1M hydrochloric acid (1M HCl), and 68.0–70.0% nitric acid (HNO3) were obtained from Samchun Chemicals (Seoul, Republic of Korea). Nickel (Ni) foam (porosity 93%) with 0.9 mm thickness was purchased from Goodfellow (Huntingdon, UK). 2.2. Synthesis of MIL-100 (Fe) Metal-Organic ...
A single-channel FMCW radar (BitSensing Inc., Seoul, Korea) [34], as shown in Figure 6b, was used to collect and record the biometric information of the PSG subjects. The radar specifications are listed in Table 1. This radar, a 3-channel radar comprising one transmitting antenna and ...