Background: In this study the basic radiation properties of N-isopropylacrylamaide polymer gel dosimeter were determined together with verification of its soft tissue equivalency. Materials and Methods: The NIPAM gel was prepared and irradiated approximately 2 h after manufacturing. The magnetic resonance (MR) images were made 24 h after irradiation. The nuclear magnetic resonance (NMR) respons...

We investigate the effect of hydrophobic spacer on gel properties in a multicomponent system.

In the present investigation, lead iodate crystals were grown in silica gel at ambient temperature. The effect of various parameters like gel concentration, pH of gel, gel ageing, concentration of the reactants on the growth of these crystals were studied. Good quality crystals having different morphologies and habits were obtained. Some of These crystals were opaque and some were translucent.

The object of the present work is to study the quantum Hall effect through its symmetries and topological aspects. We consider the model of an electron moving in a two-dimensional lattice in the presence of applied in-plain electric field and perpendicular magnetic field. We refer to this as the two dimensional electric-magnetic Bloch problem (EMB). The Hall conductivity quatizations beyond the...

gelled propellants are improved propellants that can be considered as the final extension of liquid propellants. high specific impulse, good density and safety better than that of both solid and liquid propellants are advantages of the gel propellants. they are made by addition a suitable gellant to liquid propellants. in this research, nano al particles have been used in udmh gel fuel. the gel...

in this paper, polyacrylamide/chromium acetate gel polymer system was prepared as water shut-off system to control water production in one of the iranian oil reservoirs condition. effect of various parameters such as temperature (90 °c) and water formation from view point of salinity and divalent cations, was evaluated on the gelation kinetic and gel strength using bottle testing method. the re...

When a gel absorbs solvent from surrounding, stress field is created in the gel, and this causes complex dynamics of swelling behavior. Here we study effect for disk-shaped by rigorously solving diffusio-mechanical coupling equation. We show that (a) while macroscopic thickness radius increases monotonically time, compressed near mid-plane, (b) time depends on shear modulus $G$ its dependence w...

Abstract Background: Hirsutism is a common symptom presenting to primary care endocrinologists, gynecologists, and dermatologists. Management is usually a long and troublesome process. This study was designed to evaluate the effect of fennel topical gel on mild to moderate idiopathic hirsutism. Methods: The randomized, double-blind, placebo-controlled clinical trial was carried out from 2009 ...