• Journal of Information Processing Systems
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• 제15권4호
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• pp.797-819
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• 2019

Internet of Things (IoT) is the paradigm of network of Internet-connected things as objects that constantly sense the physical world and share the data for further processing. At the core of IoT lies the early technology of radio frequency identification (RFID), which provides accurate location tracking of real-world objects. With its small size and convenience, RFID tags can be attached to everyday items such as books, clothes, furniture and the like as well as to animals, plants, and even humans. This phenomenon is the beginning of new applications and services for the industry and consumer market. IoT is regarded as a fourth industrial revolution because of its massive coverage of services around the world from smart homes to artificial intelligence-enabled smart driving cars, Internet-enabled medical equipment, etc. It is estimated that there will be several dozens of billions of IoT devices ready and operating until 2020 around the world. Despite the growing statistics, however, IoT has security vulnerabilities that must be addressed appropriately to avoid causing damage in the future. As such, we mention some fields of study as a future topic at the end of the survey. Consequently, in this comprehensive survey of IoT, we will cover the architecture of IoT with various layered models, security characteristics, potential applications, and related supporting technologies of IoT such as 5G, MEC, cloud, WSN, etc., including the economic perspective of IoT and its future directions.

• 한국철학논집
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• 제28호
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• pp.35-60
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• 2010

본 논문은 환경윤리의 관점에서 자연(自然)과 인간(人間)과의 관계를 주역(周易)을 통해 살펴보았다. 주역(周易)은 환경문제의 바람직한 대안으로 자주 언급되는 문헌이다. 주역(周易)에서 자연(自然)과 인간(人間)의 관계를 어떻게 규정하는지를 살펴보고 인간(人間)이 어떻게 해야 하는가를 중심으로 논의를 전개하였다. 자연(自然)은 끊임없는 생성(生成)을 통해 소멸(消滅)하는 것을 보충한다. 지속적으로 새로운 것을 생성(生成)함으로써 소멸(消滅)해 가는 것을 보충하여 자연(自然)을 유지·보존한다. 자연(自然)의 입장에서는 소멸(消滅)과 생성(生成)이 균등하지만, 주역(周易)을 지은 성인(聖人)은 모든 것이 소멸(消滅)하는 것은 아닌가라는 우화(憂患)의식이 있었기 때문에 생성(生成)의 측면에서 주역(周易)을 서술하였다. 자연(自然)은 항상 스스로를 유지·보존하기 때문에 스스로를 파괴하는 일은 없다. 인간(人間)은 자연(自然)에 의해 만들어진 만물(萬物) 가운데 하나이지만 삼재 가운데 하나라는 지위도 부여받았다. 자연(自然)은 지위에 따른 책임과 의무도 부여하였지만 인간(人間)은 지위를 향유(享有)하기만 하고 책임과 의무를 다하지 않았다. 삼재(三才) 가운데 하나라는 지위만을 향유(享有)하였기 때문에 자연(自然)을 파괴하기에 이른 것이다. 인간(人間)은 지위를 향유(享有)하기도 해야 하지만 천지화육()天地化育을 돕는 책임과 의무도 다해야 한다. 자연(自然)을 파괴한 것은 인간(人間)이지만 자연(自然)의 생성(生成)을 도울 수 있는 것도 인간(人間)이다. 인간(人間)이 자연(自然)을 파괴한 것은 사욕(私欲)에 가려 자신의 책임과 의무를 망각했기 때문이다. 인간(人間)이 사욕(私欲)을 제거하고 부여된 책임과 의무를 성실히 이행한다면 자연(自然)은 다시 소생할 것이다.

• 로봇학회논문지
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• 제9권4호
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• pp.264-271
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• 2014

In this study, we have developed the humanoid joint modules which provide a variety of service while living with people in the future home life. The most important requirement is ensuring the safety for humans of the robot system for collaboration with people and providing physical service in dynamic changing environment. Therefore we should construct the mechanism and control system that each joint of the robot should response sensitively and rapidly to fulfill that. In this study, we have analyzed the characteristic of the joint which based on the target constituting the humanoid motion, developed the optimal actuator system which can be controlled based on each joint characteristic, and developed the control system which can control an multi-joint system at a high speed. In particular, in the design of the joint, we have defined back-drivability at the safety perspective and developed an actuator unit to maximize. Therefore we establish a foundation element technology for future commercialization of intelligent service robots.

• 대한의생명과학회지
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• 제21권4호
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• pp.165-171
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• 2015

Microbial pathogens are responsible for most of the rapidly-spreading deadly infectious diseases against humans. Thus, there is an urgent need for efficient and rapid detection methods for infectious microorganisms. The detection methods should not only be targeted and specific, but they have to be encompassing of potential changes of the pathogen as it evolves and mutates quickly during an epidemic or pandemic. The existing diagnostics such as the antibody-based ELISA immunoassay and PCR methods are too selective and narrowly focused; they are insufficient to capture newly evolved mutant strains of the pathogen. Here, we introduce a fresh perspective on some new technologies, including aptamers and next generation sequencing for pathogen detection. These technologies are not in their infancy; they are reasonably mature and ready, and they hold great promise for unparalleled applications in pathogen detection.

• 조명전기설비학회논문지
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• 제26권4호
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• pp.1-5
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• 2012

By using LED optical devices and improving the efficiency of optical devices as well as lighting apparatus for humans, LED lighting industry puts the purpose of manufacturing the main products related with information, electric, large-sized LCD BLU, automobile, shipbuilding, agriculture, medical treatment, environment, and telecommunications, etc. Moreover, the main products and the industrial lighting products are manufactured with fusion, as the result, LED lighting industry provides various effects as well as sources of technology based on practical use of LED technology in order to develop the industry from the perspective of the lower price, the higher efficiency, the higher function, the deeper reliance. In the future, not only the development of new LED technology but also the fusion and combination of digital IT technologies using wire-wireless communication, sensor, controller, and artificial intelligence will be expected to create new industrial fields.

• 한국콘텐츠학회논문지
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• 제15권2호
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• pp.552-566
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• 2015

이 논문은 오늘날 우리 사회는 물론 전 세계적으로 심각한 사회적 문제로 대두되는 자살을 기독교적 입장에서 다루고 있다. 자살에 대한 역사적인 입장은 용감하고 명예로운 것으로 생각하는 찬성과 신이 부여한 생명을 버리는 것은 옳지 않다는 반대로 나눠진다. 성경의 자살은 대부분 명예자살이지만 아우구스티누스의 사상의 영향으로 기독교 내에서 부정적으로 자리 잡다가 급기야 '자살자는 지옥행'이라는 생각에까지 이르게 되었다. 그렇다면 왜 사람들은 자살을 할까? 자살의 원인에 대한 학자들의 견해는 대략 생물학적 원인, 정신과적 원인, 그리고 사회학적 원인의 세 부류로 나뉜다. 논자는 이들 각각 혹은 복합적으로 자살에 기여한 것을 인정하면서도 결국은 이들에 대한 개인의 대응이 결정적 요인이라는 입장을 취했다. 자기 해석적 존재인 인간이 자신의 절망적 현 상황을 어떻게 받아들이느냐가 자살의 주된 요인으로 작용한다는 것이다. 이런 이해에 기초하여 논자는 자살 문제에 대한 본질적 해결책으로 자살에 대한 세 가지 새로운 인식과 실제적 제안을 제시함으로써 논문을 매듭지었다. 첫째, 인간의 생명은 하나님의 형상으로 지음 받았고, 하나님께 속한 고귀한 것이란 인식이 필요하다. 둘째, 기독교는 인간이 궁극적으로 영원한 생명이라는 희망의 미래를 조망할 수 있는 존재라는 인식이 필요하다. 셋째, 자살은 살인 금지규정에 대한 위반이지만 범죄행위라기보다는 치료가 필요한 질병이라는 인식의 확산 역시 필요하다. 이 일을 위해 기독교가 실제적으로 할 수 있는 것은 생명존중사상을 확산하는 캠페인을 진행할 뿐 아니라, 자살예방센터를 초 교파적으로 각 지역에서 운영하는 것이다.

• 한국실내디자인학회논문집
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• 제21권1호
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• pp.78-85
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• 2012

The relevance between organisms and their external environment covers everything including humans, natural and artificial surroundings, regarding which academic and scientific understanding has continued. Relevant elements established by inter-dependence between humans and environment and the unity of life should be translated from the perspective of a whole, not of unit elements or reduction. That is, a space is formed by its own program and assumes sustainable relevance based on interactions between internal and external spaces, not building an independent system. The present study aims to present the feasibility of a potential mutant space formed by invisible arenas between individuals and evolutionary space formation based on an ecological paradigm Accordingly, this study suggested that evolutionary attributes as the major power source of biological changes could verify the virtual multiplicity of a new space formation, and that the potential form generation of hybrid mutant space of emergence and infinite formative capability could be supported. The suggestions made here will hopefully contribute to extending applicability of evolutionary space generation in the field of space design. To derive the potential mutant forms from biological space, a preliminary study was conducted regarding the characteristics of evolutionary form generation. For the purpose of this study, three evolutionary perspectives of reproduction, mutation (variation) and selection were taken. First, the theory of evolution was defined and characterized. Also, the relevance between the characteristics generated and hybrid mutant space was analyzed to consider relevant characteristics. The present study helped to understand that the hybrid mutant space had an evolutionary space structure based on a biological paradigm. It was also found that the mutant space structure built by mutant polymorphism assumed a systematic correlation between space and environment.

• Journal of Advanced Marine Engineering and Technology
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• 제36권5호
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• pp.707-715
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• 2012

Ocean waves are mighty and powerful. Humans have explored the possibility of harnessing this mighty power for decades now. Estimated as suffice, if only, a fraction of this energy is captured and harnessed, the worry for decrease in fossil fuels diminishes and the current energy consumption of the world can be met. Though different types of methods and devices for extracting energy from this nonstop, free source has been proposed, a handful of them have reached commercialization and others are on the verge. This paper discusses the journey so far in terms of devices that have been developed or prototypes proposed or commercialized. Only a list full of them have been discussed though they exist in numbers.

• Nuclear Engineering and Technology
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• 제53권5호
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• pp.1634-1641
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• 2021

Exposure to gamma-rays is hazardous for humans and other living beings because of their high penetration through the materials. For this reason, shielding materials (usually lead, copper and stainless steel) are used to protect against gamma rays. This study's objective was to prepare ceramic materials for gamma radiation shielding by using different natural bentonite clays. Gamma-ray attenuation performances of the prepared shielding materials at different thicknesses were investigated and evaluated for different gamma-ray energies from different standard point gamma radiation sources (²⁵¹Am, ⁵⁷Co, ¹³⁷Cs, ⁶⁰Co, and ⁸⁸Y). The mass and linear attenuation coefficients of the prepared ceramics vary between 0.238 and 0.443 cm² g^-1 and between 0.479 and 1.06 cm^-1, respectively, depending on their thicknesses. Results showed that these materials could be prioritized because of their evidential properties of gamma radiation protection in radiation applications.

• 한국의류학회지
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• 제47권5호
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• pp.929-942
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• 2023

Web 3.0 enables people and machines to connect, evolve, share, and use knowledge on an unprecedented scale and in new ways, drastically improving our Internet experience. The metaverse is a collective, virtual shared space supporting all digital activities. Prompted by the rapid growth of digital art and digital fashion, this theoretical analysis explores using Jean Baudrillard's simulation concept to create unique digital art non-fungible tokens (NFTs), allowing them to express and communicate ideas like real-world art. Specifically, this study analyzes 120 digital fashion portraits of humans and animals and classifies them under three types of simulacra covering four stages of Baudrillard's simulation process. The result shows that NFT fashion artworks reflect the core features of a digital reality by connecting and transcending the boundaries of cultures, genders, and nationalities. However, in the final simulation stage (the fourth step), the simulacrum can only coexist in the virtual world as a hyperreal object (the Type III of simulacrum): an object more real than reality.