PLOT-cryoadsorption concentrates headspace vapors by sweeping them through porous layer open tubular (PLOT) capillaries chilled to 0 °C promote adsorption onto an alumina layer. Compared passive concentration employing activated charcoal strips (ACSs) as adsorbents, has several potential advantages for extracting ignitable liquid (IL) residue from fire debris evidence. Capillary vapor traps can...

The polarimetric synthetic aperture radar (PolSAR) provides us with a two-by-two scattering matrix data set. ensemble averaged coherency in an imaging window derived using has all non-zero elements its three-by-three matrix. It is full 3 × that bears nine real-valued and independent parameters inside. In the proposed decomposition method, G5U, we preprocess observed [T] by two consecutive unita...

Catalytic activity of AlHMS was investigated as a cheap heterogeneous reusable catalyst in some multi-component reactions for the synthesis of various chromenes. Three-component reaction of 2-hydroxy-naphtoquinone with an aromatic aldehyde and dimedone or barbituric acid in H2O under reflux conditions was performed using AlHMS in relatively good yields. The approach was more extended using psue...