PET 共重合體의 結晶化

曺在興,陸燦男 조선대학교 기초과학연구소 1987 自然科學硏究 Vol.10 No.1

Crystallization of PET copolymers with some comonomers were studied by differential scanning calorimetry and densitometry. The results as follows; (1) Crystallinities of PET were increased with increasing the densities of the PET copolymers. (2) Crystallization was delayed with increasing the viscosities of PET copolymers. (3) Crystallization temperature were decreased with increasing the mole percent of copolymers used.

부모의 직업과 자녀의 희망 진로 분석

조찬성 韓國實科敎育硏究學會 2000 實科敎育硏究 Vol.6 No.1

The purpose of this study is to examine children's hoping career based on survey and analysis through inquiries for the children in the 5th grade and 6th grade of the elementary schools in Anyang city. The obtained are as follows. (1) Many examined children prefer professionals as their desired career, especially for the children whose parents' occupation were the occupational group of professionals, Next, this study showed that the occupational group of associate professionals followed and the rest favorite occupational groups appeared to be less than 1%. (2) occupation which many parents' prefer and many children also prefer is the group of professionals. Especially, parents who were in the occupational group of managers and professionals preferred the groups of experts. (3) Far the current occupations of parents and children's hoping career, only children whose parents were employed in the occupational group of professionals preferred their parents' current occupations. Meanwhile, children whose parents employed in the occupational group of non-professionals showed that their desirable career were different from etheir parents' current occupations. Also, the matching degree beteen the occupations which parents recommended and children's hoping career appeared to be very high.

韓國 酒類에 關한 硏究 (第3報) : 濁酒 釀造中 Fusel油의 消長에 對하여 On the quantitative Changes of Fusel Oil during the Fermentation of Takju

金燦祚 忠南大學校 1967 論文集 Vol.6 No.-

1. Takju (korean native sake) was mashed with polished rice (A), brown rice (B), corn powder (C), and flour (D). After that the quantitative changes of the alcohol and fusel oil in these mashes was checked on every appointed time. The results was summarized below; (a) : The rate of alcohol product on the seventh day showed 14.9% in the Amash, 12.7% in the B mash, 9.8% in theA C mesh and 9.2% in the D mesh. Therefore, the amount of alcohol product in the flour mash was the smallest as that in the other sample mash with the customary mashing method. (b) : Although the product of fusel oil in these fermenting mash was finely coincident to the phase of yeast propagation but the product was no in proportion to alcohol yield. With that the fusel oil product on the seventh day showed 0.049% in the A mesh, 0.051% in the D mesh, 0.062% in the B mesh and 0.07% in the C mesh. Consequently, it showed that there was about 0.05 to 0.07% of fusel oil in the original Takju mash and about 0.02 to 0.04% in the completed Takju. (c) ; Fusel oil was more contented in the Takju which was mashed with corn or flour than polished rice.

국제스포츠 정보 시스템의 현황 분석

육조영,윤찬호,김범수,노덕선,이무연,배진희,이승훈 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

Information has become a strategic tool with progress of sports science and sports technology. Demand on sports information is spreading to leisure, recreation, sociology, science of nutrition, psychology, sports medicine, sports therapy, prophylactic medicine, alternative medicine, sports industry and sports nature etc. if on line data base can be manipulated freely then acceleration and quality improvement of the study in this field can be effected and it is possible to gain new insight for receiving latest information But next problem is cost for use. For this reason this author summarized quick and effective on lline search points as follows: 1. Data base should be chosen with clear purpose for its use. Conduct prior investigation on contents and fee system of data base. With the same data base fee system may be differed depending on distributor therefore it is necessary to try different distributors at first as much as possible. 2. Prior to starting on line search prepare search method. If on line is started and then search method is checked than quickly telephone charge will go up. Search method should be prepared in advance by thinking sufficiently of what theme is to be searched. 3. Look for good advisor: lf there is no advisor nearby then the best thing is counselling with the person in charge for the distributor. If the result of search is stored at floppy disk by "downloading" then even after communication line is cut off it will be possible to print out anytime. 4. In this study the author explained about on-line search of lterature data line but recently it is possible to search overseas sports news or information on rate of victory or defeat of prfessional footbali etc. in real time. In Japan it is possible to search feature articles of Nihon Kesai or Asahi (except culture and sports column) by on-line. However in our country there are not many data bases in the field of sports and physical education which can be on-line searched. Our country belongs to up per level in the world in terms of study of sports science and technology and we are attracting attention from countries in Asia and from different parts of the world and the task facing us now is developing independent and unique data base for our country.

정부기관의 이미지 측정 개념과 절차에 대한 탐색적 연구 : 교육인적자원부를 대상으로

김찬아,조삼섭,신호창 한국방송광고공사 2006 광고연구 Vol.0 No.73

이 연구는 정부기관의 이미지를 평가할 수 있는 개념과 절차를 제시하고자 했다. 정부기관 중 교육인적자원부를 선정했고, 교사와 학부모, 학생 총 396명을 대상으로 설문조사를 실시했다. 20개 항목으로 이미지를 측정하였으며, 탐색적 요인분석을 통해 12개 항목이 4개 요인 - 헌신, 공정ㆍ합리, 업무추진, 리더십 - 을 추출했다. 확인적 요인분석을 통해 ‘4요인 12항목 모델’은 Q값이 2.09로 기준치 2를 넘었고, GFI는 .959, AGFI는 .993, 기준치 .9를 넘었고, RMR의 값은 .035로 .05 미만으로 적합성이 증명되었다. 4개의 이미지 차원은 각 하부에 3개 항목으로 구성된다.‘ 헌신’은“국민을 배려한다”,“ 친절하다”, “투명하다”로 측정되며, ‘공정ㆍ합리’는“공정하다”, “판단력이 있다”, “합리적이다”로 구성된다. 그리고‘업무추진’은“추진력이 있다”,“ 실행능력이 있다”,“ 자신감이 있다”라는 항목들이며,‘ 리더십’은“장관은 훌륭하다”,“ 믿을 만하다”,“ 분명한 원칙이 있다”의 항목들이 포함되었다. 이로써 정부기관의 이미지를 측정할 수 있는 타당성있고 신뢰성있는 개념과 절차를 제시했다. The purpose of this study is to devise a valid and reliable instrument to measure the image of a government agency, the ministry of education and human resources development. Among its public, teachers(99), parents(151) and students(146), totally 396 have been surveyed. Among items selected from the initial survey of publics and literature reviews, we finalized 20 items as image construct. Using several exploratory factor analyses, 4 dimensions are finally extracted: commitment, integrity, competence and leadership. This model is retested with confirmatory factor analysis. Model fit indexes yield satisfactory results(Q=2.09, GFI=.959, AGFI = .993, RMR = .035). Each dimension is consisted of 3 items: Commitment(consideration, kindness, transparency), Integrity(fairness, judgment, reasonableness), Competence(drive, execution, confidence) and Leadership (CEO leadership, trust, distinct principle). As a exploratory study, the measurement index can provide a valid for other government agencies and their publics.

쓰레기매립장에서의 황화수소 배출특성

전의찬,김조천,사재환 동신대학교 환경연구소 1999 환경연구 Vol.4 No.1

본 연구는 쓰레기 매립장에서 발생되는 악취물질인 황화수소를 대상으로 하였다. 매립장에서 발생되는 악취는 심각한 사회문제가 되고 있으며, 우리나라의 경우 발생되는 쓰레기의 대부분을 매립에 의존하고 있으므로, 악취물질 배출량에 대한 정확한 측정이 필요하다. 쓰레기매립장에서 발생되는 악취유발물질은 넓은 공간에서 다양한 종류로 발생되며, 매립경과시간에 따라 그 발생량과 종류가 달라지기 때문에 정확한 발생량을 산정하기가 어려울 뿐만 아니라 악취유발물질 종류를 파악하기가 어렵다. 따라서 본 연구에서는 flux chamber, floating chamber를 이용하여, 쓰레기 매립장에서 발생되는 악취물질을 채취하였으며, 악취유발물질중 가장 대표적인 물질인 황화수소를 대상으로 발생량을 산정하였다. Flux chamber를 이용하여 산정한 발생량은 매립장 표면, 침출수처리장, 가스배제공에서 황화수소는 각각 9.6ton/yr, 0.01ton/yr, 2.gton/yr로 산정 되었다. 쓰레기매립장에서 발산되는 황화수소의 배출량을 보다 더 정확히 산정하기 위해 매립 완료 경과 시간, 매립 공법, 다짐 정도, 온도, 토양의 습도 등과 배출량특성을 파악하고, 상관관계를 찾는 연구의 진행이 필요하리라 판단된다. Odorous gases emitted from landfill sites create serious social problems. In Korea, most wastes have been dumped in landfill sites. It is challenging to correctly identify and measure the amount of all odorous gases from landfill sites, not only because many different kinds of gases emit from typically vast area but also because chemical composition varies with the age of any landfill site. In this study, I focused on typically problematic hydrogen sulfide, gas samples were captured at Unjung-dong landfill site in Metropolitan Kwangju with flux chamber and floating chamber, and analyzed for the amount of hydrogen sulfide(H₂S). From the gas emission pipe, landfill site surface and waste leachate treatment plant, estimated total amount of H2S emission are 2.9ton/yr, 9.6ton/yr and 0.01ton/yr respectively. Further in-depth study on co-relation between age, packing characteristics, temperature and humidity of a landfill site and gas emission characteristics is needed.

동진강 유역 비점오염원 정밀조사

원찬희,정팔진,김민정,조선영,김세훈,김종천 전북대학교 공학연구원 ( 구 전북대학교 공업기술연구소 ) 2002 工學硏究 Vol.33 No.-

Nonpoint source pollution(NSP) arises due to agriculture activity and it is quite an extensive and complicated problem in order to control and has received a great deal of concern during the recent years, whereas point source are known to originate from an estimated volume of contaminant discharged from a distinguishable source. Extensive research work have been conducted and presented in the past with regard to the various characteristics of watershed on Dong Jin River(DJR), however there are certain drawbacks of existing survey for determining important polluting sources, distribution features of pollutants and estimated load of the organic and nutrients from the creeks. Unfortunately, investigation for loadings originating due to agricultural drainage was not satisfactory, although the regional consideration for DJR across Kim Je Field(KJF) as an agricultural area receives a reasonable source point in the agri-pollution management. Therefore it was necessary to carry out a thorough investigation into the diffuse sources resulting, to form the pollution-developing estimation and to evaluate the output roperties and determining various factors in the generation of non-point pollution. Eventually, this research work would serve as an useful tool for the development of predictive pollution management for DJR. Non-point sources in the present work were classified as municipal non-treated sewage water discharged into the river, loadings through agricultural drainages in the dry/wet field and inadequate treatment of wastewater generated from livestocks. The entire duration of the research work was from December-2001 to July-2002. Site measurement were conducted during various season, in a dry season(December), in rainfall, in seed-sowing time and also collecting data from the rural public organizations related to water management was done and examined and examined during the mid of research work. Similarly, domestic wastewater loadings due to population was based on area unit, as City, Country, Up, Myon, Dong, Ri. The Dong Jin River watershed contains small three Creeks, KoBu(KB), DongJin(DJ, including JeongEup(JE) and ChilBo(CB), WonPyong(WP). It was further divided into 32 sub-watersheds which comprises of further 5,18,9 watersheds in the creeks respectively. The results obtained from research work are presented as follows. Animal productions have marked differences in the rate of pollutant loadings reported in the following sequence: DJ(only CE)>WP>CB>KB, in a case of Korean cow and milk cow. However, it was revealed that WP creek became significantly higher than any other livestocks. According to statistical data for land use, rice field(369.0㎢) and forest(378㎢) have much occupation prior to dry paddies(125.0㎢), residential land(32.0㎢) and others(5.0㎢). Especially, rice fields receives 2.5∼3 times than dry paddies in size.

Tennessee Williams 후기극 속의 구원의 여성상

박찬조 한국영어어문교육학회 1997 영어어문교육 Vol.3 No.-

In the case of Tennessee williams, almost all of his works are shaped by reflections on his life and experience. Accordingly, the characters that appear in his works can be said to be shaped by his own character or other characters around him in real life. Especially, and analysis of his feminine characters provides a very suitable access to a study of Williams' works. This study lays aims to suggest the Feminine Type as the self-sacrificer through the characterization of feminine characters, using Lajors Egri's method. The type of character is presented in Williams' later plays. She appears in women like Hannah in the Night of the Iguana and Leona of Small Craft Warnings. In Hannah and Leona, this type puts on the face of a woman who, psychologically, has a transcendental, yet practical will. She maintains a sound physical condition, and in the degree of bestowing her favor upon other characters in her situation, shows a surplus in giving. In contrast to Williams' earlier characters, her relationship of bestowing favor on other characters forms the basis for giving the impression of living a comparatively balanced life economically, physically and psychologically. This analysis of this feminine type that Tennessee Williams created reveals a notable change in the world view that is presented through his early and middle plays. Close analysis of Williams' feminine characters shows clearly a chronological progression from negation to affirmation of life in his works. There is a clear development from the negative femine characters in his early plays to the later life-affirming women who people the stage of his later plays. Study of this progressive change in the world view presented in Williams plays can be most clearly documented through the change in the feminine types presented in his plays.

Microseal 열연화 근관충전법의 치근단 밀폐효과에 관한 연구

홍찬의,최중조 大韓齒科保存學會 1999 Restorative Dentistry & Endodontics Vol.24 No.2

Propylene Glycol Alginate 제조에 관한 연구

오찬열,김영조,강동섭,강영주,이장순 제주대학교 해양연구소 1988 해양자원연구소연구보고 Vol.12 No.-