Electromagnetic Shielding Capacity of Wood Char Loaded with Nickel

Wood Char Depth: Interpretation in Fire Investigations

INTRODUCTION Wood char depth patterns have been considered important by fire investigators in most countries where significant use is made of wood as a construction material. This is natural, since post-fire patterns found on wood members are generally more pronounced and extensive than those found on many other construction materials. But the present state of affairs has been such that there i...

PolyCond: electromagnetic shielding with conducting polymers

Picture this: your mobile phone is lying on your desk, close to the speaker of your computer system. A few seconds before you receive a call or SMS message on your mobile phone, the speaker makes a buzzing noise. Is this clairvoyance of the speaker? No way. Here, the wire to the speaker acts like an antenna that picks up and amplifies the signal it receives from the mobile phone network. This i...

Formation of Dioxin during Smoldering of CCA Treated Wood Char

Production of dioxin during the smoldering of wood char containing chromated copper arsenate (CCA) was investigated. Preliminary results are presented for the smoldering of treated wood char at 300 and 400°C, as a function of char loading, smoldering time and inlet oxygen concentrations. PCDF (mainly Cl4DF) were the preferred products of smoldering, and the results indicate the dependence of PC...

Electromagnetic Shielding Property of Cfrp Composite Laminates

Parametrically shielding electromagnetic fields by nonlinear metamaterials.

An analytical theory is developed for parametric interactions in metamaterial multilayer structures with simultaneous nonlinear electronic and magnetic responses and with a near-zero refractive index. We demonstrate theoretically that electromagnetic fields of certain frequencies can be parametrically shielded by a nonlinear left-handed material slab, where the permittivity and permeability are...