• Title/Summary/Keyword: Common elements

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Size Distribution and Source Identification of Airborne Particulate Matter and Metallic Elements in a Typical Industrial City

  • Ny, Mai Tra;Lee, Byeong-Kyu
    • Asian Journal of Atmospheric Environment
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    • v.4 no.1
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    • pp.9-19
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    • 2010
  • The size distribution of airborne particulate matter (PM) and the concentrations of associated metallic elements were investigated in a busy urban region of a typical Korean industrial city. The PM concentrations measured during the spring, except for those in the size range of 1.1 to 2.1 ${\mu}m$, were slightly higher than the PM concentrations in the summer. Coarse particles contributed greatly to the variation in PM concentrations in the spring, while fine and submicron particles contributed largely to the variation in PM concentrations in the summer. The difference in size modes of the PM concentrations between spring and summer may be explained by the Asian dust effect and its accompanying wind direction and speed. Extremely high enrichment factors (EFs) values (6,971 to 60,966) for all of the size distributions in PM were identified for cadmium (Cd). High EFs values (12 to 907) were also identified for other heavy metals including Cr, Cu, Ni, Pb, Zn and Mn. Low EF values (0.29 to 8.61) were identified for Ca, K, Mg and Na. These results support the common hypothesis that most heavy metals in ambient PM have anthropogenic sources and most light metals have crustal sources. The results of principal components analyses and cluster analyses for heavy metals indicate that the principal sources of PM and metals were emissions from non-ferrous metal smelters, oil combustion, incinerators, vehicular traffic and road dust.

A Study on the Description Elements of the Colophon in Chinese Books (중국의 도서 판권기 기술요소 고찰)

  • Lee, Myoung-Gyu
    • Journal of Korean Library and Information Science Society
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    • v.44 no.3
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    • pp.359-378
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    • 2013
  • This study arranged the function and role of colophon and looked around the history, relevant laws, and description elements of books issued in China. According to the colophon of books issued from China, all colophon have copyrights and description elements in common. Colophon is that we recorded the bibliographic area of the proper book in special place, namely the inside of the cover. Besides, the colophon additionally includes necessary bibliographic areas depending on the development of publishing technology and transition of publishing environment. This colophon is offered as useful sources of information when librarians want to make up the catalog in the library.

An Analysis on Structures of Man's Costume in Byzantine Empire

  • Yoon, Jeom-Soon
    • Journal of Fashion Business
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    • v.8 no.6
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    • pp.57-67
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    • 2004
  • The forms of man's costumes in Byzantine Empire were changed according to each composition of costumes. Those forms of costumes had common features of each period when costumes were included. At the same time, however, the fact that differences existed in accordance with a social position including gender, class, occupation, etc. even though in same period were showed. Analytic elements of man's costumes in Byzantine Empire were selected by important factors. This showed the meanings of position and class in that time. The kinds of analytic elements in man's outwear were various but the forms of costumes were not developed because christianity influenced the forms of clothing in the Middle Ages. As the result of synthesis, the main factor of man's costumes was a tunic in Byzantine Empire of the Middle Ages The phases of the times were reflected on the structure of man's costumes in Byzantine Empire. In particular, religious feature was emphasized, and analytic elements of costumes having meanings showed the features of the society at the Middle Ages. For example, a central analytic element of man's costume, an outer garment was a tunic style of H-silhouette that hid the body line. This was influenced by the phases of the times. Namely, the costume stands as a symbol of the times, and also is a cultural sign that reflects phases like politics, economy, religion.

Fabrication and Measurement of Tunable Millimeter-wave Filters (주파수 가변형 밀리미터파 필터의 제작 및 측정)

  • Park, Jae-Hyoung;Kim, Hong-Teuk;Kwon, Young-Woo;Kim, Yong-Kweon
    • The Transactions of the Korean Institute of Electrical Engineers C
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    • v.49 no.11
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    • pp.627-634
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    • 2000
  • In this paper, new micromachined tunble bandpass filters for multi-band millimeter-wave telecommunication systems are proposed. Two types of mm-wave tunable filters are fabricated using micromachning technology and the responses of the filters are measured. One is two-pole lumped elements filter and the other two-pole resonators filter. Frequency tunability of the filter is achieved by changing the gap between a common CPW ground plate and the movable cantilever beam connected to the transmission line with the controllable renge of 2.5${\mu}m$. The deflection of cantilever beam is measured with the applied DC voltage. With the applied bias voltage from 0 to 50 V, the fabricated filters show 0.6 GHz(2.3%) at 26.6 GHz, and 0.8 GHz(2.5%) at 32 GHz center frequency shift for the lumped elements and resonators filter, respectively. The life time of the fabricated gold cantilever structure are tested.

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PIX: Partitioned Index for Keyword Search over XML Documents (PIX: XML문서 검색을 위한 색인 분할 기법)

  • Lee Hongrae;Lee Hyungdong;Yoo Sangwon;Kim Hyoung-Joo
    • Journal of KIISE:Databases
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    • v.31 no.6
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    • pp.710-720
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    • 2004
  • As XML documents have much richer information than plain texts, we can perform very elaborated, fine-grained search which was difficult in past years. However, as the cost of finer grained element level search is very high, the processing overhead has become a new challenge. We propose an inverted index structure called PIX, which reduces the number of elements processed by partitioning elements according to their match potentiality. We choose a base level and partition elements according to whether they have possibility of having a common ancestor higher than the level. We also propose partition merging technique by which we can get same results as unpartitioned case. Our experimental results show that the index partitioning strategy can reduce processing time considerably.

Design Properties of Bags of Famous Overseas Brands in Fashion Collections (컬렉션에서 보여진 해외 유명 브랜드 Bag 디자인 특성)

  • Lee, Won-Jung;Lee, Kyoung-Hee
    • Journal of the Korean Society of Clothing and Textiles
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    • v.32 no.10
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    • pp.1487-1496
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    • 2008
  • The purpose of this study is to provide guidance to plan bag design with an analysis of design properties of bags of famous overseas brands in a pret-a-porter fashion collection. For this purpose, the pret-a-porter fashion collection from 2001 S/S to 2005 F/W is divided into the following sectors: brands, years, and seasons, focusing on the design elements. The reference for the actual study was 773 pictures of bags that were collected of Chanel, Louis Vuitton, Gucci, Christian Dior, Prada, Fendi and Etro collections. The results of this study are as follows. With regard to the character of the bag design classified by brand, the design property was embossed with all design elements. Therefore, we can use design elements to express design property, like bag design of famous overseas brands. With regard to the changes of bag design year by year, it was changed with almost all of the design elements. Therefore, it is noted that bag design do well to reflect the fashion trends of the year with almost all design elements. With regard to design properties of seasonal bags, bag design properties which are popular in the S/S season are circle form, small size, lively colors and so on. On the other hand, bag design properties which are popular in the F/W season are common form, large size, quiet colors and so on. Therefore, it is noted that bag design do well to reflect the seasonal trends.

Analysis of Elements Related to Information Culture Literacy in Overseas Informatics Curriculums (해외 정보 교육과정에서 정보문화소양 관련 내용 요소 분석)

  • Yang, HyeJi;Kim, JaMee;Lee, WonGyu
    • The Journal of Korean Association of Computer Education
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    • v.21 no.1
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    • pp.1-10
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    • 2018
  • Korea shifted the focus to competency-based curriculums in the revised national curriculum of 2015, and emphasized training creative convergence talents through informatics education. The informatics education curriculum included information culture literacy as a core competence so that the learners can gain knowledge of information technology-based information ethics and make ethical judgment and practice ethics. This study analyzed the elements related to information culture literacy in the informatics curriculums of the US, the UK, India, Japan, Australia and Germany for the purpose of providing implications with regard to the composition of elements that can foster information culture literacy. According to the analysis results, first, the term information culture literacy was included only in the informatics education curriculum of Korea. Second, the elements common to all countries are (personal) information protection, information security and copyright. Third, Korea's information society and career, India's avoidance of injuries, Germany's protection of health and environment were found only in the curriculums of respective countries. This study is significant in that it provided the orientation of improving the elements for fostering information culture literacy based on the results of analyzing overseas informatics curriculums.

The Development of Standard and Disposition for Effective Job Performance of School Food Service Dietician (학교급식 전담직원의 표준 직무모델 개발에 관한 연구)

  • 이영은;양일선;차진아;유태용
    • Journal of Nutrition and Health
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    • v.35 no.7
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    • pp.800-817
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    • 2002
  • It is not stipulated concretely in the Food Sanitation Act what the standardized school food service dieticians indices and the dietician's duties and task elements should be. Therefore, this study was required. The specific purposes of this study were : a) to define the school food service dietician's duties and task elements, b) to estimate the performance frequency and work hours of the dietician's duties and task elements c) to investigate the job specification of the dietician over school food services, d) to develop the standardized indices of the dietician needed in school food service operation. For this study, school food service dietician's work functions were defined in 10 duties and 60 task elements based on the studies precedented and literature review and pilot test process. This study was conducted in school food service systems nationwide using written questionnaire and interview with the official in charge and delphi technique. The questionnaires were mailed to the dieticians of three types of school food service systems. Of the 660 schools that participated in this study, the 624 responses were selected for analysis. Statistical analyses were performed with SAS/Win 6.12 program so as to provide a descriptive statistics, T-test, ANOVA. The main results of this study could be summarized as follows: A characteristic common to all the school food service systems was that 'cooking and distribution management' took the longest hours of work, while 'nutrition education' took the shortest hours of work. The standardized index of dietician over school food service was one person in conventional system independently of the number of meals per day. In the commissary system, according to the numbers of meals served per day, it was 0.95-1.38 persons and 1.27-1.55 persons and 1.40-1.91 persons. In joint management system, the standardized index was 1.03-1.42 persons in case of serving less than 700 meals per day.

Comparative Analysis of the Correlation Between Local Meteorological Elements and the Concentration of Airborne Fungi in the Beopjusa and Seonamsa Temples

  • Kim, Myoung Nam;Lim, Bo A;Hong, Jin Young;Lee, Jeung Min;Park, Ji Hee;Jeong, So Young
    • Journal of Conservation Science
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    • v.34 no.4
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    • pp.283-293
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    • 2018
  • This study involved a comparative analysis of the correlation between meteorological elements and the concentration of airborne fungi(CFU) in relation to biological damage to two temples on piedmonts, which is a cultural heritage building. The work compared Beopjusa temple in Boeun(Chungcheongbuk-do Province) and Seonamsa temple in Suncheon(Jeollanam-do Province). Twelve meteorological elements and the CFU were measured and the Pearson correlation analysis was used to determine the degree of the relationship between them. The results showed that Beopjusa temple had high wind speed, high total horizontal radiation, high evaporation, and large number of days with precipitation. Seonamsa temple had high air temperature, high relative humidity, high dew point temperature, high sea level pressure, high precipitation, and high CFU. The CFU at Beopjusa temple did not have a linear correlation with meteorological elements, but at Seonamsa temple it was highly positive correlated with the number of days with precipitation, relative humidity, and precipitation, and was highly negative correlated with total horizontal radiation. In addition, Beopju and Seonamsa temple had a common linear relationship between factors not affected by the topographical conditions, and had a individual linear correlation between factors affected by the topographical conditions.

Analysis of the Physical Characteristics and Tranquility of the Valley in Gangwon Province (강원지역 계곡의 물리적 특성 및 고요함 분석)

  • Kim, Kyoung-Nam;Han, Gab-Soo
    • Journal of Forest and Environmental Science
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    • v.30 no.1
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    • pp.152-160
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    • 2014
  • The purpose of this study is to investigate and analyze the physical characteristics and tranquility of the valleys located in Gangwon region. For this study we analyzed the field survey data 135 valleys using GIS. The elements for measurement of tranquility were divided into visual elements including terrain, objects, forest, water and auditory elements including noise. These elements were divided further into positive and negative factors. The weight of each element and item was calculated by applying the AHP method. The results of this study are as follows. The length of the valley ranged from 126 m to 17 km, and the elevation ranged from 40 m to 1,800 m. Type of mixed forest was common in the valleys. The depth of the water was over 20 cm in 83% of the total area and most of the water was in good condition in visual quality. Regarding the positive factors of tranquility, the weighted scores of the objects, waterfall sounds and visual transparence of the water were of relatively high value. Relatively high values were also shown in closed and curved topography in the landform, forest type and natural forests. In the negative factors, the weights of the objects and forest elements had high values. Within the facility groups, facility of the river produced a considerable negative. After applying the index of tranquility, the natural physical attributes affected the tranquility value, more than the manmade structures to a much greater degree.