• 한국도서관정보학회지
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• 제50권1호
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• pp.251-272
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• 2019

본 연구는 Scopus의 분류시스템에서 설정된 주제분류의 활용도와 상호연관성을 조사했다. 연구 수행의 범위는 2017년도 Scopus 색인에 포함된 저널의 대 주제 분류 및 소 주제분류를 포함하였다. 연구의 결과는 Scopus의 주제 분류별 활용도에서의 빈도수나 주제분류간 상호연관성에서도 다양한 양상을 보였다. 이 가운데 대 주제분류활용률과 상호연관성의 양상은 의학과 사회과학분야에서 가장 활발하고 다양하게 나타났다. 한편, 소 주제분류에서는 "2700 General Medicine"이 상호연관 측면에서 최고의 다양성을 보여주었다. 이외에 쌍을 이루는 소 주제분류 간의 동시 빈도수 분석에서 특징적인 상호연관성을 보이는 경우들을 발견하였는데 같은 분야의 주제어가 비슷한 연관성, 분야는 다르지만 주제가 연결된 연관성, 주제어간 상,하위범주의 연관성의 경우들이다. 소수의 소 주제분류간에는 매우 유사한 주제어를 사용한 경우들도 있었다. 이러한 주제분류별 활용도와 주제분류간의 상호연관성들이 보여주는 다양한 양상들로 인해 연구수행에 있어서 대 주제분류뿐만 아니라 대주제 분류에 많은 영향을 미치는 소 주제분류까지도 면밀하게 살펴볼 필요가 있다.

• 대한견주관절학회:학술대회논문집
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• 대한견주관절학회 2002년도 아시아견관절학술대회
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• pp.177-179
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• 2002

Total elbow prostheses which are now available in clinical use can generally be classified into two major categories ; one bing linked prostheses, another being unlinked prostheses. Of those two categories I am dealing here only with the problems of the unlinked type prosthesis, particularly with those of non-constrained, surface-replacement prostheses. Furthermore, my presentations this time may have to be narrowed down only to the topics regrading the particular features and some of the technical problems with Kudo Elbow Prosthesis, due to the time limit assigned for this presentation.

• 한국동물위생학회지
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• 제21권4호
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• pp.413-429
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• 1998

Escherichia coli is recovered from a wide variety of infections in many animals species. It may be a primary or secondary agent. Nursing and young animals are particularly susceptible, and urinary tract infections are frequent. The various serotypes of E coli are intestinal inhabitants of animals including humans and probably infect most mammals and birds : therefore, they have a cosmopolitan distribution. Colibacillosis refers to any totalized or systemic infection caused entirely or partly by E coli. Collibacillosis in mammals is most often a primary enteric disease, whereas collibacillosis in poultry is typically a secondary located or systemic disease occurring when host defenses have been impaired or overwhelmed. Other opportunistic bacteria, which can be identified by culture, may play a similar role to that of I coli in secondary infections. Collectively, infections caused by E coli are responsible for significant economic losses to the animal performance. From the standpoint of pathogenic mechanisms and diseases, four major categories of E coli are recognized : enterotoxigenic(ETEC), enteropathogenic (EPEC), enteroinvasive(EIEC), and enterohemorrhagic(EHEC). In addition, two less-well-defined E coli categories are recognized in animals and humans : enteroaggregative and cytotoxin necrotizing factor-positive. The aforementioned categories are represented by different serotypes. Certain serotypes show a host preference and are encountered more frequently in some disease syndromes. Of the four major categories, ETEC is the most common cause of diarrhea in calves, lambs, and pigs. Strains in the other categories cause the less-common diarrhea and other disease syndromes. Enterotoxins and pilus antigens are the two most prominent virulence factors thus far identified for ETEC. Two enterotoxins, one heat-stable(ST) and one heat-labile(LT), are produced by enterotoxigenic strains of E coli : not all culture produce both of these plasmid-based enterotoxins.

• 동의생리병리학회지
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• 제17권1호
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• pp.31-36
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• 2003

The causes of disease as well as the mechanisms that result in the presenting signs and symptoms of patients are basic elements in oriental medicine. The location of the disease is the region on which the cause and the nature of the disease acts. Syndrome reflects the cause of the disease and the pathological change and the location of the disease. It is customary to classify the location of the disease into two major categories. First is based on the exterior and interior and the second is based on the five internal organs. Exterior syndrome is caused by the invasion of exopathogen in skin and hair, channels and collaterals. Interior syndrome refers to the syndrome located deeply in the interior of the body such as five internal organs. The location of the disease is very important to distinguish different syndromes in the diagnosis and the treatment of a disease.

• The International Journal of Costume Culture
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• 제2권2호
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• pp.45-59
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• 1999

The objectives of this study were to identify fashion trend in the late 1990's by using content analysis of the design elements of wedding dresses in wedding magazine photographs. The data were selected among the wedding dress photographs in 1997 issues of two wedding's magazines, 'My wedding'and 'She's Bride'. The identified 455 photographs were classified into 15 major-categories of silhouettes, necklines, sleeves, materials, and trimmings, etc. 15 major-categories were consisted of 232 sub-categories. In the late 1990's, fashion trends of wedding dresses have mixed mainly dome silhouettes(56.0%), bell silhouettes, and tubular silhouettes. One-piece forms(90.8%) were familar more than two-piece forms. Necklines were used mainly such as square neckline(14.0%), high necklines(13.0) blended with other off-shoulder necklines, heart-shape necklines, and sweet-heart necklines, etc. Also camisole and strapless were added in neckline. Long-tight sleeves dominated at the late 1990's because that were used most (21.1%) among 22 sleeves sub-categories. And short sleeve, ruffled below-elbow length sleeves, and french sleeves were also used with the other sleeves. Long length in skirts(98.4%) were common but mini length were used rarely. Satin, lace, and solid cloth were the main materials in wedding dresses, however, spandex and velvet were also used. Various trimmings such as flowers(corsages), ribbons blended with embroidery, small flowers, buttons, frills, strings, and fur trimming are used. Especially, flowers used most(11.8%) among 61 trimmings sub-categories. But simplicity was shown in trimmings because there were dresses not having any decorations(14.3%). The wedding dress of the late 1990's has become more varied in design due to the reflection of changes in society and fashion of everyday garments while the traditional design of the wedding dress has been preserved.

• Journal of Electrical Engineering and Technology
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• 제9권5호
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• pp.1482-1488
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• 2014

The reliability evaluation of the electrical distribution networks (EDN) requires sufficient consideration of the effects of planned outages. The planned outages of the EDN can be divided, by outage models and their effects on the reliability into two major categories: by equipment and by feeder. After studying the characteristics of different categories of planned outages, this paper expands the classification of load points by outage time from 4 types to 7 types and defines corresponding reliability parameters for the different types. By using the section algorithm, this paper proposes a reliability evaluation technique of EDN considering equipment random failures and two categories of planned outages. The proposed technique has been applied to the RBTS-BUS6 test system and some practical EDNs in China. The study results demonstrate that the proposed technique is of higher practical value and can be used for evaluating the reliability performance of EDN more efficiently considering the planned outages.

• International Journal of Internet, Broadcasting and Communication
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• 제8권4호
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• pp.63-72
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• 2016

Nominal compounds of 'N1 + N2'in Korean can be classified into the following three major categories: co-compound, sub-compound, and fusion. Among these three major categories, insertion of /t/ in the compounding process and subsequent tensification are found only in sub-compounds. This peculiar phenomenon of /t/-insertion which causes, in turn, tensification in sub-compounds has been long controversial because linguists have not been able to expect in which phonological environment of sub-compounding insertion of /t/ takes place. In this paper, I explore a phonological rule which makes it possible to expect the phonological environments of sub-compounding that allow insertion of /t/ and automatic tensification of the subsequent consonant in the onset of N2. In this process, I show that semantic feature(s) between two combined roots should be considered as one of the important structural descriptions in phonology.

• 한국생활과학회지
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• 제14권3호
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• pp.423-432
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• 2005

This study reviewed the consumption patterns of high-income households and analyzed the ratio of major 6 expenditure categories including food at home, food away from horne, education, clothing, entertainment, and housing expenditure to total expenditure. We employed data from two different years (1997 and 1998) so that we could investigate the influence of the economy depression on the patterns and items ratio of consumption, For this purpose, the Daewoo Panel data were used. Also, data analysis was done with descriptive statistics, t-test, and regression analysis. The regression analyses were used to investigate the determinants of the high-income households' consumption patterns. The results of this study showed that food away from home, among 6 consumption items, seemed to be significantly affected by the depression, but still high-income households seemed not to lessen education expense. We included independent variables such as age, income, job, gender, debts and the likes. It was found that the age of reference person affected the amount of expenses for food, clothing, and entertainment. Other independent variables influenced different consumption categories. The results of this study would be useful for marketing strategies of fashion industries.

• Communications for Statistical Applications and Methods
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• 제16권3호
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• pp.519-528
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• 2009

This paper deals with nonparametric estimation of discontinuous regression curve. Quite number of researches about this topic have been done. These researches are classified into two categories, the indirect approach and direct approach. The major goal of the indirect approach is to obtain good estimates of jump locations, whereas the major goal of the direct approach is to obtain overall good estimate of the regression curve. Thus it seems that two approaches are quite different in nature, so people say that the comparison of two approaches does not make much sense. Therefore, a thorough comparison of them is lacking. However, even though the main issue of the indirect approach is the estimation of jump locations, it is too obvious that we have an estimate of regression curve as the subsidiary result. The point is whether the subsidiary result of the indirect approach is as good as the main result of the direct approach. The performance of two approaches is compared through a simulation study and it turns out that the indirect approach is a very competitive tool for estimating discontinuous regression curve itself.

• 대한환경공학회지
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• 제27권7호
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• pp.704-711
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• 2005

본 연구에서는 국내 전력공급을 양분하는 원자력발전시스템과 화력발전시스템사이에 대하여 LCA를 수행하여 환경영향을 비교 평가하였다. 연구범위로서 두 발전시스템의 건설, 운영, 해체 및 폐기처분단계를 포함하였으며, 환경영향은 Life Cycle Impact Assessment(LCIA) 방법론을 이용하여 단일 환경영향으로 $CO_2$ 배출량을 평가하고, 영향 범주를 확대하여 8대 지구 환경영향 및 방사능 영향을 포함한 환경영향에 대하여 평가를 수행하였다. 평가 결과, 원자력발전시스템이 화력발전시스템보다 $CO_2$ 배출량 평가에서는 10,000배, 8대 환경영향범주에 대한 평가에서는 90배, 방사능을 고려한 환경영향 평가결과에서는 40배의 환경적 우위를 나타내어 환경영향범주 확대와 방사능 포함여부에 따라 원자력발전의 친환경성이 크게 달라짐을 알 수 있었다.