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Showing 1 to 20 of 142 for “"oxygen content"”.
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Control of the Oxygen Content of the Cover Gas in a Molten Lead-Bismuth Eutectic System
Made available in DSpace on 2017-07-06T18:42:28Z (GMT). No. of bitstreams: 3 Bolind_Alan_M_MS.pdf: 686402 bytes, checksum: dee721ff9ec976d50dc4139bca13cf8b (MD5) Bolind_Alan_M_MS_ABS.pdf: 58527 bytes, checksum: e7e13dc0255f7e28fe3d6ab321d476e2 (MD5) license.txt: 4813 bytes, checksum: …
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The Use of Fast Neutron Activation Analysis for the Determination of the Oxygen Content in Coal and Flyash
Made available in DSpace on 2017-07-06T18:55:58Z (GMT). No. of bitstreams: 3 Raimondi_Patrick_J_MS.pdf: 22509393 bytes, checksum: 4dc51c0691c3c5017421b6bf70e03db5 (MD5) Raimondi_Patrick_J_MS_ABS.pdf: 471162 bytes, checksum: 91aafa880f00f4ee465d601cab0c3eca (MD5) license.txt: 4813 bytes, checksum: …
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The Effects Of Dissolved Oxygen Content Of Water On Blood Ph, Pco4, Po4 And Rocking Activity For Cryptobranchus Alleganiensis
The effects of dissolved O₂ content of water on in vivo blood pH, pCO₂, pO₂ and rocking activity were measured for Cryptobranchus alleganiensis. Measurements were taken at 100%, 75%, 50%, 25%, 20%, 15%, 10% and 0% saturation levels while temperature was held constant at 12°C. Results indicate that …
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Effect of base metal oxygen content and oxygen activity on mechanical properties of EN-GJL- GG - 26 Cu-Cr grey cast-iron heavy-duty crank cases
… emissions. This research investigates how the oxygen content and oxygen activity of the liquid EN-GJL-GG - 26 Cu-Cr Grey Cast Iron metal are affected by holding the metal for a duration of 0 to 24 hours in a closed furnace/inert atmosphere, and how the addition of reactive iron oxide from 0 to …
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Assessing the effects of ethanol addition on particulate matter emissions in GDI engines
… effect, evaporative cooling effect, and oxygen content effect. The displacement effect is based on PM Index (PMI) in the literature. Ethanol has very low PMI and thus very low propensity to form PM. Therefore, the addition of ethanol replaces the high-PMI components in the gasoline, …
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High Pressure Micro-Scale Studies of Fast-Hydropyrolysis and Catalytic Hydrogenation of Biomass and Related Model Compounds
… of biomass followed by catalytic hydrodeoxygenation of bio-oil is considered a promising biomass conversion route to produce drop in hydrocarbon fuels. The H2Bioil process was proposed as an integrated high pressure fast hydropyrolysis and catalytic vapor phase hydrodeoxygenation (HDO) …
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An investigation as to the inconsistencies of the methylene blue reduction test and means of controlling same
The dissolved oxygen content of market milk fluctuates enough to cause a variation in the test.
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Thermal ionization energy of lithium and lithium-oxygen complexes in single-crystal silicon
… optical means to be dependent upon the amount of oxygen in the silicon. It was found that for float-zone crystals, having a relatively low oxygen content (less than 10¹⁶ cm⁻³), the ionization energy was about 32 meV, whereas for a pulled-crucible crystal, having a higher oxygen concentration …
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Thermogravimetric, thermopower, and electrical conductivity studies of the Ba₂YCu₃O₇₋ₓ system
… a p-type semiconductor over the temperature and oxygen activity ranges studied.</p> <p>The conductivity, carrier concentration, and mobility behaviors of the oxide are primarily functions of its oxygen content. All three properties exhibited only a slight temperature dependence. The carrier …
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Antiferromagnetism, ferromagnetism and magnetic phase separation in Bi₂Sr₂O₆â[delta]
… of the magnetic properties as a function of the oxygen content . The oxygen content was varied by annealing single crystals in either a reducing or oxidizing environment to obtain an experimental range of 0.25 =/< [delta] =/< 0.5 and a corresponding average Co valence between +2.5 and +3. We show …
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Investigating Palaeoatmospheric Composition-Climate Interactions
… radiation at Earth’s surface also occur. Oxygen levels may have varied fromas little as 10% to as high as 35% in the Phanerozoic (541Ma – Present). An increase in atmospheric oxygen increases atmospheric mass which leads to a reduction in incident shortwave radiation at Earth’s surface due …
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Partial Upgrading of Lignocellulosic Bio-Oil via Deep Catalytic Hydrotreating
… The bio-oil is composed of a complex mixture of oxygenated compounds with a relatively high concentration of water. Compared to crude oil, bio-oil has high oxygen content, lower energy density, high acidity, high viscosity and water content. Submitting the bio-oil to atmospheric distillation at …
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Validation of tissue oxygen saturation determined by near-infrared spectroscopy in canine models of hypoxemia and hemorrhagic shock
… was to evaluate the relationship between tissue oxygen saturation (StO2) and oxygen delivery index (DO2I). Oxygen delivery index is product of two factors arterial oxygen content (CaO2) and cardiac index (CI). In this study the relationship between DO2I and StO2 was evaluated by manipulating both …
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The reduction of bromate in drinking water by activated carbon
… the presence of organic compounds, the dissolved oxygen content of the solution, and the type of activated carbon used.
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Biomimetic approach to cardiac tissue engineering
… with culture medium supplemented with synthetic oxygen carrier (PFC emulsion). Presence of the PFC emulsion resulted in significantly higher cell density and improved contractile properties compared to the constructs cultivated in the culture medium alone, by increasing total oxygen content and …
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The doping and magnetic field dependence of the heat capacity of yttrium barium copper oxide superconductors
… made on the doping effects in reduced oxygen content YBa2Cu3O7-x. The two most remarkable findings are: 1) there is a rapid decrease of the amplitude of the heat capacity anomaly with the reduction of the oxygen content and 2) the magnitude of the fluctuation effects near the …
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The influence of surface properties on carbon fiber/epoxy matrix interfacial adhesion
… Untreated, commercially surface treated and oxygen plasma treated PAN based carbon fibers were used for study. XPS was used to determine fiber surface chemistry. A two-liquid tensiometric method was conducted to determine fiber surface energy and its dispersion and polar components. SEM was …
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Oxidation barrier and light protective packaging properties for controlling light induced oxidation in milk
… of light protective additives (LPA) with a high oxygen barrier package under fluorescent and LED lighting conditions simulating a retail refrigerated dairy case. The extent of oxidation in 2% milk packaged in polyethylene terephthalate (PET) packages with different light interference properties …
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Study on Low-cost Alternatives for Synthesising Powder Metallurgy Titanium and Titanium Alloys
… aim an approach using Ti HDH powder with a high oxygen content of 0.25wt% was used along with low cost alloying elements such as Fe and stainless steel powders. The maximum alloying element content was limited to 5% and a blended elemental approach for making the alloys was employed. Induction …
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