• Journal of the Korean Recycled Construction Resources Institute
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• v.10 no.3
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• pp.335-342
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• 2022

In this study, self-healing hybrid capsules were prepared by mixing self-healing solid capsules and self-healing microcapsules using inorganic materials as core materials. Self-healing hybrid capsules were mixed with 3 % according to the composition ratio of 3:7, 5:5, and 7:3 based on the mass of the cement to prepare a self-healing cement composite material. The healing properties of crack self-healing hybrid capsules were evaluated through hydrostatic water permeability test and surface crack monitoring. It was found that the self-healing hybrid capsules prepared by mixing the composition ratio of the self-healing solid capsules and the self-healing microcapsules at 7:3 has a great effect on improving the crack self-healing performance.

• Proceedings of the Korean Society For Composite Materials Conference
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• 2001.05a
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• pp.93-96
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• 2001

Structural polymer composites are susceptible to damage in the form of cracks, which form deep within the structure where detection is difficult and repair is almost impossible. A recent methodology for the damage repair of polymer composites using the self-healing technique is reported. The polymerization of the healing agent is triggered by contact with an embedded catalyst, being necessary to damage repair of polymer composites. For this purpose, the self-healing concept is introduced and the manufacturing process of microcapsule with the healing agent is briefly described. The polymerization between the healing agent and the catalyst is verified by the use of ESEM and IR spectroscopy. Finally the efficiency of the self-healing technique is investigated by measuring the critical load of TDCB specimen.

• Journal of Korean Society of Rural Planning
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• v.22 no.3
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• pp.11-19
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• 2016

The purpose of this study was to develop the strategy on activation of village by forest healing. Researcher conducted the questionnaire survey for forest healing village development to classify the mountain's characteristics by the three factors(linkage resource, program, facilities). In result, village characteristics were divided into two types: single element outstanding type(resource), complex element outstanding type(resource+program, resource+facilities). The development of forest healing village have to focused on the forest healing service recipient and mountain village characteristics. In conclusion, relationship between forest healing recipient and mountain characteristics was as follows: single type (resource) - public; complex type (resource+program) - chronic disease, social vulnerable people; complex type (resource+facilities) - severe disease. The detailed guideline for forest healing village needs to be established according to the mountain characteristics.

• Journal of The Korea Institute of Healthcare Architecture
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• v.13 no.3
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• pp.47-55
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• 2007

The theme of this study is holistic healing environment of children's library and it was researched on the basis of anthroposophy theory of Rudolf Steiner. According to Steiner's theory, human being consists of body, spirit, and soul. Especially, children are sensitive ones, and through synthetic function of 12 kinds of senses, they can be holistically healed (healing of body, spirit, and soul). As the sense independently functions or it is a element that cannot be described, it needs spatial plan to support synthetic function of it. We classified the healing space's meaning of children library by motion (including art and music), reading, & landscape healing activities and analyzed spatial characteristic to support each activity.

• Corrosion Science and Technology
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• v.8 no.6
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• pp.223-226
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• 2009

Polymer coatings are commonly applied to metal substrates to prevent corrosion in aggressive environments such as high humidity and under salt water. Once the polymer coating has been breached, for example due to cracking or scratches, it loses its effectiveness, and corrosion can rapidly propagate across the substrate. The self-healing system we will describe prevents corrosion by healing the damage through a healing reaction triggered by the actual damage event. This self-healing coating solution can be easily applied to most substrate materials, and our dual-capsule healing system provides a general approach to be compatible with most common polymer matrices. Specifically, we expect an excellent anti-corrosion property of the self-healing coatings in damaged parts coated on galvanized metal substrates.

• Journal of Forest and Environmental Science
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• v.26 no.1
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• pp.53-63
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• 2010

This study carried out to establish a master plan about healing forest in Gangwon-do focusing on healing road and visitor center. The site of this study was approximately 721 ha of mountain in Imgye-myeon, Gangwon-do, and the master plan was established through analysis of humanities-social and natural environments. The healing forest was developed 6 healing trails(10.5 km), devided by 3 steps, and each healing trail was designed to make rest area, wooden bridge, and open space. Also, visitor center, the core place of healing forest, was devided to several spaces as health measurement room, AV room, etc. and was planed for audio-visual education room for visitors.

• CELLMED
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• v.2 no.1
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• pp.4.1-4.13
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• 2012

When medicine is unable to cure, and the end becomes imminent, or when the patient is tired of the side effects associated with chronic use of drugs, the search for alternative and new ways of healing is begun. Coincidentally, sometimes the alternative is the origin, as is the case for traditional Arab medicine and traditional American Indian healing. Traditional healing is the first healing that all people have used for 200,000 years, since the beginning of Homo sapiens. The sources and elements of traditional Arab medicine have been examined in books and by consulting with traditional Arab healers. Arabic medicine is a career combining both elements of science and philosophy based on religion and traditions, and includes a diversity of healing approaches: spiritual, physical, and using natural products. These approaches are discussed with emphasis on wet cupping (Alhijamah), a practice that is undergoing a revival nowadays in Arab countries. American Indian healing is a career based on religion, tradition, an innate healing gift and extensive training, both in a medical school setting and as an apprentice. Arabic healing approaches are compared to American Indian healing approaches.

• Elastomers and Composites
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• v.50 no.3
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• pp.167-174
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• 2015

Anionic epoxy compound was synthesized and added to asphalt aiming to prepare self-healing asphalt. Epoxy-modified asphalt showed excellent modification effect and healing effect as well. The results revealed that with 5% addition of polymer the tensile strength, impact strength and complex shear modulus of the polymer-modified asphalt increased by 65%. 64% and 35%, respectively. It seems that high interaction occurs between polymer and asphalt matrix. Self-healing efficiency of the polymer-modified asphalt based on tensile strength showed 100%, comparing to 79% of straight asphalt. In impact experiment the polymer-modified asphalt showed 99% of healing efficiency, comparing to 77% of straight asphalt. In rheological experiment the polymer-modified asphalt showed 103% of healing efficiency, comparing to 72% of straight asphalt. It appears that the ionic bonding existing in epoxy polymers contributed to high values of self-healing efficiency. The polymer which has high intermolecular force fills the crack of the asphalt, pulling the opponent side each other, and so the original properties were restored.

• Korean Journal of Organic Agriculture
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• v.29 no.3
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• pp.385-396
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• 2021

This paper investigated the satisfaction of agro-healing and analyzed its willingness to participate in agro-healing in the future. First, a survey of intentions to participate in agro-healing found that the ratio of participation was 55.6% (125 people). It is analyzed that more than half of teenagers who have experienced agro-healing programs are willing to participate again. Second, a survey of satisfaction with agro-healing showed the highest improvement in agricultural awareness, including increased public interest value of agriculture. This can be seen as a way to raise public awareness of agriculture, as well as the effects of mental and physical health recovery, social integration contributions, and social safety contributions. Third, an analysis of the effect of awareness on the willingness to participate in agro-healing showed that the less significant it was, the higher the awareness, the higher the willingness to participate. In other words, various information delivery means, such as public relations measures, should be prepared to raise awareness of agro-healing. Fourth, it can be seen that those with low satisfaction with expected effects such as health recovery, social safety, social integration, and improved agricultural awareness have a clear difference in their willingness to participate in the future. In other words, the higher the satisfaction level of the agro-healing program, the higher the willingness to participate in the agro-healing industry in the future.

• KEPCO Journal on Electric Power and Energy
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• v.7 no.2
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• pp.295-299
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• 2021

Recently, interest in maintenance has been increasing due to the enlargement and aging of infra structures. Therefore, a new paradigm is required to secure and improve the durability of structures differentiated from the past. Accordingly, research on smart concrete incorporating the concept of self-healing into concrete is being actively conducted. In this study, the crack healing performance and durability performance of self-healing concrete applied with a hydrogel containing biomineral-forming microorganisms were evaluated. As a result of evaluating the dispersion of the hydrogel in concrete, it was confirmed that the hydrogel was well distributed in concrete matrix with a dispersion coefficient of 0.35 to 0.46. The crack healing performance evaluation was verified by a water permeability test, and showed a recovery rate of 95% or more at the age of 28 days, confirming the applicability of self-healing concrete. The durability performance of self-healing concrete was evaluated in terms of resistance to penetration of chloride ion and freezing and thawing. Regardless of the mixing of the hydrogel, the same level of durability performance was shown for various compressive strength level. Therefore, it was confirmed that the microbial admixture did not affect concrete durability. In the future, long-term crack healing performance and durability verification studies should be supplemented.