Single crystals consisting various surface morphologies and epitaxial structures were applied to investigate the effect of other phase regions in the vicinity of a given tethered chains-covered area having a certain molecular weight of amorphous brushes. The designed experiments demonstrated that regardless of the type of surface morphology (patterned and especial mixed-brushes, homo and co...

objective(s) physiological changes in the body may be utilized as potential triggers for controlled drug delivery. based on these mechanisms, stimulus-responsive drug delivery has been developed. materials and methods in this study, a kind of poly (n-isopropylacrylamide-acrylamide) membrane was prepared by radical copolymerization. changes in swelling ratios and diameters of the membrane were i...

A single-phase to three-phase drive system composed of two parallel single-phase rectifiers, a three-phase inverter and an induction motor was proposed. The system combines two parallel rectifiers without the use of transformers. The system model and the control strategy, including the PWM technique, have been developed. The complete comparison between the proposed and standard configurations h...

A simplified spray environment is used to represent the multicomponent nature of liquid fuels and to examine the sensitivity of their vaporization behavior to the various liquidand gas-phase models. Liquid-phase models are the diffusion limit, the infinite diffusion, and the vortex. Gas-phase models are the Ranz-Marshall correlation and the axisymmetric model. Three subsets of equations are sol...

background: single leg drop landing is one of the common sport activities that have greater likelihood of leading to traumatic oflower extremity. however, there is limited understanding of biomechanics of this maneuver. hence, this study aimed to compare the activities of lower limb muscles during pre- and post phases of single leg drop landing. methods: this semi-experimental research of 13 ph...

regarding the ecommerce growth, websites play an essential role in business success. therefore, many authors have offered website evaluation models since 1995. although, the multiplicity and diversity of evaluation models make it difficult to integrate them into a single comprehensive model. in this paper a quantitative method has been used to integrate previous models into a comprehensive mode...