Electric vehicles (EVs) are considered to be a solution for sustainable transportation. EVs can reduce fossil fuel consumption, greenhouse gas emissions, and the negative impacts of climate change and global warming, as well as help improve air quality. However, EV adoption in Thailand is quite low. Against this backdrop, this study investigates barriers and motivators for EV adoption and their public perception in Thailand. A total of 454 responses were collected through an online questionnaire. The results indicate that the top three concerns of respondents about EVs are public infrastructure and vehicle performance in terms of charge range and battery life. Respondents with more than five years of driving experience in the age range of 26–35 years old could be key targets for early EV adoption.

We will give a new version of proof for Furtwängler's characterization of all ideals of an algebraic number field which appear as conductors of orders of the field.Mathematics Subject Classification (2010). Primary 11R04; Secondary 13F05.

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In this paper, we introduce the notion of doubt fuzzy ideals of B-algebras and show that the arbitrary union of any doubt fuzzy ideals of a B-algebra is a doubt fuzzy ideal.

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