Other

Shenyang Pharmaceutical University

Zhang, Yimin

Zhou Yang

Yanfeng Liu

Yimin Zhang

Chunfu Wu

Guo Yao

Xuefei Tan

Yanhui Zhao

Jinrui Zhang

Jianhai Zhang

Lisha Zhu

Wenjia Lu

Hangyuan Lv

A vertical lifting type drum coal-mining machine without a rocker arm includes a central control box, left and right cutting and lifting reduction gear boxes, left and right guide rail fixing box bodies, left and right traction reduction gear boxes, and left and right traveling gear boxes. The left and right cutting and lifting reduction gear boxes are provided with slideways in fit with lifting guide rails of the left and right guide rail fixing box bodies. Lifting cylinders drive the left and right cutting and lifting reduction gear boxes to make lifting motion. A cutting gear reduction mechanism adopts two-stage fixed-axle gear transmission and two-stage planetary gear transmission, is free from multiple idler pulley groups and has simple transmission chain. The fit between the lifting guide rails and the slideways enables the entire machine to be compact in structure, and the reliability and stability of operation are improved.

Vertical lifting type drum coal-mining machine without rocker arm

The present invention provides an active peptide purified from scorpions, and derivatives, analogs and active fragment which are produced by using genetic engineering technology. The analgesic active peptide VGG is extracted, separated and purified from scorpion, and its amino acid sequence is shown as below: The present invention further provides a use of the peptides in preparation of an analgesic drug, where the peptide is mixed with a pharmaceutically acceptable carrier to prepare into forms for injection, oral administration, transdermal absorption, and transmucosal absorption.

Analgesic active peptide VGG, preparation and use thereof

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Shenyang, China

Zhou Yang