Learn More
The molecular mechanisms involved in plant tolerance to either drought or cold have been extensively studied in many plant species. However, few studies have focused on their comparisons especially using non-model plants with strong tolerance to both stresses. Ammopiptanthus mongolicus (Maxim. ex Kom.) Cheng f. is the only evergreen broadleaf shrub grown in(More)
Polar Mesosphere Summer Echoes (PMSE) are strong radar echoes that have been observed typically by the VHF radar in summer polar mesosphere and have closely relation with charged dust particles. Theoretical analysis and extensive experimental data show that polar mesosphere summer echoes (PMSE) present some kind of regular periodic changes, such as(More)
This paper firstly introduces elementary knowledge of bio-electromagnetic dose, and then elaborates on the method and steps of theoretical bio-electromagnetic dose used to compute the electromagnetic dose absorbed by human body at the frequency 300MHz and 3GHz. Afterwards, the finite-difference time-domain (FDTD) method is utilized to analyze the dielectric(More)
The reflection, transmission, and absorption coefficients of a dusty plasma slab at terahertz frequency are simulated using the shift operator finite-difference time-domain (SO-FDTD) method. The problem which incorporates both frequency dispersion and dust particles' contribution is solved for the electromagnetic waves propagation in dusty plasmas. The(More)
Polar summer mesopause region belong to dusty plasma, the impact of dusty plasma on the electromagnetic signals have been verified by lots of experiments. If the system of space microwave energy transmission will be used in high latitudes of both hemispheres in the future, we need to pay more attention on dusty plasma in polar mesosphere. In the paper we(More)
From EISCAT VHF radar observations it is evident that polar mesosphere summer echoes (PMSE) often show obvious layers. PMSE overshoot describe the effect of dusty plasma parameters on overshoot characteristics curve. In this paper we obtain and compare different PMSE overshoot characteristic curves (OCCs) at 80–85km and 85–90km in one hour(More)
  • 1