User talk:YZhangfirst

Welcome...

Hello, YZhangfirst, and welcome to Wikipedia! Thank you for your contributions. I hope you like the place and decide to stay. Here are some pages that you might find helpful:

Please sign your name on talk pages using four tildes (~~~~); this will automatically produce your username and the date. If you need help, check out Wikipedia:Questions, ask me on my talk page, or place {{helpme}} on your talk page and ask your question there. Again, welcome! Dan Beale-Cocks 20:15, 24 April 2008 (UTC)[reply]

File permission problem with File:Geim.jpg

Thanks for uploading File:Geim.jpg. I noticed that while you provided a valid copyright licensing tag, there is no proof that the creator of the file agreed to license it under the given license.

If you created this media entirely yourself but have previously published it elsewhere (especially online), please either

make a note permitting reuse under the CC-BY-SA or another acceptable free license (see this list) at the site of the original publication; or
Send an email from an address associated with the original publication to permissions-enwikimedia.org, stating your ownership of the material and your intention to publish it under a free license. You can find a sample permission letter here.

If you did not create it entirely yourself, please ask the person who created the file to take one of the two steps listed above, or if the owner of the file has already given their permission to you via email, please forward that email to permissions-enwikimedia.org.

If you believe the media meets the criteria at Wikipedia:Non-free content, use a tag such as {{non-free fair use in|article name}} or one of the other tags listed at Wikipedia:Image copyright tags#Fair use, and add a rationale justifying the file's use on the article or articles where it is included. See Wikipedia:Image copyright tags for the full list of copyright tags that you can use.

If you have uploaded other files, consider checking that you have provided evidence that their copyright owners have agreed to license their works under the tags you supplied, too. You can find a list of files you have uploaded by following this link. Files lacking evidence of permission may be deleted one week after they have been tagged, as described on criteria for speedy deletion. If you have any questions please ask them at the Media copyright questions page. Thank you. (ESkog)^(Talk) 18:28, 8 January 2010 (UTC)[reply]

File:Real graphene.jpg

Hi,

An image you uploaded (image:Real graphene.jpg) has been nominated for deletion since 5 October 2010. To discuss it, please go here.

Reason for the deletion request: http://pubs.rsc.org/en/Content/ArticleLanding/2009/CC/b911395a - comes form the journal, however it's not free over there and the journal's editor holds the copyright.

Even though you were the author of the paper, I think you have signed the copyright transfer form, thus you don't hold the copyright. If it is the case, please upload a different version of image in place of it. Thank you.--Jjok (talk) 13:57, 7 October 2010 (UTC)[reply]