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Full-Text Articles in Engineering
Characterization Of Lignin And Cellulose Biopolymers Structure – Function Relationships, Zachariah Pittman
Characterization Of Lignin And Cellulose Biopolymers Structure – Function Relationships, Zachariah Pittman
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Biomass is vital to ongoing efforts to secure a sustainable future. While many of our efforts focus on finding alternative forms of energy, biomass among them, only biomass has the potential to serve as a sustainable materials feedstock. However, biomass is heterogenous, complicating the upgrading processes needed to manufacture commodity and performance products. For example, plant biomass consists largely of cellulose, a crystalline polysaccharide, and lignin, a highly stable polyaromatic. The specific properties of cellulose and lignin depend greatly on the plant, harvesting conditions, and isolation procedures. Thus, accurate and reliable determination of the fundamental properties of biomass is crucial …
Modeling Of Algal Productivity And Diel Oxygen Profiles In The Partitioned Aquaculture System, Caye M. Drapcho
Modeling Of Algal Productivity And Diel Oxygen Profiles In The Partitioned Aquaculture System, Caye M. Drapcho
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Fish production in pond culture systems is often limited by the dissolved oxygen (DO) concentration. Algal biomass and productivity, which greatly impact the DO concentration, are difficult to control in traditional pond systems. The Partitioned Aquaculture System (PAS) was designed to increase fish production by managing algal productivity and DO through control of algal cell retention time, water depth, and mixing. The objectives of this study were 1) to determine impact of culture conditions on algal productivity, 2) develop a model of algal productivity and diel DO levels, and 3) to predict the maximum fish production attainable with the PAS. …