Electrical considerations In DC or low frequency AC applications, the most important electrical characteristics of insulating materials are insulation resistance, dielectric resistance and printed wire resistance as well as breakdown strength. In high frequency and microwave conditions, dielectric constant, ...
microwave emissivity; vegetated land types; spectral features; temporal variation; land surface factor Graphical Abstract1. Introduction Microwave land surface emissivity (MLSE) is defined as the ratio of microwave heat radiation emitted from the land surface to that emitted from the blackbody at the ...
microwave emissivity; vegetated land types; spectral features; temporal variation; land surface factor Graphical Abstract1. Introduction Microwave land surface emissivity (MLSE) is defined as the ratio of microwave heat radiation emitted from the land surface to that emitted from the blackbody at the ...
The distance between the Tx and the center of the URA, referred to as the Tx–Rx separation distance, is indicated in Table 2. The height of the Tx and Rx antennas was 0.90 m and 1.62 m above the floor level, respectively. Figure 6. Tx and Rx antennas in positions Tx1 (left) and...
Table 3. The effect of cultivation density on agronomic traits of Pennisetum sp. In terms of seeding method, the Pennisetum sp. fresh yield, blade number, stem diameter, plant height and tiller number of A were lower than those of C by 25.4%, 44.0%, 19.0%, 10.0% and 33.3%, respectiv...
where 𝑊2W2 is the above-ground biomass of Xing’an larch and 𝐷𝐵𝐻DBH is the measured diameter at breast height. Figure 3a,b show the detailed information of the forest AGBs at the two test sites. Figure 3. AGB details for the two test sites. The changes in each bar mean ...
In comparison, there was a difference in the position and height of the peak, which is consistent with the study of Garima et al. [13]. As the heating rate increased from 10 °C/min to 40 °C/min, the initial and final temperatures all shifted slightly to a higher temperature range,...
Then, 200 g of each sample were weighed and placed into a cylinder measuring sample box with a diameter of 35 mm and a height of 20 mm, then sealed for eight weeks to achieve radioactive secular equilibrium between 226Ra and its daughters. The measurements of activity concentrations were ...
synthetic aperture radar (SAR); automatic target recognition (ATR); multi-aspect SAR; prototypical network; small number of training sample1. Introduction SAR (synthetic aperture radar) is an active microwave remote sensing device that images an object by transmitting electromagnetic waves and ...