Civil defense originally refers to the protection of civilians in the events of war-related disasters. Today, it encompasses a wide range of protection, rescue, and recovery activities not only aimed at minimizing the damage caused by war but also addressing natural and man-made disasters such as wildfires, typhoons, and floods. Civil defense uniforms are worn by volunteers who participate in civil defense training organized by practitioners, government officials, and military personnel. Therefore, more than 3,350,000 persons (+6.5 % of the Korean population) likely should wear civil defense uniforms. As such, the functionalities of civil defense uniforms need to be reexamined and improved in response to the wider and newer responsibilities of the civil defense system to protect the civil defense personnel from potential hazards and to help better serve the Korean citizens. The essential functions of civil defense uniforms were proposed by analyzing various civil defense activities. Per the level and type of safety hazards, the design and materials for civil defense uniforms should ideally differ, similar to civil defense uniforms in other countries. We surveyed the current Korean civil defense uniforms’ design, material compositions and important functionalities such as water repellency, water pressure resistance, and flame resistance. Compared to common functional workwear, we suggest room for improvement in the functional properties of civil defense uniforms. This research paves a new road for the functional design of civil defense uniforms to address a wider range of hazards, potentially leading to rational guidelines for protective workwear and government uniform development.
The characteristics of extracts and precipitates after extraction at different water temperature (25, 50, 75, 95oC), ethanol ratio (25, 50, 75, 100%), and extraction method (stir, soak, autoclave) of yam powder and raw yam were investigated. The total polyphenol content was the highest in the 50% ethanol extract of yam powder. The DPPH radical scavenging activity was the highest in the 75% ethanol extraction and the crude saponin content was the highest in the 95oC water extraction. Tyrosinase inhibitory activity was the highest in 95oC water extraction, low concentration of ethanol extraction, and autoclave extraction. The peak viscosity, trough, and final viscosity of the precipitates increased after ethanol extraction, whereas decreased after the 95oC water extraction and the autoclave, indicating the destruction of starch granules. This was confirmed by observing the starch granules broken using the SEM. The significance of this study was to investigate the possibility of the use of yam resources as a material, processing product development, skin beauty functional food and cosmetic material.
Brown rice, barley, and buckwheat contain a variety of functional ingredients, such as vitamins, minerals, and dietary fibers. Germination is an effective technique for improving the digestion and absorption of the constituents in grains. In addition, germination could modify the chemical properties of grains and increase the content of biologically active substances. Many studies have reported that the intake of grains or germinated grains could ameliorate blood glucose level, stimulate the immune system, lower blood pressure, and result in anti-obesity effect. Therefore, grains and germinated grains are being utilized in a variety of functional products. The present study reviews the primary components and bio-functionalities of grains (brown rice, barley, and buckwheat) and germinated grains (germinated brown rice). The development of grain products for promoting health functional properties is also discussed.
본 연구에서는 한국산 봄배추와 일본산 봄배추의 품질특 성과 기능성을 살펴보고, 이 배추를 이용하여 김치를 제조 한 후 5℃에서 4주 동안 발효하여 이화학적 특성 및in vitro 건강 기능성의 차이를 살펴보았다. 품질특성으로 수분함량, pH, 산도, 총균수, Lactobacillus sp.의 수, Leuconostoc sp.의 수, 조직감, 관능평가를 실시하였으며 적숙기에서의 항산화, in vitro 항암 기능성 실험을 하였다. 일본산 배추는 97.1%의 수분을 함유하였고 한국산 배추는 92.4%의 수분 을 함유한 것으로 나타나 일본산배추가 한국산 배추에 비해 높은 수분을 함유하고 있었다. 생배추와 절임배추에서 한 국산 배추가 일본산 배추보다 탄력성이 높았고 4주간 숙성 한 김치의 탄력성은 한국산 김치가 53.5%로, 일본산 김치 (41.4%)보다 월등히 높은 것을 확인할 수 있었다. 한국산 배추로 제조하여 발효한 김치는 총균수는 낮으면서 젖산균 인 Lactobacillus sp.와 Leuconostoc sp.의 수는 높게 나타났 다. 관능평가에서 한국산 배추로 제조한 김치의 관능적 만 족도가 높게 평가되었다. 발효 3주차의 김치를 이용하여 DPPH radical 소거능을 측정한 결과 한국산 배추로 제조한 김치는 83.2%, 일본산 배추로 제조한 김치는 46.1%로 한국 산 배추로 제조한 김치에서 약 2배 정도 높은 DPPH radical 소거효과를 나타냈다. AGS 인체 위암세포에 김치의 메탄 올 추출물을 1 mg/mL의 농도로 처리했을 때 한국산 배추로 제조한 김치는 45%, 일본산 배추로 제조한 김치는 26%의 암세포 성장 저해율을 나타냈고, 2 mg/mL의 농도에서는 각각 97%, 74%의 암세포 성장 저해율을 나타내어 한국산 배추로 제조한 김치에서 저해 효과가 높은 것으로 나타났 다. 결국 한국산 배추의 품질이 우수하고 이로 제조한 김치 가 일본산 배추로 제조한 김치보다 품질이 우수하고 더 높은 항산화 및 항암기능성(AGS 위암세포)을 나타내었다.
The goal of this study was to investigate the nutritional characteristics and physiological functionality of Liriope tuber for development of new bioactive compound from Liriope tuber. Crude protein and carbohydrate contents of Chenogsim were 9.25% and 77.98%, respectively and crude protein, 9.86% and carbohydrate, 79.08% were also contained in Liriope tuber No.1. Both of Liriope tubers were showed very high contents of sucrose (Cheongsim; 4.08%, Liriope tuber No.1; 4.91%), oxalic acid (0.98%, 0.86%) and glutamic acid (3.736 g/100 g, 4,196 g/100 g). Among several physiological functionalities, tyrosinase inhibitory activity were showed very high 86.4% in Cheongsim and 82.02% in Liriope tuber No.1, respectively.
현대사회에서 게임의 영향력은 점차 확대되고 있지만 게임의 도덕적 정체성에 대한 사회적 불신은 줄어들지 않고 있다. 본 연구에서는 게임을 새로운 예술장르로 인식하고 예술과 도덕 간의 관계에 대한 미학적 입장들을 정리함을 통해 사회에서 수용가능한 게임의 도덕적 정체성에 대해 고찰하였다. 이를 바탕으로 새로운 예술형식으로써 게임이 독자적으로 갖고 있는 매체적인 특성에 내재된 도덕적 이슈들을 가상현실성, 상호작용성, 그리고 시뮬레이션의 측면에서 지적하고, 이러한 문제점을 해결하기 위한 가장 효율적인 방안으로 존 듀이의 예술교육론을 반도덕주의적 관점에서 적용한 도덕적 피드백 시스템을 제안하였다.
The effect of precoating of silica with polyamine surfactants on the adsorption of five model compounds containing asphalt-like functionalities was studied. Hexadecyltrimethylammonium chloride (HDTMA) and 1-hexadecylamine were used for silica precoating. The model compounds representing five asphalt functionalities were benzoic acid, phenol, benzylbenzoate, benzophenone, and quinoline. All the adsorption isotherms conformed well to the Langmuir adsorption model. All the model compounds showed decreased adsorption with the HDTMA precoating. However, two acidic compounds, benzoic acid and phenol, showed enhanced adsorption on the silica precoated with 1-hexadecylamine. In aqueous solutions, the adsorption of the acidic compounds were in the following order: silica precoated with 1-hexadecylamine > silica precoated with HDTMA > uncoated silica.
재래식 된장의 품질을 고급화하기 위해 재래식 된장과 각종 한약제와 약초류를 달리 첨가하여 제조한 두 종류의 약용 된장들을 6개월간 숙성시키면서 성인병에 관련된 몇 가지 생리 기능성의 변화를 조사하였다 약용 된장들의 고혈압을 예방하는 엔지오텐신 전환효소(ACE) 저해활성은 숙성기간이 길어짐에 따라 급격히 감소하여 숙성 6개월 후에 39.0%∼51.7%을 보였고 혈전용해활성은 숙성 6개월후에 10.4∼11.3 U를 보였다. 약용 된장들의 전자공여능은