High Resolution In-situ Study of Reactions in Graphene Liquid Cells
C Wang, Q Qiao, RF Klie, T Shokuhfar; High Resolution In-situ Study of Reactions in Graphene Liquid Cells, Microscopy and Microanalysis, Volume 20, Issue S
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Nanoscale Wear as a Stress-Assisted Chemical Reaction: An in-situ TEM Study
Robert W Carpick, Tevis DB Jacobs; Nanoscale Wear as a Stress-Assisted Chemical Reaction: An in-situ TEM Study, Microscopy and Microanalysis, Volume 20, Is
“Open-stub electromagnetic bandgap” structures loaded with capacitive transmission line segments for bandgap frequency control
An electromagnetic bandgap (EBG) structure is an effective tool to suppress power plane noise (PPN) in gigahertz region. Here we propose a concept and a new EBG structure enabling to control bandgaps for applications, including multiband wireless communication. The EBG strcture based on an open-end transmission line h…
Structure of an Al-Fe-Ni Decagonal Quasicrystal Studied by Cs-Corrected STEM
The structure of an AlFeNi decagonal quasicrystal with two quasiperiodic planes along the periodic axis in an Al72Ni24Fe4 alloy has been examined by spherical aberration (Cs)-corrected scanning transmission electron microscopy with high-angle annular dark-eld and annular bright-eld techniques. The transition-metal ato…
Nanostructure-Assisted Phonon Scattering in Lead-Free Thermoelectric Materials: A TEM Investigation of the SnTe System
Fengyuan Shi, Shih-Han Lo, Gangjian Tan, Li-Dong Zhao, Mercouri G Kanatzidis, Vinayak Dravid; Nanostructure-Assisted Phonon Scattering in Lead-Free Thermoe
STEM-EELS Studies of the Local Structure and Coordination of Al2O3/Si interfaces in Si Solar Cells
Wei Zhang, Kristopher O Davis, Winston V Schoenfeld, Pat Looney, Feng Wang; STEM-EELS Studies of the Local Structure and Coordination of Al2O3/Si interface
A simplified thermal circuit model of permanent magnet machine part I: Model and parameters
For evaluate the thermal behavior of a permanent magnet motor under different types of losses and various loss distributions, a simplified thermal circuit is proposed. This topic is split into two separated papers. The first paper focuses on the building of the model and to evaluate key parameters. The experiment to v…
Influence of oxygen content on the crystallinity of MgO layers in magnetic tunnel junctions
With RF sputtering process, Si/SiO2/Ta/Ru/Ta/CoFeB/MgO/CoFeB/Ta/Ru structure has been grown on Si (100) substrate. Attempting different targets and adjusting the oxygen dose, the crystallization quality of the MgO layer is studied. The X-ray diffraction measurements demonstrate that crystal structure and crystallizati…
The effects of non-uniform loss on time reversal mirrors
Time reversal mirrors work perfectly only for lossless wave propagation; dissipation destroys time-reversal invariance and limits the performance of time-reversal mirrors. Here, a new measure of time-reversal mirror performance is introduced and the adverse effect of dissipation on this performance measure is investig…
Transforming Growth Factor Beta (TGF-β): Natural Curing Agents for Repair
intracellular signalling pathway. This will activate or inhibit a gene causing either an up regulation or down regulation of a gene product, which then alters the cells behaviour.
A New EPMA Method For Fast Trace Element Analysis In Simple Matrices
John J Donovan, John T Armstrong; A New EPMA Method For Fast Trace Element Analysis In Simple Matrices, Microscopy and Microanalysis, Volume 20, Issue S3,
Anomaly of double-decker bis(phthalocyaninato)cerium(IV) in its electrochemical properties amongst rare-earth analogs
Redox properties of the title complex [ Ce ( pc )2] (where pc denotes phthalocyaninate dianion, C 32 H 16 N 82-) have been investigated in dichloromethane solutions by cyclic- and rotating-disk-electrode voltammetry. Unlike the other rare-earth(III) analogs that show one oxidation and one reduction waves in the potent…
Analysis of the Damage Causes of High Speed Bearing Failure
High speed bearings are specified with mechanical properties, technological parameters and defined microstructure too. When these qualities are not respected in the manufacture, arise significant damage and consequently their not running ability. Cause of damage can also be bad operating conditions during its operatio…
Effect of Yttrium (Y) and Zirconium (Zr) Doping on the Thermodynamical Stability of the Cubic Ba0.5Sr0.5Co0.8Fe0.2O3-δ Phase
M Meffert, P Müller, H Störmer, L-S Unger, C Niedrig, S F Wagner, S Saher, H Bouwmeester, E Ivers-Tiffée, D Gerthsen; Effect of Yttrium (Y) and Zirconium (
Atomistic simulation of stacking faults in cementite: Planes containing vector [010]
The method of molecular dynamics (MD) has been used to study γ surfaces in (103), (101), (102), (201), and (301) planes of cementite, which contain the Burgers vector [010] of the perfect dislocation. Displacement vectors that correspond to stable stacking faults (SFs) and the energies of these SFs have been determine…
FixingTIM: interactive exploration of sequence and structural data to identify functional mutations in protein families
BACKGROUND: Knowledge of the 3D structure and functionality of proteins can lead to insight into the associated cellular processes, speed up the creation of pharmaceutical products, and develop drugs that are more effective in combating disease. METHODS: We present the design and implementation of a visual mining and…
Wear Behaviour of Stellite 6 Coatings Produced on an Austenitic Stainless Steel Substrate by Laser Cladding Using Two Different Heat Inputs
Stellite 6 was deposited by laser cladding on an austenitic stainless steel substrate (ASS) with energy inputs of 1 kW (ASS 1) and 1.8 kW (ASS 1.8). The chemical compositions and microstructures of these coatings were characterized by atomic absorption spectroscopy, optical microscopy and scanning electron microscopy.…
Quadruple-decker phthalocyanines — one additional layer for a molecule, one giant leap for phthalocyanine chemistry
The synthesis, and spectroscopic and magnetic properties of quadruple-decker phthalocyanines (Pcs) have been reviewed. While the presence of stacked mercury Pc oligomers was proposed as early as 1992, the isolation of a quadruple-decker Pc was first achieved in 2010. Herein, we review how the synthetic strategy for qu…
Study of Residual Stresses in Bimetallic Work Rolls
An experimental campaign of compression tests, differential thermal analysis (DTA), differential scanning calorimetry (DSC), dilatometry and microstructure analysis has been performed, as well as the identification of the material data set for finite element (FE) analysis of bimetallic rolls. This article numerically…
Relação entre perfil de densidade e ligação interna de painéis OSB de Pinus spp
O presente trabalho teve por objetivos determinar a densidade aparente de painéis OSB de Pinus taeda e Pinus elliottii var. elliottii × Pinus caribaea var. hondurensis pelo método gravimétrico e pela densitometria de raios X, obter os perfis densitométricos e verificar sua correlação com a propriedade mecânica de liga…