• Asia pacific journal of information systems
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• 제25권1호
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• pp.25-60
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• 2015

Use cases are commonly used to represent customer requirements during systems development. In a large software development environment, finding relevant use cases from a library of past or related projects is a complex, error-prone and expensive task. This study proposes an ontological methodology to support use case retrieval in an interactive manner. The architecture of a prototype system that implements this methodology is presented. To evaluate whether the proposed approach can provide satisfactory results to users, this study develops a research model and hypotheses based on interaction theory. These hypotheses are empirically tested using a laboratory experiment which controls information filtering and perceived interaction. Our study suggests that a system which interacts with a user intelligently reduces cognitive load and increases self-efficacy and satisfaction.

• Bulletin of the Korean Chemical Society
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• 제2권4호
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• pp.132-138
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• 1981

Ab initio molecular orbital calculations have been performed in an effort to determine which types of chemical interactions play essential roles for the system, , $H_2O+CH_2SH^+$, and $H_2O+ CH_2S$. The most important contribution to the interaction energy in controlling reaction path is the exchange repulsion energy, EX, which is largely responsible for the shape of the total interaction energy curve. In the ion-molecule reaction, prior protonation of thioformaldehyde or prior deprotonation of water leads to formation of the corresponding ionic adducts ($H_2O+CH_2SH$ and $HOCH_2S^-$), with no barrier to reaction, simulating specific acid and base catalysis, respectively, as in the case of formaldehyde. Otherwise, approach of water to thioformaldehyde gives rise to a completely repulsive interaction.

• Wind and Structures
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• 제29권1호
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• pp.33-41
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• 2019

The interaction of head waves with an infinite row of identical, equally spaced, rectangular breakwaters is investigated in the presence of uneven bottom topography. Using linear water wave theory and matched eigenfunction expansion method, the boundary value problem is transformed into a system of linear algebraic equations which are numerically solved to know the velocity potentials completely. Utilizing this method, reflected and transmitted wave energy are computed for different physical parameters along with the wave field in the vicinity of breakwaters. It is observed that the wave field becomes more complicated when the incoming wavelength becomes smaller than the channel width. A critical ratio of the gap width to the channel width, corresponding to the inflection point of the transmitted energy variation, is identified for which 1/3 of the total energy is transmitted. Similarly, depending on the incident wavelength, there is a critical breakwater width for which a minimum energy is transmitted. Further, the accuracy of the computed results is verified by using the derived energy relation.

• Bulletin of the Korean Chemical Society
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• 제6권5호
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• pp.277-279
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• 1985

Orbital interactions of the types, ${\sigma}-{\pi},\;{\sigma}^*-{\pi},\;{\sigma}-{\pi}^*\;and\;{\sigma}^*-{\pi}^*$ are investigated for the rotamers of ${\alpha}$-X-acetones (X = F and Cl) using STO-3G method of calculation. It was found that the interactions are possible only in gauche forms, and the ${\sigma}^*-{\pi}^*$ interactions are in general greater than the $\sigma-\pi$ interactions due to the greater overlap, in spite of the greater energy gap involved; the greater ${\sigma}^*-{\pi}^*$ interaction causes greater lowering of ${\pi}^*$ level relative to the lowering of ${\sigma}$ in the ${\sigma}-{\pi}$ interaction so that both ${\sigma}-{\pi}^*$ and $n-{\pi}^*$ interactions are enhanced in the gauche forms. The extra stability of the gauche form and the red shift in the $n-{\pi}^*$ transition are thus found to be natural corollaries of the greater ${\sigma}^*-{\pi}^*$ interaction in the gauche forms.

• Journal of Information Science Theory and Practice
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• 제9권1호
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• pp.79-89
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• 2021

This study explores Facebook use in Vietnamese academic libraries by analysing libraries' posts on their Facebook pages and library users' interaction with those posts. A total of 260 posts on four academic libraries' Facebook pages were examined using the content analysis method. The findings reveal that Facebook was mainly used to encourage reading and to transmit announcements. Most of the academic libraries published one post a week. The photo was the most frequent media type of libraries' posts and gained a higher level of interaction than other posts. According to the research results, the user engagement was low, and the user interaction with libraries' posts generally was in the form of reaction. The findings can help better understand Facebook use in Vietnamese academic libraries and may assist libraries in creating a plan for using Facebook more effectively.

• Journal of Information Science Theory and Practice
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• 제10권3호
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• pp.15-23
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• 2022

Participants in real-time online sessions, be it (business) meetings, virtual school lessons, or social live streams, all engage in cyber social interactions. Unlike parasocial interactions, cyber social interactions are characterized by reciprocity and temporal proximity. In contrast to social interactions, they lack spatial proximity and bodily contact. This is a fairly new concept in information science that rose from technological advances and unprecedented circumstances (e.g., the rise of digital economy and knowledge workers being able to work remotely or, more recently, global lockdowns and contact restrictions). As a result, the past ways of working and socializing were transformed by making them, in some cases predominantly, virtual. Regarding the example of social live streaming we exhibit the importance of cyber social interactions for information behavior research. This conceptual article is a plea for information science to engage more in human-human online relations and interactions.

• Educational Technology International
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• 제10권2호
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• pp.63-83
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• 2009

The purpose of this study was to investigate the cognitive mechanism of e-Learning contents development projects on the basis of the Shared Mental Model theory perspective. To pursue the purpose, a theoretical model and several hypotheses were developed based on relevant literature. Thirty five (35) e-Learning contents development teams composed of 202 instructional designers from for-profit professional e-Learning companies in Korea were participated in this study. For the analyses of the fit of the Model and parameter estimations, Structural Equation Modeling (SEM) method was employed. As hypothesized, e-Learning contents development team members' interaction leads to higher SMMs which in turn facilitate member satisfaction within the team. Meanwhile, the frequency of interaction among team members decreases as projects progress.

• International Journal of Internet, Broadcasting and Communication
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• 제15권4호
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• pp.21-30
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• 2023

The aim of this study is to investigate how travelers' destination visit intentions are influenced by avatar self-congruence in the metaverse platform. We extended the impression management theory by considering both perceived enjoyment and social engagement, and illustrated the interaction effect based on users' digital age. To achieve this, we conducted an online survey with 302 users. The survey results revealed that avatar self-congruence significantly influenced users in terms of perceived enjoyment and social engagement, thereby affecting their destination visit intentions. This study also revealed a significant interaction effect between digital age type and avatar self-congruence on users' perceived enjoyment. The results of this study are expected to provide not only a theoretical reference for metaverse research and travel research but also managerial implications for destination management and metaverse applications.

• 부모자녀건강학회지
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• 제5권2호
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• pp.253-276
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• 2002

Mother and infant relationship has a great influence on child's developments. Expecially, mother and infant relationship is affected by mother and infant interactions during one year after birth and an omen of mother-infant interaction after birth is mother-fetus interaction. This study was conducted to develop mother-fetus interaction promotion program of talking and tactual stimulation aimed at enhancing sensitivity of primiparas and to evaluate the effect of the nursing intervention program on mother-fetus interaction and mother-infant play interaction. Non-eguivalent control group posttest design was used, and Blumer's symbolic interaction theory and Barnard's mother-infant interaction model was used a conceptual framework of this study. Fifty primiparas and infant(26 mother-infant dyads for intervention group and 24 dyads for control group) were recruited from three general hospital and an OBGY clinic located in Kwang Nung city. Data was collected from January 30th to December 20th in 2001. For the intervention group, programed education which focused on mother-fetus interaction in the 1st trimester. Telephone counselling was provided with interval of two weeks. For two groups, home visiting for data collection of mother- fetus interaction was conducted at 36 to 38 weeks of gestational age. And mother-infant play interactions were assessed at 4 to 6 weeks after birth using videotapes. Play situations were videotaped and two trained observers analyzed the tapes. The data were analyzed using chi-square test and Fisher's Exact Test to test the equivalence of two groups, and the effect of intervention progrom was determined with t-test and Wilcoxon Rank Sum test. The results were as follows: 1. The significant difference was found in mother-fetus interaction between two groups(t=2.085, P=0.0425). It indicated that intervention progrom was effective in improving mother-fetus interaction. 2. The significant difference was found in mother-infant play interaction between two groups(W=347.5, P=0.0001). In subscale analysis, three subscales showed significant differences between the groups: interactional behavior of mother(t=5.921, P=0.0001), interactional behavior of infant(t=5.736, P= 0.0000), and synchronic interactional behavior of mother and infant(t=7.940, P= 0.0000). In conclusion, this study has shown that the applied nursing intervention aimed at enhancing sensitivity of primiparas promoted mother-fetus interaction and mother-infant play interaction. Therefore, this study suggests that this nursing interventions to increase maternal sensitivity to the fetus's movement should be broadly applied to primiparas, which can be beneficial for formation of mother - infant relationship, and for promotion the social, affective, and cognitive developments of their children.

• 한국수학사학회지
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• 제17권1호
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• pp.1-14
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• 2004

Iksan(翼算) written by Lee Sang Hyuk(李相赫, 1810∼\ulcorner) is unique among mathematical books published in Chosun Dynasty since it is the only book which accomplishes the conceptualization of theory of equations if not that of mathematics itself. We investigate its process by his other publications and mathematical interaction with Nam Byung Gil(南秉吉, 1820∼1869).