نتایج جستجو برای: electrooptical effect
تعداد نتایج: 1641783 فیلتر نتایج به سال:
these days, all department stores make an effort to provide their clients with valuable products in order to project the best image for them. as a result, clients’ comprehension risk will decrease and they will be more willing to repurchase. having a good image is really important for the department stores because it makes an impression on clients’ comprehension of both quality and risk. consid...
the aim of this study is investigating the effect of teaching “metacognitive strategies” on the way which scientific information retrieval workes by the using of google scholar searching machine on the students of ms in the psycology & education faculty of allameh tabatabayi university in 2007-2008 academic year. the statistical community was the students of ms in psychology & education facult...
-------------------------------------------------------------In the search for materials suitable for optical limiting applications to protect eyes and electrooptical sensors against laser radiation, fine carbon particles suspended in a liquid have been shown to possess highly desirable properties. This publication reports on the measurement of the threshold energy fluence for optical limiting ...
The liquid crystals (LC), due to their naturally high bulk ordering, strong birefringence and easy electrooptical driving, serve as matrix in the nanocomposites doped with non-mesogenic or mesogenic nanoparticles. The nanocomposite’s structural units exhibit very complex molecular form indicating the strength and the intermolecular interaction between the matrix and dopant’s molecules. Hydrogen...
Angle-resolved linear dichroism is a recent technique that exploits images recorded using an illumination field whose polarization angle is sequentially rotated during acquisition. It allows to retrieve orientation information of the fluorescent molecules, namely the average orientation angle and the amplitude of the fluctuations around this average. In order to boost up the acquisition speed w...
The development of new materials suitable for electrooptical studies has recently received a great deal of attention. One strategy deals with the preparation of zwitterionic molecules which are provided with a very high ground-state dipole moment [1, 2]. Michl and coworkers have presented in 1999 a tropylium ylide [12-C7H6-CB11H11] with a dipole moment of 11.25 D and a first hyperpolarizability...
Refined Kerr electrooptical fringe-pattern methods are used to study time and space variations in the electric field between the electrodes of parallel-plate capacitors filled with liquid nitrobenzene. Photographs of fringe-pattern data recorded during application of high direct (both positive and negative) and sinusoidal voltages, ranging in frequency from 40 to 200 Hz, are compiled to enable ...
Fused silicon dioxide, multiparameter flow transducers with 50 microns internal square cross section and approximately 60 microns length can simultaneously measure DC and RF impedance as well as fluorescence and multiple-angle light scattering. A spherical version of such a transducer was mounted in an EPICS CVA flow-cell housing and was installed on a research prototype equipped with an argon-...
Charge trapping/detrapping within thin solid films of the organic photoconductive materials Sudan I and Disperse Red I was investigated. Charge trapping took place under an external bias upon irradiation. Trapped charges could be stored for long times in the dark under open-circuit or short-circuit conditions and could be removed (detrapped) with irradiation at short-circuit. These substances s...
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