Takeyosi Koseki

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BACKGROUND In recent years, disasters that overwhelm the capacity of humans have been frequent. However, international cooperation has been swift as a result of advances in transportation, enabling the more prompt administration of First Aid. METHODS We have had two opportunities to observe outcomes in oral hygiene immediately after and 10 months after(More)
niobium’s effect on transformation behavior has been noted with the emergence of acicular or bainitic steels. Under certain conditions, such as utilizing low interstitial contents and high austenizing temperatures, small Nb additions increase hardenability by depressing Ar3 transformation temperature. Many disagreements exist, however, on the effect of Nb(More)
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