• 대한치과의사협회지
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• 제57권8호
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• pp.448-455
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• 2019

This study aims to apply the Generalizability Theory (G-theory) for estimation of reliability of evaluation scores between raters on Patient Dentist Interaction. Selecting a number of raters as multiple error sources, this study was analyzed the error sources caused by relative magnitude of error variances of interaction between the factors and proceeded with D-study based on the results of G-study for optimal determination of measurement condition. The estimated outcomes of variance component for accuracy among the Patient Dentist Interaction evaluation with G-theory showed that impact of error was the biggest influence factor in students. The second influence was the item effect, and the rater effect was relatively small. The Generalizability coefficients for case1 and case2 which were estimated through the D- study were calculated relatively low.

• Interaction and multiscale mechanics
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• 제2권1호
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• pp.1-14
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• 2009

This paper proposes an interaction field concept based on the field theory of plasticity. Relative deformation between two arbitrary scales, e.g., macro and micro fields, is defined which can be implemented in the crystal plasticity-based constitutive framework. Differential geometrical quantities responsible for describing dislocations and defects in the interaction field are obtained, based on which dislocation density and incompatibility tensors are further derived. It is shown that the explicit interaction exists in the curvature or incompatibility tensor field, whereas no interaction in the torsion or dislocation density tensor field. General expressions of the interaction fields over multiple scales with more than three scale levels are derived and implemented into the present constitutive equation.

• Bulletin of the Korean Chemical Society
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• 제16권10호
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• pp.952-957
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• 1995

In order to ease the treatment of anisotropic potential when developing the variational RRKM theory, we applied Fano-Racah's recoupling theory to the multipole-multipole interaction, resulting in the great simplification of the anisotropic potentials. The treatment appears as a generalization of Keesom transformation in case of dipole-dipole interaction and provides us with great insights to the characteristics of tensorial interactions in the multipole-multipole interaction system.

• Interaction and multiscale mechanics
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• 제2권1호
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• pp.15-30
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• 2009

The theoretical framework of the interaction fields for multiple scales based on field theory is applied to one-dimensional problem mimicking dislocation substructure sensitive intra-granular inhomogeneity evolution under fatigue of Cu-added steels. Three distinct scale levels corresponding respectively to the orders of (A)dislocation substructures, (B)grain size and (C)grain aggregates are set-up based on FE-RKPM (reproducing kernel particle method) based interpolated strain distribution to obtain the incompatibility term in the interaction field. Comparisons between analytical conditions with and without the interaction, and that among different cell size in the scale A are simulated. The effect of interaction field on the B-scale field evolution is extensively examined. Finer and larger fluctuation is demonstrated to be obtained by taking account of the field interactions. Finer cell size exhibits larger field fluctuation whereas the coarse cell size yields negligible interaction effects.

• Korean Journal of Acupuncture
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• 제28권3호
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• pp.127-140
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• 2011

Objectives : The aim of this study is to regulate the medical meaning about Kwan [self-denial] which is used by Jeongkyeok [reinforcing the weak body part] and Seungkyeok [consolidating the weak body part while inducing cathartic action of comparatively stronger body part] of Saam Acupuncture in common. Methods : This study generalized the method of understanding 'The Five Viscera Interaction' in Oriental Medicine from the perspective of literature and considering human organs in the medical context. Results and Conclusions : 1. There existed 'The Five Viscera Interaction' theory regulating the correlation between the five viscera headed by "Nankyeong" in the traditional Oriental medicine. The five viscera interaction theory was used as the standard of judging the symptom and the prognosis of a disease in the history of Oriental medicine and further used even as the method of preventing and treating diseases. 2. The treatment included in "Biyebaekyobang", a medical book in the period of Goryeo, can be rated as the most developmental form of medical theory which applied 'the five viscera interaction theory' to clinical treatment. The author of "Biyebaekyobang" managed to break away from the schematism of the five viscera interaction through the method of treating two internal organs using one organ treatment and applying the individually different relations between organs. "Biyebaekyobang" shows close similarities to Saam Acupuncture. 3. The organs handled in Saam Acupuncture has a significance in that it put forward the part which had not been aggressively dealt with in medical history up until then.

• 대한화학회지
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• 제58권6호
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• pp.528-534
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• 2014

어떤 이성분계용액에서는 상한임계용액온도와 하한임계용액온도가 동시에 나타나는 원형모양의 온도-조성 상도를 보인다. 이러한 현상은 분자간 특정상호작용이 존재하는 경우 나타나는 것으로 알려져 있다. 특정상호작용을 묘사하는 방법에는 여러 가지가 있다. 본 연구에서는 특정상호작용의 총수가 이항분포에 따라 분포한다고 가정하였다. 이 경우 특정상호작용을 Regular 용액이론, Quasichemical 이론 그리고 Flory-Huggins 격자이론에 적용하였을 때 원형모양의 온도-조성 상도를 보이는 경우에 대한 정확한 수학적인 조건을 유도하였다. 그리고 매개변수들이 온도-조성상도에 미치는 영향을 조사하였고, 물-니코틴에 대한 온도-조성상도를 계산하여 실험값과 비교하여 보았다.

• 한국HCI학회논문지
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• 제6권1호
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• pp.17-20
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• 2011

Fred.E Fiedler는 상황 리더쉽 이론에서 사회 문화적 특성에 따른 Work-style을 근거하여 문화집단을 과업지향적인(Task-oriented) 집단과 관계지향적인 (Relationship-oriented)집단으로 나눈다. 본 연구는 제품사용에 있어 Task를 수행하는 성향의 정도가 제품 인터렉션에 영향을 미칠 것이라는 가설을 세우고, 이를 검증하기 위하여 Fred.E Fiedler의 상황 리더쉽 이론을 근거로 하는 LPC 실험결과의 성향 정도에 따른 제품 사용 인터렉션을 연구한다. Task-oriented 성향과 가까운 문화권 집단은 제품사용에 있어 의도한 목적을 단 시간 빠르게 수행(usability)하는 퍼포먼스의 인터렉션을 중시하고, Relationship-oriented 성향과 가까운 문화권 집단은 제품사용에 있어 목적을 수행(usability)할 때 의미부여(refelctive)적인 측면을 더 중요하게 생각할 것이라는 가설을 증명하기 위한 실험으로 비교적 Task의 의미부여(refelctive)가 동등하고 빈번하게 잘 일어나는 기기인 모바일 단말기 사용에 있어 이 두 집단의 주소록의 주기능과 부기능 사용행태를 비교하고 데이터를 수집, 분석하여 가설을 검증한다. 이 연구결과, 주소록 사용에 있어서 피들러의 상황이론에 의한 Task 수행성향은 모바일 단말기 인터렉션 사용에 영향과의 연관성은 다소 낮게 나타났으며, 관련하여 본 실험 도중 몇 가지 흥미로운 패턴을 발견할 수 있었는데, 이를 기반으로 향후 모바일 단말기의 주소록의 사용자 지향적인 디자인 방향성에 대한 가이드라인을 제시하였다.

• 한국IT서비스학회지
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• 제22권6호
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• pp.103-114
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• 2023

In the post-pandemic era, colleges and students keep passion for learning online sine its unique advantages. This study explores how students' basic psychological needs drawn from self-determination theory, connect to interaction, and learning engagement in the context of online learning. While prior research explored students' intentions, digital interactions, and engagement in online learning, this study aims to come up with a united conceptual model drawing the three basic psychological needs and interaction and their effects on learning engagement. 178 response data collected through a questionnaire survey, were analyzed using PLS-SEM. Findings indicate that online learning interaction enhances intrinsic motivation, leading to higher learning engagement. Autonomy emerges as the most influential psychological need on learning engagement. This study integrates self-determination theory with online learning interactions and engagement and offers practical insights. Future research should examine long-term outcomes and diverse student populations.

• 한국정보과학회논문지:시스템및이론
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• 제33권5호
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• pp.267-281
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• 2006

단백질-단백질 상호작용(PPI : Protein-Protein Interaction) 데이타는 생물체가 어떠한 메커니즘으로 생명을 유지하는지에 대한 정보를 담고 있다. 질병 연구나 신약 연구를 위해서 PPI 데이타를 이용한 많은 연구들이 이루어지고 있다. 이러한 PPI 데이타의 크기는 Yeast-two-hybrid, Mass spectrometry과 Correlated mRNh expression과 같은 방법들로 인하여 점차 그 증가량이 커지고 있다. 따라서 단백질-단백질 상호작용 데이타의 방대한 양과 복잡한 구조로 인하여 사람이 직접 분석하는 것은 불가능하다. 다행히도 PPI 데이타는 단백질은 노드로, 상호작용은 에지로 표현함으로써 전산학의 그래프 구조로 추상화될 수 있다. 본 논문에서는 방대한 단백질-단백질 상호작용 데이타를 연구자가 다양한 방법으로 손쉽게 분석할 수 있는 워크벤치(workbench) 시스템인 Proteinca (PROTEin INteraction CAbaret)에 대하여 소개한다. Proteinca는 다앙한 데이타베이스의 PPI 데이타를 그래프이론 기반의 분석 기능들을 제공하며, 그래프로 가시화하여 사용자가 직관적으로 이해할 수 있도록 도와준다. 또한, 중력 모델 기반의 간략화 방법을 제공하여 사용자에게 중요 단백질 중심의 가시화를 제공한다.

• 지식경영연구
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• 제16권1호
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• pp.55-69
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• 2015

Employees' knowledge contribution is one of the critical activities that maximize internal capability of the firm and facilitate organizational innovation by sharing scattered internal knowledge. This study integrates antecedents of knowledge contribution based on the theory of planned behavior(TPB). Utilizing TPB as a theoretical framework, expected reciprocity, subjective norm, and self-efficacy's direct effects on knowledge contribution were assessed. Additionally, interaction effects among expected reciprocity, subjective norm, and self-efficacy were explored. As the results of analysis, all the antecedents significantly influenced knowledge contribution. Interestingly, when the knowledge source's self-efficacy was high, the influence of expected reciprocity on knowledge contribution was decreased. Similarly, when the knowledge source's subjective norm for knowledge contribution was high, expected reciprocity's effect was weakened. This implies that when facilitating knowledge contribution, interaction effects among antecedents of knowledge contribution, as well as their direct effects, should be considered.