• 한국게임학회 논문지
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• 제21권6호
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• pp.125-134
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• 2021

본 연구는 국내 게임 연구가 어떤 방향으로 진행되고 있는지를 파악하기 위해, 언론학, 심리학, 청소년학 분야 학술지에 게재된 게임 관련 논문 총 89편을 분석했다. 언론학(미디어학) 분야 연구들은 게임 이용과 경험, 효과, 중독, 규제, 제작 기술, 공간, 담론, 통치성, 노동 등 다양한 주제로 게임을 탐구하고 있었다. 반면 청소년학과 심리학 분야 연구는 게임 중독과 게임 이용의 부정적 효과에 편중되어 있었다. 연구 방법 측면에서 언론학 분야 연구는 설문조사, 실험연구, 심층인터뷰, 참여관찰, 데이터 크롤링 등을, 청소년학 분야 연구는 설문조사를, 심리학 분야 연구는 설문조사와 실험연구를 주로 활용하고 있었다.

• 산업경영시스템학회지
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• 제23권61호
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• pp.51-58
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• 2000

Discovery of association rules has been used useful in many fields, especially in the fields of the inventory display, catalog design and cross selling. In previous works, all transactions In the database are treated uniformly. In this paper, we present a method for partitioning transactions in the database using time weights. Transactions are assigned different weights as time goes on. Examples show that these method provides purchasing patterns in the database as well as finding association rules.

• 한국시뮬레이션학회논문지
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• 제7권2호
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• pp.17-32
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• 1998

The flow fields in Gas Bubble Driven Circulation Systems were numerically analyzed. In various gas flow rate and bubble size, the flow characteristics were predicted. Eulerian-Eulerian approach was used for the formulation of both the continuous and dispersed phases. The modification of the general purpose computer program PHOENICS code was employed to predict the mean flow fields, turbulent characteristics, gas dispersion, volume fraction. The predicted shows very satisfactory agreement with experimental results for all regions of ladle. The results are of interest in the design and operation of wide variety of material processing.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2013년도 제45회 하계 정기학술대회 초록집
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• pp.92.2-92.2
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• 2013

The design and chemical synthesis of multifunctional nanomaterials have been providing potential applications in biomedical fields such as molecular imaging and drug delivery. Recently, bio-derived and/or synthetic nanostructured materials capable of modulating the immune system have been also issues of interest in immunology-related nanomedicine fields. In this talk, the recent research results on the development of nanostructured materials for enhanced immunity would be presented. I will introduce the chemical strategy for the combination of nanostructured materials and bioactive compounds to improve both anti-cancer immunity and vaccine delivery efficiency.

• Korean Journal of Mathematics
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• 제28권4호
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• pp.943-953
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• 2020

A university grades input system requires for professors to enter the normalized total scores for the letter grades and to input the scores from six fields such as Midterm, Final, Quiz which sum up to the total. All six fields have specified bounds which add up to 100. Professors should scale in the total scores to match up the letter grades and scale in every field of each student's original scores within the bounds to sum up to the scaled total score. We solve this problem by a novel design of simple shallow neural network.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2002년도 춘계학술대회 논문집
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• pp.348-352
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• 2002

a basis such as IT(Information Technology), NT(Nano Technology) and BT(Bio Technology). Recently, NT is applied to various fields that are composed of science, industry, media and semiconductor-micro technology. It has need of IT that is ultra-precision positioning technology with strokes of many hundreds mm and maintenance of nm precision in fields of ultra micro process, ultra precision measurement, photo communication part and photo magnetic memory. This thesis represents optimal design on ultra-precision positioning with single plane X-Y stage and development of artificial control system for adequacy of industrial demand. Also, dynamic simulation on global stage is performed by using ADAMS (Automated Dynamic Analysis of Mechanical System) for the purpose of grasping dynamic characteristic on user designed X-Y global stage. The error between displacements from micro stage and from FEM(Finite Element Method) is 3.53% by verifications of stability on micro stage and control performance. As maximum Von-mises stress on hinge of micro stage is 5.981kg/mm$^2$ that is 1.5% of yield stress, stability on hinge is secured. Preparing previous results, optimal design of micro stage can be possible, and reliance of results with FEM can be secured.

• 사물인터넷융복합논문지
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• 제3권2호
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• pp.1-5
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• 2017

CCTV 기술이 발달하면서 여러 분야에서 사용하고 있다. 현제 CCTV 운영에 대해서 구체적으로 알아보고자 하며 또한 많은 분야에서 CCTV가 생기면서 운영에 대한 문제점이 생기고 있는데 문제점을 해결하기 위해 새로운 시스템을 설계하고자한다. 본 논문에서는 CCTV가 효율적으로 운영될 수 있도록 K-means을 이용하여 데이터 분석을 진행하고 영상기술도 증가시키고 효율적으로 운영이 가능하도록 기존 시스템에 새로운 기술을 및 기능을 추가하여 문제점을 해결하고 더 좋은 기술로 발전하고자 한다. 또한 관제센터에서 효율적으로 CCTV를 운영할 수 있도록 k-means를 이용하여 CCTV 기술에 새로운 시스템을 설계하여 문제점을 해결 효율적 관리를 위해 제안하고자 한다.

• 인터넷정보학회논문지
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• 제2권5호
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• pp.31-39
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• 2001

인터넷 가상 현실을 기반으로 하는 각 분야에서의 활동은 너무도 왕성하다. 교육분야도 예외는 아니어서 원격 강의 형태로 그 활동이 단발적으로 나타나다가 이제 가상 대학의 설립이란 본격적인 단계로 진입했다. 건축 교육도 일부 그 대열에 합류하고 있지만 유독 건축 설계 교육에서는 그렇지 못했다. 물론 그것은 3차원인 공간이 2차원인 웹 상에서 구현되는 것에 제약이 많이 따랐기 때문이다. 그러나, 근자에 인터넷 기술의 발달로 이런 제약이 사라졌다. 따라서, 건축 설계 교육에서도 인터넷을 기반으로 원격 강의를 실현할 수 있게 되었다. 이번 연구는 인터넷 가상 현실의 장점을 활용하여 건축 설계 교육방법을 기존에서 진일보시킬 수 있는 기반이 되는 것을 목적으로 한다.

• 한국멀티미디어학회논문지
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• 제23권2호
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• pp.293-300
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• 2020

Since the communication networks like the Internet collapses at disaster and calamity sites, a maintenance system that can be operated offline is required for the maintenance of various facilities. In this paper, we propose a system that memory tags attached on the facilities may transmit the emergency manual to a smart-phone, and the smart phone displays it off-line. The main issue is to design low energy mode memory tags. This study presents two kinds of methods and analyzes each's energy consumption mode. The first one is to develop memory tags by using one chip, and the next one is to design memory tags by forming multi-modules. Both ways show proper application fields under the low energy mode. This research selects the off-line maintenance system by using one chip design, and proposes the direction of contents for enhancing the effectiveness of the system. And we expect that this memory tags will be valuable for disaster scenes as well as battle fields.

• 한국유체기계학회 논문집
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• 제2권1호
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• pp.96-102
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• 1999

Cross flow fans are used in various applications, especially in industrial ventilation applications and in room air conditioners, due to their superior performance characteristics. Unlike radial and/or axial fans, the design of cross flow fans have been mostly based on earlier experiences and experiments. In the present study, numerical computations of flow fields through a cross flow fan used in room air conditioner are performed to investigate the detailed flow fields and to study the effect of the blade shape on performance curves to aid better design of the fan. Despite some discrepancies between the two results, it is seen from the present study that the computational results agree quite well with the qualitative experimental results. It is also shown from the present study that by having a different shape of blade, it is possible to achieve about $15\%$ increase in flow rates. The stimulating results of the present study can be used in the design of high performance cross flow fans with the use of optimal design algorithm and experimental verifications.