scholarly journals Schloegl’s second model for autocatalysis with particle diffusion: Lattice-gas realization exhibiting generic two-phase coexistence

2009 ◽  
Vol 130 (7) ◽  
pp. 074106 ◽  
Author(s):  
Xiaofang Guo ◽  
Da-Jiang Liu ◽  
J. W. Evans
Keyword(s):  
Lattice Gas ◽  
Phase Coexistence ◽  
Particle Diffusion ◽  
Two Phase

scholarly journals An Ultra Small Angle Scattering Study of Hydrogen in Metals

1982 ◽  
Vol 37 (5) ◽  
pp. 512-516 ◽  
Author(s):  
D. Bader ◽  
H. Rauch ◽  
A. Zeilinger
Keyword(s):  
Lattice Gas ◽  
Angular Position ◽  
Phase Region ◽  
Two Phase ◽  
Interstitial Solution ◽  
Α Phase ◽  
Angle Scattering ◽  
Scattering Study ◽  
Adjustment System ◽  
Better Than

A diffractometer using perfect crystals in symmetric Bragg arrangement, hence being useful for both neutron and X-ray radiation, has been built. The angular resolution of that instrument is better than 1 microradian, which corresponds to a scattering vector resolution of about 10-6 Å-1. This spectrometer was equipped with a laser light adjustment system which is sensitive to the relative angular position of the two perfect crystals. The spectrometer was used for the mea­surement of neutron scattering at very low angles of hydrated niobium and vanadium samples. The experimental results show an anomalously low attenuation of the neutrons when the metal-H sample is within the solubility a region. This property is explained by a lattice gas model of atomic H in the α-phase of the system. In the two phase region (α - β) a stronger attenuation of the neutron beam occurs due to the sample now being in an ordered interstitial solution phase.

Modelling of Slurry-Handling Piping Element Under Interference Conditions

Volume 3 ◽  
2004 ◽  
Author(s):  
Prem Chand ◽  
K. Govinda Rajulu ◽  
Y. Krishna Reddy
Keyword(s):  
Particle Diffusion ◽  
Test Rig ◽  
Jet Pump ◽  
Two Phase ◽  
New Approach ◽  
Jet Pumps ◽  
Flow Through ◽  
Extensive Experimental Data ◽  
Fluid Interaction ◽  
Layer Concept

The paper presents a new approach to predict the two-phase performance of jet-pumps under interference conditions. We limit our study mainly to diffuser and transport regions of the jet pump. The five essential pre-requisites which form the backbone of our approach are a fairly generalized and accurate approach to (i) solid-fluid interaction, (ii) particle diffusion under generalized flow field, (iii) friction factor-Reynolds number equation, (iv) solid-fluid flow through ducts and (v) mixing of primary and secondary jets using the approach of Wang et al. [1] based on boundary layer concept. The extensive experimental data of several research workers along with fresh data generated on specially designed test-rig support the new approach.

Observation of Stripe Superstructure in the β-Two-Phase Coexistence Region of Cholesterol–Phospholipid Mixtures in Supported Membranes

2014 ◽  
Vol 136 (49) ◽  
pp. 16962-16965 ◽  
Author(s):  
Seyed R. Tabaei ◽  
Joshua A. Jackman ◽  
Bo Liedberg ◽  
Atul N. Parikh ◽  
Nam-Joon Cho
Keyword(s):  
Phase Coexistence ◽  
Supported Membranes ◽  
Coexistence Region ◽  
Two Phase

Two-Phase Coexistence in Single-Grain BaTiO3-(Mn0.5Zn0.5)Fe2O4Composites, Via Solid-State Reaction

2009 ◽  
Vol 92 (7) ◽  
pp. 1552-1555 ◽  
Author(s):  
Yaodong Yang ◽  
Shashank Priya ◽  
Jie-Fang Li ◽  
Dwight Viehland
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
Phase Coexistence ◽  
Two Phase ◽  
Single Grain

Raman Spectroscopic Study of Phase Coexistence in Binary Phospholipid Bilayers

2020 ◽  
Vol 75 (1) ◽  
pp. 87-93 ◽  
Author(s):  
Sergey V. Adichtchev ◽  
Konstantin A. Okotrub ◽  
Alexey M. Pugachev ◽  
Irina V. Zaytseva ◽  
Nikolay V. Surovtsev
Keyword(s):  
Raman Line ◽  
Low Frequency ◽  
Phospholipid Bilayers ◽  
Phase Coexistence ◽  
Lipid Phase ◽  
Label Free ◽  
Scanning Calorimetry ◽  
Two Phase ◽  
Raman Spectroscopic ◽  
Raman Scattering Spectra

Binary phospholipid bilayers composed of 1,2-dioleoyl-sn-glycero-3-phosphocholine and 1,2-palmitoyl-sn-glycero-3-phosphocholine (DPPC) were studied by Raman spectroscopy and differential scanning calorimetry (DSC). We examined features in Raman scattering spectra that are sensitive to the lipid phase and, therefore, could indicate the phase coexistence. It was found that the low-frequency half-width of half-maximum (LHWHM) of the 2850 cm−1 Raman line, corresponding to the symmetric CH2 stretching vibrations, unequivocally reveals the coexisting phospholipids in ordered and disordered conformational states, which correspond to ordered and disordered phases coexistence, in the DPPC mole concentration range from 0.4 to 0.9. The phase coexistence in this concentration range was supported by the particular concentration behavior of the ratio between the intensities of the 2880 cm−1 antisymmetric CH2 vibration line and the 2850 cm−1 symmetric one. It was also shown that the spectral shape of the 1300 cm−1 Raman line, corresponding to the CH2 twisting vibrations, is a good indicator for the phase state and phase coexistence in the phospholipid bilayers. Comparison with the DSC curves confirmed that in the DPPC mole concentration range from 0.4 to 0.9, the two phase transition peaks are observed in DSC curve, those positions are independent of the DPPC concentration. The outcome of the study is the robust label-free contactless approach for the detection of the lipid phase separation, which can be realized with the micrometer resolution.

Two-phase coexistence in Fe–Cu alloys synthesized by ball milling

1998 ◽  
Vol 46 (8) ◽  
pp. 2937-2946 ◽  
Author(s):  
L.B. Hong ◽  
B. Fultz
Keyword(s):  
Ball Milling ◽  
Phase Coexistence ◽  
Two Phase ◽  
Cu Alloys
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