A5103266679- Advanced DC-DC Converters
- Wireless Power Transfer Systems
- Energy Harvesting in Wireless Networks
- Multilevel Inverters and Converters
- Induction Heating and Inverter Technology
- Advanced Power Amplifier Design
- Silicon Carbide Semiconductor Technologies
- Advanced machining processes and optimization
- Microgrid Control and Optimization
- Advanced Battery Technologies Research
- Hemoglobin structure and function
- Electric Motor Design and Analysis
- Pancreatic and Hepatic Oncology Research
- Organ Transplantation Techniques and Outcomes
- Tunneling and Rock Mechanics
- Gastrointestinal disorders and treatments
- Kidney Stones and Urolithiasis Treatments
- Biliary and Gastrointestinal Fistulas
- Electric and Hybrid Vehicle Technologies
- Liver Disease Diagnosis and Treatment
- Pancreatic function and diabetes
- Sarcoma Diagnosis and Treatment
- Gastric Cancer Management and Outcomes
- GaN-based semiconductor devices and materials
- Metallurgy and Material Forming
Omron (Japan)
2018-2024
National Archives and Records Administration
2022
TDK (Japan)
2003-2009
Kyushu University
2003
Toyota Industries (Japan)
1995-2002
Nippon Electric Glass (Japan)
2002
Toyama Prefectural University
1991-1999
Chiba University
1984-1998
National Institute of Technology, Toyama College
1986
Kyoto University
1973
The immunosuppressive activities of a newly discovered macrolide extracted from Streptomyces tsukubaensis, FK506, were examined using 38 renal allografts in the beagle dog. median survival time was 15.5 days dogs without treatment, 61 with dose 0.08 mg/kg/day and 176 0.16 intramuscularly administered FK506. Prolongation statistically significant when compared controls (P = 0.02, 0.0044, respectively). None 6 recipient receiving agent at encountered rejection during treatment course. Three...
This paper presents an analysis and design of the load-independent (LI) high-frequency magnetic resonant wireless power transfer (MR-WPT) system with robustness against load variations coil misalignments. It is clarified from that misalignment can be obtained when LI inverter, series-resonant to (S-S) coupling topology, input-reactance invariant rectifier variations, post regulator are adopted. The output reactance transmitter does not vary misalignment. Therefore, inverter works mode,...
Low cost, high reliability, and competitive weight efficiency combine to make the switched reluctance (SR) motor drive a strong candidate for application in future electric vehicle (EV) propulsion systems. This paper presents methods results of prototype SR design study. Finite element analysis transient simulation predict performance, efficiency, that are with existing EV systems, which have been tested compact automobiles small trucks.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML"...
To improve the performance of a UPS, one must consider not only its but also size and cost. Basic components UPS are power circuit, an operation controller user interface. The purpose this paper is to investigate improvement circuit then realize high in trial product.
The power efficiency of a three-arm-type UPS has been examined. In this configuration, the center arm, called "common arm", operates in both PWM rectifier mode and inverter mode. paper, basic steady-state analysis analytical considerations on loss are described, these confirmed by experiments.
This paper presents a new design approach for the soft-switching resonant converter with satisfying multiple conditions. As an example, FM controlled class-E is designed. By applying inverter at part, works high efficiency frequencies. The has, however, problems, which are peak value of switch voltage and difficulty zero-voltage switching continuation against load variations. Additionally, there restriction on transformer voltage. In proposed approach, we can find proper component values,...
This paper proposes the frequency-modulation (FM) controlled load-independent class-E inverter, which has robustness against simultaneous variations of load and components in output resonant filter. The main idea is to apply FM control output-voltage regulation inverter. By applying that, proposed inverter can keep phase shift between driving signal voltage constant without using any time information. As a result, maintain high power-conversion efficiency operation at frequencies despite...
An attempt was made to reveal the role of Ia-positive cells in beneficial effect pretransplant donor-specific blood transfusion (DST) and induction suppressor cardiac allotransplantation rats. Mean graft survival time (MST) F344 (RT1 1v1) hearts transplanted WKA (RT1k) rats 6.5 +/- 0.8 days. Pretreatment recipients with 1 ml DST 10 days before grafting prolonged it 56.5 38.1 Plasma or erythrocytes did not prolong MST at all, whereas pretreatment X 10(7) lymphocytes significantly. B enriched...
This paper describes a power electronic resonant circuit to control switched reluctance motor (SRM) for propulsion of an electric vehicle. The proposed involves six SCR thyristors and IGBT in C-dump type provide low cost, reliable, lightweight highly efficient vehicle system. Simulation results are included show the detailed voltage current waveforms applied windings.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
The two-stage DC-DC converter is developed for power supply of telecommunication application. This consists a buck topology in the first stage and half-bridge second stage. In order to reduce system order, output inductor removed form this topology, then can be treated as second-order approximation. As result, stability transient response are improved. Further improvement required. paper presents effect current mode control on an output-inductorless converter. voltage drop reduced by around...
This paper proposes a parallel resonant power oscillator that has the load-independent characteristic. The proposed is first parallel-resonant for high frequency operations. In addition, it achieves constant output voltage and soft switching against load variations without any control. feedback network generating driving signal does not have structure its function affected by self-oscillation frequency. Therefore, also self-tuning resonant-filter component tolerances. Because of above...
Wireless power transfer could increase the convenience and operating rates of battery-equipped electrical equipment. Since positional relationship between transmitter receiver coils is not fixed, selecting an optimal frequency for each necessary to maximize conversion efficiency. This paper focuses on search method a wireless circuit. We propose that maximizes input factor transmission efficiency without using radio communication receiver. The circuit examined combined resonance in which...
A 21-year-old man, who had been treated for congenital dilatation of the bile duct 13 years previously, presented with an acute abdomen. The physical examination suggested peritonitis, and emergent laparotomy was performed. perforation foundin jejunum approximately 100 cm distal to ligament Treitz, followed by resection a 60-cm jejunal segment. No tumorous lesions were found during operation, resected segment showed only focal myxomatous thickening serosa. Despite intensive therapy, he died...
This paper presents a frequency-modulation controlled resonant converter with the push-pull class-E inverter and class-D rectifier. The Class-E has no high-side switch in its topology, which is suitable to high-frequency operation. Additionally, it possible satisfy ZVS condition entire ranges of specified input-voltage load variations by applying inverter. region output-voltage contours are illustrated on parameter space, helpful for determine component values. validity design was confirmed...
In recent years, the LLC resonant converter with a center-tapped transformer has been widely used due to its high power density and efficiency features in Factory Automation which requires low output voltage current. However, imbalanced secondary current for each half cycle occurs, it cause problem of reliability degradation associated this paper, mechanism is investigated focusing on effects coupling coefficient transformer. This confirmed by experiments.
This paper proposes a wireless power transfer (WPT) system using the load-independent inverse class-E oscillator. The proposed realizes autonomous operation without external driving circuits. Therefore, it is easier to design power-transmission inverter at high frequencies, in particular. Moreover, WPT has characteristics. It maintains constant output voltage and zero current switching (ZCS) of MOSFET applying any controls for load variations. We conducted circuit analysis experimental...
症例は69歳,女性.46年前に急性虫垂炎で虫垂切除術を受けていた.3年前より虫垂炎術創近傍に腫瘤を自覚し増大するため当院受診.虫垂炎術創に接する14cm大の腫瘤を触知し,CTで腹壁に石灰化と造影効果を伴う嚢胞性病変を認めた.CEAとCA19-9が高値であったが腹壁腫瘤以外に病変指摘し得ず,遺残虫垂を認めたため虫垂粘液腫瘍を念頭に手術を施行した.遺残虫垂には異常なく,腹壁腫瘤との連続性もなく,それぞれ切除した.腫瘤内部はゼリー状物質で充満し,壁の所々に乳頭状の腫瘍を認め病理組織学的に粘液嚢胞腺癌と診断された.免疫染色でCK7陰性,CK20陽性にて虫垂原発と推定されたが,遺残虫垂に腫瘍は認められず,虫垂炎手術時に術創に粘膜のimplantationが起こり,長期間を経て癌化したものと推察された.本症例のように腹壁に発症した粘液嚢胞腺癌の報告はなく,興味深い症例であったため若干の文献的考察を加え報告した.
The antitumor effects of high-energy shock waves (HESW) in combination with ATX-70 [a gallium-porphyrin complex, 2,4-bis(1-decyloxyethyl)-Ga(III)-1,3,5,8-tetramethylporphyrin++ +-6, 7-dipropionyl diaspartic acid [sequence: see text] were investigated. In vitro, the cell damage to mouse MH134 hepatoma after HESW treatment was enhanced by adding ATX-70. vivo, and therapy inhibited growth. However, neither alone nor These results imply that combined are caused activation HESW.