• 한국전자통신학회논문지
• /
• 제9권3호
• /
• pp.343-350
• /
• 2014

객체 인식은 지능적이고 다양화된 범죄 예방을 위해 감시 시스템에서 중요한 기술이다. 사람의 신체 정보인 키는 대상이 가지고 있는 신체적인 특징으로 신원을 확인하는데 중요한 정보가 될 수 있다. 본 논문에서는 RGB-Depth 카메라, 키넥트를 활용한 새로운 키 추정 방법을 제안한다. 사람의 키를 측정하기 위해 키넥트의 높이를 알고 있는 것으로 가정하고, 키넥트에서 머리와 발까지의 거리를 키넥트의 깊이 정보를 이용하여 사람의 키를 추정한다. 실험을 통하여 제안하는 방법이 실내에서 사람의 키를 추정하는데 효과적임을 확인한다.

• 한국전기전자재료학회논문지
• /
• 제28권2호
• /
• pp.126-130
• /
• 2015

In this study, some materials are organized and experimented with variables to obtain the optimum mix proportion for the mechanical property of halogen free flame resistance compound with varying addition of nano clay. Tensile strength, density and stiffness are tested in the room temperature. In this study, unlike existing layered structure, nano clay with tabular structure is used and sufficient stiffness, strength, thermal stability and gas block capability can be achieved with small amount of addition. Tensile strength and elongation test show high rupture strength only in specimens with compatibilizing agents while density test shows average measurement in all the specimens except T-9. It was confirmed that the measurement value according to the additives in compatibilizing agent or in nano clay of hardness test represents similarly.

• 한국전기전자재료학회:학술대회논문집
• /
• 한국전기전자재료학회 2007년도 하계학술대회 논문집 Vol.8
• /
• pp.416-417
• /
• 2007

We prepared flexible transparent conducting electrodes by spray coating of single-walled carbon nanotube (SWNT) networks on PET substrate and have demonstrated their use as transparent anodes for flexible organic light emitting diodes (OLEDs). The flexible CNT electrode produced by spray coating method shows relatively low sheet resistance ($150{\sim}220{\Omega}/sq.$) and high transmittance of ~60% even though it was prepared at room temperature. In addition, CNT electrode/PET sample exhibits little resistance change during 2000 bending cycles, demonstrated good mechanical robustness. Using transparent CNT electrode, it is readily possible to achieve performances comparable to commercial ITO-based OLEDs. This indicates that flexible CNT electrode is alternative anode materials for conventional ITO anode in flexible OLEDs.

• 한국전기전자재료학회:학술대회논문집
• /
• 한국전기전자재료학회 2007년도 추계학술대회 논문집
• /
• pp.412-413
• /
• 2007

We report on the electrical, optical, and structural properties of indium zinc tin oxide (IZTO) anode films grown at room temperature on glass substrate. The IZTO anode films grown by a RF magnetron sputtering were investigated as functions of RF power, working pressure, and process time in pure Ar ambient. To investigate electrical, optical and structural properties of IZTO anode films, 4-point probe, Hall measurement, UV/Vis spectrometer, Field Emission Scanning Electron Microscopy (FE-SEM), and X-ray diffraction (XRD) were performed, respectively. A sheet resistance of $13.88\;{\Omega}/{\square}$, average transmittance above 80 % in visible range were obtained from optimized IZTO anode films grown on glass substrate. These results shown the amorphous structure regardless of RF power and working pressure due to low substrate temperature.

• 한국정보통신학회논문지
• /
• 제19권8호
• /
• pp.1853-1858
• /
• 2015

기존 선박 통신시스템은 위성통신을 이용한 음성, FAX, ISDN 등이 대부분으로 선박 해상관제 업무에 집중되고 있지만, 최근의 레저선박 통신시스템의 경우는 더 높은 품질의 스마트 통신 서비스 및 통신환경을 요구하고 있다. 기존 통신시스템을 활용하여 통신 환경을 실험한 결과, 선상에서는 위성통신이 가능하나, 밀폐된 선내에서는 위성통신을 중계한 음성통신만 가능하고 스마트 앱이나 이메일 사용은 불가하였다. 본 논문에서는 선상뿐 만아니라 선내에서도 음성, 문자, 이메일, 대규모 파일 전송, 해상관제 앱 실행이 가능한 통신시스템 구현을 제안한다. 본 연구를 통해 위성통신단말기와 스마트폰이 결합한 듀얼 복합 통신단말기와 선내에서도 대용량 이메일 및 스마트 앱 사용이 가능한 시스템을 구현하였다. 실험 결과 선박 어느 위치에서나 다양한 통신이 가능하였다.

• 한국실내디자인학회논문집
• /
• 제21호
• /
• pp.69-75
• /
• 1999

The extensive coverage and high speed of communication network, which is a basic structure of the information society, enables the provision of various forms of informatiov. especially, such services as cyber medicine, cyber education, home office, home banking, and home shopping will be common; and, now, no one can deny that the information society starts to be part of our life. Regarding home office, John Navigate predicted home office through the electronic house in New Mecca Trend and Alvin Toffler asserted in The third Wave that people could do their work anywhere including living room in their hoses with the development of communication technology and other related appliances. Such predictions are realized with the development of information communicatiov. Therefore, housing space should be changed according to the realization of home office and the direction of housing plan need to be set for home office.

• 대한전기학회:학술대회논문집
• /
• 대한전기학회 2003년도 하계학술대회 논문집 C
• /
• pp.1538-1540
• /
• 2003

The composites were fabricated respectively 61vol.% ${\beta}$-SiC and 39vol.% $TiB_2$ spray-dried powders with the liquid forming additives of 12wt% $Al_2O_3+Y_2O_3$ by pressureless annealing at $1700^{\circ}C,\;1750^{\circ}C\;1800^{\circ}C$ for 4 hours. The result of phase analysis of composites by XRD revealed ${\alpha}$-SiC(6H), $TiB_2$, and YAG($Al_5Y_3O_{12}$) crystal phase. The relative density, the Young's modulus and fracture toughness showed respectively the highest value of 92.97%, 92.88Gpa and $4.4Mpa{\cdot}m^{1/2}$ for composites by pressureless annealing temperature $1700^{\circ}C$ at room temperature. The electrical resistivity showed the lowest value of $8.09{\times}10^{-3}{\Omega}{\cdot}cm$ for composite by pressureless annealing tempe rature $1700^{\circ}C$ at $25^{\circ}C$. The electrical resistivity of the SiC-$TiB_2$ composites was all positive temperature cofficient resistance (PTCR) in the temperature ranges from $25^{\circ}C$ to $700^{\circ}C$.

• Transactions on Electrical and Electronic Materials
• /
• 제12권3호
• /
• pp.89-92
• /
• 2011

Hydrogenated amorphous carbon (a-C:H) films were deposited by plasma enhanced chemical vapor deposition on silicon substrates. a-C:H thin film was irradiated to a typical He-Cd laser to study its emitting properties. The photoluminescence (PL) intensity during the irradiation achieved a maximum value when 2,000 seconds elapsed. Fourier transform infrared measurement revealed a-C:H thin film suffered transformation from a polymer-like to graphite-like phase during laser irradiation. Thermal annealing was done at various temperatures, ranging from room temperature to $400^{\circ}C$ in the atmosphere, to investigate structural changes in a-C:H film by heat generation during the emission. PL intensity of a-C:H thin film increased 1.5 times without apparent structural change, as annealing temperature increased up to $200^{\circ}C$. However, a-C:H film above $200^{\circ}C$ exhibited significant decrease of PL accompanying dehydrogenation. This led to a red shift of the PL peak.

• Journal of Information Display
• /
• 제4권1호
• /
• pp.29-33
• /
• 2003

We have investigated the effects of hole-injection buffer layer in organic light-emitting diodes using copper phthalocyanine (CuPc), poly(vinylcarbazole)(PVK), and Poly(3,4-ethylene dioxythiophene):poly(styrenesulfonate) (PEDOT: PSS) in a device structure of $ITO/bufferr/TPD/Alq_3/Al$. Polymer PVK and PEDOT:PSS buffer layer were produced using the spin casting method where as the CuPc layer was produced using thermal evaporation. Current-voltage characteristics, luminance-voltage characteristics and efficiency of device were measured at room temperature at various a thickness of the buffer layer. We observed an improvement in the external quantum efficiency by a factor of two, four, and two and half when the CuPc, PVK, and PEDOT:PSS buffer layer were used, respectively. The enhancement of the efficiency is assumed to be attributed to the improved balance of holes and elelctrons resulting from the use of hole-injection buffer layer. The CuPc and PEDOT:PSS layer function as a hole-injection supporter and the PVK layer as a hole-blocking one.

• 복식문화연구
• /
• 제8권3호
• /
• pp.360-373
• /
• 2000

The purpose of this thesis is to analyze the present conditions and problems of the Internet Fashion Shopping-Mall, grope for as active plan to the Internet Fashion Shopping-Mall as a strategic method of fashion industry. The fashion industry of Internet Electronic Commerce has good prospect, and I propose the following some strategic plans of Internet Fashion Shopping-Mall. On the basis of my study, as a means of technology supplement, Virtual Reality System, such as 3D System or the newest Electronic Dressing Room System to solve the problem of products'an actual feeling, should be needed for consumers to feel as they really put the clothes on. Second, to offer more diversity programs, such as consumer sensitivity program, additional service, fashion news, life information and so on, are needed for companies to come over again the consumers to connect to the shopping-mall site. And, to build more perfect security terms of payment systems, such as ICash, Disital Cash, Net Check, Internet Insurance and so on, should be introduced for consumers to pay and furnish their personal information. If these technological developments are realized, Internet Fashion Shopping-Mall products will be a great success.