• Title/Summary/Keyword: 3-way Interaction

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Design of a Decentralized Controller for Deep-sea Mining System (심해저 채광시스템에 대한 분산제어기 설계에 관한 연구)

  • Yeu, Tae-Kyeong;Park, Soung-Jea;Hong, Sup;Kim, Hyung-Woo;Choi, Jong-Su
    • The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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    • v.13 no.3
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    • pp.252-259
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    • 2008
  • The deep-sea mining system is generally composed of surface vessel, lifting system, buffer, flexible pipe and miner. The mining system can be regarded as a large-scale system in which each subsystem is interconnected to other ones. In order to control a large-scale system, decentralized control approaches have been proposed recently. In this paper, as a basic study on application of decentralized control, firstly, the mining system was modeled in a simplified way. Lifting system and buffer were regarded as a spherical pendulum and the flexible pipe was taken as a two-dimensional linear spring connection. Based on the simplified model dynamics, the mining system can be decentralized two subsystems, the one consisting of surface vessel, lifting system and buffer, and the other, the miner. Next, this paper proposed the design of controller for each decentralized subsystem by regarding the interacting terms as disturbances. The controllers kept the constant distance between two subsystems during the miner was moving on the specified track. Finally, the efficiency of proposed controller was proven through the numerical simulation of the derived model.

Implications of the Transition into National Heritage System and the Enactment of Traditional Landscape Architecture (국가유산 체계전환 및 전통조경 법제화의 함의)

  • Hwang, Kwon-Soon
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.41 no.3
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    • pp.1-12
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    • 2023
  • After 60 years since the enactment of the cultural property protection act, Korea's national system of protecting what has been valued has been transformed into a 'National Heritage System'. To meet the new system, the classification of national heritage has been re-classified into three categories as cultural heritage, natural heritage, and intangible heritage. In accordance with the sub-classification, acts for cultural heritage act and intangible heritage has been amended and act for natural heritage has been enacted. Act for natural heritage defines natural heritage as natural objects or cultural heritage formed through the interaction between human beings and natural environment. The sub-classification are categorized as follows; animal, plant, geological and natural reserves, natural landscapes, historical-cultural landscapes, and mixed landscapes. It also allows creating traditional landscapes so that traditional way of landscaping can be encouraged and integrated with modern life within historic environment. In line with the new concept of traditional landscaping, existing practices will be also needed to be changed. Traditional landscaping will play a significant role in setting out the new administrative paradigm which focuses on more value preservation. This paper recommends that effective collaboration between government, experts of traditional landscaping, and owners should be established to integrate the new policy in practice.

Attentional Bias toward Angry Faces in Typically Developing Children and Children with Autism Spectrum Disorder (정상 발달 아동과 자폐 스펙트럼 장애 아동의 분노 표정에 대한 주의 편향)

  • Yunmin Choi;So-Yeon Kim
    • Science of Emotion and Sensibility
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    • v.27 no.3
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    • pp.121-134
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    • 2024
  • This study aimed to assess the attentional bias toward angry faces in typically developing (TD) children and children with autism spectrum disorder (ASD). A continuous performance task was employed, where a distractor appeared as a target letter ("T") and changed direction every 1,250 ms. Longer reaction times to the target in the presence of a distractor, compared to its absence, were considered as evidence of attentional bias toward the distractor. The task assessed the attentional bias toward angry faces in 14 boys with ASD and 17 TD boys, aged 6-12 years. A repeated-measures analysis of variance was conducted on reaction times with emotion, time, and group as independent variables. The three-way interaction effect approached significance. Group-specific analyses revealed that TD children exhibited significant attentional capture when angry faces first appeared, whereas those with ASD did not. Accuracy analysis revealed no significant differences between the groups, with both groups maintaining >85% accuracy, confirming the task's suitability for school-aged children. The absence of attentional bias toward angry faces in children with ASD indicates that these faces may not be perceived as particularly salient for children with ASD. These findings denote that interventions encouraging top-down processing of emotional cues, such as angry faces, may support the development of adaptive social skills in children with ASD.

Evaluation of Varietal Difference and Environmental Variation for Some Characters Related to Source and Sink in the Rice Plants (벼의 Source 및 Sink형질의 품종간차이와 환경변이의 평가)

  • Choi, Hae-Chun;Kwon, Yong-Woong
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.30 no.4
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    • pp.460-470
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    • 1985
  • Experiments were carried out to evaluate the standard gravity in determining potential kernel size and to determine the effective sampling way by analyzing intra - and inter - plant variations for some source and sink characters using eleven semi-dwarf indica and three japonica cultivars including four semi-dwarf indica nearisogenic lines. Also, additional experiments were conducted to understand yearly variation and variety x year interaction effects for ten characters related to source and sink and to characterize the varietal difference of pre- and post-heading self-competition employing three parental varieties and their F$\sub$5/ progenies in 1982 and 1983. It is desirable to determine the potential kernel size by average kernel wight of rice grains showing above 1.15 specific gravity. There was significant difference in leaf area per tiller, spikelets and sink capacity per panicle among vigorous, intermediate and inferior tillers classified by differentiated order and vigorousness. Although it was difficult to find out any significant difference in grain-fill ratio, ratio of perfectly ripened grain, potential kernel size and sink/source ratio between vigorous and intermediate tillers, there was big difference between them and inferior one. The coefficients of variation within each tiller-group for some characters related to source and sink were larger with the order of vigorous tillers < intermediate one '||'&'||'lt; inferior one, and the average heritability of all characters, evaluated by the ratio of varietal variance (equation omitted) to total variance (equation omitted), were higher with the order of inferior tillers '||'&'||'lt; intemediate one '||'&'||'lt; superior one. Therefore, it is desirable to sample the vigorous tillers to represent the varietal difference of these traits. '82-'83 year variations of three parental cultivars were significant for all traits except for leaf area/tiller, panicles/hill, leaf area index and rough rice yield. The characters showing highly significant variance of variety x year interaction were growth duration from transplanting to heading, leaf area/tiller, sink/source ratio, sink capacity/panicle and grain yield. Generalized yearly response of three parental varieties (Suweon 264, Raegyeong, IR1317-70-l) and their F$\sub$5/ progenies on the 1st and 2nd principal components extracted from ten source and sink characters generally exhibited reduction in both source and sink. However, there were diverse variety x year interactions such as progenies showing similar reaction with their parents and intermediate or recombinational yearly response with little or considerable yearly movement on the four-dimensional planes of the two upper principal components between 1982 and 1983. Sink characters revealing highly significant border effect were grain-fill ratio, spikelets and sink capacity per panicle. Among them the latter two especially showed significant variety x border effect interaction. Self-competition characterized by relative weakness of inside plant's sink characters compared to the border one was more severe during the reproductive stage before heading than maturing stage. Though the larger sink capacity per panicle generally disclosed the severer self-competition, some lines (like Suweon 264) revealed severe self-competition with small sink capacity while a few others showed tender self-competition in spite of big sink capacity per panicle.

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An Analysis of the Inherent Fear and Desire of the Character: Based on the Enneargram Personality Types Theory (<니모를 찾아서> 캐릭터에 내재된 두려움과 욕망 분석: 에니어그램 성격유형론에 근거하여)

  • Yang, Se-Hyeok
    • Cartoon and Animation Studies
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    • s.29
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    • pp.1-36
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    • 2012
  • The (2003) by Pixar, by succeeding at box office hit with good criticism, could be the film that made Pixar the most influential animation producer. Especially such character oriented narrative strategy, by raising the degree of characterizing and relationship, could made remarkable achievement as it is called a textbook of characterizing. This study focused on the inherent fear and desire of characters in . The inherent fear and desire were assumed to be the elements that strengthen characterizing and relationship more dynamically. In general, every single choice and behavior of human beings are likely to be depending on fear and desire, it is believed that human's life is dominated by those two elements. In this point, the characterizing of has three big features. It is that (1) it clearly described the fear inherent in characters and the effort to avoid the fear better than any other films of Pixar. (2) it strikingly accords with the interaction of characteristics of fear and desire established by Enneargram personality types. (3) the way of relieving fear of the main characters (Marlin and Nemo), as a unique feature of rescue and escape plot in which two characters are being apart, is not by interaction of characteristics of two main characters but is by characterizing the spiritual value supplementary to the deficiency of main character as sub character (Dory and Gill). In the previous study, , characterizing of panda 'Poe' is too outstanding and this fact is working as paradoxical limitation. On the other hand, set up of fear and desire of two main characters, Poe and Shifu and dynamics of characteristics are very delicate and effective. On the other hand, in the , in the course of settling down the conflicts between two main characters, father and son, it shows fresh and firm narrative structure with various characters and sub plots. However, though the degree of described fear and desire of main characters are very outstanding, it still reveals it limitation that the course of settlement is somewhat dependent. In conclusion, this study is considered to be another approach to animation characterizing, and also hopefully can be helpful in characterization and setting up relationships in the future.

The Usefulness of Product Display of Online Store by the Product Type of Usage Situation - Focusing on the moderate effect of the product portability - (사용상황별 제품유형에 따른 온라인 점포 제품디스플레이의 유용성 - 제품 휴대성의 조절효과를 중심으로 -)

  • Lee, Dong-Il;Choi, Seung-Hoon
    • Journal of Distribution Research
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    • v.16 no.2
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    • pp.1-24
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    • 2011
  • 1. Introduction: Contrast to the offline purchasing environment, online store cannot offer the sense of touch or direct visual information of its product to the consumers. So the builder of the online shopping mall should provide more concrete and detailed product information(Kim 2008), and Alba (1997) also predicted that the quality of the offered information is determined by the post-purchase consumer satisfaction. In practice, many fashion and apparel online shopping malls offer the picture information with the product on the real person model to enhance the usefulness of product information. On the other virtual product experience has been suggested to the ways of overcoming the online consumers' limited perceptual capability (Jiang & Benbasat 2005). However, the adoption and the facilitation of the virtual reality tools requires high investment and technical specialty compared to the text/picture product information offerings (Shaffer 2006). This could make the entry barrier to the online shopping to the small retailers and sometimes it could be demanding high level of consumers' perceptual efforts. So the expensive technological solution could affects negatively to the consumer decision making processes. Nevertheless, most of the previous research on the online product information provision suggests the VR be the more effective tools. 2. Research Model and Hypothesis: Presented in

    , research model suggests VR effect could be moderated by the product types by the usage situations. Product types could be defined as the portable product and installed product, and the information offering type as still picture of the product, picture of the product with the real-person model and VR. 3. Methods and Results: 3.1. Experimental design and measured variables We designed the 2(product types) X 3(product information types) experimental setting and measured dependent variables such as information usefulness, attitude toward the shopping mall, overall product quality, purchase intention and the revisiting intention. In the case of information usefulness and attitude toward the shopping mall were measured by multi-item scale. As a result of reliability test, Cronbach's Alpha value of each variable shows more than 0.6. Thus, we ensured that the internal consistency of items. 3.2. Manipulation check The main concern of this study is to verify the moderate effect by the product type of usage situation. indicates that our experimental manipulation of the moderate effect of the product type was successful. 3.3. Results As
    indicates, there was a significant main effect on the only one dependent variable(attitude toward the shopping mall) by the information types. As predicted, VR has highest mean value compared to other information types. Thus, H1 was partially supported. However, main effect by the product types was not found. To evaluate H2 and H3, a two-way ANOVA was conducted. As
    indicates, there exist the interaction effects on the three dependent variables(information usefulness, overall product quality and purchase intention) by the information types and the product types. As predicted, picture of the product with the real-person model has highest mean among the information types in the case of portable product. On the other hand, VR has highest mean among the information types in the case of installed product. Thus, H2 and H3 was supported. 4. Implications: The present study found the moderate effect by the product type of usage situation. Based on the findings the following managerial implications are asserted. First, it was found that information types are affect only the attitude toward the shopping mall. The meaning of this finding is that VR effects are not enough to understand the product itself. Therefore, we must consider when and how to use this VR tools. Second, it was found that there exist the interaction effects on the information usefulness, overall product quality and purchase intention. This finding suggests that consideration of usage situation helps consumer's understanding of product and promotes their purchase intention. In conclusion, not only product attributes but also product usage situations must be fully considered by the online retailers when they want to meet the needs of consumers.

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  • Different Look, Different Feel: Social Robot Design Evaluation Model Based on ABOT Attributes and Consumer Emotions (각인각색, 각봇각색: ABOT 속성과 소비자 감성 기반 소셜로봇 디자인평가 모형 개발)

    • Ha, Sangjip;Lee, Junsik;Yoo, In-Jin;Park, Do-Hyung
      • Journal of Intelligence and Information Systems
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      • v.27 no.2
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      • pp.55-78
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      • 2021
    • Tosolve complex and diverse social problems and ensure the quality of life of individuals, social robots that can interact with humans are attracting attention. In the past, robots were recognized as beings that provide labor force as they put into industrial sites on behalf of humans. However, the concept of today's robot has been extended to social robots that coexist with humans and enable social interaction with the advent of Smart technology, which is considered an important driver in most industries. Specifically, there are service robots that respond to customers, the robots that have the purpose of edutainment, and the emotionalrobots that can interact with humans intimately. However, popularization of robots is not felt despite the current information environment in the modern ICT service environment and the 4th industrial revolution. Considering social interaction with users which is an important function of social robots, not only the technology of the robots but also other factors should be considered. The design elements of the robot are more important than other factors tomake consumers purchase essentially a social robot. In fact, existing studies on social robots are at the level of proposing "robot development methodology" or testing the effects provided by social robots to users in pieces. On the other hand, consumer emotions felt from the robot's appearance has an important influence in the process of forming user's perception, reasoning, evaluation and expectation. Furthermore, it can affect attitude toward robots and good feeling and performance reasoning, etc. Therefore, this study aims to verify the effect of appearance of social robot and consumer emotions on consumer's attitude toward social robot. At this time, a social robot design evaluation model is constructed by combining heterogeneous data from different sources. Specifically, the three quantitative indicator data for the appearance of social robots from the ABOT Database is included in the model. The consumer emotions of social robot design has been collected through (1) the existing design evaluation literature and (2) online buzzsuch as product reviews and blogs, (3) qualitative interviews for social robot design. Later, we collected the score of consumer emotions and attitudes toward various social robots through a large-scale consumer survey. First, we have derived the six major dimensions of consumer emotions for 23 pieces of detailed emotions through dimension reduction methodology. Then, statistical analysis was performed to verify the effect of derived consumer emotionson attitude toward social robots. Finally, the moderated regression analysis was performed to verify the effect of quantitatively collected indicators of social robot appearance on the relationship between consumer emotions and attitudes toward social robots. Interestingly, several significant moderation effects were identified, these effects are visualized with two-way interaction effect to interpret them from multidisciplinary perspectives. This study has theoretical contributions from the perspective of empirically verifying all stages from technical properties to consumer's emotion and attitudes toward social robots by linking the data from heterogeneous sources. It has practical significance that the result helps to develop the design guidelines based on consumer emotions in the design stage of social robot development.

    Zooplankton Community Distribution and Food Web Structure in Small Reservoirs: Influence of Land Uses around Reservoirs and Kittoral Aquatic Plant on Zooplankton (소형저수지에서 동물플랑크톤 군집 분포와 먹이망 구조: 주변 토지 이용과 수변식생이 동물플랑크톤 군집에 미치는 영향)

    • Choi, Jong-Yun;Kim, Seong-Ki;Hong, Sung-Won;Jeong, Kwang-Seuk;La, Geung-Hwan;Joo, Gea-Jae
      • Korean Journal of Ecology and Environment
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      • v.46 no.3
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      • pp.332-342
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      • 2013
    • We collected zooplankton from May to October, 2011, with the aim of understanding the zooplankton community distribution and food web interaction between the open water and littoral (aquatic plants) zones in two small reservoirs with different land covers (Sobudang, Myeongdong). Small-sized reservoirs are more abundant in South Korea, and a total of 51 and 65 species of zooplankton were identified at the two small reservoir (Sobudang and Myeongdong), where zooplankton densities were more abundant in the littoral zone than in the open water zone. Cladocerans and copepods densities were also higher in the littoral zone, in contrast, rotifers showed higher densities in the open water zone (t-test, P/0.05). Epiphytic zooplankton dominated at the littoral zone (Lecane, Monostyla, Alona and Chydorus) because aquatic plants provided refuge spaces for attachment. Some rotifers (e.g. Brachionus, Keratella and Polyarthra) were more abundant in the open water zone because of their small size, which might help them to go unnoticed by predators. In two-way ANOVA, rotifers related to two reservoirs or habitat space (littoral zone and open water zone), but cladocerans and copepods showed a statistically significant relationship on only two reservoirs. The results of stable isotope analysis showed that zooplankton in the littoral zone tended to depend on organic matter attached to aquatic plants as a food source, which indicates the avoidance of competition of zooplankton with other macro-invertebrates (e.g. Damselfly larva, Cybister brevis and Neocardina denticulate). As a result, zooplankton community distribution is determined by not only habitat space (aquatic plant zone and open water zone) but also by food source (phytoplankton).

    Effects on senior fitness, cognitive function and daily living activity of female elderly with light dementia by continuous and intermittent exercises (연속적.간헐적 운동이 경증치매 여성고령자의 기능적 체력, 인지기능 및 일상생활수행능력에 미치는 영향)

    • Kang, Joo-Seong;Jeang, Il-Hong;Yang, Jum-Hong
      • Journal of the Korea Academia-Industrial cooperation Society
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      • v.11 no.11
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      • pp.4234-4243
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      • 2010
    • Dementia such as poor concentration, anxiety and tension makes it hard to continue exercise in reality. For this, intermediate exercise is suggested in this study. And the study investigates the effects on senior fitness, cognitive function(MMSE-K) and daily living activity(ADL) by continuous exercise and intermittent exercise, which helps to provide proper exercise treatment to them. For this, female elderly patients at A dementia hospital in B Metropolitan city are selected and they have been diagnosed with possible Alzheimer's disease according to DSM-IV. Among them, six(6) are grouped for continuous exercise and five(5) for intermediate exercise, total 11 people are finally tested. They are given hand&foot exercise, Korean folk dance and band exercise three times a week for the total 12 weeks. The continuous exercise group does their exercise one time of 30 minutes a day while the intermediate exercise group for three times of each 10 minute a day. For the result, SPSS Ver. 18.0 is used to get mean value(M) and standard deviation(SD) and in order to verify the interaction effect between exercise group and time, two-way repeated ANOVA is applied and statistical significance level is set at .05. The result shows that there is significant difference in time between senior fitness and cognitive function. But there is no significant difference in group and time${\times}$group. And there is no significant difference in time, group and time${\times}$group for daily living activity. Continuous exercise group and intermediate exercise group both have the similar effects. That does not mean that intermediate exercise is the best for all people with dementia, but in terms of exercise time, intermittent exercise may be effective for patients of light dementia.

    Network Analysis and Trends of Articles in the Journal of the Korean Society of Clothing and Textiles and International Journals (1977-2013) -Clothing Science Related- (1977~2013년 한국의류학회지와 해외 의류학 저널 출판논문의 연구동향 및 저자, 연구관계망 분석 -피복과학 분과를 중심으로-)

    • Park, Sungjin;Ha, Jeong-Yoon;Lee, Hae-Eun;Lee, Joo-Young
      • Journal of the Korean Society of Clothing and Textiles
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      • v.38 no.6
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      • pp.834-844
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      • 2014
    • This study investigated original articles published in the Journal of the Korean Society of Clothing and Textiles (JKSCT) from 1977 through 2013 with a consideration of the research collaboration structure. Two international journals were chosen: Textile Research Journal (TRJ) and International Journal of Clothing Science and Technology (IJCT) in order to compare the clothing science research trends of JKSCT-publications to international trends. The collected data from the three journals were used to probe periodic changes in the number of publications and nationality of authors to find the relative international position of Korean clothing and textile researchers. Figures, tables, and references in each article were counted to suggest the most suitable way to express and interpret clothing science results. In addition to the quantified data analysis, a qualified analysis was investigated with the co-author network analysis. The findings revealed an increase in the number of published articles in JKSCT until 2009 with the rapid decrease after. The number of co-authors in JKSCT was relatively small compared to TRJ and IJCT but growing in the clothing and textile science group. The number of references in JKSCT increased 3 times from 1977 to 2013; therefore, it was assumed there is more recent active clothing and textile research. Lastly, a pattern of authors' interaction and the most contributed authors in the network was illustrated in the clothing and textile science group. The present study confirms that JKSCT has made significant progress toward knowledge development in the clothing and textile field and suggests that the analysis of accumulative knowledge helps researchers broaden the scale and approach of studies.


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