• Title/Summary/Keyword: Nature Environment

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Petrochemical Characteristics of the Granites in the Jeomchon area (점촌일대에 분포하는 화강암류에 대한 암석화학적 연구)

  • 최원희;좌용주
    • The Journal of the Petrological Society of Korea
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    • v.7 no.1
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    • pp.37-52
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    • 1998
  • The granites in the Jeomchon area can be divided into hornblende biotite granite (Hbgr), deformed biotite granite (Dbgr), deformed pinkish biotite granite(Dpbgr), biotite granite (Btgr), and granite porphyry(Gp). These granites show metaluminous, 1-type and calc-alkaine characteristics from their whole-rock chemistry. Hbgr and Dbgr belong to ilmenite-series granitoids, but Gp to magnetite-series. Dpbgr and Btgr show the intermediate nature between ilmenite- and magnetite-series. Tectonic discriminations indicate that Hbgr and Dbgr were formed in active continental margin environment, whereas Dpbgr, Btgr, and Gp in post-orogenic and/or anorogenic rift-related environment. From the Harker diagrams major oxide contents of Hbgr and Dbgr show a continuous variation with $SiO_2$, indicating that they are genetically correlated with each other. On the other hand, any correlation of major oxides variation cannot be recognized among Dpbgr, Btgr and Gp. It seems like that Hbgr and Dbgr were derived from a same parent granitic magma, judging from their occurrence of outcrop, mineral composition as well as whole-rock chemistry. Variation trends of major oxide contents between Hbgr and Baegnok granodiorite are very similar and continuous. If the two granites were derived from a cogenetic magma, there exists a possibility that the granitic bodies had been separated by Btgr and Gp of Cretaceous age. Three stages of the granitic intrusions are understood in the Jeomchon area. After the intrusion of Hbgr and Dbgr during middle to late Paleozoic time, Dpbgr emplaced into the area next, and finally Btgr and Gp intruded during Cretaceous time. Tectonic movement accompanying shear and/or thrust deformation seems likely to have occurred bewteen the intrusions of Dpbgr and Btgr.

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A Study of the Key Factors and Expected Outcomes of Convergence Education using a Delphi Technique (융합교육 핵심요인과 기대효과에 대한 델파이 분석)

  • Cho, Eunbyul;Lee, Seon-Young;Shin, Jongho;Hong, Yoon-Jeong
    • Journal of Gifted/Talented Education
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    • v.25 no.1
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    • pp.37-58
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    • 2015
  • The purpose of this study was to investigate the characteristics of convergence education through the Delphi survey targeting 19 teaching professionals. The Delphi survey was completed three times, drawing key factors and expected outcomes which explain the characteristics of convergence education. The key factors of convergence education were classified as 'educational design', 'teachers' expertise' and 'educational environment'. Educational design focused on the qualitative characteristics of leaner's experience. Teachers' expertise was teacher's active and supportive roles in relationship with fellow teachers and learners. Educational environment was the psychological factors with which various subjects can realize convergence education. The expected outcomes were classified as 'learner's cognitive characteristics', 'leaner's affective characteristics', and 'teacher and educational system'. The expected outcomes of convergence education leads to psychological changes for learners to increase the advanced learning experiences and to pursue values of education itself. Compared to similar concepts, convergence education has some unique characteristics in which many of regular learners in educational settings and various topics are targeted. It also focuses on psychological factors of various subjects and qualitative natures of leaners' learning experience for the advanced learning. Especially, these results have significance in understanding the nature of convergence education, focusing on educational practices through teachers'perspectives.

Recovery Process of Forest Edge Formed by Clear-cutting Harvest in Korean Red Pine (Pinus densiflora) Forest in Gangwondo, South Korea (강원도 남부 지역에서 소나무림 벌채 후 형성된 숲 가장자리의 회복 과정)

  • Kim, Jun-Soo;Cho, Yong-Chan;Bae, Kwan-Ho
    • Journal of Korean Society of Forest Science
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    • v.106 no.1
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    • pp.1-9
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    • 2017
  • Forest harvest as large scale artificial disturbance makes edge environment in both clear-cutted and forested habitat. To clarify the development and recovery process of forest edge after disturbances is essential to understand vegetation responses and landscape level consequences such as edge-distance. In Korea, after clear-cutting, edge-related changes of environment and vegetation was not clarified yet. In Korean red pine (Pinus densiflora) forest, by applying space-for-time approach (sites with undisturbed and 1, 3, 10, 16 yr after cutting), the edge-related change of plant abundance and abiotic factors were determined for 20 line-transect (60 m) and 340 ($1m{\times}5m$) quadrats, and clarified depth and duration of the disturbance. Immediately after edge formation, within 15m form the edge, biotic and abiotic factors such as cover, richness, canopy openness, temperature and moisture content exhibited larger changes compared to forest interior. Plant abundance and abiotic variables were stabilized at the level of forest inside within 16 yr and 10 yr after edge creation, respectively. Woody (tree and shrub) species generally was showed larger increment with proximity to edge than did herb or graminoid species. In addition, negative interactions between woody and herbaceous species were detected during the period of forest edge closure. Our results suggested that depth of forest edge formed by clear-cutting of Korean red pine forest was at least from 15 m to 20 m and edge effect were likely sustained more than 16 years. As the first empirical study on edge-distance between two contrast habitats of clear-cutted and adjacent forest in South Korea, the analytical reality on landscape structure and habitat patches can be improved.

Development of Education and Training Programs and Job Analysis on 'Mechanical Facilities Maintenance Manager' Using DACUM (DACUM을 활용한 기계설비유지관리자 직무분석 및 교육훈련 프로그램 개발)

  • Oh, Chun Shik;Cho, Jeong Yoon;Jeong, Yousung;Song, Nakhyun
    • 대한공업교육학회지
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    • v.44 no.2
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    • pp.86-103
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    • 2019
  • The purpose of this study is to provide basic data on the development of education and training programs for training 'mechanical facilities maintenance manager'. To this end, the DACUM technique was used for job analysis and education and training programs were developed through expert consultation meetings. The job analysis was based on the 10-member DACUM Committee to derive the job definition, job model, job description, and task description of the 'mechanical facilities maintenance manager'. The main findings are as follows. First, the 'mechanical facilities maintenance manager' was defined as those who operate, inspect, diagnose, and repair mechanical facilities to provide the best performance and efficient operation management, provide a safe and pleasant environment, and perform energy saving and facility life extension tasks. Second, the duties of the 'mechanical facilities maintenance manager' analyzed in the job model consist of the comprehensive plan for operation of mechanical facilities, energy management of mechanical facilities, operation management of mechanical facilities, maintenance of mechanical facilities, safety environment management of mechanical facilities, and customer support management of mechanical facilities. Considering the nature and content of the duties, 4 to 11 tasks per duty were derived and a total of 33 tasks were presented as job model. Third, the curriculum for the 'mechanical facilities maintenance manager' was set up in two courses: Practice I for Mechanical Facilities Maintenance and Practice II for Mechanical Facilities Maintenance. Considerations and policy suggestions were presented when applying and implementing education and training programs based on the results of the research.

The Influence of Details on the Sense of Place in Islamic Gardens - Focusing on 'the Courtyard of the Lions' - (이슬람정원에서 디테일이 장소성에 미친 영향 -'사자의 중정'을 대상으로 -)

  • Yoon, Mi-Bang;Kim, Han-Bai
    • Journal of the Korean Institute of Landscape Architecture
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    • v.38 no.5
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    • pp.122-133
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    • 2010
  • Humans desire the achievement a of sense of unity between themselves and place to create an identity of place as a realization of his or her sense of belonging. Humans develop ideas from their culture and environment to be expressed physically within the landscape through symbols. Symbols are formed within a place through the structure of the space and, more visually, through the details. The purpose of this paper is to examine the structure of space and the details of 'the Courtyard of the lions' in the Alhambra and to study how the details influence the formation of the identity of place. This paper also compares the structure and details in terms of the meaning of symbols, design languages, cultural, social and historical background and the experience of the place. The structure of the space in 'the Courtyard of the Lions' represents Paradise in the Islamic religion a common theme in the composition of traditional Islamic gardens. The design languages expressed within the structure are order, balance, accent and enclosure; the inherit meanings of the structure are religion, the natural environment and way of life. The details tell of the ideology of Paradise, royalty, nature, and praise of God, while their design languages include physical and visual continuity, accent, variation, the feeling of movement, rhythm, and depth perception. The details also express the historical background of the Dynasty of Nasrid and the style of Mudejar. The name 'the Courtyard of the Lions' was taken from the detail of the lim figures, details within the landscape which are important in building an identity of place. This study demonstrates that the details at 'the Courtyard of the lions' achieved a sense of unity between man and place. In conclusion, details have immense influence in building of the identity of place.

A Study of the Development of Marine Tourism Destination Indicators Importance which Applies AHP (AHP를 활용한 해양관광지개발지표 중요도 연구)

  • Kim, Hye-Young;An, Hyung-Soon
    • Journal of the Korean association of regional geographers
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    • v.15 no.6
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    • pp.763-773
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    • 2009
  • This study is the basic data to design development directions and development standards of resources and facilities for establishing provision-oriented marine tourism development plans, and it aims to help develop provision-oriented marine tourism by drawing planning index and considering its priority necessary for provision-oriented marine tourism development. The findings of the study are as follows. As the result of analysis on four aspects, specific standards and plans for marine tourism development index, it showed environmental aspect, socio-cultural aspect, management aspect, and economic aspect in order. According to the result, the environmental aspect is considered important as the plan to solve problems working as inhibition factors instead of local development, due to local culture and environment disruption. Besides, as the result of iult of iuland priority of 13 items w of iure specific factors and specific plans, durability of resource use, iulroveand envisurrf rdings, receptive culacity, conservesidesand transmissidesnvicultures, and iulroveand ein the quality of life, stability of resource use, quality management of tourist attractions, competency intensificesidesof residents, income increase of residents, PR marketing, role of public sectors, increase in the local industry, and increase in employment were shown in order. Software-oriented plans should be made to preserve overall nature of local areas rather than hardware-oriented plans and development of environmental aspect that merely considers preventing environment destruction.

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A Study on the Performance Evaluation Index of Multi-Water Resources Connection and Continuous Utilization in Micro Water Grid (마이크로 워터 그리드에서 다중수원 연계·연속 활용 성능평가지표에 관한 연구)

  • Chae, Soo-Kwon;Lee, Sang-Hoon;Ah, Hong-Kyu
    • Journal of Environmental Impact Assessment
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    • v.28 no.6
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    • pp.556-567
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    • 2019
  • As the number of skyscrapers in micro water grid units such as green building and smart building is increasing in the world, the green building certification system is being implemented to solve problems such as increased demand for water resources and energy. However, researches on the use of sustainable water resources like water reuse and water conservation through linkage and continuous use of water resources, while the power and energy sectors are actively conducting R&D projects in the green building certification system on the micro water grid level. Therefore, this paper analyzes the characteristics and limitations of the water resources sector for the continuous utilization of multiple water sources in the green building certification system, due to the inadequate consideration of sustainability. Then investigates whether various water resources such as constants, nature, and alternative water resources are continuously used in and out of the green building or smart building and complex in the micro water grid unit to suggest evaluation methods and performance evaluation standards.

The stress experience of nurses who are reemployed after career interruption (경력 단절 후 재취업한 간호사의 스트레스 경험)

  • Soun, Eun-Jin;Eom, Jae-Hyeon;Nam, Eun-Sook;Chae, Young-Ran;Kil, Myung-Sook;Park, Eun-Ha
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.5
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    • pp.125-136
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    • 2016
  • The purpose of this study is to qualitatively examine the nature of the stress experience of nurses in reemployment after career interruption using a phenomenological method. The subjects were nurses who were reemployed after working in medical institutions and experiencing three years or more of career interruption. The collected data showed five categories of themes: "the gaps between reality and earlier expectations," "getting hurt because of the worsening relationship with younger superiors," "struggling to adapt oneself to the changing work environments," "getting exhausted as a supermom," and "struggling to survive as a professional." The findings suggest that career-interrupted nurses who are considering finding a new job should be educated to make decisions on where to work. They should be provided with the right information on the environments of hospitals and with educational programs before reemployment to establish their roles as professional nurses. In addition, it is important to increase the diversity and accessibility of retraining programs that can adapt to the changing healthcare environment. It is necessary to develop career break programs so that nurses can successfully adapt to reemployment, to promote professionalism in the work environment, and to look for ways that can inspire nurses who have experienced career interruption.

A Study about Assessment on Operation Program of Local Festivals (향토지역축제 운영프로그램 평가에 관한 연구)

  • Lee, Hee-Koung;Ahn, Deug-Soo
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.30 no.1
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    • pp.103-112
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    • 2012
  • This study aims at assessment of local festivals focused on analysis of operation program for local festivals held in Jeonbuk province. The subjects were 65 local festivals held in Jeonbuk in 2010 excluding festivals held in province, county, and town level, and those held with single purpose. Type of festivals were classified to type for residents' unity, tourism, industry, and special purpose type. The portion was industry type 36.9%, type for residents' unity 23.1% in the order. By theme, animal, plant, nature phenomenon, history, culture and tradition, special product, regional industry were classified - the portion was special product 36.9%, culture and tradition 24.6%, history 13.8%. Assessment of operation program was conducted with assessment indexes such as compliance with theme, uniqueness, diversity, effect of experience, size, educational effect, and entertainment. As a result, it appeared that because local festivals of Jeonbuk had high uniqueness, duplication of program between local festivals was very low and educational effect was comparatively high. On the other hand, because entertainment and effect of experience was very low, considerations of entertainment and effect of experience are necessary in planning of program.

Practical Quality Model for Measuring Service Performance in SOA (SOA 서비스 성능 측정을 위한 실용적 품질모델)

  • Oh, Sang-Hun;Choi, Si-Won;Kim, Soo-Dong
    • The KIPS Transactions:PartD
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    • v.15D no.2
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    • pp.235-246
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    • 2008
  • Service-Oriented Architecture (SOA) is emerging as an effective approach for developing applications by dynamically discovering and composing reusable services. Generally, the benefits of SOA are known as low-development cost, high agility, high scalability, business level reuse, etc. However, a representative problem for widely applying SOA is the performance problem. This is caused by the nature of SOA such as service deployment and execution in distributed environment, heterogeneity of service platforms, use of a standard message format, etc. Therefore, performance problem has to be overcome to effectively apply SOA, and service performance has to be measured precisely to analyze where and why the problem has occurred. Prerequisite for this is a definition of a quality model to effectively measure service performance. However, current works on service performance lacks in defining a practical and precise quality model for measuring performance which adequately addresses the execution environment and features of SOA. Hence, in this paper, we define a quality model which includes a set of practical metrics for measuring service performance and an effective technique to measure the value of the proposed metrics. In addition, we apply the metrics for Hotel Reservation Service System (HRSS) to show the practicability and usefulness of the proposed metrics.