• Title/Summary/Keyword: large company

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STATUS OF GOCI DATA PROCESSING SYSTEM(GDPS) DEVELOPMENT

  • Han, Hee-Jeong;Ahn, Yu-Hwan;Ryu, Joo-Hyung
    • Proceedings of the KSRS Conference
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    • 2007.10a
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    • pp.159-161
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    • 2007
  • Geostationary Ocean Color Imager (GOCI), the world-first ocean remote sensing instrument on geostationary Communication, Ocean, Meteorological Satellite (COMS), will be able to take a picture of a large region several times a day (almost with every one hour interval). We, KORDI, are in charge for developing the GOCI data processing system (GDPS) which is the basic software for processing the data from GOCI. The GDPS will be based on windows operating system to produce the GOCI level 2 data products (useful for oceanographic environmental analysis) automatically in real-time mode. Also, the GDPS will be a user-interactive program by well-organized graphical user interfaces for data processing and visualization. Its products will be the chlorophyll concentration, amount of total suspended sediments (TSS), colored dissolved organic matters (CDOM) and red tide from water leaving radiance or remote sensing reflectance. In addition, the GDPS will be able to produce daily products such as water current vector, primary productivity, water quality categorization, vegetation index, using individual observation data composed from several subscenes provided by GOCI for each slit within the target area. The resulting GOCI level 2 data will be disseminated through LRIT using satellite dissemination system and through online request and download systems. This software is carefully designed and implemented, and will be tested by sub-contractual company until the end of this year. It will need to be updated in effect with respect to new/improved algorithms and the calibration/validation activities.

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An empirical study of evaluating the Korean firm's technological knowledge assets (한국 기업의 기술지식자산 평가에 대한 실증연구)

  • 윤찬병;하형철;박용태
    • Proceedings of the Technology Innovation Conference
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    • 1999.06a
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    • pp.85-97
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    • 1999
  • Being the new paradigm of "knowledge based economy", knowledge asset get to be the key to evaluate the firm's value. For a instance, Scandia firstly informed the intellectual capital report with its own financial statements in 1994. Some financial institutions have emphasized the roles of knowledge assets in the evaluating firm's value, too. But the concept of knowledge asset is so extensively defined that the result of evaluation is not as much reliable as financial statements. As previous studies examined the firm-specific cases, the sectoral pattern of knowledge asset has been ignored and it cause the difficulty in the empirical study. Moreover, the objectivity of study is ambiguous. Therefore, we regards knowledge asset as a technological knowledge asset. Which is related to R&D(research & development) and technology. Because this definition is more measurable than others and can play a frontier role in evaluating the knowledge asset. We extract the criteria related to the technological knowledge asset through the survey of 'Scandia' and other previous studies and add other criteria, which explain the Korean-specific environments. We gather data from "Technological Innovation"(STEPI, 1997, 1999) and "The bibliography of Korean R&D institutes"(KITA,1998) and "the survey of listed company"(Daewoo Securities, 1998. 1999). As the results of empirical study, the variables which explain the financial value of firms do not reflect the 'technological knowledge asset' well. It results from the factors as followings. Firstly, instead of stock price the proxy measurement related to 'knowledge asset' is needed. Secondly, the sample is biased to the large scale firms so we'll collect samples more broadly. Finally, the concept of 'technological knowledge asset' is too narrow to explain the value of firm. We expect the result of this empirical study gives contribution to the evaluation of firms' value more exactly.

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Methodology of Springback Prediction of Automotive Parts Applied 3rd Generation AHSS Using the Progressive Meta Model (프로그레시브 메타모델을 이용한 3세대 초고장력강판 적용 차체 부품의 스프링백 예측 방법론)

  • Yoon, J.I.;Oh, K.H.;Lee, S.R.;Yoo, J.H.;Kim, T.J.
    • Transactions of Materials Processing
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    • v.29 no.5
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    • pp.241-250
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    • 2020
  • In this study, the methodology of the springback prediction of automotive parts applied 3rd generation AHSS was investigated using the response surface model analysis based on a regression model, and the meta model analysis based on a Kriging model. To design the learning data set for constructing the springback prediction models, and the experimental design was conducted at three levels for each processing variable using the definitive screening designs method. The hat-shaped member, which is the basic shape of the member parts, was selected and the springback values were measured for each processing type and processing variable using the finite element analysis. When the nonlinearity of the variables is small during the hat-shaped member forming, the response surface model and the meta model can provide the same processing parameter. However, the accuracy of the springback prediction of the meta model is better than the response surface model. Even in the case of the simple shape parts forming, the springback prediction accuracy of the meta model is better than that of the response surface model, when more variables are considered and the nonlinearity effect of the variables is large. The efficient global optimization algorithm-based Kriging is appropriate in resolving the high computational complexity optimization problems such as developing automotive parts.

Computer Desks Design for More Workspace Enlargement - Especially on the Case Study of Their Typical Development - (작업공간 활용증대를 위한 컴퓨터 데스크 디자인 연구 -유형별 개발사례를 중심으로 -)

  • 박규현
    • Archives of design research
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    • v.14 no.3
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    • pp.27-36
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    • 2001
  • Minor enterprises can successfully build up their market share plans in a relatively shorter time than compared with major enterprises, which require long time for design developments in their big organization. Therefore, there are some items that are more suitable to the minor enterprises. For example, computer desk may be the one. It must be one of the strategically suitable items of minor enterprises rather than of large enterprises because of their own easy production policies. This paper is based on a research report that I submitted to Gyongsan-Si, Gyongbuk-Do which supported a small company for a special purpose of its provincial economic policy. I took part in the research and suggested five types of characteristic concepts and the ideas. And as a result. the type war accepted as the most appropriate one of them to produce. And the acception was based on the following five factors; consumer's need, productivity, proper price, energy saving, and user' easiness.

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Effect of Polar Components on Phase Inversion Temperatures in Systems Containing Nonionic Surfactants and Nonpolar Oils (비이온성 계면활성제, 비극성 오일을 포함한 계에서의 극성 성분의 Phase Inversion Temperature에 대한 영향)

  • Lim, Jong-Choo;Mori, Fuyuhiko
    • Applied Chemistry for Engineering
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    • v.5 no.2
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    • pp.274-284
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    • 1994
  • Phase Inversion Temperature (PIT) measurements showed that the addition of polar components such as oleyl alcohol and oleic acid to the system comprising n-dodecylpentaoxyethylene monoether ($C_{12}E_5$), nonpolar oil (n-hexadecane) and water produced large reductions in the PIT. The PIT was lowered as the additive-to-surfactant ratio in the surfactant films in the microemulsion phase was increased. Another dramatic effect of additive was the manner in which it affects the volume of the microemulsion phase at the PIT of the oil and water solubilization characteristics. Microemulsion phase volume was increased rapidly with decreasing PIT, i.e., with increasing amounts of additive in the system. Also with a decrease in PIT, the solubilization parameters of both oil and water in the microemulsion phase were strikingly increased. Even though soil removal data were not available for the conditions where our results obtained, PIT measurement seems a useful starting point for estimating conditions when middle-phase microemulsion formation and its associated high solubilization of oil can be expected.

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The Korea Academia-industrial cooperation Society (상용 트럭의 공압 브레이크 응답 특성에 관한 연구)

  • Kim, Jin-Taek;Jung, Do-Gyun;Choi, Pan-Jin;Park, Won-Ki;Park, Chan-Hee;Ryuh, Beom-Sahng;Baek, Byung-Joon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.5
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    • pp.1969-1975
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    • 2012
  • The air brake system used in heavy vehicle is very important from the point of safety due to its weight. In general, air brake system generates relatively long response time and large loss of pressure. It is known that the response time can be decreased by optimal design of brake system, i.e., by increasing the system pressure, minimizing the air line, and material of components. In this study, We developed experimental rigs for the measurement of braking response of heavy duty trucks and compared with the simulated results obtained from the net work fluid flow system analysis code (FLOWMASTER). The effect of several parameters such as, system pressure, diameter of pipe, chamber temperature on the brake response performance have been examined.

A Study on the Optimum Design of Warm-up rate in a Air-Heated Heater System by Using CFD Analysis and Taguchi Method (전산유체해석과 다구찌 방법을 연계한 공기 가열식 히터 시스템의 난방속효성 최적화에 관한 연구)

  • Kim, Min-Ho
    • Transactions of the Korean Society of Automotive Engineers
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    • v.13 no.2
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    • pp.72-82
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    • 2005
  • The objective of this paper is to describe the optimization of design parameters in a large-sized commercial bus heater system by using CFD(computational fluid dynamics) analysis and Taguchi method. In order to obtain the best combination of each control factor which results in a desired performance of heater system, the parameter design of the Taguchi method is adopted for the robust design considering the dynamic characteristic. The research activity may be divided into four phases. The first one is analyzing the problem, i.e., ascertaining the influential factors. In the second phase the levels were set in such a way that their variation would significantly influence the response. In the third phase the experimental runs were designed. In the final phase the planned runs were carried out numerically to evaluate the optimal combination of factors which is able to provide the best response. In this study, eight factors were considered for the analysis: one with two level and seven with three level combinations comprising the $L_{18}(2^1{\times}3^7)$ orthogonal array. The results of this study can be summarized as follows ; (i)The optimum condition of control factor is a set of <$A_2\;B_1\;C_3\;D_3\;E_1\;F_2\;G_3\;H_2$> where A is shape of the outer fin, B is pitch of the outer fin, C is height of the outer fin, D is the inner fin number, E is the inner fin height, F is length of the flame guide, G is diameter of the heating element and H is clearance between air guide and heating element. (ii)The heat capacity of heated discharge air under the optimum condition satisfies the equation y=0.6M w here M is a signal factor. (iii)The warm-up rate improves about three times, more largely as com pared with the current condition, which results in about 9.2minutes reduction.

A Study on Convergence of Cyber Security Monitoring and Industrial Security (기밀유출방지를 위한 융합보안 관리 체계)

  • Lee, Chang-Hun;Ha, Ok-Hyun
    • Convergence Security Journal
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    • v.10 no.4
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    • pp.61-67
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    • 2010
  • Information communication the dazzling development life was convenient with to join in and planned an industrial technical advance. Not only the nation with technical security of the enterprise between the description competition keenly in the present point of view which rushes to technical competitive time of the nation between is become accomplished. The damage which is caused by with outflow of industrial secrecy that company prevents this effectively because is threatening at the degree which will threaten the existence of the nation and the technique which manages is become accomplished with the domestic foreign enemy. Prevents an industrial secret outflow the research for on a large scale with physical security technique and information security to be divided, is researched.

A Study on the Profitability According to the Different Sales Timing in Apartment Housing Development Projects (공동주택 개발 사업의 분양시기 변동에 따른 수익성 비교.분석에 관한 연구)

  • Yoon, Seung-Hyeon;Kang, Hyun-Wook;Kim, Yong-Su
    • Korean Journal of Construction Engineering and Management
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    • v.10 no.3
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    • pp.62-71
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    • 2009
  • The purpose of this study is to analyze of profitability accordance to the different sales timing in apartment housing development projects. The adapted research method about public apartment hosing development projects by a private construction company is concentrated on the middle and large scale housing. The methodology for analysis of profitability through the change of timing for sales is analysed. According to this methodology, the difference of profitability by different timing of first sales is compared and analyzed. The results of this study are as followed 1)The major factors to affect the profitability for apartment housing development project consist of the timing of sales, the method of payment and the rate of sales. 2) The case study was carried out and then the profitability is analyzed the profitability for the three of cases is got worse when the sale after construction especially on the time of construction progress rate 80% is carried out.

Considerations of Automatic Passenger Counting System using Infrared Sensors at doorway in Overseas Railway Transit (적외선 센서를 이용한 자동 승객 계수 시스템에 대한 고찰)

  • Kim, Jin-Seok;Gwak, Ho-Seung
    • Proceedings of the KSR Conference
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    • 2009.05a
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    • pp.418-423
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    • 2009
  • Unlike domestic railway transportation system in which majority of station are equipped with gate access controller and ticket office, it has been a very common practice in overseas railway transit or railway station that they use a pressure door mat, infrared-sensors or CCTV cameras so as to automatically determine the number of passenger onboard and alight and to reflect the information to their business (i.e., deployment of vehicles and human resources). The data collected by the automatic passenger counting (APC) system provides methods how to obtain the information about the number of passenger using the vehicles on the basis of date, time and stop(station) which enables large-scaled transit company to create profits through effective vehicle deployment and management of their employees. This paper addresses the basic features of the automatic passenger counting system using infrared sensor and describes those of the extended APC system in conjunction with wireless technologies such as GPS, WLAN or Cellular network.

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