Increased detector response in optical overfilled measurements due to gas lens formation by nitrogen flow through the entrance aperture

Enhanced titanocene (Cp2TiCl2) based electrocatalytic system for nitrogen reduction was shown, comprising glassy carbon electrode, high level of the catechol redox mediator, optimized binary THF/MeOH solvent and unique design of the reactor having ammonia permeable membrane at the outlet, which allowed constant nitrogen flow through the working solution during entire electrolysis without risk of evaporation of the solvent. Catalytic activity was observed in the potential range of (–1.5)–(–2.3) V, reaching TON of 2.83%, corresponding to the production of 0.566 μmol NH3 (9.64 μg) in 24 h hydrolysis at–2.3 V using 0.02 mmol TiCp2Cl2 (5 mg).

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Digestion of mature pangola grass (Digitaria decumbens) by Bos taurus and Bos indicus cattle

Australian Journal of Agricultural Research ◽

10.1071/ar9860665 ◽

1986 ◽

Vol 37 (6) ◽

pp. 665 ◽

Cited By ~ 2

Author(s):

RA Hunter ◽

BD Siebert

Keyword(s):

Cell Wall ◽

Crude Protein ◽

Bos Taurus ◽

Bos Indicus ◽

Nitrogen Flow ◽

Tropical Grasses ◽

Protein Requirements ◽

Digitaria Decumbens ◽

Significant Difference ◽

Flow Through

The digestion of mature pangola grass (Digitaria decurnbens) by Hereford (Bos taurus) and Brahman (Bos indicus) steers was studied. There was no significant difference between breeds in the digestion of organic matter (OM) and cell wall constituents (CWC). The OM digestibility in the whole tract was 0.59 with 90% of the digestion occurring in the stomachs. There was a significantly (P < 0.05) greater nonammonia nitrogen flow through the abomasum in Herefords (66 g/day) than Brahmans (59 g/day). Likewise the ratio of crude protein digested in the intestines to digestible OM (DCPi:DOMI) was higher (P < 0.05) in Herefords (0.120) than in Brahmans (0.102). In both breeds 66% of the nitrogen associated with the CWC was digested in the whole tract, essentially all digestion occurring in the stomachs. These results for pangola grass, especially the DCPi:DOMI ratios, are compared with the digestion characteristics of other tropical grasses and are discussed in terms of the capacity of tropical grasses to meet the protein requirements of growing cattle.

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Carbon and nitrogen flow through pelagic microheterotrophic communities

South African Journal of Marine Science ◽

10.2989/025776187784522522 ◽

1987 ◽

Vol 5 (1) ◽

pp. 717-734 ◽

Cited By ~ 6

Author(s):

R. C. Newell ◽

C. M. Turley

Keyword(s):

Nitrogen Flow ◽

Carbon And Nitrogen ◽

Flow Through

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Prediction of Gas Flow Through Short and Long 2-D Micro and Nano-Channels Using a Generalized Slip Model

ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels ◽

10.1115/icnmm2008-62266 ◽

2008 ◽

Cited By ~ 2

Author(s):

M. Raisee ◽

N. Vahedi ◽

A. Rostamzadeh

Keyword(s):

Gas Flow ◽

Spectral Element Method ◽

Slip Flow ◽

Spectral Element ◽

Pressure Variation ◽

Numerical Results ◽

Recent Effort ◽

Slip Model ◽

Nitrogen Flow ◽

Flow Through

This paper reports the outcome of our recent effort in prediction of gas slip flow through microchannels. Slip Nitrogen flow through short (L/h = 20) and long (L/h = 2500) microchannels is analyzed and discussed using spectral element method and the generalize slip model boundary condition of Karniadakis and Beskok [1]. The well-known curvature in pressure distribution, due to the compressible behavior of the gas flow, is observed. Comparison of numerical results (for density and pressure variation as well as the slip velocity distribution with the experimental and DSMC data as well as reported numerical results showed that the generalize slip model is able to produce reliable results for both short and long microchannels.

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