도시공원 유형별 수목의 탄소흡수량 분석

이태균(Tae-gyun Lee),박재민(Jae-min Park) 한국정보통신학회 2023 한국정보통신학회 종합학술대회 논문집 Vol.27 No.1

탄소중립 시대 수목은 도시의 유일한 탄소흡수원으로 중요성이 부각되고 있으며, 관련한 다양한 연구 및 국가적 인증제 도입 등이 논의되고 있다. 하지만 현재 도시공원에서 얼마나 많은 탄소를 저장하고 흡수하고 있는지에 관한 연구는 부족하다. 이에 본 연구에서는 대표적 도시공원 유형별(근린공원, 소공원, 어린이공원)로 탄소흡수량의 평균값과 영향 요인을 분석하고자 하였다. 수목 개체별 탄소흡수량은 I-Tree Eco를 활용하여 개체목 단위로 산출하였고, 유형 별 각 5개소를 대상으로 탄소흡수량을 분석하여 평균값을 도출하였다. SPSS를 이용하여 도시공원의 유형별 탄소흡수량에 영향을 끼치는 요인을 상관분석하였다. 분석 결과 식재 밀도 및 식재 규격이 탄소흡수량에 높은 상관성을 보였다. 본 연구는 도시공원 유형별 평균적 탄소흡수량을 도출함으로써, 향후 탄소 저감설계 및 도시공원 관련 탄소중립 정책 기준 지표의 기초 자료로 의의를 가진다. The importance of urban trees as the sole carbon sink in the era of carbon neutrality has been highlighted, and various studies and national certification systems are being discussed. However, there is a lack of research on the amount of carbon stored and absorbed by urban parks. Therefore, this study aimed to analyze the average amount of carbon absorption and its influencing factors for representative types of urban parks (neighborhood parks, small parks, and childrens parks). The carbon absorption amount per tree was calculated using I-Tree Eco at the individual tree level, and the carbon absorption amount was analyzed for five parks of each type to obtain the average value. In addition, SPSS was used to perform correlation analysis on factors influencing the amount of carbon absorption by urban park type. The main factors affecting the carbon absorption amount in urban parks were found to be green coverage rate, tree species, and planting density. This study provides important basic data on the average carbon absorption amount by urban park type, which can be used as a basis for future carbon reduction design and the development of carbon neutrality policy standards related to urban parks.

논문 : 국립공원 탐방로 내 위험 급경사지 유지관리 방안 연구

김홍균 ( Hong Gyun Kim ),김태호 ( Tae Ho Kim ),김재학 ( Jae Hak Kim ),곽재환 ( Jae Hwan Kwak ),박성욱 ( Sung Wook Park ),최수원 ( Soo Won Choi ),송영갑 ( Young Karb Song ) 대한지질공학회 2016 지질공학 Vol.26 No.1

국립공원은 주로 산악 지형 내 조성되어 있으므로 산사태에 의한 피해 가능성을 항상 내포하고 있다. 본 연구는 산사태 연구의 일환으로 국립공원 탐방로 내 위험 급경사지를 체계적으로 유지관리하기 위한 방안을 마련하는데 목적이 있다. 국립공원에 특화된 자체 체크리스트를 제작하였으며, 전국 19개 국립공원 183개소 급경사지에 대한 실태조사가 이루어졌다. 실태조사의 최종 목적은 위험 급경사지에 대한 안정화 대책을 마련하는 것으로 현장조사와 안정해석의 과정을 거친다. 일부 급경사지에서는 위험성 판단을 위해 지상라이다 등 특수 장비를 이용한 조사를 시도하였다. 중장기 정비계획을 위한 투자우선순위 공식을 개발하였으며, 현장자료를 이용한 순위 및 위험등급을 산출하였다. 최종적으로 위험 급경사지의 향후 체계적인 관리를 위해 “국립공원 급경사지 유지관리시스템”을 개발하였으며, 모든 현장자료들은 시스템 내 DB화 되었다. National parks, which are located mainly in mountainous areas, are always at risk of damage by landslides. The goal of this study is to establish a method for systematically maintaining hazardous steep slopes along trails in national parks. We produced a checklist suitable for each of the 19 national parks nationwide and investigated 183 slopes. The aim of these investigations is to recommend appropriate slope-stability countermeasures, including field investigations and stability analysis. We made preliminary investigations at specific sites, evaluating the slope hazard using specialized equipment such as terrestrial LiDAR. An investment priority formula was developed, and ranking and hazardous grades were calculated as part of a long-term maintenance plan. Finally, to systematically manage dangerous slopes and to house all the field data within one system, we developed the “Slope Maintenance System in National Parks” based on web server that can show various information for slopes.

청소년 도덕적 품성화 검사 도구 개정 연구(2차년도)

류숙희 ( Sook Hee Ryue ),이인재 ( In Jae Lee ),김영한 ( Young Han Kim ),박균열 ( Gyun Yeol Park ),홍성훈 ( Seong Hoon Hong ),전종희 ( Jong Hee Jeon ),윤영돈 ( Young Don Yoon ) 한국윤리교육학회 2013 윤리교육연구 Vol.0 No.29

본 연구는 한국 청소년들의 도덕적 품성화 능력을 측정하기 위한 검사 도구를 개발하기 위한 것으로 2011년도에 개발된 검사 도구를 수정 및 보완한 것이다. 즉, J. Rest가 주장한 도덕성의 제4요소인 도덕적 품성화에 관한 선행연구들을 체계적으로 분석하여 도덕적 품성화의 개념을 보다 명확히 하였고, 1차년도에 설정한 도덕적 품성화의 구성 요소를 개인품성과 관계품성의 두 항목으로 재설정하였다. 또한 검사의 신뢰도와 타당도를 높이기 위해 기존의 스토리와 문항을 수정하였다. 응답의 편포성을 완화하기 위해 2차년도에는 7점 척도를 사용하였다. 예비조사는 전국 중학교 2학년생 409명을 대상으로 실시되었고, 본조사는 전국 6,216명의 중학교 2학년생을 대상으로 실시되었다. 개발된 검사도구의 신뢰도계수(문항 내적 일치도인 크론바흐 알파)는 .90이상으로 신뢰할만했다. 타당도를 확보하기 위해 요인분석을 실시했는데, 도덕적 품성화 능력 검사는 1개 문항을 제외하고 모든 문항이 예정된 요인으로 묶였다. 그리하여 2차년도 연구를 통한 최종 스토리는 총 세 개(과제, 놀이공원, 작품)로 확정되었고, 각 스토리별 문항수는 과제 10개 문항, 놀이공원 9개 문항, 작품 10개 문항으로 총 29개 문항으로 확정되었다. 2차년도 연구결과 개정된 검사 도구는 2011년 검사 도구에 비해 더 안정된 검사도구로서 향후 청소년의 도덕적 품성화 측정을 위한 연구와 실무에 활용될 수 있을 것이다. The study aims to revise Moral Character Test I which was set for adolescents based on Rest`s four components model in 2011 and make standardized final morality test. In theory, this study is based on the four components theory of James Rest who invented DIT (Defining Issues Test) to measure the moral judgment. The four components are composed of moral sensitivity, moral judgment, moral motivation, and moral character (or moral implementation, moral action). This study focused on moral character. This 2nd year study could get some significant outcomes. To make test form, 3 components relating teams have closely exchanged informations. Because teams have to share same real life stories as follows: “homework inspect”, “on going to park”, “broken art work”. The questionnaire used seven likert type to lessen the far epistemological tendency. To represent moral character, research team used personal character and interpersonal character. To get final form of morality test, this study was made two sequential steps. First one was pre-test which was for 409 respondents. Second main one was for 6,216 respondents. For moral character, the reliability was highly coefficient with Cronbach`s alpha(>.90). The validity was also much improved and stable. But just in the story “on going to park”, the factor analysis shows a little bit limitation result. Even though, 1st and 2nd researches have common weak point which is highly dependent upon not factor but story. Through these processes, to test moral motivation, this study shows 3 stories and 29 questions. And this recommends that just one simple story might be developed for one component(moral character).

청소년 도덕적 동기화 검사 도구 개정 연구(2차년도)

전종희 ( Jong Hee Jeon ),이인재 ( In Jae Lee ),김영한 ( Young Han Kim ),박균열 ( Gyun Yeol Park ),윤영돈 ( Young Don Yoon ),류숙희 ( Sook Hee Ryue ),홍성훈 ( Seong Hoon Hong ) 한국윤리교육학회 2013 윤리교육연구 Vol.0 No.29

본 연구는 J. Rest의 4구성요소 모형을 바탕으로 1차년도(2011년)에 개발된 도덕적 동기화 검사를 보다 신뢰롭고 타당한 도구로 개정하는 것이다. 따라서 선행연구를 보완하여 도덕 동기화의 구성 요소를 도덕지향성과 도덕적 정서귀인 등 두 항목으로 재설정하고, 스토리와 문항을 수정하였다. 개발된 세 개의 스토리(과제, 놀이공원, 작품) 별로 신뢰도를 분석한 결과, 전반적으로 .90 내외의 높고 수치를 보였다. 응답의 편포성을 완화하기 위해 2차년도에는 7점 척도를 사용하였다. 예비조사를 위해서는 전국 중학교 2학년생 409명을 대상으로 했고, 본조사를 위해서는 전국 6,216명의 중학교 2학년생을 대상으로 실시하였다. 개발된 검사도구의 신뢰도계수(문항 내적 일치도인 크론바흐 알파)는 .90이상으로 신뢰할만했다. 타당도를 검증하기 위하여 요인분석을 실시한 결과, 과제 스토리와 놀이공원 스토리의 일부 문항이 가정한 요인으로 잘 묶이지 않았는데 이 문항들을 제거하고 요인분석을 다시 실시해본 결과 기대하는 바를 충족했다. 그리하여 2차년도 연구를 통해 최종 스토리는 총 세 개(과제, 놀이공원, 작품)로 확정되었고, 각 스토리별 문항수는 과제 9개 문항, 놀이공원 9개 문항, 작품 10개 문항으로 총 28개 문항으로 확정되었다. 본 연구를 통해 수정 확정된 도덕적 동기화 검사도구는 상당히 안정적인 신뢰도와 타당도를 확보하였기에, 향후 우리나라 청소년의 도덕적 동기화 능력을 측정하기 위한 검사도구로 활용되기에 적절할 것으로 판단된다. The study aims to revise Moral Motivation Test I which was set for adolescents based on Rest`s four component model in 2011 and make standardized final morality test. In theory, this study is based on 4 components theory of James Rest who invented DIT (Defining Issues Test) to measure the moral judgment. The 4 components are composed of moral sensitivity, moral judgment, moral motivation, and moral character (or moral implementation, moral action). This study focused on moral motivation. This 2nd year study could get some significant outcomes. To make test form, 3 components relating teams have closely exchanged informations. Because teams have to share same real life stories as follows: “homework inspect”, “on going to park”, “broken art work”. The questionnaire used seven likert type to lessen the far epistemological tendency. To represent moral motivation, research team used moral orientation, moral emotion attributions. To get final form of morality test, this study was made two sequential steps. First one was pre-test which was for 409 respondents. Second main one was for 6,216 respondents. For moral motivation, the reliability was highly coefficient with Cronbach`s alpha(>.90). The validity was also much improved and stable. But just in the story “homework inspect”and “on going to park”, the factor analysis shows a little bit limitation result. Eliminated those questions, the result of factor analysis was more stable and reliable. Through these processes, to test moral motivation, this study shows 3 stories and 28 questions. And this recommends that just one simple story might be developed for one component(moral motivation).

Slide Session : OS-IFD-07 ; Infectious Disease : In Vitro Antiviral Activity of Ribavirin Against Severe Fever with Thrombocytopenia Syndrome Virus

( Myung Jin Lee ),( Kye Hyung Kim ),( Jong Youn Yi ),( Su Jin Choi ),( Chung Jong Kim ),( Nak Hyun Kim ),( Kyoung Ho Song ),( Pyoeng Gyun Choi ),( Ji Hwan Bang ),( Wan Beom Park ),( Eu Suk Kim ),( San 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

In Vitro Antiviral Activity of Ribavirin Against Severe Fever with Thrombocytopenia Syndrome Virus Myung Jin LEE1, Kye-Hyung KIM1, Jongyoun YI2, SuJin CHOI1, Chung-Jong KIM1, Nak- Hyun KIM1, Kyoung-Ho SONG1, Pyoeng Gyun CHOI1, Ji-Hwan BANG1, Wan Beom PARK1, Eu Suk KIM1, Sang-Won PARK1, Hong Bin KIM1, Nam Joong KIM1, Myoung- Don OH1 Seoul National University College of Medicine, Korea1, Pusan National University School of Medicine, Korea2 Background: Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease caused by a novel Bunyavirus, severe fever with thrombocytopenia syndrome virus (SFTSV). No effective antiviral therapy is proven yet, but clinical use of ribavirin (RBV) has been tried. We investigated the antiviral effect of RBV against SFTSV in vitro. Methods: To test for cytotoxicity of RBV, Vero cells were treated with different concentrations of RBV (3.90 to 500 μg/mL, two-fold dilution) and analyzed by cell viability MTS assay 48h post-infection. To determine antiviral activity of RBV against SFTSV, Vero cells were infected with SFTSV strain Gangwon/Korea/2012 at 100 TCID50 (50% tissue culture infective dose) per well in a 96-well plate, and RBV was added at the concentrations showing no or minimal cytotoxicity. Viral RNAs were extracted from the culture supernatants and quantifi ed using one-step real-time reverse transcription- PCR to amplify the partial large segment of SFTSV. Statistical analysis was done by one-way ANOVA with Tukey`s post hoc test. Results: Cytotoxicity due to RBV was not observed at RBV concentration =31.3 μg/ mL. Viral RNAs at 24h post-RBV treatment were reduced with increasing RBV concentrations (1-32 μg/mL), compared with those of mock-treated cells (P <0.01, Figure). Half maximal inhibitory concentration (IC50) of RBV was 3.69 μg/mL at 24h post-RBV treatment. Conclusions: Our study shows that RBV has antiviral effect against SFTSV in a dose-dependent manner. Further studies are required to evaluate the effi cacy of RBV in SFTS.

자궁내막에 발생한 점막 연관 림프조직 (MALT) 림프종 1예

전균호,조현진,박성균,김천복,김대연,김종혁,김용만,김영탁,목정은,남주현 대한부인종양 콜포스코피학회 2003 Journal of Gynecologic Oncology Vol.14 No.4

Non-Hodgkin's 림프종의 약 40%는 결절외(extranodal) 림프종으로 대개 위장관에서 발생하며 이들 중 점막 연관 림프조직(mucosa-associated lymphoid tissue: MALT)에서 기원한 림프종은 MALT 림프종으로 분류된다. 위 외의 부위에서 원발성으로 발생하는 MALT 림프종은 매우 드물지만 실제 거의 모든 신체 장기에 발생하는 것으로 알려져 있는데, 가장 흔한 부위인 위 외에도 폐, 갑상선, 침샘, 눈물샘에 발생하고, 드물게 안구, 유방, 방광, 신장, 흉선 등에도 보고된 바 있다. MALT 림프종은 오랜 기간동안 원격 전이하지 않고 국소 병변으로 남아 있는 특징이 있어 치료 방향 또한 국소 병변의 치료에 집중되며, 예후도 림프절 기원의 림프종에 비해 양호한 것으로 알려져 있다. 본 저자 등은 자궁 내막에 원발성으로 발생한 MALT 림프종 1예를 경험하였기에 문헌 고찰과 함께 이를 보고하고자 한다. Mucosa associated lymphoid tissue (MALT) lymphoma can rarely develop primarily in extranodal sites other than stomach which is the most common site for it. Other rare primary sites are small intestine, colorectum, esophagus, lung, thyroid, salivary gland, lacrymal gland, breast and skin. MALT lymphoma represents a distinct clinicopathologic features: it is usually localized to their original site for a long time and shows much more favorable prognosis than lymphoma at other site, but some MALT lymphoma can arise simultaneously or successively in different organ or give rise to another MALT lymphoma of other organ and can be multifocally disseminated or recurred. We report a very rare case of high grade B-cell lymphoma of mucosa associated lymphoid tissue (MALT) of the uterine endometrium, which was confirmed by immunohistochemical assay.

유기용매 추출법과 산가수분해에 의한 포플라의 전처리 및 효소당화액을 이용한 생물고분자의 생산에 관한 연구

김균성,박정극 동국대학교 산업기술대학원 1993 산업기술논문집 Vol.1 No.-

In this study the lignocellulosic biomass, Italy poplar, was pretreated by the chemical pretreatment method, i.e., organic solvent (Phenol/H_2O) extraction. Using Phenol/H_2O solvent system. Wood yield, % delignification and % sacchari-fication(72hours) of poplar after pretreatment at 190℃, 60 min. which was found out as the optimum pretreatment condition, were 46,3%, 96.1% and 83.35% (43.87 g/L) respectively. The possibility of reusing the spent organic solvent and recovery of hemicellulose fraction were also studied. By recycling spent black organic solvent in this process, we obtained an approximately identical results. The percent saccharification of 79.9% (43.6 g/L) was obtained from the recycled process and the degree of delignification was more than 99%. The delignification reactions using Phenol/H_2O solvent system showed two distinct mechanism of pseudo first order reactions (fast and slow), and the activation energy of the fast reaction was 38.4Kcal/gmol. For the recovery of hemicellulose fraction, poplar wood was pretreated using acid as a catalyst at high temperature and low concentration;180℃,0.05%∼0.15 vol% H_2SO_4(HTLC), and also at low temperature and high concentration;120℃,1∼4 vol% H_2SO_4(LTHC). 58% of hemicellulose was recovered whin the Italy poplar was pretreated at 180℃ with 0.1 vol% H_2SO_4 for 10 minutes (HTLC), and 74.4% recovery of hemicellulose fraction was obtained when it was pretreated at 120℃ with 4 vol% H_2SO_4 (LTHC) for 20 minutes, which is considered as an optimum condition for hemicellulose recovery. And after these acid hydrolysis followed by solvent extraction at 190℃, 60 min, the lower amount of sugar was obtained compared to one-step solvent extraction which was studied. As an application of saccharified broth, the culture of Zoogloea remigera 115 which produces biopolymer adsorbing heavy metals (Cu, Fe, Zn, Co etc) was conducted. When saccharified broth was used as a carbon source, the lag phase of the fermantation was longer than that of synthetic glucose media. After 60 hours of fermentation, the maximum cell density of 1.5 g/L was obtained. Final biopolymer concentration was 10.05 g/L after 200 hours of fermentation. Above experimental results showed the possibility of using saccharified broth as a carbon sourse for fermentation media.

절삭가공오차보상을 위한 기상측정 데이터기반 신경회로망의 응용

서태일,박균명,조명우,윤길상 한국공작기계학회 2001 한국공작기계학회 춘계학술대회논문집 Vol.2001 No.-

This paper presents a methodology of machining error compensation by using Artificial Neural Network(ANN) model based on the inspection database of On-Machine -Measurement(OMM) system. First, the geometric errors of the machining center and the probing errors are significantly reduced through compensation processes. Then, we acquire machining error distributions from a specimen work piece. In order to efficiently analyze the machining errors, we define two characteristic machining error parameters. These can he modeled by using an ANN model, which allows us to determine the machining errors in the domain of considered cutting conditions. Based on this ANN model, we try to correct the tool path in order to effectively reduce the errors by using an iterative algorithm. The iterative algorithm allows us to integrate changes of the cutting conditions according to the corrected tool path. Experimentation is carried out in order to validate the approaches proposed in this paper.

연마 다듬질 가공면의 표면 미세형상 평가에 관한 연구

조남규,김현국,권기환,한창수,안유민,이성환,박균명 한국공작기계학회 2000 한국공작기계학회 추계학술대회논문집 Vol.2000 No.-

This paper describes the statistical analysis techniques for the surface roughness assessment of polished surfaces. In experiments, the polishing process of the sample surfaces which are manufactured by ball end mill is consist of two steps; the cusp removal process and the surface finishing process. For the cusp removal process, the criterion of cusp removal was established from the power spectrum analysis to assess the change of the cusp removal rate. For the finishing process, the surface was polished by the rotational CBN tool and vibration wood tool. And the surface quality of polished surface was assessed using the functional parameters based on the statistical values of surface profiles. Consequently, the surface finish performance of the polished surface using the vibration wood tool was improved.

경사로에서 파킹시스템에 전달되는 부하에 대한 연구

임동균(Dong-gyun IM),신택현(Taek-hyun Shin),박찬석(Chan-seok Park),김도윤(Do-yun Kim) 한국자동차공학회 2022 한국자동차공학회 부문종합 학술대회 Vol.2022 No.6

In this study, the purpose that perform parking durability test in the lab, before actual vehicle parking durability test. We confirm the vehicle loads which transfer to parking system in transmission by measuring the drive shaft torque, when parking position and release parking position on slope. We confirm the parking impact torque when parking position on the slope, the parking pull out torque when release parking position, similarity of the calculated hill climbing resistance and actual hill climbing resistance on the vehicle. Furthermore, confirm the linear proportionality between the hill climbing resistance and the vehicle loads. At the result of this study, the behavior of the vehicle loads that transfer to parking system on slope was confirmed, it will improve the accuracy and reliability of the parking system durability test in the lab.