nanocomposite materials, including noble metal nanoparticles embedded in a dielectric host medium, are interesting because of their optical properties linked to surface plasmon resonance phenomena. for studding of nonlinear optical properties and/or energy transfer process, these materials may be excited by ultrashort pulse laser with a temporal width varying from some femtoseconds to some hund...

Background and Objectives: Pomegranate juice (PJ) contains large particles that stick to evaporator walls causing off flavors in the concentrate due to burning. Microfiltration is used to clarify PJ. Fouling is a limiting phenomenon that can prevent the industrialization of membrane clarification. Changes in the geometry of the membrane module such as using baffles are useful to decrease this p...

The inhibition performances of nafcillin (III), methicillin (II) and penicillin G (I) on the corrosion of copper in HCl was studied and tested by weight loss, Tafel polarization, SEM, UV-vis spectrophotometry, molecular dynamics method and quantum chemical calculations. Polarization curves indicated that the studied inhibitors act as mixed-type inhibitors. The values of inhibition efficiency an...

The evolution of proteins with novel function is thought to start from precursor proteins that are conformationally heterogeneous. The corresponding genes may be duplicated and then mutated to select and optimize a specific conformation. However, testing this idea has been difficult because of the challenge of quantifying protein flexibility and conformational heterogeneity as a function of evo...

Surface charge dynamics can play an important role in electric field distributions both AC and DC insulation systems. In this paper the theory behind surface is introduced with a particular focus on calculation of divergence; operator which used to determine movement constrained surface. A detailed discussion model implementation provided validated against analytical solution. systems are then ...

Two challenging scientific disciplines, i.e., the physics of glasses [Anderson, Science 267, 1615 (1995); Kennedy and Norman, 309, 75 (2005)] interface chemistry [Sanders, 125 Questions: Exploration Discovery (Science/AAAS, 2021); Yates Campbell, Proc. Natl. Acad. Sci. U. S. A. 108, 911 (2011)], converge in research on dynamics glass surfaces. In recent decades, studies have revealed that exhib...

The dynamics of quasi-geostrophic flow with uniform potential vorticity reduces to the evolution of buoyancy, or potential temperature, on horizontal boundaries. There is a formal resemblance to two-dimensional flow, with surface temperature playing the role of vorticity, but a different relationship between the flow and the advected scalar creates several distinctive features. A series of exam...

The study of surface chemical reaction dynamics is crucial to many important areas of research such as heterogeneous catalysis, photocatalysis, material corrosion and etching, to name just a few. Many fundamental questions, for example mechanisms of important catalytic reactions, rely on the study of surface reaction dynamics. Prof. Gerhard Ertl’s achievements in this area exemplify the importa...