Carbon fiber-synthetic foam core sandwich composites are widely used for many structural applications due to their superior mechanical performance and low weight. Unfortunately these structures typically have very poor acoustic performance. There is increasingly growing demand in mitigating this noise issue in sandwich composite structures. This study shows that marrying carbon fiber composites...

OBJECTIVE Evaluate the knowledge about male and female condoms among women living in subnormal agglomerate and identify sources of information and appropriate care to use. METHODS Household survey, descriptive, transversal and quantitative study with 300 women over 18 of João Pessoa, Paraíba, Brasil, who began their sexual life. The systematic sampling plan for data collection was used. The i...

The algae-induced odorous black water agglomerate (OBWA) is a phenomenon in which water turns black and emits odorous gas. It is an ecological and environmental problem that has occurred several times in Taihu, a large eutrophic shallow lake in China. In this study, the collected eutrophic water with different algae densities was used to simulate OBWA. The results revealed that the massive accu...

Various models have been devoted to the operation mechanism of porous diffusion electrodes. They are, however, suffering from the lack of accuracy concerning the acid-film thickness on which they are based. In the present paper the limiting current density has been measured for oxygen reduction on polytetrafluorine-ethyl bonded gas-diffusion electrodes in phosphoric acid with and without fluori...

This paper presents a systematic study of the investigation nanoparticle (NP) agglomerate films fabricated via depositing spark-generated Au, Ag, and Au/Ag NPs onto quartz microscope coverslips in low-pressure inertial impactor. The primary focus is to characterize these nanostructures examine their potential application surface-enhanced Raman spectroscopy (SERS). characterization produced was ...

Structural Current Collectors In article number 2202321, Jae Young Seok, Sanha Kim, and co-workers introduce a structurally hierarchical copper current collector for lithium metal battery anodes. The nanorods inside the micro-cavities concentrate local electrical field onto inner surfaces of microstructures, enabling inward nucleation lithium. subterraneously grown tends to agglomerate, resulti...