• Title/Summary/Keyword: Physical Character

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A Development of Computer Program for High School Physics I (고등학교 물리I의 개별학습을 위한 컴퓨터 프로그램의 개발)

  • Kim, Chang-Sik
    • Journal of The Korean Association For Science Education
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    • v.6 no.2
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    • pp.1-7
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    • 1986
  • The summary of the distinguishing features of the program(developed In this research) 1. For the high school physics 1, total of 67 kinds of physical concepts. 31 of physical low. 84 of equations. 23 of units, and 191 of new sample problems were imputed (in the data file) 2. Physical concepts, lows, equations, and units could be studied by chapter 3. Among 191 of sample problems, the user can choose his own set of problems according to chapters and difficulties. 4. The content, a set of problems chosen, and a result for test will be printed for a hard copy. 5. An extra effect was done to use same character for physical quantities as in a text book.

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Studies on the Physical Properties and Application of EPDM-Polymer Blends. Part 4. Physical Properties for EPDM-NBR Blends (EPDM과 각종(各種)Polymer의 Blend에 의(依)한 성능변화(性能變化) 및 그 응용(應用)에 관(關)한 연구(硏究)(제4보(第4報)) EPDM과 Acrylonitrile-Butadiene Rubber의 Blend에 대(對)하여)

  • Kim, Joon-Soo
    • Elastomers and Composites
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    • v.7 no.1
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    • pp.45-52
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    • 1972
  • As a series of the studies of EPDM-Polymer blends, the experiments are concentracted to the investigation of the physical properties of the EPDM-NBR blends. The results are shown as follows; 1. As EPDM addition ratio is increased, the physical properties such as resistance to ozone and aging have also improved, on the other hand, elongation and abrasion resistance decreased. 2. Tear strength is less influenced by blending and character after aging exhibited the same result. 3. Tensile strength decreased with increase in EPDM contents, especially the ratio of EPDM/NBR are 50/50 and 75/25.

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Environmentally Assisted Cracking of Alloys at Temperatures near and above the Critical Temperature of Water

  • Watanabe, Yutaka
    • Corrosion Science and Technology
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    • v.7 no.4
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    • pp.237-242
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    • 2008
  • Physical properties of water, such as dielectric constant and ionic product, significantly vary with the density of water. In the supercritical conditions, since density of water widely varies with pressure, pressure has a strong influence on physical properties of water. Dielectric constant represents a character of water as a solvent, which determines solubility of an inorganic compound including metal oxides. Dissociation equilibrium of an acid is also strongly dependent on water density. Dissociation constant of acid rises with increased density of water, resulting in drop of pH. Density of water and the density-related physical properties of water, therefore, are the major governing factors of corrosion and environmentally assisted cracking of metals in supercritical aqueous solutions. This paper discusses importance of "physical properties of water" in understanding corrosion and cracking behavior of alloys in supercritical water environments, based on experimental data and estimated solubility of metal oxides. It has been pointed out that the water density can have significant effects on stress corrosion cracking (SCC) susceptibility of metals in supercritical water, when dissolution of metal plays the key role in the cracking phenomena.

Studies on the Physical properties and Application of EPDM-Polymer Blends. Part 5. Physical Properties for EPDM-CR Blends (EPDM과 각종(各種) Polymer의 Blend에 의(依)한 성능변화(性能變化) 및 그 응용(應用)에 관(關)한 연구(硏究) (제5보(第5報)) EPDM과 Chloroprene Rubber의 Blend에 대(對)하여)

  • Kim, Joon-Soo
    • Elastomers and Composites
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    • v.7 no.2
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    • pp.175-182
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    • 1972
  • As a series of the studies of EPDM-Polymer blonds, the experiments are concentrated to the investigation of the physical properties of the EPDM-CR blends. The results are shown as follows: 1. In blending, tensile strength decreased with increase in EPDM contents and decreasing value was good results than various EPDM blending. 2. As EPDM Addition ratio is increased physical properties such as elongation have also improved, on the other hand, hardness and abrasion resistance decreased. 3. Aging resistance is less influenced by blending. 4. Tear strength is less influenced by blending and character after aging exhibited the same result. 5. Ozone resistance was much improved after blending. It was effective more than the ratio of EPDM/CR is 25/75.

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A Study on the Satisfaction of Occupational Health Nursing Work Related Infuluencial in Rural Area (산업간호사의 업무수행과 직무만족도에 관한 연구)

  • Kim Sung Sil;Kone Dong youn
    • Journal of Korean Public Health Nursing
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    • v.12 no.1
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    • pp.37-54
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    • 1998
  • For the purpose of investigating the job implementation of industrial health nurses catch hold of satisfaction, relational character of influence. A questionnaire survey was carried out on 131 nurses who employed at the manufacture of electronic products$(27.1\%)$, distribution industry$(38\%)$, service station$(22\%)$, construction$(10\%)$, et cetra The tool of this study was modified as completed from kang's(l991) checklist of questions were composed of the performance of nurses' duty(13 items), the factor of main influential character of nurses' job(11 items), job satisfaction(26 items). The results were as follows. 1. Industrial health nurses worked to labor follow up study after physical examination$(100\%)$, medication$(97.1\%)$, workers regular physical examination(95.5%), dressing$(94.1\%)$. 2. The factor of influence of job performance were personal relation$(100\%)$, satisfaction of nurses job performance$(86.7\%)$, environment of workplace$(86.7\%)$. 3. A period of long work experienced nurses felt the highest satisfaction as 3.44 point.

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A Study on Conception of Friendship in Korean Children of School Age (학령기 아동의 우정관계 개념에 관한 연구)

  • Lee, Ju Ok
    • Korean Journal of Child Studies
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    • v.6 no.2
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    • pp.35-58
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    • 1985
  • The purpose of this study was to investigate the components in friendship as reported by Korean children of School age Specially, four major aspects of friendship - definition of friendship, friendship formation, friendship expectation, and friendship termination were explored. The subjects of this study consisted of 600 elementary school children in Grades 1 through 6, 50 males and 50 females at each grade level. Based on Bigelow (1977) five open - ended questions were administered. First and second graders were interviewed individually while 3rd-6th graders replied to a questionnaire in class. For content analysis, responses of each child were coded into 22 categories and each category was assigned a score from 1 to 4 according to its frequency. The data were analyzed by factor analysis. The results showed that four major aspects of friendship in Korean children of school age were found to consist of four different factors. DEFINITION OF FRIENDSHIP was found to consist of the factors; 1) reciprocity of liking vs. helping 2) global evaluation vs helping 3) sharing and 4) common activities. FRIENDSHIP FORMATION was found to consist of the factors; 1) situational effects vs complex evaluation 2) structural dimension vs common activities 3) helping and 4) staring. FRIENDSHIP EXPECTATION was found to consist of the factors; 1) mutuality 2) common activities vs. loyalty & commitment 3) exclusive - dyadic activities vs. admiration (character) and 4) interactive a1truism. FRIENDSHIP TERMINATION was found to consist of the factors; 1) physical separation vs disappointment (character) 2) conflict 3) physical separation vs. psychological dimension and 4) general altruism.

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Investigating the Work Ability of Employees in the Korean Machinery Industry (기계산업에서의 작업능력 평가에 관한 연구)

  • Kang, Jong-Cheol;Baek, Seung-Yub;Chang, Seong-Rok
    • Journal of the Korean Society of Safety
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    • v.20 no.3 s.71
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    • pp.197-201
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    • 2005
  • The purpose of this study is to investigate the work ability of employees using the work ability index(WAI) and to confirm factors affecting the work ability of employees in the Korean machinery industry. In this study, correlations between the WAI score and variables affecting the work ability of employees(age, the class of the employee's position the character of the work and the type of the work) were analysed by the correlation analysis. The study population was consisted of employees from Korean machinery industry(n=446) and the WAI questionnaire was more or less modified considering actual circumstances in Korean. The WAI score of entire employees was slightly high (WAI score=42, Level=Good) and the WAI score of employees under 29 years of age was slightly higher than that of employees over 30 years of no. As a result of one-way ANOVA and correlation analysis, the character of the work and the type of the work were variables affecting the WAI score and the WAI score of physical/mental workers was higher than that of physical workers.

Effects of organic silicone additive material on physical and mechanical properties of mudstone

  • Chai, Zhaoyun;Kang, Tianhe;Chen, Weiyi
    • Geomechanics and Engineering
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    • v.6 no.2
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    • pp.139-151
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    • 2014
  • Mudstone is a very common rock that, when in contact with water, can exhibit considerable volume change and breakdown. This behavior of mudstone is frequently encountered in geotechnical engineering and has a considerable influence on infrastructure stability. This is particularly important in the present work, which focuses on mitigating the harmful properties of mudstone. The samples studied are of Permian Age mudstone from Shandong Province, China. Modification tests using organic silicone additive material were carried out. The mechanisms of physical properties modification of mudstone were comparatively studied using corresponding test methods, and the modification mechanism of organic silicone additive material acting on mudstone was analyzed. The following conclusions were drawn. The surface texture and characters of mudstone changed dramatically, surface character turns from hydrophilic to hydrophobic after organic silicone additive material modification. The changes in the surface character indicate a reduction in the water sensitivity of mudstone. After modification, the shape of porosity and fracture of mudstone changed unremarkable, and the total and free expansion ratios decreased obviously, whereas the strength increased markedly.

A Comparative Study on the Figurative Representation in Chinese and Korean Comedic Stories and the mitate of Japanese Comedic Stories (한중 소화(笑話) 속의 비유표현과 일본소화 속의 미타테(見立て)기법의 비교고찰)

  • Keum, Young-Jin
    • Cross-Cultural Studies
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    • v.40
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    • pp.7-39
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    • 2015
  • A kite in Japanese is the octopus. The reason is that when they saw the tail of the kite, they remembered the foot of octopus. And this kinds of associative action is called a mitate(見立て) in Japanese. Mitate is similar to metaphor, but these two concepts are somewhat different in causing laugh. Korean and Chinese comedic story's metaphor cause laugh by similarity of two things, but Japanese comedic story's mitate cause laugh by dissimilarity of two things. Chinese and Korean comedic stories focus on 90%'s similarity of two things, but Japanese comedic stories focus on 10%'s dissimilarity of two things. So, in this paper, I tried to consider the mitate of comedic stories of East Asia, and I found that there are the following three features. First, we can see the tendency of Chinese and Korean comedic stories's mitate concern on the human body's physical weakness. But, Japanese comedic stories subject to not the human body's physical weakness but the human's professional or identification temperament. Second, East Asian's comedic stories mitate which related character and word play came from the method of decomposition of Chinese characters, for that area's people have used Chinese characters for a long time. However, there are different cases in Japanese comedic story's Chinese characters mitate, where that characters mitate is combined with two different type's characters, for example, to associate one Chinese character and another Japanese characters, hiragana or katakana. Third, there are next type's mitate which came from misunderstanding of Chinese characters, it can be seen in Chinese and Korean comedic stories. Perhaps, this pattern related with Chinese three syllable's character pattern, which is a Chinese traditional word and character play.

A Study on the Physical Environment Characteristics of the Detached Housing Area in the Housing Site Development District (택지개발지구내 단독주택지의 물리적 환경특성에 관한 연구)

  • 박몽섭;하재명
    • Journal of the Korean housing association
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    • v.15 no.3
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    • pp.43-51
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    • 2004
  • The purpose of this study is to examine the physical characteristics of the detached housing area in the housing site development district. The process of this study is to investigate the characteristics of the physical structure and the building use, then to analyze the relationship of physical structure and the building use in the aspect of the morphological characteristics. The case study focuses on the Chil-kok2, An-Siml in Taegu. The streets pattern is composited gird and loop type mixed. The block is composited by 2 lots in general. But the obscurity of organization and character of the streets, the size and shape of lots which is not fit to the building use. A whole residential characters appears high residential density ratio. so residential environment became worse. The improving level of residential environment and efficiency of land use in the detached housing area of the housing site development district, firstly the propriety of the physical structure must be considered about detached house characters, and the housing uses which fit to the physical structure are needed, and also for the concrete realization of this, the designation of district, the zoning of residential area, the guideline of the district design, and establishment of comprehensive master planning in detached housing area are needed in aspect of the housing policy. As the result of this study, it suggests several design guideline to improve housing site development.