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Emission Characteristics of Mercury in Zn Smelting Process (아연제련시설에서의 수은 배출특성)

  • Park, Jung-Min;Lee, Sang-Bo;Kim, Hyung-Chun;Song, Duk-Jong;Kim, Min-Su;Kim, Min-Jung;Kim, Yong-Hee;Lee, Sang-Hak;Kim, Jong-Chun;Lee, Suk-Jo
    • Journal of Korean Society for Atmospheric Environment
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    • v.26 no.5
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    • pp.507-516
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    • 2010
  • Stationary combustion sources such as coal-fired power plants, waste incinerators, industrial manufacturing, etc. are recognized as major sources of mercury emissions. Due to rapid economic growth, zinc production in Korea has increased significantly during the last 30 years. Total zinc production in Korea exceeded 739,000 tons in 2008, and Korea is currently the third largest zinc producing country in the world. Previous studies have revealed that zinc smelting has become one of the largest single sectors of total mercury emissions in the World. However, studies on this sector are very limited, and a large gap in the knowledge regarding emissions from this sector needs to be bridged. In this paper, Hg emission measurements were performed to develop emission factors from zinc smelting process. Stack sampling and analysis were carried out utilizing the Ontario Hydro method and US EPA method 101A. Preliminary data showed that $Hg^0$ concentrations in the flue gas ranged from 4.56 to $9.90\;{\mu}g/m^3$ with an average of $6.40\;{\mu}g/m^3$, Hg(p) concentrations ranged from 0.03 to $0.09\;{\mu}g/m^3$ with an average of $0.04\;{\mu}g/m^3$, and RGM concentrations ranged from 0.23 to $1.17\;{\mu}g/m^3$ with an average of $6.40\;{\mu}g/m^3$. To date, emission factors of 7.5~8.0 g/ton for Europe, North America and Australia, and of 20 or 25 g/ton for Africa, Asia and South America are widely accepted by researchers. In this study, Hg emission factors were estimated using the data measured at the commercial facilities as emissions per ton of zinc product. Emission factors for mercury from zinc smelting pross ranged from 4.32 to 12.96 mg/ton with an average of 8.31 mg/ton. The emission factors that we obtained in this study are relatively low, considering Hg contents in the zinc ores and control technology in use. However, as these values are estimated by limited data of single measurement of each, the emission factor and total emission amount must be updated in future.

A Feasibility Study on the Infrastructure Project of PCB Industrial Technology (PCB 산업기술 기반구축 사업의 타당성 분석 연구)

  • Kim, Dae Ho
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.8 no.4
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    • pp.57-66
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    • 2013
  • Domestic PCB industry formed by orders of demand companies is extremely vulnerable in its innovation infrastructure including high value-added technology development and information exchange. The majority of PCB products produced in the country relies on the imports from abroad and it causes its vulnerability to external market changes. Due to the negative perceptions about the industry (e.g., 3D job), low treatment (especially SMEs) and expertise employment avoidance in PCB industry, the job market conditions of PCB industry is not so good. In these circumstances, the PCB industry is completely dependent on the demand market such as cellular phones, and tablet PC, and as a result the responsiveness of PCB industry to the changes in demand market is also vulnerable. In this PCB industry, Korean government is trying to build the research infrastructure for PCB industry that realizes the sharing of information among companiesthrough the operation of the PCB industry innovation forum (information innovation), builds SME suppot platform and supports quality improvement (technology innovation), and supports enterprise collaboration processes (material-process-equipment) utilizing PCM open laboratory. The PCB industry technology infratstructure project is going to be promoted by the government(1.3 billion won, each year) and the private investmen(434 million won each year) from 2013 to 2017(5 years project)(table 1). This study analyzes the feasibility of the project, by using the AHP analysis and the results shows that this project is considered feasible because the AHP overall score is evaluated as 0.841, the overall score is greater than or equal to 0.55.

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A Study on the SMEs Priority System in National R&D programs: Definition and interpretation of Terms (국가연구개발사업 중소기업 우선제도에 관한 소고: 관련 규정의 용어 정의 및 해석)

  • Jung, Dong Duck
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.11 no.4
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    • pp.205-213
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    • 2016
  • This study clarified the definition and interpretation of terms relating to SMEs Priority System. First, 'Domestic' is defined that the address of office is in our country. Second, 'Technology utilization capacity' is defined that the de facto capacity to technology commercialization and utilization. for example. development or production or sales activity of the production using national r&d performance. Third, 'priority' in priority consideration is defined that when there are many companies trying sign technology utilization contract, technology providers shoud provide the opportunity of signing contract to SMEs primarily. 'priority consideration' is defined that technology providers shoud try to do enough to sign a contract with SMEs. This study has significance in that raising the application of the current SMEs Priority System.

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The Effect of Pre-entrepreneur's Individual Norm and Start-up Preparation Level on a Start-up Intention: Focusing on a Moderation Effect in Start-up Education (예비창업자의 개인적 규범과 창업준비 수준이 창업의지에 미치는 영향: 창업교육의 조절효과를 중심으로)

  • Kim, Seo Ho;Byun, Sang hea
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.13 no.1
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    • pp.11-21
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    • 2018
  • This study examined which influence the pre-entrepreneurs' individual norm and start-up preparation level have upon a start-up intention, and analyzed a moderating effect in start-up education as for a relationship of individual norm and start-up preparation level with a start-up intention. For the purpose of offering useful data so that the pre-entrepreneurs of planning start-up can do more successful start-up through this, it carried out questionnaire from September 13, 2017 to November 14, 2017 targeting pre-entrepreneurs who received start-up education at an educational institution and a university that are located in K region. As a result, excluding 11 copies with a difficulty in the application to statistics among totally 211 copies, 200 copies were chosen as the final samples. Data were conducted reliability analysis, factor analysis, correlation analysis and regression analysis by using SPSS 20.0. The results are as follows. First, the individual norm had a significant impact on a start-up intention. Second, the start-up preparation level had a significant effect on a start-up intention. Third, the start-up education had a moderating impact in the relationship between the individual norm and the start-up intention. Fourth, the start-up education had a moderating influence in the relationship between the start-up preparation level and the start-up intention. However, this study limited the sampling region to K area, thereby having a limitation in generalizing the findings all over the country. Moreover, there is a suggestion that a continuous research will need to be performed in terms of an influential factor in pre-entrepreneurs' start-up intention as well as in individual norm and start-up preparation level.

An Exploratory Study on the Relationship Between the Factors of Spatial Composition and Innovation in Makerspaces (메이커스페이스(Makerspaces)의 공간구성 요인과 혁신 간 관계에 대한 탐색적 연구)

  • Seo, Jin Won;Choi, Jong In
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.15 no.4
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    • pp.263-275
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    • 2020
  • In the vortex of change, commonly referred to as the Fourth Industrial Revolution, Korea has a national task of changing the paradigm of economic growth from a chase-type economic structure to a leading one. The era has come when all resources of the country, as well as the government and businesses, must join in innovation and growth in order to maintain the pace of sustained economic development, and significantly advanced countries are stimulating members' innovation activities with various policies and systems as they enter the 21st century. South Korea is also making efforts to create an open creative space referred to as Makerspace or Fab Lab, to create an innovative voluntary environment for its citizens. This study explored factors that Makerspace, which is proliferating in Korea, should consider to secure development and sustainability as an innovation (start-up) space. Through prior research, openness and expertise were derived from the characteristics of Makerspace, and expert interviews confirmed that the capabilities lacking in Makerspace and the capabilities to be secured in the future are openness and professionalism. Also, specific components of openness and professionalism were presented through prior research, and implications for each subject's Makerspace were presented, such as openness, professionalism, and commercialization.

Contamination and Detoxification of Aflatoxins (아플라톡신 오염 및 저감화 방안)

  • Cho, So-Yean;Kang, In-Ho;Shim, Young-Hoon;Yang, Dong-Hyug;Oh, Seh-Wook;Lee, Byung-Hee;Hyeon, Seong-Ye;Chang, Seung-Yeup;Jeong, Choon-Sik;Lee, Yong-Soo;Kim, Young-Shik;Kang, Shin-Jung
    • Korean Journal of Pharmacognosy
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    • v.38 no.3 s.150
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    • pp.205-216
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    • 2007
  • South Korea is the representative consumption country of herbal medicines and most of herbal medicines circulating in Korea have been importing from the developing countries of Southeast Asia such as China, Vietnam, Indonesia and so forth. Domestic hygiene and safety are continuously proposed because herbal medicines which are circulating have the possibility could remain contaminants or residues. Physicochemical contaminants such as heavy metals, persistent organic pollutants, radionucleosides, microbial toxins, biological contaminants such as microorganisms and animals, agrochemical residues such as pesticides, substances used for fumigation, antiviral agents, and solvent residues are classified as major contaminants and residues in herbal medicines from 2005 September WHO.$^{1)}$ Currently our administration have established a permission standard and the inspection criteria against the heavy metal, the residual pesticides and a residual sulfur dioxide. Furthermore our administration is continuously monitoring and conducting researches for the policies and their scientific ground against herbal medicines. But the appearances or discoveries of the harmful new species due to environmental and industrial developments are becoming social problems. Therefore it may be necessary to continuously consider and investigate regarding hereupon. Recently, the contamination of the mycotoxins against foods such as cereals, nuts and the powdered red pepper have developed and started became problematic issue, and possibility of contamination against the herbal medicine is proposed. And since populations who are using the herbal medicines very limited to several nations, recognition and researches about contamination of mycotoxins in herbal medicines are very insufficient. Therefore it will be need to more focus on the international regulation of quality control and safety for herbal medicines. Now on, we are going to introduce the importance, occurrence, characteristic properties, World-wide research trends and detoxification of aflatoxins, which is known as the most potent mutagen, carcinogen and teratogen mycotoxins.

A Comparative Study on the Image characteristics in Traditional Palaces of Korea, China and Japan (한 중 일 궁궐 건축의 이미지 특성 비교 연구)

  • Cho, Eun-Suk;Park, Young-Soon
    • Archives of design research
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    • v.18 no.1 s.59
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    • pp.27-38
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    • 2005
  • The purpose of this study is to find the unique image characteristics of Korea and identify the Korea culture by comparing the image characteristics of traditional palaces of Korea, China and Japan. This study identifies the unique image characteristics of Korea through a comparative analysis the image of three nations. Literature research, free association measurement, survey were conducted to select study objects and descriptive words. 5 outside-pictures and 2 inside-pictures of the Changduckung, the Forbidden City, the Nijo castle representing each country's traditional palaces were chosen as study objects. A questionnaire was made with 47 descriptive words and 5-scale measurement. The results of analysis are as follows. The representative words to express the image characteristics of Korea, China and Japan traditional palaces are adornment, stability, openness, lines, unfamiliarity, feminine. This study researched the common and different factors between the image characteristics in traditional palaces of Korea, China and Japan. The common image is the image of lines. The distinctive characteristics of Korea are stability, curved lines and femininity. The characteristics of China are adornment and straight lines. And, the characteristics of Japan are simplicity, unfamiliarity, and openness. Based on the research, it was found out that stability and curved lines are the main characteristics of Korea. This study researches the characteristics of images of Korea, China and Japan. This study shows the common and different factors of image characteristics of in the neighboring three nations of East Asia. Due to the geographical and cultural effect over a long time, the Korea was evaluated as the middle cultural between China and Japan. However, this study found unique characteristics of Korea's image.

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Market Growth, Competition, and Distribution Structure in Major Cities of the East Sea Rim (환동해지역 거점도시에서의 시장성장과 경쟁 및 유통구조: 후쿠오카, 울산 및 옌지의 시장을 중심으로)

  • Choi, Young-Jin
    • Journal of Distribution Science
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    • v.13 no.2
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    • pp.95-104
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    • 2015
  • Purpose - This is a comparative study of the market development and characteristics of Ulsan in South Korea, Fukuoka in Japan, and Yanji in China, which are major East Sea Rim cities with adjacent areas of similar natural characteristics of the sea and the country. Particularly, it considers these aspects while focusing on the evolution of networks that appear in the distribution system and at the same time examining the institutions of market activation and regulations that are handled by the central and the local government and the changing logistics due to the development of transportation and the concern of food safety, using a meso-analysis approach. Research design, data, and methodology - The study used a historical and comparative approach with a focus on case studies. It made use of various materials such as local newspaper articles, reports, literature, interviews with experts, discussions with local merchants, discussions with customers, and so forth. Results - In the case of Fukuoka, from the 1960s, due to the entry of supermarkets, supermarkets expanded and they have now come to a dominant market position in the current market. They offer a convenient and comfortable environment while providing a large mall offering a variety of educational and cultural activities for customers to meet the customers' needs, such as the preferences of Korean tourists, who appear to prefer Japanese foods. The Fukuoka City Central Wholesale Market has been exporting fruits and vegetables as well as seafood products to Korea, China, and so forth. In the case of Ulsan, as in the early 2000s, due to the expansion of supermarkets, the traditional markets have been shrinking and further, the modernization of traditional markets was conducted under the auspices of the Small Business Administration. In addition to the large discount malls, the expansion of SSM is expected to further drive the small trader bay. Shopping malls, department stores, and traditional markets contend with each other in Yanji, China, but a large number of citizens appear to prefer traditional markets and imported milk in the supermarket after the melamine scandal in China. Recently, the WanYuan (萬源) wholesale market has been partially completed and made an attempt to become a logistics hub in Northeast Asia. Conclusions - For the development of Korea's retail industry, it is important to offer the government with proposals regarding desired regulation. On the other hand, in order to enable the business of traditional markets, it requires an association for cultural tourism. At present, it would be better to provide a venture fund for the youth rather than infrastructure support. This study emphasizes the importance of institutions and policy to develop networks in the East Sea Rim. Future studies should conduct a survey on customers, managers, and merchants more carefully and systematically to understand the market situation while considering the size of the city and its evolution of markets, as well as policies and institutions.

Korean Dietary Life from the View of Foreigner in the early 1900s (1900년대 초 외국인이 본 한국인의 식생활)

  • Chung, Kyung Rhan
    • The Journal of the Korea Contents Association
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    • v.16 no.5
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    • pp.463-476
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    • 2016
  • Western countries came to Asia aggressively in the early 1900s. Westerners who came to Korea at that time also had a various jobs with diplomats, missionaries, doctors, and so on. Korean diet was curious and shocking to foreigners in the early 1990s, so they made a record of the Korean diet. They thought Korea was peaceful, attractive and rich to eat. Koreans ate mainly rice and kimchi, a variety of grains, vegetables and bibimbap. Korea had a variety of meat and fish, seaweed, and herbs(ginseng). Foreigners said Koreans were greedy for food and ate a lot. Koreans ate basically a bowl of rice(bap), a bowl of soup(kuk), kimchi, soy sauce and other dishes. If Koreans wanted to set a table in abundance, they have meat soup(kuk) with meat and additional fish like as raw fish, dried fish, and boiled or fried fish. Korean people had a jangdokdae with Ongki(Earthen jar) where soy sauce(kanjang), soybean paste(doenjang), red pepper paste(kochujang), pickles (jang-achi) have been fermented. Foreigners felt the smell of lacquer tree and kimchi hung in the air from Korean people. While they were compared it to the smell of western rim cheese burger, they said Korea was a country with nasty smell in the feet. By the records of foreigners in the early 1900s, Korean's diets and image were appeared objectively.

An Effect of Employment Stability by Business Incubator Manager on Performance by Business Incubation (창업보육센터 매니저의 고용안정성이 창업보육 성과에 미치는 영향)

  • Choi, Kang Deuk;Kim, Young Moon;Jo, InSeog
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.10 no.1
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    • pp.13-21
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    • 2015
  • To determine the effect of employment stability by business incubator manager on the service level and management performance by new businesses, the survey of 215 businesses at 50 business incubator centers over the country was conducted. This study is to confirm that employment stability by business incubator manager is one of significant variables to support growth of new businesses. As a result of study, with respect to the effect of employment stability by business incubator manager on the supportive service level and management performance by new businesses, the group with higher employment stability by manager revealed statistically more significant effect than the group with less did, and the group with higher employment stability showed higher manager performance as well. Furthermore, as a result of analyzing the relationship between supportive service level and management performance and performance by manager, as performance by manager is higher, the service satisfaction and management performance by new businesses were higher. This indicates that to support successful new business by the business incubator, the center shall ensure employment stability of a manager to establish the condition of stable support for new businesses, and that through enhancement of professionalism by a manager, the foundation to support growth of new businesses shall be prepared as well.

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