A5029890303- Hydrocarbon exploration and reservoir analysis
- Geological Studies and Exploration
- Advanced Neuroimaging Techniques and Applications
- Speech and dialogue systems
- Fetal and Pediatric Neurological Disorders
- Photonic and Optical Devices
- Geochemistry and Geologic Mapping
- Hydraulic Fracturing and Reservoir Analysis
- Virtual Reality Applications and Impacts
- Quantum Information and Cryptography
- Semantic Web and Ontologies
- Neural Networks and Applications
- Advanced machining processes and optimization
- Aerodynamics and Acoustics in Jet Flows
- Fluid Dynamics and Turbulent Flows
- Hand Gesture Recognition Systems
- Tactile and Sensory Interactions
- Natural Language Processing Techniques
- Engineering Applied Research
- Cardiovascular Health and Disease Prevention
- Advanced MRI Techniques and Applications
- Social Policy and Reform Studies
- VLSI and FPGA Design Techniques
- Injection Molding Process and Properties
- Optimization and Packing Problems
Chuo University
2017-2023
Juntendo University
2020-2022
University of Malta
2021
Canon Medical Systems Corporation (Japan)
2019
Canon (Japan)
2019
University of Tsukuba
2015-2016
Okayama University
2009
Sumitomo Heavy Industries (Japan)
2005-2008
Iwate University
2004-2006
Hitachi (Japan)
1986-2006
White matter bundle segmentation using diffusion MRI fiber tractography has become the method of choice to identify white pathways in vivo human brains. However, like other analyses complex data, there is considerable variability protocols and techniques. This can result different reconstructions same intended pathways, which directly affects results, quantification, interpretation. In this study, we aim evaluate quantify that arises from for segmentation. Through an open call users...
Abstract Artificial neural networks have capacity to learn and store information about process faults via associative memory, thus an diagnostic ability with respect that occur in a process. Knowledge of the be learned by network evolves from sets data, namely values steady‐state variables collected under normal operating condition those faulty conditions, together degree their causes. Here, we describe how apply artificial fault diagnosis. A suitable two‐stage multilayer is proposed as used...
Abstract Purpose The reproducibility of neurite orientation dispersion and density imaging (NODDI) metrics in the human brain has not been explored across different magnetic resonance (MR) scanners from vendors. This study aimed to evaluate scan–rescan inter-vendor NODDI white gray matter healthy subjects using two 3-T MR Methods Ten (7 males; mean age 30 ± 7 years, range 23–37 years) were included study. Whole-brain diffusion-weighted was performed with b-values 1000 2000 s/mm 2 Automatic...
Abstract White matter bundle segmentation using diffusion MRI fiber tractography has become the method of choice to identify white pathways in vivo human brains. However, like other analyses complex data, there is considerable variability protocols and techniques. This can result different reconstructions same intended pathways, which directly affects results, quantification, interpretation. In this study, we aim evaluate quantify that arises from for segmentation. Through an open call users...
Impulse control behaviors (ICBs) in Parkinson's disease (PD) are thought to be caused by an overdose of dopaminergic therapy the relatively spared ventral striatum, or hypersensitivity this region dopamine. Alterations brain networks now also contribute development ICBs.To comprehensively assess white matter microstructures PD patients with ICBs using advanced diffusion MRI and magnetization transfer saturation (MT-sat) imaging.This study included 19 (PD-ICBs), 18 without (PD-nICBs), 20...
This paper presents a disambiguation approach for translating non-segmented-Kana into Kanji. The method consists of two steps. In the first step, an input sentence is analyzed morphologically and ambiguous morphemes are stored in network form. second best path, which string morphemes, selected by syntactic semantic analysis based on case grammar. order to avoid combinatorial explosion possible paths, following heuristic search adopted. First, path that contains smallest number...
<h3>BACKGROUND AND PURPOSE:</h3> Arterial stiffness is reported to be able cause axonal demyelination or degeneration. The present study aimed use advanced MR imaging techniques examine the effect of arterial on WM microstructure among older adults. <h3>MATERIALS METHODS:</h3> was measured using cardio-ankle vascular elasticity index (CAVI). high-CAVI (mean CAVI ≥ 9 points) and low-CAVI groups < were created. neuronal fiber integrity evaluated by neurite orientation dispersion density...
A MEMS-based optical surge suppressor is proposed. The device consists of MEMS-shutter and photovoltaic detector that triggers the shutter through in-line monitoring light around power level 10dBm with insertion loss 1.5dB.
This study aimed to use advanced MRI techniques investigate the effect of arterial stiffness on white matter (WM) microstructure among older adults. Arterial was examined using cardio-ankle vascular elasticity index (CAVI). The high-CAVI group (mean CAVI ≥ 9 points) and low-CAVI < were used. neuronal fiber integrity WM assessed by neurite orientation dispersion, density imaging, magnetization transfer-saturation imaging. Our results suggest that may be related demyelination rather than...
As a model of the coherent structure, an artificial horseshoe vortex was induced by injecting pair small pulsative jets into bottom fully developed turbulent boundary layer from flat plate beneath. After initial growth, had configuration similar to that natural bulge and broken up single manipulator installed parallel flow direction in layer. The ensemble-averaged data, conditionally sampled on injection jets, gave velocity vector fields shear stress contour maps around nonmanipulated...
Abstract The prototype sign language translation system described herein interprets Japanese to verbal language. Since has a unique morphology and syntax, the requires linguistic after recognition of input symbols. One main difficulties in is result insufficiency syntactic markers information. In language, represented as sequence important words. our method, semantic dependency analysis based on case frame grammar carried out complement lack information such postpositions. Then, rule‐based...
To work smoothly in a virtual space, it is necessary to recognize the space exactly and interact 3D information intuitively. In this study, we created VR game environment that integrated stereoscopic vision based on binocular parallax by HMD with body motion measurement range image sensor. Also, enhance immersion operation feeling, presented tactile using vibro globe verified usefulness of real-scale motions, information. From results experiments, could confirm motions are useful created,...
With the purpose for explotation of petroleum and knowledge on geological structure Tertiary rocks lying below Chokai volcano its detritus in region bordering both Akita Yamagata Prefectures, writers made observations during sammer 1951. As a result, five formations were recognized; these ascending order are the, Nikko, Nadakayama, Harigaoka, Uguisugawa Nigorikawa formations. These thought to correspond so-called Green tuff authors, Onnagawa shale-, Funakawa Nomura grey shale Wakimoto...
Tohoku Electric Power Company, Inc. (Tohoku-EPCO) has been adopting cutting-edge gas turbines for turbine combined cycle (GTCC) power plants to contribute reduction of energy consumption, and making a continuous effort study the next generation further improve GTCC efficiency flexibility. Tohoku-EPCO Mitsubishi Hitachi Systems, Ltd (MHPS) developed “forced air cooling system” as brand-new combustor system in collaborative project. The forced can be applied with inlet temperature (TIT)...
A 45-year-old man with a rapidly deteriorating heart condition died suddenly, two hours after admission, resistance to attempts of cardiac pacing. At autopsy, the weighed 600g asymmetric septal hypertrophy. Histological examination revealed an extensive and diffuse disarray myocardial fibers in ventricular septum free wall both ventricles. Pronounced mononuclear cell infiltrations interstitial edema were distributed widely There few abnormal findings other organs. The diagnosis was...
We present a new application of qualitative reasoning to design: suggesting valid ranges for design parameters after the structure has been determined. This step is implemented by using an envisioning mechanism that uses determine all possible behaviors system. Our method finds with whose values are initially indeterminate and whatever specifications designer has. If several found, selects ones he prefers. The design-support system Desq (design support based on reasoning) earlier Qupras...
In this paper, we analyze Hopfield neural networks (HNN) using eigenvalues of the connection matrix. The result makes clear that a well-tuned HNN always converges to certain solution. Although solution is good enough for most problems, there are some "deceptive" problems whose optimal solutions far from those obtained by ordinary HNN. Next, dynamics HNN, and show two deceiving phases in these deceptive problems. After that, propose modified method deal with constraint conditions. This...