• The Journal of Korean Institute of Communications and Information Sciences
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• v.24 no.8A
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• pp.1245-1251
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• 1999

A 1.25Gb/s path control switch chip has been designed and implemented with COMPASS tool and 0.8${\mu}{\textrm}{m}$ CMOS gate-array of LG semiconductor. This device controls the path of digital singnals in SDH-based transmission system. The proposed switch chip is suitable for self-healing operations both in a linear network and an unidirectonal ring, The self-healing operation of the switch is effectively done by the configuration information stored in the resisters of the switch. The test device adapted to SDH-based transmission system, show immediate restoration and a 10-11~10-12 bit error raito. And 2.5Gb/s or more high throughput can be realized by combining rwo identical or more switches with the parallel architecture.

• Corrosion Science and Technology
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• v.19 no.1
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• pp.37-42
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• 2020

Even though 304 low-carbon (304L) stainless steel was developed to enhance the resistance to intergranular corrosion and stress corrosion cracking, it is occasionally subject to degradation in harsh environments. The degree of sensitization (DOS) of 304L stainless steel was studied as a function of sensitization using a double-loop electrochemical potentiokinetic reactivation (DL-EPR) method. Sensitizing heat treatment was performed in an Ar atmosphere at 500℃, 600℃, and 700℃, with heat treatment times varying from 0 to 96 h. DOS was measured by the ratio of the peak current density value of the forward scan to that of the reverse scan. After the EPR experiment, the specimen surface was observed by scanning electron microscopy and energy dispersive spectroscopy. The DOS of the specimens heat-treated at 600℃ increased with heat treatment times up to 48 h and then decreased due to a self healing effect. The DOS was higher in specimens heat-treated at 600℃ than those at 500℃ or 700℃. Corrosion of the sensitized specimens occurred mainly at the δ-γ phase boundary. The corrosion morphology at the δ-γ phase boundary changed with sensitizing heat-treatment conditions due to differences in chromium activity in γ austenite and δ ferrite.

• Korean Journal of Materials Research
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• v.5 no.6
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• pp.743-747
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• 1995

The relationship between the variation of crystallinity and the resultant self-bonding strength of PEEK was examined by using DSC in conjunction with the shear test. DSC measurement of the crystallinity produced at different bonding conditions demonstrated that even though PEEK specimens contain the same amount of crystallinity, the resultant self-bonding strength is sensitively dependent on bonding history. It also showed that all crystallization during the bending process occurs only in the healing and annealing stage and no additional crystallization occurs in the cooling stage.

• Journal of the Korean Society for Precision Engineering
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• v.32 no.8
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• pp.755-760
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• 2015

For proper wound healing, dermal contraction and remodeling are critical; during the natural healing process, differentiated fibroblasts called "myofibroblasts" typically undertake these functions. For severe wounds, however, a critical mass of dermal matrix and fibroblasts are lost, making self-regeneration impossible. To overcome this impairment, synthetic wound patches with embedded functional cells can be used to promote healing. In this study, we developed a polydioxanone (PDO)-based cell-embedded sheet on which dermal fibroblasts were cultured and induced for differentiation into myofibroblasts, whereby the following combinatorial physicochemical stimuli were also applied: aligned topology, electric field (EF), and growth factor. The results show that both the aligned topology and EF synergistically enhanced the expression of alpha smooth-muscle actin (${\alpha}$-SMA), a key myofibroblast marker. Our proof-of-concept (POC) experiments demonstrated the potential applicability of a myofibroblast-embedded PDO sheet as a wound patch.

• Korean Journal of Health Education and Promotion
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• v.16 no.1
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• pp.187-201
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• 1999

A purpose of this study is to provide Rousseau's health theory and health education in 『Emil』. Though Rousseau was not so much a doctor as a philosopher, he was good at health care and health education. After he had thought over healthy children for 20 years, he had written 『Emil』 for 3 years. His health theory was included in the book. He was aware of the importance of mother's milk, clothes, and physical health. Especially, he told mothers to rear a child at the breast. He understood thoroughly the demerits of medicines, and made no account of doctors and medicines. But on the other hand, He emphasized natural healing power in human body. He thought that one oneself was a physician. He thought highly of inner healing. He thought that only hygiene of medicine was useful to mankind. He prescribed that hygiene was a kind of ethics education. Therefore, his hygiene was associated with mental health and moral evaluation. Because many years have passed, today we can not accept all his assertions. But we need to stress preventive medicines, spontaneous healing, and self-care in health education.

• Journal of Digital Convergence
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• v.12 no.12
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• pp.545-552
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• 2014

Most people think that our brain and mind are separate, however, they are closely connected. With this idea, we can heal the sickness of our brain and mind. People understand their lives better through the process of 'Identification-Catharsis-Insight' by reading literatures. In addition, they can speak out from their suppressed heart and take comfort when they write. Therefore, they will enjoy the self-healing effects. In this regard, we can help the people who are suffering from their brain damages or people who have wounded heart using literatures, and heal their mind.

• Proceedings of the Korean Information Science Society Conference
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• 2008.06d
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• pp.322-326
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• 2008

시스템의 규모가 대형화되어 감에 '시스템의 시스템'의 형태로써 대규모 사이즈의 프로그램 다양한 목적을 가진 사용자들, 대규모 저장 데이터양과 처리, 소프트웨어 컴포넌트간의 복잡한 연결상과 상호 의존성, 하드웨어의 다양성등을 포함하는 초대형 규모로 발전하고 있다. 또한 유, 무선 인터넷의 보편화와 소형기기들의 인터넷화 및 기존 서비스들의 개방화가 진행됨에 따라 새로운 독자적인 서비스를 만들기 보다는 SOA기반의 기존 시스템을 통합하여 새로운 서비스를 만드는 시도가 일어나고 있다. 최근 진행되고 있는 국가 및 산업의 대형 프로젝트들은 이러한 흐름에 따라 IT기술을 융합한 소프트웨어 기반의 초 대형 시스템 (Ultra Large Scale System)을 필요로 하고 있다. 이에 본 논문에서는 이러한 정보와 시스템의 대규모화에 대한 즉각적인 대처를 할 수 있는 Ultra Large Scale 시스템의 자율적응형 (Self-Adaptive) 기술 연구를 위하여 Self-Healing, Self-Integrating, Self-Orchestrating, Self-Managing, Self-Adaptring의 5가지 관점에서의 연구를 제안한다. 본 논문에서 제안하고 있는 연구의 파급 효과를 극대화 할 수 있는 영역은 e-Biz 시스템 u-city 시스템, USN 기반 물류 시스템 자동차 및 조선 사업의 IT융합 등의 대규모 시스템이 될 것이다.

• Journal of Yeungnam Medical Science
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• v.30 no.2
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• pp.79-82
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• 2013

The demand for complementary and alternative medicine (CAM) is increasing worldwide. High-technology medicine is not always effective and is often accompanied by neglected self-care and high cost. Also, conventional medicine has become dependent on expensive technological solutions to health problems. Integrated medicine is not simply a synonym for complementary medicine. It involves the understanding of the interaction of the mind, body, and spirit and how to interpret this relationship in the dynamics of health and disease. Integrative medicine shifts the orientation of the medical practice from a disease-based approach to a healing-based approach. In South Korea, CAM education was first provided 20 years ago, and integrative medicine is becoming part of the current mainstream medicine. Increasing numbers of fellowships in integrative medicine are being offered in many academic health centers in the U.S. Also, it has emerged as a potential solution to the American healthcare crisis and chronic diseases, which are bankrupting the economy. It provides care that is patient-centered, healing-oriented, emphasizes the therapeutic relationship, and uses therapeutic approaches originating from conventional and alternative medicine.

• Proceedings of the KSR Conference
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• 2008.11b
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• pp.1668-1673
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• 2008

고분자 복합재 구조물의 경우 일반적으로 여러 층의 단층(laminar)이 적층된 구조로 이루어져 있으며, 모재균열, 층간분리 및 섬유파단과 같은 손상이 발생되어 파단에 이르게 된다. 자가손상 복구기법은 복합소재의 열경화성 수지 내에 손상복구액을 포함하고 있는 마이크로캡슐과 촉매를 투입하여 외부의 도움 없이 손상을 치료할 수 있는 방법으로, 소재의 디자인에 있어서 새로운 페러다임을 제공할 수 있는 것으로 현재 많은 연구가 진행되고 있다. 본 연구에서는 ENB(5-ethylidene-2-norbornene)와 DCPD(dicyclopentadiene)에 대하여 DMA(dynamic mechanical analysis)와 DSC(differential scanning calorimetry)를 이용하여 특성을 분석하였다. 또한 그들의 ROMP(ring-opening metathesis polymerization)반응과의 관계를 조사하였으며, ENB와 DCPD 블렌드에 대한 복구액으로서의 특성도 조사하였다. 본 연구실에서 합성된 두 가지 다른 종류의 ROMP 경화제에 대한 실제 자가손상복구에으로서의 적용상 특성도 연구하였다.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.04a
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• pp.251-252
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• 2022

The microfluidic controlled droplet manufacturing system is one of the most powerful methods for capsule manufacturing. The microfluidic control method can control the type and size of the capsule by changing the size and configuration of the channel. In addition, by increasing the number of channels, capsules of uniform size can be mass-produced. In this paper, a capsule manufacturing system including flow-focusing and T junction method was designed. In addition, the effectiveness of this system was verified by manufacturing multi-emulsion capsules with a size of 2.2 to 3 mm.