N-acetylprocainamide [HRP]

The 2014 South Napa Earthquake damaged mobile (manufactured) homes in Northern California. The authors conducted field surveys of mobile home communities in the City of Napa, California. This paper summarizes the observations and presents an analysis of mobile home response. The results are suggestive of key factors at work in mobile home seismic behavior. Homes fell from their supports (collapsed) as a result of ground shaking with large peak ground velocities apparently from near-fault pulse effects. Analyses using ASCE 7-10 maximum considered earthquakes (MCEs) and design earthquakes (DEs) indicate that large numbers of mobile homes having no explicit design for lateral forces are likely to collapse during these earthquakes. The uncertainty and possible wide range of key parameters, however, make precise response prediction difficult for specific homes. A simplified damage function is suggested that may be useful for regional earthquake damage estimation. Recommendations are made for ways to improve mobile home seismic performance.

The different complexation between surfactants and polymers can influence the hosting properties of the formed system. If the polymer is hydrophobically modified, the behavior is even more exciting. Therefore, we study the surfactants impact on hydrophobically modified sodium polyacrylates (NaPAC (n) , n = 10 and 18), polyacrylic acid (PAA), and sodium polyacrylate (NaPA) being also considered for comparison. Ethoxylated, anionic, and cationic surfactants with the same hydrophobic chain length (i.e., C-12) are employed. Generally, the occurrence of critical aggregation concentration depends on the interplay of hydrophobic and electrostatic forces between species. For example, the nonionic surfactant interacts most strongly with PAA (by hydrogen bonds), the anionic one with NaPAC(18) (by weak hydrophobic forces), and the cationic surfactant with NaPA (by strong electrostatic interactions). The hosting ability of the systems is tested using pyrene and 3-methoxy-7H-benzo[de]anthracen-7-one (MBA) as fluorescent guests. The fluorescence data reveal that the probes solubilize in the micellar palisade layer, their lifetime and/or intensity being higher in these protected media. Moreover, it is exposed that the less hydrophobic MBA interacts with the surfactants and polymers as well. This leads to dye-chemical species complexes with short fluorescence lifetimes. All the present chemical species interact with dodecanol impurity.