• 한국방재학회:학술대회논문집
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• 한국방재학회 2007년도 정기총회 및 학술발표대회
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• pp.275-278
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• 2007

필 댐의 내진해석은 간극수압을 고려하지 않을 경우에는 지진에 의한 동수압을 고려할 수 없기 때문에 지진력을 과소평가할 수 있다 그러나 현재까지도 필 댐의 내진해석에서 주요 변수에 따른 동수압의 변화는 연구 실적이 많지 않다. 따라서 본 연구에서는 지진하중과 간극수압을 모두 고려하는 경우에 대해 다양한 변수분석을 수행하여 지진과 간극수압의 상호작용을 알아보았다.

• 한국정보교육학회:학술대회논문집
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• 한국정보교육학회 2007년도 하계학술대회
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• pp.39-44
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• 2007

컴퓨터와 인터넷의 보급은 생활과 의식을 빠른 속도로 변화시키고 있다. 이 중 인터넷은 이용 인구가 증가하면서 인터넷 중독이 사회적 이슈로 등장하게 되었고, 점차 인터넷 이용 연령이 낮아지고 있다. 이러한 우려는 초등학생에게 까지 미치게 되었는데 초등학생의 경우 인터넷 이용률이 다른 연령대에 비해 가장 빠른 속도로 증가하고 있다. 초등학생은 인격형성의 과정에 있기 때문에 최근 인터넷의 부정적 측면에 대한 우려의 목소리가 커지고 있다. 이에 본 연구는 초등학생의 인터넷 중독 실태와 인터넷 중독에 영향을 주는 요인을 알아보기 위해 경남 고성지역 6학년 초등학생을 중심으로 한국정보문화진흥원에서 개발한 인터넷 중독 자가진단 척도(K-척도)를 이용하여 그 실태를 밝히고자 한다.

• 한방안이비인후피부과학회지
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• 제21권2호
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• pp.71-79
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• 2008

Objectives : The relativity of food allergy to infant atopic dermatitis and the effect of dietary treatment were studied. Methods : Many kinds of medical thesis and books about food allergy and infant atopic dermatitis were surveyed. Results and Conclusion : In this study, we found that food allergen is concerned in infant atopic dermatitis. So the proper dietary treatment can not only improve the symptoms of atopic dermatitis but also prevent atopic dermatitis itself, especially to infants, But before taking dietary treatment, patients' balance of growth and development should be considered, Because they are in the growth period.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 제14회 신호처리 합동 학술대회 논문집
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• pp.971-974
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• 2001

Multi-Carrier Spread Spectrum communications has shown the ability of transform domain excision using the wavelet transformation to improve system performance when transmitting signals in the presence of additive white Gaussian noise and interference. In such work, the transforms were implemented using FIR filters and IIR filter. Some well-known classes of sequences, such as Pseudo noise, Walsh, Cold sequences are evaluated with respect to the basic criteria. The main objective is to implement the wavelet transform using IIR filters. This filters are well known to have sharper transition regions leading to better performance. Numerical simulation of multi-carrier spread spectrum communication systems have shown that IIR filters are better in removing the sinusoidal jammer and subsequently yield better BER performance.

• 한국식물병리학회:학술대회논문집
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• 한국식물병리학회 2003년도 정기총회 및 추계학술발표회
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• pp.135.1-135
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• 2003

A technique for detection of Xanthomonas axonopodis pv. citri, a causal bacterium of canker on Unshiu orange fruits, was developed using bacteriophage. Procedure for the detection was designed on the basis of the previous reports that one group(CPI) of X. axonopodis pv. citri bacteriophage and corresponding two Iysotypes distributed in Korea. First, fruit surface was washed with sterile distilled water and pellet was obtained from centrifugation. The pellet was resuspended in Wakimoto's potato semi-synthetic broth medium and divided equally into two parts. One part was heated in boiling water to kill bacterial cells. Bacteriophages(CP$_1$) were respectively added into two parts and 0.1 ml from each part was mixed with soft agar medium. After incubation for 18 hrs at 25$^{\circ}C$, the causal bacterium of canker was determined based on plaques formed on the medium. This procedure can be effectively used for detection of living bacterial pathogen on fruit surfaces of Unshiu orange.

• 한국식물병리학회:학술대회논문집
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• 한국식물병리학회 2003년도 정기총회 및 추계학술발표회
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• pp.121.1-121
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• 2003

Dispersal of Xanthomonas axonopodis pv. citri, causing citrus bacterial canker disease on Unshiu orange was investigated at previously infested plots at Seogwipo in Jeju island of Korea. The bacterial pathogen overwintered in lesions started to multiply at tate May, and disease firstly observed one month after detection of phage from lesions. The disease gradually increased, however, it dispersed non-directionally to nearby plants from inoculum sources. Diseased plants were aggregated to form a cluster throughout the experiment. Population dynamics of phage on symtomless leaf surface and the disease severity were compared in the nursery, Increase of phage population on symptomless leaf surface preceded one month to that of the disease severity Population of phage increased constantly from late July to October, however, the disease severity decreased from late August to late October. It was assumed that the decrease of disease severity might be due to disease-induced defoliation.

• 한국정보교육학회:학술대회논문집
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• 한국정보교육학회 2005년도 하계학술대회
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• pp.367-374
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• 2005

초등학교의 컴퓨터교육에서는 현재 컴퓨터의 활용적 측면을 강조하여 교육하고 있는 실정이다. 하지만, 이제는 지금까지 소홀했던 컴퓨터의 기본 개념과 원리의 이해를 교육해야 한다. 본 연구에서는 학생들이 앞으로 접해야할 컴퓨터교과의 많은 내용 중의 하나인 컴퓨터의 동작원리를 보다 쉽게 접근해서 이해하고 활용한 학습하는 데 주안점을 두고자 한다. 컴퓨터 동작원리를 보다 체계적이고 쉽게 접근하기 위한 역할놀이학습을 수업현장에 적용하여 컴퓨터교과가 실용적인 측면 뿐 만 아니라 근본적인 원리 및 개념 이해의 교육도 필요함을 보이고자 한다.

• 한국정보교육학회:학술대회논문집
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• 한국정보교육학회 2005년도 하계학술대회
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• pp.116-123
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• 2005

현재의 교육에서 창의성은 선택이 아닌 필수 조건이다. 예전의 모범답안 찾기식 교육으로는 복잡한 현대 사회에 적응하기도 어렵거니와 남보다 한 걸음 더 앞서 나갈 수가 없다. 그만큼 창의성 개발이 중요하다고 할 수 있으나, 국내에서 환경을 이용한 실용적인 창의성 개발 프로그램은 많지 않다. 이에 본 연구에서는 창의성 개발 기법 중에서 한 가지 주제에 대하여 여러 관점에서 접근하도록 하는 기법인 여섯 색깔 사고 모자 기법과 그 기법을 활용할 수 있는 대표적인 네 가지 주제에 대하여 웹 상에서 학습할 수 있도록 프로그램을 설계하였다.

• 한국보건간호학회지
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• 제13권2호
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• pp.115-130
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• 1999

This study was conducted to investigate the prevalence of dysmenorrhea in women labor workers The subjects were 327 women labor workers in the area of Kyunggi. Kyungsang and Chunla Provinclils. The data were collected from 20. January to 20. February. 1999 by using self-administered structured questionnaires. The contents of, questionnaire were composed of demographic(3 items). work related(2 items). life style (6 items), obstetric-menstrual(8 items) characteristics. and experiences of dysmenorrhea(6 items). The results were as follows 1. Prevalence rate of dysmenorrhea was $76.8\%$. Among women who had dysmenorrhea. $52.0\%$ of them had family history on dysmenorrhea. $46.0\%$ of them experienced limitation of daily activities. $18.3\%$ of them have started the dysmenorrhea since their employment present company. and $8.8\%$ of them visited hospital due to dysmenorrhea of the subjects who took analgesics for relieving menstrnal pain. $7.2\%$ had no effect. 2. The frequency of dysmenorrhea was significantly different by educational level. working period. and the amount of mentrual flow.

• 환경생물
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• 제23권4호
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• pp.357-361
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• 2005

The exposed strain of C. riparius treated with di (ethyl- hexyl)-phthalate (DEHP) did not result in a consistent relationship between mortality or sex ratio and chemical concentrations. And after treating with DEHP, the emergent female from the exposed strain appeared to be fatty with a large body volume comparing with the non - exposed strain. The emergent period (EP) was especially different between the exposed fourth strain and the non-exposed strain; generally the exposed strain was $7\~10$ days, and non - exposed strain was $17\~24$ days. Regarding sustainable exposed effects, the EP, the first emergent day (FED), and the body volume (BV) could be suggested as suitable bio - markers for detecting of exposure to various EDCs.