This paper presents a new concept for the remote detection of radioactive materials. The concept is based on the detection of electromagnetic signatures in the vicinity of radioactive material and can enable stand-off detection at distances greater than 100 m. Radioactive materials emit gamma rays which ionize the surrounding air. The ionized electrons rapidly attach to oxygen molecules forming...

The geophysical method (Cross-Hole Survey) was used to assess the bearing capacity of soil in study area build a water treatment plant. It noted, that velocities primary and secondary waves decrease at depths 4 5 meters compared above down, so, lithology or physical properties this specific have changed. also observed seismic wave are low general due medium density hardness soils area. Furtherm...

Hand line is a fishing gear consisting of single string and hook for widely used by fishermen in Malaumkarta waters. The purpose this study to identify the types fish resources caught waters with Drift Fishing system resource conservation. research was conducted 6 (six) times 3 locations from June September 2021. method survey using Handline Metal Jig drift at depths 50 meters meters. analysis ...

On-line nuclear meters have been in use in the coal industry for many years. They have been utilised for coal quality monitoring, in the control systems for coal blending, or for separating coals in the heavy media separation process. Their operation is based on the scattering or the absorption of incident gamma radiation, and the derived density or ash value is the result of a time-averaged me...

Terahertz waves are the electromagnetic radiation whose frequency ranges from millimeter waves to the far infrared, shown in Figure 1. While both sides of this range have had a long history of research and development, leading to already commercially available sources, detectors, meters, and many additional devices, the terahertz wave range is still in its infancy, representing the last unexplo...

Having combined the advantages of ground-based interferometric radar and Global Position System (GPS), a microwave radar with transponder for three-dimensional displacement monitoring method has been proposed. In this system, the active reflector ensures the long measurement distance at low antenna radiation power; the transponder provides the total solutions to antenna microwave leakage and mu...