The seasonal coefficient of grounding resistance possibly reaches 3.0 in freezing region of North China, and those of touch voltage and step voltage 10 and 5.4, respectively.

There were significant positive corelations between a, b, c and the seasonal cofficient v, which might mean that milk secretion of FYF_1 was influcaced by seasons.

There was a 70-80% coincidence of the variants in both groups (the regions of statistical transgressions); seasonal factors were responsible for 20-30% of the differences.

The effect of microorganisms and seasonal factors on the isotopic composition of particulate organic carbon from the black sea

Role of seasonal factors in pre-and postnatal ontogenesis in etiology of type 1 diabetes mellitus

We propose that seasonality of birth of patients with type 1 diabetes in the two above populations could be due to long-term programming of glucose-insulin metabolism caused by the effect of certain seasonal factors during early ontogenesis.

The scavenging behavior of the fauna varied with seasonal factors, including temperature and rainfall.

Total daily milk yields of Simmental×Yellow cattle F_1 and Friesianxyellow cattle F_1 which were corrected with least squre method provided a means of studying freshening season effects on coefficients of the lactation curves y=e~(o-cx)x~b and y=e~(o-cx)x~b(1+Usint+Vcost) , where a, b, c, u and v are coefficients to be estimated; x is the week of lactation; and t is the day of year. It was found that the two models were fit better, especially the season effects modified gamma type model. The values of a, b,...

Total daily milk yields of Simmental×Yellow cattle F_1 and Friesianxyellow cattle F_1 which were corrected with least squre method provided a means of studying freshening season effects on coefficients of the lactation curves y=e~(o-cx)x~b and y=e~(o-cx)x~b(1+Usint+Vcost) , where a, b, c, u and v are coefficients to be estimated; x is the week of lactation; and t is the day of year. It was found that the two models were fit better, especially the season effects modified gamma type model. The values of a, b, c showed freshening seasons influence the initial production, increasing rate and persistency of lactalion. The coefficient b in FYF_1 was significant for seasons of freshening, the least of which was the value of summer—autumn freshening season. There were significant positive corelations between a, b, c and the seasonal cofficient v, which might mean that milk secretion of FYF_1 was influcaced by seasons.

Seasonal coefficients affect the safety of grounding systems and increase with the thickness and resistivity of the soil layer. The seasonal coefficient of grounding resistance possibly reaches 3.0 in freezing region of North China, and those of touch voltage and step voltage 10 and 5.4, respectively. The raining season will lead to the touch voltage increasing, hence the influence of raining on the safety of grounding system should be considered. Adding vertical rods to grounding system will decrease the seasonal...

Seasonal coefficients affect the safety of grounding systems and increase with the thickness and resistivity of the soil layer. The seasonal coefficient of grounding resistance possibly reaches 3.0 in freezing region of North China, and those of touch voltage and step voltage 10 and 5.4, respectively. The raining season will lead to the touch voltage increasing, hence the influence of raining on the safety of grounding system should be considered. Adding vertical rods to grounding system will decrease the seasonal coefficient and stabilize the safety of grounding system.

The design of conductive earth in substation is related to the safe operation of power network..This article analyzes such parameters as earth resistance, earth electric current, soil resistivity and season factor,then lists some common measure to reduce resistance. It also analyses corrosion problem of earthing material and put forward its measures.