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        검색결과 81

        41.
        2005.10 구독 인증기관 무료, 개인회원 유료
        우리나라 대부분의 국가산업단지 개발은 기업의 수요에 의한 개발이 아닌, 정부차원에서 공급자 위주로 이루어져왔다. 기업의 다양한 수요를 수렴하지 못한 개발은 지금의 산업단지 수요ㆍ공급의 심각한 불균형 현상을 초래하게 되었고, 특히 북평 산업단지는 95년에 준공되었지만 전국 42개 국가산업단지 가운데 현재까지 미분양률이 약 63%로서 가장 높은 상황이다. 이에 본 연구에서는 북평 산업단지 활성화를 위한 방안으로서 클러스터 구축 및 공동물류 시스템 운영을 통한 활성화 방안에 대하여 연구하였다.
        4,000원
        42.
        2004.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study was carried out to establish an effective system for embryo transfer techniques by educational-industrial complex. The embryos of Korean Cattle were transferred into a total of 79 recipients. The pregnancy rate were higher in Korean Cattle (38/53, 72%) than Holstein (17/26, 65%) in recipients. However, there were no significantly difference between Korean Cattle and Holstein in recipients. In embryo transfer using fresh embryos (28/39, 72%), the pregnancy rate was slightly higher than frozen-thawed embryos (68%, 27/40). In another experiment, the number of transferred embryos showed no difference in pregnancy rate, but when two embryos (75%, 21/28) transferred, the pregnancy rate was slightly higher than with one embryo (65%, 33/51). In summary, it will be useful to apply effective system for improvement of pregnancy rate and increase of the income in a farmhouse on embryo transfer of Korean Cattle by educational-industrial complex.
        4,000원
        43.
        2003.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구는 도심지역인 서울시청 부근과 공단 지역인 안산 반월 공단지역 내에 서식하는 비둘기를 대상으로 중금속 농도의 차이가 번식 경과에 미치는 영향을 파악 하고자 수행하였다. 조사 결과, 서울지역의 비둘기의 알 내용물 및 성조의 뼈 조직 중 납 농도가 각각 평균 1.64 ug wet g-1, 29.5 ug wet g-1으로 안산 공단지역의 1.13 ug wet g-1, 10.5 ug wet g-1 보다 높게 검출되었고
        4,000원
        44.
        2003.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        도심 지역인 서울시청 부근과 공단지역인 안산 반월 공단지역 내에 서식하는 비둘기의 알,새끼, 성조를 대상으로 각 발달 단계에 따른 납과 카드뮴의 체내 축적 농도를 비교하고 각 지역의 오염 수준을 파악하고자 수행하였다 조사 결과, 납 및 카드뮴 농도는 뼈, 신장, 간, 허파 등 모든 조직에서 새끼보다 어미가 높았으며,특히 납은 뼈에서, 카드뮴은 신장에서 현저하게 높았다. 서울의 경우, 납 농도는 알보다 새끼의 뼈 조직에서 약 3배 높았고, 새끼보다 성조의
        4,000원
        47.
        1999.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        공단 주변 지역에 형성되어 있는 초지 군락의 구조, 종 다양성 및 토양 특성을 조사하였다. 조사지역은 상관에 의해 쑥(Artemisia princeps var. orientalis)군락, 미국자리공(Phytolacca americana)군락, 참억새(Miscanthus sinensis)군락으로 구분되었다. 1999년 8월에 조사한 각 식물군락의 지상부 현존량은 쑥군락 5,645g/m2, 미국자리공군락 2,827g/m2, 참억새군락 9,048g
        4,000원
        48.
        1998.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        여천공단 주변 산림지역의 식물군집구조를 밝히고 13년간 변화를 파악하기 위하여 300m2 조사구를 27개소 설정하였다. DCA ordination분석 결과 곰솔군집, 곰솔-참나무류군집, 곰솔-사스레피나무군집, 소나무-곰솔군집, 소나무군집으로 나누어졌다. 5개 군집의 천이경향을 살펴보면 곰솔-참나무류군집, 소나무-곰솔군집은 졸참나무, 상수리나무를 중심으로한 참나무류군집으로 변화될 것이며, 곰솔군집, 곰솔-사스레피나무군집, 소나무군집은 현상태를 유지할 것으로 판단되었다. 5개 군집의 토양산도는 pH 4.38~4.61로 산성토양이었으며, 유기물함량, 치환성양이온(C a++, Mg++, K+)함량은 전국토양의 평균치보다 낮은 상태로 불량하였다. 13년간의 식물군집구조와 토양특성변화를 살펴보면 종수, Shannon의 종다양도, 최대종다양도에 있어 1983년보다 1996년이 높아졌으며, 토양특성도 동일한 경향이었다.
        4,300원
        50.
        1995.08 KCI 등재 구독 인증기관 무료, 개인회원 유료
        대산공단과 군산공단의 대기오염에 의한 삼림피해현상을 연구하기 위하여 조사구를 각각 5개, 3개씩 설치하였다(1개 조사구 당 면적 500m2). 대산공단 삼림의 교목층 아교목층의 우점종은 소나무와 곰솔이었고 관목층에서는 진달래와 참나무류가 우점종이었다. 종다양도는 0.4859~0.9202 이었으며, 조사구간의 차이가 심하게 나타났다. 토양 pH는 4.67~5.12로 약산성이었다. 대산공단지역에서는 아직 대기오염에 의한 삼림의 피해가 심각하지 않은 것으로 나타났다. 군산공단삼림의 교목층 및 아교목층의 우점종은 곰솔과 소나무이었다. 종다양도는 0.8115~l.0983이었고 오염원과 가까운 조사구가 가장 낮게 나타났다. 토양 pH는 4.32~4.76으로 강산성이었다. 군산공단의 오염원 인근삼림은 울산공단과 유사한 피해양상으로 심각한 피해를 받고 있었다.
        4,600원
        51.
        2023.06 KCI 등재 서비스 종료(열람 제한)
        In this study, we investigated the characteristics of Volatile Organic Compounds(VOCs) emission from painting and printing facilities in the Pyeongdong industrial complex in Gwangju. In addition, the objective was to understand the distribution characteristics of VOCs in the ambient air in industrial complexes affected by painting and printing facilities. The painting facility mainly emitted toluene, acetone, butyl acetate, 4-methyl-2-pentanone, ethyl acetate, 1-butanol, methyl ethyl ketone, m,p-xylene, o-xylene, 4-ethyltoluene, ethylbenzene, 3-ethyltoluene, and 1,2,4-trimethylbenzene. The main emission components in printing facilities were methyl ketone, ethyl acetate, acetone, 2-propanol, toluene, heptane, and butyl acetate. Ethyl acetate, toluene, 2-butanone, acetone, butyl acetate, 2-propanol, xylenes, and 4-methyl-2-pentanone were detected in the ambient air of the Pyeongdong industrial complex, consistent with the VOCs emitted by painting and printing facilities. The average concentration of seasonal TVOCs followed an order of winter > fall > spring > summer, whereas the concentrations of daytime and nighttime TVOCs were generally higher at night than those during the day, and the wind speed was greater during the day than it was at night. Based on a factor analysis of VOCs in the ambient air of Pyeongdong industrial complex, it is considered that organic solvents used in coating, printing, and electronics manufacturing facilities, as well as diesel vehicle emissions played a major role.
        52.
        2020.05 KCI 등재 서비스 종료(열람 제한)
        This study analyses the characteristics of volatile organic compounds (VOCs) emissions from the painting and printing facilities, as well as ambient VOCs at industrial complexes in Gwangju. The major components of VOCs emissions from painting facilities were toluene, acetone, 2-butanone, ethyl acetate, ethyl benzene, o-xylene and m,p-xylene. The printing facilities mostly emitted ethyl acetate, 2-butanone, acetone and toluene. Aromatics (49.9%) and oxygenated VOCs (43.6%) were dominant in painting facilities, while oxygenated VOCs (92.7%) were the largest group in printing facilities. The total hydrocarbon concentration (THC) in printing facilities was approximately six times higher than in the painting facilities. The painting and printing facilities use many solvents. Their THC concentrations differed considerably depending on the type of prevention facilities. To reduce THC, it is necessary to improve the prevention facilities and operating conditions. The dominant species of ambient VOCs in industrial complexes were investigated with toluene, ethyl acetate, 2-butanone, ethyl benzene, m,p-xylene, butyl acetate, o-xylene, hexane and acetone. Factor analysis of ambient VOCs showed that the main sources of the VOCs were organic solvents used in painting, coating, and printing, as well as automobile emissions.
        53.
        2017.11 KCI 등재 서비스 종료(열람 제한)
        This study identified physical characteristics and aerosol particle sources of PM10 and PM2.5 in the industrial complex of Busan Metropolitan City, Korea. Samples of PM10, PM2.5 and also soil, were collected in several areas during the year of 2012 to investigate elemental composition. A URG cyclone sampler was used for collection. The samples were collected according to each experimental condition, and the analysis method of SEM-EDX was used to determine the concentration of each metallic element. The comparative analysis indicated that their mass concentration ranged from 1% to 3%. The elements in the industrial region that were above 10% were Si, Al, Fe, and Ca. Those below 5% were Na, Mg, and S. The remaining elements (1% of total mass) consisted of elements such as Ni, Co, Br and Pb. Finally, a statistical tool was applied to the elemental results to identify each source for the industrial region. From a principal components analysis (SPSS, Ver 20.0) performed to analyze the possible sources of PM10 in the industrial region, five main factors were determined. Factor 1 (Si, Al), which accounted for 15.8% of the total variance, was mostly affected by soil and dust from manufacturing facilities nearby, Factors 2 (Cu, Ni), 3 (Zn, Pb), and 4 (Mn, Fe), which also accounted for some of variance, were mainly related to iron, non-ferrous metals, and other industrial manufacturing sources. Also, five factors determined to access possible sources of PM2.5, Factor 1 (Na, S), accounted for 13.5% of the total variance and was affected by sea-salt particles and fuel incineration sources, and Factors 2 (Ti, Mn), 3 (Pb, Cl), 4 (K, Al) also explained significant proportions of the variance. Theses factors mean that the PM2.5 emission sources may be considered as sources of incineration, and metals, and non-ferrous manufacturing industries.
        54.
        2017.04 서비스 종료(열람 제한)
        Since there is no computer system for general management of dangerous and disaster prone facilities that handle dangerous substances and data for disaster prevention facilities in Industrial Complex of Korea, much manpower and time are required to discover risk factors and identify spreading of dangerous. This paper proposes an disaster prevention platform system based on sensor, scenarios for disaster response, collective Intelligence for detection of chemical disaster signs and effective initial response to disasters on Yeosu Industrial Complex.
        55.
        2017.01 KCI 등재 서비스 종료(열람 제한)
        Since there is no computer system for general management of dangerous and disaster prone facilities that handle dangerous substances and data for disaster prevention facilities in Industrial Complex of Korea, much manpower and time are required to discover risk factors and identify spreading of dangerous. This paper proposes an disaster prevention platform system based on sensor, scenarios for disaster response, collective Intelligence for detection of chemical disaster signs and effective initial response to disasters on Yeosu Industrial Complex.
        56.
        2016.12 KCI 등재 서비스 종료(열람 제한)
        Zeolite (FZ) prepared using coal fly ash from an Ulsan industrial complex was immobilized with polysulfone (PS) to fabricate PS-FZ beads. The prepared PS-FZ beads were characterized by scanning electron microscopy and Fourier transform infrared spectroscopy. The optimum ratio for preparing PS-FZ beads was 1 g of PS to 2 g of FZ. The removal efficiencies of Sr and Cu ions by the PS-FZ beads increased as the solution pH increased and nearly reached a plateau at pH 4. A pseudo-second-order model morel fit the adsorption kinetics of both ions by the PS-FZ beads better than a pseudo-first-order model. The Langmuir isotherm model fit the equilibrium data well. The maximum adsorption capacities calculated from the Langmuir isotherm model were 46.73 mg/g and 62.54 mg/g for the Sr and Cu ions, respectively. Additionally, the values of thermodynamic parameters such as free energy (ΔG˚), enthalpy (ΔH˚) and entropy (ΔS˚) were determined. The results implied that the prepared PS-FZ beads could be interesting an alternative material for Sr and Cu ion removal.
        57.
        2016.11 KCI 등재 서비스 종료(열람 제한)
        Concentrations of hydrogen sulfide in ambient air have been measured from January 2014 to June 2016 in a coastal area near the Ulsan National Industrial Complex. The measurement sites were 1 km, 2.6 km, 5.6 km, and 20 km away from a kraft pulp mill, which is located at the most southern edge of the complex. Concentrations above 0.4 ppb were monitored every 5 min and the highest concentration of the day was determined. From a total of 775 measurement days, hydrogen sulfide concentrations > 20 ppb were recorded on 36 and 38 days at the measurement site closest to the mill and the residential area 2.6 km away from the mill, respectively. At the site farthest from the mill, the concentrations were always 20 ppb lower than the malodor regulation for the residential area but sometimes higher than the odor recognition threshold for hydrogen sulfide. Although several emission sources of hydrogen sulfide have been published in the Pollutant Release and Transfer Register of Korea, the kraft pulp mill is considered to be the biggest contributor of atmospheric hydrogen sulfide in the southern coastal area of Ulsan.
        58.
        2016.09 KCI 등재 서비스 종료(열람 제한)
        The purpose of this study was to obtain the basic data needed to identify the impact of the odor, emitted from the Ochang Scientific Industrial Complex area on the surrounding residential areas by measuring and confirming odor compounds. The analysis showed that complex odors were diluted from around 4 to 1. The offensive odor measurement results showed that among the sites, site 1 was highest in sulfur compounds, site 2 was highest in toluene, site 3 was highest in trimethylamine, and site 4 was highest in buthylaldehyde. It cannot be decided to be odor-causing compounds for higher odor concentration because each odor substance has a different odor threshold value. According to the odor contribution analysis for each site, site 1, site 2, and site 4 contained high buthylaldehyde concentrations, and site 3 had a high level of trimethylamine. It could be determined that highly evaluated substances were main causes to result in substance for each site.
        59.
        2016.04 KCI 등재 서비스 종료(열람 제한)
        The objective of this study was to investigate the 16 priority polycyclic aromatic hydrocarbon (PAHs) concentrations and emission sources from the soils of three regions (north, mid-south, and east) in Jeollanamdo. Overall PAH concentrations in the east region were higher than in north and mid-south regions and 9.1 times higher for polluted areas. The results of the emission source study indicated that average Ant/(Ant+Phe) and InP/(InP+BghiP) ratios were 0.15-0.22 and 0.36-0.46, respectively, which indicated dominant pyrogenic sources in the three regions. For the InP/(InP+BghiP) ratio, various emission sources were shown in the east region where petrochemical facilities and oil storage tanks have been operated.
        60.
        2015.05 서비스 종료(열람 제한)
        There are a large number of the food companies in Gunsan National Industrial Complex, and the organic sludge generated in these industrial wastewater treatment plants are generally being dealt with ocean dumping methods. As this method will be prohibited from January 1, 2016, it is inevitable to select the method like the reclamation. All over the country, landfill is lacking, and become a target of public grievance since it is recognized as an abomination facility. Consequently it has problem to secure the new location. These reasons lead to increase the organic sludge disposal cost, and it needed to seek the economical and eco-friendly processing methods. This research is regarding the Solid Refuse Fuel technique which is dried and processed the organic sludge generated in Gunsan National Industrial Complex. With Solid Refuse Fuel technique, in the environmental, safety, efficiency and economical aspect, it can derive competitive production technology, promote the Solid Refuse Fuel business and finally build a nationwide network. Through this study, we can derive the optimal manufacturing process from the examination of properties of organic sludge and drying. CFBC is tested the efficiency of solid fuel by the combustion experiment. It is very significant that we develop the Solid Refuse Fuel technique with the sludge generated in food industrial waste treatment plant and derive new competitive manufacturing processes.
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