A5016825995- Advanced MIMO Systems Optimization
- Coronary Interventions and Diagnostics
- Satellite Communication Systems
- Wireless Communication Networks Research
- Chronic Kidney Disease and Diabetes
- Advanced Wireless Communication Techniques
- Cardiac Imaging and Diagnostics
- UAV Applications and Optimization
- Telecommunications and Broadcasting Technologies
- PAPR reduction in OFDM
- Parathyroid Disorders and Treatments
- Antenna Design and Analysis
- Advanced Power Amplifier Design
- Lipoproteins and Cardiovascular Health
- Nutrition and Health in Aging
- Fuel Cells and Related Materials
- Heart Rate Variability and Autonomic Control
- Cardiac Valve Diseases and Treatments
- Advanced Wireless Network Optimization
- Cardiovascular Disease and Adiposity
- Dialysis and Renal Disease Management
- Electrocatalysts for Energy Conversion
- Non-Invasive Vital Sign Monitoring
- Semiconductor Lasers and Optical Devices
- Optical Network Technologies
SoftBank Group (Japan)
2019-2024
Keio University
2014-2024
Kobe University Hospital
2024
Shimane University Hospital
2023
University of Oxford
2023
Nagoya University
1963-2018
Japanese Red Cross Nagoya Daiichi Hospital
2018
Yoshino Kogyosho (Japan)
2015
Ogaki Municipal Hospital
2015
Institute of Cardiology
2015
High-altitude platform stations (HAPSs) are expected to provide ultrawide-coverage areas and disaster-resilient networks from the stratosphere at around 20 km by installing wireless equipment on HAPS. Because their altitude is much lower than that of communications satellites, HAPSs can mobile services directly smartphones, which commonly used in terrestrial networks, such as fourth generation Long Term Evolution. Considering widespread nature broadband importance a backup line case...
Partially oxidized has been investigated as a cathode for polymer electrolyte fuel cells (PEFCs). Catalytic activity the oxygen reduction reaction (ORR) significantly depends on oxidation state of . and had poor catalytic ORR. The onset potential partially ORR maximum value 0.83 V vs reversible hydrogen electrode in at X-ray diffraction analysis showed that specimens, which definite ORR, both peaks. This result indicated an appropriate was essential to enhance
A High-Altitude Platform Station (HAPS), which provides communications services from an altitude of 20 km by using Unmanned Aerial Vehicle (UAV) such as a balloon, airship, or other aircraft, is attracting much attention new mobile platform for ultra-wide coverage area and disaster-resilient networks. HAPS can provide directly to smartphones, are commonly used in terrestrial networks with Fourth Generation Long Term Evolution (4G LTE), the near future, Fifth New Radio (5G NR). To achieve...
Abstract In order to commercialize polymer electrolyte fuel cells (PEFCs) widely, partially oxidized transition-metal carbide–nitride (TM-C–N; TM = Ti, Zr, and Ta) have been investigated as new cathodes without platinum. The specimens were prepared by the electrophoretic deposition of on titanium plate heat-treated at 1000 °C under flowing 2%-H2/N2 gas containing ca. 0.25% oxygen. Partially Ta-based catalysts had highest catalytic activity, followed Ti- Zr-based catalysts.
The catalytic activity for the oxygen reduction reaction (ORR) of , which was prepared by electrophoretic deposition and heat treatment in temperature range from 700 to under flowing containing 0.1% oxygen, investigated. solubility powder heat-treated at less than atmospheric conditions. This shows that had a high chemical stability an acid solution. ORR significantly depended on heat-treatment temperature, showed highest activity.
Background: The objective of this study was to determine whether pre‐operative heart rate variability (HRV) estimated using the newly developed MemCalc method predicts hypotension after spinal anaesthesia (SA). Method: Fifty‐two patients with American Society Anesthesiologists physical status I or II, aged 38–84 years, scheduled undergo elective transurethral surgery were investigated in study. Ultra short‐term entropy (UsEn) as a non‐linear index HRV before and SA method. then assigned two...
Background:Vascular calcification is a major complication in chronic kidney disease (CKD) that increases the risk of adverse clinical outcomes. Geriatric nutritional index (GNRI) simple assessment tool predicts poor prognosis elderly subjects. The purpose present study was to evaluate correlation between GNRI and severity vascular non-dialyzed CKD patients.
Aim Malnutrition is associated with the development of atherosclerosis and an increased risk cardiovascular mortality in elderly patients. The present study aimed to investigate association between Geriatric Nutritional Risk Index (GNRI), a simple nutritional assessment tool, prevalence peripheral artery disease (PAD) coronary Methods We evaluated 228 patients (mean age 74.0 ± 5.7 years). Ankle‐brachial index (ABI) measurements were routinely carried out lower extremity PAD. Patients showing...
The use of nonflammable electrolytes containing a solvent that includes alkyl fluoride groups to improve the safety lithium-ion cells has been investigated. positive electrodes comprise mixture multi-component transition metal oxide and polyanionic compound. nonflammability electrolyte is shown by adding 30 vol% phosphate solution base electrolyte. It observed cycle-life performances with at 45°C are higher than cell
High altitude platform stations are attracting much attention as novel mobile communication platforms for ultra-wide coverage areas and disaster-resilient networks. Multi-cell configurations can increase capacity in a wide area. Conventional work optimizes the cell configuration multi-cell based on genetic algorithm (GA). This method identifies an optimal terms of spectral efficiency depending number cells under uniform user distribution. However, distributions differ location; thus,...
Background:Antiplatelet therapy (APT) after percutaneous coronary intervention (PCI) prevents ischemic events with increased risk of bleeding. Little is known about the relationship between hypoalbuminemia and bleeding in patients receiving APT PCI. This study investigated association serum albumin level this population.
High-Altitude Platform Station (HAPS) is a new mobile communication platform, which can provide services such as Long Term Evolution (LTE) or 5th Generation New Radio (5G NR) from stratosphere to terrestrial User Equipments (UEs) directly by utilizing aerial vehicles balloon, airplane airship with radio equipment at the altitude of 20km. It has been attracting much attention for its ultra-wide coverage wide 50km 100km in radius and disaster-resilient networks. The service area HAPS overlaps...
With the increase in population of elderly, a technique for monitoring them is receiving more and attention all over world. In particular, it highly demanded to develop system that detects fainting elderly toilet, since such an accident likely get worse due late detection. this paper, we propose anomaly detection method toilet using FMCW(Frequency Modulated Continuous Wave) radar, which can measure distance between object FMCW radar. As anomalies, determine as situations where subject faints...
Bilirubin protects against oxidative stress-mediated diseases, especially atherosclerotic diseases. On the other hand, subjects with carotid atherosclerosis have a high incidence of adverse cardiovascular events. The aim this study was to evaluate possible relationship between serum bilirubin levels and in patients coronary artery disease (CAD). We evaluated total 394 chronic CAD, defined as stable angina pectoris or previous myocardial infarction. They were divided into four groups...