• 한국농촌건축학회논문집
• /
• 제18권1호
• /
• pp.67-74
• /
• 2016

Establishing a renewal plan and practical use of Jungam temple, which exists natural monuments, including national treasures and Gangwondo cultural materials, at Jungseon is as important as anything else. To discuss the renewal plan and the practical use of Jungam temple, this thesis is composed with the next series of processes. First, this thesis presents examining a relationship between Jajang, who was a buddhist monk and caused a departure point of foundation of the temple, and Jungam temple is necessary; thus, the relationship of his architectural consciousness and Jungam temple was showed in this thesis. Second, this thesis demonstrates present conditions for extant facilities and features of the space structure for Jungam temple to look into architectural characteristics of Jungam temple. Third, this thesis shows preservation of Jungam temple because this temple is the historic cultural resource; in addition, this thesis explains restoring of lost elements for points, repairing shipments regarding the whole area of preservation targets, expansion of the area nearby historic cultural resources to make plans for maintaining Jungam temple. Finally, this thesis concludes the final result of Jungam temple to work towards becoming the contemporarily historic cultural resource by designating Jungam temple as the historic site and suggesting energization by public participation and experience programs to continuously manage Jungam temple.

• Computers and Concrete
• /
• 제20권5호
• /
• pp.583-593
• /
• 2017

Applications of fibre-reinforced polymer (FRP) composites for retrofitting, strengthening and repairing concrete structures have been expanded dramatically in the last decade. FRPs have high specific strength and stiffness compared to conventional construction materials, e.g., steel. Ease of preparation and installation, resistance to corrosion, versatile fabrication and adjustable mechanical properties are other advantages of the FRPs. However, there are major concerns about long-term performance, serviceability and durability of FRP applications in concrete structures. Therefore, structural health monitoring (SHM) and damage detection in FRP-retrofitted concrete structures need to be implemented. This paper presents a study on investigating the application of Rayleigh wave for detecting debonding defect in FRP-retrofitted concrete structures. A time-of-flight (ToF) method is proposed to determine the location of a debonding between the FRP and concrete using Rayleigh wave. A series of numerical case studies are carried out to demonstrate the capability of the proposed debonding detection method. In the numerical case studies, a three-dimensional (3D) finite element (FE) model is developed to simulate the Rayleigh wave propagation and scattering at the debonding in the FRP-retrofitted concrete structure. Absorbing layers are employed in the 3D FE model to reduce computational cost in simulating the practical size of the FRP-retrofitted structure. Different debonding sizes and locations are considered in the case studies. The results show that the proposed ToF method is able to accurately determine the location of the debonding in the FRP-retrofitted concrete structure.

• 한국구조물진단유지관리공학회 논문집
• /
• 제7권1호
• /
• pp.279-288
• /
• 2003

This study is the development of method on repairing concrete structure for progressing the durability of reinforced concrete. This method is wet spray method which compress and conduct mortar pre-mixed with polymer powder to hose by high pressure pump and spray it on the section of concrete structure through nozzle made specially. Characters of this method are that materials are selected with the sort of structure and the cause of deterioration and macro pores are removed in repaired section by conducting with high pressure and spraying with high velocity for progressing the durability of concrete structure. This study has carried out that the minimum capacity of rebound was measured with various condition and physical properties of sample made by spray method were estimated in comparing with sample made by previous hand method. Also, properties of long-term have carried out after this method was applied on site. According to experimental study, the capacity of rebound showed below 5% and physical properties of sample made by spray method were superior to that of sample made by hand method and physical and durable properties of long-term showed excellence.

• 복식문화연구
• /
• 제18권5호
• /
• pp.872-891
• /
• 2010

This study was an exploratory research to classify the types of green fashion marketing of the fashion companies in South Korea and analyse the present cases of each type. To analyse the current cases of green fashion marketing strategies, we researched all sorts of newspapers, magazines, publications of fashion companies, and web sites from 2008 to 2009. As a result, we categorized 5 types of green fashion marketing as follows ; eco-friendly fabrics (natural fabrics, recycled fabrics, biodegradable fabrics), re-use or re-form(reuse after cleaning and/or repairing and reformation through transformation and combination of raw materials), green certifications(ISO 14001, GOTS, OES, etc.), eco-friendly management and operation, and green marketing promotions. Based on the results, we proposed the green marketing strategies for fashion companies to progress toward the proper direction of green marketing. First of all, companies should escape from the narrow view point limited to the product itself. Then they have to focus on developing and execution of sustainable merchandising, manufacturing, logistics, and waste strategies.

• 대한한의학원전학회지
• /
• 제28권2호
• /
• pp.87-102
• /
• 2015

Objectives : I intended to find out the origin and development of symptom discrimination based on theory of triple energizers before Tang Dynasty(唐代). Methods : I extracted the topic-related contents from books in this era. After arraying them in a chronological order, I analyzed the materials. Results : The author in Zhong Zang Jing(中藏經) first mentioned that symptom of Huo Luan(霍亂) was deeply related with triple energizers. Ge Hong(葛洪) did not only come out with some symptoms and mechanisms for Shang Han(傷寒) and Za Bing(雜病), but also applied them to their usages for herb medicine. Chao Yuan Fang(巢元方) suggested its symptoms were more closely related with Shang Han and Za Bing than before. For the first time, Chao subdivided its symptoms to both cold-heat and weakness-strength sides. Sun Sai Miao(孫思邈) supplemented its discrimination invented by Chao(巢元方), adding more symptoms and prescriptions for triple energizers. Wang Tao(王燾) showed more prescriptions for triple energizers than before, and initially designed the discrimination for Huo Luan, diabetes(消渴), and epidemic Wen Bing(溫病). Conclusions : Before Tang dynasty, the symptom discrimination based on theory of triple energizers had been originated and developed for the purpose of repairing Za Bing, not just treating Wen Bing.

• Restorative Dentistry and Endodontics
• /
• 제10권1호
• /
• pp.93-101
• /
• 1984

The experimental study was made to investigate the effect of the "Heliosit" composite resin on the dental pulp. The 36 class V cavities were prepared on the healthy permanent teeth of 3 days, and were divided into 5 groups and filled with the experimental filling materials. Control group: Zinc Oxide-Eugenol cement filling Experimental groups: Group 1: Dentin Adhesit application & Heliosit filling with or without dycal base Group 2: Heliosit filling with or without dycal base Group 3: Durafill filling with dycal base Group 4: Hipol filling with dycal base Animals were sacrificed after 1 weeks, 2 weeks, and 4 weeks following operation. The teeth were decalcified, sectioned and stained with hematoxylin and eosin. The results obtained form this study were as follows: 1. All experimental group showed slight pulp response. 2. Dentin Adhesit group showed minimal pulp response in both dycal bases and no base cases. 3. In group 2, mild pulp response was found in early stage and repairing process was found as the time elapsed. In no base cases, healing process was delayed slightly. 4. There was little difference in the result among Heliosit group, Durafill group and Hipol group.

• Nuclear Engineering and Technology
• /
• 제47권6호
• /
• pp.776-790
• /
• 2015

Background: The advanced spent fuel conditioning process facility (ACPF) of the irradiated materials examination facility (IMEF) at the Korea Atomic Energy Research Institute (KAERI) has been renovated to implement a lab scale electrolytic reduction process for pyroprocessing. The interior and exterior structures of the ACPF hot cell have been modified under the current renovation project for the experimentation of the electrolytic reduction process using spent nuclear fuel. The most important aspect of this renovation was the installation of the argon compartment within the hot cell. Method: For the design and system implementation of the argon compartment system, a full-scale mock-up test and a three-dimensional (3D) simulation test were conducted in advance. The remodeling and repairing of the process cell (M8a), the maintenance cell (M8b), the isolation room, and their utilities were also planned through this simulation to accommodate the designed argon compartment system. Results and conclusion: Based on the considered refurbishment workflow, previous equipment in the M8 cell, including vessels and pipes, were removed and disposed of successfully after a zoning smear survey and decontamination, and new equipment with advanced functions and specifications were installed in the hot cell. Finally, the operating area and isolation room were also refurbished to meet the requirements of the improved hot cell facility.

• 한국측량학회지
• /
• 제27권2호
• /
• pp.273-279
• /
• 2009

문화재를 잘 보존하고 전승하는 것은 후손들의 몫이다. 현재 목조건물 형태의 문화재는 환경적 요인에 의하여 여러 번의 중수와 재건을 한 경우 대부분이다. 본 연구에 활용한 문화재는 11번의 중수와 재건을 한 것으로 초기의 모습이 많이 훼손되었다. 따라서 문화재청에서는 원형으로 복원을 하고자하였다. 그러나 원형 복원을 위한 자료로는 사진해석을 위한 자료가 없는 단 한 장의 사진만 존재한다. 본 연구에서는 자료부족으로 사진측량학적 해석을 하기 어려운 보물 제322호 관덕정의 1900년 이전 사진을 소실점을 이용한 기하학적 해석을 통하여 복원에 필요한 자료를 획득할 수 있었다. 또한 연구 결과로 획득한 자료는 실제 복원을 위한 기초 자료로 제공하였다.

• Restorative Dentistry and Endodontics
• /
• 제4권1호
• /
• pp.11-16
• /
• 1978

This experimental study was made to investigate the effect of the "Hi-Pol" composite resin on the human dental pulp. 38 cavities of healthy permanent teeth were divided into 5 groups which were used as experimental materials. Group 1: Zinc Oxide-Euginol paste was applied to the cavities as controls $\cdots\;\cdots8$ cases Group 2: "Hi-Pol"*filling with Dycal** base $\cdots\;\cdots9$ cases Group 3: "Hi-Pol" filling without Dycal base $\cdots\;\cdots9$ cases Groud 4: Adaptic*** filling with Dycal base $\cdots\;\cdots6$ cases Group 5: Adaptic filling without Dycal base $\cdots\;\cdots6$ cases The treated teeth were extracted after 1 week, 2 weeks, 3 weeks and 4 weeks and processed for histological study. The results obtained from this experimental study were as follows; 1. The controls applied zinc oxide-eugenol showed the minimal pulp response and group 3 and group 5 showed the most severe pulp response. 2. In group 3 and group 5, the severity of pulp response increased in intensity according to the time elapsed. 3. In group 2 and group 4, the mild pulp response was found in earlier stage and the repairing process could be observed in later stage. * Boo-Pyung Co., Korea ** L. D. Caulk Co., Milford, Del. 19963 *** Johnson and Johnson Co., New Brunswick, NJ 08903.

• Computers and Concrete
• /
• 제27권5호
• /
• pp.395-406
• /
• 2021

This study experimentally and analytically investigates the shear behavior of corroded reinforced concrete (RC) beams repaired using steel fiber-reinforced concrete (SFRC) in the flexural zone. The experimental parameters are the corrosion degree (0%, 12%, and 17%) and the steel fiber volume in the SFRC (1.0%, 1.5%, and 2.0%). The test results reveal that corrosion degree significantly affects the shear resistance of the beams. The shear capacity of the beam with the corrosion degree of 17% was higher than that of the uncorroded beam, whereas the shear capacity of the beam with the corrosion degree of 12% was lower than that of the uncorroded beam. The shear efficiency of damaged beams can be recovered by repairing them using SFRC that contains a reasonable amount of steel fibers. In addition, two methods to estimate the shear capacity of the repaired beams are developed using the modified truss analogy and strut-and-tie models. The estimated shear capacity of the beam using the modified truss analogy model agrees well with the experimental data.