• 한국IT서비스학회지
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• 제7권4호
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• pp.209-219
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• 2008

Recently the number of Internet firms providing useful information like weather forecast data is growing. However most of such information is not prepared in accordance with customers' demand, resulting in relatively low customer satisfaction. To upgrade the service quality, it is recommended to devise a system for customers to get involved in the process of service production, which normally requires a huge investment on supporting computer systems like clusters. In this paper, as a way to cut down the budget for computer systems but to improve the performance, we extend the HPC cluster system to include other Internet servers working independently on the same LAN, to make use of their idle times. We also deal with some issues resulting from the extension, like the security problem and a possible deadlock caused by overload on some non-dedicated nodes. At the end, we apply the technique in the solution of some 2D grid problem.

• Computers and Concrete
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• 제10권1호
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• pp.19-33
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• 2012

The performance of a concrete is significantly influenced by its mixture proportion and the coating thickness on aggregate surface. The concrete in this study is designed by estimating the blending ratio of aggregate using a densified mixture design algorithm (DMDA) based on an ideal grading curve and estimating the paste volume as the sum of the amount of paste needed to provide an assigned coating paste thickness. So as to obtain appropriate concrete amount, and thus can accurately estimate the property of concrete. Deduction of this mix design formula is simple and easy understanding, and meanwhile to obtain result is fast. This estimation model of mix design is expected to reward to industry and effectively upgrade concrete quality.

• 한국항공운항학회지
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• 제31권4호
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• pp.45-55
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• 2023

This paper calls attention to the central problem of the influence of identifying the determinants of airport duty-free store customers perceived innovativeness, pursuit benefits and value-congruency on the behavioral intention. The data is completed with 307 adults with purchasing experience of airport duty-free store O2O integration service which brings sufficient convenience to consumers. The content analysis results show that the influence factors of innovation characteristics, consumer pursuit benefits and value-congruency affect the behavioral intention in various aspects. The result suggests that we should upgrade the innovate functionality and improve the service quality based on consumer needs. Finally, this study discusses implications for theory and practice, indicates limitations, and concludes with some suggestions for future research.

• 한국문헌정보학회지
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• 제48권3호
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• pp.431-458
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• 2014

이 연구는 도서관목록이 이용자 친화적으로 발전하기 위해서는 이용자들의 정보요구에 기반 해야 함을 전제로 두고, 이용자 요구 기반 도서관목록의 모습을 제안하고 실제 구현 가능성을 점검해 보는 것을 목적으로 하고 있다. 이를 위해 이 연구에서는 (1) 이용자들의 정보요구와 정보탐색행태에 대해서 자세히 살펴보고, (2) 이용자 요구 분석의 결과를 토대로 도서관목록을 직접 구현한 뒤, (3) 이용자들의 만족도 평가를 통해 이 연구에서 제안한 도서관목록의 유용성을 도출하였다. 나아가 (4) 연구의 전 과정을 진행하면서 봉착했던 어려움과 한계를 논의하면서 이용자 요구 기반의 도서관목록을 구현하고자 할 때 선행되어야 할 과제에 대해서 논의하였다.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 2014년도 하계학술대회
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• pp.163-165
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• 2014

In this paper, we propose a world's first programmable video processing platform for video quality enhancement of 8K ($7680{\times}4320$) UHD (Ultra High Definition) TV at 60 frames per second. To support huge computation and memory bandwidth of video quality enhancement for 8K resolution, the proposed platform has unique features like symmetric multi-cluster architecture for data partitioning, ring data-path between clusters to support data pipelining, on-the-fly processing architecture to reduce DDR bandwidth, flexible hardware to accelerating common kernel in video enhancement algorithms. In addition to those features, general programmability of SRP (Samsung reconfigurable processor) as main core of the proposed platform makes it possible to upgrade continuously video enhancement algorithm even after the platform is fixed. This ability is very important because algorithms for 8K DTV is under development. The proposed sub-system has been embedded into SoC (System on Chip) and new 8K UHD TV using the programmable SoC is expected at CES2015 for the first time in the world.

• 한국산업융합학회 논문집
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• 제6권4호
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• pp.413-420
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• 2003

We can take 'Profit security', in the field Process improvement activity and man-power upgrade in the learning of organization activity or upgrading ability of each peoples. After Tayler System(Scientific Management in1911) and Ford System(Conveyor system in 1913), Toyota System(Ohno's TPS; Toyota Production System around 1980) which was developed by Toyota in Japan in the third productive revolution. This thesis study on the focus of 2 successful examples(P and S companies in Seong-Seo industrial complex Tae-Gu city) which introduce Toyota system can apply to VM(Visual Management), 3jeong(Right Products Right Quantity, Right Box and Right Position)5S(Seiri, Seiton, Seisoh Seiketsu, Sitsuke), JIT(Just In Time), KAIZEN(Improvement), KANBAN System(Logistic) and output of Factory. For examples P company obtained a lot of results(productivity increase 19%, Quality up 46%-36ppm, storage decrease 25% per year), S company obtained a lot of results(productivity increase 20%, Quality up 40%, storage decrease 33% per year, 2600 improvements in 2002. In conclusion Korean KANBAN system (modified Toyota System) is similar to exchange of work as Korean traditional system in agriculture as like dure 'PUMASHI' SANGBU-SANJO) that's autonomous management systems. In conclusion Korea KANBAN system needs apply to not only all the manufacturing industry but also the various fields of industry.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2004년도 추계학술대회 및 정기총회
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• pp.463-466
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• 2004

This paper suggests the evaluation method of success factors of CRM implementation using AHP technique, and presents why firms implement CRM, how it could be successfully implemented, and what is the most important factor. For the purpose, this study applies the method to department stores' industry. AHP structure consists of three steps to determine CRM's key success factors. First of all, strengthening loyalty of customers, improvement of service quality, upgrade of intelligence system and advancement of management process are selected as superordinate object (i.e. CRM-implementation goal). The next project factor, technology/data factor and organizational factor were decided as success factor of CRM-implementation. Subordinate criteria of project factor consist of 11 criteria. The experimental results of this study show that department stores think advancement of management process and improvement of service quality as most important purposes for CRM implementation. The results also indicate that among the subordinate success factors, accuracy of customer information, conversion to customer-oriented business model, practical use of experienced consultant, and establishing IT infrastructure for CRM are evaluated as most important success factors for CRM implementation.

• 정보처리학회논문지D
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• 제12D권1호
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• pp.91-102
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• 2005

과거 소프트웨어 품질은 곧 제품품질이란 인식이 지배적이었다. 하지만 현대에 소프트웨어가 거대화되고 복잡해짐에 따라 제품품질만을 가지고서는 고객의 요구조건에 맞는 양질의 소프트웨어를 제작하는데 있어 한계가 있었다. 이러한 이유로 현재 국내외 많은 기업들은 프로세스 개선을 통한 제품품질 향상을 위하여 노력을 기울이고 있다. 프로세스 개선활동 중 측정 활동은 프로세스 개선에 대한 효과를 향상시키며, 프로세스 개선 활동을 파악하고, 이를 효과적으로 구현하는데 있어 많은 도움을 줄 수 있다. 본 논문은 현재 국내외 많은 기업들이 프로세스 개선 모델로 채택하고 있는 CMMI를 기반으로 측정 프로그램에 관한 연구를 수행하였다. CMMI의 프로세스 영역 중 측정 프로세스 수립에 대해서 다루고 있는 MA 프로세스 영역을 기반으로 측정 프로그램을 수립하였으며, 이렇게 개발한 측정 프로그램을 통해 CMMI 각 레벨 별로 측정 프로그램이 어떠한 차이를 두고 있으며, 어떻게 측정 프로그램을 작용할 지에 대해 연구하였다. 본 연구를 통해 CMMI 기반의 프로세스 개선을 수행하고 있거나 시작하려는 기업들에게 측정 프로그램 수립 지원할 수 있으며, 더 나아가 레벨 별로 진화하는 측정 프로그램의 로드맵을 제시하고자 한다.

• 디지털융복합연구
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• 제15권5호
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• pp.197-205
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• 2017

웹방화벽이 정보유출방지 등의 웹 보안 기능을 효과적으로 제공하여 웹 애플리케이션 보안이라는 목표를 달성하기 위해서는 웹사이트 보안 강화와 안전한 서비스 제공이라는 목표를 달성할 수 있어야 한다. 따라서 관련된 표준을 근간으로 웹방화벽시스템의 보안성 평가를 체계적으로 수행할 수 있는 연구가 필요하다. 본 논문에서는 웹방화벽시스템의 기반 기술과 웹방화벽의 보안성 품질에 관한 요구사항을 분석하고 소프트웨어 제품평가에 관한 국제표준과 정보보안 관련 제품의 평가에 관련된 표준을 근간으로 보안성 품질을 평가하는 기준을 구축하였다. 본 연구를 통해 웹방화벽시스템의 보안성 품질수준을 확인하고 품질향상을 제고할 수 있는 기준의 확보를 기대할 수 있을 것으로 사료된다. 향후 연구과제로 지속적으로 변화하고 있는 국제표준에 따라 평가기준을 지속적으로 업그레이드할 필요가 있다.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2007년도 학술발표회 논문집
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• pp.8-14
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• 2007

Water quality in Lake Rotorua, New Zealand, deteriorated since the 1960s because of excessive phytoplankton growths due principally to increasing nitrogen and phosphorus in the lake waters. Nutrient concentrations in eight of the nine major streams feeding Lake Rotorua have increased since 1965. The groundwater system has a key role in the hydrology of the Lake Rotorua catchment and the groundwater system is probably the control on the time delay between intensification of agricultural land use and response of surface water quality. All major, and many minor streams, in the catchment are fed by springs. Two lithological units are most important to groundwater flow in the Lake Rotorua catchment: Mamaku Ignimbrite, erupted in about 200,000 years ago and Huka Formation sediments which filled the caldera left by the Mamaku Ignimbrite eruption. Rainfall recharge to groundwater in the groundwater catchment of Lake Rotorua is estimated as approximately 17300 L/s. A calibrated steady-state groundwater flow model estimates that approximately 11100 L/s of this flow discharges into streams and then into the lake and the balance travels directly to Lake Rotorua as groundwater discharge through the lake bed. Land use has impacted on groundwater quality. Median Total Nitrogen (TN) values for shallow groundwater sites are highest for the dairy land use (5.965 mg/L). Median TN values are also relatively high for shallow sites with urban-road and cropping land uses (4.710 and 3.620 mg/L, respectively). Median TN values for all other uses are in the 1.4 to 1.5 mg/L range. Policy development for Lake Rotorua includes defining regional policies on water and land management and setting an action plan for Lake Rotorua restoration. Aims in the action plan include: definition of the current nutrient budget for Lake Rotorua, identification of nutrient reduction targets and identification of actions to achieve targets. Current actions to restore Lake Rotorua water quality include: treatment of Tikitere geothermal nitrogen inputs to Lake Rotorua, upgrade of Rotorua City sewage plant, new sewage reticulation and alum dosing in selected streams to remove phosphorus.