Materials Literature
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Wet, wet, wet: A responsive surface is presented that can switch between stable superhydrophilic, metastable superhydrophobic, and stable superhydrophobic states by an enthalpy-driven process (see picture). This macroscopic phenomenon of surface wettability originates from the coordinative effect of the collective nan…
We report on a detailed analysis of the transport properties and superconducting critical temperatures of boron-doped diamond films grown along the {100} direction. The system presents a metal-insulator transition (MIT) for a boron concentration $({n}_{B})$ on the order of ${n}_{c}\ensuremath{\sim}4.5\ifmmode\times\el…
We discuss the relationship between modern time-dependent density functional theory and earlier time-periodic versions, and why the criticisms in a recent paper (Chem. Phys. Lett. {\bf 433} (2006) 204) of our earlier analysis (Chem. Phys. Lett. {\bf 359} (2002) 237) are incorrect.
Coarsening kinetics is usually described using a linear gradient approximation for the underlying interface migration (IM) rates, wherein the migration fluxes at the interfaces vary linearly with the driving force. Recent experimental studies have shown that coarsening of nanocrystalline interface microstructures is u…
To synthesize a new superconductor which has a critical temperature, Tc, exceeding the room temperature, one needs to know what chemical components to start with. This chapter presents analysis of experimental data which allow one to draw a conclusion about components and the structure of a potential room-temperature…
SEMICONDUCTOR NANOCRYSTALS (NANOCRYSTAL QUANTUM DOTS) Soft Chemical Synthesis and Manipulation of Semiconductor Nanocrystals, J.A. Hollingsworth and V.I. Klimov Electronic Structure in Semiconductor Nanocrystals, D.J. Norris Fine Structure and Polarization Properties of Band-Edge Excitons in Semiconductor Nanocrystals…
The adsorption of simple benzene derivatives composed of a benzene ring with $\mathrm{N}{\mathrm{O}}_{2}$, $\mathrm{C}{\mathrm{H}}_{3}$, or $\mathrm{N}{\mathrm{H}}_{2}$ functional groups on a semiconducting single-wall carbon nanotube is studied using the density-functional theory within the local-density approximatio…
Gelatine - An Element of Our Life. 1 Introduction. 1.1 Gelatine - Yesterday, Today, and Tomorrow. 1.1.1 The Future of Gelatine Has Just Begun - Its Multi-faceted History Is Proof. 1.1.2 It All Began with Glue. 1.1.3 Pure Luxury for Kings and Aristocrats. 1.1.4 During the Napoleonic Wars, Gelatine Was Systematically Re…
<div class="htmlview paragraph">An electrochemical testing protocol for assessing the intrinsic corrosion-resistance of creep-resistant magnesium alloys in aqueous environments, and effects of passivating surface films anticipated to develop in the presence of engine coolants is under development. This work repo…
<div class="htmlview paragraph">Hot-formed steels (here called “Boron steels”) offer a great weight saving potential versus conventional cold-formed steels used for crash relevant structural parts.</div> <div class="htmlview paragraph">Boron steels allow complex shaped parts due to the hot-forming pr…
<div class="htmlview paragraph">In order to enhance the catalytic performance of the NOx Storage-Reduction Catalyst (NSR Catalyst), the sulfur tolerance of the NSR catalyst was improved by developing new support and NOx storage materials. The support material was developed by nano-particle mixing of ZrO<sub&g…
<div class="section abstract"><div class="htmlview paragraph">Modern diesel aftertreatment systems may produce ammonia (NH<sub>3</sub>), especially in gas samples from midbed locations. NH<sub>3</sub> causes significant measurement errors in NO, NO<sub>2</sub>, and NOx m…
<div class="htmlview paragraph">More than twenty years have passed since we invented polymer-clay nanocomposites (PCN), in which only a few wt.-% of silicate is randomly and homogeneously dispersed in the polymer matrix. When molded, these nanocomposites show superior properties compared to pristine polymers suc…
<div class="htmlview paragraph">In this paper we present a comparison of two different approaches to model three-way catalyst. First, a numerical sample case simulating light-off is used to compare the 1D and the 2D models. The advantages of each code are discussed with respect to required input data, detail lev…
<div class="htmlview paragraph">Catalyst poisoning from engine oil additives is a complicated process that depends in part on the pathway by which the oil is consumed in the engine. Engine studies were conducted to assess the relative impact of three major modes of oil consumption - through the PCV system, past…
<div class="htmlview paragraph">Heating and cooling automotive seats are a relatively new technology that delivers conditioned air to the occupant's seat providing an overall improvement in occupant comfort. This paper combines experimental and computational data to describe the effect of seat cooling on occupan…
<div class="htmlview paragraph">This paper investigates the effect of specimen geometry and test boundary conditions on the measured dynamic mechanical properties of high strength sheet steel derived from high speed tensile testing at 15m/s, using a servo-hydraulic test machine. In this study, stochastic modelli…
Abstract It is a well-accepted practice to add production chemicals to a formation through a squeeze process. These are designed to place chemical in the near well area and treat the fluid for scale, paraffin, salt, etc. Now, frac-fluid approved chemicals are added to the fracture in order to place products deeper in…
<div class="htmlview paragraph">Diesel engine emissions regulations throughout the world have changed dramatically over the last 20 years, with the most stringent phase for medium/heavy duty being implemented starting 2007 - 2010. The general perception is, that combination systems including PM reduction devices…
<div class="htmlview paragraph">The removal of nitrogen oxides emitted by diesel and lean burn engines is one of the most important targets in catalytic exhaust aftertreatment research. Besides the selective catalytic reduction (SCR) reaction with ammonia the most promising approach is the NO<sub>x</sub…