Jonghoon Kim, Jin-Young Hyun, Wai K. Chong and Samuel Ariaratnam
The purpose of this study was to explore the relationship between environmental factors and building energy consumption of three Leadership in Energy and Environmental Design…
Abstract
Purpose
The purpose of this study was to explore the relationship between environmental factors and building energy consumption of three Leadership in Energy and Environmental Design (LEED)-certified buildings at the Arizona State University, by establishing the relationships of the outside atmospheric temperature and the energy consumed in the building using real-time data generated from different sources.
Design/methodology/approach
K-means clustering analysis is used to calibrate and eliminate unwanted influences or factors from a set of building consumption real-time data. For further statistical analysis, the chi-square is used to verify if the results are ample to prove the findings.
Findings
Few studies have addressed building energy consumption real-time data versus LEED Energy and Atmosphere (EA) credits with the data mining technique (k-means clustering) on most of building performance analyses. This study highlighted that the calibrating energy data are a better approach to analyze energy use in buildings and that there is a relationship between LEED credits’ (EA) Optimize Energy Performance scores and building energy efficiency. However, the energy consumption data alone do not yield useful results to establish the cause and effect relationships.
Originality/value
Although there are several previous research studies regarding LEED building energy performance, this research study focused on the LEED building energy performance versus LEED EA credits versus environmental factors using real-time building energy data and various statistical methods (e.g. K-means clustering and chi-square). The findings provide researchers, engineers and architects with valuable references for building energy analysis methods and supplements in LEED standards.
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Jung Taik Hyun and Jin Young Hong
In this paper, we examine the comparative advantage of Korea and China while focusing on their technology level. The three digit SITC (Standard International Trade Classification…
Abstract
In this paper, we examine the comparative advantage of Korea and China while focusing on their technology level. The three digit SITC (Standard International Trade Classification) data is classified by technology level and the revealed comparative advantage (RCA) is derived from 1992-2009 by using UN COMTRADE data. For careful interpretation of the comparative advantage and technology levels, we also examined intra-industry trade and unit values of bilateral Korea-China trade, and semi-conductor industry technology. We found that the revealed comparative advantage has moved from low technology products to high technology products in Korea. China still maintains a comparative advantage in low technology products such as textiles and clothing, but at the same time, China’s high and medium-high technology products have recently gained a comparative advantage. The perception that China only has a comparative advantage for labor intensive products with low technology should be changed based on our analysis. However, China’s advancement in technology should not be overestimated. When comparing the unit value of basic materials of Korea’s and China’s exports, we found that Korea’s export product prices are on average higher than that of China’s, although the gap is reducing. A wider technology gap between Korea and China still exists in the semi-conductor industry, which is one of the most advanced high technology industries throughout the world.
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Jung Taik Hyun and Jin Young Hong
The economic success of East Asia was due to an export-led growth strategy, which was heavily dependent on the global trading system underpinned by the General Agreement on…
Abstract
The economic success of East Asia was due to an export-led growth strategy, which was heavily dependent on the global trading system underpinned by the General Agreement on Tariffs and Trade (GATT) and the World Trade Organization (WTO). In recent years, however; East Asian countries have shifted their trade policy focus to regional agreements and made Free Trade Agreements (FTAs) among themselves arid with other regions. Government organization has been restructured to increase FTA activities. Generally, the current literature predicts that FTA activities of East Asia would help to increase the welfare of the region. In this paper; we offer a critical assessment of East Asia FTAs. We note that East Asia FTAs provide incomplete coverage of sectors and are likely to lead to an inefficient resource allocation. FTA movements are not matched with actual trade flows. The benefits of East Asia FTAs are fairly limited and potential benefits, if any, would not likely be materialized in the near future. Our overall assessment is that the recent policy shift in East Asian countries from multilateral trade orientation or unilateral action to regionalism or a parallel multilateral and regional trade approach will not produce much gain. The governments should increase their efforts at economic reform and reduce barriers to trade and investment, rather than to allocate more resource and manpower to FTA activities.
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The purpose of this paper is to outline a framework for marketing cultural goods (e.g. music) to global markets by examining modes of entry and positioning strategies used by…
Abstract
Purpose
The purpose of this paper is to outline a framework for marketing cultural goods (e.g. music) to global markets by examining modes of entry and positioning strategies used by media producers of the South Korean music industry.
Design/methodology/approach
An historic analysis was implemented to investigate the modalities and structures through which cultural products are produced and disseminated. Data for this study came from 314 articles collected from www.allkpop.com, a leading English-language, South Korean popular culture news site.
Findings
The cultural technology framework consists of the institutionalization of cultural technology, exportation of cultural content, collaborations with local talent, and joint ventures with local markets.
Research limitations/implications
The findings emerge from an analysis of South Korean popular music industries, and further research is needed to generalize the results across cultural industries.
Practical implications
The cultural technology framework can be applied to cultural industries such as music, film, comics, and art, where culture and language could be barriers to adoption.
Originality/value
This study outlines a framework for the modes of entry and positioning strategies of cultural goods (e.g. music) in international markets. Extant literature has examined global marketing from the purview of durable consumer goods and brands, with limited insights into cultural products. More broadly, this paper addresses the call for more qualitative inquiry into international marketing topics.
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Jung Taik Hyun, Jun Yeop Lee and Jin Young Hong
This paper examines global imbalance and rebalancing issues from the viewpoint of Korea. As IMF (2009) notes, the unwinding of global imbalance seems inevitable and, in fact, it…
Abstract
This paper examines global imbalance and rebalancing issues from the viewpoint of Korea. As IMF (2009) notes, the unwinding of global imbalance seems inevitable and, in fact, it is in progress. We illustrate that Korea, with a flexible exchange rate system and relatively balanced current accounts, has little direct linkage to global imbalance. However, we also find that Korea is not immune to the costly adjustment process of imbalance due to the triangular trade between Korea, China and the U.S. The fact that Korea is ‘indirectly’ linked to global imbalance limits Korea’s ability to cope with the situation. Boosting domestic demand, often mentioned recommendation for East Asia, is not an appropriate solution for Korea with low personal savings rate. A lot depends on China’s policy. If China reduces its dependence on U.S. market and increases domestic consumption despite unemployment risk in export manufacturing sector, it will provide Korea with an opportunity for more stable growth based on China’s final demand. Korea can also make efforts to increase economic integration and expand monetary cooperation in Asia that would help to increase consumption demands and final goods trade in the region.
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The purpose of this paper is to explore and describe different viewpoints on the use of social networking sites (SNSs). It analyzes perceptional typologies of SNS users and the…
Abstract
Purpose
The purpose of this paper is to explore and describe different viewpoints on the use of social networking sites (SNSs). It analyzes perceptional typologies of SNS users and the characteristics of each type, which has similarities and differences. It also examined possible relationships among different perceptional types, users’ self-identities, and their personality.
Design/methodology/approach
This study utilized Q-methodology in order to identify diverse explanations of SNS users’ perspectives. Q-methodology requires participants (referred to as P sample) to sort a series of items (Q-statements). After completing a questionnaire including demographics, self-identity, etc., each respondent performed the Q-sorting work. This task involves sorting well-composed statements about SNSs (Q-sample). In all, 46 SNS users from a university in Korea were chosen as participants. Once the P sample had finished Q-sorting, participants had in-depth interviews. When all interviews were finalized, analysis of the Q-sorts was done with the help of QUNAL program.
Findings
Consequently, four types of SNS users were identified and given the following descriptive labels: Impression Management Type, Lurker Type, SNS Enjoyer and Relationship Focus Type, and Social Value Orientation Type. Further, there was a significant difference in “Relational Identity” among user types. Regarding personality, the extraversion of Type III appeared to be the highest, and the extraversion of Type II appeared to be the lowest.
Originality/value
Combining aspects of both qualitative and quantitative research to study the subjectivity, the findings of this study provide insight for further research regarding an audience study or an examination of the media behaviors of SNSs. It also suggests theoretical and practical implications.
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Clara Lee Brown, Natalia Ward and Benjamin H. Nam
While conceived to examine key factors affecting post-retirement career advancement of retired elite athletes in South Korea, the purpose of this paper is to report how English…
Abstract
Purpose
While conceived to examine key factors affecting post-retirement career advancement of retired elite athletes in South Korea, the purpose of this paper is to report how English, as a de facto global lingua franca, functions as a powerful gatekeeper in the sports administration field.
Design/methodology/approach
Interpreted through the lens of Bourdieu’s linguistic capital and Gramsci’s hegemony of language, the present study draws on content analysis of semi-structured individual interviews, as well as focus group interviews, conducted with thirty former South Korean elite athletes.
Findings
Based on the data analysis, systematic bias toward athletes was uncovered, privileging English as the single determining factor for employment. Furthermore, the educational implications for adult learners of English as a Foreign or English an Additional Language reveal unrealistic expectations of top–down language policies.
Originality/value
Perspectives of athlete participants, an underrepresented group in educational research, within the South Korean globalization context shed critical light on the pervasive aspects of English hegemony and its unexamined dimensions.
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Young Jin Shin, Ebrahim Farrokh, Jaehoon Jung, Jaewon Lee and Hanbyul Kang
Despite the many advantages this type of equipment offers, there are still some major drawbacks. Linear cutting machine (LCM) cannot accurately simulate the true rock-cutting…
Abstract
Purpose
Despite the many advantages this type of equipment offers, there are still some major drawbacks. Linear cutting machine (LCM) cannot accurately simulate the true rock-cutting process as 1. it does not account for the circular path along which tunnel boring machine (TBM) disk cutters cut the tunnel face, 2. it does not accurately model the position of a disk cutter on the cutterhead, 3. it cannot perfectly replicate the rotational speed of a TBM. To enhance the knowledge of these issues and in order to mimic the real rock-cutting process, a new lab testing equipment was developed by Hyundai Engineering and Construction.
Design/methodology/approach
A new testing machine called rotary cutting machine (RCM) is designed to simulate the excavation process of hard-rock TBMs and includes features such as TBM cutterhead, RPM simulation, constant normal force mode and constant penetration rate mode. Two sets of tests were conducted on Hwandeung granite using different disk cutter sizes to analyze the cutting forces in various excavation modes. The results are analyzed using statistical analysis and dimensional analysis. A new model is generated using dimensional analysis, and its results are compared against the results of actual cases.
Findings
The effectiveness of the new RCM test was demonstrated in its ability to apply various modes of excavation. Initial analysis of chip size revealed that the thickness of the chips is largely dependent on the cutter spacing. Tests with varying RPM showed that an increase in RPM results in an increase in the normal force and rolling force. The cutting coefficient (CC) demonstrated a linear correlation with penetration. The optimal specific energy is achieved at an S/p ratio of around 15. However, a slightly lower S/p ratio can also be used in the design if the cutter specifications permit. A dimensional analysis was utilized to develop a new RCM model based on the results from approximately 1200 tests. The model's applicability was demonstrated through a comparison of TBM penetration data from 26 tunnel projects globally. Results indicated that the predicted penetration rates by the RCM test model were in good agreement with actual rates for the majority of cases. However, further investigation is necessary for softer rock types, which will be conducted in the future using concrete blocks.
Originality/value
The originality of the research lies in the development of Hyundai Engineering and Construction’s advanced full-scale laboratory rotary cutting machine (RCM), which accurately replicates the excavation process of hard-rock tunnel boring machines (TBMs). The study provides valuable insights into cutting forces, chip size, specific energy, RPM and excavation modes, enhancing understanding and decision-making in hard-rock excavation processes. The research also presents a new RCM model validated against TBM penetration data, demonstrating its practical applicability and predictive accuracy.