• IE interfaces
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• v.11 no.1
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• pp.85-95
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• 1998

This study is focussed on an optimal vehicle routing model for multi-supply centers in two-echelon logistic system. The aim of this study is to deliver goods for demand sites with optimal decision. This study investigated an integrated model using step-by-step approach based on relationship that exists between the inventory allocation and vehicle routing with restricted amount of inventory and transportations such as the capability of supply centers, vehicle capacity and transportation parameters. Three sub-models are developed: 1) sector-clustering model, 2) a vehicle-routing model based on clustering and a heuristic algorithm, and 3) a vehicle route scheduling model using TSP-solver based on genetic and branch-and-bound algorithm. Also, we have developed computer programs for each sub-models and user interface with visualization for major inputs and outputs. The application and superior performance of the proposed model are demonstrated by several sample runs for the inventory-allocation and vehicle routing problems.

• Journal of Digital Convergence
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• v.19 no.1
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• pp.343-348
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• 2021

This study investigated the method of constructing and combining blocks based on the atomic design system in order to propose a framework for rescue of a reusable design system. For that, I first looked at the necessity of a design system and examples of snow white, skeuomorphic design, flat design, and material design. In addition, molecules, atoms, organisms, templates and pages of atomic design using the principles of chemistry as metaphors were defined through literature studies. In order to implement a new framework, an interface inventory was constructed, and among them, font, color, image and control elements were extracted as core visual elements, and guidelines were defined, and molecular elements were classified and composed of atoms based on them. Blocks are constructed in the form of blocks based on the design pattern most used in the content inventory, and the framework is constructed to implement a layout based on a visual grid and design a page through a combination of blocks. The significance of this paper is that the new framework helps team consistency and collaboration by reusing blocks and supports file sharing and updating.

• Korean Journal of Remote Sensing
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• v.35 no.2
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• pp.317-326
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• 2019

Development projects and related environmental impacts take place in space. Therefore, it is important to use spatial information in the environmental impact assessment process. This study proposes to construct spatial information produced by various organizations as an inventory and suggests it to be utilized in environmental impact assessment process. For this purpose, investigate the use of spatial information in the environmental impact assessment process and list of environmental space information provided by public information systems. and applied the methodology derived from previous studies to build an inventory of spatial information using environmental impact assessment. The spatial information utilized in the environmental impact assessment work was 64 items. Based on the data availability, linkage and renewability, the spatial information of the Environment that can be used for the environmental impact assessment was 45 items. Finally 49 items, including 19 new items were presented as an inventory, contributing to the performance of environmental impact assessment based on spatial information.

• Journal of the Korea Safety Management & Science
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• v.16 no.2
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• pp.147-155
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• 2014

This paper suggests a specific model that could efficiently improve the interaction and the interface between WMS(Warehouse Management System) terminal and PDA terminal through real time processing in manufacturing shop. The proposed model shows that the new method can more efficiently perform to reduce processing time for shipping and receiving, compared with the current approach. As a result of the certain test among the main server, WMS system, and PDA terminal, it is noted in case of the new proposed system that the effects of proposed model are as follows: (a) While the receiving lead time for carrying by the current method was 2 hours, the receiving lead time by the new method was 20 minutes. (b) While the shipping lead time for carrying by the current method was 1 hours, the shipping lead time by the new method was 15 minutes. (c) While the inventory rate of accuracy by the current method was 85%, the inventory rate of accuracy by the new method was 98%.

• Proceedings of the KSPS conference
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• 2002.11a
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• pp.119-122
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• 2002

This paper focuses on building up a database of commercial stocks using XML syntax and looks into a way of building up a system with the combination of XML and XSLT that provides connectivity to client-server databases through vocal means. The use of XSLT has several advantages. Most importantly, it can transform a type of data into different formats. A vocal interface minimizes some space and time limits imposed on users outside premises when they need an instant connection to their database. In this fashion, the users can check information on stock lists without being pressurized by certain limits. PC, PDAs and cellular phones are some examples of mobile connection. The use of VoiceXML creates vocal applications. In VoiceXML servies, users can gain immediate access to data upon the input of their voices and the DTMF signals of the telephone.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.11 no.2
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• pp.161-168
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• 2018

In this study, IT based traceability system which is able to measure weight and moisture content of grain in the post-harvest process of intake, drying, storage and milling was developed in RPC(Rice processing complex). Measured information of weight, moisture content, yield, loss and quality was saved in the DB sever. Simultaneously, lot No. was generated and connecting to quality and traceability information. Also, automatic control system with MMI(Man Machine Interface) and yield and inventory control system(YICS) for grain was developed for the traceability system by applying the TCP/IP communication. In addition, simulation of system was performed for evaluation in RPC.

• Journal of Korean Society for Geospatial Information Science
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• v.6 no.1 s.11
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• pp.53-63
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• 1998

The purpose of this study is to investigate the current status of automatic measuring systems for air pollution emissions in Seoul and to suggest an improvement method using GIS and GPS. In Korea, there have been very few critical researches and managements for mobile and area sources regarding moving subjects such as automobiles. In order to control or to make a plan for reducing air pollutions, air pollution emission data based on tim and location, emission inventory systems and emission models should be implemented. Using digital maps and MS Visual Basic, we developed a visualized interface for air pollution emission data from automatic emission measurement systems in Seoul.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.01a
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• pp.9-10
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• 2015

본 논문에서는 블루투스 4.0(BLE) 기반의 비콘을 이용하여, 공항에서 물건을 찾을 때, 물건(가방)에 비콘을 장착하고 비콘의 신호를 받아 알림(Notification)을 주는 System으로써, 사용자의 편리성을 위하여 안드로이드 4.3이상 버전의 스마트 폰 Application으로 개발하였다. 스마트 폰과 비콘 사이에는 블루투스를 기술을 이용하여 통신하며, 비콘은 신호를 송신, 스마트 폰에서는 수신한다. 이러한 기능으로 Estimote사의 공개된 Software Development Kit(이하 SDK)를 바탕으로 개발을 진행하였다. SDK의 대표적인 기능으로 비콘의 정보와 연결 상태를 관리하는 객체, 그리고 Listener를 통해 범위 내 비콘을 탐색하는 기능을 정의할 수 있다. 또한 User Interface를 고려하여 사용자의 편이성과 접근성에 중점을 두어, 화면 구성에 많은 노력을 기울였다. 따라서 사용자의 배경지식, 연령대를 고려하더라도 쉽게 이용이 가능하도록 개발하였다.

• 한국HCI학회:학술대회논문집
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• 2008.02b
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• pp.482-487
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• 2008

Animated Character는 컴퓨터와 인간 간의 상호작용을 증진시킬 수 있는 방편으로 널리 연구가 이루어지고 있다. 본 연구에서는 Animated Character의 감시가 과제 난이도에 따른 수행과 정서에 미치는 영향을 알아보고자 하였다. 본 실험에서 실험 참가자들은 통제 집단과 감시 Animated Character 조건에 무선으로 배정되어 난이도 세 수준의 글자계산 과제를 수행하였다. 또한 정서에 미치는 영향을 알아보기 위해 상태 특성 자기평가 불안척도(State-Trait Anxiety Inventory; STAI)를 사용하였다. 실험참가자들의 수행은 과제의 정답률과 반응시간을 측정을 통해 평가되었다. 실험결과 감시 Animated Character 조건은 통제 조건 보다 유의미하게 높은 불안(Anxiety)의 증가가 있었다. 또한 감시 Animated Character 조건은 높은 난이도의 글자 계산 과제에서 통제 조건 보다 유의미하게 높은 수행을 보였다. 본 연구는 Animated Character의 감시가 과제 난이도에 따라 다른 영향을 가진다는 것을 밝힘으로써 향후 감시 시스템 등에 Animated Character를 적용함에 있어 구체적인 가이드라인을 제공한다.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.17 no.31
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• pp.99-114
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• 1994

The introduction of new equipments to strengthen the competitiveness of enterprises is one of pretty important factors. Enterprises introducing new equipments strengthen competitiveness through productivity increasing, high quality maintenance, inventory reduction, improved design and production interface, simple scheduling process, low scrap rate, rework reduction, etc. Managers will work out the best equipment-replacing strategy through the appropriate combination of potential cost attributes and qualitative attributes difficult to quantify in accordance with the business purpose. This study is to present a method to select an equipment-replacing alternative through the decision-making model of Analytic Hierarchy Process in consideration of the differences of cost flow of the alternatives, taking into consideration tangible attributes and strategic intangible attributes.