• Archives of design research
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• v.17 no.4
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• pp.353-364
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• 2004

In this thesis, I will look into how contemporary Korean Design has changed and been alienated from tradition as well as distorted history (chapter 2, 3); point out what the problem is in finding out the cultural identity of the field of design(chapter 4); and finally, I will present a new starting point for independent discussion regarding the direction of Korean design (chapter 5). The purpose of this thesis is to present an opportunity to reconsider the numerous irrationalities caused by an industrial view of design as an outdated paradigm and a cultural identity distorted by the leading policies of the contemporary political authority. In addition, by proposing a new direction to the following discussion on Korean design, it is my desire to examine a realistic plan for cultural discourse which is essential for Korean design in an information-oriented age.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.12 no.9
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• pp.4576-4598
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• 2018

In big data age, flexible and affordable cloud storage service greatly enhances productivity for enterprises and individuals, but spontaneously has their outsourced data susceptible to integrity breaches. Provable Data Possession (PDP) as a critical technology, could enable data owners to efficiently verify cloud data integrity, without downloading entire copy. To address challenging integrity problem on multiple clouds for multiple owners, an identity-based batch PDP scheme was presented in ProvSec 2016, which attempted to eliminate public key certificate management issue and reduce computation overheads in a secure and batch method. In this paper, we firstly demonstrate this scheme is insecure so that any clouds who have outsourced data deleted or modified, could efficiently pass integrity verification, simply by utilizing two arbitrary block-tag pairs of one data owner. Specifically, malicious clouds are able to fabricate integrity proofs by 1) universally forging valid tags and 2) recovering data owners' private keys. Secondly, to enhance the security, we propose an improved scheme to withstand these attacks, and prove its security with CDH assumption under random oracle model. Finally, based on simulations and overheads analysis, our batch scheme demonstrates better efficiency compared to an identity based multi-cloud PDP with single owner effort.

• Journal of Oriental Neuropsychiatry
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• v.30 no.3
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• pp.129-140
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• 2019

Objectives: The purpose of this paper is to report the results of applying philosophical counseling to Hwabyung. Methods: At the time of the medical examination, 15 minutes or more of philosophical counselling method based on self-identity was conducted if possible. Additionally, We applied Hwabyung treatment guidelines (acupuncture, herbal medicine, etc.) to the patient If diagnosed as necessary. We evaluated visual Analogue Scale (VAS), Hwabyung scale, and Symptom Checklist 90-Revision (SCL 90-R) at baseline, and reassessed VAS and Hwabyung scale after about two weeks of treatments. Results: After about two weeks of treatment and philosophical counselling, VAS was between 10 to 1-2 and Hwabyung scale from 59 to 48. Also, the problem of fragmentation in the patient's life process was insighted, and the viewpoint was changed. Conclusions: It is useful to combine Korean traditional medical treatment with philosophical counselling method based on self identity for patients suffering from the Hwabyung. To Hwabyung patient, the view of philosophical counselling of feminism which understands women in political and cultural contexts is helpful.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.31 no.6
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• pp.1115-1126
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• 2021

In this paper, we developed a mobile student ID providing a self sovereignty identity (SSI) which replaces the conventional plastic-type student ID that includes private information of a student such as a name, a student number, a facial photo, etc. The implemented mobile student ID solves the problem of exposing student's identity due to a loss or a theft of a plastic-type student ID, and it has a structure and process of FRANCHISE model which is developed by a concept of a decentralized Identity(DID) of a Blockchain, in which specialized for convenience as an electronic student ID through an application on a smart phone device. In addition, it protects student's privacy by controlling personal information on oneself. By using a smartphone, not only it easily identifies the student but also it expands to several services such as participation in school events, online authentication, and a student's exchange program among colleges.

• Korean Security Journal
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• no.43
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• pp.121-145
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• 2015

This study aims to define structural relations of security science majors' career satisfaction, career identity and career decision-making self efficacy. In addition, as confirming immediate effects, indirect effects as well as total effects, the study offers basic materials for reasonable career exploration and career program development. In order to achieve the research goals above, the study conducted a survey targeting a total of 239 college students specializing in security science and carried out a structural equation model analysis. Findings of the research are summarized as follows. First of all, major satisfaction turned out to have significant influences on career decision, career certainty and career interest. Second of all, the study found out that both relationship satisfaction and general satisfaction are significantly connected with career decision and career certainty. Third of all, social awareness appeared to have a significant influence on career interest. Fourth of all, the study learned that in terms of career decision and career certainty, they are all significantly related to problem solving, information collection and plan development. As for career interest, the study noticed how significantly if affects both problem solving and information collection. Fifth of all, major satisfaction was observed to have mediating effects on problem solving and information collection through career decision. Sixth of all, via career certainty, major satisfaction has mediating effects on problem solving as well as information collection. Seventh of all, when it comes to relationship satisfaction, it has mediating effects on problem solving, information collection and plan development through career interest. Eighth of all, career decision helps general satisfaction have mediating effects on problem solving and information collection. Focusing on the research results above, the study discussed implications in relation to security science including advices for any follow-up researches.

• Communications of the Korean Mathematical Society
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• v.11 no.3
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• pp.815-823
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• 1996

M. Kontsevich posed a problem on mapping class groups of 3-manifold that is if M is a compact 3-manifold with nonempty boundary, then BDiff (M rel $\partial$ M) has the homotopy type of a finite complex. Here, Diff (M rel $\partial$ M) is the group of diffeomorphisms of M which restrict to the identity on $\partial$ M, and BDiff (M rel $\partial$ M) is its classifying space. In this paper we resolve the problem affirmatively in the case when M is a Haken 3-manifold.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.4 no.2
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• pp.90-118
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• 1994

본 논문에서는 certificatoin-based 방식이 아닌 id-based방식이면서도 사용자가 자신의 비밀키를 선택할 수 있는 역설적인 id-based 방식을 제안한다. 제안한 방식은 Girault가 제안한 self-certified공개키 개념을 id-based방식에 적용한 것이다. 제안한 방식의 안전성은 고차잉여류 문제와 이산대수 문네에 기반을 두고 있다.

• The Mathematical Education
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• v.44 no.4 s.111
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• pp.525-534
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• 2005

The purpose of this study is to analyze difficulties in the density word problem solving process of seventh graders and to search for the way to increase their problem solving ability in the density word problem. The results of this study could help teachers diagnose students' difficulties involved in density word problem and remedy the understanding of the concept of density, algebraic expressions, and algebraic symbols.

• Journal of Korean Home Economics Education Association
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• v.29 no.4
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• pp.49-64
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• 2017

The purpose of this study was to explore ways to help improve adolescents' happiness by exploring the influences of emphatic ability and family strengths on happiness. This subjects were 514 middle school students living in Gwangju. Data were collected from self-report questionnaires and analyzed with SPSS 22.0 program. The major findings were as follows; First, the adolescents' emphatic ability('viewpoint', 'identity', 'emphatic interest'), family strengths('family respect and affection', 'role sharing and problem solving', 'communication and bonds', 'financial stability') and happiness scores were higher than the median(3.00). Emphatic ability('viewpoint', 'identity', 'emphatic interest', 'personal suffering') and family strengths('communication and bonds') showed significant difference according to gender. Second, the adolescents' happiness was influenced by 'family respect and affection', 'role sharing and problem solving', 'financial stability', 'personal suffering', 'identity', and 'emphatic interest'. Adolescents' happiness was explained about 39% by these variables. In other words, the higher family respect and affection, both higher role sharing and problem solving and higher financial stability, with lower personal suffering and higher identity and higher emphatic interest showed the higher happiness. These findings demonstrate the emphatic ability and family strengths in adolescents influence on the level of happiness. As such, in order to improve the happiness of adolescents, it is necessary to energize those programs focus on the forming healthy family relationships and to design finance assistance programs that could attempt to minimise financial gap. Additionally, it is necessary to develop programs aimed to enhance emphatic ability and continue such programs in homes as well as at schools. Finally, it is necessary to implement curriculum that may improve family strengths and emphatic ability, which have influenced on the happiness in adolescents. Since the subject "Technology & Home Economics" helps to enhance family strengths, emphatic ability and eventually amplifies the happiness, it is necessary to expand and reinforce it as well as to make it a mandatory subject.

• Bulletin of the Korean Mathematical Society
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• v.50 no.1
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• pp.233-240
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• 2013

In this paper, we use the elementary method and the theory of complex functions to study the computational problem of the fourth power mean of the generalized two-term exponential sums, and give two exact identities for them.