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이상무,이영환,조평동,류명주,서태석,권세혁,임광,Lee, S.M.,Lee, Y.M.,Cho, P.D.,Ryu, M.J.,Suh, T.S.,Kweon, S.H.,Lim, K. 한국전자통신연구원 2003 전자통신동향분석 Vol.18 No.1
최근 정보통신 서비스의 제공 영역은 댁내로 그 초점이 맞추어지고 있다. 특히 우리나라 거주 환경은 주로 아파트 등에 의한 공동주택이므로 초고속 정보통신 서비스를 댁내로 효과적으로 유입하려면 이에 적합한 연계 시설이 이루어져야 한다. 최근의 통신기술은 나날이 발전하고 있어 기존의 전화망 설비를 기반으로 하더라도 새로운 네트워크 구성 방식이 요구되고 있기 때문에 댁내(공동주택 구내)의 통신설비 또한 새로운 양상으로 진화되고 있다. 이러한 댁내통신설비의 수용을 위하여는 그 확보 공간과 최적의 운용을 위한 환경이 마련되어야 한다. 본 논문에서 다루고자 하는 내용은 댁내통신설비의 설치 공간과 운용환경 중에서도 특히 운용환경에 대한 것으로서 위와 같은 새로운 초고속통신망 서비스 수용을 원활히 이룰 수 있도록 기존의 열악한 환경을 개선하고 적절한 환경 기준 또는 표준을 마련하기 위하여 댁내통신설비와 관련된 국제표준 중심의 각종 기준들을 분석하고 이에 더하여 실제의 공동주택 현장에서의 실태를 조사 분석하여 그 개선 방안을 절충함으로써 앞으로의 댁내통신설비 기술의 발전 추세에 발맞추고자 한 것이다.
사과박 , 참깨박 및 계분 혼합비율이 볏짚 사일리지의 품질에 미치는 영향
류영우,고영두,이상무 ( Y . W . Ryu,Y . D . Ko,S . M . Lee ) 한국축산학회 1998 한국축산학회지 Vol.40 No.3
An experiment was conducted to determine the effects of mixing ratio of rice straw(R), apple pomace(A), sesame oil meal(S) and cage layer excreta(C) on feed quality of rice straw silage. Various mixing ratios of the ingedients into silage were used in this study. There were 3 RA silages with mixing ratios of R and A; RA1 of 50 and 50?g RA2 of 40 and 60%, RA3 of 30 and 70%, respectively. The RAS silages 1 through 9 contained R, A and S with mixing ratios of 50+50+10, 50+50+15, 50+50+20, 60+40+10, 60+40+15, 60+40+20, 70+ 30+10, 70+30+15 and 70+30+20, respectively. On the other hand, the RAC silages 1 through 9 consisted of R, A and C with the mixing ratios of 50+50+10, 50+50+20, 50+50+30, 60+40+10, 60+40+20, 60+40+ 30, 70+30+10, 70+30+20 and 70+30+30. The average crude protein and crude fat contents of RAS silage were higher than the other ones(P$lt;0.01). Especially, crude protein content of RAS silages 3 was the highest (14.26%). The crude protein and crude fat contents of RAS silages increased by the addition of sesame oil meal. Crude fiber content was the highest at RA silage 3 (30.14%), but RAC silage 9 was the lowest (20.99%). Crude ash content was the highest at RAC silage 9 (17.72%), but RA silage 1 was the lowest (5.68%). The average NDF, ADF and cellulose contents of RA silages were higher than those of RAS and RAC silages. the average hemicellulose content was the lowest at RAC silage(P$lt;0.01), but its ligin content was the highest. The average pH value of silage was high in the order of RAC $gt; RAS $gt; RA. Acetic acid was high in the order of RAS $gt; RA $gt; RAC. Propionic acid was not detected at RA and RAS silages, but was at the RAC silages. Especially, the 7 and 8 silages of RAS were higher than the others. Lactic acid was high in the order of RAC $gt; RA $gt; RAS. Especially, RAC silage 9 was the highest (6.318%), but RAS silage 4 was the lowest (0.357%).
사과박 , 참깨박 및 계분 혼합 볏짚 Silage 급여가 한우의 육성율 , 채식행동 및 경제성에 미치는 영향
류영우,고영두,이상무 ( Y . W . Ryu,Y . D . Ko,S . M . Lee ) 한국축산학회 1998 한국축산학회지 Vol.40 No.3
This study was conducted to determine the effects of roughages types of R(rice straw), RAS silage[apple pomace 40% + rice straw 60% + sesame oil meal 15%(DM 15% addition of apple pomace + rice straw)] and RAC silage[apple pomace 40% + rice straw 60% + cage layer excreta 30%(DM 30% addition of apple pomace + rice straw)] on daily gain, eating behavior, economical efficiency and carcass characteristics of Korean Native Cattle. The results obtained were as follows: Body weight gain was high in the order of RAC silage $gt; RAS silage $gt; R treatment. Daily gain was the highest at RAC silage treatment as 1.36㎏, but R treatment was the lowest as 1.27㎏. Eating time, ruminating time and bolus number were high in the order of R $gt; RAS silage $gt; RAC silage treatment at 7 months(P$lt;0.05, 0.01), and chewing number was high in the order of R $gt; RAC silage $gt; RAS silage treatment(P$lt;0.05). Eating time, ruminating time, blows number, urinating number and excreting number were lower RAC silage treatment than R and RAS silage treatment at 11 months(P$lt;0.01). Eating time and ruminating time at 15 months were higher RAS silage and RAC silage treatment than R treatment(P$lt;0.01), but bolus number, chewing number urinating number and excreting number were not significantly affected by the treatments. Net income according to the treatments was high in the order of RAC silage(476,498 won) $gt; RAS silage(447,139 won) $gt; R treatment(304,332 won). As mentioned above the results, RAS and RAC silage feeding were highly evaluated about improvement of body weight gain, raughage cost and quantity grade for Korean native cattle.
시각장애인 유도 로봇의 자기 위치 추적 시스템 및 사용자 인터페이스 개발
유제군,신동범,권오상,김낙환,이상무,이응혁,홍승홍,Ryu Je-Goon,Shen Dong-Fan,Kwon Oh-Sang,Kim Nack-Hwan,Lee Sang-Moo,Lee Eung-Hyuk,Hong Seung-Hong 한국정보처리학회 2005 정보처리학회논문지D Vol.12 No.3
To guide the guiding robot for the visually impaired carefully, the digital map to be used to search a path must be detailed and has some information about dangerous spots. It also has to search not only safe but also short path through the position data by GPS and INS sensors. In this paper, as the difference of the ability that the visually unpaired can recognize, we have developed the localization tracking system so that it can make a movement path and verify position information, and the global navigation system for the visually impaired using the GPS and INS. This system can be used when the visually impaired move short path relatively. We had also verified that the system was able to correct the position as the assistant navigation system of the GPS on the outside. 시각 장애인용 유도 로봇을 안전하게 유도하기 위해서는 경로를 검색하기 위해 사용되는 전자지도가 섬세해야 하며 위험한 위치에 대한 정보를 가지고 있어야 한다. 또한 GPS와 INS에 의해 획득한 위치정보를 통하여 안전하면서도 빠른 최단 경로를 검색해야 한다. 본 논문에서는 시각 장애인의 인식 능력의 차이에 따라 시각 장애인에게 경로의 안내 및 위치정보만을 제공하는 이동경로 생성 및 확인을 위한 자기 위치 추적 시스템과 주변 환경정보인식 및 GPS 오차보정기능을 가진 유도로봇과 통합된 시각장애인용 전역항법시스템을 구현하였다. 이 시스템을 통하여 시각 장애인이 비교적 짧은 거리를 이동하고자 할 때 활용할 수 있으며, 실외 환경에서는 GPS의 보조 항법 시스템으로 위치의 보정을 할 수 있음을 알 수 있었다.
고하중 불평형 회전체의 정속 주행 제어기 설계를 위한 유연체 제어 기반 시뮬레이션 플랫폼 구축
박광현(Gwang Hyeon Park),남경태(Kyung Tae Nam),이상무(Sang Mu Lee),안기탁(Gi Tak An),류성무(Sung Mu Ryu),구자춘(Ja Choon Koo) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
It is important that constant velocity of gantry of 3D fluoroscopy for correct digital image processing. But constant velocity driving is difficult because gantry has heavy mass and eccentric loads. So a design of control algorithm and performance evaluation are needed for constant velocity of gantry of 3D fluoroscopy. But it is difficult that performance evaluation of control algorithm because of a special quality of 3D fluoroscopy. And flexible model analysis is necessary for resonance and displacement. So motor, reductor and unbalanced gantry of 3D fluoroscopy are designed with multibody dynamic analysis program, and simulation platform is designed for performance evaluation of robust control algorithm against disturbance. Dive performance such as velocity ripple in various condition was observed. So this paper proposes a design of flexible model simulation platform of imbalanced rotor with heavy mass for evaluation of control algorithm for constant velocity.