• 정보보호학회논문지
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• 제17권3호
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• pp.17-25
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• 2007

서명권한의 위임은 다양한 환경에서 요구되는 암호학적 서비스이다. Mambo 등은 서명권한 위임에 대한 해결방법으로 프록시 서명기법을 제안하였다. 프록시 서명기법이 제안된 후, 한 명의 서명자가 자신의 권한을 한 사람의 프록시 서명자에게 위임하는 기본적인 형태의 위임이 아니라 보다 일반적인 위임 구조를 제공하기 위한 프록시 서명기법들이 제안되었다. 모든 구성 가능한 위임 구조를 포괄할 수 있는 개념으로 위임 네트워크가 Aura에 의해 제안되었고, 이후 Chow 등은 ID기반의 위임 네트워크를 제안하였다. E는 위임 네트워크에서 발생하는 위임의 개수라고 하고 N은 사용자의 개수라고 하자. 계산 복잡도의 관점에서 Chow 등의 위임 네트워크는 E번의 페어링 연산과 N번의 스칼라 곱셈 연산이 수행된다. 본 논문에서는 E번의 페어링 연산만으로 Chow 등이 제안한 것과 동일하게 동작하는 위임 네트워크를 제안한다. 또한 제안하는 위임 네트워크의 구성을 변형함으로써 N번의 페어링 연산이 요구되는 위임 네트워크를 구성한다.

• 한국과학교육학회지
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• 제42권2호
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• pp.177-184
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• 2022

This article aims to explain the concept and characteristics of the 'Intelligent Science Lab', which is being promoted nationwide in Korea since 2021. The Korean Ministry of Education creates a master plan containing a vision for science education every five years. The most recently announced '4th Master plan for science education (2020-2024)' emphasizes the policy of setting up an 'intelligent science lab' in all elementary and secondary schools as an online and offline space for scientific inquiry using advanced technologies, such as Internet of Things and Augmented and Virtual Reality. The 'Intelligent Science Lab' project is being pursued in two main directions: (1) developing an online platform named 'Intelligent Science Lab-ON' that supports science inquiry classes, and (2) building a science lab space in schools that encourages active student participation while utilizing the online platform. This article presents the key features of the 'Intelligent Science Lab-ON' and the characteristics of intelligent science lab spaces newly built in schools. Furthermore, it introduces inquiry-based science learning programs developed for intelligent science labs. These programs include scientific inquiry activities in which students generate and collect data ('data generation' type), utilize datasets provided by the online platform ('data utilization' type), or utilize open and public data sources ('open data source' type). The Intelligent Science Lab project is expected to not only encourage students to engage in scientific inquiry that solves individual and social problems based on real data, but also contribute to presenting a model of online and offline linked scientific inquiry lessons required in the post-COVID-19 era.

• 기본간호학회지
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• 제14권3호
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• pp.361-370
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• 2007

Purpose: With the increasing opportunities for students to transfer into nursing from other departments or after graduation, it is important to examine how these students adapt to clinical work in the hospital setting after graduation. This study was done to describe the adaptation experience of older graduate nurses in hospital settings and to understand the meanings and search the nature of their experience. Method: For this study, the participants were 6 nurses who entered nursing after having graduated from college or university in another field. The data were collected through in-depth interviews from March to April 2007 and analyzed by Colaizzi's phenomenological method. Results: The essential themes of the adaptation experience for older graduate nurses were the following 6 categories: taking responsibilities for the expected role according to one's age, following the rules of senior-junior hierarchy, being ambivalent about one's older age, expanding one's support system, getting rid of the concept of age difference and establishing the expected position appropriate for one's career. Conclusion: For older graduate nurses, interpersonal relationship factors were more important than work related factors. Therefore, it is important to create a more flexible nursing culture to ease the adaptation of these older graduate nurses.

• 한국생활과학회지
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• 제21권3호
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• pp.423-437
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• 2012

The purpose of this study was to explore the effects of death education, focusing on death orientation and suicidal ideation, among college students majoring in social welfare. Participation in this study was voluntary. Participants were divided into two groups; an experimental group and a control group, totaling fourteen participants in each group. In exploring the effects of death education, the experimental group was subjected to a total of seven independent sessions dealing with death education over a period of four weeks. As a result of the death education, scores of death orientation and suicidal ideation in the experimental group were significantly lower in the control group. College students majoring in social welfare in the experimental group demonstrated greater comfort with the concept of death, as well as death being the prolongation of one life and new hope for an ensuing life. The experimental group demonstrated a greater appreciation for life, more confidence in setting future goals for their lives, and an awareness of, and ability to deal positively with suicidal tendencies in themselves and others. This research demonstrated a strong practical benefit associated with death education and suicidal ideation awareness.

• The Journal of Asian Finance, Economics and Business
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• 제7권12호
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• pp.885-894
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• 2020

This paper aims to provide a review concept regarding the relationship between corporate governance and corporate sustainability in Indonesia. This paper examines the mechanisms and guidelines for implementing good corporate governance. This research used the literature review method and explores some effective corporate governance principles such as transparency, accountability, responsibility, independence, fairness, and equality to achieve business sustainability in Indonesia's setting. The results show that good corporate governance regulation in Indonesia has been improved, but the enforcement is still needed to be optimized because good corporate governance will positively impact corporate sustainability. Thus, sustainability requires more corporate innovation because sustainability is about how a company can create profits and value-added to society through corporate social responsibility (CSR) programs and how the company can contribute to the preservation of nature and the environment. In Indonesia, the board of directors, the board of commissioners, and the audit committees are positively related to CSR disclosure. Thus, leadership and management efforts are crucial. However, to comprehensively support the synergy of implementing good corporate governance, we need the role of the state, the business community, and society. This study provides important insights into the implementation of good corporate governance in achieving corporate sustainability in Indonesia.

• 한국IT서비스학회지
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• 제14권2호
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• pp.231-251
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• 2015

User Experience (UX) and Experience Innovation have been emphasized in the process of New Product Development (NPD). However, previous works which were conducted within the theme of UX mostly focused on the fragmentary aspects of user's experience in a specific usage-context only. For this reason, it is always hard to deal with questions on how to define the abstract concept of UX and how to apply this important keyword in actually NPD process both for satisfying potential users and for setting a market strategy. To address this issue, we focused on the fact that UX has an aspect of composition like pattern and structure. It means that we can understand the context of UX with clarifying characteristics of relations between user and experiential objects. Also, we referred to two sub-concepts of Complexity, Density and Centrality, as representative characteristics of relations in usage-context. Based on this theoretical background, we attempted to find UX design principles and concepts for NPD from the actual example cases of products and services in the real market. From these whole study process, we expect that our findings could have implications for academic and practical areas within the theme of Human-Centered Innovation.

• 디지털산업정보학회논문지
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• 제5권2호
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• pp.29-37
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• 2009

Recently, the structure of simulation environment is important issue in all fields. In case of the training for operating the machines which are costly such as airplanes or spaceships, simulators could be helpful for decreasing the costs and training effects by simulating real situation. When we get the driving license, too many peoples are waiting for their turns because of limited cars and testing spaces in Korea. To solve this problem, we've designed and developed the basic design for the simulators. We suggested the Computer 3D Simulation Model for practice of a drives's license. The concept of this simulator was from a 3D Racing-game which suit for driving exercise. We provide users with handle-controlled simulation setting in order that users feel reality as if they drive really through this simulator. We also use 'force-feedback' system which give handle vibration in case users collide against obstacles or exceed the line since users can absorb the simulation program and feel the sense for the real. This paper is the study about modeling the driving exercise model made use of 'computer 3D simulation', and producing and utilizing the simulator through this modeling.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2009년도 학술대회
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• pp.745-748
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• 2009

콘텐츠의 불법적인 이용을 막기 위해 CAS(conditional access system) 혹은 DRM(digital rights management)을 사용해 왔다. 하지만 이들 방법은 콘텐츠의 이동 및 재생을 제약함으로써 정당한 콘텐츠 사용자에게 조차도 콘텐츠 이용에 큰 불편을 초래해 왔다. 최근 디지털 홈 환경이 도래하고 디지털 홈 환경에서의 자유로운 콘텐츠 이용에 대한 요구사항이 증대됨에 따라 본 논문에서는 디지털 홈에 도메인 개념을 도입하여 DRM 이 적용된 콘텐츠에 대해 보다 더 쉽게 콘텐츠를 공유하고 이용할 수 있는 방법을 제안한다. 기존의 DRM이 제공하던 라이선스 범위 안에서 도메인 라이선스를 설정함으로써 콘텐츠의 유출 및 불법적인 이용을 막을 수 있다.

• 한국보건간호학회지
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• 제12권1호
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• pp.90-102
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• 1998

The primary health care(PHC) movement officially began in 1977 when the 30th World Health Oranization(WHO) Assembly adopted a resolution accepting the goal of attaining a level of health that permitted all citizens of the world to live socially and economically productive lives. As a WHO member nation, Korea has endorsed primary health care as a strategy for achieving the goal of Health For All by the Year 2000. However, PHC, with its empasis on broad strategies, community participation, self reliance, and a multidisciplinary health care delivary team, is not the primary strategy for improving the of Korean. The Neuman's systems model has been described as a grand nursing theory. A grand nursing theory consists of a comprehensive conceptual framework that defines broad perspectives for practice. This model is an example of a conceptual framework that provides structure for development and analysis of an individual or group of patients in the community or in an oranization. One of the model's strength is that it can be useed ina variey of setting. So The Neuman's model is used a nursing process format for community health nursing. The Neuman's model is fully congruent with concept and philosophy of today's PHC.

• 한국실내디자인학회논문집
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• 제17호
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• pp.120-127
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• 1998

Because of the advancements of these modern tecniques and new materials being developed expressionally diverse methods of utilizing metal and glass are being discovered. modern architects in order to add an open-hearted and homogeneous concept into their endeavors to create a transparent space are inclining to the many expressive characteristics which glass and metal provide. Furthermore the products of these endeavors are bringing forth various key elements in respect to useage for today's interior spaces, Due to differing methods of setting up the interior sphere is fastly becoming more generous than viewpoints of the past. Through the use of organization moreover from the former geometric school of thought curvilinear and active organization/ expressive inclinations are becoming diversified. Thus in accordance with the diversifying methods of fixing glass for a sleek and reflective exterior and due to the influence of durability to these fixtures precision not just decoration is gradually becoming more in demand/ Hereupon this study enlightens from the standpoint of planninf for interior spaces through the utilization of glass and metal upon the key factors of expressive attributes and the possibilities which thusly arise. The purpose of this study is to apply these theories to an actual case model study and verify their validity.