• 제목/요약/키워드: Individual Characteristic

검색결과 729건 처리시간 0.029초

금속분말의 회전 볼밀링에 있어서 볼 충진율에 따른 볼 거동의 2차원 모델 시뮬레이션 (Two-Dimensional Model Simulation of Balls Motion in a Tumbler-Ball Milling of Metal Powder in Relation with Its Ball Filling Ratio)

  • 이길근;김성규;김우열
    • 한국분말재료학회지
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    • 제7권4호
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    • pp.189-196
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    • 2000
  • Effect of ball filling ratio on the behavior of balls motion and their collision characteristic in a tumbler-ball milling of metal powder are investigated by a computer simulation. The discrete element method and the extended Kelvin model composed of nonlinear spring and nonlinear dashpot were employed in the simulation. It can be possible that analysis of the individual balls motion in a three-dimensional actual mill by the two-dimensional model simulation, since the simulated trajectories of ball paths are in relatively good agreement with the actual ones. It knows that the balls motion in the tumbler-ball mill is strongly influenced by the surface conditions of the balls and mill container wall. The energy consumption of the individual balls during impact and the impact frequency of the individual balls increased with an increase in the ball filling ratio and showed maximum values at about 50-60% ball filling ratio, and then decreased.

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청소년의 개인적 특성과 또래괴롭힘 (Individual Characteristics and Peer Bullying/Victimization of Adolescents)

  • 배아영;이숙
    • 대한가정학회지
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    • 제44권4호
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    • pp.101-109
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    • 2006
  • This study investigated the relation of individual characteristics and peer bullying/victimization as experienced by middle school first-grade children. The major findings of the research were as follows; First, adolescents perceived lower 'appearance', and 'cognitive ability' scores than the medium. Second, aggression was the most significant factor affecting the direct and relational bullying, while withdrawal was the main significant factor affecting the direct and relational victimization in the children. In conclusion, there was a significant gender difference in the peer bullying/victimization.

신체 형태 관찰방법론에 대한 비교 연구 (Comparative Study on the Methodology of Whole Body form Diagnosis)

  • 신순식;류경호;김경철
    • 동의생리병리학회지
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    • 제19권5호
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    • pp.1162-1168
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    • 2005
  • For raising to the significance of whole Dody form diagnosis, I studied comparatively oriental medicine's whole body form diagnosis, biological evolution and physiognomy. In the oriental medicine, the whole body form diagnosis was recognized a means to deal with 'an individual physiology-pathology' and applied practically 'the typing of whole body form'. The physiognomy was applied to whole body form for the conversion of conception in social science and attached great importance to 'the face of human'. The biological evolution was applied to whole body form for the means by grasping the human individual characteristic, so much as magnified to the size of unconscious body-language(Synergologie, Tells exe.).

고급 차량음의 지역별 개인별 선호 음질에 관한 연구 (A Study on Regional and Individual Preference Sound Quality for Luxury Vehicle)

  • 김성현;박동철;홍석관
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2012년도 추계학술대회 논문집
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    • pp.364-369
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    • 2012
  • The vehicle sound classified into driving sound due to power-train, operating sound due to electric motor like sunroof, door lock and electronic sound. These vehicle sound has various features depend on the characteristic of sound that user required. And it based on cultural and regional difference of user. In this study, the user required vehicle sound characteristics for luxury sedan was investigated in overall viewpoint. And virtual target sound was developed through the result of user preference investigation. Next, Jury test was carried out in Germany, USA and Korea for evaluating the target sound. And the regional and individual difference of preference was analyzed through the result of jury test. This result of research will be contributed to design of vehicle sound quality and target sound setting.

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다수준분석을 활용한 개인특성 및 지역환경에 따른 우울증 관련 영향요인 분석 (Related Factors of Depression according to Individual Attributes and Regional Environment: Using Multi-Level Analysis)

  • 문석준;이가람;남은우
    • 보건행정학회지
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    • 제30권3호
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    • pp.355-365
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    • 2020
  • Background: This study is aimed to verify individual and regional-level factors affecting the depression of Koreans and to develop social programs for improving the depressive status. Methods: This study used individual-level variables from the Korean Community Health Survey (2018) and used the e-regional index of the Korean Statistical Information Service as the regional-level variable. A multi-level logistic regression was executed to identify individual and regional-level variables that were expected to affect the extent of depressive symptoms and to draw the receiver operating characteristic curve to compare the volume of impact between variables from both levels. Results: The results of the multi-level logistic regression analysis in regards to individual-level factors showed that older age, female gender, a lower income level, a lower education level, not having a spouse, the practice of walking, the consumption of breakfast higher levels of stress, and having high blood pressure or diabetes were associated with a greater increase in depressive symptoms. In terms of regional factors, areas with fewer cultural facilities and fewer car registration had higher levels of depressive symptoms. The comparison of area under the curve showed that individual factors had a greater influence than regional factors. Conclusion: This study showed that while both, individual and regional-level factors affect depression, the influence of the latter was relatively weaker as compared to the first. In this sense, it is necessary to develop programs focused on the individual, such as social prescribing at the local or community-level, rather than the city and nation-level approach that are currently prevalent.

2-D Graphical Representation for Characteristic Sequences of DNA and its Application

  • Li, Chun;Hu, Ji
    • BMB Reports
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    • 제39권3호
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    • pp.292-296
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    • 2006
  • DNA sequencing has resulted in an abundance of data on DNA sequences for various species. Hence, the characterization and comparison of sequences become more important but still difficult tasks. In this paper, we first give a 2-D ladderlike graphical representation for the characteristic sequences of a DNA sequence, and then construct a 3-component vector, in which the normalized ALE-indices extracted from such three 2-D graphs via D/D matrices are individual components, to characterize the DNA sequence. The examination of similarities/dissimilarities among sequences of the $\beta$-globin genes of different species illustrates the utility of the approach.

신경회로망에 의한 부하식별과 과도안정도 해석 (Load Characteristic Identification and Transient Stability Analysis Using Neural Network)

  • 이종필;김태응;지평식;남상천;임재윤;김정훈
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1997년도 하계학술대회 논문집 D
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    • pp.1127-1129
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    • 1997
  • In this paper, we developed to artificial neural network for load characteristic identification of power system. We can acquire active power and reactive power of individual load depending on the variation of voltage and frequency from the experimentation of a dynamic characteristic of load. The data of the experimental results were be used in learning of ANN. A proposed ANN model is applied to analyze the transient stability. To demonstrate the propriety of the power system transient stability with load model using ANN, the simulation of the two-machine five-bus system is carried out.

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리좀 특성이 반영된 하이퍼텍스트스페이스에 관한 연구 (A Study on the Hypertext-space based on the Rhizome characteristic)

  • 안현정
    • 한국실내디자인학회논문집
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    • 제20권4호
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    • pp.63-73
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    • 2011
  • In the middle of that a information form is being formlessly changed to diverse deirections, a design and a space as physical consequence show not only a allegory but mutually relational charicteristic meaning a nonboundary and nonlinear form by development of modem digital culture. Following development of the modern digital culture, a design and space which are physical results, show a point of correlative specificity, allegory, nonlinear and nonboundary, Not only a design and culture but also various circles handle a hypertext as a representative pivot in this change. this has same contexts as rhizome possessing a asignifiante and nomadic characteristic said by Felix Guattari and Gilles Deleuze. An ideal of rhizome space shows historical decisions, unexpected accidents, a concepts, an individual. a group, social compositions above an contrifugal exterior force, This study examines into surroundings designed by a hypertext and rhizome through a case accordingly and infers an ultramodern characteristic in conventional precognition with synthesizing a peculiarity of the digital generation space.

특성치 중요도를 고려한 다중특성치 파라미터 설계에 관한 연구 (A Study on the Parameter Design of Multiple Characteristics Considering Characteristical Importance)

  • 김용범;조용욱;김우열
    • 한국국방경영분석학회지
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    • 제25권2호
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    • pp.62-72
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    • 1999
  • Taguchi´s parameter design is to determine the optimal settings of design parameters of a product or a process such that the characteristics of a product exhibit small variabilities around their targer values. His analysis of the problem has focused only on a single characteristic or response. However the quality of most products is seldom defined by a characteristic, and is rather the composite of a great number of characteristics which are often interrelated and nearly always measured in a variety of units. The critical problem in dealing with multiple characteristics is how to compromise the conflict among the selected levels of the design parameters for each individual characteristic. In this paper, Methodology using SN ratio optimized by unvariate technique is proposed and a parameter design procedure to achieve the optimal compromise among several different response variables is developed. One existing case study is solved by the proposed method and the results are compared with ones by the sum of SN ratios, the expected weighted loss, the desirability functions, and EXTOPSIS model.

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