• Journal of the Korean Society for Precision Engineering
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• v.17 no.8
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• pp.198-206
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• 2000

This paper describes a research work of developing automated progressive process planning system for working electric products. An approach to the CAD system in based on the knowledge-based rules. Knowledge for the CAD system is formulated from plasticity theories experimental results and the empirical knowledge of field experts. The system has been written in AutoLISP on the AutoCAD with a personal computer and is composed of three main modules which are input and shape treatment flat pattern layout and strip layout module. Based on knowledge-based rules the system is design by considering several factors such as radius and angle of bend material and thickness of product complexities of blank geometry and punch profile bending sequence and availability of press. Strip layout drawing automatically generated by piercing with punch profiles divided into for external area is simulated in 3-D graphic forms including bending sequences for the product with piercing and bending. Results obtained using the modules enable the manufacture of electronic products to be more efficient in this field.

• Journal of the Society of Naval Architects of Korea
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• v.59 no.5
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• pp.323-329
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• 2022

This paper suggests an example guideline of a safety zone layout for the domestic LNG Truck-To-Ship (TTS) bunkering. The safety zone is one of the controlled area in LNG bunkering and its layout is required as a fundamental safety barrier. While the international standard provides a layout methodology of the safety zone, its detail application is not user-friendly and only possible with a level of the process engineering. In the domestic case, the enforcement regulations are applied for LNG bunkering but the safety zone is not properly defined for TTS operation. Considerations are made for the intuitive approach of the safety zone layout and an example guideline is suggested for application in the domestic TTS bunkering. A technical background of the guideline is described and its applicability is demonstrated with regard to the characteristics of TTS bunkering. The findings of the study are summarized in association with a practical layout of the safety zone, contributing to the safety culture in the domestic LNG bunkering.

• Journal of the Korea Institute of Military Science and Technology
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• v.26 no.5
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• pp.400-408
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• 2023

The tracking accuracy of buoy-based LBL(Long Base Line) systems can be significantly influenced by sea environmental conditions. Particularly, the position of buoys that may have drifted due to sea currents. Therefore it is necessary to predict and optimize the drifted-buoy positions in the deploying step. This research introduces a free-drift simulation model using ocean data from the European CMEMS. The simulation model's predictions are validated by comparing them to actual sea buoy drift tracks, showing a substantial match in averaged drift speed and direction. Using this drift model, we optimize the initial buoy layout and compare the tracking performance between the center hexagonal layout and close track layout. Our results verify that the optimized layout achieves lower tracking errors compared to the other two layout.

• Proceedings of the IEEK Conference
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• 2000.06b
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• pp.246-249
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• 2000

In this paper, we describe an automated extraction program that transforms a mask layout into an approximated equivalent circuit information suitable for circuit simulation, and that extract the geometric parameters of stacked MOSFETs and the distributed RCs of layout blocks. To extract equivalent circuit from mask layout, we propose new block disassembly technique capable of accurate computations of distributed RCs at branch point, using vectorized edges which represent the outline of an individual polygon.

• Proceedings of the Korea Institute of Applied Superconductivity and Cryogenics Conference
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• 2002.02a
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• pp.141-143
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• 2002

We have simulated and Laid out a Single Flux Quantum(SFQ) AND gate for Arithmetic Logic Unit by using XIC, WRspice and Lmeter. This circuit is a combination of two D Flip-Flop. D Flip- Flop and dc SQUID are the similar shape from the fact that it has the a loop inductor and two Josephson junction. We also obtained operating margins and accomplished layout of the AND gate. We got the margin of $\pm$42% over.

• Journal of applied mathematics & informatics
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• v.26 no.1_2
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• pp.283-290
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• 2008

This paper is motivated by the problem of fitting a group of cuboids into a simplified rotating vessel of the artificial satellite. Here we introduce a combinatorial optimization model which reduces the three-dimensional layout problem with behavioral constraints to a finite enumeration scheme. Moreover, a global combinatorial optimization algorithm is described in detail, which is an improved graph-theoretic heuristic.

• Bioinformatics and Biosystems
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• v.1 no.1
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• pp.61-66
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• 2006

We propose a new fragment assembly program MLP (mate-based layout with PHRAP). MLP consists of PHRAP, repeat masking, and a new layout algorithm that uses the mate pair information. Our experimental results show that by using MLP instead of PHRAP, we can significantly reduce the difference between the assembled sequence and the original genome sequence.

• Journal of Korean Society for Quality Management
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• v.21 no.2
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• pp.232-241
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• 1993

The objective of this study is to develop an algorithm in the consideration of importance Weight and desirable shape of specific department in the computerized layout planning. Quantitative relationship chart between each department was used. It is decided that the priority among the department as to variable factors and the optimum quantitative relationship chart was obtained using by the Weighting method. The algorithm presented in this study could generate more practical layout for the actual design problem.

• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.245-252
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• 2009

We present a design for personalisation of a chording keyboard. There are two primary design goals. Firstly, the keyboard layout should be easy to learn, and easy to use, taking into account the background and physical constraints of the user. Secondly, the keyboard layout should be readily extensible, based on the previous behaviour of the keyboard user. The design proposal accomplishes these goals, and can be simply implemented on cost-effective hardware. In addition, we present preliminary experimental results on optimising the initial keyboard layout.

• Journal of the Korean Operations Research and Management Science Society
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• v.13 no.2
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• pp.215-215
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• 1988

This paper presents a fuzzy set theory based formulation and heuristic which will allow plant layout problems to be solved for more than two input goals with different weights. The heuristic combines a construction and improvement procedure to generate a good layout from the formulation. To test the effectiveness of the heuristic, a set of examples previously used by various authors is solved and the results are compared to those from other known heuristics. The comparison indicates that the proposed method performs well for each of seventeen classical test problems.