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Showing 1 to 20 of 38 for “"high iron"”.
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Observation of high iron charge states in solar energetic particle events
… about the source plasma and the acceleration environment. In this thesis, we mainly build on charge state observation of SEP events during late 1997 to 2000 with from Solar Energetic Particle Ionic Charge Analyzer (SEPICA) on board Advanced Composition Explorer (ACE). We concentrate our effort on …
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Regulation of Iron Sequestration Systems in Escherichia Coli and Salmonella Typhimurium (Heme, Outer Membrane)
Regulation of iron uptake systems by iron, growth temperature, and heme was examined. Operon fusions were constructed in which the lactose utilization genes were fused to the promoter of the iron-regulated gene which encodes the colicin I receptor. Regulation by iron was shown to be at the level of …
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Calibrating NMR response to capillary pressure curves in fine grained lithologies: Pretty Hill Formation, Otway Basin
… Study conclusions are that T2 response in high iron content rock is affected by many factors such as magnetic susceptibility, surface relaxivity and aspect ratio. Therefore, using the NMR response to estimate capillary displacement pressures in iron-rich, fine grained rocks is not …
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Feasibility study to extract iron and chromium from chromium contaminated soils
… toxic and hazardous hexavalent chromium, contain high iron concentrations. At some sites, concentrations of iron oxide are higher than 30%. Both iron and chromium in soils have recyclable value provided they can be either concentrated in the oxide form or separated as metal. The concentrated oxide …
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Paleomagnetic Investigation of Enstatite Chondrite Chondrules: Implications for the Solar Nebula
… disk. A magnetic field governed the highly efficient mass and angular momentum transport systems. Paleomagnetic measurements of chondrites have constrained the intensity of the nebular field between ∼3-7 AU. Previous work on two dusty olivine chondrules from high iron enstatite …
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Misregulation of Iron Handling Proteins in Excitotoxic Brain Injury
The increased iron has been implicated as a major generator of reactive oxygen species (ROS), which can cause neuronal death in neurodegenerative diseases. The present study was also carried out to elucidate the expression of iron handling proteins such as divalent metal transporter-1 (DMT1) …
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Iron-dependent regulation of gene expression in Corynebacterium pseudotuberculosis
… to analyse C. pseudotuberculosis within an environment relevant to that which would be encountered within its natural host. The impact of the availability of iron within the growth environment of numerous bacteria has been widely reported, and an equivalent investigation was conducted to …
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Microbial and Chemical Zonation and Mineral Weathering in the Middendorf Aquifer, South Carolina
… activity, most notably aerobic respiration and iron reduction, lead to a net generation of acid as CO2, but reaction of groundwater with minerals in the aquifer consumes the acid, driving up pH and controlling the evolution of the groundwater's major ion chemistry. The thermodynamic energy …
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Design of segmented outer rotor permanent magnet flux switching motor in transverse shape for high torque applications
… gained a lot of attention since the motor has high torque density and power. Outer rotor motors have performance indices that should be taken into consideration because not every machine is effective. Recently, outer rotor hybrid excitation flux switching motor (OR�HEFSM) in salient rotor has …
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Interactions of copper and iron as measured by blood parameters, tissue stores and performance in swine
… requirement is effected by the dietary level of iron and if higher than normal levels of iron are beneficial when high dietary copper levels are fed. A factorial design utilizing 3 levels of copper and 2 levels of iron was used. Diets containing 257 ppm copper when fed to growing pigs tended to …
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Preparation of glass-ceramics largely using steelmaking slags and study on the effect of iron content on properties of glass-ceramics
… using steelmaking industry waste containing high iron content based on powder sintering and crystallization method. Anthracite was used in varying amounts as the reducing agent to recover iron in raw materials. X-ray diffraction analysis (XRD), Fourier Transform Infrared Spectroscopy (FTIR), …
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Gastric remnant carcinoma : histochemical and immunohistochemical profile
… eosin, alcian blue pH 2.5, periodic acid Schiff, high iron diamine and Giemsa stains as well as immunohistochemical methods (eight antibodies against MUCI to MUC6) were used to determine the type of mucin and the pattern of staining in twenty cases of GRC and twenty PGC (ten cases of intestinal …
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Preparation and evaluation of tumour-targeted delivery systems for tocotrienol
… delivery system. Transferrin is an iron transporter whose receptors are often over-expressed in cancer cells due to high iron demand for tumour growth. Conjugation of transferrin to drug delivery systems appeared to be an attractive tool for selective receptor-mediated tumour …
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Cations and activated sludge floc structure
… remained in the effluent of WWTP that received high influent sodium but had low iron and aluminum in floc. However, sludges from plants with high sodium and high iron and aluminum dewatered well and produced high quality effluents, suggesting that iron and aluminum have significant positive …
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The geochemistry of the Olivine Melilitetes and related rocks of Namaqualand Bushmanland, South Africa
… matrix and which are characterized by having high iron and extremely low nickel contents (referred to as HILN olivines) relative to the remaining olivines in the same rock; (b) euhedral and often skeletal (hopper) olivines that are richer in Mg and Ni than HILN olivines in the same rock. Some …
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A study of the functional anatomy of the bovine cervix with special reference to the epithelium, mucus secretion and sperm transport
… (PAS) (neutral mucins) and AB (pH 2.5); (4) high iron diamine (HID) (neutral and sulfomucins) with AB (pH 2.5). Additional samples were processed for ultrastructural examination. The mucosa was characterized by longitudinal primary and secondary folds which maintained continuity throughout …
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Performance of gold catalysts for low temperature water gas shift
… this procedure, gold promoted low (copper) and high (iron oxide) temperature shift catalysts and commercial zinc oxide supports were prepared and tested. A wide spectrum of Au particle sizes were prepared on the supports, ranging from approximately 3-500 nm. The gold promoted LTS catalyst was …
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Advancement of a modular rotor permanent magnet flux switching machine for high torque performance
… lot of attention since the motor must possessed high torque density and power. Permanent magnet flux switching machines have attracted considerable interests in recent years since the flux focusing is utilizable, both armature windings and PM excitation sources are on the stator, and the salient …
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Growth and characterisation of multifunctional nanocomposite coatings
… nanohardness of up to 17.1 GPa, despite having a high iron content of 59 %. Finally, nanoporous nanocomposite coating forms have also been fabricated using a high-pressure/power sputter deposition process in the classical Thornton zone-1 deposition regime, for potential niche applications such as …
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NONHUMAN PRIMATES AS A TRANSLATIONAL MODEL OF ENDOMETRIOSIS AND ITS EFFECTS ON WOMEN'S HEALTH
… lesions are characterized by excess iron content and macrophage infiltration. Despite decades of endometriosis research, little is known about macrophage contribution to disease progression or the systemic effects of endometriosis on other physiologic processes. The project objectives …
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