• Quantitative Bio-Science
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• v.37 no.2
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• pp.81-89
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• 2018

It is commonplace that high false detection rates interfere with immediate vision-based fire monitoring system. To circumvent this challenge, we propose a fire detection algorithm that can accommodate color variations of RGB in temporal domain, aiming at reducing false detection rates. Despite interrupting images (e.g., background noise and sudden intervention), the proposed method is proved robust in capturing distinguishable features of fire in temporal domain. In numerical studies, we carried out extensive real data experiments related to fire detection using 24 video sequences, implicating that the propose algorithm is found outstanding as an effective decision rule for fire detection (e.g., false detection rate <10%).

• Journal of the Semiconductor & Display Technology
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• v.20 no.3
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• pp.125-130
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• 2021

Scaffold is used to produce bio sensor. Scaffold is required high dimensional accuracy. 3D printer is used to manufacture scaffold. 3D printer can't detect defect during printing. Defect detection is very important in scaffold printing. Real-time defect detection is very necessary on industry. In this paper, we proposed the method for real-time scaffold defect detection. Real-time defect detection model is produced using CNN(Convolution Neural Network) algorithm. Performance of the proposed model has been verified through evaluation. Real-time defect detection system are manufactured on hardware. Experiments were conducted to detect scaffold defects in real-time. As result of verification, the defect detection system detected scaffold defect well in real-time.

• Food Science and Industry
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• v.53 no.1
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• pp.43-55
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• 2020

Most reports demonstrated the substrate specificity-based kinetic properties of chitin or chitosan degrading enzymes. However, there is virtually less information on the high quality and quantity production of chitin or chitosan hydrolysates having a larger than (GlcN)₇ from the hydrolysis of high molecular weight chitosan using specific enzymes and their biological activity. Therefore, the production of such molecules and the discovery of such enzyme sources are very important. Fortunately, the author has established a mass production method of chitosan hydrolysates (GlcN)_n, n=2-13 that have been characterized as a potent antioxidant substance, as well as antifungal and antibacterial activities against Penicillium species and highly selective pathogenic bacteria. In addition, preclinical studies using (GlcN)_n, n=5-25 demonstrated that these molecules played a very important role in maintaining biometric balance. Collectively, it is implicated that the application of these mixed substances to foods with significant biological activity is very encouraging.

• International Journal of Advanced Culture Technology
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• v.10 no.4
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• pp.403-411
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• 2022

Appearance management is evolving as a means of self-expression or as a way of expressing one's individuality. In particular, hairstyle is the most important part of a person's appearance and accounts for 70% of the appearance. Improving people's appearance by changing their hairstyle gives them confidence. Among them, the fringe hair style plays an important role in determining the first impression and reflects the trend. Fringe is shorter and simpler than general hair treatment, but even these small treatments have the effect of changing the impression, so women are trying to transform into a fringe hair style. A previous study was conducted on four lines classified: round, heart, square, and triangular. In this study, we added them to define 5 hairlines and created them by combining each hairline. that have been produced 5 fringe hair styles that suit the shape of the face. It is expected that the results of this study will be used as educational materials for hair line and fringe hair styles in the field, contributing to the beauty industry.

• Animal Bioscience
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• v.36 no.2_spc
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• pp.333-338
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• 2023

Genetic modification enables modification of target genes or genome structure in livestock and experimental animals. These technologies have not only advanced bioscience but also improved agricultural productivity. To introduce a foreign transgene, the piggyBac transposon element/transposase system could be used for production of transgenic animals and specific target protein-expressing animal cells. In addition, the clustered regularly interspaced short palindromic repeat-CRISPR associated protein 9 (CRISPR-Cas9) system have been utilized to generate chickens with knockout of G0/G1 switch gene 2 (G0S2) and myostatin, which are related to lipid deposition and muscle growth, respectively. These experimental chickens could be the invaluable genetic resources to investigate the regulatory pathways and mechanisms of improvement of economic traits such as fat quantity and growth. The gene-edited animals could also be applicable to the livestock industry.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2020.08a
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• pp.4-4
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• 2020

본 연구는 경북 제1의 마늘 산지인 영천지역의 마늘과 홍마늘의 특성과 생리활성을 평가하고, 이를 통해 액상스틱 가공제품을 개발하는 것이 그 주요한 목표이다. 영천지역 마늘은 난지형 마늘로 20일, 40일 숙성시킨 홍마늘의 경우 숙성이 진행됨에 따라 당/산 비율이 마늘보다 높아 관능적으로 우수하였다. 뿐만아니라 40일 숙성 홍마늘에서 가장 높은 총 폴리페놀 및 총 플라보노이드 함량을 나타내었으며, 항산화능 역시 가장 우수하였다. 마늘보다 홍마늘의 기능성이 우수하지만 지역 마늘 소비 촉진을 위해 우선적으로 일반마늘을 이용한 가공제품 개발 여구를 진행하였고 부원료로는 지역 생산량이 많은 사과, 포도를 활용하였다. 사과 농축액 첨가 제품과 포도 농축액 첨가 제품에서의 일반 성분분석 결과 2종 모두 우수한 관능성을 나타내어 제품화에 적합하였다. 항세균 및 항진균 활성이 나타나지 않았지만, 항당뇨 활성은 기대하기 어려웠다. 하지만 급성 독성을 나타내지 않은 본 제품은 항산화능에서 모두 우수한 결과를 보여 노화억제, 면역력 증강의 효과가 기대되므로 가공제품으로서의 이용성이 높다고 판단된다.

• Knowledge Management Research
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• v.22 no.4
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• pp.103-118
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• 2021

Gross Domestic Product(GDP) is affected by the economic power of each industry. Therefore, using statistical data related to the food and drug industry, we tried to determine the proportion of GDP and analyzed the impact of the food, medical & drug industry on the domestic economy through comparison with other industries. The food, medical & drug industry has a wide range of industries among domestic industries and is closely related to the lives of the people. In addition, human lifespan is increasing, and recently, due to the spread of an infectious disease called COVID-19, the bio sector belonging to the food, medical & drug industry is in the spotlight. Attention is needed to the industry as the competitiveness of the food, medical & drug industry is expected to increase. The Ministry of Food and Drug Safety provides statistics on the food, medical & drug industry, but does not provide a systematic share of GDP. Since it is difficult to determine how influential the industry is compared to other industries, this study attempts to obtain the share of GDP in the food, medical & drug industry and compare it with other industries. In the process of obtaining GDP in the food, medical & drug industry sector, there was a difficulty in that the figures in statistical data were not unified by time point. In order to overcome the limitations, statistical data as a standard are determined. The GDP of the Food, Medical & Drug Industry was estimated using total added value, production, sales, and added value by industry. Compared to other industries, the Food, Medical & Drug Industry's GDP ranked second after the GDP of the manufacturing industry. As a result, it suggests that the food, medical & drug industry has a great influence on the national economic power among domestic industries.

• Polymer(Korea)
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• v.33 no.6
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• pp.551-554
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• 2009

Poly (vinyl alcohol) (PVA) and carboxymethyl cellulose (CMC) have received increasing attention in biomedical and biochemical applications because of their properties such as being water-soluble and biocompatible. In this study, a PVA/CMC hydrogel applicable to artificial cartilage was prepared by a freezing-thawing technique and a gamma-ray irradiation. The solid concentration of PVA was 7 wt% and the concentration of CMC was 4 wt%. The freezing/thawing process was repeated twice and the dose of gamma-ray irradiated was 30 kGy. Results of gelation before and after gamma-ray irradiation were similar, but the swelling degree decreased and compressive strength increased. The cytotoxicity was investigated with CCK-8 assay.

• 대한공업교육학회지
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• v.40 no.2
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• pp.72-91
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• 2015

This study is aimed at researching and analyzing the actual conditions of the curriculum and career path of chemical engineering field in specialized high school, and seeking for a curriculum improvement plan for activation by means of identity establishment of chemical engineering field. This study surveyed the actual conditions of school (department) regarding chemical engineering, and analyzed an adequacy among the curriculum, department name and acquired license. The results are as follows. Firstly, In order to the chemical engineering field to maintain the identity of chemical engineering and accept the changes in the industrial site, it is desirable for the department name to use the name of applied science, such as Applied Chemical Industry, Nano Chemical Industry, Environmental Chemical Industry, Energy Chemical Industry, Convergence Materials Science and Chemical Engineering, Ceramic Chemical Engineering, Biomolecular and Chemical Engineering, and Food Bio-chemical Engineering, which are derived from chemical engineering, and the revision of curriculum should be included. Secondly, it is necessary to diversify relevant licenses by standard department of chemical engineering field, and clarify the purpose of human resources development and the image of talented, considering the future course of graduates and the demand of industry, for the purpose of improving school-leveled curriculum to raise the possibility of employment. Thirdly, in accordance with the changing paradigm that secondary vocational education is changed from 'just-to-know education (knowledge)' to 'can-do education (capability)', it is necessary to make the performance ability-centered curriculum in which 'chemical engineering industry - chemical engineering vocational education - chemical engineering qualification' are integrated.

• Asian-Australasian Journal of Animal Sciences
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• v.32 no.6
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• pp.808-814
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• 2019

Objective: The objective of this study was to investigate the effects of essential oil mixture (EOM) supplementation on rumen fermentation characteristics and microbial changes in an in vitro. Methods: Three experimental treatments were used: control (CON, no additive), EOM 0.1 (supplementation of 1 g EOM/kg of substrate), and EOM 0.2 (supplementation of 2 g EOM/kg of substrate). An in vitro fermentation experiment was carried out using strained rumen fluid for 12 and 24 h incubation periods. At each time point, in vitro dry matter digestibility (IVDMD), neutral detergent fiber digestibility (IVNDFD), pH, ammonia nitrogen ($NH_3-N$), and volatile fatty acid (VFA) concentrations, and relative microbial diversity were estimated. Results: After 24 h incubation, treatments involving EOM supplementation led to significantly higher IVDMD (treatments and quadratic effect; p = 0.019 and 0.008) and IVNDFD (linear effect; p = 0.068) than did the CON treatment. The EOM 0.2 supplementation group had the highest $NH_3-N$ concentration (treatments; p = 0.032). Both EOM supplementations did not affect total VFA concentration and the proportion of individual VFAs; however, total VFA tended to increase in EOM supplementation groups, after 12 h incubation (linear; p = 0.071). Relative protozoa abundance significantly increased following EOM supplementation (treatments, p<0.001). Selenomonas ruminantium and Ruminococcus albus (treatments; p<0.001 and p = 0.005), abundance was higher in the EOM 0.1 treatment group than in CON. The abundance of Butyrivibrio fibrisolvens, fungi and Ruminococcus flavefaciens (treatments; p<0.001, p<0.001, and p = 0.005) was higher following EOM 0.2 treatment. Conclusion: The addition of newly developed EOM increased IVDMD, IVNDFD, and tended to increase total VFA indicating that it may be used as a feed additive to improve rumen fermentation by modulating rumen microbial communities. Further studies would be required to investigate the detailed metabolic mechanism underlying the effects of EOM supplementation.