• Journal of applied mathematics & informatics
• /
• v.18 no.1_2
• /
• pp.573-583
• /
• 2005

In this paper, all near-rings R are left near-rings and all representations of R are (right) R-groups. We start with a study of AR, almost AR and AGR rings which are motivated by the works on the Sullivan's Problem [10] and its properties. Next, for any R-group G, we introduce a notion of R-groups with M R-property and investigate their properties and some characterizations of these R-groups. Finally, for the faithful M R-property, we get a commutativity of near-rings and rings.

• Bulletin of the Korean Mathematical Society
• /
• v.43 no.4
• /
• pp.813-820
• /
• 2006

We consider a MAR model with ARCH type conditional heteroscedasticity. MAR-ARCH model can be derived as a smoothed version of the double threshold AR-ARCH model by adding a random error to the threshold parameters. Easy to check sufficient conditions for strict stationarity, ${\beta}-mixing$ property and existence of moments of the model are given via Markovian representation technique.

• Communications of the Korean Mathematical Society
• /
• v.13 no.3
• /
• pp.461-464
• /
• 1998

We generalize the Artin-Rees Theorem about the AR-property and study linking diagram in the set of prime ideals of the coordinate ring of quantum affine space.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
• /
• 2008.04a
• /
• pp.67-68
• /
• 2008

A simple bi-layer structure of organic light emitting diode (OLED) was used to study the characteristics of anode preparation. Indium tin oxide (ITO) anode surface treatment of OLEDs was performed to get the optimum condition for the ITO anode. The ITO surface was treated by $O_2$ or $O_2$ / Ar mixed gas plasma with different processing time. The electrical characteristics of OLED were improved by plasma treatment. The operating voltage of OLED with $O_2$ or $O_2$/Ar mixed gas plasma treated anodes decreases from 8.2 to 3.4 V and 3.2V, respectively. The $O_2$ /Ar mixed gas plasma treatment results in better electrical property.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2018.10a
• /
• pp.418-420
• /
• 2018

가상증강현실은 장비와 소프트웨어의 기술 발전에 힘입어 산업적인 비즈니스 모델들이 날로 증가하고 있으며 교육, 엔터테인먼트, 관광, 안전, 의료, 국방 등 모든 분야에서 적용에 관한 요구가 급증하고 있는 실정이다. 특히 가상증강현실의 장점인 높은 몰입도와 체감도에 대한 만족도가 요소로 여러 분야의 다양한 VR/AR 콘텐츠가 개발되고 있다. 그러나 아직 지식재산 관점에서의 침해 또는 보호에 대한 정책이 제대로 마련되어 있지 않은 상태다. 본 연구에서는 VR/AR콘텐츠에 대해서 지식재산 관점에서 침해에 대한 법률적 해석과 게임콘텐츠 저작권 보호와 같은 제도가 마련되어야 한다는 필요성에 대해 고찰하고 그 대안을 모색해 보고자 한다.

• Journal of the Korean institute of surface engineering
• /
• v.29 no.5
• /
• pp.424-429
• /
• 1996

Thin films of Ti-Ni alloy were formed by sputtering under various Ar gas pressures and r. f. powers to investigate the optimum sputtering conditions and to demonstrate their shape memory effect. The composition and structure of the films were examined by electron micro-probe analysis and scanning electron microscope. These films were annealed in order to crystallize them. The mechanical property of the annealed films was evaluated by a conventional bending test. The transformation tmeperatures were determined by differential scanning calorimetry. The shape memory behaviour was examined quantiatatively by changing in sample temperature under various constant loads. It was found that the Ar gas pressure had a critical effect on the mechanical property of the thin film,s although the r.f. power also affected it. The films formed at a high Ar gas pressure were too brittle to be bent successfully. However, the films formed at a low Ar gas pressur could be bent and their shape memory behavior was found to be comparable with that of bulk Ti-Ni alloys.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2005.07a
• /
• pp.378-380
• /
• 2005

Diamond like carbon (DLC) films are known that they show homogeneous alignment property when they are irradiated by Ar ion beam. The DLC films in most of studies were deposited by CVD and contain large mount of hydrogen. In order to identity the hydrogen effect on alignment property, DLC films is deposited by RF magnetron sputter using various ratio of Ar and H2 as reactive gas. DLC films are characterized by FT-IR, Raman and contact angle. Alignment property is estimated by measuring pretilt angle.

• Journal of Industrial Convergence
• /
• v.17 no.4
• /
• pp.15-20
• /
• 2019

Augmented reality is used in various fields such as culture, education, military, medical. This is a method of recognizing information of an augmented object on the camera. Exhibitions and educational contents for children are already produced in various ways. This research showed the developed contents deliver cultural property information using augmented reality. 'Galgibi AR' and 'Jang Young-sil's Invention AR' allow you to experience cultural assets up close. 'Galgibi AR' is the experience content in the form of 3D blocks. It makes to understand the structure of the zeolite, Galgibi. 'Jang Young-sil's Invention AR' make you to watch out four objects in detail by zooming in, zooming out and rotating. It can also take pictures with the inventions. Both contents implement what we want to deliver accurately through simple content. They increase the enjoyment of cultural heritage through experience contents. This research addressed to help the cultural property information spread to the public by using Augmented Reality.

• Journal of the Korean Institute of Telematics and Electronics A
• /
• v.30A no.12
• /
• pp.69-76
• /
• 1993

The statistical methodology using RSM (response surface method) was used too ptimize the deposition conditions of selective CVD tungsten process for improving the deposition rate and the adhesion property. Temperature, flow rate of SiH$_4$ and WF$_6$ and H$_2$ and Ar carrier gases were chosen for the deposition variables and process characteristics due to carrier gas were intensively investigated. It was observed that temperature was the main factor influencingthe deposition rate in the case of H$_2$ carrier gas while the reactant ratio, $SiH_{4}/WF_{6}$, had the principal effect on the deposition rate in the case of Ar carrier gas. The increased deposition rate and the good adhesion to Si were obtained under Ar carrier gas compared to H$_2$ carrier gas. The optimum conditions for deposition rate and antipeeling property were found to be the temperature range of 300~32$0^{\circ}C$ and the reactant ratio, $SiH_{4}/WF_{6}$, of 0.5~0.6.

• Journal of Korea Game Society
• /
• v.16 no.5
• /
• pp.159-168
• /
• 2016

$Pok{\acute{e}}mon$ Go is an augmented reality (AR) game developed jointly by Niantic and Nintendo. It's a new type of augmented reality role-playing game (RPG) where AR elements like location information, visual recognition technology and GPS navigation technology are integrated with the intellectual property of the popular $Pok{\acute{e}}mon$ anime. The global success of $Pok{\acute{e}}mon$ Go can be attributed to the innovative incorporation of AR technologies into the game but also to the utilization of the Pokemon story which had been developed for 20 years. In summary, Pokemon Go is the fruitful result of a successful storytelling that combines the humanistic imagination of a popular, cultural archetype and the engineering imagination of AR game technologies.