• 한국실내디자인학회논문집
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• 제24권2호
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• pp.32-41
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• 2015

We live in the era of unlimited design competition. As the importance of design is increasing in all areas including marketing, each country does its best effort on design development. However, the preparation on protecting interior design rights by intellectual property laws(IPLs) has not been enough even though they occupy an important place in the design field. It is not quite easy to make a judgement on the similarity between two images having a single common factor because the factors which are composed of interior design have complicated interactive relations between them. From the IPLs point of view, designs with the similar overall appearance are decided to be similar. Objective evaluation criteria not only for designers but also for design examiners and judges are required in order to protect interior design by the IPLs. The objective of this study is the analysis of the possibility that a computer algorithm method can be useful to decide the similarity of interior design images. According to this study, it is realized that the Img2 which is one of content-based image retrieval computer programs can be utilized to measure the degree of the similarity. The simulation results of three descriptors(CEDD, FCTH, JCD) in the Img2 showed the high degree of similar patterns compared with the results of perceptual judgment by observers. In particular, it was verified that the Img2 has high availability on interior design images with a high score of similarity below 60 which are perceptually judged by observers.

• 대한원격탐사학회지
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• 제39권6_3호
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• pp.1763-1770
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• 2023

고해상도 위성영상 시계열 데이터 확보가 쉬워져 이를 활용한 변화탐지 연구가 활발히 이뤄지고 있다. 위성영상 화소 및 객체 단위 변화탐지 알고리즘 뿐만 아니라, 최근 딥러닝 기술을 적용한 알고리즘 등 다양한 방안이 연구되고 있다. 이런 유용한 결과의 활용도를 높이기 위한 QGIS 플러그인 기반 시스템 구축 방안을 제시하고 실 구축 사례를 제시한다. 제안한 시스템은 관심지역에 대한 집중적인 변화탐지 모니터링을 위한 시스템이며, 향후 개발할 알고리즘의 편리한 시스템 확장 방안을 제시한다. 더 나아가 변화탐지 연구결과 현업화의 기본 구조를 제시하여 위성영상 활용 시스템 구축에 기여할 것으로 기대한다.

• 한국토양비료학회지
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• 제38권1호
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• pp.52-57
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• 2005

굴껍질을 주원료로 하는 패화석비료가 토양개량제로서 배추의 생육 및 수량을 증진시키고 토양의 이화학적 특성 개선에 효과가 있는 것으로 알려져 있다. 평택통 (Fine silty, Typic Endoaquepts)의 밭 토양에 굴패화석비료를 0, 4, 8, 12, and $16Mg\;ha^{-1}$ 처리하여 봄배추를 재배하는 과정 중 패화석비료 시용량이 증가함에 따라 토양내 유효인산함량은 일정하게 증가되는 것이 확인되었다. 유효인산 함량의 증가는 1차적으로 패화석비료내 포함된 인산 ($1.5g\;P_2O_5\;kg^{-1}$)의 직접투입이 토양 내 전 인산을 증가시키고 유효인산을 증진시킨 것으로 평가되었다. 그리고 알카리성 제재인 패화석비료가 pH 5.8의 공시토양의 pH를 중성범위로 높이면서 간접적으로 유효인산함량을 증진시킨 것으로 해석되었다. 패화석비료의 시용량이 증가함에 따라 토양내 수용성 인산과 Ca-P 함량을 다소 증가시켰으나, Al-P와 Fe-P의 비율을 크게 감소되었다. 결과적으로 패화석비료는 토양내 유효인산함량 증진에 효과가 있으며, 이렇게 많아진 유효인산을 이용하여 인산시비량을 저감하고 나아가 인산유출을 저감할 수 있는 방법이 될 수 있을 것으로 판단된다.

• 한국결정성장학회지
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• 제30권4호
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• pp.143-149
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• 2020

전복패각을 Ca원으로 이용하여 바이오 소재로 중요한 인산칼슘(calcium phosphates)들을 침전법을 통해 합성하였다. 전복패각에서 유래한 수산화칼슘(Ca(OH)₂)을 칼슘 공급원(전구체)으로 사용하였다. 수용액상에서 수산화칼슘과 인산(H₃PO₄)을 반응시켜 침전반응을 유도하여 인산칼슘화합물로의 합성을 유도하였다. 초기 전구체 Ca/P 비율을 1.50, 1.59 및 1.67로 조절하였으며 이 조성변화와 침전물에 대한 열처리가 분말 및 소결체의 물성에 미치는 영향에 대해 조사하였다. 초기 전구체 Ca/P 비율을 조절함으로써 소결체 상합성의 조절이 가능하였고, 1150℃에서 소결한 소결체에서(hydroxyapatite(HAp), β-tricalcium phosphate(β-TCP) 및 HAp와 β-TCP가 혼합된 2상 인산칼슘(BCP, HA/β-TCP))들이 합성되었다. 이러한 결과는 저비용, 고가용성을 가지는 경제적인 출발물질로부터 고부가가치 인산칼슘을 합성할 수 있는 가능성을 보여주었다.

• 한국유기농업학회지
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• 제8권1호
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• pp.101-109
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• 1999

In order to investigate the possibility of treating the different mixture ratios of apple pomace and nightsoil sludge by vermicomposting was performed and the stability of worm casts, and availability of worm casts as plant growth media was evaluated by the analysis of chemical composition. The results were obtained as follows ; 1. The value of cast production at 100% apple pomace treatment was higher than those of other mixture ratios of apple pomace and nightsoil sludge. 2. The highest values of increasing rate and reproductive efficiency were obtained at mixture ratios of 60% apple pomace with 40% nightsoil sludge. 3. The value of increasing rate at 100% nightsoil sludge treatment was lower that those of other mixture ratios of apple pomace and nightsoil sludge. 4. Organic matter, available inorganic nutrients and stability of worm casts showed high values in all treatments. It means that worm casts are an excellent plant growth media source with a high chemical composition and their stability.

• 한국환경농학회지
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• 제25권4호
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• pp.346-351
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• 2006

시설 유기농 토마토 생산을 위한 녹비 토양환원 효과를 조사하기 위하여 여름 휴한기 동안 페레니얼라이그라스, 수단그라스, 콩 등 3종의 녹비를 재배한 후 토양에 환원 하였다. 녹비 토양환원 후, 후작물로서 토마토를 재배하였으며, 녹비토양환원에 따른 토마토 생육 및 수량, 양분이용율, 양분수지량을 조사하였다. 녹비 토양환원 후 토마토의 생육 및 생산성은 콩과 같은 두과작물을 녹비로 활용 시 현저히 증가하였다. 반면에 페레니얼라이그라스는 여름철 고온에 따른 하고 현상으로 생육이 부진하였고, 수단그라스는 녹비 수확량은 많았으나 높은 C/N율로 인해 토마토의 수량을 감소시켰다. 콩을 녹비로 토양환원 시 후작물 토마토의 수량은 화학비료를 처리한 관행과 비교할 때 현저한 차이가 없었고, 토양 내 질소 수지량은 양의 값을 보였다. 결과적으로 수단그라스 녹비는 후작물 토마토의 생산성을 크게 감소시킨 반면, 콩 녹비는 관행수준의 토마토 수량을 얻을 수 있을 뿐 아니라 토마토 재배에 필요한 양분수지를 충족시킬 수 있어 수단그라스에 비해 우수한 녹비로 판단된다.

• Asian-Australasian Journal of Animal Sciences
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• 제16권8호
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• pp.1108-1117
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• 2003

In Guadeloupe small ruminants (SR) are reared for meat production under pasture conditions. Intensive rotational grazing systems (irrigated, fertilised and high stocked) allow reasonable levels of production but generate high post-grazing residues. Experiments were designed to control them. A system in which residuals were mown (RM) was tested in comparison to the control system (Residuals Remained, RR). The same design was carried out for two years with Creole goat (G) and Martinik sheep (S). An accelerated reproductive rate (3 parturitions over 2 years) was carried out. Systems were compared at three parturition seasons per year(dry, intermediate and rainy seasons). Each group was composed of 20 goats ($36.0{\pm}2.5kg$) or 20 ewes ($46.8{\pm}2.4kg$). The female body traits did not vary according to pasture management and seasons. The stocking rate averaged 1,400 kg LW/ha. The mean fertility rate for does varied significantly (p<0.05) within the kidding season, from $80.4{\pm}0.5%$ to $93.7{\pm}2.9%$ while the mean litter size was $2.30{\pm}0.07$ total kids born. No effect of pasture system was observed. Corresponding values for ewes were $83.2{\pm}12.8%$ vs. $75.6{\pm}12.5%$ (p<0.05) and $2.43{\pm}0.24$ vs. $2.03{\pm}0.29$ (p<0.01) total lambs born for SRM and SRR ewes, respectively. A seasonal effect was observed upon ewe performances. The preweaning mortality of kids and lambs averaged 16.3% and 14.4%, respectively. It was 7 and 9 percentage points more (p<0.01) for RR than for RM kids and lambs, respectively. For both species, weaning took place at an average age of $81.4{\pm}3.6days$. In Creole kids, live weight at birth and at weaning were $1.9{\pm}0.2kg$ and $8.9{\pm}0.8kg$, respectively. In the Martinik sheep, the traits averaged $2.9{\pm}0.2kg$ and $18.9{\pm}0.9kg$. For both traits in both species, significant (p<0.05) group${\times}$season interactions were recorded. The consequences of elimination of post-grazing residues varied according to the SR species, the environmental conditions and the animal physiological status. The forage characteristics were not limiting factors since forage availability in the RM systems (2,300 and 2,600 kg DM/ha, respectively) and chemical composition were at satisfactory levels (CP content averaged 12 and 10%). It is recommended to develop new grazing system which would allow the use of post-grazing residues instead of mowing the refusals.

• 한국육종학회지
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• 제50권4호
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• pp.516-521
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• 2018

신품종 '누리찰'은 찰성 쌀보리 신품종으로 국립식량과학원에서 계통육종법으로 육성하였다. 3개 지역에서 답리작 지역적응시험을 실시한 결과 답리작 적응성이 높으며, 쓰러짐에 강하고 수량이 7-16% 증가된 보리밥 특성이 좋은 계통임이 입증되었다. 출수기와 성숙기는 답리작에서 새찰쌀보리보다 각각 1일 늦었다. 간장은 82 cm로 중장간, 수장 4.0 cm, $m^2$당 수수는 774개로 새찰쌀보리와 많았으며 천립중은 25.0 g으로 새찰쌀보리보다 가벼웠고 도복에 강하고 보리호위축병에 저항성을 보였다. 단백질 함량은 새찰쌀보리보다 적었고, ${\beta}-glucan$, 전분, 아밀로스 함량은 새찰쌀보리와 비슷하였다. 흡수율은 비슷하였고 퍼짐성은 다소 높았다. 호화특성은 최고점도가 높고 치반점도가 낮았으며, 보리밥 물성은 경도, 탄력성, 저작성이 새찰쌀보리보다 낮아 보리밥이 다소 부드러운 특성을 보였다. 평균수량성은 답리작에서 4.00 MT/ha로 새찰쌀보리보다 10% 증가하였다.

• Journal of Ecology and Environment
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• 제42권2호
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• pp.85-89
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• 2018

Observations and video documentation of interactions between animals living in dens, cavities, and other enclosed spaces are difficult, but they play an important role in field biology, ecology, and conservation. For example, bird parents visiting nests and feeding their nestlings may provide crucial information for testing of ecological hypotheses and may easily attract attention of participants of citizen-science ecological and conservation projects. Because of the nest concealment of cavity-nesting birds, their behaviors in the nest can only be studied by using video surveillance. Professional wildlife surveillance systems are extremely expensive. Here, we describe an inexpensive video setup that can be constructed with relatively little effort and is more affordable than any previously described system. We anticipate that the relatively low cost of about 250 USD for a battery-operated system is an important feature for citizen-science type of projects and for applications in heavily populated areas where the potential for theft and vandalism may be high. Based on our experiences, we provide methodological advice on practical aspects of using this system in the field for ecological research on birds. We highlight the low cost, easiness of construction, and potential availability to a large number of observers taking part in wildlife monitoring projects, and we offer technical help to participants of such research projects.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2005년도 춘계 학술발표대회
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• pp.5-16
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• 2005

The herb of Allium victorialis var. platyphyllum (Liliaceae) has been used as an edible wild herb and to treat heart failure and gastritis. We have already reported antihyperlipidemic anti-tumor effects of this plant. To enlarge the commercial availability of this food, it was investigated whether the extracts of A. victorialis var.platyphyllum reduce hyperlipidemia and obesity or not. The plants tested in this experiment were collected from two eco-types of IS. Ullung and Mt. Odae cultivated at Pyongchang. Extracts were prepared by extracting the fresh leaves and those dried at $36^{\circ}C$ and $90^{\circ}C$, respectively. Pretreatment with the ethanolic extracts for two weeks (p.o.) reduced serum triglyceride-, total cholesterol- and LDL-cholesterol contents in rats induced by Triton WR-1339, respectively. Furthermore, oral administration of the extracts also inhibited the hyperlipidemia induced with oral diet of 30% corn oil. In the other attempt to find to alleviate the obesity, the model rats with obesity were induced by the high fat-diet for six weeks. Post-treatment with the extracts for two weeks significantly reduced the hyperlipidemia. Retroperitoneal-, epidymal- and total abdominal fat pad weights were considerably reduced at 100 mg/kg oral administration of the extracts. Increased feces lipid contents were also found in the rat treated with the extracts. The extract of Mt. Odae eco-type showed more potent activity than that of Is. Ullung one. These results suggest that use of the fresh leaves may lead to the higher activity in treatment of hyperlipidemia and obesity than of the dried one.