• 한국의류산업학회지
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• 제8권3호
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• pp.303-309
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• 2006

This study intended to compare and analyze marking efficiencies of basic slacks, based on different cloth and production conditions, the width of cloth, the number of marking pieces and the direction for marking deployment and proposed an efficient marking method. The results were as follows. On the whole, the marking efficiencies increased with increasing cloth widths. In the case of small number of marking pieces, the efficiency increased with increasing cloth widths, while, for large number of marking pieces, there was no differences in the efficiency with the cloth widths. From the result of the comparison of the marking efficiencies with the number of marking pieces, it was shown that, in the case of small cloth width, the efficiency increased considerably with increasing number of marking pieces, while, in the case of large cloth width over two markers, there was no distinct effect of the number of markers on the marking efficiency. Thought there were some differences of the marking efficiencies with the marker directions, bi-direction marker was the most efficient marker, followed by one-direction for each size marker and one-direction marker.

• 한국자원식물학회지
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• 제15권2호
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• pp.172-176
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• 2002

토란 재배시 종우가 부족할 경우 절편자우를 종우로 활용하는 방법을 연구하고자 본 시험을 실시한 결과는 다음과 같다. 1. 토란의 출현은 절편자우의 크기 별로 차이가 인정되지 않았고, 출현율은 90% 이상 출현되었다. 2. 생육은 절편자우가 클수록 엽병장이 크고 엽병속수가 많아 양호하였다. 3. 토란 절편자우의 크기에 따른 괴경과 부산물인 엽병의 수량은 크기간에 유의성이 인정되어 절편자우가 클수록 수량이 증수되는 경향으로 절편자우 20g을 종우로 사용할 경우 10g당 1,981kg을 생산할 수가 있었다. 이와 같은 결과로 보아 절편자우가 20g 이상인 것을 종우로 사용할 경우 토란의 재배가 가능할 것으로 본다.

• 한국IT서비스학회지
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• 제8권1호
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• pp.143-163
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• 2009

The study investigates the challenge of knowledge maintenance in the KMSs. Knowledge pieces are the embodiment of structures in an organization and need to be modified tuned to environmental change over time. Since the change of knowledge in the KMS is not made automatically, it requires user's active participation which is called maintenance action. This study shows that users are not voluntary in taking maintenance action with empirical data based upon knowledge pieces that are already established in the KMS. This article shows that the intention of maintaining KMS is negatively influenced by KM-related culture, organizational culture and the authority of knowledge piece rather than the organizational demography. An organizational culture has an influence directly upon the intention of maintaining knowledge but influence upon KM-related culture or the authority of knowledge piece, the influence indirectly related to the intention of maintaining knowledge. It can be argued that the organizational demography have only meager influence upon the intention of maintaining knowledge only by KM-related culture. This research has the implication that what factors are to be considered in maintaining knowledge pieces over time for the organization managers.

• 한국해양공학회지
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• 제37권6호
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• pp.266-272
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• 2023

The structure of a ship is completed by processing various steel plates and welding these plates. This butt welding of plates is defined as a seam in shipyards, and this study seeks to find a way to decrease costs by reducing the utilization of steel through effective seam arrangement. Seams were defined and classified according to purpose, and examples of "pieces" and "main plates" where seam creation had an economical saving effect were selected. For "pieces," the change in the weight of steel utilized depending on the presence or absence of a seam was calculated, and the resulting change in cost increase was presented. In the case of the "main plate," the quantity of seams does not change, but an example of cost variation due to the appropriate placement of seams is presented. Hence, a large difference was found in the costs of "pieces" depending on seam location. Thus, it was advantageous to create additional seams. For the "main plate," it was found that narrow-width and wide-width materials incur more costs. This study demonstrates that creating seams is economically advantageous but may not be preferred owing to the increased workload from a production perspective.

• 대한수의학회지
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• 제41권3호
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• pp.275-279
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• 2001

The classification of bony pieces which were excavated from Jongdali archaeological site in Jeju was studied. The total number of bone remains were 81 pieces, in which 31 pieces were classified into animal bones. The animal species consisted of Cervus spp., Sus scrofa, Bos taurus and Equus caballus. This finding suggests that the major fauna in this peroid(B.C. 100 - A.D. 100) is wild boar, deer, horse and cattle.

• Tribology and Lubricants
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• 제14권3호
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• pp.32-38
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• 1998

This paper presents the magnetic flux distributions of a ferrofluid seal at the sealing gap between the pole pieces and the rotating shaft. The optimized shape of pole pieces has been determined by using the computer simulations. The computed results indicate that the sloped pole piece of 27$^{\circ}$ shows good flux distributions compared with that of the conventional flat pole pieces and may reduce frictional heats due to a reduced surface contact areas of magnetic fluids.

• 대한약학회:학술대회논문집
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• 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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• pp.388.3-389
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• 2002

Kyonin(Armeniacae Semen)is the herb medicine that contains amygdalin as a major ingredient. Amygdalin in water is decomposed into benzaldehyde. HCN. and glucose by emulsin. a hydrolysis enzyme in kyonin. A useful and practical method for the optimum extraction condition of amygdalin without enzymatic hydrolysis is required. The extraction yield of amygdalin of natural formula kyonin was 0.5% from crude powers. 0.7% from small pieces. 1.2% from half pieces and 2.7% from whole pieces. (omitted)

• 한국의류학회지
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• 제29권7호
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• pp.1008-1017
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• 2005

When we develop 2D pattern from replica of human body with small pieces, it is inevitable to have some replica pieces overlapped or departed. In this study, the optimized method of 2D pattern development from the 3D replica pieces was investigated using dress-form. Among six arrangement methods, anchoring two vertexes of a replica to neighboring vertexes of a next replica induces the optimized 2D pattern by evenly distributing stress across the 3D replica pieces. Anchoring neighboring vertexes resulted in automatic widening k overlapping (W & O) the interspaces among replicas of dress-form, thereby stress was distributed more evenly than any other method. W&O arrangement method was verified to be the best by examining the 3D space distribution images between body surface and twelve experimental garments.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2008년도 추계학술대회논문집
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• pp.184-185
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• 2008

Modal analysis is an important and essential process in design of a high speed machining center. Generally, modal analysis of a built-in spindle system has not taken the work piece's shape and dimension into consideration. Since small and long work pieces influence greatly the natural frequency of the entire system, the high speed spindle system which continuously makes small machine parts by long work pieces for improvement of machining time has to consider the machining work pieces. Therefore frequency characteristics of the spindle system with long work pieces are studied in this paper.

• 로봇학회논문지
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• 제4권4호
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• pp.320-326
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• 2009

This paper proposed a new magnetic field detection algorithm to detect metal pieces in food producing processes. This algorithm can detect mixed metal pieces by sensing magnetic field. Some metal pieces are passed through an over-current circuit to magnetize them. The magnetic field sensor can detect the change in the magnetic field on theconveyor belt caused by the flow of the metal pieces in the food product. However, such a method detects the output of signals that change their amplitude and phase according to the movement of the conveyor belt with the food product, in which the equilibrium of the positive signal that is created in the receiver coil loses its balance due to the magnetized material. This includes not only the signal elements resulting from the effect of the alternating magnetic fields of the mixed metals, but also the signal elements resulting from the effect of the alternating magnetic fields of the examined object itself.