Modeling and Parameter Sensitivity Improvement in ΔE-Effect Magnetic Sensor Based on Mode Localization Effect.

A mode-localized ΔE-effect magnetic sensor model is established theoretically and numerically. Based on the designed weakly coupled resonators with multi-layer film structure, it is investigated how the ΔE-effect of the magnetostrictive film under the external magnetic field causes the stiffness perturbation of the coupled resonators to induce the mode localization effect. Using the amplitude ratio (AR) as the output in the mode-localized ΔE-effect magnetic sensor can improve the relative sensitivity by three orders of magnitude compared with the traditional frequency output, which has been verified by simulations based on the finite element method (FEM).

Modeling the Piezoelectric Cantilever Resonator with Different Width Layers.

The piezoelectric cantilever resonator is used widely in many fields because of its perfect design, easy-to-control process, easy integration with the integrated circuit. The tip displacement and resonance frequency are two important characters of the piezoelectric cantilever resonator and many models are used to characterize them. However, these models are only suitable for the piezoelectric cantilever with the same width layers.

Efficacy and Safety of Renal Sympathetic Denervation on Dogs with Pressure Overload-Induced Heart Failure.

Background: In dogs with heart failure (HF) induced by overload pressure, the role of renal sympathetic denervation (RSD) on heart failure and in the renal artery is unclear. Therefore, we investigated the efficacy and safety of RSD in dogs with pressure overload-induced heart failure.

Methods: Twenty mongrel dogs were divided into a sham-operated group, an HF group and an HF + RSD group.

Stress-induced interaction between p38 MAPK and HSP70.

p38 MAPK, one of the four MAPK subfamilies in mammalian cells, is activated by environmental stresses and pro-inflammatory cytokines, playing fundamental roles in many biological processes. Despite all that is known on the structure and functions of p38, many questions still exist. The coupling of activation and nuclear translocation represents an important aspect of p38 signaling.

Expression of cyclin D1 in small cell lymphoma and its clinical implications.

OBJECTIVE: To observe the expression of cyclin D1 and explore its clinical significance in small cell lymphoma. METHODS: Immunohistochemical method was used to detect the expression of CD20, CD45RO and cyclin D1 in 31 formalin- fixed and paraffin-embedded tissue samples of human small cell lymphomas. RESULTS: Twenty-eight cases were categorized into B cell lymphoma and 3 into T cell lymphoma.