약관절강내 천자술시 히알루산(Hyaluronic acid) 사용에 대한 임상적 연구

권병곤,김재승,여환호 大韓顎顔面成形再建外科學會 1999 Maxillofacial Plastic Reconstructive Surgery Vol.21 No.4

To compare the effect of hyaluronate and dexamethasone on the temporomandibular joint arthrocentesis the author investigated 22 temporomandibular joint disorder(TMD) patients with pain and limitation of mouth opening who visited at the Department of Oral and Maxillofacial Surgery. Chosun Dental Hospital and were made a diagnosis as Wilkes stage Ⅲ or Ⅳ of TMJ internal derangement clinically and radiographically. The two groups consisted of 10 patients with injection of sodium hyaluronte 10mg(Artz)(hyaluronate group) on the upper joint space of the affected temporomandibular joint 5 times at intervals of a week after arthrocentesis, and 12 patients with injection of dexamethasone(Oradexon) at a time(dexamethasone group). Maximum mouth opening, pain value and satisfaction value during mastication were assessed on a visual analog scale before arthrocentesis and after 6 months. Then the within-group and between-group differences were evaluated in the obtained data and the clinical success rate of each group was calculated according to our success criteria. The results were as follows. 1. the mean of maximum mouth opening before arthrocentesis and after 6 months in the hyaluronate group were 24.9mm and 39.0mm respectively, and those before arthrocentesis and after 6 months in the dexamethasone group were 25.7mm and 41.3mm respectively. 2. The mean of pain value on a visual analog scale in the hyaluronate group before arthrocentesis and after 6 months were 6.7 and 1.8 respectively, and those in the dexamethasone group before arthrocentesis and after 6 months were 7.0 and 1.8 respectively. 3. The mean of satisfaction value during mastication on a visual analog scale in the hyaluronate group before arthrocentesis and after 6 months were 2.8 and 7.7 respectively, and those in the dexamethasone group before arthrocentesis and after 6 months were 3.1 and 7.8 respectively. 4. There were statistically significant differences between all meansurements before arthrocentesis and after 6 months(P<0.001), but no difference between all meansurements in the hyaluronate group and those in the dexamethasone group. 5. The over all success rate of the hyaluronate group and the dexamethasone group were 60.0% and 63.6% respectively. In summary, there was significant difference between the effect of hyaluronate and dexamethasone on the temporomandibular joint arthrocentesis but hyaluronate is better than corticosteroid as the injection drug in consideration of the side effect related with repeated injection.

고탁도시 DAF 정수장의 운영 및 진단

권순범,안효원,강준구,손병용 대한상하수도학회 2004 상하수도학회지 Vol.18 No.2

DAF process has been designed considering raw water quality characteristics in Korea. Although direct filtration is usually operated, DAF is operated when the freshwater blooms occur or raw water turbidity become high. Pre-sedimentation is prepared in case when raw water turbidity is very high by rainstorms. A main feature of this plant is that the operation mode can be changed (controlled) based on the characteristics of raw water to optimize the effluent quality and the operation costs. Treatment capacity (surface loading rate) and efficiency of DAF was found to be better than conventional sedimentation process. Moreover, lowdensity particles (algae and alum flocs) are easily separated while it is difficult to remove in sedimentation. One of the main concerns in adoption of DAF (Dissolved-Air-Rotation) process is a high raw water turbidity problem. That is, DAF is not adequate for raw water, which is more turbid than 100MU. In order to avoid this problem, pre-sedimentation basins are prepared in OAF plant to decrease the turbidity of DAF influent. For simulation of the actual operation, bench and full-scale tests were performed for highly turbid water conditions. Consequently, DAF process coupled with sedimentation is suggested that pre-sedimentation with optimum coagulation prior to DAF would be appropriate.

韓國 地域經濟開發 理論 分析

權炳武 건국대학교 1982 商經論叢 Vol.- No.17

산소분리막에 의해 상승된 산소농도가 가솔린기관의 성능에 미치는 영향

권병철 大田産業大學校 1993 한밭대학교 논문집 Vol.10 No.1

AbstractThe aim of the study is to improve the performance of the gasoline engine. Recently, the oxygen membrane enriching the oxygen in the air has been developed and used in many engineering field.The engine performance is changed by deeply saturated oxygen concentration supplied to the combustion chamber. According to the oxygen concentration of the fuel air mix- ture, the engine performance is improved as follows.It is shown that the mean effective pressure, output and thermal efficiency is increased, however, fuel consumption rate is decreased as increasing oxygen concen- tration.The oxygen concentration have great effect on the combustion at the poor limit rather than fuel excess state. The aim of the study is to improve the performance of the gasoline engine. Recently, the oxygen membrane enriching the oxygen in the air has been developed and used in many engineering field. The engine performance is changed by deeply saturated oxygen concentration supplied to the combustion chamber. According to the oxygen concentration of the fuel air mixture, the engine performance is improved as follows. It is shown that the mean effective pressure, output and thermal efficiency is increased, however, fuel consumption rate is decreased as increasing oxygen concentration. The oxygen concentration have great effect on the combustion at the poor limit rather than fuel excess state.

넙치, Paralichthys olivaceus의 수온 자극 스트레스에 대한 사료첨가제 투여 효과

권문경,박상언,방종득,조병열,이상민,박수일 한국어병학회 2003 한국어병학회지 Vol.16 No.3

본 연구는 넙치의 수온 스트레스에 대한 사료첨가제 (미역 5%, 미역 10%, 어보산 0.5%, 고추냉이 잎 2%, 고추냉이 줄기 2%)의 영향을 혈액학적, 면역학적 측면과 Edwardsiella tanda를 사용하여 질병에 대한 저항성으로서 평가하였다. 혈장의 글루코즈와 콜티졸 농도는 1차 수온 변동 후 대조구에 비하여 미역 5%와 고추냉이잎 2% 첨가구에서 유의적으로 낮게 나타났다(P〈0.05). 1차 수온 변동 후 혈장 라이소자임 활성과 E. tarda의 공격 시험 후 생존율은 미역 5%첨가구에서 대조구에 비하여 유의적으로 높게 나타났다(P〈0.05). 본 실험 결과 미역 5% 첨가 사료 투여는 넙치의 스트레스 상태에서 질병 감염에 대한 저항성을 높일 수 있을 것으로 사료된다. The effect of each dietary supplements (Undaria 5%, Undaria l0%, Obosan 0.5%, Wasabi leaf 2%, Wasabi stem 2%) on the water temperature fluctuation in juvenile olive flounder (Puralichthys olivaceus) was investigated. The response to stress was assessed in terms of effects on haematological and immunological, and resistance against Edwurdsiella tarda infection. Plasma glucose and cortisol levels were significantly lower in 5% undaria and 2% wasabi leaf supplement groups than the controls after the first change of water temperature (P<0.05). The plasma lysozyme activities and the survival rates from E. tarda infection were significantly higher in the 5% undaria supplement groups than the control (P<0.05). These results suggest that the 5% undaria supplement seems to be contributable to the increased disease resistance on olive flounder.

2사이클 가솔린기관의 단속연소에 관한 연구

권병철 大田産業大學校 1999 한밭대학교 논문집 Vol.16 No.1

The discontinuous combustion takes place in the two cycle engine when it is subjected to the part loaded. This is because the intake concentration of scavenging gas is low. The discontinuous combustion acts as the main source for noise-vibration, green-colored gas, fume, and knock. In this study, the influences of the kind of cylinder head and the ignition position upon the discontinuous characteristics are systematically examined. The results obtained are as follows. 1. The ignition rate of hemispherical head is better than that of wedge type head and shell type head. 2. The ignition rate of wedge type head and shell type head is improved if the ignition position is changed. 3. The limits of back fire of wedge type head and shell type head are located at leaner side than the hemispherical head is.

사진의 자동식별을 위한 영상신호 처리

권병헌,이원명,황병원 한국항공대학교 1992 論文集 Vol.30 No.-

인간은 거의 아무런 노력없이 얼굴을 확인한다. 그렇지만 이러한 작업을 수행하는 자동시스템을 구현하는 일은 무척 어렵다. 얼굴 인식을 수행하는 시스템은 범인확인, 보안시스템, 그리고 화상전화등 여러분야에 응용될 것이다. 본 연구에서는 얼굴 인식에 부과되는 기본적인 문제들을 검토하였다. 이 문제들로는 얼굴의 표현, 얼굴의 검출, 얼굴의 확인 그리고 얼굴 표정의 해석등을 들 수 있다. 또한 얼굴 인식에 사용되는 특징 추출 알고리즘을 제안하였고 이 알고리즘에서는 얼굴의 특징점을 추출하기 위하여 피드백 메카니즘을 사용하였다. Humans identify faces with little or no effort. However, building an automated system that accomplishes this task is difficult. A system that performs face recognition will be adapted to many applications, for example, criminal identification, authentication in secure system, and videophone, etc. In this study fundamental problems of face recognition is discussed. These are as follows; representation of face, face detection, face identification, and analysis of facial expressions. Also, feature extraction algorithm for face recognition is proposed. In this algorithm the feedback mechanism is used. It is applied to identification system by using the result of this survey.

僻地國民學校의 學校經營 診斷

權容萬,金炳斗 春川敎育大學 1968 論文集 Vol.0502 No.-

종이상자포장기의 개발에 관한 연구

권경우,권병철,류봉조,명태식,박찬호,이광원 한밭대학교 산업과학기술연구소 1994 논문집 Vol.2 No.-

The paper describes the development of a new automatic wrapping machine using paper films as it has not been used so far. The most of the automatic wrapping machine have used the vinyl film causing environmental pollution, the paper films, however, have a weak point in the aspect of high temperature adhesion. Therefore, the mechanism of the existing wrapping machine should be altered to prevent it from curling effect through the technical know-how. A new method and technology reducing the curling effect in the automnatic wrapping machine are demonstrated by using developed blower. Thus it is exqection and will decrease environmental pollution.

數種의 腐熟劑 添加가 볏짚의 堆肥化에 미치는 影響

尹奉基,金炳浩,金喜權,朴仁珍 목포대학교 자연자원개발연구소 2000 자연자원연구 Vol.3 No.-

This study was conducted to find out effect of microorganisms added for decomposition of organic matter when manufacturing compost. The microorganisms used were EM, LACTO, SEMIP, BAIMUD circulated in market and 068065 developed in Institute of Agricultural Sciences. Effect of microorganisms inoulation on rice straw was summarized as follows: The number of bacteria, actinomycetes and fungi was 28.7∼76.7(×106), 0∼72.0(×106) and 0∼198.7(×105)cfu/g respectively. The number of bacteria, actinomycetes and fungi between microorganisms was no different. The maximum temperature during composting periods was reached 69∼76℃- at 3 50 5 days after heaping and kept over 65℃ for 7 to 10 days. The number of bacteria, actinomycetes and fungi in compost manufactured with rice straw was 42.8∼206.0(×106), 11.3∼54.7(×106), and 9.8∼42.5(×105)cfu/g respectively. The tendency was similar to control. Degree of decomposition of plot added microorganisms except 068065 and BAIMUD was similar to control at 50 days after heaping. The contents of inorganic elements were 1.26∼1.35% T-N, 1.14∼1.38% P2O5, 0.72∼0.97% K2O, 1.01∼1.74 CaO and 0.63∼1.44% MgO. Contents of T-N, P2O5 , CaO, MgO in compost were increased, but content of K2O was decreased, It was no different between treatments.