Design for decreasing running resistance of crawler tracking of mining equipment underground;

Analysis and calculation of running resistance of long distance belt conveyor;

A new calculating method of the scraper conveyor running resistance;

Utilizing the electristic-bag preciptater simulation experimental system,under many experimental conditions(the density of dust,the thickness of dust on bag surface,the blowing pressure of bag house preciptater and blown time) the experimental study on the operation resistance of electristic-bag precipitater was carried out.

On the basis of the research method with combination of two calculation modes of the automobile running resistance and train operation resistance,the theoretical formula of curve additional resistance is derived for the straddle type monorail vehicles.

To verify the feasibility of this kind of Pigs,the operation resistance of the Pig was measured and compared with that of traditional Pigs.

Effects of isotonic and resistance exercises on the natriuretic peptide in plasma;

Responses of cardiovascular and hormonal to isotonic exercise and resistance exercise;

Objective To investigate a difference of spinal reflex and muscular motor block during low epidural analgesia.

【Objective】 To determine the motor block minimum local analgesic concentrations(EC50) of levobupivacaine and ropivacaine,and compare the relative potency of these drugs used in epidural space.

The influence of the resistance force on the boiler system operation is discussed,and measures to reduce the operational resistance force for the bag dust collector were put forward.

Under 400mg/L TDS of influent water and 33m/h flow velocity,the operation results showed that the HDCBs had low operational resistance,good effluent water quality,and its cycle durations could reach 24h,average working exchange capacity of cation was 1884mol/m~3 and 500mol/m~3 to anion,acid consumption and alkali consumption was 45g/mol and 54g/mol respectively,water self-consumption was 2-4%.