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Mastication is one of the most important oral functions, and the period during which mastication is acquired overlaps with the term of rapid development and maturation of the neural systems. In particular, the acquisition period after weaning is related to the potential onset of mental disorders. However, the roles of mastication during this period for brain development remain largely unknown. Therefore,...
In interfering femtosecond laser processing, an interference pattern is transferred to material surface, and matrix with a certain unit structure can be generated in a single shot of laser irradiation. So, a metamaterial consist of meta-atoms can be fabricated by metallic thin film processing. The structure of it can be designed by controlling the phase shift and variation of amplitude between interfering...
Ein 76-jähriger Patient in gutem Allgemeinzustand stellte sich mit seit 2 Jahren bestehender Schwellung beidseits submandibulär sowie einer Makroglossie vor. Die klinische Untersuchung ergab keine weiteren Auffälligkeiten. Auf der Blickdiagnose fußend, ergab die histopathologische Untersuchung einer Probeexzision der Zunge eine interstitielle Amyloidose, die Immunfixation des Serums zeigte als Ursache...
A flat type image sensor consisting of a field emitter array (FEA) and a high-gain avalanche rushing amorphous photoconductor (HARP) target is developed as the low light imaging compact camera. In this paper, the structure and fundamental characteristics of a prototype 2/3-inch HEED-HARP image sensor are described.
The purpose of this study is to develop a dry process for minute wiring or interconnections without any wet process such as chemical etching and electroplating. The process is based on the use of metal nanoparticles and their metallization by laser sintering, which will bring a desktop manufacturing of electronic circuits in view. The present paper investigates the influence of wavelength on laser...
A novel coating technology by means of sintering the silver NanoPastereg by a laser beam has been proposed. The novelty lies in the use of a conventional NdYAG laser to metalize nanoparticles as an alternative to furnace sintering. Silver nanoparticles with 5 nm in average diameter dispersed in the the silver NanoPaste are successfully sintered on the Cu substrate by the proposed method. Laser sintering...
In order to establish technology of packaging electronic modules, we investigated conditions for laser sintering of Ag nanoparticles, and evaluated characteristics of the sintered film. First, we plotted minute patterns on a copper substrate by ink-jet printing, and then employed an NdYAG laser to metalize the nanopaste in a short time. The Ag nanoparticles (5 nm in average diameter) dispersed in...
In this paper, an active-matrix planar-type cold electron emitter array development is studied to fulfill the requirement of high-speed response. This emitter array adopts a novel MIS emitter which is termed HEED (High-efficiency Electron Emission Device) and fabricated on a MOS transistor array formed on a silicon wafer with scan driver circuits. HEED's driving voltage is relatively low (about 20V)...
For practical advantages of the HEED (high-efficiency electron emission device) such as a low driving voltage, a high emission current density, especially application to an ultra high sensitive compact image sensor can be expected. A prototype active-matrix HEED image sensor integrated with scanning driver circuits was developed with a HARP (high-gain avalanche rushing amorphous photoconductor) target...
An active-matrix planar-type cold electron emitter array for application to high-sensitivity image sensors have been developed. A 640times480 pixel active-matrix HEED (high-efficiency electron emission device) with 20times20 mum pixels was fabricated, and the emission current density of 1 A/cm2 has been obtained at an applied voltage of 23 V. Further studies toward the next generation image sensor...
Current micro-fabrication technologies, such as semiconductor manufacturing have many problems such as complex process flow, huge consumption of natural resources and large load on the environment. Furthermore, they also require huge amount of equipment investment. The ink-jet printing (UP) technology which allocates only the necessary amount of materials to the location where needed, is a one of...
AbstractPurpose: MS-247 is a novel synthetic compound possessing a DNA-binding moiety and a DNA-alkylating residue, chlorambucil. In this study, we evaluated the antitumor activity of MS-247 against murine tumor cell lines and its effects on DNA molecules in both cell-free and cellular systems. Methods: The in vitro cytotoxic activity of MS-247 was evaluated against four murine tumor cell lines, P388,...
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