Long-term Stability after Reduction of Mandible Fracture by Keyhole Plate: Evaluation at the Time of Plate Removal

Cheon, Kyeong-Jun,Cho, Seoung-Won,Jang, Won-Seok,Kim, Ju-Won,Yang, Byoung-Eun Korean Association of Maxillofacial Plastic and Re 2020 Maxillofacial Plastic Reconstructive Surgery Vol.42 No.-

Background: Various types of miniplates have been developed and used for the reduction of facial bone fractures. We introduced Yang's Keyhole (YK) plate, and reported on its short-term stability. The purpose of this study was to evaluate the long-term stability of the YK plate, as a follow-up study, by examining the patients who had used the YK plate among the patients with the reduction of mandible fractures and who visited for plate removal. Methods: We reviewed the medical records of 16 patients who underwent mandibular fracture fixation using a YK plate (group I) and 17 patients who underwent mandibular fracture fixation using a conventional plate (group II). Assessment was then made on malunion, occlusal stability, discomfort during the application, and clinical symptoms. Results: From January 2015 to December 2017, a total of 36 patients underwent mandibular fracture surgery using a YK plate. A total of 16 patients received plate removal. Among them, 15 were male and 1 female. The average age was 26 years. The applied surgical sites were the 12 on mandibular angle, 4 on mandibular symphysis, and 2 on subcondyle. The application period of YK plate was an average of 335 days. During the same period, 45 people underwent surgery on the conventional plate. A total of 17 patients received plate removal. Among them, 15 were male and 2 females. The average age was 36 years. The applied surgical sites were the 8 on mandibular angle, 4 on mandibular symphysis, and 2 on subcondyle. The application period of the conventional plate was an average of 349 days. No malocclusion occurred at the time of removal, and occlusion was stable. No patient complained of joint disease or discomfort. Conclusion: The YK plate system, in which the screw was first inserted and the plate was applied, for clinical convenience did not cause any particular problem and no significant difference from the conventional plate.

Accent-Epenthesis Interaction Revisited

Hyun-ju Kim,In Young Yang 한국언어학회 2016 언어 Vol.41 No.2

Kim, Hyun-ju and In Young Yang. 2016. Accent-Epenthesis Interaction Revisited. Korean Journal of Linguistics, 41-2, 239-265. This study investigates the lexical statistical patterning in North Kyungsang Korean accent-epenthesis interaction. Previous phonetic studies of Korean epenthetic vowels showed that inserted vowels are not phonetically distinct from corresponding lexical vowels (Kim & Kochetov 2011; H-J. Kim 2015), suggesting that complete neutralization would not help NKK speakers access underlying representations of epenthetic vowels to avoid accenting epenthetic vowels. We performed a corpus study to examine whether other informative cues are available in the lexical probabilistic patterning, which might help NKK speakers with the covert interaction of accent and epenthesis. The results show that the lexical stochastic patterns would not provide a cue for the accent avoidance of epenthetic high vowels. Rather, it is assumed that there is a clear distinction of lexical strata in Korean phonology, helping NKK speakers learn the interaction. We propose a formal analysis adopting comparative phonotactics developed by Hayes (in press), based on two lexical strata: NATIVE and FOREIGN (e.g., Ito and Mester 1999). This analysis provides a better approach to accounting for the covert interaction that does not involve the learnability problem. (The State University of New York, Korea and Seoul National University)

Vitamin D and carotid subclinical atherosclerosis in SLE

( Chang Bum Bae ),( Ju Yang Jung ),( Bo Ram Go ),( Hyun Ah Kim ),( Chang Hee Suh ) 대한내과학회 2013 대한내과학회 추계학술발표논문집 Vol.2013 No.1

Vitamin D and carotid subclinical atherosclerosis in SLE Chang-Bum Bae, Ju-Yang Jung, Bo-ram Go, Hyun-Ah Kim, Chang-Hee Suh Department of Rheumatology, Ajou University School of Medicine, Suwon, Korea Introduction Atherosclerosis develops earlier in systemic lupus erythematosus (SLE) and is the important cause of mortality. It has been suggested that vitamin D deficiency contributed cardiovascular disease and immune dysregulation in SLE. Methods One-hundred two female patients with SLE and 52 normal controls (NC) were recruited. The carotid artery intima-media thickness (cIMT) and plague were assessed by B-mode ultrasound at the carotid artery level. Vitamin 25(OH)D3 levels were checked by immunoradiometric assay using the Bio-Line 25(OH)D3-Ria CT kit (Bio-Line S.A., Belgium). Disease activity markers were checked at the time of enrollment. Results The cIMT of SLE is 0.41±0.08mm, which is higher than NC (0.37±0.11 mm, p=0.012). Also, carotid artery plague index (PI) of SLE is higher than NC (0.68±1.39 vs 0.26±0.87, p=0.026). The cIMT was correlated with age (r=0.442, p<0.001), body mass index (r=0.246, p=0.013), waist-hip ratio (r=0.245, p=0.013), SLE disease activity index (r=0.239, p=0.016), taking aspirin (r=0.244, p=0.013), and the carotid artery PI was correlated with renal involvement (r=0.224, p=0.023) in patients with SLE. Vitamin 25(OH)D3 was not showed correlation with cIMT and carotid artery PI. Also, it was not correlated with disease activity markers. Conclusion In patients with SLE, the risk of cardiovascular disease measured by cIMT and carotid artery plaque was higher than NC, which may be derived from systemic inflammation. However, vitamin D levels were not showed significant correlations with carotid subclinical atherosclerosis. It may be not suitable to assess vitamin D as marker of disease activity or subclinical atherosclerosis.

우리 나라 中小都市에 存在하는 人爲的 火災 要素

金賢珠(Kim Hyun-Ju),姜良錫(Kang Yang-Suk) 대한국토·도시계획학회 1999 國土計劃 Vol.34 No.2

The urban hazard factors have a close relationship with the development processes of each city. The urban structures of most of the small-and medium-sized cities in Korea have typically evolved from the rural settlements so that they comprise the urban hazard factors that are quite distinct from those of the large cities. This study, based on the case of Yang-Pyong Town, scrutinizes the man-made urban hazard factors that exist in the inner urban areas of the Korean small cities. Were the results of this study combined with the findings of the previous studies on the metropolitan cities by the author, one could effectively integrate the comprehensive checklists required for the preventive actions against the urban hazard factors. Furthermore, were the circumstances of the numerous cities surveyed then compared under the uniform checklists proposed herein, the priority of the specific locales that need rectification could effectively be identified by their urgency so that the local governments’ budgets for such counteractive plans could be managed more efficiently.

Treadmill을 이용한 중년 여성들을 혈중지질의 변화

양주철,이일호 경남대학교 교육문제연구소 1999 敎育理論과 實踐 Vol.9 No.-

The Purpose of the study is to know the Relation of the disease of adult people. The plasma Lipoprotein after treadmill exercise routines. The subjects were 15 healthy woman in their 40s and proceeded the exercise 12 weeks at the 70%of their maximal heart rate. the training frequency was 5 times a week and exercise time the 30 minutes. 1. T.G are reduced significantly after 12-week training 30.4mg/dℓ comparing with them before training. (P< 0.05) 2. LDL-C are reduced signigicantly after 12-week 29.5mg/dℓ training comparing with them before training. (P< 0.05) 3. HDL-C are reduced significantly after 12-weektraining. (P< 0.05) 4. Hb are reduced significantly after 12-week 6.4mg/dℓ training comparing with them before training. (P< 0.05) In conclusion, when the subjects continued doing exercise for 12 weeks at the intensity of 70% their maximal heart rate, the serum lipid was chanced reducing significantly. Accordingly, the training intercity and duration of this study sill natice the importance if chronic exerese in their 40s woman.

20대 여성의 치아우식활성검사 결과와 치아우식경험도와의 상관성에 관한 연구

양정승,전주연,이현옥 광주보건대학 1994 論文集 Vol.19 No.-

The purpose of this study was as follows: This study was to examine caries activity test and survey caries experience of 120 girl students in college. We examined correlation the results of caries activity test and caries experience. First of all, examined Snyder test, stimulated saliva flow rate test, unstimulated saliva flow rate test, salivary viscosity test, patient oral hygiene performance test. We surveyed cries eperience as caries experienced permanent tooth index and caries experience permanent tooth rate etc, calculated the simple correlation index, examined statistical significant. The results of this study showed that stimulated saliva flow rate test was the highest of caries activity test measurement. In caries activity test statistical significant correlation. It was the correlation index- 0.2136 and p=valuable level 0.010. Snyder Test had correlation, was the correlation index 0.1779, and p-value level 0.026. There was no significant correlation unstimulated saliva flow rate test and patient oral hygiene performance test.

송아지고기 소시지와 시중에 판매되는 우육과 돈육 소시지 제품의 저장특성 비교

이주호, 최정석, 이현진, 정구용, 최양일 忠北大學校 農業科學硏究所 2013 農業科學硏究 Vol.29 No.1

This study was undertaken to compare the storage characteristics between veal sausage and commercial pork and beef sausages in Korean domestic market. We manufactured 3_types of sausages and purchased 2_types of sausages in the market: T1(B-company product), T2(O-company product) and we made T3(smoked veal sausage), T4(smoked veal sausage with pepper) and T5(cooked veal sausage) products. During 20 days of storage at 4oC, T5 showed significantly higher in TBA value and VBN value (p<0.05). But TBA and VBN values showed normal range in all products. T3, T4, and T5 showed higher total microbial count than T1 and T2 (p<0.05). According to the result, beef and pork sausages in the market showed different total microbial count and VBN values from those made in laboratory. This result could be come from the different additives used and manufacturing processes. However, all products can be stored up to 20 days in the cooler.

대학생들의 비서인식조사

양혜선,이영희,이주혜 이화여자대학교 법정대학 비서학과 1991 비서학연구 Vol.- No.11

육우 비선호 부위를 활용한 육우햄의 품질특성

이주호, 최정석, 정준영, 최양일 忠北大學校 農業科學硏究所 2012 農業科學硏究 Vol.28 No.3

This study was undertaken to compare the quality characteristics of dairy beef ham. Dairy beef hams were manufactured using non-preferred portion (top round). 5 treatments were prepared: T1(beef 50% + pork emulsion 50%), T2(beef 65%emulsion 35%), T3(beef 80%emulsion 20%), T4(beef 90%emulsion 10%), T5(beef 100%emulsion 0%). In chemical composition, dairy beef content increases, moisture content was increased, fat content was decreased. In the meat quality characteristics, T5 showed higher (p<0.05) water holding capacity value than the others. Dairy beef content increases, product loss and cooking loss were decreased. In hunter color, dairy beef content increases, redness was increased. In texture profile analysis, T4 and T5 were significantly higher than the others. As a result, dairy beef ham with 80~90% dairy beef and 10~20% pork emulsion has low fat content, high product yield and superior texture profile, which could be developed as a dairy beef hams using non-preferred portion.

센서 위치 보정을 통한 원추형 자기베어링 로터의 위치 제어

양승준,곽병철,김주영,이재응 중앙대학교 기술과학연구소 2001 기술과학연구소 논문집 Vol.31 No.-

이 논문에서는 원추형 자기베어링으로 지지된 고속 연삭기 로터의 정밀진동제어에 관한 연구를 수행하였다. 이러한 연구 목적으로 달성하기 위하여 전력증폭기와 원추형 자기베어링을 포함한 각 축에 대하여 이산시간 모델을 규명하였으며, 그 결과를 모의 제어기의 설계시 활용하였다. 또한 제어기의 입력값을 조절하여 자기베어링 공간내에 로터가 최적의 위치에 놓일 수 있도록 조정하였으며, 위치를 검출하는 센서와 전자기적 흡인력을 발생하는 액츄에이터 사이의 위치 불일치를 보정하는 방법을 개발하고 실험 대상에 적용하였다. 그 결과 front 방향과 rear 방향 사이의 연성 효과가 확연히 감소되었고, 로터 회전시의 진폭이 50,000 rpm에서 ±7㎛ 이내의 성능을 보이는 정밀 진동 제어를 수행하였다. In this paper, the precise vibration control problems of high speed grinding rotor supported by cone-shaped active magnetic bearings are investigated. Toward this end, each part of the system including power amplifiers and magnetic bearing systems are identified s discrete time models, and the results are used for controller design. In addition, the correction method of the position error between sensor and actuator are developed and implemented for the experiments. As a result, the coupling effect between front and rear axis are decreased and the amplitudes of rotor vibration are controlled within ±7㎛ at 50,000 rpm.