• Title/Summary/Keyword: Cause-and-effect Relation

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The Development of Temporal Mining Technique Considering the Event Change of State in U-Health (U-Health에서 이벤트 상태 변화를 고려한 시간 마이닝 기법 개발)

  • Kim, Jae-In;Kim, Dae-In;Hwang, Bu-Hyun
    • The KIPS Transactions:PartD
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    • v.18D no.4
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    • pp.215-224
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    • 2011
  • U-Health collects patient information with various kinds of sensor. Stream data can be summarized as an interval event which has aninterval between start-time-point and end-time-point. Most of temporal mining techniques consider only the event occurrence-time-point and ignore stream data change of state. In this paper, we propose the temporal mining technique considering the event change of state in U-Health. Our method overcomes the restrictions of the environment by sending a significant event in U-Health from sensors to a server. We define four event states of stream data and perform the temporal data mining considered the event change of state. Finally, we can remove an ambiguity of discovered rules by describing cause-and-effect relations among events in temporal relation sequences.

The Relation between Patriarchal Family Environment and Zero-sum Beliefs with the Moderated Mediating Effect of Gender through Sexism (가부장적 가정환경과 제로섬 신념의 관계에서 성차별적 인식을 통한 성별의 조절된 매개효과)

  • Joeng, Ju-Ri;Sung, Yoonhee
    • Korean Journal of Culture and Social Issue
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    • v.27 no.4
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    • pp.457-474
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    • 2021
  • The study aimed to investigate the relation between patriarchal family environment and zero-sum beliefs, and the mediating effect of sexism on the relation based on the Instrumental Model of Group Conflict (Esses et al., 1998). This study also examined the moderating effect of gender on the relation between patriarchal family environment and sexism, and the moderated mediating effect of gender through sexism. Participants were 310 first-year college students (234 males and 76 females) in the college of science and engineering, and they completed a survey consisting of patriarchal family environment, sexism, and zero-sum belief. Data were analyzed using SPSS Macro Process, and the results indicated that the relation between patriarchal family environment and zero-sum beliefs was fully mediated by sexism. In addition, the relation between patriarchal family environment and sexism was moderated by gender. Specifically, patriarchal family environment significantly predicted sexism for men, but not for women. Moreover, only for men, sexism mediated the relation between patriarchal family environment and zero-sum beliefs. Therefore, patriarchal family environment could cause sexism which could promote zero-sum beliefs for men.

A Study on the Relation of Bottleneck and Satisfaction Factors in Korean Succession Companies (우리나라 승계기업의 애로사항과 만족도의 관계에 관한 연구)

  • Rho, Hyung-Jin;Han, Sang-Do;Jang, Doc-Sung
    • Journal of the Korea Society of Computer and Information
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    • v.12 no.1 s.45
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    • pp.231-242
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    • 2007
  • This study was conducted to identify the relation of bottleneck and satisfaction factors in Korean succession companies. The final goal of this paper is finding some strategies and supporting system for Korean succession companies. According to the results of the study, we found four latent variables of the cause variables and two latent variables of the result variables. Three latent variables of the cause variables have an direct effect on two latent variables of the result variables.

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Speed-up Design for Overhead-line Considering Contact Force Fluctuations by a Wave Reflection and a Doppler Effect (파동반사와 도플러 효과를 고려한 전차선의 속도향상 설계)

  • Cho Yong Hyeon;Lee Ki Won;Kwon Sam Young;Kim Do Won
    • Proceedings of the KSR Conference
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    • 2004.10a
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    • pp.1353-1359
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    • 2004
  • There are many massive components added on the railway overhead-line. These components cause larger fluctuations of contact forces, which are due to wave reflections and Doppler effects when a high-speed train passes those. In this paper, mathematical formula are derived for the relation between the added mass and contact force fluctuations. Using the derived formula, we calculate a added mass on the overhead-line which cause amplification factor to become 2.5. German design practice requires that amplification factor due to the wave reflection should be less than 2.5 to obtain good current collection performance. To show the validity of the formula, simulation results are compared with the calculation results. Simulation results showed that contact force fluctuations grow rapidly when an added mass is larger than the calculation result. Therefore, the simple form of formula can be used for estimating maximum added mass not to cause large fluctuations of contact forces in early design phase.

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A Criticism of Disjunctive Cause: The Role of Moderate Variable, Causal Interaction, and Probability Trajectory in Disjunctive Causal Structure (선언 원인에 대한 평가와 대안: 조절 효과 변수, 인과상호작용, 확률 궤적에 토대한 인과 구조의 역할)

  • Kim, Joonsung
    • Korean Journal of Logic
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    • v.20 no.1
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    • pp.21-67
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    • 2017
  • In this paper, I critically examine Sartorio's (2006) argument for disjunctive cause, and put forth disjunctive causal structure in a different way. I show that the disjunctive causal structure meets not just what Sartorio means to claim but also our understanding of causal responsibility. First, I introduce Sartorio's argument for disjunctive cause. Second, I critically discuss Sartorio's responses to the criticisms of her arguments for disjunctive cause, and propose another problem with her arguments. Finally, I explicate in a different way Sartorio's disjunctive cause in terms of disjunctive causal structure founded on moderate variables, causal interaction, and probability trajectory. I notice, regarding the disjunctive causal structure, the role of causal interaction of cause events with moderate variables. I reveal, regarding the disjunctive causal structure, the significance of indetermination of cause events and effect events for our understanding of causal responsibility. I show that the disjunctive causal structure guides us more convincingly to assign causal responsibility to an agent. I come to three conclusions. First, there is no disjunctive cause event Sartorio argues for. Second, propensities of events to be causally connected to an effect event constitute disjunctive relation. Third, we should notice indetermination of cause events and effect events while assigning causal responsibility to an agent.

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A Study on the Relation of Fault in Distribution Line by Insulator deterioration (배전용 애자장치의 열화특성 및 선로사고와의 상관관계에 관한 연구)

  • Kim, Tae-Won;Shin, Jeong-Hoon;Park, Seong-Taek
    • Proceedings of the KIEE Conference
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    • 1998.07e
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    • pp.1666-1669
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    • 1998
  • In General, Distribution Line is largely effected by temperature, humidity and natural system's condition. The power system network, particularly fault of power distribution system connected to comsumer would cause a magnificent effect to the society. And then Improvement in living conditions and increase in the industrial production brought by the development in economy and new technology, in due course, ask more and reliable electric energy. In this paper, we will describes that the effection of deterioration in Insulator and its relation of fault in power system.

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A Study on the Characteristic and Rising Cause of Sheath Circulating Current by Analysis and Measurement (해석 및 측정을 통한 시스순환전류 특성 및 상승원인 검토)

  • Gang, Ji-Won;Yang, Hae-Won
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.51 no.10
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    • pp.525-533
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    • 2002
  • It is common to install multiple lines in the same route. Recently, excessive sheath circulating current was partially measured in underground cable systems of KEPCO. Especially, the installation type, unbalance section length between joint boxes and zero sequence current by distribution cable have an effect on the rising of sheath circulating current in the underground transmission system. If excessive current flows in sheath, sheath loss which is reduced the transmission capacity is produced. This paper describes the relation analysis of sheath circulating current and burying types. And also, a detailed analysis on rising cause and characteristic of sheath circulating current by considering various unbalanced conditions presents using analysis and measurement regarding cable systems which have the problem of excessive sheath circulation current.

A New Approach to Teaching “Candle도s Combustion in a Bottle” Experiment (“병안의 촛불실험” 지도를 위한 새로운 접근)

  • 류재인;고한중;한광래
    • Journal of Korean Elementary Science Education
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    • v.19 no.2
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    • pp.15-27
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    • 2000
  • The purpose of this study was to survey the thinking of children, preliminary elementary teachers and elementary teachers in relation to the experiment of candle's combustion in a bottle on the water, to develop some supplementary experiments for the correction of the misconception on this experiment and to propose a new teaching method for this subject-matter The results of this study can be summarized as follows. 1. Most of the answers are related to the simple observation as the extinguishing of candlelight and the water rising in the bottle after a candle's combustion. And it is appeared that all the groups are similarly short of the ability of experimental design to verify the cause and effect. 2. from the results of the developed supplementary experiments, it is concluded that the main cause of the water rising is not the combustion of oxygen, but the expansion of volume and the releasing of air in the bottle in the bottle by heat of candle's combustion. 3. Based on the above results, a new direction for the teaching method of this subject is proposed.

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Effects of Centric Relation Splint Therapy on the Occlusal Contact State in Craniomandibular Disorders (교합안정장치 치료가 교합접촉상태에 끼치는 효과)

  • Whan-Cheol Kim;Kyung-Soo Han;Seok-Man Kang
    • Journal of Oral Medicine and Pain
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    • v.18 no.2
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    • pp.71-79
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    • 1993
  • Many types of occlusal splints are used for treatment of craniomandibular disorders. Most widely used splint among them is flat-type centric relation splint. Insertion of splint into the mouth may cause increasing of vertical dimension, masticatory muscle realignment and rearrangement of maxillo-mandibular relationship, so as a result of splint treatment, occlusal relation may vary whether you like it or not. From this point of view, occlusal state of patient shold be frequently monitored to prevent undesired or harmful effect during occlusal splint therapy. The purpose of this study was to investigate the effect of occlusal splint, especially centric relation splint, on the occlusal contact state after 3 months treatment. 32 patients with craniomandibular disorders who had unilateral symptoms participated in this study. To observe and record occlusal contact state, the author used T-Scan system (Tekscan Co. U.S.A.) at both pretreatment and posttreatment. The recorded date were analyzed with regard to contact number, contact force and contact time, change of anterior tooth contact and coincidence of first contact point with affected side were observed, too. Aan last, the subjects were divided into 2 groups and compared, according to average value of VAS index, with respect to joint pain, sound and limitation of movement, respectively. The collected date were statistically processed with SPSS and the result as follows : 1. Total occlusal contact number and force were not changed by occlusal splint therapy but total occlusal contact time decreased slightly. 2. There was a tendency of increasing number of subjects with anterior tooth contact after treatment and change of first contact point side were observed in as many as 40.6% of subjects. 3. There were no difference between higher and lower group of VAS index, and between pretreatment and posttreatment in each group, either.

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A Study on the Structure and Characteristic of Overlapping of Storytelling about Experience Space - Focus on the Museum space - (체험 공간 스토리텔링의 중첩 구조 및 특성에 관한 연구 - 뮤지엄 공간을 대상으로 -)

  • Ahn, Hyunjeong
    • Korean Institute of Interior Design Journal
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    • v.22 no.4
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    • pp.41-51
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    • 2013
  • Lately in many cases, Spaces are designed by stimulating user's sensibility, emotion, psychological software over based on the user behavior and purpose of space. Because space is not only practical using and use purpose but also the place for expressing ourselves by experiences. But space is a physical thing. so we need to arrange a structure of abstract and formless source of design by sophisticated grammaticalization. Especially storytelling of that abstract thing have characteristics of relation, process among users and space. because storytelling is focused on the discourse of stories and relationship record of that discourses. So this is used by expression device for user's emotion things and subjects in numerous cases. And storytelling is the basic, important element for user's experience in a space. By the way, Overlapping is also basic element for being possible to make experiences by concrete thing. that is because, Overlapping is layering phenomenon of some objects. Overlapping is made distance, distance make depth, and this relations take us an experience. Finally storytelling, Overlapping and space of experience are relation of cause and effect. So in this thesis, researcher looks for the relation characteristics between storytelling and overlapping by experience. and makes the abstract source into concrete and sophisticated formular.