• Title/Summary/Keyword: Stuffing

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Generation of high quality stream for static picture quality test in DTV system (DTV시스템에서의 정적 화질 테스트를 위한 고화질 스트림의 생성)

  • 이광순;한찬호;장수욱;김은수;송규익
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.29 no.2C
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    • pp.315-323
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    • 2004
  • In this paper we present a method to generate the bit stream of static video test patterns for testing the picture quality in DTV system. The proposed user-defined quantization table is suitable for the static video test pattern and for minimizing the deterioration of picture quality by quantization, the underflow or overflow of video buffer generated on the process of coding the static video test pattern is compensated by a adaptive zero stuffing algorithm so that optimal picture quality is implemented. Experimental result showed that the test pattern stream encoded by MPEG-2 software with the proposed algorithm had a stable bit rate and good video quality during the decoding process, which is about 3 dB higher than that of the conventional case.

Development of Cultural Products using Quilting Technique - Focused on the colored tread quilting technique - (누비기법을 응용한 문화상품 디자인 개발 연구 - 색실누비기법을 중심으로 -)

  • Oh, Ga-Young;Kim, Jong-Ho
    • Journal of the Korean Society of Costume
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    • v.60 no.10
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    • pp.80-87
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    • 2010
  • The purpose of this study is to develop cultural products containing Korean beauty with modern sense by applying quilting with dyed threat among Korean traditional quilting works. Quilting with dyed thread using various colored thread expresses curve, straight and oblique lines harmoniously, is mainly used to make household goods such as a pouch, a spectacle case and a quilting pocket and a circular pattern, a cross pattern and a geometric pattern are shown in this kind of quilting. As for sewing method, half backstitch and full backstitch are used, and products made by this method are pouches stuffing pads in cotton or silk and quilting it finely to make patterns with various colored threads of stuffing cotton between linings and spectacle cases, a packet of needles and case of spoon and chopsticks which give various feelings according to arrangement of colors. Design of cultural products by applying the beauty of curves of hanbok, sleave-seam of jeogori, trimming line of dangeui. We expect that various cultural products with Korean traditional beauty and modern convenience will be developed continually by introducing the artistic strength of quilting with dyed thread to practical life.

Effect of Stuffing of TiN on the Diffusion Barrier Property (II) : Cu/TiN/Si Structure (TiN의 충진처리가 확산방지막 특성에 미치는 영향(II) : Cu/TiN/Si 구조)

  • Park, Gi-Cheol;Kim, Gi-Beom
    • Korean Journal of Materials Research
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    • v.5 no.2
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    • pp.169-177
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    • 1995
  • The diffusion barrier property of 100-nm-thick titanium nitride (TiN) film between Cu and Si was investigated using sheet resistance measurements, etch-pit observation, x-ray diffractometry, Auger electron spectroscopy, and transmission electron microscopy. The TiN barrier fails due to the formation of crystalline defects (dislocations) and precipitates (presumably Cu-silicides) in the Si substrate which result from the predominant in-diffusion of Cu through the TiN layer. In contrast with the case of Al, it is identified that the TiN barrier fails only the in-diffusion of Cu because there is no indication of Si pits in the Si substrate. In addition, it appears that the stuffing of TiN does not improve the diffusion barrier property in the Cu/TiN/Si structure. This indicates that in the case of Al, the chemical effect that impedes the diffusion of Al by the reaction of Al with $TiO_{2}$ which is present in the grain boundaries of TIN is very improtant. On the while, in the case of Cu, there is no chemical effect because Cu oxides, such as $Cu_{2}O$ or CuO, is thermodynamically unstable in comparison with $TiO_{2}$. For this reason, it is considered that the effect of stuffing of TiN on the diffusion barrier property is not significant in the Cu/ TiN/Si structure.

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A Study on the Design of the Terminal Repeater System for 565 Mb/s Optical Fiber Transmission (565 Mb/s 광전송용 단국중계장치 설계에 관한 연구)

  • 유봉선;박병철
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.15 no.10
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    • pp.829-841
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    • 1990
  • On assuming that the transmission speed of the original information is the fifth-order transmission speed of the Korea digital multiplex hierarchy (564.992Mb/s), this paper proposes a new structure of the transmission line frame at the terminal repeater system, in order to not only maintain and conserve 565Mb/s optical fiber transmission system but also make the B.S.I. of digital communication network for the optical transmission. And the structure uses the mBIZ transmission line code, which is considered the optimal transmission line code of conventional transmission line codes. System hardware of the transmission line frame structure proposed in this paper is consisted by a method of pulse stuffing after converting the speed of the original information signal sequence at the terminal repeater system for 565Mb/s optical transmission. As a result of this, we can prevent the optical transmission system from a domino phenomenon, the phenomenon of the continuous error multiplication of systems by the transmission error, and suppress timing jitter and the identical consecutive digit number. And also we can improve SNR of the optical transmission system about 2dB because of raising total BER at the optical terminal system up to 10.

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The Changes of Side Dishes in "Eumsikdimibang", "Gyuhapchongseo", "Chosunm usangsinsikyorijebub" according to the Current of the Time ("음식디미방","규합총서(閨閤叢書)","조선무쌍신식요이제법(朝鮮無雙新式料理製法)"에 수록된 시대적 흐름에 따른 부식류의 변화)

  • Kim, Up-Sik;Han, Myung-Joo
    • Journal of the Korean Society of Food Culture
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    • v.24 no.4
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    • pp.366-375
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    • 2009
  • This study examined the changes of side dishes in "Eumsikdimibang", "Gyuhapchongseo", "Chosunmusangsinsikyorijebub" over time. As food ingredients, seaweed, red pepper, salted fish, Korean hot pepper paste have been used in "Gyuhapchongseo". The use of cattle by parts, saltwater fish, Chinese cabbage, powdered red pepper, garlic have increased in"Chosunmusangsinsikyorijebub". Cooking techniques, such as the use of wheat flour, a double boiler by the use of steam, and boiling and then roasting cuisine were mostly used in"Eumsikdimibang", but reduced in"Gyuhapchongseo". In "Gyuhapchongseo", the cooking methods are primarily aimed at a positive visual effect, and slices of dried meat seasoned with spices have increased. In"Chosunmusangsinsikyorijebub", various Tang (Guk), the taste of food changed by controlling the gravy content (Gigimi, Chigye, Chorim), meat mixing oil, vegetable and mushroom together to cook and boiling down the main food ingredients to soak the seasoning were increased. Dog-meat steamed dish using the intestine of dog in "Eumsikdimibang" was changed to small intestine of cattle steamed dish in "Gyuhapchongseo". And seasoned dog meat with choncho in "Eumsikdimibang" influenced on beef tail soup with Korean hot pepper paste in "Gyuhapchongseo", and Yookgyejang soup using Korean hot pepper paste in"Chosunmusangsinsikyorijebub". In steamed young chicken, the stuffing such as soybean paste, choncho, welsh onion, leek and flour in "Eumsikdimibang" was changed to minced beef, welsh onion, dropwort and Shiitake mushroom in"Gyuhapchongseo". The steamed young chicken in "Chosunmusangsinsikyorijebub" with stuffing was added to chicken soup using glutinous rice, and ginseng powder. Now, the chicken soup was changed to Samgyetang with glutinous rice, and ginseng. In "Chosunmusangsinsikyorijebub", various vegetable dishes were cooked with beef.

Minimizing Data Frame in CAN Controller Area Network for Humanoid Robot (CAN 기반 휴머노이드 로봇에서의 데이터 프레임 최소화)

  • Kwon, Sun-Ku;Huh, Uk-Youl;Kim, Jin-Geol
    • Proceedings of the KIEE Conference
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    • 2005.07d
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    • pp.2806-2808
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    • 2005
  • The Controller Area Network (CAN) is being widely used for real-time control application and small-scale distributed computer controller systems. When the stuff bits are generated by bit-stuffing mechanism in the CAN network, it causes jitter including variations in response time and delay. In order to eliminate this jitter, stuff bit must be controlled to minimize the response time and reduce the variation of data transmission time. At first, this paper shows that conventional CAN protocol causes the transmission time delay. Secondly, this paper proposes the method to reduce the stuff bits by restriction of available identifier. Finally, data manipulation method can be reduced the number of stuff-bits in the data field. The proposed restriction method of ID and manipulating data field are pretty useful to the real-time control strategy with respect to performance. These procedures are implemented in local controllers of the ISHURO (Inha Semyung Humanoid Robot).

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A Study on Designing of LYNX Datalink (해상작전헬기용 데이터링크 설계 연구)

  • Lee, Young-Joong;Park, Joo-Rae;Lyu, Si-Chan
    • Journal of the Korea Institute of Military Science and Technology
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    • v.9 no.4
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    • pp.39-49
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    • 2006
  • LYNX ESM has not only ESM function but Datalink function. The LYNX boarded equipment Interface and Channel coding is needed for LYNX Datalink to support the mother ship with tactical data included threat radar analysis data of LYNX ESM, navigation data, Radar and Sonar of LYNX. The interface of loaded equipments are various protocol like as ARINC419/429, RS232, Synchro, Sync Serial. The Channel coding of Convolution-Scrambler-Interleaver-Bit Stuffing is applied for recovering the transmission data mixed with propagation errors in sea environment.

Development of Eco-Environmental On/Off Diaphragm Valve (친환경 온/오프 다이어프램 밸브 개발)

  • Cheong, Seon-Hwan;Choi, Seong-Dae;Klm, Shin-Ho
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.6 no.4
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    • pp.28-35
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    • 2007
  • Currently, most of all valves using at the semiconductor & LCD manufacturing process are packless type. Such valves are needed to have the functions to protect perfectly from the leakage of fluid by using bellows and diaphragm instead of the grand packing. But not only those valves made in Korea are not available at this point, but also advanced foreign manufacturers do not open enough their data on the basic technology. Otherwise although they open the data a little, they are almost data about stainless steel for pneumatic valves. In this paper, it was focused on the fluid valves for chemical & DI water based on the data of steel valves which are already using commercially. And also this study concentrated to collect the basic developing data of Eco-On/Off diaphragm valve by ourselves.

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W-B-C-N 확산방지막에서 질소농도에 따른 Stress 에 대한 연구

  • So, Ji-Seop;Lee, Channg-U
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2005.11a
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    • pp.72-73
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    • 2005
  • Stress behavior was studied to investigate the internal behaviors of boron, carbon, and nitrogen in the 1000${\AA}$-thick tungsten boron carbon nitride (W-B-C-N) thin films. The impurities in the W-B-C-N thin films provide stuffing effects that were very effective for preventing the interdiffusion between interconnection metal and silicon substrate during the subsequent high temperature annealing process. The resistivity of W-B-C-N thin film decreases as an annealing temperature increase. The W-B-C-N thin films have compressive stress, and the stress value decreased up to $4.11\times10^{10}dyne/cm^2$ as an $N_2$ flow rate increases up to 3 sccm.

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A Study on the Measurement Method of Leakage for Pneumatic Cylinder (공기압실린더의 누설유량 계측에 관한 연구)

  • Jang, J.S.;Ji, S.W.
    • Journal of Power System Engineering
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    • v.11 no.4
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    • pp.98-102
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    • 2007
  • In this study, a measurement method of leakage flow-rate for pneumatic driving apparatus is proposed. The existing measurement methods of leakage flow-rate of air need disassemble the test component. Therefore, there is no effective method to measure the leakage flow-rate while operating pneumatic driving apparatus. In this study, the leakage flow-rate is measured from the pressure change in an isothermal chamber that can realize isothermal conditions by stuffing the steel wool into it. Therefore, a wide range of flow-rate could be measured only from the pressure response and the leakage flow-rate can be measured during operating pneumatic driving apparatus. The effectiveness of the proposed method is proved by experimental results.

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