• 혜화의학회지
• /
• 제14권1호
• /
• pp.67-81
• /
• 2005

We have conclusions after the study of muscular system about small intestine channel of hand taiyang muscle. Judging from many studies of interrelation between Meridian muscle and muscle, it is considered that Meridian muscle theory has some similarities with modern anatomical muscular system. It is considered that Small intestine channel of hand taiyang muscle contains Flexor digitorum profundus muscle, Extensor digiti minimi muscle, Abductor digiti minimi muscle, Extensor carpi ulnaris muscle, Flexor carpi ulnaris muscle, Triceps brachii muscle, Infraspinatus muscle, Levator scapulae muscle, Sternocleidomastoid muscle, Masseter muscle, Temporalis muscle. The symptoms of small intestine channel of hand taiyang muscle is similar to referred pain of modern Myofascial Pain Syndrome, and the medical treatment of "I Tong Wi Su(以痛爲輸)" is also similar to that of Myofascial Pain Syndrome. Small intestine channel of hand taiyang muscle is one of the three yang channels of hand muscle, and it has unity in extension of upper limb and trunk in the movement. And it is thought that weakness of small intestine channel of hand taiyang muscle is related with muscular system causing Round Shoulder and Head Forward Position.

• Journal of the Optical Society of Korea
• /
• 제14권4호
• /
• pp.351-356
• /
• 2010

We investigated the combined effect of fiber chromatic dispersion and self-phase modulation (SPM) in multi-channel subcarrier multiplexed (SCM) optical transmission systems. We theoretically analyzed the transmission characteristics of the SCM signals with the effect of SPM and chromatic dispersion in a single-mode optical fiber by numerical simulations based on the nonlinear Schrodinger equation. The numerical simulation results revealed that the effect of fiber dispersion and SPM could occur independently between subcarrier channels in two-channel SCM systems for small optical modulation index (OMI) and large channel spacing. However, for large OMI, small channel spacing, and large fiber launching power, we found a performance degradation of the two-channel system compared to that of a single-channel system. These parameters are therefore important for the optimization of multi-channel SCM systems applicable to radio over fiber networks.

• Journal of Information Processing Systems
• /
• 제10권1호
• /
• pp.92-102
• /
• 2014

In recent years, there has been growing interest in secure pairing, which refers to the establishment of a secure communication channel between two mobile devices. There are a number of descriptions of the various types of out-of-band (OOB) channels, through which authentication data can be transferred under a user's control and involvement. However, none have become widely used due to their lack of adaptability to the variety of mobile devices. In this paper, we introduce a new OOB channel, which uses accelerometer-based gesture input. The gesture-based OOB channel is suitable for all kinds of mobile devices, including input/output constraint devices, as the accelerometer is small and incurs only a small computational overhead. We implemented and evaluated the channel using an Apple iPhone handset. The results demonstrate that the channel is viable with completion times and error rates that are comparable with other OOB channels.

• 혜화의학회지
• /
• 제13권1호
• /
• pp.61-69
• /
• 2004

I have come to next conclusions in consequence of documentary study about medical books of many generations regarding acupuncture and moxibustion therapy of arthalgia syndrome. 1. Jing point of regular channels is most used. Next there are extraordinary point, ashi point in the acupuncture and moxibustion therapy of arthalgia syndrome. 2. The gall baldder channel of foot-shaoyang is most used. Next there are the urinary bladder channel of foot-taiyang, the large intestine channel of hand-yangming, the stomach channel of foot-yangming, the small intestine channel of hand-taiyang, the spleen channel of foot-taiyin, the liver channel of foot-jueyin, the triple-warmer channel of hand-shaoyang, the du channel, the lung channel of hand-taiyin, the kidney channel of foot-shaoyin, the pericardium channel of hand-jueyin, the heart channel of hand-shaoyin, the ren channel in the order of frequency in used channel among the twelve channels. 3. Three yang channels of foot is most used. Next there are three yang channels of hand, three yin channels of hand, three yin channels of foot in the order of frequency in use among the twelve channels. 4. The gall baldder channel of foot-shaoyang is most used. Next there are the urinary bladder channel of foot-taiyang, the large intestine channel of hand-yangming, the triple-warmer channel of hand-shaoyang, the stomach channel of foot-yangming, the small intestine channel of hand-taiyang, the liver channel of foot-jueyin, the lung channel of hand-taiyin, the spleen channel of foot-taiyin, the kidney channel of foot-shaoyin, the du channel, the pericardium channel of hand-jueyin, the ren channel the heart channel of hand-shaoyin in the order of frequency in used point among the twelve channels. 5. Huantiao is most used. Next there are Weizhong, Quchi, Yangfu, Chize Feiyang Xiyangguan Xiguan Tianjing, Sanli Xiaoluo in the order of frequency in use. 6. Jing point in the order of frequency of use, expel wind-evil and remove wetness-evil on the Acupuncture and Moxibustion Therapy of Arthalgia Syndrome.

• 수산해양기술연구
• /
• 제57권3호
• /
• pp.214-227
• /
• 2021

The distribution of tidal current and tidal induced residual current, topographical eddies and tidal residual circulation in the waters surrounding the Geumo Island-An Island channel were identified through numerical model experiments and vorticity balance analysis. Tidal current flows southwest at flood and northeast at ebb along the channel. The maximum flow velocity was about 100-150 cm/s in neap and spring tide. During the flood current in the neap tide, clockwise small eddies were formed in the waters west of Sobu Island and southwest of Daebu Island, and a more grown eddy was formed in the southern waters of Geumo Island in the spring tide. A small eddy that existed in the western waters of Chosam Island during the ebb in neap tide appeared to be a more grown topographical eddy in the northeastern waters of Chosam Island in spring tide. Tidal ellipses were generally reciprocating and were almost straight in the channel. These topographical eddies are made of vorticity caused by coastal friction when tidal flow passes through the channel. They gradually grow in size as they are transported and accumulated at the end of the channel. When the current becomes stronger, the topographic eddies move, settle, spread to the outer sea and grow as a counterclockwise or clockwise tidal residual circulation depending on the surrounding terrain. In the waters surrounding the channel, there were counterclockwise small tidal residual circulations in the central part of the channel, clockwise from the northeast end of the channel to northwest inner bay of An Island, and clockwise and counterclockwise between Daebu Island and An Island. The circulation flow rate was up to 20-30 cm/s. In the future, it is necessary to conduct an experimental study to understand the growth process of the tidal residual circulation in more detail due to the convergence and divergence of seawater around the channel.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제10권5호
• /
• pp.1976-1997
• /
• 2016

This paper investigates the problem of co-tier interference mitigation for dynamic small- cell networks, in which the load of each small-cell varies with the number of active associated small-cell users (SUs). Due to the fact that most small-cell base stations (SBSs) are deployed in an ad-hoc manner, the problem of reducing co-tier interference caused by dynamic loads in a distributed fashion is quite challenging. First, we propose a new distributed channel allocation method for small-cells with dynamic loads and define a dynamic interference graph. Based on this approach, we formulate the problem as a dynamic interference graph game and prove that the game is a potential game and has at least one pure strategy Nash equilibrium (NE) point. Moreover, we show that the best pure strategy NE point minimizes the expectation of the aggregate dynamic co-tier interference in the small-cell network. A distributed dynamic learning algorithm is then designed to achieve NE of the game, in which each SBS is unaware of the probability distributions of its own and other SBSs' dynamic loads. Simulation results show that the proposed approach can mitigate dynamic co-tier interference effectively and significantly outperform random channel selection.

• Nuclear Engineering and Technology
• /
• 제20권2호
• /
• pp.80-87
• /
• 1988

소형냉각재상실사고(SBLOCA)와 대형냉각재상실사고(LBLOCA)중에 노심의 Average Channel과 Hot Channel에서의 유량분포를 예측하였다. 아울러 REALP5/MOD2 코드를 사용하여 두 채널사이의 교차류고려여부가 실제사고 분석결과에 미치는 영향을 평가하였다. 현재까지 SBLOCA계산에서는 노심을 한개의 채널로 모델하는 것이 충분하다고 판단되어 왔으나 본 계산결과에 의하면 보수적인 계산을 위해서는 Hot Channel 모델링이 필요한 것으로 밝혀졌다. 그러나 LBLOCA Blowdown Phase존에서는 교차류의 고려 여부에 상관없이 Hot Channel 이 Average Channel보다 보수적 인 결과를 가져오며, 교차류의 영향도 미세한 것으로 판명되었다.

• 대한기계학회논문집B
• /
• 제31권5호
• /
• pp.491-498
• /
• 2007

Flame characteristics of a methane-air premixed flame stabilized in a heat-regenerative small combustor were investigated experimentally. A small combustor having two counter-current shallow channels and a combustion space at one side was developed. In which the channel-gap was less the ordinary quenching distance of a stoichiometric methane-air premixed flame. Two design parameters of channel gap and thickness of the middle wall, which is located between two channels for unburned and burned gases, were varied. Flame stabilization conditions and characteristic flame behaviors were experimentally examined. Conclusively, Blowout conditions were governed mostly by the scale of the combustion space, and flashback conditions into the channel are dominated by the channel gap. Surface temperatures of the combustor were between 100 to 500$^{\circ}C$. Additionally, two distinctive flame stabilization modes of radiation and well-stirred?reaction were observed and their applicability was discussed.

• 대한전자공학회논문지TC
• /
• 제40권4호
• /
• pp.1-9
• /
• 2003

CDMA 시스템에서는 일반적으로 파일럿채널이 존재하며 이를 이용하여 채널추정을 한다. 그러나 CDMA 시스템이 고속전송을 위해 광대역을 사용하면서 한 칩(chip)의 크기가 작아지게 되었고 이에 따라 다경로 분해능력이 커지게 됨에 따라 수신 다이버시티 경로수가 증가하게 되었다. 수신 경로수의 증가에 따라, 주어진 전체 신호대잡음비에서, 이전보다 각 경로의 수신전력은 미약해지고 파일럿만으로는 정확한 채널추정이 힘들어졌다. 파일럿의 에너지가 충분치 않을 경우, 보다 정확한 채널추정을 위해서 파일럿뿐만 아니라 데이터를 사용하는, 결정지향 채널추정방법을 사용할 수 있으나 결정지향 채널추정방법에서는 결정오류의 발생으로 인해 시스템의 성능을 보장하지 못한다. 이 논문에서는 CDMA 시스템을 위해서, 파일럿채널과 함께 데이터채널을 같이 이용하여 채널추정을 할 때의 최적의 채널추정방법을 제안한다. 제안된 방법은 신호대잡음비와 심벌오류확률을 이용하여 파일럿채널과 데이터채널의 채널추정값을 최적의 비로 결합하여 사용한다. 실험결과에서, 제안된 방법은 파일럿채널만으로 충분한 성능을 얻지 못하는 경우에도 잘 동작한다는 것을 보였다.

• International journal of advanced smart convergence
• /
• 제9권3호
• /
• pp.49-58
• /
• 2020

Non-orthogonal multiple access (NOMA) has been recognized as a significant technology in the fifth generation (5G) and beyond mobile communication, which encompasses the advanced smart convergence of the artificial intelligence (AI) and the internet of things (IoT). In NOMA, since the channel resources are shared by many users, it is essential to establish the user fairness. Such fairness is achieved by the power allocation among the users, and in turn, the less power is allocated to the stronger channel users. Especially, the first and second strong channel users have to share the extremely small amount of power. In this paper, we consider the power optimization for the two users with the small power. First, the closed-form expression for the power allocation is derived and then the results are validated by the numerical results. Furthermore, with the derived analytical expression, for the various channel environments, the optimal power allocation is investigated and the impact of the channel gain difference on the power allocation is analyzed.