전치부 개교합을 가진 골격성 제 Ⅲ급 부정교합 환자에 있어서 하악지 시상분할 골절단술후 술후 안정성에 관한 평가

임재석,권종진,장현석,손형민,남영원,최철민 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.6

The purpose of this study is to assess the postoperative stability and the tendency of relapse after both sagittal split ramus osteotomy in skeletal class III with anterior open bite. This retrospective study was based on the examination of 15 patients, 6 males and 9 females, with a mean age 23.1 years. The patients were divided into two groups based on the amount of preoperative overbite(group I:<1mm, group II:≥1mm). Serial lateral cephalometric radiographs were taken within 2 weeks preoperatively, within 1 week postoperatively and at a follow up period that ranged from 7 to 24 months postoperatively. All cephalometric radiographs were traced and digitized using the Quick ceph image Pro for analysis. And then, horizontal and vertical changes of reference points(B point, Pogonion, L1) were assessed by the linear measurements in millimeters on both axes. The results were as follows : 1 Mean horizontal relapses were 0.67±0.93mm (11%) at B point (P<.05) and 0.81±1.01mm (13.2 %) at Pogonion (P<.01). 2, Mean vertical relapses were 0.63±1.62mm (33.3%) at B point and 0.53±1.95mm (31.4%) at Pogonion (P>.05) 3. The mean angular change of occlusal plane to SN was 0.24±1.19 (P>.05) and that of mandibular plane to SN was 1.03±1.85 (P<.05). 4. There was correlation between the extent of preoperative overbite and the postsurgical relapse at B point and Pogonion. 5. There was no correlation between the amount of surgically produced horizontal movement and the postoperative horizontal relapse at B point.

ISI 프로토콜에서의 인증에 관한 연구

최길림,이재동,정광민 慶南專門大學 2000 論文集 Vol.28 No.1

웹 기반 사이버 코스웨어 저작 도구의 설계 및 구현

최길림,김현주,이재동 慶南專門大學 2001 論文集 Vol.29 No.1

양악 수술후 상악전진에 의한 상순 및 비부의 연조직 변화에 대한 두부계측방사선학적 연구

임재석,최철민 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.3

In case of dentofacial deformity patient, Lefort I osteotomy and BSSRO are popular methods to correct the deformity. The purpose of this orthognathic surgery is to achieve esthetic facial appearance and proper function. Various articles have been reported on soft tissue change after orthognathic surgery in terms of esthetics. Especially a change of soft tissue in upper lip and nose is important to gain facial esthetic profile. To obtain accurate prediction of postsurgical esthetics, a proper understanding of relationship between maxillary surgical movement and soft tissue change. In other words, it is very helpful in treatment planning and progonsis of orthognathic surgery to predict soft tissue changes related to hard tissue chamge. A retrospective study of selected patients was undertaken to estimate and analyze the changes of soft tissue in upper lip and nose following surgical correction with Lefort I osteotomy and BSSRO. Preoperative, postoperative, and retention period data derived from lateral cephalometric analysis.

구개결 언어에 대한 Screening test와 설문조사의 비교분석

임재석,권종진,장현석,박영준,최철민,전상호,장수정 大韓顎顔面成形再建外科學會 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.6

Purpose : This study was carried out to evaluate the abnormalites of the speeches of the cleft patients and compare the results of the speech evaluations of a speech pathologist with those of parents. Materials and Methods: Eleven cleft patients' parents were questioned about their children's speech and then the speeches of the cleft patients were evaluated by a speech pathologist and their results were compared with those of parents. Results : Nasal emission was noted in twenty percent of patients, with thirty percent demonstrating hypernasality and all demonstrating no hyponasality and aspirate. And twenty percent of patients show hoarseness. There was no statistically significant difference in the sensitivities to nasal emission between the speech pathologist and parents (p>0.05). However the speech pathologist is more sensitive to hypernasality than parents(p<0.05).

네트워크 모델에서 원형 문자열 정렬에 관한 연구

이재동,최길림,김순철 慶南專門大學 2000 論文集 Vol.28 No.1

HRTF(머리저달함수)의 샘플링률 변환에 따른 입체음향 플레이어

오재경,이동재,임철수,최범석,이원돈 호서대학교 반도체제조장비국산화연구센터 2001 반도체장비학술심포지움 Vol.2001 No.-

본 논문에서는 3D사운드 생성 기술 중 대표적인 방법인 원음에 HRTF(머리전달함수)를 콘볼루션(convolution하는 방식으로 음상정위 모듈을 구현하였으며 음장감을 부여하기 위하여 잔향(reverberation)효과를 추가하고 크로스토크 현상을 제거하기 위하여 트랜스오럴 필터를 추가하였다.본 논문에서는 sampling rate conversion을 사용하여 decimation과 interpolation을 수행하여 44.1KHz의 sampling rate로된 coefficient를 downsample하거나 upsample한 HRTR(머리전달함수)를 사용하여 콘볼루션(convolution)을 수행했다.본 논문에서는 3D사운드 생성과정에서 필요한 연산과정을 최소화하여 일반 PC의 computing power로도 sampling rate conversion된 데이터를 처리하여 줄 수 있는 알고리즘을 제시하고 구현하였다.

단체급식 관리에 관한 연구(Ⅱ) : 食單分布를 通한 through Menu Analysis

朴栽林,崔味愛 新羅大學校 1980 論文集 Vol.8 No.-

Menus from 20 facilities in which group food service was being done with nutritionist were analyzed to get useful data for better food service. Analyzed menus were those used in January, April, July and October in 1978 in Busan. The results are as follows: 1. The facilities provided calorie and nutrients more than what the survey of Nation's Nutrition has revealed or the amount recommended by Korea FAO Association as desirable. The calorie was supplied with 74.92 per cent of carbobydrate, 14.14 per cent of protein and 10.94 per cent of fat. 2. The least calorie was supplied in summer, and the least calorie and nutrients supplied to the middle-level of work among the three levels of work. 3. The food & descriptions such as group 1(cereal & grains), group 2(starch and starch roots) and group 4(legumes) showed negative correlation to the other groups but the rest showed positive correlation. Meanwhile, correlation between nutrients and food & descriptions did not go far beyond a common knowledge. 4. Nutrients intakes provided by each facility was more than the amount recommended by Korea FAO Association except for Fe in 4 facilities and vitamin A in 8 facilities. 5. Animal protein got 31.14 per cent among the whole protein intakes, and fish & shell fish was the main source of animal protein. 6. In summer, less calorie was supplied in 4 facilities than the amount recommended by Korea FAO Association.

釜山地方의 非點源 汚染物質의 排出樣相

吳英敏,林哉明,崔義昭 東亞大學校 大學院 1984 大學院論文集 Vol.8 No.2

This study was conducted to investigate nonpoint pollutant discharges from the Busan area while raining. The artificial parameters used for this study were BOD, COD, and SS. Bo Soo-Chun was selected as the sampling site for the urban discharge. Flows and the concentrations of pollutants were measured during dry and wet weather conditions for this area. The results of this study are as follows; 1. The population equivalents of pollutants flowed into the Bosoo-Chun for the period of dry weather were 37 BODg/day, 55 CODg/day, and 30 SSg/day. 2. The maximum concentrations of pollutants in the Bosoo-Chun at the first flush were 3.2, 4.3, and 21.7 times in BOD, COD, and SS respectively that at the period of dry weather. 3. In case of continuous wet weather, the concentrations of pollutants in the Bo Soo-Chun were 2.1, 1.9, and 5.2 times in BOD, COD, and SS respectively the maximum concentrations at the period of dry weather when rainfall was 8 mm/hr. 4. The correlation equations of rainfall and the discharges of pollutants during rainfall are as follows; Kg BOD/㎢=18.07 (rainfall (mm/hr))²-28.43 (rainfall (mm/hr)) + 74.38 Kg SS/㎢ =28.19 (rainfall (mm/hr))²-35.89 (rainfall (mm/hr)) + 53.67

성악골 절제술후 발생한 중앙부및 구개 결손부의 재건

김훈,임재석,최성원,김호겸,권종진,최미숙,김성문 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.1

There are various defects caused by trauma or resection of maignant tumor in the orofacial region, which can be reconstructed with various regional and pararegional flaps. Among these defects, it is very difficult to reconstruct palatal and midfacial defects after maxillectomy and patients have problems in speaking and swallowing of food. Therefore it is very important for surgeons to reconstruct these defects functionally and esthetically and to return the patients to the normal social activity. These defects are usually obturated with prosthodontic appliances to assist the phonation and swallowing. But nowadays surgical reconstruction by various flaps was considered and performed for better rehabilitation. For this purpose the forehead flap, the nasolabial flap, the tongue flap, the sternocleidomastoideous flap, the temporal flap, the latissimus dorsi flap, the scapular flap etc. are used. We reconstructed small-sized plalatal defects with tongue flap, medium-sized palatal and maxillary defects after maxillectomy with temporal myofascial flap and large midfacial defects including eyeball exenteration with latissimus dorsi myocutaneous flaps. Here we are to report 5 cases of these flaps used for the reconstruction of palatal and midfacial defects and consider the versatility, reliability and limitation in use of these flaps.