교잡종 찰옥수수에 대한 연구 III : Ⅲ. 국내 옥수수 유전자원 수집종에 대한 주요 특성 분포

서정은,주현민,최윤표,홍범용,조양희,주정일,지희정,이희봉 충남대학교 농업과학연구소 2007 농업과학연구 Vol.34 No.2

2006년 국내 각 지역으로부터 수집된 재래종옥수수 유전자원을 관행방법에 의해 파종하고 주요특성별로 분포도를 살펴본 결과는 다음과 같다. 1. 수집된 유전자원에 대한 발아율은 대부분 80∼100%이상의 분포를 보였으나, 일부 수집계통에는 30% 미만의 극히 저조한 발아율을 보였다. 2. 수집자원에 대한 초기생육을 살펴보면 극히 생육이 저조한 것이 40% 정도를 보였고, 극히 우수한 자원은 3%미만으로 나타났다. 3. 간장은 대부분이 150∼199cm범위에 55%가 분포하고 있었으나, l00cm이하가 5%, 250cm이상이 8%로 나타나 수집종간에 큰 차이를 보였다. 4. 주당 분얼수는 1개 미만이 40%의 분포를 보였으나, 일부 수집종에서 2 내지 3개의 분얼수를 보이는 계통이 확인되었다. 5. 개화소요일수는 61∼64일의 범위에서 40%, 57∼60일의 범위에서 30%의 분포를 보였으며, 특히 일부 수집종의 경우 55일 이하의 극조생종도 10% 정도의 분포를 보였다. 6. 이삭길이는 대부분 11∼15cm범위에 60%가 포함되어 있으나, 일부계통에서 5cm미만이 2%, 16∼20cm의 이삭길이도 10%가 분포하였다. Germination ratio on the 300 collected genetic resources showed 80 to 100 percentage, but those of some accessions were very low as below 30 percentage. Early growth phase of most of these lines were very poor while some collected lines were very vigor. Range of stem height showed from 150 to 199cm, but that of some accessions showed below 100cm as five percentage and some of them was over 250cm as eight percentage. Number of tillers per plant appeared less one but some collected lines have two to three tillers per plant. In days to tasseling, some accessions showed more four per plant. Ear length of these accession showed above 60 percentage as 11 to 15cm, while that of some collected lines showed over 10 percentage as 16 to 20cm.

회전식 nickel-titanium file을 이용한 유치의 근관치료

서주희,이광희,김대업,양계식 大韓小兒齒科學會 2001 大韓小兒齒科學會誌 Vol.28 No.4

유치의 근관치료에서 치수절제술은 실활된 유치를 치열궁내에 유지하기 위해 치관과 근관부분의 괴사된 치수조직을 완전하게 제가하는 것을 말한다. 이 술식은 감염된 치수의 세균을 감소시키는 것을 목적으로 하며, 다양하고 불규칙한 유치 근관의 형태가 주된 장애 요소로 작용한다. 더욱이 비협조적인 어린이의 경우에는 오랜 시간동안 정교한 시술을 하기가 곤란하다. 최근 들어 근관치료시에 회전식 기구를 이용하여 근관형성을 하는 장비들이 많이 개발되었으며 저속전기 모터에 회전식 NiTi file을 이용한 술식이 많이 사용되고 있다. 본 증례에서는 회전식 NiTi file과 전기모터를 이용하여 유구치의 근관치료를 시도하였다. 치수강을 개방하고 치관부 치수를 제거한 후 잠정적 작업장을 측정하였으며 적절한 NiTi file을 선택하여 잠정적 작업장까지 crown-down 방법으로 점차적으로 형성하였다. 수용 file로 근단부 도달 및 성형을 하고 전체적인 마무리를 하여 Vitapex로 충전하여 양호한 결과를 얻었기에 보고하는 바이다. The pulpectomy or root canal treatment on primary teeth is to be done when there is evidence of chronic in flammation or necrosis in the radicular pulp. Due to the tortuous and ribbon-shaped anatomy of the primary teeth, the instrumentation of endodontic hand files and barbed broaches is not an easy procedure. Recently, many automatic Ni-Ti rotary instruments have been developed and has made endodontic treatment easier and faster. This report describes two cases of root canal treatment on primary molars using Ni-Ti rotary files. The cervical constricture was eliminated by the crown-down method, as smaller file proceeded unhindered into the apical third of the canal. In addition, the crown-down technique enhanced the efficacy of the endodontic irrigant. The use of rotary instrumentation for primary teeth seemed to be a more effective way to debride the uneven walls of primary teeth.

세그멘트기법을 이용한 프랙탈 영상 부호화에 대한 연구

서주하,최황규,조철희 江原大學校 産業技術硏究所 1995 産業技術硏究 Vol.15 No.-

Fractal coding is a promising method for image compression, but it has not lived up to its promise as low bit-rate image compression scheme. The existing algorithms for finding self-mapping contractive transforms are computationally expensive and offer a poor rate-quality tradeoff. In this paper, we propose a segment based fractal coding. We classify the range blocks into shade, midrange or edge blocks, and segment edge block along the edge. And we apply midrange coding scheme for each segment. Our experiments show that our method gives better rate-qualty trade of than current fractal block coding methods.

보건소 건강증진사업 수행과정의 질 평가

서영준,정애숙,박태선,김주경,박남수,이희원 韓國保健敎育.健康增進學會 2003 보건교육건강증진학회지 Vol.20 No.1

This study purports to assess the process quality of health promotion programs at public health centers. The sample used in this study consisted of 242 public health centers in South Korea. Data was collected with self-administered questionnaires between September. 3rd to September. 23rd in 2002. The 95 returned questionnaires were analyzed by SPSS 11.0 version. The major findings are as follows; There is a need to improve (1) a procedure for reviewing and analyzing strategic planning, (2) the quality of the staff in charge of program management, (3) the function of planning and training for monitoring and evaluation, (4) the ability of program managers in advising and consulting with clients, and (5) a procedure for organizing resources and information. In conclusion, in order to improve the process quality of health promotion programs at public health centers, integrated support from various institutions such as public health centers, community, regional and national health authorities and administrative departments is required.

간접부착술식시 치면과 레진 베이스의 간격 및 접착제에 따른 결합강도

서미영,박병주,경희문,황현식 전남대학교 치의학연구소 2001 구강과학 Vol.13 No.3

The purpose of this study was to evaluate the feasibility of the combined use of paste resin with sealant as an adhesive of the indirect bonding. The resin bases made of lighcured resin were bonded to the bovine incisors at a distance of 0.0, 0.2 or 0.4mm using the sealant only or the mixture of sealant and paste resin. Bond strength of each group was measured using universal testing machine. The results were as follows: 1. The bond strength was reduced in both groups as the distance between enamel surface and resin base increased. 2. The bond strength showed no statistical difference between two groups in case the distance between enamel surface and resin base was 0.0mm. 3. In case the distance between enamel surface and resin base was 0.2 or 0.4mm, the sealant with paste resin group showed significantly higher bond strength than the sealant only group. The results of the present study indicate that the use of paste resin with sealant may be desirable as an adhesive in indirect bonding, particularly in case a gap is suspected between enamel surface and resin base.

프로토콜 분석을 통한 창의적 디자인 전략으로서의 은유와 유추

최한희(Choi, Han_Hee),주서령(Ju, Seo Ryeung),김미정(Kim, Mi Jeong) 한국실내디자인학회 2013 한국실내디자인학회논문집 Vol.22 No.1

The aim of this research is to explore the potential of analogy and metaphor as design strategies for supporting the creative design thinking. For the empirical research on analogical and metaphoric process in designing, we conducted design experiments that consist of three different conditions of given items as stimulation for design inspiration: baseline, surrealist paintings, and housing design collections. The results were analyzed using a protocol analysis in order to obtain more systmatic interpretation of the design processes and strategies. As a result, it was noted that students are more apt to read visual information rather than semantic information in the given items. Instead of the representation of their senses or feelings from the paintings, they visualized the analogical images of the paintings for the design representation. However, analogical and metaphoric thinking derived from the given items seem change a designer’s perspective, thus bring a novel interpretation on design problems, and eventually more creative and meaningful design ideas. An extended research using one-semester training and observation of the design studio process is introduced as a follow-up study for this paper. This research will investigate the long-term effect of the analogy and metaphor on the design thinking.

Maillard 反應에 關한 硏究 : Ⅴ. 反應溫度 및 時間이 skim milk의 Maillard reaction에 미치는 영향 Ⅴ. Effects of reaction temperature and time on the Maillard reaction by heating skim milk

李乙熙,朴玉潤,徐珠銖,高鏡畢 진주산업대학교 농업기술연구소 1993 農業技術硏究所報 Vol.6 No.-

The color intersities of melanoidins and the contents of HMF in skim milk by heat treatment. The contents of HMF in skim milk were detected in all heat-treated skim milk by colormetrical method and HPLC method. The color intensities of melanoidins showed significant dependence on reaction temperature and time. The contents of HMF in skim milk were detected in all heat treated skim milk by colormetrical method. While they were not detected by HPLC method when skim milk was heated at the temperature 70℃ for 30, 50 and 70 minutes. It showed significant dependence of reaction temperature and time.

학교구강보건실 운영 평가에 관한 연구

민희홍,신승철,서현석,김은주,김호선 대한구강보건학회 2003 大韓口腔保健學會誌 Vol.27 No.2

School dental clinic programs is the most active and effective programs to prevent the oral disease for school-children and it is one of the recommended programs by the advanced and welfare countries. In Korea, 15 primary schools have been established the school dental clinics in 1999 as one of the public oral health programs supported by the Ministry of Health and Welfares, and expanded more every year. 11 school dental clinics among 15 were participated for 2-years evaluation project. Such items as the structure, the process, the supply of dental services, the promotion of the health level and the community supports were evaluated through the standardization by governmental suggestions. Average score for 2-years evaluation was estimated as 81.35% as considerably good remark. In detail, score 4.74 for the structure, 22.10 for the process, 19.77 for supply of dental services, 26.22 for promotion of the oral health level and 8.53 for the community supports were calculated. In conclusion, school dental clinic programs in Korea were evaluated considerably good and they should be extended to all primary schools as possible.

2-Halobenzyl Phenyl Ether의 광반응성과 광반응 메커니즘

박용태,서주수,김영희 진주산업대학교 1997 論文集 Vol.36 No.-

The photochemical reaction behavior of 2-halobenzyl phenyl ethers were studied, in order to investigate photoreactivity and photoreaction mechanism of those compounds. The photochemical reactions of 2-halobenzyl phenyl ethers were studied in several conditions. Photo-Fries type products and phenol were obtained as main products, and small amounts of photocyclized and photoreduced products were obtained. In the presence of oxygen, the formation of phenol was not affected much, the formation of photo-Fries type products was changed a little, but the formations of photocyclized and photoreduced products were affected effectively. Photocylization and photoreduction were inhibited by piperylene. Therefore singlet state is involved in the formation of phenol, and triplet state may be involved in photocyclization and photoreduction. All products were affected by nitrous oxide except phenol, this result implies that radical or radical-anion is involved in those photoreaction.

2-Halobenzyl Phenyl Ether의 제조와 그 광화학

박용태,서주수,김영희,신현일 진주산업대학교 1996 論文集 Vol.35 No.-

The photochemical reaction of 2-halobenzyl phenyl ethers was studied. In order to study the photoreactivity of haloarene tethered to arene with alkyl ether group, two 2-halobenzyl phenyl ethers were prepared. when the acetonitrile solution of 2-halobenzyl ethers in pyrex immersion vessel was irrdiated by 100W medium pressure Hg-lamp, the Photo-Fires type products, o(2-halo)benzyl phenol and p-(2-halo)benzyl phenol were obtained. Photo-Fires type reaction of 2-halobenzyl phenyl ether ws supposedly due to rearrangement of 2-halobenzyl radical and phenol radical produced by C_sp3-O bond cleavage. However when the reaction was carried out in benzene/aqueous alkalic solution with vycor immersion vessel, photocyclized product along the Photo-Fries type reaction products and photoreduced product was observed.