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Valuation of Fluid Velocity Based on the Experiment Focused on Tsunami
No full textAt 14:46 local time on March 11, 2011, a magnitude 9.0 earthquake occurred off the coast of northeast Japan. This earthquake caused a tsunami which attacked Japan as well as a wide range of localities around the Pacific Ocean. The degree and extent of damage caused by the earthquake and resulting tsunami were enormous, with most of the damage being caused by the Tsunami. After that, hydrodynamic force of Tsunami acting on bridge studied both numerically and experimentally. However, design codes are not established. In this report, we focus on relationship between Tsunami force and flotsam. At first, the canal for experiment was surveyed by level and vertical measurement. Next, we conducted fluid velocity by experiment using some flotsams, and considered relationship between retreated value and water level
Study of Iodine Collection by Atmospheric Pressure Microwave Discharge Technique
No full textIn the event of a nuclear plant accident where the nuclear fuel has been damaged, radioactive iodine gaseous species can be released into the nuclear plant environment. However, extracting the iodine in a controlled manner to recover it and remediate the environment would require a more rigorous process. In this work, a microwave generated plasma is generated the iodine molecules (I2) from iodine compounds (CsI, KI etc.). An Argon gas based microwave generated plasma is used as the ionization chamber. The characteristics of the plasma and the iodine species is observed. Different forms of iodine (gas, liquid, solid) are released from the plasma zone downstream of the microwave chamber. The released gaseous species are capture in a filter system and the characteristics of the iodine species are identified. The results indicate that I2, I-, and I3-species are observed. The technique works well at ionizing the iodine species at relatively low powers and allowing them to be captured by a standard cotton filter. These results suggest that a microwave based technique may be useful for environmental cleanup activities of radioactive species such as iodine. The technique can be used to address contaminated material as well as treat the gas phase environment
Project-Based Learning at a National University : A Collaboration between English and Engineering Departments
No full textIn this paper, the authors outline the theoretical background for the creation of an engineering project-based learning English course, describe the actual content creation and implementation of this course from April 2014 to August 2014, and identify positive and negative themes analyzed through grounded theoretical coding from students' feedback, which lead to significant alterations of future iterations of the course. The major positive themes resulting from this analysis include presentation, knowledge acquisition in other fields, design, and research. Negative themes expressed by the students in the first iteration of the course include more 7'0EIC, time-consuming, more English, and burdensome. The authors conclude the paper by commenting about ongoing research concerning the longitudinal effects on engineering students who participated in an English language projectbased learning class, and ambitions for creating a robust and informed engineering projectbased learning model for English students that can be easily transferred to and utilized in other university English programs
