• Transactions of the KSME C: Technology and Education
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• v.5 no.2
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• pp.89-95
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• 2017

LCD robot vertical frame lets a arm assembly with glass substrate move up and down, so it must have high stiffness and strength. We applied new manufacturing process by using design optimization process such as topology and size optimization in order to satisfy the request of high stiffness and light weight. The proposed model should be evaluated for endurance strength. Therefore fatigue assessment for weak point of aluminum welding area of vertical frame studied with hot spot stress approach. And the actual stress measuring from test was compared and evaluated with the dynamic stress calculated from multi-body dynamics considering flexible body.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.7
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• pp.3123-3129
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• 2011

Deep-frying pork cutlets contains high fat and calories and can cause obesity, even though it has a high preference among young consumers in Korea. In this study, we have investigated the use of oven cooking method and is studying quality characteristics of pork cutlets for the contribute to improving national health. For the replace the deep-frying method, the pork cutlet was using canola oil added brown crumbs and optimization the oven cooking time, temperature, relative humidity, fan speed. The fat content and calories of oven pork cutlet reduced by 55.4% and 28.6% respectively(P<0.05), when compared to frying method. In a color experiment, texture characteristics and separation ration of batter, oven pork cutlet has no difference(P>0.05), in a sensory characteristics, overall taste has no different (P>0.05) with frying pork cutlet. Therefore, if pork cutlet cooking by oven with optimized condition, without impoverishment of consumer's preference because of the taste similarity with frying pork cutlet and these results may be helpful to people who need dietary treatment.

• Journal of Advanced Navigation Technology
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• v.17 no.6
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• pp.757-764
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• 2013

A panoramic video which supports to make viewers feel an immersion through fitting to a wide field of view (FOV) larger than the human visual angle needs an interactive viewing method such as selecting targeted view point among widely viewing points of a panoramic video because it difficult to simultaneously view a whole panoramic video due to a limited viewing environment and bandwidth. When a user officially uses a view navigation in order to select a view point, it happens waste of resources such as bandwidth owing to the transmitted video data of unnecessary view points. Therefore, this paper proposes the spatial-temporal prediction filter (STPF) which is based on the direction and velocity of the view navigation for transmitting only the necessary video data. As a result of simulation, STPF reduces bitrate saving rates by from 6% to 37% compared to conventional methods in the interactive panoramic video streaming service required high bandwidth.

• Journal of KIISE:Computing Practices and Letters
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• v.16 no.1
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• pp.17-22
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• 2010

As deployments of Flash memory are spreading out rapidly from tiny USB storages to large DB servers, interoperability become an indispensable requirement for Flash memory software architecture. For the purpose, many systems make use of the conventional FAT file system and FTL (Flash Translation Layer) software as a de facto standard. However, the tactless combination of the FAT file system and FTL does not satisfy diverse other requirements of a variety of systems. In this paper, we propose a novel reconfigurable integrated Flash memory software architecture, named INFLAWARE (INtegrated FLAsh softWARE) that supports not only interoperability but also reconfigurability and performance enhancement. Real implementation based experimental results have shown that INFLAWARE can achieve improvements of memory footprint up to 27% with an average of 19%, compared with the conventional FAT and FTL combination. Also, by using map_destroy technique, it can reduce response times of various applications up to 21% with an average of 10%.

• Proceedings of the Korea Water Resources Association Conference
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• 2017.05a
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• pp.362-362
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• 2017

최근 기후변화로 인하여 자연재해 발생 빈도가 증가하고 있으며 우리나라의 경우, 자연재해 중에서도 태풍, 호우 등 풍수해의 발생 비율이 높게 나타난다. 최근 곤파스(2010), 무이파(2011), 볼라벤(2012) 등 태풍의 영향으로 많은 인명피해와 1조원 이상의 직접손실이 발생하였다. 이로 인하여 자연재해 예측 및 피해저감을 위한 국가적 차원의 체계적인 방재정책을 수립하고자, 안전관리 기본계획 및 풍수해저감종합계획 등 풍수해 관리를 위한 관련 정책들을 정비하고 있다. 그러나 현행 법률구조상 효율적인 재난관리정책을 뒷받침할 법적 근거가 미흡한 실정이다. 이에 본 연구는 체계적인 풍수해 관리를 위하여 재난관리단계를 예방, 대비, 대응, 복구로 구분하고 관리 현황 분석을 진행하여 풍수해관리 중장기 전략을 제시하였다. 연구방법으로는 풍수해 관련 법령 및 법 제도 체계를 검토하였고, 루사(2002)와 볼라벤의 피해사례 분석을 통해 풍수해 관리 문제점을 파악하였다. 현행 방재정책은 사후복구위주의 중앙정부 중심 체계이며, 피해규모가 대형화되고 복합재난이 발생하는 등 새로운 재해상황을 반영하지 못하고 있는 것으로 분석되었다. 따라서 본 연구에서는 기존 풍수해 관리에 있어 (1)관련법 규정의 미흡, (2)재해정보의 부족 및 정보관리의 미흡, (3)대응체계의 복잡성, (4)방재산업에 대한 전략적 과학적 투자 미흡 등을 문제점으로 도출하였다. 이와 같은 문제점을 개선한 풍수해관리 중장기 전략은 첫째, 법 제도 개선을 통한 풍수해 관리수준 고도화, 둘째, 재해연보 개선을 통한 풍수해정보관리 고도화, 셋째, 풍수해 피해예측시스템을 활용한 계획적이고 체계적인 재난대응체계 구축, 넷째, 풍수해 저감 핵심기술 확보와 국내 방재산업 활성화 체계 구축으로 제시하였다.

• Journal of Convergence for Information Technology
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• v.9 no.10
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• pp.16-27
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• 2019

The purpose of this study was to develop and evaluate the effects of a simulation-based convergence practicum education program among senior nursing students. A repeated measure experimental design was used. A total of 77 senior nursing students were recruited from a university located in G city. Data was collected at baseline, program completion, and 2 month following completion of the practicum. Repeated measure ANOVA was used to evaluate the effects of the program. There were statistically significant improvements between baseline and program completion and between the baseline and 2 month follow-up. However, there was no significant differences between the program completion and 2 month follow-up. The study demonstrated that simulation-based convergence practicum education was an effective strategy to increase study outcomes and reduce clinical practice stress among senior nursing students. Further studies are needed to evaluate the effects of the program using randomized controlled trials.

• The Journal of the Korea Contents Association
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• v.21 no.9
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• pp.34-41
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• 2021

The purpose of this study is to explore any effects of primary English language learners' affective factors and satisfaction through AI-based speaking activity. In order to answer these questions, a total number of 46 ELLs from a public elementary school participated in this research. Survey questionnaire on affective factors and learning satisfaction were distributed and the results were analyzed quantitatively. The findings are as follows. First, participants could expand their knowledge on AI-based activity towards its educational advantages and capability. Second, overall affective factors of the participants on AI-based activity changed positively, with the improvement of the mean score. The paired samples t-test showed that there was a significant difference among interest, value and attitude. Third, the satisfaction degree on AI-based learning escalated, particularly in the sense of efficacy, academic achievement and involvement. Lastly, it was revealed that the satisfaction degree was correlated with learners' self-confidence, interest and attitude.

• Journal of the Korean Institute of Gas
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• v.25 no.3
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• pp.16-26
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• 2021

The global warming problem has arose, the supply eco-friendly vehicles such as HFCEVs is increasing around world and Korea is fully supporting subsidies, tax cut to form an initial market for HFCEVs. The key to the safety of HFCEVs is pressure vessels stored hydrogen, and although these pressure vessels must be inspection regularly, the existing inspection stations are insufficient to meet the demand for inspection. Therefore, it is important to establishment of pressure vessels inspection station for safety management of HFCEVs. In this study, it estimates innovation coefficient, imitation coefficient in Bass model by using electric vehicle sales data, and foretasted the supply of HFCEVs by region & the demand for inspection by region using the Bass diffusion model. As a result, the inspection demand for pressure vessels in HFCEVs in 2040 was 690,759 units, and it was confirmed 191 new inspection stations and 1,124 inspectors were needed to prepare for this.

• Convergence Security Journal
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• v.18 no.2
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• pp.101-111
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• 2018

The autonomous weapon systems are being developed with a global competition due to the 4th industrial revolution technologies such as artificial intelligence. This theses analyzes on the technologies related to the autonomy of the new weapons, the new changes in war fighting regime that will be brought by such autonomous weapons, the level of autonomy in a autonomous weapon system, and also the definition and functions of the autonomy. The advanced artificial intelligence for the civilian commercial sectors would be similar to the required military autonomous systems. The future war fighting regime would be the war with autonomous weapon systems without any human casualties. The level of autonomy in the future weapons would be fully autonomous without any human supervision or involvement in the decision making processes. The functions of the autonomous weapon would be to sense, to decide, and to act with a full autonomy in order to accomplish desired purposes.

• Convergence Security Journal
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• v.17 no.5
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• pp.153-161
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• 2017

The gain a decision by a prediction supposition future combat. Take a future combat by the method fighting of U.S. Army in the Irak war. A make combat progress is from real time information to precision bombing for a guided weapon by GPS, a intelligence satellite, a pilotless scout plane, real time simultaneous and unification combat power are the kernel element of gain a decision fighting power by network in the ground, sky, marine, universe, cyberspace. The NCW is in a sense network center war organic be connected by networking a factor of operation. Any where networking information collection, command and decision, blow system. The Study on the improvement plan for Military combat power by base of NCW abainst the future War. Construct an integrate intelligence network apply to future combat.