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A Case Study of Developing an e-Learning Teacher Training Program for Promoting Quality e-Learning Teaching (e-Learning 질향상을 위한 교수자 연수과정 개발사례)

  • Shin, So Young;Chung, Ae Kyung;Hong, Yu Na
    • The Journal of Korean Association of Computer Education
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    • v.9 no.5
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    • pp.65-75
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    • 2006
  • With rapid developments in technology and communications' many teachers are increasingly exposed to a variety of e-Learning environments that they must develop new competencies and skills to be successful e-Learning teachers. The purpose of this training program, sponsored by HRD Korea (Human Resources Development Services of Korea), is to provide e-Learning teachers with meaningful opportunities for promoting quality e-Learning teaching. This program covers pedagogical issues as well as technical and practical aspects of the e-Learning environments. Before starting the program development the survey and the current e-Learning program assessments were conducted. The training program is divided into three modules as follows: 1) theoretical issues of e-Learning, 2) development of e-Learning contents, and 3) implementation of e-Learning environments. These three modules can be selectively reorganized in response to teacher requirements and demands. ln each module, there are five subtopics that include creative teaching and interaction strategies for promoting the effective e-Learning teaching. ln conclusion, teachers will gain greater understanding of teacher roles in e-Learning instruction, more flexibility in teaching jobs, increased confidence and knowledge to act as e-Learning facilitators through the completion of this training program.

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A Study on Key Successful Factors of Cruise Port (크루즈 항만의 성공요인에 관한 연구)

  • Lee, Choong Bae;Lee, Jongkoo;Noh, Jinho
    • Journal of Korea Port Economic Association
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    • v.29 no.2
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    • pp.81-111
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    • 2013
  • Along with a general growth in living standards there has been a corresponding increase in the demand for tourism. Cruise based tourism, in particular, has become one of the most dynamic and dramatic growth sectors in the tourism industry over the last 20 years, including in the Northeast Asian region. In line with the growth of passenger numbers, the number of cruise ships and their berth capacities has increased significantly since the late 1970s. Korea, as a peninsular nation, has also experienced a rapid growth in cruise passenger numbers. The national economy has greatly benefited from this as the industry acts as an income generator, creating new jobs and potential investments and in developing local tourism. Ports play an important role in the development of any national cruise industry, providing not only ship berths but supply and bunkering facilities and a gateway to local tourism opportunities. The selection of the optimal cruise port location is an important and complex problem because the decision makers have to consider a large number of criteria which have a significant effect on the economy, environment, human life, and society. This paper investigates those criteria that are significant in developing a successful cruise port by employing a questionnaire survey of major cruise port users - shipping companies and tourism companies. The ports, surveyed in this study are Busan, Incheon, Yeosu and Jeju. All have been identified as important potential cruise ports in the Korean Government's 'The 3rd Port Basic Plan (2011-2020)'.

Long-term Changes of Fish Ecological Characteristics on the Gwanpyeong Stream Development and the Necropsy-based Health Assessments (관평천 개발에 따른 장기간 어류 생태적 특성 변화 및 해부학적 건강도 평가)

  • Oh, Ja Yun;Lee, Sang-Jae;An, Kwang-Guk
    • Korean Journal of Environment and Ecology
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    • v.34 no.4
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    • pp.282-293
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    • 2020
  • This study investigated a long-term variation trend of water quality, fish compositions, and ecological health conditions in the Gwanpyeong stream located in the nearby Daejeon metropolitan city to understand the impact of urban development projects on the aquatic ecosystem. The sampling was made in four surveys (2009, 2010, 2016, 2019) before and after urbanization. The urban development was conducted in 2008, resulting in the stream's ecological disturbance, and the stream restoration was conducted in 2012. Thus, stream monitoring was conducted to analyze the ecological trends before and after the restoration. The multi-metric models for Fish Assessment Index(FAI) and necropsy-based Health Assessment Index(HAI) were applied in the fish community and organ-level, respectively, to assess the ecological health of the stream. Minimum turbidity and chlorophyll-a(Chl-a) occurred in the mid-stream(St. 2), and this was probably due to rapid current velocity in the riffle zone. We collected 18 fish species, and the dominant species was Zacco platypus (40.6%). In 2016 immediately after the stream restoration, the relative proportions of sensitive species and insectivore species were the highest along with highest values in the species diversity and species richness index, resulting in the best condition in the ecological health, based on FAI model values. However, the ecological health, based on the FAI, became worse in the latest survey conducted in 2019. The analysis of the HAI model based on the organ-level approach showed skin erosion in the fish of upper stream, kidney defects in downstream, and the liver and gill defects observed in all sites, indicating that the anatomical health was also affected.

A study on the classification of body types for female junior high school students - Focused on the development of school uniforms - (여자 중학생의 체형분류에 관한 연구 - 교복패턴개발을 중심으로 -)

  • Shin, Jang-Hee
    • Journal of the Korea Fashion and Costume Design Association
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    • v.22 no.3
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    • pp.99-110
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    • 2020
  • In terms of junior high school girls' growth patterns during early adolescence, are unlike childhood when relatively balanced growth patterns are found and high school years in which the normal adult body type is nearly reached, growth patterns displayed are imbalanced and rapid. In fact, diverse size changes by body part growth occur significantly different from individual to individual. Therefore, it has been hard for junior high school students to select their proper size when buying school uniforms. This study attempted to acquire basic data needed to address adolescent body shapes and school uniform patterns for junior high school girls, using the data from the 7th Size Korea Survey (2015). Specifically, it provides basic data for the development of school uniform patterns through the classification of their body into particular types, After extracting body shape components and a cluster analysis using ANOVA. According to a factor analysis conducted to determine body shape components, six factors were obtained: Factor 1: bulk and horizontal size, Factor 2: body height and length, Factor 3: shoulder shape and length, Factor 4: shape of upper body, Factor 5: lower drop, Factor 6: upper drop with a variance of 81.46%. To classify junior high school girls' body shape and determine their characteristics, a cluster analysis was performed with the variables obtained using factor analysis. Body shape was classified into three different types: Type 1 accounted for 30.7%. This was a short, slender body with the smallest bulk, size, and upper drop. Type 2 accounted for 24.9%. This was the largest in bulk and horizontal size and highest and length as well. Type 3 accounted for 44.5%. This type was close to average in terms of horizontal size, length and height, and high drop values. To develop school uniforms with great accuracy and body fit for junior high school students, there should be further studies on changes in body shape and their causes. The study results can serve as basic data for comparing branded school uniform patterns for junior high school girls and developing school uniform patterns based on body shape, using 3D virtual clothing simulations.

Analysis of Traffic Safety Facilities in Pedestrian Protection Area: Focusing on Variable Speed Limit Signs and Beacons (보행자 보호구역의 교통안전시설물 효과분석: 가변형속도제한표지와 비콘 중심으로)

  • Kim, Joong Hyo;Ha, Dong Ik;Park, Min Chul;Song, Won Chul;Ha, Tae Jun
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.16 no.5
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    • pp.121-133
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    • 2017
  • Since the mid 1990s, policies have been actively promoted to improve safety and pedestrian environment around the school such as the improvement of School zone. However, the prevention of accidents was not effective because it did not extend to the school road where the main transportation route for children's commuting takes place. In addition, due to the rapid increase of automobiles, trunk road traffic in the peak time bypasses the back roads, which threatens children's safety and the environment by invading the school area, which is the main living space of children. In this study, the characteristics of domestic children's traffic accidents were investigated and the problems were analyzed by conducting a field survey on Yeouido Secondary School in Seoul and Unjung Elementary School in Gyeonggi Province. In addition, Variable speed limit signs and Beacons were installed in the pedestrian road of comunity including School zone, and the effects of facilities on the speed of vehicles were analyzed. As a result of the analysis, the Variable speed limit sign showed a deceleration effect of about 8.3km/h, and the Beacon showed a phenomenon in which the traveling speed of 0.8km/h increased only slightly. In addition, the traffic violation rate of passenger cars, buses, and lorries decreased by about 3% as a result of investigating the number of traffic violation vehicles before and after installation.

Studies on the Age and Growth fo Sun and Moon Scallop, Amusium japonicum japonicum (GMELIN) (해가리비, Amusium japonicum japonicum (GMELIN)의 연령과 성장에 관한 연구)

  • Son Pal-Won;Ha Dong-Soo;Rho Sum;Chang Dae-Soo
    • Journal of Aquaculture
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    • v.9 no.4
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    • pp.409-417
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    • 1996
  • Age, annual growth pattern, and other ecologically important observations are reporting from the analysis of annual growth annuli of the sun and moon scallop, Amusium japonicum. Field survey made from 1993 to 1994 indicated that the sun and moon scallops are mostly distributed along the southern coast of Cheju-do, especially around the Sogwipo area. They inhabit on muddy sand bottom, at depth between 30 and 40 m where water temperature varies from 14 to $23^{\circ}C$ annually. The gonadal analysis indicated that the spawning mostly occurs during October and December and they exhibit multiple spawning peaks. The formation of annual growth annuli was found to be related with their spawning period. The shell growth on A. japonium japonicum appeared that their shell growth rate is comparatively faster than that of other scallops : 1. japonium japonicum reaches 6.28 cm in shell hight at the first year and 9.07 cm at the second year. The growth rate of gonadal somatic tissue was also found to be faster than growth rates of other scallops. One year old scallops weigh about 18.8 g, two and three year old scallops weigh 60 and 102.4 g. Based upon these observations, it is concluded that A. japonium japonicum can be a valuable species for aquaculture development due to their rapid growth.

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A Study on the Efficient Management Plan of Water Distribution Reservoirs Facility Using 3D Geospatial Information (3D 공간정보를 이용한 배수지시설물의 효율적인 관리방안에 관한 연구)

  • Jung, In Hun;Ro, Young Suk;Choi, Yun Soo;Woo, Sang Yoon;Kim, Chong Mun
    • Spatial Information Research
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    • v.20 no.6
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    • pp.109-118
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    • 2012
  • Recent increasement of metropolitan infrastructure due to rapid expansion and development of urban areas which caused complexity and diversification of management system demands higher cost and effort to manage and maintain the facilities. The reason why it requires continuous and systematic management by national government is that the infrastructure facilities takes important role as it is directly related to public's living. Thus this study suggests an efficient management plan for increasement of work efficiency, cost reduction, and time saving by introducing 3D geospatial information system for water distribution reservoirs which is managed by the Office of Waterworks Seoul Metropolitan Government. This study evaluates and quantifies the range of work improvement using the 3D GIS technology through carrying out a survey targeting people in charge of the Office of Waterworks Seoul Metropolitan Government and other 8 offices. From the result of the research, applying the 3D-GIS improves by 90.32%, 93.55%, and 91.61% in the area of work efficiency, cost reduction, and time saving respectively. Consequently, using 3D GIS in future management of infrastructure could be used as a way of producing base data which supports administrative decision making through statistical and case analysis based on continuous data management. Also it would contribute to improving work efficiency by improving management system through preventing data omission.

Development and Formative Evaluation of Web-based Contents for Engineering Mathematics Based on a Computer Algebra System (컴퓨터 대수 시스템 기반의 이공계 수학용 웹 콘텐츠 개발과 형성 평가)

  • Jun, Young-Cook;Kim, Jin-Young;Kwon, Sun-Kweol;Heo, Hee-Ok
    • Journal of the Korean School Mathematics Society
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    • v.10 no.1
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    • pp.27-43
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    • 2007
  • The aim of this paper is to develop a web-based learning system in order to motivate college students in the area of science and engineering to study college calculus. We designed and developed web-based contents, named MathBooster, using Mathematica, webMathematica and phpMath taking advantages of rapid computation and symbolic computation. The features of MathBooster consists of four parts: graphical representation of calculus concepts, textual illustrations of conceptual understanding, example-based step-by-step learning with phpMath, and quizzes with diagnostic feedback. After the MathBooster was practiced with engineering students, the formative evaluation was conducted with survey items composed in four categories: user responses, screen layout, practicing examples and diagnostic feedback in solving quizzes. The overall level of user satisfaction was statistically measured using SPSS. Those results indicate which parts of MathBooster are needed for future enhancement.

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PDA Transmission of Medical Images by CDMA (CDMA에 의한 의료영상의 PDA전송)

  • Lee, Myong-Ho;Lim, Jae-Dong;Ahn, Bung-Ju;Lee, Hwun-Jae;Lee, Sang-Bock
    • Journal of the Korean Society of Radiology
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    • v.1 no.2
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    • pp.13-22
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    • 2007
  • The purpose of this study was to survey a development of the wireless transmission system of medical images for ubiquitous medicine. There have been many changes in medical equipments and medical record medical treatment and medical record within hospital and PACS(Picture Archiving Communication System) which is picture management system for patients can be typical cases. It is difficult to use these automated medical systems unless they are within hospital and in case of rapid image reading in the emergency cases or in absence of doctor, it is difficult to perform it immediately. The present study implemented an image transmission system using CDMA connection so that images in the server can be viewed at any time and in any place. Remote wireless diagnosis based on medical images using PDA is applicable to medical areas that require mobility, and the use of PDA can be an ideal alternative for point of care. The use of PDA enables prompt and accurate access to digital medical images, which in turn reduces medical accidents and improves the quality of medical services through high productivity and efficiency of medical practitioners' works. It also enables quick response to patients' demands and high-quality medical services and, consequently, patients' high satisfaction.

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Spread of Bacterial Canker of Kiwifruit by Secondary Infection of Pseudomonas syringae pv. actinidiae Biovar 3 in Gyeongnam in 2016 (2016년 경남지역 Pseudomonas syringae pv. actinidiae Biovar 3의 2차감염에 의한 키위 궤양병의 확산)

  • Kim, Gyoung Hee;Choi, Eu Ddeum;Lee, Young Sun;Jung, Jae Sung;Koh, Young Jin
    • Research in Plant Disease
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    • v.22 no.4
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    • pp.276-283
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    • 2016
  • Bacterial canker caused by Pseudomonas syringae pv. actinidiae (Psa) occurred at 202 kiwifruit orchards for the survey period of 2013-2016, of which Psa biovar 2 (Psa2) and Psa biovar 3 (Psa3) were detected at 73 and 129 kiwifruit orchards, respectively. The number of kiwifruit orchards infected by Psa3 in 2016 increased nearly two times compared to 2015. Psa3 was detected from all the kiwifruit cultivars except some kiwiberry cultivars growing in Korea. Yellow-fleshed cultivars Hort16A and Jecy-gold and red-fleshed cultivar Hongyang were highly susceptible to Psa3. Our epidemiological and random amplification of polymorphic DNA analyses indicated that the first Psa3 incidence on Hongyang orchard in Sacheon, Gyoungnam might result from an introduction of Psa3-contaminated pollens from China for artificial pollination in 2014 and recent outbreaks of Psa3 in Sacheon and Goseong, Gyoungnam in 2016 might be due to rapid spread of bacterial canker by secondary infection of Psa3 from Hongyang orchard to neighboring Jecy-gold and Hayward orchards.