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Passive Intermodulation (PIM) Measurement. Passive intermodulation (PIM) is a form of intermodulation distortion that occurs in passive components such as antennas, cables, connectors, or duplexers with two or more high-power input signals.PIM in the transmission path degrades quality of the wireless communication system.nnovative Passive Intermodulation (PIM) and S-parameter Measurement Solution with the ENA. This application note introduces the solution that combines PIM and S-parameter measurements by using the vector network analyzer.
RNA interference (RNAi) is a cellular mechanism activated by double-stranded RNA (dsRNA). Cellular dsRNA-specific RNaseIII enzymes (Dicer) recognize dsRNA and process it into double-stranded small interfering RNAs (ds-siRNAs) of 21â25 nucleotides (nt).ew biotechnology-derived crop traits have been developed utilizing the natural process of RNA interference (RNAi). However, plant-produced double stranded RNAs (dsRNAs) are not known to present a hazard to mammals because numerous biological barriers limit uptake and potential for activity.