Flow channel in bipolar plate for PEMFC has the founction of transporting the fuel and oxygen and *** process for flow channel on metallic bipolar plates is an economic and convenient method for mass *** is extremely ...
Flow channel in bipolar plate for PEMFC has the founction of transporting the fuel and oxygen and *** process for flow channel on metallic bipolar plates is an economic and convenient method for mass *** is extremely important to predict and prevent the tearing,wrinkling,thinning,skid mark and spring back in stamping *** this study,finite element method is used to predict the imperfection and analyze the strain and thickness variation during the stamping process.
The electromagnetic parameters were measured for the mixtures of mechanical milled carbonyl iron powders （CIPs） with different mass ratios of spheroid-like particles to flake-shape particles. The results indicate th...
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The electromagnetic parameters were measured for the mixtures of mechanical milled carbonyl iron powders （CIPs） with different mass ratios of spheroid-like particles to flake-shape particles. The results indicate that mixing the sphere-like CIP particles with flake-shaped CIPs can be used to adjust effectively the electromagnetic parame- ters and enhance the absorption property in high frequency. In addition, a theoretic simulation based on the principle of superposition was carried out and compared with the microwave measurement results, indicating that the simple principle of superpo- sition can not reflect truly the internal interaction mechanism in the composites with different particle shapes.
In recent years, self-assembly nanoparticles into well-ordered structures possess quite important position in spectroscopy, magnetism, catalysis and *** all of the nanoparticles, magnetic nanoparticles promises an unp...
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In recent years, self-assembly nanoparticles into well-ordered structures possess quite important position in spectroscopy, magnetism, catalysis and *** all of the nanoparticles, magnetic nanoparticles promises an unparalleled opportunity for self-assembly as they can be controlled to form directional arrangements according to the external magnetic fields.
The preparation and stabilization of metallic nanoparticles are of great importance in the field of *** developments in supermolecular self-assembled porous materials enabled catalytic metal nanoparticlcs to be hosted...
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The preparation and stabilization of metallic nanoparticles are of great importance in the field of *** developments in supermolecular self-assembled porous materials enabled catalytic metal nanoparticlcs to be hosted inside the pores of such porous materials for enhancing the stability of these metallic nanoparticles, which is the drawback for bare metallic nanoparticles because of their deformation or aggregation.
Encapsulation of whole microbial cells in nanofibers for use in microbial fuel cells was the main focus of this *** using an electrostatic spinning device with two coaxial capillaries, the continuous nanofibers of a c...
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Encapsulation of whole microbial cells in nanofibers for use in microbial fuel cells was the main focus of this *** using an electrostatic spinning device with two coaxial capillaries, the continuous nanofibers of a core hydrogel encapsulating bacterial cells and a shell polymer can be fabricated.
Molecular chirality is introduced at liquid–solid interfaces. A ring‐like aggregation of amyloid Aβ(1–40) on N ‐isobutyryl‐ L ‐cysteine ( L ‐NIBC)‐modified gold substrate occurs at low Aβ(1–40) concentratio...
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Molecular chirality is introduced at liquid–solid interfaces. A ring‐like aggregation of amyloid Aβ(1–40) on N ‐isobutyryl‐ L ‐cysteine ( L ‐NIBC)‐modified gold substrate occurs at low Aβ(1–40) concentration, while D ‐NIBC modification only results in rod‐like aggregation. Utilizing atomic force microscope controlled tip‐enhanced Raman scattering, we directly observe the secondary structure information for Aβ(1–40) assembly in situ at the nanoscale. D ‐ or L ‐NIBC on the surface can guide parallel or nonparallel alignment of β‐hairpins through a two‐step process based on electrostatic‐interaction‐enhanced adsorption and subsequent stereoselective recognition. Possible electrostatic interaction sites (R5 and K16) and a chiral recognition site (H14) of Aβ(1–40) are proposed, which may provide insight into the understanding of this effect.
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