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Articles 151 - 155 of 155
Full-Text Articles in Engineering
Batch And Continuous Studies Of Chlorella Vulgaris In Photo-Bioreactors, Claudia Sacasa Castellanos
Batch And Continuous Studies Of Chlorella Vulgaris In Photo-Bioreactors, Claudia Sacasa Castellanos
Electronic Thesis and Dissertation Repository
Microalgae are unicellular, photosynthetic microorganisms, they have minimal nutrient requirements and are being used as source materials for a variety of products such as protein rich nutritional supplements, pharmaceutical chemicals and pigments (used in food and cosmetics). They also grow extremely fast, in comparison to plants and many microalgae strains are exceedingly rich in oil which makes them great candidates for the production of biodiesel. The strain Chlorella vulgaris, has shown a great promise as a source of oil and as being able to help in the treatment of wastewater. Despite all the advantages , the high cost of …
Developing Electrochemical Biosensors For Point-Of-Care Diagnostics Of Cardiovascular Biomarkers, Yang Cheng
Developing Electrochemical Biosensors For Point-Of-Care Diagnostics Of Cardiovascular Biomarkers, Yang Cheng
Electronic Thesis and Dissertation Repository
Troponin is known as a type of reliable biomarker for the detection of cardiac disorders. Cardiac troponin I (cTnI), as a subunit of troponin, is highly sensitive to cardiac injury; therefore, the cTnI level is used as an index to diagnose myocardial damage, particularly acute myocardial infarction. It can be also used in cardiospecific diagnosis, risk stratification therapeutic treatment and post risk management. In this research, an amperometric immunosensor was developed based on planar electrode and sandwich ELISA format. The electrical response corresponding to biological information was obtained via four main procedures, including electrode modification, immunoreaction, signal amplifications and amperometric …
Change In Pore Size Distribution Of Compacted Soil Layers And Its Effect On Solute Breakthrough Curves, Sara Karimi
Change In Pore Size Distribution Of Compacted Soil Layers And Its Effect On Solute Breakthrough Curves, Sara Karimi
Electronic Thesis and Dissertation Repository
It is often useful to predict contaminant migration from waste containment systems, such as landfills, as part of the assessment of the overall impact of such systems on the receptor environment. In many instances, material properties, for example, those of the liner, are assumed to be constant. This study was conducted to evaluate the accuracy of considering constant material and transport parameters in the modelling of sodium and chloride breakthrough curves through a compacted soil layer using the commercial software, Pollute v.7. Experiments were conducted with three different mixtures of glass beads and varying amounts of kaolinite (30, 40 and …
Development Of Novel Nano-Structured Materials With Low-Cost And High Stability For Pem Fuel Cell, Dongsheng Geng
Development Of Novel Nano-Structured Materials With Low-Cost And High Stability For Pem Fuel Cell, Dongsheng Geng
Electronic Thesis and Dissertation Repository
Polymer electrolyte membrane fuel cells (PEMFCs) are non-polluting and efficient energy conversion devices that are expected to play a dominant role in energy solutions of the future. However, due to high cost and known degradation issue of Pt electrocatalyst, more durable, efficient, and inexpensive electrocatalysts are required before fuel cells can become commercially viable. This research is revolving around the development of electrocatalysts such as non-noble metal oxygen reduction reaction (ORR) catalyst, new alternative supports, and novel Pt nanostructures to address the above-mentioned challenges in PEMFCs.
Firstly, we report the synthesis of nitrogen doped carbon nanotubes (CNx) and …
Vibration And Buckling Of Carbon Nanotube, Graphene, And Nanowire, Mohammad Hadi Mahdavi
Vibration And Buckling Of Carbon Nanotube, Graphene, And Nanowire, Mohammad Hadi Mahdavi
Electronic Thesis and Dissertation Repository
Nanostructured materials with superior physical properties hold promise for the development of novel nanodevices. Full potential applications of such advanced materials require accurate characterization of their physical properties, which in turn necessitates the development of computer-based simulations along with novel experimental techniques. Since controlled experiments are difficult for nanoscale materials and atomic studies are computationally expensive, continuum mechanics-based simulations of nanomaterials and nanostructures have become the focal points of computational nano-science and materials modelling.
In this study, emphasis is given to predicting the mechanical behaviour of carbon nanotube (CNT), graphene, nanowire (NW), and nanowire encapsulated in carbon nanotube (NW@CNT), which …