Materials Literature
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Polymer‐derived ceramic (PDC) processing represents a versatile complement for the preparation of ceramic coatings. Filler‐loaded preceramic polymer layers can be deposited by methods such as dip coating even on substrates with a complex geometry, and subsequent thermal processing results in the formation of ceramic c…
In this paper, a nonlinear model predictive controller (NMPC) with a multiagent heuristic optimizer, which is called dynamic particle swarm optimization (DPSO), is proposed to reduce the cold-start hydrocarbon (HC) emission of an automotive spark-ignited engine. In general, the cold-start HC emission reduction has bee…
Abstract Polymer electrolyte membrane fuel cells are energy conversion devices that offer high power densities and high efficiencies for mobile and other applications. Successful introduction into the marketplace requires addressing cost barriers such as production volumes and platinum loading. For cost reduction, it…
In this paper, a new 12/7-pole flux-switching permanent magnet (FSPM) motor is proposed. Similar to the conventional FSPM motor, both the armature windings and permanent magnets of the proposed 12/7-pole FSPM motor are housed on the stator, whereas the rotor is composed of a simple iron core with salient teeth. Accord…
The assignment of secondary structure elements in proteins is a key step in the analysis of their structures and functions. We have developed an algorithm, SACF (secondary structure assignment based on Cα fragments), for secondary structure element (SSE) assignment based on the alignment of Cα backbone fragments with…
This paper proposes an axial-field flux-modulated magnetic gear (AF-FMMG), in which the rotations with different speeds of the inner rotor and the outer rotor can be achieved based on the modulation function of two stationary modulation rings. Due to the axial-flux configuration, the proposed AF-FMMG offers the advant…
Abstract A simple electrochemical methodology was described to elaborate a sensor based on poly(1,5‐diaminonaphthalene)/reduced graphene oxide film onto platinum‐patterned electrodes. The composite electrodes were investigated for Pb2+ determination using square wave anodic stripping voltammetry. Pb2+ was first reduce…
Recent research has shown that fully developed organs can be decellularized, resulting in a complex scaffold and extracellular matrix (ECM) network capable of being populated with other cells. This work has resulted in a growing field in bioengineering focused on the isolation, characterization, and modification of or…
Some previously reported surface acoustic wave (SAW) devices using bulk piezoelectric substrates showed higher acoustic power radiated in either forward or backward wave propagation direction depending on their crystal orientations and are called natural single-phase unidirectional transducers (NSPUDT). While these re…
Fluorescence anisotropy decay measurements and all atom molecular dynamics simulations are used to characterize the orientational motion and preferential interaction of a peptide, N-acetyl-tryptophan-amide (NATA) containing two peptide bonds, in aqueous, urea, guanidinium chloride (GdmCl), and proline solution. Anisot…
We investigate tensile deformation of metallic glass/crystalline interpenetrating phase nanocomposites as regards the effects of specific area of amorphous/crystalline phase interfaces, and grain boundaries. As an illustrative case, large-scale molecular dynamics simulations are performed on Cu64Zr36 metallic glass/Cu…
Impact of aging on nanoparticle toxicity in real matrices is scarcely investigated due to a lack of suitable methodologies. Herein, the toxicity of pristine and aged silver nanoparticles (Ag NPs) to a bioluminescent Pseudomonas putida bioreporter was measured in spiked crude and final wastewater samples (CWs and FWs,…
The Pearl River estuary, southern China, suffers from multiple sources of metal contamination as a result of the rapid industrial development in the region; but the biological impacts of contamination remain unknown. In the present study, a euryhaline oyster, Crassostrea hongkongensis, was collected from different sit…
A low-temperature topochemical reduction strategy is used herein to prepare unconventional phosphors with luminescence covering the biological and/or telecommunications optical windows. This approach is demonstrated by using Bi(III)-doped Y2O3 (Y(2-x)Bi(x)O3) as a model system. Experimental results suggest that topoch…
Abstract Nitrogen‐doped hollow carbon nanospheres (N‐HCSs) were prepared by a facile template method with dopamine as the precursor and subsequently used as the anode material for sodium‐ion batteries. The N‐HCSs demonstrated high reversible capacities with a retained capacity of 162.2 mA h g–1 over 100 cycles at 0.1…
Implantable devices have a large potential to improve human health, but they are often made of biofouling materials that necessitate special coatings, rely on electrical connections for external communication, and require a continuous power source. This paper demonstrates an alternative platform, which we call iTAG (i…
Progressive collapse resistance of RC buildings can be analyzed by considering column loss scenarios. Using finite element analysis and a static test, the progressive collapse process of a RC frame under monotonic vertical displacement of a side column was investigated, simulating a column removal scenario. A single-s…
The response of topological insulators (TIs) to an external weakly classical field can be expressed in terms of Kubo formula, which predicts quantized Hall conductivity of the quantum Hall family. The response of TIs to a single-mode quantized field, however, remains unexplored. In this work, we take the quantum natur…
Abstract The formation energies of neutral Cu, Sn, and S vacancies in monoclinic Cu2SnS3 were calculated by first-principles pseudopotential calculations using plane-wave basis functions in typical points in a schematic ternary phase diagram of a Cu–Sn–S system. The formation energy of a Cu atom vacancy in Cu2SnS3 und…
Silver nanowires (AgNWs) were prepared on a 5 g scale using either the well-known batch synthesis following the polyol method or a new flow synthesis method. The AgNWs were employed as semitransparent electrode materials in organic photovoltaics and compared to traditional printed silver electrodes based on micron siz…