A5046493576- Magnetic confinement fusion research
- Plasma Diagnostics and Applications
- Ionosphere and magnetosphere dynamics
- Fusion materials and technologies
- Particle accelerators and beam dynamics
- Nuclear Materials and Properties
- African Botany and Ecology Studies
- Superconducting Materials and Applications
- Nuclear Physics and Applications
- Agricultural Innovations and Practices
- Laser-Plasma Interactions and Diagnostics
- Climate variability and models
- Biofuel production and bioconversion
- Climate change impacts on agriculture
- Nuclear reactor physics and engineering
- Animal Diversity and Health Studies
- Precipitation Measurement and Analysis
- Astronomical Observations and Instrumentation
- Rangeland Management and Livestock Ecology
- Agriculture and Rural Development Research
- Biodiesel Production and Applications
- Oil Palm Production and Sustainability
- Advanced Combustion Engine Technologies
- Hydraulic and Pneumatic Systems
- Bioenergy crop production and management
Aomori Public University
2017-2021
Japan International Cooperation Agency
2018
Tottori University
2017-2018
Research Institute for Humanity and Nature
2013-2015
Japan Atomic Energy Agency
2006-2007
Advanced Science Research Center
2004
University of Tsukuba
1999-2003
In 2007, we conducted field research in Sinazongwe District Southern Province, Zambia, focusing on collecting indigenous information concerning the local climate, which was often embodied proverbs involving weather forecasts. The compared with recently collected meteorological records and a relationship between popular folk knowledge, global climate factors such as ENSO (El Niño Oscillation) suggested. Proverbs related to agriculture were categorized into four types of indicators used...
Jatropha has gained interest as a potential biodiesel feedstock. Nevertheless, its oil production decreases significantly in frost- and drought-prone regions. In this study, we characterized the flowering pattern of Botswana 2014/2015 season. Extensive springtime pruning synchronized regrowth summer effectively stimulated growth after frost damage. Flowering started February 2015 peaked April May. Wide variations frequency were observed among different accessions. Trees March produced fruit...
GAMMA 10 experiments have advanced in high density after the last IAEA fusion energy conference 2000 where we reported production of plasma through use ion cyclotron range frequency heating at a harmonic and neutral beam injection anchor cells. However, diamagnetic signal decreased when electron resonance was applied for potential formation. Recently has been obtained without degradation with much improved reproducibility than before. The attained adjustment spacing conducting plates...
Zambia has frequently been affected by abnormal weather and droughts. Our research focused on the type of meteorological data required to assist farmers' efforts avoid risks associated with these conditions. We conducted local observations from September 2007 August 2010 at three sites in Sinazongwe District, Zambia. The rainy seasons this period coincided sequence La Niña (normal) El Niño mean annual precipitation for years our study exceeded 1200 mm, which was considerably more than...
High-density experiments using newly applied ioncyclotron range of frequency (ICRF) wave and neutral beam injection (NBI) in the GAMMA 10 tandem mirror are described. A new ICRF system (RF3) with high harmonic has been introduced for achieving density. In addition, injectors were recently installed at central anchor cells fueling to target plasmas produced by waves. Arrays Hα line-emission detectors from midplane central-cell anchor-cell order evaluate particle source density around these...
Jatropha (Jatropha curcas L.) has been identified as a potential bioenergy feedstock in arid regions, but knowledge of the diversity its chemical characteristics is limited. In this study, 61 accessions growing Botswana, where both severe drought and winter frosts frequently occur, were analyzed for their seed properties. Histogram analyses meta-analysis comparisons with seeds from other countries/continents showed that median/mean dry weight, toxic compound phorbol esters, C18:0 fatty acid...
Results of Hα measurement in the GAMMA 10 tandem mirror are described, with a particular focus on behavior neutrals anchor minimum-B region. Recently set line-emission detector arrays was designed and installed anchor-cell, where shape magnetic flux tube becomes flat cross section plasma is elongated elliptically. The consists interference filter, optical fiber, photomultiplier shield, absolutely calibrated by using standard lamp. In ion-cyclotron-range-of-frequency heated, hot-ion-mode...
Edge plasma diagnostic system equipped in minimum-B anchor cell of the GAMMA10 tandem mirror is described together with measured results. Several sets element consisting a Langmuir probe and calorimeter are placed array on conducting plates installed east cell. This designed to be capable precisely investigating spatial dependence edge parameters. In typical ion cyclotron range frequency-heated plasmas, detailed behavior transition regions has been by using this system. From these...
Study of plasma shape by movable Langmuir probes at the transition region anchor cell points out displacement from magnetic flux tube. Measurements edge near conducting plates indicate ion loss through regions. It is suggested that ▽B and curvature drifts are sources loss. Possible ways improvement GAMMA10 field configuration discussed.