• 제목/요약/키워드: Pre-Form Design

검색결과 166건 처리시간 0.023초

피로균열의 지연거동에 따른 수명예측 및 비파괴평가 (Life Prediction by Retardation Behavior of Fatigue Crack and its Nondestructive Evaluation)

  • 남기우;김선진
    • 한국해양공학회지
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    • 제13권3호통권33호
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    • pp.36-48
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    • 1999
  • Fatigue life and crack retardation behavior after penetration were experimentally examined using surface pre-cracked specimens of aluminium alloy 5083. The Wheeler model retardation parameter was used successfully to predict crack growth behavior after penetration. By using a crack propagation rule, the change in crack shape after penetration can be evaluated quantitatively. Advanced, waveform-based acoustic emission (AE) techniques have been successfully used to evaluate signal characteristics obtained form fatigue crack propagation and penetratin behavior in 6061 aluminum plate with surface crack under fatigue stress. Surface defects in the structural members are apt to be origins of fatigue crack growth, which may cause serious failure of the whole structure. The nondestructive analysis on the crack growth and penetration from these defects may, therefore, be one of the most important subjects on the reliability of the leak before break (LBB) design. The goal of the present study is to determine if different sources of the AE could be identified by characteristics of the waveforms produced from the crack growth and penetration. AE signals detected in four stages were found to have different signal per stage. With analysis of waveform and power spectrum in 6061 aluminum alloys with a surface crack, it is found to be capabilities on real-time monitoring for the crack propagation and penetration behavior of various damages and defects in structural members.

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The Hierarchy of Images according to Construction Factors of the Flared Skirts

  • Lee, Jung-Soon;Han, Gyung-Hee
    • 패션비즈니스
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    • 제13권6호
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    • pp.137-146
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    • 2009
  • This study analyzed hierarchy of image for visual evaluation of flare skirt. This study analyzed expression words about flare skirt with frequency data of image expression words with different length and volume of flare. Stimuli for the study were set to be 4 different volume of flare ($90^{\circ}$, $180^{\circ}$, $270^{\circ}$, $360^{\circ}$) and 3 different length of skirt(48cm, 58cm, 68cm). Stimuli were made by using I-Designer which is Virtual Sewing System. From simulation of flare skirt, the subjects were asked to write down suggested adjective freely and selected 210 adjectives. With this, we chose total 38 adjectives considering frequencies in the pre-study. And we analyzed the combination process of expression words according to construction factor of flare skirt and hierarchy of image from dendrogram which was resulted by hierarchical cluster analysis. 'Feminine' got high score in all 12 flare skirt. When the skirt was short, it was vivid, and as the skirt got longer, ordinary and pure image showed. Also, as the volume of flare got larger, the average of visual effect was higher than visual image. Visual hierarchy construction according to construction factors of flare skirt could be divided into visual image and visual effect, and visual image was shown to be form 'A type - large volume of flare and short skirt length', 'H type-small volume of flare and short skirt length' and 'X type - large volume of flare and long skirt length'.

한국과 중국의 마을비보숲 비교 - 한국(韓國) 진안(鎭安)과 중국(中國) 청주(靑州)를 사례로- (Comparison of Complementary Forest of Village between Korea and China - Focuced on Jinan in Korea and Qingzhou in China -)

  • 박재철;관단단;정경숙
    • 농촌계획
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    • 제18권2호
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    • pp.27-37
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    • 2012
  • The purpose of this study is on comparing complementary forest of village between Korea and China. For this, Jinan of Korea and Qingzhou of China were selected through the pre-survey about the representative region of both country. The main research method was literature study, field study and interview with local residents. The comparative analysis between two regions was performed by frequency analysis of surveyed data. Which shows complementary forest of village in two regions has so much in common and also has many differences which is related with the local practical life. As a result, it was identified that the area and remained number, concentration degree of Jinan were greater than those of Cheongju. But it was identified that the linear form and location were similar in both regions. Through these identification, it is helpful to establish policy direction of both countries about the complementary forest.

신전운동이 루푸스 환자의 우울, 통증 및 피로에 미치는 영향 (Effect of Stretching Exercise on Depression, Pain, and Fatigue in Patients with Systemic Lupus Erythematosus)

  • 안민정;박인혜
    • 근관절건강학회지
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    • 제13권1호
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    • pp.43-52
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    • 2006
  • Objective: The purpose of this study was to determine the effect of stretching exercise on depression, pain, and fatigue in patients with systemic lupus erythematosus(SLE). Methods: The study was designed as a non-equivalent control group pre-posttest quasi-experimental design. The patients with SLE who signed the consent form were conveniently assigned into two groups(11 experimental subjects and 10 control subjects). The subjects in the experimental group were participated in 6 weeks stretching exercise program for one and a half hours per session twice a week. The data were analyzed by using a SAS-pc+ 8.01 program. Results: 'The experimental group would have less depression scores than the control group' was supported (Z=2.2, p=.025). 'The experimental group would have less pain scores than the control group' was supported (Z=3.4, p=.001). 'The experimental group would have less fatigue scores than the control group' was supported (Z=-2.0, p=.041). With this study, we identified the stretching exercise program was effective on depression, pain, and fatigue of SLE patients. Conclusions: From above results, 6 weeks stretching exercise program could be an effective nursing intervention to reduce depression, pain, and fatigue in patients with SLE.

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글램과 펑크의 헤어스타일에 관한 연구 - 1970년대를 중심으로 - (A Study on the Glam and Punk Hairstyle - Focused on The 1970s -)

  • 정희영;정현숙
    • 복식문화연구
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    • 제15권5호
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    • pp.781-795
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    • 2007
  • The purpose of this study is not only to widen and deepen the understanding of external environments of hairstyle but also to provide the basis of understanding and perspicacity as to the hairstyle which will be created under the influence of new music by contemplating distinctions between Glam Fashion and Punk Fashion of 1970s and by comparing and analyzing distinctions between Glam Hairstyle and Punk Hair Style of 1970s. As the method of this study, first of all four common factors, which are resistance, androgynous, beauty of ugliness and pursuit of pleasure through persona, were able to be ed from both Glam Fashion and Punk Fashion of 1970s, and then by using that factors as analyzing instrumental frame, the above two hairstyles were compared and analyzed through photographic materials in this study. According to the results of comparing and analyzing two hairstyles above, in Glam Hairstyle, the androgynous character is the most remarkable distinction. They tried to overturn the gender role by challenging the traditional color and form of hairstyle. In funk Hairstyle, the resistance is the most prominent distinction. They expressed their group identity resisting a pre-existing generation by putting on threatened and aggressive hairstyle.

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음성인식 기능을 탑재한 다기능 휠체어 시스템 설계 및 구현 (wheelchair system design on speech recognition function)

  • 김정훈;류홍석;강재명;강성인;김관형;이상배
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 2002년도 춘계학술대회 및 임시총회
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    • pp.1-5
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    • 2002
  • 본 논문은 수족이 불편한 장애인의 편리성을 위해 휠체어에 음성인식 모듈을 개발하는데 목표로 하고 있다. 본 시스템의 주프로세서는 TMS320C32를 이용하였고, 전처리단계에서 잡음환경의 특성을 고려하여 Winer 필터를 적용해서 잡음을 제거하였고 특징추출과정에서는 LPC&Cepstrum을 이용하여 프레임당 12차의 특징패턴을 추출하였다. 그 후 인식부에서는 기존의 알고리즘 중 고립단어에서 흔히 사용하는 DTW(Dynamic Time Warping)과 오인식률 발생을 방지하기 위해 NN(Neural Network)를 결합한 Hybrid 형태로 구현하였다. 본 연구에서는 DTW와 Hybrid형태를 각각 실험한 결과 잡음환경에서 고립단어 인식률이 평균 96%이상 나타났다.

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ADS-B가 적용된 조종석 디스플레이 기능 구현 (The design and implementation of a cockpit display with ADS-B)

  • 홍교영;김영인;안동만
    • 한국항공운항학회지
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    • 제18권2호
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    • pp.9-15
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    • 2010
  • ADS-B(Automatic Dependent Surveillance-Broadcast) has been recognized as a key component of Surveillance and ATM in CNS/ATM System. In addition to providing surveillance for air traffic control(ATC), ADS-B also supports airborne applications such as enhanced traffic situational awareness through the display of other aircraft to pilots and flight crew. It provides the real-time and same air traffic information to pilots in the aircraft cockpit, air traffic controllers in tower and surface vehicles on the ground at the same time. Aircraft Cockpit Display Unit will display the given information precisely and accurately. This paper describes progress in the development of a Cockpit Display with ADS-B data that enable pilots to acquire, verify and maintain pre-defined spacing intervals from other aircraft for general aviation and small regional aircraft. The designed display provides analogous information in the form of traffic position, range, and ground speed, etc.

간호대학생의 자기이해기반 돌봄증진 프로그램의 효과: 에니어그램 집단교육 적용 (Effects of care promotion program based on nursing students self-understanding: Application of enneagram group education)

  • 신은선;이숙
    • 한국간호교육학회지
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    • 제26권2호
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    • pp.132-145
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    • 2020
  • Purpose: The purpose of this study was to examine the effects of a care promotion program based on nursing students' self-understanding. Methods: A quasi-experimental approach using a randomized clinical trial pre- and posttest design was used. Participants were assigned to an experiment group (n=29) or control group (n=30). Data were collected from June 23 to September 8, 2017. The experiment group participated in a care promotion program based on self-understanding for 24 hours through eight sessions covering eight different topics. The data were analyzed using t-test and repeated-measures ANOVA using SPSS/WIN 21.0. Results: Compared to the control group, the experiment group reported significant positive changes for college life adjustment (F=28.74, p<.001), emotional intelligence (F=15.66, p<.001), and interpersonal caring behavior (F=9.37, p=.003). Conclusion: Findings from this study indicate that care promotion based on a self-understanding improvement program with the application of group enneagram education is a useful intervention strategy to promote the care promotion program based on nursing students' self-understanding. Care promotion based on self-understanding will be utilized as an intervention program to form positive values of care and interpersonal relationship through care awareness, self-change, understanding of others and care experience in the group.

키네시오 테이핑 요법이 지역사회 거주 노인의 통증완화에 미치는 영향 (Effect of Kynesio-Taping Therapy on Pain Among Community-Dwelling Older Adults)

  • 이지아;박달아;지은선
    • 동서간호학연구지
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    • 제14권2호
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    • pp.67-73
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    • 2008
  • Purpose: The purpose of this study was to examine the effect of Kynesio-taping therapy (KTT) on chronic joint pain among community-dwelling older adults. Methods: A pre-experimental design was used. KTT was employed on 23 consenting community older adults visiting a community center. KTT was applied on the painful joint for 3-4 days. Pain was evaluated using the visual analogue scale. Results: Frequent locations of pain were waist (43.8%), knee (28.1%), shoulder (12.4%), and head (9.4%). Time of severe pain during the day was mid-day (47.8%), early morning (21.7%), and evening (13.0%). Pain relief management included hospital visitation (65.2%), medication (17.4%), and application of a poultice (13.0%). Pain scores were significantly decreased after KTT compared to pretest scores acquired prior to taping (p<.001). Conclusions: KTT is a cost-effective, easy-to-use, and effective form of pain relief in older adults with chronic joint pain. Clinical practitioners can consider KTT as a complementary method of chronic pain control in older adults.

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Biofeedback을 이용한 복식호흡 이완훈련이 고혈압 노인의 혈압과 스트레스반응에 미치는 영향 (The Effects of Abdominal Relaxed Breathing Exercises using Biofeedback on Stress Response and Blood Pressure in Elderly People with Hypertension)

  • 유수정;김금순
    • 기본간호학회지
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    • 제10권1호
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    • pp.14-22
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    • 2003
  • Purpose: To improve self-management in elderly people with hypertension, the researcher examined the effects of an abdominal relaxed breathing exercises using biofeedback on blood pressure. These exercises regulate physical response to stress and lessen the activity of sympathetic nerves. Method: A single-experimental pre-and post-test design was used. Eight elderly people with hypertension participated in the study from April, 6 to June, 14, 2000. Biofeedback was done with soft ware by developed by J & J Company (1-410 form for abdominal respiration training). The abdominal relaxed breathing exercises are based on Mason's suggestion (1985) and were modified by Yu & Song(2001). This program consisted of 4 sessions once a week for four weeks. Data were analysed using SPSSPC+(10.0). Result: There was a significant decrease in systolic and diastolic blood pressure over three different times. There was a significant difference in the level of total stress response, overall health and quality of life but no significant difference in the level of emotional condition over three different times. Conclusion: The results of this study will contribute to the development of nursing strategies for the regulation of blood pressure in older people as the exercises are easy to learn and are a nonpharmacologic approach.

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