소유역에 대한 제 유출해석 모형의 비교에 관한 연구

강주복,정연태,강인식,김태희 부산대학교 1995 生産技術硏究所論文集 Vol.48 No.-

It is difficult to make an exact estimate of the peak discharge, the runoff depth of flood, and establish the proper measurement for the flood protection since the water stage or discharge has been rarely measured at medium or small river basin in Korea. Therefore, Runoff analyses were perfomed using the storage function method, the discrete, linear, input-output model and linear reservoir model, respectively. Various parameters for the study areas were determined. The calculated hydrographs by three methods showed good agreement with observed flood hydrographs. The capabilities of regenerating flood hydrographs were evaluated based on rainfall from the storage function parameters, the Ø-index method, and the constant percentage method. The storage function parameters provided better effective rainfall for regenerating flood hydrographs than any others considered in the study. 우리나라의 중소하천 유역 중 대부분은 수위나 유량 관측을 행하지 않은 미계측 유역으로 방치되어 있는 상태이므로, 홍수시 정확한 유출량의 추정, 홍수피해 경감을 위한 적절한 대책 수립 및 수공구조물의 건설에 필요한 계획홍수량의 산정 등이 극히 어려운 실정이다. 따라서 본 연구에서는 수영강유역을 대상으로 기존의 유출해석 모형 중 저류함수법, 선형 이산화 입력-출력 모형 및 선형저수지 모형을 채택하여 유출해석을 실시하고, 대상유역에 대한 각종 매개변수를 산정한다. 유출결과로부터 세가지 방법에 의한 계산수문곡선은 실측수문곡선과 잘 일치하였다. 또한 저류함수법 매개변수를 이용한 방법과 Ø-index법 및 일정비손실법 등의 유효강우량 산정방법에 따라 수문곡선의 재현능력을 평가하였다. 본 연구에서는 저류함수법 매개변수를 이용한 방법이 가장 양호한 재현결과를 나타내었다.

남자대학생의 흡연태도와 행동에 관한 연구

강경진,김정미,민혜영,안소진,오경숙,은경희,이현,이희선,홍주미,김수지 이화여자대학교 간호과학대학 2003 이화간호학회지 Vol.- No.37

There have been so many researches about problems of cigarettes and relation of smoking and heath since 1950's and generally known that smoking is one of the worst factor of increasing disease and mortality. No matter what such many proofs about various problems of smoking have been researched, smoking rate of current male collage students has not been decreased. Besides, most of the researches about cigarette use and its addiction have been focused on the adolescent or adult women smokers or adult male, not male collage student. Therefore, the subject of this study is about smoking attitude and smoking behavior of male collage students by general features. Smoking attitude was analyzed by modifying 'Guidelines for the content of tobacco smoking surveys of the general population'(WHO, 1982). Two hundred of male collage students participated to the distributed questionnaire for one week in May. The smoking attitude was categorized into duration of smoking and number of cigarette per day(CPD), and nicotine dependency, investigated by Fagerstrom Tolerance Questionnaire(FTQ) (Fagerstorm & Schneider, 1989). All statistics were performed by procedure of SAS according to number, percentage, mean, standard deviation, and ANOVA. The results are as follows: 1. Smoking attitude level was mean 25.73±5.15 marks, ranging from 13 to 39 marks of the total 40 marks. 2. Duration of cigarettes, number of cigarette per day, and nicotine dependency were mean 5.14±2.84 years, 12.88±6.85 pieces, and 4.78±1.69, respectively. 3. Smoking attitude showed significance according to general features such as marital state and allowance, but the significance according to marital state is not valuable because the numerical difference is so big between married one and single that they cannot be compared with each other. 4. Duration of smoking was significant according to general features such as age and allowance. 5. Smoking amount showed significance the factors of age only. 6. ll1ere was no significance in nicotine dependency according to general features. As a result, smoking attitude of male collage student in this study shows moderate level. Smoking attitude and duration is significant according to allowance, and smoking amount is significant according to age. Nicotine dependency according to general features is not significant but comparing with the preceding study about adult male, male collage students in this study are respectively more nicotine-dependent than adult male smokers. In conclusion, the right allowance usage strategies and effective heath education focused on the young are needed. In addition, helpful programs and information spreading strategies are necessary for establishing higher level of smoking attitude. At last, systemic regulations in daily living for ""anti-nico-dependent"" and perspective reforming of male university student are needed for reducing nicotine dependency.

패션산업의 신속대응(Quick Response)시스템 도입현황 및 도입사례에 관한 연구

강희정,고은주 창원대학교 생활과학연구소 1997 생활과학연구 Vol.- No.1

Environmental changes (e.g., threat of imports, rivalry among existing competitiors) have increased the difficulties in operating an apparel business. To manage the environmental changes, Quick Response System (QRS) has been proposed. QRS is defined as a business strategy to speed up the information and product between business partners for maximizing consumer satisfaction by information technologies(e.g., EDI, Bar code) and partnership (Ko, 96, VICS, 1989). The purpose of this study are to review the current development of QRS(i.e., background, concepts, benefits, adoption problems), to analyze two cases (in Japan and Korean), and to suggest the future directions for the new adopters of QRS. The information from this study can be used when apparel companies do strategic planning and evaluate the adoption of QRS. Informed decision are critical when companies do make a decision for the best choice.

재발성 일과성 허혈 발작을 주소로 내원한 비-안와-대뇌 모균증 1예

강우열,이주헌,성영희,최일수,송홍기,이병철 대한노인병학회 2002 대한노인병학회지 Vol.6 No.3

Berberine의 항생제 내성 확색포도구균에 대한 항미생물 효과

김강주,차정단,김해경,유현희,유용욱,이동근 대한악안면성형재건외과학회 2002 Maxillofacial Plastic Reconstructive Surgery Vol.24 No.2

Antibiotic-resistant Staphylococcus aureus (S. aureus) emerged in many parts of the world and increased complex clinical problems. Therefore, new agents are needed to treat the antibiotic-resistant S. aureus. Some natural products are candidates of new antibiotic substances. Previous reports showed that the extract of Coptidis Rhizoma and Phellodendri Cortex have antimicrobial effects. The main antibacterial substance of Coptidis Rhizoma and Phellodendri Cortex is berberine. In this study, we examined the antimicrobial activity of berberine to antibiotic-resistant S. aureus. We isolated the 13 strains of antibiotic-resistant S. aureus from the oral cavity of healthy children in a preschool, and investigated the antimicrobial activity of berberine. We examined the effects of berberine on the level of resistance to antibiotic-resistant S. aureus. We observed that the invasion of S. aureus into human gingival fibroblasts was blocked by berberine. Berberine inhibited the growth of antibiotic-resistant S. aureus as a dosw dependent maner. Minimum inhibitory concentration (MIC) of berberine against antibiotic-resistant S. aureus was 50∼100㎍/㎖. The inhibition of S. aureus invasion was depended on the concentration of berberine in human gingival fibroblasts. The MIC of ampicillin against antibiotic-resistant S. aureus was 32㎍/㎖. However, the MIC of ampicillin against antibiotic-resistant S. aureus in the presence of 50㎍/㎖ berberine was 1㎍/㎖. These data indicate that the combination with berberine and β-lactam antibiotics resulted in the synergistic reaction. These results suggest that the berberine may have the antimicrobial activities to antibiotic-resistnat S. aureus, and the mechanism may be the inhibition of growth and intracellular invasion, and alteration of antibiotic-resistance level of antibiotic-resistant S. aureus.

전자코를 이용한 마늘냄새의 감소 효과 분석

손주아,임채란,손희진,강진희,노봉수 서울여자대학교 자연과학연구소 2007 자연과학연구논문집 Vol.19 No.-

Ths effectiveness of reduction of garlic flavor in model solution was investigated using metal oxide sensor of electronic nose. After removing garlic sample (control) it was washed by milk or casein solution. The obtained data from electronic nose were analyzed by principal component analysis. Control Sample was separated from the treatment that was washed with 1, 3, 5% casein solution by first principal component score. There is no difference between 1% casein treatment and 3% casein one. Five percent casein solution was effectively differentiated from control. It means that casein (5%) might be bound with garlic flavor. One percent green tea was effective but it was done by washing rather than binding.

청소년의 애착유형과 상담관계에 대한 기대와의 관계

박주신,강문희 서울여자대학교 특수치료전문대학원 2006 심리치료: 다학제적 접근 Vol.6 No.2

본 연구는 청소년의 애착유형과 상담관계에 대한 기대 간의 관계 연구로서 애착유형과 성별에 따라 상담관계에 대한 반응에 어떠한 차이가 있는지를 분석하여 상담 장면 에서 서로 다른 애착 유형을 가진 남, 여 청소년 내담자들에게 다른 전략적 개입을 할 수 있는 상담의 준비 작업으로서의 유용한 기본 자료를 제시하는 것에 그 목적이 있다 본 연구에서 사용한 척도는 Bartholomew의 4척도 (안정형,몰입형,무시형,두려움형)로 구성된 애착관계 질문지 를 사용하여 애착유형을 분류하였으며 상담관계 형용사 질문지를 이용하여 요인 분석 후 추출된 5개 요인으로(합리적인,권위적인,지지적인,혼돈스러운,'민감한) 연구를 진행하였다. 연구의 결과는 다음과 같다 첫째,네 가지 애착유형에 따라서 상담관계에 대한 기대 요인(합리적인,권위적인,지지적인,혼돈스러운,민감한)이 ‘민감한’을 제외한 4개의 상담관계기대에서 각각 차이가 나타났다. 둘째,성별에 따라 ‘합리적인’과 ‘혼돈스러운’ 두 상담관계에 대한 기대에서 유의한 차이를 보였는데 긍정적 요인인 ‘합리적인’은 여성이 남성보다 높은 기대를 하고 있었으며 부정적 요인인 ‘혼돈스러운’은 반대로 남성이 여성보다 높은 기대를 하는 것 으로 나타났다. 셋째,애착유형과 성별에 따라 상담관계에 대한 기대의 차이를 살펴본 결과 애착유형 중,두려움형과 무시형의 남성 내담자들이 상담을 ‘권위적’이고 ‘혼돈스러운’ 것으로 높게 기대한다는 결과를 도출했다. The present research concerns expectations of counseling relationships,which vary depending on sex and attachment patterns of the clients,and is designed to analyze how clients' reactions differ matching the relationships formed. Relationship Questionnaires(RQ) and questionnaires of adjectives were administered to 800 high school students for the present study. After One-way ANOVA to measure the differences of expectations among the categorized attachment pattern groups,Scheffe’s post hoc test, and Independent specimen T -test were utilized for data analysis. Two-way ANOVA also applied to observe the interactions between sex and the attachment types. The results of this study are as follows : 1. All the factors of expectations, except for ‘sensitive’, from counseling relationships differed in accordance with 4 attachment patterns. 2. According to sex,there have been shown meaningful differences between the factors of ‘rational’ positive,with the higher expectation rate from women than men, and ‘confused’ negative, and otherwise. 3. Male clients, who personally visited and participated in our research, having been grouped into the types of ‘fearful’ and ‘dismissing’,were founded,from their different expectations of counseling relationships depending on their sex and attachment patterns,that they expected the counsel to be much confused.

알루미나-유리 복합체의 제조에 이용되는 유리의 조성에서 ZrO₂의 함량변화가 복합체의 기계적 성질에 미치는 영향

이주형,강동진,원대희,이민호,배태성 大韓齒科器材學會 2000 대한치과재료학회지 Vol.27 No.3

This study was performed to investigate the effect of ZrO2 addition in borosilicate glasses on the mechanical properties of alumina-glass composites. Porous alumina compacts were prepared by slip casing and sintered at 1100℃ for 2 hours. Dense composites were made by infiltration of molten glass into partially sintered alumina at 1200℃ for 6 hours. Specimens were polished sequentially from #800 to #2000 diamond disk, and the final surface finishing on the tensile side was received an additional polishing sequence through 0.3㎛ diamond paste. Biaxial flexure test was conducted by using ball-on-three-ball method at a crosshead speed of 0.5 mm/min. Fracture toughness was measured by a single edge V-notched beam (SEVNB) method with 2.5×5×20 mm rectangular bar. To examine the microstructural aspect of crack propagation in the alumina-glass composites, Vickers-produced indentation crack was made on the tensile surface at a load of 49.0 N and dwell time of 15 sec, and the radial crack patterns were examined by an optical microscope and a scanning electron microscope. The results obtained were summarized as follows: 1. The minimum biaxial flexure strength was obtained with an addition of 2 mol% ZrO₂ in glass composition and strength values increased with the increase of ZrO₂ content. 2. The minimum fracture toughness was obtained with an addition of 2 mol% ZrO₂ in glass composition and toughness values decreased with the increase of ZrO₂ content. 3. Fracture surfaces indicated the frictional interlocking of rough surfaces left behind the fracture front.

대전광역 시민의 골다공증 검진에 관한 고찰

유은주,이관우,박현모,이수배,김광현,강희구,박성오 한국건강관리협회 1999 건협 Report Vol.2 No.-

스타이렌 아이오노머의 기계적인 성질에 미치는 혼합 양이온의 영향

김희석,나연화,이용혁,이법원,유지강,박기주,김준섭 조선대학교 생산기술연구소 1998 生産技術硏究 Vol.20 No.1

The styrene-co-methacrylate ionomers neutralized with Na +, Ba2 +, and mixed cation of both were prepared. The dynamic mechanical properties of two cation-containing ionomers were measured and compared to those of the ionomers neutralized with only one type of cations. We found that in the ionomers with one type of cations the difference in the type of cation does not change the glass transition temperatures. It was found, however, that the cluster Tg of the mixed cation ionomer is lower than that of the single cation ionomers. Thus it was postulated that in the two-cation system the two cations in a solution have sufficient dynamics to form new type of multiplet containing both cations, which may be slightly bigger than that found in the single cation multiplet. The mechanical properties also imply that the strength of ion interactions in the multiplets of the two cation ionomer is thought to be weaker than that of the one cation ionomers. These two effects are believed to contribute the lower in the cluster glass transition of mixed cation system.