A potassium-ion battery or K-ion battery (abbreviated as KIB) is a type of and analogue to , using for charge transfer instead of lithium ions. It was invented by the Iranian/American chemist Ali Eftekhari (President of the American Nano Society) in 2004.
[pdf] Renewable energy in the is primarily provided by and biomass. Since 2011 the Cook Islands has embarked on a programme of renewable energy development to improve its and reduce , with an initial goal of reaching 50% renewable electricity by 2015, and 100% by 2020. The programme has been assisted by.
[pdf] The United States Minor Outlying Islands is a statistical designation defined by the 's code. The entry code is . The minor outlying islands and groups of islands comprise eight United States in the Pacific Ocean (, , , , , , .
美国本土外小岛屿（英語：United States Minor Outlying Islands），的國際標準所定義的以下九處屬地，二位字母代碼是“UM”。它們目前沒有永久人口。它們的是。美國尚聲稱擁有和，但是目前其实际管理方是。
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