구순구개열 환아에서의 치조골이식

조해성,박재홍,김광철,최성철,이긍호,최영철 대한소아치과학회 2007 大韓小兒齒科學會誌 Vol.34 No.1

치조파열 및 구개열과 같은 선천성 기형은 이환된 환자에게 기능적, 심미적으로 많은 문제점을 야기하므로 정상으로 회복시켜 주는 것은 중요한 문제이다. 장기간 방치될 경우 영양장애, 구강위생 불량, 호흡기 간염, 언어 장애, 악안면 변형, 그리고 정신적인 문제 등이 복합적으로 발생할 수 있다. 따라서 구순구개열 환자의 치료는 여러 전문 치료 분야의 복합적인 접근이 필요하다. 골이식은 구순구개열 환자에 있어 중요한 치과치료 단계이다. 치아의 맹출과 치열의 안정화를 위해 치열궁은 골격손이 없이 완전해져야 한다. 또한 치열궁의 파열이 있는 부위로는 정상적인 교정적 치아이동이 곤란하다. 따라서 구순구개열 환자에 있어 골이식은 광범위하게 적용되고 있는 외과적 술식이다. 치조골을 이식함으로써 치조열은 안정화되고, 견치 또는 절치가 이식부위로 이동할 수 있게 된다. 그리고 골 이식 후, 교정을 통해 치조열 부위의 공간을 폐쇄함으로써 보철 치료 없이 치열을 재형성할 수 있다. 골이식술에는 다양한 이식재료가 사용되었다. 자가골을 이식할 경우 장골이 가장 선호되며, 그 밖에 경골, 늑골, 두개골, 하악골을 이용하기도 한다. 그리고 골이식은 골이식 시기에 따라 일차골이식, 조기 이차골이식, 이차골이식, 만기 이차골이식으로 구분할 수 있다. 이차골이식은 혼합치열기 말경에 시행되는 것을 말하며 가장 좋은 것으로 받아들여지고 있다. 영구 견치가 맹출되기 전에 이차골이식을 시행하면 인접치아의 맹출과 보존에 도움이 된다. 본 증례에서는 치조구개파열 환자의 장골에서 골을 채취하여 골 이식을 시행한 후, 골이 채워진 이식 부위에 인접 치아가 성공적으로 이동하거나 치축이 개선되고 교정치료를 통해 치열궁 배열의 만족스러운 결과를 얻었기에 이를 보고하는 바이다 Cleft lip and palate are congenital craniofacial malformation. Reconstruction of dental arch in patient with alveolo-palatal clefts is very important, because they have many problems in functions and esthetics. Malnutrition, poor oral hygiene, respiratory infections, speech malfunctions, maxillofacial deformity, and psychological problems may be occured without proper treatment during the long period of management of the cleft lip and palate. So the treatment should be managed with a multidisciplinary approach. Bone grafting is a consequential step in the dental rehabilitation of the cleft lip and palate patient. A complete alveolar arch should be achieved of the teeth to erupt in and to form a stable dentition. And the presence of the cleft complicate the orthodontic treatment. Therefore bone grafting in patients with cleft lip and palate is a widely adopted surgical procedure. Grafted bone stabilizes the alveolar process and allows the canine or incisor to move into the graft site. After the bone grafting, orthodontic closure of the maxillary arch has become a common practice for achieving dental reconstruction without any prosthodontic treatment. Various grafting materials have been used in alveolar clefts. Iliac bone is most widely fovoured, but tibia, rib, cranial bone, mandible have also been used. And according to its time of occurrence, the bone graft may be divided into primary, early secondary, secondary, late secondary. Bone grafting is called secondary when performed later, at the end of the mixed dentition. It is the most accepted procedure and has become part of treatment of protocol. A secondary bone graft is performed preferably before the eruption of the permanent canine in order to provide adequate periodontal support for the eruption and preservation of the teeth adjacent to the cleft. In this report, we report here on a patient with unilateral cleft lip and palate, who underwent iliac bone graft. The cleft was fully obliterated by grafted bone in the region of the alveolar process. The presence of bone permitted physiologic tooth movement and the orthodontic movement of adjacent tooth into the former cleft area. Satisfactory arch alignment could be achieved in by subsequent orthodontic treatment.

OSP 투자지능화 시스템의 고찰

오구영,임미숙,정재우,조용환 충북대학교 컴퓨터 정보통신 연구소 2000 컴퓨터정보통신연구 Vol.8 No.1

본 논문은 OSP(Outside Plant) 투자지능화 시스템개발을 위해서 국내외에서 개발하여 사용하고 있는 선로투자공급 시스템들에 대하여 관심을 두고, 관련된 시스템들을 조사하여 각각의 시스템의 특징 및 구성에 대하여 분석하였다. 이러한 분석결과를 토대로 국내 통신 사업체에서 통신망 계획 및 분석을 위해 앞으로 개발하여야 할 선로투자공급 모형에 대한 기준을 제시한다. This paper analysed systems that are developed as relevant systems for OSP. We focused their distinction and composition of each system which are developed and used to interior and overseas. This result is able to propose the standard model of a Intelligent System for OSP model which have to develop system for plan and analysis of communication network to telecommunication operator.

관동맥연축의 진단을 위한 Ergonovine Echocardiography의 안전성 및 임상적 유용성

송재관,박성욱,강덕현,조구영,나득영,이내희,이철환,홍명기,김재중,박승정 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.8

嫌惡施設의 立地體系分析 : 慶南 各 市郡의 쓰레기 埋立·燒却場을 對象으로 A Case Study of Waste Plant in Local Areas, Kyeongnam

金瑛,趙宰英 慶尙大學校生産技術硏究所 1999 生産技術硏究所論文集 Vol.15 No.-

This paper investigates the geographical distribution of waste plant in Kyeong-nam and population data by area(the smallest administrative boundary) The monocentric theory has dominated as a standard model of urban spatial structure during last a few decades. However, a standard model of spatial structure has come under increasing criticism because the experimental evidence for this theory is weak and polycentricism theory is appeared and widely used. Firstly, the purpose of this paper is to examine the pattern of waste plant location, secondly to analyse how polycentric model affect location system of waste plant and thirdly to understand the relationship between waste plant and population density in local areas, Kyeong-nam. This study have depicted the pattern of population density of rising with distance from waste plants in Kyeong-nam and so this study suggested that the redistribution of waste location in outward area are required. Finally, this waste location system will help us to understand the comprehensive land use planning conditions of whole Kyeong-nam.

벼 乾沓直播栽培時 播種期가 乾物生産에 미치는 影響

朴栽成,朴成圭,李尙榮,洪性澤,池在浚,趙東三,孫錫龍 충북대학교 농업과학기술연구소 1999 農業科學硏究 Vol.16 No.-

This experiment was carried out to obtain indispensable information to establish comprehensive cultural method of rice in direct seeding on dry paddy at Chungbuk Agricultural Research and Extension Services. Effect of seeding date on dry matter production, yield components and yield were studied. Seeding on May 5 ensured the highest maximum number of tillers, while transplanting on May 20 gave the highest rate of effective tillers. Number of effective tillers was greater in the order of Hwajinbyeo, Hwaseongbyeo, Daekwanbyeo. Lengths of upper three leaves were increased at later seeding, but leaf width was not affected by seeding date. Ratio of leaf blade weight was higher in earlier seeding during 30 days before heading but was higher in later seeding during 30 days after seeding, and was higher in the order of Hwajinbyeo, Hwaseongbyeo, Daekwanbyeo. CGR, RGR and NAR were not significantly different among seeding dates during 30 days before heading, but were lower in later seeding during 30 days after seeding. LAR was not affected by seeding date during 30 days before heading, but was higher at seeding on May 5 in heading date and during 30 days after heading. Dry weight of leaf blade, leaf sheath and culm, ear and total biomass during 30 days before heading and heading were highest in May 5 seeding. Daekwanbyeo and Hwaseongbyeo in May 5 seeding and Hwajinbyeo in April 20 seeding brought the highest yield with greater number of spikelets, higher ripening ratio and greater 1,000 grain weight, and harvest index and grain/straw ratio were Increased at earlier seeding. There were significantly positive correlations between number of panicles per m2 and LAI at 30 days before heading and heading, dry matter weight of leaf blade and total mass at heading. On the other hand, there were significantly negative correlations between seeding date and ripened grain ratio. 1,000 grain weight and yield, and between 1,000 grain weight and leaf length of 2nd, respectively.

석회 안정화 슬러지와 플라이 애쉬 혼합재의 매립지 복토재로의 이용타당성세 대한 연구

김영관,조홍재 江原大學校 附設 環境硏究所 1996 環境硏究 Vol.13 No.-

Feasibility of using the mixture of a lime-stabilized municipal wastewater sludge and the fly ash as a landfii cover matetial was studied. the mixnures were prepared by varying mixing ratios. and their geotechnical propertes were experimentally determined. The appropriate mixing ratio of lime : sludge : fly ash for stabilization. which was the ratio to hold the pH of sludge-fly ash mixture above 12.0 for at least 2 hours with containing the fly ash content as much as possible. was 5 : 15 : 80. Plasticity index(PI) of the mixture drastically decreased at a sludge content less than 60% Maximum dry density linearly increased with fly ash. In the direct shear test the sludges were found to have an internal friction angle of 30.2" and a cohesion of 0.3kg/㎤. The internal friction angle of the mixture was found to increase with increasing fly ash content. Results of the consolidation tests showed that addition of fly ash to the sludge decreased both compression index and the secodary consolidation coefifcient while it increased the consolidation coefficient. In permeability tests using a consolidometer. permeability of 1 X10^(-7)㎝/s.I which is required in U.S. EPA standard as a landfill liner. was attained indicating a possibility of using the tested mixture as a landfill cover material.

韓國人의 足紋에 關한 定量的 硏究

李金泳,吳永南,馬在濚,曺徵 全北大學校 基礎科學硏究所 1991 基礎科學 Vol.14 No.1

한국인의 정상 남자 112명, 여자 118명 총 230명의 460足蹠에 나타난 皮紋을 분석하여 다음과 같은 결과를 얻었다. 1) 족척의 중간부의 降線 方向은 橫行(76.5%), 輕度의 비골측 近位傾斜(11.5%), 輕度의 비골측 遠位傾斜(11.1%), 뚜렷한 비골측 遠位傾斜(0.9%)의 순으로 나타났으며 중간부의 융선 배열에 대한 대칭 빈도는 63.9%로 나타났다. 2) 무지구부 紋形은 원위측 제상문(64.8%), 와상문(20.2%), 개방문(5.9%)의 순으로 나타났으며 무지구에 나타난 대칭 빈도는 83.2%이었다. 3) 趾間部 紋形은 Ⅱ지간부에서는 개방문(73.7%), 원위측 제상문(22.2%), 근위측 제상문(3.3%), 와상문(0.9%)의 순으로, Ⅲ지간부에서는 개방문(54.8%), 원위측 제상문(41.7%), 와상문(2.4%), 근위측 제상문(1.1%)의 순으로, Ⅳ지간부에서는 개방문(81.7%), 원위측 제상문(17.4%), 와상문(0.9%)의 순으로 나타났다. 4) 趾間部 降線數는 a-b 57.76, b-c 70.74, c-d 75.09이며 남녀 사이, 또는 양족 사이에는 통계적으로 유의한 차이가 없었다(P>0.01). The dermatoglyphic patterns of the hands and feet form during early fetal life and thereafter remain essentially unchanged. These traits are useful to study genetics and environmental factors that influence prenatal life and used in practice for personal identification and diagnosis of some diseases. The students of 112 male and 118 female were tested for the patterns of plantar regions. The most common patterns were open fields in the four interdigital areas and the frequency of the mirror pattern on them was 57.2%. For a-b, b-c and c-d ridge counts of the plantar interdigital areas sampled from 105 male and 109 female students, the nonsignificances were found between both sexes and between both feet.

效率的인 都市成長管理를 위한 開發制限區域 接境地域의 管理方案

金瑛,趙宰英,文美景 경상대학교 생산기술연구소 2000 生産技術硏究所論文集 Vol.16 No.-

For classification of the border areas, this study attempts a discriminant analysis using two kinds of main characteristics: land-use variables and land-price variables; consequen1ty the management strategy of the border areas is subdivided into 4 functional types according to hit ratio. The results of this study can be summarized as follows. (1) A-type area requires management strategy connected to town's function because it is similar to high-density-town. (2) B-type area resulted from not only a restrictive land-use control but also in need of environmental preservation under development pressure. Accordingly the management of this type of area requires especially residential participation. (3) Since C-type area is in close connection to the suburbs of towns, the management of this area demands both conservation and development through environmentally affection and sustainable management strategy. (4) The management of D-type area is closely related to that of Green Belt area because it is given more developmental pressure with town expanding in consideration of land-use and land-price. And since this area is used for woodland or farmland, it is necessary to prevent from sprawling development and conserve environment.

PDLC의 상 변환 특성

김영식,이영재,조무희 단국대학교 1996 論文集 Vol.30 No.-

Phase separated liquid crystal in PDLC(polymer dispersed liquid crystal) has a characteristic behavior of alignment by the external electric field. There are three kinds of methods for fabrication of PDLCs, PIPS(polymerization induced phase separation), TIPS(thermally induced phase separation),and SIPS(solvent induced phase separation). We have made PDLC samples by using the TIPS method and studied the characteristics of phase separation, We have used 5CB(K15), 8CB(K24), and 10CB(K30) as liquid crystal, and PMMA and PVEM as polymer. Phase separation characteristics according to the rate of temperature cooling were observed by a polarization microscope, and quantitatively measured by light scattering method.

구리 耐性菌(Pseudomonas stutzeri)의 菌體內 구리 蓄積機作

許鍾秀,曺周植,韓文圭,李洪宰,林永成 경상대학교 환경보전연구소 1994 環境保全硏究所報 Vol.2 No.1

In order to study the mechanism of the copper accumulation in the cell of copper-tolerant bacterium, Pseudomonas stutzeri, distribution of the copper in the cell were investigated. Approximately 61% of the accumulated copper was distributed on the cell wall and the other 39% portion was in cytoplasm. 78% of the copper in the cell wall fractions was present in the polyphosphate and polysaccharide fractions, but most of copper in the cytoplasm fractions was in protein and nucleic acid. Copper affected the protein synthesis in P. stutzeri. The intracellular protein content was decreased by copper addition, but the soluble protein precipitated by ammonium sulfate(30-75% saturation) was increased as compared to that from the cells grown without copper. Furthermore, in the cells grown with copper, high-molecular-weight soluble protein was increased, compared with the cells grown without copper, but low-molecular -weight soluble protein was decreased. These results indicate that copper inhibited the intracellular protein biosynthesis but enhanced the biosynthesis of the high-molecular-weight soluble protein precipitated by ammonium sulfate(30-75% saturation).