• Journal of the Korean Institute of Landscape Architecture
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• v.37 no.1
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• pp.50-64
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• 2009

The freshwater lakes located at the fringe of urban cities are a habitat for diverse organisms. However, they are facing severe danger of environment deterioration and water pollution caused by reckless development of the area. In this study, an ecological management plan was suggested to promote the biodiversity through appointing management area based on the research and analysis data of flora and fauna as well as maintain biodiversity and harmonize utilization of freshwater lakes such as Duryang Reservoir at Sacheon, Gyeongsangnam-do. Base on the data of ecological research and analysis, this study conducted research on biotope assessment, wild life habitat assessment and presence of protected species. As a result, the ecosystem conservation area including multi-layer structured natural forests, waterside and wetland that are home to various species and the edge area with high habitat diversity were recognized as highly preservable regions. Management areas were ecologically disturbed region, highly polluted commercial district and damaged waterside caused by fishing. Proactive management must be implemented through vegetation management such as vegetation transition and shrub planting as well as establishing pollutant management system. The deterioration of waterside and forest vegetation of freshwater lake has a direct influence on biodiversity and water quality. Therefore, the conservation area and development area should be totally separated from each other, and the development area must be restored and managed strictly.

• 한국생물공학회:학술대회논문집
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• 2003.04a
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• pp.719-723
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• 2003

The dispersing activity and physical properties of exopolysaccharide (Cystan) produced by Cystobacter sp. MSL-9 was studied. Dispersing activity of Cystan was measured by using bentonite, calcium carbonate, and kaolin. Rheological properties of Cystan were investigated by using a rheometer MCR300. It was found that dispersing activity of Cystan was maintained under various pH and temperature conditions. A particle size analyzer BI-9000AT was used for the particle size measurement of Cystan in aqueous solution. The high dispersing activity and stability under various pH and temperature conditions showed the feasibility of Cystan as a industrial biodispersant.

• Korean Journal of Environmental Biology
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• v.26 no.3
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• pp.247-251
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• 2008

Degradation behavior in the seawater of Tongyeong, Incheon, Kunsan and Hongsung was explored for Mater-Bi$^{(R)}$, poly(3-hydroxybutyrate-co-3-hydroxy valerate) (PHBV), poly(butylene succinate-co-butylene adipate) (PBSA) and polycaprolactone (PCL) which can eventually be used for various fishery tools. Acinetobacter lwoffu/junii and Shewanella algae/putrefaciens inhabited all the seawater samples. Eikenella corrodens was also detected in all the seawater samples, although identified with poor confidence by VITEK system. Mater-Bi$^{(R)}$ was degraded faster than PHBV, PBSA and PCL in the seawater in contradiction to the degradation behavior in soil environment. The seawater retrieved from Incheon exhibited the most elevated activity for the plastic degradation, which may be partly ascribed to the largest number of total viable counts.

• Proceedings of the Korea Water Resources Association Conference
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• 2004.05b
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• pp.1023-1026
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• 2004

우리나라는 토지이용이 고도화 되어 있고 상수원에 각종 오염시설이 이미 입지해 있으며 개발압력이 가중되고 있는 현실을 고려해 볼 때 환경기초시설 확충 및 배출기준 강화 등 사후적 관리방법으로는 상수원의 수질개선에 한계가 있다. 그리고 상수원수질보전을 위한 기존의 토지이용 규제정책도 일정 규모 이하는 규제 대상에서 제외되어 소규모 시설에 대한 효율적 규제가 안 되고 있을 뿐만 아니라, 토지이용 규제에 의한 주민의 재산권 제한으로 민원도 계속되고 있다. 따라서 오염원의 총량적인 증가에 효율적으로 대처하고 주민이 스스로 오염원 총량발생을 억제함과 동시에 환경친화적으로 지역을 개발할 수 있는 새로운 수질관리 기법이 도입될 필요가 있다. 이에 본 연구에서는 섬진강을 대상하천으로 각 배수구역별 유황분석을 실시하고, 오염원조사, 부하량 산정, 수질모델링의 불확실성등 안전율을 고려하여, 오염원 총량관리 기본방침을 기준으로 오염총량관리대상 오염물질의 종류인 생물학적 산소요구량(BOD)에 대하여 2006년과 2011년의 장래수질예측을 실시하였고 그 결과 목표수질을 달성할 수 있는 배수구역별 부하량을 할당하였다.

• Proceedings of the Korea Water Resources Association Conference
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• 2007.05a
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• pp.1788-1792
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• 2007

한강 "수변구역"에서 비점오염물질의 공공수역 유입을 억제하기 위한 다양한 방법들 중에서 보편적이고 자연친화적인 방법은 다양한 생물의 서식공간이며, 동시에 본류로 유입되는 과정에서 수질을 정화시키는 수질개선 공간인 수변완충구역, 또는 지대를 설정하여 관리하는 것이다. 그러나 이러한 수변완충지대 효과 분석 및 설정에 관한 연구는 국내에서 아직 수행되지 않았다. 본 연구의 목적은 수변구역의 자정능력을 높이는 것은 물론 그 밖의 하천 연안에서 비점오염물질의 차단과 처리능력을 증진시키고 수변 생태계의 서식처 보전 및 복원을 위해서 수변완충지대의 수질정화 기술개발과 생물다양성을 창출하는 수변완충지대 조성 기법을 개발하는데 있다. 본 연구에서는 기존 수변완충지의 추가적인 조성과 보완, 시험완충지 생태구조 및 기능 기초조사, 시험완충지 오염부하 저감효과의 실험 및 분석, 수변완충지대 설치 구상 등의 연구를 수행하여 수변완충지대 조성 시 설정 폭을 산정할 수 있게 하였다. 수행 지역은 한강수계 지역으로 남한강 수변인 경기도 양평군 병산리에서 실시하였으며, 잔디와 갈대, 갯버들, 혼합지역, 자연그대로의 상태(대조지역)의 5 구역으로 구분하였고, 거리별, 깊이별 샘플을 채취하여 유입수에 대한 오염물질 제거효율을 도출하고, 이를 이용하여 수변완충지대의 설계 시 필요한 유역의 폭, 면적, 길이 등과 같은 설계인자를 도출할 수 있도록 하였다.

• KSBB Journal
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• v.18 no.3
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• pp.243-247
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• 2003

The microbial immobilization media with curdlan and activated carbon which has great immobilization capacity has been developed. Characteristics of porosity and mechanical strength of this support media are dependent on manufacturing method. The support media showed the best cell immobilization performance when the ratio of curdlan and activated carbon was 30 g/L to 6 g/L in this study. The immobilization of iron-oxidizing bacteria on the supporting particles was photographed with a scanning electron microscope. Since cell concentration on the surface of supporting particle increased with the reaction time, the iron oxidation rate also increased.

• The Journal of the Korea Contents Association
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• v.9 no.7
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• pp.9-18
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• 2009

This paper deals with the elderly serious game design which makes full use of the existing arcade game machine. This serious game is on the issue for its positive role recently. Serious arcade game for the elderly which is made up arcade platform-based combined contents manufacture technology has an element which is having a fun for building up physical and mental health. It also has a special objective which can prevent against senile dementia. Above-mentioned serious arcade game which has a special objective in both hardware part and software part is needed to study how to design. Accordingly, this paper presents how to make up special-purpose entertainment machine and contents development by biologic, social, and psychological researches and data about the elderly - main users. We hope that this paper can be used as a base for expansion of new industrial field by integrating new product development for the elderly with high game technology.With the help of information technology

• Journal of Wetlands Research
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• v.15 no.1
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• pp.139-147
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• 2013

This study is thing about eco-tourism activated Mt. Gede Pangrango National Park in Indonesia. Indonesia is full of eco-tourist resources with the possession of the tropical forest. Particularly, Gede Pangrango National Park on the west of Java island has so plenty of bio-diversity that the UNESCO designated this park as the World Biosphere Reserve. By virtue of this, various visitors all over the world are visiting Gede Pangrango Park for doing research, education, hiking and camping. However, Indonesia lags behind other countries in convenience facilities for visitors, so their visiting programs are actually insufficient. In order for eco-tourism to be revitalized, there should be physical improvement in visiting facilities, management of a variety of visit programs, and local residents' participation & projects to increase the income of local residents. This study is going to seek for the environment-friendly management plan suited for the properties of the park and improvement plan for eco-visiting facilities by closely grasping the actual condition of the eco-tourism of Gede Pangrango National Park.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.10 no.5
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• pp.58-66
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• 2007

과거 빗물은 토양으로 흡수되어 정화작용을 거쳐 호수나 강으로 유입됨으로써 하천의 수질 오염을 방지할 수 있었으나 개발로 인한 도시의 불투수층 증가로 빗물은 여과없이 도시의 오염물질을 쓸어 내리며 하천으로 유입되어 하천의 수질 오염이 날로 심해지고 범람하는 빗물은 짧은 시간에 도시를 물에 잠기게 한다. 오염물질을 함유한 빗물의 정화 및 빗물 유량 조절을 위한 방안으로 미국에서는 레인 가든의 조성이 활발하게 진행되고 있다. 본 원고에서는 레인 가든의 환경적 의의와 조성방법, 그리고 빗물로부터 하천을 보호하기 위한 미국의 관련 규정을 알아보고 레인 가든의 효과에 대해 검토하고자 한다. 레인 가든은 오염 물질의 하천 유입방지 및 빗물의 저장 역할 외에 도시지역에서 최소 관리로 생물 서식처 역할을 함으로써 생태도시 조성 기술을 한 단계 높이는 방안이 될 것이다.

• KSBB Journal
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• v.13 no.2
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• pp.125-132
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• 1998

Protein affinity membrane was prepared via the coating of chitosan gel on the porous flat polysulfone membrane surface, followed by the immobilization f the reactive dye (Cibacron Blue 3GA) to the chitonsan gel. The maximum protein binding capacity of affinity membrane was about 70${\mu}g/cm^2$ determined by the batch adsorption experiments of human serum albumin (HSA). Using module of this membrane, the characteristics of protein chromatography were investigated through the experiments of elution and frontal chromatography of HSA. This membrane module promises as a chromatography column, since it represented a lower pressure drop and a greater reproducibility. The protein separation ratio was significantly influenced by the flow rate of mobile phase and the injection quantity of HSA. The dynamic protein binding capacity of module decreased from the equilibrium binding capacity with increasing flow rate and approached the value of 15 - 20 ${\mu}g/cm^2$ for flow rates above 6 mL/min.