The relative scanning value of all dot blots in the experimental groups (treated with 8 Br cAMP) was lower than that in respective control groups(treated with no 8 Br cAMP)( P <0.05~0.01).
3. Under various groundwater levels, root length, root dry weight, and the distribution of every soil layer were the treatment A(6 cm water layer) > B(4 cm water layer) > C(2 cm water layer) , root volume and root density decreased gradually with root system vertical distribution depth, but the treatment of A increased strongly between 0.30 m and 0.50 m.
On Oct.1996,a 300MW generator was severely burnt in the thermal power plant S.Meanwhile the static contact of phase A bus earth switch in TV cabinet of 20kV bus at the generator outlet was burnt into a ball.
A Delftia tsuruhatensis strain capable of consuming aniline as the sole source of carbon, nitrogen, and energy at concentrations of up to 3200 mg/l was isolated from activated sludge of the sewage disposal plants of OAO Volzhskii Orgsintez.
Part of the review is devoted to analyzing methods used for studying the population dynamics of bacterial communities involved in xenobiotic degradation in natural biotopes or industrial waste disposal plants.
Enrichment cultures of microorganisms producing gases (hydrogen, methane, carbon dioxide, and hydrogen sulfide) and capable of participation in the precipitation of metal sulfides were obtained from the waters of the disposal site.
Analysis of the low frequency response of automatic balancing D-C amplifier with mechanical chopper is illustrated by a typical circuit in this paper. The analysis of dynamic response of the modulation and the demodulation circuits and the auxiliary carrier wave amplifier have been considered more in details. The analysis is based on solving difference equations since the intrinsic working process behaved by the M-D M circuits using mechanical chopper is more accurately described by difference equation othe...
1.Homo-ionic colloidal clays (Mg-clay>H-clay>Be-clay>NH4-clay>K-clay>Na-clay. 3.The collcidal clays from yellow earth having lower SiO_2/R_2O_3 ratios fix more phosphate than that from purple b...
The rice stem borer, Chilo simplex Bulter, is one of the important rice pestsin Kiangsi. The relative proportion of this borer to Schoenobius incertellus Wk. isgradually increased especially after developing the movement of "Control the RiceBorer by Plowing in Autumn, Winter and Early Spring." This situation induced usto take up this problem. This paper deals with the distribution of the borer Chilo simplex with a dis-cussion of the factors influencing its distributional population. in Kiangsi. The lifehist...