; 2) to examine the demographic, smoking status, and acculturation factors of who smoked indoors; and 3) to report social cues in opposition to smoking among a sample of Koreans in California. Materials and Methods: Data were collected by telephone surveys administered by bilingual interviewers between 2007-2009, and included California adults of Korean descent who visited a Korean bar or restaurant in a typical month (N=2,173, 55% female). Results: 1% of restaurant-going participants smoked inside while 7% observed someone else smoke inside a Korean restaurant. Some 23% of bar-going participants smoked inside and 65% observed someone else smoke inside a Korean bar. Presence of ashtrays was related to indoor smoking in bars and restaurants. Among participants who observed smoking, a higher percentage observed someone ask a smoker to stop (17.6%) or gesture to a smoker (27.0%) inside Korean restaurants (N=169) than inside Korean bars (n=141, 17.0% observed verbal cue and 22.7% observed gesture). Participants who smoked inside were significantly younger and more acculturated than participants who did not. Less acculturated participants were significantly more to likely to be told to stop smoking. Conclusions: Ten years after implementation of ordinances, smoking appears to be common in Korean bars in California.

Student Insights Related to the Use of Simultaneous Speech Translation for Video Lectures in a University English Course

Irvin Christopher 영상영어교육학회 2021 영상영어교육 (STEM journal) Vol.22 No.4

For native English-speaking teachers, the ability to overcome communication issues caused by not having the same first language as their pupils is a challenge, especially with low-level students. The increased use of video lectures due to COVD-19 has made this even more difficult. This study was conducted to investigate whether the use of Artificial Intelligence-powered interlingual Simultaneous Speech Translation subtitled video lectures could be a practical solution to overcome this challenge. To that end, 14 participants from a first-semester prerequisite General English course took part in this study. A semi-structured interview was combined with surveys and descriptive statistics, and data was analyzed through qualitative means of thematic, descriptive, and inductive procedures that relied on simultaneous analysis and category construction. Key findings were as follows: First, respondents found the subtitled videos to be highly satisfactory and fairly accurate. Second, respondents reported greater content understanding as the main advance and less emphasis on improving listening ability as the primary disadvantage. Third, the use of English instead of Korean subtitles or subtitling only certain sections of the video in Korean were the main suggestions for the future. Specific responses from the student interviews and future implications are discussed.

Electrochemical properties and durability of in-situ composite cathodes with SmBa_0.5Sr_0.5Co₂O_5+δ for metal supported solid oxide fuel cells

Irvine, John T.S.,Bae, Joongmyeon,Park, Jun-Young,Choi, Won Seok,Kim, Jung Hyun Elsevier 2017 INTERNATIONAL JOURNAL OF HYDROGEN ENERGY - Vol.42 No.2

<P><B>Abstract</B></P> <P>The electrochemical properties and long-term performance of an in-situ composite cathode comprised of SmBa<SUB>0.5</SUB>Sr<SUB>0.5</SUB>Co<SUB>2</SUB>O<SUB>5+δ</SUB> (SBSCO) and Ce<SUB>0.9</SUB>Gd<SUB>0.1</SUB>O<SUB>2−δ</SUB> (CGO91) are investigated for metal supported solid oxide fuel cell (MS-SOFC) application.</P> <P>The Area Specific Resistance (ASR) of an in-situ composite cathode comprised of 50 wt% of SBSCO and 50 wt% of CGO91 (SBSCO:50) is 0.031 Ω cm<SUP>2</SUP> in the first stage of measurement at 700 °C; this value of ASR increases to 0.138 Ω cm<SUP>2</SUP> after 1000 h. The ASR of SBSCO:50 (in-situ sample at 750 °C) is 0.014 Ω cm<SUP>2</SUP> at the initial stage of measurement; the increase of ASR after 1000 h at 750 °C is only 0.067 Ω cm<SUP>2</SUP>. These results suggest that the optimum temperature for in-situ firing of an SBSCO:50 cathode sample of MS-SOFC is higher than 700 °C, ideally around 750 °C.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Electrochemical properties of the in-situ SBSCO:50 cathode were investigated. </LI> <LI> The ASR values of in-situ cathode were 0.031 and 0.014 Ω cm<SUP>2</SUP> at 700 and 750 °C. </LI> <LI> The increase of ASR after 1000 h at 750 °C was found to be only 0.067 Ω cm<SUP>2</SUP>. </LI> </UL> </P>

Development and application of Micro-alloyed Steels (2)

Irvine, K. J. 대한금속재료학회(대한금속학회) 1985 대한금속·재료학회지 Vol.23 No.1

An Investigation of Korean College Students’ Perceptions of Interactions During Remote Courses Caused by COVID-19

Christopher Irvin,박성만 한국영어어문교육학회 2021 영어어문교육 Vol.27 No.1

The aim of this study was to investigate specific examples and suggestions related to the personal experiences of university students during remote courses. A total of 148 first-year students completed a semi-structured qualitative survey composed of 13 questions to determine their reflections and perspectives towards their first semester of remote learning; then, the data was analyzed through thematic, descriptive, and inductive analysis procedures with non-statistical analysis. Key findings are as follows: First, students felt that interactions could be completed more effectively if multiple modes of communication were utilized. Second, efforts should be made by the professor to encourage more student interactions, with students suggesting that an increase in verbal communications, better organizations, more coordination, and improved monitoring of students could be accomplished through holding more synchronous classes, expanding the number of speaking activities, and employing more teacher demonstrations and so on. Third, students realize more personal efforts and ownership of student-to-student and student-to-teacher interactions are needed to interact with a larger number of peers in their classes, but also there is presently a large desire to include more real-time and verbal interactions. Specific comments and examples related to what students experienced and suggested for improving future online classes are discussed.