• Title/Summary/Keyword: site application

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Application of Photogrammetry Method to Measurement of Ground-Surface Displacement on the Slope (사면의 지표변위계측을 위한 사진측량기법의 적용)

  • Han, Jung-Geun;Bae, Sang-Ho;Oh, Da-Young
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.4 no.3
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    • pp.10-18
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    • 2001
  • The existing measurement system to ground-surface displacement survey of the slope has been including the hazard for the measure in site and the difficulty for install, maintenance and control of expensive instruments, which are impossible of whole survey on the slope surface. To overcome of those defects, Softcopy Photogrammertry method is used, which can measure displacement of ground-surface on the slope and structure deformation vectors. Recently, the survey methods applying the advantages of Photogrammetry and Digital Photogrammetry Survey are widely used. In this study, therefore, the development and application of the new instrument mechanism on the the site example are studied. Through the application of Softcopy Photogrammetry, the 3-D data of ground surface on the dangerous slope could be effectively obtained at the long distance, which are obtained through the reform process of contour line. Those are different to the results of the Close-Range Photogrammetry analysis. In ground instrumentation parts, the new practical system shall be the technical base to improve of the instrument machine as well as can be widely applied in civil engineering and others branch.

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Study on the Development of Slope Survey Program for the Real-time Database (실시간 데이터베이스 구축을 위한 사면조사 프로그램 개발에 관한 연구)

  • Lee, Jong-Hyun;Choi, Ji-Yong;Koo, Ho-Bon
    • Proceedings of the Korean Geotechical Society Conference
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    • 2010.09a
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    • pp.1282-1288
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    • 2010
  • In this study, Site Investigation Program of cut slope is developed using related techniques and experience got from practical application of Inventory Survey Program of cut slope in work for last 4 years. The Site Investigation Program is designed to can be loaded to the Mobile PC for convenience of carrying in filed, convenience of data input and revision, application of diverse programs, convenience of confirming data and facility of establishment of real-time database system using wireless communication like Inventory Survey Program. Also, for connection with Inventory Survey Program, it has a same work process and can establish real-time database system of almost data obtained in filed using stability analysis tool loaded in this program. Application of this developed program is expected to be an opportunity that can contribute to development of slope investigation and database system area using IT techniques.

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On­site Survey on Use as Feed of Broiler Litter in Israel and North America and Its Technology Application (이스라엘과 북미 지역의 육계분 사료화 현장 방문 조사 및 기술 정보의 응용)

  • 곽완섭
    • Journal of Animal Environmental Science
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    • v.9 no.2
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    • pp.131-142
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    • 2003
  • This on­site survey was performed by visiting sites in Israel and USA where broiler litter is studied, manufactured as feed and applied practically and interviewing experts related. Their advanced experiences, technologies and informations were collected, analyzed, compared with Korean situations and described on the text of this article. Although broiler litter has been successfully used as feed for at least 40 years in Israel and USA, its practice and application rate of the technologies related has been very slow in Korea. Many informations presented here will be very helpful for the successful on­site application of hygienically processed broiler litter as livestock feed. It's doubtless that these efforts to use broiler litter­like underutilized feed resource will result in considerable livestock production cost cut­down and environmental pollution prevention.

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A Method for Security Strengthening of Web Application using AOP (AOP를 이용한 웹 애플리케이션의 보안성 강화 방안)

  • Sun, Soo-Rim;Lee, Keum-Suck
    • Journal of the Korea Society of Computer and Information
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    • v.14 no.2
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    • pp.119-128
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    • 2009
  • As use of web applications and web-based information systems increases, so web application attacks are increasing. Recently, XSRF(Gross Site Request Forgery) attacks among a variety of web attacks become important because victim's damage caused by such attacks can be severe. But adding security functions for preventing XSRF attacks to existing developed and running software systems could affect move dangerous and expensive to companies and organizations. We suggest effectively adding these security functions to legacy systems, could separate concerns using advantage of the modularity offered by AOP(Aspect-Oriented Programming) methodology. In this paper, we have presented approach for detecting and preventing XSRF in JEE systems using aspect of AOP.

A Study on the Case of Application of a Process at the Construction Stage of the Color Planning at the Construction Site of Muju Taekwondo Park (무주 태권도원 현장 색채계획 시공단계 프로세스 적용사례연구)

  • Yun, Gye-Yeong
    • Korean Institute of Interior Design Journal
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    • v.22 no.5
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    • pp.320-327
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    • 2013
  • In order to maintain and protect professionalism in color planning, the present study examined the process at the time of realization of color through color inspection and supervision in the actual construction site and suggested plans for improvement. Reflecting the characteristics that the governing body of the construction site is not a private person but an organization, the present study aims to provide institutional measures so that the supervisor of color construction at the actual site of construction can propose concerns related to proper construction at the right time, and the matters cannot be decided from the perspective of a layman. The institutional measures are proposed through the case of application of a process at the construction stage of the color planning at the construction site of Muju Taekwondo Park. First, the process clarified where the responsibility lies by specifying special conditions concerning color inspection on the field guide and color contract. Second, the sample for building materials was selected after obtaining it from a company capable of supply and is appropriate for the planned unit cost so that it could play an important role in realizing colors at the stage of basic design. Third, the process of construction was ensured not by temporary selection of colors but by continuous approval of colors in consideration of the conditions of construction site through letter of approval of color at each stage and point of time. Fourth, coordination of various color elements of other fields including landscape, interior, and electricity ensured construction of the whole structure in one color concept. Fifth, color inspection through the mock up of the site will minimize erroneous construction and reconstruction and prevent decrease in productivity. Sixth, this study also suggested more comfortable and positive color environment through evaluation by experts and users. The researcher of this study expects that color experts actively participate in the stage of construction to contribute to improvement of the color environment.

Site Amplification Factors in Southern Korea Determined from Coda Waves (코다파를 이용한 남한지역의 부지증폭 계수)

  • 김동일;박창업
    • Proceedings of the Earthquake Engineering Society of Korea Conference
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    • 2002.03a
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    • pp.51-58
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    • 2002
  • The relative site amplification factors in southern Korea were determined from coda waves using coda normalization method. The seismograms of 15 events at 79 stations were used in this study. Seismogram envelopes were obtained by the Hilbert transform of bandpass-filtered velocity seismograms with frequency bands at 1-2Hz, 2-4Hz, 4-8Hz, 8-l6Hz and 16-32Hz. The envelopes were stabilized by application of moving-average scheme with time window of 1 second. The relative amplitudes of seismogram envelope were computed by dividing the amplitude of seismogram envelope at one site by the amplitude of seismogram envelope at reference site. The relative site amplification factors were obtained by taking averages of the relative amplitude. Values of relative site amplification factors in southern Korea are generally low in western area and high in eastern area.

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Back-scattering Characteristic Analysis for SAR Calibration Site (SAR 검보정 Site 구축을 위한 후방 산란 특성 분석)

  • Lee, Taeseung;Yang, Dochul
    • Korean Journal of Remote Sensing
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    • v.37 no.2
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    • pp.305-319
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    • 2021
  • The overseas calibration sites such as Mongolia used for Korea Multi-purpose Satellite (KOMPSAT-5 or K5), have a disadvantage in that maintenance and repair costs are high and immediate response is difficult when an unexpected problem occurs. Accordingly, the necessity of establishing a domestic SAR calibration site was suggested, but the progress of related research is insignificant. In this paper, we investigated what conditions should be satisfied in terms of backscattering characteristics to construct a site for SAR satellite image quality evaluation and calibration. First of all, it was selected first by applying general indicators such as accessibility and availability among places recommended as satellite image calibration candidate sitesin Korea. Next, three places, site A (Goheung-gun, Jeollanam-do), site B (Jeonju-si, Jeollabuk-do), and site C (Daedeok Research Complex, Daejeon), were selected as the final candidates because they are relatively wide and easy to install AT or CR. Site A, located in Goheung-gun, Jeollanam-do, was best considered in terms of slope measurements, minimum site area to obtain ISLR, uniformity of DN values and backscatter coefficients, interference by strong reflectors, and backscatter clutter level.

Development and Embodiment of Automatic Location Tracing Service for Rescue Requester

  • Kim, Sun-Hyo;Kim, Jung-Hun;Kim, Hee-Sun;Yoon, Sung-wook
    • Journal of Multimedia Information System
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    • v.8 no.1
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    • pp.11-16
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    • 2021
  • This study developed a design to estimate the location of rescue demander using the sound system at disaster site, in the conditions of indoor positioning cannot be performed properly. It is a location tracing system through smart phone application. It generates sound wave information of rescuer at the rescue site, and it can be used as assistant means for indoor location tracing at the disaster site using sound wave receiving measurement technology.

Studies on the Dermal and Ocular Irritation of Prodigiosin Isolated from Zooshikella rubidus

  • Kim, Yong-Sook;Choi, Jong-Myoung;Yoon, Jung-Hoon;Choi, Myung-Jin;Reza, Md. Ahsanur;Park, Seung-Chun
    • Toxicological Research
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    • v.25 no.4
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    • pp.237-242
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    • 2009
  • This study was carried out to investigate the irritation of the prodigiosin isolated from Zooshikella rubidus on the skin and eyes in New Zealand white rabbits. The tests were performed on the basis of Korea Food and Drug Administration (KFDA) guidelines. Prodigiosin induced severe eye irritation at high concentration (0.5 g/site/ml) but there was no eye irritation at low concentration (0.3 mg/sitel ml). The primary irritation index was calculated from higher concentration (0.5 g/site/ml) to lower concentration (0.3 mg/site/ml). There were found non-irritation or induced mild irritation at lower concentration of prodigiosin application. On the basis of this study, it could be concluded that the prodigiosin may be non-irritant to mild irritant of usual application at lower concentration (0.3 mg/site) resulting it is safe and useful in dyeing technology of fabrics.

A Modeling and Optimal Site of SMES for Power System Stabilization (계통안정화를 위한 SMES의 모델링과 적정위치 선정)

  • Kim, Jeong-Hun;Im, Jae-Yun;Lee, Jong-Pil
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.48 no.5
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    • pp.494-501
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    • 1999
  • In this research, ANN modeling method of SMES unit is developed for stability analysis, and the optimal site is selected to maximize stabilization effect of SMES unit. The ANN is trained by learning data which is obtained through the application of complex test function into the traditional mathematical mode. In order to verify the validity of proposed modeling method, fault data of sample power system is applied to both the traditional and the ANN models. When the response of traditional and proposed models are compared, the average error for the active and reactive power are 2.51[%], and 0.24[%], respectively. From the comparison, the relevance of proposed method is validated. For the transient stability analysis, an application method of the proposed model is presented, and the transient stability performance index, which describes system stabilization effect of SMES at disturbance, is also suggested, and optimal site selection method of SMES is presented. In the viewpoint of the voltage stability, system stabilization criterion of local bus is presented from P­V curve, and then optimal site which can maximize the voltage stabilization of the whole power system, is decided from the proposed voltage stability performance index.

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