[Results]The intracranial infections after craniocerebral operation is related to the operation duration,cerebrospinal fluid leakage,external ventricular drainage,laying the drainage-tube,open craniocerebral injury.

Study　on　duration　of　comfortable　temperature　in　forest　tourist　areas　in　subtropical　zone;

All of the red tide incidents in South China Sea since 1980 ~2004,the spatial and temporal distribution of the events,and the change characteristics of the average duration of the red tides were analyzed.

The temperature of the reactor was lowered from 55℃ to 20℃ in case of heating failure and the duration in the low temperature were 1,5,12 and 24h respectively.

The statistical relationship between the occurrence frequency and the duration time of sand-dust storms in China;

The way calculating the duration time of inductor current in every work cycle was respectively given,when power switches were turned off in Boost a.

The sand-dust storm data compiled by the China State Meteorological Bureau for the period of 1960 to 2000 are analyzed to find the distribution of the sand-dust storm occurrence frequency against the duration time.

The formulas of persistence time and arrival time are given,which are used for temporal filtering technique.