• International journal of advanced smart convergence
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• v.8 no.2
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• pp.204-210
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• 2019

Mobile Crowd Computing is one of the most efficient and effective way to collect the Electronic health records and they are very intelligent in processing them. Mobile Crowd Computing can handle, analyze and process the huge volumes of Electronic Health Records (EHR) from the high-performance Cloud Environment. Electronic Health Records are very sensitive, so they need to be secured, authenticated and processed efficiently. However, security, privacy and authentication of Electronic health records(EHR) and Patient health records(PHR) in the Mobile Crowd Computing Environment have become a critical issue that restricts many healthcare services from using Crowd Computing services .Our proposed Efficient Multi-layer Encryption Framework(MLEF) applies a set of multiple security Algorithms to provide access control over integrity, confidentiality, privacy and authentication with cost efficient to the Electronic health records(HER)and Patient health records(PHR). Our system provides the efficient way to create an environment that is capable of capturing, storing, searching, sharing, analyzing and authenticating electronic healthcare records efficiently to provide right intervention to the right patient at the right time in the Mobile Crowd Computing Environment.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.21 no.4
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• pp.137-147
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• 2011

Because of the convergence between Internet and broadcast communication, users are able to use multimedia contents anytime. In addition, with the change of existing one-way service to two-way service, the provider can offer efficient and useful broadcast communication. However, As multimedia contents is provided by STB, it can validate only end-node STB. Thus, this method is limiting possibilities of individual service. Also, providers' STB are different, so problem of compatibility is emerging as an issue. Therefore, in this paper we proposed STB virtualization based enhanced IPTV user authentication system to improve individual authentication and compatibility of services.

• International Journal of Internet, Broadcasting and Communication
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• v.13 no.2
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• pp.60-66
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• 2021

Blockchain is a technology that enables trust-based consensus and verification based on a decentralized network. Distributed ID (DID) is based on a decentralized structure, and users have the right to manage their own ID. Recently, interest in self-sovereign identity authentication is increasing. In this paper, as a method for transparent and safe sovereignty management of data, among data pseudonymization techniques for blockchain use, various methods for data encryption processing are examined. The public key technique (homomorphic encryption) has high flexibility and security because different algorithms are applied to the entire sentence for encryption and decryption. As a result, the computational efficiency decreases. The hash function method (MD5) can maintain flexibility and is higher than the security-related two-way encryption method, but there is a threat of collision. Zero-knowledge proof is based on public key encryption based on a mutual proof method, and complex formulas are applied to processes such as personal identification, key distribution, and digital signature. It requires consensus and verification process, so the operation efficiency is lowered to the level of O (log_eN) ~ O(N²). In this paper, data encryption processing for blockchain DID, based on zero-knowledge proof, was proposed and a one-way encryption method considering data use range and frequency of use was proposed. Based on the content presented in the thesis, it is possible to process corrected zero-knowledge proof and to process data efficiently.

• Cross-Cultural Studies
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• v.37
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• pp.267-286
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• 2014

The purpose of this study is to improve the writing skills through activities to read and summarize the internet children newspaper article. The subjects of study are the college students of A2-B1 level in the French writing classes. The range of study was as follows: - As the previous activity of writing, activities of teaching and learning of vocabularies to comprehend the internet children newspaper article. - learn about the rules of summary - writing the summary The children's newspaper used in this study has the advantage that can increase the learning motivation of learners as having a topicality by itself and a level of easy language. The summary activities can be called a comprehensive activities of teaching and learning that combine the critical reading ability that can distinguish important information and secondary one with the creative writing ablility that can reconstruct one's own style from the selected content. In addition, the summary assists the understanding of a text and is a help to its memory. It is the strategy of reading comprehension and also is simultaneously the strategy of writing that can write with one's own vocabulary by newly structuring the text. The results of this study will provide a vitality for the education environment and field of study of French language that have been neglected the writing ability. Moreover it will be the motivation to propose a way of a balanced French language communication to our French language learners weighted on oral communication.

• Knowledge Management Research
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• v.9 no.4
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• pp.143-156
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• 2008

The main purpose of this study is to suggest a way that how government innovation ecosystem can be successfully managed by applying neuro-cybernetics approach. Innovation ecosystem is not a rare phenomenon around us. Especially national innovation managed by government relies on heavily innovation ecosystem. Unfortunately discussions of successful management of this ecosystem are rare. This study strongly urged necessity of such management by observing the case of introduction of CDMA mobile communication technology in Korea. Neuro-cybernetics was suggested as one alternative approach for the such management.

• Korean Journal of Human Ecology
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• v.16 no.6
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• pp.1131-1140
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• 2007

The purpose of this study is to investigate the effect of parenting behavior and parent-child communication on internet use among school-aged children. The subjects were 215 children whose grade are 3rd and 5th selected from an elementary school in Incheon. The statistics used for this data were t-test, one-way ANOVA(Duncan's test), and stepwise regression. The findings from the present study suggested that academic achievement and birth order turned out to be significant variables on children's internet use, except for sex and grade. Results of the stepwise regression analyses that the etiologic model of this study was more proper, and parenting behavior is more effective variable than parent-child communication in predicting internet use among school-aged children. Implications based on this study are as follows; In order to decrease the degree of school-aged children's internet use, parents should do less permissive parenting behavior and problematic communication with their children.

• English Language & Literature Teaching
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• v.13 no.4
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• pp.211-231
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• 2007

Communication anxiety (CA) in L2 has been identified as one of the important predictors of determining success in the attainment of L2 communication competence. L2 professionals have attempted to explicate its nature in L2, but seemingly failed to achieve the goal. This is probably because they have tended to rely on studies dependent on the use of surveys, which are usually constructed on the basis of their own perspectives rather than L2 students' on CA. To solve this problem, some L2 professionals have utilized diverse research methods that can gather opinions directly from L2 students who are the main constituent in L2 learning; regretfully, they have barely listened to L2 students' voices about controlling CA in L2. This descriptive study explored the nature of CA and the way of controlling it by analyzing data from 57 Korean EFL undergraduates who voluntarily responded to the oral interview questions. The findings of this study pointed out that CA in L2 negatively influenced L2 performance. However, it seemed to have the potential to promote L2 learning. Provided are some important implications that can assist L2 teachers to help their students control CA by maximizing the positive nature of CA.

• Journal of Families and Better Life
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• v.9 no.1 s.17
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• pp.27-44
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• 1991

The purpose of this study is to investigate the relationship between communication pattern and conflict between old parents and their adult children. For this purose, 380 adult children are surveyed therefore the answers of survey are described by adult children only. The number of old parents turn to be 230 old fathers and 301 old mothers respectively, there numbers have included the case both parents are alive. The data were analysed several method with SPSS and the methods used for the analysis are Factor analysis, one way ANOVA, Scheffe-Test, Pearson's Correlation, Multple Regression. The results of this study are summarizd as follows ; 1) Old parents's communication patterns differ each other and under many variables. 2) In the conflicts between old parents and adult children differ each other and under many variables, too. 3) The relationship between communication patterens and conflict between old parent and adult children turn to be as follows : Two communication styles ie, the autoritarian style and insincere style increse conflicts. Frendly style have negatve affect to conflicts and decreses the conflicts. Sacrifice style is turn to have slightly affect the conflict.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.9 no.6
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• pp.1316-1322
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• 2005

Specially, though electronic commerce and electron signature technology through internet rose, PKI (Public Key Ifrastructure) is one of technologies. PKI brought several kind of new standards in encryption base technology. In spite of several kind of standardizations consist lively, shortcoming of solutions that apply PKI is expensive and slow. If main interest of encryption technology including PKI is the fast speed and security that improve, this is very serious problem. The various kinds alternatives about these problem are presented. But, we must consider about replace expense and stability etc. still. So, I propose that use suitable encryption policy by method to solve such problem. I improved some problems of existent PKI structure. Subject of this treatise designs and embody communication component could use easily and simply short message communication or simplicity way encryption communication.

• Journal of Family Relations
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• v.21 no.2
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• pp.97-127
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• 2016

Objective: This study explored benefits of a relationship-focused intervention to enhance marriage communication designed for multicultural married couples and changes that occurred in the way the program's participants communicated with one another. Method: The intervention program was implemented on six married multicultural couples (and six other couples as a control group), and their communication, conflict resolution, and adaptation before and after the intervention were examined. In addition, the researchers kept observation journals to understand the changes in the manner in which the married multicultural couples communicated with their spouse and examine their perception about participating in the program; further, we conducted post-program interviews with the participants after the completion of the program. Results: The results of this study are as follows: (1) the experiment group made more progress in improving couple communication, resolving marriage conflicts, and adapting as a married couple than the control group in a statistically significant manner in both preand post-program tests, and (2) the study confirmed through qualitative analysis that the program made positive contributions to improving the couples' abilities to have conversations and resolve conflicts, as well as their intimacy. Conclusion: Based on these results, implications for further research and practices were discussed.