A5053281493- Lattice Boltzmann Simulation Studies
- Irrigation Practices and Water Management
- Advancements in Solid Oxide Fuel Cells
- Aerosol Filtration and Electrostatic Precipitation
- Fluid Dynamics and Turbulent Flows
- Heat Transfer and Optimization
- Heat Transfer and Boiling Studies
- Soil and Unsaturated Flow
- Catalytic Processes in Materials Science
- Surface Modification and Superhydrophobicity
- Fluid Dynamics and Vibration Analysis
- Fluid Dynamics and Heat Transfer
- Anodic Oxide Films and Nanostructures
- Rice Cultivation and Yield Improvement
- Topology Optimization in Engineering
- Engineering and Agricultural Innovations
- Fuel Cells and Related Materials
- Spacecraft and Cryogenic Technologies
- Aerodynamics and Fluid Dynamics Research
- Nanoporous metals and alloys
- Heat Transfer Mechanisms
- Transboundary Water Resource Management
- Semiconductor materials and devices
- Electrocatalysts for Energy Conversion
- Heat and Mass Transfer in Porous Media
Japan International Research Center for Agricultural Sciences
2015-2025
The University of Tokyo
2013-2024
Tokyo University of Science
2001-2024
RIKEN
2024
RIKEN Center for Computational Science
2024
Honda (Japan)
2021
Kyoto Institute of Technology
2021
Advanced Institute of Industrial Technology
2013
Toyota Motor Corporation (Switzerland)
2009-2010
Tohoku University
2004-2005
Soil salinization poses a significant challenge to agricultural productivity worldwide, particularly in the rice-wheat belt of western Indo-Gangetic Plains (IGP), where excess sodium salts (sodicity) degrade soil health and threaten crop production. The cut-soiler, farm machine developed Japan, is an innovative cost-effective solution. cut-soiler constructs residue-filled, shallow subsurface drains, enhancing lateral vertical water movement through improving conditions productivity. Unlike...
A Lattice Boltzmann model for polymeric liquids is developed. In the proposed model, polymers are modelled as dumbbells suspended in a solvent. distribution function introduced to describe configuration of dumbbells, and used evaluate viscoelastic stresses flow fields. discrete kinetic equation configurational derived, shown recover Oldroyd-B constitutive at continuous level, when coupled with standard Numerical simulations both steady unsteady flows performed order investigate validity...
Topology optimization is conducted to find the optimal meso-scale structure for electrolyte-anode interfaces of solid oxide fuel cells. In present method, total reaction current in anode chosen as an objective function be maximized. The adjoint method applied compute sensitivity with respect interface shape, which considered design variable. A cylindrical pillar used initial guess and iteratively modified according procedure. From results, it shown that has multiple branches at top side...
Abstract Soil salinity is a major soil degradation problem that limits agricultural production. The cut‐soiler constructed preferential shallow subsurface drainage (PSSD) method promising management technology for small‐scale application and adoption in drylands. This study assessed the effectiveness of rice residue‐filled PSSD managing its effect on physiology yield pearl millet. simulated drains were manually semi‐controlled lysimeter. A double replicated, split–spilt plot experiment,...
Soil salinity and the use of saline groundwater are two major constraints in crop production, which covers a ~1.0 billion ha area arid semi-arid regions. The improved drainage function soil can modify salty growing environment for higher agricultural production. present study evaluated effectiveness cut-soiler-constructed rice residue-filled preferential shallow subsurface (PSSD) to improve its effect on yield, quality plant–water relations mustard over 2019–2021. Cut-soiler-simulated drains...
Nickel (Ni) film on patterned Ni- yttria-stabilized zirconia (YSZ) anode shows dynamic spreading and splitting during solid oxide fuel cell (SOFC) operation, where wettability of Ni YSZ is greatly enhanced (Z. Jiao, N. Shikazono, J. Power Sources 396 119–123, 2018). In the present study, a physics-informed neural network (PINN) constrained by Cahn-Hilliard equation phase field model proposed to estimate unknown parameters for predicting movements Ni-YSZ anode. The such as interface thickness...
The application of Artificial Neural Networks (ANNs) has been extensively investigated for fluid dynamic problems. A specific form ANNs are Physics-Informed (PINNs). They incorporate physical laws in the training and have increasingly explored last few years. In this work, prediction accuracy PINNs is compared with that conventional Deep (DNNs). a DNN depends on amount data provided training. change DNNs assessed using varying data. To ensure correctness data, they obtained from analytical...
In this paper, we describe the development of a lattice Boltzmann scheme for incompressible thermohydrodynamics. Being based on kinetic theory, simulates macroscopic fluid flows and heat transfers with use distribution functions. A systematic derivation from continuous equation is discussed in details. We find that 5-velocity model can be employed to simulate transfer such case where viscous compressive heating effects are negligible. As benchmark, numerical simulations natural convection...
Secondary salinization of irrigated lands in drylands is often caused by rising groundwater levels. Open drainage widely employed to control groundwater. However, salinity levels tend remain high under malfunctioning conditions. Shallow subsurface may be a possible solution prevent salt accumulation, although it difficult for farmers apply conventional tile systems owing construction costs. In this regard, we proposed low-cost shallow system used combination with new mole-drain drilling...
We investigate the accuracy and computational efficiency of numerical schemes for evaluating fluid forces in Cartesian grid systems. A comparison is made between two different types schemes, namely, polygon‐based methods mesh‐based methods, which differ discretization surface object. The present assessment intended to effects Reynolds number, object motion, complexity surface. results show that work as well even if discretized a staircase manner. In addition, also strongly dependent on...
This paper presents the process integration and device technology for Resistance RAM(RRAM) memory array using a CoOx film recess structure as resistor, which is capable of low voltage, high speed current operation. The resistance its uniformity are strongly dependent on quality, optimized by controlling O <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> gas flow rate during deposition. We demonstrate basic write read operation 128Kbits...