• 한국콘텐츠학회논문지
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• 제20권9호
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• pp.68-85
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• 2020

2000년대 초반 뉴미디어 플랫폼을 통해 등장한 '먹방'은, 사회경제적 조건의 악화 속에서 혼자 식사를 해야 하는 청년 세대의 삶을 반영하였다. 많은 젊은이들이 먹방을 함께 시청하며, 비슷하게 어려운 처지를 겪는 이들과 가상적 일상 생활의 공동체를 구축하며 위안을 얻을 수 있었다. 이후 먹방은 사회를 반영하며, 또한 시청자의 요구를 수용하며 다양한 형태로 진화하여, 현재는 한국에서만이 아니라 글로벌 현상이 되었다. 기존 연구는 이런 먹방의 성장과 변화보다는 초반에 나타나는 화제거리로서의 현상에만 주목하여 먹방을 제한적으로 다루고 있다. 본 논문은 이런 한계를 비판적으로 검토하며, 먹방의 성장과 발전이 사회적 변화 과정과 어떻게 상호작용하며 전개되었는가, 그리고 이런 먹방의 고유성이 어떻게 뉴 미디어의 특성 속에서 등장할 수 있었는 가를 살펴보고자 한다. 이를 통해 먹방이 세계적 현상으로 성장한 맥락과 기존 미디어에 미친 영향 등을 두루 살펴볼 수 있을 것이다.

• 대한가정학회지
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• 제44권5호
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• pp.35-48
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• 2006

The purpose of the study is to examine how housing consciousness has been changed through various discourse on ideal housing from opening ports to the present. Reviews of literature including newspapers, magazines, novels, advertising materials, research papers, books, and so on are mainly utilized in accomplishing the purpose. This study covers four periods such as the enlightenment era, the Japanese colonial nile, before and after the Korean war, and after the economic development to present. During the enlightenment period in which foreign culture and housing were introduced, with reconsideration on traditional housing basic physiological housing value including health and hygiene was appeared. The desires of Munhwa housing with western styles and housing improvement were emphasized due to the new cultural improvement during the Japanese colonial rule. Before and after the Korean war which was chaotic times with rehabilitation, the provision of a large amount of public housing with minimum conditions for the basic human needs was the most important. After 1960s, due to the housing policy focusing on the mass-provision of apartments and the discourse on apartment as an ideal housing for the ordinary households in Korea, apartment dwellings become structure type norms in Korea.

• Journal of Plant Biotechnology
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• 제36권2호
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• pp.193-196
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• 2009

Pinellia koreana K-H Tae & J-H Kim is a recently discovered Korea endemic medicinal plant species whose natural habitat is rapidly destroyed by industrial development. Described in this paper are culture conditions for high frequency plant regeneration via bulblet formation from leaf explant cultures of P. koreana. Leaf explants formed white nodular structures and off-white calluses at a frequency of 91.2% when cultured on MS medium supplemented with 2 mg/L BA and 0.5 mg/L NAA. However, the frequency of white nodular structures and off-white calluses formation was slightly decreased with an increasing concentration of NAA up to 4 mg/L, where the frequency reached 31.7%. Most petiole explants did not form white nodular structures and off-white calluses except the combination treatment of 2 mg/L BA and 2 mg/L NAA. Upon transfer onto MS basal medium, over 90% of nodular structures gave rise to numerous bulblets and developed into plantlets. Plantlets regenerated from bulblets were transplanted to potting soil and grown to maturity at a survival rate of over 95% in a growth chamber. Therefore, the in vitro plant regeneration system of P. koreana obtained in this study will be useful for mass propagation and long-term preservation of genetic resources of P. koreana.

• Mycobiology
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• 제47권4호
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• pp.512-520
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• 2019

Statistical experimental methods were used to optimize the medium for mass production of a novel laccase3 (Lac3) by recombinant Saccharomyces cerevisiae TYEGLAC3-1. The basic medium was composed of glucose, casamino acids, yeast nitrogen base without amino acids (YNB w/o AA), tryptophan, and adenine. A one-factor-at-a-time approach followed by the fractional factorial design identified galactose, glutamic acid, and ammonium sulfate, as significant carbon, nitrogen, and mineral sources, respectively. The steepest ascent method and response surface methodology (RSM) determined that the optimal medium was (g/L): galactose, 19.16; glutamic acid, 5.0; and YNB w/o AA, 10.46. In this medium, the Lac3 activity (277.04 mU/mL) was 13.5 times higher than that of the basic medium (20.50 mU/mL). The effect of temperature, pH, agitation (rpm), and aeration (vvm) was further examined in a batch fermenter. The best Lac3 activity was 1176.04 mU/mL at 25 ℃, pH 3.5, 100 rpm, and 1 vvm in batch culture.

• Journal of Microbiology and Biotechnology
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• 제25권1호
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• pp.57-65
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• 2015

β-Glucosidase production by the white rot fungus Flammulina velutipes CFK 3111 was evaluated using different carbon and nitrogen sources under submerged fermentation. Maximal extracellular enzyme production was 1.6 U/ml, corresponding to a culture grown in sucrose 40 g/land asparagine 10 g/l. High production yield was also obtained with glucose 10 g/land asparagine 4 g/l medium (0.5 U/ml). Parameters affecting the enzyme activity were studied using p-nitrophenyl-β-_D-glucopyranoside as the substrate. Optimal activity was found at 50℃ and pHs 5.0 to 6.0. Under these conditions, β-glucosidase retained 25% of its initial activity after 12 h of incubation and exhibited a half-life of 5 h. The addition of MgCl₂, urea, and ethanol enhanced the β-glucosidase activity up to 47%, whereas FeCl₂, CuSO₄, Cd(NO₃)₂, and cetyltrimethylammonium bromide inflicted a strong inhibitory effect. Glucose and cellobiose also showed an inhibitory effect on the β-glucosidase activity in a concentration-dependent manner. The enzyme had an estimated molecular mass of 75 kDa. To the best of our knowledge, F. velutipes CFK 3111 β-glucosidase production is amongst the highest reported to date, in a basidiomycetous fungus.

• 수산해양기술연구
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• 제55권4호
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• pp.310-319
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• 2019

Although mud shrimp (Upogebia Major) provides benefits on the tidal flat ecosystem, it is causing the mass mortality of Manila clam (Tapes philippinarum) and large economic loss to the aquaculture farmer due to spreading in the entire coastal clam farm area of the West Sea of Korea. In this study, a mud shrimp blocking box for cultivating clam was tested to prevent the mud shrimp from invading the habitat of the clam. To determine the effect of the blocking box, the growth characteristics of the clams under various culture conditions were investigated. The shell length, total weight, condition index, the presence of mud shrimp in the box, and the soil decay in the box were examined according to whether the clams were raised in the box or in natural state, whether the box is covered with a net or not and the gap size of the box. As a result, no significant differences in shell length, total weight, and condition index were found between the clam grown in the box and the natural state (P>0.05) without any evidence of invading of mud shrimp to the box. In addition, the soil inside the box was in good condition, not decayed. Therefore, using the mud shrimp blocking box, mud shrimp can be prevented from propagating to the habitat of the clam, thereby contributing to the normal production of the clam and thus to restoring the clam farming.

• 한국수산과학회지
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• 제39권5호
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• pp.419-426
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• 2006

This study investigated the ecology and growth of Monostroma nitidum Wittrock in both its natural habitat and the laboratory. The maximum length, width, and weight of M. nitidum in March were 9.0$\pm$4.7 cm, 9.6$\pm$3.6 cm, and 1.52$\pm$1.13 g, respectively. Yellowish-green or yellowish-brown reproductive thalli began to appear in January, and over 80% of the thalli matured by March. The male and female spores were ca. 6 $\mu$m long, and elongate and ovoid in shape. The spores had two flagella and one-eye spot, and tended to swim toward light. Maximum number of spores released from matured thalli was 236 cells/mL after 70 minutes at a light intensity of 100 $\mu$mol/m$^2$/s. The zygote diameter ranged from 3.4-6.0 $\mu$m (mean 4.2 $$m) and increased to 69.8 $\mu$m 14 weeks after culture. The mass release of zoospores was observed from thalli in the dark (3 to 12 days), after 30 min under dry conditions in the shade, at 25$^{\circ}C$, and a light intensity of 100 $\mu$mol/m$^2$/s. The maximum number of zoospores released was 109.8 cells/mL after 60 min of induction. M. nitidum fronds on the net increased to 6.8-7.2 cm in length, and 6.6-8.9 cm in width during the winter.

• 한국식품과학회지
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• 제46권4호
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• pp.418-424
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• 2014

배 농축액의 유가식 배양을 통해 영양원 없이 산도 12% 이상의 고산도 식초를 제조하면서 발효단계(Stage 1-4) 및 초기 알코올농도(6-9%)에 따른 품질특성 변화를 확인하였다. 환원당, 유리아미노산, 총 페놀 함량, 총 플라보노이드 함량 및 라디칼 소거능은 1차 초산발효한 일반산도 식초에 비해 2차 초산발효한 고산도 식초에서 증가하였고, 이는 유가식으로 첨가된 feeding 알코올의 영향으로 사료되었다. SPME/GC-MS 분석을 통한 20여종의 휘발성분은 식초의 산도에 따라 함량의 차이를 나타내었고, 초기 알코올농도의 증가에 따라 자극적인 향의 acid류 함량이 다소 증가하였다. 이상의 결과, 초기알코올 농도 6-7% 조건에서 유가식 배양으로 제조된 고산도 배식초는 일반산도 식초에 비해 우수한 품질을 나타내었고, 이에 관능특성 및 대규모 생산에 대한 연구가 필요한 것으로 사료되었다.

• 게임&엔터테인먼트 논문지
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• 제2권2호
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• pp.61-69
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• 2006

영상 문화의 발달과 함께 영상의 그래픽적인 요소인 이미지 일러스트레이션과 타이포그래피 등을 이용하여 정보 전달을 극대화 할 수 있는 모션그래픽의 중요성도 날로 강조되고 있으며 최근 의도하는 내용을 창의적인 타이포그래피로 시각화한 사례들을 TV광고, 영화 또는 웹과 같은 다양한 미디어 매체에서 쉽게 찾아 볼 수 있으며 또한 증가 추세에 있다. 이러한 영향으로 모션 타이포그래피에서는 무형의 의미적 개념을 타이포그래피라는 시각적 형식을 통하여 표현하기 위하여 언어적 요소, 시간, 형태, 움직임, 색채 그리고 사운드 등과 같은 다양한 요소들을 응용하여 제작할 수 있는 다양한 방법들이 제안되고 있다. 하지만 실제 의사전달 과정에서 더 큰 영향을 미칠 수 있는 성별, 나이, 건강상태, 병적 상태, 신체 사이즈 등의 생리학적 특징을 들 수 있는데 의사전달이 시각적 형식으로만 표현되어야 하는 모션 타이포그래피에서 준언어적 음성의 특성을 적절하게 반영할 수 있다면 의도한 내용을 보다 빠르고 정확하게 이해시킬 수 있을 것이다.

• 농업과학연구
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• 제47권4호
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• pp.1011-1020
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• 2020

Efficient management systems of facilities make it possible to manage environmental conditions properly, such as the temperature, humidity and light source required for the best growth of the crops, as well as for the mass production of fruit and vegetables with high quality every year through an advanced and protected cultivation system. Powdery mildew is a type of chronic disease that is difficult to control during the production of Korean melons under a protected cultivation system, the use of which is increasing in production areas in Korea. Two Bacillus strains isolated from soil samples showed antagonistic activities against several pathogens, specifically Botrytis cinerea, Colletotrichum gloeosporioides, and Fusarium oxysporum f.sp. melonis; they were identified as Bacillus velezensis M2 and B. amyloliquefaciens M3 in a molecular biological test of the nucleotide sequences of gyrase subunit A (gyrA). The treatment was given three times at intervals of five days with 400-fold diluted cultures of B. velezensis M2 and B. amyloliquefaciens M3. This led to the inhibition of the incidence of powdery mildew disease in Korean melon leaves, which resulted in effective control efficiency against the incidence of powdery mildew disease with control values of 87% and 65%, respectively. Cultures of antagonistic microbes tested in this study can be used to increase the efficiency as part of an environmentally friendly management scheme to prevent powdery mildew disease during the protected cultivation of crops, including Korean melons.