• Title/Summary/Keyword: Actual data

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A mathematical model to recover missing monitoring data of foundation pit

  • Liu, Jiangang;Zhou, Dongdong;Liu, Kewen
    • Geomechanics and Engineering
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    • v.9 no.3
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    • pp.275-286
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    • 2015
  • A new method is presented to recover missing deformation data of lateral walls of foundation pit when the monitoring is interrupted; the method is called Dynamic Mathematical Model - Parameter Interpolation. The deformation of lateral walls of foundation pit is mainly affected by the type of supporting structure and the situation of constraints, therefore, this paper mainly studies the two different kinds of variation law of deep horizontal displacement when the lateral walls are constrained or not, proposes two dynamic curve models of normal distribution type and logarithmic type, deals with model parameters by interpolating and obtains the parameters of missing data, then missing monitoring data could be Figured out by these parameters. Compared with the result from the common average method which is used to recover missing data, in the upper 2/3 of the inclinometer tube, the result by using this method is closer to the actual monitoring data, in the lower 1/3 part of the inclinometer tube, the result from the common average method is closer to the actual monitoring data.

Construction of Farmlands Spatial Information for Reasonable Adjustment of Farmland Use (합리적인 농지이용조정을 위한 농지공간정보구축)

  • Chung, Hoi-Hoon;Na, Sang-Il;Lee, Sang-Hyun;Choi, Jin-Yong
    • Journal of Korean Society of Rural Planning
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    • v.15 no.4
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    • pp.213-220
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    • 2009
  • Farmland spatial data are needed as a basic information in conducting rational use of farmlands in regional scale. This study develops a method that can be used to make up such farmland spatial data in a simple way and to develop a technique to manage them in a unitary way, and examines the effectiveness of the technique by applying it to the case area. A method that Web-Service Raster Image and Digital Cadastal Map can be utilized as a base map was devised. It was designed applying the vector system, in which one lot of farmland is area unit. Raster image and field survey data were combined to increase the accuracy of data. The lot boundaries of the existing boundary map were adjusted to the shapes of actual farmlands using GIS edition function. A proper farmland use classification system to the area characteristics was established and data obtained from the field survey were coded. Usually it is very difficult to identify the size of one lot of actual farmland in the existing space data, based on the results of the case study, the result map showed actual topography very realistically. Also the frequently occurring lot divisions and the serious topographical modifications by natural disasters frequently have made it impossible to survey farmlands on the catastral map in the field. But the final map had a great usefulness in that it may solve such problems by expressing the filed survey results graphically.

A Study on Actual Conditions and Sizing Systems of Domestic Glove Production Companies (국내 장갑 제조업체의 실태조사 및 치수체계에 관한 연구)

  • Choi Hei-Sun;Kim Eun-Kyong
    • Journal of the Korean Society of Costume
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    • v.55 no.2 s.92
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    • pp.116-128
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    • 2005
  • The aim of this study is to understand problems with both fit and sizing system of gloves by analyzing the glove production industries with an emphasis on the sizing system, production measurement system, and general marking situation. Also, to suggest the basic raw materials for improving sizing system for gloves, actual glove control sizes were compared to the anthropometric data of the previous study Fifteen domestic production companies were participated in this study-Domestic glove production companies established their own sizing system by copying inter-national brand's glove sizing system or by their experience. The Korean Standard of gloves and the 1997 Korean Standard Anthropometrics Measurement for producing glove patterns are not considered because of its discordance with the reality of the required measurements. Domestic glove production companies used different size designation and labeling system. Size measurement unit also showed difference among the glove production companies. Some companies used 'cm', some used 'mm', some used 'inch' for the measurement unit. In general, companies produced 5 to 4 sizes in one design of glove and the production was the highest in M and L size. In 9 out of 15 companies preferred control size as hand length and hand circumference. For reference size, most of the companies preferred finger circumference, finger length, palm length, hand breadth, crotch height, and hand thickness. Actual glove sizes were compared to the anthropometric data of the previous study. The results indicated that most of the measurements of actual glove sizes were significantly larger than the anthropometric data.

Operational Reliability Analysis of Guided Weapon Systems (유도무기 시스템의 운용 신뢰도 분석)

  • Ha, Ju Seok;Kim, Kyung Mo
    • Convergence Security Journal
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    • v.17 no.3
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    • pp.95-101
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    • 2017
  • Reliability is the priority matter in guided weapon systems. The reliability prediction data is used during the devel opment stage as the manufacturing cost is very high and the production quantity if quite limited. At the same time it takes relatively a long period of time to acquire a reliable operation data set after deployment such that in order t o determine the operational reliability, weapons must be tested and analyzed in real operating environments. For the research, the life distributions were estimated by using actual operation data and the reliability was calculated by ap plying the method of least squares and maximum likelihood estimation. Also, the comparisons were made between pr edicted reliability and actual operational reliability. As a result, the actual reliability of each system was higher than predicted reliability and it was considered that such a difference was caused by the fact that the application of the l atest designing technology and improved parts to the guided weapon systems was not reflected on the estimation of predicted reliability. It was possible to confirm the actual operational reliability of domestic (ROK) guided weapon sy stems through this research and the methods used here will contribute to the reliability analyses for the future guide d weapon systems to be developed.

Study on equity of taxation for non-residential property by analysis of actual transaction price (실거래가격 분석을 통한 비주거용 부동산의 과세형평성 연구)

  • Kim, Hyoung June
    • Journal of the Korean Data and Information Science Society
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    • v.27 no.3
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    • pp.639-651
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    • 2016
  • "Law on price announcement for real estate" which was revised as of Jan. 19, 2016 (will be enforced as of Sep. 1, 2016) decided the introduction of 'Price announcement system for non-residential property' for the first time. However, its introduction seems to be delayed based on two reasons. Firstly the methodology for introduction of non-property system is not definitized, despite many problems were brought up for current tax base of non-residential property. In addition, changes in tax base will place a burden on the government. In this regard, this study analyzed actual transaction price data throughout one year to analyze equity of taxation for non-residential property and to find major factor which affects on the tax base, in relation with the change of current public announcement system to actual transaction based system. And this is the first study that applied actual transaction price to non-residential property.

High-Fidelity Ship Airwake CFD Simulation Method Using Actual Large Ship Measurement and Wind Tunnel Test Results (대형 비행갑판을 갖는 함정과 풍동시험 결과를 활용한 고신뢰도 함정 Airwake 예측)

  • Jindeog Chung;Taehwan Cho;Sunghoon Lee;Jaehoon Choi;Hakmin Lee
    • Journal of the Society of Naval Architects of Korea
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    • v.60 no.2
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    • pp.135-145
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    • 2023
  • Developing high-fidelity Computational Fluid Dynamics (CFD) simulation methods used to evaluate the airwake characteristics along a flight deck of a large ship, the various kind of data such as actual ship measurement and wind tunnel results are required to verify the accuracy of CFD simulation. Inflow velocity profile at the bow, local unsteady flow field data around the flight deck, and highly reliable wind tunnel data which were measured after reviewing Atmospheric Boundary Layer (ABL) simulation and Reynolds Number effects were also used to determine the key parameters such as turbulence model, time resolution and accuracy, grid resolution and type, inflow condition, domain size, simulation length, and so on in STAR CCM+. Velocity ratio and turbulent intensity difference between Full-scale CFD and actual ship measurement at the measurement points show less than 2% and 1.7% respectively. And differences in velocity ratio and turbulence intensity between wind tunnel test and small-scale CFD are both less than 2.2%. Based upon this fact, the selected parameters in CFD simulation are highly reliable for a specific wind condition.

Applicability of Wind-Vegetation Model in Small Scale Sand Dunes (소규모 사구 지역 바람-식생모델 적용성 분석)

  • Choi, Seok Keun;Choi, Jae Wan;Park, Sang Wook;Jung, Sung Heuk;Lee, Soung Ki
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.35 no.6
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    • pp.545-552
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    • 2017
  • Aeolian dunes are typical sand dunes which are maintained and developed by interactions of earth surface, wind and vegetation. Developing a model which can predict the changing phenomena of these sand dunes is vital in enhancing the efficiency of understanding and management of terrains such as land degradation. In the existing models, however, there is lack of studies on the long - term behaviors of the sand dunes and application to actual topography. Therefore, this study applied the wind-vegetation model considering vegetation to the actual topography and analyzed the applicability of the wind-vegetation model by analyzing the long-term behaviors and comparing them with actual data. Through analysis, study found out that use of wind-vegetation model and data from unmanned aerial vehicle is effective in analyzing the changes of actual dune topography. Except for the boundary, the error of about 1m was generated compared with the change of the actual dune topography.

A Study on the Korean Modern Girl Fashion Style: Focused on Actual People and Film Heroine (한국 모던 걸의 패션 스타일 연구: 실존 인물과 영화 주인공을 중심으로)

  • Yang, Junghee;Park, Hyewon
    • Journal of Fashion Business
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    • v.19 no.2
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    • pp.118-135
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    • 2015
  • This study probed into the fashion of modern girls between the 1920's and the 1930's who led the mentality and fashion of women as the progenitor of the alpha girl in Korea. For this, the fashion of actual people who received attention as modern girls in various occupations and that of modern girl heroines reinterpreted in films were examined. Methods included the theoretical study based on fashion related newspaper articles at the time, specialized publications, advance researches, and internet data and the empirical study that involved contents analysis centering on visual data. The Western women's fashion between the 1920's-1930's was dominated by the garçonne look to promote women's entry into society and competition against men and the practical and mature long and slim look due to the influence of economic recess. Korean people also adapted Western clothes following Western fashion while also modified the traditional clothes and wore modified Korean clothes. The fashion of 5 actual modern girls of Korea and that of 3 film heroines were examined. The fashion of actual people most well represented the fashion trends at the time and that they used fashion as the means to express their mentality and their artistic propensity and professionalism were expressed through fashion. On the other hand, the fashion of film heroines substantially expressed various occupations of the characters in the film and reflected trendy clothes and cosmetics, and it showed sexy and romantic fashion trend due to the influence of modern trends and reinterpretations.

A study of descriptive forms of catalogue and searching method for dissertations (학위논문의 목록기술형식 및 검색방법 고찰)

  • 조호일
    • Journal of Korean Library and Information Science Society
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    • v.12
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    • pp.133-160
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    • 1985
  • In college or university libraries, the data of dissertations is one of the important academic information data. But traditional cataloging rules of dissertations and the method of operation is not only didn't unify but also fit to actual circumstances of library. This reason make librarians waste of time and the situation about piling up of unprocessed data don't make library services properly. In this papers, to analyze the above mentioned problems, I have investigated with questionaries about actual examples of construction methods of call number and item describing form of dissertations which is being used now in every college library in Korea. With the replied 61 questionaries which was compared with and investigated to merits and faults about library itself, I have showed revision ways. The characteristics of the revision ways are the followings. 1) Deleted informal and unmeaning descriptions and simplified describing. 2) Recommended to operating one or two kinds describing items which are only necessary. 3) Made call number specifically and then it make us easy to identify data and simultaneously call number can do its original action. 4) shelving range of data is made to colleges, years, departments, majors but in same departments, author's name is recommended by Korean alphabetical ordering. Besides, for proper and systematic management and operating of data. It must be necessary to recommend that reading systems of closed shelves type, incoming and outgoing and shelving by fulltime exclusive charged librarian, separate management of items and data are recommended.

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The Entry Modes Strategy in FDI: Expansion of Korean Retailers into China and Indonesia

  • Kang, Min-Jeong;Kim, So-Hyung
    • Journal of Distribution Science
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    • v.12 no.7
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    • pp.45-51
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    • 2014
  • Purpose - This study aims to explore the success of Lotte Mart in the global market, as well as examining the factors related to its entry methods. Research design, data, and methodology - This study analyzed the differences between Lotte Mart and E-mart in terms of their market entry methods, based on references and secondary data. This study is based on qualitative research that analyzes actual cases. Based on the results, this study analyzed and discussed actual cases based on references and secondary data, including newspaper interviews on Lotte Mart. Results - Lotte Mart succeeded in adapting to local markets it did this by ensuring the use of both mergers and acquisitions (M&As) and greenfield methods. In contrast, E-mart utilized only greenfield methods. Conclusions - The findings of this study may not be generalized to all industries, as only Lotte Mart was examined using the case analysis method. Therefore, the successful market entry modes of various companies should be explored in terms of FDI.