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Comparison of essential oils and lignans compositions from pulp and seed of Omija (Schisandra chinensis) berry (오미자(Schisandra chinensis) 열매의 과육과 씨에서 정유 및 리그난 성분 비교)

  • Mi-Sun Kim;Ye Seul Kwon;Hyun Jin Choi;Young-Hoi Kim;Han-Seok Choi
    • Food Science and Preservation
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    • v.31 no.4
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    • pp.623-632
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    • 2024
  • Fully ripe Omija (Schisandra chinensis Baillon) berry has been used for medicinal and edible purposes for a long time due to its various physiological activities. The seeds of Omija fruit are produced during the processing of the fruit, but are often discarded in the food industry. To increase the utilization of Omija seeds, this study investigated the differences in essential oil and lignan compositions between the pulp and seed. The yield of essential oil in whole berries was 1.33% based on dry weight, 0.91% in the pulp, and 2.65% in the seed, respectively. A total of 62 constituents were identified by GC and GC-MS analysis from the oils of the two parts. The major constituents were sesquiterpenes, such as α-ylangene, cuparene, alloaromadendrene, cis-lanceol, β-himachalene, and nootkatone. The content of these ingredients was higher in the seed than in the pulp. The most abundant lignan compounds in the berry were schizandrin, followed by γ-schizandrin, schizandrin A, and schizandrol B. The content of the four lignans in the seed was significantly higher than in the pulp. The seeds of Omija have higher contents of essential oils and lignan compounds compared to the pulp, making it necessary to explore approaches for utilizing them as food ingredients.

A Study on the Improvement of Port Security Function in Busan Port - Target of Port facility security costs collection - (부산항 항만보안 기능 개선 연구 -항만시설보안료 징수대상을 중심으로-)

  • Kim, Seong-Hwan;Lee, Jeong-Min;Kim, Yul-Seong
    • Journal of Korea Port Economic Association
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    • v.39 no.4
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    • pp.127-145
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    • 2023
  • As the importance of strengthening port security is increasing, it is necessary to conduct a perceptual study on port facility users who pay for port security services first. This study aims to identify improvements in the port security function of Busan Port and contribute to the future development of port security in Korea. A total of 125 questionnaires were collected from port facility security fee collectors at Busan Port. Based on the collected data, exploratory factor analysis, traditional IPA, and modified IPA were conducted. In conclusion, first, the physical function of port security is the most important and should be continuously maintained and strengthened. Second, improving the professionalism of port security personnel is most urgent, and the port security education system needs to be improved. Finally, it is necessary to gradually develop the port security information service function in consideration of future development possibilities.

The Affective Impact of Citizen Archival Activities: Toward a Conceptual and Analytical Framework (시민 기록활동의 정동적 영향: 개념과 분석 방안을 중심으로)

  • Eunhee Bae;Moon-Won Seol
    • Journal of Korean Society of Archives and Records Management
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    • v.24 no.3
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    • pp.65-84
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    • 2024
  • Since the 2000s, there has been growing interest in community archival research in the West, and in Korea, projects that support citizen or resident participation in archival activities have also been increasing. With the role of community members as producers of records having gained importance in Korea, it has become necessary to examine the affective approach currently discussed in archival studies, focusing on the impact of "archival activities" on individual citizens. Unlike emotion, which is a personal and subjective experience, affect is characterized by "a sense shared based on relationships" and involves the concept of transformation of being (affection). This study aims to explore a method for analyzing the "affective impact applicable to citizen archival activities," an area that has not been previously addressed. To this end, the study reviews the meaning and concept of citizen archival activities and their development in Korea, focusing on the UCLA study (2018) and Brophy's (2005) approach to analyzing the affective impact of community archives to explore methodologies. It also explores the integration of the concept of "partyhood" to better reflect the characteristics of citizen archival activities. Based on these findings, this study proposes a conceptual model for analyzing the affective impact of citizen archival activities on recorders in Korea.

Exploring the Priorities of Housing Needs to Address Safety Inequality and Enhance Settlement Stability for Young Adults: Focusing on Regional Discrimination (Stigma) or Gender Difference (Deficiency Needs) (청년주거의 안전 불평등 해소 및 정주성 제고를 위한 주거 욕구 우선순위 탐색: 지역차별(낙인효과)과 성별(결핍욕구)을 중심으로)

  • Gim, Tae-Hyoung Tommy;Lee, Jiwon;Kim, Jiyeon
    • Journal of the Korean Regional Science Association
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    • v.40 no.3
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    • pp.3-21
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    • 2024
  • A safe residential environment enhances the quality of human life and promotes community development through self-actualization. It significantly affects regional stability by influencing the physical and psychological environment necessary to satisfy basic needs, providing a sense of security and alleviating anxiety. Safety is a major housing need; however, current housing policies tend to focus predominantly on housing supply. This emphasis limits the fulfillment of higher-level needs due to poor housing conditions and housing cost burdens faced by young households. Therefore, this study aims to identify areas affected by the stigma effect by analyzing the discrepancy between perceived crime risk and actual crime occurrence among single-person young households. The study compares these stigmatized areas with regions where the perceived crime risk is lower than the actual crime occurrence to identify differences in housing needs satisfaction and to prioritize policy interventions. Additionally, the study examines differences in housing needs satisfaction and importance based on gender to inform policy priorities. By considering the stigma effect on regional housing needs and gender-specific deficiencies, this study provides significant policy implications.

Path Analysis on the Effects of College student's Grit in Liberal Arts Sports Classes on Resilience of student and Satisfaction on College Life (사립대학교에서 교양 체육 수업을 수강한 대학생의 회복탄력성이 대학생활 만족도 및 그릿에 미치는 영향에 대한 경로분석)

  • Young-Jun Lee
    • Journal of the Korean Applied Science and Technology
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    • v.41 no.4
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    • pp.995-1007
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    • 2024
  • The purpose of this study is to structurally analyze the effect of resilience of college students who took liberal arts and sports classes at private universities on college life satisfaction and grit. For this study, we conducted an online survey of 283 non-sports college students who took liberal arts and physical education classes. In order to process the data of this study, the responses of the questionnaire were converted into data, and statistical programs SPSS 23.0 and AMOS 21.0 were used to analyze it. In SPSS 23.0, frequency analysis, reliability analysis, and correlation analysis were performed. Meanwhile, with AMOS 21.0, confirmatory factor analysis and structural equation model analysis were performed to determine the statistical fit of the research model, and values such as CFI (complementary fit index), Tucker-lewis index (TLI), and RMSEA (root mean square error of approach) derived in this process were reviewed. First, Model 1 showed statistically significant results in the effect of resilience of college students who took liberal arts sports on college life satisfaction and college life satisfaction on Grit's continuity of interest. Second, Model 2 showed statistically significant results in the effect of resilience of college students who took liberal arts sports on college life satisfaction and college life satisfaction on grit's effort. It was found that there were statistically significant results in the effect of resilience of college students who took liberal arts sports on college life satisfaction and college life satisfaction on Grit's continued interest and effort.

A Study on Improving the Acceptability of Security Policies among Organizational Members: Based on the Health Belief Model (조직구성원의 보안정책 수용성 향상에 관한 연구: 건강신념모델을 바탕으로)

  • Boyoung Kim;Woojong Suh
    • Journal of Korea Society of Industrial Information Systems
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    • v.29 no.5
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    • pp.69-94
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    • 2024
  • In order to improve the security policy compliance performance of an organization, it is crucial for organizational members to have a strong intention to actively accept these policies. Accordingly, this study proposes a research model based on the Health Belief Model, a key theory in the field of health psychology, with the aim of seeking ways to enhance the acceptability of security policies among organizational members. Data were collected through surveys and analyzed using statistical methods. The results of the study revealed that the perceived security threats and the perception of support for security policy compliance at the organizational level significantly influence the acceptance of security policies through the mediating role of perceived benefits from security policy compliance. Additionally, the study demonstrated that the perceived burden of effort and work disruption associated with complying with security policies, i.e., perceived barriers, has a significant negative impact on the acceptance of security policies. This study holds academic significance as it presents a model that effectively analyzes the cognitive mechanisms influencing the acceptance of security policies by applying the Health Belief Model, originally rooted in healthcare. The analysis results and various implications discussed in this study are expected to provide useful information and insights for developing strategies to enhance the acceptance of security policies among organizational members in the future.

A Case Study(II) on Development and Application of 'Literature-Art-Science' Integrated Education Programs ('문학-미술-과학' 융합교육 프로그램의 개발 및 적용 사례 연구(II))

  • Choi, Byung Kil
    • Korea Science and Art Forum
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    • v.32
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    • pp.319-334
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    • 2018
  • This research is a case study to make sure the enhancement of students' imagination and creativity through developing and applying the Literature-Art-Science Integrated Education Program. Its research object was totally 25 persons of 29 students of the 1st to the 4 th Grades from Gunsan Sulsan Elementary School. Its research period lasted for 4 months from September to December, 2017, and I, as the research place, used the art room at Gunsan Sulsan Elementary School. The programs were totally 10 sessions with a unit of 1 session per each grade for 2 hours from 1:00 to 3:00 in the afternoon from Monday through Friday. I fixed ten themes of this program-eight plane modeling, and two solid modeling, and finished the work of storytelling during summer vacation. And I arranged their levels as low:middle:high(3:5:2) ones. The former was 'A Film of Monster Gorilla'(L), 'Learning the Spirit of Gyeongju Choi's Family'(M), 'A Tale of My Friend Made of Natural Materials'(L), 'The Reading of My Dream'(M), 'Gathering the Objects in My Mobile'(M), 'A Mock Trial of Marrying Off'(M), 'Painting My Favorite Children's Poem'(H), and 'Painting My Favorite Children's Song'(H), and the latter was 'Seeking for a Bluebird in My Mind'(L), and 'Making My Cherished Object' (M). Then I used the unique art expression technique per each theme, which were in sequence marbling, Korean paper art, combine painting, collage, imaginary painting, imaginary painting, play dough art, imaginary painting techniques. And I delivered to the students the scientific knowledge in terms of growing or manufacturing processes of materials used for making artworks. Prior to and after the processing this program, I surveyed about the students' ability of integrated thinking and emotional experience by 'Figure B Type' and 'Figure A Type' of The Torrance Tests of Creative Thinking, and took statistics with the resultant data. And I executed a paired t-test in order to verify the significance of mean difference in the result of investigation with those data. From the analyzed result according to the elements of creativity and the mean quotients of creativity, there showed a significant difference (t=3.47, p<.01) in 'fluency', and also a significant difference(t=3.59, p<.01) in 'creativity.' Judging from the statistic values of two fields such as the student's ability of integrated thinking and emotional experience, I estimate that over the majority of the students showed the enhancement in self-confident creative expression as well as higher interest and concern through this program. The result that I arranged and analyzed the making process of artworks, the photos of the resultant, etc. as such is as follows : Firstly, from this program being proceeded as art-centered STEAM class, the student's systematic problem-solving ability was improved in his ability of integrated thinking to transform the literary contents into artistic one. Secondly, the student obtained the emotional experience such as interest in the class, self-confidence, intellectual satisfaction, self-fulfillment, etc. through art-centered STEAM class using ten art expression techniques. Thirdly, the student's mind willing to cooperate, communicate with his friends, and care for them was ripened in the process of problem-solving. Fourth, the student's self-confidence was further instilled when presenting famous artists and their artworks in the introduction and finale of ten art expression techniques. Likewise, the statistic values on the fields of student's ability of integrated thinking and emotional experience illustrate that over the majority of the students showed improvement in the ability of creative expression with confidence as well as higher interest and concern upon this program.

Marine Geophysical Constraints on the Origin and Evolution of Ulleung Basin and the Seamounts in the East Sea (울릉분지와 동해 해산의 기원과 발달과정에 대한 해양지구물리학적 연구)

  • Kim Jinho;Park Soo-chul;Kang Moo-hee;Kim Kyong-O;Han Hyun-chul
    • Economic and Environmental Geology
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    • v.38 no.6 s.175
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    • pp.643-656
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    • 2005
  • The East Sea, a marginal sea or back-arc basin, consists of Japan Basin, Yamato Basin, and Ulleung Basin and is surrounded by the Pacific Plate and Philippine Sea Plate. Ulleung Basin locates in the southwestern part of the East Sea and shows the depth of 1,500 m in average and 2,500 m in maximum, connecting to the Japan Basin along 2,000 m contour. The slope of the seafloor is greater in the western side of the basin than in the southern and the eastern side. The crustal thickness of the Ulleung Basin from the OBS tends to get thicker toward the north and the west side and the sediment thickness of the Ulleung Basin is getting thicker toward the southeast side and reaches up to 12 km. The crustal type of the Ulleung Basin was variously suggested as like as a rifted continental crust, an extended continental crust, and an incipient oceanic trust. The origin of the crustal formation and the Ulleung Basin, however, is still controversial. Based on the bathymetry and gravtiy anomaly data for this study, the axis of the Ulleung Basin shows that the basin develops along the axis trending NW-SE direction and reveals a general symmetry of the bathymetry. And also the free-air gravity anomalies show a very similar pattern to the bathymetry of the basin. The sediment thickness is relatively thicker in the southeastern side of the basin than in the northwestern side. Although the crustal age of the Ulleung Basin is supposed to be younger than them of the Japan Basin and the Yamato Basin, the free-air gravity anomalies of the Ulleung Basin ranging -40 to 50 mGals are lower than the other basins, which suggests that the densities of crust and sediment of the Ulleng Basin are lower than the Japan Basin and the Yamato Basin.

A Study on An Integrated GEO/TES with Geothermal Heat Exchanger and Thermal Ice Storage (지중열 교환기와 빙축열조(Thermal Ice Storage)를 연계시킨 통합 지중열-빙축열조 시스템(Integrated GEO/TES))

  • Lohrenz ED.;Hahn Jeongsang;Han Hyuk Sang;Hahn Chan;Kim Hyoung Soo
    • Economic and Environmental Geology
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    • v.38 no.6 s.175
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    • pp.717-729
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    • 2005
  • Peak cooling load of large buildings is generally greater than their peak heating load. Internal and solar heat gains are used fur selection of adquate equipment in large building in cold winter climate like Canada and even Korea. The cost of geothermal heat exchanger to meet the cooling loads can increase the initial cost of ground source heat pump system to the extend less costly conventional system often chosen. Thermal ice storage system has been used for many years in Korea to reduce chiller capacity and shift Peak electrical time and demand. A distribution system designed to take advantage of heat extracted from the ice, and use of geothermal loop (geothermal heat exchanger) to heat as an alternate heat source and sink is well known to provide many benifits. The use of thermal energy storage (TES) reduces the heat pump capacity and peak cooling load needed in large building by as much as 40 to $60\%$ with less mechanical equipment and less space for mechanical room. Additionally TES can reduce the size and cost of the geothermal loop by 1/3 to 1/4 compared to ground coupled heat pump system that is designed to meet the peak heating and cooling load and also can eliminate difficuties of geothermal loop installation such as space requirements and thermal conditions of soil and rock at the urban area.

A Study on Establishment for Archival Management and Training of Archivists (기록관리학의 정립과 기록전문가 양성교육에 관한 연구)

  • Choe, Jung-Tai;Yoon, Song-Won
    • Journal of Korean Society of Archives and Records Management
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    • v.1 no.1
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    • pp.95-129
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    • 2001
  • The treatise is a follow-up thesis of "The Archival Management : destination of its education" published by The Research Institute for Korean Archives and Records in June 17, 2000, and it was written to secure its original temper of the "Archival Management" which has established at first as the domestic collegiate educational course. Presently, we are mixed up for interpretation of terminology by facing unfamiliar words: such as, Archives, Documents, Manuscripts, Records / Archival Management, Archival Preservation / Archivist, Archival Conservator, Manuscripts Curator and Record Manager. Also, tile treatise has confirmed scholars' various opinion about its education and curriculum not only domestic but overseas scholars, and examined realities and course of studies of 4 overseas countries, and also have purpose to pursue domestic universities' actual condition of curriculum and its reform measure. And since dispositon of Archivist and the professional organization of the Archivist was based on the Laws, therefore, establishment of an educational institution for Archival Management from now on will be expanded more and need to be accelerated. Accordingly, the universities that already established or to be established from now on, shall be needed educational quality and its contents to be ascended. Its concrete plan is as follows : (1) Now, disarranged archive and record words, and to make publish 'Glossary of Archives & Records' as soon as possible. (2) Remind the substance of the Record and Archival Management and its sphere again and need to be considered alteration of the studies' name. (3) There needs to establish the role and establishment of conception of Archivists. (4) Refer to the theory and practical educational method of overseas professional Archivist Scholars, but to be needed to develop the curriculum which is accorded with am tradition and way of thinking. (5) Confer for development of teaching materials and educational method jointly through 'Academic Society', and there needs reorganize the subject which is fit for each university's characteristics. (6) Recently, "Cultural Resources Studies" for research specialization which has established in Graduate School of Tokyo University was very useful to us. We also need to be considered such establishment of process.