• Food Science and Preservation
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• v.16 no.1
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• pp.1-7
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• 2009

Watermelons (Citrulus vulgaris Schrad) are usually sorted manually by weight, appearance, and acoustic impulse, so grading of maturity and internal quality is subject to inaccuracies. It was necessary to develop a nondestructive evaluation technique of internal watermelon quality to reduce human error. Thus, acoustic characteristics related to internal quality factors were analyzed. Among these factors, three (ripeness, presence of an internal cavity, and blood-colored flesh) were selected for evaluation. The number of peaks and the sum of peak amplitudes for watermelons with blood-colored flesh were lower than for normal fruits. The portable evaluation system has an impact mechanism, a microphone sensor, a signal processing board, an LCD panel, and a battery. A performance test was conducted in the field. The internal quality evaluation model showed 87% prediction accuracy. Validation was conducted on 72 samples. The accuracy of quality evaluation was 83%. The quality of samples was evaluated by an inspector using conventional methods (hitting the watermelon and listening to the sounds), and then compared with prototype results. The quality evaluation accuracy of the prototype was better than that of the inspector. This nondestructive quality evaluation system could be useful in the field, warehouse, and supermarket

• Journal of the Korea Society of Computer and Information
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• v.13 no.6
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• pp.301-314
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• 2008

The purpose of this study is to examine the effect of information service quality on user satisfaction and individual performance in Outbound Callcenter. A survey was conducted and data were collected from 330 respondents of 1 company which adopted CMS. Validity and reliability of the research instrument were tested and research hypotheses were examined using PLS Graph 3.0. As a result of data analysis, 6 out of 8 hypotheses were supported. User satisfaction is significantly influenced by information quality factors such as accuracy, currency, and relevancy. 2) Also, User satisfaction is significantly affected by internal service quality factors such as training support and reward system. 3) Individual performance is significantly influenced by user satisfaction. Implications of these findings are discussed for researchers and practitioners.

• Journal of Korea Society of Industrial Information Systems
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• v.28 no.6
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• pp.107-113
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• 2023

In the field of ammunition, storage performance is recognized as important, and the moisture-proof performance of packaging containers is very important. In the ammunition field, paper cans with a multi-layered structure are mainly used as packaging containers. It is made by layering materials that play various roles. These packaging containers are mainly evaluated for moisture-proof performance according to the Korean Industrial Standard KS T 1314. The moisture permeability is determined through linear regression analysis of the change in weight of the moisture absorbent added inside. In this study, the effect of the amount of desiccant added on the moisture permeability test results of packaging containers was confirmed. It is considered appropriate that the amount of desiccant used in testing ammunition packaging containers be approximately 70% or more of the internal volume.

• Proceedings of the Safety Management and Science Conference
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• 2011.04a
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• pp.519-527
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• 2011

온실가스 에너지 목표관리 등의 운영 지침 제 54조(품질관리 및 품질보증)에 따라 관리업체는 온실가스 배출량 등의 산정에 대한 정확도 향상을 위해 활동자료 수집, 배출량 산정, 불확도 관리, 정보 보관 및 배출량 보고에 대한 품질관리 활동을 수행하고, 자료의 품질을 지속적으로 개선하는 체제를 갖추는 등 배출량 산정 보고의 정확성과 객관성을 향상시키기 위한 QC/QA 활동을 수행하여야 한다. 본 연구에서는 관리업체가 산정 보고 원칙을 실천함으로써 신뢰할 수 있는 보고서를 작성할 수 있도록 지원하기 위하여 경영진의 검토 및 내부감사, 정보기술(IT) 및 기업 보고를 책임지는 조직 내의 기능을 효율적으로 수행할 수 있는 QC/QA 활동 체계를 구축 하고자 한다. 따라서 체계적인 활동을 할 수 있는 품질시스템을 제시하고 이에 대한 실행방안을 제시하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2020.11a
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• pp.729-732
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• 2020

앞으로 4 차 산업혁명 시대에 많은 인공지능 관련 소프트웨어 및 데이터 기반 소프트웨어가 개발이 필수적이다. 문제는 이런 소프트웨어 관련 품질을 고려하지 않고 있다. 또한 많은 Python 관련 공개 소프트웨어에 대해 품질 보장이 불가능하다. 이를 위해, 코드 가시화 메커니즘, 인공지능 관련 코드 품질을 높이기 위해 AI 관련 Python 코드 복잡도 기반 고품질화 및 코드 가시화 메커니즘을 제안한다. 또한 기존의 복잡도를 측정하는 품질 메트릭스 중 하나인 McCabe's Cyclomatic 복잡도의 개선을 제안한다. 기존의 복잡도 공식에 응집도, 결합도를 가중치로 적용하여 개선된 복잡도를 계산한다. 소프트웨어의 내부 구조 및 관계와 복잡도 정보를 가시화하여 소프트웨어의 품질 향상에 기여한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2008.11a
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• pp.445-448
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• 2008

모바일 기기의 급속한 발전과 고성능 콘텐츠 보급으로 모바일 소프트웨어 시장이 발전하고 있다. 유선에서 무선 인터넷으로 무선 인터넷에서 모바일 인터넷으로 환경이 바뀌면서 모바일 소프트웨어의 중요성이 날로 증대되고 있는 실정이다. 이에 따라 모바일 소프트웨어 품질의 질적 향상과 지속적인 평가를 위하여 모바일 소프트웨어 특성을 축출 분석하고 ISO/IEC 9126을 기반으로 품질모델을 제시하였다. 모바일 소프트웨어가 가지고 있는 복합적인 요소들을 평가하기 위한 5가지 외부 특성과 이에 따른 15가지 내부 속성으로 구성된 품질 모델을 다면적 의사결정기법의 하나인 AHP(Analytic Hierarchy Process)기법을 이용하여 관련요소의 주관적인 특성을 객관적으로 평가하였으며 이러한 품질모델은 고품질의 모바일소프트웨어를 개발하고 평가 하는데 기여할 것으로 기대된다.

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.7 no.1
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• pp.75-81
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• 1998

We have studied internal quality including chemical compositions, microscopic structure and nonmetallic inclusion of test materials. We have analyzed tensile strength value, hardness value, impact value etc. In analyzing internal quality, all of the test materials showed typical ferrite+pearlite structure. But nonmetallic inclusion showed oxide and sulfide inclusions in medium carbon steels, and sulfide inclusion is S-free cutting steels. In ca+ S-free cutting steels, the calcium aluminate and sulfide complex inclusion had low-melting points as deformation of sulfide and oxide inclusion is existed. It was found that tensile strength and hardness give maximum value in medium carbon steels, where as minimum in Ca + -free cutting steels. But values of elongation, reduction of area impact are reverse. Fracture surface of impact specimen is ductile in free cutting steels but brittle in medium cabon steels.

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.9 no.1
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• pp.24-29
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• 2000

This paper is experimental study of machining characteristics about martensitic heat resisting steel STR11. Machining characteristics are different according to internal quality(chemical compositions, microscopic structure and nonmetallic inclusion) mechanical properties(tensile strength value impact value and hardness) and dynamic cutting force. Following are the results : 1. In analyzing internal quality test materials have typical martensite structure and a minute needle-shaped structure. 2. Tensile strength and reduction of area and hardness are larger. But values of elongation and impact values are smaller. Fracture surface of tensile specimen is ductile. 3, Cutting force is decreasing with cutting speed increasing 4. Cutting force is increasing with feed speed increasing.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1996.04a
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• pp.97-101
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• 1996

In this paper, We have studied internal quality incluiding chemical compositions, microscopic structrue and nonmetalic inclusion of test materials. We have analyzed dynamic characteristics of cutting resistence including tensile strength value, hardeness value, impact value etcs. We have compared chip treatments of test materials. In analyzing internal quality, all of test materials have typical ferrite+pearlite structure. But, nonmetallic inclusion have oxide and sulfide inclusion in medium carbon steels, mainly sulfide inclusion is existed in S-free cutting steels. In Ca+S-free cutting steels, calcium aluminate and sulfide complex inclusion, had low-melting points, as deformation of sulfide and oxide inclusion is existed. machining characteristics, cutting resistence is maximum in Ca+S-free cutting steels, minimum in medium carbon steels. Chip treatements are excellent in S-free cutting steels, similar to the Ca+S free cutting steels and medium carbon steels.

• Proceedings of the Korea Information Processing Society Conference
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• 2019.10a
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• pp.704-707
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• 2019

오늘날 객체지향 코드 내부 복잡도가 지속적으로 증가하는 데에 반해 IT 벤처/중소기업에서는 요구사항 및 설계문서 미비의 코드 개발과 테스트 중심의 경우가 빈번하다. 이는 시스템의 코드를 이해하고 수정, 유지보수를 하는데 많은 시간과 비용이 투자되고 있다. 본 연구는 객체지향 코드의 내부 구조 시각화를 위해 Tool-Chain방법을 이용한 정적 분석기 구축 및 가시화를 제안 한다. 이를 통해, 역공학 도구, 테스트 프로세스 등을 도입이 어려운 중소기업의 소프트웨어 품질 향상에 도움을 줄 수 있을 것으로 기대된다.