Based on the optical characteristics of PLZT (Lead Lanthanum Zirconate Titanate) electro-optic ceramic, two kinds of electro-optical deflectors, triangular electrode structure and optical phased array technology, are studied in detail by using transverse electro-optic effect. Theoretically, the electro-optic deflection characteristics and mechanisms of the deflectors are analyzed; experimentall...

the electro-osmotic consolidation is a method to improve geotechnical properties of soft clayey soils. the feasibility of electro–osmotically induced consolidation can be examined through the soil coefficient of electro–osmotic permeability (ke) and the electro–osmotic coefficient of water transport (ki). using an electro-osmotic testing cell, ke and ki parameters were measured in urmia lake we...

Formic acid (HCOOH), as a natural biomass, is promising feedstock for low temperature fuel cells, and rational development of efficient catalysts electrochemical dehydrogenation HCOOH plays key role toward its full chemical energy utilization. Herein, Pd nanosheets decorated with SnO2 nanoflakes (denoted hereafter [email protected]2-NSs) are designed composite catalyst, showing superior perform...

In this study, γ-MnOOH nanorods synthesized by polysaccharide- assisted hydrothermal method as an efficient electrocatalyst for urea oxidation. The structure and morphology are confirmed X-ray diffraction scanning electron microscopy (SEM). material, which contains hydroxyl groups has average oxidation state of Mn three demonstrated XPS, exhibits excellent electrocatalytic activity towards reac...

Propylene oxide is a crucial feedstock in the plastic industry. The direct epoxidation of propylene using O2 considered among most promising means producing oxide. Here we report an integrated photo-electro-heterogeneous catalytic system for with O2. Bismuth vanadate (or TiO2) photocatalyst and Co-based electrocatalyst produces H2O2. A titanium silicalite-1 heterogeneous catalyst subsequently e...

The electrocatalytic oxidation of small organic compounds such as methanol or formic acid has been the subject numerous investigations in last decades. motivation for these studies is often their use fuel so-called direct cells, promising alternatives to hydrogen-fueled proton exchange membrane cells. fundamental research spans from screening identify best performing catalyst materials detailed...

Piezoelectric materials can harvest tiny mechanical energy existing in the environment, and have strong ability to convert signals into electrical signals. Piezo-electro-chemical coupling be realized via combining piezoelectric effect of with electrochemical redox effect. In recent years, piezo-electro-chemical has attracted a lot attention from researchers harvesting vibration treat dye wastew...

Evaluation of the Academic Preparedness and Final Performance of Students of Electro-Techniques Field in Technical and Vocational Schools A.A. Khallaaghi, Ph.D. E. Ghaasemi Pooyaa, Ph.D. To determine the extent of the electro-techniques students' preparedness in order to assess their success in learning the practical skills and attitudes prescribed by the curriculum, a cluster sam...

Free vibration of a simply-supported magneto-electro-elastic doubly-curved nano-shell is studied based on the first-order shear deformation theory in the presence of the rotary inertia effect. To model the electric and magnetic behaviors of the nano-shell, Gauss’s laws for electrostatics and magneto statics are used. By using Navier’s method, the partial differential equations of motion are red...

poly (n-bromosuccinimide) (pnbs) as a mild, efficient, non-acidic, polymeric and heterogeneous catalyst was applied for simple conversion of epoxides into thiiranes by treatment with kscn or (nh2)2cs at room temperature. aliphatic and aromatic epoxides converted into their corresponding thiiranes under mild conditions. all reactions proceeded in short reaction times and afforded the correspondi...