• 한국환경과학회:학술대회논문집
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• 한국환경과학회 1999년도 정기총회 및 봄 학술발표회 프로그램 The Korean Environmental Sciences Society
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• pp.25-41
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• 1999

• 대한공간정보학회지
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• 제17권2호
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• pp.123-131
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• 2009

21세기 정보통신기술은 다양한 공간정보를 온라인으로 전송할 수 있는 수준에 이르고 있으며, 컴퓨터를 이용한 출력기술도 품질면에서 인쇄와 대등한 위치에 이르렀다. 이와 더불어 지도 사용자들 역시 다양한 공간정보를 온라인 상에서 직간접적으로 취득하길 원하고 있다. 그럼에도 불구하고 우리나라의 지형도 공급시스템은 오프라인 형태를 유지하고 있어 온라인 형태의 선진국에 비해 재고관리, 신속성, 경제성면에서 비효율성을 나타내고있다. 본 연구에서는 효율적인 지도공급시스템을 구축하기위해 현 공급체계의 문제점을 분석하고, 사용자요구지도제작, 온라인 결제 및 판매, 재고관리, 메타데이터구축, 보안모듈 등을 개발하였다. 개발된 시스템을 평가한 결과 기존의 방식에 비해 지도공급 및 관리의 효율성이 향상되었으며 사용자요구지도의 제작이 가능해졌다.

• 한국대기환경학회지
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• 제34권1호
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• pp.87-100
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• 2018

Fast economic growth and urbanization of China have been causing air pollution not only over its domestic but transboundary atmosphere. Recent high fine particle pollution episodes in China made the government move toward more stringent air pollution control policies - which are mostly fuel switching and emissions control. In this research, we tried to understand characteristics of Chinese emissions and their change by analyzing its emissions inventory by year, sector, and region. From the inter-comparison of existing bottom-up emission inventories, we found relatively good agreements (<20% difference) for $SO_2$ and $NO_x$, but 30% or more discrepancies for some pollutants. Inter-comparison with top-down $NO_x$ emissions estimates also showed 20~50% differences by year. The regional distribution and inter-annual changes of emissions revealed different stages of energy/fuel mix and policy penetration. Early increase of pollutants emissions in the eastern part of China might give strong influences to the Korean peninsular in early 2000s but, more stringent control in that region would help improving air pollution in Korea in near future.

• 디지털콘텐츠학회 논문지
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• 제9권2호
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• pp.295-303
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• 2008

인터넷을 통한 전자상거래가 보편화됨에 따라 다품종, 소량 생산품을 취급하는 중소 인터넷 쇼핑몰의 수가 증대되었다. 중소 인터넷 쇼핑몰은 그 특성상 다수의 재고물량을 확보할 수 있는 공간이 부족하다. 따라서 전통적인 재고 관리 방법으로 고객의 요구에 즉각적으로 반응하기 어렵다. 본 논문에서는 판매자의 판매량에 따라 공급업체가 재고량을 조절할 수 있는 VMI를 인터넷 쇼핑몰에 도입한 SOHO-VMI를 제안한다. 제안된 SOHO-VMI는 다수의 공급업자 및 판매자와 상호작용 할 수 있는 M $\times$ N 구조를 지원한다. 그리고 기존 시스템에서 사용하는 EDI 문서와 상호작용을 위해 XML/EDI를 사용하도록 제안하였다. 또한, 판매자의 물품 판매 정보 및 계절적 요인을 고려하여, 공급업체에서 물품생산량 및 유통량을 조절 할 수 있는 물류 통계 예측 알고리즘을 제안하였다.

• 대한물리치료과학회지
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• 제30권4호
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• pp.44-53
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• 2023

Background: This report determines the effects of a neurofeedback program on patients with breast cancer through a study of psychogenic factors(distress, depression, anxiety). Design: Randomized controlled trial. Methods: The study selected 28 patients with breast cancer and divided them into two groups: 14 subjects in the neurofeedback program group and 14 subjects in the exercise intervention program group. Both groups conducted one-and-hour training per session five times a week for a total of five weeks. The experimental group performed neurofeedback, and the control group performed a exercise intervention. The distress was measured using the distress management Test. Beck's Depression Inventory was used to measure depression. Beck's Anxiety Inventory was used to measure Anxiety Results: Both the experimental and control groups showed significant differences in distress, depression, and anxiety after the intervention (p<0.05) in the within-group comparisons. It was found that the experimental group showed more significant differences in distress, depression, and anxiety than the control group (p<0.05) when the two groups were compared. Conclusion: The results obtained in this study show that the neurofeedback program had a positive effect on distress, depression, and anxiety of life in patients with breast cancer. The study thereby proposes that the neurofeedback program should be applied as an intervention method for clinical use on patients with breast cancer.

• 정신신체의학
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• 제13권2호
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• pp.95-101
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• 2005

연구목적 : 부모의 정신병리가 아동의 적응기능과 정신병리에 영향을 미친다고 알려져 있다. 또한 우울한 어머니는 자녀들의 행동에 대해 더 부정적으로 판단하며, 더욱 비판적이며 강압적인 양육방식을 취하게 되어 모자관계에 부정적인 영향을 미치게 된다. 저자들은 주의력결핍 과잉행동장애 진단을 받은 환아의 보호자를 대상으로 우울, 불안, 감정표현불능, 스트레스반응의 정도를 알아보고자 하였다. 방법: DSM-IV 진단기준에 의해 주의력결핍 과잉행동장애로 진단된 환아 38명의 보호자를 대상으로 하였고, 나이와 성별을 맞춘 16명의 자원자를 건강대조군으로 하였다. 환아 보호자군과 건강대조군에 대하여 Beck의 Beck Deperssion Inventory(BDI), Spielberger의 State-Trait Anxiety Inventory(STAI), Taylor의 Tronto Alexithymia Scale (TAS), 고경봉의 스트레스반응척도(SRI)를 사용하여 두 군 간의 차이를 비교하였다. 결과: 1) 환아 보호자군과 대조군의 BDI 평균점수는 각각, $16.4{\pm}7.1,\;10.9{\pm}5.5$점으로 통계적으로 유의한 차이를 보이고 있었으며 (p=0.011), BDI 점수 21점을 절단점으로 하여 21점 이상을 우울증이 있다고 했을 때, 환아 보호자군에서는 7명(18.4%)이 해당되었으나, 대조군에서는 해당되는 경우가 없어 두 군간의 유의한 차이가 관찰되었다(p=0.021). 또한 우울증이 있는 보호자의 자녀에서 주의력결핍 과잉행동장애가 발생할 가능성은 그렇지 않은 경우에 비해 1.516배 높았으며 이러한 관련성은 통계적으로 유의하였다(95% 신뢰구간=$1.235{\sim}1.862$). 2) 환아 보호자군과 대조군의 스트레스반응척도의 평균점수는 각각, $44.2{\pm}20.2$점, $26.5{\pm}16.8$점이었고, 이러한 차이는 통계적으로 유의하였다(p=0.006). 3) 상태불안척도 및 특성불안척도, 감정표현불능척도에서 두 군간의 유의한 차이는 관찰되지 않았다. 결론: 이상에서 주의력결핍 과잉행동장애 환아의 보호자군은 그렇지 않은 군보다 많은 우울증상과 높은 정도의 스트레스반응을 보이는 것이 확인되었다. 주의력결핍 과잉행동장애에 대한 치료적 접근에 있어서 환아보호자의 정신병리에도 관심을 갖고 이에 대한 통합적인 접근이 필요할 것으로 사료된다.

• 대한산업공학회지
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• 제38권2호
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• pp.116-124
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• 2012

This paper concerns a joint replenishment problem for a single buyer who sells multiple types of items to end-customers. The buyer periodically replenishes the inventory of each item to a preset order-up-to-level to satisfy the end customers' demands, which may be non-stationary. A joint replenishment policy characterized by variable order-up-to-levels is proposed for the buyer who wishes to minimize the expected cost of operating the retail system. The proposed policy starts each period by calculating the expected cost of ordering and not ordering action based on the information of the current inventory position and forecasted demand for the upcoming period. It then takes advantage of an integer programming model to get a cost effective joint replenishment plan. Computer experiment was performed to test efficiency of the proposed policy. When compared with the most efficient policy currently available, our policy showed a considerable cost savings especially for the problems having non-stationary demands.

• 산업공학
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• 제13권3호
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• pp.424-430
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• 2000

Supply chain management (SCM) is an area that has recently received a great deal of attention in the business community. While SCM is relatively new, the idea of coordinated planning is not. During the last decades, many researchers have investigated multi-stage inventory problems. However, only a few papers address the problem of cost-optimal coordination of multi-stage inventory control with respect to service measures. Even published approaches have a shortcoming in dealing with a delivery lead time consisted of a shipping time and a waiting time. Assumed that there is no waiting time, or that the delivery lead time is implicitly compounded of a shipping time and a waiting time, the problem is often simplified into a multi-stage buffer allocation and a single-stage stochastic buffer sizing problem at all installations. This paper presents a simulation-based heuristic algorithm and a comparison with others for the problem that cannot be decomposed into a multi-stage buffer allocation and a single-stage stochastic buffer sizing problem because the waiting time ties together all stages. The comparison shows that the simulation-based heuristic algorithm performs better than other approaches in saving average inventory cost for both Poisson and Normal demands.

• Journal of Nutrition and Health
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• 제20권6호
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• pp.442-455
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• 1987

The purpose of the study were to assist foodservice managers in complex decision making by utilizing computerized cost accounting system and to relieve managers from repetitive and routine tasks so that more adequate patient care and consultation can be provided. The scope of the computer-assisted cost accounting system consists of budget, menu planning, purchasing, inventory, cost control and financial reporting. The content of the computerized system are summarized as follows ; 1) For budgeting monthly income was estimated by calculating unit cost of each meal and forecasting serving numbers. The actual serving numbers for patients and employees were totaled everyday, and utilized as the basic data base for estimating income and planning menu. The monthly lists of meal sensus were generated. 2) for menu planning concersion factors were computed based on the standarized recipe for 50 servings. Daily menus for patients and employees which include total amounts of each ingredient and cost analyzed information were generated. 3) Daily and monthly purchasing report for each food item classified by patient and employee meals were generated. 4) Inventory transactions such as recipts and issues were totalized daily for each stocked item, and monthly inventory reports were generated. 5) Cost analysis reports for each menu item were generated into two ways based on the budget coat as well as the purchasing cost. 6) Editing new recipes and updating food costs change to the data base were carried out. 7) Financial reports were generated monthly, first-half and second-half of the year, and yearly basis.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 2000년도 춘계공동학술대회 논문집
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• pp.139-142
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• 2000

Excessive inventories result from poor scheduling, planning, and controls, and the converse is also same. With adequate inventories, supplies can transport products to customers in time without excessive delivering cost. So efficient inventory control is vital for successful logistics management operation. In terms of mass discount retailers such as Wal-Mart, Carrefour, E-Mart, and so on, they require the high-quality services such as a small-amount and a high-frequency delivery because of having small warehouse and wanting possess much more various goods. In the opposite, manufactures ask mass discount retailer to delivery more lots of goods because of reducing the number of deliveries. It goes without saying that both wish to prevent stockout(lack of inventories). Usually, mass discount retailers have the power more than manufactures. This paper proposed how to manage inventory and how many to order in view of the TPLC and supplier. We considered the economic order quantity models for multiple items so as to prevent urgent deliveries as possible as. And the tradeoff stockout costs and delivering costs.