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Article
Investigation of the redox state of magnetite upon Aβ-fibril formation or proton irradiation; implication of iron redox inactivation and β-amyloidolysis
In in vitro separate compartment model of neuronal cells and extracellular iron oxide nanoparticles (IONs)—amyloid complexes, a traversing proton-induced Coulomb nanoradiator effect (CNR) was found to break up...
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Chapter and Conference Paper
Multi-Pinhole Based X-Ray Fluorescence Computed Tomography: A Comparison with Single Pinhole Case
An x-ray fluorescence computed tomography using a pinhole collimator (p-XFCT) for medical use depicts the 3-D distribution of imaging agent by collecting the x-ray fluorescence photons emitted from the imaging...
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Article
Open AccessCoulomb nanoradiator-mediated, site-specific thrombolytic proton treatment with a traversing pristine Bragg peak
Traversing proton beam-irradiated, mid/high-Z nanoparticles produce site-specific enhancement of X-ray photon-electron emission via the Coulomb nanoradiator (CNR) effect, resulting in a nano- to micro-scale th...
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Article
Wave propagation simulation based on the Fourier diffraction integral for X-ray refraction contrast imaging-computed tomography
With the advent of coherent X-ray sources, X-ray refraction has begun to be utilized for X-ray imaging of unprecedented sensitivity. The aim of this study was to develop a wave propagation simulator that provi...
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Article
Enhanced production of reactive oxygen species by gadolinium oxide nanoparticles under core–inner-shell excitation by proton or monochromatic X-ray irradiation: implication of the contribution from the interatomic de-excitation-mediated nanoradiator effect to dose enhancement
Core–inner-valence ionization of high-Z nanoparticle atomic clusters can de-excite electrons through various interatomic de-excitation processes, thereby leading to the ionization of both directly exposed ato...
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Article
Open AccessPhoton activated therapy (PAT) using monochromatic Synchrotron x-rays and iron oxide nanoparticles in a mouse tumor model: feasibility study of PAT for the treatment of superficial malignancy
X-rays are known to interact with metallic nanoparticles, producing photoelectric species as radiosensitizing effects, and have been exploited in vivo mainly with gold nanoparticles. The purpose of this study was...
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Article
A gel-forming poly-l-guluronic acid produced from no guluronate-rich marine algae using new hydrolysis method: test for endovascular embolization
To prepare a gel-forming poly-l-guluronic acid (Poly-G) from no guluronate-rich Laminaria japonica, a new hydrolysis method was employed with a lower HCl concentration (0.025–0.15 M) and a shorter treatment time ...
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Chapter and Conference Paper
On Multicast Routing Based on Route Optimization in Network Mobility
Mobile IP (MIP) is designed for supporting mobile nodes. However, the technology does not sufficiently handle NEtwork MObility (NEMO). The NEMO Basic Support (NBS) [1] ensures session continuity for all the nodes...
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Article
Gadolinium-chlorin is potentially a new tumor specific MRI contrast agent
In this study, a newly-synthesized metalloporphyrin, Gd-chlorin (PB Chlorin), was investigated by using a simple tissue phantom to test its efficacy as an MRI contrast, agent. This study demonstrated the poten...
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Article
Relation between pressure variations and noise in axial type oil piston pumps
Pressure variation is one of the major sources on noise emission in the axial type oil piston pumps. Therefore, it is necessary that the pressure variation characteristics of the oil hydraulic piston pumps be ...
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Article
Driving mechanism of tapered pistons in bent-axis design axial piston pumps
In order to assure the quality of the bent axis design axial piston pumps driven by tapered pistons, it is necessary to know the characteristics of force applied to tapered pistons and the mechanism for drivin...
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Article
Measurement of fluid film thickness on the valve plate in oil hydraulic axial piston pumps (I)-bearing pad effects-
The tribological mechanism between the valve plate and the cylinder block in oil hydraulic axial piston pumps plays an important role on high power density. In this study, the fluid film thickness between the ...
