نتایج جستجو برای: electrooptical effect
تعداد نتایج: 1641783 فیلتر نتایج به سال:
in this investigation the effect of external field on the electron density of nanostructures of cds, cdse, cdte, gaas and polymeric structure of three, four, five and six units of cds as a kind of nanosolar cells has been studied theoretically. as modeling this system in nanodimension, molecular structures has used. specific properties of molecular structures permit us to consider different sym...
the present study seeks to determine the effect of explicit instruction of metacognitive strategies on iranian high school students’ reading comprehension ability. it also attempts to investigate the relationship between the learners reading comprehension and metacognitive strategies. furthermore, the study investigates whether iranian efl female high school students are high, medium, or low me...
this thesis attempts to investigate the effects of prelistening activities on enhancing iranian efl learners` listening comprehension. the present study investigated ways in which learners` background knowledge could be activated in order to enhance their l2 listening comprehension by limiting the number of possible text interpretations prior to listening. the experiments conducted in this stud...
the present study was conducted to investigate the effect of implicit focus on form through input flooding and the effect of noticing, explicit focus on form on linguistic accuracy. to fulfill the purpose of the study, 86 iranian pre-intermediate efl learners of one of the language institutes were chosen by means of administering ket as the homogeneity test. these learners were pretested throug...
Indium-tin oxide films are deposited by low plasma temperature RF sputtering on highly flexible modification of glycol polyethyleneterephtalate substrates. The produced layers are characterized with transparency over 82 % and sheet resistance of 86.9 Ω/square. The film’s conductivity was further improved by additional UV illumination from light source (365 nm), having power of 250 W. The influe...
Charge transfer at metallo-molecular interfaces may be used to design multifunctional hybrids with an emergent magnetization that may offer an eco-friendly and tunable alternative to conventional magnets and devices. Here, we investigate the origin of the magnetism arising at these interfaces by using different techniques to probe 3d and 5d metal films such as Sc, Mn, Cu, and Pt in contact with...
Introduction The very nature of marine oil spills massive quantities covering vast areas open ocean and/or coastline necessitates the use of satellite remote sensing to supplement other aerial observations. Remote sensing instrumentation is constrained to work in areas of the electromagnetic spectrum, which transmit sufficient quantities of radiation such as the microwave, thermal, near infrare...
A microcontroller-based photon counting system has been developed by the Laser and Medicine-Technology gGmbh, Berlin, Germany, in cooperation with the University of Athens. This microcontroller-based system controls, acquires, processes and stores the data from a high-resolution multichannel gas analyzer based on linear vibrational Raman scattering. The system described provides accurate photon...
Speckle photography is becoming an important method for deformation, displacement and tilt measurements. The technique will be even more attractive to the engineer when its application is in real time. Therefore, the developing process of speckle photography and the subsequent optical Fourier transformation of the photographs will be replaced. Bismuth silicon oxyde Bil2SiO20. has electrical and...
a novel silver (ag) nanocomposite electrode was proposed that fabricated from metal nanostructures and ionic liquids. the combined application of unique properties of nanomaterials and ionic liquids in the design of this ag nanocomposite results in electrodes with interesting advantages compared to the conventional metal disk electrode. in the first part of this thesis, the elecrocatalytic eff...
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