Materials Literature
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Folded zoom lenses offer an interesting opportunity for a review of patent literature: they are of a reasonable complexity that the designs are likely to be instructive, they offer a small range of design constraints because of the standardization of CMOS imager sizes and the mechanical constraints imposed on DSC came…
The skew aberration is a form of polarization aberration causes a rotation of polarization states across the pupil. Skew aberration is intrinsic to the optical system depending on the ray path only and whose magnitude is independent of the coatings or other polarization effects. Skew aberration has a much greater effe…
There is compelling evidence for the critical role of twin boundaries in imparting the extraordinary combination of strength and ductility to nanotwinned metals. This paper presents a study of the thermal expansion of coherent twin boundaries (CTBs) at finite temperature by way of atomistic simulations. The simulation…
Aqueous solutions of oxalato- and citrato-VO(2+) complexes are prepared, and their ligand exchange reaction is investigated as a function of the amount of citrate present in the aqueous solution via continuous-wave electron paramagnetic resonance (CW EPR) and hyperfine sublevel correlation (HYSCORE) spectroscopy. With…
A template-free synthesis method for mesoporous and macro-/mesoporous hierarchically porous silicates with remarkable structural tunability and complexity is presented. SiO2 nanocolloids having diameters of 3.0-29 nm were prepared as a primary building block by using extended Stöber synthesis, and they were subsequent…
We study the hot-electron noise properties of two-dimensional materials with a graphene-like energy dispersion under a strong applied electric field which drives the system far from equilibrium. Calculations are based on a Boltzmann--Green-function method within a two-relaxation-time approximation that allows for both…
ABSTRACT The effect of glass fiber (GF) on the electrical resistivities of polyoxymethylene (POM)/maleic anhydride‐grafted polyethylene (MAPE)/multiwalled carbon nanotube (MWCNT) composites is investigated. The POM/MAPE/MWCNT composites at a MWCNT loading of 0.75% are nonconductive because most of MWCNTs are isolated…
Nanostructured TiO 2 particles with different morphologies obtained by a universal method.
Size effect of MOCVD grown InAs QDs to use as charge storage nodes in non-volatile flash memory applications.
The emergence of freeform surfaces in optical systems creates a need for new methodologies. We present a new analysis tool to facilitate spectrometer designs that leverage freeform surfaces.
Using Nodal Aberration Theory the aberration fields induced by a freeform surface in an optical system are explored and experimentally validated with the design and implementation of an aberration generating telescope.
Collection of selected, peer reviewed papers from the 2014 3rd International Conference on Mechanical Engineering and Materials (ICMEM 2014), November 5-6, 2014, Singapore. The 46 papers are grouped as follows: Chapter 1: Engineering Materials; Chapter 2: Technologies and Systems of Materials Processing;Chapter 3: Bui…
The reaction of NO with the hydroxylated rutile TiO 2 (110)-1 × 1 surface ( h -TiO 2 ) was investigated as a function of NO coverage using temperature-programmed desorption. Our results show that NO reaction with h -TiO 2 leads to formation of NH 3, which is observed to desorb at ∼400 K. Interestingly, the amount of N…
Abstract Besides the fundamental competition between the top-down and bottom-up approaches in nanotechnology, there are some basic aspects for organizing structures and functions at the molecular level. The recent challenges to the development of nanotechnology are marked by a group of general requirements: selection…
Since the surface-structure-related state dominates the photoluminescence (PL) emissions of cubic silicon carbide (3C-SiC) nanocrystals (NCs) with a diameter lower than 3.0 nm, the PL lines of 3C-SiC NCs in deionized water with different pH values, methanol, ethanol, chloroform, and toluene are characterized at the ex…
Among the different polymorphs of LaLuO3 the hexagonal one is the least explored. Therefore, in this work, hexagonal LaLuO3 is grown and investigated in more detail. Two different growth templates are presented, offering the possibility to stabilize this hexagonal phase: Y2O3 on Si (111) and GaN on Al2O3 (0001). The L…
In controlling induction heating systems, several measurement methods exist for controlled heating of metal billets into the semi-solid state for thixoforming. The most common approach is to measure the billet temperature, which suffers from various drawbacks leading to difficulties in process stability. The main disa…
ABSTRACT In this work, a two‐dimensional model of polymer wet spinning that couples simultaneous momentum and energy transport with ternary diffusion and phase separation processes is presented and its predictions for a model system are discussed. The uniqueness of the model lies in its two‐phase nature and ability to…
We report on improved device performances of solution-processed zinc tin oxide (ZTO) thin film transistors (TFTs) using a graphene interlayer between an Al electrode and ZTO. The ZTO TFTs with a high-temperature annealing process at 600 °C show improved output characteristics compared to ones with annealing at relativ…
Abstract This study was conducted to explain the tensile strength loss of wood due to the modification with 1,3-dimethylol-4,5-dihydroxyethyleneurea (DMDHEU) and glutaraldehyde (GA). Modified and control wood blocks were macerated to deliberate fibres, and handsheets were produced thereof. The nitrogen content of the…