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Drug Bottle Delivery Robot Capable of Smartphone-Based Control and Image Process and Combining Wheel and Quadruped (스마트폰 제어 및 영상처리를 수행하는 바퀴와 4족을 결합한 약병 전송 로봇)

  • Lee, Sang Young;Kim, Hyun Su;Kim, Young Long;Hong, Seok Ho;Kim, Dong Hwan
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.37 no.4
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    • pp.569-579
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    • 2013
  • Robot control and image processing using a smartphone and Wi-Fi communication is introduced. The robot has a wheel and quadruped mechanism that is transformed according to the environment and is mainly used for drug bottle delivery. The captured image on the camera is transmitted to the smartphone in the form of stream data, and the image data is processed in the smartphone to enable the robot to identify an object and to control the robot itself. A network was constructed so that only image data from the stream data was used, and an image processing scheme to identify the drug bottle and deliver it to a person using a robot arm is also presented. In this study, image processing techniques and algorithms were purely implemented on a smartphone with considerable computational power and multiple functions rather than a computer, which contributes to the intelligence and miniaturization of the robot system.

A Collecting and Record of Wide Area Cultural Resources : the Case of Asian Cotton Cultural Resources (광역 문화자원의 수집과 기록 : 아시아 목화문화자원을 중심으로)

  • Noh, Shi-Hun
    • The Korean Journal of Archival Studies
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    • no.28
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    • pp.123-153
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    • 2011
  • In Asia, when cotton and cotton fabrics cultivated and produced in India of Southern Asia had spread to the whole Asia area by land and by sea, the Cotton Road and cotton fabric cultural area could be formed. In Korea, the traditional cotton (Gossypium arboreum) brought by Moon Ik-Jeom in 1363 was cultivated and then the Upland cotton (Gossypium hirsutum) brought via Japan could be produced from 1904. Especially, Gwangju/Jeonnam was the most active place in producing traditional cotton, and eventually became the center of cotton cultivation and fabric production after bringing in Upland cotton. In order to collect and record the cotton cultural resources in the broad area, the Cultural Resources Set, classified its component parts should be made first and then the collecting objects should be investigated. The collecting areas are selected based on the spreading paths and the regional significance of cotton. Since its difficulty of collecting the relevant resources from all of the places in Asia, it should be planned to share the resources through exchanges and cooperation among private, institution and organization. The relevant experts from the various fields should participate in the interdisciplinary researches which are necessary for collecting and recording of wide area cultural resources. Considering the collecting limitation of genuine relics, the digital archives should be established and then offered through a web site that everyone can use them freely by remote. It also needs to plan to display on and off-line for users to perceive the similarity, difference and interconnections of the resources with ease.

Construction of Record Retrieval System based on Topic Map (토픽맵 기반의 기록정보 검색시스템 구축에 관한 연구)

  • Kwon, Chang-Ho
    • The Korean Journal of Archival Studies
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    • no.19
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    • pp.57-102
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    • 2009
  • Recently, distribution of record via web and coefficient of utilization are increase. so, Archival information service using website becomes essential part of record center. The main point of archival information service by website is making record information retrieval easy. It has need of matching user's request and representation of record resources correctly to making archival information retrieval easy. Archivist and record manager have used various information representation tools from taxonomy to recent thesaurus, still, the accuracy of information retrieval has not solved. This study constructed record retrieval system based on Topic Map by modeling record resources which focusing on description metadata of the records to improve this problem. The target user of the system is general web users and its range is limited to the president related sources in the National Archives Portal Service. The procedure is as follows; 1) Design an ontology model for archival information service based on topic map which focusing on description metadata of the records. 2) Buildpractical record retrieval system with topic map that received information source list, which extracted from the National Archives Portal Service, by editor. 3) Check and assess features of record retrieval system based on topic map through user interface. Through the practice, relevance navigation to other record sources by semantic inference of description metadata is confirmed. And also, records could be built up as knowledge with result of scattered archival sources.

Evaluation of Appraisal and Disposal Function of the Standard Records Management System (표준기록관리시스템 평가·폐기 기능 평가)

  • Lee, Bo-Ram
    • The Korean Journal of Archival Studies
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    • no.38
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    • pp.37-73
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    • 2013
  • Legislative stability of the production and management of electronic records and the enhancement of infrastructure have reached significant levels through relentless efforts of academic and public institutions in the field. In addition, appraisal and disposal of records also have to be done by retention periods, business functions, administrational and historical values, and certain procedures. The law specifies that public institutions must assign record managers. The underlying reason is for record managers to arbitrate the review process when records are to be evaluated and discarded and to prevent unauthorized disuses. It is also for just evaluations with the professionalism. Evaluation and discard of records have significant meanings in record management. Thus, these processes need to be handled properly in the standard record management system. Evaluation should be proceeded by the law enacted under the task functional and social agreement. Since, the record discard is decided through the technical and logical process, the support for evaluation and discard works are important above all things. In this paper, I deducted functional requirements of standard record management system by analyzing methods including the analysis of legislation and standard related to electronic records and the examination of the user's manual of record management system. I researched through the interviews of the record managers in public institutions. Based on this research, I deducted the implications for the evaluation of standard record management system and the estimation of functional requirements for discard. I also discussed future directions of improvements and follow-up studies.

The Facets of Korean Documentary Photography (한국 기록사진의 개념 형성과 전개)

  • Park, Ju Seok
    • The Korean Journal of Archival Studies
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    • no.27
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    • pp.169-208
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    • 2011
  • In this thesis, I pursued how the concept of documentary photography in Korea was formed, and how Koreans perceive the current mix of some concepts and how they are tracked that. Korean photography society, directly or indirectly, accepted the concept and format of documentary photography of the United States in which information and discussion of the history and concept by examining the process of being transferred to Korea are examined. Giroksajin(記錄寫眞) is a translation word of documentary photography which was a part of documentary movements in the United States of the 1930s, and are all based on that concept. When we order Korean documentary photography and the subject matter must be distinct, attitude toward the things should be based on the exact perceptions of this age awareness, to be able to give enough information, and finally moved forward to move the human emotion must be. When this condition is equipped with the photographers and archivists perspective is revealed clearly the social and historical records that are meaningful. Documentary photography is the subject of the photographers and archivists that want to record the important things, but what you can get in the records and the question of how to use it is also important. Korean documentary photography, not only records the things, just to have a meaningful supplement to get done the exact context of information production and led to the conclusion that the strengthening of documentation strategies.

Comparative Study of Commercial CFD Software Performance for Prediction of Reactor Internal Flow (원자로 내부유동 예측을 위한 상용 전산유체역학 소프트웨어 성능 비교 연구)

  • Lee, Gong Hee;Bang, Young Seok;Woo, Sweng Woong;Kim, Do Hyeong;Kang, Min Ku
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.37 no.12
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    • pp.1175-1183
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    • 2013
  • Even if some CFD software developers and its users think that a state-of-the-art CFD software can be used to reasonably solve at least single-phase nuclear reactor safety problems, there remain limitations and uncertainties in the calculation result. From a regulatory perspective, the Korea Institute of Nuclear Safety (KINS) is presently conducting the performance assessment of commercial CFD software for nuclear reactor safety problems. In this study, to examine the prediction performance of commercial CFD software with the porous model in the analysis of the scale-down APR (Advanced Power Reactor Plus) internal flow, a simulation was conducted with the on-board numerical models in ANSYS CFX R.14 and FLUENT R.14. It was concluded that depending on the CFD software, the internal flow distribution of the scale-down APR was locally somewhat different. Although there was a limitation in estimating the prediction performance of the commercial CFD software owing to the limited amount of measured data, CFX R.14 showed more reasonable prediction results in comparison with FLUENT R.14. Meanwhile, owing to the difference in discretization methodology, FLUENT R.14 required more computational memory than CFX R.14 for the same grid system. Therefore, the CFD software suitable to the available computational resource should be selected for massively parallel computations.

A Policy-Based Meta-Planning for General Task Management for Multi-Domain Services (다중 도메인 서비스를 위한 정책 모델 주도 메타-플래닝 기반 범용적 작업관리)

  • Choi, Byunggi;Yu, Insik;Lee, Jaeho
    • KIPS Transactions on Software and Data Engineering
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    • v.8 no.12
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    • pp.499-506
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    • 2019
  • An intelligent robot should decide its behavior accordingly to the dynamic changes in the environment and user's requirements by evaluating options to choose the best one for the current situation. Many intelligent robot systems that use the Procedural Reasoning System (PRS) accomplishes such task management functions by defining the priority functions in the task model and evaluating the priority functions of the applicable tasks in the current situation. The priority functions, however, are defined locally inside of the plan, which exhibits limitation for the tasks for multi-domain services because global contexts for overall prioritization are hard to be expressed in the local priority functions. Furthermore, since the prioritization functions are not defined as an explicit module, reuse or extension of the them for general context is limited. In order to remove such limitations, we propose a policy-based meta-planning for general task management for multi-domain services, which provides the ability to explicitly define the utility of a task in the meta-planning process and thus the ability to evaluate task priorities for general context combining the modular priority functions. The ontological specification of the model also enhances the scalability of the policy model. In the experiments, adaptive behavior of a robot according to the policy model are confirmed by observing the appropriate tasks are selected in dynamic service environments.

A Design and Implementation of Floor Detection Application Using RC Car Simulator (RC카 시뮬레이터를 이용한 바닥 탐지 응용 설계 및 구현)

  • Lee, Yoona;Park, Young-Ho;Ihm, Sun-Young
    • KIPS Transactions on Software and Data Engineering
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    • v.8 no.12
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    • pp.507-516
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    • 2019
  • Costs invested in road maintenance and road development are on the rise. However, due to accidents such as portholes and ground subsidence, the risks to the drivers' safety and the material damage caused by accidents are also increasing. Following this trend, we have developed a system that determines road damage, according to the magnitude of vibration generated without directly intervening the driver when driving. In this paper, we implemented the system using a remote control car (RC car) simulator due to the limitation of the environment in which the actual vehicle is not available in the process of developing the system. In addition, we attached a vibration sensor and GPS sensor to the body of the RC car simulator to measure the vibration value and location information generated by the movement of the vehicle in real-time while driving, and transmitting the corresponding data to the server. In this way, we implemented a system that allows external users to check the damage of roads and the maintenance of the repaired roads based on data more easily than the existing systems. By using this system, we can perform early prediction of road breakage and pattern prediction based on the data. Further, for the RC car simulator, commercialization will be possible by combining it with business in other fields that require flatness.

A study on the applicability of power usage method for the analysis of river water intake (하천수 취수량 분석을 위한 전력량법의 적용성 연구)

  • Baek, Jongseok;Kim, Chiyoung;Cha, JunHo;Song, Jaehyun
    • Journal of Korea Water Resources Association
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    • v.52 no.12
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    • pp.975-984
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    • 2019
  • As an essential prerequisite for systematic and integrated management of river water, it is necessary to secure the basic data such as discharge supplied to the river and released from the river. Under the current permit system for river water use, 59.1% of licensed facilities were found to have no discharge meters in 2017, especially for agricultural water, which makes it difficult to secure reliable data as a large portion of the reports are voluntarily reported by users. In this study, the indirect discharge measurement method of calculating the discharge through the power usage of the pumping station was applied to secure reliable discharge data. In particular, focusing on the fact that the discharge calculated by the power usage method differed with the actual discharge according to the level of the river, the study was conducted on improving the power usage method reflecting the river water level and improving the accuracy of discharge data. Analysis of the discharge calculated using the power usage method considering river water level using the correlation analysis method such as regression analysis, percent difference, root mean square error etc. confirmed that the results are not high compared to the conventional power usage method, but are slightly more approximated to the actual discharge. Therefore, although reliable discharge data can be obtained from the existing power usage method, it is expected that more accurate data on intaking water of river water can be obtained if the improved power usage method is used at points where the variation in the water level of the river is large.

Study on Driving Simulation of Spoke-type Shield TBM Considering Operation Conditions (TBM 운전조건을 고려한 스포크형 쉴드TBM의 굴진모사 연구)

  • Choi, Soon-Wook;Lee, Hyobum;Choi, Hangseok;Chang, Soo-Ho;Kang, Tae-Ho;Lee, Chulho
    • Tunnel and Underground Space
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    • v.29 no.6
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    • pp.456-467
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    • 2019
  • In this study, the discrete element method was used to simulate the excavation of spoke-type shield TBM. The horizontal stress coefficient was used for the ground to simulate the increase of the horizontal stress according to the depth, and the driving conditions were set based on the torque generated from the cutterhead of the TBM to excavate within the operating range. That is, when the value of the torque generated at the cutterhead exceeds the given operating condition, the speed of excavation is constantly reduced, and conversely, the method of increasing the speed of excavation is considered. The change speed of the excavation was given the minimum change requirement in consideration of the driver's review time, and the change was possible according to the excavation conditions. In order to use these conditions, the user-subroutine was considered separately, and the results show that the DEM model were able to analyze the excavation within the considered operating range.