• 한국추진공학회지
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• 제16권4호
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• pp.9-15
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• 2012

본 연구에서는 핀 하중 시험을 통해 탄소섬유/에폭시 복합재의 핀 체결부에 대한 베어링 강도를 조사하고 음향방출법을 적용하여 파괴거동을 조사하였다. 복합재는 필라멘트 와인딩 공법을 적용하여 제작되었으며 적층패턴을 달리한 세 종류의 시편을 적용하였다. Type 1은 스티치가 있는 일방향 섬유시트가 적용된 적층패턴을 가지고 있고, Type 2는 스티치가 제거된 일방향 섬유시트가 적용된 적층패턴을 가지고 있으며, Type 3는 프리프레그가 적용된 적층패턴을 가지고 있다. 연구결과에 따르면 Type 1은 Type 2에 비해 베어링 강도가 3.3% 낮게 나타났으며 Type 3가 가장 높은 베어링 강도를 나타내었다. Type 1과 Type 2는 net-tension 모드 파손이, Type 3는 베어링 모드 파손이 나타났으며 Type 3의 음향방출 에너지는 Type 1과 Type 2의 경우에 비해 높게 나타났다. 이로 미루어 보면 Type 3가 구조적으로 가장 안전함을 알 수 있었다.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2001년도 학술발표대회논문집
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• pp.33-38
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• 2001

The types of the multi-family housing are classified into the independent type, the mixed type and the public type by the approaching method. The characteristics of the independent type are the rear layout type(41.66%), the "ㅋ"type(56.14%), and the 2-room type(54.54%). In the mixed one, they are the front layout type(36.84%), the "ㄱ"type(42.10%), and the 1-room type(49.60%) and in the public one they are the front layout type(51.61%), the "ㅡ"type(41.99%). and the 1-room type(84.11%). It is found that the housing types are gradually tuned into the multi-family housing such as the independent house in the urban area due to changing the major independent type(82.60%) in the early of the 1990s to the public type(74.19%) in the end of the 1990s.

• 한국치위생학회지
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• 제10권6호
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• pp.1025-1035
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• 2010

Objectives : The purpose of this study was to identify correlation of personality preference, and achievement goal orientation, academic self-efficacy, test anxiety in selecting college students who majored in dental hygiene. This study also provides a basic data regarding personality for education of dental hygiene students. Methods : 192 students of S college who majored in dental hygiene were asked to answer the MBTI GS form, academic self-efficacy scale, achievement goal orientation scale and test anxiety scale during the month of May, 2009. The total of 160 copies were analyzed. MANOVA, independent-sample t-test were conducted. Results : 1. Looking at distribution of personality preference type of the students, extroversion type (63.1%) was more than introversion type(36.9%), sensing type(87.5%) was more than intuition type(12.5%), thinking type(54.4%) was more than feeling type(45.6%), judging type(59.4%) was more than perceiving type (40.6%) 2. In subscale of achievement goal orientation, performance approach level was higher in extroversion type than in introversion type. Performance avoidance level was lower in extroversion type than in introversion type. However, other preference personality type didn't show any significant difference in subscale of achievement goal orientation. 3. Academic self-efficacy was higher in extroversion type and thinking type than in introversion type and feeling type. There wasn't any significant difference between judging type and perceiving type, sensing type and intuition type. 4. In subscale of academic self-efficacy, confidence was higher in extroversion type than in introversion type. Task difficulty preference and self-regulated efficacy were higher in thinking type than in feeling type. 5. There wasn't any significant difference between personality preference type and test anxiety. Conclusions : Professor should find out difference between students through using information of preference personality and develop a teaching strategy that can encourage strength and make up weakness of each students.

• 한국실내디자인학회논문집
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• 제15권2호
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• pp.127-137
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• 2006

In the viewing of public performance arts, it needs to make space construction appropriate for performance purposes, because the section type has an effect on audience's inspection. Therefore, this study researches the intentional characteristics and comprehends the relationship between correlation factors to influence on section type of audience space in performance facilities. In addition to, this study comes under fundamental research to propose the course of standard plan, accord with diverse requirement, in the special performance facilities which will be built up. The results as following; 1) The factors that influence the section type of the audience's space in performing facilities are divided as two elements. The first element is construction of space, viewing environment, and the second element is visual characteristic, and acoustic characteristic. 2) The section type are classified as six types, A-type(Flated type), B-type(Sloped type), C-type(Gabled type), D-type(Arched type), E-type(Reverse arched type), and F-type(Reverse sloped type). 3) Characteristics are deduced by the section type, construction of space and viewing environment are restricted by the characteristics of the section type.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 2005년도 춘계학술대회 논문집
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• pp.329-332
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• 2005

Cross rolling process is one of incremental forming processes to form an axi-symmetric shaped metal component. It can be classified into two types according to the shape of dies, which are a drum type (roll type) and a plate type (straight type). It can also be classified into a wedge type and a ramp type processes according to deformation characteristics of a material. The ramp type die is applied to plate type cross rolling process in cold forming process for forming of teeth of gear or bolt, while the wedge type die is generally utilized to drum type and plate type cross rolling processes in hot forming process. A shape of the ramp type die is usually same as final shape of a product at every section of a progressing direction, while the shape of the wedge type die has different shapes in a progressing direction. In this paper, a rolling of neck part in a ball stud component has been carried out using the plate type cross rolling process with a ramp shaped die. Forming characteristics have been performed using finite element analysis in order to obtain a proper preform for the ramp type plate cross rolling process.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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• pp.53-56
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• 2004

Recently the interferometric synthetic aperture radiometer with sub-Y-type antenna array was suggested to improve the spatial resolution than that of conventional Y-type with the same number of antenna elements. The sub-Y-type performance has been reported under a point source target. In this paper, the performance of sub-Y-type is evaluated under contiguous objects. The angular resolution of sub-Y-type with 52 antennas was compared with that of Y-type with the 40 antennas. The images of sub-Y -type and Y-type array were simulated under the contiguous objects. The sub-Y-type showed higher resolution than Y-type in the simulation and experiments. The sub-Y-type has high spatial resolution than Y-type in case of contiguous source as well as single point source.

• 패션비즈니스
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• 제10권5호
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• pp.58-73
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• 2006

The purpose of this study was to improve of fittness and coverage rate of exporting domestic clothing to China for Chinese Adult Female. For study, It was measured 1381 female women aged between 19 and 50 who resident in Beijing and Shanghai in China. as a sample, 1360 female women was seleted for development of apparel sizing system. As for the method of this study was made of 111 items by indirect measures done during Jun. 23 $\sim$ Aug. 7, 2004. Data analysis were processed by SPSS WIN 10.0 Program was used to for technical statistical analysis, correlation analysis, factor analysis, ANOVA(t-test and F-test), duncan's multiple test. The result was as follows: Chinese Adult women's constitutional components determined by factor analysis, six components could be identified: factor 1:constitutional obesty and width size, factor 2: longistudinal body size, factor 3: shoulder form and size, factor 4: longistudinal upper body size, factor 5: under body size, factor 6: shoulder dropping. According to the Women's Wear Specifications(GB/T 1335.2-1997) by drop, body types of Chinese Adult female was classified into six types, it was Y, A, B, C and Z, D. In order, A type as standard somatotype(49.8%), B type(26.9%), Y type (18.8%), C type(2.9%). Y type had the average height and shoulder, bust girth. They were slimmer in overall terms. A type had a normal obesity and body size in height, shoulder, bust girth. They were average Chinese Women. B type had a smaller then A type. They were more obes and thick waist girth. C type had the highest obesity, the widest shoulder and bust girth, and thick waist girth. The characteristics of each body type following the body type structure factor are Y-type for slender type, A-type for standard type, B-type for slightly large type, and C-type for obese type. For each region, the Beijing area had in the order of A-type, Y-type, B-type and C-type, and the Shanghai area had in the order of A-type, B-type, Y-type and C-type.

• 한국의류학회지
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• 제28권8호
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• pp.1175-1185
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• 2004

This study evaluated thermo-physiological and subjective properties of improved disposable coveralls for railroad carriage maintenance through climatic chamber trials and a filed study. Subjects wore five kinds of disposable coveralls (Type A: a disposable coverall on the market, Type B: a coverall with an improved hood and size-adjustable design, Type C: a coverall with a portable hood, Type D: a coverall with small holes for ventilation, Type E: a sleeveless coverall, Type F: a separated type of coverall with half sleeves) The air temperature in the climatic chamber was set in 9$^{\circ}C$ and 30$^{\circ}C$ For each condition, subjects simulated the railroad work for 120min. and rectal temperature, skin temperatures, clothing microclimate and subjective sensations were measured. The results of chamber trials showed rectal temperature and clothing microclimate did not display significant differences by clothing type. In 30$^{\circ}C$ air temperature, mean skin temperature was higher in Type E and Type F than in Type A(p＜0.05) but between the improved coveralls(B-F), we could not find any significant difference. In the case of thermal comfort, the most preferred types were Type B and Type C in 9$^{\circ}C$ and Type F in 30$^{\circ}C$. All subjects felt more comfortable in the improved coveralls than in coveralls of the market (Type A). In field study, workers preferred Type B, Type C and Type F to Type A but the most favorite type differed by the specific type of work. Especially, workers were dissatisfied that Type D tore easily due to lots of small holes around the armpits and Type I did not protect workers＇ shoulder and arms from oil contamination. According to the climatic chamber trials and field study, the most effective coveralls were Type B and Type C for winter and Type F for summer.

• 한국자기학회지
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• 제24권1호
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• pp.1-10
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• 2014

$Co_2Z$-type hexaferrite 시편을 다양한 합성법을 이용하여 제조하였다. 수열합성법을 이용하여 M-type, $Co_2Y$-type, $Co_2Z$-type을 제조하였으며, 제조된 M-type과 $Co_2Y$-type을 출발물질로 하여 고상반응법(ball milling)과 수열합성법(hydrothermal)으로 $Co_2Z$-type을 제조하였다. 제조된 시편의 결정구조와 미세구조 자기적 성질은 XRD, FESEM, VSM, impedance analyzer를 이용하여 조사하였다. M-type과 $Co_2Y$-type은 단일상의 결정구조를 얻을 수 있었다. 여러 합성법 중에 M+Y ball milling, M+Y hydrothermal에서 제조한 시편이 $Co_2Z$-type hexaferrite의 단일상과 대체로 일치하는 것을 알 수 있었으며, $Co_2Z$-type의 모든 시편들은 이론적인 포화 자화값(50 emu/g)과 비슷한 값을 나타내었다. 소결한 시편들의 투자율은 시약을 precusor로 하여 제조한 $Co_2Z$-type의 투자율이 가장 높았으며, 열처리 온도가 증가함에 따라 투자율은 낮아졌다. 다른 합성법에서는 열처리 온도에 따른 변화가 거의 나타나지 않는 것을 확인할 수 있었다.

• Journal of Oral Medicine and Pain
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• 제14권1호
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• pp.133-138
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• 1989

Identification of blood group from the saliva and calculus of the Purpose of individual identification would play a significant role in a practical legal medicine. The author made a study of blood group with saliva and in non-secretor type with dental calculus. The following results were obtained. 1. In the blood typing with saliva obtained from 50 people, secretor type was found 22.4% and non-secretor type was found 27.6%. 2. In Sexual difference, secretor type 70.9%, non-secretor type 29.1% in male and secretor type 73.8%, non-secretor type 26.2% in female were found. 3. In blood group difference, secretor type 80.2% nonsecretor type 19.8% in A blood group, secretor 70.4%, nonsecretor type 29.6% in B blood group, secretor type 66.7% nonsecretor type 33.3% in AB blood group, secretor type 68.2% nonsecretor type 31.8% in O blood group were found. 4. The blood group identification with dental calculus in nonsecretor type proved to be possible. 5. The blood group substance was found in the composition of dental calculus itself regardless of that in saliva.