User talk:Niuniu2018

File permission problem with File:Xin Zhang, Professor at Boston University.jpg
Thanks for uploading File:Xin Zhang, Professor at Boston University.jpg, which you've attributed to Kalman Zabarsky. I noticed that while you provided a valid copyright licensing tag, there is no proof that the creator of the file has agreed to release it under the given license.

If you are the copyright holder for 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-en@wikimedia.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 take this step, add OTRS pending to the file description page to prevent premature deletion.

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-en@wikimedia.org.

If you believe the media meets the criteria at Non-free content, use a tag such as non-free fair use or one of the other tags listed at File copyright tags, and add a rationale justifying the file's use on the article or articles where it is included. See File 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 created in [ your upload log]. Files lacking evidence of permission may be deleted one week after they have been tagged, as described in section F11 of the criteria for speedy deletion. You may wish to read Wikipedia's image use policy. If you have any questions please ask them at the Media copyright questions page. Thank you. — Diannaa 🍁 (talk) 12:45, 6 July 2018 (UTC)