• Journal of Wetlands Research
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• v.20 no.2
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• pp.124-130
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• 2018

This study was conducted to identify the characteristics of bird population dynamics using unmanned monitoring system in rice paddy. We compared the similarity of population dynamics of birds between unmanned monitoring system and field survey, and evaluated the spatial and temporal patterns of population dynamics of birds using the unmanned monitoring system. The monitoring using the system was conducted from January 1, 2014 to December 31, 2016 in Cheolwon, Dangjin, Buan, and Heanam. The images from the system were obtained at 10-min intervals from 6:00 to 20:00. The field survey was conducted once a month in Dangjin from January to December 2016. Total 91,980 images were obtained from the unmanned monitoring system. We extracted the number of individuals for herons, shorebirds, and waterfowl from the images. The population dynamics of waterbirds using the unmanned monitoring system were similar to that in field survey. Especially, population dynamics of herons was more similar than other waterbirds. It was identified that the population dynamics of herons using the unmanned monitoring system was different among the Cheolwon, Dangjin, Buan, and Heanam. Furthermore, the unmanned monitoring system was available on various time scale such as month, day, and minute. It is expected that long-term data storage using the unmanned monitoring system can be used to identify in detail and forecast the population dynamics of birds in rice paddy.

• Proceedings of the Safety Management and Science Conference
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• 2010.04a
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• pp.107-116
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• 2010

Government and company are unfolding greenhouse gas reduction activity to prevent the effects of global warming. Also, verification business through greenhouse gas inventory construction is spreaded variously. Greenhouse gas verification proceeds by document examination, risk analysis, field survey. Document investigates emission information, calculation standard, emission report, data management system. And through risk assessment result, establish field verification plan. Through study on risk assessment of greenhouse gas inventory verification, wish to reduce risk of verification.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.58 no.9
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• pp.1815-1820
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• 2009

The FEM(Finite Element Method) is widely adopted numerical technique for finding approximate solutions of various engineering problems in which partial differential equations (PDEs) are involved. Although the original purpose of the FEM is focused on numerical analysis itself due to its heavy computation time, this method has been adopted into control engineering field during the last decade to improve product or system performance. In this paper, this trend is briefly introduced.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.57 no.4
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• pp.302-315
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• 2021

In this study, factors such as improvement of a fishing process and safety, reduction of the labor force and headcount and development of the automation technology for offshore (eel and crab) pot fishing vessels were analyzed. A questionnaire survey was conducted to analyze and select the key factors using independent/paired sample t-test and correlation analysis, and a living lab was operated with ship owners, skippers and experts to discuss practical needs of the site. From the result of questionnaire survey and field requirements, it was possible to understand the level of awareness of ship safety, general safety equipment, fishing work process and fishing safety equipment from the point of view of the field. In addition, there were differences in the measurement results of each items because the working environment and experience were different according to the position of the ship owner and the skipper. The results of the questionnaire survey and various perceptions of field stakeholders were reflected when analyzing the fishing system and fishing process to choose the development equipment applicable to the field. From the analysis results, the selected development equipment based on the fishing equipment and process currently in operation are pot washing device, catch separation and fish hold injection device, length limit regulations and bait ejection device after use, automatic main line winding device, bait crusher, automatic (crab) pot hauling separator and so on.

• Journal of the Korean Society of School Health
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• v.19 no.1
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• pp.17-29
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• 2006

Purpose : The purpose of this study were to examine the degree of job duty importance and difficulty of nutrition teachers in elementary school and then to make their future duties and roles clearly. Methods : The duties of nutrition teachers were classified into four fields such as foodservice management, nutrition education, nutrition counseling and educational experience of Korean agricultural products, and then each field were divided into job duties and job tasks. The subjects was 139 dietitians at elementary schools in Dague and Kyungpook Province who appraised the degree of importance and difficulty of the above four job duties with the Likert 5-point scale through a questionnaire survey. Results : From the results of the survey, it was found that every dietitian had highly assessed the importance of the four job duties of nutrition teachers. In a survey of the degree of job duty importance and difficulty on the dietitians, subjects recognized the following such as haccp management in the field of foodservice management is of the most importance(4.30), and the personal management has the most difficulty (3.80). In the field of nutrition education, the work of establishment nutrition education plan is of the most importance(4.33), and the developing of nutrition education materials and programsn are the most difficulty (4.13). In the field of nutrition counselling, students of that than parents and teachers counselling is of the most importance (4.15) and the most difficulty (4.08). Finally, in the field of our agricultural products experience education, which of he work is the most importance(4.07), and difficulty (4.02). Conclusion : Therefore, it is judged that nutrition teachers in the future should not only have a foodservice management, as their main job duty, but also aid in constructing life-long health management system for students and teachers by conducting a nutrition education and counseling, and also exert their energies in the job duties of menu development and experience education utilizing our agricultural products.

• Journal of Korean Society of Water and Wastewater
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• v.20 no.1
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• pp.18-23
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• 2006

• Journal of Korean Society of Rural Planning
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• v.15 no.4
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• pp.213-220
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• 2009

Farmland spatial data are needed as a basic information in conducting rational use of farmlands in regional scale. This study develops a method that can be used to make up such farmland spatial data in a simple way and to develop a technique to manage them in a unitary way, and examines the effectiveness of the technique by applying it to the case area. A method that Web-Service Raster Image and Digital Cadastal Map can be utilized as a base map was devised. It was designed applying the vector system, in which one lot of farmland is area unit. Raster image and field survey data were combined to increase the accuracy of data. The lot boundaries of the existing boundary map were adjusted to the shapes of actual farmlands using GIS edition function. A proper farmland use classification system to the area characteristics was established and data obtained from the field survey were coded. Usually it is very difficult to identify the size of one lot of actual farmland in the existing space data, based on the results of the case study, the result map showed actual topography very realistically. Also the frequently occurring lot divisions and the serious topographical modifications by natural disasters frequently have made it impossible to survey farmlands on the catastral map in the field. But the final map had a great usefulness in that it may solve such problems by expressing the filed survey results graphically.

• Management & Information Systems Review
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• v.21
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• pp.131-154
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• 2007

The purpose of this study is to understand a information technology acceptance model and to test empirically using field survey. In order to achieve this purpose, first of all, I examined literature reviews about the theory of reasoned action(TRA), the theory of planned behavior(TPB), and the theories of technology acceptance model(TAM). Based on literature reviews, I proposed a technology acceptance model and empirically verified it through using field survey. As a result of, this study was designed to predict and to explain the factors of affecting reuses of a website. The data that were surveyed 193 users of internet were analyzed with SPSS 12.0 and AMOS 4.0. The major results of this study as follows : First, the perceived complexity is influenced by the skill & experience and the quality of system. Second, the quality of system affects the perceived usefulness. Third, the perceived complexity affects the perceived usefulness and the perceived playfulness. Fourth, reuses of a web site are influenced by the perceived usefulness and the perceived playfulness. Finally, the quality of system affects the perceived usefulness and the skill & experience affect the perceived playfulness.

• Journal of the Korean Society of Costume
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• v.63 no.3
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• pp.138-150
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• 2013

The purpose of this study was to investigate research trends of subject matter in clothing construction field in clothing and textiles and to suggest the information for the future directions for fashion business and research. 2737 articles with clothing and textiles subject matter, 350 articles with clothing construction field in the Journal of Korean Society of Costume and Journal of the Korean Society of Clothing and Textiles from 2001 through 2010 were analyzed. The major conclusions of the study are as follows: 1. Clothing construction field took 12.8% with 350 articles in the researches of the Journal Publications in 2000s. 2. Clothing construction field showed more proportions in the latter half of the decade. 3. Clothing construction field were classified into 5 topics : topic of basic pattern and pattern for apparel, topic of body types, topic of functionality of clothing and protective clothing, topic of size system of apparel, topic of sewing and manufacturing process. 4. In clothing construction field, topic of basic pattern and pattern for apparel took the most proportions. 5. Topic of body types, topic of functionality of clothing and protective clothing, topic of size system of apparel, topic of sewing and manufacturing process were followed.

• Geophysics and Geophysical Exploration
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• v.6 no.4
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• pp.187-194
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• 2003

A small-loop electromagnetic (EM) system using multiple frequencies has advantages in survey speed and cost despite of limitation on its depth of investigation. Therefore, small-loop EM surveys have been frequently used on various site investigations involving engineering and environmental problems. We have developed a subsurface imaging technique using small loop EM data. We used a one-dimensional (ID) inversion method to reconstruct a subsurface image from frequency EM sounding data. Tests using simulated data show that the method can reasonably recover the subsurface resistivity structure. Also, the method was tested on field data obtained with multiple frequency small loop EM system at a farm in Chunchon, Korea. The resistivity image obtained form field data compares favorably with the image from the dipole-dipole resistivity survey.