• 대한음성학회:학술대회논문집
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• 대한음성학회 2007년도 한국음성과학회 공동학술대회 발표논문집
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• pp.176-179
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• 2007

This study examined the acoustic characteristics in women diver's Soombijil sound. A total of 18 women divers was attended this study. Acoustic analysis was performed via Praat. Soombijil sound were classified into three types as pitch variations in beginning, middle, and ending part. Type I showed increasing-decreasing-flat. Type II was identified by the shape of flat-flat-increasing. The shape of type III showed increasing-decreasing-increasing. Duration of Soombijil sound was mean 1.48 sec. The range of frequency was 1591.54 ${\sim}$ 4477.13 Hz. FFT analysis showed that frequencies were concentrated 500${\sim}$2000 Hz. Type I and II showed two peaks at 500 Hz and 1500${\sim}$2000 Hz. Type III has one peak below 500 Hz.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2001년도 춘계학술대회 논문집 유기절연재료 전자세라믹 방전플라즈마 연구회
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• pp.140-142
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• 2001

In this study mechanical for stress according to Pin type of high voltage suspension type insulator. R-shaped metal pin. and a tapered metal pin having a tensile pin having a tensile strength of more than the breaking strength of insulating body are provided in porcelain insulating bodies, and a suspension insulator according to the present invention, a test for determining the tensile strength of the insulating body was made and the results. These insulators are designed and produced by using the computer analysis of mechanical and electrical stresses together with the technical know-how accumulated from long year of study into every respect of insulators.

• 복식
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• 제53권3호
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• pp.63-72
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• 2003

The purposes of this study were to classify the upper half of body somatotype and analyze the characteristics of each somatotype. The subjects of survey were 272 elementary school boys of 11 to 12 years old living in Pusan and Kyungsangnam-do. Datas were collected through 36 anthropometric measurements and 7 photographic measurements. They were analyzed by factor analysis, cluster analysis and analysis of variance. The results of the study were as follows : 1. According to the factor analysis. seven factors were extracted from measurements of the upper half of body and those factors comprised 79.62% of total variance. Specially factor 1 was characterized sectional size and factor 2 was characterized longitudinal size comprised 58.83% of total variance. 2. According to the cluster analysis, the upper half of body somatotype was classified four types : Boys in type 1 had quite high stature and big frame, broadest and most sloping shoulders, flattest chest and belly, quite protruded shoulder blades boys in type 2 had quite short stature and small frame, quite broad and most rising shoulder, most protruded belly, quite protruded shoulder blades boys in type 3 had shortest stature, smallest frame, narrowest and quite rising shoulders, most protruded chest, flattest shoulder blade and quite flat belly : boys in type 4 had highest stature, biggest frame, most protruded shoulder blades and quite protruded chest and belly.

• 한국과학교육학회지
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• 제35권2호
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• pp.333-342
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• 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.

• 대한가정학회지
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• 제41권11호
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• pp.21-33
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• 2003

According as the importance of brand value has increased, it's so significant that we analysis brand loyalty and buying-behavior types in the side of various consumption. Also, it will make it for us to presuppose consumer's buying-behaviors in modem society. As an analytical result of consumer's buying-behavior type, they were divided into four type; price value consciousness type, sale orientation type, price-quality schema type, convenience type. As a result of cluster analysis and one-way ANOVA on the three type of consumer's buying-behavior : Price-orientation type, high quality orientation, convience orientation. And it was found that there was relation between buying-behavior types and brand loyalty. Specially, it was high positive relationship between high quality orientation and brand loyalty, convience orientation and brand loyalty.

• International Journal of Aeronautical and Space Sciences
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• 제17권2호
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• pp.167-174
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• 2016

Even though the differential drag type machines of the vertical wind turbines are a bit less efficient than the lift type machines such as Darrieus type machines, they have an advantage of low starting torque. The flapping blade type wind turbine is a specific type of the differential drag machines, and it has no need for orientation as well as quite low starting torque. This work is to develop an innovative 5kW class flapping type vertical wind turbine system which will be applicable to a hybrid power generation system driven by the diesel engine and the wind turbine. The parametric study was carried out to decide an optimum aerodynamic configuration of the wind turbine blade. In order to evaluate the designed blade, the subscale wind tunnel test and the performance test were carried out, and their test results were compared with the analysis results.

• 가정과삶의질연구
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• 제16권1호
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• pp.81-94
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• 1998

The purpose of this study is to examine men's role conflicts of dual-earner family based on man's role type. Man's role type is composed of man's sex role attitude and family-role performance and categorized in four types such as traditionalism type neo-traditionalism type equalitarianism type and inconsistancy type. The test analysis can be summarized as follows; First test analysis can be summarized as follows; role performance and man's role conflict as working hours is long wife's role requirement is high family-role conflict as working hours is long wife's role requirement is high family-role is not commit man's role conflict directly affected. In addition indirect affect through family-role performance shows that man's role conflict level is low as level of income is high level of income difference between man and wife is low child is younger and intent to modern sex-role attitude. Second looking into the difference role conflict to man's role type it shows that equalita ianism type's role conflict is low and man's role conflict in traditionalism and neo-traditonalism types is high.

• 한국IT서비스학회지
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• 제14권4호
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• pp.31-44
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• 2015

Local governments in Korea are involved in three types of online shopping sites : 'direct operation', 'outsourced operation', and 'sales agency.' They are different in terms of the site operator and the charging mechanism among a local government, the site operator, and local producers. This study analyzes their differences in site traffic, local producers' participation, promotion, and partnership. The results from the investigation of 72 shopping sites are the following. First, shopping sites of the 'direct operation' type and the 'outsourced operation' type show significantly higher participation of local producers. Second, the 'marketing agency' type has significantly higher number of promotional activities than the 'oursourced type' which has significantly higher number than the 'direct operation' type. Third, the number of partnerships in the 'marketing agency' type is the highest. The 'direct operation' type is the second and significantly higher than the 'outsourced type.' On the basis of the analysis results, this paper suggests an incubation ecosystem model as a better way of involvement by local governments in online shopping sites.

• 동력기계공학회지
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• 제21권6호
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• pp.5-12
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• 2017

The steady-state, incompressible and three-dimensional numerical analysis was carried out to investigate the internal flow fields characteristics according to wind tunnel contraction type. The turbulence model used in this study is a realizable $k-{\varepsilon}$ modified from the standard $k-{\varepsilon}$ model. As a results, the distribution of the axial mean velocity components along the central axis of the flow model is very similar to the ASME and BE types, and the cubic and cosine types. When the flow passes through the interior space of the analytical models, the flow resistance at the inlet of the plenum chamber is the largest at BS type contraction, but the smallest at cubic type contraction. The boundary layer thickness is the smallest in the cosine type contraction as the axial distance increases. The maximum turbulent kinetic energy in the test section is the smallest in the order of the contraction of cubic type and cosine type. Comprehensively, cubic type contraction is the best choice for wind tunnel performance, and cosine type contraction can be the next best solution.

• 한국전자통신학회논문지
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• 제5권2호
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• pp.125-132
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• 2010

본 연구는 C형 CIP법을 이용한 3차원 시간영역 음장해석법의 정밀도에 대해서 세밀한 검토를 하였다. 3차원 C형 CIP 음장해석의 위상오차 특성과 전파방향에 따른 오차를 명확히 하고, 본 수치 해석법의 유효성을 나타내었다. 또 종래의 수치해석법으로 staggered-grid 모델을 이용한 FDTD법에 따른 계산결과와 M형 CIP법에 의한 계산결과와 비교를 하였다. 본 논문의 검토에 의해 같은 이산화조건에서는 C형 CIP법은 M형 CIP법 및 FDTD법보다 해석법이 가진 분산성이 적고, C형 CIP법으로 계산된 음압 파형은 변형이 적은 결과가 되는 것을 알 수 있었다. 그리고 C-1형 CIP법, C-2형 CIP법, M형 CIP법 및 FDTD법의 메모리와 계산시간을 비교하였다. 그 결과 C형 CIP해석은 FDTD해석에 비하여 수치분산성이 적지만 많은 사용 메모리와 계산시간이 필요하였다. C-1형 과 C-2형 CIP법은 입방체의 격자 대각 방향에서는 축 방향에 비하여 정밀도가 약간 저하하는 것을 알 수 있었다. 그리고 C-2형 CIP법은 C-1형 CIP법보다 사용 메모리와 계산시간이 적고, 계산정밀도도 고려해서 보면 유효한 해석법이라는 것이 명확하였다.