• IEIE Transactions on Smart Processing and Computing
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• v.2 no.2
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• pp.57-66
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• 2013

Wireless Sensor Networks consist of small, inexpensive, low-powered sensor nodes that communicate with each other. To achieve a low communication cost in a resource constrained network, a novel concept of signcryption has been applied for secure communication. Signcryption enables a user to perform a digital signature for providing authenticity and public key encryption for providing message confidentiality simultaneously in a single logical step with a lower cost than that of the sign-then-encrypt approach. Ring signcryption maintains the signer's privacy, which is lacking in normal signcryption schemes. Signcryption can provide confidentiality and authenticity without revealing the user's identity of the ring. This paper presents the security notions and an evaluation of an ID-based ring signcryption scheme for wireless sensor networks. The scheme has been proven to be better than the existing schemes. The proposed scheme was found to be secure against adaptive chosen ciphertext ring attacks (IND-IDRSC-CCA2) and secure against an existential forgery for adaptive chosen message attacks (EF-IDRSC-ACMA). The proposed scheme was found to be more efficient than scheme for Wireless Sensor Networks reported by Qi. et al. based on the running time and energy consumption.

• Journal of architectural history
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• v.4 no.2 s.8
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• pp.79-85
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• 1995

The main aim of the paper is to reveal what is the sign in art and architecture and what is difference between technology and art. By keeping in mind the suggestions of Heidegger's four different worlds, we become able to discern or elaborate on four different contexts of signs and modes in which the sign can work. World (1) is not conceptualized by selected relations of some of things' aspects with one another; rather, it is constructed by our sensory impressions. The sign of World (1) simply points to other objects occurring in the situation. World (2) emerges as an ontological term, and signifies, in terms of relations that are now brought systematically forth, the Being of those entities of World (1) which we naively perceive or take for granted. The sign of World (2) signifies a constructed world. World (3) is understood as the 'wherein' or environment of beings whose total activity is proven to be inseparable from their circumstances. The sign of World (3) is to recover the perspicuous silence of World (3). The World (4) is the ontological-existential understanding of worldhood. The sign of World (4) is to reveal the conspicuous silence of World (4). Finally, the paper suggests that art including architecture cannot be the sign of World (1), (2) but the one of World (3).

• Child Health Nursing Research
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• v.15 no.1
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• pp.42-52
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• 2009

Child is a being and provides the genetic continuity of parents and society, and therefore the fitness of these children for survival, growth and development towards reproduction, is of significance to parents and society. The aim of health care for high-risk children is not only to minimize or eliminate health problems, but also to optimize their fitness. Considering that the health care of children is influenced by available resources of parents and society, and sociocultural values and paradigms in a given environment of evolutionary adaptedness (EEA), child health care professionals need to understand factors affecting the optimal fitness of children with risks. This paper introduces a new integrated theory for health care in high-risk children, entitled, Health for Optimal Fitness of High-Risk Children. Five main components were identified with associate concepts or midrange theories affecting heath for optimal fitness of high-risk children; EEA, optimal fitness, health problems, investment resources, and anthropological values. It may provide an integrated perspective on health of high-risk children in both the proximately biomedical approach and ultimately evolutionary approach as optimizing their fitness. Further study is needed to develop substantial statements between components with existential examples.

• Journal of Korean Academy of Nursing Administration
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• v.2 no.2
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• pp.109-120
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• 1996

Nurses' job satisfaction was influenced by intrinsic factors and extrinsic factors. According to motivation theory, job satisfaction is determined by the degree of discrepancy between employees' expectation and rewards to employees that meet their basic needs. Spiritual wellbeing is a combination of religious wellbeing and existential wellbeing. It is not simply religious but one of the essentials among basic human needs. The purpose of this study was to examine the relationship between spiritual wellbeing and job satisfaction for nurses. The subjects consisted of 306 nurses who were employed in Wonju Christian Hospital. A positive relationship between spiritual wellbeing and job satisfaction was found. (r=.48, p<.001) Both spiritual wellbeing and job satisfaction were affected by the length of experience and by marital status and religion. The degree of satisfaction which was measured by one overall question and spiritual wellbeing were found to explain 35.63% of the total job satisfaction variance in regression analysis. From above the results, spiritual wellbeing can be considered as one of the important factors to improve job satisfaction for nurses. In order to improve job satisfaction, administrators must pay attention to the assessment of spiritual wellbeing for nurses who are employed in the hospital and develope programs to raise the level of spiritual wellness.

• Korean Institute of Interior Design Journal
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• v.24 no.1
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• pp.82-92
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• 2015

The philosophers think that the increase of loneliness in technological society is caused by the reduced feeling to some extent. They started to think the integral feeling in terms of existentialism away from Visualcentrism. It is apparent that in architectural design a concrete feeling(sense) out of Visualcentrism of modern architecture is reflected in a architecture. In particular, the architects such as Herzog & de Meuron, Steven Holl, Peter Zumthor, Kuma Kengo think that the existential value of the objects is important and would like to reflect the existence of materials on architecture. This study is to analyze the common points and different points regarding how in these works sensible experiences are approached. The results show that these works have common features containing escape from visual formativeness in the space, pursuit of locational connection, study on pure essence of the materials, and reflectance of the feeling of depth and motility. In addition, the actual beings of the materials for this feeling were mainly used and showed some difference in terms of the usage of local materials, natural environment, five senses of body. This study is important in the point of view that there are few researches that compared with the characteristics of architects' works while there were many researched that treated architecture as sensible view.

• Journal of Engineering Education Research
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• v.15 no.1
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• pp.53-60
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• 2012

On the grounds of Diane Vaughan's pioneering study into the Challenger Disaster, STS(Science and Technology Studies) scholars have recently argued that most engineers seldom face an ethical situation, in which the boundary between the ethical and the unethical is absolutely clear, and for which a serious moral decision such as "whistle blowing" is urgently needed. They have instead suggested that engineering ethics needs to address engineers' everyday routine practices, which, if accumulated, may have some impact upon the overall performance of the technological system. However, such studies have not completely resolved the tension between STS that emphasizes contextual elements in which the everyday practice of engineers are done, on the one hand, and engineering ethics that stresses individual engineer's moral decision of an existential kind, on the other. By discussing various works on the Challenger Disaster and related issues over technological risks, this paper attempts to establish an interface between STS and engineering ethics, and proposes some practical implications for the effective education of engineering ethics to engineering students.

• Journal of KIISE:Software and Applications
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• v.35 no.9
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• pp.529-537
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• 2008

Since concurrent software is hard to debug, the verification of such systems inevitably needs automatic tools which support exhaustive searching. Bounded Model Checking (BMC) is one of them. Within a bound k, BMC exhaustively check some errors in execution traces of the given system. In this paper, we introduce the tool that performs BMC for LTS, modeling language for concurrent programs. In this tool, a property is described by a FLTL formula, which is suitable to present the property with actions in a LTS model. To experiment with existential model checkers and out tool, we compare and analysis the performance of the developed tool and others.

• The Journal of the Korea Contents Association
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• v.20 no.5
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• pp.69-78
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• 2020

K/DA is a K-pop virtual idol based on the game character. This study analyzed the creation process, characteristics and existential meaning of virtual idols from the perspective of Pataphysics. K/DA is a character with both characteristics of game character and K-pop girl group. Also, virtual character and real idol share the body through motion capture and augmented reality(AR). As a result, K/DA crosses virtual and reality, and at the same time becomes a pataphysical subject that does not belong to either virtual or reality. K/DA is suggested a third zone where digital subjects will be located in the future.

• The Journal of the Korea Contents Association
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• v.15 no.9
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• pp.342-350
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• 2015

This study was done to explore the meaning and nature of life world on female college students with atopic dermatitis. The hermeneutic phenomenological method which was developed by Van Manen was used. Methods: The data were collected in two months through individual in-depth interviews using open-ended questions. A total of nine women with atopic dermatitis participated in the study. Results: Essential themes that fit into the context of the four existential grounds of body, other people, space and time were: rage against the body, the conflict with symptoms, unacceptable life, continued efforts. Conclusion: This study provides deep understanding of female students with atopic dermatitis who are relatively alienated from society. Based on the results of the study, health professionals could develop effective nursing interventions to improve quality of life of these women.

• The Transactions of the Korea Information Processing Society
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• v.4 no.12
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• pp.3150-3158
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• 1997

In the ATM networks, there are two method in traffic control as schemes to improve the quality of service; one is the reactive control after congestion and the other is the preventive control before congestion. The preventive control include the CAC(Connection Admission Control), the UPC(Usage Parameter Control), the NPC(Network Parameter Control) and the PC(Priority co ntrol). In this paper, we propose an efficient UPC algorithm that has a complex structure using the Jumping window algorithm within the Leaky Bucket algorithm. The proposed algorithm controls peak hit rate by the Leaky Bucket algorithm, then it does the traffic control to evaluate by the Jumping Window whether violates mean bit rate or not. As we assume On/Off traffic source model, our simulation results showed cell loss rate less than the pre-existential Leaky Bucket algorithm method, and it could decrease the demanded Bucket size.