• 제목/요약/키워드: Budget

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낙동강 하구역의 부유사 물질수지예측 (Prediction of Suspended Solid Budget in Nakdong River Estuary)

  • 류성훈;김경회;이인철
    • 해양환경안전학회지
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    • 제17권3호
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    • pp.185-189
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    • 2011
  • 본 연구는 낙동강 하구역의 사주지형 변화를 예측하기 위한 기초적 연구로서 하천유량의 변화에 따른 부유사의 물질수지에 대하여 검토하였다. 낙동강 하구역의 부유사 물질수지는 갈수기시 60,708 kg/day가 유입하고, 홍수기는 306,892 kg/day가 외해를 통하여 유출하는 것으로 산정되었다. 낙동강 하구역은 전반적으로 갈수기 및 평수기에 부유사의 유입, 홍수기에 부유사의 유출이 반복 되지만, 사주지형 주변에서는 부유사의 유입과 유출 거동이 복잡하게 나타나 장기 지형변동 모니터링이 필요한 것으로 나타났다.

서비스 비용을 고려한 연속적 재고관리시스템 해결을 위한 근사법 (An Approximation Approach for Solving a Continuous Review Inventory System Considering Service Cost)

  • 이동주;이창용
    • 산업경영시스템학회지
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    • 제38권2호
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    • pp.40-46
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    • 2015
  • The modular assembly system can make it possible for the variety of products to be assembled in a short lead time. In this system, necessary components are assembled to optional components tailor to customers' orders. Budget for inventory investments composed of inventory and purchasing costs are practically limited and the purchasing cost is often paid when an order is arrived. Service cost is assumed to be proportional to service level and it is included in budget constraint. We develop a heuristic procedure to find a good solution for a continuous review inventory system of the modular assembly system with a budget constraint. A regression analysis using a quadratic function based on the exponential function is applied to the cumulative density function of a normal distribution. With the regression result, an efficient heuristics is proposed by using an approximation for some complex functions that are composed of exponential functions only. A simple problem is introduced to illustrate the proposed heuristics.

예산의 계약이 있는 다품종 연속적 재고 관리 문제에서 추정을 통한 해법 (An Approximation Approach for A Multi-Product Continuous Review Inventory Problem with Budget Constraint)

  • 이동주;유재욱;이문수
    • 산업경영시스템학회지
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    • 제31권4호
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    • pp.134-139
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    • 2008
  • Most approaches for continuous review inventory problem need tables for loss function and cumulative standard normal distribution. Furthermore, it is time-consuming to calculate order quantity (Q) and reorder point (r) iteratively until required values are converged. The purpose of this paper is to develop a direct method to get the solution without any tables. We used approximation approaches for loss function and cumulative standard normal distribution. The proposed method can get the solution directly without any iterative procedure for Q, r and without any tables. The performance of the proposed approach is tested by using numerical examples. The budget constraint of this paper assumes that purchasing costs are paid at the time an order is arrived. This constraint can be easily replaced by capacity constraint or budget constraint in which' purchasing costs are paid at the time an order is placed.

수소.연료전지 연구개발 투자현황 분석 (Analysis of R&D Investment for Hydrogen and Fuel Cell)

  • 박노언;김형욱
    • 한국수소및신에너지학회논문집
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    • 제21권2호
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    • pp.143-148
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    • 2010
  • Research and Development (R&D) investment of hydrogen and fuel cell, funded by government from 2007 to 2008 in Korea, has been analyzed. R&D investment of hydrogen and fuel cell in 2008 would see 9% and 29% of total budget in the field of renewable energy, respectively. It was found that R&D investment is mainly dependent on mission of Ministry in Korea. Basic and apply research would be mainly invested by Ministry of Education, Science and Technology (MEST), while development research would be conducted by Ministry of Knowledge Economy (MKE). In R&D investment by performer, hydrogen technology would be conducted by government-funded institute and university. It was also shown that funds for hydrogen production have been much supported than hydrogen storage. Meanwhile, fuel cell would be mainly conducted by major companies. It was also shown that funds for proton exchange membrane fuel cell (PEMFC) have been much invested than other technology in fuel cell.

지표면 열수지의 강수응답성에 관한 연구 (The Response of soil surface heat budget to the precipitation)

  • 황수진;진병화
    • 한국환경과학회지
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    • 제3권2호
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    • pp.89-100
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    • 1994
  • It is very important to assess accurately the terms which are included in the heat budget equation of soil surface because they are used in the UM and miso-scale circulation modeling as well as in the micrometeorological studies. Each terms in the heat budget equation change according to the soil moisture content. So, it is necessary to specify clearly the relations between soil moisture content and these terms. Special experiment with micrometeorological measurements was executed to study these relations at Environmental Research Center of Tsukuba University, Japan. The results are as follow: 1. The soil moisture contents of 1 cm and 4 cm depth are oscillated with one day Period in drying process and the amplitude of variation of 1 cm depth is greater than that of 4 cm. 2. Increase in soil moisture contents due to precipitation result in decrease of albedo with step function. 3. Sensible heat is in reverse proportion to the soil moisture content and latent heat is in direct proportion to it. Latent heat is more sensitive than sensible heat according to the soil moisture variation. Net long wave radiation have high correlation with soil moisture. 4. Comparing with the radiative term with the flux term in wetting process due to precipitation, the energy transfer of the aero and thermodynamic flux is greater than that of the radiative heat flux.

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산재예방예산-산재율 모델의 감쇠 및 탄성 특성이 제어성능에 미치는 영향 (Effects of Damping and Elastic Nature on the Control Performance of a Safety Budget-Industrial Accidents Model)

  • 최기흥
    • 한국안전학회지
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    • 제28권1호
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    • pp.6-11
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    • 2013
  • In this study, the effect of damping and elastic nature on the control performance of a safety budget-industrial accident rate model in Korea is examined first. The effectiveness of such dynamic model in establishing safety policies is shown with a simple proportional-integral(PI) feedback control mechanism. Control performance of the safety system model is explained in view of maximizing the effect of IAPF and minimizing the absolute amount of IAFP. Control performance is then evaluated and proved to be effective to prevent and reduce the industrial accidents. Implications in feedback control of a safety system model suggested to optimization of safety policies are also explored. Without proper restructuring of the safety system, it would not be possible to hit the target industrial accident rate. Even if the control objective is met, the amount of industrial accident prevention fund required to reduce the industrial accident rate from the current level to the target level would be far beyond the social consensus.

Performance Test for the SIGMA Communication System

  • Jeong, Seonyeong;Lee, Hyojeong;Lee, Seongwhan;Shin, Jehyuck;Lee, Jungkyu;Jin, Ho
    • Journal of Astronomy and Space Sciences
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    • 제33권4호
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    • pp.335-344
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    • 2016
  • Scientific CubeSat with Instruments for Global Magnetic Fields and Radiations (SIGMA) is a 3-U size CubeSat that will be operated in low earth orbit (LEO). The SIGMA communication system uses a very high frequency (VHF) band for uplink and an ultra high frequency (UHF) band for downlink. Both frequencies belong to an amateur band. The ground station that communicates with SIGMA is located at Kyung Hee Astronomical Observatory (KHAO). For reliable communication, we carried out a laboratory (LAB) test and far-field tests between the CubeSat and a ground station. In the field test, we considered test parameters such as attenuation, antenna deployment, CubeSat body attitude, and Doppler frequency shift in transmitting commands and receiving data. In this paper, we present a communication performance test of SIGMA, a link budget analysis, and a field test process. We also compare the link budget with the field test results of transmitting commands and receiving data.

국가능력에 기초한한 군사력 건설방향 (The Direction of Capability-based Military Build-up)

  • 이필중
    • 한국국방경영분석학회지
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    • 제27권2호
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    • pp.88-109
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    • 2001
  • Defense minister of the ROK, Kim Bong-sin suggested that the ROK′s military build-up policy will change from "scenario-based" to "capability-based". Entering the 1990s the ROK′s military build-up policy met difficulties to accomplish its goal, modernizing and strengthening of its force structure and weapon systems because of limited budget. The concept of capability-based military build-up could commit a fault in estimating total amount of defense resources required for force planing. This is because that the total amount of defense resources related to force plan for the 15 years is fixed to embody military strategy. The concept of capability-based military build-up plays a role as a constraint in choosing a military strategy. This has no connection with military build-up. Therefore the resources of mid-term military build-up program and scale of annual defense budget could be affected by the situations of its national economy. In this respect, the scale of annual defense budget and resources could be changed in accordance with national economic condition, however, the total amount of resources required to build-up military force for 15 years, namely resources of military force planing requirement for 15 years, is given already for the accomplishment of military strategy. The purpose of this study is to seek a direction of the ROK′s military build-up policy in a viewpoint of capability-based military build-up.

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지방교육 복지재정의 실태 분석 연구 -부산광역시교육청 교육비특별회계를 중심으로- (Local Education Welfare Financial Analysis - Focused on Busan Metropolitan City Office of Education Special Account)

  • 이영내;주철안
    • 수산해양교육연구
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    • 제26권6호
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    • pp.1245-1260
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    • 2014
  • This paper is to analyze the size of Busan Metropolitan City Office of Education Special Account and Educational finance Changes based on the welfare types from 2009 to 2013. It also identifies the impact on welfare finance education programs that target low-income students. The size of Education welfare finance was increased to 355.3 billions (2013) from 90.9 billions (2009), with the last 5 years average annual growth rate as high as 41.9%. But there has been relative decrease in the size of selective welfare budget for low income students such as tuition assistance & IT support to low-income and vulnerable groups, rural schools support to improve facilities, education welfare priority program. The finding suggests that the size of selective welfare budget should not be decreased due to universal education welfare policy. If it is to expand the universal education welfare, then there should be redesigning of local educational finance and further revenue for local education finance to keep the budget for the education welfare target groups.

The Theoretical Features of Budgeting in the Corporation

  • VYBOROVA, Elena Nikolaevna
    • 융합경영연구
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    • 제9권1호
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    • pp.25-40
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    • 2021
  • Purpose: The forecasting is the likelihood scientifically proved judgment about the prospects, the possible conditions of this or that phenomenon in the future and (or) about the alternative ways and the means of their realization. To adapt the instruments of budgeting for the analysis cash flow of company. Research design, data and methodology: The creates the budget of cash flow were carried out on the basis of data of the report for the 2017 of corporations POSCO and in the first half of the 2018 Daewoo Shipbuilding & Marine Engineering of South Korea. Results: The simultaneous use of budgeting techniques and the simple financial analysis allows to systematize the transactions, to identify the main problem areas in the movement cash flows. Therefore, working capital analysis is to determine the limits of their fluctuations in view of the changes in the business processes. Conclusions: In the pedagogical context solved the features of budgeting in the part evaluation current assets, its financing, its elements: the cash, the debtor. In the process of budgeting of cash flow, in credit budget, in financial budget we can see the main indicators: the current assets, the functioning capital, the optimum number of debtors, the optimum amount of cash and another.