• 한국산학기술학회논문지
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• 제18권6호
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• pp.596-608
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• 2017

2002년 제조물책임법(PL)을 시행하여 소비자가 제조물을 생산하고 판매하는 기업에 대하여 제품의 결함에 따른 손해배상을 청구할 수 있도록 하는 제도적 장치를 마련하였다. 그러나 최근 가습기 살균제 사건 등으로 인해 기업의 제조물책임 강화와 소비자 피해구제를 위한 집단소송제도, 징벌적배상제 도입을 위하여 제조물책임법 개정안 등 현재, 12여건의 관련 법안이 국회에 발의되어 있으나 정작 법안의 이해 당사자인 중소기업의 62.6%는 이에 대해 잘 알고 있지 못한 것으로 나타났다고 하고 있다. 많은 기업들이 PL 방어대책(Product Liability Defense : PLD)으로 문서작성 보관의 적정화, 관련업자와의 책임관계의 명확화, PL 보험의 가입 또는 배상자금의 확보 등으로 대비하고 있으나 이와 같은 대비책은 제품의 설계와 제품의 안전성을 고려한 부분에 대하여 한계점을 느끼게 한다. 이에 본 연구는 먼저 PL의 명확한 개념과 대응방안에 대해 살펴보고 PL 시스템과 개별 경영시스템 간의 관련성을 파악하고 제조물책임법에 대비한 PL 대응시스템을 기업의 개별경영시스템에 통합하고 보다 제품의 안전에 중점을 둔 개별경영시스템 모델을 제시하고자한다. 이 같은 연구목적에 따른 결과는 중소기업의 PL법 대응을 위한 합리적 대응방안으로 평가 받을 것으로 기대된다.

• 대한수학회지
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• 제52권4호
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• pp.869-889
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• 2015

Let ${\Gamma}^+$ be the positive cone in a totally ordered abelian group ${\Gamma}$, and ${\alpha}$ an action of ${\Gamma}^+$ by extendible endomorphisms of a $C^*$-algebra A. Suppose I is an extendible ${\alpha}$-invariant ideal of A. We prove that the partial-isometric crossed product $\mathcal{I}:=I{\times}^{piso}_{\alpha}{\Gamma}^+$ embeds naturally as an ideal of $A{\times}^{piso}_{\alpha}{\Gamma}^+$, such that the quotient is the partial-isometric crossed product of the quotient algebra. We claim that this ideal $\mathcal{I}$ together with the kernel of a natural homomorphism $\phi:A{\times}^{piso}_{\alpha}{\Gamma}^+{\rightarrow}A{\times}^{iso}_{\alpha}{\Gamma}^+$ gives a composition series of ideals of $A{\times}^{piso}_{\alpha}{\Gamma}^+$ studied by Lindiarni and Raeburn.

• 한국기계가공학회지
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• 제8권2호
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• pp.53-59
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• 2009

The analysis of injection molding process by CAE is widely used in development of plastic products. That comes from the fact that CAE analysis can reduce trial and error based on optimized design. On this study, by use of MOLDFLOW, the causes of product defects were found and solved by trade-off study. CAE analysis includes Flow-Cool-Warpage Analyses and finally a new mold-die design with better product quality was suggested. On injection molding of round-shaped plastic fan, new mold-die system with 4-tunnel gates located on the edge of a fan disc shows better quality rather than pin-point gate located on the center of a disc. That was effective in terms of flow mark removal and flatness improvement of the product.

• 한국정밀공학회지
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• 제17권4호
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• pp.97-105
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• 2000

One of the most important steps to determine the blank shape and dimensions in deep drawing process is to calculate the surface area of the product. In general, the surface area of axisymmetric products is calculated by mathematical or graphical methods. However, in the case of non-axisymmetric products, it is difficult to calculate the exact surface area due to errors as separated components. Fortunately, it is possible for elliptical products to recognize the geometry of the product in the long side and short side by drafting in another two layers on AutoCAD software. So, in this study, a surface area calculating system is constructed for a design of blank shape of deep drawing products. This system consists of input geometry recognition module and three dimensional modeling module, respectively. The suitability of this system is verified by applying to a real deep drawing product. The system constructed in this study would be very useful to reduce lead time and cost for determining the blank shape and dimensions.

• 한국항만학회지
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• 제14권1호
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• pp.77-86
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• 2000

The planning process of complex projects in oceanic architectural engineering is characterized by the cooperation of many involved specialists and by a high degree of information exchange. In order to improve the quality of the structural design of oceanic buildings, information of different involved partners in the planning process has to be integrated. This paper aims to introduce a concept of the integrated structural design for the floating-type oceanic building using STEP(Standard for the Exchange of Product Model Data). STEP(ISO 10303) is an international standard for the computer-interpretable representation and exchange of product data and it provides a consistent data exchange format and application interfaces between different application systems. In this paper, the structural design process and information of oceanic buildings is analyzed and product models are preposed fir the exchange of the structural design information between superstructure and floating structure. The entities for calculating wind loads, metacenter and restoring forces are represented by Express. As a case study a floating hotel is applicated to describe the STEP physical file.

• 대한산업공학회지
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• 제24권2호
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• pp.311-322
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• 1998

Modular BOMs are typically used in TWO-Level Master Production Schedule. To solve the problems of Modular BOM generation and efficient DB construction, we proposed Value Clustering Method. Based upon Where-Used matrix of products and components, VCM is the method to find out module by generating product family group value, product value, and component value. We also proposed method to find out information about Modules, algorithms to find out Modules that show Alternative Usage Pattern, and method to find out Modules used in a given product. We also compared the DB creation method by Value Clustering Method and by conventional method. We compared the size of DB in both methods. We mathematically proved that the proposed method is doing better as the size and complexity of product family gets larger and more complicated.

• Journal of Photoscience
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• 제1권1호
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• pp.39-45
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• 1994

Haloarene in which the phenyl group and halophenyl group are connected by alkyl groups were synthesized to study the photochemical behavior. The photochemical reactions of 1-halo-2-(phenylalkyl)enzenes (1 and 2) were studied in several aerated or unaerated solvents. In the case of 2-benzyl-1-halobenzene photoreduced product (biphenyl) is major in acetonitrile or benzene. In cyclohexane or acetonitrile with triethylamine, photoreduced product is obtained exclusively, while in acetonitrile with toluene, xylene, or sodium hydroxide photocyclized product (fluorene) is mainly obtained. In the case of 1-halo-2-phenethylbenzenes (5 and 6), photocyclized product (9,10-dihydrophenanthrene and phenanthrene) are major in acetonitrile or benzene. While the haloarenes 1 or 2 connecting the two arene rings by methylene is photoreduced, the other haloarene 5 or 6 connecting by ethylene is photocyclized. In cyclohexane or acetonitrile with a small amount of triethylamine, photoreduced reactions of 5 or 6 mainly occur. In acetonitrile with sodium hydroxide, toluene, or xylene, photocyclization of 5, 6 occur exclusively. The triplet state is mainly involved in the photocyclization of 5 or 6, because of the inhibition of oxygen.

• 약학회지
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• 제40권4호
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• pp.382-386
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• 1996

The compound of the 6,7-dichloroquinoline-5,8-dione has two asymmetric chloro radicals at the position of the C6 and C7. When the compound reacts with ethyl acetoacetate in the presence of sodium ethoxide, it is considered that C6 and/or C7 position of the compound can be substitued. The exact substitued position of the product (I) could not be identified by the NMR analysis in our experiment. Therefore, we synthesized the 3-ethoxycarbonyl-2-methyl-1-N-propyl pyridino(2,3f)indole-4,9-dione by reaction of the product (I) with propylamine via intramolecular cyclization to identify the substitued position of the product (I) using the X-ray crystallographic structure analysis. The result demonstrates that the position of nucleophilic substitution of the product (I) is at the position of the C6.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2003년도 춘계학술대회 논문집
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• pp.885-889
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• 2003

The e-catalog system consists of e-catalog database. e-catalog manager. and a web server, and provides e-catalog web service by displaying e-catalog documents that contain web 3D images. product specifications and manuals. Various web contents such as the 3D images of products, which offer basic viewpoints/movement handles and function simulations, product specifications, product manuals and product features, can be integrated into e-catalog documents in XML format through image manipulation and database connection by using the e-catalog manager tool. By reducing time and cost for publication and management of an e-catalog web service, the competitiveness of companies is expected to be intensified in the perspective of e-business activities.

• 전자공학회논문지B
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• 제31B권10호
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• pp.67-72
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• 1994

In this paper we suggest a 32 bit high speed parallel multiplier which plays an important role in digital signal processing. We employ a bit-pair recoding Booth algoritham that gurantees n/2 partial product terms, which uniformly handles the signed-operand case. While partial product terms are generated, a special method is suggested to reduce time delay by employing 1's complement instead of 2's complement. Later when partial products are added, the additional 1 bit's are packed in a single partial product term and added to in the parallel counter. Then 16 partial product terms are reduced to two summands by using successive parallel counters. Final multiplication value is obtained by a BLC adder. When this multiplier is simulated under 0.8$\mu$CMOS standard cell we obtain 30ns multiplier speed.