• Journal of the Chungcheong Mathematical Society
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• v.24 no.2
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• pp.345-349
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• 2011

In this work, we find the genera of arithmetic subgroups $\langle{\Gamma}_{\Delta}(N),{\Phi}\rangle$ of $GL_2^+(\mathbb{R})$ generated by congruence subgroup ${\Gamma}_{\Delta}(N)$ and the Fricke involution $\Phi$.

• Journal of Industrial Convergence
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• v.11 no.1
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• pp.1-13
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• 2013

In this study, I tried to study whether the congruence between consumer's brand image and self image influences consumer's brand preference. the outcomes of the study suggest that the consumers purchase the image of the brands, rather than the products themselves. Thus, the firm must develop the brand image focused on consumer's preference.

• Korean Journal of Mathematics
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• v.27 no.2
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• pp.425-435
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• 2019

The notion of multiplier for an almost distributive lattice is introduced, and some related properties are investigated. Moreover, we introduce a congruence relation ${\phi}_{\alpha}$ induced by ${\alpha}{\in}L$ on an almost distributive lattice and derive some useful properties of ${\phi}_{\alpha}$.

• Journal of applied mathematics & informatics
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• v.39 no.3_4
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• pp.405-417
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• 2021

The aim of this paper is to provide the residues of Euler polynomials modulo p² in terms of alternating sums of like powers of numbers in arithmetical progression. Also, we establish the analogue of a classical congruence of Lehmer.

• Journal of the Korean Mathematical Society
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• v.59 no.4
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• pp.685-697
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• 2022

Recently, Gireesh, Shivashankar, and Naika [11] found some infinite classes of congruences for the 3- and the 9-regular cubic partitions modulo powers of 3. We extend their study to all the 3^k-regular cubic partitions. We also find new families of congruences.

• Journal of Korean Academy of Nursing
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• v.42 no.1
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• pp.85-94
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• 2012

Purpose: This study was done to examine the effects of nurses' perception of servant leadership on leader effectiveness, satisfaction and promoting additional effort. The focus was the mediating effects of leader trust and value congruence. Methods: Data were collected from 361 RN-BSN students and nurses participating in nationally attended in-service training programs. Data were analyzed using descriptive statistics and structural analysis with SPSS 17.0 windows program and Amos 7.0. Results: Direct effects of nurses' perception of servant leadership were negative, but mediating effects of trust and value congruency were positively correlated with leader effectiveness, satisfaction and additional effort, that is servant leadership should be effective through mediating factors. Conclusion: The study results indicate that if the middle managers of nurses can build leader trust and value congruency between nurses through servant leadership, leader effectiveness, satisfaction and additional effort on the part of the nurses could result in a positive change in the long term.

• Journal of the Korean Society of Clothing and Textiles
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• v.44 no.3
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• pp.556-571
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• 2020

This study predicts consumer preference for social clothing at work, excluding uniforms using the self-product congruence theory that also establishes a model to predict the preference for recommended products that match the consumer's own image. A total of 490 Korean male office workers participated in this study. Participants' self-image and the product images of 20 apparel items were measured using nine adjective semantic scales (namely elegant, stable, sincere, refined, intense, luxury, bold, conspicuous, and polite). A model was then constructed to predict the consumer preferences using a neural network with Python and TensorFlow. The resulting Predict Preference Model using Product Image (PPMPI) was trained using product image and the preference of each product. Current research confirms that product preference can be predicted by the self-image instead of by entering the product image. The prediction accuracy rate of the PPMPI was over 80%. We used 490 items of test data consisting of self-images to predict the consumer preferences for using the PPMPI. The test of the PPMPI showed that the prediction rate differed depending on product attributes. The prediction rate of work apparel with normative images was over 70% and higher than for other forms of apparel.

• The Journal of the Korea Contents Association
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• v.4 no.1
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• pp.40-48
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• 2004

In a study involving 52 large organizations in the savings institutions industry, the relationship between information systems technology(IT) structure and competitive strategy was investigated based on structural contingency theory. Two dimensions of IT structure and two types of competitive strategy were employed to test a contingency mood. It was found that enhanced congruence between IT structure and competitive strategy was associated with higher competitive advantage. The structural dimension significantly associated with the "defender" strategic stance was more centralized and more integrated application of IT, while the structural dimension significantly associated with "prospector〃 positioning was more decentralized and less integrated application of IT.lication of IT.

• Knowledge Management Research
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• v.10 no.1
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• pp.71-100
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• 2009

Recently, many of organizations build up their performance measurement system (PMS) to measure their knowledge management performance. However, the system that doesn't well reflect the organization's strategies as well as surroundings could obstruct their performance improvement, instead. Therefore, It is really important to establish the PMS to reflect organization's surroundings and strategies. The purpose of this study is to make a diagnosis of a performance measurement practice of a domestic university's knowledge management. To serve this research purpose, we examine the uptight performance index and PMS from existing references. And we diagnose the specific practices and maturity rates of measuring performances, and the recognition of the performance index at "D" university recently adopting balanced scorecard to performance evaluation through the survey on academic affairs committee members, performance evaluation committee members, and administration members. The method analyzing data from the survey is a gap analysis which includes alignment analysis, congruence analysis, consensus analysis, and confusion analysis. We make a diagnosis of performance measurement practices at "D" university, raise several points of this performance measurement system, and present the improvement plans from these problems.

• Proceedings of the Technology Innovation Conference
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• 1999.06a
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• pp.140-174
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• 1999

This study proposed the model of research describing the positive impact of fitness between career orientations and reward systems on the performance of R&D professionals. To prove the propositions of the model, a questionnaire survey was conducted 204 professionals in 19 R&D research institutes related with electronics and communication industries provided answers for the questionnaire. The results of the survey were summarized in the following. 1) Career orientations of R&D professionals can be categorized into three dimensions : managerial, technical/professional, and project orientation. 2) The rewards consist of four dimensions : financial, social status, job content, and professional reward. 3) The age and tenure of R&D professionals has the negative impact on the project orientation. 4) The education level of R&D professionals has the positive impact on the professional orientation. 5) The sex was found as insignificant variable career orientation. 6) The person with strong prefers social status rewards to other rewards, the professional orientation is prefer to professional rewards, and the project orientation is prefer to job content rewards. 7) For the professionals with professional and project orientation, the congruence with each reward delivered positive impact on job satisfaction, job involvement, and organizational commitment. However it created negative impact on turnover intention and job stress.