Physicomathematical Modeling of Ignition of a Heterogeneous Mixture of Methane, Hydrogen, and Coal Microparticles

2018 ◽  
Keyword(s):  
Heterogeneous Mixture ◽  
Coal Microparticles

Autoantibodies to Phospholipids and to the Coagulation Proteins in AIDS

1997 ◽  
Vol 77 (05) ◽  
pp. 0856-0861 ◽  
Author(s):  
N Abuaf ◽  
S Laperche ◽  
B Rajoely ◽  
R Carsique ◽  
A Deschamps ◽  
...  
Keyword(s):  
Lupus Erythematosus ◽  
Antiphospholipid Antibodies ◽  
Blood Donors ◽  
Heterogeneous Mixture ◽  
Systemic Lupus ◽  
Hematological Disorders ◽  
False Positive Test ◽  
Glycoprotein I ◽  
Coagulation Proteins ◽  
Hiv 1

SummaryIn HIV-1 infection, an increased prevalence of anticardiolipin autoantibodies (aCL) and lupus anticoagulant (LA) has been described. In order to see if these antibodies are isolated or, like in autoimmune diseases, associated with hematological disorders and with antibodies to other phospholipids and to proteins of coagulation, we investigated 3 groups of patients: 1. 342 HIV-1 infected patients, 2. 145 control patients including 61 systemic lupus erythematosus (SLE) patients, 58 patients with a connective tissue disease, 15 patients with stroke, 11 patients with syphilis and 3.100 blood donors. In HIV-1 infection antiprothrombin (aPrT) antibodies were present in 25% of patients, the prevalence of antiphosphatidylcholine antibodies (aPC) (50%) was almost as high as aCL (64%), and 39% had both antibodies. Absorption on liposomes of the latter revealed an heterogeneous mixture of aCL and aPC or cross-reacting antibodies. In contrast with SLE, anti-β2-glycoprotein I (4%), LA (1%), biological false positive test for syphilis (0.3%), thrombosis (p <0.001) were uncommon. In HIV-1 infection, antiphospholipid antibodies do not associate with features linked to them in SLE or syphilis.

scholarly journals Ambient Aerosol Measurements in Different Environments

Atmosphere ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 429
Author(s):  
Aikaterini Bougiatioti ◽  
Evangelia Kostenidou
Keyword(s):  
Particulate Matter ◽  
Anthropogenic Sources ◽  
Heterogeneous Mixture ◽  
Ambient Aerosol

Particulate matter (PM) in the atmosphere has diverse natural and anthropogenic sources, and is a complex, heterogeneous mixture [...]

A simple method for decomposing fracture‐induced anisotropy

Geophysics ◽  
1991 ◽  
Vol 56 (8) ◽  
pp. 1275-1279 ◽  
Author(s):  
J. A. Hood
Keyword(s):  
Anisotropic Media ◽  
Heterogeneous Mixture ◽  
Induced Anisotropy ◽  
Simple Method

A heterogeneous mixture of isotropic elements may appear homogeneous and anisotropic when the scale of its fabric is smaller than the seismic wavelengths that measure it (Backus, 1962). These fabrics can result from thin layering or from oriented microcracks or fractures. In many situations the anisotropy is quite complex, resulting, for example, from fractures in previously anisotropic media. Since these anisotropies combine, the effect of each must be separated to permit the study of either the fractures or the preexisting anisotropy.

Dip Coating From Density Mismatching Mixture

2021 ◽  
Author(s):  
Bashir Khoda ◽  
AMM Nazmul Ahsan ◽  
SM Abu Shovon
Keyword(s):  
Thin Film ◽  
Particle Size ◽  
Volume Fraction ◽  
Steel Wire ◽  
Cost Effective ◽  
Dip Coating ◽  
Solid Loading ◽  
Heterogeneous Mixture ◽  
Inorganic Particles ◽  
Inorganic Particle

Abstract Solid transfer technology from mixtures is gaining ever-increasing attention from materials scientists and production engineers due to their high potential in near net-shaped production of cost-effective engineering components. Dip coating, a wet deposition method, is an effective and straightforward way of thin-film/layers formation. The dipping mixtures are often embedded with inorganic fillers, nanoparticles, or clusters (d&lt;30 nm) that produce a thin film ranging from nm to couple microns. An increase in the volume of solid transfer by the dipping process can open-up a novel 3D near-net-shape production. However, adding larger inorganic particle size (&gt;1µm) or adding a higher solid fraction will increase the solid transfer but may result in a multi-phase heterogeneous mixture. In this work, the physical mechanism of an increased volume of solid transfer with a larger spherical particle size (&gt;5 µm) is investigated. Polymer-based glue and evaporating solvent are mixed to construct the liquid carrier system (LCS). Moderate volume fraction of inorganic particles (20% &lt; ?p &lt; 50%) are added into the LCS solution as solid loading. Three levels of binder volume fraction are considered to investigate the effect of the solid transfer. Cylindrical AISI 304 steel wire with dia 0.81 mm is dipped and the coating thickness, weight, and the surface packing coverage by the particles are measured in our lab. The results presented the influence of volume fraction of inorganic particle and glue composition on the solid transfer from the heterogeneous mixture.

scholarly journals The molecular mechanism of the inherited phosphofructokinase deficiency associated with hemolysis and myopathy

Blood ◽  
1980 ◽  
Vol 55 (4) ◽  
pp. 629-635
Author(s):  
S Vora ◽  
L Corash ◽  
WK Engel ◽  
S Durham ◽  
C Seaman ◽  
...  
Keyword(s):  
Molecular Basis ◽  
Direct Evidence ◽  
The Other ◽  
Heterogeneous Mixture ◽  
Muscle Type ◽  
Crossover Point ◽  
Normal Human ◽  
Phosphofructokinase Deficiency ◽  
2,3 Dpg ◽  
Chromatographic Profiles

Normal human erythrocyte phosphofructokinase (ATP:c D-fructose-6, P-1- phosphotransferase, EC 2.7.1.11; PFK) has recently been shown to consist of a heterogeneous mixture of five tetrameric isozymes: M4, M3L, M2L2, ML3, and L4 (M, muscle type; L, liver type). In the light of these findings, we have investigated the molecular basis of the inherited erythrocyte PFK deficiency associated with myopathy and hemolysis (Tarui disease). The propositus, a 31-yr-old male, suffered from muscle weakness and myoglobinuria on exertion. He showed mild erythrocytosis despite laboratory evidence of hemolysis. In his erythrocytes a metabolic crossover point was found at the level of PFK; 2,3-diphosphoglycerate (2,3-DPG) was also significantly reduced. The PFK from the patient's erythrocytes consisted exclusively of the L4 isozyme, and there was a complete absence of the other four. The leukocyte and platelet PFKs from the patient showed normal activities, chromatographic profiles, and precipitation with anti-M4 antibody. These studies provide direct evidence that in Tarui disease the M-type subunits are absent; but the liver- and platelet-type subunits of PFK are unaffected. The paradox of mild erythrocytosis despite hemolysis reflects the decreased production of 2,3-DPG.

scholarly journals Emission of Greenhouse Gases and Odorants from Pig Slurry - Effect on the Environment and Methods of its Reduction

2018 ◽  
Vol 25 (3) ◽  
pp. 383-394 ◽  
Author(s):  
Marta Marszałek ◽  
Zygmunt Kowalski ◽  
Agnieszka Makara
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Nitrous Oxide ◽  
Greenhouse Gases ◽  
Atmospheric Pollutants ◽  
Gaseous Pollutants ◽  
Pig Slurry ◽  
Heterogeneous Mixture ◽  
Liquid Fertilizer ◽  
Emission Of Greenhouse Gases

Abstract Pig slurry is classified as a natural liquid fertilizer, which is a heterogeneous mixture of urine, faeces, remnants of feed and technological water, used to remove excrement and maintain the hygiene of livestock housing. The storage and distribution of pig slurry on farmland affect the environment as they are associated with, among others, the emission of various types of gaseous pollutants, mainly CH4, CO2, N2O, NH3, H2S, and other odorants. Methane (CH4), carbon dioxide (CO2) and nitrous oxide (N2O) are greenhouse gases (GHGs) which contribute to climate change by increasing the greenhouse effect. Ammonia (NH3) and hydrogen sulfide (H2S) are malodorous gases responsible for the occurrence of odour nuisance which, due to their toxicity, may endanger the health and lives of humans and animals. NH3 also influences the increase of atmosphere and soil acidification. The article presents the environmental impact of greenhouse gases and odorous compounds emitted from pig slurry. Key gaseous atmospheric pollutants such as NH3, H2S, CH4, CO2 and N2O have been characterized. Furthermore, methods to reduce the emission of odours and GHGs from pig slurry during its storage and agricultural usage have been discussed.

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