A5002427365- Photonic and Optical Devices
- Semiconductor Lasers and Optical Devices
- Optical Network Technologies
- Advanced Photonic Communication Systems
- Advanced Fiber Optic Sensors
- Photonic Crystals and Applications
- Acoustic Wave Resonator Technologies
- Nanofabrication and Lithography Techniques
- Olfactory and Sensory Function Studies
- Advanced Vision and Imaging
- Neurobiology and Insect Physiology Research
- Diabetes Management and Research
- Video Coding and Compression Technologies
- Ferroelectric and Piezoelectric Materials
- Botulinum Toxin and Related Neurological Disorders
- Helicobacter pylori-related gastroenterology studies
- Fern and Epiphyte Biology
- Gastroesophageal reflux and treatments
- Diabetes and associated disorders
- Sympathectomy and Hyperhidrosis Treatments
- Cholinesterase and Neurodegenerative Diseases
- Advanced Image Processing Techniques
- Neurological disorders and treatments
- Corrosion Behavior and Inhibition
- Polyamine Metabolism and Applications
Photonics Electronics Technology Research Association
2017-2023
Petra University
2022
University of Suwon
2020
National Institute of Advanced Industrial Science and Technology
2020
Fujitsu (Japan)
2005-2018
Tohoku University
1951-2017
Toneyama National Hospital
2013
The University of Tokyo
1993-2006
Tokyo University of Science
2005-2006
Saiseikai Fukuoka General Hospital
2005
Recent studies have revealed that vascular cells can produce reactive oxygen species (ROS) through NAD(P)H oxidase, which may be involved in injury. However, the pathological role of oxidase diabetes or insulin-resistant state remains unknown. In this study, we examined effect high glucose level and free fatty acid (FFA) (palmitate) on ROS production cultured aortic smooth muscle (SMCs) endothelial (ECs) using electron spin resonance spectroscopy. Exposure SMCs ECs to a (400 mg/dl) for 72 h...
Abstract Thiosulfate ion was used as a substitute for hydrogen sulfide (H2S) to simulate stress corrosion cracking (SCC) of corrosion-resistant alloys (CRAs) and (SSC) high-strength, low-alloy steels. Several SCC tests using variety application techniques showed the brine containing thiosulfate exhibited similar severity H2S in regard when plastic strain applied CRAs. Materials that susceptibility agreed well those H2S. Types 304 (UNS S30400) 316L S31603) stainless steels duplex steel both...
A highly power-efficient silicon (Si) photonic PAM4 transmitter was developed by integrating a Si segmented Mach- Zehnder modulator and CMOS driver chip. p-i-n-type phase shifters are directly driven with inverter array to realize low power operation. passive RC equalizing technique adopted extend the modulation bandwidth up 20 GHz while maintaining consumption. By filter within photonics chip, we achieved very compact foot print for (450 × 950 μm). The fabricated exhibited VπL of 0.19 V·cm...
We successfully developed a high-density broadband 16-channel × 25 Gb/s on-package silicon photonics optical transceiver. The flip chip bonded bridge structure realized high density of about 363 Gb/s/cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . demonstrated simultaneously on all 16 channels error-free operations with low crosstalk penalties Tx-to-Tx 1.4 dB, Rx-to-Rx and Tx-to-Rx <;0.1 dB.
A 1.296-to-5.184 Gb/s transceiver with 2.4 mW/(Gb/s) burst-mode CDR using a dual-edge injection-locked oscillator is fabricated in 40 nm CMOS. The chip operates over range of 1.296 to 5.184 Gb/s. proposed locks less than 20b and features continuous-rate capability, twice the power efficiency previously reported CDRs.
We proposed novel 16λ demultiplexer based on cascaded connection of silicon-nanowire waveguide type delayed interferometric filters and arrayed gratings, experimentally verified 100-GHz-spaced bandpass filtering operation with nearly identical insertion loss (<; 6 dB) low crosstalk -19.5 dB to <; -34.6 for a single channel, -12.7 entire output channels). also demonstrated polarization diversified 32 Gbps non-return-to-zero (NRZ) signal transmissions in C-band range. the 140-GHz-spaced O-band spectral
Here we report a novel approach to fabricating patterned three-dimensional (3D) mesoporous thin films by spin coating surfactant-templated SiO2 or TiO2 precursor solution onto electron-beam (EB) lithographically prepared resist moulds. Subsequent mechanical polishing and calcination led with uniform mesopores an amorphous nanocrystalline framework. This provides route for patterning non-siliceous as well silica feature sizes from hundreds of nanometres sub-millimetres over areas several...
We propose silicon (Si)-photonics-embedded interposers as a novel packaging platform to achieve co-packaged optics. An interposer is an organic substrate that has Si-photonics transceiver dies buried in it and polymer optical waveguides connecting the embedded Si chips connectors. also developed Si-photonics-device-embedding process investigated properties operations of devices feasibility study. The arrayed waveguide grating reflective filter showed wavelength shift on order 0.1 nm with our...
We developed optical interconnect technologies, i.e., an mid-plane, high-density connector, and a compact transceiver for future servers that enable high-bandwidth dense integration. Using these 1500 connections 37.5 Tb/s of bandwidth were built in blade-server form factor.
We describe an interconnect architecture that utilizes high bandwidth optical mid-plane. Enabling technologies for density mid-plane are discussed. developed a prototype to determine the feasibility. The results showed proposed is practical.
It is established that disproportionately elevated plasma proinsulin levels occur in patients with Type 2 diabetes. In the present study, multivariate analysis was performed to determine what factors contributed Japanese diabetes (n=276). Results from univariate showed both fasting proinsulin/C-peptide ratio and proinsulin/IRI were approximately 2-fold higher than those healthy nondiabetic subjects (n=45). diabetes, significantly positively correlated glucose level (FPG) HbA1c. Neither nor...
Injection force requirements for four insulin pen-type injection devices were evaluated using the AGS-IkNG Autograph measurement device (Shimadzu Corp., Kyoto, Japan).Compared with Humulin Pen (the Japanese brand name is Humacart kit; same as Humalog Pen; Eli Lilly, Indianapolis, IN), HumaPen Ergo (Eli Lilly), and NovoPen 3 (Novo Nordisk A/S, Bagsvaerd, Denmark), InnoLet(Novo Nordisk) required lowest to both initiate piston movement commence delivery overall throughout delivery. InnoLet...
Frame rate conversion is effective to solve degradation of motion picture quality at liquid crystal display. It also useful for low video signal such as movie. In case conversion, basic compensation causes gap covered area and uncovered area. To avoid the gap, we propose centered position target. Fully compensated interpolation possible in this method. realize this, error normalizing by block activity used estimation. We adaptive using four frames. Finally, compare original with interpolated...
Arrays of lead lanthanum zirconate titanate pillars were fabricated on niobium-doped (001) strontium substrates using a chemical solution deposition method with resist molds. Periodic arrays submicron ferroelectric high crystallinity are required to produce high-quality tunable photonic-crystal devices. The relationship between the and width was investigated. highest obtained at 0.67μm. All exhibited strain. Since this is in order that optical wavelengths, process periodic structures...
We successfully developed a high density broadband 16-channel × 25 Gb/s silicon photonics optical transceiver. The flip chip bonded structure realized the of about 363 Gb/s/cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . demonstrated simultaneous multichannel error free operations with low crosstalk penalties.
Anatomical knowledge of the duodenojejunal flexure is necessary for abdominal surgeries, and also important physiologic studies about duodenum. But little known anatomy this region in mammals. Here, we examined comparative to understand anatomical formation mammals.The areas around duonenojejunal were ob-served mouse, rat, dog, pig, human, structures junction animals compared with those human.The superior inferior duodenal folds, fossae identified all humans. In not clearly because duodenum...