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  2. Thermal desorption spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Thermal_desorption...

    Temperature programmed desorption (TPD) is the method of observing desorbed molecules from a surface when the surface temperature is increased. When experiments are performed using well-defined surfaces of single-crystalline samples in a continuously pumped ultra-high vacuum (UHV) chamber, then this experimental technique is often also referred to as thermal desorption spectroscopy or thermal ...

  3. 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.

  4. Terahertz time-domain spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Terahertz_time-domain...

    In physics, terahertz time-domain spectroscopy ( THz-TDS) is a spectroscopic technique in which the properties of matter are probed with short pulses of terahertz radiation. The generation and detection scheme is sensitive to the sample's effect on both the amplitude and the phase of the terahertz radiation. Fourier transform of the above pulse.

  5. List of abbreviations used in medical prescriptions - Wikipedia

    en.wikipedia.org/wiki/List_of_abbreviations_used...

    t.d.s., TDS ter die sumendum: 3 times a day t.i.d., t.d. ter in die: 3 times a day AMA style avoids use of this abbreviation (spell out "3 times a day") tinct. tinctura: tincture t.i.w. 3 times a week mistaken for "twice a week" top. topical TPN total parenteral nutrition tr, tinc., tinct. tinctura: tincture trit. triturate: grind to a powder

  6. TDS Telecom - Wikipedia

    en.wikipedia.org/wiki/TDS_Telecom

    TDS Telecom is an American telecommunications company with headquarters in Madison, Wisconsin.It is a wholly owned subsidiary of Telephone and Data Systems Inc, and is the seventh-largest local exchange carrier in the U.S. TDS Telecom offers telephone, broadband Internet and television services to customers in 30 states and more than 900 rural and suburban communities, though it also serves ...

  7. Electrical resistivity and conductivity - Wikipedia

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

    Electrical resistivity (also called volume resistivity or specific electrical resistance) is a fundamental specific property of a material that measures its electrical resistance or how strongly it resists electric current. A low resistivity indicates a material that readily allows electric current.

  8. Remote pickup unit - Wikipedia

    en.wikipedia.org/wiki/Remote_pickup_unit

    A remote pickup unit or RPU is a radio system using special radio frequencies set aside for electronic news-gathering (ENG) and remote broadcasting. It can also be used for other types of point-to-point radio links. An RPU is used to send program material from a remote location to the broadcast station or network.

  9. Tornado debris signature - Wikipedia

    en.wikipedia.org/wiki/Tornado_debris_signature

    A tornadic debris signature ( TDS ), often colloquially referred to as a debris ball, [1] is an area of high reflectivity on weather radar caused by debris lofting into the air, usually associated with a tornado. [1] [2] A TDS may also be indicated by dual-polarization radar products, designated as a polarimetric tornado debris signature ( PTDS ).