• Korean Journal of Construction Engineering and Management
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• v.12 no.3
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• pp.73-82
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• 2011

The term 'green' has become an important way of survival for the construction industry in 21th century in accordance with the emergence of the environmental crisis due to the climatic change. Especially the policy of carbon taxation, planed to be introduced from 2012, is expected to be a considerable burden to the construction industry which has abundant carbon emission during the resource transportation due to the complexity of resources and local distribution of the construction sites. In this regard, this study shows an optimizing strategy for delivery frequency, which downsizes the net distribution costs based on the assumption that, despite of its other advantagements, the frequent small lot mode of JIT delivery would take negative effects due to the increase of costs of transportation and carbon emission once the carbon taxation policy carried out. To simulate the efficiency of the management strategies, the System Dynamics modeling has been used. The results show that the frequent small lot transportation strategy is now always efficient method to these changes, and that the frequency of transportation should be re-determinated according to the extent of the imposition of carbon tax. This study provides the conceptual frame for an efficient management of transportation system of the construction industry, showing necessity of change of the resource transportation systems through analysing JIT deliver system in accordance with the global changes in environmental economy.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2004.05a
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• pp.429-432
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• 2004

다수의 품목을 개별적으로 주문하기 보다는 묶어서 한꺼번에 주문하는 경우 수송비용과 주문비용을 줄일 수 있으며, 같은 공급자에게서 구매하는 경우에는 가격할인까지 기대할 수 있다. 이와 같이 하나의 공급자들 통해 다수의 품목을 구매하는 경우에 대한 최적의 구매전략을 다룬 문제가 다품목 일괄 주문모형으로 Joint Replenishment Problem(JRP)으로 잘 알려져 있으며 지난 수십 여년간 많은 연구가 이루어진 생산재고관리 영역의 문제들과는 달리 일반적인 JRP를 해결하기 위한 발견적 기법들에 대한 연구는 수없이 많은 반면 JRP를 현실적으로 확장한 연구는 국내외적으로 전무한 형편이다. 본 연구에서는 일반적인 JRP를 제약식을 고려한 문제로 확장하여 유전자 알고리즘을 이용한 해법을 개발하고 이 문제의 확장 가능성에 대해 소개하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2020.05a
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• pp.327-329
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• 2020

실험실정보관리시스템 (LIMS)은 실험실 데이터를 저장, 가공, 검색 그리고 분석하기 위한 중앙화된 데이터베이스로서 정유, 석유화학, 정밀화학, 제조업, 금속, 제철, 식품, 의약, 연구소, 보건환경, 검사소 등 다양한 분야에 말라하여 적용이 가능한 시스템이다. LIMS를 재고 관리, 임상 연구, 프로젝트 관리 및 환자 데이터 관리를 위한 강력한 IT도구하고 하면서 특히 의료 분야에서 환자 치료가 향상되고 서비스 효율성이 높아짐 것이라고 하고 운영 비용의 절감이 가능하다. 확장성 및 비용절감과 핵심 기능을 위주로 제공하는 클라우드 및 웹 기반 솔루션의 발전으로 제4차 산업혁명의 핵심기술의 산증인의 분야로 기대가 된다.

• The Journal of the Korea Contents Association
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• v.17 no.6
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• pp.98-105
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• 2017

The medical institution considers liability management problems as a direct factor in managerial risks, such as bankruptcy. Cash Flow provides useful information to necessary funds and predicting bankruptcy. The study for 24 general hospitals and 23 hospitals, a regression analysis was performed to determine the impact of cash flows on the debt repayment capability, a multivariate discrimination analysis was conducted to find out how to manage cash flow for the risk posed by debt. The analysis results, For general hospitals, the level of debt repayment capability was done to net income, increase of payables from operating activities and decrease of patient receivables and inventories from operating activities. If there is no dept repayment capability, it is necessary to increase the net income, increase the expenses not involving cash outflows, decrease of patient receivables and increase of payables from operating activities. For hospitals, the level of debt repayment capability was done to net income, increase of expenses not involving cash outflows and payables from operating activities, decrease of income not involving cash inflows, decrease of patient receivables and inventories from operating activities. If there is no dept repayment capability, it is necessary to increase of payables from operating activities.

• Journal of Digital Convergence
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• v.12 no.6
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• pp.125-134
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• 2014

Supply Chain Management(SCM) is getting important, because size of the company is getting bigger and the kinds of product are various. In the case of manufacturing corporation, for the optimization of SCM, we have to make production and distribution plan by considering the various fluctuation in the aspect of integration. In this paper, first, It proposed the reasonable operational way of the SCM about when the customer's demanding is various and demanding expectation fluctuates in capacity standardization of producer stage. Second, the paper proposed the management way for demanding by considering confirmed demanding information, related inventory expense and demanding shortage expense when we make production and distribution plan. The paper applied the genetic algorithm proved for current usefulness. it proposed the optimal operational way for SCM by dividing into 2 ways for dealing with the duration of confirmed demanding information and various fluctuation.

• Management & Information Systems Review
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• v.33 no.4
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• pp.39-48
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• 2014

In order that a company may reduce expense, according to companies' income statement, the largest amount of money is set to total sales amount, and the next is the sales cost. The method of reducing the sales cost is the common and it is important to take down a unit price at the time of purchase, or to reduce inventory cost. In this research, the cost reduction model for logistics cost reduction is built using the real data of P company, and in order to verify the validity of a model, logistics cost is calculated through a simulation. A real logistics cost is compared with the logistics cost through logistics route rearrange of the proposal model. It will become an opportunity which analyzes the logistics expense of P company through this research, and can be solved in search of the problem of logistics system.

• KIISE Transactions on Computing Practices
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• v.21 no.11
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• pp.739-744
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• 2015

In this paper, we examine the project-based educational practice that is co-developing a solution to the local food inventory management system. This project is aimed at the practical business of IT distribution in small and medium industries, and is linked with the project course on undergraduate students of IT division. For the practical project of the IT distribution in small and medium industries, an employee in charge of the project participates as a mentor such that he presents the project subject and the students develop the system for the subject. This system emerges from existing theory and the necessity for a term project, and this course leads students to learn practical knowledge through discussion with the employee in charge. Through this course, the latest technology is shared mutually, and students have the opportunity to understand a domain of the IT distribution business. As students experience how to understand and solve cost, quality and delivery time for the project by themselves, they build confidence. Also, the company can save on costs for the development of prototypes, while creating an opportunity for students to experience working with seasoned staff.

• The Journal of the Korea Contents Association
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• v.19 no.2
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• pp.170-185
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• 2019

This study is intended to look into the structural relationship between SCM activity, process innovation and quality performance in small and medium sized enterprisers(SMEs). To achieve this, a survey was empirically carried out to 354 SCM operating officers and managers who perform the SCM activities in small and medium sized manufacturing firms. The results are summarized as follows. Overall, the SCM activity and process innovation had a significant effect on the quality performance, having a structural relationship with the quality performance in SEMs. This implies that the strategic alliance of the SCM activities and competence concentration based on technology development in SEMs can organize the unity through organizational members' information sharing. In other words, when the information integration supports the compatibility and reliability of shared information system by raising technological competence through this, the process innovation can lead to non-financial cost reduction, product quality, delivery compliance and inventory cost reduction as quality performance of the structured process, management and distribution.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.35 no.1
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• pp.66-78
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• 2012

This paper proposes a computation model of the quantity supplied to optimize inventory costs for the fast fashion. The model is based on a forecasting, a store and production capacity, an assortment planning and quick response model for fast fashion retailers, respectively. It is critical to develop a standardized business process and mathematical model to respond market trends and customer requirements in the fast fashion industry. Thus, we define a product supply model that consists of forecasting, assortment plan, store capacity plan based on the visual merchandising, and production capacity plan considering quick response of the fast fashion retailers. For the forecasting, the decomposition method and multiple regression model are applied. In order to optimize inventory costs. A heuristic algorithm for the quantity supplied is designed based on the assortment plan, store capacity plan and production capacity plan. It is shown that the heuristic algorithm produces a feasible solution which outperforms the average inventory cost of a global fast fashion company.

• Convergence Security Journal
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• v.15 no.3_2
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• pp.71-76
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• 2015

Global companies are building global production network for the demand of the global market. However, the establishment and operation of overseas plants make the unexpected case like theft, low will to produce and salary issue of local workers. Thus in this paper, we propose the raw materials loss prevention model based on IP Camera and RFID Box for raw materials management of overseas plants. This model can prevent the theft or loss of raw materials write inventory up in real-time. This model can be allows us to realize the cost-effective production management because it enables remote inventory management. And this model can prevent brand image danage and profit loss due to reject product.