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  2. Rolled homogeneous armour - Wikipedia

    en.wikipedia.org/wiki/Rolled_homogeneous_armour

    RHA is homogeneous because its structure and composition are uniform throughout its thickness. The opposite of homogeneous steel plate is cemented or face-hardened steel plate, where the face of the steel is composed differently from the substrate. The face of the steel, which starts as an RHA plate, is hardened by a heat-treatment process.

  3. Fix problems signing in to AOL Mail

    help.aol.com/articles/fix-problems-signing-in-to...

    While most sign in problems can stem from password issues, you might also get blank or missing screens, or various errors when trying to sign in. No matter the problem you're experiencing, the following troubleshooting steps should help you get back in your AOL Mail quickly. Sign in again

  4. At sign - Wikipedia

    en.wikipedia.org/wiki/At_sign

    The at sign, @, is an accounting and invoice abbreviation meaning "at a rate of" (e.g. 7 widgets @ £2 per widget = £14), [1] now seen more widely in email addresses and social media platform handles. It is normally read aloud as "at" and is also commonly called the at symbol, commercial at, or address sign.

  5. Login - Wikipedia

    en.wikipedia.org/wiki/Login

    A screenshot of the English Wikipedia login screen. In computer security, logging in (or logging on, signing in, or signing on) is the process by which an individual gains access to a computer system or program by identifying and authenticating themselves.

  6. Stay informed about COVID-19 symptoms & prevention. Explore WebMD's comprehensive resource for information on signs, precautions, & the latest updates

  7. Single sign-on - Wikipedia

    en.wikipedia.org/wiki/Single_sign-on

    Single sign-on (SSO) is an authentication scheme that allows a user to log in with a single ID to any of several related, yet independent, software systems.. True single sign-on allows the user to log in once and access services without re-entering authentication factors.

  8. Protein in Urine: A Chart on What Your Levels Should Be

    www.healthline.com/health/protein-levels-in...

    A reading of 30 mg/g of protein or less in your urine is considered a normal amount and isn't usually a cause for concern. However, higher levels can be a sigh of kidney disease.

  9. How to Spot the Early Warning Signs of Cancer - WebMD

    www.webmd.com/cancer/cancer-early-warning-signs

    Less often, bladder or prostate cancer might be to blame. Your doctor can do urine tests and other exams to find the source of the blood. Lump in the testicle. A painless one is a possible warning ...