In this work, we report synthesis of superparamagnetic iron oxide nanoparticles at room temperature using microemulsion template phase consisting of cyclohexane, water, cetyltrimethylammonium bromide CTAB as cationic surfactant and butanol as a cosurfactant. Silica surface modification of the as prepared nanoparticles was performed by adding tetraethoxysilane TEOS to alkaline medium. The struct...

Room temperature dielectric and antibacterial behavior of thiosemicarbazide capped low dimension Silver and Gold nanoparticles were studied. The effect of size on the properties, by capping silver (Ag) and gold (Au) nanoparticles by thiosemicarbazide (TSC) was investigated. The nanoparticles were synthesized by chemical reduction method. The structural formation, surface morphology, phase stabi...

objective: to determine the epidemiology and pattern of emergency operating room workload in nemazee hospital affiliated with shiraz university of medical sciences, shiraz, iran. methods: all surgical emergency operations which were performed in nemazee hospital, shiraz, iran were collected over twelve months (september 2007 to september 2008). the data obtained included indications, presenting...

Suppose we are given a graph where vertices correspond to students in the class and edges correspond to friendships. What is the maximum number of students we can put in the exam room, if no two friends should be in the room? If no two friends are allowed to sit in the exam room, there will be no edges between the people sitting in the exam room. This essentially defines the concept of an Indep...

Using the concept of genre, we examined the use of Team Room to facilitate collaborative work in one organization. Team Room is a collaborative application built within Lotus Notes and designed specifically to support teams within organizational settings. We studied three teams’ communication in Team Room over seven months and found that some of the genres they enacted formed sets of interdepen...

Variation in microstructural features of 2024 aluminum alloy plastically deformed by equal channel angular pressing (ECAP) at room temperature, was investigated by X-Ray diffraction in this work. These include dislocation density dislocation characteristic and the cell size of crystalline domains. Dislocations contrast factor was calculated using elastic constants of the alloy such as C 11, C 2...