• Proceedings of the Korean Society of Near Infrared Spectroscopy Conference
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• 2001.06a
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• pp.1133-1133
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• 2001

Fruit sweetness, as indexed by total soluble solids (TSS), and fruit acidity are key factors in the description of the fruit eating quality. Our group has been using short wave NIR spectroscopy (SW-NIR; 700-1100 nm) in combination with chemometric methods (PLS and MLR) for the non-invasive determination of the fruit eating quality (1,2). In order to further improve calibration performance, we have investigated SW-NIR spectra of sucrose and D-glucose. In previous reports on the band assignment for these sugars in the 1100-2500 nm spectral region (3-7), it has been established that change in concentration, temperature and physical state of sugars reflects on the shape and position of the spectral bands in the whole NIR region(5-7). The effect of change in concentration and temperature of individual sugar solutions and sugar spiked Juice samples was analysed using combined spectroscopic (derivative, difference, 2D spectroscopy) and linear regression chemometric (PLS, MLR) techniques. The results have been compared with the spectral data of a range of fruit types, varying in TSS content and temperature. In the 800-950 nm spectral region, the B-coefficients for apples, peaches and nectarines resemble those generated in a calibration of pure sucrose in water (Fig. 1). As expected, these fruits exhibit better calibration and prediction results than those in which the B-coefficients were poorly related to those for sugar.(Figure omitted).

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.5
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• pp.3407-3411
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• 2015

In the process of extending the UML model for a various domain, comply with the UML metamodel and it is possible to obtain a number of advantages. However, the UML metamodel is necessary to redefine the diagram must be defined via the Profile in order to expand and transformation the UML metamodel from a variety of sources using the UML metamodel is becoming increase massive scale. it is necessary to use only those extracts the element relative to the target to be used to extend a UML metamodel. Used to re-define the extension of the UML Metamodel and Profile based UML modeling tools and metadata repositories by analysis tools, can develop more quickly and easily, by utilizing these tools can improve the quality of development in the SW industry. In this paper, we present an algorithm that of the profile through the expansion of the UML metamodel and shows the results in actually applying e-government standards framework.

• Journal of Applied Reliability
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• v.7 no.4
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• pp.137-148
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• 2007

Rapid increase of embedded systems in electronic and mechanical control systems requires reliable and error-free embedded software. State-based testing methods like FSM are usually used to assure the reliability of embedded software. However, because of possibility of explosion of test cases, only partial test cases are considered in practical tests, which cannot guarantee that all the possible errors are investigated. This study proposes a test procedure based on failure mechanisms that may occur in embedded systems, which can not only assure that certain kinds of possible errors are detected but reduce the testing time. The proposed procedure is applied to vehicle air control system.

• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.802-805
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• 2009

SOA는 특정 기술이나 플랫폼에 종속되지 않고 느슨한 결합(Loosely Coupled)을 가지고 상호 연동할 수 있는 서비스들의 조합으로 어플리케이션 개발을 가능하게 하는 정보시스템 아키텍처이다. 즉, 한덩어리의 방대한 코드로 이루어진 어플리케이션들을 각각 개발하는 대신 각각의 비즈니스 기능을 수행하는 서비스를 구성하고, 이 서비스를 조합하거나 분리함으로써 비즈니스 프로세스들을 구현할 수 있게 하는 정보시스템 구축을 목표로 한다. 본 연구에서는 SOA기반 소프트웨어의 분야의 기반 기술을 조사하고 SOA기반 소프트웨어 시장과 표준화 동향을 조사하며 SOA기반 소프트웨어 기능성의 품질평가 메트릭을 개발하였다.

• Proceedings of the KAIS Fall Conference
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• 2011.05a
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• pp.204-206
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• 2011

SOA는 특정 기술이나 플랫폼에 종속되지 않고 느슨한 결합(Loosely Coupled)을 가지고 상호 연동할 수 있는 서비스들의 조합으로 어플리케이션 개발을 가능하게 하는 정보시스템 아키텍처이다. 즉, 한 덩어리의 방대한 코드로 이루어진 어플리케이션들을 각각 개발하는 대신 각각의 비즈니스 기능을 수행하는 서비스를 구성하고, 이 서비스를 조합하거나 분리함으로써 비즈니스 프로세스들을 구현할 수 있게 하는 정보시스템 구축을 목표로 한다. 본 연구에서는 SOA기반 소프트웨어의 분야의 기반 기술을 조사하고 SOA기반 소프트웨어 장점 및 SOA기반 소프트웨어 효율성의 품질평가 메트릭을 개발하였다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.12 no.12
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• pp.5669-5684
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• 2018

The new mobile edge network architecture has been required for an increasing amount of traffic, quality requirements, advanced driver assistance system for autonomous driving and new cloud computing demands on highway. This article proposes a hierarchical cloud computing architecture to enhance performance by using adaptive data load distribution for buses that play the role of edge computing server. A vehicular dynamic cloud is based on wireless architecture including Wireless Local Area Network and Long Term Evolution Advanced communication is used for data transmission between moving buses and cars. The main advantages of the proposed architecture include both a reduction of data loading for top layer cloud server and effective data distribution on traffic jam highway where moving vehicles require video on demand (VOD) services from server. Through the description of real environment based on NS-2 network simulation, we conducted experiments to validate the proposed new architecture. Moreover, we show the feasibility and effectiveness for the connected car media service on highway.

• Korean Journal of Environmental Agriculture
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• v.21 no.3
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• pp.165-171
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• 2002

A study was conducted to investigate the seasonal changes in water quality of watershed in the Agricultural Environment Promotion Zone. Samples collected were 12 GW (ground water), 2 IW (irrigation water), 2 SW (stream water) in An-Dong City, 4 GW, 6 IW, 11 SW in Young-Yang Gun, and sampling was conducted separately during dry and rainy season. In the ground water, EC and ionic species, except pH, were higher than those in stream water, and especially $NO_3-N$ concentration exceeded the limitation of drinking water. Concentration of ions decreased as the sampling depth was far from the soil surface. During a rainy season, the concentrations of $NO_3-N$ and K in the stream water were slightly higher than those during season. COD was lower during dry season in Yong-Yang, while the trend was contrasted to An-Dong. These results suggest that ground water was polluted by fertilization and compost while streamwater was polluted by loss of soil and organic during the rainy season. Principal chemical components related with changing water quality were EC, $NO_3^-$, Ca, Mg, Na, $Cl^-$, $Cl^-$, $SO_4^-$ in ground water, whereas $NH_4-N$, K, Mg, $Cl^-$, $SO_4^-$ in stream water.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.50 no.6
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• pp.419-427
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• 2005

For the purpose to verify the physico­chemical properties of Korean waxy wheat, comparative analyses between waxy wheat lines and their respective maternal parents were performed on mixing and pasting properties, and flour particle sizes. The particle sizes of waxy wheat flour were significantly larger than those of their parents when milled in a same condition. Although the protein contents of flour in waxy wheat lines tested were high as much as those of bread wheat, the quality parameters showed lower baking uses based on sedimentation volumes and mixing characteristics. Waxy flour required more water than non-waxy flour to obtain the proper mixogram. Waxy wheat flour showed more or less higher onset pasting temperatures and much higher breakdown viscosities than their respective parent flour in the Rapid Viscograph test. Moreover, peak viscosity temperatures and final viscosities were dramatically reduced in waxy wheat lines by showing $79.4 - 81.7^{\circ}C$ and 101 ­116.9 RVU, respectively, compared to their parents in that the temperatures above $95^{\circ}C$ and the viscosity ranges of 148 -171.8 RVU.

• Journal of the Korea Society of Computer and Information
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• v.22 no.2
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• pp.81-87
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• 2017

Nowadays wine is increasingly enjoyed by a wider range of consumers, and wine certification and quality assessment are key elements in supporting the wine industry to develop new technologies for both wine making and selling processes. There have been many attempts to construct a more methodical approach to the assessment of wines, but most of them rely on objective decision rather than subjective judgement. In this paper, we propose a data mining approach to predict human wine taste preferences that is based on easily available analytical tests at the certification step. We used sequential forward selection and decision tree for this purpose. Experiments with the wine quality dataset from the UC Irvine Machine Learning Repository demonstrate the accuracies of 76.7% and 78.7% for red and white wines respectively.

• 한국IT서비스학회:학술대회논문집
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• 2009.05a
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• pp.531-534
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• 2009

현대 무기체계의 복잡성과 고가성은 무기체계 개발에 SW컴포넌트인 공통서비스를 도입시켰고, 실례로 미육군에서는 미래전투체계 개발에 공통서비스를 도입하여 개발 중에 있다. 최근 한국군도 무기체계 개발에 공통서비스 도입의 필요성이 제기되고 있다. 따라서 본 논문에서는 무기체계 공통서비스에 대한 선행연구로서 참조모델(RM) 간의 관계 분석과 구현 참조모델(IRM)의 진화에 따른 공통서비스 변화과정을 분석한다. 그리고 서비스 대상의 특성에 따라 3개의 서비스에디션으로 진화된 구현 참조모델의 진화과정과 진화로 인한 영향을 분석한다. 이를 통해 한국군 무기체계 공통서비스를 도출하는데 있어 기술적인 기여를 할 것으로 기대한다.