• 암석학회지
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• 제16권1호
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• pp.12-26
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• 2007

12개 지역에서 분포하는 108개소의 중생대 화강암류의 석산에서 발달하는 수직의 1번 및 2번 면에 대한 분포 특성을 규명하였다. 각 지역에서 발달하는 수직 결의 방향성은 다양하다. 그러나 전국의 이들 수직 면은 전반적으로 북북동 방향이 우세하다. 수직면의 방향을 종합한 광역 분포도에서 이들 면의 빈도 등급별방향을 살펴보면 (1) $N2{\sim}10^{\circ}E(1st-order),\;(2)\;N15{\sim}25^{\circ}E(2nd-order),\;(3)\;N45{\sim}70^{\circ}E,\;N10{\sim}30^{\circ}W$ 및 $N70{\sim}80^{\circ}W(3rd-order)$ 방향의 3조의 우세 배향을 보여준다. 수평 채석면과 수직 채석면의 상대적인 분리성에 의한 화강암 석산의 유형은 R-유형, G-유형 및 H-유형의 3 종류로 분류되었다. 1번 면이 수평면을 형성하고, 2번 및 3번 면이 수직면을 형성하는 유형(R-유형), 2번 면이 수평면을 형성하고, 1번 및 3번 면이 수직면을 형성하는 유형(G-유형), 3번 면이 수평면을 형성하고, 1번 및 2번 면이 수직면을 형성하는 유형(H-유형) 등이다. 트라이아스기 화강암류의 석산은 R-유형 및 G-유형, 쥬라기 화강암류의 석산은 R-유형, G-유형 및 H-유형 그리고 백악기 화강암류의 석산은 주로 R-유형으로 각각 분류되었다. 이러한 석산 유형 중, 쥬라기 화강암류의 석산에서 가장 다양한 유형이 확인되었다. 유형별 분포비율을 살펴보면, R-유형의 분포비율이 77.8%를 차지하여 22.2%를 차지하는 G-유형 및 H-유형에 비하여 분포비율이 높다. 일반적으로 화강암질암에서는 흔히 물성의 이방성이 확인되며, 할석면의 방향과 열린 미세균열의 방향과는 상호 밀접한 상관성이 있다. 한편 관련 연구사례를 통하여 미세균열의 우세한 방향은 치대 압축 주응력의 방향을 지시함을 알 수 있다.

• 한국과학교육학회지
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• 제44권2호
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• pp.155-166
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• 2024

이 연구에서는 초등 일반 학생과 과학영재 학생의 과학 탐구 학습 지향을 조사하여 비교했다. 또한 이들의 과학 탐구 학습 지향과 불일치 상황에 대한 대처 전략의 관련성도 조사하여 비교했다. 이를 위해 서울특별시에서 초등 일반 학생 61명과 과학영재 학생 53명을 선정한 뒤, 과학 탐구 학습 지향을 조사하는 설문과 불일치 상황에 대한 대처 전략을 조사하는 설문을 실시했다. 또한 일부 일반 학생 및 과학영재 학생을 대상으로 반구조화된 심층 면담을 개별로 실시했다. 연구 결과, 학년과 관계없이 과학 탐구 학습 지향 중에서 초등 일반 학생은 '개념이해' 지향이 가장 많이 나타났으며, '과학적 실천' 지향이 두번째로 많이 나타났다. 반면 초등 과학영재 학생은 '과학적 실천' 지향의 빈도가 가장 높았으며, '개념이해'와 '복합' 지향도 비교적 자주 나타났다. '활동' 지향은 일부 일반 학생에게서만 나타났고, '공학적 실천' 지향은 일부 과학영재 학생에게서만 나타났으며, '과정기능' 지향은 나타나지 않았다. 과학 탐구 학습 지향과 불일치 상황에 대한 대처 전략 사이에 명확한 관련성을 확인하지는 못했다. 그러나 같은 과학 탐구 학습 지향을 가진 경우라도 불일치 상황에 대한 대처 전략을 선택하는 양상은 초등 일반 학생과 과학영재 학생 사이에 약간의 차이가 있음을 발견할 수 있었다. 이에 대한 교육적 시사점을 논의했다.

• 복식문화연구
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• 제14권5호
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• pp.776-789
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• 2006

The purpose of this study was to investigate the relationships between lifestyle types, demographic variables, and clothing consumption orientations of male and female adolescents. The method of this study was a survey research by using questionnaires. Subjects were 393 high school students in Seoul. Four lifestyle types of adolescents were derived by cluster analysis: 'digital orientation type', 'material orientation type', 'positive enterprise type', and 'achievement orientation type'. The material oriented students spent high expense on clothes, had higher preference of imported products, had more sensuous consumption orientations, did more impulsive buying, and were more influenced by advertisements than other types of students. Digital oriented students had mothers with low educational background, low academic records, spent small expense on clothes, and had less sensuous consumption orientation. There were more male students than female students in positive enterprise type and the students of this type had upper middle academic records, had higher sensuous consumption orientation and did less impulsive buying. There were more female students than male students in achievement oriented type and this type had high academic records, had mothers with high educational background, and spent small expense on clothes. They had low level on most of the clothing consumption orientation and were especially less influenced by advertisement. This research confirms that the clothing consumption orientations are associated with the lifestyle of adolescent.

• 한국의상디자인학회지
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• 제15권2호
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• pp.27-41
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• 2013

The purpose of this study is to find out the influences of consumers' shopping orientation and impulse buying orientation on shopping addiction to fashion products in the internet shopping malls. This study surveyed 521 male and female consumers in their 20s~40s in August 2012 who have purchased fashion products through internet shopping malls. For statistical analysis, descriptive statistics, reliability analysis, $x^2$-test, factor analysis, ANOVA analysis, Duncan test, and regression analysis were carried out using SPSS for Windows 12.0. The results are as follows. First, it was identified that there were not significant differences in consumers' demographic characteristics according to the level of internet shopping addiction consumer groups. Second, high level shopping addiction consumers were higher in pleasure/convenience seeking, fashion seeking, and brand seeking shopping orientations and in refreshing, non-plan shopping, recommendation from acquaintances, product stimulus, purchaser stimulus, sales promotion stimulus impulse buying orientations than low level consumers. Third, internet shopping addiction was significantly influenced by the pleasure/convenience, fashion, economic efficiency, brand, sale seeking shopping orientations and refreshing, non-plan shopping, sales promotion stimulus impulse buying orientations. The results of this study will help internet fashion enterprises to handle the consumers with shopping addiction as well as the consumers with high shopping addiction to be able to manage their shopping addiction themselves.

• 한국의류학회지
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• 제20권1호
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• pp.28-42
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• 1996

The purposes of this sturfy were 1) to examine the difference between cognitive and actual age, 2) to understand apparel shopping orientations and the importance of store attributes related to cognitive age and 3) to identify relationship.; between apparel shopping orientations and importance of store attribute, ; in cognitively younger and older groups For the study, questionnaires were administered to 450 elderly women over 55 years of age. The questionnaires were designed to mea, ;ore apparel shopping orientations (hedonic, store loyal and brand conscious, careful and planned, confidented and independent, and economic shopping), importance of store attributes, cognitive age and demographics. Using a base of 204 women, data was analyzed by using descriptive statistics, t-test and correlation coeffictents. The results of this study weve summarized as follows. 1. The older women saw themselves on average 6. 6 years younger than they really were 77.6% of the respondents blieved themselves to be cognitively younger 2 Cognitively younger women were more hedonic and less carefull and planned than cognitively older women in apparel Shopping. 3. Cognitively older women thought that proximity and private dressing rooms in apparel stores were mote important attributes than cognitively younger women. In terms of apparel store attributes, older consumers placed importances on product quality, fit and size, design suited to their age, attractive price, and the availability to return unsatisfactory products, in orders.

• 한국의류학회지
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• 제32권7호
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• pp.1023-1033
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• 2008

The purpose of this study was to segment home-shopper market by using the demographic characteristics. This study enables a better unders landing of home-shoppers and improving the strategy of marketing. The specific objects of this study are as follow: First, it was to exam market segmentations by demographic factors using mixture model. Second, it was to exam shopping orientations of fashion merchandise according to segmentation groups. The data was collected from 637 subjects who had used the home shopping more than one time in a year. The data was analysised through frequencies, factor analysis, ANOVA, Duncan's mutiple range tests with SPSS 12.0 and Mixture model. The results of data are as follows: 1. The result of market segmentation as demographic factor using Mixture model was extracted to 4 market segments called 20's/ unmarried stage, 30's/ children bearing & rearing stage, 40's/ families with children's education stage, 50's/ aging stage. 2. Shopping orientations were extracted to 5 factors called a pleasure oriented, convenience oriented, off-line oriented, human oriented, thrift oriented.

• Tribology and Lubricants
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• 제32권5호
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• pp.147-153
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• 2016

Friction reduction between machine components is important for improving their efficiency and lifespan. In recent years, surface texturing has received considerable attention as a viable means to enhance the efficiency and tribological performance of highly sliding mechanical components such as parallel thrust bearings, mechanical face seals, and piston rings. In this study, we perform lubrication analysis to investigate the effect of dimple shapes and orientations on the lubrication characteristics of a surface textured parallel thrust bearing. Numerical analysis involves solving the continuity and Navier-Stokes equations using a commercial computational fluid dynamics (CFD) code, FLUENT. We use dimples consisting of hemispherical and different semiellipsoidal orientations for simulation. We compare pressure and streamline distributions, load capacity, friction force, and leakage flowrate for different numbers of dimples and orientations. We find that the dimple shapes, orientations, and their numbers starting from an inlet influence the lubrication characteristics. The results show that partial texturing of the bearing inlet region, and the ellipsoidal dimples with the major axis aligned along the lubricant flow direction exhibit the best lubrication characteristics in terms of higher load capacity and lower friction. The results can be used in the design of optimum dimple characteristics for parallel thrust bearings, for which further research is required.

• 대한치과기공학회지
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• 제43권1호
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• pp.13-18
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• 2021

Purpose: This study aimed to compare the flexural properties and perform the Weibull analysis of photo-curing three-dimensional (3D) printing resin. Methods: Photo-curing temporary resin (3D polymer) was used as a printing resin. Specimens (65 × 10 × 3.3 ㎣) were prepared following the ISO 20975-1 guidelines and according to the different printing orientations using a digital light processing 3D printer (D2 120; Dentium). The flexural strength (FS), flexural modulus, and work of fracture (WOF) were measured using a universal testing machine (Instron 3344; Instron) at a crosshead speed of 5 mm/min. Results: In this study, the 0° orientation exhibited higher FS and WOF than the 45° orientation. Significant differences were found among the printing orientations (p<0.05). Specimens printed at the 0° orientation were the most accurate. In the Weibull analysis, 0° showed the greatest Weibull modulus (m), which represents a higher reliability. Conclusion: 3D printing should be selected and used by considering flexural properties, size accuracy, and reliability.

• 한국산업정보학회논문지
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• 제14권5호
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• pp.197-207
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• 2009

개인의 경력적 지향은 욕구와 가치, 그리고 능력으로 구성되는 경력닻(Career Anchor)에 의하여 영향을 받는다. 본 연구는 대구 경북지역에서 IT인력에 의해 보유된 경력닻을 조사함으로써 경력적 지향을 이해하고자 한다. 특히, 성별, 나이, 근무기간, 그리고 직업명과 같은 요인들이 실제로 IT인력의 경력닻에 영향을 미치는지를 알아보고자 하였다. 본 연구는 이러한 목적을 달성하기 위하여 대구 경북지역에 종사하는 269명의 IT인력을 대상으로 설문조사를 실시하였다. 본 연구는 결과는 대구 경북지역 IT종사자들의 경력적 지향을 이해하는데 도움을 줄 것으로 기대된다.

• 한국정보시스템학회:학술대회논문집
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• 한국정보시스템학회 2004년도 추계학술대회
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• pp.201-208
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• 2004

Many organizations experience that the Performance they gained from IT portfolio is lower than they expected values. As with any investment, executives are concerned with maximizing the performance from their investment in IT. This study focused on the relationship or fit between orientations of IT strategy and directions of IT portfolio to maximize IT performance. A field survey of chief information officers of Korea manufacturing sector was conducted in 2003. Complete data of 147 firms was analyzed to determine relationship among the three research constructs that are orientations of IT strategy, directions IT portfolio, and IT performance. In this study, the orientations of IT strategy have two dimensions that are operation orientation and market orientation. The directions of IT portfolio have two dimension that are internal system focused and external system focused. And the IT performance has divided into operational performance and competitive performance. As a result of this study, the companies that are putting a focus with operation orientation were concentrated on internal information systems than external information systems. On the other hand, the other companies that are focused on market orientation were concentrated on external information systems than internal information systems. Consequently, the companies that are focused on operation orientation were operational performance higher than competitive performance and the other companies that are focused on market orientation were competitive performance higher than operational performance. More importantly, the research results provide empirical evidence that supports the hypothesis related to closer fit between IT strategy and IT portfolio does lead to increase operational and competitive performance of IT. And the results emphasize manager's efforts of fit between orientations of IT strategy and directions of IT portfolio to be realized IT performance.