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Hospice Palliative Care Education for Nurses in Japan
Matsushima, Tatsuko 가톨릭중앙의료원 가톨릭암센터 2003 암심포지움 Vol.- No.2
1. Development of hospice palliative care in Japan 2. Training program for expertnurses 3. Education program for clinical staff nurses 4. Future issues
The Parameter Learning Method for Similar Image Rating Using Pulse Coupled Neural Network
Matsushima, Hiroki,Kurokawa, Hiroaki Korea Multimedia Society 2016 The journal of multimedia information system Vol.3 No.4
The Pulse Coupled Neural Network (PCNN) is a kind of neural network models that consists of spiking neurons and local connections. The PCNN was originally proposed as a model that can reproduce the synchronous phenomena of the neurons in the cat visual cortex. Recently, the PCNN has been applied to the various image processing applications, e.g., image segmentation, edge detection, pattern recognition, and so on. The method for the image matching using the PCNN had been proposed as one of the valuable applications of the PCNN. In this method, the Genetic Algorithm is applied to the PCNN parameter learning for the image matching. In this study, we propose the method of the similar image rating using the PCNN. In our method, the Genetic Algorithm based method is applied to the parameter learning of the PCNN. We show the performance of our method by simulations. From the simulation results, we evaluate the efficiency and the general versatility of our parameter learning method.
A poroelastic model for ultrasonic wave attenuation in partially frozen brines
Matsushima, Jun,Nibe, Takao,Suzuki, Makoto,Kato, Yoshibumi,Rokugawa, Shuichi Korean Society of Earth and Exploration Geophysici 2011 지구물리와 물리탐사 Vol.14 No.1
유체를 포함하는 혼합 매질에서의 탄성파 고유 감쇠에 대한 다양한 메커니즘 중, 탄성파 전파 시 고체와 유체 사이에서의 상대적 운동은 가장 중요한 감쇠 메커니즘 중의 하나이다. 선행 연구에서는 얼음의 미세 공극 안에 존재하는 소금물이 초음파의 전파에 미치는 영향을 분석하기 위하여 얼음과 소금물이 공존하는 매질에서 초음파 전파 실험하였다. 부분적으로 동결된 소금물에서 각기 다른 온도에서의 초음파 감쇠의 물리적인 메커니즘을 350 ~ 600 kHz의 주파수 대역에서 규명하기 위하여, Biot 이론에 입각한 다공성의 탄생 모델을 도입하여 초음파의 전파를 측정하였다. 고체상은 얼음으로, 액체상은 소금물로 가정한 뒤 펄스 핵자기공명기술로 측정한 유체의 성질을 이용하여 각각의 온도에서의 공극률을 계산한 결과, 실험으로 측정한 감쇠값은 500 kHz에서 계산된 고유 감쇠값과 다르게 나타났으며 이는 squirt -flow 메커니즘과 파의 산란 효과와 같은 다른 감쇠 메커니즘도 고려해야 한다는 것을 의미한다.
Organic electrophosphorescent devices with mixed hole transport material as emission layer
Hidenobu Matsushima,Shigeki Naka,Hiroyuki Okada,Hiroyoshi Onnagawa 한국물리학회 2005 Current Applied Physics Vol.5 No.4
We report on the reduction of driving voltage in organic electrophosphorescent devices with mixed hole transport material asemission layer. The emission layer was mixed withN,N0-diphenyl-N,N0-(3-methylphenyl) -[1,10-biphenyl]-4,40-diamine (TPD) as ahole-transport material, 4,40-bis(9-carbazolyl)-biphenyl (CBP) as a host material for a phosphorescent material, tris(2-phenylpyri-dine) iridium (Ir(ppy)3) as a phosphorescent material and 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (bathocuproine: BCP) asan electron-transport material. The emission occurred from Ir(ppy)3 and was independent on the ratio of TPD and CBP. For triple-layered device with the TPD:CBP mixing ratio of 10:90, maximum luminance obtained was 104,000 cd/m2 atV ¼ 12 V,J¼ 490mA/cm2. Maximum eciency was 20lm/W at 3.1 mA/cm2..
Inverse Design and Analysis of Supersonic Biplane
Kisa MATSUSHIMA,Daigo MARUYAMA,Ryota NOGUCHI 한국항공우주학회 2008 한국항공우주학회 학술발표회 논문집 Vol.- No.-
With the aim of realizing a new concept of supersonic transport, aerodynamic wing design and analysis are discussed based on Computational Fluid Dynamics. A biplane airfoil originated by A. Busemann was extended to 3-D wings with a design Mach number of 1.7. Euler simulations of several biplane wing configurations were conducted. Due to the existence of wing tips, biplane wings do not perform as well as biplane airfoils. This is because the wingtip areas are affected by the three dimensionality of Mach cone integration of influenced areas. The three-dimensionality precludes the occurrence of an appropriate pressure wave interaction. Induced drag due to lift is also generated there. Thus, the wingtip area has a large drag coefficient. To overcome these problems. a tapered wing was herein considered. Then, Aerodynamic design of wing section shapes of the tapered biplane wing was conducted using a recently devised inverse problem method. The designed biplane wing shows a better lift-to-drag ratio performance than the 2-D flat-plate airfoil in the range where the lift coefficient is more than 0.17. In addition, some desirable pressure wave interaction phenomena were found in the three dimensional biplane.