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explosives
Detonation of explosives containing heavy inert particles
      
Two-photon-excited luminescence (TEL) spectra have been recorded in the blue (400-500 nm) and near-ultraviolet (300-400 nm) ranges for diamond particles with 4 nm average size, which were obtained by detonation synthesis from explosives.
      
The main theoretical aspects of detonation decomposition of powerful mixed explosives with a negative oxygen balance accompanied by the formation of nanodiamonds (ultrafine-dispersed diamonds, UDDs) are described.
      
A new measurement scheme makes it possible to study the conductivity of detonation products of condensed explosives with a time resolution of about 10 ns.
      
The analytical results may be helpful in designing ion mobility increment spectrometers-instruments that detect microadditives of explosives, drugs, and other hazardous materials.
      
A physical model is proposed for the reaction kinetics of heterogeneous explosives under shock-wave initiation of detonation.
      
The model can account for the experimentally observed strong dependence of the shock-wave sensitivity of pressed explosives on their initial density and temperature.
      
An improved method for measuring the electric conductivity profile behind the detonation front in dense high explosives has been developed, which provides for a spatial resolution better than 0.1 mm.
      
The results confirm the hypothesis that subthreshold shock waves induce the transition of crystalline explosives into a semiconductor state.
      
The results of analysis can be used for the development of ion mobility increment spectrometers-devices capable of detecting microscopic amounts of explosives, drugs, and other dangerous substances.
      
This paper discusses the Nonequilibrium Zeldovich-von Neumann-Doring (NEZND) theory of self-sustaining detonation waves and the Ignition and Growth reactive flow model of shock initiation and detonation wave propagation in solid explosives.
      
This process leads to the development of the three-dimensional structure of detonation waves observed for all explosives.
      
The Ignition and Growth reactive flow model of shock initiation and detonation in solid explosives has been very successful in describing the overall flow measured by embedded gauges and laser interferometry.
      
A mechanism of the initiation of hotspots in heterogeneous solid high explosives was considered.
      
Electroconductivity profiles in dense high explosives
      
A method for measuring the electroconductivity profiles behind the detonation front in dense solid high explosives with a resolution of 0.1 mm was developed.
      
Five polymer bonded explosives (PBXs) with the base explosive ε-CL-20 (hexanitrohexaazaisowurtzitane), the most important high energy density compound (HEDC), and five polymer binders (Estane 5703, GAP, HTPB, PEG, and F2314) were constructed.
      
The off-line coupling of SFE and HPLC is used to determine various explosives in debris as well as pesticides in soil.
      
Optimisation of post-column reaction detector for HPLC of explosives
      
Improvements in selectivity and sensitivity in the analysis of common explosives, like nitrate esters, nitramines and nitroaromatic compounds can be achieved by post-column derivatisation in a two step reaction detector.
      
 

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