نتایج جستجو برای: spark discharge
تعداد نتایج: 109418 فیلتر نتایج به سال:
Abstract. Two types of DC electrical discharges in atmospheric air (streamer corona and transient spark) were tested for decontamination and decoloration of water contaminated by bacteria and organic dyes. The flowing water passed through the high voltage (HV) needle electrode into the active discharge region. The bacteria were killed most efficiently by transient spark and streamer corona with...
Conventional tests for investigating the minimum ignition energy (MIE) of dust clouds are restricted to energies above a few mJ, due to the challenges of producing sparks of very low energies that can be synchronised with a transient dust cloud. In this paper, a new circuit for generating capacitive sparks of significantly lower energies than 1mJ is presented. A measurement system for capturing...
Miller's 1950s experiments used, besides the apparatus known in textbooks, one that generated a hot water mist in the spark flask, simulating a water vapor-rich volcanic eruption. We found the original extracts of this experiment in Miller's material and reanalyzed them. The volcanic apparatus produced a wider variety of amino acids than the classic one. Release of reduced gases in volcanic eru...
Primordial synthesis of amines and amino acids in a 1958 Miller H2S-rich spark discharge experiment.
Archived samples from a previously unreported 1958 Stanley Miller electric discharge experiment containing hydrogen sulfide (H(2)S) were recently discovered and analyzed using high-performance liquid chromatography and time-of-flight mass spectrometry. We report here the detection and quantification of primary amine-containing compounds in the original sample residues, which were produced via s...
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