리간드교환 크로마토그래피에 의한 DNP-아미노산의 고성능 액체 크로마토그래피적 분리

李善行,吳岱燮,柳在旭,尹水弘 慶北大學校 1984 論文集 Vol.37 No.-

Some derivatized DNP-amino acids can be separated by a ligand exchange chromatography, in which several libile metal chelates are added to the mobile phase of a reversed phase column. Cu^2+, Zn^2+, Cd^2+, or Ni^2+ as a central metal and L-Proline, L-Hydroxyproline, or L-Arginine as a ligand are added to the mobile phase. The DNP-amino acids separated were detected by a UV detector at 360nm. The retention times of the DNP-amino acids are different according to the use of different central metal ions. These behaviors can be explained as a ligand exchange capability. The retention time increased slightly with increase in metal chelate concentration. The separation selctivity was greatly varied with the composition of acetonitrile in the mobile phase. In DNP-amino acid separation, the variation in pH and temperature greatly affect the retention time: the increase in pH or temperature decreases the retention time. Enthalpy and entropy values for the chromatographic retention of the DNP-amino acids are calculated from the retention data by evaluation of Van’t Hoff plots. These values are dependent on the hydrophobic effect and/or ligand exchange capability.

다금속 이온의 분광광도법적 정량에 대한 일반화 표준물 첨가법의 응용

李善行,吳岱變,柳在旭 경북대학교 교육대학원 1985 논문집 Vol.17 No.-

A spectrophotometric determination method for Ni^2+, CO^2+, Cu^2+ and Cr^3+ is described. The analytical method is carried out by the generalized standard addition method (GSAM). The metal complexes formed by ethylendediamine tetraacetic acid (EDTA) were used for the measurement of the absorbance in the aqueous sample by adding the standard sample solutions. The results obtained were calculated by the two methods: incremental difference computation (IDC) and total difference computation (TDC). The effects of the wavelength selection for the GSAM are discussed. This method can be applied to the multicomponent analysis with less than 3.0% of relative errors.

중학생의 부모애착과 학업스트레스의 관계에서 자기통제력의 매개효과

이선행,황혜정 한국청소년학회 2018 청소년학연구 Vol.25 No.9

The purpose of this study is to verify the mediating effect of self - control on the relationship between parental attachment and academic stress perceived by middle school students. For this purpose, 348 students in three middle schools in Gyeonggi province were surveyed for their parent attachment, academic stress and self – control. Using SPSS 21.0, descriptive statistics, correlation analysis and multiple regression analysis were conducted to verify the mediating effect. Finally, the sobel test was performed. The results of this study are as follows. First, middle school students 'parent attachment and self - control had a significant negative correlation with academic stress, and middle school students' parent attachment and self - control had a significant positive correlation. Second, impulsivity, simplicity, self - centeredness, and anger, which are sub - factors of trust, communication, alienation and self – control, Also, sub - factor of parent attachment affects self – control. Third, the sub - factors of self - control, such as simplicity, self - centeredness, anger and self - control, were partially mediated in the relationship between parental attachment and academic stress, Impulsivity, risk weight composition, and physical activity did not play a mediating role. The results of this study suggest that it is necessary to increase parental attachment level and self - control in order to lower the academic stress of middle school students. 본 연구는 중학생이 지각한 부모애착과 학업스트레스의 관계에서 자기통제력의 매개효과를 검증하는 데 목적이 있다. 이를 위하여 경기도 지역의 3개 중학교 학생 348명을 대상으로 부모애착, 학업스트레스, 자기통제력을 측정하는 설문지를 실시한 후 자료를 분석하였다. SPSS 21.0을 사용하여 기술통계와 상관분석, 중다회귀분석을 실시하여 매개효과를 검증하였고 마지막으로 sobel 검증을 하였다. 본 연구의 결과는 다음과 같다. 첫째, 중학생의 부모애착과 자기통제력은 학업스트레스와 유의미한 부적 상관을 가지는 것으로 나타났고, 중학생의 부모애착과 자기통제력은 유의미한 정적 상관을 가지는 것으로 나타났다. 둘째, 중학생의 부모애착 전체와 부모애착 하위 요인인 신뢰감, 의사소통, 소외감과 자기통제력 전체와 자기통제력의 하위요인인 충동성, 단순성, 자기중심성, 분노는 학업스트레스에 영향을 미치는 것으로 나타났다. 또한 부모애착의 전체와 부모애착의 하위요인 모두 자기통제력에 영향을 미치는 것으로 나타났다. 셋째, 자기통제력의 하위요인인 단순성, 자기중심성, 분노와 자기통제력 전체는 부모애착과 학업스트레스의 관계에서 부분 매개하는 것으로 나타났고, 자기통제력의 하위요인인 충동성, 위험추구성, 신체활동성은 매개역할을 하지 않는 것으로 나타났다. 본 연구의 결과는 중학생의 학업스트레스를 낮추기 위해서 부모애착 수준과 자기통제력을 높일 필요가 있음을 시사한다.

한국어판 아동식습관 설문지를 사용한 식욕부진 소아의 식욕 개선 평가

이선행,김초영,장규태,Lee, Sun-Haeng,Kim, Cho-Young,Chang, Gyu-Tae 대한한방소아과학회 2012 대한한방소아과학회지 Vol.26 No.1

Background Children's Eating Behaviour Questionnaire (CEBQ) is a parents-targeted questionnaire to measure eating behavior of children, developed in United Kingdom and verified validity and reliability in several countries. Validity of Korean version of CEBQ (K-CEBQ) was verified in 2009. Objectives The study was conducted to assess the appetite improvement after herbal treatment in children who have anorexia. Methods The parents of the 26 children(anorexia 11, non-anorexia 15; $79.54{\pm}38.17$ months) who visited one university hospital was surveyed using K-CEBQ from April 2010 to April 2011. It was re-surveyed at intervals of 3 months. Differences between the anorexia group and the non-anorexia group were analyzed by Mann-Whitney U test, and comparisons of pre-treatment and post-treatment in anorexia group and non-anorexia group were verified by Wilcoxon signed-rank test. Results Depends on the presence of anorexia in child, Slowness in eating/Satiety responsiveness (SE/SR), Enjoyment of food (EF), Emotional undereating (EUE) and total scores were significantly different ($p$<0.05). Also, there were significant difference in SE/SR and total scores before and after the herbal treatment in anorexia group (p<0.05), and all scores tended to increase a few. However there were no significant difference before and after the herbal treatment in non-anorexia group, and the scores except for Desire to drink (DD) and Emotional overeating (EOE) were decreased. Conclusions Herbal treatment in children who have anorexia has improved their appetite in terms of eating sensitivity.

氣體一液體 크로마토그래피에 의한 C_1-C_5 탄화수소류의 同時分析과 그 適用

李善行,李華心,徐幀起 경북대학교 과학교육연구소 1989 科學敎育硏究誌 Vol.13 No.-

The 18 components of C_1-C_5 hydrocarbons were well separated on a single, packed column operated around 40℃ within 20 min. The chromatographic column is 25% sebaconitrile/chromosorb P-AW(10m x 0.3㎝, 60-80 mesh). The optimum flow rate was determined by making a simple Van Deemter plot of the number of theoretical plates VS. Iinear gas velocity. The most efficient flow-rate of N_2 carrier gas was at 35㎖/min, and the mumber of theoretical plates was 5,000-10,000. The linearity of calibration curves were checked ranging ppm to % concentration of CH_4 and C_3 H_8. Peak area was used for quantitating the C_1 hydrocarbon through C_5 hydrocarbons, and relative standard deviations of 10 measures were less than 2.1%.

착색렌즈의 광투과율에 따른 양안시력 변화

이선행,조현국,문병연,김상엽,이명하,마기중 대한시과학회 2008 대한시과학회지 Vol.10 No.4

Purpose : To evaluate visual acuity(V A) according to Jight transmissi on of tinted Jenses. Methods : 37 college students in Daegu and Kyungbuk province(24 males, 13 females, a mean age of 22.8±2.0 yrs.) were seJected. AJJ of them had corrected visuaJ acuity of 0.8 or better, no anisometropia of 2.000 or more, no ocuJar and systemic diseases. Gray, brown, red, green, yellow, bJue, pink lenses are tinted in accordance with BS EN 1836(1997) so that Juminous transmittance of the lenses classified 80-90%(0 category), 60-80%(1-1 category), 43-60(1-2 category), 30- 43%(2-1 category), 18-30%(2-2 category). VA was measured with Han's visual acuity churt. Results : ln wearing tinted lens, the VA decreased. the photopic condition at distance, VA with all the tinted Jens decreased except 0 category Jenses of brown, yellow, blue tint and 1-2 category Jens of yellow tint. ln mesopic condition at distance, V A with all tinted Jenses decreased except 0 category Jens of gray tint. ln the photopic condition at near. V A with alJ tinted Jens decreased. In mesopic condition at near distance, VA with alJ tinted Jenses decreased except 0 category Jenses of green and pink tint. ln the photopic condition at distance. the measured corrected VA with all tinted Jenses excepts 2-2 category of gray tinted Jens was 0.8 or better. ln the mesopic condition at distance. the measured corrected VA with all tinted Jenses was Jess than 0.8. ln the photopic condition at near. the measured corrected VA with 2-2 category Jens of gray tint was 0.8 or better. ln the mesopic condition at near, 1-1 category Jens of bJue tint were measured corrected visual acuity Jess than 0.8. 1-2 category of alJ tinted lenses were measured con·ected visual acuity Jess than 0.8. Conclusions : VisuaJ acuity according to color and light transmittance of tinted lenses was different. When choosing tinted lenses, the decreased leveJ of visuaJ acuity needs to be considered.

Torque Wrench를 활용한 택코팅제의 전단부착강도 실험평가

이선행,이재준,박재영,양정훈 한국도로학회 2017 한국도로학회 학술대회 발표논문 초록집 Vol.2017 No.03

반하백출천마탕 가감방을 투여하여 비소세포성 폐암의 뇌전이에 의한 두통이 호전된 1례

이선행,이진수,정현식,최원철,김경석,Lee, Sun-Hang,Lee, Jin-Su,Jung, Hyun-Sik,Choi, Won-Cheol,Kim, Kyung-Suk 대한암한의학회 2009 大韓癌韓醫學會誌 Vol.14 No.1

Lung cancer is the most common primary tumor of brain metastasis. Metastasis to the brain is a frequent complication of non-small cell lung cancer (NSCLC) occuring in 12 ~ 18% of patient. The incidence of brain metastasis is rising because of longer survival of cancer patients as a result of the increase in early diagnosis of primary tumors and aggressive management, and improvements in imaging quality and accessibility such as widespread use of MRI. The most common symptoms are gradual onset of headache, focal weakness, and mental changes. Surgery, chemotherapy, radiotherapy and steroid therapy are treatment of NSCLC with brain metastasis. We report a patient with NSCLC metastasis to the brain. This patient underwent chemotherapy, radiotherapy and steroidtherapy. However, the patient requested oriental medical treatment for the patient's continuous headache and disease. We administered Banhabaekchulchoenma-tang gagambang with Allergen-removed Rhus Verniciflua Stokes(aRVS). The patient showed remarkable improvement in terms of frequency and severity of headache. Further study will be needed in order to determine the long-term effectiveness of oriental medical treatment on cancer patient with headache.

한국고대신목신앙에 대한 역철학적 고찰

이선행 한서대학교 동양고전연구소 2011 동방학 Vol.21 No.-

What we could consider as ancient Korean beliefs in sacred trees are found from Shindansoo(the sacred tree) of Dangun mythology, Moksooshin(the wooden statue of Lady Yuwha) at the Ritual of Dongmaeng of the ancient Korean kingdom of Goguryo and Sottae(the pole of prayer) of the belief in Sodo(the sacred district) of the ancient Korean kingdom Mahan, Soorim(the sacred forest) of the ancient Korean Kingdom Shilla. The common point among them is that the divine will of the Heaven is handed down to the human world through the sacred trees and they were the targets of prayers and rituals for righteous human political affairs. The divine will from the Heaven is represented as Hong-ick-in-gan(Benefit all mankind) and the righteous political affairs in the human world are realized as Jae-seh-yi-hwa(Rule the world and enlighten mankind) and Kwang-myoung-yi-seh(Rule the world with the light of truth). Xùn gua in the Book of Changes symbolizes a tree or wind. The trigrams including Xùn gua symbolizing trees mainly focus on identifying the way of Heaven or the way of God revealed by a saint with a Goonja(the wise man)'s morality. The trigrams including Xùn gua symbolizing wind clarify the principles for Goonja realizing the way of Heaven or the way of God and cultivating his virtue to rule over the world . The ancient Korean beliefs in sacred trees are also interpreted as what Xùn gua in the Book of Changes means. Hong-ick-in-gan(Benefit all mankind) can be represented as Fēng-léi-yì gua, the prayer of Ungnyo(the woman of Bear) under the Shindansoo can be explained as Fēng-shān-jiàn gua and Najeong(The Well of Shilla) where Hyukguseh was born can be interpreted as Shuǐ-fēng-jǐng gua. Furthermore, the process of realizing the way of Heaven or the way of God can be explained by Huǒ-fēng-dǐng gua, Fēng-de-guān gua and Fēng-shuǐ-huàn gua containing the principles of rites practiced in the rituals.The trigrams symbolizing to practice the way of Heaven or the way of God represent the Xùn quas meaning wind, in addition, the indigenous Korean thought represented by Pungryudo(The way of wind and flow) can be inferred through this. The Pungryudo is the principle of practicing the morality to recognize the way of Heaven and edify the world. 한국 고대 신목신앙으로 볼 수 있는 것들은 단군신화의 신단수와 고구려 동맹제의의 목수신 그리고 마한의 소도신앙의 솟대와 신라의 수림을 찾아 볼 수 있는데, 그 공통적인 요소는 하늘의 뜻이 이 신목을 통해 인간세상에 내려온다는 것과 인간의 바른 정사를 위해 기도와 제사를 하는 대상이었다는 점이다. 신목을 통해 내려오는 하늘의 뜻은 홍익인간으로 대표되고, 인간세상에 대한 바른 정사는 재세이화와 광명이세 등으로 드러난다. 『주역』에서는 손괘(巽卦)를 나무와 바람 등으로 상징하고 있는데, 『주역』의 나무로 상징된 손괘가 들어 있는 괘들은 성인이 밝힌 천도⋅신도를 군자의 도덕성으로 주체화하는 것을 주요 내용으로 하고 있으며, 바람으로 상징된 괘들은 천도⋅신도를 자각하고 진덕수업하는 군자가 천하(天下)를 다스리는 원리를 중심으로 밝히고 있다. 한국 고대 신목신앙의 내용도 또한 『주역』의 손괘가 의미하는 내용으로 해석할 수 있다. 홍익인간의 의미는 「풍뢰익괘」로 대표할 수 있고, 웅녀의 신단수아래에서의 기원은 「풍산점괘」의 원리로 설명되어질 수 있으며, 혁거세의 탄생지인 나정은 「수풍정괘」의 원리로 풀이할 수 있다. 더 나아가 천도⋅신도를 자각하는 과정은 제의에서 행해지는 제사원리로 상징되고 있는데, 제사원리를 담고 있는 「화풍정괘」⋅「풍지관괘」⋅「풍수환괘」 등을 통해 풀이할 수 있다. 천도⋅신도를 행하는 것을 표상하는 괘들이 바로 손괘를 바람으로 상징한 괘들이며, 나아가 풍류도로 표상되는 고유사상의 내용도 바람으로 상징된 손괘를 포함한 괘들을 통해 유추할 수 있다. 바로 풍류도는 천도를 자각하여 덕으로써 세상을 교화하는 것을 내용으로 하는 도덕성의 실천원리인 것이다.

자착식 실링 테이프를 활용한 시공 조인트 저감을 위한 기초연구

이선행,박재영,양정훈,이재준 한국도로학회 2017 한국도로학회 학술대회 발표논문 초록집 Vol.2017 No.10

국내 도로포장의 약 80%의 비중을 차지하는 아스팔트 포장은 신속한 교통개방 및 유지관리의 편의성 등의 장점이 있는 반면, 소성변형(permanent deformation rutting), 환경영향에 의한 균열(crack), 시공과정에서 발생되는 이음(joint)에 의한 이음부 균열(joint crack) 등의 단점도 많이 내재되어 있는 실정이다. 그동안 아스팔트 개질재 개발 및 골재 입도 개선 등을 통하여 소성변형 저감을 위한 연구는 지속적으로 이루어져 온 반면, 균열에 대한 연구는 상대적으로 미비한 것이 국내 실정이다. 최근 국내도로는 교통량의 증가와 주변 환경의 따라 도로의 포장공사가 증가하고 있는 추세이나, 아스팔트 포장의 확장공사, 절삭 덧씌우기 공법을 적용한 보수공법 시공시에는 굴착 복구 과정에서 기존 포장과 이어서 새롭게 포설 및 다짐한 포장사이에 시공조인트(cold joint)가 발생하게 된다. 이런 시공조인트는 이미 포장된 면과 새로 포장된 면과의 접착이 이루어지는 접합부로 단기간 내에 신구포장의 접착부실로 조기균열이 발생하여 강우시 균열부위에 빗물이 침투하게 되고, 차량의 하중에 의해 점진적으로 균열이 확대되어 라벨링, 박리 및 포트홀 발생으로 연결되게 되어 포장층의 내구성 및 수명 저하를 초래한다. 따라서 아스팔트 포장 시 발생되는 시공조인트의 완벽한 접착력 및 방수성과 차량의 하중 및 충격을 흡수하여 시공조인트 균열의 확대를 억제할 수 있는 예방적인 재료가 절실히 요구되고 있다. 예를 들어, 국내의 경우 아스팔트 포장의 종 방향의 시공 이음부 균열 문제를 근본적으로 해결하지 못하고 있는 실정이며, 아스콘 포장 후 1~2년 경과 후에 이음부에서 균열이 발생되며, 이러한 시공균열 발생저감을 위하여 국내 R사에서 새로 개발한 고무화 아스팔트계 자착식 시트를 사용하여 균열 저항성과, 저온 유연성에 대한 실험 및 평가를 하였다.