DMCA Policy

Delta-V Desk respects the intellectual property of others and responds to notices of alleged copyright infringement under the US Digital Millennium Copyright Act. Our articles, worked examples and diagrams are written for this site; if you believe any of them copies your work, such as a textbook problem set, a lecture figure or a published mission diagram, please tell us.

Filing a Notice

Send a written notice to logan.luo@adsnova.cn with "DMCA notice" in the subject line, including:

  1. Your physical or electronic signature as the copyright owner or a person authorised to act for the owner
  2. Identification of the copyrighted work you claim is infringed, such as the book title, edition and page, or the URL of the original
  3. The URL of the page on our site and a description of the specific passage, example or image concerned
  4. Your name, postal address, telephone number and email address
  5. A statement that you have a good-faith belief that the use is not authorised by the copyright owner, its agent or the law
  6. A statement, under penalty of perjury, that the information in the notice is accurate and that you are the owner or authorised to act for the owner

Note that physical laws, formulas and standard constants, such as Kepler’s third law or the value of Earth’s gravitational parameter, are facts and are not protected by copyright. A notice should identify specific creative expression, such as wording or a drawing.

What Happens Next

When we receive a complete notice we remove or disable the material promptly and, where we can, inform the person who supplied it.

Counter-Notice

If material you supplied was removed and you believe this was a mistake or misidentification, you may send a counter-notice to the same address containing your signature, identification of the material and where it appeared, a statement under penalty of perjury that you have a good-faith belief it was removed by mistake, and your name, address and consent to the jurisdiction of the appropriate federal court. We may restore the material within 10 to 14 business days unless the original complainant tells us they have filed a court action.

Repeat Infringers

We do not accept user uploads, but if we ever work with outside contributors we will stop publishing material from anyone who is the subject of repeated valid notices.

Misuse

Knowingly misrepresenting that material infringes, or that it was removed by mistake, may make you liable for damages under 17 U.S.C. § 512(f).