A5081380804- Hydraulic and Pneumatic Systems
- Soft Robotics and Applications
- Advanced machining processes and optimization
- Nuclear physics research studies
- Flow Measurement and Analysis
- Quantum Chromodynamics and Particle Interactions
- Advanced Surface Polishing Techniques
- Engineering Applied Research
- Metal Alloys Wear and Properties
- Nuclear Physics and Applications
- Advanced NMR Techniques and Applications
- Tunneling and Rock Mechanics
- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Fuel Cells and Related Materials
- Metal Forming Simulation Techniques
- Vehicle Dynamics and Control Systems
- Vibration Control and Rheological Fluids
- Metal and Thin Film Mechanics
- Microfluidic and Capillary Electrophoresis Applications
- Prosthetics and Rehabilitation Robotics
- Advanced Sensor and Control Systems
- Vibration and Dynamic Analysis
- Atomic and Molecular Physics
- Superconducting Materials and Applications
Kansai University
2015-2025
Okayama University
2007-2014
Osaka University
2001-2003
The angular distributions of the cross section, proton analyzing power, and all polarization transfer coefficients $\stackrel{\ensuremath{\rightarrow}}{p}d$ elastic scattering were measured at 250 MeV. range center-of-mass angles was $10\ifmmode^\circ\else\textdegree\fi{}--165\ifmmode^\circ\else\textdegree\fi{}$ for section about $10\ifmmode^\circ\else\textdegree\fi{}--95\ifmmode^\circ\else\textdegree\fi{}$ coefficients. These are first measurements a complete set observables intermediate...
In recent years, many researchers have been focusing on the different novel techniques in designing pneumatic soft actuator that can produce bending motion. This paper presents a design; combination of braided angles artificial muscle applied single chamber to The construction is based theory contraction and extension muscle. It comprises fiber-reinforced inside silicone rubber capable create one-sided Analysis nonlinear finite element method conducted predict direction before prototype...
In this study, we introduce research aimed at developing a compact particle-excitation flow control valve that enables continuous of air rate. We have been with for application to soft actuators. The are uses particles as plug, which does not require plug positioning function and allows the be miniaturized. Furthermore, by controlling movements on orifice, rate can made finer response improved. On other hand, past driving principle used resonant mode an oscillator utilizing piezoelectric...
This paper describes an improved particle-excitation flow-control valve with high flow rate and controllability. The proposed control has a small volume, is lightweight, can smoothly the airflow through particle excitation. Pneumatic actuators, which have many advantages, are widely used in automation machine equipment expected to be robots. In general, such highly controllable pneumatic-control devices as proportional valves large-scale, heavy, exhibit low response. We developed new called...
Nucleon-nucleon decoupled dibaryons below the pion emission threshold have been investigated by $p\stackrel{\ensuremath{\rightarrow}}{d}\mathrm{pdX}$ and $p\stackrel{\ensuremath{\rightarrow}}{d}\mathrm{ppX}$ reactions at ${E}_{p}=300 \mathrm{MeV}.$ Such are predicted to either decay into a deuteron or two nucleons emitting $\ensuremath{\gamma}$ ray consequently very narrow width of less than 1 keV. The experiment was carried out Research Center for Nuclear Physics employing two-arm magnetic...
Pneumatic actuators are widely used because they lightweight and inexpensive. However, highly controllable devices for pneumatic generally have large volume low response heavy. We developed the flow control valves that using PZT elements. These can downsize valve with high response. Using a transducer, we introduced new mechanism of stable continuous rate. In this report, proposed to realize transducer. designed prototype bolt-clamped Langevin transducer (BLT) show characteristics valve.
The authors have previously developed a compact, light-weight air flow control valve, which realizes continuous control. vibration produced by piezoelectric device (PZT) was used to excite particles confined in channel the valve opening for valve. Therefore, voltage applied PZT can be changed continuously rate. A new working principle stabilize rate characteristics. Different types of were change condition. prototype manufactured demonstrate effectiveness
This paper reports a flow control valve for pneumatic actuators. has lightweight and simple structure using particle excitation by PZT transducer, which is driven at resonance mode it can be used as variable speed controller A transducer been controlling rate in this study. The report consists of an orifice plate, fixed on the plate with bolt, iron particles 0.8 mm diameter. From experiments flowing quantity evaluation, achieves maximum 62.65 L/min under applying voltage 79.9 V <sub...
This paper reports an improvement of the particle-excitation flow control valve. The valve that we have designed in previous can air flow, using particle excitation by piezoelectric resonance, and has following advantages: small size, lightweight, high response continuous airflow control. However, our models, relationship between driving voltage quantity was nonlinear. In this report, improved to realize proportional consists orifice plate, some orifices, steel particles seal orifices...
Pneumatic actuators have the potential to be downsized because they simple structure. However, many control devices that can pneumatic continuously large volume and weight. We designed a flow-control valve driven by PZT vibrator. This has small low weight, it air flow smoothly. is suited actuators. The we propose uses resonance vibration with consists of an orifice plate, vibrator iron particles work as poppet. From experimental quantity evaluation, this controls smoothly hysteresis at rate....
Recently, pneumatic actuators are widely used in the automation machine equipments because they simple, lightweight, and highly compliant. Valve that can realize a continuous flowing quantity control is necessary to air precisely, while general, such valve large. This study aims at development of new flow has lightweight simple structure uses piezoelectric oscillator which driven resonance mode it flow-rate by controlling amplitude particles excitation. The this report 10 mm diameter 9...
In this paper, we report a new prototype of the particle excitation flow control valve to rate continuously. The purpose study is development that can precisely pneumatic cylinders. We reported principle in previous paper and concluded diameter orifice an important parameter for change. report, have designed high controllability. measured characteristics confirmed conditions necessary continuous adjustment quantity by experiment.
We have developed particle-excitation flow control valve. The valve uses a piezoelectric oscillator which is driven in the resonance and valve’s features are simple structure, lightweight high rate / weight. can by controlling voltage amplitude. In this report, we used to speed of pneumatic cylinder. measured response time vale that important parameter for servo system. And evaluated characteristics meter-out circuit using compared with general controller. Additionally, performed experiments...
Pneumatic actuators have several advantages: high compliance, lightweight, safety, and low-cost. However, because pneumatic nonlinearity, the control of is very complex. Therefore, controllability response devices are demanded. We designed flow valve that can rate smoothly. This has simple structure using PZT resonance mode. In this paper, we aimed at stability valve, new orifice plates. From results, verified condition to steady valve.
The purpose of this study is the development a valve that can precisely control pneumatic cylinders. lightweight and has simple structure. uses piezoelectric oscillator which driven in resonance mode, it flow rate by controlling amplitude particle excitation. In report, we have designed new prototype for high controllability. We applied non-linear algorithm to Q-V nonlinearlity valve. found works well realize linear characteristics.
The purpose of this study is development the high efficiency pneumatic system using small flow control valve. valve has size, lightweight and can air continuously. We aim at precise control. In repot, we report vibrational condition for discovered two modes by finite element method. have measured rate characteristics. From these result, conclude that tolerance pressure most important parameter optimum condition.
In planarization processes of sapphire, lapping process takes a long time because sapphire is hard material. contrast, superfinishing, which involves fixed abrasive machining, can substitute for lapping, and it would be possible to shorten the amount processing time. this work, vitrified-bonded diamond superabrasive stones with different grain diameters are developed. Then, multistage superfinishing investigated by combining these stones. Results indicate that capable producing 2 nmRa...