• Title/Summary/Keyword: inventory management system

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A Study on the Problem about Oriental Treatment Fee Based on Valuation of Resources (투입자원 평가에 근거한 한방 침구 부항 시술 수가의 문제점에 관한 연구)

  • Kim, Yong-Ho;Lee, Won-Hui;Chang, Hye-Jung;Lim, Sa-Bi-Na
    • The Journal of Korean Medicine
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    • v.29 no.1
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    • pp.15-24
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    • 2008
  • Objectives : The purpose of this study is to reexamine current oriental medical treatment fees based on valuation of input resources which are the treating time, the treatment's difficulty, and the material cost. Methods : This study obtained the following results by reviewing the answers given by 172 oriental medical doctors from March 1 to April 15, 2006. To investigate material cost, we took inventory of treatment materials used by 2 oriental hospitals. Results : The current system does not reflect well enough the treating time and treatment's difficulty. Considering current oriental treatment fees, material costs are too much of doctors' fees. Especially, Wang-ssuk-dduem, which is another form of moxibustion treatment, was spent as much as 74.6% on materials cost. Conclusions : The findings suggest the current oriental treatment fees should be revised to reflect the actual input resources into oriental medical doctor activities and to avoid a distortion of physicians' behavior.

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A Roots Method in GI/PH/1 Queueing Model and Its Application

  • Choi, Kyung Hwan;Yoon, Bong Kyoo
    • Industrial Engineering and Management Systems
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    • v.12 no.3
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    • pp.281-287
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    • 2013
  • In this paper, we introduce a roots method that uses the roots inside the unit circle of the associated characteristics equation to evaluate the steady-state system-length distribution at three epochs (pre-arrival, arbitrary, and post-departure) and sojourn-time distribution in GI/PH/1 queueing model. It is very important for an air base to inspect airplane oil because low-quality oil leads to drop or breakdown of an airplane. Since airplane oil inspection is composed of several inspection steps, it sometimes causes train congestion and delay of inventory replenishments. We analyzed interarrival time and inspection (service) time of oil supply from the actual data which is given from one of the ROKAF's (Republic of Korea Air Force) bases. We found that interarrival time of oil follows a normal distribution with a small deviation, and the service time follows phase-type distribution, which was first introduced by Neuts to deal with the shortfalls of exponential distributions. Finally, we applied the GI/PH/1 queueing model to the oil train congestion problem and analyzed the distributions of the number of customers (oil trains) in the queue and their mean sojourn-time using the roots method suggested by Chaudhry for the model GI/C-MSP/1.

A Study on the Comparison of Biogenic VOC (BVOC) Emissions Estimates by BEIS and CORINAIR Methodologies (BEIS와 CORINAIR 산출방법에 의한 자연식생 VOC 배출량 산출 비교 연구)

  • Cho Kyu-Tak;Kim Jo-Chun;Hong Ji-Hyung
    • Journal of Korean Society for Atmospheric Environment
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    • v.22 no.2
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    • pp.167-177
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    • 2006
  • In this study, a fundamental work for developing a biogenic Volatile Organic Compounds(BVOC) emission model in Korea has been carried out. Two different approaches, Biogenic Emission Inventory System(BEIS2) and CORINAIR Methodology(CORINAIR) were compared for estimating BVOC emissions. It was found that BEIS and CORINAIR showed very similar results each other BVOC emissions estimated by two different methods were about the same on a national and regional(provincial) scale. In case of monthly emissions the difference between BEIS and CORINAIR were larger than those on a national and regional(provincial) scale, especially in summer season(June, July and August). Although BEIS and CORINAIR are quite different techniques to correct the environmental conditions, they revealed similar results. Therefore, it is proven that both the methods are able to be applied to the estimation of the BVOC emissions in Korea.

Review of Quick Response: Investigation on its Fundamental Role of Supply Chain Collaboration

  • RYU, Chungsuk
    • Journal of Distribution Science
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    • v.17 no.9
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    • pp.5-13
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    • 2019
  • Purpose - This study investigates the key features of Quick Response as the fundamental form of supply chain collaboration by reviewing the selected past studies. Based on the findings from the literature review, this study provides the guideline for future researchers and business practitioners who search for more advanced collaboration programs. Research design, data, and methodology - This study conducts the literature review on the past studies that had researched Quick Response. The selected studies are analyzed in terms of how to represent Quick Response in the models and which issue to address. Results - This study finds that the past studies lack a unified concept of Quick Response, and they fail to provide the consistent guideline on how to run this program in practices. The literature review also shows that only a small number of research issues has been addressed by most researchers. Conclusions - On the purpose of figuring out the real value of Quick Response, this study suggests that future studies apply its extensive application to the entire supply chain system. This study also shed light on the potential of Quick Response to be a more advanced supply chain collaboration program with additional collaborative functions other than information sharing.

A Study of Functional Assesment in Children With Cerebral Palsy (뇌성마비의 기능성평가도구에 대한 고찰 - GMFCS, GMFM 과 PEDI 중심으로 -)

  • Lyu, Sun-Ae;Kim, Bo-Kyong
    • Journal of Oriental Neuropsychiatry
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    • v.21 no.1
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    • pp.13-42
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    • 2010
  • Objectives: This study is to investigate the method for assesment of cerebral palsy(CP), especislly focusing on function assesment Methods: We searched the recent date of the publication and paper in Cerebral Palsy Results: Measuring the function of children with cerebral palsy is mobility, self-care and social ability. Early adequate evaluation of motor development and prognosis of degree of long-term motor disability is very important not only for parents, but also for correct management of goal oriented rehabilitation treatment and for planning of preventive measures. 1. Gross Motor Function Classification System(GMFCS) is valuable to prognostication about gross motor progress in children with CP, using longitudinal observation. 2. Gross Motor Function Measure(GMFM) is the instrument most commonly used to measure gross motor function in children with cerebral palsy(CP). 3. Pediatric Evaluation of Disability Inventory(PEDI) is one of the most commonly used assessments for children with a disability. Conclusions: The functional Assesment of children with CP are used GMFCS, GMFM and PEDI.

The Effect on a Delivery Time Window Dispatching Policy for 3PL Distribution Center (제3자 물류센터 납품시간창 디스패칭 정책에 관한 효과)

  • Lee, Woon-Seek;Kim, Byung Soo
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.37 no.1
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    • pp.60-67
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    • 2014
  • This paper considers an inbound ordering and outbound dispatching problem for multi-products and multi-vehicles in a third-party distribution center. The demands are dynamic over a discrete and finite time horizon, and replenishing orders are shipped in various transportation modes and the freight cost is proportional to the number of vehicles used. Any mixture of products is loaded onto any type of vehicles. The objective of the study is to simultaneously determine the inbound lot-sizes, the outbound dispatching sizes, and the types and numbers of vehicles used to minimize total costs, which consist of inventory holding cost and freight cost. Delivery time window is one of the general dispatching policies between a third-party distribution center and customers in practice. In the policy, each demand of product for a customer must be delivered within the time window without penalty cost. We derive mixed integer programming models for the dispatching policy with delivery time windows and on-time delivery dispatching policy, respectively and analyze the effect on a dispatching policy with delivery time windows by comparing with on-time delivery dispatching policy using various computational experiments.

A Study on the Improvement of Intaglio Characters Recognition of Rubber Tires (고무타이어의 음각 문자 인식 향상에 관한 연구)

  • Yun, Hyeong-Jin;Park, Koo-Rack;Kim, Dong-Hyun
    • Journal of the Korea Convergence Society
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    • v.9 no.10
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    • pp.7-12
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    • 2018
  • In today's rapidly growing contemporary society, there is a tendency for demand to automate production processes by utilizing the vision system. In general, image recognition is mainly concerned with embossed characters such as license plates, and research on recognition of intaglio characters is very limited. Especially, intaglio characters, which are marked on rubber related products such as tire surfaces, have difficulty in recognizing characters or numbers through image because the difference in brightness with surrounding is not so large. In this paper, we propose a system to improve the recognition rate of characters marked on intaglio rubber products such as tire surfaces. Also, it can be applied flexibly according to the lighting environment. Through the proposed system, production and inventory management and defect detection can be processed quickly by applying to the production process of tire and rubber products.

A Case Study on Capacitated Lot-sizing and Scheduling in a Paper Remanufacturing System (제지 재제조 시스템에서의 자원제약을 고려한 로트 크기 결정 및 일정 계획에 대한 사례연구)

  • Kim, Hyeok-Chol;Doh, Hyoung-Ho;Yu, Jae-Min;Kim, Jun-Gyu;Lee, Dong-Ho
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.35 no.3
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    • pp.77-86
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    • 2012
  • We consider the capacitated lot-sizing and scheduling problem for a paper remanufacturing system that produces several types of corrugated cardboards. The problem is to determine the lot sizes as well as the sequence of lots for the objective of minimizing the sum of setup and inventory holding costs while satisfying the demand and the machine capacity over a given planning horizon. In particular, the paper remanufacturing system has sequence-dependent setup costs that depend on the type of product just completed and on the product to be processed. Also, the setup state at one period can be carried over to the next period. An integer programming model is presented to describe the problem. Due to the complexity of the problem, we modify the existing two-stage heuristics in which an initial solution is obtained and then it is improved using a multi-pass interchange method. To show the performances of the heuristics, computational experiments were done using the real data, and a significant amount of improvement is reported.

CNN and SVM-Based Personalized Clothing Recommendation System: Focused on Military Personnel (CNN 및 SVM 기반의 개인 맞춤형 피복추천 시스템: 군(軍) 장병 중심으로)

  • Park, GunWoo
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.1
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    • pp.347-353
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    • 2023
  • Currently, soldiers enlisted in the military (Army) are receiving measurements (automatic, manual) of body parts and trying on sample clothing at boot training centers, and then receiving clothing in the desired size. Due to the low accuracy of the measured size during the measurement process, in the military, which uses a relatively more detailed sizing system than civilian casual clothes, the supplied clothes do not fit properly, so the frequency of changing the clothes is very frequent. In addition, there is a problem in that inventory is managed inefficiently by applying the measurement system based on the old generation body shape data collected more than a decade ago without reflecting the western-changed body type change of the MZ generation. That is, military uniforms of the necessary size are insufficient, and many unnecessary-sized military uniforms are in stock. Therefore, in order to reduce the frequency of clothing replacement and improve the efficiency of stock management, deep learning-based automatic measurement of body size, big data analysis, and machine learning-based "Personalized Combat Uniform Automatic Recommendation System for Enlisted Soldiers" is proposed.

Necessity of the Physical Distribution Cooperation to Enhance Competitive Capabilities of Healthcare SCM -Bigdata Business Model's Viewpoint- (의료 SCM 경쟁역량 강화를 위한 물류공동화 도입 필요성 -빅데이터 비즈니스 모델 관점-)

  • Park, Kwang-O;Jung, Dae-Hyun;Kwon, Sang-Min
    • Management & Information Systems Review
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    • v.39 no.3
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    • pp.17-35
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    • 2020
  • The purpose of this study is to develop business models for current situational scenarios reflecting customer needs emphasize the need for implementing a logistics cooperation system by analyzing big data to strengthen SCM competitiveness capacities. For healthcare SCM competitiveness needed for the logistics cooperation usage intent, they were divided into product quality, price leadership, hand-over speed, and process flexibility for examination. The wordcloud results that analyzed major considerations to realize work efficiency between medical institutes, words like unexpected situations, information sharing, delivery, real-time, delivery, convenience, etc. were mentioned frequently. It can be analyzed as expressing the need to construct a system that can immediately respond to emergency situations on the weekends. Furthermore, in addition to pursuing communication and convenience, the importance of real-time information sharing that can share to the efficiency of inventory management were evident. Accordingly, it is judged that it is necessary to aim for a business model that can enhance visibility of the logistics pipeline in real-time using big data analysis on site. By analyzing the effects of the adaptability of a supply chain network for healthcare SCM competitiveness, it was revealed that obtaining competitive capacities is possible through the implementation of logistics cooperation. Stronger partnerships such as logistics cooperation will lead to SCM competitive capacities. It will be necessary to strengthen SCM competitiveness by searching for a strategic approach among companies in a direction that can promote mutual partnerships among companies using the joint logistics system of medical institutes. In particular, it will be necessary to search for ways to utilize HCSM through big data analysis according to the construction of a logistics cooperation system.