• Title/Summary/Keyword: 유보율

Search Result 29, Processing Time 0.021 seconds

Retention Ratio of Dredged Soil at Incheon Habour Route using Self-Weight Consolidation Test (인천지역 항로 준설토의 침강자중압밀시험에 의한 유보율 결정에 관한 연구)

  • Shin, Eun-Chul;Park, Young-Jin;Kang, Jeong-Ku
    • Journal of the Korean Geosynthetics Society
    • /
    • v.16 no.4
    • /
    • pp.57-66
    • /
    • 2017
  • Self-weight consolidation test and soil property of dredged soil at Incheon habour route were analyzed to determine the initial dredging reclamation amount, reclamation depth, and estimating the required time of self-weight consolidation with calculation of the final planned height of dredging reclamation site. The moisture content, void ratio and ratio of volume change with elapsed time after throwing were estimated through Yano's empirical equation. As a result, there was a less variation in elements when fine-grained soil content was low as similarly to the behavior of coefficient of sedimentation-consolidation, Cs and the highest variation was shown at the fine-grained soil content of 50%. The retention ratio according to the fine grained soil content that could reinforce the comprehensive aspect of retention ratio for each particle size presented in the standard of estimate for reclamation construction work was calculated and presented using the calculated ratio of volume change.

Estimation of Retained Rate in Open-water Sediment Disposal (개방수역 퇴적물 처리에서 유보율의 평가)

  • Shin, Hosung;Kim, Kyu-Sun
    • Journal of the Korean Geotechnical Society
    • /
    • v.31 no.11
    • /
    • pp.49-60
    • /
    • 2015
  • Open-water sediment disposal has many applications in costal construction. Dumping of sediment in open water can be divided into descending stage under water and sedimentation stage on the seabed, and retained rate is evaluated from analyzed results of these two successive stages. Descending particle cloud have two distinct thermal and swam phase, and trajectory equations for each phase are derived to describe settling velocity and radius of particle cloud. For sedimentation stage, a numerical simulator is used to calculate growth factors for particle fiction angle and current velocity. Retained rate is defined as a mass rate of remained sediment inside the circle which has a center at dumping point on the sea level and user-defined effective radius. Retained rate map for Singapore coast is presented with water depth of 20 m, current velocity of 0.0~1.5 m/s, and effective radius of 5 m. It will decrease sediment mass loss during disposal operation and minimize surrounding environmental pollution.

The Effects of the Previous Corporation Internal Reservation on the Current R&D Investment -Using EDU as a moderating variable & Verification through GBM model (법인의 전기 사내유보가 당기 연구개발 투자에 미치는 영향 - 교육훈련비의 조절변수 효과 및 GBM 모델을 통한 검증)

  • Yoo, Joon-Soo;Jeong, Jae-Yeon
    • Journal of the Korea Convergence Society
    • /
    • v.9 no.1
    • /
    • pp.9-20
    • /
    • 2018
  • The purpose of this paper is to analyze the effect of corporation internal reservation on R&D investment. It is to find how much effect the reflux tax has achieved through empirical analysis. In addition, education training expense was taken as a moderating variable to find the effectiveness of government policy. Furthermore, the study looked through the effect once again by using GMB model. According to the result counted by regression analysis, it could be concluded that the effect of both moderation and intervention had a significant effect and the variable of interest cost and welfare & benefit cost in model 1, 2 and 3 had a meaningful impact at the level of 99%. On the other hand, the previous corporate internal reservation failed to show any significant result in all types of models. Even in GBM model of convergence level applied to additional analysis, similar results came out.

The Determinants of Price Differential between Common and Preferred Stock (보통주와 우선주간의 가격괴리율 결정요인에 관한 실증분석)

  • Nam, Gi-Seok;Im, Chae-Chang
    • Management & Information Systems Review
    • /
    • v.28 no.3
    • /
    • pp.25-44
    • /
    • 2009
  • The purpose of this paper is to examine the determinants which cause a price differential between common and preferred stock. Prior studies have shown that variables like liquidity, size, the number of outstanding shares issued can explain the price differential between common and preferred stock price. Based on year 2006 through year 2008 data, we analyzed the determinants using regression model. Dummy variables representing large/small company and KSE/KOSDAQ respectively are added and analyzed as independent variables. The firm size, trade volume turnover, and the number of preferred shares to total outstanding shares were proved to make influence on the price differential under the 5% significance level. Especially, we have found the number of preferred shares to total outstanding shares provide the most strong relationship with the price differential. This means that a high ratio of preferred stock to total outstanding shares leads to relatively high value of common stock and causes a big price differential.

  • PDF

한약재 표백제 단속 잠정 유보 - 식약청, 국내외 공통적용 기준 마련중

  • 한국생약협회
    • The Hankook-Saengyark Bo
    • /
    • no.243
    • /
    • pp.2-2
    • /
    • 2001
  • 녹용, 회분율 35$\%$ 이하, 식약청 구랍 27일 고시 - 무공해 임산물 생산지원 강원도, 내년 45억 투입 - 주왕산에 보호야생동물 6종 자생확인 - '수목 산야초 연구센터' 개설 충북도, 자생식물 소득자원화 추진 - '약효있다 광고하면 식품아닌 의약품'

  • PDF

Estimation of soil Quantity and Environmental Effect on Dredged Soil (준설오니의 토량 산출 및 성분분석)

  • 신은철;오영인
    • Journal of Korea Soil Environment Society
    • /
    • v.5 no.2
    • /
    • pp.13-21
    • /
    • 2000
  • Detention basin is the temporary holding pond of treated water prior to flow out to the sea. It is very common to dredge the soil from the bottom of detention basin to keep up the water holding capacity. In this study, the amount of volume reduction of dredged soil from detention basin was estimated based on the laboratory test results. The percentage of soil particles in dredged organic soil is about 12.5∼21.9% by weight. The content of heavy metal and environmental effect for dredged soil itself and solidified dredged soil were analysed and the results are meet the standards of environmental requirement.

  • PDF

Laboratory Experiments for sediment deposit around sandy revetment (호안주변에 유입되는 유사 거동 분석을 위한 실험연구)

  • Kim, Dong Hyun;Kim, Kyu Sun;Cho, Jae Nam;Lee, Seung Oh
    • Proceedings of the Korea Water Resources Association Conference
    • /
    • 2015.05a
    • /
    • pp.376-376
    • /
    • 2015
  • 거주지나 공장부지와 같은 이용 가능한 토지를 만들기 위하여 해안 지역을 매립하는 토목공사가 전세계 곳곳에서 이루어지고 있다. 매립공사에서 매립토량의 결정은 경제성 부분에서 매우 중요하나 국내는 어항 항만 설계기준(2014)에 의하여 단순히 입경별로 유실율과 유보율을 산정하여결정하고 있는 실정이다. 따라서 본 연구에서는 원형의 매립호안 주변의 유사 거동을 분석하기 위하여 수리실험을 통한 연구를 진행하였다. 수리실험은 길이 13.0 m, 폭 5.0 m, 수위 0.10 m의 직사각형 단면의 개수로에서 수행되었으며, 실험에 사용된 유사는 주문진사($d_{50}=1.0mm$)와 안트사이트($d_{50}=0.44mm$)를 사용하였다. 원형 호안은 방수처리가 되어있는 목재로 제작하였고 두 가지 유사 모두 매립지역에서 형성되는 모래의 형상은 차이를 보였고 일정량의 유사가 호안 하류측에 쌓이는 것으로 나타났다. 선행 연구와 달리 호안에서 형성되는 모래의 이송된 형상을 관측하였다. 향후 모래 유입 위치를 달리하여 퇴적된 모래의 형성을 정량적으로 관측이 가능하다면 매립공사의 경제성을 높일 수 있을 것이라 기대된다.

  • PDF

한국제지 50주년 발자취 - 산은 푸르게 경영은 투명하게-조림 1위 기업

  • Kim, Sang-Ho
    • 프린팅코리아
    • /
    • s.71
    • /
    • pp.126-127
    • /
    • 2008
  • 올해로 창립 50주년을 맞은 한국제지는 건실한 성장으로 지난해 매출 4000억 원을 돌파한 인쇄용지 전문생산기업이다. 지난 1958년 설립 이래 다양한 인쇄용지를 개발하고 품질제일주의 정신으로 국내 인쇄용지 시장을 선도해 왔으며 2006년에는 고급 복사지 브랜드 '하이퍼 CC'를 출시하여 국내 복사지 시장 진화를 선도하는 등 과감한 마케팅을 시도하고 있다. 재무구조도 우수, 유보율(자본금 대비 잉여금 보유비율)이 1000% 이상에 이르는 등 안정적이고 신용도가 높은 우량기업으로 굳게 자리매김했다. 지난 2월 50주년을 맞아 한국제지는 국민기업으로서 역사에 기억될 수 있도록 창의적인 사고와 도전정신을 앞세워 새로운 50년을 준비하자고 다짐했다. 50주년 기념행사로 사진으로 보는 한국제지 발전사 50년 전시회 관람, 다과회 등 의미 있는 행사들이 진행되었으며, 노동조합의 주관으로 한마음축제가 열려 새로운 50년을 향한 힘찬 출발을 자축하기도 했다. 한국제지 창립 50주년을 맞아 사진으로 50년사를 되돌아 본다.

  • PDF

The Effect of Allocation to Third Parties in Increase of Capital on Stock Price of KOSDAQ Firms (코스닥기업의 제3자 배정 증자가 주가에 미치는 영향)

  • Cho, Sang-Kwon;Kang, Ho-Jung
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.13 no.4
    • /
    • pp.1640-1647
    • /
    • 2012
  • The allocation to third parties in increase of capital is increasing in KOSDAQ firms. With this trend, they cause many problems which involves stock price manipulation. Under this condition, this study analyzes stock price reaction by event study to 197 cases of 81 KOSDAQ companies that allocated to third parties in increase of capital between the year of 2007 and 2009. And we find determinants of cumulative abnormal return by using multiple regression. Results of this research are as follows. First, in case of excess return of (-5, +5), it reveals positive excess return significantly at 1% significance level during 4 days before payment day(event day). But it reveals negative excess return significantly at 1% significance level during 5 days after payment day. Second, in case of excess return of (-40, +40), it reveals positive excess return significantly at 1% significance level during 40 days before payment day(event day). But it reveals negative excess return significantly at 1% significance level during 40 days after payment day. Third, in case of excess return of (0, 1 year), it reveals negative excess return significantly at 1% significance level during 1 year after payment day. Fourth, significant determinant of cumulative abnormal return to (-5, +5) was firm size with positive effect. Significant determinants of cumulative abnormal return to (-40, +40) were reserve ratio and debt ratio. Reserve ratio has positive effect But debt ratio has negative effect. Significant determinants of cumulative abnormal return to (0, 1 year) were firm size, debt ratio, reserve ratio. equity ratio to large shareholder. Firm size, debt ratio, equity ratio to large shareholder have negative effect. But reserve ratio has positive effect.