Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 11 of 11 for “"ultraviolet-visible spectroscopy (UV-vis)"”.
-
Dispersion of graphene nanoplatelets in water with surfactant and reinforcement of mortar with graphene nanoplatelets
… size with dynamic light scattering (DLS). Ultraviolet-visible spectroscopy (UV-vis) measured the time evolution of the opacity of the suspension. Scanning electron microscopy (SEM) gave a qualitative set of micrographs of the particles taken out of the suspension. The team characterized the …
-
Generation of tunable q-switched erbium-doped fiber laser based on graphite flakes saturable absorber
… microscope (FESEM), energy dispersive X-ray spectroscopy (EDX) and ultraviolet visible spectroscopy (UV-VIS). The result showed that the carbon element on the SA has a very strong peak intensity. The two different EDF coefficient of 6.43 dB/m and 18.93 dB/m (EDF M-5 and EDF I-12) showed a …
-
Analysis of carbonaceous solid deposits from thermal stressing of FAMEs and FAME/diesel blends at different temperatures in a continuous flow reactor
… from the stressed fuels were assessed using ultraviolet visible spectroscopy (UV-Vis) and electrospray ionisation-mass spectroscopy (ESI-MS) in order to provide further insight into the chemical processes preceding deposit formation. The test fuels stressed in this study were an EN 590 …
-
Selective solar absorber materials : nanostructured surfaces via scalable synthesis
… optical properties were characterized using Ultraviolet-Visible Spectroscopy (UV-Vis) and Fourier Transform Infrared Spectroscopy (FTIR) and compared to optical properties of Pyromark®, the industry standard. Reflectance in the IR spectrum of CuO samples was found to increase after initial …
-
Synthesis and characterization of conjugated materials with phosphorus
… via: multi-nuclear magnetic resonance spectroscopy (NMR), melting points (MP), elemental analyses (EA) or high resolution mass spectroscopy (HRMS), ultraviolet-visible spectroscopy (UV-vis) and fluorescence spectroscopy. Some materials were characterized by cyclic voltammetry …
-
Investigation of intermediate layer for Ag/Si metal-semiconductor contacts
… (AFM), four point probe (FPP) measurement and ultraviolet-visible spectroscopy (UV-Vis). The result indicates the RMS roughness was changed with the deposition time. The surface of Pt/Ag becomes rougher as deposition time increases. As deposition time increases, the resistivity shows some …
-
New Chemistry For The Growth Of First-Row Transition Metal Films By Atomic Layer Deposition
… force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), auger electron spectroscopy (AES), X-ray diffractometry (XRD), time-of-flight elastic recoil detection analysis (TOF-ERDA), ultraviolet-visible spectroscopy (UV-Vis), and four-point probe resistivity measurements.</p>
-
Synthesis of coordination complexes and the use of X-ray diffraction data towards the development of refinement of occupancy of spherical atoms (ROSA), a new approach for the determination of atomic partial charges
… and characterized with X-ray crystallography, ultraviolet-visible spectroscopy (UV-Vis), infrared spectroscopy (IR), circular diochroism (CD), nuclear magnetic resonance spectroscopy (NMR), electron paramagnetic resonance spectroscopy (EPR), and elemental combustion analysis. A simple …
-
Bioelectrochemical production of graphene oxide using bacteria as biocatalysts
… of the nanomaterial product using various spectroscopy and microscopy techniques, and 3) analyzing the microbial communities present in the reactors and in the graphite anode biofilm. To quantify the BEGO and estimate production rates, different spectrophotometric and gravimetric methods …
-
Processing Approaches for Maintaining Multifunctionality in Advanced Thermoplastic Composites
… through dynamic mechanical analysis (DMA) and ultraviolet-visible spectroscopy (UV-VIS) respectively. Chapter 5 will address the issue of producing a multilayered filament while containing a functional particle to one of the layered matrices, and the effects of multiple processing methods on …
-
ΔΙΕΡΕΥΝΗΣΗ ΤΗΣ ΔΙΠΛΩΣΗΣ ΤΟΥ ΠΕΠΤΙΔΙΚΟΥ ΣΚΕΛΕΤΟΥ. ΣΥΝΘΕΣΗ ΚΑΙ ΑΝΑΛΥΣΗ ΤΗΣ ΔΙΑΜΟΡΦΩΣΗΣ ΑΝΑΛΟΓΩΝ ΤΟΥ ΚΕΝΤΡΙΚΟΥ ΤΜΗΜΑΤΟΣ ΤΗΣ ΑΓΓΕΙΟΤΕΝΣΙΝΗΣ ΙΙ. ΦΑΣΜΑΤΟΣΚΟΠΙΕΣ UV-VIS ΚΑΙ NMR
… BETWEEN TRP AND NVA(NIC+) HAVE BEENSUCCESSFULLY VISUALIZED BY APPLYING CHARGE TRANSFER MARKERS IN THE LRF MOLECULE (P-GLU-HIS-TRP-SER-TYR-GLY- LEU-ARG-PRO-GLY-NH2) AND ANALOGUES OF ITS CENTRALSEQUENCE, ACCORDING TO THE PROBABILITY OF B-TURN FORMATION. ON THE OTHER HAND,SIDE CHAIN-SIDE CHAIN …