منابع مشابه
Simultaneous Shaping and Shortening of Nanosecond Pulses
In many fields of modem optics specially shaped optical pulses are desired. One of the most precise techniques employs a manipulation of the spatially dispersed optical frequency components ofthe incoming ultrashort laser pulses [1]. As a result, the output pulses are shaped and broadened in time. The aim of the present work is to provide evidences on the possibility [2] for a simultaneous shap...
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Electrofusion is an efficient method for fusing cells using short-duration high-voltage electric pulses. However, electrofusion yields are very low when fusion partner cells differ considerably in their size, since the extent of electroporation (consequently membrane fusogenic state) with conventionally used microsecond pulses depends proportionally on the cell radius. We here propose a new and...
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Electroporation by nanosecond electric pulses (nsEP) is an emerging modality for tumor ablation. Here we show the efficient induction of apoptosis even by a non-toxic nsEP exposure when it is followed by a 30-min chilling on ice. This chilling itself had no impact on the survival of U-937 or HPAF-II cells, but caused more than 75% lethality in nsEP-treated cells (300 ns, 1.8-7 kV/cm, 50-700 pul...
متن کاملHigh-voltage nanosecond pulses in a low-pressure radio-frequency discharge.
An influence of a high-voltage (3-17 kV) 20 ns pulse on a weakly-ionized low-pressure (0.1-10 Pa) capacitively coupled radiofrequency (RF) argon plasma is studied experimentally. The plasma evolution after pulse exhibits two characteristic regimes: a bright flash, occurring within 100 ns after the pulse (when the discharge emission increases by 2-3 orders of magnitude over the steady-state leve...
متن کاملNanosecond laser processing of Zr41.2Ti13.8Cu12.5Ni10Be22.5 with single pulses
In addition to their attractive mechanical properties, the amorphous structure of bulk metallic glasses (BMGs) leads to favourable conditions for their processing using micro machining operations. At the same time, the generally high hardness and strength of such amorphous metals make short or ultrashort pulsed laser ablation a fabrication technology of interest for generating micro scale featu...
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ژورنال
عنوان ژورنال: Proceedings of the IEEE
سال: 1965
ISSN: 0018-9219
DOI: 10.1109/proc.1965.3894