User:Diskdance/沙盒
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Special:Diff/79105252/79105842
水1 水 水2 我爱数学 我有歧义 RTL也要有歧义！ 我404
a(b)c 我(你)他
a[b]c 我[你]他
a{b}c 我{你}他
三大发撒扽等abcde发送扽速度1发动2 a发扽等BBCC 3。4 a; 5，，，你哈啊gg!!！
三大发撒扽等abcde发送扽速度1发动2 a发扽等BBCC 3。4 a; 5，，，你哈啊gg!!！
三大发撒扽等abcde发送扽速度1发动2 a发扽等BBCC 3。4 a; 5，，，你哈啊gg!!！
三大发撒扽等abcde发送扽速度1发动2 a发扽等BBCC 3。4 a; 5，，，你哈啊gg!!！
中EN中EN中EN中EN中
A也存在REPL
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中en中en中en中en中
en
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友情链接
<<<>>> <sdfs>
中文
fds反对
HanAssist.localize( { hans: '一天一苹果，医生远离我。', hant: '一天一蘋果，醫生遠離我。' } );
// => 界面语言为简中：“一天一苹果，医生远离我。”；繁中：“一天一蘋果，醫生遠離我。”
HanAssist.vary( { hans: '一天一苹果，医生远离我。', hant: '一天一蘋果，醫生遠離我。' } );
// => 页面变体为简中：“一天一苹果，医生远离我。”；繁中：“一天一蘋果，醫生遠離我。”
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[编辑]zh
博客、博客、博客
LK-99 (from the Lee-Kim 1999 research)[1] is a gray–black, polycrystalline compound, made by doping lead‒apatite with copper. A team from Korea University led by Lee Sukbae (이석배) and Kim Ji-Hoon (김지훈) began evaluating this material as a potential superconductor starting in 1999.[2]:1 In 2023, they published preprints claiming that it acts as a room-temperature superconductor[2]:8 with zero resistance and Meissner effect,[2]:1 at temperatures of up to 400 K（127 °C；260 °F） at ambient pressure.[1][3][2]:1
Many different labs attempted to replicate the work, and were able to reach initial results within weeks, as the process of producing the material is relatively straightforward.[4] 截至2023年8月10日[update] the growing consensus is that it is not a superconductor at any temperature,[5][6][7][8] but that impurities common to the proposed synthesis could produce resistance drops and magnetic response in small samples,[9][10][11] that mimic transitions in superconductors.[12][13]
While no replications have gone through the peer-review process of a journal, the first attempted replications were reviewed by a materials science lab and identified ferromagnetic and diamagnetic causes for observed partial levitation.[14] Other labs that observed partial levitation similar to that reported in the original paper found diamagnetism but no superconductivity.
The initial studies announcing the discovery of LK-99 were uploaded to arXiv, an open-access preprint archive. Lee later claimed the uploaded preprint papers were incomplete,[15] and coauthor Kim Hyun-Tak (김현탁) stated that one of the papers contained flaws.[16]
- ^ 1.0 1.1 引用错误：没有为名为
NYTimesLK99Summer的参考文献提供内容 - ^ 2.0 2.1 2.2 2.3 引用错误：没有为名为
sukbae-2023的参考文献提供内容 - ^ 引用错误：没有为名为
sukbae-2023b的参考文献提供内容 - ^ 引用错误：没有为名为
garisto-20230727的参考文献提供内容 - ^ 引用错误：没有为名为
:14的参考文献提供内容 - ^ 引用错误：没有为名为
:15的参考文献提供内容 - ^ Robinson, Dan. LK-99 slammed as 'not a superconductor at all'. www.theregister.com. [2023-08-10]. （原始内容存档于10 August 2023） （英语）.
- ^ Padavic-Callaghan, Karmela. LK-99: Mounting evidence suggests material is not a superconductor. New Scientist. [2023-08-10]. （原始内容存档于9 August 2023） （美国英语）.
- ^ 引用错误：没有为名为
Cu2S的参考文献提供内容 - ^ 引用错误：没有为名为
:16的参考文献提供内容 - ^ 引用错误：没有为名为
:17的参考文献提供内容 - ^ 引用错误：没有为名为
:3的参考文献提供内容 - ^ 引用错误：没有为名为
:10_2的参考文献提供内容 - ^ 引用错误：没有为名为
popmech的参考文献提供内容 - ^ 引用错误：没有为名为
yonhap-sjho-20230728的参考文献提供内容 - ^ 引用错误：没有为名为
padavic-c-20230726的参考文献提供内容