16 Result(s)
within
Conference Paper
T Nakayama
English
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Chapter and Conference Paper
Hemodynamic Analysis of Intracranial Aneurysms with Atherosclerosis
Intracranial aneurysms can have atherosclerotic wall properties that may be important in predicting aneurysm history. This study aimed to investigate hemodynamic characteristics of atherosclerotic legions in i...
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Chapter and Conference Paper
Development of CW CO2 Laser Percussion Technique
Biological tissue has a complex structure consisting of various kinds of tissues. CO2 laser radiation is strongly absorbed by the water in biological tissue. It is thus used to make incisions in biological tissue...
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Chapter and Conference Paper
The Clinical Utility of Multimarker RT-PCR in the Detection of Occult Metastasis in Patients with Melanoma
Cutaneous melanoma is characterized by a high propensity for metastasis. Currently, surgical intervention remains the mainstay of therapy. This approach has proven most beneficial when the diagnosis is of earl...
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Chapter and Conference Paper
Self-Tolerance: Multiple Strategies for Peripheral Unresponsiveness of T Cells
We discuss in this paper various strategies taken by the immune system to achieve and maintain the self-tolerance. Using transgenic mice with TcR ß and ß chain genes from a CD4 dependent self class II-reactive...
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Chapter and Conference Paper
Dynamic Structure Factor and Its Single-Length Scaling for Random Fractal Structures
We present our numerical results on the dynamic structure factor for largescale site-percolating networks (site numbers from 93,382 to 110,793), and confirm its scaling properties. It is shown that the dynamic...
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Chapter and Conference Paper
Raman Correlation Function of Percolating Networks
The Raman correlation function C (q,ω)is calculated for d = 2 percolating networks by direct simulations. An array-processing supercomputer is efficiently utilized by applying a novel numerical algorithm. We have...
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Chapter and Conference Paper
Electronic Structures of Hetero-Crystalline Semiconductor Superlattices
Crystal structures of hetero-crystalline superlattices are proposed and band structures of (hexagonal-diamond Si)/(cubic-diamond Si) and (wurzite ZnS)/(zinc-blend ZnS) superlattices are calculated using the fi...
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Chapter and Conference Paper
Magnetic Shield of Bi-Pb-Sr-Ca-Cu-O High-Tc Superconductors at 77K in a Weak Magnetic Field
Magnetic shield of Bi-Pb-Sr-Ca-Cu-O high-Tc superconductor which is applicable to neuromagnetic measurements was investigated. To measure a magnetic shielding effect of a Bi-Pb-Sr-Ca-Cu-O superconducting vesse...
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Chapter and Conference Paper
Multi-Color Electroluminescent Devices Utilizing SrS:Pr, Ce Phosphor Layers and Color Filters
A new phosphor material, SrS doped with both Pr and Ce, with bright white emission was proposed for an application to multi-color thin film electroluminescent (TFEL) devices. Spectral changes by varying a conc...
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Chapter and Conference Paper
Local-Spin-Density-Functional Approach to High-Tc Copper Oxides
A state-of-the-art total-energy band-structure calculation within the local-spin-density-functional formalism has been performed for the high-Tc copper oxides, (La1-xSrx)2CuO4. It is shown that the local-spin-den...
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Chapter and Conference Paper
Superlocalization of Fractons: Direct Observation by Supercomputer
Evidence is given for the superlocalization of fracton wave-functions excited on two-dimensional percolating networks. It is shown that fractons are superlocalized as exp[−(r/ Λ (ω))d φ], where th...
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Chapter and Conference Paper
Optimization of Stable a-SiC/a-Si Tandem Solar Cell with Blocking Barriers
Recently, we have developed a very stable a-SiC/a-Si heterojunction solar cell with blocking barriers. The structure of the cell is one of multi-junction types with blocking barriers for the dopants and metal ...
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Chapter and Conference Paper
Interaction Between Phonons and 3He-Quasiparticles in the 3He–4He Mixture Confined in Porous Media
The problem of liquid or solid He in restricted geometry has recently been a subject of extensive studies both theoretically and experimentally[1]. It is expected that the dilute 3He–4He mixture confined in porou...
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Chapter and Conference Paper
Dam** of Phonons by Metal Particles Embedded in an Insulating Matrix
The energy spectrum of electrons confined to small region in space becomes discrete due to the quantum-size effect[1]. The problem associated with the observation of such features has been receiving considerab...
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Chapter and Conference Paper
Results of Percutaneous External Drainage
We have been performing percutaneous transhepatic biliary drainage (PTBD) by various methods since 1965. By 1974, we had established roentgenographically guided PTBD using the movable, J-type guide wire accord...
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Chapter and Conference Paper
Thermal Boundary Resistance Between Small Particles and Liquid He-3
A review is presented of the current status of investigations on the anomalous thermal resistance of the boundary between small particles and liquid He-3 observed at temperatures below about 10 mK.
