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 13 of 13 for “"environmental scanning electron microscope (ESEM)"”.
-
Transmission-mode imaging in the environmental scanning electron microscope (ESEM)
Electron microscopy was first conducted in the 1930s with the advent of the TEM and later the STEM. In 1969, the first commercial SEM was released, with the possibility of retrofitting it to behave like a STEM following soon afterwards. In 1979, Danilatos and Robinson advanced electron microscopy …
-
Laboratory characterization of a highly weathered old alluvium in San Juan, Puerto Rico
… also used a variety of techniques including environmental scanning electron microscope (ESEM), slaking tests, CEC, and SCD of Fe-oxides. The results reveal an aggregate structure comprising groups of clay platelets, which each consist of clay particles associated with face-to-face contact. …
-
Morphology Tuning and Mechanical Properties of Nanoporous Gold
… to 30 nm using in situ tensile testing under an environmental scanning electron microscope (ESEM). A specially designed tensile stage and sample holders are used to deform the sample inside the ESEM, allowing us to observing both the macro and microscopic structure changes. Our experimental …
-
Thermophysical Properties and Microstructural Changes of Composite Materials at Elevated Temperature
… were measured with a simultaneous differential scanning calorimeter (DSC) / thermogravimetric analyzer (TGA). Experimental techniques were developed for quantitative specific heat measurement based on ASTM standards with modifications for accurate measurements of decomposing materials. An …
-
Nanoscale surface modification of wood veneers for adhesion
… (PEI) was adsorbed. Both X-ray photoelectron spectroscopy (XPS) and Carbon-Nitrogen-Sulfur analyzer (CNS) were used to quantify the amount of charged polymer on wood surfaces to elucidate optimal pH and ionic strength for polyelectrolyte adsorption. Confocal laser scanning microscopy …
-
Scanning Methods as Monitoring, Verification, and Accounting tools for CO₂ Sequestration in Unconventional Gas Reservoirs
… analysis. Analyses of coals performed by both environmental scanning electron microscope (ESEM) and micro CT demonstrate that distributions of cleat porosity in coals are anisotropic and not correlated to the seam depth or location. ESEM is used with micro CT scanning to verify the results …
-
Effect of carbon based nanoadditives on external gear pump performance
… potential structural changes in the additives, environmental scanning electron microscope (ESEM) images of the additives were obtained before and after extended run periods within the pump. The results indicate that graphite and CNTs retained significant resilience, i.e. no breakage and …
-
Effect of intermediate solvents on poly(ether ether ketone)
… as revealed by optical microscopy, differential scanning calorimetry (DSC), and wide angle X-ray scattering (WAXS). Dynamic solvent uptake measurements were performed on each film with the three solvents. Methylene chloride swelled both amorphous and semi-crystalline PEEK to high degrees, while …
-
Utilization of municipal solid waste incinerator fly ash in cement mortars
… and physical analyses, observation under Environmental Scanning Electron Microscope (ESEM), and X-ray fluorescence (XRF) and X-ray Diffraction (XRD) analyses. Results showed that both raw and fractionated fly ashes significantly enhanced compressive strengths of mortar specimens. Attempts …
-
Evaluation of process-structure-property relationships of carbon nanotube forests using simulation and deep learning
… this research, computational modelling, in-situ electron microscopy for CNT synthesis, and data-driven and high-throughput deep convolutional neural networks are employed to not only accelerate implementing CNTs in various applications but also to establish a framework to make validated …
-
The colonialisation of paint films by microorganisms in the UK and Norway
… bed system against Aureobasidium pullulans. The Scanning Electron Microscope (SEM) and Environmental Scanning Electron Microscope (ESEM) provided visual evidence that in the case of Aureobasidium pullulans, fungal hyphae penetrated the paint film by the dissolution of the paint binder rather than …
-
Atomistic Characterization and Modeling of the Deformation and Failure Properties of Asphalt-Aggregate Interface
… devices, e.g. High Resolution Optical Microscope (HROM), Environmental Scanning Electron Microscope (ESEM), Transmission Electron Microscope (TEM), Focused Ion Beam (FIB), and Atomistic Force Microscope (AFM). Second, based on the multiscale devices characterization of the interfaces, a …
-
In operando SEM for the accelerated exploration of nanomaterials and their scalable device integration
… However, the reliable production of high-quality electronics-grade material remains non-trivial, owing to the large parameter spaces and complex reaction mechanisms underlying such processes. Traditional ex situ microscopies, which rely on post-mortem characterisation of nanomaterials, offer …