Liquid nitrogen
Analysis of Zn I emission lines observed during a spark discharge in liquid nitrogen for zinc nanosheet synthesis
... reproduce the background emission after 50 ns as we did is actually coherent with the information obtained from the modelling of the zinc lines evolution. 5. CONCLUSION Describing accurately the time-evolution of a ...
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Effect of supply conditions of liquid nitrogen on the cryogenic assisted machining of the Ti64 Titanium alloy
... the liquid nitrogen and its flow rate have a significant impact on the tool life and residual ...of liquid nitrogen, cryogenic assistance can significantly increase the tool ...
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Accurate determination of low state rotational quantum numbers (J<4) from planar-jet and liquid nitrogen cell absorption spectra of methane near 1.4 micron.
... HITRAN line positions (at 296K). 1 The standard deviation error of the differences between our line positions and HITRAN values was minimized leading to rms values on the order of 1×10 -3 cm -1 . The steady state was ...
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Tool wear and cutting forces when machining inconel 718 under cryogenic conditions: Liquid nitrogen and carbon dioxide
... Thereafter, Kaynak [12] has investigated the performance of Inconel 718 under cryogenic assistance machining by comparing it with dry and MQL machining conditions. Indeed, during the tests, he chose two nozzles to throw ...
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Study of buoyancy driven heat transport in silicone oils and in liquid nitrogen in view of cooling applications
... The design of superconducting applications must include a cryogenic unit. First, the material must be maintained below its critical temperature, Tc, above which it becomes a normal material (typically, Tc ~ 90 K for ...
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Charging of electron beam irradiated amorphous carbon thin films at liquid nitrogen temperature
... at liquid-nitrogen temperature under focused electron-beam ...at liquid-nitrogen temperature as proven by multi-probe scanning tunneling microscopy and spectroscopy ...
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Synthesis of CdO nanostructures by nano-second pulsed discharges in liquid nitrogen
... from nitrogen lines are detected at any of three discharge voltages used, as reported in other work involving discharges in liquid nitrogen ...
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Design and analysis of a liquid nitrogen delivery system for cooling a high temperature superconducting magnet for MAGLEV
... From tests performed on the prototype system, the actual LN2 flow rate from the delivery system, evaporation rate due to the heat transfer through the cryostat and[r] ...
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Convective heat transfer model for determining quench recovery of high temperature superconducting YBCO in liquid nitrogen
... In this thesis work, stability of coated YBCO conductor samples were studied both experimentally and analytically. Each test sample, 10-cm or 15-cm long and cooled direct[r] ...
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Ammonia removal using biotrickling filters Part b Determination of the nitrogen accumulation in the scrubbing liquid at a livestock facility using electrical conductivity measurement
... ChemEngineering 2020, 4, 50 2 of 12 NO 2 − and nitrate NO 3 − ), which can limit the ammonia transfer rate. To avoid this accumulation, part of the recirculating water can be discharged and replaced with fresh water. ...
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Measuring techniques in gas–liquid and gas–liquid–solid reactors
... In multiphase reactors, an exact description of the ow behaviour by CFD is usually still impossible and the design of these reactors usually relies on empirical correlations of a number of characteristics of ...
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Measuring techniques in gas–liquid and gas–liquid–solid reactors
... measure liquid holdup with an absolute accuracy of 3% for typical measuring time less than 2 h for a column of 60 cm in ...the liquid holdup in a trickle ow con ...or liquid ow distribution with a ...
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Liquid water on Mars
... environment on the Red Planet’s surface. The air pressure is so low that to survive there we would need almost a full space suit. In addition it gets very cold. On a summer’s day the temperature may rise to a comfortable ...
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Preliminary Assays on Electrochemically Modulated Liquid-liquid Extraction of Metformin
... ABSTRACT: Liquid-liquid extraction is one of the analytical methods that is commonly used for separation of various ...modulated liquid-liquid extraction (EMLLE) method as a sample preparation ...
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Simulations employing finite element methods at liquid|liquid interfaces
... 2. Charge transfer simulations at an ITIES While conventional electrochemistry operates at a solid|liquid interface, e.g. metal (Pt, Au, etc.) or carbon, fundamentally analogous charge transfer reactions can take ...
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Dynamics of liquid-liquid phase separation of wheat gliadins
... a liquid-like state at 20 °C for concentrations as high as 450 g/L revealing a net repul- sion in the condensed system 27 ...a liquid-like state over an extended range of concentration (from 10 to 500 g L ...
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How Topological Rearrangements and Liquid Fraction Control Liquid Foam Stability
... formed thick film is created between the two bubbles (colored patterns), and as < crit , the transient film breaks at the edge, close to connected PBs. A model of this mechanism is proposed for the 3D foam as for ...
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Pretreatment of Fuller's earth with nitrogen
... the nitrogen coming out of the other side was injected into a water ...injected nitrogen would replace a portion of the air present in the room, cause a drop-in oxygen content, and an accumulation of carbon ...
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Assessing future nitrogen deposition and carbon cycle feedback using a multimodel approach: Analysis of nitrogen deposition
... growth is also expected over the already heavily depos- ited regions of Europe and North America; in particular, model results (except for GISS) indicate a large increase of nitrogen deposition over western ...
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Biogeographical controls on the marine nitrogen fixers
... 4. Discussion [ 22 ] As previously noted [Falkowski, 1997; Falkowski et al., 1998; Moore et al., 2006, 2009], our model study shows that high iron requirement (and Fe:P ratio) of marine diazotrophs causes iron to be a ...
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