as we know sol-gel is one of the most important techniques for thin film preparation. in this paper, high transmission silica thin films have been prepared by dip-coating process from a new silicon-alkoxide solution. the prepared sol was stable for 45 days which is very important to characterize the coating process. the optical properties as a function of aging time, withdrawal rate, and heat t...

conclusions applying a simple and brief scale that incorporates the different dimensions of hiv transmission risk may provide policymakers and harm reductionists with a better understanding of hiv transmission in this key group and may be advantageous for evaluating intervention programs. results we extracted 7 items based on first factor, which were accounted for 21% of the variations. the fin...

in this paper, a complete model of an electro hydraulic driven dry clutch along with its performance evaluation has elucidated. through precision modeling, a complete nonlinear physical and full order sketch of clutch has drawn. ultimate nonlinearities existent in the system prohibits it from being controlled by conventional linear control algorithms and to compensate the behavior of the system...

introduction: spirochetes of borrelia can be visualized directly in infected ticks by dark-field microscopy. inoculation of in phosphate buffered saline (pbs) suspension of ground argasid soft ticks to susceptible animals or allowing the ticks to feed on the same species followed by microscopic examination of the animals’ blood have also been practiced. with the advent of molecular methods and ...

the output error of the globoidal cam mechanism can be considered as a relevant indicator ofmechanism performance, because it determines kinematic and dynamical behavior of mechanicaltransmission. based on the differential geometry and the rigid body transformations, themathematical model of surface geometry of the globoidal cam is established. then we present theanalytical expression of the ou...

we design a novel nano-ring resonator using two-dimensional photonic crystal (2d-phc), for bio-sensing applications. the structure of biosensor is created by two-curve-shaped ring resonator which sandwiched by two waveguides. these are configured by removing one row of air holes. the refractive index of sensing hole is changed by binding an analyte. hence, intensity of the transmission spectrum...

this paper presents a framework for long term transmission expansion planning in competitive, electricity markets. transmission lines and phase shifters are taken into account as expansion options. maximization of the network users' benefits, with satisfying security constraints are considered as the criterion for transmission expansion planning. the elements of the objective function are the...

technology transmission has engaged not only developing countries but also many western research communities. foreign direct investment is a commonly used method to transfer the technology. since specific studies on factors affecting the transmission of technology through foreign direct investment has not been made in nanotechnology, the purpose of this study is to identify the issues affecting...