منابع مشابه
Surge Suppressors and Clamps
A tutorial paper with a review of the technologies available in the mid-eighties for surge protection of lowvoltage end-user equipment. The principles of operation are described for “crowbar devices” (now generally described under the standardized name of “voltage switching devices”) and for “voltage clamping devices: (now generally described under the standardized name of “voltage limiting dev...
متن کاملCharacterization of Transient Voltage Surge Suppressors From a System Compatibility Perspective
Transient voltage surge suppressors are characterized from the point of view of electric utilities wishing to ofler to their customers a comprehensive surgeprotection plan. This plan involves a surge arrester installed at the service enlrme and one or more plug-in suppressors installed within Me premises, at the point of connection of a surge-sensitive appliance. Complementary tests were conduc...
متن کاملTumor suppressors: enhancers or suppressors of regeneration?
Tumor suppressors are so named because cancers occur in their absence, but these genes also have important functions in development, metabolism and tissue homeostasis. Here, we discuss known and potential functions of tumor suppressor genes during tissue regeneration, focusing on the evolutionarily conserved tumor suppressors pRb1, p53, Pten and Hippo. We propose that their activity is essentia...
متن کاملA Compressor Surge Control System: Combination Active Surge Control System and Surge Avoidance System
A novel method for combining active surge control system (ASCS) and surge avoidance system (SAS) for a centrifugal compressor is presented. ASCS is a promising method to improve compressor operating area by stabilizing surge. However, this method is not applied yet in industrial compressors. Safety issue is considered in implementing the ASCS. A failure in ASCS may endanger the compressor by en...
متن کاملInteraction of UAG suppressors and omnipotent suppressors in Saccharomyces cerevisiae.
Haploids bearing the dominant UAG suppressor, SUP7-a, and various alleles of the omnipotent suppressor sup35 were examined. The presence of the UAG suppressor reduced the efficiency of some alleles of sup35, and caused other sup35 alleles to be lethal. A nonclassical interaction of the dominant suppressor tRNA and the ribosome is proposed to explain these observations.
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ژورنال
عنوان ژورنال: IALLT Journal of Language Learning Technologies
سال: 1992
ISSN: 1050-0049,1050-0049
DOI: 10.17161/iallt.v25i1.9455