• Title/Summary/Keyword: 사례조사 분석 방법

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A Study on the Applicability of Soilremediation Technology for Contaminated Sediment in Agro-livestock Reservoir (농축산저수지 오염퇴적토의 토양정화기술에 대한 적용성 연구)

  • Jung, Jaeyun;Chang, Yoonyoung
    • Journal of Environmental Impact Assessment
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    • v.29 no.3
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    • pp.157-181
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    • 2020
  • Sediments from rivers, lakes and marine ports serve as end points for pollutants discharged into the water, and at the same time serve as sources of pollutants that are continuously released into the water. Until now, the contaminated sediments have been landfilled or dumped at sea. Landfilling, however, was expensive and dumping at sea was completely banned due to the London Convention. Therefore, this study applied contaminated sedimentation soil of 'Royal Palace Livestock Complex' as soil purification method. Soil remediation methods were applied to pretreatment, composting, soil washing, electrokinetics, and thermal desorption by selecting overseas application cases and domestically applicable application technologies. As a result of surveying the site for pollutant characteristics, Disolved Oxigen (DO), Suspended Solid (SS), Chemical Oxygen Demand (COD), Total Nitrogen (TN), and Total Phosphorus (TP) exceeded the discharged water quality standard, and especially SS, COD, TN, and TP exceeded the standard several tens to several hundred times. Soil showed high concentrations of copper and zinc, which promote the growth of pig feed, and cadmium exceeded 1 standard of Soil Environment Conservation Act. In the pretreatment technology, hydrocyclone was used for particle size separation, and the fine soil was separated by more than 80%. Composting was performed on organic and Total Petroleum Hydrocarbon (TPH) contaminated soils. TPH was treated within the standard of concern, and E. coli was analyzed to be high in organic matter, and the fertilizer specification was satisfied by applying the optimum composting conditions at 70℃, but the organic matter content was lower than the fertilizer specification. As a result of continuous washing test, Cd has 5 levels of residual material in fine soil. Cu and Zn were mostly composed of ion exchange properties (stage 1), carbonates (stage 2), and iron / manganese oxides (stage 3), which facilitate easy separation of contamination. As a result of applying acid dissolution and multi-stage washing step by step, hydrochloric acid, 1.0M, 1: 3, 200rpm, 60min was analyzed as the optimal washing factor. Most of the contaminated sediments were found to satisfy the Soil Environmental Conservation Act's standards. Therefore, as a result of the applicability test of this study, soil with high heavy metal contamination was used as aggregate by applying soil cleaning after pre-treatment. It was possible to verify that it was efficient to use organic and oil-contaminated soil as compost Maturity after exterminating contaminants and E. coli by applying composting.

An Analysis of the Characteristics of the Civil Complaints Occurred to the Landscape Architecture Project in Apartment Complex (아파트 단지 조경사업에서 발생하는 민원 특성 분석 - 민원의 공공성과 조치용이성 분석을 중심으로 -)

  • Cho, Se-Hwan;Lee, Myeong-Hun;Jo, Hyun-Kil;Kim, In-Ho;An, Seung-Hong;Oh, Jeong-Hak
    • Journal of the Korean Institute of Landscape Architecture
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    • v.41 no.5
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    • pp.78-90
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    • 2013
  • The purpose of this study was to analyze the types and characteristics of public complaints caused by the landscape architecture projects in the case of apartment complex. Furthermore, its purpose was also to propose as the basis data for the minimization of complaints in the course of future landscape architecture projects. To analyze and categorize the apartment complex civil complaints, we collected basic and case study data from LH Corporation, SH Corporation and GICO from 2009 to 2012. We also categorized 672 landscape complaints to 73 categories and conducted a survey from residents and landscape architecture. This Survey is to use IPA can collect character(public-private), handling of civil affair(easy-hard) and analyze typical characters and difference of civil complaint awareness between landscape architecture and residents. First, we were categorized 73 civil complaints by type in 5 categories such as park, green space and street trees, pedestrian road, facilities, and others. Second, the most common landscape complaints appear in green spaces, street trees, facilities, pedestrian roads and park orders. Third, results of the analysis conducted for each item which are publicity and measures the ease. 'Facilities', 'landscape and greenery', 'pedestrian road' and others were commonly appears from residents and professional awareness of the complaints. However, complaints of park appear different awareness between landscape architecture and residents. Fourth, 35 from 73 civil complaints(47.9%) are having high publicity and easy to measure, 25 civil complaints(34.2%) has analyzed to individual and difficult to measure so about the these complaints need to check from the design step so that it is necessary to minimize the problem of additional expense by civil complaints burden and decrease the confidence of residence problem were considered.

A Development of Cryptography Learning Program with the PCM Model for the Gifted Elementary Students of Information Science (초등 정보 영재학생들을 위한 병행 교육과정 모델을 적용한 암호화 교육 프로그램 개발)

  • Kim, Jeehyun;Kim, Kapsu
    • Journal of The Korean Association of Information Education
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    • v.18 no.3
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    • pp.371-380
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    • 2014
  • There is a little curriculum for gifted and talented elementary information. Generally parallel curriculum model(PCM) for gifted children is being applied to many subjects. It is necessary to apply the PCM for gifted elementary children of information science. This model is a prime example of a training program was applied to the encryption. There are four parallel curriculum model. The four curriculum model can be used individually or combined, may be used only partially. In this study, the benefits of parallel curriculum model in order to reflect as much as possible in order all four courses were used. This program for 19 students in the gifted children for information science class were applied to four periods. Observe and record the activities of students in class, the survey targeted learners, assignments, methods of analysis were used. We found that the level of the program was suitable and the aspects of giftedness such as an ability to focus on the task and an ability to solve the problem were enhanced. Moreover, participants became more interested in the topic of encryption following the program.

The Intertidal Restoration and Relationship with Water birds According to Before and After Operation of Sihwa Lake Tidal Power Plant (시화호 조력발전소 가동 전·후 조간대 복원과 수조류와의 관계)

  • Park, Chi-Young;Kim, Ho-Joon;Paik, In-Hwan;Jin, Seon-Deok;Paek, Woon-Kee;Lee, Joon-Woo
    • Korean Journal of Environment and Ecology
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    • v.30 no.3
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    • pp.320-327
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    • 2016
  • Intertidal zone has been restored by the Sihwa Lake tidal power plant is operating in 2012. After restoration, to check the difference of bird group's community change out, the examination has been carried out from 2009 to 2014 when sea dike sluicer runs, the intertidal zone area was increased to $20.3km^2$ after restoring in $5.3km^2$. There was no significant difference in the number of individuals congestion of the whole, but the results of analysis of the differences between the six bird group by number of individuals, it showed a significant difference in Diving ducks(p = 0.237) the Herons (p<0.001), Swans and Geese (p<0.01), Dabbling ducks (p<0.001), showed a significant difference in the Shore birds (p<0.001) gulls (p<0.001) except for diving of ducks. Sihwa Lake intertidal zone was only just been restored, but environment and the improvement of benthic ecosystem has been carried out, It is determined that waterfowls that living based on intertidal zone are also affected. This study is a good example of the restoration of the intertidal zone that disappeared, which hard to find a similar case. It will be utilized as basic data of ecological monitoring for the conservation and management of the future of the intertidal zone later.

Preliminary Checklist For Vertical Extension of Elevator in Apartment Buildings (공동주택의 엘리베이터 수직 확장 공사를 위한 사전 검토항목)

  • Park, Jin-Gu;Lee, Chan-Sik
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2008.11a
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    • pp.813-816
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    • 2008
  • The increasing number of vehicles owned by individuals in association with the rising income resulted in an acute shortage of parking spaces. We are not only seeing a serious traffic congestion arising from the vehicles parked in the streets adjacent to apartment buildings, but also the social issues of not being able to properly prepare for the emergency such as breakout of fires. Although remodeling of old apartment buildings are being discussed in measures to these problems, the research of parking space expansion is still insufficient. In a survey on remodeling of old apartment buildings, over 30 percent of those who answered cited the parking space as the most needed improvement and said they preferred direct entry as a way to expand parking space among lateral underground expansion methods. The direct entry is a method in which one directly enters the apartment house from the parking lot through the elevator and it requires extended operation of elevators. However, because there are no established systematic processes for elevator extension and works of such kinds are not common, elevator extension works are being done in an inefficient manner. In this research we reanalyzed the processes in order to present the items to be examined for more efficient elevator extension works, and through interviews of experts in the field, we produced the examination items by process from the perspectives of management and technology. This research will be used as a reference material for elevator extension works associated with expanding underground parking lot of apartment buildings.

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A study on the Construction Claims Between Parties Without Privity (국내 건설분쟁에서 비계약 당사자간의 건설분쟁에 관한 연구)

  • Yun Dae-Jung;Han Sung-Heon;Paek Joon-Hong
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • autumn
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    • pp.300-305
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    • 2002
  • The construction project is a complex undertaking involving multiple participants. Conflicts are inherently natural in the construction projects and subsequently, a success of projects mainly depends on how well to cope with the conflicts. In the past, courts usually took the position that the professional's exposure in damages for negligent performance of any of his/her duties would not extend to strangers to the contractual arrangement. However, courts today generally reject that rationale which was earlier in vogue and protect architects, engineers, and contractors from being liable to third parties. It means that the lack of privity of contract could rarely protect a profession in a suit alleging the negligence or professional malpractice in preparing plans or specifications. The main goal of this paper is to enhance the understanding of the legal aspect of privity and to provide the trend of no-privity disputes through the analysis of lawsuit cases during the last 40 years. On the base of the analysis, importance of the third relationship and the liability in construction disputes is presented.

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Preliminary Design of the Forced Gas Drying System for Spent Nuclear Fuel Dry Storage (사용후핵연료 건식저장을 위한 기체강제순환 건조장치 예비설계)

  • Chae, Gyung-sun;Shin, Kyung-wook;Park, Byeong-mok;Han, Jae-hyun;Lee, Geon-hui;Park, Jae-seok
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.15 no.4
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    • pp.403-409
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    • 2017
  • For dry storage of the spent nuclear fuel (SNF) stored in the storage pool of a nuclear power plant, essentially all moisture must be removed to prevent corrosion of the assembly and canister internals and/or degradation of fuel cladding integrity after SNF canister loading operation. R&D work is now in progress on a forced gas drying system that can be used to remove residual water in canisters. In this work, preliminary design is performed to manufacture the forced gas drying system. This process includes a case study of dry methods for canister moisture removal, relative codes and standards, confirmation of adequate dryness, needs analysis at plant sites, and characteristics of SNF stored in pools. Through this preliminary design work, we obtained a conceptual flow diagram and preliminary P&ID of the forced gas drying system. The results of this study can be used to determine details of the design to manufacture the forced gas drying system.

Outcome and Implication of Establishment and Practice of Action Plan for the Elderly Care Facility in Establishing Risk Management System (노인요양시설의 위험관리시스템 구축활동에서 액션 플랜의 수립과 실행에 따른 성과와 시사점)

  • Youn, Ki-Hyok;Park, Kyung-Il;Kwon, Jin-A
    • The Journal of the Korea Contents Association
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    • v.16 no.11
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    • pp.308-320
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    • 2016
  • This research is an empirical case study that suggests the practical practice and output of action plan, the actual performing activity of risk management system established to prevent and respond to risk of the elderly care facility. For this, this research analyzed the action plan practice process and outcome upon 2 years' practice (2014~2015) by A Elderly care facility which has conducted performance activity by establishing risk management system to prevent and respond to danger for the first time in Korea. As the research result, first, risk management system action plan was established in the choice and performance stage of risk prevention and response handling method, the 3rd among 4 staged process of risk management system establishment. Second, as the outcome along with risk management system action plan performance, as the result of comprehending the investigation on risk change for 2 years(2014~2015), risk decreased by 28% in 2015 compared to 2014, displaying effect in risk management activity along with performing action plan. Based on this result, it was determined that action plan for the effective action plan establishment and practice in the elderly care facility should be established with systematic promotion schedule to be well connected with its strategy, achievement goal, and achievement project, etc. based on vision and strategy, instead of being established individually, based on clear matter of responsibility, utilizing such technique as Gantt chart, etc., composing concretely by schematizing in order to view all contents to be practiced clearly.

A study of storytelling character development based on Asia culture - Focusing on ACC Children developing characters - (아시아문화 기반의 스토리텔링 캐릭터 개발에 관한 연구 -국립아시아문화전당 어린이문화원 캐릭터 개발 사례를 중심으로-)

  • Lee, Tae-eun
    • Cartoon and Animation Studies
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    • s.47
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    • pp.357-380
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    • 2017
  • From the 21st century, characters have been developed and managed by many companies, organizations and groups due to public-friendly elements, Community Identity Program, value of utilization for OSMU, etc. This study was carried out according to a plan of developing a character and making an application in ACC Children based on Asia Culture, which was implemented as ACC Children contents R&D project from 2014 to 2016. This R&D and purpose is significant because of laying the groundwork for identity system making it possible to increase the brand value of ACC Children and symbolize ACC Children by developing a character, application and name suitable for the philosophy and function of ACC Children that will be used together with CI of Asia Culture Center. With regard to the research method and scope, Asia is divided into 5 regions, and 100 representative stories in Asia are selected, and a storytelling-based character, application and name with connotative symbol and meaning pursued by ACC Children is developed by choosing and analyzing symbolic animals according to consulting and survey. The characters of ACC Children give publicity to the symbolism of ACC Children, and are actively utilized for OSMU.

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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