• The monthly packaging world
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• s.101
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• pp.114-123
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• 2001

• The Korean Journal of Applied Statistics
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• v.22 no.2
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• pp.309-315
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• 2009

The degree of the impression about a special commodity in the internet shopping malls depends on the evaluation and the corresponding rating of customers who purchased and used this commodity. We can find the problems in online ratings system of Korean internet shopping malls and suggest the simple solutions.

• Journal of Korean Institute of Industrial Engineers
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• v.35 no.1
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• pp.58-72
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• 2009

The main activities of container terminals are to load container freights to vessels, discharge them from vessels, and store them in the storage yard. Container terminals make many operational plans to execute these functions effectively. If the plans do not consider enough the loads of related resources, they may have low actualities. This study discusses the optimal yard planning model which considers various resources, such as the storage yard, yard cranes, internal vehicles, and travel lanes, in container terminals. The model determines the groups and amounts of containers which are stored in each storage block by using the resource profile. The yard planning problem is represented to the multi-commodity minimal cost flow problem and is formulated to the linear programming model. In order to explain the application of the mathematical model, the numerical examples are presented. Additionally, the relationship between the average load ratio and the relocation ratio is discussed.

• IE interfaces
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• v.21 no.1
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• pp.1-7
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• 2008

In this paper we study the Minimum Edge Addition Problem(MEAP) to decrease the diameter of a graph. MEAP can be used for improving the serviceability of telecommunication networks with a minimum investment. MEAP is an NP-hard optimization problem. We present two mathematical programming models : One is a multi-commodity flow formulation and the other is a path partition formulation. We propose a branch-and-price algorithm to solve the path partition formulation to the optimality. We develop a polynomial time column generation sub-routine conserving the mathematical structure of a sub problem for the path partition formulation. Computational experiments show that the path partition formulation is better than the multi-commodity flow formulation. The branch-and-price algorithm can find the optimal solutions for the immediate size graphs within reasonable time.

• The Korean Journal of Pesticide Science
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• v.18 no.1
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• pp.48-51
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• 2014

Since the year of 2006 when the extended revision of the Codex Classification of Foods and Animal Feeds was undertaken, considerable progresses have been made in revising the Classification. This paper aimed to summarize the present status on revision of the Codex Classification of Foods and Animal Feeds, focusing remarkable achievements such as 1) the draft revision of the Codex Classification for the fruit commodity group and 2) the draft Principles and Guidance on the Selection of Representative Commodities for the Extrapolation of Maximum Residue Limits for Pesticides to Commodity Groups, adopted by the Codex Alimentarius Commission in 2012. Additionally, it included information on lists of crop group or subgroup which are holding at Step 7 and were adopted at Step 5, and further have not been yet discussed by the Codex Committee on Pesticide Residues. These information will be very helpful for a pesticide regulatory regime.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2000.04a
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• pp.206-211
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• 2000

A product consists of some parts. The integrity of a product might not be explained from individual parts. The fishery processed goods can be used as a model. The characteristics which derives from a product as a whole is more important than right or wrong of individual parts. All commodities to appeal for consumers have much in common. I explain the process of producing a new tasteful commodity by observing the fishery processing goods business. This is a part of data acquired from a research at a fishery port in Japan. (1) A project manager should be a person in charge of marketing, which makes success easier. (2) A product and process design should be done concurrently. (3) As for a synthetic architectural commodity, a strong leader is a must. (4) To understand material and sensibility information, we can use the above-mentioned.

• Proceedings of the Polymer Society of Korea Conference
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• 2006.10a
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• pp.152-152
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• 2006

Polyolefins show a very healthy growth rate among commodity polymer resins due to their low feedstock prices, recyclable and environmentally friendly characteristics and easily controllable performances. Capacity investment in polyolefin field is now moving from technology region to consumer region and feedstock region. Therefore, key success factors for polyolefin business in the other region such as Korea are cost reduction, development of highly value-added products and new applications and substitution of PVC, PS, PET and other EPs. To add additional value to commodity polyolefin products, high level of platform technology such as catalyst, process and structure-properties relationship is needed. Progress on polyolefin products has been very closely related to catalyst and process technology. According to this trend, SK Corporation has devoted a lot of research effort into development of new value-added polyolefin products based on the proprietary technology platform.

• Journal of the Korean Society of Clothing and Textiles
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• v.26 no.12
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• pp.1716-1726
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• 2002

본 연구는 국제의류사슬 내 수출위치를 단순조립 생산 (Mere-Assembly Production), 주문자 상표부착 생간방식 (Origin Equipment Manufacturing), 고유상표 생산방식 (Original Brand Name Manufacturing)으로 규명하고, 각 국가의 의류사슬 내 수출 위치가 수입 단가에 어떠한 영향을 미치는지 조사하였다. 1999년 미국Department of commerce의 무역 자료를 사용하여 국제 의류사슬 내 각각의 위치를 점하고 있는 방글라데시, 홍콩, 한국, 이태리를 비교한 결과, 의류사슬 내 위치에 따라 이들 국가로부터의 섬유 및 의류제품의 미국 내 수출단가가 통계 적으로 유의 한 차이를 보이는 것으로 나타났다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2018.01a
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• pp.75-76
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• 2018

본 논문에서는 상품증권 거래 시스템에 블록체인을 적용하여, 여러 서비스에 거래 시스템을 적용할 수 있게 설계하였다. 블록체인 오픈소스 프레임워크인 Hyperledger를 사용하여 시스템의 안정성을 높였다. 단말기의 배터리 소모량과 네트워크 트래픽을 감소시키기 위한 방식으로 거래소를 적용하는 방법에 관해 기술하였다. 또한, 서드 파티 개발자가 플랫폼을 쉽게 구축할 수 있도록 API 구조를 설계하였다.

• ETRI Journal
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• v.37 no.4
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• pp.787-792
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• 2015

To accomplish a high-speed test on low-speed automatic test equipment (ATE), a new instruction-based fully programmable memory built-in self-test (BIST) is proposed. The proposed memory BIST generates a highspeed internal clock signal by multiplying an external low-speed clock signal from an ATE by a clock multiplier embedded in a DRAM. For maximum programmability and small area overhead, the proposed memory BIST stores the unique sets of instructions and corresponding test sequences that are implicit within the test algorithms that it receives from an external ATE. The proposed memory BIST is managed by an external ATE on-the-fly to perform complicated and hard-to-implement functions, such as loop operations and refresh-interrupts. Therefore, the proposed memory BIST has a simple hardware structure compared to conventional memory BIST schemes. The proposed memory BIST is a practical test solution for reducing the overall test cost for the mass production of commodity DDRx SDRAMs.