Postinhibitory rebound delay and weak synchronization in Hodgkin-Huxley neuronal networks

The postinhibitory rebound delay and weak synchronization in neuronal networks were discussed. A kind of intrinsic delay induced by the rebound was observed and was found to be important in determining the overall frequency of the network. The comparisons with the results for the excitatory coupling were also addressed.published_or_final_versio

Stochastic resonance in a Hodgkin-Huxley neuron in the absence of external noise

A numerical study of nonlinear responses of a periodically forced Hodgkin-Huxley neuron in the absence of external noise was presented. The multimodal aperiodic firing pattern, a bell shaped curve in the signal to noise ratio and the statistical features predicted the intrinsic stochastic resonance. The signal transduction was improved by the intrinsic oscillations.published_or_final_versio

A sensor-based robotic line scan system with adaptive ROI for inspection of defects over convex free-form specular surfaces

202209 bcfcAccepted ManuscriptRGCOthersKey-Area Research and Development Program of Guangdong Province; ASTRI; Jiangsu Industrial Technology Research Institute Collaborative Research Program SchemePublishe

Synthesis and photophysical studies of chiral helical macrocyclic scaffolds via coordination-driven self-assembly of 1,8,9,16-tetraethynyltetraphenylene. Formation of monometallic platinum(II) and dimetallic platinum(II)-ruthenium(II) complexes

This paper is concerned with the synthesis and reactions of enantiopure 1,8,9,16-tetraethynyltetraphenylene (3). We obtained 3 in 34% yield through four steps starting from 1,8,9,16-tetrahydroxytetraphenylene (2a) via a functional group interconversion strategy. On the basis of this chiral "helical" building block, three rigid helical macrocycles 14, 15, and 22 were designed. Complexes 14 and 15 were constructed via coordination-driven self-assembly with platinum(II) complexes 8 and 9b, while 22 cannot be obtained successfully. Then macrocycle 28 was designed on the structural basis of 22 to which octyl chains were introduced, in the hope of improving the solubility of the complex. Macrocycle 28 was finally formed and was characterized by NMR spectroscopy, elemental analysis, and electrospray mass spectrometry. For the enantiopure 15 and 28, circular dichroism (CD) spectra also exhibited chiral properties. Complexes 27 and 28 both exhibited an intense emission band at 621 nm in acetonitrile at 298 K upon excitation at λ > 420 nm. © 2010 American Chemical Society.link_to_subscribed_fulltex