Materials Literature
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U ovoj doktorskoj disertaciji ispitivana su magneto-električna svojstva kompozitnih\nmaterijala koji se sastoje od magnetne faze, nikl-cink ferita, i feroelektrične faze, barijum titanata\nu razlicitim masenim odnosima. Maseni odnosi ovih faza su menjani u cilju dobijanja\nkompozitnog materijala dobrih magnetnih i ele…
This is Video S2 in Ghaffarizadeh et al. (2018). A higher-resolution (1080p) video can be streamed at https://www.youtube.com/watch?v=xrOqqJ_Exd4 Paper: https://doi.org/10.1371/journal.pcbi.1005991 3-D agent-based simulation of a hanging drop spheroid experiment. In this simulation, cells have a pO2-dependent probabil…
Thin-film photovoltaics are of great interest due to decreased manufacturing costs, improved environmental sustainability and the potential for flexible, semi-transparent, and light-weight modules. The scientific literature contains a plethora of work incorporating wavelength scale nanostructures within thin-film sola…
With the passage of time and the advancement of our industrial civilization, environmental concerns have become more and more recognized since the 1990s. Carbon dioxide reduction reactions are capable of converting carbon dioxide into valuable hydrocarbons and reducing the carbon emission from the combustion of fossil…
The construction of materials from nanocrystal building blocks represents a powerful new paradigm for materials design. Just as nature’s materials orchestrate intricate combinations of atoms from the library of the periodic table, nanocrystal “metamaterials” integrate individual nanocrystals into larger architectures…
Current chemotherapy causes a host of side effects and better delivery of drugs to tumors is required to reduce this. Nanocarriers have been proven to not only deliver better to tumors but also solubilize more drugs in the core, with flexible ‘filomicelles’ being particularly effective. They are still open to improvem…
Thesis: S.B., Massachusetts Institute of Technology, Department of Nuclear Science and Engineering, 2017.
Up to now, the mechanisms of surface nucleation and surface-induced texture formation are far from being understood. Corresponding phenomena are discussed hypothetically or even controversial, and related studies are restricted to very few glasses. As a main drawback, the vast majority of previous work on oriented gro…
Identifying the small fatigue crack (SFC) driving force of polycrystalline engineering alloys is instrumental in correlating the inherent microstructure variability and the scatter exhibited by SFC during the early stage of propagation. By utilizing synchrotron images of a SFC propagating through a beta-metastable tit…
The analysis of the temperature variation of the optical absorption spectra of the ordered defect compound CuGa3Te5, a semiconducting material which crystallizes in a chalcopyrite-related structure with space group P¹4 2c, is made. It has been established that this compound has a direct-allowed band gap between parabo…
Intumescent formulations based on lignin & ammonium polyphosphate (APP) were studied previously. This work is dedicated to lignin/Zinc Phosphinate combination to improve flame retardant properties of PA11 in order to develop sustainable flame retardant textile. Lignin has the advantage of being bio-based compound, can…
학위논문 (박사)-- 서울대학교 대학원 공과대학 재료공학부, 2017. 8. 김현이.
published
185 cracks were initiated in a soda-lime-silica glass by Vickers indentation and grown under controlled dry nitrogen atmosphere. Direct observation of subcritical crack growth (SCCG) upon indentation was performed using a video camera with an image acquisition rate of 3 ms. The results show that the validity of K(c) r…
Nano conjugates, composites of inorganic nanomaterials and bio molecules such as DNA, RNA and proteins, establish a sequence of wide varieties of nano-bio boundaries. The formation of these boundaries strongly depends on bio physicochemical reaction of biomolecules coated on the surface of nanomaterials. I am investig…
Chemical looping reforming (CLR) and chemical looping combustion (CLC) are promising technologies with inherent CO2 capture for transforming fuels into syngas and energy respectively. Circulating oxygen carriers (OC) are used to transfer oxygen from mostly air to the fuel inside the process. Over the past years a vari…
Les soieries sont faites de l’entrelacement de fils associant des filaments proteiniques produits par divers arthropodes. A partir du IVe millenaire av. J.-C., l’industrie sericicole mondiale s’est developpee autour de l’elevage et du traitement des cocons de l’un d’entre eux, le Bombyx du murier, Bombyx mori L., un l…
Se sintetizaron recubrimientos de HfN sobre vidrio Corning por la técnica de erosión catódica. Se realizaron tratamientos térmicos post-depósito a 300 °C, 400 °C y 500 °C para obtener recubrimientos compuestos de HfN/HfO2, y analizar cambios en la dureza y transmitancia en función de su microestructura. Los recubrimie…
In this Ph.D. thesis, I have investigated the spectroscopic and photodynamical properties of different molecular systems as well as a series of nanomaterials known as “Metal-Organic Frameworks” (MOFs). I explored in “real time” the photophysical and photochemical processes that take place in the excited state of these…
Abstract. Purpose. Development of a new microalloying system for railwheels with a high level of technical and operational properties. Methodology. Analytical studies, smelting of small ingots in laboratory conditions, microstructural studies using light microscopy. Results. Analytical research of the influence of the…