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Surge Protection Device (SPD) for installation in a low-voltage distribution board. A surge protector (or spike suppressor, surge suppressor, surge diverter, [1] surge protection device (SPD) or transient voltage surge suppressor (TVSS) is an appliance or device intended to protect electrical devices in alternating current (AC) circuits from voltage spikes with very short duration measured in ...
Sterile dental instruments from hospital central supply (barcoded label indicating sterilization date, expiry date and contents). The central sterile services department (CSSD), also called sterile processing department (SPD), sterile processing, central supply department (CSD), or central supply, is an integrated place in hospitals and other health care facilities that performs sterilization ...
Sensory integration difficulties or sensory processing disorder (SPD) are characterized by persistent challenges with neurological processing of sensory stimuli that interfere with a person's ability to participate in everyday life. Such challenges can appear in one or several sensory systems of the somatosensory system, vestibular system ...
The SPD government, committed to parliamentary liberal democracy, used military force against more radical communist groups, leading to a permanent split between the SPD and the USPD, as well as the Spartacist League which would go on to form the Communist Party of Germany (KPD) and integrate a majority of USPD members as well.
The foundation of the Social Democratic Party of Germany (German: Sozialdemokratische Partei Deutschlands, SPD) can be traced back to the 1860s, and it has represented the centre-left in German politics for much of the 20th and 21st centuries. From 1891 to 1959, the SPD theoretically espoused Marxism. [1]
Special districts in the United States are founded by some level of government in accordance with state law [8] (either constitutional amendment, general law, or special acts) [9] and exist in all states. Special districts are legally separate entities with at least some corporate powers. [10] Districts are created by legislative action, court ...
Sustainable product development (SPD) is a method for product development that incorporates a Framework for Strategic Sustainable Development (FSSD), also known as The Natural Step (TNS) framework. As the demand for products continues to increase around the world and environmental factors like climate change increasingly affect policies—and ...
In radiometry, photometry, and color science, a spectral power distribution (SPD) measurement describes the power per unit area per unit wavelength of an illumination (radiant exitance). More generally, the term spectral power distribution can refer to the concentration, as a function of wavelength, of any radiometric or photometric quantity (e ...