Transparent conductive films based on quantum tunneling.

We theoretically propose an approach for designing transparent conductive films based on quantum tunneling effects. These films are constructed from insulator and metallic materials overlapped with one another. To approach the quantum tunneling regime and improve the conductivity, the thicknesses of the insulator layers should be 1 nanometer or less.

Synchronous gating in dilation x-ray detector without 1:1 image ratio.

An x-ray detector using a pulse-dilation technology to achieve high temporal resolution is reported. The electron pulse generated from the photo-cathode (PC) is first dilated by a pulse-dilation device and then imaged onto the microchannel plate (MCP) by a magnetic lens imaging system. Finally, the dilated electron pulse is detected by a gated MCP.

A theoretical study of diffraction limit breaking via coherent control of the relative phase in coherent anti-Stokes Raman scattering microscopy.

We present a theoretical investigation of how coherent control of the relative phase in coherent anti-Stokes Raman scattering (CARS) microscopy can break the diffraction limit. In quantum theory, it is found that the relative phase of the pump and Stokes pulses can be used to periodically tune the intensity of the anti-Stokes signal. Thus, by controlling the relative phase around the center of the pump and Stokes pulses, the anti-Stokes signal can be tuned to zero in this region.

Dilation x-ray framing camera and its temporal resolution uniformity.

An x-ray framing camera based on pulse-dilation technology is reported. This camera first dilates the electron signal generated from a pulsed photo-cathode (PC), and then detects the dilated electron pulse by using a gated microchannel plate (MCP). While the PC is only applied with a direct current (DC) voltage, the camera's temporal resolution without pulse-dilation is about 81 ps.

[Regulatory effects of inhaled steroids on expression of matrix metalloproteinase-9 and its inhibitor in asthmatic rats].

Objective: To investigate the role of matrix metalloproteinase-9 (MMP-9) and its tissue inhibitor (TIMP-1) in the pathogenesis of bronchial asthma and assess the effect of steroid treatment on MMP-9 and TIMP-1 levels. Matrix metalloproteinases are a family of zinc and calcium-dependent endopeptidases. Many MMPs such as MMP-1, MMP-2, MMP-3 are associated with asthma, in which MMP-9 is the key factor in asthma.