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Full-Text Articles in Engineering
Modeling The Costs Of Cellulosic Biofuel, Maxwell Berube
Modeling The Costs Of Cellulosic Biofuel, Maxwell Berube
Honors College
This thesis seeks to establish the private and external costs of the production of cellulosic biofuel from woody biomass. A model is presented which explores the economic feasibility of a firm producing this biofuel using a particular process. Specifically, it examines the input costs including the external costs of transportation, the external cost of pollutants produced by the firm, and potential cost reductions that may be applied as a result of learning from accumulated experience. In order to evaluate the feasibility of the plant, a spreadsheet model is built and a Monte Carlo simulation is run in order to evaluate …
Avoiding Aggregation During Drying And Rehydration Of Nanocellulose, Evelyn Fairman
Avoiding Aggregation During Drying And Rehydration Of Nanocellulose, Evelyn Fairman
Honors College
Nanocellulose has attracted attention from academic researchers and industrial corporations worldwide. It is a sustainable raw material with remarkable strength and rheological properties. The industrial production of nanocellulose is an aqueous process; however, many of its valuableproperties are lost upon water removal. Indeed, once dried, nanocellulose irreversibly assembles into a plastic-like material. Currently it can betoo expensive to transport the aqueous suspensions. In order to mitigate high transportation costs, a methodmust be developed to dry and rehydrate nanocellulose whilst maintaining its nano-morphology. The current work demonstrates that the introduction of a cationic surfactant into the aqueous nanocellulose suspensionyields a chemical …
The Finite Element Analysis And Optimization Of A Circumcision Device For Hiv Prevention In Sub-Saharan Africa, Abraham W. Hamilton
The Finite Element Analysis And Optimization Of A Circumcision Device For Hiv Prevention In Sub-Saharan Africa, Abraham W. Hamilton
Honors College
Millions of people around the world are affected by HIV. Studies have demonstrated that the circumcision of heterosexual males leads to an approximate 60% reduction in the potential for the contraction of the virus from a female partner. Current surgical circumcision techniques are not feasible on the required scale in remote settings. An innovative solution is needed. The goal of this project is to develop a safe and effective device for large-scale circumcision efforts in remote regions of sub-Saharan Africa. This thesis will focus specifically on the analysis and optimization of the device. A full scale finite element analysis of …
Surface Acoustic Wave-Based Manipulation Of Intracellular Structures In Adherent Cultured Cells, Jeffrey Servetas
Surface Acoustic Wave-Based Manipulation Of Intracellular Structures In Adherent Cultured Cells, Jeffrey Servetas
Honors College
A method for manipulating constituents of cells through the use of surface acoustic wave (SAW) devices is investigated. Cells are allowed to adhere to the gold surface of a SAW device, and the device is then operated at low power, with the intention of altering the distribution or activity of intracellular structures or organelles, while avoiding damage, or cell death. The method is compared to alternatives, such as optical tweezers, and pulsatile electrical stimulation.