공동주택의 분별해체 시험시공을 통한 건설폐기물 발생량 비교 분석

김효진,강인석,김창학,Kim, Hyojin,Kang, Leenseok,Kim, Changhak 한국건설관리학회 2014 한국건설관리학회 논문집 Vol.15 No.6

건설폐기물의 재활용과 재사용 비율을 높이기 위해서는 건축물의 분별해체 공법이 적용되어야 한다. 본 연구에서는 공동주택을 대상으로 시험시공을 실시하였다. 먼저 해체 과정에서 발생할 수 있는 모든 건설페기물을 건물의 각 부위별로 조사하였다. 해체대상 건물의 도면을 작성하고 이 도면을 분석하여 각 건설페기물의 발생량을 예측하였다. 공동주택의 한 빌딩씩 분별해체와 일반해체과정을 실시하면서 이 과정에 투입되는 인력 및 장비의 소요시간을 측정하고, 또한 각 해체과정에서 발생된 폐기물을 정밀 계측하여 이것의 체적, 단위중량 등을 제시하였다. 이러한 자료의 분석을 통해 도면분석 결과와 현장에서 발생된 건설페기물의 양을 비교분석하여 현장 회수율, 체적 및 중량 환산계수, 폐기물 원단위를 제안하였다. 이러한 계수는 건설페기물의 발생량 예측과 운반비 산정, 작업 공정계획 수립 등을 위한 기초적 자료로서 활용될 수 있을 것이다. Deconstruction of the building must be applied firstly in order to improve recycling and reuse of construction wastes. In this study have done a case study for deconstruction of an apartment. All construction waste(CW) which will be generated during deconstruction was examined in each part of the building. Because drawing did not exist in most of the old building, we drew up floor plans of buildings. After analyzing these drawings, estimated quantities of CW. It was measured working time of labor and equipments for deconstruction and general demolition on each building of the apartment. In addition, it was proposed in the volume and weight per unit after analyzing detailed measurement of CW which was generated in the process of deconstruction and traditional demolition. It suggested recovery rate at a site, volume and weight conversion factors, and waste basic unit per area that based on the results of comparative analysis on the amount of CW which is calculated from drawing and generated at a site. These factors will be used fundamental materials for estimating quantities and treatment cost of CW, and scheduling of works.

백내장 수술 또는 후발성백내장 수술 후 동공크기의 변화

김효진,김현진,주천기,Hyojin Kim,Hyun Jin Kim,Choun-Ki Joo 대한안과학회 2005 대한안과학회지 Vol.46 No.1

Purpose: To investigate the change of pupil diameter following cataract surgery or after-cataract surgery and the dependence of this change on the opacity at photopic and scotopic adaptation. Methods: Thirty-five eyes with cataract and 32 eyes with after-cataract were evaluated prospectively. The pupil diameter was measured at 220 lux (photopic) and 0.05 lux (scotopic) using a pupillometer. Cataract patients were examined preoperatively, and at 1 week and 2 months postoperatively, and after-cataract patients were examined preoperatively, and at 1 week postoperatively. The lens opacity was classified as opacity degree and the after-cataract was divided into pearl and fibrosis type. Results: Pupil diameter of cataract patients was reduced after surgery at photopic and scotopic adaptation (p<0.05). The pupil diameter of eyes with severe opacity degree was 4.3±1.1 mm and 5.0±1.1 mm at photopic and scotopic adaptation, respectively, and was larger than eyes with mild opacity degree (3.9±1.1 mm and 4.5±1.1 mm, respectively, p<0.05). At photopic and scotopic adaptation, pupil diameter of after-cataract patients was reduced by Nd:Yag laser (p<0.05). The pupil diameter of eyes with fibrosis type, 4.6±1.0 mm, was significantly smaller than that of eyes with pearls type (5.1±1.1 mm, p<0.05). Conclusions: The pupil diameter of eyes with severe opacity degree was larger that of eyes with mild opacity degree. In after-cataract patients, pupil diameter was significant different depending on opacification type at scotopic adaptation and it was reduced after Nd:Yag laser.

Evaluation of Titanium-nitride Coated Crown: Surface Hardness, Corrosion Resistance and Color Sustainability

김효진,임수민,김진영,Kim, Hyojin,Lim, Sumin,Kim, JinYoung Korean Academy of Pediatric Dentistry 2021 大韓小兒齒科學會誌 Vol.48 No.3

이 연구의 목적은 타이타늄-질소 코팅된 금속관(TiNCs)의 표면 경도와 스테인리스 스틸 금속관(SSCs)의 표면 경도를 비교하고, TiNCs의 부식 저항성 및 물리적 자극에 대한 금색 코팅의 안정성을 평가하는 것이다. 표면 경도 시험을 위해 10개의 TiNCs와 10개의 SSCs를 사용하였다. 각 금속관 종류당 총 30번의 경도를 측정하여 평균값을 구하고 비교하였다. 부식 저항성 시험을 위해 직사각형 형태의 TiNC와 SSC의 원재료(금속관으로 가공되기 전 판상 형태)를 준비하였다. 각 금속관 종류 당 2회의 부식 시험을 시행하였다. 부식 용액에 용출된 금속 이온의 총 양을 유도결합 플라즈마 분광분석기로 측정하였다. 5개의 TiNCs로 반복적으로 가해지는 칫솔력에 대한 색조 안정성 시험을 시행하였다. TiNCs의 평균 경도는 SSCs의 평균 경도보다 유의미하게 높았다. TiNCs와 SSCs의 원재료로부터 용출된 금속 이온의 총 합은 ISO 22674(재료의 무결성에 관한 기준) 기준치를 넘지 않음을 확인했다. TiNCs의 금색 코팅은 반복적인 물리적 자극에 대하여 주어진 시간 동안 안정성을 가졌다. The purpose of this study was to compare surface hardness between titanium-nitride coated crowns (TiNCs) and stainless steel crowns (SSCs), and to evaluate the corrosion resistance and color sustainability of TiNCs. Ten TiNCs and 10 SSCs were used for the hardness test. Measurement was performed 30 times for each type of crowns, and the mean values were compared. Metallic raw material plates (before being processed into crowns) of TiNCs and SSCs were prepared for the corrosion resistance test. The total amounts of metal ion releases in the test solution were detected by inductively coupled plasma-optical emission spectrometry. Five TiNCs were subjected to the color sustainability test by applying repetitive brushing forces. The mean hardness values of TiNC group and SSC group were 395.53 ± 105.90 Hv and 278.70 ± 31.45 Hv respectively. Hardness of TiNCs were significantly higher than that of SSCs. The total amounts of metal ion releases from the materials of TiNCs and SSCs satisfied the criterion in International Organization for Standardization 22674. The results mean that TiNCs and SSCs were not harmful in an acidic environment. The golden coating was stable against the repetitive physical stimulations for a given period time.

21세기 일본 오타쿠문화의 행방: ‘코미케 스페셜’의 변모를 중심으로

김효진 ( Kim¸ Hyojin ) 현대일본학회 2020 日本硏究論叢 Vol.51 No.-

본 논문은 40년 이상의 역사를 가진 일본 최대 규모의 이벤트인 <코믹마켓>이 5년에 1회, 특별 행사로서 개최하는 <코미케 스페셜>의 변모를 분석하고, 이를 통해 2000년대 이후 일본 오타쿠문화가 주류사회와의 관계를 어떻게 규정해 왔는가를 추적하고 이러한 변화가 내포한 문제점을 비판적으로 고찰하고자 한다. 1년에 2회, 동인지의 배포와 교류를 주 내용으로 하는 동인지 즉매회가 중심인 코미케 본행사와는 달리 코미케 스페셜은 코믹마켓준비회가 특정한 테마를 바탕으로 만화와 관련이 있는 다양한 기획을 실행하는 장으로서 기획되었다. 실제 이벤트 내용과 기획의도를 살펴보면 2005년에 열린 4회까지는 ‘놀이의 장’으로서, 오타쿠문화의 내부자가 즐기기 위한 내용으로 구성되었다면 2010년과 2015년에 열린 5회와 6회에서는 주류사회의 이슈를 반영하여 각각 지역활성화와 쿨재팬 정책과의 관련성이 강화되는 방향으로 나타나고 있다. 특히 6회에서 채택된 <오타쿠 신세기 선언> 및 코미케 관련 단체로서 <국제 오타쿠 엑스포협회>의 발족에서 드러나는 오타쿠문화의 일본적인 특성에 대한 강조는 중앙정부에 의한 오타쿠문화의 전유라는 측면에서 많은 문제를 제기한다. 결론적으로 2000년대 이후 일본 내부에서도 주목하기 시작한 경제적 중요성과 세계적인 위상으로 인해 코미케가 더 이상 주류사회와의 접점을 피할 수 없다면, 주류사회의 ‘어떤’ 행위자와 ‘어떤’ 방식 의 접점을 만들어갈 것인가야말로 앞으로 코미케가 마주한 새로운 도전일 것이다. This study examined how Japanese otaku culture has defined its relationship with mainstream Japanese society since the 2000s by analyzing the changes in Comike Special (CS), the special event of the Comic Market, which is held every five years. Comike Special is designed as an event involving unique performances and events, which cannot be done at regular Comic Market, with a different theme for each event. For example, from CS 1 to CS 4, each CS focused on ‘entertainment for otaku’, by offering a range of performances, symposia, and talk shows. On the other hand, CS 5 with the theme ‘Townmaking by Comiket’ and CS 6 with the theme ‘OTAKU SUMMIT’, closely reflected the interests of mainstream society in otaku culture and appeared to meet its expectations toward otaku and comic market. Moreover, < Declaration of the New Otaku Century > and the inauguration of the International Otaku Expo Association, which are designed as a part of CS 6, are problematic because the emphasis on Japan as the origin of otaku culture came from the appropriation of otaku culture by the Japanese government. In conclusion, the future of Comiket depends on what kind of agency it will co-operate with and what kind of congruence will emerge as a result, as far as mainstream society is interested in Comiket.

Bathcare Bot

Hyojin Kim(김효진) 한국디자인학회 2021 한국디자인학회 국제초대전도록 Vol.2021 No.5

The Egg Plate

Hyojin Kim(김효진) 한국디자인학회 2021 한국디자인학회 국제초대전도록 Vol.2021 No.5

추리드라마의 추리서사 연구 ― 〈시그널〉과 〈비밀의 숲〉을 중심으로 ―

김효진(Kim, hyojin) 중앙어문학회 2023 語文論集 Vol.94 No.-

MOOC 환경에서 자기조절학습능력과 지각된 유용성이 학습지속의향에 미치는 영향: 학습몰입의 매개효과 및 과제기술적합성의 조절효과

김효진 ( Hyojin Kim ),송해덕 ( Hae-deok Song ),윤혜주 ( Hyejoo Yun ),김연경 ( Yeonkyoung Kim ) 한국교육공학회 2022 교육공학연구 Vol.38 No.1

본 연구는 K-MOOC를 수강하는 학습자들의 자기조절학습능력, 지각된 유용성, 학습몰입, 과제기술적합성, 학습지속의향 간의 구조적 관계를 분석하여 학문적, 실천적 시사점을 도출하는 것을 목적으로 한다. 연구 대상은 K-MOOC 참여 대학으로 선정된 서울시 소재 4년제 A 대학에서 개설된 4개 K-MOOC 강좌의 수강생 179명이다. 연구 결과는 다음과 같다. 첫째, K-MOOC에서 자기조절학습능력은 학습지속의향에 직접적인 유의한 영향을 미치지 않는 반면 간접효과는 유의하였으며, 학습몰입에는 정적인 영향을 미치는 것으로 나타났다. 둘째, K-MOOC에서 지각된 유용성은 학습몰입과 학습지속의향에 정적인 영향을 미치는 것으로 나타났다. 셋째, K-MOOC에서 자기조절학습능력, 지각된 유용성은 학습몰입을 매개로 학습지속의향에 유의한 영향을 미치는 것으로 나타났다. 넷째, K-MOOC에서 과제기술적합성은 자기조절학습능력, 지각된 유용성과 학습몰입 간 관계에서 조절효과를 가지고 학습지속의향 간 관계에서 조절된 매개효과를 가지는 것으로 나타났다. 이를 통해 K-MOOC에서 학습지속의향을 향상시키기 위한 학습 환경 설계의 필요성과 학습지원 방안에 대해 논의하였다. The purpose of this study was to derive academic and practical implications by analyzing the structural relationship among self-regulated learning ability, perceived usefulness, learning engagement, task technology fit, and learning persistence of learners taking K-MOOC. The participants included 179 students from four K-MOOC courses opened at a four-year university A in Seoul, which were selected as K-MOOC participating universities. The study results were as follows. First, the self-regulated learning ability did not have a direct significant effect on the learning persistence, while the indirect effect was significant, and it had a positive effect on learning engagement. Second, perceived usefulness had a positive effect on learning engagement and learning persistence. Third, learning engagement had a mediating effect between self-regulated learning ability, perceived usefulness and learning persistence. Fourth, task technology fit had a moderating effect on the relationship between self-regulated learning ability, perceived usefulness, and learning engagement as well as a moderated mediating effect on the relationship between self-regulated learning ability, perceived usefulness, and learning persistence. The importance of designing a learning environment to enhance learning persistence in K-MOOC was discussed.

증례: 다양한 종류의 외상 후에 발생한 흉터 유육종증

김효진 ( Hyojin Kim ),설정은 ( Jung Eun Seol ),박인호 ( In Ho Park ),강정난 ( Jeong Nan Kang ),성호석 ( Ho Suk Sung ),정소영 ( So Young Jung ) 대한피부과학회 2014 대한피부과학회지 Vol.52 No.5

Scar sarcoidosis is a rare variant of cutaneous sarcoidosis that develops from an inactive scar. Scars due to various traumas including surgery, vaccines, cosmetic tattoos, and herpes zoster have been reported to be associated with sarcoidosis. Subcutaneous nodules are the most common clinical feature in Korean cutaneous sarcoidosis followed by papules and erythema. Non-caseating granulomas with a sparse lymphocytic infiltrate that are referred to as “naked granulomas” are the characteristic histopathological feature of cutaneous sarcoidosis. Two female patients aged 45 and 61 years presented with subcutaneous nodules on both blepharoplasty scars. A 46-year-old female also presented with subcutaneous nodules on scars on the palm and perineum obtained subsequent to trauma and episiotomy, respectively. Chest radiography showed bilateral hilar lymphadenopathy in the third patient. A diagnosis of sarcoidosis was made in all 3 patients based on clinical and histopathological findings with the exclusion of other granulomatous diseases. Herein, we report 3 cases of scar sarcoidosis arising from various types of traumatized skin. (Korean J Dermatol 2014;52(5):337∼340)

파종 대상포진의 역학 및 임상양상

김효진 ( Hyojin Kim ),강정난 ( Jeong Nan Kang ),설정은 ( Jeong Nan Kang ),서종근 ( Jong Keun Seo ),성호석 ( Ho Suk Sung ) 대한피부과학회 2013 대한피부과학회지 Vol.51 No.7

Background: There have been several studies about herpes zoster in the Korean dermatological literatures. However, there are few studies reported on disseminated herpes zoster. Objective: The aim of this study is to determine the epidemiology and clinical features of the disseminated herpes zoster as compared with herpes zoster. Methods: The authors retrospectively reviewed the medical records on 14 cases of disseminated herpes zoster and 402 cases of herpes zoster at the Department of Dermatology Busan Paik hospital during the 3 years from 2010 to 2012, and if necessary, telephone interviews were executed. Results: The rate of new disseminated herpes zoster outpatients at our dermatology clinic was 0.11% with the mean age of 67.7 years and the males to females ratio was 2.5. The most frequent involved dermatome was the lumbar (42.9%) area. The rate of patients with underlying diseases or immunosuppression, the rates of postherpetic neuralgia and the frequency of narcotic analgesics uses were significantly higher in disseminated herpes zoster as compared with herpes zoster. The patient treatment satisfaction was significantly higher in herpes zoster as compared with disseminated herpes zoster. Conclusion: These results demonstrated that the disseminated herpes zoster is associated with higher rates of underlying diseases, immunosuppression, frequent incidences of postherpetic neuralgia, more uses of narcotic analgesics and lower patient treatment satisfactions as compared with herpes zoster. (Korean J Dermatol 2013; 51(7):507∼512)