• Title/Summary/Keyword: Life-stress

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A Study on Korean Plastic Characteristics Expressed in Modem Costume - Laying Stress on the Concept of Void, Trait de Korean Painting - (현대 복식에서 표현된 한국적 조형 특성 연구 - 한국 회화의 운필, 여백의 개념을 중심으로 -)

  • Kim, Mi-Gap;Yang, Sook-Hi
    • The Research Journal of the Costume Culture
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    • v.15 no.6
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    • pp.965-981
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    • 2007
  • Since the latter half of 20 century, in Korea, there are many discussions on the identity of Korean itself in several divisions, in which the discussion on the identity in the part of the costume or the part of the art reflecting the life, is the subject which must not fail to be noticed. So, we try to study the common structure manifested in the Korean painting and the costume as a part of basic recognition of problems and the way of problem-solving for the research on the Koran formative characteristics. The method and the process of this study is first, to consider the characteristics of the plastic and style of the Oriental arts and the Occidental arts by discourse implicate the difference between Oriental and Occidental view and the recognition of the body in the two worlds. And in the study we try to apprehend the dynamic modern artistic value of Korean style through assimilation between the Korean style and Baroque style according to the theory of $W\ddot{o}lfflin$ about the classical style and Baroque style. We will describe the Korean identity by analyzing the Korean plasticity with the Occidental style of dress and paintings reflecting the Occidental culture and thought and the Oriental things, and modern paintings and dress in the present age. As a result, we can try to recherche the way of use of new design for the identity of Korean style, in the concept of the ellipsis, repetition of the retrait, obscur silhouette, and superimposition.

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Tribological Characteristics of proposed brake disk for Tilting train (틸팅차량용 제동 디스크의 트라이볼로지 특성 연구)

  • Park Kyung-sik;Kang Sung-woong;Cho Jeong-whan;Lee Hisung
    • Proceedings of the KSR Conference
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    • 2005.05a
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    • pp.491-497
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    • 2005
  • Brake system is indispensible functional part to the transportation machines such as railroad cars, and all of industrial machines. It is mechanical element to stop the movement or slow the speed, transforming kinetic energy of motion object into thermal energy through solid friction. According that recently the railroad cars have become high-speed, the technique in braking domain to secure the overall braking effort is making rapid progress. In particular, material development and manufacturing process are so important to secure friction performance, which is the core in braking performance of mechanical brake units. Wear of brake disk could mainly result in the diminishment of its life span due to thermal cracking, so the endurance against high temperature is required. On the other hand, in this case, the problem is that the side wear of pad, relative material is slightly increased because of enlargement of plastic deformation. It is necessary, therefore, to develop a disk material that will be used in the Tilting System mechanical brake units. The purpose of this paper is to make a study prior to developing brake disk of Tilting Train travelling at 200km/h and to propose the component of brake disk. Accordingly, I will conduct sufficient researches on technical documents of brake disk, that are basic documentations, analyze an impact on components, and further, considering braking degree of train, study for the basic proposal on brake disk's component of the train travelling at 200km/h, which has relatively minor influence of heat stress and maintains the friction. In this respect, I would like to investigate friction characteristics between disk and relative friction material via Test on some possible test segments, analyze and propose friction performance, temperature impact and so forth coming from the contact with pad, relative material to demonstrate the friction characteristics.

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Mechanical Loads of Dropper for High Speed Electric Railway (고속 전차선로 드로퍼에 대한 기계적 하중에 관한 연구)

  • Lee, Gi-Chun;Lee, Tae-Hoon;Lee, Jong-Woo
    • Journal of the Korean Society for Railway
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    • v.14 no.3
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    • pp.222-227
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    • 2011
  • The dropper supports the contact wire and is attached using various types of dropper clips on the catenary. Droppers are subject to mechanical stress from buckling during the passage of pantographs. In order to investigate failure causes for the high speed line dropper, theoretical analyses and experiments have been carried out. In this paper, mathematical formulas are derived for the pre-sag of the dropper static load. The measured values in the experiment were similar to the theoretical predictions. To analyze the cause on fracture of dropper wire, we have conducted analysis such as SEM(Scanning Electron Microscope) of fractured specimens in the field and new specimens. Finally, we performed measurement for the variation of dynamic load on the dropper when a pantograph moved at 300km/h under the Korean high speed overhead line. If such mechanical load occur repeatedly with every passing pantograph, it is possible that the dropper wire will break due to fatigue. This results will be used for special management of high speed catenary system maintenance and life estimation of dropper.

Germinability of Film-Coated Snap Bean Seed as Affected by Oxygen Diffusion Rate under Different Soil Moisture Contents

  • Kim, Seok-Hyeon;Alan G. Taylor
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.49 no.1
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    • pp.46-51
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    • 2004
  • The film coated snap bean (Phaseolus vulgaris) seeds with five different coating materials treated with 3% increase in seed weight were planted at sandy loam soil controlled moisture content of 18, 19, 20 and 21 %. The oxygen diffusion rate (ODR) was calculated from the different moisture content soil. The number of normal seedlings, seedling vigor, and seedling capability in field (seed vigor x dry matter weight) were observed at 9 days after planting and compared to the changes of ODR. The germination rate and ODR were sharply decreased simultaneously in the seeds planted at 21 % soil moisture content. Seedling emergence did not occur at all as the soil moisture content increased above 22 %. Hence this value should be considered as the threshold of soil moisture content for seedling emergence. An ODR value under 20% did not influence the percent emergence significantly. The certain difference observing in the emergence at the same ODR was not related clearly to the condition of soil. So it can be assumed that the limit of soil moisture content for the emergence of snap bean was approximately 20%. The value of 18% soil moisture content may be considered as the optimum for snap bean emergence. There was close relationship between the mean value of ODR in different soil moisture contents and the emergence. The germination rates of the seeds coated with the different materials were quite different when the seeds were planted at 21 % soil moisture. Dry weight of the seedlings from film coated seeds was decreased slightly, but the germination rates were not much different from the non-treated control under relatively higher soil moisture content (21 %). Major factor lowering emergence rate was oxygen stress while film coating act as a minor constraint for snap bean sown in excess soil moisture condition.

The Emergence of $Gar\c{c}onne$ and it's Costume in 1920's (1920년대 가르손느의 출현과 그 복식)

  • Cho Kyu Hwa
    • Journal of the Korean Society of Clothing and Textiles
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    • v.8 no.3
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    • pp.19-30
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    • 1984
  • There is a symbolic term which has realized custom of an era and has eome into fashion since the middle of 1920's. That is Garconne. This paper studied the image and costume of Garconne expressed in literary works, the form of art made it to come into being, and costume of a group of women played a role of pioneers of Garconne. Garconne attempted simple, casual, and mannish costume instead of usual elegance. It was the boiysh style($\`{a}$, la Garconne) which did not stress on the bust and waist like chanel suits used wool jersey by a designer, Chanel ana short skirts of low waist line. They got short haircut and wore low heel shoes. Garconne meant women who were free of convention, were familiar with love a d profession, and lived for themselves in the same manner of young men. They yieled new mode of 1920's. Though their lives were only a period, they manifested the symbol of the period though their figure and designation was not disappeared at the age but was settled as a mark of fixed image. There were several reasons why the Garconne was born. Rapid changes in politics, economics, and society in Europe were occurred from the First World War to 1920 and the trend of custom and art was a turning point. Especially, the entry of women into the society and the mode of Art Deco influenced it directly. The role of a pioneer of Garconne was appeared from the French Revolution. As Merveilleuse, Lionne, and Bloomers wore peculiar clothings ana had life style being irrelevant to tradition, they were talked about. They informed in advance the appearance of new women who were different from romantic ladies and were more modern and active. The pioneer design of Paul Poiret which were over whelming throughout a period and functional design of Chanel were increasingly accelerated.

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Development of efficient protocol for screening of rice genotypes using physiological traits for salt tolerance

  • Kim, Sung-Mi;Reddy, Inja Naga Bheema Lingeswar;Yoon, In Sun;Kim, Beom-Gi;Kwon, Taek-Ryoun
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2017.06a
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    • pp.189-189
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    • 2017
  • Salinity is one of the major abiotic stresses that severely affect crop production throughout the world; especially rice plant which is generally categorized as a typical glycophyte as it cannot grow in the presence of salinity. Phenotypic resistance of salinity is expressed as the ability to survive and grow in a salinity condition. Salinity resistance has, at least implicitly, been treated as a single trait. Physiological studies of rice suggest that a range of characteristics (such as low shoot sodium concentration, compartmentation of salt in older rather than younger leaves, high potassium concentration, high $K^+/Na^+$ ratio, high biomass and plant vigour) would increase the ability of the plant to cope with salinity. Criteria for evaluating and screening salinity tolerance in crop plants vary depending on the level and duration of salt stress and the plant developmental stage. Plant growth responses to salinity vary with plant life cycle; critical stages sensitive to salinity are germination, seedling establishment and flowering. We have established a standard protocol to evaluate large rice germplasms for overall performance based on specific physiological traits for salt tolerance at seedling stage. This protocol will help in identifying germplasms which can perform better in the presence of different salinity treatments based on single trait and also combination of different physiological traits. The salt tolerant germplasm can be taken forward into developing better varieties by conventional breeding and exploring genes for salt tolerance.

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Mechanism of Stress-dependent Structural Change of Yeast Prx (Yeast Prx의 스트레스의존 구조적 변화의 기작)

  • Kang, Ji-Seoun;Cheong, Gang-Won
    • Applied Microscopy
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    • v.35 no.4
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    • pp.16-23
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    • 2005
  • Peroxiredoxins (Prxs) are a superfamily of thiol-specific antioxidant proteins present in all organism and involved in the hydroperoxide detoxification of the cell. To determine the structural organization of yeast-Prx, electron microscopic analysis was performed. The average images of yeast-Prxs revealed three different structure, i.e. spherical-shaped structure, ring-shaped structure and irregularly-shaped small particles. In order to analyze the conformational change of yeast-Prx by reduction and oxidation, Prxs were subjected to DTT and $H_2O_2$. In presence of DTT, yeast-Prx showed a high tendency to form a decamer. However, they changed into dimeric or spherical structure in the oxidized state. Here we also show ionic interaction between dimeric subunits is primarily responsible for yeast-Prx oligomerization.

Survey on Pattern Identification and Treatment of Chronic Fatigue in Korea Medicine (만성피로의 한의임상진료현황에 대한 조사 연구)

  • Kim, Ji Won;Kim, Hyo Jin;Jang, Eun Su;Jung, Hyun Jung;Hwang, Min Woo;Nam, Dong Hyun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.32 no.2
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    • pp.126-133
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    • 2018
  • The aim of this survey is to investigate the current state of pattern identification, treatment and management on chronic fatigue in the Korean medicine. From May 25, 2017 to June 7, we distributed contents of questionnaires to 17,992 Korean medical doctors via e-mail, and then received answers from 329 people. The surveys were conducted by a specialized research organizations. Researchers were blinded to the participant's personally identifiable information or whether they participated in the investigation. In Korea, almost Korean medicine doctors (94.5%) used pattern identification in the treatment of chronic fatigue patients. The main diagnostic methods were visceral (38.5%), qi-blood-fluid-humor (32.3%), and sasang constitutional pattern identification (14.3%). The high-frequent therapy were herbal medicine (37.0%), acupuncture (27.9%), moxibustion (11.7%), and cupping (8.6%). The primary goals of treatment were Improvement and relaxation of stress condition (18.1%), improvement of quality of life (13.1%), increase of functional vitality (34.0%), and fatigue management (23.3%). The key factors affecting treatment outcomes were the patient's aggressiveness in treatment (23.5%) and his/her lifestyle and environment(22.7%). This study was a pioneering research for chronic fatigue on the aspect of medical service provider in the Korean medicine. We hope that this study can be used as a basis for developing a more appropriate and reasonable practice guidelines for chronic fatigue.

Phenomenological Approach to Stress Experiences in Obese Teenagers (비만 청소년의 스트레스 경험에 관한 현상학적 접근)

  • Kim, Lee-Sun
    • Journal of the Korean Society of School Health
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    • v.12 no.2
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    • pp.243-262
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    • 1999
  • Today, obesity is not recognized as a disease itself but is known to be the indirect cause of much chronic illness. Obesity has an impact on psychological disorders including severe inferiority, damage of body self-image, low self-esteem, personality disorders. The results in an increase of the mortality rate. Therefore, this study attempts to discover and evaluate stressful experience in obese teenagers. For this study, 21 girl students and 19 boy students in Pusan middle or high school located were selected. The data were collected from March to May at 1999. A tape-recorder was used under the permission of the subjects to prevent the loss of spoken information and communication. This study consisted of 563 reponses from girls and 461 responses from boys which were then classified with descriptive expressions and priority classifications. The results generated 72 common elements in girls and 54 common elements in boys. From these elements 24 syntheses of hypothetical definitions and 8 identifications of the structural definitions in both girls and boys were developed. The structural and hypothetical definitions were as follows: The analysis of the data was made through a phenomenological analytic method suggested by Van kamm, which is as follows: 1. Maladjustment to school life; lack of understanding of the teacher, insufficient exercise ability, and a feeling of burden in attending the school obesity program. 2. Conflict in family relationships; lack of understanding from the family, a feeling of alienation. 3. Conflict in friend relationships; lack of understanding among friends, constant comparisons in appearance and body with friends (in girls) and estrangement from friends (in boys). 4. Conflict in acquaintance of the opposite sex; hoping to meet the opposite sex, lack of understanding of boy friends (in girls), feelings of pain, feelings of anxiety (in girls) feelings of burden (in girls) feelings of envy (in boys). 5. Negative body image: shape of body; feelings of pain; feelings of powerlessness; feelings of discomfort, and reception; emotional disorders (in boys), and change of personality (in boys). 6. Health disorder: Physical and psychological discomfort. 7. Feelings of burden in weight control; negative experiences in weight control, interference with family and friends, the difficulty in diet therapy, feelings of burden in exercise (in girls), to be teased by the public through mass media (in boys).

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Lifestyle Patterns and Self-Reported Health Perception of Residents in Daegu (건강인식 정도에 따른 대구지역 일부 거주자들의 생활패턴 분석)

  • Kim, Mi-Ok
    • The Korean Journal of Food And Nutrition
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    • v.25 no.1
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    • pp.169-180
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    • 2012
  • This study examines the dietary, exercise, and other daily habits of Daegu residents and how these relate to the residents' perception of their own health status, and comparatively analyzes the lifestyles and daily habits of those who perceive themselves to be healthy and those who do not. This research study used Inbody 230(Body composition analysis, Biospace, Korea) to make body and health measurements such as body composition and obesity index. Also, included in this study was a survey on the lifestyle patterns of the residents. The data from this survey was analyzed with SPSS. The results show that among the residents of Daegu, those who perceive themselves to be healthy have lower body fat and are less obese on average. With respect to dietary habits, those who believe themselves to be healthy have more regular dietary habits such as rarely skipping a meal than those who do not believe themselves to be healthy. In addition those who say they are healthy exercise more frequently and for a longer duration than those who say they are not healthy. As for daily habits, those who report they are healthy show greater satisfaction with life and suffer less from stress than those who report themselves to be unhealthy. This study demonstrates that in order to improve people's health in Korea, good dietary, exercise and daily habits need to be emphasized. Additionally, health education and health awareness programs need to be established in each region. Follow-up studies should be conducted afterwards.