• Parasites, Hosts and Diseases
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• 제25권1호
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• pp.85-86
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• 1987

In order to know the prevalence of head louse among the school children in rural area, we visited 3 primary schools and a kindergarten in Sanbuk-myon, Mungyong-gun, Kyongsangbuk-do in July 1985, and examined the children to identify the adult worms of head louse and/or its nits on the hair. The overall infestation rate was 91.9% among 420 children examined, and there was a difference between schools (P<0.05). The school girls' rate, 96.1% was higher than that of boys' 88.9%(P<0.05). By grade, the rate of infant school was 88.5% and 1st to 6th grade were 100, 100, 95.8, 90.4, 89.7, 80.0% respectively. Above result indicates that the head louse is an important health problem in this community. Therefore, the chemotherapy and the effort to improve the hygiene are necessary in this community by physicians, teachers and health administrators.

• 신재생에너지
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• 제7권3호
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• pp.83-91
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• 2011

The purpose of this study is to select appropriate location factors for wind power plant, provide detailed classification criteria, and find out appropriate sites for installing wind power plant in Gangwondo. In this study, the following 11 factors were extracted for site selection of wind power plant : wind resource, topography (valley angle, distance to the ridge), forest density, land use, preservation area, national park, Baekdu-Daegan, noise, shade, Transmission Line, and approaching roads. Each factor had relatively different level of importance so that AHP (Analytic Hierarchy Process) technique was used to calculated the weighted value per factor. For overlay analysis, classification criteria were prepared for each factor and each factor was classified into 3 grades : very appropriate, intermediate, poor. According to overlay analysis, the areas which received the highest grade (grade 5) was only in 0.16% of the total area of Gangwondo and had a tendency to exist along the mountain ridge over 600-meter elevation. Through analyzing the yearly average of wind power density, it was proved that the wind power density of areas with grade 4 or 5 had abundant wind resource over $400W/m^2$.

• 대한가정학회지
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• 제45권7호
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• pp.71-91
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• 2007

We investigated the ecological variables of adolescent sexual behavior. We grouped the behaviors into organism, microsystem, mesosystem, and exosystem. The variables belonging to the organism group were sexual attitude, sex, grade, sexual knowledge, sexual education, dating experience, problem behaviors, and self-control. The microsystem variables included the parent-adolescent communication about sexuality, parental monitoring, parent educational background, friend relationships, and school environment. Moreover, the mesosystem variables included family-peer and family-school relationships. The exosystem variables were comprised of neighborhood environment and pornography. The study group included 369 adolescents from the first and second grade of several high school in Daegu, Korea. We found that the factors affecting adolescent sexual behavior included grade, sex, dating experience, self-control, smoking, and pursuing sexual pleasure. As well, contact with deviant friends, father-adolescent communication about sexuality, school type, and attachment to teacher. In addition the family-peer relationship also affected adolescent's sexual behaviors as well as pornography and neighborhood environment. Lastly the variable belonging to the organism group was found to have the greatest effect on adolescent, sexual behavior compared to the other variables.

• 대한치과마취과학회지
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• 제9권2호
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• pp.91-97
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• 2009

Background: Nasotracheal intubation for general anesthesia is preferred for oral and maxillofacial procedures because it provides improved access to the operative site. Fiberopic nasotracheal intubation is a useful technique when airway management seems difficult. But, intaoral bleeding is considered as the important factor that makes fiberopic nasotracheal intubation difficult. The purpose of our study was to elucidate the effect of laryngeal view and bleeding on intubation difficulty during fiberopic intubation. Methods: We studied 461 patients undergoing nasotracheal intubation with permission. Laryngeal view grades were examined with laryngoscope and were recorded. Then, intubation time and the amounts of bleeding were measured during fibroptic nasotracheal intubation under general anesthesia. Results: There was no significant difference between laryngeal view grade and intubation difficulty (P > 0.05). But severity of bleeding increased intubation difficulty (P < 0.05). Conclusions: In this study, the significant amounts of bleeding had an effect on intubation difficulty.

• 청소년시설환경
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• 제16권2호
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• pp.79-91
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• 2018

This study empirically examined the moderated mediation effect of volunteer time in the effect of school maladjustment on juvenile delinquency through depression as negative emotions. For empirical confirmation, 7,052 individuals were collected by stratified multi-stage cluster sampling among 4th to 6th grade elementary school, 1st to 3rd grade junior high school, and 1st to 3rd grade high school students in May 2015. This data was used for analysis. The results of the analysis are as follows. First, school maladjustment directly affects juvenile delinquency and indirectly influences juvenile delinquency through depression. In other words, the higher the school maladjustment, the higher the juvenile delinquency. Also, the higher the school maladjustment, the higher the depression, and the higher the depression, the higher the juvenile delinquency. Second, the volunteer time has a significant effect on juvenile delinquency through interaction with the depression. In other words, it was proved that the moderated mediation effect of volunteer time in the effect of school maladjustment on juvenile delinquency through depression as negative emotions. Based on this, policy implications were examined.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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• pp.91-91
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• 2000

In this paper, the error compensation method of the attitude reference system with low-cost IMU is proposed. In general, the attitude error calculated by gyro grows with time. Therefore the additional information is required to compensate the drift. The attitude angles can be bound by accelerometer mixing algorithm and the heading angle can be aided by GPS velocity information. The Kalman filter is used for error compensation. The result is verified by comparing with the attitude calculated by medium-grade IMU, LP-81.

• 대한원격탐사학회지
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• 제5권2호
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• pp.91-107
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• 1989

The purpose of this study is to investigate ways to use Landsat TM data for geological mapping and minieralized area detection. The study was carried out in Kyongju-Pohang area where toseki and bentonite mines are distributed. Rock samples of 18 granites, andesites, toseki, betonites, sedimentary rocks and altered rocks in the study area were collected for the study. The radiometric measurtment of the rock samples were carried out with a radiometer in the laboratory and in the field. The Landsat TM bands 2,3,4,5,7 were used for the measurement. The radiometric characteristics of the sample were mainly processed by the principal component analysis. It was found that the pricipal component analysis of the radiometric characteristics of geologic materials is very useful for the detection of the alteration of rocks and grade of mineral contents. It is expected that the technique can be used in the future for the efficient exploration of minerals in this country and abroad.

• 한국가금학회지
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• 제36권1호
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• pp.1-7
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• 2009

닭고기의 사육 형태에 따라 유창계사와 무창계사로 구분하고 또한 사육 밀도에 따라 고밀도, 표준, 저밀도 사육구로 구분하여 창의 유무와 사육 밀도가 최종 닭고기의 품질에 어떤 영향을 미치는지를 평가하고자 실시하였다. 유창계사에서는 고밀도 사육 시 닭도체의 $1^+$ 등급 발생율이 고밀도 사육($0.05\;m^2$/수)은 26%, 표준 사육($0.066\;m^2$/수)은 52%, 저밀도사육($0.083\;m^2$/수)은 66%로 저밀도 사육이 고밀도 사육에 비해 2.5배 이상 증가하였다. 가슴육의 PSE 및 품질은 고밀도 사육에서 $1^+$ 등급은 76%를 차지하였으나, 저밀도 사육구에서는 86%로 사육 밀도가 낮을수록 $1^+$ 등급 발생 비율이 증가하였다. PSE 증상은 고밀도 사육구에서 경증, 중증 각각 4%를 나타냈고, 저밀도 사육구에서는 PSE 증상이 전혀 나타나지 않았다. 다리육은 $1^+$ 등급 출현율이 고밀도 사육구에서는 88%, 표준 사육구는 83%, 저밀도 사육구는 91%로 표준 사육구에서 83%로 약간 저하되었으며, 전체적으로 사육 밀도에 따라 큰 차이를 보이지 않았다. 무창계사에서는 $1^+$ 등급 발생율이 고밀도 사육($0.035\;m^2$/수)은 18%, 표준 사육($0.046\;m^2$/수)은 8%, 저밀도 사육($0.058\;m^2$/수)은 46%로 저밀도 사육이 고밀도 사육에 비해 2.6배 이상 증가하였다. 가슴육은 고밀도 사육에서 $1^+$ 등급은 58%를 차지하였으나 저밀도 사육구에서는 72%으로 사육 밀도가 낮을수록 $1^+$ 등급 발생 비율이 증가하였다. 다리육은 $1^+$ 등급 출현율이 고밀도 사육구에서는 88%, 표준 사육구는 83%, 저밀도 사육구는 91%로 표준 사육구에서 83%으로 약간 저하되었으나, 전체적으로 사육 밀도에 따라 큰 차이를 보이지 않았다. 이상의 결과로서 유창계사에서는 고밀도 사육 시 닭고기의 $1^+$ 등급 발생 비율이 현저히 저하될 뿐 아니라 가슴 부위의 딱지 비율이 급격히 증가되었고, 무창계사는 유창계사와 비슷한 경향을 보였고, 환기 및 배수 시설이 불량할 경우는 오히려 유창계사에서 생산된 닭고기 보다 품질이 떨어지는 것을 확인하였다.

• 대한한의학회지
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• 제16권1호통권29호
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• pp.184-197
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• 1995

After 45 patients examined as to the result of medical treatment among the ones who came to Dept. of Pain Clinic, Oriental Medical Hospital, Chunju Woosuk University complaining low back pain chiefly from Dec/19/1994 to Feb/7/1995 for 50 days or so were observed clinically, the results were obtained as follows: 1. In duration of the case history, acute stage(37.8%) was the most predominant, and subacute stage(35.6%) and chronic stage(26.7%) were revealed in turn. 2. In opinions of radiation, Spondylosis(26.7%) was the most predominant, Scoliosis(15.6%) and HIVD(11.1%) were revealed in order, and 3 cases were revealed to be negative. 3. In the radiating pain of the lower limb, the radiating pains of the left lower limb were the most predominant and those of the right lower limb and those of both lower limbs were revealed in turn. By the way, 31.1% of patients didn't suffer from the radiating pain of the lower limb. 4. In the grade of the seriousness of subsective symptom, Grade 2(66.7%) was the most predominant, and Grade 3, Grade 4, and Grade 1 followed it in order. 5. In the period of the treatments of medi-acupuncture, 2-5 day treatments(31.1%) were major and 6-10 day treatments(26.7%), 16-20 day treatments(11.1%), 26-30 day treatments(11.1%), over 31 day treatments(11.1%), 11-15 day treatments(4.4%), and 21-25 day treatments(4.4%) followed it by turns. Thus 2-10 day treatments are 57.8% and under 30 day treatments are 57.8% of all. 6. In the frequency of use of each medi-acupuncture, V was most frequency used in 41 cases(91.1%), and 11 cases of HN(24.4%), 8 cases of MOK(17.8%), 4 cases of OK(8.9%), 2 cases of B(4.4%), and a case of I(2.2%) were revealed in turn. 7. In the effect of treatments, 10 cases(22.2%) were excellent, 25 cases(55.6%) were good, 5 cases(11.1%) were fair, and 5 cases(11.1%) were poor. As the result, 88.9% of all changed for the better and all of these were improved within the third trial. 8. The effect of the treatments per durations was 100% in acute stage, 93.8% in subacute stage, and 66.7% in chronic stage. According to that, it was reavealed that the rate of treatments decreased as it came near to the chronic stage. 9. The effect of treatments per radiating pains was 87.5% in the radiating pains of the left lower limb, 81.8% in those of the right lower limb, 100% in those of both lower limbs, and 92.9% in case that patients have no radiating pains. So in the rate of treatments on radiating pains of the lower limbs, the case of both sides or no radiating pains was higher than that of one side. 10. In the effect of treatments per the condition of patients, Grade 4 showed 100% of improvement, Grade 3 showed 90.9% of improvement, Grade 2 showed 86.7% of improvement, and Grade 1 showed 100% of improvement. 11. In the effect of treatments per contents of treatments, the group treated with medi-acupuncture therapy, herb medication therapy, acupuncture therapy, and physiothrapy at the same time(Group 1) showed 100% of improvement, the group treated with medi-acupuncture therapy, acupuncture therapy, and physiotherapy simultaneously(Group 2) showed 73.7% of improvement, and the group treated with medi-acupuncture therapy and acupuncture therapy at the same time(Group 3) showed 100% of improvement. 12. 2-5 day treatments showed 78.6% of improvement, 6-10 day treatments showed 91.7% of improvement, and over 31 day treatments showed 100% of improvement. As the result, genarally the longer the period of treatment was, the better the effect of treatment was. 13. When only V was used, the rate of treatment was 96.2%. When only HN was used, the rate of treatment was 100%. When only MOK was used, the rate of treatment was 100%. When V and HN were used at the same time, the rate of treatment was 33.3%. When V and MOK were used at the same time, the rate of treatment was 100%. When V and OK were used at the same time, the rate of treatment was 100%. When V, HN, and MOK were used at the same time, the rate of treatment was 100%. When V, OK, and MOK were used at the same time, the rate of treatment was 100%. When V, MOK, and B were used at the same time, the rate of treatment was 100%. When V, HN, OK, and I were used at the same time, the rate of treatment was 100%. When V, HN, and B were used at the same time, the rate of treatment was 100%.

• Clinical and Experimental Pediatrics
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• 제52권8호
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• pp.917-921
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• 2009

목 적 : 신초음파검사는 수신증의 발견을 향상 시켰지만, 수신증의 임상 경과 및 치료에 대해서는 많은 이견이 있다. 이에 저자들은 수신증의 정도에 따른 환아들의 임상적 특징을 연구하였다. 방 법 : 1998년 4월부터 2007년 12월까지 신초음파검사에서 수신증이 발견된 총 367명의 환아들 중에 추적 관찰된 207명을 대상으로 후향적으로 조사하였다. 신우전후직경에 따라 대상을 grade 1-4까지 분류하고, 분석을 위해 이를 다시 mild 군 및 severe 군으로 나누었다. 결 과 : 추적기간 동안 요로감염은 207명 중 91명(44%)의 환아에서 총 128회 발생하였고, 수신증 정도에 따라서는 grade 1이 89명 중 35명(39.3%), grade 2는 88명 중 41명(46.5%), grade 3은 22명 중 11명(50%), grade 4는 8명 중 4명(50%)으로 요로감염의 발생 유무에 대해서는 mild 군과 severe 군 사이에 유의한 차이는 없었다. 그러나 요로감염의 누적 빈도 및 년당 발생한 요로감염의 횟수를 비교 해볼 때 severe 군이 mild 군보다 유의하게 높았다(P=0.041). Mild 군은 175명 중 103명(58%)이 완해를 보여 28명 중 3명(10.7%)의 완해를 보였다(P<0.001). 또한 산전초음파에서 수신증의 발견될 확률은 심한 신우전후직경을 나타낸 환아에서 더 높았다(P<0.001). 결 론 : 저자들은 수신증의 정도가 심할수록 자연완해는 더 적게 일어나며, 요로감염은 더 빈번하게 발생하는 것을 알게 되었다. 따라서 수신증을 가진 환아에 대해 신장 예후를 증진시키기 위하여 예방적 항생제 등의 치료 지침의 확립이 필요하다.