• 한국주거학회:학술대회논문집
• /
• 한국주거학회 1990년도 학술발표대회논문집
• /
• pp.34-44
• /
• 1990

This study aimed to provide a basic data for presenting an appropriate plan of bathroom space which is suitable to our bathing behavior. We analized 1052 of small-sized apartment housing floor plans and the results were as follows. 1. Bathroom space were classified into 5 types : bath unit type, separated type, deficisncy type, over bath unit type, and semiseparated type and there was no separated type in this study. 2. The bathroom space type according to the size of housing 1) Deficiency type was the most popular one in 10-15 pyung sized housing. 2) In the size of 16-20 pyung housing, deficiency and bath unit type were popular ones. 3) Bath unit type was the most generalized one in 21-30 pyung. 4) Bath unit type and over unit type were generally equipped in 31-34 pyung housing. 3. The size of bathroom was ranged from 0.7 pyung to 2.0 pyung, and the ratio of it was 7.5- 12%.

• Journal of Crop Science and Biotechnology
• /
• 제10권1호
• /
• pp.3-7
• /
• 2007

Classification of blast resistance type of 129 Korean rice cultivars was carried out based on reaction pattern to 10 Japanese blast pathogen isolates(Pyricularia oryzae). The cultivars were divided into 11 groups based on the presumed resistance genes as follows; Pia type(19 cultivars), Pita-2 type(4), Pik type(3), Pib type(5), Piz type(11), Pik-s type(8), Pik and Pii type(4), Pia and Pita type(8), Pia and Pik type(6), Pita, Pik and Pii type(4) and no-grouping type(57). These results would provide important information to rice breeding for durable and broad resistance to rice blast.

• 대한가정학회지
• /
• 제26권3호
• /
• pp.153-169
• /
• 1988

This study aimed at investigating the socialization of householdwork to the difference of life style pattern of housewives. For the purpose, questionnaires were administrated to the housewives in Seoul and to analyse of the date, factor analysis F-test, t-test and path analysis were used. The results can be summarized as follows ; 1. By utilizing factor analysis, the life style patterns of housewives were classified into 7 types, they were named, self-improvement type, social activity type, modernistic type, sound and thrifty type, variety-seeking type, passive stability-seeking type, the traditional and conservative type. And the patterns of life style differed significantly according to all of the demographic variables except family type. 2. The level of socialization of householdwork was not reaching the medium, and the mean was 19.45. 3. The socialization of householdwork were influenced indirectly by the age, educational level, income level, family type and social activity type, variety seeking type, traditional and conservative type of the life style pattern. And directly, the age and educational level influenced the socialization of householdwork.

• 한국전기전자재료학회논문지
• /
• 제22권5호
• /
• pp.443-447
• /
• 2009

Bismuth-antimony-telluride based thermoelectric thin film materials were prepared by metal organic vapor phase deposition using trimethylbismuth, triethylantimony and diisopropyltelluride as metal organic sources. A planar type thermoelectric device has been fabricated using p-type $Bi_{0.4}Sb_{1.6}Te_3$ and n-type $Bi_{2}Te_{3}$ thin films. Firstly, the p-type thermoelectric element was patterned after growth of $5{\mu}m$ thickness of $Bi_{0.4}Sb_{1.6}Te_3$ layer. Again n-type $Bi_{2}Te_{3}$ film was grown onto the patterned p-type thermoelectric film and n-type strips are formed by using selective chemical etchant for $Bi_{2}Te_{3}$. The top electrical connector was formed by thermally deposited metal film. The generator consists of 20 pairs of p- and n-type legs. We demonstrate complex structures of different conduction types of thermoelectric element on same substrate by two separate runs of MOCVD with etch-stop layer and selective etchant for n-type thermoelectric material. Device performance was evaluated on a number of thermoelectric devices. To demonstrate power generation, one side of the device was heated by heating block and the voltage output was measured. The highest estimated power of 1.3 ${\mu}m$ is obtained at the temperature difference of 45 K.

• Nuclear Engineering and Technology
• /
• 제55권8호
• /
• pp.3080-3087
• /
• 2023

Thermoelectric (TE) materials working in radioisotope thermoelectric generators are irradiated by neutrons throughout its service; thus, investigating the neutron irradiation stability of TE devices is necessary. Herein, the influence of neutron irradiation with fluences of 4.56 × 10¹⁰ and 1 × 10¹³ n/cm² by pulsed neutron reactor on the electrical and thermal transport properties of n-type Bi₂Te_2.7Se_0.3 and p-type Bi_0.5Sb_1.5Te₃ thermoelectric alloys prepared by cold-pressing and molding is investigated. After neutron irradiation, the properties of thermoelectric materials fluctuate, which is related to the material type and irradiation fluence. Different from p-type thermoelectric materials, neutron irradiation has a positive effect on n-type Bi₂Te_2.7Se_0.3 materials. This result might be due to the increase of carrier mobility and the optimization of electrical conductivity. Afterward, the effects of p-type and n-type TE devices with different treatments on the output performance of TE devices are further discussed. The positive and negative effects caused by irradiation can cancel each other to a certain extent. For TE devices paired with p-type Bi_0.5Sb_1.5Te₃ and n-type Bi₂Te_2.7Se_0.3 thermoelectric legs, the generated power and conversion efficiency are stable after neutron irradiation.

• 한국양식학회지
• /
• 제11권3호
• /
• pp.353-361
• /
• 1998

Zebra danio와 leopard danio의 부모세대(Po)간의 상반교재를 병행한 교배실험에서 5개체의 small spotted type이 출현한 1개의 실험구를 제외하고는 모두 wild type으로 나타났다. 그리고 F하(1)세대 간의 상반교배로 태어난 F하(2)세대는 wild type과 spotted type의 비율이 모두 3 : 1로 나타났다. F하(1)세대와 Po세대와의 상반교배를 병행한 역교배실험에서는 부모세대를 zebra danio로 사용한 경우, wild type과 spotted type이 178 : 1, 2.7 : 1, 3.9 : 1로 출현하는 실험구를 제외하고는 모두 wild type으로 나타났고, spotted type을 사용한 역교배 및 검정교배실험에서 40개체의 small spotted type으로 출현하는 실험구를 제외하고는 모두 1 : 1의 비율을 나타내었다. Z x F(LZ) 교재실험구 중 두 개의 반복구(각각 2.7 : 1, 3.9 : 1 )에서 wild type과 spotted type의 비율이 3 : 1로 나타났으나, F하(1)세대간의 교배실험과 검정교배실험 결과, zebra danio 암컷이 이형접합자(Pp)였다고 추정되었다. Spotted type과 small spotted type으로 나타나는 예외적인 결과에 대해 아직까지 확실히 규명되지 않았지만, 모든 결과를 종합해 볼 때 반문을 조절하는 유전자의 인자형은 zebra danio가 동형 우성 (PP)이고, leopard danio가 동형 열성(pp)이며, 유전자는 상염색체 상에 존재한다는 것을 알 수 있었다. 수정 후부터 15일째까지의 생존율 비교 실험에서 $Z{\times}Z$ (83.8${\pm}$6.7%)와 $L{\times}L$(80.6${\pm}$4.8%)는 생존율에 있어서 그 차이가 통계적으로 유의하지 않았으며, 이들과 다른 교배군인 $Z{\times}L$(73.2${\pm}$2.0%) 이나 $L{\times}Z$(70.6${\pm}$4.2%) 와는 유의차를 보였다. 따라서 D. frankei로 알려졌던 leopard danio는 zebrafish의 aquarium morph인 반문 돌연변이체이지만 leopard danio 사이에 교배가 이루어질 경우에는 유전적으로 안정되어 있음을 알 수 있는 반면에, wild type zebrafish와는 다소의 유전적인 부조화가 존재한다고 추정된다.

• 한국과학교육학회지
• /
• 제35권2호
• /
• pp.333-342
• /
• 2015

과학 탐구 활동은 학습자들 간의 협동학습을 통해 문제를 해결하는 학습 방법이다. 학습자 중심의 상호작용을 전제로 한 과학 탐구 활동을 구조적 차원에서 분석하는 것이 필요하다. 사회네트워크 분석법은 구성원들의 상호작용을 분석하는데 주로 사용되는 방법이다. 본 연구는 5인 1조 31개 조로 구성된 과학영재들을 대상으로 소집단 과학 탐구실험 활동에서 나타난 구성원 간의 상호작용의 양상을 수치적 특성을 바탕으로 유형화하였다. 이 연구의 결과는 다음과 같다. 과학영재들의 상호작용 유형은 모두 여덟 가지로 나타났다. 이 중 가장 많은 상호작용 유형은 전체 31개 조 중 모두 9개 조에서 나타나 29%를 차지한 유형 1로 세 명의 구성원이 상호작용 하는 경우였다. 이들 유형은 다시 한 구성원을 중심으로 나머지 구성원들이 모두 연결 관계를 형성하는 참여형과 중심적 역할을 하는 구성원이 없이 소외된 구성원이 존재하는 소외형으로 구분할 수 있다. 참여형은 유형 4, 유형 6, 유형 7, 유형 8로 모두 9개(29%) 조에서, 소외형은 유형 1, 유형 2, 유형 3, 유형 5로 모두 22개(71%) 조에서 나타났다. 즉, 한 구성원을 중심으로 모든 구성원이 상호작용에 참여하는 형태보다는 중심적 역할을 하는 인물 없이 일부 소외된 구성원이 존재하는 가운데 나머지 구성원들이 상호작용하는 유형이 대부분을 차지하였다. 이 연구를 바탕으로 과학 탐구활동에 적절한 집단의 크기는 무임승차효과나 소외된 학생이 없을 것으로 생각되는 3명이 가장 효과적이라고 할 수 있다. 또한 중심 구성원의 유무에 따라서는 있는 경우가 더 효과적일 것으로 사료된다.

• Parasites, Hosts and Diseases
• /
• 제24권1호
• /
• pp.1-11
• /
• 1986

우리나라 서해지방에서 잡힌 참조기 (Pseudesciaena manchurica)에서 아니사키스유충을 수집하여 형태학적으로 분류하였다. 참조기 30마리에서 총 1,068마리의 아니사키스유충이 검출되어 참조기 1마리당 평균 35.6마리의 유충감염을 보였다. 이들은 형태학적으로 Berland의 Anisakis I형 859마리 (80.4%), Koyama et al.의 Contracaecum A형 13마리(1.2%), 새로운 형인 Contracaecum C'형 55마리 (5.1%), Koyama et al.의 Contracaecum D형 18마리 (1.7%), 새로운 형인 Contracaecum D'형 77마리 (7.2%), Yamaguti의 Contracrfecnm V형 3마리(0.28%), Koyama et al.의 Raphidascaris sp. 1마리 (0.09%) 및 종류불명 42마리(3.9%)로 분류하였다. Contracaecum C'형과 D'형은:이미 ,알려진 종류와는 뚜렷한 차이를 보였으며 문헌상 새로운 형태로 생각되었다.

• 복식문화연구
• /
• 제13권3호
• /
• pp.329-343
• /
• 2005

This study purposed to classify the somatotype of early adolescent girls based on the physical characteristics. For this purpose, a total of 529 girls aged between 10 and 14 were measured and data were collected from 42 anthropometric measurements and 41 photographic measurements per a person. According to the results of classifying somatotype based of the factor analysis, 176 students ($33.3\%$) were type 1, which is short and thin. In students of this type, the breast did not develop, the belly was stuck out as in the body shape of latter childhood, and the contour of the body had not been formed yet. This somatotype was named Type A. Another 176 students ($33.3\%$) were type 2, which is tall and somewhat thin. In students of this type, the breast and the hip developed well, so the contour of the body was quite clear. This somatotype was named Type X. Lastly, 177 students ($33_4\%$) were type 3, which is fattest among the three types. In students of this type, the breast developed but the waist and the hip were not voluminous. This somatotype was named Type H.

• 한국의류학회지
• /
• 제31권11호
• /
• pp.1487-1499
• /
• 2007

In this study, photographs of 600 Korean females aged from 20 to 50years old were indirectly measured in Venus face 2D program. The measurements were analyzed by statistical methods. The purpose of this study was to differentiate the facial types of adult women for the beauty industry. As a result of factor analysis, 6 factors were selected the key factors of facial shape: head height(factor 1), head width(factor 2), side face width(factor 3), head width and circumference(factor 4), face length(factor 5), and side face width(factor 6). We categorized facial type into 5 groups with the previous 6 factor. 5 types were most common facial shapes: Oblong face(type 1), Square face(type 2), Oval face(type 3), Round face(type 4), Triangle face(type 5). The results of facial type analysis were showed that Round face(26.6%), Triangle face(25.3%), Oval face(22.3%), Square face(20.0%), Oblong face(5.7%).