The present invention relates to a radio device and method for purchasing via a cellphone from a vendor. One cellphone user dials one code sequence to make the vendor distrubute commodity and charge from the cellphone user. The present invention also relates to one kind of on-line stocking managemen.....
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• Conjugated polymers with hole-blocking properties for better efficiency and lifetime of device • Prevents interfacial-mixing in devices • Improved ability of polymers transporting electrons • Soluble in polar media such as water and methanol
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The advantages of the UC Davis surfactants over other cleavable surfactants are considerable, meaning that the UC Davis surfactants will likely be the preferred surfactants in applications requiring chemodegradation.
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