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  2. Total dissolved solids - Wikipedia

    en.wikipedia.org/wiki/Total_dissolved_solids

    Total dissolved solids ( TDS) is a measure of the dissolved combined content of all inorganic and organic substances present in a liquid in molecular, ionized, or micro-granular ( colloidal sol) suspended form. TDS are often measured in parts per million (ppm). TDS in water can be measured using a digital meter.

  3. Total suspended solids - Wikipedia

    en.wikipedia.org/wiki/Total_suspended_solids

    Total suspended solids. Total suspended solids ( TSS) is the dry-weight of suspended particles, that are not dissolved, in a sample of water that can be trapped by a filter that is analyzed using a filtration apparatus known as sintered glass crucible. TSS is a water quality parameter used to assess the quality of a specimen of any type of ...

  4. Telephone and Data Systems - Wikipedia

    en.wikipedia.org/wiki/Telephone_and_Data_Systems

    Telephone and Data Systems, Inc. is a Chicago -based telecommunications service company providing wireless products and services; cable and wireline broadband, TV and voice services; and hosted and managed services to approximately 6 million customers nationwide through its business units TDS Telecom and U.S. Cellular ( NYSE : USM) and OneNeck ...

  5. Electrical resistivity and conductivity - Wikipedia

    en.wikipedia.org/wiki/Electrical_resistivity_and...

    The conductivity of a water/aqueous solution is highly dependent on its concentration of dissolved salts, and other chemical species that ionize in the solution. Electrical conductivity of water samples is used as an indicator of how salt-free, ion-free, or impurity-free the sample is; the purer the water, the lower the conductivity (the higher ...

  6. Two-body problem - Wikipedia

    en.wikipedia.org/wiki/Two-body_problem

    The solutions of these independent one-body problems can be combined to obtain the solutions for the trajectories x 1 (t) and x 2 (t). Center of mass motion (1st one-body problem) [ edit ] Let R {\displaystyle \mathbf {R} } be the position of the center of mass ( barycenter ) of the system.

  7. Kelly Clarkson Says She's Taking Medicine for Weight Loss ...

    www.aol.com/entertainment/kelly-clarkson-says...

    Cindy Ord/Getty Images for SiriusXM Kelly Clarkson says she’s taking weight-loss medication, but clarified that it’s not Ozempic. Clarkson, 42, opened up about her health on the Monday, May 13 ...

  8. AOL Mail for Verizon Customers - AOL Help

    help.aol.com/products/aol-mail-verizon

    Learn how to update your settings to make AOL Mail look and feel exactly how you need it. Netscape Internet Service (ISP) · Jan 30, 2024. Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.

  9. Sensitivity and specificity - Wikipedia

    en.wikipedia.org/wiki/Sensitivity_and_specificity

    Sensitivity (true positive rate) is the probability of a positive test result, conditioned on the individual truly being positive. Specificity (true negative rate) is the probability of a negative test result, conditioned on the individual truly being negative. If the true status of the condition cannot be known, sensitivity and specificity can ...

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