• Title/Summary/Keyword: quality enhancement

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A Method for Quality Evaluation of Firewall (침입차단시스템의 품질평가 방법)

  • Lee, Ha-Yong;Kweon, Won-Il;Yang, Hae-Sool
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.12
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    • pp.5058-5071
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    • 2010
  • International standard is the documents that is constructed based on general and common characteristics of software. Thus, it is necessary to consider the characteristics of product and optimize the evaluation method by using related standard to adapt to some specific knowledge information security products. Also, because rapid development of software field was obliged to change the international standard, the content and construction of standard has changed, it is necessary to construct the evaluation method with this change. In this paper, we developed the evaluation model that can support the quality enhancement by evaluating the quality level and extracting the improvement method of firewall. For this, we surveyed and analyzed the trend and the technical elements of firewall and considering the general quality requirements and unique quality requirements, and proposed the quality evaluation model and method.

The Effect of Power Type within Supply Chain on the Information Capability: Perspective of CSV Value Creation (공급사슬 내의 파워유형이 정보역량에 미치는 영향: CSV 가치창출 관점)

  • Park, Kwang-O;Chang, Hwal-Sik;Jung, Dae-Hyun
    • The Journal of Information Systems
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    • v.27 no.3
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    • pp.1-24
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    • 2018
  • Purpose The purpose of this study is to attempt to incorporate power theory to evaluate information capability of SCM adopters. Therefore, this study focuses on the relationship of information sharing, partnership quality, and information capacity according to the power intensity of the variables of SCM. and CSV value creation. Design/methodology/approach The questionnaire of SCM builder was conducted and 302 samples were analyzed. Based on the theoretical background of power and information capacity, we set up a structural equation model. Hypothesis testing and statistical analysis were done through AMOS and SPSS. Findings First, it shows that the compensation power among the constrained power has a positive effect on the partnership quality, and the legitimacy power has the positive influence only on the information sharing. Compulsive power, compensation, and legitimacy, which are generally restrictive powers, may reduce the quality of information sharing and partnership, but the results of this study are rather higher. Second, both non-binding power expertise and criterion have a positive effect on information sharing and partnership quality. Third, information sharing has a positive effect on partnership quality. Supporting a number of research results, it is well reflected in SCM attributes where interdependence is important. Fourth, information sharing and partnership quality have a positive effect on information capacity. Information literacy has become an essential element in modern management. Fifth, the enhancement of CSV value creation plays a role of a controlling variable to further strengthen information sharing through non - binding power attribute, expertise and conformity. In addition, the strengthening of CSV value creation has been shown to play a role as a controlling variable to further strengthen the quality of partnership through the non-binding power attribution, but expertise has been rejected.

Vulnerability Assessment of Water Quality and Aquatic Ecosystem to Climate Change in Korea using Proxy Variables (대리변수를 이용한 한반도 수질 및 수생태계 부문의 기후변화 취약성 평가)

  • Lee, Keon Haeng;Chung, Eu Gene;Kim, Kyunghyun;Yu, Jeong Ah;Lee, Eun Jeong
    • Journal of Korean Society on Water Environment
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    • v.28 no.3
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    • pp.444-452
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    • 2012
  • This study aims at assessing vulnerability of water quality and aquatic ecosystem to climate change by using proxy variables. Vulnerability to climate change is defined as a function of exposure to climate, sensitivity, and adaptive capacity. Detailed proxy variables were selected considering availability and then standardized by re-scaling concept. After adequate weights were assigned to standardized proxy variables by Delphi technique, vulnerability index was calculated. As results, vulnerability of adjacent regions to coastal areas include water quality and aquatic ecosystem is relatively higher than that of inland areas, and especially adjacent region to the western and southeast seas, and Jeju show high vulnerabilities. Vulnerability in the future was performed based on A1B scenario (IPCC, 2000). Temporally, the increase of vulnerability from 2050s to 2100s may be larger than the increase from 2000s to 2050s. Because vulnerability index was estimated through the relationship among various proxy variables, it is important to consider characteristics of local region with measurements and policies for reduction of sensitivity and enhancement of adaptive capacity on climate change. This study is expected to be useful in planning adaptation measures and selecting priority to the policy on climate change.

A study on the Relationship among Depression, Walking and Quality of Life for the Elderly -Focusing on the Moderation Effects of Walking- (노인의 우울, 걷기, 삶의 질의 관계에 대한 연구 -걷기의 조절효과 중심으로-)

  • Song, Hee-Seung
    • Journal of Digital Convergence
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    • v.14 no.8
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    • pp.515-525
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    • 2016
  • This study examined how walking moderates the influence of depression on quality of life in elderly. Data of the study were analysed using the sixth Korean National Health and Nutrition Examination Survey (KNHANES V-2, 2014). The subjects were elderly aged 65 years or more and the number of the sample was 1,263. Using hierarchial regression analysis, walking as a moderator of the depression and quality of life relationship was examined. Quality of life for elderly showed significant differences according to sex(t=8.26, p<.001), age(t=5.19, p<.001), number of chronic disease(F=37.88, p<.001), depression(t=9.62, p<.001) and walking per week (t=47.36, p<.001). Walking moderated the relationship between depression and quality of life in elderly. Based on these findings, the enhancement of walking in depressed elderly is recommended to promote the quality of life.

A Study on the Records Management Tasks for Obtaining Quality Research and Laboratory (연구 품질 확보를 위한 기록관리 방안 연구)

  • Yim, Jin-Hee
    • Journal of Korean Society of Archives and Records Management
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    • v.11 no.1
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    • pp.183-206
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    • 2011
  • The research and laboratory records management is the prerequisite for quality research. Quality research assurance system can work out on the sound basis of quality research records management. It is an important task that establishing a proper research and laboratory records system for obtaining quality of research according to the rapid growth of Research and Development area in Korea and the trend of electronic laboratory notebooks. The purpose of this study is to identify issues and find a direction for solutions related to the research and laboratory records management systems. For this after analysing previous studies and current status related to the research records management and GLP(Good Laboratory Practice) is benchmarked as a best practice for quality research, some suggestions for enhancement of research records management are given as a result.

A Study on the Audit Quality of Socially Responsible Investment Corporate (사회책임투자 기업의 감사품질 연구)

  • Kim, Jin-Seop
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.6
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    • pp.55-62
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    • 2019
  • We examined the Audit Quality on the Socially Responsible Investment(SRI) Corporate. We used 1,497 sample data from 2014 to 2016. In short, the result of this paper's is as followed. Socially Responsible Investment(SRI) has a positive relevance with Audit Quality. Socially Responsible Investment(SRI) has a positive relevance with Audit Fee, Audit Time and Audit Size specifically. Therefore we can support that a firm has a high level of Socially Responsible Investment(SRI) will have the better the Audit Quality according to this study. This study contributes as follow. We can verify that the more Socially Responsible Investment(SRI) the better Quality of Accounting Information. We expect that this study can be helped positive image enhancement of Socially Responsible Investment(SRI) Corporate. So we hope that our paper can contribute sound capital market's development.

Assessment of Quality Assurance in the Lifting and Assembly Phase of Modular Construction: An Importance-Performance Analysis Approach (중요도-성취도 분석을 이용한 모듈러 건축프로젝트 현장설치 및 양중 단계의 품질 관리방안에 관한 연구)

  • Lee, Jeong-Hoon
    • Journal of the Korea Institute of Building Construction
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    • v.23 no.5
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    • pp.595-605
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    • 2023
  • With the escalating prevalence of modular construction projects, there is a concurrent surge in scholarly and industrial intrigue in this domain, leading to a broadened spectrum of its applications. Modular construction, inherently facilitated by controlled factory settings, boasts the capability to consistently deliver edifices of superior quality. To optimize this advantage, the judicious integration of quality assurance methodologies during the site-specific phases of lifting and assembly is non-negotiable. This research embarked on a survey directed at project stakeholders, aiming to gauge the perceived significance and efficaciousness of prevailing quality preservation and oversight protocols during the aforementioned site stages, subsequently employing the Importance-Performance Analysis(IPA) for data interpretation. The findings elucidated that, while a majority of quality assurance procedures were adeptly executed, perceptual disparities existed among stakeholders regarding certain aspects, prompting recommendations for enhancement. This investigative endeavor lays a foundation, aiding future studies in amplifying the quality assurance cognizance among professionals during modular construction's site-assembly phase.

Design and Implementation of Solar PV for Power Quality Enhancement in Three-Phase Four-Wire Distribution System

  • Guna Sekar, T.;Anita, R.
    • Journal of Electrical Engineering and Technology
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    • v.10 no.1
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    • pp.75-82
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    • 2015
  • This paper presents a new technique for enhancing power quality by reducing harmonics in the neutral conductor. Three-Phase Four-Wire (3P4W) system is commonly used where single and three phase loads are connected to Point of Common Coupling (PCC). Due to unbalance loads, the 3P4W distribution system becomes unbalance and current flows in the neutral conductor. If loads are non-linear, then the harmonic content of current will flow in neutral conductor. The neutral current that may flow towards transformer neutral point is compensated by using a series active filter. In order to reduce the harmonic content, the series active filter is connected in series with the neutral conductor by which neutral and phase current harmonics are reduced significantly. In this paper, solar PV based inverter circuit is proposed for compensating neutral current harmonics. The simulation is carried out in MATLAB/SIMULINK and also an experimental setup is developed to verify the effectiveness of the proposed method.

Post-processing of 3D Video Extension of H.264/AVC for a Quality Enhancement of Synthesized View Sequences

  • Bang, Gun;Hur, Namho;Lee, Seong-Whan
    • ETRI Journal
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    • v.36 no.2
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    • pp.242-252
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    • 2014
  • Since July of 2012, the 3D video extension of H.264/AVC has been under development to support the multi-view video plus depth format. In 3D video applications such as multi-view and free-view point applications, synthesized views are generated using coded texture video and coded depth video. Such synthesized views can be distorted by quantization noise and inaccuracy of 3D wrapping positions, thus it is important to improve their quality where possible. To achieve this, the relationship among the depth video, texture video, and synthesized view is investigated herein. Based on this investigation, an edge noise suppression filtering process to preserve the edges of the depth video and a method based on a total variation approach to maximum a posteriori probability estimates for reducing the quantization noise of the coded texture video. The experiment results show that the proposed methods improve the peak signal-to-noise ratio and visual quality of a synthesized view compared to a synthesized view without post processing methods.

Study on the Use of Orchargrass-Red Clover mixture II. Effect of seed rate of orchargrass-red clover on herbage yield and quality (Orchargrass-Red Clover 혼파이용에 관한 연구 II. Orchargrass-Red Clover 파종비율이 목초의 수량과 품질에 미치는 영향)

  • 이인덕;이형석
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.12 no.4
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    • pp.211-217
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    • 1992
  • This experiment was conducted over a 3-year period (1990-1992) to evaluate the production and quality of orchardgrass (Potomac)-red clover (Kenland) mixture when orchardgrass + red clover mixture was sown at seed rates of 20+0. 18+2, 16+4, 14+6 and 12+8 kg/ha. Total herbage dry matter, crude protein and digestible organic matter production and organic matter intake were markedly affected by increasing rcd clover seed rate, those increased with increasing red clovcr seed rate due to the cnhancernent of red clover percentage of total herbagc in all 3-year. but significant differences occured between the orchardgrass alone and orchardgrass-red clover mixture with a seed rate of 4,6 and 8 kg/ha red clover (P<0.01). But on the other hand increasing red clover seed rate increased red clover percentage in total herbage, the mean red clover percentage of total herbage at the last cutting ranged from 54 to 65% in first year. 58 to 60% in second year, and 62 to 69% in third year, particularly it was observed that red clover was sown at seed rates of 6 and 8 kg/ha for red clover sown dominated strongly as the cutting times were progressed. Considering the maintenance of good botanical composition balance and the enhancement of production and quality of herbage, the optimized seed rate for orchardgrass-red clover mixtures, 16 kg/ha orchardgrass and 4 kg/ha red clover seems to be considered adequate.

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