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A Solution for SOA based Converged Services in Telecommunication Service Features
JinHong Yang,HyoJin Park 대한전자공학회 2007 ITC-CSCC :International Technical Conference on Ci Vol.2007 No.7
This paper describes how a telecommunication based Open APIs can support flexibility for converging services and SOA based service architecture concept. In addition it addresses how it can be used with Web Services to enable a new set of converged telecommunication services and integrated web based services.
양진홍(Jinhong Yang),강수진(Soojin Kang),김철수(ChulSoo Kim) 한국정보과학회 2004 한국정보과학회 학술발표논문집 Vol.31 No.1A
인터넷의 폭발적인 성장으로 인하여 MAN(Metropolitan Area Network)은 기존 음성 트래픽 전송 중심의 SONET/SDH(Synchronous Optical NETwork/Synchronous Digital Hierarchy) 환경에서 데이터 트래픽을 수용 할 수 있는 MSPP(MultiService Provisioning Platform) 환경으로 변해가고 있다. 이러한 네트워크 환경에서 이종 망간의 스위칭 역할을 수행하는 NG-SDH장비는 각 망간의 OAM을 제공하기 위해 OAM(Operation/Administration/Maintenance)신호에 대한 IWF(InterWorking Function) 기능을 필요로 하게 된다. 본 논문은 이종 망간 OAM 기능 제공을 위한 IWF에 대해 분석, 정의하고 이를 기반으로 NG-SDH 장비 블록 내에서 이종망간 OAM 기능을 제공할 OAM 변환기를 설계하였다.
Fei Yang,Shaohua Bi,Xinmin Shen,Xiaocui Yang,Xinqing Wang,Xiangpo Zhang,Jinhong Xue,Xiaonan Zhang,Qin Yin,Juying Dai,Wenqiang Peng,Jingwei Zhu,Junhong Ren 대한기계학회 2023 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.37 No.12
To prevent noise pollution, a hexagonal acoustic metamaterial cell combining multiple parallel Helmholtz resonators with optional apertures is proposed. There were 6 trapezoidal chambers and 6 triangular chambers, and each front panel had 6 different apertures, which meant that there were 6 12 = 2176782336 possible permutations. The distribution of sound pressures obtained by acoustic finite element simulation revealed the acoustic absorption mechanism, which provided effective guidance to alter the absorption capacity. For certain scenarios, the acoustic absorption performance was optimized by the joint combination of artificial neural network and acoustic finite element simulation. Through manufacturing and testing the sample, actual average acoustic absorption coefficients were achieved at 0.6733, 0.7296, 0.8785 and 0.7065 for the target frequency ranges 350-950 Hz, 400-1000 Hz, 500-800 Hz and 350-700 Hz, respectively, with total thickness 40 mm. The tunable acoustic absorption property proved that the hexagonal acoustic metamaterial cell was appropriate for noise reduction with variable frequency ranges.
양종모(Jongmo Yang)박진홍(Jinhong Park) 한국음악교육공학회 2011 음악교육공학 Vol.- No.12
본 논문은 초등학교에서 이루어지고 있는 오케스트라 활동이 학업성취도 평가에 어떤 영향을 주는지를 살펴보기 위해, 오케스트라 활동을 하고 있는 한 개 학교를 지정하고, 오케스트라 단원들의 성적 변화를 살펴보았다. 그 결과, 전체 4개 과목의 합(국어, 수학, 사회, 과학)에서는 4학년과 6학년에서 통계적으로 유의미한 차이를 보였다. 그리고 과목별로 4학년에서는 수학과 과학, 5학년에서는 수학, 6학년에서는 수학과 사회에서 통계적으로 유의미한 차이가 있는 것으로 나타났다. 통계적으로 유의미한 차이를 보이는 과목들은 모두 단원들이 비단원들에 비해 점수가 향상되는 것을 보여 주었다. 특히, 3개 학년에 공통적으로 단원들의 수학 과목의 점수가 상대적으로 높게 나타나고 있다는 점은 오케스트라 활동이 수학 과목의 성적을 올리는 데 긍정적인 효과가 있다는 점을 확인해 주고 있다. 이 연구의 결과는 오케스트라 활동이 학업성적을 높이는 데 부정적인 영향보다는 긍정적인 영향이 더 크다는 것을 보여 주고 있으며, 특히 수학 점수를 올리는 데 효과가 있다는 점을 말해 준다. This paper has examined the changes in the school records of orchestra members by designating one school performing orchestra activity in order to examine what effects the orchestra activity has on learning achievement evaluations taking place in elementary schools. As a result, a statistical significance of difference was shown in fourth grade and sixth grade in the sum of all four subjects. And by subjects, a significance difference was turned out statistically at mathematics and science in fourth grade, at mathematics in fifth grade as well as at math and social studies in sixth grade. All subjects showing a statistical significance of difference meant more improvement of score by orchestra members than non-members. Especially, the fact that mathematics score of orchestra members commonly showing as relatively high in three grades verifies the fact that orchestra activity has a positive effect in raising mathematics score. The result of this study told us that the orchestra activity has greater positive effect than negative effect. We must have more interest and study about the effect of musical activities on learining achievements.
이동로봇의 안전자율주행을 위한 실내환경에서의 LiDAR 점 데이터군 증강
노진홍(Jinhong Noh),양견모(Kyon-Mo Yang),박민로(Min-Ro Park),이지원(Ji-won Lee),김민규(Min-Gyu Kim),서갑호(Kap-Ho Seo) 제어로봇시스템학회 2022 제어·로봇·시스템학회 논문지 Vol.28 No.1
The mobile robot is surrounded by various structures. Glass is widely used for constructing walls and doors, and it is difficult for mobile robots to detect glass. Related studies consider the optical properties of glass when reconstructing the position of glass using LiDAR data. However, most of them depend on SLAM (Simultaneous Localization And Mapping) or Localization algorithm and prior information about the environment. This paper proposes a point cloud augmentation algorithm to predict glass panel position. The point cloud outlier is removed with the proposed local standard score, and the boundary of free space is augmented by linear interpolation. It is modularized as a post-processing of LiDAR sensor data that does not require any prior information about the environment. This algorithm was applied to an actual mobile robot. Glass recognition performance was evaluated by SLAM while driving in an office environment.
Wie, Jinhong,Kim, Byung Joo,Myeong, Jongyun,Ha, Kotdaji,Jeong, Seung Joo,Yang, Dongki,Kim, Euiyong,Jeon, Ju-Hong,So, Insuk TaylorFrancis 2015 Channels Vol.9 No.4
<P>TRPC4 is important regulators of electrical excitability in gastrointestinal myocytes, pancreatic β-cells and neurons. Much is known regarding the assembly and function of these channels including TRPC1 as a homotetramer or a heteromultimer and the roles that their interacting proteins play in controlling these events. Further, they are one of the best-studied targets of G protein-coupled receptors and growth factors in general and Gα<SUB>i/o</SUB> and Gα<SUB>q</SUB> protein coupled receptor or epidermal growth factor and leptin in particular. However, our understanding of the roles of small G proteins and leptin on TRPC4 channels is still rudimentary. We discuss potential roles for Rasd1 small G protein and leptin in channel activation in addition to their known role in cellular signaling.</P>