Its not true that electrocaloric effect (ECE) is observed only in ferroelectric polymers. ECE can be found in any typical dielectric material. If polarization switches from one direction to the other upon application or withdrawl of electric filed, the temperature of the material changes. It happens both in organic as well as inorganic materials. It is found that the EC coefficent is high near ferroelectric phase transition temperature.
The effect it has on polymers is that it makes them condensate.
Todd C. MacLeod has written: 'Modeling of metal-ferroelectric-semiconductor field effect transistors' -- subject(s): Field effect transistors, Current density, Electric potential, Ferroelectric materials, Mathematical models, Hysteresis
In physics the ferroelectric effect is an electrical phenomenon whereby certain materials may exhibit a spontaneous dipole moment, the direction of which can be switched between equivalent states by the application of an external electric field. Placing a ferroelectric material between two conductive plates creates a ferroelectric capacitor. Ferroelectric capacitors exhibit nonlinear properties and usually have very high dielectric constants. The fact that the internal electric dipoles can be forced to change their direction by the application of an external voltage gives rise to hysteresis in the "polarization vs voltage" property of the capacitor. In this case, polarization is defined as the total charge stored on the plates of the capacitor divided by the area of the plates. Hysteresis means memory and ferroelectric capacitors are used to make ferroelectric RAM for computers and RFID cards. Above retrieved from Answers.com Viper1
recycle them
No, the Tyndall effect is not observed in true solutions. True solutions contain solute particles that are smaller than the wavelength of visible light, so they do not scatter light and appear transparent. The Tyndall effect is only observed in colloids or suspensions where the particles are larger and can scatter light, making the solution appear cloudy or opaque.
conditions of photoelectric effect
Yes, the Tyndale effect was also observed in suspensions.
The dependent variable is the observed one. If there is an experimental effect, then the changes you see in this variable depend on what you did to the manipulated variable.
Andreas Lendlein has written: 'Shape-memory polymers' -- subject(s): Polymerization, Shape memory effect, Biocompatible Materials, Smart materials, Polymers, Chemistry, Polymeric composites
no effect of mixing was observed for the storage modulus (G′) of gluten for any of the flours.
When particles are observed, they behave differently than when they are not observed. This is known as the observer effect in quantum physics.Particles can exhibit both wave-like and particle-like behavior, depending on whether they are being observed or not.
The change in observed wavelength or frequency of a wave caused by the relative motion between the source of the wave and the observer is called the Doppler effect. This effect is commonly observed in situations like the sound of a passing siren changing pitch as it moves towards or away from a listener.