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Article
Open AccessEffectiveness of tuning an artificial intelligence algorithm for cerebral aneurysm diagnosis: a study of 10,000 consecutive cases
Diagnostic image analysis for unruptured cerebral aneurysms using artificial intelligence has a very high sensitivity. However, further improvement is needed because of a relatively high number of false positi...
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Article
Open AccessDensification in transparent SiO2 glasses prepared by spark plasma sintering
Recently, spark plasma sintering (SPS) has become an attractive method for the preparation of solid-state ceramics. As SPS is a pressure-assisted low-temperature process, it is important to examine the effects...
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Article
Dural sac shrinkage signs on magnetic resonance imaging at the thoracic level in spontaneous intracranial hypotension—its clinical significance
Spontaneous intracranial hypotension (SIH) is secondary to a cerebrospinal fluid leak at the spinal level without obvious causative events. Several signs on brain and cervical spine magnetic resonance (MR) ima...
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Article
Open AccessPublisher Correction: Low melting oxide glasses prepared at a melt temperature of 500 °C
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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Article
Open AccessLow melting oxide glasses prepared at a melt temperature of 500 °C
Transparent low-melting inorganic glass is an attractive industrial material based on its high thermal and light resistance compared with conventional engineering plastics. If the melting temperature of inorga...
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Chapter and Conference Paper
Management of Intraventricular Hemorrhage in Preterm Infants with Low Birth Weight
The management of posthemorrhagic hydrocephalus is difficult and not well standardized. We evaluated our management protocol for infants with intraventricular and/or periventricular hemorrhage (IVH and PVH, re...
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Article
Coordination structure of implanted manganese ions in silica glass
180 keV Mn+ ions were implanted in silica glass at doses ranging from 1×1016 to 2×1017 ions/cm2 at room temperature. The coordination structure of implanted Mn atoms was studied by X-ray absorption spectroscopy. ...
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Article
Development of a desktop swarm robot system based on pheromone communication
Complex and adaptive population behavior emerges in social insects. In ants, in particular, pheromone communication is the key to understanding their swarm intelligence. This article proposes a swarm robot sys...
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Article
Pentalogy of Cantrell with a double-outlet right ventricle: 3.5-year follow-up in a prenatally diagnosed patient
Pentalogy of Cantrell is a rare congenital defect associated with five ventral midline anomalies and high mortality. An obstetric sonogram revealed a fetus with a body wall defect suggesting a diagnosis of thi...
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Article
Structure of Cu Ions in (Cu + Halogen or Chalcogen)-Ion Implanted Silica Glasses
Structure of Cu ions in (Cl+Cu)-, (Br+Cu)-, (I+Cu)-, (S+Cu)- and (Se+Cu)-ion implanted silica glasses has been studied by x-ray absorption and optical absorption spectroscopies. Cu ions formed Cu-O bonds in th...
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Article
X-ray absorption fine structure study on the formation of Cu–Br bonds in (Br + Cu) ion implanted silica glass
The valence and coordination structure of implanted Cu and Br ions were investigated by x-ray absorption fine structure spectroscopy in (2.4 MeV 6 × 1016 Br2+ ions cm−2+ 2 MeV 6 × 1016 Cu+ ions cm−2)-implanted si...
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Article
Coordination structures of implanted Fe, Co, and Ni ions in silica glass by x-ray absorption fine structure spectroscopy
Coordination structures of implanted Fe, Co, and Ni ions were studied in 1.78–2.00-MeV 5 × 1016 ions/cm2-implanted silica glasses by x-ray absorption and optical absorption spectroscopies. It was found from x-ray...
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Article
Structural Relaxation of Densified Silica Glass by Thermal Annealing
Thermal relaxation of glass structure has been studied on silica glasses densified by hot isostatic pressing. Density of the glasses relaxed toward the value of an undensified glass by thermal annealing. Relax...
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Chapter and Conference Paper
Density and Refractive Index of Densified Silica Glass
Silica glasses with the OH content about 1200ppm and 100ppm have been densified with a HIP apparatus at temperatures of 1000-1300°C under pressures of 100-200MPa for 2 hours. The density of both glasses increa...
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Article
Densification of Glass by HIP
Densification of glass under high pressure and high temperature are shortly reviewed from the points of view of glass structure and densification mechanism. Some of characteristic properties of the densified s...
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Article
X-Ray Induced Optical Absorption in Densified Silica Glass in the UV Region
X-ray induced optical absorption has been studied on silica glasses densified by hot isostatic pressing. Density of the glass increases up to about 1% in proportion to the operating pressure. Two main absorpti...
