• Smart Structures and Systems
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• v.18 no.1
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• pp.1-16
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• 2016

Model Order Reduction (MOR) denotes the theory by which one tries to catch a model of order lower than that of the real model. This is conveniently pursued in view of the design of an efficient structural control scheme, just passive within this paper. When the nonlinear response of the reference structural system affects the nature of the reduced model, making it dependent on the visited subset of the input-output space, standard MOR techniques do not apply. The mathematical theory offers some specific alternatives, which however involve a degree of sophistication unjustified in the presence of a few localized nonlinearities. This paper suggests applying standard MOR to the linear parts of the structural system, the interface remaining the original unreduced nonlinear components. A case study focused on the effects of a helicopter land crash is used to exemplify the proposal.

• Journal of the Korea Safety Management & Science
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• v.5 no.2
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• pp.75-85
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• 2003

Manufacturing firms have adapted seriously the Design for Manufacture and Assembly (DFMA) techniques which consider concurrently all factors related to the product development by using effective communications and sharing of information on product development processes. This study performed modelling and characterizing the data related to product manufacturing information for Design for Manufacture(DFM) evaluation and analysis. It adapted component-based development method for communicating and managing manufacturing information among distributed manufacturing organizations. Introducing component-based development offers safety and speed to network based system. This development using Unified Modelling Language(UML) provides efficient way for reconstruction and distribution of applications. Also, the integration of database and component into the internet environment enables to communicate and manage effectively manufacturing information for DFM evaluation and analysis at any place in the world. Therefore this system can make it more reasonable that evaluating, analyzing, and effective decision making of product design using DFM technique.

• Journal of Haehwa Medicine
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• v.17 no.2
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• pp.1-15
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• 2008

Objectives : The aim of this study was to improve the prevention and curative effect for gastroenteric disease through Oriental medicine literary investigation. Method :The present study was surveyed Oriental medicine literary about regimen for gastroenteric disease Results and Conclusion : The regimen for gastroenteric disease require regimen of timely action, emotional regulation, living conditions, diet adjustment and exercise. 1. The regimen for timely action is making adaptation of seasonality. 2. The regimen for emotional regulation is to be moderate in the anger, sorrows, worry, thinking and need the mental rest. 3. The regimen for living conditions is a balance of mind and body and a training physical strength. 4. The regimen for diet adjustment is to be moderate in eating and drinking 5. The regimen for exercise is to take proper exercise like a walk lightly or therapy of breathing technique or techniques of tuina, etc.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2007.04a
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• pp.327-332
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• 2007

An engineering design problem involving Multi-Disciplinary Analysis(MDA) generally requires a large amounts of CPU time for the entire design process, and therefore Multiple Processing System (MPS) are essential to reduce the completion time. However, when applying conventional parallel processing techniques, all of the CAE S/W required for the MDA should be installed on all the servers making up NIPS because of characteristic of MDA and it would be a great expense in CAE S/W licenses. To solve this problem, we propose a Weight-based Multiqueue Load Balancing algorithm for a heterogeneous MPS where performance of servers and CAE S/W installed on each server are different of each other. To validate the performance, a computational experiments comparing the First Come First Serve algorithm and our proposed algorithm was accomplished.

• Proceedings of the Korea Crystallographic Association Conference
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• 2002.11a
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• pp.52-52
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• 2002

Recently, nanoporous low-k materials using porogen (pore generating material) template method have gained much attraction due to the feasible advantage of dielectric constant decrease with the increase of porogen content, which is burning out and making air void by thermal curing. In nanoporous thin films, further, control of pore size and its distribution is very important to retain suitable thermal, mechanical and electrical properties. In this study, nanoporous low-k films were prepared with MTMS-BTMSE copolymer and porogen. The effect of interaction of copolymer matrix and porogen on pore size and distribution was comparatively to investigate with molecular structure and end functional group. The characterization of nanoporous thin film prepared was also performed using various techniques including NMR, GPC, Ellipsometer, FE-SEM, TGA, and FT-IR.

• Journal of Veterinary Clinics
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• v.26 no.3
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• pp.189-199
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• 2009

With the growing importance of evidence-based medicine, clinical or biomedical research relies critically on the validity and reliability of data, and the subsequent statistical inferences for medical decision-making may lead to valid conclusion. Despite widespread use of analytical techniques in papers published in the Journal of Veterinary Clinics statistical errors particularly in design of experiments, research methodology or data analysis methods are commonly encountered. These flaws often leading to misinterpretation of the data, thereby, subjected to inappropriate conclusions. This article is the first in a series of nontechnical introduction designed not to systemic review of medical statistics but intended to provide the journal readers with an understanding of common statistical concepts, including data scale, selection of appropriate statistical methods, descriptive statistics, data transformation, confidence interval, the principles of hypothesis testing, sampling distribution, and interpretation of results.

• Journal of Korean Society for Geospatial Information Science
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• v.5 no.1 s.9
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• pp.93-101
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• 1997

The purpose of this paper is to study the using method of the satellite image processing and GIS(Geographic Information System) map-algebra for the sustainable (land-use) plan. The research has been made by the two kinds of approaching steps. The first one is to allocate the sustainable zoning which is applicable to the environmental and the legal restriction elements base on space structure. The second one is to make a more sustainable plan through the extension of analysis range and the inclusion of analyzed environmental impacts within the plan making processes.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.22 no.50
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• pp.257-266
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• 1999

The objective of this study is to suggest DARE (Decision Alternative Ratio Evaluation) Method, which is usually using in VE(Value Engineering), as one of the evaluating alternatives techniques, especially deciding location. The process of solving location problem consists of 4 stages which are Data gathering and Confirming check list, Design of evaluating methodology, Evaluating, and Conclusion. In second stage which is the most important one among those, DARE method is adopted to solve location problem as a objective and scientific technique. The members who are participated workshop extremely agree to whole procedure of methodology and also their own conclusion through Workshop. This case study shows DARE method fits with select optimal location.

• Journal of the Korea Safety Management & Science
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• v.4 no.1
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• pp.115-129
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• 2002

On a conceptual point of SCM, as a order of development, physical distribution, logistics management, basic supply chain management and advanced supply chain management etc. they are magnifying gradually, confusing with information and analysis techniques which seems possible. But on executing, it has a lot of problems because it is so complex and wide, so the enterprise which knows necessity of SCM, they don't have a total execution solution. On this paper, we will focus a proposal of alternatives with reasonableness of manufacturing and making a profit of sales department like most of enterprises to overcome carelessness and unready strategy of investment. And we will find a element through a analysis of cases, a statistical method of effective SCM, and actual survey to propose a alternative proposal. And, we will Prove the facts that it could be a guiding company which has a ability of cooperation with entities through the founding of supply chain, On the conclusion, we will show the variation which influences for capacity entities and alternative proposal to define a element which influence for a cause and effect basically.

• International Journal of Concrete Structures and Materials
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• v.3 no.1
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• pp.33-37
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• 2009

Fiber Bragg grating (FBG) sensors already have been the focus for structural health monitoring (SHM) due to their distinguishing advantages. However, as bare optical fiber is very fragile, bare FBG strain sensor without encapsulation can not properly be applied in practical infrastructures. Therefore encapsulation techniques for making encapsulated FBG strain sensor show very important in pushing forward the application of FBG strain sensors in SHM. In this paper, a simplified approximate method to analyze the stress transferring rules for embedded FBG strain sensors in concrete monitoring is put forward according to mechanics of composite materials. Shear lag theory is applied to analyze the stress transferring rule of embedded FBG strain sensor in measured host material at the first time. The measured host objects (concrete) and the encapsulated FBG strain sensor are regarded as a composite, and then the stress transfer formula and stress transfer coefficient of encapsulated FBG strain sensor are obtained.