Methods and systems for detecting potential items of interest in target samples, using nuclear resonance fluorescence, utilize incident photon spectra that are narrower than traditional bremsstrahlung spectra but overlap nuclear resonances in elements of interest for purposes of detection, such as but not limited to the detection of threats in luggage or containers being scanned. The device further includes an upper bar carrying a pair of bar end pulleys disposed at opposed first and second end portions thereof and a lower bar cooperating with the upper bar to support the sheet-shaped information medium. A second voltage is applied between the first gate pattern and the substrate in the first MOSFET and a third voltage between the third gate pattern and the substrate in the third MOSFET to measure capacitances. This relational tree appears as a plurality of entities in a mark up language to the business object layer and the information in the relational database is accessible via the relational tree. The short, horizontal side of the L shaped bracket would hold one or more of the deck rim joists or deck supporting beams.