• 한국환경농학회지
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• 제41권2호
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• pp.101-107
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• 2022

BACKGROUND: Soil amendment was necessary applied for the sand that had been used to root zone of green ground in golf course because of its low water retention power and cation exchangeable capacity. This study was conducted to evaluate the effect of the mixed ratio of peat moss and coconut coir as soil amendment materials on the soil physicochemical properties applied to rootzone based on sand. METHODS AND RESULTS: The soil amendments were blended at 0, 3, 5, 7 and 10% by soil volume. The pH in the peat moss treatment was lower than that of control (0% soil amendment), and pH and electrical conductivity (EC) in the coconut coir were higher. The blending ratio of peat moss was negatively correlated with pH of rootzone soil (p<0.01), and that of coconut coir positively with EC (p<0.01). As compared with control, capillary porosity, the physical factors such as air-filled porosity, total porosity, and hydraulic conductivity of rootzone soil were increased by applying peat moss and coconut coir. For correlation coefficients between percentage of soil amendments and soil physical factors, peat moss and coconut coir were positively correlated with porosity and hydraulic conductivity (p<0.01). CONCLUSION(S): These results indicated that the application of peat moss and coconut coir affected on the change of physicochemical properties of rootzone soil, and improved soil porosity and hydraulic conductivity.

• 한국지하수토양환경학회지:지하수토양환경
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• 제28권5호
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• pp.36-50
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• 2023

Soil health can deteriorate through both contamination and remediation. Accordingly, revitalization processes are needed to reuse or recycle the remediated soil. The study was conducted to assess the changes in soil health parameters of heavy metals-contaminated soil during soil washing process. In addition, unit processes were proposed to improve the quality of the remediated soil relevant to its reclamation purposes, such as agricultural and forest lands. A total of 21 indicators were used to determine whether the soil health was degraded or recovered. The performance of 6 amendments in improving soil health was quantitatively evaluated according to their dosage and application duration. Finally, the experimental results were assessed by simple regression analyses to determine the statistical significance and relative performance of each amendment. The results indicated that 18 health indicators out of 21 deteriorated through the soil washing process. Based on the results, it is recommended that several effective amendments be complementarily combined and applied in real applications because use of single amendment does not likely improve the quality of remediated soils.

• 농업과학연구
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• 제50권4호
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• pp.713-721
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• 2023

Soil acidification challenges global food security by adversely influences soil fertility and agricultural productivity. Carbonized agricultural residues present a sustainable and ecofriendly way to recycle agricultural waste and mitigate soil acidification. We evaluated the effects of organic amendments on lettuce growth and soil chemical properties in two soils with different pH levels. Carbonized rice husk was produced at 600℃ for 30 min and rice husk was treated at 1% (w·w^-1). Carbonized rice husk increased soil pH, electrical conductivity, total carbon content, and nitrogen content compared with untreated and rice husk treatments. Furthermore, this study found that lettuce growth positively correlated with soil pH, with increasing soil pH up to pH 6.34 resulting in improved lettuce growth parameters. Statistical correlation analysis also supported the relationship between soil pH and lettuce growth parameters. The study findings showed that the use of carbonized rice husk increased the constituent elements of lettuce, such as carbon, nitrogen, and phosphate content. The potassium content of lettuce followed a similar trend; however, was higher in acidic soil than that in non-acidic soil. Therefore, improving the pH of acidic soil is essential to enhance agricultural productivity. It is considered advantageous to use agricultural residues following pyrolysis to improve soil pH and agricultural productivity.

• 기록학연구
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• 제81호
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• pp.45-87
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• 2024

본 연구는 「정보공개법」의 개정 연혁 분석과 정보공개 전문가 면담을 통해, 「정보공개법」을 중심으로 한 정보공개제도의 개선방안을 논하는 것을 목적으로 한다. 먼저, 「정보공개법」 제정부터 오늘까지의 개정 연혁과 내용을 분석하였고, 이를 통해, 알권리 확대의 측면에서 긍정적 개정을 만들어왔음에도 불구하고, 모두 운영적 측면에 그치고 있었으며, 비공개대상정보를 판단하는 기준에 대한 개정은 이루어지지 않았음을 확인하였다. 면담연구는 「정보공개법」의 성과, 문제점, 개선점의 세 영역으로 구성하였고, 분석은 각 영역별 내용을 세분류하고, 이를 다시 주제어로 정리하는 방식으로 수행하였다. 결론에 갈음하여, 본 연구는 정보공개범주의 확대, 비공개대상정보 세분화, 정보부존재 불복절차의 확보, 위원회 실효성 증대, 처벌 및 징계 규정의 도입, 정보공개심판원의 신설, 정보공개청구권 오남용 방지를 위한 시스템적 통제, 「공공데이터법」과 「정보공개법」의 통합 등 여덟 가지 개선방안을 제안하였다.

• 한국중재학회지:중재연구
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• 제16권1호
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• pp.121-151
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• 2006

As globalisation extends its effect and particularly following China's accession to the World Trade Organization(WTO) in 2001, ever greater numbers of international transactions will feature a Chinese party. China has certainly made efforts in recent years to rectify law problem. While conducting business in China, foreign companies occasionally find themselves embroiled in disputes with Chinese individuals and companies. As foreign businesses invest in the extraordinary market opportunities in China, international arbitration has also become the preferred method for handling disputes with Chinese partners or with other foreign corporation over operations in China. The new Arbitration Rules of the International Economic and Trade Arbitration Commission(CIETAC) came into force on 1 May 2005. The new rules represent a major overhaul of CIETAC arbitration procedures and are sure to enhance CIETAC's position as a leading player in the resolution of China-foreign business disputes. The changes are significant for all companies doing business in China. So, this article investigated some amendments on the basis of 2000 Rules.

• 유통과학연구
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• 제2권2호
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• pp.109-118
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• 2004

The number of business incubator (BI), introduced in Korea in the early 90's, has grown rapidly in the last 10 years, reaching 342 by 2002. Most of the incubator was supported financially by the Small and Medium Business Administration (SMBA), and 83% of them are run by college or university. To develop successful plans for college business incubator, we studied the relationship between a college incubator and its tenants through a systematic questionnaire, and compared royalty systems of four college BI's. It was found out that the tenants wants more flexible advisor system and closer relationship with the professors to solve the technical difficulties. The royalty system is important for BI's to survive without the financial assistance from the government, but the royalty systems of the four college BI's studied in this report have some practical shortcomings and needs amendments.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2007년도 추계학술대회논문집
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• pp.783-787
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• 2007

Nowadays, vehicle becoming necessity is increasing gradually and is main cause of environmental problem. The current automobile noise measurement test method such as ISO 362 which have been used many countries contribute seriously to enforce the regulation of the noise rigidly and actively study vehicle's noise, using that method. However, the amendment of ISO 362 was completed under the international agreement due to the changes in vehicle's techniques and road conditions. In this study, the difference between the current ISO 362(or ECE R51) and new ISO 362(or new ECE R51) is estimated by the test using the practical car producing domestically because the Korean manufacturer have to be interested in new test method.

• 한국농공학회:학술대회논문집
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• 한국농공학회 1998년도 학술발표회 발표논문집
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• pp.473-478
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• 1998

Dead animals amended with agricultural rersidues are utilized ai a compost to promote soil fertility and reduce environmental pollution by traditional methods of livestock mortalities. The full-scale bin composting swine mortality in roofed system with three amendments was very successful in reaching sufficient temperature above 55$^{\circ}C$ long enough for pathogen kill. The average temperature of tile compost material in dead swine amended with corn stover increased rapidly to 64$^{\circ}C$ on the 2nd day after primary composting and dropped to near ambient temperature on the 140th day of composting. The composting temperature of corn stover and wheat straw is more efficient for swine carcass composting than that of sawdust.

• 한국주거학회논문집
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• 제16권2호
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• pp.67-74
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• 2005

Condominium management ask for planning ability and special knowledge in order to solve the troubles of a condominium. But all the HOA has not ability or knowledge of condominium management, so administration support to condominium management came to be given to HOA. In this study, we divided the administration policies on condominium management as follows; (1) instruction about an advertisement and a contract (2) instruction about management (3) instruction about maintenance (4) instruction by the local government (5) legislation about condominium management. Most of the condominium management policy has been programmed by government, such as legal amendments and advises by administrative inspection. But these condominium management policies have limitations to support HOA, so it is need to correspond to local government. In advanced local governments, administrative policies were materialized by the report of a housing related council. HOA: Home Owners Association

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2006년도 춘계학술발표대회 논문집
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• pp.75-78
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• 2006

Ministry of Construction and Transportation approved amendments to the Seongnam City that permits the redevelopment of Seongnam City in December 2001, The city will begin the first of three phases in the redevelopment which will be spread over more than ten years. This study aims at inquiring into the design process of the 'Seongnam Redevelopment Exhibition Center' project by focusing on the role of the architectural and exhibitional designer. In terms of architectural approach, 'Seongnam Redevelopment Exhibition Center' will play a role environmentally as a street object, and functionally as an exhibitory, selling, public, educational and cultural space for Seongnam citizens. The plan of exhibition space, cultural space, rest area and office space is not independent or contradictory but organical in a three-floor composition.