• Journal of the Korean association of regional geographers
• /
• v.9 no.1
• /
• pp.77-85
• /
• 2003

The purpose of this study is to critically evaluate the DPD development plan of Kyungpook province, which was established in 1996 and slightly revised in 1997 in terms of a theoretical framework, fair distribution and ecological sustainability, and the feasibility of capital supply of the proposed plan. The early part of the proposed plan introduces various theories and approaches developed in regional (or local) development planning as a general after the 1970s. However, the theories and approaches mentioned are not used as a guideline to establish the DPD development plan of Kyungpook province as a historically developed particular place. Most of the plans were tourism-oriented and did not seriously take the local characteristics into account. All the DPDs of Kyungpook province are located in the upper parts of the Nakdong River basin. So those regions are ecologically vulnerable. But a lot of problems remain concerning the environmental impacts of the proposed development plan. In terms of fair distribution and ecological sustainability, it seems that the DPD development plan was routinely made by a handful of professors and administrators, based on a standard format of regional (or local) development as a genera]. Finally, capital is the key factor for successfully implementing the DPD development plan. It came from the national and local government and private investors. The government have generally financed the construction of infrastructures, not profit-oriented projects such as tourism and resort businesses. However, the feasibility of private capital was not carefully examined in the plan.

• Proceedings of the Korean Operations and Management Science Society Conference
• /
• 2003.11a
• /
• pp.166-169
• /
• 2003

일정한 시간이 지나면 제품으로서의 가치가 사라지게 되는 단일기간 재고품목들은 생산된 직후 전량 각 고객들에게 주어진 납기에 맞추어 효율적인 분배가 요구된다. 본 연구에서는 고객들은 다수 종류의 제품을 주문할 수 있으며 제품종류별 분리배송을 허용하는 상황에서 생산비, 수송비, 납기위반비, 차량고정비를 최소화하기 위한 생산순서 및 차량경로를 수립함을 목적으로 한다. 이에 대한 해법으로써 진화개미해법을 개발하였다. 개발된 해법의 성능평가를 위해 각 고객의 위치, 주문 제품 종류, 주문량들을 다르게 하여 구축한 실험문제에 대하여 유전알고리듬해법과 비교실험을 수행하였다.

• Journal of the Korea Safety Management & Science
• /
• v.11 no.3
• /
• pp.139-148
• /
• 2009

In a real-life supply chain environment, demand forecasting is usually represented by probabilistic distributions due to the uncertainty inherent in customer demands. However, the customer demand used for an actual supply chain planning is a single deterministic value for each of periods. In this paper we study the choice of single demand value among of the given customer demand distribution for a period to be used in the supply chain planning. This paper considers distributed multi-echelon supply chain and the objective function of this paper is to minimize the total costs, that is the sum of holding and backorder costs over the distribution network under the service level constraint, by using demand selection scheme. Some useful findings are derived from various simulation-based experiments.

• Proceedings of the KSRS Conference
• /
• 2009.03a
• /
• pp.327-330
• /
• 2009

해양위성센터는 2009년 발사예정인 통신해양기상위성(COMS)의 해양위성관측자료의 원활한 수신 및 분석자료의 생산, 관리, 분배를 담당하고 있다. 정지궤도해양위성 위성자료수신시스템을 비롯하여, 위성자료전처리시스템, 해양위성자료처리시스템, 자료관리시스템, 통합감시시스템등을 통해서 수신/처리하는 다양한 위성자료를 해양 연구자들이 쉽게 찾아 사용할 수 있도록 위성자료분배시스템을 구축하고 있다. 위성자료의 활용성 증대 및 확산 유도를 위한 위성자료 DB 및 온라인 배포 사이트를 구축하며, 위성자료배포현황 관리를 위한 관리자 페이지도 운영할 계획이다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
• /
• autumn
• /
• pp.509-512
• /
• 2003

The Critical Path Method(CPM) is an effective tool used for planning and scheduling. One of strong point in the CPM is what can calculate float. Float is able to prolong without having an effect on overall schedule of project, however concept and scope about ownership is not definite, because it is a by-product of project. Thus participants have had many dispute in using float because of their interests. In recent years, a few theories have evolved in an attempt to solve this problem. But the prior research did not make a reasonable distribution of float because their criteria of distribution was based on ratio for total project time. Actually, an application of float is achieved by participant's delay risk. Therefore. this paper proposes criteria for float distribution using delay risks, and the framework for the assessment of the delay risks.

• Korean Chemical Engineering Research
• /
• v.46 no.2
• /
• pp.316-329
• /
• 2008

Recently the increased attention pays on the processing of multiple, relatively low quantity, high value-added products resulted in adoption of batch process in the chemical process industry such as pharmaceuticals, polymers, bio-chemicals and foods. As there are more possibilities of the improvement of operations in batch process than continuous processes, a lot of effort has been made to enhance the productivity and operability of batch processes. But the chemical process industry faces a range of uncertainties factors such as demands for products, prices of product, lead time for the supply of raw materials and in the production, and the distribution of product. And global competition has made it imperative for the process industries to manage their supply chains optimally. Supply chain management aims to integrate plants with their supplier and customers so that they can be managed as a single entity and coordinate all input/output flows (of materials, information) so that products are produced and distributed in the right quantities, to the right locations, and at the right time.The objective of this study is to solve the purchase, distribution, production planning and scheduling problem, which minimizes the total costs of production, inventory, and transportation under uncertainty. And development of SCM model in chemical industry including batch mode operations. Through that, the enterprise can respond to uncertainty. Also integrated process optimal planning and scheduling model for manufacturing supply chain. The result shows that, the advantage of supply chain integration are quality matters seen by customers and suppliers, order schedules, flexibility, cost reduction, and increase in sales and profits. Also, an integration of supply chain (production and distribution system) generates significant savings by trading off the costs associated with the whole, rather than minimizing supply chain costs separately.

• Journal of the military operations research society of Korea
• /
• v.35 no.2
• /
• pp.1-14
• /
• 2009

During wartime, the Air Force have to plan where, and how much, and what need to be distributed to surrounding local area from a chosen central bases. Each base, which has surplus more than needed amount of a certain material collected from near area of the base, is expected to distribute such surplus to other bases in shortage of it. By sending such surplus to other bases in shortage of the material, every base may get sufficient amount of all kinds of materials needed for each base during wartime. Because number of items of materials needed in each military bases during wartime are usually quite large and the frequencies of delivery from a place to other place are also pretty large if each item is delivered from a surplus place to other places in shortage, the Head Quarter of Air Force or the Logistics Command will face to difficulty to decide a reasonable delivery plan between bases for efficient and fast allocation of all materials needed to all bases during wartime. Therefore, this study suggests a solving algorithm with an established TC (transfer center: collecting and distributing center for all materials) to solve such a distribution and transportation problem.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.39C no.11
• /
• pp.1050-1067
• /
• 2014

CAS(Close Air Support) is aircraft attack against hostile targets that are in close proximity to friendly forces. Immediate CAS is the mission that attack unplanned targets, and especially the distribution of suitable aircraft assets makes huge effect on the result of immediate CAS mission. But It is hard to find a previous studies on immediate CAS sortie distribution with aircraft suitability. This study suggests a methodology with aircraft suitability for immediate CAS sortie distribution. The methodology consists of 3 steps. Firstly, we analyze target information for situational awareness. Secondly, we calculate each aircraft's suitability value per each target based on the result of previous analysis. Lastly, we suggest immediate CAS sortie distribution based on the aircraft adoptability value to a decision maker. This methodology will provide not only quantitative analysis, but also decision making of immediate CAS sortie distribution more timely and effectively.

• Proceedings of the Korean Institute of Communication Sciences Conference
• /
• 2006.07a
• /
• pp.376-376
• /
• 2006

• Magazine of the Korean Society of Agricultural Engineers
• /
• v.31 no.2
• /
• pp.54-65
• /
• 1989

지난 40년간 한국에서는 농업생산 특히 쌀 생산의 가속화를 위한 노력으로서 관계사업에 큰 비중을 두어 왔다. 따라서 관계건설과 농지개량에대한 투자는 괄목할 만큼 신장되어 1960년 대 이래 총투자액은 미화 61억달러에 달하고 있다. 그 결과 관계에 대한 잠자력과 관계면적은 크게 확장되어 지난 40여년간 순관계면적은 1945년의 188.200ha로부터 1988년의 195.750ha로 증가 되었으며 이 숫자는 한구구 총 수면적의 73%에 이르는 면적이다. 한국에는 농업수자원의 개발과 관리를 계획, 실시하는 임무가 부여된 국가기관이 있다. 그러나 이에 관련되는 국가수준의 기관이 하나이상이므로 관련되는 기관간의 통합이 문제로 제기되고 있다. 이러한 문제는 얼마간 인식디되고 있지만 아직도 심각하게 남아 있다. 농지개량조합 농촌근대화촉진법에 의하여 조직되고 운영되고 있다. 각 조합에서는 관계관리에 대한 정책, 관계수 분배계획 수자원관리 등을 담당하는 농민관계단체인 흥농계가 조직되고 있다. 농가수준에서의 관계개발 및 관리에 관련되는 문제점 및 주요쟁점은 다음과 같음을 확인할 수 있었다. 1. 관계조직 및 물 사용의 저효율 2. 몽리 구역내의 부과 합리화 및 징수방법 3. 수제의 부과 합리화 및 징수방법 4. 현재의 낡은 관계조직 5. 관계시설을 효율적으로 운영, 유지관리 하기위한 훈련된 인력 6. 관련 기관간의 통합 한국의 현 경제성장 단계에 비추어 볼 때 물의 수요와 수자원의 고갈이 증대되고 있으며 새로운 수자원 개발은 점점 어려워지고 또 고가이다. 따라서 더 이상의 발전을 위해서는 토지와 수자원의 효율적이고 경제적인 이용은 물론 현재 관계조직의 개선과 집중적인 관리가 강조 되어야할 것으로 생각된다.