식품의 물성이 저작근의 활성도 및 저작 양태에 미치는 영향

허성주,조리라,김광남 대한 두개하악 장애학회 1997 대한두개하악장애학회지 Vol.9 No.2

To elucidate the effects of food texture such as hardness, cohesiveness, adhesiveness on mastication procedure, the electromyographic activity (EMG) of the masticatory muscles and the chewing movements were analyzed in eighteen young subjects during ordinary chewing. Seven different foods were selected by sensory texture profiling and mechanical test with texturometer; egg white, sausage, pizza cheese, yang-geng, biscuit, peanut and almond. The indexes of jaw movements used were the chewing number, chewing time, maximum opening, average opening, closing velocity and opening velocity. The EMG indexes analyzed were maximum and average integrated amplitude of the anterior temporal and masseter muscles. The results obtained were as follows. 1. The chewing time and chewing number, mandibular displacement and mandibular movement velocity were not changed by the hardness, cohesiveness and adhesiveness of the food (p>0.05). 2. The harder food materials showed a higher amplitude of the anterior temporal muscle integrated EMGs than the softer ones (p<0.05). 3. The maximum and average integrated EMGs of the masseter muscle increased with the increase of hardness of the food (p<0.05). 4. The integrated EMGs of preferred side and non-preferred side masticatory muscles increased with the increase of hardness of the food (p<0.05). 5. The adhesiveness and cohesiveness of the food were not the determining factor to the integrated EMGs of masticatory muscles (p<0.05).

신경회로망을 이용한 호 접수제어기

허정석,양성룡 울산대학교 1993 공학연구논문집 Vol.24 No.1

B-ISDN의 전송 및 교환 기법으로 정착되고 있는 ATM망의 폭주제어를 위하여, 신경회로망을 이용한 호 접수 제어기를 설계한다. 신경회로망을 이용한 호 접수제어는 가입자가 선언한 트래픽 기술인자의 불확실성에 대한 정보를 제어기가 가지고 있기 때문에, 실제 트래픽이 호 설정요구시 협약된 트래픽의 특성과 다소 상이하더라도 견고성(Robustness) 있는 트래픽 제어를 할 수 있는 장점을 가지고 있다. 본 연구에서는 신경회로망 제어기를 보다 효율적으로 학습시킬 수 있도록 두가지 학습 패턴 테이블(호 연결 요청 수락 패턴 테이블과 호 연결 요청 거절 패턴 테이블)을 이용하는 학습 알고리즘을 제안한다. 또한 모의 실험을 통하여, 제안한 신경회로망 호 접수 제어기의 성능을 분석한다. This paper describes a call admission controller by neural network to control the traffic in ATM network for service quality. Because the information of the traffic descriptor declared by users has a characteristic of uncertainty, the design and implementation of efficient controller in the network is very difficult task. The proposed ATM call admission controller by neural network is adaptive and easy to implement. We use two learning table for efficient learning of back-propagation neural network in controller. The performance of the proposed call admission controller is evaluated by simulation, and the results are compared with those of the other control technique.

두개하악장애 환자의 하악운동에 관한 연구

허성주,김광남,장익태 대한 두개하악장애학회 1993 대한두개하악장애학회지 Vol.5 No.2

ABSTRACTThe purpose of this study was to evaluate the mandibular movements of TMD patients comparing to normal persons. Sirognathograph was used to measure five parameters of mandibular movements of twenty normal persons and eight TMDpatients. Five parameters were (1) Maximum opening during maximum opening and closing, (2) Mean velocity during maximum opening and closing, (3) Maximum opening during unilateral chewing, (4) Mean velocity during unilateral chewing, (5) Consistency of mandibular movement during unilateral chewing.Based on above results, new Mandibular Movement Index(M.M.L) was formulated and compared to Helkimo's Clinical Dysfunction Index by measuring two indices before treatment and 2 weeks, 4 weeks, 6 weeks, 8 weeks after treatment.The conclusions were as follows:1. The amounts of maximum opening and mean velocity during maximum opening and closing of TMD patients were less than those of normal persons (p<0.01). 2. The amounts of maximum opening and mean velocity during unilateral chewing of TMD patients were less than those of normal persons (p<0.05) (p<0.01). 3. Although TMD patients showed limited mandibular movements during unilateral chewing, the consistency of mandibular movements was better than that of normal persons (p<0.05). 4. Both mandibular movement index and Helkimo's Clinical Dysfunction Index, were useful in diagnosing TMD patients. The purpose of this study was to evaluate the mandibular movements of TMD patients comparing to normal persons. Sirognathograph was used to measure five parameters of mandibular movements of twenty normal persons and eight TMDpatients. Five parameters were (1) Maximum opening during maximum opening and closing, (2) Mean velocity during maximum opening and closing, (3) Maximum opening during unilateral chewing, (4) Mean velocity during unilateral chewing, (5) Consistency of mandibular movement during unilateral chewing. Based on above results, new Mandibular Movement Index(M.M.L) was formulated and compared to Helkimo's Clinical Dysfunction Index by measuring two indices before treatment and 2 weeks, 4 weeks, 6 weeks, 8 weeks after treatment. The conclusions were as follows: 1. The amounts of maximum opening and mean velocity during maximum opening and closing of TMD patients were less than those of normal persons (p<0.01). 2. The amounts of maximum opening and mean velocity during unilateral chewing of TMD patients were less than those of normal persons (p<0.05) (p<0.01). 3. Although TMD patients showed limited mandibular movements during unilateral chewing, the consistency of mandibular movements was better than that of normal persons (p<0.05). 4. Both mandibular movement index and Helkimo's Clinical Dysfunction Index, were useful in diagnosing TMD patients.

현대불어 전치사 depuis : 의미상 l'aspect se´mantique를 중심으로

허성덕 서울대학교 어학연구소 1998 語學硏究 Vol.34 No.3

This article amis to understand the expressions depuis, a fait … que and il y a … que used in the complex past tense and the present tense more deeply. We review the analysis of Franckel who takes the pragmatic method and that of Callamand who proposes a grammatical suggestion. This article is not to investigate the differences between the two approaches, but to complement them. Through this, we summarize the followings: (1) depuis shows similar distribution in ne pas cesser de construction pointed out Franckel and in progressive verb pointed by Callamand (2) that Je n'ai rien mange´ depuis deux jours by Franckel and On n´y est pas alle´ depuis dix ans by Callamand show the same usage in the semantic point of view (3) the main distribution of depuis is as a postposition, when we see the examples of Callamand except one case.

IMT-2000 중계기용 전력증폭기 설계

허광삼,문성익,김흥수,양두영 濟州大學校 産業技術硏究所 2001 산업기술연구소논문집 Vol.12 No.1

This paper deals with designing the mobile station power amplifier of IMT-2000 using analog predistortion method. The power amplifier made up of 3-stage class-AB amplifiers in cascade. By choosing the final stage as the balanced structure. the output linearity is enhanced. The balanced structure of amplifier is composed of the Wilkinson power divider and combiner. Therefore. to compensate for the linearity of the power amplifier. pre-distorter circuit is inserted in front of 3-stage amplifier. The pre-distorter is implemented using parallel Schotty diode. The optimized linear power amplifier is cornposed of these pre-distorter and 3-stage power amplifier.

[논문]현실요법을 적용한 교육프로그램이 여중생의 학습된 무기력과 자기조절능력에 미치는 효과

허성돈,김정섭,권해수 교육혁신학술위원회 2010 교육혁신연구 Vol.20 No.2

The purpose of this study was to identify the effects of a growth program based on reality therapy on middle school girls' leaned helplessness and self-regulated learning. The subjects for study were 66 students of two classroom. A classroom students were assigned into the experimental group(33 students) and the other class was assigned into the control group(33 students). The students in the experimental group went through 10 sessions of a growth program based on reality therapy and second control group did program of a regular school curriculum. It was carried out 10 sessions in 9 weeks 45-55 minutes lasting 10 sessions. The result of this study follow. First, the experimental group which participated in a growth program based on reality therapy showed significant differences in learned helplessness from that of the control group. Second, the experimental group which participated in a growth program based on reality therapy showed significant differences in self-regulated learning ability from that of the control group. 본 연구는 현실요법을 적용한 성장프로그램이 여중생의 학습된 무기력과 자기조절학습능력에 미치는 영향을 확인하는 것을 그 목적으로 하였다. 2개 학급 66명의 학생을 대상으로 연구하였고 1개 학급 33명은 실험집단으로 다른 1개 학급 33명은 통제집단으로 임의 배정되었다. 실험집단은 10회기에 걸쳐 현실요법을 적용한 성장프로그램에 참여하였고, 통제집단은 정규 교육과정에 맞추어 수업을 받았다. 연구결과는 다음과 같다. 첫째, 현실요법을 적용한 성장프로그램에 참여한 실험집단이 통제집단 보다 학습된 무기력 수준이 감소하였다. 둘째, 현실요법을 적용한 성장프로그램에 참여한 실험집단이 통제집단보다 자기조절학습능력 수준이 증가하였다. 본 연구를 통해 현실요법이 학습무기력 수준이 높은 여중생의 내적 통제력과 자기조절능력을 향상시키는데 효과적임을 확인할 수 있었다. 끝으로 본 연구의 제한점과 향후 연구에 대한 제언을 덧붙였다.

漢語동사 「謂」에 대한 연구

許成道 충남대학교 어학연구소 1983 언어 Vol.4 No.-

치아마모와 하악운동 및 전방유도와의 관계

허성주 대한두개하악장애학회 1995 대한두개하악장애학회지 Vol.7 No.1

The important causes of tooth wear were abrasion, erosion and attrition. Although there were occlusal wear in all persons, the severity of tooth wear were very different from person to person and area to area. The tooth contact patterns during chewing could be related with occlusal wear. There were two types of chewing patterns. One was chopping chewing pattern like carnivorous animal and the other was grinding chewing pattern like hernivorous animal. The purpose of this research was to study the relationship among tooth wear, chewing patterns and incisal guidances. 90 dental student, who had normal mandibular movements, normal chewing function and no occlusal restorations, had recording of chewing movements with Sapon Visitrainer. 12 students of chopping chewing group and 12 students of grinding chewing group were selected. Alginate impression were taken and stone model of each student were made. Ordinal scale was used to evaluate the degree of tooth wear for chopping chewing group and grinding chewing group. Incisal guidances of each student were measured and compared to chewing pattern and tooth wear. t-test was to used to evaluate the differnece of tooth wear between two groups. The correlation between incisal guidance and tooth wear was statisticaly evaluated with SPSS. The conclusions were following ; 1. The anterior teeth showed greater tooth wear than posteriror teeth in both groups.(P<0.01). 2. The chopping chewing group showed less tooth wear in anterior teeth, upper teeth, lower teeth, and all teeth than grinding chewing group. (P<0.05) 3. Incisal guidance of the chopping chewing group were not different from that of the grinding chewing group.(P>0.05) 4. The incisal guidance was not statistically related with tooth wear.(P>0.05)

漢語와 공간 의식

許成道 한국중국어문학회 2000 中國文學 Vol.34 No.-

我洞分析漠字的意義時,不登現無法理解的領域.有時存在一些我洞認籍是反義意義項目的一默存在予一個漠宇之中.再漠語中챠不存在露範園的時態,明中園人在事物時脚不受時態的影響.漠語的表法興韓語不同,韓語往注以"少"表激的念,可語用"大.틴表的念.其次是語以"去"表空間的位移.漂種現象産生的原因何在泥? 上現象其表面現象似李是濁立的成分,但我洞認認些現象興中園人的意識中存在的"空間意識"有開.沈篤論文試園深討上的現象興中園人的"空間意護存在的開系.我潤得出的結論如下. 1)漠字括原義典其原義登生開系的空間意義有着密切的開系.2)有時漠字把在其空間範園約生的各種衝況激自己的意義.3)宇奈的角度有時其意義有不同.存在予原義周空間里的各種因素출影響漠字的意義.4)字有時取其表的原義動作之外的泄態戒結果的意義.動作之外的態戒結果存在子周空間.5)有時漠字中奔不存在施事和愛事,養是漠字把施事和受事看的意義作其漠字的意義.其賓施事和受事着的意義存在予原義空間的周.6)漠字不同的奈角度可獲取不同的感梨,漠字却有時把業種不同的感梨也課之籍其意義.초種感登存在子原義的周空間.7)字原義有時不存在其方向性,業時漠字提添加的方向性意 義課て其意義.種方向性意義也存在子其原義的周空間,8)韓語中的激量和計量在古代漠語和現代語中彼認需是空間意義.タ)在現代漠語中有部表空間移動的旬式.10)古漠語和現代漠語履子無時制語言,業是奈着去和騎H的時間空間移動認識事物的結果.11)表現代漠語態的"フ.着."也可時間空間的移動誤明其理由.

팔당호의 생태학적 수질환경의 변화와 미생물 분포

허성남,민경희,유재근,최순영 숙명여자대학교 자연과학연구소 1999 자연과학논문집 Vol.- No.10

팔당호의 생태학적 환경요인의 계절적인 변화를 분석하므로서 이것으로 인한 식물성 플랑크톤의 연관성을 고찰과 함께 오염과정을 파악하여 수질오염의 예방의 기초자료를 얻고자 본 실험을 수행하였다. 1994년 4월부터 1995년 10월까지 계절별로 3개 지점에서 시료를 채취하여 표층부와 저층부의 수질을 분석하였다 용존산소(DO)와 pH는 각각 7.0-11.6 ㎎/ℓ와 6.9-8.9의 범위이었으며 COD와 BOD농도는 각각 1.6-4.8 ㎎/ℓ와 0.8-2.9 ㎎/ℓ이었으며,SS는 1.8-8.6 ㎎/ℓ의 농도차를 보여 주었다. 또한 NH₃-N와 PO₄-P의 농도는 각각 0.161-0.478 ㎎/ℓ와 0.003-0.073 ㎎/ℓ이었다. 표층의 chlorophyll a의 농도는 낮게는 북한강 유입부위인 12.3 ㎎/ℓ로부터 가장 높은 경안천 유입부위 23.8 ㎎/ℓ의 범위를 보여주고 있다. pH,전도도, COD, BOD, SS ,총인, chlorophyll a의 농도는 하계절에 가장 높았으며 이 결과로 미루어 보아 하계절에는 하천에 오염물질이 가장 많이 유입되는 것으로 추정된다. Station별로 조사한 결과 이들의 농도는 경안천 하류인 St. 3가 남한강 하류인 St. 2이나 댐지역의 St. 4보다 높은 결과를 보여 주었으므로 경안천 상류에서 오염원이 가장 많이 유입되는 것으로 추정된다. 아울러 종속영양세균의 분포도 경안천이 다른 지역보다 가장 높게 나타났다. Seasonal variation of water quality was examined in the reservoir, lake Paldang on Han River, the inlet stations from three rivers, North Han River, South Han liver, Kyung-An stream, and the station of dam area of the lake. Water samples were collected bimonthly from surface and bottom layers at four different stations of the lake Paldang from April 1993 to August 1994. With respect to the seasonal variation, pH, conductivity, and concentrations of COD, BOD, SS, total phosphorus, and chlorophyll a were higher in summer compared with those of autumn or other seasons, while concentrations of DO, NH₃-N, and PO₄-P were increased in winter. Concentrations of COD, BOD, chlorophyll a, total nitrogen and phosphorus were the highest at the station of Kyung-An stream rather than those of other three stations. The average concentrations of chlorophyll a surface water were from 12.3 ㎎/ℓ at North Han River to 23.8 ㎎/ℓ at Kyung-An stream. Heterotrophic bacterial distribution showed higher at the station of Kyung-An steam than those of South Han River and the dam station of the lake.