Methods for Realizing Long-term and Effective Operation of FCCU;

The measures for long-term operation of the revamped crude distillation unit in processing high-acidity crude oil in Liaohe Petrochemical Company of PetroChina Co.

It analyzes key factors that affect long-term running of acrylonitrile production unit and sets forth the rele vant countermea-sure that achieved remarkable result after application in practical production and devoted positive popularization as well as applica-tion value for supervising long-term running of same type of production unit.

Changes of hair papilla and its role in the growth cycle of the hair follicles;

The changes in the content of both substrate-glucose and ammonium sulfate,pH and flocculation activity and output of compound microbial flocculant in different periods of growth cycle compound bioflocculant producingbacterium were studied.

Plant cell divides only when inoculated mass is higher than a critical density,and the latter is directly related to cell growth cycle and cell multiplication times.

The long period commercial application of pre - hydrogenation catalyst DZ-1A for reforming feedstocks;

Reseason for affacting the long period running of gas distributary device and it′s resolvent;

Study on the provisions for the values of design response spectra in long period section;

Since the long term temperature records are not available in China,there is a lack of BIN weather data for study and application.

The visible light absorption spectrum and biochemical compositiion of Porphyridium cr2酰澹睿簦酰? in the growth circle were investigated.