Synthesis of N-doped TiO₂ nanoparticles via sol-gel method

김문규,박성수,( Tran Xuan Tin ),최귀준,송시내,김희택 한국공업화학회 2018 한국공업화학회 연구논문 초록집 Vol.2018 No.0

TiO₂ is widely used as a ceramic material field which has been used in many research fields due to its low cost, high photocatalytic activity, effective charge separation and high oxidation-reduction performance. In this study, we synthesized of TiO₂ nanoparticles by Nitrogen doped to decrease of band-gap energy which improve the photocatalytic activity on the visible light region. Titanium tetraisopropoxide, isopropyl alcohol, acetyl acetone, and acetic acid were prepared to TiO₂ precursor solution. TiO₂ nanoparticle was titration of pH by ethylene diamine in nitrogen gas condition. To explore the visible light photocatalytic activity of the nitrogen doped TiO₂ photocatalyst in variety conditions of aging time, heat temperature and the removal of methylene blue dye was investigated. The synthesized TiO₂ nanoparticles crystalline structure and morphology were characterized by XRD, SEM and TEM.

부르주아 결혼과 말괄량이 길들이기: The Taming of the Shrew

김문규 덕성여자대학교 인문과학연구소 1996 인문과학연구 Vol.3 No.-

The Taming of the Shrew, examines the social formations of newly emerging bourgeoesie marriage particularly in the Kate and Petruchio scenes, which offers the fullest representation in the play of gender relations and marrige roles that circulated throughout the age. The economic reality of marital arrangements is voiced by both Baptista and Petruchio early on in the play. They both describe marriage as a business arrangement among men and view Kate as a product to be bargained for. Kate is forced by such circumstances to the self-defensive stand of shrewishness to discourage such bourgeosie suitors. But Kate, the insubordinate woman, is wooed mainly after her marriage by Petruchio, who, with his political and economic power, is able to overmaster her. Petruchio also reacts against the abuses of the class to which Baptista and Kate belong in the particular instance of the church wedding, but he remains essentially a man of his class. After forceful marriage Kate comes to remaine that to survive she must redirect and dispell this male's absurd aggression and she does so in behavior that he understands. She subverts her husband's power without attempting to challenge it, and she does so in a gamesome spirit. Finally the dominance/submission relationship of husband and wife seems to change into the mutuality of the husband and wife, but this mutuality is based on affections and respect and not power, which only the husband enjoyed. By having the other new wives refuses their husbands in the wager, Shakespeare not only returns to the opening tensions of the play, creating a new shrews, but conveys the point that Kate's dilemma was not an anomaly. This open endedness suggests that the illusion of dominance and independence is interwoven with the necessity of mutual understanding and the limitation of it.

냉동.해빙한 생쥐배아의 발생에 미치는 해빙속도와 퇴화할구의 영향

김문규,이호준,이승재,전종영,Kim, Moon-Kyoo,Lee, Ho-Joon,Lee, Seung-Jae,Jun, Jong-Young 대한생식의학회 1987 Clinical and Experimental Reproductive Medicine Vol.14 No.1

The present experiments have been bone to verify the effects of the warming rate and the degenerated blastomere(s) on further development of the frozen and thawed 4- and 8-cell mouse embryos. The embryos obtained from the mouse superovulated and mated were frozen in the solution of 15M DMSO in PBS containing 10% FCS at a slowly cooling rate($0.3^{\circ}C/min$). Two methods of warming slowly($8^{\circ}C/min$) and quickly ($450^{\circ}C/min$) were applied for thawing embryos. The thawed embryos were grouped according to the number of healthy blastomere(s) in the embryos. Some of the embryos were eliminated their degenerated blastomere(s) by means of a micromanipulation technique. The embryos were examined their developmental phases after 48 or 72 hrs incubation. The rates of blastocyst development from the frozen and thawed 4- and 8-cell embryos were 72.7% and 73.5%, respectively in case of thawing slowly, and were 78.9% and 80.0%, respectively in case of thawing quickly. The rate in case of thawing quickly was significantly higher than that in case of thawing slowly. The rates of blastocyst development from the frozen and thawed 4- and 8-cell embryos eliminated their degenerated blastomere(s) increased 5.9% and 24.4%, respectively compared with those of control groups not eliminated. The more number of degenerated blastomere(s) were eliminated from the embryos, the higher rate of blastocyst development was shown. It may be concluded from the results that the quickly thawing method is better for increasing survival rate than the slowly thawing one, and that the degenerated blastomere(s) in the frozen and thawed embryos affects as an interfering factor for further development of the embryos.

眈羅 民謠 小考

金文奎 圓光大學校 1956 論文集 Vol.1 No.-

민요란 그 민족의 정서가 장구한 세월간에 표현된 원시적인 한 운율문학일 것이다. 그러므로 애초에는 어느 개인의 창작일지 모르나 구구전승하는 사이에 원작자의 개성보다는 구전하는 사람들의 창의 또는 와전이 부가되어 오랜 시일이 지나고 보면 누구의 작품인지 알 수 없는 한낱 그 민족의 공동작이 되고 마는 것이다. 그러므로 그 민족의 감정이 속속들이 담기어 있고 그네들의 호흡에 가장 알맞은 율격으로 표현되었다고 봄이 타당할 것이다. 그래서 우리는 그 민요를 통하여 그 속에 숨어있는 민족성을 찾아낼 수가 있고 또 반면에 그 민요를 이해하려면 우선 그 민요가 발생된 자연적, 인문적인 배경을 상찰하여야 될 것이다. 여기 탐라(제주)민요를 말하기 전에 그 자연적, 문화적 배경을 약술하겠다.

MOVEMENT EDUCATION의 授業模型 考察

김문규 師範大學 體育硏究所 1990 서울大學校 體育硏究所論集 Vol.11 No.1

The purpose of this study was to examine the instructional model for movement education. The procedures were used to analyze the related literature and data available. The following specific areas are described below: .The concept of movement education .The teaching methodology of movement education .The instructional models The findings of this study were as belows: 1. Experimental model, Thinking model & Inquiry are available for movement education Because the learning conditions of the models are just fit to those of movement education 2. Experimental model is available for about 4∼8 years old, Thinking model the inquiry model are for about 8∼14 years old. 3. The teaching process of the models should be controlled by teacher, if any needs.

化學分析을 通한 水稻의 加里適量 推定에 관한 硏究

金文圭 충남대학교 농업과학연구소 1975 農業技術硏究報告 Vol.2 No.1

This study has been made to find out the possiblity of successfully using the following K_2O recommended equation K_2O kg/10a=(Ko/√Ca+Mg-Ks/√Ca+Mg)√Cg+Mg. 47. B D. where Ko√Ca+Mg=0.03158+0.0007658 SiO_2/O.M. Ks/√Ca+Mg=Exchangeable K me/100g/√Total soluble (Ca+Mg) me/100g in Soil B.D.= Bulk density of top soil, when the dose of Nitrogen for rice is estimated from the following equation: N kg/10a=(4.2+0.096 SiO_2/O.M).F where F=0.907+0.263x-0.013x^2 SiO_2/O.M=(available SiO_2=ppm)/(organic matter %) in soil For this, two field experiments, one in sandy and the other in clay paddy soil, have been conducted using 3 levels of wollastonite (0, 500, 1000kg/10a) as main treatments; 3 levels of K_2O application were used as sub-plots. These were as follows: (1) 8kg of K_2O/10a regardless of the K activity-K√Ca+Mg; (2) kg of K_2O/10a estimated from the above equation, and (3) same as (2) above plus additional 30% of K_2O. The dose of N kg/10a was determined from the above equation based on the value of SiO_2/O.M. ratio in each treatment. There were three replications. The leading variety of rice in Chung Chong Nam Do area, Akibare (introduced from Japan) was used. The data obtained, through soil and plant analysis and growth and yield observations, have been throughly examined to attain the following summarized conclusions. 1. The nitrogen dose, estimated from the above equation, was in excess for optimum growth of the rice variety Akibare; indicating the necessity of modification onthe value of "F" or the constants in the equation. The concept of using SiO_2/O.M. in the equation was shown to be applicable. 2. The dose of potash, estimated from the respective equation given above, also was in excess of the rice requirements indicating the necessity of minor change in the estimation of Ko/√Ca+Mg value and some great modification in the calculation of Ks/√Ca+Mg value for the equation; however the concept of using K/√Ca+Mg as a basis of K_2O recommendation was shown to be quite reasonable. 3. It was found, from the correlation study using the data of paddy yield and amount of K_2O absorbed by rice plants that the substitution of the value of Ks/√Ca+Mg in the equation for the value Ks/√Ca+Mg=0.037+0.78K me/100g soil was much more applicable than using the value calculated form the data of soil and wollastonite analysis.

노인소득보장에 관한 연구

김문규 경기대학교연구교류처 2000 大學院 論文集 Vol.24 No.-

벽체에 작용하는 토압에 관한 모형실험

김문규,김대현 동의공업대학 2000 論文集 Vol.26 No.1

The model experiments were carried out to observe the variation of lateral earth pressure acting on the wall as vary the constraint of retaining wall, geometry of wall, and backfill width. For the experiments, a soil-box, model wall, and a rainer were designed and manufactured. The experiments were carried out with two different types of constraint on wall movement: i.e. first with completely fixed wall and second with movable wall depending on soil pressure. The measured lateral earth pressure was compared with that by an extended silo and wedge theories. The test results are summarized as follows: The measured lateral earth pressure approached to that from the extended silo theory as a narrower backfill width was used. Both experimental and theoretical results showed a good coincidence when the backfill width is Bc tan(45 -?? DS/2)H. But much deviated from that by an extended wedge theory. (원문을 참조하세요)

國民學校 體育授業用 設備 및 敎具의 基礎量 推定에 關한 硏究

金文圭 釜山敎育大學 1986 부산교육대학 논문집 Vol.22 No.1

This study is aimed to offer an information to the officer of the Ministery of Education, schoolmaster and teacher about the basic volume of educational equipments and tools for physical education in primary school. The deduction of Basic volume for educational equipments and tools on physical education in primary school was conducted by analysing the textbooks and teacher's guide books. Textbooks and teacher's guides were analysed in learning task, grouping and demanded equipments and tools. The criteria for deducted basic volume are as follow: 1. Only one class per grade (totally six classrooms) 2. 45 children per class (class size) 3. grouping by learning task, traits and treatment interaction. And the resualts of study were follow (see <table-11>)

안전인증ㆍ자율안전확인신고ㆍ안전검사 제도

김문규 대한안전경영과학회 2016 대한안전경영과학회 학술대회논문집 Vol.2016 No.11