• Title/Summary/Keyword: site suitability

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Structural health monitoring of a newly built high-piled wharf in a harbor with fiber Bragg grating sensor technology: design and deployment

  • Liu, Hong-biao;Zhang, Qiang;Zhang, Bao-hua
    • Smart Structures and Systems
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    • v.20 no.2
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    • pp.163-173
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    • 2017
  • Structural health monitoring (SHM) of civil infrastructure using fiber Bragg grating sensor networks (FBGSNs) has received significant public attention in recent years. However, there is currently little research on the health-monitoring technology of high-piled wharfs in coastal ports using the fiber Bragg grating (FBG) sensor technique. The benefits of FBG sensors are their small size, light weight, lack of conductivity, resistance corrosion, multiplexing ability and immunity to electromagnetic interference. Based on the properties of high-piled wharfs in coastal ports and servicing seawater environment and the benefits of FBG sensors, the SHM system for a high-piled wharf in the Tianjin Port of China is devised and deployed partly using the FBG sensor technique. In addition, the health-monitoring parameters are proposed. The system can monitor the structural mechanical properties and durability, which provides a state-of-the-art mean to monitor the health conditions of the wharf and display the monitored data with the BIM technique. In total, 289 FBG stain sensors, 87 FBG temperature sensors, 20 FBG obliquity sensors, 16 FBG pressure sensors, 8 FBG acceleration sensors and 4 anode ladders are installed in the components of the back platform and front platform. After the installation of some components in the wharf construction site, the good signal that each sensor measures demonstrates the suitability of the sensor setup methods, and it is proper for the full-scale, continuous, autonomous SHM deployment for the high-piled wharf in the costal port. The South 27# Wharf SHM system constitutes the largest deployment of FBG sensors for wharf structures in costal ports to date. This deployment demonstrates the strong potential of FBGSNs to monitor the health of large-scale coastal wharf structures. This study can provide a reference to the long-term health-monitoring system deployment for high-piled wharf structures in coastal ports.

Fabrication of smart alarm service system using a tiny flame detection sensor based on a Raspberry Pi (라즈베리파이 기반 미소 불꽃 감지를 이용한 스마트 경보 서비스 시스템 구현)

  • Lee, Young-Min;Sohn, Kyung-Rak
    • Journal of Advanced Marine Engineering and Technology
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    • v.39 no.9
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    • pp.953-958
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    • 2015
  • Raspberry Pi is a credit card-sized computer with support for a large number of input and output peripherals. This makes it the perfect platform for interaction with many different devices and for usage in a wide range of applications. When combined with Wi-Fi, it can communicate remotely, therefore increasing its suitability for the construction of wireless sensor nodes. In addition, data processing and decision-making can be based on artificial intelligence, what is performed in developed testbed on the example of monitoring and determining the confidence of fire. In this paper, we demonstrated the usage of Raspberry Pi as a sensor web node for fire-safety monitoring in a building. When the UV-flame sensors detect a flame as thin as that of a candle, the Raspberry Pi sends a push-message to notify the assigned smartphone of the on-site situation through the GCM server. A mobile app was developed to provide a real-time video streaming service in order to determine a false alarm. If an emergency occurs, one can immediately call for help.

A Study on Developing a Patient Gown for Spinal Surgery Patients - Focusing on Female Patients - (척추 수술 환자를 위한 환자복 개발에 관한 연구 - 여성 환자들을 중심으로 -)

  • Park, Jeong-Eun;Nam, Young-Ran;Choi, Hei-Sun
    • Journal of the Korean Society of Costume
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    • v.62 no.7
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    • pp.205-219
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    • 2012
  • The purpose of this study is to develop comfortable patient gown for spinal surgery patients. The results of the survey confirmed inconveniences and problems with the current gown, and a new gown style was recommended. The recommended changes addressed design, pattern, and materials. The final experimental design for the top of the new patient gown is a wrap style that moves the center opening of the gown to the side and enables patients to control the length of the sleeves by attaching two snaps. The cutting line is aligned with the back brace location, and the issue of repeated bunching of the gown material by the brace was solved by substituting 100% knitted structure fiber. The sleeve length can be adjusted with snaps on the sleeve cap and hem. When lifting up the gown for treatment on specific areas of the body, doctors open the edge of the right side of the gown in order to lift up the top. The bottom of the new patient gown was made from 100% cotton knitted structure fiber, and it enables patients to control the length of pants by attaching two snaps on the side. The results of an on-site dressing suitability evaluation and a flexibility evaluation with respect to dressing/undressing indicated that the new patient gown was much better received than the existing gowns (A and B). Our hypothesis regarding new patient gowns was supported in both the fit and design categories.

A Study on Usage and Demand of the Business Simulation Game, and Design of the Course Model (경영시뮬레이션게임의 활용실태와 교과모형)

  • Lee, Jae-Won
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.1
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    • pp.73-86
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    • 2012
  • This study has the purpose to increase the suitability for the introduction and operation of the curriculum utilizing business simulation games from university education. So we investigated about the usage in management education department of domestic and foreign universities, institutions target for enterprise level education, and giant companies such as Samsung and LG. We surveyed about the demand of it from college students at the management and engineering departments and then designed two basic course models. As research methods, literature research, on-site experts and operators interview on domestic enterprises and institutions of representative companies was conducted. We analysed the course syllabi of some domestic and about 50 foreign universities utilizing it with the literature review. Then we analysed the result of usage investigation and demand survey. According to the results, the relatively small number of universities and corporate institutions compared to U.S. were utilizing it for their training courses in short-term and partial Lab. Results are expected to be used in the training courses of business administration in universities and corporate.

Facilities Management Using Multi-Dimension Spatial Information (다차원 공간정보를 이용한 시설물관리)

  • Choi, Seok-Keun;Jo, Ui-Hwan;Lee, Byung-Yong
    • Journal of Korean Society for Geospatial Information Science
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    • v.18 no.1
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    • pp.41-46
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    • 2010
  • The latest multi-dimension spatial information technology is emerging its importance as material for carrying out efficient facilities management's supporting business about numerous facilities inside a university, budgeting decision-making supporting business such as operating expenses' budgeting and management, etc. and admission advertisement, etc. Accordingly, the present study selected an optimal location that can maximize spatial utilization of a building to be newly built by constructing multi-dimension spatial information for facilities management of a university, and executed a site suitability analysis according to transfer of a university symbol and a landscape analysis, etc. according to external environment change. As a result, it appeared that the effects such as prevention of duplicate investment and budget saving, etc. due to university's comfortable spatial composition and systematic comprehensive development & budgeting or decision-making support in case of execution, etc. caused by rationalization of facilities plan & management can be maximized.

Development and Use of Digital Climate Models in Northern Gyunggi Province - II. Site-specific Performance Evaluation of Soybean Cultivars by DCM-based Growth Simulation (경기북부지역 정밀 수치기후도 제작 및 활용 - II. 콩 생육모형 결합에 의한 재배적지 탐색)

  • 김성기;박중수;이영수;서희철;김광수;윤진일
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.6 no.1
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    • pp.61-69
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    • 2004
  • A long-term growth simulation was performed at 99 land units in Yeoncheon county to test the potential adaptability of each land unit for growing soybean cultivars. The land units for soybean cultivation(CZU), each represented by a geographically referenced land patch, were selected based on land use, soil characteristics, and minimum arable land area. Monthly climatic normals for daily maximum and minimum temperature, precipitation, number of rain days and solar radiation were extracted for each CZU from digital climate models(DCM). The DCM grid cells falling within a same CZU were aggregated to make spatially explicit climatic normals relevant to the CZU. A daily weather dataset for 30 years was randomly generated from the monthly climatic normals of each CZU. Growth and development parameters of CROPGRO-soybean model suitable for 2 domestic soybean cultivars were derived from long-term field observations. Three foreign cultivars with well established parameters were also added to this study, representing maturity groups 3, 4, and 5. Each treatment was simulated with the randomly generated 30 years' daily weather data(from planting to physiological maturity) for 99 land units in Yeoncheon to simulate the growth and yield responses to the inter-annual climate variation. The same model was run with input data from the Crop Experiment Station in Suwon to obtain a 30 year normal performance of each cultivar, which was used as a "reference" for evaluation. Results were analyzed with respect to spatial and temporal variation in yield and maturity, and used to evaluate the suitability of each land unit for growing a specific cultivar. A computer program(MAPSOY) was written to help utilize the results in a decision-making procedure for agrotechnology transfer. transfer.

Design Development of Cultural Tourism Products Applying DTP of Jeju Gotjawal - Focusing on Jeju Souvenir Shirts - (제주 곶자왈 사진을 디지털 프린팅 활용한 문화관광상품 디자인 개발 - 제주관광셔츠를 중심으로 -)

  • An, Hyunjoo
    • Journal of the Korea Fashion and Costume Design Association
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    • v.17 no.4
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    • pp.145-160
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    • 2015
  • The purpose of this study is to develop cultural tourism products of Jeju Free International City, utilizing the images of its blessed natural environment listed on the UNESCO World (Natural) Heritage Site. To do this, the concept of cultural tourism products is defined, and the current situation and features of Jeju cultural tourism products are closely researched and examined, and then through survey study, responded by Jeju residents and tourists, purchasing behaviors, consumer preferences of Jeju tourists, and improvement plans for tourism products are examined in detail. According to the survey, the important elements for cultural tourism products of Jeju are extracted and employed in the development of tourism T-shirts, and the developing process of souvenir shirt designs using the unique images of Jeju are presented. Five textile pattern designs, based on the nature images of Jeju 'gotjawal' forests, are created and employed in 5 souvenir shirt designs, and this led to the development of 10 styles of tourism souvenir shirts. With their trendy design embodying unique images of Jeju, practicality, and functionality, these shirts are not just for tourists visiting Jeju but also for everybody, any age, and anywhere. The suitability and validity of the designs as the cultural tourism products representing Jeju are evaluated by consumer preference survey. Through this study, the infinite possibility of developing cultural tourism products utilizing unique natural environments of Jeju are confirmed. Development of tourism souvenir shirts reflecting the current fashion trends and tourists' tastes can be led to the construction of positive images of Jeju, the success in attracting tourists, and, eventually, market extension for cultural tourism products.

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3D Terrain Analysis and Suitability Analysis Using KOMPSAT 2 Satellite Images (아리랑2호 영상을 이용한 3차원지형 분석 및 적지분석)

  • Han, seung-hee;Lee, jin-duk
    • Proceedings of the Korea Contents Association Conference
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    • 2008.05a
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    • pp.436-440
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    • 2008
  • Complete consideration on condition and surrounding environment shall be performed to select proper location for complex planning or establishment of facility with special purpose. Especially, in case of living space for human, lighting, ventilation, efficiency in land use, etc. are important elements. Diverse 3D analysis through 3D topography modeling and virtual simulation is necessary for this. Now, it can be processed with relatively inexpensive cost since high resolution satellite image essential in topography modeling is provided with domestic technology through Arirang No. 2 satellite (KOMPSAT2). In this study, several candidate sites is selected for complex planning with special purpose and analysis on proper location was performed using the 3D topography modeling and land information. For this, land analysis, land price calculation, slope analysis and aspect analysis have been carried out. As a result of arranging the evaluation index for each candidate site and attempting the quantitative evaluation, proper location could be selected efficiently and reasonably.

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A Study on the Impact of CO2 Immersion Test for Rubber Sealing Materials (고무 씰링 재료에 대한 CO2 침지 영향에 관한 고찰)

  • Seo, Doo-Hyoun;Jang, Kap-Man;Lee, Jin-Han;Rhie, Kwang-Won
    • Journal of the Korean Institute of Gas
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    • v.18 no.5
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    • pp.26-32
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    • 2014
  • CCS(Carbon Capture and Storage) which is technic to capture and storage the carbon-dioxide is the method that reduces the carbon-dioxide from the industries to prevent earth from the global warming. In order to apply to the practical site, it is inevitable to investigate the possibility of damage in the pipe or components by carbon-dioxide. In this paper, the immersion test is performed to estimate the suitability of the rubber which is used to seal or connect the pipelines because the rubber has not been validated. Also, the immersion test is carried out in a certain condition(pre- and supercritical state).

Effective Use of Water Resource Through Conjunctive Use - (1) The Methodology (지표수-지하수를 연계한 수자원이 효율적 이용 - (1) 방법론)

  • Lee, Sang-Il;Kim, Byeong-Chan;Kim, Su-Min
    • Journal of Korea Water Resources Association
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    • v.37 no.10
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    • pp.789-798
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    • 2004
  • Conjunctive use of surface and ground water is emerging as an alternative to resolve water shortage problems caused by drought or overpopulation. The region whose water supply depends on a single source has high risk of emergency situations, and may need to consider conjunctive use to overcome its weakness. Conjunctive use also can be a realistic and effective solution when additional or new water resources are to be developed. This paper presents a new methodology for managing surface and ground water resources with the aim of supplying water in a sustainable way. The developed method encompasses procedures to assess site suitability for conjunctive use, to devise water supply scenarios based on drought analysis, and to quantify the amount of water attained. It is believed that the systematic and objective features of the developed method enable it to be a useful supportive tool for water management planning and decision-making.