The phonon and vtbratlonal exciton spectra are suggested as criteria for true solid solutions of molecular crystals. The short range character o f the interactions that determine both the p h o n o n and excl ton properties makes these bands ideal for distinguishing between truly random mLxed lattices and segremated microscopic domains. Raman studies o f the chemical13, mixed p-dichlorobenzene-...

The ability of uropathogenic E. coli (UPEC) to cause symptomatic UTI is associated with the expression of a variety of virulence factors. Biofilm formation enables UPEC to resist the flow of urine and increases its tolerance to antimicrobials and the host immune response. The measurement of biofilm formation in vitro is affected by the type of culture medium used. The aim of this study was to e...

The photoluminescence (PL) spectrum of KBr0.95 I0.05:Eu 2+ (0.05mol %) mixed crystal gives emission of europium at 420nm. This 420nm emission is due to the transition from T 2g component of 4f 6 5d configuration to the ground state 8s of europium. When adding Tl + ion as co-activator in KBr0.95 I0.05:Eu 2+ (0.05mol %) mixed crystal the same PL emission observed and enhanced their PL intensity. ...

in the contact metamorphic aureole of the next to the granodiorite intrusive body in the hassan-abaad village of yazd, high frequency garnet in different metamorphic zones is notable, which some contain garnet crystal with obvious zoning. obtained data from core to rim of garnet by sem point analysis, show that garnet crystals belong to grandite series, and sharp variation of al and fe from cen...

Effect of electro migration on crystal structures of platinum nanowire (Nano bridge) during Nano-gap formation is investigated by means of Transmission Electron Microscopy (TEM). Selected area diffraction patterns as well as bright field images are used for this investigation. There were severely recessions in the polycrystalline Nano bridge and crystal structures around the nanogap changed ...

The inactivation of foot-and-mouth disease virus was studied by means of the interaction of neutral red, Toluidine Blue, and methylene blue with visible light. The virus, Type A, strain 1, CANEFA of Argentine origin, was grown in tissue culture and tested in the crude and clarified state. Virus and dye were mixed and incubated together at 4 C for 45 min in the dark, or were mixed and immediatel...

pure anatase titania (tio2), mixed 1.0 wt.% cerium-anatase titania (1.0 wt.%ceo2-tio2), and mixed 1.0 wt.% zirconia-anatase titania (1.0 wt.%zro2-tio2) nano powders were synthesized by co-precipitation method and characterized using x-ray diffraction (xrd), brunauer-emmett-teller (bet) surface area analysis, uv-vis diffuse reflectance spectroscopy (drs), and transmission electron microscope (te...

calcium crystals are evident in many parts of anther. there is little literature about differentiationof crystal-containing cells and crystal formation during anther development. petunia hybrid grandifloraflower buds collected at different developmental stages were fixed and studied. the results revealed thatyoung anthers are tetrasporangiate and in each of the four corners, the primary parieta...

The oxidation behavior of the Ni-base single-crystal superalloy AM1 was investigated over temperature range 750–1300 °C. use stepwise multi-temperature thermogravimetric analysis (SMT-TGA) showed presence a transient regime. This regime can be modeled by initial formation fast-growing mixed oxide and then ?-alumina gradually covering metal/oxide interface. model helps to determine time required...

Zinc tris Thiourea Sulphate (ZTS) is a semi organic non-linear optical crystal. The ZTS and phosphate mixed (in different mol %) ZTS crystals have been grown from aqueous solution using the slow evaporation method. Single crystal XRD were carried out for ZTS and phosphate mixed ZTS crystals to determine cell parameters. FTIR analysis identified modes of vibrations of different molecular groups ...