Output speed control for hydro-mechanical continuously variable transmission of tractor.

In order to improve the speed stability of tractors equipped with hydro-mechanical continuously variable transmission (HMCVT) during field operations, the speed regulation characteristics, torque characteristics, and power diversion characteristics of HMCVT are analyzed. And a comprehensive control strategy for HMCVT output speed is proposed by analyzing the factors affecting the fluctuation of output speed, which combines engine speed control and displacement ratio control of hydraulic speed control system. This strategy adopts fuzzy control to regulate the engine speed to maintain the stability of engine operation.

Additive anticancer effects of chrysin and low dose cisplatin in human malignant glioma cell (U87) proliferation and evaluation of the mechanistic pathway.

Purpose: To evaluate the anticancer effect of chrysin and its additive combination with low-dose cisplatin in human glioma (U87) cancer cells and to study its underlying mechanism.

Methods: Inverted phase and fluorescence microscopic studies were done to demonstrate the effect of chrysin and its combination with cisplatin on cellular morphology and apoptosis. Annexin V-FITC assay was used to quantify the extent of apoptosis in chrysin and chrysin+cisplatin treated cells.

Neural stem cells transplantation alleviate the hyperalgesia of spinal cord injured (SCI) associated with down-regulation of BDNF.

Transplantation of neural stem cells (NSCs) in the injured spinal cord has been shown to improve functional outcome. However, the influence of NSCs transplantation on the sensory function and analgesic behaviors has not been elucidated yet. Here, we investigated whether transplanted NSCs would improve sensory function in rats subjected to complete cord transection (T10) and explore the underlying mechanism.