• Title/Summary/Keyword: Life Pattern

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A Study on the Characteristics of Software Reliability Model Using Exponential-Exponential Life Distribution (수명분포가 지수화-지수분포를 따르는 소프트웨어 신뢰모형 특성에 관한 연구)

  • Kim, Hee Cheul;Moon, Song Chul
    • Journal of Information Technology Applications and Management
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    • v.27 no.3
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    • pp.69-75
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    • 2020
  • In this paper, we applied the shape parameters of the exponentialized exponential life distribution widely used in the field of software reliability, and compared the reliability properties of the software using the non-homogeneous Poisson process in finite failure. In addition, the average value function is also a non-decreasing form. In the case of the larger the shape parameter, the smaller the estimated error in predicting the predicted value in comparison with the true value, so it can be regarded as an efficient model in terms of relative accuracy. Also, in the larger the shape parameter, the larger the estimated value of the coefficient of determination, which can be regarded as an efficient model in terms of suitability. So. the larger the shape parameter model can be regarded as an efficient model in terms of goodness-of-fit. In the form of the reliability function, it gradually appears as a non-increasing pattern and the higher the shape parameter, the lower it is as the mission time elapses. Through this study, software operators can use the pattern of mean square error, mean value, and hazard function as a basic guideline for exploring software failures.

Mapping of UV-B sensitive gene in Arabidopsis by CAPS markers (CAPS marker에 의한 Arabidopsis의 자외선 B 감수성 유전자 지도작성)

  • 박홍덕;김종봉
    • Journal of Life Science
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    • v.12 no.6
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    • pp.715-720
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    • 2002
  • A mutant Arabidopsis thaliana which is very sensitive to Ultraviolet-B(UV-B) radiation has been isolated by ethylmethane sulfonate(EMS) mutagenesis. Genetic cross proved the UV-sensitive gene(uvs) to segregate as a single Mendelian locus. For mapping of uvs, we crossed Arabidopsis thaliana Lansberg with uvs plant(Columbia), and made F2 plants by F1 selfcross. We designed 10 kinds of CAPS marker primers. Each primers amplifies a single mapped DNA sequence from uvs and Lansberg erecta ecotyres. Also identified was at least one restriction endonuclase for each of these PCR product that generates ecotype-specific digestion pattern. We got crossing over value of UB-sensitivity and each CAPS marker which located on different chromosome arm. The value of crossing over showed that uvs was linked to LFY3 which was on chromosome 5.

Growth-Dependent Variations in Antioxidant and Redox Enzyme Activities of Schizosaccharomyces pombe

  • Cho, Young-Wook;Park, Eun-Hee;Ahn, Ki-Sup;Kim, Dae-Myung;Lim, Chang-Jin
    • BMB Reports
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    • v.34 no.3
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    • pp.278-283
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    • 2001
  • Antioxidant and redox enzyme activities are known to be involved in the cellular responses to various stresses. Their variations were observed according to the growth cycle of the fission yeast Schizosaccharomyces pombe. Peroxidase activity appeared to be notably higher in the early exponential phase than in the mid-exponential and stationary phases. However, catalase activity showed a variation pattern resembling the growth curve. Glutathione S-transferase activity was higher in the early exponential and late stationary phases. Activities of the two redox enzymes, thioredoxin and thioltransferase (glutaredoxin), were high in the stationary phase. However, their activities appeared to increase from the early exponential to mid-exponential phase. Total glutathione content had a varying pattern similar to that of thioredoxin and thioltransferase. However, its content in the early exponential phase was high. These results propose that antioxidant and redox enzymes tested are also involved in the mechanism of cell growth.

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Diurnal Changes of Chlorophyll Fluorescence and Antioxidative Enzyme Activity of the Leaves from Four Subtropical Plants (아열대성 식물 4종의 엽록소형광과 항산화효소 활성의 일주기적 변화)

  • Oh, Soon-Ja;Goh, Chang-Hyo;Koh, Seok-Chan
    • Journal of Environmental Science International
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    • v.16 no.5
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    • pp.633-640
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    • 2007
  • The diurnal changes of chlorophyll fluorescence and antioxidative enzyme activity were investigated in the leaves from four subtropical plant species (Crinum asiaticum var. japonicum Bak., Osmanthus insularis Koidz., Asplenium antiquum Makino and Chloranthus glaber Makino) under the natural habitats in summer and winter. The intensity of chlorophyll fluorescence was lower in O-, I-, J-, P-steps of O-J-I-P transient in winter than summer, and prominent diurnal change was not found in the fluorescence intensity of four subtropical plant species in winter. The activity and isoenzyme pattern of SOD and catalase did irregularly change seasonally and diurnally in four subtropical plant species. In contrast, the peroxidase activity and isoenzyme pattern was different depending on plant species and growth seasons; The activity increased slightly more in winter than in summer in four subtropical plant species, and several isoenzymes appeared in the leaves from C. asiaticum var japonicum, O. insularis and A. antiquum in winter.

Unit Planning of Single Undergraduate Student's Rental Housing Corresponding to their Life Pattern and Housing Needs (대학생 1인 가구의 생활패턴 및 주거요구에 따른 대학생 전용 임대주택 평면계획방안)

  • Han, Jee-Hee;Yoon, Chung-Sook
    • Journal of the Korean housing association
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    • v.22 no.4
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    • pp.93-102
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    • 2011
  • The purpose of this study is to suggest unit design considerations for college student's rental houses. To achieve this purpose, life pattern, residential space usage and housing needs were investigated. Data were collected by in-person interviews. Interview participants were 37 single undergraduate students living near the Shinchon station subway line 2. Subjects were selected by housing types-a Gosiwon, a boarding house or an one-room house-. Qualitative approaching method was used, and quantitative analysis was additionally employed to count keyword found during the interviews. SPSS window version 14.0 was used for the descriptive statistics and the analysis of the items with multi-response analysis. The major findings are as follows; a personal space for each resident with a common kitchen and a bathroom was mostly desired for the unit. Therefore, Two diagrams would be used as examples to explain the new concept of unit planning.

An Exploratory Study on Daily Grooming Ritual: Transition from Private Self to Public Self (외모단장 의례에 대한 탐색적 연구: 사적 자아에서 공적 자아로의 일상적 전환)

  • Hur, Hee Jin;Choo, Ho Jung
    • Fashion & Textile Research Journal
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    • v.18 no.6
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    • pp.812-824
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    • 2016
  • Morning grooming is a ritual daily held for transition from private to public life of an individual. Based on the previous literature's definition of the ritual characteristics, this study aims to identify the meaning of grooming rituals that are repeatedly performed every morning. Although many studies have conducted ritualistic analysis of the behaviors that are closely related to daily life, few studies analyze grooming from a ritualistic perspective. Establishing the ritual - that is, a person's distinct behavioral pattern-as the core concept, this study reveals the relationship between ritual performers and the ritual's composition to identify the meaning of the grooming ritual. The study conducts qualitative research with ten participants to identify the ritual characteristics of every-morning grooming and the factors that influence this ritual. Considering everyday grooming as a behavioral pattern that possesses mostly ritualistic elements, the study examines both the external characteristics that are shown through the methods of grooming and the internal characteristics that reflect the inherent symbolic meaning. This study contributes to extending the scope of the field. By understanding the factors that influence grooming rituals, companies can communicate their marketing messages regarding the step-by-step approach to grooming, thereby supporting consumers to effectively use various grooming products.

Robust Extraction of Lean Tissue Contour From Beef Cut Surface Image

  • Heon Hwang;Lee, Y.K.;Y.r. Chen
    • Proceedings of the Korean Society for Agricultural Machinery Conference
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    • 1996.06c
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    • pp.780-791
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    • 1996
  • A hybrid image processing system which automatically distinguished lean tissues in the image of a complex beef cut surface and generated the lean tissue contour has been developed. Because of the in homegeneous distribution and fuzzy pattern of fat and lean tissue on the beef cut, conventional image segmentation and contour generation algorithm suffer from a heavy computing requirement, algorithm complexity and poor robustness. The proposed system utilizes an artificial neural network enhance the robustness of processing. The system is composed of pre-network , network and post-network processing stages. At the pre-network stage, gray level images of beef cuts were segmented and resized to be adequate to the network input. Features such as fat and bone were enhanced and the enhanced input image was converted tot he grid pattern image, whose grid was formed as 4 X4 pixel size. at the network stage, the normalized gray value of each grid image was taken as the network input. Th pre-trained network generated the grid image output of the isolated lean tissue. A training scheme of the network and the separating performance were presented and analyzed. The developed hybrid system showed the feasibility of the human like robust object segmentation and contour generation for the complex , fuzzy and irregular image.

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Relationship between the oral Health, oral health impact profile-14 and total health index of male workers (남성 근로자들의 구강건강, 구강건강영향지수 및 전신건강 지수의 관련성)

  • Kang, Hyun-Kyung;Jang, Kyeung-Ae
    • Journal of Korean society of Dental Hygiene
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    • v.13 no.1
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    • pp.13-20
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    • 2013
  • Objectives : This research is performed to arrange oral health improvement program and improve the quality of life by raising total health index of male workers. The relationship between the oral health, oral health index and total health index of workers are investigated through the direct or indirect effects based on structural equational modeling. Methods : Total 272 people who work in Gyeong-Nam province participated in this survey. Results : Oral health knowledge has an meaningful direct effects on the oral health practice with ${\gamma}$=.259 and dietary pattern with ${\gamma}$=.224. Total health index has indirect relationship with the oral health index with ${\beta}$=.141 and dietary pattern has direct relationship with the oral health index with ${\beta}$=.315. The oral health index has direct relationship with total health index with ${\beta}$=.454. Conclusions : Our research shows that there is meaningful relationship between the oral health, oral health index and total health index of workers. The systematic and continuous programs for oral health should be transferred to workers for the raise of oral health and the quality of the life.

A Study on the Development of Digital Yut Playing System Based on Physical Computing (피지컬 컴퓨팅을 기반으로 한 디지털 윷놀이 시스템 개발에 관한 연구)

  • Koh, Byoungoh
    • Journal of The Korean Association of Information Education
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    • v.21 no.3
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    • pp.335-342
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    • 2017
  • The artificial intelligence, robot technology, Internet of things, and life sciences that create added value while dramatically transforming human life have been highlighted in the fourth industrial revolution, the next industrial revolution. In order to adapt to the 4th industry, it is necessary to educate students to develop fusion thinking and computing thinking ability. Therefore, in this study, we developed a digital Yut Playing system based on physical computing, reflecting STEAM and decomposition, pattern recognition, abstraction, and algorithm design, which are components of computing thinking. By experiencing the developed system and applying it to education, it raised interest and interest in programming education and improved programming lesson for fusion thinking and computing thinking ability.

A Study on Recognition and Consumption about Instant Food of Homemakers in Inchon (주부의 가공식품에 대한 인식 및 소비 연구 -인천 지역을 중심으로-)

  • 이강자
    • Journal of the East Asian Society of Dietary Life
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    • v.5 no.3
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    • pp.299-307
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    • 1995
  • This study was surveyed concept and consumption for Instant foods by homemakers in Inchon city. The result of study were as follows. 1. In the view of integral numberized high, middle, low, high group reached 19.2%, middle was 50.2% and low showed 30.1%. As higher their ages up, the point was high. 2. Their concept of instant food is close to 'convenience' and 'time saving' but far from 'good for health', 'high nutrition' and 'safe sanitation'. 3. Divied into two groups with positive and negative, which proved their concept of Instant foods as 57.5% positively. Negative group which has negative concept for instant food has a good dietary pattern, Positive group which consists of low ages and high income showed positive attitute for instant fodds. 4. Consumption of bred, noodles and soybean sourecs is little bit higher than other items. Consumption by the group which has low ages, highly educated, having small number of children proved high percentage. Also, the group which has good dietary pattern showed low consumption of instant foods comparing to other group. 5. According to the relation between concept and consumption of the instant foods the group that conceives instant foods positive consumes higher than the group which has negative concept.

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