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Full-Text Articles in Other Engineering
Connecting Quantum Dots And Bionanoparticles In Hybrid Nanoscale Ultra-Thin Films, Ravisubhash Tangirala, Yunxia Hu, Maisie Joralemon, Qingling Zhang, Jinbo He, Thomas P. Russell, Todd S. Emrick
Connecting Quantum Dots And Bionanoparticles In Hybrid Nanoscale Ultra-Thin Films, Ravisubhash Tangirala, Yunxia Hu, Maisie Joralemon, Qingling Zhang, Jinbo He, Thomas P. Russell, Todd S. Emrick
Todd S. Emrick
Ligand-functionalized CdSe quantum dots and nanorods, and horse spleen ferritin bionanoparticles, were co-assembled at an oil-water interface, then used in polymerization at the interface, effectively cross-linking the assembled mixtures of nanoparticles into robust structures. Both ring-opening metathesis polymerization (ROMP), and imine formation, proved suitable for preparation of the desired ultra-thin films in the form of capsules and sheets. The nanoparticle-based films prepared by ROMP exhibit chemical stability, while those prepared by aldehyde-amine coupling could be disrupted by addition of acid. Characterization of these hybrid nanoparticle-based materials, using transmission electron microscopy (TEM) and fluorescence confocal microscopy, confirmed the presence of both …
Analytical Modeling Of Tree Vibration Generated During Cutting Process, Payman Karvanirabori
Analytical Modeling Of Tree Vibration Generated During Cutting Process, Payman Karvanirabori
Masters Theses 1911 - February 2014
There are several ways to cut down a tree. The piece by piece cutting method is studied in this research. By modeling the cutting process into simple dynamic models and obtaining governing equations of motion of tree and cut piece in each model, the forces during cutting process were calculated. The method was then applied to a set of real data and tree vibrations were compared with field measurements. The study is very rare in the case of the variety of the topics it covers from dynamics and mechanics to finite element modeling of a biological system.