• Fisheries and Aquatic Sciences
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• 제14권2호
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• pp.123-129
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• 2011

To determine whether rearing density affects the hypermelanosis on the blind side (ambicoloration) of olive flounders Paralichthys olivaceus, we reared fry with an unpigmented non-eyed (blind) side in duplicate at densities of 150 individuals/$m^2$ (commercial production density: control) and 450 individuals/$m^2$ (high density group) for 90 days in 1-t dark-green fiberglass reinforced plastics (FRP) tank. We recorded feed intake, feed conversion efficiency (FE), growth and survival, and measured the ratios of staining blind-side area (staining area) and ambicolored fish every 30 days. Daily feed intake (DFI), feed conversion efficiency (FE), growth rate, condition factors, and survival rate were calculated at the end of the experiment. Although the FE was higher in the high-density compared to the control, the two density groups showed similar feed intakes, growth, and survival. The ratio of staining area as well as the ratio of ambicolored fish significantly were significantly higher in the high-density group than in the control from days 30 to 60, but significantly increased and evened out by the end of the experiment (P<0.05). In conclusion, we determined that rearing density is not the main cause of the blind-side hypermelanosis, but found that increasing the rearing density can accelerate the ambicoloration in olive flounders.

• Fisheries and Aquatic Sciences
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• 제6권4호
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• pp.194-202
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• 2003

Budgets for water, nitrogen, and chemical oxygen demand (COD) were determined in two 0.012 ha earthy-bottom ponds stocked with Israeli strain common carp at an initial stocking density of $20\;fish/m^3$. Total ammonia nitrogen (TAN) concentrations increased continuously but later decreased in pond A as a consequence of high nitrification. COD concentrations increased during the experimental period due to the accumulation of feed input. Nutrient budgets showed that feed represented $94-95\%$ of nitrogen input and about 99% of organic matter input. Fish harvest accounted for $40\%$ of nitrogen and organic matter input. Seepage and water exchange removed $15-17\%$ of nitrogen input but only $1-2\%$ of organic matter. Draining of the ponds removed $20-26\%$ of input nitrogen, mostly in inorganic forms, but removed only minus organic matter. Fish and water column respiration accounted for $39\%$ of organic matter input, and benthic respiration accounted for $7-12\%$ of organic matter input. No significant change of nitrogen and organic matter in both pond bottoms were found during the three-month growth period. The unrecovered input nitrogen, about $6.3-13\%$, was lost through denitrification and ammonia volatilization. On a dry matter basis, fish growth removed $31\%$ of total feed input and left $69\%$ as metabolic wastes.

• KIEAE Journal
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• 제16권6호
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• pp.77-82
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• 2016

Purpose: Almost every research carried out in our country against the natural disaster is focused on the temporary facilities such as temporary housing, emergency shelter and as a result, it is very hard to find out researches on the ordinary houses which installed integrated systems of hazard-resistant against the natural disaster. Method: To conduct this research, categorizing process for design, structural, environmental and installation elements found in the Hazard-Resistant and Reduction House built for sale in Japan was performed. Result: In this study, several design concepts and subordinate items are recommended for hazard-resistant housing. First, design concept of 'Preparedness' which means security and access to the storage storing goods especially food & beverage for the emergencies is needed. The subordinate items consist of security of stocking space, diversified and circular storage system, and safety storage system. Second, design concept of 'Security' which means security of physical safety space and rapid recovery to returning to daily life against natural disaster is needed. The subordinate items consist of many items including not only structure and facilities but also architectural design method. And finally, design concept of 'Maintenance, Support and Return' which means minimizing the physical and psychological damages and support safety and physical conditions of the victims from the impact of the disaster to returning to daily life is needed. The subordinate items consist of high efficiency insulation/airtightness design, microclimate design, combination of photovoltaic system and storage battery, non-power appliance system against the power failure, storing system for drinking water, rainwater storing and utilization system.

• 한국의류학회지
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• 제22권7호
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• pp.901-910
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• 1998

The purposes of this study were 1) to verify the theoretical model of the influential factors of brand variety seeking tendency in clothing products by identifying the relationships among optimum stimulation level, fashion leadership, fashion innovativeness, brand variety seeking attitudes and brand variety seeking behavior and 2) to identify the relationships among research variables according to clothing items(suits, jeans, casual jackets, T-shirts, panties, stocking) and the level of clothing involvement. The data was collected from 457 female college students living in Seoul and suburban areas, and was analyzed by frequency, one-way ANOVA, SNK test, multiple regression and path analyses. The results of this study were as follows: 1) There were significant effects of optimum stimulation level and fashion leadership on fashion innovativeness, significant effects of optimum stimulation level, fashion leadership and fashion innovativeness on brand variety seeking attitudes, and significant effects of brand variety seeking attitudes on brand variety seeking behavior 2) There were significant relationships among the research variables in case of suits and jeans. The relationships between variables were differed according to clothing items and the level of clothing involvement.

• 복식
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• 제51권6호
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• pp.129-145
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• 2001

Socks and stockings played a role as the first clothing covering foots and legs in ancient times. During the Middle Age they have represented clothing for legs and have been transformed into plasticity and aesthetic outlets for human beings aesthetic desire. Recently in around 1980 various experiments have been tried on them as part of total fashion changing as fashion trends changes. In 1990s the industry of socks and stocking in Korea has grown up as niche market, increasing the export amount twice as much as before. Therefore, this paper reveals the plasticity through historical study of socks and stockings. The purpose of this research is to analyse the plasticity by image classification of socks and stockings in 1990s on the basis of historical studies, which will be the basic data for developing high value added products. The major plasticity features of socks and stockings are material, technic, formativeness, ornament, color in a word. In 1990s the images of socks and stockings are classified into romantic, sporty, ethnic, ecology, avant- garde image. In 20th century knit and nylon became common and the part of the total fashion, completing the whole fashion.

• 생명과학회지
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• 제12권2호
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• pp.208-212
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• 2002

온도 기울기 전기영동장치를 이용하여 d(CXG)와 d(GXC) 염기의 열 안정성을 결정하는데 사람의 $\varepsilon$-글로빈 DNA조각을 사용하였다. 염기 쌍의 안정성은 이웃하는 염기서열에 의한 수소결합과 base stocking 상호작용에 의존한다. 염기 쌍의 안정성은 d(CXG) d(CYG)의 경우에 T.AG.A = A.G>C.T>T.C>C.A>A.C이다.

• 한국축산식품학회지
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• 제24권4호
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• pp.424-432
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• 2004

The handling and transport of broiler birds from farm to the processing factory is known to cause injury and dead. The preslaughter period can be compromised through thermal stress, emotional stress, starvation, dehydration, metabolic exhaustion, trauma to the skin and bone fraction resulting in bruising and dead. This paper focuses on the control points of individual post Harvest stages by reference to recent literature. In catching, the injuries and deads are caused from fracture of bone, skin damage and hipbone dislocation. It can be improved by training the catchers. The primary factor of dead during transportation is from thermal stress. It is related to stocking density, type of crate and vehicle, ventilation and transportation time. Of the factors, the ventilation is very important. The holding place should be built with consideration of protection from the hostile external environment. There were not much progresses in this area, however, many researches are conducting to focus on animal welfare in European Union. Recently, it is rapidly changed in marketing custom from whole carcass to portion cut in Korea. This means the increase of economic loss due to the mishandling at post harvest. The systematic approach is demanded for this area.

• 한국축산시설환경학회지
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• 제20권4호
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• pp.161-166
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• 2014

We conducted investigations of the information and welfare of cattle in Korea. The livestock housing of conventional cattle farms and organic cattle farms were open side wall type with winch curtain and used litter floor. The stocking density of conventional (ranging from $10head/m^2$ to $12.5head/m^2$) and organic cattle farms (ranging from $10head/m^2$ to $16.7head/m^2$) met the demand for conventional or organic standards, respectively. The galvanized plate and sunlight plate were used as the roof material in all of farms. Especially, additional areas were provided to produce forage or to improve animal welfare in organic cattle farms. Thus we believe that present data contribute to develop the animal welfare certification for cattle and to improve animal welfare in Korea.

• 한국해양바이오학회지
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• 제2권2호
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• pp.94-101
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• 2007

The status of recently expanded exotic pangasiid catfish Pangasius hypophthalmus, Pangasiidae farming in rural Bangladesh has been studied for finding research needs, through knowing the culture methods, associated activities and problems, to make the farming sustainable. Data were collected using participatory rural appraisal (PRA) tools in nine villages in three upazilas (sub-district) of Mymensingh district. The farmers have not got any formal training and have developed their knowledge on farming the fish through practice over years and sharing of knowledge among fellow farmers. Linked industries, e.g. hatcheries, nurseries, feed mills, trading of feed and fish etc. have developed that created employment opportunities. Most of the farmers produce two crops a year. About 90% of the farmers were found to practice mono culture of pangasiid catfish at high stocking density. The feeding rates started from 10-15% of the body weight per day at fingerling stage that reduced to 4-6% with growth. The average yield was found to be 25 tonslha/year. The livelihood of the farmers has been improved through farming the fish. Women and children were rarely engaged in the activities. The identified major problems in farming the fish were water quality deterioration, high feed costs and declining consumer demand and market price.

• 한국컴퓨터정보학회논문지
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• 제13권3호
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• pp.189-196
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• 2008

현대사회 범죄의 주된 경향으로써 사이버범죄의 발생 빈도가 증가하고 있다. 사이버공간을 통해 단순범죄에서부터 범죄기술에 있어서 고도의 전문화된 범죄에 이르기까지 다양하게 나타나고 있다. 인터넷 보급률이 확대되면서 일반인들이 정보매체에 접근할 수 있는 기회가 많아지고 범죄와 무의식적으로 연관될 수 있는 가능성이 높아지고 있다는 점에서 그 심각성이 매우 크다고 할 수 있다. 본 논문에서는 사이버 범죄의 여러 가지 유형과 특징들을 통해서 나타나는 사이버 범죄의 현황과 사이버 범죄에 대한 경찰 대응상의 문제점에 대해서 검토하고, 경찰의 효율적 대응방안을 제안하였다.