포항분지 덮개암에 대한 지화학적 반응 실험 및 모델링 연구

김선옥,왕수균,이민희,Kim, Seon-ok,Wang, Sookyun,Lee, Minhee 대한자원환경지질학회 2016 자원환경지질 Vol.49 No.5

This study aims to identify the mineraloical and petrographical characteristics of caprock from drilling cores of Pohang basin as a potential $CO_2$ storage site. Experiments and modeling were conducted in order to investigate the geochemical and mineralogical caprock effects of carbon dioxide. A series of autoclave experiments were conducted to simulate the interaction in the $scCO_2$-caprock-brine using a high pressure and temperature cell at $50^{\circ}C$ and 100 bar. Geochemical and mineralogical alterations after 15 days of $scCO_2$-caprock-brine sample reactions were quantitatively examined by XRD, XRF, ICP-OES investigation. Results of mineralogical studies, together with petrographic data of caprock and data on the physicochemical parameters of brine were used for geochemical modeling. Modelling was carried out using the The Geochemist's Workbench 11.0.4 geochemical simulator. Results from XRD analysis for caprock sample showed that major compositional minerals are quartz, plagioclase, and K-feldspar, and muscovite, pyrite, siderite, calcite, kaolinite and montnorillonite were included on a small scale. Results from ICP-OES analysis for brine showed that concentration of $Ca^{2+}$, $Na^+$, $K^+$ and $Mg^{2+}$ increased due to dissolution of plagioclase, K-feldspar and muscovite. Results of modeling for the period of 100 years showed that the recrystallization of kaolinite, dawsonite and beidellite, at the expense of plagioclase and K-feldspar is characteristic. Volumes of newly precipitation minerals and minerals passing into brine were balanced, so the porosity remained nearly unchanged. Experimental and modeling results indicate the interaction between caprock and $scCO_2$ during geologic carbon sequestration can exert significant impacts in brine pH and solubility/stability of minerals.

골격성 III급 부정교합자의 임상적 특성에 따른 심리상태

김선옥,진미영,유병철,Kim, Sun-Ok,Jin, Mi-Young,Yu, Byeng-Chul 한국치위생학회 2015 한국치위생학회지 Vol.15 No.2

Objectives: The purpose of the study is to investigate the psychological state of the patients according to skeletal class III malocclusion symptoms. Methods: The subjects were 200 skeletal class III malocclusion patients. The questionnaire consisted of general characteristics, clinical manifestation, and T score of Korean version of self-rated Symptom Checklist-90-Revision modified by Jae-hwan Kim. The data were analyzed using SAS version 9.2 and t-test, ANOVA, and ANCOVA were used. Clinical manifestation included subjective recognition and radiological analysis. The subjective recognition of the patients consisted of self-satisfaction of the appearance, phonation, mastication, and temporomandibular joint pain. T score consisted of somatization, obsessive-compulsive, interpersonal sensitivity, depression, anxiety, hostility, phobic anxiety, paranoid ideation, and psychoticism. Results: The most serious factor in 9 scales was the severe TMJ pain by ANCOVA. Male patients had a higher T score in phobic anxiety, psyochoticism, somatization and depression than female patients. Those having low appearance satisfaction had the problem in interpersonal sensitivity. Obsessive-compulsive symptoms were conspicuous in phonation difficulty and temporomandibular pain. Conclusions: The patients with skeletal class III malocclusion have more satisfaction with appearance, pronunciation, and phonation than those with skeletal class III malocclusion and overjet. Proper dental treatment will improve the communication and quality of life.

탄자니아산 루비의 열처리에 의한 보석·광물학적 품질개선 연구

김선옥,왕수균,오설미,박희율,박맹언,Kim, Seon-Ok,Wang, Sookyun,Oh, Sul-Mi,Park, Hee Yul,Park, Maeng-Eon 대한자원환경지질학회 2014 자원환경지질 Vol.47 No.6

Ruby is one of the most favor colored gem, for beautiful red tone, be high in scarcity value. However, rubies with high quality are produced in restricted regions, such as in Thailand, Sri Lanka, Myanmar, and Tanzania etc., and they have been gradually exhausted by mining for a long period. Therefore, improving qualities of low level rubies with various treatments is arising an alternative way to obtain better rubies. Gemological and mineralogical properties of the natural ruby from Tanzanian were studied with heat treatments. Those characteristics were compared between only heat and adding flux materials under heating. Tanzanian raw rubies were applied a heat treatment ($1,600^{\circ}C$ for 6 hours). However, chromameter and UV-Vis analyses found that a simple heat treatment is inappropriated for the Tanzanian ruby. Although $Cr^{3+}$ containing for red color in the ruby increased with heat treatment, the ruby displays dark medium red because of Fe in the ruby as a form of $Fe_2O_3$. The low transparency after heat treatment is attributed to the recrystallization of $SiO_2$ which has a low melting point. Chromameter confirmed adding Pb-containing flux under heating greatly improves the clarity and color of Tanzanian rubies with micro-fractures and cavities on the surface. EMPA results show that Pb as an additive fills the cavities and cracks on raw Tanzanian rubies during the heat treatment. As a rewult of it, the quality of the Tanzanian ruby raw dramatically improved. These results indicate that the heat treatment with an additive (Pb in this study) is an effective way to obtain better quality of the Tanzanian ruby. Consequently, this study suggests a suitable method to improve the properties of the Tanzanina ruby. The result of this study would provide useful information to upgrade the qualities of similar gem stones such as corundum and sapphire.

항해과실과 (航海過失) 상업과실에 (商業過失) 대한 해상운송인의 법적 책임

김선옥,이은섭 ( Seon Ok Kim,Eun Sup Lee ) 한국해운물류학회 1998 해운물류연구 Vol.27 No.-

해남 모이산 인근 토양 및 농작물의 셀레늄(Se) 분포 특성

김선옥,천세원,박규령,왕수균,Kim, Seon-Ok,Cheon, Se Weon,Park, Gyu-Ryeong,Wang, Sookyun 대한자원환경지질학회 2015 자원환경지질 Vol.48 No.3

해남 모이산 천열수 광산 주변의 열수변질작용에 의한 암석, 토양과 농작물간의 셀레늄의 상호작용을 규명하기 위하여, 모이산 인근의 토양과 농작물 시료를 채취 분석하였다. 토양시료는 6개의 산 토양과 6개의 밭 토양을 대상으로 수분함량, pH, ICP, XRD, XRF 분석을 통해 구성 광물과 원소함량을 분석하였으며, 농작물 시료는 토양과의 관계를 파악하기 위해 이 지역에서 재배된 양파와 대파를 대상으로 원소함량을 분석하였다. 토양에 대한 XRD 분석 결과, 주요 구성광물은 석영과 장석이며, 그 외 열수변질작용에 의해 일라이트, 녹니석과 적철석을 포함하고 있는 것으로 나타났다. 산 토양과 밭 토양의 pH는 각각 4.6~4.9와 5.2~6.7로 나타났는데, 산 토양에 비하여 밭 토양의 pH가 높게 나타난 것은 영농에 의한 비료시비가 원인으로 판단되었다. 원소함량 분석 결과, 비료의 영향이 크게 작용하는 밭 토양에서 산 토양에서는 검출되지 않았던 K(24.81~79.49 ppm), Ca(29.27~116.33 ppm) 등이 다량 함유한 것으로 나타났다. 이러한 경향은 작물에서도 나타나는데, 상대적으로 높은 농도의 K(116.89~169.79 ppm), Ca(20.18~32.29 ppm)가 농작물에 흡수되어 있는 것으로 분석되었다. 토양 시료에서의 Se 함량은 18.35~70.31 ppb의 범위로 분석되어 분석 시료간 유의미한 차이를 나타내지는 않았으나, 양파(119.48~179.50 ppb)와 대파(146.65 ppb)에서는 많은 양의 Se이 검출되었다. 이는 작물에 따라 각 원소에 대한 흡수율이 상이하여 농축도 역시 다르게 나타나는 것으로 판단되었다.

서산 웅도 백운암 내 석면 산출 및 광물학적 특성 규명

김선옥,이민희,정현정,신원지,Kim, Seon-Ok,Lee, Minhee,Jung, Hyunjung,Shin, Wonji 대한자원환경지질학회 2014 자원환경지질 Vol.47 No.5

본 연구는 충청남도 서산시 웅도 백운암에서 산출되는 석면에 대하여 박편관찰, X-선 회절분석, 주사전자현미경 관찰 등을 통해 석면의 광물학적 및 형태적 특성을 규명하고, 백운암의 광물학적 특성과의 상관관계를 통해 석면의 형성과정을 알아보고자 하였다. 연구 결과, 석면을 함유하고 있는 모암은 열수 변질 및 변성작용을 받았으며, 광물학으로는 주로 백운석과 소량의 방해석, 석영, 활석, 각섬석, 휘석 등으로 이루어진 백운암인 것으로 밝혀졌다. 모암 내 존재하는 석면은 섬유상-침상 입자형태를 가진 양기석-투각섬석계 석면이었으나, 변성정도에 따라 주상 및 침상형태를 가진 비석면형의 양기석-투각섬석도 존재하는 것이 확인되었다. 주상이나 침상 형태의 광물을 전자현미경으로 분석한 결과, 주상의 경우 벽개면을 따라 더 작은 침상 또는 주상의 입자로 쪼개지는 특성을 나타내어, 풍화과정에 의한 쪼개짐 현상에 의해 석면입자로 산출될 수 있음을 알 수 있었다. 특히 양기석-투각섬석 광물군에서 너비가 $1{\mu}m$ 이하인 휘어진 형태의 섬유상 석면 입자가 발견되었다. 기존 연구에서는 백운암 내에서 거의 발견되지 않았던 석면 입자가 웅도 백운암에서 검출되었고, 광물학적 분석 결과 석면광물은 Ca, Mg를 함유한 백운암질 석회암이 열수 변질을 받는 과정에서 형성되었으며, 주로 양기석-투각섬석 석면형태로 존재하는 것으로 밝혀졌다.

광물성 약재(광물약)의 표준화에 관한 연구

김선옥,박맹언,Kim, Seon-Ok,Park, Maeng-Eon 대한자원환경지질학회 2015 자원환경지질 Vol.48 No.3

Oriental mineral medicines are single or mixture of more than one mineral species or rock/fossil which are used to treat disease. Mineral medicines remove harmful or useless substances to decrease toxicity and secondary effects, and cause the manufacture of medical compounds with increased efficacy. The extraction test is an accepted in vitro system to predict the bioaccessibility of major and minor elements from mineral medicine. It incorporates gastrointerstinal tract parameters representative of a human body that including stomach and small intestinal pH which are the same as digestion condition. The bioaccessibility of a mineral medicine is the fraction that is soluble in the gastrointestinal environment and is available for absorption. Reaction path modeling in the human body can predict digestion with gastric fluid as well as absorption in the small intestine, existence in body fluids and reaction progress of the exhaust process according to pH conditions in body. Also reaction path modeling can predict bioavailability, which is equal to existence rate in the body and the form and amount of a medicine in the body after intake. The study results from predicating the existence form mineral medicines in the body, and proving the effective ingredient using bioaccessibitily and human risk assessment, suggest these that should be necessary data for new medicine development.

골격성 3급 부정교합자의 임상적 특성에 따른 심리상태

김선옥 ( Sun Ok Kim ),진미영 ( Mi Young Jin ),유병철 ( Byeng Chul Yu ) 한국치위생학회 2015 한국치위생학회지 Vol.15 No.2

Objectives: The purpose of the study is to investigate the psychological state of the patients according to skeletal class Ⅲ malocclusion symptoms. Methods: The subjects were 200 skeletal class Ⅲ malocclusion patients. The questionnaire consisted of general characteristics, clinical manifestation, and T score of Korean version of self-rated Symptom Checklist-90-Revision modified by Jae-hwan Kim. The data were analyzed using SAS version 9.2 and t-test, ANOVA, and ANCOVA were used. Clinical manifestation included subjective recognition and radiological analysis. The subjective recognition of the patients consisted of self-satisfaction of the appearance, phonation, mastication, and temporomandibular joint pain. T score consisted of somatization, obsessive-compulsive, interpersonal sensitivity, depression, anxiety, hostility, phobic anxiety, paranoid ideation, and psychoticism. Results: The most serious factor in 9 scales was the severe TMJ pain by ANCOVA. Male patients had a higher T score in phobic anxiety, psyochoticism, somatization and depression than female patients. Those having low appearance satisfaction had the problem in interpersonal sensitivity. Obsessive-compulsive symptoms were conspicuous in phonation difficulty and temporomandibular pain. Conclusions: The patients with skeletal class Ⅲ malocclusion have more satisfaction with appearance, pronunciation, and phonation than those with skeletal class Ⅲ malocclusion and overjet. Proper dental treatment will improve the communication and quality of life.

포항분지 영일층군 내 이산화탄소 주입에 의한 물-덮개암-가스 반응에 대한 지화학적 모델링

김선옥,왕수균,이민희,Kim, Seon-ok,Wang, Sookyun,Lee, Minhee 대한자원환경지질학회 2021 자원환경지질 Vol.54 No.1

This study is to identify the mineralogical properties of caprock samples from drilling cores of the Pohang basin, which is the research area for the demonstration-scale CO2 storage project in Korea. The interaction of water-rock-gas that can occur due to CO2 injection was identified using geochemical modeling. Results of mineralogical studies, together with petrographic data of caprock and data on the physicochemical parameters of pore water were used for geochemical modeling. Modelling was carried out using the The Geochemist's Workbench 14.0.1 geochemical simulator. Two steps of modeling enabled prediction of immediate changes in the caprocks impacted by the first stage of CO2 injection and the assessment of long-term effects of sequestration. Results of minerlaogical analysis showed that the caprock samples are mainly composed of quartz, K-feldspar, plagioclase and a small amount of pyrite, calcite, kaolinite and montmollonite. After the injection of carbon dioxide, the porosity of the caprock increased due to the dissolution of calcite, and dawsonite and chalcedony were precipitated as a result of the dissolution of albite and k-feldspar. In the second step after the injection was completed, the precipitation of dawsonite and chalcedony occurred as a result of dissolution of calcite and albite, and the pH was increased due to this reaction. Results of these studies are expected to be used as data to quantitatively evaluate the efficiency of mineral trapping capture in long-term storage of carbon dioxide.

거문고 연주법에 관한 연구

김선옥(Kim Sun-Ok) 한국국악교육학회 2007 국악교육 Vol.25 No.-

This dissertation aims to investigate the geomungo performing technique on the basis of Sangyongsan in Julpungryu. Julpungryu is a chamber ensemble which was performed by the literati of the late Joseon period. It is a suite comprising nine pieces and is used various geomungo performing techniques. The geomungo players express their musical ambience with these techniques. Therefore the same piece is performed different techniques according to the players. On the basis of this point, this study researched geomungo techniques which were used on Sangryongsan in Julpungryu through various player's performing. And It sought after player's musical character and significance of these character. First, I examined chapter division of Sangryongsan in Julpungryu according to players on the subject for ten kinds of musical book and musical recording tape. As a result, there are four group of chapter division of Julpungryu. Gungnip-gugakwon(國立國樂院), Iwangchik-aakbu(李王職雅樂部), Yu Changhwan, Chang Insik belong to first group and their chapter division is almost same. Iri-pungryu, Sin Kwaedong, Kim Yundeok belong to second group and succeed to Kim Gyeongnam who is effected geomungo music of Cheonbuk District. Im Seokyun, Cheong Gyeongtae belong to third group and Kim Gukp'a, Han Useok is fourth group. We could understand to relation to pass down Julpungryu through these chapter division of Julpungryu. Geomungo performing technique of Julpungryu according to players, I examined various geomungo performing technique used on Sangryongsan in Julpungryu. In playing Julpungryu with geomungo, there are Daejeom(大點), Igim, Tteul(뜰), Tteuldong(뜰동) techniques with right hand which holds Suldae. And There are Nonghyun(弄絃, vibration), Chuseong(推聲), Toiseong(退聲), Jeonseong(全聲) and Jachul(自出) techniques with left hand. Daejeom is used to emphasize the note or on the strong beat. Daejeom appeared 55 times in Han Useok, 10 times in Sin Kwaedong, 43 times in Im Seokyun, 44 times in Iri-pungryu, 41 times in Cheong Gyeongtae, 62 times in Chang Insik. Igim appeared 31 times in Han Useok, 10 times in Sin Kwaedong, 43 times in Im Seokyun, 44 times in Iri-pungryu, 41 times in Cheong Gyeongtae, 62 times in Chang Insik. Tteul appeared 35 times in Gungnip-gugakwon, 34 times in Iwangchik-aakbu, 43 times in Han Useok, 41 times in Yu Changhwan, 36 times in Sin Kwaedong, 46 times in Im Seokyun, 53 times in Iri-pungryu, 59 times in Cheong Gyeongtae, 54 times in Chang Insik. Tteuldong appeared 3 times in Chang Insik. Nonghyun appeared 8 times in Sin Kwaedong, 3 times in Im Seokyun, 3 times in Iri-pungryu, 12 times in Cheong Gyeongtae, 50 times in Chang Insik. Chuseong appeared 16 times in Gungnip-gugakwon, 4 times in Iwangchik-aakbu, 10 times in Sin Kwaedong, 4 times in Im Seokyun, 6 times in Iri-pungryu, 6 times in Cheong Gyeongtae, 20 times in Chang Insik, 7 times in Kim Yundeok. Toiseong appeared 33 times in Gungnip-gugakwon, 5 times in Iwangchik-aakbu, 5 times in Han Useok, 3 times in Yu Changhwan, 14 times in Sin Kwaedong, 7 times in Im Seokyun, 5 times in Iri-pungryu, 33 times in Cheong Gyeongtae, 20 times in Chang Insik, 12 times in Kim Yundeok. Jeonseong appeared 6 times in Gungnip-gugakwon, 9 times in Iwangchik-aakbu, 8 times in Yu Changhwan. Jachul appeared 9 times in Gungnip-gugakwon, 8 times in Iwangchik-aakbu, 8 times in Han Useok, 9 times in Yu Changhwan, 16 times in Sin Kwaedong, 18 times in Im Seokyun, 20 times in Iri-pungryu, 18 times in Cheong Gyeongtae, 25 times in Chang Insik.