Damage of cadmium and lead to DNA chain and the effects on cocoon quality were studied in silkworm under exposure of different cadmium and lead concentrations.

uantitative analyses are made on such factors as reelable cocoon ratio, cocoon quality,cocoon cooking/silk reeling technology and management that affect silk yielding of fresh cocoons,with corresponding measures presented to improve reelable cocoon ratio,cocoon quality and cocoon cooking/silk reeling levels.

The results showed that the numbers of enzyme bands and the enzyme activity swelled in region A,hatching rate declined with increase of the dose of N +,newly hatched silkworm setae dispersion rate enhanced a little and difference of development in individual swell but cocoon quality retain.

Prediction of water quality index in Qiantang River based on BP neural network model;

Principal component analysis of water quality indexes of Taihu Lake;

Depression and affect of red tide on main water quality index by Gracilaria tenuistipitata;

The paper mainly investigated parts of quality change of broccoli during the process of blanching and drying.

The thesis mainly investigated parts of quality change of Patrinia Villosa(PV) during the process of blanching and drying.

This paper introduced processing technology and quality indicator of the soft-packing Sichuan- flavored red-roast beef in detail.

Major quality indicators of LPG and key projects with easy deviation tendency in the process of LPG detection are discussed and some improvement suggestions are proposed.

Europe quality indicators of lifelong learning includes four areas and fifteen items.