Materials Literature
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The synthesis of stable Pt nanoparticles (Pt NPs) and their attachment to glassy carbon (GC) and gold electrodes have been investigated. Two strategies have been followed, by reaction with the thiol termination of a self-assembled monolayer of 1,4-benzenedimethanethiol (BDMT) on gold and by chemical bonding through an…
Heat capacities of triphenylantimony bis(1-adamantanecarboxylate) Ph 3 Sb[OC(O)C 10 H 15 ] 2 were measured with a precision adiabatic vacuum calorimeter over the temperature range from T = (6 to 353) K and with differential scanning calorimeter over the temperature range from T = (320 to 520) K. The thermal behavior o…
Extreme ultraviolet lithography (EUVL) at 13.5 nm is currently the most promising technology for advanced integrated circuit manufacturing nodes. Since the wavelength for EUVL is an order of magnitude smaller than current optical lithography systems (193 nm), aberration tolerances on lens manufacturing must be tighten…
Die chemische und elektrochemische Reduktion eines fünffach koordinierten High-Spin-Nichthäm-{FeNO}7-Komplexes (siehe Struktur: N blau, Fe orange, und O rot) führte zum ersten stabilen High-Spin(S=1)-Nichthäm-{FeNO}8-Modellkomplex. Der Befund, dass die Reduktion metallzentriert abläuft und eine Verringerung der Fe-NO-…
Abstract Plasma surface diffusion alloying method has been applied to prepare a tungsten diffusion modified layer on the surface of AISI 304 stainless steel (W‐304 SS). A series of material evaluation experiments were performed on the W‐304 SS specimens to determine whether it is suitable to be used as PEMFC bipolar p…
Abstract Quenching as a part of heat treatment is an important process in the manufacturing chain of metallic components. One of the most common processes is immersion quenching in vaporising liquids. Unfortunately, this process is affected by the Leidenfrost-phenomenon. This effect can generate inhomogeneous quenchin…
We propose a dual-layer transparent Indium Tin Oxide (ITO) top electrode scheme and demonstrate the enhancement of the optical output power of GaN-based light emitting diodes (LEDs). The proposed dual-layer structure is composed of a layer with randomly distributed sphere-like nano-patterns obtained solely by a maskle…
Zwei Rotormoleküle wurden synthetisiert (siehe Bild). Eine frequenz- und temperaturabhängige Studie der Rotordrehung basierend auf dem Imaginärteil der komplexen dielektrischen Konstante (ε′′) zeigt, dass die Drehung des molekularen Einkomponenten-Rotors durch Wasserstoffbrücken zwischen Rotor und Stator moduliert wer…
The ability to assess brain tumor perfusion and abnormalities in the vascular structure in vivo could provide significant benefits in terms of lesion diagnosis and assessment of treatment response. Arterial spin labeling (ASL) has emerged as an increasingly viable methodology for non-invasive assessment of perfusion.…
In this article, we report on a new one‐step synthetic route to obtain multi‐functional silica‐coated hematite particles using a water‐based surfactant‐free technology. The synthesis and properties of uniform silica‐coated hematite particles with adjustable size, morphology, and silica shell thickness are discussed in…
We demonstrate the concept of a merged nanoscale photonic crystal slot waveguide that acts as a bandpass filter in the near infrared region of the spectrum. The device is based on the integration of a photonic crystal cavity in a slot waveguide on a silicon on insulator substrate. The device is further embedded in amo…
Compared to grinding which has low efficiency, serious pollution, and hard turning together with serious tool wear, whirlwind milling (WM) is a more competitive machining process in manufacturing. However, as a technology under development, the complicated mechanism in WM processes has not yet been fully understood. I…
We have studied the self-assembly of a series of multicomponent cyclic supramolecular polygons on a Au(111) surface using scanning tunneling microscopy and kinetic Monte Carlo simulations. Our results indicate that while closed polygons or cages efficiently self-assemble in three dimensions at appropriate temperatures…
Abstract Quaternary kesterite‐type Cu2ZnSnS4 (CZTS) nanoparticles (NPs) were successfully synthesized by a single‐step solvothermal process. Semiconductor CZTS nanoparticles were obtained from ethylene glycol (EG) and CZTS precursor after solvothermal process at 180 °C for 30 h in polyvinylpyrrolidone (PVP) medium. Th…
Spin and charge transport: The electronic and structural properties obtained from KC60(THF)5⋅2 THF single crystals are reported (see picture). An important finding is the presence of one-dimensional electric conductivity and the observation of counterintuitive anisotropy for electron transport.
We develop a general method for calculating conduction-diffusion transport properties of strong electrolyte mixtures, including specific conductivities, steady-state electrophoretic mobilities, and self-diffusion coefficients. The ions are described as charged Brownian spheres, and the solvent-mediated hydrodynamic in…
The microstructure of rolling element bearings can experience significant transformation when subjected to repetitive contact cycling. In Part 1 of this article, a detailed overview of the known microstructure alteration phenomena was presented and the different mechanisms for describing them proposed by various inves…
Solvent crystallization is the main method used for preparing anthracene and carbazole from the crude anthracene. The key to the optimization of this method is improving the solubility selectivity of the solvent by means of solvent modulating and process optimization. In this study, the solubility of anthracene, phena…
In this paper, a procedure for fabricating and testing a seamless spherical dielectric elastomer actuator (DEA) is presented. In previously developed spherical prototypes, the DEA material is pre-strained by a rigid frame to improve the actuator's output force; however, it is possible to pre-strain a spherical DEA by…
Riboswitches are RNA elements that allosterically regulate gene expression by binding cellular metabolites. The SAM-III riboswitch, one of several classes that binds S-adenosylmethionine (SAM), represses translation upon binding SAM (OFF state) by encrypting the ribosome binding sequence. We have carried out simulatio…